CN204154577U - A kind of anchor rod drawing instrument - Google Patents
A kind of anchor rod drawing instrument Download PDFInfo
- Publication number
- CN204154577U CN204154577U CN201420366556.8U CN201420366556U CN204154577U CN 204154577 U CN204154577 U CN 204154577U CN 201420366556 U CN201420366556 U CN 201420366556U CN 204154577 U CN204154577 U CN 204154577U
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- CN
- China
- Prior art keywords
- anchor rod
- drawing instrument
- oil cylinder
- rod drawing
- protective
- 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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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model relates to coal mine roadway technical field, discloses a kind of anchor rod drawing instrument, and this anchor rod drawing instrument comprises: protective nut, connector and oil cylinder; Anchor pole to be measured is threaded with described connector through joist, and described connector is connected with described protective nut through described oil cylinder, is provided with the protective device for preventing described oil cylinder from dropping between described protective nut and described joist.The anchor rod drawing instrument that the utility model provides, effectively prevent oil cylinder in pull-out test and flies out or fall from top board, and the anchor rod drawing instrument that the utility model provides has simple, the economical and practical feature of dependable performance, structure.
Description
Technical field
The utility model relates to coal mine roadway technical field, particularly relates to a kind of anchor rod drawing instrument, particularly a kind of anchor rod drawing instrument that can prevent oil cylinder in pull-out test from flying out or falling from top board.
Background technology
Bolt supporting is the topmost support pattern of coal mine roadway, and it efficiently solves a multiple roadway support difficult problem, produces make tremendous contribution for the safe high-yield and high-efficiency of China's coal-mine.It is important Detection of content in bolt supporting quality testing that bolt supporting material and anchor force detect.Explicitly call in coal industry standard " BOLTING TECHNOLOGY TO COAL ROADWAY specification ", the test of anchor rod drawing power must be carried out in the country rock needing the coal road of supporting scene or conditions of similarity before roadway bolting support, be no less than three anchor poles at every turn.The anchor of country rock is judged according to test findings.Construction period adopts anchor rod drawing instrument to carry out carrying out anchor-holding force of anchor bolt detection in 3% ratio.Therefore, anchor rod drawing instrument is the indispensable testing tool of roadway supported by bolt.And current anchor rod drawing instrument when pull-out test without effective security protection, when drawing was lost efficacy, drawing oil cylinder flies out or falls from top board, and easily cause casualties accident, brings great hidden danger to tunnel safety.
In view of the defect of above-mentioned prior art, need to provide the anchor rod drawing instrument that can prevent oil cylinder in pull-out test from flying out or falling from top board.
Utility model content
(1) technical matters that will solve
The technical problems to be solved in the utility model be existing anchor rod drawing instrument when pull-out test without effective security protection, when drawing is lost efficacy, drawing oil cylinder flew out or fell from top board, the problem of the accident that easily causes casualties.
(2) technical scheme
In order to solve the problems of the technologies described above, the utility model provides a kind of anchor rod drawing instrument, comprising: protective nut, connector and oil cylinder; Anchor pole to be measured is threaded with described connector through joist, and described connector is connected with described protective nut through described oil cylinder, is provided with the protective device for preventing described oil cylinder from dropping between described protective nut and described joist.
Wherein, described protective device comprises protective chain 6, and described protective chain 6 one end is connected with described protective nut 5, and the other end is connected with described joist 7.
Wherein, described protective nut 5 is threaded with described connector 2.
Wherein, the diameter of described protective chain is 5-10mm, and its material is wire rope.
Wherein, described oil cylinder is provided with over cap.
Wherein, the material of described over cap is rubber.
Wherein, also comprise manual pump, described manual pump is connected with described oil cylinder by oil pipe.
Wherein, described manual pump is provided with force-measuring gauge.
(3) beneficial effect
Technique scheme tool of the present utility model has the following advantages: in the anchor rod drawing instrument that the utility model provides, anchor pole to be measured is threaded with connector through joist, connector is connected with protective nut through oil cylinder, is provided with the protective device for preventing oil cylinder from dropping between protective nut and joist.The anchor rod drawing instrument that the utility model provides, effectively prevent oil cylinder in pull-out test and flies out or fall from top board, and the anchor rod drawing instrument that the utility model provides has simple, the economical and practical feature of dependable performance, structure.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment anchor rod drawing instrument.
