CN216696413U

CN216696413U - Portable frequency converter tester

Info

Publication number: CN216696413U
Application number: CN202123284736.0U
Authority: CN
Inventors: 魏清明; 戴春锋; 魏萍
Original assignee: Changzhou Ruihu Automation Technology Co ltd
Current assignee: Changzhou Ruihu Automation Technology Co ltd
Priority date: 2021-12-24
Filing date: 2021-12-24
Publication date: 2022-06-07
Anticipated expiration: 2031-12-24

Abstract

The utility model discloses a portable frequency converter tester, which comprises a box body, wherein a placing cavity is formed in the box body, a tester body is placed and installed in the placing cavity, cavities are formed in two sides of the bottom end of the box body, a first movable plate is arranged in each cavity, a second movable plate is fixedly installed on one side of the bottom end of each first movable plate, supporting rods are fixedly installed at one ends of the second movable plates, sleeves are sleeved on the outer sides of the supporting rods, return springs are fixedly installed at the top ends of the supporting rods, the other ends of the return springs are fixedly connected with the inner walls of the sleeves, first sawtooth plates are fixedly installed at the bottom ends of the first movable plates, and gears are meshed and connected with one sides of the first sawtooth plates. This kind of portable converter tester, when the artifical position that needs to be changed tests the converter, the universal wheel that stretches out can effectual supplementary staff remove the box, need not to remove the box to promote the efficiency of test, increased the convenience of structure.

Description

Portable frequency converter tester

Technical Field

The utility model relates to the technical field of frequency converter testers, in particular to a portable frequency converter tester.

Background

The frequency converter is an electric control device which applies a frequency conversion technology and a microelectronic technology and controls an alternating current motor by changing the frequency mode of a working power supply of the motor. The frequency converter mainly comprises a rectifying unit (alternating current to direct current), a filtering unit, an inverting unit (direct current to alternating current), a braking unit, a driving unit, a detection unit micro-processing unit and the like. The frequency converter adjusts the voltage and frequency of an output power supply by switching on and off an internal IGBT, provides the required power supply voltage according to the actual requirement of the motor, and further achieves the purposes of energy saving and speed regulation. Along with the continuous improvement of industrial automation degree, the converter has also obtained very extensive application, when using the converter, can use the tester to allocate it, but the staff of being not convenient for of current converter tester mostly carries it, when changing the test object when taking the test, need remove equipment, leads to the staff can't promote the efficiency to the converter test. Therefore, the portable frequency converter tester is improved.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems, the utility model provides the following technical scheme:

the utility model relates to a portable frequency converter tester, which comprises a box body, wherein a placing cavity is arranged inside the box body, the tester body is arranged in the placing cavity, two sides of the bottom end of the box body are provided with cavities, a first moving plate is arranged in each cavity, a second moving plate is fixedly arranged on one side of the bottom end of each first moving plate, one end of the second movable plate is fixedly provided with a support rod, the outer side of the support rod is sleeved with a sleeve, the top ends of the supporting rods are fixedly provided with return springs, the other ends of the return springs are fixedly connected with the inner wall of the sleeve, the bottom end of the first moving plate is fixedly provided with a first sawtooth plate, one side of the first sawtooth plate is engaged and connected with a gear, the other side of gear all the meshing is connected with second serration board, the bottom of second serration board all fixed mounting have the universal wheel.

As a preferred technical scheme of the present invention, three damping springs are fixedly installed inside the placement cavity, a stabilizing plate is fixedly installed at the top end of each damping spring, and the tester body is placed and installed to the top end of the stabilizing plate.

As a preferred technical scheme of the utility model, a cover body is arranged at the top end of the box body, a handle is fixedly mounted at the top end of the cover body, slots are formed in both sides of the cover body, fixing rods are inserted into the slots, pull rings are fixedly mounted at one ends of the fixing rods, limiting springs are sleeved on the outer sides of the fixing rods, and fixing slots are formed in both sides of the box body.

As a preferable technical scheme of the utility model, the outer side of the handle is provided with the non-slip mat, and the outer side of the non-slip mat is uniformly provided with the rubber particles.

As a preferred technical solution of the present invention, fixed sleeve blocks are fixedly mounted at the top ends of the cavities, connecting rods are inserted into the fixed sleeve blocks, one ends of the connecting rods extend to the outer sides of the fixed sleeve blocks, one ends of the connecting rods are fixedly connected to the outer wall of the first moving plate, one ends of the second moving plate extend to the outer side of the box body, one side of each sleeve is fixedly connected to the outer side of the box body, two sides of each gear are connected to the inner wall of the cavity through a rotating shaft, and the bottom ends of the universal wheels extend to the outer side of the box body.

As a preferable technical scheme of the utility model, one end of each limit spring is fixedly connected with the outer side of the pull ring, and the other end of each limit spring is fixedly connected with the outer wall of the cover body.

