CN110887986A

CN110887986A - Universal meter for improving measurement precision

Info

Publication number: CN110887986A
Application number: CN201911370314.XA
Authority: CN
Inventors: 张国民; 朱同鑫; 刘畅
Original assignee: Suzhou Huicheng Power Testing Co Ltd
Current assignee: Suzhou Huicheng Power Testing Co Ltd
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2020-03-17

Abstract

The invention is suitable for the technical field of multimeters, and provides a multimeter for improving the measurement accuracy, which comprises a meter body mechanism, a protection mechanism and a wiring mechanism, wherein the meter body mechanism comprises a shell, a display screen, an adjusting knob dustproof plug, a winding rod, a limiting rod and a positioning sleeve, the protection mechanism comprises a protection sleeve, the wiring mechanism comprises at least two connecting wires, a detachable dustproof plug is arranged in a wiring hole, a waterproof pad for providing dustproof and waterproof functions is arranged on the meter pen, so that the dustproof and waterproof functions are realized by using the waterproof pad when the wiring hole is used, when the wiring hole is not used, the dustproof and waterproof functions are realized by using the dustproof plug, the winding rod with the limiting rod is arranged, the connecting wire is wound on the winding rod to accommodate the winding rod, the positioning sleeve for inserting the meter pen is arranged on the shell, so that the meter pen can be fixed through the positioning sleeve, the invention has the characteristics of good dustproof and waterproof effects and capability of improving the measurement accuracy.

Description

Universal meter for improving measurement precision

Technical Field

The invention belongs to the technical field of multimeters, and particularly relates to a multimeter capable of improving measurement accuracy.

Background

Multimeters, also known as multiplex meters, multi-purpose meters, triple meters, multi-purpose meters, etc., are indispensable measurement instruments for power electronics and other departments, and generally aim to measure voltage, current and resistance. The multimeter is divided into a pointer multimeter and a digital multimeter according to the display mode. The universal meter can measure direct current, direct voltage, alternating current, alternating voltage, resistance, audio level and the like, and can also measure alternating current, capacitance, inductance and some parameters of a semiconductor.

The existing ordinary multimeter body is provided with 4 plug wire holes, and the plug of a multimeter red meter pen needs to be replaced when different parameters are measured. The multimeter with the plug wire hole has the problems that dust, sundries, a meter pen copper wire are easy to break and the like through the plug hole, and the service life and the measurement accuracy of the multimeter are influenced.

Disclosure of Invention

The invention provides a multimeter capable of improving measurement accuracy, and aims to solve the problems that dust, sundries, a meter pen copper wire and the like enter a jack part of the multimeter with a plug wire hole and the service life and the measurement accuracy of the multimeter are affected.

The invention is realized in this way, a multimeter for improving the measurement accuracy, comprising a meter body mechanism, a protection mechanism and a wiring mechanism;

the meter body mechanism comprises a shell, a display screen, an adjusting knob dustproof plug, a winding rod, a limiting rod and a positioning sleeve, wherein the display screen and the adjusting knob are arranged on the upper surface of the shell, a plurality of wiring holes are also formed in the upper surface of the shell, the dustproof plug is detachably mounted in the wiring holes, the winding rod is provided with two cuts which are respectively positioned on two side walls of the shell, one end of the winding rod is fixedly connected with the shell, the other end of the winding rod is fixedly provided with the limiting rod, and two side walls of the shell are respectively fixedly provided with the positioning sleeve;

the protection mechanism comprises a protection sleeve, and a first through hole for the winding rod to pass through and a second through hole for the positioning sleeve to pass through are formed in the protection sleeve;

the wiring mechanism comprises at least two connecting wires, a meter pen is fixed at each of two ends of each connecting wire, the meter pen is matched with the wiring hole, and a waterproof pad is fixed on the meter pen.

Preferably, the watch body mechanism further comprises a hook, wherein the hook is located at one end of the shell and one end of the hook is fixedly connected with the outer wall of the shell.

Preferably, the dustproof plug is provided with an inserting rod and a knob which are matched with the wiring hole, and the knob and the inserting rod are oppositely arranged on two side surfaces of the dustproof plug.

Preferably, the bottom of the protective sleeve is fixed with two magnetic stripes, and the two magnetic stripes are arranged in parallel.

Preferably, the protection mechanism further comprises an auxiliary plate fixed on the lower surface of the protection sleeve, and a plurality of finger holes are formed in the auxiliary plate.

Preferably, the finger hole is a circular hole, and a non-slip mat is fixed on the inner surface of the finger hole.

Preferably, the two side walls of the protective sleeve are provided with holding grooves, and the holding grooves are S-shaped grooves.

Preferably, two ends of the connecting wire are respectively fixed with a rubber sleeve, and the rubber sleeves are positioned at the connecting part of the meter pen and the connecting wire.

Compared with the prior art, the invention has the beneficial effects that: according to the multimeter for improving the measurement precision, the detachable dustproof plug is arranged in the wiring hole, the waterproof pad for providing the dustproof and waterproof functions is arranged on the pen-shape meter, so that the waterproof pad is used for preventing dust and water when the wiring hole is used, the dustproof and waterproof functions are provided by the dustproof plug when the wiring hole is not used, the winding rod with the limiting rod is arranged, the winding rod is used for winding the connecting wire on the winding rod to accommodate the winding rod when the connecting wire is not used, and the pen-shape meter can be fixed through the positioning sleeve by arranging the positioning sleeve for inserting the pen-shape meter on the shell.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic structural view of the protective sheath of the present invention.

Fig. 3 is a schematic structural diagram of the housing of the present invention.

Fig. 4 is a schematic structural diagram of the connecting wire of the present invention.

Figure 5 is a side view of a protective sheath of the present invention.

Fig. 6 is a schematic structural view of the dust plug of the present invention.

In the figure: 1-meter body mechanism, 11-shell, 12-display screen, 13-adjusting knob, 14-wiring hole, 15-dustproof plug, 151-inserted bar, 152-knob, 16-winding bar, 17-limiting bar, 18-locating sleeve, 19-hook, 2-protection mechanism, 21-protective sleeve, 22-holding groove, 23-magnetic stripe, 24-first through hole, 25-second through hole, 26-auxiliary plate, 27-finger hole, 28-non-slip pad, 3-wiring mechanism, 31-connecting wire, 32-meter pen, 33-rubber sleeve and 34-waterproof pad.

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.

Referring to fig. 1-6, the present invention provides a technical solution: a multimeter capable of improving measurement accuracy comprises a meter body mechanism 1, a protection mechanism 2 and a wiring mechanism 3.

Watch body mechanism 1 includes casing 11, display screen 12, adjust knob 13 dust plug 15, wire wrapping rod 16, gag lever post 17, position sleeve 18 and couple 19, display screen 12, all according to casing 11's upper surface with adjust knob 13, a plurality of wiring holes 14 have still been seted up to casing 11's upper surface, dust plug 15 detachable installs in wiring hole 14, wire wrapping rod 16 is provided with two and cuts and is located casing 11's both sides wall respectively, dust plug 15 has an inserted bar 151 and a knob 152 with wiring hole 14 assorted, knob 152 and inserted bar 151 set up the both sides face at dust plug 15 relatively, the one end fixed connection casing 11 of wire wrapping rod 16, the other end of wire wrapping rod 16 is fixed with a gag lever post 17, be fixed with a position sleeve 18 on casing 11's the both sides wall respectively, couple 19 is located casing 11's one end and the outer wall of couple 19 one end fixed connection casing 11.

Casing 11 is the universal meter body, and display screen 12 is used for showing the measured value, and adjust knob 13 is used for opening and closing the universal meter, and be used for adjusting measurement mode, wiring hole 14 is used for connecting pen-shape metre 32, and dustproof stopper 15 is used for sealed wiring hole 14 that does not use, and dustproof stopper 15 passes through inserted bar 151 to be fixed in wiring hole 14, and control through knob 152, conveniently inserts and extracts inserted bar 151, thereby can reduce outside dust and debris entering wiring hole 14, promote measuring accuracy. The winding rod 16 is used for winding the connecting wire 31 for a user, the limiting rod 17 is of a U-shaped structure and is used for limiting the wound connecting wire 31, so that the connecting wire is prevented from falling off, two slots are formed in each locating sleeve 18, and the meter pen 32 is fixed on the locating sleeves through the slots. The hook 19 can facilitate a user to place the multimeter, so that the universal meter can adapt to more use environments, the shell 11 is provided with a convex block at the other end, and the convex block is embedded into the positioning sleeve 18 when the positioning sleeve 18 is installed, so that the structural stability of the positioning sleeve 18 is improved.

The protection mechanism 2 comprises a protection sleeve 21 and an auxiliary plate 26, a first through hole 24 for the winding rod 16 to pass through and a second through hole 25 for the positioning sleeve 18 to pass through are formed in the protection sleeve 21, two magnetic stripes 23 are fixed to the bottom of the protection sleeve 21 and are arranged in parallel, the auxiliary plate 26 is fixed to the lower surface of the protection sleeve 21, a plurality of finger holes 27 are formed in the auxiliary plate 26, the finger holes 27 are round holes, anti-slip pads 28 are fixed to the inner surfaces of the finger holes 27, holding grooves 22 are formed in two side walls of the protection sleeve 21, and the holding grooves 22 are S-shaped grooves.

Protection mechanism 2 is used for providing the protection to table body mechanism 1, protective sheath 21 can provide effectual shock attenuation to casing 11, when the user installed protective sheath 21 on casing 11, pass protective sheath 21 with winding bar 16 through first through-hole 24, pass protective sheath 21 with position sleeve 18 through second through-hole 25, the one end of protective sheath 21 has still been seted up and has been supplied couple 19 to pass the third through-hole, and winding bar 16 simultaneously, position sleeve 18 and couple 19 can be spacing protective sheath 21, reduce the risk that protective sheath 21 drops. The magnetic stripe 23 is used for the user to pass through magnetic stripe 23 with the universal meter when fixed universal meter and adsorbs protective sheath 21 on the metal, convenient operation. Protective sheath 21 adopts rubber materials to make, and the installation is dismantled conveniently to auxiliary plate 26 is fixed through bonding with protective sheath 21, and the quantity of finger hole 27 is four, and the user can put into auxiliary plate 26 with the finger through the finger hole, thereby more stable casing 11 that grips, slipmat 28 can increase the frictional force of finger and the inner wall of finger hole 27, thereby further promote and grip stability. The grip groove 22 can also improve grip stability.

The wiring mechanism 3 comprises at least two connecting wires 31, wherein two ends of each connecting wire 31 are respectively fixed with a meter pen 32, each meter pen 32 is matched with the wiring hole 14, a waterproof pad 34 is fixed on each meter pen 32, two ends of each connecting wire 31 are respectively fixed with a rubber sleeve 33, and each rubber sleeve 33 is positioned at the joint of each meter pen 32 and each connecting wire 31.

Wiring mechanism 3 is used for connecting multimeter and awaiting measuring equipment, and the pen-shape metre 32 on two connecting wire 31 is red pen-shape metre and black pen-shape metre respectively, and the pen-shape metre 32 passes through wiring hole 14 and connects the table body to rubber sleeve 33 can increase user control pen-shape metre 32's stability, and waterproof pad 34 adopts waterproof rubber ring, thereby behind the installation pen-shape metre 32, can provide dustproof and waterproof function to wiring hole 14 simultaneously.

