CN103267048B

CN103267048B - Quick connection lock of LED (light emitting diode) display screen box and LED display screen

Info

Publication number: CN103267048B
Application number: CN201210471862.3A
Authority: CN
Inventors: 周伟; 邱冠华
Original assignee: SHENZHEN TOPLED OPTO-ELECTRONIC TECHNOLOGY Co Ltd
Current assignee: Shenzhen Biaomei Lighting Design Engineering Co.,Ltd.
Priority date: 2012-11-20
Filing date: 2012-11-20
Publication date: 2015-04-22
Anticipated expiration: 2032-11-20
Also published as: CN103267048A

Abstract

The invention discloses a quick connection lock of an LED (light emitting diode) display screen box and an LED display screen, which aims at solving the problem of the inconvenience in packaging and carrying caused by the larger-thickness shape of an existing connection lock. The quick connection lock of the LED display screen box comprises a lock body I, a turntable, a lock handle, a cylindrical pin I, a torsion spring I, a lock body II, a pressing block, a linkage plate, a hanging hook, a positioning pin and a rectangular steel ring; by rotating the lock handle, the turntable is driven to rotate for 90 degrees, a large cylinder and a small cylinder, which are eccentrically arranged on the turntable are simultaneously enabled to rotate, the large cylinder drives the hanging hook, the hanging hook hooks the steel ring, so that the lock plays a role in locking and releasing; and the small cylinder drives the linkage plate, and the linkage plate drives the positioning pin, so that the positioning pin plays a role in leveling and withdrawing while the lock is locked and released. By utilizing the lock, multiple LED display screen boxes can be connected together to form a large LED display screen.

Description

LED display casing rapid connecting lock and LED display

Technical field

The present invention relates to a kind of coupling arrangement, especially a kind of coupling arrangement of LED display casing; Also relate to a kind of LED display using this connection set to be stitched together.

Background technique

LED display by multiple LED display casing with left and right and/or be arranged above and below and be linked together and formed.In order to connect these LED display casings, joining method conventional is at present exactly undertaken connecting by the higher tinsel of a bulk strength and screw and lock.But such joining method needs many people to assist just can complete usually, and its whole splicing length consuming time, efficiency are low.In order to head it off, a lot of inventor devises new coupling arrangement or claims connecting lock on the basis of conventional art, the patent No. is 201110102759.7, and notification number is 102168702A, and denomination of invention is exactly one of them for " lock catch connecting device, LED box and LED display ".

Disclosed in this patent, lock catch connecting device comprises buckling module, plug-in module and driver module.This device can reach the function of locking two LED display casings, and the locking speed that effectively improve between LED box and casing, but the eccentric mechanism due to its inside is designed to perpendicular to LED box surface, thus connection set is made to become thick and heavy, its part always exceeds the space of LED box own, thus causes the inconvenience of LED box packaging and carrying aspect.

Secondly, general LED display casing is all separately installed with signal air plug head and the power supply air plug head of input and output, the transmission of LED display signal and electric current is all generally after all LED display box body splicings complete, and has been come by the signal air plug head of manual connect box outside and power supply air plug head.After the connection of signal and power supply completes, the cable played between two the air plug heads connecting input and output is exposed outside in LED box.Such assembly method makes LED display packaging efficiency low, and exposed numerous cables also have impact on the attractive in appearance of the LED display back side.

Summary of the invention

The object of the invention is the above-mentioned defect overcome, and a kind of LED display casing rapid connecting lock is provided, the structural design of this lock makes it more frivolous, after it being assemblied in LED display casing, the space of LED display casing can be reduced, bring very large convenience therefore to LED display casing packaging and carrying.

Another object of the present invention is extraterrestrial except reaching above-mentioned order, can also while two LED display casings that locking is adjacent, the signal air plug head of automatic connect box outside and power supply air plug head, and make the cable of signal air plug head and power supply air plug head be hidden in the inside of casing, can't see cable from the display screen body back side, thus make the back side of shielding body seem neat, attractive in appearance and improve the efficiency connected.

3rd object of the present invention is to provide a kind of LED display using above-mentioned LED display casing rapid connecting lock to be stitched together.

In order to realize first above-mentioned object, following technological scheme can be adopted: the LED display casing rapid connecting lock of this programme comprises:

One lock body I, this lock body I comprises: the base plate I of a rectangle, and the right and left of the Lower Half of the base plate I of this rectangle is respectively equipped with the side plate I of a vertical protrusion; A recessed rectangle pit I is provided with between two side plate I; The through hole of a rectangle is provided with at the upper middle part of this rectangle pit I; Below the through hole of this rectangle, be provided with the rectangle key seat I of a projection, the center of this rectangle key seat I is provided with a positioning pin hole I, and the axis of this positioning pin hole I is on the longitudinal center face of base plate I; The flat board of one " convex " font is upwards also connected with at the end face of this rectangle key seat I; The through hole of a circle is provided with at the center of the first half of the base plate I of rectangle; In the bottom surface of the first half of the base plate I of rectangle, the surrounding of circular through hole is provided with a rectangle pit II; The female thread screw hole I that one is installed lock body I is respectively equipped with at the corner place of the base plate I bottom surface of rectangle;

One rotating disk, this rotating disk comprises an oblate post, the through hole sliding fit of the circle in the diameter of this oblate post and lock body I, and the thickness that its thickness equals base plate I deducts the degree of depth difference of rectangle pit II; The upper surface of this oblate post is provided with two vertical protrusion and the otic placode I be parallel to each other, otic placode I is respectively equipped with a mutual cylinder pin hole I that is corresponding, level; Below this oblate post, be provided with one be positioned at a slightly large circular bottom plate on same shaft axis with it, the lower surface of circular bottom plate is provided with small one and large one cylindrical body of two vertical protrusion, these two cylindrical shaft axiss in the horizontal plane subpoint are positioned on same circle, and the cylinder pin hole axes normal on its line and two otic placode I, the degree of depth of rectangle pit II that wherein height of projection of large cylinder equals in lock body I deducts the difference of circular bottom plate thickness, and the height of projection of small cylinder equals the thickness of the egative film I in following linkage piece 70;

One lock handle, this lock handle comprises the handle of a long strip, the dual-side of the upper end near this handle is respectively equipped with an otic placode II that is symmetrical, that inwardly stretch, these two otic placode II centers are respectively equipped with a mutual cylinder pin hole II that is corresponding, level, the equal diameters of cylinder pin hole II and cylinder pin hole I; Distance between these two otic placode II inner side surfaces is slightly larger than the distance between two otic placode I outer side surfaces;

The diameter of one straight pin I, this straight pin I equals the diameter of cylinder pin hole II and cylinder pin hole I;

One torsion spring I; The internal diameter of this torsion spring I is slightly larger than the diameter of straight pin I;

Load in the through hole that above-mentioned rotating disk is circular from lock body I, the upper surface of its circular bottom plate and the upper surface of rectangle pit II are affixed; Straight pin I is through the cylinder pin hole II in lock handle and rotating disk and cylinder pin hole I, and torsion spring I is sleeved on the middle part of straight pin I, and the strut at its two ends supports on the oblate capital face in lock handle bottom surface and rotating disk respectively, lock handle and rotating disk and lock body I is assembled together; Also comprise:

One lock body II, this lock body II comprises: the base plate II of a rectangle, and the right and left of the base plate II of this rectangle is respectively equipped with the side plate II of a vertical protrusion; Be provided with the rectangle key seat II of a projection in base plate II top edge central authorities, the center of this rectangle key seat II is provided with the large positioning pin hole II such as a diameter and positioning pin hole I, and the axis of this positioning pin hole II is on the longitudinal center face of base plate II; It is horizontal semicolumn shrinkage pool I that the lower end surface of key seat II is provided with an axis, and the bottom surface of the base plate II at the below place of the lower end surface at key seat II is provided with two screw hole I; The female thread screw hole II that one is installed lock body II is respectively equipped with at the corner place of the base plate II bottom surface of rectangle;

One briquetting, this briquetting comprises a rectangular block, and the length of this rectangular block equals the length of rectangle key seat II, and it is that the radius of horizontal semicolumn shrinkage pool II, semicolumn shrinkage pool II and semicolumn shrinkage pool I is equal that the upper-end surface of this rectangular block is provided with an axis; The trailing flank of briquetting is provided with two the female thread screw hole IIIs corresponding with above-mentioned screw hole I;

One linkage piece, this linkage piece comprises a "T"-shaped egative film I, and the transverse sheet I that namely this "T"-shaped egative film I comprises a level is connected riser I in the middle with one, the thickness of egative film I equals the height of the small cylinder projection in rotating disk; Be provided with the groove I of one section of level at the I right part of transverse sheet, the width of this groove I is slightly larger than the diameter of the small cylinder in rotating disk, and the two ends of groove I are semicircle; Cut one piece in the left part upper end of transverse sheet I, and the upper edge after cutting part is provided with one to recessed circular arc part, the radius of this circular arc part equals the radius of the large cylinder in rotating disk; The groove I of above-mentioned level and the mutual alignment of circular arc part are designed to: when the right-hand member of the groove I of the level in linkage piece is sleeved on outside small cylinder, the bottom of large cylinder is arranged in the circular arc part of linkage piece just; Also be connected with a hook sheet I upwards dug in the lower end surface of this riser I, be also provided with a gap slot I at the middle part of this hook sheet I, the bottom of this gap slot I is semicircle, and the longitudinal center face of its median plane and riser is in same plane; The height that this hook sheet I digs is designed to: when the right-hand member of the groove I of the level in linkage piece is sleeved on outside small cylinder, the end face hooking sheet I is attached on the bottom surface of the flat board of " convex " font in lock body I just;

One suspension hook, this suspension hook comprises a "T"-shaped egative film II, namely the transverse sheet II that this "T"-shaped egative film II comprises a level is connected riser II in the middle with one, the Thickness Design of egative film II is the difference that the degree of depth of the rectangle pit II in lock body I deducts the thickness of the circular bottom plate of rotating disk and the egative film I of linkage piece; Be provided with the groove II of one section of level at place to the left, the top of transverse sheet II, the width of this groove II is slightly larger than the diameter of the large cylinder in rotating disk, and the two ends of groove II are semicircle; Have a chimb upwards dug respectively in the left and right sides of transverse sheet II, the height of projection of this chimb is designed to: the distance between its end face to suspension hook bottom surface equals the degree of depth of the rectangle pit II in lock body I; Also be connected to a hook sheet II upwards dug in the left and right side of this riser II, be also respectively equipped with corresponding, a semicircular indentations groove II mutually on two tops hooking sheet II, the median plane of semicircular indentations groove II is vertical with the longitudinal center face of riser II; The width design of above-mentioned transverse sheet II is the width sliding fit with the rectangle pit II in lock body I, its Design of length is: when the large cylinder in rotating disk and small cylinder are positioned at horizontal position, when the groove II of the level of transverse sheet II is sleeved on outside the large cylinder in rotating disk, the lower end surface of the rectangle pit II of lower end surface just and in lock body I of transverse sheet II is affixed; Above-mentioned two hook the width of the spacing between sheet II inner side surface slightly larger than the dull and stereotyped top of " convex " font in lock body I; The width design of above-mentioned riser is the width of the through hole of the rectangle be slightly less than in lock body I, its Design of length is: when the large cylinder in rotating disk and small cylinder are positioned at horizontal position, when the groove II of the level of transverse sheet II is sleeved on outside the large cylinder in rotating disk, the lower end surface of the through hole of the rectangle in the lower end surface of riser and lock body I keeps suitable spacing, and two hook the lower end surface of sheet II and are affixed with the shoulders of the flat board of " convex " font;

One locating stud, this locating stud comprises the straight pin II of the positioning pin hole I sliding fit in a diameter and lock body I, the groove of an annular is provided with near this straight pin II head place, the width of this groove is slightly larger than the thickness of the hook sheet I in linkage piece, and the diameter of its bottom land is slightly less than the width of the gap slot I hooking sheet I;

One rectangular steel loop, this steel loop comprises a round bar by bending, and make the closed annular body that its head and the tail are fixed together, the diameter of this round steel is slightly less than one times of the semicolumn shrinkage pool I radius in key seat II; Distance between the round bar inner side surface of wherein the right and left is slightly larger than the width of rectangle key seat II; Distance A between the round bar shaft axis on upper and lower both sides is designed to: A=A1+A2+A3-A4, wherein:

A1 is the distance of through hole horizontal center line to lock body I lower end surface of the circle of lock body I; A2 is that the shaft axis of the semicolumn shrinkage pool I of lock body II is to the distance between lock body II end face; A3 is that the horizontal center line of the large cylinder of rotating disk is to the distance between circular bottom plate horizontal center line; A4 be the groove II of the level of suspension hook horizontal center line to gap slot II horizontal center line between distance;

Above-mentioned lock body II is placed in the below of lock body I, locating stud loads in the positioning pin hole I in lock body I, rotation lock is positioned at make its free end in position vertically downward, the cylindrical line of centres of size simultaneously in rotating disk is positioned at vertical position, the groove I of the level in linkage piece is sleeved on outside the small cylinder of rotating disk, and the hook sheet I in linkage piece is hooked in the groove of the annular of locating stud, the groove II of the level in suspension hook is sleeved on outside the large cylinder of rotating disk, and two simultaneously in suspension hook hook sheet II and insert in the gap of the through hole of the rectangle in linkage piece and lock body I respectively, below in rectangular steel loop, a round bar is inserted in the semicolumn shrinkage pool I in lock body II, two screw hole I in lock body II are each passed through with two screws, be tightened in two female thread screw hole III in briquetting, briquetting is fixed on the lower end surface of the key seat II in lock body II, and be assemblied in the cylindrical hole formed between briquetting and key seat I I by rotating for round bar below in rectangular steel loop, rotate rectangular steel loop, a round bar above it is made to be hooked in the gap slot II in suspension hook, now the lower end surface of key seat I is together with the upper-end surface split of key seat II, namely lock is in the state of locking, rotate counterclockwise lock handle 90 °, the free end of lock handle is made to be positioned at the position of level, lock handle drives rotating disk to rotate counterclockwise 90 °, the cylindrical line of centres of the size in rotating disk is made to be positioned at the position of level, small cylinder drives linkage piece upwards to mention, linkage piece drives locating stud to mention, locating stud is thrown off from the positioning pin hole II key seat II, large cylinder drives suspension hook to move downward simultaneously, make the constraint of the gap slot II in a round bar disengagement suspension hook above of rectangular steel loop, now certain distance is left in the lower end surface of key seat I and the upper-end surface of key seat II, the distance that this distance small cylinder equaled in rotating disk raises when rotating counterclockwise 90 °, namely lock is in the state opened.

In order to realize first above-mentioned object, also can adopt following the second technological scheme: the LED display casing rapid connecting lock of this programme improves on the basis of technique scheme, and the place of improvement is:

(1) through hole that is perpendicular, button installation is also provided with in the surface on the handle vertical center line bottom of lock handle, the back side of the handle below the through hole of this button installation is also connected with a perpendicular hook plate, the eave tile that the outer end of this hook plate has to raise up;

(2) set up a button box assembly, this button box assembly comprises:

One button box body, this button box body comprises the high square box of a back-off and the flat-square box of a back-off, the lower end of high square box and the upper end arc surface of flat-square box is round and smooth links together, and the two inside is mutually through; The semicolumn of a length of tape top cover is connected to outside the left and right sidewall of high square box; Be provided with a step hole that is perpendicular, assembling button at the front surface of high square box, the hole outside this step hole is slightly less than the hole of the inside; The left and right sidewall of flat-square box is respectively equipped with one mutually corresponding and with the pin hole I of sidewalls orthogonal; Be provided with one section of narrow groove at the middle part of the arc surface connecting high square box and flat-square box, the sidewall of this narrow groove is parallel with the sidewall of high square box;

One button, this button comprises a small column and the circular egative film being connected its lower end, and the diameter of this small column is slightly less than the aperture in the hole outside above-mentioned step hole, and the diameter of this circular egative film is slightly less than the aperture in the hole inside above-mentioned step hole;

One card, this card comprises the riser, transverse sheet and the lower inclined tab that link together; Wherein riser is one its upper end is connected with one laterally and the top flat be slightly upturned, and its lower end be semicircle toward left-oblique elongated plates, and this semicircular center has one slightly larger than the pin hole II of pin hole I; Transverse sheet is wherein connected in the middle part of the left surface of riser, the hook I that its left end raises up with; Lower inclined tab is wherein connected to the lower-left end of transverse sheet, and it is slightly downward-sloping, and its left end is with one to the hook II of lower convexity;

One pin, the diameter of this pin and pin hole II sliding fit, with pin hole I drive fit;

One torsion spring II, this torsion spring II comprise the spring coil portion of left and right, have a strut respectively in the outer end in spring coil portion, left and right, be provided with one fall the hook part of " U " shape in its inner end, and the internal diameter in spring coil portion is slightly larger than the diameter of pin;

Above-mentioned button outwards loads from the inside of the step hole button box body, card is inserted in button box body, pin inserts in the pin hole II in card, its head is packed in the pin hole I in flat-square box, torsion spring II is sleeved on outside pin, the both sides of card, and its strut stretches out outside the bottom surface of button box body, and its hook part is hooked in the hook I in card, top flat head in card withstands on the inner end end face of button, and hook II stretches out from the narrow groove button box body;

(3) one is also provided with slightly larger than the through hole of button box body profile in the central authorities in the portion on the lower side of the base plate II of lock body II, be respectively equipped with in the left and right sides of this through hole the semicircle column sleeve that can hold the semicolumn outside the sidewall of high square box left and right, this semicircle column sleeve is also with top cover;

(4) be also respectively equipped with the blockage of a projection in the bottom of the left and right side near briquetting, have the torsion spring mandrel of a projection at the center of each blockage;

(5) set up two torsion spring III, the internal diameter of these two torsion spring III is slightly larger than the diameter of torsion spring mandrel;

(6) mode of assembling and the difference of technique scheme are: first loaded by above-mentioned button box assembly in the through hole slightly larger than button box body profile in lock body II, its semicolumn is arranged in the semicircle column sleeve of lock body II, button stretches out in the through hole of the button installation lock handle, and the hook II in card is hooked on the eave tile of the hook plate in lock handle; Lock body II is placed in the below of lock body I;

Two torsion spring III are set in outside the torsion spring mandrel in briquetting, and one end of its strut withstands on the end face of the base plate II of lock body II, and the other end is enclosed within the round bar of the right and left in rectangular steel loop; Following assembling mode is identical with above-mentioned technological scheme.

Pressing button, button overcomes the torsion of torsion spring II and forces card to rotate clockwise, and the eave tile of the hook II in card and the hook plate in lock handle is thrown off, and namely lock handle can rotate; When lock handle turn to its free end down time hook by the hook II in, the then eave tile of the hook plate in lock handle and card downwards, the position of lock handle is fixed.

In order to realize second above-mentioned object, following technological scheme can be adopted: the LED display casing rapid connecting lock of this programme improves on the basis of technique scheme, and the place of improvement is:

(1) linkage piece: the hook sheet I upwards dug eliminating the riser I lower end surface in former linkage piece, and be also provided with a rivet hole I at the middle part in the longitudinal center face of this riser I;

(2) suspension hook: the longitudinal center face of the riser II in former suspension hook has been set up a vertical elongated slot, the width of this elongated slot is slightly larger than the diameter of the rivet hole I in linkage piece;

(3) rivet is added;

(4) set up a plug linkage part, this plug linkage part comprises:

One plug linkage board, this plug linkage board comprises the thin plate of a long strip, has a rivet hole II in the symmetry center of this thin plate, has the elongated slot of a longitudinal direction at the right and left of rivet hole II respectively; What be also connected to a circular arc at the two ends, left and right of thin plate withholds plate, and the circular arc radius withholding plate is equal with the public plug body radius of following public plug, has a screw hole II respectively at the right and left withholding plate of each circular arc;

The public plug of two charged cables, an otic placode III is had respectively at public plug body the right and left of each public plug, there is the screw hole III that one and screw hole II etc. are large at the center of each otic placode III, and these two otic placode III match with the plate of withholding of the circular arc in plug linkage board;

The female of two charged cables, these two females match with public plug, and are contained in position that is relative with public plug, that keep at a certain distance away, the distance raised when this distance small cylinder equaled in rotating disk rotates counterclockwise 90 °;

(5) mode of assembling with the difference of technique scheme is: three, is riveted together through the vertical elongated slot in its rivet hole II, suspension hook and the rivet hole I in linkage piece with a rivet by above-mentioned plug linkage board; Be each passed through the screw hole III in the otic placode III in public plug and the screw hole II in plug linkage board with the screw in 4 pairs of screw-nut, with nut, plug linkage board and two public plugs be fixed together; When locking rapid connecting lock, suspension hook drives linkage piece, plug linkage board and public plug to move, and makes public plug insert female, realizes electrical connection.Remaining assembling mode is identical with above-mentioned technological scheme.

The invention has the beneficial effects as follows:

1, LED display casing rapid connecting lock of the present invention is reasonable in design, ingenious, it makes turntable rotation 90 degree by rotation lock handle, the large small cylinder simultaneously making to be located on rotating disk two eccentric rotates simultaneously, wherein large cylinder drives suspension hook, hook steel loop, thus make lock produce locking and the effect of unclamping; Small cylinder drive linkage piece, linkage piece drives locating stud again, make locating stud lock locking with unclamp while produce the effect of aliging with returning.

2, LED display casing rapid connecting lock of the present invention is because the eccentric size cylinder design of two on rotating disk is wherein for being parallel to LED box surface, so make LED display casing rapid connecting lock become frivolous, decrease the space after being assemblied in LED display casing, bring very large convenience to LED display casing packaging and carrying.

3, after LED display casing rapid connecting lock of the present invention adds plug linkage part, small cylinder on rotating disk drives the linkage piece after improving, motion is passed to orientable public plug by plug linkage board by this linkage piece again, make public plug rapid connecting lock locking with unclamp while produce and align and movement, thus the connection completing master-slave socket with unclamp the effect be connected.This connecting lock can while two LED display casings that locking is adjacent, the signal air plug head of automatic connect box outside and power supply air plug head, and make the cable of signal air plug head and power supply air plug head be hidden in the inside of casing, can't see cable from the display screen body back side, thus make the back side of shielding body seem neat, attractive in appearance and improve the efficiency connected.

4, the LEI using LED display casing rapid connecting lock of the present invention to be stitched together) display screen, splices and takes apart very quick and easy, neat, the cable neat appearance at the LED display back side.

Being convenient to make the present invention understand with more clear, below by drawings and Examples, it being described further.

Accompanying drawing explanation

Fig. 1 a is the schematic front view of the LED display casing rapid connecting lock S1 of embodiments of the invention 1; Fig. 1 b is that schematic diagram is looked on a left side of Fig. 1 a; Fig. 1 c is the schematic rear view of Fig. 1 a; Fig. 1 d is the schematic top plan view of Fig. 1 a; Fig. 1 e is the elevational schematic view of Fig. 1 a; Fig. 1 f is the A-A cross-sectional schematic of Fig. 1 a.

Fig. 2 is the schematic perspective view of embodiment 1.

Fig. 3 a is the decomposing schematic representation of the component in embodiment 1; Fig. 3 b is the structural upright schematic diagram of the locating stud in embodiment 1.

Fig. 4 a is the structural upright schematic diagram of the lock body II in embodiment 1; Fig. 4 b is the A-A cross-sectional schematic of Fig. 4 a; Fig. 4 c is the schematic rear view of Fig. 4 a.

Fig. 5 a is the structural upright schematic diagram of the briquetting in embodiment 1; Fig. 5 b is the B direction view of Fig. 5 a.

Fig. 6 is the structural upright schematic diagram of the steel loop in embodiment 1.

Fig. 7 a is the structural upright schematic diagram of the lock body I in embodiment 1; Fig. 7 b is the A direction view of Fig. 7 a.

Fig. 8 a is the structural upright schematic diagram of the rotating disk in embodiment 1; Fig. 8 b is the A direction view of Fig. 8 a.

Fig. 9 is the structural upright schematic diagram of the lock handle in embodiment 1.

Figure 10 a is the structural upright schematic diagram of the suspension hook in embodiment 1; Figure 10 b is the front elevational schematic of Figure 10 a; Figure 10 c is that schematic diagram is looked on a left side of Figure 10 b.

Figure 11 is the structural upright schematic diagram of the linkage piece in embodiment 1.

Figure 12 a is the lock schematic diagram in the loosened condition of embodiment 1; Figure 12 b is the lock schematic diagram in the locked condition of embodiment 1.

Figure 13 a is the structure front elevational schematic of the button box assembly in embodiment 2; Figure 13 b is the schematic rear view of Figure 13 a; Figure 13 c is the A-A cross-sectional schematic of Figure 13 a; Figure 13 d is the structural upright schematic diagram of this button box assembly.

Figure 14 a is the front elevational schematic of the button box body in button box assembly; Figure 14 b is the schematic rear view of Figure 14 a; Figure 14 c is the A-A cross-sectional schematic of Figure 14 a; Figure 14 d is that schematic diagram is looked on a left side of Figure 14 a; Figure 14 e is the schematic top plan view of 14a; Figure 14 f is the elevational schematic view of Figure 14 a; Figure 14 g is the structural upright schematic diagram of this button box body.

Figure 15 is the structural upright schematic diagram of the card in button box assembly.

Figure 16 is the structure front elevational schematic of the card in button box assembly.

Figure 17 a is the schematic front view of the LED display casing rapid connecting lock S2 of embodiments of the invention 2; Figure 17 b is that schematic diagram is looked on a left side of Figure 17 a; Figure 17 c is the schematic rear view of Figure 17 a; Figure 17 d is the elevational schematic view of Figure 17 a; Figure 17 e is the schematic top plan view of Figure 17 a; Figure 17 f is the A-A cross-sectional schematic of Figure 17 a; Figure 17 g is the structural upright schematic diagram of the LED display casing rapid connecting lock S2 of embodiment 2.

Figure 18 a is one of component decomposing schematic representation of embodiment 2; Figure 18 b is the component decomposing schematic representation two of embodiment 2.

Figure 19 a is one of the structural upright schematic diagram of lock body II in embodiment 2; Figure 19 b is the structural upright schematic diagram two of the lock body II in embodiment 2.

Figure 20 a is the front elevational schematic of the lock hand structure in embodiment 2; Figure 20 b is the A-A cross-sectional schematic of Figure 20 a; Figure 20 c is the schematic rear view of Figure 20 a.

Figure 21 is the structural upright schematic diagram of the briquetting in embodiment 2.

Figure 22 be in embodiment 2 the schematic diagram of torsion spring II structure.

Figure 23 a is one of schematic perspective view of the LED display casing rapid connecting lock S3 of embodiments of the invention 3; Figure 23 b is the schematic perspective view two of the LED display casing rapid connecting lock S3 of embodiments of the invention 3.

Figure 24 is one of component decomposing schematic representation of embodiment 3; Figure 24 b is the component decomposing schematic representation two of embodiment 3.

Figure 25 a is the schematic front view of the LED display casing rapid connecting lock in embodiment 3; Figure 25 b is the A-A cross-sectional schematic of Figure 25 a; Figure 25 c is the B-B cross-sectional schematic of Figure 25 a.

Figure 26 is the structural upright schematic diagram of the plug linkage board in the plug linkage part in embodiment 3.

Figure 27 is the structural upright schematic diagram of public plug in the plug linkage part in embodiment 3 and female.

Figure 28 is the structural upright schematic diagram of the linkage piece in the plug linkage part in embodiment 3.

Figure 29 is the structural upright schematic diagram of the suspension hook in the plug linkage part in embodiment 3.

Figure 30 a is the front elevational schematic using the LED display casing rapid connecting lock S3 of embodiment 3 to splice LED display casing; Figure 30 b is that schematic diagram is looked on a left side of Figure 30 a; Figure 30 c is the A portion enlarged diagram of Figure 30 a.

Embodiment

Embodiment 1, referring to Fig. 1 a mono-Figure 12 b.The LED display casing rapid connecting lock S1 of the present embodiment comprises:

One lock body I 80, this lock body I 80 comprises (see Fig. 7 a and Fig. 7 b): the base plate I 81 of a rectangle, and the right and left of the Lower Half of the base plate I 81 of this rectangle is respectively equipped with the side plate I 85 of a vertical protrusion; A recessed rectangle pit I 84 is provided with between two side plate I 85; The through hole 810 of a rectangle is provided with at the upper middle part of this rectangle pit I 84; Below the through hole 810 of this rectangle, be provided with the rectangle key seat I 82 of a projection, the center of this rectangle key seat I 82 is provided with a positioning pin hole I 83, and the axis of this positioning pin hole I 83 is on the longitudinal center face of base plate I 81; The flat board 86 of one " convex " font is upwards also connected with at the end face of this rectangle key seat I 82; The through hole 87 of a circle is provided with at the center of the first half of the base plate I 81 of rectangle; In the bottom surface of the first half of the base plate I 81 of rectangle, the surrounding of circular through hole is provided with a rectangle pit II 88; The female thread screw hole I 89 that one is installed lock body I is respectively equipped with at the corner place of base plate I 81 bottom surface of rectangle;

One rotating disk 100, this rotating disk 100 comprises (see a Fig. 8 a and Fig. 8 b) oblate post 102, through hole 87 sliding fit of the circle in the diameter of this oblate post 102 and lock body I, the thickness that its thickness equals base plate I 81 deducts the degree of depth difference of rectangle pit II 88, the upper surface of this oblate post 102 is provided with two vertical protrusion and the otic placode I 103 be parallel to each other, otic placode I 103 is respectively equipped with a mutual cylinder pin hole I 104 that is corresponding, level, below this oblate post 102, be provided with one be positioned at a slightly large circular bottom plate 101 on same shaft axis with it, the lower surface of circular bottom plate 101 is provided with small one and large one cylindrical body 105 and 106 of two vertical protrusion, the shaft axis of these two cylindrical bodys 105 and 106 in the horizontal plane subpoint is positioned on same circle, and cylinder pin hole 104 axes normal on its line and two otic placode I, the degree of depth of rectangle pit II 88 that wherein height of projection of large cylinder 105 equals in lock body I deducts the difference of circular bottom plate 101 thickness, the height of projection of small cylinder 106 equals the thickness of the egative film I in following linkage piece 70,

One lock handle 10a, this lock handle 10a comprises (see Fig. 9) handle 11a of long strip, the dual-side of the upper end near this handle 11a is respectively equipped with an otic placode II13a that is symmetrical, that inwardly stretch, these two otic placode II 13a centers are respectively equipped with a mutual cylinder pin hole II12a that is corresponding, level, the equal diameters of cylinder pin hole II 12a and cylinder pin hole I 104; Distance between these two otic placode II 12a inner side surfaces is slightly larger than the distance between two otic placode I 103 outer side surfaces;

(see Fig. 3 a), the diameter of this straight pin I 90 equals the diameter of cylinder pin hole II 12a and cylinder pin hole I 104 to one straight pin I 90;

One torsion spring I 140 (see Fig. 3 a); The internal diameter of this torsion spring I 140 is slightly larger than the diameter of straight pin I 90;

Load in the through hole 87 that (referring again to Fig. 1 f) above-mentioned rotating disk 100 is circular from lock body I, the upper surface of its circular bottom plate 101 and the upper surface of rectangle pit II 88 are affixed; Straight pin I 90 is through the cylinder pin hole II 12a in lock handle 10a and rotating disk 100 and cylinder pin hole I 104, torsion spring I 140 is sleeved on the middle part of straight pin I 90, the strut at its two ends supports on oblate post 102 end face in lock handle 10a bottom surface and rotating disk respectively, lock handle 10a and rotating disk 100 and lock body I 80 is assembled together; Also comprise in addition:

One lock body II 40a, this lock body II 40a comprises (see Fig. 4 a-Fig. 4 c): the base plate II 41a of a rectangle, and the right and left of the base plate II 41a of this rectangle is respectively equipped with the side plate II43a of a vertical protrusion; The rectangle key seat II 45a of a projection is provided with in base plate II 41a top edge central authorities, the center of this rectangle key seat II 45a is provided with the large positioning pin hole II 47a such as a diameter and positioning pin hole I 83, and the axis of this positioning pin hole II 47a is on the longitudinal center face of base plate II 41a; It is horizontal semicolumn shrinkage pool I 44a that the lower end surface of key seat II 45a is provided with an axis, and the bottom surface of the base plate II 41a at the below place of the lower end surface at key seat II 45a is provided with two screw hole I 48a; The female thread screw hole II 49a that one is installed lock body II is respectively equipped with at the corner place of the base plate II 41a bottom surface of rectangle;

One briquetting 20a, this briquetting 20a comprises (see a Fig. 5 a and Fig. 5 b) rectangular block 21a, the length of this rectangular block 21a equals the length of rectangle key seat II 45a, it is horizontal semicolumn shrinkage pool II 22a that the upper-end surface of this rectangular block 21a is provided with an axis, and the radius of semicolumn shrinkage pool II 22a and semicolumn shrinkage pool I44a is equal; The trailing flank 23a of briquetting 20a is provided with two the female thread screw hole III 24as corresponding with above-mentioned screw hole I 48a;

One linkage piece 70, this linkage piece 70 comprises (see Figure 11) one "T"-shaped egative film I, namely the transverse sheet I 71 that this "T"-shaped egative film I comprises a level is connected riser I 76 in the middle with one, the thickness of egative film I equals the height of small cylinder 106 projection in rotating disk; Be provided with the groove I 72 of one section of level at I 71 right part of transverse sheet, the width of this groove I 72 is slightly larger than the diameter of the small cylinder 106 in rotating disk, and the two ends of groove I 72 are semicircle; Cut one piece in the left part upper end of transverse sheet I 71, and the upper edge after cutting part is provided with one to recessed circular arc part 73, the radius of this circular arc part 73 equals the radius of the large cylinder 105 in rotating disk; The groove I 72 of above-mentioned level and the mutual alignment of circular arc part 73 are designed to: when the right-hand member of the groove I 72 of the level in linkage piece 70 be sleeved on small cylinder 106 outer time, the bottom of large cylinder 105 is arranged in the circular arc part 73 of linkage piece just; Also be connected with a hook sheet I 75 upwards dug in the lower end surface of this riser I 76, be also provided with a gap slot I 74 at the middle part of this hook sheet I 75, the bottom of this gap slot I 74 is semicircle, and the longitudinal center face of its median plane and riser 76 is in same plane; The height that this hook sheet I 75 digs is designed to: when the right-hand member of the groove I 72 of the level in linkage piece be sleeved on small cylinder 106 outer time, the end face hooking sheet I 75 is attached on the bottom surface of the flat board 86 of " convex " font in lock body I 80 just;

One suspension hook 60, this suspension hook 60 comprises (see a Figure 10 a-Figure 10 c) "T"-shaped egative film II, namely the transverse sheet II 61 that this "T"-shaped egative film II comprises a level is connected riser II 64 in the middle with one, the Thickness Design of egative film II is the difference that the degree of depth of the pit II 88 of the rectangle in lock body I 80 deducts the thickness of the circular bottom plate 101 of rotating disk and the egative film I of linkage piece 70; Be provided with the groove II 62 of one section of level at place to the left, the top of transverse sheet II 61, the width of this groove II 62 is slightly larger than the diameter of the large cylinder 105 in rotating disk, and the two ends of groove II 62 are semicircle; Have a chimb upwards dug 66 respectively in the left and right sides of transverse sheet II 61, the height of projection of this chimb 66 is designed to: the distance between its end face to suspension hook 60 bottom surface equals the degree of depth of the pit II 88 of the rectangle in lock body I; A hook sheet II 65 upwards dug also is connected in the left and right side of this riser II 64, also be respectively equipped with corresponding, a semicircular indentations groove II 63 mutually on two tops hooking sheet II 65, the median plane of semicircular indentations groove II 63 is vertical with the longitudinal center face of riser II 64; The width design of above-mentioned transverse sheet II 61 is the width sliding fit with the rectangle pit II 88 in lock body I, its Design of length is: when the large cylinder 105 in rotating disk and small cylinder 106 are positioned at horizontal position, the groove II 62 of the level of transverse sheet II 61 be sleeved on large cylinder 105 in rotating disk outer time, the lower end surface of the rectangle pit II 88 of lower end surface just and in lock body I of transverse sheet II 61 is affixed; Above-mentioned two hook the width of the spacing between sheet II 65 inner side surface slightly larger than flat board 86 top of " convex " font in lock body I; The width design of above-mentioned riser 64 is the width of the through hole 810 of the rectangle be slightly less than in lock body I, its Design of length is: when the large cylinder 105 in rotating disk and small cylinder 106 are positioned at horizontal position, the groove II 62 of the level of transverse sheet II 61 be sleeved on large cylinder 105 in rotating disk outer time, the lower end surface of the through hole 810 of the rectangle in the lower end surface of riser 64 and lock body I keeps suitable spacing, and two hook the lower end surface of sheet II 65 and are affixed with the shoulders of the flat board 86 of " convex " font;

One locating stud 50, this locating stud 50 (see Fig. 3 b) comprises the straight pin II 51 of positioning pin hole I 83 sliding fit in a diameter and lock body I, the groove 52 of an annular is provided with near this straight pin II 51 head place, the width of this groove 52 is slightly larger than the thickness of the hook sheet I 75 in linkage piece, and the diameter of its bottom land is slightly less than the width of the gap slot I 74 hooking sheet I;

One rectangular steel loop 110, this steel loop 110 comprises (see Fig. 6, Figure 12 a and Figure 12 b), and a round bar passes through bending, make the closed annular body that its head and the tail are fixed together, the diameter of this round steel is slightly less than one times of the semicolumn shrinkage pool I 44a radius in rectangle key seat II 45a; Distance b between round bar 111 inner side surface of wherein the right and left is slightly larger than the width of rectangle key seat II 45a; Distance A between the round bar shaft axis on upper and lower both sides is designed to (see Fig. 1 f): A=A1+A2+A3-A4, wherein:

A1 is the distance of through hole 87 horizontal center line to lock body I 80 lower end surface of the circle of lock body I 80; A2 is that the shaft axis of the semicolumn shrinkage pool I 44a of lock body II 40a is to the distance between lock body II 40a end face; A3 is that the horizontal center line of the large cylinder 105 of rotating disk 100 is to the distance between circular bottom plate 101 horizontal center line; A4 be the groove II 62 of the level of suspension hook 60 horizontal center line to gap slot II 63 horizontal center line between distance;

(referring to Fig. 1 a-Fig. 1 f and Figure 12 a and Figure 12 b) above-mentioned lock body II 40a is placed in the below of lock body I 80, locating stud 50 loads in the positioning pin hole I 83 in lock body I 80, rotation lock makes its free end be positioned at position vertically downward 10a, large small cylinder 105 simultaneously in rotating disk 100 with 106 the line of centres be positioned at vertical position, the groove I 72 of the level in linkage piece 70 is sleeved on outside the small cylinder 106 of rotating disk, and the hook sheet I 75 in linkage piece 70 is hooked in the groove 52 of the annular of locating stud 50, the groove II 62 of the level in suspension hook 60 is sleeved on outside the large cylinder 105 of rotating disk, and two simultaneously in suspension hook 60 hook sheet II 65 and insert respectively in the gap of through hole 810 of the rectangle in linkage piece 70 and lock body I, below in rectangular steel loop 110, a round bar 113 is inserted in the semicolumn shrinkage pool I 44a in lock body II 40a, two screw hole I 48a in lock body II are each passed through by two screw (not shown)s, be tightened in two female thread screw hole III 24a in briquetting 20a, briquetting 20a is fixed on the lower end surface of the key seat II 45a in lock body II, and be assemblied in the cylindrical hole formed between briquetting 20a and key seat II 45a by rotating for round bar 113 below in rectangular steel loop 110, rotate rectangular steel loop 110, a round bar 112 above it is made to be hooked in the gap slot II 63 in suspension hook 60, now the lower end surface of S lock body I 80 is together with the upper-end surface split of lock body II 40a, namely lock is in the state of locking, rotate counterclockwise lock handle 10a 90 °, the free end of lock handle 10a is made to be positioned at the position of level, lock handle drives rotating disk 100 to rotate counterclockwise 90 °, the line of centres of the large small cylinder 105 and 106 in rotating disk 100 is made to be positioned at the position of level, small cylinder 106 drives linkage piece 70 upwards to mention, linkage piece 70 drives locating stud 50 to mention, locating stud 50 is thrown off from the positioning pin hole II 47a key seat II 45a, large cylinder 105 drives suspension hook 60 to move downward simultaneously, round bar 112 above of rectangular steel loop 110 is made to throw off the constraint of the gap slot II 63 in suspension hook 60, now certain distance is left in the lower end surface of lock body I80 and the upper-end surface of lock body II40a, the distance that this distance small cylinder 106 equaled in rotating disk raises when rotating counterclockwise 90 °, namely lock is in the state opened.

Further, in the upper end of two side plate II 43a in described lock body II 40a or/and lower end is provided with one penetrate through hole 42a in side plate II, a collision bead assembly 30 is housed in this through hole 42a (see Fig. 1 b and Fig. 3 a); Meanwhile,

Left and right side 15a in described lock handle 10a is respectively equipped with the individual recess 16a corresponding with above-mentioned collision bead assembly of 1-2 or/and 14a, so when lock is in locking state, clicked the lower end of lock handle, then lock handle can be fixed by collision bead, prevents lock from being unclamped by touching by mistake.

Further, the upper end of described lock handle 10a can be designed to a semicircular arc 19a, and its lower end is turned over bending to the back side of handle and become one group of handle 17a, has the breach 18a of a circular arc at the middle part of this group of handle 17a, when then making to unclamp lock, lift lock handle and rotate more convenient.

Embodiment 2, further referring to Figure 13 a-Figure 22.The LED display casing rapid connecting lock S2 of the present embodiment improves on the basis of the LED display casing rapid connecting lock S1 of above-described embodiment 1, and the place of improvement is:

(1) a through hole 14b that is perpendicular, button installation is also provided with in the surface on the handle 11b vertical center line bottom of lock handle 10b (referring to Figure 20 a-Figure 20 c), the back side of the handle below the through hole 14b of this button installation is also connected with a perpendicular hook plate 15b, the eave tile 16b that the outer end of this hook plate 15b has to raise up;

(2) set up a button box assembly 120, this button box assembly 120 comprises (referring to Figure 13 a-Figure 13 d):

One button box body 121 (referring to Figure 14 a-Figure 14 g), this button box body 121 comprises the high square box 1216 of a back-off and the flat-square box 1211 of a back-off, the lower end of high the square box 1216 and upper end arc surface 1218 of flat-square box 1211 is round and smooth links together, the two inside is mutually through; The semicolumn 1213 of a length of tape top cover is connected to outside the left and right sidewall of high square box 1216; Be provided with a step hole that is perpendicular, assembling button at the front surface of high square box 1216, the hole 1215 outside this step hole is slightly less than the hole 1219 of the inside; The left and right sidewall of flat-square box is respectively equipped with one mutually corresponding and with the pin hole I1212 of sidewalls orthogonal; Be provided with one section narrow groove 1217 at the middle part of the arc surface 1218 connecting high square box and flat-square box, the sidewall of this narrow groove 1217 is parallel with the sidewall of high square box 1216;

One button 125 (see Figure 13 c), this button 125 comprises a small column 1251 and the circular egative film 1252 being connected its lower end, the diameter of this small column 1251 is slightly less than the aperture in the hole 1215 outside above-mentioned step hole, and the diameter of this circular egative film 1252 is slightly less than the aperture in the hole 1219 inside above-mentioned step hole;

One card 124 (see Figure 15 and Figure 16), this card 124 comprises the riser 1241, transverse sheet 1242 and the lower inclined tab 1243 that link together; Wherein riser 1241 is one its upper end is connected with one laterally and the top flat 12411 be slightly upturned, and its lower end be semicircle toward left-oblique elongated plates, and this semicircular center has one slightly larger than the pin hole II 1244 of pin hole I 1212; Transverse sheet 1242 is wherein connected in the middle part of the left surface of riser 1241, the hook I12421 that its left end raises up with; Lower inclined tab 1243 is wherein connected to the lower-left end of transverse sheet 1242, and it is slightly downward-sloping, and its left end is with one to the hook II 12431 of lower convexity;

One pin 123 (see Figure 13 b), the diameter of this pin 123 and pin hole II 1244 sliding fit, with pin hole I 1212 drive fit;

One torsion spring II 122 (see Figure 22, Figure 13 b and Figure 13 c), this torsion spring II 122 comprises the spring coil portion 1221 of left and right, a strut 1223 is had respectively in the outer end in spring coil portion, left and right, be provided with one in its inner end and fall the hook part 1222 of " U " shape, the internal diameter in spring coil portion 1221 is slightly larger than the diameter of pin 123;

Above-mentioned button 125 outwards loads from the inside of the step hole button box body 121, card 124 is inserted in button box body 121, pin 123 inserts in the pin hole II 1244 in card 124, its head is packed in the pin hole I 1212 in flat-square box, torsion spring II 122 is sleeved on outside pin 123, the both sides of card 124, its strut 1223 stretches out outside the bottom surface of button box body 121, its hook part 1222 is hooked in the hook I 12421 in card, top flat 12411 head in card withstands on the inner end end face of button 125, hook II 12431 stretches out from the narrow groove 1217 button box body,

(3) one is also provided with slightly larger than the through hole 41b of button box body profile in the central authorities in the portion on the lower side of the base plate II 41a of lock body II 40b (referring to Figure 19 a and 19b), be respectively equipped with in the left and right sides of this through hole 41b the semicircle column sleeve 42b that can hold the semicolumn 1213 outside the sidewall of high square box left and right, this semicircle column sleeve 42b is also with top cover;

(4) be also respectively equipped with the blockage 21b of a projection in the bottom of the left and right side near briquetting 20b (referring to Figure 21), have the torsion spring mandrel 22b of a projection at the center of each blockage 21b; Two screw hole 23b in Figure 21 can substitute two original female thread screw hole III 24a and fix assembling briquetting 20b.

(5) (referring to Figure 18 a), the internal diameter of these two torsion spring III 126 is slightly larger than the diameter of torsion spring mandrel 22b to have set up two torsion spring III 126;

(6) mode of assembling and the difference of technique scheme are (referring to Figure 17 a-Figure 17 f): first above-mentioned button box assembly 120 is loaded in lock body II 40b slightly larger than in the through hole 41b of button box body profile, its semicolumn 1213 is arranged in the semicircle column sleeve 42b of lock body II, button 125 stretches out in the through hole 14b of the button installation lock handle 10b, and the hook II 12431 in card 124 is hooked on the eave tile 16b of the hook plate in lock handle 10b; Lock body II 40b is placed in the below of lock body I80;

Two torsion spring III 126 are set in outside the torsion spring mandrel 22b in briquetting 20b, one end of its strut withstands on the end face of the base plate II 41a of lock body II, and the other end is enclosed within two, the left and right round bar 111 in rectangular steel loop 110 (referring to Figure 30 b); Following assembling mode is identical with above-mentioned technological scheme.

Pressing button 125, button overcomes the torsion of torsion spring II 122 and forces card 124 to rotate clockwise, and the hook II 12431 in card 124 throws off with the eave tile 16b of the hook plate in lock handle 10b, and namely lock handle can rotate; When lock handle turn to its free end down time hook by the hook II 12431 in, the then eave tile 16b of the hook plate in lock handle and card downwards, the position of lock handle is fixed.

Further, the handle 11b of described lock handle 10b can be designed as the box body of a back-off (see Figure 20 a-Figure 20 c), and the intermediate portion of this box body is a long strip 111b, and it connects with semicircle 112b and 113b at upper and lower two ends.

Embodiment 3, further referring to Figure 23 a-Figure 30 c.The LED display casing rapid connecting lock S3 of the present embodiment improves on the basis of the LED display casing rapid connecting lock S2 of above-described embodiment 2, and the place of improvement is:

(1) linkage piece 70c (referring to Figure 28): the hook sheet I 75 upwards dug eliminating riser I 76 lower end surface in former linkage piece 70, and also set up a rivet hole I 77 at the middle part in the longitudinal center face of this riser I 76;

(2) suspension hook 60c (referring to Figure 29): the longitudinal center face of the riser II 64 in former suspension hook 60 has been set up a vertical elongated slot 67, the width of this elongated slot 67 is slightly larger than the diameter of the rivet hole I 77 in linkage piece;

(3) rivet 154 (see Figure 25 b) has been set up;

(4) set up a plug linkage part 150 (see Figure 23 a, Figure 23 b, Figure 24 a, Figure 24 b, Figure 25 a-Figure 25 c), this plug linkage part 150 comprises:

One plug linkage board 151 (see Figure 26), this plug linkage board 151 comprises the thin plate 1511 of a long strip, has a rivet hole II 1516 in the symmetry center of this thin plate, has the elongated slot 1512 of a longitudinal direction at the right and left of rivet hole II 1516 respectively; What be also connected to a circular arc at the two ends, left and right of thin plate 1511 withholds plate 1513, the circular arc radius withholding plate 1513 is equal with public plug body 1521 radius of following public plug 152, has a screw hole II 1514 respectively at the right and left withholding plate 1513 of each circular arc;

The public plug 152 of two charged cables, an otic placode III 1522 is had respectively at public plug body 1521 the right and left of each public plug 152, there is a screw hole III 1523 large with screw hole II 1514 grade at the center of each otic placode III 1522, and these two otic placode III 1522 match with the plate 1513 of withholding of the circular arc in plug linkage board;

The female 153 of two charged cables, these two females 153 match with public plug 152, and be contained in position that is relative with public plug 152, that keep at a certain distance away, the distance raised when this distance small cylinder 106 equaled in rotating disk 100 rotates counterclockwise 90 °;

(5), during assembling, three, is riveted together through the vertical elongated slot 67 in its rivet hole II1516, suspension hook 60c and the rivet hole I 77 in linkage piece 70c with a rivet 154 by above-mentioned plug linkage board 151; Be each passed through the screw hole III 1523 in the otic placode III in the public plug 152 and screw hole II 1514 in plug linkage board 151 with the screw in 4 pairs of screw-nut 155, with nut, plug linkage board 151 and two public plugs 152 be fixed together; When locking rapid connecting lock, suspension hook 60c drives linkage piece 70c, plug linkage board 151 and public plug 152 to move, and makes public plug 152 insert female, realizes electrical connection.

Embodiment 4, further referring to Figure 23 a-Figure 30 c.The LED display (referring to Figure 30 a and Figure 30 b) of the present embodiment comprises the LED display be linked together by multiple LED display casing 1 with one of them multiple LED display casing rapid connecting lock S1 or S2 or S3 of above-described embodiment.

Between the mating face of adjacent two LED display casings 1, at least with LED display casing rapid connecting lock S1 or S2 or S3, both are locked split together; Before splicing, first lock body 80 locating stud 811 and a LED display casing are located, then by screw hole 89, lock body 80 is fixed on the side of this LED display casing with screw, female 153 is fixed on the correct position relative with public plug 152 simultaneously; Then a lock body 40a locating stud 410a and adjacent LED display casing is located, by screw hole 49a, lock body 40a is fixed on the side of this LED display casing again with screw, female 153 is fixed on the correct position relative with public plug 152 simultaneously, now can rotation lock handle, lock is locked, two simultaneously adjacent LED display box body splicings to together, together with public plug and female also plug together.Otherwise when unclamping lock, two adjacent LED display casings and public plug and female are also thrown off, and are convenient to a certain LED display casing removed wherein.

Like this at the left and right of a LED display casing and/or the LED display that multiple LED display box body splicing can be become a giant-screen up and down.

These are only the preferred embodiment of the present invention, but it does not limit practical range of the present invention, the equivalent variations namely not departing from claim of the present invention and done and modification, must belong to the protection domain of the present invention.

Claims

1. a LED display casing rapid connecting lock, is characterized in that comprising:

One suspension hook, this suspension hook comprises a "T"-shaped egative film II, namely the transverse sheet II that this "T"-shaped egative film II comprises a level is connected riser II in the middle with one, the Thickness Design of egative film II is the difference that the degree of depth of the rectangle pit II in lock body I deducts the thickness of the circular bottom plate of rotating disk and the egative film I of linkage piece; Be provided with the groove II of one section of level at place to the left, the top of transverse sheet II, the width of this groove II is slightly larger than the diameter of the large cylinder in rotating disk, and the two ends of groove II are semicircle; Have a chimb upwards dug respectively in the left and right sides of transverse sheet II, the height of projection of this chimb is designed to: the distance between its end face to suspension hook bottom surface equals the degree of depth of the rectangle pit II in lock body I; Also be connected to a hook sheet II upwards dug in the left and right side of this riser II, be also respectively equipped with corresponding, a semicircular indentations groove II mutually on two tops hooking sheet II, the median plane of semicircular indentations groove II is vertical with the longitudinal center face of riser II; The width design of above-mentioned transverse sheet II is the width sliding fit with the rectangle pit II in lock body I, its Design of length is: when the large cylinder in rotating disk and small cylinder are positioned at horizontal position, when the groove II of the level of transverse sheet II is sleeved on outside the large cylinder in rotating disk, the lower end surface of the rectangle pit II of lower end surface just and in lock body I of transverse sheet II is affixed; Above-mentioned two hook the width of the spacing between sheet II inner side surface slightly larger than the dull and stereotyped top of " convex " font in lock body I; The width design of above-mentioned riser II is the width of the through hole of the rectangle be slightly less than in lock body I, its Design of length is: when the large cylinder in rotating disk and small cylinder are positioned at horizontal position, when the groove II of the level of transverse sheet II is sleeved on outside the large cylinder in rotating disk, the lower end surface of the through hole of the rectangle in the lower end surface of riser II and lock body I keeps suitable spacing, and two hook the lower end surface of sheet II and are affixed with the shoulders of the flat board of " convex " font;

Above-mentioned lock body II is placed in the below of lock body I, locating stud loads in the positioning pin hole I in lock body I, rotation lock is positioned at make its free end in position vertically downward, the cylindrical line of centres of size simultaneously in rotating disk is positioned at vertical position, the groove I of the level in linkage piece is sleeved on outside the small cylinder of rotating disk, and the hook sheet I in linkage piece is hooked in the groove of the annular of locating stud, the groove II of the level in suspension hook is sleeved on outside the large cylinder of rotating disk, and two simultaneously in suspension hook hook sheet II and insert in the gap of the through hole of the rectangle in linkage piece and lock body I respectively, below in rectangular steel loop, a round bar is inserted in the semicolumn shrinkage pool I in lock body II, two screw hole I in lock body II are each passed through with two screws, be tightened in two female thread screw hole III in briquetting, briquetting is fixed on the lower end surface of the key seat II in lock body II, and be assemblied in the cylindrical hole formed between briquetting and key seat II by rotating for round bar below in rectangular steel loop, rotate rectangular steel loop, a round bar above it is made to be hooked in the gap slot II in suspension hook, now the lower end surface of key seat I is together with the upper-end surface split of key seat II, namely lock is in the state of locking, rotate counterclockwise lock handle 90 °, the free end of lock handle is made to be positioned at the position of level, lock handle drives rotating disk to rotate counterclockwise 90 °, the cylindrical line of centres of the size in rotating disk is made to be positioned at the position of level, small cylinder drives linkage piece upwards to mention, linkage piece drives locating stud to mention, locating stud is thrown off from the positioning pin hole II key seat II, large cylinder drives suspension hook to move downward simultaneously, make the constraint of the gap slot II in a round bar disengagement suspension hook above of rectangular steel loop, now certain distance is left in the lower end surface of key seat I and the upper-end surface of key seat II, the distance that this distance small cylinder equaled in rotating disk raises when rotating counterclockwise 90 °, namely lock is in the state opened.

2. LED display casing rapid connecting lock according to claim 1, is characterized in that the upper end of two side plate II in described lock body II or/and lower end is provided with one penetrate through hole in side plate II, a collision bead assembly is housed in this through hole; Meanwhile,

Left and right side in described lock handle is respectively equipped with the individual recess corresponding with above-mentioned collision bead assembly of 1-2.

3. LED display casing rapid connecting lock according to claim 1 and 2, is characterized in that the upper end of described lock handle is a semicircular arc, and formation one group of handle is turned over to the back side of handle in its lower end, has the breach of a circular arc at the middle part of this group of handle.

4. a LED display casing rapid connecting lock, is characterized in that comprising:

One rotating disk, this rotating disk comprises an oblate post, the through hole sliding fit of the circle in the diameter of this oblate post and lock body I, and the thickness that its thickness equals base plate I deducts the degree of depth difference of rectangle pit II; The upper surface of this oblate post is provided with two vertical protrusion and the otic placode I be parallel to each other, otic placode I is respectively equipped with a mutual cylinder pin hole I that is corresponding, level; Below this oblate post, be provided with one be positioned at a slightly large circular bottom plate on same shaft axis with it, the lower surface of circular bottom plate is provided with small one and large one cylindrical body of two vertical protrusion, the cylinder pin hole axes normal of these two cylindrical shaft axiss in the horizontal plane on the line of subpoint and two otic placode I, the degree of depth of rectangle pit II that wherein height of projection of large cylinder equals in lock body I deducts the difference of circular bottom plate thickness, and the height of projection of small cylinder equals the thickness of the egative film I in following linkage piece 70;

One lock handle, this lock handle comprises the handle of a long strip, the dual-side of the upper end near this handle is respectively equipped with an otic placode II that is symmetrical, that inwardly stretch, these two otic placode II centers are respectively equipped with a mutual cylinder pin hole II that is corresponding, level, the equal diameters of cylinder pin hole II and cylinder pin hole I; Distance between these two otic placode II inner side surfaces is slightly larger than the distance between two otic placode I outer side surfaces; In addition, a through hole that is perpendicular, button installation is also provided with in surface on the handle vertical center line bottom, the back side of the handle below the through hole of this button installation is also connected with a perpendicular hook plate, the eave tile that the outer end of this hook plate has to raise up;

One button box assembly, this button box assembly comprises:

One lock body II, this lock body II comprises: the base plate II of a rectangle, and the right and left of the base plate II of this rectangle is respectively equipped with the side plate II of a vertical protrusion; Be provided with the rectangle key seat II of a projection in base plate II top edge central authorities, the center of this rectangle key seat II is provided with the large positioning pin hole II such as a diameter and positioning pin hole I, and the axis of this positioning pin hole II is on the longitudinal center face of base plate II; It is horizontal semicolumn shrinkage pool I that the lower end surface of key seat II is provided with an axis, and the bottom surface of the base plate II at the below place of the lower end surface at key seat II is provided with two screw hole I; The female thread screw hole II that one is installed lock body II is respectively equipped with at the corner place of the base plate II bottom surface of rectangle; In addition, be also provided with one slightly larger than the through hole of button box body profile in the central authorities in the portion on the lower side of base plate II, be respectively equipped with in the left and right sides of this through hole the semicircle column sleeve that can hold the semicolumn outside the sidewall of high square box left and right, this semicircle column sleeve is also with top cover;

One briquetting, this briquetting comprises a rectangular block, and the length of this rectangular block equals the length of rectangle key seat II, and it is that the radius of horizontal semicolumn shrinkage pool II, semicolumn shrinkage pool II and semicolumn shrinkage pool I is equal that the upper-end surface of this rectangular block is provided with an axis; The trailing flank of briquetting is provided with two the female thread screw hole IIIs corresponding with above-mentioned screw hole I; In addition, be also respectively equipped with the blockage of a projection in the bottom of the left and right side near briquetting, have the torsion spring mandrel of a projection at the center of each blockage;

The internal diameter of two torsion spring III, these two torsion spring III is slightly larger than the diameter of torsion spring mandrel;

One suspension hook, this suspension hook comprises a "T"-shaped egative film II, namely the transverse sheet II that this "T"-shaped egative film II comprises a level is connected riser II in the middle with one, the Thickness Design of egative film II is the difference that the degree of depth of the rectangle pit II in lock body I deducts the thickness of the circular bottom plate of rotating disk and the egative film I of linkage piece; Be provided with the groove II of one section of level at place to the left, the top of transverse sheet II, the width of this groove II is slightly larger than the diameter of the large cylinder in rotating disk, and the two ends of groove II are semicircle; Have a chimb upwards dug respectively in the left and right sides of transverse sheet II, the height of projection of this chimb is designed to: the distance between its end face to suspension hook bottom surface equals the degree of depth of the rectangle pit II in lock body I; Also be connected to a hook sheet II upwards dug in the left and right side of this riser II, the top hooking sheet II at two is also respectively equipped with a mutually corresponding gap slot II, and the lower end of gap slot II is semicircle, and its median plane is vertical with the longitudinal center face of riser II; The width design of above-mentioned transverse sheet II is the width sliding fit with the rectangle pit II in lock body I, its Design of length is: when the large cylinder in rotating disk and small cylinder are positioned at horizontal position, when the groove II of the level of transverse sheet II is sleeved on outside the large cylinder in rotating disk, the lower end surface of the rectangle pit II of lower end surface just and in lock body I of transverse sheet II is affixed; Above-mentioned two hook the width of the spacing between sheet II inner side surface slightly larger than the dull and stereotyped top of " convex " font in lock body I; The width design of above-mentioned riser II is the width of the through hole of the rectangle be slightly less than in lock body I, its Design of length is: when the large cylinder in rotating disk and small cylinder are positioned at horizontal position, when the groove II of the level of transverse sheet II is sleeved on outside the large cylinder in rotating disk, the lower end surface of the through hole of the rectangle in the lower end surface of riser II and lock body I keeps suitable spacing, and two hook the lower end surface of sheet II and are affixed with the shoulders of the flat board of " convex " font;

A1 is the distance of through hole horizontal center line to lock body I lower end surface of the circle of lock body I; A2 is that the shaft axis of the semicolumn shrinkage pool I of lock body II is to the distance between lock body I I end face; A3 is that the horizontal center line of the large cylinder of rotating disk is to the distance between circular bottom plate horizontal center line; A4 be the groove II of the level of suspension hook horizontal center line to gap slot II horizontal center line between distance;

Above-mentioned button box assembly is loaded in the through hole slightly larger than button box body profile in lock body II, its semicolumn is arranged in the semicircle column sleeve of lock body II, button stretches out in the through hole of the button installation lock handle, and the hook II in card is hooked on the eave tile of the hook plate in lock handle, lock body II is placed in the below of lock body I, locating stud loads in the positioning pin hole I in lock body I, and rotation lock is positioned at make its free end in position vertically downward, and the eave tile of the hook plate in lock handle is hooked on the hook II in card, the cylindrical line of centres of size simultaneously in rotating disk is positioned at vertical position, and the groove I of the level in linkage piece is sleeved on outside the small cylinder of rotating disk, and the hook sheet I in linkage piece is hooked in the groove of the annular of locating stud, the groove II of the level in suspension hook is sleeved on outside the large cylinder of rotating disk, and two simultaneously in suspension hook hook sheet II and insert in the gap of the through hole of the rectangle in linkage piece and lock body I respectively, below in rectangular steel loop, a round bar is inserted in the semicolumn shrinkage pool I in lock body II, two screw hole I in lock body II are each passed through with two screws, be tightened in two female thread screw hole III in briquetting, briquetting is fixed on the lower end surface of the key seat II in lock body II, and be assemblied in the cylindrical hole formed between briquetting and key seat II by rotating for round bar below in rectangular steel loop, rotate rectangular steel loop, a round bar above it is made to be hooked in the gap slot II in suspension hook, two torsion spring III are set in outside the torsion spring mandrel in briquetting, one end of its strut withstands on the end face of the base plate II of lock body II, the other end is enclosed within the round bar of the right and left in rectangular steel loop, now the lower end surface of key seat I is together with the upper-end surface split of key seat II, and namely lock is in the state of locking, pressing button, button overcomes the torsion of torsion spring II and forces card to rotate clockwise, the eave tile of the hook II in card and the hook plate in lock handle is thrown off, lock handle is rotated counterclockwise 90 °, the free end of lock handle is made to be positioned at the position of level, lock handle drives rotating disk to rotate counterclockwise 90 °, the cylindrical line of centres of the size in rotating disk is made to be positioned at the position of level, small cylinder drives linkage piece upwards to mention, linkage piece drives locating stud to mention, locating stud is thrown off from the positioning pin hole II key seat II, large cylinder drives suspension hook to move downward simultaneously, make the constraint of the gap slot II in a round bar disengagement suspension hook above of rectangular steel loop, now certain distance is left in the lower end surface of key seat I and the upper-end surface of key seat II, the distance that this distance small cylinder equaled in rotating disk raises when rotating counterclockwise 90 °, namely lock is in the state opened.

5. LED display casing rapid connecting lock according to claim 4, is characterized in that the handle of described lock handle is the box body of a back-off, and the intermediate portion of this box body is a long strip, and it connects with the semicircle at upper and lower two ends.

6. a LED display casing rapid connecting lock, is characterized in that comprising:

Load in the through hole that above-mentioned rotating disk is circular from lock body I, the upper surface of its circular bottom plate and the upper surface of rectangle pit II are affixed; Straight pin I is through the cylinder pin hole II in lock handle and rotating disk and cylinder pin hole I, and torsion spring I is sleeved on the middle part of straight pin I, and the strut at its two ends supports on the oblate capital face in lock handle bottom surface and rotating disk respectively, lock handle and rotating disk and lock body I is assembled together; Also comprise in addition:

One button box assembly, this button box assembly comprises:

One button box body, this button box body comprises the high square box of a back-off and the flat-square box of a back-off, the lower end of high square box and the upper end arc surface of flat-square box is round and smooth links together, and the two inside is mutually through; A semicolumn is connected to outside the left and right sidewall of high square box; Be provided with a step hole that is perpendicular, assembling button at the end face of high square box, the hole outside this step hole is slightly less than the hole of the inside; The left and right sidewall of flat-square box is respectively equipped with one mutually corresponding and with the pin hole I of sidewalls orthogonal; Be provided with one section of narrow groove at the middle part of the arc surface connecting high square box and flat-square box, the sidewall of this narrow groove is parallel with the sidewall of high square box;

One button, this button comprises a small column and the circular egative film being connected its lower end, and the diameter of this small column is slightly less than the aperture in the hole outside above-mentioned step hole, and the diameter of this circular egative film is slightly less than above-mentioned step hole; The aperture in the hole of the inside;

One card, this card comprises the riser, transverse sheet and the lower inclined tab that link together; Wherein riser is one its upper end is connected with one laterally and the top flat be slightly upturned, and its lower end be semicircle toward left-oblique elongated plates, and this semicircular center has one slightly larger than the pin hole II of pin hole I; Transverse sheet wherein connects in the middle part of the left surface with riser, the hook I that its left end raises up with; Lower inclined tab is wherein connected to the lower-left end of transverse sheet, and it is slightly downward-sloping, and its left end is with one to the hook II of lower convexity;

One pin, the diameter of this pin and pin hole II sliding fit, its head and pin hole I drive fit;

Above-mentioned button outwards loads from the inside of the step hole button box body, card is inserted in button box body, pin inserts in the pin hole II in card, its head is packed in the pin hole I in flat-square box, torsion spring II is sleeved on outside pin, the both sides of card, and its strut leans against on the inwall of button box body, and its hook part is hooked in the hook I in card, top flat head in card withstands on the inner end of button, and hook II stretches out from the narrow groove button box body;

One lock body II, this lock body II comprises: the base plate II of a rectangle, and the right and left of the base plate II of this rectangle is respectively equipped with the side plate II of a vertical protrusion; Be provided with the rectangle key seat II of a projection in base plate II top edge central authorities, the center of this rectangle key seat II is provided with the large positioning pin hole II such as a diameter and positioning pin hole I, and the axis of this positioning pin hole II is on the longitudinal center face of base plate II; It is horizontal semicolumn shrinkage pool I that the lower end surface of key seat II is provided with an axis, and the bottom surface of the base plate II at the below place of the lower end surface at key seat II is provided with two screw hole I; The female thread screw hole II that one is installed lock body II is respectively equipped with at the corner place of the base plate II bottom surface of rectangle; In addition, be also provided with one slightly larger than the through hole of button box body profile in the central authorities in the portion on the lower side of base plate II, be respectively equipped with in the left and right sides of this through hole the semicircle column sleeve that can hold the semicolumn outside the sidewall of high square box left and right;

One briquetting, this briquetting comprises a rectangular block, and the length of this rectangular block equals the length of rectangle key seat I I, and it is that the radius of horizontal semicolumn shrinkage pool II, semicolumn shrinkage pool II and semicolumn shrinkage pool I is equal that the upper-end surface of this rectangular block is provided with an axis; The trailing flank of briquetting is provided with two the female thread screw hole IIIs corresponding with above-mentioned screw hole I; In addition, be also respectively equipped with the blockage of a projection in the bottom of the left and right side near briquetting, have the torsion spring mandrel of a projection at the center of each blockage;

One linkage piece, this linkage piece comprises a "T"-shaped egative film I, and the transverse sheet I that namely this "T"-shaped egative film I comprises a level is connected riser I in the middle with one, the thickness of egative film I equals the height of the small cylinder projection in rotating disk; Be provided with the groove I of one section of level at the I right part of transverse sheet, the width of this groove I is slightly larger than the diameter of the small cylinder in rotating disk, and the two ends of groove I are semicircle; Cut one piece in the left part upper end of transverse sheet I, and the upper edge after cutting part is provided with one to recessed circular arc part, the radius of this circular arc part equals the radius of the large cylinder in rotating disk; The groove I of above-mentioned level and the mutual alignment of circular arc part are designed to: when the right-hand member of the groove I of the level in linkage piece is sleeved on outside small cylinder, the bottom of large cylinder is arranged in the circular arc part of linkage piece just; A rivet hole I is also had at the middle part in the longitudinal center face of this riser I;

One suspension hook, this suspension hook comprises a "T"-shaped egative film II, namely the transverse sheet II that this "T"-shaped egative film II comprises a level is connected riser II in the middle with one, the Thickness Design of egative film II is the difference that the degree of depth of the rectangle pit II in lock body I deducts the thickness of the circular bottom plate of rotating disk and the egative film I of linkage piece; Be provided with the groove II of one section of level at place to the left, the top of transverse sheet II, the width of this groove II is slightly larger than the diameter of the large cylinder in rotating disk, and the two ends of groove II are semicircle; Have a chimb upwards dug respectively in the left and right sides of transverse sheet II, the height of projection of this chimb is designed to: the distance between its end face to suspension hook bottom surface equals the degree of depth of the rectangle pit II in lock body I; The longitudinal center face of this riser II is also provided with a vertical elongated slot, the width of this elongated slot is slightly larger than the diameter of the rivet hole in linkage piece, a hook sheet II upwards dug also is connected in the left and right side of this riser II, the top hooking sheet II at two is also respectively equipped with a mutually corresponding gap slot II, the lower end of gap slot II is semicircle, and its median plane is vertical with the longitudinal center face of riser II; The width design of above-mentioned transverse sheet II is the width sliding fit with the rectangle pit II in lock body I, its Design of length is: when the large cylinder in rotating disk and small cylinder are positioned at horizontal position, when the groove II of the level of transverse sheet II is sleeved on outside the large cylinder in rotating disk, the lower end surface of the rectangle pit II of lower end surface just and in lock body I of transverse sheet II is affixed; Above-mentioned two hook the width of the spacing between sheet II inner side surface slightly larger than the dull and stereotyped top of " convex " font in lock body I; The width design of above-mentioned riser II is the width of the through hole of the rectangle be slightly less than in lock body I, its Design of length is: when the large cylinder in rotating disk and small cylinder are positioned at horizontal position, when the groove II of the level of transverse sheet II is sleeved on outside the large cylinder in rotating disk, the lower end surface of the through hole of the rectangle in the lower end surface of riser II and lock body I keeps suitable spacing, and two hook the lower end surface of sheet II and are affixed with the shoulders of the flat board of " convex " font;

One rivet;

A1 is the distance of through hole horizontal center line to lock body I lower end surface of the circle of lock body I; A2 is that the shaft axis of the semicolumn shrinkage pool I of lock body II is to the distance between lock body II end face; A3 is that the horizontal center line of the large cylinder of rotating disk is to the distance between circular bottom plate horizontal center line; A4 be the groove II of the level of suspension hook horizontal center line to gap slot II horizontal center line between distance; Also have in addition:

One plug linkage part, this plug linkage part comprises:

One plug linkage board, this plug linkage board comprises the thin plate of a long strip, has a rivet hole II in the symmetry center of this thin plate, has the elongated slot of a longitudinal direction at the right and left of rivet hole II respectively; What be also connected to a circular arc at the two ends, left and right of thin plate withholds plate, withholds the circular arc radius of plate equal with the radius of the public plug body of following public plug, has a screw hole II respectively at the right and left withholding plate of each circular arc;

The public plug of two charged cables, an otic placode III is had respectively at the right and left of the public plug body of each public plug, there is the screw hole III that one and screw hole II etc. are large at the center of each otic placode III, and these two otic placode III match with the plate of withholding of the circular arc in plug linkage board;

Above-mentioned button box assembly is loaded in the through hole slightly larger than button box body profile in lock body II, its semicolumn is arranged in the semicircle column sleeve of lock body II, button stretches out in the through hole of the button installation lock handle, and the hook II in card is hooked on the eave tile of the hook plate in lock handle, lock body II is placed in the below of lock body I, locating stud loads in the positioning pin hole I in lock body I, and rotation lock is positioned at make its free end in position vertically downward, and the eave tile of the hook plate in lock handle is hooked on the hook II in card, the cylindrical line of centres of size simultaneously in rotating disk is positioned at vertical position, and the groove I of the level in linkage piece is sleeved on outside the small cylinder of rotating disk, and the hook sheet I in linkage piece is hooked in the groove of the annular of locating stud, the groove II of the level in suspension hook is sleeved on outside the large cylinder of rotating disk, and two simultaneously in suspension hook hook sheet II and insert in the gap of the through hole of the rectangle in linkage piece and lock body I respectively, below in rectangular steel loop, a round bar is inserted in the semicolumn shrinkage pool I in lock body II, two screw hole I in lock body II are each passed through with two screws, be tightened in two female thread screw hole III in briquetting, briquetting is fixed on the lower end surface of the key seat II in lock body II, and be assemblied in the cylindrical hole formed between briquetting and key seat II by rotating for round bar below in rectangular steel loop, rotate rectangular steel loop, a round bar above it is made to be hooked in the gap slot II in suspension hook, two torsion spring III are set in outside the torsion spring mandrel in briquetting, one end of its strut withstands on the end face of the base plate II of lock body II, the other end is enclosed within two, the left and right round bar in rectangular steel loop, now the lower end surface of key seat I is together with the upper-end surface split of key seat II, and namely lock is in the state of locking, pressing button, button overcomes the torsion of torsion spring II and forces card to rotate clockwise, the eave tile of the hook II in card and the hook plate in lock handle is thrown off, lock handle is rotated counterclockwise 90 °, the free end of lock handle is made to be positioned at the position of level, lock handle drives rotating disk to rotate counterclockwise 90 °, the cylindrical line of centres of the size in rotating disk is made to be positioned at the position of level, small cylinder drives linkage piece upwards to mention, linkage piece drives locating stud to mention, locating stud is thrown off from the positioning pin hole II key seat II, large cylinder drives suspension hook to move downward simultaneously, make the constraint of the gap slot II in a round bar disengagement suspension hook above of rectangular steel loop, now certain distance is left in the lower end surface of key seat I and the upper-end surface of key seat II, the distance that this distance small cylinder equaled in rotating disk raises when rotating counterclockwise 90 °, namely lock is in the state opened,

Three, is riveted together through the vertical elongated slot in its rivet hole II, suspension hook and the rivet hole I in linkage piece with a rivet by above-mentioned plug linkage board; Be each passed through the screw hole III in the otic placode III in public plug and the screw hole II in plug linkage board with the screw in 4 pairs of screw-nut, with nut, plug linkage board and two public plugs be fixed together; When locking rapid connecting lock, suspension hook drives linkage piece, plug linkage board and public plug to move, and makes public plug insert female, realizes electrical connection.

7. a LED display, is characterized in that it comprises the LED display be linked together by multiple LED display casing with one of them multiple LED display casing rapid connecting locks of claim 1-6.