Trackless detachable and washable wind-resistant rollback screen door of circulating system

Abstract

The utility model relates to the technical field of rollback screen doors, and particularly discloses a circulating system trackless detachable and washable wind-resistant rollback screen door which comprises a horizontally arranged upper frame assembly, a left edge strip detachably arranged on the lower portion of the left end of the upper frame assembly, a screen box detachably arranged on the lower portion of the right end of the upper frame assembly, and a screen window net assembly rotationally arranged in the screen box. A bottom strip is arranged between the bottom of the left strip and the bottom of the screen window box, a pull rod assembly is slidably arranged between the upper frame assembly and the bottom strip, the inward side of the pull rod assembly is connected with one end of the screen window net assembly, an upper positioning chain is slidably arranged in the upper frame assembly, and a lower bottom chain is slidably arranged in the pull rod assembly. The sealing performance of the upper end and the lower end of the gauze element is improved, the special design that the upper positioning chain is clamped on the front side and the rear side in the silence slide way and among the four silence strips on the top enables the chain not to droop, and the system stability is higher. The gauze element can be sealed up and down, so that the sealing performance is improved, and the anti-mosquito effect is better.

Description

TECHNICAL FIELD

[0001] The utility model relates to a back -rolling screen door technical field, concretely is a circulating system trackless detachable washing wind -resisting back -rolling screen door. BACKGROUND

[0002] The back -rolling screen door is a screen door that can roll back screen, has the characteristics such as ventilation and mosquito prevention, space saving, beautiful and practical.

[0003] Chinese patent CN218882105U discloses a double chain back -rolling screen door, including: stand, first cavity that is open right is equipped with in the stand, the first cavity is rotatably connected with the reel in, chain group, including first chain and second chain arranged in up and down, the left end of first chain and the left end of second chain are connected with the upper end and the lower end of stand respectively, pull rod, second cavity is equipped with in the pull rod, the right end of first chain and the right end of second chain are respectively inserted into the upper end and the lower end of second cavity, the upper end and the lower end of second cavity are rotatably connected with the fixed pulley, and the connecting rope is wound between the two fixed pulleys, and the first chain and the second chain are arranged on the left and right sides of the connecting rope and are connected with the connecting rope, and the arrangement of first chain and second chain is conducive to improving the safety of pedestrian access.

[0004] The first chain and the second chain are arranged in the first cavity, so that the volume and the quality of the stand are inevitably increased, thereby affecting the maneuverability and the aesthetic degree. UTILITY MODEL CONTENTS

[0005] To solve the above problems, the utility model adopts the following technical scheme.

[0006] A circulating system trackless detachable washing wind -resisting back -rolling screen door, including, the upper frame assembly of horizontal arrangement, the left end lower part detachable of upper frame assembly is provided with left edge strip, the lower part detachable of upper frame assembly right end is provided with screen box, the screen window net assembly is rotatably arranged in the screen box, the bottom strip is arranged between the bottom of left edge strip and screen window box, the pull rod assembly is slidably arranged between the upper frame assembly and bottom strip, the one side of pull rod assembly towards inside is connected with one end of screen window net assembly, the upper positioning chain is slidably arranged in the upper frame assembly, one end of upper positioning chain is connected with the upper end of pull rod assembly, the other end of upper positioning chain extends from the right side of upper frame assembly to the screen box, the lower bottom chain is slidably arranged in the pull rod assembly, one end of lower bottom chain is provided with terminal piece, and the terminal piece slides in the pull rod assembly, and the other end of lower bottom chain extends from the bottom of pull rod assembly to right and is connected with the bottom of screen box.

[0007] As preferred, the upper frame assembly comprises an upper cross beam, a cavity one is arranged in the upper cross beam, a cross beam terminal is arranged on the left side of the upper cross beam, the lower end of the cross beam terminal is inserted into the upper part of the left strip, a mute slide is arranged on the upper part of the cavity one, mute strips are arranged on the front and back sides and the top of the mute slide, and the upper positioning chain is clamped between the mute strips on the front and back sides and the top of the mute slide.

[0008] As preferred, the screen net assembly comprises a winding drum, a screen net is arranged on the outer part of the winding drum, and positioning members are arranged on the upper and lower ends of the winding drum.

[0009] As preferred, the screen box is provided with an upper connecting member at the top, an upper end cover is detachably arranged on the top of the upper connecting member, a rotating shaft one is vertically arranged on the lower end of the upper end cover, the rotating shaft one penetrates through the upper connecting member and is inserted into the upper positioning member, a bearing is arranged between the rotating shaft one and the positioning member, a lower connecting member is arranged at the bottom of the screen box, a lower end cover is detachably arranged on the bottom of the lower connecting member, a rotating shaft two is vertically arranged on the upper end of the upper end cover, the rotating shaft two penetrates through the lower connecting member and is inserted into the lower positioning member, a bearing is also arranged between the rotating shaft two and the positioning member, and the right end of the lower bottom chain is connected with the lower connecting member.

[0010] As preferred, the upper end of the upper connecting member is detachably provided with a screen box upper cover, and the left side of the screen box upper cover is inserted into the left end of the upper cross beam.

[0011] As preferred, the pull rod assembly comprises a large pull rod, a cavity two is arranged in the large pull rod, one end of the lower bottom chain is arranged in the cavity two, an upper positioning base is arranged at the upper end of the large pull rod, an upper positioning link is detachably arranged on the upper part of the upper positioning base, mute rollers one are arranged on the two sides of the upper positioning link, the mute rollers one roll in the mute slide, a lower positioning member is arranged at the bottom of the large pull rod, mute rollers two are arranged on the bottom of the lower positioning member, the mute rollers two roll on the bottom strip, a small pull rod is connected with the large pull rod on the right side through a magnetic strip one, and the other side of the small pull rod is connected with one end of the screen net.

[0012] As preferred, the upper part of the screen box upper cover is provided with a fixed pulley one, one end of the upper positioning chain arranged in the screen box is connected with a pull rope one, the pull rope one extends upwards, passes through the fixed pulley one, and then extends downwards, the bottom of the lower connecting member is provided with a lower part, and the lower part is provided with a fixed pulley two, the pull rope one passes through the fixed pulley two, extends leftwards, and is connected with the lower positioning member.

[0013] As preferred, the upper right part of the lower positioning member is provided with a fixed pulley three, one end of the lower bottom chain arranged in the large pull rod is connected with a pull rope two, the pull rope two extends downwards, passes through the fixed pulley three, and then extends upwards, the upper right part of the upper positioning link is provided with a fixed pulley four, the pull rope two passes through the fixed pulley four, extends rightwards, and is connected with the screen box upper cover.

[0014] Preferably, the left side clamping of the large pull rod is provided with a magnetic strip two, which is magnetically connected with the left side strip.

[0015] Compared with the prior art, the utility model has the beneficial effects that:

[0016] The upper positioning chain is arranged in the upper cross beam and the yarn box, and the lower bottom chain is arranged in the large pull rod, so that the separated arrangement effect is achieved, the weight and volume of the accommodating part are prevented from being increased due to the arrangement at one place, the controllability is affected, and the separated arrangement makes the components of the screen door more uniform and more beautiful. The upper end of the screen is in the upper cross beam, and the lower end is in the lower bottom chain, so that the upper and lower ends can be sealed, the sealing performance is improved, the anti-mosquito effect is better, and in addition, the upper positioning chain is clamped in the mute slide in the upper cross beam, so that the upper positioning chain cannot sag, and the system stability is stronger. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a whole structure schematic view of the utility model;

[0018] Figure 2 It is a whole structure explosion view of the utility model;

[0019] Figure 3 It is Figure 1 A partial sectional view of the middle A.

[0020] In the drawing: 1, left side strip; 2, yarn box; 3, bottom strip; 4, upper positioning chain; 5, lower bottom chain; 6, terminal piece; 7, upper cross beam; 8, cross beam terminal; 9, mute slide; 10, mute strip; 11, winding drum; 12, screen; 13, positioning piece; 14, upper connecting piece; 15, upper end cover; 16, bearing; 17, lower connecting piece; 18, lower end cover; 19, yarn box upper cover; 20, large pull rod; 21, upper positioning base; 22, upper positioning link; 23, mute roller one; 24, lower positioning base; 25, mute roller two; 26, magnetic strip one; 27, small pull rod; 28, fixed pulley one; 29, pull rope one; 30, fixed pulley two; 31, fixed pulley three; 32, pull rope two; 33, fixed pulley four; 34, magnetic strip two. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described in combination with the drawings in the embodiments of the utility model; obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments; based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0022] In the description of the utility model, it needs to explain, the term "upper", "lower", "inner", "outer", "top / bottom end" and so on indicate the orientation or position relation is based on the orientation or position relation shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and is not indicate or imply that the device or element must have a particular orientation, construct and operate in a particular orientation, therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0023] In the description of the utility model, it needs to explain, unless otherwise expressly provided and limited, the terms "mounting", "setting", "sleeving / connection", "connection" and so on should be understood broadly, for example, "connection", can be fixed connection, can also be detachable connection, or integrally connected, can be mechanical connection, can also be electrical connection, can be directly connected, can also be indirectly connected through intermediate medium, can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances. Embodiment

[0024] As Figures 1-3 Indicated in the present embodiment, a circulating system trackless detachable wash wind-resistant roll-up screen door, comprising, horizontally arranged upper frame assembly, the lower part of left end of the upper frame assembly is detachably provided with left edge strip 1, the lower part of right end of the upper frame assembly is detachably provided with screen box 2, screen window net assembly is rotatably arranged in the screen box 2, bottom strip 3 is arranged between the bottom of left edge strip 1 and the bottom of screen box 2, pull rod assembly is slidably arranged between the upper frame assembly and bottom strip 3, the side of pull rod assembly towards the inside is connected with one end of screen window net assembly, upper positioning chain 4 is slidably arranged in the upper frame assembly, one end of upper positioning chain 4 is connected with the upper end of pull rod assembly, the other end of upper positioning chain 4 extends downward from the right side of upper frame assembly into screen box 2, lower bottom chain 5 is slidably arranged in the pull rod assembly, one end of lower bottom chain 5 is provided with terminal piece 6, terminal piece 6 slides in the pull rod assembly, the other end of lower bottom chain 5 extends rightward from the bottom of pull rod assembly and is connected with the bottom of screen box 2.

[0025] In the present embodiment, the upper frame assembly comprises, upper cross beam 7, cavity one is arranged in the upper cross beam 7, cross beam terminal 8 is insertedly arranged on the left side of upper cross beam 7, the lower end of cross beam terminal 8 is inserted on the upper part of left edge strip 1, the top of cavity one is provided with mute slide 9, mute strip 10 is transversely arranged on the front and back sides and the top of mute slide 9, upper positioning chain 4 is clamped between the four mute strips 10 on the front and back sides and the top of mute slide 9.

[0026] In the embodiment, the screen window net assembly comprises a winding drum 11, the screen net 12 is wound outside the winding drum 11, and positioning members 13 are inserted into the upper and lower ends of the winding drum 11.

[0027] In the embodiment, the screen box 2 is provided with an upper connecting member 14 at the top, the upper connecting member 14 is detachably provided with an upper end cover 15 at the top, the upper end cover 15 is vertically provided with a rotating shaft I at the lower end, the rotating shaft I is inserted into the upper positioning member 13 through the upper connecting member 14, a bearing 16 is arranged between the rotating shaft I and the positioning member 13, the screen box 2 is provided with a lower connecting member 17 at the bottom, the lower connecting member 17 is detachably provided with a lower end cover 18 at the bottom, the upper end cover 15 is vertically provided with a rotating shaft II at the upper end, the rotating shaft II is inserted into the lower positioning member 13 through the lower connecting member 17, a bearing 16 is also arranged between the rotating shaft II and the positioning member 13, and the right end of the lower bottom chain 5 is connected with the lower connecting member 17.

[0028] In the embodiment, the upper end of the upper connecting member 14 is detachably provided with a screen box upper cover 19, and the screen box upper cover 19 is inserted into the left end of the upper cross beam 7.

[0029] In the embodiment, the pull rod assembly comprises a large pull rod 20, the large pull rod 20 is internally provided with a cavity II, one end of the lower bottom chain 5 is arranged in the cavity II, the upper end of the large pull rod 20 is provided with an upper positioning base 21, the upper positioning base 21 is detachably provided with an upper positioning link 22 at the upper portion, the upper positioning link 22 is provided with silent rollers I 23 at both sides, the silent rollers I 23 roll in the silent slide 9, the bottom of the large pull rod 20 is provided with a lower positioning base 24, the lower positioning base 24 is provided with silent rollers II 25 at the bottom, the silent rollers II 25 roll on the bottom strip 3, the right side of the large pull rod 20 is connected with a small pull rod 27 through a magnetic strip I 26, and the other side of the small pull rod 27 is connected with one end of the screen net 12.

[0030] In the embodiment, the upper portion of the screen box upper cover 19 is provided with a fixed pulley I 28, one end of the upper positioning chain 4 located in the screen box 2 is connected with a pull rope I 29, the pull rope I 29 extends upward, passes through the fixed pulley I 28, and then extends downward, the lower portion of the lower connecting member 17 is provided with a fixed pulley II 30, the pull rope I 29 passes through the fixed pulley II 30, then extends leftward, and is connected with the lower positioning base 24.

[0031] In the embodiment, the upper right portion of the lower positioning base 24 is provided with a fixed pulley III 31, one end of the lower bottom chain 5 located in the large pull rod 20 is connected with a pull rope II 32, the pull rope II 32 extends downward, passes through the fixed pulley III 31, and then extends upward, the upper right portion of the upper positioning link 22 is provided with a fixed pulley IV 33, the pull rope II 32 passes through the fixed pulley IV 33, then extends rightward, and is connected with the screen box upper cover 19.

[0032] In this embodiment, a magnetic strip 34 is snapped onto the left side of the large pull rod 20, and the magnetic strip 34 is magnetically connected to the left side strip 1.

[0033] The working principle and beneficial effects of the above technical solution are as follows:

[0034] When in use, fix the left strip 1 to the left side of the door frame, fix the upper crossbeam 7 to the upper part of the door frame, and fix the bottom strip 3 to the bottom of the door frame. When the screen door needs to be opened, pull the large pull rod 20 to the left. The upper positioning link 22 slides in the upper frame assembly, and the lower positioning seat 24 slides on the bottom strip 3. When the upper pull rod moves to the left, the upper positioning chain 4 moves into the upper crossbeam 7 and the lower bottom chain 5 moves onto the bottom strip 3. When the upper pull rod returns to its original position to the right, the upper positioning chain 4 moves into the screen box 2 and the lower bottom chain 5 moves into the large pull rod 20.

[0035] Compared to existing technologies, this invention features an upper positioning chain 4 positioned within the upper crossbeam 7 and the screen box 2, while the lower bottom chain 5 is positioned within the large pull rod 20. This separate arrangement avoids the problem of all components being placed in one location, which would increase the weight and volume of the housing and affect maneuverability. The separate arrangement also makes the screen door components more symmetrical and aesthetically pleasing. The upper end of the screen mesh 12 is within the upper crossbeam 7, and the lower end is within the lower bottom chain 5, allowing for sealing from both ends and improving sealing performance for better mosquito prevention. The upper positioning chain 4 is secured within the silent slide 9, between the front and rear sides and the four silent strips 10 at the top, preventing sagging and enhancing system stability.

[0036] The above are merely preferred embodiments of this utility model; however, the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and its improved concept, should be included within the scope of protection of this utility model.

Claims

1. A trackless, detachable, washable, wind-resistant rewind screen door with a circulating system, characterized in that, The device includes a horizontally arranged upper frame assembly, a left side strip (1) detachably disposed on the lower left side of the upper frame assembly, a gauze box (2) detachably disposed on the lower right side of the upper frame assembly, a screen mesh assembly rotatably disposed inside the screen box (2), a bottom strip (3) disposed between the bottom of the left side strip (1) and the bottom of the screen box (2), a pull rod assembly slidably disposed between the upper frame assembly and the bottom strip (3), the inward side of the pull rod assembly being connected to one end of the screen mesh assembly, an upper positioning chain (4) slidably disposed inside the upper frame assembly, one end of the upper positioning chain (4) being connected to the upper end of the pull rod assembly, the other end of the upper positioning chain (4) extending downward from the right side of the upper frame assembly into the screen box (2), a lower bottom chain (5) slidably disposed inside the pull rod assembly, one end of the lower bottom chain (5) being provided with a terminal piece (6), the terminal piece (6) sliding inside the pull rod assembly, and the other end of the lower bottom chain (5) extending to the right from the bottom of the pull rod assembly and connected to the bottom of the screen box (2).

2. The trackless, detachable, washable, wind-resistant rewind screen door with a circulating system according to claim 1, characterized in that, The upper frame assembly includes an upper crossbeam (7), a cavity is provided inside the upper crossbeam (7), a crossbeam terminal (8) is inserted into the left side of the upper crossbeam (7), the lower end of the crossbeam terminal (8) is inserted into the upper part of the left side strip (1), a silent slide (9) is provided at the top of the cavity, and silent strips (10) are provided laterally on the front and rear sides and the top of the silent slide, and an upper positioning chain (4) is locked between the silent strips (10) on the front and rear sides and the top of the silent slide (9).

3. The trackless, detachable, washable, wind-resistant rewind screen door with a circulating system according to claim 1, characterized in that, The screen assembly includes a roller (11), with a screen (12) wound around the outside of the roller (11), and positioning elements (13) inserted at the upper and lower ends of the roller (11).

4. The trackless, detachable, washable, wind-resistant rewind screen door with a circulating system according to claim 3, characterized in that, The top of the yarn box (2) is provided with an upper connector (14), and the top of the upper connector (14) is provided with a detachable upper cover (15). The lower end of the upper cover (15) is provided with a vertically arranged shaft one. The shaft one passes through the upper connector (14) and is inserted into the upper positioning part (13). A bearing (16) is provided between the shaft one and the positioning part (13). The bottom of the yarn box (2) is provided with a lower connector (17), and the bottom of the lower connector (17) is provided with a detachable lower cover (18). The upper end of the upper cover (15) is provided with a vertically arranged shaft two. The shaft two passes through the lower connector (17) and is inserted into the lower positioning part (13). A bearing (16) is also provided between the shaft two and the positioning part (13). The right end of the bottom chain (5) is connected to the lower connector (17).

5. A trackless, detachable, washable, wind-resistant rewind screen door with a circulating system according to claim 4, characterized in that, The upper end of the upper connector (14) is detachably provided with a gauze box cover (19), and the left side of the gauze box cover (19) is inserted into the left end of the upper crossbeam (7).

6. A trackless, detachable, washable, wind-resistant rewind screen door with a circulating system according to claim 5, characterized in that, The pull rod assembly includes a large pull rod (20), which has a cavity 2 inside. One end of the bottom chain (5) is located in the cavity 2. An upper positioning base (21) is inserted into the upper end of the large pull rod (20). An upper positioning link (22) is detachably provided on the upper part of the upper positioning base (21). Silent rollers (23) are provided on both sides of the upper positioning link (22). Silent rollers (23) roll in silent slides (9). A lower positioning seat (24) is inserted into the bottom of the large pull rod (20). Silent rollers (25) are provided at the bottom of the lower positioning seat (24). Silent rollers (25) roll on the bottom strip (3). A small pull rod (27) is connected to the right side of the large pull rod (20) through a magnetic strip (26). The other side of the small pull rod (27) is connected to one end of the mesh (12).

7. A trackless, detachable, washable, wind-resistant rewind screen door with a circulating system according to claim 6, characterized in that, The top cover (19) of the yarn box is provided with a fixed pulley 1 (28) at the top. The upper positioning chain (4) is connected to a pull rope 1 (29) at one end inside the yarn box (2). The pull rope 1 (29) extends upward and passes around the fixed pulley 1 (28) before extending downward. The bottom of the lower connector (17) is provided with a fixed pulley 2 (30) at the bottom. After the pull rope 1 (29) passes around the fixed pulley 2 (30), it extends to the left and connects with the lower positioning seat (24).

8. A trackless, detachable, washable, wind-resistant rewind screen door with a circulating system according to claim 7, characterized in that, The lower positioning seat (24) is provided with a fixed pulley three (31) on the upper right side. The bottom chain (5) is connected to a pull rope two (32) at one end inside the large pull rod (20). The pull rope two (32) extends downward and then extends upward after passing over the fixed pulley three (31). The upper positioning link (22) is provided with a fixed pulley four (33) on the upper right side. The pull rope two (32) extends to the right after passing over the fixed pulley four (33) and connects to the top cover (19) of the gauze box.

9. A trackless, detachable, washable, wind-resistant rewind screen door with a circulating system according to claim 8, characterized in that, The large pull rod (20) is fitted with a magnetic stripe 2 (34) on the left side, and the magnetic stripe 2 (34) is magnetically connected to the left strip (1).

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