CN205533648U - Instrument installation device exempts from and LED display screen of using thereof - Google Patents

Abstract

The utility model discloses an instrument installation device exempts from and LED display screen of using thereof, the the device concave part in through the protruding guide part of establishing of sleeve inner wall comes the protruding third convex part of establishing of first tooth post outer wall in this telescopic moving part of positioning insertion, and utilizes the guide effect, and the moving part extrusion spring and be used for driving to the restoring force of second tooth post when inserting the sleeve that correspond the tilted end face of contact fourth convex part of in guide part second convex part second tooth post tooth post first relatively rotates to preset position to make fourth convex part card go into in the bayonet socket that guide part lower extreme shape of face becomes and the location moving part in the sleeve, and rotate to make the moving part take out from the sleeve accessiblely according to other structures drive second tooth posts of similar principle, installation dismantlement process is about to the moving part and inserts in the sleeve to preset position and accomplish the installation, and it is then separable later to press the moving part, realizes convenient and fast's dismouting.

Description

Tool-free erecting device and the LED display of application thereof

Technical field

This utility model relates to device dismounting technical field, particularly relates to the LED of tool-free erecting device and application thereof Display screen.

Background technology

LED display module has obtained commonly used due to energy-conserving and environment-protective, and particularly dot spacing is the Small Distance of below 3mm LED display module, because of its have beautiful in colour, resolution is high, the seamless spliced and superpower advantage such as quiet, market demand day Benefit increases.

But, Small Distance LED display module, due to luminous tube dot spacing the least (only below 3mm), causes in peace Cannot set about from its front during dress maintenance, enough space for maintenances can only be reserved behind at display panel module, or from four circumferences Heart mounting or dismounting module one by one, or the release of whole display panel module entirety is safeguarded.

But, owing to steric requirements is limited, mounted display panel module is the most often difficult to leave enough spaces, leads Cause cannot be carried out inspection operation；And use from surrounding mounting or dismounting module one by one or by the mode of whole display panel module entirety release, The dimensioned area that then LED display module can be made to accomplish is extremely restricted, and can aggravate to overhaul difficulty and even cannot overhaul.

Summary of the invention

The shortcoming of prior art in view of the above, the purpose of this utility model is to provide a kind of tool-free erecting device And the LED display of application, for described Small Distance LED display module, solve problems of the prior art.

For achieving the above object and other relevant purposes, this utility model provides a kind of tool-free erecting device, including: set Cylinder, has the opposite end relative with described open end, open end and the cylinder between described open end and described opposite end The inner space of shape；Described sleeve lining is circumferentially arranged with at least two guide part, and each described guide part includes along sleeve Wall circumferential array arrange the first protuberance, the second protuberance and be formed at the recess between described two protuberances；Wherein, described second protuberance Towards the first end face of described open end along the circumferentially extending setting of described sleeve lining, and described first end face be arranged to further away from The recess that is adjacent and more tilt to described opposite end；Described recess is towards the 3rd end face and described second of described opposite end The bayonet socket towards described opposite end it is formed with between protuberance；What shape coordinated with described inner space movable part, for from described set The open end of cylinder is inserted into described inner space, comprising: carrier bar, including the first end of the open end for entering described sleeve Portion and the second end relative with described first end；It is sheathed on the most movably to first end from described the second end The spring of described carrier bar, the second tooth post and the first tooth post；The opposing end surface ring respectively of described first tooth post and the second tooth post sets Have for corresponding the first ratcheting tooth group and the second tooth group；The outside wall surface of described first tooth post is provided with radial position and width corresponds to At least one the 3rd protuberance of described recess；The outside wall surface of described second tooth post is provided with the corresponding described bayonet socket of radial position extremely Few 4th protuberance；Wherein, at described movable part during open end enters described inner space, described first tooth post Being snapped in by its 3rd protuberance and obtain location in the recess of a wherein guide part, described 4th protuberance is along the first of described guide part End face slides to drive described second tooth post to rotate relative to the first tooth post and extrudes described spring to opposite end motion and produce Restoring force；Described rotational travel at least can make described second tooth group enter phase to abjection when nipper position relative to the first tooth group activity Adjacent tooth position, and make the second tooth group move to ratcheting along the first tooth group by described restoring force, so that described second tooth post is relative to the One tooth post moves to depending on making the bayonet socket of described 4th another guide part of tab to described open end while being rotated further The described movable part in position is in sleeve.

In an embodiment of the present utility model, described movable part when being positioned described sleeve, described first Being in non-ratcheting state between tooth group and the second tooth group, the motion to described opposite end of the most described movable part makes the 4th convex Portion is from the abjection of described bayonet socket and extrudes described spring generation restoring force, and makes first tooth group motion extruding the second tooth group to ratcheting shape State motion to drive described 4th protuberance to rotate with the second tooth post, and second protuberance adjacent with described bayonet socket relative to its Second end face of end face along the circumferentially extending setting of described sleeve lining and opens to described with away from the recess being adjacent End tilts, and the rotation of described 4th protuberance at least makes it arrive described second end face；Under the effect of described restoring force, make described 4th protuberance slides into abjection guide part along the second end face, to make described movable part deviate from from sleeve.

In an embodiment of the present utility model, described opposite end be fixedly connected with for be fixed on the first object first Connector, the second end of the carrier bar of described movable part is fixedly connected with the second connector for being fixed on the second object.

In an embodiment of the present utility model, described opposite end is fixedly connected on described first by screw-in version and connects Part.

In an embodiment of the present utility model, described first connector and/or the second connector are provided with fixed-purpose Perforation.

In an embodiment of the present utility model, described second object is LED display module.

In an embodiment of the present utility model, described LED display module is below 3mm sliceable LED display mould Block.

In an embodiment of the present utility model, described guide part and the 4th protuberance have at least three one to one, all It is located on described sleeve lining and the second tooth column outer wall the most respectively evenly.

In an embodiment of the present utility model, the chamfered shape of described bayonet socket.

In an embodiment of the present utility model, the first protuberance of each guide part, recess and the second protuberance are towards described Smooth connection between the end face of open end.

In an embodiment of the present utility model, described 3rd protuberance has multiple, the gap of the most adjacent two the 3rd recesses Width at least can pass for described first protuberance and/or the second protuberance.

In an embodiment of the present utility model, each described 3rd protuberance is uniformly arranged on described first tooth column outer wall face, The width of the gap of the most adjacent two the 3rd protuberances, described first protuberance and the second protuberance matches.

For achieving the above object and other relevant purposes, this utility model provides a kind of LED display, it is characterised in that Including: display screen housing；Multiple LED display modules that splicing uses, are located in described display screen housing；Wherein, each LED display module is connected to described display screen housing by a described tool-free erecting device respectively.

As it has been described above, tool-free erecting device of the present utility model and the LED display of application thereof, this device passes through sleeve Recess in the guide part of inwall projection positions the 3rd convex of the first tooth column outer wall projection in the movable part inserting this sleeve Portion, and utilize the guide effect of the inclined end face of corresponding contact the 4th protuberance of the second protuberance in guide part and movable part to insert Extrusion spring during sleeve and restoring force effect to the second tooth post drives described second tooth post to turn to pre-relative to the first tooth post Location is put, thus makes the 4th protuberance snap in the bayonet socket that guide part lower surface is formed and position movable part in sleeve, and according to class The second tooth post is driven to turn to make movable part to take out from sleeve without barrier like other structure of principle；This utility model carries The installing/dismounting process of the tool-free erecting device of confession will complete to install, to precalculated position in movable part insertion sleeve the most again Press movable part and then can complete dismounting, convenient and swift.

Accompanying drawing explanation

Fig. 1 is shown as the combinative structure schematic diagram of this utility model tool-free erecting device in an embodiment.

The structural representation that the movable part of the tool-free erecting device that Fig. 2 is shown as Fig. 1 separates with sleeve.

Fig. 3 is shown as the decomposition texture schematic diagram of this utility model sleeve part in an embodiment.

Fig. 4 is shown as the internal structure schematic diagram of Fig. 3 middle sleeve.

Fig. 5 is shown as the decomposition texture schematic diagram of movable part in Fig. 2.

Fig. 6 a to 6c is illustrated by position relationship change show activity part between the 4th protuberance and guide part and is positioned set Process schematic in Tong.

Fig. 7 a to 7d is illustrated by position relationship change show activity part between the 4th protuberance and guide part and departs from set The process schematic of cylinder.

Fig. 8 is shown as the part-structure schematic diagram of non-ratcheting state between the first tooth group and the second tooth group.

Element numbers explanation

1 movable part

11 carrier bars

12 first tooth posts

121 first tooth groups

122 the 3rd protuberances

13 second tooth posts

131 second tooth groups

132 the 4th protuberances

14 springs

15 second connectors

16 screws

2 sleeves

21,21a, 21b, 21c guide part

211,211a, 211b, 211c first protuberance

212,212a, 212b, 212c second protuberance

213,213a, 2123,213c recess

3 first connectors

Detailed description of the invention

By particular specific embodiment, embodiment of the present utility model being described below, those skilled in the art can be by this Content disclosed by description understands other advantages of the present utility model and effect easily.

Refer to Fig. 1 to Fig. 7 d.It should be clear that structure depicted in this specification institute accompanying drawings, ratio, size etc., the most only use To coordinate the content disclosed in description, understand for those skilled in the art and read, being not limited to this practicality new The enforceable qualifications of type, therefore do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or size Adjustment, under not affecting effect that this utility model can be generated by and the purpose that can reach, all should still fall new in this practicality In the range of technology contents disclosed in type obtains and can contain.Meanwhile, in this specification cited as " on ", D score, " left ", The term of " right ", " middle " and " one " etc., is merely convenient to understanding of narration, and it is enforceable to be not used to limit this utility model Scope, being altered or modified of its relativeness, changing under technology contents without essence, enforceable when being also considered as this utility model Category.

Refer to Fig. 1 and Fig. 2, the tool-free erecting device that this utility model provides, including: sleeve 2 and movable part 1.

In FIG, displaying be movable part 1 positioning combination in the structural representation of sleeve 2, and in fig. 2, displaying be The structural representation that both separate.

Seeing also Fig. 3, described sleeve 2 has open end, is internally formed the inner space of cylinder, implements one In example, as it can be seen, described sleeve 2 can be the cylinder of a hollow, its upper end is open end, and its opposite end i.e. lower end also can be Open, closed by being fixedly connected on the first connector 3.In an embodiment, described fixing connection for example, screws togather Mode, such as, the described outer wall of the first connector 3 and the inwall of sleeve 2 are provided with the screw thread of coupling and make both interfix； Certainly, the most described first connector 3 also can be and the integrated structure of described sleeve 2 etc., not with this Embodiment is limited.

Described first connector 3 be provided with for wear conjunction the keeper such as screw, pin and be fixed on position to be fixed at least One perforation, it is preferred that described first connector 3 includes the Liang Ge ear prolonging symmetry, is respectively provided with a perforation in two ears, By utilizing described perforation to fix described sleeve 2.

Refer to Fig. 4, show the internal structure of described sleeve 2；Described sleeve 2 inwall guides circumferentially arranged with at least two Portion 21, preferably 3 and be uniformly distributed in the circumference of described sleeve 2 inwall；Each described guide part 21 includes along sleeve 2 inwall Circumferential array arrange first protuberance the 211, second protuberance 212 and be formed at the recess 213 between described two protuberances, it is preferred that as Shown in figure, the first protuberance 211 that described at least two guide part 21 (preferably 3) is circumferentially arranged, recess 213 and second The order of protuberance 212 is identical, and i.e. as it can be seen, counterclockwise, being arranged in order is the first convex of the first guide part 21 Portion 211, recess 213 and the second protuberance 212, and then be the protuberance of the second guide part 21, recess 213 and the second protuberance 212, then It is the first protuberance 211 of the 3rd guide part 21, recess 213 and the second protuberance 212, is then turned back to the first of the first guide part 21 Protuberance 211, owing to having on described movable part 1 and the part of each guide part 21 effect, is therefore arranged to cylinder and uniformly sets Put position when guide part 21 can make movable part 1 insert sleeve 2 and select more, and must certain angle insert just without limiting Can be fixing.

Further, as it can be seen, described second protuberance 212 is towards first end face (i.e. upper surface) of described open end along described The circumferentially extending setting of sleeve 2 inwall and with away from the recess 213 being adjacent to described opposite end tilt (also refer to such as Fig. 6 a tilts to left down) so that the movable part 1 inserting sleeve 2 is played guide effect；Preferably, the first of each guide part 21 Protuberance 211, recess 213 and the second protuberance 212 connect into an inclination towards smooth between the end face (i.e. upper surface) of described open end Face is more conducive to the guiding to described movable part 1.

And referring in Fig. 6 a～6c or 7a～7d arbitrary shown, described recess 213 is towards the 3rd end of described opposite end It is formed with the bayonet socket towards described opposite end between face (lower surface i.e. illustrated) and described second protuberance 212；As it can be seen, preferably , this bayonet socket is in the chamfering shape that Open Side Down, and i.e. two inclined-plane is crossing and intersection point is in upper presented shape, hereinafter can be detailed Introduce the effect of this bayonet socket.

As it is shown in figure 5, described movable part 1, for being inserted into described inner space from the open end of described sleeve 2, comprising: Carrier bar the 11, first tooth post the 12, second tooth post 13 and spring 14 etc., be all generally cylindrical；Wherein, described carrier bar 11 under End is arranged with described spring the 14, second tooth post 13 and the first tooth post 12 the most movably to upper end；Described spring 14 is resisted against Between described second tooth post 13 and carrier bar 11 lower end, can the deformation by the extruding time the most movable of the described second tooth post 13； Concrete, in the present embodiment, footpath, described carrier bar 11 lower end convex has flange with spring described in block 14, described carrier bar Spring the 14, first tooth post the 12, second tooth post 13 described in 11 upper end blocks, make they can along the upper and lower activity of carrier bar 11 but can not Abjection, and described second tooth post 13 inner hollow is to be enclosed within outside described spring 14 and to be provided inwardly with flange to footpath to be pressed in spring 14 Top, if the second tooth post 13 moves downward, can produce upwards with flange extrusion spring 14 deformation of described carrier bar 11 lower end Restoring force.

In an embodiment of the present utility model, described carrier bar 11 has screw, by combining the screw lock of screw 16 Mode is fixed described second connector 15 and is realized spring the 14, first tooth post 12 and the second tooth post 13 described in aforementioned block, certainly The most also other structure can be used to fix the second connector 15, not so limited；Described second connector Perforation can be set on 15, be fixed on object to be installed for combining the fixture such as screw, pin；Described object to be installed is such as For LED display module, the sliceable Small Distance display panel module of the most aforesaid below 3MM (such as 1.2MM size), After movable part 1 inserts described sleeve 2 and positions, even display panel module is fixed on position to be fixed (such as LED display mould In block installation display screen housing etc.)；And when described movable part 1 deviates from sleeve 2, described display panel module can be pulled down.

As it is shown in figure 5, the opposing end surface of described first tooth post 12 and the second tooth post 13 is equipped with the first tooth group 121 He respectively Second tooth group 131, the most i.e. first tooth post 12 be provided with the first tooth group 121 to lower surface, the second tooth post 13 to Upper surface is provided with the second tooth group 131, between described first tooth group 121 and each tooth of the second tooth group 131 can the most ratcheting or The most ratcheting, it is preferably the most ratcheting, is more conducive to realize the hereinafter disclosed relative first tooth post 12 of the second tooth post 13 Rotation operation.

The outside wall surface of described first tooth post 12 be provided with radial position and width corresponding to described recess 213 at least one the Three protuberances 122, during movable part 11 enters sleeve 22, described 3rd protuberance 122 can slip into described guide part 21 Recess 213 and position described first tooth post 12 be only capable of making upper and lower to translation and cannot rotate.

In an embodiment of the present utility model, described 3rd protuberance 122 has multiple, the most adjacent two the 3rd recesses 213 Gap width at least can pass for described first protuberance 211 and/or the second protuberance 212, so can realize described first tooth post 12 only can carry out the translation (the upper and lower motion i.e. illustrated) between open end and opposite end in sleeve 22；Preferably, described One protuberance 211 is identical with the width of the second protuberance 212, and each described 3rd protuberance 122 is uniformly arranged on outside described first tooth post 12 Wall, the gap of the most adjacent two the 3rd protuberances 122 is available for the first protuberance 211 or the second protuberance 212 passes, so Position when movable part 11 inserts sleeve 22 need not be limited.

The outside wall surface of described second tooth post 13 is provided with at least one the 4th protuberance 132 of the corresponding described bayonet socket of radial position； The quantity of described 4th protuberance 132 may correspond to described guide part 21.

See also Fig. 6 a to 6c, with the interaction between guide part and the 4th protuberance, movable part is described typically How 1 be fixed in sleeve 2:

As shown in Figure 6 a, described movable part 1 is made to enter the process of described inner space from sleeve 2 open end in applying external force In, described first tooth post 12 is snapped in figure by its 3rd protuberance 122 and obtains in the recess 213a of the first guide part 21a on right side (although this figure is unillustrated, but can know) must be positioned in conjunction with the front figure imagination, so that the first tooth post 12 cannot rotate； First end face (i.e. illustrating upper surface) of described 4th protuberance 132,132 second protuberance 212a along described first guide part 21a enters Slide to drive the relative first tooth post 12 of described second tooth post 13 to turn left in row direction as shown by arrows in FIG.；Simultaneously as The guide effect of described first end face, therefore, the second tooth post 13 while carrying out this rotation also to described sleeve 2 lower end (i.e. the opposite end of open end) moves, thus can extrude described spring 14 and make its deformation produce restoring force；Arrive Fig. 6 b institute Behind the position shown, the rotational travel of aforementioned second tooth post 13 at least makes relative first tooth group 121 activity of described second tooth group 131 extremely Abjection enters adjacent teeth position when nipper position, the most not ratcheting in adjacent teeth position, it is only necessary to enter, and refers to shown in Fig. 8； Now, the force downward to movable part 1 can be removed, then utilize described restoring force upwardly the second tooth post 13, and utilize described The guide effect of the first tooth group 121 and the second tooth group 131 now between cog inclined plane when adjacent teeth position is the most ratcheting, can make Described second tooth post 13 continues to turn left and move upward, i.e. the 4th protuberance 132 in Fig. 6 b carries out arrow institute as shown That shows direction moves to finally be stuck in described bayonet socket the most as fig. 6 c, now, and the bayonet socket 214b of described second guide part 21b Limit the 4th protuberance 132 to continue up, and position described movable part 1 in described sleeve 2；In the present embodiment, preferably Non-essential, the first protuberance (211a, 211b) in each guide part (21a, 21b) and the lower surface of recess (213a, 213b) Smooth connection and constitute the lopsidedness face of this chamfering shape bayonet socket (214a, 214b), i.e. the second guide part 21b's in pie graph The right side of bayonet socket 214b is inclined plane to lower surface, available guide effect, makes described 4th protuberance 132 slip into and engages described Bayonet socket 214b, in the case, the haul distance that relatively rotates between described first tooth group 121 and the second tooth group 131 only needs to realize The 4th protuberance is made to enter the right side of bayonet socket 214b to lower surface；Certainly, if described first tooth group 121 closes the second tooth group 131 Between rotational travel be enough to the clamped position that makes the 4th protuberance 132 arrive in the bayonet socket of described second guide part, also can be without limit Fixed this bayonet socket 214b is schematic structure, may not be required to be the inclined plane of diagram on the right side of its diagram to lower surface.

Sleeve 2 is deviate from for convenience of follow-up activities part 1, when movable part 1 is positioned sleeve 2, described first tooth group 121 and second are in non-ratcheting state between tooth group 131, hereinafter will be described in detail.

As shown in Fig. 7 a to 7d, show and make described movable part 1 deviate from the process of sleeve 2:

As shown in Figure 7a, at described movable part 1 when being positioned described sleeve 2, described activity is forced in downwards Part 1, to make the 4th protuberance 132 carry out moving to as shown in Figure 7b to sleeve 2 lower end, and makes the 4th protuberance 132 from guide part 21c Bayonet socket 214c abjection；After the 4th protuberance 132 deviates from bayonet socket 214c, due to described first tooth group 121 and the second tooth group 131 it Between be in non-ratcheting state, the first tooth post 12 location will not rotate, then it drives the second relative its of tooth post 13 to turn to ratcheting state Dynamic, in the present embodiment, also refer to the state of Fig. 8, the rotation of described second tooth post 13 is for turning left；Further, described card Second end face (i.e. lower surface) of the second protuberance 212c that mouth 214c is adjacent is along the described sleeve 2 circumferentially extending setting of inwall and with far Tilt (the upper to the left inclination the most such as illustrated), described second tooth post to described open end from the recess 213c being adjacent The rotation of 13 at least makes the upper surface of described 4th protuberance 132 arrive on described second end face the most as shown in Figure 7 c.

