Clamping assembly and LED display device

Abstract

This utility model discloses a snap-fit ​​assembly and an LED display device, relating to the field of display device technology. The snap-fit ​​assembly is used to snap a display module onto a frame assembly. The snap-fit ​​assembly includes a mounting bracket and a limiting shaft. The limiting shaft is rotatably connected to the mounting bracket and has a limiting portion protruding from the periphery of the mounting bracket. This utility model solution facilitates the rapid disassembly of the display module, thereby improving maintenance efficiency.

Description

Technical Field

[0001] This utility model relates to the field of display device technology, and in particular to a snap-fit ​​component and an LED display device. Background Technology

[0002] LED (Light Emitting Diode) displays are display devices made of LEDs. By controlling the brightness and color combination of LEDs, they can display text, images, videos, and other content, and are widely used in commercial window displays and other fields.

[0003] In related technologies, when a display module malfunctions, it needs to be removed from the rack assembly for replacement or repair. Therefore, how to achieve rapid disassembly of the display module to improve maintenance efficiency is one of the key research focuses for those in this field. Utility Model Content

[0004] The main purpose of this invention is to provide a snap-fit ​​assembly and an LED display device, which aims to enable quick disassembly of the display module to improve maintenance efficiency.

[0005] To achieve the above objectives, this utility model proposes a snap-fit ​​assembly designed to enable quick disassembly of the display module, thereby improving maintenance efficiency.

[0006] In one embodiment, the snap-fit ​​assembly includes a mounting bracket and a limiting shaft, the limiting shaft being rotatably connected to the mounting bracket and having a limiting portion protruding from the periphery of the mounting bracket.

[0007] In one embodiment, the mounting bracket has a limiting cavity, the limiting shaft passes through the limiting cavity, and a stop portion is provided on the periphery of the limiting cavity. The stop portion is axially limited to the cavity wall of the limiting cavity so that the limiting shaft can rotate circumferentially.

[0008] In one embodiment, the limiting cavity has a first through hole through which the limiting shaft passes. An angled protrusion protrudes from the sidewall of the first through hole, and a rotating protrusion protrudes from the circumference of the limiting shaft passing through the first through hole. The angled protrusion and the rotating protrusion are circumferentially limitingly engaged. Alternatively, a helical portion protrudes from the circumference of the limiting shaft passing through the first through hole, and the rotating protrusion is located on the circumference of the helical portion.

[0009] In one embodiment, the mounting bracket includes a connecting seat and a baffle. A stop groove is recessed on one side of the connecting seat, and the baffle covers the stop groove to enclose and form a limiting cavity.

[0010] In one embodiment, the connecting seat is further recessed to form an installation groove on the same side as the stop groove, and the periphery of the baffle is provided with an installation protrusion. When the baffle covers the stop groove, the installation protrusion is inserted into the installation groove.

[0011] In one embodiment, the connecting seat includes a seat plate and two connecting plates, the two connecting plates being disposed on both sides of the seat plate, and the seat plate being bent to one side to form the stop groove.

[0012] In one embodiment, each of the two connecting plates has a connecting hole for fasteners to pass through in order to install the connecting plate.

[0013] In one embodiment, the number of limiting parts is provided in multiples, and the multiple limiting parts are spaced apart on the limiting shaft.

[0014] In one embodiment, the end face of the limiting shaft is recessed with a moving groove, which is used for inserting a transmission component to drive the limiting shaft to rotate.

[0015] In one embodiment, the present invention also provides an LED display device, the LED display device including a frame assembly, a display module and a snap-fit ​​assembly as described above, the frame assembly having a mounting hole, the display module being disposed on one side of the frame assembly and having a storage cavity, the cavity wall of the storage cavity having a first clearance hole; the mounting bracket being connected to the inner wall of the storage cavity, the limiting shaft being sequentially inserted through the first clearance hole and the mounting hole, and rotating the limiting part to snap-fit ​​onto the frame assembly.

[0016] In the technical solution of this utility model, when it is necessary to install the display module onto the rack assembly, firstly, the limiting shaft is rotatably connected to the mounting bracket, and then the mounting bracket is connected to the display module, so that one end of the limiting shaft with the limiting part passes through the mounting hole of the rack assembly. Then, the limiting shaft is rotated, and the limiting part is axially limited and engaged with the edge of the mounting hole opening to prevent the limiting shaft from coming out of the mounting hole, thereby fixing the display module onto the rack assembly. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the structure of an embodiment of the LED display device provided by this utility model;

[0019] Figure 2 for Figure 1 The diagram shows a rear view of the LED display device.

[0020] Figure 3 for Figure 2 The diagram shows the structure of the hidden cover of the LED display device.

[0021] Figure 4 for Figure 3 A magnified view of a section at point A in the middle;

[0022] Figure 5 for Figure 3 A schematic diagram of the exploded structure;

[0023] Figure 6 for Figure 5 Schematic diagram of the mid-rack assembly;

[0024] Figure 7 for Figure 6 Schematic diagram of the structure of the central storage shell;

[0025] Figure 8 for Figure 7 A schematic diagram of the storage shell from another perspective;

[0026] Figure 9 for Figure 5 A schematic diagram of the structure of a display module;

[0027] Figure 10 for Figure 9 A magnified view of a section at point B in the middle;

[0028] Figure 11 for Figure 10 Schematic diagram of the middle cover shell;

[0029] Figure 12 for Figure 10 A schematic diagram of the hidden cover structure;

[0030] Figure 13 for Figure 12 A schematic diagram of the structure of the card connector assembly;

[0031] Figure 14 for Figure 13 An exploded view of the snap-fit ​​assembly shown.

[0032] Figure 15 for Figure 14 Schematic diagram of the middle baffle;

[0033] Figure 16 for Figure 14 Schematic diagram of the middle limit shaft;

[0034] Figure 17 for Figure 14 A schematic diagram of the structure of the center plate.

[0035] Reference numerals: 10. LED display device; 1. Rack assembly; 11. Frame; 13. Storage shell; 131. Storage slot; 133. First storage layer; 1331. Mounting hole; 1333. Positioning hole; 1335. First clearance hole; 1336. Second clearance hole; 135. Second storage layer; 1351. Cable guide; 1355. Block plate; 136. Partition plate; 137. Receiving part; 15. Cover shell; 17. Lifting ring; 3. Display module; 31. Carrier plate; 311. Through hole; 33. Control module; 331. Control shell; 3311. First clearance hole; 3312. Second clearance hole; 3313. First fixing hole; 3314. Second fixing hole; 3315. Third fixing hole; 333. Power supply. 334. Network cable interface; 335. Light guide; 336. Switch; 337. Adapter; 35. LED bead; 36. Handle; 5. Snap-fit ​​assembly; 51. Mounting bracket; 511. Connecting seat; 5111. Seat plate; 51111. Stop groove; 51113. Second through hole; 51115. Mounting groove; 5113. Connecting plate; 51131. Connecting hole; 5115. Limiting cavity; 513. Baffle; 5131. First through hole; 51311. Angle protrusion; 5133. Mounting protrusion; 53. Limiting shaft; 531. Limiting part; 533. Spiral part; 5331. Rotating protrusion; 535. Stop part; 537. Toggle groove; 55. Positioning component; 61. Power supply; 63. Input end.

[0036] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0038] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0039] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0040] LED (Light Emitting Diode) displays are display devices made of LEDs. By controlling the brightness and color combination of LEDs, they can display text, images, videos, and other content, and are widely used in commercial window displays and other fields.

[0041] In related technologies, when a display module malfunctions, it needs to be removed from the rack assembly for replacement or repair. Therefore, how to achieve rapid disassembly of the display module to improve maintenance efficiency is one of the key research focuses for those in this field.

[0042] To address the aforementioned issues, this utility model proposes a snap-fit ​​component 5, which aims to enable quick disassembly of the display module 3, thereby improving maintenance efficiency.

[0043] Reference Figures 1 to 17 In one embodiment of the present invention, the snap-fit ​​assembly 5 includes a mounting bracket 51 and a limiting shaft 53. The limiting shaft 53 is rotatably connected to the mounting bracket 51, and a limiting portion 531 protrudes from the periphery of the mounting bracket 51.

[0044] The snap-fit ​​component 5 is used to engage the display module 3 with the frame assembly 1. The frame assembly 1 has a mounting hole 1331. The snap-fit ​​component 5 includes a mounting bracket 51 and a limiting shaft 53. The mounting bracket 51 is connected to the display module 3. The mounting bracket 51 can be considered as part of the display module 3. The limiting shaft 53 is directly rotatably connected to the display module 3. Generally, the outer diameter of one end of the limiting part 531 of the limiting shaft 53 is larger than the maximum diameter of the mounting hole 1331. The mounting hole 1331 is configured to facilitate the passage and snap-fit ​​of the limiting shaft 53, so that after the limiting shaft 53 passes through the mounting hole 1331, it rotates 90°, preventing the limiting shaft 53 from falling out of the mounting hole 1331.

[0045] In the technical solution of this utility model, when it is necessary to install the display module 3 onto the rack assembly 1, firstly, the limiting shaft 53 is rotatably connected to the mounting bracket 51, and then the mounting bracket 51 is connected to the display module 3, so that one end of the limiting shaft 53 with the limiting part 531 passes through the mounting hole 1331 of the rack assembly 1. Then, the limiting shaft 53 is rotated, and the limiting part 531 is axially limited and engaged with the edge of the opening of the mounting hole 1331 to prevent the limiting shaft 53 from coming out of the mounting hole 1331, thereby fixing the display module 3 onto the rack assembly 1.

[0046] Therefore, this installation method is quick to operate, and the LED display device 10 is relatively thin and light, which can expose the carrier board 31 as much as possible, making the top and bottom bezels of the LED display device 10 very narrow, which is conducive to further increasing the display area of ​​the LED.

[0047] Reference Figures 13 to 17 In one embodiment of the present invention, the mounting bracket 51 is provided with a limiting cavity 5115, the limiting shaft 53 passes through the limiting cavity 5115, and a stop portion 535 is provided on the circumferential side of the limiting cavity 5115. The stop portion 535 is axially limited to the cavity wall of the limiting cavity 5115 so that the limiting shaft 53 can rotate circumferentially.

[0048] In this embodiment, the stop portion 535 is axially restricted by the cavity wall of the limiting cavity 5115, allowing the limiting shaft 53 to rotate circumferentially within the limiting cavity 5115 and ensuring that the limiting shaft 53 will not fall off the mounting bracket 51. This rotation method relies solely on the cooperation of the limiting structure without the need for other auxiliary components, facilitating the rapid rotation and installation of the limiting shaft 53 onto the mounting bracket 51, thereby improving work efficiency.

[0049] Reference Figure 15 and Figure 16 In one embodiment of this utility model, the limiting cavity 5115 is provided with a first through hole 5131 for the limiting shaft 53 to pass through. An angled protrusion 51311 protrudes from the side wall of the first through hole 5131. The limiting shaft 53 passes through the first through hole 5131 and a rotating protrusion 5331 protrudes from its circumference. The angled protrusion 51311 and the rotating protrusion 5331 are circumferentially limitingly engaged. Alternatively, the limiting shaft 53 passes through the first through hole 5131 and a spiral portion 533 protrudes from its circumference, with the rotating protrusion 5331 located on the circumference of the spiral portion 533.

[0050] In this embodiment, when the limiting shaft 53 passes through the first through hole 5131 on the mounting bracket 51, the protrusion on the side wall of the first through hole 5131 cooperates with the rotating protrusion 5331 at the through point on the limiting shaft 53, circumferentially limiting the position of the limiting shaft 53, so that the limiting shaft 53 can only rotate within a certain angle range, thereby controlling the rotation angle of the limiting shaft 53 to achieve accurate matching between the limiting part 531 and the opening edge of the mounting hole 1331. For example, the number of circumferentially arranged angle protrusions 51311 is set to 4, and the rotating protrusion 5331 is arranged between two angle protrusions 51311, so that the limiting shaft 53 can only rotate within a 90° range.

[0051] In addition, the design of the spiral part 533 and the rotating protrusion 5331 at the through-hole of the limiting shaft 53 also plays a circumferential limiting role for the limiting shaft 53. When the limiting shaft 53 is rotated, the spiral part 533 will cause the limiting shaft 53 to rotate according to a certain pattern, thereby achieving precise engagement or disengagement between the limiting part 531 and the mounting hole 1331.

[0052] Reference Figure 15 and Figure 17 In one embodiment of the present invention, the mounting bracket 51 includes a connecting seat 511 and a baffle 513. A stop groove 51111 is recessed on one side of the connecting seat 511, and the baffle 513 covers the stop groove 51111 to form a limiting cavity 5115.

[0053] The connector 511 is used to connect to the display module 3.

[0054] In this embodiment, a limiting cavity 5115 is formed by enclosing the shaft, providing a spatial structure for the installation and rotation of the limiting shaft 53. Furthermore, this split-type mounting bracket 51 structure facilitates manufacturing and assembly, and can be adjusted according to different display module 3 sizes, improving the versatility and flexibility of the snap-fit ​​assembly 5.

[0055] Reference Figure 15 and Figure 17 In one embodiment of the present invention, the connecting seat 511 is further recessed and formed with an installation groove 51115 on the same side as the stop groove 51111. The baffle 513 is provided with an installation protrusion 5133 on its periphery. When the baffle 513 covers the stop groove 51111, the installation protrusion 5133 is inserted into the installation groove 51115.

[0056] In this embodiment, when the baffle 513 is placed over the stop groove 51111, the mounting protrusion 5133 on the periphery of the baffle 513 will be inserted into the mounting groove 51115 on the connecting seat 511. This insertion method achieves a tight connection between the baffle 513 and the connecting seat 511, preventing the baffle 513 from loosening or falling off due to vibration or other external forces, thereby ensuring the stable rotation of the limiting shaft 53 within the limiting cavity 5115.

[0057] Reference Figure 17 In one embodiment of the present invention, the connecting seat 511 includes a seat plate 5111 and two connecting plates 5113. The two connecting plates 5113 are disposed on both sides of the seat plate 5111, and the seat plate 5111 is bent to one side to form the stop groove 51111.

[0058] The connecting plate 5113 is provided with a first through hole 5131 for the limiting shaft 53 to pass through, and the seat plate 5111 is provided with a second through hole 51113 for the limiting shaft 53 to pass through.

[0059] In this embodiment, after the connecting seat 511 is installed on the display module 3, the stop groove 51111 provides a specific recessed space for the installation of the limiting shaft 53, and also plays a certain supporting and limiting role. This structural design makes the connection between the connecting seat 511 and the display module 3 tighter and more stable. The stop groove 51111 formed by the bending of the seat plate 5111 can effectively prevent the limiting shaft 53 from moving to one side, thereby improving the structural strength and reliability of the entire snap-fit ​​assembly 5.

[0060] Reference Figure 17 In one embodiment of the present invention, the two connecting plates 5113 are respectively provided with connecting holes 51131, which are used for fasteners to pass through in order to install the connecting plates 5113.

[0061] In this embodiment, fasteners are sequentially passed through the connecting holes 51131 on the two connecting plates 5113 and the first fixing hole 3313 on the display module 3, and then tightened, thereby firmly connecting the two connecting plates 5113 to the display module 3, realizing a tight connection between the snap-fit ​​component 5 and the display module 3, ensuring that the snap-fit ​​component 5 will not loosen or fall off during the use of the display module 3, and providing a strong guarantee for the stable installation of the display module 3.

[0062] Reference Figure 16 In one embodiment of the present invention, a plurality of limiting portions 531 are provided, and the plurality of limiting portions 531 are spaced apart on the limiting shaft 53.

[0063] In this embodiment, when the limiting shaft 53 passes through the mounting hole 1331 and rotates, multiple limiting parts 531 can perform axial limiting cooperation with different positions of the mounting hole 1331, which increases the contact area and limiting points with the mounting hole 1331 and strengthens the snap-fit ​​strength of the snap-fit ​​assembly 5.

[0064] For example, there are two limiting parts 531, which are provided on both sides of the limiting shaft 53. The mounting hole 1331 is a strip hole. When the end of the limiting shaft 53 with the limiting part 531 passes through, the two limiting parts 531 are perpendicular to the depth direction of the strip hole, thereby achieving a limiting fit with the opening edge of the mounting hole 1331.

[0065] Reference Figure 16 In one embodiment of the present invention, the end face of the limiting shaft 53 is provided with a toggle groove 537, which is used for inserting a transmission component to drive the limiting shaft 53 to rotate.

[0066] In this embodiment, the rotation of the transmission component drives the limiting shaft 53 to rotate, thereby enabling the limiting part 531 to engage or disengage from the mounting hole 1331. Therefore, the design of the actuating groove 537 facilitates cooperation with external transmission components, making the rotation operation of the limiting shaft 53 more convenient and labor-saving, improving the efficiency of installation and disassembly, and avoiding the inconvenience and safety hazards that may result from directly operating the limiting shaft 53.

[0067] For example, the actuating groove 537 is a hexagonal wrench groove. The wrench head is inserted into the hexagonal wrench groove, and the limit shaft 53 is rotated by rotating the wrench.

[0068] Reference Figures 1 to 17 This utility model also proposes an LED display device 10, which includes a frame assembly 1, a display module 3, and a snap-fit ​​assembly 5 as described above. The frame assembly 1 has a mounting hole 1331. The display module 3 is disposed on one side of the frame assembly 1 and has a storage cavity. The cavity wall of the storage cavity has a first clearance hole 3311. The mounting bracket 51 is connected to the inner wall of the storage cavity. The limiting shaft 53 passes through the first clearance hole 3311 and the mounting hole 1331 in sequence, and rotates the limiting part 531 to snap-fit ​​onto the frame assembly 1.

[0069] Since the LED display device 10 of this subject adopts all the technical solutions of all the above embodiments of the snap-fit ​​component 5, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0070] The rack assembly 1 includes a frame 11, a storage shell 13, and a cover 15. The frame 11 provides support for the carrier plate 31. The storage shell 13 is located on the side of the rack away from the carrier plate 31. The cover 15 is detachably installed on the storage slot 131 of the storage shell 13. The storage slot 131 of the storage shell 13 is divided into a first storage layer 133 and a second storage layer 135 by a partition 136. The first storage layer 133 is provided with a mounting hole 1331 for engaging with the snap-fit ​​assembly 5. The second storage layer 135 is used to install the power supply 61 and is provided with a cable pass 1351. Electrical connection with the display module 3 is achieved through the cable pass 1351 and the second clearance hole 1336.

[0071] The rack assembly 1 also includes two lifting rings 17, which are positioned above the frame 11 to suspend the rack assembly 1, thereby enabling the LED display device 10 to be displayed in mid-air. An input terminal 63 is also provided above the LED display device 10, which is used to connect to an external source for power supply or signal control.

[0072] In this embodiment, the mounting bracket 51 is placed inside the storage cavity of the display module 3, and a first clearance hole 3311 is provided on the cavity wall of the storage cavity for the limiting shaft 53 to pass through. Compared with placing the snap-fit ​​component on the outside of the cavity wall of the storage cavity, it is beneficial to reduce the thickness of the LED display device 10, making the LED display device 10 thinner and more aesthetically pleasing.

[0073] Reference Figure 5 ,as well as Figures 10 to 12 In one embodiment of the present invention, the display module 3 includes a carrier plate 31 and a control module 33. The LED beads 35 are disposed on one side of the carrier plate 31, and the control module 33 and the snap-fit ​​component 5 are disposed on the other side.

[0074] And / or, the carrier plate 31 is divided into a display area and a control area on the side opposite to the LED beads 35. The display area is provided with through holes 311 arranged in an array. The control module 33 is located in the control area. The snap-fit ​​component 5 is located in the control module 33.

[0075] The control module 33 includes a control housing 331 and an adapter 337. The adapter 337 is mounted on the carrier plate 31. The control module 33 also includes a power supply port 333, a network cable interface 334, a light guide 335, a switch 336, and the adapter 337. The control housing 331 has a first clearance hole 3311, a second clearance hole 3312, and a first fixing hole 3313. The first clearance hole 3311 is used for the limit shaft 53 to pass through and is configured with an irregular shape to facilitate the passage and limitation of the limit shaft 53. The second clearance hole 3312 is used for the connection of the power supply port 333, the network cable interface 334, etc. The light guide 335 is mounted on the control housing 331 and is used to indicate the operating status of the LED beads 35. The operating status of the LED beads 35 can be switched by clicking the switch 336. In addition, the receiving shell 13 has a receiving part 137 protruding on the side opposite to the cover shell 15. The receiving part 137 can be used to temporarily support the carrier plate 31 and block and limit the carrier plate 31 by relying on the baffle plate 1355. This helps to reduce the supporting weight of the frame 11 and expose the display area of ​​the carrier plate 31 as much as possible, thereby increasing the display area of ​​the LED display device 10.

[0076] In this embodiment, the carrier board 31 and the control module 33 are assembled into one unit. Compared with installing the control module separately in the rack assembly and connecting the corresponding wires, this embodiment is beneficial to improving the assembly efficiency of the display module 3 and the rack assembly 1, while ensuring the normal operation of the control module 33.

[0077] In addition, based on the LED beads 35 and the control module 33 respectively set on both sides of the carrier board 31, an array through hole 311 is also opened on the display area of ​​the carrier board 31. The through hole 311 is conducive to the heat dissipation of the LED beads 35, thereby ensuring the normal use of the LED display device 10. On the other hand, it allows the user to see the other side of the carrier board 31, thereby improving the user experience.

[0078] Reference Figure 7 In one embodiment of the present invention, the frame assembly 1 is further provided with a positioning hole 1333, the positioning hole 1333 and the mounting hole 1331 are arranged on the same side at intervals, and the display module 3 is further provided with a positioning member 55, the end of the positioning member 55 is inserted into the positioning hole 1333.

[0079] The control housing 331 may also have a second fixing hole 3314. The positioning member 55 may be a stud, which is threadedly connected to the second fixing hole 3314. The protruding part of the stud is used to pass through the positioning hole 1333.

[0080] In this embodiment, when installing the display module 3, the end of the positioning member 55 is first aligned and inserted into the positioning hole 1333 of the frame assembly 1 to achieve initial positioning. Then, the display module 3 is fixedly installed by the cooperation of the snap-fit ​​assembly 5 and the mounting hole 1331. Therefore, the tedious operation of repeatedly adjusting the alignment manually is avoided. At the same time, the positioning member 55 can also enhance the stability of the display module 3 after installation to a certain extent, preventing it from shifting in position due to external forces or other factors during use, and ensuring the uniformity and stability of the display effect.

[0081] Reference Figure 4 In one embodiment of the present invention, the frame assembly 1 is further provided with a first clearance hole 1335, the first clearance hole 1335 and the mounting hole 1331 are arranged on the same side at intervals, and the display module 3 is further provided with a handle 36, the handle 36 passing through the first clearance hole 1335.

[0082] The control housing 331 may also have a third fixing hole 3315, and the handle 36 may be fixed to the third fixing hole 3315 by means of fastener connection.

[0083] In this embodiment, when installing the display module 3, the handle 36 is aligned with the first clearance hole 1335 and passed through the hole. Then, the display module 3 is fixed to the rack assembly 1 by the cooperation of the snap-fit ​​component 5 and the mounting hole 1331. When it is necessary to disassemble the display module 3, the maintenance personnel can directly grasp the handle 36 to unlock the snap-fit ​​component 5 from the rack assembly 1, and apply pulling force by the handle 36 to easily and quickly remove the display module 3 from the rack assembly 1.

[0084] Therefore, the arrangement of the handle 36 and the first clearance hole 1335 greatly facilitates the disassembly of the display module 3. Maintenance personnel can easily grasp the handle 36 for operation without the need for other tools or equipment, reducing disassembly time and labor intensity.

[0085] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A snap-fit assembly, characterized by include: Mounting rack; A limiting shaft is rotatably connected to the mounting bracket, and a limiting part protrudes from the periphery of the mounting bracket; The mounting bracket has a limiting cavity, the limiting shaft passes through the limiting cavity, and a stop portion is provided on the circumferential side of the limiting cavity. The stop portion is axially limited to the cavity wall of the limiting cavity so that the limiting shaft can rotate circumferentially.

2. The card interface assembly of claim 1, wherein, The limiting cavity is provided with a first through hole for the limiting shaft to pass through. An angle protrusion is provided on the side wall of the first through hole. A rotating protrusion is provided on the periphery of the limiting shaft passing through the first through hole. The angle protrusion and the rotating protrusion are circumferentially limiting and cooperating. And / or, the limiting shaft is provided with a spiral portion protruding from the periphery of the first through hole, and the rotating protrusion is provided on the periphery of the spiral portion.

3. The card interface assembly of claim 1, wherein, The mounting bracket includes a connecting seat and a baffle. A stop groove is recessed on one side of the connecting seat, and the baffle covers the stop groove to enclose and form a limiting cavity.

4. The card connector assembly of claim 3, wherein The connecting seat is also recessed to form an installation groove on the same side as the stop groove, and the periphery of the baffle is provided with an installation protrusion. When the baffle covers the stop groove, the installation protrusion is inserted into the installation groove.

5. The snap-fit ​​assembly as described in claim 3, characterized in that, The connecting seat includes a seat plate and two connecting plates, with the two connecting plates located on both sides of the seat plate. The seat plate is bent to one side to form the stop groove.

6. The card connector assembly of claim 5, wherein The two connecting plates are respectively provided with connecting holes for fasteners to pass through in order to install the connecting plates.

7. The card interface assembly of any one of claims 1 to 6, wherein, The number of the limiting parts is provided in multiples, and the multiple limiting parts are arranged at intervals on the limiting shaft.

8. The card interface assembly of any one of claims 1 to 6, wherein, The end face of the limiting shaft is recessed with a moving groove, which is used for inserting a transmission component to drive the limiting shaft to rotate.

9. An LED display device, characterized by, The LED display device includes: The rack assembly has mounting holes; The display module is located on one side of the frame assembly and has a storage cavity. The cavity wall of the storage cavity has a first clearance hole. According to any one of claims 1 to 8, the mounting bracket is connected to the inner wall of the receiving cavity, the limiting shaft passes through the first clearance hole and the mounting hole in sequence, and the limiting part is rotated to engage with the frame assembly.

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