CN207161703U - Internal expanding seal shaft - Google Patents
Internal expanding seal shaft Download PDFInfo
- Publication number
- CN207161703U CN207161703U CN201721058414.5U CN201721058414U CN207161703U CN 207161703 U CN207161703 U CN 207161703U CN 201721058414 U CN201721058414 U CN 201721058414U CN 207161703 U CN207161703 U CN 207161703U
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- internal expanding
- connection cover
- shaft
- main shaft
- sealing ring
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Abstract
The utility model discloses a kind of internal expanding seal shaft, aiming to provide one kind has and operating personnel can be facilitated to install, and the internal expanding seal shaft for the advantages of improving sealing effectiveness, its drip irrigation device is, the both ends of main shaft are respectively equipped with shaft-cup and connection cover, axle sleeve is arranged with main shaft between connection cover and shaft-cup, axle sleeve both ends are equipped with sealing ring, the connection cover is slidably connected on main shaft and contradicted with sealing ring, main shaft is provided with the actuator for being used for promoting connection cover towards sealing ring, actuator includes the internal expanding handle that contradicts and can rotate with connection cover, one end that internal expanding handle and connection cover contradict resembles a pear in shape setting, overall sealing effectiveness can be improved, sealing ring and axle sleeve can also be compressed more conveniently, to increase the fastness during installation of internal expanding seal shaft, it is also convenient for installation and removal of the operating personnel to internal expanding seal shaft.
Description
Technical field
It the utility model is related to sealing mechanism field, and in particular to a kind of internal expanding seal shaft.
Background technology
It is airtight to its in the production processes of product such as the cylinder head cover of automobile or engineering machinery engine, oil sump or valve body
Property detection be one of essential process.
The cylinder cap of engine is the important feature component of explosive motor, for closed cylinder and forms combustion chamber, side
Valve engine cylinder head, it is cast with water jacket, inlet opening, apopore, spark-plug hole, bolt hole, combustion chamber etc., inhead type
Engine cylinder cap, in addition to cooling jacket, also valve gear, air inlet and exhaust passage etc..
Throttle body is a valve for controlling engine suction how many, is a circular steel disc, and there is an axle centre,
Connect with acceleration cable, and controlled by acceleration cable, throttle body is a device on engine aspirating system, throttle body
Typically divide three parts：Actuator, throttle blade and TPS, they are typically encapsulated as one, the water on side
Pipe has been exhaust gas recirculation, reaches certain discharge standard.Axle is installed generally by the mode of internal expanding and sealed.
At present, Publication No. CN205401702U Chinese patent discloses a kind of formula internal expanding of tiltedly carving and seals mandrel, and it is wrapped
Connecting rod, stop collar and guide pad are included, wherein, the connecting rod is movably placed in the stop collar and passes through limiting component
Carry out spacing, one end of connecting rod connection force application part, the other end offers endoporus, and one end of the guide pad is arranged at
In the endoporus, sealing ring is provided with the other end, the force application part drive connection bar moves crush seal circle along stop collar
Outwards deformation is sealed.
Although this formula internal expanding sealing mandrel of tiltedly carving can improve sealing effectiveness to a certain extent, due to its sealing
Circle needs to extrude installation, and installation process is more difficult, and sealing ring easily wears in installation process, influences sealing effectiveness.
The content of the invention
The purpose of this utility model is to provide a kind of internal expanding seal shaft, and it, which has, to facilitate operating personnel to install, and carries
The advantages of high sealing effect.
Above-mentioned technical purpose of the present utility model technical scheme is that：
A kind of internal expanding seal shaft, including main shaft, the both ends of the main shaft are respectively equipped with shaft-cup and connection cover, connection cover and axle
Be arranged with axle sleeve on main shaft between lid, axle sleeve both ends are equipped with sealing ring, the connection cover be slidably connected on main shaft and with
Sealing ring contradicts, and main shaft is provided with the actuator for being used for promoting connection cover towards sealing ring, and actuator includes supporting with connection cover
Touch and the internal expanding handle that can rotate, one end of internal expanding handle and connection cover conflict resembles a pear in shape setting.
By using above-mentioned technical proposal, operating personnel, can be with this by shaft-cup, sealing ring, axle sleeve in installation process
Install with connection cover, be then fixed by internal expanding handle.Because axle sleeve both ends are equipped with sealing ring, even if a sealing ring
Breakage, another sealing ring can be also continuing with, it is possible to increase overall sealing effectiveness.
