Curtain and non-punching installation device for curtain upper beam

Abstract

The embodiment provides a curtain and a non-punching installation device for a curtain upper beam. The device includes a mounting base, an abutting base assembled on the mounting base for linear reciprocating sliding, and an adjustment mechanism assembled on the mounting base. The adjustment mechanism includes a double-headed screw with two opposite ends being respectively provided with a first external thread and a second external thread with opposite spiral directions, two nuts movable synchronously towards or away from each other in the axial direction under the driving of the double-headed screw, and two push rods symmetrically arranged with respect to a symmetrical plane that extends through a midpoint of a distance between the two nuts and is perpendicular to the axial direction of the double-headed screw. Corresponding ends of the two push rods as linkage ends are connected to the two nuts for one-to-one corresponding transmission, and move synchronously under the driving of the two nuts. Opposite ends of the two push rods as driving ends are assembled on the abutting base and are relatively fixed with the abutting base in a sliding direction of the abutting base. The embodiment has a simple structure and is easy to operate.

Description

FIELD OF THE PRESENT INVENTION

[0001] The present invention relates to curtain technology and, more particularly to a curtain and a non-punching installation device for a curtain upper beam.BACKGROUND OF THE PRESENT INVENTION

[0002] Non-punching installation devices for curtain top beams have gradually become popular due to their convenience in quickly installing and positioning the curtain top beams without the need for punching.

[0003] A current non-punching installation device for a curtain top beam mainly includes an installation base with one end fixed to an end of the top beam and defining an internal space, a linkage member with two ends respectively forming a worm gear part which extends into the internal space of the installation base and a screw rod part, a worm assembled in the installation base and meshing with the worm gear part of the linkage member to drive the rotation of the linkage member, an adjusting block with one end extending into the installation base, a locking member screwed on the screw rod part of the linkage member to limit the axial movement of the adjusting block towards the interior of the installation base, and an elastic member with two ends respectively abutting against the driving member and the adjusting block. The adjusting block is pushed outward by the elastic member to be abutted against a wall. One end of the worm is exposed from the installation base for easy operation of the worm. When specifically used for assembling the top beam, the end of the installation base of the device is fixed to the end of the top beam, and then the adjusting block is pushed inward to slightly move inward to install the top beam into a window frame. The adjusting block is abutted against the wall on a corresponding one of both sides of the window frame under the action of the elastic member to achieve pre installation. The worm is then manually driven to drive the linkage member to rotate, so that the locking member moves axially toward the adjusting block and presses against the adjusting block to prevent the elastic retraction of the adjusting block, thereby achieving non-punching installation and being compatible with window frames of different widths in a small range.

[0004] However, in the specific implementation, the above-mentioned non-punching installation device has a relatively complex structure, a relatively large number of components, and relatively complicated production and manufacturing.SUMMARY OF THE INVENTIONTechnical Problem

[0005] Therefore, the technical problem to be solved by the embodiments of the present invention is to provide a non-punching installation device for a curtain top beam, which has a simple structure and is easy to operate.

[0006] Another technical problem to be solved by the embodiments of the present invention is to provide a curtain, which has a simple installation structure and is easy to operate.Solutions to the Problem

[0007] To solve the above-mentioned technical problems, an embodiment of the present invention provides the following solutions. A non-punching installation device for a curtain upper beam includes a mounting base with one end fixed to an end of the upper beam, an abutting base assembled on the mounting base for linear reciprocating sliding to be abutted against a wall on one side of a window, and an adjustment mechanism assembled on the mounting base for driving the abutting base to linearly reciprocating slide relative to the end of the upper beam. The adjustment mechanism includes a double-headed screw, two nuts, and two push rods.

[0008] The double-headed screw is assembled on the mounting base and fixed relative to the mounting base in an axial direction; two opposite ends of the double-headed screw are respectively provided with a first external thread and a second external thread with opposite spiral directions, and at least one end is exposed from the mounting base as an operation end.

[0009] The two nuts are respectively threaded with the first external thread and the second external thread at the both ends of the double-headed screw, and movable synchronously towards or away from each other in the axial direction under the driving of the double-headed screw; and

[0010] The two push rods are symmetrically arranged with respect to a symmetrical plane that extends through a midpoint of a distance between the two nuts and is perpendicular to the axial direction of the double-headed screw; corresponding ends of the two push rods as linkage ends are connected to the two nuts for one-to-one corresponding transmission, and move synchronously under the driving of the two nuts; opposite ends of the two push rods as driving ends are assembled on the abutting base and are relatively fixed with the abutting base in a sliding direction of the abutting base; wherein when the linkage ends move synchronously with the nuts, the driving ends drive the abutting base to slide accordingly.

[0011] Furthermore, the adjustment mechanism further includes two support rods.

[0012] The two support rods are symmetrically arranged relative to the symmetry plane, one end of each support rod functions as a rotation end rotatably connected to the mounting base through a first pivot, the other ends of the two support rods function as support ends rotatably connected to the corresponding nuts through second pivots; central axes of the first pivot and the second pivots are all perpendicular to the axial direction of the double-headed screw.

[0013] Furthermore, the linkage ends of the two push rods are rotatably connected to the two nuts through third pivots in a one-to-one correspondence.

[0014] Furthermore, the driving ends of the two push rods are rotatably connected to the abutting base through fourth pivots, the third pivots and the fourth pivots are parallel, and are perpendicular to the axial direction of the double-headed screw, or, the abutting base defines two guide slots extending parallel to the axial direction of the double-headed screw, and the driving ends of the two push rods are both provided with rollers, which are correspondingly arranged in the guide slots.

[0015] Furthermore, the adjustment mechanism further includes a telescopic component.

[0016] The telescopic component is hinged in an X-shape by two connecting rods through a hinge shaft, corresponding ends of the two connecting rods are respectively rotatably connected to the two nuts through the third pivots, while opposite ends are respectively rotatably connected to the linkage ends of the two push rods through fifth pivots; the hinge shaft, the third pivots, and the fifth pivots are parallel, and are perpendicular to the axial direction of the double-headed screw.

[0017] Furthermore, two parallel sets of said telescopic components are provided, the two opposite ends of each connecting rod define pivot holes, and the third pivots coaxially extend from opposite sides of each nut and are respectively rotatably engaged in the pivot holes in the corresponding ends of two connecting rods of the telescopic components belonging to different sets; wherein each push rod is in the shape of an I-shape and comprises two parallel horizontal parts and a connecting part connected between middles of the two horizontal parts, one end of each horizontal part is provided with a pivot portion, each fifth pivot correspondingly extends through the pivot holes defined in the corresponding ends of the corresponding connecting rods of the two telescopic components belonging to different sets, and both ends of the fifth pivot are rotatably engaged in the pivot portions of the two horizontal portions of a corresponding push rod.

