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 mounting device thereof, and the device comprises a mounting seat, a pressing seat which can be assembled on the mounting seat in a linear reciprocating sliding manner, and an adjusting mechanism assembled on the mounting seat, a first external thread and a second external thread which are opposite in spiral direction are arranged at the two opposite ends of the double-thread screw correspondingly. The two nuts are driven by the double-thread screw to synchronously move towards or away from each other in the axial direction; the two push rods are symmetrically arranged relative to a symmetric plane which passes through the middle point of the distance between the two nuts and is axially perpendicular to the double-thread screw, and one ends of the two push rods serve as linkage ends, are in transmission connection with the two nuts in a one-to-one correspondence mode and are driven by the two nuts to synchronously move. The other opposite ends of the two push rods serve as driving ends to be assembled on the abutting seat and are relatively fixed with the abutting seat in the sliding direction of the abutting seat, and when the linkage ends synchronously move along with the nut, the driving ends drive the abutting seat to correspondingly slide. The embodiment is simple in structure and easy to operate.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of curtain accessories, and in particular to a curtain and an upper beam mounting device thereof that does not require punching holes. Background Art

[0002] The curtain top beam punch-free installation device has gradually become popular because of its convenience in quickly installing and positioning the curtain top beam without punching holes.

[0003] An existing punch-free installation device for a curtain upper beam primarily comprises: a mounting base with one end fixed to the end of the upper beam and having an internal cavity; a linkage member with a worm gear and a screw rod at each end, with one end of the worm gear extending into the mounting base's cavity; a worm assembled within the mounting base and meshing with the worm gear of the linkage member to drive the linkage member's rotation; an adjustable top block with one end extending into the mounting base; a locking member threaded onto the screw rod of the linkage member to limit the axial movement of the adjustable top block toward the interior of the mounting base; and an elastic member with two ends abutting the locking member and the adjustable top block. The adjustable top block is propelled outward by the elastic member and pressed against the wall. One end of the worm is exposed from the mounting base to facilitate its operation. When specifically used for assembling the upper beam, one end of the mounting seat of the device is fixed to the end of the upper beam, and then the adjusting top block is pushed inward to move it slightly inward so that the upper beam can be installed in the window frame. Under the action of the elastic member, the adjusting top block is pressed against the installation wall surfaces on both sides of the window frame to achieve pre-installation, and then the worker drives the worm to drive the linkage member to rotate, so that the locking member moves axially toward the adjusting top block to press against the adjusting top block and prevent the adjusting top block from elastically shrinking, thereby realizing punch-free installation and being compatible with window frames of different widths within a small range.

[0004] However, the inventors found during the specific implementation that the punch-free installation device has a relatively complex structure, relatively many parts, and is relatively troublesome to produce.

[0005] Technical issues The technical problem to be solved by the embodiments of the present application is to provide a drilling-free installation device for curtain upper beams, which has a simple structure and is easy to operate.

[0006] The technical problem to be solved by the embodiments of the present application is to provide a curtain with a simple and easy-to-operate installation structure.

[0007] Technical Solutions To solve the above technical problems, the present invention provides the following technical solutions: a device for installing a curtain upper beam without punching holes, comprising a mounting base fixed at one end to the end of the upper beam, a pressing base assembled on the mounting base for linear reciprocating sliding to press against the wall on one side of the window body, and an adjustment mechanism assembled on the mounting base for driving the pressing base to slide linearly reciprocatingly relative to the end of the upper beam, the adjustment mechanism comprising: a double-headed screw assembled on the mounting base and fixed relative to the mounting base in the axial direction, wherein the 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 operating end; Two nuts respectively threadedly connected to the first external thread and the second external thread at both ends of the double-start screw and synchronously moving toward or away from each other in the axial direction under the drive of the double-start screw; and Two push rods are symmetrically arranged relative to a symmetrical plane passing through the midpoint of the distance between the two nuts and perpendicular to the axial direction of the double-headed screw. One end of the two push rods serves as a linkage end and is transmission-connected to the two nuts one-to-one and moves synchronously driven by the two nuts. The other ends of the two push rods serve as driving ends and are assembled on the pressure seat as driving ends and are relatively fixed with the pressure seat in the sliding direction of the pressure seat. When the linkage end moves synchronously with the nut, the driving end drives the pressure seat to slide accordingly.

[0008] Furthermore, the regulating mechanism further includes: Two support rods are symmetrically arranged relative to the symmetry plane, and one end of each support rod is pivotally connected to the mounting seat by means of a first pivot as a pivot end, and the other end of the two support rods is pivotally connected to the two nuts one by one by means of a second pivot as a support end, and the central axes of the first pivot and the second pivot are both perpendicular to the axial direction of the double-headed screw.

[0009] Furthermore, the linkage ends of the two push rods are directly pivotally connected to the two nuts in a one-to-one correspondence by means of a third pivot.

[0010] Furthermore, the driving ends of the two push rods are pivotally connected to the pressure seat by means of a fourth pivot, and the third pivot and the fourth pivot are parallel to and perpendicular to the axial direction of the double-headed screw; or, the pressure seat is provided with a guide groove extending parallel to the axial direction of the double-headed screw, and the driving ends of the two push rods are provided with rollers and the rollers are correspondingly arranged in the guide groove.

[0011] Furthermore, the regulating mechanism further includes: The telescopic assembly is composed of two connecting rods hinged in an X shape by means of a hinge axis, one end of the two connecting rods is pivoted to the two nuts one by one by means of a third pivot, and the other end is pivoted to the connecting ends of the two push rods one by one by means of a fifth pivot, and the hinge axis, the third pivot and the fifth pivot are parallel and perpendicular to the axial direction of the double-headed screw.

[0012] Furthermore, two groups of telescopic components arranged parallel to each other are provided, and pivot holes are provided at opposite ends of each connecting rod. The opposite sides of each nut coaxially protrude outward to form two third pivots pivotally connected to the pivot holes on the corresponding ends of the corresponding connecting rods of the two telescopic components belonging to different groups. The push rod is I-shaped and includes two cross bar portions arranged parallel to each other and a connecting portion connected between the middle parts of the two cross bar portions. A pivot portion is provided at one end of each cross bar portion, and each fifth pivot corresponds to the pivot holes at the corresponding ends of the corresponding connecting rods of the two telescopic components belonging to different groups and has its two ends correspondingly pivotally connected to the pivot portions of the two cross bar portions of a corresponding push rod.

[0013] Furthermore, adjacent side surfaces of the pivotal ends of the two support rods are respectively provided with first latching teeth for maintaining mutual engagement when the two support rods rotate around the first pivot.

[0014] Furthermore, adjacent side surfaces of the driving ends of the two push rods are respectively provided with second latching teeth that remain in mutual engagement when the two push rods rotate around the fourth pivot.

[0015] Furthermore, the pressing seat includes: A base, one end of which is linked to the driving end of the push rod, and the base is further provided with a guide hole penetrating the base along the sliding direction of the pressing seat; a telescopic block disposed on a side of the base facing away from the mounting base, the telescopic block protruding toward the side of the base corresponding to the guide post inserted into the guide hole, and a non-slip pad being provided on the side facing away from the base, and an anti-slip structure being provided between the telescopic block and the base to prevent the telescopic block from separating from the base; and The elastic element is arranged between the base and the telescopic block, and its two opposite ends are respectively in contact with the base and the telescopic block.

[0016] On the other hand, in order to solve the above-mentioned further technical problems, the embodiments of the present application provide the following technical solutions: a curtain, comprising an upper beam and an upper beam punch-free installation device assembled at at least one end of the upper beam, the upper beam punch-free installation device being a curtain upper beam punch-free installation device as described in any one of the above items.

[0017] Beneficial effects After adopting the above technical solution, the embodiment of the present application has at least the following beneficial effects: the embodiment of the present application designs the first external thread and the second external thread at the opposite ends of the double-headed screw to have opposite spiral directions. Therefore, when the user screws the double-headed screw through the operating end, the two nuts respectively threaded on the first external thread and the second external thread will move toward or away from each other synchronously, and will drive the two push rods and the connecting ends of the two nuts to move synchronously in a one-to-one transmission connection. Since the driving ends of the two push rods are assembled on the pressure seat, when the two nuts move toward or away from each other synchronously, the connecting ends of the two push rods move synchronously with the nuts, and then the driving ends of the two push rods will drive the pressure seat to slide accordingly, thereby realizing linear reciprocating sliding of the pressure seat relative to the mounting seat. For example, turning the stud screw in a predetermined rotation direction (such as clockwise) can cause the pressure seat to slide away from the mounting seat and then press against the corresponding wall to fix the upper beam. When the stud screw is turned in the opposite direction, the pressure seat will slide toward the mounting seat and loosen from the wall, making it easier to remove the upper beam. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of an optional embodiment of the punch-free installation device for the curtain upper beam of this application and the split structure of the upper beam.

[0019] Figure 2 This is a structural schematic diagram of an optional embodiment of the curtain upper beam punch-free installation device of the present application after the adjustment mechanism is installed in the mounting base.

[0020] Figure 3 This is a schematic diagram of an optional embodiment of the punch-free installation device for the curtain upper beam of this application and the assembly structure of the upper beam.

[0021] Figure 4 This is a schematic diagram of the disassembled structure of the adjustment mechanism of an optional embodiment of the curtain upper beam punch-free installation device of the present application.

[0022] Figure 5 This is a schematic diagram of the cross-sectional structure along the longitudinal mid-axis of an optional embodiment of the punch-free installation device for the curtain upper beam of the present application.

[0023] Figure 6 This is a schematic diagram of the cross-sectional structure of an optional embodiment of the curtain upper beam punch-free installation device of the present application along the length of the double-headed screw.

[0024] Figure 7 This is a top view schematic diagram of the principle of an optional embodiment of the punch-free installation device for the curtain upper beam of this application.

[0025] Figure 8 This is a top view schematic diagram of the principle of another optional embodiment of the punch-free installation device for the curtain upper beam of the present application.

[0026] Figure 9 This is a top view schematic diagram of the principle of another optional embodiment of the punch-free installation device for the curtain upper beam of the present application.

[0027] FIG10 is a top view schematic diagram of another optional embodiment of the punch-free installation device for the curtain upper beam of the present application.

[0028] FIG11 is a schematic structural diagram of a disassembled pressure seat of an optional embodiment of the curtain upper beam punch-free installation device of the present application.

[0029] FIG12 is a cross-sectional schematic diagram of the assembly portion of the mounting seat and the pressing seat of an optional embodiment of the punch-free installation device for the curtain upper beam of the present application.

[0030] Modes for Carrying Out the Invention The present application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the following exemplary 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 may be combined with each other unless there is a conflict.

[0031] like Figure 1-Figure 1 0, an optional embodiment of the present application provides a punch-free installation device A for a curtain upper beam, comprising a mounting base 1 having one end fixed to an end portion of an upper beam B, a pressing base 3 assembled on the mounting base 1 for linearly reciprocating sliding and for pressing against a wall on one side of the window body, and an adjustment mechanism 5 assembled on the mounting base 1 for driving the pressing base 3 to linearly reciprocate relative to the end portion of the upper beam B. The adjustment mechanism 5 comprises: A double-ended screw 50 is assembled on the mounting base 1 and fixed axially relative to the mounting base 1. The double-ended screw 50 has a first external thread 501 and a second external thread 503 with opposite spiral directions at opposite ends, and at least one end is exposed from the mounting base 1 as an operating end 50a. Two nuts 52 that are respectively threadedly connected to the first external threads 501 and the second external threads 503 at both ends of the double-headed screw 50 and move synchronously toward or away from each other in the axial direction under the drive of the double-headed screw 50; and Two push rods 54 are symmetrically arranged relative to a symmetry plane M passing through the midpoint of the distance between the two nuts 52 and axially perpendicular to the double-headed screw 50. One end of the two push rods 54 serves as a linkage end 54a which is transmission-connected to the two nuts 52 in a one-to-one correspondence and moves synchronously driven by the two nuts 52. The other end of the two push rods 54 serves as a driving end 54b which is assembled on the pressure seat 3 and is relatively fixed to the pressure seat 3 in the sliding direction of the pressure seat 3. When the linkage end moves synchronously with the nut 52, the driving end 54b drives the pressure seat 3 to slide accordingly.

[0032] The embodiment of the present 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 user screws the double-headed screw 50 in different directions through the operating end 50a, the two nuts 52 respectively screwed on the first external thread 501 and the second external thread 503 will move toward or away from each other synchronously, and will drive the two push rods 54 and the connecting ends 54a of the two nuts 52 to move synchronously in a one-to-one transmission connection. Since the driving ends 54b of the two push rods 54 are assembled on the pressure seat 3, when the two nuts 52 move toward or away from each other synchronously, the connecting ends 54a of the two push rods 54 move synchronously with the nuts 52, thereby causing the driving ends 54b of the two push rods 54 to drive the pressure seat 3 to slide accordingly, thereby realizing linear reciprocating sliding of the pressure seat 3 relative to the mounting seat 1. For example, turning the stud screw 50 in a predetermined rotation direction (such as clockwise) can cause the pressure seat 3 to slide away from the mounting seat 1 and then press against the corresponding wall to fix the upper beam B. When the stud screw is turned in the opposite direction, the pressure seat will slide toward the mounting seat and loosen from the wall, making it easier to remove the upper beam B.

[0033] In a specific implementation, in order to facilitate the exposure of the operating end 50a of the double-headed screw 50, a through hole 10 can be correspondingly opened on the mounting base 1 and the upper beam B to expose the operating end 50a; at the same time, both ends of the double-headed screw 50 can serve as the operating end 50a; in addition, the end surface of the operating end 50a can form a driving hole with a non-circular cross-section, or the end of the operating end 50a has a driving shaft head with a non-circular cross-section, which is convenient for the user to operate; in addition, Figure 1-Figure 2 As shown, the mounting base 1 is formed by buckling an upper shell and a lower shell, thereby facilitating production and structural assembly.

[0034] In an optional embodiment of the present application, Figure 4-Figure 5 、 Figure 7-Figure 8 As shown, the adjustment mechanism 5 also includes: Two support rods 56 are symmetrically arranged relative to the symmetry plane M. One end of each support rod 56 serves as a pivot end 56a, pivotally connected to the mounting base 1 via a first pivot 561. The other ends of the two support rods 56 serve as support ends 56b, pivotally connected to the two nuts 52 in a one-to-one correspondence via a second pivot 563. The central axes of the first pivot 561 and the second pivot 563 are both perpendicular to the axial direction of the stud screw 50. In this embodiment, by providing two support rods 56, the mounting base 1 utilizes the two support rods 56 to connect the two nuts 52, thereby assembling the stud screw 50 to the mounting base 1. This increases the adjustable travel of the overall adjustment mechanism 5 and improves the structural stability.

[0035] In an optional embodiment of the present application, the linkage ends 54a of the two push rods 54 are directly pivotally connected to the two nuts 52 in a one-to-one correspondence by means of the third pivot 541. In this embodiment, the linkage ends 54a of the two push rods 54 are directly pivotally connected to the two nuts 52 in a one-to-one correspondence by means of the third pivot 541, and the assembly structure is relatively simpler and convenient for installation. In specific implementation, as Figure 7 As shown, the third pivot 541 and the second pivot 563 may be separately provided; or, as shown Figure 4 and Figure 8 As shown, the third pivot 541 and the second pivot 563 share a common pivot.

[0036] In an optional embodiment of the present application, Figure 9 As shown, the driving ends 54b of the two push rods 54 are pivotally connected to the pressure seat 3 by means of the fourth pivot 543, and the third pivot 541 and the fourth pivot 543 are parallel to and perpendicular to the axial direction of the double-headed screw 50; or, as shown in Figure 10, the pressure seat 3 is provided with a guide groove 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 and the rollers 3b are correspondingly arranged in the guide groove 3a. In this embodiment, in order to realize that the driving ends 54b of the two push rods 54 can drive the pressure seat 3 to move linearly relative to the mounting seat 1, two different implementation methods are provided. The driving ends 54b of the two push rods 54 can be directly pivoted to the pressure seat 3 with the help of the fourth pivot 543, or can be installed in the guide groove 3a with the use of rollers to roll. Both of these can realize the driving of the pressure seat 3 by the push rod 54. During specific implementation, the connection method between the push rod 54 and the pressure seat 3 can be flexibly selected according to the difficulty of installation and the design cost.

[0037] In an optional embodiment of the present application, Figure 4 and Figure 5 As shown, the adjustment mechanism 5 also includes: The telescopic assembly 58 comprises two connecting rods 581 hinged in an X-shape via hinge shafts 583. One end of the two connecting rods 581 is pivotally connected to the two nuts 52 in a one-to-one correspondence via a third pivot 541, while the other end is pivotally connected to the linkage ends 54a of the two push rods 54 in a one-to-one correspondence via a fifth pivot 545. The hinge shafts 583, the third pivot 541, and the fifth pivot 545 are parallel and perpendicular to the axial direction of the double-headed screw 50. In this embodiment, the telescopic assembly 58 is further provided, which is formed by the two connecting rods 581 hinged in an X-shape via the hinge shafts 583. This increases the adjustable travel of the adjustment mechanism 5.

[0038] In an optional embodiment of the present application, Figure 4 and Figure 5As shown, there are two groups of telescopic components 58 arranged parallel to each other, and each of the two opposite ends of the connecting rod 581 is provided with a pivot hole 581a, and the opposite sides of each nut 52 coaxially protrude outward to form two third pivots 541 pivotally connected to the pivot holes 581a on the corresponding ends of the corresponding connecting rods 581 of the two telescopic components 58 belonging to different groups. The push rod 54 is I-shaped and includes two cross rod portions 547 arranged parallel to each other and a connecting portion 549 connected between the middle parts of the two cross rod portions 547, and one end of each cross rod portion 547 is provided with a pivot portion 547a, and each of the fifth pivots 545 corresponds to the pivot holes 581a at the corresponding ends of the corresponding connecting rods 581 of the two telescopic components 58 belonging to different groups and the two ends are correspondingly pivotally connected to the pivot portions 547a of the two cross rod portions 547 of a corresponding push rod 54. In this embodiment, two groups of telescopic components 58 are arranged parallel to each other. The two connecting rods 581 of each group of telescopic components 58 correspond to the cross bar parts of the two push rods 54, and the overall structural stability is stronger. At the same time, the push rod 54 adopts an I-shape, and the design is also lighter.

[0039] It is understood that in order to facilitate the pivotal installation of the end of the fifth pivot 545, the pivotal portion 547a can be a pivotal hole, a pivotal groove, etc. Figure 4 In the embodiment, a side-opening pivot groove is used; in addition, in some embodiments, the support rod 56 and the push rod 54 can completely adopt the same structural design, so as to cooperate with the first pivot 561 and the second pivot 563 to pivotally connect the mounting seat 1 and the nut 52 respectively, thereby facilitating the production and assembly of related components and reducing costs.

[0040] In an optional embodiment of the present application, Figure 4 and Figure 5 As shown, adjacent side surfaces of the pivotal ends 56a of the two support rods 56 are respectively provided with first latching teeth 56c that engage with each other when the two support rods 56 rotate about the first pivot axis 561. In this embodiment, by engaging the pivotal ends 56a of the two support rods 56 with each other via the first latching teeth 56c, synchronization of the rotation of the two support rods 56 is ensured, and the structure is more stable.

[0041] In an optional embodiment of the present application, Figure 4 and Figure 5 As shown, adjacent side surfaces of the driving ends 54b of the two push rods 54 are further provided with second latching teeth 54c that engage with each other when the two push rods 54 rotate about the fourth pivot 543. In this embodiment, by engaging the driving ends 54b of the two push rods 54 with each other via the second latching teeth 54c, synchronization of the rotation of the two push rods 54 is ensured, and the structure is more stable.

[0042] In an optional embodiment of the present application, Figure 5 As shown in FIG11 and FIG12, the pressing seat 3 includes: The base 30 has one end linked to the driving end of the push rod 54, and the base 30 is further provided with a guide hole 301 penetrating the base 30 along the sliding direction of the pressing seat 3; a telescopic block 32 disposed on a side of the base 30 facing away from the mounting base 1, wherein the telescopic block 32 has a guide post 321 protruding from the side of the base 30 and correspondingly inserted into the guide hole 301, and an anti-slip pad 323 is provided on the side facing away from the base 30, and an anti-slip structure 33 is provided between the telescopic block 32 and the base 30 to prevent the telescopic block 32 from separating from the base 30; and The elastic element 34 is disposed between the base 30 and the telescopic block 32 , with opposite ends thereof respectively abutting against the base 30 and the telescopic block 32 .

[0043] In this embodiment, the pressing seat 3 is composed of a base 30, a telescopic block 32, and an elastic element 34. The telescopic block 32 is pressed against the wall via an anti-slip pad 323, effectively preventing the telescopic block 32 from sliding relative to the wall. The elastic element 34 can elastically press the telescopic block 32 against the wall, thereby improving the stability of the telescopic block 32 in its position against the wall. At the same time, the elastic element 34 can also assist in pushing the telescopic block 32 when installing the upper beam B, allowing the telescopic block 32 to move, facilitating assembly. The anti-slip structure 33 is used to prevent the telescopic block 32 from detaching. The guide post 321 and the guide hole 301 are plugged into each other to effectively guide the movement of the telescopic block 32 relative to the base 30, improving the stability of the movement of the telescopic block 32. In a specific embodiment, the elastic element 34 can be implemented by a coil spring, a compression spring, etc. In this embodiment, a coil spring is used that is sleeved on the guide post 321, and a plurality of coil springs can be provided accordingly to improve the elastic thrust. In addition, in order to prevent the telescopic block 32 from detaching from the base 30, there are many implementation methods of the anti-detachment structure 33, for example: as shown in Figures 11 to 12, the anti-detachment slide 330 and the anti-detachment elastic hook 332 are hooked together to achieve anti-detachment, or the anti-detachment slide is plugged into the anti-detachment pin, or anti-detachment blocks are respectively provided on the telescopic block 32 and the base 30 for abutting against each other, etc.

[0044] On the other hand, Figures 1 to 3 As shown, an embodiment of the present application provides a curtain comprising an upper beam B and a punch-free upper beam mounting device assembled to at least one end of the upper beam B. The punch-free upper beam mounting device A is any of the above-described curtain upper beam punch-free mounting devices. In this embodiment, the curtain employs the aforementioned punch-free upper beam mounting device A, resulting in a simpler mounting structure.

[0045] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, which all fall within the scope of protection of this application.

Claims

1. A punch-free installation device for a curtain upper beam, comprising a mounting base having one end fixed to an end of the upper beam, a pressing base assembled on the mounting base for linearly reciprocating sliding to press against a wall on one side of the window, and an adjustment mechanism assembled on the mounting base for driving the pressing base to linearly reciprocate relative to the end of the upper beam, characterized in that: The regulating mechanism comprises: a double-headed screw assembled on the mounting base and fixed relative to the mounting base in the axial direction, wherein the 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 operating end; Two nuts respectively threadedly connected to the first external thread and the second external thread at both ends of the double-start screw and synchronously moving toward or away from each other in the axial direction under the drive of the double-start screw; and Two push rods are symmetrically arranged relative to a symmetrical plane passing through the midpoint of the distance between the two nuts and perpendicular to the axial direction of the double-headed screw. One end of the two push rods serves as a linkage end and is transmission-connected to the two nuts one-to-one and moves synchronously driven by the two nuts. The other ends of the two push rods serve as driving ends and are assembled on the pressure seat as driving ends and are relatively fixed with the pressure seat in the sliding direction of the pressure seat. When the linkage end moves synchronously with the nut, the driving end drives the pressure seat to slide accordingly.

