CN203257829U - Self-tapping self-drilling pull-explosion expansion screw - Google Patents
Self-tapping self-drilling pull-explosion expansion screw Download PDFInfo
- Publication number
- CN203257829U CN203257829U CN 201320235886 CN201320235886U CN203257829U CN 203257829 U CN203257829 U CN 203257829U CN 201320235886 CN201320235886 CN 201320235886 CN 201320235886 U CN201320235886 U CN 201320235886U CN 203257829 U CN203257829 U CN 203257829U
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- China
- Prior art keywords
- setscrew
- screw
- sleeve
- boring
- fried
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- 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 self-tapping self-drilling pull-explosion expansion screw which comprises an expansion screw body and a locking sleeve. The expansion screw body comprises a screw rod, wherein an expansion tube is sleeved outside the screw rod, a gasket, an elastic ring and a hexagon nut are sequentially arranged at the tail end of the expansion tube, the top end of the screw rod is connected with a rotary bit, and a flat position is reserved at the threaded bottom end of the screw rod. The upper portion of the locking sleeve is a sleeve, a first fixing ring is arranged at the top end of the sleeve, and a fixing sleeve, an extensible spring and a second fixing ring are sequentially sleeved at the lower end of the fixing ring. The bit is added at the front end of the screw rod of the expansion screw creatively, the expansion screw is directly drilled and installed in place in one time through connection and clamping of the locking sleeve connected at the tail end of the expansion screw, additional drilling is not required, then the expansion screw is fixed on a wall by screwing the locking sleeve, the self-tapping self-drilling pull-explosion expansion screw is quick in installation and simple in operation, approximate one half of the working amount of an operator is decreased, and almost twice as work efficiency is improved.
Description
Technical field
The utility model relates to five metals and connects workpiece, relates in particular to a kind of self tapping that reduces production costs, increases work efficiency, improves working strength and draws quick-fried setscrew from boring.
Background technique
Chinese patent application number: 200420104870.5, a kind of screw of once attacking nail is disclosed, comprise: body, packing screw, drill bit, wherein this body is a hollow lever, can be for being installed with the packing screw, this packing screw one end is provided with the nose cone that coincide with the body interior conical bore, this cone headed end face is provided with and can supplies the sheathed driver slot of instrument, this packing screw another end is provided with the external screw thread that screws togather with the body interior inner bolt hole, this external screw thread passes outside the body, can establish for the drill bit lock, this body exterior still is provided with the helical double wedge; During operation with the tool drives screw, holed in the precalculated position by drill bit, body can and then be rotated to be imbedded, until the body head is can't lock the time, this screw body namely maintains static, the external screw thread of packing this moment screw still continues to be screwed into the inner bolt hole of body, forces body exterior to produce the metamorphosis that outwards expands, and screw can closely be fixed on the precalculated position.This patent structure is complicated, needs first boring, setscrew could be squeezed in the hole, reduces working efficiency.
And for example the applicant is in the Chinese patent application of first to file number: 201220380088.0, disclose a kind of from brill type setscrew, comprise expansion sleeve, be connected to the king-rod in the expansion sleeve, expansion sleeve comprises body, be arranged on the pipe ring of body rear end, be connected to the drill bit of body front end, body comprises rear body and front inner cone body, the inner of front inner cone body offers the crosswise opening, and the rear portion of front inner cone body offers conical cavity, and the front end of king-rod offers the conehead corresponding with conical cavity, pipe ring offers two symmetrical grooves, and the body rear end is connected with the rotation tube head.
The utility model patent creatively increases drill bit at the screw front end of setscrew, and by the terminal lock sleeve that connects of setscrew disposable with setscrew directly boring be in place, do not need to hole separately, by turning lock sleeve setscrew is fixed on the wall again, quick for installation, simple to operate, reduced the closely workload of half of operator, improved nearly one times working efficiency.
The model utility content
The purpose of this utility model is, overcomes the defects of prior art, provides a kind of self tapping to draw quick-fried setscrew from boring.
For achieving the above object, the technological scheme that provides of the utility model is as follows:
A kind of self tapping draws quick-fried setscrew from boring, and comprises setscrew and lock sleeve, and setscrew comprises a screw rod, the screw rod outer cover is provided with expansion tube, the expansion tube end is disposed with pad, elastic force ring and hexagon nut, and screw tip is connected with roller bit, and flat position is left in the screw flight bottom.
Lock sleeve top is sleeve pipe, and cannula tip is provided with the first retaining ring, and the sleeve pipe lower end is arranged with the second retaining ring, is arranged with successively fixed cover and coil tension spring between the first retaining ring and the second retaining ring.
Be arranged with Quick clamping screw on the sleeve pipe, the Quick clamping screw lower end is provided with reset tension spring.
The lock sleeve bottom connects screens top and inserts inside pipe casing for connecting screens, and sleeve pipe forms open-topped with the Connection Card position, the cavity body structure of bottom sealing, and cannula cavity is provided with screw thread, and the inner chamber bottom offers the locating slot with flat phase contraposition of screw rod.
Sleeve pipe and expansion tube structural similarity.
Roller bit is tapered brill, and the roller bit bottom is provided with hangnail.
Usefulness of the present utility model is, creatively the screw front end at setscrew increases drill bit, and by the connection screens of the terminal lock sleeve that connects of setscrew disposable with setscrew directly boring be in place, do not need to hole separately and hammer into shape and strike, by turning lock sleeve setscrew is fixed on the wall again, quick for installation, simple to operate, reduce the closely workload of half of operator, improved nearly one times working efficiency.
Description of drawings
Fig. 1 is that the utility model self tapping draws quick-fried setscrew first embodiment's schematic representation from boring;
Fig. 2 is that the utility model self tapping draws the described setscrew sectional drawing of quick-fried setscrew from boring;
Fig. 3 is that the utility model self tapping draws quick-fried setscrew first embodiment's lock sleeve sectional drawing from boring;
Fig. 4 is that the utility model self tapping draws the described screw rod schematic representation of quick-fried setscrew from boring;
Fig. 5 is that the utility model self tapping draws the described expansion tube schematic representation of quick-fried setscrew from boring;
Fig. 6 is that the utility model self tapping draws quick-fried setscrew second embodiment's schematic representation from boring.
Embodiment
Be further described with regard to the technical solution of the utility model below in conjunction with accompanying drawing and preferred embodiment.
Extremely shown in Figure 5 such as Fig. 1, a kind of self tapping described in the utility model draws quick-fried setscrew the first embodiment from boring: comprise setscrew 1 and lock sleeve 2, setscrew 1 comprises a screw rod 11, screw rod 11 outer cover are provided with expansion tube 12, expansion tube 12 bottoms are disposed with pad 13, elastic force ring 14 and hexagon nut 15,11 screw tip are connected with roller bit 16, and the screw thread bottom of screw rod 11 is provided with flat position 17.
As mentioned above, fixed cover 212 on the drop-down lock sleeve 2, sleeve pipe 21 mouths of pipe open, with setscrew 1 terminal the insertion in the sleeve pipe 21, discharge fixed cover 212 and tightly lock at the effect of the coil tension spring 213 elastic force sleeve pipe 21 of ordering, to connect screens 22 and be inserted in percussion drill, electric drill or the electric hammer, start, and can directly setscrew 1 be pierced body of wall; Take off percussion drill, electric drill or electric hammer, on the other hand with the fixed cover 212 on the lock sleeve 2 toward pulling back, take off simultaneously lock sleeve 2 and percussion drill, then turn hexagon nut 15 on the setscrew 1 with spanner, whole setscrew 1 is tightly embedded within the walls.
