Lens protection structure of projection equipment

Abstract

The utility model discloses a lens protection structure of projection equipment, which comprises a supporting mechanism, the top of the supporting mechanism is provided with a device main body, the device main body comprises a projector shell, the two sides of the top of the projector shell are fixedly provided with supporting frames, and the inner walls of the supporting frames on the two sides are both rotatably connected with clamping blocks. One ends of the clamping blocks penetrate through the supporting frame and are fixedly connected with torsional springs, the other ends of the torsional springs are fixedly connected with the supporting frame, the inner walls of the other ends of the clamping blocks on the two sides are slidably connected with protective plates, and limiting blocks are fixedly installed on the outer walls of the tops and the outer walls of the bottoms of the protective plates correspondingly; when the projector needs to be used, the protection plate is turned upwards to expose the lens, then the baffle is pushed inwards along the limiting groove to store the baffle, the protection plate is reset by pressing the pressing plate downwards, and the projector is convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of projector technology, in particular to a lens protection structure of a projection device. Background Art

[0002] A Chinese patent discloses a projector with a lens protection structure (publication number: CN219349337U), the device includes a projector body, the upper surface of the projector body is provided with a protection device, the protection device includes a servo motor, the servo motor is fixedly connected to the upper surface of the projector body, the output end of the servo motor is fixedly connected to a rope-collecting rod, the arc surface of the rope-collecting rod is fixedly connected to a suspension rope, the side of the projector body close to the servo motor is fixedly connected to a connecting plate, the surface of the connecting plate away from the projector body is fixedly connected to a wire rod, and the end of the wire rod away from the connecting plate is fixedly connected to a block.

[0003] The above device is provided with a block that can be raised and lowered, and the block blocks the idle projector lens. Although this can provide protection, the height of the slides on both sides of the block used for limiting is too high, which may block the projection light of the projector. In addition, the block is driven to rise and fall by a servo motor and a suspension rope. The servo motor not only releases heat during use, affecting the heat dissipation of the projector, but also greatly increases the cost of the device. Utility Model Content

[0004] The technical problems to be solved by the utility model are as follows: the protection mechanism affects the projection effect, the protection mechanism is not only expensive but also affects the heat dissipation of the projector.

[0005] The purpose of the utility model can be achieved through the following technical solutions:

[0006] A lens protection structure for a projection device comprises a supporting mechanism, wherein a device body is arranged on the top of the supporting mechanism, and the device body comprises a projector housing, support frames are fixedly installed on both sides of the top of the projector housing, inner walls of the support frames on both sides are rotatably connected with clamping blocks, one end of the clamping block passes through the supporting frame and is fixedly connected with a torsion spring, the other end of the torsion spring is fixedly connected to the supporting frame, and the inner walls of the other ends of the clamping blocks on both sides are slidably connected with protective plates, the top outer wall and the bottom outer wall of the protective plate are fixedly installed with limit blocks, and the protective plate is located at the limit blocks and is movably connected with the clamping blocks.

[0007] As a further solution of the utility model: the inner walls on both sides of the top of the protective plate are slidably connected with a movable shaft, half of one end of the movable shaft is an arc-shaped head, the other end of the movable shaft is fixedly connected with a spring 1, and the other end of the spring 1 is fixedly connected to the protective plate.

[0008] As a further solution of the utility model: a limiting groove is provided on the inner wall of the support frame, the inner wall of the limiting groove is slidably connected to the movable shaft, a fixing plate is fixedly installed on the top of the projector housing and located near the limiting groove, and push shafts are slidably connected to the inner walls of the fixing plates on both sides, and one end of the push shaft passes through the fixing plate and is slidably connected to the limiting groove.

[0009] As a further solution of the utility model: a pressure plate is slidably connected to the outer side of the fixed plate, both sides of the bottom of the pressure plate are opened as inclined surfaces, and both sides of the bottom of the pressure plate are slidably connected to the push shaft, and a spring 2 is fixedly installed on the middle inner wall of the pressure plate, and the other end of the spring 2 is fixedly connected to the fixed plate.

[0010] As a further solution of the utility model: the support mechanism includes a telescopic rod, the top of the telescopic rod is fixedly connected to a support plate, the top of the support plate is movably connected to the projector housing, and both sides of the outer wall of the support plate are fixedly connected to a limited position frame.

[0011] As a further solution of the utility model: a bidirectional threaded rod is rotatably connected to the inner wall of the middle part of the support plate, both ends of the bidirectional threaded rod pass through the limit frame and are rotatably connected to the limit frame, threaded sleeves are threaded on both sides of the outer wall of the bidirectional threaded rod, the bottom of the threaded sleeve is slidably connected to the limit frame, the top of the threaded sleeve is fixedly connected to a splint, and the top of the splint is movably connected to the projector housing.

[0012] As a further solution of the utility model: a gasket is fixedly installed on the side of the protective plate away from the limiting block, and the gasket is movably connected to the projector housing.

[0013] Beneficial effects of the utility model:

[0014] (1) The utility model sets a protective plate in front of the projector lens. When the projector needs to be used, the protective plate is flipped upward to expose the lens. Then the baffle is pushed inward along the limit groove to store the baffle. The protective plate can be reset by pressing the pressure plate downward. The device is easy to use, not only does it not affect the projection effect, but also has a low cost.

[0015] (2) The device clamps and supports the projector through a supporting mechanism, and the spacing between the clamping plates can be controlled by rotating the bidirectional threaded rod, thereby facilitating the tightening and loosening of the projector. The operation is simple and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2It is a schematic diagram of the internal structure of the protective plate in the utility model;

[0019] Figure 3 yes Figure 2 A schematic diagram of the enlarged structure of region A;

[0020] Figure 4 It is a side view structural diagram of the device body in the utility model;

[0021] Figure 5 It is a schematic diagram of the overall structure when the protective plate is flipped over;

[0022] Figure 6 It is a side view schematic diagram of the overall structure of the movable shaft in the utility model.

[0023] In the figure: 1. supporting mechanism; 101. telescopic rod; 102. supporting plate; 103. limiting frame; 104. bidirectional threaded rod; 105. threaded sleeve; 106. clamping plate; 2. device body; 201. projector housing; 202. protective plate; 203. supporting frame; 204. fixing plate; 205. clamping block; 206. movable shaft; 207. spring 1; 208. torsion spring; 209. pressure plate; 210. spring 2; 211. push shaft; 212. limiting groove; 213. gasket. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] like Figure 1-6 As shown, a lens protection structure of a projection device comprises a support mechanism 1, a device body 2 is arranged on the top of the support mechanism 1, the device body 2 comprises a projector housing 201, support frames 203 are fixedly installed on both sides of the top of the projector housing 201, the inner walls of the support frames 203 on both sides are rotatably connected with clamping blocks 205, one end of the clamping block 205 passes through the support frame 203 and is fixedly connected with a torsion spring 208, the other end of the torsion spring 208 is fixedly connected to the support frame 203, the inner walls of the other ends of the clamping blocks 205 on both sides are slidably connected with a protective plate 202, the top outer wall and the bottom outer wall of the protective plate 202 are fixedly installed with limit blocks, the protective plate 202 is located at the limit blocks and is movably connected to the clamping block 205, the torsion spring 208 controls the clamping block 205 to reset after rotation, and the protective plate 202 is arranged at the limit blocks on both sides of the clamping block 205 to prevent the protective plate 202 from separating from the clamping block 205;

[0026] The inner walls on both sides of the top of the protective plate 202 are slidably connected with a movable shaft 206, half of one end of the movable shaft 206 is an arc-shaped head, the other end of the movable shaft 206 is fixedly connected with a spring 207, the other end of the spring 207 is fixedly connected to the protective plate 202, the arc-shaped head of the movable shaft 206 contacts the support frame 203 when the protective plate 202 rotates, and the movable shaft 206 is compressed into the interior of the protective plate 202;

[0027] The inner wall of the support frame 203 is provided with a limiting groove 212, the inner wall of the limiting groove 212 is slidably connected with the movable shaft 206, a fixing plate 204 is fixedly installed on the top of the projector housing 201 and located near the limiting groove 212, and a push shaft 211 is slidably connected to the inner walls of the fixing plates 204 on both sides, one end of the push shaft 211 passes through the fixing plate 204 and is slidably connected with the limiting groove 212, and the push shaft 212 can slide in the limiting groove 212 and push out the movable shaft 206 inside the limiting groove 212;

[0028] The outer side of the fixed plate 204 is slidably connected with a pressing plate 209, and both sides of the bottom of the pressing plate 209 are provided with inclined surfaces, and both sides of the bottom of the pressing plate 209 are slidably connected with a push shaft 211, and a spring 210 is fixedly installed on the inner wall of the middle part of the pressing plate 209, and the other end of the spring 210 is fixedly connected with the fixed plate 204. When the pressing plate 209 is pressed down, the inclined surface pushes the push shaft 211 into the limiting groove 212, so that the push shaft 212 pushes the movable shaft 206 out of the limiting groove 212;

[0029] The support mechanism 1 includes a telescopic rod 101, the top of the telescopic rod 101 is fixedly connected to a support plate 102, the top of the support plate 102 is movably connected to the projector housing 201, and both sides of the outer wall of the support plate 102 are fixedly connected to a limited position frame 103. The telescopic rod 101 is a prior art that can adjust the length;

[0030] The inner wall of the middle part of the support plate 102 is rotatably connected with a bidirectional threaded rod 104, and both ends of the bidirectional threaded rod 104 pass through the limit frame 103 and are rotatably connected with the limit frame 103. Both sides of the outer wall of the bidirectional threaded rod 104 are threadedly sleeved with threaded sleeves 105, and the bottom of the threaded sleeve 105 is slidably connected with the limit frame 103. The top of the threaded sleeve 105 is fixedly connected with a clamping plate 106, and the top of the clamping plate 106 is movably connected with the projector housing 201. When the bidirectional threaded rod 104 is rotated, the threaded sleeves 105 on both sides of the bidirectional threaded rod 104 move in relative directions, thereby facilitating the adjustment of the spacing of the clamping plates 106.

[0031] A gasket 213 is fixedly installed on the side of the protection plate 202 away from the limiting block. The gasket 213 is movably connected to the projector housing 201. The gasket is a sponge gasket to prevent the protection plate 202 from impacting the projector housing 201 when it is reset.

[0032] The working principle of this utility model:

[0033] When the projector needs to be used, the shielding of the lens by the protective plate 202 must be removed. First, the protective plate 202 is rotated. The protective plate 202 drives the clamping block 205 to rotate inside the support frame 203. The torsion spring 208 stores elastic potential energy. The movable shaft 206 at the end of the protective plate 202 contacts the support frame 203 with one side of the arc surface during rotation. The movable shaft 206 is compressed and contracted, and the spring 1 207 contracts. When the movable shaft 206 rotates to the limit groove 212, the spring 1 207 pushes the movable shaft 206 to return and extend. At this time, the rotation of the protective plate 202 is blocked, and then the protective plate 202 is pushed to slide inside the clamping block 205 for storage, while the movable shaft 206 slides inside the limit groove 212.

[0034] Secondly, when the protective plate 202 needs to be reset, the pressure plate 209 is pressed downward, and the pressure plate 209 drives the inclined surface on the bottom side to be pressed downward. During this period, the pressure plate 209 pushes the push shaft 211 to the inside of the limiting groove 212, and the push shaft 211 pushes the movable shaft 206 away from the limiting groove 212. At this time, the torsion spring 208 releases its elastic potential energy, and the protective plate 202 rotates to reset, and the protective plate 202 slides downward inside the clamping block 205 under the action of gravity.

[0035] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A lens protection structure for a projection device, comprising a support mechanism (1), characterized in that: A device body (2) is arranged on the top of the support mechanism (1), and the device body (2) comprises a projector housing (201), support frames (203) are fixedly installed on both sides of the top of the projector housing (201), and the inner walls of the support frames (203) on both sides are rotatably connected with clamping blocks (205), one end of the clamping block (205) passes through the support frame (203) and is fixedly connected with a torsion spring (208), and the other end of the torsion spring (208) is fixedly connected to the support frame (203), and the inner walls of the other ends of the clamping blocks (205) on both sides are slidably connected with protective plates (202), and the top outer wall and the bottom outer wall of the protective plate (202) are fixedly installed with limit blocks, and the protective plate (202) is located at the limit block and is movably connected to the clamping block (205).

2. The lens protection structure of a projection device according to claim 1, characterized in that: The inner walls on both sides of the top of the protective plate (202) are slidably connected with a movable shaft (206), half of one end of the movable shaft (206) is an arc-shaped head, and the other end of the movable shaft (206) is fixedly connected with a spring 1 (207), and the other end of the spring 1 (207) is fixedly connected to the protective plate (202).

3. The lens protection structure of a projection device according to claim 1, characterized in that: The inner side wall of the support frame (203) is provided with a limiting groove (212), the inner wall of the limiting groove (212) is slidably connected to the movable shaft (206), a fixing plate (204) is fixedly installed on the top of the projector housing (201) and located near the limiting groove (212), and the inner walls of the fixing plates (204) on both sides are slidably connected to push shafts (211), and one end of the push shaft (211) passes through the fixing plate (204) and is slidably connected to the limiting groove (212).

4. The lens protection structure of a projection device according to claim 3, characterized in that: The outer side of the fixed plate (204) is slidably connected to a pressure plate (209), both sides of the bottom of the pressure plate (209) are provided with inclined surfaces, and both sides of the bottom of the pressure plate (209) are slidably connected to a push shaft (211), and a spring 2 (210) is fixedly installed on the inner wall of the middle part of the pressure plate (209), and the other end of the spring 2 (210) is fixedly connected to the fixed plate (204).

5. The lens protection structure of a projection device according to claim 1, characterized in that: The support mechanism (1) comprises a telescopic rod (101), the top of the telescopic rod (101) is fixedly connected to a support plate (102), the top of the support plate (102) is movably connected to a projector housing (201), and both sides of the outer wall of the support plate (102) are fixedly connected to a limit frame (103).

6. The lens protection structure of a projection device according to claim 5, characterized in that: A bidirectional threaded rod (104) is rotatably connected to the inner wall of the middle part of the support plate (102); both ends of the bidirectional threaded rod (104) pass through the limit frame (103) and are rotatably connected to the limit frame (103); threaded sleeves (105) are threadedly sleeved on both sides of the outer wall of the bidirectional threaded rod (104); the bottom of the threaded sleeve (105) is slidably connected to the limit frame (103); the top of the threaded sleeve (105) is fixedly connected to a clamping plate (106); and the top of the clamping plate (106) is movably connected to the projector housing (201).

7. The lens protection structure of a projection device according to claim 1, characterized in that: A gasket (213) is fixedly mounted on the side of the protection plate (202) that is located away from the limiting block, and the gasket (213) is movably connected to the projector housing (201).

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