clock minute wheel structure
Technical Field
The utility model relates to a clock and watch minute wheel structure.
Background
the movement of the present clock generally has gear drive, the quartz watch is as the driving wheel through the rotor, drive a series of gears to transmit to the second wheel, drive to the minute wheel through the train, and then to the hour wheel, the minute wheel assembly of the mechanical watch is riveted together and made up of minute wheel tube 100a and minute wheel piece 100b, two are both metals, the minute wheel assembly of the quartz watch is riveted together by minute wheel and minute wheel tube, the minute wheel is generally plastic, the minute wheel tube is metal, and the minute wheel tube is processed by thicker bar, because its round platform rank is more and greater, lead to the amount of cut of the bar to be more, the centre hole is processed by way of drilling too, the amount of processing is great, the inefficiency.
disclosure of Invention
The utility model discloses improve above-mentioned problem, promptly the to-be-solved technical problem of the utility model is that thereby current minute wheel pipe need cut more step face and lead to the work load big, and efficiency is lower.
the utility model discloses a concrete implementation scheme is: the utility model provides a clock and watch minute wheel structure, includes minute wheel pipe and the minute wheel piece of cover locating minute wheel pipe upper end, minute wheel piece is including coaxial superpose last gear piece and lower gear piece, minute wheel pipe side has the arch, the arch has one or more.
Furthermore, the bulge of the wheel-separating pipe is annular bulge or flat.
Furthermore, the protrusions of the minute wheel pipe comprise minute wheel piece limiting protrusions for limiting the height of the minute wheel piece and minute needle limiting protrusions for limiting the height of the minute needle assembly.
Furthermore, a sleeve extends from the lower part of the wheel distributing piece, and a fixing bulge which is wrapped in the sleeve and prevents the wheel distributing pipe from being separated from the wheel distributing piece is arranged on the wheel distributing pipe.
Furthermore, the minute wheel pipe is longitudinally provided with three bulges, the first bulges are sequentially arranged from the bottom of the watch case to the panel direction of the watch case and are used for limiting the riveting height of the minute wheel piece and the minute wheel pipe, and the first bulges are matched with the step hole of the inner clamping plate of the movement to prevent the minute wheel assembly from falling out of the movement; the second bulge is matched with the main clamping plate hole so as to prevent the minute wheel assembly from shaking in the hole; a third protrusion for limiting the height of the dispensing needle, the first protrusion having a cross-section greater than the second protrusion and the third protrusion.
furthermore, the minute wheel pipe is longitudinally provided with three bulges, a sleeve wrapped outside the minute wheel pipe extends below the minute wheel piece, the sleeve comprises a first bulge, a second bulge and a third bulge, wherein the first bulge is wrapped by the sleeve and used for preventing the minute wheel pipe from being pulled out of the sleeve, the first bulge is sequentially arranged from the bottom of the watchcase to the panel direction of the watchcase, the second bulge is used for limiting the forming position of the sleeve in the mold, and the third bulge is used for limiting the assembling height of the minute hand or is sleeved in the hour wheel to prevent the hour wheel from being pulled out.
Furthermore, divide the wheel pipe along vertically laid and be used for spacing first arch and second arch, include that be used for restricting the first arch of the riveting height of minute wheel piece and minute wheel pipe and be used for restricting the second arch of the assembly height of minute hand that sets gradually to watchcase panel direction by watchcase bottom.
Furthermore, divide wheel piece below to extend to have the sleeve pipe of parcel in minute wheel outside of managing, divide the wheel pipe along vertically laying to be used for spacing first arch and second arch, include first arch is arranged in the restriction to divide the wheel pipe to extract from the sleeve pipe, and the second arch can restrict and divide the wheel pipe to extract from the sleeve pipe and spacing restriction divides the assembly height of needle.
furthermore, the minute wheel pipe and the minute wheel piece are connected in a riveting and pressing mode or are integrally formed in an injection molding mode.
