CN206349285U - A kind of auxiliary bullet formula waterproof rotary switch - Google Patents

Abstract

The utility model discloses a kind of auxiliary bullet formula waterproof rotary switch, including switch outer cover and knob, switch outer cover sidewall is provided with the switch cavity of outwardly convex, switch cavity and is provided with safety switch assembly, and safety switch assembly includes housing and shift knob；Shift knob includes movable contact, keep set, elastic component, press splenium and silica gel leather cup, silica gel leather cup includes quarrel portion, chassis portion, accommodating chamber and breath oral area, when pressing splenium and not extruded by external force, elastic component applies to silica gel leather cup pulls power, drawing quarrel portion makes breath oral area be squeezed into holding set, breath oral area mutually extrudes and closes accommodating chamber, can be completely isolated by the first cavity volume and accommodating chamber, first binding post is closed, effectively prevent steam from entering in the first cavity volume, the first binding post and the second binding post is set to be in complete off-state, waterproof and the aging of non-moisture-sensitive, security performance is high.

Description

A kind of auxiliary bullet formula waterproof rotary switch

Technical field

The utility model is related to circuit control device, and it is a kind of auxiliary bullet formula waterproof rotary switch.

Background technology

Switch be for control connecting and disconnecting of the circuit electricity device, but be due to switch in lie substantially in the state of energization (i.e. Voltage is maintained on live wire), therefore electricity is left when the circuit in switch not used time, switch remains unchanged, when liquid access switch, by In still maintaining voltage on live wire, the moment that liquid enters makes the short circuit in switch, causes electrical equipment or switch to burn, deposits In higher safety issue.

Meanwhile, if switch for a long time in the higher environment of steam, steam is by the aging of circuit in acceleration switch And oxidation, cause switch control failure.

Therefore how to prevent the circuit in liquid or moisture switch is a urgent problem to be solved.

Utility model content

Utility model purpose of the present utility model is to provide for a kind of auxiliary bullet formula waterproof rotary switch, waterproof and be difficult by Damp aging, security performance is high.

In order to realize above-mentioned utility model purpose, the utility model employs following technical scheme：A kind of auxiliary bullet formula waterproof Rotary switch, including switch outer cover and knob, the knob are socketed on switch outer cover inwall, the switch outer cover sidewall be provided with to Safety switch assembly is provided with the switch cavity of outer lug, the switch cavity,

The safety switch assembly includes housing and shift knob；

- the shift knob includes movable contact, presses the silica gel leather cup that splenium and movable telescopic reset, and presses splenium and is located at Outside housing, press splenium and moved back and forth with respect to housing, press between splenium and housing provided with the elastic component for making to press splenium reset, the silicon Rubber bowl presses the relative movable contact end of splenium positioned at same；

- the housing is provided with the first binding post in the first cavity volume and the second cavity volume, housing provided with parallel installation and the Two binding posts, the first binding post end is provided with the first contact site, and the first contact site is in the first cavity volume；Second terminals Sub- end is located in the second cavity volume provided with second connecting portion, second connecting portion is electrically connected with movable contact, movable contact and silica gel Leather cup is respectively positioned in the second cavity volume；

- silica gel leather cup includes the chassis portion of plate-like and the quarrel portion of tubulose, periphery and the inner walls phase in the chassis portion Fixed, provided with the accommodating chamber for accommodating movable contact in the middle part of the quarrel portion, quarrel portion is connected and synchronizing moving with pressing splenium, institute The junction for stating chassis portion and quarrel portion is provided with the breath oral area that accommodating chamber is opened and closed with the activity of silica gel leather cup, the chassis portion, quarrel Portion and breath oral area are integrally formed setting；

It is additionally provided with-the housing for increasing the holding set of breath oral area seal, the holding set is fixed in housing Portion, the holding set is annular external member, keeps set longitudinal section L-shaped, keeps set to include sleeve and keeps bottom plate, the quarrel Portion's slip cap is in sleeve；When shift knob is not restored to the original state by external force, the breath oral area is in sleeve and keeps bottom plate to hand over Extruded at boundary and close accommodating chamber, the thickness of the breath oral area is more than the wall thickness in quarrel portion；

When knob makes the extruding of pushing projection press splenium, elastic component is compressed, and is pressed splenium and is driven quarrel portion to housing Medial movement, presses splenium and inwardly extrudes silica gel leather cup, quarrel portion moves inward and extrudes chassis portion and deforms laterally, breath oral area with Movement is opened laterally in chassis portion, is connected between accommodating chamber and the first cavity volume and is passed through movable contact, movable contact front end is supported The first contact site is pressed in, second connecting portion, movable contact and the first contact site are electrically connected successively, switch is in connected state；

When knob makes pushing projection depart from the contact with pressing splenium, silica gel leather cup and elastic component do not stress, in elasticity Under the elastic recoil effect of part and silica gel leather cup, splenium is pressed by elastic component resilience and pulls quarrel portion and moves laterally, quarrel Portion drives movable contact to be together displaced outwardly, movable contact and the first contact portion from；And oral area is ceased by outside to be recovered to original Position, when ceasing oral area and entering in sleeve due to being pullled by splenium is pressed, the closed power of the extruding closing of breath oral area is bigger, ceases mouth The passage that portion extrudes and closes accommodating chamber between the first cavity volume, switch is off.

It is preferred that, the guiding conical plate for chassis portion movement and deformation laterally, the guide cone are additionally provided with the housing Plate is tapered, and guiding conical plate is located between the first cavity volume and the second cavity volume, is provided with what is passed through for movable contact in the middle part of guiding conical plate Through hole, the through hole connects the first cavity volume and the second cavity volume.

It is preferred that, the angle of the cone angle of the guiding conical plate is 130 ° -160 °.

It is preferred that, the junction of the chassis portion and inner walls is provided with the fold for occurring more large deformation amount for chassis portion Ring, the fold ring in a ring wavy, the fold ring is integrally formed setting with chassis portion.

It is preferred that, the movable contact includes offering in contact end and conductive contact bar portion, the silica gel leather cup Bar portion lock chamber and end lock chamber, the end lock chamber are located at the silica gel leather cup side pressed where splenium, and contact bar portion is consolidated Due in bar portion lock chamber, contact end is fixed in the lock chamber of end.

It is preferred that, the first contact site of first binding post uses memory alloy material, and the first contact site includes end Portion, the arc contact portion contacted for same movable contact and heating make the kink that arc contact portion is separated with movable contact；The end Portion is located at the two ends of the first contact site and fixed with enclosure interior, and the bending part is between arc contact portion and end.

It is preferred that, the sleeve and the perpendicular setting of holding bottom plate；The perpendicular setting in chassis portion and quarrel portion.

It is preferred that, the pushing projection is in cambered surface, presses splenium and is provided with arc groove, the arc towards the one side for pushing projection Connected in star is engaged with pushing projection.

It is preferred that, the switch outer cover is altogether provided with 3 safety switch assemblies, and the safety switch assembly is all along switch outer cover To evenly distributed.

Compared with prior art, the auxiliary bullet formula waterproof rotary switch of above-mentioned technical proposal is employed, with following beneficial effect Really：

First, using auxiliary bullet formula waterproof rotary switch of the present utility model, the periphery in the chassis portion in safety switch assembly with Inner walls connect, can be effectively completely isolated by the first cavity volume and the second cavity volume of housing, and steam only can from housing with The junction in quarrel portion enters in the second cavity volume, it is impossible to enter the first cavity volume, effectively prevents steam or liquid from entering the first wiring In terminal and its first contact site, increase the protection to the first binding post, the isolation completely of the circuit in rotary switch is come, Ensure before shift knob is pressed, rotary switch circuit is in absolute off-state, the first contact site is in completely enclosed state. Therefore, when pressing splenium ejection, rotary switch is safe, liquidproof anti-steam, is hardly damaged and aging.

2nd, because movable contact is fixed on inside silica gel leather cup, movable contact in use it is possible that slight crack, Steam is possible to the gap of the inwall with movable contact Yu quarrel portion and entered in accommodating chamber, now ceases oral area in silica gel leather cup resilience When, from chassis portion into quarrel portion moving process, the accommodating chamber where movable contact is completely closed, accommodating chamber is connect with first The first cavity volume where contact portion completely cuts off completely, and entering accommodating chamber even if steam can also be stopped by breath oral area so that whole safety open Close component and be in the state disconnected.Only external force promotes and presses splenium, movable contact is moved forward and contacts the first contact site so that opens The internal circuit connection of pass, whole switch is just powered.

3rd, the cooperation of set and elastic component is wherein kept, during resilience, elastic component produces elasticity to silica gel leather cup and pulls power, makes Breath oral area can be produced when entering sleeve by holding bottom plate it is enough pull power, be allowed to be converted into extruding of the breath oral area to accommodating chamber Power, sealing is better, and obturation effect is stronger.

4th, single rotary switch can include multiple safety switch assemblies, and safety switch assembly is controlled by turn knob Keying, reach the purpose more than a control, and safety switch assembly waterproof so that rotary switch can make in moist environment With.

Brief description of the drawings

Fig. 1 is the sectional view of safety switch assembly in the present embodiment (do not stress state)；

Fig. 2 is the sectional view (pressing splenium stress) of safety switch assembly in the present embodiment；

Fig. 3 is the sectional view of silica gel leather cup in the present embodiment；

Fig. 4 is the sectional view of movable contact in the present embodiment；

Fig. 5 is the half-sectional structural representation of silica gel leather cup in the present embodiment；

Fig. 6 be the present embodiment in keep set structural representation；

Fig. 7 is the connection diagram (normal condition) of the first contact site and movable contact in the present embodiment；

Fig. 8 is the connection diagram (overload) of the first contact site and movable contact in the present embodiment；

Fig. 9 is the structural representation of the auxiliary bullet formula waterproof rotary switch embodiment of the utility model；

Figure 10 is the sectional view of the auxiliary bullet formula waterproof rotary switch embodiment of the utility model；

Figure 11 is the partial enlarged drawing at A in Figure 10.

Reference：1st, safety switch assembly；10th, the first binding post；100th, the first contact site；1000th, end； 1001st, arc contact portion；1002nd, kink；11st, the second binding post；110th, second connecting portion；12nd, guiding conical plate；13rd, it is spacing Barrel；2nd, set is kept；20th, bottom plate is kept；21st, sleeve；30th, silica gel leather cup；30a, chassis portion；30b, quarrel portion；300th, Xi Kou Portion；301st, fold ring；302nd, accommodating chamber；310th, bar portion lock chamber；311st, end lock chamber；313rd, rigid outer layer；32nd, activity is touched Head；320th, contact bar portion；321st, contact end；33rd, splenium is pressed；330th, gland wall is pressed；4th, knob；40th, projection is pushed；41st, open Close cavity.

Embodiment

The utility model is described further below in conjunction with the accompanying drawings.

A kind of auxiliary bullet formula waterproof rotary switch as shown in Fig. 1 to 11, including switch outer cover and knob 4,4 sets of the knob Switch outer cover inwall is connected to, the switch outer cover sidewall is provided with the switch cavity 41 of outwardly convex, the switch cavity 41 and set There are 3 safety switch assemblies 1, safety switch assembly 1 is circumferentially evenly distributed along switch outer cover.

The knob 4 switched by turn knob, you can make the pushing projection 40 of the bottom of knob 4 follow its common rotation, Pushing projection 40 can act on the splenium 33 of pressing of safety switch assembly 1, reach that single knob controls multiple safety switch assemblies 1 Keying effect.

As shown in Figure 10, the side wall of knob 4 provided with rotate be used to promoting safety switch assembly 1 press that splenium 33 is flexible to be pushed away Belling block 40；It is in cambered surface to push projection 40, presses splenium 33 and is provided with arc groove towards the one side for pushing projection 40, the arc is recessed Groove is engaged with pushing projection 40.

As shown in figure 11, press the arc groove on splenium 33 to be engaged with pushing the globoidal structure of projection 40, knob is existed During rotation, certain clamping pause effect can be had by pushing projection 40 and being docked to when pressing splenium 33, when the pushing of globoidal structure is convex When block 40 is caught in groove, then it represents that be aligned.

Rotary switch integrally in being vertically arranged, knob 4 as shown in Figure 9 upward, in its internal safety switch assembly 1 The telescopic direction of movable contact 32 is to be stretched in horizontal plane, and liquid can be made to be not easy directly to be entered the second appearance by Action of Gravity Field Intracavitary.

As shown in Figures 1 to 8, it is safety switch assembly 1 in the present embodiment, including housing and shift knob.

As shown in figure 1, shift knob includes movable contact 32, presses the silica gel leather cup that splenium 33 and movable telescopic reset 30, splenium 33 is pressed outside the housing, and silica gel leather cup 30 is located at and the end that to press splenium 33 relative of movable contact 32.

Press splenium 33 and press button using plastics, middle part is provided with the elastic component 34 for being used for pressing the reset of splenium 33, pressure is pressed by pushing Portion 33 can realize the dilatation of silica gel leather cup 30, while in the presence of the elastic reset of elastic component 34 pulls power, can be with Allow the Rapid reset of silica gel leather cup 30, the elastic component 34 in the present embodiment uses column spring.

The surface of housing is provided with spacing barrel 13, and pressing splenium 33 includes pressing gland wall 330, by spacing barrel 13 with pressing pressure The reciprocal telescopic of the two is realized in the spacing cooperation of tegmental wall 330, and ensures that pressing splenium 33 will not fall off.

Provided with the first binding post 10 and the second binding post 11 for being parallelly mounted to housing side in housing, housing includes First cavity volume and the second cavity volume, the end of the first binding post 10 are provided with the first contact site 100, and the first contact site 100 is located at first In cavity volume；The end of second binding post 11 is provided with second connecting portion 110, and second connecting portion 110 is electrically connected with movable contact 32, the Two connecting portions 110, movable contact 32 and silica gel leather cup 30 are respectively positioned in the second cavity volume.

Holding set 2 and guiding conical plate 12 are additionally provided with housing.Set 2 is kept to be fixed on enclosure interior, it is annular sleeve to keep set 2 Part, keeps 2 longitudinal sections of set L-shaped, keeps set 2 to include sleeve 21 and keep bottom plate 20, quarrel portion 30b is sheathed on sleeve 21 Interior, the thickness of breath oral area 300 is more than the inwall radius of sleeve 21；When shift knob is not restored to the original state by external force, oral area 300 is ceased Extruded in sleeve 21 and the holding intersection of bottom plate 20 and close accommodating chamber 302.The increase breath oral area 300 when silica gel leather cup 30 recovers To the sealing of accommodating chamber 302.

As shown in figure 3, silica gel leather cup 30 includes chassis portion 30a and quarrel portion 30b, chassis portion 30a is disc-shaped, quarrel portion In a tubular form, quarrel portion 30b is vertically connected at chassis portion 30a to 30b, chassis portion 30a be located at guiding conical plate 12 and keep bottom plate 20 it Between.

Chassis portion 30a periphery is mutually fixed by fold ring 301 with inner walls, fold ring 301 be located at chassis portion 30a and Between inner walls, in a ring wavy of fold ring 301, fold ring 301 and chassis portion 30a is integrally formed setting, fold ring 301 can be compressed and be stretched to a greater extent, it is ensured that chassis portion 30a can occur to deform to a greater extent.

Provided with the accommodating chamber 302 for accommodating movable contact 32, chassis portion 30a and quarrel portion 30b connection in the middle part of quarrel portion 30b Place is more than quarrel portion 30b wall thickness provided with breath oral area 300, the wall thickness of breath oral area 300.

Guiding conical plate 12 can be guided to chassis portion 30a moving direction, and guiding conical plate 12 is tapered, guiding conical plate 12 are located between the first cavity volume and the second cavity volume, and the middle part of guiding conical plate 12 is provided with the through hole passed through for movable contact 32, and through hole connects Logical first cavity volume and the second cavity volume.

As shown in Fig. 2 when the rotation of knob 4 makes the extruding of pushing projection 40 press splenium 33, spring is compressed, and presses the band of splenium 33 Dynamic quarrel portion 30b is moved to case inside, quarrel portion 30b extruding breath oral areas 300 enter guiding conical plate 12 and keep bottom plate 20 it Between, chassis portion 30a is moved to the outer circumferential side of the second cavity volume, and chassis portion 30a is extruded and drives fold ring 301 to deform, and ceases oral area 300 are also moved to periphery, and the accommodating chamber 302 at middle part is opened, and the contact bar portion 320 of movable contact 32 passes through guiding conical plate 12 Through hole contacted with the first contact site 100, realize that second connecting portion 110, movable contact 32 and first contact site 100 are electrically connected Logical, safety switch assembly 1 is in connected state, the closing of circuit of safety switch assembly 1.

As shown in figure 1, when knob 4 rotate pushing projection 40 is departed from the contact with pressing splenium 33, press splenium 33 no longer by Power, under the reset response of spring restoring force, will press splenium 33 to hull outside and eject, and quarrel portion 30b pulls to the right multiple Position, the two ends of chassis portion 30a from the second cavity volume are replied to middle part, and movable contact 32 follows quarrel portion 30b outside by enclosure interior Portion is moved, and breath oral area 300 also has outside to enter in the sleeve 21 for keeping set 2, because the barrel internal diameter of sleeve 21 is less than breath oral area 300 thickness, breath oral area 300 in sleeve 21 and keeps the junction of bottom plate 20 mutually to extrude in the presence of spring pulls power, Accommodating chamber 302 is closed, the connection of the cavity volume of accommodating chamber 302 and first is disconnected, keeps set 2 to add breath oral area by rigid 300 sealing, while safety switch assembly home loop is changed into open circuit, the connection of the first binding post and the second binding post Disconnect, even if now there is steam to enter from bar portion lock chamber 310 in accommodating chamber 302, the extruding due to ceasing oral area 300, which is closed, to be made With being obstructed to steam, the first cavity volume is in air-tight state, safety switch assembly 1 powers off.

Splenium 33 is pressed using the plastic material of hard as pressing button, and coordinates spacing barrel 13 and presses gland wall 330, can So as to press splenium 33 with certain anti-bending strength, even if pressing during pressure, Impact direction generation is crooked, will not also to press pressure Portion 33 can not stretch.

Movable contact 32 is in T-shape, includes opening up in the contact bar portion 320 of contact end 321 and conduction, quarrel portion 30b There are bar portion lock chamber 310 and end lock chamber 311, end lock chamber 311 is located at the side of silica gel leather cup 30 pressed where splenium 33, Contact bar portion 320 is fixed in bar portion lock chamber 310, and contact end 321 is fixed in end lock chamber 311.

Bar portion lock chamber 310 and end lock chamber 311 effectively improve movable contact 32 in the fixation in silica gel leather cup 30, prevent Only it is deformed and the skew and dislocation abjection phenomenon produced in moving process in silica gel leather cup 30.

First contact site 100 of the first binding post 10 uses memory alloy material, and the first contact site 100 includes end 1000th, it is curved that the arc contact portion 1001 that is contacted for same movable contact and heating make that arc contact portion 1001 separates with movable contact 32 Folding part 1002；End 1000 is located at the two ends of the first contact site 100 and fixed with enclosure interior, and kink 1002 is touched positioned at arc Between portion 1001 and end 1000.

The memory alloy material used in the present embodiment has a feature, i.e., curved when the temperature of the first contact site 100 rises The bending angle of folding part 1002 can become big, and end 1000 is the fixation for the two ends of the first contact site 100.

As shown in Figure 7 and Figure 8, when the power for switching vigour part is excessive or overloads, the electricity passed through in the first contact site 100 Stream is larger, and the heat of generation becomes many, the rising of the bulk temperature of the first contact site 100, due to the two ends of end 1000 be it is fixed, therefore Kink 1002 is shunk and close to two ends, and arc contact portion 1001 is overall to be offset to the left side, and spacing is produced simultaneously with movable contact 32 Disconnected with movable contact 32, now switch is off, it is to avoid electrical appliance overloads, it is ensured that security.

It is described above to make preferred embodiment of the present utility model, do not depart from for the person of ordinary skill of the art On the premise of the utility model principle, some variations and modifications can also be made, these also should be regarded as protection of the present utility model Scope.

Claims (9)

1. a kind of auxiliary bullet formula waterproof rotary switch, including switch outer cover and knob (4), the knob (4) are socketed on switch outer cover Inwall, it is characterised in that：The switch outer cover sidewall is provided with the switch cavity (41) of outwardly convex, the switch cavity (41) Provided with safety switch assembly (1),

The safety switch assembly (1) includes housing and shift knob；

- the shift knob includes movable contact (32), presses splenium (33) and the silica gel leather cup (30) of movable telescopic reset, presses Splenium (33) is located at outside housing, presses splenium (33) and is moved back and forth with respect to housing, and pressing splenium (33) and being provided between housing makes to press pressure The elastic component (34) that portion (33) resets, the silica gel leather cup (30) is located at movable contact (32) end relative with splenium (33) is pressed End；

- the housing is provided with the first binding post (10) in the first cavity volume and the second cavity volume, housing provided with parallel installation and the Two binding posts (11), the first binding post (10) end is provided with the first contact site (100), and the first contact site (100) is located at the In one cavity volume；Second binding post (11) end is provided with second connecting portion (110) is electrically connected with movable contact (32), and second connects Portion (110) is located in the second cavity volume, and movable contact (32) and silica gel leather cup (30) are respectively positioned in the second cavity volume；

- silica gel leather cup (30) is included outside the chassis portion (30a) of plate-like and the quarrel portion (30b) of tubulose, the chassis portion (30a) Week is mutually fixed with inner walls, provided with the accommodating chamber (302) for accommodating movable contact (32), quarrel in the middle part of the quarrel portion (30b) Portion (30b) is connected and synchronizing moving with pressing splenium (33), and the chassis portion (30a) and quarrel portion (30b) junction are provided with With silica gel leather cup (30) activity open and close accommodating chamber (302) breath oral area (300), the chassis portion (30a), quarrel portion (30b) and Breath oral area (300) is integrally formed setting；

It is additionally provided with-the housing for increasing the holding set (2) of breath oral area (300) seal, it is described to keep set (2) to be fixed on Enclosure interior, the holding set (2) is annular external member, keeps set (2) longitudinal section L-shaped, keeps set (2) to include sleeve (21) With holding bottom plate (20), quarrel portion (30b) slip cap is in sleeve (21)；When shift knob is not restored to the original state by external force When, the breath oral area (300) is in sleeve (21) and keeps bottom plate (20) intersection to extrude and closes accommodating chamber (302), the breath The thickness of oral area (300) is more than the wall thickness of quarrel portion (30b)；

When knob (4), which is rotated, pushing projection (40) extruding is pressed splenium (33), elastic component (34) is compressed, and presses splenium (33) band Dynamic quarrel portion (30b) is moved to case inside, presses splenium (33) inwardly extruding silica gel leather cup (30), quarrel portion (30b) is inwardly moved Move and extrude chassis portion (30a) and deform laterally, breath oral area (300) with chassis portion (30a) open laterally by movement, accommodating chamber (302) connected between the first cavity volume and pass through movable contact (32), movable contact (32) front end is pressed on the first contact site (100), second connecting portion (110), movable contact (32) and the first contact site (100) are electrically connected successively, and switch is in connected state State；

Pushing projection (40) is set to depart from the contact with pressing splenium (33), silica gel leather cup (30) and elastic component when knob (4) is rotated (34) do not stress, under the elastic recoil effect of elastic component (34) and silica gel leather cup (30), press splenium (33) by elastic component (34) resilience and pull quarrel portion (30b) and move laterally, quarrel portion (30b) drives movable contact (32) to be together displaced outwardly, Movable contact (32) is separated with the first contact site (100)；And cease oral area (300) by outside to be recovered to original position, when breath oral area (300) due to being pullled by splenium (33) is pressed when entrance sleeve (21) is interior, the closed power of the extruding closing of breath oral area (300) is more Greatly, breath oral area (300) is extruded and closes the passage between accommodating chamber (302) and the first cavity volume, and switch is off.

2. a kind of auxiliary bullet formula waterproof rotary switch according to claim 1, it is characterised in that：Use is additionally provided with the housing In the guiding conical plate (12) of chassis portion (30a) movement and deformation laterally, the guiding conical plate (12) is tapered, guiding conical plate (12) The through hole passed through for movable contact (32) is provided between the first cavity volume and the second cavity volume, in the middle part of guiding conical plate (12), it is described Through hole connects the first cavity volume and the second cavity volume.

3. a kind of auxiliary bullet formula waterproof rotary switch according to claim 2, it is characterised in that：The guiding conical plate (12) The angle of cone angle is 130 ° -160 °.

4. a kind of auxiliary bullet formula waterproof rotary switch according to claim 1, it is characterised in that：The chassis portion (30a) with The junction of inner walls is provided with the fold ring (301) for occurring more large deformation amount for chassis portion (30a), the fold ring (301) In a ring wavy, the fold ring (301) is integrally formed setting with chassis portion (30a).

5. a kind of auxiliary bullet formula waterproof rotary switch according to claim 1, it is characterised in that：Movable contact (32) bag Include in the contact bar portion (320) of contact end (321) and conduction, the silica gel leather cup (30) and offer bar portion lock chamber (310) With end lock chamber (311), the end lock chamber (311) is located at silica gel leather cup (30) side pressed where splenium (33), touches Head rod portion (320) is fixed in bar portion lock chamber (310), and contact end (321) is fixed in end lock chamber (311).

6. a kind of auxiliary bullet formula waterproof rotary switch according to claim 1, it is characterised in that：First binding post (10) the first contact site (100) uses memory alloy material, and the first contact site (100) includes end (1000), for living The arc contact portion (1001) of moving contact contact and heating make the kink that arc contact portion (1001) is separated with movable contact (32) (1002)；The end (1000) is located at the two ends of the first contact site (100) and fixed with enclosure interior, the kink (1002) it is located between arc contact portion (1001) and end (1000).

7. a kind of auxiliary bullet formula waterproof rotary switch according to claim 1, it is characterised in that：The sleeve (21) and holding Bottom plate (20) is perpendicular to be set；Chassis portion (30a) and quarrel portion (30b) perpendicular setting.

8. a kind of auxiliary bullet formula waterproof rotary switch according to claim 1, it is characterised in that：It is described pushing projection (40) be in Cambered surface, presses splenium (33) and is provided with arc groove towards the one side for pushing projection (40), the arc groove is with pushing projection (40) It is engaged.

9. a kind of auxiliary bullet formula waterproof rotary switch according to claim 1, it is characterised in that：The switch outer cover is provided with altogether 3 safety switch assemblies (1), the safety switch assembly (1) is circumferentially evenly distributed along switch outer cover.