CN201407266Y - Clamping type expansion screw - Google Patents
Clamping type expansion screw Download PDFInfo
- Publication number
- CN201407266Y CN201407266Y CN2009201557271U CN200920155727U CN201407266Y CN 201407266 Y CN201407266 Y CN 201407266Y CN 2009201557271 U CN2009201557271 U CN 2009201557271U CN 200920155727 U CN200920155727 U CN 200920155727U CN 201407266 Y CN201407266 Y CN 201407266Y
- Authority
- CN
- China
- Prior art keywords
- clamping type
- cap plate
- sleeve
- screw rod
- expansion 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
Links
- 238000012856 packing Methods 0.000 claims description 6
- 239000011464 hollow brick Substances 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
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- Clamps And Clips (AREA)
Abstract
The utility model provides a clamping type expansion screw to change the holding mode of the expanding fixation of the prior expansion screw. The clamping type expansion screw comprises a screw rod, an expansion sleeve, a nut and a gasket. A plurality of equal-division bar-shaped notches areformed at the front end of the expansion sleeve, a cap plate is arranged at one end of the screw rod, and ascrew rod body extends to the cap plate through a wedge-shaped guiding surface. The clamping type expansion screw effectively improves the fixation strength by pressing and stretching the sleeve wallof the notch end of the expansion sleeve at maximum to attach the sleeve wall to the wall body at the highest level, therefore, the fixation strength is effectively improved, and in particular when being applied to a hollow brick wall body, the index of the fixation strength of the clamping type expansion screw is much more higher.
Description
Technical field
The utility model relates to the improvement structure of setscrew.
Background technique
Setscrew includes screw rod, expansion sleeve, nuts and washers etc., and the taper spiral shell head by screw rod radially supports the expansion expansion sleeve, by extruding force this setscrew and body of wall swelling is fixed, as shown in Figure 1.Because there is the low technical problem of expansion coefficient in it, the frequent appearance in operation back is tightened in actual expansion can produce the loosening of suitable amplitude, and do not reach be locked the position effect, particularly be commonly the frame construction main body now, body of wall is hollow brick wall, because the hollow brick material is comparatively loose, its expansion fixedly dynamics is more low, more can't reach the application target of fixedly controlling.
Summary of the invention
Goal of the invention of the present utility model is to change the structural type of existing setscrew with simple expansion fashion, provides a kind of mainly fixedly to control the fixing clamping type setscrew of stable, the reliable body of wall of mode.The clamping type setscrew technological scheme that the utility model provides, its major technique content is: a kind of clamping type setscrew, it comprises screw rod, expansion sleeve, nuts and washers, the expansion sleeve front end is provided with some five equilibrium bar shaped flutings, screw rod one end is provided with the cap plate, and the screw rod body of rod extends to the cap plate with the wedge shape guiding face.
Description of drawings
Fig. 1 is the structural representation of existing setscrew
Fig. 2 and Fig. 7 are respectively two example structure schematic representation of this clamping type setscrew
Fig. 3 is the three-dimensional structure diagram that this clamping type setscrew is fixed in body of wall
Fig. 4, Fig. 5 and Fig. 6 are respectively that this clamping type setscrew is each the process status figure that is held in body of wall.
Embodiment
The clamping type setscrew that the utility model proposes, its structure constitutes shown in each accompanying drawing, comprise screw rod 7, expansion sleeve 4, nut 6 and packing ring 5, in structure shown in Figure 7 constitutes, also be provided with elastic washer 9 between nut 6 and the packing ring 5, expansion sleeve 4 front ends are provided with the bar shaped fluting 3 of some five equilibriums, one end of screw rod 7 is provided with cap plate 1, in example structure shown in Figure 2, its cap plate 1 is the circular cap plate, and screw rod 7 bodies of rod extend to cap plate 1 bottom surface with arc expansion guiding face 8 to cap plate 1.Embodiment as shown in Figure 7, screw rod 7 bodies of rod to cap plate 1 with conical expansion guiding face 8 ' extend to cap plate 1 bottom surface.
In this structure, its arc guiding face 8 or taper guiding face 8 ' may extend to cap plate 1 lower end surface, promptly shown in structural drawing.
As Fig. 4, Fig. 5, Fig. 6 and shown in Figure 3, after the screw rod 7 that has an expansion sleeve 4 was inserted the body of wall hole, its outer end suit packing ring 5, spiral successively cooperated upper cap nut 6.It is approaching to the cap plate 1 of screw rod 7 that nut 6 promotes expansion sleeve 4 when screwing in, the bar shaped of expansion sleeve 4 fluting end begin to act on arc guiding face 8 or taper guiding face 8 ' on, under the external force of nut 6 promotes, the barrel of expansion sleeve 4 fluting ends is gradually along arc guiding face 8 or taper guiding face 8 ' abduction, then begin laterally to turn during to cap plate 1 bottom surface, as shown in Figure 5, nut 6 continues rotation to be promoted down, under the acting in conjunction of cap plate 1 and surface of wall, the barrel of expansion sleeve 4 along fluting 3 separate fully, the generate petal-shaped, with packing ring 5 fastening clamps in the body of wall both sides.This clamping type setscrew also can be applicable to fixing within the walls, and promptly under the external force effect of nut 6, expansion sleeve 4 fluting end abductions also laterally turn in the insertion body of wall, and body of wall is gone in final riveting fully, fixes with body of wall.
In the present embodiment structure, for the fluting end that makes expansion sleeve 4 is easier to launch under the turn of nut 6, the fluting end of expansion sleeve 4 is provided with one section flare 2.
The clamping type setscrew that the utility model provides, finally be along the spiral of screw rod 7 expansion sleeve 4 fluting end barrels to be launched as far as possible by nut 6, itself and body of wall are farthest adhered to, adhere to fully with body of wall under the nut at two ends and the effect of cap plate with packing ring and to be fixed as one, its constant intensity improves greatly, especially be applied to fixing of hollow brick wall, its constant intensity index is then more superior.
Claims (4)
1, a kind of clamping type setscrew, it comprises screw rod (7), expansion sleeve (4), nut (6) and packing ring (5), the expansion sleeve front end is provided with some five equilibrium bar shaped flutings (3), it is characterized in that screw rod one end is provided with cap plate (1), and the screw rod body of rod extends to the cap plate with the wedge shape guiding face.
2, clamping type setscrew according to claim 1 is characterized in that described wedge shape guiding face is arc guiding face (8).
3,, clamping type setscrew according to claim 1, it is characterized in that described wedge shape guiding face is taper guiding face (8 ').
4, clamping type setscrew according to claim 1 is characterized in that the fluting end of expansion sleeve (4) is provided with one section flare (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201557271U CN201407266Y (en) | 2009-03-03 | 2009-06-05 | Clamping type expansion screw |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920011160 | 2009-03-03 | ||
| CN200920011160.0 | 2009-03-03 | ||
| CN2009201557271U CN201407266Y (en) | 2009-03-03 | 2009-06-05 | Clamping type expansion screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201407266Y true CN201407266Y (en) | 2010-02-17 |
Family
ID=41678200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201557271U Expired - Fee Related CN201407266Y (en) | 2009-03-03 | 2009-06-05 | Clamping type expansion screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201407266Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103935830A (en) * | 2014-05-09 | 2014-07-23 | 李雪明 | Winding machine spindle clamping device |
| CN105790190A (en) * | 2016-05-23 | 2016-07-20 | 国网辽宁省电力有限公司盘锦供电公司 | Expansion spring type automatic aluminum alloy fixing device |
| CN107269649A (en) * | 2017-07-18 | 2017-10-20 | 钱江重工有限公司 | A kind of jointing between steel section of jurisdiction |
| CN108731137A (en) * | 2018-07-30 | 2018-11-02 | 奥克斯空调股份有限公司 | A kind of chassis structure and air-conditioner outdoor unit and air conditioner |
| CN108731132A (en) * | 2018-07-30 | 2018-11-02 | 奥克斯空调股份有限公司 | A kind of pump foot bolt and air-conditioner outdoor unit and air conditioner |
| CN113863606A (en) * | 2021-07-07 | 2021-12-31 | 广州荷力胜蜂窝材料股份有限公司 | Integrated wallboard dry hanging system and installation method thereof |
-
2009
- 2009-06-05 CN CN2009201557271U patent/CN201407266Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103935830A (en) * | 2014-05-09 | 2014-07-23 | 李雪明 | Winding machine spindle clamping device |
| CN105790190A (en) * | 2016-05-23 | 2016-07-20 | 国网辽宁省电力有限公司盘锦供电公司 | Expansion spring type automatic aluminum alloy fixing device |
| CN107269649A (en) * | 2017-07-18 | 2017-10-20 | 钱江重工有限公司 | A kind of jointing between steel section of jurisdiction |
| CN108731137A (en) * | 2018-07-30 | 2018-11-02 | 奥克斯空调股份有限公司 | A kind of chassis structure and air-conditioner outdoor unit and air conditioner |
| CN108731132A (en) * | 2018-07-30 | 2018-11-02 | 奥克斯空调股份有限公司 | A kind of pump foot bolt and air-conditioner outdoor unit and air conditioner |
| CN108731137B (en) * | 2018-07-30 | 2023-10-20 | 奥克斯空调股份有限公司 | Chassis structure, air conditioner outdoor unit and air conditioner |
| CN108731132B (en) * | 2018-07-30 | 2023-10-20 | 奥克斯空调股份有限公司 | Pump foot bolt and air condensing units and air conditioner |
| CN113863606A (en) * | 2021-07-07 | 2021-12-31 | 广州荷力胜蜂窝材料股份有限公司 | Integrated wallboard dry hanging system and installation 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: 20100217 Termination date: 20100605 |