After installing, operating personnel can rotate internal expanding handle, interior during original state because internal expanding handle end resembles a pear in shape
The plane of handle that rises and connection cover contradict, and internal expanding handle both sides are prominent, and in rotary course, internal expanding handle both sides are to connection cover
Pressure is produced, promotes connection cover towards the side slip of sealing ring one, so as to which sealing ring and axle sleeve be compressed, increase internal expanding seal shaft peace
Fastness during dress, it is also convenient for installation of the operating personnel to internal expanding seal shaft.
Further set：The main shaft is fixed with two fix bars be arrangeding in parallel on the side of connection cover, fixed
Bar penetrates connection cover setting, and its end is connected with bearing pin, and bearing pin penetrates internal expanding handle and is interference fitted with it.
By using above-mentioned technical proposal, fix bar penetrates connection cover, and connection cover can be slided in the presence of internal expanding handle
It is dynamic, and the setting of bearing pin can allow internal expanding handle to be rotated centered on the center line of bearing pin, bearing pin is interference fitted with internal expanding handle
Internal expanding handle can be made to be maintained at certain state.
Further set：The main shaft is provided with bulge loop, and a sealing ring is between bulge loop and axle sleeve, another sealing
Circle is between axle sleeve and connection cover.
By using above-mentioned technical proposal, connection ring activity under the effect of internal expanding bearing pin, first sealing ring is produced and squeezed
Pressure acts on, and is transferred to second sealing ring by axle sleeve, so just two sealing rings can be extruded and compressed together, is easy to
Installation of the operating personnel to sealing ring.
Further set：Gap is left between the axle sleeve and connection cover, axle sleeve and bulge loop, between main shaft and connection cover
It is arranged at intervals.
By using above-mentioned technical proposal, act due to the activity of connection cover needs and to axle sleeve power, thus axle sleeve with
The slip of axle sleeve and connection cover can be facilitated by being arranged at intervals between bulge loop and connection cover.
Further set：The main shaft is embedded in shaft-cup, and is connected by attachment screw with shaft-cup.
By using above-mentioned technical proposal, main shaft is connected forward in shaft-cup and by attachment screw with shaft-cup, on the one hand
The installation of main shaft can be facilitated, on the other hand can ensure the fastness of main shaft installation, to ensure stability during overall use.
Further set：It is connected through a screw thread between the fix bar and main shaft.
By using above-mentioned technical proposal, it is connected through a screw thread between fix bar and main shaft, operating personnel when or else needing
Fix bar can be dismantled, so as to further facilitate the use of user.
Further set：The sealing ring is made up of elastomeric material, and axle sleeve is made up of rigid plastics.
In summary, the utility model has the advantages that：
Overall sealing effectiveness can be improved, moreover it is possible to sealing ring and axle sleeve are compressed more conveniently, it is close to increase internal expanding
Fastness during axle installation is sealed, is also convenient for installation and removal of the operating personnel to internal expanding seal shaft.
Brief description of the drawings
The utility model is further illustrated below in conjunction with the accompanying drawings.
Fig. 1 is the structural representation of embodiment 1；
Fig. 2 is the use state figure of embodiment 1.
In figure, 1, main shaft；11st, bulge loop；2nd, shaft-cup；3rd, connection cover；4th, axle sleeve；5th, sealing ring；6th, actuator；61st, internal expanding
Handle；62nd, fix bar；63rd, bearing pin；7th, gap.
Embodiment
Specific embodiment of the present utility model is described further below in conjunction with the accompanying drawings.
Technical scheme is used by the utility model：
Embodiment 1, a kind of internal expanding seal shaft, as illustrated, it includes the main shaft 1 of cylindrical shape.The left side of main shaft 1 is fixed
There is shaft-cup 2, for being connected to specific mechanical, the right side of main shaft 1 is arranged with connection cover 3.The leftward position of main shaft 1 is provided with bulge loop
11,11 outstanding setting of bulge loop.Axle sleeve 4 is also arranged with main shaft 1, axle sleeve 4 is made up of rigid plastics, and is located at bulge loop 11
Between connection cover 3.Between axle sleeve 4 and bulge loop 11, and gap 7 is left between axle sleeve 4 and connection cover 3.
As depicted in figs. 1 and 2, sealing ring 5 is equipped between axle sleeve 4 and bulge loop 11 and between axle sleeve 4 and connection cover 3,
Connection cover 3 is provided with actuator 6, and connection cover 3 can be promoted movable towards the side of sealing ring 5, can compress sealing ring 5 successively,
And pressure transmission, personnel easy to operation are installed to the compression of two sealing rings 5.
As shown in figure 1, actuator 6 includes internal expanding handle 61.Internal expanding handle 61 is located at the right side of connection cover 3, internal expanding handle
61 is overall in cylinder, facilitates operating personnel to hold.The left end of internal expanding handle 61 resembles a pear in shape setting, and the big side of its diameter is pressed close to
Connection cover 3.Connected between internal expanding handle 61 and connection cover 3 by fix bar 62 and bearing pin 63.
