CN215526010U

CN215526010U - Ultralow frequency withstand voltage tester

Info

Publication number: CN215526010U
Application number: CN202121602736.8U
Authority: CN
Inventors: 段浪
Original assignee: Tianjin Jiangtian Data Technology Co ltd
Current assignee: Tianjin Jiangtian Data Technology Co ltd
Priority date: 2021-07-15
Filing date: 2021-07-15
Publication date: 2022-01-14
Anticipated expiration: 2031-07-15

Abstract

The utility model discloses an ultralow frequency withstand voltage tester which comprises a protective box, wherein the bottom of an inner cavity of the protective box is fixedly connected with a double-shaft motor, an output shaft of the double-shaft motor is fixedly connected with a threaded rod, and the surface of the threaded rod is sleeved with a threaded sleeve. According to the utility model, through the matching of the double-shaft motor, the threaded rod, the threaded sleeve, the lifting rod, the sliding sleeve, the baffle plate, the telescopic rod, the first spring, the buffer plate, the driving wheel, the second spring and the driving block, the buffer plate is preliminarily buffered under the action of the telescopic rod and the first spring, the buffer plate drives the driving block to move downwards through the driving wheel and is buffered through the second spring, the buffering effect is improved, the output shaft of the double-shaft motor drives the threaded sleeve to move through the threaded rod, the threaded sleeve drives the baffle plate to move upwards through the lifting rod and the sliding sleeve, the height of the tester can be adjusted according to the height of a user, so that the effect of high protection performance is achieved, and the problem of poor protection performance of the existing device is solved.

Description

Ultralow frequency withstand voltage tester

Technical Field

The utility model relates to the technical field of ultralow frequency withstand voltage testers, in particular to an ultralow frequency withstand voltage tester.

Background

The ultra-low frequency insulation voltage-withstand test is actually an alternative method of the power frequency voltage-withstand test, and we know that when the power frequency voltage-withstand test is carried out on large-scale generators, cables and other test articles, the insulation layers of the large-scale generators, the cables and other test articles have larger capacitance, so a large-capacity test transformer or resonance transformer is needed, such huge equipment is heavy, high in manufacturing cost and inconvenient to use, in order to solve the contradiction, the power department adopts the mode of reducing the test frequency, so that the capacity of a test power supply is reduced, theories and practices for years at home and abroad prove that the ultra-low frequency voltage-withstand test is used for replacing the power frequency voltage-withstand test, the ultra-low frequency voltage-withstand test not only has the same equivalence, but also greatly reduces the volume of the equipment, greatly lightens the weight, theoretically has the capacity of about one fifth percent of the power frequency, is simple to operate, has more superiority compared with the power frequency voltage-withstand test, the existing ultra-low frequency voltage-withstand test instrument has poor protective performance, reducing the safety.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an ultralow frequency withstand voltage tester which has the advantage of high protection performance and solves the problem of poor protection performance of the existing device.

In order to achieve the purpose, the utility model provides the following technical scheme: an ultralow frequency withstand voltage tester comprises a protective box, wherein a double-shaft motor is fixedly connected to the bottom of an inner cavity of the protective box, a threaded rod is fixedly connected to an output shaft of the double-shaft motor, a threaded sleeve is sleeved on the surface of the threaded rod, a lifting rod is movably connected to the top of the threaded sleeve, a sliding sleeve is movably connected to the other end of the lifting rod, a sliding rod is slidably connected to the inner cavity of the sliding sleeve, a baffle is arranged in the inner cavity of the protective box, a buffer box is fixedly connected to the top of the baffle, a telescopic rod is fixedly connected to the inner cavity of the buffer box, a first spring is sleeved on the surface of the telescopic rod, a buffer plate is fixedly connected to the other end of the telescopic rod, a driving wheel is fixedly connected to one side of the buffer plate, a second spring is fixedly connected to the bottom of the inner cavity of the buffer box, and a driving block is fixedly connected to the other end of the second spring, and a box cover is arranged at the top of the protection box.

Preferably, the number of the threaded rods is two, and the thread directions of the surfaces of the two threaded rods are opposite.

Preferably, the bottom of the baffle is provided with a groove, and the sliding rod is fixedly connected to an inner cavity of the groove.

Preferably, one end of the first spring is fixedly connected with an inner cavity of the buffer box, and the other end of the first spring is fixedly connected with one side of the buffer plate.

Preferably, the driving block is trapezoidal in shape, and a wear-resistant layer is arranged on the surface of the inclined surface of the driving block.

Preferably, the left side and the right side of the baffle are fixedly connected with limiting pulleys, and the other ends of the limiting pulleys are connected with limiting grooves in a sliding mode.

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

1. according to the utility model, through the matching of the double-shaft motor, the threaded rod, the threaded sleeve, the lifting rod, the sliding sleeve, the baffle plate, the telescopic rod, the first spring, the buffer plate, the driving wheel, the second spring and the driving block, the buffer plate is preliminarily buffered under the action of the telescopic rod and the first spring, the buffer plate drives the driving block to move downwards through the driving wheel and is buffered through the second spring, the buffering effect is improved, the output shaft of the double-shaft motor drives the threaded sleeve to move through the threaded rod, the threaded sleeve drives the baffle plate to move upwards through the lifting rod and the sliding sleeve, the height of the tester can be adjusted according to the height of a user, so that the effect of high protection performance is achieved, and the problem of poor protection performance of the existing device is solved.

2. The two threaded sleeves are convenient to move oppositely by designing the opposite thread directions on the surfaces of the two threaded rods, the service life of the driving block is prolonged by designing the wear-resistant layer, and the baffle plate is convenient to limit by matching the limiting pulley and the limiting groove.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1;

FIG. 3 is a front sectional view of the buffer box structure of the present invention.

In the figure: 1. a protective box; 2. a double-shaft motor; 3. a threaded rod; 4. a threaded sleeve; 5. a lifting bar; 6. a sliding sleeve; 7. a slide bar; 8. a baffle plate; 9. a buffer tank; 10. a telescopic rod; 11. a first spring; 12. a buffer plate; 13. a drive wheel; 14. a second spring; 15. a drive block; 16. a box cover; 17. a groove; 18. a limiting pulley; 19. a limiting groove.

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.

Referring to fig. 1-3, an ultra-low frequency withstand voltage tester comprises a protective box 1, a double-shaft motor 2 is fixedly connected to the bottom of an inner cavity of the protective box 1, output shafts of the double-shaft motor 2 are fixedly connected with threaded rods 3, the number of the threaded rods 3 is two, the thread directions of the surfaces of the two threaded rods 3 are opposite, so that two thread sleeves 4 can move oppositely, the service life of a driving block 15 is prolonged by designing a wear-resistant layer, a baffle 8 is convenient to limit by matching of a limiting pulley 18 and a limiting groove 19, the surface of the threaded rod 3 is sleeved with a thread sleeve 4, the top of the thread sleeve 4 is movably connected with a lifting rod 5, the other end of the lifting rod 5 is movably connected with a sliding sleeve 6, the inner cavity of the sliding sleeve 6 is slidably connected with a sliding rod 7, the inner cavity of the protective box 1 is provided with the baffle 8, the bottom of the baffle 8 is provided with a groove 17, the slide bar 7 is fixedly connected with an inner cavity of the groove 17, the left side and the right side of the baffle plate 8 are both fixedly connected with limiting pulleys 18, the other end of each limiting pulley 18 is slidably connected with a limiting groove 19, the top of the baffle plate 8 is fixedly connected with a buffer box 9, the inner cavity of the buffer box 9 is fixedly connected with a telescopic rod 10, the surface of each telescopic rod 10 is sleeved with a first spring 11, one end of each first spring 11 is fixedly connected with the inner cavity of the buffer box 9, the other end of each first spring 11 is fixedly connected with one side of a buffer plate 12, the other end of each telescopic rod 10 is fixedly connected with a buffer plate 12, one side of each buffer plate 12 is fixedly connected with a driving wheel 13, the bottom of the inner cavity of the buffer box 9 is fixedly connected with a second spring 14, the other end of each second spring 14 is fixedly connected with a driving block 15, the driving block 15 is trapezoidal in shape, the surface of the inclined plane of the driving block 15 is provided with a wear-resistant layer, and the top of the protection box 1 is provided with a box cover 16, through biaxial motor 2, the threaded rod 3, the thread bush 4, the lifting rod 5, the sliding sleeve 6, baffle 8, telescopic link 10, first spring 11, buffer board 12, drive wheel 13, the cooperation of second spring 14 and drive block 15, effect through telescopic link 10 and first spring 11, tentatively cushion buffer board 12, buffer board 12 drives drive block 15 downstream through drive wheel 13, and cushion through second spring 14, improve the buffering effect, the output shaft of biaxial motor 2 passes through threaded rod 3 and drives thread bush 4 and remove, thread bush 4 drives baffle 8 rebound through lifting rod 5 and sliding sleeve 6, can adjust the height of tester according to user's height, thereby reach the effect that the barrier propterty is high, the poor problem of current device barrier propterty has been solved.

During the use, through the effect of telescopic link 10 and first spring 11, preliminarily cushion buffer plate 12, buffer plate 12 drives drive block 15 downstream through drive wheel 13, and cushion through second spring 14, improve buffering effect, the output shaft of double-shaft motor 2 passes through threaded rod 3 and drives thread bush 4 and remove, thread bush 4 drives 8 rebound of baffle through lifting rod 5 and sliding sleeve 6, can adjust the height of tester according to user's height, thereby reach the effect that barrier propterty is high.

In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent. In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that 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

1. The utility model provides an ultralow frequency withstand voltage tester, includes protective housing (1), its characterized in that: the bottom fixedly connected with biax motor (2) of protective housing (1) inner chamber, the output shaft fixedly connected with threaded rod (3) of biax motor (2), the surface cover of threaded rod (3) is equipped with thread bush (4), the top swing joint of thread bush (4) has lifter (5), the other end swing joint of lifter (5) has sliding sleeve (6), the inner chamber sliding connection of sliding sleeve (6) has slide bar (7), the inner chamber of protective housing (1) is provided with baffle (8), the top fixedly connected with baffle-box (9) of baffle (8), the inner chamber fixedly connected with telescopic link (10) of baffle-box (9), the surface cover of telescopic link (10) is equipped with first spring (11), the other end fixedly connected with buffer board (12) of telescopic link (10), one side fixedly connected with drive wheel (13) of buffer board (12), the bottom of the inner cavity of the buffer box (9) is fixedly connected with a second spring (14), the other end of the second spring (14) is fixedly connected with a driving block (15), and the top of the protective box (1) is provided with a box cover (16).

2. The ultra-low frequency withstand voltage tester according to claim 1, characterized in that: the number of the threaded rods (3) is two, and the thread directions of the surfaces of the two threaded rods (3) are opposite.

3. The ultra-low frequency withstand voltage tester according to claim 1, characterized in that: the bottom of baffle (8) is provided with recess (17), slide bar (7) fixed connection is in the inner chamber of recess (17).

4. The ultra-low frequency withstand voltage tester according to claim 1, characterized in that: one end of the first spring (11) is fixedly connected with the inner cavity of the buffer box (9), and the other end of the first spring (11) is fixedly connected with one side of the buffer plate (12).

5. The ultra-low frequency withstand voltage tester according to claim 1, characterized in that: the driving block (15) is trapezoidal in shape, and a wear-resistant layer is arranged on the surface of the inclined surface of the driving block (15).

6. The ultra-low frequency withstand voltage tester according to claim 1, characterized in that: the left side and the right side of the baffle (8) are fixedly connected with limiting pulleys (18), and the other ends of the limiting pulleys (18) are connected with limiting grooves (19) in a sliding mode.