CN220230355U

CN220230355U - Crack width gauge

Info

Publication number: CN220230355U
Application number: CN202322145472.3U
Authority: CN
Inventors: 魏旭; 张学钢; 曾庆伟; 高晶晶; 王安东; 李常茂
Original assignee: Shaanxi Railway Institute
Current assignee: Shaanxi Railway Institute
Priority date: 2023-08-04
Filing date: 2023-08-04
Publication date: 2023-12-22
Anticipated expiration: 2033-08-04

Abstract

The utility model provides a crack width gauge, which relates to the technical field of building measuring tools and comprises a measuring instrument handle; the end part of the measuring instrument handle is fixedly connected with a measuring cylinder; the measuring driving piece is fixedly connected to the middle of the upper surface of the measuring cylinder through a screw; the linkage gear is fixedly connected to the lower end of the output shaft of the measurement driving piece; the two synchronous push rods are both in sliding connection with the inside of the measuring cylinder; the bridge crack measuring device in this application measures the simple operation, convenient to use, and measurement accuracy is high, does benefit to and accomodates, has good practicality, has solved the cracked measurement of traditional bridge and has generally measured at crack surface through the dipperstick laminating, but is located the crack of bridge bottom, bridge side when measuring, and the measurement personnel is inconvenient for contacting crack position, need receive lifting tool or remove to crack position with the help of the safety belt and measure, and measurement mode is not convenient enough, has the problem of certain risk.

Description

Crack width gauge

Technical Field

The utility model belongs to the technical field of building measuring tools, and particularly relates to a crack width measuring instrument.

Background

The bridge is easy to age along with the increase of service life, the aged bridge is easy to deform, cracks are easy to appear at the bottom and the side face of the bridge, and related units need to measure the width of the cracks of the bridge at regular intervals, so that the aging degree of the bridge is judged.

The measurement of traditional bridge crack is generally laminated at crack surface through the dipperstick and is measured, but is located the crack of bridge bottom, bridge side when measuring, and the measurement personnel is inconvenient for contacting crack position, need receive lifting tool or remove to crack position with the help of the safety belt and measure, and measurement mode is not convenient enough, has certain risk.

Disclosure of Invention

In order to solve the technical problems, the utility model provides a crack width measuring instrument, which is used for solving the problems that the traditional bridge crack measurement is generally carried out on the outer surface of the crack through attaching a measuring ruler, but when the crack at the bottom and the side surface of the bridge is measured, a measurer is inconvenient to contact with the position of the crack, the crack needs to be measured by using a lifting tool or moving to the position of the crack by means of a safety belt, the measuring mode is not convenient enough, and a certain risk exists.

The utility model discloses a crack width measuring instrument, which is characterized by comprising the following specific technical means:

a crack width gauge specifically comprises a gauge handle; the end part of the measuring instrument handle is fixedly connected with a measuring cylinder; the measuring driving piece is fixedly connected to the middle of the upper surface of the measuring cylinder through a screw; the linkage gear is fixedly connected to the lower end of the output shaft of the measurement driving piece; the synchronous push rods are arranged at two positions and are both in sliding connection with the inside of the measuring cylinder; and the measuring ruler plate is fixedly connected to the right side of the upper surface of the measuring cylinder.

Further, the measuring cylinder is a rectangular cylinder, two cylinder transverse supporting rods are fixedly connected to the inner lower surface of the measuring cylinder, the two cylinder transverse supporting rods are parallel to each other, and the two cylinder transverse supporting rods are perpendicular to the inner lower surface of the measuring cylinder.

Further, the upper surface fixedly connected with inner guide plate of the horizontal branch of barrel, the lower surface perpendicular to the horizontal branch of barrel of inner guide plate, the pointer direction spout has been run through to the upper wall right side of measuring cylinder, and two wide board guide slots have been run through to the bottom plate of measuring cylinder, and two wide board guide slots are all parallel to the horizontal branch of barrel.

Further, the measuring driving piece is connected with a driving piece control switch through an electric connection wire, and the driving piece control switch is fixedly connected to the front end of the upper surface of the measuring instrument handle through a screw.

Further, the outer edge of the upper surface of the synchronous push rod is provided with a push rod folding edge, the inner surface of the push rod folding edge is provided with a rack, and the rack on the inner surface of the push rod folding edge is meshed with the linkage gear to form gear-rack transmission.

Further, the lower surface fixedly connected with push rod sliding sleeve of synchronous push rod, the push rod sliding sleeve transversely runs through and has seted up "T" shape groove, and synchronous push rod's lower surface fixedly connected with measures the picture peg, and the synchronous push rod upper surface right-hand member of place ahead fixedly connected with width finger type needle, width finger type needle sliding connection pointer direction spout.

Further, the section of the measuring ruler plate is of an L-shaped structure, and scale strips are machined on the upper surface of the measuring ruler plate, and the scale values of the scale strips are twice of the standard scale values.

Compared with the prior art, the utility model has the following beneficial effects:

1. when the bridge crack measuring device is used, a measuring person can hold the measuring instrument handle to control the measuring cylinder to be close to and attached to the outer surface of the crack, so that the measuring person can control the measuring tool to be close to and contact with the detected crack, the body of the measuring person does not need to be too close to the detected crack, the measuring difficulty is reduced for crack measuring work on the side surface and the bottom of the bridge, the measuring safety is improved, and the accident rate is reduced.

2. The utility model provides a bridge crack measuring device has the function of remote control dipperstick action, when measuring, laminate the bridge surface with the lower surface of measuring cylinder, and to insert the measurement picture peg by the measurement crack, make the direction of measuring cylinder and crack direction perpendicular, start the rotation of measuring the driving piece through driving piece control switch, drive linkage gear rotates, linkage gear drives two sets of synchronous push rods simultaneously and removes, make two measurement picture peg keep away from, when two measurement picture peg all laminate the back with cracked inner wall, the measurement driving piece stops the drive, the numerical value of width pointer on the scale strip is the cracked width numerical value this moment, bridge crack measuring device in this application measures the simple operation, and convenient use, measurement accuracy is high, do benefit to and accomodate, have good practicality.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is a schematic view of the structure of the bottom part of the present utility model.

FIG. 3 is a schematic view of the structure of the inside of the measuring cylinder of the present utility model.

Fig. 4 is a schematic view of the structure of the bottom of the measuring cylinder of the present utility model.

Fig. 5 is a schematic view of the structure of the measuring board in the unfolded state of the utility model.

Fig. 6 is a partially enlarged schematic view of the structure of fig. 1 a according to the present utility model.

In the figure, the correspondence between the component names and the drawing numbers is:

1. a measuring instrument handle; 2. a measuring cylinder; 201. a cylinder transverse strut; 202. an inner guide plate; 203. pointer guiding chute; 204. a width measuring plate guide groove; 3. measuring the driving member; 301. the driving piece controls the switch; 4. a linkage gear; 5. a synchronous push rod; 501. folding edge of push rod; 502. a push rod sliding sleeve; 503. measuring the plugboard; 504. a width finger; 6. a measuring ruler plate; 601. a scale bar.

Detailed Description

Embodiments of the present utility model are described in further detail below with reference to the accompanying drawings and examples.

Embodiment one:

as shown in fig. 1 to 6:

the utility model provides a crack width measuring instrument, which comprises a measuring instrument handle 1; the end part of the measuring instrument handle 1 is fixedly connected with a measuring cylinder 2, a pointer guide chute 203 is penetrated and arranged on the right side of the upper wall of the measuring cylinder 2, two width measuring plate guide grooves 204 are penetrated and arranged on the bottom plate of the measuring cylinder 2, and the two width measuring plate guide grooves 204 are parallel to the cylinder transverse supporting rod 201; the measuring driving piece 3 is fixedly connected with the middle of the upper surface of the measuring cylinder 2 through a screw; the linkage gear 4 is fixedly connected to the lower end of the output shaft of the measurement driving piece 3; the synchronous push rods 5 are arranged at two positions, and the two synchronous push rods 5 are both in sliding connection with the inside of the measuring cylinder 2; the measuring ruler plate 6 is fixedly connected to the right side of the upper surface of the measuring cylinder 2; when carrying out the crack width measurement of bridge side, measurement personnel holds measuring apparatu handle 1 and makes measuring cylinder 2 be close to and laminate crack surface, and measurement personnel's health need not too to be close to the crack that is surveyed, further makes things convenient for the width gauge to laminate with the bridge surface, is located the crack measurement work of bridge side, bottom, has further improved the measurement security, has reduced the degree of difficulty of measurement work.