[0018] Furthermore, adjacent sides of the rotation ends of the two support rods are respectively provided with first teeth that maintain mutual meshing when the two support rods rotate about the first pivots.

[0019] Furthermore, adjacent sides of the driving ends of the two push rods are respectively provided with second teeth that maintain mutual meshing when the two push rods rotate about the fourth pivots.

[0020] Furthermore, the abutting base includes a main base, a telescopic block, and an elastic member.

[0021] One end of the main base is connected to the driving ends of the push rods, the main base defines two guide holes that extend through the main base in the sliding direction of the abutting base.

[0022] The telescopic block is set on a side of the main base facing away from the mounting base, wherein two guide poles extend from a side of the telescopic block facing the main base, to be inserted into the corresponding guide holes, an anti-slip gasket extends from a side of the telescopic block opposite to the main base, and an anti-detachment structure is set between the telescopic block and the main base, to prevent the telescopic block from detaching from the main base.

[0023] The elastic member is set between the main base and the telescopic block, with opposite ends being respectively abutted against the main base and the telescopic block.

[0024] On the other hand, to solve the above-mentioned technical problems, an embodiment of the present invention provides the following solutions. A curtain includes an upper beam, and a non-punching installation device mounted to at least one end of the upper beam. The non-punching installation device is any one of the above-mentioned embodiments of the non-punching installation device.Beneficial Effects of the Invention

[0025] By adopting the above technical solution, embodiments of the present invention have at least the following beneficial effects. The present embodiment of the application designs the first and second external threads on the opposite ends of the double-headed screw to have opposite spiral directions, so as that when the double-headed screw is rotated through the operation end, the two nuts respectively threaded on the first and second external threads will synchronously move towards or away from each other, which will drive the two push rods to move synchronously with the linkage ends of the corresponding transmission connection between the two nuts. Since the driving ends of the two push rods are assembled on the abutting base, when the two nuts move towards or away from each other synchronously, the linkage ends of the two push rods will move synchronously with the nuts, thereby causing the driving ends of the two push rods to drive the abutting base to slide correspondingly, and realizing linear reciprocating sliding of the abutting base relative to the mounting base. For example, rotating the double-headed screw in a predetermined rotation direction (such as clockwise) can cause the abutting base to slide away from the mounting base and to be tightly abutted against the corresponding wall to fix the upper beam. When rotating the double-headed screw in the opposite direction, the abutting base will slide towards the mounting base and loosen from the wall, making it easier to remove the upper beam.BRIEF DESCRIPTION OF THE DRAWINGS

[0026] FIG. 1 is an exploded, isometric view of an embodiment of a non-punching installation device for a curtain upper beam and the upper beam.

[0027] FIG. 2 is an exploded, isometric view of the non-punching installation device, showing an adjustment mechanism being assembled in an installation base.

[0028] FIG. 3 is an assembled, isometric view of the non-punching installation device and the upper beam.

[0029] FIG. 4 is an exploded, isometric view of the adjustment mechanism.

[0030] FIG. 5 is a cross-sectional view of the non-punching installation device, taken along a length axis plane.

[0031] FIG. 6 is a cross-sectional view of the non-punching installation device, taken along a length axis plane of a double-headed screw.

[0032] FIG. 7 is a vertical principle schematic view of an embodiment of the non-punching installation device.

[0033] FIG. 8 is a vertical principle schematic view of another embodiment of the non-punching installation device.

[0034] FIG. 9 is a vertical principle schematic view of still another embodiment of the non-punching installation device.

[0035] FIG. 10 is a vertical principle schematic view of yet still another embodiment of the non-punching installation device.

[0036] FIG. 11 is an exploded, isometric view of an abutting base of the non-punching installation device.

[0037] FIG. 12 is a cross-sectional view of an assembled portion of the installation base and the abutting base.DETAILED DESCRIPTION OF THE PRESENT INVENTION

[0038] The present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the following illustrative embodiments and illustrations are only used to explain the present invention and are not intended to limit the present invention, and that the embodiments of the present invention and the features of the embodiments can be combined with each other without conflict.

[0039] Referring to FIGS. 1-10, an embodiment of the present invention provides a non-punching installation device A for an upper beam, including a mounting base 1 with one end fixed to an end of the upper beam B, an abutting base 3 assembled on the mounting base 1 for linear reciprocating sliding to be abutted against a wall on one side of a window, and an adjustment mechanism 5 assembled on the mounting base 1 for driving the abutting base 3 to linearly reciprocating slide relative to the end of the upper beam B. The adjustment mechanism 5 includes a double-headed screw 50, two nuts 52, and two push rods 54.

[0040] The double-headed screw 50 is assembled on the mounting base 1 and fixed relative to the mounting base 1 in an axial direction. Two opposite ends of the double-headed screw 50 are respectively provided with a first external thread 501 and a second external thread 503 with opposite spiral directions, and at least one end is exposed from the mounting base 1 as an operation end 50a.

[0041] The nuts 52 are respectively threaded with the first external thread 501 and the second external thread 503 at the both ends of the double-headed screw 50, and move synchronously towards or away from each other in the axial direction under the driving of the double-headed screw 50.

[0042] The push rods 54 are symmetrically arranged with respect to a symmetrical plane M that extends through a midpoint of a distance between the two nuts 52 and is perpendicular to the axial direction of the double-headed screw 50. Corresponding ends of the two push rods 54 as linkage ends 54a are connected to the two nuts 52 for one-to-one corresponding transmission, and move synchronously under the driving of the two nuts 52. Opposite ends of the two push rods 54 as driving ends 54b are assembled on the abutting base 3 and are relatively fixed with the abutting base 3 in a sliding direction of the abutting base 3. When the linkage ends move synchronously with the nuts 52, the driving ends 54b drive the abutting base 3 to slide accordingly.

[0043] The present embodiment of the application designs the first external thread 501 and the second external thread 503 at the opposite ends of the double-headed screw 50 to have opposite spiral directions. Therefore, when the double-headed screw 50 is rotated in different directions through the operation end 50a, the two nuts 52 respectively screwed to the first external thread 501 and the second external thread 502 will synchronously move towards or away from each other, and will drive the linkage ends 54a of the two push rods 54 respectively connected to the nuts 54 to move synchronously. Since the driving ends 54b of the two push rods 54 are assembled on the abutting base 3, when the two nuts 52 move towards or away from each other synchronously, the linkage ends 54a of the two push rods 54 will move synchronously with the nuts 52, which causes the driving ends 54b of the two push rods 54 to drive the abutting base 3 to slide accordingly, and realizes linear reciprocating sliding of the abutting base 3 relative to the mounting base 1. For example, turning the double-headed screw 50 in a predetermined rotation direction (such as clockwise) can cause the abutting base 3 to slide away from the mounting base 1 and be tightly abutted against the corresponding wall to fix the upper beam B. When turning the double-headed screw in the opposite direction, the abutting base will slide towards the mounting base and loosen from the wall, making it easy to remove the upper beam B.

[0044] In specific implementation, in order to facilitate the exposure of the operation end 50a of the double-headed screw 50, through holes 10 can be correspondingly defined in the mounting base 1 and the upper beam B, for the exposure of the operation end 50a. At the same time, the both ends of the double-headed screw 50 each can serve as the operation end 50a. In addition, an end face of the operation end 50a can define a driving hole with a non-circular cross-section, or the end of the operation end 50a can have a driving shaft head with a non-circular cross-section, which is convenient for users to operate. Additionally, as shown in FIGS. 1-2, the mounting base 1 is formed by interlocking upper and lower shells, which facilitates production and structural assembly.

[0045] In an embodiment of the present application, as shown in FIGS. 4-5 and 7-8, the adjustment mechanism 5 further includes two support rods 56.

[0046] The support rods 56 are symmetrically arranged relative to the symmetry plane M. One end of each support rod 56 serves as a rotation end 56a, which is rotatably connected to the mounting base 1 through a first pivot 561. The other ends of the two support rods 56 serve as support ends 56b, which are rotatably connected to the corresponding nuts 52 through second pivots 563, respectively. Central axes of the first pivots 561 and the second pivots 563 are all perpendicular to the axial direction of the double-headed screw 50. In the embodiment, the two support rods 56 are provided, so that the mounting base 1 is connected to the two nuts 52 through the two support rods56, and the double-headed screw 50 is assembled to the mounting base 1. An adjustable stroke of the overall adjustment mechanism 5 is longer, and the structural stability is better.

[0047] In an embodiment of the present application, the linkage ends 54a of the two push rods 54 are rotatably connected to the two nuts 52 through third pivots 541 in a one-to-one correspondence. In the embodiment, the linkage ends 54a of the two push rods 54 are rotatably connected to the two nuts 52 through the third pivots 541, making the assembly structure relatively simpler and easy to install. In specific implementation, as shown in FIG. 7, the third pivots 541 and the corresponding second pivots 563 can be set separately, or, as shown in FIGS. 4 and 8, the third pivots 541 and the corresponding second pivots 563 share the same pivots.

[0048] In an embodiment of the present application, as shown in FIG. 9, the driving ends 54b of the two push rods 54 are rotatably connected to the abutting base 3 through fourth pivots 543. The third pivots 541 and the fourths pivot 543 are parallel, and are perpendicular to the axial direction of the double-headed screw 50, or, as shown in FIG. 10, the abutting base 3 defines two guide slots 3a extending parallel to the axial direction of the double-headed screw 50, and the driving ends 54b of the two push rods 54 are both provided with rollers 3b, which are correspondingly arranged in the guide slots 3a. In the embodiments, two different implementation methods are provided to achieve the linear movement of the abutting base3 relative to the mounting base 1 driven by the driving ends 54b of the two push rods 54, which are that the driving ends 54b of the two push rods 54 can be rotatably connected to the abutting base 3 through the fourth pivots 543, or can be installed with the rollers being assembled in the guide slots 3a to roll, both of which can achieve the driving of the pushing rods 54 to the abutting base 3. In specific implementation, the connection method between the push rods 54 and the abutting base 3 can be flexibly selected according to the installation difficulty and design cost.

[0049] In an embodiment of the present application, as shown in FIGS. 4 and 5, the adjustment mechanism 5 further includes a telescopic component 58.

[0050] The telescopic component 58 is hinged in an X-shape by two connecting rods 581 through a hinge shaft 583. Corresponding ends of the two connecting rods 581 are respectively rotatably connected to the two nuts 52 through the third pivots 541, while opposite ends are respectively rotatably connected to the linkage ends 54a of the two push rods 54 through fifth pivots 545. The hinge shaft 583, the third pivots 541, and the fifth pivots 545 are parallel, and are all perpendicular to the axial direction of the double-headed screw 50. In the embodiment, the telescopic component 58 is also provided, which is formed by the two connecting rods 581 hinged in an X-shape with the help of the hinge shaft 583, thereby using the telescopic component 58 to increase the adjustable stroke of the adjustment mechanism 5.

[0051] In an embodiment of the present application, as shown in FIGS. 4 and 5, two sets of parallel telescopic components 58 are provided. The two opposite ends of each connecting rod 581 define pivot holes 581a, and the third pivots 541 coaxially extend from opposite sides of each nut 52 and are respectively rotatably engaged in the pivot holes 581a in the corresponding ends of two connecting rods 581 of the telescopic components 58 belonging to different sets. Each push rod 54 is in the shape of an I-shape and includes two parallel horizontal parts 547 and a connecting part 549 connected between middles of the two horizontal parts 547. One end of each horizontal part 547 is provided with a pivot portion 547a. Each fifth pivot 545 correspondingly extends through the pivot holes 581a defined in the corresponding ends of the corresponding connecting rods 581 of the two telescopic components 58 belonging to different sets, with both ends being rotatably engaged in the pivot portions 547a of the two horizontal portions 547 of a corresponding push rod 54. In the embodiment, the two sets of parallel telescopic components 58 are set, and the two connecting rods 581 of each set of telescopic component 58 correspond to the horizontal parts of the two push rods 54, resulting in stronger overall structural stability. At the same time, the push rod 54 adopts an I-shaped design, which is also more lightweight.

[0052] It can be understood that in order to facilitate the rotation installation of the ends of the fifth pivots 545, the pivot portions 547a can use pivot holes, or pivot slots. In the embodiment shown in FIG. 4, a laterally open pivot slot is used. In addition, in some embodiments, the support rods 56 and the push rods 54 can adopt the same structural design, so as to correspondingly cooperate with the first pivots 561 and the second pivots 563 to rotatably connect the mounting base 1 and the nuts 52, respectively, and thereby facilitating the production and assembly of related components and reducing costs.

[0053] In an embodiment of the present application, as shown in FIGS. 4 and 5, adjacent sides of the rotation ends 56a of the two support rods 56 are respectively provided with first teeth 56c that maintain mutual meshing when the two support rods 56 rotate about the first pivots 561. In the embodiment, the rotation ends 56a of the two support rods 56 are also meshed with each other through the first teeth 56c, thereby ensuring the synchronization of the rotation of the two support rods 56 and making the structure more stable.

[0054] In an embodiment of the present application, as shown in FIGS. 4 and 5, adjacent sides of the driving ends 54b of the two push rods 54 are respectively provided with second teeth 54c that maintain mutual meshing when the two push rods 54 rotate about the fourth pivots 543. In the embodiment, the synchronization of the rotation of the two push rods 54 is ensured and the structure is more stable by meshing the driving ends 54b of the two push rods 54 with each other through the second teeth 54c.

[0055] In an embodiment of the present application, as shown in FIG. 5, and 11-12, the abutting base 3 includes a main base 30, a telescopic block 32, and an elastic member 34.

[0056] One end of the main base 30 is connected to the driving ends of the push rods 54, and the main base 30 also defines two guide holes 301 that extend through the main base 30 in the sliding direction of the abutting base 3.

[0057] The telescopic block 32 is set on a side of the main base 30 facing away from the mounting base 1. Two guide poles 321 extend from a side of the telescopic block 32 facing the main base 30, to be inserted into the corresponding guide holes 301, and an anti-slip gasket 323 extends from a side of the telescopic block 32 opposite to the main base 30. An anti-detachment structure 33 is set between the telescopic block 32 and the main base 30, to prevent the telescopic block 32 from detaching from the main base 30.

[0058] The elastic member 34 is set between the main base 30 and the telescopic block 32, with opposite ends being respectively abutted against the main base 30 and the telescopic block 32.

[0059] In the embodiment, the abutting base 3 includes the main base 30, the telescopic block 32, and the elastic member 34. The telescopic block 32 is abutted against the wall through the anti-slip gasket 323, which can effectively prevent relative sliding between the compression plate 32 and the abutted wall, and the elastic member 34 can promote the compression plate 32 being elastically abutted against the wall, both of which can improve the stability of the positioning of the telescopic block 32 against the wall. At the same time, the elastic member 34 can also assist in pushing the telescopic block 32 when installing the upper beam B, so that the telescopic block 32 can move and be easily assembled. The anti-detachment structure 33 is adopted to prevent the compression plate 32 from detaching. Moreover, by utilizing the mutual insertion and coordination between the guide poles 321 and the guide holes 301, the movement of the telescopic block 32 relative to the main base 30 can be effectively guided, improving the smoothness of the movement of the telescopic block 32. In specific implementation, the elastic member 34 can be implemented using coil springs, or compression springs. In the embodiment, two coil springs are used that are fitted about the guide poles 321, and multiple corresponding ones can be set to enhance the elastic thrust force. In addition, to prevent the telescopic block 32 from detaching from the main base 30, there are many embodiments of the anti-detachment structure 33. For example, as shown in FIGS. 11 and 12, anti-detachment slots 330 and anti-detachment elastic hooks 332 are interlocked to achieve anti-detachment, or anti-detachment pins are plugged into anti-detachment slots, or anti-detachment blocks are respectively set on the telescopic block 32 and the main base 30 for mutual contact and cooperation.

[0060] On the other hand, as shown in FIGS. 1-3, the present embodiment provides a curtain including an upper beam B and a non-punching installation device for the upper beam assembled on at least one end of the upper beam B. The non-punching installation device A is the non-punching installation device as described in any one of the above. In the embodiment, the curtain adopts the aforementioned non-punching installation device A, which has a simpler installation structure.

[0061] The embodiments of the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to the specific implementations described above, and the specific implementations described above are only schematic and not limiting. Under the enlightenment of this invention, many forms can be made without departing from the scope of this invention and the scope of protection of the claims, and these are all included in the scope of protection of this invention.

Examples

Embodiment Construction

[0038]The present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the following illustrative embodiments and illustrations are only used to explain the present invention and are not intended to limit the present invention, and that the embodiments of the present invention and the features of the embodiments can be combined with each other without conflict.

[0039]Referring to FIGS. 1-10, an embodiment of the present invention provides a non-punching installation device A for an upper beam, including a mounting base 1 with one end fixed to an end of the upper beam B, an abutting base 3 assembled on the mounting base 1 for linear reciprocating sliding to be abutted against a wall on one side of a window, and an adjustment mechanism 5 assembled on the mounting base 1 for driving the abutting base 3 to linearly reciprocating slide relative to the end of the upper beam B. The adjustment mechanis...

FIELD OF THE PRESENT INVENTION

[0001] The present invention relates to curtain technology and, more particularly to a curtain and a non-punching installation device for a curtain upper beam.BACKGROUND OF THE PRESENT INVENTION

[0002] Non-punching installation devices for curtain top beams have gradually become popular due to their convenience in quickly installing and positioning the curtain top beams without the need for punching.

[0003] A current non-punching installation device for a curtain top beam mainly includes an installation base with one end fixed to an end of the top beam and defining an internal space, a linkage member with two ends respectively forming a worm gear part which extends into the internal space of the installation base and a screw rod part, a worm assembled in the installation base and meshing with the worm gear part of the linkage member to drive the rotation of the linkage member, an adjusting block with one end extending into the installation base, a locking member screwed on the screw rod part of the linkage member to limit the axial movement of the adjusting block towards the interior of the installation base, and an elastic member with two ends respectively abutting against the driving member and the adjusting block. The adjusting block is pushed outward by the elastic member to be abutted against a wall. One end of the worm is exposed from the installation base for easy operation of the worm. When specifically used for assembling the top beam, the end of the installation base of the device is fixed to the end of the top beam, and then the adjusting block is pushed inward to slightly move inward to install the top beam into a window frame. The adjusting block is abutted against the wall on a corresponding one of both sides of the window frame under the action of the elastic member to achieve pre installation. The worm is then manually driven to drive the linkage member to rotate, so that the locking member moves axially toward the adjusting block and presses against the adjusting block to prevent the elastic retraction of the adjusting block, thereby achieving non-punching installation and being compatible with window frames of different widths in a small range.

[0004] However, in the specific implementation, the above-mentioned non-punching installation device has a relatively complex structure, a relatively large number of components, and relatively complicated production and manufacturing.SUMMARY OF THE INVENTIONTechnical Problem

[0005] Therefore, the technical problem to be solved by the embodiments of the present invention is to provide a non-punching installation device for a curtain top beam, which has a simple structure and is easy to operate.

[0006] Another technical problem to be solved by the embodiments of the present invention is to provide a curtain, which has a simple installation structure and is easy to operate.Solutions to the Problem

[0007] To solve the above-mentioned technical problems, an embodiment of the present invention provides the following solutions. A non-punching installation device for a curtain upper beam includes a mounting base with one end fixed to an end of the upper beam, an abutting base assembled on the mounting base for linear reciprocating sliding to be abutted against a wall on one side of a window, and an adjustment mechanism assembled on the mounting base for driving the abutting base to linearly reciprocating slide relative to the end of the upper beam. The adjustment mechanism includes a double-headed screw, two nuts, and two push rods.

[0008] The double-headed screw is assembled on the mounting base and fixed relative to the mounting base in an axial direction; two opposite ends of the double-headed screw are respectively provided with a first external thread and a second external thread with opposite spiral directions, and at least one end is exposed from the mounting base as an operation end.

[0009] The two nuts are respectively threaded with the first external thread and the second external thread at the both ends of the double-headed screw, and movable synchronously towards or away from each other in the axial direction under the driving of the double-headed screw; and

[0010] The two push rods are symmetrically arranged with respect to a symmetrical plane that extends through a midpoint of a distance between the two nuts and is perpendicular to the axial direction of the double-headed screw; corresponding ends of the two push rods as linkage ends are connected to the two nuts for one-to-one corresponding transmission, and move synchronously under the driving of the two nuts; opposite ends of the two push rods as driving ends are assembled on the abutting base and are relatively fixed with the abutting base in a sliding direction of the abutting base; wherein when the linkage ends move synchronously with the nuts, the driving ends drive the abutting base to slide accordingly.

[0011] Furthermore, the adjustment mechanism further includes two support rods.

[0012] The two support rods are symmetrically arranged relative to the symmetry plane, one end of each support rod functions as a rotation end rotatably connected to the mounting base through a first pivot, the other ends of the two support rods function as support ends rotatably connected to the corresponding nuts through second pivots; central axes of the first pivot and the second pivots are all perpendicular to the axial direction of the double-headed screw.

[0013] Furthermore, the linkage ends of the two push rods are rotatably connected to the two nuts through third pivots in a one-to-one correspondence.

[0014] Furthermore, the driving ends of the two push rods are rotatably connected to the abutting base through fourth pivots, the third pivots and the fourth pivots are parallel, and are perpendicular to the axial direction of the double-headed screw, or, the abutting base defines two guide slots extending parallel to the axial direction of the double-headed screw, and the driving ends of the two push rods are both provided with rollers, which are correspondingly arranged in the guide slots.

[0015] Furthermore, the adjustment mechanism further includes a telescopic component.

[0016] The telescopic component is hinged in an X-shape by two connecting rods through a hinge shaft, corresponding ends of the two connecting rods are respectively rotatably connected to the two nuts through the third pivots, while opposite ends are respectively rotatably connected to the linkage ends of the two push rods through fifth pivots; the hinge shaft, the third pivots, and the fifth pivots are parallel, and are perpendicular to the axial direction of the double-headed screw.

[0017] Furthermore, two parallel sets of said telescopic components are provided, the two opposite ends of each connecting rod define pivot holes, and the third pivots coaxially extend from opposite sides of each nut and are respectively rotatably engaged in the pivot holes in the corresponding ends of two connecting rods of the telescopic components belonging to different sets; wherein each push rod is in the shape of an I-shape and comprises two parallel horizontal parts and a connecting part connected between middles of the two horizontal parts, one end of each horizontal part is provided with a pivot portion, each fifth pivot correspondingly extends through the pivot holes defined in the corresponding ends of the corresponding connecting rods of the two telescopic components belonging to different sets, and both ends of the fifth pivot are rotatably engaged in the pivot portions of the two horizontal portions of a corresponding push rod.

[0018] Furthermore, adjacent sides of the rotation ends of the two support rods are respectively provided with first teeth that maintain mutual meshing when the two support rods rotate about the first pivots.

[0019] Furthermore, adjacent sides of the driving ends of the two push rods are respectively provided with second teeth that maintain mutual meshing when the two push rods rotate about the fourth pivots.

[0020] Furthermore, the abutting base includes a main base, a telescopic block, and an elastic member.

[0021] One end of the main base is connected to the driving ends of the push rods, the main base defines two guide holes that extend through the main base in the sliding direction of the abutting base.

[0022] The telescopic block is set on a side of the main base facing away from the mounting base, wherein two guide poles extend from a side of the telescopic block facing the main base, to be inserted into the corresponding guide holes, an anti-slip gasket extends from a side of the telescopic block opposite to the main base, and an anti-detachment structure is set between the telescopic block and the main base, to prevent the telescopic block from detaching from the main base.

[0023] The elastic member is set between the main base and the telescopic block, with opposite ends being respectively abutted against the main base and the telescopic block.

[0024] On the other hand, to solve the above-mentioned technical problems, an embodiment of the present invention provides the following solutions. A curtain includes an upper beam, and a non-punching installation device mounted to at least one end of the upper beam. The non-punching installation device is any one of the above-mentioned embodiments of the non-punching installation device.Beneficial Effects of the Invention

[0025] By adopting the above technical solution, embodiments of the present invention have at least the following beneficial effects. The present embodiment of the application designs the first and second external threads on the opposite ends of the double-headed screw to have opposite spiral directions, so as that when the double-headed screw is rotated through the operation end, the two nuts respectively threaded on the first and second external threads will synchronously move towards or away from each other, which will drive the two push rods to move synchronously with the linkage ends of the corresponding transmission connection between the two nuts. Since the driving ends of the two push rods are assembled on the abutting base, when the two nuts move towards or away from each other synchronously, the linkage ends of the two push rods will move synchronously with the nuts, thereby causing the driving ends of the two push rods to drive the abutting base to slide correspondingly, and realizing linear reciprocating sliding of the abutting base relative to the mounting base. For example, rotating the double-headed screw in a predetermined rotation direction (such as clockwise) can cause the abutting base to slide away from the mounting base and to be tightly abutted against the corresponding wall to fix the upper beam. When rotating the double-headed screw in the opposite direction, the abutting base will slide towards the mounting base and loosen from the wall, making it easier to remove the upper beam.BRIEF DESCRIPTION OF THE DRAWINGS

[0026] FIG. 1 is an exploded, isometric view of an embodiment of a non-punching installation device for a curtain upper beam and the upper beam.

