CN111005922A

CN111005922A - Self-locking rebounder and front maintenance splicing screen support

Info

Publication number: CN111005922A
Application number: CN201911344219.2A
Authority: CN
Inventors: 张莹; 霍袁; 王文涛; 刘成
Original assignee: Zhuhai Runxingtai Electrical Equipment Co Ltd
Current assignee: Zhuhai Runxingtai Electrical Equipment Co Ltd
Priority date: 2019-12-24
Filing date: 2019-12-24
Publication date: 2020-04-14
Anticipated expiration: 2039-12-24
Also published as: CN111005922B

Abstract

The invention discloses a self-locking rebounder and a front-maintenance spliced screen support, and relates to the technical field of spliced screens. Wherein the concatenation screen support includes: the self-locking device comprises a first bracket component, a second bracket component and a self-locking rebounder; the self-locking rebounder is arranged on the first side face of the first support assembly, the second support assembly is connected with the first side face of the first support assembly, and an adapting part is arranged on the second support assembly; the self-locking rebounder can lock or unlock the adapting part so as to enable the second bracket component to be close to or far away from the first bracket component. By adopting the scheme of the invention, the use of an oversize lock structure in the prior art can be avoided, and compared with the use of the existing beetle type lock, the thickness of the bracket can be greatly reduced, so that the spliced screen bracket with small thickness can be obtained.

Description

Self-locking rebounder and front maintenance splicing screen support

Technical Field

The invention relates to the technical field of spliced screens, in particular to a self-locking rebounder and a front-maintenance spliced screen support.

Background

The screen splicing technology is a technology for splicing more than two special large-screen displays with extremely narrow frames together to form a super large screen. The splicing screen mounting process needs fixing and adjusting to eliminate mounting errors, and after the mounting is completed, maintenance, debugging, cable mounting and the like are needed. At present, the splicing screen support mainly comprises two installation forms: post-maintenance and pre-maintenance; the post-maintenance installation means that a maintenance space of 0.8-1 meter is reserved behind the spliced screen, the splicing screen is suitable for large display screens, the inspection and the maintenance are convenient and efficient, and for the large display screens installed on the outer wall of a building, the post-maintenance mode is more convenient for maintenance personnel to enter and operate. The front maintenance installation means that the back space of a wall is not occupied, wall-hung or embedded installation is adopted, and the installation, debugging and maintenance mode is carried out from the front; the thickness of the whole structure of the display screen can be greatly reduced, the space can be saved while the effect is better ensured, and the novel installation mode of the spliced screen is realized.

In the concatenation screen installation of front maintenance mode, need pop out the concatenation unit by the front, lock after debugging well again, among the prior art, often need adopt the auto-lock rebounder of "beetle" formula, but the auto-lock rebounder size of "beetle" formula is very big, and the support that adopts such structure often thickness is too big, is not conform to the demand of current user to thin concatenation screen structure.

Disclosure of Invention

In order to solve the problem that the thickness of a spliced screen support is large in the prior art, a self-locking rebounder capable of effectively reducing the thickness and a front maintenance spliced screen support are provided.

According to an aspect of the present invention, there is provided a self-locking rebounder including: the lock comprises a lock cylinder, a pressure-bearing gasket sleeved outside the lock cylinder, a locking plate positioned in an inner cavity of the lock cylinder and an elastic power assembly; the locking plate is provided with a clamping part, one end of the elastic power assembly is connected with the locking column, and the other end of the elastic power assembly is in contact with the locking plate;

the pressure-bearing gasket extrudes the locking plate under the action of external pressure and triggers the elastic power assembly, and the elastic power assembly pushes the locking plate to rotate around a preset shaft, so that the clamping portion is exposed or retracted relative to the side wall of the lock column, and the pressure-bearing gasket is locked or unlocked by the clamping portion.

According to the self-locking rebounder provided by the embodiment of the invention, the pressure-bearing gasket is finally locked or unlocked by controlling the rotation of the locking plate arranged in the lock cylinder, and the size of the lock cylinder only needs to meet the requirement that the locking plate can rotate and the clamping part of the locking plate can be exposed from the side wall of the lock cylinder, so that the size of the whole locking piece is beneficial to control, the height of the lock cylinder can be effectively reduced, and the size of the self-locking rebounder is reduced.

Further, in a preferred embodiment of the present invention, the method further comprises: a base and a first elastic part; the lock cylinder is arranged on the base, and the pressure-bearing gasket is connected with the base through the first elastic part.

According to another aspect of the present invention, there is provided a front maintenance tiled screen mount comprising: the self-locking rebounder comprises a first bracket component, a second bracket component and any one of the self-locking rebounders;

the self-locking rebounder is arranged on the first side face of the first support assembly, the second support assembly is connected with the first side face of the first support assembly, and the second support assembly is provided with an adapting part; the self-locking rebounder can lock or unlock the adapting part so that the second bracket component is fixed or moved relative to the first bracket component.

Further, in a preferred embodiment of the present invention, the second bracket assembly includes: the first support frame, the second support frame and the third support frame are sequentially arranged along the direction far away from the first support frame component, and the adaptive part is arranged on the first support frame;

one side of the first support frame is connected with the first support frame assembly, the other side of the first support frame is connected with the second support frame, and the third support frame is slidably mounted on the second support frame along a first direction.

Further, in a preferred embodiment of the present invention, the front maintenance splice screen bracket further includes: an adjustment module; the second supporting frame is connected with the first supporting frame through the adjusting module; the adjusting module is located on the circumferential edge of the second supporting frame and used for adjusting the distance between the second supporting frame and the first supporting frame.

Further, in a preferred embodiment of the present invention, a plurality of rotation shafts extending in the first direction are provided on the first support frame;

a first side edge of the second support frame is connected with a first connecting part of the first support frame through one of the rotating shafts, and a second side edge of the second support frame, which is opposite to the first side edge of the second support frame, is connected with a second connecting part of the first support frame through the other rotating shaft; and a limiting groove is formed in the second supporting frame, the limiting groove corresponds to the rotating shaft, and the rotating shaft can move relative to the limiting groove.

Further, in a preferred embodiment of the present invention, a first slide way extending along a first direction is disposed on the second support frame, a hook is disposed on a side surface of the third support frame facing the second support frame, the hook is hooked on the first slide way, and the hook is used to adjust a length of the third support frame in a second direction, where the first direction is perpendicular to the second direction.

Further, in a preferred embodiment of the present invention, the front maintenance splice screen bracket further includes: one end of the elastic part is connected with the first side surface of the first bracket component, and the other end of the elastic part is a free end; the second bracket component moves relative to the first bracket component under the elastic action of the elastic component.

Further, in a preferred embodiment of the present invention, the second bracket assembly is connected to the first bracket assembly by a connecting assembly, the connecting assembly includes a first arm and a second arm rotatably connected to each other;

one end of the first support arm is connected with the first support assembly in a sliding mode, and the other end of the first support arm is fixedly connected with the second support assembly; one end of the second support arm is fixedly connected with the first support assembly, and the other end of the second support arm is in sliding connection with the second support assembly; under the second bracket component and the first bracket component locking state, the first support arm and the second support arm are arranged side by side.

Further, in a preferred embodiment of the present invention, a slot is disposed in the first bracket component corresponding to the position of the self-locking rebounder, and the self-locking rebounder is engaged with the slot.

The front maintenance splicing screen bracket provided by the embodiment of the invention can avoid using a lock structure with overlarge size in the prior art, and can greatly limit the thickness of the bracket compared with the existing beetle type lock, so that the splicing screen bracket with small thickness can be obtained.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is an exploded view of a support according to an embodiment of the present invention;

FIG. 2 is a schematic view of a stent deployed according to an embodiment of the present invention;

FIG. 3 is a schematic view of a compressed state of a stent according to an embodiment of the present invention;

FIG. 4 is a schematic structural view of a first frame assembly according to an embodiment of the present invention;

FIG. 5 is an enlarged schematic view at A in FIG. 4;

fig. 6 is a schematic structural diagram of a first supporting frame according to an embodiment of the present invention;

FIG. 7 is an enlarged schematic view at B of FIG. 6;

fig. 8 is a schematic structural diagram of a second supporting frame according to an embodiment of the present invention;

FIG. 9 is an enlarged schematic view at C of FIG. 8;

fig. 10 is a schematic perspective view of a third supporting frame according to an embodiment of the present invention; FIG. 11 is a schematic view of a third supporting frame according to an embodiment of the present invention;

FIG. 12 is a schematic structural view of a locking element according to an embodiment of the present invention;

FIG. 13 is a top view of a locking element provided in accordance with one embodiment of the present invention;

FIG. 14 is a cross-sectional view taken along line C-C of FIG. 13;

FIG. 15 is a schematic structural diagram of a conditioning module provided in accordance with an embodiment of the present invention;

FIG. 16 is a schematic structural diagram of a connecting assembly according to an embodiment of the present invention;

FIG. 17 is a schematic structural diagram of an adapter according to an embodiment of the present invention;

fig. 18 is a schematic structural diagram of a rotating shaft according to an embodiment of the present invention.

Reference numerals:

1. a first bracket assembly;

11. an elastic member;

12. self-locking rebounder:

121. a base 1211 and a groove; 122. a lock cylinder 1221 and a through groove;

123. a pressure-bearing gasket; 124. a locking plate 1241 and a clamping part;

125. elastic power component 1251, pushing body 1252, second elastic part;

126. a pin shaft; 127. a first elastic part;

13. first slide rail set spare:

131. a first side rail; 132. a second side rail; 133. a chute 1331, a mounting hole;

14. first fixed trunnion assembly:

141. a first fixed part; 142. a second fixed part;

15. a through hole; 16. a fixing hole; 17. hollowing out holes; 18. decorating the plug;

2. a second bracket assembly;

21. a first support frame:

211. an adapting part 2111, a pressing sheet 2112 and a through hole; 212. a limiting part;

213. a rotating shaft; 214. a first connection portion; 215. a second connecting portion;

22. a second support frame:

221. a limiting groove; 222. a first slideway; 223. a shim hole;

23. third support frame 23:

231. a hook 2311, an adjustable hook 2312, a baffle 2313 and a positioning part,

2314. a first positioning pin 2315, a second positioning pin 2316 and a first adjusting pin;

232. an adapter hole; 233. a middle frame gasket;

24. an adjustment module, 241, a first gear, 242, a second gear; 243. adjusting the bolt;

244. a fixing frame 2441, a lap joint portion;

25. a limiting gasket; 26. a second adjustment pin; 27. avoiding holes; 28. bolt holes;

3. connecting components:

31. a first support arm 311, a slider shaft 312 and a fixed shaft;

32. a second support arm; 33. a first connecting shaft; 34. an arm butt joint spacer;

4. reinforcing ribs 5 and screws.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.

As shown in fig. 1-3, an embodiment of the present application provides a front maintenance tiled screen bracket, including: the display screen support comprises a first support assembly 1 used for being fixedly connected with a wall and a second support assembly 2 used for fixing a display screen, wherein the second support assembly 2 is connected with a first side face of the first support assembly 1, and the second support assembly 2 can be close to or far away from the first support assembly 1. The first bracket assembly 1 is connected with the second bracket assembly 2 through a connecting assembly 3, and the connecting assembly 3 can be folded or unfolded to drive the second bracket assembly 2 to approach or depart from the first bracket assembly 1.

The invention also provides a self-locking rebounder which is arranged on the first support assembly 1 of the front maintenance splicing screen support, the second support assembly 2 is provided with an adapting part 211, the self-locking rebounder 12 is arranged corresponding to the adapting part 211, and the self-locking rebounder 12 can lock or unlock the adapting part 211, so that the first support assembly 1 and the second support assembly 2 are locked or unlocked, and the first support assembly 1 is fixed or moved relative to the second support assembly 2. The thickness of the splicing screen support in the prior art is about 120mm-150mm, the beetle type lock in the splicing screen support is convenient to use, but the size of the lock is large, the splicing screen support is placed in the support, the thickness of the support is 80mm at the lowest, and therefore the processing of the lock is very critical in the process of improving the thickness of the support. Use auto-lock bounce-back ware 12 in this application, can solve the concatenation screen support and use among the prior art oversize lock structure, cause the too big problem of concatenation screen support thickness, the thickness of effective control concatenation screen support brings better use experience for the user.

The self-locking rebounder 12 referred to in the present example, as shown in fig. 12 to 14, includes: the lock comprises a lock cylinder 122, a pressure-bearing gasket 123 sleeved outside the lock cylinder 122, a lock sheet 124 positioned in an inner cavity of the lock cylinder 122 and an elastic power assembly 125; the locking plate 124 has a clamping portion 1241, one end of the elastic power assembly 125 is connected to the lock cylinder 122, and the other end of the elastic power assembly 125 contacts the locking plate 124; the pressure-bearing gasket 123 presses the locking plate 124 under the action of external pressure and triggers the elastic power assembly 125, and the elastic power assembly 125 pushes the locking plate 124 to rotate around a preset axis, so that the clamping portion 1241 is exposed or retracted relative to the side wall of the lock cylinder 122, and the clamping portion 1241 locks or unlocks the pressure-bearing gasket 123. Auto-lock bounce-back ware 12 sets up in the inside locking plate 124 rotation of lock post 122 through control and finally realizes locking or unblock pressure-bearing gasket 123, as long as the size of lock post 122 satisfies can supply the locking plate 124 to rotate to guarantee that the joint portion 1241 of locking plate 124 can expose by the relative lock post 122 lateral wall can, consequently the size does benefit to control, can effective control lock post 122 the height, compares with using current beetle formula lock structure, can the thickness of the support that contracts to a great extent limit.

In this embodiment, an elastic member 11 is further disposed on the first side surface of the first bracket assembly 1, one end of the elastic member 11 is connected to the first side surface of the first bracket assembly 1, and the other end is a free end. When the display screen and the second bracket assembly 2 need to be popped up for adjustment, the self-locking rebounder 12 is opened to unlock the adapting portion 211, and the second bracket assembly 2 and the display screen pop up under the elastic action of the elastic member 11. In the process, the elastic force of the elastic piece 11 can be used for realizing pressing and popping, the force is proper, the occupied size of the elastic piece 11 in a compressed state is small, the starting space does not need to be reserved for the elastic piece 11, and the thickness can be effectively reduced.

In the prior art, a thrust gas spring (a pressure cylinder structure which realizes the movement of a piston rod based on pressure difference) is often adopted in a support product so as to pop up a spliced screen. The thrust gas spring also needs to reserve an initial angle for the thrust gas spring in an initial state, so that normal starting can be guaranteed. The structure of the elastic member 11 is not particularly limited in the present application, and preferably, in order to ensure that the elastic member 11 has a suitable elastic force and a small volume, the elastic member 11 may be an elastic steel sheet or a pagoda-shaped thrust spring, in this embodiment, the elastic member 11 is an elastic steel sheet as shown in fig. 4 and 5, one end of the elastic steel sheet is fixed to the first bracket component 1 by a screw 5, and the other end is a free end. The thickness of the elastic steel sheet is small, the starting height is not needed, and the lower the free end of the elastic steel sheet is pressed, the larger the generated elastic force is; the problem that the thickness of the support is large due to the fact that the gas spring is arranged can be effectively solved.

Fig. 1-2 show the position relationship of the self-locking rebounder 12 in the integral support structure, and fig. 12-14 show the schematic structural view of the self-locking rebounder 12 related in this embodiment, where the height of the self-locking rebounder 12 is 22mm (the thickness of the support required to be occupied when normally installed in the support is 22mm), and the specific structure of the self-locking rebounder further includes: the base 121 and the lock cylinder 122 are disposed on the base 121, and the pressure-bearing pad is connected to the base 121 through the first elastic portion 127, wherein the lock plate is a polygonal lock plate 124.

As shown in fig. 12-14, the lock cylinder 122 is provided with a through slot 1221 along the axial direction thereof, the through slot 1221 forms an inner cavity of the lock cylinder 122 inside, the polygonal locking piece 124 is disposed in the through slot 1221, and the elastic power assembly 125 in contact with the polygonal locking piece 124 is disposed at the bottom of the through slot 1221; the polygonal locking piece 124 is fixed with the side wall of the through slot 1221 by the pin 126, and the polygonal locking piece 124 can rotate around the pin 126 under the pushing of the elastic power assembly 125.

The first elastic part 127 may be a spring sleeved outside the lock cylinder 122; the pressure-bearing gasket 123 can compress the first elastic portion 127 under the action of pressure, the pressure-bearing gasket 123 can extrude the polygonal locking plate 124 in the process, the force can be transmitted to the elastic power assembly 125, and the elastic power assembly 125 pushes the polygonal locking plate 124 to rotate, so that the clamping portion 1241 of the polygonal locking plate 124 is exposed or retracted from the through groove 1221, and the clamping portion 1241 is clamped with or unlocked from the pressure-bearing gasket 123.

The polygonal locking plate 124 is an iron sheet with four acute protruding angles, and each two acute angles closest to the polygonal locking plate are taken as a group to form two groups of acute angle structures, and the two groups of acute angle structures are symmetrically distributed about the pin shaft 126, the two acute angles of each group form the clamping portion 1241, that is, two opposite clamping portions 1241, and an included angle formed between the two acute angles in each clamping portion 1241 is about 120 °. The distance from the sharp tip of each acute angle to the pin shaft 126 is the same and is larger than the radius of the pressure-bearing gasket 123. In other embodiments, the locking plate can also be provided with a clamping portion 1241 having an arc-shaped bent structure.

The elastic power assembly 125 includes: a pushing body 1251 and a second elastic part 1252, wherein one end of the second elastic part 1252 is connected to the bottom wall of the through slot 1221, the other end of the second elastic part 1252 is connected to the pushing body 1251, and the pushing body 1251 is in contact with the polygonal locking piece 124. In this embodiment, the pushing body 1251 is a steel ball structure, the steel ball structure can effectively push the polygonal locking plate 124, and the second elastic portion 1252 is a spring.

On the premise of ensuring the normal locking function of the self-locking rebounder 12, the thickness control of the self-locking rebounder 12 in the installation process is also considered in the present application, as shown in fig. 12, a groove 1211 is provided on the base 121, and the locking column 122 is disposed in the groove 1211; the groove 1211 forms a protrusion on a side of the base 121 facing the first bracket assembly 1; the first bracket component 1 is provided with a slot, and a protruding part formed on the base 121 is embedded with the slot on the first bracket component 1, so that positioning installation and thickness control are facilitated. The pressure-bearing gasket 123 is fixedly connected with the free end of the first elastic part 127, the pressure-bearing gasket 123 moves along the axial direction of the lock column 122 under the driving of the first elastic part 127, the lock column 122 is arranged in the groove 1211, the minimum height of the lock column 122 can be set while the elastic displacement required by the pressure-bearing gasket 123 is ensured, the thickness of the whole support is effectively controlled, and the bulge formed by the groove 1211 can be embedded into the first support assembly 1, so that the thickness can be saved by 2 mm.

On the second bracket assembly 2, the fitting part 211 is matched with the self-locking rebounder 12, as shown in fig. 17, the fitting part 211 is provided in the form of a switch fixing piece, the fitting part 211 comprises three sheet structures which are connected in sequence in a step shape, and the pressing piece 2111 protruding towards the base 121 is included, and the pressing piece 2111 is the sheet structure located in the middle of the switch fixing piece, namely the lowest part of the step structure. The pressing sheet 2111 is provided with a through hole 2112 allowing the locking column 122 to penetrate out, the pressing sheet 2111 is used for press-fitting the pressure-bearing pad 123, and the pressing sheet 2111 can be clamped and locked at the clamping portion 1241. In the process of locking or unlocking according to the pressure, the pressing sheet 2111 moves together with the pressure-bearing pad 123; when the second bracket assembly 2 is ejected successfully, the pressing sheet 2111 is separated from the pressure-bearing pad 123. Further, the sheet-like structures at both ends of the pressing piece 2111 are fixed to the second frame assembly 2 by two screws 5, the base 121 is fixed to the first frame assembly 1 by four screws 5, and the base 121 is provided with bolt holes 28.

The above-mentioned self-locking rebounder 12 specifically realizes the following locking or unlocking process, and the following related orientation definition can refer to fig. 14:

with reference to the orientation of fig. 14, the locking tab 124 and the pin 126 are positioned to the left of the axis of the lock cylinder 122, and the resilient power component 125 is also positioned to the left of the axis of the lock cylinder.

(1) In the initial state, the polygonal locking plate 124 in the self-locking rebounder 12 exposes a corner at the through slot 1221 near the side of the pin 126, taking the positions of the structures of the self-locking rebounder 12 in fig. 14 as an example (the position of the pin 126 is deviated to the left side of the axis of the lock cylinder 122 in this case), that is, in the initial state, the polygonal locking plate 124 exposes a corner at the lower left of the lock cylinder 122, but does not expose at the upper right of the lock cylinder 122; passing the pressure pad 123 through the lock cylinder 122 retracts the exposed corner of the polygonal locking tab 124 into the through slot 1221.

(2) And (3) pushing and locking process:

the second bracket component 2 with the display screen is pushed to the first bracket component 1, the adaptation part 211 on the second bracket component 2 pushes the pressure-bearing gasket 123 of the self-locking rebounder 12 to move, the pressure-bearing gasket 123 continues to be pressed downwards, the corner of the polygonal locking plate 124 retracted in the initial state is exposed again, and at the moment, the adaptation part 211 and the pressure-bearing gasket 123 are already positioned in the clamping part 1241 where the exposed corner is positioned. It should be noted that the force of the pressure-bearing pad 123 acting on the polygonal locking tab 124 is also transmitted to the elastic power assembly 125, and the elastic power assembly 125 in turn provides a rotational power to the polygonal locking tab 124, so that the polygonal locking tab 124 rotates clockwise.

When the second bracket assembly 2 is pushed to the bottom, the pushing is stopped and the hand is loosened, the second bracket assembly 2 with the display screen is popped up under the action of the elastic element 11 and the first elastic part 127, and simultaneously the pressure-bearing gasket 123 and the adapting part 211 push the exposed corner of the polygonal locking piece 124 to rotate clockwise and upwards. When the polygonal locking plate 124 rotates to the position where the protruding acute angle opposite to the exposed angle is abutted to the inner wall of the pressure-bearing gasket 123, the polygonal locking plate 124 cannot rotate continuously, and the pressure-bearing gasket 123 and the adapting part 211 are locked at the clamping part 1241; the pressure-bearing pad 123 and the adapter 211 spring out a distance and remain below the pin 126.

In the locked state, the pressure-bearing pad 123 and the first elastic part 127 of the self-locking rebounder 12 are both located between the adapting part 211 and the base 121, and the pressure-bearing pad 123 is tightly attached to the pressing sheet 2111 of the adapting part 211; at this time, the pressure receiving pad 123 and the adapter 211 are locked together in a locking portion 1241 of the polygonal locking piece 124, and a projecting acute angle opposite to the locking portion 1241 abuts against an inner wall of the pressure receiving pad 123, thereby achieving locking.

(3) Pushing an unlocking process:

in the locked state, the second bracket assembly 2 with the display screen is continuously pushed, the pressure-bearing gasket 123 and the adapting part 211 drive the polygonal locking piece 124 to move downwards, and thus the polygonal locking piece 124 is released; the released polygonal locking tab 124 continues to rotate clockwise upward and becomes exposed at a corner to the upper left of the lock cylinder 122, while the other portions of the polygonal locking tab 124 are located inside the through slot 1221.

The second bracket assembly 2 with the display screen is ejected outwards under the action of the elastic piece 11, and due to the position of the polygonal locking piece 124, when the pressure-bearing gasket 123 and the adapting portion 211 pass through the polygonal locking piece 124, the exposed corner of the polygonal locking piece 124 can be directly pushed back into the through groove 1221 without being locked, so that the second bracket assembly 2 can be unlocked smoothly. In this process, the pressure-bearing pad 123 and the adapter 211 are not located at the clamping portion 1241, and the exposed corner and the adjacent corner are far away from the center of the pressure-bearing pad 123, so that the polygonal locking piece 124 does not lock the pressure-bearing pad 123 and the adapter 211 in this pushing process.

The locking and unlocking processes of the self-locking rebounder 12 are completed by one cycle.

In other embodiments of the present application, an electromagnetic mechanical lock may also be used, and no matter which way is used, the volume of the self-locking rebounder 12 is controlled within 30mm, and effective locking can be realized. When the electromagnetic mechanical lock is adopted, a lock body structure with an inclined bolt structure can be arranged, the bolt is connected with an electromagnetic switch, the inclined bolt is extended or retracted by electrifying or disconnecting the electromagnetic switch, the inclined bolt is extended to be locked with the adaptation part 211, and the adaptation part 211 can be unlocked by retracting the inclined bolt.

In addition, as shown in fig. 1-5, the first frame component 1 of the present embodiment is a square frame structure, and decorative plugs 18 are disposed at two ends of a side edge of the frame, so as to improve the aesthetic property of the frame. The middle part of the frame is provided with a penetrating hole 15 within a certain range, the edges of two long sides of the frame and two short sides of the frame are provided with a plurality of fixing holes 16 and a plurality of hollow holes 17 which are used for being fixed with a wall, the fixing holes 16 are arranged to facilitate the effective fixation of the first support assembly 1, and the first support assembly 1 can effectively reduce the weight through the arrangement of the penetrating hole 15 and the hollow holes 17. Meanwhile, in order to make the first bracket assembly 1 have sufficient strength while effectively reducing weight, as shown in fig. 4, reinforcing ribs 4 are provided at the peripheral edges of the first bracket assembly 1 in the present embodiment, which effectively enhances the supporting strength of the first bracket assembly 1.

As shown in fig. 1, the second bracket assembly 2 of the present embodiment includes the following three main components: the first support frame 21, the second support frame 22 and the third support frame 23 are sequentially arranged along the direction far away from the first support frame assembly 1, and the adapting part 211 is arranged on the first support frame 21; one side of the first support frame 21 is connected to the first frame assembly 1, the other side of the first support frame 21 is connected to the second support frame 22, and the third support frame 23 is slidably mounted on the second support frame 22 in the first direction. Thereby forming a multi-layered tiled screen support structure.

The position of the display screen is used as the front side of the spliced screen support, the position of the first support component 1 is used as the rear side of the spliced screen support, the first direction refers to the direction from left to right or from right to left of the display screen or the spliced screen support, the second direction refers to the direction from top to bottom or from bottom to top of the display screen or the spliced screen support, and the attached figure 2 can be referred to in the overall azimuth relation of the display screen and the support.

The first support frame 21, the second support frame 22 and the third support frame 23 are all square frame structures, and the structures and the connection relationships of the first support frame 21, the second support frame 22 and the third support frame 23 will be described in detail below.

As shown in fig. 1-2, the first support frame 21 is connected to the first frame assembly 1 by the connection assembly 3, and as shown in fig. 6, the first support frame 21 forms a concave region in the middle of the side surface thereof close to the second support frame 22, and the concave region is used for accommodating the second support frame 22, so that the first support frame 21 and the second support frame 22 are fitted and fixed, and the thickness of the tiled screen support is further effectively reduced.

Specifically, two rotation shafts 213 extending in the first direction are provided on the first support frame 21, and the rotation shafts 213 are structured as shown in fig. 18; the left and right sides of the concave region can be respectively referred to as a first connection portion 214 and a second connection portion 215. A first side (which may be referred to as a right side in the orientation of fig. 2) of the second support frame 22 is connected to the first connection portion 214 of the first support frame 21 via one rotation shaft 213, and a second side (which may be referred to as a left side) of the second support frame 22 opposite to the first side is connected to the second connection portion 215 of the first support frame 21 via another rotation shaft 213, so that the second support frame 22 can be limited in the concave region of the first support frame 21. The four corners of the second support frame 22 may be provided with holes 5, and the screws 5 further connect to the first support frame 21.

The rotation shaft 213 can maintain the independence of the second support frame 22, and can bear the overall weight of the spliced screen support to effectively share the bearing, so that all the weight is prevented from being hung on the adjusting bolt connected with the adjusting module 24, and the problems of frame deformation and difficulty in adjusting the adjusting module 24 are effectively avoided.

Because in the setting of this application, the distance between first carriage 21 and the second carriage 22 can realize fine setting (millimeter level), consequently the position that corresponds rotation axis 213 on the second carriage 22 is provided with spacing groove 221, rotation axis 213 one end passes through screw 5 with first carriage 21 and fixes, rotation axis 213's the other end inserts spacing groove 221, rotation axis 213 can remove along the spacing groove relatively, and the direction of movement is along the fore-and-aft direction of concatenation screen support.

The second support frame 22 is substantially a movable middle frame whose distance from the first support frame 21 is adjustable. Specifically, the second support frame 22 is connected to the first support frame 21 through the adjustment module 24; the adjusting module 24 is located at a circumferential edge of the second support frame 22, and the adjusting module 24 is used for adjusting a distance between the second support frame 22 and the first support frame 21.

In the present embodiment, the adjusting modules 24 are disposed at four corners of the second supporting frame 22, so that the distance can be adjusted at the four corners, and an angle can be adjusted by independently adjusting any two corners. For example, when the two angle adjusting modules 24 above the second supporting frame 22 are adjusted independently, when the distance is increased, the two angles below the two angle adjusting modules are not adjusted, and the second supporting frame 22 forms a downward inclined angle. In the prior art, two adjusting pieces are usually arranged at the central axis of the second supporting frame 22 in the horizontal direction to perform single front-back adjustment, so that the support in the prior art has high requirement on the flatness of the wall surface, the wall surface is usually required to be specially treated, and the overall engineering is large, the time consumption is long and the cost is high; in the application, the pitching fine adjustment in the vertical direction can be realized by respectively adjusting the adjusting modules 24, the requirement on the flatness of the installation wall surface is low, and the wall surface does not need to be specially processed under most conditions.

The above mentioned adjusting module 24 can be adjusted by directly using an adjusting nut, but in order to achieve a more labor-saving effect in the adjusting process, the adjusting module 24 in this embodiment is configured as a gear structure. As shown in fig. 15, the adjusting module 24 includes a first gear 241 and a second gear 242 engaged with each other, and both gears are fixed in a fixing frame 244.

The first gear 241 is spirally connected with the second support frame 22 through an adjusting bolt penetrating through the first support frame 21, and the size of the second gear 242 is smaller than that of the first gear 241, so that the second gear 242 is rotated by a small force, the second gear 242 drives the first gear 241 to rotate, the first gear 241 rotates to drive the distance between the adjusting bolt and the first gear 241 to change, and therefore fine adjustment of the distance between the first support frame 21 and the second support frame 22 is achieved. The process of adjusting by the gear adjusting module 24 is simple, convenient, time-saving and labor-saving, and meanwhile, the adjusting precision can be improved.

