Bulletproof shield with window capable of being opened and closed and working method

Abstract

The invention provides a bulletproof shield with an opening and closing window and a working method, relates to the field of bulletproof shields, and aims to solve the problem that diverse observation and shooting requirements are difficult to consider due to unreasonable position arrangement of shooting holes and observation holes of existing bulletproof shields. The shielding range is adjusted by sliding the bulletproof window, reuse of the observation hole and the embrasure is achieved, inconvenience in aiming and observation caused by position separation of the observation hole and the embrasure in a traditional scheme is avoided, different from a full-open / full-closed mode of a traditional turnover baffle, the size of the embrasure can be adjusted according to needs, for example, only the width of a muzzle is exposed or an opening is larger; according to the bulletproof shield, the operation handle is located on the back side of the shield body, when a user holds the shield, unlocking, sliding adjustment, locking and other actions can be completed by holding the operation handle with one hand, operation from the enemy side is not needed, and the problem that a traditional bulletproof shield is split in observation and shooting functions is solved.

Description

Technical Field

[0001] The present invention relates to the field of bulletproof shields, and particularly to a bulletproof shield with an opening and closing window and a working method thereof. Background Art

[0002] When the shield body of a bulletproof shield is made of non-transparent material, an observation hole is generally opened on the shield body and a transparent observation window made of bulletproof glass is installed, so as to meet the observation requirements while ensuring the safety of the user. In order to ensure its strength, the transparent observation window of the bulletproof shield is mostly fixed on the shield body. To meet the counterattack requirements of the user, shooting positions are generally designed on the edge of the shield or on the shield body.

[0003] The shooting positions are distributed on the edge of the shield body or shooting holes are additionally opened. When the shooting hole is located on the edge of the shield body, part of the user's limbs will be outside the protection range of the shield body. When a shooting hole is opened away from the observation hole, the observation position and the shooting position deviate, making it inconvenient to alternate aiming and observation. There are also some ways in the prior art to combine and distribute the shooting holes and observation holes on the shield body, so that a baffle that rotates to open and close can simultaneously open the observation hole and the shooting hole, or simultaneously block the observation hole and the shooting hole. Since it uses a forward and backward flipping method for opening and closing, when shooting, in order to expose the shooting hole, the baffle must be fully opened. If it is opened partially, the baffle will also flip to the fully open state under its own weight, and it is impossible to adjust the opening degree as needed, and different observation and shooting requirements cannot be met; moreover, even if it can be partially opened, the baffle is in a movable state, and when the baffle is impacted from the front, it will cause the baffle to flip and close, with poor protection ability and difficult to meet the requirements. Summary of the Invention

[0004] The purpose of the present invention is to address the defects existing in the prior art, and provide a bulletproof shield with an opening and closing window and a working method thereof. By setting a window hole on the shield body and installing a bulletproof window, and sliding the bulletproof window to adjust the shielding range, the reuse of the observation hole and the shooting hole is realized, avoiding the inconvenience of aiming and observation caused by the separation of the two positions in the traditional scheme. The working state can be quickly switched. Different from the "fully open / fully closed" mode of the traditional flipping baffle, the size of the shooting hole can be adjusted as needed.

[0005] The first purpose of the present invention is to provide a bulletproof shield with an opening and closing window, adopting the following scheme:

[0006] A shield body, provided with a window hole, and a chute is arranged on the outer circle at one end of the window hole;

[0007] A bulletproof window, including bulletproof glass and a frame, the bulletproof glass is fixed on the frame, and the frame is slidably matched with the chute through a guide rail, so that the bulletproof window shields the window hole, and the shielding range of the window hole is adjusted by sliding, and the unshielded area is used as a shooting hole;

[0008] The locking assembly includes a locking pin slidably installed in the slide slot and an operating handle installed on the shield body. A limiting groove is provided on the guide rail for one end of the locking pin to penetrate into. One end of the operating handle is located on the side of the shield body away from the slide slot, and the other end passes through the shield body and is connected to the locking pin through a flexible cable, so that the sliding movement of the locking pin can be controlled by the operating handle from the side of the shield body away from the slide slot.

