Small-swing-angle double-rocker transmission type key switch

Abstract

The utility model discloses a small-swing-angle double-rocker transmission type key switch. The movable contact piece is movably arranged on the swinging piece, and one end of the movable contact piece is in contact with the conduction piece; the sliding block is movably arranged in the base and is movably connected with the swinging piece; the movable contact piece is rotatably arranged on the base, and one end of the movable contact piece extends into the base and is in contact with the sliding block; and the double-rocker structure rotates to drive the sliding block to drive the movable contact to act so as to close and break a circuit, and the double-rocker structure comprises a rocker I and a rocker II which are rotatably mounted on the two sides of the base and are in contact with the two ends of the sliding block. According to the utility model, through the design of the double-seesaw structure, the closing and separation of a circuit are more reliable, the swing angle of the key is smaller, and the rotation angle can only reach 1.5-2 degrees; therefore, the flatness of the keys is more flat, the total height of the whole product can be less than or equal to 23mm, the space reserved in the junction box during installation is larger, and the installation is more convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to a switch, concretely refers to a small swing angle double-tilting plate transmission type key switch. BACKGROUND

[0002] The switch in prior art is usually single-tilting plate, and the spring is used to realize the rebound, and the switch has clear touch feedback, but the mechanical structure is large in size, and the switch key rotation angle of single-tilting plate is usually 3-5 degrees, the left and right swing amplitude of single swing piece key is large, and the vertical height is difficult to compress, so that the total height of the switch is difficult to control within 23mm, and the installation flexibility in the compact switch box is limited, and the single transmission design relies on direct mechanical contact, and the rebound force is easy to attenuate due to component wear, and the key is easy to be stuck or the contact is poor after long-term use. UTILITY MODEL CONTENTS

[0003] The utility model discloses a small swing angle double-tilting plate transmission type key switch.

[0004] In order to achieve the above purpose, the utility model provides a small swing angle double-tilting plate transmission type key switch, including base, static contact piece and conducting piece installed on the base and key installed movably on the base, characterized by further including swing piece installed movably on the base, movable contact piece installed movably on the swing piece and contacting with the conducting piece on one end, sliding block installed movably in the base and being connected movably with the swing piece and double-tilting plate structure rotatable installed on the base and contacting with the sliding block on one end, and the double-tilting plate structure includes tilting plate one and tilting plate two rotatable installed on both sides of the base and contacting with both ends of the sliding block.

[0005] Further preferably, the base is provided with an axle hole, the tilting plate one and the tilting plate two are provided with an axle hole matched connection so that the tilting plate one and the tilting plate two are rotatable installed on the base, and the axle is the rotation fulcrum.

[0006] Further preferably, it further includes spring installed in the swing piece and connected with the movable contact piece on one end so that the movable contact piece and the conducting piece are always in contact.

[0007] Further preferably, it further includes swing block arranged in the swing piece and limiting the position of the spring.

[0008] Further preferably, it further includes positioning block arranged on the base, and the positioning block is provided with limiting slot limiting the swing angle position of the movable contact piece.

[0009] Further preferably, it further includes base pressing plate installed on the base.

[0010] Further preferably, the two ends of the key are in contact with the first rocker plate and the second rocker plate.

[0011] The utility model discloses the beneficial effect of: through the design of double rocker plate structure, make the circuit closing and separation more reliable, and the swing angle of key is smaller, and the corner can reach only 1.5~2 degrees, thereby making the flatness of key more flat, thereby making the total height of whole product can be less than or equal to 23mm, thereby having more space in the junction box when installing, more convenient for installation,

[0012] Through the setting of double rocker plate structure and sliding block, swing the swing piece through the sliding block driven by double rocker plate structure, and the swing piece drives the movable contact piece to swing, forms two-stage transmission, and the key hand feeling is better and the circuit breaking and closing are more reliable. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the structure schematic diagram of the utility model;

[0014] Figure 2 It is the local structure schematic diagram of the utility model;

[0015] Figure 3 It is the local structure schematic diagram of the utility model;

[0016] Figure 4 It is the local structure schematic diagram of the utility model;

[0017] Figure 5 It is the local sectional structure schematic diagram of the utility model;

[0018] Figure 6 It is the local sectional structure schematic diagram of the utility model;

[0019] Figure 7 It is the structure schematic diagram of another embodiment of the utility model;

[0020] Figure 8 It is the structure schematic diagram of another embodiment of the utility model.

[0021] Legend: 1, base; 11, positioning block; 12, limit slot; 13, base pressing plate; 14, shaft hole; 2, static contact piece; 3, conducting piece; 4, key; 5, swing piece; 51, movable contact piece; 52, swing block; 6, sliding block; 7, first rocker plate; 71, second rocker plate; 72, spring; 73, shaft. DETAILED DESCRIPTION

[0022] Below, we combine the drawings to make further description to the small swing angle double rocker plate transmission type key switch of the utility model.

[0023] It should be noted that all directional indications such as up, down, left, right, front, back, and the like in the embodiments of the present application are only used to explain the relative position relationship, movement condition and the like between components in a certain specific posture shown in the drawings, and if the specific posture changes, the directional indications also change accordingly.

[0024] In the present application, unless otherwise specifically defined and limited, the terms "connection", "fixation" and the like should be understood broadly; for example, "fixation" can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through intermediate medium, unless otherwise specifically limited. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0025] Referring to Figures 1-8 A small swing angle double-tilting plate transmission type key switch, as shown in the drawings, comprises a base 1, a static contact 2 and a conducting piece 3 mounted on the base 1, and a key 4 movably mounted on the base 1; characterized in that it further comprises a swing piece 5 movably mounted on the base 1, a movable contact 51 movably mounted on the swing piece 5 and in contact with the conducting piece 3 at one end, a sliding block 6 movably connected with the swing piece 5 and movably mounted in the base 1, and a double-tilting plate structure rotatably mounted on the base 1 and having one end extending into the base 1 to contact the sliding block 6, and driving the sliding block 6 to drive the movable contact 51 to act to close and break the circuit by rotation, wherein the double-tilting plate structure comprises a tilting plate one 7 and a tilting plate two 71 rotatably mounted on both sides of the base 1 and in contact with both ends of the sliding block 6;

[0026] The key 4 is movably mounted on the base 1 through the cooperation of the shaft and the shaft hole, the base 1 is provided with a shaft, the key 4 is provided with a shaft hole, and the connection between the shaft and the shaft hole is the fulcrum of the key 4;

[0027] The swing piece is provided with a shaft movably connected with the base, the base is provided with a semicircular arc hole movably connected with the shaft, and the swing piece is movably mounted on the base by clamping the shaft in the semicircular arc hole;

[0028] Through the design of the double-tilting plate structure, the circuit closing and separation is more reliable, and the swing angle of the key 4 is smaller, and the rotation angle can reach only 1.5-2 degrees; so that the flatness of the key 4 is more flat, so that the total height of the whole product can be less than or equal to 23 mm, so that there is more space in the junction box during installation, and the installation is more convenient;

[0029] Through the setting of the double-tilting plate structure and the sliding block 6, the sliding block 6 is driven by the double-tilting plate structure to drive the swing piece 5 to swing through the sliding block 6, and the movable contact 51 is driven to swing by the swing piece 5, forming a two-stage transmission, the key 4 has a better hand feeling and the circuit breaking and closing are more reliable.

[0030] In one embodiment, the base 1 is provided with an axle hole 14, the flap 1 7 and the flap 2 71 are provided with an axle hole 14 matched connection, so that the flap 1 7 and the flap 2 71 can be rotatably installed on the base 1, and the axle 73 is the rotating fulcrum; the flap 1 7 and the flap 2 71 rotate around the axle 73 as the fulcrum.

[0031] In one embodiment, the spring 72 is installed in the swing piece 5 and connected with the movable contact 51 at one end, so that the movable contact 51 is always in contact with the conducting piece 3; through the spring 72, the movable contact 51 is always in contact with the conducting piece 3 by the restoring force of the spring 72.

[0032] In one embodiment, the swing block 52 is arranged in the swing piece 5 to limit the position of the spring 72; through the swing block 52, the position of the spring 72 is limited.

[0033] In one embodiment, the positioning block 1 1 is arranged on the base 1, and the positioning block 1 1 is provided with a limiting groove 1 2 for limiting the swing angle position of the movable contact 51; through the limiting groove 1 2, the swing angle of the movable contact 51 is limited.

[0034] In one embodiment, the base pressing plate 1 3 is installed on the base 1, and the swing piece 5 is movably installed on the base 1 or the base pressing plate 1 3.

[0035] In one embodiment, the key 4 is in contact with the flap 1 7 and the flap 2 71 at both ends.

[0036] In use, when the key 4 on the flap 1 7 is pressed, the key 4 rotates based on the movable connection point with the base 1, the key 4 forms a downward extrusion force on the flap 1 7, the flap 1 7 rotates based on the rotating connection point with the base 1, and the flap 1 7 rotates to drive the sliding block 6 at one end to form a pushing force on the sliding block 6, the sliding block 6 is driven to swing the swing piece 5 based on the movable connection point with the base 1, the swing piece 5 swings to drive the movable contact 51 to swing and contact one of the static contacts 2 to complete circuit closing or breaking.

[0037] When the sliding block 6 is in action, the other end of the sliding block 6 forms a pushing force on the flap 2 71, and the flap 2 71 rotates based on the rotating connection point with the base 1 as the fulcrum.

[0038] The protection scope of the utility model is not limited to the above embodiments and their transformations. The routine modifications and replacements made by the skilled in the art based on the content of the embodiments all belong to the protection scope of the utility model.

Claims

1. A small-angle double-leaf plate transmission type key switch, comprising a base (1), a static contact (2) and a conducting plate (3) mounted on the base (1), and a key (4) movably mounted on the base (1); characterized in that It also includes a swing piece (5) movably mounted on the base (1), a movable contact piece (51) movably mounted on the swing piece (5) and having one end in contact with the conducting piece (3), a sliding block (6) movably mounted in the base (1) and movably connected with the swing piece (5), and a double cantilever structure rotatably mounted on the base (1) and having one end extending into the base (1) to be in contact with the sliding block (6) and drive the sliding block (6) to drive the movable contact piece (51) to act to make the circuit close and break, wherein the double cantilever structure comprises a cantilever one (7) and a cantilever two (71) rotatably mounted on both sides of the base (1) and in contact with both ends of the sliding block (6).

2. A small angle double rocker plate transmission type key switch according to claim 1, characterized in that: The base (1) is provided with an axle hole (14), the cantilever one (7) and the cantilever two (71) are provided with the axle hole (14) matched and connected to rotatably mount the cantilever one (7) and the cantilever two (71) on the base (1), and the axle (73) is the rotating fulcrum.

3. A small angle double rocker plate transmission type key switch according to claim 1, characterized in that: It also includes a spring (72) mounted in the swing piece (5) and having one end connected with the movable contact piece (51) to make the movable contact piece (51) always in contact with the conducting piece (3).

4. A small angle double rocker plate transmission type key switch according to claim 1, characterized in that: It also includes a swing block (52) arranged in the swing piece (5) to limit the position of the spring (72).

5. A small angle double rocker switch according to claim 3, wherein: It also includes a positioning block (11) arranged on the base (1), wherein the positioning block (11) is provided with a limiting groove (12) to limit the swing angle position of the movable contact piece (51).

6. A small angle double rocker switch according to claim 1, characterized in that: It also includes a base pressing plate (13) mounted on the base (1).

7. A small angle double rocker switch according to claim 1, wherein: The key (4) is in contact with the cantilever one (7) and the cantilever two (71) at both ends.

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