A manual closing operating mechanism for a permanent magnetic switch

Abstract

The invention discloses a manual closing operating mechanism for a permanent magnetic switch, comprising a mounting plate, an energy storage transmission component, a latch transmission component, and an operation interlocking assembly. The energy storage transmission component is used for driving the closing operation by instantaneously releasing energy after energy storage by an energy storage spring, and adopts a spring energy storage form to replace direct human power operation for closing operation, which is safe and labor-saving. At the same time, through the cooperation of the latch transmission component and the operation interlocking assembly, an operation interlocking is added to the structure, ensuring that the permanent magnetic switch will not be opened due to excessive closing bounce, thereby realizing manual and reliable closing of the permanent magnetic switch.

Description

Technical Field

[0001] The invention belongs to the technical field of electric operating mechanisms, and in particular relates to a manual closing operating mechanism for a permanent magnetic switch. Background Art

[0002] At present, circuit breaker products in the market mostly use spring operating mechanisms. Spring operating mechanisms use the stored energy spring as the power to operate the circuit breaker. The opening time is relatively long, generally about 40ms. Permanent magnet mechanism is based on the spring operating mechanism, overcomes its shortcomings, and applies permanent magnets to the operating mechanism. Its opening time is generally controlled within 20ms, which can quickly cut off the fault point. Therefore, it has become a hot spot of concern for switch manufacturers, power grid companies and high-tech heavy industry companies, and has a very broad market prospect.

[0003] When the permanent magnet mechanism performs manual closing operation, a lot of energy is required and a certain movement speed must be guaranteed. The manual lever cannot provide the energy required for closing, so the permanent magnet switch is generally not equipped with a manual closing function. In order to address this defect, it is urgent to design a manual closing operating mechanism for the permanent magnet switch. Summary of the invention

[0004] Purpose: In order to overcome the deficiencies in the prior art, the present invention provides a manual closing operating mechanism for a permanent magnetic switch.

[0005] Technical solution: To solve the above technical problems, the technical solution adopted by the present invention is:

[0006] In a first aspect, a manual closing operating mechanism for a permanent magnetic switch is provided, comprising a mounting plate, an energy storage transmission component, a latch transmission component, and an operation interlocking assembly;

[0007] The energy storage transmission component includes an energy storage sleeve, a gear transmission chain, a cam, an energy storage spring, and a transmission crank arm; the first end of the energy storage spring is connected to the fixed shaft of the mechanism; the second end of the energy storage spring is connected and installed on the gear transmission chain; the cam is installed on the gear transmission chain; the first end of the energy storage sleeve is used to be connected to the external force operating member to provide torque, and the second end of the energy storage sleeve is drivingly connected to the gear transmission chain; the transmission crank arm includes a roller arranged at the first end, a roller arranged at the second end, and a permanent magnetic switch connecting part arranged at the upper end; the roller, the roller, and the permanent magnetic switch connecting part all rotate synchronously with the central rotating shaft of the transmission crank arm;

[0008] The detent transmission component includes a detent, a stopper, a stopper reset spring, and a detent reset spring; the detent is installed on the detent through a pin shaft, the detent is provided with a detent limit surface - and a detent rolling surface -, and the lower end of the detent is provided with a detent lower end linkage limit portion -; the detent and the pin shaft are provided with a detent reset spring;

[0009] The operation interlocking assembly includes a transmission plate, a reset spring, a release plate, and a release half-shaft; the release half-shaft is located on the side of the latch transmission component away from the transmission crank arm, and is driven to rotate by the energy storage sleeve through the transmission plate, the reset spring, and the release plate, wherein the release half-shaft and the lower end linkage limit part of the latch are provided with a half-shaft notch and a half-shaft arc surface at corresponding positions; the half-shaft notch is used to give a clearance space to the lower end linkage limit part of the latch during the electric process;

[0010] During the manual closing operation, the energy storage sleeve is connected to input torque drive to provide energy storage power for the energy storage spring. After the energy storage spring is stretched to the middle position and energy storage is completed, the energy is released instantly, driving the cam installed on the gear transmission chain to rotate rapidly. During the rotation of the cam, the impact roller drives the central axis of the transmission crank arm to rotate. The permanent magnetic switch connection part rotates to drive the permanent magnetic switch to close the switch. At the same time, the roller slides downward along the stopper rolling surface to the bottom of the stopper. Under the action of the stopper reset spring, the stopper quickly returns to the original position and the stopper limit surface catches the returning roller, thereby fixing the transmission crank arm;

[0011] At the same time, the energy storage sleeve drives the release half-shaft to rotate until the half-shaft arc surface - faces the linkage limit part at the lower end of the latch -, and the half-shaft arc surface - is limited against the linkage limit part at the lower end of the latch -, and the central axis of the latch transmission component stops rotating, thereby realizing the stable connection between the stop limit surface - and the roller.

[0012] In some embodiments, the first end of the transmission plate is connected to the energy storage sleeve through a connecting piece, and a return spring is sleeved on the transmission plate, the first end of the return spring is connected to a first return spring limiting device, and the second end of the return spring is connected to a second return spring limiting device, wherein the first end of the return spring is fixed to the transmission plate through the first return spring limiting device, and the second return spring limiting device is movably sleeved on the transmission plate and can move back and forth relative to the transmission plate along the elastic direction of the return spring, driving the release plate to move and thereby driving the release half-shaft to rotate, and directing the arc surface of the half-shaft toward the linkage limiting part at the lower end of the latch.

[0013] Furthermore, the transmission plate is provided with a sliding groove for sliding connection of the end of the trip plate, and the sliding groove is arranged along the elastic expansion and contraction direction of the return spring; and the second return spring limiting device is against the end of the trip plate, and the elastic compression force of the return spring drives the end of the trip plate to move along the direction of the sliding groove.

[0014] In some embodiments, the mounting plate includes a front plate and a rear plate arranged parallel to each other, wherein the latch transmission component, transmission crank arm, primary gear, secondary gear, and the central shaft of the release half shaft are all installed on the front plate and the rear plate.

[0015] In some embodiments, the mechanism fixing shaft is fixed to the front clamp plate and / or the rear clamp plate.

[0016] In some embodiments, the front clamping plate and the rear clamping plate are also provided with mounting positioning plates for mounting the manual closing operating mechanism on the permanent magnetic switch housing through the mounting positioning plates.

[0017] In some embodiments, the gear transmission chain includes a primary gear and a secondary gear meshing with each other; the cam is relatively fixedly coaxially mounted on the secondary gear;

[0018] The second end of the energy storage sleeve is drivingly connected to the rotating shaft of the first-stage gear, and the second end of the energy storage spring is connected to the rotating shaft of the second-stage gear through a hanging plate and an eccentric connecting piece; the eccentric connecting piece is relatively fixedly connected to the rotating shaft, and the second end of the energy storage spring is installed on the eccentric connecting piece through the mounting hole of the hanging plate. As the second-stage gear rotates, the displacement of the second end of the energy storage spring is stretched to store energy.

[0019] Furthermore, the outer diameter of the primary gear is smaller than the outer diameter of the secondary gear.

[0020] In some embodiments, a latch return spring is disposed on the central rotating shaft of the latch and the latch transmission component.

[0021] In a second aspect, a permanent magnet switch is provided, comprising the manual closing operating mechanism of the permanent magnet switch described in the first aspect.

[0022] Beneficial effects: The manual closing operating mechanism of the permanent magnetic switch provided by the present invention has the following advantages:

[0023] (1) The manual closing operating mechanism of a permanent magnetic switch provided by the present invention adopts a spring energy storage form to replace direct human power operation to close the switch, which is safe and labor-saving;

[0024] (2) The present invention provides a manual closing operating mechanism for a permanent magnetic switch, which has an operational interlock added to its structure to ensure that the permanent magnetic switch will not be opened due to excessive closing bounce, thereby achieving manual and reliable closing of the permanent magnetic switch. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a three-dimensional structural diagram of the manual closing operating mechanism in the free state according to an embodiment of the present invention.

[0026] Figure 2 It is a three-dimensional structural diagram of the manual closing operating mechanism at the closing moment of the embodiment of the present invention.

[0027] Figure 3 It is an energy storage transmission component of a manual closing operating mechanism in an embodiment of the present invention.

[0028] Figure 4 It is a latch transmission component of a manual closing operating mechanism in an embodiment of the present invention.

[0029] Figure 5It is a three-dimensional structural diagram of the main transmission parts when the manual closing operating mechanism of the embodiment of the present invention is in a free state.

[0030] Figure 6 It is a three-dimensional structural diagram of the main transmission parts of the manual closing operating mechanism at the closing moment of the embodiment of the present invention.

[0031] In the figure: front splint 1, rear splint 2, energy storage transmission component 3, latch transmission component 4, operation interlocking component 5;

[0032] Energy storage transmission component 3: energy storage sleeve 6, gear transmission chain 7, cam 8, energy storage spring 9, transmission crank arm 10; primary gear 11, secondary gear 12, hanging plate 13, mechanism fixed shaft 14, roller 15, permanent magnetic switch connecting part 16, roller 17;

[0033] The latch transmission component 4 includes a latch 18, a stopper 19, a stopper reset spring 20, a latch reset spring 21, and a pin 22; a stopper limit surface 19-1, a stopper rolling surface 19-2, and a latch lower end linkage limit portion 18-1;

[0034] Operation interlocking assembly 5: transmission plate 23, return spring 24, release plate 25, release half shaft 26; half shaft notch 26-1, half shaft arc surface 26-2. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to those of ordinary skill in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may also include different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so that once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0037] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application 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 cannot be understood as a limitation on the present application. In addition, the terms "first", "second", etc. are used only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, "multiple" means two or more.

[0038] In the description of this application, it should be noted that, unless otherwise clearly specified 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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood by specific circumstances.

[0039] Example 1

[0040] A manual closing operating mechanism for a permanent magnetic switch, comprising a mounting plate, an energy storage transmission component 3, a latch transmission component 4, and an operation interlocking component 5;

[0041] The energy storage transmission component 3 includes an energy storage sleeve 6, a gear transmission chain 7, a cam 8, an energy storage spring 9, and a transmission crank arm 10; the first end of the energy storage spring 9 is connected to the mechanism fixed shaft 14; the second end of the energy storage spring 9 is connected and installed on the gear transmission chain 7; the cam 8 is installed on the gear transmission chain 7; the first end of the energy storage sleeve 6 is used to be connected to the external force operating member to provide torque, and the second end of the energy storage sleeve 6 is drivingly connected to the gear transmission chain 7; the transmission crank arm 10 includes a roller 15 arranged at the first end, a roller 17 arranged at the second end, and a permanent magnetic switch connecting part 16 arranged at the upper end; the roller 15, the roller 17, and the permanent magnetic switch connecting part 16 all rotate synchronously with the central rotating shaft of the transmission crank arm 10;

[0042] The latch transmission component 4 includes a latch 18, a stopper 19, a stopper reset spring 20, and a latch reset spring 21; the stopper 19 is mounted on the latch 18 through a pin shaft 22, a stopper limit surface 19-1 and a stopper rolling surface 19-2 are provided on the stopper 19, and a latch lower end linkage limit portion 18-1 is provided at the lower end of the latch 18; the stopper reset spring 20 is provided on the stopper 19 and the pin shaft 22;

