Rotary three-section selection switch

Abstract

The utility model provides a rotary three-section selection switch, and belongs to the technical field of simulators. The first microswitch and the second microswitch are both fixedly arranged on the mounting frame, the trigger structure rotationally penetrates through the panel and the top plate and is provided with a first trigger protrusion, a second trigger protrusion, a third trigger protrusion and a fourth trigger protrusion, and the rotary handle can rotate relative to the panel and has a first position, a second position and a third position. When the rotating handle is located at the first position, the first triggering protrusion triggers the first microswitch. When the rotating handle is located at the second position, the second triggering bulge triggers the second microswitch; when the rotating handle is located at the third position, the third trigger protrusion triggers the first microswitch, the fourth trigger protrusion triggers the second microswitch, and the locking structure can lock or unlock the rotating handle at the first position, the second position or the third position. The device is simple in structure, convenient to operate and not prone to damage, is provided with a locking structure, and has better stability and safety.

Description

Technical Field

[0001] The utility model belongs to the field of simulation simulators, and particularly relates to a rotary three-stage selector switch. Background Art

[0002] At present, the market of simulation simulators is constantly expanding. In such an environment, in order to achieve a higher simulation degree of the simulator, research on the functions of the real aircraft operating system has been carried out. Most of the existing throttle selection knobs of ground flight simulators use three-point selector switches. However, this type of selector switch has inconvenient operation, is not easy to install, and is prone to damage. Summary of the Utility Model

[0003] In view of this, in order to solve the problem that most of the existing throttle selection knobs of ground flight simulators use three-point selector switches, and this type of selector switch has inconvenient operation, is not easy to install, and is prone to damage, the utility model provides a rotary three-stage selector switch.

[0004] To achieve the above object, the utility model adopts the following technical solutions:

[0005] A rotary three-stage selector switch, comprising:

[0006] A panel and a top plate, the panel abuts against the top plate, and the panel is located above the top plate;

[0007] A mounting bracket, the mounting bracket is fixedly arranged below the top plate;

[0008] A first microswitch and a second microswitch, the first microswitch and the second microswitch are both fixedly arranged on the mounting bracket, and the first microswitch and the second microswitch are arranged at intervals in the vertical direction;

[0009] A rotary handle and a triggering structure, the rotary handle is fixedly connected to the triggering structure, the rotary handle is located above the panel, the triggering structure rotates through the panel and the top plate, the triggering structure is provided with a first triggering protrusion, a second triggering protrusion, a third triggering protrusion and a fourth triggering protrusion, the rotary handle can rotate relative to the panel and has a first position, a second position and a third position. When the rotary handle is in the first position, the first triggering protrusion triggers the first microswitch; when the rotary handle is in the second position, the second triggering protrusion triggers the second microswitch; when the rotary handle is in the third position, the third triggering protrusion triggers the first microswitch and the fourth triggering protrusion triggers the second microswitch;

[0010] A locking structure that can lock the rotary handle at the first position, the second position, or the third position.

[0011] As a preferred embodiment of the above-mentioned rotary three-stage selection switch, the locking structure includes a locking disc, a knob, a compression spring, and a locking post. The locking disc is fixedly connected to the panel, and the trigger structure passes through the locking disc. The locking disc is provided with a first locking hole, a second locking hole, and a third locking hole at intervals in the circumferential direction. The knob is fixedly connected to the locking post, and the locking post is provided with an abutting portion. The rotary handle is provided with a receiving hole, and the compression spring and the locking post are located in the receiving hole. The inner wall of the receiving hole is provided with an abutting surface. The compression spring is sleeved on the locking post, and the two ends of the compression spring respectively abut against the abutting portion and the abutting surface. The upper surface of the rotary handle abuts against the knob, and the locking post can be inserted into the first locking hole, the second locking hole, or the third locking hole.

[0012] As a preferred embodiment of the above-mentioned rotary three-stage selection switch, the trigger structure includes a fixed portion, a rotating portion, a first trigger portion, and a second trigger portion that are fixedly connected in sequence. The fixed portion is fixedly connected to the rotary handle. The rotating portion rotates through the panel and the top plate. The first trigger protrusion and the third trigger protrusion are arranged at intervals along the circumferential direction of the first trigger portion on the first trigger portion. The second trigger protrusion and the fourth trigger protrusion are arranged at intervals along the circumferential direction of the second trigger portion on the second trigger portion.

