CN203297233U - Anti-slip expansion bolt - Google Patents
Anti-slip expansion bolt Download PDFInfo
- Publication number
- CN203297233U CN203297233U CN2013202233134U CN201320223313U CN203297233U CN 203297233 U CN203297233 U CN 203297233U CN 2013202233134 U CN2013202233134 U CN 2013202233134U CN 201320223313 U CN201320223313 U CN 201320223313U CN 203297233 U CN203297233 U CN 203297233U
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- China
- Prior art keywords
- expansion
- head
- bolt
- nut
- slip
- 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 anti-slip expansion bolt, which comprises a nut, a spacer, a screw and an expansion head which is arranged at the lower end of the screw, wherein the nut is connected with the screw through the spacer, the lower end of the spacer is provided with anti-slip teeth, the bolt is provided with a through hole which runs through from the top of the nut to the bottom of the expansion head, the upper end of the through hole is provided with a pin, and the head of the pin is round. The utility model aims to design an anti-slip expansion bolt; the expansion head is arranged, so the fastening capability is greatly enhanced; the spacer is arranged, so the friction between the expansion bolt and an object is increased; the anti-slip teeth arranged at the lower end of the spacer have an anti-slip effect.
Description
Technical field
The utility model relates to a kind of fastening piece, particularly a kind of anti-slip expantion bolt.
Background technique
Bolt is by head and screw rod (with an externally threaded cylindrical body) class fastening piece dimerous, need coordinate with nut, for being fastenedly connected two parts with through hole, this Connecting format claims bolt to connect, as nut is screwed off from bolt, can make again these two parts separately, be to belong to removably connect therefore bolt connects.
EXPANSION ANCHOR BOLTS, be pipeline is propped up/hangs/carriage or equipment are fixing on the wall, a kind of special thread link used on floor, on post, common being bolted on thicker object is easily loosening, fixing insecure, usually causes coming off.
Summary of the invention
For addressing the above problem, the utility model discloses a kind of anti-slip expantion bolt, the setting of expansion-head is strengthened fastening ability greatly, the frictional force that increase and object are set of pad, the slideproof tooth that is arranged under pad can play skidproof effect.
The utility model provides a kind of anti-slip expantion bolt, described anti-slip expantion bolt comprises nut, pad, screw rod, and the expansion-head that is arranged on described screw rod lower end, described nut connects described screw rod by pad, in the pad lower end, be provided with slideproof tooth, on bolt, be provided with and connect the through hole of nut top to the expansion-head bottom, in the through hole upper end, pin is installed, described pin head is round end.A kind of anti-slip expantion bolt of the purpose of this utility model design, the setting of expansion-head is strengthened fastening ability greatly, the frictional force that increase and object are set of pad, the slideproof tooth that is arranged under pad can play skidproof effect, pin is driven in through hole, the expansion alliteration, on object, plays reinforcement effect.
The utility model discloses a kind of a kind of improvement of anti-slip expantion bolt, on described expansion-head, be provided with notch, described notch is at least 3.On this improvement expansion-head, be provided with notch, purpose is the intensity that strengthens expansion-head, makes it more durable, extends its working life, and arranging of notch is fixing more firm.
The utility model discloses a kind of a kind of improvement of anti-slip expantion bolt, the length of described pin is greater than the distance of nut top to the screw rod bottom.The length of this improvement pin is greater than the distance of nut top to the screw rod bottom, and purpose is that screw can effectively make the expansion-head distending on object.
A kind of anti-slip expantion bolt of the purpose of this utility model design, the setting of expansion-head is strengthened fastening ability greatly, the frictional force that increase and object are set of pad, the slideproof tooth that is arranged under pad can play skidproof effect, pin is driven in through hole, the expansion alliteration, on object, plays reinforcement effect.
The accompanying drawing explanation
Fig. 1, be a kind of structural representation of anti-slip expantion bolt.
Reference numerals list:
11, nut;
21, pad;
31, screw rod;
41, through hole;
51, expansion-head;
61, slideproof tooth;
71, pin;
81, notch.
