A fixture for testing the shading performance of blinds

Abstract

The present invention belongs to the field of detection jigs, and in particular to a jig for detecting the shading performance of a venetian blind. The following scheme is proposed, which includes a workbench, a bracket, a light board and a placement rack are fixedly installed on the top of the workbench, the placement rack is located between the bracket and the light board, the top of the bracket is slidably connected with a mounting plate, the rear side of the mounting plate is fixedly installed with a motor, the front side of the motor output shaft is fixedly installed with a moving gear, the top of the bracket is fixedly installed with a moving rack, the moving rack is meshed with the moving gear, and the front side of the mounting plate is fixedly installed with an electric push rod. The present invention places the venetian blind on the placement rack, first presses the push rack to control the clamp to fit with the venetian blind, first fixes the venetian blind, then closes the venetian blind and starts the light board, and then starts the motor. The motor can drive the brightness meter to move horizontally on the top of the venetian blind, so as to detect the shading performance of the venetian blind. The operation is simple and easy to use.

Description

Technical Field

[0001] The present invention relates to the technical field of detection jigs, and in particular to a jig for detecting the light-shielding performance of a blind. Background Art

[0002] Venetian blinds are a kind of soft decoration for new homes. They are basically used in new buildings and decoration. Venetian blinds will be tested for light-blocking performance when they are produced.

[0003] However, in the prior art, the shading performance of blinds is usually manually inspected, as the blinds are difficult to fix, the distance between the light source and the shading sheet is unstable, and the labor intensity is high. Therefore, the present invention proposes a blinds shading performance inspection jig to solve the above problems. Summary of the Invention

[0004] Based on the background technology, there are technical problems in the shading performance of blinds. Currently, manual inspection is usually performed, but the blinds are difficult to fix, the distance from the light source to the shading sheet is unstable, and the labor intensity is high. The present invention proposes a fixture for detecting the shading performance of blinds.

[0005] The present invention proposes a fixture for testing the shading performance of a Venetian blind, comprising a workbench, a bracket, a light board, and a placement rack fixedly mounted on the top of the workbench, the placement rack being located between the bracket and the light board, a mounting plate being slidably connected to the top of the bracket, a motor being fixedly mounted on the rear side of the mounting plate, a moving gear being fixedly mounted on the front side of the motor output shaft, a moving rack being fixedly mounted on the top of the bracket, the moving rack being meshed with the moving gear, an electric push rod being fixedly mounted on the front side of the mounting plate, and a luminance meter being fixedly mounted on the bottom of the mounting plate;

[0006] A positioning mechanism and an unlocking mechanism are provided on the front side of the mounting plate, and a control mechanism and a clamping mechanism are provided on the left and right sides of the top of the workbench. The positioning mechanism cooperates with the moving gear and the unlocking mechanism respectively, and the clamping mechanism cooperates with the control mechanism and the placement rack respectively.

[0007] By means of the above mechanism: by placing the blinds on the placement rack, first press the push-button rack to control the clamp to fit the blinds, first fix the blinds, then close the blinds and start the light board, and then start the motor. The motor can drive the brightness meter to move horizontally on the top of the blinds, so that the shading performance of the blinds can be tested. The operation is simple and easy to use.

[0008] Preferably, the positioning mechanism includes two positioning racks of the control frame;

[0009] The control frame is slidably connected to the front side of the mounting plate, the control frame is in sliding contact with the positioning rack, the positioning rack is slidably connected to the front side of the mounting plate, the control frame is fixedly connected to the electric push rod, and blocking grooves are provided on the left and right sides of the control frame.

[0010] Furthermore, after the control frame is pressed downward, the control frame can push the tops of the two positioning racks to slide on the inner side of the control frame, so that the two positioning racks can approach each other to engage with the moving rack, thereby achieving the positioning of the moving gear, the positioning of the mounting plate, and the positioning of the luminance meter, greatly increasing the stability of the luminance meter during use.

[0011] Preferably, the unlocking mechanism includes an unlocking frame, two positioning frames, two return springs and two fixing blocks;

[0012] The unlocking frame is slidably connected to the front side of the control frame, the unlocking frame is in sliding contact with the positioning frame, the positioning frame is slidably connected to the front side of the mounting plate, the positioning frame is fixedly connected to the return spring, the return spring is fixedly connected to the fixed block, and the fixed block is fixedly installed on the front side of the mounting plate.

[0013] Furthermore, when the unlocking frame is driven to move upward, the unlocking frame can contact the two positioning frames, push the two positioning frames away from each other, and disengage the two positioning frames from the control frame, thereby achieving the positioning of the control frame, so that the control frame is unlocked, the control frame can release the positioning rack, and the positioning rack can disengage from the moving gear, thereby achieving the unlocking of the moving gear.

[0014] Preferably, the clamping mechanism includes a pressing frame, a clamp and a fixing frame;

[0015] The fixed frame is fixedly installed on the top of the workbench, the pressing frame is slidably connected to the fixed frame, the clamp is slidably connected to the pressing frame, the clamp is in sliding contact with the placement frame, and positioning grooves are provided on the sides of the two pressing frames close to each other.

[0016] Furthermore, after the push frame is pressed, the push frame can press the clamp to move downward, and the clamp can fit with the blinds on the top of the placement frame to fix the blinds, greatly increasing the stability of the blinds when being tested.

[0017] Preferably, the control mechanism includes a handle, an unlocking gear, an unlocking rack, a fixing rod, a positioning block and a positioning spring;

[0018] The handle is fixedly connected to the unlocking gear, the unlocking gear is rotatably connected to the front side of the pressing frame, the unlocking rack is slidably connected to the front side of the pressing frame, the unlocking rack is meshed with the unlocking gear, the unlocking rack is in sliding contact with the fixed rod, the fixed rod is in sliding contact with the positioning block, the positioning block is slidably connected to the inner side of the pressing frame, the positioning block is fixedly connected to the positioning spring, and the positioning spring is fixedly connected to the pressing frame.

[0019] Furthermore, after the handle is pushed and rotated, the handle can drive the unlocking gear to rotate, and the unlocking gear can drive the unlocking rack to move, so that the unlocking rack can push the fixing rod to move, so that the fixing rod can drive the positioning block to disengage from the fixing frame, thereby unlocking the clamp, and the clamp can release the blinds.

[0020] Preferably, a blocking block is fixedly mounted on one side of the two positioning frames that are close to each other, and the outer side of the blocking block is detachably engaged with the inner wall of the blocking groove.

[0021] Furthermore, after the blocking block is inserted into the inner side of the blocking groove, the blocking block can block the control frame from moving, thereby achieving the positioning of the control frame.

[0022] Preferably, the outer side of the positioning block is detachably engaged with the positioning groove.

[0023] Furthermore, after the positioning block is inserted into the inner side of the positioning groove, the positioning block will prevent the push frame and the clamp from resetting, so that the clamp can be stably fitted with the blinds, greatly increasing the stability of the clamp when in use.

[0024] Preferably, a tension spring is fixedly installed on one side of the two positioning racks away from each other, a fixing plate is fixedly installed on one side of the two tension springs away from each other, and the fixing plate is fixedly installed on the front side of the mounting plate.

[0025] Furthermore, the tension spring is used to reset the positioning rack, so that the tension spring can automatically reset the positioning rack, so that the positioning rack can automatically unlock the moving gear.

[0026] The beneficial effects of the present invention are:

[0027] When the control frame is pressed down, the control frame can push the top of the two positioning racks to slide inside the control frame, so that the two positioning racks are close to each other and mesh with the moving rack, thereby realizing the positioning of the moving gear, the positioning of the mounting plate, and the positioning of the luminance meter, which greatly increases the stability of the luminance meter when in use;

[0028] When the unlocking frame is driven to move upward, the unlocking frame can contact the two positioning frames, and can push the two positioning frames away from each other, so that the two positioning frames can be separated from the control frame, and the positioning of the control frame can be achieved. When the control frame is unlocked, the control frame can release the positioning rack, and the positioning rack can be separated from the moving gear, and the moving gear can be unlocked;

[0029] After the pressing frame is pressed, the pressing frame can press the clamp to move downward, and the clamp can fit with the blinds on the top of the placement frame to fix the blinds, greatly increasing the stability of the blinds during testing;

[0030] When the handle is pushed and rotated, the handle drives the unlocking gear to rotate, and the unlocking gear drives the unlocking rack to move, so that the unlocking rack can push the fixing rod to move, so that the fixing rod can drive the positioning block to disengage from the fixing frame, thereby unlocking the clamp and allowing the clamp to release the blinds;

[0031] The present invention places the blinds on a placement rack, first presses the rack to control the clamp to fit with the blinds, fixes the blinds first, then closes the blinds and starts the light board, and then starts the motor. The motor can drive the brightness meter to move horizontally on the top of the blinds, so as to detect the shading performance of the blinds. The operation is simple and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic diagram of the main structure of a fixture for testing the light-shielding performance of a Venetian blind proposed by the present invention;

[0033] Figure 2 A schematic top view of a structure placement frame of a Venetian blinds shading performance testing fixture proposed in the present invention;

[0034] Figure 3 This is a top view of the structural mounting plate of a fixture for testing the shading performance of Venetian blinds proposed by the present invention;

[0035] Figure 4 A three-dimensional schematic diagram of the structural positioning frame of a blinds shading performance testing fixture proposed by the present invention;

[0036] Figure 5 The structure of the blinds shading performance testing fixture proposed by the present invention is attached. Figure 1 Middle A is an enlarged schematic diagram;

[0037] Figure 6 The structure of the blinds shading performance testing fixture proposed by the present invention is attached. Figure 1 Middle B is an enlarged schematic diagram;

[0038] Figure 7 The structure of the blinds shading performance testing fixture proposed by the present invention is attached. Figure 1 Middle C is an enlarged schematic diagram.

[0039] In the figure: 1. Workbench; 2. Light board; 3. Placement rack; 4. Bracket; 5. Mounting plate; 6. Motor; 7. Moving gear; 8. Electric push rod; 9. Fixed plate; 10. Tension spring; 11. Moving rack; 12. Luminance meter; 13. Press frame; 14. Handle; 15. Unlocking gear; 16. Unlocking rack; 17. Fixing rod; 18. Positioning block; 19. Positioning spring; 20. Clamp; 21. Fixing frame; 22. Control frame; 23. Unlocking frame; 24. Positioning frame; 25. Reset spring; 26. Fixing block; 27. Positioning rack. Implementation Method

[0040] The present invention will be further explained below with reference to specific embodiments.

[0041] refer to Figure 1-7 In this embodiment, a fixture for testing the shading performance of a Venetian blind is proposed, comprising a workbench 1, on the top of which a bracket 4, a light board 2 and a placement rack 3 are fixedly mounted, respectively. The placement rack 3 is located between the bracket 4 and the light board 2. A mounting plate 5 is slidably connected to the top of the bracket 4. A motor 6 is fixedly mounted on the rear side of the mounting plate 5. A moving gear 7 is fixedly mounted on the front side of the output shaft of the motor 6. A moving rack 11 is fixedly mounted on the top of the bracket 4, and the moving rack 11 is meshed with the moving gear 7. An electric push rod 8 is fixedly mounted on the front side of the mounting plate 5. A luminance meter 12 is fixedly mounted on the bottom of the mounting plate 5.

[0042] A positioning mechanism and an unlocking mechanism are provided on the front side of the mounting plate 5, and a control mechanism and a clamping mechanism are provided on the left and right sides of the top of the workbench 1. The positioning mechanism cooperates with the moving gear 7 and the unlocking mechanism respectively, and the clamping mechanism cooperates with the control mechanism and the placement rack 3 respectively.

[0043] By means of the above mechanism: by placing the blinds on the placement rack 3, first pressing the pressing rack 13 to control the clamp 20 to fit with the blinds, first fixing the blinds, then closing the blinds and starting the light board 2, and then starting the motor 6, the motor 6 can drive the brightness meter 12 to move horizontally at the top of the blinds, so that the shading performance of the blinds can be tested. The operation is simple and easy to use.

[0044] In this embodiment, the positioning mechanism includes two positioning racks 27 of the control frame 22;

[0045] The control frame 22 is slidably connected to the front side of the mounting plate 5, and the control frame 22 is in sliding contact with the positioning rack 27. The positioning rack 27 is slidably connected to the front side of the mounting plate 5. The control frame 22 is fixedly connected to the electric push rod 8. Blocking grooves are provided on the left and right sides of the control frame 22. After the control frame 22 is pressed downward, the control frame 22 can push the tops of the two positioning racks 27 to slide on the inner side of the control frame 22, so that the two positioning racks 27 are close to each other to engage with the moving rack 11, thereby realizing the positioning of the moving gear 7, and also realizing the positioning of the mounting plate 5, and thus realizing the positioning of the luminance meter 12, which greatly increases the stability of the luminance meter 12 during use.

[0046] In this embodiment, the unlocking mechanism includes an unlocking frame 23, two positioning frames 24, two return springs 25 and two fixing blocks 26;

[0047] The unlocking frame 23 is slidably connected to the front side of the control frame 22, and the unlocking frame 23 is in sliding contact with the positioning frame 24. The positioning frame 24 is slidably connected to the front side of the mounting plate 5. The positioning frame 24 is fixedly connected to the return spring 25, and the return spring 25 is fixedly connected to the fixed block 26. The fixed block 26 is fixedly installed on the front side of the mounting plate 5. When the unlocking frame 23 is driven to move upward, the unlocking frame 23 can contact the two positioning frames 24, and the two positioning frames 24 can be pushed away from each other, so that the two positioning frames 24 can be disengaged from the control frame 22, thereby realizing the positioning of the control frame 22, so that the control frame 22 is unlocked, and the control frame 22 can release the positioning rack 27, and the positioning rack 27 can be disengaged from the moving gear 7, thereby realizing unlocking the moving gear 7.

[0048] In this embodiment, the clamping mechanism includes a pressing frame 13, a clamp 20 and a fixing frame 21;

[0049] The fixing frame 21 is fixedly installed on the top of the workbench 1, the pressing frame 13 is slidably connected to the fixing frame 21, the clamp 20 is slidably connected to the pressing frame 13, and the clamp 20 is in sliding contact with the placement frame 3. The two pressing frames 13 are close to each other on one side and a positioning groove is provided. After the pressing frame 13 is pressed, the pressing frame 13 can press the clamp 20 to move downward, and the clamp 20 can fit with the blinds on the top of the placement frame 3 to fix the blinds, thereby greatly increasing the stability of the blinds when being inspected.

[0050] In this embodiment, the control mechanism includes a handle 14, an unlocking gear 15, an unlocking rack 16, a fixing rod 17, a positioning block 18 and a positioning spring 19;

[0051] The handle 14 is fixedly connected to the unlocking gear 15, and the unlocking gear 15 is rotatably connected to the front side of the pressing frame 13, and the unlocking rack 16 is slidably connected to the front side of the pressing frame 13. The unlocking rack 16 is meshed with the unlocking gear 15, and the unlocking rack 16 is in sliding contact with the fixing rod 17, and the fixing rod 17 is in sliding contact with the positioning block 18. The positioning block 18 is slidably connected to the inner side of the pressing frame 13, and the positioning block 18 is fixedly connected to the positioning spring 19. The positioning spring 19 is fixedly connected to the pressing frame 13. After the handle 14 is pushed and rotated, the handle 14 can drive the unlocking gear 15 to rotate, and the unlocking gear 15 can drive the unlocking rack 16 to move, so that the unlocking rack 16 can push the fixing rod 17 to move, so that the fixing rod 17 can drive the positioning block 18 to disengage from the fixing frame 21, thereby unlocking the clamp 20, and the clamp 20 can release the blinds.

[0052] In this embodiment, a blocking block is fixedly installed on the side where the two positioning frames 24 are close to each other. The outer side of the blocking block can be detachably engaged with the inner wall of the blocking groove. After the blocking block is inserted into the inner side of the blocking groove, the blocking block can prevent the control frame 22 from moving, thereby realizing the positioning of the control frame 22.

[0053] In this embodiment, the outer side of the positioning block 18 is detachably connected to the positioning groove. After the positioning block 18 is inserted into the inner side of the positioning groove, the positioning block 18 will prevent the push frame 13 and the clamp 20 from resetting, so that the clamp 20 can be stably fitted with the blinds, greatly increasing the stability of the clamp 20 during use.

[0054] In this embodiment, a tension spring 10 is fixedly installed on the side of the two positioning racks 27 away from each other, and a fixing plate 9 is fixedly installed on the side of the two tension springs 10 away from each other. The fixing plate 9 is fixedly installed on the front side of the mounting plate 5.

[0055] Furthermore, the tension spring 10 is used to reset the positioning rack 27 , so that the tension spring 10 can automatically reset the positioning rack 27 , so that the positioning rack 27 can automatically unlock the moving gear 7 .

[0056] Working principle: When it is necessary to test the light-shielding property of the blinds, first place the blinds on the placement rack 3, and then press the push rack 13. After the push rack 13 is pressed, the push rack 13 can press the clamp 20 to move downward, and the clamp 20 can fit with the blinds on the top of the placement rack 3, thereby fixing the blinds and greatly increasing the stability of the blinds when being tested. At this time, the positioning block 18 will enter the inner side of the positioning groove. After the positioning block 18 is inserted into the inner side of the positioning groove, the positioning block 18 will prevent the push rack 13 and the clamp 20 from resetting, so that the clamp 20 can fit stably with the blinds, greatly increasing the stability of the clamp 20 when in use. At this time, the electric push rod 8 is started again. The electric push rod 8 retracts upward, and the electric push rod 8 will first drive the unlocking frame 23 to slide upward on the top of the control frame 22 and then drive the control frame 22 to move through the unlocking frame 23. When the unlocking frame 23 is driven to move upward, the unlocking frame 23 can contact the two positioning frames 24, and the two positioning frames 24 can be pushed away from each other, so that the two positioning frames 24 can be disengaged from the control frame 22, thereby positioning the control frame 22, so that the control frame 22 is unlocked, and the control frame 22 can release the positioning rack 27, and the positioning rack 27 can be disengaged from the moving gear 7, thereby unlocking the moving gear 7. At this time, the motor 6 is started again, and the motor 6 drives the moving gear 7 to rotate, and the moving gear 7 can be moved by the moving rack 11 drives the mounting plate 5 and the luminance meter 12 to move, and then starts the light board 2 on the top of the workbench 1, the light board 2 can emit light, and the luminance meter 12 moves on the top of the blinds to detect the shading performance of the blinds. There is no need to move the luminance meter 12. When the luminance meter 12 needs to be positioned, it is only necessary to start the electric push rod 8 again to extend the electric push rod 8 downward. The electric push rod 8 can push the unlocking frame 23 and the control frame 22 to move downward. After the control frame 22 is pressed downward, the control frame 22 can push the tops of the two positioning racks 27 to slide on the inner side of the control frame 22, so that the two positioning racks 27 can be close to each other to engage with the moving rack 11, so that the moving rack can be positioned. The positioning of the wheel 7 can also realize the positioning of the mounting plate 5, and thus the positioning of the luminance meter 12, which greatly increases the stability of the luminance meter 12 during use. The luminance meter 12 can stably detect the blinds in the current position. When the blinds detection is completed and the blinds need to be removed, it is only necessary to push the handle 14 on the pressing frame 13. After the handle 14 is pushed and rotated, the handle 14 can drive the unlocking gear 15 to rotate, and the unlocking gear 15 can drive the unlocking rack 16 to move, so that the unlocking rack 16 can push the fixing rod 17 to move, so that the fixing rod 17 can drive the positioning block 18 to disengage from the fixing frame 21, thereby unlocking the clamp 20, and the clamp 20 can release the blinds.

[0057] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A fixture for testing the shading performance of a blind, comprising a workbench (1), characterized in that: The top of the workbench (1) is fixedly mounted with a bracket (4), a light board (2) and a placement rack (3), the placement rack (3) is located between the bracket (4) and the light board (2), the top of the bracket (4) is slidably connected with a mounting plate (5), the rear side of the mounting plate (5) is fixedly mounted with a motor (6), the front side of the output shaft of the motor (6) is fixedly mounted with a moving gear (7), the top of the bracket (4) is fixedly mounted with a moving rack (11), the moving rack (11) is meshed with the moving gear (7), the front side of the mounting plate (5) is fixedly mounted with an electric push rod (8), and the bottom of the mounting plate (5) is fixedly mounted with a luminance meter (12); A positioning mechanism and an unlocking mechanism are provided on the front side of the mounting plate (5), and a control mechanism and a clamping mechanism are provided on the left and right sides of the top of the workbench (1). The positioning mechanism cooperates with the moving gear (7) and the unlocking mechanism respectively, and the clamping mechanism cooperates with the control mechanism and the placement rack (3) respectively. The positioning mechanism includes a control frame (22) and two positioning racks (27); The control frame (22) is slidably connected to the front side of the mounting plate (5), the control frame (22) is in sliding contact with the positioning rack (27), the positioning rack (27) is slidably connected to the front side of the mounting plate (5), the control frame (22) is fixedly connected to the electric push rod (8), and blocking grooves are provided on the left and right sides of the control frame (22); The unlocking mechanism comprises an unlocking frame (23), two positioning frames (24), two return springs (25) and two fixing blocks (26); The unlocking frame (23) is slidably connected to the front side of the control frame (22), the unlocking frame (23) is in sliding contact with the positioning frame (24), the positioning frame (24) is slidably connected to the front side of the mounting plate (5), the positioning frame (24) is fixedly connected to the return spring (25), the return spring (25) is fixedly connected to the fixing block (26), and the fixing block (26) is fixedly mounted on the front side of the mounting plate (5); The clamping mechanism comprises a pressing frame (13), a clamp (20) and a fixing frame (21); The fixing frame (21) is fixedly mounted on the top of the workbench (1), the pressing frame (13) is slidably connected to the fixing frame (21), the clamp (20) is slidably connected to the pressing frame (13), the clamp (20) is in sliding contact with the placement frame (3), and a positioning groove is provided on the side where the two pressing frames (13) are close to each other; The control mechanism comprises a handle (14), an unlocking gear (15), an unlocking rack (16), a fixing rod (17), a positioning block (18) and a positioning spring (19); The handle (14) is fixedly connected to the unlocking gear (15), the unlocking gear (15) is rotatably connected to the front side of the pressing frame (13), the unlocking rack (16) is slidably connected to the front side of the pressing frame (13), the unlocking rack (16) is meshed with the unlocking gear (15), the unlocking rack (16) is in sliding contact with the fixed rod (17), the fixed rod (17) is in sliding contact with the positioning block (18), the positioning block (18) is slidably connected to the inner side of the pressing frame (13), the positioning block (18) is fixedly connected to the positioning spring (19), and the positioning spring (19) is fixedly connected to the pressing frame (13).

2. A Venetian blinds shading performance testing fixture according to claim 1, characterized in that: A blocking block is fixedly mounted on one side of the two positioning frames (24) that is close to each other, and the outer side of the blocking block is detachably engaged with the inner wall of the blocking groove.

3. The blinds shading performance testing fixture according to claim 1, characterized in that: The outer side of the positioning block (18) is detachably engaged with the positioning groove.

4. The blinds shading performance testing fixture according to claim 1, characterized in that: A tension spring (10) is fixedly mounted on one side of the two positioning racks (27) away from each other, a fixing plate (9) is fixedly mounted on one side of the two tension springs (10) away from each other, and the fixing plate (9) is fixedly mounted on the front side of the mounting plate (5).

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