CN110411316B - Power transmission and transformation engineering steel bar protective layer thickness detection auxiliary device - Google Patents
Power transmission and transformation engineering steel bar protective layer thickness detection auxiliary device Download PDFInfo
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- CN110411316B CN110411316B CN201910693202.1A CN201910693202A CN110411316B CN 110411316 B CN110411316 B CN 110411316B CN 201910693202 A CN201910693202 A CN 201910693202A CN 110411316 B CN110411316 B CN 110411316B
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- 239000011241 protective layer Substances 0.000 title claims abstract description 21
- 230000005540 biological transmission Effects 0.000 title claims abstract description 18
- 230000009466 transformation Effects 0.000 title claims abstract description 18
- 229910000831 Steel Inorganic materials 0.000 title claims description 20
- 239000010959 steel Substances 0.000 title claims description 20
- 238000001514 detection method Methods 0.000 title description 12
- 239000004567 concrete Substances 0.000 claims abstract description 14
- 239000000523 sample Substances 0.000 claims abstract description 13
- 230000007246 mechanism Effects 0.000 claims abstract description 7
- 239000010410 layer Substances 0.000 claims description 23
- 239000004677 Nylon Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 229920001778 nylon Polymers 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 abstract description 3
- 238000005259 measurement Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 2
- 230000003014 reinforcing effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 4
- 230000007704 transition Effects 0.000 description 4
- 230000005484 gravity Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
- G01B5/06—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness for measuring thickness
- G01B5/066—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness for measuring thickness of coating
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The invention discloses an auxiliary device for detecting the thickness of a protective layer of a reinforcing steel bar in power transmission and transformation engineering, and relates to the technical field of power transmission and transformation engineering construction. Comprises a fixed frame and a movable frame. The fixed frame comprises an upper transverse plate, and vertical plates are respectively hinged to the left end and the right end of the upper transverse plate. And the left end and the right end of the upper transverse plate are respectively provided with a tightening plate, and the tightening plates are respectively provided with a first tightening bolt. The movable frame comprises a transverse sliding plate, the left end and the right end of the transverse sliding plate are respectively connected with the vertical plate through connecting plates, a vertical sliding plate is arranged on the vertical plate, and a guide groove is formed in the connecting plates. A positioning mechanism is arranged between the connecting plate and the vertical sliding plate. The transverse sliding plate is provided with a sliding seat in a sliding mode, the sliding seat is provided with a drawing rod, and the rear end of the drawing rod is provided with a fixing plate used for clamping the probe. The device can effectually solve the problem that the strain is big, test error is big, inefficiency, through probe and the device cooperation at concrete surface accurate mark reinforcing bar position, makes things convenient for the measurement personnel to judge the engineering quality.
Description
Technical Field
The invention relates to the technical field of power transmission and transformation engineering construction, in particular to an auxiliary device for detecting the thickness of a steel bar protection layer in power transmission and transformation engineering.
Background
In a reinforced concrete structure, the thickness of a steel bar protective layer is an important index for ensuring the quality of the structure, and directly influences the physical properties of the member, such as tensile property, shear resistance, bending resistance, earthquake resistance, impact resistance and the like, and also directly influences the safety of the structure. The thickness of the protective layer is too thin, so that the reinforcing steel bar is easy to rust, and the service life of the structure is influenced; if the protective layer is too thick, the bearing capacity of the structure is reduced, and the safety of the structure is affected.
The electromagnetic induction method for detecting the steel bar is a method for detecting the thickness of a steel bar protective layer in concrete, which is widely applied at present, and generally, when the steel bar detector is used for measuring the thickness of the steel bar protective layer in the concrete, a probe needs to be manually moved slowly along the direction vertical to the length of a measured steel bar, and a tester needs to observe a screen of an instrument all the time, so that the following problems are caused:
1. in the detection process, a detector always holds an instrument probe, and the long-time detection consumes large physical strength and is easy to fatigue, so that the test error is caused.
2. When a tester moves the probe of the instrument and observes the screen of the instrument, the probe can be deviated without being perceived, and a test error is generated.
3. At present, the marking of a measuring area is commonly detected by using a mode of matching chalk with a ruler to draw the measuring area, and the method has the defects of low efficiency, high labor intensity and the like.
