CN109239430B - Digital multimeter - Google Patents
Digital multimeter Download PDFInfo
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- CN109239430B CN109239430B CN201810995701.1A CN201810995701A CN109239430B CN 109239430 B CN109239430 B CN 109239430B CN 201810995701 A CN201810995701 A CN 201810995701A CN 109239430 B CN109239430 B CN 109239430B
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- machine body
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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
- G01R15/12—Circuits for multi-testers, i.e. multimeters, e.g. for measuring voltage, current, or impedance at will
- G01R15/125—Circuits for multi-testers, i.e. multimeters, e.g. for measuring voltage, current, or impedance at will for digital multimeters
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- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
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Abstract
The invention relates to the technical field of electrical equipment testing, and discloses a digital multimeter which comprises a machine body, a display screen positioned on the upper part of the machine body and a power switch positioned below the display screen, wherein a gear disc positioned below the display screen is arranged in the middle of the machine body, a range switch is arranged in the middle of the gear disc, the machine body is provided with a red meter pen interface and a black meter pen interface which are positioned below the gear disc, the machine body is provided with an anti-falling mechanism used for pressing the red meter pen and the black meter pen, the anti-falling mechanism comprises guide rods symmetrically arranged on two sides of the machine body, and a pressing plate used for preventing the red meter pen and the black meter pen from loosening and positioned between the two guide rods is fixedly arranged on each guide rod, so that the problem that the red meter pen and the black.
Description
Technical Field
The invention relates to the technical field of electrical equipment testing, in particular to a digital multimeter.
Background
Digital multimeters are widely used in the field of electrical measurements, and are also instrumental devices that electricians have in stock. Digital multimeters, sometimes referred to as multimeters or multimeters, are a multi-functional, multi-range electronic measurement instrument that can be used to measure physical quantities such as direct current, voltage, alternating current, voltage, resistance, and the like.
Chinese patent with the publication number CN206387845U discloses a shared measured data's digital multimeter, including organism, display screen, switch and battery, the organism surface is equipped with the display screen, the display screen side is provided with the data storage button, the data storage button side is provided with switch, the switch side is provided with the gear dish, gear dish middle part is provided with the range switch, gear dish side is provided with the red pen incoming end, red pen incoming end side is provided with the black pen incoming end.
The method has the disadvantages that when the digital multimeter is used for measuring physical quantities such as current and voltage of the electrical equipment, one ends of the red and black test pens are required to be inserted into the corresponding access ends, then the range switch is adjusted to the corresponding gear, the test needles of the red and black test pens are contacted with the two ends of the tested element, and the reading on the display screen is the corresponding measured physical quantity. However, when a plurality of groups of tested elements are measured, the red and black test pens inserted into the corresponding access ends are easily loosened or dropped off after being dragged for many times, so that the measurement is inaccurate or interrupted, and the normal use of the digital multimeter is influenced.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a digital multimeter, which solves the problem that red and black test pens of the digital multimeter are easy to loosen and fall off.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a digital multimeter, includes the organism, is located the display screen on organism upper portion and being located switch of display screen below, the organism middle part is equipped with and is located the gear dish of display screen below, gear dish middle part is equipped with the range switch, the organism is equipped with and is located red pen-shape metre interface and black pen-shape metre interface of gear dish below, be equipped with the anti-disengaging mechanism who is used for compressing tightly red pen-shape metre and black pen-shape metre on the organism, anti-disengaging mechanism is in including the symmetry setting the guide bar of organism lateral wall, the fixed being equipped with on the guide bar is used for blockking that red, black pen-shape metre are not hard up and are located two clamp plate between the guide bar.
By adopting the technical scheme, the red and black pens are inserted into the corresponding red pen interface and black pen interface, the range switch is rotated to the corresponding range, the power switch is turned on, and the red and black pens are limited by the pressing plate on the guide rod, so that the red and black pens are respectively fixed on the red pen interface and the black pen interface.
The invention is further provided with: one side of guide bar is equipped with the recess, the both ends of clamp plate are equipped with and are located in recess and sliding connection's connecting block, the one end of connecting block with clamp plate fixed connection, the other end butt in the recess.
Through adopting above-mentioned technical scheme, connecting block and recess sliding connection, when the connecting block slides, can drive the clamp plate and move along the recess direction, adjust the height of clamp plate, carry on spacingly to not the red, black pen-shape metre of co-altitude.
The invention is further provided with: and a spring is fixedly arranged on the inner wall of the groove and fixedly connected with the sliding block.
Through adopting above-mentioned technical scheme, the spring plays flexible effect, and when the height that highly is greater than the clamp plate and locates of red, black pen-shape metre, the clamp plate receives the extrusion and then carries on spacingly to red, black pen-shape metre, fixes the clamp plate through the rebound effect of spring, makes the clamp plate be convenient for adjust fixed.
