Stopwatch key protection structure and stopwatch

Abstract

The utility model belongs to the technical field of bicycle stopwatches, and provides a stopwatch key protection structure and a stopwatch. The key device comprises a panel and a trigger switch, a positioning hole is formed in the panel, and the trigger switch is located in the positioning hole; and the outer diameter of the gasket is greater than the diameter of the positioning hole. According to the stopwatch key protection structure, the outer side of the shaft is sleeved with the gasket, when the key cap is pressed, the shaft can drive the gasket to move synchronously, the outer diameter of the gasket is larger than the diameter of the positioning hole, so that the gasket cannot enter the positioning hole, the gasket can be limited, the shaft is limited, the shaft is prevented from further moving, and the situation that the key cap is damaged due to excessive force is avoided. And the key device is prevented from being damaged. And secondly, the outer side of the guide column is sleeved with the limiting boss, the limiting effect on the key cap is achieved, the key cap can be prevented from moving too much, and the double-guarantee effect can be achieved when the key cap is matched with the gasket.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of bicycle odometer, specifically relates to a kind of odometer key protection structure and odometer. BACKGROUND

[0002] Bicycle odometer is a kind of electronic product installed on bicycle, mainly used to record and display various data in the process of riding, such as speed, mileage, time, etc. It captures the information of magnet through inductor, and transmits to odometer through sensing line, and displays corresponding data after processing.

[0003] Bicycle odometer usually has two keys: right key and left key. Right key is used to switch different display information, and left key is used to confirm options or enter setting menu.

[0004] The existing odometer key is realized by pressing key cap, specifically, when pressing key cap, the shaft inside it will move synchronously, and then press the key device. Since the shaft of key cap is usually thin, if too much force is used when pressing key cap or key cap is impacted when odometer falls, the pressure generated by shaft on key device is large, which can easily damage key device. TECHNICAL CONTENT

[0005] In view of the deficiencies in the prior art, the utility model provides an odometer key protection structure and odometer, which can solve the above problems.

[0006] To achieve the above purpose, the utility model adopts the following technical scheme: an odometer key protection structure, comprising key device, shaft;

[0007] The key device comprises panel and trigger switch, the panel is provided with positioning hole, and the trigger switch is located in the positioning hole.

[0008] The shaft is provided with gasket outside, and the outer diameter of gasket is larger than the diameter of positioning hole.

[0009] As preferred, the protection structure further comprises key cap and shell.

[0010] The key device is located in the inner cavity of shell, the surface of shell is provided with containing hole, the inner cavity of shell and containing hole are communicated through communication hole, the key cap is located in containing hole, the shaft is fixed with key cap, and the end of shaft away from key cap penetrates through communication hole and extends to the inner cavity of shell.

[0011] As preferred, the shaft is provided with snap spring outside, the snap spring is located in the inner cavity of shell, and the outer diameter of snap spring is larger than the diameter of communication hole.

[0012] As preferred, the shaft is provided with annular groove coaxially on the side wall, and the snap spring is sleeved in the annular groove.

[0013] Preferably, the gasket is arranged on the side of the snap spring away from the key cap.

[0014] Preferably, the gasket is adhered to the snap spring by a back adhesive.

[0015] Preferably, the accommodating hole is provided with a guide post, and the key cap is provided with a guide groove matched with the guide post.

[0016] Preferably, the guide post is externally sleeved with a limiting boss.

[0017] Preferably, the guide groove is provided with a limiting surface at the entrance.

[0018] A code table comprises the code table key protection structure.

[0019] Compared with the prior art, the code table key protection structure has the following beneficial effects:

[0020] 1. The code table key protection structure can prevent the shaft from further moving and avoid the damage of the key device caused by excessive force.

[0021] 2. The code table key protection structure can prevent the key cap from moving too much. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0023] Figure 1 A front view structural schematic diagram of the code table key protection structure provided by the embodiments of the present application;

[0024] Figure 2 A cross-sectional structural schematic diagram of the code table key protection structure provided by the embodiments of the present application;

[0025] Figure 3 An exploded structural schematic diagram of the code table key protection structure provided by the embodiments of the present application;

[0026] Figure 4The utility model provides a kind of code table key protection structure's shaft and its related part's stereoscopic structure schematic diagram provided for the embodiment of the utility model.

[0027] In the drawing, the component list represented by each mark is as follows:

[0028] 1, PCB;

[0029] 2, key device;201, panel;202, trigger switch;203, positioning hole;

[0030] 3, gasket;

[0031] 4, back glue;

[0032] 5, clasp spring;

[0033] 6, shaft;

[0034] 7, key cap;

[0035] 8, guide pillar;

[0036] 9, limiting boss;

[0037] 10, guide groove;

[0038] 11, limiting surface;

[0039] 12, shell;

[0040] 13, communication hole;

[0041] 14, accommodating hole. DETAILED DESCRIPTION

[0042] In order to make the technical scheme and advantages in the embodiment of the application more clear and obvious, the exemplary embodiments of the application are further described in detail below in combination with the drawings, obviously, the described embodiments are only a part of the embodiments of the application, not all the embodiments of the exhaustive. It should be noted that, in the case of no conflict, the embodiments in the application and the features in the embodiments can be combined with each other.

[0043] The embodiment provides a kind of code table key protection structure, including key device 2, shaft 6;

[0044] Key device 2 includes panel 201, trigger switch 202, positioning hole 203 is set on panel 201, trigger switch 202 is located in positioning hole 203.

[0045] For example, refer to Figures 1-2PCB1 and the key device 2 are both installed in the inner cavity of the shell 12, and the PCB1 is located at the left side of the key device 2. The key device 2 comprises a panel 201 and a trigger switch 202, and the panel 201 is provided with a positioning hole 203, and the trigger switch 202 protrudes to the right side of the panel 201 through the positioning hole 203. By pressing the trigger switch 202 to the left, an electric signal can be generated.

[0046] The shaft 6 is sleeved with a gasket 3 outside, and the outer diameter of the gasket 3 is greater than the diameter of the positioning hole 203.

[0047] For example, referring to Figure 3 The right surface of the shell 12 is provided with a containing hole 14, and the inner cavity of the shell 12 is communicated with the containing hole 14 through a communication hole 13. Referring to Figure 2 The key cap 7 is located in the containing hole 14, the right end of the shaft 6 is fixed with the key cap 7, the left end of the shaft 6 penetrates through the communication hole 13 and extends to the inner cavity of the shell 12, and the left end of the shaft 6 is aligned with the trigger switch 202. The gasket 3 is annular structure, and the gasket 3 is fixedly sleeved on the left end of the shaft 6. At this time, by pressing the key cap 7 to the left, the shaft 6 and the gasket 3 can be driven to move to the left, and the left end of the shaft 6 can press the trigger switch 202.

[0048] Based on the above structure, the code table key protection structure provided by the embodiment can drive the gasket 3 to move synchronously by sleeving the gasket 3 outside the shaft 6 when the key cap 7 is pressed. Since the outer diameter of the gasket 3 is greater than the diameter of the positioning hole 203, the gasket 3 cannot enter the positioning hole 203, which can limit the gasket 3 and further limit the shaft 6, prevent the shaft 6 from moving further, and avoid the situation that the key device 2 is damaged due to excessive force.

[0049] The key device 2 is a prior art and has a rebound function. That is, after the trigger switch 202 is pressed, it can automatically rebound to the initial position. Meanwhile, a return spring can be sleeved outside the shaft 6, the right end of the return spring abuts against the key cap 7, and the left end of the return spring abuts against the surrounding sidewall of the right end of the communication hole 13. When the key cap 7 moves to the left, the return spring is compressed, and after losing external force, the return spring restores, and the key cap 7 returns to the initial position.

[0050] On the basis of the above technical scheme, in the technical scheme provided by the embodiment, the shaft 6 is sleeved with a snap spring 5 outside, and the snap spring 5 is located in the inner cavity of the shell 12, and the outer diameter of the snap spring 5 is greater than the diameter of the communication hole 13.

[0051] For example, referring to Figures 2-4 The shaft 6 is sleeved with a snap spring 5 outside, and the snap spring 5 is located at the left side of the communication hole 13, and the outer diameter of the snap spring 5 is greater than the diameter of the communication hole 13. In this way, the communication hole 13 can limit the snap spring 5, and further limit the shaft 6, prevent the shaft 6 from moving to the right to be separated from the communication hole 13, and cause the key cap 7 to be separated from the containing hole 14.

[0052] The inner embedded annular groove can be coaxially arranged on the side wall of the shaft 6, and the snap spring 5 is sleeved in the annular groove.

[0053] For example, referring to Figure 2 The inner diameter of the snap spring 5 is smaller than the outer diameter of the shaft 6, so that the annular groove can limit the snap spring 5, and the snap spring 5 cannot be separated from the annular groove, that is, the snap spring 5 cannot be separated from the shaft 6.

[0054] The gasket 3 is arranged on the side of the snap spring 5 away from the key cap 7.

[0055] Further, the gasket 3 is pasted on the snap spring 5 by the back adhesive 4.

[0056] For example, referring to Figures 3-4 The gasket 3 can be a metal gasket. The gasket 3 is pasted on the left side of the snap spring 5 by the back adhesive 4. Not only the structure is stable and firm, but also the operation is more convenient by using the pasting fixing mode.

[0057] In the technical scheme provided in the embodiment, the receiving hole 14 is provided with a guide column 8, and the key cap 7 is provided with a guide groove 10 matched with the guide column 8.

[0058] For example, referring to Figures 2-3 Two guide columns 8 are arranged on the inner wall of the receiving hole 14, and the guide column 8, the shaft 6 and the communication hole 13 are parallel. Two guide grooves 10 are arranged on the left side wall of the key cap 7, the two guide grooves 10 correspond to the two guide columns 8 one by one, the guide column 8 is embedded in the corresponding guide groove 10, and the guide column 8 and the corresponding guide groove 10 are in sliding fit. In this way, when the key cap 7 is pressed to the left, the guide column 8 can play a guiding role, so that the key cap 7 can stably slide left and right, and the stable pressing of the trigger switch 202 can be ensured.

[0059] The guide column 8 is sleeved with a limiting boss 9 on the outer side.

[0060] The limiting boss 9 can play a limiting role to prevent the key cap 7 from moving too much to the left. In cooperation with the gasket 3, a double protection effect can be achieved to prevent the key device 2 from being damaged due to excessive force.

[0061] Further, a limiting face 11 is arranged at the entrance of the guide groove 10.

[0062] For example, referring to Figure 2 、 Figure 4 The limiting face 11 is arranged at the left end entrance of the guide groove 10. The limiting face 11 is similar to a chamfer structure. When the key cap 7 moves to the left, the limiting face 11 can first contact the guide column 8. At this time, the limiting face 11 can play a guiding role, which is conducive to the rapid entry of the guide column 8 into the guide groove 10, and avoids the resistance between the guide column 8 and the key cap 7. The installation efficiency can be improved, and the stability of the left and right sliding of the key cap 7 can be ensured.

[0063] The embodiment also provides a code table comprising the code table key protection structure.

[0064] In the description of the present application, it needs to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation to the present application.

[0065] In addition, the terms "first", "second" are only for descriptive purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise explicitly and specifically limited.

[0066] Although the preferred embodiments of the present application have been described, those skilled in the art can make further changes and modifications to these embodiments once they know the basic inventive concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application.

[0067] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application also intends to include these modifications and variations.

Claims

1. A code table key protection structure, characterized by, The key device (2) comprises a panel (201) and a trigger switch (202), the panel (201) is provided with a positioning hole (203), and the trigger switch (202) is located in the positioning hole (203). The shaft (6) is provided outside with a gasket (3), and the outer diameter of the gasket (3) is larger than the diameter of the positioning hole (203). The protective structure further comprises a shell (12) and a key cap (7).

2. The code table key protection structure according to claim 1, wherein, The key device (2) is located in the inner cavity of the shell (12), the surface of the shell (12) is provided with a containing hole (14), the inner cavity of the shell (12) and the containing hole (14) are communicated through a communication hole (13), the key cap (7) is located in the containing hole (14), the shaft (6) is fixed with the key cap (7), and the shaft (6) penetrates through the communication hole (13) and extends into the inner cavity of the shell (12) at the end away from the key cap (7). The shaft (6) is provided outside with a clamping spring (5), and the clamping spring (5) is located in the inner cavity of the shell (12), and the outer diameter of the clamping spring (5) is larger than the diameter of the communication hole (13).

3. A code table key protection structure according to claim 2, wherein The shaft (6) is provided with an annular groove coaxially on the side wall, and the clamping spring (5) is sleeved in the annular groove.

4. The code table key protection structure according to claim 3, wherein, The gasket (3) is located on the side away from the key cap (7) of the clamping spring (5).

5. The code table key protection structure according to claim 3, wherein, The gasket (3) is adhered to the clamping spring (5) through the back adhesive (4).

6. A code key guard structure according to claim 5, wherein The containing hole (14) is provided with a guide column (8), and the key cap (7) is provided with a guide groove (10) matched with the guide column (8).

7. The code table key guard structure according to claim 2, wherein The guide column (8) is provided outside with a limiting boss (9).

8. A code table key protection structure according to claim 7, wherein The guide groove (10) is provided at the entrance with a limiting surface (11).

9. The code table key guard structure according to claim 7, wherein, The code table key protection structure comprises the code table key protection structure according to any one of claims 1-9.

10. A code table, characterized by The code table key protection structure comprises the code table key protection structure according to any one of claims 1-9.

Images