Adjustable display rack for exhibition building

Abstract

The utility model discloses an adjustable display rack for exhibition building, and relates to the technical field of exhibition building. The lighting device comprises a frame, a supporting assembly is arranged below the frame, and a lighting assembly is further arranged above the frame. Mounting columns in the supporting assembly are fixedly connected to the two sides of the bottom of the frame correspondingly, a bottom plate is fixedly connected to the bottom ends of the mounting columns, rotating blocks are rotationally connected to the front end and the rear end of the outer wall of one side of the bottom plate correspondingly, and pulleys are fixedly connected to the bottoms of the rotating blocks. A rotating rod and a transmission rod in the supporting assembly drive a rotating block to rotate, a supporting block at the top of the rotating block is supported on the ground, the problem that existing supporting stability is poor is solved, an LED lamp is driven to move horizontally through a lead screw and a sliding block in the lighting assembly, the LED lamp is driven to rotate through a mounting plate, and the supporting stability is improved. The display content in the display rack is subjected to auxiliary illumination through the LED lamps, and the problem that an existing display rack is not convenient to use in dark places is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of exhibition construction, in particular to an adjustable exhibition frame for exhibition construction. Background Art

[0002] Exhibitions are a kind of publicity activities to showcase products and technologies, expand channels, promote sales and spread brands. In the process of setting up exhibitions, a large number of equipment and instruments will be used. Among them, exhibition stands are one of the most common equipment in the process of setting up exhibitions. Exhibition stands are also called product display stands, promotion stands, portable exhibition equipment and information stands. They are the main equipment used to display products and technologies and spread brands.

[0003] The existing document with publication number CN219872833U discloses an adjustable display rack, including a vertical rod, a horizontal rod and a connecting plate, wherein a horizontal rod is arranged at one end of the vertical rod, and a connecting plate is welded to the lower end of the vertical rod; a first sliding groove is provided inside the vertical rod, and two groups of horizontal rods are slidably arranged inside the first sliding groove, and a second sliding groove is provided inside the horizontal rod, and a sliding rod is slidably arranged in the second sliding groove;

[0004] However, it still has the following disadvantages in actual use:

[0005] 1. The adjustable display rack described above has a connecting plate welded to the lower end of its vertical rod, and the lower end of the connecting plate is rotatably connected to a pulley through two sets of baffles and a rotating shaft, and the pulley is used to drive the display rack to move and support it. However, due to the rolling property of the pulley itself, the overall support stability of the display rack is poor, making it easy for the display rack to shift due to external force;

[0006] 2. The adjustable display rack described above has a horizontal bar at one end of the vertical bar, and a connecting plate is welded at the lower end of the vertical bar, a pulley is installed at the lower end of the connecting plate through a baffle, and an extrusion plug is also installed on the horizontal bar, and the product or brand information is clamped between the vertical bar and the horizontal bar through the extrusion plug to display the product or brand information. However, due to the different light conditions in the exhibition and the lack of auxiliary lighting structure in the above-mentioned display rack, it is not convenient to use in dark places in the exhibition.

[0007] To this end, we provide an adjustable exhibition stand to solve the above problems. Utility Model Content

[0008] The purpose of the utility model is to provide an adjustable exhibition stand for construction, in which a rotating block is driven to rotate by a rotating rod and a transmission rod in a support assembly, so that a support block on the top of the rotating block is supported on the ground, thereby solving the problem of poor stability of the existing support, and the LED lamp is driven to translate by a screw rod and a slider in a lighting assembly, and the LED lamp is driven to rotate by a mounting plate, and the display content in the exhibition stand is supplemented by the LED lamp, thereby solving the problem that the existing display stand is inconvenient to use in dark places.

