Transverse automatic rewinding screen door

Abstract

The utility model discloses a transverse automatic rollback screen door which comprises an upper sliding rail, a lower sliding rail, a winding drum assembly, a side rail assembly and screen door cloth, the winding drum assembly comprises a core pipe, an upper winding drum cover combination, a lower winding drum cover combination and a transmission shaft, one side of the screen door cloth is connected to the core pipe and can be rolled up or unfolded on the core pipe, and the other side of the screen door cloth is connected to the side rail assembly. The other side of the screen door cloth can be fixedly connected with the side rail assembly, a transmission combination is arranged in the core pipe and comprises a spring, and when the screen door cloth is unfolded, the core pipe rotates through a special structure to rotate and tighten the spring to generate reverse torsion. The screen door cloth can be automatically retracted into the screen door provided with the automatic retraction device, and manpower is not needed any more.

Description

TECHNICAL FIELD

[0001] The utility model relates to a screen door assembly for a window or a door opening / door hole, in particular to a design scheme that enables screen door material to automatically retract into a winding drum after being extended open. BACKGROUND

[0002] Screen doors are essential in every household in modern life, mainly used to block mosquitoes, flies and insects, and reduce dust such as flying lint from entering the room. With the improvement of modern living quality, people's demand for screen doors is becoming more and more urgent.

[0003] The mainstream screen door assembly at present is mainly extended / retracted in the vertical direction, by setting a transmission combination (such as an elastic component) in the winding drum assembly, a tension opposite to the extension direction is generated when the screen door material is extended open, so as to realize the automatic retraction of the screen door material. However, since the vertical screen door assembly needs to overcome the gravity and friction of the screen door material itself during the retraction of the winding drum, if it is applied to a larger opening area, the gravity generated by the larger area of the screen door material will greatly exceed the reverse tension of the winding drum assembly, resulting in that the screen door assembly cannot be automatically retracted.

[0004] The screen door assembly currently applied to a larger opening area mainly uses horizontal movement to extend / retract, which can avoid the additional overcoming of the gravity of the screen door material itself during the retraction of the screen door assembly. However, the horizontal screen door assembly often needs to meet the function of being able to be partially extended and stably maintained in this state, in order to adapt to different application occasions (for example, the screen door assembly applied to a door hole, the screen door material can be partially extended, a certain opening is reserved between the front end of the screen door material and the side frame of the door hole, to facilitate the passage of personnel). Such screen door assembly often does not have the function of automatic retraction, and needs to rely on the external force of a person to retract the screen door material into the winding drum assembly (for example, by applying a balanced force through a linear member and a pulley structure), and if the screen door material is completely retracted, a person needs to perform tedious operation, causing inconvenience.

[0005] Therefore, it is of important economic value to develop a screen door assembly with automatic retraction function and capable of meeting the application requirement of partially opening the screen door. CONTENT OF THE UTILITY MODEL

[0006] The utility model aims at providing a horizontal back-rolling screen door capable of automatic retraction, which can be fixed at different opening degrees when the screen cloth is in an extended state.

[0007] To achieve the above-mentioned purpose, the technical scheme of the utility model is as follows: a horizontal automatic back-rolling screen door, comprising an upper sliding rail, a lower sliding rail, a winding drum assembly, a side rail assembly and a screen cloth.

[0008] The yarn door cloth is connected to the core pipe on one side and can be rolled up or unfolded on the core pipe, and the other side of the yarn door cloth can be fixedly connected with the edge rail assembly when the yarn door assembly is completely unfolded, and the yarn door cloth slides in the upper slide rail and the lower slide rail during unfolding / rolling up, characterized in that a transmission assembly is arranged in the core pipe, the transmission assembly comprises a spring, the upper and lower ends of the spring are fixedly connected with a cylindrical upper fixed end and a lower fixed end respectively, a groove is longitudinally arranged on the inner surface of the core pipe, the outer surface of the lower fixed end is longitudinally provided with a protruding structure corresponding to the groove and embedded in the groove, the upper fixed end is fixedly connected to the upper reel cover assembly, the core pipe is rotatable relative to the upper fixed end, and the core pipe is rotatably connected with the upper reel cover assembly and the lower reel cover assembly through the transmission shaft; when the yarn door cloth is unfolded, the rotation of the core pipe drives the lower fixed end to rotate, the upper fixed end of the spring is stationary, the lower fixed end drives the spring to rotate to generate a reverse torsion, and when the yarn door cloth is rolled up, the reverse torsion drives the core pipe to reversely rotate to automatically roll up the yarn door cloth into the reel assembly.

[0009] The present utility model mainly aims at the existing transverse back-rolling yarn door which needs external force to roll up the yarn door cloth into the reel assembly. The back-rolling yarn door utilizes the reverse torsion generated by the spring during rotation, which is transmitted to the core pipe through the lower fixed end, and then the yarn door cloth is rolled up into the reel assembly by the rotation of the core pipe. Such a structure makes the reverse rotation torsion generated by the elastic assembly as the driving force to automatically wind the yarn door cloth on the core pipe when rolling up the yarn door cloth into the reel assembly, and no additional manpower is needed.

[0010] According to the transverse automatic back-rolling yarn door, preferably, the upper fixed end is detachably fixedly connected with the upper reel cover assembly, the upper fixed end is separated from the upper reel cover assembly, the upper fixed end is axially rotated by a certain angle (for example, 2 turns in the opposite direction of the tight spring), and then the upper fixed end is fixedly connected with the upper reel cover assembly, so that the initial tight force of the spring is reduced, and when the yarn door cloth is unfolded again, no matter how much the yarn door cloth is unfolded, the reverse torsion formed by the elastic assembly is smaller than the previous level, and the friction resistance generated by the yarn door cloth remains unchanged, so when the reverse torsion is reduced to a certain degree, the yarn door cloth stops moving at a certain position where the reverse torsion and the friction resistance are balanced, and the balance position realizes the local opening of the yarn door.

[0011] According to the transverse automatic back-rolling yarn door, preferably, a handle is arranged on the edge of the yarn door cloth close to the edge rail assembly, and a magnetic material is arranged on the outer side of the handle, the edge rail assembly is made of metal material, and the magnetic material fixes the edge of the yarn door cloth and the edge rail assembly by magnetic force when the yarn door cloth is completely unfolded, so that the yarn door cloth is fixed at the position.

[0012] The hand handle and the screen cloth have the same length, an upper pulley set is fixed on the upper end of the hand handle, the upper pulley set slides along the upper slide rail, and the friction generated in the sliding process of the screen cloth is reduced.

[0013] The screen cloth is made of insect-proof screen cloth.

[0014] The screen door has the advantages that:

[0015] The screen door can be automatically retracted, complicated operation by external force is avoided, and the operation convenience of the window is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is an exploded schematic view of the screen door.

[0017] In the figure, 1 is an upper slide rail, 2 is a lower slide rail, 3 is an edge rail assembly, 4 is a screen cloth, 5 is a core pipe, 6 is an upper winding drum cover combination, 7 is a lower winding drum cover combination, 8 is a transmission shaft, 9 is a spring, 10 is an upper fixed end, 11 is a lower fixed end, 12 is a hand handle, 13 is a magnetic strip, and 14 is an upper pulley set. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the screen door will be clearly and completely described below with reference to the drawings.

[0019] Embodiments

[0020] As Figure 1As shown, a kind of transverse automatic back roll screen door, including upper slide rail 1, lower slide rail 2, reel assembly, side rail assembly 3 and screen cloth 4, wherein the reel assembly includes core tube 5, upper reel cover combination 6, lower reel cover combination 7 and transmission shaft 8, one side of screen cloth 4 is connected on core tube 5, and can be rolled up or unfolded on core tube 5, the other side of screen cloth 4 can be fixedly connected with side rail assembly 3 when screen door assembly is completely unfolded, screen cloth 4 slides in upper slide rail 1 and lower slide rail 2 during unfolding / contracting, it is characterized in that, transmission combination is arranged in core tube 5, transmission combination includes spring 9, the upper and lower ends of spring 9 are fixedly connected with cylindrical upper fixed end 10 and lower fixed end 11 respectively, recess is arranged on the inner surface of core tube 5 longitudinally, the outer side surface of lower fixed end 11 is longitudinally provided with protruding structure corresponding to recess and embedded in recess, upper fixed end 10 is fixedly connected to upper reel cover combination, core tube 5 is rotatable relative to upper fixed end 10, core tube 5 is rotatably connected with upper reel cover combination 6 and lower reel cover combination 7 by transmission shaft 8, when screen cloth 4 is unfolded, the rotation of core tube 5 will drive lower fixed end 11 to rotate, since spring upper fixed end 10 is stationary, lower fixed end 11 drives spring 9 to rotate and generates reverse spring force, when screen cloth 4 is retracted, the reverse torsion of the reverse torsion can drive core tube 5 to rotate reversely, and screen cloth 4 is automatically retracted into reel assembly.

[0021] The size of the reverse torsion generated by the elastic component in transmission combination can be adjusted;Upper fixed end 10 is detachably fixedly connected relative to upper reel cover combination 6, first, upper fixed end 10 is separated from upper reel cover combination 6, upper fixed end 10 is axially rotated by a certain angle (for example, 2 weeks in the opposite direction of tight spring), then upper fixed end 10 is fixedly connected with upper reel cover combination 6, so that the initial tightness of spring 9 is reduced, when screen cloth 4 is unfolded again, no matter how much screen cloth 4 is unfolded, the reverse torsion formed by elastic component is smaller than the level before adjustment, since the frictional resistance generated by screen cloth 4 is unchanged, when the reverse torsion is reduced to a certain degree, the reverse torsion and frictional force are balanced at a certain position of screen cloth 4, screen cloth 4 no longer moves, and this balance position realizes the partial opening of screen door.

[0022] The described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the present application.

Claims

1. A transverse automatic retraction screen door comprising an upper slide rail (1), a lower slide rail (2), a winding drum assembly, a side rail assembly (3) and a screen cloth (4), the winding drum assembly comprising a core tube (5), an upper winding drum cover assembly (6), a lower winding drum cover assembly (7) and a transmission shaft (8), one side of the screen cloth (4) being connected to the core tube (5) and being capable of being wound up or unwound on the core tube (5), the other side of the screen cloth (4) being capable of being fixedly connected to the side rail assembly (3), the screen cloth (4) sliding in the upper slide rail (1) and the lower slide rail (2) during the unwinding / winding up process, characterized in that, A transmission assembly is arranged inside the core tube (5), the transmission assembly comprises a spring (9), the upper and lower ends of the spring (9) are fixedly connected with a cylindrical upper fixed end (10) and a lower fixed end (11) respectively, a groove is longitudinally arranged on the inner surface of the core tube (5), the outer surface of the lower fixed end (11) is longitudinally provided with a protruding structure corresponding to the groove and embedded in the groove, the upper fixed end (10) is fixedly connected to the upper winding drum cover assembly (6), the core tube (5) is rotatable relative to the upper fixed end (10), the core tube (5) is rotatably connected to the upper winding drum cover assembly (6) and the lower winding drum cover assembly (7) through a transmission shaft (8), when the screen door cloth (4) is unfolded, the rotation of the core tube (5) drives the lower fixed end (11) to rotate, since the upper fixed end (10) of the spring is stationary, the lower fixed end (11) drives the spring (9) to rotate to generate a reverse elastic force.

2. The lateral automatic retraction screen door of claim 1, wherein, The upper fixed end (10) is detachably fixedly connected to the upper winding drum cover assembly (6), the initial tension of the spring (9) is changed by rotating the upper fixed end (10) axially by a certain angle, and then the upper fixed end (10) is fixedly connected to the upper winding drum cover assembly (6), so that the size of the maximum torsion force that can be generated by the elastic assembly is adjusted, and the screen door cloth (4) can be fixed at different extension positions.

3. The lateral automatic retraction screen door of claim 1, wherein, A handle (12) is arranged on the edge of the screen door cloth (4) close to the edge rail assembly, a magnetic material (13) is arranged on the outer side of the handle (12), the edge rail assembly (3) is made of metal material, and the handle (12) is fixedly connected to the edge rail assembly (3) through the magnetic material (13).

4. The lateral automatic retraction screen door of claim 3, wherein, The handle (12) has the same length as the side edge of the screen door cloth (4), an upper pulley set (14) is fixedly arranged on the upper end of the handle (12), and the upper pulley set (14) slides along the upper sliding rail (1).

5. The automatic horizontal screen door according to any one of claims 1-4, characterized in that, The screen door cloth (4) is made of insect-proof screen cloth.

Images