Improved edge tool box
By setting a locking mechanism on the sharps box, and using a rotating disk and connecting rod assembly to push the locking plate to engage with the cardboard, the problem of insufficient sealing of paper sharps boxes is solved, achieving higher sealing performance and bending strength, and preventing sharps from falling out.
Patent Information
- Application Number
- CN202423130644.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-18
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2034-12-18
AI Technical Summary
Existing paper sharps boxes are prone to sharps being exposed or falling out during handling due to gaps in the lid, indicating insufficient sealing.
The locking mechanism, made of plastic, includes a rotating disc, a synchronizing disc, and a linkage assembly. Through the cooperation of the locking plate and the snap-fit cardboard, it achieves tight contact between the cover plate and enhances the structural strength.
The improved sealing of the sharps box prevents sharps from falling out of the gaps during flipping or handling, and the enhanced bending strength of the cover ensures the safety of sharps.
Smart Images

Figure CN223668062U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of medical appliances, in particular to an improved sharp box. BACKGROUND
[0002] The sharp box is a medical storage box used for collecting sharp instruments such as syringes, small glassware, blades, and suture needles. According to the national requirements, the sharp box must be recycled by a medical waste disposal unit within 24 hours and completely incinerated within 48 hours. Therefore, most of the sharp boxes currently use paper boxes.
[0003] The top surface of the existing paper sharp box is usually covered by two paper boards. The middle part of the lower paper board is provided with an opening for placing sharp instruments in the sharp box, and the upper paper board is used to cover the opening. The side surface of the upper paper board is fixed by a straight paper buckle provided on the sharp box body. However, in the actual handling process, the two paper boards of the top surface of the paper sharp box are poorly attached, and a gap is easily formed between the two paper boards. If the paper sharp box is dropped or turned over, the sharp instruments may be exposed from the gap. In addition, the weight in the sharp box is generally 80% of the capacity of the sharp box, and the handle of the sharp box is usually arranged in the middle of the paper board covering the opening. When the sharp box is lifted, the upper paper board is easily bent due to its thinness, which increases the gap between the two paper boards. If the sharp box is turned over, the sharp instruments may fall out of the gap between the two paper boards. CONTENT OF THE UTILITY MODEL
[0004] The technical problem to be solved by the present application is to provide an improved sharp box that can improve the sealing performance of the opening of the sharp box.
[0005] To solve the above technical problem, the present application adopts the following technical solution:
[0006] The improved sharp box comprises a first cover plate and a second cover plate arranged on the top of the sharp box, and further comprises a locking mechanism arranged on the first cover plate. The locking mechanism comprises a rotating disc, the bottom of the rotating disc is provided with a rotating shaft penetrating downward through the first cover plate, the bottom of the rotating shaft is provided with a synchronous disc, the side wall of the synchronous disc is provided with a link assembly, and the end of the link assembly is provided with a locking plate controlled to open or retract.
[0007] In some embodiments, the top surface of the rotating disc is provided with a handle to facilitate the rotation of the locking mechanism and the lifting of the sharp box.
[0008] In some embodiments, the link assembly comprises a short rod and a long rod, the right end of the short rod is connected to the side of the synchronous disc, and the left end of the short rod is hingedly connected to the long rod.
[0009] According to the further development of the above solution, the other end of the long rod of the link assembly is hingedly connected to the left side of the locking plate.
[0010] In some embodiments, the bottom of the synchronous disc is provided with a support plate.
[0011] In order to fix the locking plate and prevent it from moving downward, according to the above scheme, the left side of the locking plate and the top surface of the support plate are hingedly connected.
[0012] In order to evenly distribute the locking force, in some embodiments, a plurality of the connecting rod assemblies and the locking plates are circumferentially and equidistantly distributed on the side edges of the synchronous disc.
[0013] Compared with the prior art, the sharp tool box has at least the following beneficial effects: the first cover plate is covered on the second cover plate, the connecting rod assembly and the locking plate of the locking mechanism are located in the opening of the second cover plate for placing sharp tools, then the rotating disc is rotated, the connecting rod assembly moves to push the locking plate away from the synchronous disc, the top surface of the locking plate and the bottom surface of the second cover plate are clamped in contact, the first cover plate and the second cover plate are tightly contacted through the extrusion of the locking plate and the rotating disc, the sealing performance of the sharp tool box is improved; after the locking mechanism is opened, the first cover plate and the second cover plate are tightly contacted, the thickness is increased, the strength is improved, and the situation that the first cover plate is thin and easy to bend, and the gap between the first cover plate and the second cover plate is increased is avoided, even if the sharp tool box is turned over, the sharp tool cannot fall out of the sharp tool box. BRIEF DESCRIPTION OF DRAWINGS
[0014] One or more embodiments of the present application will now be described, by way of example only, with reference to the accompanying drawings:
[0015] Figure 1 is a top perspective view of the sharp tool box in a closed state of the locking mechanism of an embodiment of the present application;
[0016] Figure 2 is a top perspective view of the sharp tool box in an opened state of the locking mechanism of an embodiment of the present application; Figure 1
[0017] Figure 3 is a perspective view of the sharp tool box in an opened state of the first cover plate and in a closed state of the locking mechanism of the present application;
[0018] Figure 4 is a perspective view of the sharp tool box in an opened state of the first cover plate and in an opened state of the locking mechanism of the present application;
[0019] Figure 5 is a front view of the sharp tool box of the present application.
[0020] The figure marks are: 1, the first cover plate; 2, the rotating disc; 3, the rotating shaft; 4, the synchronous disc; 5, the short rod; 6, the long rod; 7, the locking plate; 8, the support plate; 9, the handle; 10, the clamping paperboard; 11, the box body; 12, the second cover plate; 121, the opening. DETAILED DESCRIPTION
[0021] The application will be described in detail below with reference to the exemplary embodiments in the drawings. It should be understood that the application can be implemented in various different forms and should not be construed as being limited to the embodiments set forth herein. These embodiments are provided to make the disclosure of the application more complete and to fully convey the concept of the application to those skilled in the art.
[0022] In the description of the application, it should be understood that the terms "center", "transverse", "longitudinal", "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the scope of protection of the application.
[0023] To address the shortcomings of existing paper sharps boxes, where gaps allow sharp objects to be exposed or fall out, the inventors, after careful analysis, discovered that the main reason for this problem lies in the fact that the top surface of the paper sharps box is typically covered by two folded cardboard sheets, one in front of the other. The lower cardboard sheet has an opening in the middle for placing the sharps box, while the upper cardboard sheet covers the opening. A snap-fit interface is provided at the junction of the cardboard sheet with the opening and the sharps box. The front end of the cardboard sheet covering the opening has a tab fixed within the snap-fit interface, and the tab has an opening. A paper buckle that can be bent into a right angle is located at the front end of the sharps box, extending into the opening of the tab. However, during actual handling, the cover plate of the paper sharps box is frequently opened and may deform, resulting in poor adhesion between the two cardboard pieces on the top surface. This can easily create gaps between the two pieces, allowing sharp objects to be exposed if the box falls or flips. Furthermore, since the weight inside the sharps box is typically around 80% of its capacity, and the handle is usually located in the middle of the cardboard covering the opening, the thinner top piece is prone to bending when lifting the box, widening the gap between the two pieces. If the box flips, sharp objects may fall through this gap. Additionally, when the cardboard is easily bent, the friction between the paper surfaces can cause the latches and clips that hold the box in place to detach from the two cardboard pieces on the top surface, causing the box to fall off the cover plate and flip, potentially releasing sharp objects from inside. Based on the above analysis, the inventor made structural improvements to the paper sharps box.
[0024] like Figures 1-5 As shown in one embodiment of an improved sharps box according to this application, the sharps box includes a first cover plate 1 and a second cover plate 12 made of cardboard disposed on the top of the sharps box. The first cover plate 1 is connected to the top surface of the rear end of the box body 11 of the sharps box, and the second cover plate 12 is connected to the top surface of the front end of the box body 11 of the sharps box. The top surface of the second cover plate 12 has a circular opening 121 for inserting a sharps object. When closing the sharps box, the second cover plate 12 is closed first, and then the first cover plate 1 is closed.
[0025] A locking mechanism made of plastic is installed on the first cover plate 1. The locking mechanism includes a rotating disk 2 arranged on the top surface of the first cover plate 1. A rotating shaft 3 is connected to the bottom of the rotating disk 2. A through hole is opened in the middle of the first cover plate 1, and the rotating shaft 3 passes through the through hole downward. A synchronous disk 4 is connected to the bottom of the rotating shaft 3. A connecting rod assembly is installed on the side wall of the synchronous disk 4. A locking plate 7 that is controlled to open or retract by the connecting rod assembly is installed at the end of the connecting rod assembly.
[0026] The bottom surface of the first cover plate 1 is provided with a clamping paperboard 10. The clamping paperboard 10 is a plurality of sheets and is distributed equidistantly on the bottom surface of the first cover plate 1. The clamping paperboard 10 is arranged staggeredly inside and outside, and the diameter formed thereby is smaller than the opening 121 of the second cover plate 12. The clamping paperboard 10 is in an arc-shaped fan structure. As shown in Figure 2 When the locking mechanism is not opened, the clamping paperboard 10 is distributed vertically downward, and after the locking mechanism is opened, the locking plate 7 pushes the clamping paperboard 10 away, so that the clamping paperboard 10 is unfolded and fixed between the locking plate 7 and the second cover plate 12. The clamping paperboard 10 has two functions: first, when the box body 11 of the sharp tool box is closed, the clamping paperboard 10 covers the opening 121 of the second cover plate 12 and is fixed by the locking plate 7, thereby improving the sealing performance of the sharp tool box; second, since the clamping paperboard 10 is connected to the bottom of the first cover plate 1, when the clamping paperboard 10 is fixed to the bottom of the second cover plate 12, the first cover plate 1 and the second cover plate 12 are actually more closely attached, so that when the sharp tool box is lifted, the first cover plate 1 and the second cover plate 12 together pull the box body 11, thereby improving the bending resistance of the first cover plate 1 and preventing a gap between the first cover plate 1 and the second cover plate 12.
[0027] The rotating disc 2 is in a disc structure, and an arc-shaped handle 9 is installed on the top surface of the rotating disc 2. The handle 9 can drive the rotating disc 2 to rotate and can also lift the sharp tool box.
[0028] As shown in Figure 2 When the rotating disc 2 drives the rotating shaft 3 and the synchronous disc 4 to rotate counterclockwise, the connecting rod assembly pushes the locking plate 7 out and pushes the clamping paperboard 10 away. In order to achieve this effect, the connecting rod assembly includes a rectangular short rod 5 and a long rod 6. The right end of the short rod 5 is connected to the side surface of the disc-shaped synchronous disc 4 in one piece, and the left end is hingedly connected to the long rod 6. As shown in Figure 1 When the connecting rod assembly is not in motion, the short rod 5 and the long rod 6 are distributed at an angle greater than 80° and less than 90°. When the connecting rod assembly is in motion, the short rod 5 and the long rod 6 are distributed at an angle greater than 150° and less than 160°.
[0029] The locking plate 7 is in a roughly left-small and right-large water-drop-shaped panel structure. The end surface of the locking plate 7 facing the synchronous disc 4 is planar. The long rod 6 of the connecting rod assembly is hingedly connected to the middle left side of the end surface of the locking plate 7 facing the synchronous disc 4, away from the end of the long rod 6 hingedly connected to the short rod 5. In addition, the bottom of the synchronous disc 4 is connected to a support plate 8 for preventing the locking plate 7 from falling. The left side of the locking plate 7 is hingedly connected to the top surface of the support plate 8 through a pin shaft.
[0030] In combination with the trajectory of the connecting rod assembly in motion as described above, when the short rod 5 moves counterclockwise, the long rod 6 is pushed to move. Since the other end of the long rod 6 is hingedly connected to the locking plate 7, and the left end of the locking plate 7 is also hingedly connected to the support plate 8, when the connecting rod structure changes from Figure 1 state toFigure 2 In this state, the long rod 6 will swing during the movement, and the swing will push the locking plate 7 to open until the rotating disk 2 can no longer rotate, and the locking plate 7 is in the open limit state.
[0031] Correspondingly, the number of connecting rod assemblies, locking plates 7, and snap-fit plates 10 are matched. Several connecting rod assemblies and locking plates 7 are circumferentially distributed on the side of the synchronization disc 4.
[0032] It is worth noting that each locking plate 7, when opening the latching plate 10, pushes the middle position of the side of the latching plate 10, such as... Figure 3 As shown, since the snap-fit cardboard 10 has a circular layout with staggered inner and outer sides, the plane size of the locking plate 7 that contacts the outer snap-fit cardboard 10 will be slightly larger. In this way, the outer snap-fit cardboard 10 will be pushed open by the corresponding locking member before the inner snap-fit cardboard 10, and the inner snap-fit cardboard 10 will not be interfered with by the outer snap-fit cardboard 10 and thus cannot be opened.
[0033] like Figure 2 As shown in Figure 4, after all the snap-fit cardboard 10s are opened, it can be seen that the snap-fit cardboard 10s are circumferentially distributed, and there is a certain gap between each pair of snap-fit cardboard 10s. After the locking plate 7 is opened, it is located at the bottom of these gaps, blocking all the gaps and improving the sealing performance.
[0034] like Figures 1-5 As shown in one embodiment of an improved sharps box according to this application, the sharps box includes a first cover plate 1 and a second cover plate 12 made of cardboard disposed on the top of the sharps box. The first cover plate 1 is connected to the top surface of the rear end of the box body 11 of the sharps box, and the second cover plate 12 is connected to the top surface of the front end of the box body 11 of the sharps box. The top surface of the second cover plate 12 has a circular opening 121 for inserting a sharps object. When closing the sharps box, the second cover plate 12 is closed first, and then the first cover plate 1 is closed.
[0035] A locking mechanism made of plastic is installed on the first cover plate 1. The locking mechanism includes a rotating disk 2 arranged on the top surface of the first cover plate 1. A rotating shaft 3 is connected to the bottom of the rotating disk 2. A through hole is opened in the middle of the first cover plate 1, and the rotating shaft 3 passes through the through hole downward. A synchronous disk 4 is connected to the bottom of the rotating shaft 3. A connecting rod assembly is installed on the side wall of the synchronous disk 4. A locking plate 7 that is controlled to open or retract by the connecting rod assembly is installed at the end of the connecting rod assembly.
[0036] The bottom surface of the first cover plate 1 is provided with snap-fit paperboard 10. Several snap-fit paperboards 10 are arranged circumferentially on the bottom surface of the first cover plate 1. The snap-fit paperboards 10 are staggered inwards and outwards, forming a diameter smaller than the opening 121 of the second cover plate 12. The snap-fit paperboards 10 have an arc-shaped fan-shaped structure. Figure 2As shown, when the locking mechanism is not open, the snap-fit cardboard 10 is vertically downward. When the locking mechanism is open, the locking plate 7 pushes the snap-fit cardboard 10 open, causing it to unfold and be fixed between the locking plate 7 and the second cover plate 12. The snap-fit cardboard 10 serves two purposes: first, when the sharps box body 11 is closed, the snap-fit cardboard 10 covers the opening 121 of the second cover plate 12 and is fixed by the locking plate 7, improving the sealing of the sharps box; second, since the snap-fit cardboard 10 is connected to the bottom of the first cover plate 1, when the snap-fit cardboard 10 is fixed to the bottom of the second cover plate 12, it actually makes the fit between the first cover plate 1 and the second cover plate 12 tighter. Thus, when the sharps box is lifted, it is as if the first cover plate 1 and the second cover plate 12 pull the box body 11 together, increasing the bending strength of the first cover plate 1 and preventing gaps from appearing between the first cover plate 1 and the second cover plate 12.
[0037] The rotating disk 2 has a disc-shaped structure, and an arc-shaped handle 9 is installed on its top surface. The handle 9 can drive the rotating disk 2 to rotate, or it can lift the sharps box.
[0038] like Figure 2 As shown, when the rotating disk 2 drives the rotating shaft 3 and the synchronous disk 4 to rotate counterclockwise, the linkage assembly will push out the locking plate 7 and open the snap-fit cardboard 10. To achieve this effect, the linkage assembly includes a rectangular short rod 5 and a long rod 6. The right end of the short rod 5 is integrally connected to the side of the disc-shaped synchronous disk 4, and the left end is hinged to the long rod 6. Figure 1 As shown, when the linkage assembly is not moving, the short rod 5 and the long rod 6 are distributed at an angle greater than 80° and less than 90°; when the linkage assembly is moving, the short rod 5 and the long rod 6 are distributed at an angle greater than 150° and less than 160°.
[0039] The locking plate 7 itself has a roughly teardrop-shaped panel structure, with the left side smaller than the right side. Its end face facing the synchronizer disc 4 is flat. The end of the long rod 6 of the connecting rod assembly that is away from itself and hinged to the short rod 5 is hinged to the left side of the locking plate 7 facing the synchronizer disc 4. In addition, a support plate 8 is connected to the bottom of the synchronizer disc 4 to prevent the locking plate 7 from falling. The left side of the locking plate 7 and the top surface of the support plate 8 are hinged together by a pin.
[0040] Based on the aforementioned trajectory of the linkage assembly, when the short rod 5 moves counterclockwise, it pushes the long rod 6 to move. Since the other end of the long rod 6 is hinged to the locking plate 7, and the left end of the locking plate 7 is hinged to the support plate 8, when the linkage structure... Figure 1 State changes are Figure 2 In this state, the long rod 6 will swing during the movement, and the swing will push the locking plate 7 to open until the rotating disk 2 can no longer rotate, and the locking plate 7 is in the open limit state.
[0041] Correspondingly, the number of the connecting rod assemblies, locking plates 7 and clamping paperboards 10 is matched. The connecting rod assemblies, locking plates 7 are distributed equidistantly on the side of the synchronous disc 4.
[0042] It is worth noting that each locking plate 7 pushes the middle of the side of the clamping paperboard 10 when opening the clamping paperboard 10, as shown in Figure 3 Since the clamping paperboard 10 is arranged in a staggered circular manner, the planar size of the locking plate 7 in contact with the outer clamping paperboard 10 is slightly larger, so that the outer clamping paperboard 10 is pushed open by the corresponding locking member earlier than the inner clamping paperboard 10, and the inner clamping paperboard 10 will not be interfered by the outer clamping paperboard 10 to cause the opening failure.
[0043] As shown in Figure 2 After the clamping paperboards 10 are opened, it can be seen that the clamping paperboards 10 are distributed equidistantly in a circle, and there is a certain gap between the clamping paperboards 10. After the locking plate 7 is opened, the bottom of the gap is blocked, improving the sealing performance.
[0044] Before the sharp tool box is sealed, the state of the sharp tool box is as shown in Figure 1 and Figure 3 When the sharp tool box needs to be sealed and transported, the first cover plate 1 is placed on the second cover plate 12, the clamping paperboard 10 at the bottom of the first cover plate 1 is placed at the opening 121 of the second cover plate 12, then the handle 9 is held and rotated counterclockwise to rotate the rotating disc 2, the connecting rod assembly pushes the locking plate 7 away, the locking plate 7 pushes and expands the corresponding clamping paperboard 10, and the clamping paperboard 10 is fixed between the second cover plate 12 and the locking plate 7, the locking plate 7 is limited by the large friction force to prevent displacement, the first cover plate 1, the second cover plate 12 and the clamping paperboard 10 are extruded by the combination of the clamping paperboard 10 and the locking plate 7 and the rotating disc 2 to realize close contact, and the opening 121 of the second cover plate 12 of the sharp tool box is sealed. A lifting surface with high strength is formed at the middle of the first cover plate 1, the clamping paperboard 10 and the opening 121 of the second cover plate 12. At this time, the sharp tool box is lifted by the handle 9, and the first cover plate 1 will not be bent. Even if bending occurs, the first cover plate 1 and the second cover plate 12 are tightly attached and will not have a gap, ensuring the sealing performance of the entire sharp tool box and preventing the sharp tool from being exposed and falling out.
[0045] It should be understood that all the above embodiments are exemplary and non-limiting, and various modifications or variations of the specific embodiments described above made by those skilled in the art under the concept of the present application shall be within the protection scope of the present application.
Claims
1. An improved sharpener case comprising a first cover and a second cover provided on the top of the sharpener case, characterized in that, The locking mechanism comprises a rotating disc, the bottom of the rotating disc is provided with a rotating shaft penetrating through the first cover plate, the bottom of the rotating shaft is provided with a synchronous disc, the sidewall of the synchronous disc is provided with a connecting rod assembly, the end of the connecting rod assembly is provided with a locking plate which controls opening or retraction.
2. The sharp container of claim 1, wherein, The bottom surface of the first cover plate is provided with a clamping paperboard.
3. The sharp container of claim 2, wherein, The clamping paperboard is a plurality of, and is circumferentially and equidistantly distributed on the bottom surface of the first cover plate.
4. The sharp container of claim 1, wherein, The top surface of the rotating disc is provided with a handle.
5. The sharp container of claim 1, wherein, The connecting rod assembly comprises a short rod and a long rod, the right end of the short rod is connected with the sidewall of the synchronous disc, and the left end is hingedly connected with the long rod.
6. The sharp container of claim 5, wherein, The other end of the long rod of the connecting rod assembly is hingedly connected with the left side of the locking plate.
7. The sharp container of claim 1, wherein, The bottom of the synchronous disc is provided with a supporting plate.
8. The sharp container of claim 7, wherein, The left side of the locking plate is hingedly connected with the top surface of the supporting plate.
9. The sharp container of claim 3, wherein, The number of the connecting rod assembly, the locking plate and the clamping paperboard is matched.
10. The sharp box of claim 9, wherein, The plurality of connecting rod assemblies and locking plates are circumferentially and equidistantly distributed on the side of the synchronous disc.