CN115575695A - Convenient-to-use equipment for measuring electrical variable - Google Patents
Convenient-to-use equipment for measuring electrical variable Download PDFInfo
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- CN115575695A CN115575695A CN202211587828.2A CN202211587828A CN115575695A CN 115575695 A CN115575695 A CN 115575695A CN 202211587828 A CN202211587828 A CN 202211587828A CN 115575695 A CN115575695 A CN 115575695A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/0092—Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring current only
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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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
- G01R15/08—Circuits for altering the measuring range
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Abstract
The invention relates to a convenient-to-use device for measuring an electric variable, which belongs to the field of electric variable detection.A stroke adjusting mechanism is arranged in an outer shell and is used for adjusting the range in a visual range in an arc window; resistance-increasing mechanism sets up in the shell and is connected with the screw thread drive assembly, and resistance-increasing mechanism includes circumference butt subassembly and switches on the subassembly, switches on subassembly and electromagnetic attraction subassembly electric connection, and when the calibrated scale was rotatory 45, circumference butt subassembly can make and switch on the subassembly to make the electromagnetic attraction subassembly circular telegram, realize adjusting the measuring range as required.
Description
Technical Field
The invention relates to the field of electrical variable detection equipment, in particular to equipment for measuring an electrical variable, which is convenient to use.
Background
The ammeter is made by the action of magnetic field force applied to the current conductor in the magnetic field. When current flows, the magnitude of the current can be observed through the deflection degree of the pointer because the magnitude of the magnetic field force increases along with the increase of the current.
When the existing mechanical pointer type ammeter detects current, the measuring range of the existing mechanical pointer type ammeter is generally fixed, in order to increase the detecting range of the existing mechanical pointer type ammeter, a resistor needs to be connected in parallel in a circuit, the current flowing through the ammeter is reduced, then the actual current value is obtained through calculation, the mode is complex in operation, and in the calculating process, the result is prone to deviation caused by human errors.
In order to change the detection mode, most of the existing ampere meters are provided with multiple groups of measuring ranges and are matched with different binding posts, when the ampere meters are used, the binding posts corresponding to the appropriate measuring ranges can be selected according to the approximate current value in a circuit, so that more accurate measurement is realized, but the structure of the ampere meters is relatively more complex, and the ampere meters need to perform wiring operation frequently during detection.
Disclosure of Invention
The object of the present invention is to provide a device for measuring electrical variables that is easy to use, in order to solve the problems set forth in the background above.
In order to achieve the purpose, the invention provides the following technical scheme:
a convenient-to-use apparatus for measuring an electrical variable, comprising:
the outer shell is formed by two covering pieces which are oppositely clamped up and down, and the covering piece positioned at the upper part is provided with a 45-degree arc window;
the stroke adjusting mechanism is arranged in the outer shell and used for adjusting the range in the visible range in the arc window, the stroke adjusting mechanism comprises a thread transmission assembly, an electromagnetic attraction assembly and an elastic indication assembly, an iron block matched with the electromagnetic attraction assembly is arranged on the elastic indication assembly, the thread transmission assembly is connected with a dial which is rotatably arranged in the outer shell, the dial is driven to rotate when the thread transmission assembly acts, and the initial compression amount of the elastic indication assembly is changed through a thrust plate connected with the thread transmission assembly;
resistance-increasing mechanism sets up in the shell and with the screw thread drive assembly is connected, resistance-increasing mechanism includes circumference butt subassembly and switches on the subassembly, switch on the subassembly with electromagnetic attraction subassembly electric connection when the calibrated scale is rotatory 45, circumference butt subassembly can make it switches on to switch on the subassembly, so that the electromagnetic attraction subassembly circular telegram.
As a further scheme of the invention: the thread transmission assembly comprises a screw rod rotatably arranged between the two covering parts, a thread sleeve in threaded connection with the screw rod is arranged on the screw rod, and the thread sleeve is fixedly connected with the thrust plate;
the one end of lead screw is still connected and is rotated and install bevel gear group on the covering, bevel gear group connects through a belt the pivot of calibrated scale.
As a still further scheme of the invention: the elastic indicating assembly comprises a first vertical rod fixedly mounted on the covering piece, the first vertical rod is sleeved with one end, far away from the threaded sleeve, of the thrust plate in a sliding mode, a follow-up plate is mounted on the first vertical rod in a sliding mode, and the follow-up plate is fixedly connected with the iron block;
a first spring is further sleeved on the first vertical rod, one end of the first spring is connected with the follow-up plate, and the other end of the first spring is connected with the thrust plate;
a limiting groove is formed in the circumferential outer wall of the first vertical rod along the length direction of the first vertical rod, and the limiting groove is in sliding fit with a limiting block arranged on the inner wall of the follow-up plate;
the resilient indicating assembly further comprises a follower structure.
As a still further scheme of the invention: the follow-up structure includes fixed mounting and is in rack plate on the follow-up board, rack plate and rotation are installed two gear engagement between the covering, the gear is connected through No. two belts and is rotated the installation pointer in the covering, the pivot of pointer with the coaxial setting of pivot of calibrated scale.
As a still further scheme of the invention: the electromagnetic attraction component comprises an iron core fixedly mounted on the covering part, a winding coil is wound on the iron core, and two ends of the winding coil are electrically connected with the conduction component.
As a still further scheme of the invention: the circumferential abutting assembly comprises a rotating disc which is rotatably installed between the two covering parts, the rotating disc is connected with the bevel gear set through a third belt, and four grooves are formed in the side part of the rotating disc at equal intervals;
the circumference butt subassembly is still including installing energy storage structure on the covering, energy storage structure's one end rotate install with the butt wheel of recess adaptation.
As a still further scheme of the invention: the energy storage structure comprises a second vertical rod fixedly arranged on the covering part, a butting rod is slidably arranged on the second vertical rod, and one end, far away from the second vertical rod, of the butting rod is rotatably connected with the butting wheel;
no. two springs are sleeved on the second vertical rod, one end of each spring is connected with the corresponding abutting rod, and the other end of each spring is connected with the end of the corresponding second vertical rod.
As a still further scheme of the invention: the conducting assembly comprises two binding posts arranged on the covering part, wherein one binding post is connected with one end of the winding coil through a conducting strip, the other binding post is connected with a moving contact fixedly arranged on the butting rod through a conducting wire, and the moving contact is matched with a fixed contact fixedly arranged on the covering part;
and the static contact is connected with the other end of the winding coil through the other conducting strip.
Compared with the prior art, the invention has the beneficial effects that:
through the arranged stroke adjusting mechanism, the change of the visible range in the arc-shaped window can be realized, and meanwhile, the output compression amount of the first spring is adjusted, so that the force for driving the follow-up plate to move is changed, the current value range which flows through the electromagnetic attraction component to drive the follow-up plate to move is changed, the change of the actual current value range is synchronous with the change of the actual range on the dial, and the detection precision is improved;
through the resistance increasing mechanism that sets up, make after the calibrated scale rotation targets in place, the lead screw will produce an obvious damping and feel, in order to remind user's calibrated scale to rotate and target in place, thereby avoided just beginning to detect because the calibrated scale rotates not to target in place, the testing result that leads to has the error, only when recess and butt pulley gomphosis simultaneously, the moving contact just can be connected with the static contact, and make the electric current on the terminal flow through wire winding coil, the pointer just can take place the action this moment, make only after the calibrated scale position targets in place, just have the test function, thereby further improve and detect the precision.
Drawings
Fig. 1 is a schematic structural view of an embodiment of an apparatus for measuring an electrical variable, which is convenient to use.
Fig. 2 is a schematic view of an upper cover part of an embodiment of the apparatus for measuring an electrical variable, which is convenient to use, after removal.
Fig. 3 is a schematic view of another angular configuration of an upper cover part of an embodiment of the apparatus for measuring an electrical variable, which is convenient to use, after removal.
Fig. 4 is a schematic view of a screw assembly in an embodiment of an apparatus for measuring an electrical variable, which is convenient to use.
Fig. 5 is a schematic view of the structure of the elastic indicating member in an embodiment of the apparatus for measuring an electric variable which is convenient to use.
Fig. 6 is an exploded view of a portion of the spring indicating member in one embodiment of the apparatus for measuring an electrical variable for convenient use.
Fig. 7 is a schematic view of the resistance increasing mechanism in an embodiment of the apparatus for measuring an electrical variable which is convenient to use.
In the figure: 1. a cover; 2. a dial scale; 3. a first belt; 4. a bevel gear set; 5. a screw rod; 6. a threaded sleeve; 7. a thrust plate; 8. a knob; 9. a first upright rod; 10. a limiting groove; 11. a first spring; 12. a follower plate; 13. a limiting block; 14. an iron block; 15. a rack plate; 16. a gear; 17. a second belt; 18. a pointer; 19. an iron core; 20. a winding coil; 21. a conductive sheet; 22. a binding post; 23. static contact; 24. a moving contact; 25. a butting rod; 26. a second upright rod; 27. a second spring; 28. a butting wheel; 29. rotating the disc; 30. a groove; 31. no. three belts.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
In addition, an element described herein as being "secured to" or "disposed on" another element may be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Referring to fig. 1 to 7, in an embodiment of the present invention, an apparatus for measuring an electrical variable, which is convenient to use, includes: shell body, stroke adjustment mechanism and resistance-increasing mechanism.
The shell body is formed by covering 1 of two upper and lower subtend block, and is located upper portion 45 arc window has been seted up on covering 1, and is concrete, can also adopt bolted connection between two covering 1 to the convenience is overhauing equipment, can carry out more convenient dismantlement to equipment.
The stroke adjusting mechanism is arranged in the outer shell and used for adjusting the range in the visible range in the arc window, the stroke adjusting mechanism comprises a thread transmission assembly, an electromagnetic attraction assembly and an elastic indication assembly, an iron block 14 matched with the electromagnetic attraction assembly is arranged on the elastic indication assembly, the thread transmission assembly is connected with a dial 2 which is rotatably arranged in the outer shell, when the thread transmission assembly acts, the dial 2 is driven to rotate, and the initial compression amount of the elastic indication assembly is changed through a thrust plate 7 connected with the thread transmission assembly;
the thread transmission assembly comprises a screw rod 5 which is rotatably arranged between the two covering parts 1, one end of the screw rod 5 is provided with a knob 8, the screw rod 5 is provided with a thread sleeve 6 which is in threaded connection with the screw rod, and the thread sleeve 6 is fixedly connected with the thrust plate 7;
the other end of the screw rod 5 is also connected with a bevel gear set 4 which is rotatably arranged on the covering part 1, and the bevel gear set 4 is connected with a rotating shaft of the dial 2 through a first belt 3;
the elastic indicating component comprises a first vertical rod 9 fixedly mounted on the covering part 1, the first vertical rod 9 is slidably sleeved with one end, away from the threaded sleeve 6, of the thrust plate 7, a follow-up plate 12 is slidably mounted on the first vertical rod 9, and the follow-up plate 12 is fixedly connected with the iron block 14;
a first spring 11 is further sleeved on the first vertical rod 9, one end of the first spring 11 is connected with the follow-up plate 12, and the other end of the first spring 11 is connected with the thrust plate 7;
a limiting groove 10 is formed in the circumferential outer wall of the first vertical rod 9 along the length direction of the first vertical rod, and the limiting groove 10 is in sliding fit with a limiting block 13 arranged on the inner wall of the follow-up plate 12;
the elastic indicating assembly further comprises a follow-up structure, the follow-up structure comprises a rack plate 15 fixedly installed on the follow-up plate 12, the rack plate 15 is installed in a two-way mode in a rotating mode, a gear 16 between the covering pieces 1 is meshed with the gear 16, the gear 16 is connected through a second belt 17 and is installed in a rotating mode in a pointer 18 in the covering pieces 1, and a rotating shaft of the pointer 18 is coaxially arranged with a rotating shaft of the dial 2.
The dial 2 is divided into four regions equally, a plurality of scales are arranged in each region at equal intervals, the scales in each region are measured by zero, the maximum range of each region is sequentially increased along the circumferential direction of the dial 2, namely when the range of one region is 0-5A, the ranges of the other regions can be 0-10A, 0-20A and 0-30A, and the specific range can be set according to production requirements, so that when the dial 2 is used, the ranges of the dial 2 and arc windows which are overlapped are different, and the selectivity of the range of the device during current detection is improved.
Specifically, in the using process, when the detected range needs to be changed, the lead screw 5 is rotated to drive the bevel gear set 4 connected with the lead screw to act, the bevel gear set 4 drives the dial 2 to rotate through the belt 3, so that the overlapping range of the dial 2 and the arc-shaped window is changed, so as to change the range in the arc-shaped window, when the lead screw 5 is rotated, the threaded sleeve 6 in threaded fit with the lead screw 5 moves in the axial direction of the lead screw 5 and drives the thrust plate 7 to displace, taking the rotation of the dial 2 as an example to increase the range in the arc-shaped window, at this time, the threaded sleeve 6 moves towards the dial 2 and extrudes one end of the spring 11 through the thrust plate 7, at this time, the initial compression amount of the spring 11 is changed, when current flows through the electromagnetic attraction assembly, the electromagnetic attraction assembly generates magnetic force to attract the iron block 14, so that the follower 12 moves, and compresses the other end of the spring 11, because the movement of the thrust plate 7 changes the initial compression amount of the spring 11, after the position of the thrust plate 7 is changed, the movement of the follower 12 moves, so that the current value can be accurately detected, and the current value can be increased if the current value of the electromagnetic attraction assembly flows through the arc-shaped window, so that the follow-up current value can be accurately detected, so as to increase the follow-up current value, and the follow-up current value can be detected.
Because of the existence of the first spring 11, the follower plate 12 can be always abutted against one end of the first vertical rod 9 far away from the thrust plate 7, at the moment, the pointer 18 is superposed with one side wall of the arc window, when the iron block 14 is attracted to drive the follower plate 12 to move, the rack plate 15 moves at the moment, the gear 16 meshed with the rack plate 15 rotates, the gear 16 drives the pointer 18 to rotate through the second belt 17 to display the detected current value, and simultaneously, after the current in the electromagnetic attraction component is cut off, the rack plate 15 can move reversely under the driving of the first spring 11, so that the pointer 18 is reset.
Through the arrangement, the output compression amount of the first spring 11 is adjusted while the visible range in the arc window is changed, so that the force for driving the follow-up plate 12 to move is changed, the current value range flowing through the electromagnetic attraction component for driving the follow-up plate 12 to move is changed, the change of the actual current value range is synchronous with the change of the actual range on the dial 2, the detection precision is improved, and compared with the existing current detection device, the detection device only can roughly detect the current value when detecting large current due to the limited detection range, and obviously, the detection result of the invention is more accurate.
Referring to fig. 3, 5 and 7, the resistance increasing mechanism is disposed in the outer casing and connected to the threaded transmission assembly, the resistance increasing mechanism includes a circumferential abutting assembly and a conducting assembly, the conducting assembly is electrically connected to the electromagnetic attraction assembly, and when the dial 2 rotates 45 °, the circumferential abutting assembly can conduct the conducting assembly to electrify the electromagnetic attraction assembly;
the electromagnetic attraction component comprises an iron core 19 fixedly mounted on the covering part 1, a winding coil 20 is wound on the iron core 19, and two ends of the winding coil 20 are electrically connected with the conduction component;
the circumferential abutting assembly comprises a rotating disc 29 rotatably installed between the two covering pieces 1, the rotating disc 29 is connected with the bevel gear set 4 through a third belt 31, and four grooves 30 are equidistantly formed in the side portion of the rotating disc 29;
the circumferential abutting assembly further comprises an energy storage structure arranged on the covering part 1, one end of the energy storage structure is rotatably provided with an abutting wheel 28 matched with the groove 30, the energy storage structure comprises a second vertical rod 26 fixedly arranged on the covering part 1, an abutting rod 25 is slidably arranged on the second vertical rod 26, and one end, far away from the second vertical rod 26, of the abutting rod 25 is rotatably connected with the abutting wheel 28;
a second spring 27 is sleeved on the second vertical rod 26, one end of the second spring 27 is connected with the butting rod 25, and the other end of the second spring 27 is connected with the end part of the second vertical rod 26;
the conducting assembly comprises two terminals 22 arranged on the covering part 1, wherein one terminal 22 is connected with one end of the wound coil 20 through a conducting strip 21, the other terminal 22 is connected with a moving contact 24 fixedly arranged on the abutting rod 25 through a conducting wire, and the moving contact 24 is matched with a fixed contact 23 fixedly arranged on the covering part 1;
the fixed contact 23 is connected to the other end of the winding coil 20 through another conducting strip 21.
When the screw rod 5 rotates to drive the bevel gear set 4 to act, the bevel gear set 4 drives the dial 2 to rotate through the first belt 3 on one hand, and drives the rotating disc 29 to rotate through the third belt 31 on the other hand, and the transmission ratio of the first belt 3 to the third belt 31 is the same, so that the rotating speed of the rotating disc 29 is the same as that of the dial 2, and in the rotating process of the rotating disc 29, the groove 30 on the rotating disc 29 is embedded with the abutting wheel 28, so that in the rotating process of the screw rod 5, when the groove 30 is embedded with the abutting wheel 28, the screw rod 5 generates an obvious damping feeling to remind a user that the dial 2 rotates in place, and therefore the detection result has errors due to the fact that the dial 2 rotates not in place to start detection.
Furthermore, only when the groove 30 is embedded with the abutting wheel 28, the movable contact 24 is connected with the fixed contact 23, and the current on the terminal 22 flows through the winding coil 20, and at the moment, the pointer 18 acts, so that the dial 2 has a detection function only after being in place, and the detection precision is further improved.
In summary, the dial 2 is equally divided into four regions, each region is provided with a plurality of scales at equal intervals, the scales in each region are measured from zero, and the maximum measuring range of each region is sequentially increased along the circumferential direction of the dial 2, namely when the measuring range of one region is 0-5A, the measuring ranges of the other regions can be 0-10A, 0-20A and 0-30A, and the specific measuring range can be set according to production requirements, so that when the dial 2 is used, the measuring range in which the dial 2 and the arc-shaped window coincide is different by rotating the dial 2, and the selectivity of the measuring range of the device in current detection is improved.
Specifically, in the using process, when the detected range needs to be changed, the lead screw 5 is rotated to drive the bevel gear set 4 connected with the lead screw to move, the bevel gear set 4 drives the dial 2 to rotate through the belt 3, so that the overlapping range of the dial 2 and the arc-shaped window is changed, so as to change the range of the range in the arc-shaped window, when the lead screw 5 is rotated, the threaded sleeve 6 in threaded fit with the lead screw 5 moves in the axial direction of the lead screw 5 and drives the thrust plate 7 to displace, taking the dial 2 to rotate to enlarge the range in the arc-shaped window as an example, at this time, the threaded sleeve 6 moves towards the dial 2 and extrudes one end of the spring 11 through the thrust plate 7, at this time, the initial compression amount of the spring 11 is changed, when current flows through the electromagnetic attraction assembly, the electromagnetic attraction assembly generates magnetic force and attracts the iron block 14 to move the follower 12, and compresses the other end of the spring 11, because the thrust plate 7 moves to change the initial compression amount of the spring 11, after the position of the thrust plate 7 is changed, the movement of the follower 12, so that the current value is changed, and the current value of the electromagnetic attraction assembly can be accurately measured if the current value of the arc-shaped window is increased, so that the current value of the electromagnetic attraction assembly can be accurately measured.
Because of the existence of the first spring 11, the follower plate 12 can be always abutted against one end of the first vertical rod 9 far away from the thrust plate 7, at the moment, the pointer 18 is superposed with one side wall of the arc window, when the iron block 14 is attracted to drive the follower plate 12 to move, the rack plate 15 moves at the moment, the gear 16 meshed with the rack plate 15 rotates, the gear 16 drives the pointer 18 to rotate through the second belt 17 to display the detected current value, and simultaneously, after the current in the electromagnetic attraction component is cut off, the rack plate 15 can move reversely under the driving of the first spring 11, so that the pointer 18 is reset.
When the screw rod 5 rotates to drive the bevel gear group 4 to act, the bevel gear group 4 drives the dial 2 to rotate through the first belt 3 on one hand, and drives the rotating disc 29 to rotate through the third belt 31 on the other hand, and the transmission ratio of the first belt 3 to the third belt 31 is the same, so that the rotating speed of the rotating disc 29 is the same as that of the dial 2, and in the rotating process of the rotating disc 29, the groove 30 on the rotating disc 29 is embedded with the abutting wheel 28, so that in the rotating process of the screw rod 5, when the groove 30 is embedded with the abutting wheel 28, the screw rod 5 generates an obvious damping feeling to remind a user that the dial 2 rotates in place, and therefore the detection result error caused by the fact that the dial 2 rotates not in place is avoided.
Furthermore, only when the groove 30 is embedded with the abutting wheel 28, the movable contact 24 is connected with the fixed contact 23, and the current on the terminal 22 flows through the winding coil 20, and at the moment, the pointer 18 acts, so that the dial 2 has a detection function only after being in place, and the detection precision is further improved.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. A device for measuring an electrical variable, which is convenient to use, comprising:
the outer shell is formed by two covering pieces (1) which are oppositely clamped up and down, and a 45-degree arc-shaped window is formed in the covering piece (1) positioned at the upper part;
the stroke adjusting mechanism is arranged in the outer shell and used for adjusting the range in the visible range of the arc window, the stroke adjusting mechanism comprises a threaded transmission assembly, an electromagnetic attraction assembly and an elastic indicating assembly, an iron block (14) matched with the electromagnetic attraction assembly is arranged on the elastic indicating assembly, the threaded transmission assembly is connected with a dial (2) rotatably arranged in the outer shell, the dial (2) is driven to rotate when the threaded transmission assembly acts, and the initial compression amount of the elastic indicating assembly is changed through a thrust plate (7) connected with the threaded transmission assembly;
resistance-increasing mechanism sets up in the shell and with the screw drive assembly is connected, resistance-increasing mechanism includes circumference butt subassembly and switches on the subassembly, switch on the subassembly with electromagnetic attraction subassembly electric connection dial (2) rotatory 45 during, circumference butt subassembly can make the subassembly switches on, so that the electromagnetism attracts the subassembly circular telegram.
2. A device for measuring electrical variables convenient to use according to claim 1, characterized in that the screw transmission assembly comprises a screw rod (5) rotatably mounted between the two covering members (1), the screw rod (5) is provided with a threaded sleeve (6) in threaded connection with the screw rod, and the threaded sleeve (6) is fixedly connected with the thrust plate (7);
the one end of lead screw (5) is still connected the rotation and is installed bevel gear group (4) on covering (1), bevel gear group (4) are connected through a belt (3) the pivot of calibrated scale (2).
3. A device for measuring an electric variable which is convenient to use according to claim 2, wherein the elastic indicating component comprises a first vertical rod (9) fixedly mounted on the cover member (1), the first vertical rod (9) is slidably sleeved with one end of the thrust plate (7) far away from the threaded sleeve (6), a follower plate (12) is slidably mounted on the first vertical rod (9), and the follower plate (12) is fixedly connected with the iron block (14);
a first spring (11) is further sleeved on the first vertical rod (9), one end of the first spring (11) is connected with the follow-up plate (12), and the other end of the first spring is connected with the thrust plate (7);
a limiting groove (10) is formed in the circumferential outer wall of the first vertical rod (9) along the length direction of the first vertical rod, and the limiting groove (10) is in sliding fit with a limiting block (13) arranged on the inner wall of the follow-up plate (12);
the resilient indicating assembly further comprises a follower structure.
4. A device for measuring electrical variables convenient to use according to claim 3 characterized in that the follower structure comprises a rack plate (15) fixedly mounted on the follower plate (12), the rack plate (15) meshes with a gear (16) rotatably mounted between the two covers (1), the gear (16) is connected with a pointer (18) rotatably mounted in the covers (1) by a second belt (17), the rotation axis of the pointer (18) is arranged coaxially with the rotation axis of the dial (2).
5. A device for measuring electrical variables convenient to use according to claim 2 characterized in that said electromagnetic attraction assembly comprises a core (19) fixedly mounted on said cover (1), a winding coil (20) being wound on said core (19), both ends of said winding coil (20) being electrically connected with said conducting assembly.
6. A device for measuring electrical variables that is easy to use and that is characterized by the fact that it comprises a rotating disc (29) mounted in rotation between two said covers (1), said rotating disc (29) being connected to said bevel gear set (4) by a third belt (31), and the sides of said rotating disc (29) being provided with four grooves (30) at equal distances;
the circumference butt subassembly still including installing energy storage structure on covering (1), energy storage structure's one end rotate install with butt wheel (28) of recess (30) adaptation.
7. The apparatus for measuring electrical variables convenient to use according to claim 6, characterized in that said energy storage structure comprises a second upright (26) fixedly mounted on said cover (1), on said second upright (26) there is slidably mounted a thrust rod (25), one end of said thrust rod (25) remote from said second upright (26) is rotatably connected to said thrust wheel (28);
no. two spring (27) are sleeved on No. two upright stanchions (26), one end of No. two spring (27) with the pole of joining (25) is connected, the other end with the end connection of No. two upright stanchions (26).
8. The apparatus for measuring electrical variables convenient to use according to claim 7, characterized in that the conducting assembly comprises two terminals (22) arranged on the covering member (1), wherein one of the terminals (22) is connected with one end of the wound coil (20) through a conducting strip (21), the other terminal (22) is connected with a movable contact (24) fixedly arranged on the abutting rod (25) through a conducting wire, and the movable contact (24) is adapted to a fixed contact (23) fixedly arranged on the covering member (1);
the static contact (23) is connected with the other end of the winding coil (20) through the other conducting strip (21).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211587828.2A CN115575695B (en) | 2022-12-12 | 2022-12-12 | Convenient-to-use equipment for measuring electrical variable |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211587828.2A CN115575695B (en) | 2022-12-12 | 2022-12-12 | Convenient-to-use equipment for measuring electrical variable |
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| CN115575695B CN115575695B (en) | 2023-03-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116577526A (en) * | 2023-07-13 | 2023-08-11 | 扬州邗远智能装备有限公司 | Current detecting instrument |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN205880038U (en) * | 2015-12-22 | 2017-01-11 | 大庆市大同区诚成家禽孵化专业合作社 | Two -way clip on ammeter of direct current |
| CN109085390A (en) * | 2018-09-03 | 2018-12-25 | 合肥海畅电气技术有限公司 | A kind of double casing voltmeter with corrosion proof function |
| CN111736002A (en) * | 2020-06-10 | 2020-10-02 | 熊吉来 | Ammeter assembly for preventing pointer bending caused by overlarge current |
| CN213633565U (en) * | 2020-11-26 | 2021-07-06 | 裴卫国 | Novel electricity meter |
| CN113176436A (en) * | 2021-04-25 | 2021-07-27 | 浙江松夏仪表有限公司 | Industrial alternating current meter with calibration positioning assembly |
| CN115394612A (en) * | 2022-10-26 | 2022-11-25 | 广东米勒电气有限公司 | Opening and closing on-line monitoring circuit breaker based on digital isolation and working method thereof |
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| CN113176436A (en) * | 2021-04-25 | 2021-07-27 | 浙江松夏仪表有限公司 | Industrial alternating current meter with calibration positioning assembly |
| CN115394612A (en) * | 2022-10-26 | 2022-11-25 | 广东米勒电气有限公司 | Opening and closing on-line monitoring circuit breaker based on digital isolation and working method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116577526A (en) * | 2023-07-13 | 2023-08-11 | 扬州邗远智能装备有限公司 | Current detecting instrument |
| CN116577526B (en) * | 2023-07-13 | 2023-09-12 | 扬州邗远智能装备有限公司 | Current detecting instrument |
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| Publication number | Publication date |
|---|---|
| CN115575695B (en) | 2023-03-14 |
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