A bulletproof window system

Abstract

The present invention discloses a bulletproof window system, which relates to the technical field of building doors and windows, and comprises a window frame and a window sash, wherein the window frame and the window sash are rotatably connected via an axial rotation mechanism, wherein the axial rotation mechanism comprises: a suspension component, comprising an installation cavity opened at a position above a frame opening of the window frame, wherein a hanging beam unit is arranged in the installation cavity; and an axial rotation component, comprising a rotating tube rotatably installed at the bottom of the installation cavity, wherein a first connecting column fixed to the window sash is movably inserted in the rotating tube, wherein the connecting column and the hanging beam unit are connected via a connecting rope, and a second connecting column rotatably installed to the window frame is fixed at the bottom of the window sash. The present invention rotatably installs the window sash on the window frame via the axial rotation mechanism, and under the suspension action of the connecting rope, the center of gravity of the window sash when opened and closed is located on the frame opening surface of the window frame, and no additional power-assisting parts are required, thereby saving manpower and making the entire bulletproof window system appear simpler in appearance.

Description

Technical Field

[0001] The invention relates to the technical field of building doors and windows, and in particular to a bulletproof window system. Background Art

[0002] Bulletproof windows, also known as bulletproof safety windows, are windows with specific protective functions. Bulletproof windows can mainly absorb and dissipate the impact force of bullets and prevent bullets and fragments from penetrating, thereby effectively protecting the safety of people and materials inside the window.

[0003] The existing Chinese patent publication number is: CN206917539U, and the name of the patent is "A kind of thermal insulation aluminum alloy bulletproof window". The patent includes "several components, the components include an outdoor part, an indoor part and an intermediate connecting part, the components are connected by bulletproof glass, the outdoor part includes a window frame, the window frame is provided with a window sash and a middle stile, the middle stile is connected to the window sash, and the bulletproof glass is fixed in the window frame and the window sash by a glass pressing line;

[0004] However, the window sashes of existing bulletproof windows are relatively thick and heavy, which makes it inconvenient to open and close the window sashes. A common solution is to add auxiliary components (such as hydraulic support rods or electric telescopic rods) to assist in opening and closing the window sashes. However, the disadvantage of using auxiliary components is that they occupy the window sash space and even require additional wiring, which makes the entire bulletproof window system look more complicated. Therefore, we propose a bulletproof window system. Summary of the invention

[0005] The object of the present invention is to provide a bulletproof window system to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A bulletproof window system includes a window frame and a window sash, wherein the window frame and the window sash are rotationally connected via a shaft rotation mechanism, and the shaft rotation mechanism includes:

[0008] The suspension assembly comprises an installation cavity opened above the frame opening of the window frame, wherein a hanging beam unit is arranged in the installation cavity;

[0009] The shaft rotation assembly includes a rotating tube rotatably installed at the bottom of the installation cavity, a first connecting column fixed to the window sash is movably inserted in the rotating tube, the connecting column is connected to the hanging beam unit by a connecting rope, and a second connecting column rotatably installed with the window frame is fixed at the bottom of the window sash.

[0010] Preferably, a limiting assembly is further provided between the window frame and the window sash, the limiting assembly comprising a lock body unit mounted on the window frame and a lock tongue unit mounted on the window sash, the lock tongue unit having an avoidance position and an extended position, the lock tongue unit being able to form a locking state with the lock body unit in the extended position, thereby limiting the movement of the window sash in the window frame.

[0011] Preferably, a shaft rod is rotatably installed in the installation cavity, cam units supporting the hanging beam unit are fixed at both ends of the shaft rod, a worm gear unit is fixed in the middle of the shaft rod, and a worm helix that meshes with the worm gear unit is opened on the tube body of the rotating tube located in the installation cavity.

[0012] Preferably, a first end face ratchet ring is fixed to the inner bottom wall of the rotating tube, and a second end face ratchet ring installed with the first connecting column is provided above the first end face ratchet ring. When the first end face ratchet ring is engaged with the second end face ratchet ring, the first connecting column can drive the rotating tube in the forward rotation.

[0013] Preferably, the first connecting column includes a column body, and a plurality of evenly distributed track grooves are opened on the outer side of the column body, each of the track grooves includes a vertical groove, one end of the vertical groove is connected to a spiral groove connected to the top of the column body, and each of the track grooves is slidably adapted to be fixed to the inner wall of the ratchet ring on the second end face.

[0014] Preferably, the installation cavity is a rectangular cavity, and thickened steel plates are fixed to the walls of the installation cavity.

[0015] Preferably, the hanging beam unit comprises two diagonal bracing beams, the upward ends of the two diagonal bracing beams are connected and fixed to each other to form a raised frame structure, and a plurality of auxiliary supporting plates are fixed between the two diagonal bracing beams and the wall surface of the installation cavity.

[0016] Preferably, a filling space is formed between the auxiliary support plate and the thickened steel plate on each of the diagonal support beams, and the filling space is filled with buffer sand.

[0017] Preferably, a mounting cover capable of being matched with the cam unit is fixed on the bottom end of the diagonal support beam, two first support rollers in contact with the cam unit are rotatably mounted in the mounting cover, and a second support roller rotatably mounted on the bottom surface of the mounting cavity is provided directly below each cam unit.

[0018] Preferably, the interior of the installation cavity and the inner top of the window frame are both provided with a limiting ring fixed to the rotating tube, and a plurality of evenly distributed rolling wheels are movably mounted on the ring body of the limiting ring.

[0019] In the above technical scheme, the present invention provides a bulletproof window system, which rotates and installs the window sash on the window frame through an axial rotation mechanism. Under the suspension effect of the connecting rope, the center of gravity of the window sash when opening and closing is located on the frame surface where the window frame is located, which is beneficial to keep the gravity of the window sash always evenly distributed, while reducing the rotational resistance of the window sash during the opening and closing process. There is no need to set up additional power-assisting parts, which saves manpower, makes the exterior of the entire bulletproof window system appear simpler, facilitates the opening and closing of the window sash, is beneficial to air circulation, has a simple structure, and is highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0021] Figure 1 It is an overall schematic diagram of a bulletproof window system of the present invention;

[0022] Figure 2 It is a front cross-sectional schematic diagram of a bulletproof window system of the present invention;

[0023] Figure 3 A schematic diagram of a window sash frame of a bulletproof window system of the present invention;

[0024] Figure 4 A schematic cross-sectional view of an installation cavity of a bulletproof window system of the present invention;

[0025] Figure 5 For the present invention Figure 4 The enlarged schematic diagram at A in the middle;

[0026] Figure 6 For the present invention Figure 4 The enlarged schematic diagram of point B in the middle;

[0027] Figure 7 This is a schematic diagram of the meshing of a turbine unit and a worm helix of a bulletproof window system of the present invention:

[0028] Figure 8 This is a schematic diagram of the structure of the first connecting column of a bulletproof window system of the present invention:

[0029] Fig. 9 A schematic cross-sectional view of a track groove of a bulletproof window system of the present invention:

[0030] Fig.10 This is a schematic diagram of a window frame structure of a bulletproof window system of the present invention:

[0031] Fig.11This is a schematic diagram of a lock unit of a bulletproof window system of the present invention on a window frame:

[0032] Fig.12 For the present invention Fig.11 Enlarged diagram of point C in the middle:

[0033] Fig.13 This is a cross-sectional schematic diagram of an installation box of a bulletproof window system of the present invention:

[0034] Fig.14 This is a schematic diagram of the groove portion of a bulletproof window system of the present invention below the installation box:

[0035] Fig.15 A schematic diagram of the cross-sectional distribution of glass plates of a bullet-proof window system of the present invention on a base plate;

[0036] Fig.16 This is an external schematic diagram of a glass plate on a base plate of a bulletproof window system of the present invention.

[0037] Description of reference numerals:

[0038] 1. Window frame; 2. Window sash; 2.1. Bulletproof glass plate; 2.2. Window sash frame; 2.21. Bottom plate; 2.22. Limiting frame; 2.23. Semi-column; 2.24. Rope threading hole; 3. Suspension assembly; 3.1. Installation cavity; 3.2. Hanging beam unit; 3.21. Diagonal support beam; 3.22. Auxiliary support plate; 3.23. Installation cover; 3.24. First support roller; 3.25. Second support roller; 3.26. Filling space; 3.3. Shaft rod; 3.4. Cam unit; 3.5. Worm gear unit; 3.6. Worm helix; 4. Shaft rotation assembly; 4.1. Rotating tube; 4.2. First connecting column; 4.21. Column; 4.22. Track groove; 4.221 , vertical groove; 4.222, spiral groove; 4.3, connecting rope; 4.4, second connecting column; 5, limiting assembly; 5.1, lock body unit; 5.11, installation box; 5.12, bottom plate; 5.13, groove part; 5.14, blind assembly; 5.15, plug interface; 5.16, glass plate; 5.2, lock tongue unit; 5.21, track groove; 5.22, track rod; 5.23, sliding block; 5.24, shaft column; 5.25, through-hole; 5.26, tooth groove part; 5.27, rack; 6, first end face ratchet ring; 7, second end face ratchet ring; 8, limiting ring; 9, rolling wheel; 10, handle bar; 11, worm wheel body; 12, worm body. DETAILED DESCRIPTION

