CN210650766U

CN210650766U - Folding art designing knife

Info

Publication number: CN210650766U
Application number: CN201921164857.1U
Authority: CN
Inventors: 高红涛
Original assignee: Zhejiang Xingda Stationery Co ltd
Current assignee: Zhejiang Xingda Stationery Co ltd
Priority date: 2019-07-23
Filing date: 2019-07-23
Publication date: 2020-06-02
Anticipated expiration: 2029-07-23

Abstract

The utility model discloses a folding art designer knife, which comprises a knife handle and a knife head, wherein the knife handle and the knife head are hinged by a hinge shaft connecting mechanism; the hinge shaft connecting mechanism comprises a cylindrical boss and a hinge shaft which are arranged on the two corresponding inner side surfaces at the joint of the heads of the upper hilt support and the lower hilt support of the hilt, and the cylindrical boss and the hinge shaft are respectively in a connected structure with the upper hilt support and the lower hilt support; a screw hole is formed in the center of the hinge shaft; the cylindrical boss is provided with a central through hole; the surfaces of the two ends of the hinge shaft and the cylindrical boss are connected in a leaning way, and a first fastening screw penetrates through the central through hole to be screwed and fastened with the screw hole; the cutter head is connected with the hinge shaft in a sliding fit manner through a cutter head connecting shaft sleeve arranged at the tail end and is hinged with the cutter handle. The utility model has the advantages that: the folding utility knife has the characteristics of simple structure, labor and time saving in assembly and low production cost after adopting the improved hinge connecting mechanism.

Description

Folding art designing knife

Technical Field

The utility model belongs to the technical field of the cutter technique and specifically relates to a foldable art designer's sword

Background

Art designing knives are commonly used by people for cutting objects, and the structural forms of the existing art designing knives are generally divided into three types: the folding utility knife is fixed, telescopic and foldable, and the knife head provided with the blade can be folded into the knife cavity of the knife handle when not in use, so that the utility knife is safe to use and small in occupied space, and is popular with users.

However, the structure of the hinge connecting mechanism of the tool bit and the tool handle of the existing folding art designing knife is complex, such as the patent number of the Chinese utility model: 200720103781.2 the hinge shaft of the hinge shaft connecting mechanism of the folding utility knife with safety changeable blade is composed of a special copper sleeve, a main nut and a screw for fixing the copper sleeve, and the manufacturing cost is high, so it is necessary to improve the hinge shaft connecting mechanism of the existing folding utility knife to reduce the cost of the folding utility knife and improve the use performance.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problems in the prior art, and provides a folding art knife which is improved in design, simple in structure, low in cost, convenient in assembly and connection and good in use effect.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: a folding art knife comprises a knife handle and a knife head, wherein the knife handle and the knife head are hinged by a hinge shaft connecting mechanism; the handle of a knife include mutual fixed connection's last handle of a knife support and lower handle of a knife support, on last handle of a knife support and lower handle of a knife support respectively the lock joint be fixed with handle of a knife shell and lower handle of a knife shell, its characterized in that: the hinge shaft connecting mechanism comprises a cylindrical boss and a hinge shaft which are respectively arranged on the corresponding inner side surfaces of the joint of the heads of the upper hilt support and the lower hilt support of the hilt, and the cylindrical boss and the hinge shaft are respectively in a connected structure with the upper hilt support and the lower hilt support; a screw hole is formed in the center of the hinge shaft; the cylindrical boss is provided with a central through hole; the surfaces of the two ends of the hinge shaft and the cylindrical boss are connected in a leaning way, and a first fastening screw penetrates through the central through hole to be screwed and fastened with the screw hole; the cutter head is connected with the hinge shaft in a sliding fit manner through a cutter head connecting shaft sleeve arranged at the tail end and is hinged with the cutter handle.

Furthermore, a check washer is arranged between the bottom surface of the screw head of the first fastening screw and the upper surface of the central through hole.

Furthermore, the lower end surface of the central through hole is also provided with a positioning counter bore, and the head end part of the hinge shaft is correspondingly abutted against the positioning counter bore.

Furthermore, the upper end surface of the central through hole is also provided with a counter bore, and the screw head part and the anti-loosening gasket of the first fastening screw are positioned in the counter bore.

Compared with the prior art, the utility model has the advantages of: the folding art designing knife adopts the improved hinge shaft connecting mechanism, so that the hinge shaft is formed by connecting the hinge shaft and the cylindrical boss which are arranged at the joint of the upper and lower knife handle support heads of the knife handle in a leaning way and fastening by a common standard part screw, and the folding art designing knife has the characteristics of simple structure, labor and time saving in assembly and low production cost. Meanwhile, a locking groove which can enable the knife rest to be positioned at an angle of 75 degrees and can be opened is further arranged between the locking groove which is opened and closed and is arranged on the bottom surface of the knife head connecting shaft sleeve, in actual use, if continuous operation is carried out, the knife is converted into operation at a position which forms an included angle of 105 degrees with the knife handle, and the fatigue of operation on the wrist can be relieved by converting the angle of one hand-held knife. This is also a feature of the present invention.

Drawings

Fig. 1 is a perspective view of an embodiment of the present invention;

fig. 2 is a schematic structural view of a hinge shaft connecting mechanism according to an embodiment of the present invention;

fig. 3 is an exploded perspective view of an embodiment of the present invention;

FIG. 4 is a schematic structural view of the tool bit tail connecting sleeve according to the embodiment of the present invention;

fig. 5 is a schematic view of the state of the knife head when the knife head is opened and fixed at an included angle of 105 degrees with the knife handle.

In the figure: 1. the tool holder comprises a tool holder body, 11, an upper tool holder support, 111, a boss, 112, a central through hole, 113, a positioning counter bore, 114, a counter bore, 12, a lower tool holder support, 121, a hinge shaft, 122, a screw hole, 123, an arc groove, 13, an upper tool holder shell, 14, a lower tool holder shell, 15, a first fastening screw, 16, a locking gasket, 17, a second fastening screw, 18, a third fastening screw, 2, a tool bit, 21, a tool bit connecting shaft sleeve, 211, an unlocking groove, 212, a closing locking groove, 213, an auxiliary locking groove, 3, a fastener, 4, a locking key, 41, a groove, 42, a locking head, 5 and a reset spring.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in fig. 1 to 4, a folding art knife comprises a knife handle 1 and a knife head 2, wherein a knife handle inner cavity in which the knife head 2 can be placed is arranged in the knife handle 1, and the knife handle 1 and the knife head 2 are hinged by a hinge shaft connecting mechanism; the knife handle 1 comprises an upper knife handle support 11 and a lower knife handle support 12 which are fixedly connected with each other, an upper knife handle shell 13 and a lower knife handle shell 14 are respectively fastened and fixed on the upper knife handle support 11 and the lower knife handle support 12, and a pin 3 is arranged and fixed on the outer surface of the lower knife handle shell 14;

the hinge shaft connecting mechanism comprises a cylindrical boss 111 and a hinge shaft 121 which are respectively arranged on the two corresponding inner side surfaces of the head connecting part of the upper knife handle support 11 and the lower knife handle support 12 of the knife handle 1, the cylindrical boss 111 and the hinge shaft 121 are respectively in a connected structure with the upper knife handle support 11 and the lower knife handle support 12, and the connected structure is manufactured and formed by a die-casting process; a screw hole 122 is formed in the center of the hinge shaft 121; the cylindrical boss 111 is provided with a central through hole 112, the lower end surface of the central through hole 112 is provided with a positioning counter bore 113, the head end of the hinge shaft 121 is correspondingly abutted against the positioning counter bore 113, and is screwed and fastened with the screw hole 122 through the central through hole 112 by a first fastening screw 15 sleeved with a check washer 16; the cutter head 2 is connected with the hinge shaft 121 in a sleeved sliding fit manner through a cutter head connecting shaft sleeve 21 arranged at the tail end and is hinged with the cutter handle 1;

the upper end surface of the central through hole 112 of the cylindrical boss 111 is further provided with a counter bore 114, and the screw head part of the first fastening screw 15 and the anti-loosening gasket 16 are positioned in the counter bore 114;

the hinged part of the cutter head connecting shaft sleeve 21 and the hinged shaft 121 is also provided with a positioning and fixing mechanism for fully opening and folding the cutter head, the positioning and fixing mechanism comprises a locking key 4 arranged on the upper side of the hinged shaft 111 and a return spring 5 connected with the bottom of the locking key 4, the head of the locking key 4 extends out of the upper surface of the head of the upper cutter handle bracket 11, and the lower part of the return spring 5 connected with the bottom of the locking key 4 is arranged in an arc groove 123 arranged on the upper surface of the lower cutter handle bracket 12 on the upper side of the hinged shaft; the middle part of the locking key 4 is provided with a groove 41, the lower part of the locking key 4 is provided with a locking head 42, correspondingly, the lower surface of the connecting shaft sleeve 21 of the cutter head 2 is positioned at a full opening position and a folding closing position and is provided with an unlocking groove 211 and a closing groove 212 corresponding to the locking head 42 of the locking key 4, when the cutter head is positioned at the full opening position and the folding closing position, the locking head 42 of the locking key 4 is correspondingly placed in the unlocking groove 211 and the closing groove 212, the cutter head 2 is positioned and fixed at the full opening state or the folding closing state, when in use, the cutter head is folded and closed to be placed in the inner cavity of the cutter handle in the opening state, the cutter head can be turned over by hand to be placed in the inner cavity of the cutter handle as long as the locking key is pressed to separate the locking head from the connection with the unlocking groove, at the moment, the locking head of the locking key is correspondingly placed, if the cutter head is opened, the reverse operation can be carried out.

In practical use, as shown in fig. 5, after the knife is fully opened for a period of time, the knife is switched to operate at an included angle of 105 degrees with the knife handle, and the fatigue of the wrist in operation can be reduced by changing the angle of one hand-held knife.

The above-described embodiments of the present invention do not limit the scope of the present invention, and any modifications, equivalent replacements, and improvements made within the spirit of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A folding art knife comprises a knife handle (1) and a knife head (2), wherein the knife handle (1) and the knife head (2) are hinged by a hinge shaft connecting mechanism; handle of a knife (1) including mutual fixed connection's last handle of a knife support (11) and lower handle of a knife support (12), on last handle of a knife support (11) and lower handle of a knife support (12) respectively the lock joint be fixed with last handle of a knife shell (13) and lower handle of a knife shell (14), its characterized in that: the hinge shaft connecting mechanism comprises a cylindrical boss (111) and a hinge shaft (121) which are respectively arranged on the two corresponding inner side surfaces of the joint of the upper cutter handle support (11) and the lower cutter handle support (12) of the cutter handle (1), and the cylindrical boss (111) and the hinge shaft (121) are respectively in a connected structure with the upper cutter handle support (11) and the lower cutter handle support (12); a screw hole (122) is formed in the center of the hinge shaft (121); a central through hole (112) is formed in the cylindrical boss (111); the hinge shaft (121) is connected with the end surfaces of the two ends of the cylindrical boss (111) in a leaning way, and a first fastening screw (15) penetrates through the central through hole (112) to be fastened with the screw hole (122) in a threaded way; the cutter head (2) is connected with the hinge shaft (121) in a sleeved sliding fit manner through a cutter head connecting shaft sleeve (21) arranged at the tail end and is hinged with the cutter handle (1).

2. The folding utility knife of claim 1, wherein: and a check washer (16) is also arranged between the bottom surface of the screw head of the first fastening screw (15) and the upper surface of the central through hole (112).

3. The folding utility knife of claim 1, wherein: the lower end surface of the central through hole (112) is further provided with a positioning counter bore (113), and the head end part of the hinge shaft (121) is correspondingly abutted against the positioning counter bore (113).

4. The folding utility knife of claim 2, wherein: the upper end surface of the central through hole (112) is further provided with a counter bore (114), and the screw head of the first fastening screw (15) and the anti-loosening gasket (16) are located in the counter bore (114).