Double inward-opening window with good protective property

Abstract

The utility model relates to the technical field of double inward-opening windows, and discloses a double inward-opening window with good protection performance, which comprises a window frame, an inner window sash and an outer window sash, the inner window sash and the outer window sash are both hinged with the inner wall of the window of the window frame, a guardrail component is arranged on the inner wall of the window in a sliding mode, and a folding and unfolding component used for folding and unfolding the guardrail component is arranged on the window frame. A connecting piece A is arranged on the inner window sash in a sliding mode, and a connecting piece B is arranged on the outer window sash in a sliding mode. Under the condition that the outer window sash is not installed in the window, the folding and unfolding assembly is connected with the connecting piece A; and under the condition that the outer window sash is installed on the window, the folding and unfolding assembly is connected with the connecting piece B. Through the arrangement of the folding and unfolding assembly, the connecting piece A and the connecting piece B, the guardrail assembly arranged in the window in a sliding mode can be rolled up when protection is not needed (namely when the window is not opened). Therefore, the guardrail assembly is prevented from blocking the sight line of people and reducing the comfort level of the visual field, and the problem that the attractiveness is affected is well solved.

Description

Technical Field

[0001] The utility model relates to the technical field of double inward-opening windows, and specifically relates to a double inward-opening window with good protection performance. Background Technique

[0002] A double inward-opening window refers to a type of window design, where "double inward-opening" refers to the opening method of the window and the window screen. Specifically, a double inward-opening window usually means that both the window and the window screen set within the same window frame open inward.

[0003] Double inward-opening windows are easy to clean because they allow you to clean both the inside and outside of the window without having to go outside. The window screen also opens inward and has a detachable design, making it convenient to clean.

[0004] Compared with protruding windows or outward-opening windows, double inward-opening windows are safer. The outward-opening window sashes are vulnerable to wind, sun, rain, and are prone to fading, corrosion, and damage; while for double inward-opening windows, even when the window is open, it does not pose a potential threat to the outside.

[0005] Some double inward-opening window designs are also equipped with protective components such as child safety locks and safety guards to prevent children from accidentally falling out of the building, further enhancing safety.

[0006] However, when the window is not open, the safety guard will, to a certain extent, block people's line of sight or reduce the comfort of the field of vision, and also has an impact on aesthetics. To solve the above problems, we propose a double inward-opening window with good protection performance. Content of the Utility Model

[0007] The purpose of the utility model is to provide a double inward-opening window with good protection performance to solve the problems raised in the above background technique.

[0008] To achieve the above purpose, the utility model provides the following technical solution: A double inward-opening window with good protection performance, including a window frame, an inner window sash, and an outer window sash. Both the inner window sash and the outer window sash are hinged to the inner wall of the window opening of the window frame. A guardrail assembly is slidably provided on the inner wall of the window opening. A retracting and releasing assembly for retracting and releasing the guardrail assembly is provided on the window frame. A connecting member A is slidably provided on the inner window sash, and a connecting member B is slidably provided on the outer window sash;

[0009] In the case where the outer window sash is not installed in the window opening, the retracting and releasing assembly is connected to the connecting member A;

[0010] In the case where the outer window sash is installed in the window opening, the retracting and releasing assembly is connected to the connecting member B.

[0011] According to the above technical solution, a chute is provided on the inner wall of the window. The guardrail assembly includes guard bars arranged longitudinally. The ends of the guard bars slide in the chute, and winding connection components are provided on each of the guard bars. Adjacent guard bars are connected through the winding connection components.

[0012] According to the above technical solution, the guard bar is of a hollow structure. The winding connection component includes a winding rotating shaft rotatably arranged inside the guard bar. A connecting wire for connecting with an adjacent guard bar is wound around the winding rotating shaft. The end of the winding rotating shaft passes through the end of the guard bar and is fixedly connected with a gear. A rack adapted to the gear is fixedly connected to the inner wall of the chute.

[0013] According to the above technical solution, a limiting chute is provided on the inner wall of the chute. A guiding member slidably connected to the inner wall of the limiting chute is fixedly connected to the outer wall of the guard bar.

[0014] According to the above technical solution, the retracting and releasing assembly includes a downward pulling and releasing bar member fixedly connected to the lower part of the window frame, and further includes a wire pulling rod slidably connected to the inner wall of the upper end of the window. A first wire is fixedly connected to the wire pulling rod. Both the downward pulling and releasing bar member and the first wire are connected to the guardrail assembly, and the wire pulling rod is connected to connecting member A or connecting member B.

[0015] According to the above technical solution, the downward pulling and releasing bar member includes a wire winding box. A wire winding roller is rotatably arranged inside the wire winding box. A second wire for connecting with the guardrail assembly is wound around the wire winding roller. A driving member for driving the wire winding roller to rotate is arranged inside the wire winding box.

[0016] According to the above technical solution, the driving member is a clockwork spring.

[0017] According to the above technical solution, a first limiting guide groove is provided on the inner wall of the upper end of the window. The retracting and releasing assembly includes a wire pulling rod connected to the guardrail assembly. The wire pulling rod slides in the first limiting guide groove. The connecting member A includes a U-shaped frame. An opening is provided on one side of the U-shaped frame. A baffle is hinged to the inner wall of the opening. An elastic member is arranged between the U-shaped frame and the baffle. A second limiting guide groove is provided at the upper end of the inner window sash. A connecting rod slidably connected to the inner wall of the second limiting guide groove is fixedly connected to the outer wall of the U-shaped frame.

[0018] According to the above technical solution, a third limiting guide groove is provided at the top of the outer window sash. The connecting member B includes a connecting sleeve slidably connected to the inner wall of the third limiting guide groove.

[0019] According to the above technical solution, the minimum distance between the opposite sides of the U-shaped frame is greater than the sum of the radius of the connecting sleeve and the length of the baffle.

[0020] Compared with the prior art, the beneficial effects of the present utility model are:

[0021] The utility model can wind up the guardrail assembly slidably arranged in the window when protection is not required (i.e., when the window is not opened) by providing a winding and unwinding assembly, a connecting piece A and a connecting piece B. In this way, not only is the line of sight of people blocked by the guardrail assembly avoided, the comfort of the field of vision is reduced, but also the problem of affected aesthetics is well solved.

[0022] In the case where the outer window sash is not installed in the window, when the inner window sash is opened, the inner window sash can drive the winding and unwinding assembly through the connecting piece A to release the winding of the guardrail assembly. At this time, the guardrail assembly can effectively protect the window and prevent the occurrence of falling accidents.

[0023] In the case where the outer window sash is installed in the window, when the inner window sash is opened, the winding and unwinding assembly will not release the winding of the guardrail assembly; when the inner window sash is opened and then the outer window sash is opened, the winding and unwinding assembly can drive the winding and unwinding assembly through the connecting piece B to release the winding of the guardrail assembly. At this time, the guardrail assembly can protect the window and prevent the occurrence of falling accidents. Description of the Drawings

[0024] Figure 1 is the three-dimensional view of the double-inside-opening window of the utility model;

[0025] Figure 2 is the cross-sectional view of the guardrail assembly and the winding and unwinding assembly of the utility model;

[0026] Figure 3 is the position diagram of the downward pull bar part of the utility model;

[0027] Figure 4 is the connection diagram of the guardrail assembly and the winding and unwinding assembly of the utility model;

[0028] Figure 5 is the connection diagram of the winding and unwinding assembly and the connecting piece A when the outer window sash is not installed in the window of the utility model;

[0029] Figure 6 is the connection diagram of the winding and unwinding assembly and the connecting piece B when the outer window sash is installed in the window of the utility model;

[0030] Figure 7 is the internal schematic diagram of the guardrail of the utility model;

[0031] In the figure:

[0032] 1. Window frame; 2. Inner window sash; 3. Outer window sash; 4. Guardrail assembly; 41. Guardrail rod; 42. Winding connection component; 421. Winding rotating shaft; 422. Connecting wire; 423. Gear; 424. Rack; 43. Limit sliding groove; 44. Guide; 51. Pull-down railing component; 511. Wire spool; 512. Wire winding roller; 513. Driving part; 514. Second pull wire; 52. Pull wire rod; 53. First pull wire; 61. U-shaped frame; 62. Baffle; 63. Connecting rod; 71. Connecting sleeve; 8. Sliding groove; 9. First limit guide groove. Detailed implementation manners

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0034] Please refer to Figure 1-7 , the present invention provides a technical solution for a double-inside-opening window with good protection: including a window frame 1, an inner window sash 2 and an outer window sash 3. The outer window sash 3 is a diamond mesh window screen, which is a mesh material woven from metal wires or similar materials and has characteristics such as strong tensile strength and corrosion resistance. After being installed on the window, the diamond mesh window screen can effectively prevent mosquitoes and other small insects from entering the room, and at the same time can also play a certain anti-theft role, preventing thieves from entering the residence of residents by means such as picking the lock. The inner window sash 2 and the outer window sash 3 are both hinged to the inner wall of the window opening of the window frame 1, and a guardrail assembly 4 is slidably arranged on the inner wall of the window opening. The guardrail assembly 4 can prevent the occurrence of falling accidents.

