CN109973712A - A kind of pumping expanding seal plug - Google Patents
A kind of pumping expanding seal plug Download PDFInfo
- Publication number
- CN109973712A CN109973712A CN201711441541.8A CN201711441541A CN109973712A CN 109973712 A CN109973712 A CN 109973712A CN 201711441541 A CN201711441541 A CN 201711441541A CN 109973712 A CN109973712 A CN 109973712A
- Authority
- CN
- China
- Prior art keywords
- link block
- cylinder
- sleeve
- diameter
- shaft shoulder
- Prior art date
- 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.)
- Pending
Links
Classifications
-
- 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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K41/00—Spindle sealings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The invention discloses a kind of pumping expanding seal plugs, including mandrel and sleeve, mandrel is cylindrical member, mandrel includes cylinder and the shaft shoulder, cylinder one end is provided with sawtooth, the other end of cylinder is connect by connecting component with the shaft shoulder, the diameter of the shaft shoulder is greater than the diameter of cylinder, cylinder, the shaft shoulder and connecting component are integrally formed, sleeve is cylindrical structure made by blunt aluminium or stainless iron material, the through-hole to match with cylinder is provided on sleeve, bush outer sleeve is covered with pointed tooth in the periphery of connecting component, the outer peripheral surface of sleeve.The pointed tooth of sleeve periphery is pressed into opposite soft technique Porous materials or sleeve itself is squeezed into the gap of opposite high rigidity fabrication hole rough surface, is reached and is engaged sealing with workpiece.
Description
Technical field
The present invention relates to a kind of seal fittings, more particularly, to a kind of pumping expanding seal plug.
Background technique
Some seal fittings be will use on engine, sliding block and hydraulic device to carry out oil sealing.And engine, sliding block
And hydraulic device often works in the environment of high temperature and pressure, therefore matched seal plug is required in high temperature
Degree, high pressure environment in retention property stabilization.
Now common plug has screwed plug and ball stifled in the market.Screwed plug is a kind of threaded plug of head setting,
In use, needing to be installed by rotation plug, the efficiency of installation is relatively slow, inconvenient for use.The stifled installation of ball then compared with
It to be convenient, but is mostly rubber material since ball is stifled, and be sealed by deformation, there is one in the environment of high temperature and pressure
Fixed security risk.
Summary of the invention
A kind of technical problem to be solved by the invention is to provide security performances pumping expanding seal plug higher, easy for installation
Head.
The technical scheme of the invention to solve the technical problem is: a kind of pumping expanding seal plug, including mandrel
With sleeve, the mandrel is cylindrical member, and mandrel includes cylinder and the shaft shoulder, and described cylinder one end is provided with sawtooth, column
The other end of body is connect by connecting component with the shaft shoulder, and the diameter of the shaft shoulder is greater than the diameter of the cylinder,
Cylinder, the shaft shoulder and the connecting component is integrally formed, and the sleeve is cylinder made by blunt aluminium or stainless iron material
Structure, is provided with the through-hole to match with the cylinder on sleeve, and the bush outer sleeve is described in the periphery of connecting component
The outer peripheral surface of sleeve be covered with pointed tooth.
The connecting component includes the first link block, the second link block and third link block, first link block
The end A connect with the shaft shoulder, the end B of the third link block is connect with cylinder, second link block be located at first connection
Between block and third link block, the end A of second link block is connect with the end B of the first link block, second connection
The end B of block is connect with the end A of third link block.
The diameter of second link block is equal with the diameter of the cylinder, and the diameter of the third link block is big
In one predetermined amount of diameter of the second link block.So that sleeve is easily mounted on the periphery of connecting component.
The diameter at the end A of first link block is greater than one predetermined amount of diameter at the first end link block B, and described the
One link block is seamlessly transitted from the end A to the end B.First link block to seamlessly transit between the shaft shoulder and the second link block.
First annular groove is provided between first link block and the second link block, the third link block
The end B is provided with chamfering gentle transition to the cylinder.The setting of chamfering is so that can be smooth between third link block and cylinder
Transition.
The outer surface of the shaft shoulder is provided with multiple second annular grooves.Increase the friction of shaft shoulder outer surface.
For the connecting component at cylindrical structure, it is recessed that the periphery of the connecting component is provided with multiple third annulars
Slot, the bush outer sleeve is in the periphery of third annular groove.So that sleeve is easily mounted on the periphery of connecting component.
Compared with the prior art, the advantages of the present invention are as follows including mandrel and sleeve, sleeve is by blunt aluminium or stainless iron material
It is made, and mandrel can be made of high-temperature and high-presure resistent material, safety coefficient is higher.The periphery of this outer sleeve is covered with pointed tooth and outer
It covers in the periphery of connecting component.During installation, apply longitudinal pulling force to mandrel, while sleeve is provided instead using specific purpose tool
To support force, it is radially expanded sleeve generation, the pointed tooth of sleeve periphery is pressed into opposite soft technique Porous materials or sleeve sheet
Body is squeezed into the gap of opposite high rigidity fabrication hole rough surface, reaches and is engaged sealing with workpiece.Sealing effect is preferable, together
When install it is also more convenient.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the embodiment of the present invention one；
Fig. 2 is the structural schematic diagram of the embodiment of the present invention two.
