A manual energy storage drive assembly for an energy storage type operating mechanism

Abstract

The present invention relates to a manual energy storage drive assembly for an energy storage type operating mechanism, which includes an energy storage drive shaft, an energy storage drive wheel, an energy storage push rod, and a drive group. The energy storage drive wheel is an energy storage ratchet. The drive group includes a positioning ratchet tooth arranged on a frame, an energy storage drive plate arranged on the energy storage drive shaft, a drive ratchet tooth arranged on the energy storage drive plate, and a handle group for driving the energy storage drive plate to rotate. A positioning return spring is arranged between the positioning ratchet tooth and the frame, a drive return spring is arranged between the drive ratchet tooth and the handle group, and the energy storage drive plate and the energy storage ratchet are connected through a one-way bearing. While adopting a flat design, the simplicity of the structure and the modularization of assembly are considered; the product height and cost are reduced to about half of those of similar products, and the assembly efficiency is increased by more than 3 times; the manual control adopts a combination mode of a manual push plate driving the drive ratchet tooth to drive the drive ratchet, which reduces the product height on the basis of reducing parts and saves space for other functional components.

Description

Technical Field

[0001] The present invention relates to the technical field of circuit breaker control, and in particular to a manual energy storage driving assembly for an energy storage type operating mechanism. Background Art

[0002] Most of the electric operating mechanisms used in circuit breakers on the market can be remotely controlled, and their opening or closing time is about 1 second, which cannot meet the occasions where quick closing operation is required when receiving a closing command. Therefore, an operating mechanism that can reduce the closing operation time is needed.

[0003] Currently, there are already many energy storage type electric operating mechanisms on the market that can shorten the time to within 100 milliseconds. It can store mechanical energy and release the mechanical energy when closing is required to achieve the purpose of rapid closing. Chinese Patent (CN107910235B) discloses an energy storage operating mechanism for a circuit breaker, which mainly drives the rocker arm assembly inside by means of an electric motor and a gear set, and at the same time releases mechanical energy by means of an electromagnet to achieve rapid closing. Chinese Patent (CN113421804A) discloses an energy storage type operating mechanism for a circuit breaker, which realizes energy storage operation automatically and manually, and releases energy by unlocking and driving the rocker arm assembly to move to achieve the purpose of rapid closing.

[0004] Most of the pre-energy storage operating mechanisms on the market use a vertical mechanism to compress the spring to achieve energy storage, and then the electromagnet coil is energized to unlock and release energy for use when the circuit breaker closes. Such an energy storage operating mechanism has a high height, a complex structure, is not convenient for assembly and maintenance, has a high cost, and the product cannot be applied in some occasions where the height space is limited due to its high height. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a manual energy storage driving assembly for an energy storage type operating mechanism that is convenient for assembly, convenient for assembly and maintenance, has a low production cost, is small in size, has a fast reaction speed, and has a high linkage.

[0006] The technical solution adopted by the present invention to solve its technical problems is as follows: A manual energy storage driving component for an energy storage type operating mechanism, which is used to drive the energy storage component to move in the opening direction, includes an energy storage driving shaft arranged on the frame, an energy storage driving wheel arranged on the energy storage driving shaft, an energy storage push rod arranged on the energy storage driving wheel, and a driving group for manually driving the rotation of the energy storage driving shaft. The energy storage driving wheel is an energy storage ratchet wheel. The driving group includes a positioning ratchet tooth arranged on the frame, an energy storage driving plate arranged on the energy storage driving shaft, a driving ratchet tooth arranged on the energy storage driving plate, and a handle group for driving the rotation of the energy storage driving plate. A positioning return spring is arranged between the positioning ratchet tooth and the frame, a driving return spring is arranged between the driving ratchet tooth and the handle group, and the energy storage driving plate is connected to the energy storage ratchet wheel through a one-way bearing.

[0007] More specifically, the handle group includes a manual push plate arranged on the frame, a manual rotating plate for driving the movement of the manual push plate, a manual connecting rod for driving the swinging of the manual rotating plate, and an energy storage handle for driving the movement of the manual connecting rod. A rotation return spring is arranged on the manual rotating plate.

