A button accessory

Abstract

The present invention discloses a button accessory, including a shell, a push button and an elastic mechanism. The shell is provided with a push button inside, and an elastic mechanism is provided between the push button and the bottom of the shell. The elastic mechanism generates elastic force on the push button to assist the reset of the push button. The elastic mechanism includes a spring, an upper torsion plate and a lower torsion plate. The upper end of the spring is fixedly connected to the upper torsion plate, and the lower end is fixedly connected to the lower torsion plate. The top surface of the upper torsion plate is rotationally connected to the bottom surface of the push button, and the bottom surface of the lower torsion plate is connected to the top surface of the base at the bottom of the shell. The upper torsion plate enables the spring to be rotationally connected to the push button, so that the rotational freedom of the two ends of the spring is not limited during the compression process, and the spring can rotate without deformation when subjected to torque. The technical solution of the present invention can prevent the spring from generating non-elastic deformation due to torque through the rotational connection of the two ends of the spring, thereby improving the life of the spring and the button accessory, and is worthy of vigorous promotion.

Description

Technical Field

[0001] The invention relates to a switch component, in particular to a button accessory. Background Art

[0002] The simplest switch has two pieces of metal called "contacts". When the two contacts touch, the current forms a circuit. When the two contacts are not in contact, the current is open. When selecting the contact metal, you need to consider its degree of corrosion resistance, because most metals will form insulating oxides after oxidation, which will make the contacts unable to work properly. When selecting the contact metal, you also need to consider its conductivity, hardness, mechanical strength, cost, and whether it is toxic. Sometimes the contacts are electroplated with corrosion-resistant metals. Generally, they are plated on the contact surface of the contacts to avoid affecting their performance due to oxides. Sometimes non-metallic conductive materials, such as conductive plastics, are also used on the contact surface. In addition to the contacts, there are also moving parts in the switch to make the contacts conductive or non-conductive. Switches can be divided into lever switches (Toggle switches), push switches, rocker switches, etc. according to the different moving parts, and the moving parts can also be other types of mechanical linkages.

[0003] Switches are classified according to their structure: micro switches, rocker switches, toggle switches, push button switches, key switches, as well as fashionable membrane switches and point switches.

[0004] A push button switch is turned on and off by pressing a push button. In the prior art, push button switches are mostly equipped with compression springs as a rebound mechanism. The compression springs are designed to bear axial loads and produce axial contraction deformation. However, in reality, the springs in push button switches are not only subjected to axial loads. Due to the unbalanced pressing and the eccentric bending of the springs, the springs are subjected to torque and are prone to inelastic deformation, especially for long-stroke buttons. Summary of the invention

[0005] The object of the present invention is to provide a button accessory to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A button accessory comprises a shell, a push button and an elastic mechanism. The shell is provided with a push button inside, and an elastic mechanism is provided between the push button and the bottom of the shell. The elastic mechanism generates elastic force on the push button to assist the push button in resetting and avoid accidental touches caused by slight pressure.

[0008] The elastic mechanism includes a spring, an upper torsion plate and a lower torsion plate, wherein the upper end of the spring is fixedly connected to the upper torsion plate, and the lower end is fixedly connected to the lower torsion plate, the top surface of the upper torsion plate is rotationally connected to the bottom surface of the push button, and the bottom surface of the lower torsion plate is connected to the top surface of the base at the bottom of the housing. The upper torsion plate makes the spring rotationally connected to the push button, so that the rotational freedom of both ends of the spring is not limited during the compression process, and the spring can rotate without deformation under the condition of torque, and the elastic deformation is only caused by pressure, so as to avoid irreversible deformation of the spring.

[0009] As a further solution of the present invention: a guide mechanism is provided between the upper torsion disk and the lower torsion disk, the guide mechanism includes a rod and a cylinder, the rod and the cylinder are clearance-matched, a through hole is provided in the center of the cylinder that is clearance-matched with the rod, the lower end of the rod is inserted into the cylinder, the lower end of the cylinder is connected to the lower torsion disk, the upper end of the rod is connected to the upper torsion disk, and the rod moves along the cylinder body during the longitudinal movement of the upper torsion disk to guide the movement of the upper torsion disk to prevent the upper torsion disk from deviating from the axis during the movement.

[0010] As a further solution of the present invention: the base is provided with a through hole which is in clearance with the rod, the lower end of the rod extends from the base and is connected to a contact or an actuator, and the rod is used as a button to trigger the switch mechanism.

[0011] As a further solution of the present invention: the upper end of the rod passes through the upper torsion plate and extends into the push button. The push button and the upper torsion plate are provided with a sliding hole that matches the clearance of the rod, and one side of the push button is provided with a plug that matches the sliding hole. In case of an accidental touch, since the rod can move freely in the sliding hole, the rod will not move downward during the process of pressing the key. Only when the accidental touch force directly contacts the rod will the rod be driven to move downward, resulting in the length of the lower end of the rod extending out of the base being much less than the predetermined length, resulting in the contact point at the lower end of the rod being unable to contact. In normal use, the plug is inserted into the sliding hole to block the upper part of the sliding hole, so that the rod is limited by the blockage and cannot move in the sliding hole, so that the push button can directly push the rod downward to obtain the predetermined extension length and trigger the switch normally.

[0012] As a further solution of the present invention: the inner edge of the top of the housing is provided with an inwardly protruding retaining ring, the lower edge of the push button is provided with an outwardly protruding retaining ring, the outer diameter of the retaining ring is larger than the inner diameter of the retaining ring. The retaining ring cooperates with the retaining ring to limit the push button to prevent the spring from pushing the push button out.

[0013] As a further solution of the present invention: the rotational connection between the upper torsion plate and the push button is a separation structure between the upper torsion plate and the push button.

[0014] As a further solution of the present invention, the rotation connection between the upper torsion plate and the pressing key is that a rotating shaft is provided at the top center of the upper torsion plate, and a blind hole is provided at the bottom of the pressing key to match the rotating shaft. The upper torsion plate is rotationally connected to the pressing key via the rotating shaft.

[0015] As a further solution of the present invention, the bottom surface of the lower torsion plate is rotatably connected to the top surface of the base at the bottom of the housing. The upper torsion plate and the lower torsion plate respectively rotatably connect the spring to the pressing key and the base, so that the rotational freedom of both ends of the spring is not restricted during compression, and the spring can rotate without deformation under torque, and only elastic deformation is generated due to pressure, thereby avoiding irreversible deformation of the spring.

[0016] As a further solution of the present invention, the rotation connection between the lower torsion plate and the base is that a rotation shaft is provided at the top center of the lower torsion plate, and a blind hole is provided at the bottom of the base to match the rotation shaft. The lower torsion plate is rotationally connected to the base via the rotation shaft.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The technical solution of the present invention uses a rotational connection at both ends of the spring, which can prevent the spring from generating inelastic deformation due to torque, thereby increasing the life of the spring and the button accessory.

[0019] Since the spring of the elastic mechanism of the present invention will not be deformed due to torque, it will not generate a reaction force on the push key, making the push key press smoother.

[0020] The button accessory of the present invention is also provided with an anti-mis-touch mechanism through a rod, thereby avoiding mis-touch of the pressing key. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The structure of the button accessory of the present invention in the first embodiment is shown in FIG. Figure 1 .

[0022] Figure 2 The structure of the button accessory of the present invention in the first embodiment is shown in FIG. Figure 2 .

[0023] Figure 3 The structure of the button accessory of the present invention in the first embodiment is shown in FIG. Figure 3 .

[0024] Figure 4 It is a schematic diagram of the structure of the button accessory of the present invention in the second embodiment.

[0025] Figure 5 It is a schematic diagram of the structure of the button accessory of the present invention in the third embodiment. DETAILED DESCRIPTION

[0026] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0027] See also Figure 1-3A button accessory includes a shell 1, a push button 2 and an elastic mechanism 3. The shell 1 is provided with a push button 2 inside, and an elastic mechanism 3 is provided between the push button 2 and the bottom of the shell 1. The elastic mechanism 3 generates elastic force on the push button 2 to assist the push button 2 in resetting and avoid accidental touches caused by slight pressure.

[0028] The elastic mechanism 3 includes a spring 4, an upper torsion plate 5 and a lower torsion plate 6. The upper end of the spring 4 is fixedly connected to the upper torsion plate 5, and the lower end is fixedly connected to the lower torsion plate 6. The top surface of the upper torsion plate 5 is rotatably connected to the bottom surface of the push button 2, and the bottom surface of the lower torsion plate 6 is connected to the top surface of the base at the bottom of the housing 1. The upper torsion plate 5 makes the spring 4 rotatably connected to the push button 2, so that the rotational freedom of both ends of the spring 4 is not limited during the compression process, and the spring 4 can rotate without deformation under the condition of torque, and the spring 4 is elastically deformed only due to pressure, thereby avoiding irreversible deformation of the spring 4.

[0029] Preferably, a guiding mechanism is provided between the upper torsion disk 5 and the lower torsion disk 6, and the guiding mechanism includes a rod 7 and a cylinder 8. The rod 7 and the cylinder 8 are clearance-matched, and a through hole clearance-matched with the rod 7 is provided at the center of the cylinder 8. The lower end of the rod 7 is inserted into the cylinder 8, and the lower end of the cylinder 8 is connected to the lower torsion disk 6. The upper end of the rod 7 is connected to the upper torsion disk 5. During the longitudinal movement of the upper torsion disk 5, the rod 7 moves along the cylinder body to guide the movement of the upper torsion disk 5 to prevent the upper torsion disk 5 from deviating from the axis during the movement.

[0030] Furthermore, a through hole is provided on the base to be gap-matched with the rod 7, and the lower end of the rod 7 extends from the base and is connected to the contact or the actuator. The rod 7 is used as a button to trigger the switch mechanism.

[0031] Preferably, a retaining ring 9 protruding inward is provided on the inner edge of the top of the housing 1, and a retaining ring 10 protruding outward is provided on the lower edge of the push button 2, and the outer diameter of the retaining ring 10 is larger than the inner diameter of the retaining ring 9. The retaining ring 9 cooperates with the retaining ring 10 to limit the push button 2 to prevent the spring 4 from pushing the push button 2 out.

[0032] Preferably, the rotation connection between the upper torsion plate 5 and the push button 2 is a separation structure between the upper torsion plate 5 and the push button 2. The separation structure makes the two independent, and only friction force exists to limit the rotation when they are in contact.

[0033] Furthermore, the top surface of the upper torsion plate 5 and the bottom surface of the push key 2 are both provided with lubricating oil to reduce friction.

[0034] Preferably, see Figure 2-3 The rotation connection between the upper torsion plate 5 and the push button 2 is that a rotating shaft 11 is provided at the top center of the upper torsion plate 5, and a blind hole with a clearance fit with the rotating shaft 11 is provided at the bottom of the push button 2. The upper torsion plate 5 is rotationally connected to the push button 2 through the rotating shaft 11.

[0035] For further information, see Figure 2 A bearing 12 is provided between the rotating shaft 11 and the pressing key 2 .

[0036] For further information, see Figure 3 A thrust ball bearing 13 is also provided on the rotating shaft 11 , and the thrust ball bearing 13 is provided between the upper torsion plate 5 and the pressing key 2 .

[0037] The working principle of the present invention is that when the push key 2 is pressed down, the spring 4 is compressed. At this time, the spring 4 is subjected to torque due to uneven force factors, and this torque will drive the spring 4 to rotate. At this time, the upper torsion plate 5 and the lower torsion plate 6 at the upper and lower ends of the spring 4 rotate accordingly, thereby avoiding the twisting deformation of the spring 4 itself, and can reduce the reverse torque of the spring 4 on the push key 2 caused by the reaction force, so that the pressing of the push key 2 is smoother.

[0038] When the push button 2 is released, the spring 4 releases its elastic force to drive the push button 2 to reset;

[0039] Embodiment 2

[0040] See also Figure 4 A button accessory includes a shell 1, a push button 2 and an elastic mechanism 3. The shell 1 is provided with a push button 2 inside, and an elastic mechanism 3 is provided between the push button 2 and the bottom of the shell 1. The elastic mechanism 3 generates elastic force on the push button 2 to assist the push button 2 in resetting and avoid accidental touches caused by slight pressure.

[0041] The elastic mechanism 3 includes a spring 4, an upper torsion plate 5 and a lower torsion plate 6. The upper end of the spring 4 is fixedly connected to the upper torsion plate 5, and the lower end is fixedly connected to the lower torsion plate 6. The top surface of the upper torsion plate 5 is rotationally connected to the bottom surface of the push button 2, and the bottom surface of the lower torsion plate 6 is rotationally connected to the top surface of the base at the bottom of the housing 1. The upper torsion plate 5 and the lower torsion plate 6 respectively make the spring 4 rotationally connected to the push button 2 and the base, so that the rotational freedom of both ends of the spring 4 is not limited during the compression process, and the spring 4 can rotate without deformation when subjected to torque, and the elastic deformation is only caused by pressure, thereby avoiding irreversible deformation of the spring 4.

[0042] The rotation connection between the lower torsion plate 6 and the base is that the lower torsion plate 6 and the base are separated. The separation structure makes the two independent, and only friction force exists to limit the rotation when in contact.

[0043] Preferably, the rotational connection between the lower torsion plate 6 and the base is that a rotation shaft 11 is provided at the top center of the lower torsion plate 6, and a blind hole is provided at the bottom of the base to be clearance-matched with the rotation shaft 11. The lower torsion plate 6 is rotationally connected to the base via the rotation shaft 11.

[0044] Furthermore, a bearing 12 is provided between the rotating shaft 11 and the base.

[0045] Embodiment 3

[0046] See also Figure 5 A button accessory includes a shell 1, a push button 2 and an elastic mechanism 3. The shell 1 is provided with a push button 2 inside, and an elastic mechanism 3 is provided between the push button 2 and the bottom of the shell 1. The elastic mechanism 3 generates elastic force on the push button 2 to assist the push button 2 in resetting and avoid accidental touches caused by slight pressure.

[0047] The elastic mechanism 3 includes a spring 4, an upper torsion plate 5 and a lower torsion plate 6. The upper end of the spring 4 is fixedly connected to the upper torsion plate 5, and the lower end is fixedly connected to the lower torsion plate 6. The top surface of the upper torsion plate 5 is rotatably connected to the bottom surface of the push button 2, and the bottom surface of the lower torsion plate 6 is connected to the top surface of the base at the bottom of the housing 1. The upper torsion plate 5 makes the spring 4 rotatably connected to the push button 2, so that the rotational freedom of both ends of the spring 4 is not limited during the compression process, and the spring 4 can rotate without deformation under the condition of torque, and the spring 4 is elastically deformed only due to pressure, thereby avoiding irreversible deformation of the spring 4.

[0048] A guide mechanism is provided between the upper torsion plate 5 and the lower torsion plate 6, and the guide mechanism includes a rod 7 and a cylinder 8. The rod 7 and the cylinder 8 are in clearance fit, and a through hole is provided in the center of the cylinder 8 to be in clearance fit with the rod 7. The lower end of the rod 7 is inserted into the cylinder 8, and the lower end of the cylinder 8 is connected to the lower torsion plate 6. The upper end of the rod 7 is connected to the upper torsion plate 5, and the upper end of the rod 7 passes through the upper torsion plate 5 and extends into the pressing key 2. The pressing key 2 and the upper torsion plate 5 are provided with a sliding hole 71 that is in clearance fit with the rod 7, and one side of the pressing key 2 is provided with a plug that is in clearance fit with the sliding hole 71. In case of an accidental touch, since the rod 7 can move freely in the sliding hole 71, the pressing key 2 will not cause the rod 7 to move downward during the pressing process. Only when the accidental touch force directly contacts the rod 7 will the rod 7 be driven to move downward, resulting in the length of the lower end of the rod 7 extending out of the base being much less than the predetermined length, resulting in the contact point at the lower end of the rod 7 being unable to contact. During normal use, the plug is inserted into the sliding hole 71 to block the upper part of the sliding hole 71, so that the rod 7 is limited by the plug and cannot move in the sliding hole 71, so that the pressing key 2 can directly push the rod 7 downward to obtain the predetermined extension length and trigger the switch normally.

[0049] Furthermore, a through hole is provided on the base to be gap-matched with the rod 7, and the lower end of the rod 7 extends from the base and is connected to the contact or the actuator. The rod 7 is used as a button to trigger the switch mechanism.

[0050] Furthermore, when the push button 2 is not pressed, a gap is provided between the upper end of the rod 7 and the upper end of the sliding hole 71 .

[0051] Further, the blocking may be connected to the push button 2 via a connecting strip.

[0052] The above describes in detail the preferred implementation of this patent, but this patent is not limited to the above implementation. Various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of this patent.

Claims

1. A button accessory, characterized in that: It comprises a shell, a push button and an elastic mechanism, wherein the shell is provided with a push button inside, and an elastic mechanism is provided between the push button and the bottom of the shell, and the elastic mechanism generates elastic force on the push button to assist the push button in resetting; The elastic mechanism includes a spring, an upper torsion plate and a lower torsion plate, the upper end of the spring is fixedly connected to the upper torsion plate, the lower end is fixedly connected to the lower torsion plate, the top surface of the upper torsion plate is rotatably connected to the bottom surface of the push key, and the bottom surface of the lower torsion plate is connected to the top surface of the base at the bottom of the shell; the upper torsion plate makes the spring rotatably connected to the push key, so that the rotational freedom of both ends of the spring is not restricted during the compression process of the spring, and it can rotate under torque without deformation, and only elastic deformation is generated due to pressure, thereby avoiding irreversible deformation of the spring; a guiding mechanism is provided between the upper torsion plate and the lower torsion plate, the guiding mechanism includes a rod and a cylinder, the rod and the cylinder are clearance-matched, and a through hole is provided in the center of the cylinder that is clearance-matched with the rod, the lower end of the rod is inserted into the cylinder, the lower end of the cylinder is connected to the lower torsion plate, and the upper end of the rod is connected to the upper torsion plate, and the rod moves along the cylinder during the longitudinal movement of the upper torsion plate to guide the movement of the upper torsion plate to avoid deviation of the upper torsion plate from the axis during movement.

2. The button accessory according to claim 1, characterized in that: The base is provided with a through hole which is gap-matched with the rod, and the lower end of the rod extends out from the base and is connected to the contact or the actuator.

3. The button accessory according to claim 1, characterized in that: The upper end of the rod passes through the upper torsion plate and extends into the push key. The push key and the upper torsion plate are provided with a sliding hole that matches the clearance of the rod. One side of the push key is provided with a plug that matches the sliding hole.

4. The button accessory according to claim 1, characterized in that: The inner edge of the top of the shell is provided with a retaining ring protruding inwardly, and the lower edge of the push button is provided with a retaining ring protruding outwardly, and the outer diameter of the retaining ring is greater than the inner diameter of the retaining ring.

5. The button accessory according to claim 1, characterized in that: The rotational connection between the upper torsion plate and the push button is a separation structure between the upper torsion plate and the push button.

6. The button accessory according to claim 1, characterized in that: The rotation connection between the upper torsion plate and the pressing key is that a rotating shaft is arranged at the top center of the upper torsion plate, and a blind hole which is gap-matched with the rotating shaft is arranged at the bottom of the pressing key.

7. The button accessory according to claim 1, characterized in that: The bottom surface of the lower torsion plate is rotatably connected to the top surface of the base at the bottom of the shell.

8. The button accessory according to claim 7, characterized in that: The rotation connection between the lower torsion plate and the base is that a rotating shaft is provided at the top center of the lower torsion plate, and a blind hole that matches the rotating shaft with a clearance is provided at the bottom of the base.

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