[0035] A retracting and releasing assembly for retracting and releasing the guardrail assembly 4 is provided on the window frame 1. By providing the guardrail assembly 4, when protection is not required (i.e., when the window is not opened), the guardrail assembly 4 slidably arranged in the window opening can be wound up. In this way, not only is the line of sight of people blocked by the guardrail assembly 4 avoided, and the comfort of the field of vision is reduced, but also the problem of affecting the aesthetics is well solved.

[0036] A connecting part A is slidably arranged on the inner window sash 2, and a connecting part B is slidably arranged on the outer window sash 3;

[0037] The outer window sash 3 is detachably connected to the inner wall of the window opening, which facilitates the removal of the outer window sash 3 for cleaning. This is an existing technology and will not be elaborated here. When the outer window sash 3 is not installed in the window opening, that is, after the outer window sash 3 is removed, the retracting and deploying assembly is connected to the connecting piece A. In this case, when the inner window sash 2 is opened, the inner window sash 2 can drive the retracting and deploying assembly through the connecting piece A, so that the retracting and deploying assembly releases the winding of the guardrail assembly 4. At this time, the guardrail assembly 4 can effectively protect the window opening and prevent the occurrence of falling accidents.

[0038] When the outer window sash 3 is installed in the window opening, the retracting and deploying assembly is connected to the connecting piece B. When the inner window sash 2 is opened, due to the protection of the outer window sash 3, there is no need to activate the guardrail assembly 4 at this time. In this case, the retracting and deploying assembly is not connected to the connecting piece A. Therefore, after the inner window sash 2 is opened, the retracting and deploying assembly will not release the winding of the guardrail assembly 4 either.

[0039] When the inner window sash 2 is opened and then the outer window sash 3 is opened, since the connecting piece B is connected to the retracting and deploying assembly, the retracting and deploying assembly can drive the retracting and deploying assembly through the connecting piece B, so that the retracting and deploying assembly releases the winding of the guardrail assembly 4. At this time, the guardrail assembly 4 can protect the window opening and prevent the occurrence of falling accidents.

[0040] Specifically, a sliding groove 8 is provided on the inner wall of the window opening, which provides a stable track for the sliding of the guardrail assembly 4. The guardrail assembly 4 includes longitudinally arranged guard bars 41, and the ends of these guard bars 41 can slide within the sliding groove 8 under the restriction of the sliding groove 8, so as to realize the flexible retraction and deployment of the guardrail assembly 4.

[0041] Retracting and connecting parts 42 are provided on all the guard bars 41, and adjacent guard bars 41 are connected through the retracting and connecting parts 42. During the process of retracting and deploying the guardrail assembly 4, the retracting and connecting parts 42 can ensure the coordinated action between the guard bars 41 and guarantee the smoothness and consistency of the retraction and deployment of the entire guardrail assembly 4.

[0042] When it is necessary to use the guardrail assembly 4 for protection, the guard bars 41 slide and unfold in the sliding groove 8, and adjacent guard bars 41 are connected into a solid protective barrier through the retracting and connecting parts 42, effectively preventing the occurrence of falling accidents.

[0043] When protection is not required, the guard bars 41 slide and retract along the sliding groove 8, and with the connection function of the retracting and connecting parts 42, they are neatly and orderly stored, minimizing the impact on the line of sight and aesthetics to the greatest extent.

[0044] Specifically, the protective rod 41 has a hollow structure. The winding connection component 42 includes a winding rotating shaft 421 rotatably arranged inside the protective rod 41. A connecting wire 422 for connecting to an adjacent protective rod 41 is wound around the winding rotating shaft 421. The end of the winding rotating shaft 421 passes through the end of the protective rod 41 and is fixedly connected with a gear 423, while a rack 424 adapted to the gear 423 is fixedly connected to the inner wall of the chute 8;

[0045] When the protective rod 41 slides in the chute 8, the gear 423 and the rack 424 interact. As the protective rod 41 moves, the rack 424 drives the gear 423 to rotate, thereby causing the winding rotating shaft 421 to rotate. The rotation of the winding rotating shaft 421 realizes the winding and unwinding of the connecting wire 422, so as to adjust the distance and connection state between adjacent protective rods 41.

[0046] When it is necessary to deploy the guardrail assembly 4 for protection, the winding and unwinding assembly drives the bottom protective rod 41 to slide downward, and then drives the protective rods 41 to slide downward one by one through the winding connection component 42. The cooperation between the gear 423 and the rack 424 causes the winding rotating shaft 421 to release the connecting wire 422, and the distance between adjacent protective rods 41 increases, forming a strong protective barrier.

[0047] Conversely, when it is necessary to wind up the guardrail assembly 4, the winding and unwinding assembly drives the top protective rod 41 to slide upward. The gear 423 and the rack 424 cause the winding rotating shaft 421 to retract the connecting wire 422, and adjacent protective rods 41 approach each other, realizing neat winding. This improves the safety and convenience of the double-inside-opening window in different usage states.

[0048] Specifically, a limiting chute 43 is provided on the inner wall of the chute 8, and a guiding member 44 slidably connected to the inner wall of the limiting chute 43 is fixedly connected to the outer wall of the protective rod 41. The guiding member 44 can slide smoothly in the limiting chute 43, preventing the protective rod 41 from shifting, swaying or disengaging from the chute 8, thereby providing guiding and stable limiting effects for the movement of the protective rod 41.

[0049] Specifically, the winding and unwinding assembly includes a downward pull railing member 51 fixedly connected to the lower part of the window frame 1. The downward pull railing member 51 is connected to the guardrail assembly 4. When deploying the guardrail assembly 4 for protection, the downward pull railing member 51 can play a role and drive its deployment through the connection with the guardrail assembly 4.

[0050] It further includes a wire pulling rod 52 slidably connected to the inner wall of the upper end of the window opening. A first wire 53 is fixedly connected to the wire pulling rod 52. The first wire 53 is connected to the guardrail assembly 4. The wire pulling rod 52 can pull the top protective rod 41 of the guardrail assembly 4 through the first wire 53 to wind up the guardrail assembly 4.

[0051] Wherein the wire pulling rod 52 is connected to the connecting member A or the connecting member B;

[0052] When the outer window sash 3 is not installed in the window, that is, after the outer window sash 3 is removed, the cable rod 52 of the retractable assembly is connected to the connecting piece A. In this case, when the inner window sash 2 is closed, the inner window sash 2 can pull the cable rod 52 of the retractable assembly through the connecting piece A, so that the cable rod 52 pulls the guard rod 41 at the top of the guardrail assembly 4 through the first cable 53, and the guardrail assembly 4 is wound up.

[0053] When the inner window sash 2 is opened, the lower drop-down bar member 51 can pull the guard rod 41 at the bottom of the guardrail assembly 4, driving it to unfold to form a strong protective barrier.

[0054] When the outer window sash 3 is installed in the window, the cable rod 52 of the retractable assembly is connected to the connecting piece B. When the inner window sash 2 is opened, since the outer window sash 3 is in the installed state, providing a certain degree of protection, there is no need to enable the guardrail assembly 4 at this time. Therefore, after the inner window sash 2 is opened, the retractable assembly will not release the winding of the guardrail assembly 4.

[0055] When the inner window sash 2 is opened and then the outer window sash 3 is opened, since the connecting piece B is connected to the cable rod 52 of the retractable assembly, the outer window sash 3 will drive the cable rod 52 to move towards the hinged end of the outer window sash 3, so that the first cable 53 releases the pulling on the top guard rod 41. The lower drop-down bar member 51 can pull the guard rod 41 at the bottom of the guardrail assembly 4, driving it to unfold to form a strong protective barrier to prevent the occurrence of falling accidents.

[0056] When closing the outer window sash 3, the outer window sash 3 can push the cable rod 52 of the retractable assembly through the connecting piece B, so that the cable rod 52 pulls the guard rod 41 at the top of the guardrail assembly 4 through the first cable 53, and the guardrail assembly 4 is wound up.

[0057] Specifically, the lower drop-down bar member 51 includes a cable reel 511. A winding roller 512 is rotatably provided in the cable reel 511. A second cable 514 connected to the guardrail assembly 4 is wound around the winding roller 512. A driving member 513 for driving the winding roller 512 to rotate is provided in the cable reel 511. By driving the winding roller 512 to rotate through the driving member 513, the retraction and release of the second cable 514 are realized, thereby driving the guardrail assembly 4 to unfold or wind up.

[0058] Specifically, the driving member 513 is a clockwork spring, which has the characteristics of elastic potential energy storage and release, and can provide power for the rotation of the winding roller 512. When it is necessary to retract the second pull wire 514, that is, when the guardrail assembly 4 is deployed, the energy stored in the clockwork spring is released, driving the winding roller 512 to rotate and pay out the wire; when it is necessary to release the second pull wire 514, that is, when the guardrail assembly 4 is wound up, the pull wire rod 52 pulls the guardrail assembly 4 through the first pull wire 53. When the guardrail assembly 4 rises, the pulling force generated on the second pull wire 514 can overcome the resistance of the clockwork spring, driving the winding roller 512 to rotate in the reverse direction to take up the wire.

[0059] Specifically, a first limiting guide groove 9 is provided on the inner wall at the upper end of the window. The winding and unwinding assembly includes a pull wire rod 52 connected to the guardrail assembly 4. The pull wire rod 52 slides in the first limiting guide groove 9. The connecting member A includes a U-shaped frame 61. One side of the U-shaped frame 61 is provided with an opening, and the opening is larger than the diameter of the pull wire rod 52. The pull wire rod 52 can enter the U-shaped frame 61 through the opening. A baffle 62 is hinged on the inner wall of the opening. There are two baffles 62, which can block the opening. The two baffles 62 are symmetrically arranged on the inner wall of the opening. The baffle 62 can rotate towards the inside of the U-shaped frame 61. A resilient member is provided between the U-shaped frame 61 and the baffle 62. The resilient member is a torsion spring. When the U-shaped frame 61 approaches the pull wire rod 52, the pull wire rod 52 will press the two baffles 62, causing the two baffles 62 to rotate towards the inside of the U-shaped frame 61. After the baffle 62 is separated from the block of the pull wire rod 52, the baffle 62 will continue to block the opening under the action of the torsion force of the torsion spring. In this way, as the inner window sash 2 moves, the pull wire rod 52 can be driven to move by the U-shaped frame 61.

[0060] A second limiting guide groove is provided at the upper end of the inner window sash 2. A connecting rod 63 fixedly connected to the inner wall of the second limiting guide groove is provided on the outer wall of the U-shaped frame 61. A first limiting slider is rotatably provided at the bottom of the connecting rod 63. The first limiting slider can move linearly in the second limiting guide groove. As the inner window sash 2 rotates (opens or closes), the pull wire rod 52 can be restricted by the first limiting slider and the second limiting guide groove, and move along the first limiting guide groove 9 inside it, approaching or departing from the hinge end of the inner window sash 2.

[0061] Specifically, a third limiting guide groove is provided at the top of the outer window sash 3. The connecting member B includes a connecting sleeve 71 movably connected to the inner wall of the third limiting guide groove. When installing the outer window sash 3, the connecting sleeve 71 is sleeved on the outer wall of the pull wire rod 52. A second limiting slider is rotatably connected to the bottom of the connecting sleeve 71. The second limiting slider can move linearly in the third limiting guide groove. As the outer window sash 3 rotates (opens or closes), the pull wire rod 52 can be restricted by the second limiting slider and the third limiting guide groove, and move along the first limiting guide groove 9 inside it, approaching or departing from the hinge end of the outer window sash 3.

[0062] Specifically, the minimum distance between the opposite sides of the U-shaped frame 61 is greater than the sum of the radius of the connecting sleeve 71 and the length of the baffle 62. After the connecting sleeve 71 is sleeved on the outer wall of the guy wire rod 52, neither the guy wire rod 52 nor the connecting sleeve 71 can enter the U-shaped frame 61, so that when the outer window sash 3 is installed, the connecting member A and the retracting and releasing assembly cannot be connected.

[0063] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "provided with", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front", "center", "both ends", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0064] In addition, the terms "first", "second", "third", "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", "third", "fourth" may explicitly or implicitly include at least one of such features.

