Natural science propaganda rack for exhibition hall

Abstract

The utility model relates to the field of propaganda frames, and discloses an exhibition hall natural science propaganda frame which comprises a first supporting frame, a main display frame is hinged to the middle of the top end of the first supporting frame through a damping bearing, a first inner groove is formed in the middle of one side of the first supporting frame in a penetrating mode, and first movable plates are symmetrically and rotationally installed in the middles of the upper end and the lower end of the inner wall of the first inner groove; second movable plates are hinged to the two side portions of the first movable plate, second supporting frames are movably arranged on the side portions of one sides of the outer surfaces of the second movable plates, and second inner grooves are formed in the middles of one sides of the second supporting frames in a penetrating mode. The second supporting frame in movement drives the auxiliary showing stand to be movably unfolded, so that the effect of conveniently adjusting the overall showing range of the main showing stand and the auxiliary showing stand is achieved, the overall showing effect of the main showing stand and the auxiliary showing stand is improved, and the problem that an existing showing stand is limited in showing range is solved; and the overall opening and closing storage effect of the first supporting frame and the second supporting frame is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of display stands, in particular to a natural science display stand for exhibition hall. BACKGROUND

[0002] Natural science is a discipline that studies the natural world and its phenomena, covering multiple fields, including physics, chemistry, biology, earth science, astronomy, etc. The goal of natural science is to understand the laws and principles of the natural world through observation, experiment, and theoretical analysis. A natural science exhibition hall is a space dedicated to displaying and disseminating knowledge of natural science, typically including multiple interactive exhibits and educational materials, aiming to attract the public, especially students, and stimulate their interest in science. A natural science exhibition hall generally displays natural science-related information, educational materials, or exhibits through display stands.

[0003] During use, the display content is usually set on the display stand by pasting and placing, and then the display stand is placed in the exhibition hall for people to appreciate. However, due to the fixed shape and structure of the display stand, the overall display range is limited, which makes the display stand have certain limitations during use. In addition, the fixed shape and structure of the display stand occupy a certain placement space, making it inconvenient to store and place the display stand, and affecting the overall use efficiency of the display stand.

[0004] For the above-mentioned related technology, the inventor believes that the display stand with fixed shape and structure has the defect of limited display range, therefore, a natural science display stand for exhibition hall is proposed to solve the above problems. CONTENT OF THE INVENTION

[0005] In order to solve the problem of limited display range of the display stand with fixed shape and structure, the present application provides a natural science display stand for exhibition hall.

[0006] The natural science display stand for exhibition hall provided by the present application adopts the following technical solution:

[0007] A natural science display stand for exhibition hall, comprising a first support frame, a main display stand is hingedly connected to the top middle part of the first support frame through a damping bearing, a first inner groove is formed through the middle part of one side of the first support frame, a first movable plate is symmetrically and rotatably installed on the inner wall of the first inner groove at the upper and lower ends, a second movable plate is hingedly connected to the both side edges of the first movable plate, a second support frame is movably arranged on the outer surface of one side edge of the second movable plate, a second inner groove is formed through the middle part of one side of the second support frame, a secondary display stand is hingedly connected to the top middle part of the second inner groove through a damping bearing, a placing groove is formed in the top middle part of the main display stand and the secondary display stand, a display object is installed in the placing groove, a limiting mechanism is further arranged on the upper surface of the first support frame for fixing the first support frame and the second support frame relative to each other.

[0008] Preferably, the limiting mechanism comprises a fixed rod fixedly installed at the front and rear end edges of the upper surface of the first support frame, a spring sleeved on one side of the outer surface of the fixed rod, and a limiting plate movably installed below the outer surface of the fixed rod, limiting holes being formed through the two side edges of the limiting plate, and limiting columns being welded to the upper surface of the second support frame at the front and rear end edges.

[0009] Preferably, a limiting protrusion is fixedly installed at one side edge of the second movable plate, guide sliding grooves are formed in the upper and lower ends of the inner wall of the second inner groove, the upper and lower end edges of the limiting protrusion are located inside the guide sliding grooves, and the limiting protrusion and the guide sliding grooves are mutually embedded.

[0010] Preferably, first magnetic plates are fixedly connected to the two side edges of the main display stand, second magnetic plates are fixedly connected to the two side edges of the auxiliary display stand, and the first magnetic plates and the second magnetic plates are mutually magnetically attracted.

[0011] Preferably, the outer diameter of the limiting column is smaller than the inner diameter of the limiting hole, one side of the outer surface of the limiting column is located inside the limiting hole, and the limiting hole and the limiting column are mutually clamped.

[0012] To sum up, the present application has the following beneficial technical effects:

[0013] By pulling the second support frame to adjust the rotation of the plurality of first movable plates and second movable plates, the first support frame and the second support frame drive the main display stand and the auxiliary display stand to unfold, respectively, and the rotation of the main display stand and the auxiliary display stand makes them flush with each other, so that the first magnetic plates and the second magnetic plates are mutually attracted, and the display objects are placed in the placing grooves for display. Compared with the prior art, the present application has the effect of facilitating the adjustment of the overall display range of the main display stand and the auxiliary display stand, improves the overall display effect of the main display stand and the auxiliary display stand, solves the problem of limited display range of the existing display stand, and improves the overall opening and closing effect of the first support frame and the second support frame. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a schematic diagram of the overall structure of the application embodiment;

[0015] Figure 2 is a schematic diagram of the limiting plate in the application embodiment;

[0016] Figure 3 is a schematic diagram of the main display stand in the application embodiment;

[0017] Figure 4 is a schematic diagram of the auxiliary display stand in the application embodiment;

[0018] Explanation of reference signs: 1, first support frame; 2, first inner groove; 3, main display frame; 4, first movable plate; 5, second movable plate; 6, limiting protrusion; 7, second support frame; 8, second inner groove; 9, guide sliding groove; 10, auxiliary display frame; 11, placing groove; 12, display object; 13, first magnetic plate; 14, second magnetic plate; 15, fixing rod; 16, spring; 17, limiting plate; 18, limiting hole; 19, limiting column. DETAILED DESCRIPTION

[0019] The following will be described in detail in combination with the accompanying drawings. Figures 1-4 The present application is further described in detail.

[0020] The embodiment of the present application discloses a natural science propaganda frame for exhibition hall. Referring to Figures 1-4 A natural science propaganda frame for exhibition hall, comprising a first support frame 1, a main display frame 3 is hingedly connected to the middle of the top end of the first support frame 1 through a damping bearing, a first inner groove 2 is formed through the middle of one side of the first support frame 1, a first movable plate 4 is symmetrically and rotatably installed on the inner wall of the first inner groove 2 at the middle of the upper end and the lower end, a second movable plate 5 is hingedly connected to the two side edges of the first movable plate 4, a second support frame 7 is movably arranged on one side edge of the outer surface of the second movable plate 5, a second inner groove 8 is formed through the middle of one side of the second support frame 7, a limiting protrusion 6 is fixedly installed on one side edge of the second movable plate 5, a guide sliding groove 9 is formed on the inner wall of the second inner groove 8 at the upper end and the lower end, the upper end and the lower end of the limiting protrusion 6 are located inside the guide sliding groove 9, the limiting protrusion 6 and the guide sliding groove 9 are mutually embedded, an auxiliary display frame 10 is hingedly connected to the middle of the top end of the second inner groove 8 through a damping bearing, a placing groove 11 is formed on the top end of the main display frame 3 and the auxiliary display frame 10, a display object 12 is installed in the placing groove 11, and a limiting mechanism is further arranged on the upper surface of the first support frame 1, which is used for keeping the first support frame 1 and the second support frame 7 fixed.