As shown in Figure 6, a kind of self tapping described in the utility model draws quick-fried setscrew the second embodiment from boring: fixed cover 212, coil tension spring 213 sheathed in the first retaining ring 211 in lock sleeve 2 upper sleeve 21, the second retaining ring 214 and the sleeve pipe 21 are replaced by Quick clamping screw 217, Quick clamping screw 217 lower ends are provided with reset tension spring 218, sleeve pipe 21 screw sections are fixing on one side, and another side can be movable along with turning of Quick clamping screw 217.More than, Quick clamping screw 217 inside are the eccentric circle (not shown), control the opening and closing of sleeve pipe 21 by the eccentric shaft cambered surface size variation of Quick clamping screw 217 eccentric circles.
Above-described only is principle of the present utility model and preferred embodiment.Should be pointed out that to those skilled in the art, under the prerequisite that does not break away from the utility model principle, can also make some modification and improvement, also should be considered as belonging to protection domain of the present utility model.
Claims (6)
1. a self tapping draws quick-fried setscrew from boring, comprise setscrew and lock sleeve, setscrew comprises a screw rod, the screw rod outer cover is provided with expansion tube, the expansion tube end is disposed with pad, elastic force ring and hexagon nut, it is characterized in that: described screw tip is connected with roller bit, and flat position is left in the screw flight bottom.
2. self tapping according to claim 1 draws quick-fried setscrew from boring, it is characterized in that: described lock sleeve top is sleeve pipe, cannula tip is provided with the first retaining ring, and the sleeve pipe lower end is arranged with the second retaining ring, is arranged with successively fixed cover and coil tension spring between the first retaining ring and the second retaining ring.
3. self tapping according to claim 2 draws quick-fried setscrew from boring, and it is characterized in that: be provided with Quick clamping screw at casing pipe sleeve, the Quick clamping screw lower end is provided with reset tension spring.
4. self tapping according to claim 1 draws quick-fried setscrew from boring, it is characterized in that: described lock sleeve bottom is for connecting screens, connect screens top and insert inside pipe casing, sleeve pipe and Connection Card position form open-topped, the cavity body structure of bottom sealing, cannula cavity is provided with screw thread, and the inner chamber bottom offers the locating slot with the flat position phase contraposition of screw rod.
5. self tapping according to claim 1 and 2 draws quick-fried setscrew from boring, and it is characterized in that: described sleeve pipe and expansion tube structural similarity.
6. self tapping according to claim 1 draws quick-fried setscrew from boring, and it is characterized in that: described roller bit is tapered brill, and the drill bit bottom is provided with hangnail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320235886 CN203257829U (en) | 2013-05-03 | 2013-05-03 | Self-tapping self-drilling pull-explosion expansion screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320235886 CN203257829U (en) | 2013-05-03 | 2013-05-03 | Self-tapping self-drilling pull-explosion expansion screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203257829U true CN203257829U (en) | 2013-10-30 |
Family
ID=49470398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320235886 Expired - Fee Related CN203257829U (en) | 2013-05-03 | 2013-05-03 | Self-tapping self-drilling pull-explosion expansion screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203257829U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104295074A (en) * | 2014-08-12 | 2015-01-21 | 张宏朝 | Binding assembly for wall heat insulating materials |
| CN107606525A (en) * | 2017-07-28 | 2018-01-19 | 深圳市勤励创电子科技有限公司 | A kind of high LED of installation reliability |
-
2013
- 2013-05-03 CN CN 201320235886 patent/CN203257829U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104295074A (en) * | 2014-08-12 | 2015-01-21 | 张宏朝 | Binding assembly for wall heat insulating materials |
| CN107606525A (en) * | 2017-07-28 | 2018-01-19 | 深圳市勤励创电子科技有限公司 | A kind of high LED of installation reliability |
| CN107606525B (en) * | 2017-07-28 | 2019-12-31 | 深圳市勤励创电子科技有限公司 | LED lamp that installation reliability is high |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131030 Termination date: 20170503 |