Hand-held simple verification device for reinforcing steel bar mechanical connection joint

Abstract

The utility model relates to a handheld simple verification device for a reinforcing steel bar mechanical connection joint, and belongs to the technical field of reinforcing steel bar detection. Comprising a fixing seat erected on a connecting sleeve and fixed relative to the connecting sleeve, the fixing seat is provided with a straight ruler parallel to the axis of the connecting sleeve and fixedly connected with the fixing seat, the bottom of the straight ruler is provided with first scales in the length direction, and the bottom of the straight ruler is provided with a first measuring foot and a second measuring foot corresponding to a reinforcing steel bar. The first measuring foot and the second measuring foot are arranged on the two sides of the fixing base respectively and can slide in the axis direction of the connecting sleeve. According to the utility model, through data detection of the joint, whether a gap exists between two steel bars in the connecting sleeve can be visually determined, whether the sleeve is centered can be visually judged, and whether the exposed screw pitches at the two ends of the mechanical connecting joint meet related requirements can be judged.

Description

Technical Field

[0001] The utility model relates to a handheld simple verification device for a steel bar mechanical connection joint, belonging to the technical field of steel bar detection. Background Art

[0002] Rebar connection refers to the connection method of rebar. At present, the main connection methods of rebar in production include binding lap joint, welding, mechanical connection, etc. Among them, mechanical connection of rebar is called the "third generation of rebar joint" after binding and electric welding. It has the advantages of higher joint strength than the parent material of rebar, 5 times faster than electric welding, no pollution, and 20% saving of steel. Although rebar connection has many advantages as mentioned above, in the actual operation process, due to the proficiency of workers, operation methods, verification devices, verification methods and other reasons, mechanical connection is prone to problems such as too large gap in the middle and center deviation. In the process inspection link, there are problems such as large arbitrariness and non-standardization, which makes it unable to play its original advantages.

[0003] Chinese patent (CN208805136U) discloses a verification device for a mechanical connection joint of a steel bar, comprising a fixed seat mounted on a connection sleeve and fixed relatively to the connection sleeve, a sliding rod parallel to the axis of the connection sleeve and slidably connected to the fixed seat is provided on the fixed seat, a measuring rod slidably connected to the sliding rod is embedded in the sliding rod, a first measuring foot perpendicular to the measuring rod is provided on the measuring rod, and the end of the first measuring foot abuts against the steel bar body; a second measuring foot is provided on the sliding rod to abut against the end face of the connection sleeve by sliding. The utility model measures the length of the threads of the two steel bar thread ends exposed outside the connection sleeve respectively, thereby calculating and judging whether the thread lengths of the two steel bar thread ends extending into the connection sleeve are the same, effectively reducing the error caused by manual visual inspection.

[0004] The problem with the above patent is that it can only determine whether the thread lengths of the two steel bar thread ends extending into the connecting sleeve are the same, but cannot intuitively determine whether there is a gap between the two steel bars placed in the connecting sleeve. Utility Model Content

[0005] The technical problem to be solved by the utility model is: to overcome the deficiencies of the prior art and to provide a handheld simple verification device for a mechanical connection joint of a steel bar, which can intuitively determine whether there is a gap between two steel bars placed in a connection sleeve by detecting data on the joint.

[0006] The utility model discloses a handheld simple calibration device for a mechanical connection joint of a steel bar, comprising a fixing seat mounted on a connecting sleeve and fixed relatively to the connecting sleeve, a straight ruler parallel to the axis of the connecting sleeve and fixedly connected to the fixing seat is provided on the fixing seat, a first scale is provided along the length direction at the bottom of the straight ruler, a first measuring foot and a second measuring foot are provided at the bottom of the straight ruler corresponding to the steel bar, the first measuring foot and the second measuring foot are respectively arranged on two sides of the fixing seat, and the first measuring foot and the second measuring foot can slide along the axis direction of the connecting sleeve.

[0007] Make a notch at the position 10cm away from the end of the two steel bars, adjust the distance between the first measuring foot and the second measuring foot to 20cm, then clamp the first measuring foot at the notch of one steel bar, and check whether the second measuring foot is clamped at the corresponding notch of the other steel bar. If the second measuring foot is at the notch of the other steel bar, it means there is no gap between the two steel bars; if the second measuring foot is not at the notch of the other steel bar, it means there is a gap between the two steel bars. The result is clear at a glance.

