A dual-mode switch box

Abstract

The present invention relates to the field of aerospace technology, and is a dual-mode switch box, comprising a shell, a mounting panel, a mounting base, a crank-connecting rod mechanism, a switch box assembly, a first electrical connector, a second electrical connector and a wire, wherein the first electrical connector, the switch box assembly and the second electrical connector are fixed on the mounting base in sequence from left to right, the shell is vertically fixed on the top surface of the mounting base, the shell has a cavity inside, the bottom edge of the shell is flush with the edge of the top surface of the mounting base, the mounting panel is vertically fixed on the top of the shell, the center of the mounting panel has an opening for the crank-connecting rod mechanism to move, the middle section of the crank-connecting rod mechanism is rotatably connected in the opening by rivets, the end of the crank-connecting rod mechanism is connected to the switch box assembly, the crank-connecting rod mechanism has a first protrusion, and the mounting panel has a second protrusion that limits the position of the first protrusion. The present invention has the advantages of small size and anti-misoperation.

Description

Technical Field

[0001] The present invention relates to the field of aerospace technology, and in particular to a dual-mode switch box. Background Art

[0002] Almost all existing switch boxes use electronic components, micro switches or combination circuits to realize the switching function of product status. In the field of aviation life-saving, electronic components and other electronic products are prone to physical structural damage under severe impact, overload voltage and high temperature environment, and product performance fluctuates or even fails. In addition, electronic components are greatly affected by the electromagnetic environment, which reduces the overall life of the product and affects the reliability of life-saving products. Summary of the invention

[0003] In order to solve the above problems, the present invention provides a dual-mode switch box, which has the advantages of small size, high reliability and anti-misoperation.

[0004] To achieve the above object, the technical solution adopted by the present invention is:

[0005] A dual-mode switch box comprises a shell, a mounting panel, a mounting base, a crank-connecting rod mechanism, a switch box assembly, a first electrical connector, a second electrical connector and a wire, wherein the first electrical connector, the switch box assembly and the second electrical connector are fixed on the mounting base in sequence from left to right, the shell is vertically fixed on the top surface of the mounting base, the shell has a cavity inside, the bottom edge of the shell is flush with the edge of the top surface of the mounting base, the mounting panel is vertically fixed on the top of the shell, the center of the mounting panel has an opening for the crank-connecting rod mechanism to move, the middle section of the crank-connecting rod mechanism is rotatably connected in the opening by rivets, the end of the crank-connecting rod mechanism is connected to the switch box assembly, the crank-connecting rod mechanism has a first protrusion, the mounting panel has a second protrusion that limits the position of the first protrusion, the crank-connecting rod mechanism is used to control the switch box assembly to switch the working states of the first electrical connector and the second electrical connector, and the switch box assembly is electrically connected to the first electrical connector and the second electrical connector respectively through wires.

[0006] Preferably, the crank-connecting rod mechanism comprises a handle, a nut, a spring, a fixing sleeve, a connecting rod, a lever, a push rod and a ring. The fixing sleeve is installed on the upper end of the connecting rod through a round nut. A spring is installed in the fixing sleeve. The handle is threadedly connected to the fixing sleeve. The lower end of the connecting rod is riveted to the upper end of the lever. The lower end of the lever is movably connected to the upper end of the push rod. A guide limiting groove is provided on the lever. The upper end of the push rod is connected to the guide limiting groove of the lever through a connecting piece. A spring is mounted on the middle section of the push rod, and a ring is fixed to the bottom of the push rod.

[0007] Preferably, the second protrusion is located on the fixing sleeve, and the butt ends of the first protrusion and the second protrusion respectively have inclined surfaces.

[0008] Preferably, the switch box assembly includes a switch box body, a terminal lug assembly, a shaft, a rotor assembly and a hexagonal nut, the rotor assembly is mounted on the shaft, the hexagonal nut is screwed and fixed to the switch box body, the terminal lug assembly is mounted on the switch box body by screws, and the rotor assembly includes an insulating rotor and a conductive contact piece.

[0009] Preferably, the installation base plate has a wire groove for passing the wires, and after the wires are laid, the wire groove is filled with potting glue.

[0010] Preferably, a light guide plate is also fixed on the installation panel.

[0011] The beneficial effects of using the present invention are as follows: the present invention sets a spring in the handle and the fixing sleeve, and limits the position of the handle by cooperating with the first protrusion on the fixing sleeve and the second protrusion on the mounting panel, so that when necessary, the handle is pulled up to drive the first protrusion on the fixing sleeve to shift with the second protrusion, and then the armrest is moved to change gears, and its switch box has good anti-misoperation performance; the internal structure of the present invention is compact, the volume is small, and the reliability is high; by setting a wire groove on the mounting base plate, the internal cable wiring is simple, and the wire groove is filled with potting glue after wiring, so as to improve the safety performance and anti-electromagnetic environment interference ability of the present invention; by setting a guide limit slide groove, the activity range and guidance of the crank connecting rod mechanism are controlled, so that the limit effect is achieved when the lever is tangent to the top rod; by setting a light guide plate to provide lighting display for the present invention, the working state can also be distinguished according to the luminous color. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the present invention;

[0013] Figure 2 It is a schematic diagram of the internal structure of the present invention;

[0014] Figure 3 for Figure 2 A magnified view of part A;

[0015] Figure 4 It is a schematic diagram of the assembly structure of the crank-connecting rod mechanism and the switch box assembly in the present invention;

[0016] Figure 5 A schematic diagram of the structure of the switch box assembly in the present invention;

[0017] Reference numerals include:

[0018] 1-housing, 2-mounting panel, 21-second protrusion, 3-mounting base plate, 4-crank-connecting rod mechanism, 41-handle, 42-fixing sleeve, 421-first protrusion, 43-connecting rod, 44-lever, 441-guide limiting slide groove, 45-top rod, 46-ring, 5-switch box assembly, 51-switch box body, 52-wiring piece assembly, 53-shaft, 54-rotor assembly, 55-hexagonal nut, 6-first electrical connector, 7-second electrical connector. DETAILED DESCRIPTION

[0019] The present invention is described in detail below with reference to the accompanying drawings.

[0020] like Figure 1-Figure 5 As shown, a dual-mode switch box includes a housing 1, a mounting panel 2, a mounting base 3, a crank connecting rod mechanism 4, a switch box assembly 5, a first electrical connector 6, a second electrical connector 7 and a wire. The mounting base 3 is fixed with the first electrical connector 6, the switch box assembly 5 and the second electrical connector 7 from left to right in sequence. The housing 1 is vertically fixed on the top surface of the mounting base 3. The housing 1 has a cavity inside. The bottom edge of the housing 1 is flush with the edge of the top surface of the mounting base 3. The mounting panel 2 is vertically fixed on the top of the housing 1. The center of the mounting panel 2 has An opening for the crank-connecting rod mechanism 4 to move, the middle section of the crank-connecting rod mechanism 4 is rotatably connected in the opening by rivets, the end of the crank-connecting rod mechanism 4 is connected to the switch box assembly 5, the crank-connecting rod mechanism 4 has a first protrusion 421, the mounting panel 2 has a second protrusion 21 to limit the position of the first protrusion 421, the crank-connecting rod mechanism 43 is used to control the switch box assembly 5 to switch the working states of the first electrical connector 6 and the second electrical connector 7, and the switch box assembly 5 is electrically connected to the first electrical connector 6 and the second electrical connector 7 respectively through wires.

[0021] The crank-connecting rod mechanism 4 includes a handle 41, a nut, a spring, a fixing sleeve 42, a connecting rod 43, a lever 44, a push rod 45 and a ring 46. The fixing sleeve 42 is installed on the upper end of the connecting rod 43 through a round nut. The fixing sleeve 42 is equipped with a spring. The handle 41 is threadedly connected to the fixing sleeve 42. The lower end of the connecting rod 43 is riveted to the upper end of the lever 44. The lower end of the lever 44 is movably connected to the upper end of the push rod 45. A guide limiting groove 441 is provided on the lever 44. The upper end of the push rod 45 is connected to the guide limiting groove 441 of the lever 44 through a connecting piece. When the lever 44 moves, the push rod 45 can move along the guide limiting groove 441. A spring is mounted on the middle section of the push rod 45, and a ring 46 is fixed to the bottom of the push rod 45.

[0022] After the top rod 45 passes through the spring and the shaft 53, the ring 46 and the shaft 53 are riveted together to form a movable rod that can be freely extended and rotated, and the connecting rod 43 and the lever 44 are riveted together by rivets, and then the connecting rod is riveted and fixed to the mounting panel 2 to form a fixed rod that can be freely rotated. The movable rod and the fixed rod are riveted together again, and the movable rod takes the shaft 53 as the center of the circle, and the fixed rod takes the riveted fixed point with the mounting panel 2 as the center of the circle, forming two intersecting circles, and the two intersection points are the limit structure points.

[0023] Then install the fixing sleeve 42 on the connecting rod 43, put the spring into the fixing sleeve 42, connect it with the threaded head of the connecting rod 43 with a nut, and finally screw the handle 41 to the fixing sleeve 42 to complete the installation of the entire crank-connecting rod mechanism.

[0024] The second protrusion 21 is located on the fixing sleeve 42, and the first protrusion 421 and the second protrusion 21 have inclined surfaces at their butt ends. When the handle 41 is pulled, the fixing sleeve 42 is lifted together, and the movement can be completed only when the two opposite inclined surfaces of the first protrusion 421 and the second protrusion 21 are offset.

[0025] The switch box assembly 5 comprises a switch box body 51, a terminal block assembly 52, a shaft 53, a rotor assembly 54 and a hexagonal nut 55. The rotor assembly 54 is mounted on the shaft 53. The hexagonal nut 55 is screwed and fixed to the switch box body 51. The terminal block assembly 52 is mounted on the switch box body 51 by screws. The rotor assembly 54 comprises an insulating rotor and a conductive contact piece. The rotor assembly 54 is mounted on the shaft 53 and inserted into the switch box body 51 from one side of the hexagonal nut 55. The hexagonal nut 55 is screwed and fixed to the switch box body 51. The switch box body 51 is then fixed to the mounting base plate 3 by screws. Finally, the terminal block assembly 52 is mounted on the switch box body 51 by screws. The rotor assembly 54 itself is made of insulating material. There is a conductive contact piece on the rotor. The terminal blocks on both sides are overlapped on the conductive contact piece to form a conductive structure. After the working state of the dual-mode switch box is switched, the terminal blocks are overlapped on the rotor insulating material to form a disconnected state.

[0026] The mounting base plate 3 has a wire groove for passing the wires, and the wire groove is filled with potting glue after the wires are laid. The first electrical connector 6 and the second electrical connector 7 are mounted on the mounting base plate 3, and then the switch box assembly 5 is pre-installed on the mounting base plate 3. According to the wiring relationship, the wires are pre-arranged and placed in the wire groove of the mounting base plate 3, and silicone rubber is used for filling and potting protection. Then the switch box assembly 5 is placed on the mounting base plate 3 to press the arranged wires under the switch box assembly 5. This structure can effectively arrange the wires and mechanical structures in layers to avoid the risk of mutual interference.

[0027] A light guide plate is also fixed on the mounting panel 2. The light guide plate is mounted on the mounting panel 2 and fixed by screws on the back of the light guide plate to ensure that the surface of the light guide plate is smooth and has no screw holes. The light guide plate provides lighting display for the present invention and can also distinguish the working status according to the luminous color.

[0028] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, many changes can be made in the specific implementation methods and application scopes based on the ideas of the present invention. As long as these changes do not deviate from the concept of the present invention, they all belong to the protection scope of the present invention.

Claims

1. A dual-mode switch box, characterized in that: The invention comprises a housing (1), a mounting panel (2), a mounting base (3), a crank connecting rod mechanism (4), a switch box assembly (5), a first electrical connector (6), a second electrical connector (7) and a wire, wherein the first electrical connector (6), the switch box assembly (5) and the second electrical connector (7) are fixed on the mounting base (3) in sequence from left to right, the housing (1) is vertically fixed on the top surface of the mounting base (3), the housing (1) has a cavity inside, the bottom edge of the housing (1) is flush with the edge of the top surface of the mounting base (3), the mounting panel (2) is vertically fixed on the top of the housing (1), and the center of the mounting panel (2) has a crank The connecting rod mechanism (4) has an opening in which the connecting rod mechanism (4) is movable, the middle section of the crank connecting rod mechanism (4) is rotatably connected in the opening via a rivet, the end of the crank connecting rod mechanism (4) is connected to the switch box assembly (5), the crank connecting rod mechanism (4) has a first protrusion (421), the mounting panel (2) has a second protrusion (21) for limiting the position of the first protrusion (421), the crank connecting rod mechanism (4) is used to control the switch box assembly (5) to switch the working state of the first electrical connector (6) and the second electrical connector (7), and the switch box assembly (5) is electrically connected to the first electrical connector (6) and the second electrical connector (7) respectively via wires; The crank-connecting rod mechanism (4) comprises a handle (41), a nut, a spring, a fixing sleeve (42), a connecting rod (43), a lever (44), a push rod (45) and a ring (46); the fixing sleeve (42) is mounted on the upper end of the connecting rod (43) through a nut; a spring is installed in the fixing sleeve (42); the handle (41) is threadedly connected to the fixing sleeve (42); the lower end of the connecting rod (43) is rivet-connected to the upper end of the lever (44); the lower end of the lever (44) is movably connected to the upper end of the push rod (45); a guide limiting sliding groove (441) is provided on the lever (44); the upper end of the push rod (45) is connected to the guide limiting sliding groove (441) of the lever (44) through a connecting piece; a spring is sleeved on the middle section of the push rod (45); and a ring (46) is fixed to the bottom of the push rod (45); The first protrusion (421) is located on the fixing sleeve (42), and the butt ends of the first protrusion (421) and the second protrusion (21) respectively have inclined surfaces; The switch box assembly (5) comprises a switch box body (51), a wiring piece assembly (52), a shaft (53), a rotor assembly (54) and a hexagonal nut (55); the rotor assembly (54) is mounted on the shaft (53); the hexagonal nut (55) is screwed and fixed to the switch box body (51); the wiring piece assembly (52) is mounted on the switch box body (51) by screws; and the rotor assembly (54) comprises an insulating rotor and a conductive contact piece.

2. The dual-mode switch box according to claim 1, characterized in that: The installation base plate (3) is provided with a wire groove for passing the wires, and after the wires are laid, the wire groove is filled with potting glue.

3. The dual-mode switch box according to claim 1, characterized in that: A light guide plate is also fixed on the installation panel (2).

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