During aforementioned active part 1 moves down, described spring 14 is made to be squeezed and produce restoring force upwards, The then removable force downward to movable part 1 under the state of Fig. 7 c, then movable part 1 is under the effect of described restoring force and by institute State the guide effect of the second end face and movable until making the 4th protuberance 132 deviate from guide part 21c and completing movable part 1 to open end Split out sleeve 2 the most as shown in figure 7d.

Preferably but nonessential, in the present embodiment, the upper surface of described 4th protuberance 132 and described second protuberance The lower surface angled manner of 212c coordinates, i.e. incline direction is roughly the same, and angle of inclination may be the same or different so that relatively slide Do not have the phenomenon of locking.

It should be noted that, as shown in Figure 4, described guide part 21 can be preferably to be uniformly arranged on sleeve 2 inwall extremely Few three, the most described 4th protuberance 132 also has a corresponding at least three being uniformly arranged on the second tooth post 13 outer wall, and each 4th Protuberance 132 all can act on without there being guide part 21 idle simultaneously with a guide part 21, such as the 21a in Fig. 6 a to 6c embodiment All can act on one the 4th protuberance 132 with 21b, described movable part 1 all can insert described sleeve 2 from optional position so that whole Individual device is the most just used；Certainly, this is only preferred version, if guide part only has two in embodiment 6a to 6c such as and also can realize Making movable part 1 position and depart from sleeve 2, convenience is the poorest the most in actual use, with preferred version is the most not Limit.

In conjunction with above-mentioned, this utility model also can provide a kind of LED display, including: display screen housing and be located at display screen The multiple LED display modules spliced mutually in housing；Each LED display module all can pass through aforementioned tool-free erecting device It is connected to described display screen housing.

Such as, the back side of each LED display module can be passed through the first connector fixed operating sleeve cylinder or connect by second The fixing movable part that connects of fitting, and movable part or logical can be connected by the second connector is fixing accordingly in described display screen housing Cross the first connector fixed operating sleeve cylinder, thus for each LED display module attaching/detaching, the most each LED display mould The convenient installation of block and demolition and maintenance.

In sum, tool-free erecting device of the present utility model and the LED display of application thereof, this device passes through sleeve Recess in the guide part of inwall projection positions the 3rd convex of the first tooth column outer wall projection in the movable part inserting this sleeve Portion, and utilize the guide effect of the inclined end face of corresponding contact the 4th protuberance of the second protuberance in guide part and movable part to insert Extrusion spring during sleeve and restoring force effect to the second tooth post drives described second tooth post to turn to pre-relative to the first tooth post Location is put, thus makes the 4th protuberance snap in the bayonet socket that guide part lower surface is formed and position movable part in sleeve, and according to class The second tooth post is driven to turn to make movable part to take out from sleeve without barrier like other structure of principle；This utility model carries The installing/dismounting process of the tool-free erecting device of confession will complete to install, to precalculated position in movable part insertion sleeve the most again Press movable part and then can complete dismounting, convenient and swift.

This utility model effectively overcomes various shortcoming of the prior art, can each little of location and installation easily Away from sliceable LED display module, also can independently pull down to extremely convenient each LED display module, tool high industrial profit By value.

Certainly, device of the present utility model also can be applicable to, in installation and the dismounting of other device, not show with described LED Display screen module is limited.

Above-described embodiment only illustrative principle of the present utility model and effect thereof are new not for limiting this practicality Type.Above-described embodiment all can be carried out by any person skilled in the art under spirit and the scope of the present utility model Modify or change.Therefore, art has usually intellectual such as without departing from the essence disclosed in this utility model All equivalences completed under god and technological thought are modified or change, and must be contained by claim of the present utility model.

Claims (13)

1. a tool-free erecting device, it is characterised in that including:

Sleeve, has the opposite end relative with described open end, open end and between described open end and described opposite end Cylindrical inner space；Described sleeve lining is circumferentially arranged with at least two guide part, and each described guide part includes edge Sleeve lining circumferential array arrange the first protuberance, the second protuberance and be formed at the recess between described two protuberances；Wherein, described Two protuberances are towards the first end face of described open end along the circumferentially extending setting of described sleeve lining, and described first end face is arranged to More tilt to described opposite end further away from the recess being adjacent；Described recess is towards the 3rd end face of described opposite end and institute State and between the second protuberance, be formed with the bayonet socket towards described opposite end；

The movable part that shape coordinates with described inner space, for being inserted into described inner space from the open end of described sleeve, its Including: carrier bar, including first end and second end relative with described first end of the open end for entering described sleeve Portion；The spring of described carrier bar, the second tooth post and first it is sheathed on the most movably from described the second end to first end Tooth post；The opposing end surface of described first tooth post and the second tooth post is equipped with respectively for corresponding the first ratcheting tooth group and the second tooth Group；The outside wall surface of described first tooth post is provided with radial position and width at least one the 3rd protuberance corresponding to described recess；Institute The outside wall surface stating the second tooth post is provided with at least one the 4th protuberance of the corresponding described bayonet socket of radial position；

Wherein, enter during described inner space from open end at described movable part, described first tooth post by its 3rd Protuberance snaps in and obtains location in the recess of a wherein guide part, described 4th protuberance along the first end face of described guide part slide with Drive described second tooth post to rotate relative to the first tooth post and extrude described spring to opposite end motion and produce restoring force；Described Rotational travel at least can make described second tooth group enter adjacent teeth position to abjection when nipper position relative to the first tooth group activity, and mat The second tooth group is made to move to ratcheting along the first tooth group by described restoring force, so that described second tooth post continues to turn relative to the first tooth post Move to described open end while Dong and position described movable part to the bayonet socket making described 4th another guide part of tab In sleeve.

Tool-free erecting device the most according to claim 1, it is characterised in that described movable part is being positioned described sleeve State under, be in non-ratcheting state between described first tooth group and the second tooth group, the most described movable part is to described phase The motion of opposite end makes the 4th protuberance from the abjection of described bayonet socket and extrude described spring generation restoring force, and makes the first tooth group motion squeeze Press the second tooth group to ratcheting state motion to drive described 4th protuberance to rotate with the second tooth post, and adjacent with described bayonet socket the Second end face relative to its first end face of two protuberances is along the circumferentially extending setting of described sleeve lining and with away from being adjacent Recess and tilt to described open end, the rotation of described 4th protuberance at least make its arrive described second end face；At described time Under the effect of multiple power, described 4th protuberance is made to slide into abjection guide part along the second end face, to make described movable part from sleeve Abjection.

Tool-free erecting device the most according to claim 1, it is characterised in that described opposite end is fixedly connected with for solid Due to the first connector of the first object, the second end of the carrier bar of described movable part is fixedly connected with for being fixed on second Second connector of object.

Tool-free erecting device the most according to claim 3, it is characterised in that described opposite end is fixed by screw-in version It is connected to described first connector.

Tool-free erecting device the most according to claim 3, it is characterised in that described first connector and/or second is even Fitting is provided with the perforation of fixed-purpose.

Tool-free erecting device the most according to claim 3, it is characterised in that described second object is LED display mould Block.

Tool-free erecting device the most according to claim 6, it is characterised in that described LED display module is below 3mm Sliceable LED display module.

Tool-free erecting device the most according to claim 1, it is characterised in that described guide part and the 4th protuberance have one by one Corresponding at least three, is located on described sleeve lining and the second tooth column outer wall the most respectively.

Tool-free erecting device the most according to claim 1, it is characterised in that the chamfered shape of described bayonet socket.

Tool-free erecting device the most according to claim 1, it is characterised in that the first protuberance of each guide part, recess And second protuberance towards smooth connection between the end face of described open end.

11. tool-free erecting devices according to claim 1 and 2, it is characterised in that described 3rd protuberance has multiple, often The gap width of adjacent two the 3rd recesses at least can pass for described first protuberance and/or the second protuberance.

12. tool-free erecting devices according to claim 11, it is characterised in that each described 3rd protuberance is uniformly arranged on Described first tooth column outer wall face, the width phase of the gap of the most adjacent two the 3rd protuberances, described first protuberance and the second protuberance Join.

13. 1 kinds of LED displays, it is characterised in that including:

Display screen housing；

Multiple LED display modules that splicing uses, are located in described display screen housing；Wherein, each LED display module is divided Display screen housing as described in not being connected to by a tool-free erecting device according to any one of claim 1 to 12.