CN214623015U

CN214623015U - Mutual inductor tester with terminal protection

Info

Publication number: CN214623015U
Application number: CN202120815671.9U
Authority: CN
Inventors: 丁凡; 章大双
Original assignee: Wuhan Security Inspection Electric Co ltd
Current assignee: Wuhan Security Inspection Electric Co ltd
Priority date: 2021-04-20
Filing date: 2021-04-20
Publication date: 2021-11-05
Anticipated expiration: 2031-04-20

Abstract

The utility model discloses a mutual inductor tester with terminal protection, including the mutual inductor tester body, the mutual inductor tester body includes casing, cap and tester main part, the tester body is installed in the inside of casing, the cap movable mounting is in the upper end of casing, install mobilizable protection component on the cap, one side of protection component installs the display screen, install the mounting panel between tester main part and the casing, the inside of terminal sets up elastic fixture; the utility model discloses mainly be at the elastic fixture of internally mounted of terminal, when pegging graft with the connector of connecting wire, increase the compactness of laminating between connector and the terminal through fixture to increase the electric conductivity of terminal and connector, after inserting and pulling out many times, fixture is difficult for appearing damaging, increases the electric conductivity of connector and terminal to a certain extent.

Description

Mutual inductor tester with terminal protection

Technical Field

The utility model relates to a mutual-inductor tester technical field specifically is a mutual-inductor tester with terminal protection.

Background

The instrument transformer tester adopts an indirect method to analyze the mathematical model of the instrument transformer in detail to develop an instrument transformer field test instrument, and the test result depends on the accuracy of the equivalent model and the accuracy of each parameter measurement. Mutual-inductor tester need pass through the connecting wire with mutual-inductor tester and mutual-inductor electric connection when using, for the access of connecting wire, the terminal setting of general mutual-inductor tester is in the outside of casing, however, the terminal sets up when the mutual-inductor tester of outside is connecting the use, because of the inside no fixture of terminal, terminal and connector can appear becoming flexible after plug many times, influence the electric conductivity of connector and terminal, and the terminal majority of current mutual-inductor tester does not protect the terminal, externally through exposing for a long time, can lead to the dust deposit in the air in the inside of terminal, reduce the electric conductivity of terminal inner wall, therefore we need to provide a mutual-inductor tester with terminal protection.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a mutual-inductor tester with terminal protection, the terminal that uses through having elasticity fixture and protection component's cooperation, protects the terminal through protection component when not using, when using, increases the electric conductivity between terminal and the connector lug through elasticity fixture to solve the current mutual-inductor tester that provides in the background art because of not having the poor problem of electric conductivity that next half year holding mechanism and protection component lead to.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a mutual-inductor tester with terminal protection, includes the mutual-inductor tester body, the mutual-inductor tester body includes casing, cap and tester main part, the inside at the casing is installed to the tester body, cap movable mounting is in the upper end of casing, install mobilizable protection component on the cap, the display screen is installed to one side of protection component, install the mounting panel between tester main part and the casing, the upper surface of mounting panel is provided with switch, power connection and detachable terminal respectively, the inside of terminal is provided with elastic fixture.

Preferably, the protection component comprises an L-shaped baffle, the transverse plate of the baffle is connected with the inside of the shell cover in a sliding manner, the two sides of the vertical plate of the baffle are respectively fixed with a sliding block, one side of the shell cover is provided with a through hole for the vertical plate of the baffle to slide, and the side wall of the through hole is respectively provided with a sliding groove for the transverse plate of the baffle and the two sliding blocks to slide.

Preferably, one side of the shell cover is rotatably connected with the side wall of one side of the shell through a hinge, the other side of the shell cover is fixedly connected with the side wall of the other side of the shell through a hasp, and the wiring terminal, the switch and the power supply connector are all located below the baffle.

Preferably, fixture includes two circular shape metal sheets and an elastic sheetmetal, two connect fixedly through six at least metal connecting rods between the metal sheet, and adjacent two be provided with curved shell fragment between the connecting rod, be connected through elastic component between shell fragment and the connecting rod, the one end and the upper end metal sheet fixed connection of shell fragment, and the upper end the metal sheet sets up to the ring plate shape, the sheetmetal is installed on the lower extreme metal sheet.

Preferably, the elastic assembly comprises an arc-shaped connecting block and a clamping block, two ends of the connecting block are respectively fixed to one side of each of two adjacent connecting rods, one side of the clamping block is fixedly connected with one side of the connecting block through a second compression spring, the other side of the clamping block is in an arc-shaped arrangement, and the other side of the clamping block is attached to one side of the elastic sheet.

Preferably, the side wall of the metal sheet is integrally formed with a protrusion, the protrusion is located between two adjacent elastic sheets, the side wall of the protrusion is attached to the side walls of the two adjacent elastic sheets, the lower end of the metal sheet is fixedly connected with the lower end metal plate through a first compression spring, and a wire is fixed at the lower end of the metal plate.

Preferably, the clamping mechanism further comprises a circular bottom plate, the bottom plate is embedded in the lower end of the mounting plate through bolts, the lower end of the mounting plate is provided with a yielding hole for the lead to penetrate through, and the upper end of the bottom plate is fixedly connected with the lower end of the lower-end metal plate.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses mainly be at the elastic fixture of internally mounted of terminal, when pegging graft with the connector of connecting wire, increase the compactness of laminating between connector and the terminal through fixture to increase the electric conductivity of terminal and connector, after inserting and pulling out many times, fixture is difficult for appearing damaging, increases the electric conductivity of connector and terminal to a certain extent.

2. The utility model discloses mobilizable protective assembly of installation on the cap, when the terminal uses, be convenient for connecting wire and being connected of mutual-inductor tester body through removing protective assembly, convenient to use when the terminal does not use, protects switch, power connection and terminal on the mounting panel through protective assembly, reduces outside dust deposit in the inside of terminal, improves the electric conductivity of terminal inner wall to a certain extent.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic sectional structure of the present invention;

FIG. 3 is an enlarged view of the structure at A in FIG. 2;

fig. 4 is a schematic view of the internal structure of the binding post of the present invention.

In the figure: 1. a transformer tester body; 101. a housing; 102. a shell cover; 103. a tester main body; 2. a baffle plate; 3. a slider; 4. a binding post; 401. a base plate; 402. a metal plate; 403. a spring plate; 404. a metal sheet; 5. a power supply connector; 6. mounting a plate; 7. a switch; 8. a chute; 9. a display screen; 10. a wire; 11. a first compression spring; 12. connecting blocks; 13. a clamping block; 14. a second compression spring; 15. a connecting rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a mutual inductor tester with terminal protection comprises a mutual inductor tester body 1, wherein the mutual inductor tester body 1 comprises a shell 101, a shell cover 102 and a tester main body 103, the tester body is installed inside the shell 101, the shell cover 102 is movably installed at the upper end of the shell 101, a movable protective component is installed on the shell cover 102, a display screen 9 is installed on one side of the protective component, an installation plate 6 is installed between the tester main body 103 and the shell 101, a switch 7, a power connector 5 and a detachable terminal 4 are respectively arranged on the upper surface of the installation plate 6, and an elastic clamping mechanism is arranged inside the terminal 4;

when the connector is inserted into the connector of the connecting line, the tightness of the fit between the connector and the binding post 4 is increased through the clamping mechanism, so that the electrical conductivity of the binding post 4 and the connector is increased, the clamping mechanism is not easy to damage after multiple times of insertion and pulling, and the electrical conductivity of the connector and the binding post is increased to a certain extent;

the protective component comprises an L-shaped baffle 2, a transverse plate of the baffle 2 is in sliding connection with the inside of the shell cover 102, two sides of a vertical plate of the baffle 2 are respectively fixed with a sliding block 3, one side of the shell cover 102 is provided with a through hole for the vertical plate of the baffle 2 to slide, and the side wall of the through hole is respectively provided with a sliding chute 8 for the transverse plate of the baffle 2 and the two sliding blocks 3 to slide;

one side of the shell cover 102 is rotatably connected with the side wall of one side of the shell 101 through a hinge, the other side of the shell cover 102 is fixedly connected with the side wall of the other side of the shell 101 through a hasp, and the wiring terminal 4, the switch 7 and the power supply connector 5 are all positioned below the baffle 2, so that the wiring terminal 4, the switch 7 and the power supply connector 5 are completely shielded through the baffle 2, and external dust deposition in the wiring terminal 4 is reduced;

the clamping mechanism comprises two circular metal plates 402 and an elastic metal sheet 404, the two metal plates 402 are fixedly connected through at least six metal connecting rods 15, arc-shaped elastic sheets 403 are arranged between every two adjacent connecting rods 15, the elastic sheets 403 are connected with the connecting rods 15 through elastic components, one end of each elastic sheet 403 is fixedly connected with the upper end metal plate 402, the upper end metal plate 402 is in a ring plate shape, the metal sheets 404 are arranged on the lower end metal plate 402, the number of the elastic sheets 403 is at least five, after multiple times of insertion and pulling, the probability of one-time total damage of the elastic sheet components is low, and as long as at least one elastic component is intact, a certain tightness of the joint between other elastic sheets 403 and the connector can be correspondingly increased, so that the conductivity of the connector and the binding post 4 is increased;

the elastic assembly comprises an arc-shaped connecting block 12 and a clamping block 13, two ends of the connecting block 12 are respectively fixed with one side of two adjacent connecting rods 15, one side of the clamping block 13 is fixedly connected with one side of the connecting block 12 through a second compression spring 14, the other side of the clamping block 13 is arranged in an arc shape, the other side of the clamping block 13 is attached to one side of the elastic sheet 403, the second compression spring 14 drives the clamping block 13 to move by utilizing the resilience of the second compression spring 14, the attaching tightness between the elastic sheet 403 and the outer wall of the connecting head is increased by the moving thrust of the clamping block 13, and therefore the electric conductivity between the elastic sheet 403 and the connecting head is improved;

the side wall of the metal sheet 404 is integrally formed with a protrusion, the protrusion is positioned between two adjacent elastic sheets 403, the side wall of the protrusion is attached to the side walls of the two adjacent elastic sheets 403, the lower end of the metal sheet 404 is fixedly connected with the lower end metal plate 402 through a first compression spring 11, the lower end of the lower end metal plate 402 is fixedly provided with a lead 10, and the attaching tightness of the metal sheet 404 and one end of a connector of a connecting line is increased by utilizing the resilience of the first compression spring 11, so that the conductivity between the metal sheet 404 and the connector is increased to a certain extent;

the clamping mechanism further comprises a circular bottom plate 401, the bottom plate 401 is embedded at the lower end of the mounting plate 6 through bolts, the lower end of the mounting plate 6 is provided with a abdicating hole for the lead 10 to penetrate through, the upper end of the bottom plate 401 is fixedly connected with the lower end of the lower end metal plate 402, the bottom plate 401 can be separated from the mounting plate 6 through disassembling the bolts, and replacement is facilitated when the wiring terminal 4 is damaged;

when in use, the transverse plate of the baffle plate 2 is pushed into the shell cover 102 through the vertical plate of the baffle plate 2, so that the wiring terminal 4, the switch 7 and the power connector 5 are exposed, the connection of a connecting wire can be carried out without opening and closing the shell cover 102, the use is convenient, the connector of the connecting wire is inserted into the interior of the wiring terminal 4, the outer wall of the arc-shaped part connector of the elastic sheet 403 is attached, the metal sheet 404 is attached to one end of the connector, the attaching tightness between the elastic sheet 403 and the metal sheet 404 and the connector is increased by utilizing the resilience of the first compression spring 11 and the resilience of the second compression spring 14, so that the electrical conductivity between the connector and the elastic sheet 403 and the metal sheet 404 is increased, at least five elastic sheets 403 are arranged, after multiple times of insertion and pulling, the probability of one-time total damage of the elastic sheet assemblies is low, as long as at least one elastic assembly is intact, certain attaching tightness between other elastic sheets 403 and the connector can be correspondingly increased, thereby increasing the conductivity of the connector and the binding post 4;

