Projector regulation and control device for conference equipment

Abstract

The invention discloses a projector regulation and control device for conference equipment, and the device comprises a main body unit which comprises a projector body and a projector lens fixedly connected in the projector body, one side of the projector body is fixedly connected with a control panel, and the two sides of the projector body are provided with heat dissipation grooves; by utilizing a first electric push rod, a control rod, a belt, a second electric push rod and a roller, a telescopic shaft of the first electric push rod simultaneously pushes a first threaded rod and a control plate, so that the first threaded rod and the control plate respectively drive a second threaded rod and a pull rod to move, and further, the first threaded rod drives the second threaded rod to rotate; and a second threaded rod and a third threaded rod are meshed with each other, so that the third threaded rod drives a coaxial rotating rod to synchronously rotate, the rotating rod drives a belt to rotate on the surface of the rotating rod, then the belt drives a roller to rotate, and the roller can drive the whole equipment to adjust the position.

Description

Technical Field

[0001] The present invention relates to the technical field of the structure of a projector control device, and particularly to a projector control device for conference equipment. Background Art

[0002] Projection imaging utilizes a high-power projection device, applies the principle of optical projection, and uses a high-brightness light source to project the video image of an imaging chip onto a curtain or a wall, presenting a visually impactful visual effect. Projection technology can be applied to outdoor environments, building facades, public buildings, stadiums, and can also be used in indoor environments, such as large exhibition halls, museums, theaters, tents, etc.

[0003] In a modern conference scenario, as an important visual display device, the performance and control flexibility of a projector are directly related to the conference efficiency and the accuracy of information transmission. Traditional projector control methods often rely on manually adjusting the position and angle of the projector, which is not only cumbersome to operate but also prone to introducing errors during the adjustment process, affecting the final projection effect. Summary of the Invention

[0004] The purpose of this part is to outline some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Simplifications or omissions may be made in this part, as well as in the abstract and title of the present application, to avoid obscuring the purpose of this part, the abstract, and the title. However, such simplifications or omissions shall not be used to limit the scope of the present invention.

[0005] In view of the above problems existing in the prior art of a projector control device for conference equipment, the present invention is proposed.

[0006] Therefore, the purpose of the present invention is to provide a projector control device for conference equipment, which is suitable for solving the problem that errors are easily introduced during manual adjustment, affecting the final projection effect.

[0007] To solve the above technical problems, the present invention provides the following technical solution: A projector control device for conference equipment, the projector control device includes:

[0008] A main body unit, which includes a projector body and a projector lens fixedly connected inside the projector body. One side of the projector body is fixedly connected with a control board, and heat dissipation slots are opened on both sides of the projector body;

[0009] Adjustment control unit, which includes a control groove formed on the lower surface of the projector body and a first electric push rod fixedly connected to the inner wall of the control groove. A collar is fixedly connected to the inner wall of the control groove on the side away from the first electric push rod. One end of the telescopic shaft of the first electric push rod is fixedly connected with a clamping block. One side of the clamping block is clamped and connected with a control rod, and one side of the control rod away from the first electric push rod is fixedly connected with a first threaded rod;

[0010] Pushing and lifting unit, which includes a support rod fixedly connected to the inner wall of the control groove and a sealing plate clamped and connected to the lower surface of the projector body. A bottom plate is clamped and connected to the lower surface of the projector body. Symmetrically distributed moving grooves are formed in the sealing plate, and symmetrically distributed adjustment grooves are formed in the bottom plate. Both sides of one end of the support rod are rotatably connected with a load-bearing plate through a shaft rod.

[0011] As a preferred scheme of the projector control device for conference equipment described in the present invention, wherein: a control button is arranged on one side of the control board, a display screen is fixedly connected to one side of the control board, and a cover plate is clamped and connected to the upper surface of the projector body.

[0012] As a preferred scheme of the projector control device for conference equipment described in the present invention, wherein: a second threaded rod is rotatably connected in the collar, and the second threaded rod is threadedly connected to the outer surface of the first threaded rod. An L-shaped plate is fixedly connected to the upper surface of the bottom plate. An L-shaped groove is formed in the L-shaped plate, and an L-shaped limiting plate is inserted into the L-shaped groove. One side of the L-shaped limiting plate is clamped and connected with a fixed shaft. One end of the fixed shaft away from the L-shaped plate is rotatably connected with a rotating rod, and a rotating rod is fixedly connected to the outer surface of the rotating rod. A third threaded rod is fixedly connected to the outer surface of the rotating rod.

[0013] As a preferred scheme of the projector control device for conference equipment described in the present invention, wherein: one side of the second threaded rod meshes with one side of the third threaded rod. A belt is rotatably connected to the outer surface of the rotating rod. A support rod is fixedly connected to the upper surface of the bottom plate. A second electric push rod is fixedly connected to one side of the support rod. One end of the second electric push rod away from the support rod is fixedly connected with a connecting plate.

[0014] As a preferred scheme of the projector control device for conference equipment described in the present invention, wherein: a connecting shaft is fixedly connected to one side of the connecting plate. An auxiliary shaft is rotatably connected to the outer surface of the connecting shaft. A belt is rotatably connected to the outer surface of the auxiliary shaft. A roller is rotatably connected to the inner surface of the belt. Both sides of the roller are rotatably connected with a connecting rod, and one end of the connecting rod is fixedly connected to the lower surface of the bottom plate.

[0015] As a preferred solution of the projector control device for conference equipment described in the present invention, wherein: a shaft plate is fixedly connected inside the projector body, a connecting pipe is rotatably connected inside the shaft plate, a third electric push rod is fixedly connected to the lower surface of the connecting pipe, one end of the telescopic shaft of the third electric push rod passes through the moving groove, and one end of the telescopic shaft of the third electric push rod is fixedly connected to a bearing plate.

[0016] As a preferred solution of the projector control device for conference equipment described in the present invention, wherein: a transmission groove is opened on the lower surface of the bottom plate, a rubber pad is fixedly connected to the lower surface of the bearing plate, a rotation groove is opened inside the projector body, a T-shaped rod is rotatably connected to the rotation groove through a shaft rod, a sliding rod is fixedly connected to one end of the T-shaped rod away from the rotation groove, a T-shaped groove is opened inside the bearing plate, and the sliding rod is slidably connected to the T-shaped groove.

[0017] As a preferred solution of the projector control device for conference equipment described in the present invention, wherein: one end of the control rod is rotatably connected to a pulling rod through a connecting shaft, a guiding shaft is fixedly connected to one side of the T-shaped rod, the outer surface of the guiding shaft is rotatably connected to one end of the pulling rod, a rotation groove is opened at one end of the bearing plate, and one end of the support rod is rotatably connected to the rotation groove.

[0018] The beneficial effects of the present invention:

[0019] 1. By using the first electric push rod, the control rod, the first threaded rod, the second threaded rod, the third threaded rod, the belt, the second electric push rod and the roller, the telescopic shaft of the first electric push rod simultaneously pushes the first threaded rod and the control plate, so that the first threaded rod and the control plate drive the second threaded rod and the pulling rod to move respectively. Further, the first threaded rod drives the second threaded rod to rotate, so that the second threaded rod meshes with the third threaded rod, thereby driving the coaxial rotating rod to rotate synchronously, so that the rotating rod drives the belt to rotate on its surface, and then the belt drives the roller to rotate, and the roller can drive the whole device to adjust the position;

[0020] 2. By using the support rod, the bearing plate, the guiding shaft, the pulling rod, the T-shaped rod and the sliding rod, the pulling rod pushed by the control plate moves, and then the pulling rod pushes the stretching rod to slide in the T-shaped groove through the guiding shaft, so that the height of the T-shaped rod extrudes the bearing plate, and under the cooperation of the T-shaped rod and the bearing plate, one side of the projector body is lifted, and thus the lifting height of one side of the device can be quickly adjusted to a certain extent;

[0021] 3. By using the sealing plate, the third electric push rod, the bearing plate and the bottom plate, when one side of the projector body is lifted, the third electric push rod drives the whole bearing plate to descend. Furthermore, by using the rubber pad on the lower surface of the bearing plate, the friction between the device and the desktop is increased when they come into contact, thereby preventing it from sliding during use and affecting the playback effect. Further, by the mutual cooperation of the shaft plate and the connecting pipe, after the rubber pad contacts the ground, it can adapt to the lifting angle of one side of the projector body. Description of the Drawings

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings. Among them:

[0023] Figure 1 It is a schematic diagram of the overall structure of a projector control device for conference equipment proposed by the present invention;

[0024] Figure 2 It is a schematic diagram of the bottom structure of a projector control device for conference equipment proposed by the present invention;

[0025] Figure 3 It is a schematic diagram of the internal structure of the control slot of a projector control device for conference equipment proposed by the present invention;

[0026] Figure 4 It is a schematic diagram of the structure of the pushing and lifting unit of a projector control device for conference equipment proposed by the present invention;

[0027] Figure 5 It is a schematic diagram of the structure of the adjustment control unit of a projector control device for conference equipment proposed by the present invention;

[0028] Figure 6 It is a schematic diagram of the distribution structure of multiple groups of threaded rods of a projector control device for conference equipment proposed by the present invention.

[0029] Description of the drawings: 100, main body unit; 101, projector body; 102, control button; 103, display screen; 104, cover plate; 105, heat dissipation slot; 106, projector lens; 107, control board; 200, adjustment control unit; 201, control slot; 202, first electric push rod; 203, control rod; 204, collar; 205, support rod; 206, L-shaped limit plate; 207, L-shaped plate; 208, engaging block; 209, first threaded rod; 210, second threaded rod; 211, rotating rod; 212, third threaded rod; 213, connecting shaft; 214, second electric push rod; 215, connecting plate; 216, L-shaped slot; 217, auxiliary shaft; 218, belt; 219, fixed shaft; 220, roller; 300, pushing and lifting unit; 301, sealing plate; 302, moving slot; 303, rubber pad; 304, bearing plate; 305, bottom plate; 306, support bar; 307, load-bearing plate; 308, transmission slot; 309, rotating slot; 310, rotating slot; 311, adjustment slot; 312, T-shaped slot; 313, guiding shaft; 314, shaft plate; 315, third electric push rod; 316, pulling rod; 317, T-shaped rod; 318, sliding rod; 319, connecting pipe. Detailed implementation mode

[0030] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the following will describe the detailed implementation mode of the present invention with reference to the drawings of the specification.

[0031] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0032] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure or characteristic that can be included in at least one implementation manner of the present invention. The "in one embodiment" appearing in different places in this specification does not all refer to the same embodiment, nor is it an embodiment that is separately or selectively mutually exclusive with other embodiments.

[0033] Furthermore, the present invention is described in detail with reference to the schematic diagrams. When describing the embodiments of the present invention in detail, for the convenience of explanation, the cross-sectional views showing the device structure will be enlarged locally out of the general proportion, and the schematic diagrams are only examples and should not limit the scope of protection of the present invention herein. In addition, in actual production, three-dimensional spatial dimensions including length, width and depth should be included.

[0034] Embodiment 1:

[0035] Refer to Figure 1 -Figure 6 , as an embodiment of the present invention, provides a projector control device for conference equipment, including a main body unit 100, an adjustment control unit 200, and a pushing and lifting unit 300.

[0036] Among them, the main body unit 100 includes a projector body 101 and a projector lens 106 fixedly connected inside the projector body 101. One side of the projector body 101 is fixedly connected with a control board 107, and heat dissipation slots 105 are opened on both sides of the projector body 101;

[0037] Secondly, the adjustment control unit 200 includes a control slot 201 opened on the lower surface of the projector body 101 and a first electric push rod 202 fixedly connected to the inner wall of the control slot 201. A collar 204 is fixedly connected to the inner wall of the control slot 201 away from the first electric push rod 202. One end of the telescopic shaft of the first electric push rod 202 is fixedly connected with a clamping block 208. One side of the clamping block 208 is clamped and connected with a control rod 203, and a first threaded rod 209 is fixedly connected to the side of the control rod 203 away from the first electric push rod 202;

[0038] Finally, the pushing and lifting unit 300 includes a support rod 306 fixedly connected to the inner wall of the control slot 201 and a sealing plate 301 clamped and connected to the lower surface of the projector body 101. A bottom plate 305 is clamped and connected to the lower surface of the projector body 101. Symmetrically distributed moving slots 302 are opened in the sealing plate 301, and symmetrically distributed adjustment slots 311 are opened in the bottom plate 305. Both sides of one end of the support rod 306 are rotatably connected to a load-bearing plate 307.

[0039] Furthermore, a control button 102 is arranged on one side of the control board 107, a display screen 103 is fixedly connected to one side of the control board 107, and a cover plate 104 is clamped and connected to the upper surface of the projector body 101. Among them, the projector body 101 is operated through the cooperation of the control button 102 and the display screen 103, so that the device can be quickly operated.

[0040] Further, a second threaded rod 210 is rotatably connected inside the collar 204. The second threaded rod 210 is threadedly connected to the outer surface of the first threaded rod 209. The upper surface of the bottom plate 305 is fixedly connected with an L-shaped plate 207. An L-shaped groove 216 is formed inside the L-shaped plate 207. An L-shaped limiting plate 206 is inserted into the L-shaped groove 216. One side of the L-shaped limiting plate 206 is snap-connected with a fixed shaft 219. One end of the fixed shaft 219 away from the L-shaped plate 207 is rotatably connected with a rotating rod 211. And a rotating rod 211 is fixedly connected to the outer surface of the rotating rod 211. A third threaded rod 212 is fixedly connected to the outer surface of the rotating rod 211. Among them, through the sleeved mode of the first threaded rod 209 and the second threaded rod 210, when the first threaded rod 209 is pushed by the first electric push rod 202, the second threaded rod 210 connected through the collar 204 will be driven, so that the second threaded rod 210 will not move along the advancing direction of the first electric push rod 202, so that the second threaded rod 210 can stably mesh with the third threaded rod 212.

[0041] Further, one side of the second threaded rod 210 meshes with one side of the third threaded rod 212. A belt 218 is rotatably connected to the outer surface of the rotating rod 211. The upper surface of the bottom plate 305 is fixedly connected with a support rod 205. One side of the support rod 205 is fixedly connected with a second electric push rod 214. One end of the second electric push rod 214 away from the support rod 205 is fixedly connected with a connecting plate 215. Among them, when the horizontal projection angle of the device needs to be adjusted, the second electric push rod 214 is used to drive the connecting plate 215 to move integrally, so that the auxiliary shaft 217 connected to one side of the connecting plate 215 tightens the belt 218, so that the belt 218 can be fully driven by the rotating rod 211. When the horizontal projection angle of the device does not need to be adjusted, the second electric push rod 214 is used to drive the connecting plate 215 away from the second electric push rod 214, so that a slack is maintained between the auxiliary shaft 217 connected to one side of the connecting plate 215 and the belt 218, so that the belt 218 remains in a slack state on the outer surface of the rotating rod 211, thereby avoiding the roller 220 being driven under the action of the belt 218.

[0042] Further, a connecting shaft 213 is fixedly connected to one side of the connecting plate 215. An auxiliary shaft 217 is rotatably connected to the outer surface of the connecting shaft 213. A belt 218 is rotatably connected to the outer surface of the auxiliary shaft 217. A roller 220 is rotatably connected to the inner surface of the belt 218. Connecting rods are rotatably connected to both sides of the roller 220, and one end of the connecting rod is fixedly connected to the lower surface of the bottom plate 305. Among them, the outer surfaces of the rollers 220 are all made of rubber material to ensure that there is sufficient friction between the rollers 220 and the table during rotation, so that the projector body 101 can be quickly adjusted horizontally, and thus avoid the need for multiple manual adjustments during use, resulting in the device being placed unevenly and affecting the projection effect of the device.

