Sealing lock cylinder and lock device

Abstract

The application provides a sealed lock cylinder and a lock device. The sealed lock cylinder comprises a dial member and a transmission assembly arranged in the interior of the dial member and moving along the axial direction of the dial member. The interior of the dial member is provided with a partition plate arranged along the radial direction. The transmission assembly comprises an outer transmission member, an inner transmission member and a connecting rod coaxially connected. The connecting rod is arranged through the partition plate. The partition plate is located between the outer transmission member and the inner transmission member. The outer end of the connecting rod penetrates into the outer transmission member and is connected with the outer transmission member in an interference fit to form a seal. The outer end of the outer transmission member is arranged to form a reserved gap with the outer lock cylinder. The outer end of the inner transmission member is in movable abutment with the partition plate to form a seal. The sealed lock cylinder can improve the sealing property and safety.

Description

Technical Field

[0001] This application relates to the field of lock device technology, and in particular to a sealed lock cylinder and a lock device. Background Technology

[0002] The lock cylinder is the core component of the locking device. The lock cylinder usually includes an inner lock cylinder, an outer lock cylinder, a dial wheel, and a transmission assembly. The dial wheel is designed to be linked to the bolt. By using a key to work with the lock cylinder, the dial wheel rotates, which drives the bolt to extend or retract to unlock or lock the device.

[0003] In existing lock cylinders, the transmission components and dial components have poor sealing performance. By injecting liquid from the outside of the lock cylinder, the anti-theft function of the lock cylinder can be compromised, reducing its security. Utility Model Content

[0004] The purpose of this application is to solve the aforementioned technical problems by providing a sealed lock cylinder and a locking device, thereby improving the sealing performance and security of the lock cylinder. To achieve the above objective, the technical solution of this application is as follows: In a first aspect, this application provides a sealed lock cylinder, including a dial wheel and a transmission assembly disposed inside the dial wheel and movable along its axial direction; the dial wheel is provided with a partition arranged radially therein, and the transmission assembly includes an outer transmission member, an inner transmission member and a connecting rod coaxially connected, the connecting rod is disposed through the partition, the partition is located between the outer transmission member and the inner transmission member, the outer end of the connecting rod passes through the outer transmission member and is interference-fitted with the outer transmission member to form a seal, the outer end of the outer transmission member is configured to form a reserved gap with the outer lock cylinder, and the outer end of the inner transmission member movably abuts against the partition to form a seal.

[0005] In one possible implementation, the transmission assembly further includes a fixed sleeve, into which the inner end of the connecting rod passes and is interference-fitted with the fixed sleeve.

[0006] In one possible implementation, the connecting rod has a first stepped portion and a second stepped portion, the outer end of the inner transmission member abuts against the first stepped portion, the inner end of the inner transmission member abuts against the fixed sleeve, and the outer transmission member is provided with a stepped groove for accommodating the second stepped portion.

[0007] In one possible implementation, the sealing lock cylinder further includes an inner lock cylinder, which is rotatably connected to the inner circumference of the dial component. The inner lock cylinder and the dial component are linked by an internal transmission component. The inner lock cylinder is provided with a first mounting cavity for avoiding the fixed sleeve, and an elastic element is provided between the fixed sleeve and the cavity wall of the first mounting cavity.

[0008] In one possible implementation, a limiting cavity is formed between the inner end of the inner transmission component and the inner lock core, and the maximum axial distance of the limiting cavity is equal to the axial distance of the fixed sleeve.

[0009] In one possible implementation, the sealing lock cylinder further includes a reset member. The inner lock cylinder is provided with an inner lock channel and a second mounting cavity. One end of the second mounting cavity is connected to the limiting cavity, and the other end of the second mounting cavity is connected to the inner lock channel. The reset member is disposed in the second mounting cavity and is axially movable. The reset member is movably abutted against the inner end of the inner transmission member.

[0010] In one possible implementation, the outer periphery of the inner transmission component is provided with an inner transmission part arranged along the axial direction, the inner periphery of the dial component is provided with a first inner linkage groove, the inner lock core is provided with a second inner linkage groove in the circumferential direction, and the inner transmission part is respectively provided with the first inner linkage groove and the second inner linkage groove.

[0011] In one possible implementation, the sealing lock cylinder further includes an outer lock cylinder, which is rotatably connected to the inner circumference of the dial component. The outer lock cylinder and the dial component are linked by an external transmission component. The outer circumference of the external transmission component is provided with an external transmission part arranged axially. The inner circumference of the dial component is provided with a first external linkage groove, and the outer lock cylinder is provided with a second external linkage groove in the circumferential direction. The external transmission part is respectively provided with the first external linkage groove and the second external linkage groove.

[0012] In one possible implementation, the outer lock core is provided with a positioning member arranged radially, and the outer periphery of the outer transmission member is provided with a positioning part, which moves against the end face of the positioning member facing the outer end of the outer lock core.

[0013] Secondly, this application provides a locking device, including the aforementioned sealed lock cylinder.

[0014] Compared with the prior art, the beneficial effects of the sealing lock cylinder and locking device of this application are mainly reflected in: A seal is formed by the interference fit between the connecting rod and the external transmission component. When liquid enters the dial component from the outer lock core, an initial seal is formed. The outer end of the external transmission component is designed to form a reserved gap with the outer lock core, so that the transmission component has sufficient movement space within the dial component. This ensures that the outer end of the inner transmission component moves against the partition to form a seal. When liquid enters from the outer lock core and overflows through the partition, an effective seal is formed. The transmission component and the dial component work together to have good sealing performance, making it difficult for liquid to enter the space where the inner lock core is located from the external space of the outer lock core, thus improving the security performance of the sealed lock core. Attached Figure Description

[0015] Figure 1 A schematic diagram of a sealing lock cylinder provided for an embodiment of this application; Figure 2 for Figure 1 The diagram shows a cross-sectional view of the sealing lock cylinder in one embodiment; Figure 3 for Figure 2 The diagram shows a cross-sectional view of the dial and transmission assembly in one embodiment. Figure 4 for Figure 3 The diagram shown is a structural schematic of the transmission assembly in one embodiment. Figure 5 for Figure 4 The diagram shown is a structural schematic of one embodiment of the connecting rod; Figure 6 for Figure 1 The diagram shown is a structural schematic of one embodiment of the dial component; Figure 7 for Figure 1 The inner and outer lock cylinders shown are structural schematic diagrams of one embodiment; Figure 8 for Figure 1 The inner and outer lock cylinders shown are illustrated in a second structural diagram of one embodiment. Figure 9 for Figure 1 The diagram shown is a structural schematic of one embodiment of the housing.

[0016] Figure label: Dial wheel component 1, partition plate 11, inner cavity of dial wheel 12, outer cavity of dial wheel 13; Transmission assembly 2, external transmission component 21, internal transmission component 22, connecting rod 23, fixed sleeve 24, first step portion 25, second step portion 26, step groove 27; Inner lock cylinder 3, first mounting cavity 31, limiting cavity 32, reset component 33, inner lock channel 34, second mounting cavity 35, inner tumbler module 36, elastic component 37; Internal transmission part 41, first internal linkage groove 42, second internal linkage groove 43; 5. External lock cylinder, 51. Positioning component, 52. External lock channel, 53. External tumbler module; External transmission part 61, first external linkage groove 62, second external linkage groove 63, positioning part 64; 7. Shell 7, main body 71, outer locking shell 72, inner locking shell 73, and easily broken structure 74. Detailed Implementation

[0017] To make the technical solutions and advantages of the embodiments of this application clearer, the exemplary embodiments of this application will be described in further detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not an exhaustive list of all embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0018] Example 1 This embodiment provides a sealed lock cylinder, which is applied to a lock device. The specific lock device can be applied to door locks, box locks, vehicle locks, etc., and can be unlocked or locked using a key.

[0019] In related technologies, when the transmission assembly 2 and the dial wheel 1 cooperate, the transmission assembly 2 moves axially to unlock the outer lock cylinder 5 in conjunction with the dial wheel 1, or to unlock the inner lock cylinder 3 in conjunction with the dial wheel 1. However, due to multiple instances of insufficient sealing between the transmission assembly 2 and the dial wheel 1, if liquid, such as refrigerant or glue, is introduced into the outer lock cylinder 5, the liquid will enter the inner lock cylinder 3 along the transmission assembly 2, causing the transmission assembly 2 and the inner lock cylinder 3 to freeze or become fixed. At this point, the transmission assembly 2 and the dial wheel 1 are in an unrestricted state, and the dial wheel 1 can be easily rotated by forcibly breaking the outer lock cylinder 5, leading to a failure of the lock device's anti-theft function. This embodiment solves the above problems by improving the overall lock cylinder, resulting in better sealing when the transmission assembly 2 and the dial wheel 1 cooperate, effectively preventing liquid from entering the inner lock cylinder 3, thereby improving the security of the sealed lock cylinder. A detailed explanation follows. In this embodiment, "inner end" and "outer end" refer to the "inner end" and "outer end" relative to the orientation of the installation space where the sealing lock cylinder is located. "Inner end" refers to the end face of the corresponding component facing the inner space of the sealing lock cylinder, and "outer end" refers to the end face of the corresponding component facing the outer space of the sealing lock cylinder. For example, if the sealing lock cylinder is installed on a door (not shown in the figure), the inner lock cylinder 3 is located in the inner space of the door, that is, the inner lock cylinder 3 is located indoors, and the outer lock cylinder 5 is located in the outer space of the door, that is, the outer lock cylinder 5 is located outdoors. "Inner end" is the end face of the corresponding component facing indoors, and "outer end" is the end face of the corresponding component facing outdoors.

[0020] like Figures 1-4 As shown, the sealing lock cylinder includes a dial wheel 1 and a transmission assembly 2 disposed inside the dial wheel 1 and moving along its axial direction. The dial wheel 1 has a partition 11 arranged radially inside it. The transmission assembly 2 includes an outer transmission component 21, an inner transmission component 22 and a connecting rod 23 coaxially connected. The connecting rod 23 passes through the partition 11. The partition 11 is located between the outer transmission component 21 and the inner transmission component 22. The outer end of the connecting rod 23 passes through the outer transmission component 21 and is press-fitted with the outer transmission component 21 to form a seal. The outer end of the outer transmission component 21 is configured to form a reserved gap L with the outer lock cylinder 5. The outer end of the inner transmission component 22 moves against the partition 11 to form a seal.

[0021] The dial wheel 1 has a generally hollow cylindrical structure. A turning part (not shown in the figure) is provided on the outer periphery of the dial wheel 1. The dial wheel 1 is configured to rotate in conjunction with the latch (not shown in the figure). The latch can be installed in the door body and is located above the sealing lock cylinder. When the turning part of the dial wheel 1 rotates to the latch, it pushes the latch to extend or retract, thus unlocking or locking. The rotation of the dial wheel 1 unlocks or locks. By providing a transmission assembly 2 that moves axially, when the transmission assembly 2 simultaneously engages with both the outer lock cylinder 5 and the dial wheel 1, the outer lock cylinder 5 and the dial wheel 1 can rotate in tandem. When the transmission assembly 2 simultaneously engages with both the inner lock cylinder 3 and the dial wheel 1, the inner lock cylinder 3 and the dial wheel 1 can rotate in tandem.

[0022] In this embodiment, the connecting rod 23 and the external transmission component 21 are interference-fitted to form a seal. When liquid enters the dial component 1 from the outer lock core 5, a preliminary seal is formed. The outer end of the external transmission component 21 is configured to form a reserved gap L with the outer lock core 5, so that the transmission component 2 has sufficient movement space in the dial component 1, thereby ensuring that the outer end of the inner transmission component 22 moves against the partition 11 to form a seal. When liquid enters from the outer lock core 5 and overflows through the partition 11, an effective seal is formed. The transmission component 2 and the dial component 1 have good sealing performance. Liquid is difficult to enter the space where the inner lock core 3 is located from the external space of the outer lock core 5, thus improving the safety performance of the sealed lock core.

[0023] In one embodiment, the transmission assembly 2 further includes a fixed sleeve 24, the inner end of the connecting rod 23 passes through the fixed sleeve 24 and is interference-fitted with the fixed sleeve 24, the connecting rod 23 has a first step portion 25 and a second step portion 26, the outer end of the inner transmission member 22 abuts against the first step portion 25, the inner end of the inner transmission member 22 abuts against the fixed sleeve 24, and the outer transmission member 21 is provided with a step groove 27 for accommodating the second step portion 26, the outer end of the second step portion 26 is flush with the outer end of the outer transmission member 21 to form a seal.

[0024] like Figures 3-5 As shown, the inner transmission component 22 is provided with an inner shaft hole (not marked in the figure), and the connecting rod 23 passes through the inner shaft hole. The diameter of the fixing sleeve 24 is larger than that of the inner shaft hole, so the fixing sleeve 24 can abut against the inner end of the inner transmission component 22. At the same time, the first step portion 25 abuts against the outer end of the inner transmission component 22. The first step portion 25 and the fixing sleeve 24 clamp and position the inner transmission component 22, so that the inner transmission component 22 can move synchronously with the connecting rod 23.

[0025] The stepped groove 27 is correspondingly provided with the second stepped part 26. The second stepped part 26 is embedded in the stepped groove 27. The second stepped part 26 and the stepped groove 27 are tightly fitted to ensure the sealing performance of the second stepped part 26 and the stepped groove 27. The connecting rod 23 is mounted on the external transmission component 21 without shaking. At the same time, the second stepped part 26 and the stepped groove 27 form a limit. When the second stepped part 26 is subjected to an inward pushing force, the connecting rod 23 and the external transmission component 21 move synchronously.

[0026] In one embodiment, the sealing lock cylinder further includes an inner lock cylinder 3, which is rotatably connected to the inner circumference of the dial component 1. The inner lock cylinder 3 and the dial component 1 are linked by an inner transmission component 22. The inner lock cylinder 3 is provided with a first mounting cavity 31 for avoiding the fixed sleeve 24. An elastic element 37 is provided between the fixed sleeve 24 and the cavity wall of the first mounting cavity 31.

[0027] like Figure 2 , Figure 3 As shown, the dial component 1 has a dial inner cavity 12, the opening of which faces the internal space of the sealing lock cylinder. The dial inner cavity 12 is used to accommodate the inner transmission component 22. The outer end of the inner lock cylinder 3 extends into the dial inner cavity 12. The inner transmission component 22 can move between the dial inner cavity 12 and the inner lock cylinder 3, and the outer periphery of the inner transmission component 22 is slidably adapted to the dial inner cavity 12 and the inner lock cylinder 3 respectively.

[0028] The inner lock cylinder 3 is provided with a first mounting cavity 31. The central axis of the first mounting cavity 31 is on the same straight line as the central axis of the connecting rod 23. The fixing sleeve 24 is fitted onto the end of the connecting rod 23. The diameter of the first mounting cavity 31 is larger than the diameter of the fixing sleeve 24. The opening of the first mounting cavity 31 faces the connecting rod 23. The fixing sleeve 24 can move and extend and retract in the first mounting cavity 31 as the connecting rod 23 moves. The fixing sleeve 24 and the first mounting cavity 31 are connected by an elastic element 37. The elastic element 37 can be a spring. In the normal state, that is, when no key is inserted into the outer lock cylinder 5, the elastic element 37 is in an expanded state and pushes against the fixed sleeve 24, so that the outer end of the inner transmission element 22 abuts against the partition 11. Part of the inner transmission element 22 is in a limiting engagement with the dial element 1, and another part of the inner transmission element 22 is in a limiting engagement with the inner lock cylinder 3, so that the inner lock cylinder 3 and the dial element 1 are linked. When an external part (not shown in the figure) is inserted into the outer lock cylinder 5, the inner transmission element 22 is pushed towards the inner lock cylinder 3 by the external part. The external part refers to a key or a key-like part, so that the fixed sleeve 24 enters the first mounting cavity 31, the elastic element 37 is in a compressed state, the inner transmission element 22 and the dial element 1 are released from the limiting, and the inner transmission element 22 moves into the inner lock cylinder 3, so as to release the linkage effect between the inner lock cylinder 3 and the dial element 1.

[0029] In one embodiment, the outer periphery of the inner transmission member 22 is provided with an inner transmission part 41 arranged along the axial direction, the inner periphery of the dial member 1 is provided with a first inner linkage groove 42, and the inner lock core 3 is provided with a second inner linkage groove 43 in the circumferential direction. The inner transmission part 41 is respectively provided with the first inner linkage groove 42 and the second inner linkage groove 43.

[0030] like Figure 2 , Figure 3 , Figure 6 , Figure 8 As shown, the first inner linkage groove 42 is axially disposed on the inner wall of the inner cavity 12 of the dial wheel, and the first inner linkage groove 42 and the second inner linkage groove 43 are arranged in the same direction. When the outer end of the inner transmission member 22 abuts against the partition plate 11, a part of the inner transmission part 41 is positioned in the first inner linkage groove 42, and another part of the inner transmission part 41 is positioned in the second inner linkage groove 43. The inner lock core 3 rotates to drive the inner transmission member 22 and the dial wheel 1 to rotate synchronously. When the inner transmission member 22 moves axially and disengages from the first inner linkage groove 42, and is only positioned in the second inner linkage groove 43, the dial wheel 1 and the inner lock core 3 are disengaged.

[0031] In one embodiment, a limiting cavity 32 is formed between the inner end of the inner transmission member 22 and the inner lock core 3, and the maximum axial distance of the limiting cavity 32 is equal to the axial distance of the fixed sleeve 24.

[0032] The inner transmission component 22 is axially movable. When the inner transmission component 22 gradually approaches the inner lock core 3, the axial distance of the limiting cavity 32 decreases. When the inner transmission component 22 gradually moves away from the inner lock core 3, the axial distance of the limiting cavity 32 increases. When the outer lock cylinder 5 is forcibly removed by external force, the outer lock cylinder 5, the outer transmission component 21, and the connecting rod 23 are removed. The connecting rod 23 disengages from the inner transmission component 22, causing the fixing sleeve 24 to fall into the limiting cavity 32. Due to its own weight, the fixing sleeve 24 is located below the position of the first mounting cavity 31. The axial distance of the fixing sleeve 24 is equal to the maximum axial distance of the limiting cavity 32. The inner transmission component 22 is stably positioned in the inner cavity 12 of the dial wheel, and the outer end of the inner transmission component 22 abuts against the partition 11 to form a seal. The inner transmission component 22 is respectively limited and cooperated with the dial wheel component 1 and the inner lock cylinder 3. Since the inner lock cylinder 3 has an inner tumbler module 36, the dial wheel component 1 cannot be rotated from the external space at this time, but it can be unlocked normally from the internal space of the inner lock cylinder 3. When the fixing sleeve 24 disengages from the connecting rod 23, the inner transmission component 22 maintains the limiting effect with the dial wheel component 1 and the inner lock cylinder 3, which can realize the anti-theft function of sealing the lock cylinder.

[0033] In one embodiment, the sealing lock cylinder further includes a reset member 33. The inner lock cylinder 3 is provided with an inner lock channel 34 and a second mounting cavity 35. One end of the second mounting cavity 35 is connected to the limiting cavity 32, and the other end of the second mounting cavity 35 is connected to the inner lock channel 34. The reset member 33 is disposed in the second mounting cavity 35 and is axially movable. The reset member 33 is movable and abuts against the inner end of the inner transmission member 22.

[0034] The inner lock channel 34 is adapted to the key, and the inner lock cylinder 3 also has an inner pin module 36, which extends elastically to the inner lock channel 34 to cooperate with the key to turn the inner lock cylinder 3 to unlock or lock.

[0035] like Figure 2 As shown, the axial length of the reset member 33 is less than that of the second mounting cavity 35. When the key enters the inner lock channel 34, the key can simultaneously enter the second mounting cavity 35, thereby pushing the reset member 33 from the second mounting cavity 35 to the limiting cavity 32, so that the outer end of the reset member 33 abuts against the inner end of the inner transmission member 22. On the one hand, when the elastic member 37 fails, that is, when the inner transmission member 22 cannot reset and abut against the partition 11, the reset member 33 is pushed to force the inner transmission member 22 to reset, ensuring that the inner lock cylinder 3 can be unlocked normally from the internal space; on the other hand, when the outer lock cylinder 5 enters the outer component and affects the reset of the inner transmission member 22, for example, when the outer component is stuck in the outer lock cylinder 5, the reset member 33 is pushed to force the inner transmission member 22 to reset, ensuring that the inner lock cylinder 3 can be unlocked normally from the internal space.

[0036] In one embodiment, the sealing lock cylinder further includes an outer lock cylinder 5, which is rotatably connected to the inner circumference of the dial component 1. The outer lock cylinder 5 and the dial component 1 are linked by an outer transmission component 21. The outer circumference of the outer transmission component 21 is provided with an outer transmission part 61 arranged axially. The inner circumference of the dial component 1 is provided with a first outer linkage groove 62, and the outer lock cylinder 5 is provided with a second outer linkage groove 63 in the circumferential direction. The outer transmission part 61 is respectively provided with the first outer linkage groove 62 and the second outer linkage groove 63.

[0037] like Figure 2 , Figure 3 , Figure 6 , Figure 7 As shown, the dial component 1 has a dial outer cavity 13, the opening of which faces the external space of the sealing lock cylinder. The dial outer cavity 13 is used to accommodate the external transmission component 21. The inner end of the external lock cylinder 5 extends into the dial outer cavity 13. The external transmission component 21 can move between the dial outer cavity 13 and the external lock cylinder 5, and the outer periphery of the external transmission component 21 is slidably adapted to the dial outer cavity 13 and the external lock cylinder 5 respectively.

[0038] In the normal state, when no key is inserted into the outer lock cylinder 5, the outer transmission component 21 separates from the partition 11 due to the force of the elastic element 37, and the outer transmission component 21 enters the outer lock cylinder 5. The outer transmission part 61 is only positioned in the second outer linkage groove 63, and the outer transmission component 21 is released from the limiting position of the dial component 1. When a key is inserted into the outer lock cylinder 5, the outer transmission component 21 moves axially from the outer lock cylinder 5 and gradually approaches the partition 11. A part of the outer transmission part 61 is positioned in the second outer linkage groove 63, and another part of the outer transmission part 61 is positioned in the first outer linkage groove 62. The outer transmission component 21 is limited and cooperated with the outer lock cylinder 5 and the dial component 1 respectively. The rotation of the outer lock cylinder 5 drives the outer transmission component 21 and the dial component 1 to rotate synchronously.

[0039] The outer lock cylinder 5 has an outer lock channel 52 and an outer pin tumbler module 53. The outer pin tumbler module 53 extends elastically into the outer lock channel 52 to cooperate with the key to turn the outer lock cylinder 5 to unlock or lock.

[0040] In one embodiment, the outer lock core 5 is provided with a positioning member 51 arranged radially, and the outer periphery of the outer transmission member 21 is provided with a positioning part 64, which moves against the end face of the positioning member 51 toward the outer end of the outer lock core 5.

[0041] The number of positioning elements 51 can be multiple to ensure the stability of the cooperation between the positioning elements 51 and the positioning part 64. The positioning part 64 can be a positioning groove, one end of which is open and extends to the inner end of the outer transmission member 21, and the other end of which is closed and faces the outer end of the outer transmission member 21. The positioning element 51 extends into the positioning groove and moves against the closed end of the positioning groove, that is, the end face of the positioning part 64 and the positioning element 51 facing the outer end of the outer lock cylinder 5 moves against each other.

[0042] When the outer lock cylinder 5 is forcibly removed, the outer lock cylinder 5 applies force to the positioning part 64 through the positioning member 51. During the separation process of the outer lock cylinder 5 from the dial wheel 1, the outer lock cylinder 5 and the outer transmission member 21 detach from the dial wheel 1 together. Then, the outer transmission member 21 and the connecting rod 23 move out of the dial wheel 1 together. The connecting rod 23 separates from the inner transmission member 22, while the inner transmission member 22 remains in the dial wheel 1. Through the cooperation of the positioning member 51 and the positioning part 64, it is ensured that the outer transmission member 21 is removed along with the outer lock cylinder 5, avoiding the outer transmission member 21 remaining in the dial wheel 1 after the outer lock cylinder 5 is removed. If the outer transmission member 21 is exposed in the dial wheel 1 after the outer lock cylinder 5 is removed, the dial wheel 1 will rotate by operating the transmission component 2, causing the anti-theft function of the sealed lock cylinder to fail.

[0043] In one embodiment, the sealing lock cylinder further includes a housing 7, which includes a main body 71, an outer lock shell 72 and an inner lock shell 73 disposed on the main body 71 at intervals. The outer lock shell 72 is used to install the outer lock cylinder 5, and the inner lock shell 73 is used to install the inner lock cylinder 3. A dial 1 is accommodated between the outer lock shell 72 and the inner lock shell 73. The dial 1 is connected to the inner lock cylinder 3 and the outer lock cylinder 5 respectively. The main body 71 is provided with a breakable structure 74, which allows the outer lock shell 72 to be separated from the main body 71 by breaking.

[0044] For example, such as Figure 2 , Figure 9 As shown, the inner pin tumbler module 36 and the outer pin tumbler module 53 are both disposed in the main body 71; the inner lock cylinder 3, the outer lock cylinder 5 and the dial 1 can be arranged coaxially, the main body 71 is used to be installed on the door body, and the outer lock shell 72 is exposed outside the outer lock hole 52 of the outer lock cylinder 5, and the inner lock shell 73 is exposed outside the inner lock hole 34 of the inner lock cylinder 3.

[0045] The easily breakable structure 74 can be a connecting rib, meaning that the main body 71 is divided into two separate parts, which are connected by the connecting rib. When the connecting rib breaks, the two separate parts form their own independent components. This can be understood as follows: when the easily breakable structure 74 breaks, the outer lock cylinder 5, outer lock shell 72, outer pin tumbler module 53, outer transmission component 21, and connecting rod 23 are all disassembled from the external space of the door, thus leaving the remaining components in the internal space of the door to achieve the anti-theft effect.

[0046] Example 2 This embodiment provides a locking device, including the sealing lock cylinder and the bolt as described in the above embodiment; by rotating the dial 1 in the sealing lock cylinder, the dial 1 is engaged with the bolt, thereby realizing unlocking and locking.

[0047] In this embodiment, the locking device has the same beneficial effect as the sealing lock cylinder, as described above.

[0048] In the description of this application, unless otherwise stated, directional terms such as "up" and "down" generally refer to the relative "up" and "down" of the corresponding components in the direction of gravity when they are in use.

[0049] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0050] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0051] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended embodiments are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0052] Obviously, those skilled in the art can make various changes and modifications to this application without departing from the inventive concept and scope of this application. Therefore, if such modifications and modifications fall within the scope of this application and its equivalents, this application also intends to include such modifications and modifications.