For convenience of turning the second gear 242, as shown in fig. 15, the second gear 242 is provided with a hexagonal socket, so that the adjustment can be conveniently performed by using a hexagon socket wrench, and it is worth mentioning that the hexagon socket wrench is adjusted from the rear of the display screen. In other embodiments, the second gear 242 may be configured as a triangular hole or a splined hole.

In order to ensure that the position of the adjusting module 24 is stable in the process of turning the knob adjusting module 24, as shown in fig. 8, a position limiting portion 212 is disposed at a position of the first supporting frame 21 corresponding to the adjusting module 24, and the position limiting portion 212 is used for limiting and fixing the adjusting module 24. In this embodiment, the limiting portion 212 is set as a hook-shaped metal plate structure having a bending structure, four limiting portions 212 are arranged on the first supporting frame 21 corresponding to the number of the adjusting modules 24, and the bending structure of the limiting portions 212 can hang the lapping portion 2441 of the fixing frame 244 in the adjusting module 24, so that the adjusting modules 24 are effectively limited, the adjusting distance is limited, and the adjusting module 24 is prevented from being separated.

One side (front side) of the third support frame 23 is used for mounting the display screen and is fastened with the back of the display screen by an ultrathin screw; the other side (rear side) of the third support frame 23 is slidably connected to the first slide rail 222 of the second support frame 22 via a hook 231. Specifically, as shown in fig. 8, a first slide way 222 extending along a first direction is arranged on the second support frame 22, and a hook 231 is arranged on a side surface of the third support frame 23 facing the second support frame 22, and is hung on the first slide way 222 through the hook 231; and a middle frame gasket 233 is disposed at the middle portion of the third support block to provide a buffer for the contact between the second support frame 22 and the third support frame 23. In this embodiment, the first slide way 222 is provided with two upper hooks 231 and two lower hooks 231, respectively, at positions corresponding to the first slide way 222 on the upper side and the first slide way 222 on the lower side of the third support frame 23.

In this embodiment, the two hooks 231 located on the upper side of the third supporting frame 23 are set as adjustable hooks 2311 for adjusting the length of the third supporting frame 23 in the second direction, where the second direction is perpendicular to the first direction, and the second direction is the up-down direction of the spliced screen bracket in this embodiment.

The adjustable hook 2311 comprises a hanging area and an adjustable area which are connected in the second direction, and the length of the third supporting frame 23 in the second direction is adjusted by adjusting the area of the hanging area; the adjustable hook 2311 is used for adjusting the height of the third supporting frame 23 hung on the second supporting frame 22.

As shown in fig. 11, the adjustable hook 2311 provided in the present embodiment includes: a stopper piece 2312 and a positioning portion 2313 provided on the third support frame 23; the blocking piece 2312 is slidably connected with the positioning portion 2313, a hanging area is formed between one end of the blocking piece 2312 and the third supporting frame 23, and an adjustable area is defined by the other end of the blocking piece 2312, the positioning portion 2313 and the third supporting frame 23.

The adjustable area is provided with a first positioning pin 2314, a second positioning pin 2315 and a first adjusting pin 2316, the first positioning pin 2314 and the second positioning pin 2315 penetrate through the blocking piece 2312 and are abutted against the second supporting frame 22, and the first adjusting pin 2316 is located between the first positioning pin 2314 and the second positioning pin 2315; the first adjusting pin 2316 rotates to drive the first positioning pin 2314 and the second positioning pin 2315 to rotate, and the change of the adjustable area is realized, so that the area of the hanging area or the length in the second direction is adjusted, and the height of the third supporting frame 23 hung on the second supporting frame 22 is adjusted.

In other embodiments, the adjustable hook 2311 may also directly adopt a spiral adjustment manner, and the structure thereof may include a barrier vertically connected to the third support frame 23 and an adjusting bolt spirally connected to the barrier, a hook section with a certain angle (e.g., 90 °) is formed between the adjusting bolt and the barrier, the hook section formed by the adjusting bolt and the barrier is directly hung, and the area change of the hanging section is realized by the adjusting bolt with the upper and lower knobs, so as to adjust the height of the third support frame 23 hung on the second support frame 22.

In the prior art, in order to facilitate splicing, the size of a bottom frame of the spliced screen support is the same as that of a spliced screen to be installed, the spliced screen with one specification basically corresponds to the spliced screen support, the screen sizes of different manufacturers are different and need to be separately corresponding, the specifications are too many, and the production and stock costs are increased. The third support frame 23 in the embodiment of the present application is provided with a predetermined size, but is applicable to a plurality of sizes of the tiled screens.

In this embodiment, the third support frame 23 has a size smaller than 45 "of the tiled screen, but it can be adapted to 45" to 60 "of the display screen. As shown in fig. 10, a plurality of sets of fitting holes 232 are disposed on the third supporting frame 23, and the fitting holes 232 include five standard mounting holes 1331 with sizes of 600 × 400, 600 × 300, 600 × 200, 400 × 400, 400 × 200, and the like, so as to adapt to display screens with different sizes.

In order to realize that the whole thickness of the support is small, the third support frame 23 is also designed to be ultrathin, and meanwhile, in order to realize the arrangement of the adaptive hole 232, the avoidance hole 27 needs to be arranged on the structure below the adaptive plate, and the third support frame 23 is provided with a bending and reinforcing rib 4 structure so as to ensure that the third support frame 23 with a plurality of holes has qualified rigidity. In this embodiment, the third support frame 23 is made of a 3mm cold-rolled sheet, so as to reduce the weight of the punched hole, and the bending and the punching ribs are increased through strict design and simulation, thereby improving the rigidity of the third support frame 23.

In order to further improve the strength of the third supporting frame 23, in this embodiment, there are further provided: the second adjusting pin 26 is a bolt structure with an anti-loosening nut, which is riveted on the third support frame 23, one end of the bolt, which is far away from the anti-loosening nut, sequentially passes through the third support frame 23 and the second support frame 22 and is in threaded connection with the limiting gasket 25, and a gasket hole 223 corresponding to the limiting gasket 25 is arranged on the second support frame 22; the distance from the limit gasket 25 to the knob of the second adjusting pin 26 can be tightened by turning the second adjusting pin 26, so as to adjust the distance between the third supporting frame 23 and the second supporting frame 22 (the adjustment should be performed without affecting the adjustment of other aspects of the display screen). Through the limiting gasket 25, the third supporting frame 23 has the advantages of reducing weight, arranging a plurality of groups of adapting holes 232 and having qualified rigidity.

