Key device and ultrasonic equipment

Abstract

The utility model relates to the technical field of medical equipment, and discloses a key device and ultrasonic equipment. The accommodating cavity is arranged in the shell, and an opening communicated with the accommodating cavity is formed in the shell; the pressure-bearing unit comprises a pressure-bearing main body and at least one pressure-bearing sub-body, the pressure-bearing main body is limited in the containing cavity, part of the pressure-bearing main body extends into the open hole or penetrates out of the open hole, and the at least one pressure-bearing sub-body is arranged in the containing cavity; the trigger unit is arranged in the containing cavity and comprises a switch assembly and a protection piece, the switch assembly is arranged in the stroke range of pressure-bearing movement of the pressure-bearing body, and the protection piece is arranged between the switch assembly and the inner wall of the containing cavity. The pressure-bearing split body can provide pressure-bearing resistance and reset acting force for the pressure-bearing main body, the protection piece can provide buffering acting force for the switch assembly which bears force applied by the pressure-bearing main body, the pressure-bearing main body can bear at least double resistance and resilience force in the pressing movement process, and reset is fast.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a key device and ultrasonic equipment. Background Art

[0002] Commonly used medical electrical equipment, such as ultrasound equipment, mostly includes structures such as a screen and a host, and the host usually requires buttons to realize the functions of operating the equipment.

[0003] At present, most common buttons are adjusted in elasticity and feel through a single structure such as internal silicone parts, spring sheets and spring parts of the micro switch itself, and have low resilience and poor feel. Utility Model Content

[0004] In view of this, the utility model provides a key device and an ultrasonic device to solve the problem of low key resilience and poor hand feel.

[0005] In the first aspect, the utility model provides a button device, comprising: a shell; a accommodating cavity, arranged in the shell, and the shell is provided with an opening connected to the accommodating cavity; a pressure-bearing unit, comprising a pressure-bearing body and at least one pressure-bearing split body, the pressure-bearing body is limited to the accommodating cavity, and a part of the pressure-bearing body extends into the opening or passes through the opening, the at least one pressure-bearing split body is arranged in the accommodating cavity, and is suitable for providing pressure resistance and reset force to the pressure-bearing body; a trigger unit, arranged in the accommodating cavity, comprising a switch assembly and a protective member, the switch assembly is arranged within the travel range of the pressure-bearing movement of the pressure-bearing body, and the protective member is arranged between the switch assembly and the inner wall of the accommodating cavity, and is suitable for buffering the force applied to the switch assembly.

[0006] Beneficial effects:

[0007] A pressure-bearing split body, a protective member and a switch assembly are provided, wherein the pressure-bearing split body can provide pressure resistance and restoring force to the pressure-bearing main body, and the protective member can provide a buffering force to the switch assembly that receives the force applied by the pressure-bearing main body. As a result, the pressure-bearing main body can be subjected to at least double resistance and rebound force during the movement of being pressed, and can be reset faster.

[0008] In an optional embodiment, the pressure-bearing body includes: a button part, at least a part of which is arranged on the inner side of the opening, and the button part is spaced from the inner wall of the opening; a pressure-bearing plate, which is arranged in the accommodating cavity and is connected to the button part, and whose projection toward the opening completely covers the opening, and at least a part of the projection falls on the inner wall of the accommodating cavity, and the pressure-bearing split body is provided at the position of the pressure plate corresponding to the at least part of the projection; and a contact part, which is arranged on the side of the pressure plate facing the trigger unit and abuts against the switch assembly.

[0009] In an optional embodiment, the inner edge of the opening at one end away from the accommodating cavity is chamfered, and the button portion is flush with the inner edge of the chamfer.

[0010] In an optional embodiment, the pressure-bearing split body is made of elastic material and is in an arc shape, and the pressure-bearing split body protrudes toward the inner wall of the accommodating cavity along the direction of the external force borne by the button part.

[0011] In an optional embodiment, the switch assembly includes: a circuit board; a trigger switch, including a switch body and a trigger part, the switch body has an elastic member built in and is movable with the trigger part, the switch body is electrically connected to the circuit board, and the elastic member abuts against the pressure-bearing body.

[0012] In an optional embodiment, the protective member is made of elastic material and is in the shape of a sleeve, clamped on the side edge of the circuit board; a partition is built into the accommodating cavity, the pressure-bearing unit is clamped between the partition and the inner wall of the accommodating cavity on the side where the opening is located, and the protective member is limitedly arranged between the partition and the inner wall of the accommodating cavity away from the opening.

[0013] In an optional embodiment, it also includes: at least one bending portion, which is arranged on the inner wall of the accommodating cavity and between the partition and the opening, and the bending portion corresponds to the pressure-bearing sub-body and is suitable for receiving and limiting the pressure-bearing sub-body.

[0014] In an optional embodiment, the outer shell includes: a first partial shell, including a top plate and a side plate, the top plate is provided with the opening, and the side plate and / or the top plate are protrudingly provided with a cavity plate; a second partial shell, opposite to the side plate and detachably connected to the first partial shell, the second partial shell abuts against the cavity plate and forms the accommodating cavity.

[0015] In an optional embodiment, an operation hole is provided on the inner wall of the accommodating cavity away from the opening.

[0016] In a second aspect, the utility model further provides an ultrasonic device, comprising the above-mentioned button device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1A schematic diagram of the three-dimensional structure of a key device according to an embodiment of the utility model;

[0019] Figure 2 for Figure 1 A schematic diagram of the three-dimensional structure of the first sub-shell of the key device and its contents shown;

[0020] Figure 3 for Figure 1 A schematic diagram of the three-dimensional structure of the first subshell of the middle button device;

[0021] Figure 4 for Figure 1 A schematic diagram of the three-dimensional structure of the second sub-shell of the middle button device;

[0022] Figure 5 for Figure 1 A schematic diagram of the three-dimensional structure of the pressure-bearing main body and the pressure-bearing sub-body of the middle button device;

[0023] Figure 6 for Figure 5 A schematic diagram of the three-dimensional structure of the pressure-bearing main body and the pressure-bearing sub-body of the middle button device from another angle;

[0024] Figure 7 for Figure 1 A schematic diagram of the three-dimensional structure of the switch assembly and the protective member of the middle button device;

[0025] Figure 8 for Figure 1 A schematic diagram of the internal structure of the middle button device;

[0026] Description of reference numerals:

[0027] 1. Shell; 101. First sub-shell; 102. Second sub-shell; 103. Accommodating cavity; 104. Opening; 105. Chamfer; 2. Pressure-bearing body; 201. Button part; 202. Pressure-bearing plate; 203. Contact part; 3. Pressure-bearing sub-body; 4. Switch assembly; 401. Circuit board; 402. Trigger switch; 5. Protective component; 6. Partition; 7. Bending part; 8. Operating hole. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0029] Combine the following Figures 1 to 8 , describing an embodiment of the utility model.

[0030] In a first aspect, the utility model provides a key device, comprising: a housing 1, a receiving cavity 103, a pressure-bearing unit and a trigger unit.

[0031] The housing 1 is used as the installation base of the pressure-bearing unit and the trigger unit, and a receiving cavity 103 is provided inside. The structural shape of the housing 1 can correspond to the installation environment of the key device, such as: when the key device is installed on a keyboard, the housing 1 can be a keyboard frame. In some embodiments, the housing 1 is detachably provided to install the pressure-bearing unit and the trigger unit.

[0032] In this embodiment, an opening 104 connected to the accommodating cavity 103 is provided on the shell 1. The setting position of the opening 104 on the shell 1 is selected according to the actual needs of the user. In some embodiments, the opening 104 is set on the upper side of the shell 1 to facilitate the user's pressing operation from top to bottom.

[0033] The pressure-bearing unit comprises a pressure-bearing main body 2 and at least one pressure-bearing sub-body 3 .

[0034] The pressure-bearing body 2 is limited in the accommodating cavity 103, and part of the pressure-bearing body 2 extends into the opening 104. The user can press and apply force to the pressure-bearing body 2. This arrangement can reduce accidental touches. As a convertible implementation, part of the pressure-bearing body 2 can also extend to be flush with the opening 104 or extend to the outside of the opening 104.

[0035] In this embodiment, two pressure-bearing sub-bodies 3 are provided, and the two are symmetrical with respect to the opening 104, so that the pressure can be balanced. As a convertible implementation, one or more pressure-bearing sub-bodies 3 can also be provided. Each pressure-bearing sub-bodies 3 is arranged in the accommodating cavity 103, and is suitable for providing pressure resistance and restoring force to the pressure-bearing main body 2.

[0036] The trigger unit is disposed in the accommodating cavity 103 , and includes a switch assembly 4 and a protective member 5 .

[0037] The switch assembly 4 is disposed within the travel range of the pressure-bearing movement of the pressure-bearing body 2. Specifically, the pressure-bearing movement of the pressure-bearing body 2 refers to the movement of the pressure-bearing body 2 caused by the user or other external forces.

