Handheld crack width gauge

Abstract

The utility model belongs to the technical field of crack width gauge equipment, in particular to a handheld crack width gauge, which comprises a width gauge main body, the width gauge main body is provided with a connecting part, a holding part, a power line and a detection end, the connecting part and the holding part are sequentially arranged at the bottom of the width gauge main body, and the width gauge main body is fixedly connected with the connecting part through welding. A wire plate is arranged on one side of the width gauge body, a power line is connected into the wire plate, and the power line extends into the width gauge body and is connected with a winding assembly. According to the utility model, through the width gauge main body, the display panel can be effectively prevented from being dusty when not in use; through the arrangement of the connecting part and the holding part, the width gauge main body, the connecting part and the holding part form an integrated structure, so that the equipment structure is more compact in connection, an anti-skid sleeve can be arranged outside the holding part, the holding feeling in the use process is improved, and slipping is avoided; and by arranging the winding assembly, manual operation is replaced, and the equipment is more convenient and faster.

Description

Technical Field

[0001] The utility model relates to the technical field of crack width measuring instrument equipment, in particular to a handheld crack width measuring instrument. Background Art

[0002] The crack width gauge is a professional instrument for detecting crack width and surface microscopic defects in concrete structures. When using the crack width gauge, connect the display screen and the measuring probe with a cable, turn on the power switch, place the two legs of the measuring probe on the crack, and you can see the enlarged crack image on the display screen. Slightly turn the camera to make the crack image perpendicular to the scale, and read the crack width value according to the length of the scale line occupied by the crack image. To reduce the error, the instrument needs to be calibrated before use: the calibration standard scale plate has scale lines with widths of 0.02, 0.10, 0.20 and 1.00 mm respectively. Place the camera measuring head legs on the scale lines of different widths, and read the corresponding scale line width on the screen. When the error is less than 0.02mm, the instrument can be used normally. The crack width gauge is widely used for quantitative detection of crack widths in bridges, tunnels, walls, concrete pavements, etc.

[0003] The prior art has the following deficiencies: the “crack width gauge” disclosed in the prior art with the publication number CN217236730 U “includes a width gauge, a detection head is provided on one side of the width gauge, a lens is installed on one side of the detection head, wherein a protective cover is fixed on the side of the width gauge close to the detection head, a protective groove is provided on the inner side of the protective cover, and a card slot is symmetrically provided on the inner wall of the protective groove”;

[0004] When the above device is used to measure the width of a crack, the detection head uses a lens to photograph the crack, transmits the information to the width gauge through a wire, and the width gauge automatically measures the width of the crack. After the detection head is used, the detection head drives the lens into the protective groove, and drives the card block into the horizontal groove of the card groove through the lens. When the card block abuts against the end of the horizontal groove of the card groove, the detection head is rotated so that the detection head drives the card block into the vertical groove of the card groove. The vertical groove of the card groove and the card block form a snap-fit ​​structure, which makes it easy to install the lens in the protective groove, and the protective cover is used to protect the lens of the detection head to avoid

[0005] To prevent the lens from being damaged, the above content does not have a protective or dust-proof structure. When the width gauge is idle, dust may easily affect the test accuracy of the instrument. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides a handheld crack width measuring instrument to solve the existing problems.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a handheld crack width gauge, comprising a width gauge body, which has a connecting part, a gripping part, a power cord and a detection end, the bottom of the width gauge body is sequentially provided with a connecting part and a gripping part, the width gauge body and the connecting part are fixedly connected by welding, a wire board is provided on one side of the width gauge body, a power cord is connected inside the wire board, the power cord extends into the width gauge body and is connected with a winding assembly, the width gauge body is connected to the detection end through the power cord, a control panel is provided on the front end surface of the width gauge body, a detection assembly is provided inside the detection end, the detection assembly includes a detection head and a second rotating shaft, and a dust shield is provided on the front end surface of the detection end;

[0008] The width gauge body includes a slot, a cover plate, a display panel, a rotating slot, a first axial hole, a rotating part and a first rotating shaft. The front end face of the width gauge body is provided with a slot, a display panel is fixedly installed inside the slot, rotating slots are provided on both sides of the top of the slot, a first axial hole is provided between the rotating slots, a first rotating shaft is inserted into the first axial hole, the rotating part is movably connected to the rotating slot through the first rotating shaft, a cover plate is fixedly connected to the bottom of the rotating part, and the size of the cover plate is consistent with the size of the slot.

