CN210690689U

CN210690689U - Loop resistance measuring instrument

Info

Publication number: CN210690689U
Application number: CN201921621663.XU
Authority: CN
Inventors: 陈长伟; 李小波; 张佑国
Original assignee: Fujian Zhongwei Electric Power Engineering Co Ltd
Current assignee: Fujian Zhongwei Electric Power Engineering Co Ltd
Priority date: 2019-09-26
Filing date: 2019-09-26
Publication date: 2020-06-05
Anticipated expiration: 2029-09-26

Abstract

The utility model discloses a return circuit resistance measuring apparatu has solved the trouble problem of field usage, and its technical scheme main points are: organism including the measuring apparatu, the bottom of the body is provided with first backup pad along the width direction symmetry, organism one side lateral wall is provided with the second backup pad along the width direction symmetry, slide rail and slide rail extension to the second backup pad have been seted up respectively to two first backup pads, be provided with the fixed plate between the slide rail, the fixed plate is provided with slide mechanism, the fixed plate passes through slide mechanism and slides in the slide rail, first backup pad is provided with the fixed subassembly that is used for fixed plate respectively with the second backup pad, it is the installation department to keep away from bottom of the body one end when fixed plate removes to first backup pad, the installation department is provided with height-adjustable's support column, the support column is provided with the folding assembly that can make the support column fold in the fixed plate bottom.

Description

Loop resistance measuring instrument

Technical Field

The utility model belongs to the technical field of resistance test equipment technique and specifically relates to a return circuit resistance measuring apparatu is related to.

Background

The loop resistance measuring instrument is a special instrument for measuring contact resistance and loop resistance of on-off control equipment, the test current adopts 100A direct current recommended by national standard GB763, the loop resistance or the contact resistance can be directly measured and directly displayed under the condition of 100A, 200A, 300A, 400A, 500A or 600A current, the maximum number of groups is 100, and the stored data can be communicated with an upper computer through an RS232 interface and uploaded to a computer for storage or printing. The instrument has accurate measurement and stable performance, and is suitable for the requirements of on-site high-voltage switch maintenance and high-voltage switch plant loop resistance test of power and power supply departments.

At present, when a loop resistance measuring instrument is used, one end of a connecting wire is usually connected to a current wiring terminal and a voltage wiring terminal of the loop resistance measuring instrument according to a use requirement, and is connected with a ground wire, the other end of the connecting wire is connected to a measured device according to the use requirement, and then the loop resistance measuring instrument is operated to carry out testing to obtain a testing result.

However, there is usually no support frame or support platform for placing the loop resistance measuring instrument during field testing, and when using the loop resistance measuring instrument, a worker generally places the loop resistance measuring instrument on the ground, and then squats on the ground to operate after completing wiring, which is troublesome.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a return circuit resistance measuring apparatu has on-spot convenient to use's advantage.

The above object of the present invention can be achieved by the following technical solutions:

a loop resistance measuring instrument comprises an instrument body, wherein first supporting plates are symmetrically arranged at the bottom of the instrument body along the width direction, second supporting plates are symmetrically arranged on the side wall of one side of the instrument body along the width direction, the first supporting plates and the second supporting plates are fixedly connected with each other at the same side, sliding rails are respectively arranged on the two first supporting plates, and the sliding rails extend to the second supporting plates;

be provided with the fixed plate between the slide rail, the fixed plate is provided with slide mechanism, the fixed plate passes through slide mechanism and slides in the slide rail, first backup pad and second backup pad are provided with the fixed subassembly that is used for fixed plate respectively, it is the installation department to keep away from bottom of the body one end when the fixed plate removes to first backup pad, the installation department is provided with height-adjustable's support column, the support column is provided with the folding assembly that can make the support column fold in the fixed plate bottom, the support column is provided with the sliding assembly that can freely slide or be fixed in ground.