In figure: 1: anchor pole; 2: connector; 3: oil cylinder; 4: manual pump; 5: protective nut; 6: protective chain; 7: joist.
Embodiment
In description of the present utility model, except as otherwise noted, the implication of " multiple " is two or more.Term " interior ", " on ", the orientation of the instruction such as D score or state relation be based on orientation shown in the drawings or state relation, only the utility model and simplified characterization for convenience of description, instead of the device of instruction or hint indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.
In description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary.For the ordinary skill in the art, concrete condition the concrete meaning of above-mentioned term in the utility model can be understood.
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following examples for illustration of the utility model, but are not used for limiting scope of the present utility model.
As shown in Figure 1, the anchor rod drawing instrument that the utility model provides, comprising: protective nut 5, connector 2 and oil cylinder 3; In the present embodiment, anchor pole 1 is reinforcing bar or crab-bolt.Anchor pole 1 to be measured is through joist 7, and anchor pole 1 is connected with connector 2 by screw thread, and connector 2 is arranged at below joist 7, and connector 2 is threaded with protective nut 5 through oil cylinder 3, and oil cylinder 3 is fixedly connected with protective nut 5.Between protective nut 5 and joist 7, be provided with the protective device for preventing oil cylinder 3 from dropping, protective device is arranged on joist 7.Protective device comprises protective chain 6, and protective chain 6 one end is connected with protective nut 5, and the other end is connected with joist 7.Protective device can also be that fender rod one end is connected with protective nut 5, the other end is connected with joist 7, protective nut 5 is provided with symmetrical mounting hole, mounting hole is connected with protective chain 6 by protection hook, and the other end of protective chain 6 is connected with joist 7 or the wire netting be positioned at below joist 7.The diameter of protective chain 6 is 5-10mm, and its material is wire rope.When anchor rod drawing instrument carries out pull-out test, protective chain 6 in protective device is connected with the joist 7 of reinforcing bar material, after the thread segment of anchor pole 1 bar tail and connector 2 Joint failure are thrown off, restriction oil cylinder 3 flies out or falls from tunnel joist 7 by protective chain 6, avoid the generation of casualty accident, ensure that pull-out test carries out safely.
The position that in the present embodiment, protective chain 6 is connected with joist 7 can also arrange sensor, and when protective chain 6 produces change in displacement, signal is sent in alarm by sensor, and field staff can check anchor rod drawing instrument and keep in repair.
In the anchor rod drawing instrument that the utility model provides, oil cylinder 3 is provided with over cap; the material of over cap is rubber; over cap can prevent in drawing process; because working-yard dust is large; condition is poor, makes the foreign matter that is scattered and dust drop on the end cap of oil cylinder 3, damages oil cylinder; affect measuring accuracy, reduce the serviceable life of anchor rod drawing instrument.
The anchor rod drawing instrument that the utility model provides also comprises manual pump 4, and manual pump 4 is connected with described oil cylinder 3 by oil pipe, and manual pump 4 is provided with force-measuring gauge.Utilize manual pump 4 to pressurize to measure, the large I of the adhesion between anchor pole 1 and concrete is read by the force-measuring gauge be fixed on manual pump 4.
The anchor rod drawing instrument that the utility model provides, not only effectively prevent oil cylinder 3 in pull-out test to fly out or leak from the anchor rod drawing instrument that top board falls, can prevent dust from falling into oil cylinder 3, affect measuring accuracy, when there is fracture or lost efficacy in anchor pole 1 thread segment, sensor on protective chain 6 can send signal in alarm, and field staff can check anchor rod drawing instrument and keep in repair.
