CN206754093U - The portable installation swell fixture of square head - Google Patents
The portable installation swell fixture of square head Download PDFInfo
- Publication number
- CN206754093U CN206754093U CN201720598087.6U CN201720598087U CN206754093U CN 206754093 U CN206754093 U CN 206754093U CN 201720598087 U CN201720598087 U CN 201720598087U CN 206754093 U CN206754093 U CN 206754093U
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- CN
- China
- Prior art keywords
- projectile
- section
- diameter
- expansion piece
- cap
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- 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 a kind of portable installation swell fixture of square head, belongs to hardware ＆ tools technical field.It is not portable that it solves existing screw, while the problem of inconvenience is installed.The portable installation swell fixture of this square head, including nut and screw rod, the connecting rod of cylindrical shape is provided between nut and screw rod, the diameter of section of connecting rod is identical with the diameter of section of screw rod, the lower end of screw rod is provided with head of screw, connecting rod is provided with projectile, expansion piece is cased with screw rod, projectile includes promoting cap, projectile top, in the middle part of projectile and projectile bottom, promote the upper surface center of cap, the upper surface center at upper surface center and projectile top in the middle part of projectile is provided with the through hole one to match with nut cross sectional shape, the upper surface center of projectile bottom is provided with the through hole two to match with connecting rod cross sectional shape diameter, through hole one is connected with through hole two and runs through projectile.The utility model has structure novelty, simple and practical, the advantages of being convenient for carrying and install.
Description
Technical field
The utility model belongs to hardware ＆ tools technical field, is related to a kind of screw, particularly a kind of portable installation of square head
Swell fixture.
Background technology
Current swell fixture, which is generally a screw rod with inverted cone and is enclosed on screw rod and carries, can expand notch
Expansion sleeve, when in use, one and the diameter of expansion sleeve and the expanding screw nail of length adaptation, Ran Houfang are first dug on wall
Enter swell fixture, expand expansion sleeve by the nut tightened on screw rod, until swell fixture fastens in wall, but tighten
Nut on screw rod is also needed to by instruments such as spanners, and external factor is too many, and practicality is not strong, while instrument is not easy at any time too much
Carrying everywhere, influence to install.
The content of the invention
The purpose of this utility model is above mentioned problem be present for existing technology, it is proposed that a kind of portable installation of square head
Swell fixture, its problem to be solved is how make it that swell fixture is simple and practical, convenient to carry whenever and wherever possible, is installed simultaneously
It is more convenient.
The purpose of this utility model can be realized by following technical proposal：The portable installation swell fixture of square head, including
Nut and screw rod, are provided with the connecting rod of cylindrical shape between the nut and screw rod, the diameter of section of the connecting rod with
The diameter of section of screw rod is identical, and the lower end of the screw rod is provided with head of screw, it is characterised in that the connecting rod, which is provided with, to be promoted
Part, is cased with expansion piece on the screw rod, and the projectile includes promoting cap, projectile top, in the middle part of projectile and under projectile
Portion, the diameter of section for promoting cap are more than the diameter of section on projectile top, and the diameter of section on the projectile top is more than
Diameter of section in the middle part of projectile, the diameter of section in the middle part of the projectile is more than the diameter of section of projectile bottom, described to push away
The upper surface center for entering the upper surface center of cap, the upper surface center in the middle part of projectile and projectile top is provided with and nut section
The through hole one that shape matches, the upper surface center of the projectile bottom are provided with what is matched with connecting rod cross sectional shape diameter
Through hole two, the through hole one are connected with through hole two and run through projectile.
Principle of the present utility model is as follows, and screw passes sequentially through the through hole one and through hole two of projectile, while nut is fixed
On through hole one, connecting rod is fixed on through hole two so that screw is fixed on projectile, while screw rod stretches out projectile and covered
There is expansion piece, screw rod can be driven to expand by expansion piece by projectile, instead of the instruments such as nut, spanner, it is simple and practical, just
In carrying, the installation effectiveness and service efficiency of screw are improved.
In the above-mentioned portable installation swell fixture of square head, cone is provided with the middle part of the projectile between projectile bottom
The strengthening segment of shape, the strengthening segment upper end connect the lower end in the middle part of projectile, the lower end connection projectile bottom of the strengthening segment
Upper end, the upper end cross-section diameter of the strengthening segment is identical with the diameter of section in the middle part of projectile, and the lower end of the strengthening segment is cut
Face diameter is identical with the diameter of section of projectile bottom, and the lower surface of the through hole one and the upper surface of through hole two are each provided at reinforcement
In section.By setting strengthening segment, the bulk strength of projectile is improved, while nut is located in strengthening segment, improves screw and exists
Steadiness in projectile.
