CN220585103U - Soft rubber key and handheld dental medical equipment - Google Patents
Soft rubber key and handheld dental medical equipment Download PDFInfo
- Publication number
- CN220585103U CN220585103U CN202322297226.XU CN202322297226U CN220585103U CN 220585103 U CN220585103 U CN 220585103U CN 202322297226 U CN202322297226 U CN 202322297226U CN 220585103 U CN220585103 U CN 220585103U
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- Prior art keywords
- key
- pressing
- soft rubber
- key body
- spring arm
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- 239000000084 colloidal system Substances 0.000 claims abstract description 18
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 238000007789 sealing Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 238000001746 injection moulding Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Abstract
The utility model relates to the technical field of dental medical equipment, in particular to a soft rubber key and handheld dental medical equipment, wherein the soft rubber key comprises: the key comprises a key body, a pressing part and a spring arm, wherein the key body is provided with a hollow part, the pressing part and the spring arm, the hollow part is arranged at a position on the key body corresponding to a region where the pressing switch is located, the spring arm extends from the key body into the hollow part, the pressing part is connected with one end of the spring arm extending into the hollow part, and the pressing part is arranged corresponding to the pressing switch; the soft colloid is fixed on the key body in a sheet shape, and covers the hollow part. According to the utility model, the pressing and rebounding of the pressing switch are realized by arranging the hollow part on the key body and arranging the pressing part and the spring arm in the hollow part, the waterproof effect of the key is improved by covering the soft colloid, the structure is simple, parts are fewer, the cost is saved, and the failure rate of the key is reduced.
Description
Technical Field
The utility model relates to the technical field of dental medical equipment, in particular to a soft rubber key and handheld dental medical equipment.
Background
The mechanical keys are widely applied, but in an outdoor humid environment, accidents are often caused by short circuit or electric leakage due to high humidity or rainwater;
in the prior art, for example, a Chinese patent with an authorized bulletin number of CN219226118U discloses a waterproof key and a dental medical device with the waterproof key in 2023, 6 and 20 days, wherein a key cap and a connecting piece vertically connected with the key cap are arranged on a key body, and the functions of sealing and rebounding are realized through the arrangement of an elastic sealing piece, so that the waterproof performance of the key is improved;
however, the inventor finds that the key structure is complex, which results in higher cost and higher failure rate due to more parts, for example, the elastic sealing element is easy to age to cause sealing failure, or the key gap is too small to be blocked and can not rebound, and in addition, the conduction problem of static electricity is easy to occur no matter the gap is too large or too small.
Disclosure of Invention
In view of at least one of the above technical problems, the present utility model provides a soft rubber key and a handheld dental medical device, which adopt structural improvement to reduce failure rate of the waterproof key.
According to a first aspect of the present utility model, there is provided a soft rubber key comprising:
the key comprises a key body, a pressing part and a spring arm, wherein the key body is provided with a hollow part, the pressing part and the spring arm, the hollow part is arranged at a position on the key body corresponding to a region where the pressing switch is located, the spring arm extends from the key body into the hollow part, the pressing part is connected with one end of the spring arm extending into the hollow part, and the pressing part is arranged corresponding to the pressing switch;
the soft colloid is fixed on the key body in a sheet shape, and covers the hollow part.
In some embodiments of the utility model, the spring arms are provided with at least two and are arranged in a centrosymmetric manner.
In some embodiments of the present utility model, the spring arm includes a start section, an extension section connected to the start section, and a connection section connected to one end of the extension section and the other end of the extension section and the pressing portion, where the start section and the connection section are arranged in a straight line, and the extension section is arranged in a curve.
In some embodiments of the utility model, the pressing portion is arranged in a circle, and the pressing portion is flush with an upper surface of the key body.
In some embodiments of the present utility model, the spring arms have two connecting sections connected at two ends of the pressing portion in a radial direction, and the extending sections have an arc shape.
In some embodiments of the utility model, the hollow is rectangular, and the two start sections are disposed at diagonal positions of the hollow.
In some embodiments of the present utility model, a surface of the soft colloid facing the key body is provided with a connection portion arranged in a protruding manner, the key body and the pressing portion are provided with hole sites matched with the connection portion, and the soft colloid is injection molded on the key body.
In some embodiments of the present utility model, the connecting portion is in a truncated cone shape, the hole site is matched with the connecting portion, and the diameters of the connecting portion and the hole site located on the inner side of the key body are larger than the diameter of the connecting portion and the hole site located on the outer side of the key body.
In some embodiments of the present utility model, the pressing portion has a convex portion on a side toward the pressing switch at the center thereof, and the soft gel has a key indicating structure at the pressing portion position.
According to a second aspect of the present utility model there is also provided a hand-held dental medical device comprising a soft gel key as in any of the first aspects.
The beneficial effects of the utility model are as follows: according to the utility model, the pressing and rebounding of the pressing switch are realized by arranging the hollow part on the key body and arranging the pressing part and the spring arm in the hollow part, and the waterproof effect of the key is improved by covering the soft colloid.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to the drawings without inventive effort to those skilled in the art.
FIG. 1 is a schematic diagram of a key body according to an embodiment of the present utility model;
FIG. 2 is a schematic diagram of a soft gel according to an embodiment of the present utility model;
FIG. 3 is a schematic cross-sectional view of a soft rubber key according to an embodiment of the present utility model;
fig. 4 is a schematic structural diagram of an internal view angle of a soft rubber key according to an embodiment of the present utility model;
FIG. 5 is an enlarged view of a portion of FIG. 4 according to an embodiment of the present utility model;
FIG. 6 is an enlarged view of a portion of the portion B of FIG. 3 in accordance with an embodiment of the present utility model;
fig. 7 is a schematic structural diagram of an external view angle of a soft rubber key according to an embodiment of the present utility model.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
The soft rubber key as shown in fig. 1 to 7 comprises a key body 1 and a soft rubber body 2, wherein:
as shown in fig. 1, the key body 1 is provided with a hollow part 11, a pressing part 12 and a spring arm 13, the hollow part 11 is arranged on the key body 1 at a position corresponding to a region where a pressing switch (not shown in the figure) is positioned, the spring arm 13 extends from the key body 1 into the hollow part 11, the pressing part 12 is connected with one end of the spring arm 13 extending into the hollow part 11, and the pressing part 12 is arranged corresponding to the pressing switch; it should be noted that, in the embodiment of the present utility model, the key body 1 may be made of a plastic material, and due to the arrangement of the pressing portion 12 connected by the spring arm 13 in the hollow portion 11, the pressing portion 12 may deform relative to the key body 1, so that the body of the pressing portion 12 is pressed down when the external is pressed, and then the pressing portion 12 moves down to contact with the pressing switch to trigger the switch, and when the external force disappears, the pressing portion 12 is reset due to the action of the spring arm 13, so as to replace the elastic sealing element in the prior art;
as shown in fig. 2 and 3, the soft colloid 2 is fixed to the key body 1 in a sheet shape, and the soft colloid 2 is disposed to cover the hollow portion 11. Therefore, through the coverage of the soft colloid 2, the holes of the key body 1 are covered by the soft colloid 2, the soft colloid 2 not only realizes the sealing function and improves the waterproof effect of the key body 1, but also can improve the touch sense and improve the use feeling of a user when pressing the key; it should be noted that in some embodiments of the present utility model, the fixing connection manner of the soft colloid 2 and the key body 1 is multiple, and may be in an adhesive form or other connection manners, so that by the above arrangement, the usage amount of components is reduced, the reliability is improved, and the sealing performance and the usage feeling are improved by the covering of the soft colloid 2.
In the above embodiment, the pressing and rebounding of the pressing switch are realized by the manner of arranging the hollow part 11 on the key body 1 and the pressing part 12 and the spring arm 13 arranged in the hollow part 11, and the waterproof effect of the key is improved by the covering of the soft colloid 2.
On the basis of the above-described embodiment, as shown in fig. 5, the spring arms 13 are provided with at least two, and are arranged in a center-symmetrical manner. By arranging in a central symmetry manner, the pressing portion 12 can be made to be uniformly stressed at the time of rebound, thereby improving the use reliability. With reference to fig. 5, in some embodiments of the present utility model, the spring arm 13 includes a start section 13a, an extension section 13b connected to the start section 13a, and a connection section 13c connected to one end of the extension section 13b and the other end of the extension section 13b connected to the pressing portion 12, where the start section 13a and the connection section 13c are arranged in a straight line, and the extension section 13b is arranged in a curved line. By setting the extension section 13b in a curved shape, the length of the spring arm 13 can be increased, and the deformable amount of the pressing portion 12 can be increased, so that the stress on the spring arm 13 is reduced each time, and the possibility of damage to the spring arm 13 due to pressing is reduced.
With continued reference to fig. 1 and 4, in the embodiment of the present utility model, the pressing portion 12 is circularly arranged, and the pressing portion 12 is flush with the upper surface of the key body 1. By setting the pressing portion 12 to be circular, it is advantageous for an operator to press with a finger, and it is advantageous for improving the contact area and the pressing effectiveness. In some embodiments of the present utility model, as shown in fig. 5, the hollow portion 11 is rectangular, two initial sections 13a are provided at diagonal positions of the hollow portion 11, the spring arms 13 have two, connecting sections 13c of the two spring arms 13 are connected at both ends in the radial direction of the pressing portion 12, and the extension sections 13b are arc-shaped. By the arrangement of the structure, the space of the hollow part 11 is reasonably utilized, the occupied area of the pressing part 12 is considered, and the force application balance of the spring arm 13 is improved.
In some embodiments of the present utility model, referring to fig. 3 and 6, a surface of the soft gel 2 facing the key body 1 is provided with a protruding connection portion 21, the key body 1 and the pressing portion 12 are provided with hole sites 14 matching with the connection portion 21, and the soft gel 2 is injection molded on the key body 1. In particular, in some embodiments of the present utility model, the key body 1 may be injection molded first, and then the soft gel 2 may be injection molded onto the key body 1 for the second time. It should be noted that, in the embodiment of the present utility model, in order to improve the connection reliability of the soft colloid 2 and the key body 1, the injection molding method can avoid the inflow of the liquid from the gap between the soft colloid 2 and the key body 1, thereby further improving the waterproof performance of the soft colloid key.
On the basis of the above embodiment, please continue to refer to fig. 6, in order to further improve the connection reliability between the soft gel 2 and the key body 1 in the embodiment of the present utility model, the connection portion 21 is in a truncated cone shape, the shape of the hole site 14 is matched with the connection portion 21, and the diameters of the connection portion 21 and the hole site 14 located inside the key body 1 are larger than the diameter of the outside. By this configuration, the connection portion 21 is formed as a truncated cone with a larger lower part and a smaller upper part, and by the engagement with the hole 14 with the same smaller lower part and the smaller upper part, a downward reaction force can be provided, so that the separation between the soft rubber body 2 and the key body 1 can be reduced to the greatest extent.
As shown in fig. 5, in order to avoid the connection portion 21 on the pressing portion 12 from contacting the pressing switch during pressing, in the embodiment of the present utility model, the pressing portion 12 has a protrusion 12a on a side toward the pressing switch at the center, and by the provision of the protrusion 12a, the protrusion 12a is ensured to contact the pressing switch, improving reliability of use, and in addition, as shown in fig. 7, in some embodiments of the present utility model, the soft gel 2 has a key indicating structure 22 at the position of the pressing portion 12. The purpose of the key indication structure 22 herein is to facilitate the operator to observe the position of the pressing portion 12, for example, it may be an annular concave formed on the soft gel 2 around the pressing portion 12 during injection molding, or a convex structure formed on the soft gel 2 above the pressing portion 12, so as to achieve the function of key indication.
In another aspect of the present utility model, there is also provided a handheld dental medical device comprising the above soft gel key. It should be noted that, in the embodiment of the present utility model, the soft rubber key may be connected to the medical device in a screw connection, a riveting connection, a snap connection, or the like.
It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (10)
1. A soft rubber key, comprising:
the key comprises a key body, a pressing part and a spring arm, wherein the key body is provided with a hollow part, the pressing part and the spring arm, the hollow part is arranged at a position on the key body corresponding to a region where the pressing switch is located, the spring arm extends from the key body into the hollow part, the pressing part is connected with one end of the spring arm extending into the hollow part, and the pressing part is arranged corresponding to the pressing switch;
the soft colloid is fixed on the key body in a sheet shape, and covers the hollow part.
2. The soft rubber key according to claim 1, wherein at least two spring arms are provided and are arranged in a central symmetrical manner.
3. The soft rubber key according to claim 2, wherein the spring arm comprises a starting section, an extending section connected with the starting section, and a connecting section with one end connected with the extending section and the other end connected with the pressing part, the starting section and the connecting section are arranged in a straight line, and the extending section is arranged in a curve.
4. A soft rubber key according to claim 3, wherein the pressing portions are circularly arranged and flush with the upper surface of the key body.
5. The soft rubber key according to claim 4, wherein the spring arms are two, the connecting sections of the two spring arms are connected at two radial ends of the pressing part, and the extending sections are arc-shaped.
6. The soft rubber key according to claim 5, wherein the hollow portion is rectangular, and the two initial sections are disposed at diagonal positions of the hollow portion.
7. The soft rubber key according to claim 1, wherein a convex connecting portion is arranged on one surface of the soft rubber body facing the key body, hole sites matched with the connecting portion are arranged on the key body and the pressing portion, and the soft rubber body is injection molded on the key body.
8. The soft rubber key according to claim 7, wherein the connecting portion is in a round table shape, the hole site is matched with the connecting portion, and the diameters of the connecting portion and the hole site located on the inner side of the key body are larger than those of the connecting portion and the hole site located on the outer side of the key body.
9. The soft rubber key according to claim 1, wherein a convex part is arranged on one side of the pressing part, which faces to the pressing switch, of the pressing part center, and the soft rubber body is provided with a key indication structure at the position of the pressing part.
10. A hand-held dental medical device comprising a soft gel button according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322297226.XU CN220585103U (en) | 2023-08-24 | 2023-08-24 | Soft rubber key and handheld dental medical equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322297226.XU CN220585103U (en) | 2023-08-24 | 2023-08-24 | Soft rubber key and handheld dental medical equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220585103U true CN220585103U (en) | 2024-03-12 |
Family
ID=90122821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322297226.XU Active CN220585103U (en) | 2023-08-24 | 2023-08-24 | Soft rubber key and handheld dental medical equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220585103U (en) |
-
2023
- 2023-08-24 CN CN202322297226.XU patent/CN220585103U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |