CN204628210U - Column special shaped screw bolt - Google Patents
Column special shaped screw bolt Download PDFInfo
- Publication number
- CN204628210U CN204628210U CN201520190931.2U CN201520190931U CN204628210U CN 204628210 U CN204628210 U CN 204628210U CN 201520190931 U CN201520190931 U CN 201520190931U CN 204628210 U CN204628210 U CN 204628210U
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- CN
- China
- Prior art keywords
- thread section
- cylindrical object
- screw bolt
- shaped screw
- special shaped
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a kind of column special shaped screw bolt.It solve the technical problems such as existing bolt join strength is low.Comprise the first Cylindrical object, the first thread section, the first mounting hole, taper, ring-shaped step, the second Cylindrical object, the second thread section and the 3rd thread section, annular solid is formed between second thread section and the 3rd thread section, and in the middle part of annular solid, be provided with the second mounting hole that radial direction runs through annular solid, the length scale of the second thread section is greater than the length scale of the 3rd thread section, and the hand of spiral of the second thread section is contrary with the hand of spiral of the 3rd thread section.Advantage is: reasonable in design, and structure is simple, good stability, and join strength is high, three parts can be connected and two parts can be in contact condition, and easy for installation, not easily occurs slip phenomenon.
Description
Technical field
The utility model belongs to mechanical equipment technical field, especially relates to a kind of column special shaped screw bolt.
Background technique
Bolt is by head and a screw rod class fastening piece dimerous, needs and nut screw connection, for being fastenedly connected the part of two or more with through hole.But common bolt is used for many employings stud bolt when two or more parts connect, it is contactless connected that such bolt is used for parts, but existing stud bolt is then inapplicable when contacting with each other for needs parts, in addition, existing bolt also also exists: install inconvenience, join strength is low, easily and nut the problem such as to get loose.
In order to solve prior art Problems existing, people have carried out long-term exploration, propose solution miscellaneous.Such as, Chinese patent literature discloses a kind of stud bolt [application number: 201220565022.9], comprise one first threaded stem, a roofbolt and one second threaded stem, described first threaded stem, roofbolt are sequentially connected with the second threaded stem, described first threaded stem, roofbolt and the second threaded stem are concentric, the diameter of described first threaded stem is greater than the diameter of described second threaded stem, and the diameter of described second threaded stem is greater than the diameter of described roofbolt.
Such scheme improves the subproblem that prior art exists to a certain extent, the problem that such as, when two parts connect join strength is low, but still still also exist in scheme: Applicable scope is little, three cannot be applicable to be connected with upper-part, easily and nut get loose, the technical problem such as cannot to contact between parts.
Summary of the invention
The purpose of this utility model is for the problems referred to above, provides a kind of reasonable in design, the column special shaped screw bolt of good stability.
For achieving the above object, the utility model have employed following technical proposal: this column special shaped screw bolt, comprise cylindrical first Cylindrical object, it is characterized in that, the first described Cylindrical object is the flat column structure that both sides have the clamping plane caved inward respectively, the first described Cylindrical object is circumferentially with the first thread section, and first described Cylindrical object one end radial direction is provided with the first mounting hole running through clamping plane, the other end is connected with the taper coaxially arranged with the first Cylindrical object, between described taper and the first Cylindrical object, there is ring-shaped step, and described taper becomes large gradually from diameter to the other end diameter of the one end be connected with the first Cylindrical object, described taper end is connected with the second Cylindrical object be coaxially connected with the first Cylindrical object, and the second described Cylindrical object is provided with the second thread section and the 3rd thread section near one end of taper successively to the other end, annular solid is formed between the second described thread section and the 3rd thread section, and in the middle part of described annular solid, be provided with the second mounting hole that radial direction runs through annular solid, the length scale of the second described thread section is greater than the length scale of the 3rd thread section, and the hand of spiral of the second described thread section is contrary with the hand of spiral of the 3rd thread section.During use, two parts can be connected with the 3rd thread section by the second thread section, and two parts can respectively to annular solid near and contact with each other, first thread section may be used for connection the 3rd parts, make this bolt three parts can be connected like this, and clamping plane can improve bolted stability, join strength is high.