[0009] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0010] The utility model is an adjustable exhibition stand for exhibition construction, comprising a frame, a supporting assembly is arranged below the frame, and a lighting assembly is arranged above the frame;

[0011] The mounting columns in the support assembly are respectively fixedly connected to the two sides of the bottom of the frame, the bottom ends of the mounting columns are fixedly connected to the bottom plate, the front and rear ends of the outer wall of one side of the bottom plate are rotatably connected to the rotating blocks, the bottom of the rotating block is fixedly connected to the pulley, the top of the rotating block is fixedly connected to the supporting block, the center position of the outer wall of one side of the bottom plate is fixedly connected to the mounting block, the internal movable sleeve of the mounting block is provided with a top rod, the bottom plates are adjacently provided with a rotating rod, and the two ends of the rotating rod are movably connected to the transmission rod;

[0012] The screw rod in the lighting assembly is rotatably connected to the top two sides of the frame in the horizontal direction, and a slider is threadedly sleeved on the outer wall of the screw rod. A second mounting seat is welded on the top two sides of the slider. A mounting plate is rotatably connected between the second mounting seats, and an LED lamp is fixedly connected to the front end of the lower surface of the mounting plate.

[0013] The utility model is further configured as follows: the frame includes L-shaped rods located on the four sides respectively, the vertical arm and the horizontal arm of the L-shaped rod are movably sleeved with an inner rod, the vertical arm and the horizontal arm of the L-shaped rod are threaded with a first positioning bolt, and one end of the first positioning bolt is threadedly connected to the inside of a first positioning hole located on the inner rod.

[0014] The utility model is further configured as follows: fixing components are also provided on both sides of the transverse support arms of the L-shaped rod, the U-shaped frame in the fixing component is clamped on both sides of the transverse support arms of the L-shaped rod, fixing plates are welded on the longitudinal support arms of the U-shaped frame, the front end faces of the fixing plates are magnetically connected to magnets, the interior of the U-shaped frame is movably connected to a splint, the front end faces of the splints are abutted and connected to the rear ends of the transverse support arms of the L-shaped rod, a sleeve rod is passed through the vertical support arms at the rear end of the U-shaped frame, the internal threads of the sleeve rod are connected to a first threaded rod, the front end of the first threaded rod is rotatably connected to the rear end face of the splint, and the rear end of the first threaded rod is fixedly connected to a first knob.

[0015] The utility model is further configured as follows: the interior of the mounting column is vertically movably connected with a lifting column, the top of the lifting column is fixedly connected with a U-shaped plate, the U-shaped plate is respectively clamped on both sides of the bottom of the frame, a second positioning bolt is threadedly penetrated on an outer wall of one side of the mounting column, one end of the second positioning bolt is threadedly connected to the inside of a second positioning hole on the outer wall of one side of the lifting column, tripods are welded on the front and rear end surfaces of the mounting column, and the bottom of the tripod is respectively fixedly connected to the front and rear ends of the upper surface of the base plate.

[0016] The utility model is further configured as follows: a first mounting seat is welded on the front and rear end surfaces of the base plate, a first rotating shaft passes through the outer wall of the first mounting seat along the horizontal rotation, one end of the first rotating shaft is welded to the outer wall of the mounting block on one side close to the base plate, and a double groove wheel is sleeved on the other end of the first rotating shaft and the outer wall of the transmission rod, and the double groove wheels are connected by belt transmission.

[0017] The utility model is further configured as follows: a second threaded rod is vertically rotatably connected inside the mounting block, the upper end of the push rod is threadedly sleeved on the outer wall of the second threaded rod, and bevel gears are sleeved on the outer wall of the second threaded rod and on the end of the transmission rod away from the rotating rod, and the bevel gears are meshedly connected with each other.

[0018] The utility model is further configured as follows: square rods are movably sleeved on both sides of the interior of the rotating rod, one end of the square rod respectively passes through the two ends of the rotating rod and is welded to one end of the transmission rod close to the rotating rod.

[0019] The utility model is further configured as follows: both sides of the top of the frame are fixedly connected with bearing seats, both ends of the screw rod are rotatably connected to the inside of the bearing seat, and one end of the screw rod rotates through the bearing seat and is fixedly connected with a second knob.

[0020] The utility model is further configured as follows: through grooves are opened on the outer walls of the second mounting seat, damping bearings are fixedly connected inside the through grooves, a second rotating shaft is rotatably sleeved inside the damping bearings, and one end of the second rotating shaft away from the damping bearings is respectively welded to the rear ends of the outer walls on both sides of the mounting plate.

[0021] The utility model has the following beneficial effects:

[0022] 1. The utility model sets a support assembly, drives the transmission rod to rotate through the rotating rod, and under the action of the meshing connection between the bevel gears, the bottom end of the top rod moves to the outside of the mounting block, so that the bottom end of the top rod is supported on the ground, and under the action of the transmission connection between the double groove wheel and the belt, the rotating block rotates, so that the pulley is separated from the ground and the support block is supported on the ground, thereby supporting the display frame and avoiding the poor support stability of the display frame caused by the existence of the pulley.

[0023] 2. The utility model sets a lighting assembly, and through the threaded connection between the screw rod and the slider, the slider drives the mounting plate and the LED lamp to move horizontally, and through the rotational connection between the mounting plate and the second mounting seat, drives the LED lamp to rotate. When the LED lamp reaches a specified position, its power is turned on, and the LED lamp is used to assist the display stand in lighting, so that visitors can view the contents displayed on the display stand. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are 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 creative work.

[0025] Figure 1 It is a schematic diagram of the overall structure of an adjustable exhibition stand;

[0026] Figure 2 It is a structural schematic diagram of the framework of the utility model;

[0027] Figure 3 This is a structural disassembly diagram of the fixing assembly of the utility model;

[0028] Figure 4 This is a schematic diagram of the structure of the support assembly of the utility model;

[0029] Figure 5 It is a structural schematic diagram of the installation column of the utility model;

[0030] Figure 6 This is a structural schematic diagram of the rotating block of the utility model;

[0031] Figure 7 It is a partial cross-sectional view of the mounting block of the utility model;

[0032] Figure 8 It is a schematic diagram of the installation between the rotating rod and the transmission rod of the utility model;

[0033] Fig. 9 It is a bottom view of the lighting assembly of the utility model;

[0034] Fig.10 It is a schematic diagram of the installation between the second mounting seat and the mounting plate of the utility model.

[0035] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0036] 1. Frame; 101. L-shaped rod; 102. Inner rod; 103. First positioning bolt; 104. First positioning hole; 2. Fixing assembly; 201. U-shaped frame; 202. Fixing plate; 203. Magnet; 204. Clamp; 205. Sleeve rod; 206. First threaded rod; 207. Second knob; 3. Support assembly; 301. Mounting column; 301a. Lifting column; 301b. U-shaped plate; 301c. Second positioning bolt; 301d. Second positioning hole; 301e. Tripod; 302. Bottom plate; 302a. First mounting seat; 303 , rotating block; 303a, first rotating shaft; 303b, double groove wheel; 303c, belt; 304, mounting block; 304a, second threaded rod; 304b, bevel gear; 305, pulley; 306, support block; 307, push rod; 308, rotating rod; 309, transmission rod; 309a, square rod; 4, lighting assembly; 401, screw rod; 401a, bearing seat; 402, slider; 403, second mounting seat; 403a, through groove; 403b, damping bearing; 404, mounting plate; 404a, second rotating shaft; 405, LED lamp. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Specific embodiment 1

[0039] See also Figure 1-8 As shown, it is the first embodiment of the utility model, which provides an adjustable exhibition stand for construction, including a frame 1 and a support assembly 3, and the support assembly 3 includes a mounting column 301, a rotating block 303, a mounting block 304, a top rod 307 and a transmission rod 309, and the top rod 307 and the mounting block 304 are driven by the transmission rod 309 to move, so that the top rod 307 and the support block 306 on the mounting block 304 are supported on the ground, and the pulley 305 is separated from the ground, which solves the problem of poor support stability in the prior art.

[0040] Specifically, the mounting posts 301 are respectively fixedly connected to both sides of the bottom of the frame 1, the bottom end of the mounting posts 301 is fixedly connected to a bottom plate 302, the front and rear ends of the outer wall of one side of the bottom plate 302 are rotatably connected to a rotating block 303, the bottom of the rotating block 303 is fixedly connected to a pulley 305, the top of the rotating block 303 is fixedly connected to a support block 306, the center position of the outer wall of one side of the bottom plate 302 is fixedly connected to a mounting block 304, the internal movable sleeve of the mounting block 304 is provided with a top rod 307, and a rotating rod 308 is provided between adjacent bottom plates 302. Both ends of the movable rod 308 are movably connected with a transmission rod 309, and the frame 1 is supported by the setting of the mounting column 301 and the base plate 302, and the pulley 305 and the support block 306 are rotatably installed on the base plate 302 through the setting of the rotating block 303, so that the pulley 305 or the support block 306 can be selected to contact the ground according to the movement requirements. The setting of the rotating rod 308 is used to drive the transmission rod 309 to rotate synchronously, and the setting of the transmission rod 309 is used to drive the rotating block 303 to rotate and the top rod 307 to rise and fall.

[0041] Further, the frame 1 includes L-shaped rods 101 respectively located on the four sides, and the vertical arm and the horizontal arm of the L-shaped rod 101 are movably sleeved with an inner rod 102, and the vertical arm and the horizontal arm of the L-shaped rod 101 are threaded with a first positioning bolt 103, and one end of the first positioning bolt 103 is threadedly connected to the inside of a first positioning hole 104 located on the inner rod 102. The setting of the L-shaped rod 101 encloses a closed space for displaying product or brand information, and the setting of the inner rod 102 is used to adjust the spacing between the L-shaped rods 101, so as to facilitate the display of products or brand information of different sizes, and the setting of the first positioning bolt 103 and the first positioning hole 104 is used to position the L-shaped rod 101 and the inner rod 102;

[0042] A fixing assembly 2 is also provided on both sides of the transverse support arm of the L-shaped rod 101. The U-shaped frame 201 in the fixing assembly 2 is clamped on both sides of the transverse support arm of the L-shaped rod 101. A fixing plate 202 is welded on the longitudinal support arm of the U-shaped frame 201. A magnet 203 is magnetically connected to the front end surface of the fixing plate 202. A clamping plate 204 is movably connected to the inside of the U-shaped frame 201. The front end surface of the clamping plate 204 is abutted and connected to the rear end of the transverse support arm of the L-shaped rod 101. A sleeve rod 205 is passed through the vertical support arm at the rear end of the U-shaped frame 201. The internal thread of the sleeve rod 205 is connected to the first threaded rod 206. The front end of the first threaded rod 206 is rotatable. The clamping plate 204 is movably connected to the rear end surface of the clamping plate 204, and the rear end of the first threaded rod 206 is fixedly connected with a first knob. The U-shaped frame 201 is set to realize the installation of the fixing plate 202 on the L-shaped rod 101, and the four corners of the product or brand information are clamped by the fixing plate 202 and the magnet 203 to realize the fixing of the product or brand information. The clamping plate 204 is set to fix the U-shaped frame 201 on the horizontal arm of the L-shaped rod 101, and the sleeve rod 205 and the first threaded rod 206 are set to drive the clamping plate 204 to move, and the first threaded rod 206 is convenient to rotate through the setting of the first knob;

[0043] The interior of the mounting column 301 is vertically movably connected with a lifting column 301a, and the top of the lifting column 301a is fixedly connected with a U-shaped plate 301b, which is respectively clamped on both sides of the bottom of the frame 1. A second positioning bolt 301c is threadedly penetrated on the outer wall of one side of the mounting column 301, and one end of the second positioning bolt 301c is threadedly connected to the inside of a second positioning hole 301d located on the outer wall of one side of the lifting column 301a. A tripod 301e is welded on the front and rear end surfaces of the mounting column 301, and the bottom of the tripod 301e is respectively fixedly connected At the front and rear ends of the upper surface of the bottom plate 302, the lifting column 301a is used to adjust the display height of the frame 1, and the U-shaped plate 301b is used to fix the lifting column 301a and the L-shaped rod 101 in the frame 1, and the U-shaped plate 301b is respectively clamped on the horizontal arms of the L-shaped rod 101 located on both sides below, the second positioning bolt 301c and the second positioning hole 301d are used to position the installation column 301 and the lifting column 301a, and the tripod 301e is used to enhance the stability of the installation column 301;

