An onboard switch

Abstract

The present invention relates to the technical field of electrical switches, and discloses a board-mounted switch, including a control unit, a disassembly unit and a self-locking unit. The present invention is provided with a disassembly unit, and when disassembly is required, the unlocking plate is driven to move upward as a whole by a pressure rod, and the chamfer on the unlocking plate is squeezed with the surface of the extrusion block, thereby pushing the lifting plate to move outward, and the lifting plate drives the guide rod to slide inside the guide cover, and finally makes the end of the guide rod and the end of the guide inclined surface level with each other, and the pressure rod at this time can also drive the entire knob to have an upward movement trend, so the guide rod at this time moves along the guide inclined surface, and finally completes the separation of the guide rod and the positioning ring, and finally achieves the purpose of disassembly, and the disassembly only needs to pull the pressure rod, which is simpler to operate, and in the process of separating the knob and the positioning ring, the rotating rod will not be driven to rotate, and it can also ensure that the rotating rod is always in the current position, which improves the safety during the disassembly process.

Description

Technical Field

[0001] The invention belongs to the technical field of electrical switches, and in particular relates to a board-mounted switch. Background Art

[0002] An onboard switch usually refers to a switch directly mounted on a printed circuit board. It is used to control the on and off of a circuit, the switching of a signal, or various functional operations of a device. It is an important component of electronic devices to achieve human-computer interaction and functional control. It switches between different functions or gears by rotating a knob.

[0003] Traditional onboard switches generally use knobs to control the on and off of the switch, but the existing knob and onboard switch are connected together by bolts, which makes it inconvenient to disassemble later. In addition, during the disassembly process, the rotating rod and the knob of the onboard switch are connected with bolts, so the rotation of the bolts may drive the rotating rod to rotate, and the rotation of the rotating rod will cause the on and off state of the onboard switch to switch, which poses certain safety hazards to the entire circuit.

[0004] In view of this, the present invention is proposed. Summary of the invention

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0006] A board-mounted switch comprises a control unit, a disassembly unit and a self-locking unit.

[0007] The control unit comprises an onboard switch body, a rotating rod is installed at the driving end of the onboard switch body, a base plate is rotatably installed on the surface of the rotating rod, a flat plate is installed on the top of the rotating rod, a positioning cover is installed on the flat plate, a positioning rod is plugged on the positioning cover, a knob is rotatably installed on the base plate, the knob covers the flat plate, and the top of the positioning rod is clamped with the inner cavity of the knob, a positioning ring is installed on the base plate, the positioning ring is located above the flat plate, four groups of U-shaped grooves are opened on the side wall of the positioning ring, each group of the U-shaped grooves is slidably provided with a retractable guide rod, a guide cover is installed on the side wall of the guide rod, and the guide cover and the knob are connected to each other;

[0008] The disassembly unit comprises an unlocking plate, which is slidably arranged in the inner cavity of the positioning ring, a chamfer is provided at the edge of the unlocking plate, a pressure rod is installed on the unlocking plate, the pressure rod passes through the knob, a lifting plate is movably inserted at the end of the U-shaped groove, a sliding rod is installed at the end of the lifting plate, an extrusion block is installed at the end of the sliding rod, the side wall of the extrusion block corresponds to the chamfer, and the moving distance of the lifting plate is the same as the depth of the blocking surface opened at the end of the U-shaped groove, and a guiding inclined surface is provided at the end of the blocking surface;

[0009] The self-locking unit includes a side plate, which is slidably arranged on the flat plate, and the side plate is fitted with the chamfered surface at the bottom of the unlocking plate, and a limiting spring is connected between the side plate and the flat plate, and a clamping rod is installed at the bottom of the side plate, and the clamping rod corresponds to several pairs of clamping sleeves installed on the surface of the base plate, and each clamping sleeve is correspondingly arranged directly below the end of the U-shaped groove.

[0010] As a preferred embodiment of the present invention, locking screws are arranged around the substrate, and the locking screws are interconnected with the base of the fixed switch, a sealing cover is installed on the substrate, the sealing cover is in contact with the side wall of the knob, a protrusion is installed on the knob, and an anti-slip sleeve is installed on the protrusion.

[0011] As a preferred embodiment of the present invention, a positioning plate is slidably arranged inside the positioning cover, one end of the positioning plate is interconnected with the bottom of the positioning rod, a top plate is installed on the top of the positioning rod, the top plate is movably inserted in the positioning groove opened at the bottom of the knob, and a positioning spring is clamped between the other end of the positioning plate and the inner wall of the positioning cover, and the compression direction of the positioning spring and the moving direction of the positioning rod are both on the same vertical plane.

[0012] As a preferred embodiment of the present invention, four vertical poles are installed at the bottom of the positioning ring, and the bottoms of the four vertical poles are installed on the surface of the substrate, and the vertical poles are staggered on two adjacent flat plate gaps. A guide groove is opened on the positioning ring, and the guide groove is conical. The bottom of the guide groove is in contact with the disassembly groove opened on the side wall of the positioning ring, and the end of the disassembly groove is in contact with the guide inclined surface, and the depth of the disassembly groove is less than the depth of the U-shaped groove.

[0013] As a preferred embodiment of the present invention, the guide cover shell is equipped with a fixing seat, the fixing seat is welded in the inner cavity of the knob, the guide cover is movably connected to the guide rod, a guide spring is arranged inside the guide cover, the two ends of the guide spring are respectively clamped on the inner wall of the guide cover and the end face of the guide rod, and the moving distance of the guide rod inside the guide cover is greater than the length of the blocking surface.

[0014] As a preferred embodiment of the present invention, a limiting groove is provided at the bottom of the protrusion, a pressure plate is slidably arranged on the limiting groove, the bottom of the pressure plate is connected to the pressure rod, a compression spring is installed on the limiting groove, one end of the compression spring is clamped on the pressure plate, and the other end of the compression spring is clamped on the inner wall of the limiting groove.

[0015] As a preferred embodiment of the present invention, a vertical rod is installed on the pressure plate, the vertical rod is sleeved on the side wall of the compression spring, a drawing plate is installed on the top of the vertical rod, the drawing plate movably penetrates the protrusion, and a through hole is opened on the drawing plate located outside the protrusion.

[0016] As a preferred embodiment of the present invention, a reset cavity is opened on the inner wall of the positioning ring, and a reset plate is slidably arranged inside the reset cavity, the two ends of the reset plate are respectively connected to the extrusion block and the sliding rod, the extrusion block is chamfered, and a reset spring is sleeved on the side wall of the sliding rod, one end of the reset spring is clamped on the reset plate, and the other end is clamped on the side wall of the reset cavity.

[0017] As a preferred embodiment of the present invention, an insert plate is installed at the bottom of the side panel, the insert plate slides through a through groove opened on the flat plate, and a clamping rod is installed at the end of the insert plate, a connecting plate is installed on the side panel, the connecting plate is placed in the inner cavity of the positioning ring, and a guide roller is installed on the connecting plate, and the surface of the guide roller fits the chamfer.

[0018] As a preferred embodiment of the present invention, a slide plate is installed on the side panel, a limiting seat is installed on the flat plate, a limiting rod is installed on the limiting seat, the limiting rod is slidably connected to the slide plate, a limiting spring is sleeved on the limiting rod, one end of the limiting spring is clamped on the limiting seat, and the other end is clamped on the slide plate, a limiting plate is installed on the end of the limiting rod, and the diameter of the limiting plate is larger than the diameter of the limiting rod.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The present invention is provided with a disassembly unit. When the knob needs to be disassembled, the operator can pull the pressure rod, which drives the unlocking plate to move upward as a whole, and the chamfer on the unlocking plate will be squeezed with the surface of the extrusion block, thereby pushing the extrusion block, the sliding rod and the lifting plate to move outward, and the lifting plate drives the guide rod to slide toward the inside of the guide cover, and finally makes the end of the guide rod and the end of the guide inclined surface flush with each other, and at this time the pressure rod can also drive the entire knob to have an upward movement trend, so the guide rod at this time moves along the guide inclined surface, and finally completes the separation of the guide rod and the positioning ring, and finally achieves the purpose of disassembly, and disassembly only needs to pull the pressure rod, and the operation is simpler, and during the separation of the knob and the positioning ring, the rotating rod will not be driven to rotate, and it can also ensure that the rotating rod is always in the current position, that is, the state of the on-board switch body will not change, which further improves the safety during the disassembly process.

[0021] The present invention is provided with a self-locking unit. When the unlocking plate moves up for disassembly, the chamfer at the bottom of the unlocking plate and the side plate are separated as a whole. Then, under the action of the limit spring, the side plate moves toward the center, thereby driving the clamping rod to be inserted into the corresponding clamping sleeve, so that the clamping rod, the side plate and the flat plate can be connected with the base plate, thereby ensuring that the entire rotating rod is stationary. After the knob is disassembled, the state of the on-board switch body will not change, reducing the risk of accidental touch and making it safer to use.

