Timer with over-screwing prevention function

Abstract

The utility model discloses a timer with an over-screwing prevention function. The timer comprises a shell 1, the movement 3 is arranged on the shell 1; the timing assembly 2 is connected with the movement 3, and the timing duration can be formulated by rotating the timing assembly 2; the first rotation limiting part 11 is connected with the shell 1; the second rotation limiting part 21 is connected with the timing assembly 2 and rotates along with the timing assembly 2; the first rotation limiting part 11 is located on the rotation stroke of the second rotation limiting part 21, and the first rotation limiting part 11 and the second rotation limiting part 21 are matched to limit excessive twisting of the timing assembly 2. According to the timer with the over-screwing prevention function, the limiting mechanism is arranged between the shell and the timing assembly, the first rotation limiting part of the limiting mechanism is connected with the shell, the second rotation limiting part rotates along with the timing assembly, and the first rotation limiting part and the second rotation limiting part are matched in a limiting mode, so that the over-screwing prevention purpose is achieved.

Description

Technical Field

[0001] The utility model relates to the field of timing tools, in particular to a timer with an anti-over-twist function. Background Art

[0002] A timer is a timing tool. Its most common application is timing determination or training to complete a certain event or task within a certain time limit.

[0003] Current timers on the market, whether counting up or counting down, typically use a knob to drive the setting of the built-in movement to determine the desired timing duration. However, when turning the knob, it is often easy to operate too hard, resulting in damage to the knob or the movement.

[0004] Therefore, it is necessary to provide a timer with an anti-over-twist function. Summary of the Invention

[0005] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions:

[0006] A timer with an anti-overtightening function includes a housing 1; a movement 3 mounted on the housing 1; a timing assembly 2 connected to the movement 3 and at least partially exposed outside the housing 1, and the timing assembly 2 can be rotated to set the timing duration; the timer also includes a first rotation limiting portion 11 connected to the housing 1; a second rotation limiting portion 21 connected to the timing assembly 2 and rotates with the timing assembly 2; the first rotation limiting portion 11 is located on the rotation stroke of the second rotation limiting portion 21, and the two cooperate to limit the timing assembly 2 from being overtightened.

[0007] Furthermore, the device further includes a rotation compensation mechanism 4; the rotation compensation mechanism 4 is connected to the housing 1, and the first rotation limiting portion 11 is connected to the rotation compensation mechanism 4. Alternatively, in some other embodiments, the rotation compensation mechanism 4 is connected to the timing assembly 2, and the second rotation limiting portion 21 is connected to the rotation compensation mechanism 4; the rotation compensation mechanism 4 is adapted to allow the first rotation limiting portion 11 or the second rotation limiting portion 21 to have a certain range of travel, thereby allowing the timing assembly 2 to rotate at an angular travel greater than or equal to a specific angle.

[0008] Furthermore, the rotation compensation mechanism 4 includes a movably disposed movable member 41; the first rotation limiting portion 11 or the second rotation limiting portion 21 is connected to the movable member 41; one end of the movable member 41 is rotatably connected to the housing 1 or the timing assembly 2, and the first rotation limiting portion 11 or the second rotation limiting portion 21 swings along with the other end of the movable member 41. Alternatively, in other embodiments, the movable member 41 is slidably connected to the housing 1 or the timing assembly 2, and the first rotation limiting portion 11 or the second rotation limiting portion 21 slides along with the movable member 41.

[0009] Furthermore, a movable hole 13 is provided in the housing 1 ; the movable member 41 is connected to the housing 1 ; one end of the first rotation-limiting portion 11 is connected to the movable member 41 , and the other end passes through the movable hole 13 .

[0010] Furthermore, the rotation compensation mechanism 4 further includes a set of third rotation limiting parts 42 located on both sides of the movable member 41 and suitable for limiting the stroke of the movable member 41 .

[0011] Furthermore, the third rotation-limiting portion 42 is a stopper connected to the housing 1 or the timing assembly 2 and disposed corresponding to the movable member 41. In other embodiments, outer protrusions are disposed on both sides of the movable member 41 to mate with the third rotation-limiting portion 42; the third rotation-limiting portion 42 is disposed on a raised or curved inner wall of the housing 1, or on a raised or curved skirt of the timing assembly 2.

[0012] Furthermore, the movable stroke of the movable member 41 is adapted to the width of the first rotation limiting portion 11 .

[0013] Furthermore, the timing assembly 2 has a skirt 22 extending toward the housing 1 ; the second rotation limiting portion 21 is provided at one end of the skirt 22 close to the housing 1 .

[0014] Furthermore, an avoidance groove 12 is provided in the housing 1 ; at least a portion of the skirt is received in the avoidance groove 12 .

[0015] The utility model discloses a timer with an anti-over-tightening function. A limiting mechanism is provided between a housing and a timing component. The first rotation limiting part of the limiting mechanism is connected to the housing, and the second rotation limiting part rotates along with the timing component. The first rotation limiting part and the second rotation limiting part cooperate in limiting and preventing over-tightening. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 This is a structural schematic diagram of a timer with an anti-over-twist function disclosed in an embodiment of the utility model.

[0018] Figure 2 This is a structural diagram of the components of the timer in this solution except the timing component.

[0019] Figure 3It is a schematic diagram of the assembly structure of the compensation mechanism and the shell.

[0020] Figure 4 It is a schematic diagram of the cross-sectional structure of the timing component, compensation mechanism and housing.

[0021] Figure 5 Schematic diagram of the assembly structure of the timing component and the housing

[0022] Figure 6 for Figure 1 Schematic diagram of the exploded structure of the structure.

[0023] Description of reference numerals:

[0024] 1. Housing; 11. First rotation limiting portion; 12. Avoidance groove; 13. Movable hole;

[0025] 2. Timing assembly; 21. Second rotation limiting portion; 22. Skirt;

[0026] 3. Movement;

[0027] 4. Rotation compensation mechanism; 41. Movable part; 42. Third rotation limiting part. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the present invention more clear, the technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments and drawings. It should be noted that the embodiments described below in conjunction with the reference drawings are exemplary and are intended to be used to explain the present invention, and should not be understood as limiting the present invention.

[0029] For example, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include at least one such feature; "plurality" means at least two, for example, two, three, etc., unless otherwise specifically specified.

[0030] Terms such as "installed", "connected", "connected", "fixed" etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined.

[0031] For example, the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like indicate positions or location relationships based on the positions or location relationships shown in the accompanying drawings, and are intended only to facilitate description of the technical solutions of the present invention, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed, or operate in a specific orientation. For example, when a first feature is "up" or "down" a second feature, it means that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium; when a first feature is "above," "above," or "above" a second feature, it means that the first feature is directly above or obliquely above the second feature, or simply indicates that the first feature is at a higher level than the second feature; when a first feature is "below," "below," or "below" a second feature, it means that the first feature is directly below or obliquely below the second feature, or simply indicates that the first feature is at a lower level than the second feature.

[0032] Example

[0033] like Figure 1-5 As shown, a preferred embodiment of a timer with an anti-over-tightening function provided by the present invention includes a housing 1; a movement 3, installed in the housing 1; a timing assembly 2, connected to the movement 3 and at least partially exposed outside the housing 1, and the timing assembly 2 can be rotated to set the timing duration; it also includes a limiting mechanism; the limiting mechanism includes a first rotation limiting part 11, connected to the housing 1; a second rotation limiting part 21, connected to the timing assembly 2, and rotates with the timing assembly 2; the first rotation limiting part 11 is located on the rotation stroke of the second rotation limiting part 21, and the two are used together to limit the timing assembly 2 from being over-tightened, thereby avoiding violent damage to the movement 3 or the timing assembly 2 and extending the service life of the product.

[0034] Specifically, the limiting cooperation of the first rotation limiting part 11 and the second rotation limiting part 21 can adopt a combination of protrusions and protrusions. For example, the first rotation limiting part 11 is a protrusion, which is arranged on the shell 1 and is located on the outer wall of the shell 1 on the side close to the timing component 2. The second rotation limiting part 21 is also a protrusion, which is arranged on the timing component 2 and is located on the side close to the shell 1. The second rotation limiting part 21 rotates as the timing component 2 rotates, and the rotation trajectory is circular. The first rotation limiting part 11 is located on the circular trajectory. When the second rotation limiting part 21 rotates from one side of the first rotation limiting part 11 to the other side, the first rotation limiting part 11 will block the second rotation limiting part 21 from continuing to rotate, thereby limiting the timing component 2 from continuing to rotate, thereby achieving the purpose of preventing over-tightening. The limiting cooperation of the first limiting part 11 and the second limiting part 21 can also be a combination of the end of the slide groove and the slider. For example, a circular or nearly circular slide groove is provided on the outer wall of the shell 1 on the side of the shell 1 close to the timing component 2. The head and end of the slide groove are only passed through in one direction. The first limiting part 11 is the head and end of the slide groove, and the second limiting part 21 is a slider that can slide in the slide groove. When the second limiting part 21 rotates with the timing component 2 and slides to the end of the slide groove, the slider is limited by the end of the slide groove and cannot continue to rotate, thereby limiting the continued rotation of the timing component 2.

[0035] The movement 3 has a rotating shaft that can be used to adjust the time. The timing component 2 passes through the housing 1 and is connected to the rotating shaft, or the rotating shaft extends out of the housing 1 and is connected to the timing component 2. The movement 3 can be a mechanical movement 3 or an electronic movement 3. The angle sensing unit identifies the angle rotated by the rotating shaft and matches the corresponding duration. The timing method can be countdown or countup. As long as the movement 3 can have the rotating shaft timing function, it can be any other solution. There are many mature solutions in this field, which will not be described here.

[0036] Furthermore, it also includes a rotation compensation mechanism 4, which is used to enable the timing component 2 to rotate 360 ​​degrees relative to the housing 1, compensating for the space occupied by the first rotation limit part 11 and the second rotation limit part 21, so that the timing component 2 cannot rotate 360 ​​degrees relative to the housing 1, so that the operation of rotating the customized time length cannot perfectly match 60 minutes or 12 hours, etc.

[0037] Specifically, the rotation compensation mechanism 4 is connected to the housing 1, and the first rotation limiting part 11 is connected to the rotation compensation mechanism 4; or the rotation compensation mechanism 4 is connected to the timing assembly 2, and the second rotation limiting part 21 is connected to the rotation compensation mechanism 4; the rotation compensation mechanism 4 is suitable for making the first rotation limiting part 11 or the second rotation limiting part 21 have a certain range of active stroke, so that the angular stroke of the timing assembly 2 is greater than or equal to a specific angle, for example, equal to 360 degrees.

[0038] The rotation compensation mechanism 4 includes a movable part 41 that is movably arranged; the first rotation limiting part 11 or the second rotation limiting part 21 is connected to the movable part 41. For example, when the rotation compensation mechanism 4 is connected to the housing 1, the first rotation limiting part 11 is connected to the movable part 41; for example, when the rotation compensation mechanism 4 is connected to the timing assembly 2, the second rotation limiting part 21 is connected to the movable part 41.

[0039] One end of the movable member 41 is rotatably connected to the housing 1 or the timing assembly 2 , and the first rotation-limiting portion 11 or the second rotation-limiting portion 21 swings following the other end of the movable member 41 .

[0040] In this embodiment, the movable member 41 is rotatably connected to the housing 1, and the first rotation-limiting portion 11 is fixedly disposed on the movable member 41 and can swing along with the rotation of the movable member 41. Alternatively, in other embodiments, the movable member 41 is slidably connected to the housing 1 or the timing assembly 2, and the first rotation-limiting portion 11 or the second rotation-limiting portion 21 slides along with the movable member 41. For example, the movable member 41 is slidably disposed on the timing assembly 2, and the second rotation-limiting portion 21 is fixed to the movable member 41 and can slide along with the sliding of the movable member 41.

[0041] The movable stroke of the movable part 41 is adapted to the width of the first rotation limiting part 11, that is, the width of the circular movable trajectory occupied by the first rotation limiting part 11 of the second rotation limiting part 21 is adapted. In this embodiment, it is preferably the same as the width of the first rotation limiting part 11, so that the timing assembly 2 can rotate a full 360 degrees.

[0042] Furthermore, a movable hole 13 is provided in the housing 1; the movable part 41 is connected to the interior of the housing 1, optimizing the product structure, making it more compact and having better structural stability; one end of the first rotation limiting part 11 is connected to the movable part 41, and the other end passes through the movable hole 13, and can move in the movable hole 13, at the end of the stroke of the timing component 2, interfering with the rotation of the second rotation limiting part 21.

[0043] Furthermore, the rotation compensation mechanism 4 further includes a set of third rotation limiting parts 42 , which are located on both sides of the movable member 41 and are suitable for limiting the stroke of the movable member 41 .

[0044] In this embodiment, the third rotation limiting portion 42 is a pair of limiting platforms fixedly connected to the housing 1 and arranged corresponding to the movable member 41 , and respectively located at the beginning and end of the rotation stroke of the movable member 41 .

[0045] In some other embodiments, the movable member 41 is slidably arranged, and the third rotation limiting portion 42 is located at both ends of the sliding stroke of the movable member 41 .

[0046] In some other embodiments, outer protrusions cooperating with the third rotation limiting portion 42 are respectively provided on both sides of the movable part 41. If the rotation compensation mechanism 4 is provided in the shell 1, the third rotation limiting portion 42 is provided on the raised inner wall or the curved inner wall of the shell 1; if the rotation compensation mechanism 4 is provided in the timing assembly 2, the third rotation limiting portion 42 is provided on the raised or curved skirt of the timing assembly 2.

[0047] In this embodiment, the movable member 41 is preferably fan-shaped, the fan handle end is rotatably connected to the housing 1, and the first rotation limiting portion 11 is fixed to the fan leaf end so that it can swing along with the rotation of the movable member 41.

