阅读说明：本技术 一种折叠式防暴盾牌 (Foldable riot shield ) 是由 张贻祥 于 2020-11-13 设计创作，主要内容包括：本发明涉及防暴盾牌技术领域,且公开了一种折叠式防暴盾牌,包括主板,所述主板相邻的四边设置有顶板、边板和底板,所述主板上设置有驱动件,所述驱动件被装配驱使顶板、边板和底板可以呈水平至垂直90°翻转,本发明提供的折叠式防暴盾牌具有联动机构和闪光灯,联动机构可以控制锁块和联动块快速向外弹开,锁块和联动块弹开后卡入外壳内使盾体快速成型,这样有利于在较为紧急的情况下使用者可以更快的使用盾牌保护自己,还可以让使用者在不使用的情况下将盾牌快速折叠收纳回来,以最快的最便捷的方法收回锁块和联动块,加快收回的效率,闪光灯可以产生短暂的致盲,防止有人接近,在不伤害别人的情况下保护好自身安全。(The invention relates to the technical field of riot shields and discloses a folding riot shield which comprises a main board, wherein four adjacent sides of the main board are provided with a top plate, a side plate and a bottom plate, a driving piece is arranged on the main board and is assembled to drive the top plate, the side plate and the bottom plate to turn over in a way of being horizontal to vertical 90 degrees, the folding riot shield provided by the invention comprises a linkage mechanism and a flash lamp, the linkage mechanism can control a lock block and a linkage block to quickly spring outwards, the lock block and the linkage block are clamped into a shell after being sprung open to quickly form a shield body, so that a user can quickly use the shield to protect the user in an emergency situation, the user can quickly fold and store the shield back under the non-use situation, the lock block and the linkage block are retracted in the fastest method, the retraction efficiency is accelerated, and the flash lamp can cause blindness for a short time, prevent someone from approaching, protect safety of oneself well under the condition of not injuring others.)

1. The utility model provides a foldable riot shield, includes riot shield, its characterized in that: including mainboard (13), the adjacent four sides of mainboard (13) are provided with roof (15), sideboard (14) and bottom plate (7), be provided with the driving piece on mainboard (13), the driving piece is assembled and is ordered about roof (15), sideboard (14) and bottom plate (7) and can be the upset of level to perpendicular 90.

2. The folding riot shield according to claim 1, wherein: the bottom of bottom plate (7) is provided with apron (9), rotate mutually through the driving piece between bottom plate (7) and the apron (9) and be connected, the driving piece is assembled and is ordered about apron (9) and can be the upset of level to perpendicular 90, and it has apron (9) to articulate through the hinge, the equal fixedly connected with shell (6) in the back of apron (9), roof (15), sideboard (14) and bottom plate (7).

3. The folding riot shield according to claim 2, wherein: two equal fixedly connected with connecting block (17) in top and the bottom at sideboard (14) back, the equal fixedly connected with connecting shell (10) in top and the bottom of apron (9) both sides, connecting shell (10) and connecting block (17) looks adaptation, the equal fixedly connected with braces (8) in both sides at apron (9) back.

4. The folding riot shield according to claim 1, wherein: spout (28) have been seted up at the back of mainboard (13), sliding connection has slider (27) in spout (28), fixedly connected with linkage spring (11) between slider (27) and the relative one side of spout (28) inner wall, the outside that mainboard (13) and extension to mainboard (13) are run through at the top of slider (27), the top fixedly connected with linkage piece (5) and locking piece (1) of slider (27), linkage piece (5) and locking piece (1) and shell (6) looks adaptation, the back fixedly connected with of linkage piece (5) pushes away button (12).

5. The folding riot shield according to claim 1, wherein: the inside of mainboard (13) is provided with link gear (3), link gear (3) are including runner (20), latch (24), pinion rack (19), first fixture block (21), locking piece (1) and linkage piece (5), the back of mainboard (13) inner wall rotates and is connected with runner (20), the surface of runner (20) is provided with latch (24), the equal fixedly connected with first fixture block (21) of one side of locking piece (1) and linkage piece (5), the equal fixedly connected with pinion rack (19) of rear side of locking piece (1) and linkage piece (5) one side, tooth's socket (26) have been seted up on pinion rack (19), tooth's socket (26) mesh with latch (24), can drive four through latch (24) when applying a revolving force for runner (20) pinion rack (19) draw in simultaneously.

6. The folding riot shield according to claim 5, wherein: the top of runner (20) is provided with pressing means (29), pressing means (29) is including button (22), pressing spring (23), second fixture block (25), the top fixedly connected with pressing spring (23) of runner (20), the quantity of pressing spring (23) is four, the top fixedly connected with button (22) of pressing spring (23), the bottom fixedly connected with second fixture block (25) of button (22), second fixture block (25) and first fixture block (21) looks adaptation.

7. The folding riot shield according to claim 1, wherein: the utility model discloses a top plate, including roof (15) the both sides at the back are provided with casing (18), the inside of casing (18) is provided with locking mechanism (39), locking mechanism (39) include stripper plate (30), reset spring (31), bullet piece (33), link up piece (35), card pearl (34), inserted block (37), one side fixedly connected with reset spring (31) of casing (18), one side fixedly connected with bullet piece (33) of reset spring (31), one side fixedly connected with stripper plate (30) of bullet piece (33), casing (18) and the inside that extends to casing (18) are run through to one side of stripper plate (30), slot (32) have been seted up to the bottom of casing (18) one side.

8. The folding riot shield according to claim 7, wherein: one side of linking up piece (35) and the bottom fixed connection of apron (9), the top and the bottom of linking up piece (35) all are provided with card pearl (34), the bottom fixedly connected with dog (38) of linking up piece (35), one side fixedly connected with inserted block (37) of dog (38), one side of dog (38) still is provided with back power spring (36), inserted block (37) and slot (32) looks adaptation.

9. The folding riot shield according to claim 8, wherein: both sides at mainboard (13) back top are provided with sight glass (2), equal fixedly connected with handle (4) in both sides of mainboard (13) back bottom, mainboard (13) positive both sides all are provided with flash light (16).

Technical Field

The invention relates to the technical field of riot shields, in particular to a folding type riot shield.

Background

An anti-riot shield is a commonly used defense apparatus for modern anti-riot military polices. The specific structure comprises a shield plate and a supporting plate. The shield plate is mostly convex arc or cambered surface rectangle, and the layer board passes through connecting piece fixed connection at the back of shield plate, on the layer board, is equipped with to detain area and handle, and the riot shield that the riot police used generally deals with the conflict of low grade such as crowd's disorder, can effectively block objects such as brick and tile, stone, rod glass bottle to strike and the sprint. The riot shield used by special police generally has the functions of bulletproof, shock wave prevention and strong light prevention. Although the riot shield appears transparent and looks fragile, in practice it is very strong and tough and not easily broken, and can withstand the crushing of small vehicles. The utility model can resist the knife thorn when facing the knife holder; can resist the shooting of light arms at short distance and has certain effect on the shock wave and the shrapnel of the grenade at short distance. In the advancing process, the first team member of the team often holds an anti-riot shield to provide shielding for the following team members, and the anti-riot shield is usually made of light materials such as polycarbonate, PC materials and glass fiber reinforced plastics. The anti-riot shield made of the high-quality PC board material has higher transparency, lighter weight, strong impact resistance, firmness and durability. Can resist the attack of small-caliber guns, projectiles and sharp objects, and the corrosion of acid drugs and the like, and has strong protective capability, firm installation and fixation, convenient operation and the like. It is not exaggerated that several untrained people holding the riot shield can subdue the terrorists of a hand-held weapon, so that the riot shield is an ideal protection and combat device for the riot police who are to often confront the criminal in a positive way.

Since most of the existing riot shields are integrated and have large volume, users often participate in fierce scenes to use the shields, the scenes are very complicated to use, and in this case, protective equipment with large volume and weight, such as the riot shields, is inapplicable because the protective equipment can obstruct the tactical actions of the users and consume the physical strength of the users, thereby affecting the tactical exertion of the users.

Disclosure of Invention

Technical problem to be solved

The anti-riot shield solves the problems of large volume and inconvenience in daily carrying and use.

Disclosure of Invention

In order to solve the technical problem, the embodiment of the invention adopts the following technical scheme: the utility model provides a foldable riot shield, includes the mainboard, the adjacent four sides of mainboard are provided with roof, sideboard and bottom plate, be provided with the driving piece on the mainboard, the driving piece is assembled and orders about roof, sideboard and bottom plate and can be the upset of level to perpendicular 90.

Preferably, the bottom of bottom plate is provided with the apron, rotate mutually through the driving piece between bottom plate and the apron and be connected, the driving piece is assembled and is ordered about the apron and can be the upset of level to perpendicular 90, and it has the apron to articulate through the hinge, the equal fixedly connected with shell in back of apron, roof, sideboard and bottom plate.

Preferably, the top and the bottom of the back of each of the two side plates are fixedly connected with connecting blocks, the top and the bottom of each of the two sides of the cover plate are fixedly connected with connecting shells, the connecting shells are matched with the connecting blocks, and the two sides of the back of the cover plate are fixedly connected with braces.

As preferred, the spout has been seted up at the back of mainboard, sliding connection has the slider in the spout, fixedly connected with linkage spring between the relative one side of slider and spout inner wall, the top of slider runs through the mainboard and extends to the outside of mainboard, the top fixedly connected with linkage piece and the locking piece of slider, linkage piece and locking piece and shell looks adaptation, the back fixedly connected with of linkage piece pushes away the button.

As preferred, the inside of mainboard is provided with link gear, link gear is including runner, latch, pinion rack, first fixture block, locking piece and linkage piece, the back of mainboard inner wall rotates and is connected with the runner, the surface of runner is provided with the latch, the equal first fixture block of fixedly connected with in one side of locking piece and linkage piece, the equal fixedly connected with pinion rack in rear side of locking piece and linkage piece one side, the tooth's socket has been seted up on the pinion rack, the tooth's socket meshes with the latch mutually, can drive four through the latch when applying a revolving force for the runner the pinion rack draws in simultaneously.

Preferably, the top of runner is provided with pressing means, pressing means includes the button, presses spring, second fixture block, the top fixedly connected with of runner presses the spring, the quantity of pressing the spring is four, the top fixedly connected with of pressing the spring button, the bottom fixedly connected with second fixture block of button, second fixture block and first fixture block looks adaptation.

Preferably, the both sides at the roof back are provided with the casing, the inside of casing is provided with locking mechanism, locking mechanism includes stripper plate, reset spring, bullet piece, links up piece, card pearl, inserted block, one side fixedly connected with reset spring of casing, one side fixedly connected with bullet piece of reset spring, one side fixedly connected with stripper plate of bullet piece, one side of stripper plate runs through the casing and extends to the inside of casing, the slot has been seted up to the bottom of casing one side.

Preferably, one side of the connecting block is fixedly connected with the bottom of the cover plate, clamping beads are arranged at the top and the bottom of the connecting block, a stop block is fixedly connected with the bottom of the connecting block, an inserting block is fixedly connected with one side of the stop block, a return spring is further arranged on one side of the stop block, and the inserting block is matched with the inserting groove.

Preferably, observation mirrors are arranged on two sides of the top of the back of the main board, handles are fixedly connected to two sides of the bottom of the back of the main board, and flash lamps are arranged on two sides of the front of the main board.

Compared with the prior art, the embodiment of the invention provides that the main board is provided with the pressing mechanism and the linkage mechanism, the pressing mechanism comprises the button, the pressing spring and the second fixture block, the pressing button can control the second fixture block to rapidly move downwards, the second fixture block can make the lock block and the linkage block which are connected on the main board in a sliding way rapidly spring outwards after moving downwards, the lock block and the linkage block are clamped into the shell after springing out to rapidly form the shield body, so that a user can rapidly use the shield to protect the user under emergency conditions and prevent the user from being injured, the linkage mechanism comprises the lock block, the linkage block, the rotating wheel, the latch and the toothed plate, the pressing button can control the lock block and the linkage block to spring outwards, the linkage mechanism can enable the user to rapidly fold and store the shield under the condition of no use, and the other three lock blocks can be simultaneously retracted only by moving the linkage block, therefore, the lock block and the linkage block can be retracted by the fastest and most convenient method, the trouble of retracting one by one and the recovery efficiency are avoided, most of the existing riot shields are integrated and have larger volume, the participation of users is often used in a fierce scene, the scene of use is very complicated, and protective equipment with larger volume and weight, such as the riot shields and the like, is inapplicable under the circumstance, the protective equipment can obstruct the tactical actions of the users and consume the physical power of the users, so the tactical performance of the users is influenced, the invention can well solve the problems of large volume, inconvenience in daily carrying and use of the riot shields, the flash lamp is also arranged on the mainboard, if someone wants to get close to the mainboard or encounter danger in use, the flash lamp can be opened by controlling the switch under the emergency condition, and the flash lamp can generate transient blindness, prevent someone from being close, protect self safety under the condition of not injuring others, still be provided with the braces on the apron, can carry the shield back of the body on the back through the braces after the shield is folded into the knapsack form, can carry explosion-proof shield conveniently at ordinary times and can also reduce the volume liberation user's of shield body both hands, still be provided with two sight glasses on the mainboard, sight glass person of facilitating the use conceals the external environment that also can be clear at the shield back.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

This document provides an overview of various implementations or examples of the technology described in this disclosure, and is not a comprehensive disclosure of the full scope or all features of the disclosed technology.

Drawings

FIG. 1 is a schematic front view of an external structure of a motherboard according to the present invention;

FIG. 2 is a rear view of the external structure of the motherboard according to the present invention;

FIG. 3 is a schematic view of the folded main board of the present invention;

FIG. 4 is a schematic diagram of the internal structure of the motherboard according to the present invention;

FIG. 5 is a schematic structural diagram of a pressing mechanism according to the present invention;

FIG. 6 is a schematic structural diagram of a linkage block of the present invention;

FIG. 7 is a schematic view of the internal structure of the locking mechanism of the present invention;

FIG. 8 is an enlarged view of the main board of the present invention.

In the figure: 1. a locking block; 2. an observation mirror; 3. a linkage mechanism; 4. a handle; 5. a linkage block; 6. a housing; 7. a base plate; 8. a harness; 9. a cover plate; 10. a connecting shell; 11. a linkage spring; 12. a push button; 13. a main board; 14. a side plate; 15. a top plate; 16. a flash lamp; 17. connecting blocks; 18. a housing; 19. a toothed plate; 20. a rotating wheel; 21. a first clamping block; 22. a button; 23. a pressing spring; 24. clamping teeth; 25. a second fixture block; 26. a tooth socket; 27. a slider; 28. a chute; 29. a pressing mechanism; 30. a pressing plate; 31. a return spring; 32. a slot; 33. a spring block; 34. clamping the beads; 35. a joining block; 36. a return spring; 37. inserting a block; 38. a stopper; 39. and a locking mechanism.

Detailed Description

So that the objects, technical solutions and advantages of the embodiments of the present disclosure will be more apparent, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings of the embodiments of the present disclosure. It is to be understood that the described embodiments are only a few embodiments of the present disclosure, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the disclosure without any inventive step, are within the scope of protection of the disclosure.

Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of the word "comprising" or "comprises", and the like, in this disclosure is intended to mean that the elements or items listed before that word, include the elements or items listed after that word, and their equivalents, without excluding other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may also include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

As shown in fig. 1 to 8, the folding type riot shield provided by the invention comprises a main board (13), wherein a top board 15, an edge board 14 and a bottom board 7 are arranged on four adjacent sides of the main board 13, and a driving piece is arranged on the main board 13 and is assembled to drive the top board 15, the edge board 14 and the bottom board 7 to turn over at 90 degrees from horizontal to vertical.

As shown in fig. 1, a cover plate 9 is arranged at the bottom of the bottom plate 7, the bottom plate 7 and the cover plate 9 are rotatably connected through a driving part, the driving part is assembled to drive the cover plate 9 to turn over by 90 degrees from horizontal to vertical, the cover plate 9 is hinged through a hinge, and the cover plate 9, the top plate 15, the side plate 14 and the back of the bottom plate 7 are all fixedly connected with the shell 6.

As shown in fig. 3, the top and the bottom of the back of the two side plates 14 are fixedly connected with the connecting block 17, the top and the bottom of the two sides of the cover plate 9 are fixedly connected with the connecting shell 10, the cover plate 9 drives the connecting shell 10 to move when being turned over, the connecting shell 10 can be moved out from the connecting block 17 after being moved, then the top plate 15, the two side plates 14 and the bottom plate 7 can be completely opened, the connecting shell 10 is matched with the connecting block 17, the two sides of the back of the cover plate 9 are fixedly connected with the straps 8, the shield body can be carried on the back of the body through the straps 8 when carrying the explosion-proof shield at ordinary times, the convenient-to-use person carries the shield daily, and the size of the shield body.

As shown in fig. 8, a sliding groove 28 is formed in the back surface of the main board 13, a sliding block 27 is slidably connected in the sliding groove 28, a linkage spring 11 is fixedly connected between one side of the sliding block 27 opposite to the inner wall of the sliding groove 28, the top of the sliding block 27 penetrates through the main board 13 and extends to the outside of the main board 13, a linkage block 5 and a locking block 1 are fixedly connected to the top of the sliding block 27, the linkage block 5 and the locking block 1 are adapted to the housing 6, and a push button 12 is fixedly connected to the back surface of the linkage block 5.

As shown in fig. 4, a linkage mechanism 3 is arranged inside the main board 13, the linkage mechanism 3 includes a rotating wheel 20, a latch 24, a toothed plate 19, a first clamping block 21, a locking block 1 and a linkage block 5, the rotating wheel 20 is rotatably connected to the back of the inner wall of the main board 13, the latch 24 is arranged on the surface of the rotating wheel 20, the first clamping block 21 is fixedly connected to one side of the locking block 1 and one side of the linkage block 5, the toothed plate 19 is fixedly connected to the rear side of one side of the locking block 1 and the linkage block 5, a tooth socket 26 is formed in the toothed plate 19, the tooth socket 26 is meshed with the latch 24, when a rotating force is applied to the rotating wheel 20, the four toothed plates 19 are driven to be folded simultaneously by the latch 24, when a folding shield needs to be accommodated again after use, a push button 12 arranged on the linkage block 5 is hooked by a hand to push the push button 12 to move upwards, the linkage block 5 drives the linkage block 5 to move upwards along a sliding groove 28, the runner 20 is driven to rotate through the cooperation of tooth's socket 26 and latch 24 when pinion rack 19 moves up, the runner 20 is rotatory to drive other three pinion racks 19 and moves, three pinion racks 19 drive three locking piece 1 and move, block the first fixture block 21 on locking piece 1 and linkage 5 again on the second fixture block 25 of button 22 bottom at last, also remove from the shell 6 when locking piece 1 blocks with linkage 5, then fold sideboard 14, roof 15, bottom plate 7 and apron 9 again.

As shown in fig. 5, a pressing mechanism 29 is disposed at the top of the wheel 20, the pressing mechanism 29 includes a button 22, a pressing spring 23, and a second fixture block 25, the pressing spring 23 is fixedly connected to the top of the wheel 20, the number of the pressing springs 23 is four, the button 22 is fixedly connected to the top of the pressing spring 23, the second fixture block 25 is fixedly connected to the bottom of the button 22, the second fixture block 25 is adapted to the first fixture block 21, the button 22 is pressed downward, the button 22 can drive the second fixture block 25 to move downward, the pressing spring 23 can be pressed while the button 22 moves downward, and the second fixture block 25 can be disengaged from the first fixture block 21 when moving downward. After the first fixture block 21 and the second fixture block 25 are separated from each other, the linkage spring 11 can push the locking block 1 and the linkage block 5 to move outwards along the sliding groove 28, the locking block 1 can be inserted into the shells 6 on the two side plates 14 and the top plate 15, the linkage block 5 can be instantly inserted into the shells 6 on the bottom plate 7 and the cover plate 9, the side plates 14, the top plate 15, the bottom plate 7 and the cover plate 9 are firmly fixed by the locking block 1 and the linkage block 5, and the shield body is formed, so that the locking block 1 and the linkage block 5 can be controlled to move together and quickly fix the shield body by pressing the button 22.

As shown in fig. 7, the housing 18 is disposed on two sides of the back of the top plate 15, the locking mechanism 39 is disposed inside the housing 18, the locking mechanism 39 includes a pressing plate 30, a return spring 31, a spring block 33, a connecting block 35, a clamping ball 34, and an insertion block 37, the return spring 31 is fixedly connected to one side of the housing 18, the spring block 33 is fixedly connected to one side of the return spring 31, the pressing plate 30 is fixedly connected to one side of the spring block 33, one side of the pressing plate 30 penetrates through the housing 18 and extends into the housing 18, and the insertion slot 32 is formed in the bottom of one side of the housing 18.

As shown in fig. 7, one side of the connecting block 35 is fixedly connected to the bottom of the cover plate 9, the top and the bottom of the connecting block 35 are provided with a clamping bead 34, the bottom of the connecting block 35 is fixedly connected with a stopper 38, one side of the stopper 38 is fixedly connected with an insert block 37, one side of the stopper 38 is further provided with a return spring 36, the insert block 37 is adapted to the slot 32, when the shield body is needed to be used, the shield body is taken down from the back, the main plate 13 is aligned to itself after being taken down, then the elastic blocks 33 outside the two shells 18 on the top of the top plate 15 are pushed, the elastic blocks 33 can drive the extrusion plate 30 to move when being moved to one side by external force, the elastic blocks 33 can drive the extrusion plate 30 to move and simultaneously extrude the return spring 31, the extrusion plate 30 can extrude the clamping bead 34 when moving to one side, the clamping bead 34 can contract towards the inside of the connecting block 35 after being extruded, the two clamping beads 34 can move from the limiting groove, when the clamping ball 34 moves out, the return spring 36 on the stop block 38 will eject the connecting block 35 out of the shell 18 by its own elasticity, and when both the connecting blocks 35 are ejected out of the shell 18, the cover plate 9 is turned downwards around the hinged position with the bottom plate 7.

As shown in fig. 1, both sides at mainboard 13 back top are provided with sight glass 2, sight glass 2 person of facilitating the use hides the external environment that also can be clearly seen at the shield back, the equal fixedly connected with handle 4 in both sides of mainboard 13 back bottom, the positive both sides of mainboard 13 all are provided with flash light 16, if someone wants to be close to mainboard 13 or meet more danger when using, can open flash light 16 through control switch under the urgent condition, flash light 16 can produce the short-lived blinding that causes, prevent someone from approaching, protect self safety under the condition of not injuring others.

The working principle and the using process of the invention are as follows: when the explosion-proof shield is carried at ordinary times, the shield body can be carried on the back through the braces 8, the shield body is convenient to carry daily, the size of the shield body is reduced, the hands of a user are liberated, when the explosion-proof shield is needed to be used, the shield body is taken down from the back, the main board 13 is aligned to the shield body after the shield body is taken down, then the elastic blocks 33 outside the two shells 18 at the top of the top plate 15 are pushed, the elastic blocks 33 drive the extrusion plate 30 to move when moving to one side, the elastic blocks 33 drive the extrusion plate 30 to move and simultaneously extrude the return springs 31, the extrusion plate 30 can extrude the clamping beads 34 when moving to one side, the clamping beads 34 can contract towards the inside of the connection blocks 35 after being extruded, the two clamping beads 34 can move out from the limit grooves in the shells 18 after contracting inwards, the return springs 36 on the stoppers 38 can eject the blocks 35 out of the shells 18 through self elasticity, after the two connection blocks 35 are ejected out of the shells 18, the cover plate 9 is turned over downwards at the position hinged with the bottom plate, the cover plate 9 drives the connecting shell 10 to move when being turned over, the connecting shell 10 can be moved out from the connecting block 17 after being moved, then the top plate 15, the two side plates 14 and the bottom plate 7 are all opened, the handle 4 is held by a hand after the five plate bodies are all opened to lift the main plate 13 obliquely upwards, the five plate bodies are all horizontally arranged with the main plate 13, finally, the four buttons 22 are pressed downwards by the palm, the buttons 22 can drive the second clamping block 25 to move downwards, the pressing spring 23 can be extruded when the buttons 22 move downwards, and the second clamping block 25 can be separated from the first clamping block 21 when moving downwards. After the first fixture block 21 and the second fixture block 25 are separated from each other, the linkage spring 11 pushes the lock block 1 and the linkage block 5 to move outwards along the sliding groove 28, the lock block 1 is inserted into the shells 6 on the two side plates 14 and the top plate 15, the linkage block 5 is instantly inserted into the shells 6 on the bottom plate 7 and the cover plate 9, the side plates 14, the top plate 15, the bottom plate 7 and the cover plate 9 are firmly fixed by the lock block 1 and the linkage block 5, and the shield body is formed, so that the lock block 1 and the linkage block 5 can be controlled to move together and quickly fix the shield body, the shield body is blocked on the front of a human body after being formed, observation can be carried out through the two observation mirrors 2 arranged on the main plate 13 when external conditions are observed, if an emergency condition occurs, the flash lamp 16 can be started by opening the switch, people close to the shield body can temporarily blind, a user can conveniently carry out next action, and when the folded shield needs to be stored again, the push button 12 arranged on the linkage block 5 is hooked by a hand, the push button 12 is pushed to move upwards, the push button 12 drives the linkage block 5 to move upwards along the sliding groove 28, the linkage block 5 drives the toothed plate 19 to move upwards, the toothed plate 19 moves upwards while driving the rotating wheel 20 to rotate through the matching of the toothed groove 26 and the clamping teeth 24, the rotating wheel 20 rotates to drive the other three toothed plates 19 to move, the three toothed plates 19 drive the three locking blocks 1 to move, finally, the locking blocks 1 and the first clamping blocks 21 on the linkage block 5 are clamped on the second clamping blocks 25 at the bottoms of the push buttons 22 again, the locking blocks 1 and the linkage block 5 are clamped while moving out of the shell 6, then the side plate 14, the top plate 15, the bottom plate 7 and the cover plate 9 are folded again, and finally, the connecting block 35 on the cover plate 9 is inserted into the shell 18 again to fix the cover plate 9.

The above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and the scope of the present invention is defined by the claims. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the present invention, and such modifications and equivalents should also be considered as falling within the scope of the present invention.