CN217442497U - Handheld crack width gauge - Google Patents

Abstract

The utility model discloses a handheld crack width gage, including detector host computer, handheld part and microprobe. The main machine of the detector displays and receives image data transmitted by the microprobe through a data transmission line in a split screen manner; the handheld component comprises a handle axially penetrated by the data transmission wire and locking assemblies respectively arranged at two ends of the handle; the microscopic probes are symmetrically arranged at two ends of the handheld part. The two detection points are detected simultaneously through the microscope probes arranged oppositely, and in a handheld preset width range, the two different points and the same different point are effectively detected simultaneously, so that the collection efficiency of related data is effectively improved. The data detected by the two microscopic probes are read by the host computer of the detector through the double-screen data display module, so that the detection efficiency is effectively improved. The handle and the microprobe are further locked and fixed through the locking assembly, so that the influence of looseness of the microprobe on a detection result is effectively prevented.

Description

Handheld crack width gauge

Technical Field

The utility model relates to a measuring instrument field, concretely relates to handheld crack width gage.

Background

The crack width measuring instrument is widely applied to quantitative detection of the crack width of the surfaces of buildings such as bridges and tunnels, and the traditional crack width measuring instrument adopts a color microscopic amplification probe to display the scanned and captured cracks in real time through a display screen and automatically read the crack width.

In the actual measurement process, the microscopic amplification probe needs to be held by hand to move along the trend of the crack, and multiple fixed-point measurements are needed under the condition that the crack is multiple or the crack is long, so that a large amount of detection time is consumed.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: the utility model discloses to above shortcoming, provide a handheld crack width gauge to solve the above-mentioned problem that prior art exists.

The technical scheme is as follows: a hand-held crack width gauge comprises a main machine of the gauge, a hand-held part and a microscopic probe.

The main machine of the detector displays and receives image data transmitted by the microprobe through a data transmission line in a split screen manner; the handheld component comprises a handle axially penetrated by the data transmission wire and locking assemblies respectively arranged at two ends of the handle; the microscope probes are symmetrically arranged at two ends of the handheld part, and the main machine of the detector drives the microscope probes to synchronously detect and take pictures; the locking assembly is connected with the top of the microprobe.

The data transmission line runs through the extension by the handle both ends, connect respectively and set up on the micro probe at handheld both ends, the other end and the detector host computer of data transmission line are connected, the micro probe is connected in terminal surface under the handle, the image data that detects the micro probe shows on the display screen, in the limited range by between the micro probe of handle size control, realize cross regional synchronous detection, arbitrary direction transform check point between same crack and the different crack promptly, effectively improve many group data analysis of crack and detection efficiency. Meanwhile, the locking assembly is arranged at the joint of the micro probe and the handle, so that the stability of the micro probe is improved, and the micro probe is prevented from being loosened to influence a detection result.

In a further embodiment, the locking assembly comprises a connecting end extending from the top of the microprobe to the end face of the handle, a U-shaped clamp sleeved with the outer wall of the connecting end, and locking terminals respectively vertically connected with the open ends of the U-shaped clamp, wherein the locking terminals move relatively at a preset distance to form a buckling structure. U-shaped checkpost circular arc section and the laminating of link outer wall, form buckle structure, U-shaped checkpost fortune and locking terminal fixed connection, guarantee its synchronous motion, locking terminal and link axis distance more than or equal to link diameter, the U-shaped checkpost is behind the relative motion of locking terminal, the locking terminal links up locking each other, the U-shaped checkpost has certain toughness, bending deformation and compressing tightly the link under the pressure effect of locking terminal, guarantee the connection fastening nature of link and data conduction line, further prevent that the microprobe is not hard up. The horizontal extension distance of the plane section of the U-shaped clamp is greater than the diameter of the locking terminal, so that the effective work of the locking terminal is guaranteed.

In a further embodiment, each locking terminal comprises a protection shell with a hollow interior, and a connecting piece arranged along the inner wall of one side of the protection shell, wherein the connecting piece extends to the outer wall of the protection shell vertically after extending for a preset distance from the inner wall of the protection shell, and forms a locking area with the protection shell. The locking terminal is wholly of a step type, the connecting piece is arranged at the small end of the locking terminal, namely between the U-shaped clamps, the working stroke of the locking terminal is reduced, and quick locking is achieved. The link up piece extends along protective housing tip axial, can extend for the plane or with the curved surface of the equal radian of protective housing, and the link up piece both ends extend perpendicularly and the embedded fixed connection of protective housing outer wall, and the link up piece forms locking space with the protective housing body for can mutually support in locking space between the locking terminal, realize the locking state.

In a further embodiment, a plurality of buckles are arranged on one of the inner connecting piece walls along the radial extension array of the protection shell, the longitudinal section of each buckle is Z-shaped, and the buckles extend from the inner connecting piece wall to be close to the inner wall of the protection shell at a preset angle. One end of the hasp is fixed on the inner wall of the first connecting piece, the end part of the protective shell and the inner wall are close to each other in the direction of 45 degrees or less in an inclined direction, the hasp is integrally positioned in the locking space, a certain gap is reserved between the hasp and the inner wall of the protective shell, and a rebound space is provided for the hasp. The end part of the hasp is provided with an arc curved surface in the direction close to the first connecting piece, so that the transmission efficiency of the second connecting piece and the hasp is improved.

In a further embodiment, the connecting pieces are respectively arranged at different distances from the inner wall of the protection shell in the same direction. The hasp end and the first linking piece end keep the parallel and level, and the interval between second linking piece and the protection casing is less than the interval between hasp and the protection casing to at locking terminal relative motion, second linking piece along hasp surface displacement for second linking piece locking is between first linking piece and hasp, and the hasp pushes down second linking piece for second linking piece and the inseparable laminating of first linking piece, effectively realize locking work.

In a further embodiment, the initial longitudinal spacing between the end faces of the connecting pieces is zero, and the initial radial spacing between the end faces of the connecting pieces after movement is equal to the initial radial spacing between the protective housings. The connecting pieces are jointed after moving relatively, and meanwhile, the end faces of the protective shells are also jointed mutually, so that the locking state between the connecting pieces is realized under the elastic pressure of the hasps. The width of the second connecting piece is smaller than that of the first connecting piece, so that the second connecting piece is integrally positioned in the locking space, and the second connecting piece is prevented from interfering with the first connecting piece in the locking process. The second link up piece transversely extends to the outer tip of protection casing for second link up piece tip and first link up piece tip keep the parallel and level state, and the second link up piece forms an organic whole along hasp laminating motion until protection casing tip, effectively improves overall structure compactness, reduces whole mechanism and distributes, prevents to increase microprobe and crack position calibration difficulty.

In a further embodiment, the link member is provided with a push button vertically at a predetermined distance from the end of the protective housing, the push button vertically extending to the outer end of the U-shaped clip.

The button is fixedly connected with the second connecting piece and penetrates through the protective shell to extend to the end part of the U-shaped clamp, the second connecting piece is vertically divided into a locking attaching part and a connecting part by the end face of the protective shell, and the button is arranged on the connecting part in an extending mode through the protective shell to avoid conflict with locking work. The button and the clearance fit of the protective shell body provide a movement space for the button, pressure is applied to the connecting portion through the button, the second connecting piece is gradually kept away from the hasp to form a gap when the button and the hasp are pushed, the locking portion is loosened, and follow-up detachment of the microprobe is facilitated.

Has the advantages that: the utility model discloses a handheld crack width gauge detects two check points simultaneously through the microprobe of relative setting to in handheld predetermined width range, effectively realize detecting two differences and same difference simultaneously, thereby effectively improve the collection efficiency of relevant data. The data detected by the two microscopic probes are read by the host computer of the detector through the double-screen data display module, so that the detection efficiency is effectively improved. The handle and the microprobe are further locked and fixed through the locking assembly, so that the influence on a detection result caused by the looseness of the microprobe is effectively prevented.

Drawings

Fig. 1 is a structural diagram of the whole device of the present invention.

Fig. 2 is a connection diagram of the locking assembly of the present invention.

Fig. 3 is an exploded view of the middle locking assembly of the present invention.

Fig. 4 is a connection diagram of the first connecting member according to the present invention.

Fig. 5 is a connection diagram of a second connecting member according to the present invention.

The figures are numbered: the detector comprises a detector host 1, a data transmission wire 2, a handle 31, a locking assembly 32, a microprobe 4, a connecting end 321, a U-shaped clamp 322, a locking terminal 323, a protective shell 3231, a connecting piece 3232, a first connecting piece 3232b, a second connecting piece 3232c and a buckle 3234.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the present invention.

For solving the above-mentioned problem that prior art exists, the utility model provides a handheld crack width gage, including detector host computer 1, handheld part and microprobe 4. The detector host 1 displays and receives image data transmitted by the microscopic probe 4 through the data transmission line 2 in a split screen manner; the hand-held part comprises a handle 31 axially penetrated by the data transmission wire 2 and locking assemblies 32 respectively arranged at two ends of the handle 31; the microscopic probes 4 are symmetrically arranged at two ends of the handheld part, and the detector main machine 1 drives the microscopic probes 4 to synchronously detect and take pictures; the locking assembly 32 is attached to the top of the microprobe 4.

The data transmission line 2 is penetrated and extended from two ends of the handle 31 and is respectively connected and arranged on the microscopic probes 4 at two handheld ends, the other end of the data transmission line 2 is connected with the detector host 1, the detector host 1 adopts a data system capable of split screen display, the microscopic probes 4 are connected with the lower end face of the handle 31, the middle hand-holding section of the handle 31 is made of soft rubber, and the outline of the handle 31 comprises but not limited to an arc curved surface and a plane so as to accord with human engineering. The handle 31 is held by hand to enable the microscopic probe 4 to correspond to a part to be detected, image data detected by the microscopic probe 4 is displayed on a display screen, the screen division direction is not limited to be divided up and down and left and right, screen display images correspond to the microscopic probes 4 received by the screen display images respectively, cross-region synchronous detection is achieved in a limited range between the microscopic probes 4 controlled by the size of the handle 31, detection points can be changed in any direction between the same crack and different cracks, and multi-group data analysis and detection efficiency of the cracks are effectively improved. Locking Assembly 32 sets up in the micro probe 4 and handle 31 junction, improves the steadiness of micro probe 4, prevents that micro probe 4 is not hard up to influence the testing result.

As shown in fig. 3, the locking assembly 32 includes a connecting end 321 extending from the top of the microprobe 4 to the end surface of the handle 31, a U-shaped clip 322 sleeved on the outer wall of the connecting end 321, and locking terminals 323 respectively connected to the open ends of the U-shaped clip 322 perpendicularly, wherein the locking terminals 323 move relatively at a predetermined distance to form a snap structure. Microscopic probe 4 adopts conventional fastener to connect with data conduction line 2, and handle 31 tip runs through extending direction syntropy by data conduction line 2 and extends the formation by link 321, and link 321 is inside to form detachable construction with the fastener transition fit, and locking Assembly 32 further locks the linkage segment, effectively prevents microscopic probe 4 when with wall body relative motion, and microscopic probe 4 leads to becoming flexible with the fastener cooperation inefficacy, reduces data detection's accuracy. U-shaped checkpost 322 arc segment and the laminating of link 321 outer wall, form buckle structure, U-shaped checkpost 322 fortune and lock terminal 323 fixed connection, guarantee its synchronous motion, lock terminal 323 and link 321 axis apart from more than or equal to link 321 diameter, U-shaped checkpost 322 is behind the relative motion of lock terminal 323, lock terminal 323 links up locking each other, U-shaped checkpost 322 has certain toughness, bending deformation and compressing tightly link 321 under the pressure effect of lock terminal 323, guarantee the connection fastening nature of link 321 and data conduction line 2, further prevent that microprobe 4 from becoming flexible. The horizontal extension distance of the plane section of the U-shaped clip 322 is larger than the diameter of the locking terminal 323, so that the effective work of the locking terminal 323 is ensured. Each locking terminal 323 comprises a hollow protective shell 3231 and a connecting piece 3232 arranged along the inner wall of one side of the protective shell 3231, wherein the connecting piece 3232 extends from the inner wall of the protective shell 3231 to the outer wall of the protective shell 3231 vertically after extending for a predetermined distance, and forms a locking area with the protective shell 3231. The locking terminal 323 is integrally stepped, and the connecting piece 3232 is arranged at the small end of the locking terminal 323, namely between the U-shaped clamps 322, so that the working stroke of the locking terminal 323 is reduced, and quick locking is realized. The connecting piece 3232 extends axially along the small end of the protection housing 3231 and can be a plane or a curved surface with the same radian as the protection housing 3231, two ends of the connecting piece 3232 extend vertically to be fixedly connected with the outer wall of the protection housing 3231 in an embedded manner, and the connecting piece 3232 and the protection housing 3231 form a locking space, so that the locking terminals 323 can be matched with each other in the locking space to realize a locking state.

Further, a plurality of snaps 3234 are arranged on an inner wall of the connector 3232 along a radial direction of the protection housing 3231, and the snaps 3234 have a "Z" shape in a longitudinal section and extend from the inner wall of the connector 3232 to be close to the inner wall of the protection housing 3231 at a predetermined angle. One end of the buckle 3234 is fixed to the inner wall of the first connecting piece 3232b, the end portion of the protective housing 3231 is inclined upward at an angle of 45 degrees or less, and the inner wall of the protective housing 3231 is close to the end portion of the buckle 3234, and the buckle 3234 is integrally located in a locking space and has a certain gap with the inner wall of the protective housing 3231, so that a rebound space is provided for the buckle 3234. The end of the buckle 3234 close to the first connecting piece 3232b is provided with an arc curved surface, so that the transmission efficiency of the second connecting piece 3232c and the buckle 3234 is improved.

Further, the connecting pieces 3232 are respectively provided with different distances from the inner wall of the protection housing 3231 in the same direction. The buckle 3234 and the joint 3232 are made of metal sheets, the end of the buckle 3234 is flush with the end of the first joint 3232b, the distance between the second joint 3232c and the protection housing 3231 is smaller than the distance between the buckle 3234 and the protection housing 3231, so that when the locking terminal 323 moves relatively, the second joint 3232c moves along the surface of the buckle 3234, the second joint 3232c is locked between the first joint 3232b and the buckle 3234, and the buckle 3234 presses the second joint 3232c downwards, so that the second joint 3232c is tightly attached to the first joint 3232b, and locking is completed.

The engagement pieces 3232 are engaged after the relative movement, and the end faces of the protective housings 3231 are also engaged with each other, so that a locked state between the engagement pieces 3232 is achieved under the elastic pressure of the snaps 3234 while reducing the overall size. The longitudinal initial spacing between the end faces of the connecting pieces 3232 is zero, and the longitudinal spacing between the end faces after the connecting pieces 3232 move is equal to the radial initial spacing between the protective shells 3231. The second connector 3232c has a width smaller than that of the first connector 3232b, so that the second connector 3232c is entirely located in the locking space, and the second connector 3232c is prevented from interfering with the first connector 3232b during locking. The second connecting piece 3232c transversely extends to the outer end of the protection shell 3231, so that the end of the second connecting piece 3232c and the end of the first connecting piece 3232b are kept in a parallel and level state, and the second connecting piece 3232c moves along the buckle 3234 in a fitting mode until the end of the protection shell 3231 is iron, so that the whole structure compactness is effectively improved, the whole mechanism distribution is reduced, and the difficulty in calibrating the position of the microprobe 4 and a crack is prevented from being increased. In this embodiment, the distance between the inner walls of the U-shaped clips 322 is used as the initial radial distance between the protective housings 3231, and the locking effect is improved by the largest possible deformation force of the U-shaped clips 322.

In addition, the coupling member 3232 is vertically provided with a button at a predetermined distance from the end of the protection housing 3231, and the button vertically extends to the outer end of the U-shaped clip 322. The button is fixedly connected with a second connector 3232c and extends to the end of the U-shaped clip 322 through the protective housing 3231, the second connector 3232c is vertically divided into a locking attachment portion and a connection portion by the end face of the protective housing 3231, and the button is arranged on the connection portion by extending through the protective housing 3231, so as to avoid interference with locking operation. Button and protection casing 3231 clearance fit for the button provides the space of motion, exerts pressure to connecting portion through the button, and second link 3232c has the clearance in push force when button and hasp 3234, keeps away from hasp 3234 gradually, loosens the locking position, is convenient for follow-up dismantlement to microscope probe 4.

According to the above technical scheme, the utility model discloses specific working method as follows: according to the detection requirement, the top end of the handle 31 is held by hand to enable the microscope probes 4 at two ends to respectively correspond to and be attached to the part to be detected, the connecting pieces 3232 at two ends are manually pressed down simultaneously to enable the connecting pieces to approach each other, the first connecting piece 3232b at one end and the second connecting piece 3232c at the other end move relatively, the second connecting piece 3232c is attached to a buckle 3234 on the first connecting piece 3232b, the attaching degree of the first connecting piece 3232b and the second connecting piece 3232c is further improved under the action of elastic pressure of the buckle 3234, the locking state is achieved, the arc end portion of the U-shaped clamp 322 is further shrunk, and the fixing with the connecting end 321 is achieved.

As noted above, while the invention has been shown and described with reference to certain preferred embodiments, it is not to be construed as limited to the invention itself. Various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (7)

1. A hand-held crack width gauge, comprising:

the detector host displays and receives image data transmitted by the microprobe through a data lead in a split screen manner;

the handheld component comprises a handle axially penetrated by the data transmission wire and locking assemblies respectively arranged at two ends of the handle;

the microscopic probes are symmetrically arranged at two ends of the handheld part, and the main machine of the detector drives the microscopic probes to synchronously detect and take pictures;

the locking assembly is connected with the top of the microprobe.

2. The handheld crack width measuring instrument as claimed in claim 1, wherein the locking assembly comprises a connecting end extending from the top of the microscopic probe to the end surface of the handle, a U-shaped clip sleeved on the outer wall of the connecting end, and locking terminals respectively connected with the open ends of the U-shaped clip perpendicularly, and the locking terminals move relatively at a predetermined distance to form a snap-fit structure.

3. The hand-held crack width gauge as claimed in claim 2, wherein the locking terminals each comprise a protection housing having a hollow interior, and a connecting member disposed along an inner wall of one side of the protection housing, the connecting member extending axially from the inner wall of the protection housing for a predetermined distance and then vertically extending to an outer wall of the protection housing to form a locking region with the protection housing.

4. A hand-held crack width gauge as claimed in claim 3 wherein a plurality of snap-fasteners are provided in an array extending radially along the protective housing from an inner wall of the connector, the snap-fasteners having a "Z" shape in longitudinal cross-section and extending at a predetermined angle from the inner wall of the connector to close to the inner wall of the protective housing.

5. The hand-held crack width gauge of claim 3, wherein the joints are respectively arranged at different distances from the inner wall of the protection housing in the same direction.

6. A hand-held crack width gauge as claimed in claim 3 wherein the initial longitudinal spacing between the end faces of the links is zero and the initial radial spacing between the end faces after movement of the links is the same as the initial radial spacing between the protective housings.

7. A hand-held crack width gauge as claimed in claim 4 wherein the link is provided with a button vertically disposed at a predetermined distance from the end of the protective housing, the button extending vertically to the outer end of the U-shaped clip.

Images