Pull-open cover type sharp instrument box
By designing a pull-out lid-type sharps box, and utilizing a combination structure of lid base, lid plate, and pull cord, along with a locking mechanism, the problems of hand contamination and sharps leakage in inward-flip lid-type sharps boxes are solved, achieving safe and stable sharps storage.
Patent Information
- Application Number
- CN202423003899.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-06
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2034-12-06
AI Technical Summary
Existing flip-top sharps containers pose a risk of hand contamination or punctures during use, and the lid may open automatically due to vibration, causing sharps to leak out.
A pull-out sharps box was designed. The lid consists of a lid base, a lid plate, and a pull cord. The lid is automatically closed and manually opened by using the elastic force of a torsion spring. Combined with a locking mechanism, the lid is locked when not in use to prevent automatic opening caused by vibration.
It enables hands-free operation directly into the box cavity, reducing the risk of hand contamination, and the locking mechanism ensures a stable and closed lid, preventing sharp objects from leaking out.
Smart Images

Figure CN223759896U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of sharps containers, and in particular to the technical field of pull-out lid type sharps containers. Background Technology
[0002] With the continuous development of my country's medical and health undertakings, disposable medical devices have gradually become more widespread. Hospital management regulations usually require medical staff to properly collect sharps generated during medical care, such as surgical needles, puncture needles, infusion needles and needle tips, and have them recycled by medical waste disposal units.
[0003] A sharps container is a storage box for sharps. Based on the opening mechanism, it can be categorized into flip-top and sliding-top types. Flip-top sharps containers can be further classified by the orientation of the flip: inward-flip and outward-flip. Inward-flip sharps containers, such as the flip-top self-resetting medical sharps container with publication number CN104875997A and the sharps container preventing leakage upon tipping with publication number CN214712810U, are characterized by their automatic closing mechanism and compact structure. It has advantages such as small overall size when the lid is closed and strong aesthetics, so it is widely used. However, in order to avoid direct contact between the lid and sharps, medical staff often need to press the lid into the box cavity with one hand and put the sharps into the box cavity with the other hand. Since the hands of medical staff need to be inserted into the box during the pressing process, there is a risk of contamination or puncture. In addition, the inner flip-top type sharps box often cannot lock the lid, which may cause the lid to open automatically and pour out the sharps under the action of external vibration. Summary of the Invention
[0004] The purpose of this utility model is to solve the problems in the prior art by proposing a pull-out lid type sharps box with a simple overall structure. It retains the original advantages of the inward-opening lid design and eliminates the need for the user to press their hand into the box cavity.
[0005] To achieve the above objectives, this utility model proposes a pull-out lid type sharps box, including a box body and a box lid. The box lid includes a lid base, a lid plate, and a pull cord. The lid base is threaded together with the box body, forming a box cavity. The top of the lid base has an opening connecting the box cavity to the outside. The lid plate is located inside the box cavity and automatically closes the opening in its natural state. One end of the pull cord is fixed to the lid plate, while the other end passes through the cord hole in the base and out of the lid base. When the pull cord is pulled outward, it causes the lid plate to flip inward and open the opening.
[0006] Preferably, one side of the cover plate is hinged to the cover base and a torsion spring is installed at the hinge, while the other side can push the cover base upward under the elastic force of the torsion spring.
[0007] Preferably, the pull cord is also equipped with a pull ring at its free end.
[0008] Preferably, one side of the cover plate supporting the cover base can also be locked together with the cover base by a locking mechanism.
[0009] Preferably, the locking mechanism includes a lock head and a spring. The base and the cover plate are provided with corresponding base rod holes and plate rod holes. The locking rod includes a baffle, a vertical rod, and a locking bar. The vertical rod passes through the base and the cover plate along the base rod holes and the plate rod holes, and its two ends are fixed to the baffle and the locking bar, respectively. The spring is sleeved outside the vertical rod and supports the baffle and the base. The locking bar can only be inserted into the base rod holes and the plate rod holes when rotated to a specified angle.
[0010] Preferably, the wide side of the lock bar is not longer than the width of the base rod hole and the plate rod hole, the long side of the lock bar is longer than the width of the base rod hole and the plate rod hole, and the long side of the lock bar is not longer than the length of the base rod hole and the plate rod hole.
[0011] Preferably, the base rod hole is also provided with an inner flange on the inner wall to prevent the lock bar from going upward.
[0012] The beneficial effects of this utility model are:
[0013] 1) By installing a lid consisting of a lid base, a lid plate, and a pull cord on the top of the box, the opening above the lid base can be automatically closed by the spring force of the torsion spring and the lid plate can be opened by manually pulling the pull cord outward. The overall structure is simple, retaining the original advantages of the inward opening design, and eliminating the need for the user to put their hand into the box cavity.
[0014] 2) By adding a pull ring to the free end of the pull rope, it is not only convenient for users to operate the pull rope, but also prevents the pull rope from being completely pulled into the box cavity;
[0015] 3) By installing a locking mechanism consisting of a lock head and a spring between the base and the cover plate, the lock head can be pressed down and turned to lock the base and the cover plate together when the sharps box is not used for a long time. This prevents the cover plate from automatically flipping inward due to external vibrations and other factors. The spring can ensure the locking stability between the base and the cover plate with its elasticity, and it can also push the lock head back to its original position when it is turned back.
[0016] The features and advantages of this utility model will be described in detail through embodiments and accompanying drawings. Attached Figure Description
[0017] Figure 1 This is a cross-sectional view of the pull-out lid type sharps box of this utility model;
[0018] Figure 2This is a cross-sectional view of the lid of the pull-out type sharps box of this utility model;
[0019] Figure 3 yes Figure 2 An enlarged view of point A;
[0020] Figure 4 yes Figure 3 A schematic diagram of the structure after the lock head is turned;
[0021] Figure 5 yes Figure 4 A schematic diagram of the structure after the lock head is moved up;
[0022] In the diagram: 1-box body, 2-box lid, 21-lid base, 211-opening, 212-base rod hole, 213-inner flange, 22-lid plate, 221-plate rod hole, 23-pull rope, 24-pull ring, 25-locking mechanism, 251-lock head, 2511-baffle, 2512-upright rod, 2513-lock bar, 252-spring. Detailed Implementation
[0023] See Figures 1 to 5 This utility model relates to a pull-out type sharps box, comprising a box body 1 and a box lid 2. The box lid 2 includes a lid base 21, a lid plate 22, and a pull cord 23. The lid base 21 is threadedly connected to the box body 1, forming a box cavity. The top of the lid base 21 has an opening 211 that connects the box cavity to the outside. The lid plate 22 is located inside the box cavity and automatically closes the opening 211 in its natural state. One end of the pull cord 23 is fixed to the lid plate 22, while the other end passes through the cord hole in the base body and extends out of the lid base 21. When the pull cord 23 is pulled outward, it causes the lid plate 22 to flip inward and open the opening 211.
[0024] One side of the cover plate 22 is hinged to the cover base 21 and a torsion spring is installed at the hinge, while the other side can push the cover base 21 upward under the elastic force of the torsion spring.
[0025] The pull rope 23 is also equipped with a pull ring 24 at its free end.
[0026] The cover plate 22 can also be locked to the cover base 21 on one side by a locking mechanism 25.
[0027] The locking mechanism 25 includes a lock head 251 and a spring 252. The base 21 and the cover plate 22 are provided with corresponding base rod holes 212 and plate rod holes 221. The locking rod 251 includes a baffle 2511, a vertical rod 2512 and a locking bar 2513. The vertical rod 2512 passes through the base 21 and the cover plate 22 along the base rod holes 212 and the plate rod holes 221, and its two ends are fixed to the baffle 2511 and the locking bar 2513 respectively. The spring 252 is sleeved outside the vertical rod 2512 and supports the baffle 2511 and the base 21. The locking bar 2513 can only extend into the base rod holes 212 and the plate rod holes 221 along with the vertical rod 2512 when rotated to a specified angle.
[0028] The wide side of the locking bar 2513 is not longer than the width of the base rod hole 212 and the plate rod hole 221, the long side of the locking bar 2513 is longer than the width of the base rod hole 212 and the plate rod hole 221, and the long side of the locking bar 2513 is not longer than the length of the base rod hole 212 and the plate rod hole 221.
