CN213398721U

CN213398721U - Portable loop resistance tester

Info

Publication number: CN213398721U
Application number: CN202022300073.6U
Authority: CN
Inventors: 王依鸿
Original assignee: Shangqiu Tianzheng Power Engineering Co ltd
Current assignee: Shangqiu Tianzheng Power Engineering Co ltd
Priority date: 2020-10-16
Filing date: 2020-10-16
Publication date: 2021-06-08
Anticipated expiration: 2030-10-16

Abstract

The utility model discloses a portable return circuit resistance tester, the power distribution box comprises a box body, the slide rail has been seted up to inside one side of box, the internal surface sliding connection of slide rail has six groups of pulleys, six groups the other end fixedly connected with bottom plate of pulley, four electric jar of group of one side fixedly connected with of bottom plate, four groups the one end extension of electric jar is provided with the telescopic link, four groups the equal fixedly connected with supporting legs in one side of telescopic link, one side fixedly connected with tester body of bottom plate. The utility model discloses in, through the pulley and the slide rail sliding connection that set up, can be convenient for tester body roll-off box, can use manpower sparingly, through the electric jar and the telescopic link that set up, when the tester body was placed on the horizontal plane, can control the extension of telescopic link through the electric jar to support the tester body, through being roughening treatment with the bottom of supporting legs, can prevent the slip of whole device, can be convenient for placing of the tester body.

Description

Portable loop resistance tester

Technical Field

The utility model relates to a return circuit resistance tester field especially relates to a portable return circuit resistance tester.

Background

According to the requirements of the preventive test regulation DL/T596-1996 of the power equipment, the conducting loop resistance of various switch equipment is tested, and the test current of the conducting loop resistance is not less than 100A. Since the contact resistance is increased due to oxidation of the contact surface, poor contact fastening, and the like, and when a large current flows, the temperature of the contact point is increased, which further accelerates the oxidation of the contact surface, further increases the contact resistance, and serious accidents are continuously caused, it is necessary to measure the contact resistance frequently or periodically.

When the existing loop resistance tester is used, the internal equipment of the loop resistance tester is complex, so that the loop resistance tester is inconvenient to carry, and secondly, when the existing portable loop resistance tester is used, the lock catch is locked inconveniently, so that people cannot use the portable loop resistance tester conveniently.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a portable loop resistance tester.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a portable loop resistance tester comprises a box body, wherein a slide rail is arranged on one side in the box body, six groups of pulleys are connected to the inner surface of the slide rail in a sliding mode, the other ends of the six groups of pulleys are fixedly connected with a bottom plate, four groups of electric cylinders are fixedly connected to one side of the bottom plate, telescopic rods are arranged at one ends of the four groups of electric cylinders in an extending mode, supporting legs are fixedly connected to one sides of the four groups of telescopic rods, and a tester body is fixedly connected to one side of the bottom plate;

the front end and the rear end of the box body are respectively provided with a third sliding groove, the inner surface of the third sliding groove is connected with a second sliding block in a sliding manner, one side of the second sliding block is fixedly connected with a sliding plate, the upper end of the sliding plate is provided with two groups of first clamping grooves, the upper ends of the two groups of first clamping grooves are clamped with clamping strips, one side of the box body is fixedly connected with two groups of shells, one sides of the two groups of shells away from the box body are connected with a rotating shaft in a penetrating manner, the outer surface of the rotating shaft is fixedly connected with a fixing ring, one side of the rotating shaft is fixedly connected with a rotating block, the rotating block is positioned at one side of the shell, the fixing ring is positioned in the shell, the outer surface of the rotating shaft is fixedly connected with a driving gear, the inner wall of one side of the shell close to the, the transmission gear strip is meshed with the driving gear, one end of the transmission gear strip is fixedly connected with the clamping strip, and the lower end of the sliding plate is fixedly connected with the universal wheel.

As a further description of the above technical solution:

one side fixedly connected with first slider of the tester body, the inside of box is provided with the buffer board.

As a further description of the above technical solution:

the lower extreme fixedly connected with buffer block of the tester body, the second spout has been seted up to the upper end of slide, second spout and buffer block sliding connection.

As a further description of the above technical solution:

a first sliding groove is formed in one side of the buffer plate, the first sliding block is connected with the first sliding groove in a sliding mode, and a handle is fixedly connected to the lower end of the buffer plate.

As a further description of the above technical solution:

one side fixedly connected with fixture block of slide, the second draw-in groove has been seted up to one side inner wall of box, fixture block and second draw-in groove joint.

As a further description of the above technical solution:

the back of the box body is fixedly connected with a pull rod, and the rotating block is arranged in a cylindrical shape.

As a further description of the above technical solution:

the casing is located the upper end of slide, solid fixed ring is located between commentaries on classics piece and the driving gear.

As a further description of the above technical solution:

the supporting legs are arranged in a round table shape, and the four groups of electric cylinders are positioned between the six groups of pulleys.

The utility model discloses following beneficial effect has:

1. the utility model discloses a pulley and slide rail sliding connection that set up, the tester body roll-off box of can being convenient for can use manpower sparingly, through the electric jar and the telescopic link that set up, when the tester body was placed on the horizontal plane, can control the extension of telescopic link through the electric jar to support the tester body, through being the roughening treatment with the bottom of supporting legs, can prevent that whole device from sliding, the placing of the tester body of can being convenient for.

2. The utility model discloses an universal wheel and the pull rod that set up, the removal of whole device of can being convenient for.

3. The utility model discloses a commentaries on classics piece that sets up can make the pivot rotate, and the driving gear rotates, further drives the removal of driving gear strip, and the card strip card is gone into in the first draw-in groove to accomplish the locking of slide and box, can lock slide and box fast.

4. The utility model discloses a buffer board and the buffer block that set up can carry out the shock attenuation to the tester body to play the effect of protection.

Drawings

Fig. 1 is a front cross-sectional view of a portable loop resistance tester provided by the present invention;

fig. 2 is a side view of a portable loop resistance tester provided by the present invention;

fig. 3 is a schematic perspective view of internal parts of a casing of the portable loop resistance tester provided by the present invention;

fig. 4 is a cross-sectional view of a housing of a portable loop resistance tester provided by the present invention;

FIG. 5 is an enlarged view of A in FIG. 1;

fig. 6 is an enlarged view of B in fig. 1.

Illustration of the drawings:

1. a box body; 2. testing the instrument body; 3. a pull rod; 4. a first chute; 5. a first slider; 6. a housing; 7. rotating the block; 8. clamping the strip; 9. a first card slot; 10. a slide plate; 11. a buffer plate; 12. a handle; 13. a buffer block; 14. a universal wheel; 15. a clamping block; 16. a second chute; 17. a pulley; 18. a slide rail; 19. a base plate; 20. a second slider; 21. a third chute; 22. a drive gear rack; 23. a driving gear; 24. a rotating shaft; 25. a fixing ring; 26. a third slider; 27. an electric cylinder; 28. a telescopic rod; 29. support the feet.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-6, the present invention provides an embodiment: a portable loop resistance tester comprises a box body 1, wherein a slide rail 18 is arranged on one side in the box body 1, six groups of pulleys 17 are slidably connected to the inner surface of the slide rail 18, a bottom plate 19 is fixedly connected to the other end of each pulley 17, four groups of electric cylinders 27 are fixedly connected to one side of the bottom plate 19, a telescopic rod 28 is arranged at one end of each electric cylinder 27 in an extending mode, supporting legs 29 are fixedly connected to one sides of the four groups of telescopic rods 28, roughening treatment is carried out on the bottoms of the supporting legs 29, the whole device can be prevented from sliding on a horizontal plane, the supporting legs 29 are arranged in a circular table shape, when the tester is horizontally placed, the telescopic rods 28 are controlled to extend through the electric cylinders 27, the whole tester body 2 can be jacked up until the bottommost end of each pulley 17 is higher than the topmost end of each supporting leg 29 in the vertical direction, and the placement of, the four groups of electric cylinders 27 are positioned between six groups of pulleys 17, one side of the bottom plate 19 is fixedly connected with the tester body 2, sliding friction can be changed into rolling friction through the sliding connection between the pulleys 17 and the sliding rails 18, so that the frictional force between the tester body 2 and the box body 1 is reduced, manpower is saved, one side of the tester body 2 is fixedly connected with a first sliding block 5, the inside of the box body 1 is provided with a buffer plate 11, the material used by the buffer plate 11 is rubber, the tester body 2 can be damped, so that the tester body 2 is protected, one side of the buffer plate 11 is provided with a first sliding groove 4, the first sliding block 5 is in sliding connection with the first sliding groove 4, the lower end of the buffer plate 11 is fixedly connected with a handle 12, the buffer plate 11 can be conveniently taken out and placed, and the lower end of the tester body 2 is fixedly connected with a buffer block 13, second spout 16 has been seted up to slide 10's upper end, second spout 16 and buffer block 13 sliding connection, the used material of buffer block 13 are rubber, can provide the protection for the tester body 2, the back fixed connection pull rod 3 of box 1 can be convenient for people stimulate whole device, commentaries on classics piece 7 is cylindrical setting.

The front end and the rear end of the box body 1 are respectively provided with a third sliding chute 21, the inner surface of the third sliding chute 21 is connected with a second sliding block 20 in a sliding manner, one side of the second sliding block 20 is fixedly connected with a sliding plate 10 which can facilitate the taking out and placing of the sliding plate 10, the upper end of the sliding plate 10 is provided with two groups of first clamping grooves 9, the upper ends of the two groups of first clamping grooves 9 are clamped with clamping strips 8, one side of the box body 1 is fixedly connected with two groups of shells 6, one sides of the two groups of shells 6 far away from the box body 1 are connected with a rotating shaft 24 in a penetrating manner, the outer surface of the rotating shaft 24 is fixedly connected with a fixing ring 25, one side of the rotating shaft 24 is fixedly connected with a rotating block 7, the rotating block 7 is positioned at one side of the shells 6, the fixing ring 25 is positioned inside the shell body 6, the inner surface of the fourth chute is connected with a third sliding block 26 in a sliding manner, one side of the third sliding block 26 is fixedly connected with a transmission gear strip 22, the transmission gear strip 22 can be moved conveniently through the sliding connection between the third sliding block 26 and the fourth chute, and can also play a role in limiting the transmission gear strip 22, the transmission gear strip 22 is meshed with a driving gear 23, one end of the transmission gear strip 22 is fixedly connected with a clamping strip 8, a rotating shaft 24 is rotated through rotating a rotating block 7, the driving gear 23 is rotated, so that the transmission gear strip 22 is driven to move upwards, the clamping strip 8 moves upwards to leave the inside of the first clamping groove 9, the sliding plate 10 is pulled, the sliding plate 10 slides with the third chute 21 until the sliding plate 10 is taken out, the locking and the dismounting of the sliding plate 10 and the box body 1 can be facilitated, the lower end of the sliding plate 10 is fixedly connected with a universal wheel 14, and the whole device can be moved conveniently, one side fixedly connected with fixture block 15 of slide 10, the second draw-in groove has been seted up to one side inner wall of box 1, fixture block 15 and second draw-in groove joint, casing 6 is located slide 10's upper end, solid fixed ring 25 is located between commentaries on classics piece 7 and the driving gear 23, can restrict the position of commentaries on classics piece 7 and driving gear 23 through solid fixed ring 25 that sets up.

