Drive gear with universal clamping groove
Technical Field
The invention relates to the technical field of printing consumables, in particular to a driving gear with a universal clamping groove.
Background
The selenium drum is a printing consumable installed on the printer, the clamping groove on the selenium drum driving gear is connected with the clamp on the printer driving gear in a clamping mode to complete installation, the printer is started to drive the gear to rotate, the driving gear connected with the driving gear in a clamping mode rotates in the same direction, the driving gear is meshed with the developing gear and the powder stirring rod gear inside the selenium drum to be connected, and therefore all parts inside the selenium drum are sequentially associated to start printing.
The existing printer drives a gear to have two clips with different sizes, the existing printer is used as a toner cartridge manufacturer, the installation structure of the printer cannot be changed, in order to enable the produced product to be suitable for printers with the two different clips, the driving gears with two different specifications need to be produced, the driving gears only have the size difference of installation clamping grooves, the hidden danger of material mixing is generated in the assembling production process, and the production efficiency is reduced.
For customers, when the toner cartridge is replaced, the proper toner cartridge needs to be purchased according to the mounting structure on the printer, otherwise, the toner cartridge cannot be mounted, and the toner cartridge is inconvenient.
Disclosure of Invention
The invention mainly solves the defects in the prior art and provides the driving gear with the universal clamping groove.
In order to solve the technical problems, the invention adopts the technical scheme that:
the utility model provides a take drive gear of general draw-in groove, includes the gear body and follows the bellied cylinder of outer end terminal surface axial of gear body, coaxial shoulder hole has been seted up to inside from the outer end terminal surface to the cylinder, the shoulder hole is including the ladder aperture that is located the cylinder lower part and the ladder macropore that is located upper portion, ladder aperture and the macroporous connection plane of ladder are the ladder plane the inside first installation slot that is equipped with of ladder macropore the inside second installation slot that is equipped with of ladder aperture.
Preferably, the first mounting slot comprises a pair of first positioning blocks distributed in central symmetry, the first positioning blocks extend from the stepped plane to the end face of the outer end of the cylinder and are connected with the inner side surface of the stepped large hole, the first positioning blocks are close to a fan-ring shape, one side of each first positioning block is a plane perpendicular to the stepped plane, and the other side of each first positioning block is a slope face in arc transition to the stepped plane.
Preferably, the second mounting slot includes a pair of second positioning blocks distributed centrosymmetrically, the second positioning blocks extend from the bottom plane of the stepped hole to the stepped plane and are connected to the inner side surface of the stepped hole, the second positioning blocks are close to a fan-ring shape, and one side of the second positioning blocks is a plane perpendicular to the bottom of the stepped hole, and the other side of the second positioning blocks is a slope surface in arc transition to the bottom of the stepped hole.
Preferably, the bottom plane of the stepped small hole and the end face of the outer end of the gear body are in the same plane.
Preferably, the plane end face of the second positioning block is parallel to the plane end face of the first positioning block.
Preferably, a positioning column extends upwards and vertically from the end face of the outer end of the first positioning block, which is connected with the end face of the plane, and the end face of the outer end of the positioning column extends out of the end face of the outer end of the cylinder.
Preferably, a radial arc groove is formed at the joint of the positioning column and the positioning block.
Preferably, the gear on the gear body is a spur gear or a helical gear.
Preferably, the diameter of the cylinder is not larger than the diameter of the root circle of the gear body, and a positioning step is formed at the joint of the cylinder and the gear body.
The invention has the beneficial effects that:
the invention provides a driving gear with a universal clamping groove, wherein two clamping grooves with different specifications and sizes are integrated on the same driving gear, only the mounting structure connected with a printer is changed, other structures are unchanged, and a toner cartridge using the driving gear can be mounted with a printer with a large-size clip or a printer with a small-size clip, so that the driving gear is convenient and quick to use, and for manufacturers, the production cost is reduced from a long-term perspective, and meanwhile, the hidden danger of material mixing in the production process is also reduced.
Drawings
FIG. 1 is a schematic structural diagram of a driving gear with a universal slot according to the present invention;
FIG. 2 is a schematic structural diagram of a driving gear with a universal slot according to the present invention;
FIG. 3 is a schematic structural diagram of a driving gear with a universal slot according to the present invention;
FIG. 4 is a top view of a drive gear with universal card slot of the present invention;
FIG. 5 is a prior art printer driver gear with a small size mounting clip;
FIG. 6 is a prior art cartridge drive gear with a small mounting slot;
FIG. 7 is a prior art printer driver gear with large size clips;
fig. 8 is a prior art toner cartridge drive gear with a large mounting slot.
The numbers in the figures are as follows:
a gear body 1; a cylindrical body 2; a step plane 3; a first mounting slot 4; a positioning block 41; a positioning column 411; a second mounting slot 5; a second positioning block 51; an arc groove 6; the step 7 is positioned.
Detailed Description
The invention is further described with reference to the following description and embodiments in conjunction with the accompanying drawings.
