CN212989492U

CN212989492U - Novel ground resistance tester

Info

Publication number: CN212989492U
Application number: CN202021553269.XU
Authority: CN
Inventors: 李浩杰; 郭福根; 任杰; 白全新
Original assignee: Inner Mongolia Kedian Electric Co ltd
Current assignee: Inner Mongolia Kedian Electric Co ltd
Priority date: 2020-07-30
Filing date: 2020-07-30
Publication date: 2021-04-16
Anticipated expiration: 2030-07-30

Abstract

The utility model discloses a novel ground resistance tester, including the tester body, set up the wire clamp that terminal and terminal one-to-one arranged on the tester body, the wire clamp includes the base, is located the stationary vane of base both sides, and the arc that is located the base top presss from both sides to and set up in the separation blade of arc clamp surface. The tester body is provided with the wire column and the wire clamp which is arranged in a one-to-one correspondence with the wiring terminal, the wire is placed in the arc-shaped clamp of the wire clamp, the phenomenon that when the tester is used, the wire is dragged to cause the conducting strip of the wire to fall off or to be in poor contact with the wiring terminal is avoided, and the wire is guided to be sorted and arranged. And the upper surface of the arc-shaped clamp is provided with a sliding blocking piece to prevent the lead from falling off from the lead clamp.

Description

Novel ground resistance tester

Technical Field

The utility model relates to a test instrument technical field especially relates to a novel ground resistance tester.

Background

The earth resistance tester is a resistance measuring device, which is used for measuring earth resistance of various devices and conductor resistance value of low resistance in departments of electric power, post and telecommunications, railway, communication, mine and the like; soil resistivity and ground voltage can also be measured.

The ground resistance tester is generally divided into a large-scale ground network ground resistance tester and a megger ground resistance tester, more advanced large-scale ground network ground resistance tester is adopted in a plurality of large-scale construction sites, the megger ground resistance tester with hand-cranking power generation is abandoned, but the national conditions are complicated, the terrain is complicated, a plurality of places are not suitable for adopting the large-scale ground network ground resistance tester, and the megger ground resistance tester is suitable for the plurality of places no matter the price is or is limited by plugging electricity.

The connection mode of terminal and wire of current megger ground resistance tester, crescent connector lug through the crimping wire realizes that wire and terminal are connected, and in actual operation, drop or connecting portion are inseparable because dragging of wire easily between wire and the terminal to lead to test data inaccurate.

In view of the above, it is a technical problem to be solved in the art to ensure the connection tightness between the terminal and the lead of the megger ground resistance tester.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a novel ground resistance tester, the terminal that improves megger ground resistance tester is connected with the wire and easily drops, connects untight problem.

In order to realize the purpose, the utility model discloses a technical scheme as follows:

the utility model provides a novel ground resistance tester, includes the tester body, sets up the wire clamp that terminal and terminal one-to-one arranged on the tester body, and the wire clamp includes the base, is located the stationary vane of base both sides, and the arc that is located the base top presss from both sides to and set up in the separation blade of arc clamp surface.

Furthermore, the two ends of the blocking piece are provided with convex blocks, the two sides of the upper surface of the arc-shaped clamp are provided with sliding grooves corresponding to the convex blocks, and the blocking piece is driven to slide on the upper surface of the arc-shaped clamp through the sliding of the convex blocks in the sliding grooves.

Furthermore, the binding post comprises a screw and a screw cap matched with the screw, and further comprises a magnetic suction sheet which is sleeved on the screw and is positioned between the screw cap and the tester body.

Furthermore, one side of the magnetic attraction piece close to the tester body is provided with a limiting block, and a corresponding position on the tester body is provided with a limiting groove matched with the magnetic attraction piece.

Further, novel ground resistance tester is still including setting up the portable on the tester body, and portable including setting up in the portable second of mentioning of the first hand of tester body both sides, and the portable all can overturn of the first hand of mentioning the second.

Furthermore, one side of the first portable far away from the tester body is fixedly connected with an anti-slip belt, and the other end of the anti-slip belt is bent inwards to form a turned edge for fixing the second portable.

Compared with the prior art, the utility model discloses following beneficial effect has:

(1) the utility model discloses a resistance tester is provided with the wire post on the tester body and presss from both sides with the wire that the terminal one-to-one was arranged, places the wire in the arc clamp of wire clamp, when preventing to use, pulls the wire and the conducting strip that causes the wire drops or contact failure with the terminal, has also played the effect to the categorised arrangement direction of wire simultaneously. And the upper surface of the arc-shaped clamp is provided with a sliding blocking piece to prevent the lead from falling off from the lead clamp.

(2) The utility model discloses a both ends of separation blade are provided with the lug, and the upper surface both sides of arc clamp are provided with the spout that corresponds with the lug, through the slip of lug in the spout, drive the separation blade and press from both sides the surface slip at the arc for the separation blade can only slide along the radian of arc clamp, upwards promotes the separation blade, exposes the breach of arc clamp, is used for putting into or taking out of wire, then promotes the separation blade downwards, thereby makes separation blade and arc clamp form the cylinder to the wire parcel, prevents that the wire from pressing from both sides and coming off from the wire. Meanwhile, the lead is placed in the lead clamp, so that the disorder of knotting of the lead is avoided.

(3) The utility model discloses a portable be provided with the first portable and the second portable that can rotate that are located tester body both sides, fixed antiskid area that is provided with on the first portable, the other end in antiskid area is provided with the turn-up and is used for fixed second portable, and the tester needs put down temporarily, and portable still is in treats mentioning the state, conveniently carries to have lifted and put down. Simultaneously, use first portable and the second portable of antiskid area parcel, increased with the area of contact of hand, when mentioning the tester, avoid reining in the hand.

(4) The utility model discloses a terminal is provided with the magnetism between traditional screw rod nut and inhales the piece, and the piece is inhaled with the spacing buckle assembly of tester body to the magnetism, improves the mode of only passing through the conducting strip of nut crimping wire in the past, and the problem of conducting strip and terminal contact failure appears to inhale the piece through the magnetism and strengthened the fixed to the conducting strip.

Drawings

Fig. 1 is a top view of the novel ground resistance tester provided by the embodiment of the utility model.

Fig. 2 is a side view of the test apparatus provided by the embodiment of the present invention.

Fig. 3 is a schematic view of a wire clamp according to an embodiment of the present invention.

Fig. 4 is a block diagram according to an embodiment of the present invention.

Fig. 5 is a cross-sectional view of a baffle plate according to an embodiment of the present invention.

Fig. 6 is a cross-sectional view of a terminal provided in an embodiment of the present invention.

In the drawings, the names of the parts corresponding to the reference numerals are as follows:

1-tester body, 11-dial, 12-range, 13-crank, 14-effect zero button, 15-handle, 151-first handle, 152-second handle, 153-anti-slip band, 16-binding post, 161 screw cap, 162-screw, 163-magnetic attraction piece, 164-limiting block, 165-limiting groove, 17-wire clamp, 171-base, 172-fixed wing, 173-arc clamp, 174-blocking piece, 175-lug and 176-sliding groove.

Detailed Description

The present invention will be further described with reference to the following drawings and examples, and embodiments of the present invention include, but are not limited to, the following examples.

Referring to fig. 1 to 4, a novel ground resistance tester includes a tester body 1, a tester function meter such as a dial 11, a measuring range 12, a crank 13, a zero-effect button 14, etc. is provided on the tester body, and a wiring clamp 17 is further provided on the tester body 1, wherein the wiring clamp 16 and the wiring clamp 16 are arranged in a one-to-one correspondence manner, the wiring clamp 17 includes fixing wings 172, which are located on two sides of a base 171, an arc clamp 173 located above the base 171, and a blocking piece 174 provided on an outer surface of the arc clamp 173. The fixing wing 172 is provided with a through hole through which a screw passes to be fixed to the tester body 1, thereby fixing the wire clamp 17 to the tester body. The use method of the grounding resistance tester is characterized in that conducting strips of 5m, 20m and 40m conducting wires are inserted into a screw rod of a conducting wire column, a nut is screwed to enable a nut to compress the conducting strips, and therefore the tester is electrically connected with the conducting wires. The upper surface of the arc clamp 173 is provided with a stopper 174 for blocking the gap of the arc clamp 173 to prevent the wire from falling off from the wire clamp.

The two ends of the blocking piece 174 are provided with a convex block 175, the two sides of the upper surface of the arc clamp 17 are provided with sliding grooves 176 corresponding to the convex block 175, and the blocking piece 174 is driven to slide on the upper surface of the arc clamp 173 by the sliding of the convex block 175 in the sliding grooves. The tab 17 is only able to slide along the arc of the clip by the engagement of the tab 175 with the slot to form a cylinder with the clip 173, thereby preventing the wire from falling off the clip 173.

The novel ground resistance tester further comprises a hand-held device 15 arranged on the tester body 1, wherein the hand-held device 15 comprises a first hand-held device 151 and a second hand-held device 152 arranged on two sides of the tester body, and the first hand-held device 151 and the second hand-held device 152 can be overturned. The first handle 151 and the second handle 152 are combined together to be lifted when used, balance of the tester body is guaranteed, and when not used, the first handle and the second handle are separated and respectively laid at two sides of the tester body 1, so that interference of a meter on the tester body 1 is not hindered.

The handle 15 further comprises a non-slip band 153 fixedly connected to the first handle 151, and the other end of the non-slip band 153 is provided with an inwardly bent bead for fixing the second handle 152. When the tester needs to be lifted, the first handle 151 and the second handle 152 are combined together, the second handle 152 is clamped into the turned edge of the anti-slip belt 153, so that the first handle 151 and the second handle 152 are fixed, the tester needs to be temporarily put down, the handle is still in a state to be lifted, and the tester is convenient to lift and put down. Meanwhile, the antiskid belt 153 is used for wrapping the first handle 151 and the second handle 152, so that the contact area with the hands is increased, and the hands are prevented from being tightened when the tester is lifted.

The terminal 16 includes a nut 161 adapted to the screw 162 and the screw 162, and a magnetic sheet 163 disposed on the screw 162 and between the nut 161 and the tester body 1. One side of the magnetic attraction sheet 163 close to the tester body 1 is provided with a limiting block 164, and a corresponding position on the tester body 1 is provided with a limiting groove 165 adapted to the position. The magnetic attraction piece 163 is assembled with the limiting buckle of the tester body 1, so that the problem that the contact between the conducting strip and the binding post is poor due to the fact that the conducting strip is only pressed and connected with the conducting strip through a nut in the prior art is solved, and the fixation of the conducting strip is enhanced through the magnetic attraction piece.

The utility model discloses a resistance tester inhales the piece through installation magnetism on original terminal, is equipped with the wire clamp for each terminal for the conducting strip of wire is closely difficult for droing with being connected of terminal, has strengthened the classification of wire simultaneously and has avoided the confusion of knoing. Be provided with the gliding separation blade of arc on the arc clamp of wire clamp for the separation blade can only remove along the radian of arc clamp, closes the separation blade, and the separation blade forms a cylinder and wraps up the wire with the arc clamp, avoids the wire to press from both sides from the wire and landing, has further strengthened guide effect and the clamping action of wire post to the wire. The utility model discloses simple structure, the simple operation.

The above-mentioned embodiment is only the preferred embodiment of the present invention, and is not a limitation to the protection scope of the present invention, but all the changes made by adopting the design principle of the present invention and performing non-creative work on this basis should belong to the protection scope of the present invention.

Claims

1. A novel grounding resistance tester is characterized by comprising a tester body (1), wiring terminals (16) arranged on the tester body (1) and wire clamps (17) arranged on the wiring terminals (16) in a one-to-one correspondence manner;

the wire guide clamp (17) comprises a base (171), fixing wings (172) positioned on two sides of the base (171), an arc-shaped clamp (173) positioned above the base (171), and a blocking piece (174) arranged on the outer surface of the arc-shaped clamp (173).

2. The novel grounding resistance tester of claim 1, wherein two ends of the blocking piece (174) are provided with a convex block (175), two sides of the upper surface of the arc-shaped clamp (173) are provided with sliding grooves (176) corresponding to the convex block (175), and the blocking piece (174) is driven to slide on the upper surface of the arc-shaped clamp (173) by the sliding of the convex block (175) in the sliding grooves (176).

3. The novel ground resistance tester of claim 2, wherein the terminal (16) comprises a screw (162) and a nut (161) adapted to the screw, and further comprises a magnetic attraction sheet (163) sleeved on the screw (162) and located between the nut (161) and the tester body (1).

4. The novel grounding resistance tester of claim 3, wherein a limit block (164) is arranged on one side of the magnetic attraction sheet (163) close to the tester body (1), and an adaptive limit groove (165) is arranged at a corresponding position on the tester body (1).

5. The novel grounding resistance tester of claim 4, characterized by further comprising a handle (15) disposed on the tester body, wherein the handle comprises a first handle (151) and a second handle (152) disposed on two sides of the tester body, and the first handle (151) and the second handle (152) can be turned over.

6. The novel grounding resistance tester of claim 5, characterized in that one side of the first handle (151) far away from the tester body is fixedly connected with an anti-slip belt (153), and the other end of the anti-slip belt (153) is bent inwards to form a curled edge for fixing the second handle (152).