CN102853735B - 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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- CN102853735B CN102853735B CN201210311900.9A CN201210311900A CN102853735B CN 102853735 B CN102853735 B CN 102853735B CN 201210311900 A CN201210311900 A CN 201210311900A CN 102853735 B CN102853735 B CN 102853735B
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- intermediate plate
- type jack
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- 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 measuring the front clip type jack intermediate plate amount of exposing variable quantity in stretching process.
Background technology
When pre-stress construction adopts jack tension easily because of misoperation or material cause occur stripped thread or steel strand wires disrumpent feelings, misoperation also easily causes oil cylinder detonation, and lifting jack set bolt flies out the accident potential such as to hurt sb.'s feelings; Therefore people will away from lifting jack during stretch-draw, especially staff or head is avoided to appear at lifting jack rear end when stretch-draw, also should wooden or irony protective shield be set in lifting jack rear end when jack tension, avoids intermediate plate, steel strand wires or lifting jack set bolt etc. to fly out and hurt sb.'s feelings.Need measure jack cylinder during jack tension construction to extend and the changing value of the intermediate plate amount of exposing, by calculating the actual elongation value determining steel strand wires, and actual elongation value and theoretic elongation deviation are calculated in inspection, make its be no more than ± 6%.And front clip type jack is as a prestress lifting jack effectively can saving the outer active length of steel strand wires anchor, its moveable anchor and tool clamping piece are installed in lifting jack inner chamber, the protruded length changing value of intermediate plate is not easily measured during work, measure as adopted conventional hand-held Steel Ruler, the head of operator, hand will be exposed to lifting jack and twisted wire rear end, if once occur misoperation or material disrumpent feelings, the generation of personnel casualty accidents can be caused; And bad visibility in lifting jack inner chamber, what cannot guarantee each measurement is all same tool clamping piece, in original stretching process, the variable quantity of intermediate plate is just very little, if what measure is not same intermediate plate, due to intermediate plate self otherness when arranging, can not ensure that the end of all intermediate plates is on same facade, thus form the intermediate plate variable quantity of mistake, also needing the illuminationss such as electric torch to assist when adding measurement, there is safety and hidden danger of quality in flow chart.
Summary of the invention
For above-mentioned technical matters, the invention provides one and start to measure without the need to people, the variable quantity of intermediate plate is along with stretching process simultaneous display, and the front clip type jack intermediate plate of convenient reading exposes real-time measurement apparatus.
Before a kind of, clip type jack intermediate plate exposes value measurement mechanism, comprise Steel Ruler, it is characterized in that: described Steel Ruler is arranged with the thicker wire of clip type jack inside deeply in parallel by fixed part, thicker wire deeply before the end of clip type jack be provided with the high-strength magnet that thicker wire can be fixed and the intermediate plate measurement pointer with intermediate plate movement, measure pointer and connected the reading instruction pointer that can slide in Steel Ruler by finer wire, the rear side of the lower end sensing steel plate intermediate plate measurement pointer of reading instruction pointer is provided with the spring that keeping clip measures pointer and intermediate plate close contact, spring housing is connected on thicker wire, the other end of spring is provided with the spring-positioning device be fixed on thicker wire.
This intermediate plate measurement mechanism, Steel Ruler is fixed by thicker wire, and the inside of clip type jack is fixed on tension tool anchor ring surface by high strength magnet before being goed deep into one end of thicker wire, and be provided with one at leading portion and move with intermediate plate and pointer measured by the intermediate plate of movement, this intermediate plate measures pointer by being provided with spring in its back-end, make intermediate plate measure pointer to be close to constantly on intermediate plate, intermediate plate stings tight steel strand wires gradually in stretching process, steel strand wires have a reverse pulling force to intermediate plate, intermediate plate is caused to have individual displacement relative to instrument anchor ring, this device is arranged to measure this displacement, because this displacement is in the inside of front clip type jack, this device be by arrange intermediate plate measure pointer be close to constantly on intermediate plate, the rear portion measuring pointer at intermediate plate connects reading instruction pointer by finer wire, measuring pointer by intermediate plate drives reading instruction pointer to move along Steel Ruler, can show that intermediate plate exposes the variable quantity of value, the difference of intermediate plate protruded length just can have been measured respectively, more accurately measuring error is reduced in order to make measurement result.
In order to make measurement result more accurate, reduce measuring error, described intermediate plate is measured on pointer and is also provided with auxiliary locator, the bottom of described auxiliary locator is the semicircle arcuation corresponding with steel strand wires shape, the semicircle cambered surface of steel strand wires auxiliary locator is close to steel strand wires, then intermediate plate measure pointer automatically drop on tool clamping piece surface, and by rear end spring assembly automatically head on measure pointer follow tool clamping piece movement in real time, the outer end of thicker wire is also provided with vertical stationary installation, described vertical stationary installation is made up of perpendicular positioning bar and location-plate, one end of perpendicular positioning bar is provided with magnet, the other end is connected by screw rod connection and positioning plate, the other end of location-plate is connected on thicker wire, on described screw rod, the both sides of perpendicular positioning plate are respectively provided with a nut, the upper end of described reading instruction pointer is socketed on thicker wire, lower end is close in Steel Ruler, pointer upper end measured by affiliated intermediate plate is on circular cover joint thicker wire, front end high strength magnet and rear end steel ruler are linked 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 instruction pointer slides all thereon, ensure that right alignment, reduce measured deviation, Steel Ruler can be slided along thicker wire, fixed part and thicker wire pass through Bolt to position, fruit is measured for the ease of measuring and checking, institute's reading instruction pointer can slide along finer wire, reading instruction pointer and finer wire pass through Bolt to position, so just can before stretch-draw useless, make reading pointer on integer scale.
Tool of the present invention has the following advantages:
1, simple installation, starts during without the need to measuring at every turn to measure, laborsaving;
2, the intermediate plate amount of exposing in stretch-draw each stage can detect in real time, is convenient to observe;
3, measurement result direct-reading, saves Measuring Time, accelerating construction progress;
4, Steel Ruler is perpendicular to end cap, the reading error that when avoiding manual operation, Steel Ruler out of plumb is brought;
5, during stretch-draw personnel away from lifting jack, without potential safety hazard.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further described:
Fig. 1 is complete layout of the present invention;
Fig. 2 is verticality stationary installation schematic diagram of the present invention;
Fig. 3 is reading measuring apparatus schematic diagram of the present invention.
In Fig. 1: 1, Steel Ruler, 2, Steel Ruler stationary installation, 3, reading instruction pointer, 4, thicker wire, 5, finer wire, 6, spring-positioning device, 7, spring, 8, pointer measured by intermediate plate, 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: described Steel Ruler 1 is arranged with the thicker wire 4 of clip type jack inside deeply in parallel by fixed part, Steel Ruler can be slided along thicker wire 4, fixed part and thicker wire 4 pass through Bolt to position, before thicker wire 4 gos deep into, the end of clip type jack is provided with and can measures pointer 11 by high-strength magnet 10 fixing for thicker wire 4 with the intermediate plate of intermediate plate movement, measure pointer 11 and connected the reading instruction pointer 3 that can slide in Steel Ruler by finer wire 5, the rear side of the lower end sensing steel plate intermediate plate measurement pointer 11 of reading instruction pointer is provided with the spring 7 that keeping clip measures pointer 11 and intermediate plate close contact, spring 7 is socketed on thicker wire, the other end of spring 7 is provided with the spring-positioning device 6 be fixed on thicker wire.The outer end of thicker wire 4 is also provided with vertical stationary installation, described vertical stationary installation is made up of perpendicular positioning bar 12 and location-plate 11, one end of perpendicular positioning bar 12 is provided with magnet, the other end is connected by screw rod 13 connection and positioning plate 11, the other end of location-plate 11 is connected on thicker wire 4, and on described screw rod 13, the both sides of perpendicular positioning plate 11 are respectively provided with a nut; Described intermediate plate is measured on pointer 11 and is also provided with auxiliary locator 9, the bottom of described auxiliary locator 9 is the semicircle arcuation corresponding with steel strand wires shape, the upper end of described reading instruction pointer is socketed on thicker wire, lower end to be close in Steel Ruler 3, pointer 8 upper end measured by affiliated intermediate plate is on circular cover joint thicker wire, Steel Ruler can be slided along thicker wire 4, fixed part and thicker wire 4 pass through Bolt to position, institute's reading instruction pointer 3 can slide along finer wire 5, and reading instruction pointer 3 passes through Bolt to position with finer wire 5.