Through adopting above-mentioned technical scheme, the bottom of the body is provided with first backup pad, and organism one side lateral wall is provided with the second backup pad, and first backup pad links to each other with the second backup pad is fixed and is provided with the slide rail of intercommunication, and the fixed plate passes through slide mechanism and slides in the slide rail, and the fixed plate can remove between first backup pad and second backup pad. When the fixed plate moves to one side of the side wall of the machine body, the machine body slides on the ground through the supporting column provided with the sliding assembly, and the machine body is convenient for workers to move. When the fixed plate moves to the bottom of the machine body, the machine body is supported on the ground through the supporting columns, so that the machine body can be operated by workers without squatting on the ground, the working strength of the workers is favorably reduced, and the measuring instrument is used when the site test is convenient.

The utility model discloses further set up to: the sliding mechanism comprises two sliding shafts, the two sliding shafts are symmetrically fixed on two sides of the fixing plate, and the sliding shafts are connected to the sliding rails in a sliding mode.

Through adopting above-mentioned technical scheme, sliding shaft sliding connection is in the slide rail during the use, is favorable to the fixed plate to remove between organism bottom and lateral wall.

The utility model discloses further set up to: the fixing assembly comprises a fixing pin and a fixing hole, the fixing hole and the sliding shaft are located on the same side of the fixing plate and are arranged on the part away from the sliding shaft, connecting holes are respectively formed in the sliding rails of the first supporting plate and the second supporting plate, and the fixing pin penetrates through the connecting holes to be inserted into the fixing hole.

Through adopting above-mentioned technical scheme, the fixed plate removes behind bottom of the body or lateral wall one side, pegs graft in the fixed orifices through the fixed pin, is favorable to realizing the fixed of fixed plate.

The utility model discloses further set up to: and limiting strips used for limiting the sliding of the sliding shaft are respectively arranged between the first supporting plates and between the second supporting plates.

By adopting the technical scheme, the limiting strip limits the movement of the fixing plate when in use, and is favorable for limiting the sliding track of the fixing plate.

The utility model discloses further set up to: folding assembly includes articulated slab and articulated shaft, the support column has two sets ofly and every group has two, and is a set of the support column symmetry sets up in installation department one side and is close to marginal portion, another group the support column symmetry sets up in the installation department opposite side and is close to the intermediate position, the support column hinges between the articulated slab through the articulated shaft.

Through adopting above-mentioned technical scheme, the support column passes through the articulated shaft collapsible in the installation department during use, is favorable to packing up the support column, conveniently carries.

The utility model discloses further set up to: the hinge shaft is characterized in that square bolt holes are formed in two sides of the hinge shaft respectively and penetrate through the hinge plate to the outside, and bolts are arranged on the hinge plate and inserted into the bolt holes.

Through adopting above-mentioned technical scheme, make the bolt hole of articulated slab and articulated shaft align each other during the use, the bolt is pegged graft in the bolt hole after that, is favorable to realizing the fixed of support column.

The utility model discloses further set up to: the support column includes interior post and column jacket, interior post sliding connection is inside the column jacket, the column jacket is provided with the rotation axis that is used for dieing the interior post.

Through adopting above-mentioned technical scheme, interior post sliding connection is in the column jacket during use, and the interior post is died through the rotation axis top, is favorable to the altitude mixture control of support column.

The utility model discloses further set up to: the sliding assembly comprises a universal wheel with a brake pad.

Through adopting above-mentioned technical scheme, need fix the universal wheel through the brake block when fixed, open the brake block and can remove when needing to remove, be favorable to realizing the fixed of tester and removing.

To sum up, the utility model discloses a beneficial technological effect does:

the bottom of the machine body is provided with a first supporting plate, the side wall of one side of the machine body is provided with a second supporting plate, the first supporting plate and the second supporting plate are provided with slide rails which are communicated, and the fixed plate slides between the bottom of the machine body and the side wall through a slide shaft. When the fixed plate moves to one side of the side wall of the machine body, the machine body slides on the ground through the supporting column with the universal wheels arranged on the mounting part, so that the worker can conveniently move the measuring instrument. When the fixed plate moved to bottom of the body, the support post after the height adjustment supported the body and kept away from ground, need not the staff and squat on the ground and operate, was favorable to reducing staff's working strength, facilitates the use measuring apparatu.

