CN216870784U - Accurate calibration equipment of transformation ratio tester - Google Patents
Accurate calibration equipment of transformation ratio tester Download PDFInfo
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- CN216870784U CN216870784U CN202123307867.6U CN202123307867U CN216870784U CN 216870784 U CN216870784 U CN 216870784U CN 202123307867 U CN202123307867 U CN 202123307867U CN 216870784 U CN216870784 U CN 216870784U
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- transformation ratio
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Abstract
The utility model discloses an accurate calibration device of a transformation ratio tester, which comprises a protective shell, wherein a sliding seat is fixed at the bottom of the inner side of the protective shell, sliding grooves are symmetrically formed in the top of the sliding seat, a sliding block is arranged inside the sliding grooves, and a screw rod penetrates through the sliding grooves and the sliding block. According to the utility model, when the transformation ratio tester needs to be checked, the screw rod is rotated, the screw rod drives the sliding blocks to mutually approach through the external threads, the sliding blocks drive the lifting seat to move upwards through the transmission rod, so that the lifting seat drives the resistance variable box to move upwards, the resistance variable box is moved out of the protective shell, after the resistance variable box is used, the screw rod is rotated reversely, so that the screw rod drives the resistance variable box to retract into the protective shell, meanwhile, the resistance variable box drives the box cover to abut against an opening of the protective shell, the protective shell is sealed, the resistance variable box is protected when placed through the arranged inner tube of the protective shell, and the damage of the resistance variable box caused by collision is avoided.
Description
Technical Field
The utility model relates to the technical field of a transformation ratio tester, in particular to an accurate calibration device of the transformation ratio tester.
Background
The transformation ratio tester is a new generation intelligent transformation ratio tester which takes a single chip microcomputer as a core to perform measurement calculation and automatic control and has a full Chinese menu operation interface and the advantages of visual display, good stability, high precision, wide measurement range, no need of a three-phase power supply on site and the like.
Although the types and the number of the current accurate calibration devices of the transformation ratio tester are very large, the existing accurate calibration devices of the transformation ratio tester still have certain problems, and certain inconvenience is brought to the use of the accurate calibration devices of the transformation ratio tester.
The accurate calibration equipment of current transformation ratio tester is when using, and the protectiveness is relatively poor, receives the collision easily and leads to damaging, and inconvenient use, consequently the urgent need can improve the technique of the accurate calibration equipment structure of transformation ratio tester, perfects this device.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an accurate calibration device of a transformation ratio tester, and solves the problems that the existing accurate calibration device of the transformation ratio tester is poor in protection performance, is easy to damage due to collision and is inconvenient to use when in use.
In order to achieve the purpose, the utility model provides the following technical scheme: an accurate calibration device of a transformation ratio tester comprises a protective shell, a sliding seat is fixed at the bottom of the inner side of the protective shell, sliding grooves are symmetrically arranged at the top of the sliding seat, sliding blocks are arranged inside the sliding grooves, wherein,
a screw rod penetrates through the sliding groove and the inside of the sliding block, two sections of opposite external threads are arranged on the screw rod, the screw rod is in threaded connection with the sliding block, the end part of the screw rod penetrates through the inside of the protective shell and extends to the outside, the top of the sliding block is rotatably connected with a transmission rod, the top of the transmission rod is rotatably connected with a lifting seat, a variable resistance box is installed at the top of the lifting seat, and a box cover is installed at the top of the variable resistance box;
protective housing has seted up the guide way near lift seat both sides inner wall, the lift seat is fixed with the guide block near guide way one side, guide block and guide way sliding connection, varistor case the place ahead one side is provided with adjust knob, the varistor case is close to adjust knob one side and installs the display screen, the top bilateral symmetry of varistor case is provided with the wiring mechanism.
Preferably, the top of the box cover is rotatably connected with a handle.
Preferably, the guide groove and the guide block are T-shaped.
Preferably, the top of the two sides of the varistor box is symmetrically fixed with terminals, one side of the varistor box, which is close to the terminals, is rotatably connected with a rotating frame, a compression block is fixed at the end part of the rotating frame, which is close to the terminals, a spring is fixed at the bottom of the rotating frame, which is far away from the compression block, the spring is connected with the varistor box, and anti-skidding teeth are arranged at the top of the terminals and at the bottom of the compression block.
