Lock body with multiple lock tongues

Abstract

The utility model relates to the technical field of door locks, in particular to a lock body with multiple lock tongues, the lock body with the multiple lock tongues comprises a lock body, a lock body shell, a tongue body connecting plate and the multiple lock tongues, the lock body shell is arranged outside the lock body, the tongue body connecting plate is arranged in the lock body shell, and the tongue body connecting plate is used for driving the lock tongues to make the lock tongues stretch out and draw back relative to the lock body shell. The spring bolts are arranged at intervals in the length direction of the bolt body connecting plate, bolt body connecting parts are arranged at the ends, close to the bolt body connecting plate, of the spring bolts, adaptive holes corresponding to the bolt body connecting parts are formed in the bolt body connecting plate, and the bolt body connecting parts and the adaptive holes are in clearance fit and used for adjusting the parallelism of the spring bolts. A plurality of lock tongues are placed, aligned and riveted, the requirement for the size of a tool is large, and the requirement for the placing accuracy is low; after assembly, the parallelism is good, and the whole spring bolt assembly can be prevented from being scrapped; and the spring bolt runs more smoothly.

Description

Technical Field

[0001] The utility model belongs to the technical field of door locks, and in particular relates to a lock body with multiple lock tongues. Background Art

[0002] The multi-bolt design refers to setting multiple bolts inside the lock body to increase the anti-theft performance of the door lock. These bolts may include oblique bolts, square bolts and other types of bolts. Compared with a single bolt, when a multi-bolt is opened violently, even if one bolt is pried open, it will not cause a fatal blow to the anti-theft function. Because the other bolts are still in the locked state, they can continue to play an anti-theft role.

[0003] Slanted bolt: Slanted bolt lock refers to a lock with a certain angle between the bolt and the door lock panel. The bolt is in an oblique shape. The bolt has a spring component, and ordinary door closing and opening operations are completed by the extension and contraction of the bolt. Due to the characteristics of the spring component of the slanted bolt lock, if you only rely on the slanted bolt to lock the door without reverse locking, there is a risk of prying the door with a card.

[0004] Square tongue (also known as safety tongue): The square tongue is usually related to the anti-theft door lock body. When the anti-theft door lock body safety is closed, the square tongue is in a locked state and the door lock cannot be opened. When the anti-theft door lock body safety is opened, it means that the door lock body safety is not locked and the door lock can be opened normally. In order to ensure the safety of the door lock, it is recommended to lock the anti-theft door lock body safety at home or when leaving the room to increase the safety of the door lock and avoid security issues such as theft. In summary, the oblique tongue is a common type of door lock tongue, while the square tongue is usually related to the safety function of the anti-theft door lock body. The oblique tongue mainly completes the door opening and closing operation by telescoping, while the square tongue is used to lock or unlock the anti-theft door to improve the safety of the door lock.

[0005] The most commonly used multi-bolt door locks on the market are those that combine a latch bolt and a square bolt. Since the square bolt has no spring components and is more fixed, it needs to be controlled by the actions of opening and locking the door. Therefore, when used in combination with the latch bolt, it can greatly improve the safety of the door lock.

[0006] Common multi-lock lock bodies usually have multiple lock tongues riveted together as a whole. When the lock body is driven by external force, all the lock tongues are driven out as a whole. However, this method of riveting multiple lock tongues together has the following disadvantages:

[0007] 1. All lock tongues are riveted synchronously. For example, when the tooling of the riveting machine needs to place 6 to 8 lock tongue materials at the same time, they need to be placed, aligned, and riveted. This requires a large size of the tooling and high placement accuracy.

[0008] 2. The lock tongues of multi-lock lock bodies are driven out synchronously, which requires that all lock tongues be parallel to each other. Once individual lock tongues are riveted crookedly or damaged, the entire lock tongue assembly will be scrapped.

[0009] 3. For the square tongue assembly in which all the lock tongues are riveted together, during the movement, the lock tongue that is far away from the driving lever and other power parts is prone to generate rotational torque on the entire square tongue assembly due to friction, making it difficult to knock out the lock tongue. Utility Model Content

[0010] In view of the deficiencies in the prior art, the utility model provides, on one hand, a lock body with multiple lock tongues, wherein the lock body with multiple lock tongues comprises a lock body main body, a lock body shell, a tongue body connecting plate and multiple lock tongues, wherein the lock body shell is arranged outside the lock body main body, the tongue body connecting plate is arranged inside the lock body shell, the tongue body connecting plate is used to drive the lock tongue so that the lock tongue can telescope relative to the lock body shell, the lock tongues are arranged at intervals along the length direction of the tongue body connecting plate, the multiple lock tongues are provided with tongue body connecting parts at one end close to the tongue body connecting plate, the tongue body connecting plate is provided with an adapter hole corresponding to the tongue body connecting part, the tongue body connecting part and the adapter hole are clearance-matched, and the two are used to adjust the parallelism of the lock tongue.

[0011] Preferably, the adapting hole has a gap with the tongue connecting portion in the length direction of the tongue connecting plate, and the adapting hole abuts against the tongue connecting portion in the width direction of the tongue connecting plate.

[0012] Preferably, the tongue connecting portion passes through the adapting hole, and the tongue connecting portion protrudes compared to the surface of the tongue connecting plate.

[0013] Preferably, the lock body with multiple locking tongues further comprises a connecting lining plate, a plurality of movable through holes are arranged on the connecting lining plate, and the locking tongues are allowed to telescope therein, and a door body connecting portion is also arranged on the connecting lining plate.

[0014] Preferably, the lock body with multiple lock tongues also includes a connecting lining and a mounting seat, and a plurality of movable through holes are correspondingly arranged on the connecting lining and the mounting seat. The mounting seat can be detachably mounted on the lock body, and the mounting seat is used for the lock tongue to be separated from the lock body shell. The connecting lining is located on the outside of the mounting seat, and the connecting lining can be detachably mounted on the lock body.

[0015] Preferably, the mounting seat is bent inward to form a shell mounting portion, and the mounting seat and the lock body shell are detachably mounted through the shell mounting portion, and both the tongue connecting plate and the mounting seat are provided with a lining connecting portion, and the two are detachably connected through the lining connecting portion, and the lining connecting portion is arranged at intervals along the tongue connecting plate.

[0016] Preferably, the lock body with multiple lock tongues also includes a driving rod, a manually driven first driving mechanism and an electrically driven second driving mechanism, one end of the driving rod is drivingly connected to the tongue body connecting plate and drives it to telescopically move relative to the lock body shell, and the two sides of the other end of the driving rod are respectively connected to the first driving mechanism and the electrically driven second driving mechanism.

[0017] Preferably, the driving lever includes a driving part and a swing arm, the rotating shaft of the driving part is installed on the lock body, the driving part is connected to the output end of the second driving mechanism through an intermediate gear, the driving part is meshed with the intermediate gear, and the other side of the driving part is meshed with the first driving mechanism, the driving part drives the swing arm to swing around the rotating shaft, and a sliding driving block is also provided at the end of the swing arm away from the driving part, and a guide groove is also provided on the tongue body connecting plate, the guide groove is slidably matched with the sliding driving block, and causes the tongue body connecting plate to move in a direction parallel to the lock tongue.

[0018] Preferably, a sliding limit groove is provided on the tongue connecting plate, the sliding limit groove extends in a direction parallel to the lock tongue, the sliding limit groove is used to limit the moving distance of the tongue connecting plate, and a guide sliding column is provided in the sliding limit groove, and the guide sliding column is installed on the lock body.

[0019] Preferably, a plurality of sub-connecting plates are also arranged on the tongue body connecting plate, the tongue body connecting plate is drivingly connected to the sub-connecting plates, the locking tongue comprises an oblique tongue and a plurality of square tongues, the plurality of square tongues are respectively arranged on the sub-connecting plates, the sliding limit grooves are respectively arranged on the sub-connecting plates, and the guide groove is arranged on one of the sub-connecting plates.

[0020] The utility model arranges, aligns and rivets a plurality of lock tongues, requires a large volume of tooling, and requires a low arrangement accuracy; the parallelism after assembly is good, and the entire lock tongue assembly can be prevented from being scrapped; and the lock tongue runs more smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and other purposes, features and advantages of the present invention will become clearer through a more specific description of the preferred embodiments of the present invention shown in the accompanying drawings. The same reference numerals indicate the same parts in all the accompanying drawings, and the accompanying drawings are not deliberately scaled to the actual size, but the focus is on illustrating the main purpose of the present invention.

[0022] Figure 1 A structural schematic diagram of a lock body with multiple lock tongues provided in an embodiment;

[0023] Figure 2 for Figure 1 A schematic diagram of the structure of the assembly of the connecting lining plate and the lock body;

[0024] Figure 3 for Figure 1 A schematic diagram of the structure from another perspective after the lock body shell is hidden;

[0025] Figure 4 for Figure 2 A partial view of the middle tongue body connecting portion and the matching hole;

[0026] Figure 5 A schematic diagram of the structure of the mounting seat, the driving lever, the tongue connecting plate and the sub-connecting plate provided in the embodiment;

[0027] Figure 6 for Figure 5 Schematic diagram of the structure from another perspective.

[0028] Figure symbols: lock body 100, lock body shell 101, movable through hole 102, tongue connecting plate 103, adapter hole 104, sliding limit groove 105, guide sliding column 106, lock tongue 107, tongue connecting part 108, oblique tongue 109, square tongue 110, connecting lining plate 111, lining plate connecting part 112, door body connecting part 113, first driving mechanism 114, second driving mechanism 115, driving lever 116, driving part 117, swing arm 118, sliding driving block 119, guide groove 120, mounting seat 121, lock body connecting part 122, shell mounting part 123, intermediate gear 124, sub-connecting plate 125. DETAILED DESCRIPTION

[0029] In order to facilitate the understanding of the present invention, a more comprehensive description of the present invention will be given below with reference to the relevant drawings.

[0030] It should be noted that when an element is considered to be "connected" to another element, it may be directly connected to another element and integrated therewith, or there may be an intermediate element at the same time. The terms "installed", "one end", "the other end" and similar expressions used herein are for illustrative purposes only.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art. The terms used in the specification herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0032] Please refer to Figures 1 to 6The first embodiment provides a lock body with multiple lock tongues 107. The lock body with multiple lock tongues 107 includes a lock body 100, a lock body shell 101, a tongue body connecting plate 103 and multiple lock tongues 107. The lock body shell 101 is arranged outside the lock body 100, and the tongue body connecting plate 103 is arranged inside the lock body shell 101. The tongue body connecting plate 103 is used to drive the lock tongue 107 so that the lock tongue 107 can move telescopically relative to the lock body shell 101. The lock tongues 107 are arranged at intervals along the length direction of the tongue body connecting plate 103. One end of the multiple lock tongues 107 close to the tongue body connecting plate 103 is provided with a tongue body connecting portion 108. The tongue body connecting plate 103 is provided with an adapting hole 104 corresponding to the tongue body connecting portion 108. The tongue body connecting portion 108 and the adapting hole 104 are clearance-matched, and the two are used to adjust the parallelism of the lock tongue 107.

[0033] The utility model arranges, aligns and rivets a plurality of lock tongues, requires a large volume of tooling, and requires a low arrangement accuracy; the parallelism after assembly is good, and the entire lock tongue assembly can be prevented from being scrapped; and the lock tongue runs more smoothly.

[0034] In a preferred embodiment, the adapting hole 104 has a gap with the tongue connecting portion 108 in the length direction of the tongue connecting plate 103 , and the adapting hole 104 abuts against the tongue connecting portion 108 in the width direction of the tongue connecting plate 103 .

[0035] The two have a certain elasticity. After the tongue-body connecting portion 108 is inserted into the adapting hole 104, the two are pressed together in the width direction, which facilitates the assembly of the tongue-body connecting plate 103 and the lock tongue 107, and facilitates the body connecting plate to drive the lock tongue 107 to move together after the assembly is completed. The gap in the length direction is used for the parallelism of the lock tongue 107, so that the lock tongue 107 is in a better parallel state.

[0036] In a preferred embodiment, the tongue connecting portion 108 passes through the adapting hole 104 , and the tongue connecting portion 108 protrudes from the surface of the tongue connecting plate 103 .

[0037] Please refer to Figure 5 The above is convenient for further riveting at a later stage, and the protruding portion of the tongue connecting portion 108 compared to the upper surface of the tongue connecting plate 103 can become a better riveting point.

[0038] In a preferred embodiment, the lock body with multiple lock tongues 107 also includes a connecting lining 111, on which a plurality of movable through holes 102 are provided, and the movable through holes 102 are provided for the lock tongues 107 to telescope therein, and a door body connecting portion 113 is also provided on the connecting lining 111.

[0039] The door body connecting portion 113 is generally a threaded connection hole, through which the entire lock body 100 is installed on the door body. The arrangement of the connecting lining plate 111 facilitates the installation of the lock body.

[0040] The second embodiment provides a lock body that is easy to disassemble and replace. The lock body also includes a connecting lining 111 and a mounting seat 121. A plurality of movable through holes 102 are correspondingly provided on the connecting lining 111 and the mounting seat 121. The mounting seat 121 can be detachably installed on the lock body 100. The mounting seat 121 is used for the lock tongue 107 to detach from the lock body shell 101. The connecting lining 111 is located on the outer side of the mounting seat 121. The connecting lining 111 can be detachably installed on the lock body 100.

[0041] Please refer to Figure 2 , Figure 3 , Figure 5 and Figure 6 , which can be detachably installed on the lock body 100, including being installed on the connecting lining plate 111 and the lock body shell 101, etc., and is located on the outside of the mounting seat 121, which refers to the side away from the center of the lock body 100.

[0042] In a preferred embodiment, the mounting seat 121 is bent inward to form a shell mounting portion 123, and the mounting seat 121 and the lock body shell 101 are detachably mounted via the shell mounting portion 123, and both the tongue connecting plate 103 and the mounting seat 121 are provided with a lining connecting portion 112, and the two are detachably connected via the lining connecting portion 112, and the lining connecting portion 112 is spaced apart along the tongue connecting plate 103.

[0043] Please refer to Figure 2 , Figure 3 , Figure 5 and Figure 6 The lining plate connection part 112 is a screw connection hole set on both the tongue body connection plate 103 and the mounting seat 121. The connection holes of the two are in corresponding positions and are fixedly connected by screws. The mounting seat 121 is in the shape of a plate. There are two mounting seats 121, one is set on a square tongue 110 on the left side of the oblique tongue 109, and the other is set on seven square tongues 110 on the right side of the oblique tongue 109. The housing mounting part 123 of the mounting seat 121 is a threaded connection hole. The upper and lower surfaces of the lock body housing 101 are also correspondingly provided with threaded connection holes. The mounting seat 121 and the lock body housing 101 are fixed by screws in the threaded connection holes of the two.

[0044] In a preferred embodiment, the lock body with multiple lock tongues 107 also includes a driving rod 116, a manually driven first driving mechanism 114 and an electrically driven second driving mechanism 115. One end of the driving rod 116 is drivingly connected to the tongue body connecting plate 103 and drives it to telescope relative to the lock body shell 101. The two sides of the other end of the driving rod 116 are respectively connected to the first driving mechanism 114 and the electrically driven second driving mechanism 115.

[0045] The first drive mechanism 114 is generally a drive mechanism formed by a key matching a lock hole, and the rotation of the key drives the first drive mechanism 114 and the drive lever 116 to move in turn. The second drive mechanism 115 is composed of a motor and an output gear set, which can respond to the smart lock module to drive the movement of the lock tongue 107 and the opening and closing of the lock body.

[0046] In a preferred embodiment, the driving lever 116 includes a driving portion 117 and a swing arm 118. The rotating shaft of the driving portion 117 is installed on the lock body 100. The driving portion 117 is driven and connected to the output end of the second driving mechanism 115 through an intermediate gear 124. The driving portion 117 is meshed with the intermediate gear 124, and the other side of the driving portion 117 is meshed with the first driving mechanism 114. The driving portion 117 drives the swing arm 118 to swing around the rotating shaft. A sliding driving block 119 is also provided at one end of the swing arm 118 away from the driving portion 117, and a guide groove 120 is also provided on the tongue connecting plate 103. The guide groove 120 is slidably matched with the sliding driving block 119, and causes the tongue connecting plate 103 to move in a direction parallel to the lock tongue 107.

[0047] In a preferred embodiment, a sliding limit groove 105 is provided on the tongue connecting plate 103, and the sliding limit groove 105 extends in a direction parallel to the lock tongue 107. The sliding limit groove 105 is used to limit the moving distance of the tongue connecting plate 103. A guide sliding column 106 is provided in the sliding limit groove 105, and the guide sliding column 106 is installed on the lock body 100.

[0048] Please refer to Figure 2 , Figure 3 , Figure 5 and Figure 6 At this time, the square tongue 110 in the lock tongue 107 is retracted in the lock body housing 101, that is, the lock body is unlocked. The guide sliding column 106 cooperates with the sliding limit groove 105 to ensure that the tongue body connecting plate 103 moves in the parallel direction of the lock tongue 107 on the one hand, and also forms a travel limit for the tongue body connecting plate 103 on the other hand. When the lock body is opened or closed, when either the first driving mechanism 114 or the second driving mechanism 115 rotates, the driving portion 117 of the driving lever 116 is driven to rotate, and the driving portion 117 rotates to drive the swing arm 118 to swing, and the sliding driving block 119 on the swing arm 118 can move back and forth along the guide groove 120, driving the tongue body connecting plate 103 to move. Due to the limiting and guiding effects of the sliding limit groove 105 and the guide sliding column 106, the tongue body connecting plate 103 is ensured to drive the lock tongue 107 to move in a direction parallel to the lock tongue 107, and the forward and reverse rotation of the driving portion 117 can realize the telescopic movement of the lock tongue 107 compared to the lock body shell 101, thereby realizing the unlocking and locking of the lock body.

[0049] In a preferred embodiment, a plurality of sub-connecting plates are further arranged on the tongue connecting plate 103, and the tongue connecting plate 103 is drivingly connected to the sub-connecting plates. The locking tongue 107 includes an oblique tongue 109 and a plurality of square tongues 110, and the plurality of square tongues 110 are respectively arranged on the sub-connecting plates, and sliding limit grooves 105 are respectively arranged on the sub-connecting plates, and the guide groove 120 is arranged on one of the sub-connecting plates.

[0050] In the prior art: For a multi-lock lock body, there are generally 7 to 9 locking points, which means there are 6 to 8 lock tongues (minus the oblique tongue). Common multi-lock lock bodies usually have these multiple lock tongues riveted together as a whole. When the lock body is driven by external force, all the square tongues are driven out as a whole. However, this method of riveting multiple lock tongues together has the following disadvantages:

[0051] 1. All lock tongues are riveted synchronously, which requires the tooling of the riveting machine to place 6 to 8 lock tongue materials at the same time for placement, alignment, and riveting. The tooling must be large in size and have high placement accuracy.

[0052] 2. The lock tongues of multi-lock lock bodies are driven out synchronously, which requires that all lock tongues be parallel to each other. Once individual lock tongues are riveted crookedly or damaged, the entire lock tongue assembly will be scrapped.

[0053] 3. For the square tongue assembly in which all the lock tongues are riveted together, during the movement, the lock tongue that is far away from the driving lever and other power parts is prone to generate rotational torque on the entire square tongue assembly due to friction, making it difficult to knock out the lock tongue.

[0054] The first embodiment of the utility model has a lock body with multiple lock tongues to mainly solve the above problems:

[0055] 1. Break the whole into parts, reduce the number of square tongues that need to be placed at the same time during riveting work, reduce the verticality requirements of the tooling during riveting, and improve the riveting yield.

[0056] 2. When there is a quality problem with the lock tongue, only the individual lock tongue needs to be scrapped, which reduces losses.

[0057] 3. The lock tongue transmits power through the adapter hole (usually a round hole) of the tongue body connecting plate and the tongue body connecting part (usually a bolt bone) of the lock tongue. There is a gap between the two, which allows the lock tongues to be misaligned and avoid air. The synchronous resistance caused by the synchronous driving of the lock tongue in the overall riveting solution is avoided. The lock tongue is driven step by step, which is conducive to the motor driving the lock tongue.

[0058] 4. When the lock tongue assembly is assembled into the lock body box, the problem of the lock tongue being unable to be assembled can be avoided because there is a gap between the round hole and the bolt bone.

[0059] 5. Round hole and bolt on the connecting plate of the bolt assembly: the shape of the hole is not limited, and the gap plays a role.

[0060] 6. The tongue connecting part is higher than the surface of the adapting hole, which can prevent the tongue connecting plate from warping up and causing the tongue connecting part to separate from the adapting hole.

[0061] The second embodiment of the utility model provides a lock body with an easily removable liner:

[0062] A fixed mounting seat (usually a thin plate) is added between the lining plate and the lock tongue. Due to the disconnection of the position of the oblique tongue, the mounting seat is divided into two parts.

[0063] 1. Constrain the square tongue. When the liner is removed, the square tongue still has a mounting seat to maintain its position, preventing the square tongue from deviating or losing its assembly position due to external force. When the liner is reassembled, it is convenient to align the lock tongue and facilitate removal and replacement.

[0064] 2. The lining plate and the mounting base support the lock tongue at the same time, which is equivalent to thickening the lining plate, improving the strength of the locking point, and improving the anti-theft performance of the lock body.

[0065] 3. It is convenient to quickly replace other connecting linings, such as one-piece connecting linings (linings with the same length as the door) or other non-standard connecting linings.

[0066] 4. The mounting seat is integrally bent and stamped, and the bent part is threaded to connect the lock body shell. There is a threaded hole on the front to fix the lining plate.

[0067] 5. In terms of design, the size of the movable through hole of the mounting seat is slightly larger than the hole size of the connecting liner, which reduces excessive constraints and prevents the square tongue from being scratched and blocked by the movable through hole of the mounting seat when it is tilted during installation.

[0068] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0069] In the description of this specification, the description with reference to the terms "preferred embodiment", "further embodiment", "other embodiments" or "specific example" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0070] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A lock body with multiple lock tongues, characterized in that: The lock body with multiple lock tongues includes a lock body, a lock body shell, a tongue body connecting plate and multiple lock tongues, the lock body shell is arranged outside the lock body, the tongue body connecting plate is arranged inside the lock body shell, the tongue body connecting plate is used to drive the lock tongue so that the lock tongue can telescope relative to the lock body shell, the lock tongues are arranged at intervals along the length direction of the tongue body connecting plate, the multiple lock tongues are provided with tongue body connecting parts at one end close to the tongue body connecting plate, the tongue body connecting plate is provided with an adapter hole corresponding to the tongue body connecting part, the tongue body connecting part and the adapter hole are clearance-matched, and the two are used to adjust the parallelism of the lock tongue.

2. The lock body with multiple lock tongues as claimed in claim 1, characterized in that: The adapting hole has a gap with the tongue connecting portion in the length direction of the tongue connecting plate, and the adapting hole abuts against the tongue connecting portion in the width direction of the tongue connecting plate.

3. The lock body with multiple lock tongues as claimed in claim 2, characterized in that: The tongue connecting portion passes through the adapting hole, and the tongue connecting portion protrudes compared to the surface of the tongue connecting plate.

4. The lock body with multiple lock tongues as claimed in claim 1, characterized in that: The lock body with multiple locking tongues also includes a connecting lining plate, on which a plurality of movable through holes are arranged, and the locking tongues are provided with telescopic movements therein, and a door body connecting portion is also arranged on the connecting lining plate.

5. The lock body with multiple lock tongues as claimed in claim 1, characterized in that: The lock body with multiple lock tongues also includes a connecting lining and a mounting seat, and a plurality of movable through holes are correspondingly arranged on the connecting lining and the mounting seat. The mounting seat can be detachably mounted on the lock body, and the mounting seat is used for the lock tongue to detach from the lock body shell. The connecting lining is located on the outside of the mounting seat, and the connecting lining can be detachably mounted on the lock body.

6. The lock body with multiple lock tongues as claimed in claim 5, characterized in that: The mounting seat is bent inward to form a shell mounting portion, and the mounting seat and the lock body shell are detachably mounted through the shell mounting portion. Both the tongue connecting plate and the mounting seat are provided with lining connecting portions, and the two are detachably connected through the lining connecting portions, and the lining connecting portions are spaced apart along the tongue connecting plate.

7. The lock body with multiple lock tongues according to claim 1, characterized in that: The lock body with multiple lock tongues also includes a driving rod, a manually driven first driving mechanism and an electrically driven second driving mechanism. One end of the driving rod is driven and connected to the tongue body connecting plate and drives it to telescope relative to the lock body shell. The two sides of the other end of the driving rod are respectively connected to the first driving mechanism and the electrically driven second driving mechanism.

8. The lock body with multiple lock tongues as claimed in claim 7, characterized in that: The driving lever includes a driving part and a swing arm, the rotating shaft of the driving part is installed on the lock body, the driving part is connected to the output end of the second driving mechanism through an intermediate gear, the driving part is meshed with the intermediate gear, and the other side of the driving part is meshed with the first driving mechanism. The driving part drives the swing arm to swing around the rotating shaft, and a sliding driving block is also provided at the end of the swing arm away from the driving part, and a guide groove is also provided on the tongue body connecting plate, the guide groove is slidably matched with the sliding driving block, and causes the tongue body connecting plate to move in a direction parallel to the lock tongue.

9. The lock body with multiple lock tongues as claimed in claim 8, characterized in that: The tongue connecting plate is provided with a sliding limit groove, which extends in a direction parallel to the lock tongue and is used to limit the moving distance of the tongue connecting plate. A guide sliding column is provided in the sliding limit groove, and the guide sliding column is installed on the lock body.

10. The lock body with multiple lock tongues according to claim 9, characterized in that: A plurality of sub-connecting plates are also arranged on the tongue connecting plate, and the tongue connecting plate is drivingly connected to the sub-connecting plates. The locking tongue comprises an oblique tongue and a plurality of square tongues, and the plurality of square tongues are respectively arranged on the sub-connecting plates. The sliding limiting grooves are respectively arranged on the sub-connecting plates, and the guide groove is arranged on one of the sub-connecting plates.

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