[0027] FIG. 2 is an exploded, isometric view of the non-punching installation device, showing an adjustment mechanism being assembled in an installation base.

[0028] FIG. 3 is an assembled, isometric view of the non-punching installation device and the upper beam.

[0029] FIG. 4 is an exploded, isometric view of the adjustment mechanism.

[0030] FIG. 5 is a cross-sectional view of the non-punching installation device, taken along a length axis plane.

[0031] FIG. 6 is a cross-sectional view of the non-punching installation device, taken along a length axis plane of a double-headed screw.

[0032] FIG. 7 is a vertical principle schematic view of an embodiment of the non-punching installation device.

[0033] FIG. 8 is a vertical principle schematic view of another embodiment of the non-punching installation device.

[0034] FIG. 9 is a vertical principle schematic view of still another embodiment of the non-punching installation device.

[0035] FIG. 10 is a vertical principle schematic view of yet still another embodiment of the non-punching installation device.

[0036] FIG. 11 is an exploded, isometric view of an abutting base of the non-punching installation device.

[0037] FIG. 12 is a cross-sectional view of an assembled portion of the installation base and the abutting base.DETAILED DESCRIPTION OF THE PRESENT INVENTION

[0038] The present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the following illustrative embodiments and illustrations are only used to explain the present invention and are not intended to limit the present invention, and that the embodiments of the present invention and the features of the embodiments can be combined with each other without conflict.

[0039] Referring to FIGS. 1-10, an embodiment of the present invention provides a non-punching installation device A for an upper beam, including a mounting base 1 with one end fixed to an end of the upper beam B, an abutting base 3 assembled on the mounting base 1 for linear reciprocating sliding to be abutted against a wall on one side of a window, and an adjustment mechanism 5 assembled on the mounting base 1 for driving the abutting base 3 to linearly reciprocating slide relative to the end of the upper beam B. The adjustment mechanism 5 includes a double-headed screw 50, two nuts 52, and two push rods 54.

[0040] The double-headed screw 50 is assembled on the mounting base 1 and fixed relative to the mounting base 1 in an axial direction. Two opposite ends of the double-headed screw 50 are respectively provided with a first external thread 501 and a second external thread 503 with opposite spiral directions, and at least one end is exposed from the mounting base 1 as an operation end 50a.

[0041] The nuts 52 are respectively threaded with the first external thread 501 and the second external thread 503 at the both ends of the double-headed screw 50, and move synchronously towards or away from each other in the axial direction under the driving of the double-headed screw 50.

[0042] The push rods 54 are symmetrically arranged with respect to a symmetrical plane M that extends through a midpoint of a distance between the two nuts 52 and is perpendicular to the axial direction of the double-headed screw 50. Corresponding ends of the two push rods 54 as linkage ends 54a are connected to the two nuts 52 for one-to-one corresponding transmission, and move synchronously under the driving of the two nuts 52. Opposite ends of the two push rods 54 as driving ends 54b are assembled on the abutting base 3 and are relatively fixed with the abutting base 3 in a sliding direction of the abutting base 3. When the linkage ends move synchronously with the nuts 52, the driving ends 54b drive the abutting base 3 to slide accordingly.

[0043] The present embodiment of the application designs the first external thread 501 and the second external thread 503 at the opposite ends of the double-headed screw 50 to have opposite spiral directions. Therefore, when the double-headed screw 50 is rotated in different directions through the operation end 50a, the two nuts 52 respectively screwed to the first external thread 501 and the second external thread 502 will synchronously move towards or away from each other, and will drive the linkage ends 54a of the two push rods 54 respectively connected to the nuts 54 to move synchronously. Since the driving ends 54b of the two push rods 54 are assembled on the abutting base 3, when the two nuts 52 move towards or away from each other synchronously, the linkage ends 54a of the two push rods 54 will move synchronously with the nuts 52, which causes the driving ends 54b of the two push rods 54 to drive the abutting base 3 to slide accordingly, and realizes linear reciprocating sliding of the abutting base 3 relative to the mounting base 1. For example, turning the double-headed screw 50 in a predetermined rotation direction (such as clockwise) can cause the abutting base 3 to slide away from the mounting base 1 and be tightly abutted against the corresponding wall to fix the upper beam B. When turning the double-headed screw in the opposite direction, the abutting base will slide towards the mounting base and loosen from the wall, making it easy to remove the upper beam B.

[0044] In specific implementation, in order to facilitate the exposure of the operation end 50a of the double-headed screw 50, through holes 10 can be correspondingly defined in the mounting base 1 and the upper beam B, for the exposure of the operation end 50a. At the same time, the both ends of the double-headed screw 50 each can serve as the operation end 50a. In addition, an end face of the operation end 50a can define a driving hole with a non-circular cross-section, or the end of the operation end 50a can have a driving shaft head with a non-circular cross-section, which is convenient for users to operate. Additionally, as shown in FIGS. 1-2, the mounting base 1 is formed by interlocking upper and lower shells, which facilitates production and structural assembly.

[0045] In an embodiment of the present application, as shown in FIGS. 4-5 and 7-8, the adjustment mechanism 5 further includes two support rods 56.

[0046] The support rods 56 are symmetrically arranged relative to the symmetry plane M. One end of each support rod 56 serves as a rotation end 56a, which is rotatably connected to the mounting base 1 through a first pivot 561. The other ends of the two support rods 56 serve as support ends 56b, which are rotatably connected to the corresponding nuts 52 through second pivots 563, respectively. Central axes of the first pivots 561 and the second pivots 563 are all perpendicular to the axial direction of the double-headed screw 50. In the embodiment, the two support rods 56 are provided, so that the mounting base 1 is connected to the two nuts 52 through the two support rods56, and the double-headed screw 50 is assembled to the mounting base 1. An adjustable stroke of the overall adjustment mechanism 5 is longer, and the structural stability is better.

[0047] In an embodiment of the present application, the linkage ends 54a of the two push rods 54 are rotatably connected to the two nuts 52 through third pivots 541 in a one-to-one correspondence. In the embodiment, the linkage ends 54a of the two push rods 54 are rotatably connected to the two nuts 52 through the third pivots 541, making the assembly structure relatively simpler and easy to install. In specific implementation, as shown in FIG. 7, the third pivots 541 and the corresponding second pivots 563 can be set separately, or, as shown in FIGS. 4 and 8, the third pivots 541 and the corresponding second pivots 563 share the same pivots.

