CN211231190U - Expansion bolt with threaded fixing - Google Patents
Expansion bolt with threaded fixing Download PDFInfo
- Publication number
- CN211231190U CN211231190U CN201922153165.3U CN201922153165U CN211231190U CN 211231190 U CN211231190 U CN 211231190U CN 201922153165 U CN201922153165 U CN 201922153165U CN 211231190 U CN211231190 U CN 211231190U
- Authority
- CN
- China
- Prior art keywords
- expansion
- fastening nut
- thread
- cover body
- screw
- 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.)
- Active
Links
Images
Abstract
The utility model discloses a threaded fixing's expansion bolts, including the screw body, sleeve pipe, a plurality of expansion arm, fastening nut and thread fixing mechanism, the front end integrated into one piece of the screw body has the expansion head, by preceding sleeve pipe, thread fixing mechanism and fastening nut of being equipped with in proper order after to on the screw body, sheathed tube front end is equipped with evenly distributed's expansion arm, thread fixing mechanism includes the T shape cover body, tapping portion and screw thread portion, be equipped with tapping portion and screw thread portion after to by preceding in proper order on the global of the little diameter section of the T shape cover body, the rear end of the T shape cover body can be dismantled with fastening nut and be connected, compares with prior art, can improve the fixed reliability to convenient to use.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to an expansion bolts's technical field, especially a threaded fixing's expansion bolts's technical field.
[ background of the invention ]
The expansion bolt utilizes the wedge-shaped slope to promote expansion to generate friction bond force, thereby achieving the fixing effect. One end of the screw body is provided with a thread, and the other end is provided with a taper. The steel sheet is covered on the outer surface, a plurality of notches are arranged on one half of the iron sheet cylinder, the steel sheet cylinder and the notches are plugged into a hole drilled in a wall together, then a nut is locked, the nut pulls the screw body outwards to pull the taper into the steel sheet cylinder, the steel sheet cylinder is expanded, and then the steel sheet cylinder is tightly fixed on the wall and is generally used for fastening protective guards, rain awnings, air conditioners and the like on materials such as cement, bricks and the like. The fixation is realized only by the friction force between the expanded steel cylinder and the wall body, and the fixation point is only one, so that the fixation is not very reliable.
[ Utility model ] content
The utility model aims at solving the problem in the prior art, providing a threaded fixing's expansion bolts, can improve fixed reliability to convenient to use.
In order to realize the above-mentioned purpose, the utility model provides a threaded fixing's expansion bolts, including the screw body, sleeve pipe, a plurality of expansion arm, fastening nut and thread fixing mechanism, the front end integrated into one piece of the screw body has the expansion head, by preceding sleeve pipe, thread fixing mechanism and fastening nut of being equipped with in proper order after to on the screw body, the sheathed tube front end is equipped with evenly distributed's expansion arm, thread fixing mechanism includes the T shape cover body, tapping portion and screw thread portion, be equipped with tapping portion and screw thread portion after to by preceding on the global of the little diameter section of the T shape cover body in proper order, the rear end and the fastening nut of the T shape cover body can be dismantled and be connected.
Preferably, the tapping portion is formed by a plurality of cutting ridges, and all the cutting ridges are sequentially cut in a front-to-rear order to finally form a thread groove matched with the thread portion on the cut object.
Preferably, the cross section of the large-diameter section of the T-shaped sleeve body is in the shape of a regular polygon.
Preferably, the rear end of the T-shaped sleeve body is provided with a connecting portion, the connecting portion is provided with a connecting sleeve in threaded connection, the rear end of the connecting sleeve is provided with a retaining ring which is rotatably sleeved on the fastening nut, and the circumferential surface of the front end of the fastening nut is provided with an annular protrusion for blocking the retaining ring.
Preferably, the expansion head is in a circular truncated cone shape with a large front part and a small rear part, and the diameter of the rear end of the expansion head is equal to the diameter of the screw body.
