A switch key suitable for a tactile switch

Abstract

The utility model discloses a switch button suitable for touch switch, the switch button includes the base, the top fixed mounting of base has the sealing cover, the inside slide coupling of sealing cover has the button, the bottom fixed connection of button has the metal block, the bottom end of base inside and located the below embedding of metal block has the metal cover, the bottom of button and located the outside installation of metal cover has the rebound mechanism, the rebound mechanism includes the guide rod fixed mounting in the base inside front and back two ends, and the front and back two ends of two sets of guide rods all are equipped with the spring, and the outside of two sets of guide rods and located two sets of spring opposite one end all slide coupling has the movement cover, the utility model discloses through the guide rod rigid restraint spring's axial movement, eliminates the radial deformation risk of traditional two -end fixed spring, and the linkage rod will vertical pressure convert into symmetrical compression force, avoids the rebound of partial load and leads to the weak, the jam or the abnormal sound, ensures the accurate and stable feedback of button.

Description

Technical Field

[0001] This utility model belongs to the field of switch button technology, specifically relating to a switch button suitable for tactile switches. Background Technology

[0002] A tactile switch is an electronic switch, belonging to the category of electronic components. Tactile switches have advantages such as low contact resistance, precise operating force error, and diverse specifications, and are widely used in electronic equipment and white goods.

[0003] According to the search, CN216250489U discloses a silent tactile switch button structure for an intelligent robot, including a housing. Four sleeves are fixedly connected to the inner bottom wall of the housing. Each of the four sleeves contains a locking block. A connecting frame is fixedly connected to the upper end face of the locking blocks. A mounting plate is provided on the upper side of the connecting frame. Two springs are provided on the left and right sides of the upper end face of the connecting frame. The bottom end of the spring is fixedly connected to the connecting frame, and the top end of the spring is fixedly connected to the mounting plate. A connecting block is fixedly connected to the lower end face of the mounting plate. The aforementioned utility model uses a connecting frame, mounting plate, spring, metal block, and metal sleeve. The deformation of the spring causes the metal block to enter the interior of the metal sleeve for contact, which makes it less prone to deformation and allows the silent tactile switch button to be used for a long time. However, the spring is only fixed at both ends and lacks axial support, making it prone to radial bending deformation. Long-term use may cause metal fatigue fracture. After deformation, the spring's movement trajectory will deviate, resulting in weak button rebound, jamming, or abnormal noise, affecting the reliability of touch feedback. Utility Model Content

[0004] (1) Technical problems to be solved In view of the shortcomings of the prior art, the purpose of this utility model is to provide a switch button suitable for tactile switches. This switch button aims to solve the technical problem that the spring of the switch button of the prior art is only axially fixed at both ends and lacks radial support, which makes it prone to bending deformation and fatigue fracture, causing button rebound failure, jamming and abnormal noise, and affecting the reliability of touch feedback.

[0005] (2) Technical solution To solve the above-mentioned technical problems, this utility model provides a switch button suitable for tactile switches. The switch button includes a base, a sealing cover is fixedly installed on the top of the base, a button is slidably connected inside the sealing cover, a metal block is fixedly connected to the bottom of the button, a metal sleeve is embedded in the bottom of the base and below the metal block, and a spring mechanism is installed at the bottom of the button and outside the metal sleeve. The rebound mechanism includes guide rods fixedly installed at both ends of the base. Springs are sleeved at both ends of the two sets of guide rods. Sliding sleeves are slidably connected to the outer side of the two sets of guide rods and at the opposite end of the two sets of springs. A lifting frame is sleeved at the bottom of the button and on the outer side of the metal block. Linkage rods are installed between the front and rear ends of the lifting frame and multiple sets of sliding sleeves. The two ends of the linkage rods are rotatably connected to the lifting frame and the sliding sleeves, respectively.

[0006] When the user presses the button using this technical solution, the bottom metal block and the lifting frame move downwards. The lifting frame pushes the moving sleeve to slide along the guide rod via the linkage rod, compressing the springs on both sides. The guide rod is fixed at both ends of the base, restricting the springs to axial compression only. The rotational connection of the linkage rod converts the vertical pressure into symmetrical spring compression force, dispersing the effect of off-center load. After the button is released, the spring releases its elastic potential energy, pushing the moving sleeve back to its original position. The linkage rod pulls the lifting frame upwards, restoring the button to its initial position. The guide rod forms a radial constraint on the spring, completely solving the buckling problem of traditional springs fixed at both ends. The linkage rod ensures uniform pressure distribution and avoids overload of the spring on one side. When the button is pressed down, the stabilizing plate slides along the connecting sleeve, eliminating lateral wobbling of the button and ensuring vertical movement accuracy.

