CN212337840U - Convenient expansion screw who dismantles - Google Patents
Convenient expansion screw who dismantles Download PDFInfo
- Publication number
- CN212337840U CN212337840U CN202020831444.0U CN202020831444U CN212337840U CN 212337840 U CN212337840 U CN 212337840U CN 202020831444 U CN202020831444 U CN 202020831444U CN 212337840 U CN212337840 U CN 212337840U
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- screw
- head
- expansion pipe
- expansion
- tail end
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Abstract
The utility model discloses an expansion screw convenient to disassemble, which comprises a screw and an expansion pipe, wherein the front end of the expansion pipe is provided with a conical head, the conical head is provided with at least one longitudinal notch, the tail end of the expansion pipe is provided with an expansion pipe knocking head, the expansion pipe is internally provided with a hollow structure for inserting the screw, and the inner diameter of the conical head is smaller than the outer diameter of the main body part of the screw body; the tail end of the screw is provided with a screw head, and the screw body of the screw is provided with a section of anti-falling bulge; the inner wall of the expansion pipe is provided with a section of groove which is clamped with the anti-falling protrusion, and the head of the screw is detachably connected with the tail end of the screw; the middle part of the screw body of the screw is also provided with a sunken section with an outer diameter smaller than that of other positions. The expansion screw has the beneficial effects of being fast to install and fast to disassemble.
Description
Technical Field
The utility model relates to an expansion screw technical field specifically indicates a convenient expansion screw who dismantles.
Background
The expansion screw is generally a metal expansion screw, and the expansion screw is fixed by utilizing the wedge-shaped slope to promote expansion to generate friction bond force so as to achieve the fixing effect. The expansion screw generally comprises a screw and a nut, an expansion pipe is wrapped outside the screw, a notch is formed in the front end of the expansion pipe, the screw and the nut are plugged into a hole formed in a wall, the nut is locked, the screw is pulled outwards by the nut, the taper is pulled into the iron sheet cylinder, the expansion pipe is expanded, and then the expansion pipe is tightly fixed on the wall and is generally used for fastening protective guards, awnings, air conditioners and the like on materials such as cement, bricks and the like.
The expansion screw among the prior art generally adopts threaded structure, be about to the expansion screw stopper go into in the hole of beating, need slowly rotate screw rod or nut, make the expansion pipe expand outwards and open and reach fixed effect, nevertheless to some installation occasions that have the requirement to the installation rate, the expansion screw of this kind of structure is not suitable for, though, also has the expansion screw of knock type structure among the prior art, but the structure is complicated, and is with high costs.
The present applicant has invented an inflation screw that can install fast, in the installation, only need strike the screwhead can, need not to twist the nut, the applicable to that this screw can be fine has the environment of requirement to the installation rate, but the inventor also discovers that the inflation screw of this structure is relatively more troublesome when dismantling, has the installation fast, nevertheless dismantles inconvenient not enough.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide an installation is fast, dismantles the convenient inflation screw of dismantling also fast.
In order to solve the technical problem, the utility model provides a technical scheme does: an expansion screw convenient to disassemble comprises a screw and an expansion pipe, wherein the front end of the expansion pipe is provided with a conical head, the conical head is provided with at least one longitudinal notch, the tail end of the expansion pipe is provided with an expansion pipe knocking head, the expansion pipe is internally provided with a hollow structure for inserting the screw, and the inner diameter of the conical head is smaller than the outer diameter of the main body part of the screw body; the tail end of the screw is provided with a screw head, and the screw body of the screw is provided with a section of anti-falling bulge; the inner wall of the expansion pipe is provided with a section of groove which is clamped with the anti-falling protrusion, and the head of the screw is detachably connected with the tail end of the screw; the middle part of the screw body of the screw is also provided with a sunken section with an outer diameter smaller than that of other positions.
Preferably, a counter bore for embedding the screw head is arranged at the opening of the middle part of the knocking head of the expansion pipe.
Preferably, the screw head and the screw are clamped through a connecting port with a clamping groove.
After the structure is adopted, the utility model discloses following beneficial effect has: adopt non-thread formula structure, directly pack into the expansion pipe the back during installation, squeeze into the expansion pipe the screw can, do not have unnecessary structure, need not twist nut or screw rod, the structure is retrencied, the installation is swift, during the dismantlement, only need with screwdriver or conduction pole top the outer end of screw, continue to strike the screw hard for the sunk section of screw removes cone department, and the fastening force of extrusion cone disappears, and whole inflation screw is just loose, can directly strike head 4 and pull out through cliping the expansion pipe. Because the screw head and the screw are clamped and connected through the connecting port with the clamping groove, the screw head can be firstly detached or not detached during detachment, and the screw head and the connecting port can be directly knocked to be detached.
To sum up, the utility model provides an installation is fast, dismantles the convenient inflation screw of dismantling also fast.
Drawings
Fig. 1 is a schematic structural view of the conveniently detachable expansion screw of the present invention.
Fig. 2 is a view illustrating an assembled structure of the expansion screw of fig. 1.
As shown in the figure: the expansion pipe comprises a screw 1, an expansion pipe 2, a conical head 3, an expansion pipe knocking head 4, an anti-falling protrusion 5, a screw head 6, a concave section 7 and a connecting port 8.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
With reference to the attached drawings 1 and 2, the expansion screw convenient to disassemble comprises a screw 1 and an expansion pipe 2, wherein a conical head 3 is arranged at the front end of the expansion pipe 2, at least one longitudinal notch is formed in the conical head 3, an expansion pipe knocking head 4 is arranged at the tail end of the expansion pipe 2, a hollow structure for inserting the screw 1 is arranged in the expansion pipe 2, and the inner diameter of the conical head 3 is smaller than the outer diameter of a main body part of the screw 1; the tail end of the screw 1 is provided with a screw head 6, and the screw body of the screw 1 is provided with a section of anti-falling protrusion 5; the inner wall of the expansion pipe 2 is provided with a section of groove which is clamped with the anti-falling protrusion 5, and the screw head 6 is detachably connected with the tail end of the screw 1; the middle part of the screw body of the screw 1 is also provided with a concave section 7 with an outer diameter smaller than that of other positions.
Preferably, a counter bore for embedding the screw head 6 is arranged at the opening of the middle part of the expansion pipe knocking head 4.
Preferably, the screw head 6 and the screw 1 are clamped through a connecting port 8 with a clamping groove.
After the structure is adopted, the utility model discloses following beneficial effect has: adopt non-thread formula structure, directly pack into the expansion pipe the back during installation, squeeze into the expansion pipe the screw can, do not have unnecessary structure, need not twist nut or screw rod, the structure is retrencied, the installation is swift, during the dismantlement, only need with screwdriver or conduction pole top the outer end of screw 1, continue to strike the screw hard, make the depressed section 7 of screw remove conical head 3 department, the fastening force who extrudes conical head 3 disappears, whole inflation screw is just loose, can directly strike head 4 and pull out through cliping the expansion pipe. Because the screw head 6 is clamped with the screw 1 through the connecting port 8 with the clamping groove, the screw head 6 can be firstly detached or directly knocked without detaching during detachment, so that the screw head 6 is detached from the connecting port 8.
In specific implementation, the screw head 6 and the connecting port 8 can be connected by screw threads. Aiming at screws with different sizes, the special disassembling tool can be matched, namely, the conducting rod, the front end of the conducting rod is the same as or smaller than the outer diameter of the main body part of the screw 1, the rear end of the conducting rod is matched with a knocking head with a larger end surface area, and the length of the conducting rod is the length which is required to move when the sunken section 7 moves to the conical head 3. This is much quicker to disassemble. As for the separation between the end part of the screw 1 and the installation body, because the nail tip part is not provided with an expansion structure, the nail tip part is only extruded normally, if the nail tip part is pulled out, the lower expansion pipe knocking head 4 is knocked laterally, and the nail body of the screw is driven by the nail tip part to shake left and right until the nail body is loosened, so that the nail body can be pulled out.
The present invention and the embodiments thereof have been described above, but the description is not limited thereto, and the embodiment shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.
Claims (3)
1. The utility model provides an expansion screw of convenient dismantlement which characterized in that: the expansion bolt comprises a bolt (1) and an expansion pipe (2), wherein a conical head (3) is arranged at the front end of the expansion pipe (2), at least one longitudinal notch is formed in the conical head (3), an expansion pipe knocking head (4) is arranged at the tail end of the expansion pipe (2), a hollow structure for inserting the bolt (1) is arranged in the expansion pipe (2), and the inner diameter of the conical head (3) is smaller than the outer diameter of the main body part of the bolt body of the bolt (1); the tail end of the screw (1) is provided with a screw head (6), and the screw body of the screw (1) is provided with a section of anti-falling protrusion (5); the inner wall of the expansion pipe (2) is provided with a section of groove which is matched with the anti-falling protrusion (5) in a clamping way, and the screw head (6) is detachably connected with the tail end of the screw (1); the middle part of the screw body of the screw (1) is also provided with a sunken section (7) with the outer diameter smaller than that of other positions.
2. The easy-to-disassemble expansion screw of claim 1, wherein: and a counter bore for embedding the screw head (6) is arranged at the opening of the middle part of the expansion pipe knocking head (4).
3. The easy-to-disassemble expansion screw of claim 1, wherein: the screw head (6) is clamped with the screw (1) through a connecting port (8) with a clamping groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020831444.0U CN212337840U (en) | 2020-05-19 | 2020-05-19 | Convenient expansion screw who dismantles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020831444.0U CN212337840U (en) | 2020-05-19 | 2020-05-19 | Convenient expansion screw who dismantles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212337840U true CN212337840U (en) | 2021-01-12 |
Family
ID=74083291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020831444.0U Active CN212337840U (en) | 2020-05-19 | 2020-05-19 | Convenient expansion screw who dismantles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212337840U (en) |
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2020
- 2020-05-19 CN CN202020831444.0U patent/CN212337840U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |