Quick connection type dental handpiece

Abstract

The utility model discloses a quick connection type dental handpiece which comprises a transmission handpiece, a bur, a holding handle, a mounting seat, an air inlet channel, a connecting shaft and a buckle shell, the transmission handpiece is used for driving the bur to rotate, and the holding handle is connected with the transmission handpiece; the mounting seat is used for fixing the air inlet channel, the mounting seat is arranged in the holding handle, one end of the air inlet channel is connected with the transmission machine head, and the other end of the air inlet channel is connected with the connecting shaft; the holding handle is provided with a connecting sleeve, an annular groove is formed in the outer wall of the connecting sleeve, and the buckle shell sleeves the connecting shaft and then is connected with the annular groove in a buckled mode. The dental handpiece has the beneficial effects that when a doctor assembles the dental handpiece, the assembly can be completed only by sleeving the connecting shaft through the buckle shell and then connecting the connecting shaft with the annular groove in a buckling manner, so that the assembly efficiency is improved, the vibration generated by the transmission head and the connecting shaft can be effectively avoided, and the practicability is high. And the connection part of the buckle shell and the holding handle is loosened, so that medical negligence is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of oral medical equipment, in particular to a quick-connect dental handpiece. Background Art

[0002] The dental handpiece used in oral clinics is a kind of precise micro-device, which is commonly used in oral medical equipment. At present, the handle and shell of most dental handpieces are assembled by threaded matching.

[0003] However, in actual use of dental mobile phones, when the transmission head and connecting shaft in the dental mobile phone are turned on, the transmission head and the connecting shaft will vibrate. Under such long-term high-frequency vibration, the screws will become loose, thereby causing the outer shell and the handle to loosen. In severe cases, the outer shell and the handle will fall off, causing a medical accident. Utility Model Content

[0004] In view of the above-mentioned defects, the purpose of the utility model is to provide a quick-connect dental handpiece which can prevent the housing from easily falling off the handle and reduce medical risks.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] A quick-connect dental handpiece, comprising a transmission head, a turning needle, a holding handle, a mounting seat, an air inlet channel, a connecting shaft and a snap-on shell, wherein the transmission head is used to drive the turning needle to rotate, and the holding handle is connected to the transmission head; the mounting seat is used to fix the air inlet channel, and the mounting seat is arranged inside the holding handle, one end of the air inlet channel is connected to the transmission head, and the other end of the air inlet channel is connected to the connecting shaft; the holding handle is provided with a connecting sleeve, and the outer wall of the connecting sleeve is provided with an annular groove, and the snap-on shell is connected to the annular groove after the connecting shaft is sleeved by the snap-on shell.

[0007] Preferably, in the above-mentioned quick-connect dental handpiece, a snap-on portion is provided inside the snap-on shell, and the snap-on shell is snap-connected to the annular groove via the snap-on portion.

[0008] Preferably, in the above-mentioned quick-connect dental handpiece, the annular groove is matched with the clamping portion.

[0009] Preferably, in the above-mentioned quick-connect dental handpiece, the diameter of the connecting sleeve is smaller than the diameter of the holding handle, forming a limiting step, and the limiting step abuts against the end surface of the buckle shell.

[0010] Preferably, in the above-mentioned quick-connect dental handpiece, the connecting shaft is provided with a through hole, and the other end of the air inlet passage is connected to the through hole.

[0011] Preferably, in the above-mentioned quick-connect dental handpiece, the outer wall of the holding handle is provided with a plurality of anti-slip grooves.

[0012] Beneficial effects of the utility model:

[0013] Since the holding handle is provided with a connecting sleeve, and the outer wall of the connecting sleeve is provided with an annular groove, when the doctor assembles the dental handpiece, he only needs to cover the connecting shaft with the snap shell and then snap-connect it with the annular groove to complete the assembly. This design improves the assembly efficiency and can effectively avoid the vibration generated by the transmission head and the connecting shaft, which may cause the connection between the snap shell and the holding handle to loosen, thereby causing medical accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of one embodiment of the utility model;

[0015] Figure 2 An exploded view of one embodiment of the utility model;

[0016] Figure 3 An exploded view of another embodiment of the utility model;

[0017] Figure 4 for Figure 2 A partial enlarged view of the AA point in the middle.

[0018] Among them: it includes a transmission head 11, a needle 12, a holding handle 13, a mounting seat 14, an air inlet channel 15, a connecting shaft 16, a buckle shell 17, a connecting sleeve 18, an annular groove 19, a clamping part 20, a limiting step 21, a through hole 22, and an anti-slip groove 23. DETAILED DESCRIPTION

[0019] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0020] In the description of the present invention, it should be understood that the terms "longitudinal", "axial", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] In the description of the present invention, unless otherwise specified, “plurality” means two or more.

[0023] like Figures 1 to 4 As shown, a quick-connect dental handpiece includes a transmission head 11, a needle 12, a holding handle 13, a mounting seat 14, an air inlet channel 15, a connecting shaft 16 and a buckle housing 17. The transmission head 11 is used to drive the needle 12 to rotate, and the holding handle 13 is connected to the transmission head 11; the mounting seat 14 is used to fix the air inlet channel 15, and the mounting seat 14 is arranged inside the holding handle 13. One end of the air inlet channel 15 is connected to the transmission head 11, and the other end of the air inlet channel 15 is connected to the connecting shaft 16; the holding handle 13 is provided with a connecting sleeve 18, and the outer wall of the connecting sleeve 18 is provided with a ring Groove 19, the snap-on shell 17 covers the connecting shaft 16 and is snap-connected with the annular groove 19; since the holding handle 13 is provided with a connecting sleeve 18, and the outer wall of the connecting sleeve 18 is provided with an annular groove 19, when the doctor assembles the dental mobile phone, he only needs to cover the connecting shaft 16 with the snap-on shell 17 and then snap-connect it with the annular groove 19 to complete the assembly. While such a design improves the assembly efficiency, it can also effectively avoid the vibration generated by the transmission head 11 and the connecting shaft 16, which may cause the connection between the snap-on shell 17 and the holding handle 13 to loosen, thus causing medical accidents.

[0024] In the quick-connect dental mobile phone of this embodiment, a snap-on portion 20 is provided inside the snap-on shell 17, and the snap-on shell 17 is snap-connected to the annular groove 19 through the snap-on portion 20; such a design makes the assembly method more convenient. When the snap-on shell 17 and the connecting sleeve 18 need to be assembled, the snap-on portion 20 provided on the inner wall of the snap-on shell 17 can be snapped into the inside of the annular groove 19.

[0025] In the quick-connect dental handpiece of this embodiment, the annular groove 19 is matched with the clamping portion 20 ; such a design facilitates the assembly of the buckle housing 17 and the connecting sleeve 18 .

[0026] In the quick-connect dental handpiece of this embodiment, the diameter of the connecting sleeve 18 is smaller than the diameter of the holding handle 13, forming a limiting step 21, which abuts against the end face of the snap shell 17; such a design can not only limit the snap shell 17, but also have a positioning effect, so that the snap-on portion 20 can be better snapped into the annular groove 19.

[0027] In the quick-connect dental handpiece of this embodiment, the connecting shaft 16 is provided with a through hole 22, and the other end of the air inlet channel 15 is connected to the through hole 22; this facilitates the connection between the air inlet channel 15 and the connecting shaft 16, thereby better providing power to the transmission head 11.

[0028] In some embodiments of the quick-connect dental handpiece, the outer wall of the holding handle 13 is provided with a plurality of anti-skid grooves 23; such a design can play an anti-skid role and can prevent the doctor from dropping the holding handle 13 during the treatment of the patient.

[0029] The technical principle of the present invention is described above in combination with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the protection scope of the present invention in any way. Based on the explanations here, technicians in this field can think of other specific implementation methods of the present invention without creative work, and these methods will fall within the protection scope of the present invention.

Claims

1. A quick-connect dental handpiece, characterized in that: It includes a transmission head, a turning needle, a holding handle, a mounting seat, an air inlet channel, a connecting shaft and a buckle housing, wherein the transmission head is used to drive the turning needle to rotate, and the holding handle is connected to the transmission head; The mounting seat is used to fix the air inlet channel, and the mounting seat is arranged inside the holding handle. One end of the air inlet channel is connected to the transmission head, and the other end of the air inlet channel is connected to the connecting shaft; The holding handle is provided with a connecting sleeve, the outer wall of the connecting sleeve is provided with an annular groove, and the buckle shell is buckled and connected with the annular groove after the connecting shaft is sleeved.

2. The quick-connect dental handpiece according to claim 1, characterized in that: A snap-fitting portion is provided inside the snap-fitting shell, and the snap-fitting shell is snap-fitted with the annular groove via the snap-fitting portion.

3. The quick-connect dental handpiece according to claim 2, characterized in that: The annular groove is matched with the clamping portion.

4. The quick-connect dental handpiece according to claim 1, characterized in that: The diameter of the connecting sleeve is smaller than the diameter of the holding handle, forming a limiting step, and the limiting step abuts against the end surface of the buckle shell.

5. The quick-connect dental handpiece according to claim 1, characterized in that: The connecting shaft is provided with a through hole, and the other end of the air intake passage is communicated with the through hole.

6. The quick-connect dental handpiece according to claim 1 or 4, characterized in that: The outer wall of the holding handle is provided with a plurality of anti-slip grooves.

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