CN209978879U - Building engineering straightness detection device that hangs down - Google Patents
Building engineering straightness detection device that hangs down Download PDFInfo
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- CN209978879U CN209978879U CN201920372156.0U CN201920372156U CN209978879U CN 209978879 U CN209978879 U CN 209978879U CN 201920372156 U CN201920372156 U CN 201920372156U CN 209978879 U CN209978879 U CN 209978879U
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Abstract
The utility model relates to a detection device, more specifically the building engineering straightness detection device that hangs down that says so, including bottom plate telescopic machanism, linkage measuring mechanism, measuring stick mechanism and angulation mechanism, through rotating the drive turn-button to drive the measuring stick and rotate, realize that remote operation detects perpendicularly, and then make its laminating wall in order to detect the straightness that hangs down of wall, rotate two fixing bolt respectively and connect in the front connecting plate with the different fixed orifices of back connection slide, with the length that changes whole device, be convenient for detect the inconvenient straightness that hangs down of wall that approaches of staff.
Description
Technical Field
The utility model relates to a detection device, more specifically the building engineering straightness detection device that hangs down that says so.
Background
The straightness that hangs down is building construction and the important index of safety of living, and consequently to the straightness detection that hangs down of wall etc. in engineering construction is crucial, nevertheless building site carries out multiple construction operation simultaneously because of needs in the work progress, if can set up building operations such as pergola sometimes by building wall, can increase the degree of difficulty for the measuring band of wall straightness that hangs down this moment, is unfavorable for going on of engineering construction, for this the utility model provides a building engineering straightness detection device that hangs down can extend length to remote operation, so that the straightness that hangs down of the inconvenient wall of walking close of detection staff.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a building engineering straightness detection device that hangs down can extend length to remote operation, with the inconvenient straightness that hangs down of wall that approaches of detection staff.
The purpose of the utility model is realized through the following technical scheme:
a construction engineering verticality detection device comprises a bottom plate telescoping mechanism, a linkage measuring mechanism, a measuring rod mechanism and a measuring angle mechanism, wherein the bottom plate telescoping mechanism comprises a front bottom plate, a sliding support plate, a rear bottom plate, forward rollers, a front connecting lug plate, a measuring rod connecting lug plate, a right-angle limiting plate, a measuring angle mechanism fixing groove and a rear connecting lug plate, the sliding support plate is fixedly connected to the rear end of the front bottom plate, the sliding support plate is slidably connected into the rear bottom plate, the four forward rollers are provided, two forward rollers are respectively rotatably connected to the left side and the right side of the front end of the front bottom plate, the other two forward rollers are respectively fixedly connected to the left side and the right side of the rear end of the rear bottom plate, the front connecting lug plate is fixedly connected to the upper side of the front end of the front bottom plate, the measuring rod connecting lug plate is fixedly connected to the front end of the front bottom plate, the right-angle limiting plate is fixedly connected to, the angle measuring mechanism fixing groove is arranged at the front end of the front bottom plate, and the rear connecting lug plate is fixedly connected to the upper side of the rear end of the rear bottom plate;
the linkage measuring mechanism comprises a front connecting plate, a rear connecting sliding plate, fixing holes, a fixed sliding frame, a front linkage rod and a rear linkage rod, wherein the front connecting plate and the rear connecting sliding plate are respectively provided with a plurality of fixing holes, the front connecting plate and the rear connecting sliding plate are respectively connected to the front end and the rear end of the fixed sliding frame in a sliding manner, the front end and the rear end of the fixed sliding frame are respectively provided with two fixing holes, the middle end of the front linkage rod is hinged to the front end of the front connecting plate, the upper end of the rear linkage rod is hinged to the rear end of the rear connecting sliding plate, the lower end of the front linkage rod is hinged to a front connecting lug plate, and the left side of the lower end of the;
the measuring rod mechanism comprises a measuring rod, a connecting chute, a recording pen and a bottom plate connecting rod, the connecting chute is arranged at the right end of the measuring rod, the recording pen is fixedly and slidably connected to the left side of the lower end of the measuring rod, the left end and the right end of the bottom plate connecting rod are respectively and rotatably connected to the left side and the right side of the lower end of the measuring rod, the middle end of the bottom plate connecting rod is rotatably connected into a connecting lug plate of the measuring rod, and the upper end of a front linkage rod is slidably connected;
the angle measuring mechanism comprises an angle measuring mechanism fixing plate, a recording paper background plate, a recording paper fixing groove and an angle gauge, the recording paper background plate is fixedly connected to the front end of the angle measuring mechanism fixing plate, the recording paper fixing groove is formed in the recording paper background plate, the angle gauge is fixedly connected to the left end of the recording paper background plate, and the rear end of the angle measuring mechanism fixing plate is fixedly connected to the inside of the angle measuring mechanism fixing groove.
As a further optimization of this technical scheme, the utility model relates to a building engineering straightness detection device that hangs down, bottom plate telescopic machanism is still including pushing away the frame, pushes away the upside of a fixed connection at rear bottom plate rear end.
As this technical scheme's further optimization, the utility model relates to a building engineering straightness detection device that hangs down, linkage measuring mechanism still includes the drive turn button, and drive turn button fixed connection is on the right side of back trace lower extreme.
As a further optimization of this technical scheme, the utility model relates to a building engineering straightness detection device that hangs down, linkage measuring mechanism still includes fixing bolt, fixing bolt is provided with two, and two fixing bolt's right-hand member rotates respectively and connects in two fixed orificess on fixed slide frame, and two fixing bolt's left end rotates respectively to be connected in the fixed orifices on preceding connecting plate and back connection slide.
The utility model relates to a building engineering straightness detection device that hangs down's beneficial effect does:
through rotating the drive turn-button to drive the measuring stick and rotate, realize that remote operation detects perpendicularly, and then make its laminating wall in order to detect the straightness that hangs down of wall, rotate two fixing bolt respectively and connect in the different fixed orificess of connecting plate and back connection slide in the front, with the length that changes whole device, be convenient for detect the inconvenient straightness that hangs down of wall that approaches of staff.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic view of the overall structure of the construction perpendicularity detecting device of the present invention;
fig. 2 is a schematic structural view of the bottom plate telescoping mechanism of the present invention;
FIG. 3 is a schematic structural view of a partial section of the bottom plate telescoping mechanism of the present invention;
FIG. 4 is a schematic view of a partial structure of the bottom plate telescoping mechanism of the present invention;
fig. 5 is a schematic structural diagram of the linkage measuring mechanism of the present invention;
fig. 6 is a partial structural schematic diagram of the linkage measuring mechanism of the present invention;
fig. 7 is a second partial structural schematic diagram of the linkage measuring mechanism of the present invention;
fig. 8 is a first schematic structural diagram of the measuring rod mechanism of the present invention;
fig. 9 is a second schematic structural view of the measuring rod mechanism of the present invention;
fig. 10 is a schematic structural view of the angle measuring mechanism of the present invention.
In the figure: a bottom plate telescoping mechanism 1; a front floor 1-1; a sliding support plate 1-2; a rear floor 1-3; 1-4 of a forward roller; front connecting ear plates 1-5; the measuring rod is connected with the ear plates 1-6; a right-angle limiting plate 1-7; the angle measuring mechanism is fixed on the groove 1-8; rear connecting ear plates 1-9; 1-10 parts of a push frame; a linkage measuring mechanism 2; a front connecting plate 2-1; the rear part is connected with a sliding plate 2-2; 2-3 of a fixing hole; fixing a sliding frame 2-4; 2-5 of a front linkage rod; 2-6 of a rear linkage rod; driving the turn buttons 2-7; 2-8 parts of a fixing bolt; a measuring rod mechanism 3; a measuring rod 3-1; a connecting chute 3-2; 3-3 of a recording pen; a bottom plate connecting rod 3-4; an angle measuring mechanism 4; an angle measuring mechanism fixing plate 4-1; a recording paper background plate 4-2; recording paper fixing grooves 4-3; and 4, a protractor 4-4.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The first embodiment is as follows:
the embodiment is described below with reference to fig. 1-10, and a building engineering verticality detection device comprises a bottom plate telescoping mechanism 1, a linkage measurement mechanism 2, a measurement rod mechanism 3 and an angle measuring mechanism 4, wherein a rotating button 2-7 is rotationally driven to drive a measurement rod 3-1 to rotate so as to realize the remote operation detection verticality, and further enable the measurement rod 3-1 to be attached to a wall surface so as to detect the verticality of the wall surface, two fixing bolts 2-8 are respectively and rotationally connected into different fixing holes 2-3 of a front connecting plate 2-1 and a rear connecting sliding plate 2-2 so as to change the length of the whole device, so that the verticality of the wall surface which is inconvenient for workers to approach can be conveniently detected, wherein the bottom plate telescoping mechanism 1 comprises a front bottom plate 1-1, a sliding support plate 1-2, a rear bottom plate 1-3, a front idler wheel 1-4 and a front, The measuring rod connecting lug plate 1-6, the right-angle limiting plate 1-7, the angle measuring mechanism fixing groove 1-8 and the rear connecting lug plate 1-9, the sliding supporting plate 1-2 is fixedly connected at the rear end of the front bottom plate 1-1, the sliding supporting plate 1-2 is slidably connected in the rear bottom plate 1-3, four forward rollers 1-4 are arranged, two forward rollers 1-4 are respectively rotatably connected at the left side and the right side of the front end of the front bottom plate 1-1, the other two forward rollers 1-4 are respectively fixedly connected at the left side and the right side of the rear end of the rear bottom plate 1-3, the front connecting lug plate 1-5 is fixedly connected at the upper side of the front end of the front bottom plate 1-1, the measuring rod connecting lug plate 1-6 is fixedly connected at the front end of the front bottom plate 1-1, the right-angle limiting plate 1-7 is fixedly connected at the front end of, the upper surface of the right-angle limiting plate 1-7 is attached to the lower surface of a measuring rod connecting lug plate 1-6, a fixed groove 1-8 of a measuring angle mechanism is arranged at the front end of a front bottom plate 1-1, a rear connecting lug plate 1-9 is fixedly connected to the upper side of the rear end of a rear bottom plate 1-3, when the device is used, the device is pushed to the wall surface, and when the length of the whole device is changed, a sliding supporting plate 1-2 slides back and forth in the rear bottom plate 1-3 along with the change of the length of the device so as to match the change of the length of the device and meet different measuring requirements;
the linkage measuring mechanism 2 comprises a front connecting plate 2-1, a rear connecting sliding plate 2-2, fixing holes 2-3, a fixed sliding frame 2-4, a front linkage rod 2-5 and a rear linkage rod 2-6, wherein the front connecting plate 2-1 and the rear connecting sliding plate 2-2 are respectively provided with a plurality of fixing holes 2-3, the front connecting plate 2-1 and the rear connecting sliding plate 2-2 are respectively and slidably connected with the front end and the rear end of the fixed sliding frame 2-4, the front end and the rear end of the fixed sliding frame 2-4 are respectively provided with two fixing holes 2-3, the fixing holes 2-3 on the front connecting plate 2-1 and the rear connecting sliding plate 2-2 are respectively corresponding to the two fixing holes 2-3 on the fixed sliding frame 2-4 and are fixed through fixing bolts 2-8, so as to change the connecting plate 2-1, The whole length of the rear connecting sliding plate 2-2 and the fixed sliding frame 2-4 is changed to change the available length of the device, the middle end of the front linkage rod 2-5 is hinged at the front end of the front connecting plate 2-1, the upper end of the rear linkage rod 2-6 is hinged at the rear end of the rear connecting sliding plate 2-2, the lower end of the front linkage rod 2-5 is hinged on the front connecting lug plate 1-5, the left side of the lower end of the rear linkage rod 2-6 is hinged on the rear connecting lug plate 1-9, when the device is used, the rotating knob 2-7 is driven by hand clockwise rotation with the axis of the driving rotating knob 2-7 as the central line, the movement of the driving rotating knob 2-7 drives the rear linkage rod 2-6, the axis of the lower end hinge point of the rear linkage rod 2-6 as the central line, the rotation of the rear linkage rod 2-6 drives the rear connecting sliding plate 2-2, the front connecting plate 2-1, the rear connecting sliding plate 2-2 and the fixed sliding frame 2-4 are fixed into a whole through two fixing bolts 2-8, the rear connecting sliding plate 2-2 and the fixed sliding frame 2-4 move together with the front connecting plate 2-1, and the movement of the front connecting plate 2-1 drives the front linkage rod 2-5 to rotate clockwise at the hinged point at the lower end of the front linkage rod 2-5;