2. The curtain upper beam punch-free installation device according to claim 1, characterized in that: The regulating mechanism further comprises: Two support rods are symmetrically arranged relative to the symmetry plane, and one end of each support rod is pivotally connected to the mounting seat by means of a first pivot as a pivot end, and the other end of the two support rods is pivotally connected to the two nuts one by one by means of a second pivot as a support end, and the central axes of the first pivot and the second pivot are both perpendicular to the axial direction of the double-headed screw.

3. The curtain upper beam punch-free installation device according to claim 1 or 2, characterized in that: The linkage ends of the two push rods are directly pivotally connected to the two nuts in a one-to-one correspondence by means of a third pivot.

4. The curtain upper beam punch-free installation device according to claim 1, characterized in that: The driving ends of the two push rods are pivotally connected to the pressure seat by means of a fourth pivot, and the third pivot and the fourth pivot are parallel to and perpendicular to the axial direction of the double-headed screw; or, the pressure seat is provided with a guide groove extending parallel to the axial direction of the double-headed screw, and the driving ends of the two push rods are provided with rollers and the rollers are correspondingly arranged in the guide grooves.

5. The curtain upper beam punch-free installation device according to claim 1, 2 or 4, characterized in that: The regulating mechanism further comprises: The telescopic assembly is composed of two connecting rods hinged in an X shape by means of a hinge axis, one end of the two connecting rods is pivoted to the two nuts one by one by means of a third pivot, and the other end is pivoted to the connecting ends of the two push rods one by one by means of a fifth pivot, and the hinge axis, the third pivot and the fifth pivot are parallel and perpendicular to the axial direction of the double-headed screw.

6. The curtain upper beam punch-free installation device according to claim 5, characterized in that: Two groups of telescopic components arranged parallel to each other are provided, and pivot holes are opened at opposite ends of each connecting rod. The opposite sides of each nut coaxially protrude outward to form two third pivots pivotally connected to the pivot holes on the corresponding ends of the corresponding connecting rods of the two telescopic components belonging to different groups. The push rod is I-shaped and includes two cross bar parts arranged parallel to each other and a connecting part connected between the middle parts of the two cross bar parts. A pivot part is provided at one end of each cross bar part, and each fifth pivot passes through the pivot holes at the corresponding ends of the corresponding connecting rods of the two telescopic components belonging to different groups and has its two ends correspondingly pivotally connected to the pivot parts of the two cross bar parts of a corresponding push rod.

7. The curtain upper beam punch-free installation device according to claim 2, characterized in that: The adjacent side surfaces of the pivotal ends of the two support rods are also respectively provided with first latching teeth which keep the two support rods engaged with each other when the two support rods rotate around the first pivot.

8. The curtain upper beam punch-free installation device according to claim 3, characterized in that: Adjacent side surfaces of the driving ends of the two push rods are also respectively provided with second latching teeth which keep in mutual engagement when the two push rods rotate around the fourth pivot.

9. The curtain upper beam punch-free installation device according to claim 1, characterized in that: The pressing seat comprises: A base, one end of which is linked to the driving end of the push rod, and the base is further provided with a guide hole penetrating the base along the sliding direction of the pressing seat; a telescopic block disposed on a side of the base facing away from the mounting base, the telescopic block protruding toward the side of the base corresponding to the guide post inserted into the guide hole, and a non-slip pad being provided on the side facing away from the base, and an anti-slip structure being provided between the telescopic block and the base to prevent the telescopic block from separating from the base; and The elastic element is arranged between the base and the telescopic block, and its two opposite ends are respectively in contact with the base and the telescopic block.

10. A curtain comprising an upper beam and an upper beam punch-free installation device assembled on at least one end of the upper beam, characterized in that: The upper beam punching-free installation device is the curtain upper beam punching-free installation device according to any one of claims 1 to 9.

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