CN216741041U

CN216741041U - Lock body convenient to open and having new structure

Info

Publication number: CN216741041U
Application number: CN202123026712.5U
Authority: CN
Inventors: 王金燕
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-12-02
Filing date: 2021-12-02
Publication date: 2022-06-14
Anticipated expiration: 2031-12-02

Abstract

The utility model relates to a tool to lock technical field, especially be a conveniently open new construction lock body, including the panel, the bottom of panel is connected with lower cover and upper cover through the support frame, the lower cover is connected on the upper cover, safety plate square tongue hole, square tongue hole and oblique tongue hole have from left to right been seted up in proper order on the terminal surface of panel, the utility model discloses a set up the gyro wheel cover on the slide and contact with well shifting fork piece, utilize the smooth cylinder surface of gyro wheel cover to contact with well shifting fork piece, reduce the friction force of gyro wheel cover and well shifting fork piece, thereby well shifting fork piece rotation promotes the gyro wheel cover to move, namely drives the slide and the structure relative motion of corresponding connection on the slide, has realized easily conveniently locking or opening the tool to lock, thereby has reduced the noise when the tool to lock uses; the wear between the connecting pieces is reduced, the service life is prolonged, and when the lockset is unlocked or locked, the labor-saving effect is achieved, so that the lockset is convenient for people to use, and the service performance of the lockset is improved.

Description

Lock body convenient to open and having new structure

Technical Field

The utility model relates to a tool to lock technical field specifically is a conveniently open new construction lock body.

Background

The door lock is a hardware installed on the door for keeping the safety of the room or the personal storage space, the basic structure of the door lock comprises a lock tongue which can perform telescopic motion under the action of external force and is matched with a buckle box arranged on a door frame, the door can be prevented from being opened under the unexpected conditions of wind blowing and the like, when the lock is unlocked or locked at present, a shifting fork sheet in the lock stirs a single shifting sheet fixedly arranged on a sliding plate, so that the sliding plate and a structure correspondingly connected on the sliding plate are driven to move relatively, the lock is locked or unlocked, but because the single shifting sheet is in a block shape, when the lock is locked or unlocked, the contact friction force between the shifting fork sheet and the single shifting sheet on the sliding plate is large, and therefore, the lock is unlocked with large noise; the wearing and tearing between the connecting piece are fast, have reduced life to and when unblanking or locking the tool to lock, use hard, thereby inconvenient people use, reduced the performance of tool to lock.

To sum up, the utility model discloses a design a conveniently open new construction lock body and solve the problem that exists.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a conveniently open new construction lock body to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a lock body with a novel structure convenient to open comprises a panel, wherein the bottom of the panel is connected with a lower cover and an upper cover through a support frame, the lower cover is connected onto the upper cover, a safety plate square tongue hole, a square tongue hole and an inclined tongue hole are sequentially formed in the end face of the panel from left to right, a square tongue is installed on the inner wall of the square tongue hole, a main tongue plate is fixedly connected to the bottom of the square tongue hole and positioned inside the lower cover, two groups of locking plate guide nails are obliquely and symmetrically arranged on the front side wall and the rear side wall of the main tongue plate and are respectively connected inside a guide groove formed in a ground rod, a main tongue guide nail chute is formed in the center of the main tongue plate, a main tongue guide nail is installed inside the main tongue guide nail chute, two ends of the main tongue guide nail are respectively connected onto the opposite side walls of the lower cover and the upper cover, a push nail is fixedly arranged on the upper left side of the main tongue guide nail chute, and is installed inside the push nail chute, the other end of the push plate is connected with an upper shifting piece which is fixedly sleeved on the outer wall of an iron shifting fork, a middle shifting fork piece is fixedly sleeved on the outer wall of the iron shifting fork and close to the inner wall of a lower cover, a shifting block is correspondingly connected on the middle shifting fork piece and close to the push plate, the shifting block is sleeved on the outer wall of a first shifting block nail, a shifting rod is sleeved on the outer wall of the first shifting block nail and positioned between the shifting block and the lower cover, a spring nail chute is formed in the other end of the shifting rod, a spring nail is connected inside the spring nail chute, the spring nail is fixedly installed on the rear side wall of the main tongue plate, a roller sleeve is arranged on one side of the middle shifting fork piece and opposite to the shifting block, the roller sleeve is connected onto a sliding plate through a roller nail, a sliding plate sleeve is sleeved at the center of the sliding plate, the sliding plate sleeve is connected onto a shell of the lower cover through an installation nail, and the other end of the sliding plate is clamped onto the main tongue plate, a positioning column is fixedly arranged on one side wall of the main tongue plate and at the joint of the sliding plate and the main tongue plate, and a second shifting block nail is arranged on the lower right side of the positioning column and between the sliding plate and the middle shifting fork piece.

As the utility model discloses preferred scheme, the lock core is installed in the left side correspondence of main hyoplastron, the lock core rotates to be connected in the lock core mounting hole of offering under covering, the left side of lock core is equipped with the rupture plate, it is connected with the insurance cam to correspond on the rupture plate, the insurance cam is installed on the lateral wall that lower cover and upper cover are relative, the one end fixed connection of insurance cam is at rupture plate square tongue, rupture plate square tongue sliding connection is in the inside in rupture plate square tongue hole, the insurance nail guide way has been seted up on the rupture plate, the inside sliding connection of insurance nail guide way has the insurance nail, the both ends fixed mounting of insurance nail is on the lateral wall that lower cover and upper cover are relative, go up one side of plectrum and lie in fixed mounting between lower cover and the upper cover have oblique tongue subassembly, wherein oblique tongue subassembly includes the inside oblique tongue of sliding connection at oblique tongue hole.

As the utility model discloses preferred scheme, the support frame is established to U type support, the support frame sets up the multiunit to between even connection lower cover and the upper cover, the other end of world pole runs through the lower cover to extend to the outside of lower cover, it is inside at the through-hole of push pedal to go up the plectrum joint, the both ends of iron shift fork are rotated respectively and are connected inside the mounting hole that lower cover and upper cover relative lateral wall were seted up, the shifting block passes through the screw connection on the driving lever.

As the utility model discloses preferred scheme, the connected mode of square tongue and square tongue hole is sliding connection, and is two sets of the jam plate is led the nail and is sliding connection with the connected mode of the guide way that world pole was seted up respectively, the connected mode of main tongue guide nail and main tongue guide nail spout is upper and lower sliding connection, it is sliding connection with the connected mode that promotes the nail spout to promote the nail, shifting block, driving lever are connected for rotating with the connected mode of first shifting block nail respectively, the connected mode of spring nail and spring nail spout is sliding connection, the gyro wheel cover passes through the gyro wheel nail and is connected for rotating with the connected mode of slide, the slide is connected for rotating with the connected mode of slide cover.

As the utility model discloses preferred scheme, the reference column passes through whirlwind wheel torsional spring and connects on the second shifting block nail, the slide around the lateral wall and be located the fixed location deflector that is provided with of oblique symmetry between reference column and the second shifting block nail, the top of slide and be located the fixed slide spring that has cup jointed on the outer wall of slide cover, wherein the one end of slide spring is connected and is covered under, and the other end is connected on the fixed spring drag hook rivet that sets up on the slide.

As the utility model discloses preferred scheme, be located the fixed slide overlap joint that is provided with of slide and main tongue plate junction on the slide, be provided with main tongue plate overlap joint on the lateral wall about main tongue plate and correspond with the slide overlap joint, main tongue plate overlap joint sets up two sets ofly at least, forms positioning groove each other, and wherein positioning groove is clearance fit with the cooperation mode of slide overlap joint, evenly be provided with the arch on the lateral wall of well declutch shift piece, wherein the arch is the overlap joint structure with shifting block, roller sleeve respectively, install the lock handle on the iron shift fork.

Compared with the prior art, the beneficial effects of the utility model are that:

1. in the utility model, the roller sleeve is arranged on the sliding plate to be in contact with the middle shifting fork piece, the smooth cylindrical surface of the roller sleeve is in contact with the middle shifting fork piece, friction force between the roller sleeve and the middle shifting fork piece is reduced, so that the middle shifting fork piece rotates to push the roller sleeve to move, and the sliding plate are driven to correspondingly connected structure relative motion, so that the lockset is easily and conveniently locked or unlocked; the wear between the connecting pieces is reduced, the service life is prolonged, and when the lockset is unlocked or locked, the labor-saving effect is achieved, so that the lockset is convenient for people to use, and the service performance of the lockset is improved.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic diagram of the overall explosion structure of FIG. 1 according to the present invention;

FIG. 3 is a schematic view of the present invention in a partially assembled state as shown in FIG. 2;

FIG. 4 is a schematic view of the present invention in a partially assembled state shown in FIG. 2;

FIG. 5 is a schematic view of the partially assembled state of the present invention in FIG. 2;

FIG. 6 is a schematic diagram of the present invention in a partially assembled state as shown in FIG. 2;

FIG. 7 is a schematic view of the connection structure of the main tongue plate of the present invention;

FIG. 8 is a schematic view of the connection structure of the sliding plate of the present invention;

FIG. 9 is a schematic view of the connection structure of the panel portions of the present invention;

FIG. 10 is a schematic view of a connection structure of the iron fork of the present invention;

FIG. 11 is a schematic view of the connection structure of the lower cover part of the present invention;

fig. 12 is a schematic view of the connection structure of the lower cover portion of the present invention.

In the figure: 1. a panel; 2. a support frame; 3. a lower cover; 4. an upper cover; 5. a square tongue hole of the safety plate; 6. a square tongue hole; 7. an oblique tongue hole; 8. a square tongue; 9. a main tongue plate; 10. locking plate guide pins; 11. a top and bottom pole; 12. a guide groove; 13. a main tongue guide pin chute; 14. a main tongue guide pin; 15. Pushing the nail; 16. pushing the plate; 17. an upper shifting sheet; 18. an iron shifting fork; 19. a middle shifting fork piece; 20. Shifting blocks; 21. a first shifting block nail; 22. a deflector rod; 23. a spring pin chute; 24. a spring pin; 25. a roller sleeve; 26. roller nails; 27. a slide plate; 28. a slide plate sleeve; 29. a second shifting block nail; 30. a lock cylinder; 31. a safety plate; 32. a safety cam; 33. a safety plate square tongue; 34. a safety pin guide groove; 35. a safety pin; 36. positioning a guide plate; 37. a skateboard lap joint; 38. a main tongue plate lap joint; 101. pushing the nail chute; 102. and a positioning column.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the scope of the present invention based on the embodiments of the present invention.

In order to facilitate understanding of the invention, the invention will be described more fully hereinafter with reference to the accompanying drawings, in which several embodiments of the invention are shown, but which can be embodied in many different forms and are not limited to the embodiments described herein, but rather are provided for the purpose of making the disclosure more thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present, that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present, and that the terms "vertical", "horizontal", "left", "right" and the like are used herein for descriptive purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the terms used herein in the specification of the present invention are for the purpose of describing particular embodiments only and are not intended to limit the present invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1-12, the present invention provides a technical solution:

a lock body with a novel structure convenient to open comprises a panel 1, the bottom of the panel 1 is connected with a lower cover 3 and an upper cover 4 through a support frame 2, the lower cover 3 is connected with the upper cover 4, the end surface of the panel 1 is sequentially provided with a safety plate square tongue hole 5, a square tongue hole 6 and an inclined tongue hole 7 from left to right, the inner wall of the square tongue hole 6 is provided with a square tongue 8, the bottom of the square tongue hole 6 is fixedly connected with a main tongue plate 9 positioned in the lower cover 3, the front side wall and the rear side wall of the main tongue plate 9 are obliquely and symmetrically provided with two groups of locking plate guide nails 10, the two groups of locking plate guide nails 10 are respectively connected in a guide groove 12 arranged on a ground rod 11, the center of the main tongue plate 9 is provided with a main tongue guide nail slide groove 13, the inside of the main tongue guide nail slide groove 13 is provided with a main tongue guide nail 14, the two ends of the main tongue guide nail 14 are respectively connected on the opposite side walls of the lower cover 3 and the upper cover 4, the left upper side of the main tongue guide nail slide groove 13 is fixedly provided with a pushing nail 15, the push nail 15 is arranged in a push nail sliding groove 101 formed in the push plate 16, the other end of the push plate 16 is connected to an upper shifting piece 17, the upper shifting piece 17 is fixedly sleeved on the outer wall of an iron shifting fork 18, a middle shifting fork piece 19 is fixedly sleeved on the outer wall of the iron shifting fork 18 and close to the inner wall of the lower cover 3, a shifting block 20 is correspondingly connected to the middle shifting fork piece 19 and close to the push plate 16, the shifting block 20 is sleeved on the outer wall of a first shifting block nail 21, a shifting rod 22 is sleeved between the shifting block 20 and the lower cover 3 and on the outer wall of the first shifting block nail 21, a spring nail sliding groove 23 is formed in the other end of the shifting rod 22, a spring nail 24 is connected to the inner portion of the spring nail sliding groove 23, the spring nail 24 is fixedly arranged on the rear side wall of the main tongue plate 9, a roller sleeve 25 is arranged on one side of the middle shifting fork piece 19 and opposite to the roller block 20, the roller sleeve 25 is connected to a sliding plate 27 through a roller nail 26, a sliding plate sleeve 28 is sleeved at the center of the sliding plate 27, the sliding plate sleeve 28 is connected to the shell of the lower cover 3 through a mounting nail, the other end of the sliding plate 27 is clamped on the main tongue plate 9, a positioning column 102 is fixedly arranged on one side wall of the main tongue plate 9 and located at the joint of the sliding plate 27 and the main tongue plate 9, and a second shifting block nail 29 is arranged on the lower right side of the positioning column 102 and located between the sliding plate 27 and the middle shifting fork piece 19.

As a further preferable proposal of the utility model, a lock core 30 is correspondingly arranged on the left side of the main tongue plate 9, the lock core 30 is rotationally connected in a lock core mounting hole arranged on the lower cover 3, the left side of lock core 30 is equipped with insurance board 31, it is connected with insurance cam 32 to correspond on insurance board 31, insurance cam 32 installs on the lateral wall that lower cover 3 and upper cover 4 are relative, insurance cam 32's one end fixed connection is in insurance board square tongue 33, insurance board square tongue 33 sliding connection is in the inside of insurance board square tongue hole 5, insurance nail guide way 34 has been seted up on insurance board 31, the inside sliding connection of insurance nail guide way 34 has insurance nail 35, the both ends fixed mounting of insurance nail 35 is on the lateral wall that lower cover 3 and upper cover 4 are relative, go up the one side of plectrum 17 and lie in fixed mounting between lower cover 3 and the upper cover 4 and have the latch bolt subassembly, wherein the latch bolt subassembly includes the inside latch bolt of sliding connection at latch bolt hole 7.

As the utility model discloses further preferred scheme, support frame 2 is established to U type support, and support frame 2 sets up the multiunit to between even connection lower cover 3 and the upper cover 4, the other end of world pole 11 runs through lower cover 3, and extend to the outside of lower cover 3, go up plectrum 17 joint inside the through-hole of push pedal 16, inside the mounting hole of connecting that the relative lateral wall was seted up at lower cover 3 and upper cover 4 was rotated respectively at the both ends of iron shift fork 18, shifting block 20 passes through the screw connection on driving lever 22. As a further preferred aspect of the present invention, the connection mode of the square tongue head 8 and the square tongue hole 6 is a sliding connection, the connection mode of the two sets of lock plate guide nails 10 and the guide groove 12 set up by the top and bottom rods 11 is a sliding connection, the connection mode of the main tongue guide nail 14 and the main tongue guide nail chute 13 is a vertical sliding connection, the connection mode of the push nail 15 and the push nail chute 101 is a sliding connection, the shift block 20 and the shift lever 22 are respectively connected with the first shift block nail 21 in a rotating manner, the connection mode of the spring nail 24 and the spring nail chute 23 is a sliding connection, the connection mode of the roller sleeve 25 and the slide plate 27 through the roller nail 26 is a rotating connection, and the connection mode of the slide plate 27 and the slide plate sleeve 28 is a rotating connection.

As the utility model discloses further preferred scheme, reference column 102 passes through whirlwind wheel torsional spring and connects on second shifting block nail 29, slide 27 around the lateral wall and lie in the fixed location deflector 36 that is provided with of oblique symmetry between reference column 102 and the second shifting block nail 29, slide 27's top and lie in the fixed slide spring that has cup jointed on slide 28's the outer wall, wherein slide spring's one end is connected on lower cover 3, the other end connect on slide 27 the fixed spring drag hook rivet that sets up.

As the utility model discloses further preferred scheme, on the slide 27 and lie in slide 27 and the fixed slide overlap joint 37 that is provided with of main tongue board 9 junction, on the lateral wall about main tongue board 9 and correspond with slide overlap joint 37 and be provided with main tongue board overlap joint 38, main tongue board overlap joint 38 sets up at least two sets ofly, form positioning groove each other, wherein positioning groove is clearance fit with slide overlap joint 37's cooperation mode, evenly be provided with the arch on the lateral wall of well declutch shift piece 19, wherein the arch respectively with shifting block 20, roller sleeve 25 is the overlap joint structure, install the lock handle on the iron shift fork 18.

The utility model discloses work flow: when the door lock is locked, the lock handle is rotated anticlockwise under the action of the lock handle arranged on the iron shifting fork 18, at the moment, the two ends of the iron shifting fork 18 are respectively connected in a rotating way in the mounting holes arranged on the opposite side walls of the lower cover 3 and the upper cover 4, the iron shifting fork 18 is transferred to rotate, namely, the upper shifting piece 17 and the middle shifting piece 19 are simultaneously driven to rotate in the anticlockwise direction, when the middle shifting piece 19 rotates, bulges are uniformly arranged on the side wall of the middle shifting piece 19, wherein the bulges are respectively in a lap joint structure with the shifting block 20 and the roller sleeve 25, the connection mode of the square tongue 8 and the square tongue hole 6 is sliding connection, the connection modes of the two groups of locking plate guide nails 10 and the guide groove 12 arranged on the ground rod 11 are respectively sliding connection, the connection modes of the main tongue guide nail 14 and the main tongue guide nail slide groove 13 are in up-down sliding connection, the connection mode of the push nail 15 and the push nail slide groove 101 is sliding connection, the shifting block 20 and the shifting lever 22 are respectively connected with the first shifting block nail 21 in a rotating manner, the spring nail 24 is connected with the spring nail chute 23 in a sliding manner, the roller sleeve 25 is connected with the sliding plate 27 in a rotating manner through the roller nail 26, the sliding plate 27 is connected with the sliding plate sleeve 28 in a rotating manner, transmission is performed layer by layer, the middle shifting fork piece 19 shifts the shifting block 20 and the shifting lever 22 connected with the shifting block 20 to rotate simultaneously, namely the shifting lever 22 is driven to slide relatively on the spring nail 24, the roller sleeve 25 is shifted simultaneously, the sliding plate 27 is driven to rotate relatively to the sliding plate sleeve 28, meanwhile, the upper shifting piece 17 rotates anticlockwise, namely the pushing plate 16 is driven to move relatively, so that the pushing plate 16 and the shifting lever 22 move relative to the main tongue plate 9, namely the main tongue plate 9 is driven to extend out from the square tongue hole 6, as shown in fig. 3, 4 and 5, in the locking process, the positioning column 102 is connected with the second shifting block nail 29 through the cyclone wheel, the main tongue plate 9 is positioned to avoid the main tongue plate 9 from falling back in the locking process, a sliding plate spring is fixedly sleeved on the outer wall of the sliding plate sleeve 28 and above the sliding plate 27, one end of the sliding plate spring is connected on the lower cover 3, the other end of the sliding plate spring is connected under the action of a spring hook rivet fixedly arranged on the sliding plate 27 to drive the sliding plate 27 to reset, at the moment, a sliding plate lap joint 37 is fixedly arranged on the sliding plate 27 and at the joint of the sliding plate 27 and the main tongue plate 9, main tongue plate lap joints 38 are arranged on the left side wall and the right side wall of the main tongue plate 9 and correspond to the sliding plate lap joint 37, at least two groups of the main tongue plate lap joints 38 are arranged to form a positioning groove mutually, wherein the matching mode of the positioning groove and the sliding plate lap joint 37 is clearance fit, when the sliding plate 27 rotates to a certain height, the sliding plate lap joint 37 is clamped in the positioning groove at the bottommost of the square tongue 8, namely, the locking is completed, the operation is reversed, namely, the lock is unlocked, in the process, the roller sleeve 25 is arranged on the sliding plate to be contacted with the middle shifting fork piece 19, the smooth cylindrical surface of the roller sleeve 25 is contacted with the middle shifting fork piece 19, the friction force between the roller sleeve 25 and the middle shifting fork piece 19 is reduced, so that the middle shifting fork piece 19 rotates to push the roller sleeve 25 to move, namely, the sliding plate 27 and the structure correspondingly connected on the sliding plate 27 are driven to move relatively, the lock is easily and conveniently locked or unlocked, the problem that when the lock is unlocked or locked at present, the single shifting piece fixedly arranged on the sliding plate is shifted by the middle shifting fork piece of the lock, so that the structure correspondingly connected on the sliding plate and the sliding plate are driven to move relatively, the lock is locked or unlocked is solved, but because the single shifting piece is in a block shape, the contact friction force between the shifting fork piece and the single shifting piece on the sliding plate is large when the lock is locked or unlocked, thereby reducing the noise when the lockset is used; the wear between the connecting pieces is reduced, the service life is prolonged, and when the lockset is unlocked or locked, the labor-saving effect is achieved, so that the lockset is convenient for people to use, and the service performance of the lockset is improved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a conveniently open new construction lock body, includes panel (1), its characterized in that: the bottom of the panel (1) is connected with a lower cover (3) and an upper cover (4) through a support frame (2), the lower cover (3) is connected onto the upper cover (4), a safety plate square tongue hole (5), a square tongue hole (6) and an inclined tongue hole (7) are sequentially formed in the end face of the panel (1) from left to right, a square tongue (8) is installed on the inner wall of the square tongue hole (6), the bottom of the square tongue hole (6) is fixedly connected with a main tongue plate (9) inside the lower cover (3), two groups of locking plate guide nails (10) are symmetrically arranged on the front side wall and the rear side wall of the main tongue plate (9) in an inclined mode, the two groups of locking plate guide nails (10) are respectively connected inside a guide groove (12) formed in a top-bottom rod (11), a main tongue guide nail chute (13) is formed in the center of the main tongue plate (9), and a main tongue guide nail (14) is installed inside the main tongue guide nail guide chute (13), the two ends of the main tongue guide nail (14) are respectively connected to the opposite side walls of the lower cover (3) and the upper cover (4), a push nail (15) is fixedly arranged on the upper left side of the main tongue guide nail sliding groove (13), the push nail (15) is installed inside a push nail sliding groove (101) formed in a push plate (16), the other end of the push plate (16) is connected to an upper shifting piece (17), the upper shifting piece (17) is fixedly sleeved on the outer wall of an iron shifting fork (18), a middle shifting fork piece (19) is fixedly sleeved on the outer wall of the iron shifting fork (18) and close to the inner wall of the lower cover (3), a shifting block (20) is correspondingly connected to the middle shifting fork piece (19) and close to the push plate (16), the shifting block (20) is sleeved on the outer wall of a first shifting block nail (21), a shifting rod (22) is sleeved on the outer wall of the first shifting block nail (21) and positioned between the shifting block (20) and the lower cover (3), the other end of the deflector rod (22) is provided with a spring nail sliding chute (23), a spring nail (24) is connected inside the spring nail sliding chute (23), the spring nail (24) is fixedly arranged on the rear side wall of the main tongue plate (9), a roller sleeve (25) is arranged on one side of the middle shifting fork piece (19) and opposite to the shifting block (20), the roller sleeve (25) is connected to the sliding plate (27) through a roller nail (26), a sliding plate sleeve (28) is sleeved at the center of the sliding plate (27), the sliding plate sleeve (28) is connected on the shell of the lower cover (3) through a mounting nail, the other end of the sliding plate (27) is clamped on the main tongue plate (9), a positioning column (102) is fixedly arranged on one side wall of the main tongue plate (9) and positioned at the connecting part of the sliding plate (27) and the main tongue plate (9), and a second shifting block nail (29) is arranged on the right lower side of the positioning column (102) and between the sliding plate (27) and the middle shifting fork piece (19).