When the anchor rod drawing instrument that the utility model provides uses; manual pump 4 is connected with oil cylinder 3 by oil pipe; utilize manual pump 4 to pressurize to measure; adhesion size between anchor pole 1 and concrete can have the force-measuring gauge be arranged on manual pump 4 to read; over cap on oil cylinder 3 can prevent the foreign matter that is scattered and dust from dropping on the end cap of oil cylinder 3; damage oil cylinder, affect measuring accuracy.When anchor pole 1 screw thread in testing fracture occurs or lost efficacy, joist 7 can prevent protective nut 5 and oil cylinder 3 from flying out by protective chain 6, damages field staff.Sensor on protective chain 6 can send signal in alarm, and field staff can check anchor rod drawing instrument and keep in repair.
The anchor rod drawing instrument that the utility model provides has the following advantages, in the anchor rod drawing instrument that the utility model provides, anchor pole to be measured is threaded with connector through joist, connector is connected with protective nut through oil cylinder, is provided with the protective device for preventing oil cylinder from dropping between protective nut and joist.The anchor rod drawing instrument that the utility model provides, effectively prevent oil cylinder in pull-out test fly out or fall from top board, can also prevent dust from falling into oil cylinder, affect measuring accuracy, when there is fracture or lost efficacy in spiral thread on anchor bolt, sensor on protective chain can send signal in alarm, and field staff can check anchor rod drawing instrument and keep in repair.The anchor rod drawing instrument that the utility model provides has simple, the economical and practical feature of dependable performance, structure.
Above embodiment only in order to the technical solution of the utility model to be described, is not intended to limit; Although be described in detail the utility model with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of each embodiment technical scheme of the utility model.
Claims (8)
1. an anchor rod drawing instrument, is characterized in that, comprising: protective nut (5), connector (2) and oil cylinder (3); Anchor pole to be measured (1) is threaded with described connector (2) through joist (7), described connector (2) is connected with described protective nut (5) through described oil cylinder (3), is provided with the protective device for preventing described oil cylinder (3) from dropping between described protective nut (5) and described joist (7).
2. anchor rod drawing instrument according to claim 1, it is characterized in that: described protective device comprises protective chain (6), described protective chain (6) one end is connected with described protective nut (5), and the other end is connected with described joist (7).
3. anchor rod drawing instrument according to claim 1, is characterized in that: described protective nut (5) is threaded with described connector (2).
4. anchor rod drawing instrument according to claim 1, is characterized in that: the diameter of described protective chain (6) is 5-10mm, and its material is wire rope.
5. anchor rod drawing instrument according to claim 1, is characterized in that: (3) are provided with over cap with described oil cylinder.
6. anchor rod drawing instrument according to claim 5, is characterized in that: the material of described over cap is rubber.
7. anchor rod drawing instrument according to claim 1, is characterized in that: also comprise manual pump (4), and described manual pump (4) is connected with described oil cylinder (3) by oil pipe.
8. anchor rod drawing instrument according to claim 7, is characterized in that: (4) are provided with force-measuring gauge with described manual pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420366556.8U CN204154577U (en) | 2014-07-03 | 2014-07-03 | A kind of anchor rod drawing instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420366556.8U CN204154577U (en) | 2014-07-03 | 2014-07-03 | A kind of anchor rod drawing instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204154577U true CN204154577U (en) | 2015-02-11 |
Family
ID=52512681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420366556.8U Expired - Fee Related CN204154577U (en) | 2014-07-03 | 2014-07-03 | A kind of anchor rod drawing instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204154577U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105606472A (en) * | 2016-03-10 | 2016-05-25 | 辽宁工程技术大学 | Anchor rod impact test device and method thereof |
| CN105699191A (en) * | 2016-04-14 | 2016-06-22 | 北京智博联科技股份有限公司 | Mechanical anchor tension meter |
-
2014
- 2014-07-03 CN CN201420366556.8U patent/CN204154577U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105606472A (en) * | 2016-03-10 | 2016-05-25 | 辽宁工程技术大学 | Anchor rod impact test device and method thereof |
| CN105606472B (en) * | 2016-03-10 | 2019-05-14 | 辽宁工程技术大学 | A kind of anchor pole impact test apparatus and its method |
| CN105699191A (en) * | 2016-04-14 | 2016-06-22 | 北京智博联科技股份有限公司 | Mechanical anchor tension meter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150211 Termination date: 20150703 |
|
| EXPY | Termination of patent right or utility model |