Disposable dental handpiece with illumination
By embedding a flat battery compartment within a disposable dental handpiece and combining it with a power slot for power supply, the problems of limited button battery power and protruding battery compartment are solved, achieving stable power supply and convenient operation, and avoiding treatment interruption.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FOSHAN BIYING MEDICAL EQUIP CO LTD
- Filing Date
- 2025-06-05
- Publication Date
- 2026-06-02
AI Technical Summary
Existing disposable dental handpieces suffer from problems such as limited button battery power and protruding battery compartment, leading to inflexible operation and treatment interruptions when the battery runs out.
Design a disposable dental handpiece with illumination function. It adopts a flat battery compartment embedded in the handle, combined with a power slot for power supply. It provides two power supply methods: button battery and external power supply, ensuring stable power and convenience.
It achieves stable and convenient power supply in different scenarios, avoids interruption of treatment due to power depletion, and improves operational flexibility and accuracy.
Smart Images

Figure CN224307420U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dental handpiece technology, and in particular to a disposable dental handpiece with illumination function. Background Technology
[0002] Currently, most disposable dental handpieces on the market use button batteries as their power source, but such products have a significant drawback in their design—the battery compartment of the button battery protrudes from the surface of the handle.
[0003] This design raises a series of problems. Firstly, the protruding battery compartment increases the overall size of the handpiece, requiring more space for the dentist and significantly reducing operational flexibility and precision. Secondly, the button battery itself has a limited capacity; with continued use of the dental handpiece, the power will gradually decrease until it is completely depleted. When the button battery runs out, the disposable dental handpiece cannot continue operating, which could force the interruption of ongoing dental treatment, causing unnecessary pain to the patient and potentially delaying the treatment process. Utility Model Content
[0004] The purpose of this invention is to provide a disposable dental handpiece with illumination function to solve one or more technical problems existing in the prior art, and at least provide a beneficial option or create conditions.
[0005] The technical solution adopted to solve the above-mentioned technical problems is as follows:
[0006] This utility model provides a disposable dental handpiece with lighting function, including a handle and a head. The two ends of the handle are an operating end and a connecting end, respectively. The end face of the connecting end is provided with an electrical connector groove. The end face of the connecting end is also provided with an air inlet connector, an exhaust connector, an atomizing connector, and a water inlet connector. A battery compartment is embedded in the handle. The battery compartment is flat and contains a button battery. The battery compartment has a compartment opening, which is elongated. The operating end is provided with a light. The electrical connector groove and the button battery are electrically connected to the light. The head is connected to the operating end.
[0007] The beneficial effects of this utility model are:
[0008] The illumination light of the disposable dental handpiece of this application can be powered by either a button battery or an electrical socket. These two power supply methods are adaptable to different scenarios. For example, when an adapter compatible with the disposable dental handpiece is available, the adapter can be directly connected to the electrical socket for external power supply, offering the advantage of stable power supply. When no compatible adapter is available, button battery power is used, providing the advantage of convenient power supply. Power supply via the electrical socket can also serve as a backup power supply for the button battery.
[0009] As a further improvement to the above technical solution, the disposable dental handpiece also includes a connecting block and a terminal. The terminal is snapped into the connecting block, the connecting block is sleeved on the air inlet connector, the exhaust connector, the atomizing connector, and the water inlet connector, and the terminal is inserted into the electrical connector slot.
[0010] As a further improvement to the above technical solution, the connecting block is provided with an air inlet, an exhaust inlet, an atomizing inlet, a water inlet, and an electrical inlet. The terminal is plugged into the electrical inlet, and the air inlet connector, exhaust connector, atomizing connector, and water inlet connector are respectively fitted into the air inlet, exhaust inlet, atomizing inlet, and water inlet.
[0011] As a further improvement to the above technical solution, the number of terminals and electrical sockets are both two.
[0012] As a further improvement to the above technical solution, the disposable dental handpiece also includes a fixing block, the two terminals are fixed to the fixing block, and the fixing block is snapped onto the end face of the connecting end.
[0013] As a further improvement to the above technical solution, the connecting block is an elastic structure.
[0014] As a further improvement to the above technical solution, the extension surface of the button battery is located on the axis of the handle.
[0015] As a further improvement to the above technical solution, the button battery is snapped into the battery compartment, and the inner side of the compartment cover abuts against the circumferential surface of the button battery.
[0016] As a further improvement to the above technical solution, the battery compartment is provided with a first contact surface and a second contact surface that respectively contact the two end faces of the button battery. The first contact surface is provided with an electrode sheet, and the second contact surface is provided with a fixing spring sheet.
[0017] As a further improvement to the above technical solution, the battery compartment is fitted with a compartment cover, which is elongated. Attached Figure Description
[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments;
[0019] Figure 1 This is a schematic diagram of an embodiment of a disposable dental handpiece with illumination function provided by this utility model;
[0020] Figure 2 This is a cross-sectional schematic diagram of an embodiment of a disposable dental handpiece with illumination function provided by this utility model;
[0021] Figure 3This is a partial enlarged view of an embodiment of a disposable dental handpiece with illumination function provided by this utility model.
[0022] Figure label:
[0023] Handle 100, electrical connector 110, air inlet connector 120, exhaust connector 130, atomizing connector 140, water inlet connector 150, battery compartment 160, compartment opening 161, compartment cover 162, button battery 170, lighting lamp 180, head 200, connecting blocks 300 and 400, electrical socket 410, fixing block 500. Detailed Implementation
[0024] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0025] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0026] In the description of this utility model, if there are words such as "several", they mean one or more, "multiple" means two or more, "greater than", "less than", "exceeding" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself.
[0027] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.
[0028] Reference Figures 1 to 3 This utility model provides a disposable dental handpiece with illumination function, and the following embodiments are provided:
[0029] A disposable dental handpiece with illumination includes a handle 100 and a head 200. The handle 100 has an operating end and a connecting end at its two ends, respectively. The head 200 is connected to the operating end and has a needle mounted on it. The operating end is equipped with an illumination lamp 180, which is positioned opposite the cutting position of the needle to provide brightness for the dentist's observation and operation. The illumination lamp 180 can protrude from the outer peripheral wall of the handle 100 or be embedded within it, reducing visual interference and further facilitating the dentist's operation.
[0030] To reduce costs, disposable dental handpieces typically use button batteries 170. Since button batteries 170 usually have a circular opening that is slightly larger than the button battery itself, and the handle 100 of a disposable dental handpiece is not large enough to accommodate a circular opening, conventional disposable dental handpieces have a protruding battery compartment 160 with a circular opening to facilitate the installation of button batteries 170. This application embeds a battery compartment 160 within the handle 100. The battery compartment 160 is flat and has an opening 161, which is elongated. A button battery 170 is installed in the battery compartment 160 and inserted into the battery compartment 160 through the opening 161. The battery compartment 160 has a cover 162, which is elongated. Both the cover and the button battery are electrically connected to the lighting lamp 180. This battery mounting structure allows the battery compartment 160 to be completely embedded inside the handle 100 without affecting the doctor's operational flexibility and precision.
[0031] This application can also be powered by an electrical slot. Specifically, the end face of the connection end is provided with an electrical plug slot 110, and the end face of the connection end is also provided with an air inlet connector 120, an exhaust connector 130, an atomizing connector 140, and a water inlet connector 150. The electrical plug slot 110 is also electrically connected to the lighting lamp 180. The conversion connector is connected to the connection end, and the electrical connector of the conversion connector is electrically connected to the electrical plug slot 110. An external power supply provides power to the lighting lamp 180 through the electrical plug slot 110.
[0032] Therefore, the illumination 180 of the disposable dental handpiece of this application can be powered by either a button battery 170 or an electrical socket. These two power supply methods are adaptable to different scenarios. For example, when an adapter compatible with the disposable dental handpiece is available, the adapter can be directly connected to the electrical socket for external power supply, offering the advantage of stable power supply. When no compatible adapter is available, the button battery 170 is used for power supply, offering the advantage of convenient power supply. In this case, the handle 100 can be directly connected to a standard adapter and used normally. Power supply via the electrical socket can also serve as a backup power supply for the button battery 170. The disposable dental handpiece of this application has the advantage of ease of use.
