Screen projection device

Abstract

The utility model relates to a device for projection screen, including clamping base, pneumatic connection structure and mounting seat, clamping base and mounting seat through pneumatic connection structure rotatory connection, clamping base includes bottom plate, support plate, vertical splint and transverse splint, support plate is installed bottom plate lower end, vertical splint middle part is equipped with slide groove, and transverse splint middle part is equipped with slide groove. The vertical clamping plates are connected with the bottom plate through bolts, the transverse clamping plates are located in the sliding grooves, the upper ends of the transverse clamping plates protrude out of the upper ends of the vertical clamping plates, the transverse clamping plates are connected with the vertical clamping plates through bolts, and the transverse clamping plates can be close to or away from the supporting plates. The base and the vertical clamping plate can vertically clamp the table top of the conference table, the supporting plate and the transverse clamping plate can transversely clamp a supporting structure at the lower end of the conference table, the stability of the clamped base after installation is guaranteed, and therefore use safety of a projector is guaranteed, multi-angle adjustment is achieved, and use is convenient and fast.

Description

Technical Field

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

[0002] Projectors can project images or videos onto a screen. They are widely used in homes, offices, schools, and entertainment venues, especially in conference rooms, where projectors have almost become standard equipment. In conference rooms, there are basically two types of devices used to fix projectors. One is a ceiling-mounted device, which is expensive, cumbersome to install, and inconvenient to adjust. The other is a desktop-supported device, which is easy to use but not stable enough to install. It is easy to be knocked over and cause damage to the projector. Both devices have their own advantages and disadvantages, but for conference rooms that are frequently used, the projection device must not only meet the requirements of easy installation and use, but also consider the stability of the installation. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a screen projection device which is stable to install and easy to use.

[0004] The technical solution of the utility model is: a device for projection, including a clamping base, a pneumatic connection structure and a mounting seat, the clamping base and the mounting seat are rotatably connected by a pneumatic connection structure, the clamping base includes a bottom plate, a support plate, a vertical clamping plate and a horizontal clamping plate, the support plate is installed at the lower end of the bottom plate, a sliding groove is provided in the middle of the vertical clamping plate, the support plate is slidably connected to the sliding groove, the vertical clamping plate and the bottom plate are connected by bolts, the horizontal clamping plate is located in the sliding groove, the upper end of the horizontal clamping plate protrudes from the upper end of the vertical clamping plate, the horizontal clamping plate and the vertical clamping plate are connected by bolts, and the horizontal clamping plate can be close to or away from the support plate.

[0005] Furthermore, the pneumatic connection structure includes a first connecting member, a support rod, a pneumatic spring and a second connecting member. The lower end of the first connecting member is rotatably connected to the base plate, the support rod and the pneumatic spring are arranged in parallel, the two ends of the support rod and the pneumatic spring are rotatably connected to the first connecting member and the second connecting member respectively, and the upper end of the second connecting member is rotatably connected to the mounting seat.

[0006] Furthermore, the first connecting member and the base plate may be fixedly connected by screws.

[0007] Furthermore, the second connecting member and the mounting seat may be fixedly connected by screws.

[0008] Furthermore, a U-shaped guardrail is provided at the upper end of the mounting seat.

[0009] Furthermore, the mounting seat is provided with a through ventilation slot.

[0010] Furthermore, a fastening plate is provided above the mounting seat, and the fastening plate is connected to the mounting seat by bolts.

[0011] Furthermore, anti-slip pads are provided on the upper ends of the vertical clamping plates and the sides of the horizontal clamping plates facing the support plates.

[0012] Compared with the prior art, the advantages of the utility model are: the base and the vertical clamping plate can vertically clamp the desktop of the conference table, and the support plate and the horizontal clamping plate can horizontally clamp the supporting structure at the lower end of the conference table, ensuring the stability of the clamping base after installation, thereby ensuring the safe use of the projector, and also realizing multi-angle adjustment, which is convenient and quick to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0016] Among them: 1. bottom plate; 2. support plate; 3. vertical clamping plate; 301. sliding groove; 4. horizontal clamping plate; 5. first connecting piece; 6. pneumatic spring; 7. support rod; 8. second connecting piece; 9. mounting seat; 901. ventilation groove; 902. guardrail; 10. fastening plate; 11. anti-slip pattern. DETAILED DESCRIPTION

[0017] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0018] like Figure 1-2As shown, a projection device includes a clamping base, a pneumatic connection structure and a mounting seat 9, wherein the clamping base is rotatably connected to the mounting seat 9 via a pneumatic connection structure, and the clamping base includes a base plate 1, a support plate 2, a vertical clamping plate 3 and a horizontal clamping plate 4, wherein the support plate 2 is mounted at the lower end of the base plate 1, a sliding groove 301 is provided in the middle of the vertical clamping plate 3, the support plate 2 is slidably connected to the sliding groove 301, the vertical clamping plate 3 is connected to the base plate 1 via bolts, the horizontal clamping plate 4 is located in the sliding groove 301, the upper end of the horizontal clamping plate 4 protrudes from the upper end of the vertical clamping plate 3, the horizontal clamping plate 4 is connected to the vertical clamping plate 3 via bolts, and the horizontal clamping plate 4 can be close to or away from the support plate 2; the base and the vertical clamping plate 3 can vertically clamp the desktop of the conference table, the support plate 2 and the horizontal clamping plate 4 can horizontally clamp the supporting structure at the lower end of the conference table, thereby ensuring the stability of the clamping base after installation, thereby ensuring the safe use of the projector. The upper end of the vertical clamping plate 3 and the side of the horizontal clamping plate 4 facing the support plate 2 are both provided with anti-skid pads to further enhance the stability of the clamping base after installation.

[0019] In the above embodiment, the pneumatic connection structure includes a first connection member 5, a support rod 7, a pneumatic spring 6 and a second connection member 8. The lower end of the first connection member 5 is rotatably connected to the bottom plate 1, the support rod 7 is arranged in parallel with the pneumatic spring 6, and the two ends of the support rod 7 and the pneumatic spring 6 are rotatably connected to the first connection member 5 and the second connection member 8 respectively, and the upper end of the second connection member 8 is rotatably connected to the mounting seat 9; wherein, the support rod 7 plays a role in auxiliary force, and the pneumatic spring 6 can maintain the overall shape of the pneumatic connection structure, so that the pneumatic connection structure can be fixed after adjustment, and will not collapse due to the gravity of the mounting seat 9 and the projector on it, and multi-angle adjustment is also achieved, which is convenient and quick to use. The first connection member 5 and the bottom plate 1 can be fixedly connected by screws, and the second connection member 8 and the mounting seat 9 can be fixedly connected by screws. After adjusting to a certain angle, the screws are locked to ensure that the projection process does not shift.

[0020] In the above embodiment, a U-shaped guardrail 902 is provided at the upper end of the mounting seat 9 to provide protection and positioning for the projector, making its installation faster; a through ventilation slot 901 is provided on the mounting seat 9 to assist the projector in heat dissipation and also provide an exhaust channel for the projector with some air outlets at the lower end; a fastening plate 10 is provided above the mounting seat 9, and the fastening plate 10 is connected to the mounting seat 9 by bolts. After the projector is installed, the fastening plate 10 can be used to tighten the projector from top to bottom in conjunction with the bolts to ensure that the projector is firmly installed.

[0021] Description of the working method of this utility model:

[0022] Loosen the screws and bolts at various places of the device, insert the sliding groove 301 of the vertical clamping plate 3 into the support plate 2, so that the bottom plate 1 is against the upper end of the conference table, and the vertical clamping plate 3 is against the lower end of the conference table support structure, and is vertically pre-tightened with bolts, and then the support plate 2 and the horizontal clamping plate 4 are used to clamp the two sides of the conference table support structure together, and the bolts are also used for horizontal pre-tightening. After the final adjustment of the position of the bottom plate 1, the vertical and horizontal bolts are reinforced so that the clamping base of the device is firmly installed on the conference table; install the projector into the mounting seat 9 and press it against the edge of the guardrail 902. After adjusting the position, it is locked by the fastening plate 10 and the bolts, and it can be connected and put into use. During use, it can be rotated through the two ends of the pneumatic connection structure. At the same time, the support rod 7 and the pneumatic spring 6 can cooperate with each other to make the mounting seat 9 achieve the purpose of lifting and lowering, so as to adjust the projection angle, and when the projection angle is optimal, the two ends of the pneumatic connection structure are locked by screws to lock and maintain the optimal projection effect.

[0023] The above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model is described in detail with reference to the above embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the above embodiments, or replace some or all of the technical features therein with equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A screen projection device, comprising a clamping base, a pneumatic connection structure and a mounting seat, characterized in that: The clamping base is rotatably connected to the mounting seat via a pneumatic connection structure, and the clamping base includes a base plate, a support plate, a vertical clamping plate and a transverse clamping plate. The support plate is installed at the lower end of the base plate, a sliding groove is provided in the middle of the vertical clamping plate, the support plate is slidably connected to the sliding groove, the vertical clamping plate is connected to the base plate via bolts, the transverse clamping plate is located in the sliding groove, the upper end of the transverse clamping plate protrudes from the upper end of the vertical clamping plate, the transverse clamping plate is connected to the vertical clamping plate via bolts, and the transverse clamping plate can be close to or away from the support plate.

2. The screen projection device according to claim 1, characterized in that: The pneumatic connection structure includes a first connecting member, a support rod, a pneumatic spring and a second connecting member. The lower end of the first connecting member is rotatably connected to the base plate, the support rod and the pneumatic spring are arranged in parallel, the two ends of the support rod and the pneumatic spring are rotatably connected to the first connecting member and the second connecting member respectively, and the upper end of the second connecting member is rotatably connected to the mounting seat.

3. The screen projection device according to claim 2, characterized in that: The first connecting member and the bottom plate can be fixedly connected by screws.

4. The screen projection device according to claim 2, characterized in that: The second connecting member and the mounting seat can be fixedly connected by screws.

5. The screen projection device according to claim 1, characterized in that: A U-shaped guardrail is arranged on the upper end of the mounting seat.

6. The screen projection device according to claim 1, characterized in that: The mounting seat is provided with a through ventilation slot.

7. The screen projection device according to claim 1, characterized in that: A fastening plate is provided above the mounting seat, and the fastening plate is connected to the mounting seat by bolts.

8. The screen projection device according to claim 1, characterized in that: The upper ends of the vertical clamping plates and the sides of the horizontal clamping plates facing the support plates are both provided with anti-slip pads.

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