Switching mechanism and change-over switch

Abstract

The utility model provides a switching mechanism and a change-over switch. The switching mechanism comprises a mounting bracket, a transmission assembly, a supporting structure and a supporting shaft, the installation support comprises a first side plate and a second side plate, the transmission assembly is installed between the first side plate and the second side plate and comprises a first gear and a second gear, and a rotating shaft of the first gear is connected to the inner side of the first side plate and the inner side of the second side plate; the first gear is vertically arranged above the second gear and is meshed with the second gear; the supporting structure is a shell structure with a containing cavity, and a reinforcing structure is arranged in the shell structure and used for enhancing the structural strength of the supporting structure. The supporting structure is connected to the outer side of the first side plate in a buckled mode, and the outer side of the first side plate is the side away from the transmission assembly. One end of the supporting shaft is sleeved with the first mounting hole, the first mounting hole is formed in the rotating center of the second gear, and the other end of the supporting shaft is connected with the supporting structure. Therefore, the structural strength of the switching mechanism is improved, and the cost of the change-over switch is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of electronic equipment, and in particular to a conversion mechanism and a conversion switch. Background Art

[0002] A transfer switching device is a switch that can switch between different circuits. The transfer mechanism is the mechanical structure used to switch the circuit in the transfer switch. The transfer mechanism generally includes two modes: automatic transfer and manual transfer. The automatic transfer mode generally uses a motor to provide driving force to achieve automatic transfer.

[0003] In the related art, in addition to providing the driving force for the automatic switching mode, the motor also provides support for the transmission components in the switching mechanism, so that the switching mechanism can perform stable switching and ensure the structural strength of the switching structure to avoid increasing maintenance costs. However, in the current market, there are more and more user demands for switching switches equipped with only manual switching modes. Canceling the automatic switching mode means canceling the motor, which greatly reduces the structural strength of the switching mechanism and increases the maintenance cost of the switching switch. Utility Model Content

[0004] The present application provides a conversion mechanism and a conversion switch to solve the problem that the structural strength of the conversion mechanism is greatly reduced and the cost of the conversion switch is increased, thereby improving the structural strength of the conversion mechanism and reducing the cost of the conversion switch when only a manual conversion mode is provided.

[0005] In the first aspect, the present application provides a conversion mechanism, including: a mounting bracket, a transmission assembly, a support structure and a support shaft; the mounting bracket includes a first side plate and a second side plate, and there is a first mounting space between the first side plate and the second side plate; the transmission assembly is installed in the first mounting space, and the transmission assembly includes a first gear and a second gear, one end of the rotating shaft of the first gear is connected to the inner side of the first side plate, and the other end of the rotating shaft of the first gear is connected to the inner side of the second side plate; the first gear is vertically arranged above the second gear, and the first gear is meshed with the second gear; the support structure is a shell structure with a accommodating cavity, and a reinforcement structure is arranged in the shell structure for enhancing the structural strength of the support structure; the support structure is snap-connected to the outer side of the first side plate, and the outer side of the first side plate is the side away from the transmission assembly; one end of the support shaft is sleeved in the first mounting hole, the first mounting hole is opened at the rotation center of the second gear, and the other end of the support shaft is connected to the support structure.

[0006] According to the first aspect, the conversion mechanism includes: a mounting bracket, a transmission assembly, a support structure and a support shaft. The mounting bracket includes a first side plate and a second side plate, and the transmission assembly includes a first gear and a second gear meshing with each other. The first gear and the second gear are installed in a first mounting space between the first side plate and the second side plate. Since one end of the rotating shaft of the first gear is connected to the inner side of the first side plate, the other end of the rotating shaft of the first gear is connected to the inner side of the second side plate, and the first gear is vertically arranged above the second gear, during the meshing process, the first gear will apply the gravity of the first gear to the second gear, so that the second gear moves along the direction of gravity and disengages from the meshing position.

