Box opening tool

Abstract

The application provides an opening box tool, which comprises a shell, a cutter, a locking piece and a reset piece, the shell is provided with a through hole; the cutter comprises a cutter body rotatably arranged in the shell and a plurality of cutting parts arranged at intervals along the circumference of the cutter body, at least one cutting part extends out of the through hole; the locking piece is rotatably arranged in the shell and one end of the locking piece is inserted between two adjacent cutting parts; the reset piece is arranged in the shell and connected with the locking piece; when the cutter is in a locking state, the locking piece is located at a locking position, the cutter body is locked by the locking piece and cannot rotate around a first direction, at this time, the cutting part extending out of the through hole can be used for opening box operation; when the cutter is in a cutter changing state, the cutter body rotates around a second direction and pushes the locking piece to rotate from the locking position to an unlocking position, the second direction is opposite to the first direction, the reset piece can reset the locking piece from the unlocking position to the locking position to be inserted between another two adjacent cutting parts, and the cutting part extending out of the through hole is replaced.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of box opening devices, and particularly relates to a box opening tool. BACKGROUND

[0002] The business of an e-commerce operation warehouse is generally mainly unpacking business, and involves a large number of unpacking actions. In the existing warehouse, a meigong knife, a meigong knife blade (wrapped with adhesive tape or adhesive face sheet), a ballpoint pen, a PDA handwriting pen or a special box opening tool on the market is generally used in unpacking operation, and the use amount is huge, but at the same time, there are great disadvantages: 1. The meigong knife or the meigong knife blade is easy to scratch the goods in the box or the body safety is poor when used; 2. The box is opened by using the ballpoint pen or the PDA handwriting pen, which shortens the service life of the pen and has high use cost; 3. The blade of the special box opening tool is disposable, and has a short service life. SUMMARY

[0003] The box opening tool provided by the embodiment of the application solves the problems of poor safety and short service life of the existing box opening tool.

[0004] The box opening tool provided by the embodiment of the application includes a shell, a cutter, a locking piece and a reset piece, the shell is provided with a through hole; the cutter has a locking state and a cutter changing state, the cutter includes a cutter body and a plurality of cutting parts, the cutter body is rotatably arranged in the shell, the plurality of cutting parts are arranged at intervals along the circumference of the cutter body, and at least one cutting part extends from the through hole; the locking piece is rotatably arranged in the shell and has one end inserted between two adjacent cutting parts, the locking piece has a locking position and an unlocking position; the reset piece is arranged in the shell, and the reset piece is connected to the locking piece; when the cutter is in the locking state, the locking piece is located at the locking position, and the cutter body is locked by the locking piece and cannot rotate in a first direction; when the cutter is in the cutter changing state, the cutter body rotates in a second direction and pushes the locking piece to rotate from the locking position to the unlocking position, the reset piece can reset the locking piece from the unlocking position to the locking position, and the second direction is opposite to the first direction.

[0005] Optionally, the reset piece is a spring piece, the shell is provided with a first limiting column, one end of the spring piece is fixed on the shell, and the other end of the spring piece is connected to the locking piece after passing around the first limiting column.

[0006] Optionally, the shell comprises a bottom shell and an upper cover arranged opposite to the bottom shell, the first limiting column is arranged in the bottom shell, and the upper cover is provided with a second limiting column corresponding to the first limiting column; the first limiting column comprises a first connecting portion and a first limiting portion with an outer diameter smaller than that of the first connecting portion, the first connecting portion is connected to the bottom shell, and the first limiting portion is connected to one side of the first connecting portion facing the second limiting column, and the second limiting column is provided with a first limiting hole for inserting the first limiting portion.

[0007] Optionally, the reset member is a spring, one end of the spring is fixed to the shell, and the other end of the spring is connected to the locking member; or the reset member is a motor or a rotary air cylinder, and an output end of the motor or the rotary air cylinder is connected to the locking member.

[0008] Optionally, the box opening tool further comprises a protective cover, a first limiting member and a second limiting member, the protective cover is rotationally connected to the shell, and the first limiting member and the second limiting member are arranged on the shell; the protective cover has a shielding position for shielding the through hole and an open position for not shielding the through hole, the first limiting member can limit the protective cover at the shielding position when the protective cover is rotated to the shielding position, and the second limiting member can limit the protective cover at the open position when the protective cover is rotated to the open position.

