Knob unlocking type screen window capable of being automatically rolled

Abstract

The utility model discloses a knob unlocking type automatic rolling screen window which comprises a window frame assembly, an upper cover shell assembly, a winding drum assembly, a screen window curtain and a movable frame strip assembly, the upper cover shell assembly is fixedly installed at the upper end of the window frame assembly, and the winding drum assembly is rotatably installed in the upper cover shell assembly; a torsional spring mechanism used for driving the winding drum assembly to rotate is further installed in the upper cover shell assembly. Lock tongues are movably inserted into the two ends of the movable frame strip assembly, a lock block is further installed at the lower end of the window frame assembly, a lock groove used for being matched with the lock tongues is formed in the lock block, a rotary knob is further rotationally installed on the movable frame strip assembly, and the rotary knob drives the lock tongues to stretch out or retract back through a transmission mechanism. The automatic winding device is reasonable in structural design, and the automatic winding of the screen window curtain can be realized after the screen window curtain is unlocked; the movable frame strip assembly is reasonable in structural design, locking and limiting are facilitated, and the screen window curtain is kept in a stable and reliable closed state.

Description

Technical Field

[0001] The utility model relates to the technical field of screen windows, in particular to a knob-unlocking type automatically retractable screen window. Background Art

[0002] Existing sliding screens are made by attaching a screen frame to an existing glass window frame. This creates a screen, which is a repeated use of materials. This not only wastes materials but also increases manufacturing and installation costs. Therefore, designing an invisible screen that can effectively reduce material waste and is easy to install is of great significance to improving corporate competitiveness and market share.

[0003] For example, the Chinese utility model patent (authorization announcement number: CN213297788U, authorization announcement date: 2021.05.28) discloses an invisible screen for sliding windows. The above scheme can reduce the installation of the existing screen mounting frame by providing a retractable structure on the screen body, thereby helping to reduce the elongation and installation costs. At the same time, the retractable screen structure is easy to use and can effectively improve the utilization of space. In addition, the mounting seat and the screen body are adsorbed and fixed by using adsorption magnets, which is convenient for removal and installation, easy to install, and more flexible to use.

[0004] In the above scheme, when the magnet adsorbs and fixes the gauze curtain, the restoring force of the coil spring is the largest at this time, and the restoring force often offsets part of the adsorption force of the magnet. If the adsorption force of the magnet is not strong enough, the gauze curtain will easily be detached by the magnet when touched by external force, and then the gauze curtain will quickly retract. The locking effect of the gauze curtain is relatively unstable and unreliable. Utility Model Content

[0005] The purpose of the utility model is to provide a knob-unlocking automatic retractable screen window to solve the problems raised in the above background technology.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] A knob-unlocking, automatically retractable screen window comprises a window frame assembly, an upper cover assembly, a drum assembly, a screen curtain and a movable frame strip assembly, wherein the upper cover assembly is fixedly mounted on the upper end of the window frame assembly, and the drum assembly is rotatably mounted inside the upper cover assembly; a torsion spring mechanism for driving the drum assembly to rotate is also installed inside the upper cover assembly; the upper end of the screen curtain is wound around the drum assembly, and the lower end of the screen curtain is fixedly mounted in the movable frame strip assembly, and both ends of the movable frame strip assembly are slidably fitted in the corresponding vertical profiles of the window frame assembly; lock tongues are movably inserted at both ends of the movable frame strip assembly, and a lock block is also mounted at the lower end of the window frame assembly, with a lock groove for cooperating with the lock tongue on the lock block; a knob is also rotatably mounted on the movable frame strip assembly, and the knob drives the lock tongue to extend or retract through a transmission mechanism.

[0008] Preferably, the window frame assembly further comprises a bottom profile and a pair of corner fasteners, both ends of the bottom profile are fixedly connected to the corresponding vertical profiles via the corner fasteners, and the locking block is inserted into the corner fasteners.

[0009] Preferably, the upper cover shell assembly includes an upper cover shell, and the two ends of the upper cover shell are respectively fixedly installed with a left end seat plate and a right end seat plate, and the upper ends of the vertical profiles corresponding to the window frame assembly are respectively assembled and fixed with the left end seat plate and the right end seat plate.

[0010] Preferably, the roller assembly includes a roller for winding the gauze curtain, and roller end covers are fixedly installed on both ends of the roller.

[0011] Preferably, the torsion spring mechanism includes an intermediate rotating shaft, an intermediate supporting disk and a torsion spring, an intermediate supporting disk is rotatably installed in the middle of the intermediate rotating shaft, the intermediate supporting disk is limitedly inserted inside the reel, and the two ends of the intermediate rotating shaft are respectively docked and fixed with shaft sleeve parts, and the reel end cover is rotatably fitted on the corresponding shaft sleeve part; the right end seat plate fork shaft for limiting docking with the shaft sleeve part is rotatably installed on the inner side of the right end seat plate, and the right seat plate fork shaft is also equipped with a right end plate for limiting the side edge of the gauze curtain; the fixed end plate is fixedly installed on the inner side of the left end seat plate, and the left end plate fork shaft for limiting docking with the shaft sleeve part is rotatably installed at the center of the fixed end plate; the torsion spring is fitted on the intermediate rotating shaft, one end of the torsion spring is fixedly connected to the shaft sleeve part on the left, and the other end of the torsion spring is fixedly connected to the intermediate supporting disk; it also includes an adjustment and locking mechanism for adjusting and locking the torsion spring.

[0012] Preferably, the adjustment locking mechanism includes an adjusting worm gear rotatably installed between the left end seat plate and the fixed end disk, and the shaft end of the adjusting worm gear is connected to the fork shaft of the left end disk; a worm shaft is also rotatably installed between the left end seat plate and the fixed end disk, the worm shaft is meshed with the adjusting worm gear, and a screwdriver groove is provided at the outer end of the worm shaft.

[0013] Preferably, the movable frame bar assembly includes a movable frame shell profile, the knob is rotatably installed in the middle of the movable frame shell profile, and a driving gear is provided inside the movable frame shell profile to connect with the axial end of the knob; end plug-ins are fixed at both ends of the movable frame shell profile, and the lock tongue is laterally movably inserted in the end plug-in.

[0014] Preferably, the transmission mechanism includes a pair of gear conditions, both of which are meshed with the driving gear, with an end seat portion extending from one end of the gear condition and a guide rod portion extending from the other end of the gear condition; the guide rod portion of one gear condition is slidably fitted on the end seat portion of the other gear condition; and the lock tongues are respectively docked and fixed with the corresponding gear conditions.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. The structure of the movable frame strip assembly is reasonably designed. The lock tongues at both ends are inserted into the corresponding lock slots to achieve a good limiting and fixing effect, ensuring that the gauze curtain can be in a stable and reliable locked state. The locking limit operation is easy to operate, so that the gauze curtain can remain in a stable and reliable closed state.

[0017] 2. The spring torque of the torsion spring mechanism is applied to the reel assembly. When the lock tongue of the movable frame assembly is disengaged from the lock block, the reel assembly automatically rotates under the action of the spring torque, thereby realizing the automatic retraction of the gauze curtain. At this time, the window frame assembly is fully opened, and the ventilation effect is better;

[0018] 3. The structural design of the adjustable locking mechanism is reasonable. Users can adjust the spring torque applied by the torsion spring on the reel according to their own needs, and the adjustment operation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of a knob-unlocking and automatically retractable screen window;

[0020] Figure 2 This is a rear view structural diagram of a knob unlocking type automatically retractable screen window;

[0021] Figure 3 It is a knob unlocking type automatic retractable screen window. Figure 2 Schematic diagram of the structure of the AA section;

[0022] Figure 4 This is a schematic diagram of the structure of a knob-unlockable, automatically retractable screen window after it is partially unfolded;

[0023] Figure 5 This is a schematic diagram of the three-dimensional structure of a knob-unlockable automatic retractable screen window after the reel assembly is unfolded from a first-person perspective;

[0024] Figure 6 This is a schematic diagram of the three-dimensional structure of a knob-unlockable automatic retractable screen window after the reel assembly is unfolded from a second perspective;

[0025] Figure 7 This is a schematic cross-sectional view of a reel assembly in a knob-unlockable, automatically retractable screen window.

[0026] Figure 8 The diagram is a three-dimensional structural diagram of a partially unfolded movable frame strip assembly in a knob-unlockable, automatically retractable screen window.

[0027] In the figure: 100-gauze curtain, 1-window frame assembly, 11-vertical profile, 12-bottom profile, 13-corner piece, 2-upper cover assembly, 21-upper cover, 22-right end seat plate, 221-right seat plate fork shaft, 23-left end seat plate, 24-reel, 241-reel end cover, 25-middle shaft, 251-middle support plate, 252-sleeve part, 26-right end plate, 27 -Fixed end plate, 271-left end plate fork shaft, 28-torsion spring, 3-movable frame bar assembly, 31-rear knob, 32-movable frame shell profile, 321-end plug-in, 33-front knob, 34-clamping strip, 35-lock tongue, 36-tooth condition, 361-end seat part, 362-guide rod part, 4-worm shaft, 41-screwdriver slot, 42-adjusting worm gear, 5-lock block, 51-lock slot. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] See also Figures 1 to 8 The utility model provides a technical solution: a knob-unlocking, automatically retractable screen window, comprising a window frame assembly 1, an upper cover assembly 2, a roller assembly, a screen curtain 100, and a movable frame strip assembly 3. The upper cover assembly 2 is fixedly mounted on the upper end of the window frame assembly 1, and the roller assembly is rotatably mounted inside the upper cover assembly 2.

[0030] The upper cover assembly 2 is further provided with a torsion spring mechanism for driving the reel assembly to rotate; the upper end of the gauze curtain 100 is wound and mounted on the reel assembly, and the lower end of the gauze curtain 100 is fixedly mounted in the movable frame strip assembly 3, and the two ends of the movable frame strip assembly 3 are slidably fitted in the corresponding vertical profiles 11 of the window frame assembly 1;

[0031] Lock tongues 35 are movably installed at both ends of the movable frame bar assembly 3, and a lock block 5 is also installed at the lower end of the window frame assembly 1. The lock block 5 has a lock groove 51 for cooperating with the lock tongue 35. A knob is also rotatably installed on the movable frame bar assembly 3, and the knob drives the lock tongue 35 to extend or retract through a transmission mechanism.

[0032] The working principle of the present invention is as follows: the spring torsion force of the torsion spring mechanism is applied to the reel assembly for winding. When the lock tongue 35 of the movable frame strip assembly 3 is disengaged from the lock block 5, the reel assembly automatically rotates under the action of the spring torsion force, thereby realizing automatic winding of the gauze curtain 100. At this time, the window frame assembly 1 is fully opened, and the ventilation effect is better; when it needs to be closed, the spring torsion force is overcome and the movable frame strip assembly 3 is pulled downward. After the movable frame strip assembly 3 drops to the bottom, the knob is rotated to make the lock tongue 35 insert into the lock groove 51, thereby realizing the locking of the movable frame strip assembly 3. The lock tongues 35 at both ends are plugged into the corresponding lock grooves 51 to achieve a good limiting and fixing effect, ensuring that the gauze curtain 100 can be in a stable and reliable locked state.

[0033] Furthermore, the window frame assembly 1 further includes a bottom profile 12 and a pair of corner fasteners 13 . Both ends of the bottom profile 12 are fixedly connected to the corresponding vertical profiles 11 via the corner fasteners 13 , and the locking block 5 is inserted into the corner fasteners 13 .

[0034] In this embodiment, the upper cover shell assembly 2 includes an upper cover shell 21, and the two ends of the upper cover shell 21 are respectively fixed with a left end seat plate 23 and a right end seat plate 22, and the upper ends of the vertical profiles 11 corresponding to the window frame assembly 1 are respectively assembled and fixed with the left end seat plate 23 and the right end seat plate 22.

[0035] The roller assembly includes a roller 24 for winding the gauze curtain 100 , and roller end covers 241 are fixedly mounted on both ends of the roller 24 .

[0036] As a specific solution, the torsion spring mechanism includes an intermediate rotating shaft 25, an intermediate support disk 251, and a torsion spring 28. The intermediate support disk 251 is rotatably mounted in the middle of the intermediate rotating shaft 25. The intermediate support disk 251 is limitedly inserted into the interior of the reel 24. The two ends of the intermediate rotating shaft 25 are respectively fixed with shaft sleeves 252. The reel end cover 241 is rotatably fitted on the corresponding shaft sleeve 252.

[0037] The right end seat plate 22 is rotatably mounted on the inner side thereof with a right seat plate fork shaft 221 for limiting the docking with the shaft sleeve portion 252. The right end plate 26 for limiting the side edge of the gauze curtain 100 is also mounted on the right seat plate fork shaft 221.

[0038] A fixed end plate 27 is fixedly mounted on the inner side of the left end base plate 23, and a left end plate fork shaft 271 is rotatably mounted on the center of the fixed end plate 27 for limited docking with the shaft sleeve portion 252;

[0039] The torsion spring 28 is sleeved on the intermediate rotating shaft 25 , one end of the torsion spring 28 is fixedly connected to the shaft sleeve portion 252 on the left side, and the other end of the torsion spring 28 is fixedly connected to the intermediate supporting plate 251 .