when not using, pull out the horizontal board of baffle 2 from cap 102, make baffle 2 shelter from terminal 4, switch 7 and power connection 5 are whole, reduce outside dust deposit in the inside of terminal 4 through baffle 2, be convenient for protect terminal 4, improve the electric conductivity of terminal inner wall to a certain extent.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a mutual-inductor tester with terminal protection, includes mutual-inductor tester body (1), its characterized in that: mutual-inductor tester body (1) includes casing (101), cap (102) and tester main part (103), the inside at casing (101) is installed to the tester body, cap (102) movable mounting is in the upper end of casing (101), install mobilizable protective assembly on cap (102), display screen (9) are installed to one side of protective assembly, install mounting panel (6) between tester main part (103) and casing (101), the upper surface of mounting panel (6) is provided with switch (7), power connection (5) and detachable terminal (4) respectively, the inside of terminal (4) is provided with elastic fixture.

2. The instrument transformer tester with terminal protection according to claim 1, wherein: the protection assembly comprises an L-shaped baffle (2), a transverse plate of the baffle (2) is connected with the inner part of the shell cover (102) in a sliding mode, sliding blocks (3) are fixed to two sides of the vertical plate of the baffle (2) respectively, a through hole for enabling the baffle (2) to vertically slide is formed in one side of the shell cover (102), and sliding chutes (8) for enabling the transverse plate of the baffle (2) and the two sliding blocks (3) to slide are formed in the side wall of the through hole respectively.

3. The instrument transformer tester with terminal protection according to claim 2, wherein: one side of the shell cover (102) is rotatably connected with the side wall of one side of the shell body (101) through a hinge, the other side of the shell cover (102) is fixedly connected with the side wall of the other side of the shell body (101) through a buckle, and the wiring terminal (4), the switch (7) and the power connector (5) are all located below the baffle (2).

4. The instrument transformer tester with terminal protection according to claim 1, wherein: fixture includes two circular shape metal sheet (402) and an elastic sheetmetal (404), two connect fixedly through six at least metal connecting rods (15) between metal sheet (402), and adjacent two be provided with curved shell fragment (403) between connecting rod (15), be connected through elastic component between shell fragment (403) and connecting rod (15), the one end and the upper end metal sheet (402) fixed connection of shell fragment (403), and the upper end metal sheet (402) set up to the ring plate shape, sheetmetal (404) are installed on lower extreme metal sheet (402).

5. The instrument transformer tester with terminal protection according to claim 4, wherein: elastic component includes curved connecting block (12) and presss from both sides tight piece (13), the both ends of connecting block (12) are fixed with one side of two adjacent connecting rods (15) respectively, one side of pressing from both sides tight piece (13) is through one side fixed connection of second compression spring (14) and connecting block (12), the opposite side of pressing from both sides tight piece (13) is the arc setting, just the opposite side of pressing from both sides tight piece (13) is laminated with one side of shell fragment (403).

6. The instrument transformer tester with terminal protection according to claim 5, wherein: the side wall of the metal sheet (404) is integrally formed with a protrusion, the protrusion is located between two adjacent elastic sheets (403), the side wall of the protrusion is attached to the side walls of the two adjacent elastic sheets (403), the lower end of the metal sheet (404) is fixedly connected with the lower end metal plate (402) through a first compression spring (11), and the lower end of the metal plate (402) is fixedly provided with a lead (10).

7. The instrument transformer tester with terminal protection according to claim 6, wherein: fixture still includes circular bottom plate (401), bottom plate (401) inlay the lower extreme at mounting panel (6) through the bolt, the hole of stepping down that supplies wire (10) to run through is seted up to the lower extreme of mounting panel (6), the upper end of bottom plate (401) and the lower extreme fixed connection of lower extreme metal sheet (402).