Push-pull key mounting mechanism

Abstract

The utility model belongs to the field of push-pull key structures of medical instruments, and particularly relates to a push-pull key mounting mechanism. The utility model provides a push-pull key mounting mechanism which comprises a shell with a strip-shaped hole in the surface, and a wide hole with the size larger than the width of the strip-shaped hole is formed in the strip-shaped hole. One part of the push-pull key can be inserted into the strip-shaped hole and slides back and forth in the length direction of the strip-shaped hole, and the part inserted into the strip-shaped hole is further provided with a column body which can penetrate into the wide hole but cannot be pulled out of the strip-shaped hole. According to the push-and-pull key installation mechanism, the push-and-pull key can be freely replaced under the condition that the shell is not disassembled, and the installed push-and-pull key can smoothly complete the push-and-pull function and is not prone to falling off.

Description

Technical Field

[0001] This utility model belongs to the field of push-pull key structure in medical devices, and specifically relates to a push-pull key installation mechanism. Background Technology

[0002] When using a bending guide wire, it is usually used in conjunction with a handle. The bending direction of the bending guide wire is controlled by pushing and pulling the push-pull button on the handle. The push-pull button used in the existing handles is fixed inside the handle, making it impossible to replace the push-pull button without disassembling the handle housing. If a replaceable push-pull button is used, the push-pull button is easy to fall off. Utility Model Content

[0003] The push-pull button installation mechanism provided by this utility model can effectively solve the problems in the background art.

[0004] This utility model provides a push-pull button installation mechanism, including

[0005] A housing with strip-shaped holes on its surface, wherein the strip-shaped holes have wide holes with dimensions larger than the width of the strip-shaped holes; and

[0006] A push-pull key can be inserted into a strip hole and slide back and forth along the length of the strip hole. The part that can be inserted into the strip hole also has a column that can be inserted into a wide hole but cannot be pulled out of the strip hole.

[0007] As a further optimization of this utility model, the part of the push-pull key that inserts into the strip hole is a long strip-shaped slider.

[0008] As a further optimization of this utility model, it also includes a sliding part disposed inside the housing and having an insertion hole facing the strip hole; the column is inserted into the insertion hole.

[0009] As a further optimization of this utility model, the column and the socket are interference-fitted.

[0010] As a further optimization of this utility model, two wide holes are provided; the column body is also provided with two lengths corresponding to the wide holes, wherein the long column body is inserted into the insertion hole.

[0011] As a further optimization of this utility model, the shell is made of plastic material; the size of the column is slightly larger than the wide hole.

[0012] As a further optimization of this utility model, the upper surface of the push-pull button is provided with anti-slip texture.

[0013] As a further optimization of this utility model, the bottom surface of the push-pull button is fitted to the shell.

[0014] As a further optimization of this utility model, the bottom surface of the push-pull button is provided with a raised edge.

[0015] As a further optimization of this utility model, the wide hole is located at the position of the column when the push-pull key is stopped in the middle of the strip hole.

[0016] The present invention provides a push-pull button installation mechanism that allows for free replacement of push-pull buttons without disassembling the housing. The installed push-pull buttons can smoothly perform the push-pull function and are not easy to fall off. Attached Figure Description

[0017] Figure 1 This is the assembly drawing of this embodiment;

[0018] Figure 2 yes Figure 1 Cross-sectional diagram;

[0019] Figure 3 yes Figure 1 A diagram showing the slide buttons with the slider buttons hidden.

[0020] Figure 4 This is a schematic diagram of the interior of the casing;

[0021] Figure 5 This is a diagram of the push-pull button;

[0022] The components include: housing 1, strip hole 1a, wide hole 1b, sliding part 2, insertion hole 2a, push-pull key 3, slider 3a, and column 3b. Detailed Implementation

[0023] like Figure 1-5 As shown, this embodiment includes a housing 1 and a push-pull button 3.

[0024] The surface of the housing 1 is provided with a strip-shaped hole 1a, and a wide hole 1b with a size larger than the width of the strip-shaped hole 1a is provided on the strip-shaped hole 1a. Specifically, the wide hole 1b is a round hole. In other embodiments, the wide hole 1b can also be a square, star-shaped or other shapes of hole.

[0025] The push-pull button 3 is used to push and pull when pressed with a finger. A part of the push-pull button 3 can be inserted into the strip hole 1a and slide back and forth along the length of the strip hole 1a. In this embodiment, this part is set as a long strip corresponding to the shape of the strip hole 1a, and is called slider 3a. Of course, in other embodiments, slider 3a can also be set as a single or several linearly arranged columns, depending on the specific situation.

[0026] In this embodiment, a column 3b is also provided on the end face of the slider 3a. The size of the column 3b corresponds to the wide hole 1b, so that the column 3b can pass through the wide hole 1b and through the strip hole 1a. The cross-sectional size of the column 3b must be larger than the width of the strip hole 1a, so as to ensure that the push-pull key 3 will not fall off the strip hole 1a during the push-pull process.

[0027] In this embodiment, the shell 1 is made of plastic material and has a certain deformation recovery capability. Therefore, the cross-sectional size of the column 3b can be designed to be slightly larger than the wide hole 1b, which further strengthens the restriction that the push-pull key 3 will fall off the strip hole 1a.

[0028] In this embodiment, a sliding part 2 is provided inside the housing 1, which needs to be pushed to slide back and forth along the length direction of the strip hole 1a. An insertion hole 2a is provided on the part of the sliding part 2 facing the strip hole 1a. The column 3b is inserted into the insertion hole 2a after being inserted into the wide hole 1b. Furthermore, the column 3b and the insertion hole 2a are interference-fitted. The fit between the column 3b and the insertion hole 2a not only drives the sliding part 2 to slide, but also further prevents the push-pull key 3 from falling out of the strip hole 1a.

[0029] In this embodiment, two wide holes 1b are provided, and corresponding to the wide holes 1b, one long and one short column 3b are also provided. The long column 3b is inserted into the insertion hole 2a, and the length of the short column 3b must be ensured to avoid contact with the sliding part 2 to prevent interference. At the same time, the long and short columns can be used to distinguish the installation direction of the push-pull key 3. After setting two columns 3b, the front-back direction of the two columns 3b can be adjusted at any time according to the position of the sliding part 2 or the stroke requirements of the sliding part 2, so as to have a certain adjustment and regulation function. In addition, when inserted into the wide holes 1b, two columns 3b have higher strength than a single column 3b and are less prone to breakage.

[0030] Preferably, in this embodiment, the surface of the push-pull button 3 is provided with anti-slip texture to facilitate anti-slip operation.

[0031] Preferably, in this embodiment, the push-pull button 3 is designed with its bottom surface conforming to the shape of the housing 1 to avoid excessive gap between the push-pull button 3 and the housing 1, which would cause wobbling and affect the feel. Furthermore, the bottom surface of the push-pull button 3 is provided with a raised edge, which is preferably located directly above the strip hole 1a, so as to facilitate disassembly by pressing down on the bottom surface of the push-pull button 3 along the strip hole 1a.

[0032] During use, the push-pull key 3 stays at the two ends of the strip hole 1a the most, which is the limit of the push-pull key 3's stroke. Therefore, in this embodiment, the wide hole 1b is set at the position corresponding to the column 3b when the push-pull key 3 stays in the middle of the strip hole 1a. Because it is not at the limit position, it is difficult to make the column 3b correspond exactly to the wide hole 1b, which can greatly reduce the probability of the push-pull key 3 falling off the strip hole 1a.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A push-pull key mounting mechanism, characterized in that, include A housing with strip-shaped holes on its surface, wherein the strip-shaped holes have wide holes with dimensions larger than the width of the strip-shaped holes; and A push-pull key can be inserted into a strip hole and slide back and forth along the length of the strip hole. The part that can be inserted into the strip hole also has a column that can be inserted into a wide hole but cannot be pulled out of the strip hole.

2. The push-pull key installation mechanism according to claim 1, characterized in that, The part of the push-pull button that inserts into the strip hole is a long, narrow slider.

3. The push-pull key installation mechanism according to claim 1, characterized in that, It also includes a sliding part located inside the housing and having an insertion hole facing the strip hole; the column is inserted into the insertion hole.

4. The push-pull key installation mechanism according to claim 3, characterized in that, The column and the socket are interference-fitted.

5. The push-pull key installation mechanism according to claim 3, characterized in that, There are two wide holes; the corresponding column is also provided with two lengths, with the long column inserted into the hole.

6. The push-pull key installation mechanism according to claim 1, characterized in that, The shell is made of plastic material; the dimensions of the column are slightly larger than the wide hole.

7. The push-pull key installation mechanism according to claim 1, characterized in that, The upper surface of the push-pull button has anti-slip texture.

8. The push-pull key installation mechanism according to claim 1, characterized in that, The bottom surface of the push-pull button fits into the housing.

9. A push-pull key mounting mechanism according to claim 8, characterized in that, The bottom surface of the push-pull button has a raised edge.

10. A push-pull key mounting mechanism according to claim 1, characterized in that, The wide hole is located at the position of the column when the push-pull key is stopped in the middle of the strip hole.

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