CN115602477B - Novel three-gear switch and processing technology thereof - Google Patents

Abstract

The invention relates to the technical field of gear switches, in particular to a novel three-gear switch and a processing technology thereof. The invention comprises a needle seat and a shell, wherein the shell is fixed at the top of the needle seat through a screw, a switching mechanism is arranged between the needle seat and the shell and used for switching gears, the switching mechanism comprises a guide assembly and a transmission assembly, and the guide assembly is arranged between the needle seat and the shell. According to the invention, through the structural design of the switching mechanism, the device is convenient to switch gears of three contacts, the working efficiency is accelerated, the flexibility of the device is improved, and through the structural design of the positioning mechanism, the device can perform limiting positioning on the push handle through the matching of the positioning elastic sheet and the limiting port after the gears are switched, so that the use effect is better, and through the arrangement of the whole process, the forming effect can be good when the device is processed and manufactured, the yield of the whole product can be improved, and the device has good popularization value.

Description

Novel three-gear switch and processing technology thereof

Technical Field

The invention relates to the technical field of gear switches, in particular to a novel three-gear switch and a processing technology thereof.

Background

The rotary coding switch is also called a small rotary encoder, and is a switch electronic component with a group of regular and strict time sequence pulses, and can be divided into a mechanical rotary coding switch and a photoelectric rotary coding switch according to the structure. The mechanical rotary coding switch is a coding product which generates regular pulses by the contact formed by regular rotation or (movement) of a signal matched part, and the service life of the mechanical rotary coding switch is greatly limited; the photoelectric rotary coding switch is a coding product which generates regular pulses through contactless point contact formed by light source coupling, and has extremely long service life.

The tact switch has the advantages of small contact resistance load, accurate operation force error, diversified specifications and the like, and is widely applied to electronic equipment, white household appliances and the like, such as: audio-visual products, digital products, remote controllers, communication products, household appliances, security products, toys, computer products, fitness equipment, medical equipment, currency examining pens, laser pen keys and the like. The touch switch directly replaces large equipment and high-load buttons under environmental conditions (the applied pressure is less than 2 times of elasticity/environmental temperature and humidity conditions and electrical performance) by using conductive rubber or metal dome switch hardware elastic sheets, such as medical equipment, a television remote controller and the like.

For example, an authorized public (public) number CN104319149B combined mechanism of a switch key and an encoder knob and a switch encoder relate to an encoder. The combined mechanism comprises a knob and a key, wherein the knob is provided with at least three matched convex ribs, a step part of the key is provided with matched notches, the positions and the number of the matched notches are correspondingly matched with the matched convex ribs, the matched convex ribs extend into the matched notches, and the key can move back and forth along the rib length direction of the matched convex ribs to play a pressing role; under the limiting effect of the matching notch on the clamping position of the matching convex rib, the knob and the key rotate simultaneously, the knob can rotate along with the key, and the key can also rotate along with the knob. Switch encoder, the combined mechanism of button and encoder knob including above-mentioned switch still includes waterproof gasket, carousel mechanism, on-off mechanism and body. The knob and the key can be rotated to generate a coding signal, and the switch coder is thin, compact in structure and convenient to use. The turntable is stable and has good mechanical strength. The positioning spring has the advantages of good positioning property, light force, clear gear hand feeling and sound;

it presents the following problems: with the development of science and technology and the progress of humanity, the tact switch has advantages of small contact resistance, accurate operation force error, diversified specifications and the like, and is widely applied to electronic equipment, white household appliances and the like.

The bottom surface of the base is used for upwards extending a cylinder with a hollow structure in a protruding mode, the bottom of the button piece is provided with an annular groove corresponding to the cylinder, and the groove is clamped on the cylinder to achieve sealing between the base and the button piece, so that a waterproof effect is achieved. The button piece and the upper cover are sequentially overlapped on the top surface of the base from top to bottom, the upper cover is detachably connected with the base, and when the upper cover is connected with the base, the sealing effect between the base and the button piece can be deepened, so that a better waterproof effect is achieved; the support and the elastic piece are sequentially sleeved on the column body from top to bottom and located in the containing cavity, when a user presses the button piece, the support is stressed to enable the first terminal and the second terminal to be in contact and to be communicated with a circuit, and after the force applied by the user disappears, the elastic piece does elastic recovery movement to enable the first terminal and the second terminal to be separated to break the circuit. Has the advantages of both waterproof function and quick conduction function.

If an authorized public (announcement) number is CN105140068A, the light touch switch comprises a shell and a button with a reset spring, a movable contact piece and a static contact piece which are correspondingly matched are arranged in the shell, a spring piece is fixed in the shell, upward elastic feet are arranged on two sides of the spring piece, stepped rails are arranged on two side walls of the button, and the free end of each elastic foot is in elastic tight contact sliding fit with the corresponding stepped rail to form a button pressing hand feeling feedback structure. The free end of the elastic foot is in elastic tight-touch sliding fit with the stepped track, the free end of the elastic foot slides through the stepped track in the pressing process to enable the button to generate very clear hand feeling feedback and be clearly perceived by people, the elastic foot slides through the stepped track to rebound in the resetting process to generate crisp rebound sound, the prompt is obvious, meanwhile, the rebound force of the elastic foot can enhance the restoring effect of the reset spring, and the operation of the light-touch switch not only keeps sensitive and convenient, but also is clear in hand feeling and not easy to operate mistakenly;

it presents the following problems: in electric appliances in automobiles and other fields, tact switches are often used. The common design of the light touch switch requires small pressing force and short pressing stroke, although the operation is sensitive and convenient, the hand feeling feedback of the operation is small and is not easy to be perceived, and if the switch operation is carried out at an instrument panel with densely distributed switches, the hand part is easy to touch other light touch switches accidentally to cause misoperation;

its inside elasticity foot free end and step track elasticity tightly touch sliding fit, press the in-process elasticity foot free end and slide the step track and can make the button produce very clear feedback of feeling, let the people obviously perceive, the in-process elasticity foot slides the step track and kick-backs and can produce clear and crisp kick-backs, the suggestion is obvious, simultaneously elasticity foot resilience force can strengthen reset spring's answer effect, the operation of dabbing the switch not only keeps sensitive convenient, and it is clear to feel moreover, difficult maloperation.

The light touch switch comprises a base and a stand column which is perpendicular to the base and is connected with the base, wherein a through groove is formed in the stand column, at least one through hole is formed in the bottom of the through groove, a cylindrical contact rod which is in close contact with the side wall of the through hole penetrates through the through hole, a spring is wrapped outside the cylindrical contact rod, the radius of the spring is larger than that of the through hole, the bottom of the spring is fixed in the through groove, one end of the cylindrical contact rod is connected with a keycap, the bottom of the other end of the cylindrical contact rod is provided with a movable contact, the base comprises a cavity, a circuit substrate is arranged at the bottom of the cavity, and a fixed contact is arranged on the circuit substrate at a position corresponding to the movable contact. The light touch switch replaces a spring piece with a spring, so that the cost is saved, and the light touch switch is convenient to disassemble, so that the spring is convenient to replace, and the whole light touch switch is convenient to maintain;

it presents the following problems: the touch switch is called a key switch, has the advantages of small touch charge, accurate operation, various specifications and the like, and is widely applied to electronic equipment, such as video and audio products, digital products, remote controllers, computer products and the like, and the touch switch is needed. The touch switch with the traditional structure mainly comprises a base, a button and an upper cover, wherein the upper cover is provided with a through hole, the button is matched with the through hole, and the internal structure of the touch switch is opened and closed by the elastic sheet under the action of force and elasticity. However, in the using process, the elastic sheet is easy to fall off or the elasticity of the elastic sheet is weakened, and because the elastic sheet is fixedly arranged in the base, when the problem of falling off or the elasticity of the elastic sheet is weakened, the whole tact switch is required to be replaced, so that the cost is increased;

it replaces the spring leaf through the spring, and one has saved the cost, and two have also made things convenient for the dismantlement to the convenient change to the spring, thereby make things convenient for whole maintenance of dabbing the switch, simultaneously, under the condition of a base, be provided with two buttons, thereby when setting up side by side in the face of a plurality of dabbing the switch, can reduce the space, reduced the usage space when dabbing the switch installation.

However, in the prior art, only two contacts can be switched in the use process, and when three contacts need to be switched, a gear switch needs to be additionally arranged, so that the use effect is not ideal enough, and meanwhile, the forming effect is not ideal enough in the manufacturing process of the prior processing technology, so that a novel three-gear switch and a processing technology thereof are provided.

Disclosure of Invention

The invention aims to provide a novel three-gear switch and a processing technology thereof, which aim to solve the problems in the background technology: in the use process of the prior art, only two contacts can be switched, when three contacts are required to be switched, a gear switch needs to be additionally arranged, so that the use effect is not ideal, and meanwhile, the forming effect is not ideal during the manufacturing of the conventional machining process.

In order to solve the technical problems, the invention adopts the following technical scheme:

a novel three-gear switch comprises a needle seat and a shell, wherein the shell is fixed at the top of the needle seat through screws, a switching mechanism is assembled between the needle seat and the shell and used for switching gears, the switching mechanism comprises a guide assembly and a transmission assembly, the guide assembly is assembled between the needle seat and the shell and used for assisting the switching mechanism to switch the gears, the transmission assembly is assembled on the inner side of the guide assembly and used for being connected with corresponding gears, the gear of three contacts can be conveniently switched through the structural design of the switching mechanism, and when a switching piece rotates, a first contact part and a second contact part can be driven to be in contact with a corresponding first terminal, a COM terminal, a second terminal and a third terminal, so that gear switching operation is facilitated, the working efficiency is improved, and the flexibility of the whole operation process is improved;

the guide assembly comprises a guide groove, a positioning column and a push handle, the guide groove is formed in the side face inside the needle base, the positioning column is fixed at the bottom of the inner side of the needle base, the top of the positioning column is rotatably connected with the push handle, when the guide assembly is used, a user can rotate the push handle to switch gears, the end portion of the push handle is in sliding connection with the guide groove, when the guide assembly is used, the user can rotate the push handle to switch gears, an arc plate is arranged at one end of the push handle and located outside the guide groove, a neck portion of the push handle is integrally fixed on one side of the arc plate and is in sliding connection with the guide groove, an irregular oval rotating seat is arranged at the other end of the push handle, the irregular oval rotating seat is rotatably connected with the positioning column, and when the arc plate is rotated along the inner side of the guide groove through the neck portion of the push handle, the rotating seat can be driven to rotate by taking the positioning column as an axis;

the outer side of the push handle, which is far away from one end of the needle seat, is sleeved with the insulating rubber sleeve, so that a user can contact the push handle more safely through the arrangement of the insulating rubber sleeve, and meanwhile, the insulating rubber sleeve can protect the push handle, thereby being beneficial to the safety during operation;

push away and be equipped with positioning mechanism between handle and the shell, positioning mechanism is used for carrying on spacingly to the position that pushes away the handle, structural design through positioning mechanism makes this device can be after switching the gear, when promoting to push away the handle and rotate, it drives the synchronous rotation of location shell fragment to push away the handle, make the arc arch by shell extrusion shrink, when the arc arch contacts with the spacing mouth that corresponds, the shell is no longer extrudeed spacingly to the arc arch, the arc arch resets under the effect of its own elasticity speciality, and then make the arc arch be connected with the spacing mouth that corresponds, can realize the spacing location to pushing away the handle, avoid pushing away the handle and producing the position change after switching the gear, make the connection of gear more stable, carry out spacing location to pushing away the handle through the cooperation of location shell fragment and spacing mouth, make the result of use better.

Preferably, the transmission assembly includes a switch plate, a first contact portion, a second contact portion, a first terminal, a COM terminal, a second terminal, and a third terminal, the switch plate is fixed to a position of the bottom of the push handle deviating from the positioning column, the first contact portion is fixed to one end of the switch plate, the second contact portion is fixed to the other end of the switch plate, the first terminal, the COM terminal, the second terminal, and the third terminal are fixed to positions of the bottom of the inner side of the header deviating from the positioning column in sequence from left to right, the first terminal, the COM terminal, the second terminal, and the third terminal are fixed to the bottom of the inner side of the header, the bottoms of the first contact portion and the second contact portion are all located on the same horizontal plane as the tops of the first terminal, the COM terminal, the second terminal, and the third terminal, when the push handle is pushed to rotate, the push handle drives the switch plate to rotate along the inner side of the guide groove, so that the second contact portion and the first contact portion are in contact with the corresponding first terminal, the COM terminal, the third terminal, the second contact portion and the first contact portion, the second terminal, the top of the second terminal, and the third terminal are located on the same horizontal plane as the bottom of the second terminal, and the top of the second terminal.

Preferably, the position of the switch plate far away from the first contact part and the second contact part is higher than the first contact part and the second contact part, gaps exist among the switch plate, the first terminal, the COM terminal, the second terminal and the third terminal, and through the arrangement of the height difference of the first contact part and the second contact part, due to the existence of the gaps among the switch plate, the first terminal, the COM terminal, the second terminal and the third terminal, the switching of three gears can be skillfully realized, so that the whole operation process is convenient and fast, and accurate contact can be realized.

Preferably, an included angle between the switching piece and the first contact part is 15 degrees, an included angle between the switching piece and the second contact part is 15 degrees, when the push handle drives the switching piece to rotate, the first contact part and the second contact part can be driven to be in contact with the corresponding first terminal, the COM terminal, the second terminal and the third terminal, and gear switching operation is facilitated.

Preferably, positioning mechanism includes that the bar leads to groove, location shell fragment and spacing mouth, push away the top of handle and be located the position of shell bottom and seted up the bar and lead to the groove, the inboard that the bar leads to the groove is fixed with the location shell fragment, the top of location shell fragment is provided with the arc arch, the top equipartition of shell has seted up three spacing mouth that corresponds with the protruding position of arc, spacing mouth and the protruding clearance fit of arc, when promoting to push away the handle and rotate, push away the handle and drive the synchronous rotation of location shell fragment for the arc arch is extrudeed the shrink by the shell, when the arc arch contacts with the spacing mouth that corresponds, and the shell no longer extrudees spacingly to the arc arch, and the arc arch resets under the effect of its own elasticity speciality, and then makes the arc arch be connected with the spacing mouth that corresponds, can realize the spacing location to pushing away the handle, avoids pushing away the handle and switching gear back production position change for the connection of gear is more stable.

Preferably, a first connecting portion is integrally fixed at one end of the COM terminal, a joint of the first connecting portion and the COM terminal is bent at a right angle, and when the push handle drives the switch plate to rotate to the left, the push handle drives the switch plate to rotate along the inner side of the guide groove, so that the second contact portion is in contact with the bent portion of the first terminal, the first contact portion is in contact with the first connecting portion, and at the moment, the first terminal is connected with the COM terminal.

Preferably, a second connecting portion is integrally fixed to one end of the second terminal, a joint of the second connecting portion and the second terminal is bent at an obtuse angle, the second connecting portion is bent toward a direction away from the first connecting portion, a third connecting portion is integrally fixed to one end of the second connecting portion away from the second terminal, a joint of the second connecting portion and the third connecting portion is bent at a right angle, the third connecting portion is bent toward a direction close to the first connecting portion, one end of the first connecting portion points to the joint of the second connecting portion and the third connecting portion, the push handle is pushed to drive the switch plate to rotate to a central position, the push handle drives the switch plate to rotate along the inner side of the guide groove, the second connecting portion is further contacted with the sixth connecting portion, the first contacting portion is contacted with the first connecting portion, and at this time, the COM terminal is connected with the third terminal.

Preferably, a fourth connecting portion is integrally fixed to one end of the third terminal, a junction between the fourth connecting portion and the third terminal is bent at an obtuse angle, the fourth connecting portion is bent in a direction away from the second connecting portion, a fifth connecting portion is integrally fixed to one end of the fourth connecting portion away from the third terminal, a junction between the fifth connecting portion and the fourth connecting portion is bent at an obtuse angle, the fifth connecting portion is bent in a direction close to the third connecting portion, a sixth connecting portion is integrally fixed to one end of the fifth connecting portion away from the fourth connecting portion, a junction between the sixth connecting portion and the fifth connecting portion is bent at a right angle, the sixth connecting portion is bent in a direction close to the first connecting portion, one end of the first terminal is bent in a direction close to the sixth connecting portion, the push handle is pushed to drive the switching piece to rotate to the right, the push handle drives the switching piece to rotate along the inner side of the guide groove, the second contact portion is made to contact with the third connecting portion, the first contact with the first connecting portion, the COM terminal is connected with the second terminal, and the third terminal can be switched accurately through the arrangement of the structure, so that different gears can be switched ingeniously achieved, the traditional switching technology, and the traditional switching technology is convenient and convenient to use.

A processing technology of a novel three-gear switch is suitable for the novel three-gear switch and comprises the following steps:

s1: a preparation step of preparing a required raw material;

preparing a corresponding punch forming die;

s2: the processing procedure is that the raw materials are added into a punch forming die, the pressure is 35-100N, the temperature is 105-195 ℃, the punching time is 1s-4.5s, and the raw materials are manufactured through the punch forming die;

s3: a mold stripping procedure, namely cooling the formed product, polishing after cooling, and removing burrs;

s4: and a finishing process, namely packaging the treated product, then labeling, and finally warehousing or shipping.

It can be seen without any doubt that the technical problems to be solved by the present application can be solved by the above technical solutions of the present application.

Meanwhile, through the technical scheme, the invention at least has the following beneficial effects:

1. according to the invention, through the structural design of the switching mechanism, the device is convenient to switch the gears of the three contacts, when the switching piece rotates, the first contact part and the second contact part can be driven to be in contact with the corresponding first terminal, the COM terminal, the second terminal and the third terminal, the gear switching operation is convenient to carry out, the working efficiency is accelerated, and the flexibility of the device is improved.

2. According to the invention, through the structural design of the positioning mechanism, after the gear is switched, when the pushing handle is pushed to rotate, the pushing handle drives the positioning elastic sheet to synchronously rotate, so that the arc-shaped bulge is extruded and contracted by the shell, when the arc-shaped bulge is contacted with the corresponding limiting port, the shell does not extrude and limit the arc-shaped bulge any more, the arc-shaped bulge resets under the action of the elastic characteristic of the arc-shaped bulge, and further the arc-shaped bulge is connected with the corresponding limiting port, so that the limiting positioning of the pushing handle can be realized, the position change of the pushing handle after the gear is switched is avoided, the connection of the gear is more stable, and the pushing handle is limited and positioned through the matching of the positioning elastic sheet and the limiting port, so that the use effect is better.

3. Through the arrangement of the whole process, the forming effect is good when the forming process is carried out, the yield of the whole product can be improved, and the forming process has good popularization value.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic illustration of an explosive structure according to the present invention;

FIG. 3 is a schematic view of the expanded structure of the present invention;

fig. 4 is a schematic view of a connection structure of the switching piece, the first contact part and the second contact part according to the present invention;

FIG. 5 is a schematic view of a connection structure of the push handle and the switch plate according to the present invention;

FIG. 6 is a schematic view of the connection structure of the needle holder and the push handle of the present invention;

FIG. 7 is a schematic view of the connection structure of the needle holder and the positioning column of the present invention;

fig. 8 is a schematic diagram of a connection structure of the switch strip, the first terminal and the COM terminal of the present invention;

fig. 9 is a schematic diagram of a connection structure of the switch strip, the COM terminal and the third terminal of the present invention;

fig. 10 is a schematic view of a connection structure of the switch plate, the COM terminal and the second terminal of the present invention;

fig. 11 is a schematic diagram of the external configurations of the first terminal, the COM terminal, the second terminal, and the third terminal of the present invention.

In the drawings, the reference numbers indicate the following list of parts:

in the figure: 1. a needle seat; 2. a housing; 3. a guide groove; 4. a positioning column; 5. a push handle; 6. a switching sheet; 7. a first contact portion; 8. a second contact portion; 9. a first terminal; 10. a COM terminal; 11. a second terminal; 12. a third terminal; 13. a strip-shaped through groove; 14. positioning the elastic sheet; 15. a limiting port; 101. a first connection portion; 111. a second connecting portion; 112. a third connecting portion; 121. a fourth connecting portion; 122. a fifth connecting part; 123. and a sixth connecting portion.

Detailed description of the preferred embodiments

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The first embodiment is as follows:

referring to fig. 1 to 11, a novel three-gear switch includes a needle holder 1 and a housing 2, the housing 2 is fixed on the top of the needle holder 1 through screws, a switching mechanism is assembled between the needle holder 1 and the housing 2, the switching mechanism is used for switching gears, the switching mechanism includes a guide assembly and a transmission assembly, the guide assembly is assembled between the needle holder 1 and the housing 2, the guide assembly is used for assisting the switching mechanism to switch gears, the transmission assembly is assembled inside the guide assembly, and the transmission assembly is used for connecting with corresponding gears;

the guide assembly comprises a guide groove 3, a positioning column 4 and a push handle 5, the guide groove 3 is formed in the side face inside the needle base 1, the positioning column 4 is fixed at the bottom of the inner side of the needle base 1, the top of the positioning column 4 is rotatably connected with the push handle 5, the end portion of the push handle 5 is in sliding connection with the guide groove 3, when the needle is used, a user can perform gear switching by rotating the push handle 5, an arc plate is arranged at one end of the push handle 5 and is positioned outside the guide groove 3, a neck portion of the push handle 5 is integrally fixed on one side of the arc plate and is in sliding connection with the guide groove 3, an irregular oval rotating seat is arranged at the other end of the push handle 5 and is rotatably connected with the positioning column 4, and when the arc plate is held by the user to rotate along the inner side of the guide groove 3 through the neck portion of the push handle 5, the rotating seat can be driven to rotate by taking the positioning column 4 as an axis;

the transmission assembly comprises a switch plate 6, a first contact part 7, a second contact part 8, a first terminal 9, a COM terminal 10, a second terminal 11 and a third terminal 12, the switch plate 6 is fixed at the bottom of the push handle 5 and at a position deviated from the positioning column 4, when the push handle 5 is pushed to rotate, the push handle 5 drives the switch plate 6 to rotate along the inner side of the guide groove 3, so that the second contact part 8 and the first contact part 7 are contacted with the corresponding first terminal 9, COM terminal 10, second terminal 11 and third terminal 12 to carry out gear switching, the first contact part 7 is fixed at one end of the switch plate 6, the second contact part 8 is fixed at the other end of the switch plate 6, the first terminal 9, the COM terminal 10, the second terminal 11 and the third terminal 12 are fixed at the bottom of the inner side of the pin base 1 and at a position deviated from the positioning column 4 in sequence from left to right, and the bottoms of the first contact part 7 and the second contact part 8 and the tops of the first terminal 9, the COM terminal 10, the second terminal 11 and the third terminal 12 are positioned on the same horizontal plane;

the first contact part 7 and the second contact part 8, which are far away from the switch piece 6, are positioned higher than the first contact part 7 and the second contact part 8, and gaps exist among the switch piece 6, the first terminal 9, the COM terminal 10, the second terminal 11 and the third terminal 12;

when the push handle 5 is pushed to rotate, the push handle 5 drives the switch piece 6 to rotate along the inner side of the guide groove 3, so that the second contact part 8 and the first contact part 7 are in contact with the corresponding first terminal 9, the COM terminal 10, the second terminal 11 and the third terminal 12, and the gear is switched on.

Through the structural design of above-mentioned switching mechanism, make this device be convenient for switch the gear of three contact, when switch 6 is when rotating, can drive first contact site 7 and second contact site 8 and the first terminal 9, COM terminal 10, second terminal 11 and the contact of third terminal 12 that correspond, be convenient for carry out the gear switching operation for work efficiency has promoted the flexibility of this device.

The second embodiment:

further optimizing the switching mechanism provided in the first embodiment, specifically, as shown in fig. 2, 3 and 11, an included angle between the switching piece 6 and the first contact portion 7 is 15 °, and an included angle between the switching piece 6 and the second contact portion 8 is also 15 °;

a first connecting part 101 is integrally fixed at one end of the COM terminal 10, and the connecting part of the first connecting part 101 and the COM terminal 10 is bent at a right angle;

a second connection portion 111 is integrally fixed at one end of the second terminal 11, a connection position of the second connection portion 111 and the second terminal 11 is bent at an obtuse angle, the second connection portion 111 is bent towards a direction far away from the first connection portion 101, a third connection portion 112 is integrally fixed at one end of the second connection portion 111 far away from the second terminal 11, a connection position of the second connection portion 111 and the third connection portion 112 is bent at a right angle, the third connection portion 112 is bent towards a direction close to the first connection portion 101, and one end of the first connection portion 101 points to the connection position of the second connection portion 111 and the third connection portion 112;

a fourth connecting portion 121 is integrally fixed at one end of the third terminal 12, a connection position between the fourth connecting portion 121 and the third terminal 12 is bent at an obtuse angle, the fourth connecting portion 121 is bent in a direction away from the second connecting portion 111, a fifth connecting portion 122 is integrally fixed at one end of the fourth connecting portion 121 away from the third terminal 12, a connection position between the fifth connecting portion 122 and the fourth connecting portion 121 is bent at an obtuse angle, the fifth connecting portion 122 is bent in a direction close to the third connecting portion 112, a sixth connecting portion 123 is integrally fixed at one end of the fifth connecting portion 122 away from the fourth connecting portion 121, a connection position between the sixth connecting portion 123 and the fifth connecting portion 122 is bent at a right angle, the sixth connecting portion 123 is bent in a direction close to the first connecting portion 101, and one end of the first terminal 9 is bent in a direction close to the sixth connecting portion 123;

when the push handle 5 drives the switching piece 6 to rotate leftwards, the push handle 5 drives the switching piece 6 to rotate along the inner side of the guide groove 3, so that the second contact part 8 is contacted with the bent part of the first terminal 9, the first contact part 7 is contacted with the first connection part 101, and the first terminal 9 is communicated with the COM terminal 10; pushing the push handle 5 to drive the switching piece 6 to rotate to the central position, so that the push handle 5 drives the switching piece 6 to rotate along the inner side of the guide groove 3, and further the second contact part 8 is contacted with the sixth connection part 123, the first contact part 7 is contacted with the first connection part 101, and at this time, the COM terminal 10 is communicated with the third terminal 12; pushing the push handle 5 to drive the switch plate 6 to rotate rightwards, so that the push handle 5 drives the switch plate 6 to rotate along the inner side of the guide groove 3, and further the second contact part 8 is contacted with the third connection part 112, the first contact part 7 is contacted with the first connection part 101, and at the moment, the COM terminal 10 is communicated with the second terminal 11;

an included angle between the switch plate 6 and the first contact portion 7 is the same as an included angle between the switch plate 6 and the second contact portion 8, so that when the switch plate 6 rotates, the first contact portion 7 and the second contact portion 8 can be driven to be in contact with the corresponding first terminal 9, the COM terminal 10, the second terminal 11 and the third terminal 12, and gear switching operation is facilitated.

Example three:

the switching mechanism provided by the first embodiment is further optimized, and specifically, as shown in fig. 1 to 3, a positioning mechanism is assembled between the push handle 5 and the housing 2, and the positioning mechanism is used for limiting the position of the push handle 5;

the positioning mechanism comprises a strip-shaped through groove 13, a positioning elastic sheet 14 and a limiting opening 15, the strip-shaped through groove 13 is formed in the top of the push handle 5 and is positioned at the bottom of the shell 2, the positioning elastic sheet 14 is fixed on the inner side of the strip-shaped through groove 13, an arc-shaped bulge is arranged at the top of the positioning elastic sheet 14, three limiting openings 15 corresponding to the arc-shaped bulge are uniformly formed in the top of the shell 2, and the limiting openings 15 are in clearance fit with the arc-shaped bulge;

when promotion pushes away handle 5 and rotates, it drives location shell fragment 14 and rotates in step to push away handle 5, make the arc arch be extruded the shrink by shell 2, when the arc arch contacts with the spacing mouth 15 that corresponds, shell 2 no longer extrudes the arc arch spacingly, the arc arch resets under the effect of its own elasticity speciality, and then make the arc arch be connected with the spacing mouth 15 that corresponds, can realize the spacing location to pushing away handle 5, avoid pushing away handle 5 and produce position change after switching the gear, make the connection of gear more stable.

Through the structural design of above-mentioned positioning mechanism, make this device can be behind switching the gear, when promoting to push away handle 5 and rotate, it drives location shell fragment 14 and rotates to push away handle 5, make the arc protruding by 2 extrusion shrinkages of shell, when the arc protruding with the spacing mouthful 15 contact that corresponds, shell 2 is no longer extrudeed spacingly to the arc arch, the arc is protruding to reset under the effect of its own elasticity speciality, and then make the arc protruding be connected with the spacing mouth 15 that corresponds, can realize the spacing location to pushing away handle 5, avoid pushing away handle 5 and producing the position change after switching the gear, make the connection of gear more stable, carry out spacing location to pushing away the handle through the cooperation of location shell fragment and spacing mouth, make the result of use better.

Example four:

the positioning elastic sheet 14 provided in the above embodiment is further optimized, specifically, as shown in fig. 1, the positioning elastic sheet 14 is made of spring steel, and the spring steel refers to special alloy steel for manufacturing various springs and other elastic elements. According to the performance requirements and the use conditions, the alloy spring steel can be divided into common alloy spring steel and special alloy spring steel. The spring steel has excellent comprehensive performance, the spring steel has excellent metallurgical quality, high purity and uniformity, good surface quality and accurate appearance and size, and the positioning elastic sheet 14 is used under long-term alternating stress, so the spring steel is required to have high tensile strength, elastic limit and high fatigue strength. The spring steel is technically required to have certain hardenability, difficult decarburization and good surface quality, and the like, namely the high-quality carbon structural steel with the carbon content WC of 0.6-0.9 percent. The alloy spring steel is mainly of silicon-manganese series steel grade, the carbon content of the alloy spring steel is slightly low, and the performance is improved mainly by increasing the silicon content Wsi; and alloy spring steels of Cr, W and V. In recent years, by combining Chinese resources and according to the requirements of new technology of automobile and tractor design, a new steel grade with elements such as boron, niobium, molybdenum and the like added on the basis of silicon-manganese steel is developed, the service life of the spring is prolonged, and the quality of the spring is improved;

the limiting ports 15 are uniformly distributed by taking the circle center of the positioning column 4 as an axis, when the push handle 5 is pushed to rotate to the left, the push handle 5 drives the switching piece 6 to rotate along the inner side of the guide groove 3, so that the second contact part 8 is contacted with the first terminal 9, the first contact part 7 is contacted with the COM terminal 10, at the moment, the first terminal 9 is communicated with the COM terminal 10, and the positioning elastic sheet 14 is clamped at the inner side of the limiting port 15 at the left end;

the push handle 5 is pushed to rotate to the middle position, so that the push handle 5 drives the switching piece 6 to rotate along the inner side of the guide groove 3, the second contact part 8 is further contacted with the third terminal 12, the first contact part 7 is contacted with the COM terminal 10, the COM terminal 10 is communicated with the third terminal 12 at the moment, and the positioning elastic piece 14 is clamped on the inner side of the limiting opening 15 in the middle position;

the push handle 5 is pushed to rotate rightwards, so that the push handle 5 drives the switch plate 6 to rotate along the inner side of the guide groove 3, the second contact part 8 is further contacted with the second terminal 11, the first contact part 7 is contacted with the COM terminal 10, the COM terminal 10 is communicated with the second terminal 11, and the positioning elastic piece 14 is clamped on the inner side of the limiting opening 15 at the right end.

Example five:

the push handle 5 provided in the above embodiment is further optimized, specifically, as shown in fig. 1, an insulating rubber sleeve is sleeved on an outer side of one end of the push handle 5 away from the needle holder 1, the insulating rubber sleeve belongs to an insulating material, the insulating material is also called a dielectric, and is a substance which is nonconductive or conductive to a very small extent under the action of a direct current voltage, and the resistivity of the substance is generally greater than 1010 Ω · m. The insulating material is mainly used for isolating electrified conductors with different potentials in electrical equipment, so that current can flow according to a certain path, and the insulating material can also play a role in mechanical support and fixation, arc extinction, heat dissipation, energy storage, moisture protection, mildew prevention or improvement of potential distribution of an electric field and conductor protection. Therefore, the insulating rubber sleeve has high insulation resistance, heat resistance and moisture resistance and has certain mechanical strength.

Through the setting of insulating gum cover for the user is safer when the contact pushes away handle 5, and insulating gum cover can protect pushing away handle 5 simultaneously, is favorable to the security of device.

Example six:

the insulating rubber sleeve provided by the fifth embodiment is further optimized, and particularly, as shown in figure 1,

the insulating rubber sleeve is made of insulating fiber products, and the insulating fiber products refer to insulating materials made of insulating paper, paperboards, paper tubes, various fiber fabrics and the like. The impregnated fibre product is made up by using insulating fibre product as base material and impregnating it with insulating paint, and possesses a certain mechanical strength, electric strength and moisture-resisting property, and also possesses some special functions of resisting mildew, resisting electricity and resisting radiation, etc.. The insulating electrical laminated product is a laminated insulating material prepared by using fiber as a substrate, dip-coating different adhesives and carrying out hot pressing or rolling, and the performance of the insulating material depends on the substrate, the adhesives and a forming process thereof, so that the insulating electrical laminated product can be prepared into a product with excellent electrical performance, mechanical performance, heat resistance, mildew resistance, electric arc resistance, corona resistance and other characteristics.

Example seven:

a processing technology of a novel three-gear switch is suitable for the novel three-gear switch and comprises the following steps:

s1: the preparation process prepares the required raw materials, and the materials are selected so that the stamping part can work normally in a machine or a part and has a certain service life. Therefore, the selected material meets the requirements of corresponding strength, rigidity, toughness, corrosion resistance, heat resistance and other forces according to the use conditions of the stamping part;

preparing a corresponding punch forming die;

s2: the manufacturing method comprises the following steps of adding raw materials into a punch forming die, manufacturing the raw materials through the punch forming die under the conditions that the pressure is 35-100N, the temperature is 105-195 ℃ and the punching time is 1s-4.5s, and enabling the forming effect of a product to be better compared with the traditional process. Stamping, which is a press working method for obtaining a desired part by applying pressure to a material at room temperature using a die mounted on a press to cause separation or plastic deformation;

s3: a mold stripping step, in which a molded product is cooled, polished after being cooled, and burrs are removed, wherein the burrs are burrs and flashes which are frequently existing in all processing methods, the burrs and the flashes are generated on the surface or boundary part of a processed part and are protruding parts which do not conform to the designed shape, and the performance and the appearance of the processed part are undesirable, so that the burr removal treatment is required when the product is stripped;

s4: and a finishing process, namely packaging the treated product, then labeling, finally warehousing or shipping, and taking the product at the later stage conveniently through packaging and labeling.

In summary, the following can be found:

the invention aims at the technical problems that: in the use process of the prior art, only two contacts can be switched, when three contacts need to be switched, a gear switch needs to be additionally arranged, so that the use effect is not ideal, and meanwhile, the forming effect is not ideal when the existing processing technology is manufactured; the technical scheme of each embodiment is adopted. Meanwhile, the implementation process of the technical scheme is as follows:

when gear shifting is required, the push handle 5 is pushed to rotate to the left, so that the push handle 5 drives the switching piece 6 to rotate along the inner side of the guide groove 3, the second contact part 8 is further contacted with the bent part of the first terminal 9, the first contact part 7 is contacted with the first connecting part 101, and at the moment, the first terminal 9 is communicated with the COM terminal 10;

pushing the push handle 5 to rotate to the central position, so that the push handle 5 drives the switching piece 6 to rotate along the inner side of the guide groove 3, and further the second contact part 8 is contacted with the sixth connection part 123, the first contact part 7 is contacted with the first connection part 101, and at this time, the COM terminal 10 is connected with the third terminal 12;

the push handle 5 is pushed to rotate rightwards, so that the push handle 5 drives the switch piece 6 to rotate along the inner side of the guide groove 3, and further the second contact part 8 is contacted with the third connection part 112, the first contact part 7 is contacted with the first connection part 101, and at this time, the COM terminal 10 is communicated with the second terminal 11.

Through above-mentioned setting, above-mentioned technical problem can be solved certainly to this application, simultaneously, realizes following technological effect:

1. the invention enables the device to be convenient for switching the gears of three contacts through the structural design of the switching mechanism, when the switching piece 6 rotates, the first contact part 7 and the second contact part 8 can be driven to be in contact with the corresponding first terminal 9, the COM terminal 10, the second terminal 11 and the third terminal 12, the gear switching operation is convenient, the working efficiency is accelerated, and the flexibility of the device is improved.

2. According to the invention, through the structural design of the positioning mechanism, after gears are switched, when the pushing handle 5 is pushed to rotate, the pushing handle 5 drives the positioning elastic sheet 14 to synchronously rotate, so that the arc-shaped bulge is extruded and contracted by the shell 2, when the arc-shaped bulge is contacted with the corresponding limiting port 15, the shell 2 does not extrude and limit the arc-shaped bulge any more, the arc-shaped bulge resets under the action of the elastic characteristics of the arc-shaped bulge, and further the arc-shaped bulge is connected with the corresponding limiting port 15, so that the limiting positioning of the pushing handle 5 can be realized, the position change of the pushing handle 5 after the gears are switched is avoided, the connection of the gears is more stable, and the pushing handle is limited and positioned through the matching of the positioning elastic sheet and the limiting port, so that the use effect is better.

3. Through the arrangement of the whole process, the forming effect is good when the forming process is carried out, the yield of the whole product can be improved, and the forming process has good popularization value.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (9)

1. The novel three-gear switch is characterized by comprising a needle seat (1) and a shell (2), wherein the shell (2) is fixed at the top of the needle seat (1) through a screw, a switching mechanism is assembled between the needle seat (1) and the shell (2), the switching mechanism is used for switching gears, the switching mechanism comprises a guide component and a transmission component, the guide component is assembled between the needle seat (1) and the shell (2) and used for assisting the switching mechanism to switch gears, the transmission component is assembled on the inner side of the guide component and used for being connected with corresponding gears, the guide component comprises a guide groove (3), a positioning column (4) and a push handle (5), the guide groove (3) is formed in the side surface inside the needle seat (1), the positioning column (4) is fixed at the bottom of the inner side of the needle seat (1), the top of the positioning column (4) is rotatably connected with the push handle (5), the end part of the push handle (5) is slidably connected with the guide groove (3), a positioning mechanism is assembled between the push handle (5) and the shell (2), the positioning mechanism is used for positioning the position of the push handle (5), and the strip-shaped elastic piece (13) and a limiting piece (13) and a strip-shaped positioning mechanism (13) and a strip-shaped positioning hole (13), the inner side of the strip-shaped through groove (13) is fixed with a positioning elastic sheet (14), the top of the positioning elastic sheet (14) is provided with an arc-shaped bulge, three limiting ports (15) corresponding to the positions of the arc-shaped bulge are uniformly distributed at the top of the shell (2), and the limiting ports (15) are in clearance fit with the arc-shaped bulge.

2. The novel three-gear switch according to claim 1, wherein the transmission assembly comprises a switch plate (6), a first contact portion (7), a second contact portion (8), a first terminal (9), a COM terminal (10), a second terminal (11) and a third terminal (12), the switch plate (6) is fixed at the bottom of the push handle (5) and at a position deviated from the positioning column (4), the first contact portion (7) is fixed at one end of the switch plate (6), the second contact portion (8) is fixed at the other end of the switch plate (6), the first terminal (9), the COM terminal (10), the second terminal (11) and the third terminal (12) are sequentially fixed at the bottom of the inner side of the needle seat (1) and at a position deviated from the positioning column (4) from left to right, and the bottoms of the first contact portion (7) and the second contact portion (8) and the tops of the first terminal (9), the COM terminal (10), the second terminal (11) and the third terminal (12) are located on the same horizontal plane.

3. A new type of three-position switch according to claim 2, characterized in that the position of the switching piece (6) away from the first contact (7) and the second contact (8) is higher than the first contact (7) and the second contact (8), and there are gaps between the switching piece (6) and the first terminal (9), the COM terminal (10), the second terminal (11) and the third terminal (12).

4. A new type of three-position switch according to claim 2, characterized in that the angle between the switching piece (6) and the first contact part (7) is 15 °, and the angle between the switching piece (6) and the second contact part (8) is also 15 °.

5. The novel three-gear switch according to claim 1, wherein an insulating rubber sleeve is sleeved on the outer side of one end of the push handle (5) far away from the needle base (1).

6. The novel three-gear switch according to claim 2, characterized in that a first connecting portion (101) is integrally fixed at one end of the COM terminal (10), and a joint of the first connecting portion (101) and the COM terminal (10) is bent at a right angle.

7. The novel three-gear switch according to claim 6, wherein a second connecting portion (111) is integrally fixed to one end of the second terminal (11), a joint of the second connecting portion (111) and the second terminal (11) is bent at an obtuse angle, the second connecting portion (111) is bent in a direction away from the first connecting portion (101), a third connecting portion (112) is integrally fixed to one end of the second connecting portion (111) away from the second terminal (11), a joint of the second connecting portion (111) and the third connecting portion (112) is bent at a right angle, the third connecting portion (112) is bent in a direction close to the first connecting portion (101), and one end of the first connecting portion (101) is directed to the joint of the second connecting portion (111) and the third connecting portion (112).

8. The novel three-gear switch is characterized in that a fourth connecting portion (121) is integrally fixed to one end of the third terminal (12), the junction of the fourth connecting portion (121) and the third terminal (12) is bent at an obtuse angle, the fourth connecting portion (121) is bent in a direction away from the second connecting portion (111), a fifth connecting portion (122) is integrally fixed to one end of the fourth connecting portion (121) away from the third terminal (12), the junction of the fifth connecting portion (122) and the fourth connecting portion (121) is bent at an obtuse angle, the fifth connecting portion (122) is bent in a direction close to the third connecting portion (112), a sixth connecting portion (123) is integrally fixed to one end of the fifth connecting portion (122) away from the fourth connecting portion (121), the junction of the sixth connecting portion (123) and the fifth connecting portion (122) is bent at a right angle, the sixth connecting portion (123) is bent in a direction close to the first connecting portion (101), and one end of the first terminal (9) is bent in a direction close to the sixth connecting portion (123).

9. A novel three-gear switch processing technology is suitable for the novel three-gear switch of any one of claims 1 to 8, and is characterized by comprising the following steps:

s1: a preparation step of preparing a required raw material;

preparing a corresponding punch forming die;

s2: the processing procedure is that the raw materials are added into a punch forming die, the pressure is 35-100N, the temperature is 105-195 ℃, the punching time is 1s-4.5s, and the raw materials are manufactured through the punch forming die;

s3: a mold stripping procedure, namely cooling the formed product, polishing after cooling, and removing burrs;

s4: and a finishing process, namely packaging the treated product, then labeling, and finally warehousing or shipping.

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