CN216117863U

CN216117863U - Portable alternating current-direct current power frequency withstand voltage test device

Info

Publication number: CN216117863U
Application number: CN202121407932.XU
Authority: CN
Inventors: 李雷
Original assignee: Wuhan Sikari Technology Co ltd
Current assignee: Wuhan Sikari Technology Co ltd
Priority date: 2021-06-24
Filing date: 2021-06-24
Publication date: 2022-03-22
Anticipated expiration: 2031-06-24

Abstract

The utility model discloses a portable alternating current-direct current power frequency voltage withstand test device which comprises supporting legs, a lower box body, an upper box body, a rocking handle, a supporting frame and a liftable test mechanism, wherein the lower box body is a hollow cavity structure with an opening at the upper end, the supporting legs are rotatably hinged to the bottom of the supporting frame, the upper box body is a hollow cavity structure with an opening at the lower end, the upper box body is hinged to the top of the lower box body, the liftable test mechanism is fixedly connected with the inner bottom wall of the lower box body, the rocking handle rotatably penetrates through the side wall of the lower box body and is fixedly connected with the liftable test mechanism, and the liftable test mechanism comprises a driving assembly, a connecting rod assembly, a lifting table and a test transformer. The utility model belongs to the technical field of power frequency voltage withstand test devices, and particularly relates to a portable alternating current/direct current power frequency voltage withstand test device which is small in size, convenient to store and carry, and capable of adjusting and supporting the height of the device during use.

Description

Portable alternating current-direct current power frequency withstand voltage test device

Technical Field

The utility model belongs to the technical field of power frequency voltage withstand test devices, and particularly relates to a portable alternating current/direct current power frequency voltage withstand test device.

Background

The power frequency withstand voltage test device is widely applied to electrician manufacturing departments, electric power operation departments, scientific research units and universities and colleges. The power frequency withstand voltage test device is divided into an integrated device (below 30 kV) and a split device. The control box (platform) is composed of a contact voltage regulator (more than 50kVA is an electric column voltage regulator) and a control, protection, measurement and signal circuit thereof. The method comprises the steps of accessing a 220V or 380V power frequency power supply, adjusting a voltage regulator (namely the input voltage of a test transformer), accessing a primary winding of a high-voltage test transformer, and obtaining a required test high-voltage value according to an electromagnetic induction principle. According to the test regulations, various large-scale power transformers, power cables, turbines, hydraulic generators and other capacitive equipment must be strictly and periodically subjected to alternating current withstand voltage tests. However, the existing power frequency withstand voltage test device has the following defects: current power frequency withstand voltage test device need support it with the help of external support frame, nevertheless leads to increasing the part of power frequency withstand voltage test device like this, and then the not convenient to use person carries power frequency withstand voltage test device, and current support frame can only support power frequency withstand voltage test device moreover, and then has reduced the function of support frame. Therefore, there is a need for improvement to solve the above problems.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model provides the portable alternating current/direct current power frequency voltage withstand test device which is small in size, convenient to store and carry and capable of adjusting and supporting the height of the device in use.

In order to realize the functions, the technical scheme adopted by the utility model is as follows: a portable alternating current-direct current power frequency withstand voltage test device comprises supporting legs, a lower box body, an upper box body, a rocking handle, a support frame and a liftable test mechanism, wherein the lower box body is a hollow cavity structure with an opening at the upper end, the supporting legs are rotatably hinged to the bottom of the support frame, the upper box body is a hollow cavity structure with an opening at the lower end, the upper box body is hinged to the top of the lower box body, the liftable test mechanism is fixedly connected with the inner bottom wall of the lower box body, the rocking handle rotatably penetrates through the side wall of the lower box body and is fixedly connected with the liftable test mechanism, the liftable test mechanism comprises a driving assembly, a connecting rod assembly, a lifting platform and a test transformer, the driving assembly is fixedly arranged on the inner bottom wall of the lower box body, two ends of the driving assembly are respectively fixedly connected with the rocking handle and the connecting rod assembly, two ends of the driving assembly are respectively hinged with the lower box body and the lifting platform, the test transformer is fixed to be located the elevating platform top, and when needing to carry out withstand voltage test, rotatory landing leg makes landing leg and ground perpendicular, opens the upper box, exposes the test transformer of the inside, and rotatory rocking handle drives the motion of link assembly, drives the elevating platform and carries out the lift regulation, conveniently tests.

Further, the driving assembly comprises a first gear, a first connecting rod, a second gear, a limiting sleeve, a sliding rod, a driving rod, a second connecting rod, a screw and a threaded sleeve, the rocking handle is fixedly connected with the screw, the threaded sleeve is sleeved outside the screw, an internal thread matched with the screw is arranged in the threaded sleeve, the screw is fixedly connected with the driving rod, the driving rod is fixedly connected with the sliding rod, two ends of the first connecting rod are respectively fixedly connected with the second connecting rod and the driving rod, the limiting sleeve is fixedly connected with the lower box body, the sliding rod can slidably penetrate through the limiting sleeve, a first rack is fixedly arranged on the sliding rod, a second rack is fixedly arranged on the second connecting rod, the first gear and the second gear are respectively fixedly connected with the connecting rod assembly, the first gear is meshed with the first rack, the second gear is meshed with the second rack, and the rocking handle drives the screw to rotate, the slide rod is driven to slide along the limiting sleeve through the transmission action of the threaded sleeve, the first gear and the second gear are driven to rotate through the meshing action of the first rack and the second rack, and therefore the height of the lifting platform is adjusted through the connecting rod assembly.

Further, the support frame includes articulated support one and articulated support two, an articulated support both ends are articulated with landing leg and articulated support two respectively, articulated support two is articulated with lower box, support frame one be equipped with the arch on the articulated support two, be equipped with the recess corresponding with the arch on the articulated support one, when the landing leg is in the state of closing, the support frame also is in fold condition, when the landing leg is in the state of opening and when perpendicular to the ground, articulated support one and articulated support two are in the state of straightening, at this moment, in the arch on the articulated support two fell into the recess on the articulated support one, prevented articulated support one and articulated support two further emergence relative rotation to support frame and perpendicular to the ground have been guaranteed.

Furthermore, the bottom of the lower box body is hinged with rollers.

Further, a handle is fixedly arranged on the side wall of the lower box body

The utility model adopts the structure to obtain the following beneficial effects: the portable alternating current-direct current power frequency voltage withstand test device provided by the utility model has the functions of transportation, storage and test assistance, the supporting legs can be folded and are convenient to store, the rocking handle is shaken in a test state, the lifting platform is driven by the driving firmware to be lifted and adjusted, the effect of the workbench is achieved, and the test is convenient.

Drawings

FIG. 1 is a schematic structural diagram of a portable AC/DC power frequency withstand voltage test device according to the present invention;

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

FIG. 3 is a structural diagram of a liftable testing mechanism of the portable AC/DC power frequency withstand voltage testing device of the utility model;

fig. 4 is a structural diagram of a driving assembly of the portable ac/dc power frequency withstand voltage test device according to the present invention.

The device comprises a support leg 1, a support leg 2, a lower box body 3, an upper box body 4, a rocking handle 5, a support frame 6, a lifting test mechanism 7, a driving assembly 8, a connecting rod assembly 9, a lifting table 10, a test transformer 11, a first gear 12, a first connecting rod 13, a second gear 14, a limiting sleeve 15, a sliding rod 16, a driving rod 17, a second connecting rod 18, a screw rod 19, a threaded sleeve 20, a handle 21, a first hinged support 22, a second hinged support 23, a first rack 24, a second rack 25, a protrusion 26, a groove 27 and a roller.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. 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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1-4, the portable ac/dc power frequency withstand voltage test device of the utility model comprises a supporting leg 1, a lower box 2, an upper box 3, a rocking handle 4, a supporting frame 5 and a liftable test mechanism 6, wherein the lower box 2 is a hollow cavity structure with an open upper end, the supporting leg 1 is rotatably hinged at the bottom of the supporting frame 5, the upper box 3 is a hollow cavity structure with an open lower end, the upper box 3 is hinged at the top of the lower box 2, the liftable test mechanism 6 is fixedly connected with the inner bottom wall of the lower box 2, the rocking handle 4 rotatably penetrates through the side wall of the lower box 2 and is fixedly connected with the liftable test mechanism 6, the liftable test mechanism 6 comprises a driving component 7, a connecting rod component 8, a lifting platform 9 and a test transformer 10, the driving component 7 is fixedly arranged on the inner bottom wall of the lower box 2, two ends of the driving component 7 are respectively fixedly connected with the rocking handle 4 and the connecting rod component 8, and two ends of the connecting rod assembly 8 are respectively hinged with the lower box body 2 and the lifting platform 9, and the test transformer 10 is fixedly arranged at the top of the lifting platform 9.

The driving assembly 7 comprises a first gear 11, a first connecting rod 12, a second gear 13, a limiting sleeve 14, a sliding rod 15, a driving rod 16, a second connecting rod 17, a screw 18 and a threaded sleeve 19, the rocking handle 4 is fixedly connected with the screw 18, the threaded sleeve 19 is sleeved outside the screw 18, an internal thread matched with the screw 18 is arranged in the threaded sleeve 19, the screw 18 is fixedly connected with the driving rod 16, the driving rod 16 is fixedly connected with the sliding rod 15, two ends of the first connecting rod 12 are respectively fixedly connected with the second connecting rod 17 and the driving rod 16, the limiting sleeve 14 is fixedly connected with the lower box body 2, the sliding rod 15 can slidably penetrate through the limiting sleeve 14, a first rack 23 is fixedly arranged on the sliding rod 15, a second rack 24 is fixedly arranged on the second connecting rod 17, the first gear 11 and the second gear 13 are respectively fixedly connected with the connecting rod assembly 8, the first gear 11 is meshed with the first rack 23, the second gear 13 is meshed with the second rack 24.

