CN215332005U

CN215332005U - Novel mortise lock

Info

Publication number: CN215332005U
Application number: CN202120662719.7U
Authority: CN
Inventors: 林金伦; 林柳成; 陈浩权
Original assignee: Zhejiang Qingtaiheng Technology Co ltd
Current assignee: Zhejiang Qingtaiheng Technology Co ltd
Priority date: 2021-03-31
Filing date: 2021-03-31
Publication date: 2021-12-28
Anticipated expiration: 2031-03-31

Abstract

The application relates to a novel mortise lock, which comprises a lock body and a handle, wherein a single-bolt assembly is arranged in the lock body, a pressing piece is arranged in the lock body in a sliding manner, and a poke rod is arranged on the pressing piece; fixing seats are fixedly arranged on both sides of the lock body; the handle is provided with a swing rod, the swing rod is hinged to the fixed seat, and the end part of the swing rod is inserted into the lock body and is linked with the poke rod; a shifting piece and a transmission piece which are linked with the single-tongue component are hinged in the lock body, the shifting piece is provided with a shifting block which is linked with the pressing piece, and the transmission piece is provided with a transmission block which is linked with the pressing piece; the transmission block and the shifting block are respectively abutted to two opposite sliding directions of the pressing piece. The handle of this application can adopt the pulling or press to operate to the realization pushes away the handle and can promote the door and open, the mode of opening the door that the pull handle can pull the door and open, simple structure, the operation is light convenient.

Description

Novel mortise lock

Technical Field

The application relates to the technical field of mortise locks, in particular to a novel mortise lock.

Background

The door locks are classified a lot, the requirements on the door locks are different in each occasion, and the anti-theft door lock is generally used for a common household door, so that the safety is high; in structural classification, mortise lock is one of the most common locks in the market.

A lock in the correlation technique comprises a lock body and a handle, wherein the lock body comprises an oblique tongue component, a square tongue component and a transmission component linked with the handle, and a linkage part is arranged between the oblique tongue component and the square tongue component. The handle is provided with a square rod, and the transmission assembly is provided with a square hole for the square rod to be inserted into, so that the handle can be rotated around the central line of the square rod to drive the latch bolt assembly and the latch bolt assembly to realize locking and unlocking control.

With respect to the related art in the above, the inventors consider that: when the door is opened, the handle is required to be held by a hand, and the door can be opened only by pushing or pulling towards the door opening direction after the handle is rotated, so that the operation is not convenient enough, and great effort is required.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that the operation is not convenient enough, the application provides a novel mortise lock.

The application provides a novel mortise lock adopts following technical scheme:

the utility model provides a novel mortise lock, includes lock body and handle, be provided with single tongue subassembly in the lock body, its characterized in that: a pressing piece is arranged in the lock body in a sliding mode, and a poking rod is arranged on the pressing piece; fixing seats are fixedly arranged on both sides of the lock body; the handle is provided with a swing rod, the middle part of the swing rod is hinged on the fixed seat through a hinged shaft, the hinged shaft is perpendicular to the length direction of the swing rod, and the end part of the swing rod is inserted into the lock body and is linked with the poke rod; a shifting piece and a transmission piece which are linked with the single-tongue component are hinged in the lock body, the shifting piece is provided with a shifting block which is linked with the pressing piece, and the transmission piece is provided with a transmission block which is linked with the pressing piece; the transmission block and the shifting block are respectively abutted to two opposite sliding directions of the pressing piece.

Through adopting above-mentioned technical scheme, make the handle can adopt the pulling or press to operate, press down perhaps pulling handle, make the pendulum rod swing that articulates in the fixing base, drive the poker rod and just drive the casting die and just slide, the casting die slides rethread plectrum or transmission piece and drives the single tongue subassembly and unblank to the realization pushes away the handle and can promote the door and open, the mode of opening that the pull handle can stimulate the door and open, simple structure, it is easy convenient to operate.

Optionally, the single-tongue assembly comprises a latch tongue and a pull rod which are slidably arranged in the lock body, and a positioning piece linked with the transmission piece is fixedly arranged on the pull rod; the transmission piece is provided with a second sliding block; the plectrum is provided with the first slider with the linkage of second slider.