[0008] Tracks are arranged between the first measuring foot and the straight ruler and between the second measuring foot and the straight ruler. Grooves are arranged on the tracks corresponding to the first measuring foot and the second measuring foot. Both the first measuring foot and the second measuring foot can slide on the tracks.

[0009] A level bubble is arranged on the top of the straight ruler.

[0010] The zero point of the first scale is close to the first measuring foot.

[0011] The first scale is extended in the direction of increasing values. When the second measuring foot is not stuck at the steel bar notch, it means that there is a gap between the two steel bars. The second measuring foot is moved to the steel bar notch, and the value on the extended scale corresponding to the second measuring foot is subtracted from the maximum value on the first scale to obtain the amount of the gap. The gap amount can be compared with the mechanical test results of multiple different gap specimens in the laboratory in advance to determine whether the gap is within the controllable range and whether the joint quality meets the design and relevant specifications.

[0012] The fixing seat is provided with a second scale, and the zero point of the second scale is placed at the center of the length direction of the fixing seat, and the middle position of the first scale is consistent with the zero point position of the second scale. When the first measuring foot and the second measuring foot are both stuck at the steel bar notch, check whether the second scale on the fixing seat and the zero point position correspond to the middle of the sleeve, and you can visually judge whether the sleeve is centered.

[0013] The surface of the fixing seat opposite to the connecting sleeve is arranged in an arc shape and fits with the outer circumferential surface of the connecting sleeve.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] (1) The utility model provides a straight ruler and a first measuring foot and a second measuring foot that can slide on the straight ruler, so that the distance between the first measuring foot and the second measuring foot is the same as the distance between the notches on the two steel bars. The first measuring foot is placed at one of the notches, and the second measuring foot is observed to be placed at the other notch, so that it can be intuitively determined whether there is a gap between the two steel bars placed in the connecting sleeve.

[0016] (2) A second scale is provided on the fixing seat, and the zero point of the second scale is placed at the center of the length direction of the fixing seat. When the first measuring foot and the second measuring foot are both stuck in the steel bar notch, check whether the zero point position of the second scale on the fixing seat corresponds to the middle of the sleeve. This can visually determine whether the sleeve is centered, and further determine whether the exposed pitch at both ends of the mechanical connection joint meets the specification requirements.

[0017] (3) There is a level bubble on the top of the ruler, which allows you to visually see whether the ruler is in a horizontal position.

[0018] (4) Extend the first scale in the direction of increasing values. When the second measuring foot is not stuck at the steel bar notch, it means that there is a gap between the two steel bars. Move the second measuring foot to the steel bar notch. Subtract the maximum value on the first scale from the value on the extended scale corresponding to the second measuring foot to obtain the amount of the gap. The gap amount can be compared with the mechanical test results of specimens with different gaps in the laboratory to determine whether the gap is within the controllable range and whether the joint quality meets the design and relevant specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of embodiment 1 of the utility model.

[0020] In the figure: 1. first measuring foot; 2. track; 3. fixing seat; 4. connecting sleeve; 5. second scale; 6. first scale; 7. second measuring foot; 8. steel bar; 9. straight ruler; 10. level bubble; 11. extended scale. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with embodiments:

[0022] Example 1

[0023] like Figure 1As shown, the utility model discloses a handheld simple calibration device for a mechanical connection joint of a steel bar, comprising a fixing seat 3 mounted on a connecting sleeve 4 and fixed relatively to the connecting sleeve 4, a straight ruler 9 parallel to the axis of the connecting sleeve 4 and fixedly connected to the fixing seat 3 is provided on the fixing seat 3, a first scale 6 is arranged at the bottom of the straight ruler 9 along the length direction, the area range of the first scale 6 is 0-30 cm, the first scale 6 is extended in the direction of increasing the value to set an extended scale 11, the area range of the extended scale 11 is 30-32 cm, a first measuring foot 1 and a second measuring foot 7 are arranged at the bottom of the straight ruler 9 corresponding to the steel bar 8, the first measuring foot 1 and the second measuring foot 7 are respectively arranged on both sides of the fixing seat 3, the zero point of the first scale 6 is arranged close to the first measuring foot 1, and the first measuring foot 1 and the second measuring foot 7 can slide along the axis direction of the connecting sleeve 4.

[0024] Tracks 2 are arranged between the first measuring foot 1 and the straight ruler 9 and between the second measuring foot 7 and the straight ruler 9. Grooves are arranged on the track 2 corresponding to the first measuring foot 1 and the second measuring foot 7. The first measuring foot 1 and the second measuring foot 7 can slide on the track 2. A level bubble 10 is arranged on the top of the straight ruler 9.

[0025] The fixing base 3 is provided with a second scale 5, the zero point of the second scale 5 is placed at the center of the length direction of the fixing base 3, the middle position of the first scale 6 is consistent with the zero point of the second scale 5, the area of ​​the second scale 5 extending from the center line to both sides is 0-5 cm, and the 15 cm position of the first scale 6 is consistent with the zero point of the second scale 5. The surface of the fixing base 3 opposite to the connecting sleeve 4 is arranged in an arc shape, and fits with the outer circumferential surface of the connecting sleeve 4.

[0026] Working process: make a notch at a position 15cm away from the end of the two steel bars 8, place the first measuring foot 1 at the zero position of the first scale 6, and place the second measuring foot 7 at the 30cm position of the first scale 6, then clamp the first measuring foot 1 at the notch of one steel bar 8, and check whether the second measuring foot 7 is correspondingly clamped at the notch of the other steel bar 8. If the second measuring foot 7 is at the notch of the other steel bar 8, it means that there is no gap between the two steel bars 8; if the second measuring foot 7 is not at the notch of the other steel bar 8, it means that there is a gap between the two steel bars 8. Move the second measuring foot 7 to the notch of the other steel bar 8, and subtract 30cm from the value on the extended scale 11 corresponding to the second measuring foot 7, which is the amount of the gap. When the second measuring foot 7 is at the notch of the other steel bar 8, check the zero point of the second scale 5 under the fixing seat 3, and whether the zero point position corresponds to the middle of the sleeve, so as to judge whether the sleeve is centered. If the zero point of the second scale 5 is not in the middle of the sleeve, observe the value on the second scale 5 corresponding to the middle of the sleeve, which is the amount of offset.

[0027] The description of the direction and relative position relationship of the structure in the present invention, such as the description of front, back, left, right, up, and down, does not constitute a limitation of the present invention, but is only for the convenience of description.

Claims

1. A handheld simple verification device for steel bar mechanical connection joints, characterized in that: The invention comprises a fixing seat (3) mounted on a connecting sleeve (4) and fixed relative to the connecting sleeve (4); a straight ruler (9) parallel to the axis of the connecting sleeve (4) and fixedly connected to the fixing seat (3) is provided on the fixing seat (3); a first scale (6) is provided at the bottom of the straight ruler (9) along the length direction; a first measuring foot (1) and a second measuring foot (7) are provided at the bottom of the straight ruler (9) corresponding to the steel bar (8); the first measuring foot (1) and the second measuring foot (7) are respectively arranged on two sides of the fixing seat (3); and the first measuring foot (1) and the second measuring foot (7) can slide along the axis direction of the connecting sleeve (4).

2. The handheld simple verification device for steel bar mechanical connection joints according to claim 1 is characterized in that: A track (2) is arranged between the first measuring foot (1) and the straight ruler (9) and between the second measuring foot (7) and the straight ruler (9); grooves are arranged on the track (2) corresponding to the first measuring foot (1) and the second measuring foot (7); and both the first measuring foot (1) and the second measuring foot (7) can slide on the track (2).

3. The handheld simple verification device for steel bar mechanical connection joints according to claim 1 is characterized in that: A level bubble (10) is provided on the top of the straight ruler (9).

4. The handheld simple verification device for steel bar mechanical connection joints according to claim 1 is characterized in that: The zero point of the first scale (6) is close to the first measuring foot (1).

5. The handheld simple verification device for steel bar mechanical connection joints according to claim 1 is characterized in that: The first scale (6) is extended in the direction of increasing the value to form an extended scale (11).

6. A handheld simple verification device for a steel bar mechanical connection joint according to any one of claims 1 to 5, characterized in that: A second scale (5) is provided on the fixing seat (3), the zero point of the second scale (5) is located at the center position in the length direction of the fixing seat (3), and the middle position of the first scale (6) is consistent with the zero point position of the second scale (5).

7. The handheld simple verification device for steel bar mechanical connection joints according to claim 6 is characterized in that: The surfaces of the fixing seat (3) facing the connecting sleeve (4) are arranged in an arc shape and fit with the outer circumferential surface of the connecting sleeve (4).

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