A lock cylinder

Abstract

The utility model discloses a lock head, including fixed seat, movable seat, stop piece and two elastic reset element, the elastic reset element assembly is between fixed seat and movable seat, movable seat sliding installation is in the fixed seat inside, the stop piece assembly is in the fixed seat inside for limiting the displacement of movable seat, first guide boss and the groove wall interval of first inner recess form one for limiting the first trajectory groove of stop piece movement direction, second guide boss and the groove wall interval of second inner recess form one for limiting the second trajectory groove of stop piece movement direction, movable seat is equipped with a group of symmetrical distribution's limit pawl, and limit pawl and movable pawl are integral structure, and the side of limit pawl far away from movable seat connecting end is free end, to constitute a press lock catch, can realize opening and closing through simple press action, and the use convenience of product is improved greatly.

Description

Technical Field

[0001] This utility model relates to the field of lock technology, specifically to a lock. Background Technology

[0002] In many aspects of daily life, latches serve as a crucial connection and fastening device, widely used in various products to ensure the stability and security of their closed state. As frequently used daily necessities, such as eyeglass cases, medicine boxes, and trash cans, the performance of their latch structures directly affects the user experience and the practicality of the products. Currently, there are various types of latch structures on the market, such as magnetic, snap-on, and flip-top types. However, with the use of magnetic latches, the magnetism of the magnet may gradually weaken, affecting the reliability of the latch. Snap-on latches require the user to forcefully pry open the latch with their fingers, which is not very convenient. Flip-top latches usually have small locking mechanisms, requiring precise alignment of the protrusions and grooves, making them relatively difficult to use. Utility Model Content

[0003] In order to overcome the shortcomings of existing technical solutions, this utility model provides a lock head that can effectively solve the technical problems mentioned in the background art.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a lock head, including a fixed seat, a movable seat, a limiting member and two elastic reset elements. The elastic reset elements are assembled between the fixed seat and the movable seat. The movable seat is slidably installed inside the fixed seat. The limiting member is assembled inside the fixed seat to limit the displacement of the movable seat. The movable seat is provided with a set of symmetrically distributed limiting claws. The limiting claws and the movable seat are an integral structure, and the side of the limiting claw away from the end connected to the movable seat is the free end.

[0005] Furthermore, the fixed seat is provided with at least one guide groove, and the movable seat is provided with a guide block that slides in cooperation with the guide groove.

[0006] Furthermore, a first inner groove is provided on one side of the movable seat, and a first guide protrusion is provided in the first inner groove. The first guide protrusion and the groove wall of the first inner groove are spaced apart to form a first trajectory groove for limiting the movement direction of the limiting member.

[0007] Furthermore, the first guide protrusion is provided with a locking slope, a first guide slope and a second guide slope, and the locking slope has an arc-shaped recess.

[0008] Furthermore, a second inner groove is provided on the other side of the movable seat, and a second guide protrusion is provided in the second inner groove. The second guide protrusion and the groove wall of the second inner groove are spaced apart to form a second trajectory groove for limiting the movement direction of the limiting member.

[0009] Furthermore, the bottom of the limiting member is rotatably connected to the fixed base, and one end of the top of the limiting member is located in the first track groove, while the other end is located in the second track groove.

[0010] Furthermore, the fixed base is provided with at least one limiting block, and the fixed base is provided with a hollow groove corresponding to the number of limiting blocks, so that the limiting blocks can rotate relative to the fixed base.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. By setting a fixed seat, a movable seat, an elastic reset element, and a limiting element, the elastic reset element is assembled between the fixed seat and the movable seat, and the limiting element is assembled inside the fixed seat to limit the displacement of the movable seat. The limiting claw and the movable seat are an integral structure, and the side of the limiting claw away from the end connected to the movable seat is a free end, thus forming a push-lock. It can be opened and closed by a simple pressing action, which greatly improves the ease of use of the product. 2. Press the plug against the movable seat to make it slide down along the guide groove. The limiting claw descends synchronously with the movable seat. The limiting claw sinks down to be flush with the notch groove. The free end of the limiting claw is subjected to a vertical upward force, which causes elastic deformation. The limiting claw rotates inward around its connection point with the movable seat. The limiting claw closes and clamps the plug. The limiting claw is a sinking design, which achieves the effect of reducing the overall working height of the product. 3. Two elastic reset elements are set between the fixed seat and the movable seat, so that the movable seat is subjected to uniform force during the rising or falling process. This design can significantly improve the service life of the elastic reset elements and make the rising and falling of the movable seat more stable. Attached Figure Description

[0012] Figure 1 A schematic diagram of the structure with the limiting claw in the open state; Figure 2 This is a schematic diagram of the structure in the closed state of the limiting claw; Figure 3 This is an exploded view of the lock head from the left perspective. Figure 4 This is an exploded view of the lock cylinder from the right-hand perspective. Figure 5 This is a plan view of the lock from the left. Figure 6 This is a plan view of the lock from the right side. Figure 7 This is a structural schematic diagram of the limiting component; Figure 8 This is an exploded view of the lock and plug structure.

[0013] Numbering on the map: 1. Plug; 2. Limiting claw; 3. Movable seat; 4. Fixed seat; 5. Elastic reset element; 6. Hollowed-out groove; 7. Limiting block; 8. Limiting component; 9. Notch groove; 10. Guide block; 11. Mounting post; 12. Guide groove; 16. First guide protrusion; 17. Second guide protrusion; 18. Locking slope; 19. First guide slope; 20. Second guide slope; 21. First track groove; 22. Second track groove; 23. Pushing protrusion; 24. Angle limiting protrusion. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] like Figure 1-7 As shown, this utility model provides a lock head, including a fixed base 4, a movable base 3, a limiting member 8, and two elastic reset elements 5. The movable base 3 is provided with a set of symmetrically distributed limiting claws 2. The limiting claws 2 and the movable base are an integral structure. The side of the limiting claw 2 away from the end connected to the movable base 3 is a free end. The fixed base 4 is provided with a notch 9 so that the limiting claw 2 is placed on the notch 9 when it is in the open state. The movable base 3 is slidably installed inside the fixed base 4. The limiting member 8 is assembled inside the fixed base 4 to limit the displacement of the movable base 3. The elastic reset element 5 is a spring. The elastic reset element 5 is assembled between the fixed base 4 and the movable base 3. Specifically, the fixed base 4 has a mounting post 11 for assembling the spring inside, and the bottom of the movable base 3 has a cavity for accommodating the spring. The fixed seat 4 is provided with at least one guide groove 12, and the movable seat 3 is provided with a guide block 10 that slides with the guide groove 12. One side of the movable seat 3 is provided with a first inner groove, and a first guide protrusion 16 is provided in the first inner groove. The first guide protrusion 16 and the groove wall of the first inner groove are spaced apart to form a first trajectory groove 21 for limiting the movement direction of the limiting member 8. The first guide protrusion 16 is provided with a locking slope 18, a first guide slope 19 and a second guide slope 20. The locking slope 18 has an arc-shaped depression. The other side of the movable seat 3 is provided with a second inner groove, and a second guide protrusion 17 is provided in the second inner groove. The second guide protrusion 17 and the groove wall of the second inner groove are spaced apart to form a second trajectory groove 22 for limiting the movement direction of the limiting member 8. The bottom of the limiting member 8 is rotatably connected to the fixed seat 4, and one end of the top of the limiting member 8 is located in the first trajectory groove 21 and the other end is located in the second trajectory groove 22. like Figure 8 As shown, the fixing base 4 is provided with at least one limiting block 7, and the fixing base 4 is provided with a hollow groove 6 corresponding to the number of limiting blocks 7, so that the limiting blocks 7 can rotate relative to the fixing base 4. Taking eyeglass cases, medicine boxes and trash cans as examples, the box body is provided with a limiting slot. When the fixing base 4 is assembled on the box body, the limiting blocks 7 are squeezed and deflected. After reaching the locking position, the limiting blocks 7 elastically reset and insert into the limiting slot to achieve a tight connection with the box body. The plug 1 is connected to the box cover by bolts or other locking methods. Working principle: When the lid is closed, the plug 1 presses the movable seat 3 to slide downward along the guide groove 12, the spring is compressed, and the free end of the limiting claw 2 is subjected to a vertically upward force, resulting in elastic deformation. The limiting claw 2 rotates inward around its connection point with the movable seat 3, and the limiting claw 2 closes and clamps the plug 1. like Figure 6 As shown, the second track groove 22 has a pushing protrusion 23 on the left and an angle limiting protrusion 24 on the right. Therefore, during the descent of the movable seat 3, the pushing protrusion 23 will push the limiting member 8 to swing towards the angle limiting protrusion 24. The limiting member 8 contacts the angle limiting protrusion 24 to ensure that the limiting member 8 slides on the correct track. One end of the limiting member 8 slides along the second guide slope 20, and the other end slides along the slope on the right side of the second guide protrusion 17, so that the limiting member 8 swings counterclockwise. When the movable seat 3 completes one descent action, the limiting member 8 slides into the arc groove of the locking slope 18, and the movable seat 3 can no longer move, maintaining the clamping action of the limiting claw 2. Press the movable seat 3 again, as shown Figure 5As shown, the limiting member 8 swings away from the arc groove. When the limiting member 8 completely leaves the first guide protrusion 16, the spring is released and pushes the movable seat 3 to rise. The limiting member 8 slides along the first guide slope 19 and returns to the initial position.

[0016] Compared to traditional technologies: 1. By setting a fixed base 4, a movable base 3, an elastic reset element 5, and a limiting element 8, the elastic reset element 5 is assembled between the fixed base 4 and the movable base 3, and the limiting element 8 is assembled inside the fixed base 4 to limit the displacement of the movable base 3. The limiting claw 2 and the movable base are an integral structure, and the side of the limiting claw 2 away from the end connected to the movable base 3 is a free end, thus forming a push-lock. It can be opened and closed by a simple pressing action, which greatly improves the ease of use of the product. 2. The plug 1 presses the movable seat 3 to slide downward along the guide groove 12. The limiting claw 2 descends synchronously with the movable seat 3. The limiting claw 2 sinks down to be flush with the notch groove 9. The free end of the limiting claw 2 is subjected to a vertically upward force, which causes elastic deformation. The limiting claw 2 rotates inward around its connection point with the movable seat 3. The limiting claw 2 closes and clamps the plug 1. The limiting claw 2 is a sinking design, which achieves the effect of reducing the overall working height of the product. 3. Two elastic reset elements 5 are set between the fixed seat 4 and the movable seat 3, so that the movable seat 3 is subjected to uniform force during the rising or falling process. This design can greatly improve the service life of the elastic reset elements 5 and make the rising and falling of the movable seat 3 more stable.

[0017] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A lock cylinder, characterized in that, It includes a fixed base, a movable base, a limiting component, and two elastic reset elements. The elastic reset elements are assembled between the fixed base and the movable base. The movable base is slidably installed inside the fixed base. The limiting component is assembled inside the fixed base to limit the displacement of the movable base. The movable seat is provided with a set of symmetrically distributed limiting claws. The limiting claws and the movable seat are an integral structure, and the side of the limiting claw away from the end connected to the movable seat is the free end. The movable seat has a first inner groove on one side and a first guide protrusion in the first inner groove. The first guide protrusion and the groove wall of the first inner groove are spaced apart to form a first trajectory groove for limiting the movement direction of the limiting member. The first guide protrusion is provided with a locking slope, a first guide slope and a second guide slope, and the locking slope has an arc-shaped recess; The other side of the movable seat is provided with a second inner groove, and a second guide protrusion is provided in the second inner groove. The second guide protrusion and the groove wall of the second inner groove are spaced apart to form a second trajectory groove for limiting the movement direction of the limiting member.

2. A lock cylinder according to claim 1, characterized in that, The fixed seat is provided with at least one guide groove, and the movable seat is provided with a guide block that slides in cooperation with the guide groove.

3. A lock cylinder according to claim 1, characterized in that, The bottom of the limiting member is rotatably connected to the fixed base, and one end of the top of the limiting member is located in the first track groove, and the other end is located in the second track groove.

4. A lock cylinder according to claim 1, characterized in that, The fixed base is provided with at least one limiting block, and the fixed base is provided with a hollow groove corresponding to the number of limiting blocks, so that the limiting blocks can rotate relative to the fixed base.

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