CN211016318U - Screen installation flattening instrument and screen installation flattening subassembly - Google Patents

Abstract

The embodiment of the utility model relates to screen installation flattening instrument and screen installation flattening subassembly, the screen is by the fixed formation of at least two L ED box concatenations, screen installation flattening instrument includes flattening base plate, handle and two at least drag hooks, the handle is fixed set up in flattening base plate both sides, the flattening base plate includes first face, first face is the plane, two at least second through-holes have been seted up to the flattening base plate, the drag hook includes fixed connection's hook portion and draws the portion, works as when screen installation flattening instrument is in operating condition, the flattening base plate is located two adjacent L ED box tops and first face orientation L ED box one side, draw the portion can wear to locate with moving about from top to bottom the second through-hole, the drag hook can draw the top surface that the ED L box went up and made L ED box with first face butt makes locating pin and locating pin hole, hasp and locking buckle position reciprocal anchorage position fine setting, eliminates the height of the screen body that accumulative mechanical tolerance caused.

Description

Screen installation flattening instrument and screen installation flattening subassembly

Technical Field

The utility model relates to an electronic display equipment production technical field especially relates to a screen installation flattening instrument and screen installation flattening subassembly.

Background

L ED display screen among the prior art is formed by two or more L ED display box through the concatenation, single L ED box includes the bottom plate and is fixed in the lateral wall at bottom plate edge, L ED box inside still can be provided with a plurality of strengthening ribs, L ED display screen's concatenation is for setting up locating pin and hasp in the lateral wall outside of single L ED box in the conventional design, the contact surface of adjacent L ED box corresponds the locating pin position and has seted up the locating pin hole, it detains the position to correspond the hasp position, mutually support through locating pin and locating pin hole, hasp and hasp knot position between a plurality of L ED boxes realizes the concatenation fixed, but this kind of concatenation fixed mode because the size of locating pin and locating pin hole, relative position and public mother butt joint match can have certain tolerance, in addition the position setting of hasp and hasp knot position also can have certain deviation of hasp, simultaneously in the hasp and knot position locking process, because the atress is unbalanced, also can lead to the dislocation between the box, because the level accumulation of above-mentioned tolerance can lead to the concatenation to the box after the locking, the box and fix the concatenation of box and the influence of the height difference that the locating pin can appear, L display screen that the use is low.

SUMMERY OF THE UTILITY MODEL

Based on this, the utility model aims at providing a screen mounting flattening instrument to the height drop appears in L ED box concatenation fixed back screen horizontal plane among the solution prior art, influences the technical problem who uses.

A screen installation leveling tool is characterized in that a screen is formed by splicing and fixing at least two L ED boxes and comprises a leveling base plate, a handle and at least two drag hooks, the handle is fixedly arranged on two sides of the leveling base plate, the leveling base plate comprises a first surface, the first surface is a plane, at least two second through holes are formed in the leveling base plate, the drag hooks comprise fixedly connected hook portions and pulling portions, when the screen installation leveling tool is in a working state, the leveling base plate is located above two adjacent L ED boxes, the first surface faces one side of the L ED box, the pulling portions can penetrate through the second through holes in a vertically movable mode, and the drag hooks can pull the L ED boxes to move upwards and enable the top surfaces of the L ED boxes to abut against the first surfaces.

The embodiment of the utility model provides a screen installation flattening instrument, its setting through flattening base plate and drag hook works as when screen installation flattening instrument is in operating condition, the flattening base plate is located L ED box top and its first face orientation L ED box one side, through right vertical ascending effort is applyed to the drag hook, draws L ED box rebound, and with the first face butt of flattening base plate L ED box through with splice both sides all upwards draw to with the first face butt of flattening base plate eliminates the height difference between the adjacent L ED box, makes locating pin and location pinhole, hasp and the position of locking knot position reciprocal anchorage finely tune, and then reaches the technical purpose of eliminating L ED screen height difference that cumulative mechanical tolerance caused, guarantees the roughness of screen, combines the setting of handle, is convenient for fix the flattening base plate, improves the stability of drawing the operation, screen installation flattening instrument simple structure, easy and simple to handle.

The width of the second through hole is larger than that of the pulling part, a first groove is formed in one side, away from each other, of the inner wall of each pair of the second through holes, the elastic part is arranged in the first groove, the direction of elastic acting force of the elastic part is perpendicular to the direction of forming the second through hole, the width of the second through hole is larger than that of the pulling part, the hook part is ensured to penetrate through the first through hole by the aid of the elastic acting force of the elastic part in combination with the arrangement of the first groove and the elastic part, the hook part is prevented from slipping from an L ED box body accidentally, the stability of pulling operation of the L ED box body is improved, meanwhile, acting force for compressing the elastic part can be exerted by pulling the second pressing rod, the hook part is made to easily slip from the L ED box body, and operation is further simplified.

The first compression rod comprises at least two first compression rod bodies; the leveling base plate further comprises a second face, and the hinged support is fixed on the second face; the end part of one end of the first pressure lever body is hinged with the drawing part, and the middle part of the first pressure lever body is hinged with the hinged support. The pull hook is applied with upward acting force by the arrangement of the first pressure lever and the hinged support and the lever principle, so that the operation is more labor-saving.

The L ED box body is characterized by further comprising a second pressure lever, wherein the second pressure lever comprises at least two second pressure lever bodies, one end of each second pressure lever body is fixedly connected with the end part of the pulling part, acting force towards the mutual approaching direction is applied to each pair of second pressure lever bodies, further acting force for compressing the elastic piece is applied to the elastic piece through the pulling part, and the hook part is more convenient to contact and separate from the L ED box body by matching with the first pressure lever.

Furthermore, the second pressing rod body comprises a fixing section and a force application section which are fixedly connected, the fixing section is fixedly connected with the pulling part, and the force application section of each pair of second pressing rod bodies is bent towards the direction away from each other and forms an obtuse angle with the fixing section. Through second depression bar body sets up, has effectively prolonged the power arm, makes the operation of deviating from of drag hook is more laborsaving, and the setting of shape when having guaranteed the unhook operation in the extension power arm moment of action, has avoided concatenation department both sides second depression bar application of force section to take place collision each other, and then the problem of influence operation.

Furthermore, at least four second through holes are formed in the leveling substrate, and the number of the draw hooks is at least 4 correspondingly; the first compression bar further comprises a first connecting part, and two ends of the first connecting part are fixedly connected with one end of each of two adjacent first compression bar bodies respectively; the second compression bar also comprises a second connecting part, and two ends of the second connecting part are respectively fixedly connected with one end of each of the two adjacent second compression bar bodies; the handle is of a U-shaped structure, and two ends of the handle are fixedly connected with two sides of the leveling substrate respectively. The shape of the first pressure lever and the second pressure lever is set, so that the two draw hooks can be controlled by one-time pressing or pulling operation, and the operation is further simple and convenient. The handle is U-shaped structure, its both ends respectively with the both sides fixed connection of flattening base plate, the user of being convenient for holds.

Further, the flattening base plate is the metal sheet, and metal material structural strength is high, can realize higher surface smoothness through machining, helps improving the accuracy of flattening operation.

In addition, the embodiment of the utility model provides a screen installation flattening subassembly still provides, it includes the screen and above screen installation flattening instrument, the screen is formed by the concatenation of a plurality of L ED box, L ED box includes the bottom plate and fixed frame construction who sets up on the bottom plate, be provided with on the frame construction of every L ED box with hook portion matched with draw the effect structure, the flattening base plate is located L ED box top and first face orientation L ED box one side, draw the portion can wear to locate with moving about from top to bottom the second through-hole, hook portion with draw the effect structure and contact.

The drawing action structure is matched with the hook part of the draw hook, so that the draw hook can conveniently draw the L ED box body.

Furthermore, the second through holes are symmetrically located on two sides of the splicing position of two adjacent L ED boxes, the transverse center line of the orthographic projection of the second through holes and the transverse center line of the orthographic projection of the pulling action structure are located on the same vertical plane, and the arrangement can help the hook portion to be stably contacted with the pulling action structure, so that more stable pulling on the L ED boxes is realized.

The embodiment of the utility model provides a screen installation flattening tool, when it is in operating condition, the flattening base plate is located L ED box top and first face is towards L ED box one side, hook portion with L ED box contact, draw portion can wear to locate in the second through-hole with upper and lower activity, through exerting vertical ascending effort to the drag hook, draw L ED box up-shift, and with the first face butt of flattening base plate, through drawing L ED box both sides of concatenation department upwards to the first face butt with the flattening base plate, eliminate the height drop of lateral wall, make the position of fixing pin and location pinhole, hasp and locking buckle position reciprocal anchorage finely tune, and then reach the technical purpose of eliminating L screen height drop that accumulated mechanical tolerance caused, in addition, still through the setting of first depression bar and articulated support, utilize lever principle, reduced the required intensity of labour of flattening operation, furtherly, still through the setting of first recess and elastic component, utilize its elastic effort to ensure the contact with draw the effect of hook portion, the simple and convenient operation of drawing the structure to improve the screen installation from the high compression and operation stability, the high efficiency of drawing the easy to install the screen component, the high efficiency of drawing the easy to the operation is good, the high efficiency of drawing the easy to install the screen is reached, the simple and easy to the installation operation, the high efficiency of drawing the operating efficiency is good, the high efficiency is good, the screen is good, the high efficiency is good, the simple and the easy to the installation of drawing operation of drawing device, the screen is good, the high efficiency is good, the screen is good, the.

For a better understanding and an implementation, the present invention is described in detail below with reference to the accompanying drawings.

Drawings

FIG. 1 is a schematic diagram of a single L ED box structure in the prior art;

FIG. 2 is a schematic diagram of a splicing position of a plurality of L ED boxes in the prior art;

fig. 3 is a schematic view of the operation of the leveling tool for mounting a screen according to embodiment 1 of the present invention;

fig. 4 is a schematic view of the operation of the screen installation leveling assembly according to embodiment 2 of the present invention;

fig. 5 is a schematic view illustrating the unhooking operation of the screen installation leveling assembly according to embodiment 2 of the present invention;

fig. 6 is a schematic view of the operation of the screen installation leveling assembly according to embodiment 3 of the present invention;

fig. 7 is a top view of the screen installation and leveling assembly according to embodiment 4 of the present invention.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1 and 2, fig. 1 is a schematic structural view of a single L ED box in the prior art, and fig. 2 is a schematic structural view of a spliced portion of a plurality of L ED boxes in the prior art, as shown in the figure, a L ED box 10 in the prior art forms a L ED display screen by splicing and combining, the L ED box 10 is a rectangular structure and includes a box bottom plate 12 and a frame structure fixed to the bottom plate 12 in a protruding manner, the frame structure includes box side walls 14 vertically fixed to the periphery of the box bottom plate 12 and internal reinforcing ribs 16 fixed to the box bottom plate 12, the internal reinforcing ribs 16 include first internal reinforcing ribs 162 and second internal reinforcing ribs 164, the first reinforcing ribs are arranged along the length direction and the width direction of the L ED box 10, the first internal reinforcing ribs 162 are perpendicular to the plane of the box bottom plate 12, and both ends of the first internal reinforcing ribs are fixedly connected to the box side walls 14, respectively, and the second internal reinforcing ribs 164 are arranged along the diagonal direction of the box frame and perpendicular to the plane of the box bottom plate 12, and one end of the second internal reinforcing ribs 162.

Example 1

The embodiment of the utility model provides a screen mounting flattening tool, please refer to fig. 3, fig. 3 is the utility model discloses embodiment 1 screen mounting flattening tool working schematic diagram, as shown in the figure, screen mounting flattening tool includes flattening base plate 20, handle 26 and two at least drag hooks 30, flattening base plate 20 includes first face and second face, wherein first face is the plane, at least two second through-holes 22 have been seted up on flattening base plate 20, second through-holes 22 are for setting up in pairs, drag hooks 30 include fixed connection's hook portion 32 and draw portion 34, work as screen mounting flattening tool is in operating condition, flattening base plate 20 is located L ED box 10 top and first face orientation L ED box one side, hook portion 32 can draw L ED box 10 and move up and make the top surface of L ED box 10 with first face butt.

When the flat base plate is used, the flat base plate 20 is horizontally placed above the joint of two adjacent L ED boxes 10, the second through holes 22 are respectively positioned at two sides of the joint of two adjacent L ED boxes 10, then, a vertical upward acting force is applied to the draw hook 30, the L ED boxes are drawn to move upwards, and the top of the side wall 14 of the L ED box is abutted to the first surface of the flat base plate 20.

The embodiment of the utility model provides a screen installation flattening instrument, its setting through flattening base plate and drag hook works as when screen installation flattening instrument is in operating condition, the flattening base plate is located L ED box top and its first face orientation L ED box one side, through right vertical ascending effort is applyed to the drag hook, draws L ED box rebound, and with the first face butt of flattening base plate L ED box through with splice both sides all upwards draw to with the first face butt of flattening base plate eliminates the height difference between the adjacent L ED box, makes locating pin and location pinhole, hasp and the position of locking knot position reciprocal anchorage finely tune, and then reaches the technical purpose of eliminating L ED screen height difference that cumulative mechanical tolerance caused, guarantees the roughness of screen, combines the setting of handle, is convenient for fix the flattening base plate, improves the stability of drawing the operation, screen installation flattening instrument simple structure, easy and simple to handle.

Example 2

Please refer to fig. 4, fig. 4 is a schematic diagram of a screen installation leveling assembly according to embodiment 2 of the present invention, which further provides a screen installation leveling assembly, wherein the L ED screen is formed by splicing a plurality of L ED boxes 10, the screen installation leveling assembly includes a plurality of L ED boxes and the screen installation leveling tool described above, the screen installation leveling tool includes a leveling substrate 20, at least two hooks 30, a first pressing rod 40 and at least two hinged supports 24, at least two second through holes 22 are provided on the leveling substrate 20, the second through holes 22 are provided in pairs, as a preferred embodiment, the number of the second through holes 22 is 2 in this embodiment.

The draw hook 30 comprises a hook part 32 and a drawing part 34 which are fixedly connected, the hook part 32 can draw L ED box 10 to move up and down, and the drawing part 34 can be movably arranged in the second through hole 22 up and down, as an optional embodiment, in order to facilitate the draw hook 30 to draw L ED box, a drawing action structure matched with the draw hook 30 is arranged on a frame structure of the L ED box, the drawing action structure is a through hole, a groove or a bulge on the frame structure, in the embodiment of the invention, a first through hole 18 is arranged on the frame structure of the L ED box 10, in other embodiments, a groove or a bulge formed on the surface of the frame structure is also arranged on the frame structure, as an optional embodiment, the first through hole 18 is arranged at the same position on the side wall 14 of the L ED box 10, as the position 182 in the figure, in other embodiments, the first through hole 18 is also arranged at the same position on the internal reinforcing rib 16 of the L ED box 10, as the position of the side wall 184 in the figure, or the internal reinforcing rib 14 and as the leveling position of the first through hole 18, the through hole 18 is also can be arranged at a width larger than the width of the drawing action structure, and the drawing action structure is preferably larger than the width of the first through hole 32 or the drawing action structure 34 in the drawing action process.

The first pressing rod 40 includes at least two first pressing rod bodies 42, the number of the hinged supports 24 corresponds to the number of the first pressing rod bodies 42, in this embodiment, the number of the hinged supports 24 and the first pressing rod bodies 42 corresponds to the number of the second through holes 22 is 2, and the hinged supports 42 are fixedly disposed on the second surface of the leveling substrate 20 and are disposed adjacent to the second through holes 22. The end part of one end of the first pressure lever body 42 is hinged with the drawing part 34, the middle part of the first pressure lever body 42 is hinged with the hinged support 24, and the first pressure lever 40 is arranged and applies upward acting force to the draw hook 30 by using the lever principle, so that the operation is more labor-saving. In a preferred embodiment, the hinged support 24 is disposed on the side of each pair of second through holes 22 away from each other to avoid the first pressure lever body 42 of each pair colliding with each other during the pressing operation, and the hinge joint of the first pressure lever body 42 and the hinged support 24 is located near the end where the pull portion 34 is hinged, which helps to increase the power arm of the first pressure lever 40, so that the pressing operation is more labor-saving.

In a preferred embodiment, the screen mount leveling tool further includes at least two handles fixedly disposed at the edges of the leveling substrate 20. Through the cooperation of the handle 26 and the first pressure lever body 42, the operation stability of pressing down the first pressure lever body 42 is higher, and the operation is more convenient and labor-saving.

As a preferred embodiment, a first groove 27 is formed on a side of each pair of inner walls of the second through holes 22 away from each other, an elastic member 28 is disposed in the first groove 27, a direction of an elastic force of the elastic member 28 is perpendicular to an opening direction of the second through holes 22, in this embodiment, the elastic member 28 is a spring, a center axis thereof is perpendicular to the opening direction of the second through holes 22, and in other embodiments, the elastic member 28 may have other elastic structures.

As an alternative embodiment, the leveling substrate 20 is a metal plate, the metal material has high structural strength, and the first surface can achieve high surface flatness through machining, which helps to improve the accuracy of the leveling operation.

The leveling base plate 20 is placed above the L ED box 10, the first face faces one side of the L ED box 10, the second through holes 22 are respectively located on two sides of the splicing position of the two adjacent L ED boxes 10, the pulling portion 34 can penetrate through the second through holes 22 in an up-and-down movable mode, as an optional implementation mode, the second through holes 22 are symmetrically located on two sides of the splicing position of the two adjacent L ED boxes 10, the transverse center line of the orthographic projection of the second through holes 22 and the transverse center line of the orthographic projection of the first through holes 18 are located on the same vertical plane, the operation can help the hook portions to stably penetrate through the first through holes, stable pulling on the L ED boxes is achieved, then vertical upward acting force is applied to the pulling hook, the L ED boxes are pulled upwards, the top of the side wall of the 67ED 63 box is abutted to the first face of the leveling base plate, the leveling operation is completed, upward acting force is applied to the pulling hook 30, the hook portion 32 drives the L ED boxes 10 to upwards move, and the tops of the two adjacent ED frames are abutted.

Example 3

Referring to fig. 6, fig. 6 is a schematic structural diagram of a screen installation leveling assembly according to embodiment 3 of the present invention. As shown in the figure, the embodiment of the utility model provides a screen mounting flattening instrument, it differs with embodiment 2 screen mounting flattening instrument and lies in: the second pressing rod 50 further comprises at least two second pressing rod bodies 52, the second pressing rod bodies 52 are fixedly connected with the drawing portion 34, and by drawing the second pressing rod bodies 52, acting force towards the mutual approaching direction is applied to each pair of second pressing rod bodies 52, and further acting force for compressing the elastic piece 28 is applied to the elastic piece 28 through the drawing portion 34, so that the hook portion 32 is separated from the first through hole 18. The second pressing rod 50 is matched with the first pressing rod 40, so that the hook part 32 can be conveniently inserted into and pulled out of the first through hole 18.

As a preferred embodiment, the second plunger body 52 includes a fixed section 522 and a force application section 524, the fixed section 522 is fixedly connected to the pulling portion 34, and the force application section 524 of each pair of second plunger bodies 52 is bent toward a side away from each other and forms an obtuse angle with the fixed section 522. Through the setting of second depression bar body 52, effectively prolonged the power arm, made the operation of deviating from of drag hook 30 more laborsaving, and the setting of its shape has guaranteed moment of action when the unhook operation in the time of extension power arm, has avoided concatenation department both sides second depression bar body 52 application of force section 524 to take place the collision each other, and then the phenomenon of influence operation.

Example 4

Referring to fig. 7, fig. 7 is a plan view of a screen mount leveling assembly according to embodiment 4 of the present invention, as shown in the drawings, the screen mount leveling tool according to the embodiment of the present invention is different from the screen mount leveling tool according to embodiment 3 in that at least 4 second through holes 22 are formed in the leveling substrate 20, the first pressing rod further includes a first connecting portion 44, two ends of the first connecting portion 44 are respectively and fixedly connected to one ends of two adjacent first pressing rod bodies 42, the second pressing rod 50 further includes a second connecting portion 54, two ends of the second connecting portion 54 are respectively and fixedly connected to one ends of two adjacent second pressing rod bodies 52, the first pressing rod and the second pressing rod are shaped to allow the pulling of two pulling hooks to be realized by one pressing operation, the leveling operation of four L ED boxes at the joint can be completed, the operation is further simple and convenient, the handle is U-shaped, two ends of the handle are respectively and fixedly connected to the leveling substrate 20, so that a user can hold the leveling substrate 20 is circular in shape, the case can cover L ED boxes at the adjacent metal boxes, and save the dead weight of the metal material.

The embodiment of the utility model provides a screen installation flattening tool, it sets up on the corresponding position of the frame construction of two adjacent or more than L ED box concatenation department and draws the effect structure with the drag hook is mutually supported, when screen installation flattening tool is in operating condition, the flattening base plate is located L ED box top and first face orientation L ED box one side, hook portion can draw L ED box and reciprocate, draw portion can wear to locate in the second through-hole with upper and lower activity, through to the vertical ascending effort of drag hook portion application, draw L ED box up shift, and with the first face butt of flattening base plate, through drawing L ED box of concatenation department both sides upwards draw with the first face butt of flattening base plate, eliminate L ED box frame construction's height, make locating pin and location pinhole, the hasp position of locking position reciprocal anchorage go on carry out the fine setting, and make the technical purpose of L high low height ED that the elimination accumulated mechanical tolerance caused, in addition, still set up through the first lever and the handle, the simple and easy to use the high elastic compression bar to draw the frame construction to improve the screen installation efficiency of the stability, the simple and the operation stability of the simple and the operation handle, the installation of the leveling, the simple high stability of the leveling pole, the frame, the stability of drawing the leveling, the stability of the cabinet, the simple high stability of the installation flattening tool, the easy to the stability of installing of the easy to the operation that the screen installation flattening frame, the leveling pole, the easy high stability of the leveling pole, the easy to use of the easy to improve the easy to the stability of the easy to use of the installation flattening frame, the easy to install the easy to the stability of installing of the easy to the operation that the smooth installation of the operation of the easy to install the easy to improve the stability of the operation of the smooth operation of the easy to the smooth operation.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.

Claims (10)

1. A screen installation leveling tool is characterized by comprising a leveling base plate, handles and at least two drag hooks, wherein the handles are fixedly arranged on two sides of the leveling base plate, the leveling base plate comprises a first surface, the first surface is a plane, the leveling base plate is provided with at least two second through holes, the drag hooks comprise fixedly connected hook portions and pulling portions, when the screen installation leveling tool is in a working state, the leveling base plate is located above two adjacent L ED box bodies, the first surface faces one side of a L ED box body, the pulling portions can penetrate through the second through holes in a vertically movable mode, and the drag hooks can pull the L ED box body to enable the top surface of a L ED box body to abut against the first surface.

2. The screen mounting flattening tool of claim 1, wherein: the device also comprises an elastic piece; the width of the second through hole is larger than that of the pulling part, a first groove is formed in one side, away from each other, of the inner wall of each pair of second through holes, the elastic piece is arranged in the first groove, and the direction of the elastic acting force of the elastic piece is perpendicular to the direction of the second through holes.

3. The screen mounting flattening tool of claim 2, wherein: the first compression bar comprises at least two first compression bar bodies; the leveling base plate further comprises a second face, and the hinged support is fixed on the second face; the end part of one end of the first pressure lever body is hinged with the drawing part, and the middle part of the first pressure lever body is hinged with the hinged support.

4. The screen mounting flattening tool of claim 3, wherein: the second pressure lever comprises at least two second pressure lever bodies; one end of the second pressure lever body is fixedly connected with the end part of the pulling part.

5. The screen mounting flattening tool of claim 4, wherein: the second compression bar body comprises a fixed section and a force application section which are fixedly connected, the fixed section is fixedly connected with the pulling part, and the force application section of each pair of second compression bar bodies bends towards the direction away from each other and forms an obtuse angle with the fixed section.

6. The screen mounting flattening tool of claim 4, wherein: at least four second through holes are formed in the leveling substrate, and the number of the draw hooks is at least 4 correspondingly; the first compression bar further comprises a first connecting part, and two ends of the first connecting part are fixedly connected with one end of each of two adjacent first compression bar bodies respectively; the second compression bar also comprises a second connecting part, and two ends of the second connecting part are respectively fixedly connected with one end of each of the two adjacent second compression bar bodies; the handle is of a U-shaped structure, and two ends of the handle are fixedly connected with two sides of the leveling substrate respectively.

7. The screen mounting flattening tool of claim 4, wherein: the leveling substrate is a metal plate.

8. A screen installation leveling assembly is characterized by comprising a screen and the screen installation leveling tool according to any one of claims 1 to 7, wherein the screen is formed by splicing a plurality of L ED boxes, the L ED box comprises a bottom plate and a frame structure fixedly arranged on the bottom plate, a pulling action structure matched with the hook part is arranged on the frame structure of each L ED box, the leveling base plate is positioned above the L ED box, the first surface faces one side of the L ED box, the pulling part can be movably arranged in the second through hole in an up-and-down mode, and the hook part is in contact with the pulling action structure.

9. The screen mounting flattening assembly of claim 8, wherein: the drawing action structure is a through hole, a groove or a bulge on the frame structure.

10. The screen mounting leveling assembly of claim 8, wherein the second through holes are symmetrically located on two sides of a splicing position of two adjacent L ED boxes, and a transverse center line of an orthographic projection of the second through holes and a transverse center line of an orthographic projection of the pulling action structure are located on the same vertical plane.

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