CN113638947A - Quick locking mechanism of LED display screen box - Google Patents

Abstract

The invention discloses a quick locking mechanism for an LED display screen box body, which comprises a first fixing component and a second fixing component which are respectively arranged on two unit box bodies, wherein the first fixing component comprises an installation shell, a threaded pressing block and a rotating piece; the second fixing component comprises a screw and a limiting sleeve, the limiting sleeve is installed at one end of the screw, the limiting sleeve supports against the other unit box body, the screw penetrates through the two unit box bodies and extends into the space between the two threaded pressing blocks through the mounting hole to be abutted against the two threaded pressing blocks, and the screw is in threaded fit with one side opposite to the two threaded pressing blocks. This application has the efficiency that improves the staff and carry out the dismouting to two unit boxes to be convenient for overhaul the effect of maintaining to two unit boxes of splicing mutually.

Description

Quick locking mechanism of LED display screen box

Technical Field

The invention relates to the field of display screen box body installation, in particular to a quick locking mechanism for an LED display screen box body.

Background

With the wider application of the LED fixed display screen and the LED leased display screen at present, the requirements on the universality, the installation and the daily maintenance of the fastening device connected between the display screen box bodies are higher and higher.

Large-scale LED display screen among the correlation technique comprises a plurality of LED display screens usually, and each LED display screen usually includes the unit box and installs in the display screen panel of unit box, connects two unit boxes usually when a plurality of LED display screens splice mutually, and two unit boxes of connection are fixed usually through a plurality of bolts.

In view of the above-mentioned related technologies, the inventor thinks that two unit box bodies fixed by bolts need to be repeatedly screwed by tools during disassembly and assembly, which is cumbersome to operate, has low disassembly and assembly efficiency, and is inconvenient to overhaul and maintain the two unit box bodies spliced with each other.

Disclosure of Invention

In order to improve the efficiency that the staff carries out the dismouting to two unit boxes to be convenient for overhaul and maintain two unit boxes of splicing mutually, this application provides a quick locking mechanism of LED display screen box.

The application provides a quick locking mechanism of LED display screen box adopts following technical scheme:

a quick locking mechanism for an LED display screen box body comprises a first fixing assembly and a second fixing assembly which are respectively installed on two unit box bodies, wherein the first fixing assembly comprises an installation shell, threaded press blocks and a rotating piece;

the second fixing component comprises a screw and a limiting sleeve, the limiting sleeve is installed at one end of the screw, the limiting sleeve supports against the other unit box body, the screw penetrates through the two unit box bodies and extends into the space between the two threaded pressing blocks through the installation hole to be in contact with the two threaded pressing blocks, and the screw is in threaded fit with one side opposite to the two threaded pressing blocks.

Through adopting above-mentioned technical scheme, when connecting two unit boxes, at first rotate towards the direction of keeping away from each other through rotating two screw thread briquetting of piece drive, wear to locate two unit boxes and mounting hole in proper order with the screw rod afterwards and lie in between two screw thread briquetting, reset rotating the piece afterwards, make screw rod and two screw thread piece inconsistent, rotate threaded rod to stop collar afterwards and support the state of tight one of them unit box, thereby realize being connected between two adjacent unit boxes, rotate two screw thread briquetting and insert the screw rod to setting up between two screw thread briquetting and make the screw rod can directly stretch into to being close to its position after two unit boxes are fixed, thereby be convenient for realize the high-speed joint to two unit boxes.

When two unit boxes are connected, need not to twist the bolt through the instrument is changeed soon repeatedly, thereby be favorable to improving the efficiency that the staff carries out the dismouting to between two unit boxes, be convenient for overhaul and maintain two unit boxes of concatenation mutually, simultaneously, when connecting two great size unit boxes, the fixed subassembly of first fixed subassembly and second can be pre-installed respectively in two unit boxes set up be convenient for realize the quick connection to two great size unit boxes, in addition, the fixed subassembly of first mounting and second can also realize fixing between the different thickness unit boxes, and the suitability is strong.

Optionally, screw thread briquetting fixedly connected with dwang and gag lever post, the dwang rotates to be installed in the installation shell, the installation shell is seted up and is supplied gag lever post pivoted installation spacing hole, it includes swivel becket and the portion of gripping to rotate the piece, the swivel becket with the coaxial setting of installation shell and with the installation shell rotate be connected, the swivel becket is seted up and is supplied gag lever post pivoted to rotate the spacing hole and supply the hole of sliding that the dwang slided, the portion of gripping fixed connection is in the outer peripheral face of swivel becket.

Through adopting above-mentioned technical scheme, thereby when rotating to the drive swivel becket of the portion of gripping application of force, the gag lever post drives the screw thread briquetting and revolutes the axis rotation of pole of rotating under the limiting displacement who installs spacing hole and rotate spacing hole to realize the motion of two screw thread briquetting orientation each other, and then be convenient for insert the screw rod to between two screw thread briquetting, the simple structure of staff drive two screw thread briquetting motion is made in the setting of gag lever post and the portion of gripping, convenient operation.

Optionally, the number of the holding portions is two, the two holding portions are located on the same horizontal line, the mounting shell is provided with two holding limiting grooves, and the two holding portions are located in the two holding limiting grooves respectively and are in sliding fit with the holding limiting grooves.

Through adopting above-mentioned technical scheme, the setting up of two portions of gripping makes the staff can rotate the spacing ring in the both sides of spacing ring horizontal direction to be favorable to guaranteeing the stability when the spacing ring rotates, simultaneously, the setting up of two spacing grooves of gripping plays two portions of gripping further limiting displacement when rotating, thereby is convenient for rotate the portion of gripping to required position.

Optionally, the first fixing component further comprises a torsion spring, and the torsion spring is used for resetting the rotating piece.

Through adopting above-mentioned technical scheme, rotate and rotate the direction motion that makes two screw thread briquetting court keep away from each other to insert the screw rod to between two screw thread briquetting, loosen and rotate the piece, rotate and can reset automatically under the spring action of torsional spring, thereby be favorable to further simple and convenient staff to carry out the operation of installing to two unit boxes, simultaneously, the torsional spring be provided with and do benefit to the stability of guaranteeing to rotate the back position that resets.

Optionally, the apron is installed at the top of installation shell, the screw thread briquetting, rotate piece and torsional spring all are located between installation shell and the apron, the one end of torsional spring is connected in rotating the piece, the other end is connected in the apron.

Through adopting above-mentioned technical scheme, the apron plays the cover to screw thread briquetting, rotation piece and torsional spring and closes the guard action to be favorable to guaranteeing the life of screw thread briquetting, rotation piece and torsional spring, simultaneously, be convenient for realize the installation to the torsional spring, and make the torsional spring after the installation difficult to touch with other parts mutually.

Optionally, the second fixing assembly further comprises a limiting part installed on another unit box body, the screw rod is provided with a sliding limiting groove extending along the axial direction of the screw rod, a free end of the screw rod, which is close to the limiting sleeve, is provided with a rotating groove which is annularly arranged and is communicated with the sliding limiting groove, and the limiting part is matched with the sliding limiting groove and the rotating groove in a sliding manner.

Through adopting above-mentioned technical scheme, when the locating part stretched into to the spacing inslot that slides, the locating part played the limiting displacement when moving along vertical direction to the screw rod to be favorable to guaranteeing the stability when the screw rod inserted the mounting hole along vertical direction motion, the setting up of rotating the groove makes the screw rod insert to be difficult for interfering with the locating part when rotating between the two screw thread briquettings, thereby be convenient for realize the rotation of screw rod.

Optionally, the second fixing assembly further comprises a return spring, and the return spring is arranged between the limiting sleeve and the other unit box body.

Through adopting above-mentioned technical scheme, thereby reset spring makes two screw thread briquetting move towards the direction of keeping away from each other to the elasticity of stop collar when removing the spacing to the screw rod, and the screw rod can break away from between two screw thread briquetting fast under reset spring's elasticity to the staff of being further convenient for dismantles two unit boxes.

Optionally, the screw rod fixedly connected with locating lever, the stop collar is seted up and is corresponded and with the locating lever grafting complex constant head tank in locating lever position, the stop collar is connected with handle portion.

Through adopting above-mentioned technical scheme, the positioning action when screw rod and stop collar installation is played in the cooperation of locating lever and constant head tank to the staff of being convenient for installs screw rod and stop collar, and the setting of handle portion is convenient for the staff application of force and is rotated the stop collar.

Optionally, still include locating component, locating component includes mounting panel, threaded rod, supports tight board and holder, the holder is used for making the mounting panel centre gripping be fixed in one of them unit box, threaded rod threaded connection is in the mounting panel, support tight board fixed connection in the one end of mounting panel, two unit box concatenations when the mounting panel is fixed in one of them unit box through the holder, two unit boxes all contradict in one side of mounting panel, just support the tight board and keep away from one side of holder towards another unit box.

Through adopting above-mentioned technical scheme, two unit box concatenations and are fixed in one of them unit box with locating component through the holder to revolve to twist the threaded rod and make to support when tight board supports tight unit box, the place position between two unit boxes is preliminary fixed, thereby is favorable to guaranteeing the stability of its place position after two unit boxes are stable fixed, thereby the holder is fixed to the centre gripping of one of them unit box and makes the holder can follow the reuse of unit box and pull down the realization to the holder.

Optionally, the clamping piece includes a rotating seat, a clamping plate and a reset coil spring, the rotating seat is rotatably connected to the mounting plate, the clamping plate is hinged to the rotating seat, and the reset coil spring is used for enabling the clamping plate to rotate towards the direction abutting against the mounting plate.

Through adopting above-mentioned technical scheme, press the clamp plate and keep away from one side of mounting panel and make the clamp plate towards the direction motion of keeping away from the mounting panel, arrange one of them unit box in between clamp plate and the mounting panel afterwards and loosen the clamp plate and can make one of them unit box fixed mutually with the mounting panel, the setting of rotating the seat makes to support the clamp plate and can rotate to and have the great state of placing the clearance between the mounting panel to be convenient for arrange the unit box in the fixed position of mounting panel, the suitability is strong.

In summary, the present application includes at least one of the following beneficial technical effects:

1. connect between two unit boxes, rotate two screw thread briquetting and insert the screw rod to setting up between two screw thread briquetting and make the screw rod can directly stretch into to being close to its position after fixing two unit boxes, thereby be convenient for realize the high-speed joint to two unit boxes, need not to twist the bolt repeatedly through the instrument at this in-process, thereby be favorable to improving the efficiency that the staff carries out the dismouting between two unit boxes, be convenient for overhaul and maintain two unit boxes of concatenation mutually.

2. The rotation piece can reset automatically under the elastic action of the torsion spring, so that the operation of installing the two unit box bodies by further simple and convenient workers is facilitated, and meanwhile, the torsion spring is arranged to be favorable for guaranteeing the stability of the position of the rotation piece after reset.

3. When the locating part stretches into to the limiting groove that slides, the locating part plays the limiting displacement to the screw rod along vertical direction motion to be favorable to guaranteeing the stability when the screw rod inserts the mounting hole along vertical direction motion.

Drawings

Fig. 1 is a schematic view of the overall structure of embodiment 1 of the present application.

Fig. 2 is an exploded view of the first fixing member and the second fixing member in embodiment 1 of the present application.

Fig. 3 is a partially enlarged schematic view of a portion a in fig. 2.

Fig. 4 is a schematic view of a state before the rotary member rotates in embodiment 1 of the present application.

Fig. 5 is a schematic view of a state in which the rotating member rotates in embodiment 1 of the present application.

Fig. 6 is a partially enlarged schematic view of a portion B in fig. 2.

FIG. 7 is a schematic view, partially in section, of a first fixation assembly and a second fixation assembly in an embodiment of the present application.

Fig. 8 is a schematic structural diagram of a positioning assembly in embodiment 2 of the present application.

Fig. 9 is a partially sectional view schematically showing a mounting plate in embodiment 2 of the present application.

Description of reference numerals:

1. a first case; 2. a second case; 3. mounting a shell; 4. pressing a threaded block; 5. a rotating member; 501. a rotating ring; 502. a grip portion; 6. a torsion spring; 7. a cover plate; 8. mounting holes; 9. a first through hole; 10. rotating the rod; 11. a limiting rod; 12. a sliding hole; 13. installing a limiting hole; 14. rotating the limiting hole; 15. a protective pad; 16. a holding limiting groove; 17. a screw; 18. a limiting sleeve; 19. a return spring; 20. a limiting member; 21. a second through hole; 22. a sliding limiting groove; 23. a rotating groove; 24. positioning a rod; 25. positioning a groove; 26. a bolt of the screw rod; 27. a handle portion; 28. mounting a plate; 281. a first plate body; 282. a second plate body; 283. a third plate body; 29. a threaded rod; 30. a propping plate; 31. a clamping member; 311. a rotating seat; 312. a clamping plate; 313. a reset coil spring; 32. a handwheel.

Detailed Description

The present application is described in further detail below with reference to figures 1-9.

Example 1.

The embodiment of the application discloses quick locking mechanism of LED display screen box. Referring to fig. 1 and 2, the quick locking mechanism of the LED display screen box comprises a first fixing component and a second fixing component, the first fixing component and the second fixing component are respectively installed on two unit boxes, the two unit boxes are all of frame-shaped structures with the same overall dimension, the two unit boxes need to be spliced with each other when in use, and the two unit boxes which are spliced with each other are respectively set as a first box 1 and a second box 2.

Referring to fig. 2 and 3, first fixed subassembly is including installation shell 3, screw thread briquetting 4, rotate piece 5, torsional spring 6 and apron 7, installation shell 3 is the inboard of rectangular distribution through four bolt fixed mounting in first box 1, installation shell 3 sets up the mounting hole 8 that runs through the setting, first through-hole 9 that runs through and be linked together with mounting hole 8 is seted up to first box 1, so that arrange adapting unit in installation shell 3 through first through-hole 9 and mounting hole 8, the one end that first box 1 was kept away from to installation shell 3 is the opening form.

Referring to fig. 1 and 3, the threaded pressing block 4 is just being provided with two and all being located the installation shell 3, two threaded pressing blocks 4 all are the arc, the equal fixedly connected with dwang 10 and gag lever post 11 of threaded pressing block 4, dwang 10 and gag lever post 11 are close to 4 curved both ends of threaded pressing block respectively and extend along the axis direction of threaded pressing block 4, the dwang 10 of two threaded pressing blocks 4 all rotates and installs in installation shell 3, two threaded pressing blocks 4 revolute when pole 10 rotates, the one end that two threaded pressing blocks 4 kept away from is respectively towards the direction rotation that is close to or keeps away from installation shell 3 axis.

Referring to fig. 3, the rotating member 5 includes a rotating ring 501 and a holding portion 502, the holding portion 502 is provided with two, the rotating ring 501 is located in the installation shell 3 and coaxially arranged with the installation shell 3, two sliding holes 12 are provided in the rotating ring 501, the sliding holes 12 extend circumferentially around the axis of the rotating ring 501, the rotating rods 10 of the two threaded press blocks 4 are respectively located in the two sliding holes 12 and are in sliding fit with the sliding holes 12, when the rotating ring 501 is rotated, the positions of the sliding holes 12 are rotated together, so that the two rotating rods 10 respectively slide in the two sliding holes 12.

With reference to fig. 4 and 5, the mounting case 3 is provided with two mounting limiting holes 13 distributed around the axis thereof, the rotating ring 501 is provided with two rotating limiting holes 14 distributed around the axis thereof and corresponding to the two mounting limiting holes 13, two ends of the limiting rod 11 of the two screw thread pressing blocks 4 in the length direction are respectively located in the mounting limiting holes 13 and the rotating limiting holes 14, when the rotating ring 501 rotates around the axis thereof, the two rotating rods 10 respectively slide in the two sliding holes 12, the limiting rods 11 of the two screw thread pressing blocks 4 move towards the axis direction close to or away from the mounting case 3 under the limiting action of the mounting limiting holes 13 and the rotating limiting holes 14, thereby facilitating the arrangement of other components between the two screw thread pressing blocks 4.

Referring to fig. 3, two grips 502 homogeneous body connect in the outer peripheral face of rotating ring 501 and lie in same water flat line setting to be convenient for the staff application of force to rotate rotating ring 501, for making the staff application of force difficult fish tail when rotating ring 501, the one end that rotating ring 501 was kept away from to two grips 502 all overlaps and is equipped with protection pad 15, and the material of protection pad 15 selects to be rubber.

With reference to fig. 3, the end of the mounting case 3 away from the first casing 1 is provided with two holding limiting grooves 16 distributed around the axis thereof, and the two holding portions 502 are respectively located in the two holding limiting grooves 16 and slidably fit with the holding limiting grooves 16, so as to limit the holding portions 502, i.e. the rotating member 5, when rotating, thereby facilitating the rotating member 5 to rotate to a desired position quickly. The apron 7 is installed in the one end of installing shell 3 and keeping away from first box 1 through two bolts to seal the opening to installing shell 3, thereby play the guard action to each part in installing shell 3. One end of the torsion spring 6 is fixedly connected to the rotating ring 501, and the other end of the torsion spring is fixedly connected to one side of the cover plate 7 facing the installation shell 3, so that the rotating ring 501 is reset after rotating, and the rotating ring 501 rotates to the initial position conveniently.

Referring to fig. 2 and 6, the second fixing assembly includes a screw 17, a limiting sleeve 18, a return spring 19 and a limiting member 20, the second box 2 is provided with a second through hole 21 penetrating through and corresponding to the first through hole 9, and the screw 17 penetrates through the second through hole 21 and is slidably engaged with the second through hole 21. When the screw 17 extends into the space between the two threaded pressing blocks 4 through the second through hole 21, the first through hole 9 and the mounting hole 8 and is abutted against the two threaded pressing blocks 4, the screw 17 is in threaded fit with one side opposite to the two threaded pressing blocks 4 so as to realize the fixed connection between the screw 17 and the two threaded pressing blocks 4.

Referring to fig. 6 and 7, the limiting member 20 is a limiting screw threadedly connected to the second casing 2, and one end of the limiting screw extends into the second through hole 21. The spacing groove 22 that slides that extends along its axial direction is seted up to screw rod 17, screw rod 17 keeps away from the one end of first box 1 and sets up the annular setting and with the rotation groove 23 that the spacing groove 22 is linked together that slides, stop screw all with the spacing groove 22 that slides and the cooperation of rotating groove 23, stop screw plays the limiting displacement to screw rod 17 when second through-hole 21 internal motion, thereby make screw rod 17 difficult rotation when second through-hole 21 internal motion, be favorable to guaranteeing the stability when screw rod 17 moves.

With continued reference to fig. 6 and 7, the free end of the screw 17 far away from the second box 2 is fixedly connected with a positioning rod 24 vertically arranged with the screw 17, and the position limiting sleeve 18 is provided with a positioning groove 25 corresponding to the position of the positioning rod 24 and in insertion fit with the positioning rod 24, so as to play a role in positioning the screw 17 and the position limiting sleeve 18 when being installed. The stop collar 18 has a screw bolt 26 in interference fit, and when the positioning rod 24 is inserted into the positioning slot 25, the screw bolt 26 penetrates through the screw 17 along the direction perpendicular to the axis of the screw 17, so as to fix the screw 17 and the stop collar 18.

Referring to fig. 2, the stop collar 18 is integrally connected to a handle portion 27 to facilitate the worker's application of force to rotate the stop collar 18. Outside screw rod 17 was located to the cover of reset spring 19, and reset spring 19's one end was connected in second box 2, the other end is connected in stop collar 18 to play the reset effect to screw rod 17, the screw rod 17 of being convenient for removes the position when its initial commentaries on classics attitude.

Referring back to fig. 2, the first fixing component and the second fixing component are arranged between the first box body 1 and the second box body 2 in two groups, and the first box body 1 and the second box body 2 are respectively provided with a first through hole 9 and a second through hole 21 which are correspondingly arranged with the two first fixing components and the second fixing components, so as to further ensure the stability of the positions of the first box body 1 and the second box body 2 after being fixed mutually.

The implementation principle of the embodiment 1 of the application is as follows: when connecting first box 1 and second box 2, at first rotate swivel ring 501 through portion of gripping 502, thereby make two screw thread briquettings 4 revolve the direction rotation of moving pole 10 towards keeping away from each other, and then make the clearance increase between two screw thread briquettings 4, wear to locate first through-hole 9 with screw rod 17 in proper order afterwards, second through-hole 21 and mounting hole 8 and make screw rod 17 be located between two screw thread briquettings 4, loosen portion of gripping 502 afterwards, it resets under torsional spring 6's spring action to rotate 5, thereby make one side that two screw thread briquettings 4 are close to mutually and screw rod 17 looks screw-thread fit. Then the limiting sleeve 18 is rotated through the holding part 502, the screw 17 rotates along with the limiting sleeve 18, and when the limiting sleeve 18 is tightly propped against one side of the second box body 2, the first box body 1 and the second box body 2, namely the adjacent two unit box bodies, are connected. The two thread pressing blocks 4 are rotated, and the screw 17 is inserted between the two thread pressing blocks 4, so that the screw 17 can directly stretch into the position close to the position where the screw is fixed to the two unit box bodies, and the quick connection of the two unit box bodies is convenient to realize.

Example 2.

Referring to fig. 8, the difference between embodiment 2 and embodiment 1 is that the LED display screen box quick locking mechanism further includes a positioning assembly, the positioning assembly includes a mounting plate 28, a threaded rod 29, a tightening plate 30 and a clamping member 31, a longitudinal section of the mounting plate 28 is a shape of \ 21274, the mounting plate 28 includes a first plate 281, a second plate 282 and a third plate 283 that are integrally connected, and the first plate 281 and the third plate 283 are arranged in parallel.

Referring to fig. 8 and 9, the clamping member 31 includes a rotating seat 311, a clamping plate 312 and a return coil spring 313, the rotating seat 311 is rotatably connected to the first plate 281, the clamping plate 312 is hingedly mounted on the rotating seat 311, the return coil spring 313 is mounted between the clamping plate 312 and the rotating seat 311, so that the clamping plate 312 rotates toward the direction of the first plate 281 under the elastic force of the return coil spring 313, thereby clamping and fixing the components located between the first plate 281 and the clamping plate 312, and the rotation fit between the rotating seat 311 and the first plate 281 enables the abutting plate 30 to rotate to a state with a large placing gap between the abutting plate 281 and the first plate 281, thereby facilitating the components to be fixed, i.e., the unit box, to be placed at the position where the unit box is fixed with the mounting plate 28, and having strong applicability.

With continued reference to fig. 8 and 9, the threaded rod 29 is threadedly coupled to the third plate 283, and a hand wheel 32 is fixedly coupled to an end of the threaded rod 29 away from the third plate 283 to facilitate rotation of the threaded rod 29 by a worker. The tightening plate 30 is fixedly connected to one end of the threaded rod 29 facing the first plate 281, and when the threaded rod 17 rotates, the tightening plate 30 can move towards a direction close to or away from the first plate 281, so that the threaded rod 29 can further tighten and fix the component fixed by the tightening plate 30 and the first plate 281.

The implementation principle of embodiment 2 of the present application is as follows: pressing the side of the clamping plate 312 away from the first plate 281 moves the clamping plate 312 in a direction away from the first plate 281, and then placing one of the unit cases in the gap between the clamping plate 312 and the first plate 281 while making the unit case contact with the second plate 282, and after releasing the clamping plate 312, the unit case is fixed with the mounting plate 28 under the limiting action of the clamping plate 312 and the first plate 281.

After that, arrange another unit box in the clearance between fixed unit box and third plate body 283 and inconsistent with second plate body 282, rethread hand wheel 32 revolves to twist threaded rod 29 and makes and support tight board 30 and support tight another unit box, thereby realize the preliminary location to position between two unit boxes, and be favorable to guaranteeing its two unit boxes of two unit box stable fixed back smoothness that is close to one side mutually, simultaneously, locating component can take off from two unit boxes after two unit boxes are stable fixed, thereby make locating component can carry out used repeatedly.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (10)

1. The utility model provides a quick locking mechanism of LED display screen box which characterized in that: the device comprises a first fixing component and a second fixing component which are respectively arranged on two unit box bodies, wherein the first fixing component comprises an installation shell (3), two threaded pressing blocks (4) and a rotating piece (5), the installation shell (3) is arranged on one unit box body, an installation hole (8) penetrating through the installation shell (3) is formed in the installation shell, the two threaded pressing blocks (4) are arranged in an opposite mode, the two threaded pressing blocks (4) are both rotatably arranged in the installation shell (3), and the rotating piece (5) is used for driving the two threaded pressing blocks (4) to rotate towards the direction away from each other;

the second fixing component comprises a screw rod (17) and a limiting sleeve (18), the limiting sleeve (18) is installed at one end of the screw rod (17), the limiting sleeve (18) supports against another unit box body, the screw rod (17) penetrates through the two unit box bodies and stretches into the space between the two thread pressing blocks (4) through the mounting hole (8) to be in interference with the two thread pressing blocks (4), and the screw rod (17) is in thread fit with one side opposite to the two thread pressing blocks (4).

2. The quick locking mechanism of the LED display screen box body according to claim 1, characterized in that: threaded pressing block (4) fixedly connected with dwang (10) and gag lever post (11), dwang (10) are rotated and are installed in installation shell (3), installation shell (3) have been seted up and have been supplied gag lever post (11) pivoted installation spacing hole (13), rotate piece (5) including swivel becket (501) and portion of gripping (502), swivel becket (501) with installation shell (3) coaxial setting and with installation shell (3) rotate to be connected, swivel becket (501) are seted up and are supplied gag lever post (11) pivoted rotation spacing hole (14) and supply sliding hole (12) of dwang (10), portion of gripping (502) fixed connection is in the outer peripheral face of swivel becket (501).

3. The quick locking mechanism of the LED display screen box body according to claim 2, characterized in that: the two holding parts (502) are arranged, the two holding parts (502) are located on the same horizontal line, the mounting shell (3) is provided with two holding limiting grooves (16), and the two holding parts (502) are respectively located in the two holding limiting grooves (16) and are in sliding fit with the holding limiting grooves (16).

4. The quick locking mechanism of the LED display screen box body according to claim 2, characterized in that: the first fixing component further comprises a torsion spring (6), and the torsion spring (6) is used for resetting the rotating piece (5).

5. The quick locking mechanism of the LED display screen box body according to claim 4, characterized in that: apron (7) are installed at the top of installation shell (3), screw thread briquetting (4), rotate piece (5) and torsional spring (6) all are located between installation shell (3) and apron (7), the one end of torsional spring (6) is connected in rotating piece (5), the other end is connected in apron (7).

6. The quick locking mechanism of the LED display screen box body according to claim 1, characterized in that: the second fixing component further comprises a limiting part (20) installed on the other unit box body, a sliding limiting groove (22) extending along the axial direction of the screw rod (17) is formed in the screw rod (17), a free end, close to the limiting sleeve (18), of the screw rod (17) is provided with a rotating groove (23) which is annularly arranged and communicated with the sliding limiting groove (22), and the limiting part (20) is matched with the sliding limiting groove (22) and the rotating groove (23) in a sliding mode.

7. The quick locking mechanism of the LED display screen box body according to claim 6, characterized in that: the second fixing assembly further comprises a return spring (19), and the return spring (19) is arranged between the limiting sleeve (18) and the other unit box body.

8. The quick locking mechanism of the LED display screen box body according to claim 1, characterized in that: the screw rod (17) fixedly connected with locating lever (24), stop collar (18) are seted up with locating lever (24) position correspond and with locating lever (24) grafting complex constant head tank (25), stop collar (18) are connected with handle portion (27).

9. The quick locking mechanism of the LED display screen box body according to claim 1, characterized in that: still include locating component, locating component includes mounting panel (28), threaded rod (29), supports tight board (30) and holder (31), holder (31) are used for making mounting panel (28) centre gripping be fixed in one of them unit box, threaded rod (29) threaded connection in mounting panel (28), support tight board (30) fixed connection in the one end of mounting panel (28), two unit box concatenations mounting panel (28) when being fixed in one of them unit box through holder (31), two unit boxes all contradict in one side of mounting panel (28), just support tight board (30) towards one side that holder (31) was kept away from to another unit box.

10. The quick locking mechanism of the LED display screen box body according to claim 9, characterized in that: the clamping piece (31) comprises a rotating seat (311), a clamping plate (312) and a reset coil spring (313), the rotating seat (311) is rotatably connected to the mounting plate (28), the clamping plate (312) is hinged to the rotating seat (311), and the reset coil spring (313) is used for enabling the clamping plate (312) to rotate towards the direction of abutting against the mounting plate (28).

Images