CN207600442U - A kind of backsight levelling rod fixing device of bridge static loading test deflection metrology - Google Patents

A kind of backsight levelling rod fixing device of bridge static loading test deflection metrology Download PDF

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Publication number
CN207600442U
CN207600442U CN201721901083.7U CN201721901083U CN207600442U CN 207600442 U CN207600442 U CN 207600442U CN 201721901083 U CN201721901083 U CN 201721901083U CN 207600442 U CN207600442 U CN 207600442U
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CN
China
Prior art keywords
rod
pedestal
fixing device
loading test
static loading
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Application number
CN201721901083.7U
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Chinese (zh)
Inventor
李明骏
胡正东
王轮
王剑
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Sichuan Zhentong Testing Co.,Ltd.
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Sichuan Shaking Road Engineering Testing Consulting Co Ltd
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Priority to CN201721901083.7U priority Critical patent/CN207600442U/en
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Abstract

The utility model discloses a kind of backsight levelling rod fixing devices of bridge static loading test deflection metrology, which is characterized in that including:Pedestal is equilateral triangle, and level(l)ing mechanism is respectively arranged on three angles of the pedestal;Levelling rod clamping device is rotatably connected on the pedestal.The utility model is designed using triangle base, effectively minimizes the center of whole device, simultaneously because itself is steel construction, weight is larger also to have higher stability;It measures backsight elevation relative to traditional artificial run back and forth with binding-type fixing means, the labor intensity of staff is reduced, is improved work efficiency, reduces the disturbance of extraneous factor, and remain the verticality of levelling rod, improve the validity and accuracy of experiment.

Description

A kind of backsight levelling rod fixing device of bridge static loading test deflection metrology
Technical field
The utility model belongs to levelling rod field of fixation devices, and in particular to after bridge static loading test deflection metrology Depending on levelling rod field of fixation devices.
Background technology
With the continuous development of China's communication, China is in the peak period of expressway construction, in engineering construction Need that the bridge built is more and more, and Size estimation is higher and higher, it is also more stringent mutually to cope with its detection, to ensure engineering matter Amount.
Bridge static loading test is by load test, and structural response of the record bridge under action of static load, is bridge structure Technology status and Bearing Capacity Evaluation and in the future maintenance repair, reinforce offer scientific basis and support.
So far the deflection metrology in bridge static loading test throws away that there are problems:
First, in current bridge static loading test, majority needs manually to be run back and forth come the elevation for measuring backsight measuring point, Not only increase the working strength of survey crew, it is also possible to increase the inaccuracy of measurement.
Second is that fixing the levelling rod of backsight measuring point with adhesive tape banding fixed or tripod, these operating methods easily make level Ruler wind or it is artificial under the action of generate disturbance, the fixing device do not stablized causes measurement data to have deviation.
Utility model content
One purpose of the utility model is to solve at least the above and/or defect, and provide and at least will be described later The advantages of.
In order to realize these purposes and other advantages according to the present utility model, a kind of bridge static loading test amount of deflection is provided Measuring backsight levelling rod fixing device includes:
Pedestal is equilateral triangle, and level(l)ing mechanism is respectively arranged on three angles of the pedestal;
Levelling rod clamping device is rotatably connected on the pedestal.
Preferably, wherein, the level(l)ing mechanism includes:The first threaded hole being arranged on each angle, described Being passed through in one threaded hole has matched first screw rod, and the first screw rod upper end is equipped with rotary knob rod, first screw rod Lower end is stabilizer blade.
Preferably, wherein, the levelling rod clamping device includes:The rod support being rotatably connected with pedestal, which is provided with Swingable ruler slot, the ruler slot both sides are relatively set with the first angle steel and the second angle steel, and first angle steel is equipped with and opens up There are the first holding holes, interior pass through has matched first clamping screw rod;Second angle steel is equipped with and offers second Holding holes, in pass through have it is matched second clamping screw rod, it is described first clamping screw rod with second clamping screw rod outside End is respectively equipped with knob, inner end is respectively equipped with rubber sheet gasket.
Preferably, wherein, the mode that is rotatably connected of the rod support and pedestal is:The base center is equipped with round recessed Slot, wherein dress swivel bearing of feeling at ease, the rod support lower end is equipped with rod piece, and the rod piece, which is fixed, to be inserted into swivel bearing;The ruler The lower part of seat is fixedly connected with the gear with its equal radius, and vernier knob is equipped with beside the rod support, the vernier knob Lower end is fixedly connected with the gear that tunes being located in pedestal, and the gear that tunes engages connection with the gear of rod support lower part.
Preferably, wherein, the connection mode of waving of the ruler slot and rod support is:The ruler trench bottom is equipped with half knuckle-tooth It takes turns, mounting groove is offered among the rod support, the rod piece that the ruler slot passes through two bottom sides is inserted into the hole on installation cell wall It is waved with realizing, the rod support side is equipped with and waves vernier knob, is fixedly connected with the wobble gear in rod support, described to wave Gear engages connection with the semi-circle gear of ruler slot.
Preferably, wherein, the branch underfooting is fixed with rubber block.
Preferably, wherein, the pedestal is steel base.
The utility model includes at least following advantageous effect:This levelling rod fixing device is designed using big quality pedestal, Effectively the center of whole device is minimized, area occupied is small, makes it that will likely be reduced by external influence when in use, Simultaneously because itself is steel construction, weight is larger also to have higher stability;The utility model is relative to traditional Artificial run back and forth measures backsight elevation with binding-type fixing means, reduces the labor intensity of staff, improves work Efficiency effectively raises the vertical stability of levelling rod, reduces the disturbance of extraneous factor, and remains the place of levelling rod In absolute vertical state, the validity and accuracy of experiment are improved.
Part is illustrated to embody by the further advantage, target and feature of the utility model by following, and part will also pass through Research and practice to the utility model and be understood by the person skilled in the art.
Description of the drawings:
Fig. 1 is fixing device vertical view provided by the utility model;
Fig. 2 is fixing device front view one provided by the utility model;
Fig. 3 is fixing device front view two provided by the utility model;
Fig. 4 is rod support provided by the utility model and base connector schematic diagram figure;
Fig. 5 is ruler slot provided by the utility model and rod support connection structure diagram.
Specific embodiment:
The following describes the utility model in further detail with reference to the accompanying drawings, to enable those skilled in the art with reference to explanation Book word can be implemented according to this.
It should be appreciated that such as " having ", "comprising" and " comprising " term used herein do not allot one or more The presence or addition of a other element or combinations.
A kind of backsight levelling rod of bridge static loading test deflection metrology provided by the utility model is fixed as shown in Figs. 1-5 Device, including:
Pedestal 1 is equilateral triangle, and level(l)ing mechanism is respectively arranged on three angles of the pedestal 1;
Levelling rod clamping device 2 is rotatably connected on the pedestal 1.
Operation instruction:Carrying out the measurement of bridge static deflection or other measurement tasks for needing to be fixed temporarily backsight levelling rod When, backsight levelling rod fixing device is positioned on selected position, then levelling rod fixed placement in levelling rod is clamped and is filled It puts on 2, then by the level(l)ing mechanism on three corners of adjustment base, levelling rod air level is made to occupy spirit level center, is protected Card levelling rod is in absolute vertical state, after measuring experiment, unclamps the levelling rod being placed on levelling rod clamping device 2, Then levelling rod fixing device is put away, this levelling rod fixing device reduces the labor intensity of staff, improves Working efficiency effectively raises the vertical stability of levelling rod, reduces the disturbance of extraneous factor, and remains levelling rod In absolute vertical state, the validity and accuracy of experiment are improved.
In above-mentioned technical proposal, the level(l)ing mechanism includes:The first threaded hole 101 being arranged on each angle, Being passed through in first threaded hole 101 has matched first screw rod 102, and 101 upper end of the first screw rod is equipped with knob Bar 103, the first screw rod lower end are stabilizer blade, when carrying out Level tune, pass through the rotary knob rod on the first screw rod of knob 102 Pedestal 1 is adjusted to level by 103.Such mode is a kind of preferable example, but not limited to this, it is appropriate to carry out as needed It replaces and/or changes.
In above-mentioned technical proposal, the levelling rod clamping device 2 includes:The rod support 201 being rotatably connected with pedestal 1, Swingable ruler slot 202 is which is provided with, 202 both sides of ruler slot are relatively set with the first angle steel 203 and the second angle steel 204, institute The first angle steel 203 is stated equipped with the first holding holes are offered, interior pass through has matched first clamping screw rod 205;Institute The second angle steel 204 is stated equipped with the second holding holes are offered, interior pass through has matched second clamping screw rod 206, institute It states the first clamping screw rod 205 and the outer end of the second clamping screw rod 206 is respectively equipped with knob 207, inner end is respectively equipped with rubber sheet gasket 208, when in use, the first clamping screw rod 205 is made to clamp screw rod 206 with second by knob 207 and unclamp, then erect levelling rod It is directly inserted, then the first clamping screw rod 205 and second is clamped by the opposite folder of screw rod 206 by knob 207 and holds together rubber sheet gasket 208, rubber sheet gasket 208 resists levelling rod with fixation.Such mode is a kind of preferable example, but not limited to this, it can root It suitably replaces and/or changes according to progress is needed.
In above-mentioned technical proposal, the mode that is rotatably connected of the rod support 201 and pedestal 1 is:1 center of pedestal is set There is circular groove, wherein dress swivel bearing 105 of feeling at ease, 201 lower end of rod support is equipped with rod piece 211, and the rod piece 211, which is fixed, to be inserted Enter in swivel bearing 105;The lower part of the rod support 201 is fixedly connected with and the gear of its equal radius 212, the rod support 201 Side is equipped with vernier knob 213, and the lower end of the vernier knob 213 is fixedly connected with the gear 214 that tunes being located in pedestal 1, The gear 214 that tunes engages connection with the gear 212 of 201 lower part of rod support, this structure, which essentially consists in, to be finely adjusted, when level is adjusted When section mechanism cannot accurately adjust levelling rod, the fine tuning in transverse direction can be carried out to it by this vernier knob 213.Such mode is only It is a kind of preferable example, but not limited to this, it can carry out suitably replacing and/or changing as needed.
In above-mentioned technical proposal, the connection mode of waving of the ruler slot 220 and rod support 201 is:220 bottom of ruler slot Portion is equipped with semi-circle gear 221, offers mounting groove among the rod support 201, the ruler slot 220 is inserted by the rod piece of two bottom sides Enter in the hole installed on cell wall and waved with realizing, 201 side of rod support is equipped with and waves vernier knob 221, with rod support 201 Interior wobble gear 222 is fixedly connected, and the wobble gear 222 engages connection with the semi-circle gear 221 of ruler slot 220, this structure It essentially consists in and is finely adjusted, when level(l)ing mechanism accurately cannot adjust levelling rod, it is right vernier knob 221 can be waved by this It is finely adjusted.Such mode is a kind of preferable example, but not limited to this, can carry out as needed suitably replace and/ Or modification.
In above-mentioned technical proposal, the branch underfooting is fixed with rubber block, reduces abrasion, increases stability.Such side Formula is a kind of preferable example, but not limited to this, it can carry out suitably replacing and/or changing as needed.
In above-mentioned technical proposal, the pedestal is steel base, increases pedestal weight, make device is more steady, be not easy by Ectocine.Such mode is a kind of preferable example, but not limited to this, can carry out as needed suitably replace and/or Modification.
Number of devices and treatment scale described herein are the explanations for simplifying the utility model.To the utility model The application of backsight levelling rod fixing device of bridge static loading test deflection metrology, modifications and variations are to those skilled in the art It is obvious for member.
Although the embodiment of the utility model is disclosed as above, it is not restricted in specification and embodiment Listed utilization, it can be applied to various fields suitable for the present invention completely, for those skilled in the art, Other modification is easily implemented, therefore without departing from the general concept defined in the claims and the equivalent scope, this reality Specific details and legend shown and described herein are not limited to novel.

Claims (7)

1. a kind of backsight levelling rod fixing device of bridge static loading test deflection metrology, which is characterized in that including:
Pedestal is equilateral triangle, and level(l)ing mechanism is respectively arranged on three angles of the pedestal;
Levelling rod clamping device is rotatably connected on the pedestal.
2. the backsight levelling rod fixing device of bridge static loading test deflection metrology as described in claim 1, which is characterized in that institute Level(l)ing mechanism is stated to include:The first threaded hole being arranged on each angle, interior pass through of first threaded hole have and its phase The first screw rod matched, the first screw rod upper end are equipped with rotary knob rod, and the first screw rod lower end is stabilizer blade.
3. the backsight levelling rod fixing device of bridge static loading test deflection metrology as described in claim 1, which is characterized in that institute Levelling rod clamping device is stated to include:The rod support being rotatably connected with pedestal which is provided with swingable ruler slot, the ruler slot both sides Be relatively set with the first angle steel and the second angle steel, first angle steel is equipped with and offers the first holding holes, in pass through have with Its first clamping screw rod to match;Second angle steel is equipped with and offers the second holding holes, and interior pass through has and its phase The outer end of the second clamping screw rod matched, the first clamping screw rod and the second clamping screw rod is respectively equipped with knob, inner end and sets respectively There is rubber sheet gasket.
4. the backsight levelling rod fixing device of bridge static loading test deflection metrology as claimed in claim 3, which is characterized in that institute The mode that is rotatably connected for stating rod support and pedestal is:The base center is equipped with circular groove, wherein dress swivel bearing of feeling at ease, institute Rod support lower end is stated equipped with rod piece, the rod piece, which is fixed, to be inserted into swivel bearing;The lower part of the rod support is fixedly connected with same with it The gear of radiuses is waited, vernier knob is equipped with beside the rod support, the lower end of the vernier knob tunes tooth with being located in pedestal Wheel is fixedly connected, and the gear that tunes engages connection with the gear of rod support lower part.
5. the backsight levelling rod fixing device of bridge static loading test deflection metrology as claimed in claim 3, which is characterized in that institute The connection mode of waving for stating ruler slot and rod support is:The ruler trench bottom is equipped with semi-circle gear, and peace is offered among the rod support Tankage, the ruler slot are inserted into the hole installed on cell wall by the rod piece of two bottom sides and are waved with realizing, the rod support side It equipped with vernier knob is waved, is fixedly connected with the wobble gear in rod support, the semi-circle gear of the wobble gear and ruler slot is nibbled Close connection.
6. the backsight levelling rod fixing device of bridge static loading test deflection metrology as claimed in claim 2, which is characterized in that institute It states branch underfooting and is fixed with rubber block.
7. the backsight levelling rod fixing device of bridge static loading test deflection metrology as described in claim 1, which is characterized in that institute Pedestal is stated as steel base.
CN201721901083.7U 2017-12-29 2017-12-29 A kind of backsight levelling rod fixing device of bridge static loading test deflection metrology Active CN207600442U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721901083.7U CN207600442U (en) 2017-12-29 2017-12-29 A kind of backsight levelling rod fixing device of bridge static loading test deflection metrology

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721901083.7U CN207600442U (en) 2017-12-29 2017-12-29 A kind of backsight levelling rod fixing device of bridge static loading test deflection metrology

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Publication Number Publication Date
CN207600442U true CN207600442U (en) 2018-07-10

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110440114A (en) * 2018-11-30 2019-11-12 山东建筑大学 A kind of device being adapted to fixed displacement meter under complex situations

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110440114A (en) * 2018-11-30 2019-11-12 山东建筑大学 A kind of device being adapted to fixed displacement meter under complex situations

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Address after: 621000 No. 59 Qinglong Avenue, Fucheng District, Sichuan, Mianyang

Patentee after: Sichuan Zhentong Testing Co.,Ltd.

Address before: 621000 No. 59 Qinglong Avenue, Fucheng District, Sichuan, Mianyang

Patentee before: SICHUAN ZHENTONG HIGHROAD PROJECT EXPERIMENTATION & DETECTION Co.,Ltd.

CP01 Change in the name or title of a patent holder