CN209324864U - Display screen splicing apparatus and LED display - Google Patents

Abstract

The utility model relates to a kind of display screen splicing apparatus and LED displays, display screen splicing apparatus includes: locking assembly, including lock shaft and locking pearl, accepting hole is provided on the lock shaft, the locking pearl is contained in the accepting hole, and the accepting hole has opening, so that the accepting hole is in communication with the outside, the locking pearl can move in the accepting hole, be all contained in the accepting hole or at least partly lean out outside the accepting hole；And lock set is solved, including handle and release lever, the handle are fixedly connected on the lock shaft, the release lever is rotationally connected with the handle, and one end is set to and is easy to by the position of external world's touching, the other end fastens with the lock shaft, to prevent the lock shaft from rotating.LED display includes the movement for engaging prevention lock shaft of display screen splicing apparatus, display screen splicing apparatus and mosaic display screen by release lever and ratchet, can prevent maloperation solution lock set from leading to falling for cabinet.

Description

Display screen splicing apparatus and LED display

Technical field

The utility model relates to LED displays, more particularly to a kind of display screen splicing apparatus and LED display.

Background technique

Large-scale LED display is usually to be formed by multiple LED box unit spliceds, at present the assembly side of LED display Two kinds of formula, a kind of directly to be connected between cabinet and cabinet using connecting plate, one is give cabinet by lifting lock to connect It picks up and, many large-size screen monitors are used to lease occasion and need that quickly installation and dismantling, connecting plate erection method are aobvious to it in reality It cannot so be applicable in.Traditional splicing construction is not since the locking of mounting device is firm, and in splicing, in fact it could happen that accidentally grasps Make, so that the cabinet of splicing loosens.

Utility model content

Based on this, it is necessary to for traditional splicing construction in splicing, in fact it could happen that maloperation, so that splicing The problem of cabinet loosens provides a kind of display screen splicing apparatus and LED display.

The utility model first aspect provides a kind of display screen splicing apparatus, for the splicing between LED box unit, packet It includes:

Locking assembly, including lock shaft and locking pearl, are provided with accepting hole on the lock shaft, the locking pearl is contained in In the accepting hole, the accepting hole has opening, so that the accepting hole is in communication with the outside, the locking pearl can be in institute It states in accepting hole and moves, be all contained in the accepting hole or at least partly lean out outside the accepting hole；And

Lock set is solved, including handle and release lever, the handle are fixedly connected on the lock shaft, the release lever It being rotationally connected with the handle, and one end is set to and is easy to by the position of external world's touching, the other end fastens with the lock shaft, To prevent the lock shaft from rotating, when the release lever is disengaged from the lock shaft, the handle is turned to pre- If position, drive the lock shaft mobile, the locking pearl retracts in the accepting hole.

Ratchet is provided on the lock shaft in one of the embodiments, the release lever is mutually nibbled with the ratchet It closes.

The locking assembly includes locking wheel in one of the embodiments, and the locking wheel is sheathed on the lock shaft On, and be threadedly engaged with the lock shaft, the handle sleeve is set on the lock shaft, and is fixedly connected with the locking wheel.

It in one of the embodiments, further include shackle, the lateral wall of the locking wheel is provided with an annular groove, institute Shackle is stated to be embedded into the annular groove, with by the shackle by the display screen splicing apparatus and LED box Unit is fixedly connected.

The lock shaft includes locking outer shaft and locking inner shaft in one of the embodiments, and the accepting hole is set to On the locking outer shaft, the locking inner shaft is set in the locking outer shaft, and the locking outer shaft is set in the locking Outside axis, the locking wheel is threadedly engaged with the locking outer shaft, and the locking outer shaft can be mobile relative to the locking inner shaft, and In the moving process of the locking outer shaft, the locking inner shaft generates the locking pearl to squeeze or be detached from and squeeze.

The second through-hole is equipped in the locking outer shaft in one of the embodiments, the locking inner shaft is contained in described In second through-hole, the inner wall of second through-hole is provided with stopper protrusion, and the stopper protrusion is for preventing the locking inner shaft It is excessively mobile.

The locking inner shaft includes the stub end being oppositely arranged and small head end in one of the embodiments, and described big It is connected between head end and the small head end by a chamfered transition, the stopper protrusion corresponds to the small head end setting, and prevents The stub end passes through the stopper protrusion；When the stub end is moved to position corresponding with the accepting hole, having will The locking pearl squeezes out the trend of the accepting hole, when the small head end is moved to position corresponding with the accepting hole, no The locking pearl is squeezed again.

It in one of the embodiments, further include pushing component, the pushing component includes impeller-hub, and the impeller-hub is extremely Small part is extend into the locking outer shaft, and is connected to the locking inner shaft, to push the relatively described lock of locking inner shaft Tight outer shaft is mobile, so that the locking pearl be made to lean out the accepting hole or retract in the accepting hole.

The pushing component further includes elastic component in one of the embodiments, and one end of the elastic component is fixedly connected In the locking outer shaft, the other end is fixedly connected on the impeller-hub, the elastic component under natural conditions, in the locking The locking pearl is squeezed out the accepting hole by axis, and the display screen splicing apparatus is in locking state.

Above-mentioned display screen splicing apparatus, by the fixation of handle and locking wheel, being threadedly engaged for locking wheel and lock shaft makes Handle rotation drives the rotation of lock shaft, and then realized and fixed by steel ball and LED box unit, by release lever with The cooperation of ratchet realizes the self-locking of display screen splicing apparatus, even if handle is turned to unlocked position, also due to solution Lock handle and engaging for ratchet and the movement for preventing lock shaft, avoid since maloperation leads to falling for cabinet, enhance spelling The safety of termination process.

The utility model second aspect provides a kind of LED display, and mosaic display screen includes at least two LED cabinet lists Member and splicing construction are fixedly connected between LED box unit by splicing construction, and the splicing construction is any of the above-described described Display screen splicing apparatus.

Above-mentioned LED display realizes the splicing between LED box unit by the fixation of splicing construction.Splicing construction Handle and locking wheel fixation, locking wheel and lock shaft are threadedly engaged so that handle rotation drives the rotation of lock shaft, into And realized and fixed by steel ball and LED box unit, in the cooperation for passing through release lever and ratchet, realize display screen splicing dress The self-locking set, even if handle is turned to unlocked position, also due to release lever prevents to lock with engaging for ratchet The movement of axis avoids since maloperation leads to falling for cabinet, enhances the safety of splicing.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the display screen splicing apparatus of an embodiment of the present invention；

Fig. 2 is the configuration schematic diagram of the display screen splicing apparatus of an embodiment of the present invention；

Fig. 3 is the partial structural diagram of the display screen splicing apparatus of an embodiment of the present invention；

Fig. 4 is the schematic diagram of the section structure of the display screen splicing apparatus of an embodiment of the present invention；

Fig. 5 is the schematic diagram of the section structure of the mosaic display screen of an embodiment of the present invention；

Fig. 6 is the structural schematic diagram of the latch segment of the mosaic display screen of an embodiment of the present invention.

Specific embodiment

The utility model is more fully retouched below with reference to relevant drawings for the ease of understanding the utility model, It states.The better embodiment of the utility model is given in attached drawing.But the utility model can come in many different forms It realizes, however it is not limited to embodiments described herein.On the contrary, the purpose of providing these embodiments is that making practical new to this The disclosure of type understands more thorough and comprehensive.

It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ", " right side " and similar statement for illustrative purposes only, are not meant to be the only embodiment.

Unless otherwise defined, all technical and scientific terms used herein are led with the technology for belonging to the utility model The normally understood meaning of the technical staff in domain is identical.Terminology used in the description of the utility model herein only be The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term " and or " used herein packet Include any and all combinations of one or more related listed items.

Referring to Fig. 1, the structure for illustratively showing the display screen splicing apparatus 100 of an embodiment of the present invention is shown It is intended to, the display screen splicing apparatus 100 is applied to the splicing between the LED box unit of LED display, can make LED case Close, firm splicing is realized between body unit, and display screen splicing apparatus 100 will splice between two LED box units After fixation, can be realized it is self-locking, to avoid loosening so that producing between LED box unit due to display screen splicing apparatus 100 Raw gap, ensure that the display effect for the LED display being spliced to form in structural level.

As shown in Figure 1, display screen splicing apparatus 100 may include locking assembly 10 and solution lock set 20, lock set 20 is solved It is fixedly connected on locking assembly 10, solution lock set 20 has first position and the second position with respect to locking assembly 10, with locking The rotation of component 10, locking assembly 10 move between the first location and the second location, when solution lock set 20 is in first position When, locking assembly 10 is in locking state, when solve lock set 20 second position is turned to by first position when, locking assembly 10 by Locking state is changed into unlocked state.