In summary, the structures of the first bracket assembly 1 and the second bracket assembly 2 are as follows:

the thicknesses of the first support frame component 1, the first support frame 21, the second support frame 22 and the third support frame 23 are strictly controlled, and in order to realize weight reduction, a plurality of opening structures are arranged on each frame; meanwhile, in order to ensure the strength and rigidity of the frame, a plurality of reinforcing rib 4 structures are arranged on each frame structure;

under the action of the adjusting module 24, the second supporting frame 22 drives the third supporting frame 23 and finally drives the display screen to realize fine adjustment back and forth; moreover, by only adjusting the two adjusting modules 24 positioned at the upper side or the lower side of the second supporting frame 22, fine adjustment of the pitch angle in the vertical direction or fine adjustment of rotation in the horizontal direction can be realized;

on the basis that the third supporting frame 23 is connected with the second supporting frame 22 in a sliding manner, the third supporting frame 23 can drive the display screen to slide left and right by pushing the display screen on the left side or the right side through external force.

The application does not specifically limit the connection assembly 3 between the first support frame 21 and the first support assembly 1, and a V-shaped folding arm, an X-shaped folding arm or a telescopic arm can be adopted. However, in order to realize the overall thickness control of the bracket and the stability during the folding process, the connecting component 3 in the embodiment is provided with an X-shaped arm.

Set up two sets of coupling assembling 3 between first carriage 21 and first support subassembly 1, two sets of coupling assembling 3 are located the left and right sides of first support subassembly 1 respectively, have enough spaces between two sets of coupling assembling 3, make things convenient for the process that the screen immigration of concatenation shifted out to make things convenient for maintenance, debugging, installation and so on of concatenation screen. Wherein, the concrete structure of coupling assembling 3 is as follows:

as shown in fig. 16, the connecting assembly 3 includes: the first support arm 31 and the second support arm 32 are made of aluminum and are connected with each other in a rotating mode, the center of the first support arm 31 is connected with the center of the second support arm 32 through a first connecting shaft 33 to form an X-shaped connecting arm, and an arm butt joint gasket 34 is further arranged on the first connecting shaft 33, so that damage to the connecting arm caused by friction is effectively prevented. When the second bracket assembly 2 is locked with the first bracket assembly 1, the first arm 31 and the second arm 32 are arranged side by side on the first bracket assembly 1. The two support arms are arranged in parallel, so that the thickness of the support cannot be wasted, and the effective adjustment of the support arms can be realized; different from the overlapping type crossing mode in the prior art (the four ends of the two arms are overlapped in pairs, and the thickness is large).

Wherein, one end of the first support arm 31 is connected with the first support component 1 in a sliding way, and the other end of the first support arm 31 is fixedly connected with the second support component 2; one end of the second arm 32 is fixedly connected to the first bracket assembly 1, and the other end of the second arm 32 is slidably connected to the second bracket assembly 2.

The two support arms of the connecting assembly 3 are arranged in parallel and have a certain distance therebetween, so that in the embodiment, a scheme that two ends of each support arm can only be fixed on one side or slide blocks are arranged on one side (the stress condition of the support arms is poor) in the prior art can be abandoned.

In order to realize uniform stress on the two support arms, in this embodiment, a first slide rail assembly 13 is disposed on the first support assembly 1 at a connection position corresponding to the first support arm 31, and the first slide rail assembly 13 includes a first side rail 131 and a second side rail 132; one end of the first arm 31 is provided with a slider shaft 311, one end of the slider shaft 311 is slidably connected to the first side rail 131, and the other end of the slider shaft 311 is slidably connected to the second side rail 132. The fixed end of the first arm 31 on the side of the first bracket component 1 is formed by fixing a double rail.

The first bracket assembly 1 is provided with a first fixed trunnion assembly 14 corresponding to the connection position of the second support arm 32, the first fixed trunnion assembly 14 includes a first fixed portion 141 and a second fixed portion 142, one end of the second support arm 32 is provided with a fixed shaft 312, one end of the fixed shaft 312 is connected with the first fixed portion 141, and the other end of the fixed shaft 312 is connected with the second fixed portion 142. The fixed end of the second arm 32 on the side of the first arm assembly 1 takes the form of a double-fixed-part fixing.

Correspondingly, a second fixed trunnion assembly is disposed at a connection position corresponding to the first support arm 31 on the second support assembly 2 (specifically, the first support frame 21), and the structure is referred to the first fixed trunnion assembly 14, which is not described herein again. The second bracket component 2 is provided with a second slide rail component corresponding to the connection position of the second support arm 32, the structure refers to the first slide rail component 13, the length setting of the side rail can be adjusted according to the actual situation, and the rest details are not repeated.

It can be seen from the above that each arm of the connecting assembly 3 adopts the structural form of double tracks and double fixing parts, one end of each arm can only rotate, the other end can only slide, the stress of each arm is very uniform, and the folding process is very smooth. After the fixed position of each arm is effectively provided with the arm with balanced stress, the aluminum alloy support arm can effectively reduce the weight, and the size can be small, so that the total thickness of the support is further reduced.

In addition, the side rails are reduced in thickness, which also affects the strength thereof. In order to enhance the strength of the side rail, the slide rail groove in the embodiment adopts a structure with one side open and the other side closed. Specifically, the slide groove 133 provided on the first side rail 131 is open on the side facing the slider shaft 311, and/or the slide groove 133 provided on the second side rail 132 is open on the side facing the slider shaft 311; the setting of closed side can effectively strengthen side rail intensity, avoids the side rail to warp. To facilitate mounting of the slider shaft 311, both ends of the slide groove 133 in the present embodiment are provided with mounting holes 1331. In addition, the arrangement of the side rails can also enhance the strength of the first bracket component to a certain extent and play a role of reinforcing ribs.

In summary, the spliced screen support provided by the embodiment of the invention has the following technical effects:

the overall thickness of the spliced screen support is not more than 30 mm;

the self-locking rebounder 12 can realize the locking function and effectively control the size, and is a key factor for realizing the total thickness of the spliced screen; the thickness of the bracket is effectively reduced by using the elastic steel sheet (the elastic piece 11) as a power source for pushing out the bracket;

the adjusting modules 24 are respectively arranged at the four corners of the square second supporting frame 22, so that the front and back fine adjustment of the display screen and the fine adjustment with the angle in the vertical direction or the horizontal direction can be finally realized;

the rotating shaft 213 for fixing the second supporting frame 22 and the first supporting frame 21 can effectively bear the load, so that the weight of the spliced screen is prevented from falling on the four adjusting modules 24, and the smooth adjustment of the adjusting modules 24 is ensured;

the sliding connection of the second support frame 22 and the third support frame 23 enables the third support frame to drive the display screen to slide along the first direction (the left and right sliding of the display screen) simply and conveniently, and the display screen is pushed on the left side or the right side of the bracket directly;

the third support frame 23 may be adapted to display screens of various sizes; and the limiting gasket 25 arranged on the third supporting frame 23 can realize that: the distance between the third supporting frame 23 and the second supporting frame 22 is adjusted, and the rigidity of the third supporting frame 23 is improved;

the connecting component 3 is arranged into a double-arm structure which can be arranged in parallel, the overall thickness of the support is effectively reduced, and the connecting component 3 is stable and reliable in operation and good in rigidity.

It is noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that an article or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such article or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of additional like elements in an article or device comprising the element.

In the description of the present invention, it should be understood that the terms "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, that is, the corresponding orientations when the air conditioner is normally installed. This is merely for convenience in describing the invention and to simplify the description and is not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation and is not to be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements or in a relationship wherein two elements interact with each other. Those skilled in the art can understand the specific meaning of the above terms in the present invention according to specific situations.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A self-locking rebounder, comprising: the locking device comprises a lock column (122), a pressure-bearing gasket (123) sleeved outside the lock column (122), a locking plate (124) positioned in an inner cavity of the lock column (122) and an elastic power assembly (125); the locking plate (124) is provided with a clamping part (1241), one end of the elastic power component (125) is connected with the lock cylinder (122), and the other end of the elastic power component (125) is contacted with the locking plate (124);

the pressure-bearing gasket (123) extrudes the locking plate (124) under the action of external pressure and triggers the elastic power assembly (125), and the elastic power assembly (125) pushes the locking plate (124) to rotate around a preset shaft, so that the clamping portion (1241) is exposed or retracted relative to the side wall of the lock column (122), and the pressure-bearing gasket (123) is locked or unlocked by the clamping portion (1241).

2. The self-locking rebounder of claim 1, further comprising: a base (121) and a first elastic part (127); the lock cylinder (122) is arranged on the base (121), and the pressure-bearing gasket (123) is connected with the base (121) through the first elastic part (127).

3. A front maintenance tiled screen mount, comprising a first mount assembly (1), a second mount assembly (2) and a self-locking rebounder (12) of any of claims 1-2;

the self-locking rebounder (12) is arranged on the first side face of the first support assembly (1), the second support assembly (2) is connected with the first side face of the first support assembly (1), and an adapting part (211) is arranged on the second support assembly (2); the self-locking rebounder (12) can lock or unlock the adapting part (211) so as to enable the second bracket component (2) to be fixed or move relative to the first bracket component (1).

4. A front maintenance splice screen carrier according to claim 3, wherein the second carrier assembly (2) comprises: the first support frame (21), the second support frame (22) and the third support frame (23) are sequentially arranged along the direction far away from the first support frame assembly (1), and the adapting part (211) is arranged on the first support frame (21);

one side of the first supporting frame (21) is connected with the first bracket assembly (1), the other side of the first supporting frame (21) is connected with the second supporting frame (22), and the third supporting frame (23) is slidably mounted on the second supporting frame (22) along the first direction.

5. The front maintenance splice screen support of claim 4, further comprising: an adjustment module (24); the second supporting frame (22) is connected with the first supporting frame (21) through the adjusting module (24); the adjusting module (24) is located at the circumferential edge of the second supporting frame (22) and used for adjusting the distance between the second supporting frame (22) and the first supporting frame (21).

6. A front maintenance splice screen holder according to claim 4 wherein the first support frame (21) is provided with a plurality of rotation shafts (213) extending in the first direction;

a first side of the second support frame (22) is connected to a first connection portion (214) of the first support frame (21) through one of the rotation shafts (213), and a second side of the second support frame (22) opposite to the first side of the second support frame (22) is connected to a second connection portion (215) of the first support frame (21) through the other rotation shaft (213); and a limit groove (221) is formed in the second support frame (22), the limit groove (221) and the rotating shaft (213) are correspondingly arranged, and the rotating shaft (213) can move relative to the limit groove (221).

7. Front maintenance splice screen support according to claim 4, characterized in that the second support frame (22) is provided with a first slide (222) extending along a first direction, the side of the third support frame (23) facing the second support frame (22) is provided with a hook (231), the hook (231) is hung on the first slide (222), the hook is used for adjusting the length of the third support frame (23) in a second direction, wherein the first direction is perpendicular to the second direction.

8. The front maintenance splice screen support of claim 3, further comprising: one end of the elastic piece (11) is connected with the first side face of the first bracket component (1), and the other end of the elastic piece (11) is a free end; the second bracket component (2) moves relative to the first bracket component (1) under the elastic action of the elastic component (11).

9. Front maintenance splice screen bracket according to claim 3, characterized in that the second bracket assembly (2) is connected to the first bracket assembly (1) by a connecting assembly (3), the connecting assembly (3) comprising a first arm (31) and a second arm (32) rotatably connected to each other;

one end of the first support arm (31) is connected with the first support assembly (1) in a sliding mode, and the other end of the first support arm (31) is fixedly connected with the second support assembly (2); one end of the second support arm (32) is fixedly connected with the first support assembly (1), and the other end of the second support arm (32) is connected with the second support assembly (2) in a sliding manner; under second bracket component (2) with first bracket component (1) locking state, first support arm (31) with second support arm (32) set up side by side.

10. The front maintenance splicing screen bracket according to claim 3, wherein a slot is arranged at the position of the first bracket component (1) corresponding to the self-locking rebounder (12), and the self-locking rebounder (12) is embedded in the slot.