CN201107019Y - Expandable seal blasting cap - Google Patents
Expandable seal blasting cap Download PDFInfo
- Publication number
- CN201107019Y CN201107019Y CNU2007203054954U CN200720305495U CN201107019Y CN 201107019 Y CN201107019 Y CN 201107019Y CN U2007203054954 U CNU2007203054954 U CN U2007203054954U CN 200720305495 U CN200720305495 U CN 200720305495U CN 201107019 Y CN201107019 Y CN 201107019Y
- Authority
- CN
- China
- Prior art keywords
- detonator
- shell
- sealing plug
- expansion
- annular lug
- 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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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B3/00—Blasting cartridges, i.e. case and explosive
- F42B3/10—Initiators therefor
- F42B3/12—Bridge initiators
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Air Bags (AREA)
Abstract
The utility model relates to an inflated sealing detonator and consists of a detonator shell and a sealing plug inserted into the detonator shell. The section of the sealing plug inserted into the detonator shell is provided with a plurality of annular lug bosses, the annular lug bosses lean backward, the longitudinal section of the annular lug boss can take the shape of a tooth, a semicircle or a sheet, and the outside diameter of the annular lug boss in a natural state is slightly larger than the inside diameter of the detonator shell. After inserted into the detonator shell, the annular lug boss is pressed against the inner wall of the detonator shell through an elastic deformation so as to be firmly connected with the detonator shell and form a reliable sealing. Air isolation is formed between adjacent annular lug bosses and thus reliable sealability is formed to prevent damp. The inflated sealing detonator achieves the goals of simplifying the process flow, improving the work efficiency and saving raw materials and has the advantages of excellent retreat resistance, sealability and advance prevention as well as firm integral structure.
Description
Technical field
The utility model relates to a kind of expansion and seals detonator, is applicable to the detonator that various tubular materials are made, is specially adapted to the delay electric detonator by the lead pipe powder charge.
Background technology
Existing detonator, comprise shell and the sealing plug that is inserted on the shell, shell with the sealing between the sealing plug be with shell through squeezing, block, contract or sticking sealing, this sealing mode can only be done local involution, so can not effectively guarantee its fastness and sealing, easily cause loosening, be shifted, take off head, phenomenon such as make moist, cause potential safety hazard to explosion, and have manufacturing equipment complexity, complex production process, finished product assembling difficulty, defectives such as waste raw material.
The utility model content
For overcoming the above-mentioned defective of prior art, the utility model provides a kind of expansion to seal detonator, this detonator has stronger steadiness and reliable sealing, can prevent from effectively to seal to become flexible and make moist with detonator, and technological process is simple, easy to assembly fast, production efficiency is high, also helps the saving raw material.
The utility model realizes that the technical scheme of above-mentioned purpose is: detonator is sealed in a kind of expansion, comprises shell and the sealing plug that is inserted on the shell, and the part that described sealing plug is inserted in the shell is provided with some annular protrusions
Described each annular protrusion can recede usually.
The longitudinal section of described each annular protrusion can be profile of tooth.
The edge, longitudinal section of described each annular protrusion can be level and smooth shaped form.
The longitudinal section of described each annular protrusion can also be sheet shape.
Preferred 2 or 3 of the quantity of described annular protrusion.
The back of described the last annular protrusion of sealing plug is provided with annular groove, and described shell is provided with the some positioning convex that embed this annular groove.
The fuse that described sealing plug is equipped with two battery lead plates and connects with each battery lead plate respectively.
Described battery lead plate is provided with the plastics fixed block that connects two electrodes, and described two battery lead plate front ends are connected with the bridge silk and are provided with the ignition charge that is wrapped on the bridge silk.
The rear end of described sealing plug is provided with annular lip.
The beneficial effects of the utility model are: because sealing plug is provided with some sweptback annular protrusions, be easy to the forward assembling of detonator, and play effectively stable and retaining effect; Because a plurality of annular protrusions can be set, between each annular protrusion, form air seal, played good moisture-proof role, also saved materials funds simultaneously; Because sealing and steadiness between sealing plug and the shell are good, as long as rush to the location that the positioning convex of several embedding sealing plug annular grooves just can be realized sealing plug at the rear portion of shell, carry out reducing in the shell rear end relatively, simplified production equipment, made things convenient for operation; Because the sealing plug rear end is provided with annular lip, guaranteed to hinder the location.
Description of drawings
Fig. 1 is the generalized section of the utility model detonator.
The specific embodiment
Referring to Fig. 1, shell 4 of the present utility model is the tubulose of an end (rear end) opening, corresponding gunpowder 7 is housed in it, its openend is plugged with sealing plug 9, the part that sealing plug inserts on the shell is provided with some annular protrusions 3, the external diameter of described annular protrusion should be slightly larger than the shell internal diameter, is pressed on together with inner wall of tube shell by elastic deformation after inserting shell, so that with firm the linking together and form reliable sealing of shell.Annular lip 1 retaining of sealing plug rear end has realized hindering the location at the opening part of shell.
Described annular protrusion generally should recede, and when helping installing like this sealing plug is inserted shell and can play effective retaining effect after insertion.
The rear end of described the last annular protrusion of sealing plug is provided with annular groove, stamps out the projection 2 of several these annular grooves of embedding by pressing equipment on shell, can prevent effectively that sealing plug is pulled out, and has strengthened the whole locating effect of detonator.
Described annular protrusion preferred amount is 2 or 3, forms air seal layer 10 between each annular protrusion, has played good moisture-proof role.
Described sealing plug front is provided with battery lead plate 8, by fixed block 5 location, is provided with the ignition charge 6 of parcel bridge silk forwardly, and control system 11 is ignited by going between.
Claims (10)
1. detonator is sealed in an expansion, it is characterized in that comprising shell and the sealing plug that is inserted on the shell, and the part that described sealing plug is inserted in the shell is provided with some annular protrusions.
2. detonator is sealed in expansion as claimed in claim 1, it is characterized in that described each annular protrusion recedes.
3. detonator is sealed in expansion as claimed in claim 2, it is characterized in that the longitudinal section of described each annular protrusion is profile of tooth.
4. detonator is sealed in expansion as claimed in claim 2, and the edge, longitudinal section that it is characterized in that described each annular protrusion is level and smooth shaped form.
5. detonator is sealed in expansion as claimed in claim 2, it is characterized in that the longitudinal section of described each annular protrusion is sheet shape.
6. seal detonator as claim 1,2,3,4 or 5 described expansions, the quantity that it is characterized in that described annular protrusion is 2 or 3.
7. seal detonator as claim 1,2,3,4 or 5 described expansions, it is characterized in that the back of described the last annular protrusion of sealing plug is provided with annular groove, described shell is provided with the some positioning convex that embed this annular groove.
8. seal detonator as claim 1,2,3,4 or 5 described expansions, it is characterized in that the fuse that described sealing plug is equipped with two battery lead plates and connects with each battery lead plate respectively.
9. detonator is sealed in expansion as claimed in claim 8, it is characterized in that described battery lead plate is provided with the plastics fixed block that connects two electrodes, and described two battery lead plate front ends are connected with the bridge silk and are provided with the ignition charge that is wrapped on the bridge silk.
10. seal detonator as expansion as described in the claim 1,2,3,4 or 5, it is characterized in that the rear end of described sealing plug is provided with annular lip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007203054954U CN201107019Y (en) | 2007-11-20 | 2007-11-20 | Expandable seal blasting cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007203054954U CN201107019Y (en) | 2007-11-20 | 2007-11-20 | Expandable seal blasting cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201107019Y true CN201107019Y (en) | 2008-08-27 |
Family
ID=39958825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007203054954U Expired - Lifetime CN201107019Y (en) | 2007-11-20 | 2007-11-20 | Expandable seal blasting cap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201107019Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104101268A (en) * | 2013-04-15 | 2014-10-15 | 北京北方邦杰科技发展有限公司 | Pipe stopper of detonator |
-
2007
- 2007-11-20 CN CNU2007203054954U patent/CN201107019Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104101268A (en) * | 2013-04-15 | 2014-10-15 | 北京北方邦杰科技发展有限公司 | Pipe stopper of detonator |
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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: 20080827 |