A movement structure of a firmly assembled quartz watch

Abstract

The present invention relates to the technical field of watch movement, and in particular to a firmly assembled quartz watch movement structure. The present invention embeds a C-shaped insert into the structure of a sub-gear and a sub-wheel tube to realize the axial fixed connection between the sub-wheel tube and the sub-gear, so that the two are not easily separated and fall off, thereby realizing the tight assembly of the sub-gear, and after the connecting tube is embedded in the through hole in the center of the sub-gear, the insert can be stuck in the gap between the sub-gear and the connecting tube, so that the insert is not easily separated from the sub-wheel tube and the sub-gear. In addition, the present invention uses a knurling structure on the annular surface of one end of the second shaft so that when the second shaft is inserted into the through hole of the second gear, the knurling can increase the friction resistance between the second shaft and the through hole of the second gear, and because the outer diameter of the knurling is interference fit with the through hole, the second shaft and the second gear can be stuck tightly and will not fall off, so that the assembly of the second shaft and the second gear is more secure, thereby improving the service life of the quartz watch movement.

Description

Technical Field

[0001] The invention relates to the technical field of clock movement, in particular to a firmly assembled quartz clock movement structure. Background Art

[0002] At present, there is a problem in the common pieces in the movement of quartz watches, that is, the second gear is generally installed on the minute gear. When the second hand moves, it will inevitably rub the minute gear, causing the minute gear to drive the minute hand to shake, affecting the overall appearance of the watch. In addition, the connection between the minute gear and the minute wheel tube in the watch movement and the connection between the second gear and the second shaft are currently assembled and fixed by crimping, which is easy to fall off during use, thus affecting the service life of the watch. Summary of the invention

[0003] The invention provides a firmly assembled quartz watch movement structure to overcome the problem that the second shaft and second gear as well as the minute wheel pipe and minute gear in the quartz watch movement in the prior art are easy to fall off.

[0004] The present invention adopts the following technical scheme: a movement structure of a firmly assembled quartz watch, comprising a needle splint, a second shaft, a second gear, a minute wheel tube, a minute gear and a connecting tube, wherein the needle splint is fixed in the main body of the movement, the connecting tube is fixed to the needle splint, the minute wheel tube is sleeved outside the connecting tube, the second shaft is installed in the minute wheel tube, and one end of the second shaft extends out of the connecting tube to connect with the second gear, the minute gear is coaxially fixed to the minute wheel tube, the minute gear and the second gear are connected through a transition wheel transmission, and is characterized in that: it also includes a C-shaped insert, and the minute wheel tube is provided with a cross-sectional inner wall at one end connected to the minute gear. An L-shaped mounting groove includes a vertical groove and a horizontal groove perpendicular to each other. The sub-gear is provided with a recessed positioning groove at the end face corresponding to the sub-gear tube, and the end of the sub-gear tube is adapted to be embedded in the positioning groove. The sub-gear is provided with a key groove at the other end relative to the positioning groove, and the key groove is aligned with the vertical groove of the mounting groove. The embedded part is adapted to be embedded in the key groove and the vertical groove of the mounting groove, and the bottom of the embedded part is embedded in the horizontal groove of the mounting groove, and the top of the embedded part is buckled on the upper surface of the sub-gear; the annular surface of one end of the second shaft connected to the second gear is provided with a knurling, and the outer diameter formed by the knurling is connected with the through hole in the center of the second gear through an interference fit.

[0005] As a further improvement, the movement structure includes a transition wheel, the transition wheel includes a transition wheel small tooth and a transition wheel large tooth, the transition wheel small tooth is meshed with the minute gear, and the transition wheel large tooth is meshed with the second gear.

[0006] As a further improvement, a lower clamping plate is also included, and the transition wheel also includes a vertical connecting shaft fixed coaxially with the large teeth and small teeth of the transition wheel. A connecting column is arranged on the lower clamping plate at a position corresponding to the connecting shaft, and the connecting column is provided with an embedding groove, and the end of the connecting shaft is embedded in the embedding groove.

[0007] As a further improvement, the annular surfaces at both ends of the second axis are provided with knurling.

[0008] As a further improvement, a lower clamping plate is further included, the end surface of the lower clamping plate is provided with an embedding groove, and the other end of the sub-wheel tube opposite to the sub-wheel is embedded in the embedding groove.

[0009] As a further improvement, the surface of the embedded part corresponding to the connecting pipe is provided with raised bumps.

[0010] From the above description of the structure of the present invention, it can be seen that compared with the prior art, the present invention has the following advantages: the present invention uses the knurling structure of the annular surface at one end of the second shaft to increase the friction resistance between the second shaft and the through hole of the second gear when the second shaft is inserted into the through hole of the second gear, and because the outer diameter of the knurling is interference fit with the through hole, the second shaft and the second gear can be clamped tightly and will not fall off, thereby making the assembly of the second shaft and the second gear more secure, thereby improving the service life of the quartz watch. In addition, the present invention uses the structure of the C-shaped inserting piece to be embedded in the sub-gear and the sub-wheel tube to achieve the axial fixed connection between the sub-wheel tube and the sub-wheel, so that the two are not easy to separate and fall off, thereby achieving the tight assembly of the sub-wheel, and after the connecting tube is embedded in the through hole at the center of the sub-wheel, the inserting piece can be clamped in the gap between the keyway of the sub-wheel and the connecting tube, so that the inserting piece is not easy to separate from the sub-wheel tube and the sub-wheel, thereby improving the service life of the quartz watch. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a side structural schematic diagram of the present invention.

[0012] Figure 2 for Figure 1 A magnified schematic diagram of the center A direction.

[0013] Figure 3 It is a schematic diagram of the side structure of the connection between the lower clamping plate, the needle clamping plate and the transition wheel.

[0014] Figure 4 This is a schematic diagram of the side structure of the connection between the second shaft and the second gear.

[0015] Figure 5 This is a schematic diagram of the side structure after the connecting pipe, sub-gear, sub-gear pipe and embedded parts are exploded.

[0016] Figure 6It is a schematic diagram of the three-dimensional structure after the connection of the connecting pipe, the sub-gear, the sub-gear pipe and the embedded part. DETAILED DESCRIPTION

[0017] The specific embodiments of the present invention will be described below with reference to the accompanying drawings.

[0018] As attached Figure 1 and 3 As shown, a firmly assembled movement structure of a quartz watch includes a lower clamping plate 1, a needle clamping plate 2, a second shaft 3, a second gear 4, a minute wheel tube 7, a minute gear 6, an insert 8 and a connecting tube 9. The upper clamping plate (not shown) on the lower clamping plate 1 constitutes the main structure of the movement. The lower clamping plate 1 is provided with a threaded hole, and the needle clamping plate 2 is provided with a through hole. When assembling, after the through hole of the needle clamping plate 2 is aligned with the threaded hole of the lower clamping plate 1, a screw is passed through the through hole of the needle clamping plate 2 until it is locked and connected with the threaded hole, so that the needle clamping plate 2 can be fixed in the movement body.

[0019] As attached Figure 3 As shown, the connecting tube 9 is fixed to the needle clamp 2, and the connection method can be a riveting fixing method. The minute wheel tube 7 is inserted into the connecting tube 9, and the second shaft 3 is installed in the minute wheel tube 7, and one end of the second shaft 3 extends out of the connecting tube 9 to connect with the second gear 4. Figure 4 As shown, the annular surfaces at both ends of the second shaft 3 are provided with knurls 31, and the outer diameter formed by the knurls 31 is connected with the through hole at the center of the second gear 4 by interference fit. The structure of the knurls 31 enables the friction resistance between the second shaft 3 and the through hole of the second gear 4 to be increased by the knurls 31 when the second shaft 3 is inserted into the through hole of the second gear 4, and because the outer diameter of the knurls 31 is interference fit with the through hole, the second shaft 3 and the second gear 4 can be locked tightly and will not fall off, thereby making the assembly of the second shaft 3 and the second gear 4 more secure. In addition, continue to refer to the attached Figure 4 As shown, the annular surfaces at both ends of the second shaft 3 are provided with knurling 31. This structure enables both ends of the second shaft 3 to be assembled and connected with the second gear 4 during the process of assembling the second shaft 3 and the second gear 4 using automated equipment, without having to distinguish the assembly direction of the second shaft 3. This facilitates the assembly of the second shaft 3 and is beneficial to improving the overall assembly efficiency of the watch movement.

[0020] As attached Figure 1 , 2As shown in , 5 and 6, the sub-gear 6 is provided with a recessed positioning groove 61 on the end surface corresponding to the sub-gear tube 7, and the end of the sub-gear tube 7 is adapted to be embedded in the positioning groove 61. This structure makes the sub-gear tube 7 and the sub-gear 6 correspond to each other coaxially after assembly. The insert 8 is a C-shaped structure, and the surface of the insert 8 corresponding to the connecting tube 9 is provided with a raised convex point 81 after assembly. The convex point 81 can reduce the contact area between the insert 8 and the connecting tube 9, thereby reducing the friction between the insert 8 and the connecting tube 9. The sub-gear tube 7 is provided with an L-shaped installation groove 71 on the inner side wall of one end connected to the sub-gear 6. The installation groove 71 includes a vertical groove 711 and a horizontal groove 712 that are vertically connected to each other, and the installation groove 71 has at least two circumferential arrays distributed on the inner wall of the sub-gear tube 7. The sub-gear 6 is provided with a plurality of key grooves 62 at the other end relative to the positioning groove 61, and the key grooves 62 are aligned with the vertical grooves 712 of the installation groove 71. In addition, the top view dimensions of the keyway 62 and the vertical groove 712 are consistent, and the middle section of the embedded member 8 is adapted to be embedded in the keyway 62 and the vertical groove 712, and the embedded member 8 is embedded in the thickness formed by the horizontal groove 712 at the bottom of the installation groove. Specifically, when assembling the sub-wheel tube 7 and the sub-wheel 6, and after one end of the sub-wheel tube 7 is embedded in the positioning groove 61 of the sub-wheel 6, the embedded member 8 is placed along the through hole in the center of the sub-wheel 9, and then the embedded member 8 is pushed into the vertically corresponding keyway 62 and vertical groove 711, so that the upper end of the embedded member 8 is buckled on the upper surface outside the through hole of the sub-wheel 6, and the lower end of the embedded member 8 is embedded in the horizontal groove 712 at the lower end of the installation groove 7. The structure in which the embedded member 8 is embedded in the sub-wheel 6 and the sub-wheel tube 7 realizes the axial fixed connection between the sub-wheel tube 7 and the sub-wheel 6, and as shown in the attached Figure 2 As shown, after the connecting tube 9 is embedded in the through hole at the center of the sub-gear 6, the embedded member 8 can be stuck in the gap between the sub-gear 6 and the connecting tube 9. Preferably, the end surface of the lower clamping plate 1 is provided with an embedding groove 11, and a jewel bearing is fixed in the embedding groove 11. The other end of the sub-gear tube 7 relative to the sub-gear 6 is embedded in the jewel bearing in the embedding groove 11 with an interference fit, thereby realizing the connection of the sub-gear tube 7.

[0021] As attached Figure 1 and 4 As shown, the second gear 4 includes a coaxial transmission large tooth 41 and a transmission small tooth 42, and the transmission large tooth 41 is meshed and connected to a driving component (not shown) that drives the movement to operate. The transition wheel 5 includes a transition wheel small tooth, a transition wheel large tooth, and a vertical connecting shaft 51 that is fixed coaxially with the transition wheel large tooth and the transition wheel small tooth. Preferably, a connecting column 12 is provided on the lower splint 1 at a position corresponding to the connecting shaft 51, and an embedding groove is provided on the top of the connecting column 12, and a jewel bearing is fixed in the embedding groove, and the end of the connecting shaft 51 is embedded in the jewel bearing in the embedding groove with an interference fit. As shown in the attached Figure 1As shown, this structure can be used to achieve that after the transition wheel 5 is fixed, the small teeth of the transition wheel mesh with the minute gear 6, and the large teeth of the transition wheel mesh with the transmission small teeth 42 of the second gear 4. After adopting the above structure, the second shaft 3 and the minute wheel pipe 4 are separated by the connecting tube 9 and the insert 8, and are not in direct contact, so the friction force transmitted to the minute wheel pipe 4 due to the rotation of the second shaft 3 can be reduced, thereby reducing the vibration of the minute gear 6, so that the movement of the quartz watch can obtain a longer service life and more accurate travel accuracy.

[0022] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A movement structure of a firmly assembled quartz watch, comprising a needle splint, a second shaft, a second gear, a minute wheel tube, a minute gear and a connecting tube, wherein the needle splint is fixed in the main body of the movement, the connecting tube is fixed to the needle splint, the minute wheel tube is sleeved outside the connecting tube, the second shaft is installed in the minute wheel tube, and one end of the second shaft extends out of the connecting tube to connect to the second gear, the minute gear is coaxially fixed to the minute wheel tube, and the minute gear and the second gear are connected through a transition wheel transmission, characterized in that: The invention also comprises an insert with a C-shaped structure, wherein the inner side wall of the minute wheel tube at one end connected to the minute gear is provided with an installation groove with an L-shaped cross section, the installation groove comprises a vertical groove and a horizontal groove perpendicular to each other, the minute gear is provided with a recessed positioning groove at the end face corresponding to the minute wheel tube, the end of the minute wheel tube is adapted to be embedded in the positioning groove, the minute gear is provided with a key groove at the other end relative to the positioning groove, the key groove is aligned with the vertical groove of the installation groove, the insert is adapted to be embedded in the key groove and the vertical groove of the installation groove, and the bottom of the insert is nested in the horizontal groove of the installation groove, and the top of the insert is buckled on the upper surface of the minute gear; the surface of the insert corresponding to the connecting tube is provided with a raised convex point; the annular surface of the second shaft at one end connected to the second gear is provided with a knurling, and the outer diameter formed by the knurling is connected with the through hole in the center of the second gear by interference fit.

2. A firmly assembled quartz watch movement structure according to claim 1, characterized in that: The movement structure comprises a transition wheel, which comprises a transition wheel small tooth and a transition wheel large tooth. The transition wheel small tooth is meshed with the minute gear, and the transition wheel large tooth is meshed with the second gear.

3. A firmly assembled quartz watch movement structure according to claim 2, characterized in that: It also includes a lower clamping plate, and the transition wheel also includes a vertical connecting shaft fixed coaxially with the large teeth and small teeth of the transition wheel. A connecting column is arranged on the lower clamping plate at a position corresponding to the connecting shaft, and the connecting column is provided with an embedding groove, and the end of the connecting shaft is embedded in the embedding groove.

4. The firmly assembled quartz watch movement structure according to claim 1, characterized in that: The annular surfaces at both ends of the second axis are provided with knurling.

5. The firmly assembled quartz watch movement structure according to claim 1, characterized in that: It also includes a lower clamping plate, the end surface of which is provided with an embedding groove, and the other end of the sub-wheel tube opposite to the sub-wheel is embedded in the embedding groove.

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