A watch strap quick-release telescopic structure

Abstract

The present invention relates to a watch strap quick-release telescopic structure, comprising a housing, wherein one end of the housing is provided with a fixing pin along the length direction; a button slidably assembled in the housing, wherein a first elastic member is connected between the button and the housing; and a rod slidably assembled in the housing, wherein a second elastic member is connected between the rod and the housing; the rod and the button are slidably connected via an arc guide mechanism; in a default state, the rod extends out of the other end of the housing relative to the fixing pin in the length direction, and by pressing the button, the rod can be retracted into the housing, thereby unlocking the structure and the watch strap; the present invention is provided with an arc guide mechanism, and when the button is pressed, the guide column and the guide block will slide relative to each other, and the guide block will drive the rod to retract toward the housing, thereby unlocking the watch strap. Compared with the previous method of inclined sliding, this method can reduce the longitudinal key travel of the button, reduce the thickness of the telescopic structure, and adapt to the current trend of miniaturization of smart bracelets and smart watches.

Description

Technical Field

[0001] The present invention relates to the technical field of watch strap connectors, and in particular to a watch strap quick-release telescopic structure. Background Art

[0002] At present, the connection between the watch dial and the watch strap is usually achieved by a spring ear, such as the Chinese invention with publication number CN206006226U, entitled "A Spring Ear for Quickly Disassembling a Watch Strap and a Watch Having the Spring Ear". The spring ear comprises a sleeve with left and right ends opened, a button elastically inserted into the middle of the sleeve, and an ear rod elastically connected to the two ends of the sleeve. The button and the ear rod are in contact with each other through an inclined surface and a protrusion. By pressing the button downward, the inclined surface and the protrusion are offset, and the spring of the ear rod rebounds, causing the ear rod to move inward, loosening the watch strap; conversely, after releasing the button, the ear rod moves outward, thereby locking the watch strap.

[0003] The aforementioned solution uses an inclined surface to slide between the key and the ear stem, which occupies a considerable amount of longitudinal space. This means that the key travel distance must be sufficient to allow the ear stem to fully retract into the sleeve, resulting in an excessively thick overall structure. Furthermore, to maintain the stability of the sliding engagement, the existing solution requires an ear stem on each side of the key. The mutual movement of the two ear stems ensures balance and stability during unlocking and locking, which results in an excessively long overall structure, making it unsuitable for the current trend toward miniaturization in smart bracelets and smart watches. Therefore, improvements are needed. Summary of the Invention

[0004] Based on this, the present invention provides a watch strap quick-release and telescopic structure.

[0005] In order to achieve the purpose of the present invention, the present invention adopts the following technical solutions:

[0006] A watch strap quick-release telescopic structure, comprising:

[0007] A housing, wherein a fixing pin is provided at one end of the housing along the length direction;

[0008] a button slidably assembled in the housing, wherein a first elastic member is connected between the button and the housing;

[0009] And a rod body slidably assembled in the shell, a second elastic member is connected between the rod body and the shell; the rod body and the button are slidably connected via an arc guide mechanism; in a default state, the rod body extends out from the other end of the shell relative to the fixing pin in the length direction, and by pressing the button, the rod body can be retracted into the shell, thereby unlocking this structure and the watch strap.

[0010] Furthermore, the housing includes a first shell and a second shell; the first shell and the second shell are matched and connected.

[0011] Furthermore, a sliding through hole and a sliding through groove are provided in the shell; the sliding through hole is located at the other end of the shell relative to the fixing pin in the length direction, so as to allow the rod body to be slidably assembled; the axis of the sliding through groove is perpendicularly staggered with the axis of the sliding through hole, so as to allow the button to be slidably assembled.

[0012] Furthermore, a first connecting groove is provided in the shell; a second connecting groove is provided in the button; the positions of the first connecting groove correspond to those of the second connecting groove; one end of the first elastic member is connected to the first connecting groove, and the other end is connected to the second connecting groove.

[0013] Furthermore, a third connecting groove is provided in the shell; a blocking piece is provided on the rod body; the blocking piece is located in the third connecting groove; one end of the second elastic member is connected to the third connecting groove, and the other end is connected to the blocking piece.

[0014] Furthermore, the circular arc guide mechanism includes a guide column and a guide block; a circular arc groove is provided in the guide block; and the guide column is slidably connected to the circular arc groove.

[0015] Furthermore, a connecting seat is provided on the button; one end of the guide column is connected to the connecting seat, and the other end extends into the circular arc groove.

[0016] Furthermore, the guide block is fixedly arranged on the rod body.

[0017] Furthermore, a limiting groove is provided in the housing for limiting the sliding of the guide block; and an avoidance groove is provided on the button at a position corresponding to the limiting groove for avoiding the guide block.

[0018] Furthermore, a balance bar is provided at one end of the guide block away from the rod body; a balance groove is provided in the shell; and the balance groove is fitted with the balance bar.

[0019] The beneficial effects of the present invention are:

[0020] The present invention provides an arc guide mechanism comprising a guide post and a guide block. The guide post is mounted on the button, and the guide block is mounted on the rod. The guide block is provided with an arc groove. The guide post and the arc groove are slidably connected. When the button drives the guide post downward, the guide post and the guide block slide relative to each other. When the guide post moves from the upper end point of the arc groove to the lower end point of the arc groove, the guide block also drives the rod body to retract toward the housing, thereby unlocking the watchband. Compared with the previous method of using inclined sliding, this method can shorten the longitudinal key travel of the button and reduce the thickness of the telescopic structure, adapting to the current trend of miniaturization of smart bracelets and smart watches.

[0021] Furthermore, the present invention uses only one retractable rod for locking, and a fixing pin is provided on the housing at the other end corresponding to the rod, which can reduce the number of parts, reduce production costs and shorten the overall length. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the overall explosion structure of the present invention;

[0024] Figure 3 It is a structural schematic diagram of the first shell in the housing of the present invention;

[0025] Figure 4 Schematic diagram of the structure of the second shell in the housing of the present invention;

[0026] Figure 5 It is a structural schematic diagram of the key of the present invention;

[0027] Figure 6 This is a schematic structural diagram of the key of the present invention from another perspective;

[0028] Figure 7 Schematic diagram of the structure of the rod body of the present invention;

[0029] Figure 8 It is a schematic diagram of the local structure of the present invention;

[0030] Figure 9 It is a schematic cross-sectional view of a local structure of the present invention;

[0031] Figure 10 This is a schematic diagram of the principle analysis of inclined plane sliding in the past;

[0032] Figure 11 Schematic diagram for analyzing the working principle of the arc guide mechanism in the present invention;

[0033] Figure 12 It is a schematic top view of the structure of the rod body of the present invention in an extended state;

[0034] Figure 13 for Figure 12 Schematic diagram of the structural cross-section at point A in the middle;

[0035] Figure 14 for Figure 12 Schematic diagram of the cross-section of the structure at point B;

[0036] Figure 15 Schematic diagram of the top view of the rod body of the present invention in a retracted state;

[0037] Figure 16 for Figure 15Schematic diagram of the cross-section of the structure at point C in the middle;

[0038] Figure 17 for Figure 15 Schematic diagram of the structural cross-section at point D in the middle.

[0039] 100, housing; 110, first housing; 111, fixing column; 112, fixing pin; 113, sliding through hole; 114, first connecting groove; 115, third connecting groove; 116, travel groove; 117, limit groove; 118, balancing groove; 120, second housing; 121, fixing through groove; 122, sliding through groove;

[0040] 200, button; 210, limit seat; 220, anti-slip button; 230, second connecting groove; 240, connecting seat; 250, avoidance groove;

[0041] 300, first elastic member;

[0042] 400, rod body; 410, baffle;

[0043] 500, second elastic member;

[0044] 600, arc guide mechanism; 610, guide column; 620, guide block; 621, arc groove; 630, balance bar. DETAILED DESCRIPTION

[0045] To facilitate understanding of the present invention, the present invention will be described more fully below with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the accompanying drawings. However, the present invention may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the present disclosure.

[0046] It should be noted that when an element is referred to as being “fixed to” another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or there may be an intermediate element.

[0047] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in this specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0048] like Figures 1-9 As shown,

[0049] A watchband quick-release telescopic structure includes a housing 100, a button 200, a first elastic member 300, a rod 400, a second elastic member 500, and an arc guide mechanism 600;

[0050] The housing 100 includes a first shell 110 and a second shell 120. The first shell 110 and the second shell 120 are matched and connected in the longitudinal direction. Furthermore, the first shell 110 is provided with a fixing column 111, and the second shell 120 is provided with a fixing groove 121 corresponding to the fixing column 111 to facilitate alignment.

[0051] In this embodiment, a fixing pin 112 is provided at one end of the first housing 110 along the length direction for connecting to the watch strap, so that only one rod 400 is required for locking and unlocking, thereby reducing the number of parts, reducing production costs and shortening the overall length;

[0052] The first housing 110 is provided with a sliding hole 113; the second housing 120 is provided with a sliding slot 122; the sliding hole 113 is located at the other end of the first housing 110 in the longitudinal direction relative to the fixing pin 112, so as to allow the rod 400 to be slidably assembled; the axis of the sliding slot 122 is perpendicular to the axis of the sliding hole 113, so as to allow the button 200 to be slidably assembled;

[0053] The button 200 is slidably assembled in the housing 100 , and a first elastic member 300 is connected between the button 200 and the housing 100 ;

[0054] In this embodiment, the button 200 is slidably assembled in the sliding groove 122. To lock the sliding distance of the button 200 in the sliding groove, a limit seat 210 is provided at the bottom of the button 200. The outer diameter of the limit seat 210 is larger than the inner diameter of the sliding groove 122, and the limit post is located on the lower side of the sliding groove 122 to limit the button 200.

[0055] Furthermore, a plurality of anti-slip buttons 220 are provided on the top array of the key 200 to improve the recognition and anti-slip properties of the key 200;

[0056] The first elastic member 300 is a spring. To ensure the connection stability of the first elastic member 300, a first connecting groove 114 is provided in the first housing 110; a second connecting groove 230 is provided in the button 200; the first connecting groove 114 and the second connecting groove 230 are located correspondingly. One end of the first elastic member 300 is connected to the first connecting groove 114, and the other end is connected to the second connecting groove 230. This ensures the position stability of the first elastic member 300 and prevents vibration during compression and rebound.

[0057] The rod body 400 is slidably assembled in the housing 100 , and a second elastic member 500 is connected between the rod body 400 and the housing 100 ;

[0058] In this embodiment, the first housing 110 is provided with a third connecting groove 115, which is located adjacent to the sliding through hole 113. The rod 400 is provided with a blocking piece 410, which is located in the third connecting groove 115. The second elastic member 500 is a spring, one end of which is connected to the third connecting groove 115 and the other end of which is connected to the blocking piece 410.

[0059] The rod body 400 and the button 200 are slidably connected via an arc guide mechanism 600;

[0060] In this embodiment, the arc guide mechanism 600 includes a guide post 610 and a guide block 620; the guide block 620 is provided with an arc groove 621; the guide post 610 is slidably connected to the arc groove 621;

[0061] The button 200 is provided with a connecting seat 240; the guide post 610 is a round rod, one end of which is connected to the connecting seat 240 and the other end extends into the circular arc groove 621. Furthermore, to ensure that the longitudinal pressing stroke of the button 200 can drive the rod body 400 to extend and retract, the first housing 110 is provided with a travel groove 116 for supporting the button 200 at the end of the pressing stroke.

[0062] The guide block 620 is fixedly mounted on the rod body 400 , and the outer arc of the circular arc slot 621 is close to the sliding hole 113 , and the inner arc is away from the sliding hole 113 ;

[0063] Furthermore, in order to ensure the movement stability of the guide block 620, a limiting groove 117 is provided in the first shell 110 for the guide block 620 to limit the sliding; an avoidance groove 250 is provided on the button 200 at a position corresponding to the limiting groove 117 for avoiding the guide block 620.

[0064] Furthermore, since the telescopic structure is provided with only a single rod body 400, in order to prevent the guide block 620 from flipping along the axial direction of the rod body 400 or deflecting in the radial direction during movement, a balancing rod 630 is provided at the end of the guide block 620 away from the rod body 400; a balancing groove 118 is provided in the first housing 110; the balancing groove 118 is fitted with the balancing rod 630, and when the guide block 620 drives the rod body 400 to extend and retract, the balancing rod 630 is supported by the balancing groove 118 to prevent displacement, thereby ensuring the operational stability of the rod body 400 and the guide block 620; the balancing groove 118, the limiting groove 117, the third connecting groove 115, and the sliding through hole 113 are aligned in a straight line;

[0065] The arc guide mechanism 600 includes a guide post 610 and a guide block 620. The guide post 610 is disposed on the button 200, and the guide block 620 is disposed on the rod body 400. The guide block 620 is provided with an arc groove 621. The guide post 610 is slidably connected to the arc groove 621. When the button 200 drives the guide post 610 downward, the guide post 610 and the guide block 620 slide relative to each other. When the guide post 610 moves from the upper end point of the arc groove 621 to the lower end point of the arc groove 621, the guide block 620 also drives the rod body 400 to retract toward the housing 100, thereby unlocking the watchband. Compared with the previous method of inclined sliding, this method can reduce the longitudinal key travel of the button 200 and the thickness of the telescopic structure, thus adapting to the current trend of miniaturization of smart bracelets and smart watches.