Disclosure of Invention
Aiming at the problems, the invention provides an auxiliary device for detecting the thickness of a protective layer of a reinforcing steel bar in power transmission and transformation engineering, which can effectively solve the problems of large strain of a working position of a detection operator, large test error and low efficiency.
The technical scheme adopted by the invention for solving the technical problems is as follows:
an auxiliary device for detecting the thickness of a steel bar protection layer in power transmission and transformation engineering comprises a fixed frame and a movable frame;
the fixed frame comprises an upper transverse plate, vertical plates are hinged to the left end and the right end of the upper transverse plate respectively, and the upper ends of the vertical plates protrude above the upper transverse plate;
the left end and the right end of the upper transverse plate are respectively provided with a puller plate, and the puller plates are respectively provided with a first puller bolt for pulling the vertical plate;
the movable frame comprises a transverse sliding plate, the left end and the right end of the transverse sliding plate are respectively connected with the vertical plate through a connecting plate, a vertical sliding plate is arranged on the vertical plate, and a guide groove matched with the vertical sliding plate is arranged on the connecting plate;
a positioning mechanism is arranged between the connecting plate and the vertical sliding plate;
a sliding seat is arranged on the transverse sliding plate in a sliding manner, a drawing rod capable of sliding back and forth relative to the sliding seat is arranged on the sliding seat, an L-shaped fixing plate is fixedly arranged at the rear end of the drawing rod, and an upper clamping plate for clamping the probe is arranged on the fixing plate;
the fixing plate and the upper clamping plate are both made of non-metal materials;
the upper transverse plate comprises an inner layer upper transverse plate and an outer layer upper transverse plate which are connected in a sliding mode, a second tightening bolt is arranged between the inner layer upper transverse plate and the outer layer upper transverse plate, the transverse sliding plate sequentially comprises a first transverse sliding plate and a second transverse sliding plate which are connected in a sliding mode from back to front, a third tightening bolt is arranged between the first transverse sliding plate and the second transverse sliding plate, transverse sliding grooves are formed in the upper side faces of the first transverse sliding plate and the second transverse sliding plate, and guide plates matched with the transverse sliding grooves are arranged on the sliding seats.
Furthermore, the cross section of the inner layer upper transverse plate is T-shaped.
Furthermore, the positioning mechanism comprises positioning pins arranged between the connecting plate and the vertical sliding plate, and a plurality of positioning holes are uniformly distributed on the vertical sliding plate.
Further, the connecting plate on from back forward set gradually first limiting plate, second limiting plate and guide block, first limiting plate and second limiting plate form the guide way jointly, guide block and second limiting plate on be provided with respectively with locating pin matched with guiding hole, the middle part of locating pin is provided with the boss, the locating pin on be located boss and second limiting plate between the cover be equipped with first spring, the front end of locating pin is provided with a wedge, the connecting plate on be located the top of wedge be provided with the mounting panel, just the wedge pass through the guide arm with mounting panel sliding connection, the upper end of guide arm is provided with the lifting rod, the guide arm on be located wedge and mounting panel between the cover be equipped with the second spring, the mounting panel on be provided with the handle.
Furthermore, a measuring tape is arranged between the two connecting plates, a first through hole and a second through hole for accommodating the measuring tape are respectively arranged on the connecting plates and the sliding seat, and a pressing bolt for pressing the free end of the measuring tape is arranged on one of the connecting plates.
Furthermore, a position indicating hole communicated with the second through hole is formed in the sliding seat.
Furthermore, the lower end of the vertical plate is provided with a hook plate for hooking the front side surface of the concrete foundation.
Furthermore, a handle is fixedly arranged at the front end of the pull rod.
Furthermore, the fixing plate and the upper clamping plate are both made of nylon materials.
The invention has the beneficial effects that:
1. by using the auxiliary device, the physical consumption of operators can be effectively reduced, the working efficiency is improved, the measurement accuracy is guaranteed, and the measurement error is reduced.
2. The auxiliary device is simple to operate and practical, can adapt to concrete foundations of different sizes, and has good universality.