[0013] As a preferred embodiment of the above-mentioned rotary three-stage selection switch, the rotary three-stage selection switch further includes a fixing bolt. The fixed portion passes through the connection hole of the rotary handle, and the fixing bolt is screwed to the fixed portion. The lower surface of the nut of the fixing bolt abuts against the rotary handle.

[0014] As a preferred embodiment of the above-mentioned rotary three-stage selection switch, the outer peripheral surface of the fixed portion is composed of an arc surface and a plane, and the inner peripheral surface of the connection hole of the rotary handle is also composed of an arc surface and a plane.

[0015] As a preferred embodiment of the above-mentioned rotary three-stage selection switch, the rotating portion is fixedly provided with a limiting disc. The top plate is sleeved on the rotating portion, and the upper surface of the top plate abuts against the lower surface of the limiting disc. The panel is sleeved on the limiting disc.

[0016] As a preferred embodiment of the above-mentioned rotary three-stage selection switch, the rotary three-stage selection switch further includes a lubricating gasket. The lubricating gasket is sleeved on the rotating portion, and a part of the panel is sleeved on the lubricating gasket, and another part is sleeved on the limiting disc.

[0017] As a preferred solution of the above-mentioned rotary three-position selector switch, the lubricating gasket is made of polytetrafluoro material.

[0018] As a preferred solution of the above-mentioned rotary three-position selector switch, the rotary handle is fixedly arranged on the pointer, and the upper surface of the panel is provided with a first mark, a second mark and a third mark. When the rotary handle is in the first position, the pointer corresponds to the first mark; when the rotary handle is in the second position, the pointer corresponds to the second mark; when the rotary handle is in the third position, the pointer corresponds to the third mark.

[0019] As a preferred solution of the above-mentioned rotary three-position selector switch, the mounting bracket includes a first mounting block 51 and a second mounting block 52. The first mounting block 51 is fixedly arranged on the top plate, the second mounting block 52 is fixedly connected to the first mounting block 51. The first mounting block 51 is arranged in the vertical direction, the second mounting block 52 is arranged in the horizontal direction. The first microswitch is fixedly arranged above the second mounting block 52, and the second microswitch is fixedly arranged below the second mounting block 52.

[0020] Compared with the prior art, the beneficial effects of a rotary three-position selector switch provided by the present utility model are as follows:

[0021] 1. The present utility model provides a rotary three-position selector switch, which is the throttle selection knob of a ground flight simulator, simulating a real aircraft, adjusting the throttle state selection, and is mainly applied to a flight training simulator for training flight training, learning and experiencing. In this rotary three-position selector switch, by rotating the rotary handle, three throttle states can be selected. When the rotary handle rotates to the first position, the rotary handle drives the trigger structure to rotate, and the first trigger protrusion on the trigger structure will abut against the contact of the first microswitch, thereby triggering the first microswitch to realize the selection of the first throttle state; when the rotary handle rotates to the second position, the rotary handle drives the trigger structure to rotate, and the second trigger protrusion on the trigger structure will abut against the contact of the second microswitch, thereby triggering the second microswitch to realize the selection of the second throttle state; when the rotary handle rotates to the third position, the rotary handle drives the trigger structure to rotate, the third trigger protrusion on the trigger structure will abut against the contact of the first microswitch, and at the same time, the fourth trigger protrusion on the trigger structure will abut against the contact of the second microswitch, thereby triggering the first microswitch and the second microswitch at the same time to realize the selection of the third throttle state.

[0022] In this rotary three - position selector switch, the rotary handle can rotate relative to the panel and has a first position, a second position, and a third position, which respectively correspond to "normal", "off", and "emergency". When the fuel pump fails to work, the rotary handle is placed in the emergency position, and the auxiliary fuel tank supplies fuel to the engine, and at the same time, it returns to the main fuel tank through the return oil pipeline. When the indication of the auxiliary fuel tank is "0", the rotary handle rotates back to the normal position; otherwise, when the fuel in the auxiliary fuel tank is exhausted, it will cause the engine to stop in the air.

[0023] This rotary three - position selector switch is convenient to operate, simple and convenient to install, and not easily damaged.

[0024] 2. The present utility model provides a rotary three - position selector switch. In this rotary three - position selector switch, the locking structure can lock or unlock the rotary handle at the first position, the second position, or the third position. It can prevent the operator from accidentally touching it, has better stability and safety, can output more accurate data, and makes flight training more real and accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings that form a part of the present utility model are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0026] Figure 1 is a schematic structural diagram of the rotary three - position selector switch provided by a specific embodiment of the present utility model from the first perspective;

[0027] Figure 2 is a partial structural schematic of the rotary three - position selector switch provided by a specific embodiment of the present utility model Figure 1 ;

[0028] Figure 3 is a bottom view of the rotary three - position selector switch provided by a specific embodiment of the present utility model;

[0029] Figure 4 is a partial structural schematic of the rotary three - position selector switch provided by a specific embodiment of the present utility model Figure 2 ;

[0030] Figure 5 is a schematic structural diagram of the rotary three - position selector switch provided by a specific embodiment of the present utility model from the second perspective.

[0031] In the figure:

[0032] 1. Rotary handle; 11. Pointer;

[0033] 2. Panel;

[0034] 3. Top plate;

[0035] 41. Fixed part; 42. Rotating part; 43. First trigger part; 44. Second trigger part; 431. First trigger protrusion; 432. Third trigger protrusion; 441. Second trigger protrusion; 442. Fourth trigger protrusion;

[0036] 51. First mounting block 51; 52. Second mounting block 52;

[0037] 6. First micro switch;

[0038] 7. Second micro switch;

[0039] 81. Knob; 82. Locking column; 83. Compression spring; 84. Locking disc; 841. First locking hole; 842. Second locking hole; 843. Third locking hole;

[0040] 9. Fixing bolt. Specific embodiments

[0041] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments may be combined with each other. The described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0042] In the description of the present invention, unless otherwise clearly defined and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0043] In the present invention, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but are in contact through other features between them. Moreover, the first feature being "above", "above", and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the first feature has a higher horizontal height than the second feature. The first feature being "below", "below", and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or simply means that the first feature has a lower horizontal height than the second feature.

[0044] In the description of this embodiment, the orientation or positional relationship terms such as "upper", "lower", "right", etc. are based on the orientation or positional relationship shown in the drawings. It is only for the convenience of description and simplifying the operation, 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. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0045] Refer to Figures 1-5 To illustrate this embodiment, the present utility model provides a rotary three - position selector switch. The rotary three - position selector switch includes a panel 2, a top plate 3, a mounting bracket, a first micro - switch 6, a second micro - switch 7, a rotary handle 1, a trigger structure, and a locking structure. The panel 2 abuts against the top plate 3, the panel 2 is located above the top plate 3, the mounting bracket is fixedly arranged below the top plate 3, the first micro - switch 6 and the second micro - switch 7 are both fixedly arranged on the mounting bracket, the first micro - switch 6 and the second micro - switch 7 are arranged at intervals in the vertical direction, the rotary handle 1 is fixedly connected to the trigger structure, the rotary handle 1 is located above the panel 2, the trigger structure rotatably penetrates through the panel 2 and the top plate 3, the trigger structure is provided with a first trigger protrusion 431, a second trigger protrusion 441, a third trigger protrusion 432, and a fourth trigger protrusion 442. The rotary handle 1 can rotate relative to the panel 2 and has a first position, a second position, and a third position. When the rotary handle 1 is in the first position, the first trigger protrusion 431 triggers the first micro - switch 6; when the rotary handle 1 is in the second position, the second trigger protrusion 441 triggers the second micro - switch 7; when the rotary handle 1 is in the third position, the third trigger protrusion 432 triggers the first micro - switch 6 and the fourth trigger protrusion 442 triggers the second micro - switch 7, and the locking structure can lock or unlock the rotary handle 1 in the first position, the second position, or the third position.

[0046] In this rotary three - position selector switch, by rotating the rotary handle 1, three throttle states can be selected. When the rotary handle 1 rotates to the first position, the rotary handle 1 drives the trigger structure to rotate, and the first trigger protrusion 431 on the trigger structure will abut against the contact of the first micro - switch 6, thereby triggering the first micro - switch 6 to realize the selection of the first throttle state; when the rotary handle 1 rotates to the second position, the rotary handle 1 drives the trigger structure to rotate, and the second trigger protrusion 441 on the trigger structure will abut against the contact of the second micro - switch 7, thereby triggering the second micro - switch 7 to realize the selection of the second throttle state; when the rotary handle 1 rotates to the third position, the rotary handle 1 drives the trigger structure to rotate, the third trigger protrusion 432 on the trigger structure will abut against the contact of the first micro - switch 6, and at the same time, the fourth trigger protrusion 442 on the trigger structure will abut against the contact of the second micro - switch 7, thereby triggering both the first micro - switch 6 and the second micro - switch 7 to realize the selection of the third throttle state.

[0047] In this rotary three-position selector switch, the rotary handle 1 can rotate relative to the panel 2 and has a first position, a second position, and a third position, which respectively correspond to "Normal", "Off", and "Emergency". When the fuel pump fails to work, the rotary handle 1 is placed in the emergency position, and the auxiliary fuel tank supplies fuel to the engine, and at the same time returns to the main fuel tank through the return pipeline. When the indication of the auxiliary fuel tank is "0", the rotary handle 1 rotates back to the normal position. Otherwise, when the fuel in the auxiliary fuel tank is exhausted, it will cause the engine to stop in the air.

[0048] In this rotary three-position selector switch, the locking structure can lock or unlock the rotary handle 1 in the first position, the second position, or the third position, which can prevent the operator from accidentally touching it and improve safety.

[0049] This rotary three-position selector switch is the throttle selection knob 81 of the ground flight simulator, which simulates a real aircraft and adjusts the throttle state selection. It is mainly applied to flight training simulators for training flight training, learning, and experience. This rotary three-position selector switch selects the throttle state by rotating the rotary handle 1. This rotary three-position selector switch is convenient to operate, simple and convenient to install, not easily damaged, and is provided with a locking structure, having better stability and safety, and can output more accurate data, making the flight training more real and accurate.

[0050] Optionally, the locking structure includes a locking disc 84, a knob 81, a compression spring 83, and a locking post 82. The locking disc 84 is fixedly connected to the panel 2, and the trigger structure passes through the locking disc 84. The locking disc 84 is provided with a first locking hole 841, a second locking hole 842, and a third locking hole 843 at intervals along the circumferential direction. The knob 81 is fixedly connected to the locking post 82. The locking post 82 is provided with an abutting portion. The rotary handle 1 is provided with a receiving hole. The compression spring 83 and the locking post 82 are located in the receiving hole. The inner wall of the receiving hole is provided with an abutting surface. The compression spring 83 is sleeved on the locking post 82, and the two ends of the compression spring 83 respectively abut against the abutting portion and the abutting surface. The upper surface of the rotary handle 1 abuts against the knob 81, and the locking post 82 can be inserted into the first locking hole 841, the second locking hole 842, or the third locking hole 843.

[0051] When it is necessary to rotate the rotary handle 1 to the first position, hold the knob 81 with your hand and lift it upward. At this time, the compression spring 83 is compressed. Rotate the rotary handle 1 until the locking post 82 is above the first locking hole 841. Then release the knob 81. Under the action of the elastic force of the compression spring 83, the locking post 82 is inserted into the first locking hole 841. At this time, if the knob 81 is not lifted upward, the rotary handle 1 cannot be rotated, thus locking the rotary handle 1 in the first position. When it is necessary to rotate the rotary handle 1 to other positions, just lift the knob 81 upward to make the locking post 82 leave the first locking hole 841. The design of this locking structure can achieve the tactile feeling of the gear in place. A compression spring 83 is sleeved on the locking post 82, which can achieve the locking of the gear.

[0052] Optionally, the rotary handle 1 is fixedly arranged on the pointer 11. The upper surface of the panel 2 is provided with a first mark, a second mark and a third mark. When the rotary handle 1 is in the first position, the pointer 11 corresponds to the first mark; when the rotary handle 1 is in the second position, the pointer 11 corresponds to the second mark; when the rotary handle 1 is in the third position, the pointer 11 corresponds to the third mark. It can enable the operator to clearly know which position the rotary handle 1 is in at this time and understand in which direction to rotate the rotary handle 1.

[0053] Optionally, the triggering structure includes a fixed part 41, a rotating part 42, a first triggering part 43 and a second triggering part 44 that are fixedly connected in sequence. The fixed part 41 is fixedly connected to the rotary handle 1. The rotating part 42 rotates through the panel 2 and the top plate 3. The first triggering protrusion 431 and the third triggering protrusion 432 are arranged at intervals along the circumferential direction of the first triggering part 43 on the first triggering part 43. The second triggering protrusion 441 and the fourth triggering protrusion 442 are arranged at intervals along the circumferential direction of the second triggering part 44 on the second triggering part 44. In this embodiment, the first triggering part 43 and the second triggering part 44 are fixedly connected by a setscrew.

[0054] Specifically, the rotary three-stage selector switch further includes a fixing bolt 9. The fixed part 41 passes through the connection hole of the rotary handle 1. The fixing bolt 9 is screwed to the fixed part 41. The lower surface of the nut of the fixing bolt 9 abuts against the rotary handle 1. The fixed part 41 and the rotary handle 1 are fixedly connected through the fixing bolt 9. In this embodiment, the upper surface of the fixing bolt 9 does not exceed the upper surface of the rotary handle 1.

[0055] Optionally, the outer peripheral surface of the fixed part 41 is composed of an arc surface and a flat surface, and the inner peripheral surface of the connection hole of the rotary handle 1 is also composed of an arc surface and a flat surface. It can prevent the fixed part 41 from rotating relative to the rotary handle 1.

[0056] Optionally, the rotating part 42 is fixedly provided with a limiting disc. The top plate 3 is sleeved on the rotating part 42. The upper surface of the top plate 3 abuts against the lower surface of the limiting disc. The panel 2 is sleeved on the limiting disc.

[0057] Optionally, the rotary three-stage selector switch further includes a lubricating gasket. The lubricating gasket is sleeved on the rotating part 42, and a part of the panel 2 is sleeved on the lubricating gasket, and the other part is sleeved on the limiting disc. The lubricating gasket can lubricate the rotation of the rotating part 42 relative to the panel 2. Optionally, the lubricating gasket is made of polytetrafluoro material.

[0058] Optionally, the mounting bracket includes a first mounting block 51 and a second mounting block 52. The first mounting block 51 is fixedly arranged on the top plate 3, the second mounting block 52 is fixedly connected to the first mounting block 51. The first mounting block 51 is arranged in the vertical direction, and the second mounting block 52 is arranged in the horizontal direction. The first microswitch 6 is fixedly arranged above the second mounting block 52, and the second microswitch 7 is fixedly arranged below the second mounting block 52. It can be understood that the first microswitch 6 is located above the second microswitch 7, and the first triggering part 43 is located above the second triggering part 44.

[0059] Obviously, the embodiments of the present invention disclosed above are only used to help illustrate the present invention. The embodiments do not describe all the details in detail, nor do they limit the present invention to the specific embodiments described. According to the content of this specification, many modifications and changes can be made. These embodiments are selected and specifically described in this specification to better explain the principle and practical application of the present invention, so that those skilled in the art can understand and utilize the present invention well. It is not necessary and impossible to enumerate all the embodiments here. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A rotary three-position selector switch, characterized in that, Including: A panel (2) and a top plate (3), the panel (2) being located above the top plate (3); A mounting bracket, fixedly arranged below the top plate (3); A first microswitch (6) and a second microswitch (7), both the first microswitch (6) and the second microswitch (7) being fixedly arranged on the mounting bracket, the first microswitch (6) and the second microswitch (7) being arranged at intervals in the vertical direction; A rotary handle (1) and a triggering structure, the rotary handle (1) being fixedly connected to the triggering structure, the rotary handle (1) being located above the panel (2), the triggering structure rotatably passing through the panel (2) and the top plate (3), the triggering structure being provided with a first triggering protrusion (431), a second triggering protrusion (441), a third triggering protrusion (432) and a fourth triggering protrusion (442), the rotary handle (1) being able to rotate relative to the panel (2) and having a first position, a second position and a third position. When the rotary handle (1) is in the first position, the first triggering protrusion (431) triggers the first microswitch (6); when the rotary handle (1) is in the second position, the second triggering protrusion (441) triggers the second microswitch (7); when the rotary handle (1) is in the third position, the third triggering protrusion (432) triggers the first microswitch (6) and the fourth triggering protrusion (442) triggers the second microswitch (7); A locking structure, capable of locking the rotary handle (1) in the first position, the second position or the third position.

2. The rotary three-position selector switch according to claim 1, characterized in that: The locking structure includes a locking disc (84), a knob (81), a compression spring (83) and a locking post (82). The locking disc (84) is fixedly connected to the panel (2), the triggering structure passes through the locking disc (84), the locking disc (84) is provided with a first locking hole (841), a second locking hole (842) and a third locking hole (843) at intervals in the circumferential direction. The knob (81) is fixedly connected to the locking post (82), the locking post (82) is provided with an abutting portion, the rotary handle (1) is provided with a receiving hole, the compression spring (83) and the locking post (82) are located in the receiving hole, the inner wall of the receiving hole is provided with an abutting surface, the compression spring (83) is sleeved on the locking post (82), and the two ends of the compression spring (83) are respectively abutted against the abutting portion and the abutting surface. The upper surface of the rotary handle (1) abuts against the knob (81), and the locking post (82) can be inserted into the first locking hole (841), the second locking hole (842) or the third locking hole (843).

3. The rotary three-stage selector switch according to claim 1, characterized in that: The triggering structure includes a fixed part (41), a rotating part (42), a first triggering part (43) and a second triggering part (44) which are fixedly connected in sequence. The fixed part (41) is fixedly connected to the rotating handle (1). The rotating part (42) rotatably penetrates through the panel (2) and the top plate (3). The first triggering protrusion (431) and the third triggering protrusion (432) are arranged at intervals along the circumferential direction of the first triggering part (43) on the first triggering part (43). The second triggering protrusion (441) and the fourth triggering protrusion (442) are arranged at intervals along the circumferential direction of the second triggering part (44) on the second triggering part (44).

4. The rotary three-stage selector switch according to claim 3, characterized in that: It further includes a fixing bolt (9). The fixed part (41) penetrates through the connection hole of the rotating handle (1). The fixing bolt (9) is screwed to the fixed part (41). The lower surface of the nut of the fixing bolt (9) abuts against the rotating handle (1).

5. The rotary three-position selector switch according to claim 4, characterized in that: The outer peripheral surface of the fixed part (41) is composed of an arc surface and a plane. The inner peripheral surface of the connection hole of the rotating handle (1) is also composed of an arc surface and a plane.

6. The rotary three-stage selector switch according to claim 3, characterized in that: The rotating part (42) is fixedly provided with a limiting disc. The top plate (3) is sleeved on the rotating part (42). The upper surface of the top plate (3) abuts against the lower surface of the limiting disc. The panel (2) is sleeved on the limiting disc.

7. The rotary three-stage selector switch according to claim 6, characterized in that: It further includes a lubricating gasket. The lubricating gasket is sleeved on the rotating part (42). A part of the panel (2) is sleeved on the lubricating gasket, and another part is sleeved on the limiting disc.

8. The rotary three-position selector switch according to claim 7, characterized in that: The lubricating gasket is made of polytetrafluoro material.

9. The rotary three-stage selector switch according to claim 1, characterized in that: The rotating handle (1) is fixedly provided with a pointer (11). The upper surface of the panel (2) is provided with a first mark, a second mark and a third mark. When the rotating handle (1) is in the first position, the pointer (11) corresponds to the first mark; when the rotating handle (1) is in the second position, the pointer (11) corresponds to the second mark; when the rotating handle (1) is in the third position, the pointer (11) corresponds to the third mark.

10. The rotary three-stage selector switch according to claim 1, characterized in that: The mounting bracket includes a first mounting block (51) and a second mounting block (52). The first mounting block (51) is fixedly provided on the top plate (3). The second mounting block (52) is fixedly connected to the first mounting block (51). The first mounting block (51) is arranged in the vertical direction. The second mounting block (52) is arranged in the horizontal direction. The first microswitch (6) is fixedly provided above the second mounting block (52). The second microswitch (7) is fixedly provided below the second mounting block (52).

Images