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CN-122008326-A - Safety scissors

CN122008326ACN 122008326 ACN122008326 ACN 122008326ACN-122008326-A

Abstract

A safety scissors belongs to the technical field of manual scissors. The scissors comprise a scissors body and are characterized by further comprising an upper protective shell, a lower protective shell and a torsion spring, wherein the left ends of the upper protective shell and the lower protective shell extend out of the left end of the scissors body and are fixed face to face, the right ends of the upper protective shell and the lower protective shell respectively correspond to the left end of the scissors body and the upper part and the lower part of the middle part of the scissors body, the torsion spring is arranged on the lower protective shell, a first torsion spring foot is hooked on the front blade, a second torsion spring foot is hooked on the rear blade, the front blade grasping handle is embedded in the front edge part of the middle part of the front blade, the rear blade grasping handle is embedded in the rear edge part of the middle part of the rear blade, the outward side surface of the right end of the front blade is formed into a front blade arc surface, and the outward side surface of the right end of the rear blade is formed into a rear blade arc surface. The multifunctional intelligent anti-theft alarm has the advantages of meeting the safety requirements of special people such as criminals in special scenes, being convenient to operate and labor-saving to use, reflecting excellent function integration effect, guaranteeing safety and avoiding abnormal removal and even loss.

Inventors

  • ZHENG JIANJUN

Assignees

  • 苏州池久节能电气有限公司

Dates

Publication Date
20260512
Application Date
20260409

Claims (10)

  1. 1. A safety scissors comprising a scissors body (1), the scissors body (1) comprising a front blade (11) and a rear blade (12) which are engaged with each other, left ends of the front and rear blades (11, 12) being hinged to each other on opposite sides thereof, and a space between the opposite sides of the right ends of the front and rear blades (11, 12) constituting a repulsive or closed scissors blade (13), characterized by further comprising an upper guard (2), a lower guard (3) and a torsion spring (4), the left ends of the upper guard (2) and the lower guard (3) protruding from the left end of the scissors body (1) and being fixed to each other face to face, and the right ends of the upper guard (2) and the lower guard (3) being respectively corresponding to the upper and lower sides of the middle of the scissors body (1), the torsion spring (4) being disposed on the lower guard (3) at a position between the opposite sides of the middle of the front and rear blades (11, 12), a first hook (4) of the torsion spring being hooked on the torsion spring (4) at a position corresponding to the front edge (11) of the front blade (41) and a position of the front blade (12) being fixedly hooked on the middle of the torsion spring (41), a rear blade grasping handle (15) is fitted to a rear side edge portion of the rear blade (12), the front and rear blade grasping handles (14, 15) are respectively corresponding to each other, a side surface of the front blade (11) facing outward is formed as a front blade arc surface (111), and a side surface of the rear blade (12) facing outward is formed as a rear blade arc surface (121).
  2. 2. A safety type scissors as set forth in claim 1, wherein a front blade thread take-up hook (112) is formed at a side of the right end of the front blade (11) toward the scissors blade (13), or a rear blade thread take-up hook is formed at a side of the right end of the rear blade (12) toward the scissors blade (13).
  3. 3. Safety scissors according to claim 1, characterized in that the opening angle (α) of the cutting edge (13) of the scissors is 12-22 °.
  4. 4. A pair of safety scissors according to claim 1, wherein a tubular seat fitting hole (21) is provided in the middle of the left end of the upper shield (2), a tubular seat (31) is provided in the middle of the left end of the lower shield (3) toward one side of the upper shield (2) and extends upward at a position corresponding to the tubular seat fitting hole (21), the tubular seat (31) corresponds to the tubular seat fitting hole (21), and a tubular passing hole (311) is formed in the center, and the tubular passing hole (311) and the tubular seat fitting hole (21) are penetrated by the tubular in use to restrict the upper and lower housings (2, 3) together with the scissors body (1) to a specific position, the tubular being a wire or a chain.
  5. 5. A pair of safety scissors according to claim 1, wherein a front blade hinge lug (113) is formed behind the left end of the front blade (11), a rear blade hinge lug (122) is formed in front of the left end of the rear blade (12), the rear blade hinge lug (122) is superposed above the front blade hinge lug (113) and is movably riveted by a hinge lug rivet (16) between the front and rear blade hinge lugs (113, 122), a front blade edge engaging groove (141) is formed on the rear side of the front blade grasping handle (14) and along the length direction of the front blade grasping handle (14), the front blade edge engaging groove (141) engages with the middle front edge of the front blade (11), a rear blade edge engaging groove (151) is formed on the front side of the rear blade grasping handle (15) and along the length direction of the rear blade grasping handle (15), the rear blade edge engaging groove (12) is in a position facing the rear edge of the hinge lug (16), a clearance rivet seat (25) is formed on the upper rivet seat (25) at a position corresponding to the rear edge of the rear blade hinge lug (12), a rivet setting seat (34) is formed at the upward side of the lower protective shell (3) and at a position corresponding to the riveting ear rivet (16), a rivet setting seat cavity (341) is formed at the central position of the rivet setting seat (34), and the lower part of the hinging ear rivet (16) corresponds to the rivet setting seat cavity (341).
  6. 6. A safety scissors according to claim 1, 4 or 5, wherein a pair of shield fixing screw holes (22) are provided at the left end of the upper shield (2), a shield fixing screw (221) is provided in each of the pair of shield fixing screw holes (22), a pair of screw fixing posts (32) is formed at the left end of the lower shield (3) toward one side and at positions corresponding to the pair of shield fixing screw holes (22), each of the pair of screw fixing posts (32) has a stud fixing screw hole (321), and the shield fixing screw (221) is screwed into the stud fixing screw hole (321).
  7. 7. The pair of safety scissors as claimed in claim 1, wherein a front blade torsion spring relief chamber (114) is formed at a position rearward of a middle portion of the front blade (11) and corresponding to a front side of the torsion spring (4), a rear blade torsion spring relief chamber (123) is formed at a position forward of a middle portion of the rear blade (12) and corresponding to a rear side of the torsion spring (4), the front and rear blade torsion spring relief chambers (114, 123) are each formed in a C-shaped configuration corresponding to each other, a torsion spring sleeve post (331) is formed at a position toward an upper side of the lower guard (3) and corresponding to the torsion spring (4), a torsion spring sleeve screw fixing hole (23) is formed at a position on the upper end center of the torsion spring sleeve post (2) and corresponding to a rear side of the torsion spring (4), the torsion spring sleeve (33) is provided with a torsion spring sleeve screw fixing hole (231) and is provided with a torsion spring sleeve screw fixing hole (231) disposed in the torsion spring sleeve (33).
  8. 8. A pair of safety scissors as set forth in claim 1, wherein a first torsion spring leg hooking hole (115) is formed in the front blade (11) at a position corresponding to the first torsion spring leg (41), a second torsion spring leg hooking hole (124) is formed in the rear blade (12) at a position corresponding to the second torsion spring leg (42), the first torsion spring leg (41) is hooked in the first torsion spring leg hooking hole (115) from top to bottom, and the second torsion spring leg (42) is hooked in the second torsion spring leg hooking hole (124) from bottom to top.
  9. 9. The pair of safety scissors according to claim 1, wherein the right end of the upper housing (2) has a width that is reduced relative to the left end so that a front side of the right end forms an upper housing front-blade grasping upper relief cavity (24), a rear side of the right end forms an upper housing rear-blade grasping upper relief cavity (27), a front side of the right end of the lower housing (3) has a lower housing front-blade grasping lower relief cavity (35) that is reduced relative to the left end so that a front side of the right end forms a lower housing rear-blade grasping lower relief cavity (36), a rear side of the right end forms a rear-blade grasping lower relief cavity (36), a lengthwise upper portion of the front-blade grasping handle (14) corresponds to the upper housing front-blade grasping upper relief cavity (24), a lengthwise lower portion of the front-blade grasping handle (14) corresponds to the lower housing front-blade grasping lower relief cavity (35), and a lengthwise rear-blade grasping rear-relief cavity (15) corresponds to the rear-side of the rear-blade grasping upper housing rear-relief cavity (15).
  10. 10. A safety scissors according to claim 1 or 9, characterized in that a chip or logo receiving cavity (26) is formed by a recess in the middle of the side of the upper casing (2) facing upwards.

Description

Safety scissors Technical Field The invention belongs to the technical field of manual scissors, and particularly relates to a safety type scissors. Background The safety scissors are mainly but not exclusively used as hand tools used in special scenes, for example, the safety scissors can also be used as tools for manual works such as manual lessons for groups such as students. The special scenario mentioned above is a high risk scenario, and typical examples of the high risk scenario are prisons and/or caregivers. Taking prisons as an example, when a prisoner performs a sewing operation such as clothing, if the emotion changes or even goes out of control, the scissors become a tool for injuring others or performing self-disabled. Therefore, it is necessary to prevent this. Technical information related to the above safety shears is visible in the published chinese patent literature, such as document a.cn2132703 u recommended "an injury-preventing safety shears", document b.cn221475245u provided with "smart safety shears" and document c.cn211193968u introduced "a stab-preventing safety shears for flat prisons". The document A is characterized in that when scissors are not needed, the locking screw is rotated outwards, the blade is driven by the locking screw to move so as to retract the blade, and when the scissors are used, the blade is extended again, so that the blade is hidden, and the blade is prevented from being scratched in the taking process. The document a has trouble in use and collection, is laborious to operate, and cannot play a double protection role in avoiding injuring other people and preventing self-disabled to the maximum extent in the use process. The core function of the above document B is that when the tool bit is separated from the tool rest, an alarm signal can be sent out to prevent accidents caused by the movement of the broken tool bit, which is favorable for management and control, but the function of basically avoiding self-disabled and avoiding hurting others is also insufficient in the use process. Although the above document C can be described in paragraphs 0009 and 0020, the pair of scissors blades are not controlled by additional members and are liable to be detached or dismembered, and thus, there is still a hidden danger of unavoidable safety. Based on the prior art, the safety scissors have positive significance in designing the safety scissors with high safety, integrated functions, convenient and fast operation, labor saving, stable structure and favorable management and control, and the technical scheme to be described below is generated under the background. Disclosure of Invention The invention aims at providing the safe scissors which are beneficial to avoiding the self-disabled or hurt of people with incontrollable emotion so as to meet the use requirements of special people and special scenes, and are beneficial to ensuring the convenience of operation and labor saving of use, thereby embodying ideal practicability. Another object of the present invention is to provide a safety type scissors having a thread take-up function, which can satisfy a garment manufacturing scene without using a thread stripper or a thread take-up needle additionally, and which exhibits an excellent function integration effect. Another object of the present invention is to provide a safety type scissors capable of controlling the maximum opening degree of the cutting edge of the scissors to embody the stability of the structure and further guaranteeing the safety. Still another object of the present invention is to provide a safety scissors that is easy to manage and prevent abnormal removal or even loss. In order to embody the primary task of completing the invention, the technical scheme provided by the invention is as follows: the safe scissors comprise a scissors body, wherein the scissors body comprises a front blade and a rear blade which are matched with each other, the left ends of the front blade and the rear blade are hinged with each other at opposite sides, a space between the right ends of the front blade and the rear blade is a repulsive or closed scissors cutting edge, and the safe scissors are characterized by also comprising an upper protective shell, a lower protective shell and a torsion spring, wherein the left ends of the upper protective shell and the lower protective shell extend out of the left end of the scissors body and are fixed to each other in a face-to-face manner, the right ends of the upper protective shell and the lower protective shell respectively correspond to the upper part and the lower part of the left end of the scissors body and the middle part, the torsion spring is arranged on the lower protective shell at a position between the opposite sides of the middle parts corresponding to the front blade and the rear blade, a first torsion spring foot of the torsion spring is hooked on the front blade, a second torsion spring foot of the torsion spri