Preferably, the anti-slip teeth between the binding posts and the pressing blocks are arranged in a staggered mode.
Compared with the prior art, the utility model has the following beneficial effects:
1. according to the utility model, when the transformation ratio tester needs to be checked, the screw rod is rotated, the screw rod drives the sliding blocks to mutually approach through the external threads, the sliding blocks drive the lifting seat to move upwards through the transmission rod, so that the lifting seat drives the resistance variable box to move upwards, the resistance variable box is moved out of the protective shell, after the resistance variable box is used, the screw rod is rotated reversely, so that the screw rod drives the resistance variable box to retract into the protective shell, meanwhile, the resistance variable box drives the box cover to abut against an opening of the protective shell, the protective shell is sealed, the resistance variable box is protected when placed through the arranged inner tube of the protective shell, and the damage of the resistance variable box caused by collision is avoided.
2. According to the utility model, when the lifting seat drives the resistance-changing box to lift, the lifting seat drives the guide block to move in the guide groove, and the lifting seat and the resistance-changing box are guided to lift through the guide structure formed by the guide block and the guide groove, so that the lifting seat and the resistance-changing box are prevented from being shifted in lifting.
3. According to the utility model, when the wiring of the transformation ratio tester and the transformation ratio tester is required, the transformation ratio tester is moved out of the protective shell, then the rotating frame is pressed, the spring is compressed, the pressing block is far away from the wiring terminal, the electrical connection wire of the transformation ratio tester is placed between the wiring terminal and the pressing block, then the rotating frame is loosened, the spring pushes the rotating frame to rotate, the rotating frame drives the pressing block to move towards the wiring terminal, the electrical connection wire is clamped and fixed through the pressing block and the wiring terminal, and the wiring of the transformation ratio tester and the transformation ratio tester is facilitated.
4. According to the utility model, when the wire connecting line is clamped by the pressing block and the binding post, the anti-slip teeth arranged in a staggered manner are contacted with the wire connecting line, so that the friction among the binding post, the pressing block and the wire connecting line is increased, the binding post and the wire connecting line are conveniently and stably connected, and the wire connecting line is prevented from easily falling off.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1A;
fig. 3 is a schematic perspective view of the turret of the present invention.
In the figure: 1. a protective housing; 2. a sliding seat; 3. a chute; 4. a slider; 5. a screw rod; 6. a transmission rod; 7. a lifting seat; 8. a resistance-changing box; 9. a box cover; 10. a handle; 11. a guide groove; 12. a guide block; 13. adjusting a knob; 14. a display screen; 15. a binding post; 16. a rotating frame; 17. a compression block; 18. a spring; 19. and (4) anti-slip teeth.
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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example (b):
referring to fig. 1 to 3, the present invention provides a technical solution: an accurate calibration device of a transformation ratio tester comprises a protective shell 1, a sliding seat 2 is fixed at the bottom of the inner side of the protective shell 1, sliding chutes 3 are symmetrically arranged at the top of the sliding seat 2, sliding blocks 4 are arranged inside the sliding chutes 3, wherein,
a screw rod 5 penetrates through the sliding chute 3 and the inside of the sliding block 4, the end part of the screw rod 5 penetrates through the inside of the protective shell 1 and extends to the outside, the top of the sliding block 4 is rotatably connected with a transmission rod 6, the top of the transmission rod 6 is rotatably connected with a lifting seat 7, the top of the lifting seat 7 is provided with a resistance-changing box 8, the top of the resistance-changing box 8 is provided with a box cover 9, and the top of the box cover 9 is rotatably connected with a handle 10;
protective housing 1 is close to 7 both sides inner walls of lift seat and has seted up guide way 11, and lift seat 7 is close to guide way 11 one side and is fixed with guide block 12, and 8 the place ahead one side of varistor box is provided with adjust knob 13, and varistor box 8 is close to adjust knob 13 one side and installs display screen 14, and the top bilateral symmetry of varistor box 8 is provided with the wiring mechanism.