[0022] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In the attached picture:

[0024] Figure 1 A schematic diagram of a three-dimensional structure of an onboard switch;

[0025] Figure 2 A bottom view of a substrate of a board-mounted switch;

[0026] Figure 3 A partial cross-sectional view of a board-mounted switch Figure 1 ;

[0027] Figure 4 For an on-board switch Figure 3 Enlarged view of point A in the middle;

[0028] Figure 5 A partial cross-sectional view of a board-mounted switch Figure 1 ;

[0029] Figure 6 For an on-board switch Figure 5 Enlarged view of point B in the middle;

[0030] Figure 7 A local structure of an onboard switch Figure 1 ;

[0031] Figure 8 For an on-board switch Figure 7 Enlarged view of point C in the middle;

[0032] Fig. 9 A local structure of an onboard switch Figure 2 .

[0033] In the figure:

[0034] 100, control unit; 101, onboard switch body; 102, substrate; 1021, sealing cover; 1022, locking screw; 103, knob; 1031, protrusion; 1032, positioning groove; 104, rotating rod; 1041, flat plate; 1042, positioning cover; 1043, positioning rod; 1044, positioning plate; 1045, positioning spring; 1046, top plate; 105, fixing seat; 1051, guide cover; 1052, guide rod; 1053, guide spring; 106, positioning ring; 1061, vertical rod; 1062, U-shaped groove; 1063, guiding inclined surface; 1064, blocking surface; 1065, disassembly groove; 1066, guide groove;

[0035] 200, disassembly unit; 201, unlocking plate; 2011, chamfer; 202, pressure rod; 2021, pressure plate; 2022, limit groove; 2023, compression spring; 203, pulling plate; 2031, vertical rod; 2032, through hole; 204, lifting plate; 2041, sliding rod; 2042, extrusion block; 2043, reset plate; 2044, reset spring; 2045, reset cavity;

[0036] 300, self-locking unit; 301, side plate; 3011, through groove; 3012, connecting plate; 3013, guide roller; 302, plug plate; 3021, clamping rod; 3022, clamping sleeve; 303, limit rod; 3031, limit plate; 3032, slide plate; 3033, limit spring; 3034, limit seat. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention. Example

[0038] like Figures 1 to 9 As shown, a board-mounted switch includes a control unit 100 , a disassembly unit 200 and a self-locking unit 300 .

[0039] The control unit 100 includes an onboard switch body 101, a rotating rod 104 is installed at the driving end of the onboard switch body 101, a substrate 102 is rotatably installed on the surface of the rotating rod 104, a flat plate 1041 is installed on the top of the rotating rod 104, a positioning cover 1042 is installed on the flat plate 1041, a positioning rod 1043 is inserted and arranged on the positioning cover 1042, a knob 103 is rotatably installed on the substrate 102, the knob 103 covers the flat plate 1041, and the top of the positioning rod 1043 is clamped with the inner cavity of the knob 103, a positioning ring 106 is installed on the substrate 102, the positioning ring 106 is located above the flat plate 1041, and four groups of U-shaped grooves 1062 are opened on the side wall of the positioning ring 106, each group of U-shaped grooves 1062 is slidably provided with a retractable guide rod 1052, a guide cover 1051 is installed on the side wall of the guide rod 1052, and the guide cover 1051 and the knob 103 are connected to each other;

[0040] The disassembly unit 200 includes an unlocking plate 201, which is slidably arranged in the inner cavity of the positioning ring 106, and a chamfer 2011 is provided at the edge of the unlocking plate 201. A pressure rod 202 is installed on the unlocking plate 201, and the pressure rod 202 passes through the knob 103. A lifting plate 204 is movably inserted at the end of the U-shaped groove 1062, and a sliding rod 2041 is installed at the end of the lifting plate 204. An extrusion block 2042 is installed at the end of the sliding rod 2041. The extrusion block 2042 is installed at the end of the extrusion block 2042. The side wall of the U-shaped groove 1042 corresponds to the chamfer 2011, and the moving distance of the lifting plate 204 is the same as the depth of the blocking surface 1064 opened at the end of the U-shaped groove 1062, and a guiding inclined surface 1063 is opened at the end of the blocking surface 1064; when the knob 103 needs to be disassembled, the operator can pull the pressure rod 202, and the pressure rod 202 drives the unlocking plate 201 to move upward as a whole, and the chamfer 2011 on the unlocking plate 201 will contact the surface of the extrusion block 2042. The lifting plate 204 drives the guide rod 1052 to slide toward the inside of the guide cover 1051, and finally makes the end of the guide rod 1052 and the end of the guide slope 1063 flush with each other. At this time, the pressure rod 202 can also drive the entire knob 103 to move upward, so the guide rod 1052 moves along the guide slope 1063 at this time, and finally completes the separation of the guide rod 1052 and the positioning ring 106, and finally achieves the purpose of disassembly. Therefore, when disassembling, you only need to pull the pressure rod 202, which is simpler to operate. In the process of separating the knob 103 and the positioning ring 106, the rotating rod 104 will not be driven to rotate, and the rotating rod 104 can be ensured to be always in the current position, that is, the state of the onboard switch body 101 will not change, which further improves the safety during the disassembly process.

[0041] The self-locking unit 300 includes a side plate 301, which is slidably set on the flat plate 1041, and the side plate 301 is in contact with the chamfered surface 2011 at the bottom of the unlocking plate 201, and a limiting spring 3033 is connected between the side plate 301 and the flat plate 1041, and a clamping rod 3021 is installed at the bottom of the side plate 301, and the clamping rod 3021 corresponds to several pairs of clamping sleeves 3022 installed on the surface of the base plate 102, and each clamping sleeve 3022 is correspondingly arranged directly below the end of the U-shaped groove 1062. When the unlocking plate 201 moves upward for disassembly, the chamfer 2011 at the bottom of the unlocking plate 201 and the side plate 301 are separated as a whole, and then under the action of the limit spring 3033, the side plate 301 moves toward the center, thereby driving the clamping rod 3021 to be inserted into the corresponding clamping sleeve 3022, so that the clamping rod 3021, the side plate 301 and the flat plate 1041 can be connected with the base plate 102, thereby ensuring that the entire rotating rod 104 is stationary, so that after the knob 103 is disassembled, the state of the onboard switch body 101 will not change, reducing the risk of accidental touch and making it safer to use.

[0042] like Figure 1 and Figure 2 As shown, in a specific embodiment, locking screws 1022 are arranged around the base plate 102, and the locking screws 1022 are interconnected with the base of the fixed switch, and the locking screws 1022 are used for installation to fix the device as a whole on the base, and a sealing cover 1021 is installed on the base plate 102, and the sealing cover 1021 and the side wall of the knob 103 are fitted together. The sealing cover 1021 prevents the existence of gaps during the rotation of the knob 103, thereby improving the aesthetics, and a protrusion 1031 is installed on the knob 103, and an anti-slip cover is installed on the protrusion 1031, and the knob 103 is conveniently rotated through the protrusion 1031.

[0043] like Figure 3 , Figure 4 , pictures and Figure 6 As shown, further, a positioning plate 1044 is slidably provided inside the positioning cover 1042, one end of the positioning plate 1044 is interconnected with the bottom of the positioning rod 1043, a top plate 1046 is installed on the top of the positioning rod 1043, the top plate 1046 is movably inserted in the positioning groove 1032 opened at the bottom of the knob 103, and a positioning spring 1045 is clamped between the other end of the positioning plate 1044 and the inner wall of the positioning cover 1042, and the compression direction of the positioning spring 1045 and the moving direction of the positioning rod 1043 are both in the same vertical plane. When the knob 103 moves downward as a whole, the positioning groove 1032 inside the knob 103 presses the entire positioning plate 1044 to move downward, and the positioning plate 1044 drives the bottom positioning rod 1043 to slide downward, and the positioning plate 1044 at the bottom of the positioning rod 1043 slides downward inside the positioning cover 1042, and the positioning spring 1045 inside the positioning cover 1042 is compressed, and the positioning spring 1045 is used to facilitate the subsequent resetting operation. Example

[0044] The difference between the above embodiment and this embodiment is that: Figure 7 and Figure 8 As shown, four vertical rods 1061 are installed at the bottom of the positioning ring 106, and the bottoms of the four vertical rods 1061 are installed on the surface of the base plate 102, and the vertical rods 1061 are staggered in the gaps between two adjacent flat plates 1041. A guide groove 1066 is opened on the positioning ring 106, and the guide groove 1066 is conical. The guide groove 1066 is convenient for the later installation of the guide rod 1052, and the guide rod 1052 is guided into the U-shaped groove 1062. The bottom of the guide groove 1066 is in contact with the disassembly groove 1065 opened on the side wall of the positioning ring 106, and the end of the disassembly groove 1065 is in contact with the guiding inclined surface 1063, and the depth of the disassembly groove 1065 is less than the depth of the U-shaped groove 1062.

[0045] like Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 8 As shown, further, a limiting groove 2022 is provided at the bottom of the protrusion 1031, a pressing plate 2021 is slidably provided on the limiting groove 2022, the bottom of the pressing plate 2021 is connected to the pressing rod 202, a compression spring 2023 is installed on the limiting groove 2022, one end of the compression spring 2023 is clamped on the pressing plate 2021, and the other end of the compression spring 2023 is clamped on the inner wall of the limiting groove 2022. A vertical rod 2031 is installed on the pressing plate 2021, the vertical rod 2031 is sleeved on the side wall of the compression spring 2023, a drawing plate 203 is installed on the top of the vertical rod 2031, the drawing plate 203 movably penetrates the protrusion 1031, and a through hole 2032 is provided on the drawing plate 203 located outside the protrusion 1031. When replacing the knob 103 of the onboard switch body 101 connected to the circuit, the operator can pull the pulling plate 203, and the pulling plate 203 drives the entire vertical rod 2031 to move upward, and the vertical rod 2031 drives the bottom pressure plate 2021 to move upward. At this time, the pressure plate 2021 can compress the compression spring 2023, and the compression spring 2023 has a downward force on the pressure plate 2021, and has an upward force on the knob 103 and the protrusion 1031 with the limiting groove 2022, and the upward movement of the pressure plate 2021 can drive the pressure rod 202 to move upward as a whole. Example

[0046] The difference between the above embodiment and this embodiment is that: Figure 3 and Figure 5As shown, a reset cavity 2045 is opened on the inner wall of the positioning ring 106, and a reset plate 2043 is slidably arranged inside the reset cavity 2045, and the two ends of the reset plate 2043 are respectively connected to the extrusion block 2042 and the slide rod 2041, the extrusion block 2042 is chamfered, and a reset spring 2044 is sleeved on the side wall of the slide rod 2041, and one end of the reset spring 2044 is clamped on the reset plate 2043, and the other end is clamped on the side wall of the reset cavity 2045. The outer shell of the guide cover 1051 is provided with a fixing seat 105, which is welded and arranged in the inner cavity of the knob 103. The guide cover 1051 is movably plugged with the guide rod 1052. A guide spring 1053 is arranged inside the guide cover 1051. The two ends of the guide spring 1053 are respectively clamped on the inner wall of the guide cover 1051 and the end surface of the guide rod 1052. The moving distance of the guide rod 1052 inside the guide cover 1051 is greater than the length of the blocking surface 1064. The pressure rod 202 can eventually drive the bottom unlocking plate 201 to slide upward, and the chamfer 2011 above the unlocking plate 201 can be squeezed with the squeezing block 2042. At this time, the squeezing block 2042 can drive the sliding rod 2041 to slide in the reset cavity 2045, and the reset plate 2043 on the sliding rod 2041 squeezes the reset spring 2044, so that the reset spring 2044 can be easily reset later. After the sliding rod 2041 and the squeezing block 2042 are squeezed and slid by the unlocking plate 201, the lifting plate 204 is driven to move outward, and the lifting plate 204 can squeeze the guide rod 1052 to move. At this time, the guide rod 1052 moves toward the inside of the guide cover 1051, thereby compressing the guide spring 1053. The compressed guide spring 1053 is convenient for later resetting. As the lifting plate 204 moves, the lifting plate 204 finally drives the end of the guide rod 1052 to move to the initial end of the guide slope 1063. However, at this time, the knob 103 and the protrusion 1031 have a downward force under the action of the compression spring 2023, and then the guide rod 1052 can slide along the guide slope 1063, and as the guide slope 1063 moves to the disassembly groove 1065, it is finally completely separated from the positioning ring 106 through the guide groove 1066, and the disassembly operation is finally completed.

[0047] like Figure 3 , Figure 5 and Fig. 9As shown, in a specific embodiment, an insert plate 302 is installed at the bottom of the side panel 301, and the insert plate 302 slides through the through groove 3011 opened on the flat plate 1041, and a clamping rod 3021 is installed at the end of the insert plate 302, and a connecting plate 3012 is installed on the side panel 301, and the connecting plate 3012 is placed in the inner cavity of the positioning ring 106, and a guide roller 3013 is installed on the connecting plate 3012, and the surface of the guide roller 3013 fits with the chamfer 2011. A slide plate 3032 is installed on the side plate 301, a limiting seat 3034 is installed on the flat plate 1041, a limiting rod 303 is installed on the limiting seat 3034, the limiting rod 303 is slidably connected to the slide plate 3032, a limiting spring 3033 is sleeved on the limiting rod 303, one end of the limiting spring 3033 is clamped on the limiting seat 3034, and the other end is clamped on the slide plate 3032, a limiting plate 3031 is installed at the end of the limiting rod 303, and the diameter of the limiting plate 3031 is larger than the diameter of the limiting rod 303. When the unlocking plate 201 moves up, the connecting plate 3012 and the guide roller 3013 on the side plate 301 are separated from the chamfer 2011 at the bottom of the unlocking plate 201. At this time, the side plate 301 is in an unlocked state, and then the side plate 301 equipped with the slide plate 3032 is driven to slide outward by the limit spring 3033, and the slide plate 3032 moves along the limit rod 303, thereby achieving the purpose of limiting. The limit plate 3031 limits the maximum distance of the slide plate 3032 to reduce the occurrence of derailment. After the side plate 301 moves, the plug plate 302 at the bottom of the side plate 301 can slide in the through groove 3011, and the plug plate 302 drives the clamping rod 3021 to move to the specified clamping sleeve 3022, thereby completing the locking operation of the clamping rod 3021.

[0048] The implementation principle of an onboard switch of this embodiment is as follows:

[0049] When the onboard switch of the present invention is in use, the operator can first press the protrusion 1031 and the knob 103, and the knob 103 moves downward as a whole. The positioning groove 1032 inside the knob 103 presses the entire positioning plate 1044 to move downward, and the positioning plate 1044 drives the bottom positioning rod 1043 to slide downward, and the positioning plate 1044 at the bottom of the positioning rod 1043 slides downward inside the positioning cover 1042, and the positioning spring 1045 inside the positioning cover 1042 is compressed, and the positioning spring 1045 is used to facilitate the subsequent resetting operation.

[0050] When the knob 103 moves downward, the knob 103 drives the fixing seat 105 at the bottom to move downward, and the fixing seat 105 drives the guide cover 1051 and the guide rod 1052 to slide downward, and the guide rod 1052 moves to the bottom along the U-shaped groove 1062. At this time, the operator can turn the knob 103, and the knob 103 drives the plate 1041 to rotate through the positioning rod 1043 and the positioning cover 1042, and the plate 1041 drives the entire rotating rod 104 to rotate, wherein the rotating rod 104 is connected to the on-board switch body 101, and then the opening and closing of the on-board switch body 101 can be controlled, and when the guide rod 1052 moves to the U-shaped groove 1062, the entire knob 103 is bounced upward by the positioning spring 1045, and the guide rod 1052 is reinserted into the vertical surface of the U-shaped groove, thereby achieving the purpose of locking and making the operation safer.

[0051] When it is necessary to replace the knob 103 of the onboard switch body 101 connected to the circuit, the operator can pull the pulling plate 203, and the pulling plate 203 drives the entire vertical rod 2031 to move upward, and the vertical rod 2031 drives the bottom pressure plate 2021 to move upward. At this time, the pressure plate 2021 can compress the compression spring 2023, and the compression spring 2023 has a downward force on the pressure plate 2021, and has an upward force on the knob 103 and the protrusion 1031 with the limiting groove 2022, and the upward movement of the pressure plate 2021 can drive the pressure rod 202 to move upward as a whole.

[0052] The pressure rod 202 can eventually drive the bottom unlocking plate 201 to slide upward, and the chamfer 2011 above the unlocking plate 201 can be squeezed by the squeezing block 2042. At this time, the squeezing block 2042 can drive the sliding rod 2041 to slide in the reset cavity 2045. The reset plate 2043 on the sliding rod 2041 squeezes the reset spring 2044, making it convenient for the reset spring 2044 to perform a reset operation later. After the sliding rod 2041 slides, it drives the lifting plate 204 to move outward, and the lifting plate 204 can squeeze the guide rod 1052 to move. At this time, the guide rod 1052 moves toward the inside of the guide cover 1051, and then compresses the guide spring 1053. The compressed guide spring 1053 is convenient for later resetting. As the lifting plate 204 moves, the lifting plate 204 finally drives the end of the guide rod 1052 to move to the initial end of the guide slope 1063. However, at this time, the knob 103 and the protrusion 1031 have a downward force under the action of the compression spring 2023, and then the guide rod 1052 can slide along the guide slope 1063, and move to the disassembly groove 1065 as the guide slope 1063, and finally through the guide groove 1066 to make it completely separated from the positioning ring 106, and finally complete the disassembly operation. When the knob 103 is reinstalled at a later time, it is only necessary to align the guide rod 1052 with the guide groove 1066 , and the guide rod 1052 can be moved to a designated track through the guidance of the guide groove 1066 .

[0053] When the unlocking plate 201 moves up, the connecting plate 3012 and the guide roller 3013 on the side plate 301 are separated from the chamfer 2011 at the bottom of the unlocking plate 201. At this time, the side plate 301 is in an unlocked state. At this time, the side plate 301 with the slide plate 3032 installed is driven to slide outward by the limit spring 3033, and the slide plate 3032 moves along the limit rod 303 to achieve the purpose of limiting. The limit plate 3031 limits the maximum distance of the slide plate 3032 to reduce the occurrence of derailment, and the side plate 301 After the movement, the plug plate 302 at the bottom of the side plate 301 can slide in the through groove 3011, and the plug plate 302 drives the clamping rod 3021 to move into the designated clamping sleeve 3022, thereby completing the locking operation of the clamping rod 3021, so that the clamping rod 3021, the side plate 301 and the flat plate 1041 can be connected together with the base plate 102, thereby ensuring that the entire rotating rod 104 is stationary, so that after the knob 103 is removed, the state of the onboard switch body 101 will not change, reducing the danger caused by accidental touch, and making it safer to use. And when the knob is reinstalled later, the chamfer 2011 on the unlocking plate 201 at this time squeezes the guide roller 3013, thereby completing the unlocking operation.

Claims

1. A board-mounted switch, comprising a control unit (100), a disassembly unit (200) and a self-locking unit (300), characterized in that: The control unit (100) comprises an onboard switch body (101), a rotating rod (104) is mounted on the driving end of the onboard switch body (101), a substrate (102) is rotatably mounted on the surface of the rotating rod (104), a flat plate (1041) is mounted on the top of the rotating rod (104), a positioning cover (1042) is mounted on the flat plate (1041), a positioning rod (1043) is plugged into the positioning cover (1042), a knob (103) is rotatably mounted on the substrate (102), and the knob (103) covers the flat plate. (1041), and the top of the positioning rod (1043) is clamped with the inner cavity of the knob (103), a positioning ring (106) is installed on the base plate (102), the positioning ring (106) is located above the plate (1041), the side wall of the positioning ring (106) is provided with four groups of U-shaped grooves (1062), each group of the U-shaped grooves (1062) is slidably provided with a retractable guide rod (1052), the side wall of the guide rod (1052) is provided with a guide cover (1051), and the guide cover (1051) and the knob (103) are connected to each other; The positioning ring (106) is provided with a guide groove (1066), the guide groove (1066) is tapered, the bottom of the guide groove (1066) is in contact with a disassembly groove (1065) provided on the side wall of the positioning ring (106), the end of the disassembly groove (1065) is in contact with the guide inclined surface (1063), and the depth of the disassembly groove (1065) is less than the depth of the U-shaped groove (1062); The disassembly unit (200) comprises an unlocking plate (201), the unlocking plate (201) is slidably arranged in the inner cavity of the positioning ring (106), a chamfer (2011) is provided at the edge of the unlocking plate (201), a pressure rod (202) is installed on the unlocking plate (201), the pressure rod (202) passes through the knob (103), a lifting plate (204) is movably inserted at the end of the U-shaped groove (1062), a sliding rod (2041) is installed at the end of the lifting plate (204), an extrusion block (2042) is installed at the end of the sliding rod (2041), a side wall of the extrusion block (2042) corresponds to the chamfer (2011), and a moving distance of the lifting plate (204) is the same as the depth of a blocking surface (1064) provided at the end of the U-shaped groove (1062), and a guiding inclined surface (1063) is provided at the end of the blocking surface (1064); The self-locking unit (300) comprises a side plate (301), the side plate (301) being slidably arranged on the flat plate (1041), and the side plate (301) being in contact with the chamfered surface (2011) at the bottom of the unlocking plate (201), and a limit spring (3033) being connected between the side plate (301) and the flat plate (1041), and a clamping rod (3021) being installed at the bottom of the side plate (301), the clamping rod (3021) corresponding to a plurality of pairs of clamping sleeves (3022) installed on the surface of the base plate (102), and each clamping sleeve (3022) being correspondingly arranged directly below the end of the U-shaped groove (1062).

