CN214578172U - Inverted self-undercut anchor - Google Patents
Inverted self-undercut anchor Download PDFInfo
- Publication number
- CN214578172U CN214578172U CN202023067601.4U CN202023067601U CN214578172U CN 214578172 U CN214578172 U CN 214578172U CN 202023067601 U CN202023067601 U CN 202023067601U CN 214578172 U CN214578172 U CN 214578172U
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- CN
- China
- Prior art keywords
- anchor bolt
- screw rod
- bolt screw
- extrusion block
- expansion
- 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
Links
- 238000001125 extrusion Methods 0.000 claims abstract description 46
- 238000005553 drilling Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 206010066054 Dysmorphism Diseases 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000002407 reforming Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model discloses an inverted butt type self-cutting anchor bolt, which comprises a first anchor bolt screw rod, a first extrusion block, a second anchor bolt screw rod, a second extrusion block, a pair of sleeve bodies with the same structure, a pair of expansion sheets with the same structure, a gasket and a nut, wherein the first extrusion block is fixedly connected with the bottom end of the first anchor bolt screw rod, and the top end of the second anchor bolt screw rod is fixedly connected with the bottom end of the first extrusion block, the utility model relates to the technical field of self-cutting bottom anchor bolts, the two sleeve bodies of the self-cutting bottom anchor bolt of the utility model adopt a segmented structure and respectively correspond to the first extrusion block and the second extrusion block, after the first anchor bolt screw rod, the second anchor bolt screw rod and the sleeve bodies are arranged in a drill hole, the nut is screwed, at the moment, the first extrusion block and the second extrusion block can move outwards so as to ensure that the two expansion sheets are expanded in succession, the extrusion force of the side wall in the drill hole is larger, and the bearing strength of the whole anchor bolt is stronger, meanwhile, the connection strength between the expansion sheet and the hole is enhanced through the insections arranged on the outer side of the expansion sheet.
Description
Technical Field
The utility model relates to a from cutting end anchor bolt technical field specifically is formula in opposite directions from cutting end crab-bolt.
Background
The anchor bolt is a novel metal fastening material, can be used for mounting post-embedded parts in dry-hanging construction of various curtain walls and marbles, and can also be used for mounting equipment and guardrails of highways and bridges; and reinforcing and reforming buildings and other occasions.
The existing self-undercut anchor bolt generally comprises a screw rod, a sleeve body and a nut, is arranged in a pre-processed drilled hole, can expand at the bottom end of the sleeve body to implement anchoring, and has higher bearing capacity. However, the conventional anchor bolt basically adopts a single expansion sheet, and when the tensile strength and the shearing resistance are required to be higher, the bearing capacity of the conventional anchor bolt is possibly in risk.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an inverted hip formula is from undercut crab-bolt to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: an inverted prop type self undercut anchor bolt comprises a first anchor bolt screw rod, a first extrusion block, a second anchor bolt screw rod, a second extrusion block, a pair of sleeve bodies with the same structure, a pair of expansion sheets, gaskets and nuts with the same structure, wherein the first extrusion block is fixedly connected with the bottom end of the first anchor bolt screw rod, the top end of the second anchor bolt screw rod is fixedly connected with the bottom end of the first extrusion block, the second extrusion block is fixedly connected with the bottom end of the second anchor bolt screw rod, the sleeve bodies are respectively movably sleeved on the outer sides of the first anchor bolt screw rod and the second anchor bolt screw rod, the inner sides of the sleeve bodies are in threaded connection with the first anchor bolt screw rod and the second anchor bolt screw rod, the top ends of the expansion sheets are connected with the sleeve bodies, the expansion sheets are tightly attached to the first extrusion block and the second extrusion block, the gaskets are movably sleeved on the top end of the first anchor bolt screw rod, and the sleeve bodies are attached to the upper side, the nut is movably sleeved at the top end of the first anchor bolt screw rod, is in threaded connection with the first anchor bolt screw rod, and is positioned above the gasket.
Preferably, a plurality of insections with the same structure are arranged on the outer sides of the pair of expansion pieces.
Preferably, the number of the upper expansion sheet and the lower expansion sheet is four.
Preferably, the two sides of the first extrusion block and the second extrusion block are provided with round corners.
Compared with the prior art, the beneficial effects of the utility model are that: this device is rational in infrastructure, with low costs, high durability and convenient use, the utility model discloses a self-cutting end anchor bolt, two cover bodies adopt the merogenesis structure, correspond first extrusion piece and second extrusion piece respectively, at first crab-bolt screw rod, second crab-bolt screw rod and cover body pre-installation back in the drilling, the nut of screwing, at this moment, thereby first extrusion piece and second extrusion piece can make the inflation in succession of two expansion pieces come to the outside motion, the extrusion force to the lateral wall in the drilling is bigger, the intensity that whole crab-bolt bore is stronger, the insection of seting up through the expansion piece outside has strengthened expansion piece and downthehole joint strength simultaneously.
Drawings
Fig. 1 is a schematic view of the structure of the present invention;
FIG. 2 is a schematic view of the enlarged sectional structure of the front view of the present invention;
fig. 3 is a schematic view of the first anchor bolt screw, the first extrusion block, the second anchor bolt screw and the second extrusion block of the present invention.
