CN217443429U

CN217443429U - Universal meter

Info

Publication number: CN217443429U
Application number: CN202220934744.0U
Authority: CN
Inventors: 李丹丹
Original assignee: Heli Guangqiao Intelligent Technology Beijing Co ltd
Current assignee: Heli Guangqiao Intelligent Technology Beijing Co ltd
Priority date: 2022-04-20
Filing date: 2022-04-20
Publication date: 2022-09-16
Anticipated expiration: 2032-04-20

Abstract

The application relates to a universal meter, which comprises a shell and a meter pen, wherein the meter pen is detachably connected with the shell; the meter pen comprises a lead, a pen body, a probe and a threaded sleeve, wherein the threaded sleeve is slidably mounted in the pen body, and the probe is inserted into the pen body from one end of the pen body and is in threaded connection with the threaded sleeve; one end of the lead is inserted into the pen body from the other end of the pen body and is detachably connected with the probe, and the other end of the lead is detachably connected with the shell; the pen body is provided with a connecting hole and a limiting hole, the connecting hole is formed along the length direction of the pen body, and the limiting hole is connected with one end, far away from the probe, of the connecting hole; the threaded sleeve is provided with a connecting rod which enables the threaded sleeve to slide. This application has the effect of strengthening the probe on the protection pen-shape metre.

Description

Universal meter

Technical Field

The application relates to the field of instrument and instrument technologies, in particular to a universal meter.

Background

At present, multimeters are also called as multiplex meters, multi-purpose meters, triple meters, multiple meters and the like, are indispensable measuring instruments for power electronics departments and the like, and generally aim to measure voltage, current and resistance. The universal meter is divided into a pointer universal meter and a digital universal meter according to the display mode, is a multifunctional and multi-range measuring instrument, can measure direct current, direct voltage, alternating voltage, resistance, audio level and the like, and can also measure alternating current, capacitance, inductance, parameters of a semiconductor and the like.

The multimeter comprises a shell and a pen-shape meter, wherein the pen-shape meter is divided into a red pen-shape meter and a black pen-shape meter, the pen-shape meter is connected with the shell, and the pen-shape meter is used for measuring the voltage, the current, the resistance and the like of an object to be measured. The test pen comprises a connecting wire, a pen holder and a metal probe, the existing multimeter and the test pen thereof are usually exposed outside, and the probe is abutted against an object to be measured to be connected during measurement. When the universal meter is not used, a worker winds a wire on the shell, the probe of the meter pen cannot be well protected, the probe is easily damaged, and the measurement of the universal meter is inaccurate.

SUMMERY OF THE UTILITY MODEL

In order to strengthen the probe on the protection pen-shape metre, this application provides a universal meter.

The utility model provides a universal meter adopts following technical scheme:

a multimeter comprises a shell and a meter pen, wherein the meter pen is detachably connected with the shell; the meter pen comprises a lead, a pen body, a probe and a threaded sleeve, wherein the threaded sleeve is slidably mounted in the pen body, and the probe is inserted into the pen body from one end of the pen body and is in threaded connection with the threaded sleeve; one end of the lead is inserted into the pen body from the other end of the pen body and is detachably connected with the probe, and the other end of the lead is detachably connected with the shell; the pen body is provided with a connecting hole and a limiting hole, the connecting hole is formed along the length direction of the pen body, and the limiting hole is connected with one end, far away from the probe, of the connecting hole; the threaded sleeve is provided with a connecting rod which enables the threaded sleeve to slide.

Through adopting above-mentioned technical scheme, the probe can be dismantled with the thread bush and be connected, when needs are measured the measurand object with the universal meter, the movable connecting rod makes the thread bush drive the probe roll-off inside the body of a writing brush, when need not measure, the movable connecting rod makes the thread bush drive the probe and slides into inside the body of a writing brush, lets the probe be in a protected environment, reaches the effect of strengthening the probe on the protection pen-shape metre.

Optionally, be provided with the first reset spring that tail lid and drive probe popped out a body on the body, tail lid is installed in the one end that a body is close to the wire, and with body threaded connection, and first reset spring one end fixed mounting is in the inside one end of tail lid orientation a body, and the other end can be dismantled with the thread bush and be connected.

Through adopting above-mentioned technical scheme, when the probe was in body inside, first reset spring was in compression state, when needs were with probe roll-off body, removed the connecting hole with the connecting rod from spacing hole, and inside first reset spring can pop out the probe body automatically, reached laborsaving effect.

Optionally, the pen body is provided with an installation rod, and the installation rod is slidably installed inside the pen body; one end of the mounting rod is abutted against the first return spring, and the other end of the mounting rod is detachably connected with the probe; the mounting rod is provided with a spiral groove, the spiral groove is formed along the length direction of the pen body, and the conducting wire is placed in the spiral groove.

Through adopting above-mentioned technical scheme, the inner wall of the pen body can place the wire in the helicla flute, can strengthen the stability of wire.

Optionally, a placing groove, a thread block and a thread hole are formed in the mounting hole, and the placing groove is formed in one end, close to the probe, of the mounting rod; the wire hole is formed in the outer wall of the mounting rod and communicated with the placing groove; the wire passes through the line hole and places in the standing groove, and the screw block is installed in the standing groove, extrudes the wire in the standing groove.

Through adopting above-mentioned technical scheme, the extrusion of screw thread piece wire can further strengthen the stability of wire in the standing groove.

Optionally, the pen body is provided with a pen head cover, and the pen head cover is arranged at one end of the pen body close to the probe; a cover plate and a second return spring are arranged in the pen head cover, the cover plate is hinged with the pen head cover, and the arrangement direction of a hinge shaft is vertical to the projection of the length direction of the pen body on the horizontal plane; the second reset spring is positioned at one end of the cover plate far away from the pen body, and a hinged shaft of the second reset spring, the cover plate and the pen head cover is positioned on the inner wall of the same side of the pen head cover; one end of the second reset spring is fixedly connected with the top end of the cover plate, and the other end of the second reset spring is fixedly connected with the pen point cover.

Through adopting above-mentioned technical scheme, when removing a body outside with the probe, apron compression second reset spring, when removing a body inside with the probe, second reset spring resets, rebounds original position with the apron, and the apron can prevent that the dust from entering into a body inside.

Optionally, a fixture block for fixing the pen body is arranged on the outer wall of the shell, and the fixture block is fixedly connected with the shell.

Optionally, a support plate for supporting the housing is arranged on the housing, the support plate is hinged to the housing, and the hinge shaft is horizontally disposed.

Optionally, the mounting rod is made of plastic, and the thread block is made of copper with conductive performance.

In summary, the present application includes at least one of the following beneficial technical effects:

1. after the stylus in the device works, the probe on the stylus slides into the pen body by moving the connecting rod into the limiting hole from the connecting hole, so that the probe is in a protected environment, and the effect of strengthening and protecting the probe on the stylus is achieved;

2. after the probe slides into the body of a pen inside in this device, the apron can prevent that the dust from entering into the body of a pen inside and causing the influence to the probe.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

Fig. 2 is a schematic overall structure diagram of an embodiment of the present application.

Fig. 3 is a structural schematic diagram of a pen in the embodiment of the present application.

FIG. 4 is a schematic view of a pen cap according to an embodiment of the present application.

FIG. 5 is a schematic view of a mounting rod according to an embodiment of the present application.

Fig. 6 is a partial structural schematic diagram of an embodiment of the present application.

Description of reference numerals: 1. a housing; 11. a display screen; 12. a range adjustment button; 13. a zero setting knob; 14. selecting a knob; 15. a surface plate; 16. a clamping block; 17. a support plate; 18. a jack; 2. a meter pen; 21. a wire; 211. a plug; 22. a pen body; 221. connecting holes; 222. a limiting hole; 23. a probe; 24. a threaded sleeve; 241. a connecting rod; 3. a pen head cover; 31. a cover plate; 32. a second return spring; 4. a tail cap; 5. mounting a rod; 51. a helical groove; 52. a placement groove; 53. a wire hole; 54. a thread block; 6. a first return spring.

Detailed Description

The present application is described in further detail below with reference to figures 1-6.

The embodiment of the application discloses a universal meter.

Referring to fig. 1, the multimeter comprises a shell 1 and a meter pen 2, wherein a display screen 11, a range adjusting button 12, a zero setting knob 13, a selection knob 14 and a meter panel 15 are arranged on the shell 1, and the display screen 11, the range adjusting button 12, the zero setting knob 13, the selection knob 14 and the meter panel 15 are all located at the front end of the shell 1. The face plate 15 is fixedly mounted at the center of the case 1. The selection knob 14 is installed at one end of the dial plate 15 far away from the shell 1, and is rotatably connected with the dial plate 15, the rotating shaft is horizontally arranged, and the rotating direction is the rotation of the selection knob 14. The range adjusting button 12 and the zero setting knob 13 are located right above the dial 15 and on the same horizontal plane. The withering knob is rotatably connected with the shell 1, the rotating shaft is horizontally arranged, and the rotating direction is the autorotation of the withering knob. The range adjusting button 12 is fixedly connected with the shell 1. The display screen 11 is located right above the range adjusting button 12 and is fixedly connected with the shell 1.

Referring to fig. 1 and 2, the housing 1 is provided with four sockets, which are located right below the face plate 15, and the four sockets 18 are a COM socket, a V/Ω socket, a mA socket, and a 10A or 20A socket, respectively. The housing 1 is further provided with two clamping blocks 16, the clamping block 16 is a U-shaped clamping block, and the two clamping blocks 16 are respectively located on two opposite side walls of the housing 1 and are fixedly connected with the housing 1. The U-shaped open ends of both the latch blocks 16 face away from the housing 1. The shell 1 is further provided with a supporting plate 17, the supporting plate 17 is located at the rear end of the shell 1 and hinged to the shell 1, and the hinged shaft is horizontally arranged.

Referring to fig. 1, 3 and 4, the pen pointer 2 is divided into a black pen pointer and a red pen pointer, and the black pen pointer and the red pen pointer are identical in size, structure and shape. The meter pen 2 comprises a conducting wire 21, a pen body 22, a probe 23 and a threaded sleeve 24, the pen body 22 is inserted and embedded in the fixture block 16, a pen head cover 3 and a pen tail cover 4 are arranged on the pen body 22, the pen head cover 3 and the pen tail cover 4 are respectively located at two ends of the pen body 22 and are both in threaded connection with the pen body 22. The pen cap 3 is provided with a cover plate 31 and a second return spring 32, and the cover plate 31 and the second return spring 32 are both positioned inside the pen cap 3. The cover plate 31 is horizontally placed, the circumferential wall of the cover plate 31 is abutted to the inner wall of the pen point cover 3, the cover plate 31 is hinged to the pen point cover 3, and the hinge shaft is horizontally placed. The second return spring 32 is located on one side of the cover plate 31 far away from the pen body 22 and located right above the hinge shaft of the cover plate 31 and the pen head cover 3, one end of the second return spring 32 is fixedly connected with the bottom end of the cover plate 31, and the other end of the second return spring is fixedly connected with the inner wall of the pen head cover 3.

Referring to fig. 3, 4 and 5, the pen body 22 is further provided with a first return spring 6 and an installation rod 5, the first return spring 6 is installed at one end of the pen tail cover 4 facing the inside of the pen body 22, one end of the first return spring 6 is fixedly connected with the pen tail cover 4, and the other end of the first return spring faces the inside of the pen body 22. The mounting rod 5 is made of a plastic material without electric conductivity, the mounting rod 5 is placed inside the pen body 22, one end of the mounting rod 5 is abutted against the first return spring 6, and the other end faces the pen head cover 3. The mounting rod 5 is provided with a spiral groove 51, a placing groove 52 and a line hole 53, wherein the spiral groove 51 is formed on the circumferential outer wall of the mounting rod 5 and spirally formed along the length direction of the mounting rod 5. The placement groove 52 is opened at one end of the mounting rod 5 near the cap 3. A line hole 53 is opened on the circumferential outer wall of the mounting rod 5, and the line hole 53 communicates with the placement groove 52. One end of the lead 21 is provided with a plug 211, the plug 211 is inserted and embedded in the jack 18, and the other end of the lead 21 passes through the pen tail cover 4 and the first return spring 6 and is placed in the placing groove 52 through the wire hole 53 by being placed in the spiral groove 51. The mounting rod 5 is provided with a thread block 54, the thread block 54 is made of copper material with good conductivity, the thread block 54 is in threaded connection with the mounting rod 5, and the lead 21 is extruded in the placing groove 52 to fix the lead 21.

Referring to fig. 3 and 5, the pen body 22 is provided with a limiting hole 222 and a connecting hole 221, and both the limiting hole 222 and the connecting hole 221 are located above the mounting rod 5. The connecting hole 221 is formed along the length direction of the pen body 22, the forming direction of the limiting hole 222 is perpendicular to the projection of the forming direction of the connecting hole 221 on the vertical plane, and the limiting hole 222 is located at one end, close to the mounting rod 5, of the connecting hole 221 and is communicated with the connecting hole 221.

Referring to fig. 3, 4 and 6, the threaded sleeve 24 is placed inside the pen body 22 and above the mounting rod 5, and the threaded sleeve 24 is slidably connected with the pen body 22, and the sliding direction is consistent along the length direction of the pen body 22. A connecting rod 241 is arranged on the threaded sleeve 24, one end of the connecting rod 241 is fixedly connected with the threaded sleeve 24, and the other end of the connecting rod 241 penetrates through the connecting hole 221 and is positioned outside the pen body 22. The probe 23 is threaded with the threaded sleeve 24 and abuts the threaded block 54. When the threaded sleeve 24 drives the probe 23 to be completely inserted into the pen body 22, one end of the probe 23 far away from the threaded block 54 is abutted against the bottom end of the cover plate 31.

The implementation principle of the multimeter in the embodiment of the application is as follows: the supporting plate 17 is supported by the shell 1, and the angle at which the worker can conveniently watch the display screen 11 is adjusted. The meter pen 2 is taken down from the fixture block 16, the connecting rod 241 is moved into the connecting hole 221 from the limiting hole 222, the first return spring 6 enables the probe 23 to slide out of the pen body 22, and then the object to be measured is measured. After the measurement is finished, the connecting rod 241 is moved into the limiting hole 222 from the connecting hole 221, and the threaded sleeve 24 drives the probe 23 to move into the pen body 22, so that the probe 23 is protected.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A multimeter, comprising: the pen-type meter comprises a shell (1) and a meter pen (2), wherein the meter pen (2) is detachably connected with the shell (1); the meter pen (2) comprises a lead (21), a pen body (22), a probe (23) and a threaded sleeve (24), the threaded sleeve (24) is slidably mounted inside the pen body (22), and the probe (23) is inserted into the pen body (22) from one end of the pen body (22) and is in threaded connection with the threaded sleeve (24); the lead (21) is inserted into the pen body (22) from the other end of the pen body (22) and is detachably connected with the probe (23); the pen body (22) is provided with a connecting hole (221) and a limiting hole (222), the connecting hole (221) is formed along the length direction of the pen body (22), and the limiting hole (222) is connected with one end, far away from the probe (23), of the connecting hole (221); the threaded sleeve (24) is provided with a connecting rod (241) which enables the threaded sleeve (24) to slide.

2. A multimeter as claimed in claim 1, wherein: be provided with tail cover (4) and drive probe (23) on body of a pen (22) and pop out first reset spring (6) of body of a pen (22), tail cover (4) are installed in body of a pen (22) and are close to the one end of wire (21), and with body of a pen (22) threaded connection, and first reset spring (6) one end fixed mounting is in tail cover (4) towards the inside one end of body of a pen (22), and the other end can be dismantled with thread bush (24) and be connected.

3. A multimeter as claimed in claim 2, wherein: the pen body (22) is provided with an installation rod (5), and the installation rod (5) is installed inside the pen body (22) in a sliding mode; one end of the mounting rod (5) is abutted against the first return spring (6), and the other end of the mounting rod is detachably connected with the probe (23); the mounting rod (5) is provided with a spiral groove (51), the spiral groove (51) is formed along the length direction of the pen body (22), and the lead (21) is placed in the spiral groove (51).

4. A multimeter as claimed in claim 3, wherein: a placing groove (52), a thread block (54) and a thread hole (53) are formed in the mounting rod (5), and the placing groove (52) is formed in one end, close to the probe (23), of the mounting rod (5); the line hole (53) is formed in the outer wall of the mounting rod (5) and communicated with the placing groove (52); the lead (21) is placed in the placing groove (52) through the wire hole (53), the thread block (54) is installed in the placing groove (52), and the lead (21) is pressed in the placing groove (52).

5. A multimeter as claimed in claim 1, wherein: the pen body (22) is provided with a pen head cover (3), and the pen head cover (3) is arranged at one end of the pen body (22) close to the probe (23); a cover plate (31) and a second reset spring (32) are arranged in the pen head cover (3), the cover plate (31) is hinged with the pen head cover (3), and the arrangement direction of a hinge shaft is vertical to the projection of the length direction of the pen body (22) on the horizontal plane; the second return spring (32) is positioned at one end of the cover plate (31) far away from the pen body (22), and a hinge shaft of the second return spring and the cover plate (31) and the pen head cover (3) is positioned on the inner wall of the same side of the pen head cover (3); one end of the second reset spring (32) is fixedly connected with the top end of the cover plate (31), and the other end of the second reset spring is fixedly connected with the pen head cover (3).

6. A multimeter as claimed in claim 1, wherein: a fixture block (16) for fixing the pen body (22) is arranged on the outer wall of the shell (1), and the fixture block (16) is fixedly connected with the shell (1).

7. A multimeter as claimed in claim 1, wherein: the shell (1) is provided with a supporting plate (17) used for supporting the shell (1), the supporting plate (17) is hinged with the shell (1), and a hinged shaft is horizontally arranged.

8. A multimeter as claimed in claim 4, wherein: the mounting rod (5) is made of plastic materials, the thread block (54) is made of copper and has conductive performance, and the plastic mounting rod (5) is made of plastic materials.