Arm double joint bending sleeve durability tester

Abstract

The arm double joint bending sleeve durability tester of the present invention belongs to a double joint bending durability tester for both hands under the condition of repeated bending of sleeves. The top of a longitudinal support rod is fixedly connected to the top of a large diameter short tube, and arm-simulating connecting rods are rotatably connected on opposite sides of the longitudinal support rod, and a "T"-shaped sliding part is sleeved outside the longitudinal support rod. Inside the large diameter short tube, the top cover of the "T"-shaped sliding part is located above the end of the humerus; outside the large diameter short tube, a downward pressure plate is provided at the lower end of the middle tube, and a circulating downward pressure plate is provided on the rotating shaft of the motor. In the rotating state, the circulating downward pressure plate intermittently contacts the downward pressure plate. Advantages: It can simulate the shoulder joints and elbow joints of both arms of a person to bend up and down at the same time, and can be used as a human bionic double joint bending double joint bending clothing seam durability tester to achieve the purpose of using human bionic movement to test the quality of clothing.

Description

Technical Field

[0001] The invention belongs to the technical field of textile clothing quality detection, and particularly relates to a bending durability detection instrument for sleeve seams under the condition of repeated arm bending movements. Background Art

[0002] At present, the strength test of textile seams requires cutting clothes, applying linear or vertical stretching to the seams of the cut samples through a linear tensile machine until the seams are damaged, and recording the tensile force to determine whether the seam strength of the sample is qualified. This method cannot fully reflect the destructive effect of the human body on the seams when wearing clothes, and cannot correctly reflect the quality of the bionic use of textile seams. Summary of the invention

[0003] The present invention provides an arm double-joint bending sleeve durability tester which can dynamically imitate the destructive effect of bending the shoulder and elbow joints of a human arm on the sleeve seam. The instrument of the present invention can be used to evaluate the seam quality of the sleeve seams at the shoulder and elbow joints in a bionic motion manner, and the test can be directly performed without cutting the clothes or other processing. The test result is closer to the actual use effect of the clothes by people.

[0004] The concept of the present invention is: to use a cover plate with reciprocating linear motion to drive the bending and displacement of the humeral end of the simulated humeral rod, that is, to simulate the bending of the human shoulder joint, and to use the bending displacement of the humeral end when the shoulder joint is bent to change the path of the pulling line between the humeral end and the simulated ulna and radius ends, so that the simulated ulna and radius rods are bent and rotated along with the simulated humeral rod, thereby realizing the double-joint bionic bending movement of the elbow joint driven by the bending of the shoulder joint, which can be used as a sports instrument to evaluate the seam quality at the seam of the sleeve.

[0005] The structure of the present invention is:

[0006] The arm double joint bending sleeve durability tester comprises a base 1, a longitudinal support rod 2, a large diameter short tube 3 and a motor 4, wherein the bottom of the longitudinal support rod 2 is fixedly connected to the base 1, and the top of the longitudinal support rod 2 is fixedly connected to the top of the large diameter short tube 3, and the base 1 is provided with a motor 4, characterized in that: two positions below the large diameter short tube 3 on opposite sides of the longitudinal support rod 2 are rotatably connected with an imitation arm connecting rod 5, a "T"-shaped sliding member 6 is sleeved outside the longitudinal support rod 2, and the middle tube 7 of the "T"-shaped sliding member 6 is slidably sleeved outside the longitudinal support rod 2, and the top cover plate 8 of the "T"-shaped sliding member 6 is located inside the large diameter short tube 3, and the top cover plate 8 is in contact with the top of the imitation arm connecting rod 5;

[0007] The imitation arm connecting rod 5 comprises an imitation humerus rod 10 and an imitation ulna and radius rod 9 which are rotatably connected to each other. At a position near the humeral end 12, the imitation humeral rod 10 is rotatably connected to the lower part of the large diameter short tube 3, and the rotation connection point is the brachial canal rotation connection point 16, so that the humeral end 12 of the imitation humeral rod 10 is located in the large diameter short tube 3; a threading loop 11 is provided at the rotation connection position of the imitation humeral rod 10 or the imitation ulna and radius rod 9; a pull wire 14 is provided between the humeral end 12 and the imitation ulna and radius ends 13, and the pull wire 14 also passes through a pull wire hole 15 on the large diameter short tube 3 and through the threading loop 11; the length from the pull wire hole 15 to the brachial canal rotation connection point 16 is equal to or greater than the brachial canal rotation connection point 16 to the connection point between the humeral end 12 and the pull wire 14; a small plate 22 for limiting flipping projection is provided on the imitation humeral rod 10 and the imitation ulna and radius rod 9 at the position near the rotation connection of the imitation humeral rod 10 and the imitation ulna and radius rod 9;

[0008] Inside the large-diameter short tube 3, the top cover plate 8 of the "T"-shaped sliding member 6 is located above the humeral end 12; outside the large-diameter short tube 3, a downward pressure plate 17 is provided at the lower end of the intermediate tube 7, and a circulating downward pressure plate 19 is provided on the rotating shaft 18 of the motor 4. In the rotating state, the circulating downward pressure plate 19 intermittently contacts the downward pressure plate 17.

[0009] In order to speed up the detection speed, that is, to speed up the bending and resetting speed of the simulated humerus rod 10 and the simulated radius and ulna rod 9: a spring 20 is sheathed outside the longitudinal support rod 2 between the lower end of the intermediate tube 7 and the base 1, or a spring 20 is sheathed outside the longitudinal support rod 2 on the top cover plate 8 in the large diameter short tube 3. The spring 20 speeds up the bending and resetting speed of the simulated humerus rod 10 and the simulated radius and ulna rod 9, so that the driving speed of the motor can be increased.

[0010] In order to prevent the large diameter short tube 3 from having insufficient bearing capacity for rotation as the simulated humerus rod 10, a rotating connecting plate 21 is provided at the lower edge of the large diameter short tube 3, and the rotating connecting plate 21 of the large diameter short tube 3 is rotatably connected to the simulated humerus rod 10. The rotating connecting plate 21 directly receives the rotational force of the simulated humerus rod 10, thereby preventing the simulated humerus rod 10 from damaging the wall of the large diameter short tube 3 with insufficient thickness.

[0011] The top of the above-mentioned longitudinal support rod 2 is fixedly connected to the top of the large-diameter short tube 3. The fixed connection method can be to set a top cover sealing top on the top of the large-diameter short tube 3, and the top of the longitudinal support rod 2 is fixedly connected to the top cover of the large-diameter short tube 3; or two cross fixing rods can be set on the top of the large-diameter short tube 3, and the top of the longitudinal support rod 2 is fixedly connected to the top of the large-diameter short tube 3 by the cross fixing rods.

[0012] Movement simulating shoulder joint bending: the brachial canal rotation connection point 16 is the rotation point of the simulated humeral rod 10. When the top cover plate 8 presses the humeral end 12 downward, the simulated humeral rod 10 outside the large-diameter short tube 3 rotates upward to simulate the humerus; and when the top cover plate 8 is upward, the weight of the simulated humeral rod 10 and the simulated ulna and radius rods 9, as well as the power of the spring 20 can reset the simulated humeral rod 10, resulting in reciprocating rotation of the shoulder joint, that is, reciprocating motion simulating shoulder joint bending.

[0013] Movement simulating elbow flexion: The length from the above-mentioned pull wire hole 15 to the brachial canal rotation connection point 16 is equal to or greater than the length from the brachial canal rotation connection point 16 to the connection point between the humeral end 12 and the pull wire 14. The purpose is that when the simulated humeral rod 10 rotates, the distance between the connection point between the humeral end 12 and the pull wire 14 will change, so that the length of the pull wire 14 consumed between the humeral end 12 and the pull wire hole 15 on the large-diameter short tube 3 will change. For example, the more downward the humeral end 12 is and the farther the humeral end 12 is from the pull wire hole 15, the longer the pull wire 14 consumed between these two points, and the shorter the pull wire 14 consumed from the pull wire hole 15 to the simulated ulna and radius ends 13. Due to the effect of the wire loop 11 on the simulated humeral rod 10, the shortened pull wire 14 pulls the simulated ulna and radius ends 13 toward the pull wire hole 15, causing the simulated ulna and radius rod 9 to rotate, thereby generating movement simulating elbow flexion.

[0014] The above-mentioned rotation-limiting protruding plate 22 is used to limit the simulated ulna and radius rods 9 from rotating to a rotation angle position that is too close to the simulated humeral rod 10, and to prevent the simulated ulna and radius rods 9 from rotating in a circular motion. Because the circular motion of the simulated ulna and radius rods 9 is not a bionic motion, the rotation-limiting protruding plate 22 is required to limit it.

[0015] When in use, the lower pressing plate 19 of the motor 4 rotates cyclically to press down the lower pressing force plate 17 connected to the lower side of the "T"-shaped sliding member 6, and the lower pressing force plate 17 drives the top cover plate 8 to press down the humeral end 12, and in the large-diameter short tube 3, the top cover plate 8 rotates the humeral ends 12 of the two humeral imitation rods 10 downward; outside the large-diameter short tube 3, the humeral imitation rod 10 and the ulna and radius rod 9 produce bending motion, that is, the simulated shoulder joint and the simulated elbow joint simulated arm double joint bending motion. If the instrument is embedded in a mannequin, it becomes a simulated arm double joint bending mannequin, which can be used to detect the durability of sleeves.

[0016] The advantages of the present invention are as follows: the shoulder joints and elbow joints of two arms of a person can be simulated to bend up and down at the same time. After being installed in a mannequin, the device can be used to detect the durability of clothing seams by bending two joints of both hands in a human bionic way, thereby achieving the purpose of detecting the quality of sleeves by using human bionic movements, and solving the problem that the current sleeve quality detection uses a linear stretching device cut into pieces, and the detection parameters have a weak practical reference to the human body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of the simulated humerus rod and the simulated radius and ulna rod of the present invention in a static drooping state;

[0018] Figure 2 It is a schematic structural diagram of the simulated humerus rod and the simulated radius and ulna rod of the present invention in an upwardly bent state;

[0019] In the figure, 1 is a base, 2 is a longitudinal support rod, 3 is a large diameter short tube, 4 is a motor, 5 is an imitation arm connecting rod, 6 is a "T"-shaped sliding part, 7 is an intermediate tube, 8 is a top cover plate, 9 is an imitation ulna and radius rod, 10 is an imitation humerus rod, 11 is a threading wire, 12 is the humeral end, 13 is the imitation ulna and radius end, 14 is a pull wire, 15 is a pull wire hole, 16 is a humeral tube rotation connection point, 17 is a downward pressure plate, 18 is a rotating shaft, 19 is a circulating downward pressure plate, 20 is a spring, 21 is a rotating connecting plate, and 22 is a small raised plate to limit flipping. DETAILED DESCRIPTION

[0020] Embodiment 1: Arm double joint bending sleeve durability tester

[0021] like Figure 1 , 2 ,

[0022] The arm double joint bending sleeve durability tester comprises a base 1, a longitudinal support rod 2, a large diameter short tube 3 and a motor 4, wherein the bottom of the longitudinal support rod 2 is fixedly connected to the base 1, and the top of the longitudinal support rod 2 is fixedly connected to the top of the large diameter short tube 3, the base 1 is provided with a motor 4, two positions below the large diameter short tube 3 on opposite sides of the longitudinal support rod 2 are rotatably connected with an imitation arm connecting rod 5, a "T"-shaped sliding member 6 is sleeved outside the longitudinal support rod 2, and the middle tube 7 of the "T"-shaped sliding member 6 is slidably sleeved outside the longitudinal support rod 2, the top cover plate 8 of the "T"-shaped sliding member 6 is located inside the large diameter short tube 3, and the top cover plate 8 is in contact with the top of the imitation arm connecting rod 5;

[0023] The imitation arm connecting rod 5 comprises an imitation humerus rod 10 and an imitation ulna and radius rod 9 which are rotatably connected to each other. At a position near the humeral end 12, the imitation humeral rod 10 is rotatably connected to the lower part of the large diameter short tube 3, and the rotation connection point is the brachial canal rotation connection point 16, so that the humeral end 12 of the imitation humeral rod 10 is located in the large diameter short tube 3; a threading loop 11 is provided at the rotation connection position of the imitation humeral rod 10 or the imitation ulna and radius rod 9; a pull wire 14 is provided between the humeral end 12 and the imitation ulna and radius ends 13, and the pull wire 14 also passes through a pull wire hole 15 on the large diameter short tube 3 and through the threading loop 11; the length from the pull wire hole 15 to the brachial canal rotation connection point 16 is equal to or greater than the brachial canal rotation connection point 16 to the connection point between the humeral end 12 and the pull wire 14; a small plate 22 for limiting flipping projection is provided on the imitation humeral rod 10 and the imitation ulna and radius rod 9 at the position near the rotation connection of the imitation humeral rod 10 and the imitation ulna and radius rod 9;

[0024] Inside the large-diameter short tube 3, the top cover plate 8 of the "T"-shaped sliding member 6 is located above the humeral end 12; outside the large-diameter short tube 3, a downward pressure plate 17 is provided at the lower end of the intermediate tube 7, and a circulating downward pressure plate 19 is provided on the rotating shaft 18 of the motor 4. In the rotating state, the circulating downward pressure plate 19 intermittently contacts the downward pressure plate 17.

[0025] In order to speed up the detection speed, that is, to speed up the bending and resetting speed of the simulated humerus rod 10 and the simulated radius and ulna rod 9: a spring 20 is sheathed outside the longitudinal support rod 2 between the lower end of the intermediate tube 7 and the base 1, or a spring 20 is sheathed outside the longitudinal support rod 2 on the top cover plate 8 in the large diameter short tube 3. The spring 20 speeds up the bending and resetting speed of the simulated humerus rod 10 and the simulated radius and ulna rod 9, so that the driving speed of the motor can be increased.

[0026] It is best to use a large diameter short tube 3 that is small on the top and large on the bottom, so that the simulated humeral rod 10 section in the large diameter short tube 3 is always inclined toward the center of the large diameter short tube 3. When the top cover plate 8 presses the humeral end 12 downward, the inclined simulated humeral rod 10 is guaranteed to rotate, producing a movement that simulates the bending of the human hand and shoulder.

[0027] The size of the top cover plate 8 should be able to contact the pull wire 14 during the downward pressing process and bend the pull wire 14, thereby consuming the length of the pull wire 14 in the large diameter short tube 3 and reducing the length of the pull wire 14 outside the large diameter short tube 3, thereby ensuring that the bending movement of the simulated humeral rod 10 can drive the bending movement of the simulated ulna and radius rods 9.

[0028] In order to prevent the large diameter short tube 3 from having insufficient bearing capacity for rotation as the simulated humerus rod 10, a rotating connecting plate 21 is provided at the lower edge of the large diameter short tube 3, and the rotating connecting plate 21 of the large diameter short tube 3 is rotatably connected to the simulated humerus rod 10. The rotating connecting plate 21 directly receives the rotational force of the simulated humerus rod 10, thereby preventing the simulated humerus rod 10 from damaging the wall of the large diameter short tube 3 with insufficient thickness.

Claims

1. An arm double joint bending sleeve durability tester, comprising a base (1), a longitudinal support rod (2), a large diameter short tube (3) and a motor (4), wherein the bottom of the longitudinal support rod (2) is fixedly connected to the base (1), the top of the longitudinal support rod (2) is fixedly connected to the top of the large diameter short tube (3), and the base (1) is provided with a motor (4), characterized in that: The two positions below the large-diameter short tube (3) on opposite sides of the longitudinal support rod (2) are rotatably connected with the imitation arm connecting rod (5), and a "T"-shaped sliding member (6) is sleeved outside the longitudinal support rod (2). The middle tube (7) of the "T"-shaped sliding member (6) is slidably sleeved outside the longitudinal support rod (2), and the top cover plate (8) of the "T"-shaped sliding member (6) is located inside the large-diameter short tube (3), and the top cover plate (8) is in contact with the top of the imitation arm connecting rod (5); The simulated arm connecting rod (5) comprises a simulated humeral rod (10) and a simulated ulna and radius rod (9) which are rotatably connected to each other. The simulated humeral rod (10) is rotatably connected to the lower part of the large-diameter short tube (3) at a position near the humeral end (12), and has a rotation connection point, which is a humeral tube rotation connection point (16), so that the humeral end (12) of the simulated humeral rod (10) is located in the large-diameter short tube (3); a threading loop (11) is provided at the rotation connection position of the simulated humeral rod (10) or the simulated ulna and radius rod (9); at the humeral end (12), a threading loop (11) is provided; ... 2) a pull wire (14) is provided between the imitation ulna and radius ends (13), and the pull wire (14) also passes through a pull wire hole (15) on the large diameter short tube (3) and through a threading loop (11); the length from the pull wire hole (15) to the brachial canal rotation connection point (16) is equal to or greater than the length from the brachial canal rotation connection point (16) to the connection point between the humeral end (12) and the pull wire (14); and a small protruding plate (22) for limiting the turning is provided on the imitation humeral rod (10) and the imitation ulna and radius rod (9) near the rotation connection between the imitation humeral rod (10) and the imitation ulna and radius rod (9); Inside the large-diameter short tube (3), the top cover plate (8) of the "T"-shaped sliding member (6) is located above the humeral end (12); outside the large-diameter short tube (3), a downward pressure plate (17) is provided at the lower end of the intermediate tube (7), and a circulating downward pressure plate (19) is provided on the rotating shaft (18) of the motor (4). In the rotating state, the circulating downward pressure plate (19) intermittently contacts the downward pressure plate (17); The large diameter short tube (3) is a tube that is smaller at the top and larger at the bottom.

2. The arm double joint bending sleeve durability tester according to claim 1, characterized in that: A spring (20) is sheathed on the outside of the longitudinal support rod (2) between the lower end of the intermediate tube (7) and the base (1), or a spring (20) is sheathed on the outside of the longitudinal support rod (2) on the top cover plate (8) in the large-diameter short tube (3).

3. The arm double joint bending sleeve durability tester according to claim 1 or 2, characterized in that: A rotating connection plate (21) is provided on the lower edge of the large-diameter short tube (3), and the rotating connection plate (21) of the large-diameter short tube (3) is rotatably connected to the simulated humeral rod (10).

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