Multifunctional law case display device

Abstract

The invention relates to the technical field of display devices, and particularly discloses a multifunctional law case display device which comprises a bearing mechanism and a display mechanism, the bearing mechanism comprises an upper mounting bin, a lower mounting bin and a display frame plate, and the upper mounting bin and the lower mounting bin are fixedly mounted at the upper end and the lower end of the display frame plate respectively; the display mechanism comprises a first hinge seat arranged on the display frame plate, a turnover plate is hinged in the first hinge seat, and one end of the turnover plate is fixedly connected with an external frame plate; according to the device, the display frame plate with the external frame plate is arranged, when law cases are displayed, an adjusting sliding block can be slowly pulled downwards, a shielding cloth face is driven to contract downwards, then case content can be displayed, at the moment, a preaching person can interact with audiences in a question and answer mode, the audiences can continuously answer anticipated answers, and the law case display efficiency is improved. And then the shielding cloth cover is pulled to expose the correct answers, so that the impression of audiences on the correct answers and the understanding of related knowledge are deepened, and the teaching effect is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of display devices, and in particular relates to a multifunctional legal case display device. Background Art

[0002] Jurisprudence, also known as legal studies or legal science, is a science that studies law, legal phenomena and their regularities. It is a specialized discipline that studies issues related to law and a knowledge and theoretical system about legal issues. As a mandatory social norm, the direct purpose of law is to maintain social order and achieve social justice through the construction and maintenance of order. As a discipline that studies law, its core lies in the study of order and justice. It is the study of order and justice. In the process of teaching law, it is necessary to use display devices to display legal cases. Display devices in teaching refer to tools and equipment used to display, demonstrate or assist teaching content in the teaching process. These devices help teachers convey information more intuitively and improve students' understanding and interest, and are often used in the teaching of various subjects. Different teaching objectives and contents will select different types of display devices. Legal publicity display devices can enhance the public's knowledge and understanding of laws and regulations. They can display static images, animations, videos, text, sounds and other forms of content. They can interact with the Internet, social media, mobile devices, etc., and have the effect of widely disseminating legal knowledge and attracting more audiences. When conducting legal presentations and teaching activities, they need to be explained with cases with pictures and texts to facilitate the audience to have a deeper understanding of legal provisions.

[0003] A legal case display device proposed in the patent with the announcement number CN 110782746 A relates to the technical field of legal auxiliary tools, including a lifting and limiting cylinder vertically fixed on a support plate, the lifting and limiting cylinder is connected to a column through a lifting mechanism, a storage box is rotatably installed on the column, a plurality of display boards are slidably installed in the storage box, a display hole corresponding to the display board is opened on the storage box, a propulsion mechanism for pushing the display board is provided in the storage box, and a steering mechanism for driving the angle adjustment is provided at the bottom of the storage box; the present invention can place multiple display boards in the storage box, each display board can be posted with legal cases, and the display board can be automatically pushed to one side of the display hole by the provided propulsion mechanism, so as to achieve the effect of automatically replenishing the display board with the next case posted after the previous display board is pulled out after display, so as to realize the display of multiple legal cases and greatly improve the display efficiency;

[0004] When presenting legal cases, the case body and the corresponding legal provisions are usually presented to the audience together. However, this method of directly presenting the full text lacks interaction with the audience, resulting in a weak impression of the audience after the presentation, which affects the teaching effect.

[0005] To this end, those skilled in the art have proposed a multifunctional legal case display device to solve the problems raised by the background technology.

[0006] The above information disclosed in this background technology is only used to increase the understanding of the background technology of the present invention and therefore, it may include information that does not constitute the prior art known to ordinary technicians in this field. Summary of the invention

[0007] The purpose of the present invention is to provide a multifunctional legal case display device to solve the problems raised in the above background technology.

[0008] To achieve the above object, the present invention provides the following technical solutions:

[0009] A multifunctional legal case display device, comprising:

[0010] A bearing mechanism, the bearing mechanism comprises an upper mounting bin, a lower mounting bin and a display frame, the upper mounting bin and the lower mounting bin are respectively fixedly mounted at the upper and lower ends of the display frame, a display slot is provided on the front surface of the display frame, a reeling slot is provided on the upper surface of the display slot, the reeling slot is communicated with the upper mounting bin, a discharge slot is provided on the lower surface of the display slot, the discharge slot is communicated with the lower mounting bin, a sound amplification device is installed on the upper surface of the upper mounting bin, and an adjustment bin is provided on one side of the display frame;

[0011] The display mechanism comprises a first hinge seat arranged on the display frame plate, a flip plate is hinged in the first hinge seat, one end of the flip plate is fixedly connected to an external frame plate, the external frame plate is a rectangular frame structure, both ends of a surface of the external frame plate are fixedly provided with adjustment rail plates, an adjustment slide groove is provided in the adjustment rail plate, the adjustment slide groove passes through the adjustment rail plate, an adjustment slider is provided in the adjustment slide groove, the number of the adjustment slider and the adjustment rail plate are both two, a connecting rod is fixedly connected between the two adjustment sliders, a shielding cloth surface is fixedly connected to the connecting rod, and the shielding cloth surface is connected to the adjustment rail plate at one end away from the connecting rod.

[0012] Preferably, the adjusting slider is an I-shaped plate structure, the adjusting slider is slidably matched with the adjusting slide groove, and there is damping between the adjusting slider and the adjusting slide groove.

[0013] Preferably, a positioning assembly is provided at one end of the external frame plate, and the number of the positioning assemblies is two. The positioning assembly includes an inner groove and a positioning slide groove opened on the external frame plate, an extrusion spring is fixedly connected inside the inner groove, and a positioning column is fixedly connected to one end of the extrusion spring, and the positioning column is slidably matched with the inner groove.

[0014] Preferably, a positioning block is provided in the positioning slot, the positioning block is slidably matched with the positioning column and the positioning slot, and the positioning block passes through the positioning slot and is connected with the positioning column.

[0015] Preferably, a bottom plate is fixedly connected to one surface of the display frame plate, a positioning hole is provided on the upper surface of the bottom plate, and the shape and position of the positioning column are adapted to the positioning hole.

[0016] Preferably, a first roller and a second roller are provided in the adjustment bin, a first winding shaft is installed in the upper installation bin, a second winding shaft is provided in the lower installation bin, the first roller is connected to the first winding shaft, and the second roller is connected to the second winding shaft.

[0017] Preferably, the peripheral sides of the first roller and the second roller are both connected with belts in a transmission manner, and one end of the second roller is fixedly connected with a first rocker.

[0018] Preferably, a lifting rail plate is fixedly installed on the rear surface of the display frame plate, a groove is opened on one surface of the lifting rail plate, a lifting slider and a threaded rod are arranged inside the groove, the lifting slider is slidably matched with the groove, the threaded rod is threadedly matched with the lifting slider, one end of the threaded rod is connected to a second rocker arm, an extension plate is fixedly arranged on the lifting slider, both ends of the extension plate are fixedly connected to columns, and the lower surface of the column is fixedly connected to a support frame.

[0019] Preferably, a plurality of pulley grooves are provided on the lower surface of the support frame, and movable wheels are provided inside the pulley grooves.

[0020] Preferably, a second hinge seat is installed on both the display frame plate and the adjustment chamber, and a light shielding plate is hinged inside the second hinge seat.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] (1) The present invention provides a display frame with an external frame. When presenting a legal case, the positioning block can be pushed upward to retract the positioning column into the inner groove. The external frame is then rotated by the first hinge seat so that the external frame fits the display frame. The positioning block is then released. The positioning column can be pushed outward from the inner groove under the action of the extrusion spring, so that the positioning column is plugged into the positioning hole, thereby fixing the external frame on the display frame. In the initial state, the shielding cloth can completely cover the display slot. When it is necessary to present and explain the legal case, the adjusting slider can be slowly pulled downward to drive the shielding cloth to retract downward, thereby displaying the case content. At this time, the lecturer can interact with the audience in the form of questions and answers, allowing the audience to continuously answer the expected answers, and then pull the shielding cloth to reveal the correct answer, thereby deepening the audience's impression of the correct answer and improving the teaching effect.