Embodiment
Below in conjunction with the drawings and specific embodiments, further illustrate the utility model, should understand following embodiment and only be used to the utility model is described, be not used in restriction scope of the present utility model.It should be noted that, word 'fornt', 'back', " left side ", " right side ", "up" and "down" that use is described below refer to the direction in accompanying drawing, word " interior " and " outward " refer to respectively towards or away from the direction of specific features geometrical center.
Embodiment 1:
As shown in Figure 1, the utility model provides a kind of anti-slip expantion bolt, described anti-slip expantion bolt comprises nut 11, pad 21, screw rod 31, and the expansion-head 51 that is arranged on described screw rod 31 lower ends, described nut 11 connects described screw rod 31 by pad 21, in pad 21 lower ends, is provided with slideproof tooth 61, described slideproof tooth 61 is triangular in shape, on bolt, be provided with the through hole 41 that connects nut 11 tops to expansion-head 51 bottoms, in through hole 41 upper ends, pin 71 be installed, described pin 71 heads are round end.A kind of anti-slip expantion bolt of the purpose of this utility model design, the setting of expansion-head is strengthened fastening ability greatly, the frictional force that increase and object are set of pad, the slideproof tooth that is arranged under pad can play skidproof effect, pin is driven in through hole, the expansion alliteration, on object, plays reinforcement effect.
Embodiment 2:
The described a kind of anti-slip expantion bolt of embodiment 1, be provided with notch 81 on described expansion-head 51, and described notch 81 is at least 3.On this improvement expansion-head, be provided with notch, purpose is the intensity that strengthens expansion-head, makes it more durable, extends its working life, and arranging of notch is fixing more firm.
Embodiment 3:
The described a kind of anti-slip expantion bolt of embodiment 1, the length of described pin 71 is greater than the distance of nut 11 tops to screw rod 31 bottoms.The length of this improvement pin is greater than the distance of nut top to the screw rod bottom, and purpose is that screw can effectively make the expansion-head distending on object.
A kind of anti-slip expantion bolt of the purpose of this utility model design, the setting of expansion-head is strengthened fastening ability greatly, the frictional force that increase and object are set of pad, the slideproof tooth that is arranged under pad can play skidproof effect, pin is driven in through hole, the expansion alliteration, on object, plays reinforcement effect.
The above; it is only preferred embodiment of the present utility model; be not the utility model to be done to the restriction of any other form, and, according to any modification or equivalent variations that technical spirit of the present utility model is done, still belong to the utility model scope required for protection.
Claims (3)
1. anti-slip expantion bolt, it is characterized in that: described anti-slip expantion bolt comprises nut (11), pad (21), screw rod (31), and the expansion-head (51) that is arranged on described screw rod (31) lower end, described nut (11) connects described screw rod (31) by pad (21), in pad (21) lower end, be provided with slideproof tooth (61), described slideproof tooth (61) is triangular in shape, on bolt, be provided with and connect the through hole (41) of nut (11) top to expansion-head (51) bottom, in through hole (41) upper end, pin (71) is installed, described pin (71) head is round end.
2. a kind of anti-slip expantion bolt according to claim 1, it is characterized in that: on described expansion-head (51), be provided with notch (81), described notch (81) is at least 3.
3. a kind of anti-slip expantion bolt according to claim 1 is characterized in that: the length of described pin (71) is greater than the distance of nut (11) top to screw rod (31) bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202233134U CN203297233U (en) | 2013-04-28 | 2013-04-28 | Anti-slip expansion bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202233134U CN203297233U (en) | 2013-04-28 | 2013-04-28 | Anti-slip expansion bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203297233U true CN203297233U (en) | 2013-11-20 |
Family
ID=49573242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202233134U Expired - Fee Related CN203297233U (en) | 2013-04-28 | 2013-04-28 | Anti-slip expansion bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203297233U (en) |
-
2013
- 2013-04-28 CN CN2013202233134U patent/CN203297233U/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131120 Termination date: 20140428 |