Lock body with clutch structure

By designing a lock body with a clutch mechanism, and using a key or turn handle to control the locking device, the problem of existing lock bodies being easily unlocked by force is solved, achieving higher security and durability.

CN223593946UActive Publication Date: 2025-11-25刘岷
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Patent Information

Application Number
CN202423027077.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-06
Publication Date
2025-11-25
Estimated Expiration
2034-12-06

AI Technical Summary

Technical Problem

Existing lock bodies are easily unlocked by forcibly turning the handle, resulting in poor security.

Method used

A lock body with a clutch structure is designed, including a lock shell, a lock tongue assembly, a first actuating element, a second actuating element, a torsion spring, a locking device, a transmission device, and a prying device. The prying device is controlled by a key or a throttle to drive the transmission device, thereby achieving locking and unlocking and preventing malicious rotation of the door handle.

Benefits of technology

This allows the door handle to rotate freely relative to the lock body, preventing malicious unlocking or damage and improving the durability and security of the lock body.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223593946U_ABST
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Abstract

The utility model relates to the technical field of door locks, in particular to a lock body with a clutch structure, which comprises a lock shell, and a spring bolt assembly, a first shifting piece, a second shifting piece, a torsion spring, a locking device, a transmission device and a shifting and picking device which are respectively arranged in the lock shell, the second shifting piece is rotatably arranged on the outer side of the first shifting piece in a sleeving mode, the two ends of the torsion spring abut against the inner side of the lock shell and the first shifting piece respectively, the second shifting piece is connected with the spring bolt assembly, one end of the locking device is connected with the first shifting piece and the second shifting piece, and the other end of the locking device is connected with the first shifting piece and the second shifting piece. The transmission device is connected with the shifting and picking device and the other end of the locking device, and a square through hole is formed in the shifting and picking device. According to the lock body with the clutch structure, the door handle can idle relative to the lock body, the situation that a person maliciously rotates the door handle to unlock or damage the lock body is prevented, and the durability and safety of the lock body are improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to door lock technical field especially has the lock body of clutch structure. BACKGROUND

[0002] In daily life, the door lock is the important barrier of guaranteeing property and privacy safety, its installation is on the door panel, and it is convenient for people to rotate to open and close the door, the handle part on the market is generally directly installed on the panel and does not have clutch structure itself, and the door lock can be opened by rotating the handle, the handle is not only easy to be maliciously rotated and damaged, but also is extremely easy to trigger unlocking after violent pressing, and the safety is poor.

[0003] Therefore, the prior art still needs to be improved. CONTENT OF THE UTILITY MODEL

[0004] In view of the above deficiencies of the prior art, the utility model aims at providing the lock body with clutch structure to solve the problem that the existing lock body is easy to be unlocked by violent rotation of the handle and has poor safety.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] The lock body with clutch structure comprises a lock shell, a lock tongue assembly, a first driving piece, a second driving piece, a torsion spring, a locking device, a transmission device and a driving pick device which are respectively arranged in the lock shell, the first driving piece is rotatably arranged in the lock shell, a handle hole is arranged on the first driving piece, the second driving piece is rotatably sleeved on the outer side of the first driving piece, the two ends of the torsion spring are respectively abutted against the inner side of the lock shell and the first driving piece, the second driving piece is connected with the lock tongue assembly, one end of the locking device is connected with the first driving piece and the second driving piece, the transmission device is connected with the other end of the locking device and the driving pick device, and a square hole is arranged on the driving pick device.

[0007] The lock body with clutch structure as above, the first driving piece comprises an inner cylinder, a first driving block and a rotating groove, the inner cylinder is rotatably connected with the lock shell, the handle hole is arranged on the inner cylinder, the first driving block is arranged on the outer side of the inner cylinder, the rotating groove is arranged between the first driving block and the inner cylinder, the two ends of the torsion spring are respectively abutted against the first driving block and the inner side of the lock shell, the second driving piece comprises an outer sleeve, a second driving block and a notch, the outer sleeve is sleeved on the outer side of the inner cylinder, the second driving block is arranged on the outer side of the outer sleeve and connected with the lock tongue assembly, the notch is arranged on the side of the outer sleeve facing the first driving block, and the rotating groove and the notch are connected through clamping.

[0008] The lock body with the clutch structure has three limiting columns, any one of which is arranged on the side of the first dial block away from the torsion spring, and the other two limiting columns are arranged on the two sides of the second dial block.

[0009] The lock body with the clutch structure has a locking device including two insertion holes, a bolt, a limiting ring and a first spring, the two insertion holes are arranged on the first dial member and the second dial member respectively, the limiting ring is arranged on the outside of the bolt, the bolt is movably arranged in the two insertion holes, the first spring is sleeved on the bolt, the two ends of the first spring are respectively in abutment with the inside of the insertion hole of the second dial member and the limiting ring, the transmission device includes a transmission mechanism and an abutment member, the transmission mechanism is connected with the dial member and the abutment member, the abutment member is provided with a curved surface on the side facing the locking device, and the side of the bolt away from the second dial member is in abutment with the curved surface.

[0010] The lock body with the clutch structure has a dial member including a rotating column, a swing mechanism and a third dial block, the square through hole is arranged on the rotating column, the rotating column is rotatably arranged in the lock shell, the swing mechanism and the third dial block are arranged on the two sides outside the rotating column, and the transmission mechanism is provided with a clamping groove clamped with the third dial block.

[0011] The lock body with the clutch structure has a transmission mechanism including a sliding member, a first sliding groove, a protrusion, two clamping members, a connecting column, a limiting block and a second spring, the clamping groove is arranged on the side of the sliding member facing the dial member, the first sliding groove is arranged on the lock shell, the protrusion is arranged on the side of the sliding member facing the first sliding groove, the protrusion is slidably clamped in the first sliding groove, the two clamping members are arranged along the length direction of the sliding member, the clamping members are concave in shape, the connecting column is clamped in the two clamping members, the limiting block and the abutment member are arranged on the two sides of the connecting column respectively, the second spring is sleeved on the connecting column, and the two ends of the second spring are in abutment with the abutment member and the clamping member close to the abutment member respectively.

[0012] The lock body with the clutch structure as described above, the swing mechanism comprises two arc-shaped grooves, a connecting block, two pin columns, a sleeve ring, a swing rod, a fixed plate and a fourth spring, the two arc-shaped grooves are arranged on the two sides of the lock shell, the connecting block is connected with the rotating column, the two pin columns are arranged on the two sides of the connecting block respectively, the two pin columns are arranged in the two arc-shaped grooves respectively, the sleeve ring is sleeved on any pin column, the fixed plate is arranged in the lock shell, one end of the swing rod is slidably arranged in the fixed plate, the other end of the swing rod is connected with the sleeve ring, the fourth spring is sleeved on the swing rod, and the two ends of the fourth spring are respectively abutted with the fixed plate and the sleeve ring.

[0013] The lock body with the clutch structure as described above, the lock tongue assembly comprises a swing piece, two first vertical columns, a first clamping spring, an insertion plate, a first concave piece, a second connecting rod, a lock tongue, a clamping block, two second sliding grooves and two fifth springs, the lock tongue is movably arranged in the lock shell, the two second sliding grooves are arranged on the two sides of the lock shell, the first concave piece is slidably arranged in the two second sliding grooves on the upper and lower sides of the one end away from the lock tongue, the two first vertical columns are arranged in the lock shell adjacently, the swing piece and the first clamping spring are rotatably arranged in any first vertical column respectively, the two ends of the first clamping spring are abutted with the swing piece and the other first vertical column respectively, the insertion plate is inserted in the lock shell adjacently any second sliding groove, the first concave piece is clamped on one side of the insertion plate, the second connecting rod is sequentially arranged in the two sides of the first concave piece and the insertion plate, the lock tongue and the clamping block are arranged on the two sides of the second connecting rod respectively, the two fifth springs are sleeved on the second connecting rod respectively, any fifth spring is abutted between the lock tongue and the first concave piece, the other fifth spring is abutted between the inner side of the side of the first concave piece away from the swing piece and the insertion plate, and one end of the swing piece is inserted between the insertion plate and the inner side of the side of the first concave piece away from the lock tongue.