The invention is further provided with: and the pressing plate is provided with a clamping groove corresponding to the red meter pen interface and the black meter pen interface.
Through adopting above-mentioned technical scheme, when the clamp plate carries on spacingly to red, black pen-shape metre, red pen-shape metre and black pen-shape metre respectively with the draw-in groove butt, make red, the stable fixing of black pen-shape metre on the clamp plate.
The invention is further provided with: the machine body is characterized in that sliding grooves are symmetrically formed in two sides of the machine body, sliding blocks matched with the sliding grooves are arranged in the sliding grooves, and the sliding blocks are rotatably connected with the guide rods.
By adopting the technical scheme, the slide block slides to drive the guide rod to slide on the machine body, so that the press plate is in different horizontal positions, the press plate can conveniently fix the red and black pens on different horizontal positions, when the digital multimeter finishes the detection of the element to be detected, the guide rod is rotated, the fixation of the press plate on the red and black pens can be released,
the invention is further provided with: the guide rod is provided with an insertion hole, one side of the machine body is provided with a slide rail, and the slide rail is provided with an insertion block corresponding to the insertion hole, and the insertion block is connected with the slide rail in a sliding manner.
Through adopting above-mentioned technical scheme, on the guide bar rotated the clamp plate to the position that corresponds with red, black pen-shape metre, promote the inserted block and get into in the jack, make the stable fixing of guide bar on the organism.
The invention is further provided with: the inserted block including the inserted block body and with inserted block body fixed connection's sloping block, the both sides of sloping block are the inclined plane setting, the sloping block with the jack butt.
By adopting the technical scheme, when the insert block is pushed to enter the jack, the insert block can more conveniently enter the jack due to the inclined planes on the two sides of the inclined block, so that the insert block can be quickly abutted against the jack,
the invention is further provided with: and a fastening mechanism for limiting the anti-falling mechanism is arranged at the bottom of the machine body.
The invention is further provided with: the clamping plate is provided with a through hole, the bottom of the machine body is provided with an embedding groove corresponding to the through hole, and the fastening mechanism comprises a round rod penetrating through the embedding groove and a clamping block matched with the through hole.
Through adopting above-mentioned technical scheme, the fixture block on the clamp plate plays the fixed action, makes the clamp plate fix on the organism, when needs the clamp plate to fix red, black pen-shape metre, rotates fixture block to the through-hole position that corresponds, makes in the fixture block gets into the through-hole, and the clamp plate can be followed and taken out on the organism.
The invention is further provided with: the round rod is rotatably connected with the machine body, and the clamping block is fixedly connected with the round rod.
In conclusion, the invention has the following beneficial effects: the pressing plate on the guide rod limits the red meter pen and the meter pen, so that the red meter pen and the meter pen are fixed on the machine body, the digital multimeter is convenient to measure, the baffle is fixed on the machine body through the sliding of the guide rod in the sliding groove and the matching of the fastening mechanism, and the guide rod and the baffle are convenient to store.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic diagram of an overall structure of a digital multimeter provided by an embodiment of the present invention;
FIG. 2 is an enlarged view of FIG. 1 at A;
FIG. 3 is an enlarged view of FIG. 1 at B;
FIG. 4 is a schematic cross-sectional view of a connection between a guide bar and a connection block of a digital multimeter according to an embodiment of the invention.
Reference numerals: 1. a body; 2. a display screen; 3. a power switch; 4. a gear disc; 5. a range switch; 6. a red meter pen interface; 7. a black list pen interface; 8. an anti-drop mechanism; 81. a guide bar; 811. a jack; 812. a groove; 82. pressing a plate; 821. connecting blocks; 822. a card slot; 83. a spring; 9. a fastening mechanism; 91. caulking grooves; 92. a round bar; 93. a clamping block; 10. a through hole; 11. a chute; 12. a slider; 13. a slide rail; 14. inserting a block; 141. an insert block body; 142. and (5) an oblique block.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, or may be communicated with each other inside the two elements, or may be wirelessly connected or wired connected. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Example (b): the utility model provides a digital multimeter, as shown in figure 1, including organism 1, be located the display screen 2 on organism 1 upper portion and be located display screen 2 below switch 3, display screen 2 and organism 1 fixed connection, switch 3 and organism 1 fixed connection, 1 middle part of organism is fixed with gear dish 4 that is located display screen 2 below, gear dish 4 middle part is rotated and is connected with range switch 5, 1 lower part of organism is equipped with red pen-shape metre interface 6 and black pen-shape metre interface 7 that are located gear dish 4 below.
As shown in fig. 1, the side walls of the machine body 1 are provided with sliding grooves 11, and the sliding grooves 11 are slidably connected with sliding blocks 12. The machine body 1 is provided with an anti-falling mechanism 8 for pressing the red meter pen and the black meter pen.
As shown in fig. 1 and 2, the retaining mechanism 8 includes two guide rods 81 located on the side wall of the machine body 1 and a pressing plate 82 located between the two guide rods 81, and the guide rods 81 are rotatably connected to the slide block 12. As shown in fig. 3 and 4, a groove 812 is formed in one side of the guide rod 81, a spring 83 (see fig. 4) is welded on the inner wall of the groove 812, a connecting block 821 is welded on the other end of the spring 83, one end of the connecting block 821 is welded to the pressing plate 82, the other end of the connecting block 821 is abutted to the groove 812, the pressing plate 82 is driven to slide along the direction of the groove 812 through sliding of the connecting block 821, the height of the pressing plate 82 is adjusted, and the red and black pens with different heights can be conveniently fixed.
As shown in fig. 2, in order to fix the guide rod 81 to the machine body 1, one side of the guide rod 81 is provided with an insertion hole 811, one side of the machine body 1 is fixed with a slide rail 13 corresponding to the insertion hole 811, and the slide rail 13 is slidably connected with an insertion block 14 engaged with the insertion hole 811. The insert block 14 includes an insert block body 141 slidably connected to the slide rail 13, an inclined block 142 is welded to the insert block body 141, two sides of the inclined block 142 are inclined, and the inclined block 142 abuts against the insertion hole 811.
As shown in fig. 1, a through hole 10 is opened in the middle of the pressure plate 82, and a fastening mechanism 9 for receiving the pressure plate 82 and the guide rod 81 is provided at the bottom of the machine body 1. The bottom of organism 1 is equipped with caulking groove 91 that corresponds with through-hole 10, and fastening device 9 is including the round bar 92 that is located caulking groove 91, and round bar 92 rotates with organism 1 to be connected, and the welding has on the round bar 92 with through-hole 10 complex fixture block 93, carries out the joint cooperation through fixture block 93 and through-hole 10 on the clamp plate 82, makes the stable fixing on organism 1 of clamp plate 82.
The working principle is as follows: it is red, the gauge pen inserts corresponding red gauge pen interface 6 and black gauge pen interface 7, press switch 3, rotate range switch 5 to the range that corresponds, rotate fixture block 93 to the position with through-hole 10 parallel and level, pulling guide bar 81 to spout 11 bottom, rotate guide bar 81 to clamp plate 82 and red, the position of black gauge pen butt, red, black gauge pen and draw-in groove 822 butt, promote in inserted block 14 gets into jack 811, make stable the fixing on organism 1 of guide bar 81, then measure the measured component. After the detection is finished, the inserting block 14 slides out, the guide rod 81 is rotated and slides to the top end of the sliding groove 11 through the sliding block 12, the clamping block 93 is rotated, and the pressing plate 82 is fixed on the machine body 1.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (6)
1. A digital multimeter comprises a machine body (1), a display screen (2) positioned on the upper portion of the machine body (1) and a power switch (3) positioned below the display screen (2), wherein a gear disc (4) positioned below the display screen (2) is arranged in the middle of the machine body (1), a range switch (5) is arranged in the middle of the gear disc (4), the machine body (1) is provided with a red meter pen interface (6) and a black meter pen interface (7) positioned below the gear disc (4), the digital multimeter is characterized in that an anti-falling mechanism (8) used for pressing the red meter pen and the black meter pen is arranged on the machine body (1), the anti-falling mechanism (8) comprises guide rods (81) symmetrically arranged on two sides of the machine body (1), a pressing plate (82) used for preventing the red meter pen and the black meter pen from loosening and positioned between the guide rods (81) is fixedly arranged on the guide rods (81), one side of guide bar (81) is equipped with recess (812), the both ends of clamp plate (82) are equipped with and are located in recess (812) and sliding connection's connecting block (821), the one end of connecting block (821) with clamp plate (82) fixed connection, the other end butt in recess (812), it is fixed on recess (812) inner wall to be equipped with spring (83), spring (83) with slider (12) fixed connection, be equipped with on clamp plate (82) with red table pen interface (6) reach draw-in groove (822) that black table pen interface (7) correspond, organism (1) bilateral symmetry is equipped with spout (11), be equipped with in spout (11) with spout (11) complex slider (12), slider (12) with guide bar (81) rotate and connect.
2. A digital multimeter as claimed in claim 1, wherein said guide bar (81) is provided with an insertion hole (811), one side of said case (1) is provided with a slide rail (13), said slide rail (13) is provided with an insertion block (14) corresponding to said insertion hole (811), and said insertion block (14) is slidably connected with said case (1).
3. The digital multimeter of claim 2, wherein the plug (14) comprises a plug body (141) and an inclined block (142) fixedly connected with the plug body (141), two sides of the inclined block (142) are arranged in an inclined manner, and the inclined block (142) abuts against the jack (811).
4. A digital multimeter as claimed in claim 3, wherein a bottom of the case (1) is provided with a fastening mechanism (9) for receiving the anti-separation mechanism (8).
5. The digital multimeter of claim 4, wherein the pressure plate (82) is provided with a through hole (10), the bottom of the machine body (1) is provided with a caulking groove (91) corresponding to the through hole (10), and the fastening mechanism (9) comprises a round rod (92) penetrating through the caulking groove (91) and a clamping block (93) matched with the through hole (10).
6. A digital multimeter as claimed in claim 5, wherein said round bar (92) is rotatably connected to said case (1), and said latch (93) is fixedly connected to said round bar (92).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810995701.1A CN109239430B (en) | 2018-08-29 | 2018-08-29 | Digital multimeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810995701.1A CN109239430B (en) | 2018-08-29 | 2018-08-29 | Digital multimeter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109239430A CN109239430A (en) | 2019-01-18 |
| CN109239430B true CN109239430B (en) | 2021-06-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810995701.1A Active CN109239430B (en) | 2018-08-29 | 2018-08-29 | Digital multimeter |
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| CN (1) | CN109239430B (en) |
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| WO2011032012A2 (en) * | 2009-09-11 | 2011-03-17 | Exelon Generation Company, Llc | Electrical terminal test point and methods of use |
| CN202676778U (en) * | 2012-06-14 | 2013-01-16 | 河南省电力公司郑州供电公司 | Multimeter adjustable meter pen fixing device |
| CN202735367U (en) * | 2012-06-06 | 2013-02-13 | 国家电网公司 | Multimeter measuring probe fixing frame |
| CN203859310U (en) * | 2014-03-20 | 2014-10-01 | 温州市华伦电器有限公司 | Socket |
| CN106501569A (en) * | 2016-12-23 | 2017-03-15 | 湖州职业技术学院 | A kind of universal meter for being easy to receive test pencil line |
| CN106556727A (en) * | 2016-11-29 | 2017-04-05 | 国家电网公司 | Circuit tester operation aid |
| CN107328976A (en) * | 2017-08-04 | 2017-11-07 | 深圳市乐业科技有限公司 | A kind of intelligent universal meter for electric power apparatus examination based on Internet of Things |
| CN108196105A (en) * | 2018-02-02 | 2018-06-22 | 长泰品原电子科技有限公司 | A kind of multimeter convenient for placement that there is connector and reinforce |
-
2018
- 2018-08-29 CN CN201810995701.1A patent/CN109239430B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011032012A2 (en) * | 2009-09-11 | 2011-03-17 | Exelon Generation Company, Llc | Electrical terminal test point and methods of use |
| CN202735367U (en) * | 2012-06-06 | 2013-02-13 | 国家电网公司 | Multimeter measuring probe fixing frame |
| CN202676778U (en) * | 2012-06-14 | 2013-01-16 | 河南省电力公司郑州供电公司 | Multimeter adjustable meter pen fixing device |
| CN203859310U (en) * | 2014-03-20 | 2014-10-01 | 温州市华伦电器有限公司 | Socket |
| CN106556727A (en) * | 2016-11-29 | 2017-04-05 | 国家电网公司 | Circuit tester operation aid |
| CN106501569A (en) * | 2016-12-23 | 2017-03-15 | 湖州职业技术学院 | A kind of universal meter for being easy to receive test pencil line |
| CN107328976A (en) * | 2017-08-04 | 2017-11-07 | 深圳市乐业科技有限公司 | A kind of intelligent universal meter for electric power apparatus examination based on Internet of Things |
| CN108196105A (en) * | 2018-02-02 | 2018-06-22 | 长泰品原电子科技有限公司 | A kind of multimeter convenient for placement that there is connector and reinforce |
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| Publication number | Publication date |
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| CN109239430A (en) | 2019-01-18 |
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Effective date of registration: 20230626 Address after: 02-04-32, Changsheng Trade City, No. 277, Heat Source Street, Longfeng District, Daqing City, Heilongjiang Province, 163000 Patentee after: Heilongjiang Shengdali Technology Co.,Ltd. Address before: 518000 2407 Huajia square, Hubei Road, Dongmen street, Luohu District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN BIFADA TECHNOLOGY Co.,Ltd. |
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