Express box opening knife
By designing a package opener with a combination of long and short handles and an obtuse-angled inverted triangular blade, the problems of existing tools being awkward to use and having poor safety are solved, achieving a safe, smooth, and efficient package opening effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 鲁东胜
- Filing Date
- 2025-05-30
- Publication Date
- 2026-04-17
AI Technical Summary
Existing knives or scissors are not convenient to use when opening packages, and can easily slip into the package, damaging items or injuring users, and are also unsafe.
Design a package opener knife with a handle made of a long handle and a short handle in one piece. The blade is an obtuse inverted triangle with the tip pointing downwards. It is combined with the blade holder for limiting the movement and is adapted to the user's grip habits and opening posture. It is made of stainless steel or engineering plastic.
It enables safe, smooth, and efficient unpacking operations, reduces hand fatigue, and protects the safety of items and users.
Smart Images

Figure CN224129837U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of express delivery unpacking tools, specifically an express delivery box opener. Background Technology
[0002] Online shopping has become ubiquitous in most households, with corrugated cardboard boxes accounting for more than half of the packaging. Currently, when consumers use knives or scissors to open boxes, there are several problems: inconvenience (the handles are difficult to grip; and the knives or scissors can easily slip into the box through the opening, making them difficult to remove) and safety (scissors can easily slip into the box through the opening, damaging the items; or forceful pulling can cause the knife or scissors to slip too smoothly and not stop in time, resulting in cuts to the user). Therefore, we are providing a box opener that is smooth to open and less likely to cause injury. Utility Model Content
[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a package opener to solve the problems mentioned in the background.
[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:
[0005] This utility model provides a package opener, including a handle, a base, and a blade. The handle is provided on the top surface of the base, and the blade is provided on the bottom surface of the base, forming a package opener. The handle is integrally formed by a long handle and a short handle, and one end of the short handle is connected to the center of the upper surface of the base.
[0006] The front of the blade is an obtuse inverted triangle, with the obtuse angle tip pointing downwards. The first and second short sides of the blade are designated as the cutting edge.
[0007] Preferably, the long handle is located on the right side of the tool holder; the short handle is inclined to the right side of the tool holder, and the angle α between the short handle and the tool holder is acute, with the angle α ranging from 45° to 90°; the angle θ between one end of the long handle and the other end of the short handle is obtuse, with the angle θ ranging from 90° to 180°. This is to adapt to the user's grip habits and opening posture according to the user's hand force application method and opening angle, making the opening action more natural and smooth, effectively reducing hand fatigue caused by long-term opening operations, and greatly improving the comfort and convenience of opening operations.
[0008] Preferably, the blade has an isosceles inverted triangle cross-section, wherein the top surface of the blade is connected to the middle of the lower surface of the blade holder.
[0009] Preferably, the overall length of the box opener is 13-14 cm; the box opener is made of stainless steel or engineering plastic.
[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: the express delivery box opener of this utility model has a beautiful and elegant appearance, and is safe and smooth to use, as detailed below:
[0011] (1) By setting a blunt-angled inverted triangular blade with the tip pointing downwards and having front and rear blades, the sharp blunt tip can quickly pierce the surface of the packaging box (or the tape seal). With the blades on both sides, combined with the blade holder with the bottom surface attached to the surface of the express box, it can smoothly cut along the packaging seam. The limiting effect of the base prevents the box opener from sliding into the express box through the cut gap, thus achieving safe, smooth and efficient box opening. It solves the problem of inconvenience and insecurity when using a knife or scissors to open the box.
[0012] (2) The inclined L-shaped handle, which is composed of a long handle and a short handle, not only extends the grip length, but also adapts to the user's grip habits and opening posture, making it easier for the user to hold the knife, making the opening action more natural and smooth, effectively reducing hand fatigue caused by long-term opening operations, and greatly improving the comfort and convenience of opening operations. Attached Figure Description
[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0014] Figure 1 A schematic diagram of the structure of a package opener provided in this embodiment of the present utility model;
[0015] Figure 2 for Figure 1 Top view;
[0016] Figure 3 for Figure 1 The left view;
[0017] Figure 4 for Figure 1 The right view.
[0018] Explanation of reference numerals in the attached figures:
[0019] 1. Handle; 2. Tool holder; 3. Blade;
[0020] 101. Long-handled rod; 102. Short-handled rod;
[0021] 301, the first short side; 302, the second short side. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Example 1, such as Figures 1 to 4 As shown, a package opener includes a handle 1, a blade holder 2, and a blade 3. The handle 1 is located on the top surface of the blade holder 2, and the blade 3 is located on the bottom surface of the blade holder 2, forming a package opener. The handle 1 is integrally formed from a long handle 101 and a short handle 102, and as shown... Figure 1 As shown, one end of the short shank 102 is connected to the center of the upper surface of the tool holder 2;
[0024] Among them, such as Figure 1 As shown, the front of the blade 3 is an obtuse-angled inverted triangle, with the obtuse angle tip pointing downwards. The first short side 301 and the second short side 302 of the blade 3 are set as the cutting edge (e.g., Figure 1 , Figure 3 , Figure 4 As shown), it is used to quickly pierce the surface of the packaging with its sharp, blunt-angled tip, while the two blades on both sides can smoothly cut along the packaging seams to achieve smooth and efficient opening; the bottom surface of the blade holder 2 is used to fit against the surface of the express box and acts as a baffle to limit the movement and prevent the opening knife from sliding into the express box through the cut gap.
[0025] In addition, such as Figure 1 and Figure 2 As shown, the tool holder 2 in this embodiment is a rectangular sheet. To improve the aesthetics, arc-shaped grooves can be made to the right at the two corners on the left end of the tool holder 2, and rounded corners can be made at the two corners on the right end of the tool holder 2. In other embodiments, the shape of the tool holder 2 can be adapted to actual needs. To improve safety, the sharp corners of the tool holder 2 can be rounded. The specific details will not be described in detail here.
[0026] Furthermore, such as Figure 1 and Figure 2 As shown, the long shank 101 is located on the right side of the tool holder 2 (taking the usage state as a reference, that is, the long shank extends towards the rear of the tool holder); as Figure 1As shown, the short handle 102 is inclined to the right of the tool holder 2, and the angle α between the short handle 102 and the tool holder 2 is an acute angle, with the size of the angle α being between 45° and 90°; the angle θ between one end of the long handle 101 and the other end of the short handle 102 is an obtuse angle, with the size of the angle θ being between 90° and 180°. This is used to adapt to the user's grip habits and opening posture according to the user's hand force application method and opening angle, making the opening action more natural and smooth, effectively reducing hand fatigue caused by long-term opening operations, and greatly improving the comfort and convenience of opening operations.
[0027] Furthermore, such as Figure 3 and Figure 4 As shown, the cross-section of the blade 3 is an isosceles inverted triangle, wherein the top surface of the blade 3 (i.e., the longest side of the blade 3 in the inverted triangle) is connected to the middle of the lower surface of the blade holder 2.
[0028] In this embodiment, the height of the blade 3 is set between 3 and 8 mm to prevent the blade tip from penetrating deep into the box, effectively reducing the risk of damage to the items inside the box during the unpacking process and better protecting the integrity of the goods purchased by the user. In other embodiments, the height of the blade can be adjusted according to the actual use case, which will not be described in detail here.
[0029] Furthermore, such as Figure 1 As shown, the overall length of the box opener is 13-14cm; the box opener is made of stainless steel or engineering plastic.
[0030] It should be noted that in this embodiment, the handle 1, the blade holder 2, and the blade 3 are all made of metal materials, including but not limited to stainless steel. Furthermore, the handle 1 and the blade holder 2 are connected by welding, and the blade holder 2 and the blade 3 are connected by welding, or the handle 1, the blade holder 2, and the blade 3 are die-cast into one piece. This makes the connection between the handle 1, the blade holder 2, and the blade 3 stable, and the overall structure of the box opener is scientifically and rationally designed, ensuring the structural stability and durability of the box opener.
[0031] In other embodiments, other materials can be selected to manufacture the handle 1, the blade holder 2, and the blade 3 according to actual user needs, and the manufacturing process can be adjusted according to the material adaptability (such as using engineering plastic materials, which can be integrally molded by injection molding, etc.). The specifics will not be described in detail here.
[0032] When using, such as Figure 1As shown, the user holds the long handle 101 with the obtuse-angled tip of the blade 3 pointing downwards. Then, the user aligns the blade 3 with the seam of the express box and presses it down, causing the obtuse-angled tip of the blade 3 to instantly pierce the packaging surface (the contact area between the blade tip and the packaging box is small, making it easier for the blade tip to pierce the packaging surface). At this time, the blade holder 2 acts as a baffle to fit against the surface of the express box, thereby limiting the downward insertion of the blade into the box and preventing the box opener from sliding into the box through the cut gap. Then, using the blade edges of the first short side 301 and the second short side 302, the user can hold the handle and drive the blade to smoothly cut along the packaging seam (the blade cuts open the sealing tape on the top and side seams of the box), achieving smooth and efficient box opening, improving operational safety and reducing the risk of injury.
[0033] Obviously, the above-described embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model. Thus, if these modifications and variations of this utility model fall within the scope of the claims of this utility model and their equivalents, then this utility model also intends to include these modifications and variations.
Claims
1. A parcel box opener comprising a handle (1), a sheath (2) and a blade (3), characterized in that: The top surface of the knife holder (2) is provided with a knife handle (1), and the bottom surface of the knife holder (2) is provided with a blade (3), which together form a box opener; the knife handle (1) is integrally formed by a long handle (101) and a short handle (102), and one end of the short handle (102) is connected to the center of the upper surface of the knife holder (2). The front of the blade (3) is an obtuse inverted triangle, and the obtuse angle tip of the blade (3) is downward. The first short side (301) and the second short side (302) of the blade (3) are set as the cutting edge.
2. The box opener of claim 1, wherein: The long shank (101) is located on the right side of the tool holder (2); the short shank (102) is inclined to the right side of the tool holder (2), and the included angle α between the short shank (102) and the tool holder (2) is an acute angle, with the size of the included angle α being between 45° and 90°; the included angle θ between one end of the long shank (101) and the other end of the short shank (102) is an obtuse angle, with the size of the included angle θ being between 90° and 180°.
3. The box opener of claim 1, wherein: The blade (3) has an isosceles inverted triangle cross-section, wherein the top surface of the blade (3) is connected to the middle of the lower surface of the blade holder (2).
4. The box opener of claim 1, wherein: The overall length of the box opener is 13-14cm; the box opener is made of stainless steel or engineering plastic.