CN116973608B - Portable electric power measuring equipment - Google Patents
Portable electric power measuring equipment Download PDFInfo
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- CN116973608B CN116973608B CN202311218937.1A CN202311218937A CN116973608B CN 116973608 B CN116973608 B CN 116973608B CN 202311218937 A CN202311218937 A CN 202311218937A CN 116973608 B CN116973608 B CN 116973608B
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- fixedly connected
- wire
- box body
- coil spring
- measuring instrument
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- 238000004804 winding Methods 0.000 claims abstract description 8
- 230000007246 mechanism Effects 0.000 claims abstract description 4
- 238000005259 measurement Methods 0.000 claims description 12
- 239000000428 dust Substances 0.000 claims description 11
- 238000009423 ventilation Methods 0.000 claims description 6
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 230000009471 action Effects 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 244000309464 bull Species 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 6
- 238000001514 detection method Methods 0.000 description 5
- 241000883990 Flabellum Species 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 2
- 210000000080 chela (arthropods) Anatomy 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000008571 general function Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/34—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables
- B65H75/38—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material
- B65H75/44—Constructional details
- B65H75/48—Automatic re-storing devices
- B65H75/486—Arrangements or adaptations of the spring motor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
- G01R1/0416—Connectors, terminals
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/083—Locating faults in cables, transmission lines, or networks according to type of conductors in cables, e.g. underground
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Thermal Sciences (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention discloses portable electric power measuring equipment, which relates to the field of electric power measuring equipment, and comprises a box body, wherein a frame plate is fixedly connected to the center position in the box body close to the lower part, and a measuring instrument body is fixedly connected to the frame plate; winding mechanism sets up in measuring apparatu body left and right sides, including fixed connection at the baffle of frame plate left and right sides, two the perforation has all been seted up to baffle central point put, every all rotate in the perforation and be connected with the bull stick, two the equal fixedly connected with shell of one side that the baffle kept away from each other, the inside coil spring that is equipped with of shell. The coil spring and the ratchet wheel are respectively arranged on the two rotating rods, when the wire stretches outwards, the coil spring is gradually tightened, when the wire is not used, the corresponding position limiting rod is lifted upwards, the ratchet wheel is out of limit, so that the coil spring is reversed to reset, the coil spring is reversed to reset to drive the wire to recover, the winding of the wire is facilitated, and damage caused by the fact that the wire is exposed outside is avoided.
Description
Technical Field
The present invention relates to the field of power measurement devices, and more particularly to a portable power measurement device.
Background
With the development of society and the progress of age, power equipment has taken an indispensable place in people's life, and power measurement and detection instruments take a quite important place.
The traditional electric power measuring instrument is single in general function, can only measure data in a certain aspect of electric power, cannot draw detection data into images to be displayed, and when electric power measurement is carried out, electric power lines are all measured under the condition of power on, so that personal safety of staff is easily threatened.
The Chinese patent with the authorized bulletin number of CN205539282U discloses an electric power measuring instrument, provides a technical scheme, connects a measuring port through an intelligent detecting clamp and a wire, processes data through a micro processor and an oscilloscope, draws the data into an image, then displays the image through a liquid crystal display, enables the intelligent detecting clamp to be automatically connected with the measuring port through the opening of an intelligent starting button when the measuring situation is in emergency danger, senses an abnormal signal when the measuring data is abnormal, emits light and sounds warning sounds, and meanwhile, a fault positioning device determines the specific fault position through fault positioning.
Above-mentioned patent can be through microprocessor, oscilloscope processing data and drawing into the image, can also reduce the degree that the staff received personal safety threat through intelligent detection pincers automatic connection measuring port, but in real life, the power supply line in the home circuit is hidden inside the wall body, only can't be connected with the circuit in the home circuit through intelligent detection pincers to reduce application scope, and do not set up wire storage device, need artifical manual rolling in the follow-up use, cause inconvenience for the work.
For this purpose, a portable power measuring device is proposed.
Disclosure of Invention
The invention aims to provide portable electric power measuring equipment, which solves the problems that the application range is reduced, a wire containing device is not arranged, manual winding is needed in the subsequent use process, and inconvenience is caused to work because the intelligent detection pliers cannot be connected with a circuit in a home circuit.
In order to solve the problems, the invention adopts the following technical scheme.
The portable electric power measurement device comprises a box body, wherein a frame plate is fixedly connected to the center position in the box body close to the lower part, and a measuring instrument body is fixedly connected to the frame plate;
the winding mechanism is arranged at the left side and the right side of the measuring instrument body and comprises baffle plates fixedly connected at the left side and the right side of the frame plate, the center positions of the two baffle plates are provided with perforations, each perforation is internally and rotatably connected with a rotating rod, one side, away from each other, of each baffle plate is fixedly connected with a shell, a coil spring is arranged in the shell, one end of each coil spring is fixedly connected with the annular inner wall of the shell, and the other end of each coil spring is fixedly connected with the annular outer side surface of the rotating rod;
wire holes are formed in the centers of the two inner parts of the rotating rod, wires are inserted into the wire holes respectively, the wires are electrically connected with the measuring instrument body respectively, the upper ends of the wires are connected with plugs on the left side, and wire clamps are connected with the upper ends of the wires on the right side.
Further, the lower ends of the two wires respectively penetrate through wire holes in the rotating rods at corresponding positions to one side of the rotating rods, which is close to the measuring instrument body, and are respectively and fixedly connected with a contact block, and the contact blocks are respectively and fixedly connected with the rotating rods.
Furthermore, jacks for inserting the rotating rods are formed in the left side and the right side of the measuring instrument body, electrode plates are fixedly connected in the jacks respectively, and the electrode plates are electrically connected with the measuring instrument body respectively.
Further, two the bull stick is kept away from each other one end respectively with the box inner wall rotation connection of corresponding position, two bull stick annular lateral surfaces are close to the equal fixed cover of position department of corresponding position box inner wall respectively and are equipped with the ratchet, the equal cover of ratchet lateral surface is equipped with the housing.
Further, a baffle is fixedly connected between the housing and the shell at the position of each rotating rod, and a wire slot for a wire to pass through is formed in the center of the upper end face of the baffle.
Furthermore, the upper ends of the two housings are respectively connected with a limiting rod in a sliding manner, and the annular outer side surface of the limiting rod, which is far away from the housings, is elastically connected with the housings through springs.
Further, the rear side board up end of box articulates there is the case lid, terminal surface central point puts fixedly connected with fixture block under the case lid front side, the draw-in groove that supplies fixture block male is seted up to the preceding curb plate up end central point position of box, the box front side is close to the draw-in groove position and has seted up the screw that runs through draw-in groove and fixture block, screw female connection has the bolt.
Further, two fixing shafts which are symmetrical in front and back are fixedly connected to the left side and the right side of the box body respectively, and the two fixing shafts which are distributed transversely are connected through braces.
Further, five vents have been seted up to the position department level equidistance that the box trailing flank is located between frame plate and the box bottom surface, vent inboard and box trailing side parallel and level position fixedly connected with dust screen, the vent inboard is close to the inside trailing side position fixedly connected with support of box, support central point puts and rotates and be connected with the pivot, the one end fixedly connected with flabellum that the pivot is close to the dust screen.
Further, each rotating shaft is fixedly connected with a belt wheel at one end far away from the dust screen, each belt wheel is connected with each other through belt transmission, a motor is fixedly connected with the center position between the bottom surface in the box body and the frame plate, and the end part of an output shaft of the motor is fixedly connected with the belt wheel at the center position.
Compared with the prior art, the invention has the beneficial effects that:
1. this scheme can switch on the measuring apparatu body through the upper end connecting plug at left side wire in inserting the socket of home line with the plug to conveniently detect the electric power parameter of home circuit, and through set up a wind spring and a ratchet respectively on two bull sticks, when the wire outwards stretches, the wind spring tightens up gradually, when the wire is not used, upwards lifts the gag lever post in corresponding position, the ratchet loses spacingly, thereby make the wind spring reverse reset, the wind spring reverse reset then drives the wire and retrieves, thereby the rolling of wire has been made things convenient for, avoid the wire to expose and cause the damage.
2. According to the scheme, the motor is electrically connected with the measuring instrument body, so that the motor can be electrified to operate in the process of measuring the circuit power parameters of the measuring instrument body, the five fan blades are driven to rotate, the measuring instrument body is ventilated and radiated, and the measuring instrument body is prevented from being damaged by overhigh temperature in the measuring process.
Drawings
FIG. 1 is a front perspective view of the overall structure of the present invention;
FIG. 2 is a rear bottom perspective view of the overall structure of the present invention;
FIG. 3 is an expanded view of the overall structure of the present invention;
FIG. 4 is a schematic illustration in semi-section of FIG. 3 of the present invention;
FIG. 5 is a schematic illustration in semi-section of FIG. 2 of the present invention;
FIG. 6 is an exploded view of FIG. 4 in accordance with the present invention;
FIG. 7 is an enlarged schematic view of the invention at A in FIG. 6;
fig. 8 is an enlarged schematic view of the invention at B in fig. 5.
The reference numerals in the figures illustrate:
1. a case; 11. a meter body; 12. a case cover; 13. a clamping block; 14. a screw hole; 15. a clamping groove; 16. a bolt; 17. a fixed shaft; 18. a harness; 19. a frame plate; 2. a partition plate; 21. perforating; 22. a baffle; 23. a wire slot; 3. a rotating rod; 31. a wire hole; 32. a wire; 33. a touch block; 34. an electrode sheet; 35. a jack; 36. a coil spring; 37. a housing; 38. a plug; 39. a wire clamp; 4. a ratchet wheel; 41. a housing; 42. a limit rod; 5. a motor; 51. a vent; 52. a fan blade; 53. a bracket; 54. a rotating shaft; 55. a belt wheel.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present invention are within the protection scope of the present invention.
Referring to fig. 3 to 7, a portable electric power measurement device includes a case 1, wherein a frame plate 19 is fixedly connected to the center position inside the case 1 near the lower side, and a measuring instrument body 11 is fixedly connected to the frame plate 19; the winding mechanism is arranged at the left side and the right side of the measuring instrument body 11 and comprises baffle plates 2 fixedly connected at the left side and the right side of a frame plate 19, through holes 21 are formed in the center positions of the two baffle plates 2, a rotating rod 3 is rotatably connected in each through hole 21, a shell 37 is fixedly connected to one side, away from each other, of each baffle plate 2, a coil spring 36 is arranged in the shell 37, one end of each coil spring 36 is fixedly connected with the annular inner wall of the shell 37, and the other end of each coil spring 36 is fixedly connected with the annular outer side surface of the rotating rod 3; wire holes 31 are formed in the centers of the two rotating rods 3, wires 32 are inserted into the wire holes 31 respectively, a plug 38 is connected to the upper end of each wire 32, a wire clamp 39 is connected to the upper end of each wire 32 on the right, the lower ends of the wires 32 respectively penetrate through the wire holes 31 in the rotating rods 3 at corresponding positions to one side, close to the measuring instrument body 11, of each rotating rod 3, respectively and fixedly connected with a contact block 33, the contact blocks 33 are respectively and fixedly connected with the rotating rods 3, insertion holes 35 for inserting the rotating rods 3 are formed in the left side and the right side of the measuring instrument body 11, electrode plates 34 are respectively and fixedly connected with the measuring instrument body 11, one ends, far away from each other, of the rotating rods 3 are respectively and rotatably connected with the inner wall of the box body 1 at corresponding positions, ratchet wheel 4 is fixedly sleeved on the annular outer side surfaces of the two rotating rods 3, a cover 41 is respectively, a baffle 22 is fixedly connected between the cover 41 and the outer shell 37 at the position of each rotating rod 3, an electrode plate 34 is respectively, an electrode plate 34 is fixedly connected with the outer side surface of the cover 41, and the wire clamp 41 is connected with the outer side surfaces of the wire clamp 41 through the elastic plug 42.
By adopting the technical scheme, when the measuring instrument body 11 is not in use, the left wire 32 is wound on the left rotating rod 3 in a anticlockwise manner, the right wire 32 is wound on the right rotating rod 3 in a clockwise manner, the coil springs 36 on each rotating rod 3 are in a loose state, the left coil springs 36 are in a clockwise winding state, the right coil springs 36 are in a anticlockwise winding state, the plugs 38 and the wire clamps 39 are respectively positioned on the upper end surfaces of the baffle plates 22 where the respective wires 32 are positioned, when the electric parameters of a household line are required to be measured, the plugs 38 can be pulled upwards, so that the left wire 32 is driven to rotate anticlockwise and gradually extend upwards through the wire grooves 23 on the left baffle plates 22, and then the left rotating rod 3 is driven to rotate anticlockwise, the left coil springs 36 are gradually tightened in a anticlockwise manner due to the clockwise orientation of the ratchet teeth on the left ratchet wheel 4, and the lower ends of the limiting rods 42 are in a hemispherical structure, the rotating rod 3 drives the left ratchet wheel 4 to rotate anticlockwise, so that the ratchet wheel 4 can not be blocked by the limiting rod 42, when the left wire 32 reaches the required length, the pulling is stopped, at the moment, the coil spring 36 has a tendency of rotating and resetting clockwise, however, under the effect of the limiting rod 42, the ratchet wheel 4 cannot rotate clockwise, so that the wire 32 can stop at any position, the right end of the left rotating rod 3 is inserted into the jack 35 on the left side of the measuring instrument body 11 and is in rotary connection with the jack 35, the contact block 33 on the left wire 32 is in contact with the electrode plate 34 in the jack 35 on the left side, the contact block 33 on the left wire 32 is always in contact with the electrode plate 34 in the jack 35 in the rotation process of the left rotating rod 3, then the plug 38 is inserted into the socket of a household circuit, the measuring instrument body 11 can be connected, and similarly, when the power parameter of an external power supply wire needs to be measured, the wire clamp 39 can be pulled upwards, the right wire 32 can be stopped at any position in the cooperation of the right coil spring 36, the right ratchet wheel 4 and the right limiting rod 42, then the wire clamp 39 is clamped on a power supply wire to be connected with the measuring instrument body 11, a measuring result can be displayed through a display screen on the upper end face of the measuring instrument body 11, after the measurement is finished, only the left limiting rod 42 or the right limiting rod 42 is lifted upwards, the left ratchet wheel 4 loses the limit of the left limiting rod 42, the right ratchet wheel 4 loses the limit of the right limiting rod 42, the left coil spring 36 rotates clockwise to reset, the right coil spring 36 rotates anticlockwise to reset, the left coil spring 36 is driven to rotate clockwise in the clockwise process to wind the left wire 32 into the box body 1, the right coil spring 36 is driven to rotate anticlockwise to wind the right wire 32 into the box body 1, therefore the arrangement of the wire 32 is facilitated, the wire 32 can be prevented from being exposed to the outside under the protection effect of the box body 1, and meanwhile, the measuring instrument body can be protected from being damaged by knotting.
As shown in fig. 1-3, the upper end surface of the rear side plate of the box body 1 is hinged with a box cover 12, a clamping block 13 is fixedly connected to the central position of the lower end surface of the front side of the box cover 12, a clamping groove 15 for inserting the clamping block 13 is formed in the central position of the upper end surface of the front side plate of the box body 1, a screw hole 14 penetrating through the clamping groove 15 and the clamping block 13 is formed in the position, close to the clamping groove 15, of the front side surface of the box body 1, bolts 16 are connected in the screw hole 14 in a threaded manner, two front-back symmetrical fixing shafts 17 are fixedly connected to the left side and the right side of the box body 1 respectively, and the two transversely distributed fixing shafts 17 are connected through braces 18.
Through adopting above-mentioned technical scheme, the measuring apparatu body 11 is when not using, can close case lid 12 in order to make fixture block 13 on the case lid 12 insert the draw-in groove 15 on the box 1, follow in with bolt 16 screw in screw 14, thereby with case lid 12 and box 1 are fixed, avoid the foreign object touching measuring apparatu body 11 and cause the damage of measuring apparatu body 11, when needing to carry measuring apparatu body 11 to go out, the whole box 1 back of the body is carried to the back with two braces 18, the both ends of braces 18 are rotated with the fixed axle 17 of corresponding position respectively and are connected, also can rotate two braces 18 to case lid 12 top respectively, thereby carry measuring apparatu body 11 through portable mode, the carrying of measuring apparatu body 11 has been made things convenient for.
As shown in fig. 2, fig. 5 and fig. 8, five ventilation openings 51 are horizontally and equidistantly formed in the position, between the frame plate 19 and the inner bottom surface of the box 1, of the rear side surface of the box 1, a dust screen is fixedly connected to the inner side of the ventilation openings 51 at the same level as the rear side surface of the box 1, a support 53 is fixedly connected to the inner side of the ventilation openings 51 near the rear side surface of the inner side of the box 1, a rotating shaft 54 is rotatably connected to the central position of the support 53, one end, near the dust screen, of the rotating shaft 54 is fixedly connected with a fan blade 52, one end, far away from the dust screen, of each rotating shaft 54 is fixedly connected with a belt wheel 55, each belt wheel 55 is connected with each belt wheel 55 through a belt, a motor 5 is fixedly connected to the central position between the inner bottom surface of the box 1 and the frame plate 19, and the end of an output shaft of the motor 5 is fixedly connected with the belt wheel 55 at the central position.
Through adopting above-mentioned technical scheme, with motor 5 and measuring apparatu body 11 electric connection for measuring apparatu body 11 when measuring the electric parameter of family's circuit or the electric parameter of outside power supply line, all can start motor 5, because measuring apparatu body 11 can generate heat at measuring the electric parameter in-process of circuit, consequently, accessible motor 5 drives five band pulley 55 synchronous revolution, thereby drive the flabellum 52 synchronous revolution in the five vent 51, thereby ventilate inside box 1, because evenly set up the bleeder vent on the frame plate 19, and then can ventilate heat dissipation to measuring apparatu body 11, guarantee that measuring apparatu body 11 can stable work at measuring the in-process of circuit electric parameter, the dust screen that sets up in the vent 51 can prevent that the dust from falling into inside box 1.
The using method comprises the following steps: when the bolt 16 in the screw hole 14 is screwed out, the box cover 12 is lifted upwards, when the electric power parameter of a household line needs to be measured, the plug 38 can be pulled upwards, so that the left wire 32 is driven to rotate anticlockwise and gradually extend upwards through the wire groove 23 on the left baffle 22, the left rotating rod 3 is driven to rotate anticlockwise, the left coil spring 36 is enabled to rotate anticlockwise and gradually tighten, the ratchet wheel 4 is not blocked by the limiting rod 42 when the rotating rod 3 drives the left ratchet wheel 4 to rotate anticlockwise, when the left wire 32 reaches the required length, pulling is stopped, at the moment, the coil spring 36 has a tendency of rotating clockwise to reset, however, under the action of the limiting rod 42, the ratchet wheel 4 cannot rotate clockwise, so that the wire 32 can be stopped at any position, then the plug 38 is inserted into a socket of the household line, the measuring instrument body 11 can be connected, similarly, when the electric power parameter of an external power supply line needs to be measured, the right wire 32 can be stopped at any position, and then the wire clamp 39 can be clamped on the wire, namely the measuring instrument body 11 can be powered by the measuring screen through the measuring end face.
The above description is only of the preferred embodiments of the present invention; the scope of the invention is not limited in this respect. Any person skilled in the art, within the technical scope of the present disclosure, may apply to the present invention, and the technical solution and the improvement thereof are all covered by the protection scope of the present invention.
Claims (5)
1. A portable power measurement device, characterized by: the device comprises a box body (1), wherein a frame plate (19) is fixedly connected to the inner center position of the box body (1) close to the lower part, and a measuring instrument body (11) is fixedly connected to the frame plate (19);
the winding mechanism is arranged at the left side and the right side of the measuring instrument body (11) and comprises baffle plates (2) fixedly connected to the left side and the right side of a frame plate (19), through holes (21) are formed in the central positions of the two baffle plates (2), a rotating rod (3) is rotatably connected in each through hole (21), a shell (37) is fixedly connected to one side, away from each other, of each baffle plate (2), a coil spring (36) is arranged in the shell (37), one end of each coil spring (36) is fixedly connected with the annular inner wall of the shell (37), and the other end of each coil spring (36) is fixedly connected with the annular outer side surface of the rotating rod (3);
wire holes (31) are formed in the inner centers of the two rotating rods (3), wires (32) are inserted into the two wire holes (31) respectively, the two wires (32) are electrically connected with the measuring instrument body (11) respectively, a plug (38) is connected to the upper end of the wire (32) on the left side, and a wire clamp (39) is connected to the upper end of the wire (32) on the right side;
the lower ends of the two leads (32) respectively penetrate through the wire holes (31) in the rotating rod (3) at the corresponding positions to one side of the rotating rod (3) close to the measuring instrument body (11) and are respectively and fixedly connected with a contact block (33), and the contact blocks (33) are respectively and fixedly connected with the rotating rod (3);
the measuring instrument comprises a measuring instrument body (11), wherein insertion holes (35) for inserting a rotating rod (3) are formed in the left side and the right side of the measuring instrument body, electrode plates (34) are fixedly connected to the insertion holes (35) respectively, and the electrode plates (34) are electrically connected with the measuring instrument body (11) respectively;
one ends of the two rotating rods (3) which are far away from each other are respectively connected with the inner wall of the box body (1) at the corresponding position in a rotating way, ratchet wheels (4) are fixedly sleeved at the positions, close to the inner wall of the box body (1) at the corresponding positions, of the annular outer side surfaces of the two rotating rods (3), and the outer side surfaces of the ratchet wheels (4) are covered with a housing (41);
a baffle plate (22) is fixedly connected between a housing (41) and a shell (37) at the position of each rotating rod (3), and a wire slot (23) for a wire (32) to pass through is formed in the central position of the upper end surface of the baffle plate (22);
the upper ends of the two housings (41) are respectively connected with a limiting rod (42) in a sliding manner, and the annular outer side surfaces of the limiting rods (42) far away from the housings (41) are elastically connected with the housings (41) through springs;
when the electric power parameter of the household line needs to be measured, the plug (38) is pulled upwards, thereby the left wire (32) is driven to rotate anticlockwise and gradually extend upwards through the wire groove (23) on the left baffle plate (22), and then the left rotary rod (3) is driven to rotate anticlockwise, so that the left coil spring (36) rotates anticlockwise and gradually tightens up, the rotary rod (3) drives the left ratchet wheel (4) to rotate anticlockwise, the ratchet wheel (4) is not blocked by the limiting rod (42), after the left wire (32) reaches the required length, pulling is stopped, at this time, the coil spring (36) has a tendency of rotating clockwise to reset, however, under the action of the limiting rod (42), the ratchet wheel (4) cannot rotate clockwise, so that the wire (32) can stop at any position, then the plug (38) is inserted into a socket of the household line, the measuring instrument body (11) can be connected, and similarly, when the electric power parameter of the external power line needs to be measured, the wire clamp (39) is pulled upwards, the right wire (32) can also be clamped at any position of the right coil spring (36) and the right ratchet wheel (4) and the right limiting rod (42) to be clamped on the measuring instrument body through the measuring screen (11).
2. A portable power measurement device according to claim 1, characterized in that: the novel box is characterized in that a box cover (12) is hinged to the upper end face of the rear side plate of the box body (1), a clamping block (13) is fixedly connected to the center position of the lower end face of the front side of the box cover (12), a clamping groove (15) for the clamping block (13) to be inserted into is formed in the center position of the upper end face of the front side plate of the box body (1), a screw hole (14) penetrating through the clamping groove (15) and the clamping block (13) is formed in the position, close to the clamping groove (15), of the front side face of the box body (1), and a bolt (16) is connected to the inner thread of the screw hole (14).
3. A portable power measurement device according to claim 1, characterized in that: two fixing shafts (17) which are symmetrical in front and back are fixedly connected to the left side and the right side of the box body (1), and the two fixing shafts (17) which are transversely distributed are connected through braces (18).
4. A portable power measurement device according to claim 1, characterized in that: five ventilation openings (51) are horizontally arranged at equal intervals at positions between the frame plate (19) and the inner bottom surface of the box body (1) on the rear side surface of the box body (1), dust screens are fixedly connected to the inner sides of the ventilation openings (51) and the rear side of the box body (1) at the same level, a support (53) is fixedly connected to the inner sides of the ventilation openings (51) close to the inner rear side surface of the box body (1), a rotating shaft (54) is rotatably connected to the central position of the support (53), and fan blades (52) are fixedly connected to one ends of the rotating shaft (54) close to the dust screens.
5. A portable power measurement device according to claim 4, wherein: one end of each rotating shaft (54) far away from the dust screen is fixedly connected with a belt wheel (55), each belt wheel (55) is connected through belt transmission, a motor (5) is fixedly connected to the central position between the inner bottom surface of the box body (1) and the frame plate (19), and the end part of an output shaft of the motor (5) is fixedly connected with the belt wheel (55) at the central position.
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| CN202311218937.1A CN116973608B (en) | 2023-09-21 | 2023-09-21 | Portable electric power measuring equipment |
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| CN117890191B (en) * | 2024-01-19 | 2024-06-18 | 长沙荷花建设工程质量检测有限责任公司 | Stretching and holding structure and construction engineering detection equipment using same |
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| CN116973608A (en) | 2023-10-31 |
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