A push button switch capable of displaying on-off signals by light emission

Abstract

The utility model discloses a button switch can pass through luminous display signal on-off, by button subassembly, shell (1) and pin subassembly along same axis sequentially plug-in and constitute, whole machine is without screw, in button subassembly, character piece (2) is fixed in button casing (4) through character piece fixed seat (3) bending rivet pressing, can replace the identification fast, common end contact piece (6) with spring elastic lock two incandescent lamps (5) and complete electrical connection, connecting seat (8) and casing articulate, and form rotary limit with shell male buckle, in pin subassembly, micro -switch (10) is positioned in pin mounting seat (11) through the dowel without screw thread, and micro -switch pressure rod (13) and incandescent lamp pressure rod (15) are respectively guided by corresponding spring and fixed sheet, only along the axis sliding. Pin subassembly inserts shell bottom, and button subassembly pushes in and is positioned by back spring and connecting seat simultaneously, completes the snap -on assembly. The utility model discloses compact structure, strong anti -vibration, tool -free dismounting, can be directly installed in aircraft cockpit audio control panel, satisfies airworthiness requirement.

Description

Technical Field

[0001] This utility model relates to the field of aircraft push-button switch technology, and in particular to a push-button switch that can be turned on and off by emitting a light to display a signal. Background Technology

[0002] Existing domestically produced civilian push-button switches are generally designed for ground equipment, are large in size, and rely on screws for locking. In the high-vibration and drastic temperature changes of aircraft environments, they are prone to loosening, poor contact, or lamp detachment, failing to pass CCAR-25 and other airworthiness tests. Furthermore, traditional switches require tools for disassembly and assembly, resulting in long maintenance times, and the mostly silkscreened markings make on-site functional modifications difficult. Airborne audio control panels demand miniaturization, high reliability, quick maintenance, and visual on / off indication from switches, which existing products cannot simultaneously meet. Therefore, there is an urgent need for a new type of push-button switch that is simple in structure, threadless, illuminated, and has excellent vibration resistance. Utility Model Content

[0003] The purpose of this invention is to provide a push-button switch that can be turned on and off by emitting a light-emitting signal, thereby solving the aforementioned problems in the prior art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A push-button switch that can be turned on and off by emitting a light to indicate a signal includes: a push-button assembly, a housing (1), and a pin assembly, which are connected in sequence.

[0006] The button assembly includes: a character plate, a character plate holder, a button housing, two incandescent lamps, a common terminal contact, a contact rivet, a connector, and two connector rivets;

[0007] The pin assembly includes: a micro switch, a pin mounting base, a micro switch lever spring, a micro switch lever, a micro switch lever retaining plate, two incandescent lamp levers, two incandescent lamp lever springs, and two incandescent lamp lever retaining plates;

[0008] in:

[0009] The character chip is pressed into the fixing grooves on the front and back of the button housing by the deformation of the metal shell of the character chip fixing seat, forming a detachable and non-loosening planar marking structure;

[0010] The common contact piece is riveted to the bottom of the button housing by contact piece rivets, and its spring piece simultaneously presses the two incandescent lamps into the corresponding mounting holes, forming a screwless elastic locking of the lamp body;

[0011] The connecting seat is hinged to both sides of the button housing via two connecting seat rivets, forming a swing hinge that can rotate around the rivet axis, which is used to cooperate with the outer housing protrusion to realize the travel limit of the button assembly;

[0012] The micro switch is inserted into the two mounting pins of the pin mounting base through its own two mounting holes, forming a threadless pin positioning.

[0013] The micro switch lever spring is sleeved on the micro switch lever and together they are embedded in the middle mounting hole of the pin mounting base. The micro switch lever fixing piece is inserted into the corresponding fixing groove, so that the lever slides only along the axis.

[0014] Two incandescent lamp pressure rod springs are respectively fitted onto two incandescent lamp pressure rods and embedded together into the mounting holes on both sides of the pin mounting base. Incandescent lamp pressure rod fixing pieces are inserted into the corresponding fixing slots, so that the pressure rods slide only along the axis.

[0015] The pin assembly is inserted into the bottom of the housing, and the metal strips on both sides of the housing are pressed into the pin assembly positioning groove to form a pluggable rigid connection.

[0016] Align the notch of the button assembly with the front mounting buckle of the housing and push it in. The spring clip on the back of the housing snaps into the button housing's limiting groove, completing the screwless snap assembly of the entire machine.

[0017] In some specific embodiments, the character sheet is a thin sheet that is flatly attached to the upper surface of the character sheet holder. The outer edge of the metal shell of the character sheet holder is bent and pressed into the rectangular fixing grooves on the front and back of the button shell to form a replaceable planar marking structure for the character sheet.

[0018] In some specific embodiments, the common terminal contact is an "L"-shaped conductive spring, with its vertical arm riveted to the bottom of the button housing by contact rivets, and the two springs of the horizontal arm pressing against the two incandescent lamp pins respectively, forming an elastic locking of the lamp body and an electrical common terminal.

[0019] In some specific embodiments, the connector is a U-shaped metal part with round holes on both sides. It is hinged to the cylindrical bosses on both sides of the button housing via rivets, so that the connector can rotate around the rivet axis for sliding engagement with the outer shell protrusion.

[0020] In some specific embodiments, the micro switch body is a cuboid with two circular mounting holes on the bottom surface, which are interference-fitted with two cylindrical mounting pins on the top surface of the pin mounting base to form a threadless vertical positioning.

[0021] In some specific embodiments, the micro switch lever is a stepped shaft, with its large end opposite to the micro switch drive handle, and its small end fitted with a micro switch lever spring and then inserted into the central circular guide hole of the pin mounting base. The micro switch lever fixing plate is inserted laterally into the slot of the pin mounting base, restricting the lever rotation and allowing only axial sliding.

[0022] In some specific embodiments, the two incandescent lamp pressure rods are identical stepped shafts. After the incandescent lamp pressure rod springs are respectively fitted onto the shaft shoulders, they are inserted into the circular guide holes on both sides of the pin mounting seat. The incandescent lamp pressure rod fixing piece is inserted laterally into the slot of the pin mounting seat, so that the pressure rod slides only along the axis and elastically presses against the bottom of the incandescent lamp.

[0023] In some specific embodiments, the pin mounting base is a rectangular insulating block with multiple metal pins extending from the bottom surface and strip-shaped positioning grooves on both side walls for insertion and positioning with the metal strips on both sides of the housing.

[0024] In some specific embodiments, the outer shell is a rectangular metal shell with a wedge-shaped mounting buckle on the inner wall of the front and an elastic cantilever hook on the inner wall of the back, which respectively engage with the notch of the connecting seat and the limiting groove of the button housing to form a screwless enclosed shell structure.

[0025] In some specific embodiments, an annular limiting groove is provided on the outer wall of the button housing. After the spring piece on the back of the housing is inserted into the limiting groove, the axial travel of the button assembly relative to the housing is constrained by the rotation limiting of the connecting seat and the mounting protrusion and the spring piece groove, thereby realizing the mechanical limiting of button pressing and rebound.

[0026] The beneficial effects of this utility model are:

[0027] The entire structure is screwless, with all snap-fit / riveting connections, allowing for quick assembly.

[0028] Incandescent lamps are clamped by spring clips, providing high vibration resistance and meeting the requirements of airborne environments;

[0029] The character chips are replaceable to achieve different functional identifiers;

[0030] Its size is reduced by more than 30% compared to civilian products, and it can directly replace existing audio panel switches;

[0031] The reliability meets the relevant requirements of CCAR-25 after passing airworthiness tests. Attached Figure Description

[0032] Figure 1 This is the assembly isometric drawing of this utility model;

[0033] Figure 2 This is a structural diagram of the button assembly of this utility model;

[0034] Figure 3 This is a structural diagram of the pin assembly of this utility model.

[0035] In the attached diagram: 1. Housing; 2. Character plate; 3. Character plate mounting base; 4. Button housing; 5. Incandescent lamp; 6. Common terminal contact; 7. Contact plate rivet; 8. Connecting base; 9. Connecting base rivet; 10. Micro switch; 11. Pin mounting base; 12. Micro switch lever spring; 13. Micro switch lever; 14. Micro switch lever fixing plate; 15. Incandescent lamp lever; 16. Incandescent lamp lever spring; 17. Incandescent lamp lever fixing plate. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.

[0037] Reference Figure 1 , Figure 2 and Figure 3 The push-button switch shown includes a push-button assembly, a housing 1, and a pin assembly, which are connected in sequence.

[0038] The button assembly includes: a character plate 2, a character plate mounting base 3, a button housing 4, two incandescent bulbs 5, a common terminal contact 6, a contact plate rivet 7, a connector 8, and two connector rivets 9.

[0039] The pin assembly includes: a micro switch 10, a pin mounting base 11, a micro switch lever spring 12, a micro switch lever 13, a micro switch lever fixing plate 14, two incandescent lamp levers 15, two incandescent lamp lever springs 16, and two incandescent lamp lever fixing plates 17.

[0040] in:

[0041] The character piece 2 is pressed into the front and back fixing grooves of the button housing 4 by the deformation of the metal housing of the character piece fixing seat 3, forming a detachable and non-loosening planar marking structure;

[0042] The common contact 6 is riveted to the bottom of the button housing 4 by the contact rivet 7, and its spring simultaneously presses the two incandescent lamps 5 into the corresponding mounting holes, forming a screwless elastic locking of the lamp body.

[0043] The connecting seat 8 is hinged to both sides of the button housing 4 via two connecting seat rivets 9, forming a swing hinge that can rotate around the rivet axis, which is used to cooperate with the outer shell 1 to realize the travel limit of the button assembly;

[0044] The micro switch 10 is inserted into the two mounting pins of the pin mounting base 11 through its own two mounting holes, forming a threadless pin positioning.

[0045] The micro switch lever spring 12 is sleeved on the micro switch lever 13 and together they are embedded in the middle mounting hole of the pin mounting base 11. The micro switch lever fixing piece 14 is inserted into the corresponding fixing groove, so that the lever slides only along the axis.

[0046] Two incandescent lamp pressure rod springs 16 are respectively fitted onto two incandescent lamp pressure rods 15 and are embedded together into the mounting holes on both sides of the pin mounting base 11. Incandescent lamp pressure rod fixing pieces 17 are inserted into the corresponding fixing slots, so that the pressure rods slide only along the axis.

[0047] The pin assembly is inserted into the bottom of the housing 1, and the metal strips on both sides of the housing 1 are pressed into the positioning groove of the pin assembly to form a pluggable rigid connection.

[0048] The notch of the connector 8 of the button assembly is aligned with the front of the housing 1 and the mounting buckle is pushed in. The spring piece on the back of the housing 1 is inserted into the limiting groove of the button housing 4, completing the screwless snap assembly of the whole machine.

[0049] In this embodiment, the present invention discloses a push button switch that can be turned on and off by emitting a light-emitting signal. Its structure consists of three main parts: a push button assembly, a housing 1, and a pin assembly, which are sequentially inserted along the axial direction. All parts are connected by rivets, springs, or metal deformation. The whole machine is screwless, forming a modular switch with high vibration resistance and quick disassembly.

[0050] The button assembly comprises the upper exterior component and the light source. The character plate 2 is a thin sheet laid flat on the top surface of the character plate holder 3. The metal outer edge of the character plate holder 3 is molded and then bit into the rectangular fixing grooves on both sides of the button housing 4, ensuring reliable positioning and quick replacement of the character plate 2, meeting the requirements of multi-functional airborne marking. The bottom of the button housing 4 is riveted to a common contact plate 6 via contact rivets 7. This contact plate is "L"-shaped, with an elastic pressure plate extending from each side of the horizontal arm. The pressure plates simultaneously press the pins of the two incandescent lamps 5 into the corresponding mounting holes in the housing. The lamp body can withstand aircraft vibration without screws, and the common contact plate 6 simultaneously performs the dual functions of electrical conduction and lamp body locking. The middle section of the button housing 4 is hinged to "U"-shaped connecting seats 8 via connecting seat rivets 9. The connecting seats 8 can rotate around the rivet axis, and their notches correspond to the wedge-shaped protrusions on the front of the outer shell 1, forming a rotation limit pair used to control the button's pressing stroke and prevent accidental dislodgement.

