Operating mechanism of a rotary switch

Abstract

The present invention discloses an operating mechanism of a rotary switch, comprising a movable seat, a driving wheel, an energy storage structure, a limiting structure and an unlocking structure installed in an installation cavity. When the movable seat moves downward along the axial direction of the installation cavity, it forms a limiting cooperation with the middle seat of the rotary switch through the limiting structure. At this time, the rotation of the driving wheel will squeeze the energy storage structure to store energy. After the driving wheel rotates a certain distance, the unlocking structure drives the movable seat to move upward along the axial direction of the installation cavity, so that the movable seat and the middle seat are released from the limiting cooperation. The energy storage structure releases the stored energy to drive the movable seat to rotate horizontally, and drives the contact structure of the rotary switch to perform an opening or closing action, thereby realizing the opening and closing of the switch. The advantage of such a design is that it can replace the original locking method of the pawl and the protruding arm without adding other parts. The structural arrangement is compact. At the same time, the overall structural strength of the movable seat is high, and there will be no extrusion deformation or breakage problems during long-term use. It has a long service life, low production cost, and is convenient and quick to install.

Description

Technical Field

[0001] The present invention relates to the technical field of rotary switches, and in particular to an operating mechanism of a rotary switch. Background Art

[0002] With the rapid development of the photovoltaic industry, the safety of photovoltaic systems has gradually attracted widespread attention and has become a hot topic within the industry in recent years. Photovoltaic isolating switches are used in inverters to control the operating status of multiple core components. The reliability of photovoltaic isolating switches is not only crucial to the smooth operation of the entire photovoltaic system, but also to the stable development of the photovoltaic industry.

[0003] Chinese patent document CN110911186A discloses an improved rotary switch operating mechanism, which includes an upper cover, a mounting base, a lever, an energy storage element and a drive wheel. The drive wheel is mounted in a drive wheel mounting groove of the mounting base and can rotate in the drive wheel mounting groove. The energy storage element is mounted in a groove in the inner cavity of the drive wheel. The end of the energy storage element is mounted on a block in the groove. The upper end surface of the drive wheel is provided with an open groove. The outer surface of the drive wheel corresponding to the two sides of the open groove is provided with a notch long slot. The pawl is arranged at the notch of the open groove. The pawl can be blocked by a locking protrusion extending from the inner surface of the upper cover during the rotation of the drive wheel. The lever includes a lever handle and a lever plate. A driving finger extends from the lower surface of the lever plate and is inserted into the groove in the inner cavity of the drive wheel. The outer edge surface of the lever plate is provided with a protruding arm. The lever handle extends through the through hole of the upper cover. During the rotation of the lever, the protruding arm can press the pawl to retract toward the notch long slot.

[0004] However, this rotary switch operating mechanism has the following problems in actual use:

[0005] 1. The pawl is usually made of elastic plastic, and only one end of it is fixed to the drive wheel. When the switch is opened or closed, the pawl is pressed by the convex arm on the lever plate and deformed and displaced, thereby releasing the engagement with the locking protrusion. The energy storage element will release the stored energy to drive the drive wheel to rotate, thereby driving the switch to open or close. However, the pawl is prone to permanent deformation or breakage during long-term pressing, resulting in the pawl and locking protrusion not being able to engage normally, so that the energy storage element cannot store energy normally. Summary of the Invention

[0006] Therefore, the technical problem to be solved by the present invention is to overcome the problem in the prior art that the pawl provided in the rotary switch operating mechanism is prone to permanent deformation or breakage after long-term pressing, resulting in the energy storage element being unable to store energy normally, thereby providing an operating mechanism for a rotary switch with a simple structure, a long service life, and a reliable energy storage structure.

