Curtain lower beam and curtain
By installing a track body and an obstacle detection device in the lower beam of the electric curtain, and using elastic elements to control the reverse rotation of the drive motor, the problems of inconvenience in operation and fabric damage when the electric curtain encounters obstacles during descent are solved, and the effect of automatically avoiding obstacles is achieved.
Patent Information
- Application Number
- CN202520390356.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-06
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-03-06
AI Technical Summary
Existing electric curtains require manual intervention to stop descending when encountering obstacles, which is inconvenient and can easily damage the curtain fabric or cause wrinkles.
A curtain bottom beam was designed, which includes a track body and an obstacle detection device. After the elastic element comes into contact with the obstacle, it controls the drive motor to reverse, so that the curtain fabric rises to avoid the obstacle and avoids manual intervention.
The electric curtains automatically stop descending when they encounter obstacles, preventing damage or wrinkles to the fabric and improving ease of use.
Smart Images
Figure CN223867921U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electric curtain technology, specifically to a curtain bottom beam and a curtain. Background Technology
[0002] Compared to traditional left-right opening curtains, this electric curtain can use the fabric winding mechanism to drive the entire curtain fabric up and down, making it suitable for use in offices, office buildings, banks, schools, and other places, or for windproof windows.
[0003] When motorized curtains descend, they may encounter obstacles, causing the curtain fabric to continue descending until it reaches the preset height and stops. To facilitate the descent of motorized curtains, it is necessary to manually remove the obstacles or manually stop the descent.
[0004] However, in the relevant electric curtain technology, the electric curtain needs to be stopped manually, which is inconvenient to use. Moreover, when the electric curtain is descending, obstacles can easily damage the curtain fabric, and the curtain fabric is also prone to wrinkles. Utility Model Content
[0005] In view of the above-mentioned defects in the prior art, the present invention provides a curtain bottom beam and curtain to solve at least one of the above-mentioned technical defects in the prior art. When the curtain encounters an obstacle while descending, it is no longer necessary to manually stop the curtain from descending, and it can also prevent the curtain fabric from being damaged or wrinkled.
[0006] The second aspect of this utility model provides a curtain.
[0007] To achieve the purpose of this utility model, the present utility model provides a curtain bottom beam, comprising:
[0008] The track body is provided with a fixing groove and a receiving groove, and the fixing groove is fixedly connected to the curtain fabric;
[0009] An obstacle detection device is disposed in the receiving slot, and the obstacle detection device is electrically connected to the drive motor.
[0010] The obstacle detection device includes an elastic element, which is adapted to cause the drive motor to reverse after being pressed against an obstacle.
[0011] Preferably, the obstruction detection device is further provided with a detection groove, and the two side walls of the receiving groove are provided with detection rails, and the detection groove matches the detection rails.
[0012] Preferably, it further includes a lower cover, which is slidably connected to the receiving groove along the depth direction of the receiving groove, and the elastic member abuts against the lower cover.
[0013] Preferably, multiple obstruction detection devices are provided.
[0014] Preferably, the elastic element includes a first elastic element and a second elastic element, and the obstacle detection device further includes a first button and a second button.
[0015] The first elastic element is configured to cooperate with the first button. When the first elastic element is compressed, the first button is activated.
[0016] The second elastic element is configured to cooperate with the second button. When the second elastic element is compressed, the second button is activated.
[0017] Preferably, the elastic element further includes a third elastic element, and the obstruction detection device further includes a third button.
[0018] Along the width direction of the lower cover, the first elastic element and the second elastic element are symmetrically arranged, and the third elastic element is located between the first elastic element and the second elastic element.
[0019] The third elastic element is configured to cooperate with the third button. When the third elastic element is compressed, the third button is activated.
[0020] Preferably, after the drive motor reverses, it stops rotating only after the elastic element separates from the obstacle.
[0021] Preferably, the obstruction detection device controls the drive motor to reverse for 3 to 5 seconds.
[0022] Preferably, the lower cover has two symmetrical sliding grooves along its width, and the track body also has two symmetrical sliding rails.
[0023] The sliding rail is recessed within the receiving groove, and the sliding groove matches the sliding rail.
[0024] The second aspect of this utility model provides a curtain, including curtain fabric, a drive motor, and the aforementioned curtain bottom beam.
[0025] The drive motor is adapted to drive the curtain fabric to roll or unfold, and the curtain bottom rail is located at the lower end of the curtain fabric.