[0044] First mounting seats 302a are welded on the front and rear end surfaces of the bottom plate 302, and first rotating shafts 303a are penetrated through the outer walls of the first mounting seats 302a in a lateral rotation manner. One end of the first rotating shaft 303a is welded to the outer wall of the mounting block 304 close to the bottom plate 302, and the other end of the first rotating shaft 303a and the outer wall of the transmission rod 309 are sleeved with double groove wheels 303b, and the double groove wheels 303b are connected by belts 303c. The first rotating shaft 303a is rotatably mounted by the setting of the first mounting seat 302a, and the rotating block 303 is movably mounted on the bottom plate 302 by the setting of the first rotating shaft 303a, and the first rotating shaft 303a is driven to rotate by the transmission connection between the double groove wheels 303b and the belt 303c.

[0045] The interior of the mounting block 304 is vertically rotatably connected with a second threaded rod 304a, the upper end of the push rod 307 is threadedly sleeved on the outer wall of the second threaded rod 304a, and the outer wall of the second threaded rod 304a and the end of the transmission rod 309 away from the rotating rod 308 are sleeved with a bevel gear 304b, and the bevel gears 304b are meshed and connected with each other. The second threaded rod 304a is used to movably connect the upper end of the push rod 307 to the interior of the mounting block 304, and the bevel gear 304b is used to drive the second threaded rod 304a to rotate;

[0046] Square rods 309a are movably mounted on both sides of the rotating rod 308. One end of the square rod 309a passes through both ends of the rotating rod 308 and is welded to one end of the transmission rod 309 close to the rotating rod 308. The square rod 309a is used to movably connect the transmission rod 309 and the rotating rod 308, and to keep the rotating rod 308 and the transmission rod 309 rotating synchronously.

[0047] The operation process of this embodiment is: first, the frame 1 is moved by the pulley 305, and when the frame 1 moves to the specified position, an external force is applied to the rotating rod 308, so that the rotating rod 308 drives the transmission rod 309 to rotate synchronously. At this time, under the action of the meshing connection between the bevel gears 304b, the second threaded rod 304a rotates synchronously, and under the action of the threaded connection between the second threaded rod 304a and the top rod 307, the bottom end of the top rod 307 is in contact with the ground. At the same time, under the transmission action of the double groove wheel 303b and the belt 303c, the first rotating shaft 303a rotates synchronously, and the rotating block 303 is driven to rotate by the first rotating shaft 303a, so that the pulley 305 is separated from the ground and the support block 306 is supported on the ground, thereby achieving the fixation of the frame 1. Specific embodiment 2

[0049] See also Figure 9-10As shown, it is the second embodiment of the utility model, which is based on the previous embodiment, but is different from the previous embodiment in that: a lighting assembly 4 is also arranged above the frame 1, and the lighting assembly 4 includes a screw rod 401, a slider 402, a second mounting seat 403, a mounting plate 404 and an LED lamp 405. The LED is used to illuminate the product or brand information fixed in the frame 1, which solves the existing problem that it is inconvenient to use in dark places.

[0050] Specifically, the screw rod 401 is rotatably connected to the two sides of the top of the frame 1 in the horizontal direction, and a slider 402 is threadedly sleeved on the outer wall of the screw rod 401, and a second mounting seat 403 is welded to the two sides of the top of the slider 402, and a mounting plate 404 is rotatably connected between the second mounting seats 403, and the front end of the lower surface of the mounting plate 404 is fixedly connected with an LED lamp 405. Through the threaded connection between the screw rod 401 and the slider 402, the LED lamp 405 is translated in the horizontal direction, and through the rotational connection between the second mounting seat 403 and the mounting plate 404, the LED lamp 405 is driven to rotate, thereby realizing the adjustment of the height of the LED, and auxiliary lighting is provided by the LED lamp 405.

[0051] Further, both sides of the top of the frame 1 are fixedly connected with bearing seats 401a, both ends of the screw rod 401 are rotatably connected to the inside of the bearing seat 401a, one end of the screw rod 401 rotates through the bearing seat 401a and is fixedly connected with the second knob 207, the bearing seat 401a is used to rotatably install the screw rod 401 on the frame 1, and the screw rod 401 is located on the horizontal arm of the upper L-shaped rod 101, and the second knob 207 is used to drive the screw rod 401 to rotate;

[0052] The outer wall of the second mounting seat 403 is provided with a through groove 403a, and the inside of the through groove 403a is fixedly connected with a damping bearing 403b. The inside of the damping bearing 403b is rotatably sleeved with a second rotating shaft 404a, and the end of the second rotating shaft 404a away from the damping bearing 403b is respectively welded to the rear ends of the outer walls on both sides of the mounting plate 404. The through groove 403a is used to install the damping bearing 403b, and the installation plate 404 is rotatably installed between the second mounting seat 403 through the setting of the damping bearing 403b and the second rotating shaft 404a.

[0053] The rest of the structure is the same as that of the first embodiment.

[0054] The operation process of this embodiment is: first, rotate the second knob 207, and the second knob 207 drives the screw rod 401 to rotate synchronously, and under the action of the threaded connection between the screw rod 401 and the slider 402, the slider 402 drives the LED lamp 405 to move in the left and right directions. When the LED lamp 405 moves to the specified position in the lateral direction, stop rotating the second knob 207, and then apply external force to the mounting plate 404, so that under the action of the rotational connection between the second rotating shaft 404a and the damping bearing 403b, the mounting plate 404 drives the LED lamp 405 to rotate, thereby adjusting the height of the LED lamp 405, and finally turn on the power of the LED lamp 405, so that the LED lamp 405 is used to provide auxiliary lighting for the product or brand information displayed in the frame 1.

[0055] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", 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 utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0056] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An adjustable exhibition stand for exhibition construction, comprising a frame (1), characterized in that: A support assembly (3) is provided below the frame (1), and the mounting columns (301) in the support assembly (3) are respectively fixedly connected to the two sides of the bottom of the frame (1), the bottom ends of the mounting columns (301) are fixedly connected to the bottom plate (302), and the front and rear ends of the outer wall of one side of the bottom plate (302) are rotatably connected to a rotating block (303), the bottom of the rotating block (303) is fixedly connected to a pulley (305), and the top of the rotating block (303) is fixedly connected to a support block (306), the center position of the outer wall of one side of the bottom plate (302) is fixedly connected to a mounting block (304), and the internal movable sleeve of the mounting block (304) is provided with a top rod (307), and rotating rods (308) are provided between adjacent bottom plates (302), and both ends of the rotating rod (308) are movably connected to transmission rods (309); A lighting assembly (4) is also provided above the frame (1), and a screw rod (401) in the lighting assembly (4) is rotatably connected to both sides of the top of the frame (1) in a lateral direction, a slider (402) is threadedly sleeved on the outer wall of the screw rod (401), and second mounting seats (403) are welded to both sides of the top of the slider (402), a mounting plate (404) is rotatably connected between the second mounting seats (403), and an LED lamp (405) is fixedly connected to the front end of the lower surface of the mounting plate (404).

2. The adjustable exhibition stand according to claim 1, characterized in that: The frame (1) comprises L-shaped rods (101) respectively located at four sides, and the vertical arm and the horizontal arm of the L-shaped rod (101) are both movably sleeved with an inner rod (102), and the vertical arm and the horizontal arm of the L-shaped rod (101) are both threadedly penetrated by a first positioning bolt (103), and one end of the first positioning bolt (103) is threadedly connected to the inside of a first positioning hole (104) located on the inner rod (102).

3. The adjustable exhibition stand according to claim 2, characterized in that: A fixing assembly (2) is also provided on both sides of the transverse support arm of the L-shaped rod (101), and a U-shaped frame (201) in the fixing assembly (2) is clamped on both sides of the transverse support arm of the L-shaped rod (101), a fixing plate (202) is welded on the longitudinal support arm of the U-shaped frame (201), and a magnet (203) is magnetically connected to the front end surface of the fixing plate (202), a clamping plate (204) is movably connected inside the U-shaped frame (201), and the front end surface of the clamping plate (204) is abutted against the rear end of the transverse support arm of the L-shaped rod (101), a sleeve rod (205) is passed through the vertical support arm at the rear end of the U-shaped frame (201), and the sleeve rod (205) is internally threadedly connected to a first threaded rod (206), the front end of the first threaded rod (206) is rotatably connected to the rear end surface of the clamping plate (204), and the rear end of the first threaded rod (206) is fixedly connected to a first knob.

4. The adjustable exhibition stand according to claim 1, characterized in that: The interior of the mounting column (301) is movably connected to a lifting column (301a) in the vertical direction, and the top of the lifting column (301a) is fixedly connected to a U-shaped plate (301b), and the U-shaped plate (301b) is respectively clamped on both sides of the bottom of the frame (1). A second positioning bolt (301c) is threadedly penetrated on the outer wall of one side of the mounting column (301), and one end of the second positioning bolt (301c) is threadedly connected to the inside of a second positioning hole (301d) located on the outer wall of one side of the lifting column (301a). Tripods (301e) are welded to the front and rear end surfaces of the mounting column (301), and the bottom of the tripod (301e) is respectively fixedly connected to the front and rear ends of the upper surface of the bottom plate (302).

5. The adjustable exhibition stand according to claim 1, characterized in that: The front and rear end surfaces of the bottom plate (302) are both welded with a first mounting seat (302a), and the outer wall of the first mounting seat (302a) is penetrated by a first rotating shaft (303a) for transverse rotation, one end of the first rotating shaft (303a) is welded to the outer wall of the mounting block (304) close to the bottom plate (302), and the other end of the first rotating shaft (303a) and the outer wall of the transmission rod (309) are both sleeved with a double groove wheel (303b), and the double groove wheels (303b) are connected by a belt (303c) for transmission.

6. The adjustable exhibition stand according to claim 1, characterized in that: A second threaded rod (304a) is vertically rotatably connected inside the mounting block (304), the upper end of the push rod (307) is threadedly sleeved on the outer wall of the second threaded rod (304a), and bevel gears (304b) are sleeved on the outer wall of the second threaded rod (304a) and on one end of the transmission rod (309) away from the rotating rod (308), and the bevel gears (304b) are meshedly connected with each other.

7. The adjustable exhibition stand according to claim 6, characterized in that: Square rods (309a) are movably sleeved on both sides of the rotating rod (308), and one end of the square rod (309a) passes through the two ends of the rotating rod (308) and is welded to one end of the transmission rod (309) close to the rotating rod (308).

8. The adjustable exhibition stand according to claim 1, characterized in that: Both sides of the top of the frame (1) are fixedly connected to bearing seats (401a), both ends of the screw rod (401) are rotatably connected to the inside of the bearing seat (401a), and one end of the screw rod (401) rotates through the bearing seat (401a) and is fixedly connected to the second knob (207).

9. The adjustable exhibition stand according to claim 1, characterized in that: The outer wall of the second mounting seat (403) is provided with a through groove (403a), and the inside of the through groove (403a) is fixedly connected with a damping bearing (403b), and the inside of the damping bearing (403b) is rotatably sleeved with a second rotating shaft (404a), and the end of the second rotating shaft (404a) away from the damping bearing (403b) is respectively welded to the rear ends of the outer walls on both sides of the mounting plate (404).

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