Drawings

FIG. 1 is a schematic structural view of the fixing plate moving to the bottom of the machine body according to the present embodiment;

FIG. 2 is a schematic structural view of the support column of the present embodiment when folded;

FIG. 3 is a schematic structural diagram of the fixing plate moving to the side wall of the housing according to the present embodiment;

FIG. 4 is a schematic sectional view showing the structure of the sliding mechanism of the present embodiment;

fig. 5 is a schematic cross-sectional structure diagram of the support column of the present embodiment.

Description of reference numerals: 1. a body; 2. a cover body; 3. a first support plate; 4. a second support plate; 5. a slide rail; 6. a fixing plate; 7. a sliding mechanism; 8. a fixing assembly; 9. a support pillar; 10. a folding assembly; 11. a sliding assembly; 12. a sliding shaft; 13. a fixing pin; 14. a fixing hole; 15. connecting holes; 16. a restriction strip; 17. a hinge plate; 18. hinging a shaft; 19. a pin hole; 20. a bolt; 21. an inner column; 22. a column sleeve; 23. a rotating shaft; 24. a universal wheel; 25. an installation part.

Detailed Description

Example (b):

referring to fig. 1 and 2, a loop resistance measuring instrument includes a machine body 1 of the measuring instrument, one side of the machine body 1 is hinged with a cover body 2, one side of the relative hinged point of the machine body 1 is provided with a handle for conveniently lifting the machine body 1, and the cover body 2 is folded and then can be used for conveniently moving the measuring instrument. The bilateral symmetry along width direction in organism 1 bottom is fixed with first backup pad 3, and the bilateral symmetry along width direction in organism 1 one side lateral wall is fixed with second backup pad 4, and the hinge point of lid 2 and second backup pad 4 lie in organism 1 with one side, and second backup pad 4 is close to organism 1 bottom one side and is close to second backup pad 4 one side with first backup pad 3 and fixedly links to each other, and first backup pad 3 just passes through bolt fixed connection in organism 1 for rigid plastic structure with second backup pad 4.

Referring to fig. 3 and 4, the middle positions of the opposite sides of the two first supporting plates 3 are respectively provided with a sliding rail 5, the sliding rails 5 extend to the second supporting plate 4 along the width direction, a fixing plate 6 is arranged between the first supporting plates 3, and the width of the fixing plate 6 is smaller than the width of the side wall of the machine body 1. The fixing plate 6 is provided with a sliding mechanism 7, the fixing plate 6 moves between the first supporting plate 3 and the second supporting plate 4 through the sliding mechanism 7, and one end of the fixing plate 6, which is far away from the bottom of the machine body 1 when moving to the first supporting plate 3, is a mounting part 25. The first support plate 3 and the second support plate 4 are respectively provided with a fixing component 8 for fixing the fixing plate 6. The installation part 25 is provided with a supporting column 9 with adjustable height, and when the fixing plate 6 is moved to the bottom of the machine body 1, the machine body 1 is supported through the supporting column 9 so as to be convenient for a worker to operate the machine body 1. The supporting column 9 is provided with a folding component 10, and the supporting column 9 can be folded to be arranged between the first supporting plate 3, so that the volume is reduced. The supporting posts 9 are provided with sliding members 11, and when the fixing plate 6 is moved to the side wall of the machine body 1, the machine body 1 is moved more conveniently by the sliding members 11.

Referring to fig. 4, the sliding mechanism 7 includes two sliding shafts 12, the sliding shafts 12 are cylindrical structures with hollow interiors and are made of hard plastics, the two sliding shafts 12 are respectively fixedly connected to two sides of the fixing plate 6, and the sliding shafts 12 are slidably connected to the sliding rails 5.

