CN219716715U - Key and ventilation treatment equipment with same - Google Patents

Abstract

The utility model relates to the field of control elements and discloses a key and ventilation treatment equipment with the same, wherein the key comprises a key main body (1) and a key connecting part (2), the key main body (1) is provided with at least two key functional parts (11, 12), the end parts of the adjacent key functional parts (11, 12) are opposite to each other, and a slot (13) penetrating at least the pressing side (1 a) of the key main body (1) is formed between the end parts; the key connection portions (2) have a rigidity smaller than the key function portions (11, 12) and are connected to adjacent key function portions (11, 12) respectively across the slots (13). The method can effectively reduce production cost, design complexity and space occupation, can effectively reduce the risk of false touch, and has higher reliability and operability.

Description

Key and ventilation treatment equipment with same

Technical Field

The utility model relates to a control element, in particular to a key. On the basis, the utility model also relates to ventilation treatment equipment with the key.

Background

In the use of various types of charging equipment, control and operation are often required by using control elements such as keys, knobs and the like. For example, ventilation treatment devices (such as a ventilator) generally include a machine body and a humidifier mounted thereon, where the machine body may be connected with a control element such as a key, and by physically pressing the key, the internal structure of the key may be changed, so as to trigger a sensor or a switch, and convert a signal of the key into a signal that can be recognized by a computer, thereby implementing operations such as on/off control and parameter setting.

To facilitate manipulation to perform different functions, a plurality of keys may be coupled to the machine body. However, these keys need to be manufactured and assembled separately to the machine body, not only increasing production cost and design complexity, but also taking up more body space. Thus, when designing a device with multiple keys, it is often attempted to integrate the multiple keys together, and implement different functions in the form of composite keys, which reduces production costs, design complexity, and space occupation, while also being more convenient to maintain and use.

The integrally provided keys are typically formed as one body from a plurality of key functions using an injection molding process. When a user needs to press a certain key function part, other key function parts may be touched by mistake, thereby generating a risk of misoperation, and having relatively low reliability and operability.

Disclosure of Invention

The utility model aims to provide a key which integrates a plurality of key functional parts and has high reliability and operability.

In order to achieve the above object, an aspect of the present utility model provides a key comprising:

a key body having at least two key function parts, end parts of adjacent key function parts being opposite to each other, and a slot penetrating at least a pressing side of the key body being formed between the end parts;

and key connection parts having a rigidity smaller than that of the key function parts and connected to the adjacent key function parts, respectively, across the slots.

Preferably, the key main body has a first key function section and a second key function section adjacent to each other as the key function section, and the key connection section is injection-molded integrally with the first key function section and the second key function section.

Preferably, the key connecting part is formed with an arc-shaped extension protruding in a direction away from the pressing side of the key main body at a position corresponding to the slot.

Preferably, at the ends opposite to each other, both sides of the adjacent key function parts are connected to each other, respectively, and the slot penetrates through one side of the key main body facing away from the pressing side through a portion between the connection positions.

Preferably, the key connection part is arranged on one side of the key main body, which is away from the pressing side.

Preferably, the material hardness of the key connection part is smaller than that of the key function part, and the key connection part and the corresponding key function part are connected into a whole through double-shot molding.

Preferably, the key function is formed with a protrusion protruding toward the key connection part, and the key connection part is formed with a connection hole corresponding to the protrusion.

Preferably, the key connection part is connected to a side of the respective key function part facing away from the pressing side by in-mold insert injection molding.

Preferably, the pressing surface of each of the key function parts on the pressing side is provided with an in-mold insert injection film, respectively.

Preferably, the key connecting part is connected with the corresponding key functional part through in-mold insert injection molding.

Preferably, the key connection part is formed to cover at least the pressing side of the key main body.

A second aspect of the present utility model provides a ventilation therapy apparatus, including an apparatus main body and a humidifier mounted on the apparatus main body, wherein the apparatus main body is connected with the above-mentioned key, and can be manipulated by the key function part to perform different functions.

Through the technical scheme, the key comprises at least two key functional parts connected by the key connecting part, so that the production cost, the design complexity and the space occupation can be effectively reduced compared with the separated key. When a user presses one of the key function parts, the formed slot can effectively reduce the transmission of force to the adjacent key function part, and the risk of false touch can be effectively reduced due to the relatively smaller rigidity of the key connection part, so that the key connection part has higher reliability and operability.

Drawings

FIG. 1 is a schematic diagram of a ventilation therapy device in accordance with a preferred embodiment of the present utility model;

fig. 2 is a perspective view of a key according to a first preferred embodiment of the present utility model;

FIG. 3 is a front view of the key of FIG. 2;

FIG. 4 is a bottom view of the key of FIG. 2;

FIG. 5 is a cross-sectional view of the key of FIG. 2;

FIG. 6 is an enlarged view of portion A of FIG. 5;

FIG. 7 is an exploded view of the key of FIG. 2;

fig. 8 is a perspective view of a key according to a second preferred embodiment of the present utility model;

FIG. 9 is a front view of the key of FIG. 8;

FIG. 10 is a bottom view of the key of FIG. 8;

FIG. 11 is a cross-sectional view of the key of FIG. 8;

FIG. 12 is an enlarged view of part B of FIG. 11;

FIG. 13 is an exploded view of the key of FIG. 8;

fig. 14 is a perspective view of a key according to a third preferred embodiment of the present utility model;

FIG. 15 is a bottom view of the key of FIG. 14;

FIG. 16 is a cross-sectional view of the key of FIG. 14;

FIG. 17 is an enlarged view of part C of FIG. 16;

FIG. 18 is an exploded view of the key of FIG. 14;

fig. 19 is an exploded view of the key of fig. 14 from another perspective.

Description of the reference numerals

1-a key body; 1 a-pressing side; 11-a first key function section; 11 a-a first pressing surface; 12-a second key function section; 12 a-a second pressing surface; 13-slots; 14-bulge; 2-key connection parts; 21-an arcuate extension; 22-connecting holes; 10-key; 20-an apparatus body; 30-humidifier.

Detailed Description

The following describes specific embodiments of the present utility model in detail with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the utility model, are not intended to limit the utility model.

In the present utility model, unless otherwise specified, terms such as "upper, lower, left, and right" and "upper, lower, left, and right" are used generically to refer to the upper, lower, left, and right illustrated in the drawings; "inner and outer" means inner and outer relative to the contour of the respective parts themselves.

Fig. 1 is a schematic view showing a structure of a ventilation therapy apparatus including an apparatus main body 20 and a humidifier 30 schematically mounted on the apparatus main body 20 so as to be able to supply humidified gas to a patient through a respiratory line (not shown). The key 10 is connected to the device main body 20, and the device main body 20 can be controlled by pressing the key 10, so that operations such as on-off control and parameter setting are realized. The present utility model provides a key 10 that can be used in the ventilation therapy device, and in combination with various preferred embodiments shown in fig. 2 to 19, the key 10 is integrated with a first key function portion 11 and a second key function portion 12, and by selectively pressing at least one of the first key function portion 11 and the second key function portion 12, operation of the device main body 20, such as on/off, gas flow adjustment, and gas supply humidity adjustment, can be achieved. It will be appreciated that although the key 10 provided in the present utility model is described in detail herein with respect to a ventilation therapy device, the application of the key 10 is not limited thereto, and may be used in other powered devices.

The key 10 provided by the utility model comprises a key main body 1 and a key connecting part 2, wherein the key main body 1 comprises a first key functional part 11 and a second key functional part 12 which can be used as different functional areas to be respectively triggered to enable the equipment main body 20 to execute different functions (including on-off control). The first key function part 11 and the second key function part 12 are opposite to each other with a slot 13 formed between the opposite ends, the slot 13 being open at least at the pressing side 1a of the key main body 1, i.e. penetrating the pressing side 1a of the key main body 1. The key connection part 2 has a rigidity smaller than the first key function part 11 and the second key function part 12, and is connected to the first key function part 11 and the second key function part 12, respectively, across the slot 13.

By integrating the first key function part 11 and the second key function part 12 connected by the key connection part 2, the key 10 of the present utility model can effectively reduce production cost, design complexity and space occupation compared with a separate key. When a user presses one of the first key function part 11 and the second key function part 12, the slit 13 formed therebetween can effectively reduce the transmission of force to the other, and since the key connecting part 2 has relatively small rigidity, the risk of false touch can be effectively reduced, thus having high reliability and operability. In order to make the key connecting part 2 have a small rigidity with respect to the first key functional part 11 and the second key functional part 12, it may be obtained by selecting it from a material hardness, as described in the preferred embodiment later, or by forming the key connecting part 2 to have a relatively thin connecting membrane.

Although it is shown in the illustrated various preferred embodiments that the key main body 1 includes only the first key function part 11 and the second key function part 12, in other embodiments it may further include other key function parts, the end parts of two adjacent key function parts being opposite to each other with the slot 13 formed therebetween, and being connected to each other by the key function part 2.

Wherein the opposite ends of the first and second key function parts 11 and 12 may be arranged parallel to each other with a suitable gap to reduce the risk of dust accumulation, water ingress through the slot 13 while allowing a certain degree of relative movement of the two. And at the ends of the first key function part 11 and the second key function part 12 facing away from each other, may be formed to have arc-shaped transition angles, respectively, thereby having a good aesthetic appearance when being connected to the apparatus main body 20. In addition, the first pressing surface 11a of the first key function part 11 and the second pressing surface 12a of the second key function part 12 may be disposed to lie on the same plane, which may be advantageous in ensuring the surface smoothness and beauty of the device.

Fig. 2 to 7 show a key according to a first preferred embodiment of the present utility model. As described above, the key includes the key main body 1 and the key connecting part 2, wherein the key main body 1 has the first key function part 11 and the second key function part 12 arranged with the end parts facing each other, and the slot 13 is provided between the first key function part 11 and the second key function part 12. The key connecting part 2 is connected to the first key functional part 11 and the second key functional part 12 across the slot 13, respectively.

The first key function part 11 and the second key function part 12 may be made of a relatively hard material such as PC, ABS, etc.; the key connecting part 2 may be made of a relatively soft material such as TPU, TPE, etc., and thus the key connecting part 2 may be formed to have a rigidity smaller than the first key function part 11 and the second key function part 12.

Wherein the key connecting part 2 is provided at a side of the key main body 1 facing away from the pressing side 1a (i.e., the first pressing surface 11a and the second pressing surface 12 a), and is connected to the first key function part 11 and the second key function part 12, respectively, across the slot 13. In the manufacturing process, the key connecting part 2 can be connected with the first key functional part 11 and the second key functional part 12 into a whole in a double-shot molding mode, and has the advantages of simple process, high safety reliability and the like.

In order to ensure high connection strength, the first key function part 11 and the second key function part 12 may be formed with protrusions 14 protruding toward the key connection part 2; accordingly, the key connecting part 2 is formed with a connecting hole 22 corresponding to the protrusion 14. In other embodiments, the positions of the protrusions 14 and the connection holes 22 may be fully or partially interchanged, for example, a connection hole (e.g., a blind hole) is formed in the first key function part 11 and the second key function part 12, and a protrusion corresponding to the connection hole is formed in the key connection part 2, so that the connection strength thereof may be improved.

In the preferred embodiment, as shown in fig. 6 and 7, the key connecting part 2 may be formed with an arc-shaped extension 21 protruding in a direction away from the pressing side 1a of the key main body 1 at a position corresponding to the slot 13 on the key main body 1, whereby, when one of the first key functional part 11 and the second key functional part 12 is operated, force transmission and deformation occurring on the key connecting part 2 are increased by the arc-shaped extension 21, and triggering linkage resulting in the other of the first key functional part 11 and the second key functional part 12 can be effectively avoided, thereby ensuring reliability of keys.

In addition, at the ends opposite to each other, both sides of the first key function part 11 and the second key function part 12 are connected to each other, respectively, such that the slot 13 is open at the side of the key main body 1 facing away from the pressing side 1a, i.e., the slot 13 penetrates through the side of the key main body 1 facing away from the pressing side 1a. By connecting the first key function part 11 and the second key function part 12 by the hard material of the key main body 1 itself and the connection area remaining only at both side portions, it is possible to avoid the two key function parts from being deformed and tilted to one side by the connection of the key connection part 2 of the soft material only.

Fig. 8 to 13 show a key according to a second preferred embodiment of the present utility model. Similar to the foregoing preferred embodiment, the key comprises a key main body 1 and a key connecting part 2, wherein the key main body 1 has a first key function part 11 and a second key function part 12 arranged with their ends facing each other, with a slot 13 provided between the first key function part 11 and the second key function part 12. The key connecting part 2 is connected to the first key functional part 11 and the second key functional part 12 across the slot 13, respectively.

The first key function part 11 and the second key function part 12 may be made of a material such as PC, ABS, or the like; the key connecting part 2 may be a connecting membrane made of a material such as PC, PET, or the like, whereby the key connecting part 2 may be formed to have a rigidity smaller than the first key function part 11 and the second key function part 12.

Wherein the key connection part 2 is provided at a side of the key main body 1 facing away from the pressing side 1a and is connected to the first key function part 11 and the second key function part 12, respectively, across the slot 13. In the manufacturing process, the key connecting part 2 can be connected with the first key functional part 11 and the second key functional part 12 into a whole in an in-mold insert Injection (IML) mode, and has the advantages of simple process, high safety reliability and the like.

In the preferred embodiment, as shown in fig. 12 and 13, the key connecting part 2 may be formed with an arc-shaped extension 21 protruding in a direction away from the pressing side 1a of the key main body 1 at a position corresponding to the slot 13 on the key main body 1, whereby, when one of the first key functional part 11 and the second key functional part 12 is operated, force transmission and deformation occurring on the key connecting part 2 are increased by the arc-shaped extension 21, and triggering linkage resulting in the other of the first key functional part 11 and the second key functional part 12 can be effectively avoided, thereby ensuring reliability of keys.

The first pressing surface 11a and the second pressing surface 12a of the first key function part 11 and the second key function part 12 may also be provided with an in-mold insert injection film so as to form a covered indication pattern or character on each key function part and to be able to keep a vivid color for a long period of time without being easily discolored or scratched.

Unlike the first preferred embodiment, this second preferred embodiment is not connected to each other at the ends of the first key function part 11 and the second key function part 12 opposite to each other, but such that the slot 13 is completely opened at the side of the key main body 1 facing away from the pressing side 1a, and the first key function part 11 and the second key function part 12 are connected as one body only by the key connection part 2.

In an alternative embodiment, at the ends facing each other, the two sides of the first key function part 11 and the second key function part 12 may also be connected to each other, respectively, such that the slot 13 is open at the side of the key body 1 facing away from the pressing side 1a. By connecting the first key function part 11 and the second key function part 12 by the hard material of the key main body 1 itself and the connection area remaining only at both side portions, it is possible to avoid the two key function parts from being deformed and tilted to one side by the connection of only the key connection part 2 having a smaller rigidity.

Fig. 14 to 19 show a key according to a third preferred embodiment of the present utility model. Similar to the foregoing preferred embodiment, the key comprises a key main body 1 and a key connecting part 2, wherein the key main body 1 has a first key function part 11 and a second key function part 12 arranged with their ends facing each other, with a slot 13 provided between the first key function part 11 and the second key function part 12. The key connecting part 2 is connected to the first key functional part 11 and the second key functional part 12 across the slot 13, respectively.

The first key function part 11 and the second key function part 12 may be made of a material such as PC, ABS, or the like; the key connecting part 2 may be a connecting membrane made of a material such as PC, PET, or the like, whereby the key connecting part 2 may be formed to have a rigidity smaller than the first key function part 11 and the second key function part 12.

Unlike the foregoing preferred embodiment, the key connecting part 2 is formed to cover the pressing side 1a and the peripheral edge of the key main body 1, and is thereby connected to the first key functional part 11 and the second key functional part 12, respectively, across the slot 13. In the manufacturing process, the key connecting part 2 can be connected with the first key functional part 11 and the second key functional part 12 into a whole in an in-mold insert Injection (IML) mode, and has the advantages of simple process, high safety reliability and the like.

In the preferred embodiment, as shown in fig. 17 and 19, at a position corresponding to the slot 13 on the key main body 1, the key connecting part 2 may be formed with an arc-shaped extension 21 protruding in a direction away from the pressing side 1a of the key main body 1, the arc-shaped extension 21 protruding into the slot 13. Thus, when one of the first key function part 11 and the second key function part 12 is operated, the force transmission and deformation formation occurring on the key connecting part 2 is increased by the arc-shaped extension section 21, and the triggering linkage of the other one of the first key function part 11 and the second key function part 12 can be effectively avoided, thereby ensuring the reliability of the keys.

In addition, at the ends opposite to each other, both sides of the first key function part 11 and the second key function part 12 are connected to each other, respectively, such that the slot 13 is open at the side of the key main body 1 facing away from the pressing side 1a, i.e., the slot 13 penetrates through the side of the key main body 1 facing away from the pressing side 1a. By connecting the first key function part 11 and the second key function part 12 by the hard material of the key main body 1 itself and the connection area remaining only at both side portions, it is possible to avoid the two key function parts from being deformed and tilted to one side by the connection of only the key connection part 2 having a smaller rigidity.

The keys of the above-described various preferred embodiments may be used in a ventilation therapy device such as a ventilator, the ventilation therapy device including a device body 20 and a humidifier 30 mounted on the device body 20, the keys being connected to the device body 20, the device body 20 being capable of being manipulated by the first key function portion 11 and the second key function portion 12 of the keys to perform different functions.

The preferred embodiments of the present utility model have been described in detail above with reference to the accompanying drawings, but the present utility model is not limited thereto. Within the scope of the technical idea of the utility model, a number of simple variants of the technical solution of the utility model are possible, including combinations of individual specific technical features in any suitable way. The various possible combinations of the utility model are not described in detail in order to avoid unnecessary repetition. Such simple variations and combinations are likewise to be regarded as being within the scope of the present disclosure.

Claims (12)

1. A key, comprising:

a key body (1), the key body (1) having at least two key functional parts (11, 12), the end parts of adjacent key functional parts (11, 12) being opposite to each other, and a slot (13) penetrating at least a pressing side (1 a) of the key body (1) being formed between the end parts;

a key connection portion (2), the key connection portion (2) having a rigidity smaller than that of the key function portion (11, 12) and being connected to adjacent key function portions (11, 12) respectively across the slot (13).

2. The key according to claim 1, characterized in that the key main body (1) has a first key function part (11) and a second key function part (12) adjacent to each other as the key function parts (11, 12), and the key connection part (2) is injection-molded integrally with the first key function part (11) and the second key function part (12).

3. A key according to claim 1, characterized in that the key connection part (2) is formed with an arc-shaped extension (21) protruding in a direction away from the pressing side (1 a) of the key body (1) at a position corresponding to the slot (13).

4. A key according to claim 1, characterized in that at the ends opposite each other, the two sides of adjacent key functions (11, 12) are connected to each other, respectively, and such that the slot (13) penetrates the side of the key body (1) facing away from the pressing side (1 a) by means of the part between the connection locations.

5. The key according to claim 1, characterized in that the key connection (2) is provided on a side of the key body (1) facing away from the pressing side (1 a).

6. The key according to claim 5, characterized in that the material hardness of the key connecting part (2) is smaller than the material hardness of the key functional parts (11, 12) and is connected with the corresponding key functional parts (11, 12) into a whole by double-shot molding.

7. A key according to claim 6, characterized in that the key function part (11, 12) is formed with a protrusion (14) protruding towards the key connection part (2), and the key connection part (2) is formed with a connection hole (22) corresponding to the protrusion (14).

8. A key according to claim 5, characterized in that the key connection part (2) is connected to the side of the respective key function part (11, 12) facing away from the pressing side (1 a) by means of in-mold insert injection.

9. A key as defined in claim 8, wherein each of said key functions (11, 12) is provided with an in-mold insert injection molded film on a pressing surface (11 a,12 a) of said pressing side (1 a), respectively.

10. A key according to claim 1, characterized in that the key connection part (2) is connected to the respective key function part (11, 12) by means of in-mold insert injection.

11. The key according to claim 10, characterized in that the key connection part (2) is formed to cover at least the pressing side (1 a) of the key body (1).

12. Ventilation therapy device, characterized by comprising a device body (20) and a humidifier (30) mounted on the device body (20), the device body (20) being connected with keys (10) according to any one of claims 1 to 11 and being operable by the key functions (11, 12) to perform different functions.