CN207936859U - A kind of Single free-face rock blasting angled cut angle control lead angle plate - Google Patents
A kind of Single free-face rock blasting angled cut angle control lead angle plate Download PDFInfo
- Publication number
- CN207936859U CN207936859U CN201820011005.8U CN201820011005U CN207936859U CN 207936859 U CN207936859 U CN 207936859U CN 201820011005 U CN201820011005 U CN 201820011005U CN 207936859 U CN207936859 U CN 207936859U
- Authority
- CN
- China
- Prior art keywords
- plate body
- angle
- plate
- angled cut
- supporting rod
- 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
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Abstract
The utility model patent discloses a kind of Single free-face rock blasting angled cut angle control lead angle plate, supporting rod including upper and lower two boards body, intermediate stretchable, the angel measuring instrument being connected on the plate body of bottom and the engagement groove being present on upper board body side.The top plate body is channel steel, lower part plate body is steel plate, the body of rod of two boards body is telescopic supporting rod above and below the connection of centre, angel measuring instrument is connected to the groove wall angle for determining angle that upper and lower plate body is constituted on lower steel plate using this as angled cut, and engagement groove plays fixed telescopic rod.The utility model patent reasonable design, simple in structure, accurate positioning and cost are relatively low, and the tunnelling that can be used under all kinds of complex environments is applied widely, and implementation easy to spread is with good economic efficiency.
Description
Technical field
The utility model is related to a kind of positioning devices of Single free-face rock blasting slotting, more particularly to a kind of single free
Rock blasting angled cut angle in face controls lead angle plate.
Background technology
When carrying out Single free-face rock excavation operation, this process of blasting rock-broken is particularly important.The effect and matter of explosion
Amount has direct influence for the quality of the effect of muck, supporting, while being also directly related to the safety of rock excavation construction.
In blast working, it is necessary to which the several boreholes of explosion first are that the additional scope of freedom is created in the explosion of subsequent borehole, and the method is known as
" slotting ".
Undermining type is divided into two class of strabismus and straight eye.Angled cut is most common slotting in heading and excavation of foundation pit
Method, borehole and working face oblique, are all suitable for the Cut Blasting of all kinds of rock stratum in the method.Usually according to excavation section
Size and the robustness of rock stratum determine the angle and number of borehole, be typically chosen 6~8 boreholes, be arranged symmetrically, angle is
550~700, powder charge full scale coefficient is about 0.7.Due to its demolition effect ideal, required borehole is also fewer.However
Borehole direction is not easy to grasp, and limitation, the rubble casting distance etc. for excavating section size are all the factors for influencing borehole depth.
Invention content
In view of the above technical problems, the present invention provides a kind of relatively low, easy to carry, the simple in structure angle control of cost and leads
Gusset.
The technical solution of the utility model is：
A kind of Single free-face rock blasting angled cut angle control lead angle plate, including upper and lower two boards body, centre can be stretched
The supporting rod of contracting, the angel measuring instrument being connected on the plate body of bottom and the engagement groove for being present in upper board body side.On described
Portion's plate body is channel steel, and lower part plate body is steel plate, and the body of rod that centre connects two boards body up and down is telescopic supporting rod, and angle is surveyed
Amount instrument is connected to the groove wall angle for determining angle that upper and lower plate body is constituted on lower steel plate using this as angled cut, in conjunction with
Slot plays fixed supporting rod.
The plate body is fabricated structure, and upper and lower two boards body is hinged by hinge.
On top, an engagement groove is made in the two sides of plate body channel steel, which has one to extend along the channel steel longitudinally
Slide slot section and several separated engaging slot sections, which communicates with the slide slot section and the engaging slot section is upward
Extending, a telescopic supporting rod is connected on the plate body of lower part, the engagement groove in top channel steel is stretched on the top of the supporting rod, and
It can be slided in the slide slot section of the engagement groove, an engaging slot section can also be slid into and the top of the supporting rod is articulated in top
In channel steel.
In addition turnover angel measuring instrument is equipped on the plate body of lower part.The angel measuring instrument is also through being hingedly connected at down
On portion's plate body, the angel measuring instrument can be placed on the plate body of lower part when not in use, when use, which is turned down to lower part plate body, hangs down
Directly, mobile top plate body is adjusted to required angle, and supporting bar top is then slid into engaging slot section, so far just completes angle
The setting of degree.