As shown in figure 1, fix bar 62 penetrates connection cover 3 and main shaft 1 successively, and it is connected through a screw thread with main shaft 1.Fix bar
62 are arranged with two in parallel, and the end of two fix bars 62 is connected with bearing pin 63, and bearing pin 63 penetrates internal expanding handle 61 and set.So
Internal expanding handle 61 can rotate around the center line of bearing pin 63.And fix bar 62 is connected through a screw thread with main shaft 1, can conveniently grasp
Make personnel to dismantle fix bar 62, consequently facilitating operating personnel use actuator 6.
Operating personnel can be installed shaft-cup 2, sealing ring 5, axle sleeve 4 and connection cover 3 with this, then in installation process
It is fixed by internal expanding handle 61.Because the both ends of axle sleeve 4 are equipped with sealing ring 5, even if a sealing ring 5 is damaged, another
Sealing ring 5 can be also continuing with.After installing, operating personnel can rotate internal expanding handle 61, because the end of internal expanding handle 61 is in
Pyriform, the plane of internal expanding handle 61 contradicts with connection cover 3 during original state, and the both sides of internal expanding handle 61 are prominent, rotary course
In, the both sides of internal expanding handle 61 produce pressure to connection cover 3, connection cover 3 are promoted towards the side slip of sealing ring 5 one, so as to seal
Circle 5 and axle sleeve 4 compress, fastness when increase internal expanding seal shaft is installed.
Above is preferred embodiment of the present utility model, not makees any formal limitation to the utility model,
It is every according to the technical essence of the utility model to any simple modification, equivalent change and modification made for any of the above embodiments,
Belong in the range of utility model technical scheme.
Claims (7)
1. a kind of internal expanding seal shaft, including main shaft（1）, it is characterised in that：The main shaft（1）Both ends be respectively equipped with shaft-cup（2）
And connection cover（3）, connection cover（3）With shaft-cup（2）Between main shaft（1）On be arranged with axle sleeve（4）, axle sleeve（4）Both ends are equipped with
Sealing ring（5）, the connection cover（3）It is slidably connected at main shaft（1）Upper and and sealing ring（5）Contradict, main shaft（1）It is provided with and is used for
By connection cover（3）Towards sealing ring（5）The actuator of promotion（6）, actuator（6）Including with connection cover（3）Contradict and can revolve
The internal expanding handle turned（61）, internal expanding handle（61）With connection cover（3）One end of conflict resembles a pear in shape setting.
2. internal expanding seal shaft according to claim 1, it is characterised in that：The main shaft（1）Close to connection cover（3）Side
On be fixed with two fix bars be arrangeding in parallel（62）, fix bar（62）Penetrate connection cover（3）Set, and its end is connected with
Bearing pin（63）, bearing pin（63）Penetrate internal expanding handle（61）And it is interference fitted with it.
3. internal expanding seal shaft according to claim 1, it is characterised in that：The main shaft（1）It is provided with bulge loop（11）, one
Sealing ring（5）Positioned at bulge loop（11）With axle sleeve（4）Between, another sealing ring（5）Positioned at axle sleeve（4）With connection cover（3）Between.
4. internal expanding seal shaft according to claim 3, it is characterised in that：The axle sleeve（4）With connection cover（3）, axle sleeve（4）
With bulge loop（11）Between leave gap（7）, main shaft（1）With connection cover（3）Between be arranged at intervals.
5. internal expanding seal shaft according to claim 1, it is characterised in that：The main shaft（1）It is embedded in shaft-cup（2）It is interior, and
Pass through attachment screw and shaft-cup（2）Connection.
6. internal expanding seal shaft according to claim 2, it is characterised in that：The fix bar（62）With main shaft（1）Between lead to
Cross threaded connection.
7. internal expanding seal shaft according to claim 1, it is characterised in that：The sealing ring（5）It is made up of elastomeric material,
Axle sleeve（4）It is made up of rigid plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721058414.5U CN207161703U (en) | 2017-08-22 | 2017-08-22 | Internal expanding seal shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721058414.5U CN207161703U (en) | 2017-08-22 | 2017-08-22 | Internal expanding seal shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207161703U true CN207161703U (en) | 2018-03-30 |
Family
ID=61718207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721058414.5U Active CN207161703U (en) | 2017-08-22 | 2017-08-22 | Internal expanding seal shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207161703U (en) |
-
2017
- 2017-08-22 CN CN201721058414.5U patent/CN207161703U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |