CN207513556U - A kind of lock scissors anchor drill bit - Google Patents
A kind of lock scissors anchor drill bit Download PDFInfo
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- CN207513556U CN207513556U CN201721416647.8U CN201721416647U CN207513556U CN 207513556 U CN207513556 U CN 207513556U CN 201721416647 U CN201721416647 U CN 201721416647U CN 207513556 U CN207513556 U CN 207513556U
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- losenges
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Abstract
A kind of lock scissors anchor drill bit, including anchor drill body (1), the top of the anchor drill body (1) is brill tooth (2), middle part offers square through hole, bottom offers the internal thread hole to match with anchor pole external screw thread, which connects with internal thread hole；Pivot joint is equipped with two panels losenges (3) arranged side by side in the square through hole, and two losenges are centrosymmetric setting, when the external screw thread of anchor pole one end gradually screws in internal thread hole and resists the lower part of two panels losenges, a losenges rotates clockwise, another losenges rotates counterclockwise.By above-mentioned technical proposal, the utility model provide it is a kind of can have both drilling, anchoring function lock scissors anchor drill bit.
Description
Technical field
The utility model belongs to geotechnical engineering anchoring field, more particularly to a kind of lock scissors anchor drill bit.
Background technology
Expansion shell type anchor head is known, using very universal in the geotechnical engineerings such as side slope, foundation pit, mining and tunnel.Rise
Shell-type anchor head is made of high strength steel, is made of interior wedge and the shell intermediate plate that rises, and is supporting body inside anchor rod prestress, is belonged to machine
Tool formula anchoring system.Its installation is simple, but a disadvantage is that：Traditional anchor head only has tensioner to anchor effect, in installation anchor
Ground obstruction is encountered during head, needs to drill again after solution stops and anchor head is installed again, so as to increase working procedure and work
Amount, additionally, due to the expansion shell type anchor head design structure of itself, can only open 60% in use, and opening width is inadequate, anchoring
Power is smaller, and easily comes off or loosen, and very big hidden danger is caused to construction safety.In view of above-mentioned existing anchor head there are the defects of and
The improvement needed, the present inventor is based on being engaged in such product design manufacture experience for many years and professional knowledge and actual demand, hair
Understand a kind of novel lock scissors anchor drill bit.
Invention content
The purpose of this utility model is that overcome existing anchor drill bit there are the defects of, provide it is a kind of can realize drilling and
The anchor drill bit of the new structure of double effects is anchored, thus more suitable for practicality.
The purpose of this utility model and to solve its technical problem realized using following technical scheme.It is new according to this practicality
What type proposed.
By above-mentioned technical proposal, the utility model proposes a kind of lock scissors anchor drill bit, including anchor drill body, the anchor
The top of drill body is brill tooth, middle part offers square through hole, bottom offers the internal thread to match with anchor pole external screw thread
Hole, the square through hole are connected with internal thread hole；Pivot joint is equipped with two panels losenges arranged side by side, and two diamond shapes in the square through hole
Piece is centrosymmetric setting, when the external screw thread of anchor pole one end gradually screws in internal thread hole and resists the lower part of two panels losenges,
One losenges rotates clockwise, another losenges rotates counterclockwise.
Preferably, the brill tooth bores tooth for cross.
Preferably, the two panels losenges is connected by axis pin.
Preferably, the material of two losenges is Q235 materials.
Preferably, the top and bottom end of the square through hole are equipped with two groups of incline structures, every group of incline structure includes setting
In the second inclined-plane of first inclined-plane on square through hole top and square through hole bottom end, and first inclined-plane and the second inclined-plane are positioned at same
Not homonymy in the vertical plane of losenges；When losenges does not work, the first inclined-plane is in contact with the top inclined-plane of losenges,
Two inclined-planes are in contact with the bottom end inclined-plane of losenges.
The utility model at least has following advantageous effect compared with prior art：
1st, it is cross brill tooth at the top of the anchor drill body of the utility model, there is drilling, solve original anchor head
Can only tensioner anchoring and the defects of cannot drill, thus greatly reduce the usage amount of anchor pole.
2nd, the losenges that the anchoring function of the utility model is set up in parallel by two and direction of rotation is opposite is realized：In anchor
Under the action of bar, into lock scissors, the diameter opened than existing expansion shell type anchor head doubles losenges energy Unscrew, enhances
Tensioner anchor force, and loosening not easily to fall off reduce the accident of construction.
The above description is merely an outline of the technical solution of the present invention, in order to better understand the technology of the utility model
Means, and being implemented in accordance with the contents of the specification, and to allow the above and other purpose of the utility model, feature and excellent
Point can be clearer and more comprehensible, and special below to lift preferred embodiment, and coordinate attached drawing, detailed description are as follows.
Description of the drawings
Fig. 1 is the structure diagram of the utility model.
Fig. 2 is stereogram when two losenges of the utility model are opened.
Fig. 3 is Fig. 2 front views.
Fig. 4 is position relationship schematic diagram of two losenges of the utility model when not working.
【Main element symbol description】
1：Anchor drill body 2：Bore tooth
3：Losenges 4：Axis pin
5：First inclined-plane 6：Second inclined-plane
Specific embodiment
Further to illustrate that the utility model is to reach the technological means and effect that predetermined goal of the invention taken, below
With reference to attached drawing and preferred embodiment, to according to the utility model proposes a kind of lock scissors anchor drill bit its specific embodiment, knot
Structure, feature and its effect are described in detail as after.