Referring to fig. 3 and 4, the fixing assembly 8 includes a fixing pin 13 and a fixing hole 14, the fixing hole 14 is opened at a portion of the fixing plate 6 away from the sliding shaft 12, and the fixing hole 14 and the sliding shaft 12 are located on the same side of the fixing plate 6. The first supporting plate 3 and the second supporting plate 4 are provided with a connecting hole 15 penetrating to the outside relative to the fixing hole 14, when the fixing plate 6 moves to the bottom of the machine body 1, the fixing pin 13 penetrates through the connecting hole 15 of the first supporting plate 3 to be inserted into the fixing hole 14, at the moment, the mounting part 25 is parallel to the bottom of the machine body 1, and the fixing plate 6 is located at the middle position of the bottom of the machine body 1. When the fixing plate 6 moves to the side wall of the machine body 1, the fixing pin 13 passes through the connecting hole 15 of the second supporting plate 4 to be inserted into the fixing hole 14, and the mounting portion 25 is parallel to the side wall of the machine body 1 and perpendicular to the second supporting plate 4.

Referring to fig. 3 and 4, the limiting strips 16 are fixedly connected between the first supporting plates 3 and between the second supporting plates 4, and when the fixing plate 6 moves to the bottom of the machine body 1 and one side of the fixing plate 6 away from the fixing hole 14 abuts against the limiting strips 16 of the first supporting plates 3, the mounting portion 25 is parallel to the bottom of the machine body 1 and the fixing hole 14 is aligned with the connecting hole 15 of the first supporting plate 3. When the fixing plate 6 moves to the side wall of the machine body 1 and abuts against the limiting bar 16 of the second supporting plate 4 at the side close to the fixing hole 14, the mounting portion 25 is parallel to the side wall of the machine body 1 and perpendicular to the second supporting plate 4. The coupling holes 15 of the second support plate 4 are aligned with the fixing holes 14 at this time.

Referring to fig. 3 and 5, the folding assembly 10 includes a hinge shaft 18 and a hinge plate 17, the hinge plate 17 is disposed at both sides of the supporting column 9 and is fixedly connected with the mounting portion 25, and the supporting column 9 is hingedly connected with the hinge plate 17 through the hinge shaft 18. The support column 9 has two sets and every group to have two, and two sets of support columns 9 symmetry respectively set up in the both sides of installation department 25 width direction, when overturning support column 9 towards the direction of being close to fixed plate 6 bottom until support column 9 is parallel with installation department 25, and wherein two support columns 9 of a set of are located between two support columns 9 of another set, are favorable to folding support column 9, reduce the volume.

Referring to fig. 3 and 5, a square latch hole 19 is opened at one side of the hinge shaft 18 adjacent to the hinge plate 17, the latch hole 19 extends through the hinge plate 17 to the outside, and when the latch hole 19 of the hinge shaft 18 is aligned with the latch hole 19 of the hinge plate 17, the latch 20 is inserted into the latch hole 19, and the supporting column 9 is parallel or perpendicular to the bottom of the fixing plate 6.

Referring to fig. 3 and 5, the supporting column 9 includes an inner column 21 and a column sleeve 22, the inner column 21 is hollow and is hinged to the hinge plate 17 at one side close to the fixing plate 6, the other side is slidably connected to the inside of the column sleeve 22, and a rotating shaft 23 is screwed at one side of the column sleeve 22 and is used for jacking the inner column 21 and fixing the adjusted height of the supporting column 9. The side of the column sleeve 22 far away from the fixed plate 6 is fixedly connected with a universal wheel 24 with a brake block, and the universal wheel can freely move or fix the machine body 1.

The use principle is as follows:

referring to fig. 1, remove fixed plate 6 to machine 1 bottom during the use, through fixed pin 13 fixed plate 6, adjust the height of support column 9 afterwards, through the fixed universal wheel 24 of brake block can carry out the tester operation, ground is kept away from to the tester this moment, and the staff need not to squat just can carry out the use of tester on ground.

