Lock with improved back locking structure

Abstract

The utility model discloses a lockset with an improved back locking structure, which comprises a first fixing component and a spring bolt, the first fixing component is provided with a first handle, the first handle drives the spring bolt to perform unlocking action through a locking bar, the first handle comprises a handle seat movably provided with a key, one side, facing the locking bar, of the key is movably provided with a lock pin, and the first fixing component is provided with a lock hole. The lock bar is provided with a through hole, the handle seat is provided with a receding hole, the handle seat and the key are matched through a clutch structure, the first handle has a back locking state and a normal state, the handle seat and the lock bar are in transmission connection in a clearance fit mode, the back locking state is achieved, the lock bar and the first fixing assembly are relatively fixed by the lock pin after the key is pressed down, and the normal state is achieved. The handle base rotates by a first preset angle, clearance fit is eliminated, back locking is relieved, and the handle base continues to rotate by a second preset angle to drive the lock bar to rotate. Unlocking and unlocking processes after back locking of the lock are realized through seamless connection and rotation of the first handle, and the lock is smooth and simple to operate and easy to use.

Description

TECHNICAL FIELD

[0001] The utility model relates to a lock technical field, concretely relates to a lock with improved anti-lock structure. BACKGROUND

[0002] The lock basically has the anti-lock function, and the anti-lock function of the lock is realized through the knob independent of the handle, and the user rotates the knob to realize the anti-lock and unlocking functions of the lock.

[0003] However, the existing lock needs two steps to be unlocked after anti-lock, the first step is to rotate the knob to be unlocked, and the second step is to rotate the handle to be unlocked, and the overall operation process is not smooth enough. INVENTION CONTENTS

[0004] The utility model aims at providing a lock with improved anti-lock structure, which is smooth in the unlocking and opening process after anti-lock.

[0005] The utility model is achieved in the following manner.

[0006] A lock with improved anti-lock structure, comprising a first fixed component and a lock tongue, wherein the first handle drives the lock tongue to perform an unlocking action, the first handle comprises a handle seat with a key, a first retaining device and a second retaining device are arranged between the handle seat and the key, a lock pin is arranged on the side of the key facing the lock bar, the first fixed component is provided with a lock hole, the lock bar is provided with a through hole for the lock pin to pass through, the handle seat is provided with a gap hole for the lock pin to pass through, the handle seat and the key are matched through a clutch structure, the first handle has an anti-lock state and a normal state, the handle seat and the lock bar are transmission-connected in a virtual position matching manner,

[0007] In the anti-lock state, the key is pressed, the lock pin passes through the lock hole and the through hole, the first retaining device keeps the state of the lock pin, the lock bar and the first fixed component are relatively fixed, and the clutch structure between the handle seat and the key is engaged,

[0008] In the normal state, the handle seat is rotated by a first preset angle to eliminate the virtual position matching between the handle seat and the lock bar, the handle seat makes the lock pin disengage from the lock hole or the through hole to release the anti-lock state, the second retaining device keeps the state of the lock pin, the clutch structure is separated, and the handle seat is continuously rotated by a second preset angle to drive the lock bar to rotate.

[0009] The lock of the utility model is anti-locked, and the unlocking and opening processes after anti-lock are realized by rotating the first handle, the unlocking and opening processes after anti-lock are connected, the operation is smooth and simple, and the lock is easy to use.

[0010] Further, the clutch structure comprises a first clutch tooth and a second clutch tooth arranged between the handle seat and the key, in the anti-lock state, the key pushes the second clutch tooth to approach and engage with the first clutch tooth, in the normal state, the handle seat rotates to drive the first clutch tooth to rotate, the first clutch tooth forces the second clutch tooth to push the lock pin and the key to move away from the first clutch tooth to release the holding force of the first holding device.

[0011] The clutch structure is reasonable in design, facilitating the rotation of the first handle into linear motion, and further pushing the lock pin to move to unlock.

