Device for detecting air permeability of school uniform fabric

Abstract

The invention relates to the technical field of school uniform, and provides a school uniform fabric breathability detection device which comprises a frame and two moving blocks, a fan is fixedly mounted on the inner wall of the frame, two first sliding grooves are formed in the bottom of the inner wall of the frame, and two rolling wheels are rotationally mounted on the two sides of each moving block. A fan is started through an external power source, the fan blows wind to the surface of the fabric body, wind power is emitted from the air holes of the fabric body, the rolling distance of the rolling wheels in the first sliding grooves is shorter under the condition that the breathability of the fabric body is good, and the resistance of the fabric body is larger under the condition that the breathability of the fabric body is poor. When the sliding mechanism moves, the moving distance of the rolling wheel in the first sliding groove is longer, meanwhile, a first spring and a damper are matched so that a buffer block can have elasticity and have the buffering effect, and meanwhile when a buffer protruding block makes contact with the buffer block, the whole sliding mechanism can be buffered.

Description

Technical Field

[0001] The present invention relates to the technical field of school uniforms, and in particular to a device for detecting air permeability of school uniform fabrics. Background Art

[0002] With the continuous development of the education industry, the comfort and functionality of school uniforms, an essential part of students' daily wear, are gaining increasing attention. Fabric breathability is a key factor influencing the comfort of school uniforms. Good breathability effectively removes sweat and heat, preventing stuffiness and enhancing the student experience. Therefore, testing fabric breathability is particularly important during the school uniform production process.

[0003] Traditional fabric air permeability testing methods mostly use static testing, such as fixing the fabric on a testing device, blowing air through it with a fan, and observing the airflow. However, this method has the following drawbacks: Traditional devices can usually only detect fixed positions, making it difficult to comprehensively evaluate the breathability of different areas of the fabric, which may lead to inaccurate test results. Dust or fine particles may exist on the surface of the fabric, clogging the air holes and affecting the authenticity of the test results. Traditional devices lack effective cleaning functions, and the process of fixing and adjusting the fabric is relatively complicated. In addition, there is a lack of convenient movement and positioning mechanisms, which affects the efficiency of detection. Dynamic detection is insufficient. Traditional methods are difficult to simulate the dynamic breathability of fabrics in actual wear and cannot fully reflect the performance of fabrics in actual use. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem in the prior art that traditional devices can usually only detect fixed positions, making it difficult to comprehensively evaluate the air permeability of different areas of the fabric, which may lead to inaccurate test results. Dust or fine particles may exist on the surface of the fabric, clogging the air holes and affecting the authenticity of the test results. Traditional devices lack effective cleaning functions, the process of fixing and adjusting the fabric is relatively complicated, and there is a lack of convenient moving and positioning mechanisms, which affects the detection efficiency. Dynamic detection is insufficient, and traditional methods are difficult to simulate the dynamic air permeability of fabrics in actual wear, and cannot fully reflect the performance of fabrics in actual use.

[0005] In order to achieve the above-mentioned objectives, the present invention adopts the following technical scheme: a school uniform fabric air permeability detection device, comprising: a frame and two moving blocks, the inner wall of the frame is fixedly installed with a fan, the bottom of the inner wall of the frame is provided with two slide grooves 1, two rollers are rotatably installed on both sides of the two moving blocks, and multiple rollers slide respectively inside the two slide grooves 1, and a moving frame is fixedly installed on the opposite surfaces of the two rollers, the upper and lower inner walls of the moving frame are provided with slide grooves 2, the inner part of the two slide grooves 2 is slidably connected to the inner frame, the inner frame is connected to a threaded rod through a bearing on one side near the surrounding area, the outer surfaces of multiple threaded rods are movably sleeved with L-shaped blocks 1, and the inner frame is fixedly installed with a limiting rod on one side near the multiple threaded rods, and multiple L-shaped blocks 1 are movably sleeved on the outer surfaces of multiple limiting rods.

[0006] The technical effect of adopting the above-mentioned further scheme is: the fabric body is placed inside the inner frame, and then the L-shaped block is moved on its outer surface by rotating the threaded rod under the limit of the limit rod. At the same time, the L-shaped block is located on the outer surface of the inner frame after moving, thereby fixing the fabric body.

[0007] As a preferred embodiment, the inner part of the inner frame is detachably connected to the fabric body, and an L-shaped block 2 is fixedly installed on one side of the inner frame near the top thereof, and a fixing strip is fixedly installed on one side of the L-shaped block 2.

[0008] The technical effect of adopting the above further solution is: the L-shaped block 2 is used to limit the spring 2, so that the spring 2 limits the limiting circular block.

[0009] As a preferred embodiment, a pull rod is movably embedded in the interior of the L-shaped block 2, one end of the pull rod is fixedly connected to a limiting circular block, the limiting circular block is located on the side of the fixed bar close to the L-shaped block 2, a spring 2 is fixedly installed on the side of the limiting circular block close to the L-shaped block 2, one end of the spring 2 is fixedly connected to the side of the L-shaped block 2, a clamping rod is fixedly installed on the side of the limiting circular block away from the spring 2, a plurality of clamping holes are opened on the side of the movable frame close to the top, and the clamping rod is movably embedded in the inside of one of the clamping holes.

[0010] The technical effect of adopting the above-mentioned further scheme is: pulling the pull rod drives the locking rod to disengage from the inside of the limit rod. At this time, the inner frame can be pulled to move inside the second slide groove, and the fabric body can be driven to move horizontally. At this time, the range of fabric body detection is increased during the blowing detection.

[0011] As a preferred embodiment, a side strip is fixedly installed on the side of the frame away from the fan, two springs 1 are fixedly installed on one side of the side strip, two dampers are fixedly installed on one side of the side strip, one end of the spring 1 and the damper are fixedly connected with a buffer block, buffer protrusions are fixedly connected on both sides of the outer surface of the movable frame, a pulling block is fixedly installed on one side of the inner frame, a pointer is fixedly installed on one side of the movable frame, an electric push rod is fixedly installed on the top of one of the movable blocks, a lifting bar is fixedly installed on the bottom end of the electric push rod, and two vertical slots 2 are provided on one side of the inner frame.

[0012] The technical effect of adopting the above further solution is that the clamping rod is movably embedded in one of the limiting rods to limit the inner frame.

[0013] As a preferred embodiment, two vertical slots 1 are opened on one side of the movable frame, the lifting bar slides inside the vertical slot 2 and the vertical slot 1, a dust removal roller is rotatably installed on one side of the lifting bar, a motor is fixedly installed on one side of the lifting bar, and the dust removal roller is fixed at the output end of the motor.

[0014] The technical effect of adopting the above-mentioned further scheme is: the electric push rod is started by an external power supply, and at this time the electric push rod pushes the lifting bar to move up and down inside the vertical groove one and the vertical groove two, and at this time drives the dust removal roller to roll on the surface of the fabric body, and at the same time, the motor is started by the external power supply to drive the dust removal roller to rotate. At this time, the dust removal roller can clean the dust on the surface of the fabric body to prevent fine dust from clogging the air pores of the fabric. When the fabric body is fixed and cleaned, the dust will fall into the inside of the material receiving box under the action of gravity for collection.

[0015] As a preferred embodiment, the dust removal roller is located on the outer surface of the fabric body, a material receiving box is provided at the bottom of the inner wall of the movable frame, and a plurality of scales are provided on one side of the frame.

[0016] The technical effect of adopting the above further solution is: it is used to clean the dust inside the air vents of the fabric body, ensure that the gas passes through the middle, and improve the quality of detection.

[0017] Compared with the prior art, the advantages and positive effects of the present invention are: 1. In the embodiment of the present invention, the fabric body is placed inside the inner frame, and then the threaded rod is rotated to make the L-shaped block 1 move on its outer surface under the limit of the limit rod. At the same time, the L-shaped block 1 is located on the outer surface of the inner frame after moving, thereby fixing the fabric body. At this time, the fabric body is fixedly installed inside the inner frame, and then the electric push rod is started by an external power supply. At this time, the electric push rod pushes the lifting bar to move up and down inside the vertical slot 1 and the vertical slot 2, and the dust removal roller is driven to roll on the surface of the fabric body. At the same time, the motor is started by the external power supply to drive the dust removal roller to rotate. At this time, the dust removal roller can clean the dust on the surface of the fabric body to prevent fine dust from clogging the air vents of the fabric. When the fabric body is fixed and cleaned, the dust will fall into the inside of the material receiving box under the action of gravity for collection.

[0018] 2. In the embodiment of the present invention, the fan is started by an external power supply, and the fan blows wind to the surface of the fabric body, and the wind emerges from the air vents of the fabric body. When the fabric body is more breathable, the distance the roller rolls inside the slide groove 1 will be shorter. When the fabric body is less breathable, the resistance of the fabric body will be greater, and the distance the roller moves inside the slide groove 1 will be longer. At the same time, the spring 1 cooperates with the damper to make the buffer block elastic and have a buffering effect. At the same time, when the buffer protrusion contacts the buffer block, the entire sliding mechanism can be buffered.

[0019] 3. In the embodiment of the present invention, when the moving frame moves, the pointer is driven to move on the surface of the scale. The scale can display the distance moved by the moving frame, thereby judging the air permeability of the fabric body. The wind speed of the fan is constant. The staff can set it according to the setting. For example, moving 3 cm is the standard value. If the movement exceeds 3 cm, the fabric is unqualified and the air permeability is poor and is considered unqualified. At the same time, the pull rod can be pulled to drive the limit circle to move. At this time, the limit circle drives the card rod to disengage from the inside of the limit circle. At this time, the pull block can be pulled to drive the inner frame to move inside the second slide groove, thereby driving the fabric body to move horizontally inside the moving frame. Because the fan is fixed, the air permeability of the fabric body can be tested at multiple locations on its surface after it moves. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the three-dimensional structure of a school uniform fabric air permeability detection device provided by the present invention; Figure 2 This is a schematic diagram of the motor structure of a school uniform fabric air permeability detection device provided by the present invention; Figure 3 A schematic side view of a school uniform fabric air permeability detection device provided by the present invention; Figure 4This is a schematic diagram of the enlarged structure of point A of a school uniform fabric air permeability detection device provided by the present invention; Figure 5 A schematic diagram of the movable frame structure of a school uniform fabric air permeability detection device provided by the present invention; Figure 6 This is a schematic diagram of the enlarged structure of point B of a school uniform fabric air permeability detection device provided by the present invention; Figure 7 A schematic side plan view of the structure of a school uniform fabric air permeability detection device provided by the present invention; Figure 8 This is a side structural schematic diagram of a movable frame of a school uniform fabric air permeability detection device provided by the present invention.

[0021] Legend: 101. Frame; 102. Fan; 103. Side bar; 104. Spring 1; 105. Damper; 106. Buffer block; 107. Scale; 108. Moving frame; 109. Slide 1; 110. Inner frame; 111. Threaded rod; 112. Limit rod; 113. Fabric body; 114. L-shaped block 1; 115. Slide 2; 116. L-shaped block 2; 117. Fixing bar ; 118, pull rod; 119, spring 2; 120, limit circle; 121, clamping rod; 122, clamping hole; 123, pulling block; 124, moving block; 125, roller; 126, pointer; 127, vertical slot 1; 128, lifting bar; 1281, electric push rod; 129, dust removal roller; 130, vertical slot 2; 1301, motor; 131, material receiving box; 132, buffer bump. DETAILED DESCRIPTION

[0022] The following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0023] See also Figures 1 to 8, This embodiment provides a technical solution: a school uniform fabric air permeability detection device, comprising: a frame 101 and two moving blocks 124, the inner wall of the frame 101 is fixedly installed with a fan 102, the bottom of the inner wall of the frame 101 is provided with two slide grooves 109, two rollers 125 are rotatably installed on both sides of the two moving blocks 124, and multiple rollers 125 slide inside the two slide grooves 109 respectively, and a moving frame 108 is fixedly installed on the opposite surfaces of the two rollers 125, and the upper and lower inner walls of the moving frame 108 are provided with slide grooves 115, and the inner parts of the two slide grooves 115 are slidably connected to the inner frame 110, and the inner frame 110 is connected to a threaded rod 111 on one side near the periphery thereof through a bearing, and the outer surfaces of the multiple threaded rods 111 are movably sleeved with L-shaped blocks 114, and the inner frame 110 is fixedly installed with a limiting rod 112 on one side near the multiple threaded rods 111, and the multiple L-shaped blocks 114 are movably sleeved on the outer surfaces of the multiple limiting rods 112.

[0024] When in use, the fabric body 113 is placed inside the inner frame 110, and then the threaded rod 111 is rotated to move the L-shaped block 114 on its outer surface under the limit of the limit rod 112. At the same time, the L-shaped block 114 is located on the outer surface of the inner frame 110 after moving, thereby fixing the fabric body 113.

[0025] like Figures 1 to 8 As shown, in one embodiment, the inner frame 110 is detachably connected to the fabric body 113, and an L-shaped block 116 is fixedly installed on one side of the inner frame 110 near the top thereof, and a fixing strip 117 is fixedly installed on one side of the L-shaped block 116. The L-shaped block 116 is used to limit the spring 119, so that the spring 119 limits the limiting circular block 120.

[0026] like Figures 1 to 8 As shown, in one embodiment, a pull rod 118 is movably embedded in the interior of the L-shaped block 116, and one end of the pull rod 118 is fixedly connected to a limiting circular block 120. The limiting circular block 120 is located on the side of the fixed bar 117 close to the L-shaped block 116, and a spring 219 is fixedly installed on the side of the limiting circular block 120 close to the L-shaped block 116. One end of the spring 219 is fixedly connected to the side of the L-shaped block 116, and a clamping rod 121 is fixedly installed on the side of the limiting circular block 120 away from the spring 219. A plurality of clamping holes 122 are provided on the side of the movable frame 108 close to the top, and the clamping rod 121 is movably embedded in one of the clamping holes 122. Pulling the pull rod 118 drives the clamping rod 121 to disengage from the interior of the limiting rod 112. At this time, the inner frame 110 can be pulled to move inside the second slide groove 115, and the fabric body 113 can be driven to move laterally. At this time, the detection range of the fabric body 113 is increased during the blowing detection.

[0027] like Figures 1 to 8As shown, in one embodiment, a side strip 103 is fixedly installed on one side of the frame 101 away from the fan 102, two springs 104 are fixedly installed on one side of the side strip 103, two dampers 105 are fixedly installed on one side of the side strip 103, one end of the spring 104 and the damper 105 are fixedly connected to a buffer block 106, buffer protrusions 132 are fixedly connected to both sides of the outer surface of the movable frame 108, a pulling block 123 is fixedly installed on one side of the inner frame 110, a pointer 126 is fixedly installed on one side of the movable frame 108, an electric push rod 1281 is fixedly installed on the top of one of the movable blocks 124, and a lifting bar 128 is fixedly installed on the bottom end of the electric push rod 1281, two vertical slots 2 130 are provided on one side of the inner frame 110, and the card rod 121 is movably embedded in the inside of one of the limit rods 112 for limiting the inner frame 110.

[0028] like Figures 1 to 8 As shown, in one embodiment, one side of the movable frame 108 is provided with two vertical slots 127, and the lifting bar 128 slides inside the vertical slot 2 130 and the vertical slot 1 127. A dust removal roller 129 is rotatably installed on one side of the lifting bar 128, and a motor 1301 is fixedly installed on one side of the lifting bar 128. The dust removal roller 129 is fixed to the output end of the motor 1301, and the electric push rod 1281 is started by an external power supply. At this time, the electric push rod 1281 pushes the lifting bar 128 to move up and down inside the vertical slot 1 127 and the vertical slot 2 130. At this time, the dust removal roller 129 is driven to roll on the surface of the fabric body 113. At the same time, the motor 1301 is started by an external power supply to drive the dust removal roller 129 to rotate. At this time, the dust removal roller 129 can clean the dust on the surface of the fabric body 113 to prevent fine dust from clogging the air vents of the fabric. When the fabric body 113 is fixed and cleaned, the dust will fall into the inside of the material receiving box 131 under the action of gravity for collection.

[0029] like Figures 1 to 8 As shown, in one embodiment, a dust removal roller 129 is located on the outer surface of the fabric body 113, a material receiving box 131 is provided at the bottom of the inner wall of the movable frame 108, and a plurality of scales 107 are provided on one side of the frame 101 for cleaning the dust inside the air holes of the fabric body 113 to ensure that the gas passes through the middle and increase the quality of detection.

[0030] Working principle: When in use, first place the fabric body 113 inside the inner frame 110, and then rotate the threaded rod 111 to move the L-shaped block 114 on its outer surface under the limit of the limit rod 112. At the same time, the L-shaped block 114 is located on the outer surface of the inner frame 110 after moving, thereby fixing the fabric body 113. At this time, the fabric body 113 is fixedly installed inside the inner frame 110, and then the electric push rod 1281 is started by an external power supply. At this time, the electric push rod 1281 pushes the lifting bar 128 to move up and down inside the vertical slot 1 127 and the vertical slot 2 130, and at this time drives the dust removal roller 129 on the surface of the fabric body 113. The dust collecting roller 129 is rotated and the motor 1301 is started by an external power supply to drive the dust collecting roller 129 to rotate. At this time, the dust collecting roller 129 can clean the dust on the surface of the fabric body 113 to prevent the fine dust from clogging the air vents of the fabric. When the fabric body 113 is fixed and cleaned, the dust will fall to the inside of the material receiving box 131 under the action of gravity for collection. The dust collecting roller 129 is located above the inner frame 110, and then the fan 102 is started by an external power supply. The fan 102 blows the wind to the surface of the fabric body 113, and the wind emerges from the air vents of the fabric body 113. When the fabric body 113 is well ventilated, the roller 125 moves in the slide groove. The shorter the internal rolling distance of 109, when the air permeability of the fabric body 113 is poor, the greater the resistance of the fabric body 113 will be, and the longer the distance the roller 125 moves inside the slide groove 109 will be. At the same time, the spring 104 cooperates with the damper 105 to make the buffer block 106 elastic and have a buffering effect. At the same time, when the buffer protrusion 132 contacts the buffer block 106, the entire sliding mechanism can be buffered. At the same time, when the moving frame 108 moves, it drives the pointer 126 to move on the surface of the scale 107. The scale 107 can display the distance moved by the moving frame 108, thereby judging the air permeability of the fabric body 113. The wind speed of the fan 102 is constant. The staff can adjust the speed according to the settings, for example, moving 3 cm is the standard value. If the movement exceeds 3 cm, the fabric is unqualified and the air permeability is poor and is considered unqualified. At the same time, the pull rod 118 can be pulled to drive the limiting circle 120 to move. At this time, the limiting circle 120 drives the card rod 121 to disengage from the inside of the limiting circle 120. At this time, the pulling block 123 can be pulled to drive the inner frame 110 to move inside the slide groove 115, and then drive the fabric body 113 to move horizontally inside the moving frame 108. Because the fan 102 is fixed, when the fabric body 113 moves, the air permeability of multiple places on its surface can be tested.

[0031] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology. The content not described in detail in this specification belongs to the existing technology known to professional and technical personnel in this field and will not be described in detail here.

[0032] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any other form. Any person skilled in the art may use the technical contents disclosed above to change or modify them into equivalent embodiments with equivalent changes for application in other fields. However, any simple modification, equivalent change and modification of the above embodiments made in accordance with the technical essence of the present invention without departing from the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A device for detecting the air permeability of school uniform fabrics, comprising: The frame (101) and two moving blocks (124) are characterized in that a fan (102) is fixedly installed on the inner wall of the frame (101), two slide grooves (109) are opened at the bottom of the inner wall of the frame (101), two rollers (125) are rotatably installed on both sides of the two moving blocks (124), and the plurality of rollers (125) slide inside the two slide grooves (109) respectively, and a moving frame (108) is fixedly installed on the opposite surface of the two rollers (125), and the upper surface of the moving frame (108) is fixedly installed. The lower inner wall is provided with a second slide groove (115), and the inner parts of the two second slide grooves (115) are slidably connected to the inner frame (110). The inner frame (110) is connected to a threaded rod (111) on one side close to the periphery thereof through a bearing, and the outer surfaces of the plurality of threaded rods (111) are movably sleeved with an L-shaped block (114). The inner frame (110) is fixedly installed with a limiting rod (112) on one side close to the plurality of threaded rods (111), and the plurality of L-shaped blocks (114) are movably sleeved on the outer surfaces of the plurality of limiting rods (112).

2. The air permeability detection device for school uniform fabrics according to claim 1, characterized in that: The inner frame (110) is detachably connected to a fabric body (113), and a second L-shaped block (116) is fixedly mounted on one side of the inner frame (110) near the top thereof, and a fixing strip (117) is fixedly mounted on one side of the second L-shaped block (116).

3. The air permeability detection device for school uniform fabrics according to claim 2, characterized in that: A pull rod (118) is movably embedded inside the L-shaped block 2 (116), one end of the pull rod (118) is fixedly connected to a limiting circular block (120), and the limiting circular block (120) is located on a side of the fixing bar (117) close to the L-shaped block 2 (116). A spring 2 (119) is fixedly installed on a side of the limiting circular block (120) close to the L-shaped block 2 (116), and one end of the spring 2 (119) is fixedly connected to one side of the L-shaped block 2 (116).

4. The air permeability detection device for school uniform fabrics according to claim 3, characterized in that: A clamping rod (121) is fixedly mounted on the side of the limiting circular block (120) away from the second spring (119), and a plurality of clamping holes (122) are provided on the side of the movable frame (108) close to the top, and the clamping rod (121) is movably embedded in one of the clamping holes (122).

5. The air permeability detection device for school uniform fabrics according to claim 4, characterized in that: A side strip (103) is fixedly mounted on one side of the frame (101) away from the fan (102), two springs (104) are fixedly mounted on one side of the side strip (103), two dampers (105) are fixedly mounted on one side of the side strip (103), one end of each of the springs (104) and the dampers (105) are fixedly connected to a buffer block (106), and both sides of the outer surface of the movable frame (108) are fixedly connected to buffer protrusions (132).

6. The air permeability detection device for school uniform fabrics according to claim 5, characterized in that: A pulling block (123) is fixedly mounted on one side of the inner frame (110), a pointer (126) is fixedly mounted on one side of the moving frame (108), an electric push rod (1281) is fixedly mounted on the top of one of the moving blocks (124), a lifting bar (128) is fixedly mounted on the bottom end of the electric push rod (1281), and two vertical slots (130) are provided on one side of the inner frame (110).

7. The air permeability detection device for school uniform fabrics according to claim 6, characterized in that: Two vertical slots (127) are provided on one side of the movable frame (108), and the lifting bar (128) slides inside the vertical slot (130) and the vertical slot (127). A dust removal roller (129) is rotatably mounted on one side of the lifting bar (128).

8. The air permeability detection device for school uniform fabrics according to claim 7, characterized in that: A motor (1301) is fixedly mounted on one side of the lifting bar (128).

9. The air permeability detection device for school uniform fabrics according to claim 8, characterized in that: The dust removal roller (129) is fixed to the output end of the motor (1301).

10. The air permeability detection device for school uniform fabrics according to claim 9, characterized in that: The dust removal roller (129) is located on the outer surface of the fabric body (113), a material receiving box (131) is provided at the bottom of the inner wall of the movable frame (108), and a plurality of scales (107) are provided on one side of the frame (101).

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