In above-mentioned column special shaped screw bolt, described clamping plane is symmetrically set, and the first described mounting hole two ends are respectively in the middle part of clamping plane one end.
In above-mentioned column special shaped screw bolt, described ring-shaped step is tapered, and one end of being connected with the first Cylindrical object of described ring-shaped step to the diameter of the other end becomes large gradually.
In above-mentioned column special shaped screw bolt, the ratio of the second described thread section length scale and the length scale of the 3rd thread section is 2-4:1.Preferably, ratio is here 3:1.
In above-mentioned column special shaped screw bolt, described clamping plane axial length direction is mutually vertical with the bearing of trend of the first mounting hole.Pin can be worn in the first mounting hole thus prevent from occurring slip phenomenon when connecting.
In above-mentioned column special shaped screw bolt, described clamping plane is rectangular, any one structure in triangle and isosceles trapezoid.Preferably, clamping plane is here rectangular.
In above-mentioned column special shaped screw bolt, the cross-sectional diameter size of the first described Cylindrical object is greater than the cross-sectional diameter size of the second Cylindrical object.
In above-mentioned column special shaped screw bolt, the second described Cylindrical object end has tapered portion.
Compared with prior art, the advantage of this column special shaped screw bolt is: reasonable in design, and structure is simple, good stability, and join strength is high, three parts can be connected and two parts can be in contact condition, and easy for installation, not easily occurs slip phenomenon.
Accompanying drawing explanation
Fig. 1 is the structural representation that the utility model provides.
In figure, the first Cylindrical object 1, clamping plane 11, first thread section 12, first mounting hole 13, taper 2, ring-shaped step 3, second Cylindrical object 4, second thread section 41, the 3rd thread section 42, annular solid 43, second mounting hole 44, tapered portion 45.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in more detail.
As shown in Figure 1, this column special shaped screw bolt, comprise cylindrical first Cylindrical object 1, first Cylindrical object 1 has the flat column structure of the clamping plane 11 caved inward respectively in both sides, first Cylindrical object 1 is circumferentially with the first thread section 12, and first Cylindrical object 1 one end radial direction is provided with the first mounting hole 13 running through clamping plane 11, the other end is connected with the coaxial taper 2 arranged with the first Cylindrical object 1, between taper 2 and the first Cylindrical object 1, there is ring-shaped step 3, and taper 2 becomes large gradually from diameter to the other end diameter of the one end be connected with the first Cylindrical object 1, taper 2 end is connected with second Cylindrical object 4 that be connected coaxial with the first Cylindrical object 1, and the second Cylindrical object 4 is provided with the second thread section 41 and the 3rd thread section 42 near one end of taper 2 successively to the other end, annular solid 43 is formed between second thread section 41 and the 3rd thread section 42, and in the middle part of annular solid 43, be provided with the second mounting hole 44 that radial direction runs through annular solid 43, the length scale of the second thread section 41 is greater than the length scale of the 3rd thread section 42, and the hand of spiral of the second thread section 41 is contrary with the hand of spiral of the 3rd thread section 42, during use, two parts can be connected with the 3rd thread section 42 by the second thread section 41, and two parts can respectively to annular solid 43 near and contact with each other, first thread section 12 may be used for connection the 3rd parts, make this bolt three parts can be connected like this, and clamping plane 11 can improve bolted stability, join strength is high.
Particularly, the clamping plane 11 in the present embodiment is symmetrically set, and the first mounting hole 13 two ends are respectively in the middle part of clamping plane 11 one end, can wear pin like this thus prevent from occurring slip phenomenon when connecting in the first mounting hole 13.Preferably, the ring-shaped step 3 in the present embodiment is tapered, and one end of being connected with the first Cylindrical object 1 of ring-shaped step 3 to the diameter of the other end becomes large gradually.Wherein, the ratio of the second thread section 41 length scale here and the length scale of the 3rd thread section 42 is 2-4:1, and preferably, ratio is here 3:1.
