Device for testing drapability of shade curtain fabric
By designing a testing device that includes a test platform, a support plate, a parallel light tube, and a grid paper, the drape coefficient F is calculated, solving the subjective problem of drape testing for blackout curtain fabrics and achieving accurate quantitative evaluation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-07
- Publication Date
- 2026-03-24
AI Technical Summary
Existing technologies for testing the drape of blackout curtain fabrics are highly subjective and lack accurate quantitative indicators, leading to inaccurate evaluation results.
A testing device was designed, comprising a test platform, a support plate, a parallel light tube, grid paper, a support rod, and a placement plate. By calculating the sag coefficient F = (projected area / original sample area) × 100%, an objective quantitative indicator is provided to ensure the accuracy of the test results.
It enables an objective evaluation of the drape of blackout curtain fabrics, provides quantitative indicators, improves the accuracy of test results, and facilitates comparison of the drape differences of blackout curtain fabrics made of different materials.
Smart Images

Figure CN224035259U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of fabric, concretely relates to a testing device for the drape of light-shielding curtain fabric. BACKGROUND
[0002] The light-shielding curtain is a traditional curtain with non-transparent or thickened fabric, so as to realize the basic control of light and achieve the light-shielding effect.
[0003] In order to further understand the fabric drape testing device in the prior art, through the retrieval, the patent with the publication number CN220603268U discloses a testing device for the drape of curtain fabric, which comprises a mounting frame, a sleeve roller is arranged at the middle position of the mounting frame, two symmetrically distributed rod grooves are formed in the inner surfaces of the mounting frame, a threaded rod is rotatably connected to the inside of one of the sleeve rollers, a motor is fixed to one side of the top surface of the mounting frame, the top of the threaded rod penetrates through the mounting frame and is fixed to the output end of the motor, a threaded sleeve is threadedly connected to the outer circumferential surface of the threaded rod, two symmetrically distributed connecting plates are arranged on the two sides of the sleeve roller, the surface of one side of the threaded sleeve is fixed to the surface of the adjacent connecting plate, a support block is slidably inserted into the inside of the other rod groove, the surface of one side of the support block is fixed to the surface of the adjacent connecting plate, a penetrating shaft is fixedly inserted into the middle position of the sleeve roller, the surface of one side of the penetrating shaft is rotatably connected to the surface of the adjacent connecting plate, two symmetrically distributed openings are formed in the two sides of the outer circumferential surface of the sleeve roller, an embedded shaft is fixed in the inside of the opening, two symmetrically distributed shaft sleeves are slidably sleeved on the two sides of the outer circumferential surface of the embedded shaft, a movable shaft is rotatably connected to the surface of the shaft sleeve, and a clamping rod in L-shaped arrangement is fixedly sleeved on the outer circumferential surface of the movable shaft.
[0004] Through exploration and analysis, the patent has the following disadvantages in actual use: although the penetrating shaft and the movable shaft are used to apply rubbing force in two directions to the fixed curtain fabric to improve the accuracy of judging the drape of the curtain fabric, the drape is judged by observing whether the fabric can easily recover to its original state after rubbing, which has strong subjectivity, leading to inaccurate judgment results, and specific quantitative indicators cannot be provided, so it is difficult to objectively evaluate the drape of the curtain fabric. UTILITY MODEL CONTENTS
[0005] In view of the technical problem that the existing technology judges the drape by observing whether the fabric can easily recover to its original state after rubbing, which has strong subjectivity, leading to inaccurate judgment results, and specific quantitative indicators cannot be provided, so it is difficult to objectively evaluate the drape of the curtain fabric, the utility model provides a testing device for the drape of light-shielding curtain fabric.
[0006] The utility model discloses a technical scheme adopted by the utility model is: including test platform, two groups of support board are fixedly installed on the test platform, two groups support board fixedly connected with the top plate are installed on, the parallel light pipe is fixedly installed under the top plate, the test platform fixedly connected with the grid paper is installed, the support rod is fixedly installed on the test platform, the support rod fixedly connected with the placing tray is installed on, the placing tray can place the light -proof window curtain sample, two groups of support board all are seted up through -hole, the through -hole all slidingly installed with the installing rod, the one end of installing rod is fixedly installed with the arc baffle, the other end of installing rod is provided with the pull handle.
[0007] Further, the bottom of the arc-shaped baffle is fixedly installed with a supporting plate, and the two supporting plates are matched with the placing tray.
[0008] By adopting the above technical scheme, the light -proof window curtain sample is placed conveniently.
[0009] Further, the pull handle is fixedly connected with a connecting rod on one side, and the connecting rod is rotatably arranged between the installing rod.
[0010] By adopting the above technical scheme, when the pull handle is pulled, the installing rod and the arc-shaped baffle are prevented from rotating.
[0011] Further, a sliding groove is formed in one side of the support plate, an active cavity is formed in the support plate, the sliding groove, the active cavity and the through -hole are communicated, a fixed block is arranged in the active cavity, and the fixed block is fixedly installed on the connecting rod.
[0012] By adopting the above technical scheme, the position of the installing rod and the arc-shaped baffle is fixed.
[0013] Further, a round head groove is formed in one end of the installing rod away from the arc-shaped baffle, an anti -coming -off head is rotatably installed in the round head groove, and the anti -coming -off head is fixedly installed on one side of the fixed block.
[0014] By adopting the above technical scheme, the connecting rod and the installing rod are rotatably connected.
[0015] Further, a limiting groove is formed in the side wall of the through -hole, a limiting block is slidingly installed in the limiting groove, and the limiting block is fixed on the circumferential surface of the installing rod.
[0016] By adopting the above technical scheme, the stability of the installing rod and the arc-shaped baffle when moving is improved.
[0017] The utility model discloses a beneficial effect is: through test bench cooperation support rod, placing table, parallel light pipe and grid paper, utilize the projection area of grid paper to get the shade curtain sample suspension after shading, get the drape coefficient of shade curtain fabric through formula drape coefficient F=(projection area / sample original area) 100%, make the test result more objective, guarantee the accuracy of test result, and the drape of shade curtain fabric is carried out quantitative index to the drape, and the drape difference of shade curtain fabric of different material is convenient to compare, and it is more in line with actual use;
[0018] Through the support plate cooperation installation rod, arc baffle and supporting plate, the shade curtain sample placed on the placing disc is supported and limited, guarantees that the center point of shade curtain sample and placing disc is in the same position, improves shade curtain fabric drape test result, pull handle cooperation connecting rod, fixed block, movable cavity and sliding slot, the installation rod is fixed, avoids the position of arc baffle and supporting plate when placing shade curtain sample to shift, and the shade curtain sample is placed, and the accuracy of test result is further improved. BRIEF DESCRIPTION OF DRAWINGS
[0019] Figure 1 It is the three -dimensional structure schematic diagram of the utility model;
[0020] Figure 2 It is the sectional structure schematic diagram of test bench and support plate in the utility model;
[0021] Figure 3 It is the three -dimensional structure schematic diagram of the utility model in Figure 2 A enlarged view is shown in the figure;
[0022] Figure 4 It is the sectional structure schematic diagram of support plate in the utility model;
[0023] Figure 5 It is the assembly schematic diagram between pull handle and installation rod in the utility model;
[0024] Figure 6 It is the structure schematic diagram of test bench in another state in the utility model.
[0025] Marked in the figure is: 1, test bench;2, support plate;3, top plate;4, grid paper;5, support rod;6, placing disc;7, shade curtain sample;8, parallel light pipe;9, through -hole;10, installation rod;11, arc baffle;12, supporting plate;13, pull handle;14, round head slot;15, anti -drop head;16, connecting rod;17, sliding slot;18, movable cavity;19, fixed block;20, limit slot;21, limit block. DETAILED DESCRIPTION
[0026] In the description of the utility model, it is necessary to explain that the terms "front", "upper", "lower", "left", "right", "vertical", "horizontal" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.
[0027] In the description of the utility model, it should be pointed out that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, and can also be detachably connected, or integrally connected, can be directly connected, or indirectly connected through an intermediate medium, can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0028] The following will be described in detail in combination with the accompanying drawings Figures 1-6 The utility model is further explained.
[0029] In order to solve the problems in the background art, the present application proposes the following technical scheme: including test bench 1, two groups of support plates 2 are fixedly installed on test bench 1, top plates 3 are fixedly connected on the two groups of support plates 2, parallel light pipes 8 are fixedly installed below top plates 3, grid paper 4 is fixedly connected on test bench 1, support rods 5 are fixedly installed on test bench 1, placing discs 6 are fixedly connected on support rods 5, light shade curtain samples 7 can be placed on placing discs 6, through holes 9 are formed on the two groups of support plates 2, mounting rods 10 are slidably installed in through holes 9, arc-shaped baffles 11 are fixedly installed on one end of mounting rods 10, pull handles 13 are arranged on the other end of mounting rods 10.
