CN217273160U

CN217273160U - Crack width measuring instrument

Info

Publication number: CN217273160U
Application number: CN202221196083.2U
Authority: CN
Inventors: 许雪; 杨坤; 朱晓俊
Original assignee: Henan Yonghe Construction Group Co Ltd
Current assignee: Henan Yonghe Construction Group Co Ltd
Priority date: 2022-05-17
Filing date: 2022-05-17
Publication date: 2022-08-23
Anticipated expiration: 2032-05-17

Abstract

The utility model belongs to the technical field of crack width measuring appearance and specifically relates to relate to crack width measuring appearance, it includes the telescopic link, connect in mount table, the fixed mounting of telescopic link in the probe of mount table, the telescopic link with be equipped with hinge mechanism between the mount table, hinge mechanism include fixed connection in fixed ring, the fixed connection of telescopic link in the mount table is kept away from the fixed plate, the fixed connection on the surface of probe fixed plate and sliding connection in fixed ring's solid fixed screw rod, threaded connection in gu fixed screw rod just is located solid fixed ring and keeps away from the lock loop of fixed plate one side. This application has the effect of being convenient for the staff to adjust the micro-detection probe angle.

Description

Crack width measuring instrument

Technical Field

The application relates to the field of crack width gauges, in particular to a crack width gauge.

Background

The crack width measuring instrument is an instrument for professional detection of crack width and surface micro defects in a concrete structure. When the crack width gauge is used, the display screen and the microscopic detection probe are connected through a cable or wifi, a power switch is turned on, two support legs of the microscopic detection probe are placed on a crack, an amplified crack image can be seen on the display screen, a camera on the microscopic detection probe is slightly rotated, the crack image is perpendicular to the graduated scale, and a crack width value is read according to the length of a graduated line occupied by the crack image.

Through retrieval, the Chinese utility model with the publication number of CN212931329U discloses a crack width gauge, which comprises a width gauge body, a microscopic detection probe, a telescopic rod and a connecting assembly arranged at the end part of the telescopic rod; the connecting assembly comprises a bearing plate, a clamping seat arranged on the bearing plate and a spring piece arranged on the clamping seat; one side of the bearing plate is fixedly connected with the end part of the telescopic rod, the interior of the clamping seat is of a hollow structure, the clamping seat is provided with an insertion hole, and one side of the insertion hole is connected with a spring piece; the tail part of the microscopic detection probe is provided with a hook, and the hook is used for inserting the microscopic detection probe into the card seat insertion hole.

In view of the above related technologies, the inventor thinks that, although the telescopic rod can be adjusted to an appropriate length to perform crack width detection according to the crack positions in different environments in the foregoing technical solution, because an included angle between the microscopic detection probe and the telescopic rod cannot be adjusted according to actual conditions, the microscopic detection probe is inconvenient to attach to a wall surface where a crack is located during detection, which causes inconvenience in use.

Disclosure of Invention

In order to facilitate the staff to adjust the angle of micro-detection probe, this application provides the crack width gage.

The application provides a crack width gauge adopts following technical scheme:

the utility model provides a crack width measuring appearance, include the telescopic link, connect in mount table, the fixed mounting of telescopic link in the probe of mount table, the telescopic link with be equipped with hinge mechanisms between the mount table, hinge mechanisms include fixed connection in the solid fixed ring, the fixed connection of telescopic link in the mount table is kept away from the fixed plate, the fixed connection on the surface of probe in fixed plate and sliding connection in gu fixed ring's solid fixed screw, threaded connection in gu fixed screw just is located solid fixed ring and keeps away from the locking ring of fixed plate one side.

Preferably, the fixed plate is close to solid fixed ring's fixed surface is connected with a plurality of windings the lug that solid fixed screw circumference was evenly arranged, gu fixed ring is close to the surface of fixed plate seted up a plurality of with lug matched with recess, a plurality of the recess is wound gu fixed ring circumference is evenly arranged, just the lug correspond the joint in the recess.

Preferably, the cross sections of the lug and the groove are hemispherical.

Preferably, the outer wall of the locking ring is provided with friction lines.

Preferably, the telescopic link includes the fixed sleeve, slide peg graft in the fixed sleeve and one end fixed connection in the extension sleeve of mount table, rotate connect in the fixed sleeve and threaded connection in the drive lead screw of extension sleeve inner wall, the fixed sleeve is kept away from the surface of mount table is equipped with the connecting hole, drive lead screw one end is passed the connecting hole extends to the fixed sleeve is outside, just the fixed sleeve with extend and be equipped with circumference locating part between the sleeve.

Preferably, the circumferential limiting part comprises a limiting groove arranged on the outer wall of the extension sleeve and extending along the length direction of the extension sleeve, and a limiting block fixedly connected to the inner wall of the fixed sleeve and slidably connected to the limiting groove.

Preferably, the inner wall of the connecting hole is provided with a limiting ring groove extending around the circumferential direction of the connecting hole, and the circumferential wall of the driving screw rod is fixedly connected with a connecting ring rotatably connected in the limiting ring groove.

Preferably, one end of the driving screw rod, which is located outside the fixing sleeve, is fixedly connected with a knob.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the fixing ring, the fixing plate, the fixing screw rod and the locking ring are matched with each other, when the angle between the probe and the telescopic rod needs to be adjusted, the locking ring is far away from the fixing ring through rotating the locking ring, so that the fixing plate and the mounting table can rotate, when the locking is needed, the locking ring and the fixing plate are matched through reversely rotating the locking ring, the fixing plate and the fixing ring are pressed tightly, and the mounting table is further locked through clamping and matching of the convex block and the groove, so that the adjustment of workers is facilitated;

2. under the coordination among the fixed sleeve, the extension sleeve and the driving screw rod, when the extending position of the probe needs to be adjusted, the extension sleeve which is in threaded connection with the driving screw rod is rotated relative to the driving screw rod under the coordination of the circumferential limiting piece by rotating the driving screw rod, so that the extension sleeve extends out of or is retracted into the fixed sleeve to adjust the position of the probe;

3. under the matching of the limiting groove and the limiting block, the relative circumferential position between the fixed sleeve and the extension sleeve is limited, and the extension sleeve can move along the length direction of the fixed sleeve;

4. under the cooperation of the limiting ring groove and the connecting ring, the axial relative position between the driving screw rod and the fixing sleeve is limited, so that the driving screw rod is more stable in the fixing sleeve.

Drawings

Fig. 1 is a schematic view of the overall structure of the present embodiment.

Fig. 2 is an overall sectional view of the present embodiment.

Fig. 3 is a partially enlarged view of a portion a in fig. 2.

Description of reference numerals: 1. a telescopic rod; 2. an installation table; 3. a probe; 4. a hinge mechanism; 5. a fixing ring; 6. a fixing plate; 7. fixing the screw rod; 8. a locking ring; 9. a bump; 10. a groove; 11. fixing the sleeve; 12. an extension sleeve; 13. driving the screw rod; 14. connecting holes; 15. a knob; 16. a limiting ring groove; 17. a connecting ring; 18. a circumferential limit piece; 19. a limiting groove; 20. and a limiting block.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses crack width gauge. Referring to fig. 1-3, the crack width gauge includes a telescopic rod 1, a mounting platform 2 connected to the telescopic rod 1, and a probe 3 fixedly mounted on the mounting platform 2, and a hinge mechanism 4 for adjusting a relative angle between the telescopic rod 1 and the mounting platform 2 is disposed between the telescopic rod 1 and the mounting platform 2.

The hinge mechanism 4 comprises a fixing ring 5 fixedly connected to the telescopic rod 1, a fixing plate 6 fixedly connected to the surface of the mounting table 2 far away from the probe 3, a fixing screw 7 fixedly connected to the fixing plate 6 and slidably connected to the fixing ring 5, a locking ring 8 in threaded connection with the fixing screw 7 and located on one side of the fixing ring 5 far away from the fixing plate 6, and friction grains are arranged on the outer wall of the locking ring 8.

For making the mount table 2 after the locking and the relative position between the telescopic link 1 more stable, fixed plate 6 is close to the fixed ring 5 fixed surface be connected with a plurality of lugs 9 of evenly arranging around 7 circumference of solid fixed screw, fixed ring 5 is close to the fixed plate 6 the surface seted up a plurality of and lug 9 matched with recess 10, a plurality of recesses 10 are evenly arranged around fixed ring 5 circumference, lug 9 and recess 10 cross-section are hemispherical, and lug 9 corresponds the joint in recess 10.

The telescopic rod 1 comprises a fixing sleeve 11, the telescopic rod is inserted into the fixing sleeve 11 in a sliding mode, one end of the telescopic rod is fixedly connected to an extension sleeve 12 of the mounting table 2, the telescopic rod is connected into the fixing sleeve 11 in a rotating mode and is connected to a driving screw rod 13 of the inner wall of the extension sleeve 12 in a threaded mode, the surface, far away from the mounting table 2, of the fixing sleeve 11 is provided with a connecting hole 14, one end of the driving screw rod 13 penetrates through the connecting hole 14 to extend to the outside of the fixing sleeve 11, and the driving screw rod 13 is located at one end of the outside of the fixing sleeve 11 and is fixedly connected with a knob 15.

When the extended position of the probe 3 needs to be adjusted, the extension sleeve 12 screwed to the driving screw 13 rotates relative to the driving screw 13 by rotating the driving screw 13 under the coordination of the circumferential limiting piece 18, so that the extension sleeve 12 extends out of or retracts into the fixing sleeve 11 to adjust the position of the probe 3.

The inner wall of the connecting hole 14 is provided with a limit ring groove 16 extending around the circumferential direction of the connecting hole, the circumferential wall of the driving screw 13 is fixedly connected with a connecting ring 17 rotatably connected in the limit ring groove 16, and under the matching of the limit ring groove 16 and the connecting ring 17, the axial relative position between the driving screw 13 and the fixing sleeve 11 is limited, so that the position of the driving screw 13 in the fixing sleeve 11 is more stable.

A circumferential limiting part 18 is arranged between the fixed sleeve 11 and the extension sleeve 12, the circumferential limiting part 18 comprises a limiting groove 19 which is arranged on the outer wall of the extension sleeve 12 and extends along the length direction of the extension sleeve, and a limiting block 20 which is fixedly connected to the inner wall of the fixed sleeve 11 and is slidably connected in the limiting groove 19, and under the cooperation of the limiting groove 19 and the limiting block 20, the circumferential relative position between the fixed sleeve 11 and the extension sleeve 12 is limited, and the extension sleeve 12 can move along the length direction of the fixed sleeve 11.

The implementation principle of the crack width gauge of the embodiment of the application is as follows:

when needs are adjusted the angle between probe 3 and telescopic link 1, through rotatory locking ring 8, make locking ring 8 keep away from solid fixed ring 5, thereby make fixed plate 6 and mount table 2 rotate, when needs are locked, through reverse rotation locking ring 8, make locking ring 8 and fixed plate 6 cooperate, compress tightly between fixed plate 6 and the solid fixed ring 5, and through the joint cooperation of lug 9 and recess 10, in order to further lock mount table 2, thereby the staff of being convenient for adjusts.

The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a crack width gage which characterized in that: including telescopic link (1), connect in mount table (2), fixed mounting of telescopic link (1) in probe (3) of mount table (2), telescopic link (1) with be equipped with hinge mechanisms (4) between mount table (2), hinge mechanisms (4) including fixed connection in fixed ring (5), the fixed connection of telescopic link (1) are in mount table (2) are kept away from fixed plate (6), the fixed connection on the surface of probe (3) fixed plate (6) and sliding connection in fixed lead screw (7), the threaded connection of fixed lead screw (7) just are located fixed ring (5) and keep away from the locking ring (8) of fixed plate (6) one side.

2. The crack width gauge of claim 1, wherein: fixed plate (6) are close to the fixed surface of solid fixed ring (5) is connected with a plurality of windings bump (9) that solid fixed screw (7) circumference was evenly arranged, gu fixed ring (5) be close to the surface of fixed plate (6) seted up a plurality of with bump (9) matched with recess (10), a plurality of recess (10) are wound gu fixed ring (5) circumference is evenly arranged, just bump (9) correspond the joint in recess (10).

3. The crack width gauge of claim 2, wherein: the cross sections of the lug (9) and the groove (10) are hemispherical.

4. The crack width gauge of claim 1, wherein: the outer wall of the locking ring (8) is provided with friction grains.

5. The crack width gauge of claim 1, wherein: the telescopic rod (1) comprises a fixed sleeve (11), and a sliding insertion connector, wherein one end of the sliding insertion connector is arranged in the fixed sleeve (11) and is fixedly connected with an extension sleeve (12) of the mounting table (2), and a driving screw rod (13) which is rotatably connected in the fixed sleeve (11) and is in threaded connection with the inner wall of the extension sleeve (12) is far away from the fixed sleeve (11), a connecting hole (14) is formed in the surface of the mounting table (2), one end of the driving screw rod (13) penetrates through the connecting hole (14) to extend to the outside of the fixed sleeve (11), and a circumferential limiting part (18) is arranged between the fixed sleeve (11) and the extension sleeve (12).

6. The crack width gauge of claim 5, wherein: the circumferential limiting part (18) comprises a limiting groove (19) which is formed in the outer wall of the extension sleeve (12) and extends along the length direction of the extension sleeve, and a limiting block (20) which is fixedly connected to the inner wall of the fixed sleeve (11) and is connected to the limiting groove (19) in a sliding mode.

7. The crack width gauge of claim 5, wherein: the inner wall of the connecting hole (14) is provided with a limiting ring groove (16) extending around the circumferential direction of the connecting hole, and the circumferential wall of the driving screw rod (13) is fixedly connected with a connecting ring (17) rotatably connected in the limiting ring groove (16).

8. The crack width gauge of claim 5, wherein: and one end of the driving screw rod (13) positioned outside the fixed sleeve (11) is fixedly connected with a knob (15).