Key structure and anesthesia machine

Abstract

The utility model is applicable to the technical field of key structures, and provides a key structure and an anaesthesia machine, the key structure comprises an equipment shell and a key, the equipment shell is provided with a mounting port, the mounting port comprises a first-section accommodating groove and a second-section accommodating groove, and the diameter of the first-section accommodating groove is larger than that of the second-section accommodating groove. The key comprises a key front end and a key column body, the key front end is embedded in the first containing groove section, at least part of the key column body is embedded in the second containing groove section and is in sliding connection with the second containing groove section, the installation opening is provided with a first limiting part, and the key is provided with a second limiting part. The first limiting part and the second limiting part are matched to limit the assembling direction of the key relative to the mounting port, so that the normal assembling direction of the key mounting is ensured, the structure is simple and reliable, and quick assembly and disassembly can be realized.

Description

Technical Field

[0001] The utility model belongs to the technical field of key structures, and in particular relates to a key structure and an anesthesia machine. Background Art

[0002] A key, also known as a push button, is a commonly used control electrical component, often used to connect or disconnect a circuit, thereby achieving the purpose of controlling the operation of a motor or other electrical equipment. A key is usually installed on an electronic device, and part of the key is exposed outside the housing of the electronic device for the user to press and operate.

[0003] The buttons of some existing electronic devices have specific requirements for the installation angle and position of the buttons during installation, which is convenient for users to operate or to accurately select the buttons to be pressed according to the direction and position of the buttons. Therefore, the installation direction and position of the buttons need to be precise during installation. For example, the auxiliary fast oxygen button of the existing anesthesia machine is easy to be installed in the wrong direction or in the wrong position, which affects the normal use of the equipment. Utility Model Content

[0004] The embodiment of the utility model provides a key structure and an anesthesia machine, aiming to solve the problem that the existing keys are easily installed in the wrong direction or in the wrong position.

[0005] An embodiment of the utility model is implemented as follows: a button structure includes a device housing and a button, the device housing has an installation port, the installation port includes a first section accommodating groove and a second section accommodating groove, the diameter of the first section accommodating groove is larger than the diameter of the second section accommodating groove, the button includes a key front end and a key column body, the key front end is embedded in the first section accommodating groove, the key column body is at least partially embedded in the second section accommodating groove and is slidably connected to the second section accommodating groove, the installation port is provided with a first limiting portion, the button is provided with a second limiting portion, the first limiting portion and the second limiting portion cooperate to limit the assembly direction of the button relative to the installation port.

[0006] Further, the first limiting portion is a limiting protrusion arranged on the second section accommodating groove, and the second limiting portion is a limiting groove arranged on the key column body for cooperating with the limiting protrusion.

[0007] Furthermore, the pressing plane at the front end of the key is flush with the device housing, and the first end of the pressing plane is larger than the second end of the pressing plane.

[0008] Furthermore, a concave hand-pressing position is provided in the middle of the pressing plane.

[0009] Furthermore, one end of the key column away from the front end of the key extends out of the second section receiving groove and forms an elastic limiting portion, which cooperates with the end of the second section receiving groove to limit the pressing stroke of the key relative to the installation opening.

[0010] Furthermore, the elastic limiting portion is an elastic double buckle arranged at an end of the key column away from the front end of the key.

[0011] Furthermore, a guiding inclined surface is arranged at one end of the elastic double buckle away from the key column.

[0012] Furthermore, an embedding groove cooperating with the switch is provided between the elastic double buckles.

[0013] Furthermore, the device housing is provided with a positioning groove, and a mounting opening is provided in the positioning groove.

[0014] In a second aspect, the present application also provides an anesthesia machine, including a PCB socket assembly and a button structure as described above, wherein the PCB socket assembly is connected to the device housing, and the PCB socket assembly has a switch connected to the button.

[0015] The beneficial effect of the present application lies in that the key structure of the present application includes a device housing and a key, the device housing has an installation port, the installation port includes a first section accommodating groove and a second section accommodating groove, the diameter of the first section accommodating groove is larger than the diameter of the second section accommodating groove, the key includes a key front end and a key column body, the key front end is embedded in the first section accommodating groove, the key column body is at least partially embedded in the second section accommodating groove and is slidably connected to the second section accommodating groove, the installation port is provided with a first limiting portion, and the key is provided with a second limiting portion, the first limiting portion and the second limiting portion cooperate to limit the assembly direction of the key relative to the installation port, thereby ensuring that the assembly direction of the key installation is normal, the structure is simple and reliable, and can be quickly assembled and disassembled. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the assembly structure of a key and a device housing of an embodiment of a key structure provided by the present application;

[0017] Figure 2 This is a structural schematic diagram of an assembly of a key and a PCB socket assembly in one embodiment of a key structure provided by the present application;

[0018] Figure 3 This is a schematic diagram of the structure of a key of another embodiment of the key structure provided by the present application;

[0019] Figure 4 This is a structural schematic diagram of an installation port at an angle of an embodiment of a key structure provided by the present application;

[0020] Figure 5 This is a structural schematic diagram of another angle of the installation port of an embodiment of the key structure provided by the present application;

[0021] Figure 6 It is a structural schematic diagram of the assembly of a key and a mounting port in one embodiment of a key structure provided by the present application.

