CN219162242U

CN219162242U - High-precision grounding resistance strain gauge

Info

Publication number: CN219162242U
Application number: CN202222783469.XU
Authority: CN
Inventors: 郑宁宁; 王彤彤; 郑北京
Original assignee: Nanjing Ningzhihai Electronic Technology Co ltd
Current assignee: Nanjing Ningzhihai Electronic Technology Co ltd
Priority date: 2022-10-21
Filing date: 2022-10-21
Publication date: 2023-06-09
Anticipated expiration: 2032-10-21

Abstract

The utility model belongs to the technical field of resistance strain gauges, and particularly relates to a high-precision grounding resistance strain gauge which comprises an equipment main body, wherein an installation groove is formed in the bottom of the equipment main body, supporting feet are arranged in the installation groove, supporting springs are fixedly arranged at the tops of the supporting feet, clamping grooves are formed in one sides of the supporting feet, through holes are formed in one sides of the installation groove, clamping pins are arranged in the through holes, and compression springs are arranged at one ends of the clamping pins. According to the utility model, the supporting legs and the supporting springs are arranged in the mounting grooves, the clamping grooves are formed in one side of the supporting legs, the clamping pins and the compression springs are arranged in the through holes, the clamping pins and the clamping grooves are conveniently separated by pulling, the supporting legs are conveniently used for supporting the ground through the supporting springs, meanwhile, the supporting legs are downwards pressed to reset, the clamping pins and the clamping grooves are conveniently and fixedly clamped again, the equipment is conveniently stored, the equipment main body can be prevented from being directly contacted with the ground, the problem of poor heat dissipation or easy wetting is avoided, and the equipment is conveniently and better operated.

Description

High-precision grounding resistance strain gauge

Technical Field

The utility model relates to the technical field of resistance strain gauges, in particular to a high-precision grounding resistance strain gauge.

Background

The resistive strain gauge essentially measures the change in resistance, but is shown by a strain gauge reading, which is typically indicated by an indicating meter or recorded by a recorder. With the development of electronic technology, digital strain gauges have emerged, which display strain directly in digital form and develop printable recordings for rapid measurement of multi-point strain, and data acquisition devices and systems have been developed, which are operated by computers for real-time data acquisition, transmission, storage and processing.

The prior art has the following problems:

1. the existing high-precision grounding resistance strain gauge is usually used for directly placing the grounding resistance tester on a horizontal plane for working, so that the heat dissipation effect is poor, and if water or other liquid exists at the horizontally placed position, the electronic components in the grounding resistance tester are easily affected with damp and have faults, so that the normal working of the grounding resistance tester is affected;

2. the existing high-precision grounding resistance strain gauge is inconvenient to install and detach the cover plate, is troublesome to operate and use, and is inconvenient to use better.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides the high-precision grounding resistance strain gauge, which solves the problems that the grounding resistance strain gauge is usually and directly placed on a horizontal plane to work, the heat dissipation effect is poor, and if water or other liquid exists at the horizontally placed position, the electronic components in the grounding resistance strain gauge are easily affected by damp and have faults, so that the normal work of the electronic components is influenced, the cover plate is inconvenient to install and detach, the operation and the use are troublesome, and the use is inconvenient and better.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a high accuracy ground resistance strain gauge, includes the equipment main part, equipment main part bottom is provided with the mounting groove, the inside supporting legs that is provided with of mounting groove, supporting leg top fixed mounting has supporting spring, supporting leg one side is provided with the draw-in groove, mounting groove one side is provided with the through-hole, the inside bayonet lock that is provided with of through-hole, bayonet lock one end is provided with compression spring, equipment main part top is provided with the fixed block, fixed block one side is provided with the fixed slot, equipment main part top is provided with the apron, the apron bottom is provided with the fixed slot, the apron top is provided with the carousel, the apron bottom is provided with the pivot, be provided with the rope in the pivot, apron bottom fixed mounting has the stop collar, the stop collar inner wall is provided with the fixed pin, the fixed pin outer wall is provided with reset spring.

As a preferable technical scheme of the utility model, the outer diameter size of the supporting leg is matched with the inner diameter size of the mounting groove, and the supporting leg is movably inserted into the mounting groove.

As a preferable technical scheme of the utility model, the outer diameter size of the bayonet lock is matched with the inner diameter size of the clamping groove, and the bayonet lock is movably inserted into the clamping groove.

As a preferable technical scheme of the utility model, the outer diameter size of the fixed block is matched with the inner diameter size of the groove, and the fixed block is movably inserted into the groove.

As a preferable technical scheme of the utility model, one end of the rope is fixedly connected with the fixing pin.

As a preferable technical scheme of the utility model, the outer diameter size of the fixing pin is matched with the inner diameter sizes of the limiting sleeve and the fixing groove, and the fixing pin is movably inserted into the limiting sleeve and the fixing groove.

As a preferred embodiment of the utility model, the fixing pin is designed in a cylindrical shape, and the restoring spring is wound around the outer wall of the fixing pin.

Compared with the prior art, the utility model provides a high-precision grounding resistance strain gauge, which has the following beneficial effects:

1. this high accuracy ground resistance strain gauge through being provided with supporting legs and supporting spring inside the mounting groove, supporting legs one side is provided with the draw-in groove, and the through-hole is inside to be provided with bayonet lock and compression spring, through the pulling bayonet lock, is convenient for make bayonet lock and draw-in groove break away from, is convenient for make the supporting legs support ground through supporting spring, presses down the equipment main part simultaneously, makes the supporting legs reset, is convenient for make bayonet lock and draw-in groove refasten joint, conveniently accomodate, can avoid equipment main part direct and ground contact, leads to the poor or the problem appearance that wets easily of heat dissipation, is convenient for better work.

2. This high accuracy ground resistance strain gauge through being provided with fixed block and recess, and fixed block one side is provided with the fixed slot, is provided with the carousel on the apron, and the bottom is provided with pivot and stop collar, is provided with the rope in the pivot, and the stop collar is inside to be provided with the fixed pin, and rope one end links to each other with the fixed pin, and the fixed pin outer wall is provided with reset spring, is convenient for drive the pivot through rotating the carousel and rotates to can stimulate the rope, can be convenient for install and dismantle it, operation use is more convenient, and the practicality is higher.

Drawings

FIG. 1 is a schematic cross-sectional view of the present utility model;

FIG. 2 is an enlarged view of the portion A of FIG. 1;

FIG. 3 is a schematic top view of the cover plate of the present utility model;

FIG. 4 is a schematic view of the bottom structure of the cover plate of the present utility model;

fig. 5 is a schematic structural view of a fixing pin according to the present utility model.

In the figure: 1. an apparatus main body; 2. a mounting groove; 3. supporting feet; 4. a support spring; 5. a clamping groove; 6. a through hole; 7. a bayonet lock; 8. a compression spring; 9. a fixed block; 10. a fixing groove; 11. a cover plate; 12. a groove; 13. a turntable; 14. a rotating shaft; 15. a rope; 16. a limit sleeve; 17. a fixing pin; 18. and a return spring.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 to 5, in the present embodiment: the utility model provides a high accuracy ground resistance strain gauge, including equipment main part 1, equipment main part 1 bottom is provided with mounting groove 2, the inside supporting legs 3 that are provided with of mounting groove 2, supporting legs 3 top fixed mounting has supporting spring 4, supporting legs 3 one side is provided with draw-in groove 5, mounting groove 2 one side is provided with through-hole 6, the inside bayonet lock 7 that is provided with of through-hole 6, bayonet lock 7 one end is provided with compression spring 8, equipment main part 1 top is provided with fixed block 9, fixed block 9 one side is provided with fixed slot 10, equipment main part 1 top is provided with apron 11, apron 11 bottom is provided with recess 12, apron 11 top is provided with carousel 13, apron 11 bottom is provided with pivot 14, be provided with rope 15 on the pivot 14, apron 11 bottom fixed mounting has stop collar 16, the stop collar 16 inner wall is provided with fixed pin 17, the fixed pin 17 outer wall is provided with reset spring 18.

In the embodiment, the outer diameter of the supporting leg 3 is matched with the inner diameter of the mounting groove 2, and the supporting leg 3 is movably inserted into the mounting groove 2, so that the supporting is convenient, and the use is convenient and better; the outer diameter of the bayonet lock 7 is matched with the inner diameter of the bayonet lock 5, and the bayonet lock 7 is movably inserted into the bayonet lock 5, so that the bayonet lock is convenient to fix and store; the outer diameter of the fixed block 9 is matched with the inner diameter of the groove 12, and the fixed block 9 is movably inserted into the groove 12, so that the installation and the disassembly are convenient, and the operation is convenient; one end of the rope 15 is fixedly connected with the fixed pin 17, so that the fixed pin 17 is conveniently pulled, and the installation and the disassembly are convenient; the outer diameter of the fixed pin 17 is matched with the inner diameter of the limit sleeve 16 and the fixed groove 10, and the fixed pin 17 is movably inserted into the limit sleeve 16 and the fixed groove 10, so that the installation is more stable and the use is convenient; the fixed pin 17 is designed into a cylindrical shape, and the reset spring 18 spirally surrounds the outer wall of the fixed pin 17, so that the reset is convenient, and the operation and the use are convenient.

The working principle and the using flow of the utility model are as follows: an operator is provided with a mounting groove 2 at the bottom of the equipment main body 1, a supporting leg 3 and a supporting spring 4 are arranged in the mounting groove 2, the supporting leg 3 is movably inserted into the mounting groove 2, a clamping groove 5 is arranged on one side of the supporting leg 3, a through hole 6 is arranged on one side of the mounting groove 2, a clamping pin 7 and a compression spring 8 are arranged in the through hole 6, the clamping pin 7 is movably inserted into the clamping groove 5, the clamping pin 7 is conveniently separated from the clamping groove 5 by pulling the clamping pin 7, the supporting leg 3 is conveniently pushed out by the elasticity of the supporting spring 4, the supporting leg 3 supports the ground, the supporting leg 3 is conveniently reset by downwards pressing the equipment main body 1, the clamping pin 7 is conveniently pushed out by the elasticity of the compression spring 8, the clamping groove 5 is convenient to fix and clamp, the operation and the use are more convenient, the fixing block 9 is arranged at the top of the equipment main body 1, the fixing groove 10 is arranged on one side of the fixing block 9, the groove 12 is arranged at the bottom of the cover plate 11, the fixing block 9 is movably spliced with the groove 12, the turntable 13 is arranged at the top of the cover plate 11, the rotating shaft 14 and the limiting sleeve 16 are arranged at the bottom of the cover plate, the rope 15 is arranged on the rotating shaft 14, the fixing pin 17 is arranged inside the limiting sleeve 16, one end of the rope 15 is connected with the fixing pin 17, the fixing pin 17 is movably spliced with the limiting sleeve 16 and the fixing groove 10, the rotating shaft 14 is driven to rotate through the rotating turntable 13, the rope 15 is convenient to pull, and accordingly the cover plate 11 is convenient to install and detach, and the practicability is improved.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides a high accuracy ground resistance strain gauge, includes equipment main part (1), its characterized in that: the device comprises a device body (1), wherein a mounting groove (2) is formed in the bottom of the device body (1), supporting legs (3) are arranged in the mounting groove (2), supporting springs (4) are fixedly arranged at the tops of the supporting legs (3), clamping grooves (5) are formed in one sides of the supporting legs (3), through holes (6) are formed in one sides of the mounting groove (2), clamping pins (7) are arranged in the through holes (6), compression springs (8) are arranged at one ends of the clamping pins (7), fixed blocks (9) are arranged at the tops of the device body (1), fixed grooves (10) are formed in one side of the fixed blocks (9), cover plates (11) are arranged at the tops of the device body (1), grooves (12) are formed in the bottoms of the cover plates (11), rotating discs (13) are arranged at the tops of the cover plates (11), rotating shafts (14) are arranged, ropes (15) are arranged on one sides of the rotating shafts, limiting sleeves (16) are fixedly arranged at the bottoms of the cover plates (11), and the inner walls of the limiting sleeves (16) are provided with fixed pins (17), and fixed pins (17) are arranged on the outer walls of the fixed pins (18).

2. A high precision ground resistance strain gauge as defined in claim 1 wherein: the outer diameter of the supporting leg (3) is matched with the inner diameter of the mounting groove (2), and the supporting leg (3) is movably inserted into the mounting groove (2).

3. A high precision ground resistance strain gauge as defined in claim 1 wherein: the outer diameter of the clamping pin (7) is matched with the inner diameter of the clamping groove (5), and the clamping pin (7) is movably inserted into the clamping groove (5).

4. A high precision ground resistance strain gauge as defined in claim 1 wherein: the outer diameter of the fixed block (9) is matched with the inner diameter of the groove (12), and the fixed block (9) is movably inserted into the groove (12).

5. A high precision ground resistance strain gauge as defined in claim 1 wherein: one end of the rope (15) is fixedly connected with the fixing pin (17).

6. A high precision ground resistance strain gauge as defined in claim 1 wherein: the outer diameter of the fixing pin (17) is matched with the inner diameter of the limiting sleeve (16) and the fixing groove (10), and the fixing pin (17) is movably inserted into the limiting sleeve (16) and the fixing groove (10).

7. A high precision ground resistance strain gauge as defined in claim 1 wherein: the fixing pin (17) is designed into a cylindrical shape, and the return spring (18) spirally surrounds the outer wall of the fixing pin (17).