[0009] Optionally, the protective cover is provided with a U-shaped groove, the shell is partially inserted into the U-shaped groove, and two opposite sides of the shell are rotationally connected to two groove walls of the U-shaped groove.

[0010] Optionally, the first limiting member and the second limiting member are both elastic protrusions, and the protective cover is provided with second limiting holes for clamping the elastic protrusions.

[0011] Optionally, the first limiting member and the second limiting member are both bolts, the shell comprises a bottom shell and an upper cover arranged opposite to the bottom shell, the bottom shell and the upper cover are connected through the first limiting member and the second limiting member, and the protective cover is provided with second limiting holes for clamping the nuts of the bolts.

[0012] Optionally, the shell comprises a bottom shell and an upper cover arranged opposite to the bottom shell, the bottom shell is arranged with a rotating shaft, and the upper cover is arranged with a third limiting column corresponding to the rotating shaft; the rotating shaft comprises a second connecting part and a rotating shaft part with an outer diameter smaller than the second connecting part, the second connecting part is connected to the bottom shell, the rotating shaft part is connected to one side of the second connecting part facing the third limiting column, and the third limiting column is arranged with a third limiting hole for inserting the rotating shaft part; one end of the locking piece is sleeved on the rotating shaft part, and the other end of the locking piece is inserted between two adjacent cutting parts.

[0013] Optionally, the bottom shell is arranged with a first notch, the upper cover is arranged with a second notch opposite to the first notch, and the second notch and the first notch jointly form the through hole.

[0014] The opening tool provided by the embodiment of the application can be used for opening the box when the cutter is in the locking state, the locking piece is located at the locking position, the cutter body is locked by the locking piece and cannot rotate in the first direction, and the cutting part extending out of the through hole can be used for opening the box at this time; when the cutter is in the tool changing state, the cutter body is rotated in the second direction and pushes the locking piece to rotate from the locking position to the unlocking position, the reset piece promotes the locking piece to reset from the unlocking position to the locking position to be inserted between the other two adjacent cutting parts, and the cutting part extending out of the through hole is replaced by the other cutting part. The length of the cutting part of the opening tool of the application extending out of the through hole is controllable, the goods or the package in the box is not easy to be scratched when the box is opened, the body of the operator is not easy to be scratched, the cutter has a plurality of cutting parts, the cutting part extending out of the through hole can be replaced by rotating the cutter body in the second direction, and the service life is longer. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creating labor.

[0016] In order to more completely understand the application and its beneficial effects, the following will be described with reference to the drawings. In the following description, the same reference signs represent the same parts.

[0017] Figure 1 The structure schematic diagram of the opening tool provided by the embodiment of the application in the use state.

[0018] Figure 2 The structure schematic diagram of the opening tool provided by the embodiment of the application in the non-use state.

[0019] Figure 3A first exploded structural schematic view of the box opening tool provided by the embodiment of the present application.

[0020] Figure 4 A second exploded structural schematic view of the box opening tool provided by the embodiment of the present application. Figure 3 A structural schematic view of another perspective of the box opening tool.

[0021] Figure 5 A second exploded structural schematic view of the box opening tool provided by the embodiment of the present application.

[0022] Figure 6 A first partial structural schematic view of the box opening tool provided by the embodiment of the present application.

[0023] Figure 7 A second partial structural schematic view of the box opening tool provided by the embodiment of the present application.

[0024] Figure 8 A third partial structural schematic view of the box opening tool provided by the embodiment of the present application.

[0025] Figure 9 A structural schematic view of the upper cover provided by the embodiment of the present application.

[0026] Figure 10 A structural schematic view of another perspective of the upper cover. Figure 9

[0027] BRIEF DESCRIPTION OF THE DRAWINGS

[0028] 100, shell; 101, through hole; 102, first limiting column; 1021, first connecting part; 1022, first limiting part; 1023, clamping groove; 103, second limiting column; 104, rotating shaft; 1041, second connecting part; 1042, rotating shaft part; 105, third limiting column; 110, bottom shell; 111, first threaded hole column; 112, second threaded hole column; 113, third threaded hole column; 114, first notch; 120, upper cover; 121, first through hole column; 122, second through hole column; 124, second notch; 200, cutter; 210, cutter body; 220, cutting part; 300, locking piece; 400, reset piece; 500, protective cover; 501, U-shaped groove; 502, second limiting hole; 503, connecting through hole; 510, first bolt; 601, semispherical protrusion; 602, spring; 610, first limiting piece; 620, second limiting piece. DETAILED DESCRIPTION

[0029] ​With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0030] The opening box tool provided by the embodiments of the present application comprises a shell 100, a cutter 200, a locking piece 300 and a reset piece 400. Figures 1-8 As shown in the figure, the opening box tool provided by the embodiments of the present application comprises a shell 100, a cutter 200, a locking piece 300 and a reset piece 400, and the shell 100 is provided with a through hole 101; the cutter 200 has a locking state and a cutter changing state, and the cutter 200 comprises a cutter body 210 and a plurality of cutting parts 220, the cutter body 210 is rotatably arranged in the shell 100, the plurality of cutting parts 220 are arranged at intervals along the circumference of the cutter body 210, and at least one cutting part 220 extends out of the through hole 101; the locking piece 300 is rotatably arranged in the shell 100 and has one end inserted between two adjacent cutting parts 220, the locking piece 300 has a locking position and an unlocking position; the reset piece 400 is arranged in the shell 100, and the reset piece 400 is connected with the locking piece 300; when the cutter 200 is in the locking state, the locking piece 300 is located at the locking position, and the cutter body 210 is locked by the locking piece 300 and cannot rotate around the first direction A; when the cutter 200 is in the cutter changing state, the cutter body 210 is rotated around the second direction B and pushes the locking piece 300 to rotate from the locking position to the unlocking position, and the reset piece 400 can reset the locking piece 300 from the unlocking position to the locking position, and the second direction B is opposite to the first direction A. The connection between the reset piece 400 and the locking piece 300 comprises physical connection and abutment.

[0031] When the cutter 200 is in the locking state, the locking piece 300 is located at the locking position, and the cutter body 210 is locked by the locking piece 300 and cannot rotate around the first direction A, at this time, the cutting part 220 extending out of the through hole 101 can be used for opening box operation; when the cutter 200 is in the cutter changing state, the cutter body 210 is rotated around the second direction B and pushes the locking piece 300 to rotate from the locking position to the unlocking position, and the reset piece 400 resets the locking piece 300 from the unlocking position to the locking position to be inserted between another two adjacent cutting parts 220, so that the cutting part 220 extending out of the through hole 101 is replaced by another cutting part 220. The length of the cutting part 220 of the opening box tool of the present application extending out of the through hole 101 is controllable, and the box contents or packaging is not easy to be scratched during opening, and the operator's body is not easy to be scratched. Since the cutter 200 has a plurality of cutting parts 220, the cutting part 220 extending out of the through hole 101 can be replaced by rotating the cutter body 210 around the second direction B, so the service life is longer.

[0032] Optionally, the shell 100 can be provided in a cylindrical shape, a cuboid shape, a square shape or other shapes, and the size can be designed according to actual needs, so as to be convenient to hold in hand. For example, as shown in Figure 1 and Figure 2 shown, the shell 100 is in a cylindrical shape, and the diameter of the cylindrical shell 100 is 35 mm and the height is 12 mm, which is convenient for use and carrying.

[0033] Optionally, the cutting part 220 can be provided in a blade structure, but is not limited to, as long as it can cut the adhesive tape. For example, as shown in Figures 5-8 shown, the cutting part 220 is in a blade structure, and a plurality of cutting parts 220 are distributed in a spiral shape along the circumference of the cutter body 210. Preferably, the length of the cutting part 220 extending from the through hole 101 is set to 4-5 mm, which is close to the thickness of the corrugated paper of the existing carton, so that the goods or packaging in the carton are not easily scratched when cutting the carton adhesive tape, and the sharpness of the cutting part 220 is limited, which is not easy to scratch the body of the operator, and the safety is better.

[0034] Optionally, the number of cutting parts 220 can be two, three or more, which can be set according to actual needs. For example, as shown in Figures 5-8 shown, the number of cutting parts 220 is ten, and the ten cutting parts 220 are arranged at intervals along the circumference of the cutter body 210. When some cutting parts 220 are severely worn, the remaining cutting parts 220 can be replaced in turn for continuous use, which theoretically prolongs the service life of the existing carton opening tool by nine times.

[0035] In some embodiments of the present application, as shown in Figures 3-6 shown, the reset member 400 is a spring, the shell 100 is provided with a first limiting column 102, one end of the spring is fixed on the shell 100, and the other end of the spring is connected with the locking member 300 after passing around the first limiting column 102; when the cutter 200 is in the tool changing state, the cutter body 210 rotates in the second direction B and pushes the locking member 300 to rotate from the locking position to the unlocking position, at this time the end of the spring connected with the locking member 300 is extruded by the locking member 300, and the elastic restoring force generated by the extruded spring will drive the locking member 300 to reset from the unlocking position to the locking position to be inserted between the other two adjacent cutting parts 220.

[0036] Further, as shown in Figures 3-8 shown, the shell 100 includes a bottom shell 110 and an upper cover 120 arranged opposite to the bottom shell 110, the cutter 200, the locking member 300 and the reset member 400 are arranged between the bottom shell 110 and the upper cover 120, and the first limiting column 102 is arranged in the bottom shell 110, as shown in Figure 9 and Figure 10As shown, the upper cover 120 is provided with a second limiting column 103 corresponding to the first limiting column 102; the first limiting column 102 comprises a first connecting part 1021 and a first limiting part 1022 with a smaller outer diameter than the first connecting part 1021, the first connecting part 1021 is connected to the bottom shell 110, the first limiting part 1022 is connected to one side of the first connecting part 1021 facing the second limiting column 103, and the second limiting column 103 is provided with a first limiting hole for inserting the first limiting part 1022. By setting the first limiting column 102 to comprise the above-mentioned first connecting part 1021 and the second limiting part and setting the above-mentioned first limiting hole in the second limiting column 103, the spring sheet can be limited between the first limiting column 102 and the second limiting column 103, thereby improving the stability of the spring sheet.

[0037] In some embodiments of the present application, as shown in Figure 7 and Figure 8 As shown, the reset member 400 is a spring sheet, the shell 100 is provided with a first limiting column 102, the first limiting column 102 is provided with a clamping groove 1023, one end of the spring sheet is clamped in the clamping groove 1023, and the other end of the spring sheet is connected with the locking member 300; when the cutter 200 is in the tool changing state, the cutter body 210 rotates around the second direction B and pushes the locking member 300 to rotate from the locking position to the unlocking position, at this time, the end of the spring sheet connected with the locking member 300 is extruded by the locking member 300, and the elastic restoring force generated by the extruded spring sheet will drive the locking member 300 to reset from the unlocking position to the locking position to be inserted between the other two adjacent cutting parts 220. Alternatively, the reset member 400 can also be a spring, one end of the spring is fixed on the shell 100, and the other end of the spring is connected with the locking member 300; when the cutter 200 is in the tool changing state, the cutter body 210 rotates around the second direction B and pushes the locking member 300 to rotate from the locking position to the unlocking position, at this time, the spring is compressed, and the elastic restoring force generated by the compressed spring will drive the locking member 300 to reset from the unlocking position to the locking position to be inserted between the other two adjacent cutting parts 220. Alternatively, the reset member 400 can also be a motor or a rotary air cylinder (also called a rotary cylinder), the output end of the motor or the rotary air cylinder is connected with the locking member 300, when the cutter 200 is in the tool changing state, the cutter body 210 rotates around the second direction B and pushes the locking member 300 to rotate from the locking position to the unlocking position, at this time, the motor or the rotary air cylinder can drive the locking member 300 to rotate from the unlocking position to the locking position to be inserted between the other two adjacent cutting parts 220.

[0038] In some embodiments of the present application, as shown in Figures 1-5As shown, the opening tool further comprises a protective cover 500, a first limiting piece 610 and a second limiting piece 620. The protective cover 500 is rotationally connected with the shell 100, and the first limiting piece 610 and the second limiting piece 620 are both arranged on the shell 100. The protective cover 500 has a shielding position for shielding the through hole 101 and an open position for not shielding the through hole 101. When the protective cover 500 is rotated to the shielding position, the first limiting piece 610 can limit the protective cover 500 at the shielding position. When the protective cover 500 is rotated to the open position, the second limiting piece 620 can limit the protective cover 500 at the open position. By arranging the protective cover 500, when the opening tool is not used, the protective cover 500 can be rotated to the shielding position and limited by the first limiting piece 610, so that the cutting part 220 at the through hole 101 is shielded by the protective cover 500, to prevent the cutting part 220 from scratching the operator. The structure of the opening tool in the non-use state is as shown in Figure 2 ; when the opening tool needs to be used for opening operation, the protective cover 500 only needs to be rotated to the open position, so that the protective cover 500 no longer shields the cutting part 220 at the through hole 101. The structure of the opening tool in the use state is as shown in Figure 1 .

[0039] Optionally, the protective cover 500 is provided with a U-shaped groove 501, and the shell 100 is partially inserted into the U-shaped groove 501, and two opposite sides of the shell 100 are rotationally connected with two groove walls of the U-shaped groove 501, so that the protective cover 500 does not need to occupy additional space when switching to the shielding position or the open position, and it is more convenient for the operator to take and use. Specifically, as shown in Figure 3 , Figure 5 and Figure 9 , the bottom shell 110 and the upper cover 120 of the shell 100 are oppositely provided with third threaded hole columns 113, the two groove walls of the U-shaped groove 501 are respectively provided with connecting through holes 503, and the two third threaded hole columns 113 and the two connecting through holes 503 are one-to-one connected by first bolts 510, so as to rotationally connect the two opposite sides of the shell 100 with the two groove walls of the U-shaped groove 501, and the protective cover 500 can be rotated around the two first bolts 510 at the same time.

[0040] Optionally, as shown in Figure 5As shown, the first limiting member 610 and the second limiting member 620 can both be elastic protrusions, and the protective cover 500 is provided with a second limiting hole 502 for the elastic protrusion to be clamped into, when the elastic protrusion is clamped into the second limiting hole 502, the protective cover 500 is limited at the shielding position, at this time, the cutting part 220 protruding from the through hole 101 is located in the U-shaped groove 501, that is, the cutting part 220 at the through hole 101 is shielded by the protective cover 500; when the second elastic protrusion is clamped into the limiting hole, the protective cover 500 is limited at the open position, at this time, the cutting part 220 protruding from the through hole 101 is located outside the U-shaped groove 501, that is, the cutting part 220 at the through hole 101 is not shielded by the protective cover 500. Specifically, as shown in Figure 5 As shown, the elastic protrusion includes a hemispherical protrusion 601 and a spring 602, one end of the spring 602 is connected to the shell 100, and the other end of the spring 602 is connected to the hemispherical protrusion 601, when the protective cover 500 rotates to contact the hemispherical protrusion 601, the spring 602 is compressed, so that the hemispherical protrusion 601 can be clamped into the second limiting hole 502 on the protective cover 500 to limit the protective cover 500; and when the protective cover 500 continues to rotate to contact the hemispherical protrusion 601 again, the spring 602 is compressed again, so that the hemispherical protrusion 601 can be taken out of the second limiting hole 502 on the protective cover 500 to release the limiting of the protective cover 500.

[0041] Alternatively, as shown in Figures 1-4 The first limiting member 610 and the second limiting member 620 can also both be bolts, the shell 100 includes a bottom shell 110 and an upper cover 120 arranged opposite to the bottom shell 110, the cutter 200, the locking member 300 and the reset member 400 are arranged between the bottom shell 110 and the upper cover 120, the bottom shell 110 and the upper cover 120 are connected through the first limiting member 610 and the second limiting member 620, and the protective cover 500 is provided with a second limiting hole 502 for a nut of the bolt to be clamped into. When the protective cover 500 rotates to contact the nut of the bolt, the side of the protective cover 500 provided with the second limiting hole 502 is slightly moved away from the shell 100, so that the nut is clamped into the second limiting hole 502 on the protective cover 500 to limit the protective cover 500; when it is needed to release the limiting of the protective cover 500, the side of the protective cover 500 provided with the second limiting hole 502 is slightly moved away from the shell 100, and the protective cover 500 is rotated to make the nut taken out of the second limiting hole 502 on the protective cover 500.

[0042] Further, as shown in Figures 3-8 The bottom shell 110 is provided with a first screw hole column 111 and a second screw hole column 112 with threaded holes, the cutter body 210 is sleeved on the first screw hole column 111, as shown in Figure 9 and Figure 10As shown, the upper cover 120 is provided with a first through hole post 121 with a first through hole and a second through hole post 122 with a second through hole; the first through hole post 121 corresponds to the first threaded hole post 111 and is connected by the first limiting piece 610 (i.e. a bolt), and the second through hole post 122 corresponds to the second threaded hole post 112 and is connected by the second limiting piece 620 (i.e. a bolt), so as to realize the connection of the bottom shell 110 and the upper cover 120, thus reducing the threaded holes on the outer surface of the bottom shell 110, and making the overall structure of the box opening tool more beautiful.

[0043] In some embodiments of the present application, as shown in Figures 3-8 As shown, the shell 100 includes a bottom shell 110 and an upper cover 120 arranged opposite to the bottom shell 110, the cutter 200, the locking piece 300 and the reset piece 400 are all arranged between the bottom shell 110 and the upper cover 120, and the bottom shell 110 is provided with a rotating shaft 104, as shown in Figure 9 and Figure 10 As shown, the upper cover 120 is provided with a third limiting post 105 corresponding to the rotating shaft 104; the rotating shaft 104 includes a second connecting part 1041 and a rotating shaft part 1042 with an outer diameter smaller than the second connecting part 1041, the second connecting part 1041 is connected to the bottom shell 110, the rotating shaft part 1042 is connected to one side of the second connecting part 1041 facing the third limiting post 105, and the third limiting post 105 is provided with a third limiting hole for inserting the rotating shaft part 1042; one end of the locking piece 300 is sleeved on the rotating shaft part 1042, and the other end of the locking piece 300 is inserted between two adjacent cutting parts 220. By arranging the rotating shaft 104 to include the above-mentioned second connecting part 1041 and rotating shaft part 1042 and arranging the above-mentioned second limiting hole 502 on the third limiting post 105, the locking piece 300 can be limited between the rotating shaft 104 and the third limiting post 105, thereby improving the stability of the locking piece 300.

[0044] Optionally, when the shell 100 includes the bottom shell 110 and the upper cover 120 arranged opposite to the bottom shell 110, the bottom shell 110 is provided with a first notch 114, and the upper cover 120 is provided with a second notch 124 opposite to the first notch 114, and the second notch 124 and the first notch 114 jointly constitute a through hole 101.

[0045] The working principle of the box opening tool provided by the embodiments of the present application is as follows:

[0046] As shown in Figure 6 When the operator applies a force to make the cutter body 210 rotate in the first direction A (i.e. the counterclockwise direction in Figure 6 ), the cutting part 220 is clamped by the locking piece 300, and the cutter 200 is in a locked state, which can be used for cutting the paper box tape and performing the box opening operation; when the operator applies a force to make the cutter body 210 rotate in the second direction B (i.e. the clockwise direction in Figure 6When the cutting part 220 is rotated by the force in the clockwise direction, the cutting part 220 will lift the locking piece 300 to rotate the locking piece 300 from the stop position to the unlocking position in the first direction A (i.e. Figure 6 When the cutting part 220 is rotated by the force in the counterclockwise direction, the reset piece 400 will drive the locking piece 300 to rotate from the unlocking position to the stop position in the second direction B (i.e. Figure 6 When the cutting part 220 is rotated by the force in the counterclockwise direction, the reset piece 400 will drive the locking piece 300 to rotate from the unlocking position to the stop position in the second direction B (i.e.

[0047] In the above embodiments, the description of each embodiment is focused on, and the part not described in detail in a certain embodiment can be referred to the related description of other embodiments.

[0048] In the description of the present application, the terms "first", "second", etc. are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second", etc. can explicitly or implicitly include one or more features.

[0049] The opening box tool provided by the embodiments of the present application is described in detail above, and the principle and implementation manner of the present application are described by applying specific examples; the above embodiment description is only used to help understand the method of the present application and its core idea; meanwhile, for those skilled in the art, according to the idea of the present application, the specific implementation manner and application range will be changed, and according to the above, the content of the specification should not be understood as the limitation of the present application.

Claims

1. An opening box tool characterized by, The utility model relates to an opening tool for box, which comprises: a shell (100) provided with a through hole (101); a cutter (200) having a locking state and a tool changing state, the cutter (200) comprising a cutter body (210) and a plurality of cutting parts (220), the cutter body (210) being rotatably arranged in the shell (100), and the plurality of cutting parts (220) being arranged at intervals along the circumference of the cutter body (210), at least one of the cutting parts (220) extending from the through hole (101); a locking member (300) rotatably arranged in the shell (100) and inserted between two adjacent cutting parts (220) at one end, the locking member (300) having a locking position and an unlocking position; a reset member (400) arranged in the shell (100), the reset member (400) being connected to the locking member (300); a protective cover (500), a first limiting member (610) and a second limiting member (620), the protective cover (500) being rotatably connected to the shell (100), and the first limiting member (610) and the second limiting member (620) both being arranged on the shell (100); when the cutter (200) is in the locking state, the locking member (300) is in the locking position, and the cutter body (210) is locked by the locking member (300) and cannot rotate in a first direction; when the cutter (200) is in the tool changing state, the cutter body (210) rotates in a second direction and pushes the locking member (300) to rotate from the locking position to the unlocking position, and the reset member (400) can reset the locking member (300) from the unlocking position to the locking position, the second direction being opposite to the first direction; the protective cover (500) has a shielding position shielding the through hole (101) and an open position not shielding the through hole (101), when the protective cover (500) rotates to the shielding position, the first limiting member (610) can limit the protective cover (500) in the shielding position, and when the protective cover (500) rotates to the open position, the second limiting member (620) can limit the protective cover (500) in the open position.

2. The opening tool for box according to claim 1, wherein the reset member (400) is a spring, the shell (100) is provided with a first limiting column (102), one end of the spring is fixed on the shell (100), and the other end of the spring is connected to the locking member (300) after passing around the first limiting column (102).

3. The opening tool for box according to claim 2, wherein The shell (100) comprises a bottom shell (110) and an upper cover (120) arranged opposite to the bottom shell (110), the first limiting column (102) is arranged in the bottom shell (110), and the upper cover (120) is provided with a second limiting column (103) corresponding to the first limiting column (102); The first limiting column (102) comprises a first connecting part (1021) and a first limiting part (1022) with an outer diameter smaller than that of the first connecting part (1021), the first connecting part (1021) is connected to the bottom shell (110), the first limiting part (1022) is connected to one side of the first connecting part (1021) facing the second limiting column (103), and the second limiting column (103) is provided with a first limiting hole for inserting the first limiting part (1022).

4. The box opening tool according to claim 1, wherein The reset member (400) is a spring, one end of the spring is fixed to the shell (100), and the other end of the spring is connected to the locking member (300). Alternatively, the reset member (400) is a motor or a rotary air cylinder, and an output end of the motor or the rotary air cylinder is connected to the locking member (300).

5. The box opening tool according to claim 1, wherein The protective cover (500) is provided with a U-shaped groove (501), the shell (100) is partially inserted into the U-shaped groove (501), and two opposite sides of the shell (100) are respectively rotationally connected to two groove walls of the U-shaped groove (501).

6. The box opening tool according to claim 5, wherein The first limiting member (610) and the second limiting member (620) are both elastic protrusions, and the protective cover (500) is provided with second limiting holes (502) for clamping the elastic protrusions.

7. The box opening tool according to claim 5, wherein The first limiting member (610) and the second limiting member (620) are both bolts, the shell (100) comprises a bottom shell (110) and an upper cover (120) arranged opposite to the bottom shell (110), the bottom shell (110) and the upper cover (120) are connected through the first limiting member (610) and the second limiting member (620), and the protective cover (500) is provided with second limiting holes (502) for clamping nuts of the bolts.

8. The box opening tool according to claim 1, wherein ​ The shell (100) comprises a bottom shell (110) and an upper cover (120) arranged opposite to the bottom shell (110), the bottom shell (110) is arranged with a rotating shaft (104), and the upper cover (120) is arranged with a third limiting column (105) corresponding to the rotating shaft (104); The rotating shaft (104) comprises a second connecting part (1041) and a rotating shaft part (1042) with an outer diameter smaller than the second connecting part (1041), the second connecting part (1041) is connected to the bottom shell (110), the rotating shaft part (1042) is connected to one side of the second connecting part (1041) facing the third limiting column (105), and the third limiting column (105) is provided with a third limiting hole for inserting the rotating shaft part (1042); One end of the locking piece (300) is sleeved on the rotating shaft part (1042), and the other end of the locking piece (300) is inserted between two adjacent cutting parts (220).

9. The box opening tool according to claim 3, 7 or 8, wherein The bottom shell (110) is provided with a first notch (114), and the upper cover (120) is provided with a second notch (124) opposite to the first notch (114), and the second notch (124) and the first notch (114) jointly form the through hole (101).

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