[0009] As a preferred technical solution of the present utility model, a snap-in groove is provided at the bottom of the connecting part and a fixing rod is fixedly connected to the center of the bottom, an anti-slip sleeve can be fixedly installed on the outside of the holding part and snap-in plates are fixedly installed around the top end surface, the size of the snap-in plate is consistent with the size of the snap-in groove, a fixing hole is provided on the inner side of the snap-in plate in the middle of the end surface of the holding part, and the size of the fixing hole is consistent with the fixing rod.

[0010] As a preferred technical solution of the utility model, the detection end includes a accommodating groove, a threading hole, a second axial hole and a sliding groove. The end face of the detection end is provided with a accommodating groove, the bottom of the detection end is provided with a threading hole, the power cord is connected to the detection head through the threading hole, second axial holes are provided on both sides of the inner wall of the accommodating groove, the size of the second axial hole is consistent with the size of the second rotating shaft and there is a rotational connection, sliding grooves are provided on both sides of the inner wall of the accommodating groove at the front end of the second axial hole, and the dust shield is specifically an L-shaped structure and sliders are fixedly connected on both sides.

[0011] As a preferred technical solution of the utility model, the dust-shielding plate is movably connected to the end surface of the accommodating groove through a slider and a slide groove.

[0012] As a preferred technical solution of the utility model, the winding assembly includes a mounting frame, an electrical control unit, a lining plate and a winding drum. A base is fixedly installed inside the width gauge body, a mounting frame is fixedly installed on the top end face of the base, an electrical control unit is fixedly installed on one side of the mounting frame by bolts, a drive shaft is movably connected to the output end of the electrical control unit, the drive shaft is inserted into the mounting frame and lining plates are movably installed on both sides, and a winding drum is fixedly installed between the two groups of lining plates.

[0013] Compared with the prior art, the utility model provides a handheld crack width measuring instrument, which has the following beneficial effects:

[0014] 1. A handheld crack width gauge, by setting a width gauge body and an internal structure, the width gauge body includes a slot, a cover plate, a display panel, a rotating slot, a first shaft hole, a rotating part and a first rotating shaft, the front end surface of the width gauge body is a slot structure, the size of which is consistent with the size of the cover plate, when the device needs to be used, it only needs to pull the cover plate to rotate along the first rotating shaft, and the display panel can be effectively prevented from being dusty when not in use;

[0015] 2. This handheld crack width gauge is provided with a connecting part and a gripping part. A snap-in groove is provided at the bottom of the connecting part and a fixing rod is fixedly connected to the center of the bottom. An anti-slip cover can be fixedly installed on the outside of the gripping part and snap-in plates are fixedly installed around the top end surface. The size of the snap-in plate is consistent with the size of the snap-in groove. A fixing hole is provided on the inner side of the snap-in plate in the middle of the end surface of the gripping part. The size of the fixing hole is consistent with the size of the fixing rod. The gripping part is fixedly connected with the connecting part through the snap-in groove and the snap-in plate in cooperation with the fixing rod, so that the width gauge body, the connecting part and the gripping part form an integrated structure, making the structural connection of the device more compact. The gripping part can be provided with an anti-slip cover to improve the gripping feeling during use and prevent slipping.

[0016] 3. This handheld crack width gauge is provided with a detection end and a dust-proof plate. The detection end includes a receiving groove, a threading hole, a second shaft hole and a slide groove. The end face of the detection end is provided with a receiving groove, and the bottom of the detection end is provided with a threading hole. The power cord is connected to the detection head through the threading hole. Second shaft holes are provided on both sides of the inner wall of the receiving groove. The size of the second shaft hole is consistent with the size of the second rotating shaft and there is a rotation connection. Slide grooves are provided on both sides of the inner wall of the receiving groove at the front end of the second shaft hole. The dust-proof plate is specifically an L-shaped structure and is fixedly connected with sliders on both sides. The dust-proof plate is movably connected to the end face of the receiving groove through the slider and the slide groove. The front end face of the detection end is detachably connected through the slider and the slide groove, so that the dust-proof plate can be covered on the end face of the detection end to prevent dust from entering the receiving groove. The device uses the second rotating shaft to reasonably store the detection components to avoid unnecessary losses caused by damage when not in use.

[0017] 4. This handheld crack width gauge is provided with a winding component, which includes a mounting frame, an electric control unit, a lining plate and a winding drum. A base is fixedly installed inside the width gauge body, a mounting frame is fixedly installed on the top end face of the base, an electric control unit is fixedly installed on one side of the mounting frame by bolts, a drive shaft is movably connected to the output end of the electric control unit, the drive shaft is plugged into the mounting frame and lining plates are movably installed on both sides, a winding drum is fixedly installed between the two groups of lining plates, and the movement of the electric control unit drives the drive shaft to rotate, so that the winding drum can complete the winding of the power cord. When the winding drum completes the winding, as the power cord is wound, the detection component can be driven to rotate into the accommodating slot, replacing manual operation, making the device more convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the connection state of the gripping part of the utility model;

[0020] Figure 3 This is a schematic diagram of the protective housing structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the detection end of the utility model;

[0022] Figure 5 This is a schematic diagram of the internal structure of the main body of the utility model width measuring instrument;

[0023] Figure 6 It is a schematic diagram of the three-dimensional structure of the winding component of the utility model.

[0024] In the figure: 1. Width gauge body; 101. Slot; 102. Cover plate; 103. Display board; 104. Rotating slot; 105. First axial hole; 106. Rotating part; 107. First rotating shaft; 2. Connecting part; 201. Snap-in slot; 3. Holding part; 301. Snap-in plate; 302. Fixing hole; 4. Wire guide; 5. Detection end; 501. Receiving slot; 502. Threading hole; 503. Second axial hole; 504. Slide slot; 6. Power cord; 7. Control panel; 8. Detection assembly; 801. Detection head; 802. Second rotating shaft; 9. Dust shield; 901. Sliding block; 10. Winding assembly; 1001. Mounting frame; 1002. Electric control unit; 1003. Lining plate; 1004. Winding drum. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-6 In the present embodiment: a handheld crack width gauge comprises a width gauge body 1, which has a connecting portion 2, a gripping portion 3, a power cord 6 and a detection end 5. The connecting portion 2 and the gripping portion 3 are sequentially arranged at the bottom of the width gauge body 1. The width gauge body 1 is fixedly connected to the connecting portion 2 by welding. A wire plate 4 is arranged on one side of the width gauge body 1. The wire plate 4 is internally connected with a power cord 6. The power cord 6 extends into the width gauge body 1 and is connected with a winding assembly 10. The width gauge body 1 is connected to the detection end 5 through the power cord 6. A control panel 7 is arranged on the front end surface of the width gauge body 1. A detection assembly 8 is arranged inside the detection end 5. The detection assembly 8 comprises a detection head 801 and a second rotating shaft 802. A dust shield 9 is arranged on the front end surface of the detection end 5.

[0027] The width gauge body 1 comprises a slot 101, a cover plate 102, a display panel 103, a rotating slot 104, a first axial hole 105, a rotating portion 106 and a first rotating shaft 107. The front end surface of the width gauge body 1 is provided with a slot 101, the display panel 103 is fixedly installed inside the slot 101, rotating slots 104 are provided on both sides of the top of the slot 101, a first axial hole 105 is provided between the rotating slots 104, and the first rotating shaft 107 is inserted into the first axial hole 105. The interior of the rotating groove 104 is movably connected with a rotating part 106 via a first rotating shaft 107, and a cover plate 102 is fixedly connected to the bottom of the rotating part 106. The size of the cover plate 102 is consistent with the size of the slot 101. The front end face of the width gauge body 1 is a slot 101 structure, and its size is consistent with the size of the cover plate 102. When the device needs to be used, it is only necessary to pull the cover plate 102 to rotate it along the first rotating shaft 107. When not in use, the display panel 103 can be effectively prevented from being covered with dust.

[0028] In this embodiment, a snap-in groove 201 is provided at the bottom of the connecting part 2 and a fixing rod is fixedly connected to the center of the bottom. An anti-slip sleeve can be fixedly installed on the outside of the gripping part 3 and snap-in plates 301 are fixedly installed around the top end surface. The size of the snap-in plate 301 is consistent with the size of the snap-in groove 201. A fixing hole 302 is provided on the inner side of the snap-in plate 301 in the middle of the end surface of the gripping part 3. The size of the fixing hole 302 is consistent with the size of the fixing rod. The gripping part 3 is fixedly connected to the connecting part 2 through the snap-in groove 201 and the snap-in plate 301 in cooperation with the fixing rod, so that the width gauge body 1, the connecting part 2 and the gripping part 3 form an integrated structure, making the structural connection of the device more compact. , the gripping portion 3 can be provided with an anti-slip cover to enhance the gripping feeling during use and prevent slipping; the detecting end 5 includes a receiving groove 501, a threading hole 502, a second shaft hole 503 and a slide groove 504. The end face of the detecting end 5 is provided with a receiving groove 501, and the bottom of the detecting end 5 is provided with a threading hole 502. The power cord 6 is connected to the detecting head 801 through the threading hole 502. Second shaft holes 503 are provided on both sides of the inner wall of the receiving groove 501. The size of the second shaft hole 503 is consistent with the size of the second rotating shaft 802 and there is a rotating connection. Slide grooves 504 are provided on both sides of the inner wall of the receiving groove 501 at the front end of the second shaft hole 503. The dust shield 9 is specifically an L-shaped structure and Slide blocks 901 are fixedly connected on both sides, and the dust shield plate 9 is movably connected to the end face of the receiving groove 501 through the slide block 901 and the slide groove 504. The front end face of the detection end 5 is detachably connected through the slide block 901 and the slide groove 504, so that the dust shield plate 9 can be covered on the end face of the detection end 5 to prevent dust from entering the receiving groove 501. The device uses the second rotating shaft 802 to reasonably store the detection component 8 to avoid unnecessary losses caused by damage when not in use; the winding component 10 includes a mounting frame 1001, an electric control unit 1002, a lining plate 1003 and a winding drum 1004. A base is fixedly installed inside the width gauge body 1, and the top end face of the base A mounting frame 1001 is fixedly installed, and an electric control unit 1002 is fixedly installed on one side of the mounting frame 1001 by bolts. The output end of the electric control unit 1002 is movably connected to a driving shaft, which is inserted into the mounting frame 1001 and has lining plates 1003 movably installed on both sides. A winding drum 1004 is fixedly installed between the two groups of lining plates 1003. The movement of the electric control unit 1002 drives the driving shaft to rotate, so that the winding drum 1004 can complete the winding of the power cord 6. When the winding drum 1004 completes the winding, as the power cord 6 is wound, it can drive the detection component 8 to rotate to the inside of the accommodating groove 501, replacing manual operation, making the device more convenient and quick.

[0029] The working principle and use process of the utility model are as follows: when the width gauge is put into use, it is only necessary to pull the cover plate 102 to rotate it along the first rotating shaft 107, so that the display panel 103 can be exposed, and then the dust shield plate 9 is removed, and the electric control unit 1002 is started to drive the driving shaft to rotate so that the winding drum 1004 completes the line-releasing operation. The staff moves the detection end 5 to the area to be detected, and the operation can be completed through the detection head 801. When the width gauge completes the detection, the electric control unit 1002 moves to drive the driving shaft to rotate, so that the winding drum 1004 can complete the winding of the power cord 6. When the winding drum 1004 completes the winding, as the power cord 6 is wound, the detection component 8 can be driven to rotate to the inside of the accommodating groove 501.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A handheld crack width measuring instrument, characterized in that: include: A width gauge body (1) comprises a connecting portion (2), a gripping portion (3), a power cord (6) and a detection end (5); the connecting portion (2) and the gripping portion (3) are arranged at the bottom of the width gauge body (1) in sequence; the width gauge body (1) and the connecting portion (2) are fixedly connected by welding; a wire plate (4) is arranged on one side of the width gauge body (1); a power cord (6) is connected inside the wire plate (4); the power cord (6) extends into the width gauge body (1) and is connected to a winding assembly (10); the width gauge body (1) is connected to the detection end (5) via the power cord (6); a control panel (7) is arranged on the front end surface of the width gauge body (1); a detection assembly (8) is arranged inside the detection end (5); the detection assembly (8) comprises a detection head (801) and a second rotating shaft (802); and a dust shield (9) is arranged on the front end surface of the detection end (5); The width gauge body (1) comprises a slot (101), a cover plate (102), a display panel (103), a rotating slot (104), a first axial hole (105), a rotating portion (106) and a first rotating shaft (107). The front end surface of the width gauge body (1) is provided with a slot (101), a display panel (103) is fixedly mounted inside the slot (101), rotating slots (104) are provided on both sides of the top of the slot (101), a first axial hole (105) is provided between the rotating slots (104), a first rotating shaft (107) is inserted inside the first axial hole (105), the rotating portion (106) is movably connected inside the rotating slot (104) via the first rotating shaft (107), and the bottom of the rotating portion (106) is fixedly connected with the cover plate (102), and the size of the cover plate (102) is consistent with that of the slot (101).

2. A handheld crack width measuring instrument according to claim 1, characterized in that: The bottom of the connecting portion (2) is provided with a snap-in groove (201) and a fixing rod is fixedly connected to the center of the bottom. The outer side of the holding portion (3) can be fixedly installed with an anti-slip sleeve and the top end surface is fixedly installed with snap-in plates (301) all around. The size of the snap-in plates (301) is consistent with the size of the snap-in groove (201). The inner side of the snap-in plate (301) is provided with a fixing hole (302) located in the middle of the end surface of the holding portion (3). The size of the fixing hole (302) is consistent with the size of the fixing rod.

3. A handheld crack width measuring instrument according to claim 1, characterized in that: The detection end (5) comprises a receiving groove (501), a threading hole (502), a second axial hole (503) and a slide groove (504); the end surface of the detection end (5) is provided with a receiving groove (501); the bottom of the detection end (5) is provided with a threading hole (502); the power cord (6) is connected to the detection head (801) through the threading hole (502); the inner wall of the receiving groove (501) is provided with a second axial hole (503) on both sides; the size of the second axial hole (503) is consistent with the size of the second rotating shaft (802) and there is a rotation connection; the inner wall of the receiving groove (501) is provided with a slide groove (504) at the front end of the second axial hole (503); the dust shield (9) is specifically an L-shaped structure and both sides are fixedly connected with sliders (901).

4. A handheld crack width measuring instrument according to claim 2, characterized in that: The dust isolation plate (9) is movably connected to the end surface of the accommodating groove (501) via a slider (901) and a slide groove (504).

5. A handheld crack width measuring instrument according to claim 1, characterized in that: The winding assembly (10) comprises a mounting frame (1001), an electric control unit (1002), a lining plate (1003) and a winding drum (1004); a base is fixedly mounted inside the width gauge body (1); a mounting frame (1001) is fixedly mounted on the top end surface of the base; an electric control unit (1002) is fixedly mounted on one side of the mounting frame (1001) by means of bolts; a driving shaft is movably connected to an output end of the electric control unit (1002); the driving shaft is plugged into the mounting frame (1001) and lining plates (1003) are movably mounted on both sides; a winding drum (1004) is fixedly mounted between two groups of lining plates (1003).

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