Water quantity control mechanism of dental descaler
By designing a piston needle inside the dental scaler that engages with the conical groove of the switch body, the water flow rate is automatically adjusted, solving the problems of easy contamination of the water flow switch and difficulty in controlling the flow rate in traditional dental scalers, thus achieving precise control and convenient operation.
Patent Information
- Application Number
- CN202423171887.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2034-12-23
AI Technical Summary
Traditional ultrasonic scalers have their water flow switch installed on the outside of the machine casing, which can easily lead to bacterial contamination and makes it difficult to accurately control the water flow rate, resulting in inconvenient operation.
Design a water volume control mechanism for a dental scaler. The mechanism utilizes a piston needle that engages with the conical groove of the switch body to automatically adjust the water flow rate via a drive component, eliminating the need for manual operation. This mechanism is installed inside the dental scaler's housing.
It achieves precise control of the water volume in the dental cleaning machine, avoids internal bacterial contamination, and improves ease of operation and hygiene safety.
Smart Images
Figure CN223759923U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to dental instrument technical field, concretely relates to a dental unit water quantity control mechanism. BACKGROUND
[0002] The ultrasonic dental unit is a medical instrument commonly used in the dental field, which can be used for scraping calculus and dental plaque on the surface of teeth, preparing tooth cavities, and performing root canal treatment. The principle of root canal treatment is to remove most of the infected materials in the root canal by mechanical and chemical methods, and to prevent the occurrence of periapical lesions or promote the healing of already occurred periapical lesions by filling the root canal and sealing the crown.
[0003] At present, in the root canal treatment, the water quantity switch configured on the traditional ultrasonic dental unit is usually installed outside the shell, and the water inflow is adjusted by manually rotating the switch. Since the switch is often manually touched, the interior is easily contaminated by bacteria, which affects oral health, and the water inflow is difficult to accurately control, which is inconvenient to operate and affects the use effect.
[0004] Therefore, it is necessary to improve the defects existing in the prior art to overcome the deficiencies in actual application. CONTENT OF THE UTILITY MODEL
[0005] Based on the above-mentioned shortcomings and deficiencies existing in the prior art, one of the purposes of the utility model is to solve at least one or more of the above-mentioned problems existing in the prior art, in other words, one of the purposes of the utility model is to provide a dental unit water quantity control mechanism which satisfies one or more of the above-mentioned requirements.
[0006] In order to achieve the above-mentioned utility model purposes, the utility model adopts the following technical solutions:
[0007] The utility model provides a dental unit water quantity control mechanism, which comprises a support, a switch body, a driving assembly and a piston needle, the switch body and the driving assembly are installed on the support, the switch body is provided with a water inlet pipe and a water outlet pipe, the piston needle is rotationally matched with the switch body, the first end of the piston needle is transmissionally connected with the driving assembly, and the second end of the piston needle is gap matched with the water inlet pipe; the driving assembly drives the piston needle to rotate, which is used for adjusting the gap between the piston needle and the water inlet pipe, and then controlling the water inflow of the water inlet pipe.
[0008] As a preferred scheme, the driving assembly comprises a driving motor and a coaxial device, the driving motor is installed on the support, the output end of the driving motor is connected with the coaxial device, and the coaxial device is connected with the piston needle.
[0009] As a preferred scheme, the coaxial device is provided with a square groove penetrating in the axial direction, at least one screw hole is formed in the coaxial device, and a jackscrew is installed in the screw hole.
[0010] As a preferred solution, the first end of the square slot is plugged with the output end of the driving motor, the second end of the square slot is plugged with the first end of the piston needle, and the output end of the driving motor and the first end of the piston needle have a limiting distance.
[0011] As a preferred solution, the jackscrew is rotationally matched with the threaded hole, and the jackscrew abuts against the output end of the driving motor or the first end of the piston needle.
[0012] As a preferred solution, the switch body is provided with a tapered hole connected with the water inlet pipe, and the second end of the piston needle is configured as a tapered structure gap matched with the tapered hole.
[0013] As a preferred solution, a limiting nut is mounted on the piston needle, and a limiting locking washer is mounted between the limiting nut and the bracket.
[0014] As a preferred solution, the switch body is provided with an internal thread, and the piston needle is provided with an external thread rotationally connected with the internal thread.
[0015] As a preferred solution, the piston needle is provided with a first flange and a second flange, and a sealing ring is sleeved between the first flange and the second flange.
[0016] As a preferred solution, the switch body is configured with a containing cavity in communication with the water inlet pipe and the water outlet pipe.
[0017] Compared with the prior art, the utility model has the beneficial effects that:
[0018] The utility model provides a kind of dental unit water quantity control mechanism, by the cooperation of piston needle and the tapered slot of switch body, water inflow can be automatically adjusted, it is simple in structure and convenient to operate, the mechanism can be set in the box body of dental unit, without manual operation, can avoid that the inside of dental unit is contaminated by bacteria. BRIEF DESCRIPTION OF DRAWINGS
[0019] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the drawings needed in the embodiment description will be simply introduced as follows, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings of embodiments can also be obtained according to these drawings without creative labor.
[0020] Fig. 1 It is the whole structure schematic diagram of a kind of dental unit water quantity control mechanism of the utility model embodiment;
[0021] Fig. 2It is a sectional view of a water quantity control mechanism of a dental unit according to an embodiment of the present application.
[0022] Fig. 3 It is a structure schematic view of a piston needle according to an embodiment of the present application.
[0023] In the figure, 1 is a support, 2 is a switch body, 21 is a water inlet pipe, 22 is a water outlet pipe, 23 is a conical hole, 24 is a containing cavity, 25 is an internal thread, 3 is a piston needle, 31 is a conical structure, 32 is an external thread, 33 is a first flange, 34 is a second flange, 41 is a driving motor, 42 is a coaxial device, 51 is a limiting nut, 52 is a limiting locking gasket, 6 is a jackscrew, 7 is a sealing ring, 8 is a sensor circuit board, and 9 is an electromagnet. DETAILED DESCRIPTION
[0024] In order to more clearly illustrate the embodiments of the present application, the specific embodiments of the present application will be described below with reference to the drawings. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained according to these drawings without creative labor, and other embodiments can also be obtained by those skilled in the art.
[0025] In the description of the embodiments of the present application, the terms "upper", "lower", "front", "back" and the like orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application. In addition, the terms "first", "second" and the like are only used to distinguish in the description, and have no special meaning.
[0026] According to some embodiments of the present application, as shown in Figs. 1 to 3 A water quantity control mechanism of a dental unit is provided, which comprises a support 1, a switch body 2, a driving assembly and a piston needle 3, the switch body 2 and the driving assembly are installed on the support 1, the switch body 2 is provided with a water inlet pipe 21 and a water outlet pipe 22, the piston needle 3 is rotationally matched with the switch body 2, a first end of the piston needle 3 is in transmission connection with the driving assembly, and a second end of the piston needle 3 is in gap cooperation with the water inlet pipe; the driving assembly drives the piston needle 3 to rotate, so as to adjust the gap between the piston needle 3 and the water inlet pipe 21, and then control the water inflow of the water inlet pipe 21.
[0027] In some specific embodiments, the driving assembly comprises a driving motor 41 and a coaxial device 42, the driving motor 41 is installed on the support 1, an output end of the driving motor 41 is connected with the coaxial device 42, and the coaxial device 42 is connected with the piston needle 3.
[0028] In some specific embodiments, the switch body 2 is provided with an internal thread 25, and the piston needle 3 is provided with an external thread 32, which is rotationally connected with the internal thread 25 to ensure that the piston needle 3 can move axially relative to the switch body 1.
[0029] Specifically, the coaxial device 42 is provided with a square slot in the axial direction, and the coaxial device 42 is provided with at least one screw hole, in which a jack 6 is installed, which is rotationally matched with the screw hole. The inner end of the jack 6 extends into the square slot, so that the jack 6 abuts against the output end of the driving motor 41 or the first end of the piston needle 3, to ensure that the piston needle 3 can move axially while rotating.
[0030] Further, the first end of the square slot is insertedly matched with the output end of the driving motor 41, and the second end of the square slot is insertedly matched with the first end of the piston needle 3. There is a limiting distance between the output end of the driving motor 41 and the first end of the piston needle 3. Through the limiting distance, the space for axial movement can be ensured when the piston needle 3 moves axially along the square slot or the square slot moves axially along the output end of the driving motor 41.
[0031] In some specific embodiments, the coaxial device 42 is provided with a screw hole in the radial direction close to the first end, in which a jack 6 is installed, which abuts against the output end of the driving motor 41. At this time, the driving motor 41 and the coaxial device 42 are relatively fixed, the second end of the coaxial device 42 is insertedly matched with the piston needle 3, and the piston needle 3 can move axially along the square slot of the coaxial device 42.
[0032] In some specific embodiments, the coaxial device 42 is provided with a screw hole in the radial direction close to the second end, in which a jack 6 is installed, which abuts against the first end of the piston needle 3. At this time, the piston needle 3 and the coaxial device 42 are relatively fixed, the first end of the coaxial device 42 is insertedly matched with the output end of the driving motor 41, and the square slot of the coaxial device 42 can move axially along the output end of the driving motor 41.
[0033] It should be noted that when the coaxial device 42 is provided with two screw holes, only one of the screw holes needs to be installed with a jack 6 and abutted against the piston needle 3 or the output end of the driving motor 41. When the driving motor 41 works, the piston needle 3 can realize synchronous rotation and axial movement.
[0034] In some specific embodiments, the piston needle 3 is installed with a limiting nut 51, and the limiting nut 51 and the bracket 1 are installed with a limiting locking washer 52. The limiting nut 51 is sleeved on the piston needle 3, and the limiting locking washer 52 is installed between the limiting nut 51 and the side wall of the bracket 1, which can avoid the relative movement of the switch body 2 and the bracket 1, and ensure that the switch body 2 is fixed on the bracket 1.
[0035] In some embodiments, the switch body 2 is provided with a containing cavity 24, which is connected with the water inlet pipe 21 and the water outlet pipe 22, and water is supplied into the containing cavity 24 through the water inlet pipe 21 and flows out through the water outlet pipe 22.
[0036] In some embodiments, the switch body 2 is provided with a tapered hole 23 connected with the water inlet pipe 21, and the second end of the piston needle 3 is provided with a tapered structure 31 which is in clearance fit with the tapered hole 23. When the piston needle 3 moves axially, the clearance between the tapered structure 31 and the tapered hole 23 can be controlled, and thus the flow rate of the water flow can be controlled.
[0037] In some embodiments, the piston needle 3 is provided with a first flange 33 and a second flange 34, and a sealing ring 7 is sleeved between the first flange 33 and the second flange 34. The sealing ring 7 can ensure that the water in the containing cavity 24 of the switch body flows out along the axial gap between the piston needle 2 and the switch body 1, and ensure that the water flow in the containing cavity 24 only flows out through the water outlet pipe 22.
[0038] In some embodiments, a sensor circuit board 8 is installed on the bracket 1, and two electromagnets 9 are installed on the coaxial device 42. The sensor circuit board 8 cooperates with the two electromagnets 9 and is connected with an electric control system, and is used to control the start or stop of the driving motor 41.
[0039] In the actual use, the coaxial device 42 is driven to rotate by the driving motor 41, and the coaxial device 42 drives the piston needle 3 to rotate. Since the piston needle 3 is threadedly connected with the switch body 2, the piston needle 3 can move axially synchronously, and thus the gap between the tapered structure 31 of the piston needle 3 and the tapered hole 23 of the switch body 2 can be adjusted, so that the amount of water flowing into the containing cavity 24 through the water inlet pipe 21 can be controlled. The whole process does not need manual operation, and the control precision can be improved.
[0040] According to some embodiments of the present application, a water flow control mechanism of a dental unit is provided, which can automatically adjust the water flow by the cooperation of the piston needle and the tapered groove of the switch body. The mechanism is simple in structure and convenient to operate, can be arranged inside the box body of the dental unit, does not need manual operation, and can avoid the contamination of bacteria in the dental unit.
[0041] In the description of the embodiments of the present application, unless specifically defined and limited, the terms "mounting", "connection", "connecting", "fixed", and the like should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integrated; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.
[0042] The above only describes the preferred embodiments and principles of the present application in detail. For those skilled in the art, the specific implementation manner can be changed according to the idea provided by the present application, and these changes should also be considered as the protection scope of the present application.
Claims
1. A water volume control mechanism for a dental scaler, characterized in that, The utility model provides a water flow control device, comprising a support, a switch body, a driving assembly and a piston needle, the switch body and the driving assembly are installed on the support, the switch body is equipped with a water inlet pipe and a water outlet pipe, the piston needle is rotationally matched with the switch body, the first end of the piston needle is transmission connected with the driving assembly, and the second end of the piston needle is gap matched with the water inlet pipe.
2. A water control mechanism for a dental unit according to claim 1, wherein, The driving assembly comprises a driving motor and a coaxial device, the driving motor is installed on the support, the output end of the driving motor is connected with the coaxial device, and the coaxial device is connected with the piston needle.
3. A water control mechanism for a dental unit according to claim 2, wherein, The coaxial device is provided with a square slot in the axial direction, at least one screw hole is arranged on the coaxial device, and a jack screw is arranged in the screw hole.
4. A water control mechanism for a dental unit according to claim 3, wherein The first end of the square slot is inserted and matched with the output end of the driving motor, the second end of the square slot is inserted and matched with the first end of the piston needle, and the output end of the driving motor and the first end of the piston needle are provided with a limiting distance.
5. A water control mechanism for a dental unit according to claim 3, wherein, The jack screw is rotationally matched with the screw hole, and the jack screw abuts against the output end of the driving motor or the first end of the piston needle.
6. A water control mechanism for a dental unit according to claim 1, wherein, The switch body is provided with a tapered hole, the tapered hole is connected with the water inlet pipe, the second end of the piston needle is configured as a tapered structure, and the tapered structure is gap matched with the tapered hole.
7. A water control mechanism for a dental unit according to claim 1, wherein, A limiting nut is arranged on the piston needle, and a limiting locking gasket is arranged between the limiting nut and the support.
8. A water control mechanism for a dental unit according to claim 1, wherein, The switch body is provided with an internal thread, the piston needle is provided with an external thread, and the external thread is rotationally connected with the internal thread.
9. A water control mechanism for a dental unit according to claim 8, wherein, The piston needle is provided with a first flange and a second flange, and a sealing ring is sleeved between the first flange and the second flange.
10. A water control mechanism for a dental unit according to claim 1, wherein, The switch body is provided with a containing cavity, and the containing cavity is communicated with the water inlet pipe and the water outlet pipe.