A needle placing box
By combining the dual-cavity design of the box body and lid with the magnetic substrate and plug-in post, the dental bur holder achieves flexible adaptation and stable storage, solving the problems of poor compatibility and bur shaking and wear, and improving the convenience and safety of storage.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YUYAO PEOPLES HOSPITAL
- Filing Date
- 2025-09-10
- Publication Date
- 2026-06-26
Smart Images
Figure CN224410092U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dental instruments, and more specifically, to a bur holder. Background Technology
[0002] Currently, dental burs are mostly stored in fixed-section box structures, with internal inserts designed for a single specification and fixed holes. This makes it difficult to accommodate burs of different diameters and quantities, leading to confusion or wasted space when storing burs of various sizes. Although some storage boxes use modular inserts, the holes are prone to misalignment when the inserts are stacked, causing the burs to wobble after insertion and resulting in wear on the cutting edges. Furthermore, spare inserts are often stacked haphazardly on the outside of the box or stored separately, making them inconvenient to access and prone to falling out, thus limiting the convenience and reliability of dental bur storage.
[0003] How to invent a needle holder to improve these problems has become an urgent problem for those skilled in the art. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides a bur storage box, which aims to improve the problems of poor adaptability, easy shaking and wear of burs, and inconvenience in storing and retrieving spare inserts in existing dental cart bur storage boxes.
[0005] This utility model is implemented as follows: a needle placement box includes a box body and several circular base plates and fan-shaped extension plates. A box cover is rotatably installed on the top of the box body. The box body and the box cover have recessed placement cavities and receiving cavities respectively on opposite surfaces. A first insertion post and a second insertion stop are respectively provided at the axial center of the inner wall of one side of the placement cavity and the receiving cavity. The first insertion post is used to connect several circular base plates and fan-shaped extension plates for placing needles. The second insertion stop is used to connect the remaining circular base plates and fan-shaped extension plates. Several needle insertion holes of different diameters are opened on several circular base plates and fan-shaped extension plates. An insertion hole corresponding to the first insertion post and the second insertion stop is opened through the axial center of the surface of each circular base plate and fan-shaped extension plate.
[0006] In a preferred embodiment of this utility model, a plurality of needle insertion holes on each circular substrate are evenly distributed in a ring, the diameter of the needle insertion holes on the same circular substrate is the same, and the number of needle insertion holes on each circular substrate is the same.
[0007] In a preferred embodiment of this utility model, the plurality of needle insertion holes on each of the fan-shaped expansion plates are distributed in an arc shape at equal intervals, and the diameter of the needle insertion holes on the same fan-shaped expansion plate is the same. The number, shape and area of the needle insertion holes on each fan-shaped expansion plate correspond to each other.
[0008] In a preferred embodiment of this utility model, the angle between two adjacent needle insertion holes on each of the circular substrates and the fan-shaped expansion plates is consistent, and the distance from the center of each needle insertion hole to the center of the corresponding insertion hole is consistent.
[0009] In a preferred embodiment of this utility model, each of the circular substrates and the fan-shaped expansion plates is made of magnetic material, and an overhead base is provided on the inner wall of the bottom of the placement cavity. The bottom end of the first insertion post is fixedly connected to the center of the upper surface of the overhead base. The first insertion post, the second insertion post, and the overhead base are all made of magnetically attractive material.
[0010] In a preferred embodiment of this utility model, a buckle is provided extending downward from one side of the bottom end of the box lid, and a corresponding slot is provided on one side of the outer wall of the box body, with the buckle engaging with the slot.
[0011] In a preferred embodiment of this utility model, annular grooves are formed on the opposite surfaces of the box body and the box cover, and a sealing gasket is embedded in each annular groove.
[0012] In a preferred embodiment of this utility model, a lifting groove is provided on one side of the outer wall of the second connector, a movable block is provided in the lifting groove, and sliders are integrally provided on both sides of the movable block. Each slider is slidably installed in a corresponding guide groove. Two guide grooves are respectively opened on the inner walls of both sides of the lifting groove and are consistent with the extension direction of the second connector. One end of the movable block is rotatably connected to one end of a limiting block. The bottom of the movable block and the bottom of the limiting block are provided with mutually cooperating abutting and limiting protrusions. A spring is fixedly connected between the top surface of the movable block and the top inner wall of the lifting groove.
[0013] In a preferred embodiment of this utility model, the first insertion post, the second insertion post, and the insertion hole have corresponding non-circular cross-sectional shapes.
[0014] The beneficial effects of this utility model are as follows: The dental bur storage box obtained by the above design can achieve precise stacking by using the dual-cavity design of the box body and the box cover, combined with the modular combination of the circular base plate and the fan-shaped expansion plate, and the cooperation of the insertion hole and the first insertion post and the second insertion post. It can flexibly adapt to the storage needs according to the diameter and quantity of the burs, solving the problem of poor adaptability of traditional fixed structures. The magnetic base plate, expansion plate and magnetic insertion post, combined with the coaxial design of the insertion hole, effectively avoid the shaking of the burs and the misalignment of the hole, protect the cutting edge of the burs, and improve the flexibility, stability and safety of dental bur storage. Attached Figure Description
[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.
[0016] Figure 1 This is a three-dimensional schematic diagram of the overall structure provided by the embodiment of this utility model;
[0017] Figure 2 A perspective view of the overall internal structure provided for the embodiments of this utility model;
[0018] Figure 3 A three-dimensional schematic cross-sectional view of the overall structure provided for the embodiments of this utility model;
[0019] Figure 4 A perspective view of the overall cross-sectional structure of the second plug-in connector provided for an embodiment of this utility model;
[0020] Figure 5 A schematic perspective view of the overall structure of the circular substrate provided for an embodiment of this utility model;
[0021] Figure 6 A perspective view illustrating the overall structure of the fan-shaped expansion plate provided for an embodiment of this utility model.
[0022] In the diagram: 1-Box body; 2-Circular base plate; 3-Fan-shaped expansion plate; 4-Insertion hole; 5-Needle insertion hole; 101-Box cover; 102-Placement cavity; 103-Receiving cavity; 105-First insertion post; 106-Second insertion post; 107-Snap fastener; 108-Snap slot; 109-Ring groove; 110-Sealing gasket; 111-Uplift base; 112-Lifting groove; 113-Moving block; 114-Slider; 115-Guide groove; 116-Limiting block; 117-Tension spring. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0024] Please see Figures 1 to 6This utility model provides a technical solution: a needle placement box, including a box body 1 and several circular base plates 2 and fan-shaped expansion plates 3. A box cover 101 is rotatably installed on the top of the box body 1. The box body 1 and the box cover 101 have recessed placement cavities 102 and receiving cavities 103 respectively on opposite surfaces. A first insertion post 105 and a second insertion stop 106 are respectively provided at the axial center of the inner wall of one side of the placement cavity 102 and the receiving cavity 103. The first insertion post 105 is used to connect several circular base plates 2 and fan-shaped expansion plates 3 for placing needles. The second insertion stop 106 is used to connect the remaining circular base plates 2 and fan-shaped expansion plates 3. Several needle insertion holes 5 of different diameters are opened on the several circular base plates 2 and fan-shaped expansion plates 3. An insertion hole 4 corresponding to the first insertion post 105 and the second insertion stop 106 is opened through the axial center of the surface of each circular base plate 2 and fan-shaped expansion plate 3.
[0025] The box body 1 serves as the base for overall storage. The lid 101 is hinged to the top of the box body 1 via a hinge or equivalent rotating structure, allowing it to be flipped open and closed relative to the box body 1. A recessed cavity 102 is formed on the side of the box body 1 facing the lid 101, and a recessed cavity 103 is formed on the side of the lid 101 facing the box body 1. The two cavities are shaped and sized to fit together, ensuring complete enclosure when closed and protecting the internal components. A first insertion post 105 and a second insertion post 106 are fixed at the axial center of the placement cavity 102 and the cavity 103, respectively, for inserting the circular substrate 2 and the fan-shaped expansion plate 3. The first insertion post 105 of the placement cavity 102 is used for stacking substrates and expansion plates in use, while the second insertion post 106 of the cavity 103 is used for storing spare substrates and expansion plates. The circular base plate 2 is a complete disc, and the fan-shaped extension plate 3 is fan-shaped with the central angle designed as needed, such as 60°, 90°, etc. Both can be fitted onto the insertion post through the insertion hole 4 at the center; and both have several needle insertion holes 5 on their surfaces. The diameter of the holes is designed in multiple different sizes according to the needle specifications, such as 0.5mm, 0.8mm, 1.2mm, etc., to accommodate different types of needles.
[0026] Please see Figure 5 and Figure 6 On each circular substrate 2, several needle insertion holes 5 are evenly distributed in a ring. The diameter of the needle insertion holes 5 on the same circular substrate 2 is the same, and the number of needle insertion holes 5 on each circular substrate 2 is the same.
[0027] On each circular substrate 2, the needle insertion holes 5 are evenly distributed in a ring around the insertion hole 4. For example, when there are 6 holes, the central angle between adjacent holes is 60°. Furthermore, the diameter of all needle insertion holes 5 on the same circular substrate 2 is exactly the same. For example, a circular substrate 2 may only have holes with a diameter of 0.8 mm. At the same time, the number of needle insertion holes 5 on each circular substrate 2 is the same, such as 6 holes.
[0028] Furthermore, the needle insertion holes 5 on each sector-shaped expansion plate 3 are distributed in an arc shape at equal intervals, and the needle insertion holes 5 on the same sector-shaped expansion plate 3 have the same diameter. The number, shape and area of the needle insertion holes 5 on each sector-shaped expansion plate 3 correspond to each other.
[0029] The fan-shaped expansion plate 3 has a fan-shaped structure, and the needle insertion holes 5 on it are distributed equidistantly along the arc. All the needle insertion holes 5 on the same fan-shaped expansion plate 3 have the same diameter. For example, a certain fan-shaped plate only has holes with a diameter of 1.2mm. The number of needle insertion holes 5 is strongly related to the shape and area of the fan. The larger the area of the fan, the more holes there are. For example, a large fan has 4 holes and a small fan has 2 holes to maximize the effective storage area of the fan-shaped plate.
[0030] Furthermore, the angle between two adjacent needle insertion holes 5 on each circular substrate 2 and the fan-shaped expansion plate 3 is consistent, and the distance from the center of each needle insertion hole 5 to the center of the corresponding insertion hole 4 is consistent.
[0031] Regardless of whether it is the circular substrate 2 or the fan-shaped expansion board 3, the central angles of two adjacent needle insertion holes 5 are strictly consistent, such as 30° or 60°, and the distance (radius) from the center of each needle insertion hole 5 to the center of the insertion hole 4 is exactly the same. Therefore, when multiple substrates and expansion boards are stacked, the needle insertion holes 5 of each layer can be precisely coaxially aligned, that is, the axis of the upper layer hole coincides with the axis of the lower layer hole.
[0032] Furthermore, each circular substrate 2 and fan-shaped expansion plate 3 is made of magnetic material. An overhead base 111 is provided on the bottom inner wall of the placement cavity 102. The bottom end of the first insertion post 105 is fixedly connected to the axis on the upper surface of the overhead base 111. The first insertion post 105, the second insertion post 106 and the overhead base 111 are all made of magnetic material.
[0033] The circular substrate 2 and the fan-shaped expansion plate 3 are made of magnetic materials, such as medical stainless steel with magnetic components, or medical plastic with embedded neodymium iron boron weak magnetic blocks; the first insertion post 105, the second insertion post 106, and the overhead base 111 are made of magnetically attractive materials. The overhead base 111 is annular or disc-shaped and is fixed at the bottom of the placement cavity 102, raising the bottommost circular substrate 2 so that the tail of the bur is kept at a gap with the bottom of the placement cavity 102.
[0034] Please see Figure 2 and Figure 3 A buckle 107 extends downward from one side of the bottom of the lid 101, and a corresponding slot 108 is provided on one side of the outer wall of the box body 1. The buckle 107 and the slot 108 engage with each other.
[0035] The bottom of the lid 101 extends downward to form a buckle 107, which can be a flexible protrusion or a spring-loaded snap-fit. The outer wall of the corresponding side of the box body 1 has a slot 108. When the lid is closed, the buckle 107 is pressed and engages with the slot 108, thus locking the box body and the lid.
[0036] Furthermore, annular grooves 109 are provided on the opposite surfaces of the box body 1 and the box cover 101, and a sealing gasket 110 is embedded in each annular groove 109.
[0037] Both the box body 1 and the lid 101 have annular grooves 109 on their opposite sides. A sealing gasket 110 is embedded in the annular groove 109. The gasket is made of medical-grade silicone or nitrile rubber and is biocompatible and sterilization resistant. When the lid is closed, the sealing gasket 110 is compressed and deformed, filling the gap between the box body and the lid.
[0038] Furthermore, the first insertion post 105, the second insertion post 106, and the insertion hole 4 have corresponding non-circular cross-sectional shapes.
[0039] The cross-sections of the first insertion post 105 and the second insertion post 106 are non-circular, such as hexagonal, square, or D-shaped. The shape of the insertion hole 4 perfectly matches the cross-section of the insertion post, preventing relative rotation when the circular substrate 2 and the fan-shaped extension plate 3 are fitted onto the insertion post. Simultaneously, a polygonal structure with the same number of needle insertion holes 5 automatically aligns several circular substrates 2 and fan-shaped extension plates 3, ensuring that all corresponding needle insertion holes 5 are coaxially distributed.
[0040] Please see Figure 4 The second connector 106 has a lifting groove 112 on one side of its outer wall. A moving block 113 is provided in the lifting groove 112. A slider 114 is integrally provided on both sides of the moving block 113. Each slider 114 is slidably installed in a corresponding guide groove 115. The two guide grooves 115 are respectively opened on the inner walls of the two sides of the lifting groove 112 and are consistent with the extension direction of the second connector 106. One end of the moving block 113 is rotatably connected to one end of the limiting block 116. The bottom of the moving block 113 and the bottom of the limiting block 116 are provided with mutually cooperating abutment limiting protrusions. A spring is fixedly connected between the top surface of the moving block 113 and the top inner wall of the lifting groove 112.
[0041] The second insertion post 106 has a lifting groove 112 on its side wall. The moving block 113 is slidably installed in the guide groove 115 of the lifting groove 112 via sliders 114 on both sides. The guide groove 115 is set along the extension direction of the second insertion post 106. A spring 117 is connected between the top of the moving block 113 and the top wall of the lifting groove 112 to provide an upward pulling force. One end of the limiting block 116 is rotatably connected to the moving block 113, and the bottom of the moving block 113 and the limiting block 116 are provided with mutually cooperating abutment limiting protrusions to limit the rotation angle of the limiting block 116, with a maximum of 90°. In use, the limiting block 116 is pulled down to rotate and be stored in the lifting groove 112. The spare circular base plate and the fan-shaped expansion plate can be slid out along the second insertion post 106. After use, the spring 117 pulls the moving block 113 upward, and the limiting block 116 rotates out and unfolds to a horizontal position, with one side surface abutting against the bottom spare base plate or expansion plate to prevent it from sliding down.
[0042] Working principle: In use, first open the box cover 101, which is engaged with the box body 1 by the buckle 107; according to the diameter and quantity of the needles to be stored, select a circular substrate 2 with the corresponding hole diameter as the base, and use the non-circular insertion hole 4 to fit it onto the first insertion post 105 of the box body 1. The circular substrate 2, made of magnetic material, is attracted and fixed by the magnetic first insertion post 105 and the suspended base 111. At this time, the needle insertion hole 5 on the circular substrate 2 can be used to insert needles of the corresponding diameter. The suspended base 111 raises the circular substrate 2 to prevent wear on the needle tip; if needles of other diameters need to be stored, select a fan-shaped expansion plate 3 with matching hole number and diameter, and stack it on the circular substrate 2 through the insertion hole 4 aligned with the first insertion post 105. Since the adjacent angles and radii of each needle insertion hole 5 are consistent, the holes are coaxial after stacking and the hole diameter gradually increases from top to bottom. The needle insertion holes 5 of the upper fan-shaped expansion plate 3 can be inserted. Small-diameter needles are inserted into the needle insertion holes 5 of the uncovered circular substrate 2, while large-diameter needles are still inserted. Magnetic adsorption stabilizes each layer of insert plates, preventing needles from shaking. Spare circular substrate 2 and fan-shaped expansion plate 3 are fitted onto the second insertion post 106 of the box cover 101 through the insertion hole 4, and are stacked and stored by magnetic adsorption. When a spare insert plate is taken out, the limiting block 116 is pulled down to move it down and rotated to store it in the lifting groove 112. The spare insert plate can be slid out along the second insertion post 106. After taking it out, the spring 117 pulls the moving block 113 up, and the limiting block 116 is rotated in the opposite direction to make it unfold horizontally and hold the bottom spare insert plate for stable storage. After storage, the box cover 101 is closed, the buckle 107 engages with the slot 108, and the sealing gasket 110 seals, ensuring that the needles inside are sterile. When the box body 1 moves, the magnetic and limiting structures keep the insert plates and needles stable and prevent them from shifting or falling.
[0043] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A needle holder, characterized in that, The device includes a box body and several circular base plates and fan-shaped expansion plates. A lid is rotatably mounted on the top of the box body. The box body and the lid have recessed placement cavities and receiving cavities on opposite surfaces. A first insertion post and a second insertion stop are respectively provided at the axial center of the inner wall of one side of the placement cavity and the receiving cavity. The first insertion post is used to connect several circular base plates and fan-shaped expansion plates for placing needles. The second insertion stop is used to connect the remaining circular base plates and fan-shaped expansion plates. Several needle insertion holes of different diameters are provided on several circular base plates and fan-shaped expansion plates. Each circular base plate and fan-shaped expansion plate has a through insertion hole corresponding to the first insertion post and the second insertion stop at the axial center of its surface.
2. The needle holder as described in claim 1, characterized in that: The plurality of needle insertion holes on each circular substrate are evenly distributed in a ring, the diameter of the needle insertion holes on the same circular substrate is the same, and the number of needle insertion holes on each circular substrate is the same.
3. The needle holder as described in claim 1, characterized in that: The needle insertion holes on each of the fan-shaped expansion plates are distributed in an arc shape at equal intervals. The diameter of the needle insertion holes on the same fan-shaped expansion plate is the same, and the number, shape and area of the needle insertion holes on each fan-shaped expansion plate correspond to each other.
4. The needle holder as described in claim 1, characterized in that: The angle between two adjacent needle insertion holes on each of the circular base plates and the fan-shaped expansion plates is consistent, and the distance from the center of each needle insertion hole to the center of the corresponding insertion hole is consistent.
5. The needle holder as described in claim 1, characterized in that: Each of the circular substrates and the fan-shaped expansion plates is made of magnetic material. The bottom inner wall of the placement cavity is provided with an overhead base. The bottom end of the first insertion post is fixedly connected to the axis on the upper surface of the overhead base. The first insertion post, the second insertion post, and the overhead base are all made of magnetic material.
6. The needle holder as described in claim 1, characterized in that: A buckle is provided on one side of the bottom of the box lid, and a corresponding slot is provided on one side of the outer wall of the box body. The buckle and the slot are engaged to lock together.
7. The needle holder as described in claim 1, characterized in that: The box body and the lid are provided with annular grooves on opposite sides of each other, and a sealing gasket is embedded in each annular groove.
8. The needle holder as described in claim 1, characterized in that: The second connector has a lifting groove on one side of its outer wall. A moving block is provided in the lifting groove. A slider is integrally provided on both sides of the moving block. Each slider is slidably installed in a corresponding guide groove. Two guide grooves are respectively opened on the inner walls of the two sides of the lifting groove and are consistent with the extension direction of the second connector. One end of the moving block is rotatably connected to one end of a limiting block. The bottom of the moving block and the bottom of the limiting block are provided with mutually cooperating abutting limiting protrusions. A spring is fixedly connected between the top surface of the moving block and the top inner wall of the lifting groove.
9. The needle holder as described in claim 1, characterized in that: The first plug post, the second plug post, and the plug hole have corresponding non-circular cross-sectional shapes.