In the figure: 1-a first anchor bolt screw rod, 2-a first extrusion block, 3-a second anchor bolt screw rod, 4-a second extrusion block, 5-a sleeve body, 6-an expansion sheet, 7-a gasket, 8-a nut and 9-insections.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: an inverted prop type self-undercut anchor bolt comprises a first anchor bolt screw rod 1, a first extrusion block 2, a second anchor bolt screw rod 3, a second extrusion block 4, a pair of sleeve bodies 5 with the same structure, a pair of expansion sheets 6 with the same structure, a gasket 7 and a nut 8, wherein the first extrusion block 2 is fixedly connected with the bottom end of the first anchor bolt screw rod 1, the top end of the second anchor bolt screw rod 3 is fixedly connected with the bottom end of the first extrusion block 2, the second extrusion block 4 is fixedly connected with the bottom end of the second anchor bolt screw rod 3, the pair of sleeve bodies 5 are respectively movably sleeved on the outer sides of the first anchor bolt screw rod 1 and the second anchor bolt screw rod 3, the inner sides of the pair of expansion sheets 6 are in threaded connection with the first anchor bolt screw rod 1 and the second anchor bolt screw rod 3, the top ends of the pair of expansion sheets 6 are connected with the bottom ends of the pair of sleeve bodies 5, and are tightly jointed with the first extrusion block 2 and the second extrusion block 4, the gasket 7 is movably sleeved on the top end of the first anchor bolt screw rod 1 and is jointed with the upper sleeve body 5, the nut 8 is movably sleeved at the top end of the first anchor bolt screw rod 1, is in threaded connection with the first anchor bolt screw rod 1, and is positioned above the gasket 7.
Specifically, a plurality of insections 9 with the same structure are arranged on the outer sides of the pair of expansion pieces 6.
Specifically, the number of the upper expansion sheet 6 and the lower expansion sheet 6 is four.
Specifically, the first pressing block 2 and the second pressing block 4 have rounded corners on both sides.
All the electrical components in the present application are connected with the power supply adapted to the electrical components through the wires, and an appropriate controller should be selected according to actual conditions to meet the control requirements, and specific connection and control sequences should be obtained.
The working principle is as follows: according to the attached drawings 1-3, firstly, a wall body is drilled by using an impact drill according to the length of an anchor bolt, after drilling is finished, the interior of the hole is cleaned by using an air pump, the hole is cleaned by using a hard hairbrush, the hole cleaning treatment is carried out by using the air pump again, dust remained in the hole is prevented, before bolt installation, a nut 8 is screwed on a first anchor bolt screw rod 1 by using a hand, after each component is ensured not to be loosened, the cleaned hole is placed, the nut 8 is screwed by using a spanner, so that the first anchor bolt screw rod 1 and a second anchor bolt screw rod 3 drive a first extrusion block 2 and a second extrusion block 4 to move outwards through a sleeve body 5, the first extrusion block 2 and the second extrusion block 4 can extrude two expansion sheets 6, the two expansion sheets 6 are expanded in succession, and the connection strength between the expansion sheets 6 and the hole is increased through tooth patterns 9 arranged on the outer sides of the expansion sheets 6.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The utility model discloses the standard part that uses all can purchase from the market, and dysmorphism piece all can be customized according to the description with the record of drawing of description, and the concrete connection mode of each part all adopts conventional means such as ripe bolt, rivet, welding among the prior art, and machinery, part and equipment all adopt prior art, and conventional model, including circuit connection adopts conventional connection mode among the prior art, does not detailed here again.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. An inverted prop type bottom self-cutting anchor bolt comprises a first anchor bolt screw rod (1), a first extrusion block (2), a second anchor bolt screw rod (3), a second extrusion block (4), a pair of sleeve bodies (5) with the same structure, a pair of expansion sheets (6) with the same structure, a gasket (7) and nuts (8), and is characterized in that the first extrusion block (2) is fixedly connected with the bottom end of the first anchor bolt screw rod (1), the top end of the second anchor bolt screw rod (3) is fixedly connected with the bottom end of the first extrusion block (2), the second extrusion block (4) is fixedly connected with the bottom end of the second anchor bolt screw rod (3), the sleeve bodies (5) are movably sleeved outside the first anchor bolt screw rod (1) and the second anchor bolt screw rod (3) respectively, the inner sides of the second extrusion blocks are in threaded connection with the first anchor bolt screw rod (1) and the second anchor bolt screw rod (3), the top ends of the expansion sheets (6) are connected with the sleeve bodies (5), and it closely laminates with first extrusion piece (2) and second extrusion piece (4) gasket (7) activity suit is in first crab-bolt screw rod (1) top, and its and upside the cover body (5) is laminated mutually, nut (8) activity suit is in first crab-bolt screw rod (1) top, and its and first crab-bolt screw rod (1) threaded connection to it is located gasket (7) top.
2. The hip-type undercut anchor bolt according to claim 1, wherein a plurality of insections (9) having the same structure are formed on the outer sides of the pair of expansion pieces (6).
3. The hip-type undercut anchor bolt according to claim 1, characterized in that the number of said expansion tabs (6) on the upper side and said expansion tabs (6) on the lower side are four.
4. The hip-down self-undercut anchor bolt according to claim 1, characterized in that the first (2) and second (4) squeezing blocks are rounded on both sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023067601.4U CN214578172U (en) | 2020-12-18 | 2020-12-18 | Inverted self-undercut anchor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023067601.4U CN214578172U (en) | 2020-12-18 | 2020-12-18 | Inverted self-undercut anchor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214578172U true CN214578172U (en) | 2021-11-02 |
Family
ID=78365202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023067601.4U Expired - Fee Related CN214578172U (en) | 2020-12-18 | 2020-12-18 | Inverted self-undercut anchor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214578172U (en) |
-
2020
- 2020-12-18 CN CN202023067601.4U patent/CN214578172U/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: 20211102 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |