A textile abrasion resistance detection device

Abstract

The application relates to the technical field of textile detection, in particular to a textile wear resistance detection device, which comprises a detection box, a friction mechanism is arranged on one side of the detection box, the friction mechanism comprises a rotating shaft rotating in the detection box, a plurality of polishing rollers are arranged on the outer side of the rotating shaft, a first eccentric wheel is connected to one end of the rotating shaft and penetrates through the detection box, a first movable column is arranged on the first eccentric wheel, and an inflation mechanism is arranged on the upper end of the first movable column. The application aims to provide that the first connecting sleeve is reciprocated to drive the non-woven fabric product in the first connecting sleeve to reciprocate, different degrees of extrusion are carried out on the non-woven fabric product and the polishing rollers on the rotating disc, friction of the non-woven fabric under different stretching forces and pressures is carried out, the use in daily life is simulated, and more precise non-woven fabric wear resistance data can be obtained.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of textile detection, in particular to a textile wear resistance detection device. BACKGROUND

[0002] Clothing textiles will be subjected to various wear and tear during wearing and use, which will cause fabric damage. We usually refer to the characteristics of textile resistance to wear and tear as wear resistance. Wear resistance is an important indicator for measuring the quality of textile products, and directly affects the durability and use effect of the products. Wear and tear is one of the main reasons for the damage of clothing fabrics, which is affected by several factors such as fiber properties, yarn structure, fabric organization and dyeing and finishing processing characteristics.

[0003] The existing textile wear resistance detection device is directly rubbed against non-woven fabric during use, but in daily life, the rubbing of non-woven fabric products is often under different pressures in different use conditions, so that the existing device is difficult to cope with the problems encountered in daily life, thereby making the detection of non-woven fabric wear resistance not comprehensive. SUMMARY

[0004] The purpose of the present application is to provide a textile wear resistance detection device, which moves reciprocally through the first connecting sleeve to drive the non-woven fabric product inside the first connecting sleeve to move reciprocally, and is subjected to different degrees of extrusion by the multiple polishing rollers on the turntable, so as to rub the non-woven fabric under different stretching forces and pressures, simulate the use in daily life, and thus obtain more precise non-woven fabric wear resistance data.

[0005] To achieve the above purpose, the present application provides the following technical scheme: a textile wear resistance detection device, comprising a detection box, a friction mechanism is arranged on one side of the detection box;

[0006] The friction mechanism comprises a rotating shaft rotating in the detection box, multiple polishing rollers are arranged on the outer side of the rotating shaft, a first eccentric wheel is connected to one end of the rotating shaft and penetrates the detection box, a first movable column is arranged on the first eccentric wheel, and an inflation mechanism is arranged on the upper end of the first movable column;

[0007] The inflation mechanism comprises a piston cylinder arranged on the upper end of the first movable column, a first connecting block is arranged on the upper end of the piston cylinder, an air inlet pipe penetrates the first connecting block, a conveying pipe is connected to the upper end of the first connecting block, one end of the conveying pipe is communicated with a gas storage column, a sealing plate is arranged on one side of the gas storage column, and an adjusting mechanism is further arranged on the rotating shaft;

[0008] The adjusting mechanism comprises a second eccentric wheel fixed on the rotating shaft, a connecting rod arranged in the second eccentric wheel, a first connecting sleeve arranged at one end of the connecting rod, a fixing mechanism arranged at the upper end of the first connecting sleeve, a second connecting sleeve arranged on the detection box, a fan arranged in the second connecting sleeve, and a rack arranged on the fixing mechanism.

[0009] Preferably, one side of the detection box is provided with a motor, the motor is provided with a support seat, and the output end of the support seat is connected with the rotating shaft.

[0010] Preferably, one side of the rotating shaft is provided with a rotating disc, the rotating disc is connected with a plurality of polishing rollers, and the plurality of polishing rollers are designed to be detachable.

[0011] Preferably, the first movable column is provided with a push rod, and one end of the push rod is inserted into the piston cylinder.

[0012] Preferably, one end of the air inlet pipe is communicated with the detection box, the spring is arranged in the air storage column, one end of the spring is provided with a connecting column, and the connecting column is inserted into the air storage column.

[0013] Preferably, one end of the connecting column is connected with the sealing plate, the detection box is provided with an opening, the detection box is provided with a first groove, and the size of the first groove is matched with the sealing plate.

[0014] Preferably, the second movable column is arranged in the second eccentric wheel, and the second movable column is connected with the connecting rod.

[0015] Preferably, one end of the fan is provided with a gear, and the gear is engaged with the rack.

[0016] Preferably, the fixing mechanism is provided with a second connecting block, and one end of the second connecting block is connected with the rack.

[0017] Preferably, a plurality of limiting blocks are arranged on the first connecting sleeve, a plurality of second grooves are arranged in the detection box, and the size of the second groove is matched with the limiting block.

[0018] Compared with the prior art, the present application has the following advantages:

[0019] The non-woven fabric product in the first connecting sleeve is driven to move back and forth by the first connecting sleeve, and is extruded by the plurality of polishing rollers on the rotating disc to different degrees, so as to simulate the use in daily life, so as to obtain more precise non-woven fabric wear resistance data.

[0020] The application utilizes the reciprocating movement of the push rod inside the piston cylinder, so that the nitrogen in the air inlet pipe enters the conveying pipe and the detection box inside through the first connecting block respectively, the nitrogen inside the conveying pipe enters the gas storage column inside through the conveying pipe, the connecting column movement drives the sealing plate to move, so that the detection box becomes airtight environment, and the gas in the air inlet pipe enters the detection box through the first connecting block, because the density of nitrogen is less than that of air, the air inside the detection box is discharged from the opening on the detection box, avoiding the influence of the air inside the detection box on the wear resistance detection of the textile.

[0021] The application rotates the fan driven by the gear rotation, the fan rotation accelerates the air inside the detection box to be discharged to the outside, reduces the air content inside the detection box, ensures the accuracy of the experimental results, and when the first eccentric wheel moves to make the inside of the detection box become airtight environment, the fan rotation makes the heat generated when the non-woven fabric rubs be quickly transferred and dissipated, reduces the influence of the heat generated by rubbing on the wear resistance detection of the non-woven fabric. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is the overall structure schematic diagram of the application;

[0023] Figure 2 It is the overall structure schematic diagram of the application;

[0024] Figure 3 It is the friction mechanism partial structure schematic diagram of the application;

[0025] Figure 4 It is the air charging mechanism partial structure schematic diagram of the application one;

[0026] Figure 5 It is the air charging mechanism partial structure schematic diagram of the application two;

[0027] Figure 6 It is the adjusting mechanism partial structure schematic diagram of the application one;

[0028] Figure 7 It is the adjusting mechanism partial structure schematic diagram of the application two.

[0029] In the figure: 1, detection box; 2, friction mechanism; 21, motor; 22, support seat; 23, rotating shaft; 25, rotating disc; 26, polishing roller; 27, first eccentric wheel; 28, first movable column; 29, push rod; 3, inflation mechanism; 31, piston cylinder; 32, air inlet pipe; 33, conveying pipe; 34, air storage column; 35, spring; 36, connecting column; 37, sealing plate; 38, first connecting block; 4, adjusting mechanism; 41, second eccentric wheel; 42, connecting rod; 421, second movable column; 43, first connecting sleeve; 44, limiting block; 45, fixing mechanism; 46, second connecting sleeve; 47, fan; 48, rack; 49, gear; 410, second connecting block. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

[0031] The present application provides a kind of textile wear resistance detection device, including detection box 1, detection box 1 side is provided with friction mechanism 2;

[0032] Friction mechanism 2 includes rotating shaft 23 rotating in the inside of detection box 1, rotating shaft 23 outer side is provided with multiple sets of polishing roller 26, rotating shaft 23 one end is connected with first eccentric wheel 27 penetrating detection box 1, first eccentric wheel 27 is provided with first movable column 28, first movable column 28 upper end is provided with inflation mechanism 3;

[0033] Inflation mechanism 3 includes piston cylinder 31 being provided on the upper end of first movable column 28, piston cylinder 31 upper end is provided with first connecting block 38, first connecting block 38 is penetrated with air inlet pipe 32 inside, first connecting block 38 upper end is connected with conveying pipe 33, conveying pipe 33 one end communicates with air storage column 34, air storage column 34 one side is provided with sealing plate 37, rotating shaft 23 is also provided with adjusting mechanism 4;

[0034] Adjusting mechanism 4 includes second eccentric wheel 41 being fixed on rotating shaft 23, second eccentric wheel 41 is provided with connecting rod 42 inside, connecting rod 42 one end is provided with first connecting sleeve 43, first connecting sleeve 43 upper end is provided with fixing mechanism 45, detection box 1 is provided with second connecting sleeve 46, second connecting sleeve 46 is provided with fan 47 inside, fixing mechanism 45 is provided with rack 48.

[0035] Between using the device, through the opening on the box 1 will be detected into the non-woven fabric, by rotating the knob on both sides of the fixed mechanism 45, so that the fixed plate on one side of the fixed mechanism 45 moves along the thread, so that a group of fixed plates on the fixed mechanism 45 move inward, so as to fix the non-woven fabric, after completion, start the motor 21, so that the rotating shaft 23 rotates, the rotating shaft 23 rotates the rotating disc 25 at one end, the rotating disc 25 rotates a plurality of polishing rollers 26 on the rotating disc 25, the polishing roller 26 rotates the non-woven fabric on one side, which is convenient for detecting the wear resistance of the non-woven fabric, while the rotating shaft 23 rotates the first eccentric wheel 27, the first eccentric wheel 27 rotates the first movable column 28 in the first eccentric wheel 27 reciprocating movement, the first movable column 28 reciprocating movement drives the push rod 29 reciprocating movement, the push rod 29 reciprocating movement in the piston cylinder 31, so that the nitrogen in the air inlet pipe 32 enters the delivery pipe 33 and the detection box 1 respectively, the nitrogen in the delivery pipe 33 enters the storage column 34, inflates the storage column 34, so that the spring 35 is elongated, so as to drive the connecting column 36 to move, the connecting column 36 moves the sealing plate 37, so that the detection box 1 becomes airtight environment, at the same time, the gas in the air inlet pipe 32 enters the detection box 1 through the first connecting block 38, because the density of nitrogen is less than that of air, the air in the detection box 1 is discharged from the opening on the detection box 1, to avoid the influence of the air in the detection box 1 on the wear resistance detection of the textile.

[0036] At the same time, the second eccentric wheel 41 moves the second movable column 421, the second movable column 421 moves the connecting rod 42 reciprocating movement, the connecting rod 42 reciprocating movement drives the first connecting sleeve 43 reciprocating movement, the first connecting sleeve 43 reciprocating movement drives the non-woven fabric product in the first connecting sleeve 43 reciprocating movement, and a plurality of polishing rollers 26 on the rotating disc 25 are extruded to different degrees, so as to simulate the stretching force of the textile in daily life when used to different degrees, so as to obtain more precise non-woven fabric wear resistance data.

[0037] Meanwhile, the first connecting sleeve 43 moves reciprocatingly to drive the fixing mechanism 45 to move reciprocatingly, the fixing mechanism 45 moves to drive the second connecting block 410 to move, the second connecting block 410 moves to drive the rack 48 to move, the rack 48 moves to drive the gear 49 on one side to rotate, the gear 49 rotates to drive the fan 47 to rotate, the fan 47 rotates to speed up the air in the detection box 1 to be discharged to the outside, reduce the air content in the detection box 1, ensure the accuracy of the experimental results, and when the first eccentric wheel 27 moves to make the detection box 1 become a closed environment, the fan 47 rotates to make the heat generated when the non-woven fabric is rubbed to be quickly transferred and dissipated, thereby reducing the influence of the heat generated by rubbing on the wear resistance detection of the non-woven fabric.

[0038] The rotating shaft 23 rotates to drive the polishing roller 26 to rotate to rub the non-woven fabric, and the rotating shaft 23 rotates to drive the first eccentric wheel 27 to rotate, the first eccentric wheel 27 rotates to drive the first movable column 28 to move reciprocatingly to inflate the conveying pipe 33 and the detection box 1, the conveying pipe 33 is inflated to make the first eccentric wheel 27 move to make the detection box 1 become a closed environment, the detection box 1 is inflated to make the wear resistance experiment of the non-woven fabric more accurate, and the rotating shaft 23 rotates to drive the second eccentric wheel 41 to rotate, the second eccentric wheel 41 rotates to make the non-woven fabric in the first connecting sleeve 43 move reciprocatingly to form different degrees of extrusion with the rotating disc 25, thereby simulating the rubbing situation of the non-woven fabric in daily life, and the first connecting sleeve 43 moves to drive the fixing mechanism 45 to move, thereby driving the fan 47 to rotate, the air in the detection box 1 is quickly discharged, and the heat generated by rubbing is dispersed, thereby avoiding affecting the detection.

[0039] In an optional embodiment, a motor 21 is arranged on one side of the detection box 1, a support seat 22 is arranged on the motor 21, and an output end of the support seat 22 is connected with the rotating shaft 23.

[0040] It should be noted that the motor 21 drives the rotating shaft 23 to rotate, and the support seat 22 fixes the motor 21.

[0041] In an optional embodiment, a rotating disc 25 is arranged on one side of the rotating shaft 23, the rotating disc 25 is connected with a plurality of polishing rollers 26, and the plurality of polishing rollers 26 are designed to be detachable.

[0042] It should be noted that the rotating shaft 23 rotates to drive the rotating disc 25 to rotate, the rotating disc 25 rotates to drive the polishing roller 26 to rotate, the polishing roller 26 rotates to rub the non-woven fabric, and the polishing roller 26 is detached to control the frequency of rubbing, thereby performing different experiments.

[0043] In an optional embodiment, a push rod 29 is arranged on the first movable column 28, and one end of the push rod 29 is inserted into the piston cylinder 31.

[0044] It should be noted that the first movable column 28 reciprocatingly moves to drive the push rod 29 to reciprocate, so as to inflate the detection box 1 and the conveying pipe 33 through the first connecting block 38, and the nitrogen gas entering the air inlet pipe 32 is conveyed through the reciprocating movement of the push rod 29 in the piston cylinder 31.

[0045] In an optional embodiment, one end of the air inlet pipe 32 is communicated with the detection box 1, the spring 35 is arranged in the air storage column 34, one end of the air storage column 34 is fixedly connected with the detection box 1, one end of the spring 35 is provided with the connecting column 36, and one end of the connecting column 36 is inserted into the air storage column 34.

[0046] It should be noted that the nitrogen gas is conveyed into the air storage column 34, so that the air pressure in the air storage column 34 is increased, the connecting column 36 is moved to drive the spring 35 to be elongated, the sealing plate 37 is moved, the detection box 1 becomes a closed environment, and the accuracy of detection is ensured.

[0047] In an optional embodiment, one end of the connecting column 36 is connected with the sealing plate 37, the detection box 1 is provided with an opening, the detection box 1 is provided with a first groove, and the size of the first groove is matched with the sealing plate 37.

[0048] It should be noted that the connecting column 36 drives the sealing plate 37 to move to make the detection box 1 become a closed environment, the first groove arranged on the detection box 1 enables the sealing plate 37 to move in the groove, the sealing plate 37 is prevented from being separated from the groove during movement, and the sealing effect of the device is ensured.

[0049] In an optional embodiment, the second eccentric wheel 41 is internally provided with a second movable column 421, and the second movable column 421 is connected with the connecting rod 42.

[0050] It should be noted that the rotation of the rotating shaft 23 drives the rotation of the second eccentric wheel 41, the rotation of the second eccentric wheel 41 drives the rotation of the second movable column 421, and the rotation of the second movable column 421 drives the reciprocating movement of the connecting rod 42, so as to drive the non-woven fabric to reciprocate.

[0051] In an optional embodiment, the fan 47 is provided with a gear 49 at one end, and the gear 49 is engaged with the rack 48.

[0052] It should be noted that the reciprocating movement of the first connecting sleeve 43 drives the movement of the fixing mechanism 45, the movement of the fixing mechanism 45 drives the movement of the second connecting block 410, the movement of the second connecting block 410 drives the movement of the rack 48, and the movement of the rack 48 drives the rotation of the gear 49.

[0053] In an optional embodiment, the fixing mechanism 45 is provided with the second connecting block 410, and one end of the second connecting block 410 is connected with the rack 48.

[0054] It should be noted that the movement of the fixed mechanism 45 causes the second connecting block 410 to move, and the movement of the second connecting block 410 causes the rack 48 to move.

[0055] In an optional embodiment, the first connecting sleeve 43 is provided with a plurality of sets of limiting blocks 44, and the inside of the detection box 1 is provided with a plurality of sets of second grooves, the size of which is adapted to the limiting blocks 44.

[0056] It should be noted that when the first connecting sleeve 43 moves, it drives multiple sets of limiting blocks 44 to move inside multiple sets of second grooves inside the detection box 1, so that the first connecting sleeve 43 moves along the prescribed track, avoiding the first connecting sleeve 43 from deviating from the track and causing an impact.

[0057] Working principle: Before using this device, by rotating the knobs on both sides of the fixing mechanism 45, the fixing plate on one side of the fixing mechanism 45 moves along the thread, causing a set of fixing plates on the fixing mechanism 45 to move inward, thereby fixing the non-woven fabric. After completion, the motor 21 is started, causing the rotating shaft 23 to rotate. When the rotating shaft 23 rotates, it drives the turntable 25 at one end to rotate. The rotation of the turntable 25 drives the multiple sets of grinding rollers 26 on the turntable 25 to rotate. The grinding rollers 26 rotate and rub the non-woven fabric on one side, which facilitates the testing of the abrasion resistance of the non-woven fabric. At the same time, the rotation of the rotating shaft 23 drives the first eccentric wheel 27 to rotate. The rotation of the first eccentric wheel 27 drives the first movable column 28 to reciprocate inside the first eccentric wheel 27. The actuator drives the push rod 29 to reciprocate. The push rod 29 reciprocates inside the piston cylinder 31, causing the nitrogen in the air inlet pipe 32 to enter the delivery pipe 33 and the test chamber 1 through the first connecting block 38. The nitrogen entering the delivery pipe 33 enters the gas storage column 34 through the delivery pipe 33, inflating the gas storage column 34 and causing the spring 35 to extend, thereby driving the connecting column 36 to move. The movement of the connecting column 36 causes the sealing plate 37 to move, making the test chamber 1 a sealed environment. At the same time, the gas in the air inlet pipe 32 enters the test chamber 1 through the first connecting block 38. Since the density of nitrogen is less than that of air, the air inside the test chamber 1 is discharged from the opening on the test chamber 1, preventing the air inside the test chamber 1 from affecting the abrasion resistance test of the textiles.

[0058] Simultaneously, the movement of the second eccentric wheel 41 drives the movement of the second movable column 421, which in turn drives the connecting rod 42 to reciprocate. The reciprocating movement of the connecting rod 42 drives the first connecting sleeve 43 to reciprocate, which in turn drives the nonwoven fabric inside the first connecting sleeve 43 to reciprocate. This causes the nonwoven fabric to be squeezed to different degrees by multiple sets of grinding rollers 26 on the turntable 25, thereby simulating the tensile force of friction when textiles are used to different degrees in daily life, thus obtaining more precise data on the abrasion resistance of the nonwoven fabric.

[0059] Simultaneously, the first connecting sleeve 43 reciprocates, driving the fixing mechanism 45 to reciprocate. The movement of the fixing mechanism 45 drives the second connecting block 410 to move, which in turn drives the rack 48 to move. When the rack 48 moves, it drives the gear 49 on one side to rotate. The rotation of the gear 49 drives the fan 47 to rotate. The rotation of the fan 47 accelerates the exhaust of air from the inside of the test chamber 1 to the outside, reducing the air content inside the test chamber 1 and ensuring the accuracy of the experimental results. At the same time, when the first eccentric wheel 27 moves to make the inside of the test chamber 1 a sealed environment, the rotation of the fan 47 allows the heat generated by the friction of the nonwoven fabric to be quickly transferred and dissipated, reducing the impact of the heat generated by friction on the abrasion resistance test of the nonwoven fabric.

[0060] By disassembling the grinding roller 26 to control the frequency of friction, different experiments can be conducted. The first groove on the test box 1 allows the sealing plate 37 to move inside the groove, ensuring that the sealing plate 37 will not detach when it moves, while ensuring the sealing effect of the device. When the first connecting sleeve 43 moves, it drives multiple sets of limiting blocks 44 to move inside multiple sets of second grooves inside the test box 1, so that the first connecting sleeve 43 moves along the prescribed track, avoiding the first connecting sleeve 43 from detaching from the track and causing an impact.

[0061] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for testing the abrasion resistance of textiles, comprising a testing chamber (1), characterized in that, A friction mechanism (2) is provided on one side of the detection box (1); The friction mechanism (2) includes a rotating shaft (23) that rotates inside the detection box (1). Multiple sets of grinding rollers (26) are arranged on the outside of the rotating shaft (23). One end of the rotating shaft (23) passes through the detection box (1) and is connected to a first eccentric wheel (27). A first movable column (28) is arranged on the first eccentric wheel (27). An inflation mechanism (3) is arranged at the upper end of the first movable column (28). The inflation mechanism (3) includes a piston cylinder (31) disposed at the upper end of the first movable column (28), a first connecting block (38) disposed at the upper end of the piston cylinder (31), an air inlet pipe (32) passing through the inside of the first connecting block (38), a delivery pipe (33) connected to the upper end of the first connecting block (38), one end of the delivery pipe (33) being connected to the air storage column (34), a sealing plate (37) disposed on one side of the air storage column (34), and an adjustment mechanism (4) disposed on the rotating shaft (23). The adjustment mechanism (4) includes a second eccentric wheel (41) fixed on the rotating shaft (23), a connecting rod (42) is provided inside the second eccentric wheel (41), a first connecting sleeve (43) is provided at one end of the connecting rod (42), a fixing mechanism (45) is provided at the upper end of the first connecting sleeve (43), a second connecting sleeve (46) is provided on the detection box (1), a fan (47) is provided inside the second connecting sleeve (46), and a rack (48) is provided on the fixing mechanism (45).

2. The textile abrasion resistance testing device according to claim 1, characterized in that, A motor (21) is provided on one side of the detection box (1), and a support base (22) is provided on the motor (21). The output end of the support base (22) is connected to the rotating shaft (23).

3. The textile abrasion resistance testing device according to claim 1, characterized in that, A turntable (25) is provided on one side of the rotating shaft (23). The turntable (25) is connected to multiple sets of grinding rollers (26), and the multiple sets of grinding rollers (26) are designed to be detachable.

4. The textile abrasion resistance testing device according to claim 1, characterized in that, A push rod (29) is provided on the first movable column (28), and one end of the push rod (29) is inserted into the piston cylinder (31).

5. The textile abrasion resistance testing device according to claim 1, characterized in that, One end of the air inlet pipe (32) is connected to the detection box (1). A spring (35) is installed inside the air storage column (34). One end of the air storage column (34) is fixedly connected to the detection box (1). A connecting column (36) is installed at one end of the spring (35). One end of the connecting column (36) is inserted into the air storage column (34).

6. The textile abrasion resistance testing device according to claim 5, characterized in that, One end of the connecting column (36) is connected to the sealing plate (37). The detection box (1) is provided with an opening and a first groove is provided on the detection box (1). The size of the first groove is adapted to the sealing plate (37).

7. The textile abrasion resistance testing device according to claim 1, characterized in that, The second eccentric wheel (41) has a second movable column (421) inside, and the second movable column (421) is connected to the connecting rod (42).

8. The textile abrasion resistance testing device according to claim 1, characterized in that, The fan (47) has a gear (49) at one end, which meshes with the rack (48).

9. The textile abrasion resistance testing device according to claim 1, characterized in that, The fixing mechanism (45) is provided with a second connecting block (410), one end of which is connected to the rack (48).

10. The textile abrasion resistance testing device according to claim 1, characterized in that, The first connecting sleeve (43) is provided with multiple sets of limiting blocks (44), and the inside of the detection box (1) is provided with multiple sets of second grooves, the size of which is adapted to the limiting blocks (44).

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