push-pull switch

Abstract

The utility model relates to electrical switch technical field, concretely relates to a kind of push-pull switch, comprising: switch shell, terminal component is arranged in switch shell, and terminal component includes at least one group of electric terminal;Execution pole, it is configured for the push-pull movement between first position and second position by the orifice in switch shell;First actuator, fixed mounting is in execution pole, in response to the push-pull movement of execution pole, first actuator is configured as slidably moving in switch shell;Rocker, movably mounted in switch shell, and with first actuator operatively connected, the bottom of rocker is equipped with first plunger, in response to first actuator slidably moving in switch shell, first plunger is swingably moved in switch shell;Joystick, with first plunger operatively connected, joystick is configured as swingably moving in switch shell in response to first plunger, to realize the sweep of joystick between normally open and normally closed position relative to at least one group of electric terminal.

Description

Technical Field

[0001] This utility model relates to the field of electrical switch technology, specifically to a push-pull switch. Background Technology

[0002] A push-button switch is a switch that uses a button to push a transmission mechanism to control the connection or disconnection of the moving contact and the stationary contact, thereby switching the circuit. Push-button switches are widely used in electrical automatic control circuits.

[0003] Push-pull push-button switches can be used in low-voltage control circuits. Generally, during operation, pushing the button forward initiates the operation, and pulling it out ends it. However, the reaction time when operating the switch is slower when pulling it out than when pushing it forward. Chinese utility model patent CN2765306Y discloses a push-pull push-button switch, including a push-pull button and switch contacts. The end cap at the top of the push-pull button directly contacts the switch contact assembly. Pulling the button out initiates the operation, and pushing it forward ends the operation. This not only solves the problem of slow human reaction time but also eliminates the unreliability of push-button switches in emergency situations. However, existing push-pull push-button switches lack instantaneous operation and are prone to generating sparks when switched on. Summary of the Invention

[0004] This application aims to alleviate at least one of the aforementioned problems.

[0005] This application may relate to several broad forms. Embodiments of this application may include one or any combination of the various broad forms described herein.

[0006] In its first broad form, this application provides a push-pull switch, comprising:

[0007] A switch housing, wherein terminal components are arranged in the switch housing, and the terminal components include at least one set of electrical terminals;

[0008] An actuator is configured for push-pull movement between a first position and a second position through an orifice in the switch housing. In the first position, the actuator is pushed inward from the switch housing through the orifice, and in the second position, the actuator is pulled outward from the switch housing through the orifice.

[0009] The first actuator, operably connected to the actuator lever, is configured to slidably move within the switch housing in response to the push-pull movement of the actuator lever;

[0010] A rocker arm is movably mounted within a switch housing and operably connected to a first actuator. A first plunger is mounted on the bottom of the rocker arm. In response to the first actuator sliding within the switch housing, the rocker arm is configured to swing within the switch housing so that the first plunger swings within the switch housing.

[0011] A joystick, operably connected to a first plunger, is configured to swing in response to the first plunger within a switch housing to sweep the joystick between normally open and normally closed positions relative to at least one set of electrical terminals.

[0012] Preferably, the push-pull switch further includes a first sealing element arranged around the actuating rod to prevent particles, dust and water from entering the switch housing through the orifice.

[0013] Preferably, the switch housing includes a first housing member and a second housing member detachably mounted on the first housing member; the push-pull switch further includes a second sealing element disposed between the first housing member and the second housing member to prevent particles, dust and water from entering the first housing member through the second housing member.

[0014] Preferably, the push-pull switch further includes a stop member configured to position the actuator during push-pull movement.

[0015] Preferably, a return spring is disposed between the switch housing and the actuator rod, and the return spring is configured to return the actuator rod to the starting position after it is pulled outward.

[0016] Preferably, a first return spring is disposed between the switch housing and the rocker arm, the first return spring being configured to allow the rocker arm to swing back to the starting position after the first actuator disengages from contact.

[0017] Preferably, a first contact spring is disposed between the rocker and the first plunger, and the first contact spring is configured to maintain pressure on the control lever throughout the swinging process of the first plunger.

[0018] Preferably, the top of the control lever is provided with two arc-shaped protrusions so that the first plunger abuts between the two arc-shaped protrusions.

[0019] Preferably, each set of electrical terminals includes a normally closed terminal and a normally open terminal. In response to the first plunger's oscillating movement within the switch housing, the lever is configured to contact the normally closed terminal at one end and contact or disconnect the normally open terminal at the other end.

[0020] In another preferred embodiment, each set of electrical terminals includes a normally closed terminal, a normally open terminal, and a common terminal. In response to the first plunger's oscillating movement within the switch housing, the lever is configured to contact the common terminal at one end and the normally open or normally closed terminal at the other end.

[0021] Preferably, the push-pull switch further includes a terminal housing, which is detachably connected to the switch housing. A third sealing element is provided at the connection between the terminal housing and the switch housing, and the terminal housing has a receiving cavity for each set of electrical terminals.

[0022] Preferably, the push-pull switch further includes at least one set of terminals, each set of terminals corresponding to each set of electrical terminals. One end of the terminal is connected to a cable, and the other end of the terminal is inserted into the receiving cavity of the terminal housing and makes contact with the corresponding electrical terminal.

[0023] In a second, broader form, this application provides a push-pull switch, comprising:

[0024] A switch housing, wherein terminal components are arranged in the switch housing, and the terminal components include at least two sets of electrical terminals;

[0025] An actuator is configured for push-pull movement between a first position and a third position through an orifice in the switch housing. In the first position, the actuator is pushed inward from the switch housing through the orifice, and in the third position, the actuator is pulled outward from the switch housing through the orifice. A second position is located between the first and third positions.

[0026] Both the first actuator and the second actuator are operably connected to the actuator rod. In response to the push-pull movement of the actuator rod, the first actuator and the second actuator are respectively configured to slide within the switch housing.

[0027] A rocker arm is movably mounted within a switch housing and operably connected to a first actuator. A first plunger is mounted on the bottom of the rocker arm. In response to the first actuator sliding within the switch housing, the rocker arm is configured to swing within the switch housing so that the first plunger swings within the switch housing.

[0028] A slider is slidably mounted inside the switch housing and operably connected to a second actuator. A second plunger is mounted on the bottom of the slider. In response to the second actuator, the slider can be slidably moved inside the switch housing, thereby enabling the second plunger to be slidably moved inside the switch housing.

[0029] A joystick is operably connected to a first plunger and a second plunger, respectively, and is oscillatingly moved within the switch housing in response to the first plunger to sweep the joystick between normally open and normally closed positions relative to at least one set of electrical terminals; and is slidably moved within the switch housing in response to the second plunger to sweep the joystick between normally open and normally closed positions relative to at least one set of electrical terminals.

[0030] Preferably, the push-pull switch further includes a first sealing element arranged around the actuating rod to prevent particles, dust and water from entering the switch housing through the orifice.

[0031] Preferably, the switch housing includes a first housing member and a second housing member detachably mounted on the first housing member; the push-pull switch further includes a second sealing element disposed between the first housing member and the second housing member to prevent particles, dust and water from entering the first housing member through the second housing member.

[0032] Preferably, the push-pull switch further includes a stop member configured to position the actuator during push-pull movement.

[0033] Preferably, a return spring is disposed between the switch housing and the actuator rod, and the return spring is configured to return the actuator rod to the starting position after it is pulled outward.

[0034] Preferably, a first return spring is disposed between the switch housing and the rocker arm, the first return spring being configured to allow the rocker arm to swing to the starting position after the first actuator disengages; a second return spring is disposed between the switch housing and the slider, the second return spring being configured to allow the slider to move to the starting position after the second actuator disengages.

[0035] Preferably, a first contact spring is disposed between the rocker and the first plunger, the first contact spring being configured to maintain pressure on the control lever throughout the swinging process of the first plunger; a second contact spring is disposed between the slider and the second plunger, the second contact spring being configured to maintain pressure on the control lever throughout the movement of the second plunger.

[0036] Preferably, the top of the control lever is provided with two arc-shaped protrusions so that the first plunger abuts between the two arc-shaped protrusions.

[0037] Preferably, each set of electrical terminals includes a normally closed terminal and a normally open terminal. In response to the first plunger's oscillating movement within the switch housing, the lever is configured to contact the normally closed terminal at one end and contact or disconnect the normally open terminal at the other end.

[0038] In another preferred embodiment, each set of electrical terminals includes a normally closed terminal, a normally open terminal, and a common terminal. In response to the first plunger's oscillating movement within the switch housing, the lever is configured to contact the common terminal at one end and the normally open or normally closed terminal at the other end.

[0039] Preferably, the push-pull switch further includes a terminal housing, which is detachably connected to the switch housing. A third sealing element is provided at the connection between the terminal housing and the switch housing, and the terminal housing has a receiving cavity for each set of electrical terminals.

[0040] Preferably, the push-pull switch further includes at least one set of terminals, each set of terminals corresponding to each set of electrical terminals. One end of the terminal is connected to a cable, and the other end of the terminal is inserted into the receiving cavity of the terminal housing and makes contact with the corresponding electrical terminal. Attached Figure Description

[0041] This application will be more fully understood from the following detailed description of preferred but non-limiting embodiments described in conjunction with the accompanying drawings, in which:

[0042] Figure 1A-1C The front view, side view and exploded perspective view of the push-pull switch of the first embodiment of this application are shown respectively, wherein each group of electrical terminals includes a normally closed terminal, a normally open terminal and a common terminal;

[0043] Figure 2A-2B Three-dimensional cross-sectional views of the push-pull switch of the first embodiment of this application are shown when it is pushed forward and pulled out, respectively. Figure 2A When the actuator is in the first position, the switch is in the normally closed state; Figure 2B When the actuator is in the second position, the switch is in the normally open state;

[0044] Figure 2C-2D The following are longitudinal cross-sectional views of the push-pull switch of the first embodiment of this application when it is pushed forward and pulled out, respectively. Figure 2A When the actuator is in the first position, the switch is in the normally closed state; Figure 2B When the actuator is in the second position, the switch is in the normally open state;

[0045] Figure 2E-2F The following are vertical cross-sectional views of the push-pull switch of the first embodiment of this application when it is pushed in and pulled out, respectively. Figure 2A When the actuator is in the first position, the switch is in the normally closed state; Figure 2B When the actuator is in the second position, the switch is in the normally open state;

[0046] Figures 3A-3C The front view, side view and exploded perspective view of the push-pull switch of the alternative embodiment of this application are shown respectively, wherein each group of electrical terminals includes a normally closed terminal and a normally open terminal;

[0047] Figures 4A-4B The following are longitudinal cross-sectional views of the push-pull switch in the alternative embodiment of this application when it is pushed forward and pulled out, respectively. Figure 2A When the actuator is in the first position, the switch is in the normally closed state; Figure 2B When the actuator is in the second position, the switch is in the normally open state;

[0048] Figures 4C-4D The following are vertical cross-sectional views of the push-pull switch in the alternative embodiment of this application when it is pushed in and pulled out, respectively. Figure 2A When the actuator is in the first position, the switch is in the normally closed state; Figure 2B When the actuator is in the second position, the switch is in the normally open state;

[0049] Figure 5 A partial perspective view of a push-pull switch according to a second embodiment of this application is shown, wherein the push-pull switch includes a rocker arm and a slider;

[0050] Figures 6A-6C The following are longitudinal cross-sectional views of the push-pull switch in the second embodiment of this application when it is pushed in and pulled out, respectively. Figure 6A When the actuator is in the first position, both the rocker arm and the slider are in the normally closed state. Figure 6B When the actuator is in the second position, the switch of the joystick is in the normally open state, and the switch of the slider is in the normally closed state. Figure 6C With the actuator in the third position, both the rocker arm and the slider switch are in the normally open state;

[0051] Figure 6D-6F The following are vertical cross-sectional views of the rocker arm when the push-pull switch of the second embodiment of this application is pushed forward and pulled out, respectively. Figure 6D When the actuator is in the first position, the switch on the rocker arm is in the normally closed state; Figure 6E When the actuator is in the second position, the switch on the joystick is in the normally open state; Figure 6F With the actuator in the third position, the switch on the joystick is in the normally open state.

[0052] Figure 6G-6I The following are vertical cross-sectional views of the slider when the push-pull switch of the second embodiment of this application is pushed forward and pulled out, respectively. Figure 6G When the actuator is in the first position, the switch of the slider is in the normally closed state; Figure 6H When the actuator is in the second position, the switch of the slider is in the normally closed state; Figure 6I With the actuator in the third position, the switch on the slider is in the normally open state.

[0053] Figures 7A-7B Partial sectional view and exploded view of the push-pull switch according to the third embodiment of this application are shown respectively, and it also includes a terminal housing and a third seal.

[0054] Figures 8A-8B A partial side sectional view and a partial perspective sectional view of the push-pull switch according to the fourth embodiment of this application are shown, and it also includes wiring terminals. Detailed Implementation

[0055] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the embodiments and figures 1-8. The content mentioned in the embodiments is not intended to limit the present invention.

[0056] Preferred embodiments of this application will be described herein with reference to Figures 1 through 8. The embodiments include push-pull switches for use with electric gardening tools, such as ride-on lawnmowers and other electric gardening tools. It should be understood that although this embodiment is described as being used with electric gardening tools, this is merely for illustrative purposes, and alternative embodiments of this application can certainly be used with other types of electrical equipment, such as electric drills, grinders, sanders, saws, rotary tools, and other power tools.

[0057] like Figure 1A-1C and Figures 2A-2F The illustration shows a first embodiment of the push-pull switch of this application, including a switch housing 100. The switch housing 100 includes a first housing member 100A and a second housing member 100B detachably mounted to the bottom of the first housing member 100A. The first housing member 100A and the second housing member 100B can be snap-fitted or threaded together to substantially enclose at least some of the components of the push-pull switch. Alternatively, the push-pull switch may further include a first sealing element 110, which is arranged around the actuating rod 130 to prevent particles, dust, and water from entering the switch housing 100 through an orifice. Specifically, a guide cylinder 100C extends outward from the opening of the switch housing 100. The first sealing element 110 includes a sleeve 110A, which has an opening at a first end and an opening at a second end. A first annular flange 110B extends inward from the opening at the first end, and a second annular flange 110C extends inward from the opening at the second end. The extension width of the first annular flange 110B is greater than the extension width of the second annular flange 110C. The inner side of the first annular flange 110B is tightly fitted to the top of the actuator 130, and the inner side of the second annular flange 110C is tightly fitted to the outer side of the guide cylinder 100C. To further improve the waterproof performance inside the push-pull switch, a second sealing element 120 is disposed between the first housing component 100A and the second housing component 100B to prevent particles, dust, and water from entering the first housing component 100A through the second housing component 100B. Specifically, the second sealing element 120 is boat-shaped, including an annular mounting portion 120A and a cover-shaped portion 120B fixed inside the annular mounting portion 120A. The cover-shaped portion 120B has multiple through holes 120C through which power supply terminals can pass. By providing inlet protection at the opening of the switch housing 100 through the first sealing element 110, and by providing inlet protection between the first housing member 100A and the second housing member 100B through the second sealing element 120, the push-pull switch of this application can achieve an IP67 protection safety level.

[0058] Actuator 130, actuator 130 is configured for push-pull movement between a first position and a second position through an orifice in switch housing 100, such as Figure 2A , Figure 2C and Figure 2E As shown, in the first position, the actuator 130 is pushed inward from the switch housing 100 through the orifice, as... Figure 2B , Figure 2D and Figure 2F As shown, in the second position, the actuator 130 is pulled outward from the switch housing 100 through the orifice. Figure 2A-2D As shown, the top of the actuator 130 passes upward through the guide cylinder 100C and is fixedly mounted with a button 130A. By pressing the button 130A, the actuator 130 can be pushed and pulled between a first position and a second position through the orifice in the switch housing 100. Specifically, the top of the actuator 130 and the button 130A are connected by a pin 130B; of course, in other embodiments, the top of the actuator 130 and the button 130A can also be connected by threads or snap-fits. In this embodiment, a return spring 130C is disposed between the switch housing 100 and the actuator 130. The return spring 130C is configured to return to the starting position after the first actuator 140 is actuated. The setting of the return spring 130C can provide an instantaneous function for the push-pull switch of this application. Specifically, there are two reset springs 130C. Support rods 130D protrude outward from both sides of the bottom of the actuator rod 130. The outer sides of the two support rods 130D are provided with first protrusions 130E. The bottom of the reset spring 130C is sleeved on the outer side of the first protrusions 130E, and the top of the reset spring 130C abuts against the inner side wall of the top of the switch housing 100.

[0059] A first actuator 140 is operably connected to an actuator rod 130. In response to a push-pull movement of the actuator rod 130, the first actuator 140 is configured to slide within the switch housing 100. The first actuator 140 can be detachably installed to the actuator rod 130 by snap-fit, fastening, screwing, or plugging; it can also be fixedly installed to the actuator rod 130 by welding, riveting, bonding, or pressing; or it can be integrally formed with the actuator rod 130. Alternatively, the first actuator 140 can be relatively separate from the actuator rod 130, such as by contact with the actuator rod 130 or by a gap. When the actuator rod 130 is pushed downwards, the actuator rod 130 drives the first actuator 140 to move downwards within the switch housing 100. In this embodiment, the first actuator 140 is integrally formed on the bottom of the actuator rod 130, providing tactile feedback during pushing and pulling. Specifically, a first actuating block 140A protrudes downward from one side of the bottom of the first actuator 140, and a first inclined surface 140B is formed on the side of the first actuating block 140A opposite to the rocker arm 150, so that the first actuating block 140A can press against the surface of the rocker arm 150 to perform a swinging motion. Figure 2EAs shown, when the actuator 130 is in the first position, the second actuator block 140A pushes the rocker arm 150 downwards to swing towards the side closer to the first return spring 150A. At this time, the control lever 170 is configured so that one end is in contact with the common terminal 190D and the other end is in contact with the normally open terminal 190C, and the switch is in the normally closed state; Figure 2F As shown, when the actuator 130 is in the second position, the first actuator block 140A is not in contact with the rocker arm 150. Under the action of the first return spring 150A, the rocker arm 150 swings to the side away from the first return spring 150A. At this time, the control lever 170 is configured so that one end is in contact with the common terminal 190D and the other end is in contact with the normally closed terminal 190B, and the switch is in the normal open state.

[0060] A rocker arm 150 is movably mounted within a switch housing 100 and operably connected to a first actuator 140. A first plunger 160 is mounted on the bottom of the rocker arm 150. In response to the slidable movement of the first actuator 140 within the switch housing 100, the rocker arm 150 is configured to oscillate within the switch housing 100, thereby oscillating the first plunger 160 within the switch housing 100. Figure 2E-2F As shown, optionally, a first return spring 150A is disposed between the switch housing 100 and the rocker arm 150. The first return spring 150A is configured to allow the rocker arm 150 to swing back to the starting position after the first actuator 140 disengages. Specifically, a mounting groove 150B is formed on the inner side of the rocker arm 150, a second protrusion 150C is fixed in the mounting groove 150B, and a third protrusion 190A protrudes upward from the top of the terminal member 190. The top of the first return spring 150A is embedded in the second protrusion 150C in the mounting groove 150B, and the bottom of the first return spring 150A is sleeved on the corresponding third protrusion 190A on the top of the terminal member 190. In this embodiment, there are two first return springs 150A. Of course, in other embodiments, the number of first return springs 150A can be configured to be one or more as needed. In addition, a first contact spring 150D is disposed between the rocker arm 150 and the first plunger 160. The first contact spring 150D is configured to maintain pressure on the control lever 170 during the swinging of the first plunger 160. Specifically, a receiving cavity 150E is formed in the center of the bottom of the rocker arm 150, a fourth protrusion 160A is formed on the top of the first plunger 160, the top of the first contact spring 150D is embedded in the receiving cavity 150E, and the bottom of the first contact spring 150D is sleeved on the fourth protrusion 160A.

[0061] A lever 170, operably connected to a first plunger 160, is configured to swing responsively to the first plunger 160 within the switch housing 100, thereby sweeping the lever 170 relative to at least one set of electrical terminals between normally open and normally closed positions. Figure 2E-2F As shown, in this embodiment, the top of the lever 170 is provided with two arc-shaped protrusions 170A, so that the first plunger 160 abuts between the two arc-shaped protrusions 170A. Correspondingly, the bottom of the first plunger 160 is provided with a protrusion 160B protruding downwards at the position between the two arc-shaped protrusions 170A, and the protrusion 160B abuts between the two arc-shaped protrusions 170A. The number of levers 170 can be reasonably configured according to the number of electrical terminal groups to be operated. Optionally, the number of protrusions 160B at the bottom of the first plunger 160 is the same as the number of levers 170. When multiple levers 170 are required, the multiple levers 170 can be arranged side by side or connected as one unit. To facilitate the swinging of the first plunger 160, the bottom of the protrusion 160B is configured as an arc shape.

[0062] In this embodiment, the push-pull switch of this application further includes a stop member, the stop member 180 being configured to position the actuator 130 during push-pull movement. Figure 2E-2F As shown, specifically, the bottom of the actuator 130 has a radially formed through hole 130F. The stop member 180 includes a first stop 180A, a compression spring 180B, and a second stop 180C, all fitted within the through hole 130F. The two ends of the compression spring 180B abut against the inner sides of the first stop 180A and the second stop 180C, respectively, while the outer sides of the first stop 180A and the second stop 180C abut against the inside of the switch housing 100. Correspondingly, the inner wall of the switch housing 100 has a first position groove 100D and a second position groove 100E. When the actuator 130 is in the first position, the outer sides of the first stop 180A and the second stop 180C abut against the first position groove 100D; when the actuator 130 is in the second position, the outer sides of the first stop 180A and the second stop 180C abut against the second position groove 100E. In this embodiment, both the first stop 180A and the second stop 180C include a cover 180D closed at one end and a fifth protrusion 180E fixed inside the cover 180D. The two ends of the compression spring 180B are respectively sleeved on the fifth protrusions 180E of the first stop 180A and the second stop 180C. In other embodiments, the first stop 180A and the second stop 180C can be replaced by structures such as ball bearings.

[0063] In this embodiment, as Figure 2E-2FAs shown, a terminal member 190 is arranged in the switch housing 100. The terminal member 190 includes at least one set of electrical terminals. Each set of electrical terminals includes a normally closed terminal 190B (NC terminal), a normally open terminal 190C (NO terminal), and a common terminal 190D (COM terminal). In response to the first plunger 160 being oscillatingly movable within the switch housing 100, the operating lever 170 is configured to contact the common terminal 190D at one end and the normally open terminal 190C or the normally closed terminal 190B at the other end. The terminal member 190 shown in this embodiment includes three sets of electrical terminals, and the corresponding number of operating levers 170 is also three. The bottom of the corresponding first plunger 160 has three downwardly protruding bumps 160B, which are used to operate the three operating levers 170 to sweep between the normally open and normally closed positions relative to the three sets of electrical terminals. It is understood that in other embodiments, the terminal member 190 may be configured with only one or two sets of electrical terminals, or may include more than three sets of electrical terminals, as needed.

[0064] In alternative embodiments, such as Figures 3A-3C and Figures 4A-4D As shown, each set of electrical terminals includes a normally closed terminal 190B and a normally open terminal 190C. In response to the first plunger 160 oscillating within the switch housing 100, the operating lever 170 is configured to contact or disconnect one end with the normally closed terminal 190B and the other end with the normally open terminal 190C. Specifically, as... Figure 4A and Figure 4C As shown, when the actuator 130 is in the first position, the second actuator block 140A pushes the rocker arm 150 downwards to swing towards the side closer to the first return spring 150A. At this time, the control lever 170 is configured such that one end is in contact with the normally closed terminal 190B and the other end is disconnected from the normally open terminal 190C, and the switch is in the normally closed state; Figure 4B and Figure 4D As shown, when the actuator 130 is in the second position, the first actuator block 140A is not in contact with the rocker arm 150. Under the action of the first return spring 150A, the rocker arm 150 swings away from the first return spring 150A. At this time, the control lever 170 is configured such that one end is in contact with the normally closed terminal 190B and the other end is in contact with the normally open terminal 190C, and the switch is in the normal open state. The terminal component 190 shown in this embodiment includes six sets of electrical terminals, and the corresponding number of control levers 170 is also six. The bottom of the corresponding first plunger 160 has six protrusions 160B protruding downwards, which are used to operate the six control levers 170 to sweep between the normally open and normally closed positions relative to the six sets of electrical terminals. It can be understood that in other embodiments, the terminal component 190 may be configured with only one, two, three, four, or five sets of electrical terminals as needed, or may include more than six sets of electrical terminals.

[0065] like Figure 5 and Figures 6A-6F The second embodiment of the push-pull switch of this application is shown, which differs from the first embodiment in that the actuator 130 is configured for push-pull movement from a first position to a third position through an opening in the switch housing 100, as shown in the figure. Figure 6A , Figure 6D and Figure 6G As shown, in the first position, the actuator 130 is pushed inward from the switch housing 100 through the orifice, as... Figure 6C , Figure 6F and Figure 6I As shown, in the third position, the actuator 130 is pulled outward from the switch housing 100 through the orifice, as... Figure 6B , Figure 6E and Figure 6H As shown, the second position is located between the first and third positions. Figures 6A-6CAs shown, both the first actuator 140 and the second actuator 200 are operably connected to the actuator rod 130. In response to the push-pull movement of the actuator rod 130, the first actuator 140 and the second actuator 200 are respectively configured to slide within the switch housing. The first actuator 140 and the second actuator 200 can be detachably installed to the actuator rod 130 by means of snap-fit, fastening, screwing, or plugging, or can be fixedly installed to the actuator rod 130 by means of welding, riveting, bonding, or pressing, or can be integrally formed with the actuator rod 130. Of course, the first actuator 140 and the second actuator 200 can also be set relatively separately from the actuator rod 130, such as by contact with the actuator rod 130 or by a gap. When the actuator rod 130 is pushed downward, the actuator rod 130 drives the first actuator 140 and the second actuator 200 to move downward within the switch housing 100. In this embodiment, the first actuator 140 is integrally formed on the bottom of the actuator 130, and the second actuator 200 is separately configured from the actuator 130 to provide tactile feedback during pushing and pulling. A rocker arm 150 is movably mounted within the switch housing 100 and operably connected to the first actuator 140. A first plunger 160 is mounted on the bottom of the rocker arm 150. In response to the slidable movement of the first actuator 140 within the switch housing 100, the rocker arm 150 is configured to swing within the switch housing 100, thereby allowing the first plunger 160 to swing within the switch housing 100. The slider 210 is slidably mounted within the switch housing 100 and operably connected to the second actuator 200. A second plunger 220 is mounted on the bottom of the slider 210. In response to the second actuator 200 slidably moving within the switch housing 100, the slider 210 slidably moves within the switch housing 100, thereby allowing the second plunger 220 to slidably move within the switch housing 100. The lever 170 is operably connected to the first plunger 160 and the second plunger 220, respectively. In response to the first plunger 160 oscillating within the switch housing 100, the lever 170 sweeps between normally open and normally closed positions relative to at least one set of electrical terminals; and in response to the second plunger 220 slidably moving within the switch housing 100, the lever 170 sweeps between normally open and normally closed positions relative to at least one set of electrical terminals.

[0066] In this embodiment, as Figure 6D-6FAs shown, a first return spring 150A is disposed between the switch housing 100 and the rocker arm 150. The first return spring 150A is configured to allow the rocker arm 150 to swing back to the starting position after the first actuator 140 disengages. Specifically, a mounting groove 150B is provided on the inner side of the rocker arm 150, and a second protrusion 150C is fixed in the mounting groove 150B. A third protrusion 190A protrudes upward from the top of the terminal member 190. The top of the first return spring 150A is embedded in the second protrusion 150C in the mounting groove 150B, and the bottom of the first return spring 150A is sleeved on the corresponding third protrusion 190A on the top of the terminal member 190. In this embodiment, there are two first return springs 150A. Of course, in other embodiments, the number of first return springs 150A can be configured to be one or more as needed. In addition, a first contact spring 150D is disposed between the rocker arm 150 and the first plunger 160. The first contact spring 150D is configured to maintain pressure on the control lever 170 during the swinging of the first plunger 160. Specifically, a receiving cavity 150E is formed in the center of the bottom of the rocker arm 150, a fourth protrusion 160A is formed on the top of the first plunger 160, the top of the first contact spring 150D is embedded in the receiving cavity 150E, and the bottom of the first contact spring 150D is sleeved on the fourth protrusion 160A.

[0067] In this embodiment, as Figure 6D-6F As shown, a first actuating block 140A protrudes downward from one side of the bottom of the first actuator 140. A first inclined surface 140B is formed on the side of the first actuating block 140A opposite to the rocker arm 150, facilitating the first actuating block 140A to press against the surface of the rocker arm 150 to perform a rocking motion. Figure 6D As shown, when the actuator 130 is in the first position, the second actuator block 140A pushes the rocker arm 150 downwards to swing towards the side closer to the first return spring 150A. At this time, the control lever 170 is configured so that one end is in contact with the common terminal 190D and the other end is in contact with the normally open terminal 190C, and the switch is in the normally closed state; Figure 6E As shown, when the actuator 130 is in the second position, the first actuator block 140A is not in contact with the rocker arm 150. Under the action of the first return spring 150A, the rocker arm 150 swings away from the first return spring 150A. At this time, the control lever 170 is configured so that one end is in contact with the common terminal 190D and the other end is in contact with the normally closed terminal 190B, and the switch is in the normal open state; Figure 6F As shown, when the actuator 130 is in the third position, the first actuator block 140A is not in contact with the rocker arm 150. Under the action of the first return spring 150A, the rocker arm 150 swings to the side away from the first return spring 150A. At this time, the control lever 170 is configured so that one end is in contact with the common terminal 190D and the other end is in contact with the normally closed terminal 190B, and the switch is in the normal open state.

[0068] In this embodiment, as Figure 6G-6I As shown, a second return spring 210B is disposed between the switch housing 100 and the slider 210. The second return spring 210B is configured to move the slider 210 to the starting position after the second actuator 200 disengages. Specifically, a socket 210C is provided on one side of the slider 210. The second return spring 210B is arranged laterally, with one end inserted into the socket 210C and the other end abutting against the inner wall of the switch housing 100. The number of second return springs 210B and sockets 210C can be reasonably configured as needed. In addition, a second contact spring 210D is disposed between the slider 210 and the second plunger 220. The second contact spring 210D is configured to maintain pressure on the operating lever 170 throughout the movement of the second plunger 220. The bottom of the slider 210 is provided with an insertion groove 210E, and the top of the second plunger 210 is provided with an axially oriented receiving groove 210F. The top of the second contact spring 210D abuts against the insertion groove 210E, and the bottom of the second contact spring 210D is sleeved in the receiving groove 210E. To facilitate the movement of the second plunger 210, the bottom of the second plunger 210 is configured as an arc shape.

[0069] In this embodiment, as Figure 6G-6I As shown, a second actuator block 200A protrudes downward from one side of the bottom of the second actuator 200. A second inclined surface 200B is formed on the bottom side of the second actuator block 200A near the slider 210. A push block 200C is fixed on the bottom side of the second actuator block 200A away from the slider 210. The top surface of the push block 200C is flush with the bottom surface of the second inclined surface 200B. A third inclined surface 210G is formed on the top side of the slider 210 opposite to the second actuator block 200A. The cooperation of the second inclined surface 200B and the third inclined surface 210G facilitates the second actuator 200 pressing the slider 210 to move slidably. Figure 6G As shown, when the actuator 130 is in the first position, the second actuator block 200A is embedded between the slider 210 and the inner wall of the switch housing 100. At this time, the operating lever 170 is configured such that one end contacts the common terminal 190D and the other end contacts the normally open terminal 190C, and the switch is in the normally closed state; Figure 6H As shown, when the actuator 130 is in the second position, the second inclined surface 200B of the second actuator block 200A is embedded between the slider 210 and the inner side of the switch housing 100. At this time, the operating lever 170 is configured such that one end contacts the common terminal 190D and the other end contacts the normally open terminal 190C, and the switch is in the normally closed state; Figure 6IAs shown, when the actuator 130 is in the third position, the push block 200C does not contact the slider 210, and the push block 200C abuts against the inner side of the switch housing 100. At this time, the operating lever 170 is configured to have one end in contact with the common terminal 190D and the other end in contact with the normally closed terminal 190B, and the switch is in the normal open state.

[0070] In this embodiment, as Figure 5 As shown, the first plunger 160 and its corresponding lever 170 control two sets of electrical terminals, and the second plunger 220 and its corresponding lever 170 control one set of electrical terminals. In other embodiments, the first plunger 160 and its corresponding lever 170 can control one or more sets of electrical terminals, and the second plunger 220 and its corresponding lever 170 can control two or more sets of electrical terminals. Furthermore, the arrangement of the electrical terminals corresponding to the first plunger 160 is the opposite of that corresponding to the second plunger 220; that is, the electrical terminals corresponding to the first plunger 160, from back to front, are a common terminal 190D, a normally closed terminal 190B, and a normally open terminal 190C, while the electrical terminals corresponding to the second plunger 220, from back to front, are a normally open terminal 190C, a normally closed terminal 190B, and a common terminal 190D. Therefore, when the electrical terminal corresponding to the first plunger 160 is in the open state, the electrical terminal corresponding to the second plunger 220 is also in the open state; when the electrical terminal corresponding to the first plunger 160 is in the closed state, the electrical terminal corresponding to the second plunger 220 is in the open or closed state, which can realize asynchronous operation of each circuit. Accordingly, the circuits of Embodiment 1 and Embodiment 2 are synchronous operation.

[0071] like Figures 7A-7BThe illustration shows a third embodiment of the push-pull switch of this application. The difference from the first or second embodiment is that the push-pull switch further includes a terminal housing 230, which is detachably connected to the switch housing 100. A third sealing element 240 is disposed at the connection between the terminal housing 230 and the switch housing 100. The terminal housing 230 has a receiving cavity 230A corresponding to each set of electrical terminals. Specifically, the third sealing element 240 is disposed between the second housing member 100B and the terminal housing 230. The terminal housing 230 tightly presses against the third sealing element 240, enabling the push-pull switch to meet the IP67 waterproof and dustproof standard. Furthermore, the terminal housing 230 can protect the electrical terminals exposed outside the switch housing 100. In other embodiments, a sealing material, such as applying adhesive to the outer surface of the electrical terminals, can be used to prevent oxidation of the electrical terminals due to moisture contact. Alternatively, at least one positioning block 230B is fixed to one side of the terminal housing 230, and a positioning notch 100F is provided on one side of the second housing member 100B corresponding to the position of the positioning block 230B. When the terminal housing 230 and the second housing member 100B are tightly fitted, the positioning block 230B is embedded in the corresponding positioning notch 100F. This structure is a foolproof design to prevent the terminal housing 230 from being inserted from the wrong direction. In addition, the terminal housing 230 and the switch housing 100 can be detachably connected by a snap-fit ​​mechanism. Specifically, the two sides of the switch housing 100 have snap-fit ​​members 100G extending towards the electrical terminals, and the snap-fit ​​members 100G have snap-fit ​​holes 100H. The two sides of the terminal housing 230 have protrusions 230C protruding outwards corresponding to the positions of the snap-fit ​​holes 100H. When the terminal housing 230 and the second housing member 100B are tightly fitted, the protrusions 230C are snapped into the snap-fit ​​holes 100H. In other embodiments, the snap-fit ​​holes 100H can also be replaced by grooves.

[0072] like Figures 8A-8BThe illustration shows a fourth embodiment of the push-pull switch of this application. The difference from the third embodiment is that the push-pull switch further includes at least one set of terminals 250. Each set of terminals 250 corresponds one-to-one with each set of electrical terminals. One end of each terminal 250 is connected to a cable, and the other end is inserted into the receiving cavity 230A of the terminal housing 230 and contacts the corresponding electrical terminal. The detachable terminals 250 allow the push-pull switch to provide both board-based (PCB-connected) and wire-based (cable-connected) connection methods. Alternatively, a slider 250A protrudes outward from one side of the terminal 250, and a stop 230D protrudes from the receiving cavity 230A of the terminal housing 230 at the position corresponding to the slider 250A. When the other end of the terminal 250 is inserted into the receiving cavity 230A, the stop 230D can abut against the slider 250A. This structure is a unidirectional insertion design, ensuring that the terminal 250 will not be pulled out due to cable pulling after insertion. Furthermore, the bottom of the stop block 230D and the top of the slider 250A are both constructed as bevels. The slider 250A is a structure with a certain degree of elasticity formed by bending a portion of one side of the terminal 250 outwards, so that the terminal 250 can be smoothly inserted into the receiving cavity 230A. After all the terminals 250 are inserted into the receiving cavity 230A of the terminal housing 230, the terminal housing 230 is then tightly fitted with the second housing component 100B, which can realize the connection and conduction of all terminals 250 and their corresponding electrical terminals, making the connection of the terminals 250 more convenient.

[0073] In view of the above, it should be understood that the embodiments of this application can provide various advantages over the prior art. First, the sweeping motion of the lever 170 between the normally open and normally closed positions can prevent sparking, and the push-pull switch of this application can also provide a momentary function, allowing temporary start-up. Second, the push-pull switch of this application can be configured with two or three positions and can also provide different electrical configurations to adapt to various applications. In addition, by providing inlet protection at the opening of the switch housing 100 through the first sealing element 110 and inlet protection between the first housing member 100A and the second housing member 100B through the second sealing element 120, the push-pull switch can achieve an IP67 protection safety level.

[0074] Those skilled in the art will understand that the application described herein is susceptible to variations and modifications beyond those specifically described, without departing from the scope of this application. All such variations and modifications that are obvious to those skilled in the art should be considered to fall within the spirit and scope of this application as broadly described above. It should be understood that this application includes all such variations and modifications. This application also includes all steps and features individually or collectively referenced or indicated in the specification, as well as any combination and all combinations of any two or more steps or features.

[0075] Any reference to prior art in this specification is not, and should not be construed as, an admission or in any way an implication that such prior art is part of common general knowledge.

[0076] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this utility model are within the protection scope of this utility model.

Claims

1. A push-pull switch, characterized in that, include: A switch housing, wherein terminal components are arranged in the switch housing, and the terminal components include at least one set of electrical terminals; An actuator is configured for push-pull movement between a first position and a second position through an orifice in the switch housing, wherein in the first position the actuator is pushed inward from the switch housing through the orifice, and in the second position the actuator is pulled outward from the switch housing through the orifice. A first actuator, operably connected to the actuator rod, is configured to slidably move within the switch housing in response to a push-pull movement of the actuator rod. A rocker arm is movably mounted within the switch housing and operably connected to the first actuator. A first plunger is mounted on the bottom of the rocker arm. The rocker arm is slidably moved within the switch housing in response to the first actuator. The rocker arm is configured to swing within the switch housing so that the first plunger swings within the switch housing. A joystick, operably connected to the first plunger, is configured to swing responsively to the first plunger within the switch housing to sweep the joystick relative to at least one set of the electrical terminals between normally open and normally closed positions.

2. The push-pull switch according to claim 1, characterized in that: The push-pull switch also includes a first sealing element arranged around the actuator to prevent particles, dust, and water from entering the switch housing through the orifice.

3. The push-pull switch according to claim 1 or 2, characterized in that: The switch housing includes a first housing component and a second housing component detachably mounted on the first housing component; the push-pull switch also includes a second sealing element disposed between the first housing component and the second housing component to prevent particles, dust and water from entering the first housing component through the second housing component.

4. The push-pull switch according to claim 1, characterized in that: The push-pull switch also includes a stop member configured to position the actuator during push-pull movement.

5. The push-pull switch according to claim 1, characterized in that: A return spring is disposed between the switch housing and the actuator rod. The return spring is configured to return the actuator rod to the starting position after it is pulled outward.

6. The push-pull switch according to claim 1, characterized in that: A first return spring is disposed between the switch housing and the rocker arm. The first return spring is configured to allow the rocker arm to swing back to the starting position after the first actuator disengages from contact.

