Management bid inviting projection equipment convenient to disassemble, assemble and carry

Abstract

The utility model discloses management bid inviting projection equipment convenient to disassemble, assemble and carry, the management bid inviting projection equipment comprises a storage box, a fixed frame, a steering gear and a projector main body, a threaded rod is vertically and rotatably connected to the left side of the interior of the storage box, and the threaded rod penetrates through the central edge of the left side of the top end of the fixed frame and is in threaded connection with the fixed frame; the two limiting rods are vertically and fixedly mounted on the front side and the rear side of the inner right portion of the storage box correspondingly, connecting shafts are rotationally connected to the centers of the left inner side wall and the right inner side wall of the fixing frame correspondingly, and the connecting shafts on the left side and the right side are fixedly connected with the centers of the left side wall and the right side wall of the mounting plate correspondingly; a steering gear is fixedly welded on the surface of the right connecting shaft; the vertical angle of the projector is adjusted by arranging the driven gear and the steering gear, so that the projector adapts to curtains at different positions, the projection efficiency is improved, and the practicability is high.

Description

Technical Field

[0001] The present application relates to the technical field of projection equipment, and in particular to a management bidding projection equipment that is easy to disassemble, assemble and carry. Background Art

[0002] In the process of managing bidding work, projection equipment is often needed. Projection equipment can clearly and intuitively display important content such as bidding information, product specifications, technical parameters, etc., to ensure that all personnel involved in the bidding can accurately understand the bidding requirements. Through projection display, communication between the tenderer and the bidder can be strengthened, misunderstandings and ambiguities can be reduced, and the transparency and fairness of the bidding work can be improved. Existing projection equipment is generally not convenient to disassemble and install, and is prone to shaking during the projection process, resulting in unstable images and affecting viewing.

[0003] Application No. 202321185874.X discloses a management bidding projection device that is easy to disassemble and carry, including a protective shell, a linkage plate, an installation and storage component box, an auxiliary lifting component, etc. Through the coordination between synchronous wheels, synchronous belts, installation and storage components and auxiliary lifting components, it solves the problem that the projection equipment currently used on construction sites on the market is composed of a bracket and a projector, and this composition method has a height that cannot be changed according to the scene, which makes it impossible to better display the management bidding information. At the same time, the projection equipment used on the market is spirally connected to the bracket, which means that when installing, not only the corresponding screw holes need to be repeatedly rotated, but also when disassembling, the overall space occupied is large, which is inconvenient to carry and transport, thereby reducing the practicality of the projection equipment.

[0004] However, in use, there are the following defects:

[0005] Although the auxiliary lifting assembly can drive the projector to rise and fall stably, the height of the storage support shell and the support rod is limited and cannot be raised continuously. In addition, in some projection environments with a large number of people, the projection cloth needs to be hung in a higher position to facilitate viewing by people in the back row. At this time, the height of the projector cannot be reached and the angle cannot be adjusted, resulting in the inability to fully display the projected image, affecting the viewing effect. Utility Model Content

[0006] The purpose of the present application is to provide a management bidding projection device which is easy to disassemble, assemble and carry, and solves the problem raised in the background technology that although the auxiliary lifting assembly can drive the projector to be stably lifted and lowered, the height of the storage support shell and the support rod is limited and cannot be raised all the time. In addition, in some projection environments with a large number of people, the projection cloth needs to be hung at a higher position to facilitate viewing by people in the back row. At this time, the height of the projector cannot be reached and the angle cannot be adjusted, resulting in the inability to fully display the projected image, affecting the viewing effect.

[0007] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a management bidding projection device that is easy to disassemble and carry, comprising a storage box, a fixed frame, a steering gear and a projector body, wherein a threaded rod is vertically rotatably connected to the left side of the interior of the storage box, the threaded rod passes through the central edge of the top left side of the fixed frame and is threadedly connected to the fixed frame, and a limit rod is passed through the front and back of the top right side of the fixed frame, and the two limit rods are respectively vertically fixedly installed on the front and back sides of the inner right part of the storage box, the left and right inner side walls of the fixed frame are both rotatably connected with connecting shafts, and the connecting shafts on the left and right sides are respectively fixedly connected to the centers of the left and right side walls of the mounting plate, a steering gear is fixedly welded on the surface of the right connecting shaft, and a driven gear is meshed at the bottom of the steering gear, a crank is fixedly connected to the center of the left side wall of the driven gear, and a support shaft is fixedly connected to the center of the right side wall of the driven gear, and the other end of the support shaft is rotatably connected to the side wall below the support block, and the top of the support block is fixedly connected to the right side edge of the bottom of the fixed frame.

[0008] In this technical solution, since the projector body is always located on the inner side of the storage box, the influence of external dust can be avoided to a great extent, ensuring the cleanliness of the lens. The projector body is installed between the two limit clamps of the mounting plate. The limit clamps can set the spacing by adjusting the position of the slider below, so as to clamp the projector body. It can remain stable during use and ensure the projection effect. When in use, open the box door, and then drive the motor to drive the threaded rod to rotate after power is turned on. The fixed frame will rise and fall on the surface of the threaded rod and the limit rod, and adjust to the appropriate height for projection. The angle of the projector body can be adjusted through the steering gear, driven gear, crank and support shaft. When facing a high or low screen height, hold the crank and start to rotate, driving the driven gear to rotate, so that the steering gear and the connecting shaft are deflected together, and the angle of the mounting plate can be changed, thereby adjusting the up and down direction of the projector body, so that the projector body can meet the projection needs in various situations, and the practicality is improved.

[0009] As an optional solution to the technical solution of the present application, a strip groove is transversely opened on the surface of the mounting plate, and sliders are slidably connected on both sides of the inner side of the strip groove. The top of the slider is fixedly connected to a limiting clamp, and the bottom of the slider is threadedly connected to a fixing bolt.

[0010] As an optional solution of the technical solution of the present application, a limiting bolt is threadedly connected to the surface of the support block on one side of the driven gear, and the other end of the limiting bolt passes through the tooth gap of the driven gear.

[0011] As an optional solution of the technical solution of the present application, a driving motor is fixedly installed on the top of the storage box facing the top of the threaded rod, and the tail end of the bottom transmission shaft of the driving motor is fixedly connected to the top of the threaded rod.

[0012] As an optional solution of the technical solution of the present application, the projector body is movably placed on the surface of the mounting plate, and the lower parts of the left and right side walls of the projector are respectively in contact with the limiting clips on both sides.

[0013] As an optional solution of the technical solution of the present application, a battery is fixedly installed on the inner bottom of the storage box.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The present application can adjust the angle of the projector body through the steering gear, driven gear, crank and support shaft. When facing the situation of high or low screen height, hold the crank and start to rotate, drive the driven gear to rotate, and deflect the steering gear and the connecting shaft together, so that the angle of the mounting plate can be changed, thereby adjusting the up and down direction of the projector body, so that the projector body can meet the projection needs in various situations, and the practicality is improved.

[0016] 2. The present application can increase the stability of the projector body through the limit clamps, sliders and fixing bolts. The projector body is installed between the two limit clamps of the mounting plate. The limit clamps can set the spacing by adjusting the position of the slider below, thereby clamping the projector body. It can remain stable during use, ensuring the projection effect, and can adapt to the installation of various models of projectors, improving the practicality of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0018] Figure 1 For this application, an overall view of a management bidding projection device that is easy to disassemble and carry;

[0019] Figure 2 This is a schematic cross-sectional structure diagram of a management bidding projection device that is easy to disassemble and carry for this application;

[0020] Figure 3 This is a schematic diagram of the structure of the steering gear of a bidding management projection device that is easy to disassemble, assemble and carry.

[0021] In the figure: 1, storage box; 2, box door; 3, limit rod; 4, fixing frame; 5, threaded rod; 501, drive motor; 6, connecting shaft; 7, mounting plate; 8, strip groove; 9, slider; 10, fixing bolt; 11, limit clamp; 12, steering gear; 13, driven gear; 131, support shaft; 14, support block; 15, limit bolt; 16, crank; 17, projector body; 18, battery. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects of the utility model easier to understand, they are further explained below in conjunction with specific implementation methods.

[0023] like Figure 1 As shown, a management bidding projection device that is easy to disassemble and carry includes a storage box 1, a fixing frame 4, a steering gear 12 and a projector body 17. The front opening edge of the storage box 1 is hingedly connected to a box door 2. When in use, you only need to open the box door 2 to start using it.

[0024] like Figure 1 and Figure 2 As shown, a driving motor 501 is fixedly installed on the top of the storage box 1 facing the top of the threaded rod 5 , and the tail end of the bottom transmission shaft of the driving motor 501 is fixedly connected to the top of the threaded rod 5 .

[0025] like Figure 2 As shown, a battery 18 is fixedly installed at the inner bottom of the storage box 1 for supplying power to the drive motor 501 and the projector body 17, and a threaded rod 5 is vertically rotatably connected to the left side of the interior of the storage box 1. The threaded rod 5 passes through the central edge of the top left side of the fixed frame 4 and is threadedly connected to the fixed frame 4, and a limit rod 3 passes through the front and back of the top right side of the fixed frame 4, and the two limit rods 3 are respectively vertically fixed on the front and back sides of the inner right part of the storage box 1. The limit rod 3 can keep the fixed frame 4 stable when moving up and down, and the left and right inner walls of the fixed frame 4 are rotatably connected with a connecting shaft 6, and the connecting shafts 6 on the left and right sides are respectively fixedly connected to the centers of the left and right side walls of the mounting plate 7.

[0026] like Figure 2 and Figure 3 As shown, a strip groove 8 is transversely penetrated on the surface of the mounting plate 7, and sliders 9 are slidably connected to both sides of the inner side of the strip groove 8. The top of the slider 9 is fixedly connected to a limit clamp 11, and the bottom of the slider 9 is threadedly connected to a fixing bolt 10. The projector body 17 is movably placed on the surface of the mounting plate 7, and the lower left and right side walls of the projector are respectively in contact with the limit clamps 11 on both sides. The limit clamps 11 adjust their positions under the drive of the slider 9, thereby clamping the projector body 17, and can adapt to the clamping of various models of projector bodies 17, with high adaptability.

[0027] like Figure 3 As shown, a steering gear 12 is fixedly welded on the surface of the right connecting shaft 6, a driven gear 13 is meshed at the bottom of the steering gear 12, a crank 16 is fixedly connected to the center of the left side wall of the driven gear 13, a support shaft 131 is fixedly connected to the center of the right side wall of the driven gear 13, the other end of the support shaft 131 is rotatably connected to the bottom of the side wall of the support block 14, the top of the support block 14 is fixedly connected to the bottom right edge of the fixed frame 4, and the size of the driven gear 13 is smaller than the steering gear 12, so the rotation speed can be reduced, thereby slowly adjusting the inclination of the mounting plate 7.

[0028] like Figure 3 As shown, the surface of the support block 14 on one side of the driven gear 13 is threadedly connected with a limiting bolt 15, and the other end of the limiting bolt 15 passes through the tooth gap of the driven gear 13. The limiting bolt 15 can clamp the driven gear 13 to prevent it from freely rotating and causing the projector body 17 to be unstable, affecting the projection effect.

[0029] In actual use, the projector body 17 is installed between the two limit clamps 11 of the mounting plate 7. The limit clamps 11 can set the spacing by adjusting the position of the slider 9 below, so as to clamp the projector body 17. It can remain stable during use and ensure the projection effect. When in use, the box door 2 is opened, and then the driving motor 501 drives the threaded rod 5 to rotate after power is turned on. The fixed frame 4 will rise and fall on the surface of the threaded rod 5 and the limit rod 3 and adjust to a suitable height for projection. The angle of the projector body 17 can be adjusted by the steering gear 12, the driven gear 13, the crank 16 and the support shaft 131. When facing a high or low screen height, hold the crank 16 and start rotating to drive the driven gear 13 to rotate, so that the steering gear 12 and the connecting shaft 6 are deflected together, and the angle of the mounting plate 7 can be changed, thereby adjusting the up and down direction of the projector body 17, so that the projector body 17 can meet the projection needs in various situations, and it is highly practical.

Claims

1. A management bidding projection device that is easy to disassemble and carry, comprising a storage box (1), a fixing frame (4), a steering gear (12) and a projector body (17), characterized in that: The left side of the interior of the storage box (1) is vertically rotatably connected to a threaded rod (5), the threaded rod (5) passes through the left central edge of the top of the fixed frame (4) and is threadedly connected to the fixed frame (4), and the front and rear sides of the top right side of the fixed frame (4) are penetrated by a limiting rod (3), and the two limiting rods (3) are respectively vertically fixedly installed on the front and rear sides of the right side of the interior of the storage box (1), and the left and right inner side walls of the fixed frame (4) are rotatably connected to connecting shafts (6), and the connecting shafts (6) on the left and right sides are respectively connected to the left and right sides of the mounting plate (7). The center of the left wall of the driven gear (13) is fixedly connected to the center of the wall, a steering gear (12) is fixedly welded on the surface of the right connecting shaft (6), a driven gear (13) is meshed at the bottom of the steering gear (12), a crank (16) is fixedly connected to the center of the left wall of the driven gear (13), a support shaft (131) is fixedly connected to the center of the right wall of the driven gear (13), the other end of the support shaft (131) is rotatably connected to the bottom of the side wall of the support block (14), and the top of the support block (14) is fixedly connected to the bottom right edge of the fixed frame (4).

2. According to claim 1, the management bidding projection device that is easy to disassemble and carry is characterized by: The surface of the mounting plate (7) is provided with a strip groove (8) extending transversely therethrough, and both sides of the inner side of the strip groove (8) are slidably connected to sliders (9), the top of the slider (9) is fixedly connected to a limit clamp (11), and the bottom of the slider (9) is threadedly connected to a fixing bolt (10).

3. According to claim 1, the management bidding projection device that is easy to disassemble and carry is characterized by: A limit bolt (15) is threadedly connected to the surface of the support block (14) on one side of the driven gear (13), and the other end of the limit bolt (15) passes through the tooth gap of the driven gear (13).

4. The management bidding projection device that is easy to disassemble and carry according to claim 1 is characterized by: A driving motor (501) is fixedly mounted on the top of the storage box (1) facing the top of the threaded rod (5), and the tail end of the bottom transmission shaft of the driving motor (501) is fixedly connected to the top of the threaded rod (5).

5. According to claim 1, the management bidding projection device that is easy to disassemble and carry is characterized by: The projector body (17) is movably placed on the surface of the mounting plate (7), and the lower parts of the left and right side walls of the projector are in contact with the limiting clips (11) on both sides respectively.

6. The management bidding projection device that is easy to disassemble and carry according to claim 1 is characterized by: A battery (18) is fixedly mounted on the inner bottom of the storage box (1).

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