Rapidly detached heaven and earth shaft and window

Abstract

The heaven and earth shaft comprises a connecting shaft block and a base, a rotating shaft is arranged on the bottom face of the connecting shaft block, and the base comprises an upper cover plate and a movable plate; a strip-shaped hole and a shaft groove are formed in the top face of the upper cover plate, the rotating shaft is arranged in the shaft groove in a rotatable mode, and a notch is formed in the side wall, in the width direction of the upper cover plate, of the shaft groove. A limiting plate and a sliding block are fixedly arranged on the movable plate, the sliding block penetrates through the strip-shaped hole and is exposed relative to the top surface of the upper cover plate, and the limiting plate is matched with the shaft groove so as to block or avoid the notch; a limiting shaft is arranged on the movable plate, a limiting piece is arranged on the heaven and earth shaft, the limiting piece comprises two limiting strips arranged at intervals and a limiting hole, and a strip-shaped receding hole is formed in one side of each limiting strip; the limiting shaft is arranged in the limiting hole, and the minimum width of the limiting hole is smaller than the width of the limiting shaft so that the limiting shaft can be clamped in the limiting hole. The window comprises a window sash, a window frame and a heaven and earth shaft, so that the window or the heaven and earth shaft can be quickly disassembled.

Description

A quick-disassembly top and bottom hinge and window Technical Field

[0001] This invention relates to the field of window technology, and more specifically to a quick-disassembly top and bottom hinge and a window. Background Technology

[0002] A window generally consists of a frame and a sash. The frame is fixed within a rectangular opening in the wall, while the sash is fitted with glass or a screen. The sash is typically mounted to the frame via a pivot, allowing it to rotate and open or close. The pivot functions similarly to a window hinge, securing the sash and allowing it to rotate.

[0003] The current top and bottom hinges are fixed connections, which are inconvenient for installing and removing windows, requiring a screwdriver for disassembly. This is especially true for window screens, as the screen mesh is frequently exposed to drafts, accumulating debris and dust that needs to be cleaned regularly. However, the fixed top and bottom hinges make disassembly and installation difficult. Summary of the Invention

[0004] The purpose of this invention is to address the problem of inconvenient disassembly and installation of the top and bottom hinges of windows, and to provide a quick-disassembly top and bottom hinge and window that enables rapid disassembly of the window sash.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solution:

[0006] A quick-disassembly top and bottom hinge includes a connecting block and a base. A rotating shaft is provided on the bottom surface of the connecting block, and the base includes an upper cover plate and a movable plate that is slidably disposed relative to the upper cover plate.

[0007] The top surface of the upper cover plate is provided with a strip-shaped hole and a shaft groove. The rotating shaft is rotatably disposed in the shaft groove. The side wall of the shaft groove in the width direction of the upper cover plate is provided with a notch, which allows the rotating shaft to pass through.

[0008] A limiting plate and a slider are fixedly installed on the movable plate. The slider passes through the strip hole and protrudes relative to the top surface of the upper cover plate. The limiting plate cooperates with the shaft groove to block or avoid the notch.

[0009] The movable plate is provided with a limiting shaft, and the top and bottom shafts are provided with limiting components. The limiting component includes two spaced limiting strips, and the space between the two limiting strips forms a strip-shaped limiting hole. A strip-shaped clearance hole is provided on the side of the limiting strip away from the limiting hole. The limiting shaft is disposed in the limiting hole, and the minimum width of the limiting hole is smaller than the width of the limiting shaft so that the limiting shaft can be held in the limiting hole.

[0010] Preferably, a U-shaped enclosure is provided on the top surface of the upper cover plate, the U-shaped space of the enclosure forms the shaft groove, the limiting plate is provided on the side of the movable plate and is L-shaped, a rectangular slot is provided on the side of the upper cover plate, and the root of the limiting plate is provided in the slot; the end face of one end of the enclosure is flush with the side of the slot.

[0011] Preferably, the top and bottom axis of this application also includes a lower cover plate, and the bottom surface of the upper cover plate is provided with a receiving groove for accommodating the movable plate and the lower cover plate, and the lower cover plate presses the movable plate in the receiving groove; the limiting member is provided on the lower cover plate.

[0012] Preferably, both ends of the limiting hole are provided with arc-shaped recesses, which are used to accommodate the limiting shaft.

[0013] Preferably, the bottom surface of the limiting strip is higher than the bottom surface of the lower cover plate, so that the limiting strip is suspended in the air.

[0014] Preferably, the two side walls of the receiving groove in the width direction are respectively provided with relief openings, and the two ends of the lower cover plate in the width direction are respectively provided with protruding positioning strips, which extend into the relief openings.

[0015] Preferably, the top surfaces of both ends of the receiving groove of the upper cover plate are provided with slots that penetrate the top surface of the upper cover plate, and the two ends of the lower cover plate are provided with inverted L-shaped locking blocks, the free ends of the locking blocks being able to extend into the slots to engage with the slots.

[0016] Preferably, at least one edge of the top surface of the card block away from the lower cover plate is rounded.

[0017] Preferably, the lower cover plate is made of plastic, the upper cover plate and the movable plate are both made of metal, and the bottom surface of the lower cover plate is equal to or higher than the bottom surface of the upper cover plate.

[0018] A window includes a window frame, a window sash, and the aforementioned top and bottom pivots. The base is fixedly mounted on the window frame, with the length direction of the base parallel to the length direction of the window frame and the width direction of the base parallel to the width direction of the window frame. The connecting block is fixedly mounted on the window sash, and the window sash is rotatably mounted on the window frame via the top and bottom pivots.

[0019] Compared with the prior art, the beneficial effects of the heaven and earth axis of the present invention are as follows:

[0020] The connecting block of the top and bottom hinges of this application can be quickly removed from the base so that the window sash can be quickly disassembled. Specifically, the user moves the slider by hand, and the limiting plate moves with it. The gap blocked by the limiting plate gradually opens. When the limiting plate moves to the point where the gap is fully open, the user can move the connecting block to move it out of the hinge groove, thereby separating the connecting block from the base.

[0021] Since the notch is located on the side of the base in the width direction, the connecting block can be removed simply by moving it in the width direction. However, if the notch is located on the side of the base in the length direction, the connecting block needs to be moved in the length direction to disengage from the shaft groove first, and then moved in the width direction to disengage, which is more troublesome. This application only requires moving it in the width direction, which is more convenient.

[0022] The movable plate is restrained by two limiting strips. Compared with the traditional spring-reset movement method, this application is a mechanical structure with a better service life. It will not fail to lock the limiting strips due to the weakening of the spring elasticity, and can effectively fix the limiting plate in the gap for a long time to seal the gap.

[0023] Compared with the prior art, the beneficial effects of the window of the present invention are as follows:

[0024] The window sash of this application can be quickly removed from the window frame. The user rotates the window sash so that the window sash and the window frame have a certain angle, exposing the base. Then, the user moves the slider by hand, and the limiting plate moves with it. The gap blocked by the limiting plate gradually opens. When the limiting plate moves to the point where the gap is fully open, the user lifts the window sash and moves the connecting block to move the connecting block out of the shaft groove, thereby realizing the separation of the window sash and the window frame.

[0025] Since the notch of the top and bottom pivots is located on the side of the base in the width direction, and the length direction of the base is parallel to the length direction of the window frame, the connecting block can be removed simply by moving it along the width direction of the window frame. However, if the notch is located on the side of the base in the length direction, the connecting block needs to be moved along the length direction to disengage from the pivot groove, and then moved along the width direction to disengage the bottom of the window sash from the window frame, which is more troublesome. This application only requires moving it along the width direction, which is more convenient.

[0026] The movable plate is restrained by two limiting strips. Compared with the traditional spring-reset movement method, this application is a mechanical structure with a better service life. It will not fail to lock the limiting strips due to the weakening of the spring elasticity, and can effectively fix the limiting plate in the gap for a long time to seal the gap. Figure description:

[0027] Figure 1 is a structural schematic diagram of the window in this application;

[0028] Figure 2 is a structural diagram of Figure 1 with the window sash omitted;

[0029] Figure 3 is a magnified view of part A in Figure 1;

[0030] Figure 4 is a magnified view of part B in Figure 2;

[0031] Figure 5 is a structural schematic diagram of the top and bottom shaft of this application, in which the connecting shaft and the base are separated.

[0032] Figure 6 is a structural schematic diagram of the top and bottom shaft of this application, in which the connecting shaft and the base are separated.

[0033] Figure 7 is a schematic diagram of the structure of the base of this application;

[0034] Figure 8 is a magnified view of part C in Figure 7;

[0035] Figure 9 is a schematic diagram of the split structure of the heaven and earth axis of this application;

[0036] Figure 10 is a schematic diagram of the split structure of the heaven and earth axis of this application;

[0037] Figure 11 is a top view of the base of this application;

[0038] Figure 12 is a sectional perspective view of DD in Figure 11;

[0039] The diagram shows the following components: connecting block 100, rotating shaft 110, base 200, upper cover plate 210, bottom surface of upper cover plate 2101, strip hole 211, shaft groove 212, notch 213, enclosure 214, slot 215, receiving groove 216, clearance opening 217, bayonet 218, moving plate 220, limiting plate 221, slider 222, limiting shaft 223, lower cover plate 230, bottom surface of lower cover plate 2301, limiting component 231, limiting strip 2311, limiting hole 2312, clearance hole 2313, notch 2314, positioning strip 232, locking block 233, window frame 300, window sash 400. Detailed Implementation

[0040] The present invention will be further described in detail below with reference to experimental examples and specific embodiments. However, this should not be construed as limiting the scope of the above-mentioned subject matter of the present invention to the following embodiments; all technologies implemented based on the content of the present invention fall within the scope of the present invention.

[0041] As shown in Figures 1-4, a window includes a window frame 300, a window sash 400, a connecting shaft, and a top and bottom shaft. A connecting hole is provided on the inner surface of the upper end of the window frame 300. The connecting shaft is fixed to the top surface of the window sash 400 and placed in the connecting hole. The upper end of the window sash 400 is rotatably connected to the upper end of the window frame 300 through the connecting shaft, and the lower end of the window sash 400 is rotatably connected to the lower end of the window frame 300 through the top and bottom shafts. The rotation axis 110 of the connecting shaft coincides with the rotation axis 110 of the top and bottom shafts, so that the window sash 400 is rotatably connected to the window frame 300 through the connecting shaft and the top and bottom shafts.

[0042] The top and bottom hinge of this application is a quick-disassembly top and bottom hinge, as shown in Figure 4. It includes a connecting block 100 and a base 200. A rotating shaft 110 is provided on the bottom surface of the connecting block 100. A shaft groove 212 is designed on the base 200. The rotating shaft 110 is disposed in the shaft groove 212 so that the rotating shaft 110 is rotatably disposed in the shaft groove 212, thereby the connecting block 100 can rotate relative to the base 200.

[0043] The connecting block 100 is fixedly mounted on the bottom surface of the window sash 400 by screws, rivets or bolts, and the base 200 is fixedly mounted on the inner surface of the lower end of the window frame 300 by screws, rivets or bolts. The length direction of the base 200 is parallel to the length direction of the window frame 300, and the width direction of the base 200 is parallel to the width direction of the window frame 300. The spatial dimensions of the base 200 and the window frame 300 are length, width and height. The height is the vertical dimension when normally installed, the length direction is the same as the length, and the width direction is the same as the width.

