Angle adjusting mechanism and projector support
By cooperating with the adjusting rod, the spring block assembly, and the gear ring, the problem of the existing angle adjustment structure's inability to self-lock is solved, realizing convenient angle adjustment and self-locking for heavy equipment such as projectors, with a simple structure.
Patent Information
- Application Number
- CN202423220128.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2025-11-07
- Estimated Expiration
- 2034-12-24
AI Technical Summary
Existing angle adjustment structures cannot achieve self-locking, resulting in the need for repeated or multiple adjustments, which is inconvenient, especially for heavy loads such as iPads or projectors.
The adjustment rod, which is in the form of a coaxial cylinder with different diameters, cooperates with the spring block assembly and the gear ring. The angle is adjusted by the meshing of the tooth grooves, and the locking and unlocking states are switched by the action of the elastic element.
It achieves convenient angle adjustment and self-locking, has a simple structure, is suitable for heavy loads, and avoids the problem of repeated adjustments.
Smart Images
Figure CN223524876U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to mechanical technical field especially, and it is related to support technical field, including angle adjustment and projector support. BACKGROUND
[0002] The existing angle adjustment structure mostly adopts elastic sheet to limit, realizes unidirectional rotation, however cannot realize self -locking, especially for the load of having certain weight, for example, iPad, projector and so on, need to adjust the angle repeatedly or many times, therefore, it is necessary to improve the existing mechanism. CONTENT OF UTILITY MODEL
[0003] The utility model discloses mainly purposes at presenting a kind of angle adjustment mechanism that can be locked, facilitate angle adjustment and present a kind of projector support with the structure.
[0004] The utility model presents a kind of angle adjustment mechanism, comprising:
[0005] Fixed seat, the fixed seat has the first face and the second face opposite side of the first face, the first face is opened first circular blind hole, the second face is opened second circular blind hole and third circular blind hole and through -hole I corresponding the first circular blind hole, the through -hole I bore is smaller than the third circular blind hole bore, the third circular blind hole bore is smaller than the second circular blind hole bore, fixed hole I is arranged around the through -hole I;
[0006] Gear ring, the gear ring is annular structure and is contained in the second circular blind hole, the inner ring of the gear ring is arranged gear slot and is arranged fixed hole II around the inner ring;
[0007] Movable element, the movable element is opened through -hole II and is arranged fixed hole III around the through -hole II, the fixed hole III corresponds with the fixed hole II, the gear ring is fixed on the movable element;The through -hole II bore is greater than the inner ring bore;
[0008] Fixed shaft, the fixed shaft is composed of shaft portion and shaft cap portion connected with the shaft portion;The adjustment hole is coaxially opened in the shaft portion, fixed hole IV is arranged around the adjustment hole, the fixed hole IV corresponds with the fixed hole I on the fixed seat, the fixed shaft passes through the through -hole II and the inner ring in sequence and part is inserted into the third circular blind hole;The shaft portion outer diameter matches the third circular blind hole bore on the fixed seat;The fixed shaft is fixed on the fixed seat;The shaft portion is evenly opened groove for containing elastic block assembly in axial direction;
[0009] The elastic block assembly has the tooth that matches with the gear slot;
[0010] The adjusting rod assembly has a adjusting rod with sections in the form of coaxial cylinders with different diameters, the sections including a first section, a second section and a third section connecting the first section and the second section, the first section having a smaller outer diameter than the second section; the adjusting rod is inserted into the through hole I and the adjusting hole through the first blind hole.
[0011] Preferably, the elastic block assembly includes an elastic block body and an elastic piece I; the tooth is arranged at the front end of the elastic block body, wings are arranged on both sides of the front end of the elastic block body, and convex parts connected with the elastic piece I are arranged on opposite sides of the wings;
[0012] A slot hole is arranged at the center of the slot, and blind holes are arranged on both sides of the slot hole; the slot hole extends to the adjusting hole;
[0013] The elastic block body is arranged in the slot hole, and the elastic piece I is arranged in the blind hole.
[0014] Preferably, an arc surface is arranged at the tail end of the elastic block body.
[0015] Preferably, the adjusting rod assembly includes an adjusting rod body and an elastic piece II; the adjusting rod body includes an adjusting rod and a button connected with the adjusting rod; and the elastic piece II is sleeved on the adjusting rod.
[0016] Preferably, a flange is arranged at the edge of the first blind hole of the fixing seat, and a clamping convex part is arranged at the outer edge of the button, and the clamping convex part is matched with the flange.
[0017] Preferably, the adjusting rod body passes through the through hole I of the fixing seat and extends into the adjusting hole, and the elastic piece II is sleeved on the adjusting rod between the button and the fixing seat.
[0018] Preferably, a gasket is arranged in the third blind hole between the fixing seat and the tooth ring, and a gasket is arranged between the shaft cap part of the fixing shaft and the movable part.
[0019] The utility model also provides a projector support, including bottom plate and setting above angle adjusting mechanism of the above-mentioned of the bottom plate, the tail end of movable part is equipped with the fixed part for fixing projector.
[0020] The technical scheme of the utility model adopts the adjusting rod with sections in the form of coaxial cylinders with different diameters, the elastic block assembly and the tooth ring, realizes angle adjustment, and can realize random switching between the locked state and the unlocked state, and the structure is simple. BRIEF DESCRIPTION OF DRAWINGS
[0021] With reference to the drawings, the drawings required to be used in the following description of the embodiments or prior art will be briefly introduced, obviously, the drawings are only for the purpose of illustration, not for limiting the protection scope of the present application.
[0022] Figure 1 It is the exploded view of the angle adjusting mechanism of the embodiment of the present application.
[0023] Figure 2a It is the perspective view of the fixed seat of the embodiment of the present application.
[0024] Figure 2b It is the perspective view of the fixed seat of the embodiment of the present application.
[0025] Figure 2c It is the axial sectional view of the fixed seat of the embodiment of the present application.
[0026] Figure 3 It is the perspective view of the gear ring of the embodiment of the present application.
[0027] Figure 4 It is the perspective view of the movable piece of the embodiment of the present application.
[0028] Figure 5 It is the perspective view of the fixed shaft of the embodiment of the present application.
[0029] Figure 6 It is the cross-sectional view of the shaft part of the embodiment of the present application.
[0030] Figure 7 It is Figure 6 The enlarged view of A in the figure.
[0031] Figure 8a It is the perspective view of the elastic block body of the embodiment of the present application.
[0032] Figure 8b It is the perspective view of the elastic block body of the embodiment of the present application.
[0033] Figure 9 It is the perspective view of the adjusting rod body of the embodiment of the present application.
[0034] Figure 10 It is the axial sectional view of the angle adjusting mechanism of the embodiment of the present application.
[0035] Figure 11 It is the schematic diagram of the projector support opening state of the embodiment of the present application.
[0036] Figure 12 It is the schematic diagram of the projector support storage state of the embodiment of the present application.
[0037] BRIEF DESCRIPTION OF DRAWINGS
[0038] 10. Angle adjusting mechanism
[0039] 11. Fixed seat
[0040] 111. First surface; 111a, first circular blind hole; 111b, flange
[0041] 112. Second surface; 112b, second circular blind hole; 112c, third circular blind hole
[0042] 113. Through hole I; 114, fixed hole I; 115, axis
[0043] 12. Gear ring; 12a, inner ring; 121, gear slot; 122, fixed hole II
[0044] 13. Movable piece; 131, through hole II; 132, fixed hole III
[0045] 14. Fixed shaft; 141, shaft part; 142, shaft cap part; 143, adjusting hole; 144, fixed hole IV; 145, groove; 145a, groove hole; 145b, blind hole
[0046] 15. Spring block assembly
[0047] 151. Spring block body; 151a, tooth; 151b, wing part; 151b1, protruding part; 151c, circular arc surface
[0048] 152. Elastic piece I
[0049] 16. Adjusting rod assembly
[0050] 161. Adjusting rod body; 161a, adjusting rod; 161a1, first section; 161a2, second section; 161a3, third section; 161b, button; 161b1, clamping convex
[0051] 162. Elastic piece II
[0052] 17. Washer
[0053] 20. Projector support; 21, bottom plate; 22, fixing piece
[0054] The realization, functional features and advantages of the utility model will be further described with reference to the drawings in combination with embodiments. DETAILED DESCRIPTION
[0055] In order to make the purpose, technical scheme and advantages of the embodiments of the present disclosure clearer, the technical scheme of the embodiments of the present disclosure will be described clearly and completely below in combination with the drawings of the embodiments of the present disclosure.
[0056] The utility model provides a kind of angle adjusting mechanism, such as Figure 1 As shown, the angle adjusting mechanism 10 includes fixed seat 11, gear ring 12, movable piece 13, fixed shaft 14, elastic block assembly 15, adjusting rod assembly 16 and washer 17 and screw.The material of the angle adjusting mechanism 10 can be metal material, can be made by turning or CNC machining;It can also be non-metal material, such as high molecular material by injection molding, hard plastic, resin, etc.
[0057] Please refer to Figure 2a 、 Figure 2b And Figure 2c , fixed seat 11 has first face 111 and second face 112 opposite to the first face 111, fixed seat 11 has a certain thickness and is provided with first circular blind hole 111a on first face 111, second circular blind hole 112b and third circular blind hole 112c and through hole I 113 are coaxially provided on second face 112 corresponding to the first circular blind hole 111a, the hole diameter of the through hole I 113 is smaller than the hole diameter of the third circular blind hole 112c, the hole diameter of the third circular blind hole 112c is smaller than the hole diameter of second circular blind hole 112b, a plurality of fixed holes I 114 are arranged in the third circular blind hole 112c and around the through hole I 113.
[0058] Gear ring 12 is contained in second circular blind hole 112b, please refer to Figure 3 Gear ring 12 is annular structure and is provided with gear slot 121 on inner ring 12a, and a plurality of fixed holes II 122 are arranged around inner ring 12a.
[0059] Please refer to Figure 4 One end of movable piece 13 is provided with through hole II 131, the hole diameter of the through hole II 131 is greater than the hole diameter of the inner ring 12a of gear ring 12, more specifically, slightly greater than the hole diameter of dedendum circle.Screw passes through fixed hole II 122 and fixed hole III 132, and gear ring 12 is assembled to movable piece 13, it is known that gear ring 12 and movable piece 13 can be integrally formed, in order to facilitate processing, it can also be split.
[0060] Please refer to Figure 5The fixed shaft 14 is composed of a shaft part 141 and a shaft cap part 142 connected with the shaft part 141. The outer diameter of the shaft part 141 matches the hole diameter of the third circular blind hole 112c on the fixed seat 11. A regulating hole 143 is coaxially arranged on the shaft part 141, and the hole diameter of the regulating hole 143 is equivalent to the through hole I 113. A plurality of fixed holes IV 144 are arranged around the regulating hole 143 at one end of the shaft part 141, and the fixed holes IV 144 correspond to the fixed holes I 114 on the fixed seat 11. The fixed shaft 14 passes through the through hole II 131 of the movable part 13 and the inner ring 12a of the gear ring 12 in sequence and partially extends into the third circular blind hole 112c. Screws pass through the fixed holes I 114 and the fixed holes IV 144 to assemble the fixed shaft 14 to the fixed seat 11.
[0061] Further, the shaft part 141 can pass through the through hole II 131 of the movable part 13 and the inner ring 12a of the gear ring 12. The shaft cap part 142 is used to prevent the movable part 13 from being separated from the shaft part 141.
[0062] The shaft part 141 is uniformly provided with grooves 145 in the circumferential direction for accommodating the elastic block assembly 15. In combination with Figure 5 , Figure 6 and Figure 7 , the grooves 145 are left-right symmetrical structures, a groove hole 145a is arranged at the center position, the groove hole extends to the regulating hole 143, and blind holes 145b are symmetrically arranged on both sides of the groove hole 145a.
[0063] Please refer to Figure 7 , Figure 8a and Figure 8b , the elastic block assembly 15 includes an elastic block body 151 and an elastic part I 152. The elastic block body 151 is provided with teeth 151a at the front end matching the tooth grooves 121 on the gear ring 12, wings 151b are arranged at both sides of the front end of the elastic block body 151, and convex parts 151b1 connected with the elastic part I 152 are arranged at the opposite sides of the wings 151b. The tail end of the elastic block body 151 is provided with a circular arc surface 151c, and the radius of the circular arc surface 151c is equivalent to the radius of the regulating hole 143 on the fixed shaft 14. The elastic block body 151 is accommodated in the groove hole 145a of the groove 145, the elastic part I 152 is accommodated in the blind hole 145b of the groove 145, the groove 145 of the fixed shaft 14 can completely accommodate the elastic block body 151, and the wings 151b have the same circular arc surface as the shaft part 141.
