CN115047225B - Hand-held type three-phase electric energy meter - Google Patents
Hand-held type three-phase electric energy meter Download PDFInfo
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- CN115047225B CN115047225B CN202210963005.9A CN202210963005A CN115047225B CN 115047225 B CN115047225 B CN 115047225B CN 202210963005 A CN202210963005 A CN 202210963005A CN 115047225 B CN115047225 B CN 115047225B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
- G01R11/02—Constructional details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
- G01R11/02—Constructional details
- G01R11/04—Housings; Supporting racks; Arrangements of terminals
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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Abstract
The invention discloses a handheld three-phase electric energy meter, which comprises a top cover and a bottom cover clamped at the bottom of the top cover, wherein a measuring assembly is arranged between the top cover and the bottom cover, a through groove for a key to penetrate out is formed in the top cover, a sinking groove is formed in the through groove, a sealing assembly for sealing a gap between the inner wall of the through groove and the key is arranged in the sinking groove, the sealing assembly comprises a sealing strip fixedly arranged at the through groove, and the sealing strip is arranged in an annular shape and is arranged on the outer side of the key; an exhaust assembly is arranged between the bottom cover and the top cover, and an adjusting assembly is arranged in the top cover; inside introducing the sealing band with gaseous through adjusting part, can strut the sealing band under atmospheric pressure effect, and then make the sealing band increase in volume and extend towards the button direction and contact with the button, when the outside periphery of sealing band and button contacted, can seal the gap between logical inslot wall and the button to avoid outside dust to enter into inside the equipment.
Description
Technical Field
The invention relates to the technical field of power equipment, in particular to a handheld three-phase electric energy meter.
Background
Along with the continuous development of national economy, the increase of electric energy demand, electric power customer progressively increases, and electric energy meter's demand also increases thereupon, and electric energy meter generally adopts in the terminal board of wire disect insertion strapping table, by the tight can of terminal line screw top.
The Chinese invention patent CN207541118U discloses an electronic electric energy meter, which comprises an electric energy meter main body, a plurality of mounting screw hole seats, an electronic screen embedding hole, an electronic screen, an indicator light, a key panel, a transmission antenna, a pair of turnover connecting shafts, a pair of meter side protective plates, a pair of solar cell panels, a placing base, a movable rear cover and a connecting port panel; mounting screw seat, pilot lamp and keypad, transmission antenna establishes in the electric energy meter main part, the electronic type screen passes through electronic screen and inlays the dress hole and establish in the electric energy meter main part, meter side protection board is through the even electric energy meter main part of upset axle, solar cell panel installs on meter side protection board, place the base and establish in electric energy meter main part bottom, the activity back lid adaptation inlays the dress at the opening part of electric energy meter main part, the connection port panel inlays the dress and covers after the activity. This scheme safety in utilization is high, can adopt the solar energy power supply, and energy-concerving and environment-protective, small, the installation flexibility is high.
Above-mentioned equipment is when using, because need operate the button on the keypad, consequently need set up the logical groove that supplies the button to wear out on the keypad, and the diameter that leads to the groove often needs to be greater than the external diameter of button, thereby avoid producing the friction between button and the keypad, so that can easily press the button downwards, but a problem therewith is, when the diameter that leads to the groove is greater than the external diameter of button, outside dust can enter into inside the equipment through the inner wall that leads to the groove and button when using, thereby cause the influence to relevant electronic components, the life of reduction equipment.
Therefore, there is a need to provide a handheld three-phase electric energy meter to solve the above technical problems.
Disclosure of Invention
The invention aims to provide a handheld three-phase electric energy meter, which aims to solve the problems that when the existing equipment provided in the background art is used, because keys on a key board need to be operated, a through groove for the keys to penetrate out needs to be formed in the key board, and the diameter of the through groove needs to be larger than the outer diameter of the keys, so that friction between the keys and the key board is avoided, and the keys can be easily pressed downwards.
Based on the above thought, the invention provides the following technical scheme: the measuring device comprises a top cover and a bottom cover clamped at the bottom of the top cover, wherein a measuring assembly is arranged between the top cover and the bottom cover, a through groove for the key to penetrate out is formed in the top cover, a sinking groove is formed in the through groove, a sealing assembly for sealing a gap between the inner wall of the through groove and the key is arranged in the sinking groove, the sealing assembly comprises a sealing strip fixedly arranged at the through groove, and the sealing strip is arranged in an annular shape and is arranged on the outer side of the key;
an exhaust assembly is arranged between the bottom cover and the top cover, an adjusting assembly is arranged in the top cover, gas generated by the exhaust assembly is exhausted from the sink groove, and the adjusting assembly guides the gas generated by the exhaust assembly into the sealing belt to expand so as to be contacted with the outer circumferential surface of the key;
the sealing strip is arranged in the sinking groove, the outer circumferential surface of the sealing strip is fixedly connected with the inner side wall of the sinking groove, and the inner circumferential surface of the sealing strip is in a free state;
the exhaust assembly comprises a fixed plate fixedly connected inside a bottom cover, the fixed plate is arranged at the bottom of a boss, a sealing cavity is formed among the fixed plate, the boss and the bottom cover, a sliding plate is connected inside the sealing cavity in a sliding mode, the sliding plate is arranged on one side, close to the boss, of the fixed plate, a screw rod is arranged on one side, close to the sliding plate, of the fixed plate, one end of the screw rod is rotatably connected with the fixed plate, the other end of the screw rod penetrates through the sliding plate and the bottom cover and extends to the outer side of the bottom cover, the screw rod is in threaded connection with the sliding plate, the bottom end of an air inlet groove is arranged on one side of the fixed plate and is communicated with the sealing cavity, a fixing ring is sleeved on the outer side of the screw rod, a clockwork spring is arranged in the fixing ring and is sleeved on the outer side of the screw rod, the clockwork spring is arranged on one side, far away from the fixed plate, and two free ends of the clockwork spring are respectively connected with the inner wall of the fixing ring and the outer wall of the screw rod;
the adjusting part sets up in the inside regulating plate of spout including sliding, the regulating plate sets up to the U-shaped, the second water conservancy diversion hole that link up is seted up to regulating plate one side, the first water conservancy diversion hole that link up is seted up to the regulating plate opposite side, fixedly connected with second sealing rod on the inside one end terminal surface that is close to second water conservancy diversion hole of spout, the inside one end terminal surface that is close to first water conservancy diversion hole of spout goes up the first sealing rod of fixedly connected with, the outside cover of first sealing rod is equipped with the spring, the spring sets up between regulating plate and spout one end terminal surface, and is provided with the stay cord in one side that the regulating plate is close to the spring, the one end and the regulating plate fixed connection of stay cord, the other end of stay cord penetrates the boss and inside after extending towards the direction of keeping away from the clockwork spring wear out the boss and with slide fixed connection.
As a further scheme of the invention: the bottom cover side fixedly connected with intake pipe, the intake pipe is linked together with sealed cavity, and is provided with the check valve that supplies outside gas to enter into sealed cavity inside unidirectionally in the intake pipe.
As a further scheme of the invention: the first diversion trench is L-shaped, one end of the first diversion trench is communicated with a through hole formed in the pipe wall of the connecting pipe, and the other end of the first diversion trench is communicated with the sliding groove.
As a further scheme of the invention: one section of the screw rod connected with the bottom cover is a polished rod, the polished rod section on the screw rod is rotationally connected with the bottom cover, and one end of the screw rod extending to the outer side of the bottom cover is fixedly connected with a knob.
As a further scheme of the invention: the diameter of the through groove is larger than the outer diameter of the key.
As a further scheme of the invention: the top and the bottom of the sliding plate are respectively contacted with the boss and the bottom surface of the bottom cover, and the front side and the rear side of the sliding plate are contacted with the inner wall of the bottom cover.
Compared with the prior art, the invention has the beneficial effects that: pressure is generated through the exhaust assembly, and then gas is discharged towards the direction of the key through the exhaust groove, the sealing strip is blown upwards under the acting force of the gas flow and is gradually separated from the contact with the key, the gas flow can pass through the key and the sealing strip, on one hand, dust can be prevented from entering between the top cover and the bottom cover through the gas flow flowing upwards, and then related electronic devices are protected, on the other hand, the sealing strip is separated from the key, so that the key can be more conveniently driven to move downwards, at the last stage of exhaust of the exhaust assembly, the gas is introduced into the sealing strip through the adjusting assembly, the sealing strip can be opened under the action of the gas pressure, the volume of the sealing strip is increased, the sealing strip extends towards the key direction and is contacted with the key, when the sealing strip is contacted with the outer circumferential surface of the key, gaps between the inner wall of the through groove and the key can be sealed, and therefore, the external dust is prevented from entering into the equipment.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a cross-sectional view of the top and bottom covers of the present invention;
FIG. 3 is an enlarged schematic view of FIG. 2 at A according to the present invention;
FIG. 4 is an enlarged view of the structure of FIG. 2B of the present invention;
fig. 5 is a schematic view of the distribution structure of the sealing tape of the present invention;
FIG. 6 is a schematic view of the sealing band, vent groove and sink groove configuration of the present invention;
FIG. 7 is a schematic view of an adjustment plate according to the present invention;
FIG. 8 is a schematic view of the top cover structure of the present invention;
FIG. 9 is a schematic view of the configuration of the regulating plate of the present invention in contact with the first and second sealing rods;
FIG. 10 is a schematic view of the regulating plate of the present invention shown separated from the first sealing rod;
fig. 11 is a schematic view of the second sealing rod of the present invention sealing the first diversion hole.
In the figure: 1. a top cover; 2. a spring; 3. a first seal bar; 4. a chute; 5. a first diversion trench; 6. an adjusting plate; 7. a second guiding gutter; 8. a second seal bar; 9. a connecting pipe; 10. connecting grooves; 11. an exhaust groove; 12. sinking a groove; 13. sealing tape; 14. an air inlet groove; 15. a fixing plate; 16. a screw; 17. a slide plate; 18. a clockwork spring; 19. a knob; 20. a bottom cover; 21. pulling a rope; 22. a boss; 23. a through groove; 24. an air inlet pipe; 25. a second flow guide hole; 26. the first water conservancy diversion hole.
Detailed Description
As shown in fig. 1-6 and 8, a handheld three-phase electric energy meter comprises a top cover 1 and a bottom cover 20 clamped at the bottom of the top cover 1, wherein the top cover 1 and the bottom cover 20 are fixed in a screw or pin connection manner in the actual use process, a related measuring component for measuring electric energy is arranged between the bottom cover 20 and the top cover 1, and the measuring component mainly comprises an induction type measuring mechanism for converting an electric energy signal into the number of revolutions of a turntable; a photoelectric converter for converting the revolution of the turntable proportional to the electric energy into electric pulses; a frequency divider and a counter for dividing and counting the pulse signal converted by the photoelectric converter to obtain the measured electric energy; and a display screen for displaying the measurement result, wherein the related electrical elements are all structures commonly used in the electromechanical field, and other related structures for measuring the electric energy by the electric energy meter are also technical means commonly used in the electromechanical field, which are not described herein again.
Offer the logical groove 23 that supplies the button to wear out on the top on top cover 1 near the position of bottom, and top cover 1's top is close to the top position and offers the notch that supplies the display screen installation, in addition, still is provided with the rectangular channel that supplies relevant joint installation in top cover 1's both sides.
The logical groove 23 that supplies the button to wear out when seting up in the in-service use process, the diameter that leads to groove 23 often needs to be greater than the external diameter of button, thereby avoid producing the friction between button and top cap 1, so that can easily press down the button, but a problem therewith is, when the diameter that leads to groove 23 is greater than the external diameter of button, outside dust can enter into between top cap 1 and the bottom 20 through leading to between the inner wall of groove 23 and the button in the use, thereby cause the influence to relevant electronic components, reduce the life of equipment, therefore, this scheme is provided with seal assembly in leading to groove 23 department so that seal the gap between leading to groove 23 inner wall and the button.
The sealing assembly comprises a sealing strip 13 arranged at a through groove 23, the sealing strip 13 is arranged in a ring shape and is arranged on the outer side of the press key, specifically, a sinking groove 12 is arranged at the through groove 23, the sealing strip 13 is arranged in the sinking groove 12, the outer circumferential surface of the sealing strip 13 is fixedly connected with the inner side wall of the sinking groove 12, and the inner circumferential surface of the sealing strip 13 is in a free state.
Furthermore, the top cover 1 is provided with an annular exhaust groove 11 at the bottom end of the sink groove 12, and the diameter of the top ring opening of the exhaust groove 11 is smaller than that of the bottom end thereof, so that the cross section of the exhaust groove 11 is in a state of inclining towards the key, at this time, gas discharged through the exhaust groove 11 can pass through the sealing strip 13 and the key, dust can be prevented from entering between the bottom cover 20 and the top cover 1 by the upward flowing gas flow in the use process, the number of the sealing strips 13 and the exhaust grooves 11 is multiple, the connecting pipe 9 is communicated between two adjacent sealing strips 13 and is arranged inside the top cover 1, the connecting pipe 9 can be made of hard plastic or soft rubber pipe, the connecting groove 10 is provided between two adjacent rows of the exhaust grooves 11 on the top cover 1 and is respectively communicated with the exhaust grooves 11 at the two ends thereof, the sealing strips 13 can be made of plastic or rubber into a film shape, the interior of the connecting pipe is provided with a cavity, and the two adjacent sealing strips 13 can be communicated with each other through the connecting pipe 9 to exchange gas.
Furthermore, a boss 22 is disposed at the bottom end of the top cover 1, a sliding groove 4 is disposed in the boss 22 along the length direction of the boss, a first diversion trench 5 is disposed between the connecting pipe 9 and the sliding groove 4 in a communicating manner, specifically, the first diversion trench 5 is L-shaped, one end of the first diversion trench is communicated with a through hole disposed on the pipe wall of the connecting pipe 9, the other end of the first diversion trench is communicated with the sliding groove 4, a second diversion trench 7 is disposed between the connecting groove 10 and the sliding groove 4 in a communicating manner, the bottom surface of the second diversion trench 7 is flush with the bottom surface of the sliding groove 4, the second diversion trench 7 is disposed on one side of the first diversion trench 5 close to the key, an air inlet groove 14 is disposed at the bottom end of the second diversion trench 7 in a communicating manner, the first diversion trench 5, the second diversion trench 7, the sliding groove 4 and the air inlet groove 14 are communicated with each other through the above structure, an exhaust assembly is disposed between the bottom cover 20 and the boss 22, and an adjusting assembly is disposed inside of the sliding groove 4.
In the practical use process, pressure is generated by the exhaust assembly, and then gas is extruded into the sliding groove 4 through the air inlet groove 14, at the moment, the adjusting assembly seals one end of the first diversion groove 5 connected with the sliding groove 4, so that the gas can only enter the connecting groove 10 and the exhaust groove 11 through the first diversion groove 5, and then is discharged towards the direction of the key through the exhaust groove 11, the sealing strip 13 is blown upwards under the action of the airflow to be gradually separated from the key, the airflow can pass through the sealing strip 13, on one hand, dust can be prevented from entering between the top cover 1 and the bottom cover 20 through the airflow flowing upwards, and further relevant electronic devices are protected, on the other hand, the sealing strip 13 is separated from the key, so that the key can be more conveniently driven to move downwards, and at the final stage of exhaust of the exhaust assembly, the adjusting component seals one end of the second diversion trench 7 connected with the sliding chute 4, and the end of the first diversion trench 5 connected with the sliding chute 4 is opened, at the moment, the residual gas enters the sliding chute 4 through the air inlet groove 14 and then flows into the connecting pipe 9 and the sealing belt 13 through the first diversion trench 5, the sealing belt 13 can be opened under the action of air pressure, the sealing belt 13 is enlarged in volume and extends towards the direction of the keys to be contacted with the keys, when the sealing belt 13 is contacted with the outer circumferential surface of the keys, the gap between the inner wall of the through groove 23 and the keys can be sealed, so that the external dust is prevented from entering the equipment, in the actual measurement process, the service time of the keys is short, therefore, when the key is used, the gas is exhausted through the exhaust groove 11 through the exhaust component, the dust is prevented from entering the equipment, and when the keys are not used, the gas generated by the back stroke of the exhaust assembly is guided into the sealing belt 13 through the adjusting assembly so as to seal the through groove 23 and the key, and at the moment, even if the electric energy meter is not used, external dust can be prevented from entering the equipment.
As shown in fig. 1 to 5, the exhaust assembly includes a fixing plate 15 fixedly connected to the inside of a bottom cover 20, the fixing plate 15 is disposed at the bottom of a boss 22, when a top cover 1 is closed on the top of the bottom cover 20, the boss 22 is disposed above the fixing plate 15 and contacts with the top surface of the fixing plate 15, a sealed chamber is formed between the fixing plate 15, the boss 22 and the bottom cover 20, a slide plate 17 is slidably connected to the sealed chamber, the slide plate 17 is disposed at a side of the fixing plate 15 close to the boss 22, the top and bottom of the slide plate 17 contact with the bottom surfaces of the boss 22 and the bottom cover 20, respectively, the front and rear sides of the slide plate 17 contact with the inner wall of the bottom cover 20, a screw 16 is disposed at a side of the fixing plate 15 close to the slide plate 17, one end of the screw 16 is rotatably connected to the fixing plate 15, the other end of the screw 16 passes through the slide plate 17 and the bottom cover 20 and extends to the outer side of the bottom cover 20, specifically, the screw 16 is threadedly connected to the slide plate 17, a section of the screw 16 is disposed as a polish rod, so that the screw 16 is rotatably connected to the bottom end of the bottom cover 20 is disposed at a side of the fixing plate 15 so as to communicate with the sealed chamber.
Furthermore, a fixing ring is sleeved on the outer side of the screw 16, the fixing ring is fixedly connected to the bottom of the bottom cover 20, a clockwork spring 18 is arranged in the fixing ring, the clockwork spring 18 is sleeved on the outer side of the screw 16, the clockwork spring 18 is arranged on one side, away from the fixing plate 15, of the sliding plate 17, two free ends of the clockwork spring 18 are respectively connected with the inner wall of the fixing ring and the outer wall of the screw 16, the clockwork spring 18 can be energized to store power when the screw 16 is rotated, the clockwork spring 18 can be replaced by parts such as a coil spring in the actual use process, in addition, in order to ensure the stable operation of the clockwork spring 18, a retaining disc can be fixed on the outer side of the fixing ring so as to limit the clockwork spring 18, and one end, extending to the outer side of the bottom cover 20, of the screw 16 is fixedly connected with a knob 19.
Furthermore, an air inlet pipe 24 is fixedly connected to the side surface of the bottom cover 20, the air inlet pipe 24 is communicated with the sealed chamber, and a one-way valve for allowing external air to enter the sealed chamber in a one-way manner is arranged on the air inlet pipe 24.
During actual use, the rotary knob 19 is rotated to drive the screw rod 16 to rotate, the screw rod 16 drives the clockwork spring 18 to apply a force and accumulate force, meanwhile, the screw rod 16 can drive the sliding plate 17 to move towards the direction far away from the fixing plate 15, at the moment, external air can be sucked into the sealing chamber through the air inlet pipe 24, in the process of measuring the electric meter, when external force on the rotary knob 19 is removed, the screw rod 16 can be driven to rotate reversely under the action force of the clockwork spring 18, so that the sliding plate 17 is driven to gradually approach towards the fixing plate 15, at the moment, the air in the sealing chamber can be extruded into the sliding groove 4 through the air inlet groove 14 and then flows to the exhaust groove 11 through the second diversion groove 7 to be exhausted, and at the final stage of exhausting, the air is guided into the sealing tape 13 through the first diversion groove 5 to be expanded towards the direction of the keys, so as to seal between the through groove 23 and the keys, and the sliding groove 4 can be sealed through the adjusting assembly, so that the air in the sealing tape 13 is prevented from being discharged, and the sealing tape 13 is always kept in an expanded state and is contacted with the keys.
As shown in fig. 1, 3, and 7, the adjusting assembly includes an adjusting plate 6 slidably disposed inside a chute 4, the adjusting plate 6 is U-shaped, one side of the adjusting plate is provided with a through second diversion hole 25, the other side of the adjusting plate is provided with a through first diversion hole 26, a second sealing rod 8 is fixedly connected to a terminal surface of an end of the chute 4 close to the second diversion hole 25, a first sealing rod 3 is fixedly connected to a terminal surface of an end of the chute 4 close to the first diversion hole 26, the first sealing rod 3 and the second sealing rod 8 are both made of rubber material, the first sealing rod 3 is matched with the first diversion hole 26, when the first sealing rod 3 is inserted into the first diversion hole 26, the first diversion hole 26 can be sealed, similarly, the second sealing rod 8 is matched with the second diversion hole 25, a spring 2 is sleeved outside the first sealing rod 3, the spring 2 is disposed between the adjusting plate 6 and the end surface of the chute 4, two ends of the spring 2 are respectively fixedly connected to the adjusting plate 6, a pull rope 21 is disposed on one side of the adjusting plate 6 close to the spring 2, one end of the pull rope 21 is connected to a boss 22 of the adjusting plate, and a boss 22 connected to the adjusting plate 6, and a boss 22 extending through which is connected to the spring.
In actual use, as shown in fig. 9, when the screw 16 is rotated to drive the sliding plate 17 to move to the vicinity of the spring 18, the adjusting plate 6 can be driven to move to the end of the chute 4 by the pull rope 21, at this time, the first sealing rod 3 is inserted into the first diversion hole 26 on the adjusting plate 6, and the bottom end of the first diversion trench 5 can be sealed by the adjusting plate 6, and then the screw 16 can be driven to rotate reversely along with the reset of the spring 18, and further the sliding plate 17 is driven to move towards the fixing plate 15, so that the gas inside the sealed chamber is discharged into the chute 4 through the air inlet slot 14, and further enters the air discharge slot 11 through the second diversion trench 7, in the process that the sliding plate 17 gradually approaches the fixing plate 15, the movement state of the adjusting plate 6 is as shown in fig. 10, at this time, the adjusting plate 6 gradually separates from the first sealing rod 3, and the second sealing rod 8 is gradually inserted into the second diversion hole 25 on the adjusting plate 6, when the first sealing rod 3 is inserted into the first diversion hole 26 on the adjusting plate 6, the gas can enter the adjusting plate 4 and then can not enter the first diversion hole 6, and can also pass through the second diversion rod 8, and the second sealing rod 6 can avoid the gas from entering the second diversion trench 6 when the adjusting plate 6 and the second diversion trench 6 comes into the second diversion trench 8;
then, as shown in fig. 10, when the adjusting plate 6 reaches the air inlet slot 14 and the second sealing rod 8 is not in contact with the first guiding holes 26, the air in the sealing chamber can enter the sliding slot 4 through the first guiding holes 26 on the adjusting plate 6, and then enter the sealing strip 13 through the first guiding slots 5, so that the sealing strip 13 expands to be outwardly expanded and in contact with the outer circumferential surface of the key, so as to seal the gap between the through slot 23 and the key;
finally, as shown in fig. 11, when the adjusting plate 6 moves to one end face of the chute 4, the second sealing rod 8 is inserted into the first diversion hole 26 of the adjusting plate 6, and at this time, the gas in the first diversion trench 5 enters the chute 4 and does not leak through the adjusting plate 6, so that the gas in the sealing band 13 can be sealed through the adjusting plate 6, and is kept in an expanded state to continuously seal between the button and the through slot 23, and in the next use process, when the second sealing rod 8 is separated from the first diversion hole 26 of the dispensing plate, the gas in the sealing band 13 can be discharged through the chute 4 and the dispensing plate, thereby facilitating the next use.
In summary, the device is provided with the adjusting plate 6, so that when in use, air can be exhausted through the exhaust groove 11 to blow up the sealing strip 13, on one hand, external dust can be prevented from entering the inside of the device, on the other hand, pressing of the key is facilitated, and after use, the sealing strip 13 is in an expanded state, so that sealing can be performed between the key and the through groove 23, and further dust can be prevented from entering the inside of the device.
Claims (6)
1. The utility model provides a hand-held type three-phase electric energy meter, includes top cap and joint in the bottom of top cap bottom, install measuring component, its characterized in that between top cap and the bottom: the top cover is provided with a through groove for the key to penetrate out, a sinking groove is formed in the through groove, a sealing assembly for sealing a gap between the inner wall of the through groove and the key is arranged in the sinking groove, the sealing assembly comprises a sealing strip fixedly arranged at the through groove, and the sealing strip is arranged in an annular shape and is arranged on the outer side of the key;
an exhaust assembly is arranged between the bottom cover and the top cover, an adjusting assembly is arranged in the top cover, gas generated by the exhaust assembly is exhausted from the sink groove, and the adjusting assembly guides the gas generated by the exhaust assembly into the sealing belt to expand so as to be contacted with the outer circumferential surface of the key;
the sealing strip is arranged in the sinking groove, the outer circumferential surface of the sealing strip is fixedly connected with the inner side wall of the sinking groove, and the inner circumferential surface of the sealing strip is in a free state;
the bottom end of the sunken groove on the top cover is provided with a plurality of annular exhaust grooves, the sealing belts and the exhaust grooves are arranged in a plurality of numbers, connecting pipes are communicated between two adjacent sealing belts, connecting grooves are arranged between two adjacent exhaust grooves on the top cover and are respectively communicated with the exhaust grooves at two ends of the connecting grooves, the bottom end of the top cover is provided with a boss, a sliding groove is arranged in the boss along the length direction of the boss, a first guide groove is communicated between the connecting pipes and the sliding groove, a second guide groove is communicated between the connecting grooves and the sliding groove, the bottom surface of the second guide groove is flush with the bottom surface of the sliding groove, the second guide groove is arranged on one side, close to the key, of the first guide groove, and the bottom end of the second guide groove is communicated with an air inlet groove;
the exhaust assembly comprises a fixed plate fixedly connected inside a bottom cover, the fixed plate is arranged at the bottom of a boss, a sealing cavity is formed among the fixed plate, the boss and the bottom cover, a sliding plate is connected inside the sealing cavity in a sliding mode, the sliding plate is arranged on one side, close to the boss, of the fixed plate, a screw rod is arranged on one side, close to the sliding plate, of the fixed plate, one end of the screw rod is rotatably connected with the fixed plate, the other end of the screw rod penetrates through the sliding plate and the bottom cover and extends to the outer side of the bottom cover, the screw rod is in threaded connection with the sliding plate, the bottom end of an air inlet groove is arranged on one side of the fixed plate and is communicated with the sealing cavity, a fixing ring is sleeved on the outer side of the screw rod, a clockwork spring is arranged in the fixing ring and is sleeved on the outer side of the screw rod, the clockwork spring is arranged on one side, far away from the fixed plate, and two free ends of the clockwork spring are respectively connected with the inner wall of the fixing ring and the outer wall of the screw rod;
the adjusting part sets up in the inside regulating plate of spout including sliding, the regulating plate sets up to the U-shaped, the second water conservancy diversion hole that link up is seted up to regulating plate one side, the first water conservancy diversion hole that link up is seted up to the regulating plate opposite side, fixedly connected with second sealing rod on the inside one end terminal surface that is close to second water conservancy diversion hole of spout, the inside one end terminal surface that is close to first water conservancy diversion hole of spout goes up the first sealing rod of fixedly connected with, the outside cover of first sealing rod is equipped with the spring, the spring sets up between regulating plate and spout one end terminal surface, and is provided with the stay cord in one side that the regulating plate is close to the spring, the one end and the regulating plate fixed connection of stay cord, the other end of stay cord penetrates the boss and inside after extending towards the direction of keeping away from the clockwork spring wear out the boss and with slide fixed connection.
2. A hand-held three-phase electric energy meter according to claim 1, wherein: the bottom cover side fixedly connected with intake pipe, the intake pipe is linked together with sealed cavity, and is provided with the check valve that supplies outside gas to enter into sealed cavity inside unidirectionally in the intake pipe.
3. A hand-held three-phase electric energy meter according to claim 1, wherein: the first diversion trench is L-shaped, one end of the first diversion trench is communicated with a through hole formed in the pipe wall of the connecting pipe, and the other end of the first diversion trench is communicated with the sliding groove.
4. A hand-held three-phase electric energy meter according to claim 1, wherein: one section of the screw rod connected with the bottom cover is a polished rod, the polished rod section on the screw rod is rotationally connected with the bottom cover, and one end of the screw rod extending to the outer side of the bottom cover is fixedly connected with a knob.
5. A hand-held three-phase electric energy meter according to claim 1, wherein: the diameter of the through groove is larger than the outer diameter of the key.
6. A hand-held three-phase electric energy meter according to claim 1, wherein: the top and the bottom of slide contact with the bottom surface of boss and bottom respectively, both sides and the inner wall contact of bottom around the slide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210963005.9A CN115047225B (en) | 2022-08-11 | 2022-08-11 | Hand-held type three-phase electric energy meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210963005.9A CN115047225B (en) | 2022-08-11 | 2022-08-11 | Hand-held type three-phase electric energy meter |
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