[0009] Furthermore, a handle is connected to the bulletproof window. The handle is located on a side of the bulletproof window close to the window hole and is located inside the window hole or passes through the window hole.

[0010] Furthermore, the window hole is a rectangular hole, a set of opposite sides of the window hole are distributed along the width direction of the shield body, the slide groove is distributed parallel to the width direction of the shield body, and the sliding direction of the guide rail relative to the slide groove is parallel to the width direction of the shield body.

[0011] Furthermore, the frame is distributed along the circumference of the bulletproof glass, and slide grooves are respectively arranged above and below the window hole, and the guide rails installed on the frame correspond to the slide grooves one by one to form a sliding fit.

[0012] Furthermore, the bulletproof glass is made of transparent material, and one side of the frame fits the shield body and can slide relatively.

[0013] Furthermore, the operating handle includes a turntable and a rotating shaft. The turntable is located on the side of the shield body away from the slide slot. The rotating shaft passes through the shield body and is connected to the flexible cable. The rotating shaft and the shield body are rotationally matched.

[0014] Furthermore, a rope threading hole is provided on the rotating shaft, the axial position of the rotating shaft is fixed relative to the shield body, the flexible rope is connected to the rope threading hole and wound around the rotating shaft, and the tangential direction of the flexible rope winding position is parallel to the sliding direction of the locking pin.

[0015] Furthermore, an elastic reset member is abutted between the locking pin and the slide slot to reset the locking pin to a state where it is inserted into the limiting slot. A plurality of limiting slots are arranged at intervals along the sliding direction of the guide rail to cooperate with the locking pin in a time-sharing manner to lock the shielding range of the bulletproof window on the window hole.

[0016] The second object of the present invention is to provide a working method of the bulletproof shield with opening and closing windows as described in the first object, comprising:

[0017] When only observation is performed, the bulletproof window is placed on the external force-bearing side, the bulletproof window completely covers the window hole, and observation is performed through the bulletproof glass;

[0018] When observation and shooting are required at the same time, the operating handle is controlled to unlock the locking pin, so that the bulletproof window can slide, so that the bulletproof window partially covers the window hole, and the uncovered position is used as a shooting hole.

[0019] Furthermore, after adjusting the position of the bulletproof window, the operating handle is controlled to restore the locking pin to lock the relative position of the bulletproof window and the shield body.

[0020] Compared with the prior art, the advantages and positive effects of the present invention are as follows:

[0021] Aiming at the problem that the unreasonable layout of the shooting holes and observation holes on the current bulletproof shield makes it difficult to balance the diverse observation and shooting requirements, by setting window holes on the shield body and installing bulletproof windows, and sliding the bulletproof windows to adjust the shielding range, the reuse of the observation holes and shooting holes is realized, avoiding the inconvenience of aiming and observation caused by the separation of the positions of the two in the traditional solution. It can quickly switch between the "full observation", "observation + shooting", and "full shooting" modes, which is different from the "fully open / fully closed" mode of the traditional flip baffle. The size of the shooting hole can be adjusted as needed, such as only exposing the width of the muzzle or a larger opening, to adapt to the concealment or firepower requirements in different scenarios. The operating handle is located on the back side of the shield body. When the user holds the shield, the unlocking, sliding adjustment, locking and other actions can be completed by holding the operating handle with one hand, without the need to operate from the enemy-facing side, breaking through the separation problem of the observation and shooting functions of the traditional bulletproof shield, and achieving the technical effects of "adjustable shielding range, reliable position locking, and convenient and safe operation", significantly improving the versatility and protection reliability of the bulletproof shield in actual combat.

[0022] The handle is directly set on the side of the bulletproof window close to the window hole and is located inside the window hole or passes through the window hole. The user can directly push and pull the handle through the operating side when holding the shield, and the sliding adjustment of the bulletproof window can be completed with one hand, without having to go around to the back side of the shield body for operation, greatly improving the reaction speed in actual combat. The long side of the rectangular window hole is distributed along the width direction (transverse direction) of the shield body, and the sliding direction is the same as the width direction of the shield body, so that the shooting hole can be flexibly adjusted along the transverse direction.

[0023] Chute grooves are respectively arranged above and below the window hole. The frame is slidably matched with the chute grooves through two sets of upper and lower guide rails to form a double-track guiding structure, which can effectively ensure the stability of the bulletproof window when sliding and can also ensure its stability when subjected to external impact, ensuring a smooth and reliable adjustment process.

[0024] The operating handle adopts a turntable and rotating shaft structure. By rotating the turntable, the rotating shaft winds a flexible cable, such as a steel wire rope, and then pulls the locking pin to slide. Compared with the traditional linear pulling handle, the rotation of the turntable can save effort through torque amplification, and the tangent of the winding position during rotation is parallel to the unlocking lifting direction of the locking pin, improving the control flexibility, and it can be easily operated even when wearing protective gloves. The axial position of the rotating shaft is fixed, and the flexible cable is wound around the rotating shaft. The telescopic amount of the locking pin can be accurately controlled by controlling the rotation angle of the turntable. Multiple limiting grooves are arranged at intervals on the guide rail, corresponding to different window shielding positions, such as fully closed, 1 / 3 open, 2 / 3 open, fully open, to achieve multi-gear locking and meet the fixed opening requirements in different tactical scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings forming a part of this invention are used to provide a further understanding of the invention. The schematic embodiments and descriptions thereof of the invention are used to explain the invention and do not constitute an improper limitation of the invention.

[0026] Figure 1 It is a schematic diagram of the enemy-facing side structure of a bulletproof shield with a window opening and closing in one or more embodiments of the present invention.

[0027] Figure 2 It is a schematic diagram of the operating side structure of a bulletproof shield with a window opening and closing in one or more embodiments of the present invention.

[0028] Figure 3 It is a schematic diagram of a bulletproof window in one or more embodiments of the present invention.

[0029] Figure 4 It is a schematic cross-sectional view of a bulletproof window in one or more embodiments of the present invention.

[0030] Figure 5 It is a schematic diagram of the combination of bulletproof glass and a frame in one or more embodiments of the present invention.

[0031] Figure 6 It is a schematic diagram of a locking pin in one or more embodiments of the present invention.

[0032] Figure 7 It is a schematic diagram of an operating handle in one or more embodiments of the present invention.

[0033] Wherein, 1, shield body; 2, window hole; 3, sliding groove; 4, locking assembly; 5, locking pin; 6, operating handle; 7, guide rail; 8, limiting groove; 9, handle; 10, pull ring; 11, bulletproof glass; 12, frame; 13, turntable; 14, rotating shaft; 15, threading hole; 16, elastic reset member; 17, positioning threaded sleeve. Detailed implementation manners

[0034] Embodiment 1

[0035] In a typical embodiment of the present invention, as Figures 1-7 shown, a bulletproof shield with a window opening and closing is provided.

[0036] When the shooting hole is located at the edge of the shield body, the user's limbs are easily exposed outside the protection range. Separately opening a shooting hole will cause the observation and shooting positions to deviate, making it inconvenient to alternate operations. The traditional flip baffle cannot adjust the opening degree as needed and is prone to closing when impacted, resulting in insufficient protection reliability and difficulty in meeting diverse observation and shooting requirements. Based on this, this embodiment provides a bulletproof shield with a window opening and closing. By setting a window hole on the shield body and installing a bulletproof window, the bulletproof window is slid to adjust the shielding range, realizing the reuse of the observation hole and the shooting hole, adjusting the size of the shooting area as needed, and meeting diverse observation and shooting requirements.

[0037] As shown Figures 1-7 in the figure, the bulletproof shield with an opening and closing window includes a shield body, a bulletproof window, and a locking component. The shield body is provided with a window hole, and a chute is arranged on the outer ring at one end thereof to provide a track basis for the sliding of the bulletproof window. The bulletproof window is composed of bulletproof glass and a frame, and the frame is slidably matched with the chute through a guide rail. By sliding the frame, the shielding range of the bulletproof window for the window hole can be adjusted, and the unshielded area is directly used as a shooting hole, realizing the integrated design of the observation hole and the shooting hole. The locking component includes a locking pin and an operating handle. The locking pin is slidably installed in the chute, and a limiting groove is arranged on the guide rail. One end of the locking pin can extend into the limiting groove to fix the position of the frame. The operating handle is located on the back side of the shield body and is connected to the locking pin through a flexible cable. The user pulls or releases the locking pin through the operating handle to lock or unlock the sliding state of the bulletproof window.

[0038] In the unlocked state, push the frame of the bulletproof window to slide along the chute to change its shielding area for the window hole. For example, when it is completely shielded, only observe through the bulletproof glass and the shooting hole is closed; when it is partially shielded, part of the window hole is exposed as the shooting hole, and observation and shooting can be carried out simultaneously; when it is completely unshielded, the shooting hole is fully open, which is suitable for emergency shooting scenarios. After adjusting to the target position, pull the locking pin through the operating handle to make it embed into the limiting groove of the guide rail to fix the position of the frame and prevent sliding or displacement due to impact.

[0039] By sliding to adjust the shielding range, the reuse of the observation hole and the shooting hole is realized, avoiding the inconvenience of aiming and observation caused by the separation of the positions of the two in the traditional scheme, and the "full observation", "observation + shooting", and "full shooting" modes can be quickly switched. Different from the "fully open / fully closed" mode of the traditional flip baffle, the size of the shooting hole can be adjusted as needed (such as only exposing the width of the muzzle or a larger opening) to adapt to the concealment or firepower requirements in different scenarios.

[0040] The shooting hole is integrated into the window hole, and there is no need to separately open a hole at the edge of the shield body, avoiding the user's limbs being exposed outside the protection range of the shield body and reducing the risk of being hit. The locking component mechanically locks the limiting groove and the locking pin, so that the bulletproof window remains in a fixed position during shooting or being impacted, avoiding the traditional baffle from flipping and closing due to its own weight or external force, and ensuring the continuity of protection.

[0041] As shown Figure 1 and Figure 2As shown in the figure, the operating handle is located on the back side of the shield body. When the user holds the shield, actions such as unlocking, sliding adjustment, and locking can be completed by holding the operating handle with one hand, without the need to release both hands from the shield, thus improving the combat response efficiency. It should be noted that one end of the operating handle is located inside the shield body away from the sliding groove, that is, close to the side where the user holds the shield, and the other end is connected to the locking pin on the outside through a flexible cable. The user does not need to expose their hands or limbs outside the shield body (the dangerous area). By only controlling the operating handle inside the shield body, the unlocking / locking action of the locking pin on the outside can be controlled, avoiding direct exposure to attacks or bullet threats and improving safety. The sliding guide rail and the locking component are both mechanical structures without complex electronic components, with high reliability, suitable for harsh environments, and low maintenance costs.

[0042] As Figure 3 and Figure 4 shown in the figure, a handle is connected to the bulletproof window. The handle is located on the side of the bulletproof window close to the window hole and is inside the window hole or passes through the window hole. The handle is directly set on the side of the bulletproof window close to the window hole and is inside the window hole or passes through the window hole. The user can directly operate the handle through the operating side when holding the shield, and the window can be slid and adjusted with one hand without having to go around to the back side of the shield body, greatly improving the reaction speed in actual combat.

[0043] For example, when holding the shield, the right hand holds the main handle, and the left hand can simultaneously quickly adjust the window opening through the handle to achieve a coherent action of "observing - adjusting the shooting hole - shooting". The handle is hidden inside the window hole or passes through the window hole. When the handle is inside the window hole, the risk of hooking caused by the traditional external handle protruding from the shield body surface is avoided, and at the same time, the appearance of the shield body is kept flat, improving the overall protection performance. When the handle passes through the window hole, it is convenient for operation.

