Double-position attaching type wall internal corner crack detection frame
By designing a double-position, close-fitting wall corner crack detection frame and utilizing hinged and threaded positioning components, the problem of being unable to measure wall corner cracks was solved, and accurate measurement of the width of corner cracks was achieved.
Patent Information
- Application Number
- CN202520555169.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2035-03-27
AI Technical Summary
In existing technologies, cracks at the inside corners of walls cannot be effectively measured. Conventional tools such as steel rulers and vernier calipers cannot provide support at the inside corners, resulting in errors in the measurement data.
A dual-position, abutment-type wall corner crack detection frame is designed, comprising two strip plates and a positioning component. The positioning plates are abutted and moved by hinge and thread connection, which can accurately measure the crack width of the corner line.
It enables accurate measurement of cracks in the wall's internal corner, reduces measurement errors, and adapts to the needs of different internal corner positions.
Smart Images

Figure CN223807844U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a double-position abutting type wall internal corner crack detection frame and belongs to the crack detection field. BACKGROUND
[0002] Wall crack detection is an important link for ensuring the safety and service life of building structures, and crack monitoring usually uses methods such as steel ruler, vernier caliper, crack width meter, joint meter, and photogrammetry. The distance of the crack is measured to obtain the crack displacement value by using tools such as scale, small steel ruler, or vernier caliper, and the position, trend, length, width, depth, and initial measurement date of each crack are recorded.
[0003] There are generally three cases of wall cracks
[0004] 1. There are cracks on the surface of the wall. When this situation occurs, whether a steel ruler or a vernier caliper is used, the tool can be directly attached to the crack for measurement, and the measurement result of the crack can be directly obtained.
[0005] 2. There are cracks on the external corner line of the wall, and the cracks are consistent with the trend of the external corner line of the wall. Although a steel ruler or a vernier caliper can directly measure the crack width data, the tool has no support point at the external corner position, and cannot be measured stably. The tool can only be held by hand to ensure its balance, and the possibility of measurement error is large.
[0006] 3. There are cracks on the internal corner line of the wall, and the cracks are consistent with the trend of the internal corner line of the wall. In this case, a vernier caliper cannot be used because it cannot be inserted into the position of the internal corner line, and a common steel ruler can only measure the plane. Since the crack on the internal corner line is located at the intersection position of the two walls, the steel ruler can only measure the plane data and cannot be used at the angle position of the wall.
[0007] The measurement tools in the prior art are all for measuring the cracks on the plane of the wall. When facing the cracks on the internal corner line of the wall, the measurement tools such as scale, small steel ruler, or vernier caliper cannot meet the measurement requirements in this specific situation because the position of the internal corner line is special and the angle of the wall at the internal corner line is different. CONTENT OF THE UTILITY MODEL
[0008] To overcome the defects in the prior art, a double-position abutting type wall internal corner crack detection frame is provided to solve the above problems.
[0009] The utility model provides a kind of double-position abutting type wall body internal corner crack detection frame, including two strip thin plates and two crack positioning components, the adjacent end of the two strip thin plates is hinged, and positioning component is arranged between two strip thin plates, each crack positioning component is slidably arranged on the side of each strip thin plate along its length direction;Each crack positioning component includes positioning plate, threaded rod and knob, the acute angle of the positioning plate near the hinge end of strip thin plate, the face of the acute angle edge of positioning plate is located on the same horizontal plane with the outside of strip thin plate, the lower end surface of positioning plate is provided with T-shaped slide along its length direction, T-shaped slide groove is processed on the side of each strip thin plate along its length direction, T-shaped slide is slidably installed in T-shaped slide groove, the end of threaded rod is provided with knob, the other end of threaded rod is hinged with the inner wall of T-shaped slide groove near the head of strip thin plate, and the positioning plate is threadedly connected with threaded rod.
[0010] As a preferred scheme: it further includes hand-held component simultaneously hinged with the two strip thin plates;The hand-held component includes handle, hinge and two support rods, the two support rods are arranged at one end of the hinge, one end of each support rod is hinged with the tail of the strip thin plate close thereto, the other end of each support rod is hinged with one end of the hinge, and the other end of the hinge is connected with the upper end of the handle.
[0011] As a preferred scheme: each support rod includes pipe arm, head piece, inner arm and first screw, one end of the head piece is hinged on the hinge, the other end of the head piece is provided with the inner arm, the pipe arm, the inner arm and the head piece are coaxially arranged in sequence, the inner arm is arranged in the pipe arm, the first screw is arranged along the thickness direction of the pipe arm and abuts on the outer wall of the inner arm.
[0012] As a preferred scheme: the handle is provided with anti-skid sleeve.
[0013] As a preferred scheme: the positioning component includes cylinder, round rod, second screw, two connectors and two U-shaped pieces, one end of the round rod is arranged in one end of the cylinder, the other end of the round rod is provided with one of the two connectors, the other end of the cylinder is provided with the other of the two connectors, the second screw is arranged along the thickness direction of the cylinder and abuts on the outer wall of the round rod, each connector is hinged on each U-shaped piece, and each U-shaped piece is detachably connected to the inner side wall of each strip thin plate.
[0014] As a preferred scheme: the knob is circumferentially provided with prismatic protrusion facilitating screwing.
[0015] The utility model has the advantages that:
[0016] The wall internal corner crack detection device in the utility model is a device for detecting the width of cracks when the wall internal corner line position cracks, can satisfy the measurement demand of the wall internal corner line position of different angles, and the measurement data is accurate, the utility model discloses through the hinged end of two strip thin plates is attached to the internal corner of wall body, and two strip thin plates are unfolded, make it is attached to the wall on the two sides of internal corner line, when every positioning plate is also attached to the adjacent wall, rotate every knob, and the knob drives the threaded rod to rotate, and the threaded rod is connected with the positioning plate screw, so the acute angle end of the positioning plate is attached to the wall and moves to the internal corner line position at this time, when the acute angle end of the positioning plate moves to the crack edge of internal corner line, stop, the distance between the acute angle of two positioning plates is the width of crack at this time, the utility model discloses is beneficial to accurately obtaining the relevant data of the crack of internal corner position. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;
[0018] Figure 2 It is the three-dimensional structure schematic diagram of strip thin plate;
[0019] Figure 3 It is the three-dimensional structure schematic diagram of crack positioning assembly;
[0020] Figure 4 It is the partial cross section structure schematic diagram of crack positioning assembly;
[0021] Figure 5 It is the three-dimensional structure schematic diagram of handheld assembly;
[0022] Figure 6 It is the three-dimensional structure schematic diagram of support rod;
[0023] Figure 7 It is the three-dimensional structure schematic diagram of positioning assembly;
[0024] Figure 8 It is the use state schematic diagram of the utility model with internal corner crack measurement.
[0025] In the drawing: 1-strip thin plate;1-1-1-T type sliding groove;2-crack positioning assembly;2-1-positioning plate;2-1-1-T type sliding piece;2-2-threaded rod;2-3-knob;3-handheld assembly;3-1-handle;3-2-hinge;3-3-support rod;3-3-1-tube arm;3-3-2-head piece;3-3-3-inner arm;3-3-4-first screw;4-positioning assembly;4-1-cylinder;4-2-round rod;4-3-second screw;4-4-connection piece;4-5-U piece;5-wall;6-crack. DETAILED DESCRIPTION
[0026] The following describes the embodiments of the present application through specific examples. Those skilled in the art can easily understand other advantages and effects of the present application from the disclosure. The present application can also be implemented or applied through different specific embodiments, and the details in the specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present application.
[0027] Specific embodiment one: combination Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 This embodiment is described. A double-position abutting type wall corner crack detection frame in this embodiment includes two strip-shaped thin plates 1 and two crack positioning assemblies 2. Adjacent ends of the two strip-shaped thin plates 1 are hingedly connected, so that the two strip-shaped thin plates 1 can be bent at any angle with the hinged position as the axis. A positioning assembly 4 is arranged between the two strip-shaped thin plates 1. Each crack positioning assembly 2 is slidingly arranged on the side of each strip-shaped thin plate 1 along the length direction thereof. Each crack positioning assembly 2 includes a positioning plate 2-1, a threaded rod 2-2 and a knob 2-3. The positioning plate 2-1 is acute near the hinged end of the strip-shaped thin plate 1, which is more convenient for observing whether the positioning plate 2-1 moves to the edge of the crack 6. The face where the acute edge of the positioning plate 2-1 is located is on the same horizontal plane as the outer side of the strip-shaped thin plate 1, so that the positioning plate 2-1 is also abutted on the wall, which is more conducive to observing the movement position of the acute corner of the positioning plate 2-1. The lower end face of the positioning plate 2-1 is provided with a T-shaped slide 2-1-1 along the length direction thereof. The side of each strip-shaped thin plate 1 along the length direction thereof is machined with a T-shaped sliding groove 1-1-1 matched with the T-shaped slide 2-1-1. The T-shaped slide 2-1-1 is slidingly installed in the T-shaped sliding groove 1-1-1. One end of the threaded rod 2-2 is provided with the knob 2-3. The other end of the threaded rod 2-2 is hingedly connected with the inner wall near the head of the strip-shaped thin plate 1 and the T-shaped sliding groove 1-1-1. The positioning plate 2-1 is threadedly connected with the threaded rod 2-2.
[0028] The utility model especially adapts to measure the crack width generated at the joint position between two wall surfaces. When the crack at the internal corner is measured, the process is as follows: the hinged ends of the two strip-shaped plates 1 are attached to the internal corner of the wall 5, and the two strip-shaped plates 1 are unfolded to the two side walls 5, so that they are attached to the walls on both sides of the internal corner line. At this time, each positioning plate 2-1 is also attached to the adjacent wall, each knob 2-3 is rotated, the knob 2-3 drives the threaded rod 2-2 to rotate, the threaded rod 2-2 is threadedly connected with the positioning plate 2-1, so that the acute angle end of the positioning plate 2-1 moves to the position of the internal corner line while attaching to the wall, and the movement of the acute angle end of the positioning plate 2-1 is stopped when it reaches the edge of the crack 6 of the internal corner line. At this time, the distance between the acute angle ends of the two positioning plates 2-1 is the width of the crack 6.
[0029] The utility model can also measure the crack width generated at the wall surface, and the specific process is as follows: after the two strip-shaped plates 1 are adjusted to 180°, they are attached to the crack 6 of the wall surface, and the positions of the two strip-shaped plates 1 are kept unchanged and the direction of the crack 6 is perpendicular to the strip-shaped plate 1. The crack 6 is located between the two positioning plates 2-1. At this time, each knob 2-3 is rotated, the knob 2-3 drives the threaded rod 2-2 to rotate, the threaded rod 2-2 is threadedly connected with the positioning plate 2-1, the positioning plate 2-1 is driven to move, the acute angle end of the positioning plate 2-1 moves to the edge of the crack 6 while attaching to the wall, and the movement is stopped. At this time, the distance between the acute angle ends of the two positioning plates 2-1 is the width of the crack 6 of the wall surface.
[0030] Specific implementation method two: the embodiment is a further limitation of the specific implementation method one, and further comprises a handheld assembly 3 hinged to the two strip-shaped plates 1. When the internal corner line at a high position is measured, the handheld assembly 3 makes the operator more labor-saving when in use. The handheld assembly 3 comprises a handle 3-1, a hinge 3-2 and two support rods 3-3. The two support rods 3-3 are arranged at one end of the hinge 3-2. One end of each support rod 3-3 is hinged to the tail of the strip-shaped plate 1 close to the support rod 3-3. The other end of each support rod 3-3 is hinged to one end of the hinge 3-2, so that the two support rods 3-3 can be unfolded synchronously with the opening angle of the two strip-shaped plates 1. The other end of the hinge 3-2 is connected to the upper end of the handle 3-1.
[0031] When the hinged ends of the two strip-shaped plates 1 are attached to the internal corner of the wall 5, the operator only needs to hold the handle 3-1 and apply force to the hinged ends of the two strip-shaped plates 1, so that the two strip-shaped plates 1 can be easily attached to the two side walls 5 of the internal corner line respectively. The two support rods 3-3 can adapt to the opening angle of the two strip-shaped plates 1 and can adapt to the internal corner line wall 5 of different angles.
[0032] Specific embodiment three: the embodiment is further limited to the embodiment two, each support rod 3-3 includes a tube arm 3-3-1, a head piece 3-3-2, an inner arm 3-3-3 and a first screw 3-3-4, one end of the head piece 3-3-2 is hinged on the hinge piece 3-2, the other end of the head piece 3-3-2 is provided with the inner arm 3-3-3, the tube arm 3-3-1, the inner arm 3-3-3 and the head piece 3-3-2 are coaxially arranged in sequence, the inner arm 3-3-3 is arranged in the tube arm 3-3-1, so that the inner arm 3-3-3 is freely telescopic in the tube arm 3-3-1, the first screw 3-3-4 is arranged along the thickness direction of the tube arm 3-3-1, the first screw 3-3-4 is attached to the outer wall of the inner arm 3-3-3, and the extension length of the inner arm 3-3-3 is fixed by the first screw 3-3-4.
