CN216847950U

CN216847950U - Conductor direct current resistance test box

Info

Publication number: CN216847950U
Application number: CN202123144020.0U
Authority: CN
Inventors: 石书梅; 韩永强; 谢振华; 陈延伟; 朱珂
Original assignee: PINGDINGSHAN ELECTRIC POWER DESIGN INSTITUTE CO LTD
Current assignee: PINGDINGSHAN ELECTRIC POWER DESIGN INSTITUTE CO LTD
Priority date: 2021-12-14
Filing date: 2021-12-14
Publication date: 2022-06-28
Anticipated expiration: 2031-12-14

Abstract

The utility model discloses a conductor direct current resistance test box, including box, the temperature control device of setting in the box, set up visual window on the box, set up two supports in the recess of bottom half, sliding connection, two lead screws that run through the box, the through-hole has respectively been seted up to every support bottom, two lead screws respectively with the through-hole screw-thread fit of two supports, still set up stop gear on the lead screw. The utility model discloses need not open the chamber door and just can adjust the distance between two supports, and then make the constancy of temperature in the box within the certain limit, improved efficiency of software testing.

Description

Conductor direct current resistance test box

Technical Field

The utility model belongs to the technical field of the electric power test technique and specifically relates to a conductor direct current resistance test box is related to.

Background

When the direct current resistance of the conductor of the power transmission line is carried out, the influence of the temperature on the conductor needs to be calculated, but the obtained data does not have high reliability as the result of calculation through a formula in the past. At present, some test places utilize the constant temperature box to simulate the real temperature of the environment for testing, the obtained data is relatively accurate, but the limitation of the constant temperature box is relatively more.

Chinese patent publication No. CN206096262U discloses a constant temperature dc resistance testing device, which includes a box-type testing chamber, a testing space is provided inside the testing chamber, a temperature control device is provided at the side of the top of the testing chamber, and the constant temperature environment inside the testing chamber is controlled by the temperature control device; the bottom of test chamber is equipped with time-recorder, temperature sensor, direct current resistance display, and the time that the time-recorder shows, the temperature that temperature sensor surveyed, the resistance value that direct current resistance display shows all show on the display screen of device, and the device dwindles traditional constant temperature laboratory into a box structure, and it is little to occupy space, need not special confined constant temperature laboratory, has practiced thrift resource and electric energy. However, when the device adjusts the conductor, the test chamber needs to be opened, which causes damage to the constant temperature state and affects the test efficiency.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at prior art not enough, provide a conductor direct current resistance test box, reached and improved the efficiency of software testing effect.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a conductor direct current resistance test box, includes the box, sets up temperature control device in the box, sets up visual window on the box, sets up two supports in the recess of bottom half, sliding connection, runs through two lead screws of box, and the through-hole has respectively been seted up to every support bottom, two lead screws respectively with the through-hole screw-thread fit of two supports, still set up stop gear on the lead screw.

Furthermore, two first round holes communicated with the grooves are formed in the box body, and the two first round holes respectively penetrate through a screw rod.

Furthermore, the limiting mechanism comprises an annular groove formed in the lead screw, a round hole II formed in the bottom of the box body and a screw in the round hole II in threaded connection, and the bottom of the screw abuts against the annular groove.

Further, the support includes fixation clamp and bracing piece, and the fixation clamp is electrically conductive material, and the bracing piece is insulating material.

Furthermore, two round holes III are formed in the side wall of the box body, and the front end of the lead is connected with the fixing clamp and extends out of the round holes III.

Furthermore, the bottom of the groove and the bottom of the support rod are of T-shaped structures which are matched with each other.

Furthermore, scale marks are marked on the side edges of the groove.

The utility model has the advantages that:

1. the utility model provides a conductor direct current resistance test box can make support and lead screw rotate relatively through rotating the lead screw, because the support sets up in the recess, and the support can not the free rotation, can only follow lead screw axis direction and remove to need not open the chamber door just can adjust the distance between two supports, can make the constancy of temperature in the box within the certain limit. The limiting mechanism is arranged to enable the lead screw to move in a rotating mode only and cannot move axially.

2. The utility model discloses be provided with visual window on the box, state when can the direct observation conductor test. The utility model discloses the support includes fixation clamp and bracing piece, and the fixation clamp is electrically conductive material, and the bracing piece is insulating material, has seted up two round holes three on the box lateral wall, and the fixation clamp is connected to the wire front end and stretches out from round hole three, lets the direct card of conductor on the fixation clamp, need not be connected to the conductor on, the simplified operation flow. The bottom of the groove and the bottom of the supporting rod are of T-shaped structures matched with each other, so that the support is prevented from falling off from the groove easily. The side of the groove is marked with scale lines, so that the distance between the two brackets can be conveniently and accurately adjusted.

Drawings

Fig. 1 is a schematic structural diagram of a conductor direct-current resistance test box of the present invention;

fig. 2 is a schematic structural view of the bracket of the present invention;

fig. 3 is a schematic structural diagram of the screw connection of the present invention.

