Linkage unlocking hasp with long service life

Abstract

The utility model relates to a long-service-life linkage unlocking hasp which is designed for solving the technical problems that few existing similar products are combined with a pressing lock structure for use, meanwhile, the pressing resistance is unstable due to the poor structural design, and the pressing resistance is easily gradually increased after being repeatedly used for many times. The hasp comprises a pressing lock and a hasp assembly. The key point is that one end of a lock catch and one end of a swing rod of the hasp assembly are respectively arranged in the bracket through a first pin shaft and a second pin shaft, and the first pin shaft and the second pin shaft are respectively provided with a lock catch torsion spring and a swing rod torsion spring; the bottom of the pressing lock in the support extends out and is provided with a roller by pressing a shaft rod which moves up and down, the other end of the swing rod in the support is buckled with the other end of the lock catch, and meanwhile the roller abuts against the obliquely-tilted bent face at the other end of the swing rod. When the shaft rod of the pressing lock is pressed downwards under stress, the roller pushes the swing rod and the lock catch to be separated from a buckling state along the bending surface of the swing rod; the opening edge of the support and the U-shaped opening of the lock catch are staggered up and down to form a closed lock opening.

Description

Technical Field

[0001] The utility model relates to a hasp lock for doors and cabinets in industries such as engineering machinery, industrial cabinets, and automated control manufacturing, and is a long-life linkage unlocking hasp. Background Art

[0002] A hasp lock is a lock that rotates the lock inside the shell and locks it to the fixed buckle through impact. It is widely used in metal cabinet doors in industries such as telecommunications, electricity, and automation control manufacturing. There are many types of hasp locks on the market, the core of which is the hasp assembly; such as the application number 202320938035.4 disclosed in the Chinese patent literature, the authorization announcement date is 2023.11.10, and the utility model name is "long-life hasp"; there are some existing flat locks with push locks, such as the application number 202020617341.4 disclosed in the Chinese patent literature, the authorization announcement date is 2021.07.16, and the utility model name is "a flat push lock"; but the above locks are rarely used in combination with push locks, such as the ZL patent number 02282268.2 disclosed in the Chinese patent literature, the authorization announcement date is November 5, 2003, and the utility model name is "push lock". At the same time, similar products currently used in the industry generally achieve lock opening through sliding friction between multiple parts. The initial pressing resistance of the button is large. As the number of uses increases, the surface of the sliding part is damaged and roughened, and the pressing resistance will gradually increase. Summary of the invention

[0003] In order to overcome the above shortcomings, the purpose of the utility model is to provide a long-life linkage unlocking buckle in the art, so as to solve the technical problems that the existing similar products are rarely used in combination with the push lock structure, and the poor structural design leads to unstable push resistance, which tends to gradually increase after repeated use. The purpose is achieved through the following technical solutions.

[0004] A long-life linkage unlocking buckle, the buckle comprises a push lock and a buckle assembly; the key points of its structural design are that one end of the buckle and one end of the swing rod of the buckle assembly are respectively arranged in a bracket through a first pin shaft and a second pin shaft, the first pin shaft and the second pin shaft are respectively provided with a buckle torsion spring and a swing rod torsion spring, one end of the buckle torsion spring is connected to the buckle, the other end of the buckle torsion spring is connected to the inner wall of the bracket, one end of the swing rod torsion spring is connected to the swing rod, and the other end of the swing rod torsion spring is connected to the inner wall of the bracket; the bracket The shaft extending from the bottom of the inner push lock and moving up and down by pressing is provided with a roller. When the other end of the swing rod in the bracket is engaged with the other end of the lock buckle, the roller abuts against the obliquely tilted bending surface of the other end of the swing rod; when the shaft of the push lock is pressed down by force, the roller pushes the swing rod and the lock buckle out of the engagement state along the bending surface of the swing rod; the other end of the lock buckle is provided with a U-shaped opening, and the edge of one side of the bracket at the U-shaped opening is provided with an opening edge, and the opening edge of the bracket and the U-shaped opening of the lock buckle are staggered up and down to form a closed lock opening. Thus, the buckle is introduced through the opening edge of the bracket and then locked with the fixed buckle. At this time, the lock buckle rotates toward the inside of the bracket, and when the push lock is pressed down, the roller is driven to rotate the swing rod to unlock the lock buckle. At this time, the fixed buckle locked by the U-shaped opening at the lock buckle is pulled out, and the lock buckle rotates toward the outside of the bracket to unlock the fixed buckle. At the same time, the above-mentioned push lock is fixed to the bracket through an external thread and a nut. The cylindrical part extending from the top of the push lock serves as a pressing part, and a lock core assembly is provided in the cylindrical part. It is a specific push lock embodiment, and it can also adopt other existing push lock structures to meet the installation requirements of the above-mentioned bracket and roller.

[0005] The inner edge below the bending surface at the other end of the swing rod is provided with a buckle opening, and the U-shaped opening of the lock buckle is buckled with the buckle opening of the swing rod. The above is the specific position and specific embodiment of the buckle of the swing rod and the lock buckle, and it can also adopt a buckle mode such as a convex edge or a U-shaped opening.

[0006] The lock buckle is in a U shape, and a limit protrusion is provided on one side of the bracket. The above structure enables the lock buckle to play a limit role through the limit protrusion when rotating into the bracket.

[0007] The locking buckle's limiting protrusion is symmetrical with the other side edge protrusion extending out of the bracket's outer diameter, and the locking buckle's edge protrusion is triangular and forms a guide edge with one side of the lower bracket's opening edge. The above structure facilitates the fixing buckle to enter the bracket's opening edge through the guide edge.

[0008] A transition notch is provided between the bent surface of the swing rod and the buckle at one side where the swing rod and the buckle are buckled with each other, the transition notch of the swing rod is connected to the buckle, and a round chamfer is provided on the other side of the bent surface of the swing rod symmetrically. The above structure improves the stability of the swing rod and facilitates the buckling and separation of the swing rod and the buckle.

[0009] The bracket includes an upper bracket and a lower bracket, the opening edge is arranged in the middle of one side edge of the lower bracket, the upper bracket and the lower bracket are respectively raised in a "F" shape, the notch between the upper bracket and the lower bracket is connected by a countersunk screw and a lock nut, and a convex column and a groove for positioning and assembly are provided at the connection, or a stamping column and a bending column for positioning and assembly are provided at the edge of the connection. The above is a specific embodiment of the bracket structure, and the production cost is low.

[0010] The "X"-shaped protrusion of the upper bracket is arranged on the locking part on one side of the push lock, and the slot on the other side of the upper bracket is provided with a parallel shaft-mounting part, and the shaft-mounting part on one side of the slot is stamped and disconnected and connected to the lower bracket through a countersunk screw and a locking nut, and the first pin shaft, the second pin shaft and the corresponding lock buckle torsion spring and the swing arm torsion spring are arranged in the frame formed by the shaft-mounting part and the lower bracket. The above is a specific embodiment of the upper bracket structure, and the corresponding torsion spring and pin shaft are shorter in length, and the production cost is lower.

[0011] The utility model has reasonable structural design, is easy to use, assemble and produce, has low cost, long service life and good linkage effect, especially the pressing resistance remains stable after multiple uses; it is suitable for use as a long-life linkage unlocking buckle, as well as a structural improvement of similar products. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the explosion structure of an embodiment of the utility model.

[0013] Figure 2 yes Figure 1 Schematic diagram of the three-dimensional structure on the other side after assembly.

[0014] Figure 3 yes Figure 2 Schematic diagram of the internal structure when viewed from above, the lower bracket is omitted in the figure, the dotted line is the state after the lock and the rocker arm are rotated, and the arrow in the figure indicates the unlocking direction.

[0015] Figure 4 yes Figure 3 Schematic diagram of the structure when the lower bracket is installed, looking up, and the arrow in the figure indicates the unlocking direction.

[0016] Serial numbers and names of the accompanying drawings: 1. Push lock, 2. Upper bracket, 201. Locking part, 202. Shaft mounting part, 3. Countersunk screw, 4. Anti-loosening nut, 5. Lock torsion spring, 6. Lower bracket, 7. First pin shaft, 8. Lock, 801. U-shaped opening, 9. Rocker, 901. Bending surface, 902. Snap-fit ​​opening, 10. Second pin shaft, 11. Rocker torsion spring, 12. Roller. Implementation

[0017] Now, in conjunction with the accompanying drawings, the structure of the utility model is further described. Figure 1-Figure 4As shown, the buckle includes a push lock 1 and a buckle assembly, one end of the lock buckle 8 and one end of the swing rod 9 of the buckle assembly are respectively arranged in the bracket through the first pin shaft 7 and the second pin shaft 10, the first pin shaft and the second pin shaft are respectively provided with a lock buckle torsion spring 5 and a swing rod torsion spring 11, one end of the lock buckle torsion spring is connected with the lock buckle, and the other end of the lock buckle torsion spring is against the inner wall of the bracket, one end of the swing rod torsion spring is connected with the swing rod, and the other end of the swing rod torsion spring is against the inner wall of the bracket; the bottom of the push lock in the bracket extends out and A roller 12 is provided on the shaft rod that can be moved up and down by pressing, and while the other end of the rocker arm in the bracket is engaged with the other end of the lock buckle, the roller abuts against the obliquely tilted bending surface 901 of the other end of the rocker arm; when the shaft rod of the lock is pressed downward, the roller pushes the rocker arm and the lock buckle out of the engaged state along the bending surface of the rocker arm; a U-shaped opening 801 is provided on the other end of the lock buckle, and an opening edge is provided on one side edge of the bracket at the U-shaped opening, and the opening edge of the bracket and the U-shaped opening of the lock buckle are staggered up and down to form a closed lock opening.

[0018] The specific structure is as follows: a buckle opening 902 is provided on the inner edge below the bending surface of the other end of the above-mentioned swing rod, and one side of the U-shaped opening of the lock buckle is buckled with the buckle opening of the swing rod; the lock buckle is in a U-shape, and a limiting protrusion is provided on one side of the bracket; the limiting protrusion of the lock buckle is symmetrically protruded from the other side of the edge protrusion extending out of the outer diameter of the bracket, and the edge protrusion of the lock buckle is triangular and forms a guide edge with one side of the opening edge of the lower bracket. A transition notch is provided between the bending surface of the swing rod and the buckle on one side where the swing rod and the lock buckle are buckled, and the transition notch of the swing rod is connected to the buckle opening, and a round chamfered edge is provided on the other side of the bending surface of the swing rod. The above-mentioned bracket includes an upper bracket 2 and a lower bracket 6, the opening edge is set in the middle of one side edge of the lower bracket, and the upper bracket and the lower bracket are respectively raised in a "F" shape, and the notch between the upper bracket and the lower bracket is connected by a countersunk screw 3 and a lock nut 4, and a convex column and a groove for positioning assembly are provided at the connection, or a stamping column and a bending column for positioning assembly are provided at the edge of the connection. The "X"-shaped protrusion of the upper bracket is arranged on the locking portion 201 on one side of the push lock, and the notch on the other side of the upper bracket is provided with a parallel shaft mounting portion 202. The shaft mounting portion on one side of the notch is stamped and disconnected and connected to the lower bracket by a countersunk screw and a lock nut, and the first pin shaft, the second pin shaft and the corresponding lock torsion spring and the rocker arm torsion spring are arranged in a frame formed by the shaft mounting portion and the lower bracket.

[0019] When the push lock is unlocked with a key, the cylindrical part at the upper end of the push lock is pressed down, and the cylindrical part shrinks inward, driving the roller at the bottom of the push lock to slide downward; the roller contacts the bent surface at the end of the swing rod, and the swing rod begins to be stressed (such as Figure 2 As shown in the figure), since the bending surface of the swing rod is at a certain angle to the force direction, it will slide to one side after being subjected to force (as shown in the figure). Figure 3 As shown in the figure, the swing rod and the lock buckle are released from the self-locking position, and the lock buckle is automatically popped out under the torsion force of the torsion spring to open the buckle (as shown in the figure). Figure 4 As shown above Figure 3The bending direction of the middle swing rod is the same as the tangent direction of the motion trajectory of the swing rod after being subjected to force. Figure 4 The middle dotted line represents the lock open state and the swing lever open state, as well as the rotation direction.

[0020] In summary, the buckle effectively realizes the linkage opening of the push lock and the buckle, and has the following characteristics: 1. The inclined guide surface at the bending surface of the swing rod is made into an integrated structure with the swing rod, which reduces the cost; 2. The bending direction at the bending surface of the swing rod is the same as the tangent direction of the motion trajectory of the swing rod after the swing rod is subjected to force, which reduces the pressing resistance; 3. The transmission part at the bottom of the push lock adopts a roller structure, which reduces the friction between parts and improves the product life.

Claims

1. A long-life linkage unlocking buckle, the buckle comprising a push lock (1) and a buckle assembly; characterized in that One end of the lock (8) and one end of the swing rod (9) of the buckle assembly are respectively arranged in the bracket through a first pin shaft (7) and a second pin shaft (10), and the first pin shaft and the second pin shaft are respectively provided with a lock torsion spring (5) and a swing rod torsion spring (11), one end of the lock torsion spring is connected to the lock, and the other end of the lock torsion spring is against the inner wall of the bracket, one end of the swing rod torsion spring is connected to the swing rod, and the other end of the swing rod torsion spring is against the inner wall of the bracket; the bottom of the push lock (1) in the bracket extends out and is pushed through the push lock The shaft rod that moves up and down is provided with a roller (12), and while the other end of the swing rod in the bracket is engaged with the other end of the lock buckle, the roller abuts against the obliquely tilted bending surface (901) of the other end of the swing rod; when the shaft rod of the press lock is pressed downward, the roller pushes the swing rod and the lock buckle out of the engaged state along the bending surface of the swing rod; the other end of the lock buckle is provided with a U-shaped opening (801), and an opening edge is provided on one side edge of the bracket at the U-shaped opening, and the opening edge of the bracket and the U-shaped opening of the lock buckle are staggered up and down to form a closed lock opening.

2. The long-life linkage unlocking buckle according to claim 1 is characterized in that A buckling opening (902) is provided at the inner edge below the bent surface (901) at the other end of the swing rod (9), and a side end of the U-shaped opening (801) of the lock buckle (8) is buckled with the buckling opening of the swing rod.

3. The long-life linkage unlocking buckle according to claim 2 is characterized in that The lock buckle (8) is U-shaped, and a limiting protrusion is provided on one side of the bracket.

4. The long-life linkage unlocking buckle according to claim 3 is characterized in that The locking buckle (8) has a symmetrical edge protrusion on the other side of the limiting protrusion extending out of the outer diameter of the bracket. The edge protrusion of the locking buckle is triangular and forms a guide edge with one side of the opening edge of the bracket below.

5. The long-life linkage unlocking buckle according to claim 2, characterized in that A transition notch is provided between the bent surface (901) of the swing rod and the buckle (902) on one side where the swing rod (9) and the lock buckle (8) are buckled together, the transition notch of the swing rod is connected to the buckle, and a rounded chamfered edge is provided on the other side of the bent surface of the swing rod symmetrically.

6. The long-life linkage unlocking buckle according to claim 1, characterized in that The bracket comprises an upper bracket (2) and a lower bracket (6), the opening edge is arranged in the middle of one side edge of the lower bracket, the upper bracket and the lower bracket are respectively raised in a "F" shape, the notch between the upper bracket and the lower bracket is connected by a countersunk screw (3) and a lock nut (4), and a convex column and a groove for positioning assembly are provided at the connection, or a stamping column and a bending column for positioning assembly are provided at the edge of the connection.

7. The long-life linkage unlocking buckle according to claim 6, characterized in that The "X"-shaped protrusion of the upper bracket (2) is arranged on a locking portion (201) on one side of the push lock (1), and a parallel shaft mounting portion (202) is arranged at a notch on the other side of the upper bracket. The shaft mounting portion on one side of the notch is stamped and disconnected and connected to the lower bracket (6) via a countersunk screw (3) and a locking nut (4). The first pin shaft (7), the second pin shaft (10) and the corresponding lock torsion spring (5) and the swing arm torsion spring (11) are arranged in a frame formed by the shaft mounting portion and the lower bracket.

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