By adopting the technical scheme, the driving piece is linked with the positioning piece, the shifting piece is linked with the driving piece, and the pressing piece slides towards two directions and can directly or indirectly drive the positioning piece to move by utilizing the driving piece, so that the single-tongue component is unlocked.

Optionally, the pressing piece is provided with a guide plate, two sides of the guide plate are respectively provided with a first pressure spring pad and a second pressure spring pad which are arranged along the sliding direction of the pressing piece, two opposite ends of the first pressure spring pad and the second pressure spring pad are respectively provided with a guide spring, and one ends of the two guide springs which are relatively far away are abutted to the inside of the lock body.

Through adopting above-mentioned technical scheme, set up deflector, first pressure spring pad, second pressure spring pad and guide spring, when making the casting die slide again, give the casting die an effort that resets.

Optionally, two side walls of the first pressure spring pad and the second pressure spring pad are provided with guide blocks; and the lock body is provided with a guide groove corresponding to the guide block.

Through adopting above-mentioned technical scheme, the cooperation of guide block and guide way makes the guide block when sliding, increases stability, just also increases the gliding stability of casting die, just also increases the stability of structure.

Optionally, two mutually staggered hinge grooves are formed in two end faces of the fixed seat, communicated hinge holes are formed between the hinge grooves on two sides in a staggered manner, and the hinge shafts are arranged in the hinge holes; and the swing rod is provided with a jack for the hinge shaft to pass through.

Through adopting above-mentioned technical scheme, two articulated grooves can both be through punching press direct forming to the step of side direction trompil has been saved to the direct forming jack, convenient processing.

Optionally, the fixed seat is provided with a swing hole for the swing rod to pass through and swing; and a positioning block is arranged on one side of the swing rod, and a positioning groove for swinging the positioning block is arranged on one side of the swing hole corresponding to the positioning block.

Through adopting above-mentioned technical scheme, utilize trapezoidal piece and dovetail groove can restrict the swing angle of pendulum rod, and have and prevent mistake dress effect.

Optionally, a top block is arranged on the shifting piece, and the top block and the first sliding block are respectively abutted to two sides of the second sliding block.

Through adopting above-mentioned technical scheme, make the casting die slide and link gradually transmission piece and spacer at the pulling handle, when driving single tongue subassembly and unblanking, rotate the butt through the transmission piece and drive the kicking block, drive the plectrum and rotate to avoid the plectrum to influence the rotation of transmission piece.

Optionally, the swing rod is provided with a square column, and the handle is provided with a square groove corresponding to the square column; the both ends that square post is relative all are provided with the locking groove, the handle is provided with the locking hole that corresponds with the locking groove of square post one end.

Through adopting above-mentioned technical scheme, locking hole and locking groove align to insert the locking piece and just can make the fixed of realization handle and pendulum rod.

Optionally, a protruding strip is arranged on one end face, facing the fixing seat, of the handle.

Through adopting above-mentioned technical scheme, when using the pulling handle to realize unblanking, the setting increase of sand grip and the area of contact of hand prevent to unblank because of the smooth influence of hand.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the handle can be operated by pulling or pressing, the handle is pressed or pulled, the swing rod hinged to the fixed seat swings to drive the poke rod to drive the pressing piece to slide, and the pressing piece slides to drive the single-tongue assembly to unlock through the poke piece or the transmission piece, so that a door opening mode that the door can be pushed to be opened by pushing the handle and the door can be pulled to be opened by pulling the handle is realized, the structure is simple, and the operation is easy and convenient;

2. the driving piece is linked with the positioning piece, the shifting piece is linked with the driving piece, and the pressing piece can directly or indirectly drive the positioning piece to move by utilizing the driving piece when sliding towards two directions, so that the single-tongue component is unlocked.

Drawings

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

FIG. 2 is a schematic diagram of the explosive structure of the present application;

figure 3 is a front schematic view of the internal structure of the lock body of the present application;

figure 4 is an exploded view of the lock body of the present application;

FIG. 5 is a schematic view of the construction of a compression element of the present application;

fig. 6 is an exploded view of the handle and holder of the present application.

Description of reference numerals: 1. a lock body; 11. a base plate; 111. a guide groove; 112. positioning a plate; 12. a cover plate; 13. a panel; 131. a tongue hole; 132. a tongue cover; 14. pressing parts; 141. a guide plate; 142. a drive slot; 15. a poke rod; 16. a shifting sheet; 161. shifting blocks; 162. a first slider; 163. a top block; 17. a driving strap; 171. a transmission block; 172. a second slider; 2. a handle; 21. a swing rod; 211. positioning blocks; 212. a square column; 213. a locking groove; 214. a U-shaped groove; 22. a square groove; 23. a locking hole; 24. a convex strip; 3. a fixed seat; 31. a hinge slot; 32. a hinge hole; 33. hinging a shaft; 34. a jack; 35. a swing hole; 36. positioning a groove; 4. a first compression spring pad; 41. a guide spring; 42. a guide block; 5. a second pressure spring pad; 6. a single tongue assembly; 61. a latch bolt; 62. a pull rod; 621. a commutation block; 622. a cross groove; 63. a return spring; 64. a guide pad; 641. fixing grooves; 65. positioning plates; 66. a reversing spring; 7. a fuse assembly; 71. a square core; 711. a locking block; 72. a torsion spring; 73. a safety disc; 731. a locking end; 732. a clamping block; 734. a bevel.

Detailed Description

The present application is described in further detail below with reference to the attached drawings.

The embodiment of the application discloses a novel mortise lock.

Referring to fig. 1 and 2, a novel mortise lock comprises a lock body 1, two handles 2 and fixing seats 3 connected between the handles 2 and the lock body 1, wherein the two fixing seats 3 are respectively installed at two sides of the lock body 1. The lock body 1 comprises a bottom plate 11, a cover plate 12 and a panel 13, wherein the single bolt assembly 6 is installed on the bottom plate 11.

Referring to fig. 3 and 4, the single tongue assembly 6 includes a latch tongue 61, a pull rod 62, a return spring 63, a guide pad 64, and a positioning piece 65. The panel 13 is provided with a tongue hole 131 corresponding to the latch tongue 61, a tongue sleeve 132 is fixedly arranged on the tongue hole 131, the tongue sleeve 132 can guide the sliding of the latch tongue 61, and meanwhile, the direct contact between the latch tongue 61 and the panel 13 is reduced, so that the noise generated by the metal friction between the latch tongue 61 and the panel 13 is reduced. The pull rod 62 is in clamping fit with the latch tongue 61, a guide pad 64, a return spring 63 and a positioning piece 65 are sleeved on the pull rod 62, the return spring 63 is arranged between the latch tongue 61 and the guide pad 64, and when the latch tongue 61 slides towards the opposite direction of the locking direction, the latch tongue 61 compresses the return spring 63. At this time, the return spring 63 has one end abutting the latch tongue 61 and the other end abutting the guide pad 64, thereby providing a force for returning the latch tongue 61 in the locking direction. The bottom plate 11 is integrally formed with a positioning plate 112 for limiting the sliding of the guide pad 64, and the guide pad 64 is provided with a fixing groove 641 corresponding to the positioning plate 112, so that the stability of the sliding of the pull rod 62 and the latch tongue 61 is better.

Referring to fig. 4 and 5, a pressing member 14 is slidably connected to the bottom plate 11, and a toggle lever 15 is fixedly connected to the pressing member 14. The handle 2 is fixedly connected with a swing rod 21 which is linked with the poke rod 15. The swing rod 21 is hinged with the fixed seat 3, and the bottom plate 11 is hinged with the shifting sheet 16 and the transmission sheet 17. The edge of the shifting piece 16 is integrally formed with a shifting block 161, the edge of the transmission piece 17 is integrally formed with a transmission block 171, the pressing piece 14 is provided with a driving groove 142, and the shifting block 161 and the transmission block 171 are respectively abutted against two side walls in the driving groove 142 in the relative sliding direction. The shifting piece 16 is integrally formed with a first sliding block 162, the transmission piece 17 is integrally formed with a second sliding block 172 linked with the first sliding block 162, the single tongue assembly 6 is fixedly connected with a positioning piece 65 linked with the transmission piece 17, and one end face, facing the locking direction, of the positioning piece 65 is abutted to the side wall of the transmission piece 17.

Referring to fig. 3 and 4, the handle 2 is pressed or pulled to swing the swing rod 21 hinged to the fixed seat 3, so as to drive the poke rod 15 to drive the pressing piece 14 to slide, the pressing piece 14 slides to sequentially drive the poking block 161, the poking block 161 drives the poking piece 16 to rotate, then the first sliding block 162 drives the second sliding block 172, the second sliding block 172 drives the transmission piece 17, and then the positioning piece 65 is driven to drive the single tongue assembly 6 to unlock. Or in the same way, the pressing piece 14 slides to sequentially drive the transmission block 171, the transmission block 171 drives the transmission piece 17, and then drives the positioning piece 65 to drive the single tongue assembly 6 to unlock. Simple structure, convenient operation is various. The shifting piece 16 is integrally formed with a top block 163, and the top block and the first slider are respectively abutted against two sides of the second slider. When the handle 2 is pulled, the pressing piece 14 slides to be sequentially connected with the transmission piece 17 and the positioning piece 65, and when the single tongue assembly 6 is driven to be unlocked, the transmission piece 17 rotates to abut against the driving ejector block 163 to drive the shifting piece 16 to rotate, so that the shifting piece 16 influences the rotation of the transmission piece 17.

Referring to fig. 4 and 5, the pressing member 14 is integrally formed with a guide plate 141, two side walls of the guide plate 141 are respectively provided with a first pressure spring pad 4 and a second pressure spring pad 5 in abutting contact, and the first pressure spring pad 4 and the second pressure spring pad 5 are both sleeved with a guide spring 41. When the pressing member 14 is at the initial position between the first pressure spring pad 4 and the second pressure spring pad 5, the guide spring 41 is in a natural state. When the pressing member 14 presses the first pressure spring pad 4 to slide, the guide plate 141 is abutted to drive the first pressure spring pad 4 to slide, the guide spring 41 sleeved with the first pressure spring pad 4 is compressed, a reset acting force is provided for the pressing member 14, and the second pressure spring pad 5 is kept still. When the pressing member 14 slides and slides towards the second pressure spring pad 5, the second pressure spring pad 5 is driven to slide, the guide spring 41 sleeved with the second pressure spring pad 5 is compressed, meanwhile, a reset acting force is given to the pressing member 14, and the first pressure spring pad 4 keeps still.

Referring to fig. 3 and 4, the guide blocks 42 are integrally formed on both side walls of the first compression spring pad 4 and the second compression spring pad 5, and the guide grooves 111 corresponding to the guide blocks 42 are formed on both the bottom plate 11 and the cover plate 12. Through the sliding fit setting of guide block 42 and guide way 111 to the slip of spacing first pressure spring pad 4 and second pressure spring pad 5 increases gliding stability, also plays stability and spacing gliding effect to casting die 14 simultaneously, finally makes the process of unblanking stable.

Referring to fig. 6, the two end faces of the fixed seat 3 are both formed with hinge grooves 31 by stamping and forging, hinge holes 32 are formed between the hinge grooves 31 at the two sides in a staggered manner, hinge shafts 33 penetrate through the hinge holes 32, and the swing rod 21 is provided with insertion holes 34 corresponding to the hinge shafts 33. Therefore, the swing rod 21 is hinged and matched with the fixed seat 3, and the hinge hole 32 formed by stamping and forging is convenient to process.

Referring to fig. 2 and 6, the fixing seat 3 is provided with a swing hole 35, the swing link 21 is integrally formed with a positioning block 211, the swing link 21 is provided with a U-shaped groove 214 connected and matched with the poke rod 15, and the swing hole 35 is provided with a positioning groove 36 corresponding to the positioning block 211. Because the lock body 1 left and right sides all has handle 2, just also has two pendulum rods 21 to be connected with poker rod 15, and pendulum rod 21 staggered connection is on poker rod 15, and the terminal surface that has locating piece 211 sets up in opposite directions again for the narrow limit orientation of the constant head tank 36 of two fixing bases 3 that correspond is opposite, when the installation, can be convenient for distinguish about like this. Meanwhile, the positioning slot 36 and the positioning block 211 can limit the swing angle of the swing rod 21 in the swing hole 35.

Referring to fig. 6, the swing rod 21 is integrally formed with a square column 212, the handle 2 is provided with a square groove 22 corresponding to the square column 212, two opposite ends of the square column 212 are both provided with locking grooves 213, and the handle 2 is provided with a locking hole 23 corresponding to the locking groove at one end of the square column 212. When the locking hole 23 and the locking groove 213 are inserted into the insertion member in alignment, the fixed connection of the handle 2 and the swing link 21 can be achieved. Furthermore, the opposite ends of the square column 212 are provided with the locking slots 213, the handle 2 is provided with a locking hole 23, and the locking hole 23 is matched with the locking slots 213 at the different ends in a clamping manner, so that the direction of the handle 2 can be changed, and the square column is suitable for a left-opening door and a right-opening door at the same time.

Referring to fig. 2 and 3, a safety assembly 7 is further mounted on the bottom plate 11, and the safety assembly 7 includes a square core 71, a torsion spring 72 and a safety plate 73. The square core 71 and the safety plate 73 are hinged and matched with the bottom plate 11, one end of the torsion spring 72 is hinged and matched with the bottom plate 11, and the other end of the torsion spring is hinged and matched with the square core 71. The locking piece 73 is integrally formed with a locking end 731, a latch 732, and a slope, and the square core 71 is integrally formed with a locking block 711. When the latch bolt 61 is in the locked state, the key rotates the square core 71, and the square core 71 slides on the inclined surface through the locking block 711, so as to drive the safety plate 73 to rotate, so as to drive the locking end 731 to slide towards the positioning plate 65, until the locking end 731 is in abutting contact with one end surface of the positioning plate 65, which is far away from the transmission plate 17, so that the latch bolt 61 is limited to slide towards the unlocking direction, and the effect of safety locking is achieved. When the safety lock is unlocked, the square core 71 is rotated reversely, the square core 71 is abutted by the locking block 711 to drive the fixture block 732 to slide, the fixture block 732 can drive the safety sheet 73 to rotate, so that the locking end 731 is driven to slide, and when the locking end 731 is disengaged from the abutment of the positioning plate 112 and the sliding track of the positioning plate 112 is disengaged, the safety lock is unlocked. The operation is convenient, the structure is simple, and the effects of safety locking and safety unlocking of the latch bolt 61 are achieved.

Referring to fig. 2 and 3, a reversing block 621 is integrally formed at one end of the pull rod 62 away from the latch tongue 61, a cross-shaped groove 622 is formed in the reversing block 621, and a reversing spring 66 is installed between the positioning piece 65 and the reversing block 621. The pull rod 62 and the latch tongue 61 are enabled to slide towards the locking direction by the action of the hardware tool inserted into the cross groove 622 towards the locking direction, when the latch tongue 61 slides out of the panel 13, the pull rod and the latch tongue 61 are driven to rotate along the axial lead by rotating the hardware tool, and when the rotation degree is high, the latch tongue 61 can achieve the reversing effect, so that the latch tongue 61 can be suitable for left-opening doors and right-opening doors, and the purposes are diversified

Referring to fig. 2, handle 2 has sand grip 24 towards the one end face integrated into one piece of fixing base 3, uses pulling handle 2 to realize unblanking, and setting up increase and the area of contact of hand of sand grip 24 prevents to influence because of the hand is smooth and unblanks.

The implementation principle of the novel mortise lock of the embodiment of the application is as follows:

when the lock is unlocked, the handle 2 is pressed or pulled to enable the swing rod 21 hinged to the fixed seat 3 to swing, the poke rod 15 is driven to drive the pressing piece 14 to slide, the pressing piece 14 slides to link with the poking piece 16, the poking piece 16 is linked with the transmission piece 17, the transmission piece 17 is linked with the positioning piece 65, the positioning piece 65 is linked with the pull rod 62 and the latch tongue 61 to unlock, or the pressing piece 14 slides to link with the transmission piece 17, the transmission piece 17 is linked with the positioning piece 65, and the positioning piece 65 is linked with the pull rod 62 and the latch tongue 61 to unlock.

When unlocking after insurance, the square core 71 is firstly rotated, the square core 71 is abutted by the locking block 711 to drive the fixture block 732 to slide, the fixture block 732 can drive the safety plate 73 to rotate, so that the locking end 731 is driven to slide, and when the locking end 731 is disengaged from the abutting joint of the positioning plate 112 and the sliding track of the positioning plate 112 is disengaged, the insurance is unlocked. Then the handle 2 is pressed or pulled to make the swing rod 21 hinged with the fixed seat 3 swing, the poking rod 15 is driven to drive the pressing piece 14 to slide, the pressing piece 14 slides to link the poking piece 16, the poking piece 16 links the driving piece 17, the driving piece 17 links the positioning piece 65, the positioning piece 65 links the pull rod 62 and the latch bolt 61 to unlock, or the pressing piece 14 slides to link the driving piece 17, the driving piece 17 links the positioning piece 65, and the positioning piece 65 links the pull rod 62 and the latch bolt 61 to unlock.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a novel mortise lock, includes lock body (1) and handle (2), be provided with single tongue subassembly (6) in lock body (1), its characterized in that: a pressing piece (14) is arranged in the lock body (1) in a sliding mode, and a poke rod (15) is arranged on the pressing piece (14); the two sides of the lock body (1) are both fixedly provided with a fixed seat (3); the handle (2) is provided with a swing rod (21), the middle part of the swing rod (21) is hinged to the fixed seat (3) through a hinged shaft (33), the hinged shaft (33) is perpendicular to the length direction of the swing rod (21), and the end part of the swing rod (21) is inserted into the lock body (1) and is linked with the poke rod (15); a shifting piece (16) and a transmission piece (17) which are linked with the single-tongue component (6) are hinged in the lock body (1), the shifting piece (16) is provided with a shifting block (161) which is linked with the pressing piece (14), and the transmission piece (17) is provided with a transmission block (171) which is linked with the pressing piece (14); the transmission block (171) and the shifting block (161) are respectively abutted in two opposite sliding directions of the pressing piece (14).

2. A new mortice lock according to claim 1 wherein: the single-tongue component (6) comprises a latch bolt (61) and a pull rod (62) which are arranged in the lock body (1) in a sliding manner, and a positioning piece (65) linked with the transmission piece (17) is fixedly arranged on the pull rod (62); the transmission piece (17) is provided with a second sliding block (172); the plectrum (16) is provided with a first slider (162) that links with second slider (172).

3. A new mortice lock according to claim 1 wherein: the lock body is characterized in that the pressing piece (14) is provided with a guide plate (141), a first pressure spring pad (4) and a second pressure spring pad (5) which are arranged along the sliding direction of the pressing piece (14) are respectively arranged on two sides of the guide plate (141), two opposite ends of the first pressure spring pad (4) and the second pressure spring pad (5) are respectively provided with a guide spring (41), and one ends of the two guide springs (41) which are far away from each other are abutted to the inside of the lock body (1).

4. A new mortice lock according to claim 3 wherein: guide blocks (42) are arranged on two side walls of the first pressure spring pad (4) and the second pressure spring pad (5); the lock body (1) is provided with a guide groove (111) corresponding to the guide block (42).

5. A new mortice lock according to claim 1 wherein: two mutually staggered hinge grooves (31) are formed in two end faces of the fixed seat (3), hinge holes (32) communicated with each other are formed between the hinge grooves (31) on the two sides in a staggered mode, and the hinge shafts (33) are arranged in the hinge holes (32); the swing rod (21) is provided with an insertion hole (34) for the hinge shaft (33) to pass through.

6. The new mortise lock according to claim 4, characterized in that: the fixed seat (3) is provided with a swing hole (35) for the swing rod (21) to pass through and swing; one side of pendulum rod (21) is provided with locating piece (211), one side that corresponds locating piece (211) in swing hole (35) is provided with confession locating piece (211) wobbling constant head tank (36).

7. A new mortice lock according to claim 2 wherein: the shifting piece (16) is provided with a top block (163), and the top block (163) and the first sliding block (162) are respectively abutted to two sides of the second sliding block (172).

8. A new mortice lock according to claim 1 wherein: the swing rod (21) is provided with a square column (212), and the handle (2) is provided with a square groove (22) corresponding to the square column (212); the two opposite ends of the square column (212) are provided with locking grooves (213), and the handle (2) is provided with locking holes (23) corresponding to the locking grooves at one end of the square column (212).

9. A new mortice lock according to claim 1 wherein: one end face, facing the fixed seat (3), of the handle (2) is provided with a convex strip (24).