[0007] The present invention provides an operating mechanism of a rotary switch, which is installed between an upper cover and a middle base of the rotary switch and comprises:

[0008] A mounting cavity formed between the upper cover and the middle seat;

[0009] A movable seat, movably arranged in the mounting cavity, for driving the contact structure to perform opening or closing actions;

[0010] A driving wheel rotatably connected between the upper cover and the movable seat;

[0011] An energy storage structure connecting the driving wheel and the movable seat along the axial direction of the mounting cavity;

[0012] A limiting structure is provided between the movable seat and the middle seat to keep the relative positions of the two locked, and when the movable seat moves downward along the axial direction of the installation cavity, the limiting structure forms a limiting fit with the middle seat;

[0013] An unlocking structure is provided between the driving wheel and the movable seat. When the driving wheel rotates, the unlocking structure drives the movable seat to move upward along the axial direction of the mounting cavity, so that the movable seat and the middle seat are released from the limited engagement.

[0014] In the operating mechanism of the above-mentioned rotary switch, the unlocking structure includes at least one unlocking boss arranged on the outer peripheral side wall of the driving wheel, and at least one unlocking slider arranged on the inner wall of the movable seat according to the movement trajectory of the unlocking boss. Arc-shaped driving inclined surfaces are extended on both sides of the unlocking boss. The driving inclined surfaces are slidably connected to the unlocking slider during the rotation of the driving wheel, so that when the unlocking slider slides and climbs along the driving inclined surfaces, it drives the movable seat to move upward along the axial direction of the mounting cavity.

[0015] In the operating mechanism of the above-mentioned rotary switch, the outer contour of the unlocking boss is T-shaped, with two arc-shaped protrusions formed on both sides thereof, and the two arc-shaped protrusions are respectively provided with the driving inclined surfaces; the unlocking slider is provided with a guide inclined surface that slides in cooperation with the driving inclined surface.

[0016] In the operating mechanism of the above-mentioned rotary switch, the limiting structure includes at least one limiting block provided on one of the middle seat and the movable seat, and at least one limiting groove group correspondingly provided on the other of the middle seat and the movable seat. The middle seat and the movable seat are engaged with the limiting groove group through the limiting block to form a limiting fit. The limiting groove group includes closing limiting grooves and opening limiting grooves arranged at equal intervals along the circumferential direction.

[0017] In the operating mechanism of the above-mentioned rotary switch, the energy storage structure includes:

[0018] a first arc-shaped block, disposed on the driving wheel, wherein one end of the first arc-shaped block has a first protrusion extending downwardly along the axial direction of the mounting cavity;

[0019] A second arc-shaped block is formed on the movable seat and is arranged concentrically with the first arc-shaped block, one end of the second arc-shaped block is provided with a second protrusion extending upward along the axial direction of the installation cavity, and the second protrusion is arranged vertically staggered with the first protrusion;

[0020] The energy storage spring is squeezed and abutted between the driving wheel and the movable seat, and has a first pressure-bearing end and a second pressure-bearing end that are bent toward each other and arranged at an angle. The first pressure-bearing end is hooked against the first protrusion and one end of the second arc-shaped block, and the second pressure-bearing end is hooked against the second protrusion and one end of the first arc-shaped block.

[0021] In the operating mechanism of the above-mentioned rotary switch, an anti-separation structure is provided between the first arc-shaped block and the second arc-shaped block. The anti-separation structure includes a first limiting boss provided on the first protrusion or the first arc-shaped block, and a second limiting boss provided on the second protrusion or the second arc-shaped block corresponding to the first limiting boss. The first limiting boss and the second limiting boss remain hooked and connected under the elastic force of the energy storage spring.

[0022] In the operating mechanism of the above-mentioned rotary switch, a guide structure is further provided between the driving wheel and the movable seat, the guide structure comprising a guide protrusion passing through the axis of the movable seat, a guide hole extending through the guide protrusion, and a guide rod protruding from the axis of the driving wheel and passing through the guide hole to abut against the contact structure.

[0023] In the operating mechanism of the above-mentioned rotary switch, a first positioning structure for limiting the rotation range of the movable seat is further provided between the middle seat and the movable seat. The first positioning structure includes at least one first positioning protrusion provided on one of the middle seat and the movable seat, and at least one first positioning groove provided on the other of the middle seat and the movable seat corresponding to the first positioning protrusion. The first positioning protrusion is slidably provided in the first positioning groove, and the height of the first positioning protrusion is higher than the height of the limit block.

