Dental handpiece fixing and locking device

Abstract

The utility model provides a dental handpiece fixing and locking device, which belongs to the field of medical instruments and comprises a fixing ring, a locking nut and a plurality of inner lining plates, the locking nut is inserted on the fixing ring, the plurality of inner lining plates are arranged on the inner side wall of the locking nut in a form of a circumferential array, and the inner lining plates are arranged on the inner side wall of the locking nut during working. The outer side walls of the plurality of inner lining plates abut against the inner side wall of the locking nut, and the inner side walls of the plurality of inner lining plates are in interference fit with the dental handpiece. The dental handpiece aims at solving the problem that in the prior art, a dental handpiece is difficult to lock and fix. The dental handpiece has the technical effects that the dental handpiece can be firmly locked and fixed, can be repeatedly used, and is very convenient and rapid.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical equipment technical field especially, relate to a dental handpiece fixed locking device. BACKGROUND

[0002] The dental handpiece is used for the medical equipment of hospital stomatology or dental clinic clamping high speed dental drill needle and carries out drilling, grinding tooth and other operations.

[0003] Because of the special shape of the dental handpiece handle, the dental handpiece is currently connected with the handheld navigation tracer or the mechanical arm end of the dental implant robot, and is connected by welding a fixing ring on the handle of the dental handpiece or using a press to press a fixing ring.

[0004] The existing connection mode has the following problems:

[0005] First, when the dental handpiece fails, the fixing ring must be removed by professional equipment, and the dental handpiece will be damaged, resulting in a complex maintenance process of the dental handpiece.

[0006] Second, the fixing ring cannot be reused after being removed, which also causes waste. INVENTION CONTENTS

[0007] The utility model provides a dental handpiece fixed locking device to solve the defect that the dental handpiece locking of prior art is difficult, realizes firm locking of dental handpiece and can be reused, and is very convenient and fast.

[0008] The utility model provides a dental handpiece fixed locking device, including fixed ring, locking nut and multiple inner lining boards, locking nut is inserted in fixed ring, multiple inner lining boards are set up on the inner side wall of locking nut in the form of circumferential array, when working, the outer side wall of multiple inner lining boards all is in abutment with the inner side wall of locking nut, the inner side wall of multiple inner lining boards all is in interference fit with dental handpiece.

[0009] In some embodiments of the utility model, the fixed ring includes a first connecting portion, a second connecting portion, and a wrench positioning portion, the first connecting portion is connected to the second connecting portion, the second connecting portion is provided with the wrench positioning portion around the periphery, and the second connecting portion is screwed to the locking nut.

[0010] In some embodiments of the utility model, the locking nut includes a wrench assembly portion and an outer connecting portion, the wrench assembly portion is connected to the outer connecting portion, the outer connecting portion is threadedly connected to the second connecting portion, and the outer side wall of the multiple inner lining boards is in abutement with the inner side wall of the outer connecting portion; the shape enclosed by the inner side wall of the outer connecting portion is a circular truncated cone.

[0011] In some embodiments of the utility model, the inner side wall of the spanner assembly part is provided with at least one gap.

[0012] In some embodiments of the utility model, the outer surface of each inner lining plate is a conical surface.

[0013] In some embodiments of the utility model, the first spanner is further included, and one end of the first spanner is screwed with the first connecting part during work.

[0014] In some embodiments of the utility model, the first spanner includes a first body part and a sleeve part, one end of the first body part is provided with the sleeve part, and the sleeve part is screwed with the first connecting part during work.

[0015] In some embodiments of the utility model, the first spanner further includes a first connecting ring, the first connecting ring is arranged on the side of the first body part away from the sleeve part, and a first clamping hole is formed in the first connecting ring.

[0016] In some embodiments of the utility model, the second spanner is further included, one end of the second spanner is clamped with the spanner assembly part when assembling the dental handpiece, and the other end of the second spanner is clamped with the spanner positioning part when disassembling the first spanner.

[0017] In some embodiments of the utility model, the second spanner includes a second body part, a second connecting ring and a connecting lug, a second clamping hole is formed in the second connecting ring, and a clamping groove is formed in the connecting lug.

[0018] When assembling the dental handpiece, the second connecting ring is clamped with the spanner positioning part through the second clamping hole.

[0019] When disassembling the first spanner, the connecting lug is clamped with the spanner assembly part through the clamping groove.

[0020] In summary, the present application has the following beneficial technical effects: the position of the dental handpiece connected with the handheld navigation tracer or the mechanical arm end of the dental implant robot can be limited through the arrangement of the fixing ring, then the dental handpiece is locked and fixed by gradually extruding the outer surface of the handle ring of the dental handpiece through the plurality of inner lining plates driven by the locking nut, and the fixing ring is clamped or screwed with the handheld navigation tracer or the dental implant robot through the end away from the locking nut, which is convenient and fast, can be reused, is more conducive to holding in the handheld state, reduces the weight of the hand holding, and is better in stability through the fixation of the handle ring of the dental handpiece. BRIEF DESCRIPTION OF DRAWINGS

[0021] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the detailed description of the preferred embodiments below. The drawings are for purposes of illustration only and are not intended to limit the present inventive subject matter in any way. Further, in the drawings, like reference numerals are used to denote like parts throughout the several views. In the drawings:

[0022] Figure 1 A first view of a perspective view of a dental handpiece fixing and locking device according to some embodiments of the present inventive subject matter is schematically shown.

[0023] Figure 2 A second view of a perspective view of a dental handpiece fixing and locking device according to some embodiments of the present inventive subject matter is schematically shown.

[0024] Figure 3 A cross-sectional view of a dental handpiece fixing and locking device according to some embodiments of the present inventive subject matter is schematically shown.

[0025] Figure 4 A cross-sectional view of a dental handpiece fixing and locking device according to some embodiments of the present inventive subject matter without a first wrench and a second wrench is schematically shown.

[0026] Figure 5 A perspective view of a dental handpiece fixing and locking device according to some embodiments of the present inventive subject matter without a first wrench and a second wrench is schematically shown.

[0027] Figure 6 A perspective view of a fixing ring of a dental handpiece fixing and locking device according to some embodiments of the present inventive subject matter is schematically shown.

[0028] Figure 7 A perspective view of a locking nut of a dental handpiece fixing and locking device according to some embodiments of the present inventive subject matter is schematically shown.

[0029] Figure 8 A first view of a perspective view of an inner lining plate of a dental handpiece fixing and locking device according to some embodiments of the present inventive subject matter is schematically shown.

[0030] Figure 9 A second view of a perspective view of an inner lining plate of a dental handpiece fixing and locking device according to some embodiments of the present inventive subject matter is schematically shown.

[0031] Figure 10 A perspective view of a first wrench of a dental handpiece fixing and locking device according to some embodiments of the present inventive subject matter is schematically shown.

[0032] Figure 11A perspective view of a second wrench of the dental handpiece fixing and locking device according to some embodiments of the present application is shown schematically.

[0033] Reference signs:

[0034] 1, fixing ring, 11, wrench positioning portion, 12, first connecting portion, 13, step, 14, second connecting portion, 2, locking nut, 21, wrench assembly portion, 23, outer connecting portion, 24, clearance gap, 3, inner lining plate, 4, first wrench, 41, first body portion, 42, first connecting ring, 43, sleeve portion, 44, blocking portion, 45, first clamping hole, 46, circular hole, 5, second wrench, 51, second body portion, 52, second connecting ring, 53, connecting lug, 54, clamping groove, 55, second clamping hole, 6, dental handpiece. DETAILED DESCRIPTION

[0035] Exemplary embodiments of the present disclosure will be described hereinafter with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be embodied in various forms without being limited by the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the present disclosure to those skilled in the art.

[0036] It should be understood that the terms used herein are merely for the purpose of describing particular example embodiments and are not intended to be limiting. As used herein, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "includes," and "including" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order in which they are described, unless specifically identified as an order dependent step. It is also to be understood that additional or alternative steps can be employed.

[0037] Although the terms first, second, third, and the like can be used herein to describe various elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can be only used to differentiate one element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates otherwise, terms such as "first," "second," and the like are used herein to describe a variety of elements, components, regions, layers and / or sections, and do not imply an order or sequence unless specifically so defined by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of example embodiments.

[0038] For ease of description, spatial relative terms can be used herein to describe a relationship of one element or feature to another element or feature as shown in the drawings, such as "inner", "outer", "inside", "outside", "lower", "below", "upper", "above", and the like. Such spatial relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the drawings. For example, if the device in the drawings is turned over, an element described as "below" or "beneath" another element or feature would then be oriented "above" or "over" the other element or feature. Thus, the example term "below" can encompass both an orientation of above and below. The device can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0039] As shown in the drawings, Figures 1 to 11 According to the embodiments of the first aspect of the present application, a dental handpiece fixing and locking device is provided, which comprises a fixing ring 1, a locking nut 2 and a plurality of inner lining plates 3. The locking nut 2 is inserted into the fixing ring 1, and the plurality of inner lining plates 3 are arranged in a circumferential array on the inner side wall of the locking nut 2. In operation, the outer side wall of each inner lining plate 3 abuts against the inner side wall of the locking nut 2, and the inner side wall of each inner lining plate 3 is in interference fit with the dental handpiece 6.

[0040] In the above embodiments, it should be noted that the number of inner lining plates 3 can be two, three, four or more. The plurality of inner lining plates 3 can be combined in the shape of a circular truncated cone, that is, the outer surface of each inner lining plate 3 is a conical surface, and the shape of the inner side wall surface of each inner lining plate 3 is the same as the outer surface of the dental handpiece 6. Specifically, the shape and size of the inner lining plate 3 are set and made according to the actual shape and required size of the dental handpiece 6.

[0041] The above embodiments achieve the following technical effects. The position of the connection of the dental handpiece 6 with the handheld navigation tracker or the mechanical arm end of the dental implant robot is limited by the fixing ring 1. Then, the plurality of inner lining plates 3 are gradually pressed against the outer surface of the handle ring of the dental handpiece 6 to lock and fix the dental handpiece 6, and then the end of the fixing ring 1 away from the locking nut 2 is connected with the handheld navigation tracker or the dental implant robot through clamping or screwing, which is more convenient and fast, and is more conducive to holding in the handheld state, reduces the weight of the hand holding, and the handle ring of the dental handpiece 6 is fixed, which is more stable.

[0042] Optionally, as shown in the drawings, Figures 1 to 6As shown, the fixing ring 1 comprises a first connecting part 12, a second connecting part 14 and a wrench positioning part 11, the first connecting part 12 is connected with the second connecting part 14, the outer periphery of the second connecting part 14 is provided with the wrench positioning part 11, and the second connecting part 14 is screwed with the locking nut 2.

[0043] In the above optional embodiment, it should be noted that the first connecting part 12, the second connecting part 14 and the wrench positioning part 11 are integrally formed or welded; a step 13 is formed between the inner side wall of the first connecting part 12 and the inner side wall of the second connecting part 14, that is, the wall thickness of the first connecting part 12 is thicker to ensure the strength and rigidity of the fixing ring 1, and then the wall thickness of the second connecting part 14 is relatively small to meet the lightweight requirement, and the step 13 is formed to also generate friction between the locking nut 2 and the step 13 after the locking nut 2 is screwed with the second connecting part 14 to increase the firmness of the connection.

[0044] The beneficial effects of the above optional embodiment are that the wrench can be conveniently clamped on the fixing ring 1 through the setting of the wrench positioning part 11 to operate the fixing ring 1 to drive the second connecting part 14 to be screwed with the locking nut 2, thereby increasing the convenience of operation, and the first connecting part 12 can be used to quickly and reliably connect with the end of a mechanical arm or a handheld navigation tracker through the setting of the first connecting part 12.

[0045] Optionally, as shown in Figures 1 to 5 and Figure 7 , the locking nut 2 comprises a wrench assembly part 21 and an outer connecting part 23, the wrench assembly part 21 is connected with the outer connecting part 23, the outer connecting part 23 is threadedly connected with the second connecting part 14, and the outer side walls of the plurality of inner lining plates 3 are all abutted with the inner side wall of the outer connecting part 23; the shape enclosed by the inner side wall of the outer connecting part 23 is a circular truncated cone.

[0046] In the above optional embodiment, it should be noted that the outer periphery of the first connecting part 12 is provided with external threads, the inner side wall of the second connecting part 14 is provided with internal threads, the outer periphery of the outer connecting part 23 is provided with external threads, and the wrench assembly part 21 and the outer connecting part 23 are integrally formed or welded.

[0047] The beneficial effects of the above optional embodiment are that the wrench can be conveniently clamped on the locking nut 2 through the setting of the wrench assembly part 21 to achieve reliable connection of the locking nut 2 with the fixing ring 1, and the outer connecting part 23 is provided to achieve reliable fixation of the inner lining plate 3 with the dental handpiece 6 and reliable connection of the outer connecting part 23 with the fixing ring 1.

[0048] Optionally, as shown in Figures 1 to 5 and Figure 7 , the inner side wall of the wrench assembly part 21 is provided with at least one accommodation gap 24.

[0049] It should be noted that the at least one let-out notch 24 is arranged in a circumferential array.

[0050] The optional embodiment has the beneficial effect that the interference between the locking nut 2 and the nail on the dental handpiece 6 is avoided when the dental handpiece 6 is fixed, and the firmness and reliability of the fixed locking of the dental handpiece 6 are ensured.

[0051] Optionally, as shown in Figures 1 to 5 , Figure 8 and Figure 9 , the outer surface of each inner lining plate 3 is a conical surface.

[0052] In the above-mentioned optional embodiment, it should be noted that the cross-sectional shape of each inner lining plate 3 is curved and the same as the shape of the handle portion of the dental handpiece 6.

[0053] The optional embodiment has the beneficial effect that the outer surface of each inner lining plate 3 is a conical surface, which can gradually increase the tightening force between the inner lining plate 3 and the dental handpiece 6, thereby ensuring the firmness of the connection while ensuring the convenience of the connection. In addition, the inner lining plate 3 with a curved surface matching the handle portion of the dental handpiece 6 is more stable when in contact with the handle portion of the dental handpiece 6, thereby ensuring the reliability of the connection.

[0054] Optionally, as shown in Figure 1 , Figure 2 and Figure 10 , it further comprises a first wrench 4, and one end of the first wrench 4 is screwed with the first connecting portion 12 during work.

[0055] The optional embodiment has the beneficial effect that the first wrench 4 can be used to pre-position the fixing ring 1. After the dental handpiece 6 is inserted into the fixing ring 1, the plurality of inner lining plates 3 are inserted into the gap between the dental handpiece 6 and the fixing ring 1, and then the locking nut 2 is tightened with the fixing ring 1 using other wrenches to fix and lock the dental handpiece 6, which is more convenient and fast.

[0056] Optionally, as shown in Figure 1 , Figure 2 and Figure 10 , the first wrench 4 comprises a first body portion 41 and a sleeve portion 43, and the sleeve portion 43 is arranged at one end of the first body portion 41, and the sleeve portion 43 is screwed with the first connecting portion 12 during work.

[0057] In the above-mentioned optional embodiment, it should be noted that the first wrench 4 further comprises a blocking portion 44, and the blocking portion 44 is arranged on one side of the sleeve portion 43, and a circular hole 46 is formed on the blocking portion 44, and an internal thread is arranged on the inner side wall of the sleeve portion 43.

[0058] The optional embodiment has the beneficial effect that the reliable connection of the first wrench 4 and the first connecting part 12 is realized by the sleeve part 43, and the reliability in cooperation with other wrenches for fastening the dental handpiece is realized, and the force arm is increased by the first body part 41, and the labor-saving effect is realized.

[0059] Optionally, as shown in Figure 1 , Figure 2 and Figure 10 , the first wrench 4 further comprises a first connecting ring 42, which is arranged on the side of the first body part 41 away from the sleeve part 43, and a first clamping hole 45 is arranged on the first connecting ring 42.

[0060] In the optional embodiment, it should be noted that the first clamping hole 45 is a polygonal hole.

[0061] The optional embodiment has the beneficial effect that the first wrench 4 can be used for tightening and loosening other polygonal nuts in addition to the locking device by the cooperation of the first clamping hole 45 and the first connecting ring 42, and multifunctional use is realized.

[0062] Optionally, as shown in Figure 1 , Figure 2 and Figure 11 , the second wrench 5 is further arranged, one end of the second wrench 5 is clamped with the wrench assembly part 21 when the dental handpiece 6 is assembled, and the other end of the second wrench 5 is clamped with the wrench positioning part 11 when the first wrench 4 is disassembled.

[0063] The optional embodiment has the beneficial effect that the tightening and fixing of the dental handpiece can be realized by the cooperation of the first wrench 4 and the second wrench 5.

[0064] Optionally, as shown in Figure 1 , Figure 2 and Figure 11 , the second wrench 5 comprises a second body part 51, a second connecting ring 52, and a connecting lug 53, a second clamping hole 55 is arranged on the second connecting ring 52, and a clamping groove 54 is arranged on the connecting lug 53.

[0065] When the dental handpiece 6 is assembled, the second connecting ring 52 is clamped with the wrench positioning part 11 through the second clamping hole 55;

[0066] When the first wrench 4 is disassembled, the connecting lug 53 is clamped with the wrench assembly part 21 through the clamping groove 54.

[0067] In the optional embodiment, it should be noted that the second clamping hole 55 is a polygonal hole.

[0068] The beneficial effect of the above optional embodiment is that through the cooperation of the second clamping hole 55, the second connecting ring 52, the connecting lug 53 and the clamping groove 54, the second wrench 5 can be used not only for the locking device, but also for tightening and loosening other polygonal nuts, realizing multifunctional use.

[0069] The process of fixing and locking the dental handpiece 6 by the device includes the following steps: first, the dental handpiece 6 is inserted into the tail end of the fixing ring 1, the sleeve part 43 of the first wrench 4 is screwed with the first connecting part 12 of the fixing ring 1, and the sleeve part 43 of the first wrench 4 is screwed with the first connecting part 12 of the fixing ring 1, realizing the axial positioning of the tail end of the handpiece.

