Punchless mounting code for window curtains
By designing a simplified, no-drill mounting bracket structure and utilizing the combination of elastic components and adjusting chains, curtains can be easily installed, solving the problems of complex structures and inconvenient installation in existing technologies, reducing costs and improving installation efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO LIYANG NEW MATERIAL CO LTD
- Filing Date
- 2025-07-28
- Publication Date
- 2026-07-03
AI Technical Summary
Existing curtain no-drill mounting brackets have complex structures, are inconvenient to install, and cannot meet the market's demand for cost reduction and efficiency improvement.
A drilling-free mounting bracket was designed, comprising a mounting base, a top block, an elastic element, an adjusting chain, and an adjusting element. The elastic element opens the top block to press against the wall, while the adjusting chain slides and locks it in place, simplifying the installation process. The adjusting element enables locking and unlocking.
It enables simple and convenient installation of curtains, reduces installation costs, and improves installation efficiency.
Smart Images

Figure CN224440950U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a building shielding device, specifically to a shielding device mounting code. Background Technology
[0002] Curtains typically consist of a horizontal beam, a top rod, the curtain body, and a bottom rod. To adapt to different installation scenarios, various no-drill curtain installation methods are available on the market. These no-drill installations are achieved using mounting brackets located at one or both ends of the horizontal beam. These mounting brackets generally include a base, a top block, a top rod, a locking mechanism, a spring, and a screw. The base connects to the horizontal beam, the top rod presses against the top block, and the top block presses against the spring to provide support, allowing the top block to be supported against the wall. Finally, the locking mechanism locks the top rod in place. The above-mentioned installation structure is complex and inconvenient. To meet the market's demand for cost reduction and efficiency improvement, there is an urgent need to develop new types of no-drill mounting brackets. Utility Model Content
[0003] To solve the above-mentioned technical problems, this utility model provides a curtain installation bracket that is simple in structure and easy to install without drilling.
[0004] This utility model provides a no-drill mounting bracket for curtains, including a mounting base and a top block that can extend out of the mounting base; the mounting base is provided with an adjusting chain for locking or unlocking the top block, one end of the adjusting chain cooperates with the top block, and the other end is provided with an adjusting element, the adjusting surface of the adjusting element is exposed on the mounting base and located on a plane away from the top block in the length direction of the mounting base; the top block is provided with an elastic element for providing elastic support to the top block.
[0005] With the above structure, during installation, the elastic force of the elastic element will push the top block open, allowing it to extend from the mounting base and abut against the wall. At this time, the adjusting element will be used to adjust the adjusting chain, causing it to slide and lock against the top block, thus supporting the top block against the wall. The adjusting element can adjust the adjusting chain to lock the top block, achieving the effect of the top block extending from the mounting base and abutting against the wall. If it is necessary to unlock the top block, the adjusting element will be adjusted in the opposite direction. At this time, since the adjusting chain is no longer pressing against the top block, the top block can be pushed into the mounting base.
[0006] Furthermore, the mounting base includes an end cover, a connecting part, and an adjusting part connected in sequence. The end cover is provided with a mounting hole for the top block to extend out. One end of the top block abuts against the wall surface, and the other end can extend into the connecting part.
[0007] Furthermore, the top block includes a support part and a sleeve part that are connected to each other. The sleeve part is fitted onto the connecting part. A limit post and a connecting post are provided on the inner wall of the support part. A first through hole and a second through hole are provided on the side of the connecting part away from the end cover. The limit post can pass through the connecting part and through the first through hole. The connecting post can be inserted into the connecting part.
[0008] Furthermore, a stop shim is provided at the end of the limiting post away from the support.
[0009] Preferably, the top block includes an adjusting column, one end of which is tightly connected to the connecting column, and the free end of the adjusting column is engaged with one end of the adjusting chain.
[0010] Ideally, the regulating column should be made of metal.
[0011] Furthermore, the elastic element is a spring, with one end of the spring abutting against the inner wall of the mounting base and the other end abutting against the inner wall of the top block.
[0012] Furthermore, the adjusting chain is disposed within the adjusting part, and the adjusting part is provided with a sliding groove for the adjusting chain to slide; the sliding groove has a first port and a second port with a narrowing and changing diameter, and the center lines of the first port and the second port are perpendicular to each other; the adjusting member is disposed within the sliding groove near the first port, and the adjusting column passes through the second port and cooperates with one end of the adjusting chain.
[0013] Furthermore, the adjusting chain includes several beads that abut against each other. The first bead of the adjusting chain near the first port engages with the adjusting component, and the last bead of the adjusting chain near the second port engages with the adjusting post.
[0014] Furthermore, the slide includes a first slide, a second slide, and a third slide. The first slide is straight and coaxially arranged with the first port. The third slide is straight and coaxially arranged with the second port. The second slide is bent and connected between the first and third slides. The adjusting component is an internal hexagon set screw. The first slide has an internal thread that matches the internal hexagon set screw.
[0015] Preferably, the beads are made of metal. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the mounting bracket of this utility model installed on the crossbeam.
[0017] Figure 2 This is a schematic diagram of the mounting code structure of this utility model.
[0018] Figure 3 This is a schematic diagram of the internal assembly structure of the mounting code adjustment part of this utility model.
[0019] Figure 4 This is a schematic diagram of the internal assembly structure of the mounting code connection part of this utility model.
[0020] Figure 5 This is a schematic diagram of the mounting bracket top block structure of this utility model.
[0021] Figure 6 This is a schematic diagram of the mounting code connection part of this utility model.
[0022] Figure 7 This is a schematic diagram of the mounting base.
[0023] In the figure, 1-crossbeam, 11-adjusting hole, 2-mounting base, 21-end cap, 22-connecting part, 23-adjusting part, 3-top block, 31-connecting column, 32-limiting column, 33-adjusting column, 34-support part, 35-sleeve part, 36-spring, 4-adjusting component, 5-adjusting chain, 221-first through hole, 222-second through hole, 231-slide groove, 231a-first slide groove, 231b-second slide groove, 231c-third slide groove, 232-first port, 233-second port, 234-internal thread, 321-stop washer. Detailed Implementation
[0024] The present invention will be further described below with reference to specific embodiments.
[0025] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0028] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0029] When installing no-drill curtains, mounting brackets installed at one or both ends of the curtain beam 1 extend from the top block 3 to support the beam 1 on the window frame, avoiding drilling holes in the wall or window frame and reducing installation costs. This utility model provides a no-drill mounting bracket for curtains, which can be installed at one or both ends of the curtain beam 1. (See reference...) Figure 1 .
[0030] See Figures 2 to 4 The mounting bracket includes a mounting base 2 and a top block 3 fitted inside the mounting base 2. When not in use, the elastic element is in its natural state, and the top block 3 extends the longest length beyond the mounting base 2 under the action of elastic force. When installation is required, the top block 3 is pushed inward, compressing the elastic element and generating elastic support force, thus supporting the mounting bracket against the wall. At this time, the adjusting chain 5 provided inside the mounting base 2 is adjusted. The adjusting chain 5 is laid inside the mounting base 2 and can slide along a preset path within the mounting base 2. One end of the adjusting chain 5 cooperates with the top block 3 to lock or unlock the top block 3, and the other end is provided with an adjusting element 4. By adjusting the position of the adjusting element 4, the adjusting chain 5 can slide to lock or unlock the top block 3. At the same time, the adjusting surface of the adjusting element 4 is exposed on the mounting base 2 and located on the plane away from the top block 3 in the length direction of the mounting base 2, and is also exposed on the plane in the length direction of the crossbeam 1. The crossbeam 1 is provided with an adjusting hole 11 to drive the adjusting element 4. With this arrangement, the adjusting element 4 is fully facing the user, making the adjustment operation more convenient.
[0031] With the above structure, during installation, the top block 3 is pushed inward, causing the elastic element to generate elastic support force. The elastic force of the elastic element expands the top block 3, causing it to extend out of the mounting base 2 and abut against the wall. At this time, the adjusting element 4 is used to adjust the adjusting chain 5, causing it to slide and press against the top block 3. The top block 3 is then tightly supported against the wall. The adjusting element 4 can drive the adjusting chain 5 to lock the top block 3, achieving the effect of the top block 3 extending out of the mounting base 2 and tightly locking against the wall. If it is necessary to unlock the top block 3, the adjusting element 4 is adjusted in the opposite direction. At this time, since the adjusting chain 5 is no longer pressing against the top block 3, the top block 3 can be pushed inward into the mounting base 2, completing the unlocking.
[0032] As a further improved embodiment, see [reference]. Figure 3The aforementioned mounting base 2 includes an end cap 21, a connecting part 22, and an adjusting part 23 connected in sequence. The end cap 21 is closest to the wall or window frame, and the connecting part 22 and the adjusting part 23 are inserted into the interior of the crossbeam 1. (See reference...) Figure 1 , 4 To enable the top block 3 to extend and retract, the end cap 21 is provided with a mounting hole, and a support part 34 is provided at one end of the top block 3. The projected surface of the support part 34 is larger than the opening of the mounting hole, which can prevent the top block 3 from being completely pushed into the mounting base 2. The support part 34 of the top block 3 is connected to the sleeve part 35, which is sleeved on the connecting part 22 of the mounting base 2. The sleeve method facilitates the ejection and insertion of the top block 3.
[0033] As a further improved embodiment, see [reference]. Figure 4 , 5 7. Limiting posts 32 and connecting posts 31 are provided on the inner wall of the support part 34 of the top block 3. The limiting posts 32 and connecting posts 31 are preferably arranged in parallel vertically and are both located on the center line of the support part 34 to ensure uniform force distribution. The extent to which the top block 3 extends beyond the mounting base 2 is mainly determined by the length of the elastic element in its natural state and the limiting post 32. A first through hole 221 and a second through hole 222 are provided on the side of the connecting part 22 away from the end cap 21. When the support part 34 of the top block 3 abuts against the end cap 21 of the mounting base 2, the limiting post 32 passes through the connecting part 22 and then through the first through hole 221. The length of the free end of the limiting post 32 that extends out of the first through hole 221 and the elastic element determine the length of the top block 3 extending beyond the mounting base 2. At the same time, in order to prevent the top block 3 from falling out of the mounting base 2 when it extends out of the mounting base 2, which would cause inconvenience to the curtain installation, a stop pad 321 is provided at the end of the limiting post 32 away from the support part 34. During the process of the top block 3 extending out of the mounting base 2, since the diameter of the stop pad 321 is larger than the diameter of the first through hole 221, the stop pad 321 can finally abut against the outer side of the connecting part 22 away from the end cap 21 without passing through the first through hole 221, thereby limiting the distance of the top block 3 extending out.
[0034] As a further improved embodiment, see [reference]. Figure 4 , 5The connecting post 31 on the support part 34 passes through the connecting part 22. Its length can pass through the second through hole 222 or not. The free end of the connecting post 31 is connected to the adjusting post 33, and the two are interference fit. When the top block 3 is fully pushed into the mounting base 2, if the connecting post 31 does not pass through the second through hole 222, the free end of the adjusting post 33 passes through the second through hole 222. The end face of the free end of the adjusting post 33 abuts against one end of the adjusting chain 5. When the adjusting member 4 adjusts the adjusting chain 5 inward, the force is transmitted to the adjusting post 33. The adjusting chain 5 abuts against the adjusting post 33, and further transmits the force to the connecting post 31, thereby abutting against the connecting post 31. The force is then transmitted from the connecting post 31 to the support part 34, thereby abutting against the top block 3 to complete the locking, so that the support part 34 of the top block 3 is pressed against the wall or window frame. Preferably, the adjusting component 4 is made of metal, such as steel, hard alloy (e.g., tungsten cobalt alloy), aluminum alloy, brass, etc. The adjusting component 4 is a directly stressed part, and using metal can make it less prone to deformation during use and increase its service life. Most preferably, the adjusting component 4 is made of steel, such as carbon steel, stainless steel, alloy steel, etc. Using common steel has a lower cost.
[0035] As a further improved embodiment, see [reference]. Figure 4 , 5 The elastic element uses a common spring 36. One end of the spring 36 abuts against the inner wall of the mounting base 2, and the other end abuts against the inner wall of the top block 3. When no force is applied to the top block 3, the spring 36 extends, pushing the top block 3 out of the mounting base 2. The stop washer 321 abuts against the outer side of the connecting part 22 away from the end cap 21 to prevent the top block 3 from detaching from the mounting base 2. When the top block 3 is pushed into the mounting base 2, the spring 36 is further compressed. Generally, when using no-drill mounting brackets to install curtains, the top block 3 needs to be pushed into the mounting base 2 partially or even completely so that the spring 36 is compressed to provide elastic support, thereby elastically supporting the curtain on the window frame to complete the pre-positioned installation.
[0036] As a further improved embodiment, see [reference]. Figure 4 , 5 The adjusting chain 5 is a flexible chain capable of transmitting force, composed of several interlocking beads. These beads can be independent but interlocking through rolling or sliding, or they can be connected by a string. The beads are preferably round, adaptable to non-linear movement within the adjusting section 23. The beads are made of metal, such as steel, hard alloys (e.g., tungsten-cobalt alloy), aluminum alloy, or brass. As the beads are directly subjected to force, using metal helps prevent deformation during use and increases their lifespan. Preferably, the beads are made of steel, such as carbon steel, stainless steel, or alloy steel, as common steels are less expensive.
[0037] Preferred options, please refer to Figures 3 to 6The adjusting part 23 is provided with a sliding groove 231 for the adjusting chain 5 to slide. The sliding groove 231 has a first port 232 and a second port 233. Both the first port 232 and the second port 233 are set with a narrowing and changing diameter. The center lines of the first port 232 and the second port 233 are perpendicular to each other. The adjusting member 4 is located in the sliding groove 231 near the first port 232. When the top block 3 is pushed into the mounting base 2, the adjusting post 33 can pass through the second port 233 and cooperate with one end of the adjusting chain 5. The first bead of the adjusting chain 5 cooperates with the adjusting member 4 near the first port 232, and the last bead of the adjusting chain 5 cooperates with the adjusting post 33 near the second port 233. The sliding groove 231 includes a first section sliding groove 231a, a second section sliding groove 231b, and a third section sliding groove 231c. The first section sliding groove 231a is straight and is perpendicular to the first port 232. The first port 232 is coaxially arranged. The third slide 231c is straight and coaxially arranged with the second port 233. The second slide 231b is bent and connected between the first slide 231a and the third slide 231c. Through the multi-segmented and curved design of the slide 231, the center lines of the first port 232 and the second port 233 are perpendicular to each other. This allows the force of the adjusting member 4 to be changed by 90° and act on the adjusting column 33. That is, the adjusting member 4 can be placed on the side facing the user for easy use and installation. The first port 232 and the second port 233 are narrowed and their diameters are reduced so that the diameter of the port is slightly smaller than the cross-sectional diameter of the slide 231 body. This prevents the adjusting member 4 and the adjusting chain 5 from slipping off the first port 232 or the second port 233. To facilitate locking and enable the adjusting component 4 to drive the adjusting chain 5, the adjusting component 4 and the slide groove 231 are threaded together. The adjusting component 4 is an internal hexagon set screw, and the first section of the slide groove 231a has an internal thread 234 that matches the internal hexagon set screw. When the adjusting component 4 is adjusted to the appropriate position, since the thread is not easily loosened by axial force, the adjusting component 4 can lock the adjusting chain 5, achieving the effect of locking the top block 3. To facilitate the assembly of the adjusting component 4 and the adjusting chain 5, the adjusting part 23 adopts a structure in which the upper and lower shells can be detachably covered.
[0038] During installation, the top block 3, under the elastic force of the spring 36, presses against the wall to hold the curtain in place on the window frame, completing the pre-positioning installation. Then, using a hex wrench, the internal hexagonal set screw is screwed inward along the internal thread 234 of the first slide groove 231a to push the first bead of the adjusting chain 5. The first bead pushes the next bead in turn, moving along the slide groove 231 towards the second port 233, until the last bead of the adjusting chain 5 is pressed against the adjusting post 33. The adjusting post 33 then presses against the connecting post 31, thereby pressing against the top block 3 and completing the locking installation. During disassembly, the internal hexagonal set screw is screwed outward along the internal thread 234 of the first slide groove 231a using a hex wrench to loosen the first bead of the adjusting chain 5, allowing the top block 3 to be pushed into the mounting base 2, completing the unlocking. The overall structure is simple and easy to operate.
[0039] Unless otherwise specified, the materials, reagents, and experimental equipment involved in this embodiment of the utility model are all commercially available products in the field of doors and windows.
[0040] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make improvements and modifications without departing from the core technology of this utility model, and such improvements and modifications should also fall within the patent protection scope of this utility model. Any changes within the meaning and scope equivalent to the claims of this utility model should be considered as included within the scope of the claims.
Claims
1. A punchless mounting code for a window covering, characterized in that, The device includes a mounting base and a top block that extends out of the mounting base; the mounting base is provided with an adjusting chain for locking or unlocking the top block, one end of the adjusting chain engages with the top block, and the other end is provided with an adjusting element, the adjusting surface of the adjusting element is exposed on the mounting base and located on a plane away from the top block in the length direction of the mounting base; the top block is provided with an elastic element for providing elastic support to the top block.
2. A punchless mounting code for a window treatment as defined in claim 1, wherein, The mounting base includes an end cap, a connecting part, and an adjusting part connected in sequence. The end cap is provided with a mounting hole for the top block to extend out. One end of the top block abuts against the wall surface, and the other end can extend into the connecting part.
3. A punch-hole free mounting code for a window covering as defined in claim 2, wherein, The top block includes a support part and a sleeve part that are connected to each other. The sleeve part is sleeved on the connecting part. A limiting post and a connecting post are provided on the inner wall of the support part. A first through hole and a second through hole are provided on the side of the connecting part away from the end cover. The limiting post can pass through the connecting part and the first through hole. The connecting post can be inserted into the connecting part.
4. A punch-hole free mounting code for a window covering as defined in claim 3, wherein, A stop washer is provided at the end of the limiting post away from the support.
5. The punchless mounting code for a window treatment of claim 3, wherein, The top block includes an adjusting column, one end of which is tightly connected to the connecting column, and the free end of which is engaged with one end of the adjusting chain.
6. The hole punch free mounting code for a window treatment of claim 1, wherein, The elastic element is a spring, with one end of the spring abutting against the inner wall of the mounting base and the other end abutting against the inner wall of the top block.
7. The punchless mounting code for a window treatment of claim 5, wherein, The adjusting chain is disposed within the adjusting part, and the adjusting part is provided with a sliding groove for the adjusting chain to slide; the sliding groove has a first port and a second port with a narrowing and changing diameter, and the center lines of the first port and the second port are perpendicular to each other; the adjusting member is disposed within the sliding groove near the first port, and the adjusting post passes through the second port and cooperates with one end of the adjusting chain.
8. A punchless mounting code for a window treatment as defined in claim 7, wherein, The adjusting chain includes several beads that abut against each other. The first bead of the adjusting chain near the first port engages with the adjusting element, and the last bead of the adjusting chain near the second port engages with the adjusting post.
9. The hole punch free mounting code for a window treatment of claim 7, wherein, The slide includes a first slide, a second slide, and a third slide. The first slide is straight and coaxial with the first port. The third slide is straight and coaxial with the second port. The second slide is bent and connected between the first and third slides. The adjusting component is an internal hexagon set screw. The first slide has an internal thread that matches the internal hexagon set screw.
10. The punchless mounting code for a window treatment of claim 8, wherein, The adjusting column is made of metal, and the beads are made of metal.