CN2798101Y - Pointer type voltage meter - Google Patents
Pointer type voltage meter Download PDFInfo
- Publication number
- CN2798101Y CN2798101Y CN 200520071917 CN200520071917U CN2798101Y CN 2798101 Y CN2798101 Y CN 2798101Y CN 200520071917 CN200520071917 CN 200520071917 CN 200520071917 U CN200520071917 U CN 200520071917U CN 2798101 Y CN2798101 Y CN 2798101Y
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- adjusting mechanism
- display board
- meter
- indicating value
- needle
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Abstract
The utility model discloses a pointer type voltage meter which comprises a shell, a meter panel, a pointer and a voltage detection mechanism driving the pointer to move, wherein the voltage detection mechanism is electrically connected with a binding post fixed on the shell, and scale lines are labeled on the meter panel. The pointer type voltage meter also comprises a display panel and a rectilinear motion adjusting mechanism matched with the display panel, and an electrical contact adjusting mechanism linked with the rectilinear motion adjusting mechanism, wherein a window is arranged in the position where indicated values are labeled on the meter panel, indicated values with different limited quantities are correspondingly arranged on the display panel, contiguous groups of indicated values are arranged equidistantly along the moving direction of the display panel, and the electrical contact adjusting mechanism is respectively connected with corresponding connection points of a bleeder circuit. The utility model can be directly applied to the existing voltage meter, the meter head of the original voltage meter is not changed to realize that the same voltage meter can measure and display voltage with different limited quantities, and the utility model is convenient for users to use.
Description
Technical field
The utility model relates to a kind of device that is used for measuring voltage, is specifically related to a kind of pointer A.C. voltmeter.
Background technology
The mount type pointer-type A.C. voltmeter such as the 6L2 type that in the electric power low-pressure system, use at present, 42L6 type etc., carry out CNS GB/T7676-98, this type of voltage table comprises housing, surface plate, pointer and drives the voltage detection mechanism of hand motion, described voltage detection mechanism is electrically connected with binding post on the housing, and the surface plate subscript is shown with nonlinear scale mark and corresponding indicating value.Its weak point is that the amount limit of voltage table is fixed, unadjustable, thereby for needing to change the user of voltage table amount limit because of the change of tested value or because of adjusting range ability, can only be to select to change the voltage table of appropriate amount limit more to satisfy requirement in the measurement, this has brought inconvenience to the user, also can cause waste.
Summary of the invention
The utility model purpose provides a kind of voltage table that can regulate measurement range and amount limit marker value simultaneously, to be fit to the request for utilization of needs regulation voltage table amount limit.
For achieving the above object, the technical solution adopted in the utility model is: a kind of needle dc voltmeter, comprise housing, surface plate, the voltage detection mechanism of pointer and driving hand motion, described voltage detection mechanism is electrically connected with binding post on being fixed on housing, the surface plate subscript is shown with scale mark, the rectilinear motion adjusting mechanism that also includes display board and cooperate with it, and with the electric contact governor motion of described adjusting mechanism interlock, the position that indicates indicating value on the described surface plate has window, the corresponding indicating value that is provided with different amount limits on the described display board, adjacent every group of indicating value equidistantly arranged along the display board moving direction, and described electric contact governor motion is connected with the corresponding contact of bleeder circuit respectively.
In the technique scheme, described voltage detection mechanism is a prior art, design of the present utility model is, the original local windowing that shows indicating value on surface plate, add a display board that can move at the rear of surface plate, be printed on many group numerals on the display board, indicating value corresponding to difference amount limit, because the position of each indicating value is not equally distributed, after consideration, each group indicating value numeral rectilinear direction is equidistantly arranged, thereby, by the rectilinear motion adjusting mechanism, corresponding indicating value is exposed from the surface plate window, become the indicating value of current amount limit.The change amount needs only the position of adjusting display board in limited time.In order to guarantee the rectilinear motion of display board, avoid being offset the display error that causes, can seat board be set at the rear of display board, but display board vertical direction or horizontal direction move relative to seat board, the both sides of display board adopt oat tail groove structure to be assemblied on the seat board.Certainly, the rectilinear motion adjustment of display board is a kind of prior art, and those skilled in the art can provide other fully and adjust structure.Simultaneously, utilize different divider resistance values to realize the change of voltage table range, when adjusting the display board position, change the divider resistance resistance that inserts, realize the synchronous change of voltage table range and amount limit displayed value.
In the technique scheme, described rectilinear motion adjusting mechanism is, is fixed with tooth bar on the display board, is provided with and described tooth bar meshed gears, and the outer knob of transmission shaft one end of gear and housing is fixedlyed connected.
Wherein, described electric contact governor motion is, is fixed on the spiral arm of the interior cover on the knob moving contact is housed, and a plurality of static contacts of Pei Heing are fixed on the housing with it.
Further technical scheme, the spiral arm of described knob is provided with screw, and corresponding each amount limit marker indicating value display position is provided with the boss nut on the described housing, and described screw cooperates the location with the boss nut.
In the technique scheme, described rectilinear motion adjusting mechanism is a driving lever, and driving lever one end is fixedlyed connected with display board, and display board is spacing by chute, be provided with a plurality of elastic positioning structures in the chute, each elastic positioning structure matches with each amount limit marker indicating value display position.
Further technical scheme, described rectilinear motion adjusting mechanism is the lengthwise movement adjusting mechanism.
Because the technique scheme utilization, the utility model compared with prior art has following advantage:
Since the utility model just to voltage table surface plate windowing and add display board, realize the demonstration change of different amount limits, establish the electric contact conversion equipment simultaneously, cooperate divider resistance to realize the change of range, thereby can directly apply on the existing voltage table, can not change the gauge outfit of primary voltage table, it is convenient to realize;
2. the utility model can be realized the measurement demonstration that same voltage table is rationed the power supply and pressed the difference amount, needn't change table when change in voltage is big, and the user uses convenient;
3. gear of the present utility model-tooth bar engaging structure, interlock electric contact transformational structure, the rotation gear shift of knob is very easy, and can locate by screw, guarantee indicatrix limit that knob locatees with and with electric contact to change gear consistent.
Description of drawings
Accompanying drawing 1 is the structural representation of the utility model embodiment one;
Accompanying drawing 2 is the A-A cut-open view of Fig. 1;
Accompanying drawing 3 is the cross-sectional schematic of D-D part among Fig. 2;
Accompanying drawing 4 is the left view of Fig. 1;
Accompanying drawing 5 is the right view of Fig. 1;
Accompanying drawing 6 is that Fig. 4 is at another amount synoptic diagram in limited time;
Accompanying drawing 7 is that Fig. 5 is at another amount synoptic diagram in limited time;
Accompanying drawing 8 is that Fig. 4 is at the third amount synoptic diagram in limited time;
Accompanying drawing 9 is that Fig. 5 is at the third amount synoptic diagram in limited time;
Accompanying drawing 10 is that the B of bonnet among Fig. 1 is to view;
Accompanying drawing 11 is the cross-sectional schematic of the C-C part of Figure 10;
Accompanying drawing 12 is the electric contact wiring schematic diagram.
Wherein: [100], procapsid; [101], surface plate; [102], window; [103], display board; [104], indicating value; [105], tooth bar; [106], seat board; [107], oblong aperture; [108], transmission shaft; [109], gear; [110], justify handle; [200], back casing; [201], boss nut; [202], amount limit sign; [203], limited post; [204], static contact; [205], terminal strip; [206], knob; [207], screw; [208], interior cover; [209], moving contact.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described:
Embodiment one: referring to accompanying drawing 1 to shown in the accompanying drawing 12, a kind of needle dc voltmeter, comprise housing, surface plate, the voltage detection mechanism of pointer and driving hand motion, described voltage detection mechanism is electrically connected with binding post on being fixed on housing, the surface plate subscript is shown with scale mark, the rectilinear motion adjusting mechanism that also includes display board and cooperate with it, and with the electric contact governor motion of described adjusting mechanism interlock, the position that indicates indicating value on the described surface plate has window, the corresponding indicating value that is provided with different amount limits on the described display board, adjacent every group of indicating value equidistantly arranged along the display board moving direction, and described electric contact governor motion is connected with the corresponding contact of bleeder circuit respectively.
The rectilinear motion adjusting mechanism of present embodiment adopts rack and pinion mechanism, shown in accompanying drawing 1, the internal tooth form center pit of the knob 206 on the back casing 200 and an end external tooth form of the transmission shaft 108 on the procapsid 100 circle handle 110 are done axially to flexibly connect, radially close-fitting connects, thus back casing 200 and procapsid 100 can deciliter; The other end of transmission shaft 108 is equipped with tooth bar 105 engagements on gear 109 and the display board 103; Display board 103 adopts the oat tail groove structure assembling as shown in Figure 3 with seat board 106, but display board 103 vertical direction are displaced on the seat board 106 thus; The front of display board 103 and seat board 106 is by surface plate 101; Have a plurality of windows 102 on the surface plate 101; Be printed on the indicating value 105 of many group numerals on the display board 103, and outwards show wherein set of number by a plurality of windows 102 on the surface plate 101 with each amount limit of sign; On procapsid 100, the central shaft of knob 206 is connected with interior cover 208 by the circular hole on the back casing 200 by screw retention for surface plate 101 and seat board 106, and is that the center can smooth rotation with the central shaft of knob 206; In cover 208 spiral arm moving contact 209 is housed, cooperate with static contact 204 on being fixed on back casing 200; The spiral arm direction of interior cover 208 is consistent with the spiral arm direction of knob 206.
Fig. 2 has provided the position of the indicating value 104 of many groups numeral that display board 103 prints on the one hand on position on the seat board 106 and display board 103, arranged evenly and quantity of these many group indicating values 104 are determined to meet this voltage table and decided the requirement that the non-linear many calibration range under the scale in the scope is indicated at the volume limit gauge; Provided the position of engagement of position in the oblong aperture 107 of tooth bar 105 on seat board 106 and tooth bar 105 and gear 109 on the other hand; Shown in the vertical moving of 107 pairs of tooth bars 105 of oblong aperture play position-limiting action, when guaranteeing tooth bar 105 vertical moving and gear 109 mesh all the time.
Accompanying drawing 3 has provided the oat tail groove structure of display board 103 with seat board 106, with the rotation of gear 109, makes the display board 103 that fuses with tooth bar 105 do steadily moving of vertical direction in the dovetail groove of seat board 106 by tooth bar 105.
Accompanying drawing 4 to accompanying drawing 9 is prescribe a time limit synoptic diagram of forward and backward both sides of the third gear amount limit gauge lattice voltage table regulated quantity of present embodiment, as can be seen from the figure, the maximum indicating value number that shows in the window and knob arm end amount limit sign pointed is consistent, on back casing as seen, each grade of third gear position of knob 206 conversion is separated by and 60 is spent angles, simultaneously, back casing is provided with the offside limited post 203 of restriction knob 206.
Figure 10, Figure 11 have provided the electric contact conversion device structure on the one hand, shown in have an arc insulation strip direct casting embedding 6 circular static contacts 204 on the back casing 200, draw terminal strip 205 by static contact 204 simultaneously; On the spiral arm of interior cover 208 Long Circle moving contact 209 is housed, two ends of this moving contact 209 respectively have a contact, respectively with two static contact 204 closures; Moving contact 209 has elasticity, and the spiral arm of interior cover 208 also has elasticity, and dual elasticity is given the pressurization of the closure between moving contact 209 and the static contact 204, makes it form good electrical contact; Having provided 6 static contacts 204 on the other hand is the distributing position and the angle at center with the central shaft of knob 206, because present embodiment is made as third gear, Fig. 5 is seen at each grade 60 degree angles that are separated by, so the opereating specification of knob 206 is 120 to spend angles; Because moving contact 209 itself occupies 30 degree angles, so the angular range 150 degree angles of 6 static contacts 204 should deduct 30 degree angles of moving contact 209, the actual converted scope is 120 degree angles, and is consistent with the work angle scope of knob 206.
Figure 12 has provided the electric contact mode of connection, when connecting 450 volts, 300 volts, 150 volts three kinds of different voltages respectively at housing binding post two ends, power supply provides three kinds of different dividing potential drops by resistance R 1, R2 to voltage detection mechanism, thereby realizes the housing binding post is imported the measurement indication of different voltages; In addition, because it is very low to reach the voltage that is born between a plurality of static contacts 204 between the moving contact 209 of electric contact and the static contact 204, electric current is very little, and the number of operations of knob 206 seldom, so the on-off action life-span of the electric contact that knob 206 is driven is very long.
When the voltage table of present embodiment uses, be 380 volts, 220 volts, 127 volts, then this voltage table can be set in 450 volts of shelves, 300 volts of shelves, 150 volts of shelves respectively according to alternating voltage commonly used in China's electric power low-pressure system.
Embodiment two: a kind of needle dc voltmeter, the voltage detection mechanism that comprises procapsid, back casing, surface plate, pointer and driving hand motion, described voltage detection mechanism is electrically connected with binding post on being fixed on housing, the surface plate subscript is shown with nonlinear scale mark, the rectilinear motion adjusting mechanism that also includes display board and cooperate with it, and the electric contact governor motion of interlock, the position that indicates indicating value on the described surface plate has window, the corresponding indicating value that is provided with different amount limits on the described display board, adjacent every group of indicating value equidistantly arranged along the display board moving direction.Wherein, described rectilinear motion adjusting mechanism is a driving lever, and driving lever one end is fixedlyed connected with display board, and display board is spacing by chute, is provided with a plurality of elastic positioning structures in the chute, and each elastic positioning structure matches with each amount limit marker indicating value display position.
Claims (6)
1. needle dc voltmeter, comprise housing, surface plate, the voltage detection mechanism of pointer and driving hand motion, described voltage detection mechanism is electrically connected with binding post on being fixed on housing, the surface plate subscript is shown with scale mark, it is characterized in that: the rectilinear motion adjusting mechanism that also includes display board and cooperate with it, and with the electric contact governor motion of described adjusting mechanism interlock, the position that indicates indicating value on the described surface plate has window, the corresponding indicating value that is provided with different amount limits on the described display board, adjacent every group of indicating value equidistantly arranged along the display board moving direction, and described electric contact governor motion is connected with the corresponding contact of bleeder circuit respectively.
2. needle dc voltmeter according to claim 1 is characterized in that: described rectilinear motion adjusting mechanism is, is fixed with tooth bar on the display board, is provided with and described tooth bar meshed gears, and the outer knob of transmission shaft one end of gear and housing is fixedlyed connected.
3. needle dc voltmeter according to claim 2 is characterized in that: described electric contact governor motion is, is fixed on the spiral arm of the interior cover on the knob moving contact is housed, and a plurality of static contacts of Pei Heing are fixed on the housing with it.
4. according to claim 2 or 3 described needle dc voltmeters, it is characterized in that: the spiral arm of described knob is provided with screw, and corresponding each amount limit marker indicating value display position is provided with the boss nut on the described housing, and described screw cooperates the location with the boss nut.
5. needle dc voltmeter according to claim 1, it is characterized in that: described rectilinear motion adjusting mechanism is a driving lever, driving lever one end is fixedlyed connected with display board, display board is spacing by chute, be provided with a plurality of elastic positioning structures in the chute, each elastic positioning structure matches with each amount limit marker indicating value display position.
6. according to claim 2 or 5 described needle dc voltmeters, it is characterized in that: described rectilinear motion adjusting mechanism is the lengthwise movement adjusting mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520071917 CN2798101Y (en) | 2005-05-25 | 2005-05-25 | Pointer type voltage meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520071917 CN2798101Y (en) | 2005-05-25 | 2005-05-25 | Pointer type voltage meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2798101Y true CN2798101Y (en) | 2006-07-19 |
Family
ID=36869347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520071917 Expired - Fee Related CN2798101Y (en) | 2005-05-25 | 2005-05-25 | Pointer type voltage meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2798101Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105116193A (en) * | 2015-07-23 | 2015-12-02 | 安徽华东光电技术研究所 | Improved circuit for simulating measuring range of pointer meter |
| CN115575695A (en) * | 2022-12-12 | 2023-01-06 | 国网山东省电力公司枣庄供电公司 | Convenient-to-use equipment for measuring electrical variable |
-
2005
- 2005-05-25 CN CN 200520071917 patent/CN2798101Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105116193A (en) * | 2015-07-23 | 2015-12-02 | 安徽华东光电技术研究所 | Improved circuit for simulating measuring range of pointer meter |
| CN115575695A (en) * | 2022-12-12 | 2023-01-06 | 国网山东省电力公司枣庄供电公司 | Convenient-to-use equipment for measuring electrical variable |
| CN115575695B (en) * | 2022-12-12 | 2023-03-14 | 国网山东省电力公司枣庄供电公司 | Convenient-to-use equipment for measuring electrical variable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: NANTONG MULLER ELECTRIC MANUFACTURING CO., LTD Free format text: FORMER OWNER: PU XINGHUA Effective date: 20100723 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 215131 NO.58, LUMUDAFUHAO, SUZHOU CITY, JIANGSU PROVINCE TO: 226017 NO.66, HUANGHE ROAD, NANTONG FARM, JIANGSU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20100723 Address after: 226017 No. 66, the Yellow River Road, Nantong farm, Jiangsu Patentee after: Nantong Jinzhong Muller Electric Manufacturing Co., Ltd. Address before: Suzhou City, Jiangsu province 215131 dafuhao Lumu No. 58 Patentee before: Pu Xinghua |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060719 Termination date: 20120525 |