Two-path signal neutral gear switch for automobile

Abstract

The utility model discloses a two-path signal neutral gear switch for an automobile, which comprises a switch shell, a plug assembly is arranged at the bottom end of the switch shell, a top rod is arranged at the top end of the switch shell, the plug assembly comprises a plug base and a plug assembly, and the plug assembly comprises four binding posts, a pair of static sheet supports, a pair of conductive springs and a double-plug moving sheet. A pair of binding posts is respectively connected with a static sheet support, a static sheet contact is installed on the static sheet support, the other pair of binding posts is respectively connected with a guide spring, a pair of red copper sheets and a pair of moving sheet contacts are arranged on the upper surface of the double-insertion moving sheet, a pair of conductive insertion rods are arranged on the lower surface of the double-insertion moving sheet, one end of each red copper sheet is connected with the corresponding moving sheet contact, and the other end of each conductive insertion rod is connected with the corresponding moving sheet contact. The other end of the red copper sheet is connected with the conductive insertion rod, the conductive insertion rod is connected with the top end of the conductive spring in an inserted mode, the movable sheet contact makes contact with the static sheet contact, the bottom end of the ejector rod is close to the upper surface of the double-insertion movable sheet, two paths of on-off signals which do not interfere with each other are sent out through communication of the pair of rigid contacts, and the situation of virtual connection of the contacts is avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of automobile parts, and relates to a signal neutral position switch, in particular to a 2-way signal neutral position switch for automobile. BACKGROUND

[0002] At present, most domestic commercial vehicles (especially the national six models) provide gear signals for the ECU only, and the neutral position switch has one output signal, so most mechanical neutral position switches have only one pair of contacts, and the structure is relatively simple, but now some models require the neutral position switch to output two independent on-off signals, when the vehicle is started, one signal is provided to the ECU for feedback gear state, and the other signal is connected to the starting relay for controlling the vehicle starting, and the neutral position switches on the market that meet the above requirements are all two pairs of rigidly connected contact structures, when the vehicle is in neutral position, the moving piece makes the two pairs of contacts rigidly connected under the action of the elastic force, and when the vehicle is in gear, the moving piece is separated from the static piece through the top rod, so that the two pairs of contacts are simultaneously disconnected to achieve the purpose of cutting off the current loop, and the rigid connection structure is easy to cause the contact to be virtually connected, resulting in unreliable contact of the contacts, and further causing poor contact of the signal neutral position switch. SUMMARY

[0003] In view of the deficiencies in the prior art, the utility model aims to provide a 2-way signal neutral position switch for automobile, which can solve the technical problem of unreliable contact of the contacts caused by virtual connection of the contacts, resulting in poor contact of the signal neutral position switch.

[0004] In order to solve the above technical problems, the utility model adopts the following technical scheme:

[0005] A 2-way signal neutral position switch for automobile, comprising a switch housing, a plug assembly is installed at the bottom end of the switch housing, a threaded column is integrally arranged at the top end of the switch housing, a guide hole is formed in the threaded column in the axial direction, and a top rod is movably arranged in the guide hole, characterized in that the plug assembly comprises a plug base with an open top end, a plug component is installed at the top end of the plug base, the top end of the plug base is inserted into the bottom end of the switch housing, and the plug component is arranged in the switch housing.

[0006] A circular boss is integrally arranged on the top end of the plug base, four wire column limiting grooves are formed on the upper surface of the circular boss in a cross arrangement.

[0007] The plug component comprises a first wire column, a second wire column, a third wire column and a fourth wire column which are respectively installed in the four wire column limiting grooves, and the bottom ends of the first wire column, the second wire column, the third wire column and the fourth wire column extend into the plug base through the bottom of the wire column limiting groove.

[0008] The first connecting post and the second connecting post are symmetrically arranged, the top end of the first connecting post is connected with a static sheet support, the top end of the third connecting post is connected with a conductive spring, the top of the pair of static sheet supports and the top of the pair of conductive springs are provided with double moving blades;

[0009] The lower surface of the top of the pair of static sheet supports is provided with a static sheet contact, the upper surface of the double moving blades is provided with a pair of copper sheets and a pair of moving blade contacts, the lower surface of the double moving blades is provided with a pair of conductive insertion rods, one end of each copper sheet is connected with one moving blade contact, the other end of each copper sheet is connected with one conductive insertion rod through a metal connecting piece, the pair of conductive insertion rods are respectively inserted into the top end of the conductive spring on the corresponding side, and the pair of moving blade contacts are in contact with the static sheet contacts on the corresponding side under the action of the conductive spring.

[0010] The top rod is coaxially arranged with the double moving blades, the top end of the top rod extends out of the threaded column through the guide through hole, and the bottom end of the top rod is close to the upper surface of the double moving blades.

[0011] The utility model discloses still include following technical features:

[0012] The static sheet support comprises an L-shaped vertical static sheet connecting arm, the bottom end of the vertical static sheet connecting arm is arranged in the connecting post limiting groove and connected with the first connecting post or the second connecting post, the top end of the vertical static sheet connecting arm is integrally connected with a horizontal static sheet connecting arm, the static sheet contact is installed on the lower surface of the horizontal static sheet connecting arm, and the pair of horizontal static sheet connecting arms are oppositely arranged.

[0013] The double moving blades comprise a moving blade body in the shape of a round sheet, four moving blade connecting arms are integrally connected to the circumferential outer wall of the moving blade body, the four moving blade connecting arms correspond to the four connecting post limiting grooves one by one, the pair of moving blade contacts are installed on the upper surfaces of the pair of moving blade connecting arms below the horizontal static sheet connecting arms, and the pair of conductive insertion rods are installed on the lower surfaces of the pair of moving blade connecting arms on the top of the conductive spring.

[0014] The bottom end of the top rod and the moving blade body are provided with a cylindrical bushing, the outer wall of the bushing is integrally provided with an annular flange in the circumferential direction, the bottom end of the top rod is provided with a coaxially arranged connecting seat, the end face of the connecting seat is provided with a groove, a circular through hole is formed in the middle of the moving blade body in the axial direction, the bottom end of the bushing passes through the circular through hole, the top end of the bushing abuts in the groove of the connecting seat, and the annular flange is in contact with the upper surface of the moving blade body.

[0015] The bushing spring is arranged between the circular boss and the moving piece body, the upper surface of the circular boss is provided with a bushing spring fixing seat, the bushing spring fixing seat comprises a limiting inner ring and a limiting outer ring which are coaxially arranged, the bottom end of the bushing spring is nested between the limiting inner ring and the limiting outer ring, and the top end of the bushing spring is sleeved on the bottom end of the bushing and abuts against the lower surface of the moving piece body.

[0016] The protective cap is sleeved on the circular boss, the bottom end of the protective cap is in contact with the upper surface of the circular boss, the top end of the protective cap is provided with a circular hole, and the top end of the protective cap is inserted into the switch shell and in contact with the top end inner wall of the switch shell.

[0017] The edge of the circular boss is provided with a pair of symmetrically arranged clamping columns, the top end outer side of the clamping column is integrally provided with a clamping pin, a pair of clamping holes corresponding to the clamping column are formed in the sidewall of the protective cap, and the clamping pin passes through the clamping hole to install the protective cap on the circular boss.

[0018] The top end of the bushing extends to the top end of the protective cap.

[0019] The switch shell and the protective cap are provided with a sealing gasket, a small hole for the top end of the bushing to extend is formed in the middle of the sealing gasket, one end of the sealing gasket is in contact with the top end surface of the protective cap, and the other end of the sealing gasket is clamped with a rectangular ring between the switch shell.

[0020] The circumferential outer side of the circular boss is sleeved with an O-shaped ring, and the O-shaped ring is in contact with the inner surface of the switch shell.

[0021] Compared with the prior art, the utility model has the following technical effects:

[0022] The utility model discloses a conductive spring realizes the flexible connection of a pair of line posts, improves the contact stability and reliability of the rigid contact of another pair of line posts, can send two-way non-interference on-off signals through the intercommunication of a pair of rigid contacts, avoids the occurrence of the virtual connection of the rigid contact, and further solves the problem of poor contact of the signal neutral switch. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is the overall structure schematic diagram of the utility model.

[0024] Figure 2 It is the plug assembly forward structure schematic diagram of the utility model.

[0025] Figure 3 It is the plug assembly rear view structure schematic diagram of the utility model.

[0026] Figure 4 It is the explosion drawing of the plug assembly of the utility model.

[0027] Figure 5 is the overall structure of the utility model.

[0028] The meaning of each reference numeral in the figure is as follows:

[0029] 1, switch shell, 2, plug assembly, 3, threaded column, 4, ejector pin, 5, bushing, 6, protective cap, 7, clamping column, 8, sealing gasket, 9, rectangular ring, 10, O-ring;

[0030] 21, plug base, 22, plug assembly, 23, circular boss, 24, terminal post limiting groove;

[0031] 221, No. 1 terminal post, 222, No. 2 terminal post, 223, No. 3 terminal post, 224, No. 4 terminal post, 225, static sheet support, 226, conductive spring, 227, double moving sheet, 228, red copper sheet;

[0032] 2251, vertical static sheet connecting arm, 2252, horizontal static sheet connecting arm, 2253, static sheet contact point;

[0033] 2271, moving sheet body, 2272, moving sheet connecting arm, 2273, moving sheet contact point, 2274, conductive insertion rod;

[0034] 41, connecting seat, 51, annular flange, 52, bushing spring, 53, limiting inner ring, 54, limiting outer ring, 61, bayonet, 71, bayonet pin.

[0035] The specific content of the utility model is further explained and described in detail in combination with the following embodiments. DETAILED DESCRIPTION

[0036] According to the above technical solution, the following specific embodiments of the utility model are given, and it should be noted that the utility model is not limited to the following specific embodiments, and any equivalent transformation based on the technical solution of the application falls within the protection scope of the utility model.

[0037] In the utility model, unless otherwise stated, the orientation words such as 'up', 'down', 'left', 'right' and the like are usually defined with the drawing surface in the corresponding drawing as the reference, 'inner' and 'outer' refer to the inner and outer of the corresponding component contour, and 'longitudinal', 'transverse' and'vertical' refer to the direction marked in the drawing.

[0038] Embodiment:

[0039] This embodiment gives a kind of 2-way signal empty gear switch for automobile, as shown in Figure 1: Figures 1 to 5As shown, including switch shell 1, the bottom end of switch shell 1 is provided with plug assembly 2, the top end of switch shell 1 is integrally provided with threaded column 3, threaded column 3 is provided with guide hole in the axial direction, guide hole is movably provided with top rod 4, plug assembly 2 includes plug base 21 with open bottom, plug base 21 is provided with plug assembly 22 at the top end, plug base 21 is inserted with the bottom end of switch shell 1, plug assembly 22 is arranged in switch shell 1;

[0040] The top end of plug base 21 is integrally provided with circular boss 23, the upper surface of circular boss 23 is provided with four wire column limiting grooves 24 arranged in cross;

[0041] Plug assembly 22 includes No. 1 wire column 221, No. 2 wire column 222, No. 3 wire column 223 and No. 4 wire column 224 respectively installed in four wire column limiting grooves, the bottom end of No. 1 wire column 221, No. 2 wire column 222, No. 3 wire column 223 and No. 4 wire column 224 extends to plug base 21 through the bottom of wire column limiting groove 24;

[0042] No. 1 wire column 221 and No. 2 wire column 222 are symmetrically arranged, the top end of No. 1 wire column 221 and No. 2 wire column 222 is respectively connected with one static sheet support 225, No. 3 wire column 223 and No. 4 wire column 224 are symmetrically arranged, the top end of No. 3 wire column 223 and No. 4 wire column 224 is respectively connected with one conductive spring 226, the top of one pair of static sheet supports 225 and the top of one pair of conductive springs 226 are provided with double moving blades 227;

[0043] The lower surface of the top of one pair of static sheet supports 225 is provided with one static sheet contact 2253, the upper surface of double moving blades 227 is provided with one pair of copper sheets 228 and one pair of moving blade contacts 2273, the lower surface of double moving blades 227 is provided with one pair of conductive insertion rods 2274, one end of each copper sheet 228 is connected with one moving blade contact 2273, the other end of each copper sheet 228 is connected with one conductive insertion rod 2274 through metal connecting piece, one pair of conductive insertion rods 2274 is respectively inserted with the top end of corresponding side conductive spring 226, one pair of moving blade contacts 2273 is in contact with corresponding side static sheet contact 2253 under the action of conductive spring 226;

[0044] Top rod 4 is coaxially arranged with double moving blades 227, the top end of top rod 4 extends out of threaded column 3 through guide hole, the bottom end of top rod 4 is close to the upper surface of double moving blades 227.

[0045] The first connecting post 221, the second connecting post 222, the third connecting post 223, the fourth connecting post 224, the static sheet support 225, the static sheet contact 2253, the red copper sheet 228, the dynamic sheet contact 2273, the conductive spring 226 and the conductive plug rod 2274 in the signal neutral position switch in the embodiment are all copper matrix materials, and the rest of the structures are non-metallic non-conductive materials. The static sheet support 225 connects the first connecting post 221 and the second connecting post 222 to the red copper sheet 228 through the static sheet contact 2253 and the dynamic sheet contact 2273. The conductive spring 226 connects the third connecting post 223 and the fourth connecting post 224 to the red copper sheet 228 through the conductive spring 226 and the conductive plug rod 2274. Two independent on-off circuits are formed inside the signal neutral position switch, and two-way non-interference on-off signals are provided to the whole vehicle through the connecting posts. When the vehicle is in the neutral position state, the double-insert dynamic sheet 227 is connected to the static sheet contact 2253 and the dynamic sheet contact 2273 under the action of the pair of conductive springs 226. The flow path of one-way current is: the first connecting post 221, the static sheet support 225, the static sheet contact 2253, the dynamic sheet contact 2273, the red copper sheet 228, the conductive plug rod 2274, the conductive spring 226, the fourth connecting post 224. The flow path of the other way current is: the second connecting post 222, the static sheet support 225, the static sheet contact 2253, the dynamic sheet contact 2273, the red copper sheet 228, the conductive plug rod 2274, the conductive spring 226, the third connecting post 223. When the vehicle is in the gear state, the top rod 4 moves along the guide through hole to the direction of the plug assembly 2 until the top end of the top rod 4 contacts the double-insert dynamic sheet 227 and pushes the double-insert dynamic sheet 227 downward as a whole, so that the dynamic sheet contact 2273 is disconnected from the static sheet contact 2253, and then the two current circuits inside the signal neutral position switch are disconnected at the same time. Whether the vehicle is in the neutral position state or in the gear state, the third connecting post 223 or the fourth connecting post 224 is always connected to the conductive plug rod 2274 through the conductive spring 226. The flexible connection of a pair of connecting posts is realized by using the conductive spring 226, the contact stability and reliability of the rigid contact of a pair of connecting posts are improved, two-way non-interference on-off signals can be sent only through the connection of a pair of rigid contacts, the situation of virtual connection of the rigid contact is avoided, and then the problem of poor contact of the signal neutral position switch is solved.

[0046] As a preferred arrangement of the embodiment, the static sheet support 225 in the embodiment comprises an L-shaped vertical static sheet connecting arm 2251, the bottom end of the vertical static sheet connecting arm 2251 is arranged in the terminal post limiting groove 24 and connected with the first terminal post 221 or the second terminal post 222, the top end of the vertical static sheet connecting arm 2251 is integrally connected with a horizontal static sheet connecting arm 2252, the static sheet contact 2253 is installed on the lower surface of the horizontal static sheet connecting arm 2252, and the pair of horizontal static sheet connecting arms 2252 are oppositely arranged. The structural arrangement of the static sheet support 225 can improve the stability of the static sheet support 225 in use, and can reduce the false connection condition of the rigid contact between the static sheet contact 2253 and the moving sheet contact 2273.

[0047] The double-insert moving sheet 227 comprises a disc-shaped moving sheet body 2271, four moving sheet connecting arms 2272 are integrally connected to the circumferential outer wall of the moving sheet body 2271, the four moving sheet connecting arms 2272 correspond to the four terminal post limiting grooves 24 one by one, a pair of moving sheet contacts 2273 are installed on the upper surfaces of a pair of moving sheet connecting arms 2272 located below the horizontal static sheet connecting arm 2252, and a pair of conductive insertion rods 2274 are installed on the lower surfaces of a pair of moving sheet connecting arms 2272 located on the top of the conductive spring 226. The structure of the double-insert moving sheet 227 can reduce the production cost while ensuring functionality.

[0048] As a preferred arrangement of the embodiment, a cylindrical bushing 5 is arranged between the bottom end of the top rod 4 and the moving sheet body 2271, an annular flange 51 is integrally arranged on the outer wall of the bushing 5 in the circumferential direction, a connecting seat 41 coaxially arranged is installed on the bottom end of the top rod 4, a groove is arranged on the end face of the connecting seat 41, a circular through hole is arranged in the middle of the moving sheet body 2271 in the axial direction, the bottom end of the bushing 5 penetrates through the circular through hole, the top end of the bushing 5 abuts in the groove of the connecting seat 41, and the annular flange 51 is in contact with the upper surface of the moving sheet body 2271. The annular flange 51 increases the force application area of the top rod 4 to the double-insert moving sheet 227, the bushing 5 keeps the top rod 4 in contact with the moving sheet body 2271 at all times, improves the connection stability of the top rod 4 and the double-insert moving sheet 227, ensures that the thrust acts on the center position of the double-insert moving sheet 227, makes the double-insert moving sheet 227 move horizontally as a whole relative to the plug base 21, and reduces the false connection probability when the static sheet contact 2253 and the moving sheet contact 2273 are in rigid contact.

[0049] As a preferred arrangement of the present embodiment, a bushing spring 52 is arranged between the circular boss 23 and the movable piece body 2271, a bushing spring fixing seat is arranged at the center of the upper surface of the circular boss 23, the bushing spring fixing seat comprises a limiting inner ring 53 and a limiting outer ring 54 arranged coaxially, the bottom end of the bushing spring 52 is nested between the limiting inner ring 53 and the limiting outer ring 54, the top end of the bushing spring 52 is sleeved at the bottom end of the bushing 5 and abuts against the lower surface of the movable piece body 2271, the bushing spring 52 exerts elastic force from the central position below the double movable piece 227, and forms a counteracting force with the pushing force of the top rod 4, thereby ensuring the stable movement of the double movable piece 227.

[0050] As a preferred arrangement of the present embodiment, a protective cap 6 is sleeved on the circular boss 23 in the present embodiment, the bottom end of the protective cap 6 is in contact with the upper surface of the circular boss 23, a circular hole is formed at the top end of the protective cap 6, and the top end of the protective cap 6 is inserted into the switch housing 1 and in contact with the inner wall at the top end of the switch housing 1.

[0051] A pair of symmetrically arranged clamping columns 7 are arranged at the edge of the circular boss 23, a clamping pin 71 is integrally arranged at the top end of the outer side of the clamping column 7, a pair of corresponding clamping holes 61 are formed on the sidewall of the protective cap 6, the clamping pin 71 passes through the clamping hole 61 to install the protective cap 6 on the circular boss 23, the top end of the bushing 5 protrudes out of the top end of the protective cap 6, the detachable structure of the protective cap 6 facilitates maintenance, and can prevent dirt such as dust and grease from entering the plug assembly 22, thereby affecting the normal operation of the signal neutral position switch.

[0052] Further, a sealing gasket 8 is arranged between the switch housing 1 and the protective cap 6 in the present embodiment, a small hole is formed in the middle of the sealing gasket 8 to allow the top end of the bushing to protrude out, thereby improving the protection of the plug assembly 22 by the protective cap 6, one end of the sealing gasket 8 is in contact with the top end surface of the protective cap 6, and the other end of the sealing gasket 8 clamps the rectangular ring 9 between the switch housing 1 and the protective cap 6, thereby improving the airtightness of the contact between the switch housing 1 and the protective cap 6.

[0053] As a preferred arrangement of the present embodiment, an O-shaped ring 10 is sleeved on the circumferential outer side of the circular boss 23, the O-shaped ring 10 is in contact with the inner surface of the switch housing 1, and the installation airtightness of the switch housing 1 and the plug base 21 is improved.

Claims

1. A two-way signal neutral position switch for automobile, comprising a switch housing (1), a plug assembly (2) is installed at the bottom end of the switch housing (1), a threaded column (3) is integrally arranged at the top end of the switch housing (1), a guide through hole is axially arranged in the threaded column (3), and a top rod (4) is movably arranged in the guide through hole, characterized in that, The plug assembly (2) comprises a plug base (21) with an open bottom end, a plug component (22) mounted on the top end of the plug base (21), and the top end of the plug base (21) is inserted into the bottom end of the switch housing (1), and the plug component (22) is arranged in the switch housing (1); The top end of the plug base (21) is integrally provided with a circular boss (23), and the upper surface of the circular boss (23) is provided with four wire post limiting grooves (24) arranged in a cross shape; The plug component (22) comprises a first wire post (221), a second wire post (222), a third wire post (223) and a fourth wire post (224) respectively mounted in the four wire post limiting grooves, and the bottom ends of the first wire post (221), the second wire post (222), the third wire post (223) and the fourth wire post (224) extend into the plug base (21) through the bottom of the wire post limiting groove (24); The first wire post (221) and the second wire post (222) are symmetrically arranged, the top ends of the first wire post (221) and the second wire post (222) are respectively connected with a static sheet support (225), the third wire post (223) and the fourth wire post (224) are symmetrically arranged, the top ends of the third wire post (223) and the fourth wire post (224) are respectively connected with a conductive spring (226), and the top portions of the pair of static sheet supports (225) and the top portions of the pair of conductive springs (226) are provided with a double moving blade (227); The lower surfaces of the top portions of the pair of static sheet supports (225) are respectively provided with a static sheet contact (2253), the upper surface of the double moving blade (227) is provided with a pair of copper sheets (228) and a pair of moving blade contacts (2273), the lower surface of the double moving blade (227) is provided with a pair of conductive insertion rods (2274), one end of each copper sheet (228) is connected with one of the moving blade contacts (2273), the other end of each copper sheet (228) is connected with one of the conductive insertion rods (2274) through a metal connecting piece, the pair of conductive insertion rods (2274) are respectively inserted into the top ends of the corresponding conductive springs (226), and the pair of moving blade contacts (2273) are in contact with the corresponding static sheet contacts (2253) under the action of the conductive springs (226); The top rod (4) is coaxially arranged with the double moving blade (227), the top end of the top rod (4) extends out of the threaded column (3) through the guide through hole, and the bottom end of the top rod (4) is close to the upper surface of the double moving blade (227).

2. The 2-way signal neutral switch for an automobile as recited in claim 1, characterized by The static sheet support (225) comprises an L-shaped vertical static sheet connecting arm (2251), the bottom end of the vertical static sheet connecting arm (2251) is arranged in the terminal post limiting groove (24) and is connected with the first terminal post (221) or the second terminal post (222), the top end of the vertical static sheet connecting arm (2251) is integrally connected with a horizontal static sheet connecting arm (2252), the static sheet contact (2253) is mounted on the lower surface of the horizontal static sheet connecting arm (2252), and the pair of horizontal static sheet connecting arms (2252) are oppositely arranged. The double moving sheet (227) comprises a circular sheet-shaped moving sheet body (2271), four moving sheet connecting arms (2272) are integrally connected to the circumferential outer wall of the moving sheet body (2271), the four moving sheet connecting arms (2272) correspond to the four terminal post limiting grooves (24) one by one, a pair of moving sheet contacts (2273) are mounted on the upper surfaces of a pair of moving sheet connecting arms (2272) located below the horizontal static sheet connecting arm (2252), and a pair of conductive insertion rods (2274) are mounted on the lower surfaces of a pair of moving sheet connecting arms (2272) located at the top of the conductive spring (226).

3. The 2-way signal neutral switch for an automobile according to claim 2, wherein The bottom end of the top rod (4) and the moving sheet body (2271) are provided with a cylindrical bushing (5), the outer wall of the bushing (5) is integrally provided with an annular flange (51) in the circumferential direction, the bottom end of the top rod (4) is mounted with a coaxially arranged connecting seat (41), the end face of the connecting seat (41) is provided with a groove, the middle part of the moving sheet body (2271) is provided with a circular through hole in the axial direction, the bottom end of the bushing (5) passes through the circular through hole, the top end of the bushing (5) abuts in the groove of the connecting seat (41), and the annular flange (51) is in contact with the upper surface of the moving sheet body (2271).

4. The 2-way signal neutral switch for an automobile according to claim 3, wherein The circular boss (23) and the moving sheet body (2271) are provided with a bushing spring (52), the center of the upper surface of the circular boss (23) is provided with a bushing spring fixing seat, the bushing spring fixing seat comprises a limiting inner ring (53) and a limiting outer ring (54) arranged coaxially, the bottom end of the bushing spring (52) is nested between the limiting inner ring (53) and the limiting outer ring (54), and the top end of the bushing spring (52) is sleeved on the bottom end of the bushing (5) and abuts against the lower surface of the moving sheet body (2271).

5. The 2-way signal neutral switch for an automobile as recited in claim 3, characterized by The circular boss (23) is sleeved with a protective cap (6), the bottom end of the protective cap (6) is in contact with the upper surface of the circular boss (23), the top end of the protective cap (6) is provided with a circular hole, and the top end of the protective cap (6) is inserted into the switch shell (1) and is in contact with the inner wall of the top end of the switch shell (1). The edge of the circular boss (23) is provided with a pair of symmetrically arranged clamping posts (7), the top end outer side of the clamping post (7) is integrally provided with a clamping pin (71), a pair of clamping holes (61) corresponding to the clamping post (7) are formed in the sidewall of the protective cap (6), and the clamping pin (71) passes through the clamping hole (61) to mount the protective cap (6) on the circular boss (23). The top end of the bushing (5) protrudes to the top end outside of the protective cap (6).

6. The 2-way signal neutral switch for an automobile as recited in claim 5, characterized by The sealing gasket (8) is provided between the switch shell (1) and the protective cap (6), a small hole is formed in the middle of the sealing gasket (8) to allow the top end of the bushing to protrude, one end of the sealing gasket (8) is attached to the top end surface of the protective cap (6), and the other end of the sealing gasket (8) is clamped with the rectangular ring (9) between the switch shell (1).

7. The 2-way signal neutral switch for an automobile as recited in claim 1, characterized by The circumferential outer side of the circular boss (23) is sleeved with an O-shaped ring (10), and the O-shaped ring (10) is attached to the inner surface of the switch shell (1).

Images