Projection display device

Abstract

The utility model relates to the technical field of display devices, and discloses a projection display device which comprises a base, a mounting column fixedly mounted on the upper portion of the base, an adjusting column sleeved with the mounting column, a connecting column fixedly connected to the top end of the adjusting column, a mounting frame fixedly connected to the top end of the connecting column, and a curtain arranged on the lower portion of the mounting frame. The connecting assembly comprises a dismounting and mounting mechanism arranged on the upper portion of the base, an adjusting mechanism is arranged on the upper portion of the base, moving wheels are arranged at the bottom of the base, a first gear is meshed with a second gear, and a clamping block is fixedly connected with a mounting block. The ends, away from the limiting blocks, of the first springs are fixedly connected with the limiting rods. According to the utility model, the problem that the projection effect of the curtain is affected because the curtain is easy to be polluted when the curtain is used for a long time due to the fact that the curtain storage assembly of the existing device is inconvenient to disassemble and the curtain is convenient to clean manually is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of display devices, in particular to a projection display device. Background Art

[0002] Projection refers to the use of a set of light rays to project the shape of an object onto a plane, and the image obtained on the plane is generally set up as a screen. The projection screen is a tool used to display images and video files in visual communication systems.

[0003] According to patent publication number CN 220730617 U, a projection display device is disclosed. The device uses movable wheels provided on the base to realize the movement of the projection display device at any time, making it convenient for the projection display device to perform projection display at any position, and is more convenient to use. At the same time, the height of the projection screen can be adjusted at any time using a telescopic member to meet the requirements of projection displays at different heights. In addition, the screen storage device can automatically store the projection screen to prevent external dust from contaminating the projection screen. However, the device is not convenient for disassembling the screen storage component, which makes it easy to manually clean the screen. When the screen is used for a long time, it is easy to be contaminated, thereby affecting the projection effect of the screen.

[0004] To this end, we proposed a projection display device to solve the problem. Utility Model Content

[0005] The purpose of the present invention is to provide a projection display device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a projection display device, comprising a base;

[0007] A mounting post fixedly mounted on the upper portion of the base;

[0008] an adjusting column sleeved inside the mounting column;

[0009] A connecting column fixedly connected to the top of the adjusting column;

[0010] a mounting bracket fixedly connected to the top of the connecting column;

[0011] A curtain arranged at the lower portion of the mounting frame;

[0012] And a connecting component arranged on the upper part of the base, the connecting component includes a disassembly and assembly mechanism arranged on the upper part of the base, an adjustment mechanism is arranged on the upper part of the base, and a moving wheel is arranged on the bottom of the base.

[0013] Preferably, the disassembly and assembly mechanism includes a motor fixedly mounted on the right side of the mounting frame through a fixing frame, the output end of the motor is fixedly connected to the first gear, the bottom of the mounting frame is provided with a mounting slot, the inner wall of the mounting slot is clamped with a mounting block, the inner wall of the mounting slot is provided with a clamping slot, the inner wall of the clamping slot is slidably connected with a clamping block, the inside of the mounting block is rotatably connected to the storage shaft through a bearing, and the curtain is arranged on the outside of the storage shaft, the right end of the storage shaft is fixedly connected to the second gear, the bottom of the mounting frame is rotatably connected to the limit rod through a bearing, one end of the limit rod is movably connected to the clamping rod, the outer end of the clamping rod is fixedly connected to the limit block, the inner side of the limit block is fixedly connected to the first spring, and the bottom of the mounting frame is provided with a clamping slot.

[0014] Preferably, the adjustment mechanism includes a handle fixedly connected to the outer wall of the adjustment column, an adjustment slot is provided on the outer wall of the adjustment column, an adjustment rod is movably connected to one side of the mounting column, a pull rod is fixedly connected to the outer end of the adjustment rod, a second spring is fixedly connected to the inner side of the pull rod, a positioning rod is fixedly connected to the inner side of the pull rod, and a positioning slot is provided on one side of the mounting column.

[0015] Preferably, the first gear is meshed with the second gear, and the clamping block is fixedly connected to the mounting block. Through the cooperation of the first gear, the second gear, the storage shaft and the mounting block, the curtain can be stored in the mounting frame, thereby preventing the curtain from being contaminated by the outside world.

[0016] Preferably, the first spring is fixedly connected to the limiting rod at one end away from the limiting block, the inner side of the limiting rod is fitted with the bottom of the mounting block, and the clamping rod is clamped with the clamping groove. Through the cooperation of the mounting groove, the mounting block, the clamping groove, the clamping block, the limiting rod, the clamping rod, the first spring and the clamping groove, it is convenient to manually disassemble the storage shaft, thereby facilitating manual cleaning of the screen arranged outside the storage shaft, thereby preventing the screen from being contaminated after long-term use and affecting the projection effect of the screen.

[0017] Preferably, the adjusting rod is clamped with the adjusting slot, and the second spring is fixedly connected to the mounting column at one end away from the pull rod. Through the cooperation of the mounting column, the adjusting column, the connecting column, the adjusting slot, the adjusting rod, the pull rod, and the second spring, the height of the mounting frame can be adjusted, thereby adjusting the height of the curtain, thereby increasing the applicability of the device.

[0018] Preferably, the positioning rod is adapted to the positioning slot. Through the cooperation of the positioning rod and the positioning slot, the adjustment rod can be kept at a position away from the adjustment slot, thereby freeing up a person's hands and making it easier to manually adjust the height of the mounting frame.

[0019] The utility model provides a projection display device. The projection display device has the following beneficial effects:

[0020] The projection display device is provided with a disassembly and assembly mechanism. Under the action of the first gear, the second gear, the storage shaft, and the mounting block, the screen can be stored in the mounting frame, thereby preventing the screen from being contaminated by the outside. Under the action of the mounting groove, the mounting block, the clamping groove, the clamping block, the limit rod, the clamping rod, the first spring, and the clamping groove, the storage shaft can be easily disassembled manually, thereby facilitating manual cleaning of the screen arranged outside the storage shaft, thereby preventing the screen from being contaminated during long-term use and affecting the projection effect of the screen.

[0021] The projection display device is provided with an adjustment mechanism. Under the action of the mounting column, adjustment column, connecting column, adjustment slot, adjustment rod, pull rod and second spring, the height of the mounting frame can be adjusted, thereby adjusting the height of the screen, thereby increasing the applicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the overall cross-sectional structure of the utility model;

[0024] Figure 3 This is a schematic diagram of the disassembly and assembly mechanism structure of the utility model;

[0025] Figure 4 This is a schematic diagram of the partial structure of the disassembly and assembly mechanism of the utility model;

[0026] Figure 5 This is a schematic diagram of the structure of the adjustment mechanism of the utility model;

[0027] In the figure: 1. Base; 2. Mounting frame; 3. Connecting assembly; 31. Disassembly and assembly mechanism; 311. Motor; 312. First gear; 313. Mounting slot; 314. Mounting block; 315. Slot; 316. Block; 317. Storage shaft; 318. Second gear; 319. Limit rod; 3110. Clamping rod; 3111. Limit block; 3112. First spring; 3113. Clamping slot; 32. Adjustment mechanism; 321. Handle; 322. Adjustment slot; 323. Adjustment rod; 324. Pull rod; 325. Second spring; 326. Positioning rod; 327. Positioning slot; 4. Curtain; 5. Mounting column; 6. Adjustment column; 7. Connecting column. DETAILED DESCRIPTION

[0028] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation methods of the present invention are now described with reference to the accompanying drawings.

[0029] Example 1: Figure 1-5As shown, the utility model provides a technical solution: a projection display device, including a base 1, a mounting column 5 fixedly mounted on the upper part of the base 1, an adjusting column 6 sleeved inside the mounting column 5, a connecting column 7 fixedly connected to the top of the adjusting column 6, a mounting frame 2 fixedly connected to the top of the connecting column 7, a screen 4 arranged at the lower part of the mounting frame 2, and a connecting component 3 arranged on the upper part of the base 1, the connecting component 3 includes a disassembly and assembly mechanism 31 arranged on the upper part of the base 1, an adjusting mechanism 32 is arranged on the upper part of the base 1, a moving wheel is arranged at the bottom of the base 1, the disassembly and assembly mechanism 31 includes a motor 311 fixedly mounted on the right side of the mounting frame 2 through a fixing frame, the output end of the motor 311 is fixedly connected to a first gear 312, and the mounting frame A mounting groove 313 is defined at the bottom, a mounting block 314 is clamped to the inner wall of the mounting groove 313, a clamping groove 315 is defined at the inner wall of the mounting groove 313, a clamping block 316 is slidably connected to the inner wall of the clamping groove 315, a storage shaft 317 is rotatably connected to the interior of the mounting block 314 via a bearing, and the curtain 4 is disposed on the exterior of the storage shaft 317. A second gear 318 is fixedly connected to the right end of the storage shaft 317. A limit rod 319 is rotatably connected to the bottom of the mounting frame 2 via a bearing, one end of the limit rod 319 is movably connected to a clamping rod 3110, the outer end of the clamping rod 3110 is fixedly connected to a limit block 3111, and a first spring 3112 is fixedly connected to the inner side of the limit block 3111. A clamping groove 3113 is defined at the bottom of the mounting frame 2.

[0030] In this embodiment, the first gear 312 is meshed with the second gear 318, and the clamping block 316 is fixedly connected to the mounting block 314. Through the cooperation of the first gear 312, the second gear 318, the storage shaft 317, and the mounting block 314, the curtain 4 can be stored in the mounting frame 2, thereby preventing the curtain 4 from being contaminated by the outside world.

[0031] Furthermore, the first spring 3112 is fixedly connected to the limiting rod 319 at one end away from the limiting block 3111, the inner side of the limiting rod 319 is fitted with the bottom of the mounting block 314, and the clamping rod 3110 is clamped with the clamping groove 3113. Through the cooperation of the mounting groove 313, the mounting block 314, the clamping groove 315, the clamping block 316, the limiting rod 319, the clamping rod 3110, the first spring 3112, and the clamping groove 3113, it is convenient to manually disassemble the storage shaft 317, thereby facilitating manual cleaning of the screen 4 set outside the storage shaft 317, thereby preventing the screen 4 from being contaminated due to long-term use and affecting the projection effect of the screen 4.

[0032] When the storage shaft 317 needs to be disassembled, first manually pull the clamping rod 3110 downward to separate the clamping rod 3110 from the clamping groove 3113, then manually rotate the limiting rod 319 to keep the limiting rod 319 away from the bottom of the mounting block 314, and then manually remove the mounting block 314. Since the storage shaft 317 is rotatably connected to the mounting block 314 through the bearing, the storage shaft 317 can be removed downward, making it easier to manually clean the curtain 4 set outside the storage shaft 317, thereby preventing the curtain from being damaged. The cloth 4 is contaminated after long-term use, which affects the projection effect of the screen 4. When the storage shaft 317 needs to be installed, it is only necessary to manually match the installation block 314 and the clamping block 316 with the installation groove 313 and the clamping groove 315 respectively, and engage the second gear 318 fixed to the right end of the storage shaft 317 with the first gear 312. Then, by manually rotating the limit rod 319 and re-clamping the clamping rod 3110 with the clamping groove 3113, the limiting effect of the installation block 314 can be achieved through the limit rod 319, and the installation operation can be completed.

[0033] Example 2: Based on Example 1, a preferred embodiment of a projection display device provided by the present invention is as follows: Figures 1 to 5 As shown: the adjustment mechanism 32 includes a handle 321 fixedly connected to the outer wall of the adjustment column 6, an adjustment slot 322 is provided on the outer wall of the adjustment column 6, an adjustment rod 323 is movably connected to one side of the mounting column 5, a pull rod 324 is fixedly connected to the outer end of the adjustment rod 323, a second spring 325 is fixedly connected to the inner side of the pull rod 324, a positioning rod 326 is fixedly connected to the inner side of the pull rod 324, and a positioning slot 327 is provided on one side of the mounting column 5.

[0034] In this embodiment, the adjusting rod 323 is engaged with the adjusting slot 322, and the second spring 325 is fixedly connected to the mounting column 5 at one end away from the pull rod 324. Through the cooperation of the mounting column 5, the adjusting column 6, the connecting column 7, the adjusting slot 322, the adjusting rod 323, the pull rod 324, and the second spring 325, the height of the mounting frame 2 can be adjusted, thereby adjusting the operating height of the curtain 4, thereby increasing the applicability of the device.

[0035] Furthermore, the positioning rod 326 is adapted to the positioning slot 327. Through the cooperation of the positioning rod 326 and the positioning slot 327, the adjustment rod 323 can be kept at a position away from the adjustment slot 322, thereby freeing up the hands of the user, making it easier to manually adjust the height of the mounting frame 2.

[0036] When adjustment is needed, it is only necessary to manually hold the pull rod 324 and pull the adjustment rod 323 outward to separate the adjustment rod 323 from the adjustment slot 322, and by moving the pull rod 324 outward, the positioning rod 326 fixed to the inner side of the pull rod 324 can be moved outward synchronously, and then the pull rod 324 is manually rotated and the positioning rod 326 is matched with the positioning slot 327. Under the action of the elastic force of the second spring 325, the positioning rod 326 and the positioning slot 327 can be engaged, so that the adjustment rod 323 can stay in a position away from the adjustment slot 322, so that the person can free up his hands and there is no need to hold the pull rod 324 all the time. Then, the above operation is repeated manually to adjust the The adjusting rod 323 at the other end is separated from the adjusting slot 322, and then the height of the adjusting column 6 can be adjusted manually by holding the handle 321. Under the action of the connecting column 7, the height of the mounting frame 2 can be adjusted, and then the use height of the curtain 4 can be adjusted, thereby increasing the applicability of the device. When the appropriate height is adjusted, the positioning rod 326 is manually separated from the positioning slot 327, and the adjusting rod 323 is matched with the corresponding adjusting slot 322. Then, under the action of the elastic force of the second spring 325, the adjusting rod 323 can be engaged with the adjusting slot 322, thereby achieving a limiting effect on the adjusting column 6, and completing the adjustment operation.

[0037] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A projection display device, comprising a base (1); A mounting post (5) fixedly mounted on the upper portion of the base (1); An adjustment column (6) sleeved inside the mounting column (5); A connecting column (7) fixedly connected to the top of the adjusting column (6); A mounting frame (2) fixedly connected to the top of the connecting column (7); A curtain (4) is arranged at the lower part of the mounting frame (2); and a connecting assembly (3) arranged on the upper part of the base (1), characterized in that: The connecting assembly (3) comprises a disassembly and assembly mechanism (31) arranged on the upper part of the base (1), an adjustment mechanism (32) is arranged on the upper part of the base (1), and a moving wheel is arranged on the bottom of the base (1).

2. A projection display device according to claim 1, characterized in that: The disassembly and assembly mechanism (31) comprises a motor (311) fixedly mounted on the right side of the mounting frame (2) via a fixing frame, an output end of the motor (311) being fixedly connected to a first gear (312), a mounting groove (313) being provided at the bottom of the mounting frame (2), a mounting block (314) being clamped on the inner wall of the mounting groove (313), a clamping groove (315) being provided on the inner wall of the clamping groove (315), a clamping block (316) being slidably connected to the inner wall of the clamping groove (315), and a storage shaft (316) being rotatably connected to the interior of the mounting block (314) via a bearing. 7), and the curtain (4) is arranged outside the storage shaft (317), the right end of the storage shaft (317) is fixedly connected to the second gear (318), the bottom of the mounting frame (2) is rotatably connected to the limit rod (319) through a bearing, one end of the limit rod (319) is movably connected to the clamping rod (3110), the outer end of the clamping rod (3110) is fixedly connected to the limit block (3111), the inner side of the limit block (3111) is fixedly connected to the first spring (3112), and the bottom of the mounting frame (2) is provided with a clamping groove (3113).

3. The projection display device according to claim 1, characterized in that: The adjustment mechanism (32) includes a handle (321) fixedly connected to the outer wall of the adjustment column (6), the outer wall of the adjustment column (6) is provided with an adjustment slot (322), one side of the mounting column (5) is movably connected to an adjustment rod (323), the outer end of the adjustment rod (323) is fixedly connected to a pull rod (324), the inner side of the pull rod (324) is fixedly connected to a second spring (325), the inner side of the pull rod (324) is fixedly connected to a positioning rod (326), and one side of the mounting column (5) is provided with a positioning slot (327).

4. The projection display device according to claim 2, characterized in that: The first gear (312) is meshed with the second gear (318), and the clamping block (316) is fixedly connected to the mounting block (314).

5. The projection display device according to claim 2, characterized in that: The first spring (3112) is fixedly connected to the limiting rod (319) at one end away from the limiting block (3111), the inner side of the limiting rod (319) is fitted with the bottom of the mounting block (314), and the clamping rod (3110) is clamped with the clamping groove (3113).

6. The projection display device according to claim 3, characterized in that: The adjusting rod (323) is engaged with the adjusting slot (322), and the end of the second spring (325) away from the pull rod (324) is fixedly connected to the mounting column (5).

7. The projection display device according to claim 3, characterized in that: The positioning rod (326) is adapted to the positioning groove (327).

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