CN113555799A - Power distribution station box fixing device - Google Patents
Power distribution station box fixing device Download PDFInfo
- Publication number
- CN113555799A CN113555799A CN202111002176.7A CN202111002176A CN113555799A CN 113555799 A CN113555799 A CN 113555799A CN 202111002176 A CN202111002176 A CN 202111002176A CN 113555799 A CN113555799 A CN 113555799A
- Authority
- CN
- China
- Prior art keywords
- base
- bolt
- distribution station
- plate
- station box
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000945 filler Substances 0.000 claims description 9
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 230000004888 barrier function Effects 0.000 claims 1
- 239000002585 base Substances 0.000 description 36
- 238000010586 diagram Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910000914 Mn alloy Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/50—Pedestal- or pad-mounted casings; Parts thereof or accessories therefor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/46—Boxes; Parts thereof or accessories therefor
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Patch Boards (AREA)
Abstract
The invention relates to the technical field of distribution equipment and discloses a distribution station box body fixing device which comprises a base, a fastening nut, a bolt and a limiting piece, wherein the base is clamped between the head of the bolt and the fastening nut so as to limit the axial movement of the bolt; a limiting piece is arranged on the base to limit the bolt to rotate relative to the base; when utilizing this distribution station box fixing device fixed distribution station box, only need place the distribution station box and make the pole portion free end of bolt pass the reservation mounting hole that corresponds on the distribution station box on the base after, twist soon lock nut and lock and can realize the quick fixed of distribution station box, solved traditional fixed mode and can't realize carrying out quick fixed problem to the box in distribution station box inside.
Description
Technical Field
The invention relates to the technical field of power distribution equipment, in particular to a power distribution station box body fixing device.
Background
The distribution station is a station for transmitting electricity to electric equipment or users, is the tail end of a power grid, is a radial point, is connected with a transformer substation, and is connected with each electric equipment. The power distribution station is mainly divided into an indoor power distribution station and an outdoor power distribution station. The outdoor power distribution station is a box-type power distribution station, is equipment for arranging high-voltage switch equipment, a distribution transformer and a low-voltage distribution device in a fully-closed and movable steel structure box, is particularly suitable for urban network construction and transformation, and is a brand-new substation rising after a civil substation.
The outdoor power distribution station is mostly arranged in an outdoor area which is not completely developed, the installation environment is more complex, and the box body of the power distribution station is not easy to be fixed from the outside; if fix in the box inside, there is the defect that fixed efficiency is low again.
Disclosure of Invention
The invention aims to provide a distribution station box body fixing device which can realize quick fixing in a box body.
In order to achieve the purpose, the invention adopts the following technical scheme:
a substation box fixture comprising:
a base for supporting a substation box;
tightening the nut;
the bolts correspond to reserved mounting holes in the distribution station box body one by one, free ends of rod parts of the bolts penetrate through the base from bottom to top and are connected with the fastening nuts, the base is clamped between the head of the bolts and the fastening nuts, and the free ends of the rod parts of the bolts penetrate through the bottom wall of the box body and are connected with the locking nuts;
and the limiting piece is used for limiting the bolt to rotate relative to the base.
Preferably, the base is provided with an accommodating groove, and the fastening nut abuts against the inner bottom wall of the accommodating groove and does not protrude out of the opening end face of the accommodating groove.
Preferably, the base includes:
the square tube is provided with a first through hole;
the mounting panel is located the top of side's pipe, the holding tank is located the upper surface of mounting panel, the pole portion of bolt passes deepen behind the first through-hole in the holding tank and be connected in tightly decide the nut.
Preferably, the mounting plate includes:
the upper surface of the flat plate is provided with a slot, and the flat plate is provided with a second through hole penetrating through the bottom wall of the slot and used for penetrating through the bolt;
the base plate is inserted into the slot along the horizontal direction, and a limiting part for limiting the base plate to be separated from the top opening is arranged at the top opening end of the slot;
and a third through hole coaxial with the second through hole is arranged on the base plate, and the fastening nut is arranged in the third through hole and is abutted against the upper surface of the flat plate.
Preferably, the number of the flat plates is two, and the two flat plates are connected through a connecting plate.
Preferably, the surface of the connecting plate is provided with a moisture-proof layer.
Preferably, the lower surface of the base is convexly provided with a pad strip; the lower surface of the filler strip is lower than the end face of the head of the bolt back to the rod part of the bolt.
Preferably, the lower end surface of the base is provided with a limiting piece, the limiting piece is a limiting groove, and the head of the bolt is at least partially inserted into the limiting groove.
Preferably, each bolt is provided with at least two limiting grooves, and the depth of each limiting groove is different.
Preferably, the base further comprises:
the fixing plate is arranged on two opposite sides of the base, and mounting holes for the expansion screws to penetrate through are formed in the fixing plate.
The invention has the beneficial effects that: according to the power distribution station box body fixing device provided by the invention, the base is clamped between the head of the bolt and the fastening nut so as to limit the axial movement of the bolt; a limiting piece is arranged on the base to limit the bolt to rotate relative to the base; when utilizing this distribution station box fixing device fixed distribution station box, being fixed in this distribution station box fixing device ground after, only need place the distribution station box on the base and make the pole portion free end of bolt pass the reservation mounting hole that corresponds on the distribution station box after, twist soon to twist lock nut and lock and can realize the quick fixed of distribution station box, it is fixed that the box that is particularly useful for outdoor distribution station is fixed, has solved traditional fixed mode and can't realize carrying out quick fixed problem to the box inside at the distribution station box.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.
Fig. 1 is a schematic assembly diagram of a distribution substation box and a distribution substation box fixing device provided by an embodiment of the invention;
fig. 2 is a first isometric view of a substation box fixture provided by an embodiment of the present invention;
fig. 3 is a second isometric view of a substation box fixture provided by an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a square tube according to an embodiment of the present invention.
In the figure:
1. tightening the nut; 2. a bolt; 3. a limiting member; 4. a square tube; 5. a flat plate; 6. a base plate; 7. a connecting plate; 8. a filler strip; 9. and (7) fixing the plate.
Detailed Description
In order to make the technical problems solved, the technical solutions adopted and the technical effects achieved by the present invention clearer, the technical solutions of the present invention are further described below by way of specific embodiments with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the elements associated with the present invention are shown in the drawings.
Fig. 1 is an assembly diagram of a distribution station box and a distribution station box fixing device according to an embodiment of the present invention, and as shown in fig. 1, the embodiment provides a distribution station box fixing device, which can quickly fix a distribution station box.
Fig. 2 is a first isometric view of a power distribution station box fixing device provided by an embodiment of the invention, and fig. 3 is a second isometric view of the power distribution station box fixing device provided by the embodiment of the invention, and as shown in fig. 2 and 3, the power distribution station box fixing device comprises a base, a fastening nut 1, a bolt 2 and a limiting piece 3, wherein the base is used for supporting the power distribution station box and preventing the power distribution station box from being corroded due to direct contact with the ground. Bolt 2 and the reservation mounting hole one-to-one on the power distribution station box, the pole portion free end of bolt 2 is passed the base by supreme down and is connected in holding nut 1, makes the base clamp locate between the head of bolt 2 and holding nut 1, and restriction bolt 2 reciprocates, and locating part 3 is used for restricting bolt 2 and rotates for the base.
When the power distribution station box body is fixed, the power distribution station box body fixing device is fixed on the ground, then the power distribution station box body is placed on the base, the free end of the rod portion of the bolt 2 is used for penetrating through the reserved mounting hole in the bottom wall of the box body, and the locking nut is screwed on the bolt 25 in the power distribution station box body to abut against the inner bottom wall of the power distribution station box body.
Because the axial displacement and the rotation of bolt 2 all are restricted, only need to place the power distribution station box on the base and make the pole portion free end of bolt 2 pass corresponding reservation mounting hole after, twist lock nut soon and lock and can realize the quick fixed of power distribution station box. The box fixing device is particularly suitable for fixing the box of an outdoor power distribution station, and overcomes the influence of complex environment on the fixation of the box of the power distribution station.
Furthermore, the base is provided with an accommodating groove, and the fastening nut 1 abuts against the inner bottom wall of the accommodating groove and does not protrude out of the opening end face of the accommodating groove. The setting of holding tank realizes by the upper surface support distribution station box of base, and the stability of distribution station box has been improved to the combined area of increase distribution station box and base.
In order to reduce the processing cost, the base comprises a square pipe 4, the number of the square pipe 4 can be determined according to the distribution of reserved mounting holes on the box body of the power distribution station, in the embodiment, the number of the square pipes 4 is two, and the two square pipes 4 are arranged in parallel at intervals.
Because the wall thickness of square pipe 4 is less, be not convenient for set up the holding tank, the base that this embodiment provided still includes the mounting panel, the top of square pipe 4 is located to the mounting panel, the upper surface of mounting panel is equipped with the holding tank, be equipped with the first through-hole that runs through the holding tank diapire on square pipe 4, the pole portion free end of bolt 2 stretches into in the holding tank after passing first through-hole, and connect in lock nut 1, make lock nut 1 butt in the diapire of holding tank, thereby with mounting panel fixed connection in square pipe 4. The connection mode of square pipe 4 and mounting panel is simple, with low costs, the dismouting and the transportation of square pipe 4 and mounting panel of being convenient for moreover.
Further, the mounting plate comprises a flat plate 5 and a backing plate 6, wherein the flat plate 5 is provided with a second through hole for penetrating the bolt 2, and the upper surface of the flat plate 5 is provided with a slot; the base plate 6 is inserted into the slot along the horizontal direction, and the top opening end of the slot is provided with a limiting part for limiting the base plate 6 to be separated from the top opening. The backing plate 6 is provided with a third through hole coaxial with the second through hole, and the fastening nut 1 is arranged in the third through hole and abutted against the upper surface of the flat plate 5. Specifically, the aperture of the third through hole is larger than that of the second through hole, so that the third through hole is over against the opening end face of the second through hole to form the bottom wall of the accommodating groove.
In this embodiment, the number of the flat plates 5 is equal to that of the square pipes 4, and the two flat plates 5 are connected by the connecting plate 7. The flat plate 5 and the connecting plate 7 can be connected by welding. It should be noted that instead of the two plates 5 and the web 7, a single full plate may be used. The two square pipes 4 are connected together by two flat plates 5 and a connecting plate 7.
Further, in order to effectively resist moisture from the ground, a moisture-proof layer is provided on the surface of the connection plate 7 to protect the distribution station box from moisture.
Furthermore, a filler strip 8 is convexly arranged on the lower surface of the base, and the lower surface of the filler strip 8 is lower than the end surface of the head part of the bolt 2 back to the rod part. The bolt 2 is prevented from contacting the ground by the filler strip 8, and the bolt 2 is protected. Because the filler strip 8 sets up the below direct and ground contact of base, filler strip 8 needs to possess higher hardness and stronger bearing capacity, the preferred high manganese alloy material of filler strip 8 that this embodiment provided.
Further, all set up fixed plate 9 in the relative both sides of base, be equipped with the mounting hole that is used for wearing to establish the inflation screw on the fixed plate 9, can be fixed in ground that the base is more firm through the inflation screw. In this embodiment, one side of each square pipe 4, which is opposite to another square pipe 4, is provided with a fixing plate 9, so that the stability of the base is improved while the installation of the expansion screws is facilitated. When only one square tube 4 is provided, the fixing plates 9 are provided on both opposite sides of the square tube 4.
Further, when above-mentioned distribution substation box fixing device is applied to the open air, in order to deal with complicated changeable climatic environment, above-mentioned base chooses stainless steel to make the base have stronger acid and alkali resistance, higher hardness and stronger corrosion resisting ability.
As shown in fig. 3, in the present embodiment, the limiting member 3 is disposed on the lower end surface of the square tube 4, the limiting member 3 is a limiting groove, and the head of the bolt 2 is at least partially inserted into the limiting groove. Exemplarily, the bolt 2 is a non-universal bolt, the head of the bolt 2 is a cuboid, the limiting groove is a rectangular groove, and the head of the bolt 2 can be inserted into the limiting groove to limit the rotation of the bolt 2.
Further, each bolt 2 is provided with at least two limiting grooves, and the depth of each limiting groove is different. Fig. 4 is a schematic structural diagram of the square tube according to the embodiment of the present invention, as shown in fig. 4, in this embodiment, the number of the limiting grooves is 2, the 2 limiting grooves have different depths and are arranged in a staggered manner, and the limiting grooves with different depths can be selected to limit the bolt 2 according to the different thicknesses of the bottom plate of the distribution substation box, so as to ensure that the free end of the rod portion of the bolt 2 has sufficient thread length to be connected with the lock nut. It should be noted that the limiting groove provided in this embodiment is only one expression of the limiting member 3, and in other embodiments, a groove may be provided on one of the base and the head of the bolt 2, and a boss inserted into the groove may be provided on the other to limit the rotation of the bolt 2.
Adopt above-mentioned distribution station box fixing device to carry out the process of fixing to the distribution station box as follows:
fixing the bolt 2 on the base by using a fastening nut 1;
fixing the base on the ground through expansion screws;
the power distribution station box body is placed on the base, the head of the bolt 2 penetrates through the corresponding reserved mounting hole, a locking nut is sleeved on the bolt 2 in the power distribution station box body and screwed down, and the power distribution station box body is fixed.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Claims (10)
1. A distribution station box fixing device, its characterized in that includes:
a base for supporting a substation box;
a fastening nut (1);
the bolts (2) correspond to reserved mounting holes in the distribution station box body one by one, free ends of rod parts of the bolts (2) penetrate through the base from bottom to top and are connected to the fastening nuts (1), and the base is clamped between the head parts of the bolts (2) and the fastening nuts (1);
and the limiting piece (3) is used for limiting the bolt (2) to rotate relative to the base.
2. The substation box fixing device according to claim 1, wherein the base is provided with a receiving groove, and the fastening nut (1) abuts in an inner bottom wall of the receiving groove and does not protrude out of an opening end face of the receiving groove.
3. The substation cabinet fixture of claim 2, wherein the base comprises:
the square tube (4), the square tube (4) is provided with a first through hole;
the mounting panel is located the top of square pipe (4), the holding tank is located the upper surface of mounting panel, the pole portion of bolt (2) passes stretch into behind the first through-hole in the holding tank and connect in tight set nut (1).
4. The substation cabinet fixture of claim 3, wherein the mounting plate comprises:
the upper surface of the flat plate (5) is provided with a slot, and the flat plate (5) is provided with a second through hole penetrating through the bottom wall of the slot and used for penetrating through the bolt (2);
the base plate (6) is inserted into the slot along the horizontal direction, and a limiting part for limiting the base plate (6) to be separated from the top opening is arranged at the top opening end of the slot;
and a third through hole coaxial with the second through hole is formed in the base plate (6), and the fastening nut (1) is arranged in the third through hole and abutted against the upper surface of the flat plate (5).
5. Substation cabinet fixture according to claim 4, characterized in that said plates (5) are provided in two, said plates (5) being connected by a connection plate (7).
6. Substation cabinet fixture according to claim 5, characterized in that the surface of the connection plate (7) is provided with a moisture barrier.
7. The substation box fixing device according to claim 1, wherein the lower surface of the base is convexly provided with a gasket (8); the lower surface of the filler strip (8) is lower than the end surface of the head part of the bolt (2) back to the rod part.
8. The substation box fixing device according to claim 1, wherein the lower end surface of the base is provided with a limiting member (3), the limiting member (3) is a limiting groove, and the head of the bolt (2) is at least partially inserted into the limiting groove.
9. Substation cabinet fixture according to claim 1, characterized in that at least two stop grooves are associated with each bolt (2), each stop groove having a different depth.
10. The substation cabinet fixture of claim 1, wherein the base further comprises:
the fixing plate (9), the fixing plate (9) are located the relative both sides of base, be equipped with the mounting hole that is used for wearing to establish the inflation screw on fixing plate (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111002176.7A CN113555799A (en) | 2021-08-30 | 2021-08-30 | Power distribution station box fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111002176.7A CN113555799A (en) | 2021-08-30 | 2021-08-30 | Power distribution station box fixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113555799A true CN113555799A (en) | 2021-10-26 |
Family
ID=78134391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111002176.7A Pending CN113555799A (en) | 2021-08-30 | 2021-08-30 | Power distribution station box fixing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113555799A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0739042A (en) * | 1993-07-16 | 1995-02-07 | Yazaki Corp | Mounting sterusture of electric connection box |
| JPH1159688A (en) * | 1997-08-21 | 1999-03-02 | Nissin Electric Co Ltd | Leg body for transfer of heavy box |
| JP2007126925A (en) * | 2005-11-07 | 2007-05-24 | Saruto:Kk | Bridge construction method |
| CN113241634A (en) * | 2021-05-26 | 2021-08-10 | 徐州华通电气科技有限公司 | Outdoor box-type substation capable of being quickly and fixedly installed |
-
2021
- 2021-08-30 CN CN202111002176.7A patent/CN113555799A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0739042A (en) * | 1993-07-16 | 1995-02-07 | Yazaki Corp | Mounting sterusture of electric connection box |
| JPH1159688A (en) * | 1997-08-21 | 1999-03-02 | Nissin Electric Co Ltd | Leg body for transfer of heavy box |
| JP2007126925A (en) * | 2005-11-07 | 2007-05-24 | Saruto:Kk | Bridge construction method |
| CN113241634A (en) * | 2021-05-26 | 2021-08-10 | 徐州华通电气科技有限公司 | Outdoor box-type substation capable of being quickly and fixedly installed |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113555799A (en) | Power distribution station box fixing device | |
| CN216362067U (en) | High-voltage pin type insulator | |
| WO2018030965A1 (en) | A floating structure for solar panel installation | |
| CN210629031U (en) | Limiting device for power cable erection | |
| CN208571257U (en) | A kind of insulation assembly for direct-current switch cabinet | |
| CN214754988U (en) | Electric distribution box bearing structure | |
| CN207265129U (en) | A kind of module bracket for being used to fix battery core | |
| CN110145515A (en) | A kind of secondary fastening electric wire pole anchor ear | |
| CN219451079U (en) | Cold storage insulation board connection structure and nylon bolt | |
| CN218976236U (en) | Triaxial power cable isolating device | |
| CN111711094A (en) | Quick detach formula wind-powered electricity generation beautiful cubical switchboard that becomes | |
| CN214798760U (en) | Anticorrosive cable bridge of assembly structure | |
| CN219998969U (en) | Wire harness structure and weak current security protection construction device | |
| CN220440361U (en) | Lightning protection device for electric power transmission line | |
| CN221202058U (en) | Wall-hanging cable support | |
| CN110797672A (en) | Loss-prevention grounding device of power transmission and transformation equipment and assembling tool and method thereof | |
| CN214204752U (en) | Cable guard plate for high-low voltage electric power construction | |
| CN220797723U (en) | Tightening type line groove connector | |
| CN212840547U (en) | Fastener with adjustable angle | |
| CN216750701U (en) | Moisture-proof ring network switch cabinet | |
| CN217956990U (en) | Wind-resistant solar photovoltaic power generation equipment | |
| CN219513990U (en) | Mounting structure of photovoltaic panel | |
| CN218897071U (en) | Electric wire connector with waterproof structure for electric home | |
| CN215870238U (en) | Environment-friendly gas type ring net cage | |
| CN215419494U (en) | Weight-adjustable counterweight device for tubular bus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |