A hand-held portion reinforced packaging box
Patent Information
- Application Number
- CN202522183295.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-15
- Publication Date
- 2026-09-08
- Estimated Expiration
- 2035-10-15
AI Technical Summary
[0003]但是现有的包装盒，整体的强度较差，在使用的过程中容易出现断裂的情况，而且把手通常只有单面厚度，不能够保证把手的使用强度
[0010] Preferably, the first and second handles are provided with carrying openings. The inner edge of the carrying opening can be designed to be slightly inclined or have an anti-slip texture, so that the fingers and the handle form a tighter grip friction surface, reducing the risk of slipping due to sweat or vibration, which is especially safer and more reliable when carrying heavy objects or moving long distances.
Smart Images
Figure CN224727448U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a packaging box with reinforced handles, belonging to the field of packaging boxes. Background Technology
[0002] Packaging boxes are boxes used to package products. They can be classified by material into paper boxes, iron boxes, wooden boxes, leather boxes, etc. Their functions include ensuring the safety of products during transportation and enhancing the product's grade. With the rapid development of modern industry and the continuous improvement of people's living standards, the demand for packaging boxes will continue to increase, and higher requirements will be placed on the quality of packaging boxes.
[0003] However, the existing packaging boxes have poor overall strength and are prone to breakage during use. Moreover, the handles are usually only thick on one side, which cannot guarantee the strength of the handles. Utility Model Content
[0004] The purpose of this invention is to overcome the shortcomings and deficiencies of the existing technology and to provide a packaging box with reinforced handles.
[0005] A reinforced carrying case includes a box body with a first handle and a second handle formed by interlocking at the top. The first handle has a mating hole, and the second handle has a connecting pin fixedly connected to the mating hole. A connecting assembly is provided within the mating hole. After the connecting pin is inserted into the connecting assembly, the first handle and the second handle are fixedly connected. The connecting assembly includes a connecting cavity within the mating hole. A spring is fixedly installed at the bottom of the connecting cavity, and a fixing plate is fixed at the other end of the spring. Three steel balls are provided between the fixing plate and the connecting cavity, forming a gap between the three steel balls for the connecting pin to pass through. After the connecting pin extends into the connecting cavity, the steel balls compress the connecting pin under the elastic force of the spring, forming a tight fit. Traditional packaging boxes usually only have a single handle at the top of the box body, which has limited load-bearing capacity and is prone to stress concentration and breakage when lifted. This utility model interlocks the first and second handles, allowing the two handles to share the entire tensile force, effectively reducing the peak stress on a single handle and improving overall strength and durability. Springs can compensate for manufacturing and assembly gaps, ensuring that all parts are always tightly engaged without loosening. The multi-point contact formed by the steel ball and the pin, coupled with the continuous pressure of the spring, can effectively resist vibration and impact during transportation or use, preventing the handle from falling off.
[0006] Preferably, the outer wall of the connecting pin is provided with a snap-fit groove, which is an arc-shaped groove used to snap into the steel ball to form a tight fit. After the outer wall of the connecting pin is machined into an arc-shaped groove that matches the radius of the steel ball, the steel ball can be accurately embedded in the groove to achieve point-to-point snap-fit. Multi-point engagement significantly enhances the locking force of the pin in the axial and circumferential directions, further preventing the pin from loosening or falling off under heavy loads or vibrations; the arc shape fits closely to the surface of the steel ball, automatically guiding it to the optimal engagement position and simplifying the alignment operation during assembly.
[0007] Preferably, the diameter of the mating hole is smaller than that of the connecting cavity, allowing the connecting pin to be inserted into the mating hole. The smaller diameter of the mating hole ensures that the connecting pin, upon insertion, first receives radial constraint through the mating hole, automatically aligns to the optimal position, and is then advanced into the connecting cavity. This eliminates the need for additional alignment tools, enabling rapid and accurate assembly.
[0008] Furthermore, the top of the connecting cavity is arc-shaped, matching the curvature of the outer wall of the steel ball. This arc-shaped top fits the outer wall of the steel ball, allowing the steel ball to form a larger contact surface with the top of the connecting cavity under the spring preload, avoiding stress concentration at point contact, thus reducing the risk of fatigue cracks and improving structural durability. The arc-shaped design guides the steel ball to roll along the arc during minor displacements or vibrations, replacing sliding friction, reducing localized wear, and extending the service life of the connecting components and pins. With the arc shape perfectly fitting the outer wall of the steel ball, the steel ball, under the dual constraint of spring force and the cavity top, more easily forms a "wrap-around" tight fit, improving tensile and vibration resistance, making the handle connection more robust and reliable.
[0009] Preferably, the connecting pin and the fixing plate are made of magnetic material. A magnetic ring is detachably installed on the second handle. After the magnetic ring is detached, it attracts the fixing plate to move, allowing the steel ball to contact and release the tight fit with the connecting pin, making it easy to pull out. When it is necessary to remove the connecting pin, simply remove the magnetic ring from the second handle. The magnetic force of the ring attracts the fixing plate outward, causing the steel ball to disengage from the arc groove of the connecting pin, thus unloading the spring and allowing the pin to be easily pulled out without additional tools or complicated operations. Under normal circumstances, the magnetic ring is securely hidden inside the second handle and does not affect the connection strength. The magnetic ring is only removed when intentionally disassembling, avoiding accidental loosening due to misoperation, thus balancing stability and maintainability.
[0010] Preferably, the first and second handles are provided with carrying openings. The inner edge of the carrying opening can be designed to be slightly inclined or have an anti-slip texture, so that the fingers and the handle form a tighter grip friction surface, reducing the risk of slipping due to sweat or vibration, which is especially safer and more reliable when carrying heavy objects or moving long distances.
[0011] The beneficial effects of this utility model are as follows: Traditional packaging boxes typically only have a single handle at the top of the box, which has limited load-bearing capacity and is prone to stress concentration and breakage when lifted. This utility model connects the first and second handles together, allowing the two handles to share the entire pulling force, effectively reducing the peak force on a single handle and improving overall strength and durability. The spring can compensate for manufacturing and assembly gaps, ensuring that all parts are always tightly engaged without loosening. The multi-point contact formed by the steel ball and the pin, coupled with the continuous pressure of the spring, can effectively resist vibration and impact during transportation or use, preventing the handle from falling off. Attached Figure Description
[0012] 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, obtaining other drawings based on these drawings without creative effort still falls within the scope of this utility model.
[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the unfolded planar structure of this utility model; Figure 3 This is a schematic diagram of the structure of this utility model without the second handle; Figure 4 This is a schematic diagram of the structure of the present invention, showing the separation of the first handle and the second handle; Figure 5 This is a schematic diagram of the structure of the second handle and the second handle after they are connected. In the diagram, 1 is the box body; 11 is the first handle; 111 is the docking hole; 112 is the connecting cavity; 113 is the spring; 114 is the fixing plate; 115 is the steel ball; 12 is the second handle; 121 is the connecting pin; 122 is the snap-fit groove; 123 is the magnetic ring; and 124 is the carrying handle. Detailed Implementation
[0014] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be described in further detail below with reference to the accompanying drawings.
[0015] It should be noted that all uses of "first" and "second" in the embodiments of this utility model are for the purpose of distinguishing two entities or parameters with the same name but different names. It is clear that "first" and "second" are only for the convenience of expression and should not be construed as limiting the embodiments of this utility model. Subsequent embodiments will not explain this in detail.
[0016] The directional and positional terms used in this utility model, such as "up," "down," "front," "back," "left," "right," "inner," "outer," "top," "bottom," and "side," are merely for reference to the accompanying drawings. Therefore, the directional and positional terms used are for the purpose of explaining and understanding this utility model, and not for limiting the scope of protection of this utility model.
[0017] like Figure 1-5 The illustration shows an embodiment of a packaging box with reinforced handles according to the present invention. It includes a box body 1. The top of the box body 1 has a first handle 11 and a second handle 12 formed by mating and joining. The first handle 11 has a mating hole 111, and the second handle 12 has a connecting pin 121 fixedly connected to the mating hole 111. A connecting component is provided within the mating hole 111. The connecting pin 121 is inserted into the connecting component within the mating hole 111, thus fixing the first handle 11 and the second handle 12 together. The connecting assembly includes a connecting cavity 112 located within the mating hole 111. A spring 113 is fixedly mounted at the bottom of the connecting cavity 112, and a fixing plate 114 is fixed to the other end of the spring 113. Three steel balls 115 are positioned between the fixing plate 114 and the connecting cavity 112, forming a gap between the three steel balls 115 for the passage of a connecting pin 121. After the connecting pin 121 extends into the connecting cavity 112, the steel balls 115 compress the connecting pin 121 under the elastic force of the spring 113, forming a tight fit. Traditional packaging boxes typically only have a single handle on the top of the box body 1, which has limited load-bearing capacity and is prone to stress concentration and breakage when lifted. This utility model connects and splices the first handle 11 and the second handle 12, allowing the two handles to share the entire pulling force, effectively reducing the peak force on a single handle and improving overall strength and durability. Spring 113 can compensate for manufacturing and assembly gaps, ensuring that all parts are always tightly engaged without loosening. The multi-point contact formed by steel ball 115 and pin, coupled with the continuous pressure of spring 113, can effectively resist vibration and impact during transportation or use, and prevent the handle from falling off.
[0018] The outer wall of the connecting pin 121 is provided with a snap-fit groove 122, which is an arc-shaped groove used to snap into the steel ball 115 to form a tight fit. After the outer wall of the connecting pin 121 is machined into an arc-shaped groove that matches the radius of the steel ball 115, the steel ball 115 can be accurately embedded in the groove to achieve point-to-point snap-fit. Multi-point engagement significantly enhances the locking force of the pin in the axial and circumferential directions, further preventing the pin from loosening or falling off under heavy load or vibration; the arc shape fits tightly against the surface of the steel ball 115, and can automatically guide it to the optimal engagement position, simplifying the alignment operation during assembly.
[0019] The diameter of the mating hole 111 is smaller than that of the connecting cavity 112, and it is used for inserting the connecting pin 121 into the mating hole 111. The smaller diameter of the mating hole 111 compared to the connecting cavity 112 allows the connecting pin 121 to first obtain radial constraint through the mating hole 111 during insertion, automatically aligning to the optimal position before being pushed into the connecting cavity 112. This eliminates the need for additional alignment tools, enabling fast and accurate assembly.
[0020] The top of the connecting cavity 112 is arc-shaped, matching the curvature of the outer wall of the steel ball 115. This arc-shaped top fits the outer wall of the steel ball 115, allowing the steel ball 115 to form a larger contact surface with the top of the connecting cavity 112 under the preload of the spring 113. This avoids stress concentration at point contact, thereby reducing the risk of fatigue cracks and improving structural durability. The arc-shaped design guides the steel ball 115 to roll along the arc during minor displacements or vibrations, replacing sliding friction, reducing localized wear, and extending the service life of the connecting components and pins. With the arc shape perfectly fitting the outer wall of the steel ball 115, the steel ball 115, under the dual constraint of the spring 113 force and the cavity top, more easily forms a "wrap-around" tight fit, improving tensile and vibration resistance, making the handle connection more robust and reliable.
[0021] In this embodiment, unlike the previous embodiment, the connecting pin 121 and the fixing plate 114 are made of magnetic material. A magnetic ring 123 is detachably installed on the second handle 12. After the magnetic ring 123 is detachable, it attracts the fixing plate 114 to move, allowing the steel ball 115 to contact and release the tight fit with the connecting pin 121, making it easy to pull out. When it is necessary to disassemble the connecting pin 121, simply remove the magnetic ring 123 from the second handle 12. The magnetic force of the ring attracts the fixing plate 114 to move outward, causing the steel ball 115 to disengage from the arc groove of the connecting pin 121, thus unloading the spring 113. The pin can then be easily pulled out without additional tools or complicated operations. Under normal circumstances, the magnetic ring 123 is securely hidden inside the second handle 12, without affecting the connection strength. The magnetic ring is only removed when intentionally disassembling, avoiding accidental loosening due to misoperation, thus balancing stability and maintainability.
[0022] The first handle 11 and the second handle 12 are provided with a carrying opening 124. The inner edge of the carrying opening 124 can be designed to be slightly inclined or have an anti-slip texture, so that the fingers and the handle form a tighter grip friction surface, reducing the risk of slipping due to sweat or vibration, which is especially safer and more reliable when carrying heavy objects or moving long distances.
[0023] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the claims of the present utility model shall still fall within the scope of the present utility model.
[0024] Although the present invention has been described with reference to several specific embodiments, it should be understood that the present invention is not limited to the specific embodiments disclosed. The present invention is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.
Claims
1. A packaging box with reinforced handles, characterized in that: The device includes a box body. The top of the box body has a first handle and a second handle formed by mating and splicing. The first handle has a mating hole, and the second handle has a connecting pin that is fixedly connected to the mating hole. A connecting component is provided in the mating hole. After the connecting pin is inserted into the connecting component in the mating hole, the first handle and the second handle are fixedly connected. The connecting component includes a connecting cavity provided in the mating hole. A spring is fixedly provided at the bottom of the connecting cavity. A fixing plate is fixed at the other end of the spring. Three steel balls are provided between the fixing plate and the connecting cavity. A gap is formed between the three steel balls for the connecting pin to pass through. After the connecting pin extends into the connecting cavity, the steel balls squeeze the connecting pin under the elastic force of the spring to form a tight fit.
2. The packaging box with reinforced handle as described in claim 1, characterized in that: The outer wall of the connecting pin is provided with a snap-fit groove, which is an arc-shaped groove used to snap with the steel ball to form a tight fit.
3. The packaging box with reinforced handle as described in claim 1, characterized in that: The diameter of the mating hole is smaller than that of the connecting cavity, and it is used to insert the connecting pin into the mating hole.
4. The packaging box with reinforced handle as described in claim 3, characterized in that: The top of the connecting cavity is an arc shape that matches the curvature of the outer wall of the steel ball.
5. The packaging box with reinforced handle as described in claim 1, characterized in that: The connecting pin and the fixing plate are made of magnetic material. A magnetic ring is detachably installed on the second handle. After the magnetic ring is detached, it attracts the fixing plate to move, so that the steel ball can contact and release the tight fit with the connecting pin, and can be pulled out.
6. The packaging box with reinforced handle as described in claim 1, characterized in that: The first and second handles are equipped with carrying ports.