CN202493554U - Forward and inverted arc screw thread device used for subway steel die - Google Patents
Forward and inverted arc screw thread device used for subway steel die Download PDFInfo
- Publication number
- CN202493554U CN202493554U CN2012200009498U CN201220000949U CN202493554U CN 202493554 U CN202493554 U CN 202493554U CN 2012200009498 U CN2012200009498 U CN 2012200009498U CN 201220000949 U CN201220000949 U CN 201220000949U CN 202493554 U CN202493554 U CN 202493554U
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- China
- Prior art keywords
- screw
- spiral shell
- shell seat
- breach
- stand
- 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
Links
- 229910000831 Steel Inorganic materials 0.000 title abstract 4
- 239000010959 steel Substances 0.000 title abstract 4
- 238000004080 punching Methods 0.000 claims description 9
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model relates to a screw thread nut, especially relates to a forward and inverted arc screw thread device used for a subway steel die, and belongs to a fitting of a subway steel die. The forward and inverted arc screw thread device comprises an upper screw stand and a lower screw stand. The upper screw stand is provided with an upper screw gap, and the lower screw stand is equipped with a lower screw gap. The upper screw gap and the lower screw gap form a screw hole. Fastening strips are respectively disposed on two side ends of the upper screw stand. The fastening strips and the upper screw stand form a lower screw stand matching gap. The lower screw stand is arranged in the lower screw stand matching gap. The forward and inverted arc screw thread device used for a subway steel die is simple in structure, high in assembling precision and fine in operation performance.
Description
Technical field
The utility model patent relates to a kind of screw nut, relates in particular to a kind of positive and negative circular arc screw device that is used for the subway punching block, belongs to the accessory of subway punching block.
Background technique
Present existing screw nut, and assembly precision is low, and the effect that can reach during use is undesirable.
Summary of the invention
The utility model mainly is to solve the deficiency that exists in the existing technology, provides a kind of simple in structure, and the high positive and negative circular arc screw device that is used for the subway punching block of assembly precision.
The above-mentioned technical problem of the utility model mainly is able to solve through following technical proposals:
A kind of positive and negative circular arc screw device that is used for the subway punching block; Comprise spiral shell seat and following spiral shell seat, be provided with the screw breach in the described last spiral shell seat, be provided with down the screw breach in the described following spiral shell seat; The described screw breach of going up forms screw with following screw breach; The described two side ends that goes up the spiral shell seat is respectively equipped with bracket, and described bracket and last spiral shell seat form down the spiral shell seat and connect breach, and described spiral shell seat down connects and is provided with down the spiral shell seat in the breach.
This structure assembly precision is high, good operation performance, and using effect is outstanding.
As preferably, the described spiral shell seat of going up is respectively equipped with following spiral shell seat and connects screw, is provided with fastening screw in the described bracket.
The utility model is provided for the positive and negative circular arc screw device of subway punching block, and is simple in structure, and assembly precision is high, good operation performance.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Embodiment
Pass through embodiment below, and combine accompanying drawing, do further bright specifically the technological scheme of the utility model.
Embodiment 1: as shown in Figure 1, a kind of positive and negative circular arc screw device that is used for the subway punching block comprises spiral shell seat 1 and following spiral shell seat 2; Described going up in the spiral shell seat 1 is provided with screw breach 3; Be provided with down screw breach 4 in the spiral shell seat 2 under described, the described screw breach 3 of going up forms screws with following screw breach 4, and the described two side ends that goes up spiral shell seat 1 is respectively equipped with bracket 5; Described bracket 5 forms down with last spiral shell seat 1, and the spiral shell seat connects breach 6; Described spiral shell seat down connects and is provided with down spiral shell seat 2 in the breach 6, and described upward spiral shell seat 1 is respectively equipped with following spiral shell seat 2 and connects screw 7, is provided with fastening screw 8 in the described bracket 5.
Claims (2)
1. positive and negative circular arc screw device that is used for the subway punching block; It is characterized in that: comprise spiral shell seat (1) and following spiral shell seat (2); Described going up in the spiral shell seat (1) is provided with screw breach (3); Be provided with down screw breach (4) in the spiral shell seat (2) under described, described screw breach (3) and following screw breach (4) the formation screw gone up, the described two side ends that goes up spiral shell seat (1) is respectively equipped with bracket (5); The spiral shell seat connected breach (6) under described bracket (5) formed with last spiral shell seat (1), and described spiral shell seat down connects and is provided with down spiral shell seat (2) in the breach (6).
2. the positive and negative circular arc screw device that is used for the subway punching block according to claim 1 is characterized in that: described upward spiral shell seat (1) and following spiral shell seat (2) are respectively equipped with and connect screw (7), are provided with fastening screw (8) in the described bracket (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200009498U CN202493554U (en) | 2012-01-04 | 2012-01-04 | Forward and inverted arc screw thread device used for subway steel die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200009498U CN202493554U (en) | 2012-01-04 | 2012-01-04 | Forward and inverted arc screw thread device used for subway steel die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202493554U true CN202493554U (en) | 2012-10-17 |
Family
ID=46999786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200009498U Expired - Fee Related CN202493554U (en) | 2012-01-04 | 2012-01-04 | Forward and inverted arc screw thread device used for subway steel die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202493554U (en) |
-
2012
- 2012-01-04 CN CN2012200009498U patent/CN202493554U/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: 20121017 Termination date: 20130104 |