[0026] The lower beam of the curtain is electrically connected to the drive motor.
[0027] The beneficial effects of this utility model are as follows: The curtain lower beam provided by this utility model is equipped with a track body having a fixing groove and a receiving groove, and the fixing groove is fixedly connected to the curtain fabric. An obstacle detection device with an elastic element is set in the receiving groove. Moreover, the obstacle detection device is electrically connected to the drive motor. When the elastic element abuts against the obstacle and is pressed, the drive motor receives the electrical signal from the obstacle detection device and reverses, thereby causing the curtain fabric to rise vertically and avoid the obstacle. Thus, when the curtain encounters an obstacle while descending, there is no need to manually stop the curtain from descending. It can also prevent the curtain fabric from being damaged or wrinkled, making it more convenient to use and operate.
[0028] The curtain provided by this utility model, because it includes the aforementioned curtain bottom rail, inevitably possesses all the advantages of that bottom rail. That is, when the curtain encounters an obstacle during descent, manual intervention is no longer required to stop the curtain from falling, and damage or wrinkles to the curtain fabric are avoided, making it more convenient to use. Attached Figure Description
[0029] The above and other objects, features, and advantages of this utility model will become clearer through a more detailed description of the preferred embodiments shown in the accompanying drawings. The same reference numerals indicate the same parts throughout the drawings, and the drawings are not intentionally drawn to scale with actual dimensions; the focus is on illustrating the gist of this application.
[0030] Figure 1 A schematic diagram of the overall structure of the curtain bottom rail and curtain fabric provided in an embodiment of this utility model;
[0031] Figure 2 This is a schematic diagram of the curtain lower beam structure provided in an embodiment of the present utility model;
[0032] Figure 3 for Figure 2 The front view;
[0033] Figure 4 A schematic diagram of the structure of the main body of the curtain lower rail and the lower cover provided in this embodiment of the utility model;
[0034] Figure 5 This is a schematic diagram of the obstruction detection device in the lower beam of the curtain provided in an embodiment of the present invention.
[0035] In the picture:
[0036] 1. Curtain fabric;
[0037] 100. Track body; 110. Fixing groove; 120. Receiving groove; 121. Detection slide rail;
[0038] 200. Obstacle detection device; 210. Elastic element; 211. First elastic element; 212. Second elastic element; 213. Third elastic element; 220. Detection groove; 230. First button; 240. Second button; 250. Third button;
[0039] 300, bottom cover; 310, sliding groove; 320, sliding rail. Detailed Implementation
[0040] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be given below with reference to the accompanying drawings.
[0041] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to and integrated with the other component, or there may be an intervening component present. The terms "mounted," "one end," "the other end," and similar expressions used in this document are for illustrative purposes only.
[0042] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this applies. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0043] The following is combined Figures 1 to 5 The embodiments of this utility model will be described below. It should be understood that the following description is merely an illustrative embodiment of this utility model and does not constitute any limitation on this utility model.
[0044] To more clearly illustrate the orientation of the curtain bottom beam and various components in the curtain provided in this embodiment of the invention, combined with... Figures 1 to 5 Establish a three-dimensional coordinate system XYZ, with the X-axis set as the length direction, the Y-axis as the width direction, and the Z-axis as the vertical direction.
[0045] The curtain includes curtain fabric 1 and a drive motor. The drive motor can drive the curtain fabric 1 to roll up and down, or drive the curtain fabric 1 to unfold and descend, so as to open or close the curtain.
[0046] This utility model provides a curtain bottom rail, which can be installed at the lower end of the curtain fabric 1 and can straighten the curtain fabric 1 under the action of gravity. The curtain bottom rail includes a track body 100 and an obstacle detection device 200.
[0047] Among them, the track body 100 along its own length direction (e.g. Figure 2The X-axis of the track is provided with a fixing groove 110 and a receiving groove 120, and the fixing groove 110 is fixedly connected to the curtain fabric 1; the track body 100 can be rolled or unfolded along the vertical direction (e.g., the X-axis of the track) Figure 1 The Z-axis in the graph rises or falls.
[0048] An obstacle detection device 200 is disposed in the receiving slot 120. The obstacle detection device 200 is electrically connected to the drive motor and can transmit the signal of the obstacle detection device 200 to the drive motor to control the state of the drive motor. In this embodiment, when the drive motor rotates forward, the curtain fabric 1 moves along the vertical direction (e.g., ...). Figure 1 When the drive motor descends along the Z-axis (as shown in the figure), the curtain fabric 1 unfolds and the curtain opens; when the drive motor reverses, the curtain fabric 1 rises along the vertical direction (as shown by the Z-axis), the curtain fabric 1 rolls up, and the curtain closes.
[0049] The obstacle detection device 200 includes an elastic element 210. After the elastic element 210 comes into contact with the obstacle and is pressed, it causes the drive motor to reverse and the curtain fabric 1 to rise in the vertical direction, thereby allowing the curtain to avoid the obstacle.
[0050] It is understood that the curtain lower beam provided in the embodiment of this utility model is provided by setting a track body 100 with a fixing groove 110 and a receiving groove 120, fixing the fixing groove 110 to the curtain fabric 1, and setting an obstacle detection device 200 with an elastic element 210 in the receiving groove 120. Moreover, the obstacle detection device 200 is electrically connected to the drive motor. When the elastic element 210 comes into contact with the obstacle and is pressed, the drive motor receives the electrical signal from the obstacle detection device 200 and reverses, thereby causing the curtain fabric 1 to rise in the vertical direction and avoid the obstacle. Thus, when the curtain encounters an obstacle while descending, it is no longer necessary to manually stop the curtain from descending, and the curtain fabric 1 can also be prevented from being damaged or wrinkled, making it more convenient to use and operate.
[0051] Combination Figures 2 to 4 In some embodiments of this utility model, an obstruction detection device 200 is further provided with a detection groove 220, and detection slide rails 121 are provided on both side walls of the receiving groove 120 (i.e., detection slide rails 121 are provided on both side walls of the track body 100, and the detection slide rails 121 face inwards into the receiving groove 120). The detection groove 220 matches the detection slide rails 121, so that the obstruction detection device 200 can move along the length direction of the receiving groove 120 within the receiving groove 120 (e.g., ...). Figure 2 The sliding of the X-axis facilitates the installation and disassembly of the obstacle detection device 200.
[0052] Specifically, in combination Figures 2 to 4 In some embodiments of this utility model, the obstruction detection device 200 further includes a lower cover 300, which extends along the depth direction of the receiving groove 120 (e.g., Figure 4The Z-axis is slidably connected to the receiving groove 120, and the elastic element 210 abuts against the lower cover 300.
[0053] When the lower cover 300 comes into contact with an obstacle and is pressed, the lower cover 300 will squeeze the elastic element 210, and the obstacle detection device 200 will send an electrical signal to control the drive motor to reverse so that the curtain fabric 1 rises in the vertical direction, thereby avoiding the obstacle.
[0054] Furthermore, in order to expand the detection range of the lower curtain beam for obstacles, in some embodiments of this utility model, multiple obstruction detection devices can be provided and evenly distributed along the length direction in the receiving groove 120, so that no matter where the obstacle abuts against the lower cover 300, the pressure of the lower cover 300 can be transmitted to the obstruction detection device 200, thereby increasing the detection range.
[0055] Combination Figures 3 to 5 In order to simplify the structure of the obstacle detection device 200, in some embodiments of the present invention, the elastic element 210 includes a first elastic element 211 and a second elastic element 212, and the obstacle detection device 200 also includes a first button 230 and a second button 240.
[0056] The first elastic element 211 is configured to cooperate with the first button 230. When the first elastic element 211 is pressed, the first button 230 is activated.
[0057] The second elastic element 212 is configured to cooperate with the second button 240. When the second elastic element 212 is pressed, the second button 240 is activated.
[0058] In addition, in some embodiments of this utility model, the elastic element 210 further includes a third elastic element 213, and the obstruction detection device 200 further includes a third button 250.
[0059] Along the 300 width direction of the lower cover (e.g.) Figure 4 In the Y-axis), the first elastic element 211 and the second elastic element 212 are symmetrically arranged, and the third elastic element 213 is located between the first elastic element 211 and the second elastic element 212. The force on the elastic element 210 is more uniform. When any part of the cover 300 comes into contact with an obstacle and receives pressure, the elastic element 210 can receive the pressure better, thereby further improving the detection accuracy.
[0060] The third elastic element 213 is configured to work in conjunction with the third button 250. When the third elastic element 213 is pressed, the third button 250 will be activated.
[0061] In some embodiments of this invention, the obstruction detection device 200 controls the drive motor to reverse for 3 to 5 seconds. This allows the curtain fabric 1 to rise a certain distance vertically, effectively avoiding obstacles and further preventing damage to the curtain fabric 1 and preventing wrinkles.
[0062] In some embodiments of this utility model, the lower cover 300 is along its own width direction (e.g. Figure 4 The Y-axis of the track is provided with two symmetrical sliding grooves 310, and the track body 100 is also provided with two symmetrical sliding rails 320.
[0063] The sliding rail 320 is recessed into the receiving groove 120, and the sliding groove 310 matches the sliding rail 320, so that the lower cover 300 can slide vertically and be connected to the receiving groove 120 while preventing the lower cover 300 from sliding out, thus ensuring the safety of the structure.
[0064] Combination Figures 1 to 5 In an embodiment of this utility model, a curtain is also provided, which includes curtain fabric 1, a drive motor and the aforementioned curtain bottom beam.
[0065] The drive motor can drive the curtain fabric 1 to roll or unfold, and the curtain bottom rail is set at the lower end of the curtain fabric 1.
[0066] The curtain bottom beam is electrically connected to the drive motor. The drive motor can be a tubular motor, and the curtain bottom beam and the drive motor can be connected via RF433 radio communication.
[0067] It is understood that the curtain provided in the embodiments of this utility model, since it includes the aforementioned curtain bottom beam, necessarily possesses all the advantages of this component. That is, the curtain also eliminates the need for manual intervention when it encounters an obstacle during descent, and it also prevents damage or wrinkling of the curtain fabric, making it more convenient to use.
[0068] In this specification, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" of 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.
[0069] In the description of this specification, the use of terms such as "preferred embodiment," "another embodiment," "some embodiments," "other embodiments," or "specific example," etc., refers to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0070] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.
Claims
1. A curtain bottom rail, the curtain comprising curtain fabric and a drive motor, the curtain bottom rail being disposed at the lower end of the curtain fabric, characterized in that, The lower curtain beam includes: The track body is provided with a fixing groove and a receiving groove, and the fixing groove is fixedly connected to the curtain fabric; An obstacle detection device is disposed in the receiving slot, and the obstacle detection device is electrically connected to the drive motor. The obstacle detection device includes an elastic element, which is adapted to cause the drive motor to reverse after being pressed against an obstacle.
2. The curtain bottom beam as described in claim 1, characterized in that, The obstruction detection device is further provided with a detection chute, and detection slide rails are provided on both sides of the receiving chute. The detection chute matches the detection slide rails.
3. The curtain bottom rail as described in claim 1, characterized in that, It also includes a lower cover, which is slidably connected to the receiving groove along the depth direction of the receiving groove, and the elastic member abuts against the lower cover.
4. The curtain bottom rail as described in claim 3, characterized in that, Multiple obstruction detection devices are provided.
5. The curtain bottom rail as described in claim 3, characterized in that, The elastic element includes a first elastic element and a second elastic element, and the obstacle detection device further includes a first button and a second button. The first elastic element is configured to cooperate with the first button. When the first elastic element is compressed, the first button is activated. The second elastic element is configured to cooperate with the second button. When the second elastic element is compressed, the second button is activated.
6. The curtain bottom rail as described in claim 5, characterized in that, The elastic element further includes a third elastic element, and the obstruction detection device further includes a third button. Along the width direction of the lower cover, the first elastic element and the second elastic element are symmetrically arranged, and the third elastic element is located between the first elastic element and the second elastic element. The third elastic element is configured to cooperate with the third button. When the third elastic element is compressed, the third button is activated.
7. The curtain bottom beam as described in claim 1, characterized in that, After the drive motor reverses, it stops rotating only after the elastic element separates from the obstacle.
8. The curtain bottom rail as described in claim 7, characterized in that, The obstruction detection device controls the drive motor to reverse for 3 to 5 seconds.
9. The curtain bottom rail as described in claim 3, characterized in that, The lower cover has two symmetrical sliding grooves along its width, and the track body also has two symmetrical sliding rails. The sliding rail is recessed within the receiving groove, and the sliding groove matches the sliding rail.
10. A curtain, characterized in that, Includes curtain fabric, a drive motor, and a curtain bottom beam as described in any one of claims 1 to 9. The drive motor is adapted to drive the curtain fabric to roll or unfold, and the curtain bottom rail is located at the lower end of the curtain fabric. The lower beam of the curtain is electrically connected to the drive motor.