The utility model has the advantages that: the utility model discloses a with T cover body the minor diameter section global on by preceding tapping portion and screw thread portion of being equipped with in proper order after to, form with screw thread portion matched with thread groove through the pore wall cutting of tapping portion to the mounting hole to increase the fixed point, and screw thread portion forms embedded fixed with the thread groove cooperation, compare with prior art, can improve fixed reliability, and convenient to use.
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 the expansion bolt with thread fastening of the present invention.
In the figure: 1-a screw rod body, 2-a sleeve, 3-an expansion arm, 4-a fastening nut, 5-a thread fixing mechanism, 6-an expansion head, 7-a connecting sleeve, 71-a retainer ring, 41-an annular bulge, 51-a T-shaped sleeve body, 52-a cutting convex tooth, 53-a thread part and 54-a connecting part.
[ detailed description ] embodiments
Referring to fig. 1, the utility model relates to an expansion bolt with thread fastening, including the screw body 1, sleeve pipe 2, a plurality of expansion arm 3, fastening nut 4 and thread fastening mechanism 5, the front end integrated into one piece of screw body 1 has expansion head 6, sleeve pipe 2, thread fastening mechanism 5 and fastening nut 4 are equipped with in proper order from front to back on the screw body 1, the front end of sleeve pipe 2 is equipped with evenly distributed expansion arm 3, thread fastening mechanism 5 includes the T-shaped cover body 51, tapping portion and screw thread portion 53, be equipped with tapping portion and screw thread portion 53 in proper order from front to back on the global of the minor diameter section of the T-shaped cover body 51, the rear end of the T-shaped cover body 51 can be dismantled with fastening nut 4 and be connected, tapping portion comprises a plurality of cutting convex teeth 52, all cutting convex teeth 52 cut in proper order from front to back and finally form the thread groove with screw thread portion 53 matched with on the body being cut, the cross section of the big diameter section of the T-shaped cover body 51 is regular polygon shape, the rear end of the T-shaped cover body 51 is provided with a connecting part 54, the connecting part 54 is provided with a connecting sleeve 7 connected with threads, the rear end of the connecting sleeve 7 is provided with a retaining ring 71 which is rotatably sleeved on the fastening nut 4, the circumferential surface of the front end of the fastening nut 4 is provided with an annular bulge 41 for blocking the retaining ring 71, the expansion head 6 is in a round table shape with big front and small back, and the diameter of the rear end of the expansion head 6 is equal to that of the screw body 1.
The utility model discloses the working process:
the utility model relates to a threaded fixation's expansion bolts is in the course of the work, insert the mounting hole with this application, then revolve wrong T shape cover body 51 and make its minor diameter section screw in mounting hole, then revolve wrong fastening nut 4 forward motion, when fastening nut 4 is blockked by the T shape cover body 51, fastening nut 4 drives the screw body 1 rearward movement, when the rear end of sleeve pipe 2 is blockked by the T shape cover body 51, sleeve pipe 2 and the unable rearward movement of inflation arm 3, and inflation head 6 struts the front end that expands arm 3 along with screw body 1 continues the rearward movement and makes it compress tightly on the pore wall of mounting hole, then establish connecting sleeve 7 cover on fastening nut 4 and be connected with connecting portion 54.
The above-mentioned embodiment is right the utility model discloses an explanation, it is not right the utility model discloses a limited, any right the scheme after the simple transform of the utility model all belongs to the protection scope of the utility model.
Claims (5)
1. The utility model provides a take thread tightening's expansion bolts which characterized in that: including the screw rod body (1), sleeve pipe (2), a plurality of expansion arm (3), fastening nut (4) and thread tightening mechanism (5), the front end integrated into one piece of the screw rod body (1) has expansion head (6), be equipped with sleeve pipe (2), thread tightening mechanism (5) and fastening nut (4) by preceding after to in proper order on the screw rod body (1), the front end of sleeve pipe (2) is equipped with evenly distributed's expansion arm (3), thread tightening mechanism (5) are including the T shape cover body (51), tapping portion and screw thread portion (53), be equipped with tapping portion and screw thread portion (53) after to in proper order on the global of the minor diameter section of the T shape cover body (51), the rear end and the fastening nut (4) of the T shape cover body (51) can be dismantled and be connected.
