WO2021175219A1

WO2021175219A1 - Connecting device for led display screen

Info

Publication number: WO2021175219A1
Application number: PCT/CN2021/078726
Authority: WO
Inventors: 易明勇; 娄小波
Original assignee: 深圳市艾比森光电股份有限公司; 惠州市艾比森光电有限公司
Priority date: 2020-03-05
Filing date: 2021-03-02
Publication date: 2021-09-10
Also published as: CN111396412A; CN111396412B

Abstract

A connecting device (20) for an LED display screen. The LED display screen comprises a plurality of cabinets (10). Each cabinet (10) is provided with a connecting portion (13). The connecting device (20) comprises a mating portion (28), a movable portion (21), and an operating portion (29). The mating portion (28) mates with the connecting portion (13) and is detachably connected thereto. The movable portion (21) is used for fixedly connecting or forming the mating portion (28). The operating portion (29) is operated by a user to drive the movable portion (21) and the mating portion (28) to rotate about a first axis. The operating portion (29) is connected to or formed on the movable portion (21). When the operating portion (29) is located in a locking position, the connecting portion (13) and the mating portion (28) are fixedly connected. When the operating portion (29) is located in an unlocking position, the connecting portion (13) is movable with respect to the mating portion (28). The connecting device (20) improves the installation and assembly efficiency.

Description

Connecting device for LED display

Technical field

This application relates to the technical field of display screens, and in particular to a connection device for LED display screens.

Background technique

As the application of display screens becomes more and more extensive, higher requirements are put forward for the installation speed of display splicing. The current splicing between display screens is generally through connecting devices set up on the top, bottom, left, and right sides of the display box. After the connection is completed, a connecting device needs to be set between the two adjacent display boxes, and the number of connecting devices is large; however, in the actual splicing process, due to the large number of connecting devices, the connection operation steps are many and consumes a lot of energy. The time is too long to achieve fast functions, there are many parts and the loss rate is high.

technical problem

One of the objectives of the embodiments of the present application is to provide a connection device for LED display screens, which aims to solve the technical problem of the large number of connection devices during display splicing in the prior art, which causes the connection operation steps to take a long time. .

Technical solutions

In order to solve the above technical problems, the technical solutions adopted in the embodiments of this application are:

The embodiment of the application provides a connecting device for an LED display screen, the LED display screen includes a plurality of boxes, each of the boxes is provided with a connecting part for detachably connecting the connecting device; its features In that, the connecting device includes:

A mating part, which cooperates with the connecting part and forms a detachable connection;

The movable part is used for fixed connection or forming the mating part;

The operating part is operated by the user to drive the movable part and the matching part to rotate about the first axis; the operating part is connected to or formed on the movable part;

Wherein, the operating portion has a locked position and an unlocked position. When the operating portion is in the locked position, the connecting portion and the mating portion form a fixed connection; when the operating portion is in the unlocked position, The connecting part is movable relative to the matching part.

In an embodiment, the connecting device includes a plurality of the mating parts; each of the connecting parts and each of the mating parts are arranged in a one-to-one correspondence and respectively form a detachable connection.

In one embodiment, the connecting portion is a connecting column extending in a direction parallel to the first axis, and the mating portion is a through hole that matches with the connecting column.

In one embodiment, the mating part is a connecting post extending in a direction parallel to the first axis, and the connecting part is a through hole that is mated with the mating part.

In one embodiment, the through hole includes a clamping section and a through section communicating with the clamping section along the circumference of the first axis, and the aperture of the through section is larger than that of the clamping section. Aperture.

In an embodiment, the through hole extends arcuately along the circumferential direction of the first axis.

In one embodiment, the outer diameter of the connecting column is larger than the hole diameter of the clamping section, and the outer diameter of the connecting column is smaller than the hole diameter of the perforating section.

In one embodiment, a protrusion is provided above the clamping section along a direction parallel to the first axis, and the closer the protrusion is to the penetration section, the smaller the height of the protrusion.

In one embodiment, the protrusion is magnetic, and a magnetic part that is magnetically attracted to the protrusion is provided on the connecting column.

In one embodiment, the outer peripheral wall of the connecting column is provided with a groove extending in the circumferential direction of the connecting column; when the operating portion is in the locked position, the protrusion is embedded in the groove and It forms an interference fit with the groove.

In one embodiment, the protrusion extends along the periphery of the clamping section.

In an embodiment, the mating portion adopts a structure in which a plurality of through holes are connected.

In one embodiment, the movable portion is a circular disk, and a plurality of the through holes are arranged at intervals along the circumferential direction of the circular disk and all extend along the circumferential direction of the circular disk.

In an embodiment, the connecting device further includes a housing, the housing is provided with a mounting cavity with an opening, and the disc is rotatably mounted in the mounting cavity.

In one embodiment, a rotating column is provided at the center of the disc, and the axis of the rotating column coincides with the first axis; the cavity bottom surface of the mounting cavity is provided with a rotating hole through which the rotating column passes Passing through the rotating hole and rotating in the rotating hole.

In one embodiment, the end of the rotating column passing through the rotating hole is provided with the rotating handle for the staff to hold, and the rotating handle is the operating part.

In one embodiment, the bottom surface of the mounting cavity is provided with a plurality of mounting holes, each of the mounting holes is provided with a captive screw, and each of the captive screws is connected to the box body one by one. Corresponding settings.

In one embodiment, each of the connecting portions is evenly spaced along the circumferential direction of the first axis and is centrally symmetrical about the first axis; each of the mating portions is evenly spaced along the circumferential direction of the first axis It is arranged and is centrally symmetrical about the first axis.

In one embodiment, the connecting device further includes an elastic member, which is connected to the connecting portion or the mating portion and elastically moves in a direction parallel to the first axis.

In one embodiment, the operating portion is provided on the surface of the movable portion in a direction parallel to the first axis; when the operating portion rotates around the first axis by a predetermined angle in the first direction, The operating portion is switched from the unlocked position to the locked position; when the operating portion rotates around the first axis in a second direction opposite to the first direction by a preset angle, the operating portion changes from The locked position is switched to the unlocked position; the preset angle is greater than or equal to 10° and less than or equal to 50°.

Beneficial effect

The beneficial effect of the connecting device provided by the embodiment of the present application is that: in use, after multiple boxes are spliced together, the connecting parts on the multiple boxes are installed on the mating part, and then the operating part is rotated to operate The part drives the matching part and the movable part to rotate. When the operating part is turned to the locked position, the connecting part on the box body is fixed to the matching part, so as to realize the splicing of the box body; when the operating part is reversed, the operating part drives the matching part Rotate in the opposite direction with the movable part until the operating part rotates to the unlocked position, the connecting part and the matching part on the box body can be moved, so as to realize the separation of the box body; when the LED display screen is spliced, only one embodiment of the present application is required. The connecting device can realize the splicing of the box body, and the operation is simple, and the operation can be realized only by rotating the operating part, which greatly improves the installation and splicing efficiency.

Description of the drawings

In order to more clearly describe the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only of the present application. For some embodiments, for those of ordinary skill in the art, other drawings may be obtained based on these drawings without creative labor.

Fig. 1 is a schematic structural diagram of a display screen equipped with a connecting device provided in an embodiment of the present application.

Fig. 2 is a partial enlarged view of A in Fig. 1.

FIG. 3 is a schematic diagram of the structure of the connecting device shown in FIG. 2.

Fig. 4 is a sectional view taken along the line B-B in Fig. 3;

Fig. 5 is an exploded view of the connecting device shown in Fig. 3.

Fig. 6 is a schematic diagram of the structure of the disc of the connecting device shown in Fig. 5.

FIG. 7 is a schematic diagram of the structure of the connecting column of the connecting device shown in FIG. 5.

Among them, the reference signs in the figure:

10—Box body 11—Fixed hole 12—Threaded hole

13—Connecting Department 20—Connecting device 21—Activity department

22—Connecting column 23—Elastic part 24—Fastener

25-Positioning circle 26—Shell 27—Screw

28-Coordination Department 29—Operation Department 211—Through Hole

212-protrusion 213-rotating column 214-second limit protrusion

215—rotating handle 221—groove 222—first limit protrusion

261—Mounting cavity 262—Captive screw 263—Rotating hole

264—Limited arc hole 265—Connecting hole 266—Mounting hole

2111—Passing through section 2112—Card connecting section.

Embodiments of the present invention

The embodiments of the present application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings 1 to 7 are exemplary, and are intended to explain the application, but should not be understood as a limitation to the application.

In the description of this application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", The orientation or positional relationship indicated by "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the application and simplifying the description, not It indicates or implies that the pointed device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present application.

In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present application, "multiple" means two or more than two, unless otherwise specifically defined.

In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and other terms should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection , Or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above-mentioned terms in this application can be understood according to specific circumstances.

As shown in Figures 1-7, in an embodiment of the present application, a connecting device 20 for an LED display screen is provided. The LED display screen includes a plurality of boxes 10, and each box 10 is provided with a detachable Connect the connecting portion 13 of the connecting device 20; the connecting device 20 includes:

The mating portion 28 cooperates with the connecting portion 13 and forms a detachable connection; wherein, one connecting portion 13 may be provided on one box body 10, or multiple connecting portions 13 may be provided, wherein at least one connecting portion on each box body 10 The part 13 and the mating part 28 are detachably connected; of course, the number of the mating parts 28 can be multiple, and the mating parts 28 and the connecting parts 13 are arranged in one-to-one correspondence; the number of the mating parts 28 can also be one, and more than one need to be spliced together The connecting portion 13 on the box body 10 is detachably connected with a matching portion 28.

The movable part 21 is used for fixed connection or forming the mating part 28; among them, it should be noted that the movable part 21 may provide a mounting base for the mating part 28, or it may be directly provided with a structure forming the mating part 28 directly on the movable part 21 .

The operating portion 29 is operated by the user to drive the movable portion 21 and the mating portion 28 to rotate about the first axis CC; the operating portion 29 is connected to or formed on the movable portion 21; it should be noted that the operating portion 29 can be installed in The components on the movable part 21 may also be directly provided with a structure forming the movable part 21 on the movable part 21.

The operating portion 29 has a locked position and an unlocked position. When the operating portion 29 is in the locked position, the connecting portion 13 and the mating portion 28 form a fixed connection; when the operating portion 29 is in the unlocked position, the connecting portion 13 can be relative to the mating portion 28. Activity.

Specifically, when the connecting device 20 of the embodiment of the present application is in use, after the multiple boxes 10 are spliced together, the connecting portions 13 on the multiple boxes 10 are mounted on the mating portion 28, and then the rotating operation is performed. The operating portion 29 drives the matching portion 28 and the movable portion 21 to rotate. When the operating portion 29 is rotated to the locked position, the connecting portion 13 on the box body 10 is fixed to the matching portion 28, so as to realize the splicing of the box body 10; When the operating portion 29 is reversed, the operating portion 29 drives the matching portion 28 and the movable portion 21 to rotate in the opposite direction. The separation of the body 10; when the LED display screen is spliced, only one connecting device 20 of the embodiment of the present application can be used to realize the splicing of the box body 10, and the operation is simple, and it can be realized only by rotating the operating part 29. The earth improves the efficiency of installation and splicing.

In another embodiment of the present application, referring to FIGS. 3, 4, and 5, the connecting device 20 provided includes a plurality of matching portions 28; each connecting portion 13 and each matching portion 28 are arranged in a one-to-one correspondence and respectively Form a detachable connection. Specifically, the connecting portion 13 and the mating portion 28 are connected in a one-to-one correspondence, and the connecting structure is stable and reliable, and the splicing of the LED display screen is stable and reliable.

In another embodiment of the present application, the connecting portion 13 of the connecting device 20 is provided as a connecting column 22 extending in a direction parallel to the first axis C-C, and the mating portion 28 is a through hole 211 that matches with the connecting column 22. Specifically, after the connecting post 22 is inserted into the through hole 211, the operating portion 29 is rotated, and the operating portion 29 drives the through hole 211 to rotate along the first axis CC, so that the connecting post 22 rotates relative to the through hole 211, so that the connecting post 22 is in communication. Different positions in the hole 211, so as to realize the fixing and separation of the connecting post 22 and the movable part 21. The structure of the connecting post 22 and the through hole 211 is adopted to realize the detachable connection of the connecting part 13 and the mating part 28. The structure is simple and easy to manufacture. In addition, the accuracy of the alignment and insertion of the connection post 22 into the through hole 211 is good, the problem of insertion deviation is not easy to occur, and the connection stability and reliability are good.

In another embodiment of the present application, referring to FIGS. 4, 5 and 6, the mating portion 28 of the connecting device 20 is provided as a connecting column 22 extending in a direction parallel to the first axis CC, and the connecting portion 13 is a through hole 211 that fits with the mating portion 28. Specifically, after the connecting column 22 is inserted into the through hole 211, the operating portion 29 is rotated, and the operating portion 29 drives the connecting column 22 to rotate along the first axis CC, so that the connecting column 22 rotates relative to the through hole 211, so that the connecting column 22 is in communication. Different positions in the hole 211, so as to realize the fixing and separation of the connecting post 22 and the movable part 21. The structure of the connecting post 22 and the through hole 211 is adopted to realize the detachable connection of the connecting part 13 and the mating part 28. The structure is simple and easy to manufacture. .

In another embodiment of the present application, referring to FIG. 6, the through hole 211 of the connecting device 20 provided along the circumference of the first axis CC includes a clamping section 2112 and a through section communicating with the clamping section 2112 2111. The aperture D1 of the penetration section 2111 is larger than the aperture D2 of the clamping section 2112. Specifically, after the connecting column 22 is inserted into the penetration section 2111 of the through hole 211, the operating portion 29 rotates so that the connecting column 22 enters the clamping section 2112, because the hole diameter D1 of the penetration section 2111 is larger than the hole diameter D2 of the clamping section 2112 , The connecting column 22 is transferred into the clamping section 2112 and then clamped in the clamping section 2112, so as to realize the fixation of the mating portion 28 and the connecting portion 13. It escapes and enters the penetration section 2111, thereby solving the clamping and fixing of the clamping section 2112, so that the mating portion 28 and the connecting portion 13 are separated, and the box body 10 is separated.

Furthermore, it should be noted that the through hole 211 extends along the circumferential arc of the first axis C-C to avoid interference between the connecting column 22 and the through hole 211, and to ensure the smooth rotation of the operating portion 29.

Furthermore, it should be noted that the outer diameter of the connecting column 22 is larger than the aperture D2 of the clamping section 2112, and the outer diameter of the connecting column 22 is smaller than the aperture D1 of the penetration section 2111, to ensure that the connecting column 22 is smoothly inserted into and removed from the through hole 211 Through hole 211, the connecting post 22 is stably clamped into the clamping section 2112 to realize the splicing of the box body 10. Among them, the aperture D1 of the penetrating section 2111 and the aperture D2 of the clamping section 2112 refer to the connection allowed by the through hole 211 The diameter of the thickest connecting column of the column 22. In other words, the aperture D1 of the penetration section 2111 and the aperture D2 of the clamping section 2112 may not be unique values. The aperture D1 of the piercing section 2111 is greater than or equal to the aperture D2 of the clamping section 2112. Further, when at least one of the aperture D1 of the piercing section 2111 and the aperture D2 of the clamping section 2112 is not a unique value, the piercing section The minimum value of the aperture D1 of 2111 is greater than or equal to the maximum value of the aperture D2 of the clamping section 2112. Referring to FIG. 6, when in this embodiment, the aperture D1 of the piercing section 2111 and the aperture D2 of the clamping section 2112 are both approximately unique values, the piercing section 2111 is approximately in the shape of an arc, and the diameter of the arc is It is the aperture D1 of the piercing section 2111. The clamping section 2112 is composed of a parallel section communicating with the piercing section 2111 and a semicircular arc section away from the piercing section 2111. The diameter of the semicircular arc is approximately equal to the width of the parallel section in the radial direction. , Which is the aperture D2 of the clamping section 2112.

More specifically, referring to Figure 1, Figure 2 and Figure 3, the four corners of each box 10 are provided with connecting posts 22, and the movable part 21 is provided with four through holes 211. When the four boxes 10 are spliced together, the ends of the four connecting posts 22 at the splices of the four boxes 10 are respectively inserted into the penetration sections 2111 of the four through holes 211, and then the operating portion 29 is rotated to make the four The connecting posts 22 are respectively clamped in the clamping sections 2112 of the four through holes 211, thereby connecting the four boxes 10 as a whole.

Furthermore, it should be noted that the connecting column 22 is arranged perpendicular to the back of the box body 10 to facilitate the connecting column 22 to pass through the through hole 211, that is, the first axis C-C is arranged perpendicular to the back of the box body 10.

In other embodiments, the mating portion 28 is formed by a plurality of through holes 211 structurally connected, so that one mating portion 28 can fit a plurality of connecting posts 22 to meet the splicing requirements of the box body 10.

In another embodiment of the present application, referring to FIGS. 5 and 6, the movable portion 21 may be a disc, and a plurality of through holes 211 are arranged at intervals along the circumferential direction of the disc and all extend along the circumferential direction of the disc. The disc provides a support base for the through hole 211. After the connecting post 22 is inserted into the penetration section 2111 of the through hole 211, the operating portion 29 is rotated to drive the disc to rotate, so that the connecting post 22 is locked into the clamping section 2112. The splicing of the LED display screen, and the operating part 29 directly drives the disc to rotate, the whole structure is simple, the movement of the disc is simple and the accuracy of the movement is good, and the connecting column 22 can be accurately and stably clipped into the clamping section 2112 to connect The reliability and stability are better.

In another embodiment of the present application, referring to Figs. 3 and 4, the provided connecting device 20 further includes a housing 26. The housing 26 is provided with a mounting cavity 261 with an opening, and the disc is rotatably installed在installation cavity 261. Specifically, the housing 26 provides a mounting base for the disk, and the disk is located in the mounting cavity 261, which can prevent the disk from being separated from the connecting column 22 due to the contact of external components with the disk, ensuring the reliability of the splicing of the box body 10, and at the same time It can also protect the disc.

In another embodiment of the present application, referring to FIGS. 3, 4, and 5, a plurality of mounting holes 266 are provided on the bottom surface of the mounting cavity 261 of the connecting device 20, and each mounting hole 266 is There are captive screws 262, and each captive screw 262 is arranged in one-to-one correspondence with each box body 10. Each box body 10 is provided with threaded holes 12, and each captive screw 262 is screwed into each threaded hole 12, respectively. Inside. Specifically, in the process of unscrewing the captive screw 262, the captive screw 262 rotates in the threaded hole 12, thereby driving the box 10 to move closer to or away from the housing 26, thereby making the box 10 relative to the adjacent The box body 10 moves back and forth to ensure that the display screen has a good flatness.

In another embodiment of the present application, referring to FIGS. 3, 4, and 5, a rotating column 213 is provided at the center of the disc of the connecting device 20, and the axis of the rotating column 213 is aligned with the first axis CC Coincident; the cavity bottom surface of the mounting cavity 261 is provided with a rotating hole 263, and the rotating column 213 passes through the rotating hole 263 and rotates in the rotating hole 263. Specifically, the rotating column 213 passes through the rotating hole 263, so that the worker can rotate the disc by holding the end of the column rotating column 213, and its rotating operation is easier. At the same time, the rotating hole 263 supports the rotating column 213 The function of making the rotation of the disc more stable and reliable.

In another embodiment of the present application, referring to FIGS. 3, 4, and 5, the end of the rotating column 213 of the connecting device 20 that passes through the rotating hole 263 is provided with a handle for the staff to hold. The rotating handle 215 is the operating part 29. Specifically, the staff can rotate by rotating the handle 215, and its operation is more time-saving, labor-saving, and convenient and quick.

Further, the rotating handle 215 is fixed on the rotating column 213 by the screw 27, and its installation structure is simple to operate; at the same time, the rotating handle 215 abuts on the housing 26, so that the disk is along the axis of the rotating column 213 on the housing 26. Fixed on.

In another embodiment of the present application, as shown in FIG. 6, a protrusion 212 is provided above the clamping section 2112 of the connecting device 20 in a direction parallel to the first axis CC. The closer the protrusion 212 is to pass through In section 2111, the height of the protrusion 212 is smaller. Specifically, the protrusion 212 is magnetic, and the connecting post 22 is provided with a magnetic part (not shown) that is magnetically attracted to the protrusion 212. When the connecting post 22 is transferred into the clamping section 2112, the magnetic part is along the The end surface of the protrusion 212 gradually rises until it is completely in close contact with the end surface of the protrusion 212. The magnetic adsorption of the protrusion 212 and the magnetic part makes the connection of the connecting column 22 in the clamping section 2112 stable and reliable. The box body 10 The splicing is stable and reliable; at the same time, the closer the protrusion 212 is to the penetration section 2111, the smaller the height of the protrusion 212, and the rise of the end surface of the protrusion 212 also provides a guiding effect for the rotation of the magnetic part, so that the magnetic part can communicate with the protrusion more smoothly. The end face of 212 is tightly attached to improve the reliability of the connection.

In another embodiment of the present application, referring to FIG. 6, the outer peripheral wall of the connecting column 22 of the connecting device 20 is provided with a groove 221 extending in the circumferential direction of the connecting column 22; when the operating portion 29 is located In the locked position, the protrusion 212 is embedded in the groove 221 and forms an interference fit with the groove 221. Specifically, the outer diameter of the connecting post 22 at the groove 221 is smaller than the aperture D2 of the clamping section 2112, and the outer diameter of the connecting post 22 is smaller than the aperture D1 of the through section 2111, then the end of each connecting post 22 passes through the through hole D2. After the section 2111 is aligned with the groove 221 and the penetration section 2111, the operating portion 29 is then rotated, and the peripheral edge of the clamping section 2112 is locked into the groove 221 one by one, that is, the connecting post 22 is clamped in the clamping section 2112, In this way, the spliced boxes 10 are connected as a whole to complete the splicing of the boxes 10; at the same time, when the operating portion 29 drives the through hole 211 to rotate toward the locked position, the protrusion 212 is gradually locked into the groove 221, due to the protrusion The closer the 212 is to the through section 2111, the smaller the height of the protrusion 212. The protrusion 212 gradually fits into the groove 221 until it is in an interference fit with the groove 221, so that the connection between the connecting post 22 and the through hole 211 is more stable and reliable. , The stability and reliability of LED display splicing are good.

In this embodiment, the connecting device 20 has a simple structure, which greatly reduces the cost of the display box 10. At the same time, the connecting device 20 has a small number of components and occupies a small installation space for the display box 10, which is beneficial to Miniaturization and lightweight design of the display box 10.

Further, the protrusion 212 extends along the periphery of the clamping section 2112, so that as the operating portion 29 rotates, the protrusion 212 gradually enters the groove 221, so that the clamping of the connecting post 22 and the through hole 211 is stable and reliable, which is convenient Removal of the connecting post 22 and the through hole 211.

In another embodiment of the present application, referring to FIG. 6, the connecting portions 13 of the connecting device 20 are provided at even intervals along the circumferential direction of the first axis CC and are centered symmetrically about the first axis CC; each The mating portions 28 are arranged at even intervals along the circumferential direction of the first axis CC and are centered symmetrically with respect to the first axis CC. Specifically, the connecting portion 13 and the mating portion 28 are arranged at even intervals along the circumferential direction of the first axis CC with respect to the first axis CC, and their structures are arranged symmetrically, so that the mating portion 28 does not need to be connected with the specific connecting portion 13, so that the box During the splicing process of the body 10, the connecting operation of the mating portion 28 and the connecting portion 13 is simpler and more versatile.

In another embodiment of the present application, the connecting device 20 of the connecting device 20 provided further includes an elastic member 23 connected to the connecting portion 13 and elastically moving in a direction parallel to the first axis C-C. Specifically, one end of the elastic piece 23 is connected to the box body 10, and the other end of the elastic piece 23 is connected to the connecting portion 13, so when the operating portion 29 is rotated to the locked position, the groove wall surface of the groove 221 protrudes along The end surface of 212 slides in the clamping section 2112. As the height of the protrusion 212 becomes smaller and smaller as it approaches the penetration section 2111, the connecting column 22 gradually approaches the mating portion 28 along the axis of the connecting column 22, and gradually compresses the elasticity. After the operating portion 29 is rotated to the locked position, under the elastic action of the elastic member 23, the groove wall surface of the groove 221 tightly abuts against the end surface of the protrusion 212, thereby connecting the clamping section 2112 and the connecting post 22 Locking makes the connection between the boxes 10 stable and reliable.

Further, the outer peripheral wall of the connecting column 22 is provided with a first limiting protrusion 222, the first limiting protrusion 222 is located on the side of the groove 221 close to the box body 10, and the box body 10 is provided with a fixing hole 11 for connecting The end of the column 22 passes through the fixing hole 11 and then is fixedly connected with the fastener 24, the first limiting protrusion 222 abuts on the surface of the box 10 facing the disc, and the elastic member 23 is sleeved on the fastener 24 , The two ends of the elastic member 23 respectively abut on the surface of the box body 10 facing away from the disk and the fastener 24. The fixing hole 11 on the display screen provides installation space for the connecting column 22 and supports the connecting column 22. The fastener 24 is used to fix the elastic member 23 and the connecting column 22 to prevent the connecting column 22 from falling off the fixing hole 11.

In another embodiment of the present application, referring to FIGS. 3 and 4, the connecting device 20 provided further includes a positioning ring 25, the positioning ring 25 is sleeved on the fastener 24, and the positioning ring 25 is located on the box body 10. Between the surface facing away from the disk and the elastic member 23, the elastic member 23 is pressed against the positioning ring 25. Specifically, the inner hole of the positioning ring 25 can serve as a guide for the movement of the fastener 24 to prevent the locking column from being skewed and jammed. The positioning ring 25 separates the elastic member 23 from the box body 10 to protect the box body. The role of 10.

Preferably, the elastic member 23 is a spring.

Further, the fastener 24 may be a screw or a screw 27; the elastic member 23 is sleeved on the screw of the screw or the screw 27, and the end of the elastic member 23 is pressed against the nut of the screw or the screw 27.

In another embodiment of the present application, the connecting device 20 of the connecting device 20 provided further includes an elastic member 23 connected to the mating portion 28 and elastically moving in a direction parallel to the first axis C-C. Specifically, one end of the elastic piece 23 is connected to the movable portion 21, and the other end of the elastic piece 23 is connected to the mating portion 28. Then, when the operating portion 29 is rotated to the locked position, the groove wall surface of the groove 221 protrudes along The end surface of 212 slides in the clamping section 2112. As the height of the protrusion 212 becomes smaller and smaller as it gets closer to the penetration section 2111, the connecting column 22 gradually approaches the connecting portion 13 along the axis of the connecting column 22, and gradually stretches. The elastic member 23, after the operating portion 29 is rotated to the locked position, under the elastic action of the elastic member 23, the groove wall surface of the groove 221 tightly abuts against the end surface of the protrusion 212, thereby connecting the clamping section 2112 with the connecting post 22 is locked so that the connection between the boxes 10 is stable and reliable.

In another embodiment of the present application, the operating portion 29 of the connecting device 20 is provided on the surface of the movable portion 21 in a direction parallel to the first axis CC; when the operating portion 29 is along the first direction around the first axis CC When rotating the preset angle, the operating portion 29 switches from the unlocked position to the locked position; when the operating portion 29 rotates about the first axis CC in the second direction opposite to the first direction by a preset angle, the operating portion 29 switches from the locked position to Unlock position; the preset angle is greater than or equal to 10° and less than or equal to 50°. Specifically, the preset angle may be 10°, 15°, 20°, 25°, 30°, 35°, 40°, 45°, or 50°; within the preset angle range, the rotation angle of the operating portion 29 It is suitable to facilitate the installation of the connecting device 20, and the splicing of the box body 10 is stable and reliable; if the preset angle is set too small, the rotation angle of the disc is too small, and the area where the connecting column 22 is clamped into the clamping section 2112 If the preset angle is set too large, the extension length of the through hole 211 is too long, and the structural strength of the entire disc is weak and easy to damage.

Further, the preset angle range may be 20°-40°, and the preset angle range may also be 25°-35°; preferably, the preset angle is 30°.

In another embodiment of the present application, referring to FIGS. 2, 3, and 4, a plurality of connecting holes 265 are provided on the bottom surface of the mounting cavity 261 of the connecting device 20. When the connecting device 20 is installed When the box body 10 is installed, the end portions of the connecting posts 22 facing away from the box body 10 are inserted into the connecting holes 265 in a one-to-one correspondence. Specifically, when the housing 26 is buckled at the splicing place of the boxes 10, the connecting posts 22 are inserted in the connecting holes 265 one-to-one, so that the boxes 10 can be connected together preliminarily to avoid subsequent In the process of rotating the disc, the connecting column 22 is forced to cause the box body 10 to fall.

In another embodiment of the present application, referring to FIG. 2, the bottom surface of the mounting cavity 261 of the connecting device 20 is provided with a limiting arc hole 264 centered on the first axis CC, and the limiting arc The shaped hole 264 extends along the rotation direction of the disc, and the disc is provided with a second limiting protrusion 214, and the second limiting protrusion 214 extends into the limiting arc-shaped hole 264. Specifically, the circumferential angle corresponding to the limiting arc-shaped hole 264 is the preset angle, so during the process of rotating the disc, the second limiting protrusion 214 moves in the limiting arc-shaped hole 264, and when the second limiting arc When the positioning protrusion 214 moves to the two ends of the limiting arc, the second limiting protrusion 214 cannot move, thereby restricting the excessive rotation of the disc and causing damage to the connecting column 22. Further, in a specific process of use, when the disc is rotated to the end of the connecting post 22 in the penetration section 2111 of the groove 221 facing away from the clamping section 2112, the connecting device 20 is in the unlocked position, and the connecting post 22 can be removed from Disengage from the penetration section 2111, so as to realize the separation of the box body 10; when the disc rotates to the end of the clamping section 2112 facing away from the penetration section 2111, the connecting device 20 is in a locked state, and the connecting post 22 is completely engaged in the concave In the clamping section 2112 of the groove 221, the splicing of the box body 10 is realized; at the same time, during the rotation of the disc, the position of the second limiting protrusion 214 in the limiting arc groove can be used to determine the connection Whether the post 22 is locked into the locking section 2112 of the groove 221 can determine whether the connecting device 20 is in the unlocked state or the locked state, which is convenient for the operation of the staff.

The above are only preferred embodiments of this application and are not intended to limit this application. Any modification, equivalent replacement and improvement made within the spirit and principle of this application shall be included in the protection scope of this application. Inside.

Claims

A connecting device for an LED display screen, the LED display screen comprising a plurality of boxes, each of the boxes is provided with a connecting part for detachably connecting the connecting device; characterized in that the connecting device include:

A mating part, which cooperates with the connecting part and forms a detachable connection;

The movable part is used for fixed connection or forming the mating part;

The operating part is operated by the user to drive the movable part and the matching part to rotate about the first axis; the operating part is connected to or formed on the movable part;

Wherein, the operating portion has a locked position and an unlocked position. When the operating portion is in the locked position, the connecting portion and the mating portion form a fixed connection; when the operating portion is in the unlocked position, The connecting part is movable relative to the matching part.
The connection device according to claim 1, wherein:

The connecting device includes a plurality of the mating parts; each of the connecting parts and each of the mating parts are arranged in a one-to-one correspondence and respectively form a detachable connection.
The connection device according to claim 1, wherein:

The connecting portion is a connecting column extending in a direction parallel to the first axis, and the mating portion is a through hole that fits with the connecting column.
The connection device according to claim 1, wherein:

The mating part is a connecting post extending in a direction parallel to the first axis, and the connecting part is a through hole that is mated with the mating part.
The connection device according to claim 3, characterized in that:

The through hole includes a clamping section and a penetration section communicating with the clamping section along the circumference of the first axis, and the hole diameter of the penetration section is larger than the hole diameter of the clamping section.
The connecting device according to claim 3, wherein the through hole extends in an arc shape along the circumferential direction of the first axis.
The connecting device according to claim 5, wherein the outer diameter of the connecting column is larger than the hole diameter of the clamping section, and the outer diameter of the connecting column is smaller than the hole diameter of the perforating section.
The connection device according to claim 5, wherein:

A protrusion is provided above the clamping section along a direction parallel to the first axis, and the closer the protrusion is to the penetration section, the smaller the height of the protrusion.
8. The connecting device according to claim 8, wherein the protrusion is magnetic, and the connecting column is provided with a magnetic part that is magnetically attracted to the protrusion.
The connecting device according to claim 8, wherein the outer peripheral wall of the connecting column is provided with a groove extending along the circumferential direction of the connecting column; when the operating portion is in the locked position, the convex It is embedded in the groove and forms an interference fit with the groove.
8. The connecting device according to claim 8, wherein the protrusion extends along the periphery of the clamping section.
The connecting device according to claim 3, wherein the matching portion adopts a structure in which a plurality of through holes are connected.
3. The connecting device according to claim 3, wherein the movable portion is a circular disk, and a plurality of the through holes are arranged at intervals along the circumferential direction of the circular disk and all extend along the circumferential direction of the circular disk.
The connecting device according to claim 13, wherein the connecting device further comprises a housing, and an installation cavity with an opening is provided on the housing, and the disc is rotatably installed in the installation cavity .
The connecting device according to claim 14, characterized in that: a rotating column is provided at the center of the disc, and the axis of the rotating column coincides with the first axis; the cavity bottom surface of the mounting cavity is provided A rotating hole, the rotating column passes through the rotating hole and rotates in the rotating hole.
The connecting device according to claim 15, wherein the end of the rotating column passing through the rotating hole is provided with the rotating handle for the staff to hold, and the rotating handle is the operating Department.
The connection device according to claim 14, characterized in that: the cavity bottom surface of the mounting cavity is provided with a plurality of mounting holes, each of the mounting holes is provided with a captive screw, and each of the captive screws is respectively It is arranged in one-to-one correspondence with each of the boxes.
The connecting device according to claim 2, wherein each of the connecting portions is arranged at even intervals along the circumferential direction of the first axis and is centered symmetrical about the first axis; each of the matching portions is arranged along the The first axis is arranged at even intervals in the circumferential direction and is centered symmetrical about the first axis.
The connection device according to claim 1, wherein:

The connecting device further includes an elastic member that is connected to the connecting portion or the mating portion and elastically moves in a direction parallel to the first axis.
The connection device according to claim 1, wherein:

The operating part is arranged on the surface of the movable part in a direction parallel to the first axis; when the operating part rotates around the first axis by a predetermined angle in the first direction, the operating part moves from the The unlocking position is switched to the locked position; when the operating part is rotated about the first axis in a second direction opposite to the first direction by a preset angle, the operating part is switched from the locked position to The unlocking position; the preset angle is greater than or equal to 10° and less than or equal to 50°.