CN202646291U - Lengthened screw - Google Patents
Lengthened screw Download PDFInfo
- Publication number
- CN202646291U CN202646291U CN 201220045894 CN201220045894U CN202646291U CN 202646291 U CN202646291 U CN 202646291U CN 201220045894 CN201220045894 CN 201220045894 CN 201220045894 U CN201220045894 U CN 201220045894U CN 202646291 U CN202646291 U CN 202646291U
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- CN
- China
- Prior art keywords
- screw
- blk
- pan
- casting mold
- utility
- 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 - Lifetime
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Abstract
The utility model relates to a lengthened screw which is used for fixing a casting mold to a radiating fin matched with the casting mold. The specification of the lengthened screw ranges from (6-32X5/8) to (6-32X3/4). Slipping is easy to cause due to the fact that threads, which are matched with a casting mold, of an existing screw for fixing a radiating fin, are few when the casting mold is assembled. The screw has threads with the specifications the same as those of the existing screw, but is longer than the existing screw, for example, an original screw with the specification of Screw 6-32X5/8PHIL PAN HD BLK is replaced by the screw with the specification of Screw 6-32X11/16PHIL PAN HD BLK. As tests prove that if an existing screw with the specification of Screw 6-32X3/4PHIL PAN HD BLK is used for a production line, the screw can extend out of the bottom of the casting mold after being screwed down and interfere with other parts, only the screw with the specification of Screw 6-32X11/16PHIL PAN HD BLK can not only meet the requirement on thread slipping prevention, but also prevent from interfering with the other parts.
Description
Technical field
The utility model relates to a kind of screw, particularly relates to a kind of un-slipped requirement of screw thread of can satisfying in the mould assembly process, can not affect again the long screw that adds of other part.
Background technique
At present general scyewed joint has following four kinds of fundamental types:
1. Bolt Connection: be characterized in coupled all thinner, through hole processed (not positive thread) thereon.Connect with bolt, nut, simple in structure, mounting or dismounting are convenient, (can both sides assembling).Use: coupled thickness is all little, is not subjected to coupled materials limitations, allows often to dismantle, and is widely used.
2. stud connects: be characterized in one of coupled thicker, blind hole processed thereon, and on blind hole positive thread.Thin through hole processed is without screw thread.Adding nut with stud connects.Allow repeatedly to install and remove and do not damage coupled.Use: be generally used for one of coupled too thick, the inconvenience perforation, structural requirement is compact, must adopt connection or often mounting or dismounting place of blind hole.
3. screw attachment: be characterized in need not using nut, screw passed one coupled hole, screw in another tapped hole of coupled.(simpler than stud on the structure).Use: one of coupled too thick, and the frequent occasion of mounting or dismounting not.
4. Cock screw connects: be characterized in utilizing Cock screw to screw in one in addition in the tapped hole of part, and withstand the surface of another part or head in the pit of this part with end.Use: fix the relative position of two parts, and can transmit little power or torque.
The model utility content
For the problems referred to above, main purpose of the present utility model is to provide a kind of un-slipped requirement of screw thread of can satisfying in the mould assembly process, can not affect again the long screw that adds of other part.
The utility model solves above-mentioned technical problem by following technical proposals: a kind of long screw that adds, described add the long screw stationary die and with the supporting radiating fin of mold, the described specification limit that adds long screw is: (6-32*5/8)-(6-32*3/4).
In specific embodiment of the utility model, the described specification that adds long screw is 6-32*11/16.
Positive progressive effect of the present utility model is: the long screw that adds that the utility model provides has the following advantages: in the mold assembly process, because the screw thread that the screw of fixing cooling fins and mold cooperate is less, stripped thread occurs easily.Screw is replaced with screw thread specification of the same race, the screw that length is slightly long, such as original screw specification be: Screw 6-32*5/8PHIL PAN HD BLK, changing existing screw specification into is: Screw6-32*11/16PHIL PAN HD BLK is through test, if selecting and producing the existing specification of line is Screw6-32*3/4PHIL PAN HD BLK screw, can exceed the bottom of mold behind the screw tightening, hinder other part.Only have Screw 6-32*11/16PHIL PAN HD BLK can satisfy the un-slipped requirement of screw thread, can not affect other part again.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Provide the utility model preferred embodiment below in conjunction with accompanying drawing, to describe the technical solution of the utility model in detail.
Fig. 1 is structural representation of the present utility model, and as shown in Figure 1, the utility model comprises the elongated portion 2 below screw body 1 and the screw body, in the mold assembly process, because the screw thread that the screw of fixing cooling fins and mold cooperate is less, stripped thread occurs easily.Screw is replaced with screw thread specification of the same race, the screw that length is slightly long, such as original screw specification be: Screw 6-32*5/8PHIL PAN HD BLK, changing existing screw specification into is: Screw 6-32*11/16PHIL PAN HD BLK is through test, if selecting and producing the existing specification of line is Screw 6-32*3/4PHIL PAN HD BLK screw, can exceed the bottom of mold behind the screw tightening, hinder other part.Only have Screw 6-32*11/16PHIL PAN HD BLK can satisfy the un-slipped requirement of screw thread, can not affect other part again.
Above demonstration and described basic principle of the present utility model and major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications; these changes and improvements all fall in claimed the utility model scope, and the claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (2)
1. one kind adds long screw, described add the long screw stationary die and with the supporting radiating fin of mold, it is characterized in that: the described specification limit that adds long screw is: (6-32*5/8)-(6-32*3/4).
2. the long screw that adds according to claim 1, it is characterized in that: the described specification that adds long screw is 6-32*11/16.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220045894 CN202646291U (en) | 2012-02-13 | 2012-02-13 | Lengthened screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220045894 CN202646291U (en) | 2012-02-13 | 2012-02-13 | Lengthened screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202646291U true CN202646291U (en) | 2013-01-02 |
Family
ID=47415407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220045894 Expired - Lifetime CN202646291U (en) | 2012-02-13 | 2012-02-13 | Lengthened screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202646291U (en) |
-
2012
- 2012-02-13 CN CN 201220045894 patent/CN202646291U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130102 |
|
| CX01 | Expiry of patent term |