[0043] The operation interlocking assembly 5 includes a transmission plate 23, a reset spring 24, a release plate 25, and a release half-shaft 26; the release half-shaft 26 is located on the side of the latch transmission component 4 away from the transmission crank arm 10, and is driven to rotate by the energy storage sleeve 6 through the transmission plate 23, the reset spring 24, and the release plate 25, wherein the release half-shaft 26 and the lower end linkage limit portion 18-1 of the latch are provided with a half-shaft notch 26-1 and a half-shaft arc surface 26-2 at the corresponding position; the half-shaft notch 26-1 is used to give a clearance space to the lower end linkage limit portion 18-1 of the latch during the electric process;

[0044] During the manual closing operation, the energy storage sleeve 6 is connected to input torque drive to provide energy storage power for the energy storage spring 9. After the energy storage spring 9 is stretched to the middle position and the energy storage is completed, the energy is released instantly, driving the cam 8 installed on the gear transmission chain 7 to rotate rapidly. During the rotation of the cam 8, the impact roller 15 drives the central axis of the transmission crank arm 10 to rotate, and the permanent magnetic switch connection part 16 rotates to drive the permanent magnetic switch to close the switch. At the same time, the roller 17 slides downward along the stopper rolling surface 19-2 to the bottom of the stopper 19. Under the action of the stopper reset spring 20, the stopper 19 quickly returns to the original position and the stopper limit surface 19-1 catches the returning roller 17, thereby fixing the transmission crank arm 10;

[0045] At the same time, the energy storage sleeve 6 drives the release half-shaft 26 to rotate until the half-shaft arc surface 26-2 faces the linkage limit part 18-1 at the lower end of the latch, and the half-shaft arc surface 26-2 is limited against the linkage limit part 18-1 at the lower end of the latch, and the central axis of the latch transmission component 4 stops rotating, thereby realizing the stable connection between the stop limit surface 19-1 and the roller 17, and preventing the stop limit surface 19-1 and the roller 17 from falling off.

[0046] In some embodiments, Figure 5 , Figure 6As shown, the first end of the transmission plate 23 is connected to the energy storage sleeve 6 through a connecting piece, and a return spring 24 is sleeved on the transmission plate 23, and the first end of the return spring 24 is connected to a first return spring limiting device, and the second end of the return spring 24 is connected to a second return spring limiting device, wherein the first end of the return spring 24 is fixed to the transmission plate 23 through the first return spring limiting device, and the second return spring limiting device is movably sleeved on the transmission plate 23, and can move back and forth relative to the transmission plate 23 along the elastic direction of the return spring 24, drive the release plate 25 to move, thereby driving the release half-shaft 26 to rotate, and the half-shaft arc surface 26-2 is directed toward the lower end of the latch to link the limit portion 18-1.

[0047] Furthermore, in some specific embodiments, Figure 5 , Figure 6 As shown, the transmission plate 23 is provided with a slide groove for sliding connection of the end of the release plate 25, and the slide groove is arranged along the elastic expansion and contraction direction of the return spring 24; and the second return spring limit device is against the end of the release plate 25, and the elastic compression force of the return spring drives the end of the release plate 25 to move along the direction of the slide groove.

[0048] In some embodiments, Figure 1 , Figure 2 As shown, the mounting plate includes a front plate 1 and a rear plate 2 arranged in parallel with each other, wherein the central rotating shafts of the latch transmission component 4, the transmission crank arm 10, the primary gear 11, the secondary gear 12, and the tripping half shaft 26 are all mounted on the front plate 1 and the rear plate 2. The mechanism fixing shaft 14 is fixed on the front plate 1 and / or the rear plate 2.

[0049] Furthermore, in some specific embodiments, Figure 1 , Figure 2 As shown, the front clamping plate 1 and the rear clamping plate 2 are also provided with mounting positioning plates 1-1 and 2-1, which are used to mount the manual closing operating mechanism on the permanent magnetic switch housing through the mounting positioning plates.

[0050] In some embodiments, Figure 3 As shown, the gear transmission chain 7 includes a primary gear 11 and a secondary gear 12 meshing with each other; the cam 8 is relatively fixedly coaxially mounted on the secondary gear 12;

[0051] The second end of the energy storage sleeve 6 is drivingly connected to the rotating shaft of the first-stage gear 11, and the second end of the energy storage spring 9 is connected to the rotating shaft of the second-stage gear 12 through the eccentric connecting piece of the hanging plate 13; the eccentric connecting piece is relatively fixedly connected to the rotating shaft, and the second end of the energy storage spring 9 is installed on the eccentric connecting piece through the mounting hole of the hanging plate 13. As the second-stage gear 12 rotates, the displacement of the second end of the energy storage spring 9 is stretched to store energy.

[0052] Furthermore, in some specific embodiments, Figure 3As shown, the outer diameter of the first-stage gear 11 is smaller than the outer diameter of the second-stage gear 12 .

[0053] In some embodiments, Figure 4 As shown, a latch return spring 21 is provided on the central rotating shaft of the latch 18 and the latch transmission component 4 for returning the latch 18 to a free state.

[0054] In some embodiments, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, a manual closing operating mechanism of a permanent magnetic switch comprises: a front clamping plate 1, a rear clamping plate 2, an energy storage transmission component 3, a latch transmission component 4, and an operation interlocking component 5;

[0055] The energy storage transmission component 3 includes an energy storage sleeve 6, a gear transmission chain 7, a cam 8, an energy storage spring 9, a transmission crank arm 10; a primary gear 11, a secondary gear 12, a hanging plate 13, a mechanism fixed shaft 14, a roller 15, a permanent magnetic switch connecting part 16, and a roller 17;

[0056] The latch transmission component 4 includes a latch 18, a stopper 19, a stopper return spring 20, a latch return spring 21, and a pin 22;

[0057] The operation interlocking assembly 5 comprises a transmission plate 23, a return spring 24, a release plate 25, a release half-shaft 26, a half-shaft notch 26-1, and a half-shaft arc surface 26-2.

[0058] In some embodiments, the height of the front clamping plate 1 and the rear clamping plate 2 can be adjusted according to the actual height of the permanent magnetic switch, and a mounting positioning plate is provided on the side of the clamping plate, and the mechanism is fixed to the switch housing through the positioning plate.

[0059] like Figure 3 , Figure 5 , Figure 6 As shown, the energy storage transmission component 3 includes an energy storage sleeve 6, a gear transmission chain 7, a cam 8, an energy storage spring 9, and a transmission crank arm 10;

[0060] The gear transmission chain 7 includes a primary gear 11 and a secondary gear 12 that are meshed with each other; the cam 8 is relatively fixedly coaxially mounted on the secondary gear 12;

[0061] The second end of the energy storage sleeve 6 is drivingly connected to the rotating shaft of the first-stage gear 11, and the second end of the energy storage spring 9 is connected to the rotating shaft of the second-stage gear 12 through the hanging plate 13 and the eccentric connecting piece; the eccentric connecting piece is relatively fixedly connected to the rotating shaft, and the second end of the energy storage spring 9 is installed on the eccentric connecting piece through the mounting hole of the hanging plate 13. As the second-stage gear 12 rotates, the displacement of the second end of the energy storage spring 9 is stretched to store energy.

[0062] The first end of the energy storage sleeve 6 is used to be connected to the external force operating shaft to provide torque, and the second end of the energy storage sleeve 6 is fixed on the gear transmission chain 7. The gear transmission chain 7 transmits the external force energy to the energy storage spring 9 through the transmission of the first gear 11 and the second gear 12. The first end of the energy storage spring 9 is fixed to the mechanism fixed shaft 14 through a fastener, and the second end of the energy storage spring 9 is fixed to the gear transmission chain 7 through a hanging plate 13. The energy storage spring 9 gradually stretches to the middle position and releases energy instantly after the energy storage is completed, driving the cam 8 installed on the gear transmission chain 7 to rotate rapidly. The cam 8 hits the roller 15 at the first end of the transmission crank arm 10 to drive the transmission crank arm 10 to rotate. The permanent magnetic switch connection part 16 of the transmission crank arm 10 is used to connect through the transmission pin and drive the permanent magnetic switch to close the switch.

[0063] like Figure 3 , Figure 4 , Figure 6 As shown, the latch transmission component 4 includes a latch 18, a stopper 19, a stopper reset spring 20, and a latch reset spring 21; the stopper 19 is connected to the latch 18 through a pin shaft 22, and a stopper reset spring 20 is provided on the stopper 19. During the closing process, the roller 17 installed at the second end of the transmission crank arm 10 runs along the stopper rolling surface 19-2 to the bottom of the stopper 19. Under the action of the stopper reset spring 20, the stopper 19 quickly returns to its original position and catches the returning roller 17 on the stopper limit surface 19-1.

[0064] like Figure 5 As shown, the operation interlocking assembly 5 includes a transmission plate 23, a reset spring 24, a release plate 25, and a release semi-shaft 26. The release semi-shaft 26 is provided with a semi-shaft notch 26-1 and a semi-shaft arc surface 26-2; wherein the first end of the reset spring 24 is fixed to the transmission plate 23 through a first reset spring limiting device, and the second end of the reset spring 24 is movably sleeved on the transmission plate 23 through a second reset spring limiting device, and the second reset spring limiting device is drivingly connected to the release plate 25, driving the release semi-shaft 26 connected to the release plate 25 to reciprocate along the central rotating shaft, in order to make the semi-shaft arc surface 26-2 face the linkage limiting portion 18-1 at the lower end of the latch during the movement, so as to prevent the closing impact bounce from being too large to cause the opening of the switch.

[0065] The closing process is as follows Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown,

[0066] Figure 5 This is a three-dimensional structural diagram of the main transmission parts of the manual closing operating mechanism of the present invention when it is in a free state. Figure 5As shown, in the free state, the release half-shaft notch 26-1 cooperates with the latch 18. During the electric process, the permanent magnetic core is powered to close the permanent magnetic switch, driving the transmission crank arm 10 rotatably connected to it through the permanent magnetic switch connection part 16 to rotate. During the process of the roller 17 installed at the second end of the transmission crank arm hitting the stopper 19, the latch 18 is driven to rotate, and the linkage limit part 18-1 at the lower end of the latch can enter the half-shaft notch 26-1. The half-shaft notch 26-1 provides a clearance space for the linkage limit part 18-1 at the lower end of the latch to prevent the release half-shaft 26 from hindering the movement of the stopper 19 and the latch 18.

[0067] Figure 6 It is a three-dimensional structural diagram of the main transmission parts of the manual closing operating mechanism of the present invention at the closing moment.

[0068] like Figure 5 , Figure 6 As shown, during the manual repeated energy storage process, the energy storage sleeve 6 drives the transmission plate 23 to reciprocate, and the reset spring 24 sleeved on the transmission plate 23 will be repeatedly compressed, pushing the release plate 25 and the release half shaft 26 to reciprocate. At the same time, the gear transmission chain 7 transmits the external force energy to the energy storage spring 9 through the transmission of the first gear 11 and the second gear 12. The energy storage spring 9 gradually stretches to the middle position and releases energy instantly after the energy storage is completed, driving the cam 8 installed on the gear transmission chain 7 to rotate rapidly. The cam 8 hits the roller 15 installed at the first end of the transmission crank arm 10 to drive the transmission crank arm 10 to rotate. The permanent magnetic switch connecting part 16 of the transmission crank arm 10 can drive the permanent magnetic switch to close the switch by connecting the transmission pin. At the same time, the roller 17 installed at the second end of the transmission crank arm runs to the bottom of the stopper 19. Under the action of the stopper reset spring 20, the stopper 19 quickly returns to the original position and catches the returning roller 17 on the stopper limit surface 19-1. At this time, the latch 18 will be buckled on the semi-shaft arc surface 26-2, and the closing moment is as shown in FIG. Figure 6 As shown, it effectively prevents the closing impact bounce from being too large to cause the opening of the switch, and finally ensures that the permanent magnetic switch is in the closing state under the suction of the permanent magnet block. After the closing is completed, the energy storage sleeve 6 returns to the free position, the half-shaft notch 26-1 cooperates with the latch 18, and the next opening operation can be carried out.

[0069] By adopting the above structure, the energy storage is transmitted through the energy storage transmission component. After the spring passes the center, the spring energy is released and the transmission crank arm is driven to move, thereby functionally realizing the closing of the permanent magnetic switch. In terms of structure, an operation interlock is added to ensure that the permanent magnetic switch will not be opened due to excessive closing bounce, thereby realizing manual and reliable closing of the permanent magnetic switch.

[0070] Example 2

[0071] A permanent magnet switch includes the manual closing operating mechanism of the permanent magnet switch described in Example 1, wherein the permanent magnet switch connecting portion 16 at the upper end of the transmission crank arm 10 is connected to the permanent magnet switch through a connecting piece.

[0072] In some embodiments, the permanent magnetic switch connection portion 16 drives the permanent magnetic switch to close by connecting the transmission pin.

[0073] In some embodiments, the front clamping plate 1 and the rear clamping plate 2 install the manual closing operating mechanism on the permanent magnetic switch housing by installing a positioning plate, and the manual closing operating mechanism is installed on the permanent magnetic switch.

[0074] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A manual closing operating mechanism for a permanent magnetic switch, characterized in that: It includes a mounting plate, an energy storage transmission component (3), a latch transmission component (4), and an operation interlocking component (5); The energy storage transmission component (3) comprises an energy storage sleeve (6), a gear transmission chain (7), a cam (8), an energy storage spring (9), and a transmission crank arm (10); the first end of the energy storage spring (9) is connected to the mechanism fixed shaft (14); the second end of the energy storage spring (9) is connected and mounted on the gear transmission chain (7); the cam (8) is mounted on the gear transmission chain (7); the first end of the energy storage sleeve (6) is used to be connected to an external force operating member to provide torque, and the second end of the energy storage sleeve (6) is drivingly connected to the gear transmission chain (7); the transmission crank arm (10) comprises a roller (15) arranged at the first end, a roller (17) arranged at the second end, and a permanent magnetic switch connecting part (16) arranged at the upper end; the roller (15), the roller (17), and the permanent magnetic switch connecting part (16) all rotate synchronously with the central rotating shaft of the transmission crank arm (10); The detent transmission component (4) comprises a detent (18), a stopper (19), a stopper reset spring (20), and a detent reset spring (21); the stopper (19) is mounted on the detent (18) via a pin shaft (22); a stopper limit surface (19-1) and a stopper rolling surface (19-2) are provided on the detent (19); a detent lower end linkage limit portion (18-1) is provided at the lower end of the detent (18); and a detent reset spring (20) is provided on the detent (19) and the pin shaft (22); The operation interlocking assembly (5) comprises a transmission plate (23), a return spring (24), a release plate (25), and a release half-shaft (26); the release half-shaft (26) is located on a side of the latch transmission component (4) away from the transmission crank arm (10), and is driven to rotate by the energy storage sleeve (6) through the transmission plate (23), the return spring (24), and the release plate (25), wherein the release half-shaft (26) and the linkage limit portion (18-1) at the lower end of the latch are provided with a half-shaft notch (26-1) and a half-shaft arc surface (26-2) at positions corresponding to the linkage limit portion (18-1) at the lower end of the latch; the half-shaft notch (26-1) is used to provide a clearance space for the linkage limit portion (18-1) at the lower end of the latch during the electric operation; During the manual closing operation, the energy storage sleeve (6) is connected to the input torque drive to provide energy storage power for the energy storage spring (9). After the energy storage spring (9) is stretched to the middle position and the energy storage is completed, the energy is released instantly, driving the cam (8) installed on the gear transmission chain (7) to rotate rapidly. During the rotation of the cam (8), the impact roller (15) drives the central axis of the transmission crank arm (10) to rotate. The permanent magnetic switch connecting part (16) rotates to drive the permanent magnetic switch to close the switch. At the same time, the roller (17) slides downward