the measuring rod mechanism 3 comprises a measuring rod 3-1, a connecting chute 3-2, a recording pen 3-3 and a bottom plate connecting rod 3-4, the connecting chute 3-2 is arranged at the right end of the measuring rod 3-1, the recording pen 3-3 is fixedly and slidably connected at the left side of the lower end of the measuring rod 3-1, the left end and the right end of the bottom plate connecting rod 3-4 are respectively and rotatably connected at the left side and the right side of the lower end of the measuring rod 3-1, the middle end of the bottom plate connecting rod 3-4 is rotatably connected in a measuring rod connecting lug plate 1-6, the upper end of a front coupling rod 2-5 is slidably connected in the connecting chute 3-2, the measuring rod 3-1 is initially attached to the upper surface of the front bottom plate 1-1, and the movement of the front coupling rod 2-5 drives the measuring rod 3-1 to rotate clockwise by taking, until the measuring rod 3-1 is attached to the measured wall surface, when the measuring rod 3-1 rotates, the upper end of the front linkage rod 2-5 slides in the connecting sliding groove 3-2;
the angle measuring mechanism 4 comprises an angle measuring mechanism fixing plate 4-1, a recording paper background plate 4-2, a recording paper fixing groove 4-3 and an angle gauge 4-4, the recording paper background plate 4-2 is fixedly connected to the front end of the angle measuring mechanism fixing plate 4-1, the recording paper fixing groove 4-3 is arranged on the recording paper background plate 4-2, a white paperboard is placed in the recording paper fixing groove 4-3 so that the recording pen 3-3 can draw a rotation route on the white paperboard, the angle gauge 4-4 is fixedly connected to the left end of the recording paper background plate 4-2, when the device is retracted, the route angle on the white paperboard can be measured by the angle gauge 4-4, the rear end of the angle measuring mechanism fixing plate 4-1 is fixedly connected to the angle measuring mechanism fixing groove mechanism 1-8, the rotation of the measuring rod 3-1 drives the recording pen 3-3 to move as same as the measuring rod 3-1, to record the rotation path of the measuring rod 3-1.
The second embodiment is as follows:
the embodiment is described below with reference to fig. 1 to 10, and the embodiment further describes the first embodiment, the bottom plate telescoping mechanism 1 further includes a pushing frame 1 to 10, the pushing frame 1 to 10 is fixedly connected to the upper side of the rear end of the rear bottom plate 1 to 3, and the pushing frame 1 to 10 facilitates the pushing device to approach the wall surface.
The third concrete implementation mode:
the following describes the present embodiment with reference to fig. 1 to 10, and the present embodiment further describes the first embodiment, the linkage measuring mechanism 2 further includes a driving knob 2-7, and the driving knob 2-7 is fixedly connected to the right side of the lower end of the rear linkage rod 2-6.
The fourth concrete implementation mode:
the following describes the present embodiment with reference to fig. 1 to 10, and the present embodiment further describes the first embodiment, the linkage measuring mechanism 2 further includes two fixing bolts 2 to 8, the two fixing bolts 2 to 8 are provided, the right ends of the two fixing bolts 2 to 8 are respectively rotatably connected to the two fixing holes 2 to 3 on the fixed sliding frame 2 to 4, the left ends of the two fixing bolts 2 to 8 are respectively rotatably connected to the front connecting plate 2 to 1 and one fixing hole 2 to 3 on the rear connecting sliding plate 2 to 2, and the two fixing bolts 2 to 8 are the same as the fixing device in length.