[0029] The base rod hole 212 is also provided with an inner flange 213 on the inner wall to prevent the locking bar 2513 from going upward.
[0030] The working process of this utility model:
[0031] When in use, simply pull down on the pull ring 24 to open the opening 211 by using the pull rope 23 to flip the cover 22 inward, allowing sharp objects to be inserted into the box cavity; at this time, if the pull ring 24 is released, the cover 22 will return to its original position under the elastic force of the torsion spring and close the opening 211 again.
[0032] When the locking mechanism 25 is not locked (e.g.) Figure 5 As shown), the lock head 251 is lifted by the spring 252, while the cover plate 22 is not locked by the locking mechanism 25. If the sharps box is not needed for a long time, the locking mechanism 25 can be used to lock the cover base 21 and the cover plate 22 together, so that the cover plate 22 cannot be opened inward by flipping it open to the opening 211. Specifically, first press the lock head 251 down until the lock bar 2513 is located below the cover plate 22 (as shown). Figure 4 (As shown), then turn and press the lock head 251 until the lock bar 2513 is misaligned and cannot enter the base rod hole 212 and the plate rod hole 221 (as shown). Figure 3 (As shown).
[0033] If you need to remove the sharps stored in the sharps box, first unscrew the lid 2 from the box body 1, then tilt the box body 1.
[0034] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the protection scope of the present invention.
Claims
1. A pull-off-lid sharps box, characterized in that: The utility model relates to a box, which comprises a box body (1) and a box cover (2), the box cover (2) comprises a cover base (21), a cover plate (22) and a pull rope (23), the cover base (21) is threadedly connected with the box body (1) one above the other and together encloses a box cavity, the top of the cover base (21) is provided with an opening (211) for communicating the box cavity with the outside world, the cover plate (22) is located in the box cavity and automatically closes the opening (211) in a natural state, one end of the pull rope (23) is fixed with the cover plate (22) and the other end is pulled out of the cover base (21) along a base rope hole, the pull rope (23) can be pulled outwards to make the cover plate (22) turn inside out and open the opening (211).
2. The pull-cage type sharps container of claim 1, wherein: One side of the cover plate (22) is hinged with the cover base (21) and a torsional spring is installed at the hinge, and the other side can be upwardly supported to the cover base (21) under the elastic force of the torsional spring.
3. The pull-cage type sharps container of claim 2, wherein: A pull ring (24) is further installed at the free end of the pull rope (23).
4. The pull-cage type sharps container of claim 2, wherein: The side of the cover plate (22) that supports the cover base (21) can be locked together with the cover base (21) through a locking mechanism (25).
5. The pull-cage type sharps container of claim 4, wherein: The locking mechanism (25) comprises a lock head (251) and a spring (252), the cover base (21) and the cover plate (22) are provided with corresponding base rod holes (212) and plate rod holes (221) above and below, the lock head (251) comprises a baffle (2511), a vertical rod (2512) and a lock strip (2513), the vertical rod (2512) penetrates the cover base (21) and the cover plate (22) along the base rod holes (212) and the plate rod holes (221) and the two ends are respectively fixed with the baffle (2511) and the lock strip (2513), the spring (252) is sleeved outside the vertical rod (2512) and is supported between the baffle (2511) and the cover base (21), the lock strip (2513) can only be inserted into the base rod holes (212) and the plate rod holes (221) along with the vertical rod (2512) when being rotated to a specified angle.
6. The pull-cage type sharps container of claim 5, wherein: The width of the lock strip (2513) is not longer than the width of the base rod holes (212) and the plate rod holes (221), the length of the lock strip (2513) is longer than the width of the base rod holes (212) and the plate rod holes (221), and the length of the lock strip (2513) is not longer than the length of the base rod holes (212) and the plate rod holes (221).
7. The pull-cage type sharps container of claim 5, wherein: The base rod holes (212) are further provided with an inner turning edge (213) at the inner wall to prevent the lock strip (2513) from being pulled out upwards.
Citation Information
Patent Citations
Flap self-restoring medical sharp instrument box
CN104875997A
Sharp instrument box capable of preventing sharp instruments from leaking out during toppling
CN214712810U