[0044] As shown in Figures 5-10, the base 200 includes an upper cover plate 210, a movable plate 220 slidably disposed relative to the upper cover plate 210, and a lower cover plate 230; the lower cover plate 230 and the lower cover plate 230 clamp the movable plate 220 in the middle so that the movable plate 220 can slide between the upper cover plate 210 and the lower cover plate 230.

[0045] As shown in Figure 5, the top surface of the upper cover plate 210 is provided with a strip-shaped hole 211 and a U-shaped enclosure 214. The U-shaped space of the enclosure 214 forms the shaft groove 212. The rotating shaft 110 of the connecting shaft block 100 is rotatably disposed in the shaft groove 212. The side wall of the shaft groove 212 is provided with a notch 213 that allows the rotating shaft 110 to pass through. The notch 213 is provided on the side wall of the upper cover plate 210 in the width direction on the shaft groove 212. Thus, when the rotating shaft 110 moves out of the shaft groove 212 from the notch 213, it moves along the width direction of the upper cover plate 210. Since the width direction of the upper cover plate 210 is the same as the width direction of the window frame 300, the rotating shaft 110 can move along the width direction of the window frame 300 to either leave or enter the shaft groove 212.

[0046] A limit plate 221 and a slider 222 are fixedly installed on the movable plate 220. The slider 222 passes through the strip hole 211 and protrudes relative to the top surface of the upper cover plate 210, so that the user can easily move the slider 222 by hand.

[0047] The limiting plate 221 cooperates with the shaft groove 212 to block or avoid the notch 213, so that the user can move the slider 222 relative to the upper cover plate 210. The moving plate 220 also moves, and the limiting plate 221 set on the moving plate 220 moves with it. Thus, the limiting plate 221 can move to block the notch 213, thereby preventing the rotating shaft 110 from moving out of the notch 213. It can restrict the rotating shaft 110 to stay in the shaft groove 212, so that the window sash 400 can be firmly rotated and mounted on the window frame 300. Of course, the movement of the limiting plate 221 can also avoid the notch 213, so that the notch 213 opens and the rotating shaft 110 can move out. The sash 400 can move out from the notch 213, as shown in Figure 6, which is the open state of the notch 213. Therefore, when the window needs to be removed, rotate the sash 400 to create an angle between it and the window frame 300, at least exposing the slider 222 so that the user can move it. This causes the limiting plate 221 to move accordingly, opening the notch 213. The connecting block 100 can then move out from the notch 213 along the length of the upper cover plate 210, meaning the bottom of the sash 400 can move along the width of the window frame 300 to detach from it. The sash 400 is then disassembled, achieving quick removal. Assembling the sash 400 is also quick. Simply rotate the shaft 110 along the width direction to move it into the shaft groove 212. Then, the user only needs to manually move the slider 222 to seal the limiting plate 221, as shown in Figure 5, where the limiting plate 221 seals the notch 213.

[0048] As shown in Figures 5 and 6, since the notch 213 of the top and bottom shafts in this application is located on the side of the base 200 in the width direction, and the length direction of the top and bottom shafts is parallel to the length direction of the window frame 300, when removing the connecting block 100, it is only necessary to move it along the width direction of the window frame 300 to remove it. However, if the notch 213 is located on the side of the base 200 in the length direction, it is necessary to first move the connecting block 100 along the length direction to disengage it from the shaft groove 212, and then move it along the width direction to make the bottom of the window sash 400 disengage from the window frame 300, which is more troublesome. This application only requires moving it along the width direction, which is more convenient.

[0049] As shown in Figures 7 and 8, a limiting shaft 223 is provided on the moving plate 220, and a limiting component 231 is provided on the vertical shaft of this application. The limiting component 231 includes two spaced limiting strips 2311, and the space between the two limiting strips 2311 forms a strip-shaped limiting hole 2312. A strip-shaped clearance hole 2313 is provided on the side of the limiting strip 2311 away from the limiting hole 2312. The limiting shaft 223 is disposed in the limiting hole 2312, and the minimum width of the limiting hole 2312 is smaller than the width of the limiting shaft 223, so that the limiting shaft 223 can be held in the limiting hole 2312 when it moves in the limiting hole 2312. Because of the clearance holes 2313, when the limiting shaft 223 moves to a position where the width of the limiting hole 2312 is less than the width of the limiting shaft 223, the two limiting strips 2311 clamp the limiting shaft 223. Simultaneously, the limiting shaft 223 applies a counterforce, giving the limiting strips 2311 an outward force, causing them to slightly bend and expand to both sides. In other words, the limiting shaft 223 expands the limiting strips 2311, causing them to bend slightly. The clearance holes 2313 on both sides provide clearance space for this slight bending. The presence of the limiting member 231 allows the movable plate 220 to move and can also be clamped and fixed at multiple positions by the limiting strips 2311, thereby enabling the limiting plate 221 to either block or avoid the notch 213. Compared to the traditional spring-reset movement method, this application uses a mechanical structure, which has a longer service life and will not fail to lock the limit strip 2311 due to the weakening of the spring elasticity. It can effectively fix the limit plate 221 in the notch 213 for a long time to seal the notch 213.

[0050] Both ends of the limiting hole 2312 are provided with arc-shaped recesses 2314, which are used to accommodate the limiting shaft 223. The two arc-shaped recesses 2314 at the same end are correspondingly provided so that they can work together to accommodate the limiting shaft 223. Since there are recesses 2314 at both ends of the limiting hole 2312, the limiting shaft 223 can be locked in two positions. One position is in which the limiting plate 221 is in the position of blocking the notch 213, as shown in Figure 5. The other position is in which the limiting plate 221 completely avoids the notch 213, as shown in Figure 6.

[0051] The limiting member 231 can be disposed on the upper cover plate 210, or it can be disposed on other components. Furthermore, the vertical shaft of this application also includes a lower cover plate 230, as shown in Figures 9, 10, and 12. The vertical shaft of this application consists of a connecting block 100, an upper cover plate 210, a moving plate 220, and a lower cover plate 230 from top to bottom. The limiting member 231 is disposed on the lower cover plate 230, and the corresponding limiting shaft 223 is disposed on the bottom surface of the moving plate 220. Compared to the limiting member 231 being disposed on the upper cover plate 210, the limiting member 231 being disposed on the lower cover plate 230 can better utilize the entire space of the vertical shaft, making the size more compact.

[0052] Furthermore, as shown in Figure 8, the bottom surface of the limiting strip 2311 is higher than the bottom surface of the lower cover plate 230, so that the limiting strip 2311 is suspended relative to the bottom surface of the lower cover plate 230. The base 200 is installed on the window frame 300. The bottom surface of the lower cover plate 230 directly contacts the inner side of the window frame 300. If the bottom surface of the limiting strip 2311 is flush with the bottom surface of the lower cover plate 230, when the limiting shaft 223 slides and expands the relief hole 2313 in the limiting hole 2312, the relief strip will move along the width direction of the vertical axis. At this time, the bottom surface of the limiting strip 2311 will contact the inner side of the window frame 300 and generate friction, which will affect the movement of the limiting strip 2311 and also make the limiting strip 2311 hold the limiting shaft 223 very tightly, making it difficult to move the limiting shaft 223. In addition, after the window has been used for a long time, dust or other debris will accumulate on the inner side of the window frame 300, which will block the movement of the limiting strip 2311, thus causing the limiting shaft 223 to get stuck and unable to move. The suspended bottom of the limit strip 2311 can solve the above two problems, avoiding friction and preventing dust or debris from getting stuck.

[0053] As shown in Figure 10, the bottom surface of the upper cover plate 210 is provided with a receiving groove 216 for accommodating the movable plate 220 and the lower cover plate 230. The lower cover plate 230 presses the movable plate 220 in the receiving groove 216. Both the upper cover plate 210 and the lower cover plate 230 are provided with multiple corresponding mounting holes. The upper cover plate 210 and the lower cover plate 230 can be fixed together to the window frame 300 by bolts or screws, while the movable plate 220 is sandwiched in the middle by the upper cover plate 210 and the lower cover plate 230.

[0054] As shown in Figures 7 and 9, the two side walls of the receiving groove 216 in the width direction are respectively provided with relief openings 217, and the two ends of the lower cover plate 230 in the width direction are respectively provided with protruding positioning strips 232. The positioning strips 232 extend into the relief openings 217 to realize the positioning of the lower cover plate 230 and the upper cover plate 210 in the length direction.

[0055] As shown in Figures 9 and 10, the limiting plate 221 is disposed on the side of the movable plate 220 and is L-shaped. The upper cover plate 210 has a rectangular slot 215 on its side, and the root of the limiting plate 221 is disposed in the slot 215. One end face of the enclosure 214 is flush with the side face of the slot 215, thereby making room for the movement of the limiting plate 221, thus making the structure more compact.

[0056] As shown in Figures 9, 10, and 12, the top surfaces of both ends of the receiving groove 216 of the upper cover plate 210 are provided with slots 218 that penetrate the top surface of the upper cover plate 210. The two ends of the lower cover plate 230 are provided with inverted L-shaped locking blocks 233. The free ends of the locking blocks 233 can extend into the slots 218 to cooperate with the slots 218 to form a snap-fit ​​connection, so that the lower cover plate 230 and the upper cover plate 210 can be snap-fit ​​installed and fixed. Thus, the base 200 can be assembled first and then fixed to the window frame 300.

[0057] Furthermore, at least one edge of the top surface of the card block 233 away from the lower cover plate 230 is rounded to form a 1 / 4 cylindrical surface on the top surface of the card block 233, which can facilitate the card block 233 to be inserted into the slot 218, specifically as shown in the card block 233 on the right side of Figure 9, or as shown in the card block 233 on the left side of Figure 12.

[0058] As shown in Figure 7, the bottom surface 2301 of the lower cover plate 230 is at a height equal to or higher than the bottom surface 2101 of the upper cover plate 210. Furthermore, the material of the lower cover plate 230 in this application is plastic. Compared to using metal as the lower cover plate 230, using plastic as the lower cover plate 230 facilitates the engagement of the latch 218 and the latch block 233, and also facilitates the movement of the limiting strip 2311. The limiting strip 2311 has better elasticity. To ensure the overall strength of the top and bottom hinges, both the upper cover plate 210 and the movable plate 220 are made of metal. Since the bottom surface of the lower cover plate 230 is flush with the bottom surface of the upper cover plate 210, the pressure exerted on the top and bottom hinges by the window sash 400 is borne by the bottom surface of the upper cover plate 210. The bottom surface of the upper cover plate 210 is in contact with the inner side of the window frame 300, so the lower cover plate 230 does not need to bear any pressure and only needs to fix the movable plate 220. Therefore, the top and bottom hinges of this application can better withstand the weight pressure of the window sash 400.

Claims

1. A quick-disassembly top and bottom hinge, characterized in that, The system includes a connecting block (100) and a base (200). A rotating shaft (110) is provided on the bottom surface of the connecting block (100). The base (200) includes an upper cover plate (210) and a sliding plate (220) slidably disposed relative to the upper cover plate (210). A strip-shaped hole (211) and a shaft groove (212) are provided on the top surface of the upper cover plate (210). The rotating shaft (110) is rotatably disposed in the shaft groove (212). A notch (213) is provided on the sidewall of the shaft groove (212) in the width direction of the upper cover plate (210), allowing the rotating shaft (110) to pass through. A limit plate (221) and a slider (222) are fixedly disposed on the sliding plate (220). The slider (222) passes through the strip-shaped hole (211) and is slidably disposed relative to the upper cover plate. The top surface of (210) is exposed, and the limiting plate (221) cooperates with the shaft groove (212) to block or avoid the notch (213); the moving plate (220) is provided with a limiting shaft (223), and the top and bottom shafts are provided with a limiting component (231). The limiting component (231) includes two spaced limiting strips (2311), and the space between the two limiting strips (2311) forms a strip-shaped limiting hole (2312). A strip-shaped clearance hole (2313) is provided on the side of the limiting strip (2311) away from the limiting hole (2312); the limiting shaft (223) is disposed in the limiting hole (2312), and the minimum width of the limiting hole (2312) is less than the width of the limiting shaft (223) so that the limiting shaft (223) can be held in the limiting hole (2312).

2. The quick-disassembly top and bottom hinge according to claim 1, characterized in that, A U-shaped enclosure (214) is provided on the top surface of the upper cover plate (210), and the U-shaped space of the enclosure (214) forms the shaft groove (212). The limiting plate (221) is provided on the side of the moving plate (220) and is L-shaped. A rectangular slot (215) is provided on the side of the upper cover plate (210), and the root of the limiting plate (221) is provided in the slot (215). The end face of one end of the enclosure (214) is flush with the side of the slot (215).

3. The quick-disassembly top and bottom hinge according to claim 1, characterized in that, It also includes a lower cover plate (230), and the bottom surface of the upper cover plate (210) is provided with a receiving groove (216) for accommodating the movable plate (220) and the lower cover plate (230), and the lower cover plate (230) presses the movable plate (220) in the receiving groove (216); the limiting member (231) is provided on the lower cover plate (230).

4. The quick-disassembly top and bottom hinge according to any one of claims 1-3, characterized in that, Both ends of the limiting hole (2312) are provided with arc-shaped notches (2314), which are used to accommodate the limiting shaft (223).

5. The quick-disassembly top and bottom hinge according to claim 3, characterized in that, The bottom surface of the limiting strip (2311) is higher than the bottom surface of the lower cover plate (230), so that the limiting strip (2311) is suspended in the air.

6. The quick-disassembly top and bottom hinge according to claim 3, characterized in that, The two side walls of the receiving groove (216) in the width direction are respectively provided with relief openings (217), and the two ends of the lower cover plate (230) in the width direction are respectively provided with protruding positioning strips (232), and the positioning strips (232) extend into the relief openings (217).

7. The quick-disassembly top and bottom hinge according to claim 3, characterized in that, The top surfaces of the receiving groove (216) at both ends of the upper cover plate (210) are provided with slots (218) that penetrate the top surface of the upper cover plate (210). The two ends of the lower cover plate (230) are provided with inverted L-shaped locking blocks (233). The free end of the locking block (233) can extend into the slot (218) to cooperate with the slot (218).

8. The quick-disassembly top and bottom hinge according to claim 7, characterized in that, At least one of the top surfaces of the card block (233) away from the lower cover plate (230) is rounded.

9. The quick-disassembly top and bottom hinge according to claim 3, characterized in that, The lower cover plate (230) is made of plastic, while the upper cover plate (210) and the movable plate (220) are both made of metal. The bottom surface height of the lower cover plate (230) is equal to or higher than the bottom surface of the upper cover plate (210).

10. A window, comprising a window frame (300), a window sash (400), and a top and bottom hinge as described in any one of claims 1-9, characterized in that, The base (200) is fixedly mounted on the window frame (300). The length direction of the base (200) is parallel to the length direction of the window frame (300), and the width direction of the base (200) is parallel to the width direction of the window frame (300). The connecting block (100) is fixedly mounted on the window sash (400), and the window sash (400) is rotatably mounted on the window frame (300) via the top and bottom shafts.

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