The utility model discloses a building engineering straightness detection device that hangs down, its theory of operation is:
when the device is used, the device is pushed to the wall surface, when the device is used, the rotating button 2-7 is driven to rotate clockwise by hands by taking the axis of the driving rotating button 2-7 as a central line, the motion of the driving rotating button 2-7 drives the rear linkage rod 2-6 to rotate clockwise by taking the axis of the hinge point at the lower end of the rear linkage rod 2-6 as a central line, the rotation of the rear linkage rod 2-6 drives the rear connecting sliding plate 2-2 to slide forwards and downwards, the front connecting plate 2-1, the rear connecting sliding plate 2-2 and the fixed sliding frame 2-4 are fixed into a whole through two fixing bolts 2-8, the rear connecting sliding plate 2-2 and the fixed sliding frame 2-4 move together with the front connecting plate 2-1, the motion of the front connecting plate 2-1 drives the front linkage rod 2-5 to rotate clockwise by the lower end of the front linkage, when the device is used, the device is pushed to the wall surface, when the length of the whole device is changed, the sliding support plate 1-2 slides back and forth in the rear bottom plate 1-3 along with the change of the length of the device, different measurement requirements are met by matching the change of the length of the device, the measuring rod 3-1 is initially attached to the upper surface of the front bottom plate 1-1, the movement of the front linkage rod 2-5 drives the measuring rod 3-1 to rotate clockwise by taking the axis of the bottom plate connecting rod 3-4 as a central line until the measuring rod 3-1 is attached to the measured wall surface, when the measuring rod 3-1 rotates, the upper end of the front linkage rod 2-5 slides in the connecting chute 3-2, a white paperboard is placed in the recording paper fixing groove 4-3 so that the recording pen 3-3 can draw a rotating path on the white paperboard, and the protractor 4-4 is fixedly connected to the left end of the recording paper background plate 4-, when the device is retracted, the route angle on the white cardboard can be measured by using the protractor 4-4, the rear end of the fixed plate 4-1 of the protractor mechanism is fixedly connected in the fixed groove 1-8 of the protractor mechanism, and the rotation of the measuring rod 3-1 drives the recording pen 3-3 to move as same as the measuring rod 3-1 so as to record the rotation route of the measuring rod 3-1.
Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and the changes, modifications, additions or replacements made by those skilled in the art within the scope of the present invention also belong to the protection scope of the present invention.
Claims (4)
1. The utility model provides a building engineering straightness detection device that hangs down, includes bottom plate telescopic machanism (1), linkage measuring mechanism (2), measuring stick mechanism (3) and angulation mechanism (4), its characterized in that: the bottom plate telescopic mechanism (1) comprises a front bottom plate (1-1), a sliding support plate (1-2), a rear bottom plate (1-3), forward rollers (1-4), a front connecting lug plate (1-5), a measuring rod connecting lug plate (1-6), a right-angle limiting plate (1-7), an angle measuring mechanism fixing groove (1-8) and a rear connecting lug plate (1-9), wherein the sliding support plate (1-2) is fixedly connected to the rear end of the front bottom plate (1-1), the sliding support plate (1-2) is slidably connected into the rear bottom plate (1-3), the number of the forward rollers (1-4) is four, two of the forward rollers (1-4) are respectively and rotatably connected to the left side and the right side of the front end of the front bottom plate (1-1), the other two of the forward rollers (1-4) are respectively and fixedly connected to the left side and the right side of the rear end of the rear bottom plate (1-3), the measuring device comprises a front connecting lug plate (1-5), a measuring rod connecting lug plate (1-6), a right-angle limiting plate (1-7), a rear connecting lug plate (1-9), a front bottom plate (1-1), a rear bottom plate (1-3), a measuring rod connecting lug plate (1-6), a right-angle limiting plate (1-7), a measuring rod connecting lug plate (1-6), a measuring angle mechanism fixing groove (1-8) and a rear connecting lug plate (1-9), wherein the front connecting lug plate is fixedly connected to the upper side of the front end of the front bottom plate (1-1);
