CN111946241A

CN111946241A - Sunshade curtain and flexible thin object clamping mechanism applying same

Info

Publication number: CN111946241A
Application number: CN202010843368.XA
Authority: CN
Inventors: 涂予新; 王�华; 曾一川; 夏玉宝
Original assignee: Hohai University HHU
Current assignee: Hohai University HHU
Priority date: 2020-08-20
Filing date: 2020-08-20
Publication date: 2020-11-17

Abstract

The invention discloses a sun-shading curtain and a flexible thin object clamping mechanism applied by the same, wherein the sun-shading curtain comprises an outer cover and sun-shading cloth, end covers are arranged at two ends of the outer cover, the top end of the sun-shading cloth is connected with a scroll and is arranged in the outer cover together, a straining beam is arranged at the bottom end of the sun-shading cloth, straining beam end sockets are arranged at two ends of the straining beam, the straining beam end sockets are arranged in a channel and can slide up and down along the channel, and the top end of the channel is connected with the end covers; one side of the outer cover is provided with a pre-force adjusting device assembly, and an end cover operation hole for adjusting the pre-force is arranged on the side end cover corresponding to the pre-force adjusting device assembly, so that the pre-force of the sunshade curtain can be directly adjusted from the outside, the outer cover is prevented from being disassembled, the working efficiency is improved, and the sunshade curtain is suitable for large-scale production and manual fine adjustment operation; the flexible thin object clamping mechanism adopts the design of combining a single-side dovetail groove with a positioning convex line, and effectively clamps and fixedly connects the flexible thin object to other components.

Description

Sunshade curtain and flexible thin object clamping mechanism applying same

Technical Field

The invention relates to a sunshade curtain and a flexible thin object clamping mechanism applied to the sunshade curtain, and belongs to the technical field of sunshade curtains.

Background

At present, most automatic sun-shading curtains on the market are not provided with a pre-stressing adjusting device, and if the pre-stressing is required to be adjusted in the using process, an outer cover and an end cover need to be detached, so that the detaching process is complex, and the convenience of products is greatly reduced.

Meanwhile, the fabric of the sun-shading curtain is connected with the handle in various modes. One way is to wrap the flexible thin object on the round tube and mount the object in the mounting hole of the roller shutter. The structure is relatively complex in operation and poor in clamping and connecting reliability. The other method is to heat seal the flexible thin object of the automatic rolling screen on the PVC holding strip by a heat sealing device. Although the reliability of the clamping and the connection is high, the equipment investment is high, so that the manufacturing cost is increased.

The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.

Disclosure of Invention

The invention aims to overcome the defects in the prior art, provides a sunshade curtain, can be directly operated from the outside to adjust prestress without disassembly, and discloses a flexible thin object clamping mechanism applied to the sunshade curtain, which can effectively clamp and fix flexible thin objects such as fabrics, films and the like.

In order to achieve the purpose, the invention is realized by adopting the following technical scheme:

a sun-shading curtain comprises an outer cover and sun-shading cloth, wherein end covers are arranged at two ends of the outer cover, the top end of the sun-shading cloth is connected with a reel and is arranged in the outer cover together, a straining beam is arranged at the bottom end of the sun-shading cloth, straining beam end sockets are arranged at two ends of the straining beam, the straining beam end sockets are arranged in a channel and can slide up and down along the channel, and the top end of the channel is connected with the end covers; a pre-force adjusting device assembly is installed on one side of the outer cover and comprises a worm wheel and a worm which are meshed together, a worm wheel and worm accommodating groove is formed in an end cover on the side, the worm wheel is integrally connected with a worm wheel shaft on the inner side of the end cover, the other end of the worm wheel shaft is connected with a pre-force spring, a bearing is assembled on the scroll, a bearing sleeve is sleeved outside the bearing, one end, away from the worm wheel shaft, of the pre-force spring is fixedly connected with a pressing sleeve, the pressing sleeve is fixed inside the bearing sleeve, a blind hole is formed in one end, connected with the pre-force spring, of the worm wheel shaft to install a balancing rod, the balancing rod penetrates through the interior of the pre-force spring, and the other end of; one end of the worm is provided with a worm operation hole for adjusting the pre-stress, and an end cover operation hole for adjusting the pre-stress is arranged at the position of the end cover corresponding to the worm operation hole. During operation, a tool with a corresponding shape and size can be held by hands or clamped by an electric drill, the tool is inserted into the worm operating hole through the end cover operating hole, and the pre-stress can be adjusted by rotating forwards or reversely.

As a further aspect of the present invention, the worm operation hole may be provided as a hexagon socket, the end cap operation hole is provided concentrically with the worm operation hole, and an inner diameter of the end cap operation hole is not smaller than an inner diameter of the worm operation hole. When in operation, a hexagonal rod or a hexagonal wrench matched with the hexagonal rod or the hexagonal wrench can be used as an adjusting tool.

As a further scheme of the invention, a worm wheel cover plate is arranged on one side of the worm wheel and the worm, which is far away from the end cover, and the worm wheel cover plate is fixed on the end cover to limit the worm wheel and the worm.

As a further scheme of the invention, the combined channel cover is installed at the bottom end of the channel and is formed by inserting and combining the channel inserting sheet and the channel sealing cover, the channel inserting sheet is fixed below the channel, the inserting and combining are easy to install, and a screw at the joint of the channel inserting sheet and a window can be covered, so that the visual attractiveness is ensured.

As a further scheme of the invention, the wind-proof brushes are arranged in the channel and are arranged on two sides of the sunshade cloth, and the wool tops of the wind-proof brushes are in contact with the sunshade cloth to generate frictional resistance with the sunshade cloth, so that the sunshade cloth is prevented from being blown out of the channel when wind power is too high.

As a further scheme of the invention, when the sunshade curtain is used on a window, the end covers can be fixed on the upper brim of the window frame through screws, and the channels are fixed on two sides of the window frame through straight inner locks.

The invention also comprises a flexible thin object clamping mechanism, which comprises a bottom plate and a cover plate on two sides of the flexible thin object, wherein a single-side dovetail groove is arranged on the inner side of the bottom plate, one bottom angle of the single-side dovetail groove is a dovetail inner acute angle, the other bottom angle of the single-side dovetail groove is a right angle, and a convex line for positioning is arranged on the side edge of the right angle; the inner side of the cover plate is provided with a single-side dovetail-shaped bulge, a right-angle bulge and a groove line which are matched with the dovetail-shaped inner acute angle, the right angle and the bulge line of the bottom plate. The matching position of the bottom plate and the cover plate can be provided with a proper gap, and the size of the gap is determined according to the thickness of the clamped flexible object. The mechanism can be applied to the pull beam in the sun-shading curtain and can also be applied to other roller shutters.

As a further scheme of the invention, the outer corner chamfer of the right-angle side of the right-angle bulge of the cover plate is a fillet, so that the flexible object is prevented from being scratched when the cover plate is contacted with the clamped flexible object.

As a further proposal of the invention, when the clamping mechanism is applied to the straining beam, the outer side of the bottom plate can be connected with the pulling groove to be used as a handle of the straining beam, and can also be designed into a whole with other external components according to the use condition.

When the clamped flexible object of the roller shutter needs to be clamped, one side of the clamped flexible object is placed in the single-side dovetail groove of the bottom plate, and the cover plate is pressed up to enable the matching surfaces of the cover plate and the bottom plate to be matched.

Compared with the prior art, the invention has the following beneficial effects:

the worm gear mechanism is applied to the pre-stressing adjustment of the sun-shading curtain, so that the direct operation from the outside is realized, the outer cover is prevented from being detached, and the working efficiency is improved. The operation can be used not only in fine adjustment, but also in assembly, and meanwhile, force is not applied in assembly, and the force is directly applied by an electric tool after installation, so that the operation is suitable for large-scale production, and a large amount of labor force can be saved. During fine adjustment, a manual tool can be directly adopted without an electric drill, so that convenience and rapidness are improved in the adjustment process.

The flexible thin object clamping mechanism adopts the design of combining the unilateral dovetail groove with the positioning convex line, can effectively clamp and fixedly connect flexible thin objects such as fabrics, films and the like on other components, has reasonable structure, simple and convenient operation and reliable clamping and connection, and can be used for the straining beam of the sun-shading curtain or other roller shutter devices.

Drawings

FIG. 1 is a schematic disassembled view of the components of an embodiment of the shade of the present invention.

Fig. 2 is an enlarged view of a in fig. 1.

FIG. 3 is an exploded view of the pre-load adjustment assembly in an embodiment of the shade according to the present invention.

FIG. 4 is a schematic structural diagram of an embodiment of a flexible thin object clamping mechanism according to the present invention.

In the figure: 1-outer cover, 2-sun-shading cloth, 3-scroll, 4-straining beam, 41-bottom plate, 42-cover plate, 43-single-side dovetail groove, 44-raised line, 45-single-side dovetail-shaped projection, 46-right-angle projection, 47-groove line, 48-right-angle outer corner, 49-pulling groove, 5-straining beam end socket, 6-channel, 7-channel insert, 8-channel cover, 9-prestress adjusting device assembly, 91-end cover, 911-worm gear mounting groove, 912-end cover operating hole, 92-worm gear, 921-worm gear shaft, 922-blind hole, 93-worm, 931 worm operating hole, 94-worm-wheel cover plate, 95-bearing, 96-balancing rod, 97-bearing sleeve and 98-pressing sleeve, 99-pre-stressed spring, 910-axle clamp; 10-windproof hairbrush, 11-wool top, 12-straight internal lock and 13-cross-shaped groove countersunk self-tapping screw.

Detailed Description

The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "top", "bottom", "inner", "outer", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

Example 1

The sunshade curtain shown in figures 1-3 comprises an outer cover 1 and a sunshade cloth 2, wherein end covers 91 are arranged at two ends of the outer cover 1, the top end of the sunshade cloth 2 is connected with a scroll 3 and is arranged in the outer cover 1, a draw beam 4 is arranged at the bottom end of the sunshade cloth 2, two ends of the draw beam 4 are provided with draw beam end sockets 5, the draw beam end sockets 5 are arranged in a channel 6 and can slide up and down along the channel 6, the end covers 91 of the outer cover 1 are fixed on the upper edge of a window frame through cross-slot countersunk self-tapping screws 13, the channel 6 is fixed on two sides of the window frame through straight inner locks 12, the straight inner locks 12 are fixed on two sides of the window frame through cross-slot countersunk self-tapping screws 13, a pre-force adjusting device assembly 9 is arranged on one side of the outer cover 1, the pre-force adjusting device assembly 9 comprises a worm gear 92 and a worm 93 which are meshed together, the worm gear 92 is integrally connected with a worm gear shaft 921 on the inner side of the end cover 91, the other end of the worm gear shaft 921 is connected with a pre-stressing spring 99, the reel 3 is provided with a bearing 95, a bearing sleeve 97 is sleeved outside the bearing 95, one end of the pre-stressing spring 99, which is far away from the worm gear shaft 921, is fixedly connected with a pressing sleeve 98, the pressing sleeve 98 is fixed inside the bearing sleeve 97, one end of the worm gear shaft 921, which is connected with the pre-stressing spring 99, is provided with a blind hole 922 for mounting a balancing rod 96, the balancing rod 96 penetrates through the interior of the pre-stressing spring 99, and the other end of the balancing rod 96 is connected with; one end of the worm 93 is provided with a worm operation hole 931 for adjusting the pre-force, and a position of the end cover 91 corresponding to the worm operation hole 931 is provided with an end cover operation hole 912 for adjusting the pre-force.

In this embodiment, the worm operation hole 931 is an inner hexagonal hole, the end cap operation hole 912 is concentrically arranged with the worm operation hole 931, and the inner diameter of the end cap operation hole 912 is not smaller than the inner diameter of the worm operation hole 931. During operation, a hexagonal rod with a corresponding size can be held by hands or clamped by an electric drill, the hexagonal rod is inserted into the worm operating hole 931 through the end cover operating hole 912, and the pre-stress can be adjusted by rotating forwards or reversely. The operation can be used not only in fine adjustment, but also in assembly, and meanwhile, force is not applied in assembly, and the force is directly applied by an electric tool after installation, so that the operation is suitable for large-scale production, and a large amount of labor force can be saved. During fine adjustment, the electric drill is not needed, and the manual inner hexagonal wrench is adopted, so that the convenience degree is improved in the adjustment process.

In this embodiment, a worm wheel cover plate 94 is arranged on one side of the worm wheel 92 and the worm 93, which is far away from the end cover 91, and the worm wheel cover plate 94 is fixed on the end cover 91 to limit the worm wheel 92 and the worm 93.

This embodiment 6 bottom installation combination slot covers of channel is formed by channel inserted sheet 7 and the combination of pegging graft of channel closing cap 8, and channel inserted sheet 7 is fixed in 6 below of channel through cross recess countersunk head self-tapping screw 13, and this grafting combination both easily installs, can cover the screw of channel inserted sheet 7 and window junction again, guarantees that the vision is pleasing to the eye.

In this embodiment, the wind-proof brushes 10 are arranged in the channel 6 and are arranged on two sides of the sunshade cloth, and the wool tops 11 of the wind-proof brushes 10 are in contact with the sunshade cloth 2 to generate frictional resistance with the sunshade cloth 2, so that the sunshade cloth 2 is prevented from being blown out of the channel 6 when wind power is too large.

Example 2

According to a flexible thin object clamping mechanism shown in fig. 4, the flexible thin object is the sunshade cloth 2 applied to the sunshade curtain described in embodiment 1, the mechanism includes a bottom plate 41 and a cover plate 42 at two sides of the sunshade cloth 2, a single-side dovetail groove 43 is arranged at the inner side of the bottom plate 41, one bottom angle of the single-side dovetail groove 43 is a dovetail inner acute angle, the other bottom angle is a right angle, and a convex line 44 for positioning is arranged on the side edge of the right angle; the inner side of the cover plate 42 is provided with a single-side dovetail-shaped protrusion 45, a right-angle protrusion 46 and a groove line 47 which are matched with the dovetail-shaped inner acute angle, the right angle and the protrusion line 44 of the bottom plate 41.

In the embodiment, the outer corner 48 of the right-angle edge of the right-angle protrusion 46 of the cover plate 42 is chamfered into a round angle, so that the sun-shading cloth is prevented from being scratched.

In this embodiment, a pulling groove 49 is connected to the outer side of the bottom plate 41 to serve as a handle of the pull beam 4.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. A sun-shading curtain comprises an outer cover (1) and sun-shading cloth (2), wherein end covers (91) are arranged at two ends of the outer cover (1), the top end of the sun-shading cloth (2) is connected with a reel (3) and is arranged in the outer cover (1) in a lump, a straining beam (4) is arranged at the bottom end of the sun-shading cloth (2), straining beam end sockets (5) are arranged at two ends of the straining beam (4), the straining beam end sockets (5) are arranged in a channel (6) and can slide up and down along the channel (6), and the top end of the channel (6) is connected with the end covers (91); the device is characterized in that a pre-force adjusting device assembly (9) is installed on one side of the outer cover (1), the pre-force adjusting device assembly (9) comprises a worm wheel (92) and a worm (93) which are meshed together, a worm wheel and worm placing groove (912) is formed in an end cover (91) on the side, the worm wheel (92) is integrally connected with a worm wheel shaft (921) on the inner side of the end cover (91), the other end of the worm wheel shaft (921) is connected with a pre-force spring (99), a bearing (95) is assembled on the scroll (3), a bearing sleeve (97) is sleeved outside the bearing (95), one end, far away from the worm wheel shaft (921), of the pre-force spring (99) is fixedly connected with a pressing sleeve (98), the pressing sleeve (98) is fixed inside the bearing sleeve (97), a blind hole (922) is formed in one end, connected with the pre-force spring (99), of the worm wheel shaft (, the balance rod (96) penetrates through the interior of the pre-stressed spring (99), and the other end of the balance rod (96) is connected to the reel (3) through a shaft clamp (910); one end of the worm (93) is provided with a worm operation hole (931) for adjusting the pre-stress, and an end cover operation hole (912) for adjusting the pre-stress is arranged at the position, corresponding to the worm operation hole (931), of the end cover (91).

2. The sun blind according to claim 1, wherein the worm operation hole (931) is a hexagon socket, the head cover operation hole (912) is provided concentrically with the worm operation hole (931), and an inner diameter of the head cover operation hole (912) is not smaller than an inner diameter of the worm operation hole (931).

3. The sun shade according to claim 1, characterized in that a worm wheel cover plate (94) is arranged on one side of the worm wheel (92) and the worm (93) far away from the end cover (91), and the worm wheel cover plate (94) is fixed on the end cover (91) to limit the worm wheel (92) and the worm (93).

4. The sunshade of claim 1, wherein a combined slot cover is installed at the bottom end of the slot (6) and is formed by inserting and combining a slot insert (7) and a slot cover (8), and the slot insert (7) is fixed below the slot (6).

5. A sun blind according to claim 1, characterized in that wind-proof brushes (10) are provided in said channels (6) on both sides of the sun screen (2), and the top wool (11) of the wind-proof brushes (10) is in contact with the sun screen (2).

6. A sun blind according to claim 1, characterised in that the end caps (91) are fixed to the upper edge of the frame and the channels (6) are fixed to the sides of the frame by means of straight inner locks (12).

7. A flexible thin object clamping mechanism is applied to a pull beam in a sun blind according to any one of claims 1 to 6, and is characterized in that the mechanism comprises a bottom plate (41) and a cover plate (42) at two sides of the flexible thin object, a single-side dovetail groove (43) is arranged at the inner side of the bottom plate (41), one bottom angle of the single-side dovetail groove (43) is a dovetail-shaped internal acute angle, the other bottom angle is a right angle, and a convex line (44) for positioning is arranged on the side edge of the right angle; the inner side of the cover plate (42) is provided with a single-side dovetail-shaped protrusion (45), a right-angle protrusion (46) and a groove line (47) which are matched with the dovetail-shaped inner acute angle, the right angle and the protrusion line (44) of the bottom plate (41).

8. The flexible thin object clamping mechanism as claimed in claim 7, wherein the outer corners (48) of the right-angled edges of the right-angled protrusions (46) of the cover plate (42) are chamfered to a rounded angle.

9. The flexible thin object clamping mechanism as claimed in claim 7, wherein a pulling groove (49) is connected to the outside of the bottom plate (41) as a handle of the pulling beam (4).