The support frame 5 includes a first hinged support 21 and a second hinged support 22, the two ends of the first hinged support 21 are hinged to the supporting leg 1 and the second hinged support 22 respectively, the second hinged support 22 is hinged to the lower box body 2, the support frame 5 is provided with a protrusion 25 on the second hinged support 22, and a groove 26 corresponding to the protrusion 25 is formed in the first hinged support 21.

The bottom of the lower box body 2 is hinged with a roller 27.

A handle 20 is fixedly arranged on the side wall of the lower box body 2.

When the device is used specifically, articles required by a pressure resistance test are placed in a space formed by the upper box body 3 and the lower box body 2, the device is conveyed to a proper position through the idler wheel 27 by the pulling handle 20, the landing leg 1 is rotated to enable the landing leg 1 to be perpendicular to the ground, the protrusion 25 on the second hinge support 22 falls into the groove 26 on the first hinge support 21, the first hinge support 21 and the second hinge support 22 are prevented from further relative rotation, the landing leg 1 is supported and fixed, the upper box body 3 is opened, the inside test transformer 10 is exposed, the rocking handle 4 is rotated, the rocking handle 4 drives the screw rod 18 to rotate, the sliding rod 15 is driven to slide along the limiting sleeve 14 through the transmission effect of the threaded sleeve 19, the first gear 11 and the second gear 13 are driven to rotate through the meshing effect of the first rack 23 and the second rack 24, the height of the lifting platform 9 is adjusted through the connecting rod assembly 8, and the test is convenient.

The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. The utility model provides a portable alternating current-direct current power frequency withstand voltage test device which characterized in that: comprises supporting legs, a lower box body, an upper box body, a rocking handle, a supporting frame and a lifting test mechanism, wherein the lower box body is a hollow cavity structure with an opening at the upper end, the supporting legs are rotatably hinged at the bottom of the supporting frame, the upper box body is a hollow cavity structure with an opening at the lower end, the upper box body is hinged on the top of the lower box body, the liftable testing mechanism is fixedly connected with the inner bottom wall of the lower box body, the rocking handle can rotatably penetrate through the side wall of the lower box body and is fixedly connected with a liftable test mechanism, the liftable test mechanism comprises a driving assembly, a connecting rod assembly, a lifting table and a test transformer, the driving component is fixedly arranged on the inner bottom wall of the lower box body, two ends of the driving component are respectively and fixedly connected with the rocking handle and the connecting rod component, the two ends of the connecting rod assembly are hinged to the lower box body and the lifting platform respectively, and the test transformer is fixedly arranged at the top of the lifting platform.

2. The portable alternating current-direct current power frequency withstand voltage test device of claim 1, characterized in that: the driving assembly comprises a first gear, a first connecting rod, a second gear, a limiting sleeve, a sliding rod, a driving rod, a second connecting rod, a screw and a threaded sleeve, the rocking handle is fixedly connected with the screw, the threaded sleeve is sleeved outside the screw, an internal thread matched with the screw is arranged in the threaded sleeve, the screw is fixedly connected with the driving rod, the driving rod is fixedly connected with the sliding rod, two ends of the first connecting rod are fixedly connected with the second connecting rod and the driving rod respectively, the limiting sleeve is fixedly connected with a lower box body, the sliding rod can slide to penetrate through the limiting sleeve, a first rack is fixedly arranged on the sliding rod, a second rack is fixedly arranged on the second connecting rod, the first gear and the second gear are fixedly connected with a connecting rod assembly respectively, the first gear is meshed with the first rack, and the second gear is meshed with the second rack.

3. The portable alternating current-direct current power frequency withstand voltage test device of claim 2, characterized in that: the support frame includes articulated support one and articulated support two, articulated support one both ends are articulated with landing leg and articulated support two respectively, articulated support two is articulated with lower box, support frame one be equipped with the arch on the articulated support two, be equipped with the recess corresponding with the arch on the articulated support one.

4. The portable alternating current-direct current power frequency withstand voltage test device of claim 3, characterized in that: the bottom of the lower box body is hinged with rollers.

5. The portable alternating current-direct current power frequency withstand voltage test device of claim 4, characterized in that: and a handle is fixedly arranged on the side wall of the lower box body.