[0040] The torsion spring mechanism of the present invention has a reasonable structural design. During operation, the reel 24, the reel end cover 241 and the intermediate support disk 251 can rotate relative to the sleeve portion 252 and the intermediate rotating shaft 25; when the sleeve portion 252 and the intermediate rotating shaft 25 are in a locked state, the torsion spring 28 can apply spring torsion to the intermediate support disk 251 and the reel 24.

[0041] This embodiment also includes an adjustment locking mechanism for adjusting and locking the torsion spring 28, and the adjustment locking mechanism includes an adjustment worm gear 42 rotatably installed between the left end seat plate 23 and the fixed end disk 27, and the shaft end of the adjustment worm gear 42 is docked with the left end disk fork shaft 271; a worm shaft 4 is also rotatably installed between the left end seat plate 23 and the fixed end disk 27, and the worm shaft 4 is meshed with the adjustment worm gear 42, and a screwdriver groove 41 is provided at the outer end of the worm shaft 4.

[0042] The working principle of the adjustment locking mechanism is: when it is necessary to adjust the spring torque applied by the torsion spring 28 to the reel 24, the user can rotate the worm shaft 4 with a screwdriver, and the rotating worm shaft 4 will drive the adjustment worm wheel 42, the left end fork shaft 271 and the left sleeve part 252 to rotate forward or reverse in turn, that is, pull the left end of the torsion spring 28 to rotate forward or reverse, thereby adjusting the torque of the torsion spring 28.

[0043] After the adjustment is completed, since the worm wheel and the worm have a certain reverse self-locking function, the left sleeve portion 252 and the intermediate rotating shaft 25 can be locked.

[0044] As a further specific solution, the movable frame strip assembly 3 includes a movable frame shell profile 32, a knob is rotatably mounted in the middle of the movable frame shell profile 32, and a drive gear (obscured in the figure) is provided inside the movable frame shell profile 32 and docked with the shaft end of the knob. In this embodiment, the knob specifically includes a front knob 33 and a rear knob 31, and the front knob 33 and the rear knob 31 are both docked and assembled with the middle drive gear; end plug-ins 321 are fixed at both ends of the movable frame shell profile 32, and the lock tongue 35 is laterally movably inserted into the end plug-ins 321. A clamping strip 34 is also fixedly installed between the two end plug-ins 321, and the clamping strip 34 is used to clamp the bottom side of the gauze curtain 100.

[0045] In which, the transmission mechanism includes a pair of gear conditions 36, each of which is meshed with the driving gear. An end seat portion 361 extends from one end of the gear condition 36, and a guide rod portion 362 extends from the other end of the gear condition 36; the guide rod portion 362 of one gear condition 36 is slidably fitted on the end seat portion 361 of the other gear condition 36; the locking tongue 35 is respectively docked and fixed with the corresponding gear condition 36.

[0046] Obviously, in order to realize the automatic extension of the lock tongue 35, a return spring (not shown in the figure) can also be installed on the guide rod part 362, one end of the return spring contacts the step of the guide rod part 362, and the other end of the return spring contacts the end seat part 361. Under the elastic force of the return spring, the lock tongue 35 can remain in the extended state.

[0047] When unlocking, the elastic force of the return spring is overcome and the front knob 33 or the rear knob 31 is rotated. The driving gear connected to the front knob 33 and the rear knob 31 can be rotated, and the rotating driving gear can drive the gear condition 36 to move inward, thereby retracting the lock tongue 35.

[0048] The utility model has a reasonable structural design, and can realize automatic retraction of the gauze curtain 100 after releasing the lock; the movable frame strip assembly 3 has a reasonable structural design, which is convenient for locking and limiting, so that the gauze curtain 100 maintains a stable and reliable closed state.

[0049] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A knob unlocking type automatically retractable screen window, characterized in that: It comprises a window frame assembly (1), an upper cover assembly (2), a roller assembly, a gauze curtain (100) and a movable frame strip assembly (3), wherein the upper cover assembly (2) is fixedly mounted on the upper end of the window frame assembly (1), and the roller assembly is rotatably mounted inside the upper cover assembly (2); A torsion spring mechanism for driving the reel assembly to rotate is also installed inside the upper cover assembly (2); The upper end of the gauze curtain (100) is wound and mounted on a reel assembly, the lower end of the gauze curtain (100) is fixedly mounted in a movable frame strip assembly (3), and both ends of the movable frame strip assembly (3) are slidably mounted in the corresponding vertical profile (11) of the window frame assembly (1); Lock tongues (35) are movably inserted at both ends of the movable frame strip assembly (3), and a lock block (5) is also installed at the lower end of the window frame assembly (1). The lock block (5) has a lock groove (51) for cooperating with the lock tongue (35). The movable frame strip assembly (3) is also rotatably installed with a knob, and the knob drives the lock tongue (35) to extend or retract through a transmission mechanism.

2. A knob unlocking type automatically retractable screen window according to claim 1, characterized in that: The window frame assembly (1) also includes a bottom profile (12) and a pair of corner pieces (13), the two ends of the bottom profile (12) are fixedly connected to the corresponding vertical profile (11) via the corner pieces (13), and the locking block (5) is inserted into the corner pieces (13).

3. A knob unlocking type automatic retractable screen window according to claim 2, characterized in that: The upper cover shell assembly (2) comprises an upper cover shell (21), and a left end seat plate (23) and a right end seat plate (22) are respectively fixedly mounted at both ends of the upper cover shell (21), and the upper ends of the vertical profiles (11) corresponding to the window frame assembly (1) are respectively assembled and fixed to the left end seat plate (23) and the right end seat plate (22).

4. The knob unlocking type automatic retractable screen window according to claim 3, characterized in that: The roller assembly comprises a roller (24) for winding a gauze curtain (100), and roller end covers (241) are respectively fixedly mounted on both ends of the roller (24).

5. The knob unlocking type automatic retractable screen window according to claim 4, characterized in that: The torsion spring mechanism comprises an intermediate rotating shaft (25), an intermediate supporting disk (251) and a torsion spring (28); the intermediate supporting disk (251) is rotatably mounted in the middle of the intermediate rotating shaft (25); the intermediate supporting disk (251) is limitedly inserted inside the reel (24); shaft sleeves (252) are respectively fixedly connected at both ends of the intermediate rotating shaft (25); and the reel end cover (241) is rotatably fitted on the corresponding shaft sleeve (252); A right seat plate fork shaft (221) for limiting the position of the shaft sleeve (252) is rotatably mounted on the inner side of the right end seat plate (22), and a right end plate (26) for limiting the position of the side edge of the gauze curtain (100) is also mounted on the right seat plate fork shaft (221); A fixed end disc (27) is fixedly mounted on the inner side of the left end seat plate (23), and a left end disc fork shaft (271) for limitedly docking with the shaft sleeve portion (252) is rotatably mounted at the center of the fixed end disc (27); The torsion spring (28) is sleeved on the intermediate rotating shaft (25), one end of the torsion spring (28) is fixedly connected to the shaft sleeve portion (252) on the left side, and the other end of the torsion spring (28) is fixedly connected to the intermediate supporting plate (251); Also included is an adjustment and locking mechanism for adjusting and locking the torsion spring (28).

6. The knob unlocking type automatic retractable screen window according to claim 5, characterized in that: The adjusting locking mechanism comprises an adjusting worm wheel (42) rotatably mounted between the left end seat plate (23) and the fixed end plate (27), and the shaft end of the adjusting worm wheel (42) is butted against the left end plate fork shaft (271); A worm shaft (4) is rotatably mounted between the left end seat plate (23) and the fixed end plate (27). The worm shaft (4) is meshingly connected with the adjusting worm wheel (42), and a screwdriver groove (41) is provided at the outer end of the worm shaft (4).

7. A knob unlocking type automatic retractable screen window according to any one of claims 1 to 6, characterized in that: The movable frame bar assembly (3) comprises a movable frame shell profile (32), the knob is rotatably mounted in the middle of the movable frame shell profile (32), and a driving gear is arranged inside the movable frame shell profile (32) and is connected to the shaft end of the knob; End inserts (321) are butt-jointed and fixed at both ends of the movable frame shell profile (32), and the locking tongue (35) is transversely and movably inserted into the end inserts (321).

8. The knob unlocking type automatic retractable screen window according to claim 7, characterized in that: The transmission mechanism comprises a pair of gear members (36), each of the gear members (36) is meshedly connected with the driving gear, an end seat portion (361) is extended from one end of the gear member (36), and a guide rod portion (362) is extended from the other end of the gear member (36); The guide rod portion (362) of one of the gear conditions (36) is inserted and slidably fitted on the end seat portion (361) of the other gear condition (36); The locking tongues (35) are respectively butted and fixed with corresponding tooth conditions (36).

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