2. The lock body of claim 1, which is convenient to open and has a new structure, and is characterized in that: the lock core (30) is correspondingly installed on the left side of the main tongue plate (9), the lock core (30) is rotatably connected in a lock core installation hole formed in the lower cover (3), a safety plate (31) is assembled on the left side of the lock core (30), a safety cam (32) is correspondingly connected to the safety plate (31), the safety cam (32) is installed on the opposite side wall of the lower cover (3) and the upper cover (4), one end of the safety cam (32) is fixedly connected to a safety plate square tongue (33), the safety plate square tongue (33) is slidably connected to the inside of a safety plate square tongue hole (5), a safety nail guide groove (34) is formed in the safety plate (31), a safety nail (35) is slidably connected to the inside of the safety nail guide groove (34), and two ends of the safety nail (35) are fixedly installed on the opposite side wall of the lower cover (3) and the upper cover (4), and an oblique tongue component is fixedly arranged on one side of the upper shifting sheet (17) and between the lower cover (3) and the upper cover (4), wherein the oblique tongue component comprises an oblique tongue which is connected inside the oblique tongue hole (7) in a sliding manner.

3. The lock body of claim 1, which is convenient to open and has a new structure, and is characterized in that: support frame (2) are established to U type support, support frame (2) set up the multiunit to between even connection lower cover (3) and upper cover (4), the other end of world pole (11) runs through lower cover (3) to extend to the outside of lower cover (3), it is inside at the through-hole of push pedal (16) to go up plectrum (17) joint, the both ends of iron shift fork (18) are rotated respectively and are connected inside the mounting hole of seting up at lower cover (3) and upper cover (4) relative lateral wall, shifting block (20) are through the screw connection on driving lever (22).

4. The lock body of claim 1, which is convenient to open and has a new structure, and is characterized in that: the connecting mode of the square tongue (8) and the square tongue hole (6) is sliding connection, the connecting modes of the two groups of lock plate guide nails (10) and the guide groove (12) formed in the top and bottom rod (11) are sliding connection respectively, the connecting modes of the main tongue guide nail (14) and the main tongue guide nail sliding groove (13) are up-and-down sliding connection, the connecting modes of the push nail (15) and the push nail sliding groove (101) are sliding connection, the shifting block (20) and the shifting rod (22) are respectively connected with the first shifting block nail (21) in a rotating mode, the connecting modes of the spring nail (24) and the spring nail sliding groove (23) are sliding connection, the connecting mode of the roller sleeve (25) and the sliding plate (27) through the roller nail (26) is rotating connection, and the connecting mode of the sliding plate (27) and the sliding plate sleeve (28) is rotating connection.

5. The lock body with the novel structure convenient to open as claimed in claim 1, wherein: reference column (102) are connected on second shifting block nail (29) through whirlwind wheel torsional spring, the lateral wall is fixed being provided with location deflector (36) to the skew symmetry between reference column (102) and second shifting block nail (29) around slide (27) and being located, the top of slide (27) is fixed the cup jointing has the slide spring on being located the outer wall of slide cover (28), and wherein the one end of slide spring is connected on lower cover (3), and the other end is connected on the spring drag hook rivet of fixed setting on slide (27).

6. The lock body of claim 1, which is convenient to open and has a new structure, and is characterized in that: the novel iron shifting fork is characterized in that a sliding plate lap joint (37) is fixedly arranged at the joint of the sliding plate (27) and the main tongue plate (9), the left side wall and the right side wall of the main tongue plate (9) are correspondingly provided with the main tongue plate lap joint (38) with the sliding plate lap joint (37), the main tongue plate lap joint (38) is at least provided with two groups, positioning grooves are formed between the two groups, the matching mode of the positioning grooves and the sliding plate lap joint (37) is clearance fit, bulges are uniformly arranged on the side wall of the middle shifting fork piece (19), the bulges are respectively in lap joint with the shifting block (20) and the roller sleeve (25), and a lock handle is arranged on the iron shifting fork (18).