CN107731108B - Connecting device and LED display screen - Google Patents
Connecting device and LED display screen Download PDFInfo
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- CN107731108B CN107731108B CN201711018381.6A CN201711018381A CN107731108B CN 107731108 B CN107731108 B CN 107731108B CN 201711018381 A CN201711018381 A CN 201711018381A CN 107731108 B CN107731108 B CN 107731108B
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- 238000009434 installation Methods 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 abstract description 10
- 230000008569 process Effects 0.000 abstract description 9
- 230000000712 assembly Effects 0.000 description 6
- 238000000429 assembly Methods 0.000 description 6
- 230000003014 reinforcing effect Effects 0.000 description 3
- 125000006850 spacer group Chemical group 0.000 description 3
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
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- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention belongs to the technical field of LED display screen assembly, and particularly relates to a connecting device and an LED display screen. The connecting device comprises a connecting sheet and a plurality of locking components; the locking assembly comprises a locking handle, a locking rod, a locking head and a locking spring, wherein the locking spring is sleeved on the locking rod, and two ends of the locking rod are fixedly connected with the locking handle and the locking head respectively; the connecting piece is provided with a through hole for the lock rod to pass through, the through hole inwards protrudes to form a spring installation table top, one end of the locking spring is supported on the locking handle, and the other end of the locking spring is supported on the spring installation table top; the lock head is accommodated in the through hole in an initial state; the locking handle is pressed to enable the lock rod to slide along the axial direction of the through hole, and the lock head can rotate along with the locking handle after being separated from the through hole. The connecting device can enable the assembling process of the LED display screen to be more convenient and quicker.
Description
Technical Field
The invention belongs to the technical field of LED display screen assembly, and particularly relates to a connecting device and an LED display screen using the same.
Background
An LED display screen, which is a display screen for displaying various information such as text, graphics or images, is generally assembled from a plurality of LED display units, and four adjacent LED display units are generally assembled quickly by a quick connection device. As shown in fig. 1, the conventional quick-connection device generally includes a connection piece 1a and a screw 1b, wherein four top corners of the connection piece 1a are respectively provided with a through hole through which the screw 1b passes. In the assembly process of the LED display screen, four through holes of the top angles of the quick connecting device are respectively placed above splicing screw holes of the four adjacent LED display units, and the four top angles of the quick connecting device can be respectively fixed on the four adjacent LED display units by screwing screws 1b, so that the positions of the four LED display units are relatively fixed, and the purpose of quickly assembling the four adjacent LED display units is achieved. However, the screw connection method requires special tools in the actual operation process, so that the LED display screen is inconvenient to assemble, and the screw connection is easy to loosen, thereby influencing the use of the LED display screen.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: aiming at the technical problems that the existing quick connecting device is inconvenient for assembling an LED display screen and looseness is easy to generate after connection, the connecting device and the LED display screen using the same are provided.
In order to solve the technical problems, an embodiment of the present invention provides a connecting device, which includes a connecting piece and a plurality of locking components;
the locking assembly comprises a locking handle, a locking rod, a locking head and a locking spring, wherein the locking spring is sleeved on the locking rod, and two ends of the locking rod are fixedly connected with the locking handle and the locking head respectively;
the connecting piece is provided with a through hole for the lock rod to pass through, the through hole inwards protrudes to form a spring installation table top, one end of the locking spring is supported on the locking handle, and the other end of the locking spring is supported on the spring installation table top;
the lock head is accommodated in the through hole in an initial state;
pressing the locking handle can enable the locking rod to slide along the axial direction of the through hole, and the locking head can rotate along with the locking handle after being separated from the through hole, so that the locking assembly is switched from the unlocking position to the locking position.
Optionally, the through hole comprises a first hole section, a second hole section and a third hole section, the second hole section is connected between the first hole section and the third hole section, the spring mounting table top is formed between the first hole section and the second hole section, and a lock head limiting surface is formed between the second hole section and the third hole section;
the lock is accommodated in the third hole section in an initial state, and the lock limiting surface is used for preventing the lock from moving from the second hole Duan Tuochu.
Optionally, the locking spring is pre-pressed between the locking handle and the spring mounting table top, and the lock head abuts against the lock head limiting surface in an initial state.
Optionally, the connecting device further comprises a cushion block, a first friction surface is arranged on the surface, facing the locking handle, of the cushion block, and a second friction surface is arranged on the surface, facing the cushion block, of the locking handle.
Optionally, the cushion is a slope cushion, the slope cushion is equipped with first slope section and second slope section, first slope section with the second slope section is in the circumferencial direction of slope cushion is in 180 degrees intervals setting.
Optionally, both ends of the lock head protrude out of the end face of the lock rod.
Optionally, the connecting device further comprises a limiting component;
the limiting assembly can be switched back and forth between a limiting position and a releasing position; at the limiting position of the limiting component, the limiting component limits the locking component to return to the unlocking position from the locking position; in the release position of the limit assembly, the limit assembly allows the locking assembly to return from the locking position to the unlocking position;
the limit assembly always allows the locking assembly to be switched from the unlocked position to the locked position.
Optionally, the limiting component comprises a limiting piece, a limiting spring and a limiting plate;
the limiting plate is fixedly connected to the bottom of the connecting sheet;
the limiting piece comprises a button, a limiting column and a bottom plate, wherein one ends of the button and the limiting column are fixedly connected to the bottom plate, and the other ends of the button and the limiting column penetrate out of the connecting sheet at the limiting position of the limiting assembly; the limiting column can retract into the connecting sheet by pressing the button, so that the limiting assembly is switched from a limiting position to a releasing position; the button bottom inwards sunken forms the guide way, limit spring's one end supports the guide way bottom, limit spring's the other end supports on the limiting plate.
Optionally, the locking handle includes an operating part, a limiting part, and a connecting part connecting the operating part and the limiting part, the connecting part is fixedly connected with the lock rod, and the locking component can be driven to rotate by rotating the operating part;
the limiting column is positioned on the rotating path of the limiting part, and the limiting column stops the limiting part when the locking assembly is switched from the locking position to the unlocking position at the limiting position of the limiting assembly; when the locking assembly is switched from the locking position to the unlocking position at the unlocking position of the locking assembly, the limiting column is not interfered with the limiting part.
On the other hand, the embodiment of the invention also provides an LED display screen, which comprises a plurality of LED display units and the connecting device;
the inner side of the top of the LED display unit is provided with a containing groove, the top of the LED display unit is provided with a lock hole, the bottom opening of the lock hole is communicated with the containing groove, and the top opening of the lock hole is exposed out of the top of the LED display unit;
in the unlocking position of the locking component, the lock head can pass through the lock hole to reach the accommodating groove, and at the moment, the locking handle is rotated to drive the lock head to rotate to form a cross with the lock hole, so that the locking component is converted to the locking position.
According to the connecting device and the LED display screen, in the initial state, the lock head is accommodated in the through hole of the connecting sheet, and the locking rod can slide along the axial direction of the through hole of the connecting sheet by pressing the locking handle, so that the lock head is gradually separated from the through hole of the connecting sheet and penetrates through the lock hole of the LED display unit to reach the accommodating groove. At the moment, the locking handle is rotated to drive the lock head to rotate to a position crossing the lock hole of the LED display unit, so that the locking assembly is converted from the unlocking position to the locking position, and the connection between the connecting device and the LED display unit is completed. The connecting device has the advantages that the connecting process is simple and quick, other professional tools are not needed, and the assembling process of the LED display screen can be more convenient and quick.
Drawings
FIG. 1 is a schematic view of a prior art quick connect device;
FIG. 2 is a schematic view of a connecting device according to an embodiment of the present invention;
FIG. 3 is a disassembled view of FIG. 2;
FIG. 4 is a top view of FIG. 2 in an initial state;
FIG. 5 is a cross-sectional view taken at A-A of FIG. 4;
FIG. 6 is a cross-sectional view taken at B-B of FIG. 4;
FIG. 7 is a cross-sectional view taken at C-C of FIG. 4;
FIG. 8 is a top view of FIG. 2 in a locked state;
FIG. 9 is a cross-sectional view taken at D-D of FIG. 8;
FIG. 10 is a schematic diagram of a connection device according to an embodiment of the present invention when not installed on an LED display screen;
fig. 11 is an enlarged view at a in fig. 10;
FIG. 12 is a schematic view of an embodiment of the connection device provided in the present invention in an unlocked state when the connection device is mounted on an LED display screen;
fig. 13 is an enlarged view at B in fig. 12;
FIG. 14 is a schematic view of a connection device according to an embodiment of the present invention in a locked state when the connection device is mounted on an LED display screen;
fig. 15 is an enlarged view at C in fig. 14.
Reference numerals in the specification are as follows:
100. a connecting device;
200. an LED display unit;
1. a locking assembly; 101. a locking handle; 1011. a manipulation section; 1012. a limit part; 1013. a connection part; 102. a lock lever; 103. a lock head; 104. a locking spring;
2. a connecting sheet; 201. a through hole; 2011. a first bore section; 2012. a spring mounting table top; 2013. a second bore section; 2014. a lock limiting surface; 2015. a third bore section; 202. reinforcing the hole;
3. slope cushion blocks; 301. a first ramp section; 302. a second ramp section;
4. a limit component; 401. a limiting piece; 4011. a button; 4012. a limit column; 4013. a bottom plate; 4014. a guide groove; 402. a limit spring; 403. a limiting plate;
5. a receiving groove;
6. a locking mark;
7. unlocking the identification.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects solved by the invention more clear, the invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
As shown in fig. 10 to 15, an LED display screen according to an embodiment of the present invention includes a plurality of LED display units 200 and a connection device 100; the inside of the top of the LED display unit 200 is provided with a containing groove 5, the top of the LED display unit 200 is provided with a lock hole, the bottom opening of the lock hole is communicated with the containing groove 5, and the top opening of the lock hole is exposed out of the top of the LED display unit 200.
In one embodiment, as shown in fig. 2 to 3, the connecting device 100 includes a connecting piece 2 and a plurality of locking assemblies 1. The locking assembly 1 comprises a locking handle 101, a locking rod 102, a locking head 103 and a locking spring 104, wherein the locking spring 104 is sleeved on the locking rod 102, and two ends of the locking rod 102 are fixedly connected with the locking handle 101 and the locking head 103 respectively. The connecting piece 2 is provided with a through hole 201 for the lock rod 102 to pass through, the through hole 201 protrudes inwards to form a spring mounting table 2012, one end of the locking spring 104 is supported on the locking handle 101, and the other end of the locking spring 104 is supported on the spring mounting table 2012. The lock head 103 is accommodated in the through hole 201 in an initial state; pressing the locking handle 101 causes the lock lever 102 to slide in the axial direction of the through-hole 201, and the lock head 103 can rotate following the locking handle 101 after being disengaged from the through-hole 201, so that the locking assembly 1 is switched from the unlocking position to the locking position.
In the unlocking position of the locking assembly 1, the locking head 103 can pass through the lock hole of the LED display unit 200 to reach the accommodating groove 5, and at the moment, the locking handle 101 is rotated to drive the locking head 103 to rotate to a position crossing the lock hole of the LED display unit 200, so that the locking assembly 1 is converted from the unlocking position to the locking position. It will be appreciated that the locking head 103 may rotate within the receiving slot 5 following the locking handle 101.
According to the connecting device 100 and the LED display screen provided by the embodiments of the present invention, in an initial state, the lock head 103 is accommodated in the through hole 201 of the connecting piece 2, and the lock rod 102 can slide along the axial direction of the through hole 201 of the connecting piece 2 by pressing the locking handle 101, so that the lock head 103 gradually breaks away from the through hole 201 of the connecting piece 2 and passes through the lock hole of the LED display unit 200 to reach the accommodating groove 5. After the lock head 103 is separated from the through hole 201 of the connecting sheet 2, the locking handle 101 is rotated, so that the lock head 103 can be driven to rotate to a position crossing the lock hole of the LED display unit 200, and the locking assembly 1 is switched from the unlocking position to the locking position, thereby completing the connection between the connecting device 100 and the LED display unit 200. In addition, in this embodiment, by providing the spring mounting table 2012, the locking spring 104 can be partially accommodated in the space surrounded by the spring mounting table 2012 and the through hole 201, thereby preventing the locking spring 104 from sliding relative to the connecting piece 2. The connection process of the connection device 100 is simple and quick, other professional tools are not needed, and the assembly process of the LED display screen can be more convenient and quick.
In an embodiment, as shown in fig. 4 to 9, the through hole 201 includes a first hole section 2011, a second hole section 2013, and a third hole section 2015, the second hole section 2013 is connected between the first hole section 2011 and the third hole section 2015, the spring mounting mesa 2012 is formed between the first hole section 2011 and the second hole section 2013, and a lock end limit surface 2014 is formed between the second hole section 2013 and the third hole section 2015. The lock cylinder 103 is accommodated in the third hole section 2015 in an initial state, and the lock cylinder limiting surface 2014 is used for preventing the lock cylinder 103 from being separated from the second hole section 2013.
It can be appreciated that by providing the lock limiting surface 2014, the lock 103 can be effectively limited in the third hole 2015, so as to prevent the locking assembly 1 from loosening relative to the connecting piece 2.
In a preferred embodiment, as shown in fig. 4-9, the locking spring 104 is pre-compressed between the locking handle 101 and the spring mounting land 2012, with the lock cylinder 103 initially abutting the lock cylinder stop surface 2014.
In an embodiment, as shown in fig. 2 to 3, the connection device 100 further comprises a spacer block, a surface of the spacer block facing the locking handle 101 is provided with a first friction surface, and a surface of the locking handle 101 facing the spacer block is provided with a second friction surface. Through setting up first friction surface and second friction surface, increase locking handle 101 with frictional force between the cushion, make the locking subassembly 1 that is in locking position be difficult for not hard up, improve the locking effect of locking subassembly 1. At the same time, the locking between the connecting piece 2 and the LED display unit 200 is more fastened, and the relative position between the LED display units 200 is more stable.
In a preferred embodiment, as shown in fig. 2 to 3, the pad is a slope pad 3, the slope pad 3 is provided with a first slope section 301 and a second slope section 302, and the first slope section 301 and the second slope section 302 are disposed 180 degrees apart in the circumferential direction of the slope pad 3. It will be appreciated that the surfaces of the first and second ramp sections 301, 302 facing the locking handle 101 are provided with a first friction surface.
It will be appreciated that rotating the locking handle 101 after the locking head 103 has been disengaged from the through hole 201, the locking handle 101 will rotate and rise along the first and second ramp sections 301, 302, causing the distance from the locking head 103 to the bottom of the connecting piece 2 to be continuously reduced and the locking assembly 1 to be switched from the unlocked position to the locked position, thereby relatively securing the connection device 100 and the LED display unit 200. By means of said first friction surface, the friction between the locking handle 101 and the first and second ramp sections 301, 302 is increased, preventing the locking assembly 1 in the locked position from loosening and sliding down the ramp rotation.
In one embodiment, as shown in fig. 3 and 10, both ends of the locking head 103 protrude from the end surface of the locking lever 102. By setting the shape of both ends of the lock head 103, the lock head 103 is rotated in the accommodating groove 5 to a position crossing the lock hole of the LED display unit 200.
In an embodiment, as shown in fig. 2 to 3, the connection device 100 further includes a limiting assembly 4, and the limiting assembly 4 can be switched back and forth between a limiting position and a releasing position; at the limit position of the limit component 4, the limit component 4 limits the locking component 1 to return to the unlocking position from the locking position; in the release position of the limit assembly 4, the limit assembly 4 allows the locking assembly 1 to return from the locked position to the unlocked position; the limit assembly 4 always allows the locking assembly 1 to be switched from the unlocked position to the locked position.
It will be appreciated that the limiting assembly 4 may be used to limit the free transition of the locking assembly 1 in the locked position to the unlocked position, thereby preventing the connection device 100 from being free to fall off the LED display unit 200, and making the connection between the connection device 100 and the LED display unit 200 more secure.
In a preferred embodiment, as shown in fig. 3, the limiting assembly 4 includes a limiting member 401, a limiting spring 402, and a limiting plate 403; the limiting plate 403 is fixedly connected to the bottom of the connecting sheet 2. The limiting piece 401 comprises a button 4011, a limiting column 4012 and a bottom plate 4013, one ends of the button 4011 and the limiting column 4012 are fixedly connected to the bottom plate 4013, and at the limiting position of the limiting assembly 4, the other ends of the button 4011 and the limiting column 4012 penetrate out of the connecting sheet 2; the limit post 4012 is retracted into the connecting piece 2 by pressing the button 4011, so that the limit assembly 4 is switched from the limit position to the release position. Wherein, the bottom of button 4011 is inwards sunken to form guide way 4014, and the one end of spacing spring 402 supports in the bottom of guide way 4014, and the other end of spacing spring 402 supports on limiting plate 403.
It can be appreciated that the limiting spring 402 is accommodated in a space surrounded by the guide groove 4014 and the limiting plate 403, and the limiting member 401 can move relative to the limiting plate 403 along with the expansion and contraction of the limiting spring 402. When no external force is applied to the spacing spring 402, the spacing member 401 will be away from the spacing plate 403; when an external force is applied to the spacing spring 402, the spacing member 401 will approach the spacing plate 403.
In a preferred embodiment, as shown in fig. 3 to 9, the locking handle 101 includes an operating portion 1011, a limiting portion 1012, and a connecting portion 1013 connecting the operating portion 1011 and the limiting portion 1012, wherein the connecting portion 1013 is fixedly connected to the lock lever 102, and the locking assembly 1 can be rotated by rotating the operating portion 1011.
The limit post 4012 is positioned on the rotation path of the limit part 1012, and when the locking assembly 1 is switched from the locking position to the unlocking position at the limit position of the limit assembly 4, the limit post 4012 stops the limit part 1012; in the release position of the limit assembly 4, the limit post 4012 does not interfere with the limit portion 1012 when the lock assembly 1 is switched from the lock position to the unlock position.
In a preferred embodiment, as shown in fig. 4 and 8, for the convenience of the user, the connecting piece 2 is further provided with a locking mark 6 and an unlocking mark 7, and the user can easily distinguish whether the locking assembly 1 is in the locking position or the unlocking position by the locking mark 6 and the unlocking mark 7.
The direction of the limit post 4012 towards the unlocking mark 7 of the connecting sheet 2 is provided with a chamfer. When the locking assembly 1 is switched from the unlocking position to the locking position, as the limiting spring 402 is arranged below the limiting piece 401, the limiting part 1012 of the locking handle 101 moves towards the top end of the limiting column 4012 along the chamfer angle, meanwhile, the limiting column 4012 is pressed down, after the limiting part 1012 passes through the limiting column 4012, the limiting column 4012 automatically resets under the action of the limiting spring 402, and plays a limiting role on the limiting part 1012 of the locking handle 101, the locking handle 101 is prevented from rotating automatically, and the locking assembly 1 is prevented from being switched to the unlocking position automatically. When the locking assembly 1 is switched from the locking position to the unlocking position, the locking handle 101 can be easily rotated only by pressing the button 4011 towards the direction of the limiting plate 403 to enable the limiting column 4012 to move towards the direction of the limiting plate 403 along with the button 4011, so that the locking assembly 1 is switched to the unlocking position.
In one embodiment, as shown in fig. 2 to 9, the connecting piece 2 is rectangular, and four locking assemblies 1 and two limiting assemblies 4 are arranged on the connecting piece 2. Four locking components 1 are respectively arranged at four vertex angles of the connecting sheet 2, and two limiting components 4 are symmetrically arranged between the adjacent locking components 1. It will be appreciated that each spacing assembly 4 may simultaneously act as a spacing for two adjacent locking assemblies 1.
As shown in fig. 10 and 11, when the connection device 100 is installed, the positions of the locking assemblies 1 on the connection device 100 are adjusted first, so that the locking assemblies 1 are in one-to-one correspondence with the accommodating grooves 5 on the LED display unit 200; after adjustment, as shown in fig. 12 and 13, the connection device 100 is placed on the LED display unit 200, the locking handle 101 is pressed down, the lock lever 102 is slid in the axial direction of the through hole 201, and the lock head 103 is passed through the lock hole of the LED display unit 200 to reach the accommodating groove 5; turning the locking handle 101 by 90 ° as shown in fig. 14 and 15, the locking head 103 is turned in the accommodating groove 5 to a position crossing the locking hole of the LED display unit 200, so that the locking assembly 1 is switched from the unlocking position to the locking position, locking between the connecting piece 2 and the LED display unit 200 is achieved, and the connecting device 100 is locked with the LED display unit 200. Simultaneously, carry out spacingly through spacing subassembly 4 to locking handle 101, prevent that locking handle 101 from rotating by oneself, accomplish the installation.
In one embodiment, as shown in fig. 2 to 9, the connecting piece 2 is further provided with three reinforcing holes 202 for connection reinforcement. By reinforcing the hole 202, the connection between the connection device 100 and the LED display unit 200 can be more stable.
In an embodiment not shown in the figures, the chamfer of the limit post arranged towards the unlocking mark of the connecting piece can also be replaced by a cambered surface.
According to the connecting device 100 and the LED display screen provided by the embodiments of the present invention, in an initial state, the lock head 103 is accommodated in the through hole 201 of the connecting piece 2, and the lock rod 102 can slide along the axial direction of the through hole 201 of the connecting piece 2 by pressing the locking handle 101, so that the lock head 103 gradually breaks away from the through hole 201 of the connecting piece 2 and passes through the lock hole of the LED display unit 200 to reach the accommodating groove 5. After the lock head 103 is separated from the through hole 201 of the connecting sheet 2, the locking handle 101 is rotated, so that the lock head 103 can be driven to rotate to a position crossing the lock hole of the LED display unit 200, and the locking assembly 1 is switched from the unlocking position to the locking position, thereby completing the connection between the connecting device 100 and the LED display unit 200. In addition, in this embodiment, by providing the spring mounting table 2012, the locking spring 104 can be partially accommodated in the space surrounded by the spring mounting table 2012 and the through hole 201, thereby preventing the locking spring 104 from sliding relative to the connecting piece 2. The connection process of the connection device 100 is simple and quick, other professional tools are not needed, and the assembly process of the LED display screen can be more convenient and quick.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (8)
1. A connecting device is characterized by comprising a connecting sheet and a plurality of locking components;
the locking assembly comprises a locking handle, a locking rod, a locking head and a locking spring, wherein the locking spring is sleeved on the locking rod, and two ends of the locking rod are fixedly connected with the locking handle and the locking head respectively;
the connecting piece is provided with a through hole for the lock rod to pass through, the through hole inwards protrudes to form a spring installation table top, one end of the locking spring is supported on the locking handle, and the other end of the locking spring is supported on the spring installation table top;
the lock head is accommodated in the through hole in an initial state;
pressing the locking handle can enable the locking rod to slide along the axial direction of the through hole, and the lock head can rotate along with the locking handle after being separated from the through hole, so that the locking assembly is switched from an unlocking position to a locking position;
the connecting device further comprises a cushion block, a first friction surface is arranged on the surface, facing the locking handle, of the cushion block, and a second friction surface is arranged on the surface, facing the cushion block, of the locking handle;
the cushion block is a slope cushion block, the slope cushion block is provided with a first slope section and a second slope section, and the first slope section and the second slope section are arranged at 180-degree intervals in the circumferential direction of the slope cushion block;
the surface of the first slope section and the surface of the second slope section, which faces the locking handle, are provided with the first friction surface.
2. The connection device of claim 1, wherein the through hole comprises a first hole section, a second hole section, and a third hole section, the second hole section being connected between the first hole section and the third hole section, the spring mounting land being formed between the first hole section and the second hole section, the second hole section and the third hole section having a lock end stop formed therebetween;
the lock is accommodated in the third hole section in an initial state, and the lock limiting surface is used for preventing the lock from moving from the second hole Duan Tuochu.
3. The connection device of claim 2, wherein the locking spring is pre-compressed between the locking handle and the spring mounting deck, the lock head abutting the lock head limit surface in an initial state.
4. The connection device according to claim 1, wherein both ends of the locking head protrude from an end face of the locking rod.
5. The connection device of claim 1, further comprising a stop assembly;
the limiting assembly can be switched back and forth between a limiting position and a releasing position; at the limiting position of the limiting component, the limiting component limits the locking component to return to the unlocking position from the locking position; in the release position of the limit assembly, the limit assembly allows the locking assembly to return from the locking position to the unlocking position;
the limit assembly always allows the locking assembly to be switched from the unlocked position to the locked position.
6. The connection device of claim 5, wherein the limit assembly comprises a limit piece, a limit spring, and a limit plate;
the limiting plate is fixedly connected to the bottom of the connecting sheet;
the limiting piece comprises a button, a limiting column and a bottom plate, wherein one ends of the button and the limiting column are fixedly connected to the bottom plate, and the other ends of the button and the limiting column penetrate out of the connecting sheet at the limiting position of the limiting assembly; the limiting column can retract into the connecting sheet by pressing the button, so that the limiting assembly is switched from a limiting position to a releasing position; the button bottom inwards sunken forms the guide way, limit spring's one end supports the guide way bottom, limit spring's the other end supports on the limiting plate.
7. The connecting device according to claim 6, wherein the locking handle comprises an operating part, a limiting part and a connecting part for connecting the operating part and the limiting part, the connecting part is fixedly connected with the lock rod, and the locking assembly can be driven to rotate by rotating the operating part;
the limiting column is positioned on the rotating path of the limiting part, and the limiting column stops the limiting part when the locking assembly is switched from the locking position to the unlocking position at the limiting position of the limiting assembly; when the locking assembly is switched from the locking position to the unlocking position at the unlocking position of the locking assembly, the limiting column is not interfered with the limiting part.
8. An LED display screen comprising a plurality of LED display units and a connection device according to any one of claims 1-7;
the inner side of the top of the LED display unit is provided with a containing groove, the top of the LED display unit is provided with a lock hole, the bottom opening of the lock hole is communicated with the containing groove, and the top opening of the lock hole is exposed out of the top of the LED display unit;
in the unlocking position of the locking component, the lock head can pass through the lock hole to reach the accommodating groove, and at the moment, the locking handle is rotated to drive the lock head to rotate to form a cross with the lock hole, so that the locking component is converted to the locking position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711018381.6A CN107731108B (en) | 2017-10-27 | 2017-10-27 | Connecting device and LED display screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711018381.6A CN107731108B (en) | 2017-10-27 | 2017-10-27 | Connecting device and LED display screen |
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| Publication Number | Publication Date |
|---|---|
| CN107731108A CN107731108A (en) | 2018-02-23 |
| CN107731108B true CN107731108B (en) | 2024-03-19 |
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| CN201711018381.6A Active CN107731108B (en) | 2017-10-27 | 2017-10-27 | Connecting device and LED display screen |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110318580B (en) * | 2018-03-30 | 2021-01-12 | 致茂电子(苏州)有限公司 | Can accomodate handle subassembly and test machine butt joint subassembly |
| CN111540284A (en) * | 2020-06-04 | 2020-08-14 | 深圳市铭濠科技有限公司 | Grid screen |
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| CN107731108A (en) | 2018-02-23 |
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