2. A threaded anchor expansion bolt as claimed in claim 1 wherein: the tapping part is composed of a plurality of cutting convex teeth (52), and all the cutting convex teeth (52) cut in sequence from front to back to finally form a thread groove matched with the thread part (53) on the cut object.
3. A threaded anchor expansion bolt as claimed in claim 1 wherein: the cross section of the large-diameter section of the T-shaped sleeve body (51) is in a regular polygon shape.
4. A threaded anchor expansion bolt as claimed in claim 1 wherein: the rear end of the T-shaped sleeve body (51) is provided with a connecting part (54), the connecting sleeve (7) connected by threads is arranged on the connecting part (54), the rear end of the connecting sleeve (7) is provided with a retaining ring (71) which is rotatably sleeved on the fastening nut (4), and the circumferential surface of the front end of the fastening nut (4) is provided with an annular bulge (41) for blocking the retaining ring (71).
5. A threaded fixing expansion bolt according to any one of claims 1 to 4, wherein: the expansion head (6) is in a round table shape with a large front part and a small back part, and the diameter of the back end of the expansion head (6) is equal to that of the screw rod body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922153165.3U CN211231190U (en) | 2019-12-05 | 2019-12-05 | Expansion bolt with threaded fixing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922153165.3U CN211231190U (en) | 2019-12-05 | 2019-12-05 | Expansion bolt with threaded fixing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211231190U true CN211231190U (en) | 2020-08-11 |
Family
ID=71916025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922153165.3U Active CN211231190U (en) | 2019-12-05 | 2019-12-05 | Expansion bolt with threaded fixing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211231190U (en) |
-
2019
- 2019-12-05 CN CN201922153165.3U patent/CN211231190U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3709088A (en) | Quick acting, high tensile, blind fastener | |
| CN204371857U (en) | A kind of removal tool special of quick detachable type EXPANSION ANCHOR BOLTS | |
| CN201027743Y (en) | Double-point expanding screw bolt | |
| CN106567331B (en) | A kind of adjustable steel wire dragline anchorage | |
| JPWO2009128171A1 (en) | Post-installed anchor bolt | |
| CN211231190U (en) | Expansion bolt with threaded fixing | |
| CN102728768B (en) | Method for fastening member with high strength and low riveting force and 10.9-level short-tail pulling rivet | |
| CN203784049U (en) | Locking type expansion bolt | |
| GB663755A (en) | Improvements in the attachment of tubes to other tubes or to prepared anchorages | |
| CN203821765U (en) | Multilayer elastic hook anchor bolt | |
| CN209509532U (en) | A kind of self-locking anchorage of compressor wire tensioning | |
| CN111911513A (en) | Bolt and nut capable of being installed quickly | |
| CN216742348U (en) | Fastening anchor | |
| CN206035979U (en) | Expansion bolt | |
| CN206111772U (en) | Simple and easy expansion bolts | |
| CN212389625U (en) | Quick-mounting expansion bolt | |
| CN211231191U (en) | Adjustable fish eye gecko | |
| CN211737713U (en) | Anti-loosening fastener and wrench | |
| CN2514115Y (en) | Expansion-type telescopic metallic anchor rod | |
| CN105422601A (en) | Lock nut | |
| CN212202758U (en) | Novel opposite-impact expansion bolt | |
| CN204435567U (en) | A kind of construction work connects composite construction with truss | |
| CN212055416U (en) | Fish-eye gecko | |
| CN205742973U (en) | A kind of polylinker scaffold | |
| CN212407243U (en) | Flush back bolt |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |