Steel bar protective layer thickness detection device for constructional engineering

Abstract

The utility model discloses a reinforcing steel bar protective layer thickness detection device for constructional engineering, which comprises a displacement seat, a scanner is arranged in the inner cavity of the displacement seat, the top of the displacement seat is fixedly connected with an adjusting frame, the inner cavity of the adjusting frame is fixedly connected with a fixed column, the surface of the fixed column is rotatably connected with a push rod, and the push rod is fixedly connected with the displacement seat. An adjusting assembly is arranged in an inner cavity of the adjusting frame and comprises a sliding sleeve connected to the surface of the push rod in a sliding mode, limiting pins are fixedly connected to the bottoms of the front side and the rear side of the sliding sleeve correspondingly, and arc-shaped sliding grooves matched with the limiting pins are formed in the front side and the rear side of the adjusting frame correspondingly. According to the utility model, the adjusting frame and the adjusting assembly are used in cooperation to adjust the pushing angle of the push rod to the displacement seat, and the displacement seat, the scanner and the control panel are used in cooperation to detect the thickness of the reinforcement protective layer at the detection position. The device is labor-saving and convenient, and is suitable for the thickness detection of steel bar protection layers in wall surfaces at different positions.

Description

Technical Field

[0001] This utility model belongs to the field of steel reinforcement protective layer thickness detection technology, and in particular relates to a steel reinforcement protective layer thickness detection device for building engineering. Background Technology

[0002] A rebar cover thickness detector is a specialized instrument used to detect the thickness of the concrete cover for rebar in concrete structures. Its basic principle is based on electromagnetic induction. When the instrument's probe approaches the rebar in the concrete, the electromagnetic field generated by the probe induces a current in the rebar. This induced current then generates a secondary electromagnetic field. The instrument determines the location of the rebar and the thickness of the cover by detecting the intensity of the secondary electromagnetic field. Since the intensity of the secondary electromagnetic field is related to the distance between the rebar and the probe (i.e., the cover thickness), the closer the distance, the stronger the secondary electromagnetic field. The cover thickness can be calculated using appropriate algorithms and calibration curves.

[0003] When using an electromagnetic scanner to detect the thickness of the concrete cover of reinforcing bars, the small size of the instrument's operating handle requires the user to be close to the detection location to scan. This makes it inconvenient to measure reinforcing bars on the ground or in high walls, or requires prolonged squatting or using climbing equipment during the measurement process, making the operation cumbersome and laborious. Therefore, there is a need for a device for detecting the thickness of the concrete cover of reinforcing bars in construction engineering, which adopts an adjustable angle operating structure to adjust the operating angle of the electromagnetic scanner, thereby facilitating labor-saving and convenient detection of different locations. Utility Model Content

[0004] The purpose of this invention is to provide a device for detecting the thickness of the protective layer of reinforcing steel in building engineering. It adopts an adjustable angle operating structure to adjust the operating angle of the electromagnetic scanning instrument, thereby making it easier and more convenient for users to perform labor-saving and convenient testing on the detection surface at different locations, thus solving the above-mentioned technical problems.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A device for detecting the thickness of the protective layer of steel bars in building engineering includes a displacement seat: a scanner is provided in the inner cavity of the displacement seat, an adjustment frame is fixedly connected to the top of the displacement seat, a fixed column is fixedly connected to the inner cavity of the adjustment frame, a push rod is rotatably connected to the surface of the fixed column, an adjustment assembly is provided in the inner cavity of the adjustment frame, the adjustment assembly includes a sliding sleeve slidably connected to the surface of the push rod, a limit pin is fixedly connected to the bottom of the front and rear sides of the sliding sleeve, an arc-shaped groove adapted to the limit pin is opened on the front and rear sides of the adjustment frame, a plurality of limit slots adapted to the limit pin are opened at the top of the inner cavity of the arc-shaped groove, a spring is sleeved on the bottom of the surface of the push rod, the top and bottom ends of the spring are welded to the sliding sleeve and the push rod respectively, a control panel is fixedly installed on the top of the push rod, a handle is fixedly connected to the top of the push rod, and a propulsion assembly is provided at the bottom of the handle.

[0006] Preferably, the propulsion assembly includes a control lever, a fixing pin is fixedly connected to the bottom of the handle, the control lever is rotatably connected to the surface of the fixing pin, and a push plate is fixedly connected to the top of the control lever, the push plate being sleeved on the surface of the push rod.

[0007] Preferably, the top of the sliding sleeve is set as an inclined surface, and one side of the push plate slides in contact with the top of the sliding sleeve.

[0008] Preferably, a torsion spring is fitted on both the front and rear sides of the fixing pin, one end of the torsion spring is welded to the fixing pin, and the other end of the torsion spring is welded to the control lever.

[0009] Preferably, both ends of the front and rear sides of the displacement seat are threaded with threaded knobs, and one end of the threaded knob passes through the inner cavity of the displacement seat and is threadedly connected to the scanner.

[0010] Preferably, pulleys are rotatably connected to both ends of the front and rear sides of the displacement seat.

[0011] The beneficial effects of this utility model are:

[0012] 1. This utility model uses the adjustment frame and adjustment components together to adjust the pushing angle of the push rod on the displacement seat. At the same time, the displacement seat, scanner and control panel are used together to detect the thickness of the concrete cover of the steel reinforcement at the detection position. This achieves the purpose of saving effort and convenience and being applicable to the detection of the thickness of the concrete cover of steel reinforcement in the wall at different locations.

[0013] 2. The present invention, through the setting of the push assembly, wherein the cooperation of the control lever and the push plate exerts a sloping extrusion effect on the sliding sleeve, so that the sliding sleeve can slide on the surface of the push rod, thereby allowing the limit pin to disengage from the inner cavity of the limit slot, thus facilitating the user to adjust the push angle of the displacement seat and improving the convenience and efficiency of the detection process.

[0014] 3. By using pulleys, this utility model provides support for the displacement seat while also enabling it to move, thus facilitating the user to move the scanner's detection position and improving the efficiency of detecting the thickness of the concrete protective layer. Attached Figure Description

[0015] in:

[0016] Figure 1 This is a perspective view of one embodiment of the present utility model;

[0017] Figure 2 This is an exploded perspective view of the push rod, control panel, and propulsion assembly according to one embodiment of the present invention;

[0018] Figure 3 This is one embodiment of the present utility model. Figure 2 A magnified view of point A in the middle;

[0019] Figure 4 This is a three-dimensional exploded view of a displacement seat, scanner, adjustment frame, and adjustment assembly according to an embodiment of the present invention.

[0020] The attached diagram lists the components represented by each number as follows:

[0021] 1. Displacement seat; 2. Scanner; 3. Adjustment frame; 4. Fixed column; 5. Push rod; 6. Adjustment assembly; 61. Sliding sleeve; 62. Limit pin; 63. Arc-shaped slide groove; 64. Limit slot; 65. Spring; 7. Control panel; 8. Handle; 9. Push assembly; 91. Control lever; 92. Fixed pin; 93. Torsion spring; 94. Push plate; 10. Threaded knob; 11. Pulley. Detailed Implementation

[0022] In the following description, embodiments of the steel reinforcement protective layer thickness detection device for building engineering according to the present invention will be described with reference to the accompanying drawings.

[0023] Figure 1-4This invention illustrates an embodiment of a rebar cover thickness detection device for building construction, comprising a displacement seat 1. A scanner 2 is housed within the inner cavity of the displacement seat 1. Threaded knobs 10 are threadedly connected to both the front and rear ends of the displacement seat 1. One end of each threaded knob 10 penetrates the inner cavity of the displacement seat 1 and is threadedly connected to the scanner 2. Pulleys 11 are rotatably connected to both the front and rear ends of the displacement seat 1. The pulleys 11 provide support for the displacement seat 1 while also enabling its mobility, thus facilitating the user to move the detection position of the scanner 2. To improve the efficiency of detecting the thickness of the concrete protective layer, an adjusting frame 3 is fixedly connected to the top of the displacement seat 1. A fixed column 4 is fixedly connected to the inner cavity of the adjusting frame 3. A push rod 5 is rotatably connected to the surface of the fixed column 4. An adjusting assembly 6 is provided in the inner cavity of the adjusting frame 3. The adjusting assembly 6 includes a sliding sleeve 61 that is slidably connected to the surface of the push rod 5. Limit pins 62 are fixedly connected to the bottom of the front and rear sides of the sliding sleeve 61. Arc-shaped grooves 63 that are adapted to the limit pins 62 are opened on the front and rear sides of the adjusting frame 3. Multiple limit clips that are adapted to the limit pins 62 are opened on the top of the inner cavity of the arc-shaped grooves 63. A spring 65 is fitted onto the bottom of the surface of the push rod 5 in groove 64. The top and bottom ends of the spring 65 are welded to the sliding sleeve 61 and the push rod 5, respectively. A control panel 7 is fixedly installed on the top of the push rod 5. A handle 8 is fixedly connected to the top of the push rod 5. A propulsion assembly 9 is provided at the bottom of the handle 8. The propulsion assembly 9 includes a control lever 91. A fixing pin 92 is fixedly connected to the bottom of the handle 8. The control lever 91 is rotatably connected to the surface of the fixing pin 92. A push plate 94 is fixedly connected to the top of the control lever 91. The push plate 94 is fitted onto the surface of the push rod 5. The top of the sliding sleeve 61 is set as an inclined surface. One side of the push plate 94... The top of the sliding sleeve 61 is in sliding contact with the side. The front and rear sides of the fixing pin 92 are both fitted with torsion springs 93. One end of the torsion spring 93 is welded to the fixing pin 92, and the other end of the torsion spring 93 is welded to the control rod 91. Through the setting of the push assembly 9, the control rod 91 and the push plate 94 work together to exert a slope pressing effect on the sliding sleeve 61, so that the sliding sleeve 61 can slide on the surface of the push rod 5, thereby allowing the limiting pin 62 to disengage from the inner cavity of the limiting slot 64, which makes it convenient for the user to adjust the push angle of the displacement seat 1 and improves the convenience and efficiency of the detection process.

[0024] Working Principle: In use, the user installs the scanner 2 inside the displacement seat 1 and secures it using the threaded knob 10. The user then adjusts the pushing angle of the displacement seat 1 according to their needs and comfort. During adjustment, the user grips the control lever 91, causing it to rotate around the fixing pin 92. Simultaneously, the control lever 91 drives the push plate 94 to press against the top of the sliding sleeve 61, causing the sliding sleeve 61 to slide on the surface of the push rod 5. This, in turn, causes the sliding sleeve 61 to disengage the limiting pin 62 from the inner cavity of the current limiting slot 64. When the spring 65 is compressed, the user rotates the handle 8, causing the push rod 5 to rotate in the inner cavity of the adjusting frame 3. At the same time, the limiting pin 62 slides in the inner cavity of the arc-shaped slide groove 63 until the appropriate angle is reached. Then the user releases the control lever 91. At this time, the torsion spring 93 and the spring 65 rebound and push the sliding sleeve 61 upward, so that the limiting pin 62 is engaged in the inner cavity of the current limiting slot 64. After determining the pushing angle, the user holds the handle 8 to push the displacement seat 1, so that the pulley 11 rolls at the detection position. The concrete in the wall can then be scanned and detected by the scanner 2.

[0025] In summary, this rebar cover thickness detection device for building construction, through the coordinated use of the adjusting frame 3 and the adjusting component 6, adjusts the pushing angle of the push rod 5 on the displacement seat 1. At the same time, through the coordinated use of the displacement seat 1, the scanner 2 and the control panel 7, the rebar cover thickness at the detection location is detected, thus achieving the purpose of labor-saving convenience and applicability to the detection of rebar cover thickness in different locations on the wall.

Claims

1. A device for detecting the thickness of the protective layer of reinforcing steel bars in building construction, characterized in that, The utility model provides displacement seat (1) including, the inner chamber of displacement seat (1) is provided with scanner (2), the top fixedly connected with adjusting frame (3) of displacement seat (1), the inner chamber fixedly connected with fixed column (4) of adjusting frame (3), the surface rotatablely connected with push rod (5) of fixed column (4), the inner chamber of adjusting frame (3) is provided with adjusting assembly (6), adjusting assembly (6) includes the sliding sleeve (61) of sliding connection in the surface of push rod (5), the bottom of front side and rear side of sliding sleeve (61) is fixedly connected with limit pin (62), the front side and rear side of adjusting frame (3) are all set up with the arc -shaped sliding slot (63) of being suitable for limit pin (62), the top of arc -shaped sliding slot (63) inner chamber is set up with a plurality of limit card slot (64) of being suitable for limit pin (62), the bottom of push rod (5) surface is equipped with spring (65), and the top end and bottom end of spring (65) are welded with sliding sleeve (61) and push rod (5) respectively, the top fixed mounting of push rod (5) has control panel (7), the top fixedly connected with handle (8) of push rod (5), the bottom of handle (8) is provided with propelling assembly (9).

2. The construction engineering reinforcing bar cover thickness detection device according to claim 1, characterized in that, The propelling assembly (9) includes a control lever (91), a fixed pin (92) is fixedly connected to the bottom of the handle (8), the control lever (91) is rotatably connected to the surface of the fixed pin (92), a push plate (94) is fixedly connected to the top of the control lever (91), and the push plate (94) is sleeved on the surface of the push rod (5).

3. The device for detecting the thickness of a protective layer of a reinforcing bar for a construction work according to claim 2, characterized in that, The top of the sliding sleeve (61) is provided as an inclined surface, and one side of the push plate (94) is in sliding contact with the top of the sliding sleeve (61).

4. The construction engineering reinforcing bar cover thickness detection device according to claim 3, characterized in that, The front side and the rear side of the fixed pin (92) are sleeved with torsional springs (93), one end of the torsional spring (93) is welded with the fixed pin (92), and the other end of the torsional spring (93) is welded with the control lever (91).

5. The device for detecting the thickness of a protective layer of a reinforcing bar for a construction work according to claim 4, characterized in that, The front side and the rear side of the displacement seat (1) are both threadedly connected with a threaded knob (10), one end of the threaded knob (10) penetrates into the inner chamber of the displacement seat (1) and is threadedly connected with the scanner (2).

6. The device for detecting the thickness of a protective layer of a reinforcing bar for a construction work according to claim 5, characterized by The front side and the rear side of the displacement seat (1) are both rotatably connected with a pulley (11).

Images