[0048] In this embodiment, preferably, the timing assembly 2 is a knob-shaped structure; the timing assembly 2 has a skirt 22 extending toward the housing 1, and the outer wall of the skirt 22 has a plurality of patterns for increasing friction; the second rotation limiting portion 21 is provided at one end of the skirt 22 close to the housing 1.

[0049] Housing 1 is provided with a relief groove 12; skirt 22 is at least partially received within relief groove 12. The combination of relief groove 12 and skirt 22 further limits the rotational trajectory of timing assembly 2, reducing the risk of damage from shaking during rotation. Furthermore, it optimizes the product's spatial structure, making it more compact and aesthetically pleasing. A movable hole 13 is located at the bottom of relief groove 12.

[0050] The utility model discloses a timer with an anti-over-tightening function. A limiting mechanism is provided between a housing and a timing component. The first rotation limiting part of the limiting mechanism is connected to the housing, and the second rotation limiting part rotates along with the timing component. The first rotation limiting part and the second rotation limiting part cooperate in limiting and preventing over-tightening.

[0051] The above embodiments only represent a part of the implementation methods of the present invention. Any modifications, substitutions and improvements made by those skilled in the art without creative work without departing from the concept of the present invention shall fall within the scope of protection of the present invention.

Claims

1. A timer with an anti-over-twist function, comprising a housing (1); a movement (3) mounted on the housing (1); a timing assembly (2) connected to the movement (3) and at least partially exposed outside the housing (1); the timing assembly (2) being rotated to set the duration of the time; and characterized in that: It also includes a first rotation limiting portion (11) connected to the housing (1); A second rotation limiting portion (21) is connected to the timing component (2) and rotates along with the timing component (2); The first rotation-limiting portion (11) is located on the rotation stroke of the second rotation-limiting portion (21), and the two cooperate to limit the timing assembly (2) from being excessively rotated.

2. The timer with anti-over-twist function according to claim 1, characterized in that: Also includes a rotation compensation mechanism (4); The rotation compensation mechanism (4) is connected to the housing (1), and the first rotation limiting portion (11) is connected to the rotation compensation mechanism (4); or the rotation compensation mechanism (4) is connected to the timing assembly (2), and the second rotation limiting portion (21) is connected to the rotation compensation mechanism (4); The rotation compensation mechanism (4) is suitable for enabling the first rotation limiting part (11) or the second rotation limiting part (21) to have a certain range of movable stroke, thereby enabling the angular stroke of the timing component (2) to rotate greater than or equal to a specific angle.

3. The timer with anti-over-twist function according to claim 2, characterized in that: The rotation compensation mechanism (4) includes a movable member (41) that is movably arranged; The first rotation limiting portion (11) or the second rotation limiting portion (21) is connected to the movable part (41); One end of the movable part (41) is rotatably connected to the housing (1) or the timing assembly (2), and the first rotation-limiting part (11) or the second rotation-limiting part (21) swings following the other end of the movable part (41); or, the movable part (41) is slidably connected to the housing (1) or the timing assembly (2), and the first rotation-limiting part (11) or the second rotation-limiting part (21) slides following the movable part (41).

4. The timer with anti-over-twist function according to claim 3, characterized in that: A movable hole (13) is provided in the housing (1); The movable member (41) is connected to the housing (1); One end of the first rotation-limiting portion (11) is connected to the movable member (41), and the other end passes through the movable hole (13).

5. The timer with anti-over-twist function according to claim 3 or 4, characterized in that: The rotation compensation mechanism (4) further includes a set of third rotation limiting parts (42) located on both sides of the movable part (41) and suitable for limiting the stroke of the movable part (41).

6. The timer with anti-over-twist function according to claim 5, characterized in that: The third rotation limiting part (42) is a limiting platform connected to the housing (1) or the timing assembly (2) and arranged corresponding to the movable part (41).

7. The timer with anti-over-twist function according to claim 5, characterized in that: Outer convex portions cooperating with the third rotation-limiting portion (42) are respectively provided on both sides of the movable member (41); The third rotation limiting portion (42) is provided on a raised inner wall or an arcuate inner wall of the housing (1), or the third rotation limiting portion (42) is provided on a raised or arcuate skirt of the timing assembly (2).

8. The timer with anti-over-twist function according to any one of claims 3-4, 6-7, characterized in that: The movable stroke of the movable member (41) is adapted to the width of the first rotation-limiting portion (11).

9. The timer with anti-over-twist function according to any one of claims 1-4, 6, and 7, characterized in that: The timing assembly (2) is provided with a skirt (22) extending toward the housing (1); The second rotation limiting portion (21) is provided at one end of the skirt (22) close to the housing (1).

10. The timer with anti-over-twist function according to claim 9, characterized in that: The housing (1) is provided with an avoidance groove (12); At least a portion of the skirt is received in the avoidance groove (12).

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