[0007] Preferably, both ends of the guide rod are fixedly connected to the base via fixed feet, and the inside of the lifting frame is provided with mating holes that are compatible with the metal block.

[0008] Furthermore, connecting sleeves are fixedly connected to the four corners inside the base, and the four corners at the top of the sealing cover are fixedly connected to the connecting sleeves by mounting screws.

[0009] Furthermore, a sealing groove is provided on the top of the base, and a first rubber sealing ring is embedded inside the sealing groove.

[0010] Furthermore, a stabilizing frame is fixedly connected to the outside of the button, and the outside of the stabilizing frame is slidably connected to the connecting sleeve through multiple sets of stabilizing plates.

[0011] Furthermore, a silicone sealing sleeve is fitted on the outside of the button, and a sealing ring is fixedly connected to the top of the sealing cover and outside the silicone sealing sleeve. A second rubber sealing ring is embedded on the inner side of the sealing ring.

[0012] Furthermore, the metal sleeve consists of two sets of half-sleeves, with terminal pieces fixedly connected to the opposite sides of each set of half-sleeves.

[0013] (3) Beneficial effects Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model's switch button utilizes a combined button and rebound mechanism design. When the user presses the button, it causes the bottom metal block and lifting frame to move downwards. The lifting frame, via a linkage rod, pushes the moving sleeve to slide along the guide rod, compressing the springs on both sides. The guide rod is fixed to both ends of the base, restricting the springs to axial compression only. The rotational connection of the linkage rod converts vertical pressure into symmetrical spring compression force, dispersing the effects of off-center load. After releasing the button, the spring releases its elastic potential energy, pushing the moving sleeve back to its original position. The linkage rod pulls the lifting frame upwards, restoring the button to its initial position. The guide rod forms a radial constraint on the spring, completely solving the buckling problem of traditional springs fixed at both ends. The linkage rod ensures uniform pressure distribution, avoiding overload on one side of the spring. When the button is pressed down, the stabilizing plate slides along the connecting sleeve, eliminating lateral wobbling of the button and ensuring vertical movement accuracy. The rigid constraint of the spring's axial movement by the guide rod eliminates the risk of radial deformation of traditional springs fixed at both ends. The linkage rod converts vertical pressure into symmetrical compression force, avoiding weak rebound, jamming, or abnormal noise caused by off-center load, ensuring accurate and stable button feedback. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the sealing cap structure of this utility model; Figure 3 This is a schematic diagram of the internal structure of the base of this utility model; Figure 4 This is a schematic diagram of the metal sleeve structure of this utility model; Figure 5 This is a schematic diagram of the springback mechanism of this utility model; Figure 6 This is a schematic diagram of the button structure of this utility model.

[0015] The markings in the attached diagram are as follows: 1. Base; 101. Connecting sleeve; 102. Mounting screw; 103. Sealing groove; 104. First rubber sealing ring; 2. Sealing cover; 3. Button; 301. Stabilizing frame; 302. Stabilizing plate; 303. Silicone sealing sleeve; 304. Sealing ring; 305. Second rubber sealing ring; 4. Metal block; 5. Metal sleeve; 501. Half sleeve; 502. Terminal piece; 6. Rebound mechanism; 601. Guide rod; 602. Spring; 603. Moving sleeve; 604. Lifting frame; 605. Linkage rod; 606. Fixed support foot; 607. Connecting hole. Detailed Implementation

[0016] This specific embodiment is a switch button suitable for tactile switches, and its structural diagram is shown below. Figure 1-6As shown, the switch button includes a base 1, a sealing cover 2 is fixedly installed on the top of the base 1, a button 3 is slidably connected inside the sealing cover 2, a metal block 4 is fixedly connected to the bottom of the button 3, a metal sleeve 5 is embedded at the bottom of the base 1 and below the metal block 4, and a spring-loaded mechanism 6 is installed at the bottom of the button 3 and outside the metal sleeve 5.

[0017] First, in this embodiment, the specific structure of the springback mechanism 6 is as follows: The rebound mechanism 6 includes guide rods 601 fixedly installed at both ends of the base 1. Springs 602 are sleeved at both ends of the two sets of guide rods 601. Moving sleeves 603 are slidably connected to the outer sides of the two sets of guide rods 601 and at opposite ends of the two sets of springs 602. A lifting frame 604 is sleeved at the bottom of the button 3 and on the outer side of the metal block 4. Linkage rods 605 are installed between the front and rear ends of the lifting frame 604 and the multiple sets of moving sleeves 603. The two ends of the linkage rods 605 are rotatably connected to the lifting frame 604 and the moving sleeves 603, respectively. When the user presses the button 3, the bottom metal block 4 and the lifting frame 604 move downwards. The lifting frame 604 pushes the moving sleeves 603 to slide along the guide rods 601 via the linkage rods 605, compressing the springs 602 on both sides. The guide rods 601 are fixed to both ends of the base 1, limiting the springs. 602 can only be compressed axially. The rotational connection of the linkage rod 605 converts the vertical pressure into the symmetrical compressive force of the spring 602, dispersing the influence of off-center load. After the button 3 is released, the spring 602 releases its elastic potential energy, pushing the moving sleeve 603 back to its original position. The linkage rod 605 pulls the lifting frame 604 up, allowing the button 3 to return to its initial position. The guide rod 601 forms a radial constraint on the spring 602, completely solving the buckling problem of the traditional fixed spring 602 at both ends. The linkage rod 605 ensures uniform pressure distribution and avoids overload of the spring 602 on one side. The rigid constraint of the axial movement of the spring 602 by the guide rod 601 eliminates the risk of radial deformation of the traditional fixed spring 602 at both ends. The linkage rod 605 converts the vertical pressure into a symmetrical compressive force, avoiding weak rebound, jamming, or abnormal noise caused by off-center load, ensuring accurate and stable button feedback.

[0018] Furthermore, both ends of the guide rod 601 are fixedly connected to the base 1 via fixed feet 606. The lifting frame 604 has a mating hole 607 inside that is compatible with the metal block 4. The metal block 4 at the bottom of the button 3 is mated with the lifting frame 604 via the mating hole 607. The guide rod 601 is fixed via fixed feet 606. The lifting frame 604 moves coaxially with the metal block 4 along the mating hole 607, thereby enhancing the stability of the button 3 when it is pressed down.

[0019] Then, connecting sleeves 101 are fixedly connected to the four corners inside the base 1, and the four corners at the top of the sealing cover 2 are fixedly connected to the connecting sleeves 101 by mounting screws 102. The sealing cover 2 is fixedly connected to the connecting sleeves 101 inside the base 1 by the four corner mounting screws 102, ensuring that the sealing cover 2 and the base 1 are rigidly locked to prevent loosening or misalignment.

[0020] Furthermore, a sealing groove 103 is provided on the top of the base 1, and a first rubber sealing ring 104 is embedded inside the sealing groove 103. After the sealing cover 2 is fixed to the base 1, the fitted first rubber sealing ring 104 prevents external dust and liquid from entering the interior of the base 1 and ensures the sealing performance.

[0021] The button 3 is fixedly connected to a stabilizer 301 on its outer side, and the outer side of the stabilizer 301 is slidably connected to the connecting sleeve 101 through multiple sets of stabilizer plates 302. When the button 3 is pressed down, the stabilizer plate 302 slides along the connecting sleeve 101 to eliminate the lateral sway of the button 3 and ensure the vertical movement accuracy.

[0022] Secondly, a silicone sealing sleeve 303 is provided on the outside of the button 3. A sealing ring 304 is fixedly connected to the top of the sealing cover 2 and outside the silicone sealing sleeve 303. A second rubber sealing ring 305 is embedded in the inner side of the sealing ring 304. The silicone sealing sleeve 303 and the second rubber sealing ring 305 form a double sealing structure to completely isolate moisture or dust and extend the switch life.

[0023] Finally, the metal sleeve 5 consists of two sets of half-sleeves 501. Each set of half-sleeves 501 has a terminal piece 502 fixedly connected to one side of the opposite side. The two sets of half-sleeves 501 are designed separately for easy assembly. The exposed terminal piece 502 enables quick circuit connection and avoids internal wire tangling.