[0048] In an embodiment of the present application, as shown in FIG. 9, the driving ends 54b of the two push rods 54 are rotatably connected to the abutting base 3 through fourth pivots 543. The third pivots 541 and the fourths pivot 543 are parallel, and are perpendicular to the axial direction of the double-headed screw 50, or, as shown in FIG. 10, the abutting base 3 defines two guide slots 3a extending parallel to the axial direction of the double-headed screw 50, and the driving ends 54b of the two push rods 54 are both provided with rollers 3b, which are correspondingly arranged in the guide slots 3a. In the embodiments, two different implementation methods are provided to achieve the linear movement of the abutting base3 relative to the mounting base 1 driven by the driving ends 54b of the two push rods 54, which are that the driving ends 54b of the two push rods 54 can be rotatably connected to the abutting base 3 through the fourth pivots 543, or can be installed with the rollers being assembled in the guide slots 3a to roll, both of which can achieve the driving of the pushing rods 54 to the abutting base 3. In specific implementation, the connection method between the push rods 54 and the abutting base 3 can be flexibly selected according to the installation difficulty and design cost.

[0049] In an embodiment of the present application, as shown in FIGS. 4 and 5, the adjustment mechanism 5 further includes a telescopic component 58.

[0050] The telescopic component 58 is hinged in an X-shape by two connecting rods 581 through a hinge shaft 583. Corresponding ends of the two connecting rods 581 are respectively rotatably connected to the two nuts 52 through the third pivots 541, while opposite ends are respectively rotatably connected to the linkage ends 54a of the two push rods 54 through fifth pivots 545. The hinge shaft 583, the third pivots 541, and the fifth pivots 545 are parallel, and are all perpendicular to the axial direction of the double-headed screw 50. In the embodiment, the telescopic component 58 is also provided, which is formed by the two connecting rods 581 hinged in an X-shape with the help of the hinge shaft 583, thereby using the telescopic component 58 to increase the adjustable stroke of the adjustment mechanism 5.

[0051] In an embodiment of the present application, as shown in FIGS. 4 and 5, two sets of parallel telescopic components 58 are provided. The two opposite ends of each connecting rod 581 define pivot holes 581a, and the third pivots 541 coaxially extend from opposite sides of each nut 52 and are respectively rotatably engaged in the pivot holes 581a in the corresponding ends of two connecting rods 581 of the telescopic components 58 belonging to different sets. Each push rod 54 is in the shape of an I-shape and includes two parallel horizontal parts 547 and a connecting part 549 connected between middles of the two horizontal parts 547. One end of each horizontal part 547 is provided with a pivot portion 547a. Each fifth pivot 545 correspondingly extends through the pivot holes 581a defined in the corresponding ends of the corresponding connecting rods 581 of the two telescopic components 58 belonging to different sets, with both ends being rotatably engaged in the pivot portions 547a of the two horizontal portions 547 of a corresponding push rod 54. In the embodiment, the two sets of parallel telescopic components 58 are set, and the two connecting rods 581 of each set of telescopic component 58 correspond to the horizontal parts of the two push rods 54, resulting in stronger overall structural stability. At the same time, the push rod 54 adopts an I-shaped design, which is also more lightweight.

[0052] It can be understood that in order to facilitate the rotation installation of the ends of the fifth pivots 545, the pivot portions 547a can use pivot holes, or pivot slots. In the embodiment shown in FIG. 4, a laterally open pivot slot is used. In addition, in some embodiments, the support rods 56 and the push rods 54 can adopt the same structural design, so as to correspondingly cooperate with the first pivots 561 and the second pivots 563 to rotatably connect the mounting base 1 and the nuts 52, respectively, and thereby facilitating the production and assembly of related components and reducing costs.

[0053] In an embodiment of the present application, as shown in FIGS. 4 and 5, adjacent sides of the rotation ends 56a of the two support rods 56 are respectively provided with first teeth 56c that maintain mutual meshing when the two support rods 56 rotate about the first pivots 561. In the embodiment, the rotation ends 56a of the two support rods 56 are also meshed with each other through the first teeth 56c, thereby ensuring the synchronization of the rotation of the two support rods 56 and making the structure more stable.

[0054] In an embodiment of the present application, as shown in FIGS. 4 and 5, adjacent sides of the driving ends 54b of the two push rods 54 are respectively provided with second teeth 54c that maintain mutual meshing when the two push rods 54 rotate about the fourth pivots 543. In the embodiment, the synchronization of the rotation of the two push rods 54 is ensured and the structure is more stable by meshing the driving ends 54b of the two push rods 54 with each other through the second teeth 54c.

[0055] In an embodiment of the present application, as shown in FIG. 5, and 11-12, the abutting base 3 includes a main base 30, a telescopic block 32, and an elastic member 34.

[0056] One end of the main base 30 is connected to the driving ends of the push rods 54, and the main base 30 also defines two guide holes 301 that extend through the main base 30 in the sliding direction of the abutting base 3.

[0057] The telescopic block 32 is set on a side of the main base 30 facing away from the mounting base 1. Two guide poles 321 extend from a side of the telescopic block 32 facing the main base 30, to be inserted into the corresponding guide holes 301, and an anti-slip gasket 323 extends from a side of the telescopic block 32 opposite to the main base 30. An anti-detachment structure 33 is set between the telescopic block 32 and the main base 30, to prevent the telescopic block 32 from detaching from the main base 30.

[0058] The elastic member 34 is set between the main base 30 and the telescopic block 32, with opposite ends being respectively abutted against the main base 30 and the telescopic block 32.

[0059] In the embodiment, the abutting base 3 includes the main base 30, the telescopic block 32, and the elastic member 34. The telescopic block 32 is abutted against the wall through the anti-slip gasket 323, which can effectively prevent relative sliding between the compression plate 32 and the abutted wall, and the elastic member 34 can promote the compression plate 32 being elastically abutted against the wall, both of which can improve the stability of the positioning of the telescopic block 32 against the wall. At the same time, the elastic member 34 can also assist in pushing the telescopic block 32 when installing the upper beam B, so that the telescopic block 32 can move and be easily assembled. The anti-detachment structure 33 is adopted to prevent the compression plate 32 from detaching. Moreover, by utilizing the mutual insertion and coordination between the guide poles 321 and the guide holes 301, the movement of the telescopic block 32 relative to the main base 30 can be effectively guided, improving the smoothness of the movement of the telescopic block 32. In specific implementation, the elastic member 34 can be implemented using coil springs, or compression springs. In the embodiment, two coil springs are used that are fitted about the guide poles 321, and multiple corresponding ones can be set to enhance the elastic thrust force. In addition, to prevent the telescopic block 32 from detaching from the main base 30, there are many embodiments of the anti-detachment structure 33. For example, as shown in FIGS. 11 and 12, anti-detachment slots 330 and anti-detachment elastic hooks 332 are interlocked to achieve anti-detachment, or anti-detachment pins are plugged into anti-detachment slots, or anti-detachment blocks are respectively set on the telescopic block 32 and the main base 30 for mutual contact and cooperation.

[0060] On the other hand, as shown in FIGS. 1-3, the present embodiment provides a curtain including an upper beam B and a non-punching installation device for the upper beam assembled on at least one end of the upper beam B. The non-punching installation device A is the non-punching installation device as described in any one of the above. In the embodiment, the curtain adopts the aforementioned non-punching installation device A, which has a simpler installation structure.

[0061] The embodiments of the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to the specific implementations described above, and the specific implementations described above are only schematic and not limiting. Under the enlightenment of this invention, many forms can be made without departing from the scope of this invention and the scope of protection of the claims, and these are all included in the scope of protection of this invention.

Examples

Embodiment Construction

[0038]The present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the following illustrative embodiments and illustrations are only used to explain the present invention and are not intended to limit the present invention, and that the embodiments of the present invention and the features of the embodiments can be combined with each other without conflict.

[0039]Referring to FIGS. 1-10, an embodiment of the present invention provides a non-punching installation device A for an upper beam, including a mounting base 1 with one end fixed to an end of the upper beam B, an abutting base 3 assembled on the mounting base 1 for linear reciprocating sliding to be abutted against a wall on one side of a window, and an adjustment mechanism 5 assembled on the mounting base 1 for driving the abutting base 3 to linearly reciprocating slide relative to the end of the upper beam B. The adjustment mechanis...

Claims

1. A non-punching installation device for a curtain upper beam, comprising:a mounting base with one end fixed to an end of the upper beam;an abutting base assembled on the mounting base for linear reciprocating sliding to be abutted against a wall on one side of a window; andan adjustment mechanism assembled on the mounting base, for driving the abutting base to linearly reciprocating slide relative to the end of the upper beam; wherein the adjustment mechanism comprises:a double-headed screw assembled on the mounting base and fixed relative to the mounting base in an axial direction, wherein two opposite ends of the double-headed screw are respectively provided with a first external thread and a second external thread with opposite spiral directions, and at least one end of the double-headed screw is exposed from the mounting base as an operation end;two nuts respectively threaded with the first external thread and the second external thread at the both ends of the double-headed screw, and movable synchronously towards or away from each other in the axial direction under the driving of the double-headed screw; andtwo push rods symmetrically arranged with respect to a symmetrical plane that extends through a midpoint of a distance between the two nuts and is perpendicular to the axial direction of the double-headed screw, wherein corresponding ends of the two push rods as linkage ends are connected to the two nuts for one-to-one corresponding transmission, and move synchronously under the driving of the two nuts; wherein opposite ends of the two push rods as driving ends are assembled on the abutting base and are relatively fixed with the abutting base in a sliding direction of the abutting base; wherein when the linkage ends move synchronously with the nuts, the driving ends drive the abutting base to slide accordingly.

2. The non-punching installation device of claim 1, wherein the adjustment mechanism further comprises:two support rods symmetrically arranged relative to the symmetry plane, one end of each support rod functions as a rotation end rotatably connected to the mounting base through a first pivot, the other ends of the two support rods function as support ends rotatably connected to the corresponding nuts through second pivots; central axes of the first pivot and the second pivots are all perpendicular to the axial direction of the double-headed screw.

3. The non-punching installation device 1 or 2, wherein the linkage ends of the two push rods are rotatably connected to the two nuts through third pivots in a one-to-one correspondence.

4. The non-punching installation device of claim 1, wherein the driving ends of the two push rods are rotatably connected to the abutting base through fourth pivots, the third pivots and the fourth pivots are parallel, and are perpendicular to the axial direction of the double-headed screw, or, the abutting base defines two guide slots extending parallel to the axial direction of the double-headed screw, and the driving ends of the two push rods are both provided with rollers, which are correspondingly arranged in the guide slots.

5. The non-punching installation device of claim 1, 2, or 4, wherein the adjustment mechanism further comprises:a telescopic component hinged in an X-shape by two connecting rods through a hinge shaft, corresponding ends of the two connecting rods are respectively rotatably connected to the two nuts through the third pivots, while opposite ends are respectively rotatably connected to the linkage ends of the two push rods through fifth pivots; the hinge shaft, the third pivots, and the fifth pivots are parallel, and are perpendicular to the axial direction of the double-headed screw.

6. The non-punching installation device of claim 5, wherein two parallel sets of said telescopic components are provided, the two opposite ends of each connecting rod define pivot holes, and the third pivots coaxially extend from opposite sides of each nut and are respectively rotatably engaged in the pivot holes in the corresponding ends of two connecting rods of the telescopic components belonging to different sets; wherein each push rod is in the shape of an I-shape and comprises two parallel horizontal parts and a connecting part connected between middles of the two horizontal parts, one end of each horizontal part is provided with a pivot portion, each fifth pivot correspondingly extends through the pivot holes defined in the corresponding ends of the corresponding connecting rods of the two telescopic components belonging to different sets, and both ends of the fifth pivot are rotatably engaged in the pivot portions of the two horizontal portions of a corresponding push rod.

7. The non-punching installation device of claim 2, wherein adjacent sides of the rotation ends of the two support rods are respectively provided with first teeth that maintain mutual meshing when the two support rods rotate about the first pivots.

8. The non-punching installation device of claim 3, wherein adjacent sides of the driving ends of the two push rods are respectively provided with second teeth that maintain mutual meshing when the two push rods rotate about the fourth pivots.

9. The non-punching installation device of claim 1, wherein the abutting base comprises:a main base with one end of the main base being connected to the driving ends of the push rods, wherein the main base defines two guide holes that extend through the main base in the sliding direction of the abutting base;a telescopic block set on a side of the main base facing away from the mounting base, wherein two guide poles extend from a side of the telescopic block facing the main base, to be inserted into the corresponding guide holes, an anti-slip gasket extends from a side of the telescopic block opposite to the main base, and an anti-detachment structure is set between the telescopic block and the main base, to prevent the telescopic block from detaching from the main base; andan elastic member set between the main base and the telescopic block, with opposite ends being respectively abutted against the main base and the telescopic block.

10. A curtain comprising:an upper beam; anda non-punching installation device mounted to at least one end of the upper beam;wherein the non-punching installation device is the non-punching installation device of any one of claims 1-9.

Images