Locking rod device for frequency converter switch

Abstract

The utility model relates to the technical field of frequency converter switches, and discloses a locking rod device for a frequency converter switch, which comprises an operating handle and a frequency converter switch body horn mouth arranged on one side of the operating handle, a locking component is arranged on one side of the frequency converter switch body horn mouth, and a lock head is arranged on one side of the locking component. One end of the locking rod body is connected with the mounting block through the connecting piece, so that the locking rod body can be rotationally connected to the mounting block, a constructor clamps the locking rod head on the outer side of the operating handle after power failure, then locking is achieved through the lock head, and other constructors can clearly find that someone is constructing and power transmission is forbidden during operation; the safety protection of constructors in the power failure period is improved, the risk of safety accidents caused by mistaken power transmission is reduced, lubricating oil can enter holes, rotationally connected with the locking rod body and the mounting block, of the connecting block through the oil inlet channel and the flow dividing channel, and the lubricating purpose can be effectively achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to frequency converter switch technical field, concretely is a kind of for the locking lever device of frequency converter switch. BACKGROUND

[0002] Frequency converter is a kind of equipment for adjusting motor speed, mainly realizes by changing power frequency, switch plays the role of controlling power on-off in frequency converter, the start and stop of frequency converter can be controlled by switch, frequency converter switch is widely used in a variety of equipment and industrial occasions, mainly for controlling the operation of motor.

[0003] In the use process of frequency converter switch, frequency converter switch stop power operation handle itself has no locking device, in the power-off state, after operating handle hits to "0" position, switch cannot realize power-off locking, construction personnel goes to other place construction after power-off, other personnel mistakenly thinks that nobody works under not clear site situation, prone to misoperation power phenomenon, causes safety accident.

[0004] Therefore we propose a kind of locking lever device for frequency converter switch to facilitate the problem proposed above. INVENTION CONTENTS

[0005] The utility model aims at providing a kind of locking lever device for frequency converter switch to solve the problem that the frequency converter switch stop power operation handle itself has no locking device in the background art proposed above, in the power-off state, after operating handle hits to "0" position, switch cannot realize power-off locking, construction personnel goes to other place construction after power-off, other personnel mistakenly thinks that nobody works under not clear site situation, prone to misoperation power phenomenon, causes safety accident.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of locking lever device for frequency converter switch, including the operation handle for the operation of frequency converter switch and the frequency converter switch body horn mouth being arranged at the one side of operation handle, the side of the frequency converter switch body horn mouth is provided with locking member, the side of locking member is provided with lock head, locking member is placed at the outside of operation handle, and is locked by lock head;

[0007] The locking member includes locking lever body and locking lever head connected with one end of locking lever body, the surface of locking lever head is provided with aperture, the lock rope of lock head is passed through aperture, the inside of aperture is provided with rubber pad, and the lock rope of lock head is blocked with aperture by rubber pad.

[0008] Preferably, the locking lever body is made of galvanized flat iron material, the locking lever head is a corner structure made of flat iron 90 °, and the operating handle can be clamped inside the locking lever head.

[0009] Preferably, the outside of the variable frequency converter switch body trumpet mouth is provided with a mounting block, one side of the mounting block is provided with a connecting piece, and one end of the locking rod body is connected with the mounting block through the connecting piece.

[0010] Preferably, the inside of the opening is uniformly provided with a groove, the outside of the rubber pad is uniformly provided with a protruding block, and the protruding block is matched with the groove, so that the rubber pad can be installed in the opening, and the lock rope of the lock head can be prevented from contacting the opening.

[0011] Preferably, the inside of the locking rod head is attached with a protective pad, so that the contact between the operating handle and the locking rod head can be reduced, and the operating handle and the locking rod head are prevented from colliding.

[0012] Preferably, the connecting piece comprises a fixed block A and a fixed block B, the fixed block A and the fixed block B are arranged on the outside of the mounting block and the locking rod body respectively, a connecting block is arranged between the fixed block A and the fixed block B, an oil inlet channel is arranged in the fixed block A and the connecting block, a shunt channel is further arranged in the connecting block and communicates with the oil inlet channel, lubricating oil is injected from the opening of the oil inlet channel and discharged through the shunt channel, and can flow into the hole where the connecting block is rotatably connected with the locking rod body and the mounting block.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] 1. The operating handle, the locking member and the lock head are arranged, the locking rod head is clamped on the outside of the operating handle, the lock rope of the lock head is passed through the opening, the operating handle can be locked, other constructors can find that someone is working when operating, power supply is prohibited, the safety protection of constructors during power-off is improved, and the risk of safety accidents caused by mis-sending power is reduced.

[0015] 2. The fixed block, the fixed block, the connecting block, the oil inlet channel and the shunt channel are arranged, lubricating oil can enter the hole where the connecting block is rotatably connected with the locking rod body and the mounting block through the oil inlet channel and the shunt channel, the lubrication purpose can be effectively achieved, the service life is improved, and the use is facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a whole three-dimensional structure schematic view of the utility model;

[0017] Figure 2 It is a three-dimensional structure schematic view of the locking member of the utility model;

[0018] Figure 3 It is a three-dimensional structure schematic view of the utility model; Figure 2 It is an enlarged three-dimensional structure schematic view of the middle A of the utility model;

[0019] Figure 4 The utility model discloses a connecting piece structure schematic view.

[0020] In the drawing: 1, operating handle, 2, frequency converter switch body horn mouth, 21, mounting block, 22, connecting piece, 221, fixed block A, 222, fixed block B, 223, connecting block, 224, oil inlet channel, 225, shunt channel, 3, locking member, 31, locking rod body, 32, locking rod head, 321, protection pad, 33, aperture, 331, recess, 34, rubber pad, 341, convex block, 4, lock head. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0022] Embodiment one: please refer to Figure 1 , Figure 2 and Figure 3 , a locking rod device for frequency converter switch, including operating handle 1 for frequency converter switch operation and frequency converter switch body horn mouth 2 arranged at one side of operating handle 1, one side of frequency converter switch body horn mouth 2 is provided with locking member 3, one side of locking member 3 is provided with lock head 4, locking member 3 is placed at the outside of operating handle 1, and is locked by lock head 4, realizes locking function, avoids false operation operating handle 1, plays the role of improving the safety protection of construction personnel during power off, reduces the risk of safety accidents caused by misdelivery.

[0023] Locking member 3 includes locking rod body 31 and locking rod head 32 connected with one end of locking rod body 31, the surface of locking rod head 32 is provided with aperture 33, the locking rope of lock head 4 is passed through aperture 33, the inside of aperture 33 is provided with rubber pad 34, and rubber pad 34 is used to block the contact of the locking rope of lock head 4 and aperture 33.

[0024] Locking rod body 31 is made of galvanized flat iron material, locking rod head 32 is the corner structure made of flat iron 90 °, and operating handle 1 can be clamped in the inside of locking rod head 32.

[0025] The outside of frequency converter switch body horn mouth 2 is provided with mounting block 21, one side of mounting block 21 is provided with connecting piece 22, one end of locking rod body 31 and mounting block 21 are connected through connecting piece 22, and locking rod body 31 can be rotatably connected on mounting block 21.

[0026] The inner side of the opening 33 is uniformly provided with a groove 331, and the outer side of the rubber pad 34 is uniformly provided with a protruding block 341, and the protruding block 341 is matched with the groove 331. The rubber pad 34 can be installed in the opening 33 by using the groove 331 and the protruding block 341, and the lock rope of the lock head 4 can be prevented from contacting the opening 33 to reduce wear.

[0027] The inner side of the lock rod head 32 is adhered with a protective pad 321, which can reduce the contact between the operating handle 1 and the lock rod head 32 to prevent the operating handle 1 from colliding with the lock rod head 32.

[0028] In this embodiment: one end of the lock rod body 31 is connected to the mounting block 21 through the connecting piece 22, which can rotate the lock rod body 31 to the mounting block 21. After power failure, the construction personnel can use the lock rod head 32 to block the outside of the operating handle 1, and then use the lock head 4 to achieve locking. In use, other construction personnel can easily find that someone is working and power supply is prohibited, which can improve the safety protection of construction personnel during power failure and reduce the risk of safety accidents caused by misdelivery.