[0030] The two groups of support plates 2 support the top plate 3, the top plate 3 improves the installation condition of the parallel light pipe 8, the parallel light pipe 8 provides a parallel light source for the test process, the diameter of the placing disc 6 is a standard 120mm, the blackout curtain fabric is cut into a circular blackout curtain sample 7 with a diameter of a standard 240mm, the blackout curtain sample 7 is placed on the placing disc 6, the blackout curtain sample 7 is lowered along the edge of the placing disc 6 due to the self weight, and a stable umbrella shape is formed after a certain time (generally 2-3 minutes), the parallel light emitted by the parallel light pipe 8 is irradiated on the blackout curtain sample 7, and a horizontal projection is formed on the grid paper 4, the projection area is obtained by calculating the number of projection covered grids through the grid paper 4, the formula drape coefficient F=(projection area / sample original area) x 100% is used to obtain the drape coefficient F, the smaller the drape coefficient F obtained is, the better the drape of the blackout curtain is, the installation rod 10 is moved by pushing the pull handle 13, the arc-shaped baffle 11 is moved by the installation rod 10, the two groups of arc-shaped baffles 11 are moved to the vicinity of the placing disc 6, when the blackout curtain sample 7 is placed on the placing disc 6, the two groups of arc-shaped baffles 11 limit the blackout curtain sample 7, so that the center of the blackout curtain sample 7 is completely aligned with the center of the placing disc 6, and the accuracy of the drape test result is ensured, the drape coefficient of the blackout curtain is obtained through the test, so that the result is more objective, the accuracy of the test result is ensured, meanwhile, the drape of the blackout curtain fabric is quantified as an index, so that the drape difference of blackout curtain fabrics of different materials can be compared, and the actual use is more in line with the actual use.
[0031] Further, the bottom of the arc-shaped baffle 11 is fixedly provided with a supporting plate 12, and the two groups of supporting plates 12 are matched with the placing disc 6.
[0032] The two groups of supporting plates 12 cooperate with the placing disc 6 to form a flat circular supporting surface (as shown in the accompanying drawings), and cooperate with the two groups of arc-shaped baffles 11 to facilitate the blackout curtain sample 7 to be placed flat on the placing disc 6, and ensure that the center of the placing disc 6 and the blackout curtain sample 7 are on the same point, which is beneficial to improve the accuracy of the test result. Figure 2 Further, one side of the pull handle 13 is fixedly connected with a connecting rod 16, and the connecting rod 16 is rotatably arranged between the installation rod 10.
[0033] The connecting rod 16 is moved by pushing and pulling the pull handle 13, the installation rod 10 and the arc-shaped baffle 11 are moved by the connecting rod 16, and the rotation arrangement between the connecting rod 16 and the installation rod 10 reduces the deviation of the installation rod 10 and the arc-shaped baffle 11 caused by the rotation of the pull handle 13 during the pushing and pulling process, thereby improving the accuracy of the position of the arc-shaped baffle 11.
[0034]
[0035] Further illustrate that the support plate 2 is provided with a sliding groove 17 on one side, the support plate 2 is provided with a movable cavity 18, the sliding groove 17 is communicated with the movable cavity 18 and the through hole 9, the movable cavity 18 is provided with a fixed block 19, and the fixed block 19 is fixedly installed on the connecting rod 16.
[0036] The sliding groove 17 is horizontally arranged, and the movable cavity 18 is a circular cavity (as shown in the accompanying drawings). Figure 4 After the supporting plate 2 is moved to the position of abutting against the placing disc 6, the connecting rod 16 and the fixed block 19 are driven to rotate by the pull handle 13, the fixed block 19 is rotated to the vertical state (as shown in the accompanying drawings), at this time, the movable cavity 18 limits the fixed block 19, the position of the connecting rod 16 is fixed in the support plate 2, the position of the mounting rod 10 and the arc-shaped baffle 11 is fixed by the connecting rod 16, the position deviation of the arc-shaped baffle 11 and the supporting plate 12 is avoided when the shading curtain sample 7 is placed, the shading curtain sample 7 is conveniently placed, and the accuracy of the test result is improved. Figure 3 Figure 6 After the shading curtain sample 7 is placed, the fixed block 19 is rotated to the horizontal state by rotating the pull handle 13, the movable cavity 18 no longer limits the fixed block 19, the pull handle 13 is pulled, the connecting rod 16 and the fixed block 19 are moved out of the sliding groove 17, and the supporting plate 12 is moved away from the lower side of the shading curtain sample 7 (as shown in the accompanying drawings), the shading curtain sample 7 is automatically hung down under the gravity, and the test is started.
[0037] Further illustrate that the mounting rod 10 is provided with a round head groove 14 on the end away from the arc-shaped baffle 11, a anti-coming-off head 15 is rotatably installed in the round head groove 14, and the anti-coming-off head 15 is fixedly installed on one side of the fixed block 19.
[0038] The rotating connection between the connecting rod 16 and the mounting rod 10 is realized by the round head groove 14 and the anti-coming-off head 15, the situation that the mounting rod 10 is driven to rotate together when the pull handle 13 is rotated is reduced, and the accuracy of the position of the supporting plate 12 is improved.
[0039] Further illustrate that the side wall of the through hole 9 is provided with a limiting groove 20, a limiting block 21 is slidably installed in the limiting groove 20, and the limiting block 21 is fixed on the circumferential surface of the mounting rod 10.
[0040] The limiting block 21 and the limiting groove 20 guide and limit the movement of the mounting rod 10, avoid the situation that the mounting rod 10 is driven to rotate together when the connecting rod 16 is rotated, improve the stability of the mounting rod 10 during the movement, and thus the accuracy of the positions of the arc-shaped baffle 11 and the supporting plate 12 is ensured, and the accuracy of the shading curtain fabric drapability test result is ensured.
[0041] Specifically, referring to the following operation: first, the blackout curtain fabric is cut into a circular blackout curtain sample 7 with a standard diameter of 240 mm, the mounting rod 10 and the arc-shaped baffle 11 are moved by pushing the pull handle 13, the supporting plate 12 is moved to the position abutting against the placing disc 6, then the pull handle 13 is rotated, the fixed block 19 is rotated to the vertical state, the positions of the arc-shaped baffle 11 and the supporting plate 12 are fixed, the two groups of supporting plates 12 cooperate with the placing disc 6 to form a flat circular supporting surface, the blackout curtain sample 7 is placed on the placing disc 6, the two groups of arc-shaped baffles 11 limit the blackout curtain sample 7, so that the center of the blackout curtain sample 7 and the center of the placing disc 6 are on a point, then the pull handle 13 is rotated, the fixed block 19 is rotated to the horizontal state, the supporting plate 12 is pulled away from below the blackout curtain sample 7, the blackout curtain sample 7 is lowered along the edge of the placing disc 6 due to its own weight after losing support, a stable umbrella shape is formed after a certain period of time, the parallel light emitted by the parallel light pipe 8 is irradiated on the blackout curtain sample 7, a horizontal projection is formed on the grid paper 4, the projection area is obtained by calculating the number of projection covered grids through the grid paper 4, the formula drape coefficient F=(projection area / sample original area) x 100% is used, the smaller the drape coefficient F obtained is, the better the drape of the blackout curtain is, and the drape test of the blackout curtain fabric is completed.
[0042] The standard parts used in the utility model can be purchased from the market, the special-shaped parts can be ordered according to the description and the drawings, the specific connection mode of each part adopts the conventional means such as bolts, rivets and welding in the prior art, the machinery, parts and equipment adopt conventional models in the prior art, the circuit connection adopts the conventional connection mode in the prior art, and details are not described herein, and the contents not described in detail in the specification belong to the prior art known to the person skilled in the art.
[0043] Although the embodiments of the utility model have been shown and described, the scope of the utility model is defined by the appended claims and their equivalents for those skilled in the art.
Claims
1. A testing device for the drape of blackout curtain fabric, characterized in that, The test platform (1) includes two sets of support plates (2) fixedly installed on the test platform (1), and a top plate (3) fixedly connected to the two sets of support plates (2). A parallel light tube (8) is fixedly installed under the top plate (3). A grid paper (4) is fixedly connected to the test platform (1). A support rod (5) is fixedly installed on the test platform (1). A placement tray (6) is fixedly connected to the support rod (5). A blackout curtain sample (7) can be placed on the placement tray (6). A through hole (9) is opened on both sets of support plates (2). An installation rod (10) is slidably installed in the through hole (9). An arc-shaped baffle (11) is fixedly installed at one end of the installation rod (10). A handle (13) is provided at the other end of the installation rod (10).
2. The testing device for the drape of blackout curtain fabric according to claim 1, characterized in that, The bottom of the arc-shaped baffle (11) is fixedly installed with a support plate (12), and the two sets of support plates (12) are adapted to the placement tray (6).
3. The testing device for the drape of blackout curtain fabric according to claim 2, characterized in that, A connecting rod (16) is fixedly connected to one side of the handle (13), and the connecting rod (16) is rotatably connected to the mounting rod (10).
4. The testing device for the drape of blackout curtain fabric according to claim 3, characterized in that, A sliding groove (17) is provided on one side of the support plate (2), and a movable cavity (18) is provided in the support plate (2). The sliding groove (17) is connected to the movable cavity (18) and the through hole (9). A fixing block (19) is provided in the movable cavity (18), and the fixing block (19) is fixedly installed on the connecting rod (16).
5. The testing device for the drape of blackout curtain fabric according to claim 4, characterized in that, The mounting rod (10) has a round head groove (14) on one end away from the arc-shaped baffle (11), and an anti-detachment head (15) is rotatably installed in the round head groove (14). The anti-detachment head (15) is fixedly installed on one side of the fixing block (19).
6. The testing device for the drape of blackout curtain fabric according to claim 5, characterized in that, A limiting groove (20) is provided on the side wall of the through hole (9), and a limiting block (21) is slidably installed in the limiting groove (20). The limiting block (21) is fixed on the circumferential surface of the mounting rod (10).
Citation Information
Patent Citations
Device for testing drapability of curtain fabric
CN220603268U