As shown in fig. 5 to 8, for the two mounting structures with different specifications in the prior art, the printer driving gear for mounting the clip in the small size, the toner cartridge driving gear for mounting the clip in the small size, the printer driving gear for mounting the clip in the large size, and the toner cartridge driving gear for mounting the clip in the large size are respectively provided.
As shown in fig. 1 to 4, the invention provides a driving gear with a universal clamping groove, which comprises a gear body 1 and a cylinder 2 axially protruding from the outer end surface of the gear body 1, wherein the cylinder 2 is provided with coaxial stepped holes from the outer end surface to the inner part, the stepped holes comprise a stepped small hole positioned at the lower part of the cylinder 2 and a stepped large hole positioned at the upper part, the connecting plane of the stepped small hole and the stepped large hole is a stepped plane 3, a first mounting clamping groove 4 is arranged inside the stepped large hole, and a second mounting clamping groove 5 is arranged inside the stepped small hole.
In this embodiment, the first mounting slot 4 includes a pair of first positioning blocks 41 distributed in a central symmetry manner, the first positioning blocks 41 extend from the stepped plane 3 to the outer end face of the cylinder 2 and are connected to the inner side surface of the stepped large hole, the first positioning blocks 41 are close to a fan-ring shape, one side of the first positioning blocks 41 is a plane perpendicular to the stepped plane 3, and the other side of the first positioning blocks 41 is a slope surface transitioning to the stepped plane 3 through an arc.
In this embodiment, the second mounting slot 5 includes a pair of second positioning blocks 51 distributed in a central symmetry manner, the second positioning blocks 51 extend from the bottom plane of the stepped hole to the stepped plane 3 and are connected to the inner side surface of the stepped hole, the second positioning blocks 51 are approximately in a fan-ring shape, and one side of the second positioning blocks 51 is a plane perpendicular to the bottom of the stepped hole, and the other side of the second positioning blocks 51 is a slope surface in which an arc is transited to the bottom of the stepped hole.
The plane of the bottom of the stepped hole is the same as the end face of the outer end of the gear body 1, and the plane end face of the second positioning block 51 is parallel to the plane end face of the first positioning block 41.
In this embodiment, a positioning column 411 extends upward and vertically at a position where the outer end surface of the first positioning block 41 is connected to the plane end surface, and the outer end surface of the positioning column 411 extends out of the outer end surface of the cylinder 2.
Be equipped with reference column 411 on locating piece 41, this structure is according to the printer drive gear of small-size installation checkpost to go the design, as shown in fig. 5, in the current structure, the symmetry is equipped with little mounting groove on the left and right sides of installation checkpost, because in this embodiment, reference column 411 on locating piece 41 is connected with this mounting groove cooperation, plays spacing effect, improves the assembly reliability.
In this embodiment, a radial arc groove 6 is formed at a connection position of the positioning column 411 and the positioning block 41.
In this embodiment, the gear on the gear body 1 is a straight gear or a helical gear, and the specification of the gear is selected according to the developing gear and the stirring rod gear engaged with the driving gear.
In the embodiment, the diameter of the cylinder 2 is not larger than the diameter of the root circle of the gear body 1, and a positioning step 7 is formed at the joint of the cylinder 2 and the gear body 1. The driving gear is arranged on a toner cartridge shell and is arranged from the inside of the toner cartridge shell, the positioning step 7 is abutted to the inner side of the shell, the inside of the gear body 1 is positioned in the toner cartridge shell and is in meshed connection with a developing gear and a stirring rod gear in the toner cartridge, and the upper end of the cylinder 2 extends out of the toner cartridge shell and is connected with a driving gear on a printer in a clamping mode.
The invention provides two mounting modes:
the first is the clamping connection of the toner cartridge provided with the driving gear of the invention and the printer driving gear provided with the small-sized mounting clip, namely the printer driving gear shown in fig. 5 is connected with the invention in a matching way, the small-sized clip on the upper part of the printer driving gear slides into the groove along the slope surface on the second positioning block 51, at the moment, the small-sized mounting clip is connected with the second mounting slot of the driving gear in a clamping way, and the positioning column 411 on the first positioning block 41 is just clamped into the small mounting slots on the two sides of the small-sized mounting clip to play a limiting role together, and the printer drives the gear to rotate, so that the driving gear on the toner cartridge can be driven to rotate the toner hopper.
The second is the clamping connection of the toner cartridge provided with the driving gear and the printer driving gear provided with the large-size mounting clip, the large-size mounting clip is connected with the first mounting clamping groove of the driving gear in a clamping manner, the outer end face of the large-size mounting clip is attached to the outer end face of the connecting ring on the driving gear, the large-size mounting clip is clamped and positioned in a space formed by the two first positioning blocks 41, the stepped plane 3 and the cylinder, and the printer drives the gear to rotate so as to drive the driving gear on the toner cartridge to drive the powder bin to rotate.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent structures made by using the contents of the specification and the drawings of the present invention or directly or indirectly applied to other related technical fields are included in the scope of the present invention.