[0039] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0040] See also Figure 1-16The embodiment of the present invention provides a bulletproof window system, comprising a window frame 1 and a window sash 2, wherein the window sash 2 has an open position and a closed position on the window frame 1. When the window sash surface of the window sash 2 is blocked with the frame opening surface of the window frame 1, the window sash 2 is in the closed position on the window frame 1. The window frame 1 and the window sash 2 are rotationally connected via a shaft rotation mechanism, and the shaft rotation mechanism comprises:

[0041] The suspension assembly 3 comprises a mounting cavity 3.1 formed above the frame opening of the window frame 1, wherein a hanging beam unit 3.2 is arranged in the mounting cavity 3.1;

[0042] The shaft rotation assembly 4 includes a rotating tube 4.1 rotatably mounted at the bottom of the installation cavity 3.1. The rotating tube 4.1 is located in the middle of the installation cavity 3.1. The axis of the rotating tube 4.1 is perpendicular to the horizontal plane. The upper end of the rotating tube 4.1 extends into the installation cavity 3.1. The lower end surface of the rotating tube 4.1 is flush with the inner top wall of the window frame 1. A first connecting column 4.2 fixed to the window sash 2 is movably inserted in the rotating tube 4.1. The axis of the first connecting column 4.2 is perpendicular to the horizontal plane. The axis center lines of the rotating tube 4.1 coincide with each other, and the first connecting column 4.2 is connected to the hanging beam unit 3.2 by a connecting rope 4.3. The connecting rope 4.3 can be a rope body with strong tensile strength such as a chain or a steel wire rope, so that the window sash 2 is in a suspended state in the window frame 1, thereby reducing the pressure of the window sash 2 on the bottom of the window frame 1. At the same time, when the window sash 2 is opened, it is also helpful to avoid the situation where the extrusion force is concentrated due to the reduction of the contact area between the bottom of the window sash 2 and the window frame 1. The bottom of the window sash 2 is fixed with a second connecting column 4.4 that is rotatably mounted with the window frame 1. The axis center line of the second connecting column 4.4 coincides with the extended line of the axis center line of the first connecting column 4.2. The second connecting column 4.4 serves as a limit for the bottom of the window sash 2 on the horizontal plane;

[0043] In actual use, by pushing one side of the window sash 2, for example, when the window sash 2 is in a closed position on the window frame 1, the right side of the window sash 2 is pushed by the indoor position, so that the right side of the window sash 2 is deflected toward the outside, and the left side of the window sash 2 is deflected toward the indoor. At this time, the window sash 2 is in an open position on the window frame 1. Similarly, when the window sash 2 is switched to a closed position on the window frame 1, the above operation can be reversed. The whole operation process is simple, and the center of gravity of the window sash when opening and closing is located on the frame mouth surface where the window frame is located, which is conducive to keeping the gravity of the window sash evenly distributed at all times, while reducing the rotational resistance of the window sash during the opening and closing process. There is no need to set up additional power-assisting parts, which saves manpower and makes the exterior of the entire bulletproof window system appear relatively simple, which is convenient for opening and closing the window sash, and is conducive to air circulation. It has a simple structure and is highly practical.

[0044] In another embodiment provided by the present invention, a limiting assembly 5 is further provided between the window frame 1 and the window sash 2. The limiting assembly 5 includes a lock body unit 5.1 installed on the window frame 1 and a lock tongue unit 5.2 installed on the window sash 2. The lock tongue unit 5.2 has an avoidance position and an extended position. The lock tongue unit 5.2 can form a locking state with the lock body unit 5.1 in the extended position, thereby limiting the movement of the window sash 2 in the window frame 1.

[0045] Specifically, the lock body unit 5.1 includes an installation box 5.11 installed on the outdoor surface of the window frame 1, the bottom of the installation box 5.11 is in an open state, a bottom plate 5.12 is inserted into the bottom of the installation box 5.11, and the bottom opening surface of the installation box 5.11 and the bottom surface of the bottom plate 5.12 form a long strip groove portion 5.13;

[0046] The lock tongue unit 5.2 comprises a track groove 5.21 provided at the top of the window sash 2, a track rod 5.22 is rotatably mounted in the length direction of the track groove 5.21, a sliding block 5.23 is slidably adapted in the track groove 5.21, a shaft column 5.24 slidably adapted to the groove portion 5.13 is rotatably mounted on the top of the sliding block 5.23, the shaft column 5.24 can slide freely in the groove portion 5.13, and a plurality of moving balls are movably mounted on the sliding block 5.23, thereby reducing the sliding block 5.23 in the track groove 5.2. 1, a through hole 5.25 is provided on the upper side of the sliding block 5.23 for the track rod 5.22 to movably pass through, a tooth groove portion 5.26 is provided on the inner side wall of the through hole 5.25, a rack 5.27 capable of engaging with the tooth groove portion 5.26 is provided on one side of the rod body of the track rod 5.22, and the track rod 5.22 has two positions in the axial direction, namely a locking position in which the rack 5.27 is engaged with the tooth groove portion 5.26, and an unlocking position in which the rack 5.27 is separated from the tooth groove portion 5.26;

[0047] A handle bar 10 is vertically mounted on one side of the indoor surface of the window sash 2, and the top of the handle bar 10 is inserted into one end of the track groove 5.21. A worm wheel 11 is fixed on the rod body of the track rod 5.22, and a worm wheel 12 fixed to the handle bar 10 is meshed on the worm wheel 11.

[0048] In actual use, by rotating the handle bar 10, for example, rotating the handle bar 10 counterclockwise by 90 degrees, the track bar 5.22 is switched from the locked position where the rack 5.27 is engaged with the tooth groove portion 5.26 to the unlocked position where the rack 5.27 is separated from the tooth groove portion 5.26 under the meshing rotation of the worm wheel body 11 and the worm body 12, and the locking state of the limit assembly is released. Then, during the opening process of the window sash 2, while the sliding block 5.23 moves along the track groove 5.21, the shaft column 5.24 can also slide in the groove portion 5.13. When the window sash 2 is opened to a specified position, for example, the handle bar 10 is rotated 90 degrees clockwise. At this time, under the meshing rotation of the worm wheel body 11 and the worm body 12, the track bar 5.22 is switched from the unlocking position where the rack 5.27 and the tooth groove part 5.26 are separated to the locking position where the rack 5.27 and the tooth groove part 5.26 are meshed. At this time, the locking state of the limit assembly is restored, thereby limiting the movement of the window sash 2 in the window frame 1. Similarly, whenever the window sash 2 needs to be moved, the above operation can be repeated to achieve locking and unlocking of the window sash 2, which is simple and convenient to operate.

[0049] It should be particularly noted that when the window sash 2 is in a closed state, due to the connection between the lock body unit 5.1 and the lock tongue unit 5.2, there is a certain angle between the window sash 2 and the window surface of the window frame 1. When a high-speed object hits the window sash 2, for example, when a bullet is shot at the window sash 2, there is a certain angle between the window sash 2 and the bullet, which helps to cause the bullet to deflect when it contacts the window sash 2, changing the direction of the force, which helps to unload the impact force of the bullet and alleviate the impact force on the window sash 2.

[0050] In another embodiment provided by the present invention, a bottom plate 5.12 is provided with a plurality of evenly distributed plug-in ports 5.15 on the side of the installation box 5.11, a glass plate 5.16 is plugged into the plug-in port 5.15, the glass plate 5.16 is an ordinary glass plate, both ends of the glass plate 5.16 are fixed to the installation box 5.11, the glass plate 5.16 limits the bottom plate 5.12 in the installation box 5.11, the plate surface of the glass plate 5.16 is perpendicular to the horizontal plane, the angle between the plate surface of the glass plate 5.16 and the frame opening surface of the window frame 1 is an acute angle, the glass plate 5.16 can be broken when subjected to a high-speed impact, a venetian blind assembly 5.14 is stacked in the installation box 5.11, the blades of the venetian blind assembly 5.14 are preferably metal sheets, one end of the ladder rope of the venetian blind assembly 5.14 is fixed to the inner top of the installation box 5.11, and the bottom of the venetian blind assembly 5.14 is supported by the bottom plate 5.12;

[0051] In actual use, when hit by a high-speed object, once the glass plate 5.16 is broken, the glass plate 5.16 loses its support force on the bottom plate 5.12 in the installation box 5.11, so that the bottom plate 5.12 is separated from the bottom of the installation box 5.11 under the action of gravity. When the bottom plate 5.12 is falling, the blind assembly 5.14 is unfolded outside the window frame 1, which not only shields the indoor view from the outside, but also increases the protection strength of the window sash 2.

[0052] In addition, it should be particularly noted that when the bottom plate 5.12 falls, if the window sash 2 is in the open state, the top of the window sash 2 extending outdoors supports the bottom end of the bottom plate 5.12, thereby causing the end of the bottom plate 5.12 away from the window sash 2 to fall downward. During this process, when the bottom plate 5.12 falls downward to a certain angle, the bottom plate 5.12 is in a sideways collapse state, and the shaft column 5.24 is completely separated from the groove portion 5.13 and no longer plays a limiting role. At this time, the contact position between the bottom plate 5.12 and the top of the window sash 2 is also transferred to the outer side surface of the top of the window sash 2. The component force of the gravity of the bottom plate 5.12 provides a driving force for the movement of the window sash 2 toward the window frame 1, which is conducive to switching the window sash 2 in the open state to the closed state.

[0053] In another embodiment provided by the present invention, a shaft rod 3.3 is rotatably installed in the installation cavity 3.1, and the length direction line of the shaft rod 3.3 is parallel to the horizontal plane. Cam units 3.4 supported by the hanging beam unit 3.2 are fixed to both ends of the shaft body of the shaft rod 3.3, and a worm gear unit 3.5 is fixed to the middle of the shaft rod 3.3. A worm helix 3.6 meshing with the worm gear unit 3.5 is provided on the tube body of the rotating tube 4.1 located in the installation cavity 3.1. In actual use, when the rotating tube 4.1 rotates forward, At this time, the worm helix 3.6 is driven in meshing with the worm gear unit 3.5, so that the shaft rod 3.3 drives the worm gear unit 3.5 to deflect, so that the protruding end of the cam of the cam unit 3.4 is closer to the hanging beam unit 3.2, so that the height of the hanging beam unit 3.2 in the installation cavity 3.1 is increased, and then the suspension height of the window sash 2 is increased through the connecting rope 4.3, thereby compensating for the length stretching deformation of the connecting rope 4.3 caused by long-term pulling, and keeping the window sash 2 at a preset suspension height position.

[0054] In another embodiment provided by the present invention, a first end face ratchet ring 6 is fixed to the inner bottom wall of the rotating tube 4.1, and a second end face ratchet ring 7 installed with the first connecting column 4.2 is provided above the first end face ratchet ring 6. When the first end face ratchet ring 6 is in meshing contact with the second end face ratchet ring 7, the first connecting column 4.2 can drive the rotating tube 4.1 in forward rotation;

[0055] Specifically, the first connecting column 4.2 includes a column 4.21, and a plurality of evenly distributed track grooves 4.22 are opened on the outer side of the column 4.21, and each track groove 4.22 includes a vertical groove 4.221, and the length direction line of the vertical groove 4.221 is perpendicular to the horizontal plane, and one end of the vertical groove 4.221 is connected to a spiral groove 4.222 connected to the top of the column 4.21, and each track groove 4.22 is slidably adapted to be fixed with a slider fixed to the inner wall surface of the second end face ratchet ring 7; wherein the installation cavity 3.1 is a rectangular cavity, and the wall surface of the installation cavity 3.1 is fixed with a thickened steel plate;

[0056] In actual use, when the window sash 2 is at a preset suspension height position, the slider is at the bottom of the vertical groove 4.221, the first end face ratchet ring 6 and the second end face ratchet ring 7 are in a separated state, and the second end face ratchet ring 7 is unable to engage and drive the first end face ratchet ring 6 during the rotation of the column 4.21;

[0057] When the window sash 2 is lower than the preset hanging height position, the first end face ratchet ring 6 and the second end face ratchet ring 7 are in contact and meshing, so that the second end face ratchet ring 7 engages and drives the first end face ratchet ring 6 during the positive rotation of the column 4.21. Specifically, for example, when the window sash 2 is opened, the second end face ratchet ring 7 engages and drives the first end face ratchet ring 6 during the positive rotation of the column 4.21, so that the rotating tube 4.1 rotates forward, so that the window sash 2 is at the preset hanging height position;

[0058] It should be particularly noted that when the window sash 2 is in the process of opening, if the rising displacement of the window sash 2 has not yet reached the preset suspension height position, then when the window sash 2 is in the process of closing, that is, the second end face ratchet ring 7 rotates in the opposite direction along with the main body of the column 4.21, the ratchet bevel portion on the second end face ratchet ring 7 slides in contact with the ratchet bevel portion on the first end face ratchet ring 6, and at the same time, the second end face ratchet ring 7 moves upward along the axial direction of the column 4.21, thereby avoiding interference between the second end face ratchet ring 7 and the first end face ratchet ring 6 during the reverse rotation of the main body of the column 4.21.

[0059] In another embodiment provided by the present invention, the window sash 2 includes a bulletproof glass plate 2.1 and a window sash frame 2.2 for covering and clamping the edge of the bulletproof glass plate 2.1, the window sash frame 2.2 includes a bottom plate 2.21 for supporting the bottom of the bulletproof glass plate 2.1, and both side edges of the bottom plate 2.21 are hinged with a limit frame 2.22 parallel to the plate surface of the bulletproof glass plate 2.1, and the frame contour line of the limit frame 2.22 can cover the edge of the bulletproof glass plate 2.1, and a semi-cylinder 2.23 is fixed to the middle of the top of the limit frame 2.22, and the cross-section of the semi-cylinder 2.23 is semicircular. When the limit frame 2.22 is in a clamping state for the bulletproof glass plate 2.1 on the bottom plate 2.21, the frame mouth surface of the limit frame 2.22 in this state is parallel to the bulletproof glass plate 2.1. At the same time, the semi-cylinders 2.23 on the two limit frames 2.22 are spliced ​​together to form a column 4.21. When the second end face ratchet ring 7 is sleeved and installed on the column 4.21, the second end face ratchet ring 7 locks and limits the limit frame 2.22 in the clamped state, thereby preventing the two limit frames 2.22 from separating. In addition, a rope threading hole 2.24 is opened on the side of each semi-cylinder 2.23. When the two semi-cylinders 2.23 are spliced ​​and merged into one column 4.21, the axis lines of the rope threading holes 2.24 on the two semi-cylinders 2.23 are on the same straight line, and then the connecting rope 4.3 is passed through the rope threading hole 2.24 to lock it, thereby effectively fixing the bulletproof glass plate 2.1 and strengthening the effect that the bulletproof glass plate 2.1 will not collapse from the limit frame 2.22 even if it is broken.

[0060] In another embodiment provided by the present invention, the hanging beam unit 3.2 includes two diagonal bracing beams 3.21, the upward ends of the two diagonal bracing beams 3.21 are fixedly connected to each other to form a raised frame structure, the angle between the upward ends of the two diagonal bracing beams 3.21 and the horizontal plane is 30 degrees to 45 degrees, and a plurality of auxiliary support plates 3.22 are fixed between the two diagonal bracing beams 3.21 and the wall surface of the installation cavity 3.1, thereby increasing the supporting strength of the diagonal bracing beams 3.21;

[0061] Furthermore, a filling space 3.26 is formed between the auxiliary support plate 3.22 and the thickened steel plate on each diagonal bracing beam 3.21, and the filling space 3.26 is filled with buffer sand to increase the anti-puncture effect. In addition, a mounting cover 3.23 capable of being matched with the cam unit 3.4 is fixed to the bottom end of the diagonal bracing beam 3.21, and two first support rollers 3.24 in contact with the cam unit 3.4 are rotatably mounted in the mounting cover 3.23, and a second support roller 3.25 rotatably mounted on the bottom surface of the mounting cavity 3.1 is provided directly below each cam unit 3.4, thereby ensuring good support stability between the cam unit 3.4 and the diagonal bracing beam 3.21.