In the above-mentioned portable installation swell fixture of square head, the upper end for promoting cap to be located at projectile top is described
Propulsion cap is hemispherical and is arc surface in the one side away from the projectile top, and the propulsion cap upper surface is provided with some
Individual arc stiffener, each arc stiffener are uniformly arranged in a ring centered on the center of circle for promoting cap.Promoted by setting
Cap, facilitate the service efficiency of projectile, set arc stiffener to effectively raise the intensity for promoting cap, while reduce production
Cost.
It is described to promote cap, projectile top, projectile middle part and push away in the above-mentioned portable installation swell fixture of square head
Enter the shaping of part portion integral.
In the above-mentioned portable installation swell fixture of square head, the expansion piece is included under expansion piece top and expansion piece
Portion, the expansion piece top and the shaping of expansion piece portion integral.
In the above-mentioned portable installation swell fixture of square head, expansion piece top section is annular, the expansion piece
The inner ring diameter of section on top is identical with the diameter of section of projectile bottom, and the outer ring diameter of section on the expansion piece top is less than
Diameter of section in the middle part of projectile, the length for being shorter in length than projectile bottom on the expansion piece top.When using projectile,
Projectile bottom enters expansion piece top, while projectile bottom grows the part on expansion piece top and enters expansion piece bottom, pushes away
Dynamic screw rod causes expansion piece lower expansion.
In the above-mentioned portable installation swell fixture of square head, the surface of the screw rod is provided with tapping screw thread, described
The inner surface of expansion piece bottom is provided with the internal thread to match with tapping screw thread.
In the above-mentioned portable installation swell fixture of square head, the cross section of the nut vertical centre axis is pros
Shape, the upper surface center of nut offer circular groove.When without using projectile, user can be gripped by instruments such as spanners
Nut, to realize tightening and dismantling for screw, because cross section for the screw cap of square structure is not easy to be worn or destroyed, carry
The high service life of screw, while circular groove is set up, the making raw material of screw cap can be reduced, reduce production cost.
In the above-mentioned portable installation swell fixture of square head, the projectile and expansion piece are all made up of plastic material.
Make projectile and expansion piece made of plastic, it is in light weight, it is convenient for carrying, while reduce production cost.
Compared with prior art, the utility model has the following advantages that：
1st, by setting projectile on screw, reduce dependence of the screw to instruments such as spanners, play the work of replacement
With structure is novel, simple and practical, facilitates screw to install, improves service efficiency.
2nd, expansion piece is enclosed on screw rod, is expanded by projectile, is complemented each other, quick practical, at the same expansion piece and
Projectile is working of plastics, light weight, is convenient for carrying, and reduces production cost.
Brief description of the drawings
Fig. 1 is structure sectional view of the present utility model；
Fig. 2 is the structural representation of the utility model screw.
In figure, 1, nut；11st, groove；2nd, screw rod；3rd, connecting rod；4th, head of screw；5th, projectile；51st, cap is promoted；52nd, push away
Enter part top；53rd, in the middle part of projectile；54th, projectile bottom；55th, through hole one；56th, through hole two；6th, expansion piece；61st, on expansion piece
Portion；62nd, expansion piece bottom；7th, strengthening segment.
Embodiment
It is specific embodiment of the utility model and with reference to accompanying drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these embodiments.
As depicted in figs. 1 and 2, the portable installation swell fixture of square head, including nut 1 and screw rod 2, nut 1 and screw rod 2 it
Between be provided with the connecting rod 3 of cylindrical shape, the diameter of section of connecting rod 3 is identical with the diameter of section of screw rod 2, under screw rod 2
End is provided with head of screw 4, and connecting rod 3 is provided with projectile 5, and expansion piece 6 is cased with screw rod 2, and projectile 5 includes promoting cap 51, pushed away
Enter part top 52, projectile middle part 53 and projectile bottom 54, promote the diameter of section of cap 51 to be more than cutting for projectile top 52
Face diameter, the diameter of section on projectile top 52 are more than in the middle part of projectile 53 diameter of section, and the section at projectile middle part 53 is straight
Footpath is more than the diameter of section of projectile bottom 54, promote the upper surface center of cap 51, in the middle part of projectile 53 upper surface center and
The upper surface center on projectile top 52 is provided with the through hole 1 that matches with the cross sectional shape of nut 1, projectile bottom 54 it is upper
End face center is provided with the through hole 2 56 that matches with the cross sectional shape diameter of connecting rod 3, through hole 1 be connected with through hole 2 56 and
Through projectile 5.
