Rotation adjusting structure for dental lighting device
By designing a rotation adjustment structure with elastic locking parts and seams in dental lighting devices, the problem of loosening and adjustment of the rotary sleeve is solved, and stable and flexible rotation adjustment is achieved, and the lighting effect is improved.
Patent Information
- Application Number
- CN202421193454.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-28
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-05-28
AI Technical Summary
In the rotation adjustment structure of the existing dental lighting device, the rotation shaft and the rotation sleeve are easily loosened, and the tightness is difficult to adjust, which affects the lighting effect.
A rotation adjustment structure including a rotary shaft sleeve, a tightening shaft sleeve, a connecting member and an elastic lock member is designed. By providing an elastic lock member and a tightening shaft sleeve with a thread seam on the rotary shaft sleeve, the elastic lock is used. The resistance of the tightening member causes the tightening sleeve to shrink and resist the rotation shaft, increasing friction, achieving relative rotation between the rotating shaft and the tightening sleeve, and maintaining the same degree of tightness.
The stable friction between the rotating shaft and the clasping sleeve is achieved, ensuring the positioning and adjustment of the rotating shaft at any position, and improving the use effect of dental lighting devices.
Smart Images
Figure CN222297827U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical lighting equipment, in particular to a rotation adjustment structure for a dental lighting device. Background Art
[0002] With the popularization of LED light sources, LED medical lamp designs emerge in an endless stream. In the dental industry, dental lamps are used to illuminate the patient's mouth or oral cavity during dental treatment, and to achieve local lighting during surgical diagnosis or dental work. In existing designs, in order to avoid hindering the diagnosis and treatment work of medical staff, dental lighting devices are generally installed on a mounting frame through an adjustment structure, and the angle and position are adjusted through the adjustment structure to improve the lighting effect. However, when the adjustment structure adjusts the lamp body, the rotating shaft and the rotating shaft sleeve are prone to looseness, and the tightness between the two is difficult to adjust, so that rotation cannot be achieved, affecting use and easily affecting the oral lighting effect. Utility Model Content
[0003] The main purpose of the utility model is to overcome the above disadvantages and shortcomings of the prior art and provide a rotation adjustment structure for a dental lighting device.
[0004] A rotation adjustment structure for a dental lighting device is installed on the back of the dental lighting device, the rotation adjustment structure includes a rotating sleeve, a clamping sleeve, a connecting piece and an elastic locking piece, the rotating sleeve is provided with a mounting hole, the connecting piece includes a rotating shaft, the clamping sleeve is provided with a seam, the seam passes through the clamping sleeve in the center line direction of the clamping sleeve, the clamping sleeve is arranged on the rotating shaft and inserted into the rotating sleeve, the elastic locking piece passes through the mounting hole and contacts the clamping sleeve, and the clamping sleeve contracts and contacts the rotating shaft under the contact force of the elastic locking piece.
[0005] The utility model arranges an elastic locking piece and a clamping sleeve with a seam on the rotating sleeve, and the clamping sleeve contracts under the resistance force of the elastic locking piece. After contraction, the clamping sleeve resists the rotating shaft, so that the friction between the rotating shaft and the clamping sleeve is increased, and the rotating shaft and the clamping sleeve can rotate relatively. At the same time, the elastic locking piece continuously applies pressure and resistance force to the clamping sleeve, and the rotating shaft and the clamping sleeve can always maintain the same tightness, so as to realize rotation positioning at any position.
[0006] In one embodiment, the elastic locking member includes a locking screw, a pressing member and an elastic member, wherein the elastic member is arranged between the locking screw and the pressing member, the pressing member contacts the clamping sleeve, and the locking screw is fixed in the mounting hole. Since the elastic member can continuously apply pressure in a direction perpendicular to the center line of the clamping sleeve, the acting force between the pressing member and the clamping sleeve is always consistent.
[0007] In one embodiment, the elastic member is a spring or a silicone member.
[0008] In one embodiment, a positioning groove is provided on the clamping sleeve, and the pressing member is inserted into the positioning groove. The positioning groove can make the pressing member better cooperate with the clamping sleeve to ensure that there is no matching deviation between the two when the connecting member rotates.
[0009] In one embodiment, the connecting member further comprises a mounting portion, a first limiting portion, and a second limiting portion, wherein the mounting portion is adjacent to the first limiting portion, the rotating shaft is located between the first limiting portion and the second limiting portion, the mounting portion is mounted on the dental lighting device, and the clamping sleeve is mounted on the rotating shaft and located between the first limiting portion and the second limiting portion. Since the clamping sleeve can be extended and retracted, it can pass through the second limiting portion and be sleeved on the rotating shaft, and the cross-sectional area of the second limiting portion is smaller than that of the first limiting portion.
[0010] In one embodiment, the dental lighting device comprises a shell, a mounting groove is formed on the back of the shell, the mounting portion is installed in the shell, and the rotating shaft, the first limiting portion and the second limiting portion are located in the mounting groove.
[0011] In one embodiment, the hole diameter of the rotating sleeve is clearance-matched with the shaft diameter of the first limiting portion.
[0012] In one embodiment, a mounting rod is mounted on the rotating sleeve, and a second rotation adjustment structure is mounted at the end of the mounting rod.
[0013] In one embodiment, a limit cam is provided in the shaft hole of the rotating sleeve, and the limit cam abuts against the clamping sleeve. The limit cam limits the two connecting members and the clamping sleeve to avoid the two clamping sleeves abutting against each other and affecting the rotation adjustment effect.
[0014] The utility model has the beneficial effect of the rotation adjustment structure for dental lighting device: by arranging the elastic locking member and the clamping sleeve with seams on the rotating sleeve, the clamping sleeve shrinks under the resistance force of the elastic locking member, and after shrinking, the clamping sleeve resists the rotating shaft, so that the friction between the rotating shaft and the clamping sleeve is increased, and the rotating shaft and the clamping sleeve can rotate relatively, and at the same time, the elastic locking member continuously applies pressure resistance force to the clamping sleeve, and the rotating shaft and the clamping sleeve can always maintain the same tightness, so as to realize the rotation positioning at any position. . BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a schematic diagram of the structure of the rotation adjustment structure of the dental lighting device of the present invention;
[0016] Figure 2 for Figure 1 A schematic diagram of the exploded structure of the rotary adjustment structure of the dental lighting device of the utility model;
[0017] Figure 3 for Figure 1 A cross-sectional view of the rotation adjustment structure of the utility model for a dental lighting device;
[0018] Figure 4 for Figure 1 A cross-sectional view of another angle of the rotation adjustment structure of the dental lighting device of the utility model;
[0019] Figure 5 This is a schematic diagram of the application of the rotary adjustment structure of the utility model for a dental lighting device. DETAILED DESCRIPTION
[0020] 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.
[0021] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships 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 referred device or element 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.
[0022] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0023] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0024] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean 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, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
[0025] The utility model discloses a rotation adjustment structure for a dental lighting device, which is installed on the back side of the dental lighting device. The rotation adjustment structure comprises a rotating sleeve, a clamping sleeve, a connecting piece and an elastic locking piece. The rotating sleeve is provided with a mounting hole, the connecting piece comprises a rotating shaft, a thread seam is provided on the clamping sleeve, and the thread seam passes through the clamping sleeve in the direction of the center line of the clamping sleeve. The clamping sleeve is arranged on the rotating shaft and inserted into the rotating sleeve, the elastic locking piece passes through the mounting hole and contacts the clamping sleeve, and the clamping sleeve contracts and contacts the rotating shaft under the contact force of the elastic locking piece.
[0026] The utility model arranges an elastic locking piece and a clamping sleeve with a seam on the rotating sleeve, and the clamping sleeve contracts under the resistance force of the elastic locking piece. After contraction, the clamping sleeve resists the rotating shaft, so that the friction between the rotating shaft and the clamping sleeve is increased, and the rotating shaft and the clamping sleeve can rotate relatively. At the same time, the elastic locking piece continuously applies pressure and resistance force to the clamping sleeve, and the rotating shaft and the clamping sleeve can always maintain the same tightness, so as to realize rotation positioning at any position.
[0027] Embodiment 1
[0028] See also Figures 1 to 5 The utility model provides a rotation adjustment structure 100 for a dental lighting device, which is applied to shadowless lighting in dental surgery and is installed on the back of a dental lighting device 200. The rotation adjustment structure 100 includes a rotating sleeve 1, a clamping sleeve 2, a connecting piece 3 and an elastic locking piece 4. The rotating sleeve 1 is provided with a mounting hole 11, and the number of the mounting holes 11 is two. The number of the clamping sleeve 2, the connecting piece 3 and the elastic locking piece 4 are all two. The clamping sleeve 2, the connecting piece 3 and the elastic locking piece 4 are all installed on the rotating sleeve 1, and the connecting piece 3 is also installed on the dental lighting device 200.
[0029] More specifically, see Figure 2 , Figure 3 and Figure 4 The clamping sleeve 2 is provided with a seam 21, which penetrates the clamping sleeve 2 in the direction of the center line of the clamping sleeve 2. The arrangement of the seam 21 can make the clamping sleeve 2 expand and contract under the action of external force. The connecting member 3 includes a rotating shaft 31, a mounting portion 32, a first limiting portion 33 and a second limiting portion 34. The mounting portion 32 is adjacent to the first limiting portion 33, the rotating shaft 31 is located between the first limiting portion 33 and the second limiting portion 34, the mounting portion 32 is mounted on the dental lighting device 200, and the clamping sleeve 2 is mounted on the rotating shaft 31 and is located between the first limiting portion 33 and the second limiting portion 34.
[0030] When the utility model is assembled and used, the clamping sleeve 2 is installed on the rotating shaft 31 and inserted into the rotating sleeve 1 together with the rotating shaft 31. The elastic locking piece 4 passes through the mounting hole 11 and abuts against the clamping sleeve 2. The clamping sleeve 2 shrinks and abuts against the rotating shaft 31 under the abutting force of the elastic locking piece 4. The elastic locking piece 4 provides a continuous and balanced force for the clamping sleeve 2.
[0031] More specifically, see Figure 2 and Figure 3The elastic locking member 4 includes a locking screw 41, a pressure member 42 and an elastic member 43. The elastic member 43 is a spring or a silicone member. Preferably, the elastic member 43 is a spring. The spring of the metal structure is more durable and can maintain a longer sustained and balanced elasticity than the silicone member. The elastic member 43 is arranged between the locking screw 41 and the pressure member 42. The pressure member 42 contacts the clamping sleeve 2, and the locking screw 41 is fixed in the mounting hole 11. Since the elastic member 43 can continuously apply pressure in a direction perpendicular to the center line of the clamping sleeve 2, the force between the pressure member 42 and the clamping sleeve 2 is always consistent. The elastic locking member 4 can also adopt other structural designs, such as a magnet of the same polarity providing a reaction force to the pressure member 42.
[0032] The utility model arranges an elastic locking piece 4 and a clamping sleeve 2 with a seam 21 on the rotating sleeve 1. The clamping sleeve 2 shrinks under the resistance force of the elastic locking piece 4. After shrinkage, the clamping sleeve 2 resists the rotating shaft 31, so that the friction between the rotating shaft 31 and the clamping sleeve 2 is increased, and the rotating shaft 31 and the clamping sleeve 2 can rotate relative to each other. At the same time, the elastic locking piece 4 continuously applies pressure and resistance force to the clamping sleeve 2, and the rotating shaft 31 and the clamping sleeve 2 can always maintain the same tightness to achieve rotation positioning at any position.
[0033] More specifically, see Figure 2 and Figure 3 A positioning groove 22 is provided on the clamping sleeve 2, and the pressing piece 42 is inserted into the positioning groove 22. The positioning groove can make the pressing piece better cooperate with the clamping sleeve to ensure that there is no matching deviation between the two when the connecting piece rotates.
[0034] More specifically, see Figure 5 The dental lighting device 200 includes a housing 201, a mounting groove 202 is provided on the back of the housing 201, a mounting portion 32 is installed in the housing 201, and a rotating shaft 31, a first limiting portion 33 and a second limiting portion 34 are located in the mounting groove 202. Handles 203 are provided on both sides of the housing 201, and the angle of the dental lighting device 200 can be rotated and adjusted by holding the handles 203.
[0035] More specifically, see Figure 1 and Figure 4 , the aperture of the rotating sleeve 1 is clearance-matched with the shaft diameter of the first limiting portion 33. A mounting rod 5 is mounted on the rotating sleeve 1, and a second rotating adjustment structure 6 is also mounted at the end of the mounting rod 5. The second rotating adjustment structure 6 can be adjusted in another vertical plane, and the specific structure of the second rotating adjustment structure 6 can be the same as the rotating adjustment structure 100, or different, and will not be described in detail here.
[0036] More specifically, see Figure 4A limiting convex 12 is provided in the shaft hole of the rotating sleeve 1, and the limiting convex 12 abuts against the clamping sleeve 2. The limiting convex 12 limits the two connecting members 3 and the clamping sleeve 2 to avoid the two clamping sleeves 2 abutting against each other and affecting the rotation adjustment effect.
[0037] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, 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, they should be considered to be within the scope of this specification.
[0038] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.
Claims
1. A rotation adjustment structure for a dental lighting device, mounted on the back of the dental lighting device, characterized in that: The rotation adjustment structure includes a rotating sleeve, a clamping sleeve, a connecting piece and an elastic locking piece. The rotating sleeve is provided with a mounting hole, the connecting piece includes a rotating shaft, the clamping sleeve is provided with a seam, the seam passes through the clamping sleeve in the center line direction of the clamping sleeve, the clamping sleeve is arranged on the rotating shaft and inserted into the rotating sleeve, the elastic locking piece passes through the mounting hole and contacts the clamping sleeve, and the clamping sleeve contracts and contacts the rotating shaft under the contact force of the elastic locking piece.
2. The rotation adjustment structure for a dental lighting device according to claim 1, characterized in that: The elastic locking member comprises a locking screw, a pressing member and an elastic member, wherein the elastic member is arranged between the locking screw and the pressing member, the pressing member abuts against the clamping sleeve, and the locking screw is fixed in the mounting hole.
3. The rotation adjustment structure for a dental lighting device according to claim 2, characterized in that: The elastic member is a spring or a silicone member.
4. The rotation adjustment structure for a dental lighting device according to claim 2, characterized in that: The clamping sleeve is provided with a positioning groove, and the pressing piece is inserted into the positioning groove.
5. The rotation adjustment structure for a dental lighting device according to claim 1, characterized in that: The connecting member also includes a mounting portion, a first limiting portion and a second limiting portion, the mounting portion is adjacent to the first limiting portion, the rotating shaft is located between the first limiting portion and the second limiting portion, the mounting portion is installed on the dental lighting device, and the clamping sleeve is installed on the rotating shaft and is located between the first limiting portion and the second limiting portion.
6. The rotation adjustment structure for a dental lighting device according to claim 5, characterized in that: The dental lighting device comprises a shell, a mounting groove is formed on the back of the shell, the mounting portion is installed in the shell, and the rotating shaft, the first limiting portion and the second limiting portion are located in the mounting groove.
7. The rotation adjustment structure for a dental lighting device according to claim 5, characterized in that: The hole diameter of the rotating sleeve is loosely matched with the shaft diameter of the first limiting portion.
8. The rotation adjustment structure for a dental lighting device according to claim 1, characterized in that: A mounting rod is mounted on the rotating shaft sleeve, and a second rotation adjustment structure is mounted on the end of the mounting rod.
9. The rotation adjustment structure for a dental lighting device according to claim 1, characterized in that: A limiting convex is arranged in the shaft hole of the rotating shaft sleeve, and the limiting convex abuts against the clamping shaft sleeve.