CN102853735A - Clamping sheet exposing value measuring device of front clamping type jack - Google Patents
Clamping sheet exposing value measuring device of front clamping type jack Download PDFInfo
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- CN102853735A CN102853735A CN2012103119009A CN201210311900A CN102853735A CN 102853735 A CN102853735 A CN 102853735A CN 2012103119009 A CN2012103119009 A CN 2012103119009A CN 201210311900 A CN201210311900 A CN 201210311900A CN 102853735 A CN102853735 A CN 102853735A
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- intermediate plate
- pointer
- type jack
- thicker wire
- clip type
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Abstract
The invention relates to a clamping sheet exposing value measuring device of a front clamping type jack and particularly relates to a measuring tool for measuring a clamping sheet exposing amount variable quantity of the front clamping type jack in a stretching-drawing process. The clamping sheet exposing value measuring device of the front clamping type jack comprises a steel plate ruler and is characterized in that the steel plate ruler is provided with a thick steel wire penetrating into the front clamping type jack in parallel through a fixing part; the top of the thick steel wire penetrating into the front clamping type jack is provided with a high-strength magnet for fixing the thick steel wire and a clamping sheet measuring indicator which moves along with a clamping sheet; the measuring indicator is connected with a reading indication indicator capable of sliding on the steel plate ruler through a fine steel wire; and the lower end of the reading indication indicator points at the back side of the clamping sheet measuring indicator and is provided with a spring device which is used for keeping the clamping sheet measuring indicator and the clamping sheet to be tightly contacted. The adoption of the equipment has the beneficial effects that a worker can directly read out readings of each stretching-drawing control point and real-time monitoring is realized.
Description
Technical field
The present invention relates to a kind of front clip type jack intermediate plate and expose value measurement mechanism, specifically a kind of survey instrument of measuring the front clip type jack intermediate plate amount of exposing variable quantity in stretching process.
Background technology
Easily because of misoperation or stripped thread appears in material cause or steel strand wires are disrumpent feelings, misoperation also caused the oil cylinder detonation easily when pre-stress construction adopted jack tension, the lifting jack set bolt accident potential such as hurt sb.'s feelings that flies out; So the people will be away from lifting jack during stretch-draw, especially avoid staff or head when stretch-draw, to appear at the lifting jack rear end, when jack tension, also should arrange wooden in the lifting jack rear end or the irony protective shield, avoid intermediate plate, steel strand wires or lifting jack set bolt etc. to fly out and hurt sb.'s feelings.In jack tension when construction, need be measured the changing value of jack cylinder elongation and the intermediate plate amount of exposing, and by the actual stretch value of calculative determination steel strand wires, and inspection calculates actual stretch value and theoretic elongation deviation, make its be no more than ± 6%.And front clip type jack is as a prestress lifting jack that can effectively save the outer active length of steel strand wires anchor, its moveable anchor and tool clamping piece are installed in the lifting jack inner chamber, be difficult for measuring the protruded length changing value of intermediate plate during work, as adopt conventional handheld steel board foot to measure, operator's head, hand will be exposed to lifting jack and twisted wire rear end, if in case misoperation occurs or material is disrumpent feelings, can cause the generation of personnel casualty accidents; And bad visibility in the lifting jack inner chamber, what can't guarantee each measurement all is same tool clamping piece, the variable quantity of intermediate plate is just very little in the original stretching process, if what measure is not same intermediate plate, because intermediate plate self otherness when arranging can not guarantee the end of all intermediate plates on same facade, thereby form wrong intermediate plate variable quantity, it is auxiliary to add illuminationss such as also needing electric torch when measuring, and flow chart exists safety and hidden danger of quality.
Summary of the invention
For above-mentioned technical matters, the invention provides a kind of people of need not and start to measure, the variable quantity of intermediate plate is along with the stretching process simultaneous display, and the front clip type jack intermediate plate of convenient reading exposes real-time measurement apparatus.
A kind of front clip type jack intermediate plate exposes value measurement mechanism, comprise Steel Ruler, it is characterized in that: the thicker wire of clip type jack inside before described Steel Ruler is arranged with in parallel deeply by fixed part, the intermediate plate measurement pointer that the end of clip type jack is provided with high-strength magnet that can thicker wire is fixing and moves with intermediate plate before thicker wire gos deep into, measuring pointer connects and can indicate pointer at the reading that Steel Ruler is slided by finer wire, the lower end of reading indication pointer is pointed to the steel plate intermediate plate and is measured the spring that the rear side of pointer is provided with keeping clip measurement pointer and intermediate plate close contact, spring housing is connected on the thicker wire, and the other end of spring is provided with the spring-positioning device that is fixed on the thicker wire.
This intermediate plate measurement mechanism, Steel Ruler is fixed by thicker wire, and the inside of clip type jack was fixed on tension tool anchor ring surface by high strength magnet before an end of thicker wire is deep, and be provided with one at leading portion and move with intermediate plate and mobile intermediate plate is measured pointer, this intermediate plate is measured pointer by being provided with in its back-end spring, making intermediate plate measure pointer is close on the intermediate plate constantly, intermediate plate is stung tight steel strand wires gradually in stretching process, steel strand wires have a reverse pulling force to intermediate plate, cause that intermediate plate has individual displacement with respect to the instrument anchor ring, this device arranges in order to measure this displacement, because this displacement is the inside at front clip type jack, this device is by measuring pointer and be close to constantly on the intermediate plate in that intermediate plate being set, the rear portion of measuring pointer at intermediate plate connects reading indication pointer by finer wire, measuring pointer drive reading indication pointer by intermediate plate moves along Steel Ruler, can draw the variable quantity that intermediate plate exposes value, the difference of intermediate plate protruded length just can have been measured respectively, in order to make the more accurate Reduce measurement error of measurement result.
In order to make measurement result more accurate, reduce measuring error, described intermediate plate is measured on the pointer and also is provided with auxiliary locator; The bottom of described auxiliary locator is the semicircle arcuation corresponding with the steel strand wires shape, the semicircle cambered surface of steel strand wires auxiliary locator is close to steel strand wires, then intermediate plate is measured pointer and is automatically dropped on the tool clamping piece surface, and automatically heads on by the rear end spring assembly and to measure pointer to follow tool clamping piece mobile in real time; The outer end of thicker wire also is provided with vertical stationary installation, described vertical stationary installation is comprised of perpendicular positioning bar and location-plate, one end of perpendicular positioning bar is provided with magnet, the other end connects by screw rod connection and positioning plate, the other end of location-plate is connected on the thicker wire, the both sides of perpendicular positioning plate respectively are provided with a nut on the described screw rod, the upper end of described reading indication pointer is socketed on the thicker wire, the lower end is close on the Steel Ruler, it is on the circular cover joint thicker wire that affiliated intermediate plate is measured the pointer upper end, front end high strength magnet and rear end steel ruler link together by thicker wire, in order to make Steel Ruler in the easy-to-read position of people, pointer measured by intermediate plate and reading indication pointer all slides thereon, guaranteed right alignment, reduced measured deviation, Steel Ruler can be slided along thicker wire, fixed part and thicker wire pass through Bolt to position, for the ease of measuring and checking and measure fruit, institute's reading indication pointer can slide along finer wire, reading indication pointer and finer wire so just can make the reading pointer before stretch-draw useless on the integer scale by Bolt to position.
The present invention has following advantage:
1, simple installation need not to start when measuring to measure at every turn, and is laborsaving;
2, the intermediate plate amount of exposing in each stage of stretch-draw can detect in real time, is convenient to observe;
3, measurement result direct-reading is saved Measuring Time, accelerating construction progress;
4, Steel Ruler is perpendicular to end cap, the reading error that the Steel Ruler out of plumb is brought when having avoided manually-operated;
5, during stretch-draw personnel away from lifting jack, without potential safety hazard.