[0024] When using the switch button of this technical solution, pressing button 3 causes the bottom metal block 4 and the lifting frame 604 to move downwards. The lifting frame 604 pushes the moving sleeve 603 to slide along the guide rod 601 via the linkage rod 605, compressing the springs 602 on both sides. The guide rod 601 is fixed to both ends of the base 1, restricting the springs 602 to only axial compression. The rotational connection of the linkage rod 605 converts the vertical pressure into symmetrical spring 602 compression force, dispersing the effect of off-center load. After releasing button 3, the spring 602 releases its elastic potential energy, pushing the moving sleeve 603 back to its original position. The linkage rod 605 pulls the lifting frame 604 upwards, causing button 3 to return to its initial position. The guide rod 601 forms a radial constraint on the spring 602, completely solving the buckling problem of the traditional fixed spring 602 at both ends. The linkage rod 605 ensures uniform pressure distribution and avoids overload of the spring 602 on one side. When the button 3 is pressed down, the stabilizing plate 302 slides along the connecting sleeve 101, eliminating the lateral wobbling of the button 3 and ensuring the accuracy of vertical movement. This utility model eliminates the risk of radial deformation of the traditional fixed spring 602 by rigidly constraining the axial movement of the spring 602 with the guide rod 601. The linkage rod 605 converts the vertical pressure into symmetrical compressive force, avoiding weak rebound, jamming or abnormal noise caused by uneven load, and ensuring accurate and stable button feedback.

[0025] 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 technical solution are within the protection scope of this utility model.

Claims

1. A switch button suitable for a tactile switch, the switch button comprising a base (1); characterized in that, A sealing cover (2) is fixedly installed on the top of the base (1). A button (3) is slidably connected inside the sealing cover (2). A metal block (4) is fixedly connected to the bottom of the button (3). A metal sleeve (5) is embedded at the bottom of the base (1) and below the metal block (4). A spring mechanism (6) is installed at the bottom of the button (3) and outside the metal sleeve (5). The rebound mechanism (6) includes guide rods (601) fixedly installed at the front and rear ends inside the base (1). Springs (602) are sleeved at both ends of the two sets of guide rods (601). Sliding sleeves (603) are slidably connected to the outer side of the two sets of guide rods (601) and at the opposite end of the two sets of springs (602). A lifting frame (604) is sleeved at the bottom of the button (3) and on the outer side of the metal block (4). Linkage rods (605) are installed between the front and rear ends of the lifting frame (604) and multiple sets of sliding sleeves (603). The two ends of the linkage rods (605) are rotatably connected to the lifting frame (604) and the sliding sleeves (603) respectively.

2. A switch button suitable for a tactile switch according to claim 1, characterized in that, The left and right ends of the guide rod (601) are fixedly connected to the base (1) through fixed support feet (606), and the inside of the lifting frame (604) is provided with a docking hole (607) that is compatible with the metal block (4).

3. A switch button suitable for a tactile switch according to claim 1, characterized in that, The four corners inside the base (1) are all fixedly connected to the connecting sleeves (101), and the four corners at the top of the sealing cover (2) are all fixedly connected to the connecting sleeves (101) by mounting screws (102).

4. A switch button suitable for a tactile switch according to claim 1, characterized in that, The top of the base (1) is provided with a sealing groove (103), and a first rubber sealing ring (104) is embedded inside the sealing groove (103).

5. A switch button suitable for a tactile switch according to claim 3, characterized in that, The button (3) is fixedly connected to a stabilizer (301) on the outside, and the outside of the stabilizer (301) is slidably connected to the connecting sleeve (101) through multiple sets of stabilizer plates (302).

6. A switch button suitable for a tactile switch according to claim 1, characterized in that, The button (3) is fitted with a silicone sealing sleeve (303) on its outer side. A sealing ring (304) is fixedly connected to the top of the sealing cover (2) and to the outside of the silicone sealing sleeve (303). A second rubber sealing ring (305) is embedded in the inner side of the sealing ring (304).

7. A switch button suitable for a tactile switch according to claim 1, characterized in that, The metal sleeve (5) consists of two sets of half sleeves (501), and each set of half sleeves (501) has a terminal piece (502) fixedly connected to the opposite side of each side.

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