The working principle is as follows: firstly, the box body 1 is pulled through the pull rod 3, the universal wheel 14 at the bottom end of the box body 1 slides on the horizontal plane until the box body 1 is moved to a test point, the whole device is horizontally placed, then the rotating block 7 is rotated, the rotating shaft 24 rotates, the driving gear 23 rotates, so that the driving gear strip 22 is driven to move upwards, the clamping strip 8 moves upwards to leave the inside of the first clamping groove 9, the sliding plate 10 is pulled, the sliding plate 10 and the third sliding groove 21 slide until the sliding plate 10 is taken out, then the buffer block 13 is pulled, the pulley 17 and the sliding rail 18 slide until the test instrument body 2 completely slides out of the box body 1, the electric cylinder 27 is started, the telescopic rod 28 extends, the whole test instrument body 2 is jacked up, and the placement of the test instrument body 2 is completed until the height of the bottommost end of the pulley 17 in the vertical direction is higher than.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a portable return circuit resistance tester, includes box (1), its characterized in that: a sliding rail (18) is arranged on one side inside the box body (1), six groups of pulleys (17) are connected to the inner surface of the sliding rail (18) in a sliding mode, the other ends of the six groups of pulleys (17) are fixedly connected with a bottom plate (19), four groups of electric cylinders (27) are fixedly connected to one side of the bottom plate (19), telescopic rods (28) extend from one ends of the four groups of electric cylinders (27), supporting legs (29) are fixedly connected to one sides of the four groups of telescopic rods (28), and a tester body (2) is fixedly connected to one side of the bottom plate (19);

third chutes (21) are formed in the front end and the rear end of the box body (1), second sliding blocks (20) are connected to the inner surfaces of the third chutes (21) in a sliding manner, sliding plates (10) are fixedly connected to one sides of the second sliding blocks (20), two sets of first clamping grooves (9) are formed in the upper ends of the sliding plates (10), clamping strips (8) are clamped to the upper ends of the first clamping grooves (9), two sets of shells (6) are fixedly connected to one side of the box body (1), a rotating shaft (24) is connected to one side, far away from the box body (1), of the shells (6) in a penetrating manner, fixing rings (25) are fixedly connected to the outer surfaces of the rotating shaft (24), rotating blocks (7) are fixedly connected to one side of the rotating shaft (24), the rotating blocks (7) are located on one side of the shells (6), the fixing rings (25) are located inside the shell body (6), and driving gears (23, the utility model discloses a slide board, including casing (6), the internal surface sliding connection of casing (6) has third slider (26), one side fixedly connected with driving gear strip (22) of third slider (26), driving gear strip (22) and driving gear (23) intermeshing, the one end and the card strip (8) fixed connection of driving gear strip (22), the lower extreme fixedly connected with universal wheel (14) of slide (10).

2. The portable loop resistance tester of claim 1, wherein: one side fixedly connected with first slider (5) of tester body (2), the inside of box (1) is provided with buffer board (11).

3. The portable loop resistance tester of claim 1, wherein: the lower extreme fixedly connected with buffer block (13) of tester body (2), second spout (16) have been seted up to the upper end of slide (10), second spout (16) and buffer block (13) sliding connection.

4. The portable loop resistance tester of claim 2, wherein: first spout (4) have been seted up to one side of buffer board (11), first slider (5) and first spout (4) sliding connection, the lower extreme fixedly connected with handle (12) of buffer board (11).

5. The portable loop resistance tester of claim 1, wherein: one side fixedly connected with fixture block (15) of slide (10), the second draw-in groove has been seted up to one side inner wall of box (1), fixture block (15) and second draw-in groove joint.

6. The portable loop resistance tester of claim 1, wherein: the back of the box body (1) is fixedly connected with the pull rod (3), and the rotating block (7) is arranged in a cylindrical shape.

7. The portable loop resistance tester of claim 1, wherein: the shell (6) is located at the upper end of the sliding plate (10), and the fixing ring (25) is located between the rotating block (7) and the driving gear (23).

8. The portable loop resistance tester of claim 1, wherein: the supporting legs (29) are arranged in a circular truncated cone shape, and the four groups of electric cylinders (27) are located between the six groups of pulleys (17).