CN212422588U

CN212422588U - Square seal protection device

Info

Publication number: CN212422588U
Application number: CN202020739074.8U
Authority: CN
Inventors: 刘博文; 蒋国平; 陈永笃; 张旭
Original assignee: Beijing Guoyin Wangan Technology Co ltd
Current assignee: Beijing Guoyin Wangan Technology Co ltd
Priority date: 2020-05-07
Filing date: 2020-05-07
Publication date: 2021-01-29
Anticipated expiration: 2030-05-07

Abstract

The utility model relates to a square seal protection device belongs to seal technical field, can not change to the seal of automatic convertible seal instrument, can only stamp the typeface problem of the same type of type provides following technical scheme, the technical essential of the utility model includes U type carriage and U type leading truck, the length direction slip of U type leading truck is followed to U type carriage, be provided with reset spring between U type carriage and the U type leading truck, U type leading truck is from last to being provided with stamp pad and seal and U type roll-over stand down in order, be provided with automatic tilting mechanism between U type carriage and the U type leading truck, U type roll-over stand has set firmly two fixed strips, U type mounting hole has been seted up to the fixed strip, the open end of two U type mounting holes sets up relatively, the seal extends and has the connecting block, the connecting block is pegged graft in U type mounting hole, the fixed strip is provided with the spacing subassembly that is used for restricting the connecting block displacement. The utility model has the advantages of be convenient for change the seal, make same square seal can be equipped with a plurality of seals and use.

Description

Square seal protection device

Technical Field

The utility model relates to a seal technical field, in particular to square seal protection device.

Background

The stamp has wide application, such as a public stamp used by administrative, enterprise and public institutions, various department stamps and the like, and the stamp is also used for printing serial numbers, batch numbers, company LOGO and the like for products in factory production. The seal has the characteristics of labor saving, quickness, attractive and elegant appearance, accurate positioning, durability, falling resistance, capability of randomly changing colors and seal contents, capability of automatically dipping oil and capability of being pursued by people all the time.

The prior patent document with the publication number of CN201856459U discloses an automatic turnover type stamp tool, which comprises a stamp, an ink pad, an automatic turnover device and an automatic reset device, wherein the automatic turnover device comprises a push sheet, a support frame, a rotating support, a shaft pin and a fixed pin, and the support frame is provided with a movable track of the shaft pin.

Although this automatic convertible seal instrument is when using, through pressing down the ejector pad, the ejector pad drives the pivot and moves along the orbit together, and the pivot can drive the runing rest and do the upset action when from top to bottom moving along the orbit to make the seal convertible.

However, this automatic convertible seal instrument's ink pad direct mount pastes in the support frame bottom, is fixed with the seal fixed block on the runing rest, and the seal direct mount is on the seal fixed block, when the typeface of stamp needs to be changed, needs to change different seals, because this automatic convertible seal instrument's seal and seal fixed block fixed connection, fixed block and runing rest fixed connection for this automatic convertible seal instrument can only stamp the typeface of the same type.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a square seal protection device, it has the seal of being convenient for to change, makes same square seal can be equipped with the advantage that a plurality of seals used.

The above technical purpose of the present invention can be achieved by the following technical solutions:

a square seal protection device comprises a U-shaped sliding frame and a U-shaped guide frame, wherein the open end of the U-shaped sliding frame and the open end of the U-shaped guide frame are arranged downwards, the U-shaped sliding frame covers the outer part of the U-shaped guide frame, and the U-shaped sliding frame slides in a reciprocating manner along the length direction of the U-shaped guide frame, a reset spring is arranged between the U-shaped sliding frame and the U-shaped guide frame, one end of the reset spring is fixedly connected with the top wall of the U-shaped sliding frame, the other end of the reset spring is fixedly connected with the top wall of the U-shaped guide frame, the U-shaped guide frame is sequentially provided with a stamp pad, a stamp and a U-shaped turnover frame from top to bottom, the stamp pad is fixedly connected with the U-shaped guide frame, the open end of the U-shaped turnover frame is arranged downwards, an automatic turnover mechanism for driving the U-shaped turnover frame to rotate is arranged between the U-shaped sliding, two the fixed strip sets up respectively in the both sides that U type roll-over stand horizontal part is close to U type leading truck inner wall, U type mounting hole has been seted up to the fixed strip, two the open end of U type mounting hole sets up relatively, the seal extends in one side that is close to U type mounting hole has the connecting block, the connecting block is pegged graft in U type mounting hole, the fixed strip is provided with the spacing subassembly that is used for restricting the connecting block in the inside displacement of U type mounting hole.

By adopting the technical scheme, the U-shaped sliding frame is pressed downwards, the automatic turnover mechanism is driven in the process that the U-shaped sliding frame moves along the length direction of the U-shaped guide frame, the U-shaped turnover frame is turned over under the action of the automatic turnover mechanism, the open end of the U-shaped turnover frame is upward, the U-shaped turnover frame drives the seal to turn over synchronously, and then the U-shaped turnover frame drives the seal to continuously move downwards along the length direction of the U-shaped guide frame to form a print on the paper; and after the external force is removed, the U-shaped sliding frame drives the U-shaped turnover frame to drive the stamp to reversely turn over, and the upper surface of the stamp is attached to the lower surface of the ink pad. When the seal needs to be changed, the position of the connecting block is limited by the limiting assembly, the connecting block is pulled outwards, the connecting block drives the seal to be separated from the U-shaped mounting hole, the connection relation between the seal and the U-shaped turnover frame is removed, a new seal is inserted into the U-shaped mounting hole again, the relative position of the seal is limited under the action of the limiting assembly, the fixed connection between the seal and the U-shaped turnover frame is realized, the replacement of the new seal is completed, and the same square seal can be equipped with a plurality of seals for use.

The utility model discloses further set up to: the limiting assembly comprises a limiting block which is vertically arranged, a first limiting hole is formed in the connecting block, a second limiting hole is formed in the top wall of the U-shaped mounting hole, when the connecting block is located in the U-shaped mounting hole, the center of the first limiting hole and the center of the second limiting hole are located on the same straight line, and the upper end of the limiting block sequentially penetrates through the first limiting hole and the second limiting hole; the limiting assembly further comprises a control rod for keeping the limiting block to penetrate through the second limiting hole, an operation space for the control rod to insert is reserved between the connecting block and the bottom wall of the U-shaped mounting hole, the lower end of the limiting block abuts against the side wall of the control rod, when the control rod moves out of the operation space, the lower end of the limiting block abuts against the bottom wall of the U-shaped mounting hole, and the upper end of the limiting block is located inside the first limiting hole; the lower extreme of stopper has set firmly the butt piece, the butt piece is the level setting, and when the upper end of stopper was located the inside in the spacing hole of second, the upper surface butt of butt piece in the lower surface of connecting block.

Through adopting above-mentioned technical scheme, when needs installation seal, insert the inside of U type mounting hole with the connecting block of seal both sides, the lower extreme butt of stopper this moment in the lower lateral wall of U type mounting hole, the upper end of stopper is located the inside in first spacing hole, when the seal removes to certain position, first spacing hole center and the spacing hole center of second are in a straight line, insert the inside of operating space with the control lever, the control lever pushes the spacing hole of second with the upper end of stopper, the displacement of connecting block in U type mounting hole inside has been restricted, the realization is to the rigidity of seal. By arranging the abutting block, on one hand, the contact area between the lower end of the limiting block and the lower side wall of the U-shaped mounting hole is increased, and the stability of the limiting block is improved; on the other hand, when the U-shaped roll-over stand is turned over to the seal and faces downwards, the limiting block is prevented from being separated from the first limiting hole and the second limiting hole.

The utility model discloses further set up to: the cross-section of butt joint piece is trapezoidal setting, the contact jaw of control lever in its and butt joint piece sets up to the inclined plane, the hypotenuse parallel arrangement of inclined plane and butt joint piece.

Through adopting above-mentioned technical scheme, when the hypotenuse contact of inclined plane and butt joint piece, convert the effort of control lever level promotion butt joint piece into the effort that upwards promotes butt joint piece, the spacing hole of second is worn to locate by the upper end that the control lever of being convenient for promoted the stopper.

The utility model discloses further set up to: the two groups of limiting assemblies correspond to the fixing strips respectively and are arranged on two sides of the seal respectively.

By adopting the technical scheme, the connecting strength between the fixing strip and the seal is improved, so that the stability of the seal is improved.

The utility model discloses further set up to: two through connecting rod fixed connection between the control lever, the connecting rod is the level setting, the axis of connecting rod and the axis of control lever set up perpendicularly, two the control lever sets up in the homonymy of connecting rod.

Through adopting above-mentioned technical scheme, drive two control levers synchronous insertion operating space's inside through the control connecting rod, the spacing hole of second is worn to locate by the stopper of the simultaneous drive both sides of being convenient for, realizes the fixed to the seal.

The utility model discloses further set up to: one side of the control rod facing the bottom wall of the U-shaped mounting hole is fixedly provided with an elastic lug, the bottom wall of the U-shaped mounting hole is provided with a limiting groove, and the elastic lug is inserted in the limiting groove.

Through adopting above-mentioned technical scheme, when the tip of control lever removed to a certain position, elastic lug was spacing in the inside of spacing groove, realized the rigidity to the control lever, prevented that the control lever from deviating from operating space.

The utility model discloses further set up to: the inner wall of spacing groove is provided with first cambered surface, the outer wall of elasticity lug sets up to the second cambered surface, the radian of first cambered surface is the same with the radian of second cambered surface, the outer wall butt of elasticity lug in the inner wall of spacing groove.

By adopting the technical scheme, the contact area of the elastic lug and the limiting groove is increased, and the stability of the elastic lug in the limiting groove is improved.

The utility model discloses further set up to: the cross-section of stopper is the rectangle setting, first spacing hole cross-section and the spacing hole cross-section of second all set up to the rectangle with stopper looks adaptation.

By adopting the technical scheme, the stability of the limiting block in the first limiting hole and the second limiting hole is improved, and the limiting block is prevented from rotating in the circumferential direction of the first limiting hole and the second limiting hole.

The utility model discloses further set up to: the automatic turnover mechanism comprises a turnover shaft fixedly arranged at the horizontal end of a U-shaped turnover frame, the turnover shaft is horizontally arranged, the end part of the turnover shaft sequentially penetrates through the side wall of a U-shaped guide frame and the lower end of a U-shaped sliding frame, the turnover shaft is rotatably connected with the U-shaped sliding frame, a first track groove is formed in the side wall of the U-shaped guide frame at the connecting end of the side wall of the U-shaped guide frame and the turnover shaft, the first track groove comprises a first vertical part, a second vertical part and a bent part, the bent part is positioned between the first vertical part and the second vertical part, and the first vertical part and the second vertical part are positioned on the same straight line; the U type roll-over stand has seted up the second orbit groove towards one side in first orbit groove, the second orbit groove is vertical setting, the inside wall of U type leading truck has set firmly the slider, and the slider is pegged graft in second orbit groove and is followed second orbit groove motion, and when trip shaft motion to kink, the U type roll-over stand is followed the motion of the vertical portion of second or first vertical portion after overturning 180 under the effect in slider and second orbit groove.

Through adopting above-mentioned technical scheme, downwards press U type carriage, U type carriage drives trip shaft and the synchronous downstream of seal, supreme motion is followed down along second orbit groove to the slider simultaneously, when the kink of trip shaft motion to first orbit groove, the slider butt in the last lateral wall in second orbit groove, the trip shaft continues the downstream under the press action of U type carriage, move to the vertical portion of second through the kink, because the effect of sheltering from of second orbit groove to the slider, make the slider can not continue the upward movement, second orbit groove uses the slider to drive the trip shaft as the center and rotate 180 this moment, make the setting of slider not hinder the downstream of U type carriage, thereby realize the upset of trip shaft, thereby realize the upset to the seal.

The utility model discloses further set up to: the U-shaped guide frame is provided with two vertically arranged guide grooves, the two guide grooves are respectively arranged on two sides of the first track groove, the U-shaped sliding frame is fixedly provided with a guide block, and the guide block is inserted into the guide grooves.

Through adopting above-mentioned technical scheme, the in-process of pressing down U type carriage, the guide block moves along the length direction of guide way, realizes the guide effect to U type carriage, is convenient for guide U type carriage up-and-down reciprocating motion along the linear direction.

To sum up, the utility model discloses following beneficial effect has:

firstly, when a seal needs to be replaced, the position limitation of a limiting assembly on a connecting block is removed, the connecting block is pulled outwards, the connecting block drives the seal to be separated from a U-shaped mounting hole, so that the connection relation between the seal and a U-shaped turnover frame is removed, a new seal is inserted into the U-shaped mounting hole again, the relative position of the seal is limited under the action of the limiting assembly, the seal and the U-shaped turnover frame are fixedly connected, the replacement of the new seal is completed, and the same square seal can be provided with a plurality of seals for use;

secondly, the connection strength between the fixing strip and the seal is improved by arranging two groups of limiting assemblies, so that the stability of the seal is improved;

and thirdly, the guide block moves along the length direction of the guide groove, so that the U-shaped sliding frame is guided to reciprocate up and down along the linear direction.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a square chapter;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a sectional view taken along line A-A in FIG. 2;

FIG. 4 is a schematic view showing the connection relationship among a U-shaped sliding frame, a U-shaped guide frame, a U-shaped roll-over stand, a return spring, a stamp pad and a stamp in a square seal;

FIG. 5 is a partial exploded view of FIG. 4;

fig. 6 is an enlarged view of a portion B in fig. 5.

In the figure, a 1, U-shaped sliding frame; 11. a top plate; 12. a side plate; 2. a U-shaped guide frame; 21. a transverse plate; 22. a vertical plate; 221. a guide groove; 222. a first track groove; 2221. a first vertical portion; 2222. a second vertical portion; 2223. a bending section; 3. a square seal protective cover; 31. a label cover; 311. an annular clamping groove; 32. a snap-fit cover; 321. an annular fixture block; 322. an elastic bulge; 4. a guide block; 41. a horizontal portion; 42. a plug-in part; 5. a return spring; 6. connecting sleeves; 61. a buffer space; 7. printing pad; 8. stamping; 81. connecting blocks; 811. positioning a groove; 82. a first limit hole; 9. a U-shaped roll-over stand; 91. a transverse mounting plate; 92. a vertical rotating plate; 921. a second track groove; 10. a fixing strip; 101. a U-shaped mounting hole; 102. a second limiting hole; 103. a limiting groove; 1031. a first arc surface; 20. a mounting cavity; 30. a limiting component; 301. a limiting block; 3011. a butting block; 3012. positioning blocks; 302. a control lever; 3021. an elastic bump; 30211. a second arc surface; 3022. a bevel; 40. an operating space; 50. a connecting rod; 60. an automatic turnover mechanism; 601. a turning shaft; 602. a slide block.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, for the utility model discloses a square seal protection device, including square seal protection casing 3, square seal protection casing 3 includes label cover 31 and lock lid 32 that the rectangle set up.

Referring to fig. 2 and 3, a U-shaped sliding frame 1 and a U-shaped guide frame 2 are mounted inside a square seal protective cover 3, a label cover 31 covers the outside of the U-shaped sliding frame 1, the label cover 31 is a rectangular cavity with an opening at the lower end, and the outer wall of the U-shaped sliding frame 1 is fixedly bonded with the inner wall of the label cover 31. The outside of U type leading truck 2 is located to the lock lid 32 cover, the lock lid 32 is the rectangle setting, the lock lid 32 is for having upper end open-ended rectangle die cavity, the lock lid 32 upwards extends in upper end opening part and has annular fixture block 321, annular joint groove 311 has been seted up at lower extreme opening part to label cover 31, annular fixture block 321 is elastic setting, the tip integrated into one piece of annular fixture block 321 has elastic bulge 322, elastic bulge 322 is spacing in the inside in joint groove, lock lid 32 and label cover 31 lock form square chapter protection casing 3.

The U-shaped sliding rack 1 comprises a top plate 11 and two side plates 12, wherein the top plate 11 is horizontally arranged, and the top plate 11 and the two side plates 12 enclose a U shape with an opening at the lower end. U type leading truck 2 includes the diaphragm 21 of a level setting and the riser 22 of two vertical settings, diaphragm 21 and roof 11 parallel arrangement, riser 22 and curb plate 12 parallel arrangement, and the upper end of riser 22 welds in the lower surface of diaphragm 21, and diaphragm 21 and two riser 22 enclose into the U type that has lower extreme open-ended. The U-shaped sliding frame 1 covers the outside of the U-shaped guide frame 2, and the inner wall of the side plate 12 abuts against the outer wall of the vertical plate 22.

Referring to fig. 4 and 5, the U-shaped sliding frame 1 is capable of sliding back and forth along the length direction of the U-shaped guide frame 2. Two vertical setting's guide way 221 has been seted up to U type leading truck 2's riser 22, two guide ways 221 set up respectively in riser 22 both sides around, the welding of the lower extreme of U type carriage 1 curb plate 12 has guide block 4, guide block 4 includes horizontal part 41 and two grafting portions 42, grafting portion 42 and horizontal part 41 set up perpendicularly, horizontal part 41 sets up between two grafting portions 42, the one end that horizontal part 41 was kept away from to grafting portion 42 is pegged graft in the inside of guide way 221, grafting portion 42 is along the vertical length direction reciprocating motion of guide way 221.

A return spring 5 is arranged between the U-shaped sliding frame 1 and the U-shaped guide frame 2, one end of the return spring 5 is fixedly connected with the top wall of the lower surface of the top plate 11, and the other end of the return spring is fixedly connected with the upper surface of the transverse plate 21. The welding of diaphragm 21 upper surface in its center department has adapter sleeve 6, adapter sleeve 6 is vertical setting, reset spring 5's lower extreme is located the inside of adapter sleeve 6, adapter sleeve 6 is seted up and is supplied the buffer space 61 that reset spring 5 compressed, presses down U type carriage 1, and U type carriage 1 extrudees reset spring 5, and reset spring 5 is in the inside deformation of buffer space 61, avoids reset spring 5 to produce the elastic deformation of non-vertical direction.

The stamp pad 7, the stamp 8 and the U-shaped roll-over stand 9 are sequentially arranged in the U-shaped guide frame 2 from top to bottom along the length direction of the vertical plate 22.

The U-shaped roll-over stand 9 comprises a transverse mounting plate 91 and two vertical rotating plates 92, the vertical rotating plates 92 and side plates 12 are arranged in parallel, the transverse mounting plate 91 and a top plate 11 are arranged in parallel, the transverse mounting plate 91 and the vertical rotating plates 92 are enclosed to form a U-shaped structure with one open end, and when the reset spring 5 is in a natural state, the open end of the U-shaped roll-over stand 9 is arranged downwards.

Referring to fig. 3 and 5, the ink pad 7 is horizontally disposed, and two sides of the ink pad 7 are respectively fixedly connected with the inner walls of the vertical plates 22 of the U-shaped guide frame 2. The seal 8 is horizontally arranged between the upper surface of the transverse mounting plate 91 of the U-shaped roll-over stand 9 and the lower surface of the ink pad 7, when the return spring 5 is in a natural state, the upper surface of the seal 8 is in contact with the lower surface of the ink pad 7, and the action of sticking inkpad on the seal 8 is completed to prepare for stamping.

With reference to fig. 5 and 6, two fixing strips 10 are welded on the upper surface of the horizontal mounting plate 91 of the U-shaped roll-over stand 9, the two fixing strips 10 are respectively arranged on two sides of the upper surface of the horizontal mounting plate 91, which are close to the inner wall of the vertical plate 22 of the U-shaped guide frame 2, and an installation cavity 20 for installing a stamp 8 is reserved between the two fixing strips 10. U type mounting hole 101 has all been seted up towards one side of seal 8 to two fixed strips 10, and the open end of two U type mounting holes 101 sets up relatively. When seal 8 is placed in the inside of installation cavity 20, seal 8's both sides are respectively to one side extension that is close to U type mounting hole 101 diapire have connecting block 81, and connecting block 81 is pegged graft inside U type mounting hole 101, and one side butt in U type mounting hole 101 that seal 8 was kept away from to connecting block 81, and connecting block 81's upper surface butt is in the roof of U type mounting hole 101, and connecting block 81's lower surface and U type mounting hole 101's lower side wall interval sets up.

The fixing bar 10 is provided with a limiting assembly 30 for limiting the displacement of the connecting block 81 inside the U-shaped mounting hole 101. The two groups of limiting assemblies 30 correspond to the two groups of limiting assemblies 30 and the connecting blocks 81 one by one, and the connecting blocks 81 on two sides of the stamp 8 are limited in the U-shaped mounting holes 101 respectively.

Spacing subassembly 30 includes the stopper 301 of vertical setting, and stopper 301 is the rectangle setting, and first spacing hole 82 has been seted up to connecting block 81, and the spacing hole 102 of second has been seted up to the roof of U type mounting hole 101, and the first spacing hole 82 cross-section and the spacing hole 102 cross-section of second all set up to the rectangle with stopper 301 looks adaptation. In the process of inserting the connecting block 81 into the U-shaped mounting hole 101, the upper end of the limiting block 301 is located inside the first limiting hole 82, the lower end of the limiting block 301 abuts against the lower side wall of the U-shaped mounting hole 101, and when the connecting block 81 is located inside the U-shaped mounting hole 101 completely, the center of the first limiting hole 82 and the center of the second limiting hole 102 are located on the same straight line. The limiting block 301 extends to one side close to the connecting block 81 to form a positioning block 3012, the connecting block 81 is provided with a positioning groove 811 for preventing the positioning block 3012 from disengaging from the limiting block 301 at the contact end of the connecting block 81 and the limiting block 301, and the positioning block 3012 moves along the vertical length direction of the positioning groove 811.

The stop assembly 30 further comprises a lever 302 for pushing the stop block 301. An operation space 40 for inserting the control rod 302 is reserved between the connecting block 81 and the bottom wall of the U-shaped mounting hole 101, when the end part of the control rod 302 is inserted in the operation space 40, the end part of the control rod 302 is contacted with the lower end of the limiting block 301, the limiting block 301 is sequentially arranged in the first limiting hole 82 and the second limiting hole 102 in a penetrating manner under the pushing action of the control rod 302, when the control rod 302 is completely inserted in the operation space 40, the upper end of the limiting block 301 is positioned in the second limiting hole 102, and the connecting block 81 is limited in the U-shaped mounting hole 101; when the control rod 302 moves out of the operation space 40, the lower end of the limiting block 301 abuts against the lower side wall of the U-shaped mounting hole 101, and the upper end of the limiting block 301 is located inside the first limiting hole 82.

The two control rods 302 are fixedly connected between the ends, which are located outside the operation space 40, through the connecting rod 50, the connecting rod 50 is horizontally arranged, the connecting rod 50 transversely spans the space between the two control rods 302, the axis of the connecting rod 50 and the axis of the control rods 302 are vertically arranged, and the two control rods 302 are arranged on the same side of the connecting rod 50.

Spacing groove 103 has been seted up to one side that the diapire of U type mounting hole 101 is close to connecting rod 50, spacing groove 103 is vertical setting, the open end of spacing groove 103 is towards seal 8, the elastic lug 3021 bonds towards one side of U type mounting hole 101 diapire to control lever 302, elastic lug 3021's outer wall sets up to second cambered surface 30211, the inner wall of spacing groove 103 is provided with first cambered surface 1031, the radian of first cambered surface 1031 is the same with the radian of second cambered surface 30211, when elastic lug 3021 pegs graft in the inside of spacing groove 103, elastic lug 3021's outer wall butt in the inner wall of spacing groove 103.

After the seal 8 is fixedly arranged above the U-shaped turnover frame 9, the U-shaped sliding frame 1 is pressed downwards, and the U-shaped sliding frame 1 drives the U-shaped turnover frame to turn over at 9180 degrees through the automatic turnover mechanism 60.

Referring to fig. 3 and 5, the automatic turnover mechanism 60 includes a turnover shaft 601 connected to the horizontal mounting plate 91 of the U-shaped turnover frame 9 by a key, the turnover shaft 601 and the horizontal mounting plate 91 are arranged in parallel, two ends of the turnover shaft 601 respectively penetrate through the vertical plate 22 of the U-shaped guide frame 2 and the lower end of the side plate 12 of the U-shaped sliding frame 1 in sequence, and the turnover shaft 601 is rotatably connected to the U-shaped sliding frame 1. The vertical plate 22 of the U-shaped guide frame 2 is provided with a first track groove 222 at the connecting end with the turning shaft 601, and the first track groove 222 is arranged in an arc shape.

The first track slot 222 includes a first vertical portion 2221, a second vertical portion 2222, and a bent portion 2223, the bent portion 2223 is located between the first vertical portion 2221 and the second vertical portion 2222, and the first vertical portion 2221 and the second vertical portion 2222 are located on a straight line; second orbit groove 921 has been seted up to the outer wall of the vertical rotor plate 92 of U type roll-over stand 9 and the coincidence department of first vertical portion 2221, and second orbit groove 921 is vertical setting, and the inside wall welding of U type leading truck 2 has slider 602, and when the upper surface of seal 8 and the lower surface contact of ink pad 7, the opening that supplies slider 602 to pass through is seted up to the lower extreme of second orbit groove 921, and the one end that U type leading truck 2 was kept away from to slider 602 is pegged graft inside second orbit groove 921. When pressing down U type carriage 1, U type carriage 1 drives trip shaft 601 and the synchronous downstream of seal 8, supreme motion is down followed along second orbit groove 921 to slider 602 simultaneously, when trip shaft 601 motion to kink 2223 of first orbit groove 222, trip shaft 601 continues downstream to the vertical portion 2222 of second under U type carriage 1's the pressing effect, because the effect of sheltering from of second orbit groove 921 tip to slider 602, make slider 602 can not continue upward movement, second orbit groove 921 uses slider 602 to drive trip shaft 601 as the center and rotates 180 this moment, trip shaft 601 drives the synchronous upset of seal 8.

With reference to fig. 5 and 6, when the contact surface between the stamp 8 and the stamp pad 7 faces downward, the second limiting hole 102 is located below the first limiting hole 82, the contact end between the limiting block 301 and the control rod 302 is welded with the abutment block 3011, the cross section of the abutment block 3011 is trapezoidal, and the lower bottom surface of the abutment block 3011 abuts against the surface of the connecting block 81. The contact end of the control rod 302 with the abutting block 3011 is set to be a slope 3022, and the slope 3022 is parallel to the bevel edge of the abutting block 3011.

The implementation principle of the embodiment is as follows: the U-shaped sliding frame 1 is pressed downwards, the U-shaped sliding frame 1 moves downwards along the length direction of the U-shaped guide frame 2, the U-shaped sliding frame 1 drives the turnover shaft 601 and the stamp 8 to move downwards synchronously, the sliding block 602 moves from bottom to top along the second track groove 921, when the turning shaft 601 moves to the bending part 2223 of the first track slot 222, the slider 602 abuts against the upper side wall of the second track slot 921, the turning shaft 601 continues to move downwards under the pressing action of the U-shaped sliding rack 1, moves to the second vertical part 2222 through the bending part 2223, due to the shielding effect of the second track groove 921 on the sliding block 602, the sliding block 602 cannot move upwards continuously, at this time, the second track groove 921 drives the turning shaft 601 to rotate 180 degrees by taking the sliding block 602 as a center, so as to turn the stamp 8, then the U-shaped turnover frame 9 drives the stamp 8 to continuously move downwards along the length direction of the U-shaped guide frame 2 to form a print on the paper.

Removing external force, U type carriage 1 drives U type roll-over stand 9 and drive the reverse upset of seal 8 when upwards moving to kink 2223, and the lower surface of seal 8 is laminated in the ink pad 7, accomplishes the action that seal 8 is stained with the inkpad and makes preparation for the stamp.

When seal 8 needs to be replaced, outwards stimulate connecting rod 50, connecting rod 50 drives two control levers 302 and removes the spacing to stopper 301, outwards stimulate connecting block 81, connecting block 81 drives seal 8 and deviates from U type mounting hole 101, thereby remove the relation of connection of seal 8 and U type roll-over stand 9, reinsert new seal 8 in the inside of U type mounting hole 101, limit seal 8's relative position under spacing subassembly 30's effect, realize seal 8 and U type roll-over stand 9's fixed connection, thereby accomplish new seal 8's change, make same square seal can be equipped with a plurality of seals 8 and use.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A square seal protection device comprises a U-shaped sliding frame (1) and a U-shaped guide frame (2), wherein the open end of the U-shaped sliding frame (1) and the open end of the U-shaped guide frame (2) are arranged downwards, the U-shaped sliding frame (1) is covered outside the U-shaped guide frame (2), the U-shaped sliding frame (1) slides in a reciprocating manner along the length direction of the U-shaped guide frame (2), a reset spring (5) is arranged between the U-shaped sliding frame (1) and the U-shaped guide frame (2), one end of the reset spring (5) is fixedly connected with the top wall of the U-shaped sliding frame (1), the other end of the reset spring is fixedly connected with the top wall of the U-shaped guide frame (2), a stamp pad (7), a stamp (8) and a U-shaped turnover frame (9) are sequentially arranged from top to bottom on the U-shaped guide frame (2), the stamp pad (7) is fixedly connected with the U-shaped guide frame, the open end of the U-shaped turnover frame (9) is arranged downwards, an automatic turnover mechanism (60) for driving the U-shaped turnover frame (9) to rotate is arranged between the U-shaped sliding frame (1) and the U-shaped guide frame (2), is characterized in that two fixing strips (10) are fixedly arranged on the upper surface of a horizontal part (41) of the U-shaped turnover frame (9), the two fixing strips (10) are respectively arranged on two sides of the horizontal part (41) of the U-shaped turnover frame (9) close to the inner wall of the U-shaped guide frame (2), the fixing strip (10) is provided with U-shaped mounting holes (101), the open ends of the two U-shaped mounting holes (101) are arranged oppositely, a connecting block (81) extends from one side of the seal (8) close to the U-shaped mounting hole (101), the connecting block (81) is inserted into the U-shaped mounting hole (101), and the fixing strip (10) is provided with a limiting component (30) used for limiting the displacement of the connecting block (81) in the U-shaped mounting hole (101).

2. The square seal protection device according to claim 1, wherein the limiting assembly (30) comprises a vertically arranged limiting block (301), the connecting block (81) is provided with a first limiting hole (82), the top wall of the U-shaped mounting hole (101) is provided with a second limiting hole (102), when the connecting block (81) is positioned inside the U-shaped mounting hole (101), the center of the first limiting hole (82) and the center of the second limiting hole (102) are positioned on a straight line, and the upper end of the limiting block (301) is sequentially arranged in the first limiting hole (82) and the second limiting hole (102) in a penetrating manner; the limiting assembly (30) further comprises a control rod (302) used for keeping the limiting block (301) to penetrate through the second limiting hole (102), an operation space (40) for the control rod (302) to insert is reserved between the connecting block (81) and the bottom wall of the U-shaped mounting hole (101), the lower end of the limiting block (301) abuts against the side wall of the control rod (302), when the control rod (302) moves out of the operation space (40), the lower end of the limiting block (301) abuts against the bottom wall of the U-shaped mounting hole (101), and the upper end of the limiting block (301) is located inside the first limiting hole (82); the lower extreme of stopper (301) sets firmly butt piece (3011), butt piece (3011) are the level setting, and when the upper end of stopper (301) was located the inside of spacing hole of second (102), the upper surface butt in the lower surface of connecting block (81) of butt piece (3011).

3. A square seal protection device according to claim 2, wherein the cross-section of the abutting block (3011) is trapezoidal, the contact end of the control rod (302) with the abutting block (3011) is provided with an inclined surface (3022), and the inclined surfaces (3022) and the inclined edges of the abutting block (3011) are arranged in parallel.

4. A square seal protection device according to claim 2, wherein said limiting members (30) are two groups, two groups of said limiting members (30) correspond to said fixing strips (10), and two groups of said limiting members (30) are respectively disposed on two sides of the seal (8).

5. A square seal protection device according to claim 4, wherein the two control rods (302) are fixedly connected through a connecting rod (50), the connecting rod (50) is horizontally arranged, the axis of the connecting rod (50) and the axis of the control rod (302) are vertically arranged, and the two control rods (302) are arranged on the same side of the connecting rod (50).

6. The square seal protection device according to claim 2, wherein an elastic bump (3021) is fixedly arranged on one side of the control rod (302) facing the bottom wall of the U-shaped mounting hole (101), a limiting groove (103) is formed in the bottom wall of the U-shaped mounting hole (101), and the elastic bump (3021) is inserted into the limiting groove (103).

7. A square seal protection device according to claim 6, wherein the inner wall of the limit groove (103) is provided with a first arc surface (1031), the outer wall of the elastic lug (3021) is provided with a second arc surface (30211), the arc degree of the first arc surface (1031) is the same as that of the second arc surface (30211), and the outer wall of the elastic lug (3021) abuts against the inner wall of the limit groove (103).

8. A square seal protection device according to claim 2, wherein the cross section of the limiting block (301) is rectangular, and the cross section of the first limiting hole (82) and the cross section of the second limiting hole (102) are both rectangular and adapted to the limiting block (301).

9. A square seal protection device according to claim 1, characterized in that the automatic turning mechanism (60) comprises a turning shaft (601) fixed at the horizontal end of the U-shaped turning frame (9), the turning shaft (601) is horizontally arranged, the end part of the turning shaft (601) sequentially penetrates through the side wall of the U-shaped guide frame (2) and the lower end of the U-shaped sliding frame (1), the turnover shaft (601) is rotationally connected with the U-shaped sliding frame (1), a first track groove (222) is formed in the side wall of the U-shaped guide frame (2) at the connecting end of the U-shaped guide frame and the turnover shaft (601), the first track groove (222) comprises a first vertical part (2221), a second vertical part (2222) and a bent part (2223), wherein the bent part (2223) is positioned between the first vertical part (2221) and the second vertical part (2222), and the first vertical part (2221) and the second vertical part (2222) are positioned on the same straight line; second orbit groove (921) have been seted up towards one side of first orbit groove (222) in U type roll-over stand (9), second orbit groove (921) is vertical setting, the inside wall of U type leading truck (2) has set firmly slider (602), and slider (602) are pegged graft in second orbit groove (921) and are followed second orbit groove (921) and move, and when trip shaft (601) moved to kink (2223), U type roll-over stand (9) overturn 180 back along the motion of the vertical portion of second (2222) or first vertical portion (2221) under the effect of slider (602) and second orbit groove (921).

10. The square seal protection device according to claim 9, wherein the U-shaped guide frame (2) is provided with two vertically arranged guide grooves (221), the two guide grooves (221) are respectively arranged on two sides of the first track groove (222), the U-shaped sliding frame (1) is fixedly provided with the guide block (4), and the guide block (4) is inserted into the guide grooves (221).