[0066] Specifically, if Figure 10 As shown, in the past, a structure with inclined sliding was used. The required lateral movement distance of the telescopic rod was set as a, the key travel of the cap body was set as b, and the inclined distance was set as c. When c was 1.7 mm, a needed to be 1.4 mm to be unlocked smoothly. At this time, the key travel of the cap body needed to be 1.0 mm to meet the length requirement of a. By adopting the arc guide mechanism 600, as shown in FIG. Figure 11 As shown, the required lateral movement distance of the telescopic rod is set as a1, the key travel of the cap body is set as b1, and the distance between the centers of the two ends of the arc is set as c1. When c1 is 1.7mm and a1 is 1.4mm, b1 only needs a key travel of 0.9mm to meet the requirements of a1, shortening the required longitudinal space. Furthermore, in this case, the diameter d1 of the two ends of the arc groove 621 is 0.8mm, the outer arc diameter d2 is 3.9mm, and the inner arc diameter d3 is 2.3mm. The above data can be adjusted according to the required lateral movement distance of the telescopic rod.

[0067] In addition, the relative sliding mode of the arc groove 621 can bring a smoother feel compared to the previous inclined surface sliding mode. Since the inclined surfaces used to contact each other in a surface-to-surface manner during sliding, the contact surface was large, and the friction generated was relatively large. Moreover, after long-term use, wear will occur, resulting in tolerances and affecting the precision of the fit. The arc groove 621 is slidably connected to the guide column 610, which has the advantages of smaller contact surface and smaller friction compared to the existing inclined surface fit, thereby improving the feel and extending the service life.

[0068] Working principle: Figure 12-17 As shown, in the default state, the first elastic member 300 and the second elastic member 500 are in a rebound state, the button 200 is at the highest point of its travel, the rod body 400 extends outward from the sliding hole 113 to connect with the watchband to achieve locking, and at this time, the guide post 610 is at the upper end of the arc groove 621. When the button 200 is pressed downward, the first elastic member 300 is compressed, and the guide post 610 moves downward with the button 200. At this time, the arc groove 621 slides relative to the guide post 610, causing the rod body 400 to retract toward the housing 100 and compress the second elastic member 500. When the button 200 is fully pressed, the guide post 610 is at the lower end of the arc groove 621, and the rod body 400 is fully retracted into the housing 100, thereby unlocking the watchband. When it is necessary to lock again, the button 200 only needs to be released. At this time, the first elastic member 300 and the second elastic member 500 rebound, driving the rod body 400 to extend outward from the sliding hole 113 and connect with the watchband to achieve locking.

[0069] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0070] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. A watch strap quick-release telescopic structure, characterized in that: include: A housing, wherein a fixing pin is provided at one end of the housing along the length direction; a button slidably assembled in the housing, wherein a first elastic member is connected between the button and the housing; And a rod body slidably assembled in the shell, a second elastic member is connected between the rod body and the shell; the rod body and the button are slidably connected via an arc guide mechanism; in a default state, the rod body extends out from the other end of the shell relative to the fixing pin in the length direction, and by pressing the button, the rod body can be retracted into the shell, thereby unlocking this structure and the watch strap.

2. The watch strap quick-release telescopic structure according to claim 1, characterized in that: The housing includes a first shell and a second shell; the first shell is matched with the second shell.

3. The watchband quick-release telescopic structure according to claim 1, characterized in that: A sliding through hole and a sliding through groove are provided in the shell; the sliding through hole is located at the other end of the shell relative to the fixing pin in the length direction, so that the rod body can be slidably assembled; the axis of the sliding through groove is perpendicularly staggered with the axis of the sliding through hole, so that the button can be slidably assembled.

4. The watchband quick-release telescopic structure according to claim 1, characterized in that: A first connecting groove is provided in the shell; a second connecting groove is provided in the button; the positions of the first connecting groove correspond to those of the second connecting groove; one end of the first elastic member is connected to the first connecting groove, and the other end is connected to the second connecting groove.

5. The watchband quick-release telescopic structure according to claim 1, characterized in that: A third connecting groove is provided in the housing; a blocking piece is provided on the rod body; the blocking piece is located in the third connecting groove; one end of the second elastic member is connected to the third connecting groove, and the other end is connected to the blocking piece.

6. The watchband quick-release telescopic structure according to claim 1, characterized in that: The circular arc guide mechanism includes a guide column and a guide block; a circular arc groove is provided in the guide block; and the guide column is slidably connected to the circular arc groove.

7. The watchband quick-release telescopic structure according to claim 6, characterized in that: A connecting seat is provided on the button; one end of the guide column is connected to the connecting seat, and the other end extends into the circular arc groove.

8. The watchband quick-release telescopic structure according to claim 6, characterized in that: The guide block is fixedly arranged on the rod body.

9. The watchband quick-release telescopic structure according to claim 6, characterized in that: A limiting groove is provided in the housing for limiting the sliding of the guide block; and an avoidance groove is provided on the button at a position corresponding to the limiting groove for avoiding the guide block.

10. The watch strap quick-release telescopic structure according to claim 8, characterized in that: A balancing rod is provided at one end of the guide block away from the rod body; a balancing groove is provided in the shell; and the balancing groove is fitted with the balancing rod.

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