Referring to fig. 3, when the tester needs to be moved during use, the cover 2 is closed, the fixing plate 6 is moved to the side wall of the machine body 1, and the fixing plate 6 is fixed by the fixing pin 13. At the moment, the brake pad is opened, and the tester can be easily moved by matching the handle with the machine body 1 with the universal wheel 24.

Referring to fig. 1 and 2, when the tester needs to be taken up after use, the fixing plate 6 is moved to the bottom of the machine body 1 and fixed by the fixing pin 13, then the inner column 21 of the supporting column 9 is retracted into the column sleeve 22, and the inner column 21 is jacked up by the rotating shaft 23. And then, the supporting column 9 is turned over towards the supporting column 9 on the other side until the supporting column 9 is parallel to the mounting part 25, and the plug pin 20 is inserted to complete the folding of the supporting column 9, so that a tester can be conveniently placed.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a return circuit resistance measuring apparatu, includes organism (1) of measuring apparatu, organism (1) one side articulates there is lid (2), its characterized in that: the bottom of the machine body (1) is symmetrically provided with first supporting plates (3) along the width direction, the side wall of one side of the machine body (1) is symmetrically provided with second supporting plates (4) along the width direction, the first supporting plates (3) and the second supporting plates (4) are fixedly connected at the same side, two first supporting plates (3) are respectively provided with a sliding rail (5), and the sliding rails (5) extend to the second supporting plates (4);

be provided with between slide rail (5) fixed plate (6), fixed plate (6) are provided with slide mechanism (7), fixed plate (6) slide in slide rail (5) through slide mechanism (7), first backup pad (3) and second backup pad (4) are provided with fixed subassembly (8) that are used for fixed plate (6) respectively, it is installation department (25) to keep away from organism (1) bottom one end when fixed plate (6) remove to first backup pad (3), installation department (25) are provided with height-adjustable's support column (9), support column (9) are provided with folding assembly (10) that can make support column (9) fold in fixed plate (6) bottom, support column (9) are provided with sliding assembly (11) that can freely slide or be fixed in ground.

2. The loop resistance measuring instrument according to claim 1, wherein: the sliding mechanism (7) comprises two sliding shafts (12), the two sliding shafts (12) are symmetrically fixed on two sides of the fixing plate (6), and the sliding shafts (12) are connected to the sliding rails (5) in a sliding mode.

3. A loop resistance measuring instrument according to claim 2, wherein: fixed subassembly (8) are including fixed pin (13) and fixed orifices (14), fixed orifices (14) are located fixed plate (6) with one side and offer in keeping away from sliding shaft (12) part with sliding shaft (12), connecting hole (15) have been seted up respectively to slide rail (5) inside of first backup pad (3) and second backup pad (4), fixed pin (13) pass connecting hole (15) and peg graft in fixed orifices (14).

4. A loop resistance measuring instrument according to claim 2, wherein: and limiting strips (16) used for limiting the sliding of the sliding shaft (12) are respectively arranged between the first supporting plates (3) and between the second supporting plates (4).

5. The loop resistance measuring instrument according to claim 1, wherein: folding assembly (10) are including articulated slab (17) and articulated shaft (18), support column (9) have two sets ofly and every group has two, a set of support column (9) symmetry sets up in installation department (25) one side and is close to marginal portion, another group support column (9) symmetry sets up in installation department (25) opposite side and is close to the intermediate position, support column (9) articulate between articulated slab (17) through the articulated shaft.

6. The loop resistance measuring instrument according to claim 5, wherein: square bolt holes (19) are respectively formed in two sides of the hinge shaft (18), the bolt holes (19) penetrate through the hinge plate (17) to the outside, bolts (20) are arranged on the hinge plate (17), and the bolts (20) are inserted in the bolt holes (19).

7. The loop resistance measuring instrument according to claim 6, wherein: support column (9) are including interior post (21) and column jacket (22), interior post (21) sliding connection is inside column jacket (22), column jacket (22) are provided with rotation axis (23) that are used for dieing interior post (21).

8. The loop resistance measuring instrument according to claim 7, wherein: the sliding assembly (11) comprises a universal wheel (24) with a brake pad.