As a preferable technical solution of the present invention, one end of the fixing rod is inserted into the fixing groove, and both the one end of the fixing rod and the fixing groove are in a slope shape.

The utility model has the beneficial effects that:

1. this kind of portable converter tester, through setting up first serration plate, gear and second serration plate, place when testing subaerial converter at the box, make the bracing piece drive first movable plate rebound, can remove first serration plate in the outside of gear, make second serration plate rebound, make the universal wheel stretch out the outside of box, need to change the position when testing the converter in the manual work, the universal wheel that stretches out can effectual assistant working personnel remove the box, need not to remove the box, thereby the efficiency of test has been promoted, the convenience of structure has been increased.

2. This kind of portable converter tester, through setting up dead lever and spacing spring, the elasticity of spacing spring can be with the firm both sides of fixing at the box of dead lever, makes the firm top of fixing at the box of lid, and the effectual staff of being convenient for is to the switch and the carrying of box.

3. This kind of portable converter tester, through setting up damping spring and steadying plate, damping spring's elasticity can carry out effectual absorption with the tester body at the inside pressure that rocks that produces of box to the stability of structure has been increased.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a schematic front sectional view of a portable frequency converter tester of the present invention;

FIG. 2 is a schematic front view of a portable frequency converter tester of the present invention;

FIG. 3 is an enlarged schematic view of a portion of FIG. 1A of the portable frequency converter tester of the present invention;

fig. 4 is a partial perspective view of a portable frequency converter tester according to the present invention.

In the figure: 1. a box body; 2. a placement chamber; 3. a damping spring; 4. a stabilizing plate; 5. a tester body; 6. a cover body; 7. a handle; 8. a non-slip mat; 9. a cavity; 10. fixing the sleeve block; 11. a connecting rod; 12. a first moving plate; 13. a second moving plate; 14. a support bar; 15. a sleeve; 16. a return spring; 17. a first serrated plate; 18. a gear; 19. a second serration plate; 20. a universal wheel; 21. inserting slots; 22. fixing the rod; 23. a pull ring; 24. a limiting spring; 25. and fixing the grooves.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

The embodiment is as follows: as shown in fig. 1-4, the portable frequency converter tester of the utility model comprises a box body 1, a placing cavity 2 is arranged inside the box body 1, a tester body 5 is arranged inside the placing cavity 2, cavities 9 are arranged on two sides of the bottom end of the box body 1, a first moving plate 12 is arranged inside the cavities 9, a second moving plate 13 is fixedly arranged on one side of the bottom end of the first moving plate 12, a supporting rod 14 is fixedly arranged on one end of the second moving plate 13, a sleeve 15 is sleeved outside the supporting rod 14, a return spring 16 is fixedly arranged on the top end of the supporting rod 14, the other end of the return spring 16 is fixedly connected with the inner wall of the sleeve 15, a first sawtooth plate 17 is fixedly arranged on the bottom end of the first moving plate 12, a gear 18 is meshed with one side of the first sawtooth plate 17, a second sawtooth plate 19 is meshed with the other side of the gear 18, the bottom ends of the second sawtooth plates 19 are all fixedly provided with universal wheels 20.

Wherein, the inside fixed mounting who places chamber 2 has damping spring 3, damping spring 3's quantity is three, damping spring 3's top fixed mounting has steadying plate 4, tester body 5 places the top of installing to steadying plate 4, utilizes damping spring 3's inertia, and it absorbs tester body 5 rocks produced pressure in box 1 is inside, makes tester body 5 stable in box 1's inside, prevents to cause the damage to tester body 5.

Wherein, the top of box 1 is provided with lid 6, the top fixed mounting of lid 6 has handle 7, slot 21 has all been seted up to the both sides of lid 6, slot 21's inside is all inserted and is installed dead lever 22, the all fixed mounting of one end of dead lever 22 has pull ring 23, the outside of dead lever 22 all cup joints and installs spacing spring 24, fixed slot 25 has all been seted up to the both sides of box 1, utilize spacing spring 24's inertia, with the firm top of fixing at box 1 of lid 6, the staff of being convenient for carries box 1.

Wherein, the outside of handle 7 is provided with slipmat 8, and the outside of slipmat 8 evenly is provided with rubber granule, utilizes the characteristic of slipmat 8, when the staff pulling handle 7 carries box 1, increases frictional force to staff's palm.

Wherein, the top of cavity 9 is fixed mounting all has fixed nest block 10, fixed nest block 10's inside is all inserted and is installed connecting rod 11, connecting rod 11's one end all extends to the outside of fixed nest block 10, connecting rod 11's one end all with the outer wall fixed connection of first movable plate 12, the one end of second movable plate 13 all extends to the outside of box 1, one side of sleeve 15 all with the outside fixed connection of box 1, the both sides of gear 18 all are through the pivot and the interior wall connection of cavity 9, the bottom of universal wheel 20 all extends to the outside of box 1, utilize fixed nest block 10 and connecting rod 11 effectual the moving direction who has stabilized first movable plate 12.

One end of the limiting spring 24 is fixedly connected to the outer side of the pull ring 23, and the other end of the limiting spring 24 is fixedly connected to the outer wall of the cover 6.

One end of the fixing rod 22 is inserted into the fixing groove 25, and both the fixing rod 22 and the fixing groove 25 are in a slope shape.

The working principle is as follows: when the worker uses the box body 1, the worker can carry the box body 1 by pulling the handle 7, when the worker uses the tester body 5, the worker pulls the pull ring 23 to extrude the limiting spring 24, so that the fixing rod 22 is separated from the inside of the fixing groove 25, the cover body 6 can be taken down from the top end of the box body 1, when the box body 1 is placed on the ground by a worker, the support bar 14 contacts the ground, and then the return spring 16 is compressed, so that the support bar 14 moves upward, and at the same time the second moving plate 13 moves upward, thereby driving the first moving plate 12 to move upward, making the first serration plate 17 slide upward outside the gear 18, at the same time, the second serration plate 19 slides downwards on the outer side of the gear 18, so that the universal wheel 20 extends out of the outer side of the box body 1, when a worker needs to test a frequency converter with short distance, the box body 1 can be directly dragged to the side of the frequency converter for testing; after the staff's test finishes, utilize the staff to install lid 6 to the top of box 1, utilize spacing spring 24's inertia, with the firm top of fixing at box 1 of lid 6, after the staff took up box 1, reset spring 16 kick-backs down, makes the bracing piece 14 stretch out the outside of sleeve 15, can make universal wheel 20 shrink to the inside of box 1, has made things convenient for carrying and using of staff to box 1.

Finally, it should be noted that: in the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be 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 meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

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 changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A portable frequency converter tester comprises a box body (1) and is characterized in that a placing cavity (2) is formed in the box body (1), a tester body (5) is placed and installed in the placing cavity (2), cavities (9) are formed in two sides of the bottom end of the box body (1), first movable plates (12) are arranged in the cavities (9), second movable plates (13) are fixedly installed on one sides of the bottom ends of the first movable plates (12), supporting rods (14) are fixedly installed at one ends of the second movable plates (13), sleeves (15) are sleeved on the outer sides of the supporting rods (14), reset springs (16) are fixedly installed at the top ends of the supporting rods (14), the other ends of the reset springs (16) are fixedly connected with the inner walls of the sleeves (15), first sawtooth plates (17) are fixedly installed at the bottom ends of the first movable plates (12), one side of first serration plate (17) all meshes and is connected with gear (18), the opposite side of gear (18) all meshes and is connected with second serration plate (19), the bottom of second serration plate (19) all fixed mounting have universal wheel (20).

2. The portable frequency converter tester according to claim 1, wherein the placing cavity (2) is fixedly provided with three damping springs (3), the top ends of the damping springs (3) are fixedly provided with stabilizing plates (4), and the tester body (5) is placed and mounted on the top ends of the stabilizing plates (4).

3. The portable frequency converter tester as claimed in claim 1, wherein a cover body (6) is arranged at the top end of the box body (1), a handle (7) is fixedly mounted at the top end of the cover body (6), slots (21) are formed in both sides of the cover body (6), fixing rods (22) are inserted into the slots (21), pull rings (23) are fixedly mounted at one ends of the fixing rods (22), limiting springs (24) are sleeved on the outer sides of the fixing rods (22), and fixing grooves (25) are formed in both sides of the box body (1).

4. The portable frequency converter tester according to claim 3, wherein the outer side of the handle (7) is provided with a non-slip mat (8), and the outer side of the non-slip mat (8) is uniformly provided with rubber particles.

5. The portable frequency converter tester according to claim 1, wherein a fixed sleeve block (10) is fixedly mounted at the top end of the cavity (9), a connecting rod (11) is inserted into the fixed sleeve block (10), one end of the connecting rod (11) extends to the outside of the fixed sleeve block (10), one end of the connecting rod (11) is fixedly connected with the outer wall of the first moving plate (12), one end of the second moving plate (13) extends to the outside of the box body (1), one side of the sleeve (15) is fixedly connected with the outside of the box body (1), two sides of the gear (18) are connected with the inner wall of the cavity (9) through a rotating shaft, and the bottom end of the universal wheel (20) extends to the outside of the box body (1).

6. The portable frequency converter tester as claimed in claim 3, wherein one end of the limit spring (24) is fixedly connected with the outside of the pull ring (23), and the other end of the limit spring (24) is fixedly connected with the outer wall of the cover body (6).

7. The portable frequency converter tester according to claim 3, wherein one end of the fixing rod (22) is inserted and installed inside the fixing groove (25), and both the one end of the fixing rod (22) and the fixing groove (25) are in a slope shape.