CN111257646A - Lightning protection detects uses ground resistance testing arrangement - Google Patents
Lightning protection detects uses ground resistance testing arrangement Download PDFInfo
- Publication number
- CN111257646A CN111257646A CN202010221055.0A CN202010221055A CN111257646A CN 111257646 A CN111257646 A CN 111257646A CN 202010221055 A CN202010221055 A CN 202010221055A CN 111257646 A CN111257646 A CN 111257646A
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- CN
- China
- Prior art keywords
- fixedly connected
- lightning protection
- ohmmeter
- protection detection
- resistance testing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
- G01R27/20—Measuring earth resistance; Measuring contact resistance, e.g. of earth connections, e.g. plates
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
- G01R1/0425—Test clips, e.g. for IC's
Abstract
The invention relates to the technical field of ground resistance, in particular to a ground resistance testing device for lightning protection detection, which comprises an ohmmeter, wherein the lower end of the ohmmeter is provided with a mounting groove, bearings are fixedly connected to the inner walls of two sides of two ends of the mounting groove, a winding roller is fixedly connected to the inner shaft surface of each bearing, a rotating shaft is fixedly connected to the upper end of the winding roller, a limiting mechanism is arranged on the rotating shaft, connecting wires are connected to two sides of the lower end of the ohmmeter and wound on the winding roller, a sliding rod is fixedly connected to the lower end of the connecting wire, a clamping plate is fixedly connected to one end of the sliding rod, a moving plate is connected to the sliding rod through a clamping mechanism. The invention has the characteristic of being convenient for testing the grounding resistors with different lengths and diameters.
Description
Technical Field
The invention relates to the technical field of grounding resistance, in particular to a grounding resistance testing device for lightning protection detection.
Background
The ground resistance is a resistance encountered by a current flowing from a ground device into the ground and then flowing through the ground to another ground body or spreading to a distant place. Detect the value of resistance through testing arrangement, see whether ground resistance's resistance value reaches the standard, switch on through the both ends with testing arrangement to resistance to measure the resistance value, but testing arrangement among the prior art can not adjust the length of wire, is not convenient for carry out the fixed clamp to the resistance of different diameters simultaneously and presss from both sides, leads to being not convenient for to detect the ground resistance of different length and diameter. Therefore, the grounding resistance testing device for lightning protection detection is provided.
Disclosure of Invention
The invention aims to solve the defect that resistors with different diameters and long lengths are inconvenient to detect in the prior art, and provides a grounding resistance testing device for lightning protection detection.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a ground resistance testing arrangement for lightning protection detection, includes the ohmmeter, the mounting groove has been seted up to the ohmmeter lower extreme, equal fixedly connected with bearing on the both sides inner wall at mounting groove both ends, the interior axial surface fixedly connected with winding roller of bearing, winding roller upper end fixedly connected with pivot, be provided with stop gear in the pivot, ohmmeter lower extreme both sides all are connected with connecting wire, connecting wire twines on winding roller, connecting wire lower extreme fixedly connected with slide bar, slide bar one end fixedly connected with splint, be connected with the movable plate through clamping mechanism on the slide bar, movable plate, slide bar and splint are metal material and make.
Preferably, stop gear include with ohmmeter fixed connection's fixed plate, set up threaded hole on the fixed plate, threaded hole female connection has the threaded rod, threaded rod lower extreme fixedly connected with limiting plate, the limiting plate is located the pivot directly over, fixedly connected with handle on the threaded rod.
Preferably, the rotating shaft is fixedly connected with a rotating knob.
Preferably, clamping mechanism include with movable plate fixed connection's shift ring, the shift ring cover is established on the slide bar, the cover is equipped with the spring on the slide bar, spring one end with shift ring fixed connection, the spring other end with splint fixed connection, the spring is in tensile state.
Preferably, the other end of the sliding rod is fixedly connected with a limiting block, the limiting block is circular, and the diameter of the limiting block is larger than the inner diameter of the moving ring.
Preferably, the two sides of the ohmmeter are fixedly connected with connecting lugs, and anti-skidding grooves are formed in the connecting lugs.
Preferably, both ends of the wire winding roller are fixedly connected with limit discs.
Preferably, the moving plate, the sliding rod and the clamping plate are made of copper.
The grounding resistance testing device for lightning protection detection provided by the invention has the beneficial effects that: through the design of mounting groove, pivot, winding roller, stop gear, be convenient for twine connecting wire and carry out the rolling to measure the resistance of different length, simultaneously through the design of splint, clamping mechanism, movable plate, be convenient for fix the resistance of different diameters, so that measure the ground resistance of different diameters.
Drawings
Fig. 1 is a schematic structural diagram of a grounding resistance testing device for lightning protection detection according to the present invention;
FIG. 2 is a front view of the grounding resistance testing device for lightning protection detection shown in FIG. 1;
fig. 3 is a bottom view of fig. 1 of a grounding resistance testing device for lightning protection detection according to the present invention;
FIG. 4 is an enlarged view of the portion A in FIG. 1 of the testing device for grounding resistance for lightning protection detection according to the present invention;
FIG. 5 is an enlarged view of a portion B in FIG. 1 of the testing apparatus for grounding resistance for lightning protection detection according to the present invention;
fig. 6 is an enlarged view of a portion C in fig. 3 of the grounding resistance testing device for lightning protection detection according to the present invention;
in the figure: ohmmeter 1, engaging lug 2, mounting groove 3, connecting wire 4, anti-skidding groove 5, spring 6, slide bar 7, stopper 8, splint 9, movable plate 10, rotation knob 11, fixed plate 12, handle 13, shift ring 14, threaded rod 15, limiting plate 16, pivot 17, wire winding roller 18, limiting disc 19, bearing 20.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example 1
Referring to fig. 1-6, a ground resistance testing arrangement for lightning protection detection, including ohmmeter 1, mounting groove 3 has been seted up to ohmmeter 1 lower extreme, equal fixedly connected with bearing 20 on the both sides inner wall at mounting groove 3 both ends, interior axial surface fixedly connected with wire winding roller 18 of bearing 20, fixedly connected with pivot 17 in wire winding roller 18, fixedly connected with rotates knob 11 on the pivot 17, be provided with stop gear on the pivot 17, through rotating knob 11, will drive pivot 17 and rotate, thereby make wire winding roller 18 adjust connecting wire 4's length, so that testing ground resistance's the resistance to different length.
Both sides of the lower end of the ohmmeter 1 are connected with connecting wires 4, the connecting wires 4 are wound on a winding roller 18, the lower end of each connecting wire 4 is fixedly connected with a sliding rod 7, one end of each sliding rod 7 is fixedly connected with a clamping plate 9, the sliding rod 7 is connected with a movable plate 10 through a clamping mechanism, the movable plate 10, the sliding rods 7 and the clamping plates 9 are made of metal materials, the movable plate 10, the sliding rods 7 and the clamping plates 9 can be made of copper, the grounding resistors are fixed through the movable plate 10 and the clamping plates 9, the grounding resistors are connected into a circuit, the resistance of the grounding resistors is displayed on the ohmmeter 1, and whether the actual value and the standard value of the resistance.
Example 2
Referring to fig. 5, as another preferred embodiment of the present invention, the difference from embodiment 1 is that the limiting mechanism includes a fixing plate 12 fixedly connected to the ohmmeter 1, a threaded hole is formed in the fixing plate 12, a threaded rod 15 is connected to the threaded hole in a threaded manner, a limiting plate 16 is fixedly connected to a lower end of the threaded rod 15, the limiting plate 16 is located right above the rotating shaft 17, a handle 13 is fixedly connected to the threaded rod 15, and the threaded rod 15 is driven to rotate by rotating the handle 13, so that the limiting plate 16 abuts against the rotating shaft 17, the rotating shaft 17 is fixed, the rotating shaft 17 is prevented from rotating, the length of the connecting wire 4 is fixed, and the connecting wire 4 is prevented from being thrown too much and the wire is wound and knotted.
Example 3
Referring to fig. 4, as another preferred embodiment of the present invention, the difference from embodiment 1 is that the clamping mechanism includes a moving ring 14 fixedly connected to the moving plate 10, the moving ring 14 is sleeved on the sliding rod 7, the sliding rod 7 is sleeved with a spring 6, one end of the spring 6 is fixedly connected to the moving ring 14, the other end of the spring 6 is fixedly connected to the clamping plate 9, the spring 6 is in a stretching state, and a pulling force is formed on the moving ring 14 by a restoring force of the spring 6 to match the moving plate 10 with the clamping plate 9, so as to fix the resistors, and at the same time, the resistors with different diameters can be conveniently fixed.
Example 4
Referring to fig. 4, as another preferred embodiment of the present invention, the difference from embodiment 3 is that the other end of the sliding rod 7 is fixedly connected with a limiting block 8, the limiting block 8 is circular, the diameter of the limiting block 8 is greater than the inner diameter of the moving ring 14, and the limiting block 8 acts on the moving ring 14 to limit, so as to prevent the moving ring 14 from separating from the sliding rod 7.
Example 5
Referring to fig. 1, as another preferred embodiment of the present invention, the difference from embodiment 1 is that connecting lugs 2 are fixedly connected to both sides of ohmmeter 1, anti-slip grooves 5 are formed on connecting lugs 2, and the design of connecting lugs 2 is used to facilitate holding ohmmeter 1, and the design of anti-slip grooves 5 increases friction force to prevent ohmmeter 1 from falling off during holding.
Example 6
Referring to fig. 6, as another preferred embodiment of the present invention, the difference from embodiment 1 is that both ends of the wire winding roller 18 are fixedly connected with limiting discs 19, and the design of the limiting discs 19 limits the wound connecting wire 4 to prevent the connecting wire 4 from being separated from the wire winding roller 18.
To sum up, this ground resistance testing arrangement for lightning protection detection passes through mounting groove, pivot, winding roller, stop gear's design, is convenient for twine connecting wire and carries out the rolling to measure the resistance of different length, simultaneously through the design of splint, clamping mechanism, movable plate, be convenient for fix the resistance of different diameters, so that measure the ground resistance of different diameters.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. The utility model provides a ground resistance testing arrangement for lightning protection detection, includes ohmmeter (1), its characterized in that, mounting groove (3) have been seted up to ohmmeter (1) lower extreme, equal fixedly connected with bearing (20) on the both sides inner wall at mounting groove (3) both ends, interior axial surface fixedly connected with wire winding roller (18) of bearing (20), wire winding roller (18) upper end fixedly connected with pivot (17), be provided with stop gear on pivot (17), ohmmeter (1) lower extreme both sides all are connected with connecting wire (4), connecting wire (4) winding is on wire winding roller (18), connecting wire (4) lower extreme fixedly connected with slide bar (7), slide bar (7) one end fixedly connected with splint (9), be connected with movable plate (10) through clamping movable plate mechanism on slide bar (7), ground resistance testing arrangement for lightning protection detection, including ohmmeter (1), its characterized in that, The sliding rod (7) and the clamping plate (9) are made of metal materials.
2. The ground resistance testing device for lightning protection detection according to claim 1, wherein the limiting mechanism comprises a fixing plate (12) fixedly connected with the ohmmeter (1), a threaded hole is formed in the fixing plate (12), a threaded rod (15) is connected in the threaded hole, a limiting plate (16) is fixedly connected to the lower end of the threaded rod (15), the limiting plate (16) is located right above the rotating shaft (17), and a handle (13) is fixedly connected to the threaded rod (15).
3. The grounding resistance testing device for lightning protection detection according to claim 1, wherein a rotating knob (11) is fixedly connected to the rotating shaft (17).
4. The grounding resistance testing device for lightning protection detection according to claim 1, wherein the clamping mechanism comprises a moving ring (14) fixedly connected with the moving plate (10), the moving ring (14) is sleeved on a sliding rod (7), a spring (6) is sleeved on the sliding rod (7), one end of the spring (6) is fixedly connected with the moving ring (14), the other end of the spring (6) is fixedly connected with the clamping plate (9), and the spring (6) is in a stretching state.
5. The grounding resistance testing device for lightning protection detection according to claim 4, wherein a limiting block (8) is fixedly connected to the other end of the sliding rod (7), the limiting block (8) is circular, and the diameter of the limiting block (8) is larger than the inner diameter of the moving ring (14).
6. The grounding resistance testing device for lightning protection detection according to claim 1, wherein connecting lugs (2) are fixedly connected to two sides of the ohmmeter (1), and anti-skid grooves (5) are formed in the connecting lugs (2).
7. The grounding resistance testing device for lightning protection detection according to claim 1, characterized in that both ends of the winding roller (18) are fixedly connected with limiting discs (19).
8. The grounding resistance tester for lightning protection detection according to claim 1, wherein the moving plate (10), the sliding rod (7) and the clamping plate (9) are made of copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010221055.0A CN111257646A (en) | 2020-03-26 | 2020-03-26 | Lightning protection detects uses ground resistance testing arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010221055.0A CN111257646A (en) | 2020-03-26 | 2020-03-26 | Lightning protection detects uses ground resistance testing arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111257646A true CN111257646A (en) | 2020-06-09 |
Family
ID=70942552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010221055.0A Pending CN111257646A (en) | 2020-03-26 | 2020-03-26 | Lightning protection detects uses ground resistance testing arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111257646A (en) |
-
2020
- 2020-03-26 CN CN202010221055.0A patent/CN111257646A/en active Pending
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