[0062] In another embodiment provided by the present invention, the interior of the installation cavity 3.1 and the inner top of the window frame 1 are provided with a limit ring 8 fixed to the rotating tube 4.1, the ring mouth surface of the limit ring 8 is parallel to the horizontal plane, and a plurality of evenly distributed rolling wheels 9 are movably installed on the ring body of the limit ring 8, and the rolling wheels 9 can reduce the rotational resistance when the limit ring 8 rotates.

[0063] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A bulletproof window system, comprising a window frame (1) and a window sash (2), characterized in that: The window frame (1) and the window sash (2) are rotationally connected via an axis rotation mechanism, and the axis rotation mechanism comprises: A suspension assembly (3), comprising a mounting cavity (3.1) opened above a frame opening of a window frame (1), wherein a hanging beam unit (3.2) is arranged in the mounting cavity (3.1); A shaft rotation assembly (4), comprising a rotation tube (4.1) rotatably mounted at the bottom of the installation cavity (3.1), a first connection column (4.2) fixed to the window sash (2) being movably inserted in the rotation tube (4.1), the connection column (4.2) being connected to the hanging beam unit (3.2) via a connection rope (4.3), and a second connection column (4.4) rotatably mounted to the window frame (1) being fixed at the bottom of the window sash (2); A shaft (3.3) is rotatably mounted in the installation cavity (3.1); cam units (3.4) supporting the hanging beam unit (3.2) are fixed to both ends of the shaft body of the shaft (3.3); a worm gear unit (3.5) is fixed to the middle of the shaft (3.3); and a worm helix (3.6) meshing with the worm gear unit (3.5) is provided on the body of the rotating tube (4.1) located in the installation cavity (3.1); A first end face ratchet ring (6) is fixed to the inner bottom wall of the rotating tube (4.1); a second end face ratchet ring (7) mounted on the first connecting column (4.2) is provided above the first end face ratchet ring (6); when the first end face ratchet ring (6) is in meshing contact with the second end face ratchet ring (7), the first connecting column (4.2) can drive the rotating tube (4.1) in forward rotation; The hanging beam unit (3.2) comprises two diagonal support beams (3.21), the upward ends of the two diagonal support beams (3.21) are connected and fixed to each other to form a raised frame structure, and a plurality of auxiliary support plates (3.22) are fixed between the two diagonal support beams (3.21) and the wall surface of the installation cavity (3.1).

2. A bulletproof window system according to claim 1, characterized in that: A limit assembly (5) is also provided between the window frame (1) and the window sash (2), the limit assembly (5) comprising a lock body unit (5.1) mounted on the window frame (1) and a lock tongue unit (5.2) mounted on the window sash (2), the lock tongue unit (5.2) having an avoidance position and an extended position, the lock tongue unit (5.2) being able to form a locked state with the lock body unit (5.1) in the extended position, thereby limiting the movement of the window sash (2) in the window frame (1).

3. A bulletproof window system according to claim 2, characterized in that: The first connecting column (4.2) comprises a column (4.21), the column (4.21) is provided with a plurality of evenly distributed track grooves (4.22) on the outside, each of the track grooves (4.22) comprises a vertical groove (4.221), one end of the vertical groove (4.221) is connected to a spiral groove (4.222) connected to the top of the column (4.21), and each of the track grooves (4.22) is slidably adapted to be fixed to the inner wall surface of the second end face ratchet ring (7).

4. A bulletproof window system according to claim 3, characterized in that: The installation cavity (3.1) is a rectangular cavity, and thickened steel plates are fixed to the walls of the installation cavity (3.1).

5. A bulletproof window system according to claim 4, characterized in that: A filling space (3.26) is formed between the auxiliary support plate (3.22) on each of the diagonal support beams (3.21) and the thickened steel plate, and the filling space (3.26) is filled with buffer sand.

6. A bulletproof window system according to claim 5, characterized in that: A mounting cover (3.23) capable of being matched with the cam unit (3.4) is fixed to the bottom end of the diagonal support beam (3.21), two first support rollers (3.24) in contact with the cam unit (3.4) are rotatably mounted in the mounting cover (3.23), and a second support roller (3.25) rotatably mounted on the bottom surface of the mounting cavity (3.1) is provided directly below each of the cam units (3.4).

7. A bulletproof window system according to claim 6, characterized in that: The interior of the installation cavity (3.1) and the inner top of the window frame (1) are both provided with a limiting ring (8) fixed to the rotating tube (4.1), and a plurality of evenly distributed rolling wheels (9) are movably mounted on the ring body of the limiting ring (8).

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