[0064] Please refer to Figure 9 and Figure 10, the adjusting rod assembly 16 comprises an adjusting rod body 161 and an elastic member II 162. The adjusting rod body 161 comprises an adjusting rod 161a and a button 161b connected to one end of the adjusting rod 161a; the adjusting rod 161a has a plurality of coaxial cylindrical sections with different diameters, specifically comprising a first section 161a1, a second section 161a2 and a third section 161a3 connecting the first section 161a1 and the second section 161a2, as shown in the example Figure 9 , the outer diameter of the first section 161a1 is smaller than that of the second section 161a2, and the adjusting rod 161a is inserted into the through hole I 113 and the adjusting hole 143 through the first circular blind hole 111a.
[0065] The outer edge of the button 161b is provided with a clamping protrusion 161b1 matched with the flange 111b of the fixed seat 11, so that the button 161b can slide in the first circular blind hole 111a along the axis 115 of the fixed seat 111.
[0066] Please refer to Figure 10 , the adjusting rod 161a of the adjusting rod body 161 can pass through the through hole I 113 of the fixed seat 11 and extend into the adjusting hole 143 of the fixed shaft 14. The elastic member II 162 is sleeved on the adjusting rod 161a between the button 161b and the fixed seat 11, and the adjusting rod body 161 can reset under the elastic force of the elastic member II 162 when the button 161b is pressed.
[0067] It should be noted that in order to improve the smoothness of the rotation adjustment of the movable part 13, a gasket 17 is arranged between the fixed seat 11 and the gear ring 12 in the third circular blind hole 112c, and a gasket 17 is arranged between the movable part 13 and the shaft cap part 142 of the fixed shaft 14.
[0068] It should be noted that the first section 161a1 and the second section 161a2 of the adjusting rod 161a cooperate with the spring block assembly in the groove 145 of the fixed shaft 14. Specifically, when the button 161b is pressed, the first section 161a1 slides to the position of the groove 145a. Under the elastic force of the elastic element I 152, the spring block body 151 meshes with the tooth groove 121 in the gear ring 12. At this time, rotating the movable part 13 allows the spring block body 151 to extend and retract into the adjusting hole 143. The gear ring 12 and the spring block body 151 are in an adjustable state, and the angle can be adjusted. When the pressing is canceled, the button 161b is in the elastic element II Under the action of the elastic force of 162, the second section 161a2 is reset, causing the second section 161a2 to slide to the position of the slot 145a. Since the outer diameter of the second section 161a2 is larger than the outer diameter of the first section 161a1, when the movable part 13 is rotated, the tail end of the spring block body 151 contacts the outer side of the second section 161a2, and cannot perform telescopic movement in the slot 145a. This makes the movable part 13 (fixedly connected to the gear ring 12) and the fixed shaft 14 (the spring block body 151 inside) locked. The fixed shaft 14 is fixed together with the fixed seat 11, thereby realizing the angle adjustment control.
[0069] Please see Figures 1-10 When assembling the angle adjustment mechanism 10, the gear ring 12 and the movable part 13 are fixedly connected, as in the embodiment by screws. It is known that they can also be connected by welding or screws. The shaft part 141 of the fixed shaft 14 passes through the through hole II 131 of the gear ring 12 and the movable part 13 and is fixed on the fixed seat 11. Specifically, the shaft part 141 extends into the third circular blind hole 112c. The fixed shaft 14 and the fixed seat 11 are assembled together by screws passing through the fixed hole I 114 and the fixed hole IV 144. The spring block assembly 15 is provided in the groove 145 of the shaft part 141, wherein the teeth 151a of the spring block body 151 cooperate with the tooth groove 121 of the gear ring 12. Finally, the adjusting rod body 161 is fitted with the elastic part II 162 and inserted into the through hole I 113 and the adjusting hole 143 by the first surface 111 of the fixed seat 11, so that the locking protrusion 161b1 on the outside of the button 161b is locked into the first circular blind hole 111a.
[0070] This utility model also proposes a projector stand, such as Figure 11 and Figure 12 The projector bracket 20 includes a base plate 21 and an angle adjustment mechanism 10 disposed on the base plate 21. The end of the movable part 13 is provided with a fixing part 22 for fixing the projector, such as a screw or a support plate.
[0071] It is known that the movable part 13 can be replaced by a telescopic rod, or an angle adjustment mechanism 10 can be set at the end of the movable part 13 to adjust the tilt angle of the projector.
Claims
1. Angle adjustment mechanism (10), characterized in that The utility model relates to a kind of adjustable gear box, including: Fixed seat (11), the fixed seat (11) has first surface (111) and the second surface (112) on the opposite side of the first surface (111), first circular blind hole (111a) is opened on the first surface (111), second circular blind hole (112b) and third circular blind hole (112c) and through hole I (113) are coaxially opened on the second surface (112) corresponding to the first circular blind hole (111a), the aperture of the through hole I (113) is smaller than the aperture of the third circular blind hole (112c), the aperture of the third circular blind hole (112c) is smaller than the aperture of the second circular blind hole (112b), fixed hole I (114) is arranged around the through hole I (113); Gear ring (12), the gear ring (12) is annular structure and is contained in the second circular blind hole (112b), gear slot (121) is arranged in the inner ring (12a) of the gear ring (12) and fixed hole II (122) is arranged around the inner ring (12a); Movable element (13), one end of the movable element (13) is opened through hole II (131) and fixed hole III (132) is arranged around the through hole II (131), the fixed hole III (132) corresponds with the fixed hole II (122), the gear ring (12) is fixed on the movable element (13);The aperture of the through hole II (131) is greater than the aperture of the inner ring (12a); Fixed shaft (14), the fixed shaft (14) is composed of shaft portion (141) and shaft cap portion (142) connected with the shaft portion (141);Adjusting hole (143) is coaxially opened in the shaft portion (141), fixed hole IV (144) is arranged around the adjusting hole (143), the fixed hole IV (144) corresponds with the fixed hole I (114) on the fixed seat (11), the fixed shaft (14) passes through the through hole II (131) and the inner ring (12a) in sequence and part is inserted into the third circular blind hole (112c);The outer diameter of the shaft portion (141) matches the aperture of the third circular blind hole (112c) on the fixed seat (11);The fixed shaft (14) is fixed on the fixed seat (11);The shaft portion (141) is uniformly opened in the axial direction and is used for accommodating spring block assembly (15) groove (145); The spring block assembly (15) has tooth (151a) matched with the gear slot (121); Adjusting rod assembly (16), the adjusting rod assembly (16) has adjusting rod (161a) of the coaxial cylinder form of section of different diameters, the section includes first section (161a1), second section (161a2) and third section (161a3) transitionally connecting the first section (161a1) and the second section (161a2), the outer diameter of the first section (161a1) is smaller than the outer diameter of the second section (161a2);The adjusting rod (161a) is inserted into the through hole I (113) and the adjusting hole (143) by the first circular blind hole (111a).
2. The angle adjusting mechanism according to claim 1, characterized in that, the elastic block assembly (15) comprises an elastic block body (151) and an elastic member I (152); the tooth (151a) is arranged at the front end of the elastic block body (151), wing portions (151b) are arranged at both sides of the front end of the elastic block body (151), and protruding portions (151b1) connected with the elastic member I (152) are arranged at opposite sides of the wing portions (151b); a slot hole (145a) is arranged at the center of the slot (145), and blind holes (145b) are arranged at both sides of the slot hole (145a); the slot hole (145a) extends to the adjusting hole (143); the elastic block body (151) is arranged in the slot hole (145a), and the elastic member I (152) is arranged in the blind hole (145b).
3. The angular adjustment mechanism of claim 2, wherein, an arc surface (151c) is arranged at the tail end of the elastic block body (151).
4. The angular adjustment mechanism of claim 3, wherein, the adjusting rod assembly (16) comprises an adjusting rod body (161) and an elastic member II (162); the adjusting rod body (161) comprises an adjusting rod (161a) and a button (161b) connected with the adjusting rod (161a); and the elastic member II (162) is sleeved on the adjusting rod (161a).
5. The angular adjustment mechanism of claim 4, wherein, a flange (111b) is arranged at the edge of a first circular blind hole (111a) of the fixed seat (11), and a clamping protrusion (161b1) is arranged at the outer edge of the button (161b); the clamping protrusion (161b1) is matched with the flange (111b).
6. The angular adjustment mechanism of claim 5, wherein, the adjusting rod body (161) passes through a through hole I (113) of the fixed seat (11) and extends into the adjusting hole (143); and the elastic member II (162) is sleeved on the adjusting rod (161a) between the button (161b) and the fixed seat (11).
7. The angle adjustment mechanism according to any one of claims 1 to 6, characterized in that a gasket (17) is arranged in a third circular blind hole (112c) between the fixed seat (11) and the gear ring (12), and a gasket (17) is arranged between the movable member (13) and a shaft cap portion (142) of the fixed shaft (14).
8. A projector support, characterised in that the angle adjusting mechanism (10) according to any one of claims 1 to 7 is arranged on a bottom plate (21); and a fixing member (22) for fixing a projector is arranged at the tail end of the movable member (13).