[0007] The supporting structure with a accommodating cavity is snap-connected to the outer side of the first side plate, so that the supporting structure is fixed on the mounting bracket and the accommodating cavity becomes a closed accommodating cavity. The supporting shaft is connected between the second gear and the supporting structure and is located in the accommodating cavity, so that the supporting shaft is sleeved in the first mounting hole opened on the second gear, replacing the driving shaft of the motor in the related technology to provide support for the second gear, preventing the second gear from moving along the direction of gravity, thereby fixing the second gear in the meshing position, thereby eliminating the motor and reducing the manufacturing cost on the basis of achieving the normal operation of the transmission assembly; and the reinforcing structure arranged in the supporting structure is used to enhance the structural strength of the supporting structure, improve the reliability of the supporting structure, and reduce the maintenance cost.

[0008] In a possible design, one or more weight-reducing holes are formed on the second gear.

[0009] According to the embodiment, one or more weight-reducing holes are opened on the second gear, which can reduce the supporting pressure of the supporting shaft, thereby improving the reliability of the transmission component and reducing maintenance costs; and the weight-reducing holes can save the material cost of the second gear, thereby further reducing the production cost of the conversion mechanism.

[0010] In a possible design, a second mounting hole is provided on the support structure, the other end of the support shaft is sleeved in a sleeve, the sleeve is sleeved in the second mounting hole, and an interference connection is formed between the sleeve and the second mounting hole.

[0011] According to the embodiment, the support shaft is sleeved in the sleeve, so that the support shaft can rotate relative to the sleeve, and the sleeve is sleeved in the second mounting hole opened on the support structure, and is interference-connected with the second mounting hole, so that the position between the sleeve and the second mounting hole is relatively fixed and cannot move radially, thereby ensuring that the second gear is stably maintained in the meshing position.

[0012] In a possible design, the cross-sectional area of ​​one end of the support shaft is larger than the cross-sectional area of ​​the other end of the support shaft.

[0013] According to this embodiment, the cross-sectional area of ​​one end of the support shaft is larger than the cross-sectional area of ​​the other end of the support shaft, which can reduce the material cost of the support shaft, thereby further reducing the production cost of the conversion mechanism.

[0014] In a possible design, the first mounting hole is a key-type hole; and the cross-section of the other end of the support shaft is adapted to the shape and size of the first mounting hole.

[0015] According to this embodiment, the first mounting hole is a key-type hole, and the cross-section of the other end of the support shaft is adapted to the shape and size of the first mounting hole. When the other end of the support shaft is sleeved in the first mounting hole, no relative sliding occurs between the support shaft and the first mounting hole, so that the support shaft can rotate with the second gear, thereby realizing the normal operation of the transmission assembly.

[0016] In a possible design, the reinforcement structure is a plurality of reinforcement ribs extending outward from the center of the second mounting hole.

[0017] According to the embodiment, the reinforcement structure is a plurality of reinforcement ribs extending outward from the center of the second mounting hole, and the force is unloaded with the support shaft as the center, thereby enhancing the structural strength of the support structure to the greatest extent. In addition, on the basis of enhancing the structural strength of the support structure and improving the reliability of the support structure, the material cost is saved and the installation is convenient, further reducing the production cost of the conversion mechanism.

[0018] In a possible design, a groove is provided on the reinforcing rib, and the groove is used to avoid a protruding structure provided on the outer side of the first side plate.

[0019] According to this embodiment, a groove is provided on the reinforcing rib to avoid the protruding structure provided on the outer side of the first side plate, thereby ensuring the integrity of the conversion mechanism, and the groove on the reinforcing rib further reduces the material consumption of the reinforcing structure, thereby reducing the production cost of the conversion mechanism.

[0020] In a possible design, a corresponding number of threaded holes are provided on the support structure and the first side plate, and the support structure is fixed to the first side plate by a corresponding number of bolts.

[0021] According to the embodiment, a corresponding number of threaded holes are provided on the support structure and the first side plate, and a corresponding number of bolts are connected to the corresponding threaded holes, so that the support structure can be detachably connected to the first side plate by means of a threaded connection; the threaded connection has high strength to achieve fixation between the support structure and the first side plate; the threaded connection is easy to disassemble and reuse, so that the support structure can be repaired or replaced separately; the threaded connection structure is simple, which further reduces the production cost of the conversion mechanism.

