Scissors with safety lock catch

Abstract

The utility model relates to the technical field of scissors, in particular to a pair of scissors with a safety lock catch, which comprises a left scissor blade, a right scissor blade and a lock catch component, a main shaft screw sub-nail penetrates through the joint of the left scissor blade and the right scissor blade, and the top end of the main shaft screw sub-nail is arranged on the outer side of the left scissor blade. The tail end of the main shaft screw son nail is in threaded connection with the main shaft screw mother nail on the outer side of the right scissor blade, an installation hole is formed in the middle of the left scissor blade, and a lock catch assembly is installed in the installation hole and used for fixing the combined scissor blades. According to the scissors with the safety lock catch, the scissors can be effectively prevented from being accidentally opened in the using process, particularly, the safety of a user is improved during careful operation or operation needing cooperative work of two hands, the user can easily unlock the lock catch with one hand by designing a finger push nail, the scissors can be rapidly opened when needed, and the safety of the user is improved. The use convenience and comfort are greatly improved, and the humanized design of the tool is really realized.

Description

Technical Field

[0001] The utility model relates to the technical field of scissors, in particular to a pair of scissors with a safety lock buckle. Background Art

[0002] The design of traditional scissors is that two blades with handles are connected by a pin, and users can open and close the blades by operating the pin to cut objects. However, since the edge of the blade is very sharp, in order to safely store the blade when the scissors are not in use and avoid the blade from causing harm to people, the designer set a lock at the handle position where the pin is connected. The main function of this lock is to fix the combined blades to prevent the blades from accidentally opening without control and causing accidental injuries.

[0003] Although the lock is essential to protect the user's safety, its design does bring some inconvenience in actual use. Traditional locks usually require the coordinated operation of two hands to open smoothly, which may cause trouble for users in some cases. For example, when the user has only one hand free, such as when they are holding heavy objects or busy with other one-handed tasks, it may become quite difficult to use traditional locking scissors. To solve this problem, we need to explore a new way to protect the user's safety and reduce the inconvenience caused by the lock when using scissors, so as to make it more suitable for one-handed operation or simplify the operation process. Utility Model Content

[0004] The purpose of the utility model is to provide a pair of scissors with a safety lock to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A pair of scissors with a safety lock comprises a left scissor blade, a right scissor blade and a lock assembly, wherein a main shaft screw sub-nail with a top end arranged on the outside of the left scissor blade passes through the connection between the left scissor blade and the right scissor blade, the end of the main shaft screw sub-nail is screwed with the main shaft screw nut on the outside of the right scissor blade, a mounting hole is opened in the middle of the left scissor blade, and a lock assembly is installed in the mounting hole for fixing the combined left and right scissor blades.

[0007] Preferably, the lock assembly includes a lock, a lock torsion spring and a lock nail. A fixing hole is provided in the middle of the lock, the lock nail passes through the fixing hole, the lock torsion spring is mounted on the lock nail, and the lock is installed in the mounting hole in the middle of the left scissor blade through the lock nail. A screw groove is opened at the lower end of the lock, and a finger push pin is installed in the screw groove.

[0008] Preferably, a left handle is installed at the handle of the left scissor blade via a handle screw, and a right handle is installed at the handle of the right scissor blade via a handle screw, and an anti-slip groove is provided at the upper end of the right handle.

[0009] Preferably, an upper recessed portion is provided at the upper end of the lock catch, and a lower recessed portion is provided at the lower end thereof; one end of the lock catch torsion spring abuts against the lower recessed portion at the lower end of the lock catch, and the other end is fixed in the left handle.

[0010] Preferably, an inclined slot is provided in the middle of the right scissor blade, and the slot is engaged with an upper recessed portion at the upper end of the lock buckle.

[0011] Preferably, the blade width of the right scissor blade is smaller than that of the left scissor blade, and the right scissor blade is arranged in a streamlined arc shape, and the width of the right scissor blade is arranged to decrease from the handle to the tip.

[0012] Preferably, the outer side of the right scissor blade is provided with a serrated edge, the end of the serrated edge is provided with a bottle opener notch, and the upper end of the left scissor blade is provided with a shaving slot.

[0013] Compared with the prior art, the technical effects and advantages of the utility model are:

[0014] The utility model can effectively prevent the scissors from accidentally opening during use by setting a lock assembly, greatly reducing the risk of injury to the user, especially when handling sharp or dangerous objects; by designing a finger push pin, the user can easily release the lock with one hand, so that the scissors can be quickly opened when needed, greatly improving the convenience and comfort of use, and truly realizing the humanized design of the tool; in addition to the basic cutting function, the serrated edge and bottle opener notch design on the outer side of the right scissor blade enable the scissors to have additional functions such as sawing and bottle opening. This multifunctional design eliminates the need for users to carry multiple tools, thereby improving the practicality and convenience of the scissors. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the closed state of the utility model;

[0016] Figure 2 This is a schematic diagram of the utility model in an open state;

[0017] Figure 3 This is a rear view of the utility model in a closed state;

[0018] Figure 4 This is the overall structure diagram of the lock assembly of the utility model;

[0019] Figure 5 This is an exploded structural diagram of the lock assembly of the utility model.

[0020] In the figure: 1. Left scissor blade; 2. Right scissor blade; 3. Lock assembly; 4. Main shaft screw pin; 5. Main shaft screw nut; 6. Mounting hole; 7. Lock; 8. Lock torsion spring; 9. Lock pin; 10. Fixing hole; 11. Screw slot; 12. Thumb push pin; 13. Handle screw; 14. Left handle; 15. Right handle; 16. Anti-slip groove; 17. Upper recessed portion; 18. Lower recessed portion; 19. Card slot; 20. Serrated edge; 21. Bottle opener notch; 22. Slicer slot hole. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figures 1 to 5 The utility model provides a technical solution:

[0023] A pair of scissors with a safety lock, comprising a left scissor blade 1, a right scissor blade 2 and a lock assembly 3, wherein a main shaft screw sub-nail 4 with a top end arranged on the outside of the left scissor blade 1 penetrates through the connection between the left scissor blade 1 and the right scissor blade 2, and the end of the main shaft screw sub-nail 4 is screwed with a main shaft screw nut 5 on the outside of the right scissor blade 2, and the gap between the left scissor blade 1 and the right scissor blade 2 can be adjusted by rotating the screw connection degree of the main shaft screw sub-nail 4 and the main shaft screw nut 5, so as to realize the opening and merging of the scissors;

[0024] A mounting hole 6 is provided in the middle of the left scissor blade 1, and a locking assembly 3 is installed in the mounting hole 6 for fixing the combined left scissor blade 1 and the right scissor blade 2. Specifically, the locking assembly 3 includes a locking buckle 7, a locking buckle torsion spring 8 and a locking buckle nail 9. A fixing hole 10 is provided in the middle of the locking buckle 7, and the locking buckle nail 9 passes through the fixing hole 10, so that the locking buckle 7 can rotate around the locking buckle nail 9. The lock buckle torsion spring 8 is mounted on the lock buckle nail 9 to provide continuous torque for the lock buckle 7 to keep it in a specific position. The lock buckle 7 is installed in the mounting hole 6 in the middle of the left scissor blade 1 through the lock buckle nail 9. The lower end of the lock buckle 7 is provided with a screw groove 11, and a finger push pin 12 is installed in the screw groove 11; the upper end of the lock buckle 7 is provided with an upper recessed portion 17, and the lower end is provided with a lower recessed portion 18. One end of the lock buckle torsion spring 8 abuts against the lower recessed portion 18 at the lower end of the lock buckle 7, and the other end is fixed in the left handle 14. The lock buckle torsion spring 8 can provide continuous torque for the lock buckle 7. When the left scissor blade 1 and the right scissor blade 2 of the scissors are combined, the lock buckle 7 in the lock buckle assembly 3 will move to a position corresponding to the card slot 19 on the right scissor blade 2. Since the upper end of the lock buckle 7 is provided with an upper recessed portion 17, this upper recessed portion 17 will form a card connection relationship with the card slot 19. This locking relationship is maintained by the torque provided by the lock torsion spring 8, ensuring that the blades of the scissors can remain in a closed state when not subject to external forces. The user can press the finger push pin 12 to allow the lock 7 to overcome the torque of the lock torsion spring 8 and rotate the lock 7, thereby releasing the locking connection between the lock 7 and the card slot 19, allowing the blades of the scissors to open.

[0025] Specifically, a left handle 14 is installed at the handle of the left scissor blade 1 through a handle screw 13, and a right handle 15 is installed at the handle of the right scissor blade 2 through a handle screw 13. An anti-slip groove 16 is provided at the upper end of the right handle 15.

[0026] Specifically, an inclined slot 19 is provided in the middle of the right scissor blade 2, and the slot 19 is engaged with the upper recessed portion 17 at the upper end of the lock buckle 7, which can effectively fix the left scissor blade 1 and the right scissor blade 2 of the scissors to prevent them from accidentally opening during use, thereby improving the safety of the user.

[0027] Specifically, the blade width of the right scissor blade 2 is smaller than the blade width of the left scissor blade 1, and the right scissor blade 2 is set to a streamlined arc shape, and the width of the right scissor blade 2 is set to be from large to small from the handle to the tip of the blade. The design of the right scissor blade width from large to small enables the scissors to adapt to the shearing requirements of different thicknesses. Whether it is cutting thin paper or thick cloth, this type of scissors can provide a stable and uniform shearing effect.

[0028] Specifically, the outer side of the right scissor blade 2 is provided with a serrated edge 20, the end of the serrated edge 20 is provided with a bottle opener slot 21, and the upper end of the left scissor blade 1 is provided with a shaving slot 22, which increases the use and practicality of the scissors, making it a multifunctional tool that can cope with different scenarios and needs.

[0029] The working principle of this embodiment is as follows: when the left scissor blade 1 and the right scissor blade 2 are combined, the upper recessed portion 17 of the lock buckle 7 is engaged with the slot 19 on the right scissor blade 2. This engagement relationship is maintained by the torsion of the lock buckle torsion spring 8, so that the scissors remain in the combined state when not subjected to external forces; if the scissors are to be used for shearing, the lock buckle assembly 3 needs to be unlocked first. When unlocking, the user needs to press the finger push pin 12 with a finger, which can overcome the torsion of the lock buckle torsion spring 8 and make the lock buckle 7 rotate around the lock buckle pin 9. When the lock buckle 7 rotates and its upper recessed portion 17 is no longer engaged with the slot 19 on the right scissor blade 2, the scissors can be easily opened. Next, the user can place the object to be cut between the left scissor blade 1 and the right scissor blade 2, and then apply appropriate pressure to cut; after the cutting is completed, the user uses his fingers to press the finger push pin 12 again to make the lock buckle 7 rotate around the lock buckle pin 9. When the lock buckle 7 rotates until the recessed portion 17 on it is aligned with the slot 19 on the right scissor blade 2, the user can release the finger push pin 12. At this time, the torque of the lock buckle torsion spring 8 will automatically cause the lock buckle 7 to be stuck in the slot 19, thereby re-locking the scissors.

[0030] The remaining parts not described in this utility model are existing or known technologies.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pair of scissors with a safety lock, characterized in that: include: A left scissor blade (1), a right scissor blade (2) and a locking assembly (3); a main shaft screw nail (4) with a top end arranged on the outside of the left scissor blade (1) passes through the connection between the left scissor blade (1) and the right scissor blade (2); the end of the main shaft screw nail (4) is screwed to the main shaft screw nut (5) on the outside of the right scissor blade (2); a mounting hole (6) is opened in the middle of the left scissor blade (1), and the locking assembly (3) is installed in the mounting hole (6) for fixing the combined left scissor blade (1) and the right scissor blade (2); The lock assembly (3) comprises a lock (7), a lock torsion spring (8) and a lock nail (9); a fixing hole (10) is provided in the middle of the lock (7); the lock nail (9) passes through the fixing hole (10); the lock torsion spring (8) is sleeved on the lock nail (9); the lock (7) is installed in the installation hole (6) in the middle of the left scissor blade (1) through the lock nail (9); a screw groove (11) is provided at the lower end of the lock (7); a thumb push nail (12) is installed in the screw groove (11); A left handle (14) is installed at the handle of the left scissor blade (1) via a handle screw (13), and a right handle (15) is installed at the handle of the right scissor blade (2) via a handle screw (13), and an anti-slip groove (16) is provided at the upper end of the right handle (15); The lock buckle (7) is provided with an upper recessed portion (17) at its upper end and a lower recessed portion (18) at its lower end; one end of the lock buckle torsion spring (8) abuts against the lower recessed portion (18) at the lower end of the lock buckle (7), and the other end is fixed in the left handle (14); An inclined locking groove (19) is provided in the middle of the right scissor blade (2), and the locking groove (19) is locked with the upper recessed portion (17) at the upper end of the lock buckle (7).

2. A pair of scissors with a safety lock according to claim 1, characterized in that: The blade width of the right scissor blade (2) is smaller than the blade width of the left scissor blade (1), and the right scissor blade (2) is arranged in a streamlined arc shape, and the width of the right scissor blade (2) is arranged to decrease from the handle to the tip.

3. The scissors with a safety lock according to claim 1, characterized in that: The outer side of the right scissor blade (2) is provided with a serrated edge (20), the end of the serrated edge (20) is provided with a bottle opener notch (21), and the upper end of the left scissor blade (1) is provided with a shaving slot (22).

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