The strengthening segment 7 of taper, the upper end of strengthening segment 7 connection projectile are provided with the middle part of projectile between 53 and projectile bottom 54
The lower end at middle part 53, the upper end of the lower end connection projectile bottom 54 of strengthening segment 7, the upper end cross-section diameter of strengthening segment 7 is with promoting
53 diameter of section is identical in the middle part of part, and the lower end cross-section diameter of strengthening segment 7 is identical with the diameter of section of projectile bottom 54, through hole
One 55 lower surface and the upper surface of through hole 2 56 are each provided in strengthening segment 7.By setting strengthening segment 7, projectile 5 is improved
Bulk strength, while nut 1 is located in strengthening segment 7, improves steadiness of the screw in projectile 5.
Promote cap 51 to be located at the upper end on projectile top 52, promote cap 51 for hemispherical and away from the projectile top
52 one side is arc surface, promotes cap 51 upper surface to be provided with several arc stiffeners, and each arc stiffener is to promote cap 51
The center of circle centered on be uniformly arranged in a ring.Cap 51 is promoted by setting, facilitates the service efficiency of projectile 5, sets arc to add
Strong bar effectively raises the intensity for promoting cap 51, while reduces production cost.
Cap 51, projectile top 52, projectile middle part 53 and projectile bottom 54 is promoted to be integrally formed.
Expansion piece 6 includes expansion piece top 61 and expansion piece bottom 62, expansion piece top 61 and the one of expansion piece bottom 62
Shaping；The section of expansion piece top 61 is annular, and the inner ring diameter of section on expansion piece top 61 and the section of projectile bottom 54 are straight
Footpath is identical, and the outer ring diameter of section on expansion piece top 61 is less than in the middle part of projectile 53 diameter of section, the length on expansion piece top 61
Degree is shorter than the length of projectile bottom 54.When using projectile 5, projectile bottom 54 enters expansion piece top 61, pushes away simultaneously
Enter part bottom 54 and grow the part on expansion piece top 61 to enter expansion piece bottom 62, lead-screw 2 make it that expansion piece bottom 62 is swollen
It is swollen.
The surface of screw rod 2 is provided with tapping screw thread, and the inner surface of expansion piece bottom 62 is provided with what is matched with tapping screw thread
Internal thread.
The cross section of the vertical centre axis of nut 1 is square, and the upper surface center of nut 1 offers circular groove 11.
When without using projectile 5, user can grip nut 1 by instruments such as spanners, to realize tightening and dismantling for screw, due to
Cross section is not easy to be worn or destroyed for the screw cap of square structure, improves the service life of screw, while set up circle
Groove 11, the making raw material of screw cap can be reduced, reduce production cost.
Projectile 5 and expansion piece 6 are all made up of plastic material.Make projectile 5 and expansion piece 6 made of plastic, it is in light weight,
It is convenient for carrying, while reduces production cost.
Screw passes sequentially through the through hole 1 and through hole 2 56 of projectile 5, while nut 1 is fixed on through hole 1, even
Extension bar 3 is fixed on through hole 2 56 so that screw is fixed on projectile 5, while screw rod 2 stretches out projectile 5 and is cased with expanding
Part 6, by projectile 5 screw rod 2 can be driven to allow expansion piece 6 to expand, instead of the instruments such as nut, spanner, it is simple and practical, it is easy to
Carry, improve the installation effectiveness and service efficiency of screw.
Specific embodiment described herein is only to the utility model spirit explanation for example.The utility model institute
Category those skilled in the art can make various modifications or supplement to described specific embodiment or using similar
Mode substitute, but without departing from spirit of the present utility model or surmount scope defined in appended claims.
Although nut 1, groove 11, screw rod 2, connecting rod 3, head of screw 4, projectile 5, propulsion cap have more been used herein
51st, projectile top 52,53, projectile bottom 54 in the middle part of projectile, through hole 1, through hole 2 56, expansion piece 6, on expansion piece
The terms such as portion 61, expansion piece bottom 62, strengthening segment 7, but it is not precluded from the possibility using other terms.Using these terms only
Merely to more easily describe and explain essence of the present utility model；Being construed as any additional limitation is all
Disagreed with the utility model spirit.
Claims (9)
1. the portable installation swell fixture of square head, including nut (1) and screw rod (2), set between the nut (1) and screw rod (2)
The connecting rod (3) of cylindrical shape is equipped with, the diameter of section of the connecting rod (3) is identical with the diameter of section of screw rod (2), described
The lower end of screw rod (2) is provided with head of screw (4), it is characterised in that the connecting rod (3) is provided with projectile (5), the screw rod
(2) expansion piece (6) is cased with, the projectile (5) includes promoting cap (51), projectile top (52), projectile middle part (53)
With projectile bottom (54), the diameter of section for promoting cap (51) is more than the diameter of section of projectile top (52), described to push away
The diameter of section for entering part top (52) is more than the diameter of section of (53) in the middle part of projectile, and the section of the projectile middle part (53) is straight
Footpath is more than the diameter of section of projectile bottom (54), it is described promote the upper surface center of cap (51), (53) is upper in the middle part of projectile
The upper surface center of end face center and projectile top (52) is provided with the through hole one (55) to match with nut (1) cross sectional shape,
The upper surface center of the projectile bottom (54) is provided with the through hole two (56) to match with connecting rod (3) cross sectional shape diameter,
The through hole one (55) is connected with through hole two (56) and runs through projectile (5).
2. the portable installation swell fixture of square head according to claim 1, it is characterised in that in the middle part of the projectile (53)
The strengthening segment (7) of taper is provided between projectile bottom (54), strengthening segment (7) the upper end connection projectile middle part (53)
Lower end, the upper end of lower end connection projectile bottom (54) of the strengthening segment (7), the upper end cross-section diameter of the strengthening segment (7)
It is identical with the diameter of section of (53) in the middle part of projectile, lower end cross-section diameter and the projectile bottom (54) of the strengthening segment (7)
Diameter of section is identical, and the lower surface of the through hole one (55) and the upper surface of through hole two (56) are each provided in strengthening segment (7).
3. the portable installation swell fixture of square head according to claim 1, it is characterised in that the propulsion cap (51) is located at
The upper end on projectile top (52), it is described to promote cap (51) be hemispherical and in the one side of the remote projectile top (52) be
Arc surface, described propulsion cap (51) upper surface are provided with several arc stiffeners, and each arc stiffener is to promote cap
(51) it is uniformly arranged in a ring centered on the center of circle.
4. the portable installation swell fixture of square head according to claim 1 or 2 or 3, it is characterised in that the propulsion cap
(51), projectile top (52), projectile middle part (53) and projectile bottom (54) are integrally formed.
5. the portable installation swell fixture of square head according to claim 1, it is characterised in that the expansion piece (6) includes
Expansion piece top (61) and expansion piece bottom (62), the expansion piece top (61) and expansion piece bottom (62) are integrally formed.
6. the portable installation swell fixture of square head according to claim 5, it is characterised in that the expansion piece top (61)
Section is annular, and the inner ring diameter of section of the expansion piece top (61) is identical with the diameter of section of projectile bottom (54), institute
The outer ring diameter of section for stating expansion piece top (61) is less than the diameter of section of (53) in the middle part of projectile, the expansion piece top (61)
The length for being shorter in length than projectile bottom (54).
7. the portable installation swell fixture of square head according to claim 5, it is characterised in that the surface of the screw rod (2)
Tapping screw thread is provided with, the inner surface of described expansion piece bottom (62) is provided with the internal thread to match with tapping screw thread.
8. the portable installation swell fixture of square head according to claim 1, it is characterised in that during the nut (1) is vertical
The cross section of mandrel line is square, and the upper surface center of nut (1) offers circular groove (11).
9. the portable installation swell fixture of square head according to claim 1, it is characterised in that the projectile (5) and swollen
Swollen part (6) is all made up of plastic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720598087.6U CN206754093U (en) | 2017-05-26 | 2017-05-26 | The portable installation swell fixture of square head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720598087.6U CN206754093U (en) | 2017-05-26 | 2017-05-26 | The portable installation swell fixture of square head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206754093U true CN206754093U (en) | 2017-12-15 |
Family
ID=60619286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720598087.6U Expired - Fee Related CN206754093U (en) | 2017-05-26 | 2017-05-26 | The portable installation swell fixture of square head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206754093U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022077691A1 (en) * | 2020-10-13 | 2022-04-21 | 苏州科逸住宅设备股份有限公司 | Expansion screw for wall plate |
-
2017
- 2017-05-26 CN CN201720598087.6U patent/CN206754093U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022077691A1 (en) * | 2020-10-13 | 2022-04-21 | 苏州科逸住宅设备股份有限公司 | Expansion screw for wall plate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171215 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |