Testing device for measuring carpet treading wear

Abstract

The utility model relates to the technical field of carpet detection, in particular to a test device for measuring carpet treading wear, which comprises a detection table, an assembly frame, a support plate and a driving shaft, the outer wall of the upper end of the detection table is in threaded connection with the assembly frame, and the outer walls of the two sides of the assembly frame are movably provided with movable rods; the outer wall of the upper end of the movable rod is in threaded connection with a storage plate, the outer wall of the lower end of the movable rod is in threaded connection with a supporting plate, a pressing plate is installed on the outer wall of the lower end of the supporting plate, a sliding groove is formed in the outer wall of one side of the supporting plate, a sliding block is slidably installed in the sliding groove, and a driving shaft is rotatably installed on the outer wall of one side of the supporting plate. The outer wall of one end of the driving shaft is in threaded connection with a first cam, and the upper end of the first cam is provided with a second cam, so that different treading forces between the pedal and the carpet can be simulated, the detection environment is close to the actual use environment of the carpet, and it is ensured that the deviation between detection data and the actual use environment is small; and the authenticity and reliability of detection data are improved.

Description

Technical Field

[0001] This utility model relates to the field of carpet testing technology, specifically to a test device for measuring carpet wear and tear. Background Technology

[0002] Carpets are floor coverings made from natural fibers such as cotton, linen, wool, silk, and grass, or chemically synthesized fibers, through hand or mechanical processes of weaving, pile formation, or spinning. Carpet abrasion testing is an important means of evaluating the durability and wear resistance of carpets. The test data can accurately assess the degree of wear caused by stepping on the carpet during actual use, providing a scientific basis for carpet quality control, performance optimization, and consumer selection.

[0003] Trampling abrasion testing devices typically employ Martindale-type, reciprocating linear, or rotating platform-type devices. The reciprocating linear device usually includes a treading component that reciprocates along a linear track. This component has tread blocks at its bottom that simulate shoe soles, mimicking the treading motion of a person walking in a straight line on the carpet. The treading component moves back and forth on the carpet surface at a set speed and pressure, with each reciprocating motion equivalent to one treading cycle. Because linear motion more intuitively simulates frequent treading along a specific path, it is highly valuable for analyzing carpet wear in areas such as corridors and passageways.

[0004] CN204594813U discloses a testing device for the tread performance of automotive carpets. The device includes a horizontally placed support base for supporting automotive carpet test samples. Several vertically distributed guide rods are arranged on the support base. A tray for supporting a mass block is located at the upper end of each guide rod. The tray contacts the guide rods via a sliding sleeve and can slide on the guide rods. A punch for applying static pressure to the automotive carpet test samples is provided on the lower surface of the tray. This invention has a compact structure, provides fixed static pressure conditions for conducting tread performance tests on carpet test samples in vertical or inclined states, is easy to operate, and improves testing efficiency and the reliability of test conditions.

[0005] While the existing technology CN204594813U has many advantages in use, it still has the following problems: its adjustment of stepping pressure is not perfect. It can only perform single stepping pressure tests, which is significantly different from the stepping of people of different weights in real life. As a result, its test data deviates greatly from the actual environment, leading to poor authenticity and reliability of the test data. Utility Model Content

[0006] To address the problems in the prior art, this utility model provides a testing device for measuring carpet wear and tear.

[0007] The technical solution adopted by this utility model to solve its technical problem is a carpet wear test device, including a test platform, an assembly frame, a support plate, and a drive shaft. The assembly frame is screwed to the upper outer wall of the test platform. Movable rods are movably installed on both outer walls of the assembly frame. A placement plate is screwed to the upper outer wall of the movable rod, and a support plate is screwed to the lower outer wall of the movable rod. A pressure plate is installed on the lower outer wall of the support plate. A sliding groove is opened on one outer wall of the support plate, and a slider is slidably installed inside the sliding groove. A drive shaft is rotatably installed on one outer wall of the support plate. A first cam is screwed to the outer wall of one end of the drive shaft, and a second cam is provided on the upper end of the first cam.

[0008] By adopting the above technical solution, the testing table and assembly frame can provide a stable basic support structure for the overall device. The placement plate can move vertically via the movable rod, and the weight of the counterweight allows it to overcome the spring force of the first spring and move vertically downwards until the pressing plate presses down on the carpet sample placed inside the testing slot, maintaining the carpet's stable position during the testing process. Furthermore, because the support plate and pressing plate move synchronously, the distance between the stepper and the upper surface of the carpet sample is equal when the stepper is used with carpet samples of different thicknesses, thus ensuring that the device can handle carpet samples of different thicknesses. The detection results are consistent, improving the adaptability of the device to carpet samples of different thicknesses. When the motor-driven drive shaft, the first cam, and the second cam used on the outside of the support plate rotate, the different protrusion sizes of the first cam and the second cam relative to the drive shaft result in different pushing distances on the pedal when the first cam and the second cam contact the pedal respectively. This simulates different stepping forces between the pedal and the carpet, achieving different stepping pressures, making the detection environment closer to the actual use environment of the carpet, ensuring that the deviation between the detection data and the actual use environment is small, and improving the authenticity and reliability of the detection data.

[0009] Specifically, the lower outer wall of the testing platform is screwed with legs arranged in a rectangular array, the upper outer wall of the testing platform is provided with a testing groove, and the clamping plate is located inside the testing groove.

[0010] By adopting the above technical solution, the weight of the device can be effectively distributed, ensuring the stability of the device during the test and preventing deviations in test results due to an unstable center of gravity. The test slot provides a specific space for the placement and fixation of carpet samples, and with the use of the pressure plate, the position of the carpet is relatively fixed during the test, ensuring the accuracy of the test.

[0011] Specifically, a first spring is provided on one side of the outer wall of the movable rod. The first spring is located between the shelf and the assembly frame. The shelf is elastically connected to the assembly frame through the first spring. A counterweight for providing pressure is placed on one side of the upper outer wall of the shelf.

[0012] By adopting the above technical solution, after the staff places the counterweight on the upper part of the placement plate, the movable rod and support plate are driven to move downward until the pressing plate enters the testing tank and squeezes the upper surface of the carpet sample. At this time, the first spring retracts and stores energy under the drive of the moving support plate. When the staff removes the counterweight, the first spring releases energy and pushes the placement plate and support plate to move upward and reset, so that the pressing plate is released from squeezing the carpet sample, thereby allowing the staff to take the carpet sample out of the testing tank.

[0013] Specifically, a foot pedal is screwed to the lower outer wall of the slider, and the foot pedal is located inside the pressure plate, which has a hollow design.

[0014] By adopting the above technical solution, the pedal can ensure the stability of the vertical movement trajectory through the cooperation of the slider and the groove, and the hollow pressure plate can accommodate the movement space of the pedal. The pedal can achieve reciprocating vertical movement under the action of the first cam or the second cam, so that the pedal can realize pressure detection on the carpet.

[0015] Specifically, spring seats are installed at the lower end of the inner wall of the slide groove and on the outer wall of one side of the slider. A second spring is installed inside the spring seat, and the slider is elastically connected to the lower end of the inner wall of the slide groove through the second spring.

[0016] By adopting the above technical solution, the spring seat restricts the position of the second spring to ensure the support performance of the second spring on the slider. When the pedal is driven to move downward by the first cam or the second cam, the slider moves with the pedal and compresses and stores energy in the second spring. At this time, the pedal contacts the carpet, realizing the step detection step of the pedal on the carpet. When the first cam and the second cam are driven to rotate to a relatively horizontal state, the second spring releases energy and pushes the pedal to move upward with the rotation of the first cam or the second cam. At this time, the pedal disengages from the carpet.

[0017] Specifically, the upper outer wall of the first cam has limiting holes on both sides to restrict its movement trajectory, and the lower outer wall of the second cam has limiting rods installed on both sides, the limiting rods being movably installed inside the limiting holes.

[0018] By adopting the above technical solution, the operator can drive the second cam to move relative to the first cam by rotating the screw. At this time, the relative movement trajectory between the first cam and the second cam is restricted by the cooperation of the limiting hole and the limiting rod. The first cam and the second cam can cooperate precisely to accurately transmit the driving force to the pedal, ensuring the accuracy of each pedaling action and providing a stable mechanical structure foundation for achieving different pedaling pressures.

[0019] Specifically, a screw hole is provided on one side of the upper outer wall of the first cam, and a screw is rotatably installed inside the second cam. The screw protrudes from one end of the second cam and is threaded into the screw hole.

[0020] By adopting the above technical solution, staff can use a wrench to rotate the screw, and through the cooperation between the screw and the screw hole, adjust the distance between the first cam and the second cam. This changes the cooperation relationship between the first cam and the second cam, thereby flexibly adjusting the driving position and force of the pedal to achieve different pedaling pressures. This meets the diverse needs of carpet tread wear testing and enhances the realism and adaptability of the testing device.

[0021] The beneficial effects of this utility model are:

[0022] (1) The carpet tread wear test device described in this utility model can ensure that the distance between the tread pedal and the upper surface of the carpet sample is equal when the tread pedal is relative to carpet samples of different thicknesses, thereby ensuring that the device can detect carpet samples of different thicknesses in a consistent manner and improving the adaptability of the device to carpet samples of different thicknesses.

[0023] (2) The carpet tread wear test device described in this utility model has different pushing distances on the pedal when the first cam and the second cam are in contact with the pedal, thereby simulating different treading forces between the pedal and the carpet, realizing different treading pressures, making the test environment close to the actual use environment of the carpet, ensuring that the test data deviates little from the actual use environment, and improving the authenticity and reliability of the test data. Attached Figure Description

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] Figure 1 This is a schematic diagram of the main structure of the testing platform of this utility model;

[0026] Figure 2 This is an enlarged schematic diagram of the testing platform structure of this utility model;

[0027] Figure 3 This is an exploded view of the assembly frame structure of this utility model;

[0028] Figure 4 This is an exploded view of the shelf structure of this utility model;

[0029] Figure 5 This is an exploded view of the support plate structure of this utility model;

[0030] Figure 6 For the present utility model Figure 5 Enlarged schematic diagram of the first cam structure.

[0031] In the diagram: 1. Testing table; 11. Leg; 2. Assembly frame; 21. Movable rod; 22. Shelf; 23. First spring; 24. Counterweight; 3. Support plate; 31. Pressure plate; 32. Slide groove; 33. Second spring; 34. Slider; 35. Foot pedal; 4. Drive shaft; 41. First cam; 42. Second cam; 43. Limiting hole; 44. Limiting rod; 45. Screw hole; 46. Screw. Detailed Implementation

[0032] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0033] To save manpower and improve efficiency, as one embodiment of this utility model, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, the carpet wear test device of this utility model includes a test platform 1, an assembly frame 2, a support plate 3, and a drive shaft 4. The assembly frame 2 is screwed to the upper outer wall of the test platform 1. Movable rods 21 are movably installed on both outer walls of the assembly frame 2. A placement plate 22 is screwed to the upper outer wall of the movable rod 21. The support plate 3 is screwed to the lower outer wall of the movable rod 21. A pressure plate 31 is installed on the lower outer wall of the support plate 3. A sliding groove 32 is opened on one outer wall of the support plate 3. A slider 34 is slidably installed inside the sliding groove 32. The drive shaft 4 is rotatably installed on one outer wall of the support plate 3. A first cam 41 is screwed to the outer wall of one end of the drive shaft 4. A second cam 42 is provided on the upper end of the first cam 41.

[0034] In use, the testing table 1 and the assembly frame 2 provide a stable basic support structure for the entire device. The placement plate 22 can move vertically via the movable rod 21, and the weight of the counterweight 24 allows the placement plate 22 to overcome the elastic force of the first spring 23 and move vertically downward until the pressing plate 31 presses the carpet sample placed inside the testing slot, maintaining the stability of the carpet during the testing process. Furthermore, because the support plate 3 and the pressing plate 31 move synchronously, the distance between the step pedal 35 and the upper surface of the carpet sample is equal when the step pedal 35 is used with carpet samples of different thicknesses, thus ensuring the device can test carpet samples of different thicknesses. The test results are consistent, improving the adaptability of the device to carpet samples of different thicknesses. When the motor driving the drive shaft 4, the first cam 41 and the second cam 42 used on the outside of the support plate 3 rotate, the different protrusion sizes of the first cam 41 and the second cam 42 relative to the drive shaft 4 result in different pushing distances on the pedal 35 when the first cam 41 and the second cam 42 contact the pedal 35 respectively. This simulates different stepping forces between the pedal 35 and the carpet, achieving different stepping pressures. This makes the testing environment closer to the actual use environment of the carpet, ensuring that the test data deviates little from the actual use environment, and improving the authenticity and reliability of the test data.

[0035] To maintain a stable position, for example, such as Figure 1 As shown, the lower outer wall of the testing platform 1 is screwed with legs 11 arranged in a rectangular array, and the upper outer wall of the testing platform 1 is provided with a testing groove, with the clamping plate 31 located inside the testing groove.

[0036] When in use, it can effectively distribute the weight of the device, ensure the stability of the device during the test, and prevent the test results from being deviated due to an unstable center of gravity. The test groove provides a specific space for the placement and fixation of the carpet sample, and with the use of the clamping plate 31, the position of the carpet is relatively fixed during the test, ensuring the accuracy of the test.

[0037] For controlled movement, exemplified as, Figure 4 As shown, a first spring 23 is provided on one side of the outer wall of the movable rod 21. The first spring 23 is located between the shelf 22 and the assembly frame 2. The shelf 22 is elastically connected to the assembly frame 2 through the first spring 23. A counterweight 24 for providing pressure is placed on one side of the upper outer wall of the shelf 22.

[0038] In use, after the staff places the counterweight 24 on the upper end of the placement plate 22, the movable rod 21 and the support plate 3 are driven to move downward until the pressing plate 31 enters the testing groove and squeezes the upper surface of the carpet sample. At this time, the first spring 23 retracts and stores energy under the drive of the movement of the support plate 3. When the staff removes the counterweight 24, the first spring 23 releases energy and pushes the placement plate 22 and the support plate 3 to move upward and reset, so that the pressing plate 31 is released from squeezing the carpet sample, and the staff can take the carpet sample out of the testing groove.

[0039] For example, in order to detect trampling, such as Figure 5 As shown, a foot pedal 35 is screwed to the lower outer wall of the slider 34. The foot pedal 35 is located inside the pressure plate 31, which has a hollow design.

[0040] In use, the foot pedal 35 can ensure the stability of the vertical movement trajectory through the cooperation of the slider 34 and the groove 32, and the hollow pressure plate 31 can accommodate the movement space of the foot pedal 35. The foot pedal 35 can achieve reciprocating vertical movement under the action of the first cam 41 or the second cam 42, so that the foot pedal 35 can realize the pressure detection of the carpet.

[0041] For reciprocating movement, for example, such as Figure 5 As shown, spring seats are installed on the lower end of the inner wall of the slide groove 32 and on the outer wall of one side of the slider 34. A second spring 33 is installed inside the spring seat, and the slider 34 is elastically connected to the lower end of the inner wall of the slide groove 32 through the second spring 33.

[0042] In use, the spring seat restricts the position of the second spring 33 to ensure the support performance of the second spring 33 for the slider 34. When the pedal 35 is driven to move downward by the first cam 41 or the second cam 42, the slider 34 moves with the pedal 35 and compresses and stores energy in the second spring 33. At this time, the pedal 35 contacts the carpet, realizing the step detection step of the pedal 35 on the carpet. When the first cam 41 and the second cam 42 are driven to rotate to a relatively horizontal state, the second spring 33 releases energy and pushes the pedal 35 to move upward with the rotation of the first cam 41 or the second cam 42. At this time, the pedal 35 disengages from the carpet.

[0043] To limit the movement trajectory, for example, such as Figure 6 As shown, the upper outer wall of the first cam 41 is provided with limiting holes 43 on both sides to limit the movement trajectory, and the lower outer wall of the second cam 42 is provided with limiting rods 44 on both sides, which are movably installed inside the limiting holes 43.

[0044] In use, the operator can drive the second cam 42 to move relative to the first cam 41 by rotating the screw 46. At this time, the relative movement trajectory between the first cam 41 and the second cam 42 is restricted by the cooperation of the limiting hole 43 and the limiting rod 44. The first cam 41 and the second cam 42 can cooperate precisely to accurately transmit the driving force to the pedal 35, ensuring the accuracy of each pedaling action and providing a stable mechanical structure foundation for achieving different pedaling pressures.

[0045] To adjust pedaling pressure, for example, such as Figure 6 As shown, a screw hole 45 is provided on one side of the upper outer wall of the first cam 41, and a screw 46 is rotatably installed inside the second cam 42. One end of the screw 46 protrudes from the second cam 42 and is threaded into the screw hole 45.

[0046] In use, the operator can use a wrench to rotate the screw 46. By cooperating with the screw hole 45, the distance between the first cam 41 and the second cam 42 can be adjusted. This changes the engagement relationship between the first cam 41 and the second cam 42, thereby flexibly adjusting the driving position and force of the pedal 35 to achieve different stepping pressures. This meets the diverse needs of carpet wear testing and enhances the realism and adaptability of the testing device.

[0047] When using this utility model, the carpet sample to be tested is placed inside the testing slot at the top of the testing platform 1. A counterweight 24 is placed on one side of the outer wall of the upper end of the placement plate 22. When the weight of the counterweight 24 is applied, the placement plate 22 overcomes the elastic force of the first spring 23, causing the movable rod 21 and the support plate 3 to move vertically downward. The pressing plate 31 at the lower end of the support plate 3 then enters the testing slot and squeezes the upper surface of the carpet sample. At this time, the first spring 23 contracts and stores energy.

[0048] The staff controls the motor used in conjunction with the controller, which drives the drive shaft 4 to rotate, thereby causing the first cam 41 and the second cam 42 to rotate.

[0049] Since the protrusion dimensions of the first cam 41 and the second cam 42 relative to the drive shaft 4 are different, when they contact the pedal 35 respectively, the pushing distance of the pedal 35 is different, so that the pedal 35 can apply different stepping pressure to the carpet.

[0050] When the first cam 41 or the second cam 42 pushes the pedal 35 downward, the slider 34 moves with the pedal 35 and compresses the second spring 33 to store energy. The pedal 35 contacts the carpet to detect stepping on the carpet. When the first cam 41 and the second cam 42 rotate to a relatively horizontal state, the second spring 33 releases energy, pushing the pedal 35 upward as it rotates with the first cam 41 or the second cam 42. The pedal 35 then disengages from the carpet, completing one stepping cycle.

[0051] If the pedal pressure needs to be adjusted, the staff can take a wrench to rotate the screw 46. The screw 46 cooperates with the screw hole 45 on the first cam 41, thereby adjusting the distance between the first cam 41 and the second cam 42. At the same time, the cooperation of the limiting hole 43 and the limiting rod 44 ensures the stability of the movement trajectory of the second cam 42.

[0052] After the test is completed, the staff removes the counterweight 24 on the shelf 22, the first spring 23 releases its energy, and pushes the shelf 22 and the support plate 3 to move upward and reset. The clamping plate 31 is released from the pressure on the carpet sample. After that, the carpet sample that has completed the test can be taken out from the inside of the test tank for subsequent wear detection and analysis.

[0053] It should be noted that this utility model is a test device for measuring carpet wear and tear. All components in this utility model are known to those skilled in the art, and their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0054] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A device for measuring carpet tread wear, characterized by, Including detection platform (1), assembly frame (2), support plate (3) and drive shaft (4), the outer wall screw connection of upper end of detection platform (1) has assembly frame (2), both sides outer wall of assembly frame (2) are movably installed with movable rod (21), the outer wall screw connection of upper end of movable rod (21) has storage plate (22), the outer wall screw connection of lower end of movable rod (21) has support plate (3), the lower end outer wall of support plate (3) is installed with compression plate (31), the outer wall of one side of support plate (3) is provided with sliding groove (32), the sliding block (34) is slidably installed in the inside of sliding groove (32), the outer wall of one side of support plate (3) is rotatably installed with drive shaft (4), the outer wall screw connection of one end of drive shaft (4) has first cam (41), the upper end of first cam (41) is provided with second cam (42).

2. The apparatus for measuring carpet foot traffic wear testing of claim 1, wherein, The outer wall screw connection of lower end of detection platform (1) has rectangular array distribution's support (11), the outer wall of upper end of detection platform (1) is provided with detection groove, the compression plate (31) is located inside detection groove.

3. The apparatus for measuring carpet foot traffic wear testing of claim 1, wherein, The outer wall one side of movable rod (21) is provided with first spring (23), the first spring (23) is located between storage plate (22) and assembly frame (2), the storage plate (22) is elastically connected between first spring (23) and assembly frame (2), the upper end outer wall one side of storage plate (22) is placed with counterweight (24) for providing pressure.

4. The apparatus for measuring carpet foot traffic wear testing of claim 1, wherein, The outer wall screw connection of lower end of sliding block (34) has treading plate (35), the treading plate (35) is located inside compression plate (31), the inside of compression plate (31) is designed as hollow.

5. The apparatus for measuring carpet foot traffic wear testing of claim 1, wherein, The spring seat is installed in the lower end of the inner wall of the sliding groove (32) and the outer wall of one side of the sliding block (34), the second spring (33) is installed in the spring seat, and the sliding block (34) is elastically connected between the lower end of the inner wall of the sliding groove (32) and the outer wall of one side of the sliding block (34) through the second spring (33).

6. The apparatus for measuring carpet foot traffic wear testing of claim 1, wherein, The outer wall of the upper end of the first cam (41) is provided with a limiting hole (43) on both sides for limiting the movement track, the limiting rod (44) is installed on the outer wall of the lower end of the second cam (42), and the limiting rod (44) is movably installed in the limiting hole (43).

7. The apparatus for measuring carpet foot traffic wear testing of claim 1, wherein, The outer wall one side of upper end of first cam (41) is provided with screw hole (45), the inside of second cam (42) is rotatably installed with screw rod (46), and one end of screw rod (46) protruding from second cam (42) is screw connected in the inside of screw hole (45).

Images