CN209904280U

CN209904280U - Labor-saving seal

Info

Publication number: CN209904280U
Application number: CN201920197631.5U
Authority: CN
Inventors: 金世华; 金乐
Original assignee: Shenzhen Huahai Technology Research And Development Co Ltd
Current assignee: Shenzhen Huahai Technology Research And Development Co Ltd
Priority date: 2019-02-14
Filing date: 2019-02-14
Publication date: 2020-01-07
Anticipated expiration: 2029-02-14

Abstract

The utility model discloses a labor-saving seal, which comprises a seal die, a first seal seat or a second seal seat, a first stamp hammer or a second stamp hammer, a seal handle, a rotary disc, a first spring, a second spring or a fourth spring, a third spring and a retainer ring; when stamping is carried out, the stamping handle is pressed down, the first spring is compressed, the rotary disc releases the stamping hammer to quickly impact the stamping seat, the inertia force of the stamping hammer is superposed with the pressure of a human hand, and the effect that the human hand applies small pressure on the stamping handle to enable the stamping die to obtain large stamping pressure is achieved.

Description

Labor-saving seal

Technical Field

The utility model relates to a seal technical field, concretely relates to laborsaving seal.

Background

A stamp is a stationery item that people use as a means of authenticating, approving, validating, marking, or signing on a document or article. When stamping, the seal and the file or the article need to have certain pressure to make the seal clear, and the calculation formula is as follows:

imprint pressure = imprint pressure/stamp area

From the above formula, when the stamping pressure is constant, the larger the stamp area is, the larger the required stamping pressure is, that is: the stamping pressure is proportional to the area of the stamp.

The common small-sized seal can be clearly stamped without too much force during stamping. The larger seal has a larger area, so that the seal cannot be clearly stamped with less force during stamping, and the seal can be clearly stamped by using larger force or two hands. Some workers who are dedicated to stamping stamp hundreds of times or even thousands of times per day, which may cause soreness of the wrist and arm, and arthritis and abnormal growth.

Therefore, it is an urgent need to develop a stamp that can be used with a small force to stamp a clear large stamp with a novel structure.

Disclosure of Invention

In view of this, the present invention provides a large-sized stamp with a novel structure, which can obtain a large stamping pressure between the stamp and a document or an article by applying a small pressure by a human hand during stamping.

In order to achieve the above object, the present invention provides two solutions,

the first scheme is as follows:

a labor-saving seal comprises a seal die, a first seal seat, a first stamp hammer, a seal handle, a rotary disc, a first spring, a second spring, a third spring and a retainer ring;

the die is provided with a working surface and a mounting surface; engraving required characters or patterns on the working surface of the stamp; the stamp is made of a stamp material;

the first seal seat is provided with a first seat bottom, a first excircle, a first step, a second excircle, a first guide surface, a second guide surface, a seat block, a second unsprung hole, a third guide surface, a fourth guide surface, a first inner bottom, a first top surface, a first inner circle, a third spring hole, a first stop pin and a first stop cap; the second outer circle is positioned above the first outer circle; the diameter of the second outer circle is larger than that of the first outer circle to form a first step; the diameter of the first inner circle is smaller than that of the first outer circle; the first inner circle is coaxial with the first outer circle and the second outer circle; a first guide surface and a second guide surface are arranged between the second outer circle and the first inner circle; the first guide surface and the second guide surface are parallel to the axis of the first inner circle; the number of the first guide surface and the second guide surface is at least one group; the first inner bottom is provided with at least two seat blocks which are distributed along the circumference of the first inner circle; a second unsprung hole, a third guide surface and a fourth guide surface are arranged on the seat block, and the depth of the second unsprung hole is smaller than the height of the seat block; the first top surface is provided with a first spring hole, the first spring hole is positioned between the first outer circle and the first inner circle in a circular arc shape, the depth of the first spring hole is smaller than the height of the first outer circle, and the number of the first spring holes is at least one; the first top surface is provided with a first stop pin and a first stop cap, the first stop pin and the first stop cap are coaxial, the first stop cap is arranged above the first stop pin, and the number of the first stop pin and the first stop cap is at least two;

the mounting surface of the die is fixedly connected with the first seat bottom of the first die seat.

The first stamp hammer is provided with a first hammer bottom, a first hammer column, a fifth guide surface, a sixth guide surface, a spring seat, a second spring upper hole, a first clamping plate, a first clamping surface, a first hammer hole, a second hammer hole, a first hammer bottom, a first hammer top, a first hammer notch and a limiting surface; the diameter of a first hammer column of the first stamp hammer is not larger than that of a first inner circle of the first stamp seat; the height of a first hammer column of the first stamp hammer is smaller than that of a first inner circle of the first stamp seat; the first hammer column of the first stamp hammer can axially slide in the first inner circle of the first stamp seat; the fifth guide surface is connected with the third guide surface of the first print seat in a sliding manner, the sixth guide surface is connected with the fourth guide surface of the first print seat in a sliding manner, and the number of the fifth guide surface and the number of the sixth guide surface are the same as that of the seat blocks of the first print seat; the second sprung hole is positioned below the spring seat and is coaxial with the second unsprung hole of the first print seat; the first clamping plates are positioned below the first hammer top, and the number of the first clamping plates is at least two; the first clamping surface is positioned below the first clamping plate; the first clamping surface is a parallel surface, an inclined surface or a spiral surface; the first hammer notches are positioned beside the first clamping plates, and the number of the first hammer notches is equal to that of the first clamping plates; the diameter of the first hammer hole is larger than that of the second hammer hole; the limiting surface is positioned above the spring seat and below the first clamping surface.

The printing handle is provided with a handle bottom surface, a handle inner circle, a handle convex block, a first spring upper hole, a first spring upper bottom, a guide cylindrical surface, a handle inner top, a handle part and a handle outer circle. The inner circle of the handle is not smaller than the second outer circle of the first print seat; the inner circle of the handle is sleeved on the second excircle of the first print seat and can axially move; the number of the handle convex blocks is the same as the number of the first guide surface and the second guide surface of the first print seat; the handle convex block is provided with a seventh guide surface, an eighth guide surface, a pushing surface and a handle notch, the seventh guide surface and the eighth guide surface are both parallel to the axis of the inner circle of the handle, the seventh guide surface is connected with the second guide surface of the first print seat in a sliding way, and the eighth guide surface is connected with the first guide surface of the first print seat in a sliding way; the handle notch is positioned in the middle of the handle convex block, and the eighth guide surface is positioned below the handle notch; the pushing surface is an inclined surface or a spiral surface and is positioned above the handle notch; the surface of the guide post is not larger than a first hammer hole of the first stamp hammer; the guide cylinder surface is axially movable in a first hammer hole of the first hammer; the diameter of the first sprung hole is equal to the diameter of the second hammer hole of the first hammer;

the rotary disc is provided with a disc bottom surface, a disc notch, a disc convex block, a second clamping surface, an arc-shaped groove, a reset hole, a disc top surface, a disc pushing surface, a disc chamfer, a disc excircle and a disc inner circle; the bottom surface of the tray is in contact with the first top surface of the first print seat; the bottom surface of the tray is parallel to the top surface of the tray; the disc notches are positioned on the outer circle of the disc, the depth of the disc notches is not less than the height of the handle convex blocks of the printing handle, and the number of the disc notches is the same as that of the handle convex blocks of the printing handle; a disc pushing surface is arranged on the disc notch, and a disc chamfer is arranged at the intersection of the disc top surface and the disc pushing surface; the disk lugs are positioned on the inner circle of the disk, and the number of the disk lugs is the same as that of the first clamping plates; the shape of the disk bump is smaller than that of the first hammer notch of the first stamp hammer; a second clamping surface is arranged on the disc bump; arc-shaped grooves are formed between the bottom surface of the plate and the top surface of the plate, and the number of the arc-shaped grooves is the same as that of the first stop pins of the first print seat; the arc-shaped groove is sleeved outside the first stop pin of the first print seat, so that the rotary disc can rotate around the axis of the rotary disc in a reciprocating manner; the thickness of the rotary disc is not more than the height of a first stop pin of the first print seat; the thickness of the rotary disc is not more than the axial size of a space between the first clamping plate and the limiting surface of the first stamp hammer; the second clamping surface is a parallel surface or an inclined surface or a spiral surface; when the second clamping surface is an inclined surface or a spiral surface, the inclination or spiral angle of the second clamping surface of the rotary disc is adapted to the inclination or spiral angle of the first clamping surface of the first stamp hammer; the oblique angle or the helical angle between the second clamping surface of the rotary disc and the first clamping surface of the first stamp hammer is smaller than the friction angle between the rotary disc and the first stamp hammer; the turntable is blocked by a first blocking cap of the first print seat and cannot fall off from a first blocking pin of the first print seat; reset holes are formed between the bottom surface and the top surface of the plate, and the number of the reset holes is the same as that of the third spring holes of the first seal seat; the diameter of the disc excircle is not more than the diameter of the handle inner circle of the printing handle; the diameter of the inner circle of the disc is not smaller than the diameter of a first hammer column of the first stamp hammer;

the first spring is positioned in a first spring upper hole of the printing handle and a second hammer hole of the first hammer, the top of the first spring is in contact with a first spring upper bottom of the printing handle, and the bottom of the first spring is in contact with a first hammer bottom of the first hammer;

the second spring is positioned in a second unsprung hole of the first stamp pad and a second sprung hole of the first stamp, the top of the second spring is in contact with the bottom of the second sprung hole of the first stamp, and the bottom of the second spring is in contact with the bottom of the second unsprung hole of the first stamp pad; the number of the second springs is equal to that of the second unsprung holes of the first print seat; the elasticity of the second spring is much smaller than the elasticity of the first spring.

The third spring is provided with a short side and a long side; the short edge of the third spring is completely installed in the third spring hole of the first print seat; the lower part of the long edge of the third spring is arranged in a third spring hole of the first print seat, and the upper part of the long edge of the third spring is arranged in a reset hole of the turntable; the number of the third springs is equal to that of the third spring holes of the first print seat;

the diameter of the outer circle of the retainer ring is equal to that of the outer circle of the handle of the printing handle; the diameter of the inner ring hole of the retainer ring is not smaller than the diameter of the first excircle of the first print seat; the top surface of the retainer ring is fixedly connected with the bottom surface of the handle of the printing handle.

Before the cover printing, the first spring, the second spring and the third spring are in an elastic opening state, the first print hammer is jacked up by the second spring, and the limiting surface of the first print hammer is in contact with the bottom surface of the rotary disc and cannot continuously rise to be at the highest position; the printing handle is jacked up by the first spring, and the ring top surface of the retainer ring is in contact with the first step of the first printing seat and cannot continuously rise to be positioned at the highest position; the rotary disc rotates anticlockwise under the action of the third spring, and a second clamping surface of the rotary disc is tightly attached to a first clamping surface of the first stamp hammer; the plate pushing surface and the plate chamfer of the rotary plate enter a handle notch of a handle convex block of the printing handle;

during stamping, the working surface of the stamp is placed on a position, needing stamping, of a document or an article, the handle part of the printing handle is held by a hand to press down the printing handle, the first spring is compressed, the pushing surface of the handle bump of the printing handle is not contacted with the disc pushing surface or the disc chamfer of the turntable, and the turntable does not rotate at the stage; the first hammer is also locked and fixed by the rotary disc.

And continuing to press the printing handle, continuing to compress the first spring, and pressing the pushing surface of the handle convex block of the printing handle to the disc pushing surface or the disc chamfer of the disc so as to rotate the rotary disc clockwise. When the turntable continues to rotate to enable the second clamping surface of the turntable to completely leave the first clamping surface of the first stamp hammer, the first stamp hammer loses the clamping of the turntable and moves downwards at a high speed under the action of the elastic force of the first spring until the first stamp hammer bottom of the first stamp hammer touches the first inner bottom of the first stamp seat, and meanwhile, the elastic force of the second spring is smaller and is also compressed. The first stamp hammer moves at a high speed to generate an inertia force due to kinetic energy, and the inertia force is transmitted to the stamp through the first stamp seat, so that a large stamping pressure is generated between the stamp and the document or the object. The stamping pressure at this time is the resultant force of the pressure applied by the human hand and the inertial force of the first hammer, without considering gravity, that is:

stamping pressure = pressure of human hand + inertial force of stamp hammer

As is evident from the above formula: the stamping pressure is greater than the pressure of hands, so that the aim of labor-saving stamping is fulfilled.

After the stamping is finished, the hand is loosened, the stamping handle moves upwards under the action of the first spring, and then the second spring pushes the first stamping hammer to move upwards. When the highest point of the first clamping surface of the first stamp hammer is higher than the lowest point of the second clamping surface of the rotary disc, the rotary disc starts to rotate anticlockwise under the action of the third spring, the second clamping surface of the rotary disc is attached to the first clamping surface of the first stamp hammer again, and the top surface of the retainer ring is in contact with the first step of the first stamp holder again and returns to the initial position.

The above operation is repeated to perform the next stamping.

The second scheme is as follows:

a labor-saving seal comprises the stamp, a second stamp holder, a second stamp hammer, the stamp handle, the rotary disc, the first spring, the fourth spring, the third spring and the retainer ring;

the second seal seat is provided with a second seat bottom, a third excircle, a second step, a fourth excircle, a ninth guide surface, a tenth guide surface, a second inner circle, a fourth spring hole, a second inner bottom, a second top surface, a second stop pin and a second stop cap; the fourth outer circle is positioned above the third outer circle; the diameter of the fourth excircle is larger than that of the third excircle to form a second step; the diameter of the second inner circle is smaller than that of the third outer circle; the second inner circle is coaxial with the third outer circle and the fourth outer circle; a ninth guide surface and a tenth guide surface are arranged between the fourth outer circle and the second inner circle; the ninth guide surface and the tenth guide surface are parallel to the axis of the second inner circle; the number of the ninth guide surface and the tenth guide surface is at least one group; a fourth spring hole is formed in the second top surface, the fourth spring hole is in a circular arc shape and is located between the fourth excircle and the second inner circle, the depth of the fourth spring hole is smaller than the height of the fourth excircle, and the number of the fourth spring holes is at least one; a second stop pin and a second stop cap are arranged on the second top surface, the second stop pin and the second stop cap are coaxial, the second stop cap is arranged above the second stop pin, and the number of the second stop pin and the second stop cap is at least two;

the mounting surface of the die is fixedly connected with the second seat bottom of the second die seat.

The second stamp hammer is provided with a second hammer bottom, a second hammer column, a third step, a flange, a fifth excircle, a second clamping plate, a third clamping surface, a third hammer hole, a fourth hammer hole, a second hammer bottom, an eleventh guide surface, a twelfth guide surface, a second hammer top, a second hammer notch and a second limiting surface; the diameter of a fifth excircle of the second stamp hammer is not larger than that of a second inner circle of the second stamp seat; the height of the second stamp hammer is smaller than that of a second inner circle of the second stamp seat; a fifth outer circle of the second hammer is axially slidable in a second inner circle of the second print seat; the diameter of the second hammer column is smaller than that of the fifth excircle, and a third step is formed; the flange is positioned on a fifth excircle, the excircle diameter of the flange is greater than the diameter of the second inner circle of the second print seat and less than the diameter of the fourth outer circle of the second print seat, and the flange is provided with an eleventh guide surface and a twelfth guide surface: the number of the eleventh guide surfaces and the number of the twelfth guide surfaces are equal to the number of the groups of the ninth guide surfaces and the tenth guide surfaces; the eleventh guide surface is connected with the ninth guide surface of the second print seat in a sliding way, and the twelfth guide surface is connected with the tenth guide surface of the second print seat in a sliding way; the second clamping plates are positioned below the second hammer top, and the number of the second clamping plates is at least two; the third clamping surface is positioned below the second clamping plate; the third clamping surface is a parallel surface or an inclined surface or a spiral surface; the second hammer notches are positioned beside the second clamping plate, and the number of the second hammer notches is equal to that of the second clamping plate; the diameter of the third hammer hole is larger than that of the fourth hammer hole; the second limiting surface is positioned above the flange.

The inner circle of the printing handle is sleeved on the fourth excircle of the second printing seat and can axially move; the number of the handle convex blocks of the printing handle is the same as the number of the groups of the ninth guide surface and the tenth guide surface of the second printing seat; the seventh guide surface of the printing handle is slidably connected with the tenth guide surface of the second print seat, and the eighth guide surface of the printing handle is slidably connected with the ninth guide surface of the second print seat; the guide cylinder surface is not larger than a third hammer hole of the second hammer; the guide cylinder surface of the printing handle can axially move in a third hammer hole of the second hammer;

the bottom surface of the rotary disc is contacted with a second hammer top of the second hammer; the number of the disc bumps of the rotary disc is the same as that of the second clamping plates of the second hammers; the shape of the disc bump of the rotary disc is smaller than that of the second hammer notch of the second hammer; the number of the arc-shaped grooves of the rotating disc is the same as that of the second stop pins of the second printing seat; the arc-shaped groove of the rotary table is sleeved outside the second stop pin of the second print seat, so that the rotary table can rotate around the axis of the rotary table in a reciprocating manner; the thickness of the rotary disc is not more than the height of a second stop pin of the second print seat; the thickness of the rotary table is not more than the axial size of a space between a second clamping plate and a second limiting surface of the second hammer; the third clamping surface of the second stamp hammer is a parallel surface, an inclined surface or a spiral surface; when the third clamping surface of the second stamp hammer is an inclined surface or a spiral surface, the inclination or spiral angle of the second clamping surface of the rotary disc is adapted to the inclination or spiral angle of the third clamping surface of the second stamp hammer; the oblique angle or the helical angle of the second clamping surface of the rotary disc and the third clamping surface of the second stamp hammer is smaller than the friction angle between the rotary disc and the second stamp hammer; the turntable is blocked by a second blocking cap of the second print seat and cannot fall off from a second blocking pin of the second print seat; the number of the rotary disc and the number of the reset holes are the same as the number of the fourth spring holes of the second printing seat; the diameter of the inner circle of the disc is not smaller than the diameter of the fifth outer circle of the second stamp hammer;

the first spring is positioned in a first spring upper hole of the printing handle and a fourth hammer hole of the second hammer, and the bottom of the first spring is in contact with a second hammer bottom of the second hammer;

the fourth spring is positioned between the second inner circle of the second print seat and the second hammer column of the second hammer, the top surface of the fourth spring is in contact with the third step of the second hammer, and the bottom surface of the fourth spring is in contact with the second inner bottom of the second print seat; the elasticity of the fourth spring is much smaller than the elasticity of the first spring.

The short edge of the third spring is completely installed in the fourth spring hole of the second print seat; the lower part of the long edge of the third spring is arranged in a fourth spring hole of the second print seat; the number of the third springs is equal to that of the fourth spring holes of the second print seat;

the diameter of the inner ring hole of the retainer ring is not smaller than the diameter of the third excircle of the second print seat;

before the cover printing, the first spring, the fourth spring and the third spring are in an elastic opening state, the second print hammer is jacked up by the fourth spring, and a second limiting surface of the second print hammer is in contact with the bottom surface of the rotary disc and cannot continuously rise to be at the highest position; the printing handle is jacked up by the first spring, and the ring top surface of the retainer ring is in contact with the second step of the second printing seat and cannot continuously rise to be positioned at the highest position; the rotary disc rotates anticlockwise under the action of the third spring, and a second clamping surface of the rotary disc is tightly attached to a third clamping surface of the second stamp hammer;

during stamping, the working surface of the stamp is placed on a position, needing stamping, of a document or an article, the handle part of the printing handle is held by a hand to press down the printing handle, the first spring is compressed, the pushing surface of the handle bump of the printing handle is not contacted with the disc pushing surface or the disc chamfer of the turntable, and the turntable does not rotate at the stage; the second hammer is clamped by the rotary disc.

And continuing to press the printing handle, continuing to compress the first spring, and pressing the pushing surface of the handle convex block of the printing handle to the disc pushing surface or the disc chamfer of the disc so as to rotate the rotary disc clockwise. When the rotating disc continues to rotate to enable the second clamping surface of the rotating disc to completely leave the third clamping surface of the second stamp hammer, the second stamp hammer loses the clamping of the rotating disc and moves downwards at a high speed under the action of the elastic force of the first spring until the second hammer bottom of the second stamp hammer touches the second inner bottom of the second stamp seat, and meanwhile, the elastic force of the fourth spring is smaller and is also compressed. The first stamp hammer moves at a high speed to generate an inertia force, and the inertia force is transmitted to the stamp through the second stamp seat, so that a large stamping pressure is generated between the stamp and the document or the object. The stamping pressure at this time is the resultant force of the pressure applied by the human hand and the inertia force of the second hammer, without considering gravity, that is:

stamping pressure = pressure of human hand + inertial force of stamp hammer

After the stamping is finished, the hand is loosened, the stamping handle moves upwards under the action of the first spring, and then the fourth spring pushes the second stamping hammer to move upwards. When the highest point of the third clamping surface of the second stamp hammer is higher than the lowest point of the second clamping surface of the rotary disc, the rotary disc starts to rotate anticlockwise under the action of the third spring, the second clamping surface of the rotary disc is tightly attached to the third clamping surface of the second stamp hammer again, and the top surface of the retainer ring is in contact with the second step of the second stamp holder again and returns to the initial position.

The rest is the same as the first scheme and is not repeated.

The utility model has the advantages that the labor-saving seal comprises a stamp, a first seal seat or a second seal seat, a first stamp hammer or a second stamp hammer, a seal handle, a rotary disc, a first spring, a second spring or a fourth spring, a third spring and a retainer ring; when stamping is carried out, the stamping handle is pressed down, the first spring is compressed, the rotary disc releases the stamping hammer to quickly impact the stamping seat, the inertia force of the stamping hammer is superposed with the pressure of a human hand, and the effect that the human hand applies small pressure on the stamping handle to enable the stamping die to obtain large stamping pressure is achieved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of an assembly according to an embodiment of the present invention;

fig. 2 is a schematic view of the stamp of the present invention;

FIG. 3 is a first schematic view of a first print pad of the present invention;

FIG. 4 is a second schematic view of the first print base of the present invention;

fig. 5 is a first schematic diagram of a first stamp of the present invention;

fig. 6 is a second schematic view of the first stamp of the present invention;

FIG. 7 is a first schematic view of the printing handle of the present invention;

FIG. 8 is a second schematic view of the printing handle of the present invention;

fig. 9 is a first schematic view of the turntable of the present invention;

fig. 10 is a schematic view of a second embodiment of the turntable of the present invention;

fig. 11 is a schematic view of a third spring of the present invention;

fig. 12 is a schematic view of a retainer ring of the present invention;

fig. 13 is an assembly view of the second embodiment of the present invention;

FIG. 14 is a first schematic view of a second print pad of the present invention;

FIG. 15 is a second schematic view of a second print nest according to the present invention;

fig. 16 is a first schematic view of a second stamp of the present invention;

fig. 17 is a second schematic diagram of the second stamp of the present invention.

The code numbers in the figure are:

the stamping die comprises a stamping die 1, a first stamping seat 2, a first stamp hammer 3, a stamping handle 4, a rotary disc 5, a first spring 6, a second spring 7, a third spring 8, a retainer ring 9, a second stamping seat 10, a second stamp hammer 11 and a fourth spring 12;

the working surface 101, the mounting surface 102, the first seat bottom 201, the first outer circle 202, the first step 203, the second outer circle 204, the first guide surface 205, the second guide surface 206, the seat block 207, the second unsprung hole 208, the third guide surface 209, the fourth guide surface 210, the first inner bottom 211, the first top surface 212, the first inner circle 213, the third spring hole 214, the first stopper pin 215, the first stopper cap 216, the first hammer bottom 301, the first hammer stud 302, the fifth guide surface 303, the sixth guide surface 304, the spring seat 305, the second sprung hole 306, the first catch plate 307, the first catch surface 308, the first hammer hole 309, the second hammer hole 310, the first hammer bottom 311, the first hammer top 312, the first hammer notch 313, the stopper surface 314, the handle bottom surface 401, the shank inner circle 402, the handle protrusion 403, the seventh guide surface 403a, the eighth guide surface 403b, the pushing surface 403c, the handle notch 403d, the first spring top 404, the handle top surface 406, the handle top spring bottom surface 406, the handle bottom surface 401, the handle inner bottom surface 405, the handle notch 405, the handle top spring hole 406, the handle top surface 406, the handle top hole 406, the handle, A handle portion 408, a handle outer circle 409, a disk bottom surface 501, a disk notch 502, a disk convex block 503, a second clamping surface 504, an arc-shaped groove 505, a reset hole 506, a disk top surface 507, a disk push surface 508, a disk chamfer 509, a disk outer circle 510, a disk inner circle 511, a short side 801, a long side 802, a ring outer circle 901, a ring inner hole 902, a ring top surface 903, a second seat bottom 1001, a third outer circle 1002, a second step 1003, a fourth outer circle 1004, a ninth guide surface 1005, the first guide surface 1006, the second inner circle 1007, the fourth spring hole 1008, the second inner bottom 1009, the second top surface 1010, the second stop pin 1011, the second stop cap 1012, the second hammer bottom 1101, the second hammer column 1102, the third step 1103, the flange 1104, the fifth outer circle 1105, the second catch plate 1106, the third catch surface 1107, the third hammer hole 1108, the fourth hammer hole 1109, the second hammer bottom 1110, the eleventh guide surface 1111, the twelfth guide surface 1112, the second hammer top 1113, the second hammer notch 1114, and the second limit surface 1115.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the accompanying drawings and the detailed description.

Example one

Please refer to fig. 1. Comprises a stamp 1, a first stamp seat 2, a first stamp hammer 3, a stamp handle 4, a rotary disc 5, a first spring 6, a second spring 7, a third spring 8 (figure 11) and a retainer ring 9;

please refer to fig. 2. The stamp 1 is provided with a working surface 101 and a mounting surface 102; engraving desired characters or patterns on the working surface 101 of the stamp 1; the stamp 1 is made of stamp material;

please refer to fig. 3 and 4. The first print seat 2 is provided with a first seat bottom 201, a first outer circle 202, a first step 203, a second outer circle 204, a first guide surface 205, a second guide surface 206, a seat block 207, a second unsprung hole 208, a third guide surface 209, a fourth guide surface 210, a first inner bottom 211, a first top surface 212, a first inner circle 213, a third spring hole 214, a first stop pin 215 and a first stop cap 216; the second outer circle 204 is located above the first outer circle 202; the diameter of the second outer circle 204 is greater than the diameter of the first outer circle 202, forming a first step 203; the diameter of the first inner circle 213 is smaller than the diameter of the first outer circle 202; the first inner circle 213 is coaxial with the first outer circle 202 and the second outer circle 204; a first guide surface 205 and a second guide surface 206 are arranged between the second outer circle 204 and the first inner circle 213; the first guide surface 205 and the second guide surface 206 are parallel to the axis of the first inner circle 213; the number of the first guide surfaces 205 and the second guide surfaces 206 is at least one, and in this embodiment, two; the first inner bottom 211 is provided with seat blocks 207, the number of the seat blocks 207 is at least two, and the seat blocks are distributed along the circumference of the first inner circle 213; a second unsprung hole 208, a third guide surface 209 and a fourth guide surface 210 are formed in the seat block 207, and the depth of the second unsprung hole 208 is smaller than the height of the seat block 207; a third spring hole 214 is formed in the first top surface 212, the third spring hole 214 is arc-shaped and is located between the second outer circle 204 and the first inner circle 213, the depth of the third spring hole 214 is smaller than the height of the second outer circle 204, and the number of the third spring holes 214 is at least one, and in this embodiment, two; a first stop pin 215 and a first stop cap 216 are arranged on the first top surface 212, the first stop pin 215 and the first stop cap 216 are coaxial, the first stop cap 216 is arranged above the first stop pin 215, and the number of the first stop pin 215 and the first stop cap 216 is at least two, in this embodiment four;

the mounting surface 102 of the stamp 1 is fixedly connected to the first housing base 201 of the first stamp housing 2.

Please refer to fig. 5 and fig. 6. The first stamp hammer 3 is provided with a first hammer bottom 301, a first hammer column 302, a fifth guide surface 303, a sixth guide surface 304, a spring seat 305, a second spring upper hole 306, a first clamping plate 307, a first clamping surface 308, a first hammer hole 309, a second hammer hole 310, a first hammer bottom 311, a first hammer top 312, a first hammer notch 313 and a limiting surface 314; the diameter of the first ram 302 of the first hammer 3 is not greater than the diameter of the first inner circle 213 of the first print carrier 2; the height of the first ram 302 of the first hammer 3 is less than the height of the first inner circle 213 of the first print carrier 2; the first ram 302 of the first hammer 3 is axially slidable within the first inner circle 213 of the first print carrier 2; the fifth guide surface 303 is slidably connected to the third guide surface 209 of the first print nest 2, the sixth guide surface 304 is slidably connected to the fourth guide surface 210 of the first print nest 2, and the number of the fifth guide surface 303 and the number of the sixth guide surface 304 are the same as the number of the nest blocks 207 of the first print nest 2; the second sprung hole 306 is located below the sprung block 305, coaxially with the second unsprung hole 208 of the first block 2; the first catch plates 307 are positioned below the first hammer top 312, and the number of the first catch plates is at least two; the first card surface 308 is located below the first card board 307; the first clamping surface 308 is a parallel surface, an inclined surface or a spiral surface; the first hammer notches 313 are located beside the first catch plate 307, and the number of the first hammer notches 313 is equal to the number of the first catch plates 307; the diameter of the first hammer hole 309 is larger than the diameter of the second hammer hole 310; the limiting surface 314 is located above the spring seat 305 and below the first clamping surface 308.

Please refer to fig. 7 and 8. The printing handle 4 is provided with a handle bottom surface 401, a handle inner circle 402, a handle convex block 403, a first spring upper hole 404, a first spring upper bottom 405, a guide post surface 406, a handle inner top 407, a handle part 408 and a handle outer circle 409. The shank inner circle 402 is not smaller than the second outer circle 204 of the first print seat 2; the shank inner circle 402 is axially movable over the second outer circle 204 of the first print carrier 2; the handle convex blocks 403 are positioned on the handle inner circle 402, and the number of the handle convex blocks 403 is the same as the number of the groups of the first guide surface 205 and the second guide surface 206 of the first print seat 2; the handle convex block 403 is provided with a seventh guide surface 403a, an eighth guide surface 403b, a pushing surface 403c and a handle notch 403d, the seventh guide surface 403a and the eighth guide surface 403b are both parallel to the axis of the handle inner circle 402, the seventh guide surface 403a is slidably connected with the second guide surface 206 of the first print seat 2, and the eighth guide surface 403b is slidably connected with the first guide surface 205 of the first print seat 2; the handle notch 403d is located in the middle of the handle protrusion 403, and the eighth guiding surface 403b is located below the handle notch 403 d; the pushing surface 403c is a bevel or a spiral surface and is located above the shank notch 403 d; the guide cylinder 406 is not larger than the first hammer hole 309 of the first hammer 3; the guide cylinder 406 is axially movable in the first hammer bore 309 of the first hammer 3; the diameter of the first sprung hole 404 is equal to the diameter of the second hammer hole 310 of the first hammer 3;

please refer to fig. 9 and 10. The turntable 5 is provided with a disk bottom surface 501, a disk notch 502, a disk bump 503, a second clamping surface 504, an arc-shaped groove 505, a reset hole 506, a disk top surface 507, a disk push surface 508, a disk chamfer 509, a disk excircle 510 and a disk inner circle 511; the bottom disc surface 501 is in contact with the first top surface 212 of the first print nest 2; the tray bottom surface 501 is parallel to the tray top surface 507; the disc notches 502 are positioned on the disc outer circle 510, the depth of the disc notches 502 is not less than the height of the handle lugs 403 of the printing handle 4, and the number of the disc notches 502 is the same as that of the handle lugs 403 of the printing handle 4; a disc pushing surface 508 is arranged on the disc notch 502, and a disc chamfer 509 is arranged at the intersection of the disc top surface 507 and the disc pushing surface 508; the disk bumps 503 are positioned on the disk inner circle 511, and the number of the disk bumps 503 is the same as that of the first card board 307; the outer shape of the disk bump 503 is smaller than the outer shape of the first hammer notch 313 of the first hammer 3; a second clamping surface 504 is arranged on the disk bump 503; arc-shaped grooves 505 are arranged between the tray bottom surface 501 and the tray top surface 507, and the number of the arc-shaped grooves 505 is the same as that of the first stop pins 215 of the first print seat 2; the arc-shaped slot 505 is sleeved outside the first stop pin 215 of the first print seat 2 so that the rotating disc 5 can rotate around the axis thereof in a reciprocating way; the thickness of the rotary disk 5 is not greater than the height of the first stop pin 215 of the first print seat 2; the thickness of the rotary table 5 is not larger than the axial size of the space between the first clamping plate 307 and the limiting surface 314 of the first stamp hammer 3; the second clamping surface 504 is a parallel surface, an inclined surface or a spiral surface; when the second clamping surface 504 is an inclined surface or a spiral surface, the inclination or spiral angle of the second clamping surface 504 of the rotary disk 5 is adapted to the inclination or spiral angle of the first clamping surface 308 of the first stamp 3; the oblique angle or helix angle of the second card surface 504 of the rotary disk 5 and the first card surface 308 of the first stamp 3 is smaller than the friction angle between the rotary disk 5 and the first stamp 3; the rotary plate 5 is blocked by the first blocking cap 216 of the first print seat 2 and cannot fall out of the first blocking pin 215 of the first print seat 2; reset holes 506 are arranged between the tray bottom surface 501 and the tray top surface 507, and the number of the reset holes 506 is the same as that of the third spring holes 214 of the first seal seat 2; the diameter of the disc outer circle 510 is not greater than the diameter of the shank inner circle 402 of the stamp shank 4; the diameter of the disc inner circle 511 is not smaller than the diameter of the first hammer post 302 of the first hammer 3;

the first spring 6 is positioned in a first sprung hole 404 of the stamp handle 4 and a second hammer hole 310 of the first stamp 3, the top of the first spring 6 is in contact with a first sprung bottom 405 of the stamp handle 4, and the bottom of the first spring 6 is in contact with a first hammer bottom 311 of the first stamp 3;

the second spring 7 is positioned in the second unsprung hole 208 of the first stamp holder 2 and the second sprung hole 306 of the first stamp 3, the top of the second spring 7 is in contact with the hole bottom of the second sprung hole 306 of the first stamp 3, and the bottom of the second spring 7 is in contact with the hole bottom of the second unsprung hole 208 of the first stamp holder 2; the number of the second springs 7 is equal to the number of the second unsprung holes 208 of the first print seat 2; the elasticity of the second spring 7 is much smaller than the elasticity of the first spring 6.

Please refer to fig. 11. The third spring 8 is provided with a short side 801 and a long side 802; the short side 801 of the third spring 8 is completely inserted into the third spring hole 214 of the first pad 2; the lower part of the long edge 802 of the third spring 8 is arranged in the third spring hole 214 of the first print seat 2, and the upper part of the long edge 802 of the third spring 8 is arranged in the reset hole 506 of the turntable 5; the number of the third springs 8 is equal to the number of the third spring holes 214 of the first print seat 2;

please refer to fig. 12. The diameter of the outer circle 901 of the retainer ring 9 is equal to the diameter of the handle outer circle 409 of the printing handle 4; the diameter of the inner ring hole 902 of the retainer ring 9 is not less than the diameter of the first outer circle 202 of the first print seat 2; the collar top surface 903 of the securing collar 9 is fixedly connected to the shank bottom surface 401 of the stamp shank 4.

Before the cover printing, the first spring 6, the second spring 7 and the third spring 8 are in an elastic opening state, the first stamp hammer 3 is jacked up by the second spring 7, and the limiting surface 314 of the first stamp hammer 3 is in contact with the bottom surface 501 of the turntable 5 and cannot continuously rise to be located at the highest position; the printing handle 4 is jacked up by the first spring 6, and the ring top surface 903 of the retainer ring 9 is contacted with the first step 203 of the first printing seat 2 and cannot continuously rise to be positioned at the highest position; the rotary disc 5 rotates anticlockwise under the action of the third spring 8, and the second clamping surface 504 of the rotary disc 5 is tightly attached to the first clamping surface 308 of the first stamp hammer 3; the disk push surface 508 and the disk chamfer 509 of the rotating disk 5 enter the handle notch 403d of the handle bump 403 of the printing handle 4;

when in stamping, the working surface 101 of the stamp 1 is placed on a position of a document or an article to be stamped, the handle part 408 of the printing handle 4 is held by a hand to press down the printing handle 4, the first spring 6 is compressed, the pushing surface 403c of the handle bump 403 of the printing handle 4 does not contact the disc pushing surface 50 or the disc chamfer 509 of the rotary disc 5, and the rotary disc 5 does not rotate at the stage; the first hammer 3 is also jammed and immobilized by the rotary table 5.

The first spring 6 is further compressed by further pressing the stamp handle 4, and the pushing face 403c of the handle protrusion 403 of the stamp handle 4 is pressed against the disc pushing face 50 or the disc chamfer 509 of the disc 5, so that the turntable 5 is rotated clockwise. When the rotary plate 5 continues to rotate to make the second clamping surface 504 of the rotary plate 5 completely leave the first clamping surface 308 of the first stamp hammer 3, the first stamp hammer 3 loses the clamping of the rotary plate 5 and moves downwards at a high speed under the action of the elastic force of the first spring 6 until the first hammer bottom 301 of the first stamp hammer 3 touches the first inner bottom 211 of the first stamp holder 2, and meanwhile, the elastic force of the second spring 7 is smaller and is also compressed. Due to the kinetic energy of the first hammer 3 during the high-speed movement, an inertial force is generated, which is transmitted to the stamp 1 via the first stamp holder 2, so that a large stamping pressure is generated between the stamp 1 and the document or object. The stamping pressure at this time is a resultant force of the pressure applied by the human hand and the inertial force of the first hammer 3, without considering gravity, that is:

stamping pressure = pressure of human hand + inertial force of stamp hammer

After the stamp is finished, the hand is released, the stamp handle 4 moves upward under the action of the first spring 6, and then the second spring 7 pushes the first stamp hammer 3 to move upward. When the highest point of the first clamping surface 308 of the first stamp 3 is higher than the lowest point of the second clamping surface 504 of the rotary disc 5, the rotary disc 5 starts to rotate counterclockwise under the action of the third spring 8, the second clamping surface 504 of the rotary disc 5 is attached to the first clamping surface 308 of the first stamp 3 again, and the top surface 903 of the retainer ring 9 is contacted with the first step 203 of the first stamp holder 2 again and returns to the initial position.

The above operation is repeated to perform the next stamping.

Example two

Please refer to fig. 13. Comprises a stamp 1, a second stamp seat 10, a second stamp hammer 11, a stamp handle 4, a rotary disc 5, a first spring 6, a fourth spring 12, a third spring 8 (figure 11) and a retainer ring 9;

please refer to fig. 14 and 15. The second print base 10 is provided with a second base bottom 1001, a third excircle 1002, a second step 1003, a fourth excircle 1004, a ninth guide surface 1005, a tenth guide surface 1006, a second inner circle 1007, a fourth spring hole 1008, a second inner bottom 1009, a second top surface 1010, a second stop pin 1011 and a second stop cap 1012; the fourth outer circle 1004 is located above the third outer circle 1002; the diameter of the fourth outer circle 1004 is larger than the diameter of the third outer circle 1002, forming a second step 1003; the diameter of the second inner circle 1007 is less than the diameter of the third outer circle 1002; the second inner circle 1007 is coaxial with the third outer circle 1002 and the fourth outer circle 1004; a ninth guide surface 1005 and a tenth guide surface 1006 are arranged between the fourth outer circle 1004 and the second inner circle 1007; the ninth guide surface 1005 and the tenth guide surface 1006 are parallel to the axis of the second inner circle 1007; the number of the ninth guiding surface 1005 and the tenth guiding surface 1006 is at least one, and in this embodiment, two; a fourth spring hole 1008 is formed in the second top surface 1010, the fourth spring hole 1008 is in a circular arc shape and is located between the fourth outer circle 1004 and the second inner circle 1007, the depth of the fourth spring hole 1008 is smaller than the height of the fourth outer circle 1004, and the number of the fourth spring holes 1008 is at least one, and in the embodiment, the number of the fourth spring holes 1008 is two; a second stop pin 1011 and a second stop cap 1012 are arranged on the second top surface 1010, the second stop pin 1011 and the second stop cap 1012 are coaxial, the second stop cap 1012 is above the second stop pin 1011, and the number of the second stop pin 1011 and the second stop cap 1012 is at least two, in this embodiment, four;

the mounting surface 102 of the stamp 1 is fixedly connected to the second housing bottom 1001 of the second stamp housing 10.

Please refer to fig. 16 and 17. The second hammer 11 is provided with a second hammer bottom 1101, a second hammer column 1102, a third step 1103, a flange 1104, a fifth excircle 1105, a second clamping plate 1106, a third clamping surface 1107, a third hammer hole 1108, a fourth hammer hole 1109, a second hammer bottom 1110, an eleventh guide surface 1111, a twelfth guide surface 1112, a second hammer top 1113, a second hammer notch 1114 and a second limiting surface 1115; the diameter of the fifth outer circle 1105 of the second stamp hammer 11 is not larger than the diameter of the second inner circle 1007 of the second stamp seat 10; the height of the second hammer 11 is smaller than the height of the second inner circle 1007 of the second print seat 10; the fifth outer circle 1105 of the second hammer 11 is axially slidable within the second inner circle 1007 of the second print nest 10; the diameter of the second hammer 1102 is less than the diameter of the fifth outer circle 1105, forming a third step 1103; the flange 1104 is positioned on the fifth outer circle 1105, the diameter of the outer circle of the flange 1104 is larger than the diameter of the second inner circle 1007 of the second print seat 10 and smaller than the diameter of the fourth outer circle 1004 of the second print seat 10, and an eleventh guide surface 1111 and a twelfth guide surface 1112 are arranged on the flange 1104: the number of the eleventh guide surfaces 1111 and the twelfth guide surfaces 1112 is equal to the number of the sets of the ninth guide surfaces 1005 and the tenth guide surfaces 1006; the eleventh guide surface 1111 is slidably connected with the ninth guide surface 1005 of the second print nest 10, and the twelfth guide surface 1112 is slidably connected with the tenth guide surface 1006 of the second print nest 10; the second clamping plates 1106 are positioned below the second hammer tops 1113 and are at least two in number; the third card surface 1107 is positioned below the second card plate 1106; the third clamping surface 1107 is a parallel surface, an inclined surface or a spiral surface; the second hammer notches 1114 are located beside the second catch plate 1106, and the number of the second hammer notches 1114 is equal to the number of the second catch plates 1106; the diameter of the third hammer aperture 1108 is greater than the diameter of the fourth hammer aperture 1109; the second limit surface 1115 is located above the flange 1104.

The inner shank circle 402 of the stamp shank 4 is axially movable over the fourth outer circle 1004 of the second stamp holder 10; the number of the handle projections 403 of the stamp handle 4 is the same as the number of the sets of the ninth guide surface 1005 and the tenth guide surface 1006 of the second stamp holder 10; the seventh guide surface 403a of the stamp stem 4 is slidably connected with the tenth guide surface 1006 of the second stamp pad 10, and the eighth guide surface 403b of the stamp stem 4 is slidably connected with the ninth guide surface 1005 of the second stamp pad 10; the guide cylinder 406 is not larger than the third hammer hole 1108 of the second hammer 11; the guide post face 406 of the stamp shank 4 is axially movable in the third hammer hole 1108 of the second hammer 11;

the disk bottom surface 501 of the rotary disk 5 contacts the second hammer top 1113 of the second hammer stamp 11; the number of the disk projections 503 of the rotary disk 5 is the same as the number of the second chucking plates 1106 of the second hammers 11; the outer shape of the disc projection 503 of the rotary disc 5 is smaller than the outer shape of the second hammer notch 1114 of the second hammer 11; the number of the arc-shaped grooves 505 of the rotating disc 5 is the same as that of the second stop pins 1011 of the second print seat 10; the arc-shaped groove 505 of the rotating disc 5 is sleeved outside the second stop pin 1011 of the second print seat 10, so that the rotating disc 5 can rotate around the axis thereof in a reciprocating manner; the thickness of the rotary table 5 is not more than the height of the second stop pin 1011 of the second print seat 10; the thickness of the rotary table 5 is not greater than the axial size of the space between the second clamping plate 1106 and the second limiting surface 1115 of the second hammer 11; the third clamping surface 1107 of the second stamp 11 is a parallel surface, an inclined surface or a spiral surface; when the third card surface 1107 of the second hammer 11 is an inclined surface or a spiral surface, the inclination or spiral angle of the second card surface 504 of the rotary disk 5 is adapted to the inclination or spiral angle of the third card surface 1107 of the second hammer 11; the oblique angle or the spiral angle of the second clamping surface 504 of the rotary disk 5 and the third clamping surface 1107 of the second stamp 11 is smaller than the friction angle between the rotary disk 5 and the second stamp 11; the rotating disc 5 is blocked by the second blocking cap 1012 of the second print base 10 and cannot fall off the second blocking pin 1011 of the second print base 10; the quantity of the rotary disc 5 and the reset holes 506 is the same as that of the fourth spring holes 1008 of the second seal seat 10; the diameter of the disc inner circle 511 is not smaller than the diameter of the fifth outer circle 1105 of the second hammer 11;

the first spring 6 is positioned in the first sprung hole 404 of the stamp handle 4 and the fourth hammer hole 1109 of the second hammer 11, and the bottom of the first spring 6 contacts the second hammer bottom 1110 of the second hammer 11;

the fourth spring 12 is located between the second inner circle 1007 of the second print seat 10 and the second hammer column 1102 of the second hammer 11, the top surface of the fourth spring 12 contacts with the third step 1103 of the second hammer 11, and the bottom surface of the fourth spring 12 contacts with the second inner bottom 1009 of the second print seat 10; the elasticity of the fourth spring 12 is much smaller than the elasticity of the first spring 6.

The short side 801 of the third spring 8 is completely inserted into the fourth spring hole 1008 of the second print base 10; the lower part of the long side 802 of the third spring 8 is arranged in the fourth spring hole 1008 of the second print seat 10; the number of the third springs 8 is equal to that of the fourth spring holes 1008 of the second print seat 10;

the diameter of the inner ring hole 902 of the retainer ring 9 is not less than the diameter of the third excircle 1002 of the second print seat 10;

before the cover printing, the first spring 6, the fourth spring 12 and the third spring 8 are in an elastic opening state, the second stamp hammer 11 is jacked up by the fourth spring 12, and the second limit surface 1115 of the second stamp hammer 11 is in contact with the disc bottom surface 501 of the turntable 5 and cannot continuously rise to be at the highest position; the printing handle 4 is jacked up by the first spring 6, and the ring top surface 903 of the retainer ring 9 is in contact with the second step 1003 of the second printing seat 10 and cannot continuously rise to be at the highest position; the rotating disc 5 rotates anticlockwise under the action of the third spring 8, and the second clamping surface 504 of the rotating disc 5 is tightly attached to the third clamping surface 1107 of the second hammer 11;

when in stamping, the working surface 101 of the stamp 1 is placed on a position of a document or an article to be stamped, the handle part 408 of the printing handle 4 is held by a hand to press down the printing handle 4, the first spring 6 is compressed, the pushing surface 403c of the handle bump 403 of the printing handle 4 does not contact the disk pushing surface 508 or the disk chamfer 509 of the rotating disk 5, and the rotating disk 5 does not rotate at this stage; the second hammer 11 is held stationary by the turntable 5.

The first spring 6 is further compressed by further depressing the print lever 4, and the pushing face 403c of the lever projection 403 of the print lever 4 is pressed against the disc pushing face 508 or the disc chamfer 509 of the disc 5, so that the turntable 5 is rotated clockwise. When the rotary plate 5 continues to rotate to make the second clamping surface 504 of the rotary plate 5 completely leave the third clamping surface 1107 of the second hammer 11, the second hammer 11 loses the clamping of the rotary plate 5 and moves downward at high speed under the elastic force of the first spring 6 until the second hammer bottom 1110 of the second hammer 11 touches the second inner bottom 1009 of the second print seat 10, and the elastic force of the fourth spring 12 is small and is compressed. Due to the kinetic energy of the first hammer 3 during the high-speed movement, an inertial force is generated, which is transmitted to the stamp 1 via the second stamp holder 10, so that a large stamping pressure is generated between the stamp 1 and the document or object. The stamping pressure at this time is a resultant force of the pressure applied by the human hand and the inertial force of the second hammer 11, without considering gravity, that is:

stamping pressure = pressure of human hand + inertial force of stamp hammer

After the stamp is finished, the hand is released, the stamp handle 4 moves upward under the action of the first spring 6, and then the fourth spring 12 pushes the second stamp hammer 11 to move upward. When the highest point of the third clamping surface 1107 of the second hammer 11 is higher than the lowest point of the second clamping surface 504 of the rotary disc 5, the rotary disc 5 starts to rotate counterclockwise under the action of the third spring 8, the second clamping surface 504 of the rotary disc 5 and the third clamping surface 1107 of the second hammer 11 are attached again, and the top surface 903 of the retainer ring 9 and the second step 1003 of the second print seat 10 are contacted again and return to the initial position.

The rest of the embodiments are the same as those of the first embodiment, and are not described again.

In the present invention, "first", "second", "top", "bottom", "inner", "outer", "upper", "lower", "forward", "reverse", etc. are all descriptive distinctions, and have no other special meanings.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and inventive features disclosed herein.

Claims

1. A labor-saving seal is characterized in that: the stamping die comprises a stamping die, a first stamping seat, a first stamping hammer, a stamping handle, a rotary disc, a first spring, a second spring, a third spring and a retainer ring;

the first seal seat is provided with a first seat bottom, a first excircle, a first step, a second excircle, a first guide surface, a second guide surface, a seat block, a second unsprung hole, a third guide surface, a fourth guide surface, a first inner bottom, a first top surface, a first inner circle and a third spring hole; the second outer circle is positioned above the first outer circle; the diameter of the second outer circle is larger than that of the first outer circle to form a first step; the diameter of the first inner circle is smaller than that of the first outer circle; the first inner circle is coaxial with the first outer circle and the second outer circle; a first guide surface and a second guide surface are arranged between the second outer circle and the first inner circle; the first guide surface and the second guide surface are parallel to the axis of the first inner circle; the number of the first guide surface and the second guide surface is at least one group; the first inner bottom is provided with at least two seat blocks which are distributed along the circumference of the first inner circle; a second unsprung hole, a third guide surface and a fourth guide surface are arranged on the seat block, and the depth of the second unsprung hole is smaller than the height of the seat block; the first top surface is provided with a first spring hole, the first spring hole is positioned between the first outer circle and the first inner circle in a circular arc shape, the depth of the first spring hole is smaller than the height of the first outer circle, and the number of the first spring holes is at least one;

the mounting surface of the die is fixedly connected with the first seat bottom of the first die seat;

the first stamp hammer is provided with a first hammer bottom, a first hammer column, a fifth guide surface, a sixth guide surface, a spring seat, a second spring upper hole, a first clamping plate, a first hammer hole, a second hammer hole, a first hammer bottom, a first hammer top, a first hammer notch and a limiting surface; the diameter of a first hammer column of the first stamp hammer is not larger than that of a first inner circle of the first stamp seat; the height of a first hammer column of the first stamp hammer is smaller than that of a first inner circle of the first stamp seat; the first hammer column of the first stamp hammer can axially slide in the first inner circle of the first stamp seat; the fifth guide surface is connected with the third guide surface of the first print seat in a sliding manner, the sixth guide surface is connected with the fourth guide surface of the first print seat in a sliding manner, and the number of the fifth guide surface and the number of the sixth guide surface are the same as that of the seat blocks of the first print seat; the second sprung hole is positioned below the spring seat and is coaxial with the second unsprung hole of the first print seat; the first clamping plates are positioned below the first hammer top, and the number of the first clamping plates is at least two; the first hammer notches are positioned beside the first clamping plates, and the number of the first hammer notches is equal to that of the first clamping plates; the diameter of the first hammer hole is larger than that of the second hammer hole; the limiting surface is positioned above the spring seat and below the first clamping surface;

the printing handle is provided with a handle bottom surface, a handle inner circle, a handle convex block, a first spring upper hole, a first spring upper bottom, a handle inner top and a handle outer circle; the inner circle of the handle is not smaller than the second outer circle of the first print seat; the inner circle of the handle is sleeved on the second excircle of the first print seat and can axially move; the number of the handle convex blocks is the same as the number of the first guide surface and the second guide surface of the first print seat; the handle convex block is provided with a seventh guide surface, an eighth guide surface, a pushing surface and a handle notch, the seventh guide surface and the eighth guide surface are both parallel to the axis of the inner circle of the handle, the seventh guide surface is connected with the second guide surface of the first print seat in a sliding way, and the eighth guide surface is connected with the first guide surface of the first print seat in a sliding way; the handle notch is positioned in the middle of the handle convex block, and the eighth guide surface is positioned below the handle notch; the pushing surface is an inclined surface or a spiral surface and is positioned above the handle notch; the diameter of the first sprung hole is equal to the diameter of the second hammer hole of the first hammer;

the rotary disc is provided with a disc bottom surface, a disc notch, a disc convex block, an arc-shaped groove, a reset hole, a disc top surface, a disc push surface, a disc excircle and a disc inner circle; the bottom surface of the tray is in contact with the first top surface of the first print seat; the bottom surface of the tray is parallel to the top surface of the tray; the disc notches are positioned on the outer circle of the disc, the depth of the disc notches is not less than the height of the handle convex blocks of the printing handle, and the number of the disc notches is the same as that of the handle convex blocks of the printing handle; a disc pushing surface is arranged on the disc notch; the disk lugs are positioned on the inner circle of the disk, and the number of the disk lugs is the same as that of the first clamping plates; the shape of the disk bump is smaller than that of the first hammer notch of the first stamp hammer; a second clamping surface is arranged on the disc bump; arc-shaped grooves are formed between the bottom surface of the plate and the top surface of the plate, and the number of the arc-shaped grooves is the same as that of the first stop pins of the first print seat; the arc-shaped groove is sleeved outside the first stop pin of the first print seat, so that the rotary disc can rotate around the axis of the rotary disc in a reciprocating manner; the thickness of the rotary disc is not more than the axial size of a space between the first clamping plate and the limiting surface of the first stamp hammer; reset holes are formed between the bottom surface and the top surface of the plate, and the number of the reset holes is the same as that of the third spring holes of the first seal seat; the diameter of the disc excircle is not more than the diameter of the handle inner circle of the printing handle; the diameter of the inner circle of the disc is not smaller than the diameter of a first hammer column of the first stamp hammer;

the second spring is positioned in a second unsprung hole of the first stamp pad and a second sprung hole of the first stamp, the top of the second spring is in contact with the bottom of the second sprung hole of the first stamp, and the bottom of the second spring is in contact with the bottom of the second unsprung hole of the first stamp pad; the number of the second springs is equal to that of the second unsprung holes of the first print seat; the elasticity of the second spring is much smaller than that of the first spring;

the top surface of the retainer ring is fixedly connected with the bottom surface of the handle of the printing handle, and the diameter of the inner hole of the retainer ring is not smaller than that of the first excircle of the first printing seat.

2. The labor-saving stamp according to claim 1, comprising the stamp, a second stamp holder, a second stamp hammer, the stamp handle, the rotary disk, the first spring, a fourth spring, the third spring, and the retainer ring;

the second print seat is provided with a second seat bottom, a third excircle, a second step, a fourth excircle, a ninth guide surface, a tenth guide surface, a second inner circle, a fourth spring hole, a second inner bottom and a second top surface; the fourth outer circle is positioned above the third outer circle; the diameter of the fourth excircle is larger than that of the third excircle to form a second step; the diameter of the second inner circle is smaller than that of the third outer circle; the second inner circle is coaxial with the third outer circle and the fourth outer circle; a ninth guide surface and a tenth guide surface are arranged between the fourth outer circle and the second inner circle; the ninth guide surface and the tenth guide surface are parallel to the axis of the second inner circle; the number of the ninth guide surface and the tenth guide surface is at least one group; a fourth spring hole is formed in the second top surface, the fourth spring hole is in a circular arc shape and is located between the fourth excircle and the second inner circle, the depth of the fourth spring hole is smaller than the height of the fourth excircle, and the number of the fourth spring holes is at least one;

the mounting surface of the die is fixedly connected with the second seat bottom of the second die seat;

the second stamp hammer is provided with a second hammer bottom, a second hammer column, a third step, a flange, a fifth excircle, a second clamping plate, a third hammer hole, a fourth hammer hole, a second hammer bottom, an eleventh guide surface, a twelfth guide surface, a second hammer top, a second hammer notch and a second limiting surface; the diameter of a fifth excircle of the second stamp hammer is not larger than that of a second inner circle of the second stamp seat; the height of the second stamp hammer is smaller than that of a second inner circle of the second stamp seat; a fifth outer circle of the second hammer is axially slidable in a second inner circle of the second print seat; the diameter of the second hammer column is smaller than that of the fifth excircle, and a third step is formed; the flange is positioned on a fifth excircle, the excircle diameter of the flange is greater than the diameter of the second inner circle of the second print seat and less than the diameter of the fourth outer circle of the second print seat, and the flange is provided with an eleventh guide surface and a twelfth guide surface: the number of the eleventh guide surfaces and the number of the twelfth guide surfaces are equal to the number of the groups of the ninth guide surfaces and the tenth guide surfaces; the eleventh guide surface is connected with the ninth guide surface of the second print seat in a sliding way, and the twelfth guide surface is connected with the tenth guide surface of the second print seat in a sliding way; the second clamping plates are positioned below the second hammer top, and the number of the second clamping plates is at least two; the second hammer notches are positioned beside the second clamping plate, and the number of the second hammer notches is equal to that of the second clamping plate; the diameter of the third hammer hole is larger than that of the fourth hammer hole; the second limiting surface is positioned above the flange;

the inner circle of the printing handle is sleeved on the fourth excircle of the second printing seat and can axially move; the number of the handle convex blocks of the printing handle is the same as the number of the groups of the ninth guide surface and the tenth guide surface of the second printing seat; the seventh guide surface of the printing handle is slidably connected with the tenth guide surface of the second print seat, and the eighth guide surface of the printing handle is slidably connected with the ninth guide surface of the second print seat; the surface of the guide post of the stamp handle is not larger than the third hammer hole of the second stamp hammer; the guide cylinder surface of the printing handle can axially move in a third hammer hole of the second hammer;

the bottom surface of the rotary disc is contacted with a second hammer top of the second hammer; the number of the disc bumps of the rotary disc is the same as that of the second clamping plates of the second hammers; the shape of the disc bump of the rotary disc is smaller than that of the second hammer notch of the second hammer; the number of the arc-shaped grooves of the rotating disc is the same as that of the second stop pins of the second printing seat; the arc-shaped groove of the rotary table is sleeved outside the second stop pin of the second print seat, so that the rotary table can rotate around the axis of the rotary table in a reciprocating manner; the thickness of the rotary table is not more than the axial size of a space between a second clamping plate and a second limiting surface of the second hammer; the number of the rotary disc and the number of the reset holes are the same as the number of the fourth spring holes of the second printing seat; the diameter of the inner circle of the disc is not smaller than the diameter of the fifth outer circle of the second stamp hammer;

the fourth spring is positioned between the second inner circle of the second print seat and the second hammer column of the second hammer, the top surface of the fourth spring is in contact with the third step of the second hammer, the bottom surface of the fourth spring is in contact with the second inner bottom of the second print seat, and the elasticity of the fourth spring is much smaller than that of the first spring;

the top surface of the retainer ring is fixedly connected with the bottom surface of the handle of the printing handle, and the diameter of the inner hole of the retainer ring is not smaller than that of the third excircle of the second printing seat.

3. The labor-saving stamp according to claim 1, wherein the first stamp hammer is provided with a first clamping surface, the first clamping surface is positioned below the first clamping plate of the first stamp hammer, and the first clamping surface is a parallel surface, an inclined surface or a spiral surface; a second clamping surface is arranged on the rotary table and is a parallel surface or an inclined surface or a spiral surface; when the second clamping surface is an inclined surface or a spiral surface, the inclination or spiral angle of the second clamping surface of the rotary disc is adapted to the inclination or spiral angle of the first clamping surface of the first stamp hammer; the oblique angle or the helical angle between the second clamping surface of the rotary disc and the first clamping surface of the first stamp hammer is smaller than the friction angle between the rotary disc and the first stamp hammer.

4. The labor-saving stamp according to claim 1, wherein a first stop pin and a first stop cap are arranged on the first top surface of the first stamp seat, the first stop pin and the first stop cap are coaxial, the first stop cap is arranged above the first stop pin, the height of the first stop pin is greater than or equal to the thickness of the rotary disc, and the number of the first stop pin and the first stop cap is at least two; the rotating disc is blocked by the first blocking cap of the first print seat and cannot fall out of the first blocking pin of the first print seat.

5. The labor-saving stamp according to claim 2, wherein a second stop pin and a second stop cap are arranged on a second top surface of the second stamp seat, the second stop pin and the second stop cap are coaxial, the second stop cap is arranged above the second stop pin, the height of the second stop pin is greater than or equal to the thickness of the rotary disc, and the number of the second stop pin and the second stop cap is at least two; the rotating disc is blocked by the second blocking cap of the second print seat and cannot fall out of the second blocking pin of the second print seat.

6. The labor-saving stamp according to claim 1, wherein a guide post surface is further provided on the stamp handle, the guide post surface is not larger than the first hammer hole of the first stamp hammer, and the guide post surface is axially movable in the first hammer hole of the first stamp hammer.

7. The labor-saving stamp according to claim 1 or 2, wherein a handle portion is further provided on the stamp handle.

8. The labor-saving stamp according to claim 1 or 2, wherein a disc chamfer is provided at the intersection of the disc top surface of the rotary disc and the disc pushing surface.

9. The labor-saving stamp according to claim 2, wherein a third clamping surface is arranged on the second stamp hammer, and the third clamping surface of the second stamp hammer is a parallel surface, an inclined surface or a spiral surface; when the third clamping surface of the second stamp hammer is an inclined surface or a spiral surface, the inclination or spiral angle of the second clamping surface of the rotary disc is adapted to the inclination or spiral angle of the third clamping surface of the second stamp hammer.