In the figure: the temperature control device comprises a box body 1, a temperature control device 2, a support 3, a lead 4, a groove 5, a visual window 6, a lead screw 7, a through hole 8, a fixing clamp 9, a support rod 10, a conductor 11, an annular groove 12, a screw 13, a circular hole I14, a scale mark 15, a circular hole III 16 and a circular hole II 17.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and 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.

As shown in FIGS. 1-3, a conductor direct current resistance test box comprises a box body 1, a temperature control device 2 arranged on the top of the box body 1, and a visual window 6 arranged on the box body 1, wherein the state of a conductor 11 in a test can be directly observed. A groove 5 arranged at the bottom of the box body 1.

Two supports 3 of sliding connection in recess 5, support 3 include fixation clamp 9 and bracing piece 10, and fixation clamp 9 is electrically conductive material, and bracing piece 10 is insulating material. Two round holes III 16 are formed in the side wall of the box body 1, and the front end of the lead 4 is connected with the fixing clamp 9 and extends out of the round holes III 16. The conductor 11 is directly clamped on the fixing clamp 9 without being connected to the conductor 11, and the operation process is simplified. The bottom of the groove 5 and the bottom of the support bar 10 are of T-shaped structures which are matched with each other. The support 3 is ensured not to easily fall off from the groove 5. The side of the groove 5 is marked with scale lines 15, so that the distance between the two brackets 3 can be conveniently and accurately adjusted.

Two screw rods 7 penetrating through the box body 1, two round holes 14 communicated with the groove 5 are formed in the box body 1, and the two round holes 14 respectively penetrate through one screw rod 7.

Through-hole 8 has respectively been seted up to every support 3 bottom, two lead screws 7 respectively with the 8 screw-thread fit of through-hole of two supports 3, can make support 3 and lead screw 7 rotate relatively through rotating lead screw 7, because support 3 sets up in recess 5, support 3 can not the free rotation, can only move along lead screw 7 axis direction to need not just can adjust the distance between two supports 3 by the division of chamber door, can make the constancy of temperature in box 1 within the certain limit. The screw rod 7 is further provided with a limiting mechanism, the limiting mechanism comprises an annular groove 12 formed in the screw rod 7 and a second round hole 17 formed in the bottom of the box body 1, the second round hole 17 is located between the groove 5 and the side wall of the box body 1, the screw 13 is in threaded connection with the second round hole 17, the bottom of the screw 13 abuts against the annular groove 12, and the limiting mechanism is arranged to enable the screw rod to move rotationally only and not to move axially.

When the testing device is used, the testing temperature can be adjusted to a specified range only through the temperature control device 2, and then the conductor 11 is placed on the fixing clamp 9 to perform a testing experiment. When the length of conductor 11 needs to be adjusted in the experimental process, conductor 11 is observed through visual window 6 and lead screw 7 is rotated according to scale mark 15, the distance between two supports 3 is adjusted, and the distance between two supports 3 can be adjusted without opening the box door on the premise of guaranteeing the test temperature.

Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and are not limited, and other modifications or equivalent replacements made by the technical solutions of the present invention by those of ordinary skill in the art should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.

Claims

1. A conductor direct current resistance test box which is characterized in that: the temperature control device comprises a box body (1), a temperature control device (2) arranged in the box body (1), a visible window (6) arranged on the box body (1), a groove (5) arranged at the bottom of the box body (1), two supports (3) connected in the groove (5) in a sliding manner, and two lead screws (7) penetrating through the box body (1), wherein a through hole (8) is respectively formed in the bottom of each support (3), the two lead screws (7) are respectively in threaded fit with the through holes (8) of the two supports (3), and a limiting mechanism is further arranged on each lead screw.

2. A conductor dc resistance test box according to claim 1, characterized in that: two first round holes (14) communicated with the grooves (5) are formed in the box body (1), and the two first round holes (14) penetrate through the lead screw (7) respectively.

3. A conductor dc resistance test box according to claim 1, characterized in that: stop gear is including offering ring channel (12) on lead screw (7), offering round hole two (17), screw (13) of threaded connection in round hole two (17) of box (1) bottom, screw (13) bottom is supported in ring channel (12).

4. A conductor dc resistance test box according to claim 3, characterized in that: the support (3) comprises a fixing clamp (9) and a supporting rod (10), the fixing clamp (9) is made of a conductive material, and the supporting rod (10) is made of an insulating material.

5. A conductor DC resistance test box according to claim 4, characterized in that: two round holes III (16) are formed in the side wall of the box body (1), and the front end of the lead (4) is connected with the fixing clamp (9) and extends out of the round holes III (16).

6. A conductor DC resistance test box according to claim 4, characterized in that: the bottom of the groove (5) and the bottom of the support rod (10) are of T-shaped structures which are matched with each other.

7. A conductor dc resistance test box according to claim 1, characterized in that: scale marks (15) are marked on the side edge of the groove (5).