CN202833550U - Novel Internal-expanding type connection structure for fastening screw - Google Patents
Novel Internal-expanding type connection structure for fastening screw Download PDFInfo
- Publication number
- CN202833550U CN202833550U CN 201220153952 CN201220153952U CN202833550U CN 202833550 U CN202833550 U CN 202833550U CN 201220153952 CN201220153952 CN 201220153952 CN 201220153952 U CN201220153952 U CN 201220153952U CN 202833550 U CN202833550 U CN 202833550U
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- screw
- novel internal
- taper pin
- connection structure
- screw body
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Abstract
A novel internal-expanding type connection structure for fastening screw, includes a screw body (1) which is characterized in that the screw body (1) is provided inside with a cone pin hole (101), and the cone pin hole is provided with a taper pin (2). The screw body (1) is tapped with an external thread. The head of the screw body (1) is formed by an inner hexagonal slot (102), and the centre of the screw body (1) is provided with a groove (103). The novel internal-expanding type connection structure enables the screw to expanse elastically through the expansion effect of a conical cylindrical pin cone, removes the clearance between the threads, and has the advantages of attaching tightly, fixing and positioning, operating conveniently, and saving materials and labor.
Description
Technical field
The utility model relates to the mechanical fastener technical field, specifically puts up with to relate to a kind of novel internal-expansion type fastening screw trip bolt linkage structure that is fixedly connected with for mechanical parts.
Background technique
Screw is that component of machine is fixedly connected with accessory commonly used, but because screw is to rely on screw thread to connect two different component, often there is following shortcoming in this thread connecting mode: the one, and screw has certain gap in the joint, skidding easily, often using weares and teares easily causes stripped thread, thereby reduces the not effect that is connected and fixed of component; The 2nd, screw convex section consumptive material is not only wasted material but also processing technology complexity; The 3rd, the threaded connection place has certain gap to cause not having positioning action, needs the straight pin location during mechanical connection, and the waste resource has improved cost of production.
The model utility content
The purpose of this utility model provides a kind of novel internal-expansion type fastening screw trip bolt linkage structure, establish tapering in the body of screw is designed to, outer threaded cylindrical body, dilating effect by the tapered cylinder pin conical surface makes body of screw elastic expansion, eliminate the gap, fit tightly, fixedly secure and locate, whole screw is easy to operate, uses manpower and material resources sparingly.
Technological scheme
In order to realize above-mentioned technical purpose, the utility model designs a kind of novel internal-expansion type fastening screw trip bolt linkage structure, comprise the body of screw, it is characterized in that: have taper pin-hole in the described body of screw, taper pin is housed in the taper pin-hole, the described body of screw has been attacked outside thread, and body of screw head has interior hex slot, and body of screw middle part has groove.
Described taper pin tapering is less than 10 degree.
Described taper pin has been attacked internal thread.
Beneficial effect
The utility model has overcome certain gap that is threaded at traditional mechanical connection place, can not connect well fastening and the location, and consumables cost is higher, the shortcoming of processes complexity, utilize the expansion of taper pin directly to realize seamless connectivity, can not only connect well machinery and can play the role of positioning, saved simultaneously material, low cost, interests are promoted.
Description of drawings
Accompanying drawing 1 is that the utility model is used for the structural representation that plate connects.
Accompanying drawing 2 is taper pin structural representations in the utility model.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described further.
Shown in attached Fig. 1 and 2, when connecting plate, with the body of screw 1 upper plate and lower plate are coupled together first, the whole body of screw 1 is screwed in the plate interior threaded hole.Body of screw head has interior hex slot 102, and body of screw middle part has groove 103.Taper pin 2 is put in the body of screw 1 and will be tightened in the body of screw 1 taper pin-hole 101 with certain external force, makes the body of screw 1 that elastic strain occur and makes screw thread and the gap between the screw thread on the plate on the body of screw 1 eliminate the effect fixing and location of playing.In the time will dismantling, can first taper pin 2 be taken out, the external force that acts on this moment on the body of screw 1 disappears, and the body of screw 1 recovers deformation; With inner hexagon spanner the body of screw 1 is unloaded at last.
The utility model has overcome certain gap that is threaded at traditional mechanical connection place, can not connect well fastening and the location, and consumables cost is higher, the shortcoming of processes complexity, utilize the expansion of taper pin directly to realize seamless connectivity, can not only connect well machinery and can play the role of positioning, saved simultaneously material, low cost, interests are promoted.
Claims (3)
1. novel internal-expansion type fastening screw trip bolt linkage structure, comprise the body of screw (1), it is characterized in that: have taper pin-hole (101) in the described body of screw (1), taper pin (2) is housed in the taper pin-hole (101), the described body of screw (1) has been attacked outside thread, the body of screw (1) head has interior hex slot (102), and the body of screw (1) middle part has groove (103).
2. a kind of novel internal-expansion type fastening screw trip bolt linkage structure as claimed in claim 1 is characterized in that: described taper pin (2) tapering is less than 10 degree.
3. a kind of novel internal-expansion type fastening screw trip bolt linkage structure as claimed in claim 1, it is characterized in that: described taper pin (2) has been attacked internal thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220153952 CN202833550U (en) | 2012-04-12 | 2012-04-12 | Novel Internal-expanding type connection structure for fastening screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220153952 CN202833550U (en) | 2012-04-12 | 2012-04-12 | Novel Internal-expanding type connection structure for fastening screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202833550U true CN202833550U (en) | 2013-03-27 |
Family
ID=47945263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220153952 Expired - Fee Related CN202833550U (en) | 2012-04-12 | 2012-04-12 | Novel Internal-expanding type connection structure for fastening screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202833550U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103464242A (en) * | 2013-09-26 | 2013-12-25 | 成都市新力设备制造有限责任公司 | Combined roll shaft |
-
2012
- 2012-04-12 CN CN 201220153952 patent/CN202833550U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103464242A (en) * | 2013-09-26 | 2013-12-25 | 成都市新力设备制造有限责任公司 | Combined roll shaft |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20140412 |