Compared with the prior art, the utility model discloses following beneficial effect has: the minute wheel pipe and the minute wheel sheet are assembled into a whole in a riveting mode, or the minute wheel pipe is arranged in a die as an insert and is integrally formed with the gear sheet, the outer circle and the inner hole of the minute wheel pipe do not need to be machined and only need to be cut off, the bulge is formed by extrusion through a clamp or the die, the machining efficiency is high, the bulge can limit the assembly height of the minute wheel and the minute wheel pipe, meanwhile, the bulge is matched with the hole of the main clamping plate, the step in the hole of the main clamping plate limits the assembly height of the minute wheel assembly, and the minute wheel pipe is prevented from being pulled out of the core of the machine; the assembling height of the minute hand can be limited, and in addition, the assembling height of the hour wheel can be limited according to the assembling structure, so that the hour wheel is prevented from falling off from the movement core.
Drawings
FIG. 1 is a cross-sectional view of a prior art minute wheel assembly on the market;
FIG. 2 is a sectional view of a minute wheel pipe and a minute wheel assembly after being riveted with a minute wheel according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view of a structure of a minute wheel pipe according to an embodiment of the present invention, in which a first protrusion is pressed to be flat and engaged with a minute wheel assembly;
Figure 4 is a cross-sectional view of the present invention showing the minute wheel assembly of figure 2 assembled on the movement;
Figure 5 is a cross-sectional view of the present invention with the cannon pinion assembly of figure 3 assembled on a cartridge;
FIG. 6 is a sectional view of the two-split wheel pipe and the two-split wheel injection molding integrated rear wheel-split assembly according to the embodiment of the present invention;
Figure 7 is a cross-sectional view of the present invention showing the minute wheel assembly of figure 4 assembled on the movement;
Fig. 8 is a top view of the two-divided wheel pipe according to the embodiment of the present invention, the structure of the two-divided wheel pipe is cylindrical.
FIG. 9 is a sectional view of the third wheel pipe structure according to the embodiment of the present invention;
Fig. 10 is a cross-sectional view of a minute wheel assembly after a projection of a minute wheel pipe is pressed to the limit and riveted with a minute wheel according to an embodiment of the present invention;
FIG. 11 is a schematic structural view of a fourth embodiment of the wheel-separating tube of the present invention, wherein the shape of the protrusion is flat;
Fig. 12 is a schematic top view of the structure of fig. 10 according to the present invention;
Fig. 13 is a cross-sectional view of the wheel-separating pipe and the wheel-separating injection-molded integrated rear wheel-separating assembly in the embodiment of the present invention shown in fig. 10.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
The first embodiment is as follows: 2-4, a clock minute wheel structure, including a minute wheel tube 101 minute wheel piece 102, the circumference of the minute wheel tube has a protrusion, in this example, 3 protrusions, 101a, 101b, 101c, wherein the protrusion 101a limits the riveting height of the minute wheel piece 102 and the minute wheel tube 101, the sectional view of the minute wheel assembly after assembling to the movement, the protrusion 101a matches with a step hole 203a of a inner clamp plate 203 of the movement, the side surface of the step hole 203a matches with the outer edge of the protrusion 101a, the bottom surface of the step hole 203a matches with the bottom of the protrusion 101a, the minute wheel tube 101 is limited from being pulled out from the movement, and the protrusion 101b of the minute wheel tube 101 also matches with the hole of the main clamp plate 203, the minute wheel assembly is limited from shaking; the lobe 101a has an outer diameter greater than the other 2 lobes. In addition, the minute wheel pipe 101 has a protrusion 101c which is matched with the end surface step hole 202a of the hour wheel 202, and the protrusion 101c can be buckled with the end surface step hole 202a of the hour wheel 202 so as to prevent the hour wheel from falling off from the machine core after being assembled, thus avoiding the use of an hour wheel cover. While the projections 101c may limit the height of the dispensing needle.
In this embodiment, because there is protruding 101c, assemble into protruding 101c earlier, lead to the splint to correspond the aperture of protruding 101a and must enlarge, and the second is protruding to restrict minute wheel subassembly and rocks.
The wheel-separating tube in fig. 3 and 5 is a cross-sectional view of the structure that the bulge 101a of the wheel-separating tube is pressed to be flat and matched with the wheel-separating assembly.
Example two: as shown in fig. 6-8, minute wheel pipe 101 and minute wheel piece 102 are moulded plastics integratively, minute wheel piece below extends to have the parcel in the outside sleeve pipe 102a of minute wheel pipe, minute wheel pipe has vertically laid three arch along vertically, and the parcel prevents that minute wheel pipe from protruding 301a that the cover intraductal extracted for the protruding 301b of restriction sleeve pipe shaping position in the mould, and be used for restricting minute needle assembly height's protruding 301c, protruding 301b not only can cooperate with sleeve pipe 102a and can also play the position of control sleeve pipe when the injection moulding in the mould.
In order to ensure that the plastic of the sleeve 102a does not fill the gap between the protrusion 301b and the protrusion 301c during injection molding, the protrusion 301b has a larger diameter than the protrusion 301 c.
The bulges 301c distributed along the longitudinal direction of the minute wheel pipe can limit the assembly height of the minute hand, and can also be matched with the hour wheel hole on the upper part of the minute wheel to play a role of limiting the hour wheel, and the outer diameter of the bulges 301c is slightly larger than the hour wheel hole during assembly, so that the hour wheel is limited to be close to the step hole on the end surface of the hour wheel after the hour wheel is assembled, and the hour wheel is ensured not to fall out.
In the sectional view of the minute wheel structure of the embodiment shown in fig. 7 assembled in the movement, the plastic cylinder surface wrapped around the periphery of the minute wheel tube is matched with the hole cylinder surface of the main clamping plate 302, and the protrusion below the minute wheel tube has the same function as the first embodiment and is matched with the stepped hole 202a on the end surface of the hour wheel 202, namely, the hour wheel is buckled and the assembling height of the minute hand is limited.
third embodiment, as shown in fig. 9 ~ 10, the minute wheel tube and the minute wheel sheet are riveted to form a minute wheel assembly, and the protrusion on the minute wheel tube 101 comprises a protrusion 401a and a protrusion 401b, wherein the protrusion 401b is used for limiting the assembly height of the minute hand only, and the protrusion 401a is the same as the protrusion 101a in the first embodiment and is used for limiting the extraction of the minute wheel tube 101 from the movement core.
This structure is because protruding 401b external diameter is very little, and the minute wheel pipe external diameter in the middle of two archs is with the little clearance fit in main splint aperture, and during the assembly minute wheel subassembly, protruding 401b can run through the hole of main splint, and the wheel back is taken turns in the installation, will assemble an hour wheel cover plate in addition and press the hour wheel, and is the same with traditional hour wheel cover plate.
Fig. 9 is a sectional view of the structure of fig. 9 in which the protrusion 401a is pressed to be flat and engaged with the minute wheel assembly.
Fourth embodiment, as shown in fig. 11 ~ 13, the side surface of the minute wheel tube has protrusions 501a and 501b in the shape of extruded flat, in this example, the number and the number of the protrusions can be set according to the requirement, in this embodiment, a sleeve 104b integrally injection-molded and encapsulated outside the minute wheel tube extends below the minute wheel piece, fig. 10 is a cross-sectional view of the minute wheel assembly of this embodiment after being integrally injection-molded with the minute wheel, the protrusion 501a functions to prevent the minute wheel tube from being pulled out of the minute wheel assembly, and the protrusion 501b can not only prevent the minute wheel tube from being pulled out of the minute wheel assembly but also limit the assembly height of the minute hand.
Any technical solution disclosed in the present invention, unless stated otherwise, if it discloses a numerical range, then the disclosed numerical range is the preferred numerical range, and any person skilled in the art should understand that: the preferred ranges are merely those values which are obvious or representative of the technical effect which can be achieved. Because numerical value is more, can't be exhaustive, so the utility model discloses just disclose some numerical values with the illustration the technical scheme of the utility model to, the numerical value that the aforesaid was enumerated should not constitute right the utility model discloses create the restriction of protection scope.
the utility model discloses if disclose or related to mutual fixed connection's spare part or structure, then, except that other the note, fixed connection can understand: a detachable fixed connection (for example using bolts or screws) is also understood as: non-detachable fixed connections (e.g. riveting, welding), but of course, fixed connections to each other may also be replaced by one-piece structures (e.g. manufactured integrally using a casting process) (unless it is obviously impossible to use an integral forming process).
In addition, the terms used in any aspect of the present disclosure as described above to indicate positional relationships or shapes include similar, analogous, or approximate states or shapes unless otherwise stated.
The utility model provides an arbitrary part both can be assembled by a plurality of solitary component parts and form, also can be the solitary part that the integrated into one piece technology was made.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the invention can be modified or equivalent substituted for some technical features; without departing from the spirit of the present invention, it should be understood that the scope of the claims is intended to cover all such modifications and variations.