Display board fixing device

Abstract

The present invention discloses a display board fixing device, comprising two symmetrically arranged support rods, the support rods having a through slot for the display board to pass through, the two support rods being rotatably connected with a rotating shaft near the top position, and a support rod being fixedly arranged between the two support rods near the bottom position, and a base being provided at the top of the support rod; a limiting assembly is provided between the support rod and the base, and a positioning assembly is provided between the rotating shaft and the support rod. When the limiting assembly releases the connection relationship between the support rod and the base, the display board rotates around the rotating shaft as the axis, and the rotating shaft and the support rod are locked by the positioning assembly to maintain the inclined state of the display board; through the provided limiting assembly, when the wind force is strong, the limiting assembly is used to release the connection relationship between the base and the support rod, so that the display board can rotate around the rotating shaft as the center, and the positioning assembly can position the inclined display board to keep it in a stable state, thereby maintaining the overall stability of the device.

Description

Technical Field

[0001] The present invention relates to the technical field of exhibition display equipment, and in particular to an exhibition board fixing device. Background Art

[0002] Exhibition boards refer to plate-like media used for publishing and displaying information. Exhibition board design can directly promote products, arouse consumers' desire to buy, and increase sales. Exhibition boards in enterprises, factories, hospitals, school communities, etc. can create a good and harmonious atmosphere. Exhibition board design is an important carrier for attracting audiences, promoting products, and promoting consumption, and public welfare exhibition boards can also give people a feeling of deep thought.

[0003] Chinese invention patent CN105632366A discloses a foldable, telescopic, and movable display panel stand, comprising a base, a display panel holder, and a support frame. A pin extends through a pair of pin holes at the lower end of a trough-shaped body and a pair of pin holes at the front end of a parallel upright; a pin extends through a pair of pin holes at the lower end of a lower trough-shaped body and a pair of pin holes at the rear end of a parallel upright; and a pin extends through a pair of pin holes at the upper end of an upper trough-shaped body and a positioning slot on the trough-shaped body. The foldable structure makes the display panel stand easy to carry and store. As a universal component, two or more components can be used in combination to form a solid whole with the supported display panel.

[0004] The above-mentioned display board is fixed by brackets and hooks, so that the display board and the fixing device are integrated into one. Although it has good stability, when the display board is used outdoors, it is precisely because it is in a relatively locked state with the fixing device that the force-bearing area of ​​the display board is large and it cannot move, making it easy to tip over, which is not conducive to protecting the integrity of the display board.

[0005] Therefore, it is necessary to provide a display board fixing device to solve the above technical problems. Summary of the Invention

[0006] The purpose of the present invention is to provide a display board fixing device to solve the problem proposed in the above background technology that the existing display board and the fixing device are combined into one. Although it has good stability, when the display board is used outdoors, it is in a relatively locked state with the fixing device, which makes the force-bearing area of ​​the display board large and unable to move, making it easy to tip over.

[0007] Based on the above ideas, the present invention provides the following technical solution: comprising two symmetrically arranged support rods, each of which has a through slot for the display board to pass through, a rotating shaft rotatably connected between the two support rods near the top end, a support rod fixedly arranged between the two support rods near the bottom end, and a base provided on the top of each support rod;

[0008] A limiting assembly is provided between the support rod and the base, and a positioning assembly is provided between the rotating shaft and the support rod. When the limiting assembly releases the connection between the support rod and the base, the display board rotates around the rotating shaft, and the rotating shaft and the support rod are locked by the positioning assembly to maintain the tilted state of the display board.

[0009] As a further solution of the present invention: the limit assembly includes a limit shaft arranged at the bottom end of the support rod, the limit shaft passes through the support rod and is slidably connected to the support rod, the bottom of the base is provided with a limit groove matching the limit shaft, a sleeve is fixedly connected to the bottom surface of the support rod, the limit shaft is slidably arranged inside the sleeve, a baffle is fixedly sleeved on the outer bottom end of the limit shaft, a first spring is arranged between the top of the baffle and the support rod, the first spring is sleeved on the outside of the sleeve, and the bottom end of the limit shaft is fixedly connected to a pull rope.

[0010] The top of the fixing plate is fixedly connected to the outer surface of the rotating shaft, and the top of the fixing plate is provided with a positioning groove that is slidably matched with the positioning block. The side of the positioning block protrudes outward to form a limit block, and a sliding groove is provided in the limit block, and a slider is slidably connected to the slide groove. The end faces of the slider are connected to the first magnet, and a fourth spring is provided on the bottom surface of the limit block, and the two clamping plates are symmetrically provided in the groove, and the clamping plate is slidably connected to the limit block. The limit block is provided with strip grooves connected to the slot on both sides of the top of the slot that are connected to the slot. The top of the clamping plate is fixedly connected to the second magnet, and the second magnet is slidably arranged in the strip groove. The second magnet has the same magnetic pole on the side opposite to the first magnet. At least two third springs are provided on the top of the second magnet, and the third spring is arranged in the strip groove.

[0011] As a further solution of the present invention: the top of the support rod is rotatably connected to a rotating plate, and the rotating plate is arranged below the limit block and has a gap between the rotating plate and the limit block, and the top surface of the rotating plate is located on both sides of the limit block and is fixedly provided with a clamping strip, and the clamping strips on both sides are inclined outward, and the clamping plate is set as an inclined surface close to the side of the clamping strip adjacent to it, and the top two sides of the rotating plate are fixedly connected to a boss, and the outer surface of the boss is fixedly connected to a sliding rod, and the outer sliding sleeve of the sliding rod is provided with a shaft sleeve, and the two side surfaces of the support rod are fixedly connected to a protrusion, and the bottom end of the shaft sleeve is fixedly connected to the protrusion, and a second spring is provided in the shaft sleeve at the bottom end of the slide rod.

[0012] As a further solution of the present invention: the interior of the protrusion is set as a cavity, a guide groove is opened on the top wall of the protrusion, the protrusion is connected to the shaft sleeve, and an exhaust hole is opened on the bottom surface of the protrusion.

[0013] As a further solution of the present invention: an air inlet pipe is provided at the bottom of the protrusion, and a one-way valve is provided on the air inlet pipe for allowing external air to enter the protrusion in one direction. The diameter of the air inlet pipe is larger than the diameter of the exhaust hole.

[0014] As a further solution of the present invention: a sleeve rod is slidably provided at the bottom end of the support rod, and the outer side of the sleeve rod is threadedly engaged with a first screw rod.

[0015] As a further solution of the present invention: a second screw is provided on the outer sides of the base and the rotating shaft, and the rotating shaft and the base are both threadedly connected to the second screw.

[0016] As a further solution of the present invention: a windshield belt is fixedly connected between the two support rods, and the bottom end of the pull rope is connected to the windshield belt.

[0017] As a further solution of the present invention: a card slot is opened on the outer side surface of the rotating shaft near the base, the bottom end of the through slot on the support rod is fixedly connected to a connecting seat, the base is arranged between the two connecting seats and aligned with the connecting seats, and the base and the connecting seat are both arranged to be U-shaped.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The display board is fixed by the rotating shaft and the base. When encountering strong winds, the pull rope can be used to drive the limit shaft to overcome the force of the first spring and move downward, so that the top end of the limit shaft is moved out of the limit hole. At this time, the connection between the support rod and the base is released, so that the base is in a free movable state. When the wind acts on the display board, it can cause the display board to rotate around the rotating shaft and be in a tilted state, thereby achieving the effect of unloading force and preventing the entire device from tipping over due to strong wind.

[0020] 2. Through the setting of the limit assembly, when the wind force is strong, the limit assembly releases the connection between the base and the support rod, so that the display board can rotate around the axis, and the positioning assembly can position the tilted display board to keep it stable, thereby maintaining the overall stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below with reference to the accompanying drawings and examples.

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a structural schematic diagram of the rotating shaft and the dust barrier belt of the present invention;

[0024] Figure 3 It is a structural schematic diagram of the positioning block and the positioning groove of the present invention;

[0025] Figure 4 It is a schematic diagram of the bump structure of the present invention;

[0026] Figure 5 This invention Figure 2 A schematic diagram of the enlarged structure at point A;

[0027] Figure 6 It is a schematic diagram of the support rod and base structure of the present invention;

[0028] Figure 7 This invention Figure 3 A schematic diagram of the enlarged structure at point B;

[0029] Figure 8 This is a schematic diagram of the card strip distribution of the present invention;

[0030] Figure 9 This invention Figure 8 Schematic diagram of the enlarged structure at C;

[0031] Figure 10 It is a schematic diagram of the structure of the clamping plate and the third spring of the present invention.

[0032] In the figure: 1. sleeve rod; 2. bottom plate; 3. support rod; 4. connecting seat; 5. limit block; 6. positioning block; 7. rotating shaft; 8. display board; 9. fixing rod; 10. wind shield; 11. positioning groove; 12. shaft sleeve; 13. slide rod; 14. bump; 15. exhaust hole; 16. intake pipe; 17. first spring; 18. sleeve; 19. limit shaft; 20. support rod; 21. pull rope; 22. limit hole; 23. clamping strip; 24. rotating plate; 25. guide groove; 26. second spring; 27. second magnet; 28. third spring; 29. ​​clamping plate; 30. slider; 31. first magnet; 32. strip groove; 33. fourth spring; 34. base. DETAILED DESCRIPTION

[0033] like Figure 1-2 As shown, a display board fixing device includes a base plate 2 and a sleeve rod 1 fixedly connected to both sides of the top of the base plate 2. The top of the sleeve rod 1 is slidably fitted with a support rod 3, and a through groove is provided on the support rod 3 to facilitate the display board 8 to slide through the through groove and be fixed between the two support rods 3.

[0034] In order to fix the display panel 8, the top end of the support rod 3 is set to be arc-shaped, and a rotating shaft 7 is rotatably connected between the two support rods 3 near the top end. In addition, a support rod 20 is provided between the two support rods 3 near the bottom end. The support rod 20 is provided below the through groove. The support rod 20 is fixed to the support rod 3. A base 34 is assembled on the top of the support rod 20. During the specific installation, the display panel 8 is inserted through the through groove on the support rod 3 and placed between the rotating shaft 7 and the base 34 to facilitate fixing the display panel 8. A fixing rod 9 is fixedly connected between the base 34 and the rotating shaft 7.

[0035] Furthermore, a slot is provided on the outer side surface of the rotating shaft 7 near the base 34, and the bottom end of the through slot on the support rod 3 is fixedly connected to the connecting seat 4. The above-mentioned base 34 is arranged between the two connecting seats 4 and aligned with the connecting seat 4, so as to facilitate the rapid insertion of the display board 8 between the rotating shaft 7 and the base 34. The above-mentioned base 34 and the connecting seat 4 are both arranged in a U shape, so as to facilitate the clamping of the display board 8.

[0036] like Figure 2 、 5 -6, in actual use, although the display board 8 can be fixed by the rotating shaft 7 and the base 34, when the display board 8 is used outdoors and encounters strong winds, the above-mentioned display board 8 has a large area and a large force-bearing area, and is prone to tipping over. Therefore, this solution assembles a limiting component between the support rod 20 and the base 34. When the wind is strong, the support rod 20 and the base 34 are disconnected. At this time, the display board 8 will rotate with the rotating shaft 7 as the rotation center, so that the display board 8 can be tilted to maintain its stability.

[0037] Specifically, the above-mentioned limit assembly includes a limit shaft 19 arranged at the bottom end of the support rod 20, the limit shaft 19 passes through the support rod 20 and is slidably connected to the support rod 20, and the bottom of the base 34 is provided with a limit groove that cooperates with the limit shaft 19, and a sleeve 18 is fixedly connected to the bottom surface of the support rod 20, so that the limit shaft 19 is slidably arranged inside the sleeve 18, and a baffle is fixedly sleeved on the bottom end of the outer side of the limit shaft 19, and a first spring 17 is arranged between the top of the baffle and the support rod 20. The first spring 17 is sleeved on the outside of the sleeve 18 and its two ends are respectively fixed to the top surface of the baffle and the bottom surface of the support rod 20, and a pull rope 21 is fixedly connected to the bottom end of the limit shaft 19 for pulling the limit shaft 19 out of the base 34.

[0038] When the cam 34 is in the upright position, the cam 34 is in the upright position, and the cam 34 is in the upright position, so that the cam 34 can move freely.

[0039] In actual use, the pull rope 21 can be pulled by manpower or by automated means. Specifically, a windshield belt 10 can be fixedly connected between the two support rods 3. The windshield belt 10 here can be made of materials such as rubber or plastic, and the bottom end of the pull rope 21 is connected to the windshield belt 10. When the wind is strong, the windshield belt 10 will be deformed by the wind, thereby pulling the pull rope 21. Alternatively, a power component such as a motor can be used as a driving unit, so that the bottom end of the pull rope 21 is connected to the output shaft of the motor. When the wind is strong, the output shaft is driven by the motor to rotate and the bottom end of the pull rope 21 is wrapped around. The limit hole 22 is pulled out through the limit shaft 19 of the pull rope 21, so that the support rod 20 and the base 34 are disconnected. Of course, the method of pulling the pull rope 21 is not limited to the above structure.

[0040] like Figure 2-10 As shown, although the above structure can release the connection between the support rod 20 and the base 34 when the wind is strong, so that the display board 8 is in a tilted state, since the display board 8 is not in a fixed state, the display board 8 will shake under the action of wind, which is not conducive to maintaining the overall stability of the device. Therefore, this solution also provides a positioning component between the rotating shaft 7 and the support rod 3 to facilitate positioning of the tilted display board 8 and maintain its stability without shaking with changes in wind force.

[0041] Specifically, the above-mentioned positioning assembly includes a positioning block 6 fixedly connected to the outer side of the rotating shaft 7, and the top of the support rod 3 is provided with a positioning groove 11 that slides with the positioning block 6. The side of the positioning block 6 protrudes outward to form a limit block 5, and a slide groove is provided in the limit block 5, and a slider 30 is slidably connected in the slide groove. The end faces of both ends of the slider 30 are connected to the first magnet 31, and the side of the first magnet 31 away from the slider 30 is provided with a fourth spring 33. The fourth spring 33 is arranged between the first magnet 31 and the end face of the slide groove. A long strip of notch is provided on the bottom surface of the limit block 5, and two card plates 29 are symmetrically provided in the notch. The card plates 29 are slidably connected to the limit block 5. Strip grooves 32 connected to the notch are provided on both sides of the top of the notch in the limit block 5, and the card plates 29 are A second magnet 27 is fixedly connected to the top, and the second magnet 27 extends into the strip groove 32 and slides with the limit plate through the strip groove 32. The second magnet 27 has the same magnetic pole on the side opposite to the first magnet 31. At least two third springs 28 are provided on the top of the second magnet 27. The third spring 28 is provided in the strip groove 32 and the two ends of the third spring 28 are respectively fixed to the top surface of the second magnet 27 and the top wall of the strip groove 32. In the initial state, the card plate 29 is received in the slot under the tension of the third spring 28. When the rotating shaft 7 rotates and synchronously drives the limit block 5 to deflect, the first magnet 31 will deflect, so that it is aligned with the second magnet 27. At this time, the repulsive force between the first magnet 31 and the second magnet 27 can drive the card plate 29 to move downward.

[0042] The top of the support rod 3 is rotatably connected to a rotating plate 24, and the rotating plate 24 is arranged under the limit block 5 and has a certain gap between it and the limit block 5. The top surface of the rotating plate 24 is located on both sides of the limit block 5 and is fixedly provided with a clip 23. The clips 23 on both sides are inclined outward, that is, inclined in the direction away from the limit block 5, and the above-mentioned clip 29 is close to the side of the clip 23 adjacent to it, and the inclined direction of the inclined surface on the clip 29 on the same side is the same as the inclined direction of the clip 23. Bosses are fixedly connected to both sides of the top of the rotating plate 24, and the outer surface of the boss is fixedly connected to the sliding rod 13, and the outer sliding sleeve of the sliding rod 13 is provided with a shaft sleeve 12. The two sides of the support rod 3 are fixedly connected with a protrusion 14, so that the bottom end of the shaft sleeve 12 is fixedly connected to the protrusion 14, and the bottom end of the slide rod 13 extends into the shaft sleeve 12 and is slidably connected therewith, and a second spring 26 is provided at the bottom end of the slide rod 13 in the shaft sleeve 12.

[0043] Furthermore, the interior of the protrusion 14 is configured as a cavity, and a guide groove 25 is provided on the top wall of the protrusion 14 so that the protrusion 14 is in conduction with the shaft sleeve 12 . An exhaust hole 15 is provided on the bottom surface of the protrusion 14 .

[0044] During actual use, when the wind is strong, the limit shaft 19 is pulled downward by the pull rope 21, so that the connection between the support rod 20 and the base 34 is released. At this time, the display board 8 rotates in an inclined state, and by driving the rotation shaft 7 to rotate, the rotation shaft 7 can drive the limit block 5 to rotate on the outside of the rotating plate 24. When the limit block 5 deflects, the slider 30 will overcome the force of the fourth spring 33 in the slide groove and deflect, thereby making the first magnet 31 on one side of the slider 30 aligned with one of the second magnets 27. For the purpose of illustration, it is assumed that the limit block 5 deflects to the left to Figure 9 The direction shown is taken as the standard. At this time, the first magnet 31 on the right side of the slider 30 is aligned with the second magnet 27 on the left side, so that the repulsive force of the first magnet 31 on the second magnet 27 causes the card plate 29 to overcome the force of the third spring 28 and move downward. When the limit plate rotates to the card strip 23, the downward moving card plate 29 cooperates with the card strip 23 to position the limit block 5 and the rotating shaft 7, maintaining the stability of the rotating shaft 7 after rotating to a certain angle, which is conducive to maintaining the stability of the display board 8 after tilting to a certain angle. Through the arrangement of the above structure, the display board 8 can be The plate 8 can be positioned regardless of whether it is deflected to the left or right, thereby maintaining the stability of the display plate 8 and preventing it from shaking, which is beneficial to further maintaining the stability of the entire device. When the wind force continues to act on the display plate 8, the wind force will form a certain force on the display plate 8. At this time, the force of the clamping plate 29 on the clamping strip 23 is relatively small. When the wind speed is low, the display plate 8 is in an inclined state. Under the action of its own gravity, the display plate 8 tends to rotate downward, thereby prompting the rotating shaft 7 to tend to rotate in the opposite direction. At this time, the clamping plate 29 exerts a certain force on the clamping strip 23. As the force increases, the rotating plate 24 can be gradually driven to rotate on the top of the support plate through the force of the clamping plate 29 and the clamping strip 23, thereby prompting the slide bar 13 to slide in the shaft sleeve 12 and squeeze out the gas in the shaft sleeve 12 and the protrusion 14 through the exhaust hole 15. However, due to the small size of the exhaust hole 15, the gas exhaust rate is slow. Therefore, only after the wind stops for a period of time, the display board 8 is slowly rotated downward to reset until it is in a vertical state so that the limit block 5 is re-engaged in the limit hole 22. When the wind speed is constantly changing, Since the gas in the sleeve 12 and the protrusion 14 will not be discharged quickly, the display board 8 will not swing due to the influence of wind, which is conducive to maintaining the stability of the display board 8. When the display board 8 is in a vertical state, the slider 30 can be driven to slide to the middle position of the slide groove under the action of the fourth spring 33, so that the first magnet 31 and the second magnet 27 are staggered. At this time, the clamping plate 29 can be driven to be retracted into the slot under the pulling force of the third spring 28, and then the rotating plate 24 can be driven to reset under the action of the second spring 26, which is conducive to the next use.

[0045] To sum up, this device is provided with a limit assembly. When the wind force is strong, the limit assembly releases the connection between the base 34 and the support rod 20, so that the display panel 8 can rotate around the rotating shaft 7. The positioning assembly can also be used to position the tilted display panel 8 so that it remains in a stable state, thereby maintaining the overall stability of the device.

[0046] like Figure 4 、 8 As shown, an air inlet pipe 16 is provided at the bottom of the protrusion 14, and a one-way valve is provided on the air inlet pipe 16 for allowing external air to enter the protrusion 14 in one direction. The diameter of the air inlet pipe 16 is larger than the diameter of the exhaust hole 15, so that the sliding rod 13 and the rotating plate 24 can be quickly reset to the initial state for the next use.

[0047] like Figure 1 As shown, a first screw is threadedly engaged with the outer side of the sleeve rod 1. During actual use, the screw is rotated to drive it to move toward the support rod 3, so that the support rod 3 can be locked to keep it stable.

[0048] A second screw is provided on the outside of the base 34 and the rotating shaft 7. The second screw passes through the base 34 and the rotating shaft 7, and the rotating shaft 7 and the base 34 are both threadedly connected to the second screw, so that when the second screw is rotated, it can be driven to move toward the display board 8 to lock it.

[0049] like Figure 1-2 As shown, a through groove is provided on the inner side of the sleeve rod 1 so that the wind shielding belt 10 can move relative to the sleeve rod 1 without interfering with it.

[0050] like Figure 5 As shown, pulleys are provided on both sides of the pull rope 21, and the pulleys are connected to the support rod 20. Through the provided pulleys, when the windshield belt 10 deflects, the limit shaft 19 can be stably driven to move downward through the pull rope 21.

Claims

1. A display board fixing device, comprising two symmetrically arranged support rods, each of which has a through slot for the display board to pass through, characterized in that: A rotating shaft is rotatably connected between the two support rods near the top end, and a support rod is fixedly provided between the two support rods near the bottom end, and a base is provided on the top of the support rod; A limit assembly is provided between the support rod and the base, and a positioning assembly is provided between the rotating shaft and the support rod. When the limit assembly releases the connection between the support rod and the base, the display board rotates around the rotating shaft, and the rotating shaft and the support rod are locked by the positioning assembly to maintain the tilted state of the display board. The limiting assembly includes a limiting shaft arranged at the bottom end of the support rod, the limiting shaft passes through the support rod and is slidably connected to the support rod, the bottom of the base is provided with a limiting groove that matches the limiting shaft, a sleeve is fixedly connected to the bottom surface of the support rod, the limiting shaft is slidably arranged inside the sleeve, a baffle is fixedly sleeved on the outer bottom end of the limiting shaft, a first spring is arranged between the top of the baffle and the support rod, the first spring is sleeved on the outer side of the sleeve, and the bottom end of the limiting shaft is fixedly connected to a pull rope; A windshield belt is fixedly connected between the two support rods, and the bottom end of the pull rope is connected to the windshield belt; The top of the card plate is fixedly connected to the second magnet, and the second magnet is slidably arranged in the bar groove, and the side of the second magnet opposite to the first magnet has the same magnetic pole, and at least two third springs are provided on the top of the second magnet, and the third spring is arranged in the bar groove; The top of the support rod is rotatably connected to a rotating plate, and the rotating plate is arranged under the limit block and has a gap between it and the limit block, and the top surface of the rotating plate is located at both sides of the limit block, and the clips on both sides are inclined outward, and the clips on both sides are arranged near the side of the clip adjacent to the adjacent clip, and a slope is set. The top two sides of the rotating plate are fixedly connected to a boss, and the outer surface of the boss is fixedly connected to a sliding rod, and the outer sliding sleeve of the sliding rod is provided with a shaft sleeve, and the two side surfaces of the support rod are fixedly connected to a protrusion, and the bottom end of the shaft sleeve is fixedly connected to the protrusion. A second spring is provided in the shaft sleeve at the bottom end of the slide rod; The interior of the protrusion is set as a cavity, a guide groove is provided on the top wall of the protrusion, the protrusion is connected with the shaft sleeve, and an exhaust hole is provided on the bottom surface of the protrusion.

2. The display panel fixing device according to claim 1, characterized in that: The bottom of the protrusion is connected to an air inlet pipe, and the air inlet pipe is provided with a one-way valve for allowing external air to enter the protrusion in one direction. The diameter of the air inlet pipe is larger than the diameter of the exhaust hole.

3. The display panel fixing device according to claim 1, characterized in that: A sleeve rod is slidably provided at the bottom end of the support rod, and a first screw rod is engaged with an outer thread of the sleeve rod.

4. The display panel fixing device according to claim 1, characterized in that: The outer sides of the base and the rotating shaft are both provided with a second screw rod, and the rotating shaft and the base are both threadedly connected to the second screw rod.

5. The display panel fixing device according to claim 1, characterized in that: A slot is provided on the outer side surface of the rotating shaft near the base, and a connecting seat is fixedly connected to the bottom end of the through slot on the support rod. The base is arranged between the two connecting seats and aligned with the connecting seats. Both the base and the connecting seat are arranged in a U shape.

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