[0033] Further, a connection block 300 and terminals 400 are also provided. The terminals 400 are snap-fitted to the connection block 300. The connection block 300 is sleeved on the air inlet joint 120, the air exhaust joint 130, the atomization joint 140, and the water inlet joint 150. The terminals 400 are inserted into the electrical insertion slots 110. During use, insert the terminals 400 into the connection block 300, then sleeve the connection block 300 on the connection end of the disposable dental handpiece, and then insert the adapter into the connection end of the disposable dental handpiece. At the same time, the air inlet joint 120, the air exhaust joint 130, the atomization joint 140, and the water inlet joint 150 are connected to various channels of the adapter, and the external electric conductivity is led to the handle 100 of the disposable dental handpiece. When there is no suitable adapter, during use, remove the terminals 400 from the adapter block, then sleeve the adapter block on the connection end of the disposable dental handpiece, and then insert the adapter base into the connection end of the disposable dental handpiece, and it can also be normally connected and used.
[0034] Specifically, the connection block 300 is provided with an air inlet hole, an air exhaust hole, an atomization hole, a water inlet hole, and an electrical hole 410. The terminals 400 are inserted into the electrical hole 410. The air inlet joint 120 is sleeved in the air inlet hole, the air exhaust joint 130 is sleeved in the air exhaust hole, the atomization joint 140 is sleeved in the atomization hole, and the water inlet joint 150 is sleeved in the water inlet hole. Fixing the connection block 300 to the connection end of the handle 100 of the disposable dental handpiece can further fix the terminals 400, improve the adaptability of the handle 100 of the disposable dental handpiece, and enhance the structural firmness at the same time. Among them, the connection block 300 is made of an elastic material, and this material can be a rubber material, which can not only achieve quick installation and disassembly, but also enhance the connection stability through elastic deformation.
[0035] Further, the number of terminals 400 is two, and the connection block 300 is correspondingly provided with two electrical holes 410. Setting two terminals 400 can distinguish the positive and negative poles. The two terminals 400 can meet more complex electrical connection requirements, and the connection is more firm and not easy to loosen. Of course, in some other embodiments, one terminal 400 can also be used.
[0036] Further, when the two connection terminals 400 are disassembled, there is a problem that they are easy to lose. Therefore, a fixing block 500 is also provided. The two terminals 400 are fixed to the fixing block 500. The two terminals 400 penetrate through the fixing block 500. The connection end is provided with a snap-fitting groove fixed to the fixing block 500. When the terminals 400 are inserted into the electrical insertion slots 110, the fixing block 500 is snap-fitted into the snap-fitting groove. The fixing block 500 can further fix the terminals 400 on the one hand, and on the other hand, when the terminals 400 are not used, the two terminals 400 can be fixed together and are not easy to lose.
[0037] Further, in order to hide the button cell 170 inside the handle 100 as much as possible, the extension plane of the button cell 170 passes through the axis of the handle 100, that is, the extension plane of the battery compartment 160 passes through the axis of the handle 100. The button cell 170 is located at the maximum cross-sectional position of the handle 100, so that the volume of the button cell 170 that can be installed is maximized, and at the same time, the installation of the button cell 170 does not affect the installation of other circuits inside the handle 100, such as the intake pipe, the return air pipe, and the atomization pipe. Of course, when the radial width of the handle 100 is sufficient, the extension plane of the button cell 170 can also be set at other positions.
[0038] Further, the button cell 170 is snap-fitted into the battery compartment 160, and the inner side surface of the compartment cover 162 abuts against the circumferential surface of the button cell 170, which further fixes the button cell 170.
[0039] Further, the battery compartment 160 is provided with a first abutting surface and a second abutting surface that respectively contact the two end surfaces of the button cell 170. The first abutting surface is provided with an electrode sheet, and the second abutting surface is provided with a fixing elastic sheet. When the button cell 170 is snapped into the battery compartment 160, the two end surfaces of the button cell 170 respectively abut against the first abutting surface and the second abutting surface. At the same time, the fixing elastic sheet fixes the button cell 170 more firmly, improves the conductivity, and reduces the occurrence of poor contact.
[0040] Further, the inner wall of the battery compartment 160 is provided with an arc-shaped groove, and the shape of the arc-shaped groove matches the circumferential side surface of the button cell 170, which is used to snap-fix the button cell 170, so that the button cell 170 can be stably snapped in, preventing longitudinal displacement or晃动. When the compartment cover 162 is closed, the inner side of the compartment cover 162 abuts against the circumferential surface of the button cell 170. When the compartment cover 162 is closed, the inner side surface of the compartment cover 162 abuts against the circumferential surface of the battery to further fix the button cell 170, improves the conductivity, and reduces the occurrence of poor contact.
[0041] Further, to ensure that the compartment cover 162 can be stably installed on the battery compartment 160 and can be easily disassembled, the compartment cover 162 is connected to the battery compartment 160 by a snap-fit method. Specifically, the compartment cover 162 is provided with a snap-fit structure specifically adapted to the battery compartment 160. At the same time, considering that in actual use, operations such as replacing the battery and maintaining the inside of the battery compartment 160 may be required, it is necessary to easily remove the compartment cover 162 from the battery compartment 160.
[0042] The installation structure of the button cell 170 in this application not only does not increase the original volume of the handle 100, which is convenient for doctors to operate, but also has the characteristics of firmly and reliably fixing the button cell 170, and the operations of removing and installing the button cell 170 are very convenient.
[0043] The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.
Claims
1. A disposable dental handpiece with illumination function, characterized in that, include: The handle has an operating end and a connecting end at each end. The connecting end has an electrical connector groove on its end face. The connecting end also has an air inlet connector, an exhaust connector, an atomizing connector, and a water inlet connector protruding from its end face. The handle has a battery compartment embedded in it. The battery compartment is flat and contains a button battery. The battery compartment has a compartment opening that is elongated. The operating end has a light. The electrical connector groove and the button battery are both electrically connected to the light. The machine head is connected to the control terminal.
2. A disposable dental handpiece with illumination function according to claim 1, characterized in that: The disposable dental handpiece also includes a connecting block and a terminal. The terminal is snapped into the connecting block, and the connecting block is sleeved on the air inlet connector, the exhaust connector, the atomizing connector, and the water inlet connector. The terminal is inserted into the electrical connector slot.
3. A disposable dental handpiece with illumination function according to claim 2, characterized in that: The connecting block is provided with an air inlet, an exhaust inlet, an atomizing inlet, a water inlet, and an electrical inlet. The terminal is plugged into the electrical inlet, and the air inlet connector, exhaust connector, atomizing connector, and water inlet connector are respectively fitted into the air inlet, exhaust inlet, atomizing inlet, and water inlet.
4. A disposable dental handpiece with illumination function according to claim 3, characterized in that: The number of terminals and electrical sockets is two each.
5. A disposable dental handpiece with illumination function according to claim 4, characterized in that: The disposable dental handpiece also includes a fixing block, to which the two terminals are fixed, and the fixing block is snapped into the end face of the connecting end.
6. A disposable dental handpiece with illumination function according to claim 5, characterized in that: The connecting block is an elastic structure.
7. A disposable dental handpiece with illumination function according to claim 1, characterized in that: The extended surface of the button battery is located on the axis of the handle.
8. A disposable dental handpiece with illumination function according to claim 7, characterized in that: The button battery is snapped into the battery compartment, which is fitted with a compartment cover. The inner side of the compartment cover abuts against the circumferential surface of the button battery.
9. A disposable dental handpiece with illumination function according to claim 8, characterized in that: The battery compartment has a first contact surface and a second contact surface that respectively contact the two end faces of the button battery. The first contact surface is provided with an electrode plate, and the second contact surface is provided with a fixing spring.
10. A disposable dental handpiece with illumination function according to claim 8, characterized in that: The bin cover is long and narrow.