Key structure and scalpel pen

Abstract

The utility model discloses a kind of key structure and scalpel pen, including shell and key part;The mounting hole and the clearance hole are opened in the shell;The key part is set in shell, including multiple keys, connecting rib and adjusting positioning column, multiple the keys are sequentially connected by multiple connecting ribs, the adjusting positioning column is set on connecting rib, the key and mounting hole clearance fit, the adjusting positioning column and clearance hole clearance fit, the one end of the adjusting positioning column located outside shell is equipped with reverse buckling face, the reverse buckling face can be abutted with the outer wall of shell. Use above-mentioned one kind of key structure, multiple keys and adjusting positioning column are connected as a whole by connecting rib, more convenient manufacturing and assembly, also reduce production cost.And by buckling adjusting positioning column can provide larger resilience to key, improve the pressing feeling of key.

Description

Technical Field

[0001] This utility model relates to the field of high-frequency surgical electrode technology, specifically to a button structure and a surgical pen. Background Technology

[0002] High-frequency surgical electrodes are surgical instruments that work by using high-frequency current to cut, coagulate, or vaporize tissue. The high-frequency current generates high temperatures in a short time, causing rapid vaporization and separation of the tissue, achieving multiple effects simultaneously, including cutting, coagulation, and wound closure. Compared to traditional mechanical cutting instruments, this method effectively reduces bleeding and surgical trauma, while also shortening operation time and postoperative recovery period, thus improving surgical safety.

[0003] In existing technologies, the three buttons on the handle of high-frequency surgical electrodes are mostly designed as separate units, each being an independent button. This structure has the disadvantages of being inconvenient to assemble and position, and the lack of elasticity results in a poor button feel. Although some products add elastic components such as rubber pads under the buttons to improve elasticity and feel, this adds an extra part, increasing manufacturing costs and assembly difficulty. Utility Model Content

[0004] In view of the shortcomings of the existing technology, this utility model proposes a button structure and a surgical pen, which can improve the integrity of the button and the rebound force of the button.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a button structure and a surgical scalpel pen, wherein the button structure includes a shell and a button part;

[0006] The outer casing is provided with mounting holes and clearance holes;

[0007] The button section is located inside the housing and includes multiple buttons, connecting ribs, and adjustment positioning posts. The multiple buttons are connected sequentially by multiple connecting ribs. The adjustment positioning posts are located on the connecting ribs. The buttons are fitted with mounting holes with clearance, and the adjustment positioning posts are fitted with clearance holes with clearance. One end of the adjustment positioning posts located outside the housing has an undercut surface that can abut against the outer wall of the housing.

[0008] When in use, pressing the button causes the button and the adjusting positioning post to move downwards together under the action of the connecting rib. As the inverted surface gradually approaches the outer shell wall and comes into contact with it, the button is stopped. If you continue to press the button, the connecting rib will bear the pressure and begin to bend and tighten slightly because the adjusting positioning post is locked, thus making the button feel tighter until it presses against the pressing spring on the PCB.

[0009] The advantages of the aforementioned button structure are: connecting multiple buttons and adjustment positioning posts into a single unit via connecting ribs facilitates manufacturing and assembly, and reduces production costs. Furthermore, by securing the adjustment positioning posts, the buttons receive greater spring force, improving their tactile feedback.

[0010] Furthermore, the outer wall of the outer casing is provided with a raised retaining wall that extends outward along with the mounting hole and the vent hole.

[0011] The raised retaining wall is used to extend the guide distance of the mounting hole and the clearance hole to prevent the buttons and adjustment positioning pins from shaking when they move.

[0012] Furthermore, the outer casing includes two detachably connected housings, one of which has a positioning post for mounting a PCB board, and the PCB board has positioning holes that mate with the positioning post.

[0013] The locating pins and locating holes work together to guide and quickly install the PCB into the housing.

[0014] Furthermore, the housing is also provided with a support column, which and the button are located on opposite sides of the PCB board, and the support column is provided with a grid-like support rib.

[0015] The support pillars are used to support the PCB and absorb the pressure when the buttons are pressed against the PCB. The internal support ribs can improve the support effect.

[0016] Furthermore, the two shells are welded together.

[0017] Welding can improve the stability of the connection between the two shells.

[0018] Furthermore, the top of the button is provided with anti-slip texture.

[0019] The anti-slip texture is used to improve the feel when pressing the buttons.

[0020] Furthermore, the gap between the button and the mounting hole, and the gap between the adjusting positioning post and the clearance hole are both 0.02~0.1mm.

[0021] Setting an appropriate gap can improve the user experience. If the gap is too small, it will be difficult to press and affect the feel. It will also be difficult to assemble during installation. If the gap is too large, it will cause the button to wobble when pressed.

[0022] A surgical scalpel pen with a handle employing any of the button structures described above to improve the integrity and rebound of the button, facilitate assembly, and enhance the feel. Attached Figure Description

[0023] To more clearly illustrate the specific embodiments of this utility model, the accompanying drawings used in the specific embodiments will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to scale.

[0024] Figure 1 This is a schematic diagram of a button structure provided in an embodiment of the present invention;

[0025] Figure 2 for Figure 1 A schematic diagram of the button section of a button structure is shown.

[0026] Figure 3 for Figure 1 A cross-sectional view of an adjustment positioning post and a housing of a button structure is shown.

[0027] Figure 4 A schematic diagram of a surgical scalpel pen provided for one embodiment of the present utility model;

[0028] Figure label:

[0029] 1-Button structure, 2-Surgical pen;

[0030] 10-Outer shell, 101-Mounting hole, 102-Void hole, 103-Raised retaining wall, 11-Shell, 111-Positioning post, 112-Supporting post;

[0031] 20-Button section, 21-Button, 211-Anti-slip texture, 22-Connecting rib, 23-Adjustment positioning post, 231-Undercut surface;

[0032] 30 - PCB board, 31 - positioning hole. Detailed Implementation

[0033] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0034] Please see Figures 1 to 3 This utility model provides a button structure and a surgical scalpel pen. The button structure 1 includes a shell 10 and a button part 20.

[0035] Specifically, the outer casing 10 has mounting holes 101 and clearance holes 102 connecting the interior and exterior. The button section 20 is located inside the outer casing 10 and includes multiple buttons 21, connecting ribs 22, and adjusting positioning posts 23. The multiple buttons 21 are arranged sequentially along a straight line and connected sequentially by the multiple connecting ribs 22. The adjusting positioning posts 23 are located on the connecting ribs 22, and adjusting positioning posts 23 are provided between adjacent buttons 21, with adjusting positioning posts 23 also provided on the outer sides of the two outermost buttons 21. The buttons 21 are fitted with the mounting holes 101 with a clearance and extend outside the outer casing 10. The adjusting positioning posts 23 are fitted with the clearance holes 102 and extend outside the outer casing 10. One end of the adjusting positioning post 23 located outside the outer casing 10 has a backing surface 231, which can abut against the outer wall of the outer casing 10.

[0036] When in use, pressing button 21 causes button 21 and its adjacent adjusting positioning post 23 to move downwards together, as they are integrated through connecting rib 22. The distance between the undercut surface 231 and the outer wall of the housing 10 is H. As the undercut surface 231 gradually approaches the outer wall of the housing 10 (H gradually decreases) and comes into contact with the outer wall (H decreases to 0), button 21 and adjusting positioning post 23 are limited. Continuing to press button 21 causes the connecting rib 22 to bear pressure, slightly bend, and tighten, resulting in a firmer pressing feel until button 21 presses against the PCB's pressing spring. This integrated structure not only facilitates manufacturing and assembly, reducing production costs, but also provides greater rebound force to button 21, improving the pressing feel. Furthermore, by setting different distances H, the tightness of the pressing feel can be controlled.

[0037] Specifically, the outer wall of the housing 10 is provided with a raised baffle 103 that extends outward from the mounting hole 101 and the clearance hole 102 to extend the guide distance of the mounting hole 101 and the clearance hole 102, so as to prevent the button 21 and the adjustment positioning post 23 from shaking when they move, thereby improving stability.

[0038] Specifically, the outer casing 10 includes two detachably connected housings 11, one of which houses a positioning post 111 and a support post 112. The positioning post 111 is used to mount the PCB board 30. The PCB board 30 has positioning holes 31 that mate with the positioning post 111. When mounting the PCB board 30, the positioning post 111 and the positioning holes 31 work together to guide and quickly mount the PCB into the outer casing 10. The support post 112 and the button 21 are located on opposite sides of the PCB board 30. The support post 112 has internal mesh-like support ribs. The support post 112 supports the PCB and absorbs the pressure of the button 21 pressing against it; the internal support ribs enhance the support effect.

[0039] In this embodiment, the two housings 11 are welded together and installed by ultrasonic welding, which can improve the stability of the connection between the two housings 11.

[0040] Specifically, the top of button 21 is provided with anti-slip texture 211 to further improve the feel when pressing button 21.

[0041] Specifically, the gap between button 21 and mounting hole 101, and the gap between adjusting positioning post 23 and clearance hole 102 are both 0.02~0.1mm. Setting appropriate gaps can improve the usability. If the gap is too small, it will be difficult to press and affect the feel, and it will also be difficult to assemble during installation. If the gap is too large, it will cause button 21 to wobble.

[0042] like Figure 4 As shown, the handle of the scalpel pen 2 adopts the aforementioned button structure 1, thereby improving the integrity and rebound force of the button 21, facilitating assembly and improving the feel.

[0043] The working principle of the aforementioned button structure 1 and surgical pen is as follows: The PCB board 30 is installed inside the housing 11. The button 21 and the adjusting positioning post 23 pass through the mounting hole 101 and the clearance hole 102. After the undercut surface 231 is installed on the outside of the adjusting positioning post 23, the two housings 11 can be soldered together. In use, pressing the button 21 causes the button 21 and the two adjacent adjusting positioning posts 23 to move downwards together. The undercut surface 231 gradually approaches and abuts against the outer wall of the housing 10. Continued pressing causes the connecting rib 22 to bear pressure, slightly bending and tightening it, thus increasing the pressing feel until the button 21 presses against the pressing spring on the PCB.

[0044] Using the aforementioned button structure and scalpel pen, the integrated structure not only makes manufacturing and assembly easier and reduces production costs, but also provides greater rebound force to the buttons, improving the pressing feel.

[0045] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A button structure, characterized in that: Including the outer casing and button area; The outer casing is provided with mounting holes and clearance holes; The button section is located inside the housing and includes multiple buttons, connecting ribs, and adjustment positioning posts. The multiple buttons are connected sequentially by multiple connecting ribs. The adjustment positioning posts are located on the connecting ribs. The buttons are fitted with mounting holes with clearance, and the adjustment positioning posts are fitted with clearance holes with clearance. One end of the adjustment positioning posts located outside the housing has an undercut surface that can abut against the outer wall of the housing.

2. The button structure according to claim 1, characterized in that: The outer wall of the housing is provided with a raised retaining wall that extends outward along with the mounting holes and the vent hole pattern.

3. The button structure according to claim 1, characterized in that: The outer casing includes two detachably connected housings, one of which has a positioning post for mounting a PCB board, and the PCB board has positioning holes that mate with the positioning post.

4. A button structure according to claim 3, characterized in that: The housing also includes a support column, which and the button are located on opposite sides of the PCB board. The support column has a grid-like support rib inside.

5. A button structure according to claim 3, characterized in that: The two shells are welded together.

6. A button structure according to claim 1, characterized in that: The top of the button has an anti-slip texture.

7. A button structure according to claim 1, characterized in that: The gap between the button and the mounting hole, and the gap between the adjusting positioning post and the clearance hole are both 0.02~0.1mm.

8. A surgical scalpel pen, characterized in that: The handle adopts a button structure as described in any one of claims 1-7.

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