Up-and-down linkage lock and wind-resistant frame using same

Abstract

The invention relates to the technical field of wind-resistant frames, in particular to an up-down linkage lock and a wind-resistant frame using the same. An upper positioning pin is telescopically and movably arranged at the top of the positioning rod; a lower positioning pin is telescopically and movably arranged at the bottom of the positioning rod; a trigger seat is arranged in the middle of the positioning rod; the trigger seat is telescopically and movably provided with a pressing handle; a linkage assembly is arranged among the pressing handle, the upper positioning pin, the lower positioning pin and the trigger seat; an upper sliding seat is arranged at the top of the positioning rod; an upper channel is formed in the upper sliding seat in a penetrating manner; the upper positioning pin convexly extends into the upper channel; a lower sliding seat is arranged at the bottom of the positioning rod; the lower sliding seat is provided with a lower channel in a penetrating manner; and the lower positioning pin convexly extends into the lower channel. By arranging the linkage assembly, a user can control and press the handle with one hand, namely, the wind-resistant frame can be in an unlocked state, at the moment, the wind-resistant frame can be folded, unfolded or changed in angle conveniently, and the user can use the wind-resistant frame conveniently.

Description

Technical Field

[0001] The present invention relates to the technical field of wind-resistant frames, and particularly relates to an upper and lower linkage lock and a wind-resistant frame using the lock. Background Art

[0002] In modern society, display screens are widely used in various scenarios, such as outdoor advertising, traffic indication, exhibition display, etc. In these application scenarios, display screens often face tests of harsh weather such as strong winds. To ensure that the display screen is stably placed under various meteorological conditions and avoid tipping due to the action of wind force, causing equipment damage or safety accidents, a wind-resistant frame is usually provided on the back of the display screen.

[0003] At the same time, considering the convenience during the installation, handling, and storage of the display screen, a foldable wind-resistant frame has emerged. This design allows the wind-resistant frame to be stored on the back of the display screen when not in use, greatly saving storage space and reducing the transportation difficulty.

[0004] However, the existing foldable wind-resistant frames generally have the problem of complex structures. Excessive components and cumbersome connection methods not only increase the production and manufacturing costs but also make the installation and disassembly processes extremely difficult. In addition, during actual use, the operation steps of these wind-resistant frames are cumbersome, and users need to spend a lot of time and effort to unfold and fix the wind-resistant frame, reducing work efficiency and bringing great inconvenience to users. Summary of the Invention

[0005] The purpose of the present invention is to address the above deficiencies in the prior art by providing an upper and lower linkage lock and a wind-resistant frame using the lock.

[0006] The purpose of the present invention is achieved through the following technical solutions: An upper and lower linkage lock includes a positioning rod; an upper positioning pin is telescopically and movably provided at the top of the positioning rod; a lower positioning pin is telescopically and movably provided at the bottom of the positioning rod; a trigger seat is provided in the middle of the positioning rod; a pressing handle is telescopically and movably provided on the trigger seat.

[0007] A linkage component is provided between the pressing handle, the upper positioning pin, the lower positioning pin, and the trigger seat.

[0008] An upper sliding seat is provided at the top of the positioning rod; an upper channel is provided through the upper sliding seat; the upper positioning pin protrudes into the upper channel; a lower sliding seat is provided at the bottom of the positioning rod; a lower channel is provided through the lower sliding seat; the lower positioning pin protrudes into the lower channel.

[0009] The present invention is further configured such that an upper limit seat is provided at the top of the positioning rod; the upper limit seat is provided with an upper limit groove; the upper positioning pin is telescopically and movably arranged in the upper limit groove; a lower limit seat is provided at the bottom of the positioning rod; the lower limit seat is provided with a lower limit groove; the lower positioning pin is telescopically and movably arranged in the lower limit groove; the upper sliding seat is arranged on the top of the upper limit seat; and the lower sliding seat is arranged on the bottom of the lower limit seat.

[0010] The present invention is further configured such that the upper positioning pin is provided with an upper limit ring; an upper limit spring is provided between the bottom of the upper limit ring and the upper limit groove; the lower positioning pin is provided with a lower limit ring; and a lower limit spring is provided between the top of the lower limit ring and the lower limit groove.

[0011] The present invention is further configured such that the pressing handle is provided with a fixing pin; the fixing pin is provided with a positioning block; the trigger seat is provided with a positioning groove; and the positioning block is slidably arranged in the positioning groove.

[0012] The present invention is further configured such that the linkage assembly includes an upper lever member, a lower lever member, a first upper pull rod, and a first lower pull rod;

[0013] The middle part of the upper lever member is hinged to the trigger seat; one end of the upper lever member abuts against the pressing handle; and the other end of the upper lever member is connected to the upper positioning pin through the first upper pull rod.

[0014] The middle part of the lower lever member is hinged to the trigger seat; one end of the lower lever member abuts against the pressing handle; and the other end of the lower lever member is connected to the lower positioning pin through the first lower pull rod.

[0015] The present invention is further configured such that the linkage assembly includes an upper linkage block, a lower linkage block, a second upper pull rod, and a second lower pull rod; the upper linkage block is connected to the upper positioning pin through the second upper pull rod; and the lower linkage block is connected to the lower positioning pin through the second lower pull rod.

[0016] The upper linkage block is provided with an upper inclined groove and an upper vertical groove; the trigger seat is fixedly provided with a first upper fixed shaft and a second upper fixed shaft; the first upper fixed shaft and the second upper fixed shaft are movably arranged in the upper inclined groove; the pressing handle is provided with a third upper fixed shaft; and the third upper fixed shaft is movably arranged in the upper vertical groove.

[0017] The lower linkage block is provided with a lower inclined groove and a lower vertical groove; the trigger seat is fixedly provided with a first lower fixed shaft and a second lower fixed shaft; the first lower fixed shaft and the second lower fixed shaft are movably arranged in the lower inclined groove; the pressing handle is provided with a third lower fixed shaft; and the third lower fixed shaft is movably arranged in the lower vertical groove.

[0018] An anti-wind frame, comprising a display screen support, a support rod, a first upper connecting rod, a second upper connecting rod, a first lower connecting rod and a second lower connecting rod; one end of the first upper connecting rod is hinged to one side of the top of the display screen support; the other end of the first upper connecting rod is connected to the top of the support rod; one end of the first lower connecting rod is hinged to one side of the bottom of the display screen support; the other end of the first lower connecting rod is connected to the bottom of the support rod; one end of the second upper connecting rod is hinged to the other side of the top of the display screen support; the other end of the second upper connecting rod is hinged to an upper sliding seat; one end of the second lower connecting rod is hinged to the other side of the bottom of the display screen support; the other end of the second lower connecting rod is hinged to a lower sliding seat; the first upper connecting rod is disposed through an upper channel; the first lower connecting rod is disposed through a lower channel.

[0019] The present invention is further configured such that a plurality of upper positioning holes for cooperating with an upper positioning pin are provided along the length direction at the bottom of the first upper connecting rod; a plurality of lower positioning holes for cooperating with the upper positioning pin are provided along the length direction at the top of the first lower connecting rod.

[0020] The present invention is further configured such that a plurality of upper pulleys are provided on the upper sliding seat; the upper pulleys are slidably connected to the first upper connecting rod; a plurality of lower pulleys are provided on the lower sliding seat; the lower pulleys are slidably connected to the first lower connecting rod.

[0021] The present invention is further configured such that the second upper connecting rod and the second lower connecting rod are both provided with a yielding arc surface for yielding to the support rod.

[0022] The beneficial effect of the present invention: By providing a linkage assembly, the user can form an unlocked state of the anti-wind frame by pressing a handle with one hand. At this time, it is convenient to fold, unfold or change the angle of the anti-wind frame, which is convenient for the user to use. Description of the Drawings

[0023] The invention is further described with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation to the present invention. For those of ordinary skill in the art, other drawings can be obtained according to the following drawings without creative efforts.

[0024] Figure 1 is a schematic structural view of the anti-wind frame of the present invention when unfolded;

[0025] Figure 2 is a schematic structural view of the anti-wind frame of the present invention when folded;

[0026] Figure 3 is a schematic structural view of the up-and-down linkage lock of Embodiment 1;

[0027] Figure 4 is a cross-sectional view of the up-and-down linkage lock of Embodiment 1;

[0028] Figure 5 is Figure 4 a partial enlarged view of part A in

[0029] Figure 6 is Figure 4 a partial enlarged view of part B in

[0030] Figure 7 is Figure 4 a partial enlarged view of part C in

[0031] Figure 8 a schematic structural view of the up - and - down linkage lock of Embodiment 2;

[0032] Figure 9 a cross - sectional view of the up - and - down linkage lock of Embodiment 2;

[0033] Figure 10 is Figure 9 a partial enlarged view of part D in

[0034] Figure 11 is Figure 9 a partial enlarged view of part E in

[0035] Figure 12 is Figure 9 a partial enlarged view of part F in

[0036] Wherein: 1, positioning rod; 2, upper positioning pin; 21, upper limit ring; 22, upper limit spring; 3, lower positioning pin; 31, lower limit ring; 32, lower limit spring; 4, trigger seat; 41, first upper fixed shaft; 42, second upper fixed shaft; 43, first lower fixed shaft; 44, second lower fixed shaft; 45, positioning groove;

[0037] 5, pressing handle; 51, third upper fixed shaft; 52, third lower fixed shaft; 53, fixing pin; 54, positioning block; 611, upper lever member; 612, lower lever member; 621, upper linkage block; 622, upper inclined groove; 623, upper vertical groove; 624, lower linkage block; 625, lower inclined groove; 626, lower vertical groove; 711, first upper pull rod; 712, first lower pull rod; 721, second upper pull rod; 722, second lower pull rod; 81, upper limit seat; 82, upper limit groove; 83, lower limit seat; 84, lower limit groove; 85, upper sliding seat; 86, upper channel; 87, lower sliding seat; 88, lower channel; 89, upper pulley; 80, lower pulley; 91, display screen bracket; 92, support rod; 93, first upper connecting rod; 94, second upper connecting rod; 95, first lower connecting rod; 96, second lower connecting rod; 97, upper positioning hole; 98, lower positioning hole; 99, relief arc surface. Detailed implementation manners

[0038] The present invention will be further described in conjunction with the following embodiments.

[0039] Example 1. As can be seen from Figures 3 to 7 Figures 3 to 7 , a kind of up-and-down linkage lock described in this embodiment includes a positioning rod 1; a top telescopic movable upper positioning pin 2 is arranged at the top of the positioning rod 1; a bottom telescopic movable lower positioning pin 3 is arranged at the bottom of the positioning rod 1; a trigger seat 4 is arranged in the middle of the positioning rod 1; a pressing handle 5 is arranged on the trigger seat 4 in a telescopic movable manner;

[0040] A linkage assembly is arranged among the pressing handle 5, the upper positioning pin 2, the lower positioning pin 3 and the trigger seat 4;

[0041] An upper sliding seat 85 is arranged at the top of the positioning rod 1; an upper channel 86 runs through the upper sliding seat 85; the upper positioning pin 2 protrudes into the upper channel 86; a lower sliding seat 87 is arranged at the bottom of the positioning rod 1; a lower channel 88 runs through the lower sliding seat 87; the lower positioning pin 3 protrudes into the lower channel 88.

[0042] Specifically, for the up-and-down linkage lock described in this embodiment, when it is necessary to fold, unfold or change the angle of the wind-resistant frame, by pressing the pressing handle 5 towards the inside of the trigger seat 4, the pressing drives the upper positioning pin 2 and the lower positioning pin 3 to contract through the linkage assembly, so that the wind-resistant frame is in an unlocked state. At this time, by moving the positioning rod 1, the positioning rod 1 moves through the upper sliding seat 85 and the lower sliding seat 87, which is convenient for folding, unfolding or changing the angle of the wind-resistant frame.

[0043] In this embodiment, by setting the linkage assembly, the user can control the pressing handle 5 with one hand to unlock the wind-resistant frame. At this time, it is convenient to fold, unfold or change the angle of the wind-resistant frame, which is convenient for the user to use.

[0044] For the up-and-down linkage lock described in this embodiment, an upper limit seat 81 is arranged at the top of the positioning rod 1; an upper limit groove 82 is arranged on the upper limit seat 81; the upper positioning pin 2 is arranged in the upper limit groove 82 in a telescopic movable manner; a lower limit seat 83 is arranged at the bottom of the positioning rod 1; a lower limit groove 84 is arranged on the lower limit seat 83; the lower positioning pin 3 is arranged in the lower limit groove 84 in a telescopic movable manner; the upper sliding seat 85 is arranged on the top of the upper limit seat 81; the lower sliding seat 87 is arranged at the bottom of the lower limit seat 83. Specifically, the above settings can play a role in limiting the telescopic movement of the upper positioning pin 2 and the telescopic movement of the lower positioning pin 3.

[0045] A kind of up-and-down linkage lock described in this embodiment, the upper positioning pin 2 is provided with an upper limit ring 21; an upper limit spring 22 is arranged between the bottom of the upper limit ring 21 and the upper limit groove 82; the lower positioning pin 3 is provided with a lower limit ring 31; a lower limit spring 32 is arranged between the top of the lower limit ring 31 and the lower limit groove 84. Through the above settings, when in the natural state, under the action of the upper limit spring 22, the upper positioning pin 2 protrudes out of the upper limit groove 82 to lock the wind-resistant frame; and when in the natural state, under the action of the lower limit spring 32, the lower positioning pin 3 protrudes out of the lower limit groove 84 to lock the wind-resistant frame.

[0046] A kind of up-and-down linkage lock described in this embodiment, the pressing handle 5 is provided with a fixing pin 53; the fixing pin 53 is provided with a positioning block 54; the trigger seat 4 is provided with a positioning groove 45; the positioning block 54 is slidably arranged in the positioning groove 45. Through the above settings, it can prevent the pressing handle 5 from falling off the trigger seat 4.

[0047] A kind of up-and-down linkage lock described in this embodiment, the linkage assembly includes an upper lever member 611, a lower lever member 612, a first upper pull rod 711 and a first lower pull rod 712;

[0048] The middle part of the upper lever member 611 is hinged to the trigger seat 4; one end of the upper lever member 611 abuts against the pressing handle 5; the other end of the upper lever member 611 is connected to the upper positioning pin 2 through the first upper pull rod 711;

[0049] The middle part of the lower lever member 612 is hinged to the trigger seat 4; one end of the lower lever member 612 abuts against the pressing handle 5; the other end of the lower lever member 612 is connected to the lower positioning pin 3 through the first lower pull rod 712.

[0050] Specifically, when it is necessary to fold, unfold or change the angle of the wind-resistant frame, by pressing the pressing handle 5 in the direction of the inside of the trigger seat 4, during the movement of the pressing handle 5, one end of the upper lever member 611 and one end of the lower lever member 612 are pushed, so that the other end of the upper lever member 611 moves downward, and at the same time the other end of the lower lever member 612 moves upward, and then the upper positioning pin 2 and the lower positioning pin 3 are respectively driven to contract through the first upper pull rod 711 and the first lower pull rod 712, so that the wind-resistant frame is in an unlocked state, and at this time it is convenient to fold, unfold or change the angle of the wind-resistant frame.

[0051] Embodiment 2, by Figures 8 to 12It can be seen that, different from Embodiment 1, for an up-and-down linkage lock described in this embodiment, the linkage assembly includes an upper linkage block 621, a lower linkage block 624, a second upper pull rod 721, and a second lower pull rod 722; the upper linkage block 621 is connected to the upper positioning pin 2 through the second upper pull rod 721; the lower linkage block 624 is connected to the lower positioning pin 3 through the second lower pull rod 722;

[0052] The upper linkage block 621 is provided with an upper inclined groove 622 and an upper vertical groove 623; the trigger seat 4 is fixedly provided with a first upper fixed shaft 41 and a second upper fixed shaft 42; the first upper fixed shaft 41 and the second upper fixed shaft 42 are movably arranged in the upper inclined groove 622; the pressing handle 5 is provided with a third upper fixed shaft 51; the third upper fixed shaft 51 is movably arranged in the upper vertical groove 623;

[0053] The lower linkage block 624 is provided with a lower inclined groove 625 and a lower vertical groove 626; the trigger seat 4 is fixedly provided with a first lower fixed shaft 43 and a second lower fixed shaft 44; the first lower fixed shaft 43 and the second lower fixed shaft 44 are movably arranged in the lower inclined groove 625; the pressing handle 5 is provided with a third lower fixed shaft 52; the third lower fixed shaft 52 is movably arranged in the lower vertical groove 626.

[0054] Specifically, when it is necessary to fold, unfold or change the angle of the wind-resistant frame, by pressing the pressing handle 5 towards the inside of the trigger seat 4, during the movement of the pressing handle 5, the first upper fixed shaft 41 and the second upper fixed shaft 42 move in the upper inclined groove 622 while the third upper fixed shaft 51 moves in the upper vertical groove 623. With the cooperation of the first upper fixed shaft 41, the second upper fixed shaft 42, the upper inclined groove 622, the third upper fixed shaft 51, and the upper vertical groove 623, it plays a role in limiting the movement of the upper linkage block 621, so that the upper linkage block 621 moves downward, and the upper positioning pin 2 is driven to contract through the second upper pull rod 721; at the same time, during the movement of the pressing handle 5, the first lower fixed shaft 43 and the second lower fixed shaft 44 move in the lower inclined groove 625 while the third lower fixed shaft 52 moves in the lower vertical groove 626. With the cooperation of the first lower fixed shaft 43, the second lower fixed shaft 44, the lower inclined groove 625, the third lower fixed shaft 52, and the lower vertical groove 626, it plays a role in limiting the movement of the lower linkage block 624, so that the lower linkage block 624 moves upward, and the lower positioning pin 3 is driven to contract through the second lower pull rod 722, so that the wind-resistant frame is in an unlocked state, and at this time, it is convenient to fold, unfold or change the angle of the wind-resistant frame.

[0055] From Figures 1 to 2It can be seen that a wind-resistant frame described in this embodiment includes a display screen bracket 91, a support rod 92, a first upper connecting rod 93, a second upper connecting rod 94, a first lower connecting rod 95, and a second lower connecting rod 96. One end of the first upper connecting rod 93 is hinged to one side of the top of the display screen bracket 91. The other end of the first upper connecting rod 93 is connected to the top of the support rod 92. One end of the first lower connecting rod 95 is hinged to one side of the bottom of the display screen bracket 91. The other end of the first lower connecting rod 95 is connected to the bottom of the support rod 92. One end of the second upper connecting rod 94 is hinged to the other side of the top of the display screen bracket 91. The other end of the second upper connecting rod 94 is hinged to the upper sliding seat 85. One end of the second lower connecting rod 96 is hinged to the other side of the bottom of the display screen bracket 91. The other end of the second lower connecting rod 96 is hinged to the lower sliding seat 87. The first upper connecting rod 93 passes through the upper channel 86. The first lower connecting rod 95 passes through the lower channel 88.

[0056] Specifically, in the wind-resistant frame described in this embodiment, in the natural state, under the action of the upper limit spring 22 and the lower limit spring 32, the upper positioning pin 2 and the lower positioning pin 3 are in the extended state. At this time, the upper positioning pin 2 and the lower positioning pin 3 are respectively clamped with the first upper connecting rod 93 and the first lower connecting rod 95, and the upper sliding seat 85 and the lower sliding seat 87 cannot move, so as to maintain the overall stability of the wind-resistant frame.

[0057] When it is necessary to fold, unfold or change the angle of the wind-resistant frame, by pressing the pressing handle 5 in the direction of the inside of the trigger seat 4, the pressing drives the upper positioning pin 2 and the lower positioning pin 3 to contract through the linkage assembly, so that the wind-resistant frame is in an unlocked state. At this time, the upper positioning pin 2 and the lower positioning pin 3 are respectively separated from the first upper connecting rod 93 and the first lower connecting rod 95, and the upper sliding seat 85 and the lower sliding seat 87 can move along the first upper connecting rod 93 and the first lower connecting rod 95 respectively. The user can push the positioning rod 1 to move, so that under the action of the first upper connecting rod 93, the second upper connecting rod 94, the first lower connecting rod 95 and the second lower connecting rod 96, the wind-resistant frame can be folded, unfolded or the angle can be changed, which is convenient for the user to operate.

[0058] In a wind-resistant frame described in this embodiment, a plurality of upper positioning holes 97 for cooperating with the upper positioning pin 2 are arranged along the length direction at the bottom of the first upper connecting rod 93. A plurality of lower positioning holes 98 for cooperating with the upper positioning pin 2 are arranged along the length direction at the top of the first lower connecting rod 95. Specifically, through the above settings, the upper positioning pin 2 can be fixed with different upper positioning holes 97, and the lower positioning pin 3 can be fixed with different lower positioning holes 98, so as to adjust the folding angle of the wind-resistant frame.

[0059] An anti-wind frame according to this embodiment, wherein the upper sliding seat 85 is provided with a plurality of upper pulleys 89; the upper pulleys 89 are slidably connected to the first upper connecting rod 93; the lower sliding seat 87 is provided with a plurality of lower pulleys 80; the lower pulleys 80 are slidably connected to the first lower connecting rod 95. Through the above settings, it is convenient for the upper sliding seat 85 to slide along the first upper connecting rod 93 and for the lower sliding seat 87 to slide along the first lower connecting rod 95.

[0060] An anti-wind frame according to this embodiment, wherein the second upper connecting rod 94 and the second lower connecting rod 96 are both provided with a yielding arc surface 99 for yielding to the support rod 92. Through the above settings, when the anti-wind frame is completely folded, it is convenient for the second upper connecting rod 94 and the second lower connecting rod 96 to yield to the support rod 92 respectively, which can effectively save the overall space.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting the protection scope of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. An up-and-down linkage lock, characterized in that: It includes a positioning rod (1); an upper positioning pin (2) is telescopically and movably arranged at the top of the positioning rod (1); a lower positioning pin (3) is telescopically and movably arranged at the bottom of the positioning rod (1); a trigger seat (4) is arranged in the middle of the positioning rod (1); a pressing handle (5) is telescopically and movably arranged on the trigger seat (4); A linkage assembly is arranged among the pressing handle (5), the upper positioning pin (2), the lower positioning pin (3) and the trigger seat (4); An upper sliding seat (85) is arranged at the top of the positioning rod (1); an upper channel (86) runs through the upper sliding seat (85); the upper positioning pin (2) protrudes into the upper channel (86); a lower sliding seat (87) is arranged at the bottom of the positioning rod (1); a lower channel (88) runs through the lower sliding seat (87); the lower positioning pin (3) protrudes into the lower channel (88).

2. The up-and-down linkage lock according to claim 1, characterized in that: An upper limit seat (81) is arranged at the top of the positioning rod (1); an upper limit groove (82) is arranged on the upper limit seat (81); the upper positioning pin (2) is telescopically and movably arranged in the upper limit groove (82); a lower limit seat (83) is arranged at the bottom of the positioning rod (1); a lower limit groove (84) is arranged on the lower limit seat (83); the lower positioning pin (3) is telescopically and movably arranged in the lower limit groove (84); the upper sliding seat (85) is arranged at the top of the upper limit seat (81); the lower sliding seat (87) is arranged at the bottom of the lower limit seat (83).

3. The up-and-down linkage lock according to claim 2, wherein: The upper positioning pin (2) is provided with an upper limit ring (21); an upper limit spring (22) is arranged between the bottom of the upper limit ring (21) and the upper limit groove (82); the lower positioning pin (3) is provided with a lower limit ring (31); a lower limit spring (32) is arranged between the top of the lower limit ring (31) and the lower limit groove (84).

4. The up-and-down linkage lock according to claim 1, wherein: The pressing handle (5) is provided with a fixed pin (53); the fixed pin (53) is provided with a positioning block (54); the trigger seat (4) is provided with a positioning groove (45); the positioning block (54) is slidably arranged in the positioning groove (45).

5. The up-and-down linkage lock according to claim 1, characterized in that: The linkage assembly includes an upper lever member (611), a lower lever member (612), a first upper pull rod (711) and a first lower pull rod (712); The middle of the upper lever member (611) is hinged to the trigger seat (4); one end of the upper lever member (611) abuts against the pressing handle (5); the other end of the upper lever member (611) is connected to the upper positioning pin (2) through the first upper pull rod (711); The middle of the lower lever member (612) is hinged to the trigger seat (4); one end of the lower lever member (612) abuts against the pressing handle (5); the other end of the lower lever member (612) is connected to the lower positioning pin (3) through the first lower pull rod (712).

6. The up-and-down linkage lock according to claim 1, characterized in that: The linkage assembly includes an upper linkage block (621), a lower linkage block (624), a second upper pull rod (721) and a second lower pull rod (722); the upper linkage block (621) is connected to the upper positioning pin (2) through the second upper pull rod (721); the lower linkage block (624) is connected to the lower positioning pin (3) through the second lower pull rod (722); The upper linkage block (621) is provided with an upper inclined groove (622) and an upper vertical groove (623); the trigger seat (4) is fixedly provided with a first upper fixed shaft (41) and a second upper fixed shaft (42); the first upper fixed shaft (41) and the second upper fixed shaft (42) are movably arranged in the upper inclined groove (622); the pressing handle (5) is provided with a third upper fixed shaft (51); the third upper fixed shaft (51) is movably arranged in the upper vertical groove (623); The lower linkage block (624) is provided with a lower inclined groove (625) and a lower vertical groove (626); the trigger seat (4) is fixedly provided with a first lower fixed shaft (43) and a second lower fixed shaft (44); the first lower fixed shaft (43) and the second lower fixed shaft (44) are movably arranged in the lower inclined groove (625); the pressing handle (5) is provided with a third lower fixed shaft (52); the third lower fixed shaft (52) is movably arranged in the lower vertical groove (626).

7. A wind-resistant frame using the up-and-down linkage lock according to any one of claims 1-6, characterized in that: The display screen bracket (91) comprises a display screen bracket (91), a support rod (92), a first upper connecting rod (93), a second upper connecting rod (94), a first lower connecting rod (95) and a second lower connecting rod (96); one end of the first upper connecting rod (93) is hinged to one side of the top of the display screen bracket (91); the other end of the first upper connecting rod (93) is connected to the top of the support rod (92); one end of the first lower connecting rod (95) is hinged to one side of the bottom of the display screen bracket (91); the other end of the first lower connecting rod (95) is hinged to the support rod (92); one end of the second upper connecting rod (94) is hinged to the other side of the top of the display screen bracket (91); the other end of the second upper connecting rod (94) is hinged to the upper sliding seat (85); one end of the second lower connecting rod (96) is hinged to the other side of the bottom of the display screen bracket (91); the other end of the second lower connecting rod (96) is hinged to the lower sliding seat (87); the first upper connecting rod (93) is inserted into the upper channel (86); the first lower connecting rod (95) is inserted into the lower channel (88).

8. The wind-resistant frame according to claim 7, wherein: The bottom of the first upper connecting rod (93) is provided with a plurality of upper positioning holes (97) along the length direction for cooperating with the upper positioning pin (2); the top of the first lower connecting rod (95) is provided with a plurality of lower positioning holes (98) along the length direction for cooperating with the upper positioning pin (2).

9. The wind-resistant frame according to claim 7, characterized in that: The upper sliding seat (85) is provided with a plurality of upper pulleys (89); the upper pulleys (89) are slidably connected to the first upper connecting rod (93); the lower sliding seat (87) is provided with a plurality of lower pulleys (80); the lower pulleys (80) are slidably connected to the first lower connecting rod (95).

10. A wind-resistant frame according to claim 7, characterized in that: The second upper connecting rod (94) and the second lower connecting rod (96) are both provided with a cambered surface (99) for making way for the support rod (92).

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