Convenient frequency converter maintenance device

Abstract

The utility model relates to the field of maintenance devices, in particular to a convenient frequency converter maintenance device which comprises a working table, supporting legs are arranged at the bottom of the working table, the supporting legs are hinged to the bottoms of the supporting legs, an operation table is arranged at the top of the working table, and a plurality of sinking grooves for placing articles are formed in the operation table. A blocking cover is arranged on the periphery, located behind the operation table, of the workbench, a material cleaning groove of a strip-shaped through hole structure is formed in the portion, located below the blocking cover, of the workbench, a dust collecting box with an opening in the top is arranged below the material cleaning groove and detachably connected with the workbench, and a dust collector is further arranged on the workbench. The input end of the dust collector is a telescopic dust collection pipe extending to the upper end of the workbench. The utility model is beneficial for solving the problems of dust raising and impurity leakage easily caused by fixed main body structures and no external shielding structures of some existing overhauling devices.

Description

Technical Field

[0001] The utility model relates to the field of maintenance devices, in particular to a convenient frequency converter maintenance device. Background Technique

[0002] A frequency converter is a power control device that applies frequency conversion technology and microelectronics technology to control an AC motor by changing the working power frequency of the motor. The frequency converter mainly consists of a rectifier, a filter, an inverter, a braking unit, a drive unit, a detection unit, a microprocessing unit, etc. The frequency converter adjusts the voltage and frequency of the output power supply by the on-off of the internal IGBT, provides the required power supply voltage according to the actual needs of the motor, and thus achieves the purpose of energy saving and speed regulation. In addition, the frequency converter also has many protection functions, such as overcurrent, overvoltage, overload protection, etc. With the continuous improvement of industrial automation, the frequency converter has also been widely used.

[0003] During the use of the frequency converter, it needs to be regularly maintained and repaired to extend its service life. During the repair process, some technicians rely on maintenance devices to improve work efficiency or convenience. The structures of some existing maintenance devices are shown in Chinese Patent CN213703305U, including a workbench, a maintenance panel, a vacuum cleaner, a lighting lamp and a frequency converter. A vacuum cleaner is arranged on one side of the bottom of the workbench, and the vacuum cleaner and the workbench are fixedly installed through a mounting frame. A maintenance panel is placed at the center of the top of the workbench. Fixed bases are fixedly installed at the four corners of the bottom of the maintenance panel. Strip-shaped grooves are formed on both sides of the maintenance panel. An installation through-hole is formed on the side of the maintenance panel close to the vacuum cleaner. A maintenance groove is formed at the center of the top surface of the maintenance panel. A frequency converter is placed inside the maintenance groove. Tool grooves, hardware grooves and dirt removal grooves are respectively formed on both sides of the maintenance groove. A storage groove is formed at the top of the maintenance groove. During the actual use process, the inventor found that due to the fixed main structure of the maintenance device, the operation table surface is always in a horizontal state and there is no outer shielding structure, and impurities or dust generated during the maintenance operation are likely to fall into the outer environment, and the purpose of centralized collection of dust impurities cannot be achieved. This will not only cause secondary pollution of the frequency converter products before and after maintenance, but also increase the cleaning difficulty of the entire working environment. Summary of the Utility Model

[0004] The utility model provides a convenient frequency converter maintenance device, which is beneficial to solving the problem that some existing maintenance devices have a fixed main structure and no outer shielding structure, which is easy to cause dust to fly out and impurities to leak out.

[0005] The utility model is realized as follows:

[0006] A convenient and easy-to-use inverter maintenance device includes a workbench. The bottom of the workbench is provided with supporting feet. The bottom of the supporting legs is hinged to the supporting feet. The top of the workbench is provided with an operating table. The operating table is provided with several sunken grooves for placing items. The workbench is provided with a partition cover around the rear of the operating table. The workbench is provided with a cleaning trough with a strip-shaped through-hole structure below the partition cover. A dust collection box with an open top is provided below the cleaning trough. The dust collection box is detachably connected to the workbench. A vacuum cleaner is also provided on the workbench. The input end of the vacuum cleaner is a telescopic suction pipe that extends to the upper end of the workbench.

[0007] On the basis of the above technical solution, the supporting feet include a fixing part and a movable part that are threadedly connected to each other. The fixing part and the movable part can form a length adjustment structure in the longitudinal direction.

[0008] On the basis of the above technical solution, the bottom of the supporting leg is provided with an extension rod. The bottom of the extension rod is hinged to the top of the fixing part. The hinge has a hinge shaft that can adjust the connection tightness.

[0009] On the basis of the above technical solution, the cross-sectional profile of the partition cover is a "C" - shaped structure, which covers the rear edge and corner area of the workbench.

[0010] On the basis of the above technical solution, the longitudinal cross-sectional profile of the central area of the partition cover is a "C" - shaped structure, and its top bends and extends forward.

[0011] On the basis of the above technical solution, the bottom of the supporting feet is provided with elastic pads.

[0012] On the basis of the above technical solution, several supporting brackets are provided on the bottom end surface of the workbench. The supporting brackets are in an "L" - shaped structure. The inner areas of the supporting brackets jointly form an installation space for the dust collection box, and an opening structure for the dust collection box to enter and exit is left on one side.

[0013] On the basis of the above technical solution, a sealing and leak - proof structure is provided between the bottom of the cleaning trough and the top opening of the installed dust collection box.

[0014] On the basis of the above technical solution, a storage rack is provided on the workbench. The storage rack is in a strip - shaped flange structure, and several grooves for placing items are provided on the top of the storage rack.

[0015] On the basis of the above technical solution, at least one sunken groove area on the operating table is provided with a magnetic attraction structure.

[0016] Compared with the prior art, the present utility model has at least the following advantages:

[0017] The utility model forms a semi - surrounding shielding structure by arranging a shielding cover behind the workbench, which neither affects the maintenance operation of technicians on one side in the front nor has an effect of preventing impurities and dust from leaking out in the rear area. Further, a material cleaning groove and a dust collection box are arranged below the shielding cover, and are matched with the leg and foot structure with a swingable inclination angle, which is convenient for centralized collection of impurities and dust. Therefore, it is beneficial to solve the problem that the main structure of some existing maintenance devices is fixed and there is no external shielding structure, which is easy to cause dust flying and impurity leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present utility model, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 is a schematic structural diagram of a convenient frequency converter maintenance device in an embodiment;

[0020] Figure 2 is Figure 1 side view of;

[0021] Figure 3 is a schematic structural diagram of the connection part of the feet in an embodiment;

[0022] Figure 4 is a schematic bottom structure diagram of the workbench.

[0023] Reference numerals in the figures: 1. Workbench; 11. Leg; 111. Extension rod; 12. Operating table; 13. Material cleaning groove; 14. Storage rack; 2. Foot; 21. Fixing part; 22. Movable part; 3. Shielding cover; 4. Dust collection box; 41. Bracket; 5. Vacuum cleaner; 51. Suction pipe; 6. Hinge shaft. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] To make the purpose, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model. Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the present utility model to be protected, but only represents the selected embodiments of the present utility model.

[0025] In the description of the present utility model, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality of" means two or more, unless otherwise specifically defined.

[0026] It should be noted that when an element is referred to as being "fixedly provided on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to an element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for illustrative purposes and do not represent the only implementation.

[0027] The present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] Combined with Figures 1-4 , this embodiment discloses a convenient and handy frequency converter maintenance device. The frequency converter maintenance device includes a workbench 1. The top of the workbench 1 has a horizontal rectangular end face. Four corners at the bottom of the workbench 1 are provided with vertical downward supporting feet 2. The top of the supporting feet 2 is welded to the workbench 1 to form an integral structure. The bottom of the supporting leg 11 is hinged to the supporting foot 2, and the supporting foot 2 is used to support the workbench 1.

[0029] Specifically, a vertically downward extending rod 111 is provided at the bottom of the supporting leg 11. The bottom of the extending rod 111 is hinged to the supporting foot 2, so that the supporting leg 11 has the ability to adjust the inclination angle. That is to say, the workbench 1 can be swing-adjusted under specific conditions.

[0030] Further, combined with Figure 3 , the supporting foot 2 includes a fixing member 21 and a movable member 22 that are threadedly connected to each other. The fixing member 21 and the movable member 22 can form a length adjustment structure in the longitudinal direction, which is beneficial to flexibly adjust the installation height of the front and rear supporting legs 11 to a certain extent, so that the inclination angle of the workbench 1 remains consistent for a long time.

[0031] The bottom of the extending rod 111 is hinged to the top of the fixing member 21. The hinge has a hinge shaft 6 that can adjust the connection tightness. It should be noted that the hinge shaft 6 is parallel to the left and right directions, which enables the workbench 1 to swing and adjust the angle in the front and rear directions. The connection tightness of the hinge shaft 6 is realized by tightening nuts on both sides of it on the extending rod 111. During actual operation, the connection tightness of the hinge shaft 6 can be adjusted by loosening or tightening the nuts.

[0032] On the top of the workbench 1, there is an operating table 12. The operating table 12 is of a rectangular flange structure, and its raised height is 5 - 30 mm. In this embodiment, the raised height is 8 mm. Its function is to form a stepped structure between the operating table 12 and the workbench 1, which makes the impurities and dust accumulated on the workbench 1 not easily return to the area of the operating table 12.

[0033] Furthermore, several sinking grooves for placing items are provided on the operating table 12. The sinking grooves are used to accommodate and fix the frequency converters, as well as tools and spare parts required during the maintenance process. The sinking grooves are separated, which is beneficial for classifying and placing the above items, avoiding messy accumulation of objects and difficult searching.

[0034] A partition shield 3 is provided on the outer periphery behind the operating table 1 of the workbench 1. Refer to Figure 1 and Figure 2 , the cross-sectional contour of the partition shield 3 is a "C" - shaped structure, which covers the rear edge and corner area of the workbench 1; the longitudinal cross-sectional contour of the central area of the partition shield 3 is a "C" - shaped structure, and its top bends and extends forward. The partition shield 3 makes a semi - enclosed structure at the rear side of the workbench 1, so that the impurities and dust generated during the maintenance process will not easily leak out after entering the rear side area of the workbench 1.

[0035] A cleaning trough 13 with a strip - shaped through - hole structure is provided below the partition shield 3 of the workbench 1. The cleaning trough 13 longitudinally penetrates the workbench 1, and the cleaning trough 13 is used for impurities and dust to pass through and enter the area below the workbench 1.

[0036] Below the cleaning trough 13, there is a dust collection box 4 with an open top. The dust collection box 4 is detachably connected to the workbench 1. Specifically, referring to Figure 4 , there are 3 supporting brackets 41 on the bottom end face of the workbench 1, corresponding to three side positions at the installation position of the dust collection box 4 respectively. Each supporting bracket 41 is of an "L" - shaped structure. The top of the supporting bracket 41 is welded and fixed to the bottom end face of the workbench 1, and the bottom horizontal section serves as a supporting structure. The inner areas of the supporting brackets 41 jointly form an installation space for the dust collection box 4, and there is an opening structure (the rear side in this embodiment) for the dust collection box 4 to enter and exit. During actual use, when a certain amount of impurities and dust are accumulated on the workbench 1, the operator can use a cleaning tool to sweep the impurities and dust on the workbench 1 into the cleaning trough 13, and then enter the dust collection box 4 for centralized collection, and subsequent regular maintenance and treatment.

[0037] Further, a vacuum cleaner 5 is also provided on the workbench 1. The main body of the vacuum cleaner 5 is fixedly installed on the bottom end face of the workbench 1. The input end of the vacuum cleaner 5 is a dust suction pipe 51 that extends to the upper end of the workbench 1 and can be telescopically moved. The free end of the dust suction pipe 51 has a dust collection hood structure, and the main body of the dust suction pipe 51 is a telescopic pipe structure. With the negative pressure condition of the vacuum cleaner 5, it can adsorb the remaining impurities and dust on the workbench 1. It should be noted that the vacuum cleaner 5 has a detachable dust collection module, and the dust suction pipe 51 can be snap-fixed on the upper end face of the workbench 1 when it is idle.

[0038] In this embodiment, a storage rack 14 is provided on the workbench 1. The storage rack 14 is a strip-shaped flange structure. Several grooves for placing items are provided on the top of the storage rack 14. The storage rack 14 is not fixedly connected to the workbench 1. The storage rack 14 can be flexibly placed at various positions on the upper end face of the workbench 1 for temporarily placing tools or other items.