Specific embodiment
The present invention will be described in further detail below with reference to the embodiments of the drawings.
A kind of pumping expanding seal plug, including mandrel 1 and sleeve 2 as shown in Figure 1: of embodiment one, mandrel 1 are cylindrical structure
Part, mandrel 1 include cylinder 3 and the shaft shoulder 4, and 3 one end of cylinder is provided with sawtooth 5, and the other end of cylinder 3 passes through connecting component 6 and axis
Shoulder 4 connects, and the diameter of the shaft shoulder 4 is greater than the diameter of cylinder 3, and cylinder 3, the shaft shoulder 4 and connecting component 6 are integrally formed, and sleeve 2 is blunt aluminium
Or cylindrical structure made by stainless iron material, the through-hole to match with cylinder 3 is provided on sleeve 2,2 housing of sleeve is even
The outer peripheral surface of the periphery of relay part 6, sleeve 2 is covered with pointed tooth.
Connecting component 6 includes the first link block 61, the second link block 62 and third link block 63, the A of the first link block 61
End is connect with the shaft shoulder 4, and the end B of third link block 63 is connect with cylinder 3, and the second link block 62 is located at the first link block 61 and third
Between link block 63, the end A of the second link block 62 is connect with the end B of the first link block 61, the end B of the second link block 62 and third
The end A of link block 63 connects.
The diameter of second link block 62 is equal with the diameter of cylinder 3, and the diameter of third link block 63 is greater than the second link block
62 one predetermined amount of diameter.The diameter at the end A of the first link block 62 be greater than the first link block 62 diameter one of the end B is predetermined
Amount, the first link block 61 are seamlessly transitted from the end A to the end B.The first ring is provided between first link block 61 and the second link block 62
Connected in star, the end B of third link block 63 are provided with chamfering gentle transition to cylinder 3.The outer surface of the shaft shoulder 4 is provided with multiple second
Annular groove.
As shown in Figure 2: the other parts of embodiment two are equal with embodiment one, the difference is that connecting component 6 at
Cylindrical structure, the periphery of connecting component 6 are provided with multiple third annular grooves, and 2 housing of sleeve is in the outer of third annular groove
Week.
In use, sleeve 2 is screwed on mandrel 1 first, mandrel 1 reserves two teeth when screwing in sleeve 2.Mandrel 1 is screwed into again
Onto the valve seat of connection, sleeve 2 is tightened with tool.The sleeve 2 for tightening rear blunt aluminium or stainless iron material can be by the sawtooth of mandrel 1
5 embrace to form sealing inflexibly, while valve seat also will form the sealing surface of a plane with 2 plane of sleeve, play two way seal
Effect.
Claims (7)
1. a kind of pumping expanding seal plug, it is characterised in that including mandrel and sleeve, the mandrel is cylindrical member, mandrel
Including cylinder and the shaft shoulder, described cylinder one end is provided with sawtooth, and the other end of cylinder passes through connecting component and the shaft shoulder
Connection, the diameter of the shaft shoulder are greater than the diameter of the cylinder, and the cylinder, the shaft shoulder and connecting component are integrally formed,
The sleeve is cylindrical structure made by blunt aluminium or stainless iron material, is provided on sleeve and matches with the cylinder
Through-hole, the bush outer sleeve is covered with pointed tooth in the periphery of connecting component, the outer peripheral surface of the sleeve.
2. a kind of pumping expanding seal plug according to claim 1, it is characterised in that the connecting component includes first
The end A of link block, the second link block and third link block, first link block is connect with the shaft shoulder, the third connection
The end B of block is connect with cylinder, and between the first link block and third link block, described second connects second link block
The end A for connecing block is connect with the end B of the first link block, and the end B of second link block is connect with the end A of third link block.
3. a kind of pumping expanding seal plug according to claim 2, it is characterised in that the diameter of second link block
Equal with the diameter of the cylinder, the diameter of the third link block is greater than one predetermined amount of diameter of the second link block.
4. a kind of pumping expanding seal plug according to claim 2, it is characterised in that the end A of first link block
Diameter is greater than one predetermined amount of diameter at the first end link block B, and first link block is seamlessly transitted from the end A to the end B.
5. a kind of pumping expanding seal plug according to claim 2, it is characterised in that first link block and second
It is provided with first annular groove between link block, the end B of the third link block is provided with chamfering gentle transition to described
Cylinder.
6. a kind of pumping expanding seal plug according to claim 2, it is characterised in that the outer surface of the shaft shoulder is arranged
There are multiple second annular grooves.
7. a kind of pumping expanding seal plug according to claim 1, it is characterised in that the connecting component is at cylinder
Structure, the periphery of the connecting component are provided with multiple third annular grooves, and the bush outer sleeve is in third annular groove
Periphery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711441541.8A CN109973712A (en) | 2017-12-27 | 2017-12-27 | A kind of pumping expanding seal plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711441541.8A CN109973712A (en) | 2017-12-27 | 2017-12-27 | A kind of pumping expanding seal plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109973712A true CN109973712A (en) | 2019-07-05 |
Family
ID=67072172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711441541.8A Pending CN109973712A (en) | 2017-12-27 | 2017-12-27 | A kind of pumping expanding seal plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109973712A (en) |
-
2017
- 2017-12-27 CN CN201711441541.8A patent/CN109973712A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190705 |