[0033] When the position of the female corner line is too high, the first screw 3-3-4 is loosened, the inner arm 3-3-3 is extended outward along the length direction of the tube arm 3-3-1, and then the position of the inner arm 3-3-3 is fixed by the first screw 3-3-4 attached to the inner arm 3-3-3, so that the length of each support rod 3-3 is changed, when the length of the two support rods 3-3 is increased, the working length of the utility model is increased, and the utility model is more labor-saving when facing the detection of the female corner line with too high height.
[0034] The utility model is especially suitable for measuring the crack width generated at the joint position between two wall surfaces. When the crack at the external corner is measured, the following process is as follows: the two extended support rods 3-3 are unfolded, the two strip-shaped plates 1 are located on the same horizontal line, the hinge positions of the two strip-shaped plates 1 are pressed towards the support rod 3-3, the closed figure formed by the two strip-shaped plates 1 and the handheld assembly 3 is "V" type, at this time, the two strip-shaped plates 1 wrap the wall body 5 external corner line, and are pressed by the handheld assembly 3, so that the strip-shaped plate 1 is attached to the wall, and the steps of the crack positioning assembly 2 are repeated, so that the width of the external corner line crack 6 can be measured.
[0035] Specific embodiment four: the embodiment is further limited to the embodiment two or three, the handle 3-1 is provided with an anti-skid sleeve, the comfort and firmness of hand holding are improved.
[0036] Specific embodiment five: the embodiment is further limited to the first embodiment, the positioning assembly 4 includes a cylinder 4-1, a round rod 4-2, a second screw 4-3, two connecting pieces 4-4 and two U-shaped pieces 4-5, one end of the round rod 4-2 is provided at one end of the cylinder 4-1, the other end of the round rod 4-2 is provided with one of the two connecting pieces 4-4, the other end of the cylinder 4-1 is provided with the other of the two connecting pieces 4-4, the second screw 4-3 is arranged along the thickness direction of the cylinder 4-1, the second screw 4-3 is attached to the outer wall of the round rod 4-2, the extension length of the round rod 4-2 is fixed by the second screw 4-3, each connecting piece 4-4 is hinged on each U-shaped piece 4-5, and each U-shaped piece 4-5 is detachably connected to the inner side wall of each strip-shaped sheet 1.
[0037] After loosening the second screw 4-3, the above operation is repeated, the two strip-shaped sheets 1 are gradually unfolded and attached to the wall of the internal corner line, the round rod 4-2 will gradually extend along the length direction of the cylinder 4-1 with the gradual unfolding of the two strip-shaped sheets 1, so as to adapt to the different angles of the unfolding of the two strip-shaped sheets 1, when the strip-shaped sheet 1 is attached to the wall, the second screw 4-3 is tightened to be attached to the round rod 4-2, the length of the cylinder 4-1 and the round rod 4-2 is fixed, after the crack positioning assembly 2 is measured, the utility model is directly taken down, the positioning assembly 4 keeps the state of the two strip-shaped sheets 1 unchanged, so that the distance between the two positioning plates 2-1 is kept unchanged, and the measurement is more convenient.
[0038] Specific embodiment six: the embodiment is further limited to the first embodiment, the round knob 2-3 is circumferentially provided with a prismatic protrusion convenient for screwing.
[0039] Working principle:
[0040] The hinged ends of the two strip-shaped sheets 1 are attached to the internal corner of the wall body 5, and the two strip-shaped sheets 1 are unfolded and attached to the walls on both sides of the internal corner line, the positioning assembly 4 fixes the positions of the unfolded two strip-shaped sheets 1, at this time, each positioning plate 2-1 is also attached to the adjacent wall, each round knob 2-3 is rotated, the round knob 2-3 drives the threaded rod 2-2 to rotate, the threaded rod 2-2 is threadedly connected with the positioning plate 2-1, so the acute angle end of the positioning plate 2-1 moves towards the internal corner line position with the wall at this time, and stops when the acute angle end of the positioning plate 2-1 moves to the edge of the crack 6 of the internal corner line, at this time, the distance between the acute angles of the two positioning plates 2-1 is the width of the crack 6.
Claims
1. A double-position, abutment-type wall corner crack detection frame, characterized in that: The application relates to a crack positioning device for a strip-shaped thin plate (1), which comprises two strip-shaped thin plates (1) and two crack positioning assemblies (2), the adjacent ends of the two strip-shaped thin plates (1) are hingedly connected, a positioning assembly (4) is arranged between the two strip-shaped thin plates (1), and each crack positioning assembly (2) is slidingly arranged on the side of each strip-shaped thin plate (1) along the length direction of the strip-shaped thin plate (1). Each crack positioning assembly (2) comprises a positioning plate (2-1), a threaded rod (2-2) and a knob (2-3), the end of the positioning plate (2-1) close to the hingedly connected end of the strip-shaped thin plate (1) is an acute angle, the plane where the acute angle edge of the positioning plate (2-1) is located is located on the same horizontal plane as the outer side of the strip-shaped thin plate (1), the lower end surface of the positioning plate (2-1) is provided with a T-shaped slide (2-1-1) along the length direction of the positioning plate (2-1), the side of each strip-shaped thin plate (1) along the length direction of the strip-shaped thin plate (1) is machined with a T-shaped sliding groove (1-1-1) matched with the T-shaped slide (2-1-1), the T-shaped slide (2-1-1) is slidingly arranged in the T-shaped sliding groove (1-1-1), the end of the threaded rod (2-2) is provided with the knob (2-3), the other end of the threaded rod (2-2) is hingedly connected with the inner wall of the T-shaped sliding groove (1-1-1) close to the head of the strip-shaped thin plate (1), and the positioning plate (2-1) is threadedly connected with the threaded rod (2-2).
2. The dual-position abutting type wall inside corner crack detection frame according to claim 1, characterized in that: The application further comprises a handheld assembly (3) hingedly connected with the two strip-shaped thin plates (1) simultaneously, the handheld assembly (3) comprises a handle (3-1), a hinge piece (3-2) and two supporting rods (3-3), the two supporting rods (3-3) are arranged at one end of the hinge piece (3-2), one end of each supporting rod (3-3) is hingedly connected with the tail of the strip-shaped thin plate (1) close to the supporting rod (3-3), the other end of each supporting rod (3-3) is hingedly connected with one end of the hinge piece (3-2), and the other end lower end surface of the hinge piece (3-2) is connected with the upper end of the handle (3-1).
3. The dual-position abutting type wall inside corner crack detection frame according to claim 2, characterized in that: Each supporting rod (3-3) comprises a tube arm (3-3-1), a head piece (3-3-2), an inner arm (3-3-3) and a first screw (3-3-4), one end of the head piece (3-3-2) is hingedly connected to the hinge piece (3-2), the other end of the head piece (3-3-2) is provided with the inner arm (3-3-3), the tube arm (3-3-1), the inner arm (3-3-3) and the head piece (3-3-2) are coaxially arranged in sequence, the inner arm (3-3-3) is arranged in the tube arm (3-3-1), the tube arm (3-3-1) is provided with the first screw (3-3-4) along the thickness direction of the tube arm (3-3-1), and the first screw (3-3-4) is attached to the outer wall of the inner arm (3-3-3).
4. The dual-position abutting type wall inside corner crack detection frame according to claim 2 or 3, characterized in that: The handle (3-1) is provided with an antiskid sleeve.
5. The dual-position abutting type wall inside corner crack detection frame according to claim 1, characterized in that: The positioning assembly (4) comprises a cylinder (4-1), a round rod (4-2), a second screw (4-3), two connecting pieces (4-4) and two U-shaped pieces (4-5), one end of the round rod (4-2) is arranged at one end of the cylinder (4-1), the other end of the round rod (4-2) is provided with one of the two connecting pieces (4-4), the other end of the cylinder (4-1) is provided with the other of the two connecting pieces (4-4), the cylinder (4-1) is provided with the second screw (4-3) along the thickness direction of the cylinder (4-1), the second screw (4-3) is attached to the outer wall of the round rod (4-2), each connecting piece (4-4) is hinged on each U-shaped piece (4-5), and each U-shaped piece (4-5) is detachably connected to the inner side wall of each strip-shaped thin plate (1).
6. The dual-position abutting type wall inside corner crack detection frame according to claim 1, characterized in that: The rotating knob (2-3) is circumferentially provided with prismatic protrusions facilitating rotation.