The LED display lockup device
Technical field
The utility model relates to the LED display application, relates in particular to a kind of LED display lockup device.
Background technique
Existing LED display is assembled by the unit box of a plurality of LED displays, utilizes the LED display lockup device to be locked between two adjacent unit boxs, and existing lockup device existence misplaces easily and locks illusive problem and potential safety hazard.
The model utility content
The utility model embodiment technical problem to be solved is, a kind of LED display lockup device is provided, to improve the safety reliability of its use.
In order to solve the problems of the technologies described above, the utility model embodiment has proposed a kind of LED display lockup device, be used for adjacent first module casing and second unit casing on locking or the loose unloading LED display, described LED display lockup device comprises the pinion stand that is fixed on the first module casing, be rotatably mounted in the coupling shaft on the described pinion stand, screw-casing is located at the follower that rotates to drive this coupling shaft on this coupling shaft, rotation is located on the described pinion stand and with follower is intermeshing and is reached for the latching member that prevents that follower is loosening with the driving wheel that drives described follower; One end of described coupling shaft is inserted with latch and utilizes this latch and the second unit casing is connected and fixed, under the cooperation of described latching member, reverse described driving wheel by means of external force and make follower drive coupling shaft to carry out axial feed and lock or the described first module casing of loose unloading and second unit casing at described pinion stand.
Further, described latching member is sheathed on the described coupling shaft and is positioned at described holding cavity, and the two ends of latching member are connected to respectively on the sidewall of described follower and holding cavity.
Further, described coupling shaft comprises by limited step and separating and integrated the first shaft part and the second shaft part that the first shaft part and the second shaft part utilize respectively a clutch shaft bearing and the second bearing rotary to be installed in described the first supported hole and the second supported hole.
Further, radially be provided be used to the pin-and-hole that described latch is installed on described the first shaft part.
Further, the end face of described the first shaft part is provided with the interior threaded hole that connects with described pin-and-hole vertically.
Further, also be provided with one section double-screw bolt on described the second shaft part, accordingly, the inside of described follower is provided with the interior threaded hole that cooperates with this double-screw bolt phase spiral vertically.
Further, described pinion stand inside is formed with the holding cavity for accommodating described follower, be respectively equipped with the first supported hole and the second supported hole that mutually align on the relative two side of this holding cavity, described coupling shaft utilizes described the first supported hole and the rotation of the second supported hole to be installed on the described pinion stand.
Further, described pinion stand is comprised of pedestal and the limiting stopper that is fixed on the pedestal, and described the first supported hole and the second supported hole lay respectively on described pedestal and the limiting stopper.
Further, described pedestal is provided be used to the driving wheel mounting hole that described driving wheel is installed, and described driving wheel stretches in the described holding cavity and is meshed with driving gear, and the inside of described driving wheel is provided with vertically for the functional hole that drives the driving wheel rotation; Described limiting stopper is provided be used to the groove of dodging of dodging described driving wheel.
Further, described driving wheel and follower adopt the bevel gear engagement, and the shaft axis of described driving wheel is mutually vertical with the shaft axis of described follower.
The utility model embodiment's beneficial effect is: in the described pinion stand that the rotation of described coupling shaft is installed on the first module casing is fixedly connected with that the second unit casing is fixedly connected, described follower spiral rotating is sheathed on the described coupling shaft and carries out axial feed motion to drive coupling shaft, follower is driven by described driving wheel, the manual drives driving wheel drives described coupling shaft with the driving follower and carries out the purpose that axial feed motion can reach locking or loose unloading first module casing and second unit casing, and utilize described latching member loosening voluntarily to prevent follower, this lockup device, safe and reliable, and simple in structure, low cost of manufacture; In addition, it is that spiral cooperates with described follower that described coupling shaft is provided with one section double-screw bolt with longer distance, and its locking spacing is larger, the safety reliability in the time of also can guaranteeing to lock.
Description of drawings
Fig. 1 is the stereogram of the utility model embodiment LED display lockup device.
Fig. 2 is the explosive view of the utility model embodiment LED display lockup device.
Fig. 3 is the sectional view of the utility model embodiment LED display lockup device.
Embodiment
Need to prove that in the situation of not conflicting, embodiment and the feature among the embodiment among the application can mutually combine, and below in conjunction with the drawings and specific embodiments the utility model are described in further detail.For ease of describing, be as the criterion with direction shown in Figure 3 in the present embodiment.
As shown in Figure 1 to Figure 3, the utility model embodiment's LED display lockup device is used for connecting two adjacent unit boxs on the LED display, if these two unit boxs are first module casing and second unit casing, this LED display lockup device comprise pinion stand 1, rotation be installed on coupling shaft 2 on the pinion stand 1, be sheathed on pilot pin 2 one drive follower 3 that coupling shafts rotate, be meshed to drive with follower 3 follower 3 driving wheel 4, be inserted in latch 5 and latching member 7 on the coupling shaft 2.
Described pinion stand 1 is comprised of pedestal 8 and the limiting stopper 9 that is fixed on the pedestal 8, described pedestal 8 comprises the sidewall 82 that is provided with the first supported hole 81, be provided with the diapire 84 of driving wheel mounting hole 83, be built in opposite directions the pair of sidewalls 86 on the diapire 84, described the first supported hole 81 is step hole, described pair of sidewalls 86 and described sidewall 82, diapire 84 and the limiting stopper 9 common holding cavities 85 that are used for accommodating described follower that form its upper end open, the middle part of described each sidewall 86 all is recessed to form curved groove 861 to dodge described follower 3, and each sidewall 86 is provided with bolt hole 862 with the end face that described limiting stopper 9 matches.It is the heavy stand hole that the middle part of described limiting stopper 9 is provided with the second supported hole 91, the second supported holes 91, and the edge of limiting stopper 9 is provided be used to the attachment hole 92 that limiting stopper 9 is connected with pedestal 8.The attachment hole 92 that utilizes bolt 61 to pass on the limiting stopper 9 makes limiting stopper be fixedly connected with described pedestal 1, and the shaft axis of described the first supported hole 81 and the second supported hole 91 overlaps, and the shaft axis of the two all the shaft axis with described driving wheel mounting hole 83 is vertical.The bottom of described limiting stopper 9 is provided with dodges groove 93 to dodge described driving wheel 4, and the top of dodging groove 93 also is provided with for the positioning hole 94(that described driving wheel 4 is carried out axially locating and radial location as shown in Figure 3).
Described coupling shaft 2 comprises integrated the first shaft part 21 and the second shaft part 22 and the limited step 23 between the two, radially be provided with hinge last 24 on the first shaft part 21 and be used for installing described latch 5, also be provided with one section double-screw bolt 25 on the second shaft part 22, the length of double-screw bolt 25 determines the stroke of coupling shaft 2, one end of the first shaft part 21 is provided with the first screw hole 26 that connects with described hinge last 24 along shaft axis, be used for mounting screw so that described latch 5 is fixed in the described pin-and-hole 24, accordingly, the middle part of described latch 5 is provided with screw hole 51(as shown in Figure 3), an end of the second shaft part 22 is provided with the second screw hole 27 along shaft axis.The first shaft part 11 of described coupling shaft 2 and the second shaft part 12 utilize respectively clutch shaft bearing 62 and 63 rotations of the second bearing to be installed in described the first supported hole 81 and the second supported hole 91, described the second shaft part 22 utilizes a caging bolt (not shown) to carry out axial limiting, this caging bolt passes described the second supported hole 91 and is threaded fixing with the second screw hole 27 on described the second shaft part 22 end faces, because the bolt head of bolt is prevented that by 91 restrictions of the second supported hole the second shaft part 22 breaks away from described the second supported hole 91, utilizes the acting in conjunction of described limited step 23 and caging bolt that described coupling shaft 2 is carried out axial limiting.
The inside of described follower 3 is provided with the interior threaded hole 31 that cooperates with double-screw bolt 25 phase spirals on described the second shaft part 22 vertically, follower 3 utilizes these interior threaded hole 31 screw-casings to be located on the described coupling shaft 2, utilizes follower 3 and the spiral routing motion of coupling shaft 2 to be converted into the axial straight line feed movement of coupling shaft 2.Follower 3 is provided with the helical gear that is meshed with described driving wheel 4.It is loosening voluntarily to prevent follower 3 also to be provided with described latching member 7 between follower 3 and the described limiting stopper 9, guarantees that the rotation of follower 3 must could be driven by means of manpower by driving wheel 4.Described latching member 7 is sheathed on the described coupling shaft 2 and is positioned at described holding cavity 85, on the two ends difference described follower 3 of butt of latching member 7 and the sidewall (being described limiting stopper 9) of holding cavity 85.
Be meshed in the described driving wheel mounting hole 83 in the described pedestal 1 of described driving wheel 4 installations and with described follower wheel 3, the inside of driving wheel 4 is provided with functional hole 41 vertically so that rotatablely move with spanner drive driving wheel 4, for example, described functional hole 41 is inner hexagonal hole, and spanner adopts hexagon wrench.The other end that driving wheel 4 is provided with inner hexagonal hole 41 is provided with locating column 42 and matches with described positioning hole 94.Described driving wheel 4 adopts the bevel gear engagement with follower 3, and the shaft axis of described driving wheel 4 is mutually vertical with the shaft axis of described follower 3.
Working principle, described pinion stand 1 is mounted on the first module casing of LED display, utilize described coupling shaft 2 and on latch 5 and the second unit casing that will be connected connect, utilize inner hexagon spanner to drive described driving wheel 4 and then drive follower 3 and rotate, follower 3 drives coupling shaft 2 and carries out axial feed motion, owing to there is latching member 7, coupling shaft 2 can not become flexible voluntarily, reaching locking or the purpose of loose unloading first module casing and second unit casing, and lock safe and reliable.In addition, described coupling shaft 2 is provided with one section double-screw bolt 25 with longer distance and described follower 3 for spiral cooperates, and its pitch is longer, and it is larger namely to lock spacing, the safety reliability in the time of also can guaranteeing to lock.
Although illustrated and described embodiment of the present utility model, need to prove, in the situation of not conflicting, embodiment and the feature among the embodiment among the application can mutually combine, for the ordinary skill in the art, be appreciated that in the situation that does not break away from principle of the present utility model and spirit and can carry out multiple variation, modification, replacement and modification to these embodiments, scope of the present utility model is limited by claims and equivalency range thereof.