[0024] In the operating mechanism of the above-mentioned rotary switch, the driving wheel includes an operating rod passing through the upper cover and a turntable rotatably connected to the upper cover, and an operating handle is fixed to one end of the operating rod extending outside the upper cover by a bolt.

[0025] In the operating mechanism of the above-mentioned rotary switch, the upper cover is provided with an accommodating groove for accommodating the turntable, and a second positioning structure for limiting the rotation range of the driving wheel is also provided between the upper cover and the turntable. The second positioning structure includes at least one second positioning protrusion provided on one of the upper cover and the turntable, and at least one second positioning groove provided on the other of the upper cover and the turntable corresponding to the second positioning protrusion, and the second positioning protrusion is slidably provided in the second positioning groove.

[0026] The technical solution of the present invention has the following advantages over the prior art:

[0027] 1. The operating mechanism of the rotary switch provided by the present invention has a movable seat that can move up and down along the axial direction of the mounting cavity. When moving downward, the movable seat forms a limited engagement with the middle seat via a limiting structure, so that the movable seat remains locked in a relative position within the mounting cavity. At this time, when the operating drive wheel rotates, the drive wheel squeezes the energy storage structure to store energy. When the drive wheel rotates a certain distance, the unlocking structure drives the movable seat to move upward along the axial direction of the mounting cavity, so that the movable seat and the middle seat are released from the limited engagement. At this time, the energy storage structure releases the stored energy to drive the movable seat to rotate. When the movable seat rotates, the contact structure of the rotary switch performs an opening or closing action, thereby achieving the opening and closing of the rotary switch. The advantage of this design is that the axial movement of the movable seat within the mounting cavity is used to achieve the locking and unlocking functions, without the need for additional parts, and it can replace the original locking method of the pawl and the protruding arm. The structure is compact, and the overall structural strength of the movable seat is high, so it will not suffer from extrusion deformation or breakage during long-term use. It has a long service life, low production cost, and is easy and quick to install.

[0028] 2. The operating mechanism of the rotary switch provided by the present invention has an unlocking boss provided on the driving wheel and an unlocking slider provided on the movable seat. The unlocking slider is provided with an arc-shaped protrusion. During the rotation of the driving wheel, the arc-shaped protrusion will be inserted into the bottom of the unlocking slider as the driving wheel rotates, so that the unlocking slider is slidably connected with the arc-shaped protrusion. At this time, when the driving wheel continues to rotate, the unlocking slider will slide and climb along the driving inclined surface on the arc-shaped protrusion, thereby driving the movable seat to move upward. The structure is simple and the operation is convenient.

[0029] 3. The operating mechanism of the rotary switch provided by the present invention realizes the limiting coordination of the movable seat and the middle seat through the mutual engagement of the limit block and the limit groove group. The setting distance of each group of closing limit grooves and opening limit grooves is the same, ensuring that multiple limit blocks can be simultaneously inserted into multiple groups of closing limit grooves or opening limit grooves when the driving wheel rotates.

[0030] 4. In the operating mechanism of the rotary switch provided by the present invention, the energy storage spring has the functions of a compression spring and a torsion spring. When the operating mechanism is installed in the rotary switch, the energy storage spring is squeezed by the driving wheel and the movable seat to generate an elastic force. The elastic force causes the driving wheel to be tightly attached to the upper cover and the movable seat to be in abutment with the middle seat. The fitting surfaces of the driving wheel and the upper cover and the movable seat and the middle seat are smoothed to ensure that the elastic force does not affect the rotation of the driving wheel and the movable seat in the installation cavity.

[0031] 5. In the operating mechanism of the rotary switch provided by the present invention, the two ends of the energy storage spring respectively abut the drive wheel and the movable seat, ensuring that the energy storage spring can reliably store energy when the drive wheel rotates. When the energy storage spring releases the stored energy, it drives the movable seat and the drive wheel to maintain the same rotation amplitude. After the energy storage spring completes releasing the stored energy, when the drive wheel rotates to a specific position, the elastic force applied by the energy storage spring pushes the movable seat to move downward along the axis of the installation cavity, forming a limit fit with the middle seat.

