Key switch with two-key key or three-key key

Abstract

The utility model relates to the technical field of switches, in particular to a key switch with a two-key key or a three-key key. The key switch with the two-key key comprises the two-key key, a support and a middle frame, the two-key key is attached to the support according to a first gap, the position, corresponding to the two-key key, of the support is provided with a first shaft hole buckle and a first plane buckle, the first shaft hole buckle and the first plane buckle are arranged on the two sides of a support connecting part respectively, the first shaft hole buckle is matched with a shaft hole of the middle frame, and the second shaft hole buckle is matched with a shaft hole of the middle frame. The first plane buckle is connected with the middle frame in a buckled mode so as to limit displacement of the first side portion of the support in three directions, and the first plane buckle is connected with the middle frame in a buckled mode so as to limit displacement of the second side portion of the support in one direction. The utility model also provides a key switch with the three-key key. According to the utility model, the displacement of the first side part in three directions is limited, and only the displacement of the second side part in one direction is limited, so that the secondary deformation of the bracket when the bracket is buckled with the middle frame is avoided, and the gap between the keys is ensured to meet the requirement.

Description

Technical Field

[0001] The utility model relates to the technical field of switches, in particular to a key switch with two keys or three keys. Background Art

[0002] The current key switch generally includes a key panel, a bracket and a middle frame. In order to improve production efficiency, the bracket is designed as an integrated structure, and the keys of the key panel are fitted with one end of the bracket according to the set gap, and then the other end of the bracket is buckled with the middle frame.

[0003] The keys are positioned by the jig and fitted with the bracket. This process can make the gap between the keys meet the standard. However, due to the small number of connecting glue positions of the bracket, the bracket produces concentricity displacement of the shaft hole after demolding (that is, the bracket has the first deformation), and then the bracket is deformed again after buckling with the middle frame (the bracket is deformed for the second time). The second deformation of the bracket causes the gap between the keys that have been positioned to change. As a result, the gap of the finished product does not meet the appearance standard, and even interference between the keys occurs.

[0004] Therefore, there is an urgent need for a key switch with two keys or three keys to further solve the problem that the key gap does not meet the standard or even the interference phenomenon between the keys caused by the secondary deformation of the bracket. Utility Model Content

[0005] In view of this, the technical problem to be solved by the utility model is to provide a key switch with two keys or three keys to solve the problem that the key gap does not meet the standard or even interference occurs between keys due to the secondary deformation of the bracket.

[0006] The technical solution adopted by the utility model to solve the above technical problems is as follows:

[0007] According to one aspect of the utility model, a push button switch with a two-button is provided, characterized in that the push button switch includes a two-button, a bracket and a middle frame, the two-button is fitted with a first end surface of the bracket according to a set first gap, and a first axis hole buckle and a first plane buckle are respectively provided on the second end surface of the bracket corresponding to the position of the two-button, the first axis hole buckle and the first plane buckle are respectively arranged on both sides of the bracket connecting part, the first axis hole buckle cooperates with the axis hole of the middle frame to limit the displacement of a first side portion of the bracket located at the connecting part toward the first axis hole buckle in a first direction, a second direction and a third direction, the first plane buckle is buckled and connected with the middle frame to limit the displacement of a second side portion of the bracket located at the connecting part toward the first plane buckle in the first direction, the first direction, the second direction and the third direction are perpendicular to each other, and the first direction is perpendicular to the bracket.

[0008] Preferably, a rotating shaft is provided at a position of the middle frame shaft hole corresponding to the first shaft hole buckle, and the first shaft hole buckle is connected with the rotating shaft to limit the displacement of the first side portion in the first direction and the second direction; the first shaft hole buckle is provided with a rib position to limit the displacement of the first side portion in the third direction, and the middle frame shaft hole is provided with a groove matching the rib position.

[0009] Preferably, the first plane buckle is provided with a plane buckle position for limiting the displacement of the second side portion in the positive direction in the first direction, and a bone support bracket is provided at the position of the middle frame corresponding to the plane buckle, and the bone support bracket is used to limit the displacement of the second side portion in the negative direction in the first direction.

[0010] Preferably, when the bracket is connected to the middle frame, the second gap between the first plane buckle and the middle frame in the second direction and the third direction is greater than the first deformation after the bracket is fitted with the two-key button, and the second gap between the first plane buckle and the middle frame in the second direction and the third direction is greater than the second deformation after the bracket is connected to the two-key button and the middle frame.

[0011] Preferably, the connecting portion is located at the end of the first side portion and the second side portion on the same side, and the first side portion and the second side portion are fixedly connected via the connecting portion so that a third gap is formed between the first side portion and the second side portion.

[0012] According to another aspect of the utility model, a key switch with a three-key button is provided. The key switch includes a three-key button, a bracket and a middle frame. The three-key button is fitted with a first end surface of the bracket according to a set first gap. A first shaft hole buckle, a first plane buckle and a second plane buckle are respectively provided on the second end surface of the bracket corresponding to the position of the three-key button. The first shaft hole buckle is located in the middle of the second end surface, the first plane buckle and the second plane buckle are respectively arranged on both sides of the first shaft hole buckle, and the first shaft hole buckle is located between the connecting parts. The first shaft hole buckle cooperates with the shaft hole of the middle frame to limit the displacement of the first side portion of the bracket located at the connecting part toward the first shaft hole buckle in the first direction, the second direction and the third direction. The first plane buckle is buckled and connected to the middle frame to limit the displacement of the second side portion of the bracket located at the connecting part toward the first plane buckle in the first direction. The second plane buckle is buckled and connected to the middle frame to limit the displacement of the third side portion of the bracket located at the connecting part toward the second plane buckle in the first direction. The first direction, the second direction and the third direction are perpendicular to each other, and the first direction is perpendicular to the bracket.

[0013] Preferably, a rotating shaft is provided at a position of the middle frame shaft hole corresponding to the first shaft hole buckle, and the first shaft hole buckle is connected with the rotating shaft to limit the displacement of the first side portion in the first direction and the second direction; the first shaft hole buckle is provided with a rib position to limit the displacement of the first side portion in the third direction, and the middle frame shaft hole is provided with a groove matching the rib position.

[0014] Preferably, the first plane buckle and the second plane buckle are respectively provided with plane buckle positions for limiting the displacement of the second side portion and the third side portion in the positive direction in the first direction, and the middle frame is provided with a bone support bracket at the position corresponding to the first plane buckle and the second plane buckle, and the bone support bracket is used to limit the displacement of the second side portion and the third side portion in the negative direction in the first direction.

[0015] Preferably, when the bracket is connected to the middle frame, the second gaps between the first plane buckle and the second plane buckle and the middle frame in the second direction and the third direction are respectively greater than the first deformation amount after the bracket is fitted with the three-button, and the second gaps between the first plane buckle and the second plane buckle and the middle frame in the second direction and the third direction are respectively greater than the second deformation amount after the bracket is connected to the three-button and the middle frame.

[0016] Preferably, the connecting portion is located at the end of the same side of the first side portion, the second side portion and the third side portion, and the first side portion and the second side portion and the second side portion and the third side portion are fixedly connected in sequence by the connecting portion, and a third gap is formed between the first side portion and the second side portion and between the second side portion and the third side portion.

[0017] Compared with the prior art, the push button switch with two buttons or three buttons provided by the utility model is provided with a first axis hole buckle on one side of the bracket connecting part, and the first axis hole buckle cooperates with the middle frame axis hole to limit the displacement of the first side portion of the bracket located at the connection part toward the first axis hole buckle in the first direction, the second direction and the third direction; at the same time, a first plane buckle or a first plane buckle and a second plane buckle are provided on one side or both sides of the first axis hole buckle to limit the displacement of the second side portion of the bracket corresponding to the first plane buckle or the second side portion and the third side portion of the first plane buckle and the second plane buckle in the first direction, the first direction, the second direction and the third direction are perpendicular to each other, and the first direction is perpendicular to the bracket, so that the second side portion or the second side portion and the third side portion can move freely in the second direction and the third direction, and when the bracket is buckled with the middle frame, the bracket will not undergo secondary deformation, thereby ensuring that the gap between the buttons does not change after the bracket is buckled with the middle frame, and no interference occurs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The present invention is a schematic structural diagram of a bracket in a key switch with three keys provided by the present invention.

[0019] Figure 2 This is a schematic diagram of the enlarged structure of the bracket A in the key switch with three keys provided by the utility model.

[0020] Figure 3 The utility model is a schematic structural diagram of a middle frame of a key switch with three keys.

[0021] Figure 4The utility model is a schematic diagram of the exploded structure of a key switch with three keys. DETAILED DESCRIPTION

[0022] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and more understandable, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0023] like Figures 1 to 4 As shown, Figure 1 The present invention is a schematic structural diagram of a bracket in a key switch with three keys provided by the present invention. Figure 2 This is a schematic diagram of the enlarged structure of the bracket A in the key switch with three keys provided by the utility model. Figure 3 The utility model is a schematic structural diagram of a middle frame of a key switch with three keys. Figure 4 The utility model is a schematic diagram of the exploded structure of a key switch with three keys.

[0024] In this embodiment, the key switch with a three-button button includes a three-button button 70, a bracket 10 and a middle frame 60. The three-button button 70 is fitted with the first end surface of the bracket 10 according to the set first gap 701. The second end surface of the bracket corresponding to the position of the three-button button 70 is respectively provided with a first shaft hole buckle 40, a first plane buckle 31 and a second plane buckle 32. The first shaft hole buckle 40 is located in the middle of the second end surface, and the first plane buckle 31 and the second plane buckle 32 are respectively arranged on both sides of the first shaft hole buckle 40, and the first shaft hole buckle 40 is located between the connecting portion 20 of the bracket 10. The first shaft hole buckle 40 and the shaft hole of the middle frame 60 are respectively provided. The bracket 10 is matched to limit the displacement of the first side portion 12 of the connecting portion 20 toward the first axis hole buckle 40 in the first direction, the second direction and the third direction. The first plane buckle 31 is buckled and connected with the middle frame 60 to limit the displacement of the second side portion 11 of the bracket 10 located at the connecting portion 20 toward the first plane buckle 31 in the first direction. The second plane buckle 32 is buckled and connected with the middle frame 60 to limit the displacement of the third side portion 13 of the bracket 10 located at the connecting portion 20 toward the second plane buckle 32 in the first direction. The first direction, the second direction and the third direction are perpendicular to each other, and the first direction is perpendicular to the bracket.

[0025] It can be understood that, taking the two perpendicular XYZ axes as an example, if the direction of the Z axis is perpendicular to the direction of the bracket 10, the directions of the X axis and the Y axis are perpendicular or parallel to the side edge of the bracket 10. In this embodiment, the first side portion 12 provided with the first shaft hole buckle 40 is restricted from displacement in the first direction, the second direction and the third direction, which is equivalent to the first side portion 12 being in a completely fixed state after being buckled with the middle frame. The displacement of the second side portion 11 is limited only in the first direction, which means that the second side portion 11 is in a displaceable state in the second direction and the third direction. Among them, the first direction corresponds to the direction perpendicular to the Z axis of the bracket 10. The second direction and the third direction can be exchanged according to the different settings of the specific first shaft hole buckle 40, the first plane buckle 31 and the second plane buckle 32 for the structure of limiting the direction. For example, the first plane buckle 31 and the second plane buckle 32 can limit the second direction or the third direction (i.e., the direction of the X axis or the direction of the Y axis) according to the specific structural settings.

[0026] It is understandable that in this embodiment, the three-button button 70 is composed of three independent buttons. The three buttons are positioned by a jig and fit with the bracket 10, and each button is independently connected to the bracket 10. In some embodiments, the three-button button 70 can also be set as an integrated structure corresponding to the structure of the bracket 10, and a connecting part is set at the same end of the three button parts to connect them without generating linkage.

[0027] For ease of understanding, I will first introduce the specific structures of the three-button button 70, the bracket 10 and the middle frame 60, and then describe in detail how the various components are connected together.

[0028] In this embodiment, the bracket 10 is a plate-shaped integrally formed structure. The bracket 10 is connected together by the ends of the first side portion 12, the second side portion 11 and the third side portion 13 on the same side through the connecting portion 20. The parts between the first side portion 12, the second side portion 11 and the third side portion 13 outside the connecting portion 20 have a third gap 50. In other words, the first side portion 11 and the third side portion 13 can be displaced relative to the second side portion 12 under the action of external force, thereby enlarging or reducing the distance of the third gap 50. The first shaft hole buckle 40 is located on the side of the end of the second side portion 12 corresponding to the connecting portion 20, and the first shaft hole buckle 40 is symmetrically arranged with two and a rib position 401 is arranged thereon. The first plane buckle 31 is arranged on the side of the end of the first side portion 11 corresponding to the connecting portion 20, and the second plane buckle 32 is arranged on the side of the end of the third side portion 13 corresponding to the connecting portion 20. The first shaft hole buckle 40 is arranged between the two connecting parts 20, the first plane buckle 31 and the first shaft hole buckle 40 are arranged on both sides of the connecting part 20, and the second plane buckle 32 and the first shaft hole buckle 40 are arranged on both sides of the connecting part 20. The first plane buckle 31 and the second plane buckle 32 are also two plane buckle structures arranged symmetrically.

[0029] A bone support bracket 61 is provided on one side of the end of the middle frame 60 corresponding to the first plane buckle 31 , the first shaft hole buckle 40 and the second plane buckle 32 .

[0030] The original three-button button 70, bracket 10 and middle frame 60 are assembled through the following steps:

[0031] 1. After the three-button key 70 is positioned by the jig, it fits with the first end surface of the bracket 10 with the set first gap 701. (This process can make the gap between the keys meet the standard, but because the bracket 10 has less connecting glue, the bracket 10 will produce the concentricity of the shaft hole after demolding, that is, the bracket 10 will be deformed for the first time, with one end having a larger size and the other end having a smaller size)

[0032] 2. The second end surface of the bracket 10 is buckled with the middle frame 60 (since the axial holes of the bracket 10 and the middle frame 60 are tightly matched, the bracket 10 will undergo secondary deformation after the bracket 10 and the middle frame 60 are buckled)

[0033] During the second deformation of the bracket 10 , the adjusted first gap 701 will change, which may cause the key gap to fail to meet the standard and even cause interference between the keys.

[0034] The improved structure of the utility model lies in the connection structure between the bracket 10 and the middle frame 60. A rotating shaft is provided at the position of the middle frame shaft hole corresponding to the first shaft hole buckle 40, and the first shaft hole buckle 40 is connected with the rotating shaft to limit the displacement of the first side portion 12 in the first direction and the second direction; the first shaft hole buckle 40 is provided with a rib position 701 to limit the displacement of the first side portion 12 in the third direction, and the middle frame shaft hole is provided with a groove matched with the rib position 701. The first side portion 12 is matched with the shaft hole of the rotating shaft on the middle frame 60 through the first shaft hole buckle 40 and the rib position 701 on the first shaft hole buckle 40 to limit the displacement of the first side portion 12 in the above three directions, but the first plane buckle 31 and the second plane buckle 32 located on the second side portion 11 and the third side portion 13 do not limit the displacement of the second side portion 11 and the third side portion 13 in the second direction and the third direction. Such a setting can prevent the bracket 10 from undergoing a second deformation during the buckling process with the middle frame, thereby avoiding the phenomenon that the key gap does not meet the standard and even interference between keys.

[0035] In this embodiment, the first shaft hole buckle 40 is connected with the shaft hole of the rotating shaft to limit the displacement of the first side portion 12 in the first direction and the second direction; the rib position 401 is used to limit the displacement of the first side portion 12 in the third direction, and the first plane buckle 31 and the second plane buckle 32 are respectively provided with plane buckle positions to limit the displacement of the second side portion 11 and the third side portion 13 in the positive direction in the first direction. The middle frame 60 is provided with a bone support bracket 62 at the position corresponding to the first plane buckle 31 and the second plane buckle 32, and the bone support bracket 61 is used to limit the displacement of the second side portion 11 and the third side portion 13 in the negative direction in the first direction.

[0036] In this embodiment, when the bracket 10 is buckled with the middle frame 60, there are gaps between the first plane buckle 31 and the second plane buckle 32 and the middle frame 60 in the second direction and the third direction. The gap is set as the second gap, and the second gap needs to be larger than the first deformation of the bracket 10 after the bracket 10 and the three-button 70 are positioned and fitted by the jig. At the same time, the second gap also needs to be larger than the second deformation of the bracket 10 after the bracket 10 and the middle frame 60 are buckled. In other words, during the buckling process of the bracket 10 and the middle frame 60, the bracket 10 and the middle frame 60 cannot be stuck due to the deformation of the bracket 10.

[0037] The connection part 20 of the bracket 10 is located at the end of the same side of the first side part 12, the second side part 11 and the third side part 13. The first side part 12 and the second side part 11 and the second side part 11 and the third side part 13 are fixedly connected in sequence through the bracket connection part 20, and a third gap is formed between the first side part 12 and the second side part 11 and between the second side part 11 and the third side part 13. Such an arrangement can realize that the second side part 11 and the third side part 13 described above can be displaced in the second direction and the third direction, thereby changing the size of the third gap, and the bracket 10 will also become a phenomenon in which one end has a larger size and the other end has a smaller size.

[0038] The utility model also provides a key switch with two buttons, the key switch includes a two-button button, a bracket and a middle frame, the two-button button is fitted with the first end face of the bracket according to a set first gap, the second end face of the bracket is provided with a first axis hole buckle and a first plane buckle corresponding to the position of the two-button button, the first axis hole buckle and the first plane buckle are respectively arranged on both sides of the bracket connecting part, the first axis hole buckle cooperates with the axis hole of the middle frame to limit the displacement of the first side part of the bracket located at the connecting part toward the first axis hole buckle in the first direction, the second direction and the third direction, the first plane buckle is buckled and connected with the middle frame to limit the displacement of the second side part of the bracket located at the connecting part toward the first plane buckle in the first direction, the first direction, the second direction and the third direction are perpendicular to each other, and the first direction is perpendicular to the bracket.

[0039] Compared with the three-button key switch solution, this solution lacks a second flat buckle and the connection relationship associated with it. It can also achieve that when the bracket is buckled with the middle frame, the bracket does not undergo a second deformation, thereby avoiding the key gap not meeting the standard and even the phenomenon of interference between keys. The detailed structural design of this solution corresponds to the three-button key switch solution one by one, except that the third side portion 13 and its connection relationship are missing.

[0040] The preferred embodiments of the present invention are described above with reference to the accompanying drawings, but the scope of the present invention is not limited thereby. A person skilled in the art may implement the present invention in a variety of variations without departing from the scope and essence of the present invention, such as using a feature of one embodiment to obtain another embodiment. Any modification, equivalent substitution and improvement made within the technical concept of the present invention shall be within the scope of the present invention.

Claims

1. A push button switch with two buttons, characterized in that: The key switch includes a two-button button, a bracket and a middle frame, the two-button button is fitted with the first end surface of the bracket according to a set first gap, the second end surface of the bracket is respectively provided with a first shaft hole buckle and a first plane buckle corresponding to the position of the two-button button, the first shaft hole buckle and the first plane buckle are respectively arranged on both sides of the bracket connecting part, the first shaft hole buckle cooperates with the shaft hole of the middle frame to limit the displacement of the first side portion of the bracket located at the connecting part toward the first shaft hole buckle in the first direction, the second direction and the third direction, the first plane buckle is buckled and connected with the middle frame to limit the displacement of the second side portion of the bracket located at the connecting part toward the first plane buckle in the first direction, the first direction, the second direction and the third direction are perpendicular to each other, and the first direction is perpendicular to the bracket.

2. The key switch with two buttons according to claim 1, characterized in that: A rotating shaft is provided at a position of the middle frame shaft hole corresponding to the first shaft hole buckle, and the first shaft hole buckle is matched and connected with the rotating shaft to limit the displacement of the first side portion in the first direction and the second direction; the first shaft hole buckle is provided with a rib position to limit the displacement of the first side portion in the third direction, and the middle frame shaft hole is provided with a groove matching the rib position.

3. The key switch with two keys according to claim 1, characterized in that: The first plane buckle is provided with a plane buckle position for limiting the displacement of the second side portion in the positive direction in the first direction, and the middle frame is provided with a bone support bracket at the position corresponding to the first plane buckle, and the bone support bracket is used to limit the displacement of the second side portion in the negative direction in the first direction.

4. The key switch with two keys according to claim 1, characterized in that: When the bracket is connected to the middle frame, the second gap between the first plane buckle and the middle frame in the second direction and the third direction is greater than the first deformation amount after the bracket is fitted with the two-key button, and the second gap between the first plane buckle and the middle frame in the second direction and the third direction is greater than the second deformation amount after the bracket is connected to the two-key button and the middle frame.

5. The key switch with two keys according to claim 1, characterized in that: The connecting portion is located at an end portion of the first side portion and the second side portion on the same side, and the first side portion and the second side portion are fixedly connected through the connecting portion so that a third gap is formed between the first side portion and the second side portion.

6. A key switch with three keys, characterized in that: The key switch includes a three-key button, a bracket and a middle frame, the three-key button is fitted with a first end surface of the bracket according to a set first gap, the second end surface of the bracket is respectively provided with a first shaft hole buckle, a first plane buckle and a second plane buckle at a position corresponding to the three-key button, the first shaft hole buckle is located in the middle of the second end surface, the first plane buckle and the second plane buckle are respectively arranged on both sides of the first shaft hole buckle, and the first shaft hole buckle is located between the connecting parts, the first shaft hole buckle cooperates with the shaft hole of the middle frame to limit the displacement of the first side portion of the bracket located at the connecting part toward the first shaft hole buckle in the first direction, the second direction and the third direction, the first plane buckle is buckled and connected to the middle frame to limit the displacement of the second side portion of the bracket located at the connecting part toward the first plane buckle in the first direction, the second plane buckle is buckled and connected to the middle frame to limit the displacement of the third side portion of the bracket located at the connecting part toward the second plane buckle in the first direction, the first direction, the second direction and the third direction are perpendicular to each other, and the first direction is perpendicular to the bracket.

7. The key switch with three keys according to claim 6, characterized in that: A rotating shaft is provided at a position of the middle frame shaft hole corresponding to the first shaft hole buckle, and the first shaft hole buckle is matched and connected with the rotating shaft to limit the displacement of the first side portion in the first direction and the second direction; the first shaft hole buckle is provided with a rib position to limit the displacement of the first side portion in the third direction, and the middle frame shaft hole is provided with a groove matching the rib position.

8. The key switch with three keys according to claim 6, characterized in that: The first plane buckle and the second plane buckle are respectively provided with plane buckle positions for limiting the displacement of the second side portion and the third side portion in the positive direction in the first direction, and the middle frame is provided with a bone support bracket at the position corresponding to the first plane buckle and the second plane buckle, and the bone support bracket is used to limit the displacement of the second side portion and the third side portion in the negative direction in the first direction.

9. The key switch with three keys according to claim 6, characterized in that: When the bracket is connected to the middle frame, the second gaps between the first plane buckle and the second plane buckle and the middle frame in the second direction and the third direction are respectively greater than the first deformation amount after the bracket is fitted with the three-button, and the second gaps between the first plane buckle and the second plane buckle and the middle frame in the second direction and the third direction are respectively greater than the second deformation amount after the bracket is connected to the three-button and the middle frame.

10. The key switch with three keys according to claim 9, characterized in that: The connecting portion is located at the end of the same side of the first side portion, the second side portion and the third side portion, and the first side portion and the second side portion and the third side portion are fixedly connected in sequence through the connecting portion, and a third gap is formed between the first side portion and the second side portion and between the second side portion and the third side portion.

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