[0008] More specifically, a first manual rotating shaft and a second manual rotating shaft are arranged on the frame. The manual rotating plate is arranged on the first manual rotating shaft, and the energy storage handle is arranged on the second manual rotating shaft. A first manual connecting shaft is arranged on the manual rotating plate, a second manual connecting shaft is arranged on the energy storage handle, and the manual connecting rod is arranged between the first manual connecting shaft and the second manual connecting shaft.

[0009] More specifically, a manual push groove is formed on the manual rotating plate, a manual push rod is arranged on the manual push plate, and the manual push rod is inserted into the manual push groove.

[0010] More specifically, a bushing or a roller that can rotate around the manual push rod is sleeved on the manual push rod.

[0011] More specifically, a manual guiding shaft is arranged on the frame, a manual guiding groove is arranged on the manual push plate, and the manual guiding shaft is inserted into the manual guiding groove.

[0012] More specifically, a manual driving groove is formed on the manual push plate, a manual driving shaft is arranged on the ratchet wheel, and the manual driving shaft is inserted into the manual driving groove.

[0013] More specifically, one side of the manual driving groove is open, and the manual driving shaft enters the manual driving groove from the opening.

[0014] More specifically, a push plate return spring is arranged between the manual push plate and the frame.

[0015] More specifically, a section of tooth profile and a section of smooth surface are provided on the circumference of the energy storage ratchet.

[0016] The beneficial effects of the present invention are as follows: While adopting a flat design, the simplicity of the structure and the modularization of assembly are considered; the height and cost of the product are reduced to about half of those of similar products, and the assembly efficiency is increased by more than 3 times; the manual control adopts a combination method of a manual push plate driving a driving ratchet tooth to drive a driving ratchet, which reduces the product height on the basis of reducing parts and saves space for other functional components. Description of the Drawings

[0017] Figure 1 is a schematic assembly structure diagram of the energy storage operating mechanism and the circuit breaker of the present invention;

[0018] Figure 2 is a schematic structure diagram of the energy storage operating mechanism of the present invention;

[0019] Figure 3 is a schematic assembly structure diagram of the energy storage component, the energy storage driving component (automatic), and the frame of the present invention;

[0020] Figure 4 is a schematic assembly structure diagram of the energy storage component and the energy storage driving component (automatic) of the present invention;

[0021] Figure 5 is a schematic structure diagram of the automatic control component of the present invention;

[0022] Figure 6 is a schematic structure of the energy storage driving component (manual) of the present invention Figure 1 ;

[0023] Figure 7 is a schematic structure of the energy storage driving component (manual) of the present invention Figure 2 。

[0024] In the figure: 100, circuit breaker; 200, energy storage operating mechanism; 201, frame; 210, energy storage component; 212, energy storage slider; 2121, pushing position; 240, energy storage driving component; 241, energy storage driving shaft; 242, energy storage driving wheel; 243, energy storage push rod; 2441, energy storage driving gear; 2442, energy storage motor; 2443, energy storage gear set; 2451, positioning ratchet; 2452, energy storage driving plate; 2453, driving ratchet; 2454, manual push plate; 2455, manual rotating plate; 2456, manual connecting rod; 2457, energy storage handle; 2458, first manual rotating shaft; 2459, second manual rotating shaft; 24510, first manual connecting shaft; 24511, second manual connecting shaft; 24512, manual driving groove; 24513, manual driving shaft; 24541, manual push rod; 24542, manual guiding groove; 24551, manual pushing groove; 2011, manual guiding shaft; 270, automatic control component; 271, turntable; 272, second microswitch; 273, control notch. Detailed implementation manners

[0025] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0026] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0027] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations. In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0028] As Figure 1 shown in the figure is the energy storage type operating mechanism 200 and the circuit breaker 100 applying the energy storage drive assembly 240 of the present application; the energy storage drive assembly 240 is used to drive the energy storage assembly 210 to move in the opening direction, and the energy storage drive assembly 240 directly realizes the energy storage of the energy storage assembly by pushing the pushing position 2121 on the energy storage slider 212 of the energy storage assembly 210.

[0029] As Figure 2 And Figure 3 shown, the energy storage drive assembly 240 includes an energy storage drive shaft 241 arranged on the frame 201, an energy storage drive wheel 242 arranged on the energy storage drive shaft 241, an energy storage push rod 243 arranged on the energy storage drive wheel 242, and a drive group for driving the energy storage drive shaft 241 to rotate; a pushing roller is arranged on the energy storage push rod 243, and the pushing roller is arranged at the pushing position 2121 of the energy storage slider 212 and contacts the second plate 2152 of the limiting protrusion 215; the drive group drives the energy storage drive shaft 241 to rotate, the energy storage drive shaft 241 drives the energy storage drive wheel 242 to rotate, the energy storage push rod 243 rotates around the axis of the energy storage drive shaft 241, and a relative reciprocating motion exists between the pushing roller and the energy storage slider 212 to realize the pushing of the energy storage slider 212.

[0030] Based on the structure of the above-mentioned energy storage drive assembly 240, the drive group can have two drive forms, namely automatic drive and manual drive.

[0031] Among them, as Figure 2 And Figure 3 shown, the drive group of the automatic drive includes an energy storage drive gear 2441 arranged on the energy storage drive shaft 241, an energy storage motor 2442 arranged on the frame 201, and an energy storage gear group 2443 arranged between the energy storage drive gear 2441 and the energy storage motor 2442. The energy storage drive gear 2441 is connected to the energy storage drive shaft 241 through a one-way bearing; the rotation of the energy storage motor 2442 drives the energy storage drive gear 2441 to rotate through the energy storage gear group 2443, and the energy storage drive gear 2441 drives the energy storage drive shaft 241 to rotate, thereby realizing the pushing of the energy storage slider 212; and the energy storage one-way bearing can ensure that the energy storage drive shaft 241 only rotates in one direction and will not affect the energy storage drive shaft 241 when the energy storage motor 2442 rotates in reverse.

[0032] Based on the above-mentioned form of automatic drive, in order to be able to control the energy storage motor 2442 to stop working in time after energy storage, an automatic control component 270 is arranged on the energy storage drive shaft 241, as Figure 5The automatic control component 270 shown includes a turntable 271 arranged on the upper part of the energy storage drive shaft 241. A control notch 273 is arranged on the circumference of the turntable 271. A second microswitch 272 is arranged beside the turntable 271. The rotation of the turntable 271 makes the contact of the second microswitch 272 contact with the circumference of the turntable 271. When the contact enters the control notch 273, it indicates that the energy storage has ended, and the second microswitch 272 disconnects to control the energy storage motor 2442 to stop working.

[0033] As Figure 6 And Figure 7 The manually driven drive group shown includes an energy storage drive wheel 242 arranged on the energy storage drive shaft 241, a positioning ratchet tooth 2451 arranged on the frame 201, an energy storage drive plate 2452 arranged on the energy storage drive shaft 241, a drive ratchet tooth 2453 arranged on the energy storage drive plate 2452, and a handle group for driving the energy storage drive plate 2452 to rotate. The energy storage drive wheel 242 is an energy storage ratchet. A positioning return spring is arranged between the positioning ratchet tooth 2451 and the frame 201, and a torsion spring is used for the positioning return spring here; a drive return spring is arranged between the drive ratchet tooth 2453 and the handle group, and a tension spring is used for the drive return spring here; the energy storage drive plate 2452 is connected to the energy storage ratchet through a manual one-way bearing; the movement output by the handle group is reciprocating linear motion, which is defined as the first-direction linear motion and the second-direction linear motion. When the handle group outputs the first-direction linear motion, the energy storage drive plate 2452 drives the energy storage drive shaft 241 to rotate clockwise. At this time, the drive ratchet tooth 2453 cooperates with the tooth shape of the energy storage ratchet and pushes the energy storage ratchet to rotate clockwise. When the first-direction linear motion ends, the positioning ratchet tooth 2451 inserts into the tooth shape of the energy storage ratchet to prevent the energy storage ratchet from reversing; when the handle group outputs the second-direction linear motion, the energy storage drive plate 2452 rotates counterclockwise around the energy storage drive shaft 241. Due to the action of the manual one-way bearing, the positioning ratchet tooth 2451 and the positioning ratchet, the rotation of the energy storage drive plate 2452 alone will not drive the energy storage drive shaft 241 to rotate. At the same time, the energy storage drive plate 2452 drives the drive ratchet tooth 2453 to move counterclockwise. When the second-direction linear motion ends, the drive ratchet tooth 2453 inserts into the tooth shape of the energy storage ratchet. After that, the first-direction linear motion and the second-direction linear motion are alternately performed to realize the single-direction rotation of the energy storage drive shaft 241 manually.

