CN202900879U - Expansion screw - Google Patents
Expansion screw Download PDFInfo
- Publication number
- CN202900879U CN202900879U CN 201220241777 CN201220241777U CN202900879U CN 202900879 U CN202900879 U CN 202900879U CN 201220241777 CN201220241777 CN 201220241777 CN 201220241777 U CN201220241777 U CN 201220241777U CN 202900879 U CN202900879 U CN 202900879U
- Authority
- CN
- China
- Prior art keywords
- screw
- nut
- screw rod
- expansion screw
- blast cover
- 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 provides an expansion screw which comprises a nut, a screw and an explosion sleeve. The nut is placed at the top end of the screw; the periphery of the lower portion of the screw is provided with outer threads; a plurality of slivers are placed at the upper end of the explosion sleeve; and the explosion sleeve is sleeved on the lower portion of the screw. The expansion screw penetrates through objects to be placed and is directly put in a hole, the screw is screwed until the explosion sleeve explodes, and the process that the objects to be placed is fixed through a disposable operation, and therefore the problem that the objects to be fixed are hard to be stimulatingly placed by an expansion screw provided by the prior art is solved, placing time is reduced to the current five minutes from the previous ten minutes, the expansion screw is time-saving, labor-saving, attractive and elegant, and after the screw is placed, only an arch-circular outer hexagon nut with a cross groove on the top exposes , beauty is not affected, excessive special positions are not occupied, when being not needed, the screw can be counter-screwed out through a variety of tools, therefore the expansion screw is convenient to use.
Description
Technical field
The utility model relates to the hardware products technical field, particularly a kind of pull explosive screw.
Background technique
The pull explosive screw that prior art provides, it is by the tapered screw rod in lower end, overcoat, nut consists of, screw rod is through at overcoat and then with nut screw rod is fixed, during use, bore on the wall or on the ground first a hole that matches with overcoat, then put into pull explosive screw, the turn nut is extracted screw rod out, because the screw rod lower end is up-small and down-big taper, under the effect of screw rod tapering part, three slivers in overcoat lower end can pop and press the inner face in hole outward, and pull explosive screw just is fixed on the wall or the ground, again nut is outwarded winding material installed is loaded onto, again nut is screwed in compression, so just relatively more difficult, time-consuming many when mounted; And after installing, nut and one section very long screw rod are exposed, and take up room, and scrape easily that thing is hurted sb.'s feelings and not attractive in appearance.Not again difficult taking-up of time spent.
The model utility content
The utility model provides a kind of and fills time saving and energy saving and the little pull explosive screw that takes up room.
To achieve these goals, the utility model provides following technological scheme:
A kind of pull explosive screw, it comprises: nut, screw rod and blast cover, and described nut is arranged on the top of described screw rod, and the periphery of the lower part of described screw rod is provided with outside thread, the upper end of described blast cover is the multi-disc sliver, and described blast cover is enclosed within the lower part of described screw rod.
Preferably, described nut is the nut of regular hexagon, and the center of the top end of described nut is provided with cross recess.
Preferably, the lower end of described blast cover is provided with anti-slip veins.
By implementing above technological scheme, have following technique effect: the pull explosive screw that the utility model provides is passed material installed and is directly put into the hole, screws screw rod the blast cover is popped, and fixedly material installed is finished in disposable operation.The pull explosive screw that having solved prior art provides is difficult to a difficult problem that the object that is fixed installed simultaneously.Thereby will the installation time from before shortened to present five minutes in ten minutes, time saving and energy saving, and elegant in appearance.And the outer-hexagonal nut that only exposes an arc dome band cross recess after installing does not affect the appearance and do not take too much spatial position, and at available multiple types of tools when not required the screw rod derotation is twisted and can be taken out, and is easy to use.
Description of drawings
The shape assumption diagram of the first pull explosive screw that Fig. 1 provides for the utility model;
The shape assumption diagram of the second pull explosive screw that Fig. 2 provides for the utility model;
The shape assumption diagram of the screw rod that Fig. 3 provides for the utility model;
The shape assumption diagram that Fig. 4 overlaps for the first blast that the utility model provides;
The shape assumption diagram that Fig. 5 overlaps for the second blast that the utility model provides.
Embodiment
In order better to understand the technical solution of the utility model, describe the embodiment that the utility model provides in detail below in conjunction with accompanying drawing.
The utility model embodiment provides a kind of pull explosive screw, as shown in Figure 1, comprise: nut 101, screw rod 104 and blast cover 105, described nut 101 is arranged on the top of described screw rod 104, the periphery of the lower part of described screw rod 104 is provided with outside thread 107, the upper end of described blast cover 105 is multi-disc sliver 108, and described blast cover 105 is enclosed within the lower part of described screw rod 104, and the sliver 108 of the upper end of described blast cover 105 is towards the direction of described nut 101.The outside thread of 104 times parts of this screw rod matches with the internal thread of blast cover 105, makes this blast cover 105 be enclosed within the lower part of this screw rod 104.State nut 101 and be the nut of regular hexagon, the center of the top end of described nut 101 is provided with cross recess 102.The bottle openers different with convenient, flexible use carry out knob, and the lower end of described blast cover 105 is provided with anti-slip veins 106.
The bottom of described screw rod 104 is divided into taper, and the periphery of this taper is provided with above-mentioned outside thread 107, to insert easily described blast cover 105.
The utility model embodiment provides another kind of pull explosive screw, as shown in Figure 2, comprise: nut 201, screw rod 204 and blast cover 205, described nut 201 is arranged on the top of described screw rod 204, the periphery of the lower part of described screw rod 204 is provided with outside thread 207, the upper end of described blast cover 205 is multi-disc sliver 208, and described blast cover 205 is enclosed within the lower part of described screw rod 204, and the sliver 208 of the upper end of described blast cover 205 is towards the direction of described nut 201.The outside thread of 204 times parts of this screw rod matches with the internal thread of blast cover 205, makes this blast cover 205 be enclosed within the lower part of this screw rod 204.State nut 201 and be the nut of regular hexagon, the center of the top end of described nut 201 is provided with cross recess 202.The lower end of described blast cover 205 does not arrange anti-slip veins.
More than a kind of pull explosive screw that the utility model embodiment is provided be described in detail, for one of ordinary skill in the art, thought according to the utility model embodiment, all will change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model.
Claims (3)
1. a pull explosive screw is characterized in that, comprising: nut, screw rod and blast cover, described nut is arranged on the top of described screw rod, the periphery of the lower part of described screw rod is provided with outside thread, and the upper end of described blast cover is the multi-disc sliver, and described blast cover is enclosed within the lower part of described screw rod.
2. pull explosive screw as claimed in claim 1 is characterized in that described nut is the nut of regular hexagon, and the center of the top end of described nut is provided with cross recess.
3. pull explosive screw as claimed in claim 1 or 2 is characterized in that, the lower end of described blast cover is provided with anti-slip veins.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220241777 CN202900879U (en) | 2012-05-25 | 2012-05-25 | Expansion screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220241777 CN202900879U (en) | 2012-05-25 | 2012-05-25 | Expansion screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202900879U true CN202900879U (en) | 2013-04-24 |
Family
ID=48121555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220241777 Expired - Fee Related CN202900879U (en) | 2012-05-25 | 2012-05-25 | Expansion screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202900879U (en) |
-
2012
- 2012-05-25 CN CN 201220241777 patent/CN202900879U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20130424 Termination date: 20150525 |
|
| EXPY | Termination of patent right or utility model |