Adjustable ultra-large screen

Abstract

The utility model relates to the technical field of panoramic display screens, in particular to an adjustable ultra-large screen, which is characterized in that one end of a first connecting rod is provided with a first clamping groove, and the other end of the first connecting rod is integrally provided with a first clamping block; the first clamping blocks of the first connecting rods are embedded in the first clamping grooves of the adjacent first connecting rods. The sliding blocks are fixed to the front side walls of the first connecting rods above correspondingly. The sliding strips are respectively clamped in the sliding blocks in a sliding manner; the sliding strips are fixed to the back of the screen body in pairs. The second connecting mechanisms are arranged in the first connecting mechanisms correspondingly. The second connecting mechanisms and the connecting shafts are arranged in a one-to-one correspondence mode. The first adjusting mechanism is connected with the first connecting mechanisms on the left side and the middle. The second adjusting mechanism is connected with the second connecting mechanisms on the right side and in the middle. A plurality of screen bodies can be arranged in a matrix to form a large screen, so that the practicability is improved; and the large angles of the left and right large screens can be adjusted, so that the display screen can be opened in cooperation with a venue, and immersive viewing is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to panoramic display screen technical field, concretely relates to a regulation formula super large screen. BACKGROUND

[0002] When exhibiting in the exhibition hall, need to use super large screen, and the area of different exhibition hall planning gives different exhibition position is not same, whole piece big screen not only is not easy to adjust, also is not easy to transport, and according to the need of immersive, several big screens need to adjust the angle, not necessarily right angle, for this, present a kind of regulation formula super large screen. UTILITY MODEL CONTENTS

[0003] The utility model discloses to the defects and insufficiency of prior art, provide a regulation formula super large screen, can several screen body matrix arrangement combination into a big screen, improve practicality, can adjust the angle of left and right two big screens, make the display screen can cooperate with the venue and open, facilitate immersive viewing.

[0004] To achieve the above object, the utility model adopts the following technical scheme: it contains three big screens, three big screens are arranged left and right, and the left and right big screens are arranged from front to back by outside to inside, three big screens all contain several screen bodies, and the several screen bodies are arranged in matrix parts,

[0005] It also contains:

[0006] A connecting mechanism, the number of the first connecting mechanism is three, and is arranged on the back of the big screen respectively, the first connecting mechanism contains:

[0007] A connecting rod, the number of the first connecting rod is several, and is arranged on the back of the screen body respectively, one end of the first connecting rod is provided with a first clamping groove, and the other end of the first connecting rod is integrally formed with a first clamping block, the first clamping block of the first connecting rod is embedded in the first clamping groove of the adjacent first connecting rod, and is fixed, and the lowermost several first connecting rods are provided with several ground mounting holes,

[0008] Connecting shaft, the number of the connecting shaft is several, and is respectively connected on the lowermost first connecting rod through the shaft,

[0009] A bevel gear, the number of the first bevel gear is several, and is respectively fixed on the connecting shaft,

[0010] Second bevel gear, the number of the second bevel gear is several, and is respectively arranged with the first bevel gear, and the second bevel gear is connected with the rear side of the lowermost first connecting rod through the shaft and the bearing,

[0011] A plurality of sliders are fixed on the front side walls of the upper first connecting rods respectively;

[0012] A plurality of sliding strips are slidingly arranged in the sliders respectively and are fixed on the back of the screen body respectively;

[0013] A plurality of first fixing bolts are arranged in the sliders and the sliding strips respectively through screwing;

[0014] A plurality of second connecting mechanisms are arranged in the first connecting mechanisms respectively, and the second connecting mechanisms are arranged corresponding to the connecting shafts respectively;

[0015] A plurality of first adjusting mechanisms are connected with the left and middle first connecting mechanisms respectively;

[0016] A plurality of second adjusting mechanisms are connected with the right and middle second connecting mechanisms respectively.

[0017] Preferably, the hand screw is fixed with the second bevel gear, and a plurality of anti-skid grooves are arranged on the hand screw.

[0018] Preferably, the second connecting mechanism comprises:

[0019] A plurality of first screw rods are arranged in the upper first connecting rods through screwing, the lower end of the first screw rod is integrally formed with a second screw rod, the upper first screw rod is screwed on the upper end of the lower first screw rod through the second screw rod, the lowermost first screw rod is screwed in the connecting shaft through the second screw rod;

[0020] A plurality of second connecting rods are fixed on the lowermost first connecting rods respectively;

[0021] A plurality of limiting rods are arranged in the second connecting rods through screwing, the lower end of the limiting rod is integrally formed with a third screw rod, the upper limiting rod is screwed on the upper end of the lower limiting rod through the third screw rod, and the lowermost limiting rod is screwed in the second connecting rod through the third screw rod.

[0022] Preferably, two scale mark layers are arranged on the limiting rod, and the upper and lower scale mark layers are arranged on the opposite first connecting rods.

[0023] Preferably, the first adjusting mechanism comprises:

[0024] The right end of the first fixed block is provided with a second clamping groove, and the first clamping block of the leftmost first connecting rod of the middle first connecting mechanism is embedded in the second clamping groove and fixed.

[0025] The first adjusting block is embedded at the right end of the first fixing block;

[0026] The first fixed shaft is screwed between the first fixed block and the first adjusting block by means of a shaft and a bearing;

[0027] The first fixing nut is threadedly fitted onto the first fixing shaft and abuts against the first fixing block;

[0028] The first insertion block is movably inserted into the first adjustment block;

[0029] The No. 2 fixing bolt passes through the No. 1 adjusting block by threading, and its inner end abuts against the No. 1 insert block.

[0030] The first connecting block is integrally formed with the left end of the first insert block. The left end of the first connecting block is integrally formed with the second locking block. The second locking block is engaged with the first locking groove on the rightmost first connecting rod in the first connecting mechanism on the left side and is fixed.

[0031] Preferably, each of the second adjustment mechanisms comprises:

[0032] The second fixing block has a third slot at its right end. The third slot is engaged with the first locking block on the leftmost connecting rod of the first connecting mechanism on the right side and is fixed in place.

[0033] The second adjusting block is embedded at the right end of the second fixing block;

[0034] The second fixed shaft is screwed between the second fixed block and the second adjusting block via a bearing;

[0035] The second fixing nut is threadedly fitted onto the second fixing shaft and abuts against the second fixing block.

[0036] The second insertion block is movably inserted into the second adjustment block;

[0037] The No. 3 fixing bolt passes through the No. 2 adjusting block by threading, and its inner end abuts against the No. 2 insert block.

[0038] The second connecting block and the second insert block are integrally formed on the left end. The left end of the second connecting block is integrally formed with a third locking block. The third locking block is embedded in the first slot of the rightmost first connecting rod on the first connecting mechanism in the middle and is fixed.

[0039] Compared with the prior art, the beneficial effects of this utility model are:

[0040] 1. It is equipped with a No. 1 connecting mechanism and a No. 2 connecting mechanism. By combining the No. 1 connecting rod, the No. 1 screw, the slider, etc., several screen bodies can be arranged in a matrix to form a large screen, which improves practicality.

[0041] 2. There are two adjustment mechanisms: No. 1 and No. 2. These mechanisms are used to adjust the No. 1 connecting mechanism on both sides, thereby adjusting the angle of the two large screens on the left and right sides. This allows the display screens to open up to fit the venue, facilitating an immersive viewing experience. Attached Figure Description

[0042] Figure 1 This is the southwest isometric view of this utility model.

[0043] Figure 2 This is the northwest isometric view of this utility model.

[0044] Figure 3 yes Figure 2 Enlarged view of part A in the image.

[0045] Figure 4 yes Figure 2 Enlarged view of part B in the image.

[0046] Figure 5 yes Figure 2 Enlarged view of section C in the image.

[0047] Figure 6 yes Figure 2 Enlarged view of part D in the image.

[0048] Figure 7 This is a schematic diagram of the No. 1 screw in this utility model.

[0049] Figure 8 This is a schematic diagram of the limiting rod in this utility model.

[0050] Explanation of reference numerals in the attached figures:

[0051] Large screen 1, screen body 1-1, first connecting mechanism 2, first connecting rod 2-1, first clamping groove 2-2, connecting shaft 2-3, first bevel gear 2-4, second bevel gear 2-5, hand screw 2-6, sliding block 2-7, sliding bar 2-8, first fixing bolt 2-9, first clamping block 2-10, second connecting mechanism 3, first screw rod 3-1, second connecting rod 3-2, limiting rod 3-3, third screw rod 3-4, scale mark layer 3-5, second screw rod 3-6, first adjusting mechanism 4, first fixing block 4-1, second clamping groove 4-2, first adjusting block 4-3, first fixing shaft 4-4, first fixing nut 4-5, first plug block 4-6, second fixing bolt 4-7, first connecting block 4-8, second clamping block 4-9, second adjusting mechanism 5, second fixing block 5-1, second adjusting block 5-2, second fixing shaft 5-3, second fixing nut 5-4, second plug block 5-5, third fixing bolt 5-6, second connecting block 5-7, third clamping groove 5-8, third clamping block 5-9. DETAILED DESCRIPTION

[0052] The technical solutions in the utility model will be described clearly and completely in connection with the drawings in the description, and all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model, with the preferred embodiments in the description as examples.

[0053] The specific embodiment adopts the following technical solutions:

[0054] Please refer to Figures 1-8 The embodiment comprises three large screens 1; the three large screens 1 are arranged left and right, and the large screens 1 on the left and right are arranged from front to back in a manner of being inclined from outside to inside; the three large screens 1 each comprise a plurality of screen bodies 1-1, and the plurality of screen bodies 1-1 are arranged in a matrix manner;

[0055] It also comprises:

[0056] The first connecting mechanism 2 is provided on the back bottom of the large screen 1, and comprises:

[0057] The first connecting rod 2-1 is provided on the back of the screen body 1-1, and a first clamping groove 2-2 is formed in one end of the first connecting rod 2-1, and a first clamping block 2-10 is integrally formed in the other end of the first connecting rod 2-1; the first clamping block 2-10 of the first connecting rod 2-1 is embedded in the first clamping groove 2-2 of the adjacent first connecting rod 2-1, and is fixed through a bolt; a plurality of ground installation holes are formed in the lowermost plurality of first connecting rods 2-1;

[0058] Connecting shafts 2-3, the number of which is several, and which are respectively screwed on the lowermost connecting rod 2-1 through shafts;

[0059] Bevel gears 2-4, the number of which is several, and which are respectively fixed on the connecting shafts 2-3;

[0060] Bevel gears 2-5, the number of which is several, and which are respectively arranged in meshing with the bevel gears 2-4; the bevel gears 2-5 are screwed on the rear side of the lowermost connecting rod 2-1 through shafts and bearings; the hand screws 2-6 are fixed with the bevel gears 2-5 through bolts; a plurality of anti-skid grooves are formed on the hand screws 2-6;

[0061] Sliding blocks 2-7, the number of which is several, and which are respectively fixed on the front side walls of the upper connecting rods 2-1 through bolts;

[0062] Sliding strips 2-8, the number of which is several, and which are respectively slidingly clamped in the sliding blocks 2-7; the sliding strips 2-8 are respectively fixed in pairs on the back of the screen body 1-1;

[0063] First fixed bolts 2-9, the number of which is several, and which are respectively screwed through in the sliding blocks 2-7 and the sliding strips 2-8;

[0064] Second connecting mechanisms 3, the number of which is several, and which are respectively arranged in the first connecting mechanisms 2; the second connecting mechanisms 3 are arranged in one-to-one correspondence with the connecting shafts 2-3; the second connecting mechanisms 3 each comprise:

[0065] First screw rods 3-1, the number of which is several; the lower ends of the first screw rods 3-1 are integrally formed with second screw rods 3-6; the upper first screw rods 3-1 are screwed on the upper ends of the lower first screw rods 3-1 through the second screw rods 3-6; the lowermost first screw rods 3-1 are screwed in the connecting shafts 2-3 through the second screw rods 3-6; and the first screw rods 3-1 are respectively screwed through in the upper connecting rods 2-1 through threads;

[0066] Second connecting rods 3-2, the number of which is several, and which are respectively fixed on the lowermost connecting rods 2-1 through bolts;

[0067] The lower end of the limiting rod 3-3 is integrally formed with a No. 3 screw rod 3-4, the upper limiting rod 3-3 is screwed on the upper end of the lower limiting rod 3-3 through the No. 3 screw rod 3-4, and the lowermost limiting rod 3-3 is screwed in the No. 2 connecting rod 3-2 through the No. 3 screw rod 3-4; two scale mark layers 3-5 are arranged on the limiting rod 3-3; the upper and lower two scale mark layers 3-5 are arranged on the opposite No. 1 connecting rod 2-1;

[0068] The No. 1 adjusting mechanism 4 is connected with the left and middle No. 1 connecting mechanisms 2 respectively, and each of the No. 1 adjusting mechanism 4 comprises:

[0069] The right end of the No. 1 fixed block 4-1 is provided with a No. 2 clamping groove 4-2; the No. 1 clamping block 2-10 of the leftmost No. 1 connecting rod 2-1 of the middle No. 1 connecting mechanism 2 is embedded in the No. 2 clamping groove 4-2 and fixed by a bolt;

[0070] The No. 1 adjusting block 4-3 is embedded in the right end of the No. 1 fixed block 4-1;

[0071] The No. 1 fixed shaft 4-4 is rotatably connected between the No. 1 fixed block 4-1 and the No. 1 adjusting block 4-3 through a shaft and a bearing;

[0072] The No. 1 fixed nut 4-5 is rotatably connected on the No. 1 fixed shaft 4-4 through a thread, and the No. 1 fixed nut 4-5 is arranged on the No. 1 fixed block 4-1;

[0073] The No. 1 plug block 4-6 is movably embedded in the No. 1 adjusting block 4-3;

[0074] The No. 2 fixed bolt 4-7 is rotatably connected through a thread after passing through the No. 1 adjusting block 4-3, and the inner end of the No. 2 fixed bolt 4-7 is arranged on the No. 1 plug block 4-6;

[0075] The No. 1 connecting block 4-8 is integrally formed with the left end of the No. 1 plug block 4-6, the left end of the No. 1 connecting block 4-8 is integrally formed with a No. 2 clamping block 4-9, the No. 2 clamping block 4-9 is arranged in cooperation with a No. 1 clamping groove 2-2 on the rightmost No. 1 connecting rod 2-1 in the left No. 1 connecting mechanism 2, and is fixed by a bolt;

[0076] The No. 2 adjusting mechanism 5 is connected with the right and middle No. 2 connecting mechanisms 3 respectively, and each of the No. 2 adjusting mechanism 5 comprises:

[0077] The right end of the second fixing block 5-1 is provided with a third clamping groove 5-8, which is matched with a first clamping block 2-10 on the leftmost first connecting rod 2-1 of the right first connecting mechanism 2 and is fixed by a bolt;

[0078] The second adjusting block 5-2 is embedded in the right end of the second fixing block 5-1;

[0079] The second fixing shaft 5-3 is rotatably arranged between the second fixing block 5-1 and the second adjusting block 5-2 through a bearing;

[0080] The second fixing nut 5-4 is threadedly rotatably arranged on the second fixing shaft 5-3 and abuts against the second fixing block 5-1;

[0081] The second inserting block 5-5 is movably arranged in the second adjusting block 5-2;

[0082] The third fixing bolt 5-6 is threadedly rotatably arranged through the second adjusting block 5-2 and abuts against the second inserting block 5-5;

[0083] The second connecting block 5-7 is integrally formed with the left end of the second inserting block 5-5, and the left end of the second connecting block 5-7 is integrally formed with a third clamping block 5-9, which is embedded in a first clamping groove 2-2 of the rightmost first connecting rod 2-1 of the middle first connecting mechanism 2 and is fixed by a bolt.

[0084] In use, according to actual needs, a plurality of first connecting rods 2-1 are arranged in series, the first clamping block 2-10 of the first connecting rod 2-1 is embedded in the first clamping groove 2-2 of the adjacent first connecting rod 2-1 and is fixed by a bolt, the upper first screw rod 3-1 is threadedly rotatably arranged on the upper end of the lower first screw rod 3-1 through the second screw rod 3-6, the lowermost first screw rod 3-1 is threadedly rotatably arranged in the connecting shaft 2-3 through the second screw rod 3-6, the upper limiting rod 3-3 is threadedly rotatably arranged in the lower limiting rod 3-3 through the third screw rod 3-4, and the lowermost limiting rod 3-3 is threadedly rotatably arranged in the second connecting rod 3-2 through the third screw rod 3-4, the first connecting rod 2-1 is placed on the first screw rod 3-1 and the limiting rod 3-3, the second bevel gear 2-5 is rotated by hand, the first bevel gear 2-4 is rotated, the first screw rod 3-1 is rotated, the plurality of first connecting rods 2-1 are lowered, and the position of the first connecting rod 2-1 is indicated by the scale mark layer 3-5;

[0085] The first locking block 2-10 of the leftmost first connecting rod 2-1 of the first connecting mechanism 2 in the middle is embedded in the second slot 4-2 of the first fixing block 4-1 and fixed with bolts. The first insert block 4-6 moves in the first adjusting block 4-3. The first adjusting block 4-3 is rotated so that the second locking block 4-9 on the first connecting block 4-8 ​​is engaged with the first slot 2-2 on the rightmost first connecting rod 2-1 in the first connecting mechanism 2 on the left and fixed with bolts. The second fixing bolt 4-7 passes through the first adjusting block 4-3 by threading and its inner end abuts against the first insert block 4-6, so that the first insert block 4-6 is fixed.

[0086] The third slot 5-8 of the second fixing block 5-1 is matched with the first block 2-10 on the leftmost connecting rod 2-1 on the right side of the first connecting mechanism 2, and fixed by bolts; the second insert block 5-5 moves in the second adjusting block 5-2, and the second adjusting block 5-2 is rotated so that the third block 5-9 of the second connecting block 5-7 is embedded in the first slot 2-2 of the rightmost connecting rod 2-1 on the middle first connecting mechanism 2, and fixed by bolts; the third fixing bolt 5-6 passes through the second adjusting block 5-2 by threading, and its inner end abuts against the second insert block 5-5, so that the second insert block 5-5 is fixed.

[0087] Several screen bodies 1-1 are passed through the slide groove by slide bars 2-8 respectively, and the first fixing bolt 2-9 is threaded through the slider 2-7 and slide bar 2-8 to fix the screen body 1-1, thus forming a large screen 1.

[0088] Compared with the prior art, the beneficial effects of this utility model are:

[0089] 1. It is equipped with a first connecting mechanism 2 and a second connecting mechanism 3. By combining the first connecting rod 2-1, the first screw 3-1, the slider 2-7, etc., several screen bodies 1-1 can be arranged in a matrix to form a large screen 1, which improves practicality.

[0090] 2. It is equipped with a first adjustment mechanism 4 and a second adjustment mechanism 5. The first adjustment mechanism 4 and the second adjustment mechanism 5 are used to adjust the first connecting mechanism 2 on the left and right sides to adjust the angle of the two large screens 1 on the left and right sides, so that the display screen can be opened to match the venue and facilitate immersive viewing.

[0091] 3. The limiting rod 3-3 is provided with a scale marking layer 3-5, which indicates the position of the first connecting rod 2-1, so that the first connecting rod 2-1 is placed accurately;

[0092] 4. It is equipped with a hand-tightening mechanism 2-6, which facilitates the rotation of screw 3-1 and makes operation convenient.

[0093] For those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, and equivalent replacement of part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. An adjustable super large screen, comprising three large screens (1); the left and right large screens (1) are arranged left and right, and the left and right large screens (1) are arranged from front to back in a tilt manner from outside to inside; each of the three large screens (1) comprises a plurality of screen bodies (1-1), and the plurality of screen bodies (1-1) are arranged in a matrix manner; characterized in that It also comprises: A first connecting mechanism (2), the number of the first connecting mechanism (2) is three, and the first connecting mechanism (2) is arranged at the bottom of the back of the large screen (1); the first connecting mechanism (2) comprises: A first connecting rod (2-1), the number of the first connecting rod (2-1) is a plurality, and the first connecting rod (2-1) is arranged at the back of the screen body (1-1); one end of the first connecting rod (2-1) is provided with a first clamping groove (2-2), and the other end of the first connecting rod (2-1) is integrally formed with a first clamping block (2-10); the first clamping block (2-10) of the first connecting rod (2-1) is embedded in the first clamping groove (2-2) of the adjacent first connecting rod (2-1), and is fixed; the lowermost plurality of first connecting rods (2-1) are provided with a plurality of ground mounting holes; A connecting shaft (2-3), the number of the connecting shaft (2-3) is a plurality, and the connecting shaft (2-3) is rotatably connected to the lowermost first connecting rod (2-1) through a shaft; A first bevel gear (2-4), the number of the first bevel gear (2-4) is a plurality, and the first bevel gear (2-4) is fixedly sleeved on the connecting shaft (2-3); A second bevel gear (2-5), the number of the second bevel gear (2-5) is a plurality, and the second bevel gear (2-5) is arranged in meshing with the first bevel gear (2-4); the second bevel gear (2-5) is rotatably connected to the rear side of the lowermost first connecting rod (2-1) through a shaft and a bearing; A sliding block (2-7), the number of the sliding block (2-7) is a plurality, and the sliding block (2-7) is fixedly arranged on the front side wall of the upper first connecting rod (2-1); A sliding strip (2-8), the number of the sliding strip (2-8) is a plurality, and the sliding strip (2-8) is slidingly arranged in the sliding block (2-7); the sliding strip (2-8) is fixedly arranged on the back of the screen body (1-1) in pairs; A first fixing bolt (2-9), the number of the first fixing bolt (2-9) is a plurality, and the first fixing bolt (2-9) is rotatably connected in the sliding block (2-7) and the sliding strip (2-8) through threads; A second connecting mechanism (3), the number of the second connecting mechanism (3) is a plurality, and the second connecting mechanism (3) is arranged in the first connecting mechanism (2); the second connecting mechanism (3) is arranged in one-to-one correspondence with the connecting shaft (2-3); A first adjusting mechanism (4), the number of the first adjusting mechanism (4) is a plurality, and the first adjusting mechanism (4) is connected with the left and middle first connecting mechanisms (2); A second adjusting mechanism (5), the number of the second adjusting mechanism (5) is a plurality, and the second adjusting mechanism (5) is connected with the right and middle second connecting mechanisms (3).

2. The adjustable oversize screen of claim 1, wherein: The hand screw (2-6) is fixed with the second bevel gear (2-5); a plurality of anti-skid grooves are formed in the hand screw (2-6).

3. The adjustable oversize screen of claim 1, wherein: The second connecting mechanism (3) comprises: A number of first screws (3-1) are provided, the lower end of each first screw (3-1) is integrally formed with a second screw (3-6), the upper first screw (3-1) is screwed on the upper end of the lower first screw (3-1) through the second screw (3-6), the lowermost first screw (3-1) is screwed in the connecting shaft (2-3) through the second screw (3-6); each first screw (3-1) is screwed in the upper first connecting rod (2-1) through the thread; A number of second connecting rods (3-2) are provided, and each second connecting rod (3-2) is fixed on the lowermost first connecting rod (2-1); A number of limiting rods (3-3) are provided, the lower end of each limiting rod (3-3) is integrally formed with a third screw (3-4), the upper limiting rod (3-3) is screwed on the upper end of the lower limiting rod (3-3) through the third screw (3-4), and the lowermost limiting rod (3-3) is screwed in the second connecting rod (3-2) through the third screw (3-4).

4. The adjustable oversize screen of claim 3, wherein: Two scale mark layers (3-5) are arranged on the limiting rod (3-3); the upper and lower scale mark layers (3-5) are arranged on the opposite first connecting rods (2-1).

5. The adjustable oversize screen of claim 1, wherein: Each first adjusting mechanism (4) comprises: A first fixed block (4-1) is provided, the right end of the first fixed block (4-1) is provided with a second clamping groove (4-2); the first clamping block (2-10) of the leftmost first connecting rod (2-1) of the middle first connecting mechanism (2) is embedded in the second clamping groove (4-2) and fixed; A first adjusting block (4-3) is embedded in the right end of the first fixed block (4-1); A first fixed shaft (4-4) is rotatably arranged between the first fixed block (4-1) and the first adjusting block (4-3) through a shaft and a bearing; A first fixed nut (4-5) is screwed on the first fixed shaft (4-4) and abuts against the first fixed block (4-1); A first plug (4-6) is movably arranged in the first adjusting block (4-3); A second fixed bolt (4-7) is screwed through the first adjusting block (4-3) and abuts against the first plug (4-6) at the inner end; A first connecting block (4-8) is integrally arranged with the left end of the first plug (4-6), the left end of the first connecting block (4-8) is integrally formed with a second clamping block (4-9), the second clamping block (4-9) is arranged in cooperation with a first clamping groove (2-2) on the rightmost first connecting rod (2-1) in the left first connecting mechanism (2) and fixed.

6. The adjustable oversize screen of claim 1, wherein: Each second adjusting mechanism (5) comprises: The right end of the second fixing block (5-1) is provided with a third clamping groove (5-8), the third clamping groove (5-8) is matched with a first clamping block (2-10) on the leftmost first connecting rod (2-1) of the right first connecting mechanism (2), and is fixed; The second adjusting block (5-2) is embedded in the right end of the second fixing block (5-1); The second fixing shaft (5-3) is rotatably connected between the second fixing block (5-1) and the second adjusting block (5-2) through a bearing; The second fixing nut (5-4) is threadedly connected on the second fixing shaft (5-3) and abuts against the second fixing block (5-1); The second inserting block (5-5) is movably inserted into the second adjusting block (5-2); The third fixing bolt (5-6) is threadedly connected through the second adjusting block (5-2) and abuts against the second inserting block (5-5); The second connecting block (5-7) is integrally formed with the left end of the second inserting block (5-5), and the left end of the second connecting block (5-7) is integrally formed with a third clamping block (5-9), the third clamping block (5-9) is embedded in a first clamping groove (2-2) of the rightmost first connecting rod (2-1) of the middle first connecting mechanism (2), and is fixed.

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