Referring to fig. 1, two sections of opposite external threads are arranged on a screw rod 5, the screw rod 5 and a slider 4 form a threaded connection, the slider 4 and a lifting seat 7 form a transmission structure through a transmission rod 6, when a transformation ratio tester needs to be checked, the screw rod 5 is rotated, the screw rod 5 drives the slider 4 to approach each other through the external threads, the slider 4 drives the lifting seat 7 to move upwards through the transmission rod 6, the lifting seat 7 drives a varistor box 8 to move upwards, the varistor box 8 is moved out of a protective shell 1, after the varistor box 8 is used, the screw rod 5 is rotated reversely, the screw rod 5 drives the varistor box 8 to retract into the protective shell 1, the varistor box 8 drives a box cover 9 to abut against an opening of the protective shell 1, the protective shell 1 is sealed, the varistor box 8 is protected when placed through an inner tube of the protective shell 1, and damage caused by collision to the varistor box 8 is avoided, the guide groove 11 and the guide block 12 are T-shaped, the guide groove 11 and the guide block 12 form a guide structure, when the lifting seat 7 drives the varistor box 8 to lift, the lifting seat 7 drives the guide block 12 to move in the guide groove 11, and the lifting seat 7 and the varistor box 8 are guided by the guide structure formed by the guide block 12 and the guide groove 11, so that the lifting seat 7 and the varistor box 8 are prevented from being lifted and shifted;
referring to fig. 1 to 3, terminals 15 are symmetrically fixed on the top of two sides of a varistor box 8, one side of the varistor box 8 close to the terminal 15 is rotatably connected with a rotating frame 16, a pressing block 17 is fixed on the end of the rotating frame 16 close to the terminal 15, a spring 18 is fixed on the bottom of the rotating frame 16 far from the pressing block 17, anti-slip teeth 19 are arranged on the top of the terminal 15 and the bottom of the pressing block 17, when a ratio tester needs to be connected with the varistor box 8, the varistor box 8 is moved out of a protective housing 1, then the rotating frame 16 is pressed, the spring 18 is compressed, the pressing block 17 is far away from the terminal 15, an electrical connection line of the ratio tester is placed between the terminal 15 and the pressing block 17, then the rotating frame 16 is released, the spring 18 pushes the rotating frame 16 to rotate, the rotating frame 16 drives the pressing block 17 to move towards the terminal 15, and the electrical connection line is clamped and fixed through the pressing block 17 and the terminal 15, be convenient for to become and hinder case 8 with to the wiring of transformation ratio tester, 19 dislocation sets of antiskid tooth between terminal 15 and the compact heap 17, when carrying out the centre gripping to the wire connection line through compact heap 17 and terminal 15, 19 and the wire connection line that contact through the antiskid tooth that the dislocation set up, increase terminal 15, the friction between compact heap 17 and the wire connection line, be convenient for make terminal 15 and wire connection line stable connection, avoid the wire connection line to drop easily.