[0032] 6. The operating mechanism of the rotary switch provided by the present invention prevents the driving wheel and the movable seat from being repelled and separated from each other by the action of the energy storage spring during installation by providing a snap-fitting fit between the first limiting boss and the second limiting boss. Thus, the driving wheel and the movable seat are pre-assembled into one body and then simultaneously installed into the installation cavity, thereby realizing modular and integrated installation, and the installation is convenient and quick, thereby improving the assembly speed of workers.

[0033] 7. The operating mechanism of the rotary switch provided by the present invention utilizes the plug-in fit of the guide rod and the guide hole to guide the installation of the driving wheel, thereby preventing the driving wheel from being skewed by the elastic force of the energy storage spring, thereby preventing the problem of difficult installation.

[0034] 8. In the operating mechanism of the rotary switch provided by the present invention, since the height of the first positioning protrusion is higher than the height of the limit block, when the driving wheel drives the movable seat to move upward, the limit block will first separate from the closing limit groove or the opening limit groove, releasing the limiting cooperation between the movable seat and the middle seat, and the first positioning protrusion and the first positioning groove will still maintain the slider connection state, so as to limit the rotation range of the movable seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific implementation methods or the description of the prior art. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0036] Figure 1 A schematic diagram of the structure of the rotary switch provided by the present invention in which the operating mechanism is installed behind the rotary switch;

[0037] Figure 2 for Figure 1 A cross-sectional view of the rotary switch shown;

[0038] Figure 3 for Figure 1 An exploded view of the rotary switch is shown;

[0039] Figure 4 for Figure 2 A schematic diagram of the back structure of the upper cover shown;

[0040] Figure 5 for Figure 2 The structural diagram of the middle seat shown;

[0041] Figure 6 A schematic structural diagram of the operating mechanism of the rotary switch provided by the present invention;

[0042] Figure 7 for Figure 6 A cross-sectional view of the operating mechanism of the rotary switch shown;

[0043] Figure 8 for Figure 7 The installation diagram of the driving wheel and energy storage spring shown;

[0044] Figure 9 for Figure 7 The schematic structural diagram of the driving wheel shown;

[0045] Figure 10 for Figure 7 The installation diagram of the movable seat and energy storage spring shown;

[0046] Figure 11 for Figure 7 The back structure diagram of the movable seat shown;

[0047] Figure 12 for Figure 7 A cross-sectional view of the movable seat shown;

[0048] Description of the accompanying drawings:

[0049] 1-upper cover; 11-middle seat; 12-installation cavity; 13-contact structure; 14-accommodation groove; 15-operating handle;

[0050] 2- movable seat; 21- guide protrusion; 22- guide hole;

[0051] 3- driving wheel; 31- guide rod; 32- operating rod; 33- turntable;

[0052] 4-energy storage structure; 41-first arc block; 42-first protrusion; 43-second arc block; 44-second protrusion; 45-energy storage spring; 46-first pressure end; 47-second pressure end; 48-first limiting boss; 49-second limiting boss;

[0053] 51-limit block; 52-closing limit slot; 53-opening limit slot;

[0054] 6-unlocking structure; 61-unlocking boss; 62-unlocking slider; 63-driving inclined surface; 64-arc-shaped protrusion; 65-guide inclined surface;

[0055] 71-first positioning protrusion; 72-first positioning groove;

[0056] 81 - second positioning protrusion; 82 - second positioning groove. DETAILED DESCRIPTION

[0057] The following will clearly and completely describe the technical solutions of the present invention with reference to the accompanying drawings. Obviously, the embodiments described are only a portion of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0058] In the description of the present invention, it should be noted that terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" indicate positions or locations based on those shown in the accompanying drawings. These terms are intended solely to facilitate and simplify the description of the present invention and are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific manner. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0059] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in the present invention based on the specific circumstances.

[0060] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0061] Example 1

[0062] The present embodiment will be described in detail below with reference to the accompanying drawings:

[0063] The present invention provides Figure 1-12 The operating mechanism of a rotary switch shown is installed between the upper cover 1 and the middle base 11 of the rotary switch, and includes:

[0064] The mounting cavity 12 is formed between the upper cover 1 and the middle seat 11;

[0065] The movable seat 2 is movably arranged in the mounting cavity 12 and is used to drive the contact structure 13 to perform opening or closing actions;

[0066] A driving wheel 3 is rotatably connected between the upper cover 1 and the movable seat 2;

[0067] An energy storage structure 4 connects the driving wheel 3 and the movable seat 2 along the axial direction of the mounting cavity 12;

[0068] A limiting structure is provided between the movable seat 2 and the middle seat 11 to keep the relative positions of the two locked, and when the movable seat 2 moves downward along the axial direction of the installation cavity 12, the limiting structure forms a limiting fit with the middle seat 11;

[0069] The unlocking structure 6 is arranged between the driving wheel 3 and the movable seat 2. When the driving wheel 3 rotates, the movable seat 2 is driven to move upward along the axial direction of the installation cavity 12 through the unlocking structure 6, so that the movable seat 2 and the middle seat 11 are released from the limited cooperation.

[0070] The above embodiment is the core technical solution of this embodiment. Since the movable seat 2 can move up and down along the axial direction of the installation cavity 12, and forms a limiting fit with the middle seat 11 through the limiting structure when moving down, the movable seat 2 is kept locked in the relative position in the installation cavity 12. At this time, when the driving wheel 3 is rotated, the driving wheel 3 squeezes the energy storage structure 4 to store energy, and when the driving wheel 3 rotates a certain distance, the unlocking structure 6 drives the movable seat 2 to move up along the axial direction of the installation cavity 12, so that the movable seat 2 and the middle seat 11 are released from the limiting fit. At this time, the energy storage structure 4 is pressed by the driving wheel 3 to store energy. The structure 4 releases the stored energy to drive the movable seat 2 to rotate. When the movable seat 2 rotates, it drives the contact structure 13 of the rotary switch to perform an opening or closing action, thereby realizing the opening and closing of the rotary switch. The advantage of this design is that the axial movement of the movable seat 2 in the installation cavity 12 is used to realize the locking and unlocking functions, and no other parts need to be added. It can replace the original locking method of the pawl and the protruding arm. The structure is compact. At the same time, the overall structural strength of the movable seat 2 is high. There will be no extrusion deformation or breakage problems during long-term use. It has a long service life, low production cost, and is easy and quick to install.

[0071] As a specific structural setting, the unlocking structure 6 includes two unlocking bosses 61 provided on the outer peripheral side wall of the driving wheel 3, and two unlocking sliders 62 provided on the inner wall of the movable seat 2 according to the movement trajectory of the unlocking bosses 61. Figure 8-9 The unlocking boss 61 has a T-shaped outline, with two arc-shaped protrusions 64 formed on both sides thereof. The two arc-shaped protrusions 64 are respectively provided with arc-shaped driving inclined surfaces 63. During the rotation of the driving wheel 3, the arc-shaped protrusions 64 will rotate with the driving wheel 3 and insert into the bottom of the unlocking slider 62, so that the unlocking slider 62 and the arc-shaped protrusions 64 are slidably connected. At this time, when the driving wheel 3 continues to rotate, the unlocking slider 62 will slide and climb along the driving inclined surfaces 63 on the arc-shaped protrusions 64, thereby driving the movable seat 2 to move upward. The structure is simple and the operation is convenient. In order to reduce the collision between the unlocking slider 62 and the arc-shaped protrusions 64, the unlocking slider 62 is provided with a guide inclined surface 65 that slides with the driving inclined surface 63, thereby reducing the friction resistance between the two.

[0072] like Figure 5 and Figure 11 As shown, the limiting structure includes two limiting blocks 51 provided on the middle seat 11 and two limiting groove groups provided on the movable seat 2, the limiting groove groups including closing limiting grooves 52 and opening limiting grooves 53 equidistantly spaced along the circumferential direction, ensuring that multiple limiting blocks 51 can be simultaneously inserted into multiple sets of closing limiting grooves 52 or opening limiting grooves 53 when the contact structure 13 is in the closing state or the opening state, so that the middle seat 11 and the movable seat 2 are engaged with the limiting groove groups through the limiting blocks 51 to form a limiting fit. In this embodiment, the closing limiting grooves 52 and the opening limiting grooves 53 are divided into four equal parts on the outer periphery of the bottom of the movable seat 2, ensuring that the operator only needs to rotate 90 degrees to perform the opening or closing operation.

[0073] The following combination Figure 7-10 The specific configuration of the energy storage structure 4 is described in detail:

[0074] The energy storage structure 4 includes: a first arc-shaped block 41, which is arranged on the driving wheel 3, and a first protrusion 42 extending downwardly along the axial direction of the installation cavity 12 at one end of the first arc-shaped block 41;

[0075] A second arc-shaped block 43 is formed on the movable seat 2 and is arranged concentrically with the first arc-shaped block 41. One end of the second arc-shaped block 43 extends upward along the axial direction of the installation cavity 12 and is provided with a second protrusion 44. The second protrusion 44 is staggered with the first protrusion 42.

[0076] An energy storage spring 45 is squeezed and abuts between the drive wheel 3 and the movable seat 2. When the operating mechanism is installed in the rotary switch, the energy storage spring 45 is squeezed by the drive wheel 3 and the movable seat 2 to generate an elastic force. The elastic force causes the drive wheel 3 to cling to the upper cover 1 and causes the movable seat 2 to abut against the middle seat 11. The mating surfaces of the drive wheel 3 and the upper cover 1, and the movable seat 2 and the middle seat 11 are smoothed to ensure that the elastic force does not affect the rotation of the drive wheel 3 and the movable seat 2 in the installation cavity 12.

[0077] The energy storage spring 45 has a first pressure-bearing end 46 and a second pressure-bearing end 47 that are bent toward each other at an angle. The first pressure-bearing end 46 is hooked against one end of the first protrusion 42 and the second arc block 43, and the second pressure-bearing end 47 is hooked against one end of the second protrusion 44 and the first arc block 41, ensuring that the energy storage spring 45 can reliably store energy when the drive wheel 3 rotates. When the energy storage spring 45 releases the stored energy, it will drive the movable seat 2 and the drive wheel 3 to maintain the same rotation amplitude. After the energy storage spring 45 releases the stored energy, when the drive wheel 3 rotates to a specific position, the elastic force applied by the energy storage spring 45 will push the movable seat 2 to move downward along the axial direction of the mounting cavity 12, forming a limited fit with the middle seat 11.

[0078] As a specific structural setting, an anti-separation structure is provided between the first arc block 41 and the second arc block 43. The anti-separation structure includes a first limiting boss 48 provided on the first protrusion 42 or the first arc block 41, and a second limiting boss 49 corresponding to the first limiting boss 48 and provided on the second protrusion 44 or the second arc block 43. The first limiting boss 48 and the second limiting boss 49 are hooked together under the elastic force of the energy storage spring 45, thereby preventing the driving wheel 3 and the movable seat 2 from being bounced apart from each other by the energy storage spring 45 during the installation process, so that the driving wheel 3 and the movable seat 2 are pre-assembled into one body and then synchronously installed in the installation cavity 12, realizing modular and integrated installation, and the installation is convenient and quick, thereby improving the assembly speed.

[0079] like Figure 7 As shown, a guide structure is further provided between the drive wheel 3 and the movable seat 2. The guide structure includes a guide protrusion 21 extending through the axis of the movable seat 2, a guide hole 22 extending through the guide protrusion 21, and a guide rod 31 extending from the axis of the drive wheel 3 and passing through the guide hole 22 to abut against the contact structure 13. The guide rod 31 and the guide hole 22 are plugged into each other to guide the installation of the drive wheel 3, thereby preventing the drive wheel 3 from being skewed by the elastic force of the energy storage spring 45, thereby preventing the drive wheel 3 from being difficult to install due to the elastic force of the energy storage spring 45.

[0080] As a specific structural setting, a first positioning structure is further provided between the middle seat 11 and the movable seat 2 to limit the rotation range of the movable seat 2. The first positioning structure includes two first positioning protrusions 71 provided on the middle seat 11, and two first positioning grooves 72 provided on the movable seat 2 corresponding to the first positioning protrusions 71. The first positioning protrusion 71 is slidably provided in the first positioning groove 72. The height of the first positioning protrusion 71 is higher than the height of the limit block 51. Since the height of the first positioning protrusion 71 is higher than the height of the limit block 51, the first positioning protrusion 71 is provided at a position higher than the limit block 51. When the driving wheel 3 drives the movable seat 2 to move upward, the limit block 51 will first separate from the closing limit groove 52 or the opening limit groove 53, releasing the limit cooperation between the movable seat 2 and the middle seat 11, and the first positioning protrusion 71 and the first positioning groove 72 will still maintain the slider connection state, so as to limit the rotation range of the movable seat 2. At the same time, when the first positioning protrusion 71 abuts against one end of the first positioning groove 72, it means that the limit block 51 and the closing limit groove 52 or the opening limit groove 53 have reached a horizontally aligned position.

[0081] like Figure 1-2 As shown, the driving wheel 3 includes an operating rod 32 passing through the upper cover 1 and a turntable 33 rotatably connected to the upper cover 1. The end of the operating rod 32 extending outside the upper cover 1 is fixed with an operating handle 15 by bolts. The operator can use the operating handle 15 to drive the driving wheel 3 to rotate rapidly.

[0082] As a specific structural setting, the upper cover 1 is provided with a receiving groove 14 for accommodating the turntable 33, and a second positioning structure for limiting the rotation range of the driving wheel 3 is also provided between the upper cover 1 and the turntable 33. The second positioning structure includes two second positioning protrusions 81 provided on the upper cover 1, and two second positioning grooves 82 corresponding to the second positioning protrusions 81 provided on the other side of the turntable 33. The second positioning protrusion 81 is slidably provided in the second positioning groove 82, thereby avoiding the problem of the driving wheel 3 deviating from the preset track due to excessive rotational force applied by the operator.

[0083] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. An operating mechanism of a rotary switch, arranged between an upper cover (1) and a middle seat (11) of the rotary switch, characterized in that ,include: A mounting cavity (12) formed between the upper cover (1) and the middle seat (11); A movable seat (2) is movably arranged in the mounting cavity (12) and is used to drive the contact structure (13) to perform an opening or closing action; A driving wheel (3) is rotatably connected between the upper cover (1) and the movable seat (2); An energy storage structure (4) connecting the driving wheel (3) and the movable seat (2) along the axial direction of the mounting cavity (12); A limiting structure is provided between the movable seat (2) and the middle seat (11) for maintaining a locked relative position between the two, wherein when the movable seat (2) moves downward along the axial direction of the installation cavity (12), the limiting structure forms a limiting fit with the middle seat (11); An unlocking structure (6) is provided between the driving wheel (3) and the movable seat (2), and when the driving wheel (3) rotates, the unlocking structure (6) drives the movable seat (2) to move upward along the axial direction of the mounting cavity (12), so that the movable seat (2) and the middle seat (11) are released from the limited engagement; The unlocking structure (6) comprises at least one unlocking boss (61) provided on the outer peripheral side wall of the driving wheel (3), and at least one unlocking slider (62) provided on the inner wall of the movable seat (2) according to the motion trajectory of the unlocking boss (61); arc-shaped driving inclined surfaces (63) are extended on both sides of the unlocking boss (61); the driving inclined surfaces (63) are slidably connected to the unlocking slider (62) during the rotation of the driving wheel (3), so that when the unlocking slider (62) slides and climbs along the driving inclined surfaces (63), it drives the movable seat (2) to move upward along the axial direction of the mounting cavity (12).

2. The operating mechanism of the rotary switch according to claim 1, characterized in that The unlocking boss (61) has a T-shaped outer profile, with two arc-shaped protrusions (64) formed on both sides thereof, and the two arc-shaped protrusions (64) are respectively provided with the driving inclined surfaces (63); the unlocking slider (62) is provided with a guide inclined surface (65) that slides in cooperation with the driving inclined surface (63).

