Curtain and punching-free mounting device for upper beam of curtain

Abstract

The embodiment of the invention provides a curtain and an upper beam punching-free installation device thereof, and the device is used for fixing an upper beam of the curtain to the top of a window body. One end of the mounting seat is fixed at the end part of an upper beam; the axial direction of the screw rod is parallel to the length direction of the upper beam; the screw rod can be axially and movably assembled on the mounting seat; the abutting plate is assembled at the end, extending out of the upper beam, of the screw rod and used for abutting against and positioning a wall on one side of the window body, the adjusting mechanism is assembled on the mounting base and used for driving the screw rod to move axially, and a rotation stopping structure for stopping the screw rod from rotating circumferentially is arranged between the screw rod and the mounting base. The adjusting mechanism comprises a driving gear pivoted on the mounting seat, and a gear shaft of the driving gear is provided with a driving part which is used for driving the driving gear to rotate and is exposed outside the upper beam; the driven gear is pivoted on the mounting seat and is meshed with the driving gear, a screw hole is formed in the center of the driven gear, and the screw rod is also correspondingly screwed with the screw hole. The embodiment is simple in structure and convenient to use.

Description

Technical Field

[0001] This application relates to the field of curtain accessories technology, and in particular to a curtain and its top beam installation device that does not require drilling. Background Technology

[0002] No-drill curtain top installation devices are becoming increasingly popular due to their convenience in allowing for quick and easy installation and positioning of curtain tops without the need for drilling.

[0003] An existing curtain top beam installation device without drilling mainly includes: a mounting base with one end fixed to the end of the top beam and having an internal cavity; a linkage component with a worm gear portion and a lead screw portion at its two ends, with one end of the worm gear portion extending into the cavity of the mounting base; a worm gear assembled in the mounting base and meshing with the worm gear portion of the linkage component to drive the linkage component to rotate; an adjusting block with one end extending into the mounting base; a locking component screwed onto the lead screw portion of the linkage component to limit the axial movement of the adjusting block into the mounting base; and an elastic component with both ends abutting against the driving component and the adjusting block, respectively. The adjusting block is pushed outward by the elastic component and presses against the wall. One end of the worm gear protrudes from the mounting base to facilitate operation of the worm gear. When used to assemble the upper beam, one end of the mounting base of the device is fixed to the end of the upper beam. Then, the adjusting block is pushed inward to move it slightly inward so that the upper beam can be installed into the window frame. Under the action of the elastic element, the adjusting block is pressed against the mounting wall on both sides of the window frame to achieve pre-installation. Then, the worker drives the worm gear to drive the linkage to rotate, which causes the locking element to move axially towards the adjusting block and press against the adjusting block to prevent the adjusting block from elastically retracting. This achieves drilling-free installation and can also be compatible with window frames of different widths within a small range.

[0004] However, the inventors found during implementation that the above-mentioned no-drill installation device has a relatively complex structure, a relatively large number of parts, and is relatively troublesome to manufacture. In addition, the adjusting top block is extended and pressed against the wall by the squeezing action of the elastic element and then locked in position by the locking element. When disassembling, after adjusting the locking element to the unlocked position, it is relatively difficult to push the adjusting top block back by overcoming the elastic force of the elastic element. Invention Overview

[0006] Technical issues

[0007] The technical problem to be solved by the embodiments of this application is to provide a curtain top beam installation device that does not require drilling, which has a simple structure and is easy to operate.

[0008] The technical problem to be solved by the embodiments of this application is to provide a curtain with a simple and easy-to-operate installation structure.

[0009] Solution

[0010] To address the aforementioned technical problems, this application provides the following technical solution: a curtain top beam installation device without drilling, comprising:

[0011] A mounting base fixed at one end to the end of the upper beam;

[0012] A screw rod is arranged axially parallel to the length direction of the upper beam and can be axially movably assembled on the mounting base. An anti-rotation structure is provided between the screw rod and the mounting base to prevent the screw rod from rotating circumferentially.

[0013] A pressure plate assembled at the end of the screw away from the upper beam and used for abutting and positioning against the wall on one side of the window; and

[0014] An adjusting mechanism, assembled on the mounting base, for driving the screw to move axially, the adjusting mechanism comprising:

[0015] A drive gear pivotally mounted on the mounting base, the gear shaft of the drive gear having a drive portion exposed outside the upper beam for driving the drive gear to rotate; and

[0016] A driven gear is pivotally mounted on the mounting base and meshes with the driving gear. A threaded hole is provided at the center of the driven gear, and the screw is also screwed into the corresponding threaded hole.

[0017] Furthermore, the central axes of the driving gear and the driven gear intersect at a predetermined non-zero angle, and both the driving gear and the driven gear are bevel gears, or the driving gear is a helical gear and the driven gear is an end face gear that meshes with the helical gear.

[0018] Furthermore, the mounting base is a box with an internal cavity. One end of the box protrudes to form a plug-in portion for corresponding insertion and positioning with the end of the upper beam, while a through hole is provided in the middle of the opposite end wall. The adjustment mechanism is assembled in the cavity of the box. One end of the screw extends out of the box through the through hole. A through hole is also provided on one side of the box for the drive unit to be exposed.

[0019] Furthermore, the box body is composed of a box body that forms the receiving cavity inside and has an opening at one end, and a cover plate that is detachably assembled to the opening to cover the opening.

[0020] Furthermore, the perforation is located in the middle of the cover plate, and the inner side of the cover plate also has a pressing protrusion extending towards the inside of the box body around the perforation. A positioning ring is formed in the middle of the box wall on the side of the box body facing the cover plate. The driven gear is axially positioned by the pressing protrusion on the cover plate and the positioning ring respectively pressing against its opposite ends.

[0021] Furthermore, the inner hole of the positioning ring also penetrates the box wall of the box body.

[0022] Furthermore, the anti-rotation structure includes a positioning protrusion key disposed on the wall of the through hole and extending axially, and a positioning keyway disposed on the outer side of the screw and extending axially, wherein the positioning protrusion key is inserted into the positioning keyway.

[0023] Furthermore, a shaft seat is formed by protrusions on one side wall of the receiving cavity and the inner side of the cover plate, and a positioning half-groove is formed by recesses on the opposite sides of the two shaft seats. When the cover plate is fixed to the box body, the positioning half-grooves of the two shaft seats together form a pivot hole for the gear shaft to pivot. The through hole is opened on the side wall of the receiving cavity where the shaft seat is formed and is directly opposite the pivot hole. A positioning ring groove is formed by corresponding recesses on the outer side wall of the middle section of the gear shaft, and a positioning convex ring is formed by corresponding protrusions on the wall of the pivot hole. When the gear shaft is assembled to the pivot hole, the positioning ring groove and the positioning convex ring are engaged to position the gear shaft in the axial direction.

[0024] Furthermore, the pressure plate protrudes from the center of one side facing the screw to form a pivot seat, while an anti-slip pad is provided on the opposite side. Each of the two opposite sides of the pivot seat protrudes to form a pivot protrusion. Two pivot tabs protrude alternately from the end face of the screw extending from the upper beam. Each pivot tab also has a pivot recess. The screw is pivotally connected to the pivot seat by the two pivot tabs located on opposite sides of the pivot seat and by the corresponding engagement of the pivot recess and the pivot protrusion.

[0025] On the other hand, in order to solve the above-mentioned further technical problems, the embodiments of this application provide the following technical solutions: a curtain, including a top beam and a top beam no-drilling installation device assembled at at least one end of the top beam, wherein the top beam no-drilling installation device is a curtain top beam no-drilling installation device as described in any of the above claims.

[0026] Beneficial effects

[0027] After adopting the above technical solution, the embodiments of this application have at least the following beneficial effects: The embodiments of this application employ an adjustment mechanism formed by the meshing of a driving gear and a driven gear. The driven gear is then threadedly connected to a screw rod with a pressure plate at one end via a screw hole at its center. By operating the drive unit located at one end of the gear shaft of the driving gear and exposed outside the upper beam, the screw rod can be rotated and moved axially to extend outward relative to the end face of the upper beam. The pressure plate assembled at the end of the screw rod extending outward from the upper beam then presses tightly against the corresponding wall to fix the upper beam. When it is necessary to disassemble the upper beam, simply reverse the operation of the drive unit to retract the screw rod, causing the pressure plate to separate from the wall, thus allowing the upper beam to be removed. The upper beam installation device without drilling provided by this application has a simple overall structure and does not require elastic elements to provide pressure. In practical applications, the operation of disassembling and assembling the upper beam is very convenient. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of an optional embodiment of the curtain top beam no-drill installation device of this application, showing the disassembled structure of the top beam.

[0029] Figure 2 This is a schematic diagram of an optional embodiment of the curtain top beam no-drill installation device of this application and the assembly structure of the top beam.

[0030] Figure 3 This is a schematic cross-sectional view of an optional embodiment of the curtain top beam installation device of this application.

[0031] Figure 4 This is a schematic diagram of the main body of an optional embodiment of the curtain top beam no-drill installation device of this application.

[0032] Figure 5 This is a schematic diagram of the disassembled structure of another optional embodiment of the curtain top beam installation device of this application.

[0033] Figure 6 This is another optional embodiment of the curtain top beam installation device without drilling, and a cross-sectional structural diagram of the top beam.

[0034] Figure 7 This is a schematic diagram of the disassembled structure of the screw and pressure plate in an optional embodiment of the curtain top beam installation device of this application.

[0035] Figure 8 This is a cross-sectional structural schematic diagram of an optional embodiment of the curtain top beam installation device of this application.

[0036] Embodiments of the present invention

[0037] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments. It should be understood that the following illustrative embodiments and descriptions are only used to explain the present application and are not intended to limit the present application. Moreover, the embodiments and features in the embodiments of the present application can be combined with each other unless otherwise specified.

[0038] like Figures 1-8 As shown, an optional embodiment of this application provides a curtain top beam installation device A without drilling, comprising:

[0039] Mounting base 1, one end of which is fixed to the end of the upper beam B;

[0040] A screw 3 is axially parallel to the length direction of the upper beam B and can be axially movably assembled on the mounting base 1. A rotation-preventing structure 4 is provided between the screw 3 and the mounting base 1 to prevent the screw 3 from rotating circumferentially.

[0041] A pressure plate 5 is assembled at the end of the screw 3 away from the upper beam B and is used to abut and position itself against the wall on one side of the window; and

[0042] An adjusting mechanism 7, assembled on the mounting base 1, for driving the screw 3 to move axially, the adjusting mechanism 7 includes:

[0043] A drive gear 70 is pivotally mounted on the mounting base. The gear shaft 701 of the drive gear 70 is provided with a drive portion for driving the drive gear 70 to rotate and exposed outside the upper beam B; and

[0044] A driven gear 72 is pivotally mounted on the mounting base 1 and meshes with the driving gear 70. A screw hole 721 is provided at the center of the driven gear 72, and the screw 3 is screwed into the screw hole 721.

[0045] This embodiment employs an adjustment mechanism 7 formed by the meshing of a driving gear 70 and a driven gear 72. The driven gear 72 is threadedly connected to a screw rod 3 with a pressure plate 5 at one end via a screw hole 721 at its center. By operating the drive unit 701, located at one end of the gear shaft 701 of the driving gear 70 and exposed outside the upper beam B, the screw rod 3 can be rotated and moved axially to extend outward relative to the end face of the upper beam B. The pressure plate 5, assembled at the end of the screw rod extending outward from the upper beam B, then presses against the corresponding wall to fix the upper beam B. When it is necessary to remove the upper beam B, simply reverse the operation of the drive unit 701 to retract the screw rod 3, causing the pressure plate 5 to separate from the wall, thus removing the upper beam B. The upper beam no-drill installation device provided by this application has a simple overall structure and does not require elastic elements to provide pressure. In practical applications, the operation of assembling and disassembling the upper beam B is very convenient.

[0046] In specific implementations, to facilitate the rotation of the drive gear 70, the drive unit 703 can be implemented in many ways, such as: an operating hole, an operating handle, etc. Figures 1-5 In the embodiment shown, the drive unit 703 is an internal hexagonal hole for inserting a hex wrench.

[0047] In an optional embodiment of this application, the central axes of the driving gear 70 and the driven gear 72 intersect at a predetermined non-zero angle, and both the driving gear 70 and the driven gear 72 are bevel gears (e.g., Figures 1 to 4 Alternatively, the driving gear 70 may be a helical gear and the driven gear 72 may be a face gear that meshes with the helical gear (e.g., Figures 5 to 8 In this embodiment, the meshing of two bevel gears or the meshing of a helical gear and an end face gear can effectively achieve the transmission engagement of two gears whose central axes intersect at a predetermined non-zero angle, while also occupying less space. Specifically, it is preferable that the central axes of the two driving gears 70 and the driven gear 72 intersect at 90 degrees.

[0048] In one optional embodiment of this application, such as Figures 1 to 8 The mounting base 1 is a box with an internal cavity 10. One end of the box protrudes to form a connector 12 for corresponding insertion and positioning with the end of the upper beam B, while the other end has a through hole 13 in the middle. The adjustment mechanism 7 is assembled inside the cavity 10 of the box 1. One end of the screw 3 extends out of the box 1 through the through hole 13. A through hole 14 is also provided on one side of the box 1 for the drive part 701 to be exposed. In this embodiment, the mounting base 1 uses a box with an internal cavity 10, which can effectively protect the mating parts of the adjustment mechanism 7 and the screw 3 located inside, and prevent foreign objects from falling into the mating parts between the relatively movable components and affecting the smoothness of transmission.

[0049] In one optional embodiment of this application, such as Figures 1 to 6 The box body 1 is composed of a main body 15 that forms the receiving cavity 10 internally and has an opening 151 at one end, and a cover plate 16 that is detachably assembled to the opening 151 to cover the opening 151. In this embodiment, the box body 1 is formed by combining the main body 15 and the cover plate 16, which facilitates the insertion of the adjustment mechanism 7 into the receiving cavity 10 through the opening 151, and the cover plate 16 covers the opening 151 to improve the protective performance.

[0050] In one optional embodiment of this application, such as Figures 1 to 6The perforation 13 is located in the middle of the cover plate 16. The inner side of the cover plate 16 also has a pressing protrusion 161 extending towards the inside of the box body 1 around the perforation 13. A positioning ring 153 is formed in the middle of the side wall of the box body 15 facing the cover plate 16. The driven gear 72 is axially positioned by the pressing protrusion 161 on the cover plate and the positioning ring 153 corresponding to each other at opposite ends. In this embodiment, the pressing protrusion 161 of the cover plate 16 and the positioning ring 153 formed in the middle of the box wall of the box body 15 effectively position the driven gear 72 by pressing against its opposite ends. The structure is simple and easy to assemble. In a specific implementation, the end of the driven gear 72 facing the positioning ring 153 can further protrude to form an inner positioning ring, which is inserted into the positioning ring 153 to achieve better coaxial positioning.

[0051] In one optional embodiment of this application, such as Figures 1 to 6 The inner hole 153a of the positioning ring 153 also penetrates the box wall of the box body 15. In this embodiment, the inner hole of the positioning ring 153 also penetrates the box wall of the box body 15, so that the end of the screw 3 away from the pressure plate 5 can extend into the upper beam B through the inner hole 153a of the positioning ring 153, and the internal space of the upper beam B can accommodate the screw 3. It can be understood that since the axial travel of the screw 3 is not too large, the space for movement of the screw 3 can also be provided by reasonably designing the distance between the driven gear 72 and the corresponding side box wall of the box body 15, and utilizing the distance between the driven gear 72 and the box wall.

[0052] In one optional embodiment of this application, such as Figures 1 to 6 The anti-rotation structure 4 includes a positioning protrusion 40 disposed on the wall of the through hole 13 and extending axially, and a positioning keyway 42 disposed on the outer side of the screw 3 and extending axially. The positioning protrusion 40 is inserted into the positioning keyway 42. In this embodiment, the positioning protrusion 40 on the wall of the through hole 13 and the positioning keyway 42 on the outer side of the screw 3 are interlocked, which can effectively limit the screw 3 in the circumferential direction, and the structure is simple.

[0053] In one optional embodiment of this application, such as Figures 1 to 6A bearing seat 101 is formed by protruding on one side wall of the receiving cavity 10 and the inner side of the cover plate 16. The opposite sides of the two bearing seats 101 are recessed to form positioning half grooves 103. When the cover plate 16 is fixed on the box body 15, the positioning half grooves 103 of the two bearing seats 101 surround to form a pivot hole 105 for the gear shaft 701 to pivot. The through hole 14 is opened on the side wall of the receiving cavity 10 where the bearing seat 101 is formed and is directly opposite to the pivot hole 105. The outer side wall of the middle section of the gear shaft 701 is correspondingly recessed to form a positioning ring groove 701a. A positioning convex ring 105a is correspondingly protruded on the wall of the pivot hole 105. When the gear shaft 701 is assembled to the pivot hole 105, the positioning ring groove 701a and the positioning convex ring 105a are correspondingly engaged to position the gear shaft 701 in the axial direction. In this embodiment, a bearing seat 101 is formed by protruding from one side wall of the accommodating cavity 10 and the inner side of the cover plate 16. During assembly, one side of the gear shaft 701 of the drive gear 70 can be installed on the positioning half groove 103 of the bearing seat 101 on the inner wall of the accommodating cavity 10. Then, the cover plate 16 is fastened so that the positioning half groove 103 of the bearing seat 101 of the cover plate 16 positions the other side of the gear shaft 701, thus completing the installation of the drive gear 70. The assembly is very convenient, and the drive gear 70 can be positioned using the cover plate 16. Moreover, by using the positioning ring groove 701a of the gear shaft 701 and the positioning convex ring 105a of the pivot hole 105 to engage with each other, the gear shaft 701 can be positioned axially, preventing the gear shaft 701 from moving axially and achieving stable positioning.

[0054] In one optional embodiment of this application, such as Figure 7 and Figure 8 As shown, the pressure plate 5 protrudes from the center of one side facing the screw 3 to form a pivot seat 50, while an anti-slip pad 52 is provided on the opposite side. The two opposite sides of the pivot seat 50 each protrude to form a pivot protrusion 501. Two pivot tabs 30 protrude alternately from the end face of the screw 3 extending from the upper beam B. Each pivot tab 501 is also provided with a pivot recess 301. The screw 3 is pivotally connected to the pivot seat 50 by the two pivot tabs 30 respectively located on opposite sides of the pivot seat 50 and by the corresponding engagement of the pivot recess 301 and the pivot protrusion 501. In this embodiment, the pivot recess 301 on the pivot protrusion 30 of the screw 3 and the pivot protrusion 501 on the pivot protrusion 501 of the pressure plate 5 are pivotally connected to each other, so that the screw 3 and the pressure plate 5 are pivotally connected. Thus, during the actual installation, the pressure plate 5 can be slightly rotated so that the pressure surface of the pressure plate 5 can be parallel to the wall surface, achieving stable pressure positioning. In addition, by setting the anti-slip pad 52, it can effectively prevent the pressure plate 5 from sliding relative to the wall it is pressed against, achieving stable pressing positioning.

[0055] In specific implementation, the pivoting protrusion 501 can be a hemispherical protrusion, and the pivoting recess 301 can be a round hole or a pit, or the pivoting protrusion 501 can be a convex shaft and the pivoting recess 301 can be a round hole.

[0056] On the other hand, this application provides a curtain, including a top beam B and a no-drill installation device A for the top beam B assembled at at least one end of the top beam B. The no-drill installation device A is a curtain top beam no-drill installation device as described in any of the above embodiments. In this embodiment, the curtain uses the aforementioned no-drill installation device A for the top beam, making the installation structure simpler.

[0057] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims. All of these forms are within the scope of protection of this application.

Claims

1. A no-drill installation device for a curtain top beam, comprising a mounting base fixed at one end to the end of the top beam, characterized in that, The device further includes: A screw rod is arranged axially parallel to the length direction of the upper beam and can be axially movably assembled on the mounting base. An anti-rotation structure is provided between the screw rod and the mounting base to prevent the screw rod from rotating circumferentially. A pressure plate assembled at the end of the screw away from the upper beam and used for abutting and positioning against the wall on one side of the window; and An adjusting mechanism, assembled on the mounting base, for driving the screw to move axially, the adjusting mechanism comprising: A drive gear pivotally mounted on the mounting base, the gear shaft of the drive gear having a drive portion exposed outside the upper beam for driving the drive gear to rotate; and A driven gear is pivotally mounted on the mounting base and meshes with the driving gear. A threaded hole is provided at the center of the driven gear, and the screw is also screwed into the corresponding threaded hole.

2. The curtain top beam installation device without drilling as described in claim 1, characterized in that, The central axes of the driving gear and the driven gear intersect at a predetermined non-zero angle. Both the driving gear and the driven gear are bevel gears, or the driving gear is a helical gear and the driven gear is an end face gear that meshes with the helical gear.

3. The curtain top beam installation device without drilling as described in claim 1 or 2, characterized in that, The mounting base is a box with an internal cavity. One end of the box protrudes to form a plug-in part for corresponding insertion and positioning with the end of the upper beam, while the other end has a through hole in the middle. The adjustment mechanism is assembled in the cavity of the box. One end of the screw extends out of the box through the through hole. A through hole is also provided on one side of the box for the drive part to be exposed.

4. The curtain top beam installation device without drilling as described in claim 3, characterized in that, The box body is composed of a box body that forms the receiving cavity inside and has an opening at one end, and a cover plate that is detachably assembled to the opening to cover the opening.

5. The curtain top beam installation device without drilling as described in claim 4, characterized in that, The perforation is located in the middle of the cover plate. The inner side of the cover plate also has a pressing protrusion extending towards the inside of the box body around the perforation. A positioning ring is formed in the middle of the box wall on the side of the box body facing the cover plate. The driven gear is axially positioned by the pressing protrusion on the cover plate and the positioning ring at opposite ends.

6. The curtain top beam installation device without drilling as described in claim 5, characterized in that, The inner hole of the positioning ring also penetrates the box wall of the box body.

7. The curtain top beam installation device without drilling as described in claim 3, characterized in that, The anti-rotation structure includes a positioning protrusion key disposed on the wall of the through hole and extending axially, and a positioning keyway disposed on the outer side of the screw and extending axially, wherein the positioning protrusion key is inserted into the positioning keyway.

8. The curtain top beam installation device without drilling as described in claim 4, characterized in that, One side wall of the receiving cavity and the inner side of the cover plate are respectively raised to form a bearing seat. The opposite sides of the two bearing seats are respectively recessed to form a positioning half groove. When the cover plate is fixed to the box body, the positioning half grooves of the two bearing seats surround to form a pivot hole for the gear shaft to pivot. The through hole is opened on the side wall of the receiving cavity where the bearing seat is formed and is directly opposite the pivot hole. The outer side wall of the middle section of the gear shaft is correspondingly recessed to form a positioning ring groove. A positioning convex ring is correspondingly protruded on the wall of the pivot hole. When the gear shaft is assembled to the pivot hole, the positioning ring groove and the positioning convex ring are correspondingly engaged to position the gear shaft in the axial direction.

9. The curtain top beam installation device without drilling as described in claim 1, characterized in that, The pressure plate protrudes from the center of one side facing the screw to form a pivot seat, while an anti-slip pad is provided on the opposite side. Each of the two opposite sides of the pivot seat protrudes to form a pivot protrusion. Two pivot protrusions protrude alternately from the end face of the screw extending from the upper beam. Each pivot protrusion also has a pivot recess. The screw is pivotally connected to the pivot seat by the two pivot protrusions located on opposite sides of the pivot seat and by the corresponding engagement of the pivot recess and the pivot protrusion.

10. A curtain, comprising a top beam and a drill-free mounting device for the top beam assembled to at least one end of the top beam, characterized in that, The above-mentioned no-drill installation device for the upper beam is the curtain upper beam no-drill installation device as described in any one of claims 1-9.

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