Claims

1. A sealing lock cylinder, characterized in that: The system includes a dial (1) and a transmission assembly (2) disposed inside the dial (1) and moving along its axial direction. The dial (1) is provided with a partition (11) arranged radially inside it. The transmission assembly (2) includes an outer transmission member (21), an inner transmission member (22), and a connecting rod (23) coaxially connected. The connecting rod (23) passes through the partition (11). The partition (11) is located between the outer transmission member (21) and the inner transmission member (22). The outer end of the connecting rod (23) passes through the outer transmission member (21) and is press-fitted with the outer transmission member (21) to form a seal. The outer end of the outer transmission member (21) is configured to form a reserved gap with the outer lock core (5). The outer end of the inner transmission member (22) moves against the partition (11) to form a seal.

2. The sealing lock cylinder according to claim 1, characterized in that: The transmission assembly (2) also includes a fixed sleeve (24), the inner end of the connecting rod (23) passes through the fixed sleeve (24) and is interference-fitted with the fixed sleeve (24).

3. The sealing lock cylinder according to claim 2, characterized in that: The connecting rod (23) has a first step portion (25) and a second step portion (26). The outer end of the inner transmission member (22) abuts against the first step portion (25), and the inner end of the inner transmission member (22) abuts against the fixed sleeve (24). The outer transmission member (21) is provided with a step groove (27) for accommodating the second step portion (26).

4. The sealing lock cylinder according to claim 2, characterized in that: The sealing lock cylinder also includes an inner lock cylinder (3), which is rotatably connected to the inner circumference of the dial component (1). The inner lock cylinder (3) and the dial component (1) are linked through the inner transmission component (22). The inner lock cylinder (3) is provided with a first mounting cavity (31) for avoiding the fixed sleeve (24). An elastic element (37) is provided between the fixed sleeve (24) and the cavity wall of the first mounting cavity (31).

5. The sealing lock cylinder according to claim 4, characterized in that: The inner end of the inner transmission member (22) and the inner lock core (3) form a limiting cavity (32), and the maximum distance of the limiting cavity (32) along the axial direction is equal to the distance of the fixed sleeve (24) along the axial direction.

6. The sealing lock cylinder according to claim 5, characterized in that: The sealing lock cylinder also includes a reset member (33). The inner lock cylinder (3) is provided with an inner lock channel (34) and a second mounting cavity (35). One end of the second mounting cavity (35) is connected to the limiting cavity (32), and the other end of the second mounting cavity (35) is connected to the inner lock channel (34). The reset member (33) is disposed in the second mounting cavity (35). The reset member (33) is axially movable and abuts against the inner end of the inner transmission member (22).

7. The sealing lock cylinder according to claim 4, characterized in that: The outer periphery of the inner transmission component (22) is provided with an inner transmission part (41) arranged along the axial direction, the inner periphery of the dial component (1) is provided with a first inner linkage groove (42), the inner lock core (3) is provided with a second inner linkage groove (43) in the circumferential direction, and the inner transmission part (41) is respectively provided with the first inner linkage groove (42) and the second inner linkage groove (43).

8. The sealing lock cylinder according to claim 1, characterized in that: The sealing lock cylinder also includes an outer lock cylinder (5), which is rotatably connected to the inner circumference of the dial component (1). The outer lock cylinder (5) and the dial component (1) are linked by the outer transmission component (21). The outer circumference of the outer transmission component (21) is provided with an outer transmission part (61) arranged along the axial direction. The inner circumference of the dial component (1) is provided with a first outer linkage groove (62). The outer lock cylinder (5) is provided with a second outer linkage groove (63) in the circumferential direction. The outer transmission part (61) is respectively provided with the first outer linkage groove (62) and the second outer linkage groove (63).

9. The sealing lock cylinder according to claim 8, characterized in that: The outer lock core (5) is provided with a positioning member (51) arranged radially, and the outer drive member (21) is provided with a positioning part (64) on its outer periphery. The positioning part (64) and the positioning member (51) move against each other on the end face of the outer lock core (5) facing the outer end.

10. A locking device, characterized in that: Includes the sealed lock cylinder as described in any one of claims 1-9.

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