The utility model has the beneficial effects that：
1, using the utility model lead angle plate, it can accomplish " flat, straight, neat, accurate " in engineering precision range completely, improve quick-fried
The order of accuarcy of broken eye parallactic angle degree, and then reach good demolition effect；
2, the utility model lead angle plate is using common steel on the market, the angle i.e. bevel edge after angle measurement equipment measures
Angle be exactly snubber angle, use is extremely convenient；
3, the utility model lead angle plate can be put together when not used with gib material, and listed management, be easy
It picks and places, management is convenient；
4, the utility model lead angle plate uses fabricated structure, and different angles can be adjusted according to actual requirement of engineering,
One plate is multi-purpose, reduces the quantity of lead angle plate, cost-effective；
5, the utility model is designed reasonably, simple in structure, accurate positioning and cost are relatively low, can be used under all kinds of complex environments
Tunnelling, applied widely, implementation easy to spread is with good economic efficiency.
Description of the drawings
Fig. 1 is one of the structural schematic diagram that rock drift blasting snubber angle controls lead angle plate.
Fig. 2 is the two of the side structure schematic diagram that rock drift blasting snubber angle controls lead angle plate.
Fig. 3 is the engagement groove third structural representation that rock drift blasting snubber angle controls lead angle plate.
Specific implementation mode
Embodiment：Referring to Fig. 1-Fig. 3, in figure, the tops 1- plate body, the lower parts 2- plate body, 3- angle measurement equipments, the scalable branch of 4-
Strut, 5- engagement grooves, 6- slide slot sections, 7- engaging slot sections.
Single free-face rock blasting angled cut angle control lead angle plate includes top plate body 1, lower part plate body 2, angle survey
Measuring device 3, retractable support lever 4 and engagement groove 5.Wherein：Top plate body 1 and lower part plate body 2 are hinged by hinge, angle
Degree measuring appliance 3 is hinged on also through hinge on lower part plate body 2, and telescopic supporting rod 4 connects two boards body up and down, engagement groove 5
Play fixed telescopic supporting rod 4.Top plate body 1 and the cell wall angle that the angle after the fixation of lower part plate body 2 is angled cut
Degree.
The use of lead angle plate：When carrying out angled cut, angle measurement equipment 3 is adjusted to vertical with lower part plate body 2 first, it is logical
It crosses and moves the angle that top plate body 1 adjusts upper and lower two boards body formation（During adjustment, the top of supporting rod 4 should be at
In the slide slot section 6 of engagement groove 5）, at any time the angle on viewing angle measuring appliance 3 will be supported after snubber angle is determined
The top of bar 4 slides into the engaging slot section 7 in engagement groove 5, so far just completes the adjustment of snubber angle.The wall that such as heads on is flat
Together, directly the bottom of lower part plate body 2 can be attached on head-on wall（It is left and right parallel with head-on wall）.The wall that such as heads on is not concordant, must
It must meet head on to step back 200mm in working face and pull on a parallel lines.Then slotting machinery can be placed in 2 top of top plate body carry out
The work of angled cut.
Claims (3)
1. a kind of Single free-face rock blasting angled cut angle controls lead angle plate, which is characterized in that including：Top plate body 1, under
Portion's plate body 2, angle measurement equipment 3, telescopic supporting rod 4, engagement groove 5；On top, a combination is made on the both sides of the channel steel of plate body 1
Slot 5, the engagement groove 5 have a slide slot section extended along the channel steel longitudinally and several separated engaging slot sections, the engaging
Slot section is communicated with the slide slot section and the engaging slot section is to upwardly extend, and a telescopic support is connected on lower part plate body 2
The engagement groove 5 in top plate body 1 is stretched on bar 4, the top of the supporting rod 4, and the top of the supporting rod 4 can be in the cunning of the engagement groove 5
It is slided in row slot section, an engaging slot section can also be slid into and the top of the supporting rod 4 is articulated in upper board body.
2. Single free-face rock blasting angled cut angle according to claim 1 controls lead angle plate, which is characterized in that on
Portion's plate body 1 and 2 end of lower part plate body are hinged by hinge, and can around hinge rotate freely.
3. Single free-face rock blasting angled cut angle according to claim 1 controls lead angle plate, which is characterized in that angle
Degree measuring appliance 3 is hinged on by hinge on lower part plate body 4, which can rotate around lower part plate body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820011005.8U CN207936859U (en) | 2018-01-04 | 2018-01-04 | A kind of Single free-face rock blasting angled cut angle control lead angle plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820011005.8U CN207936859U (en) | 2018-01-04 | 2018-01-04 | A kind of Single free-face rock blasting angled cut angle control lead angle plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207936859U true CN207936859U (en) | 2018-10-02 |
Family
ID=63648126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820011005.8U Expired - Fee Related CN207936859U (en) | 2018-01-04 | 2018-01-04 | A kind of Single free-face rock blasting angled cut angle control lead angle plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207936859U (en) |
-
2018
- 2018-01-04 CN CN201820011005.8U patent/CN207936859U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181002 Termination date: 20200104 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |