CN215257235U - Novel expansion screw assembly - Google Patents
Novel expansion screw assembly Download PDFInfo
- Publication number
- CN215257235U CN215257235U CN202121094735.7U CN202121094735U CN215257235U CN 215257235 U CN215257235 U CN 215257235U CN 202121094735 U CN202121094735 U CN 202121094735U CN 215257235 U CN215257235 U CN 215257235U
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- screw rod
- screw
- nut
- groove
- expansion
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Abstract
The utility model discloses a novel inflation screw subassembly. The screw rod is provided with an unfilled groove, the groove wall of the unfilled groove is a smooth inclined plane, the sliding block is arranged at the unfilled groove, the gasket is sleeved on the screw rod, the nut is in threaded connection with the screw rod, and the gasket is located between the nut and the sliding block. The utility model discloses simple structure, the inflation area is big, and fastening effect is good, and the screw rod can not rotate.
Description
Technical Field
The utility model relates to an expansion screw field specifically is a novel expansion screw subassembly.
Background
The expansion screw is generally a metal expansion screw, and the expansion screw is fixed by utilizing the wedge slope to promote expansion to generate friction binding force, so as to achieve the fixing effect. The existing expansion screw structure is as follows: one end of the screw is provided with threads, and the other end of the screw is provided with conicity. The outer surface of the wall is covered by an iron sheet (steel pipe), a plurality of notches are arranged on one half of an iron sheet sleeve (steel pipe), the iron sheet sleeve (steel pipe) and the steel pipe are plugged into a hole drilled on the wall together, then a nut is locked, the nut pulls a screw outward to pull the taper into the iron sheet sleeve, and the iron sheet sleeve is expanded and is tightly fixed on the wall. The expansion screw is small in expansion area, the phenomenon that the screw rod slips in the sleeve in a rotating mode in the installation process is caused, and the fastening effect is poor.
SUMMERY OF THE UTILITY MODEL
The technique that exists is not enough to the aforesaid, the utility model aims at providing a novel inflation screw subassembly, its inflation area is big, and the fastening is effectual, and the screw rod can not rotate.
In order to solve the technical problem, the utility model adopts the following technical scheme:
the utility model provides a novel expansion screw subassembly, its characterized in that includes screw rod, nut, gasket, lacks groove and slider, it has the groove to open on the screw rod, the cell wall that lacks the groove is smooth inclined plane, the slider sets up in lacking groove department, and on the screw rod was arranged in to the gasket cover, nut and screw rod looks spiro union, the gasket is located between nut and the slider.
Preferably, the screw consists of a thread section and a vertical thread section or the outer surface of the screw is a full thread;
preferably, the slot and the sliding block are combined to form an expansion assembly, and one or more groups of expansion assemblies are arranged on the screw rod;
preferably, the bottom end of the screw rod is a conical surface.
The utility model has the advantages of simple structure, large expansion area, good fastening effect and no rotation of the screw rod.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a novel expansion screw assembly provided by the present invention;
fig. 2 is a schematic structural view of the novel expansion screw assembly provided by the present invention when being driven into a wall;
fig. 3 is a schematic structural view of the novel expansion screw assembly provided by the invention when being driven into a wall body to tighten a nut;
fig. 4 is a schematic structural view of a screw rod with a vertical thread section of the novel expansion screw assembly provided by the present invention.
Description of reference numerals:
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1-4, a novel expansion screw assembly comprises a screw rod 1, a nut 2, a gasket 3, an unfilled groove 4 and a slider 5, wherein the screw rod 1 is provided with the unfilled groove 4, the wall of the unfilled groove 4 is a smooth inclined surface, the slider 5 is arranged at the unfilled groove 4, the gasket 3 is sleeved on the screw rod 1, the nut 2 is in threaded connection with the screw rod 1, and the gasket 3 is positioned between the nut 2 and the slider 5.
Further, the screw rod 1 consists of a thread section and a vertical thread section 6 or the outer surface of the screw rod 1 is a full thread; the vertical thread section 6 has better effect of preventing the screw rod 1 from rotating, and the full thread has better anti-skid property on the sliding block 5.
Furthermore, the slot 4 and the sliding block 5 are combined to form an expansion assembly, and one or more groups of expansion assemblies are arranged on the screw rod 1.
Further, the bottom end of the screw rod 1 is a conical surface; is convenient to be driven into the wall hole.
When the screw rod is used, the screw rod 1 is driven inwards into the wall body 7, and the sliding block 5 and the screw rod 1 are driven into the wall body 7 together; then, sleeving the gasket 3 on the screw rod 1, screwing the nut 2 on the outer end of the screw rod 1, tightening the nut 2, wherein in the tightening process, the screw rod 1 is pulled outwards from the wall body 7 and moves outwards from the wall body 7, the inclined surface of the slot 4 of the screw rod 1 gradually extrudes the sliding block 5 along with the movement of the screw rod 1, the sliding block 5 is extruded towards the wall body 7, and a cavity 8 is formed between the sliding block 5 and the wide end of the slot 4; the tighter the nut 2 is, the more the screw 1 moves out of the wall 7, and the tighter the slider 5 is to the wall 7, thereby fixing the screw 1.
The utility model discloses a design simple structure, the inflation area is big, and fastening effect is good, and screw rod 1 can not rotate.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (4)
1. The utility model provides a novel expansion screw subassembly, its characterized in that includes screw rod, nut, gasket, lacks groove and slider, it has the groove to open on the screw rod, the cell wall that lacks the groove is smooth inclined plane, the slider sets up in lacking groove department, and on the screw rod was arranged in to the gasket cover, nut and screw rod looks spiro union, the gasket is located between nut and the slider.
2. The novel expansion screw assembly of claim 1, wherein the screw is comprised of two sections, a threaded section and a vertical section or the outer surface of the screw is fully threaded.
3. The novel expansion screw assembly as claimed in claim 1 or 2, wherein the slot and the sliding block are combined to form an expansion assembly, and one or more sets of expansion assemblies are disposed on the screw rod.
4. The novel expansion screw assembly of claim 3 wherein said shank end is tapered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121094735.7U CN215257235U (en) | 2021-05-20 | 2021-05-20 | Novel expansion screw assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121094735.7U CN215257235U (en) | 2021-05-20 | 2021-05-20 | Novel expansion screw assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215257235U true CN215257235U (en) | 2021-12-21 |
Family
ID=79457152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121094735.7U Active CN215257235U (en) | 2021-05-20 | 2021-05-20 | Novel expansion screw assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215257235U (en) |
-
2021
- 2021-05-20 CN CN202121094735.7U patent/CN215257235U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |