Novel quick-plug frequency converter

Abstract

The utility model relates to the technical field of electric power control equipment, and discloses a novel fast plug type frequency converter, which comprises a frequency conversion speed regulator, a rectangular box and two supports, one side of the frequency conversion speed regulator is welded with the rectangular box, the inside of the rectangular box is rotatably connected with a double-thread screw rod, the top end of the double-thread screw rod is fixedly connected with a knob through a rotating shaft, and the knob is fixedly connected with the rectangular box. The bottom and the top of the double-thread screw are both in threaded connection with sliding tables, clamping grooves are formed in the middles of one sides of the two sliding tables, and the two clamping grooves are both connected with clamping blocks in a clamped mode. The rotary shaft is rotated through the rotary knob to drive the double-thread screw to rotate, the double-thread screw can drive the two sliding tables to move oppositely, the distance between the two baffles can be shortened, the two insertion blocks can be inserted into the insertion grooves of the two supports correspondingly, the two insertion blocks are clamped through insertion, and rapid installation is convenient. The height of the sliding table can be kept through friction force between the double-thread screw and the threaded cylinder.

Description

Technical Field

[0001] The utility model relates to the technical field of electric power control equipment, in particular to a novel quick-plug frequency converter. Background Art

[0002] The inverter is mainly composed of rectification, filtering, inversion, braking unit, drive unit, detection unit, microprocessor unit, etc. The inverter adjusts the voltage and frequency of the output power supply by the opening and closing of the internal IGBT, and provides the required power supply voltage according to the actual needs of the motor, thereby achieving the purpose of energy saving and speed regulation. In addition, the inverter also has many protection functions, such as over-current, over-voltage, overload protection, etc. With the continuous improvement of industrial automation, inverters have also been widely used.

[0003] The existing quick-plug inverter can refer to the Chinese utility model patent with the authorization announcement number CN218388285U, which discloses an inverter structure that is easy to install, "including an inverter body, a fixing plate is provided in front of the inverter body, and a fixing head is fixedly provided at the four end corners of the rear end face of the fixing plate, and a circular groove is provided at the four end corners of the front end face of the inverter body. The middle position of the inner wall of the rear end of the circular groove is provided at a fixing opening, and the other end of the fixing opening extends to the inner wall of the fixing groove located on the outer surface of the inverter body, and a part of the fixing head enters the interior of the fixing groove by penetrating the circular groove and the fixing opening. The utility model greatly reduces the cumbersome operation when disassembling and assembling the inverter body through the cooperation of the pushing structure and the clamping structure carried by itself, and no tools are required during the disassembly and assembly process, thereby improving the work efficiency of the installer."

[0004] When the above-mentioned equipment is in use, it is necessary to press the disassembly sleeve arranged on the outer surface of the fixed head and push the disassembly sleeve inward to realize the disassembly of the inverter body. Since there is a certain distance between the four sets of disassembly sleeves, it is not convenient to press the four sets of sleeves at the same time, which increases the difficulty of operation and is not convenient for single-person operation. In addition, the disassembly sleeve requires the fixed spring, the return spring and the push spring to be used in conjunction with each other. The structure is complex and hidden, and it is not convenient to repair once damaged. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a novel quick-plug frequency converter, which has the advantages of simple operation and convenient maintenance, and solves the problems raised by the above-mentioned background technology.

[0006] The utility model provides the following technical solutions: a novel quick-plug frequency converter, comprising a frequency converter, a rectangular box and two supports, a rectangular box is welded on one side of the frequency converter, a double-headed screw is rotatably connected inside the rectangular box, the top of the double-headed screw is fixedly connected to a knob through a rotating shaft, the bottom and top of the double-headed screw are threadedly connected to a slide, a slot is provided in the middle of one side of the two slides, the two slots are snap-connected with a card block, a slider is fixedly provided on one side of the two blocks, the two sliders are fixedly connected with two connecting plates, the four connecting plates are fixedly connected to the two slides by bolts, one side of the two sliders is fixedly connected with an insert block through a baffle, slots are provided on the surfaces of the two supports, and the two insert blocks are snap-connected with the two slots respectively.

[0007] As a preferred technical solution of the utility model, an inspection cover is fixedly connected to the other side of the rectangular box by screws, and sliding grooves are provided at the bottom and top of the inspection cover, and the two sliding blocks are slidably connected to the two sliding grooves respectively.

[0008] As a preferred technical solution of the utility model, the two slides are slidably connected to the inner wall of the rectangular box, and a threaded barrel is embedded in the middle of the two slides. The two threaded barrels are respectively threadedly connected to the bottom and top of the double-headed screw.

[0009] As a preferred technical solution of the utility model, through holes are provided on the surfaces of the four connecting plates, and the four bolts are respectively inserted and connected with the four through holes; threaded holes are provided on the bottom of one side and the top of one side of the two slides, and the four bolts are respectively threadedly connected with the four threaded holes.

[0010] As a preferred technical solution of the utility model, one side of the two supports is fixedly connected with a positioning plate, and the surfaces of the two positioning plates are provided with two positioning holes.

[0011] As a preferred technical solution of the utility model, first ribs are welded to the bottom of both sides and the top of both sides of the rectangular box, one side of the four first ribs are welded to one side of the frequency converter, one side of the two positioning plates are welded to second ribs, and one side of the two second ribs are respectively welded to the two supports.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. This new quick-insertion frequency converter rotates the shaft by turning the knob to drive the double-headed screw to rotate. The double-headed screw can drive the two slides to move in opposite directions, shortening the distance between the two baffles. The two plug-ins can be respectively inserted into the slots of the two supports and engaged by plugging, which is convenient and quick to install. The double-headed screw can maintain the height of the slide by the friction between the double-headed screw and the threaded barrel. It has good stability and is not easy to shake. By turning the shaft in the opposite direction by turning the knob to make the double-headed screw rotate in the opposite direction, the two plug-ins can move in opposite directions and can be pulled out of the two slots at the same time, which is convenient for quick disassembly of the frequency converter and single-person operation. It does not require the use of multiple sets of springs, reducing the difficulty of operation.

[0014] 2. This new quick-insertion inverter drives the slide and moves the insert block through a double-headed screw. It has a simple structure and can fix the slider and the slide through a connecting plate. The block and the slot can reduce the vertical force borne by the bolt and improve the slider's resistance to deformation. The slider and the baffle are exposed to the outside, which is convenient for disassembly and maintenance. By loosening the bolts that fix the connecting plate and pulling the block out horizontally from the inside of the slot, the slider can be quickly disassembled, and its maintenance and replacement are convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the rectangular box of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the baffle of the utility model;

[0018] Figure 4 It is a structural schematic diagram of the slide table of the utility model;

[0019] Figure 5 It is a structural schematic diagram of the support of the utility model.

[0020] In the figure: 1. frequency converter; 2. rectangular box; 3. first rib plate; 4. inspection cover; 5. slide groove; 6. double-headed screw; 7. threaded barrel; 8. slide table; 9. rotating shaft; 10. knob; 11. slider; 12. connecting plate; 13. block; 14. slot; 15. threaded hole; 16. baffle; 17. insert block; 18. support; 19. slot; 20. positioning plate; 21. second rib plate; 22. positioning hole; 23. through hole. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-5 A novel quick-plug frequency converter includes a frequency converter 1, a rectangular box 2 and two supports 18. A rectangular box 2 is welded on one side of the frequency converter 1. A double-headed screw 6 is rotatably connected inside the rectangular box 2. A knob 10 is fixedly connected to the top of the double-headed screw 6 through a rotating shaft 9. A slide 8 is threadedly connected to the bottom and top of the double-headed screw 6. A slot 14 is provided in the middle of one side of the two slides 8. The two slots 14 are engaged with a card block 13. A slider 11 is fixedly provided on one side of the two card blocks 13. The two sliders 11 are fixedly connected to two connecting plates 12. The four connecting plates 12 are fixedly connected to the two slides 8 by bolts respectively. One side of the two sliders 11 is fixedly connected with an insert block 17 by a baffle 16. The surfaces of the two supports 18 are provided with slots 19. The two insert blocks 17 are respectively engaged with the two slots 19. The rotating shaft 9 is rotated by the knob 10 to drive the double-headed screw 6 to rotate. The double-headed screw 6 can drive the two slides 8 to move in opposite directions, which can shorten the distance between the two baffles 16. The two insert blocks 17 can be respectively inserted into the slots 19 of the two supports 18 and engaged by plugging them together, which is convenient and quick to install.

[0023] See also Figure 1 The other side of the rectangular box 2 is fixed with an inspection cover 4 by screws. The bottom and top of the inspection cover 4 are provided with slide grooves 5. Two sliders 11 are slidably connected to the two slide grooves 5 respectively. The slide grooves 5 can guide the slider 11 to ensure the vertical movement of the slider 11.

[0024] See also Figure 2 and Figure 3 The two slides 8 are slidably connected to the inner wall of the rectangular box 2, and a threaded barrel 7 is embedded in the middle of the two slides 8. The two threaded barrels 7 are respectively threadedly connected to the bottom and top of the double-headed screw 6. The rotational motion of the double-headed screw 6 can be converted into the linear motion of the slide 8 through the threaded barrel 7.

[0025] See also Figure 4 and Figure 5 The surfaces of the four connecting plates 12 are each provided with through holes 23, and four bolts are respectively inserted and connected with the four through holes 23. The bottom of one side and the top of one side of the two slides 8 are each provided with threaded holes 15, and the four bolts are respectively threadedly connected with the four threaded holes 15. The bolts can be inserted through the through holes 23, and the bolts can be positioned through the threaded holes 15.

[0026] See also Figure 2 A positioning plate 20 is fixedly connected to one side of the two supports 18 , and two positioning holes 22 are provided on the surfaces of the two positioning plates 20 , and the supports 18 can be fixedly installed through the positioning holes 22 of the positioning plates 20 .

[0027] See also Figure 1 The bottom and the top of both sides of the rectangular box 2 are welded with first ribs 3, one side of the four first ribs 3 is welded to one side of the frequency converter 1, one side of the two positioning plates 20 is welded with second ribs 21, one side of the two second ribs 21 is respectively welded to the two supports 18, the first ribs 3 can reinforce the rectangular box 2 and the frequency converter 1, and the second ribs 21 can reinforce the positioning plates 20 and the supports 18.

[0028] When in use, the staff first fixes the inspection cover 4 with screws, then inserts the card block 13 into the card slot 14, and then fixes the connecting plate 12 to one side of the slide 8 with bolts, and then fixes it through the positioning hole 22 of the positioning plate 20, and then rotates the shaft 9 through the knob 10 to drive the double-headed screw 6 to rotate. The double-headed screw 6 can convert the rotational motion into the linear motion of the two slides 8 through the two threaded tubes 7. The two slides 8 can move in opposite directions, which can shorten the distance between the two baffles 16, and then the two plug blocks 17 can be respectively inserted into the slots 19 of the two supports 18, so that the variable frequency speed regulator 1 can be quickly installed. The block 13 and the slot 14 can reduce the vertical force borne by the bolt, and the slider 11 is not easy to deform or loosen. When the frequency converter 1 needs to be disassembled, the staff rotates the shaft 9 in the opposite direction through the knob 10 to rotate the double-headed screw 6 in the opposite direction, so that the two plug-in blocks 17 move in opposite directions to each other, and the two plug-in blocks 17 can be pulled out from the two slots 19 at the same time, so that the frequency converter 1 can be quickly disassembled. The staff loosens the bolts fixing the connecting plate 12, pulls the baffle 16 horizontally, and pulls the block 13 out of the slot 14 horizontally, so that the slider 11 can be quickly disassembled, which is convenient for the maintenance and replacement of the slider 11 and the plug-in block 17.

[0029] 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 variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel quick-plug frequency converter, comprising a frequency converter (1), a rectangular box (2) and two supports (18), characterized in that: A rectangular box (2) is welded to one side of the variable frequency speed regulator (1), a double-headed screw (6) is rotatably connected inside the rectangular box (2), the top of the double-headed screw (6) is fixedly connected to a knob (10) via a rotating shaft (9), the bottom and top of the double-headed screw (6) are both threadedly connected to a slide (8), a slot (14) is provided in the middle of one side of the two slides (8), the two slots (14) are both snap-fitted with a block (13), and the two blocks A slider (11) is fixedly provided on one side of the two supports (13); the two sliders (11) are fixedly connected to two connecting plates (12); the four connecting plates (12) are fixedly connected to the two slides (8) by bolts; one side of the two sliders (11) is fixedly connected to an insert block (17) by a baffle (16); slots (19) are provided on the surfaces of the two supports (18); the two insert blocks (17) are respectively engaged with the two slots (19).

2. A novel quick-plug frequency converter according to claim 1, characterized in that: The other side of the rectangular box (2) is fixedly connected with an inspection cover (4) by screws, and the bottom and top of the inspection cover (4) are provided with sliding grooves (5), and the two sliding blocks (11) are respectively slidably connected to the two sliding grooves (5).

3. The novel quick-plug frequency converter according to claim 1 is characterized in that: The two slides (8) are both slidably connected to the inner wall of the rectangular box (2), and a threaded barrel (7) is embedded in the middle of the two slides (8). The two threaded barrels (7) are respectively threadedly connected to the bottom and top of the double-headed screw (6).

4. The novel quick-plug frequency converter according to claim 1 is characterized in that: The surfaces of the four connecting plates (12) are each provided with a through hole (23), and the four bolts are respectively inserted and connected with the four through holes (23); the bottom of one side and the top of one side of the two slides (8) are each provided with a threaded hole (15), and the four bolts are respectively threadedly connected with the four threaded holes (15).

5. The novel quick-plug frequency converter according to claim 1 is characterized in that: One side of the two supports (18) is fixedly connected with a positioning plate (20), and the surfaces of the two positioning plates (20) are provided with two positioning holes (22).

6. A novel quick-plug frequency converter according to claim 5, characterized in that: The bottom and top of both sides of the rectangular box (2) are welded with first ribs (3), one side of the four first ribs (3) is welded to one side of the variable frequency speed regulator (1), one side of the two positioning plates (20) is welded with second ribs (21), and one side of the two second ribs (21) is respectively welded to two supports (18).

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