It please refers to Fig.1 to Fig.3, a kind of lock scissors anchor drill bit, including anchor drill body 1, the top of the anchor drill body 1 is
Tooth 2 is bored, for the drilling of tunnel palisades；The middle part of anchor drill body 1 offers square through hole；It opens the bottom of anchor drill body 1
Equipped with the internal thread hole to match with anchor pole external screw thread, which connects with internal thread hole.Pivot joint is equipped in square through hole
Two panels losenges arranged side by side, and one group of parallel edges of one of losenges is parallel with one group of parallel edges of another losenges,
And another group of interlaced setting of parallel edges of two losenges, it is specific as shown in Figure 4：Two losenges are centrosymmetric and set
It puts, symmetrical centre is the diagonal intersection point of any losenges.When the external screw thread of anchor pole one end gradually screws in internal thread hole and resists
During the lower part of two panels losenges, a losenges rotates clockwise, another losenges rotates counterclockwise.
Further, the brill tooth 2 bores tooth for cross.
Further, the center of the two panels losenges opens up through-hole, is connected by axis pin 4, the both ends of the axis pin and anchor
Drill body 1 connects.
Further, the material of two losenges 3 is Q235 materials.
Further, the top of the square through hole and bottom end are equipped with two groups of incline structures, and every group of incline structure includes
Set on first inclined-plane 5 on square through hole top and the second inclined-plane of square through hole bottom end 6, and 6,5 and second inclined-plane of the first inclined-plane
In the not homonymy in the vertical plane of same losenges.As shown in Figure 1, (be collapsible into square through hole) when diamond shape does not work,
First inclined-plane 5 is for limiting the top of losenges, the second inclined-plane 6 is used to limit the bottom end of losenges.Such as
Shown in Fig. 2：In the vertical plane where any losenges, the first inclined-plane 5, second is equipped on the top of square through hole and bottom end tiltedly
Face 6, and the first inclined-plane 5 and the second inclined-plane 6 are located at not homonymy, when losenges does not work (when being collapsible into square through hole),
The top inclined-plane of losenges is contacted with the first inclined-plane 5, the bottom end of losenges is contacted with the second inclined-plane 6, above-mentioned incline structure energy
So that two losenges realize rotation, the limiting less than 180 °.
The operation principle of the utility model is as described below：
It in construction, first drills on palisades, then the utility model mounted on the front end of anchor pole is sent to together and has been beaten
In good hole, until lock scissors anchor drill bit and anchor pole reach scheduled position, rotation anchor pole, with the precession of anchor pole, anchor together
The lower part of two losenges 3 is withstood in bar front end, and two losenges 3 slowly synchronize in the square through hole by 1 middle part of anchor drill body
Unscrew forms semi arch, effect is anchored so as to play reaming into lock scissors structure as shown in Figure 3.
The above descriptions are merely preferred embodiments of the present invention, and any person skilled in the art is not
It is detached from the range of technical solutions of the utility model, according to the technical essence of the utility model any letter made to the above embodiment
Single modification, equivalent variations and modification, in the range of still falling within technical solutions of the utility model.
Claims (5)
1. a kind of lock scissors anchor drill bit, including anchor drill body (1), it is characterised in that：The top of the anchor drill body (1) is bores
Tooth (2), middle part offer square through hole, bottom offers the internal thread hole to match with anchor pole external screw thread, the square through hole with
Internal thread hole connects；Pivot joint is equipped with the losenges (3) that two panels is set up in parallel in the square through hole, and two losenges are in center
It is symmetrical arranged, when the external screw thread of anchor pole one end gradually screws in internal thread hole and resists the lower part of two panels losenges, a diamond shape
Piece rotates clockwise, another losenges rotates counterclockwise.
2. lock scissors anchor drill bit according to claim 1, it is characterised in that the brill tooth (2) bores tooth for cross.
3. lock scissors anchor drill bit according to claim 1, it is characterised in that the two panels losenges is connected by axis pin (4)
It connects.
4. lock scissors anchor drill bit according to claim 1, it is characterised in that the material of described two losenges (3) is
Q235 materials.
5. lock scissors anchor drill bit according to claim 1, it is characterised in that the top and bottom end of the square through hole are equipped with
Two groups of incline structures, every group of incline structure are included set on first inclined-plane (5) on square through hole top and square through hole bottom end the
Two inclined-planes (6), and the not homonymy of the first inclined-plane (5) and the second inclined-plane (6) in the vertical plane of same losenges；In diamond shape
When piece (3) does not work, the first inclined-plane (5) are in contact with the top inclined-plane of losenges, the bottom end inclined-plane of the second inclined-plane and losenges
It is in contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721416647.8U CN207513556U (en) | 2017-10-25 | 2017-10-25 | A kind of lock scissors anchor drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721416647.8U CN207513556U (en) | 2017-10-25 | 2017-10-25 | A kind of lock scissors anchor drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207513556U true CN207513556U (en) | 2018-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721416647.8U Active CN207513556U (en) | 2017-10-25 | 2017-10-25 | A kind of lock scissors anchor drill bit |
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| Country | Link |
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| CN (1) | CN207513556U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110593260A (en) * | 2019-10-11 | 2019-12-20 | 中铁隆昌铁路器材有限公司 | Self-drilling type pre-stressed anchoring head and construction method thereof |
-
2017
- 2017-10-25 CN CN201721416647.8U patent/CN207513556U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110593260A (en) * | 2019-10-11 | 2019-12-20 | 中铁隆昌铁路器材有限公司 | Self-drilling type pre-stressed anchoring head and construction method thereof |
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