Further, clamping plane 11 axial length direction is here mutually vertical with the bearing of trend of the first mounting hole 13.Wherein, clamping plane 11 is rectangular, any one structure in triangle and isosceles trapezoid, and preferably, clamping plane 11 is here rectangular.Wherein, the cross-sectional diameter size of the first Cylindrical object 1 is greater than the cross-sectional diameter size of the second Cylindrical object 4.In addition, for the ease of installing, the second Cylindrical object 4 end here has tapered portion 45.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present utility model or surmount the scope that appended claims defines.
Although more employ the terms such as the first Cylindrical object 1, clamping plane 11, first thread section 12, first mounting hole 13, taper 2, ring-shaped step 3, second Cylindrical object 4, second thread section 41, the 3rd thread section 42, annular solid 43, second mounting hole 44, tapered portion 45 herein, do not get rid of the possibility using other term.Use these terms to be only used to describe and explain essence of the present utility model more easily, the restriction that they are construed to any one additional is all contrary with the utility model spirit.
Claims (8)
1. a column special shaped screw bolt, comprise cylindrical first Cylindrical object (1), it is characterized in that, described the first Cylindrical object (1) has the flat column structure of the clamping plane (11) caved inward respectively in both sides, described the first Cylindrical object (1) is circumferentially with the first thread section (12), and described the first Cylindrical object (1) one end radial direction is provided with the first mounting hole (13) running through clamping plane (11), the other end is connected with the coaxial taper (2) arranged with the first Cylindrical object (1), between described taper (2) and the first Cylindrical object (1), there is ring-shaped step (3), and described taper (2) becomes large gradually from diameter to the other end diameter of the one end be connected with the first Cylindrical object (1), described taper (2) end is connected with second Cylindrical object (4) that be connected coaxial with the first Cylindrical object (1), and described the second Cylindrical object (4) is provided with the second thread section (41) and the 3rd thread section (42) successively near one end to the other end of taper (2), annular solid (43) is formed between described the second thread section (41) and the 3rd thread section (42), and described annular solid (43) middle part is provided with the second mounting hole (44) that radial direction runs through annular solid (43), the length scale of described the second thread section (41) is greater than the length scale of the 3rd thread section (42), and the hand of spiral of described the second thread section (41) is contrary with the hand of spiral of the 3rd thread section (42).
2. column special shaped screw bolt according to claim 1, it is characterized in that, described clamping plane (11) is symmetrically set, and described the first mounting hole (13) two ends are respectively in the middle part of clamping plane (11) one end.
3. column special shaped screw bolt according to claim 2, it is characterized in that, described ring-shaped step (3) is tapered, and one end of being connected with the first Cylindrical object (1) of described ring-shaped step (3) to the diameter of the other end becomes large gradually.
4. the column special shaped screw bolt according to claim 1 or 2 or 3, is characterized in that, the ratio of the length scale of described the second thread section (41) length scale and the 3rd thread section (42) is (2-4): 1.
5. column special shaped screw bolt according to claim 4, is characterized in that, described clamping plane (11) axial length direction is mutually vertical with the bearing of trend of the first mounting hole (13).
6. column special shaped screw bolt according to claim 5, is characterized in that, described clamping plane (11) is rectangular, any one structure in triangle and isosceles trapezoid.
7. column special shaped screw bolt according to claim 1, is characterized in that, the cross-sectional diameter size of described the first Cylindrical object (1) is greater than the cross-sectional diameter size of the second Cylindrical object (4).
8. column special shaped screw bolt according to claim 7, is characterized in that, described the second Cylindrical object (4) end has tapered portion (45).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520190931.2U CN204628210U (en) | 2015-03-31 | 2015-03-31 | Column special shaped screw bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520190931.2U CN204628210U (en) | 2015-03-31 | 2015-03-31 | Column special shaped screw bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204628210U true CN204628210U (en) | 2015-09-09 |
Family
ID=54047245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520190931.2U Expired - Fee Related CN204628210U (en) | 2015-03-31 | 2015-03-31 | Column special shaped screw bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204628210U (en) |
-
2015
- 2015-03-31 CN CN201520190931.2U patent/CN204628210U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150909 Termination date: 20160331 |