Drawings
FIG. 1 is a schematic perspective view of an auxiliary detection device;
FIG. 2 is an enlarged schematic view of portion A of FIG. 1;
FIG. 3 is an enlarged schematic view of portion B of FIG. 1;
FIG. 4 is an enlarged schematic view of a portion C of FIG. 1;
FIG. 5 is an enlarged schematic view of a portion D of FIG. 1;
FIG. 6 is an enlarged schematic view of section E of FIG. 1;
FIG. 7 is an enlarged view of portion F of FIG. 1;
FIG. 8 is a top view of the detection aid;
FIG. 9 is a sectional view A-A of FIG. 8;
FIG. 10 is a cross-sectional view taken along line B-B of FIG. 8;
FIG. 11 is an enlarged schematic view of portion G of FIG. 10;
FIG. 12 is an enlarged schematic view of portion H of FIG. 10;
FIG. 13 is an enlarged view of section I of FIG. 10;
FIG. 14 is a left side view of the detection aid;
in the figure: 1-a fixed frame, 11-an upper transverse plate, 111-an inner layer upper transverse plate, 112-an outer layer upper transverse plate, 113-a second puller bolt, 12-a vertical plate, 121-a vertical sliding plate, 122-a positioning hole, 123-a hook plate, 13-a puller plate, 131-a first puller bolt, 132-a rib plate, 2-a moving frame, 21-a transverse sliding plate, 211-a first transverse sliding plate, 212-a second transverse sliding plate, 213-a third puller bolt, 22-a connecting plate, 221-a mounting plate, 2211-a handle, 222-a guide block, 223-a first through hole, 23-a positioning pin, 231-a boss, 24-a first spring, 25-a wedge block, 251-a guide rod, 252-a lifting rod, 26-a second spring and 27-a pressing bolt, 28-supporting box, 3-sliding seat, 31-guide plate, 32-drawing rod, 33-handle, 34-fixing plate, 341-screw rod, 342-locking nut, 35-upper clamping plate, 36-second through hole, 37-position indicating hole, 4-concrete foundation and 5-probe.
Detailed Description
For convenience of description, a coordinate system is now defined as shown in fig. 1.
As shown in fig. 1, an auxiliary device for detecting the thickness of a protective layer of a steel bar in power transmission and transformation engineering includes a fixed frame 1, the fixed frame 1 can be fixedly connected with a concrete foundation in a clamping manner, a movable frame 2 capable of sliding up and down along the fixed frame 1 is arranged on the fixed frame 1, a sliding base 3 capable of sliding left and right along the movable frame 2 is arranged on the movable frame 2, and a probe 5 of the protective layer thickness detecting device can be mounted on the sliding base 3.
As shown in fig. 1, 2 and 3, the fixed frame 1 includes an upper horizontal plate 11, vertical plates 12 are respectively disposed at left and right ends of the upper horizontal plate 11, the vertical plates 12 are hinged to the upper horizontal plate 11, and an upper end of the vertical plates 12 protrudes above the upper horizontal plate 11. The upper cross plate 11 is provided with a tightening plate 13 at each of the left and right ends of the upper cross plate 11, and the tightening plate 13 is provided with a first tightening bolt 131 for tightening the vertical plate 12.
Further, a rib plate 132 is arranged between the tightening plate 13 and the upper cross plate 11.
During installation, the upper transverse plate 11 of the fixed frame 1 is firstly placed on the upper side surface of the guessed concrete foundation 4, then the first tightening bolts 131 at the left end and the right end of the upper transverse plate 11 are respectively screwed, and the vertical plate 12 clamps the concrete foundation 4 under the action of the first tightening bolts 131, so that the fixed installation between the fixed frame 1 and the concrete foundation 4 is realized.
As shown in fig. 1, the moving frame 2 includes a transverse sliding plate 21, the left and right ends of the transverse sliding plate 21 are respectively provided with a connecting plate 22 through screws, as shown in fig. 2 and 3, the outer side surfaces of the vertical plates 12 are respectively provided with a vertical sliding plate 121, and as shown in fig. 8, the inner side surfaces of the connecting plates 22 are respectively provided with a guide groove matched with the vertical sliding plate 121. The moving frame 2 can slide up and down relative to the fixed frame 1, and a positioning mechanism for fixing the moving frame 2 is arranged between the connecting plate 22 and the vertical sliding plate 121.
As a specific implementation manner, as shown in fig. 2 and 8, the vertical plate 12 and the vertical sliding plate 121 in this embodiment are an integral structure, and the cross section formed is T-shaped. Thus, the requirement of up-and-down sliding can be satisfied, and the rigidity of the vertical plate 12 can be increased.
As shown in fig. 1, a lateral sliding slot is provided on the upper side of the lateral sliding plate 21 and penetrates the lateral sliding plate 21 along the lateral direction. The transverse sliding plate 21 is provided with a sliding seat 3 which can slide left and right along the transverse sliding plate 21, and the lower side surface of the sliding seat 3 is provided with a guide plate 31 matched with the transverse sliding groove. Preferably, the cross section of the transverse sliding groove is T-shaped, and correspondingly, the cross section of the guide plate 31 is T-shaped.
As shown in fig. 6, a pull rod 32 capable of sliding back and forth relative to the slide carriage 3 is disposed on the slide carriage 3, a pull handle 33 is fixedly disposed at the front end of the pull rod 32, and a fixing plate 34 for mounting the probe 5 of the protective layer thickness detection device is fixedly disposed at the rear end of the pull rod 32. As shown in fig. 12, the fixing plate 34 is L-shaped, an upper clamping plate 35 is disposed above the fixing plate 34, a screw 341 is disposed on an upper end surface of the fixing plate 34, and the screw 341 passes through the upper clamping plate 35 and extends above the upper clamping plate 35. The screw 341 is provided with a lock nut 342 for clamping the probe 5.
As a specific implementation manner, two drawing rods 32 are disposed between the fixing plate 34 and the pulling handle 33 in this embodiment, and the cross section of the drawing rods 32 is circular.
In order to avoid interference to the detection of the probe 5, the fixing plate 34 (including the screw 341 disposed on the fixing plate 34), the upper clamp plate 35 and the locking nut 342 are all made of nylon materials. Here, the fixing plate 34 and the screw 341 are integrally formed.
Further, in order to adapt to concrete foundations 4 with different sizes, as shown in fig. 2, the upper cross plate 11 includes an inner layer upper cross plate 111 and an outer layer upper cross plate 112, the inner layer upper cross plate 111 is slidably connected with the outer layer upper cross plate 112, and a second tightening bolt 113 for locking the relative position between the inner layer upper cross plate 111 and the outer layer upper cross plate 112 is arranged between the two. Correspondingly, the two tightening plates 13 are respectively arranged on the inner layer upper transverse plate 111 and the outer layer upper transverse plate 112.
In one embodiment, as shown in fig. 13, the cross section of the inner layer upper transverse plate 111 is T-shaped.
Correspondingly, as shown in fig. 8, the transverse sliding plate 21 includes a first transverse sliding plate 211 and a second transverse sliding plate 212 in sequence from back to front, the first transverse sliding plate 211 is slidably connected to the second transverse sliding plate 212, and a third tightening bolt 213 for locking the relative position between the first transverse sliding plate 211 and the second transverse sliding plate 212 is disposed between the first transverse sliding plate 211 and the second transverse sliding plate 212. As a specific implementation manner, as shown in fig. 10, in this embodiment, a T-shaped sliding slot is disposed on a front side surface of the first transverse sliding plate 211, and a T-shaped sliding block matched with the T-shaped sliding slot is disposed on a rear side surface of the second transverse sliding plate 212. As shown in fig. 10, the upper side surfaces of the first transverse sliding plate 211 and the second transverse sliding plate 212 are respectively provided with a transverse sliding slot arranged along the left-right direction, and correspondingly, the sliding base 3 is provided with two guide plates 31.
The positioning mechanism comprises positioning pins 23 arranged between the connecting plate 22 and the vertical sliding plate 121, and a plurality of positioning holes 122 matched with the positioning pins 23 are uniformly distributed on the vertical sliding plate 121.
Further, for convenience of operation, as shown in fig. 8 and 9, a first limiting plate, a second limiting plate and a guide block 222 are sequentially arranged on the inner side surface of the connecting plate 22 from back to front, and the connecting plate 22, the first limiting plate and the second limiting plate together form a guide groove for accommodating the vertical sliding plate 121. The guide block 222 and the second limiting plate are respectively provided with a guide hole matched with the positioning pin 23, and the positioning pin 23 can slide back and forth along the guide holes. The middle part of the positioning pin 23 is provided with an annular boss 231 coaxially arranged with the positioning pin 23, and a first spring 24 is sleeved on the positioning pin 23 and positioned between the boss 231 and the second limiting plate. The front end of the positioning pin 23 is provided with a wedge block 25, and under the pressing action of the wedge block 25, the positioning pin 23 is inserted into the positioning hole 122 of the vertical sliding plate 121, so as to realize the positioning in the vertical direction. A mounting plate 221 extending horizontally and inwardly is disposed on the connecting plate 22 above the wedge 25, a guide rod 251 is disposed on an upper side surface of the wedge 25, and the guide rod 251 passes through the mounting plate 221 and extends above the mounting plate 221. The upper end of the guide rod 251 is provided with a lifting rod 252, and a second spring 26 is sleeved on the guide rod 251 between the wedge block 25 and the mounting plate 221. The mounting plate 221 is provided with a U-shaped handle 2211, and the handle 2211 encloses the lifting rod 252 therein.
Thus, when the position of the moving frame 2 needs to be adjusted up and down, the lifting rod 252 is pulled up while the handle 2211 is gripped, the wedge 25 moves up, the second spring 26 is compressed, the positioning pin 23 loses the pressing support at this time, and moves to the front side by the restoring force of the first spring 24, thereby disengaging from the positioning hole 122. After the positioning pin 23 is moved to the preset position, the lifting rod 252 is released, and at the moment, the wedge block 25 moves downwards under the action of the second spring 26, so that the positioning pin 23 is pressed, the positioning pin 23 is pressed into the corresponding positioning hole 122, and the position is fixed.
Further, as shown in fig. 5, 6 and 7, a measuring tape (not shown) is disposed between the two connecting plates 22, the connecting plates 22 and the sliding base 3 are respectively provided with a first through hole 223 and a second through hole 36 for accommodating the measuring tape, and one of the connecting plates 22 is provided with a pressing bolt 27 for pressing the free end of the measuring tape.
Preferably, a supporting box 28 for supporting the tape box is arranged on the outer side surface of the other connecting plate 22.
Preferably, a position indicating hole 37 communicated with the second through hole 36 is formed on the upper side surface of the sliding seat 3 at a position corresponding to the center of the fixing plate 34.
Therefore, in the actual detection process, the concrete foundation 4 does not need to be marked firstly, and after the detection is finished, the distance between the marked marks is measured through the straight ruler. Through setting up the tape measure, can record in real time and detect the distance between two reinforcing bars at the in-process that actually detects, not only measuring result is accurate, and it is more convenient to use moreover, raises the efficiency.
When the tape measure box is installed, the free end of the tape measure is pulled out, the tape measure box sequentially penetrates through the first through hole 223, the second through hole 36 and the first through hole 223 from right to left, then the compression bolt 27 on the left connecting plate 22 is screwed, and then the tape measure box is placed in the support box 28. At this time, when the lateral sliding plate 21 is adjusted to extend or contract, the tape measure also extends or contracts along with the extension or contraction of the lateral sliding plate 21.
Further, as shown in fig. 4, a transition plate extending forward is disposed at the lower end of the vertical plate 12, a baffle plate extending inward (the opposite side of the two transition plates is the inner side) is disposed at the suspended end of the transition plate, the transition plate and the baffle plate together form an L-shaped hook plate 123, and the hook plate 123 can hook the front side of the concrete foundation 4 to limit the fixed frame 1 from rotating to the rear side.
As shown in fig. 14, the center of gravity of the whole auxiliary device is close to the right, the whole auxiliary device tends to rotate in the counterclockwise direction under the action of gravity, and the hook plate 123 arranged at the lower end of the vertical plate 12 can just limit the counterclockwise rotation tendency of the auxiliary device, so that the whole fixing structure is more stable.
Claims (9)
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910693202.1A CN110411316B (en) | 2019-07-30 | 2019-07-30 | Power transmission and transformation engineering steel bar protective layer thickness detection auxiliary device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910693202.1A CN110411316B (en) | 2019-07-30 | 2019-07-30 | Power transmission and transformation engineering steel bar protective layer thickness detection auxiliary device |
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| CN110411316A CN110411316A (en) | 2019-11-05 |
| CN110411316B true CN110411316B (en) | 2021-04-06 |
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| CN113074609B (en) * | 2021-03-23 | 2024-01-16 | 广州建筑工程监理有限公司 | Device and method for detecting thickness of reinforcement protection layer for engineering construction supervision |
| CN116475844B (en) * | 2023-04-14 | 2024-03-15 | 临沂杰航海洋科技有限责任公司 | Thickness detection device for ironwork cutting |
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