LED display screen capable of being spliced and combined

Abstract

The invention relates to the technical field of combined LED display screens, in particular to an LED display screen capable of being spliced and combined, which is used for being detachably mounted on a support frame and comprises a display screen body, mounting rods are fixedly mounted at four corners of the back of the display screen, and mounting sleeves corresponding to the mounting rods are fixedly mounted on the support frame. A pressing piece is slidably connected into the mounting sleeve, a positioning pipe penetrates through and is fixedly mounted in the pressing piece, the mounting rod is slidably connected with an inner cavity of the positioning pipe, a jacking column fixedly connected with an inner cavity of the mounting sleeve is slidably connected to the bottom of the inner cavity of the positioning pipe, and a driving piece and a clamping piece are slidably connected into the positioning pipe. One side of the top of the driving part is attached to one side of the bottom of the clamping part, a first buckle plate connected with the clamping part in a buckled mode is vertically and slidably installed at the top of an inner cavity of the pressing part, a first spring is fixedly connected between the first buckle plate and the top of the inner cavity of the pressing part, and a driving assembly is installed between the first buckle plate and the driving part.

Description

Technical Field

[0001] The invention relates to the technical field of combined LED display screens, and in particular to an LED display screen that can be spliced ​​and combined. Background Art

[0002] In conference rooms, a large screen device is usually installed to display some conference content or broadcast videos. The traditional playback method generally uses a projector to play videos, which is also convenient to use. Only a display screen is needed to complete the projection. However, this method has poor comprehensive display effect and low brightness. It is easy to make the picture unclear under the condition of sunlight or light. Therefore, spliced ​​display screens are gradually used in conference rooms to replace current projectors. Not only is the overall resolution high, but it is also not affected by sunlight and light. In the later maintenance, only part of the spliced ​​display screen needs to be disassembled and repaired, and there is no need to replace the entire screen. During the installation process of the existing spliced ​​display screen, the LED display screen is generally installed on the support frame by plastic clips, which is inconvenient to install and troublesome to disassemble one of the LED display screens later. When disassembling the LED display screen installed by plastic clips, it is easy to apply too much force, causing the LED display screen to fall off accidentally. In order to avoid the above problems, people will use suction cups to assist in disassembling LED display screens. During the process of using the suction cups for disassembly, it is necessary to control the suction force of the suction cups. If the suction force is not enough, the display screen will separate from the suction cups and fall off when the display screen is pulled out. Excessive suction force can easily damage the display screen, which has certain shortcomings. In addition, an additional suction cup is required when disassembling the LED display screen.

[0003] The above information disclosed in this Background section is only for enhancement of understanding of the background of the present disclosure and therefore it may contain information that does not constitute the prior art that is already known to one of ordinary skill in the art. Summary of the invention

[0004] The purpose of the present invention is to design a device that does not require a suction cup to assist in disassembling an LED display screen. The LED display screen can be manually disassembled and assembled by only pressing, and there is no need to worry about the problem that the suction force affects the disassembly and assembly of the display screen, so as to solve the above-mentioned shortcomings in the technology.

[0005] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: an LED display screen that can be spliced ​​and assembled, which is used for detachable installation on a support frame, including a display screen body, mounting rods are fixedly installed at the four corners of the back of the display screen, a mounting sleeve corresponding to the mounting rod is fixedly installed on the support frame, a pressing piece is slidably connected in the mounting sleeve, a positioning tube is penetrated and fixedly installed in the pressing piece, the mounting rod is slidably connected to the inner cavity of the positioning tube, a top column fixedly connected to the inner cavity of the mounting sleeve is slidably connected to the bottom of the inner cavity of the positioning tube, and an active part and a clamping part are slidably connected in the positioning tube. One side of the top of the active part is fitted with one side of the bottom of the clamping part, and a first snap plate connected to the clamping part is vertically slidably installed on the top of the inner cavity of the pressing part, a first spring is fixedly connected between the first snap plate and the top of the inner cavity of the pressing part, a driving component is installed between the first snap plate and the active part, a first through hole is opened at the bottom of the pressing part, a positioning component passing through the first through hole is installed between the first snap plate and the bottom surface of the inner cavity of the mounting sleeve, a second spring is fixedly installed between the clamping part and the driving component, and a third spring is fixedly installed between the bottom of the pressing part and the bottom of the inner cavity of the mounting sleeve.

[0006] Preferably, the driving assembly includes a first cylinder fixedly connected to the inner wall of the pressing member, a second cylinder vertically slidably installed on the top of the first cylinder, a liquid storage tank opened in the second cylinder, a piston slidably connected in the liquid storage tank, a driving rod fixedly connected to the bottom of the piston and passing through the bottom of the first cylinder and the second cylinder, and a connecting rod rotatably installed between the driving rod and the active member, the liquid storage chamber is filled with non-Newtonian liquid, the end of the second spring is fixedly connected to the outer wall of the first cylinder, and the top surface of the second cylinder is in contact with the bottom surface of the first snap plate.

[0007] Preferably, the liquid storage tank includes a first liquid tank slidably connected to the piston, a second liquid tank connected to the top of the first liquid tank, and a third liquid tank connected to the top of the second liquid tank, the diameter of the second liquid tank is smaller than that of the first liquid tank and the third liquid tank, the diameters of the first liquid tank and the second liquid tank are the same, and the non-Newtonian liquid is located in the first liquid tank.

[0008] Preferably, the positioning assembly includes a rocker arm rotatably connected to both sides of the first snap plate, a positioning rod fixedly installed at the two ends of the rocker arm, a positioning plate fixedly connected to the bottom of the inner cavity of the mounting platform, and an annular groove opened in the positioning plate.

[0009] Preferably, the annular groove includes a first groove and a second groove, the top of the first groove has a first limiting groove, the top of the second groove has a second limiting groove, when the positioning rod is located in the first limiting groove, the clamping piece is in contact with the surface of the mounting rod, when the positioning rod is located in the second limiting groove, the clamping piece does not contact the surface of the mounting rod.

[0010] Preferably, the positioning rod is located at the bottom end of the second groove, and when the bottom surface of the first snap plate contacts the top surface of the first tube, the first snap plate is engaged with the clamping member, and the clamping member does not contact the mounting rod.

[0011] Preferably, a fourth spring is fixedly mounted between the first cylinder and the active member.

[0012] Preferably, a slide rod is fixedly mounted on the top of the first snap plate, and a columnar slide groove slidably connected to the slide rod is formed on the top of the pressing member.

[0013] Preferably, a second through hole is further opened at the bottom of the pressing member, a second snap plate fixedly connected to the bottom of the inner cavity of the mounting sleeve passes through the second through hole, and the second snap plate is snap-connected to the bottom surface of the inner cavity of the pressing member.

[0014] Preferably, an annular groove is formed on the outer peripheral surface of the mounting rod, and the clamping member is inserted into the annular groove and slidably connected thereto.

[0015] In the above technical solution, the technical effects and advantages provided by the present invention are: The present invention can make the display screen body to be removed no longer be clamped by quickly pressing the display screen body to the installation sleeve, waiting for a while after the pressing stops, and then releasing the pressing sleeve, and the display screen body can be actively protruded from the surface of other installed display screen bodies, so that the staff can directly remove the display screen body by hand without using a suction cup to assist in the removal; When the display screen body is installed on the support frame in the prior art, the present invention only needs to align the installation rod on the display screen body with the positioning tube, quickly press it and then directly release it, so that the clamping member can clamp the installation rod, thereby quickly installing the display screen body on the support frame, which is simple, convenient and fast to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the disassembly of the installation rod and the positioning tube of the present invention; Figure 3 It is a schematic diagram of the internal structure of the installation sleeve of the present invention; Figure 4 It is a cross-sectional view of the positioning tube and the mounting sleeve of the present invention; Figure 5It is a schematic diagram of the internal structure of the first tube and the second tube of the present invention; Figure 6 It is a schematic diagram of the local structural connection of the positioning component of the present invention.

[0018] Description of reference numerals: 1. Support frame; 2. Display screen body; 3. Mounting rod; 4. Mounting sleeve; 5. Pressing member; 6. Positioning tube; 7. Top column; 8. Active member; 9. Clamping member; 10. First buckle plate; 11. First spring; 12. Driving assembly; 12a. First cylinder; 12b. Second cylinder; 12c. Liquid storage tank; 12c1. First liquid tank; 12c2. Second liquid tank; 12c3. Third liquid tank; 12d. Piston; 12e. Driving rod; 12f. Connecting rod; 12 g, non-Newtonian liquid; 13, first through hole; 14, positioning assembly; 14a, rocker rod; 14b, positioning rod; 14c, positioning plate; 14d, annular slide; 14d1, first groove; 14d2, second groove; 14d3, first limiting groove; 14d4, second limiting groove; 15, second spring; 16, third spring; 17, fourth spring; 18, slide rod; 19, cylindrical slide; 20, second through hole; 21, second snap plate; 22, annular groove. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the described embodiments are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0020] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0021] The present invention provides Figure 1-6The LED display screen shown in the figure is used for detachable installation on the support frame 1 in the prior art, including a display screen body 2, mounting rods 3 are fixedly installed at the four corners of the back of the display screen, an annular groove 22 is provided on the outer peripheral surface of the support frame 1, a mounting sleeve 4 corresponding to the mounting rod 3 is fixedly installed on the support frame 1, a pressing piece 5 is slidably connected in the mounting sleeve 4, a positioning tube 6 is penetrated and fixedly installed in the pressing piece 5, the mounting rod 3 is slidably connected to the inner cavity of the positioning tube 6, a top column 7 fixedly connected to the inner cavity of the mounting sleeve 4 is slidably connected to the bottom of the inner cavity of the positioning tube 6, an active part 8 and a clamping part 9 are slidably connected in the positioning tube 6, one side of the top of the active part 8 is in contact with the bottom side of the clamping part 9, and a clamping part 9 is vertically slidably installed in the inner cavity of the pressing piece 5. The first snap plate 10 is snap-connected to the pressing member 9. To ensure that the vertical sliding of the first snap plate 10 is more accurate, a slide bar 18 is fixedly installed on the top of the first snap plate 10, and a columnar slide groove 19 slidably connected to the slide bar 18 is opened on the top of the pressing member 5. A first spring 11 is fixedly connected between the first snap plate 10 and the top of the inner cavity of the pressing member 5. A connecting rod 12f is rotatably installed on one side of the active member 8, and a driving rod 12e is rotatably installed on the end of the connecting rod 12f. A first cylinder 12a fixedly connected to the inner wall of the pressing member 5 is provided on the top of the driving rod 12e. The top of the first cylinder 12a is vertically slidably connected to the second cylinder 12b. A first liquid tank 12c1 is opened in the second cylinder 12b. The top of the first liquid tank 12c1 has a second liquid tank 12c1 with a diameter smaller than that of the first liquid tank 12c1. The top of the second liquid tank 12c2 has a third liquid tank 12c3 with the same diameter as the first liquid tank 12c1. The first liquid tank 12c1, the second liquid tank 12c2 and the third liquid tank 12c3 form a liquid storage tank 12c. The first liquid tank 12c1 is slidably connected with a piston 12d. The top of the driving rod 12e passes through the bottom of the first cylinder 12a and the second cylinder 12b and is fixedly connected to the piston 12d. The first liquid tank 12c1 also has a non-Newtonian liquid 12g. A second spring 15 is fixedly installed between the first cylinder 12a and the clamping member 9. The first cylinder 12a, the second cylinder 12b, the liquid storage tank 12c, the piston 12d, the driving rod 12e, the connecting rod 12f and the non-Newtonian liquid 12g constitute the driving assembly 12. The bottom of the pressing member 5 A first through hole 13 is opened, and two positioning plates 14c are passed through the first through hole 13. A first groove 14d1 and a second groove 14d2 are opened on opposite sides of the two positioning plates 14c. The first groove 14d1 and the second groove 14d2 constitute an annular slide groove 14d. A positioning rod 14b is slidably connected in the annular slide groove 14d. A swing rod 14a rotatably connected to the first buckle plate 10 is fixedly installed on the positioning rod 14b. The swing rod 14a, the positioning rod 14b, the positioning plate 14c and the annular slide groove 14d constitute a positioning assembly 14. A third spring 16 is fixedly installed between the bottom of the pressing member 5 and the bottom of the inner cavity of the mounting sleeve 4. A fourth spring 17 is fixedly installed between the first cylinder 12a and the active member 8. A second through hole 20 is also opened at the bottom of the pressing member 5.A second snap plate 21 fixedly connected to the bottom of the inner cavity of the installation sleeve 4 runs through the second through hole 20, and the second snap plate 21 is snap-connected to the bottom surface of the inner cavity of the pressing member 5; Installation steps: the staff holds the display screen body 2, aligns the installation rod 3 on the back of the display screen body 2 with the positioning tube 6, and then quickly presses the installation rod 3 into the positioning tube 6, and quickly releases it when it is pressed. When the installation rod 3 moves into the positioning tube 6, it will cooperate with the display screen body 2 to slide the positioning tube 6 and the pressing member 5 into the installation sleeve 4. At this time, the third spring 16 will be compressed, and the top column 7 will be inserted into the installation sleeve 4 to move the active member 8 laterally out of the positioning tube 6. The active member 8 will drive the connecting rod 12f, and the connecting rod 12f will drive the driving rod 12e. The driving rod 12e will drive the piston 12d to have a rapid upward trend in the first liquid tank 12c1. Because the first liquid tank 12c1 contains non-Newtonian liquid 12g, the piston 12d will drive the second tube 12b to rise rapidly in the first tube 12a when it has a rapid upward trend. The second tube 12b will drive the first snap plate 10 to rise, and the first snap plate 10 drives the sliding rod 18 to rise in the cylindrical slide groove 19, and the first spring When the first spring 11 is compressed, the active member 8 moves and the fourth spring 17 is also compressed. After the first snap plate 10 rises, it no longer holds the clamping member 9. Instead, the clamping member 9 fits the side wall of the active member 8. Because the rising distance of the first snap plate 10 is less than the descending distance of the pressing member 5 in the installation sleeve 4, the positioning rod 14b will slide from the top of the second groove 14d2 to the first groove 14d1. When the staff releases the display screen, the first spring 11 will drive the first snap plate 10 to press the second tube 12b Returning to the first tube 12a, the second spring 15 will drive the clamping member 9 to be inserted into the annular groove 22 outside the mounting rod 3, thereby fixing the display screen body 2 on the support frame 1, the fourth spring 17 will drive the active member 8 to reset, and the third spring 16 will drive the pressing member 5 to rise from the bottom of the mounting sleeve 4. When the pressing member 5 drives the swing rod 14a, and the swing rod 14a drives the positioning rod 14b to move into the first limiting groove 14d3, the pressing member 5 will no longer rise, and at this time, the surfaces of the display screen body 2 are all in the same plane; Disassembly steps: the staff does not need to carry the suction cup in the prior art, and can directly press the display screen body 2 to be replaced toward the installation sleeve 4 quickly until it can no longer be pressed. At this time, the bottom end of the positioning tube 6 contacts the bottom surface of the inner cavity of the installation sleeve 4, and the active member 8 drives the clamping member 9 to move toward the bottom of the first snap plate 10. At the same time, the active member 8 drives the connecting rod 12f, the connecting rod 12f drives the driving rod 12e, the driving rod 12e drives the piston 12d, and the piston 12d drives the second tube 12b to extend out of the first tube 12a through the non-Newtonian liquid 12g. The second tube 12b drives the first snap plate 10 to compress the first spring 11, and the positioning rod 14b moves from the first limit The first spring 11 will gradually release its elastic force, and the first spring 11 will drive the first snap plate 10 to descend. The first snap plate 10 will buckle the clamping member 9, and at the same time, the first snap plate 10 will drive the second cylinder 12b to move into the first cylinder 12a, and the piston 12d will slowly move upward from the first liquid tank 12c1, thereby gradually squeezing the non-Newtonian liquid 12g into the third liquid tank 12c3 through the second liquid tank 12c2. When the first snap plate 10 descends, it will also drive the swing rod 14a, and the swing rod 14a will drive the positioning rod 14b from the first slot 14d1. Continue to descend into the second groove 14d2. After a while, the staff gradually releases their hands and stops pressing the display body 2. Since the clamping member 9 is clamped by the first clamping plate 10, the second spring 15 will not be able to drive the clamping member 9 to reset. At this time, the clamping member 9 will no longer be inserted into the annular groove 22 on the mounting rod 3, and the fourth spring 17 will directly drive the active member 8 to reset. The active member 8 will gradually drive the piston 12d to absorb the non-Newtonian liquid 12g in the third liquid tank 12c3 back into the first liquid tank 12c1 through the connecting rod 12f and the driving rod 12e. The third spring 16 will drive the pressing member 5 to slide outside the mounting sleeve 4, and the sliding rod 18 will move from the third spring 17 to the fourth spring 17. The pressing member 5 will slide in the second groove 14d2 to the second limiting groove 14d4. At this time, the second snap plate 21 will also snap onto the bottom surface of the inner cavity of the pressing member 5 to prevent the pressing member 5 from completely sliding out of the mounting sleeve 4. Because of the distance between the first limiting groove 14d3 and the second limiting groove 14d4, the pressing member 5 will cause the display screen body 2 to be replaced to protrude a certain distance higher than the display interface composed of the surfaces of other display screen bodies 2. In addition, the clamping member 9 no longer clamps the mounting rod 3. Therefore, the user can directly remove the protruding display screen body 2 by hand without using a suction cup to pull out the display screen body 2 as in the prior art.

[0022] It is important to note that the construction and arrangement of the present application shown in a number of different exemplary embodiments are exemplary only. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, colors, changes in orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application.

Claims

1. A splicable LED display screen, which is used to be detachably mounted on a support frame (1), comprising a display screen body (2), characterized in that: The four corners of the back of the display screen are fixedly installed with mounting rods (3), and the support frame (1) is fixedly installed with a mounting sleeve (4) corresponding to the mounting rod (3). A pressing piece (5) is slidably connected in the mounting sleeve (4), and a positioning tube (6) is passed through and fixedly installed in the pressing piece (5). The mounting rod (3) is slidably connected to the inner cavity of the positioning tube (6), and the bottom of the inner cavity of the positioning tube (6) is slidably connected to a top column (7) fixedly connected to the inner cavity of the mounting sleeve (4). An active part (8) and a clamping part (9) are slidably connected in the positioning tube (6), and the top side of the active part (8) is in contact with the bottom side of the clamping part (9). The top of the inner cavity of the pressing piece (5) is vertically slidably installed with a clamping part (9) fixedly connected to the inner cavity of the clamping part (9). A first snap plate (10) is snap-connected to the fastening member (9); a first spring (11) is fixedly connected between the first snap plate (10) and the top of the inner cavity of the pressing member (5); a driving component (12) is installed between the first snap plate (10) and the active member (8); a first through hole (13) is opened at the bottom of the pressing member (5); a positioning component (14) penetrating the first through hole (13) is installed between the first snap plate (10) and the bottom surface of the inner cavity of the mounting sleeve (4); a second spring (15) is fixedly installed between the clamping member (9) and the driving component (12); and a third spring (16) is fixedly installed between the bottom of the pressing member (5) and the bottom of the inner cavity of the mounting sleeve (4).

2. The LED display screen that can be spliced ​​and combined according to claim 1 is characterized in that: The driving assembly (12) comprises a first cylinder (12a) fixedly connected to the inner wall of the pressing member (5), a second cylinder (12b) vertically slidably mounted on the top of the first cylinder (12a), a liquid storage tank (12c) provided in the second cylinder (12b), a piston (12d) slidably connected in the liquid storage tank (12c), a driving rod (12e) fixedly connected to the bottom of the piston (12d) and passing through the bottom of the first cylinder (12a) and the bottom of the second cylinder (12b), and a connecting rod (12f) rotatably mounted between the driving rod (12e) and the active member (8), the liquid storage chamber is filled with a non-Newtonian liquid (12g), the end of the second spring (15) is fixedly connected to the outer wall of the first cylinder (12a), and the top surface of the second cylinder (12b) is in contact with the bottom surface of the first snap plate (10).

3. The LED display screen that can be spliced ​​and combined according to claim 2 is characterized in that: The liquid storage tank (12c) comprises a first liquid tank (12c1) slidably connected to the piston (12d), a second liquid tank (12c2) connected to the top of the first liquid tank (12c1), and a third liquid tank (12c3) connected to the top of the second liquid tank (12c2), the diameter of the second liquid tank (12c2) is smaller than that of the first liquid tank (12c1) and the third liquid tank (12c3), the diameters of the first liquid tank (12c1) and the second liquid tank (12c2) are the same, and the non-Newtonian liquid (12g) is located in the first liquid tank (12c1).

4. The LED display screen that can be spliced ​​and combined according to claim 2 is characterized in that: The positioning assembly (14) comprises a swing rod (14a) rotatably connected to both sides of the first snap plate (10), a positioning rod (14b) fixedly mounted at the ends of the two swing rods (14a), a positioning plate (14c) fixedly connected to the bottom of the inner cavity of the mounting platform, and an annular sliding groove (14d) provided in the positioning plate (14c).

5. The LED display screen that can be spliced ​​and combined according to claim 4 is characterized in that: The annular sliding groove (14d) comprises a first groove (14d1) and a second groove (14d2); the first groove (14d1) has a first limiting groove (14d3) at the top end, and the second groove (14d2) has a second limiting groove (14d4) at the top end; when the positioning rod (14b) is located in the first limiting groove (14d3), the clamping member (9) is in contact with the surface of the mounting rod (3); when the positioning rod (14b) is located in the second limiting groove (14d4), the clamping member (9) does not contact the surface of the mounting rod (3).

6. The LED display screen that can be spliced ​​and combined according to claim 5 is characterized in that: The positioning rod (14b) is located at the bottom end of the second groove (14d2), and when the bottom surface of the first snap plate (10) contacts the top surface of the first tube (12a), the first snap plate (10) is engaged with the clamping member (9), and the clamping member (9) is not in contact with the mounting rod (3).

7. The LED display screen that can be spliced ​​and combined according to claim 2 is characterized in that: A fourth spring (17) is fixedly mounted between the first cylinder (12a) and the active member (8).

8. The LED display screen that can be spliced ​​and combined according to claim 1 is characterized in that: A slide bar (18) is fixedly mounted on the top of the first snap plate (10), and a columnar slide groove (19) is formed on the top of the pressing member (5) and is slidably connected to the slide bar (18).

9. The LED display screen that can be spliced ​​and combined according to claim 1 is characterized in that: The bottom of the pressing piece (5) is also provided with a second through hole (20), and a second snap plate (21) fixedly connected to the bottom of the inner cavity of the mounting sleeve (4) passes through the second through hole (20), and the second snap plate (21) is snap-connected to the bottom surface of the inner cavity of the pressing piece (5).

10. The LED display screen that can be spliced ​​and combined according to claim 1, characterized in that: An annular groove (22) is formed on the outer peripheral surface of the mounting rod (3), and the clamping member (9) is inserted into the annular groove (22) and slidably connected thereto.

Images