CN2718299Y - Push-expanding inner plug - Google Patents
Push-expanding inner plug Download PDFInfo
- Publication number
- CN2718299Y CN2718299Y CN 200420073929 CN200420073929U CN2718299Y CN 2718299 Y CN2718299 Y CN 2718299Y CN 200420073929 CN200420073929 CN 200420073929 CN 200420073929 U CN200420073929 U CN 200420073929U CN 2718299 Y CN2718299 Y CN 2718299Y
- Authority
- CN
- China
- Prior art keywords
- plug
- push rod
- push
- wall
- expansion block
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a push-expanding inner plug, which is thin-walled hollow cylinder; the upper part of the plug body is step; at least two deforming channels are arranged on the plug wall along the axial direction; a push rod is arranged in the plug body. A push-expanding block which can make radial direction deformation of the plug wall be generated when the push rod is axial displacement is connected between the push rod and the plug wall. The product has the advantages of novel structure, easy installation, larger application range of internal diameter, etc. and is widely suitable for matching and connecting of the internal diameter of the object in the field of domestic article, medical recovery instrument, etc.
Description
Technical field
The utility model relates to and is used for the member that the object internal diameter cooperates, particularly a kind of interior plug.
Background technique
At present, the assembling that interior plug is widely used in the object internal diameter connects, especially the socket of tubing, hollow pipe fitting, but the ubiquitous problem of interior plug is: the plug wall of object internal diameter and interior plug is an interference fit, will be with assembling or the dismounting that just can finish the two very energetically, and the size of internal diameter cooperate must be very accurate with the size of interior plug, the too small meeting in gap causes encapsulation not firm, excesssive gap then is difficult to mounting or dismounting, labor intensive and material resources.
The model utility content
The purpose of this utility model is in order to overcome the deficiencies in the prior art part, proposes plug in a kind of push-expanding type, avoids the trouble and the difficulty of internal diameter assembling, and good stability, is suitable for and cooperates the internal diameter size scope big.
The purpose of this utility model is achieved by the following technical solution: plug in a kind of push-expanding type, be the thin-walled hollow tubular, cock body top is step, axially have at least two distortion grooves on the plug wall, be provided with a push rod in the cock body, being connected with between push rod and plug wall can be at the expansion block of push rod axial displacement plug in season wall radial deformation.Further, the ground expansion block contacts with the line that push rod, plug wall form disjunctor with certain inclination angle.And the number of expansion block can be a plurality of, and corresponding with distortion groove number on the plug wall, and expansion block one end contacts with push rod termination disjunctor, and the other end then contacts with the two plug wall disjunctors that are out of shape between the grooves.Such structure, the plug wall is deformed the groove break into portions, every part of plug wall all has expansion block to be connected with it, and all expansion blocks all are connected with push rod, when pushing hard push rod, or when directly promoting expansion block, expansion block is radially propped up, thereby make the plug wall by distending radially, make it and the cooperating of internal diameter of object reach interference fit.Otherwise, need only expansion block be forgotten about it again with push rod toward post-tensioning, plug wall reinstatement attitude, interference fit disappears.
Advantages such as this structure is to drive expansion block by push rod to make plug wall distortion distending, has novel structure, and easy to assembly, adaptive internal diameter size scope is big.
Description of drawings
Fig. 1 is a schematic perspective view of the present utility model;
Fig. 2 is a section of structure of the present utility model;
Fig. 3 is the left view of Fig. 2;
Fig. 4 is the structural representation after the distortion;
Fig. 5 is the schematic representation that cooperates with body.
Embodiment
Referring to Fig. 1-Fig. 5, the interior plug of present embodiment is made of step 1, plug wall 2, expansion block 3, push rod 4 etc.Four axial distortion grooves 21 will be filled in wall 2 and be divided into four parts, equal disjunctor line contact has an expansion block 3 on every part of plug wall 2, the other end of four expansion blocks 3 all contacts with push rod 4 termination disjunctor lines, during installation, interior plug is packed in body 5 internal diameters, axially push hard push rod 4 then, push rod 4 drives expansion blocks 3 and radially props up, make to have the plug wall 2 stressed quilts distending radially that is out of shape groove 21, thereby make it and the cooperating of internal diameter of body 5 reach interference fit; In the time will dismantling, need only on push rod 4, pull at slightly, or oppositely push hard slightly at their back side, can make expansion block 3 forget about it again, tilt, 2 distortion of plug wall disappear, restore, thus plug easily takes out from body 5 in making.
In addition to the implementation, can be according to the internal diameter geometrical shape of different objects, the plug wall is divided into two, three parts or many parts, produce difform in plug, other is equal to the protection domain that roughly the same structure all should belong to this patent, repeats no more here.
Claims (3)
1, plug in a kind of push-expanding type, be the thin-walled hollow tubular, cock body top is step, axially has at least two distortion grooves on the plug wall, it is characterized in that: be provided with a push rod in the cock body, being connected with between push rod and plug wall can be at the expansion block of push rod axial displacement plug in season wall radial deformation.
2, interior plug according to claim 1 is characterized in that expansion block contacts with the line that push rod, plug wall form disjunctor with certain inclination angle.
3, interior plug according to claim 2 is characterized in that the number of expansion block can be a plurality of, and corresponding with distortion groove number on the plug wall, and expansion block one end contacts with push rod termination disjunctor, and the other end then contacts with the two plug wall disjunctors that are out of shape between the grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420073929 CN2718299Y (en) | 2004-06-25 | 2004-06-25 | Push-expanding inner plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420073929 CN2718299Y (en) | 2004-06-25 | 2004-06-25 | Push-expanding inner plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2718299Y true CN2718299Y (en) | 2005-08-17 |
Family
ID=34893840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420073929 Expired - Fee Related CN2718299Y (en) | 2004-06-25 | 2004-06-25 | Push-expanding inner plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2718299Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105156421A (en) * | 2015-07-10 | 2015-12-16 | 北京中电兴发科技有限公司 | Multi-section telescopic pipe device |
-
2004
- 2004-06-25 CN CN 200420073929 patent/CN2718299Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105156421A (en) * | 2015-07-10 | 2015-12-16 | 北京中电兴发科技有限公司 | Multi-section telescopic pipe device |
| CN105156421B (en) * | 2015-07-10 | 2018-01-12 | 北京中电兴发科技有限公司 | A kind of Multi-section telescopic casing bit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050817 Termination date: 20120625 |