CN201745256U - Gear box cover and gear box body matching structure of thermal printer core - Google Patents
Gear box cover and gear box body matching structure of thermal printer core Download PDFInfo
- Publication number
- CN201745256U CN201745256U CN2010202839649U CN201020283964U CN201745256U CN 201745256 U CN201745256 U CN 201745256U CN 2010202839649 U CN2010202839649 U CN 2010202839649U CN 201020283964 U CN201020283964 U CN 201020283964U CN 201745256 U CN201745256 U CN 201745256U
- Authority
- CN
- China
- Prior art keywords
- gear box
- box cover
- gear
- clamping groove
- groove
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- General Details Of Gearings (AREA)
Abstract
The utility model discloses a gear box cover and gear box body matching structure of a thermal printer core. A chamber for gears to be matched mutually is formed by a gear box cover and a gear box body. The lower part of the position at which the gear box body is correspondingly matched with the gear box cover is provided with a radial clamping groove. The bottom of the gear box cover is provided with a buckle corresponding to the clamping groove. The side wall of the gear box body, corresponding to the gear box cover, is provided with an axial clamping groove. The side wall of the gear box cover is provided with a bulge corresponding to the axial clamping groove. The matching of the one-way buckle and the radial clamping groove prevents the gear box gear from moving left and right and the matching of the bulge and the axial clamping groove prevents the gear box cover from being twisted up and down so as to realize rigid fixing of the gear box cover. When in actual use, the structure can effectively prevent pressure damage caused by gear malposition in the process that a printing roller is positioned downwards and improves the safety of a gear box transmission system so as to effectively prolong the service life of a printer.
Description
Technical field
The utility model is about a kind of thermal printer, is meant a kind of gear box cover and gear housing fit structure of thermal printing movement especially.
Background technology
Cooperate shown in Fig. 1,2, the thermal printing movement of present fast-assembling paper structure on the market, particularly 2 inches, 3 inches thermal printing movements, the oblique angle approaching face 11 ', 21 ' that all has gear housing 1 ' and gear box cover 2 ', when gear 3 ' was packed gear-box into, approaching face 11 ' and approaching face 21 ' imported gear 3 ', make it slip into the tram, avoid gear 3 ' to strike the left and right side projection, thereby avoid gear 3 to produce crushing.But thermal printer core gear case lid 2 ' does not on the market all have the rigidity location at present, it is the location that only has radially a buckle 22 ' and draw-in groove 12 ' between gear box cover 2 ' and the gear housing 1 ', then when gear 3 ' is pressed into gear housing 1 ', gear box cover 2 ' can upwards reverse in stressed generation, causes approaching face 21 ' correctly to import and cause gear 3 ' crushing gear 3 '.
The utility model content
The purpose of this utility model is to provide a kind of and prolongs the printer gear life, can realize the gear box cover and the gear housing fit structure of thermal printing movement of the rigidity location of gear box cover.
For achieving the above object, solution of the present utility model is:
A kind of gear box cover of thermal printing movement and gear housing fit structure, wherein gear box cover is formed with the cavity volume that cooperates for gear with gear housing, the bottom of gear housing corresponding gear case lid cooperation place is formed with radially draw-in groove, to being provided with buckle in the bottom of gear box cover by draw-in groove; Wherein: on the sidewall of gear housing corresponding gear case lid, be formed with axial draw-in groove, axial draw-in groove is formed with protruding grain on the side ancient piece of jade, round, flat and with a hole in its centre of gear box cover.
Buckle on the described gear box cover is unidirectional buckle.
Adopt such scheme, when gear box cover of the present utility model cooperated with gear housing, the unidirectional buckle of gear box cover was to be connected in the radially draw-in groove of gear housing; The protruding grain of gear box cover just is connected in the axial draw-in groove of gear housing, herein, unidirectional buckle is the move left and right that prevents gear box cover with cooperating of draw-in groove radially, and protruding grain is to prevent that gear box cover from reversing up and down with axial cooperating of draw-in groove, thus the rigidly fixing of realization gear box cover.Such structure is printed the crushing that can prevent effectively in the downward location process of roller bearing that gear dislocation from causing when reality is used, the security that has improved the gearbox drive system, and then can effectively improve printer service life.
Description of drawings
Fig. 1 is pack into the procedure chart of gear housing of prior art gear;
Fig. 2 is pack into the figure that finishes of gear housing of prior art gear;
Fig. 3 is the decomposing schematic representation of the utility model gear box cover and gear housing;
Fig. 4 is that Fig. 1 is finished in the assembling of the utility model gear box cover and gear housing;
Fig. 5 is that Fig. 2 is finished in the assembling of the utility model gear box cover and gear housing;
The specific embodiment
Shown in Fig. 3,4,5, the utility model has disclosed a kind of gear box cover and gear housing fit structure of thermal printing movement, gear box cover 2 is formed with the cavity volume that cooperates for gear with gear housing 1, (this is prior art simultaneously to be convenient to inclined-plane that gear imports in formation, do not describe in detail at this), wherein the bottom of these gear housing 1 corresponding gear case lid 2 cooperation places is formed with radially draw-in groove 11, to being provided with a unidirectional buckle 21 in the bottom of gear box cover 2 by draw-in groove 11; Key of the present utility model is:
On the sidewall of gear housing 1 corresponding gear case lid 2, be formed with axial draw-in groove 12, axial draw-in groove 12 is formed with protruding grain 22 on the side ancient piece of jade, round, flat and with a hole in its centre of gear box cover 2.
When gear box cover 2 cooperated with gear housing 1, the unidirectional buckle 21 of gear box cover 2 was to be connected in the radially draw-in groove 11 of gear housing 1; Meanwhile, the protruding grain 22 of gear box cover 2 just is connected in the axial draw-in groove 12 of gear housing 1.Herein, unidirectional buckle 21 is the move left and right that prevents gear box cover 2 with cooperating of draw-in groove 11 radially, and protruding grain 22 is to prevent that gear box cover 2 from reversing up and down with axial cooperating of draw-in groove 12, thus the rigidly fixing of realization gear box cover 2.
This realization just is with novel emphasis: increase the radially protruding grain 22 of gear box cover 2, prevent gear box cover 2 move left and right, prevent that gear box cover from reversing up and down, thereby realize rigidly fixing of gear box cover.
Claims (2)
1. the gear box cover of a thermal printing movement and gear housing fit structure, wherein gear box cover is formed with the cavity volume that cooperates for gear with gear housing, the bottom of gear housing corresponding gear case lid cooperation place is formed with radially draw-in groove, to being provided with buckle in the bottom of gear box cover by draw-in groove; It is characterized in that: on the sidewall of gear housing corresponding gear case lid, be formed with axial draw-in groove, axial draw-in groove is formed with protruding grain on the side ancient piece of jade, round, flat and with a hole in its centre of gear box cover.
2. the gear box cover of thermal printing movement as claimed in claim 1 and gear housing fit structure is characterized in that: the buckle on the gear box cover is unidirectional buckle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202839649U CN201745256U (en) | 2010-08-03 | 2010-08-03 | Gear box cover and gear box body matching structure of thermal printer core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202839649U CN201745256U (en) | 2010-08-03 | 2010-08-03 | Gear box cover and gear box body matching structure of thermal printer core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201745256U true CN201745256U (en) | 2011-02-16 |
Family
ID=43579928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202839649U Expired - Lifetime CN201745256U (en) | 2010-08-03 | 2010-08-03 | Gear box cover and gear box body matching structure of thermal printer core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201745256U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107531062A (en) * | 2015-07-31 | 2018-01-02 | 惠普发展公司有限责任合伙企业 | printer gear device |
-
2010
- 2010-08-03 CN CN2010202839649U patent/CN201745256U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107531062A (en) * | 2015-07-31 | 2018-01-02 | 惠普发展公司有限责任合伙企业 | printer gear device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201745256U (en) | Gear box cover and gear box body matching structure of thermal printer core | |
| CN201437047U (en) | Solar toy car | |
| CN202621642U (en) | Corner armor annular strip shaping mechanism for packaging steel coil | |
| CN205400297U (en) | Lock core | |
| CN201035326Y (en) | Printers charge roller | |
| CN203197246U (en) | Sintered NdFeB tile-shaped mould | |
| CN202805963U (en) | Seal control device with code | |
| CN203306485U (en) | Novel anticorrosion bearing box | |
| CN202144705U (en) | Door leaf structure of antitheft safe door | |
| CN201761850U (en) | Rotary cover plate type flange manhole with cover shaft check block | |
| CN202938965U (en) | Balancing tool for clutch assembly and clutch pressure plate | |
| CN205519230U (en) | Mould on riveting with adsorb function | |
| CN203394183U (en) | Novel mortise lock head | |
| CN203600781U (en) | Novel shell structure of printer cartridge | |
| CN202380947U (en) | Door with celesta | |
| CN204215150U (en) | A kind of integral type easy powder filling cartridge end cap | |
| CN202847095U (en) | Movable type imprinting device for automobile cushion belt | |
| CN203637351U (en) | Device for fetching paper conveniently | |
| CN203658734U (en) | Powder box generally applied to HP1025 and HPM176/177 | |
| CN201736194U (en) | Assisting device for knocking in nails | |
| CN202358447U (en) | Easily-opened beverage bottle | |
| CN201841796U (en) | Double-headed pen | |
| CN201710192U (en) | Thermos flask capable of preventing bottle cork from flipping open | |
| CN201357632Y (en) | Pen convenient for adding ink | |
| CN202666443U (en) | Side-view mirror mechanism used for flash tank |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110216 |
|
| CX01 | Expiry of patent term |