A high-voltage frequency converter protection device

Abstract

The utility model relates to high pressure frequency changer technical field especially relates to a kind of high pressure frequency changer protection device, including support mechanism and protection mechanism, protection mechanism is located inside support mechanism, support mechanism includes support floor, support floor top rear side position is equipped with support frame, four hydraulic jacks are fixed in support floor bottom, support frame front side is hinged with turnover roof, and hydraulic telescopic rod is hinged in the both sides of turnover roof. The periphery of high pressure frequency changer is protected by the protection net chain formed by the hinge of the first and last of multiple protection plates, the upper and lower ends of the protection net chain move in the guide slot of turnover roof and support floor respectively, so that the drilling of mouse can be effectively avoided, in addition, the entire protection net chain can be quickly wound up and unfolded by winding roller, and the whole is simple and convenient for quick operation.

Description

Technical Field

[0001] This utility model relates to the field of high voltage frequency converter technology, and in particular to a high voltage frequency converter protection device. Background Technology

[0002] According to the patent document with announcement number CN220440227U, by installing the column inside the mounting groove, pulling the pull block to remove the limit bolt, and then pulling the limit rod to pull out the protective net, the inner rod rotates as the protective net is pulled out. The limit rod can be limited by hooking the hook plate on another set of columns. Then, the limit bolt is reinstalled on the column to limit the inner rod and prevent it from rotating. At this time, the protective net can be fixed between the two sets of columns, thereby protecting the high voltage frequency converter at the top of the base plate. At the same time, the handwheel rotates through the screw to move the bottom block downward, pressing the protective pad against the ground and supporting the base plate.

[0003] The patent document states that when protecting high-voltage frequency converters, there is a certain gap between the lower end of the protective net and the base plate. This gap may allow rats to pass through and climb into the high-voltage frequency converter, causing damage to the circuit. Therefore, it cannot effectively protect the high-voltage frequency converter. In addition, there is no corresponding protective device on the top of the high-voltage frequency converter. If debris falls from above the protective net during transportation, it may damage the high-voltage frequency converter. Utility Model Content

[0004] The purpose of this invention is to provide a high-voltage frequency converter protection device to solve the above-mentioned problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] A high-voltage frequency converter protection device includes a support mechanism and a protective mechanism, wherein the protective mechanism is located inside the support mechanism;

[0007] The support mechanism includes a support floor, a support frame at the top rear of the support floor, four hydraulic jacks fixed at the bottom of the support floor, a tilting top plate hinged to the front of the support frame, and hydraulic telescopic rods hinged to both sides of the tilting top plate.

[0008] The protective mechanism includes two symmetrical protective net chains. Two traction ropes are fixed to the front ends of the two protective net chains, and the two traction ropes are arranged symmetrically from top to bottom. The rear ends of the two protective net chains are fixed to the outside of the winding roller. A winding roller is fixed in the middle of the two traction ropes. The two winding rollers are rotatably connected to the bottom of the flip-top plate and the top of the supporting floor, respectively. Magnetic strips are fixed to the sides of the front ends of the two protective net chains that are close to each other. A drive motor is fixedly installed at the input end of each winding roller.

[0009] Preferably, the bottom of the support frame is fixed with two vertical pillars, and the lower end of each pillar is fixed to the top of the support floor.

[0010] Preferably, a support shaft is fixed on the side of each of the two pillars that are far apart from each other, and the two support shafts are rotatably connected to the fixing parts of the two hydraulic telescopic rods.

[0011] Preferably, the bottom side of the flip-top plate and the top side of the supporting floor are provided with corresponding storage grooves, traction grooves and guide grooves, with the traction groove located at the front end of the guide groove and the storage groove located at the rear end of the guide groove.

[0012] Preferably, the take-up roller consists of a take-up sleeve, a take-up shaft, and a torsion spring. The take-up shaft is located at the center of the take-up sleeve, and the torsion spring is located between the take-up sleeve and the take-up shaft. The upper end of the torsion spring is fixedly connected to the take-up shaft, and the lower end of the torsion spring is fixedly connected to the take-up sleeve.

[0013] Preferably, the protective mesh chain is composed of multiple protective plates connected end to end. Multiple mesh holes are opened in the middle of the protective plates. A rotating sleeve is fixed at one end of the protective plate, and a rotating seat is fixed at the other end of the protective plate.

[0014] Preferably, a mesh panel is fixed at the middle position of the top of the flip-top plate.

[0015] The advantages compared to existing technologies are as follows:

[0016] The high-voltage frequency converter is protected by a protective mesh chain consisting of multiple protective plates hinged together end to end. The upper and lower ends of the protective mesh chain move within the guide grooves of the flip-top plate and the supporting floor, respectively, which can effectively prevent rats from entering. In addition, the entire protective mesh chain can be quickly retracted and unfolded by a winding roller, making it simple and easy to operate quickly. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a perspective view of a high-voltage frequency converter protection device according to the present invention;

[0019] Figure 2 This is a front view of a high-voltage frequency converter protection device according to the present invention;

[0020] Figure 3 yes Figure 2 Sectional view at point BB;

[0021] Figure 4 This is a schematic diagram of the support mechanism structure of the high-voltage frequency converter protection device described in this utility model;

[0022] Figure 5 This is a schematic diagram of the winding roller structure of a high-voltage frequency converter protection device according to the present invention;

[0023] Figure 6 This is a schematic diagram of the protective mechanism structure of a high-voltage frequency converter protection device according to the present invention;

[0024] Figure 7 This is a schematic diagram of the magnetic strip structure of a high-voltage frequency converter protection device according to the present invention;

[0025] Figure 8 This is a schematic diagram of the protective plate structure of a high-voltage frequency converter protection device according to the present invention;

[0026] Figure 9 This is a schematic diagram of the reel and traction rope structure of a high-voltage frequency converter protection device according to this utility model.

[0027] The annotations in the attached figures are explained as follows:

[0028] 1. Support mechanism; 2. Protective mechanism; 3. Storage slot; 4. Traction slot; 5. Guide slot; 11. Support frame; 12. Support floor; 13. Hydraulic jack; 14. Tilting top plate; 15. Hydraulic telescopic rod; 21. Winding roller; 211. Protective plate; 22. Protective mesh chain; 23. Drive motor; 24. Winding roller; 25. Traction rope; 26. Magnetic strip. Detailed Implementation

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] The present invention will be further described below with reference to the accompanying drawings:

[0031] like Figures 1-9 As shown, a high-voltage frequency converter protection device includes a support mechanism 1 and a protection mechanism 2, with the protection mechanism 2 located inside the support mechanism 1.

[0032] In this embodiment: the support mechanism 1 includes a support floor 12, a support frame 11 is provided at the rear top of the support floor 12, four hydraulic jacks 13 are fixed at the bottom of the support floor 12, a tilting top plate 14 is hinged to the front of the support frame 11, a mesh plate is fixed at the middle of the top of the tilting top plate 14, and hydraulic telescopic rods 15 are hinged to both sides of the tilting top plate 14. Two vertical pillars are fixed to the bottom of the support frame 11, and the lower end of each pillar is fixed to the top of the support floor 12. Support shafts are fixed to the sides of the two pillars that are far apart from each other. The two support shafts are connected to two... The fixed part of the hydraulic telescopic rod 15 is rotatably connected. The bottom side of the flip-top plate 14 and the top side of the support floor 12 are provided with corresponding storage grooves 3, traction grooves 4 and guide grooves 5. The traction groove 4 is located at the front end of the guide groove 5, and the storage groove 3 is located at the rear end of the guide groove 5. The support frame 11 is supported on the top of the support floor 12 by the support column. At the same time, the telescopic parts of the two hydraulic telescopic rods 15 are used to push the flip-top plate 14 to flip upward, so as to facilitate the placement of the high voltage frequency converter on the top of the support floor 12. At the same time, the height of the support floor 12 is adjusted by four hydraulic jacks 13.

[0033] In this embodiment: the protective mechanism 2 includes two symmetrical protective net chains 22. Two traction ropes 25 are fixed to the front ends of the two protective net chains 22, and the two traction ropes 25 are arranged symmetrically vertically. The rear ends of the two protective net chains 22 are fixed to the outside of the winding roller 21. A winding roller 24 is fixed to the middle position of each of the two traction ropes 25. The two winding rollers 24 are rotatably connected to the bottom of the flip-top plate 14 and the top of the supporting floor 12, respectively. Magnetic strips are fixed to the sides of the front ends of the two protective net chains 22 that are close to each other. 26. Each winding roller 24 has a fixed drive motor 23 at its input end. The take-up roller 21 consists of a take-up sleeve, a take-up shaft, and a torsion spring. The take-up shaft is located at the center of the take-up sleeve, and the torsion spring is located between the take-up sleeve and the take-up shaft. The upper end of the torsion spring is fixedly connected to the take-up shaft, and the lower end of the torsion spring is fixedly connected to the take-up sleeve. The protective mesh chain 22 is composed of multiple protective plates 211 connected end to end. Multiple mesh holes are opened in the middle of the protective plates 211, and a rotating sleeve is fixed to one end of each protective plate 211. The other end of the protective plate 211 is fixed with a rotating seat. The rotating parts of the two drive motors 23 drive the corresponding winding rollers 24 to rotate. The rotation of the winding rollers 24 winds the middle position of the traction rope 25, thereby causing the two traction ropes 25 to move and wind up in the guide grooves 5 of the flip-top plate 14 and the guide grooves 5 of the support floor 12, respectively. As the two traction ropes 25 are gradually wound onto the two winding rollers 24, the front ends of the two protective net chains 22 move towards the take-up roller 21 along the guide grooves 5 of the flip-top plate 14 and the guide grooves 5 of the support floor 12. At the same time, the take-up sleeve rotates with the movement of the two protective net chains 22, and the torsion spring inside the take-up sleeve begins to twist and compress. When the two traction ropes 25 are completely wound onto the two winding rollers 24, the front ends of the two protective net chains 22 are located on the front and rear sides of the two winding rollers 24, and the magnetic strips 26 at the front ends of the two protective net chains 22 attract each other, thereby sealing the gap at the front ends of the two protective net chains 22.

[0034] Working principle: In use, firstly, the height of the support floor 12 is adjusted to a horizontal position using four hydraulic jacks 13. Then, the extension parts of the two hydraulic telescopic rods 15 extend and push the tilting top plate 14 upward, allowing the high-voltage frequency converter to be protected to be placed on top of the support floor 12. Next, the extension parts of the two hydraulic telescopic rods 15 shorten and cause the tilting top plate 14 to tilt downward, so that the top of the tilting top plate 14 is on the same horizontal plane as the top of the support frame 11. Then, the rotating parts of the two drive motors 23 drive the corresponding winding rollers 24 to rotate. The rotation of the winding rollers 24 winds the traction ropes 25 around their middle positions, causing the two traction ropes 25 to be respectively positioned in the guide grooves 5 of the tilting top plate 14 and the support floor. The guide groove 5 of the 12 moves and is wound up, gradually winding around the two winding rollers 24 by the two traction ropes 25. Then, the front ends of the two protective net chains 22 move forward to the winding roller 21 along the guide groove 5 of the flip top plate 14 and the guide groove 5 of the support floor 12. At the same time, the winding sleeve rotates with the movement of the two protective net chains 22, and the torsion spring in the winding sleeve begins to twist and compress. When the two traction ropes 25 are completely wound on the two winding rollers 24, the front ends of the two protective net chains 22 are on the front and rear sides of the two winding rollers 24, and the magnetic strips 26 at the front ends of the two protective net chains 22 attract each other, thereby sealing the gap at the front ends of the two protective net chains 22, thus protecting the sides, top and bottom of the high voltage frequency converter.

