Mechanical lock mechanism with locking arm formed by bending
Through the bending and forming design of the locking arm and the optimization of the connecting shaft, the problem of insufficient tightness between the locking arm and the torsion spring in traditional mechanical locks is solved, the stability and smoothness of the mechanical lock are improved, and the failure rate and cost are reduced.
Patent Information
- Application Number
- CN202422769163.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-14
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2034-11-14
AI Technical Summary
The connection between the locking arm and the torsion spring of traditional automotive mechanical locks is reduced, resulting in mechanical locks that are prone to failure and high cost.
The locking arm adopts a bent-molding design, with a protrusion directly formed on the locking arm to fix the torsion spring, and the movable arm is connected through a connecting shaft to achieve a direct connection between the torsion spring and the locking arm. Combined with the protective structure of the limit slot and the outer cover, the component linkage and installation process of the mechanical lock are optimized.
The invention improves the connection tightness of the torsion spring and the locking arm, reduces the failure rate of the mechanical lock, increases the smoothness and stability of the mechanical lock, reduces the cost investment, and improves the installation efficiency and service life.
Smart Images
Figure CN223374230U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of mechanical locks, in particular to a mechanical lock mechanism with a locking arm formed by bending. Background Art
[0002] Automobile mechanical locks are locks used in automobiles. Traditional mechanical locks generally use three parts, namely locking arms, torsion springs and rivet shafts, to realize the working linkage of the locking arms in structural design, so as to ensure the normal start and reset of the locking arms. This adds a connection step between the locking arm and the torsion spring, and the closeness of the connection between the locking arm and the torsion spring is reduced, resulting in the working activities between the locking arm and related components being difficult to control during operation, making the mechanical lock prone to failure and increasing cost investment.
[0003] In view of the above problems, the present invention makes improvements. Summary of the Invention
[0004] The utility model provides a mechanical lock mechanism with a locking arm formed by bending, which solves the above-mentioned problems existing in the use process of the prior art.
[0005] The technical solution of the present utility model is achieved as follows: a mechanical lock mechanism with a bent locking arm comprises a shell, a locking arm movably installed inside the shell, a mounting shaft 2 is fixedly installed at one end of the inner side of the shell, and movable arms 1 and 2 distributed front and back are movably installed on the surface of the mounting shaft 2, a mounting shaft 1 is fixedly installed at one end of the inner side of the shell, a clamping arm is movably installed on the surface of the mounting shaft 1, an adapter pin is inserted into one side of the clamping arm, a connecting pin is inserted into the front end of the mounting shaft 2, a torsion spring is sleeved on one side of the locking arm, one end of the torsion spring is inserted into the connecting pin, and the other end of the torsion spring is clamped on the locking arm.
[0006] The mechanical lock mechanism for bending and forming the locking arm of the utility model is further characterized in that: a movable arm three is movably mounted on the surface of the connecting pin, and a connecting shaft is inserted between the movable arm one, the movable arm two and the movable arm three.
[0007] The mechanical lock mechanism for bending and forming the locking arm as described above in the present invention further comprises: a protrusion is fixedly connected to the bottom end of the locking arm, a protective cover is sleeved on the surface of the protrusion, and a limiting groove adapted to the protrusion is provided at the bottom inner side of the shell.
[0008] The mechanical lock mechanism for the bent locking arm of the present invention is further characterized in that: an outer cover is clamped on the outer side of the shell, a fixing pin is inserted on the outer side of the outer cover, and the outer cover is fixedly mounted on the shell through the fixing pin.
[0009] The mechanical lock mechanism for the bent locking arm of the present invention is further characterized in that: a slot is provided at one end of the outer side of the shell, a latch is inserted into the slot, and one end of the latch is fixedly connected to the outer cover.
[0010] The mechanical lock mechanism for bending and forming the locking arm as described above in the present invention further comprises: a movable cavity 1 is opened on one side of the latch, a movable cavity 2 is opened on one side of the inner cavity of the movable cavity 1, and a clamping block is slidably installed in the inner cavities of the movable cavity 1 and the movable cavity 2, one end of the clamping block is fixedly connected to a spring, and the end of the spring away from the clamping block is fixedly connected to the inner wall of the movable cavity 2.
[0011] The mechanical lock mechanism for the bent locking arm of the present invention is further characterized in that: a snap ring matching the clamping block is sleeved on the surface of the latch, and the snap ring is fixedly mounted on the inner wall of the slot.
[0012] In summary, the beneficial effects of the present invention are:
[0013] 1. The utility model adopts a double-associated structure design in which the torsion spring and the locking arm are directly connected. A protrusion is directly bent and formed on the locking arm to fix the torsion spring, thereby realizing a direct connection between the torsion spring and the locking arm, improving the tightness of the connection between the torsion spring and the locking arm, making the locking arm and torsion spring and other components easier to control, improving the smoothness and stability of the mechanical lock, reducing the failure rate of the mechanical lock, reducing cost investment, and providing convenience for users' work.
[0014] 2. The utility model sets a connecting shaft, which is used to connect the movable arm 1, the movable arm 2 and the movable arm 3 in series, so as to realize the normal linkage work of each component, ensure the normal operation of the mechanical lock, reduce the situation where the mechanical lock is stuck and does not work, and provide convenience for the user's work.
[0015] 3. The utility model provides a locking arm and a limiting groove. When the mechanical lock is working normally, the protrusion on the locking arm also moves synchronously and moves synchronously in the limiting groove. In this way, the limiting groove can limit the locking arm, improve the flexibility of closing and opening the mechanical lock, and provide convenience for the user's work.
[0016] 4. The utility model is provided with an outer cover and a fixing pin. The outer cover is fixed to the shell in a partially wrapped manner, and then fixed to the shell in series through the fixing pin. This can protect the shell and its internal parts, provide convenience for the user's work and use, and extend the service life of the mechanical lock.
[0017] 5. The utility model provides a slot for inserting the pin on the shell through the arrangement of the movable cavity 1, the movable cavity 2, the card block, the spring and the slot. When installing the outer cover, the pin is aligned with the slot and inserted until the sound of the card block being stuck in the snap ring is heard, and the positioning of the outer cover during installation is completed. In this way, the user can quickly insert the fixing pin into the shell and the outer cover in the subsequent installation to achieve the installation and fixation of the outer cover, thereby improving the efficiency of the outer cover installation and providing convenience for the user's work. Specifically, when the outer cover is installed, the pin will be inserted into the slot and pass through the snap ring. During this period, the card block will be squeezed by the snap ring and slide into the movable cavity 1 and the movable cavity 2, while compressing the spring. When the card block completely enters the inner cavity of the snap ring, it will be partially moved out of the inner cavity of the movable cavity 1 under the action of the spring and finally stuck on the inner side of the snap ring to achieve the positioning of the outer cover. It should be noted that inclined surfaces should be provided on both sides of the card block or both sides inside the snap ring so that the card block can be flexibly and smoothly moved out of the snap ring, thereby providing convenience for the user's disassembly work.
[0018] 6. The utility model is provided with a snap ring, which is fixed on the inner wall of the slot and is also adapted to the latch and the card block. When in use, the end of the latch passes through the snap ring until the card block is stuck into the inner side of the snap ring, so that the outer cover can be positioned during installation, providing convenience for the user's subsequent installation of the outer cover. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.
[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0021] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention;
[0022] Figure 3 Schematic diagram of the three-dimensional structure of the outer cover;
[0023] Figure 4 Schematic diagram of the three-dimensional structure of the latch;
[0024] Figure 5 This is a schematic diagram of the partial three-dimensional structure of the present invention;
[0025] Figure 6 Schematic diagram of the three-dimensional structure of the shell.
[0026] In the figure: 1. Shell, 2. Mounting shaft 1, 3. Clamping arm, 4. Adapter pin, 5. Mounting shaft 2, 6. Movable arm 1, 7. Movable arm 2, 8. Movable arm 3, 9. Connecting pin, 10. Locking arm, 11. Connecting shaft, 12. Torsion spring, 13. Limiting groove, 14. Outer cover, 15. Fixing pin, 16. Latch, 17. Snap ring, 18. Movable cavity 1, 19. Movable cavity 2, 20. Clamping block, 21. Spring, 22. Slot. DETAILED DESCRIPTION
[0027] The following is a combination of the appended examples of the present invention Figure 1-6 , clearly and completely describes the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention. Example
[0028] A mechanical lock mechanism in which a locking arm is bent and formed, comprises a shell 1, a locking arm 10 is movably installed inside the shell 1, a mounting shaft 2 5 is fixedly installed at one end of the inner side of the shell 1, and a movable arm 1 6 and a movable arm 2 7 distributed front and back are movably installed on the surface of the mounting shaft 2 5, a mounting shaft 2 is fixedly installed at one end of the inner side of the shell 1, a clamping arm 3 is movably installed on the surface of the mounting shaft 2, an adapter pin 4 is inserted at one side of the clamping arm 3, a connecting pin 9 is inserted at the front end of the mounting shaft 2 5, a torsion spring 12 is sleeved on one side of the locking arm 10, one end of the torsion spring 12 is inserted on the connecting pin 9, and the other end of the torsion spring 12 is clamped on the locking arm 10.
[0029] The specific usage process is as follows: when the mechanical lock is working, the card arm 3 first moves, and the card arm 3 drives the adapter pin 4 to move. The adapter pin 4 will push one end of the movable arm 2 7 to move, and the other end of the movable arm 2 7 will move upward, and then the movable arm 2 7 will drive the connecting shaft 11 to move. At the same time, the connecting shaft 11 will drive the movable arm 1 6 and the movable arm 3 8 to move, and the movement direction and movement trajectory of the movable arm 1 6 and the movable arm 3 8 are the same as those of the movable arm 2 7. The end of the movable arm 3 8 away from the connecting shaft 11 will drive the connecting pin 9 to move in the opposite direction. That is to say, if the current end of the movable arm 3 8 moves upward, then the other end moves downward. At the same time, the connecting pin 9 will also drive the corresponding end of the locking arm 10 to move downward, and at the same time, it will be locked with the locking arm 1 0 The end opposite to the current end will move upward, and at this time the locking arm 10 is swinging on the housing 1. The above is the movement process of the internal structure of the mechanical lock. Among them, the locking arm 10 will also squeeze the torsion spring 12 when it moves, or twist the torsion spring 12, so that the locking arm 10 can be reset under the action of the torsion spring 12 after the movement, then the installation shaft 1 2, the card arm 3, the adapter pin 4, the installation shaft 2 5, the movable arm 1 6, the movable arm 2 7, the movable arm 3 8 and the connecting pin 9 will also be reset to ensure that the lock head is locked. After the mechanical lock is unlocked, the locking arm 10 can be quickly reset, which provides convenience for the user to use the mechanical lock next time. The above is the specific operation and working process of the mechanical lock. Other details are not described in detail in this article. For example, how is the mechanical lock installed in this solution? Among them, the lock head is inserted from the outside of the outer cover 14 and inserted into the inner side of the shell 1, and then the card arm 3 is hooked to the lock head to fix the lock head. It should be noted that according to different models, the components docking with the lock head are also different, that is, according to different mechanical lock models, the shape and installation position of the card arm 3 are also different. The specific ones are subject to actual conditions. It should be noted that the protrusion at the bottom of the locking arm 10 also follows the swinging movement. When the mechanical lock is working normally, the protrusion on the locking arm 10 also moves synchronously and is synchronously active in the limit groove 13. In this way, the limit groove 13 can limit the locking arm 10, thereby improving the mechanical lock. The flexibility of closing and opening provides convenience for users' work and use. The traditional locking arm 10 has no bending protrusion in structure, and in order to match the torsion spring 12, a rivet shaft needs to be added, which not only increases the cost investment, but also is difficult to control. Because this solution has upgraded and improved the locking arm 10, a protrusion is directly bent and formed on the locking arm 10 for installing and fixing the torsion spring 12, the use of a rivet shaft can be eliminated, the cost investment is reduced, and it is easy to control, which provides convenience for users' work and use. Among them, the connecting shaft 11 is used to connect the movable arm 1 6, the movable arm 2 7 and the movable arm 3 8 in series to realize the normal linkage work of each component, ensure the normal operation of the mechanical lock, reduce the situation where the mechanical lock is stuck and does not work, and provide convenience for users' work and use.
[0030] Therefore, a double-associated structure design is adopted in which the torsion spring and the locking arm are directly connected. A protrusion is directly bent and formed on the locking arm to fix the torsion spring, thereby realizing a direct connection between the torsion spring and the locking arm, improving the tightness of the connection between the torsion spring and the locking arm, making the locking arm and torsion spring and other components easier to control, improving the smoothness and stability of the mechanical lock in operation, reducing the failure rate of the mechanical lock, reducing cost investment, and providing convenience for users' work.
[0031] A movable arm 3 8 is movably mounted on the surface of the connecting pin 9 , and a connecting shaft 11 is inserted between the movable arm 1 6 , the movable arm 2 7 and the movable arm 3 8 .
[0032] Specifically, the setting of the connecting shaft 11 is used to connect the movable arm 1 6, the movable arm 2 7 and the movable arm 3 8 in series, so as to realize the normal linkage operation of each component, ensure the normal operation of the mechanical lock, reduce the situation where the mechanical lock is stuck and does not work, and provide convenience for the user's work.
[0033] A protrusion is fixedly connected to the bottom end of the locking arm 10 , and a protective cover is sleeved on the surface of the protrusion. A limiting groove 13 adapted to the protrusion is formed at the bottom inner side of the housing 1 .
[0034] Specifically, the locking arm 10 and the limiting groove 13 are arranged so that when the mechanical lock is working normally, the protrusion on the locking arm 10 also moves synchronously and moves synchronously in the limiting groove 13. In this way, the limiting groove 13 can limit the locking arm 10, thereby improving the flexibility of closing and opening the mechanical lock and providing convenience for the user's work.
[0035] An outer cover 14 is clamped on the outer side of the housing 1 , and a fixing pin 15 is inserted into the outer side of the outer cover 14 . The outer cover 14 is fixedly mounted on the housing 1 via the fixing pin 15 .
[0036] Specifically, the outer cover 14 and the fixing pin 15 are arranged such that the outer cover 14 is fixed to the housing 1 in a partially wrapped manner, and then is fixed to the housing 1 in series through the fixing pin 15. This can protect the housing 1 and its internal parts, provide convenience for the user's work, and extend the service life of the mechanical lock.
[0037] A slot 22 is provided at one end of the outer side of the shell 1, and a latch 16 is inserted into the inside of the slot 22. One end of the latch 16 is fixedly connected to the outer cover 14. An active cavity 18 is provided on one side of the latch 16, and an active cavity 2 19 is provided on one side of the inner cavity of the active cavity 18. A card block 20 is slidably installed in the inner cavities of the active cavity 18 and the active cavity 2 19. One end of the card block 20 is fixedly connected to a spring 21, and the end of the spring 21 away from the card block 20 is fixedly connected to the inner wall of the active cavity 2 19.
[0038] Specifically, the arrangement of the movable cavity 18, the movable cavity 2 19, the card block 20, the spring 21 and the slot 22, the housing 1 is provided with a slot 22 for inserting the pin 16, when installing the outer cover 14, the pin 16 is aligned with the slot 22 and inserted until the sound of the card block 20 being stuck in the snap ring 17 is heard, and the positioning of the outer cover 14 during installation is completed, so that the user can quickly insert the fixing pin 15 into the housing 1 and the outer cover 14 during subsequent installation to achieve the installation and fixation of the outer cover 14, improve the efficiency of the installation of the outer cover 14, and provide convenience for the user's work and use. Specifically, when the outer cover 14 is installed, the plug 16 is aligned with the slot 22 and inserted until the sound of the card block 20 being stuck in the snap ring 17 is heard, and the positioning of the outer cover 14 during installation is completed. The pin 16 will be inserted into the slot 22 and will also pass through the retaining ring 17. During this period, the block 20 will be squeezed by the retaining ring 17 and will slide into the active cavity 18 and the active cavity 2 19, while compressing the spring 21. When the block 20 completely enters the inner cavity of the retaining ring 17, a part of it will move out of the inner cavity of the active cavity 18 under the action of the spring 21 and finally get stuck on the inner side of the retaining ring 17, thereby realizing the positioning of the outer cover 14. It should be noted that inclined surfaces should be set on both sides of the block 20 or both sides inside the retaining ring 17, so that the block 20 can be flexibly and smoothly moved out of the retaining ring 17, providing convenience for the user's disassembly work.
[0039] A snap ring 17 that matches the clamping block 20 is sleeved on the surface of the latch 16 , and the snap ring 17 is fixedly mounted on the inner wall of the slot 22 .
[0040] Specifically, the setting of the snap ring 17 is that the snap ring 17 is fixed on the inner wall of the slot 22, and the snap ring 17 is also adapted to the pin 16 and the block 20 at the same time. When in use, the end of the pin 16 passes through the snap ring 17 until the block 20 is snapped into the inner side of the snap ring 17, so that the positioning of the outer cover 14 during installation can be achieved, which provides convenience for the user's subsequent installation work of the outer cover 14.
[0041] It should be noted that the functions to be implemented by each hardware in the present invention are supported by a large number of mature technologies and belong to the existing technology. The essence of the present invention lies in optimizing the combination of existing hardware and its connection methods for specific application scenarios to meet the adaptation needs in specific application scenarios and solve the problems raised in the background technology (not involving improvements to the software inside the hardware).
[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A mechanical lock mechanism with a locking arm bent and formed, comprising a housing (1), characterized in that: A locking arm (10) is movably mounted inside the shell (1), a mounting shaft 2 (5) is fixedly mounted on one end of the inner side of the shell (1), and a movable arm 1 (6) and a movable arm 2 (7) are movably mounted on the surface of the mounting shaft 2 (5) and are distributed front and rear. A mounting shaft 1 (2) is fixedly mounted on one end of the inner side of the shell (1), and a clamping arm (3) is movably mounted on the surface of the mounting shaft 1 (2), an adapter pin (4) is plugged into one side of the clamping arm (3), a connecting pin (9) is plugged into the front end of the mounting shaft 2 (5), a torsion spring (12) is sleeved on one side of the locking arm (10), one end of the torsion spring (12) is plugged into the connecting pin (9), and the other end of the torsion spring (12) is clamped into the locking arm (10).
2. The mechanical lock mechanism with a bent locking arm according to claim 1, characterized in that: A movable arm three (8) is movably mounted on the surface of the connecting pin (9), and a connecting shaft (11) is inserted between the movable arm one (6), the movable arm two (7) and the movable arm three (8).
3. The mechanical lock mechanism with a bent locking arm according to claim 2, characterized in that: The bottom end of the locking arm (10) is fixedly connected to a protrusion, the surface of the protrusion is sleeved with a protective sleeve, and the bottom of the inner side of the housing (1) is provided with a limiting groove (13) adapted to the protrusion.
4. The mechanical lock mechanism with a bent locking arm according to claim 3, characterized in that: An outer cover (14) is clamped on the outer side of the shell (1), a fixing pin (15) is inserted on the outer side of the outer cover (14), and the outer cover (14) is fixedly mounted on the shell (1) via the fixing pin (15).
5. The mechanical lock mechanism with a bent locking arm according to claim 4, characterized in that: A slot (22) is provided at one end of the outer side of the housing (1), a latch (16) is inserted into the interior of the slot (22), and one end of the latch (16) is fixedly connected to the outer cover (14).
6. The mechanical lock mechanism with a bent locking arm according to claim 5, characterized in that: A movable cavity 1 (18) is provided on one side of the latch (16), and a movable cavity 2 (19) is provided on one side of the inner cavity of the movable cavity 1 (18). A clamping block (20) is slidably mounted in the inner cavities of the movable cavity 1 (18) and the movable cavity 2 (19), and one end of the clamping block (20) is fixedly connected to a spring (21), and the end of the spring (21) away from the clamping block (20) is fixedly connected to the inner wall of the movable cavity 2 (19).
7. The mechanical lock mechanism with a bent locking arm according to claim 6, characterized in that: A snap ring (17) that matches the clamping block (20) is sleeved on the surface of the latch (16), and the snap ring (17) is fixedly mounted on the inner wall of the slot (22).