[0023] (2) The present invention is provided with an adjustment bin having a first roller and a second roller, and an upper mounting bin and a lower mounting bin having a first winding shaft and a second winding shaft. When the device is used to display legal cases, a poster paper with case graphic information can be wound on the first winding shaft. When it is necessary to switch the display screen, the first rocker can be manually rotated to drive the second roller to rotate. At this time, the second roller can drive the first roller to rotate via a belt. At this time, the second winding shaft can pull the poster paper on the first winding shaft downward until the next screen completely covers the display slot, thereby displaying multiple legal cases at one time. The adjustment is convenient and quick. By setting a lifting rail plate with a slot and a lifting slider, when the display height needs to be adjusted, the second rocker can be rotated to drive the threaded rod to cooperate with the lifting slider thread, so that the lifting slider slides on the slot. Since the lifting slider is connected to the support frame, the lifting rail plate can drive the entire display frame plate to move longitudinally, thereby realizing the adjustment of the display height. At the same time, the device is equipped with movable light blocking plates on both sides of the display frame plate. The light blocking plates can be rotated according to the angle of exposure of outdoor light to block external light and prevent reflection from affecting the display effect.

[0024] The above summary is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the present invention will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a front perspective structural schematic diagram of the present invention;

[0026] Figure 2 This is a schematic diagram of the internal structure of the regulating chamber of the present invention;

[0027] Figure 3 It is a schematic diagram of the specific structure of the external frame plate of the present invention;

[0028] Figure 4 It is a rear-view stereoscopic structural schematic diagram of the present invention;

[0029] Figure 5 It is a schematic diagram of the specific structure of the positioning component of the present invention;

[0030] Figure 6 It is a schematic diagram of the three-dimensional structure when viewed from above of the present invention.

[0031] In the figure: 1, upper installation bin; 2, lower installation bin; 3, display frame; 4, first hinge seat; 5, flip plate; 6, display slot; 7, rewinding slot; 8, discharge slot; 9, second hinge seat; 10, light shield; 11, sound amplification device; 12, adjustment bin; 13, bottom plate; 14, positioning hole; 15, positioning assembly; 16, external frame; 17, support frame; 18, first winding shaft; 19, second winding shaft; 20, first roller; 21, second roller Roller; 22, belt; 23, first rocker; 24, adjusting rail; 25, adjusting slide; 26, adjusting slider; 27, connecting rod; 28, shielding cloth; 29, inner groove; 30, extrusion spring; 31, positioning column; 32, positioning slide; 33, positioning block; 34, lifting rail; 35, slotting; 36, threaded rod; 37, second rocker; 38, lifting slider; 39, extension plate; 40, column; 41, pulley groove; 42, moving wheel. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Embodiment 1:

[0034] See also Figure 1-Figure 6 As shown, a multifunctional legal case display device includes:

[0035] The bearing mechanism includes an upper mounting bin 1, a lower mounting bin 2 and a display frame 3. The upper mounting bin 1 and the lower mounting bin 2 are fixedly mounted at the upper and lower ends of the display frame 3, respectively. A display slot 6 is provided on the front surface of the display frame 3. A reeling slot 7 is provided on the upper surface of the display slot 6. The reeling slot 7 is connected to the upper mounting bin 1. A discharge slot 8 is provided on the lower surface of the display slot 6. The discharge slot 8 is connected to the lower mounting bin 2. A sound amplification device 11 is installed on the upper surface of the upper mounting bin 1. An adjustment bin 12 is provided on one side of the display frame 3.

[0036] The display mechanism includes a first hinge seat 4 arranged on the display frame plate 3, a flip plate 5 is hinged in the first hinge seat 4, one end of the flip plate 5 is fixedly connected to an external frame plate 16, the external frame plate 16 is a rectangular frame structure, and both ends of a surface of the external frame plate 16 are fixedly provided with an adjustment rail plate 24, an adjustment slide groove 25 is opened in the adjustment rail plate 24, the adjustment slide groove 25 runs through the adjustment rail plate 24, an adjustment slider 26 is arranged in the adjustment slide groove 25, the number of the adjustment slider 26 and the adjustment rail plate 24 are both two, a connecting rod 27 is fixedly connected between the two adjustment sliders 26, a shielding cloth surface 28 is fixedly connected to the connecting rod 27, and the shielding cloth surface 28 is connected to the adjustment rail plate 24 at one end away from the connecting rod 27.

[0037] Specifically, the adjusting slider 26 is an I-shaped plate structure, the adjusting slider 26 and the adjusting slide groove 25 are slidably matched, and there is damping between the adjusting slider 26 and the adjusting slide groove 25 .

[0038] Specifically, a positioning assembly 15 is provided at one end of the external frame plate 16, and the number of the positioning assemblies 15 is two. The positioning assembly 15 includes an inner groove 29 and a positioning slide groove 32 opened on the external frame plate 16. An extrusion spring 30 is fixedly connected inside the inner groove 29, and a positioning column 31 is fixedly connected to one end of the extrusion spring 30. The positioning column 31 is slidably matched with the inner groove 29.

[0039] As can be seen from the above, the device is provided with a display frame 3 with an external frame 16. When displaying a legal case, the positioning block 33 can be pushed upward to retract the positioning column 31 into the inner groove 29, and then the external frame 16 is rotated by the first hinge seat 4 so that the external frame 16 fits the display frame 3. At this time, the positioning block 33 is released, and the positioning column 31 can be pushed outward from the inner groove 29 under the action of the extrusion spring 30, so that the positioning column 31 is plugged into the positioning hole 14, so that the external frame 16 can be fixed. Fixed on the display frame 3, the shielding cloth 28 can completely cover the display slot 6 in the initial state. When it is necessary to display and explain the legal case, the adjusting slider 26 can be slowly pulled downward to drive the shielding cloth 28 to shrink downward, so that the case content can be displayed. At this time, the lecturer can interact with the audience in the form of questions and answers, allowing the audience to continuously answer the expected answers, and then pull the shielding cloth 28 to make the correct answer appear, thereby deepening the audience's impression of the correct answer and improving the teaching effect.

[0040] Embodiment 2:

[0041] The bearing mechanism includes an upper mounting bin 1, a lower mounting bin 2 and a display frame 3. The upper mounting bin 1 and the lower mounting bin 2 are fixedly mounted at the upper and lower ends of the display frame 3 respectively. A display slot 6 is provided on the front surface of the display frame 3. A reeling slot 7 is provided on the upper surface of the display slot 6. The reeling slot 7 is connected to the upper mounting bin 1. A discharge slot 8 is provided on the lower surface of the display slot 6. The discharge slot 8 is connected to the lower mounting bin 2. A sound amplification device 11 is installed on the upper surface of the upper mounting bin 1. An adjustment bin 12 is provided on one side of the display frame 3. The lecturer explains the case on the publicity screen through the microphone worn by the lecturer, and amplifies the sound through the sound amplification device 11, so that more people can hear the lecture content.

[0042] The display mechanism includes a first hinge seat 4 arranged on the display frame plate 3, a flip plate 5 is hinged in the first hinge seat 4, one end of the flip plate 5 is fixedly connected to an external frame plate 16, the external frame plate 16 is a rectangular frame structure, and both ends of a surface of the external frame plate 16 are fixedly provided with an adjustment rail plate 24, an adjustment slide groove 25 is opened in the adjustment rail plate 24, the adjustment slide groove 25 runs through the adjustment rail plate 24, an adjustment slider 26 is arranged in the adjustment slide groove 25, the number of the adjustment slider 26 and the adjustment rail plate 24 are both two, a connecting rod 27 is fixedly connected between the two adjustment sliders 26, a shielding cloth surface 28 is fixedly connected to the connecting rod 27, and the shielding cloth surface 28 is connected to the adjustment rail plate 24 at one end away from the connecting rod 27.

[0043] See also Figure 1-Figure 6 As shown, a positioning block 33 is disposed in the positioning slot 32 , and the positioning block 33 slidably cooperates with the positioning column 31 and the positioning slot 32 , and the positioning block 33 passes through the positioning slot 32 and is connected to the positioning column 31 .

[0044] Specifically, a bottom plate 13 is fixedly connected to one surface of the display frame plate 3 , a positioning hole 14 is opened on the upper surface of the bottom plate 13 , and the shape and position of the positioning column 31 are adapted to the positioning hole 14 .

[0045] Specifically, a first roller 20 and a second roller 21 are provided in the adjustment bin 12, a first winding shaft 18 is installed in the upper installation bin 1, and a second winding shaft 19 is provided in the lower installation bin 2. The first roller 20 is connected to the first winding shaft 18, and the second roller 21 is connected to the second winding shaft 19.

[0046] Specifically, the first roller 20 and the second roller 21 are both connected to the belt 22 on their circumferential sides, and one end of the second roller 21 is fixedly connected to the first rocker 23 .

[0047] As can be seen from the above, the device is provided with an adjustment bin 12 with a first roller 20 and a second roller 21, and an upper mounting bin 1 and a lower mounting bin 2 with a first winding shaft 18 and a second winding shaft 19. When the device is used for legal case display, the poster paper with case graphic information can be wound on the first winding shaft 18. When it is necessary to switch the display screen, the first rocker 23 can be manually rotated to drive the second roller 21 to rotate. At this time, the second roller 21 can drive the first roller 20 to rotate through the belt 22. At this time, the second winding shaft 19 can pull the promotional paper on the first winding shaft 18 downward until the next screen completely covers the display slot 6. In this way, multiple legal cases can be displayed at one time, and the adjustment is convenient and quick.

[0048] Embodiment three:

[0049] See also Figure 1-Figure 6 As shown, a lifting rail plate 34 is fixedly installed on the rear surface of the display frame plate 3, a groove 35 is opened on one surface of the lifting rail plate 34, a lifting slider 38 and a threaded rod 36 are arranged inside the groove 35, the lifting slider 38 is slidably matched with the groove 35, the threaded rod 36 is threadedly matched with the lifting slider 38, one end of the threaded rod 36 is connected to a second rocker 37, an extension plate 39 is fixedly arranged on the lifting slider 38, both ends of the extension plate 39 are fixedly connected to columns 40, and the lower surface of the column 40 is fixedly connected to the support frame 17.

[0050] Specifically, a plurality of pulley grooves 41 are formed on the lower surface of the support frame 17 , and moving wheels 42 are disposed inside the pulley grooves 41 .

[0051] Specifically, the display frame 3 and the adjustment chamber 12 are both equipped with a second hinge seat 9 , and a light shielding plate 10 is hingedly connected inside the second hinge seat 9 .

[0052] As can be seen from the above, the device is provided with a lifting rail plate 34 with a slot 35 and a lifting slider 38. When the display height needs to be adjusted, the second rocker 37 can be rotated to drive the threaded rod 36 to engage with the lifting slider 38 threadably, so that the lifting slider 38 slides on the slot 35. Since the lifting slider 38 is connected to the support frame 17, the lifting rail plate 34 can drive the entire display frame plate 3 to move longitudinally, thereby realizing the adjustment of the display height. At the same time, the device is installed with movable light blocking plates 10 on both sides of the display frame plate 3. The light blocking plates 10 can be rotated according to the angle of exposure of outdoor light, so that the external light can be blocked to prevent the reflection phenomenon from affecting the display effect.

[0053] The standard parts used in the present invention can all be purchased from the market, and the special-shaped parts can be customized according to the description and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0054] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. "Multiple" means two or more, unless otherwise clearly and specifically defined.

[0055] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0056] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0057] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0058] In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other.

[0059] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multifunctional legal case display device, characterized in that: include: A bearing mechanism, the bearing mechanism comprising an upper mounting bin (1), a lower mounting bin (2) and a display frame plate (3), the upper mounting bin (1) and the lower mounting bin (2) being fixedly mounted at the upper and lower ends of the display frame plate (3), respectively; a display slot (6) is provided on the front surface of the display frame plate (3), a retracting slot (7) is provided on the upper surface of the display slot (6), the retracting slot (7) is connected to the upper mounting bin (1), a discharge slot (8) is provided on the lower surface of the display slot (6), the discharge slot (8) is connected to the lower mounting bin (2), a sound amplification device (11) is installed on the upper surface of the upper mounting bin (1), and an adjustment bin (12) is provided on one side of the display frame plate (3); A display mechanism, the display mechanism comprising a first hinge seat (4) arranged on a display frame plate (3), a flip plate (5) being hingedly connected inside the first hinge seat (4), one end of the flip plate (5) being fixedly connected to an external frame plate (16), the external frame plate (16) being a rectangular frame structure, an adjustment rail plate (24) being fixedly arranged at both ends of one surface of the external frame plate (16), an adjustment slot (25) being arranged inside the adjustment rail plate (24), the adjustment slot (25) penetrating the adjustment rail plate (24), an adjustment slider (26) being arranged inside the adjustment slot (25), the number of the adjustment sliders (26) and the number of the adjustment rail plate (24) being two, a connecting rod (27) being fixedly connected between the two adjustment sliders (26), a shielding cloth surface (28) being fixedly connected to the connecting rod (27), and the shielding cloth surface (28) being connected to the adjustment rail plate (24) at one end away from the connecting rod (27).

2. A multifunctional legal case display device according to claim 1, characterized in that: The adjusting slider (26) is an I-shaped plate structure, the adjusting slider (26) is slidably matched with the adjusting slide groove (25), and there is damping between the adjusting slider (26) and the adjusting slide groove (25).

3. A multifunctional legal case display device according to claim 1, characterized in that: A positioning assembly (15) is provided at one end of the external frame plate (16), the number of the positioning assemblies (15) is two, the positioning assembly (15) comprises an inner groove (29) and a positioning slide groove (32) provided on the external frame plate (16), a compression spring (30) is fixedly connected inside the inner groove (29), a positioning column (31) is fixedly connected to one end of the compression spring (30), and the positioning column (31) is slidably matched with the inner groove (29).

4. A multifunctional legal case display device according to claim 3, characterized in that: A positioning block (33) is arranged in the positioning slot (32), and the positioning block (33) is slidably matched with the positioning column (31) and the positioning slot (32), and the positioning block (33) passes through the positioning slot (32) and is connected with the positioning column (31).

5. A multifunctional legal case display device according to claim 4, characterized in that: A bottom plate (13) is fixedly connected to one surface of the display frame plate (3), a positioning hole (14) is provided on the upper surface of the bottom plate (13), and the shape and position of the positioning column (31) are adapted to the positioning hole (14).

6. A multifunctional legal case display device according to claim 1, characterized in that: A first rotating roller (20) and a second rotating roller (21) are arranged in the regulating bin (12); a first winding shaft (18) is arranged in the upper mounting bin (1); a second winding shaft (19) is arranged in the lower mounting bin (2); the first rotating roller (20) is connected to the first winding shaft (18), and the second rotating roller (21) is connected to the second winding shaft (19).

7. A multifunctional legal case display device according to claim 6, characterized in that: The peripheral sides of the first rotating roller (20) and the second rotating roller (21) are both drivingly connected to belts (22), and one end of the second rotating roller (21) is fixedly connected to a first rocker (23).

8. The multifunctional legal case display device according to claim 1 is characterized in that: A lifting rail plate (34) is fixedly mounted on the rear surface of the display frame plate (3); a groove (35) is formed on one surface of the lifting rail plate (34); a lifting slider (38) and a threaded rod (36) are arranged inside the groove (35); the lifting slider (38) is slidably matched with the groove (35); the threaded rod (36) is threadedly matched with the lifting slider (38); one end of the threaded rod (36) is connected to a second rocker (37); an extension plate (39) is fixedly arranged on the lifting slider (38); both ends of the extension plate (39) are fixedly connected to columns (40); and a support frame (17) is fixedly connected to the lower surface of the column (40).

9. A multifunctional legal case display device according to claim 8, characterized in that: A plurality of pulley grooves (41) are provided on the lower surface of the support frame (17), and moving wheels (42) are arranged inside the pulley grooves (41).

10. The multifunctional legal case display device according to claim 1, characterized in that: A second hinge seat (9) is installed on both the display frame plate (3) and the adjustment chamber (12), and a light shielding plate (10) is hingedly connected inside the second hinge seat (9).

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