[0035] When the high-voltage frequency converter needs to be operated, the two drive motors 23 drive the winding rollers 24 to rotate in the opposite direction. Then the winding rollers 24 stop winding and pulling the two traction ropes 25. At the same time, the torsion spring force of the take-up roller 21 drives the take-up sleeve to rotate in the opposite direction. The reverse rotation of the take-up sleeve is used to take in the rear ends of the two protective net chains 22. Then the rear ends of the two protective net chains 22 are gradually rolled up to the outside of the take-up sleeve. At the same time, the two magnetic strips 26 at the front ends of the two protective net chains 22 separate, and the take-up of the protective net chains 22 is completed.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A protection device for a high-voltage frequency converter, characterized in that: It includes a support mechanism (1) and a protective mechanism (2), wherein the protective mechanism (2) is located inside the support mechanism (1); The support mechanism (1) includes a support floor (12), a support frame (11) is provided at the rear top of the support floor (12), four hydraulic jacks (13) are fixed at the bottom of the support floor (12), a flip-top plate (14) is hinged to the front of the support frame (11), and hydraulic telescopic rods (15) are hinged to both sides of the flip-top plate (14). The protective mechanism (2) includes two symmetrical protective net chains (22). Two traction ropes (25) are fixed at the front ends of the two protective net chains (22) and the two traction ropes (25) are arranged symmetrically up and down. The rear ends of the two protective net chains (22) are fixed to the outside of the winding roller (21). A winding roller (24) is fixed at the middle position of each of the two traction ropes (25). The two winding rollers (24) are rotatably connected to the bottom of the flip-top plate (14) and the top of the supporting floor (12) respectively. Magnetic strips (26) are fixed on the side of the front ends of the two protective net chains (22) that are close to each other. A drive motor (23) is fixedly installed at the input end of each winding roller (24).

2. The high-voltage frequency converter protection device according to claim 1, characterized in that: The support frame (11) has two vertical pillars fixed at its bottom, and the lower end of each pillar is fixed to the top of the support floor (12).

3. A high-voltage frequency converter protection device according to claim 2, characterized in that: Each of the two pillars has a support shaft fixed on the side away from each other, and the two support shafts are rotatably connected to the fixing parts of the two hydraulic telescopic rods (15).

4. A high-voltage frequency converter protection device according to claim 1, characterized in that: The bottom side of the flip-top plate (14) and the top side of the supporting floor (12) are provided with corresponding storage grooves (3), traction grooves (4) and guide grooves (5). The traction groove (4) is located at the front end of the guide groove (5), and the storage groove (3) is located at the rear end of the guide groove (5).

5. A high-voltage frequency converter protection device according to claim 1, characterized in that: The take-up roller (21) consists of a take-up sleeve, a take-up shaft, and a torsion spring. The take-up shaft is located at the center of the take-up sleeve, and the torsion spring is located between the take-up sleeve and the take-up shaft. The upper end of the torsion spring is fixedly connected to the take-up shaft, and the lower end of the torsion spring is fixedly connected to the take-up sleeve.

6. A high-voltage frequency converter protection device according to claim 1, characterized in that: The protective mesh chain (22) is composed of multiple protective plates (211) connected end to end. Multiple mesh holes are opened in the middle of the protective plates (211). A rotating sleeve is fixed at one end of the protective plate (211), and a rotating seat is fixed at the other end of the protective plate (211).

7. A high-voltage frequency converter protection device according to claim 1, characterized in that: A mesh plate is fixed at the middle position of the top of the flip-top plate (14).

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