[0065] In the present invention, unless otherwise clearly defined and limited, the terms "installed", "set", "connected", "fixed", "rotary connected", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. Unless otherwise clearly limited, for those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0066] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A double-inside-opening window with good protection performance, comprising a window frame (1), an inner window sash (2) and an outer window sash (3), wherein the inner window sash (2) and the outer window sash (3) are both hinged to the inner wall of the window opening of the window frame (1), and it is characterized in that: A guardrail assembly (4) is slidably provided on the inner wall of the window. A retracting and extending assembly for retracting and extending the guardrail assembly (4) is provided on the window frame (1). A connecting member A is slidably provided on the inner window sash (2), and a connecting member B is slidably provided on the outer window sash (3). When the outer window sash (3) is not installed in the window, the retracting and extending assembly is connected to the connecting member A. When the outer window sash (3) is installed in the window, the retracting and extending assembly is connected to the connecting member B.

2. The double-inside-opening window with good protection according to claim 1, characterized in that: A chute (8) is provided on the inner wall of the window. The guardrail assembly (4) includes longitudinally arranged guard bars (41). The ends of the guard bars (41) slide in the chute (8). Retracting and connecting members (42) are provided on the guard bars (41). Adjacent guard bars (41) are connected by retracting and connecting members (42).

3. The double-inside-opening window with good protection according to claim 2, characterized in that: The guard bar (41) is of a hollow structure. The retracting and connecting member (42) includes a winding rotating shaft (421) rotatably provided inside the guard bar (41). A connecting wire (422) connected to an adjacent guard bar (41) is wound around the winding rotating shaft (421). The end of the winding rotating shaft (421) passes through the end of the guard bar (41) and is fixedly connected with a gear (423). A rack (424) adapted to the gear (423) is fixedly connected to the inner wall of the chute (8).

4. A double-inside-opening window with good protection as claimed in claim 2, characterized in that: A limiting chute (43) is provided on the inner wall of the chute (8). A guiding member (44) slidably connected to the inner wall of the limiting chute (43) is fixedly connected to the outer wall of the guard bar (41).

5. A double-inside-opening window with good protection performance according to claim 1, characterized in that: The retracting and extending assembly includes a downward retracting guardrail member (51) fixedly connected to the lower part of the window frame (1), and further includes a wire pulling rod (52) slidably connected to the inner wall of the upper end of the window. A first wire (53) is fixedly connected to the wire pulling rod (52). Both the downward retracting guardrail member (51) and the first wire (53) are connected to the guardrail assembly (4), wherein the wire pulling rod (52) is connected to the connecting member A or the connecting member B.

6. The double-inside-opening window with good protection according to claim 5, wherein: The downward retracting guardrail member (51) includes a wire winding box (511). A wire winding roller (512) is rotatably provided inside the wire winding box (511). A second wire (514) connected to the guardrail assembly (4) is wound around the wire winding roller (512). A driving member (513) for driving the wire winding roller (512) to rotate is provided inside the wire winding box (511).

7. The double-inside-opening window with good protection according to claim 6, characterized in that: The driving member (513) is a clockwork spring.

8. A double-inside-opening window with good protection as claimed in claim 1, wherein: A first limiting guide groove (9) is provided on the inner wall of the upper end of the window. The retracting and extending assembly includes a wire pulling rod (52) connected to the guardrail assembly (4). The wire pulling rod (52) slides in the first limiting guide groove (9). The connecting member A includes a U-shaped frame (61). One side of the U-shaped frame (61) is provided with an opening. A baffle (62) is hinged to the inner wall of the opening. An elastic member is provided between the U-shaped frame (61) and the baffle (62). A second limiting guide groove is provided at the upper end of the inner window sash (2). A connecting rod (63) slidably connected to the inner wall of the second limiting guide groove is fixedly connected to the outer wall of the U-shaped frame (61).

9. A double-inside-opening window with good protection according to claim 8, characterized in that: A third limiting guide groove is provided at the top of the outer window sash (3). The connecting member B includes a connecting sleeve (71) slidably connected to the inner wall of the third limiting guide groove.

10. A double-inside-opening window with good protection according to claim 9, characterized in that: The minimum distance between the opposite sides of the U-shaped frame (61) is greater than the sum of the radius of the connecting sleeve (71) and the length of the baffle (62).

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