CN116021900B - Horizontal key-grid-jumping double-roller seal center shaft - Google Patents
Horizontal key-grid-jumping double-roller seal center shaft Download PDFInfo
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- CN116021900B CN116021900B CN202310073652.7A CN202310073652A CN116021900B CN 116021900 B CN116021900 B CN 116021900B CN 202310073652 A CN202310073652 A CN 202310073652A CN 116021900 B CN116021900 B CN 116021900B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The invention relates to a horizontal key lattice-jumping double-roller seal center shaft, which belongs to the technical field of roller seals and comprises a button, a guide wheel, a rotary roller, a spacer and a driving shaft, wherein the guide wheel is connected with the rotary roller through the spacer, the axis of the guide wheel is overlapped with the axis of the rotary roller, the bottom of the button is positioned in the guide wheel and is connected with the guide wheel, the driving shaft is positioned in the rotary roller and is connected with the rotary roller, the bottom of the button is abutted with the top of the driving shaft, the driving shaft is pushed by the button, and the driving shaft drives the rotary roller to rotate.
Description
Technical Field
The invention belongs to the technical field of roller seals, and particularly relates to a transverse key lattice-jumping double-roller seal center shaft.
Background
When the teaching of the arithmetic is carried out, a teacher is required to issue questions according to the arithmetic operation method, so that the teaching of the students is convenient, however, most of the situations need to issue questions by the teacher, the problems are very troublesome and time is wasted, most of the same situations of the arithmetic questions are easy to occur under the situation that the teacher issues the questions by himself, or the questions are caused to be consistent by the rules of convenience, the answers are basically consistent, the teaching of the students is not facilitated, and the double-roller seal can change the printing content by adjusting the relative positions of the double rollers, so that the teaching of the students is often used for printing simple mathematical operation questions for the toddlers. Can help teacher to quickly arrange exercise questions in class, and also help parents to guide lessons for children.
For example, chinese patent publication No. CN216993646U discloses a coaxial double-roller seal, including shell and seal cover, shell and seal cover movable block, roller mechanism includes first roller seal and second roller seal, the both ends of first roller seal are connected with one side inner wall and the spacer rotation of shell respectively, the spacer is kept away from and is connected with the turning block in the rotation between one side of first roller seal and the opposite side inner wall of shell.
The coaxial double-roller seal is characterized in that Arabic numerals and operation symbols are arranged on the first roller seal and the second roller seal, so that when the first roller seal and the second roller seal roll on the surface of paper at the same time, the numerals and the operation symbols are printed on the paper surface to form an arithmetic question. The first roller seal and the second roller seal can be rotated through the first rotary adjusting knob and the second rotary adjusting knob so as to change the corresponding relation of numbers on the two adjacent roller seals, thereby generating a plurality of groups of mathematical operation questions. However, the seal is also required to twist in opposite directions by respectively operating the knobs on two sides through two hands, the twisting times are increased along with the increase of the number of questions, a longer interval exists between two adjacent twists, the problem that a user forgets the previous twisting direction and repeated questions are caused easily occurs. In addition, when the seal is used, the seal is required to be held by one hand to roll through the paper surface, and when the number is adjusted, two hands are required to be used, so that the hand-changing operation is inconvenient, and the contact between the hand and the roller seal is easy to pollute the hand or the paper.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides the middle shaft of the transverse key-jumping double-roller seal, which solves the problem that the prior seal is easy to forget to adjust whether to turn last time or turn next time to cause repeated problems and the problem that the action of pulling two hands relatively to form a new calculation problem is troublesome under the condition of repeated problems for a long time.
The aim of the invention can be achieved by the following technical scheme: the utility model provides a horizontal button jump two gyro wheel seal axis, includes button, leading wheel, rotatory gyro wheel, spacer and drive shaft, the leading wheel passes through the spacer with rotatory gyro wheel and is connected, the axis of leading wheel overlaps with the axis of rotatory gyro wheel, the bottom of button is located the leading wheel and is connected with the leading wheel, the drive shaft is located rotatory gyro wheel and is connected with rotatory gyro wheel, the bottom of button and the top butt of drive shaft, the push button pushes away the drive shaft, the drive shaft drives rotatory gyro wheel and rotates.
This horizontal button is jumped two gyro wheel seal axis of check, through button extrusion drive shaft, the drive shaft is rotating at the rotatory gyro wheel of drive and is accomplished the dislocation of jumping the check, the drive shaft can promote the reverse direction rotation of leading wheel toward rotatory gyro wheel direction of rotation when resetting, can accomplish the relative jump of one time of two gyro wheel seals through pressing the button, let the calculation problem that two gyro wheel seals formed can be changed, it forgets easily to be last time changeing in the regulation under the circumstances of long-time repeated problem of putting out, or the next time is turned over and is led to the problem of repeated problem and the action that both hands pulled out relatively to form new calculation problem this action also comparatively troublesome problem.
As a preferable technical scheme of the invention, the bottom of the button is provided with a plurality of bevel gears, the top of the driving shaft is provided with a first bevel table, the bevel gears push the first bevel table to move horizontally and vertically when the button extrudes the driving shaft, the first bevel table moves horizontally to drive the driving shaft to rotate, and the driving shaft drives the rotating roller to rotate.
As a preferable technical scheme of the invention, the inner wall surface of the rotary roller is provided with a guide strip, a first limit groove is formed on one side wall surface of the driving shaft, and the guide strip is positioned in the first limit groove and is abutted with the first limit groove.
As a preferable technical scheme of the invention, the inner wall surface of the guide wheel is provided with a second inclined platform, the first inclined platform pushes the second inclined platform to move horizontally and vertically when the driving shaft is reset, and the second inclined platform moves horizontally to drive the guide wheel to rotate.
As a preferable technical scheme of the invention, the inner wall surface of the guide wheel is provided with a second limit groove, and one side wall surface of the button is provided with a guide block which is fixed in the second limit groove.
As a preferable technical scheme of the invention, a spring is arranged between the driving shaft and the rotary roller, and two ends of the spring are respectively abutted with the driving shaft and the rotary roller.
As a preferable technical scheme of the invention, the inner wall surface of the spacer is provided with an inner spacer ring, and the outer wall surface of the spacer is provided with an outer spacer ring.
As a preferable technical scheme of the invention, the inner wall surface of the guide wheel is also provided with a sleeve, and the button is positioned in the sleeve.
As a preferable technical scheme of the invention, a first limit strip is arranged on the surface of one side wall of the guide wheel.
As a preferable technical scheme of the invention, a second limit strip is arranged on the surface of one side wall of the rotary roller.
The beneficial effects of the invention are as follows: through the extrusion button, let the skewed tooth of button bottom promote the drive shaft rotate and drive rotatory gyro wheel and rotate and accomplish rotatory gyro wheel's one time jump check, simultaneously under the in-process that the drive shaft reset under the effect of spring, the first sloping platform at drive shaft top promotes the second sloping bench rotation on the leading wheel, accomplish the rotation of leading wheel according to this, can accomplish the change to the calculation problem that two gyro wheel seals formed through the extrusion button, avoided simultaneously because the long-time repeated problem of putting out adopts both hands to stir the mode of knob relatively and lead to forgetting the rotation direction when keeping in mind last time and make the condition emergence of repeatedly putting out the problem, the action of extrusion button is also convenient and handy than the both hands relatively stir the mode of knob come moreover.
Drawings
The present invention is further described below with reference to the accompanying drawings for the convenience of understanding by those skilled in the art.
FIG. 1 is a perspective view of the present invention;
FIG. 2 is an exploded view of the present invention;
FIG. 3 is a schematic view of a push button squeeze drive shaft of the present invention;
FIG. 4 is a schematic view of a button structure according to the present invention;
FIG. 5 is a schematic view of a guide wheel structure according to the present invention;
FIG. 6 is a schematic view of a rotary roller structure according to the present invention;
FIG. 7 is a schematic view of a spacer structure according to the present invention;
FIG. 8 is a schematic view of the structure of the driving shaft of the present invention;
description of the main reference signs
In the figure: 1. a button; 11. helical teeth; 12. a guide block; 2. a guide wheel; 21. a second ramp; 22. the second limit groove; 23. a sleeve; 24. a first limit bar; 3. rotating the roller; 31. a guide bar; 32. the second limit bar; 4. a spacer; 41. an inner spacer ring; 42. an outer spacer ring; 5. a drive shaft; 51. a first ramp; 52. a first limit groove; 6. and (3) a spring.
Detailed Description
In order to further describe the technical means and effects adopted by the invention for achieving the preset aim, the following detailed description is given below of the specific implementation, structure, characteristics and effects according to the invention with reference to the attached drawings and the preferred embodiment.
Referring to fig. 1-8, the embodiment provides a horizontal key-jumping double-roller seal center shaft, which comprises a button 1, a guide wheel 2, a rotary roller 3, a spacer 4 and a driving shaft 5, wherein the spacer 4 is positioned between the guide wheel 2 and the rotary roller 3, two ends of the spacer 4 are respectively connected with the guide wheel 2 and the rotary roller 3, the guide wheel 2 and the rotary roller 3 are of cylindrical structures, ports of the guide wheel 2 and ports of the rotary roller 3 are respectively sleeved on flanges at two sides of the spacer 4, coaxial connection of the guide wheel 2 and the rotary roller 3 is realized, the guide wheel 2 and the rotary roller 3 are ensured to rotate independently, one end of the button 1 is embedded into the guide wheel 2, the other end of the button protrudes out of the end face of the guide wheel 2, and the driving shaft 5 is embedded into the rotary roller 3.
Two roller stamp main bodies in the existing double roller stamp are respectively sleeved on the guide wheel 2 and the rotary roller 3. Each roller stamp is provided with digital stamps on the periphery of the roller stamp. The two roller seals are rotated relatively by rotating the guide wheel 2 and the rotary roller 3, so that the corresponding relation of numbers on the two roller seals is changed, the combination of the numbers is changed, and the mathematic operation questions are recombined. The operation of printing questions in batches is convenient.
The middle shaft of the seal replaces the existing middle shaft of the seal, a circle of rollers are arranged outside the middle shaft of the seal, and the rollers are driven to roll through the middle shaft of the seal, so that the seal oil on the rollers is printed on paper to form preset calculation questions.
Meanwhile, in order to ensure that the calculated questions cannot cause the problem that students reduce the exercise efficiency due to excessive repeated questions in the exercise process because of repeated questions. The existing double-roller seal adopts a knob which is twisted in the opposite direction to rotate the center shaft of the seal, the twisting times are increased, a longer interval exists between two adjacent twists, the problem that a user forgets the previous twisting direction can occur easily, and the problem of repeated problems can occur. When the number on the double-roller seal is required to be changed to form a new calculation question, the middle shaft of the transverse key grid-jumping double-roller seal only needs to push the button 1 to push the driving shaft 5, the driving shaft 5 drives the rotary roller 3 to rotate once, when the button 1 is released, the driving shaft 5 drives the guide wheel 2 to rotate once in the reverse rotation direction of the rotary roller 3 in the resetting process, so that the double-roller seal can form the new calculation question, the calculation question of the seal is changed in a mode of pressing the button 1, the situation that the rotation direction of the last roller is forgotten in the long-time question setting process and the rotation time of the roller is excessive due to excessive force during twisting is avoided, and the mode of pressing the button 1 is more convenient and handy than the mode of relatively poking the knob.
In order to enable the driving shaft 5 to rotate when the button 1 is pressed, in this embodiment, a plurality of helical teeth 11 are arranged at the bottom of the button 1, a first helical table 51 is arranged at the top of the driving shaft 5, when the button 1 is pressed, the upper end of the first helical table 51 at the top of the driving shaft 5 is contacted with the lower end of the helical teeth 11 at the bottom of the button 1, the helical teeth 11 push the first helical table 51 to move along the inclined plane direction of the helical teeth 11 in the pressing process of the button 1, at the moment, the first helical table 51 generates a vertical and horizontal displacement because of the inclined planes of the helical teeth 11, the driving shaft 5 is connected with the rotary roller 3, the rotary roller 3 is connected on the spacer 4, so that the horizontal displacement of the first helical table 51 is converted into the rotary displacement of the driving shaft 5, the driving shaft 5 drives the rotary roller 3 to rotate, the calculation problem on the seal can be changed by pressing the button 1, and the first helical table 51 on the driving shaft 5 is uniformly provided with a plurality of helical teeth 11 at the top of the driving shaft 5 in the pressing process, at the moment, the helical teeth 11 at the bottom of the button 1 are uniformly arranged at the bottom of the button 1, the time of the helical teeth 11 are uniformly pressed, the helical teeth 11 are pressed down in the corresponding to the first helical teeth 11, the number is changed, and the number is changed by pressing the helical teeth 11, and the number is changed by pressing the helical teeth 11 at the bottom of the first helical table 11, and the rotary roller 3 is completely.
In order to enable the rotary roller 3 to rotate under the driving of the driving shaft 5, in an embodiment, a guide bar 31 is disposed on the inner wall surface of the rotary roller 3, a first limit groove 52 is disposed on one side wall surface of the driving shaft 5, the guide bar 31 is disposed in the first limit groove 52, the guide bar 31 is fixed through the first limit groove 52, and in the process of rotating the driving shaft 5, since the guide bar 31 is fixed in the first limit groove 52, the rotary roller 3 can rotate along with the driving shaft 5, and when the button 1 presses the driving shaft 5 to rotate, the driving shaft 5 can drive the rotary roller 3 to rotate together, so that the rotary roller 3 can rotate to change the number of the seal to change the calculation question.
In order to enable the guide wheel 2 to rotate to change the number of the seal, in an embodiment, the second inclined table 21 is arranged on the inner wall surface of the guide wheel 2, the first inclined table 51 pushes the second inclined table 21 to move horizontally and vertically when the driving shaft 5 is reset, after the driving shaft 5 is pressed by the button 1 to drive the rotary roller 3 to rotate, after the button 1 is released, the top of the first inclined table 51 of the driving shaft 5 presses the top of the second inclined table 21 in the reset process, the second inclined table 21 is horizontally displaced under the pressing of the first inclined table 51, the horizontal displacement of the second inclined table 21 is converted into the rotation of the guide wheel 2 as in the principle that the driving shaft 5 is pressed by the button 1, the guide wheel 2 can rotate in the reset process of the driving shaft 5 to change the number of the seal, and the rotation direction of the guide wheel 2 is different from the rotation direction of the rotary roller 3 because the inclined direction of the second inclined table 21 is opposite to the direction of the first inclined table 51, so that a new calculation problem can be formed.
In order to enable the button 1 to drive the driving shaft 5 to rotate in the next pressing process, in an embodiment, the inner wall surface of the guide wheel 2 is provided with a second limit groove 22, a guide block 12 is arranged on one side wall surface of the button 1, the guide block 12 is fixed in the second limit groove 22, in the resetting process of the driving shaft 5, the driving shaft 5 enables the guide wheel 2 to rotate, and the button 1 rotates along with the guide wheel 2 because the second limit groove 22 and the guide block 12 are fixed, so that the helical teeth 11 at the bottom of the button 1 are staggered with the first inclined platform 51 of the driving shaft 5, the bottom ends of the helical teeth 11 can be opposite to the top ends of the first inclined platform 51, and when the button 1 is pressed again, the helical teeth 11 can squeeze the first inclined platform 51 to drive the driving shaft 5 to rotate, and the button 1 can enable the driving shaft 5 to rotate in each pressing process.
In order to enable the driving shaft 5 to automatically reset after the button 1 is released, in an embodiment, a spring 6 is arranged between the driving shaft 5 and the rotary roller 3, two ends of the spring 6 are respectively abutted against the driving shaft 5 and the rotary roller 3, in the process that the button 1 extrudes the driving shaft 5, the driving shaft 5 can horizontally and vertically displace, the horizontal displacement is converted into rotation of the driving shaft 5 to drive the rotary roller 3 to rotate, the driving shaft 5 extrudes the spring 6 to generate elastic potential energy, after the button 1 is released, the driving shaft 5 is reset due to the elastic potential energy of the spring 6, the first inclined table 51 of the driving shaft 5 can push the second inclined table 21 of the guide wheel 2, the guide wheel 2 rotates to drive the button 1 to rotate, the button 1 can continuously complete the pushing action of the driving shaft 5 to rotate in the next pressing process, the driving shaft 5 can automatically reset after the button 1 is pressed through the spring 6, and the next pressing is facilitated.
In order to prevent the two-roller seal from interfering with each other when changing the calculation questions on the seal, in an embodiment, the outer wall surface of the spacer 4 is provided with an outer spacer ring 42, and the seals mounted on the guide wheel 2 and the rotary roller 3 can be separated from each other by arranging the outer spacer ring 42 on the outer wall surface of the spacer 4, so that one of the seals cannot rotate due to too close separation when rotating in the process of changing the seal number, and the seal surface has burrs to drive the other seal to rotate when rotating, which can lead the seal to be rotated again to the original position by the other seal after rotating, and the outer spacer ring 42 can solve the problem, and meanwhile, the position of the driving shaft 5 is limited by the inner spacer ring 41, so that the driving shaft 5 cannot deviate in the moving process, and the driving shaft 5 cannot rotate in the resetting process, so that the next pressing of the button 1 cannot lead the rotary roller 3 to rotate, and the seal cannot form a new calculation question.
In order to prevent the button 1 from being deviated during the pressing process, in an embodiment, the inner wall surface of the guide wheel 2 is further provided with a sleeve 23, the button 1 is located in the sleeve 23, the sleeve 23 is used for limiting the position of the button 1 by arranging the sleeve 23 on the inner wall surface of the guide wheel 2, the button 1 can be smoothly pressed through the sleeve 23 during the pressing process of the button 1, deflection cannot occur during the pressing process, and the situation that the contact point of the helical tooth 11 and the first helical table 51 is wrong, so that the rotation of the driving shaft 5 is not in place, and the number on the seal is not changed occurs.
In order to enable the seal mounted on the guide wheel 2 to rotate along with the rotation of the guide wheel 2, in one embodiment, a first limit bar 24 is arranged on the surface of one side wall of the guide wheel 2, and the seal mounted on the guide wheel 2 is fixed through the first limit bar 24, so that the seal can rotate along with the rotation of the guide wheel 2 during the rotation, and the condition of changing the number on the seal is achieved.
Similarly, in order to enable the seal mounted on the rotary roller 3 to rotate along with the rotation of the rotary roller 3, in an embodiment, a second limiting bar 32 is disposed on a side wall surface of the rotary roller 3, and the second limiting bar 32 is fixed to the seal mounted on the rotary roller 3 like the first limiting bar 24, so as to achieve the situation of changing the number on the seal.
The present invention is not limited to the above embodiments, but is capable of modification and variation in detail, and other modifications and variations can be made by those skilled in the art without departing from the scope of the present invention.
Claims (7)
1. The utility model provides a horizontal button jump check double roller seal axis which characterized in that: the automatic push-button device comprises a push button (1), a guide wheel (2), a rotary roller (3), a spacer (4) and a driving shaft (5), wherein the guide wheel (2) is connected with the rotary roller (3) through the spacer (4), the axis of the guide wheel (2) and the axis of the rotary roller (3) are overlapped, the bottom of the push button (1) is positioned in the guide wheel (2) and is connected with the guide wheel (2), the driving shaft (5) is positioned in the rotary roller (3) and is connected with the rotary roller (3), the bottom of the push button (1) is abutted with the top of the driving shaft (5), and the driving shaft (5) is pushed by the push button (1) to drive the rotary roller (3) to rotate;
the bottom of the button (1) is provided with a plurality of bevel gears (11), the top of the driving shaft (5) is provided with a first bevel table (51), the bevel gears (11) push the first bevel table (51) to move horizontally and vertically when the button (1) extrudes the driving shaft (5), the first bevel table (51) horizontally moves to drive the driving shaft (5) to rotate, and the driving shaft (5) drives the rotating roller (3) to rotate;
the inner wall surface of the guide wheel (2) is provided with a second inclined table (21), the first inclined table (51) pushes the second inclined table (21) to move horizontally and vertically when the driving shaft (5) is reset, and the second inclined table (21) moves horizontally to drive the guide wheel (2) to rotate;
a spring (6) is arranged between the driving shaft (5) and the rotary roller (3), and two ends of the spring (6) are respectively abutted with the driving shaft (5) and the rotary roller (3).
2. The horizontal key grid-jumping double roller seal center shaft according to claim 1, wherein: the inner wall surface of the rotary roller (3) is provided with a guide strip (31), a first limit groove (52) is formed in one side wall surface of the driving shaft (5), and the guide strip (31) is located in the first limit groove (52) and is abutted to the first limit groove (52).
3. The horizontal key grid-jumping double roller seal center shaft according to claim 1, wherein: the inner wall surface of the guide wheel (2) is provided with a second limit groove (22), one side wall surface of the button (1) is provided with a guide block (12), and the guide block (12) is fixed in the second limit groove (22).
4. The horizontal key grid-jumping double roller seal center shaft according to claim 1, wherein: the inner wall surface of the spacer (4) is provided with an inner spacer ring (41), and the outer wall surface of the spacer (4) is provided with an outer spacer ring (42).
5. The horizontal key grid-jumping double roller seal center shaft according to claim 1, wherein: the inner wall surface of the guide wheel (2) is also provided with a sleeve (23), and the button (1) is positioned in the sleeve (23).
6. The horizontal key grid-jumping double roller seal center shaft according to claim 1, wherein: a first limit strip (24) is arranged on the surface of one side wall of the guide wheel (2).
7. The horizontal key grid-jumping double roller seal center shaft according to claim 1, wherein: a second limit strip (32) is arranged on the surface of one side wall of the rotary roller (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310073652.7A CN116021900B (en) | 2023-02-07 | 2023-02-07 | Horizontal key-grid-jumping double-roller seal center shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310073652.7A CN116021900B (en) | 2023-02-07 | 2023-02-07 | Horizontal key-grid-jumping double-roller seal center shaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116021900A CN116021900A (en) | 2023-04-28 |
| CN116021900B true CN116021900B (en) | 2023-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310073652.7A Active CN116021900B (en) | 2023-02-07 | 2023-02-07 | Horizontal key-grid-jumping double-roller seal center shaft |
Country Status (1)
| Country | Link |
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| CN (1) | CN116021900B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0715350U (en) * | 1993-08-27 | 1995-03-14 | 株式会社ミドリ | Revolving stamp |
| KR20110084095A (en) * | 2010-01-15 | 2011-07-21 | 프라스 가부시키가이샤 | Stamping device |
| CN104856868A (en) * | 2015-02-13 | 2015-08-26 | 上海荣泰健康科技股份有限公司 | Foot massage device |
| JP2015223722A (en) * | 2014-05-26 | 2015-12-14 | 日本曹達株式会社 | stamp |
| CN217778168U (en) * | 2022-07-21 | 2022-11-11 | 衡水祺星文具有限公司 | Roller type teaching seal |
| CN115593128A (en) * | 2022-10-27 | 2023-01-13 | 得力集团有限公司（Cn） | Double-roller printing core and seal comprising same |
| CN115593127A (en) * | 2022-10-27 | 2023-01-13 | 得力集团有限公司（Cn） | Three-roller printing core and seal comprising same |
-
2023
- 2023-02-07 CN CN202310073652.7A patent/CN116021900B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0715350U (en) * | 1993-08-27 | 1995-03-14 | 株式会社ミドリ | Revolving stamp |
| KR20110084095A (en) * | 2010-01-15 | 2011-07-21 | 프라스 가부시키가이샤 | Stamping device |
| JP2015223722A (en) * | 2014-05-26 | 2015-12-14 | 日本曹達株式会社 | stamp |
| CN104856868A (en) * | 2015-02-13 | 2015-08-26 | 上海荣泰健康科技股份有限公司 | Foot massage device |
| CN217778168U (en) * | 2022-07-21 | 2022-11-11 | 衡水祺星文具有限公司 | Roller type teaching seal |
| CN115593128A (en) * | 2022-10-27 | 2023-01-13 | 得力集团有限公司（Cn） | Double-roller printing core and seal comprising same |
| CN115593127A (en) * | 2022-10-27 | 2023-01-13 | 得力集团有限公司（Cn） | Three-roller printing core and seal comprising same |
Non-Patent Citations (1)
| Title |
|---|
| 学生证自动盖章机设计;李占贤;田月;张雅琛;闫硕;王宁;;华北理工大学学报(自然科学版)(第03期);全文 * |
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| Publication number | Publication date |
|---|---|
| CN116021900A (en) | 2023-04-28 |
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