Durable silica gel key

Abstract

The utility model discloses a durable silica gel button, which comprises a circuit board, a mounting shell arranged on the circuit board, a mounting hole arranged on the mounting shell, a silica gel button movably arranged in the mounting hole, an empty slot arranged on the silica gel button in a penetrating manner, and a detachable button arranged on the empty slot, a plurality of supporting sleeves are arranged on the circuit board, a lower pressing plate is arranged in the silica gel key, a plurality of guide inserting parts capable of being arranged in the supporting sleeves are arranged on the periphery of the lower pressing plate at intervals, a limiting part capable of limiting the moving positions of the guide inserting parts is arranged on the lower pressing plate, an adjustable conductive part is arranged on the limiting part, and the conductive part is connected with the circuit board. According to an existing meter, the key strength can be adjusted, the key pressing hand feeling is improved, and character marks can be replaced in the prior art.

Description

Technical Field

[0001] The utility model relates to the technical field of silica gel buttons, in particular to a durable silica gel button. Background Art

[0002] Modern electronic calculators are handheld electronic machines that can perform mathematical operations. They have integrated circuit chips, but their structure is much simpler than that of computers. They can be said to be the first generation of electronic computers (computers), and their functions are also weaker, but they are more convenient and cheap. They can be widely used in commercial transactions and are one of the necessary office supplies. In addition to displaying calculation results, they often have overflow indications, error indications, etc. The power supply of the calculator uses an AC converter or battery. The battery can be recharged by an AC converter or a solar converter. In order to save energy, calculators use large-scale integrated circuits made by CMOS technology. With the development of society, people are using calculators more and more commonly. However, there are often many problems in the use of calculator keys. For example, due to frequent pressing of the keys, the calculator keys are easily damaged and cannot be returned to their original positions over time. In addition, it is inconvenient to use and has a short service life.

[0003] The strength of existing calculator keys cannot be adjusted, which affects the feel of pressing the keys and further affects the efficiency of operation. In addition, similar conductive rubber keys in the prior art generally have text labels printed on the surface of the keycaps. However, since some keys need to be used frequently, the text labels thereon are easily worn out, making it difficult to see the text labels clearly and inconvenient to use. Utility Model Content

[0004] The purpose of the utility model is to provide a durable silicone keypad that can solve at least one of the above technical problems. The technical solution of the utility model is as follows:

[0005] A durable silicone key, comprising: a circuit board, a mounting shell is provided on the circuit board, a mounting hole is provided on the mounting shell, a silicone key is movably arranged in the mounting hole, an empty slot is penetrated through the silicone key, a disassembly button is provided on the empty slot, a plurality of support sleeves are provided on the circuit board, a lower pressure plate is provided in the silicone key, a plurality of guide plug-in parts which can be arranged in the support sleeve are provided at intervals on the periphery of the lower pressure plate, a limiting part which can limit the moving position of the guide plug-in part is provided on the lower pressure plate, and an adjustable conductive part is provided on the limiting part.

[0006] Furthermore, the disassembly button includes a silicone press plate arranged in the empty groove, a chamfered snap edge is arranged around the periphery of the silicone press plate, a snap groove is arranged in the empty groove, the snap edge is snapped into the snap groove, and disassembly grooves are symmetrically arranged on the silicone press plate.

[0007] Furthermore, the guide plug-in part includes plug-in rods fixed at intervals on the periphery below the lower pressure plate, a clamping block is fixed at the lower end of each of the plug-in rods, the plug-in rods are arranged in adjacent support sleeves through the clamping block limit sleeve, and a spring is fixedly connected between each of the plug-in rods and the adjacent support sleeves.

[0008] Furthermore, the limiting part includes a clearance groove arranged above the lower pressure plate, a first spur gear is sleeved in the clearance groove, a threaded sleeve is provided on the lower pressure plate and passes through each of the plug-in rods, a screw is fixed in each of the support sleeves, the screw and the threaded sleeve are threadedly matched with each other, a second spur gear is fixed above each of the threaded sleeves, and each of the second spur gears is meshed with the first spur gear.

[0009] Furthermore, the conductive part includes a threaded rod fixedly arranged below the first spur gear and passing through the lower pressure plate, a cross screw is inserted through the threaded rod, a connecting rod is movably inserted in the cross screw, a screw sleeve is fixed at the end of the connecting rod, and the screw sleeve and the threaded rod are threadedly matched.

[0010] Preferably, identification words are provided in the middle of the silicone press plate.

[0011] Preferably, a cross torsion groove is provided in the middle of the first spur gear.

