CN211778399U - Expansible anchor bolt - Google Patents
Expansible anchor bolt Download PDFInfo
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- CN211778399U CN211778399U CN201922498040.4U CN201922498040U CN211778399U CN 211778399 U CN211778399 U CN 211778399U CN 201922498040 U CN201922498040 U CN 201922498040U CN 211778399 U CN211778399 U CN 211778399U
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- sleeve
- groove
- anchor
- expansion groove
- fixing part
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Abstract
The utility model provides an expansibility crab-bolt, its characterized in that: including stock and sleeve, telescopic front end is equipped with the fixed part, the front end of fixed part is equipped with anti-skidding groove, the fixed part with connect through first horizontal expansion groove between the anti-skidding groove, the fixed part with connect through second horizontal expansion groove between the sleeve, be equipped with a plurality of vertical expansion grooves on fixed part, anti-skidding groove, first horizontal expansion groove and the second horizontal expansion groove, the inside stock that is equipped with of sleeve. Compared with the prior art, the anti-slip sleeve has the advantages that the anti-slip groove and the fixing part are arranged on the front side of the sleeve, so that the sleeve can be prevented from sliding in the installation process; the design of the first transverse expansion groove and the second transverse expansion groove can increase the tightness of the expansion anchor bolt; the limit anchor point, the limit bulge and the installation indication mark line can have clear indication in the installation process, so that the requirement on an operator can be reduced.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to a fastener design technical field, in particular to expansibility crab-bolt.
[ background of the invention ]
An expansion anchor bolt, called an expansion bolt for short, is an assembly which utilizes the relative movement of a cone and an expansion sheet (or an expansion sleeve) to promote the expansion of the expansion sheet, generates expansion extrusion force with hole wall concrete and generates anti-pulling force through shearing friction action to realize the anchoring of a connected piece.
In the prior art, the front part of a sleeve of an expansible anchor bolt is only provided with a longitudinal expansion groove, and when the sleeve is expanded and fastened, the fastening mode is single; because stock and sleeve are inside being knocked into the wall body, probably have sideslip to lead to the installation not just in the process of knocking into, and lack certain spacing mark and installation indicating mark at sleeve and stock rear side for need operating personnel to judge by oneself experience during the installation, therefore have certain technical requirement to the operator.
[ Utility model ] content
An object of the utility model is to provide an expansible crab-bolt to overcome not enough among the prior art.
In order to achieve the above object, the utility model provides a following technical scheme:
the embodiment of the application discloses expansible crab-bolt, its characterized in that: including stock, sleeve, fixed part, antiskid groove, telescopic front end is equipped with the fixed part, the front end of fixed part is equipped with antiskid groove, the fixed part with connect through first horizontal expansion groove between the antiskid groove, the fixed part with connect through second horizontal expansion groove between the sleeve, be equipped with a plurality of vertical expansion grooves on fixed part, antiskid groove, first horizontal expansion groove and the second horizontal expansion groove, the inside stock that is equipped with of sleeve, the front end of stock is equipped with the countersunk head, the countersunk head is located the telescopic front end outside, the rear end of stock is equipped with the threaded rod, threaded rod portion is located the telescopic rear end outside.
Preferably, one side of the sleeve, which is close to the threaded rod, is provided with a plurality of limiting anchor points, the inner wall of the sleeve, where the limiting anchor points are located, is provided with limiting protrusions, the radius of the limiting protrusions is smaller than that of the threaded rod, and the radius of the limiting protrusions is larger than that of the anchor rods.
Preferably, the maximum outer diameter of the countersunk head is larger than the inner diameter of the sleeve, and a smooth conical structure with gradually reduced outer diameter is formed between the countersunk head and the anchor rod.
Preferably, one side of the anchor rod close to the threaded rod is provided with an installation indication mark line.
Preferably, the width of the first transverse expansion groove is smaller than that of the second transverse expansion groove, the number of the longitudinal expansion grooves is 4-6, and the longitudinal expansion grooves penetrate through the fixing part, the anti-slip groove, the outer walls of the first transverse expansion groove and the outer walls of the second transverse expansion groove.
Preferably, the threaded rod is provided with a washer and a nut.
The utility model has the advantages that: compared with the prior art, the expansible anchor bolt provided by the utility model has reasonable structure, and the sleeve can be prevented from sliding in the installation process by arranging the anti-slip groove and the fixing part at the front side of the sleeve; the design of the first transverse expansion groove and the second transverse expansion groove can increase the tightness of the expansion anchor bolt; the limit anchor point, the limit bulge and the installation indication mark line can have clear indication in the installation process, so that the requirement on an operator can be reduced.
The features and advantages of the present invention will be described in detail by embodiments with reference to the accompanying drawings.
[ description of the drawings ]
Fig. 1 is a schematic structural view of an expansible anchor according to an embodiment of the present invention;
fig. 2 is a cross-sectional view of an expansible anchor according to an embodiment of the invention.
In the figure: 1-anchor rod, 11-countersunk head, 12-threaded rod, 13-installation indication mark line, 2-sleeve, 21-limit anchor point, 211-limit projection, 3-fixing part, 31-first transverse expansion groove, 32-second transverse expansion groove, 33-longitudinal expansion groove, 4-anti-slip groove, 5-gasket and 6-nut.
[ detailed description ] embodiments
In order to make the objects, technical solutions and advantages of the present invention more clear, the present invention is further described in detail through the accompanying drawings and embodiments. It should be understood, however, that the description herein of specific embodiments is only intended to illustrate the invention and not to limit the scope of the invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
Referring to fig. 1, an embodiment of the present invention provides an expansible anchor bolt, characterized in that: including stock 1, sleeve 2, fixed part 3, antiskid groove 4, the front end of sleeve 2 is equipped with fixed part 3, the front end of fixed part 3 is equipped with antiskid groove 4, fixed part 3 with connect through first horizontal expansion groove 31 between the antiskid groove 4, fixed part 3 with connect through second horizontal expansion groove 32 between the sleeve 2, be equipped with a plurality of vertical expansion grooves 33 on fixed part 3, antiskid groove 4, first horizontal expansion groove 31 and the second horizontal expansion groove 32, the inside stock 1 that is equipped with of sleeve 2, the front end of stock 1 is equipped with countersunk head 11, countersunk head 11 is located the front end outside of sleeve 2, the rear end of stock 1 is equipped with threaded rod 12, threaded rod 12 part is located the rear end outside of sleeve 2.
One side of sleeve 2 that is close to threaded rod 12 is equipped with the spacing anchor point 21 of a plurality of, be equipped with spacing arch 211 on the 2 inner walls of sleeve at spacing anchor point 21 place, the place radius of spacing arch 211 is less than the radius of threaded rod 12, the place radius of spacing arch 211 is greater than the radius of stock 1.
The maximum outer diameter of the countersunk head 11 is larger than the inner diameter of the sleeve 2, and a smooth conical structure with gradually reduced outer diameter is formed between the countersunk head 11 and the anchor rod 1. And one side of the anchor rod 1 close to the threaded rod 12 is provided with an installation indication mark line 13.
The width of the first transverse expansion groove 31 is smaller than that of the second transverse expansion groove 32, the number of the longitudinal expansion grooves 33 is 4-6, and the longitudinal expansion grooves 33 penetrate through the outer walls of the fixing part 3, the anti-skid groove 4, the first transverse expansion groove 31 and the second transverse expansion groove 32. The threaded rod 12 is provided with a washer 5 and a nut 6.
The utility model discloses the working process:
the utility model relates to an expansibility crab-bolt, in the course of the work, drill out corresponding size's hole on the wall earlier, knock into the hole on the wall with stock 1 and sleeve 2 again, reuse threaded rod 12 upper nut 6 toward screwing out stock 1, because the countersunk head 11 department of stock 1 front end is equipped with level and smooth toper structure, at the in-process of screwing out, cooperate first transverse expansion groove 31, second transverse expansion groove 32 and vertical expansion groove 33, 2 front ends of sleeve that can make expand, when exposing installation indicating mark line 13 on the stock 2 of screwing out, stop screwing out, accomplish the installation.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the present invention.
Claims (6)
1. An expansible anchor, characterized in that: the anchor rod comprises an anchor rod (1), a sleeve (2), a fixing part (3) and anti-skidding grooves (4), wherein the fixing part (3) is arranged at the front end of the sleeve (2), the anti-skidding grooves (4) are arranged at the front end of the fixing part (3), the fixing part (3) is connected with the anti-skidding grooves (4) through a first transverse expansion groove (31), the fixing part (3) is connected with the sleeve (2) through a second transverse expansion groove (32), a plurality of longitudinal expansion grooves (33) are arranged on the fixing part (3), the anti-skidding grooves (4), the first transverse expansion groove (31) and the second transverse expansion groove (32), the anchor rod (1) is arranged inside the sleeve (2), the front end of the anchor rod (1) is provided with a countersunk head (11), the countersunk head (11) is positioned outside the front end of the sleeve (2), and the rear end of the anchor rod (1) is provided with a threaded rod (12), the threaded rod (12) is partially located outside the rear end of the sleeve (2).
2. An expansible anchor as claimed in claim 1, in which: one side that sleeve (2) are close to threaded rod (12) is equipped with the spacing anchor point of a plurality of (21), be equipped with spacing arch (211) on sleeve (2) inner wall at spacing anchor point (21) place, the place radius of spacing arch (211) is less than the radius of threaded rod (12), the place radius of spacing arch (211) is greater than the radius of stock (1).
3. An expansible anchor as claimed in claim 1, in which: the maximum outer diameter of the countersunk head (11) is larger than the inner diameter of the sleeve (2), and a smooth conical structure with the outer diameter gradually reduced is formed between the countersunk head (11) and the anchor rod (1).
4. An expansible anchor as claimed in claim 1, in which: and one side of the anchor rod (1) close to the threaded rod (12) is provided with an installation indication mark line (13).
5. An expansible anchor as claimed in claim 1, in which: the width of the first transverse expansion groove (31) is smaller than that of the second transverse expansion groove (32), the number of the longitudinal expansion grooves (33) is 4-6, and the longitudinal expansion grooves (33) penetrate through the outer walls of the fixing part (3), the anti-skidding groove (4), the first transverse expansion groove (31) and the second transverse expansion groove (32).
6. An expansible anchor as claimed in claim 1, in which: and the threaded rod (12) is provided with a gasket (5) and a nut (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922498040.4U CN211778399U (en) | 2019-12-31 | 2019-12-31 | Expansible anchor bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922498040.4U CN211778399U (en) | 2019-12-31 | 2019-12-31 | Expansible anchor bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211778399U true CN211778399U (en) | 2020-10-27 |
Family
ID=72891775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922498040.4U Active CN211778399U (en) | 2019-12-31 | 2019-12-31 | Expansible anchor bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211778399U (en) |
-
2019
- 2019-12-31 CN CN201922498040.4U patent/CN211778399U/en active Active
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| GR01 | Patent grant |