[0022] Among them: 100, device housing; 110, installation port; 111, first section accommodating groove; 112, second section accommodating groove; 120, first limiting portion; 130, positioning groove; 200, button; 210, key front end; 211, finger pressing position; 220, key column; 221, elastic limiting portion; 222, guiding slope; 230, second limiting portion; 300, PCB socket assembly. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. Examples of embodiments are shown in the accompanying drawings, in which the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model. In addition, it should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model.

[0024] The disclosure below provides many different embodiments or examples for realizing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the utility model. In addition, the utility model can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, and does not indicate the relationship between the various embodiments and / or settings discussed in itself. In addition, the utility model provides various specific examples of processes and materials, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0025] The key structure device shell and key of the present application, the device shell has an installation port, the installation port includes a first section accommodating groove and a second section accommodating groove, the diameter of the first section accommodating groove is larger than the diameter of the second section accommodating groove, the key includes a key front end and a key column body, the key front end is embedded in the first section accommodating groove, the key column body is at least partially embedded in the second section accommodating groove and is slidably connected to the second section accommodating groove, the installation port is provided with a first limiting portion, the key is provided with a second limiting portion, the first limiting portion and the second limiting portion cooperate to limit the assembly direction of the key relative to the installation port, thereby ensuring that the assembly direction of the key installation is normal, the structure is simple and reliable, and can be quickly assembled and disassembled.

[0026] Embodiment 1

[0027] like Figures 1 to 6As shown, an embodiment of the present application provides a key structure, including a device housing 100 and a key 200, the device housing 100 has an installation port 110, the installation port 110 includes a first section receiving groove 111 and a second section receiving groove 112, the diameter of the first section receiving groove 111 is larger than the diameter of the second section receiving groove 112, the key 200 includes a key front end 210 and a key column body 220, the key front end 210 is embedded in the first section receiving groove 111, the key column body 220 is at least partially embedded in the second section receiving groove 112 and is slidably connected to the second section receiving groove 112, the installation port 110 is provided with a first limiting portion 120, the key 200 is provided with a second limiting portion 230, the first limiting portion 120 and the second limiting portion 230 cooperate to limit the assembly direction of the key 200 relative to the installation port 110.

[0028] During implementation, the button 200 structure provided in the present application is applied to an electronic device, and the electronic device may be an anesthesia machine or other electronic device having the button 200 , without limitation.

[0029] The device housing 100 refers to a housing of an electronic device. The device housing 100 may be a plastic housing or a housing made of other materials, without limitation.

[0030] The device housing 100 is provided with an installation opening 110, which is used to install the button 200, wherein the installation opening 110 has a first section accommodating groove 111 and a second section accommodating groove 112, the first section accommodating groove 111 is formed by extending from the device housing 100 toward the inside of the device housing 100, and the second end accommodating groove is further extended on the basis of the first section accommodating groove 111, and the diameter of the first section accommodating groove 111 is greater than the diameter of the second section accommodating groove 112.

[0031] In some embodiments, the diameter of the first section receiving groove 111 and the second section receiving groove 112 refers to the size of the first section receiving groove 111 and the second section receiving groove 112. For example, when the first section receiving groove 111 and the second section receiving groove 112 are circular grooves, the diameter of the first section receiving groove 111 and the diameter of the second section receiving groove 112 refer to the diameter of the circular groove; when the first section receiving groove 111 and the second section receiving groove 112 are square grooves, the diameter of the first section receiving groove 111 and the diameter of the second section receiving groove 112 refer to the side length of the square groove. Of course, the first section receiving groove 111 and the second section receiving groove 112 are not limited to the above-mentioned circular or square grooves. In other embodiments, the first section receiving groove 111 and the second section receiving groove 112 can also adopt slots of other shapes, such as triangles, polygons or irregular shapes, without limitation.

[0032] In some embodiments, the key front end 210 and the key column 220, the key front end 210 can be regarded as the front end of the key 200, which is used for the user's finger to touch and press, and the key column 220 is the main body of the key 200, which is used to contact the switch of the electronic device. The key front end 210 is embedded in the first section of the receiving groove 111, so that the key column 220 is at least partially embedded in the second section of the receiving groove 112 and is slidably connected with the second section of the receiving groove 112. When the user presses the key 200, the key column 220 triggers the switch in the electronic device under the force applied by the user, and the function of the key 200 is realized; when the force applied by the user is withdrawn, the switch is reset under the action of its own elastic force and pushes the key 200 back to its original position, ending the function of the key 200.

[0033] The mounting opening 110 is provided with a first limiting portion 120, and the button 200 is provided with a second limiting portion 230. When the button 200 is assembled to the mounting opening 110, the first limiting portion 120 and the second limiting portion 230 need to be matched to limit the assembly direction of the button 200 relative to the mounting opening 110, so as to ensure that the assembly direction of the button 200 is installed normally.

[0034] The key 200 structure of the present application comprises a device housing 100 and a key 200, wherein the device housing 100 has an installation opening 110, and the installation opening 110 comprises a first section receiving groove 111 and a second section receiving groove 112, wherein the diameter of the first section receiving groove 111 is greater than the diameter of the second section receiving groove 112, and the key 200 comprises a key front end 210 and a key column body 220, wherein the key front end 210 is embedded in the first section receiving groove 111, and the key column body 220 is at least partially embedded in the second section receiving groove 112 and is slidably connected to the second section receiving groove 112, and the installation opening 110 is provided with a first limiting portion 120, and the key 200 is provided with a second limiting portion 230, wherein the first limiting portion 120 and the second limiting portion 230 cooperate to limit the assembly direction of the key 200 relative to the installation opening 110, thereby ensuring that the assembly direction of the key 200 is installed normally, and the structure is simple and reliable, and can be quickly assembled and disassembled.

[0035] In some embodiments, the first limiting portion 120 is a limiting protrusion disposed on the second section receiving groove 112 , and the second limiting portion 230 is a limiting groove disposed on the key column body 220 for cooperating with the limiting protrusion.

[0036] When the key 200 is inserted into the mounting opening 110 for assembly, the direction of the key 200 needs to be accurately defined to align the limiting groove with the limiting protrusion so that the key column 220 can be inserted into the second section receiving groove 112, which can effectively prevent the key 200 from being installed in reverse or in the wrong position.

[0037] In some embodiments, the pressing plane of the key front end 210 is flush with the device housing 100 , and the first end of the pressing plane is larger than the second end of the pressing plane.

[0038] The pressing plane of the key front end 210 is the surface for the user's finger to contact and press. By designing the pressing plane of the key front end 210 to be flush with the outer surface of the device housing 100, the key 200 as a whole has an embedded structure, which can prevent accidental touching of the key 200 and reduce dust accumulation on the key 200.

[0039] In implementation, the pressing plane of the key front end 210 being flush with the device housing 100 means that the pressing plane is at the same height as the outer surface of the device housing 100 or slightly lower than the outer surface of the device housing 100, without limitation.

[0040] In some embodiments, the front end 210 of the key is in the shape of an elongated column, and the width of one end of the elongated column is larger than the width of the other end, that is, the width of the first end of the pressing plane is larger than the width of the second end of the pressing plane. Similarly, the first section of the accommodating groove 111 can also be designed as an elongated columnar groove, which is wide at one end and narrow at the other end, so as to cooperate with the shape of the front end 210 of the key to limit the assembly direction of the key 200. In other words, the structure of the above-mentioned front end 210 of the key and the first section of the accommodating groove 111 can be regarded as the design structure of the first limiting portion 120 and the second limiting portion 230, which can achieve the limitation of the assembly direction of the key 200.

[0041] In some embodiments, a concave hand-pressing position 211 is provided in the middle of the pressing plane. The hand-pressing position 211 is an inner groove or an inner concave arc surface provided in the middle of the pressing plane, so that the user can apply force only in the middle of the key 200 when pressing the key 200, thereby reducing the probability of function delay or failure caused by pressing the edge of the key 200.

[0042] In some embodiments, the device housing 100 is provided with a positioning groove 130, and the mounting opening 110 is provided in the positioning groove 130. The positioning groove 130 is a concave surface in an arc shape around the opening of the key 200, so that the key 200 is an embedded structure as a whole, which can prevent accidental touching of the key 200 and reduce dust accumulation on the key 200.

[0043] In some embodiments, one end of the key column 220 away from the key front end 210 extends out of the second section receiving groove 112 and forms an elastic limiting portion 221, which cooperates with the end of the second section receiving groove 112 to limit the pressing stroke of the key 200 relative to the installation port 110.

[0044] During implementation, the front end 210 of the key is embedded in the first section of the receiving groove 111, the first end of the key column body 220 is connected to the front end of the key, the second end of the key column body 220 forms an elastic limiting portion 221, and the key column body 220 is inserted into the second section of the receiving groove 112, so that the elastic limiting portion 221 extends out of the second section of the receiving groove 112. Since the diameter of the front end 210 of the key is larger than the diameter of the second section of the receiving groove 112, and the diameter of the elastic limiting portion 221 is larger than the diameter of the second section of the receiving groove 112, the pressing stroke of the key 200 is jointly limited by the front end 210 of the key and the elastic limiting portion 221.

[0045] In some embodiments, the elastic limiting portion 221 is an elastic double buckle disposed at an end of the key column 220 away from the key front end 210 .

[0046] The elastic double buckle can undergo a certain elastic deformation. When the case is assembled with the mounting opening 110, the elastic double buckle can shrink inward to reduce the diameter of the elastic double buckle. For example, a guiding slope 222 is provided at one end of the elastic double buckle away from the key column 220. During assembly, the connection between the first section receiving groove 111 and the second section receiving groove 112 contacts the guiding slope 222. When the user pushes the key 200, the elastic double buckle shrinks inward and is embedded in the second section receiving groove 112. The key 200 is pushed continuously to make the elastic double buckle pass through the second section receiving groove 112. The elastic double buckle returns to its original state without external force, thereby clamping the end of the second section receiving groove 112. At the same time, the embedded groove between the elastic double buckles can be embedded with a switch. When the user starts to apply force to the key 200, the key 200 starts to move to trigger the switch and realize the function of the key 200. However, when the user withdraws the force, the switch pushes the key 200 back to its original position under its own elastic force, ending the function of the key 200.

[0047] Embodiment 2

[0048] In some optional embodiments, the present application also provides an anesthesia machine, including a PCB socket assembly 300 and a button 200 structure as described above, wherein the PCB socket assembly 300 is connected to the device housing 100 , and the PCB socket assembly 300 has a switch connected to the button 200 .

[0049] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the structure and implementation principle of the anesthesia machine described above can refer to the corresponding structure and implementation principle in the aforementioned embodiment 1, and will not be repeated here.

[0050] The key 200 structure of the present application comprises a device housing 100 and a key 200, wherein the device housing 100 has an installation opening 110, and the installation opening 110 comprises a first section receiving groove 111 and a second section receiving groove 112, wherein the diameter of the first section receiving groove 111 is greater than the diameter of the second section receiving groove 112, and the key 200 comprises a key front end 210 and a key column body 220, wherein the key front end 210 is embedded in the first section receiving groove 111, and the key column body 220 is at least partially embedded in the second section receiving groove 112 and is slidably connected to the second section receiving groove 112, and the installation opening 110 is provided with a first limiting portion 120, and the key 200 is provided with a second limiting portion 230, wherein the first limiting portion 120 and the second limiting portion 230 cooperate to limit the assembly direction of the key 200 relative to the installation opening 110, thereby ensuring that the assembly direction of the key 200 is installed normally, and the structure is simple and reliable, and can be quickly assembled and disassembled.

[0051] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A key structure, characterized in that: The invention comprises a device housing and a button, wherein the device housing has an installation opening, wherein the installation opening comprises a first section receiving groove and a second section receiving groove, wherein the diameter of the first section receiving groove is larger than the diameter of the second section receiving groove, wherein the button comprises a key front end and a key column body, wherein the key front end is embedded in the first section receiving groove, wherein the key column body is at least partially embedded in the second section receiving groove and is slidably connected to the second section receiving groove, wherein the installation opening is provided with a first limiting portion, and wherein the button is provided with a second limiting portion, wherein the first limiting portion and the second limiting portion cooperate to limit the assembly direction of the button relative to the installation opening.

2. The key structure according to claim 1, characterized in that: The first limiting portion is a limiting protrusion arranged on the second section accommodating groove, and the second limiting portion is a limiting groove arranged on the key column body for cooperating with the limiting protrusion.

3. The key structure according to claim 1, characterized in that: The pressing plane at the front end of the key is flush with the device housing, and the first end of the pressing plane is larger than the second end of the pressing plane.

4. The key structure according to claim 3, characterized in that: A concave hand-pressing position is arranged in the middle of the pressing plane.

5. The key structure according to claim 1, characterized in that: One end of the key column away from the front end of the key extends out of the second section receiving groove and forms an elastic limiting portion, and the elastic limiting portion cooperates with the end of the second section receiving groove to limit the pressing stroke of the key relative to the installation opening.

6. The key structure according to claim 5, characterized in that: The elastic limiting portion is an elastic double buckle arranged at an end of the key column away from the front end of the key.

7. The key structure according to claim 6, characterized in that: One end of the elastic double buckle away from the key column is provided with a guiding inclined surface.

8. The key structure according to claim 6, characterized in that: An embedding groove matched with the switch is provided between the elastic double buckles.

9. The key structure according to claim 1, characterized in that: The device housing is provided with a positioning groove, and the mounting opening is provided in the positioning groove.

10. An anesthesia machine, characterized in that: It comprises a PCB socket assembly and a key structure as described in any one of claims 1 to 9, wherein the PCB socket assembly is connected to a device housing, and the PCB socket assembly has a switch connected to the key.

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