[0021] By pulling the second support frame 7, the plurality of first movable plates 4 and second movable plates 5 are adjusted to rotate, the second support frame 7 is expanded along the outer surface of the first support frame 1, the first support frame 1 and the second support frame 7 drive the main display frame 3 and the auxiliary display frame 10 to expand respectively, the main display frame 3 and the auxiliary display frame 10 are rotated to be perpendicular to the first support frame 1 and the second support frame 7 and kept flush with each other, the display object 12 is placed in the placing groove 11 for display, and the adjustment effect of the display range of the main display frame 3 and the auxiliary display frame 10 is embodied.

[0022] Referring to Figure 2 and Figure 3The limiting mechanism comprises a fixed rod 15 fixedly installed at the front and rear end edges of the upper surface of the first support frame 1, a spring 16 sleeved on one side of the outer surface of the fixed rod 15, a limiting plate 17 movably installed below the spring 16 on the outer surface of the fixed rod 15, limiting holes 18 formed through the two side edges of the limiting plate 17, limiting columns 19 welded on the upper surface of the second support frame 7 at the front and rear end edges, and the limiting columns 19 having an outer diameter smaller than the inner diameter of the limiting holes 18 and being located inside the limiting holes 18 on one side of the outer surface of the limiting columns 19.

[0023] By moving the first support frame 1 and the second support frame 7 close to each other, the limiting plate 17 is pulled to move upwards along the fixed rod 15, and the limiting plate 17 is clamped on the outer surface of the limiting column 19 under the elastic action of the spring 16, so that the first support frame 1 and the second support frame 7 are fixed to each other by the limiting plate 17 cooperating with the limiting column 19, and the first support frame 1 and the second support frame 7 are stably placed when being stored, thereby realizing the limiting and fixing effect between the first support frame 1 and the second support frame 7.

[0024] With reference to Figure 3 and Figure 4 , the two side edges of the main display stand 3 are fixedly connected with first magnetic plates 13, the two side edges of the auxiliary display stand 10 are fixedly connected with second magnetic plates 14, and the first magnetic plates 13 and the second magnetic plates 14 are magnetically attracted to each other.

[0025] By rotating the main display stand 3 and the auxiliary display stand 10 perpendicular to the first support frame 1 and the second support frame 7 to keep them flush with each other, the first magnetic plates 13 on the outer surface of the main display stand 3 are attracted to the second magnetic plates 14 on the outer surface of the second support frame 7, thereby keeping the two auxiliary display stands 10 and the main display stand 3 fixed to each other, and realizing the connecting effect of the first magnetic plates 13 and the second magnetic plates 14 on the auxiliary display stands 10 and the main display stand 3.

[0026] The implementation principle of the exhibition hall natural science propaganda frame provided by the embodiment of the application is as follows: by pulling the second supporting frame 7 to adjust the rotation of the plurality of first movable plates 4 and the second movable plates 5, the second supporting frame 7 is unfolded along the outer surface of the first supporting frame 1, the first supporting frame 1 and the second supporting frame 7 drive the main display frame 3 and the auxiliary display frame 10 to unfold respectively, the main display frame 3 and the auxiliary display frame 10 are rotated to be perpendicular to the first supporting frame 1 and the second supporting frame 7 and keep flush with each other, the first magnetic plate 13 on the outer surface of the main display frame 3 and the second magnetic plate 14 on the outer surface of the auxiliary display frame 10 are mutually adsorbed, the display object 12 is placed in the placing groove 11 for display, when the first supporting frame 1 and the second supporting frame 7 are wholly stored, the main display frame 3 and the auxiliary display frame 10 are rotated to be flush with the first supporting frame 1 and the second supporting frame 7 respectively, the first movable plates 4 and the second movable plates 5 are rotated to drive the first supporting frame 1 and the second supporting frame 7 to be close to each other, and then the main display frame 3 and the auxiliary display frame 10 are close to each other, the limiting plate 17 is pulled to be unfolded upwards along the fixed rod 15, the limiting plate 17 is clamped on the outer surface of the limiting column 19 under the elastic action of the spring 16, the limiting plate 17 cooperates with the limiting column 19 to fix the first supporting frame 1 and the second supporting frame 7 to each other, and the first supporting frame 1 and the second supporting frame 7 are stably placed when being stored; compared with the prior art, the scheme has the effect that the overall display range of the main display frame 3 and the auxiliary display frame 10 is convenient to adjust, the overall display effect of the main display frame 3 and the auxiliary display frame 10 is improved, the problem that the display range of the existing display frame is limited is solved, and the overall opening and closing storage effect of the first supporting frame 1 and the second supporting frame 7 is improved.

[0027] Finally, it should be pointed out that, in the description of the application, it should be pointed out that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, which can be mechanical connection or electrical connection, or the communication between two elements, or direct connection, "up", "down", "left", "right" and the like are only used to represent the relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may change;

[0028] Secondly: the utility model discloses the embodiment of the drawings only relates to the structure involved in the embodiment of the present disclosure, other structures can refer to the usual design, in the case where there is no conflict, the same embodiment and different embodiments of the utility model can be combined with each other.

[0029] Finally: the preferred embodiments of the utility model are described above only, and are not used to limit the utility model, and any modification, equivalent replacement, improvement and the like made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

[0030] The above are all preferred embodiments of the present application, and do not limit the protection scope of the present application, so that: all equivalent changes made according to the structure, shape, principle of the present application should be covered in the protection scope of the present application.

Claims

1. A natural science information display rack for an exhibition hall, comprising a first support frame (1), wherein a main display frame (3) is hinged to the top center of the first support frame (1) via a damping bearing, characterized in that: The first support frame (1) has a first inner groove (2) through the middle of one side. The first inner groove (2) has a first movable plate (4) symmetrically and rotatably installed at the middle of the upper and lower ends of the inner wall of the first inner groove (2). The first movable plate (4) has a second movable plate (5) hinged to both sides. The second support frame (7) is movably installed on one side of the outer surface of the second movable plate (5). The second support frame (7) has a second inner groove (8) through the middle of one side. The second inner groove (8) has a secondary display frame (10) hinged to the middle of the top of the second inner groove (8) through a damping bearing. The main display frame (3) and the secondary display frame (10) both have a placement groove (11) at the middle of the top. The placement groove (11) is used to install the display item (12). The upper surface of the first support frame (1) is also provided with a limiting mechanism to keep the first support frame (1) and the second support frame (7) fixed to each other.

2. The exhibition hall natural science publicity rack according to claim 1, characterized in that: The limiting mechanism includes a fixed rod (15), which is fixedly installed on the front and rear ends of the upper surface of the first support frame (1). A spring (16) is sleeved on one side of the outer surface of the fixed rod (15). A limiting plate (17) is movably installed on the outer surface of the fixed rod (15) below the spring (16). Limiting holes (18) are opened through the sides of the limiting plate (17). Limiting posts (19) are welded to the front and rear ends of the upper surface of the second support frame (7).

3. The exhibition hall natural science publicity rack according to claim 1, characterized in that: A limiting protrusion (6) is fixedly installed on one side of the second movable plate (5). Guide grooves (9) are provided at both the upper and lower ends of the inner wall of the second inner groove (8). The upper and lower ends of the limiting protrusion (6) are located inside the guide groove (9). The limiting protrusion (6) and the guide groove (9) are interlocked.

4. The exhibition hall natural science publicity rack according to claim 1, characterized in that: The main display rack (3) has a first magnetic plate (13) fixedly connected to both sides, and the secondary display rack (10) has a second magnetic plate (14) fixedly connected to both sides. The first magnetic plate (13) and the second magnetic plate (14) are magnetically attracted to each other.

5. A natural science information display rack for exhibition halls according to claim 2, characterized in that: The outer diameter of the limiting post (19) is smaller than the inner diameter of the limiting hole (18), and one side of the outer surface of the limiting post (19) is located inside the limiting hole (18). The limiting hole (18) and the limiting post (19) are engaged with each other.

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