3. The operating mechanism of the rotary switch according to claim 2, characterized in that The limiting structure comprises at least one limiting block (51) provided on one of the middle seat (11) and the movable seat (2), and at least one limiting groove group correspondingly provided on the other of the middle seat (11) and the movable seat (2); the middle seat (11) and the movable seat (2) are engaged with the limiting groove group through the limiting block (51) to form a limiting fit; the limiting groove group comprises a closing limiting groove (52) and an opening limiting groove (53) arranged at equal intervals along the circumferential direction.

4. The operating mechanism of the rotary switch according to claim 3, characterized in that : The energy storage structure (4) comprises: A first arc-shaped block (41) is formed on the driving wheel (3), and one end of the first arc-shaped block (41) is provided with a first protrusion (42) extending downwardly along the axial direction of the mounting cavity (12); A second arc-shaped block (43) is formed on the movable seat (2) and is arranged concentrically with the first arc-shaped block (41); one end of the second arc-shaped block (43) is provided with a second protrusion (44) extending upward along the axial direction of the installation cavity (12); the second protrusion (44) and the first protrusion (42) are arranged in an upper and lower staggered manner; An energy storage spring (45) is pressed and abutted between the driving wheel (3) and the movable seat (2), and comprises a first pressure-receiving end (46) and a second pressure-receiving end (47) bent and arranged at an angle, wherein the first pressure-receiving end (46) is hooked against the first protrusion (42) and one end of the second arc-shaped block (43), and the second pressure-receiving end (47) is hooked against the second protrusion (44) and one end of the first arc-shaped block (41).

5. The operating mechanism of the rotary switch according to claim 4, characterized in that An anti-separation structure is provided between the first arc-shaped block (41) and the second arc-shaped block (43), the anti-separation structure comprising a first limiting boss (48) provided on the first protrusion (42) or the first arc-shaped block (41), and a second limiting boss (49) provided on the second protrusion (44) or the second arc-shaped block (43) corresponding to the first limiting boss (48), wherein the first limiting boss (48) and the second limiting boss (49) are kept in hooked connection under the elastic force of the energy storage spring (45).

6. The operating mechanism of the rotary switch according to any one of claims 3 to 5, characterized in that A guide structure is further provided between the driving wheel (3) and the movable seat (2), the guide structure comprising a guide protrusion (21) passing through the axis of the movable seat (2), a guide hole (22) extending through the guide protrusion (21), and a guide rod (31) extending from the axis of the driving wheel (3) and passing through the guide hole (22) to abut against the contact structure (13).

7. The operating mechanism of the rotary switch according to claim 6, characterized in that A first positioning structure for limiting the rotation range of the movable seat (2) is further provided between the middle seat (11) and the movable seat (2), the first positioning structure comprising at least one first positioning protrusion (71) provided on one of the middle seat (11) and the movable seat (2), and at least one first positioning groove (72) provided on the other of the middle seat (11) and the movable seat (2) corresponding to the first positioning protrusion (71), the first positioning protrusion (71) being slidably provided in the first positioning groove (72), and the height of the first positioning protrusion (71) being higher than the height of the limit block (51).

8. The operating mechanism of the rotary switch according to claim 7, characterized in that The driving wheel (3) comprises an operating rod (32) passing through the upper cover (1) and a turntable (33) rotatably connected to the upper cover (1); an end of the operating rod (32) extending outside the upper cover (1) is fixed with an operating handle (15) via a bolt.

9. The operating mechanism of the rotary switch according to claim 8, characterized in that The upper cover (1) is provided with a receiving groove (14) for receiving the rotating disk (33), and a second positioning structure for limiting the rotation range of the driving wheel (3) is provided between the upper cover (1) and the rotating disk (33), the second positioning structure comprising at least one second positioning protrusion (81) provided on one of the upper cover (1) and the rotating disk (33), and at least one second positioning groove (82) provided on the other of the upper cover (1) and the rotating disk (33) corresponding to the second positioning protrusion (81), the second positioning protrusion (81) being slidably provided in the second positioning groove (82).

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