2. The onboard switch according to claim 1, characterized in that: The base plate (102) is provided with locking screws (1022) around its periphery, and the locking screws (1022) are interconnected with a base body that fixes the switch; a sealing cover (1021) is installed on the base plate (102); the sealing cover (1021) and a side wall of the knob (103) are fitted together; a protrusion (1031) is installed on the knob (103); and an anti-slip sleeve is installed on the protrusion (1031).

3. The onboard switch according to claim 1, characterized in that: A positioning plate (1044) is slidably arranged inside the positioning cover (1042), one end of the positioning plate (1044) is interconnected with the bottom of the positioning rod (1043), a top plate (1046) is installed on the top of the positioning rod (1043), and the top plate (1046) is movably inserted into a positioning groove (1032) provided at the bottom of the knob (103), and a positioning spring (1045) is clamped between the other end of the positioning plate (1044) and the inner wall of the positioning cover (1042), and the compression direction of the positioning spring (1045) and the moving direction of the positioning rod (1043) are both on the same vertical plane.

4. The onboard switch according to claim 1, characterized in that: Four vertical rods (1061) are installed at the bottom of the positioning ring (106), the bottoms of the four vertical rods (1061) are installed on the surface of the base plate (102), and the vertical rods (1061) are staggeredly arranged in the gaps between two adjacent flat plates (1041).

5. The onboard switch according to claim 1, characterized in that: The outer shell of the guide cover (1051) is provided with a fixing seat (105), the fixing seat (105) is welded and arranged in the inner cavity of the knob (103), the guide cover (1051) is movably plugged with the guide rod (1052), a guide spring (1053) is arranged inside the guide cover (1051), two ends of the guide spring (1053) are respectively clamped on the inner wall of the guide cover (1051) and the end face of the guide rod (1052), and the moving distance of the guide rod (1052) inside the guide cover (1051) is greater than the length of the blocking surface (1064).

6. The onboard switch according to claim 2, characterized in that: A limiting groove (2022) is provided at the bottom of the protrusion (1031), a pressure plate (2021) is slidably arranged on the limiting groove (2022), the bottom of the pressure plate (2021) is connected to the pressure rod (202), a compression spring (2023) is installed on the limiting groove (2022), one end of the compression spring (2023) is clamped on the pressure plate (2021), and the other end of the compression spring (2023) is clamped on the inner wall of the limiting groove (2022).

7. The onboard switch according to claim 6, characterized in that: A vertical rod (2031) is mounted on the pressure plate (2021), the vertical rod (2031) is sleeved on the side wall of the compression spring (2023), a drawing plate (203) is mounted on the top of the vertical rod (2031), the drawing plate (203) movably penetrates the protrusion (1031), and a through hole (2032) is provided on the drawing plate (203) located outside the protrusion (1031).

8. The onboard switch according to claim 1, characterized in that: A reset cavity (2045) is provided on the inner wall of the positioning ring (106), and a reset plate (2043) is slidably arranged inside the reset cavity (2045), the two ends of the reset plate (2043) are respectively connected to the extrusion block (2042) and the slide bar (2041), the extrusion block (2042) is chamfered, and a reset spring (2044) is sleeved on the side wall of the slide bar (2041), one end of the reset spring (2044) is clamped on the reset plate (2043), and the other end is clamped on the side wall of the reset cavity (2045).

9. The onboard switch according to claim 1, characterized in that: An inserting plate (302) is installed at the bottom of the side plate (301), the inserting plate (302) slides through a through slot (3011) provided on the flat plate (1041), and a clamping rod (3021) is installed at the end of the inserting plate (302), a connecting plate (3012) is installed on the side plate (301), the connecting plate (3012) is placed in the inner cavity of the positioning ring (106), and a guide roller (3013) is installed on the connecting plate (3012), and the surface of the guide roller (3013) is in contact with the chamfer (2011).

10. The onboard switch according to claim 1, characterized in that: A slide plate (3032) is mounted on the side plate (301), a limit seat (3034) is mounted on the plate (1041), a limit rod (303) is mounted on the limit seat (3034), the limit rod (303) is slidably connected to the slide plate (3032), a limit spring (3033) is sleeved on the limit rod (303), one end of the limit spring (3033) is clamped on the limit seat (3034), and the other end is clamped on the slide plate (3032), a limit plate (3031) is mounted on the end of the limit rod (303), and the diameter of the limit plate (3031) is larger than the diameter of the limit rod (303).

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