[0038] Preferably, the switch assembly 4 and the pressure-bearing body 2 are always in contact with each other within the travel range. This arrangement can ensure that the pressure-bearing body 2 is always subjected to the force from the pressure-bearing separation and protection member 5 during the pressure-bearing movement and reset rebound process, thereby ensuring the user's experience. As a convertible embodiment, the switch assembly 4 and the pressure-bearing body 2 can have a partial travel that is separated from each other within the pressure-bearing movement travel range of the pressure-bearing body 2.

[0039] The protective member 5 is disposed between the switch assembly 4 and the inner wall of the accommodating chamber 103 , and is suitable for buffering the force acting on the switch assembly 4 .

[0040] A pressure-bearing split body 3, a protective member 5 and a switch assembly 4 are provided, wherein the pressure-bearing split body 3 can provide pressure resistance and restoring force to the pressure-bearing main body 2, and the protective member 5 can provide a buffering force to the switch assembly 4 that receives the force applied by the pressure-bearing main body 2, so that the pressure-bearing main body 2 can be subjected to at least double resistance and rebound force during the movement of being pressed, and can be reset faster.

[0041] like Figure 5-Figure 6 As shown, the pressure-bearing body 2 includes a button portion 201 , a pressure-bearing plate 202 and a contact portion 203 .

[0042] Among them, the button part 201 is used to directly contact with the user or the external force-applying body and withstand pressure. The outer diameter of the button part 201 is slightly smaller than the inner diameter of the opening 104, so that the button part 201 is spaced from the inner wall of the opening 104, and part of the button part 201 is arranged on the inner side of the opening 104. In some embodiments, when not pressed, the entire button part 201 can be arranged on the inner side of the opening 104.

[0043] The pressure plate 202 is arranged in the accommodating cavity 103, and one side of the pressure plate 202 is connected to the button part 201. The projection of the pressure plate 202 toward the opening 104 can completely cover the opening 104, and at least part of the projection falls on the inner wall of the accommodating cavity 103. The pressure plate 202 arranged in this way can be stably connected to the button part 201, and can limit the button part 201 when it is reset by abutting against the inner wall of the accommodating cavity 103. At the same time, a pressure-bearing split body 3 is provided on the part of the pressure plate 202 whose projection falls on the inner wall of the accommodating cavity 103, and the pressure-bearing split body 3 is arranged on the side of the pressure plate 202 facing away from the button part 201.

[0044] Preferably, the button portion 201 is disposed at the center of one side of the pressure plate 202 , so as to facilitate the button portion 201 to disperse the force.

[0045] The contact portion 203 is arranged on the side of the pressure plate 202 facing the trigger unit, and abuts against the switch assembly 4. In this embodiment, the contact portion 203 is a protrusion component arranged on the pressure plate 202. Preferably, the protrusion component includes an annular protrusion and a cross protrusion arranged inside the annular protrusion. The protrusion component is correspondingly projected on the switch assembly 4, and the middle part of the cross protrusion abuts against the switch assembly 4. The protrusion component arranged in this way expands the setting area of ​​the contact portion 203 to avoid slipping out of the abutment with the switch assembly 4.

[0046] Preferably, the contact portion 203 and the button portion 201 are located at corresponding positions on both sides of the pressure plate 202, so that the user can concentrate force on the switch assembly 4 when pressing.

[0047] In some embodiments, the inner edge of the end of the opening 104 away from the accommodating cavity 103 is chamfered 105, specifically a rounded corner, to avoid scratching the user, and the button portion 201 is flush with the inner edge of the chamfer 105. This arrangement increases the contact area between the user and the button device when pressing, improves the pressing feel, and at the same time, ensures that the button portion 201 is lower than the top of the opening 104 to avoid accidental touch.

[0048] The pressure-bearing split body 3 is made of elastic material, specifically an elastic deformation structure that utilizes its own structural deformation and material deformation. The specific material can be hard elastic plastic, etc. The structure of the pressure-bearing split body 3 is curved, and the pressure-bearing split body 3 protrudes toward the inner wall of the accommodating cavity 103 along the direction of the external force applied by the button part 201, that is, the user's pressing direction. When the pressure-bearing main body 2 receives external force, the pressure-bearing split body 3 undergoes structural deformation and provides elastic force to the pressure-bearing main body 2. It can be understood that the pressure-bearing split body 3 can also be annular, etc.

[0049] like Figure 7 As shown, the switch assembly 4 includes: a circuit board 401 and a trigger switch 402 .

[0050] The circuit board 401 is electrically connected to the circuit boards 401 of other key devices, and may also be electrically connected to a host or other equipment outside the key device.

[0051] The trigger switch 402 can specifically be a touch switch or a micro switch, etc., including a switch body and a trigger part. The switch body has an elastic part built in, and the elastic part can be a spring or a metal spring, etc. The elastic part is movably connected to the trigger part and connected to the limit. The switch body is electrically connected to the circuit board 401, and the elastic part abuts against the pressure-bearing body 2.

[0052] The elastic member built into the trigger switch 402 can be combined with the pressure-bearing split body 3 and the protective member 5 to further increase the elastic force and rebound force of the pressure-bearing main body 2 during the pressing process.

[0053] In some embodiments, the protective member 5 is made of elastic material, specifically a flexible silicone member or a rubber member.

[0054] Preferably, the protective member 5 is in the shape of a jacket with an opening on one side, and is sleeved on the side edge of the circuit board 401. Further preferably, two protective members 5 are provided, which are respectively sleeved on the opposite sides of the circuit board 401. As a convertible embodiment, one or more protective members 5 can be provided. When a single protective member 5 is provided, the protective member 5 can be in the shape of a ring with an opening on the inside. When multiple protective members 5 are provided, some protective members 5 can be in the shape of a through groove to cooperate with other protective members 5 in the shape of a jacket.

[0055] The accommodating chamber 103 is provided with a partition 6, a pressure-bearing unit is sandwiched between the partition 6 and the inner wall of the accommodating chamber 103 on the side where the opening 104 is located, and a protective member 5 is provided between the partition 6 and the inner wall of the accommodating chamber 103 on the side away from the opening 104. In addition, a gap is provided in the middle of the partition 6 for the button portion 201 to pass through, and the partition 6 can also be provided as two separate plates with a gap sandwiched between the separate plates.

[0056] The protective member 5 and the partition 6 are provided, and the space between the partition 6 and the inner wall of the accommodating cavity 103 far from the opening 104 can accommodate and limit the protective member 5, so as to prevent the protective member 5 from being displaced due to force, thereby ensuring the buffering effect on the circuit board 401. At the same time, the partition 6 can also serve as a bearing structure of the pressure-bearing unit, or when the pressure-bearing unit already has a corresponding bearing structure, the partition 6 can serve as a further insurance device to prevent the pressure-bearing unit from slipping and failing due to force.

[0057] In some embodiments, the key device includes a bending portion 7, which is disposed on the inner side wall of the accommodating cavity 103, that is, a bending step of the inner side wall of the accommodating cavity 103 toward the inside of the accommodating cavity 103. Figure 8 As shown, along the vertical direction of the figure, the bending portion 7 is correspondingly arranged between the plane where the partition 6 is located and the cross section of the opening 104, the bending portion 7 corresponds to the pressure-bearing sub-body 3, and the bending portion 7 can correspond to the limited pressure-bearing sub-body 3. Preferably, the number of the bending portions 7 is two, which are opposite to each other on the inner wall of the accommodating cavity 103. This arrangement uses less material and can correspond to the pressure-bearing sub-body 3 one by one and support them respectively. It can be understood that the bending portion 7 can also be arranged in a single or multiple manner to achieve the bearing of the pressure-bearing sub-body 3.

[0058] like Figure 1-Figure 4 As shown, the housing 1 includes a first partial housing 101 and a second partial housing 102 .

[0059] The first sub-shell 101 includes a top plate and a side plate, the top plate is provided with an opening 104, and a cavity plate is protruding from the inner wall of the top plate. The cavity plate is one of the structures constituting the accommodating cavity 103. The cavity plate can also be protruding from the side plate, and the cavity plate can also be connected to both the side plate and the top plate; the second sub-shell 102 is opposite to the side plate, and is detachably connected to the top plate and the side plate, which can be specifically screwed or snap-fitted, etc. The inner wall of the second sub-shell 102 abuts against the cavity plate, and together forms the accommodating cavity 103. The detachably connected first sub-shell 101 and second sub-shell 102 facilitate the disassembly and assembly of the pressure-bearing unit and the trigger unit into the accommodating cavity 103. It can be understood that the first sub-shell 101 and the second sub-shell 102 can also be fixedly connected, the top plate can also be used as a part of the second sub-shell 102, or both the top plate and the side plate can also be used as a part of the second sub-shell 102.

[0060] Preferably, reinforcing ribs are provided on the inner walls of the first partial shell 101 and the second partial shell 102 and protrude toward the interior of the accommodating cavity 103 , so as to further increase the structural strength and load capacity of the accommodating cavity 103 .

[0061] In an optional embodiment, an operation hole 8 is provided on the inner wall of the accommodating cavity 103 far from the opening 104. Preferably, both ends of the operation hole 8 face the second sub-shell 102 and the side plate respectively, so that the user can draw out the trigger unit through the operation hole 8.

[0062] In a second aspect, the utility model further provides an ultrasonic device, comprising the above-mentioned button device.

[0063] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A key device, characterized in that: include: Housing (1); A receiving cavity (103) is arranged in the housing (1), and an opening (104) communicating with the receiving cavity (103) is provided on the housing (1); A pressure-bearing unit, comprising a pressure-bearing body (2) and at least one pressure-bearing sub-body (3), wherein the pressure-bearing body (2) is limited in the accommodating cavity (103), and a portion of the pressure-bearing body (2) extends into the opening (104) or passes through the opening (104), and the at least one pressure-bearing sub-body (3) is arranged in the accommodating cavity (103), and the pressure-bearing sub-body (3) is suitable for providing pressure resistance and restoring force to the pressure-bearing body (2); The trigger unit is arranged in the accommodating cavity (103), and comprises a switch assembly (4) and a protective member (5); the switch assembly (4) is arranged within the travel range of the pressure-bearing movement of the pressure-bearing body (2); the protective member (5) is arranged between the switch assembly (4) and the inner wall of the accommodating cavity (103), and is suitable for buffering the force applied to the switch assembly (4).

2. The key device according to claim 1, characterized in that: The pressure-bearing body (2) comprises: A button portion (201), at least a portion of the button portion (201) is arranged inside the opening (104), and the button portion (201) is spaced apart from an inner wall of the opening (104); A pressure-bearing plate (202) is arranged in the accommodating cavity (103), connected to the button portion (201), and its projection in the direction of the opening (104) completely covers the opening (104), and at least a portion of its projection falls on the inner wall of the accommodating cavity (103), and the pressure-bearing split body (3) is provided at a position of the pressure-bearing plate (202) corresponding to the at least a portion of its projection; The contact portion (203) is arranged on a side of the pressure-bearing plate (202) facing the trigger unit and abuts against the switch assembly (4).

3. The key device according to claim 2, characterized in that: A chamfer (105) is provided at the inner edge of one end of the opening (104) away from the accommodating cavity (103), and the button portion (201) is flush with the inner edge of the chamfer (105).

4. The key device according to claim 2, characterized in that: The pressure-bearing sub-body (3) is made of elastic material and is in an arc shape. The pressure-bearing sub-body (3) protrudes toward the inner wall of the accommodating cavity (103) along the direction of the external force applied by the button portion (201).

5. The key device according to any one of claims 1 to 4, characterized in that: The switch assembly (4) comprises: Circuit board (401); The trigger switch (402) comprises a switch body and a trigger part, wherein the switch body has an elastic member built therein and is movable and limited with the trigger part, the switch body is electrically connected to the circuit board (401), and the elastic member abuts against the pressure-bearing body (2).

6. The key device according to claim 5, characterized in that: The protective member (5) is made of elastic material and is in the shape of a jacket, and is clamped on the side edge of the circuit board (401); The accommodating chamber (103) is provided with a partition (6) therein, the pressure-bearing unit is sandwiched between the partition (6) and the inner wall of the accommodating chamber (103) on the side where the opening (104) is located, and the protective member (5) is provided in a limiting manner between the partition (6) and the inner wall of the accommodating chamber (103) on the side away from the opening (104).

7. The key device according to claim 6, characterized in that: Also includes: At least one bent portion (7) is arranged on the inner side wall of the accommodating cavity (103), and is arranged between the partition plate (6) and the opening (104), and corresponds to the pressure-bearing sub-body (3). The bent portion (7) is suitable for receiving and limiting the pressure-bearing sub-body (3).

8. The key device according to any one of claims 1-4, 6-7, characterized in that: The housing (1) comprises: A first subshell (101) comprises a top plate and a side plate, the top plate is provided with the opening (104), and the side plate and / or the top plate are protrudingly provided with a cavity plate; The second sub-shell (102) is opposite to the side plate and is detachably connected to the first sub-shell (101); the second sub-shell (102) abuts against the cavity plate and forms the accommodating cavity (103).

9. The key device according to any one of claims 1-4, 6-7, characterized in that: An operating hole (8) is provided on the inner wall of the accommodating cavity (103) at a side away from the opening (104).

10. An ultrasonic device, characterized in that: A key device comprising any one of claims 1 to 9.

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