[0034] In order to ensure that the energy storage slider 212 moves to a suitable position, a section of tooth shape and a section of smooth surface are arranged on the circumference of the energy storage ratchet. The drive ratchet tooth 2453 can only push the energy storage ratchet to rotate when it acts on the tooth shape, and it slides on the smooth surface and will not push the energy storage ratchet to move. The lengths of the tooth shape and the smooth surface are both obtained by converting the distance that the energy storage slider 212 moves.

[0035] The handle set includes a manual push plate 2454 arranged on the frame 201, a manual rotating plate 2455 for driving the movement of the manual push plate 2454, a manual connecting rod 2456 for driving the swinging of the manual rotating plate 2455, and a storage energy handle 2457 for driving the movement of the manual connecting rod 2456. A rotation return spring, which is a torsion spring, is arranged on the manual rotating plate 2455. Wherein, a first manual rotating shaft 2458 and a second manual rotating shaft 2459 are arranged on the frame 201. The manual rotating plate 2455 is arranged on the first manual rotating shaft 2458, and the storage energy handle 2457 is arranged on the second manual rotating shaft 2459. A first manual connecting shaft 24510 is arranged on the manual rotating plate 2455, and a second manual connecting shaft 24511 is arranged on the storage energy handle 2457. The manual connecting rod 2456 is arranged between the first manual connecting shaft 24510 and the second manual connecting shaft 24511. The manual push plate 2454 can make a reciprocating linear motion relative to the frame 201. The manual push plate 2454 outputs a reciprocating linear motion to the storage energy driving plate 2452. A manual driving groove 24512 is formed on the manual push plate 2454. A manual driving shaft 24513 is arranged on the storage energy ratchet wheel. The manual driving shaft 24513 is inserted into the manual driving groove 24512 and can slide in the manual driving groove 24512. One end of the manual driving groove 24512 is open, and the manual driving shaft 24513 enters the manual driving groove 24512 from the opening. At the same time, a push plate return spring, which is a tension spring at this time, is arranged between the manual push plate 2454 and the frame 201.

[0036] The manual push plate 2454 is driven by the back-and-forth swinging of the manual rotating plate 2455. The manual rotating plate 2455 is fan-shaped, and the first manual rotating shaft 2458 is arranged at the center of the fan shape. A manual pushing groove 24551 is formed on the manual rotating plate 2455. A manual pushing rod 24541 is arranged on the manual push plate 2454. The manual pushing rod 24541 is inserted into the manual pushing groove 24551. The swinging of the manual rotating plate 2455 drives the manual pushing rod 24541 to make a reciprocating linear motion through the manual pushing groove 24551. In order to improve the service life, a bushing or a roller is sleeved on the manual pushing rod 24541. The bushing and the roller can rotate around the manual pushing rod 24541. The bushing or the roller and the manual pushing groove 24551 are in rolling friction to reduce friction loss.

[0037] The first manual connection shaft 24510 is provided at one end of the manual rotation plate 2455, and the second manual connection shaft 24511 is provided at one end of the energy storage handle 2457. The other end of the energy storage handle 2457 is the operation end. The second manual rotation shaft 2459 is provided between the second manual connection shaft 24511 and the operation end, making the energy storage handle 2457 a lever structure. The distance between the second manual rotation shaft 2459 and the second manual connection shaft 24511 is closer than the distance between the second manual rotation shaft 2459 and the operation end. By swinging the energy storage handle 2457 around the second manual rotation shaft 2459 through the operation end, the energy storage handle 2457 transmits the swinging motion to the manual rotation plate 2455 through the manual connecting rod 2456, causing the manual rotation plate 2455 to swing. The swing of the manual rotation plate 2455 is converted into a reciprocating linear motion through the combination of the manual push groove 24551 and the manual push rod 24541.

[0038] Furthermore, in order to ensure the smooth movement of the manual push plate 2454, a manual guide shaft 2011 is provided on the frame 201, and a manual guide groove 24542 is provided on the manual push plate 2454. The manual guide shaft 2011 is inserted into the manual guide groove 24542, and the manual guide shaft 2011 can slide within the manual guide groove 24542, thereby restricting the movement direction of the manual push plate 2454.

