CN202938726U - Collecting-pulling type tamping bar for mine - Google Patents
Collecting-pulling type tamping bar for mine Download PDFInfo
- Publication number
- CN202938726U CN202938726U CN 201220578729 CN201220578729U CN202938726U CN 202938726 U CN202938726 U CN 202938726U CN 201220578729 CN201220578729 CN 201220578729 CN 201220578729 U CN201220578729 U CN 201220578729U CN 202938726 U CN202938726 U CN 202938726U
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- Prior art keywords
- collecting
- pulling type
- mine
- tamping bar
- type tamping
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Abstract
The utility model discloses a collecting-pulling type tamping bar for a mine, and belongs to the field of mechanical equipment for mine. The collecting-pulling type tamping bar comprises a pull rod, wherein the pull rod comprises two or more sleeves which are same in length and are different in diameters and can be sequentially sleeved together, the sleeves can be relatively lengthened and retracted, a limit screw hole is formed in the tail end of the former sleeve of the adjacent sleeves, a limit screw is arranged in the limit screw hole, and a scale line is arranged on the pull rod. The collecting-pulling type tamping bar has a simple structure, is low in cost and convenient in carrying, and is capable of accurately controlling the interval among cartridges during the process of spaced loading in air to ensure that better effect is achieved in bursting; and even if a worker without experiences can well control the interval among the cartridges, and thus the bursting effect is improved.
Description
Technical field
The utility model belongs to the mine equipment apparatus field, particularly a kind of mining Drawing expansion bar.
Background technology
At present, in whole blasting engineering, boring is the heaviest operation, and powder charge is last critical process, and useless hole and inaccurate powder charge all can affect demolition effect or cause a serious accident.Require during powder charge with tamper, powder stick to be escorted into big gun hole and compacting, traditional tamper is all heavier, carry, use and all have inconvenience, due to the down-hole limited space, traditional tamper brings inconvenience for the work of processing borehole, and in air during the powder charge of interval, unfamiliar workman can not accurately control the powder stick spacing, has affected demolition effect.This shows, prior art awaits further improving and improving.
The utility model content
The utility model is the weak point of avoiding above-mentioned prior art to exist, and a kind of mining Drawing expansion bar is provided.
The technical scheme that the utility model adopts is:
A kind of mining Drawing expansion bar, comprise pull bar, above length is identical but the sleeve pipe that can be set in together successively that diameter is different forms by two or two for described pull bar, can relatively elongate and bounce back between described sleeve pipe, the end of the last sleeve pipe in described adjacent casing offers spacing screw, be equipped with stop screw in this spacing screw, be provided with graduation mark on described pull bar.
Owing to having adopted technique scheme, the obtained beneficial effect of the utility model is:
The utility model is simple in structure, with low cost, easy to carry, can accurately control the interval between powder stick during the powder charge of interval in air, make explosion that better effect be arranged, even unfamiliar workman also can well control the powder stick spacing, improved the explosion effect.
Description of drawings
Fig. 1 is front view of the present utility model.
Fig. 2 is side view of the present utility model.
Wherein,
1, sleeve pipe 2, spacing screw 3, stop screw 4, graduation mark
The specific embodiment
The utility model is described in further detail below in conjunction with specific embodiment and accompanying drawing, but the utility model is not limited to these embodiment.
As shown in Figures 1 and 2, a kind of mining Drawing expansion bar, comprise pull bar, above length is identical but the sleeve pipe that can be set in together successively 1 that diameter is different forms by two or two for described pull bar, can relatively elongate and bounce back between described sleeve pipe 1, the end of the last sleeve pipe in described adjacent casing offers spacing screw 2, is equipped with stop screw 3 in this spacing screw 2, is provided with graduation mark 4 on described pull bar.
Pull bar length in the utility model or the number of sleeve pipe 1 can be designed to two or more according to actual needs, and the used time can not bounce back sleeve pipe 1, and is easy to carry.
What need to further illustrate is that specific embodiment described herein is only to spiritual example explanation of the present utility model.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Claims (1)
1. mining Drawing expansion bar, comprise pull bar, it is characterized in that: above length is identical but the sleeve pipe that can be set in together successively that diameter is different forms by two or two for described pull bar, can relatively elongate and bounce back between described sleeve pipe, the end of the last sleeve pipe in described adjacent casing offers spacing screw, be equipped with stop screw in this spacing screw, be provided with graduation mark on described pull bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220578729 CN202938726U (en) | 2012-11-06 | 2012-11-06 | Collecting-pulling type tamping bar for mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220578729 CN202938726U (en) | 2012-11-06 | 2012-11-06 | Collecting-pulling type tamping bar for mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202938726U true CN202938726U (en) | 2013-05-15 |
Family
ID=48322960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220578729 Expired - Fee Related CN202938726U (en) | 2012-11-06 | 2012-11-06 | Collecting-pulling type tamping bar for mine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202938726U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112880497A (en) * | 2021-03-12 | 2021-06-01 | 中铁二十局集团有限公司 | Tunnel smooth blasting method |
-
2012
- 2012-11-06 CN CN 201220578729 patent/CN202938726U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112880497A (en) * | 2021-03-12 | 2021-06-01 | 中铁二十局集团有限公司 | Tunnel smooth blasting method |
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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: 20130515 Termination date: 20131106 |