[0039] In the specific implementation process, by adjusting the height of the rear support feet 2 to be lower than the height of the front support feet 2, the workbench 1 and the operation table 12 can be in a slightly front-high and rear-low posture. In this case, impurities and dust can move backward on the workbench 1 by themselves, thereby reducing the workload of dust collection and removal. The inclination angle of the workbench 1 can also be flexibly adjusted according to actual operation requirements.

[0040] In other embodiments, in order to make the workbench 1 have better stability, elastic pads are provided at the bottom of the support feet 2, which is beneficial to preventing the workbench 1 from shaking when the arm touches it during operation.

[0041] In other embodiments, in order to improve the environmental cleanliness, a seal and leak-proof structure can also be provided between the bottom of the material cleaning tank 13 and the top opening of the installed dust collection box 4. Specifically, a seal curtain or other structures can be used.

[0042] In other embodiments, at least one sunken area on the operation table 12 is provided with a magnetic attraction structure, which enables small magnetic metal parts such as screws removed during the maintenance process to be stably adsorbed and fixed, and will not easily slide and run away, thereby helping the smooth progress of the maintenance work and improving the maintenance efficiency.

[0043] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A convenient inverter maintenance device, characterized in that: The invention comprises a workbench (1), wherein a support leg (2) is provided at the bottom of the workbench (1), and a support leg (11) is hinged at the bottom of the support leg (2); an operating table (12) is provided at the top of the workbench (1), and a plurality of sinks for placing items are provided on the operating table (12); a baffle cover (3) is provided on the periphery of the workbench (1) at the rear of the operating table (12); a cleaning trough (13) with a strip-shaped through-hole structure is provided on the workbench (1) below the baffle cover (3); a dust collecting box (4) with an opening at the top is provided below the cleaning trough (13); the dust collecting box (4) is detachably connected to the workbench (1); a dust collector (5) is also provided on the workbench (1); and an input end of the dust collector (5) is a dust collecting pipe (51) which extends to the upper end of the workbench (1) and is telescopic and movable.

2. A convenient inverter maintenance device according to claim 1, characterized in that: The support leg (2) comprises a fixing part (21) and a movable part (22) which are threadedly connected to each other, and the fixing part (21) and the movable part (22) can form a length adjustment structure in the longitudinal direction.

3. A convenient inverter maintenance device according to claim 2, characterized in that: An extension rod (111) is provided at the bottom of the supporting leg (11), and the bottom of the extension rod (111) is hinged to the top of the fixing member (21), and the hinge is provided with a hinge shaft (6) capable of adjusting the tightness of the connection.

4. A convenient inverter maintenance device according to claim 1, characterized in that: The cross-sectional profile of the baffle cover (3) is a "C"-shaped structure, which covers the rear edge and corner area of ​​the workbench (1).

5. A convenient inverter maintenance device according to claim 4, characterized in that: The longitudinal section profile of the central area of ​​the baffle cover (3) is a "C"-shaped structure, with the top portion thereof bending and extending forward.

6. A convenient inverter maintenance device according to claim 2 or 3, characterized in that: An elastic pad is provided at the bottom of the supporting foot (2).

7. A convenient inverter maintenance device according to claim 1, characterized in that: A plurality of support frames (41) are provided on the bottom end surface of the workbench (1), the support frames (41) are in an "L"-shaped structure, the inner areas of the support frames (41) cooperate to form an installation space for the dust collecting box (4), and an opening structure for the dust collecting box (4) to enter and exit is reserved on one side.

8. A convenient inverter maintenance device according to claim 7, characterized in that: A sealing and leak-proof structure is provided between the bottom of the cleaning trough (13) and the top opening of the dust collecting box (4) after installation.

9. A convenient inverter maintenance device according to claim 1, characterized in that: The workbench (1) is provided with a storage rack (14), the storage rack (14) is a strip-shaped flange structure, and the top of the storage rack (14) is provided with a plurality of grooves for placing items.

10. A convenient inverter maintenance device according to claim 1, characterized in that: At least one sink area on the operating table (12) is provided with a magnetic attraction structure.

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