Wherein, the measuring cylinder 2 is the rectangle barrel, and the inside lower surface fixed connection of measuring cylinder 2 has two barrel horizontal branch 201, two barrel horizontal branch 201 are parallel to each other, the inside lower surface of two barrel horizontal branch 201 all perpendicular to measuring cylinder 2, the upper surface fixed connection of barrel horizontal branch 201 has interior baffle 202, the lower surface perpendicular to barrel horizontal branch 201 of interior baffle 202, the lower surface fixed connection of synchronous push rod 5 has push rod sliding sleeve 502, the "T" groove has been transversely seted up in push rod sliding sleeve 502, push rod sliding sleeve 502 sliding connection is on barrel horizontal branch 201 and interior baffle 202, play the effect of direction, avoid synchronous push rod 5 to take place the deflection at the removal in-process.

The measuring driving piece 3 is connected with a driving piece control switch 301 through an electrical connection wire, and the driving piece control switch 301 is fixedly connected to the front end of the upper surface of the measuring instrument handle 1 through a screw; through measuring apparatu handle 1's effect, make things convenient for in the laminating of measurement personnel control measuring cylinder 2 in the cracked surface of survey, can start and close by remote control measurement drive piece 3 through drive piece control switch 301 to control the interval between two measurement picture peg 503, adjust the width between two measurement picture peg 503, be convenient for control two measurement picture peg 503 respectively with the cracked both sides face laminating of bridge, can calculate the interval between the cracked both sides face of bridge through the travel distance of two measurement picture peg 503, obtain the cracked width numerical value of bridge.

Wherein, the outer edge of the upper surface of the synchronous push rod 5 is processed with a push rod folding edge 501, the inner surface of the push rod folding edge 501 is processed with a rack, and the rack on the inner surface of the push rod folding edge 501 is meshed with the linkage gear 4 to form gear-rack transmission; the lower surface of the synchronous push rod 5 is fixedly connected with a measuring plugboard 503, the right end of the upper surface of the front synchronous push rod 5 is fixedly connected with a width finger type needle 504, the width finger type needle 504 is in sliding connection with a pointer guiding chute 203, and the measuring plugboard 503 is in sliding connection with a width measuring plate guiding groove 204 to play a guiding role; when the width of the crack is measured, the measuring instrument handle 1 is used for controlling the position of the measuring tube 2, the lower surface of the measuring tube 2 is attached to the outer surface of the crack to be measured, the two measuring insertion plates 503 are inserted into the crack, the measuring driving piece 3 drives the linkage gear 4 to rotate, the two synchronous push rods 5 are synchronously pushed inwards, the two measuring insertion plates 503 follow the movement, the moving distance of each measuring insertion plate 503 is the moving distance of the width finger type needle 504 on the scale bar 601, the distance of the two measuring insertion plates 503 is the width of the crack, and the moving distance of the width finger type needle 504 on the scale bar 601 is twice.

The section of the measuring ruler plate 6 is of an L-shaped structure, a scale bar 601 is processed on the upper surface of the measuring ruler plate 6, and the scale value of the scale bar 601 is twice of the standard scale value; because the two synchronous push rods 5 synchronously move in the crack measurement process, the width of the crack is twice the moving distance of the right synchronous push rod 5, namely the width of the detected crack is the degree of the scale bar 601 on the scale value.

Embodiment two: the measuring ruler plate 6 is processed into a plate body with an L-shaped cross section through bending, and scale strips 601 are processed on two clamping surfaces of the measuring ruler plate 6; the observation angle of the measuring staff is increased, so that the measuring staff can conveniently see the scale bar 601 along the direction of the measuring instrument handle 1, and accurate reading is facilitated.

The specific use mode and the action are as follows:

in the utility model, firstly, a measurer holds the end part of a measuring instrument handle 1 and controls a measuring tube 2 to approach and attach to the outer surface of a crack, inserts a measuring plugboard 503 into the measured crack, enables the direction of the measuring tube 2 to be vertical to the direction of the crack, starts a measuring driving piece 3 to rotate through a driving piece control switch 301, drives a linkage gear 4 to rotate, forms gear rack transmission through engagement connection of the linkage gear 4 and a push rod flange 501 rack, simultaneously pulls two synchronous push rods 5 inwards to enable the two measuring plugboards 503 to be far away, controls the two measuring plugboards 503 to attach to two side walls of the crack, stops rotating when the two measuring plugboards 503 are respectively attached to two side inner walls of the crack, the moving distance of each measuring plugboard 503 is the moving distance of a width pointer 504 on a scale bar 601, the distance of the two measuring plugboards 503 is the width of the crack, and the moving distance of the width pointer 504 on the scale bar 601 is twice, and the numerical value of the width pointer 504 on the scale bar 601 is the width numerical value of the crack at the moment, so that the measuring work of the bridge crack can be completed.

Claims

1. A crack width gauge, characterized in that: comprises a measuring instrument handle (1); the end part of the measuring instrument handle (1) is fixedly connected with a measuring cylinder (2); the measuring driving piece (3), the measuring driving piece (3) is fixedly connected in the middle of the upper surface of the measuring cylinder (2) through a screw; the linkage gear (4) is fixedly connected to the lower end of the output shaft of the measurement driving piece (3); the synchronous push rods (5) are arranged at two positions, and the two synchronous push rods (5) are both in sliding connection with the inside of the measuring cylinder (2); and the measuring ruler plate (6), wherein the measuring ruler plate (6) is fixedly connected to the right side of the upper surface of the measuring cylinder (2).

2. A crack width gauge as defined in claim 1, wherein: the measuring cylinder (2) is a rectangular cylinder, two cylinder transverse struts (201) are fixedly connected to the inner lower surface of the measuring cylinder (2), the two cylinder transverse struts (201) are parallel to each other, and the two cylinder transverse struts (201) are perpendicular to the inner lower surface of the measuring cylinder (2).

3. A crack width gauge as defined in claim 2, wherein: the upper surface fixedly connected with inner guide plate (202) of barrel horizontal branch (201), the lower surface of inner guide plate (202) perpendicular to barrel horizontal branch (201), pointer direction spout (203) has been seted up in running through in the upper wall right side of measuring cylinder (2), and two wide board guide slots (204) have been seted up in running through of bottom plate of measuring cylinder (2), and two wide board guide slots (204) are all parallel to barrel horizontal branch (201).

4. A crack width gauge as defined in claim 1, wherein: the measuring driving piece (3) is connected with a driving piece control switch (301) through an electrical connection wire, and the driving piece control switch (301) is fixedly connected to the front end of the upper surface of the measuring instrument handle (1) through a screw.

5. A crack width gauge as defined in claim 3, wherein: the outer edge of the upper surface of the synchronous push rod (5) is processed with a push rod folding edge (501), the inner surface of the push rod folding edge (501) is processed with a rack, and the rack on the inner surface of the push rod folding edge (501) is meshed with the linkage gear (4) to form gear-rack transmission.

6. A crack width gauge as defined in claim 5, wherein: the lower surface fixedly connected with push rod sliding sleeve (502) of synchronous push rod (5), the horizontal groove of having seted up "T" that runs through of push rod sliding sleeve (502), the lower surface fixedly connected with of synchronous push rod (5) measures picture peg (503), the synchronous push rod (5) upper surface right-hand member of place ahead is fixedly connected with width finger type needle (504), width finger type needle (504) sliding connection pointer direction spout (203).

7. A crack width gauge as defined in claim 1, wherein: the section of the measuring ruler plate (6) is of an L-shaped structure, a scale strip (601) is machined on the upper surface of the measuring ruler plate (6), and the scale value of the scale strip (601) is twice of the standard scale value.