LED display screen capable of being spliced

Abstract

The LED display screen comprises an LED display screen body, a main hollow back frame and an auxiliary hollow back frame, the main hollow back frame and the auxiliary hollow back frame are fixed to the two sides of the back face of the LED display screen body respectively, a first spring bolt and a second spring bolt are rotationally installed at the two ends of the surface of the main hollow back frame respectively, and positioning holes are formed in one end of the surface of the first spring bolt and one end of the surface of the second spring bolt respectively. The outer wall of the side, away from the main hollow back frame, of the auxiliary hollow back frame is provided with a hollow part allowing the first spring bolt and the second spring bolt to enter in a rotating and swinging mode, and the two ends of the surface of the auxiliary hollow back frame are each provided with a spring positioning pin used for being connected with the corresponding positioning hole in an inserted mode. Two adjacent LED display screens can be connected more rapidly and conveniently, locking and unlocking of the spring bolts can be rapidly achieved by manually controlling the double-toothed-plate opposite pushing rotating structure, operation is easy and convenient, extra professional equipment or technical support is not needed, complex power supply and control are not needed, and disassembly and assembly time is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of LED display screens, and particularly relates to a splicable LED display screen. Background Technique

[0002] The LED splicing display screen is a multifunctional large display device, which is widely used in various public places, such as squares, shopping malls, stadiums, etc. Its functions include information transmission, advertising promotion, entertainment display and stage background. Its structure mainly consists of an LED module, a power supply system, a control system, a support structure, a heat dissipation system and a housing. The LED module is the core component, which is fixed on the support and connected by connecting wires to form the picture of the entire display screen. The control system sets the display content and brightness, while the housing protects the internal components from the outside. The splicing principle is simple, including steps such as LED module installation, connecting wire connection, control system setting, housing installation, and debugging and testing;

[0003] For example, a splicable LED display screen module unit disclosed in the authorized announcement number CN219162945U includes an LED display screen module unit board and a fixing mechanism; LED display screen module unit board: a connection seat is arranged in the middle of the upper end thereof, an installation groove is arranged inside the connection seat, and an installation post is arranged on the front side inside the installation groove; Fixing mechanism: It is arranged inside the installation groove, and the fixing mechanism is respectively slidably connected to the left and right sides of the outer arc surface of the installation post, etc. Its mounting plate drives the top post to move towards the end away from the center inside the connection seat, and the spring contracts. At this time, the distance between the top post and the inner wall of the installation frame gradually decreases, and finally the top post is pressed against the inner wall of the installation frame through a rubber pad, so as to realize the installation and fixation of the LED display screen module unit board. However, in this technical solution, structures such as control switches and motors are required to move structures such as the top post and the rubber pad. Therefore, the disassembly and recombination process of this LED splicing display screen requires continuous power supply to drive structures such as control switches and motors. Once a power outage occurs externally, these structures cannot work properly, resulting in difficulties in completing disassembly and recombination work, which may cause equipment damage or operation interruption. Content of the Utility Model

[0004] The purpose of the utility model is to provide a splicable LED display screen, in which main and auxiliary hollow back frames are added to the back of the LED display screen, and a lock tongue capable of connecting and locking with the auxiliary hollow back frame is installed on the main hollow back frame, and the deflection of the lock tongue is manually controlled by a double-tooth plate opposing pushing and rotating structure. To solve the problems raised in the above background technique.

[0005] To achieve the above object, the present utility model provides the following technical solutions: A splicable LED display screen, including the LED display screen body and the main hollow back frame and the auxiliary hollow back frame respectively fixed on both sides of the back of the LED display screen body. At both ends of the surface of the main hollow back frame, a first locking tongue and a second locking tongue are respectively rotatably installed. At one end of the surfaces of the first locking tongue and the second locking tongue, positioning holes are provided. On the outer wall of the side of the auxiliary hollow back frame away from the main hollow back frame, a hollow part is provided for the first locking tongue and the second locking tongue to swing and enter. At both ends of the surface of the auxiliary hollow back frame, spring positioning pins for inserting into the positioning holes are installed. Inside the main hollow back frame, a double-toothed plate oppositely pushing and rotating structure for driving the first locking tongue and the second locking tongue to swing synchronously and in opposite directions is installed. At one end of the surface of the main hollow back frame, a sliding button for driving the double-toothed plate oppositely pushing and rotating structure to act is installed.

[0006] Preferably, a rectangular sliding groove is opened on the surface of the main hollow back frame, and the sliding button is slidably installed in the rectangular sliding groove. One end of the sliding button passes through the rectangular sliding groove and a connecting seat is installed.

[0007] Preferably, both the first locking tongue and the second locking tongue are made of stainless steel components, and the thickness of the first locking tongue and the second locking tongue is 0.5 cm to 1 cm.

[0008] Preferably, the double-toothed plate oppositely pushing and rotating structure includes a first tooth column and a second tooth column rotatably installed at both ends inside the main hollow back frame. The double-toothed plate oppositely pushing and rotating structure also includes a central tooth column rotatably installed at the central position inside the main hollow back frame. On both sides of the central tooth column, there are double-sided tooth plates one and two that are centrally mirror-symmetrical. The double-sided tooth plates one and two are slidably installed inside the main hollow back frame. The double-sided tooth plate one meshes with the first tooth column and the central tooth column, and the double-sided tooth plate two meshes with the second tooth column and the central tooth column.

[0009] Preferably, the top end of the first tooth column penetrates to the outside of the main hollow back frame and is fixedly connected to the back surface of the first locking tongue. One end of the back surface of the second locking tongue is fixed with a driven shaft. One end of the driven shaft extends into the main hollow back frame and is rotatably connected to the inner wall of one side of the main hollow back frame. A crawler transmission structure for power connection is installed between the driven shaft and the second tooth column.

[0010] Preferably, a rectangular cut-out part is provided on the outer wall of one side of the double-sided tooth plate two, and the rectangular cut-out part is for the crawler transmission structure to act.

[0011] Preferably, a spiral spring is installed on one side of the top of the main hollow back frame, and one end of the spiral spring is fixedly connected to the top end of the connecting seat.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows: The splicable LED display screen is provided with structures such as a first locking tongue and a double-tooth plate opposing pushing and rotating structure that cooperate with each other. The locking tongue structure formed by the first locking tongue, the second locking tongue, and the spring positioning pin makes the connection between adjacent two LED display screens faster and more convenient. By manually controlling the double-tooth plate opposing pushing and rotating structure, the locking and unlocking of the locking tongue can be quickly achieved. The operation is simple and convenient, without the need for additional professional equipment or technical support, and without complex power supply and control, saving disassembly and assembly time and improving the assembly efficiency of the display screen by the staff. Brief Description of the Drawings

[0013] Figure 1 Schematic three-dimensional structure of the present utility model Figure One ;

[0014] Figure 2 Schematic three-dimensional structure of the present utility model Figure Two ;

[0015] Figure 3 Schematic three-dimensional structure of the present utility model Figure Three ;

[0016] Figure 4 Schematic rear view structure of the present utility model;

[0017] Figure 5 Schematic three-dimensional structure of the main hollow back frame of the present utility model;

[0018] Figure 6 Schematic structure diagram of the splicing state of the LED display screen body of the present utility model;

[0019] Figure 7 Schematic three-dimensional structure of the double-sided tooth plate two of the present utility model

[0020] In the figure: 1. LED display screen body; 2. Main hollow back frame; 3. Sub-hollow back frame; 4. Hollowed-out part; 5. Spring positioning pin; 6. Slide button; 7. First locking tongue; 8. Second locking tongue; 801. Driven shaft; 802. Track transmission structure; 9. Positioning hole; 10. Double-tooth plate opposing pushing and rotating structure; 1001. Central tooth column; 1002. Double-sided tooth plate one; 1003. Double-sided tooth plate two; 1004. Second tooth column; 1005. First tooth column; 11. Helical spring. Detailed Description of the Embodiment

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] Please refer to Figures 1-7 Figures 1-7 , an embodiment provided by the present utility model: a spliceable LED display screen, including an LED display screen body 1 and a main hollow back frame 2 and a secondary hollow back frame 3 respectively fixed on both sides of the back of the LED display screen body 1. At both ends of the surface of the main hollow back frame 2, a first locking tongue 7 and a second locking tongue 8 are respectively rotatably installed. At one end of the surfaces of the first locking tongue 7 and the second locking tongue 8, positioning holes 9 are provided. Both the first locking tongue 7 and the second locking tongue 8 are made of stainless steel components, and the thickness of the first locking tongue 7 and the second locking tongue 8 is 0.5 cm to 1 cm;

[0023] On the outer wall of the secondary hollow back frame 3 away from the main hollow back frame 2, there is a hollowed-out part 4 for the first locking tongue 7 and the second locking tongue 8 to swing into. At both ends of the surface of the secondary hollow back frame 3, spring positioning pins 5 for inserting into the positioning holes 9 are installed. Inside the main hollow back frame 2, there is a double-tooth plate oppositely-pushing and rotating structure 10 for driving the first locking tongue 7 and the second locking tongue 8 to swing synchronously and in opposite directions. At one end of the surface of the main hollow back frame 2, a sliding button 6 for driving the double-tooth plate oppositely-pushing and rotating structure 10 to act is installed;

[0024]

[0023] A rectangular sliding groove is formed on the surface of the main hollow back frame 2. The sliding button 6 is slidably installed in the rectangular sliding groove. One end of the sliding button 6 passes through the rectangular sliding groove and is installed with a connecting seat, and the sliding stability of the sliding button 6 is improved through the rectangular sliding groove;

[0025] The double-tooth plate oppositely-pushing and rotating structure 10 includes a first tooth column 1005 and a second tooth column 1004 rotatably installed at both ends inside the main hollow back frame 2. The double-tooth plate oppositely-pushing and rotating structure 10 further includes a central tooth column 1001 rotatably installed at the central position inside the main hollow back frame 2. On both sides of the central tooth column 1001, there are double-sided tooth plates one 1002 and double-sided tooth plates two 1003 that are centrally mirror-symmetrical. The double-sided tooth plates one 1002 and the double-sided tooth plates two 1003 are slidably installed inside the main hollow back frame 2. The double-sided tooth plates one 1002 are meshed with the first tooth column 1005 and the central tooth column 1001, and the double-sided tooth plates two 1003 are meshed with the second tooth column 1004 and the central tooth column 1001. When an operator operates the swinging of the first locking tongue 7 and the second locking tongue 8, by driving the double-sided tooth plates one 1002 to move downward through the sliding button 6, the double-sided tooth plates one 1002 drive the first tooth column 1005 and the first locking tongue 7 to swing through the tooth grooves on their own plate surfaces;

[0026] The top end of the first tooth column 1005 penetrates to the outside of the main hollow back frame 2 and is fixedly connected to the back surface of the first locking tongue 7. One end of the back surface of the second locking tongue 8 is fixedly provided with a driven shaft 801. One end of the driven shaft 801 extends into the main hollow back frame 2 and is rotatably connected to one side inner wall of the main hollow back frame 2. A track transmission structure 802 for power connection is installed between the driven shaft 801 and the second tooth column 1004;

[0027] Since the double-sided tooth plate one 1002 is connected to the double-sided tooth plate two 1003 through the central tooth column 1001, the double-sided tooth plate two 1003 will move upward under the drive of the central tooth column 1001, and the double-sided tooth plate two 1003 drives the second tooth column 1004 to rotate. At this time, the rotation directions of the second tooth column 1004 and the first tooth column 1005 are opposite. Finally, the second tooth column 1004 drives the driven shaft 801 and the second locking tongue 8 to rotate through the track transmission structure 802, so as to realize the synchronous reverse swing function of the first locking tongue 7 and the second locking tongue 8. This structure is simple and the work is stable and reliable. The first locking tongue 7 and the second locking tongue 8 can ensure the tight connection between the two LED display screens with the cooperation of the spring positioning pin 5, and are not easy to loosen or fall off;

[0028] A rectangular cutting part is arranged on one side outer wall of the double-sided tooth plate two 1003, and the rectangular cutting part is for the track transmission structure 802 to act;

[0029] A spiral spring 11 is installed on one side of the top of the main hollow back frame 2. One end of the spiral spring 11 is fixedly connected to the top end of the connecting seat. When the staff wants to disconnect the connection between the two LED display screen bodies 1, only need to pull the spring positioning pin 5 so that the pin end of the spring positioning pin 5 exits from the positioning hole 9. Then the spiral spring 11 starts to reset from the stretched state, that is, the spiral spring 11 pulls the slide button 6 and the double-sided tooth plate one 1002 upward, so that the first locking tongue 7 and the second locking tongue 8 are reset. Its connection and disassembly process is simple, and maintenance personnel can perform maintenance, replacement or adjustment of the LED display screen more easily.

[0030] When the embodiment of the present application is in use, first, the staff takes out two LED display body 1 to be connected, makes the main hollow back frame 2 and the secondary hollow back frame 3 on the back of the two LED display body 1 face each other, and keeps the screen surfaces of the two LED display body 1 parallel and coincident. And the staff pre-pulls the spring positioning pin 5 in advance, so that the pin end of the spring positioning pin 5 retracts into its own housing. Subsequently, the staff manually slides the sliding button 6, so that the sliding button 6 slides downward in the vertical direction. At this time, the sliding button 6 will drive the double-tooth plate opposing pushing and rotating structure 10 to act. The double-tooth plate opposing pushing and rotating structure 10 makes the first locking tongue 7 and the second locking tongue 8 swing synchronously and reversely until the first locking tongue 7 and the second locking tongue 8 swing to the horizontal state, and the ends of the first locking tongue 7 and the second locking tongue 8 with the positioning holes 9 will enter the secondary hollow back frame 3 through the hollow part 4. After the ends of the first locking tongue 7 and the second locking tongue 8 swing into the secondary hollow back frame 3, the staff releases the spring positioning pin 5, then the pin end of the spring positioning pin 5 passes through the positioning hole 9 under the action of elastic force, so as to lock the first locking tongue 7 and the second locking tongue 8 by using the spring positioning pin 5. At this time, the locking connection between the two LED display body 1 is completed. The display introduces the locking tongue structure formed by the first locking tongue 7, the second locking tongue 8 and the spring positioning pin 5, which makes the connection between adjacent two LED displays faster and more convenient. By manually controlling the double-tooth plate opposing pushing and rotating structure 10, the locking and unlocking of the locking tongue can be quickly realized. The operation is simple and convenient, without the need for additional professional equipment or technical support, and without complex power supply and control, saving the disassembly and assembly time and improving the assembly efficiency of the staff for the display screen.

Claims

1. A spliceable LED display screen, characterized in that: It includes an LED display body (1), a main hollow back frame (2) and a secondary hollow back frame (3) fixedly installed on both sides of the back of the LED display body (1). At both ends of the surface of the main hollow back frame (2), a first locking tongue (7) and a second locking tongue (8) are rotatably installed respectively. At one end of the surfaces of the first locking tongue (7) and the second locking tongue (8), positioning holes (9) are provided. On the outer wall of the side of the secondary hollow back frame (3) away from the main hollow back frame (2), a hollow-out part (4) is provided for the first locking tongue (7) and the second locking tongue (8) to swing and enter. At both ends of the surface of the secondary hollow back frame (3), spring positioning pins (5) for inserting into the positioning holes (9) are installed. Inside the main hollow back frame (2), a double-tooth plate oppositely pushing and rotating structure (10) for driving the first locking tongue (7) and the second locking tongue (8) to swing synchronously and in opposite directions is installed. At one end of the surface of the main hollow back frame (2), a sliding button (6) for driving the double-tooth plate oppositely pushing and rotating structure (10) to act is installed.

2. The splicable LED display screen according to claim 1, wherein: A rectangular sliding groove is formed on the surface of the main hollow back frame (2), and the sliding button (6) is slidably installed in the rectangular sliding groove. One end of the sliding button (6) passes through the rectangular sliding groove and a connecting seat is installed.

3. The splicable LED display screen according to claim 1, characterized in that: Both the first locking tongue (7) and the second locking tongue (8) are made of stainless steel components, and the thickness of the first locking tongue (7) and the second locking tongue (8) is 0.5 cm to 1 cm.

4. A splicable LED display screen according to claim 1, characterized in that: The double-tooth plate oppositely pushing and rotating structure (10) includes a first tooth column (1005) and a second tooth column (1004) rotatably installed at both ends inside the main hollow back frame (2). The double-tooth plate oppositely pushing and rotating structure (10) also includes a central tooth column (1001) rotatably installed at the central position inside the main hollow back frame (2). On both sides of the central tooth column (1001), there are double-sided tooth plates one (1002) and double-sided tooth plates two (1003) that are centrally mirror-symmetrical. The double-sided tooth plates one (1002) and the double-sided tooth plates two (1003) are slidably installed inside the main hollow back frame (2). The double-sided tooth plates one (1002) are meshed with the first tooth column (1005) and the central tooth column (1001), and the double-sided tooth plates two (1003) are meshed with the second tooth column (1004) and the central tooth column (1001).

5. The splicable LED display according to claim 4, wherein: The top end of the first tooth column (1005) penetrates to the outside of the main hollow back frame (2) and is fixedly connected to the back of the first locking tongue (7). One end of the back of the second locking tongue (8) is fixedly provided with a driven shaft (801). One end of the driven shaft (801) extends into the main hollow back frame (2) and is rotatably connected to one inner wall of the main hollow back frame (2). A track transmission structure (802) for power connection is installed between the driven shaft (801) and the second tooth column (1004).

6. The splicable LED display according to claim 5, wherein: A rectangular cut-out part is provided on the outer wall of one side of the double-sided tooth plate two (1003), and the rectangular cut-out part allows the track transmission structure (802) to act.

7. The splicable LED display screen according to claim 2, wherein: On one side of the top of the main hollow back frame (2), a spiral spring (11) is installed. One end of the spiral spring (11) is fixedly connected to the top end of the connecting seat.

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