[0029] Embodiment two: this embodiment is an improvement based on embodiment one. For details, please refer to Figure 4 The connecting piece 22 includes a fixed block A221 and a fixed block B222, which are respectively arranged on the outer side of the mounting block 21 and the lock rod body 31, and a connecting block 223 is arranged between the fixed block A221 and the fixed block B222. An oil inlet channel 224 is arranged in the inner side of the fixed block A221 and the connecting block 223, and a shunt channel 225 is further arranged in the inner side of the connecting block 223, and the shunt channel 225 is in communication with the oil inlet channel 224. The lubricating oil is injected from the opening of the oil inlet channel 224 and discharged through the shunt channel 225, which can flow into the hole where the connecting block 223 is rotatably connected with the lock rod body 31 and the mounting block 21, so as to achieve the purpose of lubrication.

[0030] In this embodiment: when in use, the lubricating oil is injected from the opening of the oil inlet channel 224, so that the lubricating oil can flow into the connecting block 223, and then flow out along the shunt channel 225, so that the hole between the connecting block 223, the lock rod body 31 and the mounting block 21 is distributed with lubricating oil, which can effectively realize the lubrication between them, thereby effectively reducing the wear and tear, increasing the service life of the connecting piece 22 between the lock rod body 31 and the mounting block 21, and facilitating the restriction of the use of the operating handle 1.

[0031] Working principle: the construction personnel after power off, use the locking rod head 32 to be clamped in the outside of operation handle 1, then use lock head 4 to realize locking, in use state, it has played the locking effect, other construction personnel can find that someone is working when operating, prohibit power supply, played the safety protection of improving construction personnel during power off, when using, lubricating oil is injected from the opening of oil inlet channel 224, so that lubricating oil can flow into connecting block 223, then along the shunt channel 225, make the connecting block 223 and the hole between locking rod body 31 and mounting block 21 distribute lubricating oil, can effectively realize the lubricating effect between the two.

[0032] The contents not described in detail in the specification belong to the prior art known to the person skilled in the art.

[0033] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model shall be included in the protection scope of the utility model.

Claims

1. A locking lever device for a frequency converter switch, comprising an operating handle (1) for frequency converter switch operation and a frequency converter switch body horn (2) provided on one side of the operating handle (1), characterized in that: The variable frequency converter switch body horn mouth (2) is provided with a locking member (3) on one side, the locking member (3) is provided with a lock head (4) on one side, and the locking member (3) is arranged outside the operating handle (1); The locking member (3) comprises a locking rod body (31) and a locking rod head (32) connected with one end of the locking rod body (31), and the surface of the locking rod head (32) is provided with an opening (33) for the lock rope of the lock head (4) to pass through, and the inner side of the opening (33) is provided with a rubber pad (34).

2. A latching lever assembly for a frequency converter switch according to claim 1, wherein: The locking rod body (31) is made of a galvanized flat iron material, and the locking rod head (32) is a corner structure made of a flat iron with a 90° angle.

3. A latching lever assembly for a frequency changer switch as defined in claim 2 wherein: The variable frequency converter switch body horn mouth (2) is provided with a mounting block (21) on the outside, the mounting block (21) is provided with a connecting piece (22) on one side, and one end of the locking rod body (31) is connected with the mounting block (21) through the connecting piece (22).

4. A latching lever assembly for a frequency converter switch according to claim 3, wherein: The inner side of the opening (33) is uniformly provided with a groove (331), and the outer side of the rubber pad (34) is uniformly provided with a protruding block (341), and the protruding block (341) is matched with the groove (331), and the rubber pad (34) is installed in the opening (33) by the groove (331) and the protruding block (341).

5. A latching lever assembly for a frequency changer switch as defined in claim 4 wherein: The inner side of the locking rod head (32) is adhered with a protective pad (321).

6. A latching lever assembly for a frequency changer switch according to claim 5, wherein: The connecting piece (22) comprises a fixed block A (221) and a fixed block B (222), the fixed block A (221) and the fixed block B (222) are arranged outside the mounting block (21) and the locking rod body (31) respectively, and a connecting block (223) is arranged between the fixed block A (221) and the fixed block B (222), an oil inlet channel (224) is arranged in the fixed block A (221) and the connecting block (223), a shunt channel (225) is further arranged in the connecting block (223), and the shunt channel (225) is communicated with the oil inlet channel (224).

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