7. The push-pull switch according to claim 1, characterized in that: A first contact spring is disposed between the rocker arm and the first plunger, and the first contact spring is configured to maintain pressure on the rocker arm throughout the swinging process of the first plunger.

8. The push-pull switch according to claim 1, characterized in that: The top of the control lever is provided with two arc-shaped protrusions so that the first plunger abuts between the two arc-shaped protrusions.

9. The push-pull switch according to claim 1, characterized in that: Each set of electrical terminals includes a normally closed terminal and a normally open terminal. In response to the first plunger being able to swing within the switch housing, the lever is configured to contact the normally closed terminal at one end and contact or disconnect the normally open terminal at the other end.

10. The push-pull switch according to claim 1, characterized in that: Each set of electrical terminals includes a normally closed terminal, a normally open terminal, and a common terminal. In response to the first plunger being movable oscillatingly within the switch housing, the lever is configured to contact the common terminal at one end and the normally open or normally closed terminal at the other end.

11. The push-pull switch according to claim 1, characterized in that: The push-pull switch also includes a terminal housing, which is detachably connected to the switch housing. A third sealing element is provided at the connection between the terminal housing and the switch housing. The terminal housing has a receiving cavity for each group of electrical terminals.

12. The push-pull switch according to claim 11, characterized in that: The push-pull switch further includes at least one set of terminals, each set of terminals corresponding to each set of electrical terminals. One end of each terminal is connected to a cable, and the other end of each terminal is inserted into the receiving cavity of the terminal housing and makes contact with the corresponding electrical terminal.

13. A push-pull switch, characterized in that, include: A switch housing, wherein terminal components are arranged in the switch housing, and the terminal components include at least two sets of electrical terminals; An actuator is configured for push-pull movement between a first position and a third position through an orifice in the switch housing. In the first position, the actuator is pushed inward from the switch housing through the orifice, and in the third position, the actuator is pulled outward from the switch housing through the orifice. The second position is located between the first and third positions. The first actuator and the second actuator are both operably connected to the actuator rod. In response to the push-pull movement of the actuator rod, the first actuator and the second actuator are respectively configured to slide within the switch housing. A rocker arm is movably mounted within the switch housing and operably connected to the first actuator. A first plunger is mounted on the bottom of the rocker arm. The rocker arm is slidably moved within the switch housing in response to the first actuator. The rocker arm is configured to swing within the switch housing so that the first plunger swings within the switch housing. A slider is slidably mounted inside the switch housing and operably connected to the second actuator. A second plunger is mounted on the bottom of the slider. In response to the second actuator, the slider can be slidably moved inside the switch housing, thereby enabling the slider to be slidably moved inside the switch housing, so that the second plunger can be slidably moved inside the switch housing. A joystick, operably connected to the first plunger and the second plunger respectively, is oscillatingly movable in response to the first plunger within the switch housing to sweep the joystick relative to at least one set of the electrical terminals between normally open and normally closed positions; And in response to the second plunger being slidably moved within the switch housing, the lever is swept between normally open and normally closed positions relative to at least one set of the electrical terminals.

14. The push-pull switch according to claim 13, characterized in that: The push-pull switch also includes a first sealing element arranged around the actuator to prevent particles, dust, and water from entering the switch housing through the orifice.

15. The push-pull switch according to claim 12 or 13, characterized in that: The switch housing includes a first housing component and a second housing component detachably mounted on the first housing component; the push-pull switch also includes a second sealing element disposed between the first housing component and the second housing component to prevent particles, dust and water from entering the first housing component through the second housing component.

16. The push-pull switch according to claim 13, characterized in that: The push-pull switch also includes a stop member configured to position the actuator during push-pull movement.

17. The push-pull switch according to claim 13, characterized in that: A return spring is disposed between the switch housing and the actuator rod. The return spring is configured to return the actuator rod to the starting position after it is pulled outward.

18. The push-pull switch according to claim 13, characterized in that: A first return spring is disposed between the switch housing and the rocker arm, the first return spring being configured to allow the rocker arm to swing back to the starting position after the first actuator disengages from contact; a second return spring is disposed between the switch housing and the slider, the second return spring being configured to allow the slider to move to the starting position after the second actuator disengages from contact.

19. The push-pull switch according to claim 13, characterized in that: A first contact spring is disposed between the rocker arm and the first plunger, and the first contact spring is configured to maintain pressure on the rocker arm throughout the swinging process of the first plunger; A second contact spring is disposed between the slider and the second plunger, the second contact spring being configured to maintain pressure on the control lever throughout the movement of the second plunger.

20. The push-pull switch according to claim 13, characterized in that: The top of the control lever is provided with two arc-shaped protrusions so that the first plunger abuts between the two arc-shaped protrusions.

21. The push-pull switch according to claim 13, characterized in that: Each set of electrical terminals includes a normally closed terminal and a normally open terminal. In response to the first plunger being able to swing within the switch housing, the lever is configured to contact the normally closed terminal at one end and contact or disconnect the normally open terminal at the other end.

22. The push-pull switch according to claim 13, characterized in that: Each set of electrical terminals includes a normally closed terminal, a normally open terminal, and a common terminal. In response to the first plunger being movable oscillatingly within the switch housing, the lever is configured to contact the common terminal at one end and the normally open or normally closed terminal at the other end.

23. The push-pull switch according to claim 13, characterized in that: The push-pull switch also includes a terminal housing, which is detachably connected to the switch housing. A third sealing element is provided at the connection between the terminal housing and the switch housing. The terminal housing has a receiving cavity for each group of electrical terminals.

24. The push-pull switch according to claim 23, characterized in that: The push-pull switch further includes at least one set of terminals, each set of terminals corresponding to each set of electrical terminals. One end of each terminal is connected to a cable, and the other end of each terminal is inserted into the receiving cavity of the terminal housing and makes contact with the corresponding electrical terminal.

Images