Locking assembly 10 may include lock shaft 11 and locking pearl 12, is provided with accepting hole 11a on lock shaft 11, locks pearl 12 are contained in accepting hole 11a, and accepting hole 11a has an opening, so that accepting hole 11a is in communication with the outside, with locking group Part 10 switches between locking state and unlocked state, and locking pearl 12 can move in accepting hole 11a, is all contained in receiving It leans out in the 11a of hole or at least partly outside accepting hole 11a.In one or more embodiments, in order to avoid locking pearl 12 is being dismantled When fall so that component damage, the aperture of the opening of accepting hole 11a is less than the outer diameter of locking pearl 12, to prevent locking pearl 12 are detached from accepting hole 11a.

It is appreciated that there is the counter structure cooperated with locking pearl 12 in LED box unit, so that locking pearl 12 is pressed from both sides It is held between the counter structure of LED box unit and lock shaft 11.

Fig. 2 and Fig. 3 are please referred to, ratchet 13 is provided on lock shaft 11, solution lock set 20 is meshed with ratchet 13, to prevent Lock shaft relative to LED box unit movement, to realize self-locking.

Referring to Fig. 4, being also provided with sliding slot 14 on lock shaft 11, sliding slot 14 is corresponded on LED box unit and is provided with Locating part 900, locating part 900 are at least partially extend into sliding slot 14, by the cooperation of locating part 900 and sliding slot 14, so that solution When driving lock shaft 11 mobile, locating part 900 can limit the movement of lock shaft 11 lock set 20, avoid lock shaft 11 excessive movement.In the particular embodiment, when locating part 900 is moved to the other end, solution lock set by one end of sliding slot 14 20 are just moved to the second position by first position, and locating part 900 and solution lock set 20 produce linkage as a result, it is ensured that understand The accuracy of lock and locking process.

Fig. 2 and Fig. 4 is please referred to, locking assembly 10 can also include locking wheel 15, and locking wheel 15 is sheathed on lock shaft 11, And be threadedly engaged with lock shaft 11, solution lock set 20 is fixedly connected on locking wheel 15, to drive when solving the rotation of lock set 20 Locking wheel 15 rotates, then being threadedly engaged by locking wheel 15 and lock shaft 11, the rotation of drive lock shaft 11.Specific In embodiment, the position of the close ratchet 13 of lock shaft 11 is provided with external screw thread, and locking wheel 15 is equipped with a perforation 151, perforation Internal screw thread is set in 151, and the internal screw thread in perforation 151 is threadedly coupled with the external screw thread of lock shaft 11, to keep locking wheel 15 solid Due on lock shaft 11.

The lateral wall of locking wheel 15 is provided with an annular groove 153, and display screen splicing apparatus 100 further includes shackle 30, Shackle 30 is embedded into annular groove 153.It, can be by display screen splicing apparatus 100 and LED as a result, by shackle 30 Box unit is fixedly connected.In certain embodiments, shackle 30 is removably connect with LED box unit, as a result, So that realizing quick detachable connection between display screen splicing apparatus 100 and LED box unit, be conducive to the fast Speed Pinyin of display screen It connects, and, when display screen splicing apparatus 100 damages, display screen splicing dress can be completed in the case where not dismantling display screen Set 100 entirety or part replacement.

Referring to Fig. 2, solution lock set 20 may include handle 21 and release lever 23, handle 21 is fixedly connected on lock shaft 11, release lever 23 is rotationally connected with handle 21, and one end is set to and is easy to by the position of external world's touching, the other end and lock shaft 11 fasten,, will be described when the release lever 23 is disengaged from the lock shaft 11 to prevent the rotation of lock shaft 11 Handle 21 turns to predeterminated position, drives the lock shaft 11 mobile, the locking pearl 12 retracts in the accepting hole 11a.

In one or more embodiments, handle 21 is sheathed on lock shaft 11, and is fixedly connected with locking wheel 15, from And in swing handle 21, drive locking wheel 15 to rotate, then drive the movement of lock shaft 11 by locking wheel 15；Release lever 23 are meshed with the ratchet 13 on lock shaft 11, to prevent the movement of lock shaft 11, realize display screen splicing apparatus 100 oneself Locking.In the illustrated embodiment, it is equipped with a cavity 21a in handle 21, is arranged on one of side wall of cavity 21a jagged 21b, release lever 23 are partially housed in cavity 21a, and one end passes through notch 21b and stretches out outside cavity 21a；It is set in cavity 21a It is equipped with a pillar 211, the middle part of release lever 23 corresponds to pillar 211 and is provided with a first through hole 23a, and pillar 211 passes through first Through-hole 23a is rotationally connected with handle 21 so that release lever 23 be enable to rotate around the pillar 211.

Referring to Fig. 3, release lever 23 may include the end of engagement 231 being oppositely arranged and touch end 233, end of engagement 231 It can be meshed to realize the self-locking of display screen splicing apparatus 100 with the ratchet 13 on lock shaft 11, touch end 233 is worn Notch 21b is crossed to stretch out outside cavity 21a.Solving lock set 20 can also include a torsional spring 25, and the end of engagement 231 of release lever 23 is arranged There is a groove 23b, the middle part of torsional spring 25 is sheathed on pillar 211, and one end snaps onto groove 23b, and the other end is connected to handle 21, under the action of torsional spring 25, if under natural conditions, end of engagement 231 maintains and ratchet 13 without external force in release lever 23 Engagement.

By the fixation of handle 21 and locking wheel 15, locking wheel 15 is threadedly engaged with lock shaft 11, so that 21 turns of handle The dynamic rotation for driving lock shaft 11, and then realized and fixed by steel ball and LED box unit, passing through release lever 23 and ratchet 13 cooperation realizes the self-locking of display screen splicing apparatus 100, even if handle 21 is turned to unlocked position, it also can be by In the movement of release lever 23 and ratchet 13 engaged and prevent lock shaft 11, avoid since maloperation leads to falling for cabinet It falls, enhances the safety of splicing.

Referring to Fig. 4, in one or more embodiments, lock shaft 11 may include locking outer shaft 111 and locking inner shaft 113, accepting hole 11a and ratchet 13 are all set on locking outer shaft 111, and locking inner shaft 113 is set in locking outer shaft 111, lock Tight outer shaft 111 is sheathed on outside locking inner shaft 113, and locking wheel 15 is threadedly engaged with locking outer shaft 111, and locking outer shaft 111 being capable of phase It is mobile to locking inner shaft 113, and in the moving process of locking outer shaft 111, locking 113 pairs of locking pearls 12 of inner shaft generate extruding Or it is detached from and squeezes.To drive locking outer shaft 111 mobile relative to locking inner shaft 113, finally lock pearl when handle 21 rotates 12 lock or unlock shape so that being between display screen splicing apparatus 100 and LED box unit in the movement in accepting hole 11a State.

Locking outer shaft 111 can be a hollow cylindrical configuration, inside be equipped with the second through-hole 111a, and locking inner shaft 113 is contained in In second through-hole 111a, accepting hole 11a runs through locking outer shaft 111 in a thickness direction, so that the second through-hole 111a passes through receipts Hold hole 11a and is connected to the external world.Locking outer shaft 111 may include first end 1111 and second end 1113, and first end 1111 is fixed to be connected It is connected to second end 1113, and the outer diameter of first end 1111 and second end 1113 differs, so that first end 1111 and second end 1113 form terrace structure in intersection.When lock shaft 11 is applied to the splicing of two LED box units, one of LED Box unit corresponds to terrace structure and is provided with stepped hole, so that lock shaft 11 is fastened in stepped hole, at least portion of second end 1113 Divide and stretch out outside LED box unit, so that locking wheel 15 is connected to LED box unit, so as to adjust by locking wheel 15 It locks inner shaft 113 and locks the relative movement of outer shaft 111, and convenient for display screen splicing apparatus 100 is fixed on LED box list In member.

Stopper protrusion 1115 has can be set in the inner wall of second through-hole 111a, and stopper protrusion 1115 is for preventing locking inner shaft 113 is excessively mobile, so that locking pearl 12 be made to be stuck.

Locking inner shaft 113 may include the stub end 1131 and small head end 1133 being oppositely arranged, and stub end 1131 with it is small It is connected between head end 1133 by a chamfered transition, the corresponding small head end 1133 of stopper protrusion 1115 is arranged, and prevents stub end 1131 pass through stopper protrusion 1115.When stub end 1131 is moved to position corresponding with accepting hole 11a, pearl will be locked by having 12 squeeze out the trend of accepting hole 11a, accepting hole 11a are leant out to make to lock pearl 12, when small head end 1133 is moved to and accepting hole When the corresponding position 11a, locking pearl 12 is no longer squeezed, locking pearl 12 retracts in accepting hole 11a under the action of inertia, stub end Inclined-plane between 1131 and small head end 1133 provides transitional function for the retraction for locking pearl 12 or extruding, to avoid stuck locking pearl 12.It is appreciated that being retracted in accepting hole 11a under the action of inertia to make to lock pearl 12, closer to the second through-hole 111a's The aperture of one end, accepting hole 11a is bigger.

Fig. 2 and Fig. 4 are please referred to, in one or more embodiments, display screen splicing apparatus 100 can also include promotion group Part 40, pushing component 40 include impeller-hub 41, and impeller-hub 41 is at least partially extend into the second through-hole 111a, and is connected to locking Inner shaft 113, it is mobile relative to locking outer shaft 111 to push locking inner shaft 113, so that locking pearl 12 be made to lean out accepting hole 11a or contracting It returns in accepting hole 11a.In the particular embodiment, slot has can be set in one end of the close locking inner shaft 113 of impeller-hub 41 The small head end 1133 of 41a, locking inner shaft 113 are inserted into slot 41a.

Pushing component 40 can also include elastic component 43, and one end of elastic component 43 is fixedly connected on locking outer shaft 111, separately One end is fixedly connected on impeller-hub 41, and illustratively, elastic component 43 can be fixed in stopper protrusion 1115, thus, impeller-hub 41 are connected to locking outer shaft 111 by elastic component 43.Specifically when in use, elastic component 43 in its natural state, locks inner shaft 113 Locking pearl 12 is squeezed out into accepting hole 11a, display screen splicing apparatus 100 is in locking state, in unlock, pushes locking inner shaft 113 is mobile, when small head end 1133 is moved at accepting hole 11a, can unlock.

By the way that pushing component 40 is arranged, so that display screen splicing apparatus 100 has dual anti-misoperation, even if by handle 21 It is moved to unlocked position, while unblock button is pressed, as long as not pushing impeller-hub 41, locking pearl 12 still can not be moved, from And the splicing between LED box unit can not be released.

Pushing component 40 can also include promoting button 45, and promoting button 45 is fixedly connected on impeller-hub 41, so as to Make impeller-hub 41 mobile by promoting button 45.It is appreciated that promoting button 45 is apart from handle 21 for the ease of one-handed performance Distance it is unsuitable too far so that it is singlehanded push handle 21 after, promoting button 45 can be touched by thumb, is pushed away with movement Moving axis 41.

Above-mentioned display screen splicing apparatus 100, by the fixation of handle 21 and locking wheel 15, locking wheel 15 and lock shaft 11 It is threadedly engaged, so that the rotation of handle 21 drives the rotation of lock shaft 11, and then is realized and fixed by steel ball and LED box unit, By the cooperation of release lever 23 and ratchet 13, the self-locking of display screen splicing apparatus 100 is realized, even if by handle 21 Turn to unlocked position, also due to the movement of release lever 23 and ratchet 13 engaged and prevent lock shaft 11, avoid by Lead to falling for cabinet in maloperation, enhances the safety of splicing.

5 are please referred to, the utility model also provides a kind of LED display 200, and LED display 200 includes at least two LED Box unit 210 and splicing construction 220 are fixedly connected between LED box unit 210, splicing construction by splicing construction 220 220 can be the display screen splicing apparatus 100 of any of the above-described embodiment.

Please continue to refer to Fig. 6, LED box unit 210 includes latch segment 2110, and latch segment 2110 is provided with third through-hole 210a and container 210b, container 210b are connected to third through-hole 210a, lock shaft can pass through third through-hole 210a and incite somebody to action Two splicings of LED box unit 210 are fixed, and when splicing construction 220 is in locking state, locking pearl is at least partially housed in receipts It is partially fixed with a wherein LED box unit 210 to make splicing construction 220 in tank 210b, then abutted by locking wheel In another LED box unit 210, to keep two box units relatively fixed.

Above-mentioned LED display 200 realizes the spelling between LED box unit 210 by the fixation of splicing construction 220 It connects.The fixation of the handle and locking wheel of splicing construction 220, locking wheel and lock shaft are threadedly engaged, so that handle rotation drives The rotation of lock shaft, and then realized and fixed by steel ball and LED box unit 210, in the cooperation for passing through release lever and ratchet, The self-locking of display screen splicing apparatus is realized, even if handle is turned to unlocked position, also due to release lever and spine The engagement of wheel and the movement for preventing lock shaft, avoid and enhance the peace of splicing since maloperation leads to falling for cabinet Quan Xing.

Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited In contradiction, all should be considered as described in this specification.

Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed, But it cannot be understood as the limitations to utility model patent range.It should be pointed out that for the common skill of this field For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to The protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.

Claims (10)

1. a kind of display screen splicing apparatus, for the splicing between LED box unit characterized by comprising

Locking assembly, including lock shaft and locking pearl, accepting hole is provided on the lock shaft, described in the locking pearl is contained in In accepting hole, the accepting hole has opening, so that the accepting hole is in communication with the outside, the locking pearl can be in the receipts Hold in hole and move, be all contained in the accepting hole or at least partly lean out outside the accepting hole；And

Lock set, including handle and release lever are solved, the handle is fixedly connected on the lock shaft, the release lever rotation It is connected to the handle, and one end is set to and is easy to by the position of external world's touching, the other end fastens with the lock shaft, with resistance Only the handle is turned to default position when the release lever is disengaged from the lock shaft by the lock shaft rotation It sets, drives the lock shaft mobile, the locking pearl retracts in the accepting hole.

2. display screen splicing apparatus according to claim 1, which is characterized in that be provided with ratchet, institute on the lock shaft Release lever is stated to be meshed with the ratchet.

3. display screen splicing apparatus according to claim 1, which is characterized in that the locking assembly includes locking wheel, institute It states locking wheel to be sheathed on the lock shaft, and is threadedly engaged with the lock shaft, the handle sleeve is set on the lock shaft, And it is fixedly connected with the locking wheel.

4. display screen splicing apparatus according to claim 3, which is characterized in that it further include shackle, the locking wheel Lateral wall be provided with an annular groove, the shackle is embedded into the annular groove, with by the shackle by institute Display screen splicing apparatus is stated to be fixedly connected with LED box unit.

5. display screen splicing apparatus according to claim 3, which is characterized in that the lock shaft includes locking outer shaft and lock Tight inner shaft, the accepting hole are set on the locking outer shaft, and the locking inner shaft is set in the locking outer shaft, the lock Tight outer shaft is set to outside the locking inner shaft, and the locking wheel is threadedly engaged with the locking outer shaft, and the locking outer shaft can It is mobile relative to the locking inner shaft, and in the moving process of the locking outer shaft, the locking inner shaft produces the locking pearl It is raw to squeeze or be detached from extruding.

6. display screen splicing apparatus according to claim 5, which is characterized in that it is logical to be equipped with second in the locking outer shaft Hole, the locking inner shaft are contained in second through-hole, and the inner wall of second through-hole is provided with stopper protrusion, the backstop Protrusion is for preventing the locking inner shaft from excessively moving.

7. display screen splicing apparatus according to claim 6, which is characterized in that the locking inner shaft includes being oppositely arranged Stub end and small head end, and connected between the stub end and the small head end by a chamfered transition, the stopper protrusion pair The small head end setting is answered, and the stub end is prevented to pass through the stopper protrusion；When the stub end is moved to and the receipts When holding the corresponding position in hole, there is the trend that the locking pearl is squeezed out to the accepting hole, when the small head end is moved to and institute When stating the corresponding position of accepting hole, the locking pearl is no longer squeezed.

8. display screen splicing apparatus according to claim 5, which is characterized in that it further include pushing component, the promotion group Part includes impeller-hub, and the impeller-hub is at least partially extend into the locking outer shaft, and is connected to the locking inner shaft, to push away It is mobile relative to the locking outer shaft to move the locking inner shaft, to make the locking pearl lean out the accepting hole or retract the receipts Hold in hole.

9. display screen splicing apparatus according to claim 8, which is characterized in that the pushing component further includes elastic component, One end of the elastic component is fixedly connected on the locking outer shaft, and the other end is fixedly connected on the impeller-hub, in the elasticity Under natural conditions, the locking pearl is squeezed out the accepting hole to part by the locking inner shaft, and the display screen splicing apparatus is in Locking state.

10. a kind of LED display, mosaic display screen includes at least two LED box units and splicing construction, LED box unit Between be fixedly connected by splicing construction, which is characterized in that the splicing construction be the described in any item displays of claim 1-9 Shield splicing apparatus.