[0039] In summary, through the combination of the above components, the energy storage type operating mechanism can be automatically controlled by the energy storage motor 2442 or manually controlled, which is convenient for circuit maintenance. At the same time, while adopting a flat design, the simplicity of the structure and the modularization of assembly are considered. The product height and cost are reduced to about half of similar products, the assembly efficiency is increased by more than 3 times, and the product height is reduced on the basis of reducing parts, saving space for other functional components.

[0040] It should be emphasized that the above are only the preferred embodiments of the present invention, and there is no limitation to the present invention in any form. Any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A manual energy storage driving component for an energy storage type operating mechanism, which is used to drive an energy storage component (210) to move in the opening direction, and is characterized in that, It includes an energy storage drive shaft (241) arranged on a frame (201), an energy storage drive wheel (242) arranged on the energy storage drive shaft (241), an energy storage push rod (243) arranged on the energy storage drive wheel (242), and a drive group for manually driving the rotation of the energy storage drive shaft (241). The energy storage drive wheel (242) is an energy storage ratchet. The drive group includes a positioning ratchet tooth (2451) arranged on the frame (201), an energy storage drive plate (2452) arranged on the energy storage drive shaft (241), a drive ratchet tooth (2453) arranged on the energy storage drive plate (2452), and a handle group for driving the rotation of the energy storage drive plate (2452). A positioning return spring is arranged between the positioning ratchet tooth (2451) and the frame (201), a drive return spring is arranged between the drive ratchet tooth (2453) and the handle group, and the energy storage drive plate (2452) is connected to the energy storage ratchet through a one-way bearing; The handle group includes a manual push plate (2454) arranged on the frame (201), a manual rotating plate (2455) for driving the movement of the manual push plate (2454), a manual connecting rod (2456) for driving the swinging of the manual rotating plate (2455), and an energy storage handle (2457) for driving the movement of the manual connecting rod (2456). A rotation return spring is arranged on the manual rotating plate (2455); the manual push plate (2454) makes a reciprocating linear motion relative to the frame (201) and outputs a reciprocating linear motion to the energy storage drive plate (2452); A manual drive groove (24512) is formed on the manual push plate (2454), a manual drive shaft (24513) is arranged on the energy storage drive plate (2452), and the manual drive shaft (24513) is inserted into the manual drive groove (24512); the manual push plate (2454) extends towards the side close to the energy storage drive wheel (242) to form an extended end, and an included angle is formed between the manual push plate (2454) and the extended end; the manual drive groove (24512) is arranged on the extended end.

2. The manual energy storage driving assembly for the energy storage type operating mechanism according to claim 1, wherein, A first manual rotating shaft (2458) and a second manual rotating shaft (2459) are arranged on the frame (201). The manual rotating plate (2455) is arranged on the first manual rotating shaft (2458), and the energy storage handle (2457) is arranged on the second manual rotating shaft (2459); a first manual connecting shaft (24510) is arranged on the manual rotating plate (2455), a second manual connecting shaft (24511) is arranged on the energy storage handle (2457), and the manual connecting rod (2456) is arranged between the first manual connecting shaft (24510) and the second manual connecting shaft (24511).

3. The manual energy storage driving assembly for an energy storage type operating mechanism according to claim 1, wherein A manual push groove (24551) is formed on the manual rotating plate (2455), a manual push rod (24541) is arranged on the manual push plate (2454), and the manual push rod (24541) is inserted into the manual push groove (24551).

4. The manual energy storage driving assembly for the energy storage type operating mechanism according to claim 3, characterized in that, A sleeve or a roller that can rotate around the manual push rod (24541) is sleeved on the manual push rod (24541).

5. The manual energy storage driving assembly for an energy storage type operating mechanism according to claim 1, characterized in that, A manual guide shaft (2011) is provided on the frame (201), and a manual guide groove (24542) is provided on the manual push plate (2454). The manual guide shaft (2011) is inserted into the manual guide groove (24542).

6. The manual energy storage driving assembly for an energy storage type operating mechanism according to claim 1, wherein One side of the manual drive groove (24512) is open, and the manual drive shaft (24513) enters the manual drive groove (24512) from the opening.

7. The manual energy storage driving assembly for an energy storage type operating mechanism according to claim 1, characterized in that, A push plate return spring is provided between the manual push plate (2454) and the frame (201).

8. The manual energy storage driving assembly for an energy storage type operating mechanism according to claim 1, characterized in that, A section of tooth shape and a section of smooth surface are provided on the circumference of the energy storage ratchet wheel.

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