Novel lock with plastic shell
The three-way structure plastic shell lock design solves the problem of easy damage to metal lock shells, achieving cost reduction, weight reduction and service life extension, which meets the requirements of energy conservation and emission reduction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WENZHOU YILIQI LOCKS CO LTD
- Filing Date
- 2024-12-14
- Publication Date
- 2026-05-08
AI Technical Summary
The lock shells of existing ring locks are mostly made of metal, which makes them prone to damage during use, especially the stress-bearing parts when the chain is pulled.
The lock design with a three-way structure uses a plastic shell to distribute the force through a partition, allowing the lock shell to be made of plastic. When the lock cylinder assembly is in the locked state, the lock pin is located on the lock plate, the lock through hole, and the lower insertion port. When the lock connecting ring is pulled, the joint and the pin are stressed, while the lock through hole of the partition is basically unstressed.
It reduces the cost and weight of the lock, the plastic shell is aesthetically pleasing and comes in a variety of styles, meets energy conservation and emission reduction requirements, improves service life and meets national standards for bicycle locks.
Smart Images
Figure CN224213959U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of locks, and in particular to a novel plastic-cased lock. Background Technology
[0002] Locks are devices that serve a sealing function, including locks, keys, and their accessories. Locks are essential items in daily life for preventing theft or protecting privacy, and they are used in many places and environments. There are also many types of locks, and different types are used for different places. This solution focuses on the improvement of ring locks, which mainly include chain locks, ring door locks, bicycle locks, and anti-theft wire locks.
[0003] Most ring locks currently on the market have lock bodies made of metal, which ensures the lock's security and prevents damage. There are also lock bodies made of plastic on the market, but when these plastic lock bodies pull the chain, the force is borne by the lock body itself, making them prone to damage.
[0004] To address the aforementioned problems, this utility model provides improvements. Utility Model Content
[0005] This utility model proposes a novel plastic shell lock, which solves the above-mentioned problems existing in the use of the prior art.
[0006] The technical solution of this utility model is implemented as follows:
[0007] A new type of plastic-cased lock, including
[0008] The lock housing has a three-way structure, which is divided into a lock mounting port for the lock cylinder assembly to be embedded, a first side port on both sides, and a second side port.
[0009] A lock cylinder assembly is installed on the lock mounting port, and the lock cylinder assembly includes a lock pin;
[0010] The locking ring has connectors and pins at both ends. The connectors are fixedly installed on the first side port, and the pins are inserted into the second side port.
[0011] The lock housing is characterized by the following features: a partition plate is installed inside the lock housing, the partition plate has a through hole for the lock pin to pass through, a side opening communicating with the first side opening is formed between the partition plate and the lock mounting opening, the connector is machined with a lock plate extending to the partition plate, the lock plate has a lock plate opening for the lock pin to pass through, a lower insertion opening is formed between the partition plate and the second side opening, the pin is inserted into the lower insertion opening, the pin has a pin locking opening, and when the lock cylinder assembly is in the locked state, the lock pin is inserted into the pin locking opening.
[0012] As can be seen from the above scheme, the two ends of the lock connecting ring are connected to the connector and the pin. When the lock is in the locked state, the lock pin is located on the lock plate, the lock through hole and the lower insertion hole. At this time, when the lock connecting ring is pulled, the connector and the pin are in contact with the lock pin and bear the force, while the lock through hole of the partition in the middle position is basically not under force. Through the structure of the upper and lower two forces sharing, the lock body can be made of plastic material. When the lock cylinder assembly is in the open state, the lock pin is away from the lower insertion hole. At this time, the pin can be pulled out to open the second side opening, and the lock pin is located at the lock plate, the lock plate, and the lock through hole.
[0013] Preferably, the lock housing is made of plastic.
[0014] The above solutions demonstrate that they reduce costs and weight, aligning with current societal development trends. Furthermore, the plastic casing is aesthetically pleasing, versatile, and easy to process, perfectly meeting the national requirements for energy conservation and emission reduction.
[0015] Preferably, the diameter of the lock through hole is greater than or equal to the lock plate opening and the lower insertion port.
[0016] As can be seen from the above scheme, the purpose of this structure is to further reduce the stress on the partition and further improve its service life.
[0017] Preferably, the partition plate has an inner groove facing the lock mounting opening, and the end of the lock plate is machined with a claw facing the inner groove.
[0018] As can be seen from the above scheme, the purpose is to allow the joint to have a certain degree of movement to prevent jamming and to cooperate with the above-mentioned force application.
[0019] Preferably, the connector and / or pins are connected to the locking ring end by fasteners, welding, or snap-fit.
[0020] As can be seen from the above solution, it makes the connection between the connector and / or pin and the locking ring more convenient.
[0021] In summary, the beneficial effects of this utility model are as follows:
[0022] This utility model discloses a novel plastic-cased lock. The lock shell of this design can be made of plastic material. The main advantage is that the plastic shell is almost stress-free, allowing the lock shell to be replaced with a plastic component, thus reducing costs and weight, aligning with current societal development trends. Furthermore, the plastic shell is aesthetically pleasing, versatile, and easy to process, perfectly meeting the national requirements for energy conservation and emission reduction. Attached Figure Description
[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0024] Figure 1 This is a schematic diagram of the overall structure of a novel plastic shell lock according to this utility model;
[0025] Figure 2 This is a schematic diagram of the planar structure of a novel plastic shell lock according to the present invention;
[0026] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure in the middle BB direction;
[0027] Figure 4 A structural diagram of the lock housing, lock assembly, connector, and pins;
[0028] Figure 5 for Figure 4 Schematic diagram of the cross-sectional structure along the AA direction;
[0029] Figure 6 This is a schematic diagram of the connector structure;
[0030] Figure 7 This is a schematic diagram of the pin structure;
[0031] Figure 8 This is a schematic diagram of the lock housing structure;
[0032] Figure 9 for Figure 8 Schematic diagram of the cross-sectional structure in the CC direction;
[0033] Figure 10 This utility model Figure 5 A magnified schematic diagram of the local structure at point I. Detailed Implementation
[0034] The following will refer to the appendix in the embodiments of this utility model. Figures 1-10 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. Example
[0035] like Figures 1 to 10As shown, this embodiment discloses a novel plastic shell lock, including...
[0036] Lock housing 100, reference Figure 8 and 10 The lock housing 100 has a three-way structure, which is divided into a lock mounting port 1001 for the lock cylinder assembly to be embedded, a first side port 1002 and a second side port 1003 on both sides.
[0037] Lock cylinder assembly, reference Figure 3 The lock cylinder assembly is installed on the lock mounting port 1001. The lock cylinder assembly includes a lock pin 1012 and a lock cylinder 1011. If the lock cylinder assembly operates in the prior art, it will not be described.
[0038] Locking ring 1003, reference Figures 1-3 It has a connector 104 and a pin 102 connected to both ends. The connector 104 is fixedly installed in the first side port 1002, and the pin 102 is inserted into the second side port 1003. That is, the pin 102 can be inserted and removed by unlocking or locking the lock cylinder.
[0039] A partition 105 is installed inside the lock housing 100, for reference. Figure 9 The partition 105 has a lock through hole 1051 for the lock pin to pass through. A side through hole 1004 communicating with the first side opening 1002 is formed between the partition 105 and the lock mounting opening 1001. The connector 104 is machined with a lock plate 1042 extending to the partition. A lock plate opening 1044 for the lock pin to pass through is formed on the lock plate 1042. A lower insertion opening 1005 is formed between the partition 105 and the second side opening 1003. The pin 102 is inserted into the lower insertion opening. The pin has a pin locking opening 1021. When the lock cylinder assembly is in the locked state, the lock pin 1012 is inserted into the pin locking opening 1021.
[0040] When the lock cylinder assembly is in operation and in the locked state, the lower section of the locking pin 1012 is located on the lock plate lock opening 1044, the lock through hole 1051, and the pin lock opening 1021. When the lock connecting ring 103 is pulled, the joint 104 and the pin 102 are pulled and contact the outer end face of the locking pin 1012. That is, the force-bearing parts are mainly the joint, the pin, and the locking pin, forming an upper and lower force-bearing structure. The lock through hole of the partition in the middle position is basically not subjected to force. Through the upper and lower two force-bearing structures, the lock body can be made of plastic material.
[0041] When the lock cylinder assembly is in the open position, the locking pin is away from the lower insertion port 1005. At this time, the insertion pin 102 can be pulled out to open the second side port, and the locking pin is positioned at the lock plate lock port and lock through hole. (Reference) Figure 3 A schematic diagram of the internal state when the device is in the unlocked state.
[0042] By modifying the structure as described above, the lock shell is made of plastic, thereby reducing costs and weight, which aligns with current social development trends. At the same time, the plastic shell is aesthetically pleasing, versatile, and easy to process, perfectly meeting the national requirements for energy conservation and emission reduction.
[0043] To further reduce the stress on the partition and improve its service life, the diameter of the lock through hole 1051 is greater than or equal to the lock plate lock opening 1044 and the lower insertion opening 1021.
[0044] When the diameter of the locking through hole 1051 is larger than that of the locking plate opening 1044 and the lower insertion opening 1021, the peripheral wall of the locking through hole 1051 will not be subjected to force. When the diameter of the locking through hole 1051 is equal to that of the locking plate opening 1044 and the lower insertion opening 1021, the peripheral wall of the locking through hole 1051 will bear part of the force, but the main force-bearing parts are still the connector, the pin and the locking pin.
[0045] refer to Figure 5 , Figure 6 , Figure 9 , Figure 10 The partition 105 has an inner groove 1052 facing the lock mounting opening, and the end of the lock plate is machined with a claw 1043 facing the inner groove. The purpose is to allow the joint to have a certain amount of movement to prevent jamming and to cooperate with the above-mentioned force bearing.
[0046] The connector 104 and / or pin 102 are connected to the end of the locking ring by fasteners, welding, or snap-fit.
[0047] This solution uses fastener connections, see reference. Figure 6 and 7 All are equipped with threaded mounting holes, which makes it easier to connect the connector and / or pin to the locking ring.
[0048] The implementation method of this embodiment is further explained as follows: In the locked state, the locking pin 1012 on the lock cylinder 1011 or the locking gate connected to the lock cylinder passes through the connector 104 and the pin 102, and also passes through the partition 105 of the plastic shell 100 between the connector 104 and the pin 102. It should be noted that this partition is a key factor in realizing the plastic shell structure.
[0049] The partition 105 on the plastic shell is located between the connector 104 and the pin 102. It serves to separate the two parts and guide the locking pin 1012 on the lock cylinder, thereby strengthening the pull force of the lock. Using this structure, the pull force of the lock can fully comply with the national standard for bicycle locks.
[0050] The connector 104 and the pin 104 are each securely fixed to the locking ring 1003 (which may be a steel cable, steel wire, chain, or rope).
[0051] When connector 104 and pin 102 are pulled by an external force, the locking pin 1012 or locking gate on the lock cylinder is simultaneously subjected to the tension of connector 104 and pin 102. The plastic shell 100 is almost unaffected by the force. This structure allows the lock shell to be replaced with a plastic part, thereby reducing costs and weight, which aligns with current social development trends. At the same time, the plastic shell is aesthetically pleasing, versatile, and easy to process, perfectly meeting the national requirements for energy conservation and emission reduction.
[0052] After the lock is opened, the lock cylinder 1012 moves outward under the action of the spring or external force, causing the locking pin 1012 on the lock cylinder or the locking gate connected to the lock cylinder to also move outward. In this way, the locking pin or locking gate on the lock cylinder 1011 is disengaged from the pin 102, and the pin can be taken out from the plastic shell, and the lock is opened.
[0053] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A novel plastic-cased lock, comprising: The lock housing has a three-way structure, which is divided into a lock mounting port for the lock cylinder assembly to be embedded, a first side port on both sides, and a second side port. A lock cylinder assembly is installed on the lock mounting port, and the lock cylinder assembly includes a lock pin; The locking ring has connectors and pins at both ends. The connectors are fixedly installed on the first side port, and the pins are inserted into the second side port. Its features are: A partition is installed inside the lock housing. The partition has a through hole for the lock pin to pass through. A side opening communicating with the first side opening is formed between the partition and the lock mounting opening. The connector is machined with a lock plate extending to the partition. The lock plate has a lock plate slot for the lock pin to pass through. A lower insertion port is formed between the partition and the second side opening. The pin is inserted into the lower insertion port. The pin has a pin locking slot. When the lock cylinder assembly is in the locked state, the lock pin is inserted into the pin locking slot.
2. The novel plastic shell lock according to claim 1, characterized in that: The lock housing is made of plastic.
3. The novel plastic shell lock according to claim 2, characterized in that: The diameter of the lock through hole is greater than or equal to the lock plate lock opening and the lower insertion opening.
4. The novel plastic shell lock according to claim 3, characterized in that: The partition plate has an inner groove facing the lock mounting opening, and the end of the lock plate is machined with a claw facing the inner groove.
5. A novel plastic shell lock according to any one of claims 1 to 4, characterized in that: The connector and / or pins are connected to the locking ring end by fasteners, welding, or snap-fit.