[0012] Further, the key is provided with an anti-lock block on the side facing the first clutch tooth, the anti-lock block is provided with the lock pin, the handle seat is provided with a mounting groove on the side away from the lock tongue, the key is movably arranged in the mounting groove, the anti-lock block is movably arranged between the bottom surface of the mounting groove and the inner side surface of the key, the bottom surface of the mounting groove is provided with the first clutch tooth, and the anti-lock block is provided with the second clutch tooth.

[0013] The first clutch tooth and the second clutch tooth are easy to cooperate and simple to manufacture.

[0014] Further, the top of the teeth of the first clutch tooth protrudes from the bottom surface of the mounting groove, and the top of the teeth of the second clutch tooth is flush with the cooperation surface of the anti-lock block facing the handle seat.

[0015] The first clutch tooth and the second clutch tooth require small cooperation space and do not increase the volume of the first handle.

[0016] Further, the top of the teeth of the first clutch tooth and the second clutch tooth is provided with a cut surface, the cut surface of the second clutch tooth is flush with the cooperation surface, and the tooth groove of the second clutch tooth is recessed in the cooperation surface.

[0017] The first clutch tooth and the second clutch tooth are not easy to damage and fail.

[0018] Further, the shaft centers of the first clutch tooth and the second clutch tooth are on the rotation axis of the handle seat, the handle seat is provided with a first groove at the center of the first clutch tooth, the anti-lock block is provided with a second groove at the center of the second clutch tooth, and the first groove and the second groove accommodate the second holding device therebetween.

[0019] The second holding device is easy to install, can stably separate the first clutch tooth and the second clutch tooth, and makes the unlocking operation more labor-saving.

[0020] Further, the center of the first groove is provided with a positioning hole, the center of the second groove is provided with a positioning column, the positioning column passes through the positioning hole, the positioning column moves in the positioning hole with the movement of the anti-lock block, the second holding device is a spring, and the second holding device is sleeved on the positioning column.

[0021] The positioning hole and the positioning column cooperate to guide the first clutch tooth and the second clutch tooth to approach or separate, avoiding mispositioning of the first clutch tooth and the second clutch tooth to cause failure.

[0022] Further, the installation groove is provided with the clearance hole around the periphery of the first clutch tooth, and the clearance hole is an arc-shaped hole around the rotation axis of the handle seat.

[0023] The arc-shaped hole avoids the position of the lock pin.

[0024] Further, the first retaining device comprises a magnet and a magnetic part, the magnet is arranged on the handle seat, the magnetic part is arranged on the button, and the magnetic part is close to the magnet after the button is pressed, and the magnetic attraction force between the magnetic part and the magnet is greater than the elastic force of the second retaining device.

[0025] The first retaining device is simple and reasonable, and avoids the situation that the second retaining device pushes the lock pin to move to cause the anti-locking failure.

[0026] Further, the lock strip is provided with a synchronously rotating lock piece on the first handle, the lock piece is provided with the through hole, and the axis of the through hole is different from the rotation axis of the lock strip.

[0027] The lock pin and the through hole are conveniently aligned and limited.

[0028] Further, the lock piece and the handle seat are provided with a connecting piece, the handle seat and the connecting piece are drivingly connected and synchronously rotate, the lock piece is provided with an arc-shaped long slot hole around the rotation axis of the lock strip, the connecting piece is provided with a pin hole corresponding to the arc-shaped long slot hole, and a fixing pin penetrating through the arc-shaped long slot hole is arranged in the pin hole; the handle seat drives the fixing pin to move in the arc-shaped long slot hole to abut against the end of the arc-shaped long slot hole to form the clearance fit, and the handle seat rotates to drive the lock strip to rotate after the fixing pin abuts against the end of the arc-shaped long slot hole.

[0029] The clearance fit between the handle seat and the lock piece is designed, the anti-anti-locking and unlocking are sequentially completed, the overall mechanism runs more smoothly, and faults are less likely to occur.

[0030] Further, the first fixing assembly comprises a first panel and a fixed piece which are fixedly connected with each other, the first panel is arranged between the fixed piece and the first handle, the lock piece is arranged between the first panel and the fixed piece, the fixed piece is provided with a reset device which aligns the through hole for pushing the lock piece and the lock hole, the first panel is provided with the lock hole, the lock pin penetrates through the through hole and is inserted into the lock hole, or the fixed piece is provided with the lock hole and the first panel is provided with a circular arc long slot hole, and the lock pin penetrates through the circular arc long slot hole, the through hole and is inserted into the lock hole.

[0031] The lock hole is reasonably designed, and the anti-locking function is realized in cooperation with the lock pin.

[0032] The utility model has the beneficial effects as follows:

[0033] According to the utility model, after the button is pressed, the first clutch tooth and the second clutch tooth, the lock pin penetrates through the lock hole and the through hole, the first fixing assembly and the lock strip are relatively fixed, and the lock strip cannot rotate to realize the anti-locking function.

[0034] The utility model discloses, rotate handle seat, second clutch tooth force first clutch tooth away from second clutch tooth, make button drive lock pin separate from lock hole or through -hole, handle seat continues to drive lock bar rotation and opens the lock, and the process of anti -lock after unlocking and unlocking is seamless, and the operation is smooth, simple, and easy to use. BRIEF DESCRIPTION OF DRAWINGS

[0035] Figure 1 It is structural schematic diagram of example one.

[0036] Figure 2 It is structural schematic diagram (another perspective) of example one.

[0037] Figure 3 It is structural schematic diagram of example one.

[0038] Figure 4 It is structural schematic diagram (another perspective) of example one.

[0039] Figure 5 It is structural schematic diagram of handle seat in example one.

[0040] Figure 6 It is structural schematic diagram of anti -lock block in example one.

[0041] Figure 7 It is cross -sectional structural schematic diagram (normal state) of example one.

[0042] Figure 8 It is cross -sectional structural schematic diagram (anti -lock state) of example one. DETAILED DESCRIPTION

[0043] The utility model will be further described below in conjunction with the drawings and example.

[0044] Example one, refer to Figures 1-8 As shown in the figure, an improved anti -lock structure's lock, including first handle 1, first fixed assembly 2, lock bolt 3, lock bar 4, reset device 5, second handle 6 and second panel 7.First handle 1 includes handle seat 8, anti -lock block 9, button 11, first holding device 13, second holding device 14 and lock pin 15.First fixed assembly 2 includes the first panel 21 and fixed sheet 22 of mutual connection fixed.

[0045] The lock tongue 3 is arranged between the first panel 21 and the second panel 7, and the first panel 21 and the second panel 7 are fixed by screw connection. The middle part of the lock bar 4 penetrates through the lock tongue 3, and the lock bar 4 and the lock tongue 3 are in transmission cooperation. One end of the lock bar 4 penetrates through the first panel 21 and the handle seat 8 and is in transmission connection by virtual position cooperation, and the other end of the lock bar 4 penetrates through the second panel 7 and the second handle 6 and is in transmission connection. The lock bar 4 is provided with a lock piece 41 on the side close to the first panel 21, the lock piece 41 is provided with two symmetrical through holes 42, the axis of the through holes 42 is different from the rotation axis of the lock bar 4, and the lock bar 4 and the lock piece 41 rotate synchronously. The first panel 21 is provided with a lock hole 20 corresponding to the through hole 42.

[0046] The lock piece 41 and the handle seat 8 are provided with a connecting piece 10, the handle seat 8 and the connecting piece 10 are in transmission connection and rotate synchronously, the lock piece 41 is provided with an arc-shaped long hole 43 around the rotation axis of the lock bar 4, the connecting piece 10 is provided with a pin hole 100 corresponding to the arc-shaped long hole 43, a fixed pin penetrating through the arc-shaped long hole 43 is arranged in the pin hole 100, the handle seat 8 drives the fixed pin to move in the arc-shaped long hole 43 to abut against the end of the arc-shaped long hole 43 to form the virtual position cooperation, and the handle seat 8 rotates to drive the lock bar 4 to rotate after the fixed pin abuts against the end of the arc-shaped long hole 43. Preferably, the lock bar 4 and the lock piece 41 are integrally formed. The lock tongue 3 is a prior art, and the utility model will not be described in detail.

[0047] The fixed piece 22 is arranged between the first panel 21 and the lock tongue 3, and the fixed piece 22 and the first panel 21 are fixed by screw connection. The lock piece 41 is arranged between the fixed piece 22 and the first panel 21. The fixed piece 22 is provided with a reset device 5 in which the through hole 42 of the lock piece 41 and the lock hole 20 are aligned. Specifically, the reset device 5 comprises a rotating piece 51 and a torsional spring 52, the rotating piece 51 is arranged on the fixed piece 22 on the side of the lock piece 41, the rotating piece 51 is engaged with the lock piece 41, one end of the torsional spring 52 abuts against the fixed piece 22, and the other end of the torsional spring 52 abuts against the rotating piece 51, and the torsional force of the torsional spring 52 makes the through hole 42 of the lock piece 41 and the lock hole 20 aligned. Preferably, the torsional spring 52 has three ends, two ends of which are symmetrically abut against the fixed piece 22, and the remaining end abuts against the rotating piece 51. The clockwise or counterclockwise rotation of the lock bar 4 can stably reset the lock piece 41. Preferably, the fixed piece 22 is also provided with the lock hole 20 corresponding to the through hole 42.

[0048] The handle seat 8 and the button 11 are matched by the clutch structure. Specifically, the handle seat 8 is provided with a mounting groove 81 on the side away from the latch 3, the button 11 is movably arranged in the mounting groove 81, and the anti-lock block 9 is movably arranged between the bottom surface of the mounting groove 81 and the inner side surface of the button 11. The bottom surface of the mounting groove 81 is provided with first clutch teeth 82, the tooth top of the first clutch teeth 82 protrudes from the bottom surface of the mounting groove 81, the first clutch teeth 82 are arranged in a ring shape around the rotation axis of the handle seat 8, and the axis of the first clutch teeth 82 is on the rotation axis of the handle seat 8. The handle seat 8 is provided with a first recess 83 at the center of the first clutch teeth 82, and the first recess 83 is provided with a positioning hole 84 at the center. The mounting groove 81 is provided with two let-out holes 85 around the first clutch teeth 82, and the let-out holes 85 are arc-shaped holes around the rotation axis of the handle seat 8.

[0049] The side of the anti-lock block 9 facing the latch 3 is a matching surface 90, and the matching surface 90 is provided with second clutch teeth 91, and the tooth top of the second clutch teeth 91 is flush with the matching surface 90 of the anti-lock block 9 facing the handle seat 8. The tooth top of the first clutch teeth 82 and the tooth top of the second clutch teeth 91 are both provided with a cut surface 92, the cut surface 92 of the second clutch teeth 91 is flush with the matching surface 90, and the tooth groove of the second clutch teeth 91 is recessed in the matching surface 90. The first clutch teeth 82 and the second clutch teeth 91 cooperate to form the clutch structure.

[0050] The axis of the second clutch teeth 91 is on the rotation axis of the handle seat 8, the anti-lock block 9 is provided with a second recess 93 at the center of the second clutch teeth 91, the second recess 93 is provided with a positioning column 94 at the center, and the positioning column 94 passes through the positioning hole 84. The positioning column 94 moves in the positioning hole 84 with the movement of the anti-lock block 9. The first recess 83 and the second recess 93 are opposite and accommodate the second retaining device 14. The second retaining device 14 is a spring, the spring is sleeved on the positioning column 94, one end of the spring abuts against the first recess 83, and the other end of the spring abuts against the second recess 93. The second retaining device 14 prevents the anti-lock block 9 and the button 11 from moving by themselves to cause the movement of the lock pin 15 and thus the self-locking.

[0051] One end of the lock pin 15 is threadedly connected and fixed to the matching surface 90 of the anti-lock block 9, the other end of the lock pin 15 passes through the let-out hole 85 and the lock hole 20 and is close to the through hole 42. The second retaining device 14 has a tendency to make the lock pin 15 move away from the through hole 42. The lock pin 15 is made of metal material and is not easy to break.

[0052] The first retaining device 13 includes a magnet 131 and a magnetic part 132, the magnet 131 is arranged on the handle seat 8, and the magnetic part 132 is arranged on the button 11. After the button 11 is pressed, the magnetic part 132 is close to the magnet 131, and the magnetic attraction force between the magnetic part 132 and the magnet 131 is greater than the elastic force of the second retaining device 14. Preferably, the magnetic part 132 is an iron sheet fixed on the button 11.

[0053] Working principle:

[0054] When the lock is in normal state, the first handle 1 and the second handle 6 can drive the lock bar 4 to rotate the lock bolt 3 to lock or unlock. However, the second handle 6 directly drives the lock bar 4 to rotate, and the second handle 6 needs to rotate to eliminate the virtual position matching before driving the lock bar 4. For example, the second handle 6 rotates 15 degrees to complete the unlocking action, and the second handle 6 rotates 15 degrees to eliminate the virtual position matching, and continues to rotate 15 degrees to complete the unlocking action.

[0055] In the anti-lock state, the button 11 is pressed, the button 11 pushes the second clutch tooth 91 of the anti-lock block 9 to move towards the first clutch tooth 82, and compresses the second retaining device 14. The magnet 131 and the magnetic part 132 abut, the magnetic attraction force becomes larger, and overcomes the elastic force of the second retaining device 14. The anti-lock block 9 pushes the lock pin 15 to move towards the lock bolt 3, the lock pin 15 passes through the through hole 42, the first clutch tooth 82 and the second clutch tooth 91 are close and meshed, at this time, the lock pin 15 passes through the lock hole 20 of the first panel 21 and the through hole 42 of the lock piece 41 at the same time, the lock piece 41 is limited by the lock pin 15 and cannot move, the second handle 6 cannot drive the lock bar 4 to rotate, and the anti-lock function is realized. In this process, the lock pin 15 can also be inserted into the lock hole 20 of the fixed piece 22 under the condition that the stroke meets, further improving the anti-lock protection effect. Or the lock hole 20 of the fixed piece 22 as a hole with a relief function to avoid the collision between the lock pin 15 and the fixed piece 22.

[0056] In the anti-lock state, the first handle 1 rotates, the handle seat 8 rotates to drive the first clutch tooth 82 to rotate. Since the lock pin 15 relatively fixes the first panel 21 and the anti-lock block 9, the lock pin 15 is relatively movable in the relief hole 85. The first clutch tooth 82 forces the second clutch tooth 91 to push the anti-lock block 9 and the button 11 to move away from the first clutch tooth 82, the magnet 131 and the magnetic part 132 are separated, the magnetic attraction force is reduced, that is, the anti-lock block 9 and the button 11 are pushed away from the lock bolt 3, the second clutch tooth 91 is separated from the first clutch tooth 82, and the lock pin 15 is separated from the through hole 42. At the same time, the fixed pin of the connecting piece 10 moves in the arc-shaped long hole 43, and when the lock pin 15 is separated from the through hole 42, the fixed pin abuts against one end of the arc-shaped long hole 43. The first handle 1 rotates to drive the lock bar 4 to rotate synchronously through the connecting piece 10, the fixed pin, the lock piece 41, and further drives the lock bolt 3 to perform the unlocking action.

[0057] The elastic force of the second retaining device 14 helps to push the anti-lock block 9 and the button 11 to drive the lock pin 15 to separate from the through hole 42, and the elastic force of the second retaining device 14 keeps the position of the lock pin 15 to prevent the lock pin 15 from inserting back into the through hole 42.

[0058] In the utility model, the lock hole 20 on the first panel 21 is an arc long hole, the locking pin 15 is inserted into the lock hole 20 of the fixed sheet 22 through the arc long hole and the through hole 42, and the above-mentioned functions can also be realized.

[0059] In order to improve the reliability of the utility model, the handle seat 8 is provided with a limiting hole 85, the key 11 is connected with a limiting block 12 penetrating through the limiting hole 85, the limiting block 12 moves with the key 11, after the key 11 is pressed down, the limiting block 12 protrudes from the limiting hole 85, the user can press the limiting block 12 to reset the key 11, preferably, the limiting block 12 and the limiting hole 85 are designed in a T shape, the limiting block 12 and the limiting hole 85 in the T shape are matched, and the key 11 can also be prevented from being separated from the handle seat 8.

[0060] In the utility model, the second handle 6 can be replaced by a lock cylinder which is rotated by a key.

[0061] As used in the utility model, the terms: first, second, etc. do not indicate any order, quantity or importance, but are only used for distinction.

[0062] As used in the utility model, the terms: one, a, etc. do not indicate a limitation of quantity, but indicate the existence of at least one mentioned object.

[0063] As used in the utility model, the terms indicating direction or position: front end, rear end, top, bottom, side, longitudinal, transverse, middle, center, outer, inner, horizontal, vertical, left, right, upper, lower, etc. mean reflecting relative position, not absolute position.

[0064] As used in the utility model, the terms: substantially, integrally, approximately, similarly, etc. are used as limiting terms for indicating the existence of characteristics but allowing certain deviations. The amount of allowable deviation can vary depending on the specific context.

Claims

1. An improved lock with a reverse locking structure, comprising a first fixed assembly (2) and a lock bolt (3) with a first handle (1) installed, the first handle (1) driving the lock bolt (3) to perform an unlocking action through a lock bar (4), characterized in that, The first handle (1) comprises a handle seat (8) movably provided with a button (11), a first holding device (13) and a second holding device (14) are arranged between the handle seat (8) and the button (11), the button (11) is movably provided with a lock pin (15) on the side facing the lock bar (4), the first fixed component (2) is provided with a lock hole (20), the lock bar (4) is provided with a through hole (42) for the lock pin (15) to pass through, the handle seat (8) is provided with a gap hole (85) for the lock pin (15) to pass through, the handle seat (8) and the button (11) are matched through a clutch structure, the first handle (1) has a reverse locking state and a normal state, the handle seat (8) and the lock bar (4) are drivingly connected with virtual position cooperation, In the reverse locking state, the button (11) is pressed down, the lock pin (15) passes through the lock hole (20) and the through hole (42), the first holding device (13) keeps the state of the lock pin (15), the lock bar (4) and the first fixed component (2) are relatively fixed, and the clutch structure between the handle seat (8) and the button (11) is engaged, In the normal state, the handle seat (8) is rotated by a first preset angle, the virtual position cooperation between the handle seat (8) and the lock bar (4) is eliminated, the lock pin (15) is separated from the lock hole (20) or the through hole (42) through the clutch structure to release the reverse locking, the second holding device (14) keeps the state of the lock pin (15), the clutch structure is separated, and the handle seat (8) is continuously rotated by a second preset angle to drive the lock bar (4) to rotate.

2. The lock set with improved deadlocking structure according to claim 1, wherein The clutch structure comprises a first clutch tooth (82) and a second clutch tooth (91) arranged between the handle seat (8) and the button (11), in the reverse locking state, the button (11) drives the second clutch tooth (91) to move close to and engage with the first clutch tooth (82), in the normal state, the handle seat (8) drives the first clutch tooth (82) to rotate, and the first clutch tooth (82) forces the second clutch tooth (91) to drive the lock pin (15) and the button (11) to move away from the first clutch tooth (82) to separate from the holding force of the first holding device (13).

3. The lock set with improved deadbolt structure of claim 2, wherein, The button (11) is provided with a reverse locking block (9) on the side facing the first clutch tooth (82), the lock pin (15) is arranged on the reverse locking block (9), the handle seat (8) is provided with a mounting groove (81) away from the lock tongue (3), the button (11) is movably arranged in the mounting groove (81), the reverse locking block (9) is movably arranged between the bottom surface of the mounting groove (81) and the inner side surface of the button (11), the bottom surface of the mounting groove (81) is provided with the first clutch tooth (82), and the reverse locking block (9) is provided with the second clutch tooth (91).

4. The lock set of claim 3 wherein, The tooth top of the first clutch tooth (82) protrudes from the bottom surface of the mounting groove (81), and the tooth top of the second clutch tooth (91) is flush with the matching surface (90) of the reverse locking block (9) facing the handle seat (8).

5. The lockset with improved deadbolt structure of claim 4, wherein, The tooth top of the first clutch tooth (82) and the tooth top of the second clutch tooth (91) are both provided with a cut surface (92), the cut surface (92) of the second clutch tooth (91) is flush with the matching surface (90), and the tooth groove of the second clutch tooth (91) is recessed in the matching surface (90).

6. The lockset with improved deadbolt structure according to claim 3, wherein The shaft centers of the first clutch teeth (82) and the second clutch teeth (91) are on the rotating axis of the handle base (8), the handle base (8) is provided with a first recess (83) at the center of the first clutch teeth (82), the anti-lock block (9) is provided with a second recess (93) at the center of the second clutch teeth (91), and the first recess (83) and the second recess (93) accommodate the second retaining device (14).

7. The lockset with improved deadbolt structure of claim 6, wherein, The first recess (83) is provided with a positioning hole (84) at the center, the second recess (93) is provided with a positioning column (94) at the center, the positioning column (94) passes through the positioning hole (84), and the positioning column (94) moves in the positioning hole (84) with the movement of the anti-lock block (9); the second retaining device (14) is a spring, and the second retaining device (14) is sleeved on the positioning column (94).

8. The lockset with improved deadbolt structure of claim 3, wherein, The installation groove (81) is provided with the clearance hole (85) around the first clutch teeth (82), and the clearance hole (85) is an arc-shaped hole around the rotating axis of the handle base (8).

9. The lockset with improved deadbolt structure of claim 1, wherein, The first retaining device (13) comprises a magnet (131) and a magnetic part (132), the magnet (131) is arranged on the handle base (8), and the magnetic part (132) is arranged on the key (11); after the key (11) is pressed, the magnetic part (132) is close to the magnet (131), and the magnetic attraction force between the magnetic part (132) and the magnet (131) is greater than the elastic force of the second retaining device (14).

10. The lockset with improved deadbolt structure of claim 1, wherein The lock strip (4) is provided with a lock piece (41) rotating synchronously on one side of the first handle (1), the lock piece (41) is provided with the through hole (42), and the shaft center of the through hole (42) is different from the rotating axis of the lock strip (4).

11. The lockset with improved deadbolt structure of claim 10, wherein, The lock piece (41) and the handle base (8) are provided with a connecting piece (10), the handle base (8) and the connecting piece (10) are drivingly connected and rotate synchronously, the lock piece (41) is provided with an arc-shaped long hole (43) around the rotating axis of the lock strip (4), the connecting piece (10) is provided with a pin hole (100) corresponding to the arc-shaped long hole (43), the pin hole (100) is provided with a fixing pin passing through the arc-shaped long hole (43), and the handle base (8) drives the fixing pin to move in the arc-shaped long hole (43) to abut against the end of the arc-shaped long hole (43) to form the virtual position cooperation, and the handle base (8) rotates to drive the lock strip (4) to rotate after the fixing pin abuts against the end of the arc-shaped long hole (43).

12. The lockset with improved deadbolt structure of claim 9, wherein, The first fixed component (2) comprises a first panel (21) and a fixed piece (22) connected and fixed to each other, the first panel (21) is arranged between the fixed piece (22) and the first handle (1), the lock piece (41) is arranged between the first panel (21) and the fixed piece (22), the fixed piece (22) is provided with a reset device (5) aligning the through hole (42) and the lock hole (20) for pushing the lock piece (41), the first panel (21) is provided with the lock hole (20), the lock pin (15) passes through the through hole (42) and is inserted into the lock hole (20), or the fixed piece (22) is provided with the lock hole (20) and the first panel (21) is provided with a circular arc long hole, and the lock pin (15) passes through the circular arc long hole, the through hole (42) and is inserted into the lock hole (20).

Images