CN212781168U

CN212781168U - Leakage current testing device convenient to test

Info

Publication number: CN212781168U
Application number: CN202021714892.9U
Authority: CN
Inventors: 何谋; 陈可航; 施雅静
Original assignee: Ciling Technology Fuzhou Co ltd
Current assignee: Ciling Technology Fuzhou Co ltd
Priority date: 2020-08-17
Filing date: 2020-08-17
Publication date: 2021-03-23
Anticipated expiration: 2030-08-17

Abstract

The utility model discloses a leakage current testing device convenient to test, the utility model relates to the technical field of testing devices, the leakage current testing device convenient to test, including shell, probe and ampere meter, the probe is located inside the shell, the lower end of the probe penetrates through the middle of the lower surface of the shell and is connected with the middle of the lower surface of the shell in a sliding way, the ampere meter is fixedly arranged above the shell, the right side inside the shell is rotatably connected with a lead screw, and a motor fixed on the inner wall above the shell is arranged above the lead screw; the beneficial effects of the utility model reside in that: make the probe can reciprocate through first slider, second slider, lead screw and guide arm, be fit for surveying the equipment of multiple type and shape, increase the convenience of use, in the probe retractable keeps off the ring simultaneously, protects the probe through keeping off ring and protective sheath, avoids the probe impaired, stability when increasing the probe touching solder joint through lantern ring and reset spring prevents that the probe from frequently following the solder joint surface landing and leading to the unstable condition of test current to take place.

Description

Leakage current testing device convenient to test

Technical Field

The utility model belongs to the technical field of the testing arrangement technique and specifically relates to a leakage current testing arrangement convenient to test is related to.

Background

The leakage detector can detect the action current of the current type electric shock protector, detect the unbalanced leakage current smaller than the action of the current type electric shock protector, distinguish the leakage voltage harmful to the human body and the induction voltage harmless to the human body, and effectively detect the leakage phenomenon of the electric appliance. However, the current leakage testing device in the market still has defects when in use, for example, when the traditional leakage testing device is used for detecting an electronic instrument, the probe is difficult to adapt to various types and shapes of equipment due to poor flexibility, so that the working efficiency of workers is low, in addition, when the probe is in contact detection with a spherical welding spot in the electronic equipment, the probe is in a water drop shape, and the volume of the welding spot is small, so that the probe frequently slides off from the surface of the welding spot, and the test current is unstable, and furthermore, the probe of the common testing device is lack of corresponding protection, and the probe exposed outside is easy to damage.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the problem that exists and not enough to the aforesaid, a leak current testing arrangement convenient to test is provided, it makes the probe can reciprocate through first slider, the second slider, lead screw and guide arm, be fit for the equipment of surveying multiple type and shape, increase the convenience of use, the probe is retractable simultaneously and is kept off the intra-annular, protect the probe through keeping off ring and protective sheath, avoid the probe impaired, stability when touching the solder joint through the lantern ring and reset spring increase probe, prevent that the probe from frequently leading to the unstable condition of test current from solder joint surface landing and taking place.

In order to achieve the purpose, the adopted technical scheme is as follows:

a leakage current testing device convenient to test comprises a shell, a probe and an ammeter, wherein the probe is positioned in the shell, the lower end of the probe penetrates through the middle of the lower surface of the shell and is in sliding connection with the lower surface of the shell, and the ammeter is fixedly arranged above the shell;

the utility model discloses a probe, including shell, lead screw, motor output end, lead screw, first slider, second slider sliding connection, probe upper end fixedly connected with spring tube, be fixed with insulating cover in the middle of the shell top, the spring tube upper end runs through insulating cover and with the ampere meter links to each other, be fixed with the round in the middle of the shell lower surface and keep off the ring, probe lower extreme fixedly connected with probe.

Preferably, a lead is arranged in the spring tube, and the probe is electrically connected with the ammeter through the lead.

Preferably, the inner diameter of the baffle ring is larger than the outer diameters of the probe and the probe head.

Preferably, keep off ring lower surface left end and bond and have the protective sheath, just the protective sheath is made by silica gel, keep off ring lower surface right-hand member with the protective sheath end all is fixed with magnet, just the protective sheath end with keep off the ring right-hand member and pass through magnet and link to each other.

Preferably, two handles are fixed on the upper side of the front and back surfaces of the shell through screws.

Preferably, four connecting blocks are fixed on the periphery below the probe, the lower ends of the connecting blocks are fixedly connected with return springs, and the lower ends of the return springs are fixedly connected with lantern rings.

By adopting the technical scheme, the beneficial effects are as follows:

1. the probe can be driven to move up and down in the shell through the movement of the first sliding block on the surface of the screw rod and the sliding of the second sliding block on the surface of the guide rod, so that the device is suitable for detecting equipment with various types and shapes, the use convenience and flexibility of the device are greatly improved, when the device is not used, the probe can be retracted into the retaining ring, and the protective sleeve and the retaining ring are connected in an adsorption manner through the magnet, so that the probe is protected, and the probe is prevented from being damaged;

2. cup joint in the solder joint periphery through the lantern ring, reset spring both had played the cushioning effect to the probe, can make the lantern ring in time reset again, greatly increased the stability when the probe touched the solder joint, prevented that the probe from frequently leading to the unstable condition of test current from solder joint surface landing to take place, improved the degree of accuracy of test.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments of the present invention will be briefly described below. The drawings are intended to depict only some embodiments of the invention, and not all embodiments of the invention are limited thereto.

FIG. 1 is a schematic sectional view of the whole front view of the present invention;

FIG. 2 is a schematic diagram of the probe according to the present invention after retraction;

fig. 3 is a schematic view of the overall top-view cross-sectional structure of the present invention;

fig. 4 is a schematic view of the overall bottom plan structure of the present invention;

fig. 5 is an enlarged schematic view of a part a in fig. 1 according to the present invention;

fig. 6 is an enlarged schematic view of a part B of fig. 2 according to the present invention;

fig. 7 is a schematic top view of the cross-sectional structure of the collar of the present invention.

The labels in the figure are: a housing 1; a probe 2; a screw rod 3; a guide rod 4; a motor 5; a first slider 6; a second slider 7; a spring tube 8; an insulating sleeve 9; an ammeter 10; a retainer ring 11; a protective sheath 12; a handle 13; a probe 14; a collar 15; a connecting block 16; a return spring 17; and a magnet 18.

Detailed Description

In order to make the purpose, technical features and technical effects of the technical solution of the present invention clearer, the drawings of the embodiments of the present invention are combined together, and the example solution of the embodiments of the present invention is clearly and completely described.

Referring to fig. 1 to 7, the present invention is a leakage current testing device convenient for testing, which includes a housing 1, a probe 2 and an ammeter 10, wherein the probe 2 is located inside the housing 1, the lower end of the probe 2 penetrates through the middle of the lower surface of the housing 1 and is slidably connected with the lower surface of the housing 1, and the ammeter 10 is fixedly installed above the housing 1;

a screw rod 3 is rotatably connected to the right side inside the shell 1, a motor 5 fixed to the inner wall above the shell 1 is arranged above the screw rod 3, the output end of the motor 5 is connected with the upper end of the screw rod 3, a guide rod 4 is fixedly connected to the left side inside the shell 1, a second slider 7 and a first slider 6 are fixedly connected to the left side and the right side of the probe 2 respectively, the first slider 6 is in threaded connection with the surface of the screw rod 3, the second slider 7 is in sliding connection with the surface of the guide rod 4, a spring tube 8 is fixedly connected to the upper end of the probe 2, an insulating sleeve 9 is fixed in the middle of the upper portion of the shell 1, the upper end of the spring tube 8 penetrates through the insulating sleeve 9 and is connected with an ammeter 10;

a lead is arranged inside the spring tube 8, the probe 2 is electrically connected with the ammeter 10 through the lead, the inner diameter of the baffle ring 11 is larger than the outer diameters of the probe 2 and the probe 14, the left end of the lower surface of the baffle ring 11 is bonded with a protective sleeve 12, the protective sleeve 12 is made of silica gel, the right end of the lower surface of the baffle ring 11 and the tail end of the protective sleeve 12 are both fixed with magnets 18, the tail end of the protective sleeve 12 is connected with the right end of the baffle ring 11 through the magnets 18, two handles 13 are fixed on the upper portion of the front and rear surfaces of the shell 1 through screws, four connecting blocks 16 are fixed on the periphery below the probe 14, the lower ends of the connecting blocks 16 are both fixedly connected with;

specifically, a user connects the motor 5 to an external power supply before using the device, when the device is used, the screw rod 3 is driven to rotate forward or reversely through the forward rotation or reverse rotation of the motor 5, so as to drive the first slider 6 to move up or down on the surface of the screw rod 3, the first slider 6 drives the probe 2 to move up and down, and simultaneously drives the second slider 7 to slide up and down on the surface of the guide rod 4, the guide rod 4 and the second slider 7 play a role in increasing the movement stability of the probe 2, the probe 14 moves up and down along with the probe 2, when the user needs to detect whether the welding spot has leakage current, the probe 14 is aligned with the welding spot, the lantern ring 15 surrounds the welding spot from above the welding spot, then the probe 14 is pressed down slightly, the probe 14 can be buffered when being pressed down through the reset spring 17 until the lower end of the probe 14 touches the surface of the welding spot, and the probe 14 can be stopped, the phenomenon that the probe 14 slides off the surface of a welding spot due to the fact that the contact surface is small, further the phenomena that detection current is unstable, the ampere meter 10 jumps and the like are caused is prevented, after detection, the probe 14 leaves the surface of the welding spot, the return spring 17 enables the lantern ring 15 to return in time, next detection is convenient to conduct, in the detection process, a user can increase the stability of the device in the detection process through holding the handle 13 by hand, and the detection accuracy is further improved;

further, after the device finishes using, the user can drive the lead screw 3 to rotate through the motor 5, thereby driving the probe 2 to retract into the shell 1, and the probe 14 also retracts into the baffle ring 11, and then the user connects the protective sleeve 12 to the right end of the baffle ring 11 through the magnet 18 in an adsorption manner, so that the probe 14 is well protected, and the probe 14 is prevented from being exposed outside and damaged.

In the present specification, each embodiment is described with emphasis on differences from other embodiments, and the same or similar parts between the embodiments may be referred to each other. Unless otherwise defined, technical or scientific terms used in the present embodiments should have the ordinary meaning as understood by those having ordinary skill in the art to which the present invention belongs.

Exemplary embodiments of the present invention have been described in detail with reference to the preferred embodiments, however, it will be understood by those skilled in the art that various modifications and changes may be made to the above specific embodiments without departing from the scope of the present invention, and various combinations of the technical features and structures of the present invention may be implemented without departing from the scope of the present invention, which is defined by the appended claims.

Claims

1. The utility model provides a leakage current testing arrangement convenient to test, includes shell (1), probe (2) and ampere meter (10), its characterized in that:

the probe (2) is positioned in the shell (1), the lower end of the probe (2) penetrates through the middle of the lower surface of the shell (1) and is in sliding connection with the lower surface of the shell, and the ammeter (10) is fixedly arranged above the shell (1);

the right side in the shell (1) is rotatably connected with a screw rod (3), a motor (5) fixed on the inner wall above the shell (1) is arranged above the screw rod (3), the output end of the motor (5) is connected with the upper end of the screw rod (3), the left side in the shell (1) is fixedly connected with a guide rod (4), the left side and the right side of the probe (2) are respectively fixedly connected with a second slider (7) and a first slider (6), the first slider (6) is in threaded connection with the surface of the screw rod (3), the second slider (7) is in sliding connection with the surface of the guide rod (4), the upper end of the probe (2) is fixedly connected with a spring tube (8), an insulating sleeve (9) is fixed in the middle of the upper part of the shell (1), the upper end of the spring tube (8) penetrates through the insulating sleeve (9) and is connected with an ammeter (, the middle of the lower surface of the shell (1) is fixed with a ring of baffle rings (11), and the lower end of the probe (2) is fixedly connected with a probe (14).

2. A leakage current testing device facilitating testing according to claim 1, wherein: the inside wire that is equipped with of spring pipe (8), just probe (2) pass through the wire with ampere meter (10) electric connection.

3. A leakage current testing device facilitating testing according to claim 1, wherein: the inner diameter of the baffle ring (11) is larger than the outer diameters of the probe (2) and the probe (14).

4. A leakage current testing device facilitating testing according to claim 1, wherein: keep off ring (11) lower surface left end and bond and have protective sheath (12), just protective sheath (12) are made by silica gel, keep off ring (11) lower surface right-hand member with protective sheath (12) end all is fixed with magnet (18), just protective sheath (12) end with keep off ring (11) right-hand member and pass through magnet (18) and link to each other.

5. A leakage current testing device facilitating testing according to claim 1, wherein: two handles (13) are fixed on the upper portion of the front surface and the rear surface of the shell (1) through screws.

6. A leakage current testing device facilitating testing according to claim 1, wherein: four connecting blocks (16) are fixed around the lower part of the probe (14), and the lower ends of the connecting blocks (16) are fixedly connected with return springs (17) and four return springs (17) and a lantern ring (15) is fixedly connected with the lower end of each return spring (17).