CN201320728Y - Positioning tightening device for spiral sleeve - Google Patents
Positioning tightening device for spiral sleeve Download PDFInfo
- Publication number
- CN201320728Y CN201320728Y CNU2008202281601U CN200820228160U CN201320728Y CN 201320728 Y CN201320728 Y CN 201320728Y CN U2008202281601 U CNU2008202281601 U CN U2008202281601U CN 200820228160 U CN200820228160 U CN 200820228160U CN 201320728 Y CN201320728 Y CN 201320728Y
- Authority
- CN
- China
- Prior art keywords
- ball
- screw shell
- tie
- strut
- abutment sleeve
- 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 relates to a positioning tightening device for a spiral sleeve, which comprises a pull and press rod with a ball profile on the surface; the pull and press rod penetrates in an axial core hole of a positioning sleeve; a ball is arranged on the positioning sleeve; and the inner spherical surface of the ball is attached to the ball profile of the pull and press rod. Using the device, the spiral sleeve can be tightened conveniently before working, and separated from the positioning sleeve in a pulling method after working. The device solves the time and labor wasting problem of tightening a plurality of embedded spiral sleeves one by one, and improves the working efficiency.
Description
Technical field
The utility model relates to a kind of fastener, specifically a kind of screw shell location tense-lax device.
Background technology
Solidify after coagulation at cast flow-like object and become in the process of solid shape, according to designing requirement or use needs, need be in solidifying body pre-buried a plurality of screw shells.Screw shell has requirements such as relative size requirement and dimensional accuracy, form and position tolerance.Freely putting or under the state of not tightening, pre-buried screw shell is difficult for guaranteeing with respect to the dimensional accuracy of solidifying body and the requirement of form and position tolerance, therefore, need carry out one by one the operation of tightening to incidental device for screwing up on each screw shell.This operation was both time-consuming, again effort.
The utility model content
The purpose of this utility model just provides a kind of screw shell location tense-lax device that can implement synchronous tense-lax positioning action to pre-buried screw shell, tightens the problem that wastes time and energy that operation exists one by one to solve a plurality of pre-buried screw shells.
The utility model is achieved in that a kind of screw shell location tense-lax device, the strut and tie that the surface has the ball profile is applied in the axial core hole of abutment sleeve, on described abutment sleeve ball is housed, the inboard sphere of described ball abuts on the ball profile of described strut and tie.
Abutment sleeve in the utility model penetrates in the screw shell, and the inner chamber of its profile and screw shell is identical substantially.When strut and tie pressed down, the ball on the abutment sleeve was subjected to the ball profile compressing on strut and tie surface and outwards swells, ball swell the double-screw bolt that part is equivalent to tighten or the thread form of screw in screw shell, screw shell is fixed on abutment sleeve.When drawing on the strut and tie, the ball on the abutment sleeve gets loose and returns, and is in a kind of loosening state, loses the tightening control action to screw shell, also can make screw shell take off smoothly from sleeve thus.Use the utility model, screw shell is conveniently tightened before work, after work, relied on the mode and the abutment sleeve of drawing to be separated.Once backing out simultaneously of a plurality of screw shells realized by the connecting rod rotating shaft mechanism.The exposed parts of connecting rod rotating shaft mechanism has control crank and stopping means, carry out circular motion by control crank, realize the rotation of connecting rod rotating shaft mechanism, the rotation of rotating shaft converts moving up and down of connecting rod to, the moving up and down of connecting rod can be controlled swelling of ball or unclamp, realize that thus this device to the tightening of screw shell with unclamp control, has solved the problem that wastes time and energy that a plurality of pre-buried screw shells are tightened operation one by one, improved operating efficiency.
Description of drawings
Fig. 1 is the structural representation of the utility model when strut and tie presses down.
Fig. 2 is that the A-A of Fig. 1 is to profile.
Fig. 3 is the structural representation of the utility model when drawing on strut and tie.
Fig. 4 is that the B-B of Fig. 3 is to profile.
The specific embodiment
As shown in Figure 1, strut and tie 1 cross-under is in the axial core hole of abutment sleeve 2.Be shaped on the ball profile on the surface of strut and tie 1, ball 4 is housed on abutment sleeve 2, the inboard sphere of ball 4 abuts on the ball profile of strut and tie 1.Ball 4 has at least three, along the circumference uniform distribution of abutment sleeve 2, and is to be provided with on a helix of abutment sleeve 2 inwalls, and this helix is consistent with the generating line in the screw shell.This just makes that the outer margin contour line of ball 4 after swelling is consistent with the generating line of screw shell, with this " spiral thread form " as the tightening screw shell.
Strut and tie 1 gap is assemblied in the core hole of abutment sleeve 2.Strut and tie moves downward (Fig. 1), three balls 4 that ball profile on the strut and tie forces abutment sleeve 2 upper edge helixes to distribute swell (Fig. 2) laterally, with the internal thread snap-in that is socketed on the outside screw shell, realize the tightening of screw shell and abutment sleeve 2.Strut and tie moves upward (Fig. 3), and ball profile on the strut and tie and ball 4 break away from, and the power that swells is eliminated, and ball 4 is in loosening state, loses the effect (Fig. 4) that spiral is tightened, and screw shell just can be taken off (rather than backing out) from abutment sleeve 2.
As shown in Figure 1, be provided with connecting rod rotating shaft mechanism pin joint 3 in the lower end of strut and tie 1,, realize that this device is to the synchronous tightening of a plurality of screw shells with unclamp control in order to the articulated linkage rotating shaft mechanism.
Claims (3)
1, a kind of screw shell is located the tense-lax device, it is characterized in that the surface has in the axial core hole that the strut and tie of ball profile (1) is applied in abutment sleeve (2), ball (4) is housed on described abutment sleeve (2), and the inboard sphere of described ball (4) abuts on the ball profile of described strut and tie (1).
2, screw shell according to claim 1 is located the tense-lax device, it is characterized in that described ball (4) has at least three, along the circumference uniform distribution of described abutment sleeve (2), and is to be provided with on a helix of abutment sleeve (2) inwall.
3, screw shell according to claim 1 is located the tense-lax device, it is characterized in that being provided with connecting rod rotating shaft mechanism pin joint (3) in the lower end of described strut and tie (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202281601U CN201320728Y (en) | 2008-12-15 | 2008-12-15 | Positioning tightening device for spiral sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202281601U CN201320728Y (en) | 2008-12-15 | 2008-12-15 | Positioning tightening device for spiral sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201320728Y true CN201320728Y (en) | 2009-10-07 |
Family
ID=41158116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202281601U Expired - Fee Related CN201320728Y (en) | 2008-12-15 | 2008-12-15 | Positioning tightening device for spiral sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201320728Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105735172A (en) * | 2016-02-25 | 2016-07-06 | 高月锋 | Municipal road guardrail and construction method thereof |
-
2008
- 2008-12-15 CN CNU2008202281601U patent/CN201320728Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105735172A (en) * | 2016-02-25 | 2016-07-06 | 高月锋 | Municipal road guardrail and construction method thereof |
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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: 20091007 Termination date: 20121215 |