[0022] In a possible design, a handle mounting hole is provided on the first gear, and a handle is sleeved in the handle mounting hole to drive the first gear to rotate.

[0023] According to this embodiment, the handle is sleeved in the handle mounting hole provided on the first gear, and the operator can rotate the handle to drive the first gear to rotate, so that the conversion mechanism switches the circuit in a manual conversion mode.

[0024] In a second aspect, the present application provides a conversion switch, comprising the conversion mechanism described in any one of the above embodiments.

[0025] The beneficial effects provided in the above-mentioned second aspect can be referred to the beneficial effects brought about by the above-mentioned first aspect and various possible implementation methods of the first aspect, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 A schematic diagram of a structure of a conversion mechanism provided in an embodiment of the present application;

[0028] Figure 2 A structural schematic diagram of some components of the conversion mechanism provided in an embodiment of the present application;

[0029] Figure 3 A schematic diagram of the structure of a support shaft provided in an embodiment of the present application;

[0030] Figure 4 for Figure 2 Exploded view of;

[0031] Figure 5 A schematic diagram of the structure of a second gear provided in an embodiment of the present application;

[0032] Figure 6 A structural schematic diagram and a partial enlarged view of a support structure provided in an embodiment of the present application;

[0033] Figure 7 for Figure 1 Rear view of.

[0034] Description of reference numerals:

[0035] 100-conversion mechanism;

[0036] 1-mounting bracket; 11-first side panel; 12-second side panel;

[0037] 2-transmission assembly; 21-first gear; 211-rotation shaft; 212-handle mounting hole; 22-second gear; 221-first mounting hole; 222-weight reduction hole;

[0038] 3-support structure; 31-second mounting hole; 311-boss;

[0039] 4- reinforcing rib; 41- groove;

[0040] 5-support shaft; 51-one end of the support shaft; 52-the other end of the support shaft;

[0041] 6-sleeve; 7-bolt; 8-threaded hole;

[0042] X - direction of gravity. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0044] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used in the specification of the application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0045] The terms "comprising" and "having" and any variations thereof in the specification, claims and drawings of this application are intended to cover but not exclude other contents. The word "a" or "an" does not exclude the presence of a plurality.

[0046] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase "embodiments" in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0047] The term "and / or" in this article is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0048] The directional words appearing in the following description are all directions shown in the drawings, and do not limit the specific structure of the present application. For example, in the description of the present application, the directions or positional relationships indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the directions or positional relationships shown in the 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 direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present application.

[0049] In addition, the expressions of the indicated directions, such as the X direction, the Y direction, and the Z direction, used to illustrate the operation and construction of the components of the present embodiment are not absolute but relative, and although these indications are appropriate when the components of the battery pack are in the positions shown in the figures, when these positions change, these directions should be interpreted differently to correspond to the changes.

[0050] In addition, the terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects rather than to describe a specific order, and may explicitly or implicitly include one or more of the features.

[0051] In the description of the present application, unless otherwise specified, "plurality" means more than two (including two), and similarly, "multiple groups" means more than two groups (including two).

[0052] In the description of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, the "connection" or "connection" of a mechanical structure may refer to a physical connection. For example, the physical connection may be a fixed connection, such as a fixed connection through a fixing member, such as a fixed connection through a screw, bolt or other fixing member; the physical connection may also be a detachable connection, such as a mutual snap connection or snap connection; the physical connection may also be an integral connection, such as welding, bonding or integral molding to form a connection for connection. The "connection" or "connection" of a circuit structure may refer to an electrical connection or a signal connection in addition to a physical connection. For example, it may be a direct connection, that is, a physical connection, or it may be an indirect connection through at least one intermediate element, as long as the circuit is connected, or it may be the internal connection of two elements; the signal connection may refer to a signal connection through a media medium, such as a radio wave, in addition to a signal connection through a circuit. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0053] The conversion switch is used to convert the circuit, wherein the conversion switch is generally used to convert the circuit in an automatic conversion mode and a manual conversion mode. Specifically, the automatic conversion mode is that the conversion switch drives the motor after receiving the conversion signal, so that the motor drives the conversion mechanism to perform mechanical action, thereby realizing the conversion.