[0070] Second, the locking nut 2 is sleeved on the dental drill end of the dental handpiece 6, the inner lining plate is sleeved, then the inner lining plate 3 is matched with the handle part of the dental handpiece 6, the outer lining plate 3 is matched with the inner taper surface of the outer connecting part 23 of the locking nut 2, and the outer thread of the outer connecting part 23 of the locking nut 2 is matched with the inner thread of the second connecting part 14 of the fixing ring 1 and is screwed. When screwing, the second clamping hole 55 of the second connecting ring 52 of the second wrench 5 is matched with the wrench assembly part 21 of the locking nut 2, and the second wrench 5 and the first wrench 4 act simultaneously.

[0071] Third, the inner lining plate 3 is axially positioned by the fixing ring 1, and in the process of screwing, the taper surfaces are matched with each other to realize the pressing of the inner lining plate 3, so as to tightly hold the dental handpiece 6.

[0072] Fourth, after the dental handpiece 6 is locked by the cooperation of the first wrench 4 and the second wrench 5, the connecting lug 53 of the second wrench 5 is matched with the wrench positioning part 11 of the fixing ring 1, and the first wrench 4 is separated from the fixing ring 1.

[0073] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any change or replacement easily thought of by those skilled in the art within the technical range disclosed by the present application should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A dental handpiece securement locking device, characterized by, The utility model relates to a dental handpiece fixing ring, including fixed ring (1), locking nut (2) and multiple inner lining board (3), locking nut (2) is inserted in fixed ring (1), multiple inner lining board (3) is in the form of circumferential array is arranged on the inner side wall of locking nut (2), multiple inner lining board (3) outer side wall all with the inner side wall abutment of locking nut (2) when working, multiple inner lining board (3) inner side wall all with dental handpiece (6) interference fit.

2. The dental handpiece securement lockout of claim 1, wherein, The fixed ring (1) includes a first connecting portion (12), a second connecting portion (14), and a wrench positioning portion (11). The first connecting portion (12) is connected to the second connecting portion (14). The second connecting portion (14) is provided with the wrench positioning portion (11) on the outer periphery. The second connecting portion (14) is screwed with the locking nut (2).

3. The dental handpiece securement lockout of claim 2, wherein, The locking nut (2) includes a wrench assembly portion (21) and an outer connecting portion (23). The wrench assembly portion (21) is connected to the outer connecting portion (23). The outer connecting portion (23) is screwed with the second connecting portion (14). The outer side walls of the multiple inner lining boards (3) are all in abutment with the inner side wall of the outer connecting portion (23). The inner side wall of the outer connecting portion (23) is in the shape of a circular truncated cone.

4. The dental handpiece securement lockout of claim 3, wherein, At least one clearance gap (24) is formed in the inner side wall of the wrench assembly portion (21).

5. The dental handpiece securement lock according to any one of claims 1-4, wherein, The outer surface of each inner lining board (3) is a conical surface.

6. The dental handpiece securement lockout of claim 3, wherein, A first wrench (4) is further included. When working, one end of the first wrench (4) is screwed with the first connecting portion (12).

7. The dental handpiece securement lockout of claim 6, wherein, The first wrench (4) includes a first body portion (41) and a sleeve portion (43). One end of the first body portion (41) is provided with the sleeve portion (43). When working, the sleeve portion (43) is screwed with the first connecting portion (12).

8. The dental handpiece securement lockout of claim 7, wherein, The first wrench (4) further includes a first connecting ring (42). The first connecting ring (42) is provided on the side of the first body portion (41) away from the sleeve portion (43). A first clamping hole (45) is formed in the first connecting ring (42).

9. The dental handpiece securement lockout of claim 8, wherein, A second wrench (5) is further included. When assembling the dental handpiece (6), one end of the second wrench (5) is clamped with the wrench assembly portion (21). When disassembling the first wrench (4), the other end of the second wrench (5) is clamped with the wrench positioning portion (11).

10. The dental handpiece securement lockout of claim 9, wherein, The second wrench (5) includes a second body portion (51), a second connecting ring (52), and a connecting lug (53). A second clamping hole (55) is formed in the second connecting ring (52). A clamping groove (54) is formed in the connecting lug (53). When assembling the dental handpiece (6), the second connecting ring (52) is clamped with the wrench positioning portion (11) through the second clamping hole (55). When disassembling the first wrench (4), the connecting lug (53) is clamped with the wrench assembly portion (21) through the clamping groove (54).

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