The invention relates to a multimeter for improving measurement accuracy, a user installs a protective sleeve 21 on a shell 11, a winding rod 16 passes through the protective sleeve 21 through a first through hole 24, a positioning sleeve 18 passes through the protective sleeve 21 through a second through hole 25, a meter pen 32 is connected with a meter body through a wiring hole 14, meanwhile, a waterproof pad 34 is used for providing dustproof and waterproof functions for the wiring hole 14, corresponding measurement is carried out through a connecting lead 31 and the meter pen 32, the unused wiring hole 14 is sealed by a dustproof plug 15, the dustproof plug 15 is fixed in the wiring hole 14 through an insertion rod 151 and is controlled by a knob 152, the insertion rod 151 is conveniently inserted and pulled out, thereby external dust and sundries can be reduced from entering the wiring hole 14, the measurement accuracy is improved, after the measurement is finished, all the wiring holes are sealed by the dustproof plug 15, the connecting lead 31 is wound on the winding rod 16, the meter pen 32 is inserted into the positioning sleeve 18 to fix the meter pen 32, thereby receiving the connecting wires.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides an improve measurement accuracy's universal meter which characterized in that: comprises a meter body mechanism (1), a protection mechanism (2) and a wiring mechanism (3);

the watch body mechanism (1) comprises a shell (11), a display screen (12), an adjusting knob (13), a dustproof plug (15), a winding rod (16), a limiting rod (17) and a positioning sleeve (18), wherein the display screen (12) and the adjusting knob (13) are arranged on the upper surface of the shell (11), a plurality of wiring holes (14) are further formed in the upper surface of the shell (11), the dustproof plug (15) is detachably mounted in the wiring holes (14), the winding rod (16) is provided with two notches which are respectively positioned on two side walls of the shell (11), one end of the winding rod (16) is fixedly connected with the shell (11), the other end of the winding rod (16) is fixedly provided with the limiting rod (17), and the two side walls of the shell (11) are respectively fixedly provided with the positioning sleeve (18);

the protection mechanism (2) comprises a protection sleeve (21), and a first through hole (24) for the winding rod (16) to pass through and a second through hole (25) for the positioning sleeve (18) to pass through are formed in the protection sleeve (21);

wiring mechanism (3) are including two at least connecting wire (31), the both ends of connecting wire (31) are fixed with a pen-shape metre (32) respectively, pen-shape metre (32) with wiring hole (14) phase-match, be fixed with waterproof pad (34) on pen-shape metre (32).

2. A multimeter having improved measurement accuracy as defined in claim 1, wherein: the watch body mechanism (1) further comprises a hook (19), wherein the hook (19) is located at one end of the shell (11) and one end of the hook (19) is fixedly connected with the outer wall of the shell (11).

3. A multimeter having improved measurement accuracy as defined in claim 1, wherein: the dustproof plug (15) is provided with an inserting rod (151) and a knob (152) which are matched with the wiring hole (14), and the knob (152) and the inserting rod (151) are oppositely arranged on two side surfaces of the dustproof plug (15).

4. A multimeter having improved measurement accuracy as defined in claim 1, wherein: the bottom of protective sheath (21) is fixed with two magnetic stripes (23), two magnetic stripe (23) are mutual parallel arrangement.

5. A multimeter having improved measurement accuracy as defined in claim 1, wherein: the protection mechanism (2) further comprises an auxiliary plate (26), the auxiliary plate (26) is fixed on the lower surface of the protection sleeve (21), and a plurality of finger holes (27) are formed in the auxiliary plate (26).

6. An improved measurement accuracy multimeter as recited in claim 5, wherein: the finger holes (27) are round holes, and anti-skid pads (28) are fixed on the inner surfaces of the finger holes (27).

7. A multimeter having improved measurement accuracy as defined in claim 1, wherein: the two side walls of the protective sleeve (21) are provided with holding grooves (22), and the holding grooves (22) are S-shaped grooves.

8. A multimeter having improved measurement accuracy as defined in claim 1, wherein: and two ends of the connecting wire (31) are respectively fixed with a rubber sleeve (33), and the rubber sleeve (33) is positioned at the joint of the meter pen (32) and the connecting wire (31).