[0054] Since the automatic conversion mode requires additional control modules, electrical connection modules and motors to be installed in the conversion switch, the dual-mode conversion switch is not cost-effective for customers who only need the manual conversion mode. Therefore, in order to cater to the market, a conversion switch that cancels the automatic conversion mode and only retains the manual conversion mode is urgently needed.

[0055] However, in addition to the driving function, the motor in the related art is also connected to the transmission assembly in the conversion mechanism and provides support for the transmission assembly in the conversion mechanism, so that the conversion mechanism can perform stable conversion, thereby ensuring the structural strength of the conversion structure. Therefore, it is necessary to cancel the automatic conversion mode on the basis of ensuring the structural strength of the conversion mechanism. In order to ensure the structural strength of the conversion mechanism, other mechanical structures with lower costs can be used to replace the motor to play a supporting role.

[0056] The specific technical solutions are as follows:

[0057] like Figure 1-Figure 3As shown, the first aspect of an embodiment of the present application provides a conversion mechanism 100, comprising: an installation bracket 1, a transmission assembly 2, a support structure 3 and a support shaft 5; the installation bracket 1 comprises a first side plate 11 and a second side plate 12, and there is a first installation space between the first side plate 11 and the second side plate 12; the transmission assembly 2 is installed in the first installation space, and the transmission assembly 2 comprises a first gear 21 and a second gear 22, one end 51 of the rotating shaft 211 of the first gear 21 is connected to the inner side of the first side plate 11, and the other end 51 of the rotating shaft 211 of the first gear 21 is connected to the inner side of the second side plate 12; the first gear 21 is vertically arranged above the second gear 22, and the first gear 21 is meshed with the second gear 22.

[0058] Specifically, Figure 1 As shown, the mounting bracket 1 is used to fix or install the transmission assembly 2 and the support structure 3 in the conversion mechanism 100. The mounting bracket 1 is fixed in the conversion switch, and the transmission assembly 2 and the support structure 3 are both arranged on the mounting bracket 1. When the transmission assembly 2 and the support structure 3 are both fixed in the conversion switch, it is more convenient to establish a connection relationship between the transmission assembly 2 and the support structure 3, so that the support structure 3 plays a supporting role for the transmission assembly 2 instead of the motor.

[0059] Furthermore, if Figure 1 As shown, the mounting bracket 1 includes a first side plate 11 and a second side plate 12, the inner side of the first side plate 11 faces the inner side of the second side plate 12, and the two ends of the rotating shaft 211 of the first gear 21 in the transmission assembly 2 are respectively connected to the inner side of the first side plate 11 and the inner side of the second side plate 12, so that the installation position of the first gear 21 on the mounting bracket 1 is relatively fixed.

[0060] Furthermore, if Figure 1 As shown, the second gear 22 is meshed with the first gear 21, and when the first gear 21 rotates, the second gear 22 should rotate with the first gear 21. However, since the first gear 21 is vertically arranged above the second gear 22, when the first gear 21 is meshed with the second gear 22, the gravity of the first gear 21 is applied to the second gear 22, which will cause the second gear 22 to be displaced along the gravity direction X, thereby causing the second gear 22 to be out of meshing position, resulting in failure of the transmission between the first gear 21 and the second gear 22. Therefore, it is necessary to provide a supporting force for the second gear 22 to overcome the gravity of the first gear 21 so that the second gear 22 is always in the meshing position to ensure the normal operation of the transmission assembly 2.

[0061] like Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the support structure 3 is a shell structure with a accommodating cavity, and a reinforcing structure is arranged inside the shell structure to enhance the structural strength of the support structure 3; the support structure 3 is snap-fitted and connected to the outer side of the first side plate 11, and the outer side of the first side plate 11 is the side away from the transmission assembly 2; one end 51 of the support shaft is sleeved in the first mounting hole 221, and the first mounting hole 221 is opened at the rotation center of the second gear 22, and the other end 52 of the support shaft is connected to the support structure 3.

[0062] Specifically, the second gear 22 is provided with a first mounting hole 221, so that one end 51 of the support shaft is sleeved on the first mounting hole 221, and the other end 52 of the support shaft is connected to the support structure 3, and the support structure 3 is connected to the outer side of the first side plate 11. It can be seen that the other end 52 of the support shaft is fixed to the mounting bracket 1, and at this time, the movement tendency of the second gear 22 to generate displacement along the gravity direction X is blocked by the support shaft 5 sleeved in the first mounting hole 221, so that the support shaft 5 generates a supporting force on the second gear 22 opposite to the gravity direction X, so that the second gear 22 cannot generate displacement along the gravity direction X, so that the second gear 22 is fixed in the meshing position, and the normal operation of the transmission assembly 2 is realized.

[0063] Furthermore, since the support structure 3 is connected to the outside of the first side plate 11 and the second gear 22 is located on the inside of the first side plate 11, the support shaft 5 needs to penetrate the first side plate 11 and be connected to the support structure 3. If the support structure 3 is a flat plate structure and is closely attached to the outside of the first side plate 11, the penetration amount of the support shaft 5 is very small, and it is inconvenient to establish a connection relationship with the support structure 3. Therefore, the support structure 3 is set as a shell structure with an accommodating cavity, so that a part of the length of the support shaft 5 is located in the accommodating cavity after penetrating the first side plate 11, which is convenient for establishing a connection relationship.

[0064] In addition, the support shaft 5 generates a supporting force on the second gear 22, and the support shaft 5 also bears the supporting reaction force and transmits the force through the support shaft 5; therefore, a reinforcing structure is set in the shell structure to greatly buffer the supporting reaction force, thereby enhancing the structural strength of the support structure 3, improving the reliability of the support structure 3, and reducing maintenance costs.

[0065] The conversion mechanism 100 provided by the embodiment of the first aspect of the present application includes: a mounting bracket 1, a transmission assembly 2, a support structure 3 and a support shaft 5. Among them, the mounting bracket 1 includes a first side plate 11 and a second side plate 12, and the transmission assembly 2 includes a first gear 21 and a second gear 22 that mesh with each other. The first gear 21 and the second gear 22 are installed in a first mounting space between the first side plate 11 and the second side plate 12. Since one end 51 of the rotating shaft 211 of the first gear 21 is connected to the inner side of the first side plate 11, the other end 51 of the rotating shaft 211 of the first gear 21 is connected to the inner side of the second side plate 12, and the first gear 21 is vertically arranged above the second gear 22, during the meshing process, the first gear 21 will apply the gravity of the first gear 21 to the second gear 22, so that the second gear 22 moves along the gravity direction X and disengages from the meshing position.

[0066] The support structure 3 with a accommodating cavity is snap-fitted and connected to the outer side of the first side plate 11, so that the support structure 3 is fixed on the mounting bracket 1 and the accommodating cavity becomes a closed accommodating cavity. The support shaft 5 is connected between the second gear 22 and the support structure 3 and is located in the accommodating cavity, so that the support shaft 5 is sleeved in the first mounting hole 221 opened on the second gear 22, replacing the driving shaft of the motor in the related technology to provide support for the second gear 22, preventing the second gear 22 from moving along the gravity direction X, so that the second gear 22 is fixed in the meshing position, thereby eliminating the motor and reducing the manufacturing cost on the basis of achieving the normal operation of the transmission assembly 2; and the reinforcement structure arranged in the support structure 3 is used to enhance the structural strength of the support structure 3, improve the reliability of the support structure 3, and reduce the maintenance cost.

[0067] In some embodiments, Figure 5 As shown, one or more weight-reducing holes 222 are formed on the second gear 22 .

[0068] Firstly, in addition to supporting the gravity of the first gear 21 , the support shaft 5 also needs to support the gravity of the second gear 22 . One or more weight-reducing holes 222 are provided on the second gear 22 to reduce the supporting pressure of the support shaft 5 , thereby improving the reliability of the transmission assembly 2 .

[0069] Secondly, one or more weight-reducing holes 222 are provided on the second gear 22 , so as to save the material cost of the second gear 22 .

[0070] According to the embodiment, one or more weight-reducing holes 222 are opened on the second gear 22, so that the supporting pressure of the supporting shaft 5 can be reduced, thereby improving the reliability of the transmission assembly 2 and reducing the maintenance cost; and the weight-reducing holes 222 can save the material cost of the second gear 22, thereby further reducing the production cost of the conversion mechanism 100.

[0071] In some embodiments, Figure 3 , Figure 4 and Figure 6 As shown, a second mounting hole 31 is provided on the support structure 3, the other end 52 of the support shaft is sleeved in the sleeve 6, the sleeve 6 is sleeved in the second mounting hole 31, and the sleeve 6 and the second mounting hole 31 are in interference connection.

[0072] Specifically, the second gear 22 needs to rotate with the first gear 21, so the support shaft 5 sleeved on the second gear 22 rotates with the second gear 22. While ensuring that the support shaft 5 can rotate, in order to keep the second gear 22 stably in the meshing position, the support shaft 5 cannot easily move radially.

[0073] For example, one or more bosses 311 are provided on the inner wall of the second mounting hole 31 , and when the sleeve 6 is sleeved in the second mounting hole 31 , the bosses 311 will be tightly pressed against the sleeve 6 , thereby achieving an interference connection between the sleeve 6 and the second mounting hole 31 .

[0074] According to the embodiment, the support shaft 5 is sleeved in the sleeve 6, so that the support shaft 5 can rotate relative to the sleeve 6, and the sleeve 6 is sleeved in the second mounting hole 31 opened on the support structure 3, and is interference-connected with the second mounting hole 31, so that the position between the sleeve 6 and the second mounting hole 31 is relatively fixed and cannot move radially, thereby ensuring that the second gear 22 is stably maintained in the meshing position.

[0075] In some embodiments, Figure 3 As shown, the cross-sectional area of ​​one end 51 of the support shaft is larger than the cross-sectional area of ​​the other end 52 of the support shaft.

[0076] Specifically, in order to reduce material costs, the cross-sectional area of ​​the end 51 of the support shaft 5 connected to the second gear 22 is smaller than the cross-sectional area of ​​the end 51 of the support shaft 5 connected to the support structure 3 .

[0077] According to this embodiment, the cross-sectional area of ​​one end 51 of the support shaft is larger than the cross-sectional area of ​​the other end 52 of the support shaft, which can reduce the material cost of the support shaft 5 and further reduce the production cost of the conversion mechanism 100.

[0078] In some embodiments, Figure 3 and Figure 5 As shown, the first mounting hole 221 is a key-shaped hole; the cross section of the other end 52 of the support shaft is adapted to the shape and size of the first mounting hole 221 .

[0079] Specifically, the second gear 22 rotates with the first gear 21, and the support shaft 5 sleeved on the second gear 22 rotates with the second gear 22, so that relative sliding cannot occur between the first mounting hole 221 and the support shaft 5. If the first mounting hole 221 is a circular hole or a quasi-circular hole, and the cross section of the other end 52 of the support shaft is also circular or quasi-circular, relative rotation will occur between the first mounting hole 221 and the support shaft 5, affecting the synchronous rotation of the support shaft 5 and the second gear 22.

[0080] On the other hand, in order to obtain a support shaft 5 with a circular cross section at one end 51 and a key-shaped cross section at the other end 51, the two sides of the circle can be directly cut inward to obtain a key-shaped cross section. In this case, the part with the key-shaped cross section uses less material than the part with the circular cross section, and the process is simple, further saving production costs.

[0081] According to this embodiment, the first mounting hole 221 is a key-type hole, and the cross-section of the other end 52 of the support shaft is adapted to the shape and size of the first mounting hole 221. When the other end 52 of the support shaft is sleeved in the first mounting hole 221, no relative sliding will occur between the support shaft 5 and the first mounting hole 221, so that the support shaft 5 can rotate with the second gear 22, thereby realizing the normal operation of the transmission assembly 2.

[0082] In some embodiments, Figure 2 , Figure 4 and Figure 6 As shown, the reinforcement structure is a plurality of reinforcement ribs 4 extending outward from the center of the second mounting hole 31 .

[0083] Specifically, the reinforcement structure may be: reinforcement ribs 4 , support frames, pads, and protective objects, etc. Considering the comprehensive structural strength, production cost, and processing difficulty, the reinforcement structure is reinforcement ribs 4 .

[0084] On the one hand, compared with other reinforcing structures, the linear shape of the reinforcing rib 4 has highly concentrated strength, which can provide a stronger reinforcement effect for specific areas or weaknesses; and can meet the structural reinforcement requirements while minimizing changes to the original structure.

[0085] On the other hand, compared with other reinforcement structures, the reinforcement ribs 4 save material costs and reduce the weight of the overall structure; they are easy to install and do not require overly complicated construction work.

[0086] According to the embodiment, the reinforcement structure is a plurality of reinforcement ribs 4 extending outward from the center of the second mounting hole 31, and the force is unloaded around the support shaft 5, thereby enhancing the structural strength of the support structure 3 to the greatest extent. In addition, on the basis of enhancing the structural strength of the support structure 3 and improving the reliability of the support structure 3, the material cost is saved and the installation is convenient, thereby further reducing the production cost of the conversion mechanism 100.

[0087] In some embodiments, Figure 4 As shown, a groove 41 is provided on the reinforcing rib 4 , and the groove 41 is used to avoid a protruding structure (not shown in the figure) provided on the outer side of the first side plate 11 .

[0088] Specifically, the first side plate 11 is a part of the mounting bracket 1, so some structures for fixing other parts are also arranged on the outer side of the first side plate 11. When the support structure 3 is buckled on the outer side of the first side plate 11, the reinforcing ribs 4 arranged on the support structure 3 may interfere with these fixing structures, thereby affecting the integrity of the conversion mechanism 100.

[0089] According to this embodiment, a groove 41 is provided on the reinforcing rib 4 to avoid the protruding structure provided on the outer side of the first side plate 11, thereby ensuring the integrity of the conversion mechanism 100, and the groove 41 on the reinforcing rib 4 further reduces the material usage of the reinforcing structure, thereby reducing the production cost of the conversion mechanism 100.

[0090] In some embodiments, Figure 6 and Figure 7 As shown, a corresponding number of threaded holes 8 are provided on the supporting structure 3 and the first side plate 11 , and the supporting structure 3 is fixed to the first side plate 11 by a corresponding number of bolts 7 .

[0091] Specifically, the support structure 3 is used to receive and buffer the support force of the support shaft 5, and is therefore a component that is more easily damaged in the conversion mechanism 100. In order to facilitate maintenance and reduce maintenance costs, the support structure 3 is detachably connected to the first side plate 11 so that the support structure 3 can be repaired or replaced separately.

[0092] The detachable connection can be: a threaded connection, a snap connection, a lock connection or a latch connection. Compared with other detachable connection structures, the bolt 7 connection structure is simple, has high strength, good adjustability, is easy to disassemble and reuse, and has a certain self-locking mechanism.

[0093] According to the embodiment, a corresponding number of threaded holes 8 are provided on the support structure 3 and the first side plate 11, and a corresponding number of bolts 7 are connected to the corresponding threaded holes 8, so that the support structure 3 can be detachably connected to the first side plate 11 by means of a threaded connection; the threaded connection has high strength to achieve fixation between the support structure 3 and the first side plate 11; the threaded connection is easy to disassemble and can be reused, so that the support structure 3 can be repaired or replaced separately; the threaded connection structure is simple, which further reduces the production cost of the conversion mechanism 100.