The working principle is as follows: this accurate calibration equipment of transformation ratio tester, when needing to check up the transformation ratio tester, handle through 5 tip of lead screw rotates lead screw 5, and lead screw 5 drives slider 4 through the external screw thread and is close to each other, and slider 4 drives lift seat 7 rebound through transfer line 6, makes lift seat 7 drive 8 rebound of varistor case, shifts out protective housing 1 with varistor case 8, and varistor case 8 removes the back that finishes, locks the handle, avoids lead screw 5 to rotate. After the resistance-changing box 8 is used, the lead screw 5 is rotated reversely, the lead screw 5 drives the resistance-changing box 8 to be retracted into the protective shell 1, meanwhile, the resistance-changing box 8 drives the box cover 9 to abut against an opening of the protective shell 1, the protective shell 1 is sealed, the resistance-changing box 8 is protected when placed through the arranged inner tube of the protective shell 1, the damage caused by collision to the resistance-changing box 8 is avoided, when the resistance-changing box 8 is driven to lift by the lifting seat 7, the guide block 12 is driven by the lifting seat 7 to move in the guide groove 11, the lifting seat 7 and the resistance-changing box 8 are guided through the guide structure formed by the guide block 12 and the guide groove 11, and the deviation generated by the lifting seat 7 and the resistance-changing box 8 is avoided;
when needing to work a telephone switchboard to transformation ratio tester and varistor box 8, shift out protective housing 1 with varistor box 8, later press down turret 16, spring 18 compresses, make compact heap 17 keep away from terminal 15, place the electrical connection line to the transformation ratio tester between terminal 15 and compact heap 17, later loosen turret 16, spring 18 promotes turret 16 and rotates, make turret 16 drive compact heap 17 and remove to terminal 15, it is fixed to carry out the centre gripping to the electrical connection line through compact heap 17 and terminal 15, be convenient for work a telephone switchboard to varistor box 8 and to the transformation ratio tester, simultaneously contact with the wire connection through dislocation set's anti-skidding tooth 19, increase terminal 15, the friction between compact heap 17 and the wire connection line, be convenient for make terminal 15 and wire connection line stable connection, avoid the wire connection line to drop easily.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides an accurate calibration equipment of transformation ratio tester, includes protecting sheathing (1), its characterized in that: a sliding seat (2) is fixed at the bottom of the inner side of the protective shell (1), sliding grooves (3) are symmetrically formed in the top of the sliding seat (2), sliding blocks (4) are arranged inside the sliding grooves (3),
a screw rod (5) penetrates through the sliding groove (3) and the sliding block (4), two sections of opposite external threads are arranged on the screw rod (5), the screw rod (5) is in threaded connection with the sliding block (4), the end part of the screw rod (5) penetrates through the interior of the protective shell (1) and extends to the outside, the top of the sliding block (4) is rotatably connected with a transmission rod (6), the top of the transmission rod (6) is rotatably connected with a lifting seat (7), a resistance-changing box (8) is installed at the top of the lifting seat (7), and a box cover (9) is installed at the top of the resistance-changing box (8);
protective housing (1) is close to lift seat (7) both sides inner wall and has seted up guide way (11), lift seat (7) are close to guide way (11) one side and are fixed with guide block (12), guide block (12) and guide way (11) sliding connection, varistor box (8) the place ahead one side is provided with adjust knob (13), varistor box (8) are close to adjust knob (13) one side and install display screen (14), the top bilateral symmetry of varistor box (8) is provided with wiring mechanism.
2. The precise calibration device of the transformation ratio tester as claimed in claim 1, wherein: the top of the box cover (9) is rotatably connected with a handle (10).
3. The precise calibration device of the transformation ratio tester as claimed in claim 1, wherein: the guide groove (11) and the guide block (12) are T-shaped.
4. The precise calibration device of the transformation ratio tester as claimed in claim 1, wherein: the wiring mechanism comprises a wiring terminal (15), the wiring terminal (15) is symmetrically fixed to the tops of the two sides of the varistor box (8), one side, close to the wiring terminal (15), of the varistor box (8) is rotatably connected with a rotating frame (16), a pressing block (17) is fixed to the end portion, close to the wiring terminal (15), of the rotating frame (16), a spring (18) is fixed to the bottom, far away from the pressing block (17), of the rotating frame (16), the spring (18) is connected with the varistor box (8), and anti-skidding teeth (19) are arranged on the tops of the wiring terminal (15) and the bottom of the pressing block (17).
5. The precise calibration device of the transformation ratio tester as claimed in claim 4, wherein: and anti-skid teeth (19) between the binding posts (15) and the pressing blocks (17) are arranged in a staggered manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123307867.6U CN216870784U (en) | 2021-12-24 | 2021-12-24 | Accurate calibration equipment of transformation ratio tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123307867.6U CN216870784U (en) | 2021-12-24 | 2021-12-24 | Accurate calibration equipment of transformation ratio tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216870784U true CN216870784U (en) | 2022-07-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123307867.6U Active CN216870784U (en) | 2021-12-24 | 2021-12-24 | Accurate calibration equipment of transformation ratio tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216870784U (en) |
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2021
- 2021-12-24 CN CN202123307867.6U patent/CN216870784U/en active Active
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