[0043] Working principle: By using the first electric push rod 202, control rod 203, first threaded rod 209, second threaded rod 210, third threaded rod 212, belt 218, second electric push rod 214 and roller 220, the telescopic shaft of the first electric push rod 202 simultaneously pushes the first threaded rod 209 and the control board 107, causing the first threaded rod 209 and the control board 107 to drive the second threaded rod 210 and the pull rod 316 to move respectively. Further, the first threaded rod 209 drives the second threaded rod 210 to rotate, and then the second threaded rod 210 meshes with the third threaded rod 212, so that the third threaded rod 212 drives the coaxial rotating rod 211 to rotate synchronously, so that the rotating rod 211 drives the belt 218 to rotate on its surface, and then the belt 218 drives the roller 220 to rotate, and the roller 220 can drive the whole device to adjust its position;

[0044] By using the support rod 306, load-bearing plate 307, guide shaft 313, pull rod 316, T-shaped rod 317 and sliding rod 318, the pull rod 316 pushed by the control board 107 is moved, and then the pull rod 316 pushes the stretching rod to slide in the T-shaped groove 312 through the guide shaft 313. Further, the height of the T-shaped rod 317 squeezes the load-bearing plate 307, and with the cooperation of the T-shaped rod 317 and the load-bearing plate 307, one side of the projector body 101 is lifted, and thus the lifting height of one side of the device can be quickly adjusted to a certain extent;

[0045] By using the sealing plate 301, third electric push rod 315, bearing plate 304 and bottom plate 305, when one side of the projector body 101 is lifted, the third electric push rod 315 drives the whole bearing plate 304 to descend. Further, by using the rubber pad 303 on the lower surface of the bearing plate 304, the friction between the device and the desktop is increased when they contact, so as to prevent it from sliding during use and affecting the playing effect. Further, with the cooperation of the shaft plate 314 and the connecting pipe 319, after the rubber pad 303 contacts the ground, it can adapt to the lifting angle of one side of the projector body 101.

[0046] Embodiment 2:

[0047] Refer to Figure 5 - Figure 6, the difference compared with the first embodiment is that: a shaft plate 314 is fixedly connected inside the projector body 101, a connecting pipe 319 is rotatably connected inside the shaft plate 314, a third electric push rod 315 is fixedly connected to the lower surface of the connecting pipe 319, one end of the telescopic shaft of the third electric push rod 315 passes through the moving groove 302, and one end of the telescopic shaft of the third electric push rod 315 is fixedly connected to a bearing plate 304. Among them, through the mutual cooperation of the connecting pipe 319 and the shaft plate 314, when the rubber pad 303 on the lower surface of the bearing plate 304 contacts the desktop, the third electric push rod 315 can be tilted according to the lifting height on one side of the projector body 101, so as to improve the support effect of the device to a certain extent.

[0048] Further, a transmission groove 308 is formed on the lower surface of the bottom plate 305, a rubber pad 303 is fixedly connected to the lower surface of the bearing plate 304, a rotating groove 310 is formed inside the projector body 101, a T-shaped rod 317 is rotatably connected to the rotating groove 310 through a shaft rod, a sliding rod 318 is fixedly connected to the end of the T-shaped rod 317 away from the rotating groove 310, a T-shaped groove 312 is formed inside the bearing plate 307, and the sliding rod 318 is slidably connected to the T-shaped groove 312. Among them, the T-shaped rod 317 rotates inside the projector body 101 by using the rotating groove 310, and then the height of the T-shaped rod 317 is used to adjust the tilting height on one side of the projector body 101.

[0049] Further, one end of the control rod 203 is rotatably connected to a pulling rod 316 through an adapter shaft, a guide shaft 313 is fixedly connected to one side of the T-shaped rod 317, the outer surface of the guide shaft 313 is rotatably connected to one end of the pulling rod 316, a rotating groove 309 is formed at one end of the bearing plate 307, and one end of the support rod 306 is rotatably connected to the rotating groove 309. Among them, the pushing direction of the pulling rod 316 is changed through the guide shaft 313, so that the T-shaped rod 317 fully utilizes the bearing plate 307 to lift one side of the projector body 101, and then the projection angle in the vertical direction is adjusted and controlled.

[0050] Working principle: First, start the first electric push rod 202, and its telescopic shaft pushes the control rod 203 and the first threaded rod 209 to move synchronously. Start the first electric push rod 202, and its telescopic shaft pushes the control rod 203 and the first threaded rod 209 to move synchronously. The second threaded rod 210 meshes with the third threaded rod 212, driving the third threaded rod 212 and the coaxial rotating rod 211 to rotate;

[0051] Secondly, the rotating rod 211 transmits the rotational power to the roller 220 through the belt 218 fixed on its surface. The second electric push rod 214 adjusts the position of the auxiliary shaft 217 by pushing the connecting plate 215 to control the tightness of the belt 218: adjustment mode: the second electric push rod 214 extends, the auxiliary shaft 217 tightens the belt 218 to ensure effective transmission of power to the roller 220 and drive the overall horizontal movement of the device; locking mode: the second electric push rod 214 contracts, the belt 218 becomes loose, and the roller 220 stops rotating to prevent misadjustment. The roller 220 is made of rubber material with a high coefficient of friction, providing a stable driving force when rolling on the table to ensure smooth horizontal movement of the projector body 101 without slipping.

[0052] Next, the control rod 203 drives the pulling rod 316 to move through the connecting shaft, driving the guide shaft 313 to slide in the T-shaped groove 312. The guide shaft 313 pushes the T-shaped rod 317 to rotate around the rotating groove 310, causing the sliding rod 318 at the end of the T-shaped rod 317 to displace along the T-shaped groove 312 in the bearing plate 307. The displacement of the sliding rod 318 is converted into a vertical extrusion force on the bearing plate 307, forcing the bearing plate 307 to rotate around the shaft rod of the support rod 306 to raise the height of one side of the projector body 101. The third electric push rod 315 is hinged to the shaft plate 314 through the connecting pipe 319 to adjust the tilt angle of the bearing plate 304 in real time. The rubber pad 303 on the lower surface of the bearing plate 304 contacts the tabletop, preventing the device from sliding by increasing the friction force and adapting to the change of the center of gravity after the projector tilts. The target projection area is set through the control panel 107. The system automatically calculates the requirements for horizontal displacement and vertical tilt angle. The first electric push rod 202 and the second electric push rod 214 cooperate to drive the horizontal movement, while the pulling rod 316 and the third electric push rod 315 are linked to complete the vertical tilt adjustment. After the adjustment is completed, the second electric push rod 214 contracts to make the belt 218 loose, and the roller 220 locks its position. The third electric push rod 315 maintains the pressure on the bearing plate 304 to ensure the stability of the device.

[0053] Finally, if an offset is detected, the system automatically triggers a fine-tuning program. The third electric push rod 315 can independently adjust the extension length and angle of the bearing plate 304 to match the tilt posture of the projector body 101, avoiding stability problems caused by concentrated unilateral pressure. The rotational design of the connecting pipe 319 allows the bearing plate 304 to automatically adjust the grounding angle when tilting, ensuring full contact between the rubber pad 303 and the tabletop and enhancing the anti-slip effect.

[0054] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered by the scope of the claims of the present invention.

Claims

1. A projector control device for conference equipment, characterized in that, The projector control device includes: A main body unit (100), which includes a projector body (101) and a projector lens (106) fixedly connected inside the projector body (101). One side of the projector body (101) is fixedly connected with a control board (107), and heat dissipation slots (105) are opened on both sides of the projector body (101); An adjustment control unit (200), which includes a control slot (201) opened on the lower surface of the projector body (101) and a first electric push rod (202) fixedly connected to the inner wall of the control slot (201). A collar (204) is fixedly connected to the inner wall of the control slot (201) away from the first electric push rod (202). One end of the telescopic shaft of the first electric push rod (202) is fixedly connected with a clamping block (208). One side of the clamping block (208) is clamped and connected with a control rod (203). One side of the control rod (203) away from the first electric push rod (202) is fixedly connected with a first threaded rod (209); A pushing and lifting unit (300), which includes a support rod (306) fixedly connected to the inner wall of the control slot (201) and a sealing plate (301) clamped and connected to the lower surface of the projector body (101). A bottom plate (305) is clamped and connected to the lower surface of the projector body (101). Symmetrically distributed moving slots (302) are opened in the sealing plate (301). Symmetrically distributed adjustment slots (311) are opened in the bottom plate (305). Both sides of one end of the support rod (306) are rotatably connected with a load-bearing plate (307) through a shaft rod.

2. The projector control device for conference equipment according to claim 1, wherein: A control button (102) is arranged on one side of the control board (107). A display screen (103) is fixedly connected to one side of the control board (107). A cover plate (104) is clamped and connected to the upper surface of the projector body (101).

3. The projector control device for conference equipment according to claim 1, characterized in that: A second threaded rod (210) is rotatably connected inside the collar (204). The second threaded rod (210) is threadedly connected to the outer surface of the first threaded rod (209). An L-shaped plate (207) is fixedly connected to the upper surface of the bottom plate (305). An L-shaped slot (216) is opened in the L-shaped plate (207). An L-shaped limiting plate (206) is inserted into the L-shaped slot (216). One side of the L-shaped limiting plate (206) is clamped and connected with a fixed shaft (219). One end of the fixed shaft (219) away from the L-shaped plate (207) is rotatably connected with a rotating rod, and a rotating rod (211) is fixedly connected to the outer surface of the rotating rod. A third threaded rod (212) is fixedly connected to the outer surface of the rotating rod (211).

4. The projector control device for conference equipment according to claim 3, wherein: One side of the second threaded rod (210) is meshed with one side of the third threaded rod (212). A belt (218) is rotatably connected to the outer surface of the rotating rod (211). A support rod (205) is fixedly connected to the upper surface of the bottom plate (305). A second electric push rod (214) is fixedly connected to one side of the support rod (205). One end of the second electric push rod (214) away from the support rod (205) is fixedly connected with a connecting plate (215).

5. The projector control device for conference equipment according to claim 4, wherein: One side of the connecting plate (215) is fixedly connected with a connecting shaft (213). An auxiliary shaft (217) is rotatably connected to the outer surface of the connecting shaft (213). A belt (218) is rotatably connected to the outer surface of the auxiliary shaft (217). A roller (220) is rotatably connected to the inner surface of the belt (218). Both sides of the roller (220) are rotatably connected with connecting rods, and one end of each connecting rod is fixedly connected to the lower surface of the bottom plate (305).

6. The projector control device for conference equipment according to claim 1, wherein: A shaft plate (314) is fixedly connected inside the projector body (101). A connecting pipe (319) is rotatably connected inside the shaft plate (314). A third electric push rod (315) is fixedly connected to the lower surface of the connecting pipe (319). One end of the telescopic shaft of the third electric push rod (315) passes through the moving groove (302). One end of the telescopic shaft of the third electric push rod (315) is fixedly connected with a bearing plate (304).

7. The projector control device for conference equipment according to claim 6, characterized in that: A transmission groove (308) is formed in the lower surface of the bottom plate (305). A rubber pad (303) is fixedly connected to the lower surface of the bearing plate (304). A rotating groove (310) is formed inside the projector body (101). A T-shaped rod (317) is rotatably connected to the rotating groove (310) through a shaft rod. One end of the T-shaped rod (317) far from the rotating groove (310) is fixedly connected with a sliding rod (318). A T-shaped groove (312) is formed inside the bearing plate (307). The sliding rod (318) is slidably connected to the T-shaped groove (312).

8. The projector control device for conference equipment according to claim 7, characterized in that: One end of the control rod (203) is rotatably connected with a pulling rod (316) through a connecting shaft. A guiding shaft (313) is fixedly connected to one side of the T-shaped rod (317). The outer surface of the guiding shaft (313) is rotatably connected to one end of the pulling rod (316). A rotating groove (309) is formed at one end of the bearing plate (307), and one end of the support rod (306) is rotatably connected to the rotating groove (309).

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