[0044] As Figure 1 , Figure 2 shown in the figure, the window hole is a rectangular hole. One pair of opposite edges of the window hole are distributed along the width direction of the shield body, the sliding groove is distributed parallel to the width direction of the shield body, and the sliding direction of the guide rail relative to the sliding groove is parallel to the width direction of the shield body. The long side of the rectangular window hole is distributed along the width direction (horizontal direction) of the shield body, and the sliding direction is the same as the width direction of the shield body, enabling the shooting hole to be flexibly adjusted along the horizontal direction.

[0045] When covert shooting is required, the shooting hole can be adjusted to the left or right edge of the shield body, using the main body of the shield to block other parts of the body and reducing the exposed area; the horizontally long strip-shaped shooting hole is suitable for the horizontal movement and aiming of firearms, improving shooting flexibility.

[0046] The horizontal sliding mode makes the shielding area of the bulletproof window against the window hole change linearly. For example, during operation, the shooting hole is gradually exposed from left to right. Compared with the "0% / 100%" shielding of the traditional flip baffle, the size of the shooting hole can be accurately controlled, such as exposing different widths of 5 cm, 10 cm, etc., to meet the requirements of multiple scenarios such as micro-aiming, point shooting, and suppression shooting.

[0047] The frame is distributed along the circumference of the bulletproof glass, and slide grooves are provided above and below the window hole. The guide rails installed on the frame correspond to the slide grooves one by one to form a sliding fit, forming a double-track guide structure, which can effectively ensure the stability of the bulletproof window when sliding, and can also ensure its stability when impacted by external forces, ensuring a smooth and reliable adjustment process. The double-track structure increases the contact area between the frame and the shield body, and the force is more evenly applied. When a bullet or impact object hits the edge of the window, the impact force is dispersed to the main body of the shield through the upper and lower guide rails, reducing the risk of deformation or falling off of the frame and enhancing the overall protection performance.

[0048] The bulletproof glass is made of transparent material to ensure the transmittance and clarity during observation, avoiding the problem of limited field of view caused by the traditional non-transparent shield body that relies on observation holes. One side of the frame slides against the shield body to form a tight physical seal. On the one hand, it can transfer the force of the frame to the shield body to ensure the stability of the frame's support for the bulletproof glass. On the other hand, it can also prevent dust, rain or shrapnel from invading through the gap between the window and the shield body, improving the reliability of use in complex environments. The fitting sliding design makes the bulletproof window flush with the surface of the shield body, and it is difficult to directly observe the sliding gap from the outside, which can reduce the enemy's prediction of the location of the shooting hole and improve tactical concealment.

[0049] like Figure 1 , Figure 2 and Figure 7 As shown, the operating handle includes a turntable and a rotating shaft. The turntable is located on the side of the shield body away from the slide slot. The rotating shaft passes through the shield body and is connected to the flexible cable. The rotating shaft is provided with a rope threading hole. The axial position of the rotating shaft is fixed relative to the shield body. The flexible cable is connected to the rope threading hole and wound around the rotating shaft. The tangent direction of the flexible cable winding position is parallel to the sliding direction of the lock pin. The rotating shaft and the shield body are rotated together. The operating handle adopts a turntable + rotating shaft structure. The rotating turntable drives the rotating shaft to wind the flexible cable. The flexible cable can be a steel wire rope, etc., and then pulls the lock pin to slide. Compared with the traditional linear pull handle, the rotation of the turntable can save effort by amplifying the torque. It can be easily operated even with protective gloves, which is especially suitable for the effort-saving needs when holding a shield for a long time. In addition, when rotating, the tangent of the winding position is parallel to the unlocking and pulling direction of the lock pin, which improves the control flexibility and reduces the problem of jamming.

[0050] The axial position of the rotating shaft is fixed, and the flexible rope is wound around the rotating shaft. The extension and retraction of the locking pin can be accurately controlled by controlling the rotation angle of the turntable. An elastic reset member is abutted between the locking pin and the slide slot to reset the locking pin to the state of probing into the limit slot. The guide rail is arranged with multiple limit slots at intervals along its sliding direction to lock the blocking range of the bulletproof window on the window hole in a time-sharing manner with the locking pin. Multiple limit slots are arranged at intervals on the guide rail, corresponding to different window blocking positions, such as fully closed, 1 / 3 open, 2 / 3 open, and fully open, to achieve multi-gear locking to meet the fixed opening requirements in different tactical scenarios, such as a fixed small opening during sniping and a fixed large opening during assault.

[0051] An elastic reset member is provided between the locking pin and the sliding groove. The reset member can be a spring, a compression spring, etc. For example, Figure 6 As shown, a positioning threaded sleeve is slidably fitted outside the locking pin. The positioning threaded sleeve is installed in the sliding groove. Under normal conditions, the locking pin automatically extends into the limiting groove under the elastic force of the reset member, achieving instant stop and locking. When the position of the viewing window needs to be adjusted, only need to pull the locking pin out of the limiting groove by operating the handle against the elastic force, and it will automatically reset and lock after releasing the hand, avoiding the problem of continuous force application required for traditional manual locking and improving the operation efficiency.

[0052] The design of multiple limiting grooves enables the viewing window to be fixed at multiple preset positions, and each position corresponds to the mechanical engagement of the locking pin and the limiting groove. Even under bullet impact or severe shaking, the locking pin is not easily disengaged from the limiting groove. Compared with the gravity locking of traditional baffles or simple snap structures, the anti-external force interference ability is significantly enhanced, ensuring the stable position of the viewing window during shooting.

[0053] Integrate the three functions of observation, shooting, and protection into the same viewing window structure, reduce the component stacking of traditional solutions, and improve the compactness of the equipment; through multi-gear adjustment and flexible sliding, it is compatible with the requirements of multiple scenarios such as reconnaissance, precision shooting, and fire suppression, reducing the cost of replacing equipment in actual combat.

[0054] Embodiment 2

[0055] In another typical embodiment of the present invention, as Figures 1-7 shown, a working method of a bulletproof shield with an opening and closing viewing window is given, using the bulletproof shield with an opening and closing viewing window as in Embodiment 1.

[0056] A working method of a bulletproof shield with an opening and closing viewing window includes:

[0057] When only observing, make the bulletproof viewing window on the externally stressed side, and the bulletproof viewing window completely blocks the viewing window hole, and observe through the bulletproof glass;

[0058] When observing and having a shooting requirement at the same time, control the operating handle to unlock the locking pin, make the bulletproof viewing window able to slide, and make the bulletproof viewing window partially block the viewing window hole, and the unblocked position serves as the shooting hole.

[0059] After adjusting the position of the bulletproof viewing window, control the operating handle to restore the locking of the relative position of the bulletproof viewing window and the shield body by the locking pin.

[0060] Specifically, in combination with Figures 1-7 , in the observation mode, the bulletproof viewing window is located on the "externally stressed side" (i.e., the enemy-facing side of the shield body), completely blocking the viewing window hole, and only observing through the bulletproof glass. The viewing window hole is completely covered by the bulletproof glass, and bullets or impact objects cannot penetrate through the viewing window hole, ensuring that there are no protection loopholes on the front of the shield body.

[0061] When in the observation and shooting linkage mode, the bulletproof window partially obscures the window hole. Pull the locking pin through the operating handle to disengage it from the guide rail limiting groove, releasing the fixed state of the bulletproof window; push the handle (or directly push the bulletproof window), adjust the obscuring range according to the shooting requirements, and expose part of the window hole as the shooting hole; after adjusting to the target position, release the operating handle, and the locking pin will re-embed into the corresponding limiting groove under the action of the elastic reset member to fix the window position.

[0062] Without the need to replace equipment or change the shield-holding posture, it can quickly switch from "pure observation" to "observation + shooting" mode, shortening the reaction time. The traditional solution requires manually flipping the baffle or adjusting the position of the shooting hole, which takes a long time.

[0063] During partial obscuration, the bulletproof glass still covers most of the window holes, retaining some observation fields of view. At the same time, shooting through the unobscured area avoids the protection loopholes caused by "fully open shooting holes"; the positions of the shooting holes overlap with the observation fields of view, both located in the window hole area, solving the problem of "difficult aiming due to the deviation between the observation hole and the shooting hole" in the traditional solution, and enabling accurate shooting of "aiming directly when looking straight".

[0064] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A bulletproof shield with a window that can be opened and closed, characterized in that, include: The shield body is provided with a viewing window, and a sliding groove is provided on the outer circle of one end of the viewing window; The bulletproof window includes a bulletproof glass and a frame. The bulletproof glass is fixed on the frame. The frame slides with the guide rail and the slide groove to make the bulletproof window cover the window hole. The covering range of the window hole can be adjusted by sliding. The uncovered area is used as a shooting hole. The locking assembly includes a locking pin slidably installed in the slide slot and an operating handle installed on the shield body. A limiting groove is provided on the guide rail for one end of the locking pin to penetrate into. One end of the operating handle is located on the side of the shield body away from the slide slot, and the other end passes through the shield body and is connected to the locking pin through a flexible cable, so that the sliding movement of the locking pin can be controlled by the operating handle from the side of the shield body away from the slide slot.

2. The bulletproof shield with a window opening and closing as claimed in claim 1, wherein, The bulletproof window is connected with a handle, which is located on the side of the bulletproof window close to the window hole and is located inside the window hole or passes through the window hole.

3. The bulletproof shield with a window opening and closing as claimed in claim 1 or 2, characterized in that, The viewing window hole is a rectangular hole, a set of opposite edges of the viewing window hole are distributed along the width direction of the shield body, the slide groove is distributed parallel to the width direction of the shield body, and the sliding direction of the guide rail relative to the slide groove is parallel to the width direction of the shield body.

4. The bulletproof shield with a window opening and closing as claimed in claim 3, wherein The frame is distributed along the circumference of the bulletproof glass, and slide grooves are respectively arranged above and below the window hole. The guide rails installed on the frame correspond to the slide grooves one by one to form a sliding fit.

5. The bulletproof shield with a window opening and closing as claimed in claim 1, characterized in that, The bulletproof glass is made of transparent material, and one side of the frame fits the shield body and can slide relatively.

6. The bulletproof shield with a window opening and closing as claimed in claim 1, wherein, The operating handle comprises a rotating disk and a rotating shaft. The rotating disk is located at a side of the shield body away from the slide slot. The rotating shaft passes through the shield body and is connected to a flexible cable. The rotating shaft and the shield body are rotationally matched.

7. The bulletproof shield with a window opening and closing as claimed in claim 6, wherein The rotating shaft is provided with a rope threading hole, the axial position of the rotating shaft is fixed relative to the shield body, the flexible rope is connected to the rope threading hole and wound around the rotating shaft, and the tangential direction of the flexible rope winding position is parallel to the sliding direction of the locking pin.

8. The bulletproof shield with a window opening and closing as claimed in claim 1, characterized in that, An elastic reset member is abutted between the locking pin and the slide slot to reset the locking pin to a state where the locking pin is inserted into the limiting slot. A plurality of limiting slots are arranged at intervals along the sliding direction of the guide rail to cooperate with the locking pin in a time-sharing manner to lock the shielding range of the bulletproof window on the window hole.

9. A working method of a bulletproof shield with an opening and closing window, which utilizes the bulletproof shield with an opening and closing window as described in any one of claims 1-8, characterized in that, include: When only observation is performed, the bulletproof window is placed on the external force-bearing side, the bulletproof window completely covers the window hole, and observation is performed through the bulletproof glass; When observation and shooting are required at the same time, the operating handle is controlled to unlock the locking pin, so that the bulletproof window can slide, so that the bulletproof window partially covers the window hole, and the uncovered position is used as a shooting hole.

10. The working method of the bulletproof shield with a window opening and closing as described in claim 9, characterized in that, After adjusting the position of the bulletproof window, the operating handle is controlled to restore the locking pin to lock the relative position of the bulletproof window and the shield body.

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