When using this intermediate plate measurement mechanism, be adsorbed on end cap, with the verticality of assurance device in the vertical stationary installation of the high-strength magnet 10 of front clip type jack tail end band.This device front end adopts the high strength magnet adsorption of thicker wire 4 end on tension tool anchor ring surface, guarantee the moveable anchor ring surface be placed in 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 tool clamping piece surface, and by rear end spring automatically head on intermediate plate measure pointer 8 follow tool clamping piece movement in real time, and drive the reading of rear end to indicate pointer 3 to slide along the surperficial graduated one side of Steel Ruler 1 by finer wire 5, along with the stretching of stretch-draw jack, oil cylinder piston extends, promote outer shell to move laterally, intermediate plate progressively clamps steel strand wires, intermediate plate is caused to expose value change, spring 7 drives pointer at Steel Ruler surface sliding, workman direct-reading can go out the reading at each reference mark of stretch-draw, and accomplish real-time monitoring.Workman only need in moment direct-reading Steel Ruler the numerical value of pointer indication, operate without the need to hand-held Steel Ruler, avoid occurring relatively large deviation; Both ensure that personal security, accelerated construction speed again, and also effectively can prevent process deviation simultaneously, avoid device damage.
When using this instrument for the first time, according to the length adjustment Steel Ruler 1 of instrument anchor ring to lifting jack rear end end cap and the seat of reading instruction pointer 3, should guarantee that the omnidistance pointer of stretch-draw is all outside lifting jack end cap, then fixes Steel Ruler 1.
The position of pointer 8 measured by adjustment intermediate plate, makes the high-strength magnet end face of nose tip at grade, adjustment finer wire 5, makes reading indicate certain round values in the corresponding Steel Ruler 1 of pointer 3, then fixes the position of reading pointer on finer wire 5.
Paint or glue can be adopted to fix each bolt after adjustment is first fixing and fix silk, avoid loosening.Answer the tightness of each point of fixity of running check in routine duties, avoid loosened screw to cause measurement inaccurate.
Verticality stationary installation can ensure the verticality of reading measuring apparatus, if but find that when operating jack cylinder rotates, the high-strength magnet of verticality stationary installation of can sliding gently, make reading measuring apparatus keep vertical, reduce measured deviation.
Claims (8)
1. clip type jack intermediate plate exposes value measurement mechanism before one kind, comprise Steel Ruler (1), it is characterized in that: described Steel Ruler (1) is arranged with the thicker wire (4) of clip type jack inside deeply in parallel by fixed part, before thicker wire (4) gos deep into, the end of clip type jack is provided with and can measures pointer (8) by high-strength magnet (10) fixing for thicker wire (4) with the intermediate plate of intermediate plate movement, intermediate plate is measured pointer (8) and is connected reading instruction pointer (3) that can slide in Steel Ruler by finer wire (5), Steel Ruler is pointed in the lower end of reading instruction pointer (3), the rear side that pointer (8) measured by intermediate plate is provided with the spring (7) that keeping clip measures pointer (8) and intermediate plate close contact, spring (7) is socketed on thicker wire, the other end of spring (7) is provided with the spring-positioning device (6) be fixed on 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) is also 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 made up of perpendicular positioning bar (12) and location-plate (11), one end of perpendicular positioning bar (12) is provided with magnet, the other end is connected with one end of location-plate (11) by screw rod (13), the other end of location-plate (11) is connected on thicker wire (4), and the both sides of the upper perpendicular positioning plate (11) of described screw rod (13) are respectively 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 pointer (8) and is also 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 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 instruction pointer (3) is socketed on thicker wire, lower end is close in Steel Ruler (1), and the upper end that pointer (8) measured by described intermediate plate is circular being socketed on thicker wire.
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: described reading instruction pointer (3) can be slided along finer wire (5), and reading instruction pointer (3) and finer wire (5) pass through Bolt to position.
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 CN102853735A (en) | 2013-01-02 |
| CN102853735B true 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) |
Families Citing this family (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 (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Family Cites Families (1)
| 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 |
-
2012
- 2012-08-29 CN CN201210311900.9A patent/CN102853735B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
|---|
| 新型前卡式千斤顶快速张拉施工技术;杨基好等;《安徽建筑》;20111231(第6期);第67,68,70页 * |
| 桥梁预应力钢绞线张拉实际伸长量测量方法讨论;谢劲辉;《黑龙江交通科技》;20091231(第12期);第80-81页 * |
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| CN102853735A (en) | 2013-01-02 |
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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. |