CN220650773U - Portable ground-off type grounding resistance measuring instrument - Google Patents

Abstract

The utility model relates to a portable ground-off type grounding resistance measuring instrument. Mainly provides a portable ground-off type ground resistance measuring instrument which brings convenience to users. The portable ground-off type grounding resistance measuring instrument comprises an ammeter, a telescopic structure, a telescopic table and a box body, wherein the telescopic structure comprises a connecting column, a fixing rod and a connecting frame, and the box body comprises an upper half box and a lower half box; the ammeter back is installed in flexible bench top, and flexible bench bottom at least fixed mounting has a extending structure, and extending structure other end fixed mounting is in the inside bottom of lower half-box, and the dead lever passes through the spliced pole with the dead lever upper and lower extreme and articulates, articulates between the spliced pole has the link, and the link includes long connecting rod, three hole connecting rods and spacing connecting rod. The utility model has convenient operation, can reduce the contact between the ammeter and the ground during use, prolongs the service life, does not need frequent squatting work for operators, brings convenience to users, improves the portability of equipment, and is widely applied to the field of electric safety inspection.

Description

Portable ground-off type grounding resistance measuring instrument

Technical Field

The utility model relates to the field of electric safety inspection, in particular to a portable ground-off type grounding resistance measuring instrument.

Background

The earth resistance measuring instrument is a common resistance measuring device, is also an indispensable tool for electric safety inspection and earth engineering completion acceptance, is suitable for measuring the earth resistance of various devices and the conductor resistance value of low resistance in the departments of electric power, post and telecommunications, railway, petroleum, chemical industry, communication, mine and the like, and can also measure the soil resistivity and the earth voltage.

The ground resistance measuring apparatu among the prior art generally places subaerial, can contact with ground when using, produces wearing and tearing to test surface, influences life and measurement accuracy, and the operator needs to squat frequently to play work simultaneously, brings inconvenience for the user.

Disclosure of Invention

The utility model aims to solve the technical problems of the prior art, and provides the portable ground-leaving type ground resistance measuring instrument which reduces the contact between an ammeter and the ground during use, prolongs the service life, improves the measurement accuracy and portability, and simultaneously does not need frequent squatting and lifting work for operators, thereby bringing convenience to users.

In order to achieve the above purpose, the portable ground-off type grounding resistance measuring instrument of the utility model adopts the following technical scheme:

the portable ground-off type grounding resistance measuring instrument comprises an ammeter, a telescopic structure, a telescopic table and a box body, wherein the telescopic structure comprises a connecting column, a fixing rod and a connecting frame, and the box body comprises an upper half box and a lower half box; the ammeter back is installed in flexible bench top, flexible bench bottom at least fixed mounting has a extending structure, extending structure other end fixed mounting is in the inside bottom of lower half case, upper and lower ends are articulated through the spliced pole between dead lever and the dead lever, articulated between the spliced pole have the link, the link includes long connecting rod, three hole connecting rods and spacing connecting rod, long connecting rod one end is articulated with dead lever department spliced pole, and the other end passes through the spliced pole with three hole connecting rods and articulates, three hole connecting rod one end is articulated with the dead lever spliced pole, and the other end passes through the spliced pole with spacing connecting rod and articulates.

Further, the limiting structure is arranged on the fixing rod, so that the telescopic structure can be limited and fixedly used after reaching a certain height.

Further, a limiting groove is formed in the middle of the fixing rod, and limiting is conveniently carried out by the limiting structure.

Further, the three-hole connecting rod is connected with the reinforcing connecting rod, so that stability of the telescopic structure is improved.

Further, the lower half box is provided with a telescopic limit groove, so that the stability of the telescopic structure and the whole ammeter is improved.

Further, the handle is installed on the top of the upper half box, and the portability of the whole measuring instrument is improved.

Further, the closing button is arranged at the lower half box mounting closing position, so that the box body is not easy to open after being closed, and the overall portability of the measuring instrument is improved.

Further, the lower half box is provided with a wire groove, so that the wires required for measurement can be conveniently placed.

Compared with the existing ground resistance measuring instrument, the utility model has at least the following beneficial effects:

1. in the portable ground-off type grounding resistance measuring instrument provided by the utility model, different from the existing ground resistance measuring instrument in use and placement mode, the electric meter is placed in the air for use through the telescopic structure, so that the electric meter is not contacted with the ground, the abrasion is reduced, and meanwhile, an operator does not need to frequently squat up to work, thereby bringing convenience to the user.

2. The utility model has simple structure, is convenient to operate, can better store the required measuring wires, does not occupy larger space, is convenient for operators to connect wires, and improves the testing efficiency.

3. The fixed rod is also provided with the limiting structure and the limiting groove, and the ammeter is limited and fixed when being lifted to a height suitable for working through the telescopic structure.

Drawings

In order to more clearly illustrate the embodiments of the present utility model, the drawings that are required to be used in the description of the embodiments or the prior art will be briefly described below.

FIG. 1 is a schematic diagram of the portable ground resistance measuring instrument;

FIG. 2 is a schematic view of the telescopic structure;

FIG. 3 is a schematic structural diagram of the portable ground resistance measuring instrument;

fig. 4 is a schematic structural view of the telescopic structure.

1 ammeter, 3 flexible platform, 2 extending structure, 4 boxes, 21 connecting column, 22 dead lever, 23 link, 41 first half case, 42 second half case, 221 spacing groove, 231 long connecting rod, 232 three hole connecting rods, 233 spacing connecting rods, 234 reinforcing connecting rods, 235 spacing structure, 411 handle, 421 close button, 422 flexible spacing groove, 423 wire casing.

Detailed Description

The present utility model will be further described with reference to the following specific examples, but it should be noted that the present examples are implemented on the premise of the technical solution of the present utility model, and detailed implementation manners and specific operation procedures are given, but the protection scope of the present utility model is not limited to the following examples.

As shown in fig. 1-4, the portable ground-leaving type ground resistance measuring instrument comprises an ammeter 1, a telescopic structure 2, a telescopic table 3 and a box body 4, wherein the telescopic structure 2 comprises a connecting column 21, a fixing rod 22 and a connecting frame 23, and the box body 4 comprises an upper half box 41 and a lower half box 42; the handle 411 is installed on the top end of the upper half box 41, so that the portability of the whole measuring instrument is improved. The back of the ammeter 1 is arranged at the top of the telescopic table 3, at least one telescopic structure 2 is fixedly arranged at the bottom of the telescopic table 3, and the other end of the telescopic structure 2 is fixedly arranged at the bottom end inside the lower half box 42; the lower half box 42 is provided with a telescopic limit groove 422, which is beneficial to improving the overall stability of the telescopic structure 2 and the ammeter 1, limiting the movement range of the telescopic structure 2 and improving the positioning precision of the telescopic structure 2; the closing button 421 is installed at the position where the lower half box 42 is installed, so that the box body is not easy to open after being closed, the portability of the whole measuring instrument is improved, a user can conveniently carry and carry the measuring instrument, and the working efficiency is improved. The lower half box 42 is provided with a wire groove 423, so that wires required for measurement can be conveniently placed, the wires can be orderly arranged and protected, damage and faults of the wires are reduced, and safety and stability are improved.

According to the utility model, the upper end and the lower end between the fixed rods 22 and the fixed rods 22 are hinged through the connecting columns 21, the connecting frames 23 are hinged between the connecting columns 21, each connecting frame 23 comprises a long connecting rod 231, a three-hole connecting rod 232 and a limit connecting rod 233, one end of each long connecting rod 231 is hinged with the connecting column 21 at the position of the fixed rod 22, the other end of each long connecting rod 231 is hinged with the corresponding three-hole connecting rod 232 through the corresponding connecting column 21, one end of each three-hole connecting rod 232 is hinged with the corresponding connecting column 21, the other end of each three-hole connecting rod 232 is hinged with the corresponding limit connecting rod 233 through the corresponding connecting column 21, a third hole is formed in the rod body of each three-hole connecting rod 232, and a reinforcing connecting rod 234 is arranged between the rod body of each three-hole connecting rod 232, so that the stability and the bearing capacity of the telescopic structure 2 can be enhanced, the telescopic structure 2 can be prevented from being deformed or damaged in the use process, and the reliability and safety of the structure can be improved. Install limit structure 235 on the dead lever 22, limit groove 221 has been seted up in the middle of the dead lever 22, and limit connecting rod 233, limit structure 235 and limit groove 221 three mutually support and fix limit to telescopic structure 2, ensure telescopic structure 2 can not surpass safety margin in the use, avoid telescopic structure 2's damage and danger.

When the electric meter is used, the telescopic structure 2 at the lower end of the electric meter 1 can be driven to be pulled up by lifting the electric meter 1, the limiting structure 235, the limiting groove 221 and the limiting connecting rod 233 are matched with each other when the electric meter 1 is pulled up to a proper position, the electric meter can be fixed and limited, and after the electric meter is used, the electric meter can be reset by only pulling the limiting structure 235 out of the limiting groove 221 and shrinking the electric meter.

The foregoing description of the preferred embodiments of the present utility model should not be construed as limiting the scope of the utility model, but rather as utilizing the equivalent structural changes made by the description of the present utility model and the accompanying drawings or directly/indirectly applied to other related technical fields are included in the scope of the utility model.

Claims (8)

1. The utility model provides a portable ground resistance measuring apparatu from ground, includes ammeter (1), extending structure (2), flexible platform (3) and box (4), its characterized in that: the telescopic structure (2) comprises a connecting column (21), a fixing rod (22) and a connecting frame (23), and the box body (4) comprises an upper half box (41) and a lower half box (42); the utility model discloses a flexible electric meter, including ammeter (1) back installation in flexible platform (3) top, flexible platform (3) bottom fixed mounting has a extending structure (2) at least, extending structure (2) other end fixed mounting is in inside bottom of lower half box (42), dead lever (22) are articulated through spliced pole (21) with dead lever (22) upper and lower extreme, articulated between spliced pole (21) have link (23), link (23) include long connecting rod (231), three hole connecting rod (232) and spacing connecting rod (233), long connecting rod (231) one end is articulated with dead lever (22) department spliced pole (21), and the other end is articulated through spliced pole (21) with three hole connecting rod (232), three hole connecting rod (232) one end is articulated with dead lever (22) spliced pole (21), and the other end is articulated through spliced pole (21) with spacing connecting rod (233).

2. The portable ground resistance meter of claim 1, wherein: and a limiting structure (235) is arranged on the fixed rod (22).

3. A portable ground resistance meter as defined in claim 2, wherein: a limiting groove (221) is formed in the middle of the fixing rod (22).

4. The portable ground resistance meter of claim 1, wherein: the three-hole connecting rod (232) is connected with a reinforcing connecting rod (234) between the three-hole connecting rods (232).

5. The portable ground resistance meter of claim 1, wherein: the lower half box (42) is provided with a telescopic limit groove (422).

6. The portable ground resistance meter of claim 1, wherein: a handle (411) is arranged at the top end of the upper half box (41).

7. The portable ground resistance meter of claim 1, wherein: the lower half box (42) is provided with a closing button (421) at a closing position.

8. The portable ground resistance meter of claim 1, wherein: the lower half box (42) is provided with a wire groove (423).