Rotary adjusting device for mouth lamp

Abstract

The utility model provides a rotation adjusting device for mouth lamp, including rotating shaft, rotating shaft sleeve, shell and elastic lock piece, rotating shaft is equipped with first limit piece, rotating shaft sleeve one side is equipped with first mounting groove and second limit piece, rotating shaft sleeve other side is equipped with third limit piece, the shell is equipped with second mounting groove, the elastic lock piece is equipped with elastic lock piece, the elastic lock piece is equipped with elastic lock piece. A through hole and a fourth limiting piece are arranged at the bottom of the second mounting groove; the rotating shaft is inserted into the first mounting groove, the rotating shaft sleeve is arranged in the second mounting groove, the rotating shaft penetrates through the rotating shaft sleeve and the through hole to be connected to the elastic locking piece, the rotating shaft rotates relative to the rotating shaft sleeve and is limited through cooperation of the first limiting piece and the second limiting piece, and the rotating shaft sleeve rotates relative to the shell and is limited through the third limiting piece and the fourth limiting piece; the rotating shaft can rotate by less than 360 degrees relative to the rotating shaft sleeve, the rotating shaft sleeve can rotate by less than 360 degrees relative to the shell, and the rotating shaft can rotate by more than 360 degrees relative to the shell.

Description

Technical Field

[0001] The utility model relates to the technical field of medical lighting equipment, in particular to a rotary adjusting device for an oral lamp. Background Art

[0002] With the popularization of the application of LED light sources, the designs of LED medical lamps emerge in an endless stream. In the dental industry, dental lamps are used to irradiate the mouth or oral cavity of patients during dental treatment, and to achieve local lighting during surgical diagnosis or dental operations. In the existing designs, to avoid interfering with the diagnosis and treatment work of medical staff, oral lamps are generally installed on the mounting bracket through an adjusting structure, and the angle and position of the oral lamp are adjusted through the adjusting structure to improve the lighting effect. However, when the adjusting structure adjusts the lamp body, a limit needs to be set between the rotating shaft and the housing. Due to the existence of the limiting structure, generally only a rotation of less than 360° can be achieved between the two. However, sometimes in actual applications, a rotation of 360° is required. Therefore, a rotary adjusting device that can achieve such a rotation effect needs to be proposed. Summary of the Utility Model

[0003] The main purpose of the utility model is to overcome the above-mentioned shortcomings and deficiencies of the prior art, and to provide a rotary adjusting device for an oral lamp.

[0004] A rotary adjusting device for an oral lamp is installed on the back of the oral lamp. The rotary adjusting device includes a rotating shaft, a rotating shaft sleeve, a housing, and an elastic locking member. At least one first limiting member is provided on the rotating shaft. A first installation groove and at least one second limiting member provided in the installation groove are provided on one side of the rotating shaft sleeve. At least one third limiting member is provided on the other side of the rotating shaft sleeve. A second installation groove is provided on the housing, and a through hole and a fourth limiting member are provided at the bottom of the second installation groove. The rotating shaft is inserted into the first installation groove of the rotating shaft sleeve. The rotating shaft sleeve is installed in the second installation groove. The rotating shaft passes through the rotating shaft sleeve and the through hole and is connected to the elastic locking member. The rotating shaft rotates relative to the rotating shaft sleeve, and is limited by the cooperation of the first limiting member and the second limiting member. The rotating shaft sleeve rotates relative to the housing, and is limited by the third limiting member and the fourth limiting member.

[0005] The utility model rotates between the rotating shaft and the rotating shaft sleeve. The first limiting member and the second limiting member cooperate to limit the rotation. The rotating shaft can rotate less than 360° relative to the rotating shaft sleeve. The rotating shaft sleeve rotates with the housing, and the third limiting member and the fourth limiting member limit the rotation. The rotating shaft sleeve can rotate less than 360° relative to the housing. After the rotation of the two is superimposed, it can meet the rotation of the rotating shaft relative to the housing of more than 360°.

[0006] In the implementation of one of the embodiments, two of the first limiting members are provided on the rotating shaft. Correspondingly, two of the second limiting members are provided on the rotating shaft sleeve. When the rotating shaft rotates relative to the rotating shaft sleeve, each of the first limiting members rotates within the space between the two second limiting members. The rotating shaft can rotate relative to the rotating shaft sleeve by less than 180°. The number of the first limiting members and the second limiting members can be the same or different, and can be replaced in a timely manner according to different design requirements to meet different rotation angle adjustments. Here, only two first limiting members and two second limiting members are used as examples for illustration.

[0007] In the implementation of one of the embodiments, a groove is formed at the bottom of the second installation groove, the through hole is opened at the bottom of the groove, the fourth limiting member connects the outer edge of the groove to the inner edge of the second installation groove, and a first gasket is provided in the groove.

[0008] In the implementation of one of the embodiments, a plurality of reinforcing ribs are provided between the outer edge of the groove and the inner edge of the second installation groove. The height of the reinforcing ribs is lower than that of the fourth limiting member. The third limiting member rotates between the outer edge of the groove and the inner edge of the second installation groove and abuts against the fourth limiting member.

[0009] In the implementation of one of the embodiments, a pressing piece is provided above the first limiting member on the rotating shaft. The pressing piece is inserted into the first installation groove, and the pressing piece is in clearance fit with the first installation groove.

[0010] In the implementation of one of the embodiments, the rotating shaft is provided with a hollow along the center line direction.

[0011] In the implementation of one of the embodiments, the elastic locking member includes a fixing portion, an elastic portion, and a second gasket. The second gasket, the elastic portion, and the fixing portion are sequentially installed below the rotating shaft. The fixing portion is fixed to the rotating shaft, and the second gasket abuts against the lower end of the through hole.

[0012] In the implementation of one of the embodiments, the elastic portion is a spring or a silicone member.

[0013] In the implementation of one of the embodiments, a mounting rod is installed on the housing, and a second rotation adjustment structure is further installed at the end of the mounting rod. The second rotation adjustment structure is installed on the oral lamp.

[0014] The beneficial effects of the rotation adjustment device for the oral cavity lamp of the present utility model are as follows: By rotating between the rotating shaft and the rotating shaft sleeve, and with the cooperation of the first limiting member and the second limiting member for limiting, the rotating shaft can rotate less than 360° relative to the rotating shaft sleeve. The rotating shaft sleeve rotates with the housing, and with the limitation of the third limiting member and the fourth limiting member, the rotating shaft sleeve can rotate less than 360° relative to the housing, so that the rotating shaft can rotate more than 360° relative to the housing. Description of the Drawings

[0015] Figure 1 It is a schematic structural diagram of the rotation adjustment device for the oral cavity lamp of the present utility model;

[0016] Figure 2 It is Figure 1 An exploded structural diagram of the rotation adjustment device for the oral cavity lamp of the present utility model;

[0017] Figure 3 It is Figure 2 A partial structural diagram of the rotation adjustment device for the oral cavity lamp of the present utility model;

[0018] Figure 4 It is Figure 2 A partial structural diagram of the rotation adjustment device for the oral cavity lamp of the present utility model;

[0019] Figure 5 It is Figure 2 A partial structural diagram of the rotation adjustment device for the oral cavity lamp of the present utility model;

[0020] Figure 6 It is Figure 1 A sectional view of the rotation adjustment device for the oral cavity lamp of the present utility model;

[0021] Figure 7 It is Figure 1 A sectional view of the rotation adjustment device for the oral cavity lamp of the present utility model from another angle;

[0022] Figure 8 It is an application schematic diagram of the rotation adjustment device for the oral cavity lamp of the present utility model. Detailed Description of the Embodiment

[0023] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model.

[0024] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0025] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality of" means two or more, unless otherwise specifically and clearly defined.

[0026] In the present utility model, unless otherwise clearly specified and defined, the terms such as "mounted", "connected", "connected to", "fixed" and the like should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0027] In the present utility model, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0028] The utility model relates to a rotary adjusting device for an oral lamp, which is installed on the back of the oral lamp. The rotary adjusting device comprises a rotary shaft, a rotary shaft sleeve, a shell and an elastic locking member. At least one first limiting member is arranged on the rotary shaft. A first installation groove and at least one second limiting member arranged in the installation groove are arranged on one side of the rotary shaft sleeve. At least one third limiting member is arranged on the other side of the rotary shaft sleeve. A second installation groove is formed in the shell, and a through hole and a fourth limiting member are arranged at the bottom of the second installation groove. The rotary shaft is inserted into the first installation groove of the rotary shaft sleeve, the rotary shaft sleeve is installed in the second installation groove, the rotary shaft passes through the rotary shaft sleeve and the through hole and is connected to the elastic locking member. The rotary shaft rotates relative to the rotary shaft sleeve, and is limited by the cooperation of the first limiting member and the second limiting member. The rotary shaft sleeve rotates relative to the shell, and is limited by the third limiting member and the fourth limiting member.

[0029] In the utility model, rotation is carried out between the rotary shaft and the rotary shaft sleeve. The first limiting member and the second limiting member are cooperatively limited. The rotary shaft can rotate relative to the rotary shaft sleeve by less than 360°. The rotary shaft sleeve rotates with the shell, and the third limiting member and the fourth limiting member are limited. The rotary shaft sleeve can rotate relative to the shell by less than 360°, so that the rotary shaft can rotate relative to the shell by more than 360°.

[0030] Embodiment 1

[0031] Please refer to Figures 1 to 8 , the utility model provides a rotary adjusting device 100 for an oral lamp, which is applied to shadowless lighting in oral surgery and is installed on the back of the oral lamp 200. The rotary adjusting device 100 comprises a rotary shaft 1, a rotary shaft sleeve 2, a shell 3 and an elastic locking member 4. Two first limiting members 11 are arranged on the rotary shaft 1. A first installation groove 21 and two second limiting members 22 arranged in the installation groove 21 are arranged on one side of the rotary shaft sleeve 2. In this embodiment, the connecting line of the two second limiting members 22 passes through the center of the first installation groove 21, that is, with the center point of the first installation groove 21 as the center, the included angle between the two second limiting members 22 is less than 360°. One third limiting member 23 is arranged on the other side of the rotary shaft sleeve 2. A second installation groove 31 is formed in the shell 3, and a through hole 32 and a fourth limiting member 33 are arranged at the bottom of the second installation groove 31. The rotary shaft 1 is inserted into the first installation groove 21 of the rotary shaft sleeve 2, the rotary shaft sleeve 2 is installed in the second installation groove 31, the rotary shaft 1 passes through the rotary shaft sleeve 2 and the through hole 32 and is connected to the elastic locking member 4. The rotary shaft 1 rotates relative to the rotary shaft sleeve 2, and is limited by the cooperation of the first limiting member 11 and the second limiting member 22. The rotary shaft sleeve 2 rotates relative to the shell 3, and is limited by the third limiting member 23 and the fourth limiting member 33.

[0032] More specifically, please refer to Figure 2 ,Figure 3 and Figure 4 When the rotating shaft 1 rotates relative to the rotating shaft sleeve 2, each first limiting member 11 rotates within the space between the two second limiting members 22. The first limiting member 11 and the second limiting member 22 cooperate for limiting, and the rotating shaft 1 can rotate less than 360° relative to the rotating shaft sleeve 2.

[0033] More specifically, please refer to Figures 5 to 7 , a groove 34 is provided at the bottom of the groove bottom of the second installation groove 31, a through hole 32 is opened at the bottom of the groove 34, a fourth limiting member 33 connects the outer edge of the groove 34 and the inner edge of the second installation groove 31, and a first gasket 5 is provided in the groove 34.

[0034] More specifically, please refer to Figures 5 to 7 , several reinforcing ribs 35 are provided between the outer edge of the groove 34 and the inner edge of the second installation groove 31. The height of the reinforcing ribs 35 is lower than that of the fourth limiting member 33. The third limiting member 23 rotates between the outer edge of the groove 34 and the inner edge of the second installation groove 31 and abuts against the fourth limiting member 33. The rotating shaft sleeve 2 and the housing 3 rotate. Since the number of the fourth limiting members 33 is one, the rotation angle of the third limiting member 23 between the outer edge of the groove 34 and the inner edge of the second installation groove 31 is less than 360°, that is, the third limiting member 23 and the fourth limiting member 33 are limited, and the rotating shaft sleeve can rotate less than 360° relative to the housing.

[0035] In the utility model, through the rotation between the rotating shaft and the rotating shaft sleeve, the first limiting member 11 and the second limiting member 22 cooperate for limiting, and the rotating shaft 1 can rotate less than 360° relative to the rotating shaft sleeve 2. The rotating shaft sleeve 2 and the housing 3 rotate, and the third limiting member 23 and the fourth limiting member 33 are limited. The rotating shaft sleeve 2 can rotate less than 360° relative to the housing 1. After the rotation angles of the two are superimposed, it can meet the requirement that the rotating shaft 1 rotates more than 360° relative to the housing 3.

[0036] More specifically, please refer to Figure 3 , a pressing piece 12 is provided above the first limiting member 11 of the rotating shaft 1. The pressing piece 12 is inserted into the first installation groove 21, and the pressing piece 12 has a clearance fit with the first installation groove 21, so that the cooperation between the rotating shaft 1 and the rotating shaft sleeve 2 is closer. Among them, the rotating shaft 1 is hollowly arranged along the center line direction.

[0037] More specifically, please refer to Figure 6 and Figure 7, the elastic locking member 4 includes a fixing portion 41, an elastic portion 42 and a second gasket 43. The second gasket 43, the elastic portion 42 and the fixing portion 41 are sequentially installed below the rotating shaft 1. The fixing portion 41 is fixed to the rotating shaft 1, and the second gasket 43 abuts against the lower end of the through hole 32. Among them, the elastic portion 42 is a spring or a silicone member. Preferably, the elastic portion 42 is a spring. The elastic portion 42 can ensure that the same acting force is maintained among the rotating shaft 1, the rotating shaft sleeve 2 and the housing 3 in the vertical direction.

[0038] More specifically, please refer to Figure 1 , an installation rod 6 is installed on the housing 3, and a second rotation adjustment structure 7 is further installed at the end of the installation rod 6. The second rotation adjustment structure 7 is installed on the oral lamp 200. The second rotation adjustment structure 7 can achieve adjustment in another vertical plane.

[0039] More specifically, please refer to Figure 8 , the oral lamp 200 includes a housing 201. An assembly groove 202 is formed on the back surface of the housing 201, and the second rotation adjustment structure 7 is installed in the assembly groove 202. Handles 203 are installed on both sides of the housing 201, and the angle of the oral lamp 200 can be rotated and adjusted by holding the handles 203.

[0040] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0041] The above-described embodiments only represent several implementation manners of the present utility model. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several deformations and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the utility model patent shall be subject to the appended claims.

Claims

1. A rotary adjustment device for an oral lamp, mounted on the back of the oral lamp, characterized in that: The rotation adjustment device includes a rotating shaft, a rotating sleeve, a shell and an elastic locking piece, wherein at least one first limiting piece is provided on the rotating shaft, a first mounting groove and at least one second limiting piece arranged in the mounting groove are provided on one side of the rotating sleeve, and at least one third limiting piece is provided on the other side of the rotating sleeve, a second mounting groove is opened on the shell, and a through hole and a fourth limiting piece are provided at the bottom of the second mounting groove; the rotating shaft is inserted into the first mounting groove of the rotating sleeve, the rotating sleeve is arranged in the second mounting groove, the rotating shaft passes through the rotating sleeve and the through hole and is connected to the elastic locking piece, the rotating shaft rotates relative to the rotating sleeve and is limited by the first limiting piece and the second limiting piece, the rotating sleeve rotates relative to the shell and is limited by the third limiting piece and the fourth limiting piece.

2. The rotary adjustment device for an oral lamp according to claim 1, characterized in that: The rotating shaft is provided with two first position-limiting members, and correspondingly, the rotating sleeve is provided with two second position-limiting members. When the rotating shaft rotates relative to the rotating sleeve, each of the first position-limiting members rotates in the space between the two second position-limiting members.

3. The rotary adjustment device for an oral lamp according to claim 1, characterized in that: The bottom of the second mounting groove is provided with a groove, the through hole is provided at the bottom of the groove, the fourth limiting member connects the outer edge of the groove and the inner edge of the second mounting groove, and a first gasket is provided in the groove.

4. The rotary adjustment device for an oral lamp according to claim 3, characterized in that: A plurality of reinforcing ribs are provided between the outer edge of the groove and the inner edge of the second mounting groove, the height of the reinforcing ribs is lower than the fourth limiting member, and the third limiting member rotates between the outer edge of the groove and the inner edge of the second mounting groove and abuts against the fourth limiting member.

5. The rotary adjustment device for an oral lamp according to claim 1, characterized in that: The rotating shaft is provided with a pressing piece above the first limiting member. The pressing piece is inserted into the first mounting groove, and the pressing piece is loosely matched with the first mounting groove.

6. The rotary adjustment device for an oral lamp according to claim 1, characterized in that: The rotating shaft is hollowly arranged along the center line direction.

7. The rotary adjustment device for an oral lamp according to claim 1, characterized in that: The elastic locking member comprises a fixing portion, an elastic portion and a second gasket, wherein the second gasket, the elastic portion and the fixing portion are sequentially arranged below the rotating shaft, the fixing portion is fixed to the rotating shaft, and the second gasket abuts against the lower end of the through hole.

8. The rotary adjustment device for a dental lamp according to claim 7, characterized in that: The elastic part is a spring or a silicone member.

9. The rotary adjustment device for an oral lamp according to claim 1, characterized in that: A mounting rod is mounted on the shell, a second rotation adjustment structure is mounted on the end of the mounting rod, and the second rotation adjustment structure is mounted on the oral lamp.

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