[0014] The lock body with the clutch structure as described above further comprises a reverse bolt assembly arranged in the lock shell adjacent to the bolt assembly, a circular arc member is arranged on one side of the first recessed member facing the reverse bolt assembly, the reverse bolt assembly comprises two second vertical columns, a locking member, a second clamping spring, two third sliding grooves, a baffle, a reverse bolt, a second recessed member, a second connecting rod and a sixth spring, the reverse bolt is movably arranged on the lock shell, the two third sliding grooves are correspondingly arranged on two sides of the lock shell, the two sides of one end of the second recessed member away from the reverse bolt are slidably inserted into the two third sliding grooves respectively, the baffle is arranged in the lock shell, the baffle is arranged on one side of the second recessed member away from the reverse bolt, the second connecting rod is arranged on the second recessed member, one end of the second connecting rod is connected with the reverse bolt, the sixth spring is abutted between the second recessed member and the baffle, the two second vertical columns are arranged in the lock shell adjacent to each other, the locking member and the second clamping spring are rotatably arranged on any one of the second vertical columns respectively, a circular arc part is arranged on one side of the locking member near the circular arc member, two extension parts are arranged on the two sides of the bottom of the locking member respectively, and the two extension parts are respectively provided with a guide arc surface matched with the second recessed member on one side facing the second recessed member.

[0015] Advantageous effects:

[0016] The utility model discloses a lock body with clutch structure, including lock shell, and the bolt assembly, first dolly, second dolly, torsion spring, locking device, transmission and dolly device are arranged in the lock shell respectively, first dolly and second dolly are respectively correspondingly provided with handle hole, and door handle is inserted into handle hole, when dolly device is at first state position, locking device is not locked and is connected first dolly and second dolly, first dolly and second dolly can rotate relatively, namely door handle can idle relative to this lock body, the bolt assembly of this lock body is opposite and is locked with door frame, and torsion spring can push first dolly reset, when key or handle is rotated dolly device is at second state position through square through -hole, dolly device drives transmission and moves, locking device is connected first dolly and second dolly, and rotates door handle, and second dolly pushes bolt assembly to unlock, the lock body of the application can realize the idle of door handle relative to the lock body, prevent someone maliciously from rotating door handle and unlocking or destroying the lock body, improve the durability and security of lock body. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The utility model provides a lock body's structural schematic diagram;

[0018] Figure 2 The utility model provides a lock body's explosion map;

[0019] Figure 3 The explosion view of another angle of the lock body provided by the utility model;

[0020] Figure 4 The internal structure schematic view of the lock body provided by the utility model;

[0021] Reference Signs: 1, lock shell; 11, limiting column 2, lock tongue assembly; 21, swing piece; 22, first stand column; 23, first clamping spring; 24, plug-in plate; 25, first concave piece; 251, circular arc piece; 26, first connecting rod; 27, lock tongue; 28, clamping block; 29, second sliding groove; 20, fifth spring; 3, first pushing piece; 31, handle hole; 32, inner column body; 33, first pushing block; 34, rotating groove; 4, second pushing piece; 41, outer sleeve; 42, second pushing block; 43, notch; 5, torsion spring; 6, locking device; 61, plug-in hole; 62, plug pin; 63, limiting ring; 64, first spring; 7, transmission device; 71, transmission mechanism; 711, clamping groove; 72, abutting piece; 73, arc surface; 74, sliding piece; 75, first sliding groove; 76, protruding block; 77, clamping piece; 78, connecting column; 79, limiting block; 70, second spring; 8, pushing device; 81, square through hole; 82, rotating column; 83, swing mechanism; 831, arc-shaped groove; 832, connecting block; 833, pin column; 834, sleeve ring; 835, swing rod; 836, fixed plate; 837, fourth spring; 84, third pushing block; 9, reverse lock tongue assembly; 91, second stand column; 92, locking piece; 921, circular arc part; 922, extension part; 923, guide arc surface; 93, second clamping spring; 94, third sliding groove; 95, baffle; 96, reverse lock tongue; 97, second concave piece; 98, second connecting rod; 99, sixth spring. DETAILED DESCRIPTION

[0022] The utility model provides a lock body with clutch structure, in order to make the purpose, technical scheme and effect of the utility model more clear, definite, the following refers to the drawing and raises example to make further detailed description to the utility model.

[0023] In the description of the utility model, it is understood that the orientation or position relation indicated by the terms such as '' top '' is based on the orientation or position relation shown in the drawing, just for the convenience of describing the utility model and simplifying the description, and can not be understood as the limitation of the utility model, in addition, the terms such as '' installation '' and '' connection '' should be understood in a broad sense, and for ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.

[0024] As Figures 1-4As shown, the lock body with clutch structure provided by the embodiment of the present application comprises a lock shell 1, a lock bolt assembly 2, a first poking member 3, a second poking member 4, a torsion spring 5, a locking device 6, a transmission device 7 and a poking device 8 which are arranged in the lock shell 1 respectively, the first poking member 3 is rotatably arranged in the lock shell 1, a handle hole 31 is arranged on the first poking member 3, the second poking member 4 is rotatably sleeved on the outer side of the first poking member 3, the two ends of the torsion spring 5 abut against the inner side of the lock shell 1 and the first poking member 3 respectively, the second poking member 4 is connected with the lock bolt assembly 2, one end of the locking device 6 is connected with the first poking member 3 and the second poking member 4, the transmission device 7 is connected with the other end of the locking device 6 and the poking device 8, and a square hole 81 is arranged on the poking device 8.

[0025] The utility model discloses a kind of lock body with clutch structure, including lock shell 1, and respectively in the lock shell 1 Lock bolt assembly 2, first poking member 3, second poking member 4, torsion spring 5, locking device 6, transmission device 7 and poking device 8, first poking member 3 and second poking member 4 are respectively corresponding with handle hole 31 It is arranged, door handle is inserted into the handle hole 31, when the poking device 8 is in the first state position, the locking device 6 is not locked and is connected with the first poking member 3 and the second poking member 4, the first poking member 3 and the second poking member 4 can be relatively rotated, i.e. door handle can be relatively this lock body idle, the lock bolt assembly 2 of this lock body is relatively locked with door frame, and the torsion spring 5 can push the first poking member 3 reset;When key or handle is rotated and the poking device 8 is in the second state position by the square hole 81, the poking device 8 drives the transmission device 7 to move, the locking device 6 is locked and is connected with the first poking member 3 and the second poking member 4, and door handle is rotated, the second poking member 4 pushes the lock bolt assembly 2 to unlock, the lock body disclosed in the application can realize the idle of door handle relative to this lock body, prevent someone maliciously rotating door handle to unlock or destroying lock body, improve the durability and security of lock body.

[0026] The first knob 3 comprises an inner cylinder 32, a first knob block 33 and a rotating groove 34, the inner cylinder 32 is rotatably connected with the lock shell 1, the handle hole 31 is arranged on the inner cylinder 32, the first knob block 33 is arranged on the outer side of the inner cylinder 32, the rotating groove 34 is arranged between the first knob block 33 and the inner cylinder 32, the two ends of the torsion spring 5 are respectively abutted with the first knob block 33 and the inner side of the lock shell 1, the second knob 4 comprises an outer sleeve 41, a second knob block 42 and a notch 43, the outer sleeve 41 is sleeved on the outer side of the inner cylinder 32, the second knob block 42 is arranged on the outer side of the outer sleeve 41 and connected with the lock bolt assembly 2, the notch 43 is arranged on the side of the outer sleeve 41 facing the first knob block 33, the rotating groove 34 and the notch 43 are clampedly connected, the cooperation of the inner cylinder 32 and the outer sleeve 41 realizes the relative rotation of the first knob 3 and the second knob 4, the notch 43 limits the rotation angle of the first knob 3 and the fourth knob 4, preventing the door handle from being excessively rotated to affect the normal use of the lock body.

[0027] The lock shell 1 is further provided with three limiting columns 11, any one of the limiting columns 11 is arranged on the side of the first knob block 33 away from the torsion spring 5, and the other two limiting columns 11 are respectively arranged on the two sides of the second knob block 42, the limiting column 11 arranged on the side of the first knob block 33 limits the position of the door handle rotation reset, and the two limiting columns 11 arranged on the two sides of the second knob block 42 limit the rotation angle of the door handle when triggering the lock bolt assembly 2, preventing excessive rotation from causing the components in the lock body to be disconnected.

[0028] The locking device 6 comprises two insertion holes 61, a bolt 62, a limiting ring 63 and a first spring 64, the two insertion holes 61 are respectively arranged on the first knob 3 and the second knob 4, the limiting ring 63 is arranged on the outer side of the bolt 62, the bolt 62 is movably arranged in the two insertion holes 61, the first spring 64 is sleeved on the bolt 62, and the two ends of the first spring 64 respectively abut against the inner side of the insertion hole 61 of the second knob 4 and the limiting ring 63. The transmission device 7 comprises a transmission mechanism 71 and an abutting piece 72, the transmission mechanism 71 connects the pick device 8 and the abutting piece 72, one side of the abutting piece 72 towards the locking device 6 is provided with an arc surface 73, and the side of the bolt 62 away from the second knob 4 abuts against the arc surface 73. The abutting piece 72 is driven by the transmission mechanism 71 to push the bolt 62 to insert into or separate from the insertion hole 62 of the first knob 3, so as to realize the locking of the first knob 3 and the second knob 4. When the door handle is rotated, the arc surface 73 changes the position corresponding to the rotation, so that the bolt 62 is always inserted into the two insertion holes 62, preventing the bolt 62 from separating from the insertion hole 62 of the first knob 3 or excessively compressing the first spring 64 to cause the first spring 64 to deform.

[0029] The pick device 8 comprises a rotating column 82, a swing mechanism 83 and a third knob 84, the square through hole 81 is arranged on the rotating column 82, the rotating column 82 is rotatably arranged in the lock shell 1, the swing mechanism 83 and the third knob 84 are respectively arranged on the two sides of the rotating column 82, the transmission mechanism 71 is provided with a clamping groove 711 clamped with the third knob 84, the rotating column 82 is controlled to rotate through the square through hole 81, the swing mechanism 83 limits the rotation angle of the rotating column 82, and the third knob 84 is clamped in the clamping groove 711, so as to trigger the movement of the transmission mechanism 71.

[0030] The transmission mechanism 71 comprises a sliding piece 74, a first sliding groove 75, a protrusion 76, two clamping pieces 77, a connecting column 78, a limiting block 79 and a second spring 70. The clamping groove 711 is arranged on one side of the sliding piece 74 facing the poking device 8. The first sliding groove 75 is arranged on the lock shell 1. The protrusion 76 is arranged on one side of the sliding piece 74 facing the first sliding groove 75. The protrusion 76 is slidingly clamped on the first sliding groove 75. The two clamping pieces 77 are arranged along the length direction of the sliding piece 74. The clamping pieces 77 are concave in shape. The connecting column 78 is clamped on the two clamping pieces 77. The limiting block 79 and the abutting piece 72 are respectively arranged on the two sides of the connecting column 78. The second spring 70 is sleeved on the connecting column 78. The two ends of the second spring 70 respectively abut against the abutting piece 72 and the clamping piece 77 close to the abutting piece 72. The protrusion 76 is embedded in the first sliding groove 75 to limit the movement direction of the sliding piece 74 and the relative position of the lock shell 1. The third poking block 84 pushes the sliding piece 74 to move, pushes the abutting piece 72 to move close to or away from one side of the second poking piece 4, so as to realize the locking and unlocking of the locking device 6. The second spring 70 is arranged to prevent the abutting piece 72 from excessively pushing the bolt 62 to cause excessive compression of the first spring 64 or the abutting piece 72 from not pushing the bolt 62 to the predetermined position.

[0031] The swinging mechanism 83 comprises two arc-shaped grooves 831, a connecting block 832, two pin columns 833, a sleeve ring 834, a swinging rod 835, a fixed plate 836 and a fourth spring 837. The two arc-shaped grooves 831 are correspondingly arranged on the two sides of the lock shell 1. The connecting block 832 is connected with the rotating column 82. The two pin columns 833 are respectively arranged on the two sides of the connecting block 832. The two pin columns 833 are respectively and correspondingly penetratingly arranged in the two arc-shaped grooves 831. The sleeve ring 834 is sleeved on any pin column 833. The fixed plate 836 is arranged in the lock shell 1. One end of the swinging rod 835 is slidingly penetratingly arranged in the fixed plate 836. The other end of the swinging rod 835 is connected with the sleeve ring 834. The fourth spring 837 is sleeved on the swinging rod 835. The two ends of the fourth spring 837 respectively abut against the fixed plate 836 and the sleeve ring 834. The two pin columns 833 are respectively slidingly arranged in the two arc-shaped grooves 831 to limit the rotation angle of the rotating column 82. Through the cooperation of the fourth spring 837 and the swinging rod 835, the poking device 8 is abutted on one end of any arc-shaped groove 831 to limit the rotation of the rotating column 82.

[0032] The lock tongue assembly 2 comprises a swing piece 21, two first vertical columns 22, a first clamping spring 23, an insertion plate 24, a first concave piece 25, a first connecting rod 26, a lock tongue 27, a clamping block 28, two second sliding grooves 29 and two fifth springs 20. The lock tongue 27 is movably arranged on the lock shell 1. The two second sliding grooves 29 are arranged on the two sides of the lock shell 1. The upper and lower sides of the end of the first concave piece 25 away from the lock tongue 27 are slidably arranged in the two second sliding grooves 29. The two first vertical columns 22 are adjacently arranged in the lock shell 1. The swing piece 21 and the first clamping spring 23 are rotatably arranged on any first vertical column 22. The two ends of the first clamping spring 23 are in abutment with the swing piece 21 and the other first vertical column 22, respectively. The insertion plate 24 is inserted into the lock shell 1 adjacent to any second sliding groove 29. The first concave piece 25 is clamped on one side of the insertion plate 24. The first connecting rod 26 is sequentially arranged on the two sides of the first concave piece 25 and the insertion plate 24. The lock tongue 27 and the clamping block 28 are arranged on the two sides of the first connecting rod 26, respectively. The two fifth springs 20 are sleeved on the first connecting rod 26. Any fifth spring 20 is in abutment between the lock tongue 27 and the first concave piece 25. The other fifth spring 20 is in abutment between the inner side of the side of the first concave piece 25 away from the swing piece 21 and the insertion plate 24. The end of the swing piece 21 is inserted between the insertion plate 24 and the inner side of the side of the first concave piece 25 away from the lock tongue 27. The swing piece 21 rotates around any first vertical column 22. The two ends of the first clamping spring 23 are in abutment with the swing piece 21 and the other first vertical column 22, respectively. The swing piece 21 is swung by the second shifting block 42 to drive the lock tongue 27 to extend into or out of the lock shell 1.

[0033] The lock body further comprises a reverse bolt assembly 9 adjacent to the bolt assembly 2 and arranged in the lock shell 1, the first recessed part 25 is provided with a circular arc part 251 on one side of the reverse bolt assembly 9, the reverse bolt assembly 9 comprises two second vertical columns 91, a locking part 92, a second clamping spring 93, two third sliding grooves 94, a baffle 95, a reverse bolt 96, a second recessed part 97, a second connecting rod 98 and a sixth spring 99, the reverse bolt 96 is movably arranged on the lock shell 1, the two third sliding grooves 94 are correspondingly arranged on two sides of the lock shell 1, the second recessed part 97 is slidably and insertingly arranged in the two third sliding grooves 94 on two sides away from the reverse bolt 96, the baffle 95 is arranged in the lock shell 1, the baffle 95 is arranged on one side of the second recessed part 97 away from the reverse bolt 96, the second connecting rod 98 is arranged on the second recessed part 97, one end of the second connecting rod 98 is connected with the reverse bolt 96, the sixth spring 99 is in abutment between the second recessed part 97 and the baffle 95, the two second vertical columns 91 are arranged adjacent to each other in the lock shell 1, the locking part 92 and the second clamping spring 93 are rotatably arranged on any one of the second vertical columns 91, the locking part 92 is provided with a circular arc part 921 which is bent and extended on one side close to the circular arc part 251, the locking part 92 is provided with two extension parts 922 which are extended on two sides of the bottom of the locking part 92, the two extension parts 922 are respectively provided with guide arc surfaces 923 which are in abutment with the second recessed part 97 on one side of the second recessed part 97, when a card is inserted into a gap between doors from outside and the bolt assembly 2 and the reverse bolt assembly 9 are pushed and withdrawn into the lock shell 1, the reverse bolt 96 is withdrawn to drive the second recessed part 97 to move synchronously, due to the elastic force of the second clamping spring 93, the locking part 92 is rotated, and the second recessed part 97 on one side away from the reverse bolt 96 is moved along the corresponding guide arc surface 923 in abutment, so as to adjust the relative angle between the circular arc part 921 and the circular arc part 251, and abut to limit the bolt assembly 2 to be withdrawn into the lock shell 1, thereby playing a role of preventing theft.

[0034] It can be understood that, for those skilled in the art, equivalent replacements or changes can be made according to the technical scheme and the utility model concept of the utility model, and all these changes or replacements shall belong to the protection scope of the utility model.

Claims

1. A lock body with a clutch mechanism, characterized in that, The lock includes a lock housing (1), and a latch assembly (2), a first actuating member (3), a second actuating member (4), a torsion spring (5), a locking device (6), a transmission device (7), and a prying device (8) respectively disposed within the lock housing (1). The first actuating member (3) is rotatably disposed within the lock housing (1) and has a handle hole (31). The second actuating member (4) is rotatably sleeved on the outside of the first actuating member (3). The two ends of the torsion spring (5) abut against the inside of the lock housing (1) and the first actuating member (3) respectively. The second actuating member (4) is connected to the latch assembly (2). One end of the locking device (6) is connected to the first actuating member (3) and the second actuating member (4). The transmission device (7) is connected to the prying device (8) and the other end of the locking device (6). The prying device (8) has a square through hole (81).

2. The lock body with a clutch structure according to claim 1, characterized in that, The first actuating element (3) includes an inner column (32), a first actuating block (33), and a rotating groove (34). The inner column (32) is rotatably connected to the lock housing (1). The handle hole (31) passes through the inner column (32). The first actuating block (33) is located on the outer side of the inner column (32). The rotating groove (34) is located between the first actuating block (33) and the inner column (32). The two ends of the torsion spring (5) are respectively connected to the first actuating block (33) and the inner column (32). The inner side of the lock housing (1) abuts against the second actuating member (4), which includes an outer sleeve (41), a second actuating block (42), and a notch (43). The outer sleeve (41) is sleeved on the outer side of the inner column (32). The second actuating block (42) is located on the outer side of the outer sleeve (41) and connected to the latch assembly (2). The notch (43) is located on the side of the outer sleeve (41) facing the first actuating block (33). The rotating groove (34) and the notch (43) are engaged.

3. The lock body with a clutch structure according to claim 2, characterized in that, The lock housing (1) is also provided with three limiting posts (11). One of the limiting posts (11) is located on the side of the first lever (33) facing away from the torsion spring (5), and the other two limiting posts (11) are respectively located on both sides of the second lever (42).

4. The lock body with a clutch structure according to claim 1, characterized in that, The locking device (6) includes two insertion holes (61), a pin (62), a limiting ring (63), and a first spring (64). The two insertion holes (61) are respectively located on the first actuating member (3) and the second actuating member (4). The limiting ring (63) is located on the outside of the pin (62). The pin (62) is movably inserted into the two insertion holes (61). The first spring (64) is sleeved on the pin (62). Both ends abut against the inner side of the insertion hole (61) of the second actuating member (4) and the limiting ring (63), respectively. The transmission device (7) includes a transmission mechanism (71) and an abutting member (72). The transmission mechanism (71) connects the toggle device (8) and the abutting member (72). The abutting member (72) has an arc surface (73) on the side facing the locking device (6). The pin (62) abuts against the arc surface (73) on the side away from the second actuating member (4).

5. The lock body with a clutch structure according to claim 4, characterized in that, The picking device (8) includes a rotating column (82), a swing mechanism (83) and a third picking block (84). The square through hole (81) passes through the rotating column (82). The rotating column (82) is rotatably disposed inside the lock housing (1). The swing mechanism (83) and the third picking block (84) are respectively disposed on both sides outside the rotating column (82). The transmission mechanism (71) is provided with a slot (711) that engages with the third picking block (84).

6. The lock body with a clutch structure according to claim 5, characterized in that, The transmission mechanism (71) includes a sliding member (74), a first groove (75), a protrusion (76), two locking members (77), a connecting post (78), a limiting block (79), and a second spring (70). The locking groove (711) is located on the side of the sliding member (74) facing the toggle device (8). The first groove (75) is located on the lock housing (1). The protrusion (76) is located on the side of the sliding member (74) facing the first groove (75). The protrusion (76) is slidably locked in the first groove (75). On the sliding member (74), two snap-fit ​​pieces (77) are arranged along the length direction of the sliding member (74). The snap-fit ​​pieces (77) are concave in shape. The connecting post (78) is snapped onto the two snap-fit ​​pieces (77). The limiting block (79) and the abutment piece (72) are respectively arranged on both sides of the connecting post (78). The second spring (70) is sleeved on the connecting post (78). The two ends of the second spring (70) abut against the abutment piece (72) and the snap-fit ​​piece (77) on the side near the abutment piece (72) respectively.

7. The lock body with a clutch structure according to claim 5, characterized in that, The swing mechanism (83) includes two arc-shaped grooves (831), a connecting block (832), two pins (833), a collar (834), a swing rod (835), a fixing plate (836), and a fourth spring (837). The two arc-shaped grooves (831) are respectively located on both sides of the lock housing (1). The connecting block (832) is connected to the rotating column (82). The two pins (833) are respectively located on both sides of the connecting block (832), and the two pins (833) are respectively inserted through the two rotating columns (82). On the arc groove (831), the collar (834) is sleeved on any of the pins (833), the fixing plate (836) is disposed inside the lock housing (1), one end of the swing rod (835) slides through the fixing plate (836), the other end of the swing rod (835) is connected to the collar (834), the fourth spring (837) is sleeved on the swing rod (835), and the two ends of the fourth spring (837) abut against the fixing plate (836) and the collar (834) respectively.

8. The lock body with a clutch structure according to claim 1, characterized in that, The latch assembly (2) includes a swing member (21), two first pillars (22), a first retaining ring (23), a plug plate (24), a first concave member (25), a first connecting rod (26), a latch (27), a locking block (28), two second sliding grooves (29), and two fifth springs (20). The latch (27) is movably mounted on the lock housing (1). The two second sliding grooves (29) are correspondingly mounted on both sides of the lock housing (1). The upper and lower sides of the first concave member (25) away from the latch (27) are slidably mounted in the two second sliding grooves (29). The two first pillars (22) are adjacent to each other in the lock housing (1). The swing member (21) and the first retaining ring (23) are rotatably mounted on either of the first pillars (22). The two ends of the first retaining ring (23) abut against the swing member (21) and the other first pillar (22), respectively. The plug plate (24) The plate (24) is inserted into the lock housing (1) through any of the second sliding grooves (29) adjacent to it. The first concave part (25) is engaged on one side of the insertion plate (24). The first connecting rod (26) passes through both sides of the first concave part (25) and the insertion plate (24) in sequence. The locking tongue (27) and the locking block (28) are respectively disposed on both sides of the first connecting rod (26). The two fifth springs (20) are respectively sleeved on the lock housing (1). On the first link (26), one of the fifth springs (20) abuts between the latch (27) and the first concave member (25), and the other fifth spring (20) abuts between the inner side of the first concave member (25) away from the swing member (21) and the plug plate (24). One end of the swing member (21) is inserted between the plug plate (24) and the inner side of the first concave member (25) away from the latch (27).

9. The lock body with a clutch structure according to claim 8, characterized in that, The lock body also includes a deadbolt assembly (9) adjacent to the deadbolt assembly (2) disposed in the lock shell (1). The first concave part (25) is provided with an arc part (251) on the side facing the deadbolt assembly (9). The deadbolt assembly (9) includes two second pillars (91), a locking part (92), a second snap ring (93), two third slide grooves (94), a baffle (95), a deadbolt (96), a second concave part (97), a second connecting rod (98), and a sixth spring (99). The deadbolt (96) is movably disposed on the lock shell (1). The two third slide grooves (94) are correspondingly disposed on both sides of the lock shell (1). The two sides of the second concave part (97) away from the deadbolt (96) are slidably inserted into the two third slide grooves (94). The baffle (95) is disposed in the lock shell (1). The baffle (95) is disposed on the second concave part. (97) On the side away from the anti-locking tongue (96), the second connecting rod (98) passes through the second concave part (97), one end of the second connecting rod (98) is connected to the anti-locking tongue (96), the sixth spring (99) abuts between the second concave part (97) and the baffle (95), the two second pillars (91) are arranged adjacently in the lock housing (1), the locking member (92) and the second snap ring (93) are rotatably arranged on either of the second pillars (91), the locking member (92) is bent and extended with an arc portion (921) on the side near the arc member (251), the bottom of the locking member (92) is extended with extension portions (922) on both sides, and the two extension portions (922) are respectively provided with guide arc surfaces (923) that fit with the second concave part (97) on the side facing the second concave part (97).