[0094] In some embodiments, Figure 1 As shown, a handle mounting hole 212 is provided on the first gear 21, and a handle is sleeved in the handle mounting hole 212 for driving the first gear 21 to rotate.

[0095] Specifically, the first gear 21 is used as a driving wheel in the manual switching mode, and it is inconvenient for the operator to directly rotate the first gear 21 to switch the circuit in the switch. An easy-to-operate operating mechanism needs to be designed on the first gear 21 to achieve manual switching.

[0096] According to this embodiment, the handle is sleeved in the handle mounting hole 212 provided on the first gear 21, and the operator can rotate the handle to drive the first gear 21 to rotate, so that the conversion mechanism 100 switches the circuit in a manual conversion mode.

[0097] In a second aspect, the present application provides a conversion switch (not shown in the figure), comprising the conversion mechanism 100 described in any one of the above embodiments.

[0098] The beneficial effects provided in the above-mentioned second aspect can be referred to the beneficial effects brought about by the above-mentioned first aspect and various possible implementation methods of the first aspect, and will not be repeated here.

[0099] Those skilled in the art will appreciate that, although some embodiments herein include certain features included in other embodiments but not other features, the combination of features of different embodiments is meant to be within the scope of the present application and form different embodiments. For example, in the claims, any one of the claimed embodiments may be used in any combination.

[0100] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A conversion mechanism, characterized in that: include: Mounting brackets, transmission components, support structures and support shafts; The mounting bracket includes a first side plate and a second side plate, and a first mounting space is provided between the first side plate and the second side plate; The transmission assembly is installed in the first installation space, and the transmission assembly includes a first gear and a second gear, one end of the rotating shaft of the first gear is connected to the inner side of the first side plate, and the other end of the rotating shaft of the first gear is connected to the inner side of the second side plate; The first gear is vertically arranged above the second gear, and the first gear is meshed with the second gear; The supporting structure is a shell structure with a containing cavity, and a reinforcing structure is arranged inside the shell structure to enhance the structural strength of the supporting structure; The support structure is buckled and connected to the outer side of the first side plate, and the outer side of the first side plate is a side away from the transmission assembly; One end of the support shaft is sleeved in a first mounting hole, the first mounting hole is opened at the rotation center of the second gear, and the other end of the support shaft is connected to the support structure.

2. The conversion mechanism according to claim 1, characterized in that: The second gear is provided with one or more weight-reducing holes.

3. The conversion mechanism according to claim 1 or 2, characterized in that: The support structure is provided with a second mounting hole, the other end of the support shaft is sleeved in a sleeve, the sleeve is sleeved in the second mounting hole, and an interference connection is formed between the sleeve and the second mounting hole.

4. The conversion mechanism according to claim 3, characterized in that: The cross-sectional area of ​​one end of the support shaft is larger than the cross-sectional area of ​​the other end of the support shaft.

5. The conversion mechanism according to claim 4, characterized in that: The first mounting hole is a key-shaped hole; The cross section of the other end of the support shaft is adapted to the shape and size of the first mounting hole.

6. The conversion mechanism according to claim 5, characterized in that: The reinforcement structure is a plurality of reinforcement ribs extending outward from the center of the second mounting hole.

7. The conversion mechanism according to claim 6, characterized in that: The reinforcing rib is provided with a groove, and the groove is used to avoid the protruding structure arranged on the outer side of the first side plate.

8. The conversion mechanism according to claim 7, characterized in that: A corresponding number of threaded holes are provided on the support structure and the first side plate, and the support structure is fixed to the first side plate by a corresponding number of bolts.

9. The conversion mechanism according to claim 8, characterized in that: A handle mounting hole is provided on the first gear, and a handle is sleeved in the handle mounting hole to drive the first gear to rotate.

10. A conversion switch, comprising the conversion mechanism according to any one of claims 1 to 9.

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