the linkage measuring mechanism (2) comprises a front connecting plate (2-1), a rear connecting sliding plate (2-2), fixing holes (2-3), a fixed sliding frame (2-4), a front linkage rod (2-5) and a rear linkage rod (2-6), wherein the front connecting plate (2-1) and the rear connecting sliding plate (2-2) are respectively provided with a plurality of fixing holes (2-3), the front connecting plate (2-1) and the rear connecting sliding plate (2-2) are respectively connected with the front end and the rear end of the fixed sliding frame (2-4) in a sliding manner, the front end and the rear end of the fixed sliding frame (2-4) are respectively provided with two fixing holes (2-3), the middle end of the front linkage rod (2-5) is hinged with the front end of the front connecting plate (2-1), the upper end of the rear linkage rod (2-6) is hinged with the rear end of the rear connecting sliding plate (2-2), the lower end of the front linkage rod (2-5) is hinged on the front connecting lug plate (1-5), and the left side of the lower end of the rear linkage rod (2-6) is hinged on the rear connecting lug plate (1-9);
the measuring rod mechanism (3) comprises a measuring rod (3-1), a connecting chute (3-2), a recording pen (3-3) and a bottom plate connecting rod (3-4), the connecting chute (3-2) is arranged at the right end of the measuring rod (3-1), the recording pen (3-3) is fixedly and slidably connected to the left side of the lower end of the measuring rod (3-1), the left end and the right end of the bottom plate connecting rod (3-4) are respectively and rotatably connected to the left side and the right side of the lower end of the measuring rod (3-1), the middle end of the bottom plate connecting rod (3-4) is rotatably connected into a measuring rod connecting lug plate (1-6), and the upper end of a front linkage rod (2-5) is slidably connected into the connecting chute (3-2);
the angle measuring mechanism (4) comprises an angle measuring mechanism fixing plate (4-1), a recording paper background plate (4-2), a recording paper fixing groove (4-3) and an angle gauge (4-4), the recording paper background plate (4-2) is fixedly connected to the front end of the angle measuring mechanism fixing plate (4-1), the recording paper fixing groove (4-3) is arranged on the recording paper background plate (4-2), the angle gauge (4-4) is fixedly connected to the left end of the recording paper background plate (4-2), and the rear end of the angle measuring mechanism fixing plate (4-1) is fixedly connected into the angle measuring mechanism fixing groove (1-8).
2. The building engineering verticality detection device according to claim 1, characterized in that: the bottom plate telescopic mechanism (1) further comprises a pushing frame (1-10), and the pushing frame (1-10) is fixedly connected to the upper side of the rear end of the rear bottom plate (1-3).
3. The building engineering verticality detection device according to claim 1, characterized in that: the linkage measuring mechanism (2) further comprises a driving rotating button (2-7), and the driving rotating button (2-7) is fixedly connected to the right side of the lower end of the rear linkage rod (2-6).
4. The building engineering verticality detection device according to claim 1, characterized in that: the linkage measuring mechanism (2) further comprises two fixing bolts (2-8), the right ends of the two fixing bolts (2-8) are respectively and rotatably connected into the two fixing holes (2-3) in the fixed sliding frame (2-4), and the left ends of the two fixing bolts (2-8) are respectively and rotatably connected into the fixing holes (2-3) in the front connecting plate (2-1) and the rear connecting sliding plate (2-2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920372156.0U CN209978879U (en) | 2019-03-22 | 2019-03-22 | Building engineering straightness detection device that hangs down |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920372156.0U CN209978879U (en) | 2019-03-22 | 2019-03-22 | Building engineering straightness detection device that hangs down |
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| Publication Number | Publication Date |
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| CN209978879U true CN209978879U (en) | 2020-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920372156.0U Expired - Fee Related CN209978879U (en) | 2019-03-22 | 2019-03-22 | Building engineering straightness detection device that hangs down |
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| CN (1) | CN209978879U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113959407A (en) * | 2021-09-28 | 2022-01-21 | 宁波理工建筑设计研究院有限公司 | House stability identification device and identification method |
-
2019
- 2019-03-22 CN CN201920372156.0U patent/CN209978879U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113959407A (en) * | 2021-09-28 | 2022-01-21 | 宁波理工建筑设计研究院有限公司 | House stability identification device and identification method |
| CN113959407B (en) * | 2021-09-28 | 2024-02-23 | 宁波理工建筑设计研究院有限公司 | House stability identification device and identification method |
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