along the stopper rolling surface (19-2) to the bottom of the stopper (19). Under the action of the stopper reset spring (20), the stopper (19) quickly returns to the original position and the stopper limit surface (19-1) catches the returning roller (17), thereby fixing the transmission crank arm (10); At the same time, the energy storage sleeve (6) drives the release half shaft (26) to rotate until the half shaft arc surface (26-2) faces the linkage limit portion (18-1) at the lower end of the latch, and the half shaft arc surface (26-2) is limited against the linkage limit portion (18-1) at the lower end of the latch, and the central axis of the latch transmission component (4) stops rotating, thereby achieving a stable buckling connection between the stop limit surface (19-1) and the roller (17); The first end of the transmission plate (23) is connected to the energy storage sleeve (6) via a connecting piece, a return spring (24) is sleeved on the transmission plate (23), the first end of the return spring (24) is connected to a first return spring limiting device, and the second end of the return spring (24) is connected to a second return spring limiting device, wherein the first end of the return spring (24) is fixed to the transmission plate (23) via the first return spring limiting device, and the second return spring limiting device is movably sleeved on the transmission plate (23) and can move relative to the transmission plate (23) along the return spring (24). The trip plate (25) is moved back and forth in the elastic direction, thereby driving the trip plate (25) to move and thereby driving the trip half shaft (26) to rotate, and the half shaft arc surface (26-2) is directed toward the linkage limit portion (18-1) at the lower end of the latch; a slide groove for sliding connection of the end of the trip plate (25) is provided on the transmission plate (23), and the slide groove is arranged along the elastic expansion and contraction direction of the return spring (24); and the second return spring limit device is abutted against the end of the trip plate (25), and the end of the trip plate (25) is driven to move along the slide groove direction by the elastic compression force of the return spring; The gear transmission chain (7) comprises a first gear (11) and a second gear (12) which are meshed with each other; the cam (8) is relatively fixedly coaxially mounted on the second gear (12); the second end of the energy storage sleeve (6) is drivingly connected to the rotating shaft of the first gear (11); the second end of the energy storage spring (9) is connected to the rotating shaft of the second gear (12) via a hanging plate (13) and an eccentric connecting member; the eccentric connecting member is relatively fixedly connected to the rotating shaft; the second end of the energy storage spring (9) is mounted on the eccentric connecting member via a mounting hole of the hanging plate (13); as the second gear (12) rotates, the displacement of the second end of the energy storage spring (9) is stretched to store energy; and a latch return spring (21) is arranged on the central rotating shaft of the latch (18) and the latch transmission component (4).

2. The manual closing operating mechanism of the permanent magnetic switch according to claim 1, characterized in that: The mounting plate comprises a front clamping plate (1) and a rear clamping plate (2) which are arranged parallel to each other, wherein the central rotating shafts of the latch transmission component (4), the transmission crank arm (10), the first gear (11), the second gear (12), and the release half shaft (26) are all mounted on the front clamping plate (1) and the rear clamping plate (2).

3. The manual closing operating mechanism of the permanent magnetic switch according to claim 2 is characterized in that: The mechanism fixing shaft (14) is fixed on the front clamping plate (1) and / or the rear clamping plate (2).

4. The manual closing operating mechanism of the permanent magnetic switch according to claim 2, characterized in that: The front clamping plate (1) and the rear clamping plate (2) are also provided with mounting positioning plates, which are used to mount the manual closing operating mechanism on the permanent magnetic switch housing via the mounting positioning plates.

5. The manual closing operating mechanism of the permanent magnetic switch according to claim 1, characterized in that: The outer diameter of the first-stage gear (11) is smaller than the outer diameter of the second-stage gear (12).

6. A permanent magnet switch, characterized in that: A manual closing operating mechanism for a permanent magnetic switch comprising any one of claims 1 to 5.

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