[0051] The pin assembly constitutes the lower electrical and signal execution section. The pin mounting base 11 is a rectangular insulating block with a row of metal pins extending from its bottom surface for soldering to an external circuit board. The microswitch 10 is a cuboid, with two circular holes on its bottom surface directly fitting onto two cylindrical pins on the top surface of the pin mounting base 11, allowing for precise positioning and impact resistance without threads. The microswitch lever spring 12 is fitted onto the outer circle of the stepped microswitch lever 13, and both are inserted together into the guide hole in the middle of the pin mounting base 11. The microswitch lever fixing piece 14 is inserted laterally into the slot in the base wall, ensuring that the lever can only move along its vertical axis, guaranteeing consistent triggering with each press. Two incandescent lamp lever springs 16 are respectively fitted onto the outer circles of two incandescent lamp levers 15 with identical stepped axes. The levers are inserted into the guide holes on both sides of the pin mounting base 11, and the incandescent lamp lever fixing pieces 17 are also inserted laterally into the slots. The top of the lever rests against the bottom of the incandescent lamp 5, providing upward elastic support and automatically compensating for gaps during thermal expansion and contraction of the lamp body, preventing the lamp legs from bending and breaking.

[0052] The assembly process is a pure plug-in action: First, the pin assembly is pushed into the housing 1 from below. The metal strips on both sides of the housing 1 are pressed into the positioning grooves on the side wall of the pin mounting base 11, forming a rigid bottom. Then, the button assembly is pushed in from top to bottom. The notch of the connecting base 8 slides down along the convex buckle slope on the front of the housing 1 and rotates. When it reaches the end of its stroke, the elastic cantilever hook on the back of the housing 1 automatically engages with the annular limiting groove on the outer wall of the button housing 4, completing the top locking. The entire assembly process requires no tools. During disassembly, the button assembly can be pulled out simply by pressing the hook lightly, meeting the requirements for rapid airborne maintenance.

[0053] The dynamic working process is as follows: In the free state, the micro switch lever 13 is lifted by the micro switch lever spring 12, and the micro switch 10 is in its normally closed or normally open initial state. The incandescent lamp lever 15 presses the incandescent lamp 5 upward, and the lamp body does not wobble. When the operator presses the top of the button housing 4, the button housing 4 drives the connecting seat 8 to swing downward around the rivet axis. At the same time, the large end of the micro switch lever 13 contacts the micro switch 10 drive handle and continues to compress the micro switch lever spring 12. When the stroke reaches the trigger point of the micro switch 10, the switch quickly switches and outputs an on / off signal. Simultaneously, the common terminal contact 6 is connected to the external power supply, and the current flows into the two incandescent lamps 5 through the spring, causing the filaments to light up. The light passes through the character plate 2 to display "ON" or other markings, realizing one-button on / off operation. After releasing the button, the micro switch lever spring 12 and the button housing 4 reset together, the micro switch 10 returns to its initial state, the light goes out, and one on / off cycle with luminous indication is completed.

[0054] This structure integrates mechanical limit, flexible light locking, threadless positioning, and quick plug-in / plug-out into the same axial space, enabling the switch to meet airworthiness test requirements such as airborne vibration, shock, and temperature cycling while reducing its size by 30%. At the same time, character chip 2 can be replaced on-site, greatly improving the versatility and maintenance efficiency of the cockpit audio control panel.

[0055] In some specific embodiments, the character piece 2 is a thin sheet that is flatly attached to the upper surface of the character piece fixing base 3. The outer metal shell of the character piece fixing base 3 is bent and pressed into the rectangular fixing grooves on the front and back of the button shell 4 to form a replaceable planar marking structure for the character piece 2.

[0056] In some specific embodiments, the common terminal contact 6 is an "L"-shaped conductive spring, with its vertical arm riveted to the bottom of the button housing 4 by contact rivets 7, and the two springs of the horizontal arm pressing against the pins of the two incandescent lamps 5 respectively, forming an elastic locking of the lamp body and an electrical common terminal.

[0057] In some specific embodiments, the connecting seat 8 is a "U"-shaped metal part with round holes on both sides. It is hinged to the cylindrical bosses on both sides of the button housing 4 via the connecting seat rivet 9, so that the connecting seat 8 can rotate around the rivet axis for sliding engagement with the outer shell 1.

[0058] In some specific embodiments, the micro switch 10 body is a cuboid with two circular mounting holes on the bottom surface, which are interference-fitted with two cylindrical mounting pins on the top surface of the pin mounting base 11 to form a threadless vertical positioning.

[0059] In some specific embodiments, the micro switch lever 13 is a stepped shaft, with its large end opposite to the drive handle of the micro switch 10, and its small end fitted with the micro switch lever spring 12 and then inserted into the middle circular guide hole of the pin mounting base 11. The micro switch lever fixing piece 14 is inserted laterally into the slot of the pin mounting base 11 to restrict the rotation of the lever and allow only axial sliding.

[0060] In some specific embodiments, the two incandescent lamp pressure rods 15 are identical stepped shafts. The shoulders of the shafts are respectively fitted with incandescent lamp pressure rod springs 16 and inserted into the circular guide holes on both sides of the pin mounting base 11. The incandescent lamp pressure rod fixing piece 17 is inserted laterally into the slot of the pin mounting base 11, so that the pressure rod slides only along the axis and elastically presses against the bottom of the incandescent lamp 5.

[0061] In some specific embodiments, the pin mounting base 11 is a rectangular insulating block with multiple metal pins extending from the bottom surface and strip-shaped positioning grooves on both side walls for insertion and positioning with the metal strips on both sides of the outer casing 1.

[0062] In some specific embodiments, the outer shell 1 is a rectangular metal shell with a wedge-shaped mounting buckle on the inner wall of the front and an elastic cantilever hook on the inner wall of the back, which respectively engage with the notch of the connecting seat 8 and the limiting groove of the button housing 4 to form a screwless closed shell structure.

[0063] In some specific embodiments, the outer wall of the button housing 4 is provided with an annular limiting groove. After the spring piece on the back of the housing 1 is inserted into the limiting groove, the axial travel of the button assembly relative to the housing 1 is constrained by the connecting seat 8, the rotation limit of the mounting buckle, and the spring piece groove, thereby realizing the mechanical limiting of button pressing and rebound.

[0064] In some specific embodiments, the character piece 2 is made into a thin sheet with a thickness of less than 0.2 mm, and its lower surface is completely attached to the top plane of the character piece fixing seat 3; the outer metal shell of the character piece fixing seat 3 is bent outward by 90° under the action of the tooling, and then pressed into the rectangular fixing groove reserved on the front and back of the button shell 4 by the riveting machine. The bent edge and the groove wall form an interference fit, which not only prevents the character piece 2 from lifting upward, but also allows maintenance personnel to use tweezers to pry up the bent edge to replace the character piece with different markings, realizing the function of detachable flat marking.

[0065] The common contact 6 is stamped into an "L" shape from elastic copper alloy. Its vertical arm is firmly riveted to the bottom surface of the button housing 4 by contact rivets 7. The front end of the horizontal arm splits into two independent springs. Each spring elastically presses against the root of the corresponding incandescent lamp 5 in the form of a cantilever beam, forming a screwless elastic lock for the lamp body. At the same time, the two springs are electrically connected in parallel as a common terminal to ensure that the current is evenly distributed to the two incandescent lamps 5, realizing the dual function of mechanical locking and electrical conduction.

[0066] The connecting seat 8 is a U-shaped metal stamping part with a round hole punched on each of its two arms. During assembly, the round holes are aligned with the cylindrical bosses extending from both sides of the button housing 4, and the connecting seat rivets 9 are passed through and riveted, allowing the connecting seat 8 to rotate freely around the rivet axis. When the button assembly is installed into the housing 1 from top to bottom, the notch slope of the connecting seat 8 first contacts the wedge-shaped mounting protrusion on the front of the housing 1. As it continues to be pushed in, the connecting seat 8 is passively rotated and slides past the top of the protrusion. Finally, the protrusion falls into the bottom of the notch, forming a rotation limit, preventing the button assembly from coming off upwards, while allowing the button assembly to make slight swings around the same axis within the pressing stroke, achieving smooth guidance.

[0067] The micro switch 10 is encapsulated in a rectangular plastic box with two pre-drilled circular mounting holes on the bottom. Two cylindrical mounting pins extend from the top of the pin mounting base 11. The holes and pins are interference-fitted, and after being pressed in, they can form a rigid vertical positioning without threads, which can withstand longitudinal impacts from aircraft without loosening.

[0068] The micro switch lever 13 is designed as a stepped shaft, with the large end having a larger diameter than the small end. The large end is directly opposite the drive handle of the micro switch 10. The outer circle of the small end is first fitted with the micro switch lever spring 12, and then inserted together into the circular guide hole reserved in the middle of the pin mounting base 11. The micro switch lever fixing plate 14 is inserted laterally into the through slot on the wall of the pin mounting base 11, and its inner end is engaged in the annular groove of the small end of the lever, thereby preventing the lever from rotating and retaining only the axial sliding degree of freedom, ensuring that the trigger displacement is consistent each time it is pressed, and improving the switch life.

[0069] The two incandescent lamp pressure rods 15 are stepped shafts of the same size, with incandescent lamp pressure rod springs 16 fitted at the shoulders of the shafts, and then inserted into the circular guide holes on both sides of the pin mounting base 11; the incandescent lamp pressure rod fixing piece 17 is also inserted laterally into the groove of the base wall and locked into the pressure rod ring groove, so that the pressure rod slides only along the axis, and the top end elastically presses against the bottom of the incandescent lamp 5, which not only provides a buffer for the lamp body in the vibration environment, but also automatically compensates for the length change when the lamp body expands and contracts with heat, thus avoiding the pin from bending fatigue and breaking.

[0070] The pin mounting base 11 is integrally formed from a rectangular high-temperature resistant insulating material, with multiple metal pins extending from the bottom surface for soldering to the circuit board. Strip-shaped positioning grooves are milled on both sides of the housing 1. During assembly, the metal strips bent inward on both sides of the housing 1 slide into the positioning groove along the axial direction to form a plug-in rigid connection, preventing the pin assembly from rotating or retracting inside the housing.

[0071] The outer shell 1 is a rectangular metal shell formed by integral stretching. A wedge-shaped mounting buckle is stamped on the inner wall of the front, and an elastic cantilever hook is stamped on the inner wall of the back. When the button assembly is pushed into place, the notch of the connecting seat 8 engages with the wedge-shaped buckle. At the same time, the cantilever hook is engaged in the annular limiting groove on the outer wall of the button housing 4 under the action of elasticity, forming a double engagement. The whole machine can be sealed without screws, and its vibration resistance is better than that of threaded connection.

[0072] An annular limiting groove is machined in the middle of the outer wall of the button housing 4. After assembly, the spring piece on the back of the housing 1 is inserted into the limiting groove, which together with the connecting seat 8-convex buckle rotary joint forms an axial bidirectional limiting: the downward stroke is determined by the trigger point of the micro switch 10, and the upward stroke is determined by the contact surface between the spring piece and the limiting groove, thereby precisely controlling the mechanical boundary of the button pressing and rebound, preventing overpressure damage to the micro switch, and providing clear tactile feedback.

[0073] The dynamic working process is as follows: In the free state, the micro switch lever spring 12 lifts the micro switch lever 13, and the micro switch 10 is in the initial energized state. The incandescent lamp lever spring 16, through the incandescent lamp lever 15, firmly holds the incandescent lamp 5 under the spring of the common terminal contact 6, and the lamp body does not wobble. When a finger presses the top of the button housing 4, the button housing 4 drives the connecting seat 8 to swing downward around the axis of the connecting seat rivet 9. The large end of the micro switch lever 13 contacts the micro switch 10 drive handle and compresses the micro switch lever spring 12. After reaching the trigger point, the micro switch 10 quickly switches, outputting an on / off signal. At the same time, current is sent to the two incandescent lamps 5 through the common terminal contact 6, and the light shines through the character chip 2 to display the "ON" state. After the finger is released, all springs reset together, the light goes out, and one on / off cycle with luminous indication is completed. This process achieves mechanical limit, elastic lamp locking, threadless positioning, and quick insertion and removal on a single axis, significantly improving the reliability and maintenance efficiency of the airborne audio control panel.

[0074] The working principle of this utility model can be summarized as follows:

[0075] The integrated axial motion of "press-trigger-illuminate-reset": When the pilot presses down on the button housing 4, the connecting seat 8 swings slightly around the axis of the connecting seat rivet 9, synchronously transmitting the pressing force to the micro switch lever 13; the micro switch lever 13 compresses the micro switch lever spring 12 and moves linearly downward along the axis, triggering the micro switch 10 at the end of its stroke, causing the internal contacts of the switch to quickly change and output an "ON" signal to the aircraft audio system. At the same time, the common terminal contact 6 introduces the power current into the two incandescent lamps 5 that are elastically locked, and the filaments immediately light up. The light passes through the character plate 2 to form a clear "ON" indication, realizing a visual feedback of "one-button lighting and instant connection". After the finger is released, the microswitch lever spring 12 and the incandescent lamp lever spring 16 rebound together, driving the button housing 4 upward. The microswitch 10 resets to the "off" state, the light goes out, and the connecting seat 8 engages with the outer shell 1 again at the swing endpoint. The spring piece on the back of the outer shell 1 engages with the limiting groove of the button housing 4, completing the axial bidirectional locking, awaiting the next operation. The entire process completes mechanical limiting, elastic lamp locking, threadless positioning, and quick insertion and removal on a single axis, ensuring reliable switching under high vibration environments on the airborne system while providing instant luminous indication, meeting the cockpit's comprehensive requirements for miniaturization, tool-free maintenance, and airworthiness reliability.

[0076] By adopting the above-disclosed technical solution of this utility model, the following beneficial effects are obtained:

[0077] With a fully snap-fit ​​and riveted structure, the entire machine is screwless, requiring no tools for assembly and disassembly, reducing maintenance time by more than 70%.

[0078] Incandescent lamps are elastically locked via a common end contact spring, and with dynamic compensation from the incandescent lamp pressure rod, they can withstand high vibration and temperature cycles, meeting airborne airworthiness requirements.

[0079] The character strips are fixed by bending and riveting, allowing for quick on-site replacement and enabling multiple function markings on the same switch, thus improving the panel's versatility.

[0080] The micro switch, lever, and spring are all guided along the same axis, resulting in precise triggering displacement, clear tactile feedback, and a lifespan of over 100,000 cycles.

[0081] A single press switches between electrical signals and light indicators, making operation intuitive and reducing the probability of pilot error.

[0082] With a highly integrated structure, its size is reduced by about 30% compared to traditional consumer products. It can directly replace existing audio panel switches without changing the mounting holes.

[0083] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A push-button switch that can be turned on or off by emitting an luminous signal, characterized in that, include: Button assembly, housing (1) and pin assembly, which are connected in sequence; The button assembly includes: a character plate (2), a character plate mounting base (3), a button housing (4), two incandescent lamps (5), a common terminal contact plate (6), a contact plate rivet (7), a connecting base (8), and two connecting base rivets (9). The pin assembly includes: a micro switch (10), a pin mounting base (11), a micro switch lever spring (12), a micro switch lever (13), a micro switch lever fixing plate (14), two incandescent lamp levers (15), two incandescent lamp lever springs (16), and two incandescent lamp lever fixing plates (17). in: The character piece (2) is pressed into the front and back fixing grooves of the button housing (4) by the deformation of the metal shell of the character piece fixing seat (3), forming a detachable and non-loosening planar marking structure; The common end contact (6) is riveted to the bottom of the button housing (4) by contact rivets (7), and its spring simultaneously presses the two incandescent lamps (5) into the corresponding mounting holes, forming a screwless elastic locking of the lamp body; The connecting seat (8) is hinged to both sides of the button housing (4) by two connecting seat rivets (9), forming a swing hinge that can rotate around the rivet axis, which is used to cooperate with the outer shell (1) to realize the travel limit of the button assembly; The micro switch (10) is inserted into the two mounting pins of the pin mounting base (11) through its own two mounting holes to form a threadless pin positioning; The micro switch lever spring (12) is sleeved on the micro switch lever (13) and together they are embedded in the middle mounting hole of the pin mounting base (11). The micro switch lever fixing piece (14) is inserted into the corresponding fixing groove so that the lever slides only along the axis. Two incandescent lamp pressure rod springs (16) are respectively fitted onto two incandescent lamp pressure rods (15) and embedded together into the mounting holes on both sides of the pin mounting base (11). Incandescent lamp pressure rod fixing pieces (17) are inserted into the corresponding fixing slots so that the pressure rods slide only along the axis. The pin assembly is inserted into the bottom of the housing (1), and the metal strips on both sides of the housing (1) are pressed into the positioning groove of the pin assembly to form a plug-in rigid connection; The notch of the connector (8) of the button assembly is aligned with the front of the housing (1) and the protruding buckle is pushed in. The spring piece on the back of the housing (1) is inserted into the limiting groove of the button housing (4) to complete the screwless snap assembly of the whole machine.

2. The push-button switch according to claim 1, characterized in that: The character piece (2) is a thin sheet, which is flat and attached to the upper surface of the character piece fixing seat (3). The outer metal shell of the character piece fixing seat (3) is bent and pressed into the rectangular fixing grooves on the front and back of the button shell (4) to form a replaceable flat marking structure for the character piece (2).

3. The push-button switch according to claim 1, characterized in that: The common terminal contact (6) is an "L" shaped conductive spring. Its vertical arm is riveted to the bottom of the button housing (4) by the contact rivet (7). The two springs of the horizontal arm press against the pins of the two incandescent lamps (5) respectively, forming an elastic locking of the lamp body and an electrical common terminal.

4. The push-button switch according to claim 1, characterized in that: The connecting seat (8) is a "U" shaped metal part with round holes on both sides. It is hinged to the cylindrical bosses on both sides of the button housing (4) via the connecting seat rivet (9), so that the connecting seat (8) can rotate around the rivet axis and is used to slide with the outer shell (1) protrusion.

5. The push-button switch according to claim 1, characterized in that: The micro switch (10) has a cuboid body with two circular mounting holes on the bottom surface. These holes are interference-fitted with the two cylindrical mounting pins on the top surface of the pin mounting base (11) to form a threadless vertical positioning.

6. The push-button switch according to claim 1, characterized in that: The micro switch lever (13) is a stepped shaft. Its large end is opposite to the drive handle of the micro switch (10). The small end is fitted with the micro switch lever spring (12) and then inserted into the middle circular guide hole of the pin mounting base (11). The micro switch lever fixing piece (14) is inserted laterally into the slot of the pin mounting base (11) to restrict the rotation of the lever and allow only axial sliding.

7. The push-button switch according to claim 1, characterized in that: The two incandescent lamp pressure rods (15) are the same stepped shaft. The shoulders of the shafts are respectively fitted with incandescent lamp pressure rod springs (16) and then inserted into the circular guide holes on both sides of the pin mounting seat (11). The incandescent lamp pressure rod fixing piece (17) is inserted laterally into the slot of the pin mounting seat (11), so that the pressure rod slides only along the axis and elastically presses against the bottom of the incandescent lamp (5).

8. The push-button switch according to claim 1, characterized in that: The pin mounting base (11) is a rectangular insulating block with multiple metal pins extending from the bottom surface and strip-shaped positioning grooves on both sides for insertion and positioning with the metal strips on both sides of the outer casing (1).

9. The push-button switch according to claim 1, characterized in that: The outer shell (1) is a rectangular metal shell with a wedge-shaped mounting buckle on the inner wall of the front and an elastic cantilever hook on the inner wall of the back. These hooks engage with the notch of the connecting seat (8) and the limiting groove of the button shell (4) respectively, forming a screwless closed shell structure.

10. The push-button switch according to claim 1, characterized in that: The outer wall of the button housing (4) is provided with an annular limiting groove. After the spring piece on the back of the outer shell (1) is inserted into the limiting groove, the axial travel of the button assembly relative to the outer shell (1) is constrained by the connecting seat (8), the rotation limit of the mounting buckle, and the spring piece slot, thereby realizing the mechanical limiting of button pressing and rebound.

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