Description of drawings
The present invention is further described below in conjunction with accompanying drawing:
Fig. 1 is complete layout of the present invention;
Fig. 2 is verticality stationary installation synoptic diagram of the present invention;
Fig. 3 is reading measuring apparatus synoptic diagram of the present invention.
Among Fig. 1: 1, Steel Ruler, 2, the Steel Ruler stationary installation, 3, reading indication pointer, 4, thicker wire, 5, finer wire, 6, spring-positioning device, 7, spring, 8, intermediate plate is measured pointer, 9, steel strand wires auxiliary locator, 10, high-strength magnet, 11, fixed head, 12, perpendicular positioning bar, 13, screw rod.
Accompanying drawing is a kind of specific embodiment of the present invention, this embodiment comprises Steel Ruler 1, it is characterized in that: comprise Steel Ruler 1, it is characterized in that: the thicker wire 4 of clip type jack inside before described Steel Ruler 1 is arranged with in parallel deeply by fixed part, Steel Ruler can be slided along thicker wire 4, fixed part and thicker wire 4 pass through Bolt to position, the end of clip type jack is provided with the high-strength magnet 10 that thicker wire 4 can be fixed and the intermediate plate measurement pointer 11 that moves with intermediate plate before thicker wire 4 gos deep into, measuring pointer 11 connects and can indicate pointer 3 at the reading that Steel Ruler is slided by finer wire 5, the lower end of reading indication pointer is pointed to the steel plate intermediate plate and is measured the spring 7 that the rear side of pointer 11 is provided with keeping clip measurement pointer 11 and intermediate plate close contact, spring 7 is socketed on the thicker wire, and the other end of spring 7 is provided with the spring-positioning device 6 that is fixed on the thicker wire.The outer end of thicker wire 4 also is provided with vertical stationary installation, described vertical stationary installation is comprised of perpendicular positioning bar 12 and location-plate 11, one end of perpendicular positioning bar 12 is provided with magnet, the other end connects by screw rod 13 connection and positioning plates 11, the other end of location-plate 11 is connected on the thicker wire 4, and the both sides of perpendicular positioning plate 11 respectively are provided with a nut on the described screw rod 13; Described intermediate plate is measured on the pointer 11 and also is provided with auxiliary locator 9, the bottom of described auxiliary locator 9 is the semicircle arcuation corresponding with the steel strand wires shape, the upper end of described reading indication pointer is socketed on the thicker wire, the lower end is close on the Steel Ruler 3, it is on the circular cover joint thicker wire that affiliated intermediate plate is measured pointer 8 upper ends, Steel Ruler can be slided along thicker wire 4, fixed part and thicker wire 4 pass through Bolt to position, institute's reading indication pointer 3 can slide along finer wire 5, and reading indication pointer 3 passes through Bolt to position with finer wire 5.
When using this intermediate plate measurement mechanism, be adsorbed on the end cap with the vertical stationary installation with high-strength magnet 10 at front clip type jack tail end, with the verticality of assurance device.This device front end adopts the high strength magnet adsorption of thicker wire 4 ends on tension tool anchor ring surface, guarantee to be placed in the moveable anchor ring surface in the outside, two tool clamping piece gaps, the semicircle cambered surface of steel strand wires auxiliary locator 9 is close to steel strand wires, then intermediate plate is measured pointer 8 and is automatically dropped on the tool clamping piece surface, and automatically head on intermediate plate by the rear end spring and measure pointer 8 to follow tool clamping piece mobile in real time, and the reading indication pointer 3 that drives the rear end by finer wire 5 slides along Steel Ruler 1 surperficial graduated one side, stretching along with stretch-draw jack, the oil cylinder piston elongation, it is mobile laterally to promote outer shell, intermediate plate progressively clamps steel strand wires, causing intermediate plate to expose value changes, spring 7 drives pointer at the Steel Ruler surface sliding, and the workman can direct-reading go out the reading at each reference mark of stretch-draw, and accomplishes Real Time Monitoring.The workman only needs the numerical value of pointer indication on moment direct-reading Steel Ruler, need not hand-held Steel Ruler operation, avoids occurring relatively large deviation; Both guarantee personal security, accelerated again construction speed, also can effectively prevent process deviation simultaneously, avoided device damage.
When for the first time using this instrument, should be according to the instrument anchor ring to the length adjustment Steel Ruler 1 of lifting jack rear end end cap and the seat of reading indication pointer 3, guarantee that the omnidistance pointer of stretch-draw all outside the lifting jack end cap, then fixes Steel Ruler 1.
Adjust intermediate plate and measure the position of pointer 8, make the most advanced and sophisticated high-strength magnet end face of front end at grade, adjust finer wire 5, make certain round values on the reading indication pointer 3 corresponding Steel Ruler 1, then fix the position of reading pointer on finer wire 5.
Adjust first and fixingly can adopt paint or glue to fix the fixing silk of each bolt after complete, avoid loosening.Answer in routine duties the fastening degree of each point of fixity of running check, avoid loosened screw to cause measuring inaccurate.
The verticality stationary installation can guarantee the verticality of reading measuring apparatus, if but find that when operation jack cylinder rotates, the high-strength magnet of the verticality stationary installation of can sliding gently makes reading measuring apparatus keep vertical, reduces measured deviation.
Claims (8)
1. the clip type jack intermediate plate exposes value measurement mechanism before one kind, comprise Steel Ruler (1), it is characterized in that: the thicker wire (4) of clip type jack inside before described Steel Ruler (1) is arranged with in parallel deeply by fixed part, the intermediate plate measurement pointer (11) that the end of clip type jack is provided with high-strength magnet (10) that can thicker wire (4) is fixing and moves with intermediate plate before thicker wire (4) gos deep into, measuring pointer (11) connects and can indicate pointer (3) at the reading that Steel Ruler is slided by finer wire (5), the lower end of reading indication pointer (3) is pointed to the steel plate intermediate plate and is measured the spring (7) that the rear side of pointer (11) is provided with keeping clip measurement pointer (11) and intermediate plate close contact, spring (7) is socketed on the thicker wire, and the other end of spring (7) is provided with the spring-positioning device (6) that is fixed on the thicker wire.
2. front clip type jack intermediate plate according to claim 1 exposes value measurement mechanism, it is characterized in that: the outer end of described thicker wire (4) also is provided with vertical stationary installation.
3. front clip type jack intermediate plate according to claim 2 exposes value measurement mechanism, it is characterized in that: described vertical stationary installation is comprised of perpendicular positioning bar (12) and location-plate (11), one end of perpendicular positioning bar (12) is provided with magnet, the other end connects by screw rod (13) connection and positioning plate (11), the other end of location-plate (11) is connected on the thicker wire (4), and the both sides of the upper perpendicular positioning plate (11) of described screw rod (13) respectively are provided with a nut.
4. front clip type jack intermediate plate according to claim 1 exposes value measurement mechanism, it is characterized in that: described intermediate plate is measured on the pointer (11) and also is provided with auxiliary locator (9).
5. front clip type jack intermediate plate according to claim 4 exposes value measurement mechanism, it is characterized in that: the bottom of described auxiliary locator (9) is the semicircle arcuation corresponding with the steel strand wires shape.
6. front clip type jack intermediate plate according to claim 1 exposes value measurement mechanism, it is characterized in that: the upper end of described reading indication pointer (3) is socketed on the thicker wire, the lower end is close to (3) on the Steel Ruler, and it is on the circular cover joint thicker wire that affiliated intermediate plate is measured pointer (8) upper end.
7. front clip type jack intermediate plate according to claim 1 exposes value measurement mechanism, it is characterized in that: Steel Ruler (1) can be slided along thicker wire (4), and fixed part and thicker wire (4) pass through Bolt to position.
8. front clip type jack intermediate plate according to claim 1 exposes value measurement mechanism, it is characterized in that: institute's reading indication pointer (3) can slide along finer wire (5), and reading indication pointer (3) passes through Bolt to position with finer wire (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210311900.9A CN102853735B (en) | 2012-08-29 | 2012-08-29 | Clamping sheet exposing value measuring device of front clamping type jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210311900.9A CN102853735B (en) | 2012-08-29 | 2012-08-29 | Clamping sheet exposing value measuring device of front clamping type jack |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102853735A true CN102853735A (en) | 2013-01-02 |
| CN102853735B CN102853735B (en) | 2015-04-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210311900.9A Active CN102853735B (en) | 2012-08-29 | 2012-08-29 | Clamping sheet exposing value measuring device of front clamping type jack |
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| CN (1) | CN102853735B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105384103A (en) * | 2015-12-28 | 2016-03-09 | 湖南联智桥隧技术有限公司 | Displacement sensor used for tensioning jack |
| CN113982194A (en) * | 2021-11-05 | 2022-01-28 | 衡阳市新德力交通材料有限公司 | Anchor for flat prestressed tendon |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS593208A (en) * | 1982-06-29 | 1984-01-09 | Kawasaki Steel Corp | Calibrating device for coupling length measuring device |
| CN201095580Y (en) * | 2007-08-30 | 2008-08-06 | 中铁二十三局集团有限公司 | Stretching jack |
| CN202116235U (en) * | 2011-05-19 | 2012-01-18 | 中铁十局集团有限公司 | Fore-cramp jack |
| CN202304788U (en) * | 2011-10-20 | 2012-07-04 | 上海力远计算机科技有限公司 | Device for measuring prestress tension elongation |
| CN202709956U (en) * | 2012-08-29 | 2013-01-30 | 中铁十局集团有限公司 | Device for measuring exposure value of clamping piece of front clamp type jack |
-
2012
- 2012-08-29 CN CN201210311900.9A patent/CN102853735B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS593208A (en) * | 1982-06-29 | 1984-01-09 | Kawasaki Steel Corp | Calibrating device for coupling length measuring device |
| CN201095580Y (en) * | 2007-08-30 | 2008-08-06 | 中铁二十三局集团有限公司 | Stretching jack |
| CN202116235U (en) * | 2011-05-19 | 2012-01-18 | 中铁十局集团有限公司 | Fore-cramp jack |
| CN202304788U (en) * | 2011-10-20 | 2012-07-04 | 上海力远计算机科技有限公司 | Device for measuring prestress tension elongation |
| CN202709956U (en) * | 2012-08-29 | 2013-01-30 | 中铁十局集团有限公司 | Device for measuring exposure value of clamping piece of front clamp type jack |
Non-Patent Citations (2)
| Title |
|---|
| 杨基好等: "新型前卡式千斤顶快速张拉施工技术", 《安徽建筑》, no. 6, 31 December 2011 (2011-12-31) * |
| 谢劲辉: "桥梁预应力钢绞线张拉实际伸长量测量方法讨论", 《黑龙江交通科技》, no. 12, 31 December 2009 (2009-12-31), pages 80 - 81 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105384103A (en) * | 2015-12-28 | 2016-03-09 | 湖南联智桥隧技术有限公司 | Displacement sensor used for tensioning jack |
| CN113982194A (en) * | 2021-11-05 | 2022-01-28 | 衡阳市新德力交通材料有限公司 | Anchor for flat prestressed tendon |
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| Publication number | Publication date |
|---|---|
| CN102853735B (en) | 2015-04-01 |
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Effective date of registration: 20170616 Address after: 250001 No. 167 Station Street, Tianqiao District, Shandong, Ji'nan Patentee after: China Railway ten Bureau Group First Engineering Co., Ltd. Address before: 250001 building, No. 7, Shun Thai Plaza, Lixia District, Ji'nan, Shandong Patentee before: China Railway 10th Bureau Group Co., Ltd. |