A tensile testing device for pull-up pants

Abstract

The present invention discloses a pull-up pants tensile test device, comprising a base, a human model is installed on the base, the human model is divided into a plurality of model units along the axis circumferentially, a driving mechanism is installed on the base for driving the model unit to move circumferentially, the model unit comprises at least two positioning blocks and at least two groups of support blocks, a limiting plate for the positioning block to abut against is installed on the base, and a pressure sensor is installed on the surface of the support block. When it is necessary to drive the support block and the positioning block to move, the air pump is turned on to inflate the lower chamber until the positioning block drives the waistline of the pull-up pants to abut against the limiting plate, at which time the air pump continues to inflate, the regulating valve is pushed open, so that the lower chamber is connected to the upper chamber, so that the second cylinder connected to the upper chamber is gradually extended, so as to push the support block to move in the direction away from the support column, so as to open the waistline of the pull-up pants. Because the pressure sensor is installed on the support block, the pressure value at the time of tearing is detected.

Description

Technical Field

[0001] The present invention relates to the technical field of pull-up pants, and in particular to a pull-up pants tensile resistance detection device. Background Art

[0002] Pull-on pants are a type of disposable diapers with absorbent function. Their structure is more like small underwear or shorts. They are worn as a whole and are mainly used as a transition from diapers to ordinary underwear. They are easy to carry and wear.

[0003] In the production process of pull-up pants, the waistline is formed by overlapping the two sides, then pressing the overlapping edges with an ultrasonic welding device, and then cutting, so as to form the waistline of each product. However, the pressed waistline is an adhesive body, which is easier to break apart than other integral parts when subjected to excessive force. Therefore, before pull-up pants are produced and put into sale, they need to be tested for tensile properties.

[0004] When testing the waistline of pull-up pants, since there are two pressed parts of pull-up pants, which correspond to the two waist holes of the human body, it is necessary to perform tensile tests on both waistline pressed parts. However, during the testing process, it is often easy for the waistline pressed part on one side to break, and the tightness of the entire waistline is greatly reduced, making it difficult to test the tensile performance of the waistline pressed part on the other side. Summary of the invention

[0005] In order to solve at least one of the technical problems mentioned in the background technology, the purpose of the present invention is to provide a tensile strength detection device for pull-up pants, which is convenient for detecting the tensile strength of two pressed parts of the waist of the pull-up pants.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a pull-up pants tensile resistance detection device, comprising a base, a human body model is installed on the base, the human body model is circumferentially divided into a plurality of model units along the axis, a driving mechanism for driving the model unit to move circumferentially is installed on the base, the model unit comprises at least two positioning blocks and at least two groups of support blocks, the support blocks are located at the pressing part of the pull-up pants waist, the positioning blocks are located at the abdomen and back of the pull-up pants waist, a limiting plate for the positioning blocks to abut is installed on the base, and a pressure sensor is installed on the surface of the support block;

[0007] The driving mechanism includes a support column fixedly mounted on the base, a first cylinder fixedly mounted between the positioning block and the support column, a second cylinder fixedly mounted between the support block and the support column, a chamber is opened in the support column, a regulating valve is arranged in the chamber, the regulating valve divides the chamber into an upper chamber and a lower chamber, the upper chamber is connected to the second cylinder, the lower chamber is connected to the first cylinder, an air pump connected to the lower chamber is installed on the base, and when the positioning block abuts against the limit plate, the regulating valve opens, and the first cylinder is connected to the second cylinder.

[0008] The regulating valve includes a closing block fixedly mounted on the inner wall of the chamber, the closing block is provided with a through hole connecting the lower chamber and the upper chamber, a piston is slidably arranged in the through hole, a positioning frame is fixedly mounted on the upper side of the closing block, a through hole is provided in the middle of the positioning frame, a guide rod is slidably arranged in the through hole, the lower side of the guide rod is fixedly connected to the piston, a third spring is fixedly mounted between the positioning frame and the piston, and when the piston moves out of the through hole, the upper chamber is connected to the lower chamber.

[0009] Two sealing air nozzles are installed on the support column, and the two sealing air nozzles are communicated with the upper chamber and the lower chamber respectively.

[0010] A first spring is installed between the positioning block and the supporting column, and a second spring is installed between the supporting block and the supporting column.

[0011] The second cylinder includes a cover shell fixedly connected to the support column, a moving rod is slidably arranged in the cover shell, a socket for the moving rod to pass through is opened on one side of the cover shell, one side of the moving rod is fixedly connected to the support block, a sealing disk is fixedly installed on the side of the moving rod away from the support block, the cover shell and the side of the sealing disk close to the support column are connected to the upper chamber, a buffer hole is opened on the cover shell, and the buffer hole is located on the side of the sealing disk close to the support block.

[0012] A friction plate is fixedly mounted on one side of the positioning block close to the limiting plate.

[0013] The model unit also includes a Y-shaped block, the positioning block and the support block are circumferentially distributed on the lower side of the Y-shaped block, the two positioning blocks and the two groups of support blocks are staggered, and the top of the support column is fixedly connected to the lower side of the Y-shaped block.

[0014] There are two support blocks in each group, which are respectively located on both sides of the pressed part of the waist of the pull-up pants, and the support blocks are arc-shaped.

[0015] The opposing surfaces of the positioning block and the limiting plate are both arc surfaces.

[0016] Compared with the prior art, the beneficial effect of the present invention is: when it is necessary to drive the support block and the positioning block to move, the air pump is turned on to inflate the lower chamber until the positioning block drives the waistline part of the pull-up pants to abut against the limit plate. At this time, the positioning block can no longer move, and thus the first cylinder can no longer extend. At this time, the air pump continues to inflate, and the regulating valve is pushed open, so that the lower chamber is connected to the upper chamber, and the pressure in the upper chamber gradually increases, causing the second cylinder connected to the upper chamber to gradually extend, thereby pushing the support block to move away from the support column, thereby stretching the waistline of the pull-up pants. The pressed part, as the second cylinder moves, the waistline of the pull-up pants begins to tighten until it is finally torn. Because a pressure sensor is installed on the support block, the pressure value at the time of tearing can be detected. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 It is a front view of the overall structure of the present invention;

[0019] Figure 3 This is a first variation diagram of the human body model of the present invention;

[0020] Figure 4 is a second variation diagram of the human body model of the present invention;

[0021] Figure 5 A cross-sectional view of a human body model and a driving mechanism of the present invention;

[0022] Figure 6 A top view of the human body model and the driving mechanism of the present invention;

[0023] Figure 7 is a cross-sectional view of a second cylinder of the present invention;

[0024] Figure 8 For the present invention Figure 5 A partial enlarged schematic diagram of the structure at point A in the middle.

[0025] In the figure: 1, base; 2, human body model; 21, positioning block; 22, support block; 23, Y-shaped block; 3, driving mechanism; 31, support column; 32, first cylinder; 33, second cylinder; 331, cover; 332, moving rod; 333, jack; 334, sealing disk; 335, buffer hole; 34, chamber; 341, upper chamber, 342, lower chamber; 35, regulating valve; 351, closing block; 352, through hole; 353, piston; 354, positioning frame; 355, perforation; 356, guide rod; 357, third spring; 36, air pump; 4, limit plate; 5, pressure sensor; 6, sealing air nozzle; 7, first spring; 8, second spring; 9, friction plate. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] Example 1

[0028] See also Figure 1 and Figure 2 The present embodiment provides a pull-up pants tensile test device, comprising a base 1, a human body model 2 is mounted on the base 1, the human body model 2 is divided into a plurality of model units along the axis circumferentially, and a driving mechanism 3 for driving the model units to move circumferentially is mounted on the base 1. The human body model 2 can be manufactured by 3D printing technology or conventional mechanical processing.

[0029] When it is necessary to perform a tensile test on the pull-up pants, the pull-up pants are first put on the human body model 2, and then the driving mechanism 3 is used to drive the various model units on the human body model 2 to move circumferentially, so that each model unit is tightly attached to the inside of the pull-up pants, and as the model units continue to move, the pull-up pants are stretched open, thereby performing a tensile test on the pull-up pants.

[0030] During the production process of pull-up pants, the waistline is overlapped on both sides, and then the overlapping edges are pressed together by an ultrasonic welding device, and then cut off to form the waistline of each product. However, the pressed waistline is an adhesive body, which is more likely to break apart than other integral parts when subjected to excessive force. Therefore, the stretch test of pull-up pants is to test the pressed waistline of pull-up pants.

[0031] However, when testing the waistline of pull-up pants, since there are two pressed parts of pull-up pants, which correspond to the two waist holes of the human body, it is necessary to perform tensile tests on both waistline pressed parts. However, during the testing process, it is often easy for the waistline pressed part on one side to break, and the tightness of the entire waistline is greatly reduced, making it difficult to test the tensile performance of the waistline pressed part on the other side.

[0032] See also Figure 1 and Figure 3, in order to solve the above technical problems. The specific model unit includes a Y-shaped block 23, two positioning blocks 21 and two groups of support blocks 22, the positioning blocks 21 and the support blocks 22 are circumferentially distributed on the lower side of the Y-shaped block 23, the two positioning blocks 21 and the two groups of support blocks 22 are staggered, the two groups of support blocks 22 are respectively located at the pressing part of the pull-up pants waist, each group of support blocks 22 has two, respectively located on both sides of the pressing part of the pull-up pants waist, the support blocks 22 are arc-shaped, the two positioning blocks 21 are respectively located at the abdomen or back of the pull-up pants waist, that is, one of the positioning blocks 21 is located at the abdomen of the pull-up pants waist, and the other positioning block 21 is located at the back of the pull-up pants waist, a limiting plate 4 for the positioning block 21 to abut is installed on the base 1, and a pressure sensor 5 is installed on the surface of the support block 22.

[0033] The facing surfaces of the positioning block 21 and the limiting plate 4 are both arcuate surfaces, thereby reducing the compression of the pull-up pants waistline and causing damage to the pull-up pants waistline. At the same time, the arcuate surface can increase the contact area with the pull-up pants waistline.

[0034] The pull-up pants are put on the human body model 2, and the driving mechanism 3 first drives the two positioning blocks 21 to move, that is, the two positioning blocks 21 first stretch the waistline of the pull-up pants at the abdomen and the back. After the positioning blocks 21 drive the waistline of the pull-up pants to abut against the limiting plate 4, the positioning blocks 21 stop moving, so that the waistline of the pull-up pants is first stretched by the positioning blocks 21, and then the waistline of the abdomen and the back of the pull-up pants are fixed by the positioning blocks 21 and the limiting plate 4. Then the driving mechanism 3 drives the support blocks 22 to stretch and expand the pressed parts of the pull-up pants waistline. When one of the pressed parts of the pull-up pants waistline is broken, because the abdomen and the back of the pull-up pants waistline are locked by the positioning blocks 21 and the limiting plate 4, the other pressed part of the pull-up pants waistline is still in a tight state, thereby facilitating the compression test of the two pressed parts of the pull-up pants waistline. When the support block 22 is in contact with the pull-up pants, the pressure sensor 5 on its surface will detect the pressure value borne by the current position of the pull-up pants.

[0035] See also Figure 3-Figure 5 The driving mechanism 3 includes a supporting column 31 fixedly mounted on the base 1, the top of the supporting column 31 is fixedly connected to the lower side of the Y-shaped block 23, a first cylinder 32 is fixedly mounted between the positioning block 21 and the supporting column 31, a second cylinder 33 is fixedly mounted between the supporting block 22 and the supporting column 31, a chamber 34 is opened in the supporting column 31, a regulating valve 35 is arranged in the chamber 34, the regulating valve 35 divides the chamber 34 into an upper chamber 341 and a lower chamber 342, the upper chamber 341 is connected to the second cylinder 33 through a pipe fitting, and the lower chamber 342 is connected to the first cylinder 32 through a pipe fitting, an air pump 36 connected to the lower chamber 342 is installed on the base 1, when the positioning block 21 abuts against the limiting plate 4, the regulating valve 35 is opened, and the first cylinder 32 is connected to the second cylinder 33.

[0036] When it is necessary to drive the support block 22 and the positioning block 21 to move, the air pump 36 is turned on to inflate the lower chamber 342, and the pressure in the lower chamber 342 increases. At the same time, because the first cylinder 32 is connected to the lower chamber 342, as the air pump 36 is inflated, the first cylinder 32 gradually extends, thereby driving the positioning block 21 to move in the direction of the limiting plate 4, until the positioning block 21 drives the waistline part of the pull-up pants to abut against the limiting plate 4. At this time, the positioning block 21 can no longer move, and the first cylinder 32 can no longer extend. At this time, the air pump 36 continues to inflate, and the pressure in the lower chamber 342 continues to increase. When the pressure After reaching the preset value, the interaction force between the positioning block 21 and the limit plate 4 also reaches the maximum, and the regulating valve 35 is pushed open, so that the lower chamber 342 is connected to the upper chamber 341, and the pressure in the upper chamber 341 gradually increases, so that the second cylinder 33 connected to the upper chamber 341 gradually stretches, thereby pushing the support block 22 to move away from the support column 31, thereby stretching the waistline of the pull-up pants. The pressed part of the waistline of the pull-up pants begins to tighten until it is finally torn because a pressure sensor is installed on the support block 22 to detect the pressure value during tearing.

[0037] See also Figure 5 , Figure 6 and Figure 8 The regulating valve 35 includes a closing block 351 fixedly mounted on the inner wall of the chamber 34, a through hole 352 connecting the lower chamber 342 and the upper chamber 341 is formed on the closing block 351, a piston 353 is slidably arranged in the through hole 352, a positioning frame 354 is fixedly mounted on the upper side of the closing block 351, a through hole 355 is formed in the middle of the positioning frame 354, a guide rod 356 is slidably arranged in the through hole 355, the lower side of the guide rod 356 is fixedly connected to the piston 353, a third spring 357 is fixedly mounted between the positioning frame 354 and the piston 353, and when the piston 353 moves out of the through hole 352, the upper chamber 341 is communicated with the lower chamber 342.

[0038] When the pressure in the lower chamber 342 gradually increases, the piston 353 will be forced to gradually move upward, thereby compressing the third spring 357. The elastic potential energy is accumulated inside the third spring 357. When the positioning block 21 contacts the limit plate 4, as the air pump 36 continues to inflate, the pressure in the lower chamber 342 will quickly reach a preset value, that is, the pressure is strong enough to push the piston 353 away from the through hole 352. At this time, the through hole 352 connects the lower chamber 342 with the upper chamber 341, and the pressure in the lower chamber 342 When the pressure is lowered, the piston 353 will re-block the through hole 352 under the elastic force of the third spring 357, thereby ensuring that the lower chamber 342 maintains a stable pressure, that is, first ensuring the continuous thrust of the first cylinder 32 on the positioning block 21, so that the clamping force of the positioning block 21 and the limiting plate 4 on the pull-up pants waistline is stable, and at the same time, the positioning block 21 and the limiting plate 4 are first fixed to the abdominal and back parts of the pull-up pants waistline, and then the tensile test is performed on the pressing part of the pull-up pants waistline.

[0039] See also Figure 5 Two sealing air nozzles 6 are installed on the support column 31, and the two sealing air nozzles 6 are connected to the upper chamber 341 and the lower chamber 342 respectively.

[0040] After the tensile performance test of the pull-up pants waist is completed, the sealing air nozzle 6 is opened to release the gas in the upper chamber 341 and the lower chamber 342, so that the first cylinder 32 and the second cylinder 33 can drive the support block 22 and the positioning block 21 to move to the initial position.

[0041] See also Figure 4 and Figure 5 A first spring 7 is installed between the positioning block 21 and the support column 31, and a second spring 8 is installed between the support block 22 and the support column 31. When the positioning block 21 and the support block 22 move away from the support column 31, the first spring 7 and the second spring 8 begin to stretch, and elastic potential energy is accumulated inside. When the two sealing air nozzles 6 are opened, the positioning block 21 and the support block 22 begin to perform a reset operation under the elastic force of the first spring 7 and the second spring 8.

[0042] See also Figure 5 and Figure 7After the air pump 36 inflates the first chamber 34 to reach a preset pressure, it enters the second chamber 34, so that the initial air pressure in the second chamber 34 is relatively high. It is easy for the second cylinder 33 to move quickly due to the high air pressure, and quickly collapse the waistline pressing part of the pull-up pants, making it difficult to measure the ultimate tensile strength of the waistline pressing part of the pull-up pants. In order to solve the above technical problems. The second cylinder 33 includes a cover 331 fixedly connected to the support column 31, a moving rod 332 is slidably arranged in the cover 331, a jack 333 for the moving rod 332 to pass through is provided on one side of the cover 331, one side of the moving rod 332 is fixedly connected to the support block 22, and a sealing disk 334 is fixedly installed on the side of the moving rod 332 away from the support block 22, and the cover 331 and the side of the sealing disk 334 close to the support column 31 are connected to the upper chamber 341, and a buffer hole 335 is provided on the cover 331, and the buffer hole 335 is located on the side of the sealing disk 334 close to the support block 22.

[0043] In the upper chamber 341, the cover shell 331 is inflated, so that the air pressure pushes the sealing disk 334 and the moving rod 332 to move away from the support column 31. When the inflation volume is too large and the pressure in the cover shell 331 is relatively high, the sealing disk 334 tends to move quickly, but when the sealing disk 334 moves, it squeezes the space between the sealing disk 334 and the support block 22 in the cover shell 331. However, since the buffer hole 335 is relatively small, the gas leakage between the sealing disk 334 and the support block 22 in the cover shell 331 is slow, so that the sealing disk 334 cannot move quickly, thereby delaying the moving speed of the sealing disk 334, allowing the sealing disk 334 to maintain a uniform speed, and then gradually expanding the pressing part of the pull-up pants waistline, so that the tensile performance measurement of the pressing part of the pull-up pants waistline is more accurate, while ensuring the pressure stability in the chamber 34.

[0044] See also Figure 2 The positioning block 21 is fixedly provided with a friction plate 9 near one side of the limiting plate 4. By means of the friction plate 9, when the positioning block 21 and the limiting plate 4 are fixed to the waist circumference of the pull-up pants, the limiting of the waist circumference is increased.

[0045] Example 2

[0046] See also Figure 1 and Figure 2 The present embodiment provides a pull-up pants tensile test device, comprising a base 1, a human body model 2 is mounted on the base 1, the human body model 2 is divided into a plurality of model units along the axis circumferentially, and a driving mechanism 3 for driving the model units to move circumferentially is mounted on the base 1. The human body model 2 can be manufactured by 3D printing technology or conventional mechanical processing.

[0047] When it is necessary to perform a tensile test on the pull-up pants, the pull-up pants are first put on the human body model 2, and then the driving mechanism 3 drives the various model units on the human body model 2 to move circumferentially, so that each model unit is in close contact with the corresponding part of the pull-up pants, and as the model units continue to move, the pull-up pants are stretched open, thereby performing a tensile test on the pull-up pants.

[0048] The specific model unit includes a Y-shaped block 23, two positioning blocks 21 and two groups of support blocks 22. The positioning block 21 and the support block 22 are circumferentially distributed on the lower side of the Y-shaped block 23. The two positioning blocks 21 and the two groups of support blocks 22 are staggered. The two groups of support blocks 22 are respectively located at the pressing part of the pull-up pants waist. There are two support blocks 22 in each group, which are respectively located on both sides of the pressing part of the pull-up pants waist. The support blocks 22 are arc-shaped. The two positioning blocks 21 are respectively located at the abdomen or back of the pull-up pants waist, that is, one of the positioning blocks 21 is located at the abdomen of the pull-up pants waist, and the other positioning block 21 is located at the back of the pull-up pants waist. A pressure sensor 5 is installed on the surface of the support block 22.

[0049] The pull-up pants are put on the human body model 2, and the driving mechanism 3 drives the two positioning blocks 21 and the two groups of supporting blocks 22 to move, so that the pressing part of the pull-up pants waist is in a tight state, thereby facilitating the compression test of the pressing part of the pull-up pants waist. When the supporting block 22 is in contact with the pull-up pants, the pressure sensor 5 on its surface will detect the pressure value of the pull-up pants at the current position. With the movement of the driving mechanism 3, the waistline of the pull-up pants is gradually expanded, and finally the waistline of the pull-up pants is expanded and cracked, completing the detection work.

[0050] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

Claims

1. A pull-on pants tensile test device, comprising a base (1), a human body model (2) mounted on the base (1), the human body model (2) being divided into a plurality of model units along an axis in a circumferential direction, a driving mechanism (3) for driving the model units to move circumferentially mounted on the base (1), characterized in that: The model unit comprises at least two positioning blocks (21) and at least two groups of supporting blocks (22), wherein the supporting blocks (22) are located at the pressing position of the pull-up pants waist, and the positioning blocks (21) are located at the abdomen and back of the pull-up pants waist. A limiting plate (4) for the positioning blocks (21) to abut is installed on the base (1), and a pressure sensor (5) is installed on the surface of the supporting block (22); The driving mechanism (3) comprises a support column (31) fixedly mounted on the base (1); a first cylinder (32) fixedly mounted between the positioning block (21) and the support column (31); a second cylinder (33) fixedly mounted between the positioning block (22) and the support column (31); a chamber (34) is provided in the support column (31); a regulating valve (35) is provided in the chamber (34); the regulating valve (35) divides the chamber (34) into an upper chamber (341) and a lower chamber (342); the upper chamber (341) is in communication with the second cylinder (33); the lower chamber (342) is in communication with the first cylinder (32); an air pump (36) in communication with the lower chamber (342) is mounted on the base (1); when the positioning block (21) abuts against the limit plate (4), the regulating valve (35) opens, and the first cylinder (32) is in communication with the second cylinder (33).

2. The pull-on pants tensile testing device according to claim 1, characterized in that: The regulating valve (35) comprises a closing block (351) fixedly mounted on the inner wall of the chamber (34); a through hole (352) communicating the lower chamber (342) with the upper chamber (341) is formed on the closing block (351); a piston (353) is slidably disposed in the through hole (352); a positioning frame (354) is fixedly mounted on the upper side of the closing block (351); a through hole (355) is formed in the middle of the positioning frame (354); a guide rod (356) is slidably disposed in the through hole (355); the lower side of the guide rod (356) is fixedly connected to the piston (353); a third spring (357) is fixedly mounted between the positioning frame (354) and the piston (353); when the piston (353) moves out of the through hole (352), the upper chamber (341) communicates with the lower chamber (342).

3. The pull-on pants tensile testing device according to claim 1, characterized in that: Two sealing air nozzles (6) are installed on the support column (31), and the two sealing air nozzles (6) are respectively connected to the upper chamber (341) and the lower chamber (342).

4. The pull-on pants tensile testing device according to claim 3, characterized in that: A first spring (7) is installed between the positioning block (21) and the support column (31), and a second spring (8) is installed between the support block (22) and the support column (31).

5. The pull-on pants tensile testing device according to claim 1, characterized in that: The second cylinder (33) comprises a cover shell (331) fixedly connected to the support column (31), a moving rod (332) being slidably arranged in the cover shell (331), a plug hole (333) for the moving rod (332) to pass through is provided on one side of the cover shell (331), one side of the moving rod (332) is fixedly connected to the support block (22), a sealing disk (334) is fixedly installed on the side of the moving rod (332) away from the support block (22), the cover shell (331) and the side of the sealing disk (334) close to the support column (31) are connected to the upper chamber (341), and a buffer hole (335) is provided on the cover shell (331), and the buffer hole (335) is located on the side of the sealing disk (334) close to the support block (22).

6. The pull-on pants tensile testing device according to claim 1, characterized in that: A friction plate (9) is fixedly mounted on one side of the positioning block (21) close to the limiting plate (4).

7. The pull-on pants tensile testing device according to claim 1, characterized in that: The model unit further comprises a Y-shaped block (23), the positioning block (21) and the supporting block (22) are circumferentially distributed on the lower side of the Y-shaped block (23), the two positioning blocks (21) and the two groups of supporting blocks (22) are staggeredly distributed, and the top of the supporting column (31) is fixedly connected to the lower side of the Y-shaped block (23).

8. The pull-on pants tensile testing device according to claim 1, characterized in that: Each group of the support blocks (22) has two support blocks (22), which are respectively located on both sides of the waistline of the pull-up pants, and the support blocks (22) are arc-shaped.

9. The pull-on pants tensile testing device according to claim 1, characterized in that: The opposing surfaces of the positioning block (21) and the limiting plate (4) are both arc surfaces.

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