A box opener

Abstract

The technical scheme belongs to the technical field of cutters and specifically relates to an opening cutter, which comprises a cutter device, a marker device and a connecting device, the connecting device being connected to the cutter device and the marker device; the connecting device comprises a connecting rope and / or a magnetic attraction mechanism; two ends of the connecting rope are connected to the rear ends of the cutter device and the marker device respectively; the magnetic attraction mechanism comprises a magnet and a magnetic attraction piece, the magnet and the magnetic attraction piece being magnetically attracted to each other, the magnet being installed on the side wall of the cutter device, and the magnetic attraction piece being installed on the side wall of the marker device; the connecting device is used to connect the cutter device and the marker device, so that the overall function is diversified, and the opening cutter is convenient to carry and store; meanwhile, the connecting device adopts the connecting rope and / or the magnet, so that the connection between the two modules of the cutter device and the marker device is facilitated, the flexibility of separation between the modules is retained, users can select corresponding modules according to requirements to match the modules, and the functional diversity of the tool is improved.

Description

Technical Field

[0001] This technical solution relates to the field of cutting tool technology, specifically a box opener. Background Technology

[0002] A box opener is a tool used to open packaging materials such as boxes and cartons.

[0003] For example, Chinese patent CN202322019671.X discloses a box opener, which includes a blade, a handle unit, a blade head unit, and a spring unit. When in use, you only need to press the blade head at the place to be cut to make the blade automatically exposed for cutting. After use, the blade head automatically resets and covers the blade again, so that the blade will not be easily exposed and cause injury.

[0004] These types of box cutters have the drawback of being single-function, equipped with only a single blade for cutting, making them inconvenient to use. For example, while you can use a box cutter to cut tape when opening a package, the waybill contains personal information. To prevent the leakage of personal information when throwing away the package, you need to use a marker to cover up the information on the waybill after opening the package. This results in the need to use multiple tools, which are not only easy to lose, but also inconvenient to carry when going out, and you also need to find the corresponding parts when using them. Utility Model Content

[0005] The purpose of this technical solution is to provide a box opener that connects the knife device and the marker pen device through a connecting device, forming a modular portable tool, thereby improving the problems of existing box openers being single-function and inconvenient to use.

[0006] The purpose of this technical solution is achieved as follows:

[0007] A box opener includes:

[0008] A cutting tool device, a marker pen device, and a connecting device, wherein the connecting device connects the cutting tool device and the marker pen device;

[0009] The connecting device includes: a connecting rope and / or a magnetic attraction mechanism;

[0010] The two ends of the connecting rope are respectively connected to the rear ends of the cutting tool device and the marker pen device;

[0011] The magnetic attraction mechanism includes a magnet and a magnetic attracting element. The magnet and the magnetic attracting element are magnetically attracted to each other. The magnet is installed on the side wall of the cutting tool device, and the magnetic attracting element is installed on the side wall of the marker pen device.

[0012] Preferably, at least one mounting groove is provided on the side wall of the housing of the cutting tool device, and the magnet is installed in the mounting groove.

[0013] At least one mounting groove is provided on the side wall of the housing of the marker device, and the magnetic component is installed in the mounting groove.

[0014] Preferably, at least one protrusion is provided on the side wall of the housing, and the protrusion is provided with the mounting groove.

[0015] At least one protrusion is provided on the side wall of the housing 2, and the mounting groove is provided on the protrusion 2.

[0016] Preferably, the cutting tool device includes:

[0017] The first housing has an opening at its front end, and the side wall of the first housing has a strip-shaped hole along its length.

[0018] A blade is slidably disposed within the housing, and the tip of the blade can extend out of the housing through the opening;

[0019] A driving component is slidably disposed on the housing, and the driving component extends into the housing through the strip hole and is connected to the blade;

[0020] The blade slides within the slot by the drive member, causing the blade to slide within the housing, thus enabling the blade to extend or retract relative to the housing.

[0021] Preferably, a limiting groove is provided on the side wall of the strip hole;

[0022] The driving component can be engaged or disengaged from the limiting groove;

[0023] At least one limiting groove 2 is provided on the side wall of the strip hole, and the limiting groove 1 and the limiting groove 2 are arranged sequentially along the length direction of the strip hole;

[0024] The driving component can engage or disengage from the limiting groove.

[0025] Preferably, the driving component includes a driving part, a sliding part, and an abutting part. The driving part is located on the outer side of the housing, the sliding part is slidably disposed in the strip-shaped hole, and the abutting part is connected to a driving seat, thereby fixing the rear end of the blade to the driving seat through the abutting part.

[0026] Preferably, at least one fixing post is provided on the drive seat or the abutment portion, and at least one fixing hole corresponding to the fixing post is provided at the rear end of the blade, and the fixing post is inserted into the corresponding fixing hole.

[0027] Preferably, a cover is snapped onto the rear end of the housing, and a limiting protrusion is provided on the side wall of the cover; the strip hole passes through the rear end of the housing.

[0028] When the cover is placed over the rear end of the housing, the limiting protrusion is positioned inside the strip hole.

[0029] Preferably, the marker device includes:

[0030] The second housing has a receiving groove, and a limiting opening is provided on the side wall of the receiving groove, the limiting opening passing through the opening of the receiving groove;

[0031] The marker body is detachably installed in the receiving groove, and a limiting part is provided on the rear side wall of the marker body;

[0032] When the rear end of the marker body is inserted into the receiving groove, the limiting part is placed in the limiting opening, and the front end of the marker body can be located outside or inside the receiving groove.

[0033] Preferably, the rear end of the housing two is snapped with a cover two, and the side wall of the cover two is provided with a limiting protrusion two and a snapping protrusion; the side wall of the housing two is provided with a limiting groove and a snapping hole;

[0034] When the cover is placed on the rear end of the housing, the limiting protrusion is placed in the limiting groove, and the snap-fit ​​protrusion slides inside the housing and is placed in the snap-fit ​​hole.

[0035] The key and beneficial technical effects of this technical solution compared to existing technologies are:

[0036] 1. This technical solution uses a connecting device to connect the cutting tool device and the marker pen device, making the overall functionality more diverse and convenient to carry and store. At the same time, the connecting device uses a connecting rope and / or magnet to facilitate the connection between the two modules of the cutting tool device and the marker pen device, while retaining the flexibility of separating the modules. Users can purchase modules to match themselves or directly purchase two pre-assembled functional modules. This adaptive design meets the scenario-based needs of tool use and improves the functional diversity of tool use.

[0037] 2. The connecting rope of this technical solution can be used for suspension, making it convenient to hang the product for storage. The magnet and magnetic suction can not only realize the adsorption between the two modules of the knife device and the marker pen device, but also be used to adsorb onto other magnetic surfaces, making it flexible and convenient to use. Attached Figure Description

[0038] Figure 1 This is a schematic diagram of the structure of Embodiment 1.

[0039] Figure 2 This is an exploded view of the magnet and magnetic suction component in Example 1.

[0040] Figure 3This is an exploded view of the cutting tool device in Embodiment 1.

[0041] Figure 4 This is an exploded view of the blade, drive unit, and drive base of Embodiment 1.

[0042] Figure 5 This is an exploded view of the marker pen device in Embodiment 1.

[0043] Figure 6 This is a structural schematic diagram of the marker pen device in use according to Embodiment 1.

[0044] Figure 7 This is an exploded view of the cover body 2 and the shell body 2 in Embodiment 1.

[0045] Figure 8 This is a cross-sectional view of the cutting tool device in Embodiment 1.

[0046] Figure 9 This is a schematic diagram of the cutting tool device in Embodiment 2.

[0047] Reference numerals: 1. Cutting device; 11. Housing 1; 110. Protrusion 1; 111. Mounting groove 1; 112. Opening; 113. Strip hole; 114. Limiting groove 1; 115. Limiting groove 2; 12. Blade; 121. Fixing hole; 122. Rotation limiting part; 13. Driving component; 131. Driving part; 132. Sliding part; 133. Abutting part; 134. Buckle; 14. Driving base; 141. Fixing post; 142. Locking hole; 15. Cover 1; 151. Limiting protrusion 1;

[0048] 2. Marker pen device; 21. Housing 2; 210. Protrusion 2; 211. Mounting groove 2; 212. Receiving groove; 213. Limiting port; 214. Limiting groove; 215. Snap-fit ​​hole; 22. Marker pen body; 221. Limiting part; 23. Cover 2; 231. Limiting protrusion 2; 232. Snap-fit ​​protrusion;

[0049] 3. Connecting device; 31. Connecting rope; 32. Magnetic attraction mechanism; 33. Magnet; 34. Magnetic attraction component. Detailed Implementation

[0050] The specific implementation of this technical solution will be further described in detail below with reference to the accompanying drawings. See also Figures 1-9 .

[0051] Example 1:

[0052] Combination Figure 1 and Figure 2 A box opener, comprising:

[0053] The tool consists of a cutting tool device 1, a marker pen device 2, and a connecting device 3. The connecting device 3 connects the cutting tool device 1 and the marker pen device 2, allowing the two separate modules to form a complete tool. This makes it convenient to carry and use, avoids the loss of individual modules, and improves the versatility of functions. Users can choose the corresponding modules to match according to their actual needs, such as matching two cutting tool devices 1 or two marker pen devices 2, or matching one cutting tool device 1 and one marker pen device 2, thus improving the flexibility of use.

[0054] The connecting device 3 includes: a connecting rope 31 and / or a magnetic attraction mechanism 32, that is, the connecting device 3 includes a connecting rope 31 or a magnetic attraction mechanism 32, or the connecting device 3 includes a connecting rope 31 and a magnetic attraction mechanism 32.

[0055] The two ends of the connecting rope 31 are respectively connected to the rear ends of the cutting tool device 1 and the marker pen device 2, thereby realizing the connection between the cutting tool device 1 and the marker pen device 2. A connecting hole is opened at the rear end of both the cutting tool device 1 and the marker pen device 2. The two ends of the connecting rope 31 pass through the corresponding connecting hole and extend into the corresponding cutting tool device 1 and marker pen device 2. Then, the connecting rope 31 is prevented from detaching by connecting anti-detachment parts or tying knots at the ends of the connecting rope 31 located inside the corresponding cutting tool device 1 and marker pen device 2.

[0056] like Figure 2 The magnetic attraction mechanism 32 includes a magnet 33 and a magnetic attractor 34. The magnet 33 and the magnetic attractor 34 are magnetically attracted to each other. The magnet 33 is made of permanent magnet materials such as neodymium iron boron alloy and samarium cobalt alloy. It has permanent magnetism and can actively attract magnetic materials such as iron, cobalt and nickel, as well as be attracted by other magnetic materials. The magnetic attractor 34 can be made of the same permanent magnet material as the magnet 33 (so that the magnet 33 and the magnetic attractor 34 have bidirectional magnetic attraction), or the magnetic attractor 34 can be made of soft magnetic materials such as iron and low carbon steel that can only be attracted by magnetic materials (that is, it can only be attracted by the magnet 33 and cannot actively attract other metal objects). The combination of the magnet 33 and the magnetic attractor 34 must satisfy that at least one of them is a permanent magnet material to achieve the attraction cooperation.

[0057] In this technical solution, both the magnet 33 and the magnetic suction component 34 are made of magnets.

[0058] Magnet 33 is installed on the side wall of the cutting tool device 1, and magnetic suction component 34 is installed on the side wall of the marker pen device 2, or magnet 33 is installed on the side wall of the marker pen device 2 and magnetic suction component 34 is installed on the side wall of the cutting tool device 1; the connection between the cutting tool device 1 and the marker pen device 2 is achieved by the attraction of magnet 33 and magnetic suction component 34, and the connecting rope 31 can be used for suspension. At the same time, magnet 33 and magnetic suction component 34 can be attracted to other magnetic objects, thereby realizing the storage of cutting tool device 1 and marker pen device 2.

[0059] At least one mounting groove 111 is provided on the side wall of the housing 11 of the cutting tool device 1. The magnet 33 is installed in the mounting groove 111, and the magnet 33 is also connected to the mounting groove 111 by adhesive.

[0060] At least one mounting groove 211 is provided on the side wall of the housing 21 of the marker device 2. The magnetic component 34 is installed in the mounting groove 211 and is also connected to the mounting groove 211 by adhesive.

[0061] Combination Figure 1 and Figure 2 The housing 11 and housing 21 adopt a columnar structure. At least one protrusion 110 is provided on the side wall of housing 11, and a mounting groove 111 is provided on the protrusion 110. The opening of the mounting groove 111 is flat. The protrusion 110 ensures the depth of the mounting groove 111, thereby ensuring that the magnet 33 can be stably installed in the mounting groove 111. Similarly, at least one protrusion 210 is provided on the side wall of housing 21, and a mounting groove 211 is provided on the protrusion 210. The opening of the mounting groove 211 is flat. The protrusion 210 ensures the depth of the mounting groove 211. At the same time, the protrusion 110 and the protrusion 210 can ensure the stability of the magnet 33 and the magnetic suction component 34 when they are attracted to each other, thereby ensuring the stability of the connection between the tool device 1 and the marker device 2.

[0062] Combination Figure 3 and Figure 4 The cutting tool device 1 includes:

[0063] The shell 11 is a columnar structure. The front end of the shell 11 has an opening 112, and the side wall of the shell 11 has a strip-shaped hole 113 along its length.

[0064] The blade 12 is slidably disposed within the housing 11, and the front end of the blade 12 can extend out of or retract into the housing 11 through the opening 112;

[0065] The drive component 13 is slidably disposed on the housing 11, and the drive component 13 extends into the housing 11 through the strip hole 113 and is connected to the blade 12.

[0066] The drive component 13 is driven by external force to slide within the slot 113, thereby causing the blade 12 to slide within the housing 11. This allows the blade 12 to extend outside the housing 11 or retract inside the housing 11, enabling the blade 12 to extend for cutting or retract to avoid scratching the user.

[0067] A limiting groove 114 is provided on the side wall of the strip hole 113; the driving member 13 can be engaged or disengaged from the limiting groove 114; when the driving member 13 is engaged with the limiting groove 114, the blade 12 is kept inside the housing 11, so as to prevent the blade 12 from accidentally extending and scratching the user.

[0068] At least one limiting groove 115 is provided on the side wall of the strip hole 113. The limiting groove 114 and the limiting groove 115 are arranged sequentially along the length direction of the strip hole 113, and the limiting groove 115 is closer to the opening 112 than the limiting groove 114. The driving member 13 can be engaged with or disengaged from the limiting groove 115.

[0069] In this embodiment, two limiting grooves 115 are provided. When the driving member 13 is engaged with the limiting groove 115 located near the limiting groove 114, the distance of the front end of the blade 12 can ensure that the tape on the carton is cut without scratching the items inside the carton. When the driving member 13 is engaged with the limiting groove 115 located away from the limiting groove 114, the front end of the blade 12 can be fully extended out of the housing 11.

[0070] Combination Figure 3 , Figure 4 and Figure 8 The driving component 13 includes an integrally formed driving part 131, a sliding part 132, and an abutting part 133. The driving part 131 is located outside the housing 11 and is used for pressing and pushing by the user. The sliding part 132 is slidably disposed in the strip hole 113. The two ends of the sliding part 132 are respectively connected to the driving part 131 and the abutting part 133. The abutting part 133 is engaged with the driving seat 14. The abutting part 133 is engaged with the driving seat 14 through the buckle 134 and the buckle hole 142 of the driving seat 14. The rear end of the blade 12 is engaged between the driving seat 14 and the abutting part 133, so that the blade 12 is installed on the driving component 13.

[0071] The rear end of the blade 12 is fixed to the drive seat 14 by the abutment part 133. Specifically, the lower end of the abutment part 133 and the upper end of the blade 12 can be connected by adhesive, and the upper end of the drive seat 14 and the lower end of the blade 12 can be connected by adhesive. Alternatively, after the abutment part 133 and the drive seat 14 are engaged, there is a clamping space between the abutment part 133 and the drive seat 14 for the rear end of the blade 12 to be inserted. The blade 12 is fixed by the clamping force between the abutment part 133 and the drive seat 14.

[0072] Or, combine Figure 3 and Figure 4This technical solution employs at least one fixing post 141 on the drive seat 14 or the abutment part 133, and at least one fixing hole 121 corresponding to the fixing post 141 is provided at the rear end of the blade 12. The fixing post 141 is inserted into the corresponding fixing hole 121, and the abutment part 133 is placed above the fixing post 141 to prevent the blade 12 from falling off the fixing post 141, that is, to prevent the blade 12 from detaching from the drive seat 14 or the abutment part 133. The number of fixing posts 141 can be set to multiple, thereby ensuring that the blade 12 is more stable after installation and preventing the blade 12 from moving. In this embodiment, a fixing post 141 is provided on the drive seat 14. When the fixing post 141 is inserted into the fixing hole 121, the rotation limiting part 122 of the blade 12 abuts against the front end of the side wall of the drive seat 14, and the rear end side wall of the blade 12 abuts against the side end of the side wall of the drive seat 14, thereby restricting the rotation of the blade 12 on the drive seat 14.

[0073] A snap-fit ​​protrusion and a connecting strip are provided on the side wall of the sliding part 132. The snap-fit ​​protrusion can snap into the second limiting groove 115 or the first limiting groove 114. When the driving member 13 moves under external force, the connecting strip can undergo elastic deformation to ensure that the snap-fit ​​protrusion disengages from the second limiting groove 115 or the first limiting groove 114. The elastic snap-fit ​​protrusion is connected to the side wall of the sliding part 132 by the connecting strip. Both sides of the snap-fit ​​protrusion have guide surfaces or the snap-fit ​​protrusion is a hemisphere, thereby guiding the snap-fit ​​protrusion to slide at the opening of the second limiting groove 115 or the first limiting groove 114 and disengage from the second limiting groove 115 or the first limiting groove 114.

[0074] The rear end of the housing 11 is fitted with a cover 15. A connecting hole is provided in the middle of the cover 15. One end of the connecting rope 31 is connected to the connecting hole. A limiting protrusion 151 is provided on the side wall of the cover 15. A strip hole 113 passes through the rear end of the housing 11, so that the sliding part 132 can slide in the strip hole 113. When the cover 15 is placed on the rear end of the housing 11, the limiting protrusion 151 is placed in the strip hole 113 to prevent the cover 15 from rotating on the housing 11.

[0075] Combination Figure 5 and Figure 6 The marker device 2 includes:

[0076] The second shell 21 is a columnar structure. The second shell 21 has a receiving groove 212. The side wall of the receiving groove 212 is provided with a limiting port 213. The limiting port 213 passes through the opening of the receiving groove 212, that is, the limiting port 213 passes through the front end of the second shell 21.

[0077] The marker body 22 is detachably installed in the receiving groove 212, and a limiting part 221 is provided on the rear side wall of the marker body 22.

[0078] When the rear end of the marker body 22 is inserted into the receiving groove 212, the limiting part 221 is placed in the limiting opening 213, and the front end of the marker body 22 can be located outside or inside the receiving groove 212.

[0079] When the marker pen device 2 is in the storage state, the front end of the marker pen body 22 is first inserted into the receiving groove 212, and then the limiting part 221 at the rear end of the marker pen body 22 is inserted into the limiting opening 213. At this time, the front end of the marker pen body 22 is located inside the receiving groove 212.

[0080] When the marker pen device 2 is in use, by taking out the marker pen body 22, the rear end of the marker pen body 22 is inserted into the receiving groove 212, and the limiting part 221 is inserted into the limiting port 213. At this time, the front end of the marker pen body 22 is located outside the receiving groove 212, and the housing 21 can serve as the pen body for the user to hold. In practice, the marker pen body 22 can also be used independently.

[0081] like Figure 7 The rear end of the housing 21 is snapped with the cover 23. The side wall of the cover 23 is provided with a limiting protrusion 231 and a snapping protrusion 232; the side wall of the housing 21 is provided with a limiting groove 214 and a snapping hole 215.

[0082] When the cover 23 is placed on the rear end of the housing 21, the limiting protrusion 231 is placed in the limiting groove 214, and the connection between the snap protrusion 232 and the housing 21 is deformed so that the snap protrusion 232 slides on the inner side wall of the housing 21 and is placed in the snap hole 215.

[0083] Example 2:

[0084] The design scheme of this embodiment is basically the same as that of Embodiment 1, except that:

[0085] like Figure 9 As shown, the sidewall of the strip hole 113 does not have a limiting groove 114 and a limiting groove 115. The driving member 13 is slidably disposed in the strip hole 113. The driving member 13 is kept in the set state by the friction between the driving member 13 and the strip hole 113 or by the external force applied to the driving member 13 by the user.

[0086] Example 3:

[0087] The design scheme of this embodiment is basically the same as that of Embodiment 1 or Embodiment 2, except that:

[0088] A U-shaped groove is provided inside the housing 11. The front end of the U-shaped groove is connected to the opening 112. The blade 12 is parallel to the bottom of the groove and is slidably disposed in the U-shaped groove. The U-shaped groove can ensure that the front end of the blade 12 extends out of the housing 11 through the opening 112.

[0089] The foregoing has shown and described the basic principles, main features, and advantages of this technical solution. Those skilled in the art should understand that this technical solution is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this technical solution. Various changes and modifications can be made to this technical solution without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed technical solution. The scope of protection of this technical solution is defined by the appended claims and their equivalents.

[0090] It should be noted that the structures, proportions, and sizes depicted in the accompanying drawings are solely for illustrative purposes and to aid those skilled in the art in understanding and reading the content disclosed herein. They are not intended to limit the implementation of this technical solution and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, provided they do not affect the effectiveness or purpose of this technical solution, should still fall within the scope of the technical content disclosed herein. Furthermore, the terms used in this specification, such as "upper," "lower," "left," "right," "middle," and "one," are merely for clarity and not intended to limit the scope of implementation of this technical solution. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the technical solution's implementation.

[0091] It should also be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or may be connected to an intermediary component. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or indirectly connected to the other component through an intermediary component.

[0092] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

Claims

1. A box opener, characterized in that, include: The tool device (1), the marker device (2) and the connecting device (3) are connected to the tool device (1) and the marker device (2). The connecting device (3) includes: a connecting rope (31) and / or a magnetic attraction mechanism (32). The two ends of the connecting rope (31) are respectively connected to the rear ends of the cutting tool device (1) and the marker pen device (2); The magnetic attraction mechanism (32) includes a magnet (33) and a magnetic attractor (34). The magnet (33) and the magnetic attractor (34) are magnetically attracted. The magnet (33) is installed on the side wall of the cutting tool device (1), and the magnetic attractor (34) is installed on the side wall of the marker pen device (2).

2. The box opener according to claim 1, characterized in that: At least one mounting groove (111) is provided on the side wall of the housing (11) of the cutting tool device (1), and the magnet (33) is installed in the mounting groove (111). At least one mounting groove (211) is provided on the side wall of the housing (21) of the marker device (2), and the magnetic suction member (34) is installed in the mounting groove (211).

3. A box opener according to claim 2, characterized in that: At least one protrusion (110) is provided on the side wall of the housing (11), and the mounting groove (111) is provided on the protrusion (110). At least one protrusion (210) is provided on the side wall of the housing (21), and the mounting groove (211) is provided on the protrusion (210).

4. A box opener according to any one of claims 1-3, characterized in that: The cutting tool device (1) includes: The first shell (11) has an opening (112) at its front end, and the side wall of the first shell (11) has a strip hole (113) along its length. The blade (12) is slidably disposed within the housing (11), and the front end of the blade (12) extends out of the housing (11) through the opening (112). A drive member (13) is slidably disposed on the housing (11), and the drive member (13) extends into the housing (11) through the strip hole (113) and is connected to the blade (12). The blade (12) slides within the housing (113) by the sliding of the drive member (13), thereby enabling the blade (12) to extend or retract relative to the housing (11).

5. A box opener according to claim 4, characterized in that: A limiting groove (114) is provided on the side wall of the strip hole (113). The driving component (13) can engage or disengage from the limiting groove (114); At least one limiting groove two (115) is provided on the side wall of the strip hole (113), and the limiting groove one (114) and the limiting groove two (115) are arranged sequentially along the length direction of the strip hole (113). The driving component (13) can engage or disengage from the limiting groove (115).

6. A box opener according to claim 4, characterized in that: The driving component (13) includes a driving part (131), a sliding part (132) and an abutting part (133). The driving part (131) is located outside the housing (11). The sliding part (132) is slidably disposed in the strip hole (113). The abutting part (133) is connected to a driving seat (14). The rear end of the blade (12) is fixed on the driving seat (14) through the abutting part (133).

7. A box opener according to claim 6, characterized in that: At least one fixing post (141) is provided on the drive seat (14) or the abutment part (133), and at least one fixing hole (121) corresponding to the fixing post (141) is provided at the rear end of the blade (12), and the fixing post (141) is inserted into the corresponding fixing hole (121).

8. A box opener according to claim 4, characterized in that: The rear end of the housing (11) is snapped with a cover (15), and the side wall of the cover (15) is provided with a limiting protrusion (151); the strip hole (113) passes through the rear end of the housing (11). When the cover (15) is placed over the rear end of the housing (11), the limiting protrusion (151) is placed inside the strip hole (113).

9. A box opener according to claim 1, 2, 3, 5, 6, 7, or 8, characterized in that: The marker device (2) includes: The second housing (21) has a receiving groove (212) and a limiting port (213) is provided on the side wall of the receiving groove (212). The limiting port (213) passes through the opening of the receiving groove (212). The marker body (22) is detachably installed in the receiving groove (212), and a limiting part (221) is provided on the rear side wall of the marker body (22). When the rear end of the marker body (22) is inserted into the receiving groove (212), the limiting part (221) is placed in the limiting opening (213), and the front end of the marker body (22) can be located outside or inside the receiving groove (212).

10. A box opener according to claim 9, characterized in that: The rear end of the second housing (21) is snapped with a second cover (23), and the side wall of the second cover (23) is provided with a limiting protrusion (231) and a snap-fit ​​protrusion (232); the side wall of the second housing (21) is provided with a limiting groove (214) and a snap-fit ​​hole (215). When the cover body two (23) is placed on the rear end of the housing two (21), the limiting protrusion two (231) is placed in the limiting groove (214), and the snap-fit ​​protrusion (232) slides inside the housing two (21) and is placed in the snap-fit ​​hole (215).

Images