Circuit breaker and disconnecting switch operating device

Abstract

The invention relates to the technical field of circuit breakers, in particular to a circuit breaker and disconnecting switch operating device, which comprises an assembling component, a first connecting component, a second connecting component, a first connecting component, a second connecting component, a third connecting component, a fourth connecting component, a fourth connecting component and a fifth connecting component, and is characterized in that the assembling component comprises a shell, a through hole, a first accommodating cavity, a second accommodating cavity, a partition plate and a groove; the control assembly comprises two operating rods arranged in the through holes respectively, one end of one operating rod is connected to the circuit breaker, one end of the other operating rod is connected to the disconnecting switch, and the two rotating columns are symmetrically and movably arranged in the second containing cavity; and the adjusting assembly comprises a handle arranged in the second accommodating cavity, safe opening or closing of the circuit breaker and the isolating switch is realized by controlling the motor and arranging a baffle plate, and a standby manual operation mode is additionally provided.

Description

Technical Field

[0001] The invention relates to the technical field of circuit breakers, in particular to a circuit breaker and an isolating switch operating device. Background Art

[0002] High-voltage switchgear plays three main roles in power grid control: control, protection and safety isolation. It also plays a role in carrying rated current in power transmission. The safety and stability of high-voltage switchgear will directly affect the safe operation and reliable power supply of the entire power grid. Among them, switchgear is one of the most important high-voltage switchgear in the distribution network and is widely used in power systems.

[0003] Circuit breakers and disconnectors are important components in the design of substation switchgear. The two are usually used independently to perform different functions. Circuit breakers are mechanical switchgear that can close, carry and break current under normal circuit conditions, and can carry and break current under abnormal circuit conditions within a specified time. Disconnectors are switchgear that have insulation distances that meet the specified requirements and obvious disconnection marks between contacts when in the open position; when in the closed position, they can carry current under normal circuit conditions and current under abnormal conditions within a specified time; circuit breakers and disconnectors are usually used at the same time, but the existing operating devices of circuit breakers and disconnectors are separate, and the operation is cumbersome, and the opening and closing of circuit breakers and disconnectors need to follow the order of safety rules. When disconnecting the line, the circuit breaker needs to be disconnected first, and then the disconnector. When closing, the disconnector needs to be closed first, and then the circuit breaker. However, the operating devices of circuit breakers and disconnectors currently do not have measures to prevent reverse operation, which is very dangerous when used and needs to prevent misoperation.

[0004] Therefore, in order to solve this technical problem and retain the backup manual control method, while preventing the operating device from operating in reverse and increasing safety, we propose a circuit breaker and disconnector operating device. Summary of the invention

[0005] In view of the above existing technical problems, the present invention is proposed.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a circuit breaker and disconnector operating device, comprising: an assembly component, including a shell, a through hole arranged on the outer wall of the shell, a first accommodating chamber and a second accommodating chamber respectively arranged in the shell, a partition arranged on the inner wall of the shell and a groove arranged on the partition; a control component, including two operating rods respectively arranged in the through hole, one end of which is connected to the circuit breaker, and one end of which is connected to the disconnector, and two rotating columns symmetrically arranged in the second accommodating chamber; an adjustment component, including a handle arranged in the second accommodating chamber.

[0007] As a preferred solution of the circuit breaker and disconnector operating device of the present invention, the outer wall of the shell is provided with an operating port, the second accommodating chamber is provided with a motor, the output end of the motor is provided with a rotating shaft, and a fixing frame is provided under the motor.

[0008] As a preferred solution of the circuit breaker and disconnector operating device of the present invention, the outer wall of the rotating shaft is provided with a transmission gear, the outer wall of the transmission gear is meshed with a transmission rack, and the transmission rack is movably matched with the groove.

[0009] As a preferred solution of the circuit breaker and disconnector operating device of the present invention, a connecting plate is provided at one end of the transmission rack, a sliding block is provided on the outer wall of the connecting plate, a sliding groove is provided on the operating rod, and the sliding groove is movably matched with the sliding block, and a first turntable is provided on the outer walls of the two rotating columns.

[0010] As a preferred solution of the circuit breaker and disconnector operating device of the present invention, the outer walls of the two first rotating disks are provided with movable columns, the movable columns are movably matched with the transmission rack, and the two rotating columns are provided with matching disks.

[0011] As a preferred solution of the circuit breaker and disconnector operating device of the present invention, a plurality of baffles are arranged in a ring shape on both of the two matching disks, and the baffles on one matching disk are in staggered contact with the baffles on the other matching disk.

[0012] As a preferred solution of the circuit breaker and disconnector operating device of the present invention, a second turntable is provided outside the first turntable, a connecting ring is provided between the first turntable and the second turntable, and two movable grooves are provided on the rotating column.

[0013] As a preferred solution of the circuit breaker and disconnector operating device of the present invention, wherein: movable blocks are provided on the first turntable and the second turntable, and the movable blocks are movably matched with the movable grooves, an elastic member is provided between the movable block and the movable groove, and an annular groove is provided on the rotating column.

[0014] As a preferred solution of the circuit breaker and disconnector operating device of the present invention, a disc is movably provided in the annular groove, the disc is connected to the handle, the handle is respectively provided with a first connecting block and a second connecting block, and the second connecting block is respectively provided with a clamping column and a first slope.

[0015] As a preferred solution of the circuit breaker and disconnector operating device of the present invention, the second turntable is provided with a connecting plate, the connecting plate is provided with a second slope, and the second slope is movably matched with the first slope, the ends of the connecting plate are respectively provided with a first stopper and a second stopper, a column is provided inside the second accommodating cavity, the column is provided with a card slot, the card slot is movably matched with the first connecting block, and the second stopper is provided with a clamping cylinder.

[0016] The beneficial effects of the present invention are as follows: two operating levers are provided to control the circuit breaker and the isolating switch respectively. When disconnecting the line, the circuit breaker needs to be disconnected first and then the isolating switch. When closing the line, the isolating switch needs to be closed first and then the circuit breaker. In order to prevent directional operation, staggered baffles are provided. Only when the operating levers are moved in sequence, the movement of the matching disk will not be interfered with. If the operation is performed in the opposite sequence, the baffles are provided to prevent their movement, thereby ensuring the safety of the circuit. In addition, if a motor control circuit failure occurs, an additional handle can improve the backup manual operation so that the equipment can continue to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the overall connection structure of the assembly components in the present invention.

[0019] Figure 2 It is a schematic diagram of the internal connection structure of the shell in the present invention.

[0020] Figure 3 It is a schematic diagram of the baffle connection structure in the present invention.

[0021] Figure 4 It is a schematic diagram of the connection structure of the slider in the present invention.

[0022] Figure 5 It is a schematic diagram of the connection structure of the control components in the present invention.

[0023] Figure 6 It is a schematic diagram of the elastic member connection structure in the present invention.

[0024] Figure 7 It is a schematic diagram of the connection structure of the adjustment component in the present invention.

[0025] Figure 8 It is a schematic diagram of the second slope connection structure in the present invention. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0027] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0029] Example 1, reference Figure 1 to Figure 5 , which is the first embodiment of the present invention, provides a circuit breaker and disconnector operating device, which prevents workers from reversely operating the circuit breaker and disconnector by setting a control component 200, and can provide a backup manual operation method through the handle 301.

[0030] Specifically, the assembly component 100 includes a shell 101, a through hole 101a provided on the outer wall of the shell 101, a first accommodating chamber 101b and a second accommodating chamber 101c respectively provided in the shell 101, a partition 102 provided on the inner wall of the shell 101 and a groove 102a provided on the partition 102; the control component 200 includes two operating rods 201 respectively provided in the through hole 101a, one end of one operating rod 201 is connected to the circuit breaker, and one end of the other operating rod 201 is connected to the isolating switch, and two rotating columns 202 are symmetrically and movably provided in the second accommodating chamber 102c; the adjustment component 300 includes a handle 301 provided in the second accommodating chamber 102c.

[0031] Preferably, an operation port 101d is provided on the outer wall of the housing 101 , a motor 203 is provided in the second accommodating cavity 101c , a rotating shaft 203a is provided at the output end of the motor 203 , and a fixing frame 203b is provided below the motor 203 .

[0032] Among them, two through holes 101a are preferably symmetrically provided; by setting two operating levers 201, the circuit breaker and the isolating switch are controlled respectively. By default, the operating lever 201 moves into the shell 101 to disconnect, and moves in the opposite direction to close; the outer wall of the rotating column 202 is provided with a placement frame 202a, which is used to place the rotating column 202 without affecting its rotation; the handle 301 is mainly provided to have a spare manual operation setting when the control circuit of the motor 203 fails, and the circuit breaker and the isolating switch can be controlled by rotating the handle 301; the operating port 101d is opened at the bottom of the shell 101, and the staff can pry the handle 301 into the shell 101 from the operating port 101d; the fixing frame 203b is fixedly connected to the inner wall of the shell 101.

[0033] In summary, by controlling the movement of the two operating levers 201 respectively, the opening and closing of the circuit breaker and the disconnector can be controlled, and the staff can be prevented from accidentally performing reverse operations, further ensuring the stable and safe operation of the circuit. When the motor 203 fails, manual operation control can also be adopted.

[0034] Example 2, reference Figure 1 to Figure 5 , which is the second embodiment of the present invention, is based on the previous embodiment, except that the motor 203 can be turned on by remote control, the motor 203 rotates, the transmission rack 204 moves and pulls the operating rod 201, thereby controlling the opening or closing of the circuit breaker and the disconnector.

[0035] Specifically, a transmission gear 203a-1 is disposed on the outer wall of the rotating shaft 203a, and a transmission rack 204 is meshedly disposed on the outer wall of the transmission gear 203a-1, and the transmission rack 204 is movably matched with the groove 102a.

[0036] Preferably, a connecting plate 204a is provided at one end of the transmission rack 204, a slider 204a-1 is provided on the outer wall of the connecting plate 204a, a sliding groove 201a is provided on the operating rod 201, and the sliding groove 201a and the slider 204a-1 are movably matched, and a first turntable 205 is provided on the outer walls of the two rotating columns 202.

[0037] Preferably, the outer walls of the two first rotating disks 205 are each provided with a movable column 205 a , the movable column 205 a movably cooperates with the transmission rack 204 , and the two rotating columns 202 are each provided with a matching disk 206 .

[0038] Preferably, a plurality of baffles 206 a are arranged in an annular shape on both matching disks 206 , and the baffles 206 a on one matching disk 206 are in staggered contact with the baffles 206 a on the other matching disk 206 .

[0039] The movable column 205a is eccentrically connected to the first rotating disk 205; the motor 203 is preferably a forward and reverse motor, which can be controlled to rotate to a certain amplitude and can achieve reverse rotation; assuming that Figure 2 As shown, the operating rod 201 on the right is connected to the circuit breaker, while the operating rod 201 on the left is connected to the isolating switch. The motor 203 can be remotely controlled. When the control motor 203 on the right is running, the transmission gear 203a-1 cooperates with the transmission rack 204, so that the transmission rack 204 pulls the operating rod 201 to move into the housing 101 to disconnect the circuit breaker. The transmission rack 204 drives the movable column 205a, and the movable column 205a is eccentrically connected to the first rotating disk 205, so that the rotating column 202 drives the matching disk 206 to rotate in a certain arc, as shown in FIG. Figure 3 As shown, the matching disk 206 of the control circuit breaker rotates clockwise, so that the baffle 206a of the unpainted part rotates to a certain extent. After the circuit breaker is disconnected, the motor 203 driving the isolating switch is similarly operated, so that the baffle 206a of the painted part can rotate to a certain extent in the same direction, that is, when the circuit is disconnected, the circuit breaker must be disconnected first and then the isolating switch. If the isolating switch is disconnected first, the clockwise rotation of the baffle of the painted part will be interfered by the unpainted baffle 206a next to it through the staggered baffle 206a setting, so that it cannot move. Not only the motor 203 controls, but also the manual operation is carried out through this setting to prevent the staff from operating incorrectly. When closing, the isolating switch must be closed first, and then the circuit breaker, so it is necessary to move the operating rod 201 to the outside of the housing 101. At this time, the motor 203 reverses, and the matching disk 206 also rotates in the opposite direction. It is necessary to rotate the baffle 206a of the painted part first before rotating the baffle 206a of the unpainted part to avoid reverse operation.

[0040] In summary, by setting the motor 203 to further control the movement of the operating rod 201, and using the staggered baffles 206a, the safe operating rules must be followed when opening and closing the circuit of the circuit breaker and the disconnector. If the reverse operation is performed, the baffles 206a will interfere with each other and the matching disk 206 cannot rotate.

[0041] Example 3, reference Figures 1 to 8 , which is the third embodiment of the present invention, is based on the previous embodiment, and the difference is that by setting a handle 301, when a problem occurs in the control circuit of the motor 203, the staff can choose manual operation to control the opening and closing of the circuit by rotating the handle 301.

[0042] Specifically, a second rotating disk 303 is disposed outside the first rotating disk 205 , a connecting ring 303 a is disposed between the first rotating disk 205 and the second rotating disk 303 , and two movable grooves 202 c are disposed on the rotating column 202 .

[0043] Preferably, both the first turntable 205 and the second turntable 303 are provided with a movable block 303b, and the movable block 303b is movably matched with the movable groove 202c, an elastic member 303b-1 is provided between the movable block 303b and the movable groove 202c, and an annular groove 202b is provided on the rotating column 202.

[0044] Preferably, a disc 301c is movably provided in the annular groove 202b, and the disc 301c is connected to the handle 301. The handle 301 is provided with a first connecting block 301a and a second connecting block 301b, respectively. The second connecting block 301b is provided with a clamping column 301b-1 and a first slope 301b-2.

[0045] Preferably, a connecting plate 304 is provided on the second turntable 303, a second slope 304a is provided on the connecting plate 304, and the second slope 304a is movably matched with the first slope 301b-2, a first stop block 304b and a second stop block 304c are respectively provided at the ends of the connecting plate 304, a column 302 is provided inside the second accommodating cavity 101c, a card slot 302a is provided on the column 302, the card slot 302a is movably matched with the first connecting block 301a, and a cartridge 304c-1 is provided on the second stop block 304c.

[0046] It should be noted that the setting of the movable groove 202c can be used to control the moving direction of the first turntable 205 and the second turntable 303; the elastic member 303b-1 is preferably a compression spring for resetting; the annular groove 202b is used to control the rotation position of the handle 301; the cartridge 304c-1 and the column 301b-1 are movably matched.

[0047] Among them, when the control circuit of the motor 203 fails, in order not to affect the normal operation of the equipment, a backup manual operation method is provided to control the opening and closing of the circuit breaker and the disconnector. For manual operation, the rotating column 202 rotates, and the transmission rack 204 and the transmission gear 203a-1 will not be stuck. The initial clamping column 301b-1 is stuck in the clamping cylinder 304c-1. There is a certain friction coefficient on the clamping column 301b-1. For example, rubber material can be used, which can be loosened only under the pulling force of the staff. Then the handle 301 is rotated, and the handle 301 rotates in the annular groove 202b. Further, the first slope 301b-2 will cooperate with the second slope 304a, so that the first turntable 205 and the second turntable 303 move in the movable groove 202c, so that the transmission rack 204 and the transmission gear 20 3a-1 is disengaged, and continuing to rotate the handle 301 will hit the first stop block 304b, so that the handle 301 drives the second turntable 303 to continue to rotate. When it is rotated to the point where the first connecting block 301a is stuck in the slot 302a, the operating rod 201 will be controlled to move within a certain range to achieve the disconnection and closing of the circuit breaker or disconnector. While the transmission rack 204 moves, the slide slot 201a and the slider 204a-1 are movably matched. When the transmission rack 204 is pulled, the operating rod 201 can still be pulled for control, and the manual control method can also avoid reverse operation due to the setting of the baffle 206a. When closing, you only need to rotate the handle 301 in the opposite direction. Under the action of the elastic member 303b-1, the transmission rack 204 can be reset to facilitate the next control of the motor 203.

[0048] In summary, by providing an alternative manual operation method, the staff can turn the handle 301 to insert the first connecting block 301a into the slot 302a. The first connecting block 301a also has a certain friction coefficient and is stuck in the slot 302a. During the movement of the entire handle 301, the operating rod 201 will move accordingly, thereby controlling the opening and closing of the circuit breaker and the disconnector, and also avoiding reverse operation.

[0049] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0050] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0051] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0052] It should be noted that 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 preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A circuit breaker and disconnector operating device, characterized in that: include, An assembly component (100) comprises a shell (101), a through hole (101a) provided on the outer wall of the shell (101), a first accommodating cavity (101b) and a second accommodating cavity (101c) respectively provided in the shell (101), a partition (102) provided on the inner wall of the shell (101), and a groove (102a) provided on the partition (102); A control assembly (200) comprising two operating rods (201) respectively arranged in the through hole (101a), one end of one operating rod (201) being connected to the circuit breaker, and one end of the other operating rod (201) being connected to the disconnector, and two rotating columns (202) symmetrically and movably arranged in the second accommodating cavity (102c); The adjustment assembly (300) comprises a handle (301) disposed in the second accommodating cavity (102c).

2. The circuit breaker and disconnector operating device according to claim 1, characterized in that: An operating port (101d) is provided on the outer wall of the housing (101), a motor (203) is provided in the second accommodating cavity (101c), a rotating shaft (203a) is provided at the output end of the motor (203), and a fixing frame (203b) is provided below the motor (203).

3. The circuit breaker and disconnector operating device according to claim 2, characterized in that: The outer wall of the rotating shaft (203a) is provided with a transmission gear (203a-1), and the outer wall of the transmission gear (203a-1) is meshed with a transmission rack (204), and the transmission rack (204) is movably matched with the groove (102a).

4. The circuit breaker and disconnector operating device according to claim 3, characterized in that: A connecting plate (204a) is provided at one end of the transmission rack (204), a sliding block (204a-1) is provided on the outer wall of the connecting plate (204a), a sliding groove (201a) is provided on the operating rod (201), and the sliding groove (201a) and the sliding block (204a-1) are movably matched, and a first rotating disk (205) is provided on the outer walls of the two rotating columns (202).

5. The circuit breaker and disconnector operating device according to claim 4, characterized in that: The outer walls of the two first rotating disks (205) are both provided with movable columns (205a), the movable columns (205a) are movably matched with the transmission rack (204), and the two rotating columns (202) are both provided with matching disks (206).

6. The circuit breaker and disconnector operating device according to claim 5, characterized in that: A plurality of baffles (206a) are arranged in a ring shape on both of the two matching disks (206), and the baffles (206a) on one matching disk (206) are in staggered contact with the baffles (206a) on the other matching disk (206).

7. The circuit breaker and disconnector operating device according to claim 6, characterized in that: A second rotating disk (303) is disposed outside the first rotating disk (205), a connecting ring (303a) is disposed between the first rotating disk (205) and the second rotating disk (303), and two movable grooves (202c) are disposed on the rotating column (202).

8. The circuit breaker and disconnector operating device according to claim 7, characterized in that: The first rotating disk (205) and the second rotating disk (303) are both provided with movable blocks (303b), and the movable blocks (303b) are movably matched with the movable groove (202c), an elastic member (303b-1) is provided between the movable block (303b) and the movable groove (202c), and an annular groove (202b) is provided on the rotating column (202).

9. The circuit breaker and disconnector operating device according to claim 8, characterized in that: A disc (301c) is movably arranged in the annular groove (202b), the disc (301c) is connected to the handle (301), the handle (301) is respectively provided with a first connecting block (301a) and a second connecting block (301b), and the second connecting block (301b) is respectively provided with a clamping column (301b-1) and a first slope surface (301b-2).

10. The circuit breaker and disconnector operating device according to claim 9, characterized in that: The second rotating disk (303) is provided with a connecting plate (304), the connecting plate (304) is provided with a second slope (304a), and the second slope (304a) is movably matched with the first slope (301b-2), the ends of the connecting plate (304) are respectively provided with a first stopper (304b) and a second stopper (304c), a column (302) is provided inside the second accommodating cavity (101c), the column (302) is provided with a card slot (302a), the card slot (302a) is movably matched with the first connecting block (301a), and the second stopper (304c) is provided with a cartridge (304c-1).

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