[0012] In summary, the beneficial effects of the present invention compared with the prior art are as follows:

[0013] The utility model provides a durable silicone keypad, which when used, a user presses the silicone keypad to move along a mounting hole, and the silicone keypad moves in a supporting sleeve through a guide plug-in portion at this time, so that the conductive portion moves toward a circuit board direction, and when it is necessary to adjust the gap of the silicone keypad when pressed, the moving position of the guide plug-in portion is limited by a limiting portion, and when an identification pattern on the keypad is worn, the user can replace the identification pattern on the keypad by replacing a disassembly button. Compared with the prior art, the prior art can adjust the keypad strength, improve the feel of pressing the keypad, and can replace text labels. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional schematic diagram of the utility model.

[0015] Figure 2 It is a schematic cross-sectional view of the utility model.

[0016] Figure 3 It is an exploded schematic diagram of the utility model.

[0017] Explanation of the reference numerals in the accompanying drawings: 1. circuit board; 2. mounting shell; 3. mounting hole; 4. silicone button; 5. empty slot; 6. disassembly button; 7. support sleeve; 8. lower pressure plate; 9. guide plug-in portion; 10. limiting portion; 11. conductive portion; 61. silicone button; 62. buckle edge; 63. buckle slot; 64. disassembly slot; 91. plug-in rod; 92. block; 93. spring; 101. avoidance slot; 102. first spur gear; 103. threaded sleeve; 104. screw rod; 105. second spur gear; 111. threaded rod; 112. cross screw; 113. connecting rod; 114. screw sleeve; 611. identification words; 1021. cross twist groove. DETAILED DESCRIPTION

[0018] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods:

[0019] like Figures 1 to 3 A durable silicone key is shown, characterized in that it includes: a circuit board 1, a mounting shell 2 is provided on the circuit board 1, a mounting hole 3 is provided on the mounting shell 2, a silicone key 4 is movably arranged in the mounting hole 3, a slot 5 is penetrated through the silicone key 4, a disassembly button 6 is provided on the slot 5, a plurality of support sleeves 7 are provided on the circuit board 1, a lower pressure plate 8 is provided in the silicone key 4, a plurality of guide plug-in parts 9 which can be arranged in the support sleeve 7 are provided at intervals on the periphery of the lower pressure plate 8, a limiting part 10 which can limit the moving position of the guide plug-in part 9 is provided on the lower pressure plate 8, and an adjustable conductive part 11 is provided on the limiting part 10.

[0020] A durable silicone key of the above structure is used. When the user presses the silicone key 4, the silicone key 4 moves along the mounting hole 3. The silicone key 4 moves in the support sleeve 7 through the guide plug-in part 9, so that the conductive part 11 moves toward the circuit board 1. When it is necessary to adjust the gap of the silicone key 4 when it is pressed, the movement position of the guide plug-in part 9 is limited by the limiting part 10. When the identification pattern on the key is worn, the user can replace the identification pattern on the key by replacing the disassembly button 3. Compared with the existing technology, the existing device can adjust the key strength and improve the feel of pressing the key, and the existing device can replace the text logo.

[0021] like Figure 3As shown, in some embodiments of the utility model, the disassembly button 6 includes a silicone press plate 61 arranged in the empty slot 5, an identification word 611 is provided in the middle of the silicone press plate 61, a chamfered snap edge 62 is provided around the periphery of the silicone press plate 61, a snap groove 63 is provided in the empty slot 5, the snap edge 62 is snapped into the snap groove 63, and disassembly grooves 64 are symmetrically provided on the silicone press plate 61. When the user needs to replace the identification word 611, the user presses the disassembly groove 64 with a finger to deform the silicone press plate 61. The user then removes the silicone press plate 61. When installing, the user only needs to snap the silicone press plate 61 into the empty slot 5. At this time, the user only needs to snap the silicone press plate 61 into the empty slot 5. At this time, the silicone press plate 61 is provided with a chamfered snap edge 62 around the periphery to snap into the snap groove 63 provided in the empty slot 5.

[0022] like Figure 3 As shown, in some embodiments of the utility model, the guide plug-in part 9 includes a plug-in rod 91 fixed at intervals on the periphery below the lower pressure plate 8, and a block 92 is fixed at the lower end of each of the plug-in rods 91. The plug-in rod 91 is limited by the block 92 and is sleeved in the adjacent support sleeve 7. A spring 93 is fixedly connected between each of the plug-in rods 91 and the adjacent support sleeve 7. When the user presses the silicone button 4, the lower pressure plate 8 is driven to move downward at the same time. When the lower pressure plate 8 moves, it drives multiple plug-in rods 91 on the periphery below it to move along the support sleeve 7. When the support sleeve 7 moves, it can be limited by the block 92 and sleeved in the adjacent support sleeve 7, and the spring 93 resets the plug-in rod 91 and rebounds.

[0023] like Figure 3 As shown, in some embodiments of the utility model, the limiting portion 10 includes an air avoidance groove 101 arranged above the lower pressure plate 8, a first spur gear 102 is sleeved in the air avoidance groove 101, a cross torsion groove 1021 is provided in the middle of the first spur gear 102, a threaded sleeve 103 is movably sleeved on the lower pressure plate 8 and passes through each of the plug-in rods 91, a screw 104 is fixedly provided in each of the support sleeves 7, the screw 104 and the threaded sleeve 103 are threadedly matched with each other, and a screw 104 is fixed above each of the threaded sleeves 103. There is a second spur gear 105, each of which is meshed with the first spur gear 102. When in use, the user rotates the cross torsion groove 1021 to rotate the first spur gear 102. When the first spur gear 102 rotates, the second spur gears 105 are driven to rotate. At this time, each second spur gear 105 drives the threaded sleeve 103 to rotate. The threaded sleeve 103 drives the screw 104 matched with its thread to move up or down. When the screw 104 moves, the distance between the lower pressure plate 8 and the circuit board 1 can be changed.

[0024] like Figure 2 and 3As shown, in some embodiments of the utility model, the conductive part 11 includes a threaded rod 111 fixedly arranged below the first spur gear 102 and passing through the lower pressure plate 8, a cross screw 112 is sleeved through the threaded rod 111, a connecting rod 113 is movably inserted in the cross screw 112, and a screw sleeve 114 is fixed at the end of the connecting rod 113, and the screw sleeve 114 and the threaded rod 111 are threadedly matched. When the user rotates the cross screw 112, the cross screw 112 drives the screw sleeve 114 to rotate through the connecting rod 113, and when the screw sleeve 114 rotates, it moves downward along the threaded rod 111, and at the same time, the screw sleeve 114 moves downward along the cross screw 112 through the connecting rod 113.

[0025] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. The technicians in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and the description are only to illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A durable silicone key, characterized in that: include: A circuit board (1), wherein a mounting shell (2) is provided on the circuit board (1), a mounting hole (3) is provided on the mounting shell (2), a silicone key (4) is movably provided in the mounting hole (3), a hollow slot (5) is provided through the silicone key (4), a disassembly button (6) is provided on the hollow slot (5), a plurality of support sleeves (7) are provided on the circuit board (1), a lower pressing plate (8) is provided in the silicone key (4), a plurality of guide plug-in parts (9) which can be provided in the support sleeve (7) are provided at intervals on the periphery of the lower pressing plate (8), a limiting part (10) which can limit the moving position of the guide plug-in part (9) is provided on the lower pressing plate (8), and an adjustable conductive part (11) is provided on the limiting part (10).

2. A durable silicone key according to claim 1, characterized in that The disassembly button (6) comprises a silicone pressing plate (61) arranged in the empty slot (5), a chamfered buckle edge (62) is arranged around the periphery of the silicone pressing plate (61), a buckle groove (63) is arranged in the empty slot (5), the buckle edge (62) is buckled in the buckle groove (63), and disassembly grooves (64) are symmetrically arranged on the silicone pressing plate (61).

3. A durable silicone key according to claim 1, characterized in that The guide plug-in portion (9) comprises plug-in rods (91) fixed at intervals on the circumference below the lower pressure plate (8), a clamping block (92) is fixed at the lower end of each of the plug-in rods (91), the plug-in rods (91) are limitedly sleeved in the adjacent support sleeve (7) through the clamping block (92), and a spring (93) is fixedly connected between each of the plug-in rods (91) and the adjacent support sleeve (7).

4. A durable silicone key according to claim 3, characterized in that The limiting portion (10) includes a clearance groove (101) arranged above the lower pressure plate (8), a first spur gear (102) is sleeved in the clearance groove (101), a threaded sleeve (103) is movably sleeved on the lower pressure plate (8) and passes through each of the plug-in rods (91), a screw rod (104) is fixedly provided in each of the support sleeves (7), the screw rod (104) and the threaded sleeve (103) are threadedly matched with each other, a second spur gear (105) is fixed above each of the threaded sleeves (103), and each of the second spur gears (105) is meshed with the first spur gear (102).

5. A durable silicone key according to claim 4, characterized in that The conductive part (11) comprises a threaded rod (111) fixedly arranged below the first spur gear (102) and passing through the lower pressure plate (8); a cross screw (112) is sleeved through the threaded rod (111); a connecting rod (113) is movably inserted into the cross screw (112); a screw sleeve (114) is fixed at the end of the connecting rod (113); and the screw sleeve (114) and the threaded rod (111) are threadedly matched.

6. A durable silicone key according to claim 2, characterized in that An identification character (611) is provided in the middle of the silica gel pressing plate (61).

7. A durable silicone key according to claim 4, characterized in that A cross torsion groove (1021) is provided in the middle of the first spur gear (102).

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