CN211648216U - Self-expansion type pipe seam anchor rod - Google Patents
Self-expansion type pipe seam anchor rod Download PDFInfo
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- CN211648216U CN211648216U CN202020070305.0U CN202020070305U CN211648216U CN 211648216 U CN211648216 U CN 211648216U CN 202020070305 U CN202020070305 U CN 202020070305U CN 211648216 U CN211648216 U CN 211648216U
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Abstract
The utility model discloses a self-expanding pipe seam anchor rod, which comprises an expanding rod and an anchor rod part, wherein the expanding rod is a cylinder with the top end in a round platform shape, the anchor rod part comprises an anchor rod body, an anchor rod preformed hole and an anchor rod top, the utility model discloses a through arranging the anchor rod preformed hole on the anchor rod body, the anchor rod body can not deform because of self-tension, thereby the anchor rod body can be easily put into a drilling hole with a slightly larger diameter than the outer diameter of the anchor rod body, then an expanding rod is pressed into the anchor rod part to break a reserved lug, thereby the connection between the longitudinal directions of the anchor rod body is broken, the anchor rod is opened under the self-tension action, thereby the rod body generates radial extrusion force to surrounding rock under the restriction of the hole wall, axial friction force is generated between the hole wall, and simultaneously because the anchor rod body is opened, the expanding rod can be easily removed, thereby the self-expanding rod can be, the utility model discloses the utensil has improved the installation effectiveness when having improved the stock steady power.
Description
Technical Field
The utility model relates to a geotechnical engineering struts technical field, specifically is a from formula pipe seam stock that rises.
Background
The pipe seam anchor rod belongs to a friction type full-length anchoring type prestressed anchor rod and has the advantages of simple structure, convenience in installation, low price, quick bearing and the like. Since the advent of the prior art, the anchor rod is widely applied to the technical field of supporting of the bottom engineering, in particular to supporting and reinforcing of a soft rock roadway. The conventional tube seam anchor rod is composed of a rod body with a tube seam longitudinally opened in the whole length and a supporting component arranged at the rear end of the rod body, wherein the outer diameter of the rod body is 2-3mm larger than the aperture of a drilled hole, and the diameter of the rod body is gradually reduced along the longitudinal direction. The anchoring principle is that a rod body with a pipe seam is radially compressed through external force, the diameter of the front end of the rod body is slightly smaller than the aperture of a drilled hole, then the rod body is driven into the drilled hole, the rod body generates radial extrusion force on surrounding rock under the constraint of a hole wall and generates axial friction force with the hole wall, and the rod body plays a role in reinforcing and stably supporting the surrounding rock under the support of a supporting device at the rear end of an anchor rod.
And the tube seam stock among the prior art, once its material and pipe diameter are confirmed, its anchor power mainly depends on the difference of stock pipe diameter and drilling aperture. The smaller the difference value is, the larger the anchoring force is, but the larger the installation difficulty is, and the lower the installation speed and efficiency are; the larger the difference, the smaller the anchoring force and the poorer the anchoring effect, but the easier the installation, the higher the installation speed and efficiency, and therefore the contradiction between the improvement of the anchoring strength and the improvement of the installation speed exists.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a from formula pipe seam stock that rises to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides a from formula pipe seam stock that rises, is including expanding and filling pole and stock part, expand and fill the pole and be the cylinder of round platform form for the top, the stock part includes the stock body of rod, keeps off ring, stock preformed hole and stock top, the stock body of rod is cylindrical barrel, stock body of rod top is equipped with keeps off the ring be equipped with a plurality of stock preformed hole on the stock body of rod, it is further, the stock preformed hole is equidistantly arranged on same axis, and is further, the inside stock preformed hole of the stock body of rod is with adjacent be equipped with between the stock preformed hole and reserve the lug.
As a further aspect of the present invention: the length of the extension rod is longer than that of the anchor rod part.
As a further aspect of the present invention: the diameter of the expanding rod is slightly smaller than the inner diameter of the anchor rod body.
As a further aspect of the present invention: the distance between the anchor rod preformed holes is 3-6 mm.
As a further aspect of the present invention: the circumference of the top of the anchor rod is equidistantly provided with 3-4 preformed holes of the top of the anchor rod.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a set up the stock preformed hole on the stock body of rod to make the stock body of rod can not warp because self tension, thereby can put into the drilling that is bigger than its external diameter a little with it very easily, will expand the pole afterwards and squeeze into will reserve the lug in the stock part and break away, thereby make the stock body of rod vertically between the disconnection, the stock opens under the tension of self, thereby the body of rod produces radial extrusion force to the country rock under the restraint of pore wall, produces axial friction between the pore wall, simultaneously because the expansion of the stock body of rod, expand and fill the pole and can get rid of very easily, thereby can used repeatedly, the utility model discloses the utensil has improved the installation effectiveness when having improved the steady solid power of stock.
Drawings
Fig. 1 is a schematic structural view of a self-expanding tube seam anchor rod.
Fig. 2 is a cross-sectional view of a self-expanding tube seam anchor.
Fig. 3 is a bottom view of the self-expanding tube seam anchor.
Fig. 4 is a partially enlarged view of the self-expandable tubular seam anchor at a in fig. 2.
Fig. 5 is a three-dimensional structure schematic diagram of the self-expanding tube seam anchor rod.
In the figure: 10-expanding rod, 20-anchor rod part, 21-baffle ring, 22-rod top preformed hole, 23-anchor rod preformed hole, 24-anchor rod top, 25-anchor rod body and 26-preformed lug.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, other embodiments obtained by a person of ordinary skill in the art without creative work all belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the term "center". The directional or positional relationships "length," "width," "height," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "side," and the like are indicative of the directional or positional relationships illustrated in fig. 1, merely to facilitate description and to simplify description, and are not indicative or implied that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the invention.
Example 1
Referring to fig. 1 to 5, a self-expanding pipe seam anchor rod includes an expanding rod and an anchor rod member 20, the expanding rod is a circular truncated cone-shaped cylinder, the anchor rod member 20 includes an anchor rod body 25, a retaining ring 21, anchor rod preformed holes 23 and an anchor rod top 24, the anchor rod body 25 is a cylindrical cylinder, the retaining ring 21 is disposed above the anchor rod body 25, a plurality of anchor rod preformed holes 23 are disposed on the anchor rod body 25, and further, the anchor rod preformed holes 23 are equidistantly disposed on the same axis, further, a preformed protrusion 26 is disposed between each anchor rod preformed hole 23 and the adjacent anchor rod preformed hole 23 inside the anchor rod body 25, the diameter of a general pipe seam anchor rod needs to be gradually reduced along the radial direction, so as to conveniently drive the pipe seam anchor rod into a drill hole to stabilize the surrounding rock by using the tension of the anchor rod itself, while in this embodiment, only a plurality of anchor rod preformed holes 23 are disposed on one side of the anchor rod body 25, the anchor rod body 25 can not expand outwards under the action of self tension due to structural damage, so that a cylindrical structure can be kept, the anchor rod body can be easily placed into a drill hole with a slightly larger inner diameter, the outer wall of the anchor rod body 25 is not contacted with the drill hole at the moment, when the expansion rod enters the interior of the anchor rod body 25, the reserved convex block 26 is squeezed open along with the entering of the expansion rod, a plurality of anchor rod reserved holes 23 are connected into a longitudinal slot, the anchor rod body 25 expands under the action of self tension to be contacted with the drill hole and generate radial extrusion force on surrounding rock, and therefore the purpose of stabilizing the bedrock is achieved, the anchor rod top 24 is also expanded along the anchor rod top reserved hole 22 after the expansion rod enters and is contacted with the drill hole, and the connection between the anchor rod body 25 and the bedrock is reinforced.
As a further aspect of this embodiment: in order to ensure that the expansion rod can completely force the pilot projection 26 open, the length of the expansion rod is longer than the length of the anchor member 20.
As a further aspect of this embodiment: in order to be able to enter the anchor rod body 25 and to be able to blow open the projection 26, the diameter of the expansion rod is slightly smaller than the inner diameter of the anchor rod body 25.
As a further aspect of this embodiment: in order to meet the requirement of structural rigidity and facilitate that the expansion rod can easily break the reserved convex block 26, the distance between the anchor rod reserved holes 23 is 3 mm.
As a further aspect of this embodiment: the anchor rod top 24 is provided with 3 rod top preformed holes 22 at equal intervals in the circumferential direction.
Example 2
The present embodiment is a further improvement and limitation of embodiment 1 on the basis of embodiment 1, and differs from embodiment 1 in that in the present embodiment, the distance between the anchor rod preformed holes 23 is 6mm, and the anchor rod top 24 is provided with 4 rod top preformed holes 22 at equal intervals in the circumferential direction.
The utility model discloses a theory of operation is:
will the stock part 20 is put into the drilling that drills, will later expand the pole and squeeze into gradually inside the stock body of rod 25, along with expanding the propulsion of filling the pole, break away the reservation lug 26 that sets up on the stock body of rod 25 to make and be connected for a crack between the stock preformed hole 23 on the stock body of rod 25, the stock body of rod 25 rises under the effect of self tension and opens, and the body of rod produces radial extrusion force to the country rock under the restraint of pore wall, plays the effect of consolidating and stable support to the country rock.
Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.
Claims (5)
1. The utility model provides a from formula pipe seam stock that rises, fills pole (10) and stock part (20) including expanding, its characterized in that, expand and fill pole (10) and be the cylinder of round platform form for the top, stock part (20) include the stock body of rod (25), stock preformed hole (23) and stock top of rod (24), the stock body of rod (25) is cylindrical barrel, the stock body of rod (25) top is equipped with keeps off ring (21) be equipped with a plurality of stock preformed hole (23) on the stock body of rod (25), stock preformed hole (23) are equidistantly arranged on same axis, the stock body of rod (25) inside stock preformed hole (23) and adjacent be equipped with lug (26) between stock preformed hole (23).
2. A self-expanding tube seam anchor as claimed in claim 1, wherein the length of the expansion rod (10) is longer than the length of the anchor member (20).
3. A self-expanding tube seam anchor as claimed in claim 1 or 2, wherein the expansion rod (10) diameter is smaller than the anchor rod body (25) inner diameter.
4. A self-expanding tube seam anchor as claimed in claim 1, wherein the distance between the anchor preformed holes (23) is 3-6 mm.
5. A self-expanding tube seam anchor as claimed in claim 1, wherein the anchor head (24) is provided with 3-4 head preformed holes (22) equally circumferentially spaced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020070305.0U CN211648216U (en) | 2020-01-14 | 2020-01-14 | Self-expansion type pipe seam anchor rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020070305.0U CN211648216U (en) | 2020-01-14 | 2020-01-14 | Self-expansion type pipe seam anchor rod |
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| Publication Number | Publication Date |
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| CN211648216U true CN211648216U (en) | 2020-10-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020070305.0U Active CN211648216U (en) | 2020-01-14 | 2020-01-14 | Self-expansion type pipe seam anchor rod |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115788498A (en) * | 2023-01-31 | 2023-03-14 | 矿冶科技集团有限公司 | Mechanical tunneling and supporting method in filling body |
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2020
- 2020-01-14 CN CN202020070305.0U patent/CN211648216U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115788498A (en) * | 2023-01-31 | 2023-03-14 | 矿冶科技集团有限公司 | Mechanical tunneling and supporting method in filling body |
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