A clamping structure for stretching detection of elastic fabric

Abstract

The present invention provides a clamping structure for stretching detection of elastic cloth, which relates to the technical field of clamping structures, and comprises: a driving mechanism; the driving mechanism comprises a fixing plate and an inner groove, the fixing plate is a rectangular structure, and as pressure is continuously applied to the elastic cloth, the clamping block moves downward and clamps the elastic cloth, and while the clamping block moves downward, the tooth plate is driven to move together, and the transmission action of the gear causes the flap to synchronously flip forward, and the elastic cloth is clamped in cooperation with the external plate, so that after the tension increases, the contact area between the clamping component and the elastic cloth is increased, and the elastic cloth is prevented from being torn due to excessive local pressure, and the problem that the existing elastic cloth stretching detection clamp only fixes the elastic cloth on the stretching device by a clamping head, but as the tension continues to increase, the pressure at the clamping head will continue to increase, causing the clamping part to tear, which will affect the accuracy of the stretching detection data is solved.

Description

Technical Field

[0001] The invention relates to the technical field of clamping structures, and in particular to a clamping structure for stretching detection of elastic fabric. Background Art

[0002] After the production of elastic fabric is completed, it needs to go through multiple testing procedures, among which tensile testing is one of the important testing procedures. During the testing, a clamping structure is needed to fix the elastic fabric to the testing device, and then the tensile testing device is used to perform the tensile test.

[0003] For example, application number: CN202220704995.X relates to a clothing fabric clamping fixture and a fabric stretching detection device, the clamping fixture includes a clamping assembly and a fixing assembly, the clamping assembly includes a top plate, a bottom plate, a side plate and a clamping plate, the top plate and the bottom plate are fixedly connected by the side plate, the clamping plate is arranged between the top plate and the bottom plate, the clamping plate and the top plate are connected by a screw, the screw passes through the thickness direction of the top plate, and a handle is fixed on the top of the screw; the fixing assembly includes a first fixing block, a second fixing block and a locking piece, the fabric to be tested can be fixed between the first fixing block and the second fixing block, the first fixing block and the second fixing block are detachably connected by the locking piece, the bottom surface of the top plate and the top surface of the bottom plate are respectively provided with a first card slot and a second card slot, the first card slot and the second card slot are arranged oppositely, and the first fixing block and the second fixing block are detachably connected to the first card slot and the second card slot. The clamping fixture of the utility model can improve the stability between the fabric to be tested and the fixture.

[0004] However, there are some shortcomings in the design of the current elastic fabric stretch testing fixture. First, the elastic fabric can be stretched and tested after being clamped. However, as the tension on the elastic fabric continues to increase, the elastic fabric with a smooth surface may be detached from the fixture due to excessive pulling force, thereby failing to complete the test of the elastic fabric. Secondly, the elastic fabric is only fixed to the stretching device by a chuck. However, as the pulling force continues to increase, the pressure at the chuck will continue to increase, causing tearing of the clamping part, which will affect the accuracy of the stretch test data. Summary of the invention

[0005] In view of the above problems, the present invention proposes a clamping structure for stretching detection of elastic fabric. By providing a continuously retractable clamping block, it can prevent the elastic fabric from detaching from the clamping device after the tension increases. By providing a flip-type flip machine external plate, it can prevent the elastic fabric from tearing due to the small clamping force area after the tension increases.

[0006] In a first aspect of the present disclosure, a clamping structure for stretching detection of elastic fabric is provided, which specifically comprises: a driving mechanism; the driving mechanism comprises a fixing plate and an inner groove, the fixing plate is a rectangular structure, and the fixing plate is fixedly mounted on a stretching detection device; the inner groove is arranged on the inner bottom side of the fixing plate; a connecting mechanism is arranged on the driving mechanism, the connecting mechanism comprises a connecting piece, a vertical groove and a connecting groove, triangular protrusions are symmetrically arranged on both sides of the bottom of the connecting piece, a rectangular groove is arranged in the middle position of the rear side of the connecting piece, and a pull rod on the connecting piece extends from the rear side of the fixing plate, the connecting piece is arranged on the front side of the fixing plate, and the connecting piece is in the fixed On the mounting frame at the outer end of the fixed plate, the triangular protrusion on the bottom side of the connecting piece is engaged with the side groove on the mounting frame; the vertical grooves are symmetrically arranged at the inner ends of both sides of the connecting piece; the connecting grooves are symmetrically opened on both sides of the bottom of the connecting piece; a sliding mechanism is provided on the connecting mechanism, and the clamping block of the sliding mechanism is movably arranged on the inner side of the connecting piece, and the rear side of the clamping block is in contact with the top block on the upper end of the fixed plate, and the front side of the clamping block extends from the inside of the connecting piece, and the side blocks on the clamping block are slidably matched with the vertical grooves through elastic members, and the pressure plate on the bottom side of the clamping block is against the inner side of the connecting piece, and the toothed plate on the clamping block passes through the connecting groove, and the toothed plate is connected to the gear transmission at the bottom of the connecting piece.

[0007] Optionally, the driving mechanism includes: a moving frame and a top block; the moving frame is slidably mounted on the upper end of the fixed plate, and the bottom of the moving frame is slidably matched with the inner groove through an elastic member; the top block is fixedly mounted on the top of the moving frame.

[0008] Optionally, the driving mechanism includes: an installation frame, a side groove and an installation rod; the installation frame is located on the front side of the fixed plate, and a rectangular groove is provided on the inner side of the installation frame; the side grooves are symmetrically arranged on both sides of the installation frame, and the side grooves pass through the front end of the installation frame; the installation rod is fixedly arranged on the rear side of the installation frame, and a spring is sleeved on the installation rod, wherein the elastic coefficient of the spring is smaller than the elastic coefficient of the spring inside the inner groove, and the installation rod is slidably matched with the fixed plate.

[0009] Optionally, the connecting mechanism includes: a pull rod and a mounting bracket; the pull rod is arranged on the rear side of the connecting piece, and the front end of the pull rod is rotatably connected to a rectangular groove in the middle position of the rear side of the connecting piece; the mounting bracket is fixedly installed in the middle position of the bottom of the connecting piece.

[0010] Optionally, the connecting mechanism includes: a flap and a gear; the flap is arranged on the bottom side of the connecting piece, and the flap is rotatably connected to the mounting frame, and the outer end surface of the flap is equidistantly provided with anti-slip grooves; the gear is fixedly mounted on both sides of the connection between the flap and the mounting frame.

[0011] Optionally, the sliding mechanism includes: a clamping block, a locking groove and a bottom groove; the rear side of the clamping block is a wedge-shaped structure; the locking groove is symmetrically opened at both ends of the bottom of the front side of the clamping block; the bottom groove is opened in the middle position of the bottom of the front side of the clamping block.

[0012] Optionally, the sliding mechanism includes: an external plate and a locking block; the external plate is sleeved on the front side of the clamping block, and the outer end surface of the external plate is equidistantly provided with anti-slip grooves; the locking blocks are symmetrically arranged at both ends of the inner side of the external plate, and the locking blocks are plugged into the locking grooves.

[0013] Optionally, the sliding mechanism includes: a slot and a side block; the slot is opened at the inner upper end of the clamping block, and the slot passes through both sides of the clamping block; the side blocks are located at both ends of the clamping block, and the side blocks are plugged into and matched with the slot.

[0014] Optionally, the sliding mechanism includes: a pressure plate and a tooth plate; the pressure plate is slidably installed in the bottom groove through an elastic member, and a control rod at the upper end of the pressure plate passes through the clamping block; the tooth plate is arranged at the bottom of the clamping block, and the upper end of the tooth plate is plugged into the rear side of the bottom groove, and two sets of racks are symmetrically arranged at the bottom of the tooth plate.

[0015] The present invention provides a clamping structure for stretching detection of elastic fabric, which has the following beneficial effects:

[0016] 1. The present invention provides a driving mechanism and a sliding mechanism, a moving frame is slidably installed on a fixed plate, and a wedge block is provided on the moving frame, a connecting piece is slidably installed to the front end of the fixed plate through the installation frame, and a clamping block is slidably installed inside the connecting piece, and a pressing plate for fixing the elastic cloth is slidably installed in the bottom groove in the clamping block. When in use, one side of the elastic cloth is fixed to the connecting piece through the pressing plate, and the elastic cloth is stretched and tested by pulling the pull rod. As the pulling force increases, the connecting piece moves toward the rear side, so that the top block pushes the clamping block downward and clamps the elastic cloth for a second time. By enabling the clamping block to slide along the top block, the clamping block can provide a greater clamping force to the elastic cloth when the pulling force is greater, thereby preventing the elastic cloth from slipping due to the increasing pulling force.

[0017] 2. The present invention provides a connecting mechanism and a sliding mechanism, a mounting frame is provided at the bottom of the connecting member, and the flap is rotatably installed to the bottom side of the connecting member through the mounting frame, a clamping block is slidably installed inside the connecting member, the toothed plate is installed to the lower end of the clamping block through the bottom groove, and the toothed plate passes through the connecting groove in the connecting member and is transmission-connected to the gears on both sides of the flap, and a clamping groove is provided at both ends of the clamping block. The external plate is fixed to the outer side of the clamping block by engaging the clamping block with the clamping groove. As pressure is continuously applied to the elastic cloth, the clamping block will move downward and clamp the elastic cloth. When the clamping block moves downward, it will drive the toothed plate to move together, and through the transmission action of the gear, the flap is synchronously flipped forward, and the elastic cloth is clamped under the action of the external plate. In this way, after the pulling force increases, the contact area between the clamping component and the elastic cloth is increased, thereby preventing the elastic cloth from being torn due to excessive local pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The following drawings will provide a better understanding of the present disclosure and more clearly demonstrate the advantages of the present disclosure. The drawings described herein are for illustrative purposes only of selected embodiments, not all possible implementations, and are not intended to limit the scope of the present disclosure.

[0019] In the attached picture:

[0020] Figure 1 A perspective view of an embodiment according to the present invention is shown.

[0021] Figure 2 A split diagram according to an embodiment of the present invention is shown.

[0022] Figure 3 A rear bottom view is shown according to an embodiment of the present invention.

[0023] Figure 4 A schematic diagram of a partial cross-sectional structure of the front side according to an embodiment of the present invention is shown.

[0024] Figure 5 The embodiment according to the present invention is shown. Figure 4 The enlarged structural diagram of point A is shown below.

[0025] Figure 6 A schematic diagram of the three-dimensional structure of a driving mechanism according to an embodiment of the present invention is shown.

[0026] Figure 7 A schematic diagram of the connection between the driving mechanism and the connecting mechanism according to an embodiment of the present invention is shown.

[0027] Figure 8 A cut-away cross-sectional view is shown of an embodiment according to the present invention.

[0028] Fig. 9 A perspective view of a sliding mechanism according to an embodiment of the present invention is shown.

[0029] Fig.10 A front side cross-sectional structural schematic diagram of a sliding mechanism according to an embodiment of the present invention is shown.

[0030] Reference numerals list

[0031] 1. Driving mechanism;

[0032] 101, fixed plate; 1011, inner groove;

[0033] 102, moving frame; 1021, top block;

[0034] 103, mounting frame; 1031, side groove; 1032, mounting rod;

[0035] 2. Connecting mechanism;

[0036] 201, connecting piece; 2011, vertical groove; 2012, connecting groove;

[0037] 202, pull rod; 203, mounting frame;

[0038] 204, flap; 2041, gear;

[0039] 3. Sliding mechanism;

[0040] 301, clamping block; 3011, engaging groove; 3012, bottom groove;

[0041] 302, external board; 3021, snap-fit ​​block;

[0042] 303, slot; 3031, side block;

[0043] 304, pressure plate; 305, tooth plate. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment 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.

[0045] Example 1: Please refer to Figures 1 to 10 As shown:

[0046] The present invention provides a clamping structure for stretching detection of elastic fabric, comprising: a driving mechanism 1; the driving mechanism 1 comprises a fixing plate 101 and an inner groove 1011, the fixing plate 101 is a rectangular structure, and the fixing plate 101 is fixedly installed on a stretching detection device; the inner groove 1011 is arranged on the inner bottom side of the fixing plate 101; a connecting mechanism 2 is arranged on the driving mechanism 1, and the connecting mechanism 2 comprises a connecting member 201, a vertical groove 2011 and a connecting groove 2012, triangular protrusions are symmetrically arranged on both sides of the bottom of the connecting member 201, a rectangular groove is arranged in the middle position of the rear side of the connecting member 201, and a pull rod 202 on the connecting member 201 extends from the rear side of the fixing plate 101, the connecting member 201 is arranged on the front side of the fixing plate 101, and the connecting member 201 is on the installation frame 103 at the outer end of the fixing plate 101, and the bottom of the connecting member 201 is The triangular protrusions on the side are engaged with the side grooves 1031 on the mounting frame 103; the vertical grooves 2011 are symmetrically arranged at the inner ends of the two sides of the connecting member 201; the connecting grooves 2012 are symmetrically opened on both sides of the bottom of the connecting member 201; a sliding mechanism 3 is provided on the connecting mechanism 2, and the clamping block 301 of the sliding mechanism 3 is movably arranged on the inner side of the connecting member 201, and the rear side of the clamping block 301 is in contact with the top block 1021 at the upper end of the fixed plate 101, and the front side of the clamping block 301 extends from the inside of the connecting member 201, and the side block 3031 on the clamping block 301 is slidably matched with the vertical grooves 2011 through elastic members, and the pressing plate 304 on the bottom side of the clamping block 301 is against the inner side of the connecting member 201, and the tooth plate 305 on the clamping block 301 passes through the connecting groove 2012, and the tooth plate 305 is transmission-connected with the gear 2041 at the bottom of the connecting member 201.

[0047] As the second embodiment of the present application, based on the first embodiment, Figure 3 and 6 As shown, the driving mechanism 1 includes: a moving frame 102 and a top block 1021; the moving frame 102 is slidably mounted on the upper end of the fixed plate 101, and the bottom of the moving frame 102 is slidably matched with the inner groove 1011 through an elastic member; the top block 1021 is fixedly mounted on the top of the moving frame 102; a mounting frame 103, a side groove 1031 and a mounting rod 1032; the mounting frame 103 is located at the front side of the fixed plate 101, and a rectangular groove is provided on the inner side of the mounting frame 103; the side grooves 1031 are symmetrically arranged on both sides of the mounting frame 103, and the side grooves 1031 pass through the front end of the mounting frame 103; the mounting rod 1032 is fixedly arranged on the rear side of the mounting frame 103, and a spring is sleeved on the mounting rod 1032, wherein the elastic coefficient of the spring is less than the elastic coefficient of the spring inside the inner groove 1011, and the mounting rod 1032 is slidably matched with the fixed plate 101.

[0048] A fixed plate 101 is provided, and the device can be fixedly installed on the stretch cloth stretch detection device through the fixed plate 101; a rectangular inner groove 1011 is provided, and the movable frame 102 is slidably matched with the inner groove 1011, so that the movable frame 102 can be slidably installed on the fixed plate 101; a rectangular movable frame 102 is provided, and the movable frame 102 is slid on the fixed plate 101 to assist the stretch detection of the stretch cloth; a wedge-shaped top block 1021 is provided, and the top block 1021 is contacted with the clamping block 301, so that when the clamping block 301 moves along the top block 1021, the clamping block 301 1 moves downward; a C-shaped installation frame 103 is provided, and the installation frame 103 is fixed to the connecting member 201, so that the connecting member 201 can be movably installed on the fixing plate 101 through the installation frame 103; a triangular side groove 1031 is provided, and the side groove 1031 is engaged with the triangular protrusion at the bottom of the connecting member 201, and when the triangular protrusion on the connecting member 201 is engaged with the side groove 1031, the connecting member 201 is fixedly connected with the installation frame 103; a mounting rod 1032 is provided, and the installation frame 103 can be slidably installed to the front side of the fixing plate 101 through the mounting rod 1032.

[0049] As the third embodiment of the present application, based on the first embodiment, Figure 5 and 7 As shown, the connecting mechanism 2 includes: a pull rod 202 and a mounting frame 203; the pull rod 202 is arranged on the rear side of the connecting member 201, and the front end of the pull rod 202 is rotatably connected to the rectangular groove in the middle position of the rear side of the connecting member 201; the mounting frame 203 is fixedly installed in the middle position of the bottom of the connecting member 201; a flap 204 and a gear 2041; the flap 204 is arranged on the bottom side of the connecting member 201, and the flap 204 is rotatably connected to the mounting frame 203, and the outer end surface of the flap 204 is equidistantly provided with anti-slip grooves; the gear 2041 is fixedly installed on both sides of the connection between the flap 204 and the mounting frame 203.

[0050] A U-shaped connector 201 is provided, and a clamp block 301 can be slidably installed inside the connector 201, and can be used in conjunction with the clamp block 301, so that the elastic fabric can be clamped and fixed when the connector 201 and the clamp block 301 are assembled; a vertical groove 2011 is provided, and the clamp block 301 can be slidably installed inside the connector 201 by slidingly cooperating the vertical groove 2011 with the side block 3031; a rectangular connecting groove 2012 is provided, and the tooth plate 305 can be connected to the gear 2041 on the flap 204 through the connecting groove 2012; a rectangular pull rod 202 is provided, and by pulling the pull rod The rod 202 can move the connecting member 201 to the rear side, and the clamping block 301 can clamp the elastic cloth with the cooperation of the top block 1021; a rectangular mounting frame 203 is provided, and the flap 204 can be rotatably installed to the bottom of the connecting member 201 through the mounting frame 203; a rectangular flap 204 is provided, and after the flap 204 is flipped up to the front side, the elastic cloth can be clamped by using it in cooperation with the external plate 302; a fixedly installed gear 2041 is provided, and the gear 2041 is transmission-connected with the tooth plate 305, so that the flap 204 can be synchronously flipped to the front side while the clamping block 301 is pressed down.

[0051] As the fourth embodiment of the present application, based on the first embodiment, Fig. 9 and 10 As shown, the sliding mechanism 3 includes: a clamping block 301, a snap-fitting groove 3011 and a bottom groove 3012; the rear side of the clamping block 301 is a wedge-shaped structure; the snap-fitting groove 3011 is symmetrically arranged at the two ends of the bottom of the front side of the clamping block 301; the bottom groove 3012 is arranged in the middle position of the bottom of the front side of the clamping block 301; an external plate 302 and a snap-fitting block 3021; ​​the external plate 302 is sleeved on the front side of the clamping block 301, and the outer end surface of the external plate 302 is equidistantly provided with anti-slip grooves; the snap-fitting blocks 3021 are symmetrically arranged at the two ends of the inner side of the external plate 302, and the snap-fitting blocks 3021 are plugged and matched with the snap-fitting grooves 3011; the slot 303 and side block 3031; the slot 303 is opened at the inner upper end of the clamping block 301, and the slot 303 passes through both sides of the clamping block 301; the side blocks 3031 are located at both ends of the clamping block 301, and the side blocks 3031 are plugged into and matched with the slot 303; the pressure plate 304 and the tooth plate 305; the pressure plate 304 is slidably installed in the bottom groove 3012 through an elastic member, and the control rod at the upper end of the pressure plate 304 passes through the clamping block 301; the tooth plate 305 is arranged at the bottom of the clamping block 301, and the upper end of the tooth plate 305 is plugged into and matched with the rear side of the bottom groove 3012, and two sets of racks are symmetrically arranged at the bottom of the tooth plate 305.

[0052] A wedge-shaped clamp block 301 is provided, and the clamp block 301 is used in conjunction with the connecting piece 201, so that the elastic fabric can be clamped and fixed during testing; a triangular engaging groove 3011 is provided, and when the external plate 302 is installed on the front side of the clamp block 301, the external plate 302 can be fixed to the outside of the clamp block 301 by engaging the engaging block 3021 with the engaging groove 3011; a rectangular bottom groove 3012 is provided, and the pressure plate 304 can be movably installed on the clamp block 301 with the tooth plate 305 through the bottom groove 3012; a rectangular external plate 302 is provided, and the external plate 302 is used in conjunction with the flap 204, so that the elastic fabric can be clamped and fixed during testing; a triangular engaging block 3021 is provided, and the engaging block 3021 can be engaged with the engaging groove 3011 , the external plate 302 can be fixed to the outer end of the clamping block 301; a rectangular slot 303 is set, and the side block 3031 can be fixed to the two sides of the upper end of the clamping block 301 through the slot 303; a rectangular side block 3031 is set, and the clamping block 301 can be slidably installed inside the connecting member 201 by slidingly connecting the side block 3031 with the vertical slot 2011; a rectangular pressing plate 304 is set, and one end of the elastic cloth can be fixed between the clamping block 301 and the connecting member 201 by pressing the pressing plate 304 on the elastic cloth; a tooth plate 305 is set, and the tooth plate 305 is connected to the gear 2041 for transmission, so that when the clamping block 301 is pressed down inside the connecting member 201, the flap 204 can be synchronously flipped forward, thereby cooperating to clamp and fix the elastic cloth.

[0053] The specific usage and function of this embodiment are as follows:

[0054] In the present invention, Figure 1-10 As shown, the fixing plate 101 is fixedly mounted on the tensile testing device, and the mounting frame 103

[0055] The movable frame 102 with the top block 1021 is installed on the top of the fixed plate 101, and then the connecting piece 201 is plugged into the installing frame 103 along the side groove 1031 from the front side, and the pull rod 202 at the rear end of the connecting piece 201 passes through the movable frame 102 and extends out from the rear side of the fixed plate 101, and the flap 204 is installed to the bottom of the connecting piece 201 through the mounting frame 203, and the clamping block 301 is slidably installed into the interior of the connecting piece 201 through the cooperation of the side block 3031 and the vertical groove 2011, and the rear end of the clamping block 301 is fitted with the top block 1021, and a group of tooth plates 305 are plugged and fixed at the bottom of the clamping block 301, and the tooth plates 305 are connected to the gear 2041 through the connecting groove 2012, and the front side of the clamping block 301 is pulled upward. The pressure plate 304 is then used to clamp and fix one end of the elastic fabric to the front side of the connecting member 201 through the pressure plate 304, and then the external plate 302 is fixed to the front end of the clamping block 301 through the engagement of the locking block 3021 and the locking groove 3011. By pulling the pull rod 202, the elastic fabric is stretched. As the pulling force on the pull rod 202 is increased, the connecting member 201 can be moved backward, and the clamping block 301 can be moved downward along the top block 1021 until the clamping block 301 contacts and clamps the elastic fabric. During the downward pressing of the clamping block 301, the transmission action of the tooth plate 305 and the gear 2041 can make the flap 204 flip 90° to the front side, and cooperate with the external plate 302 to clamp the elastic fabric, which can increase the force area of ​​the elastic fabric clamping, so that the stretching of the elastic fabric can be detected.

[0056] In this article, there are a few points to note:

[0057] 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0058] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0059] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A clamping structure for stretching detection of elastic fabric, include: A driving mechanism (1); the driving mechanism (1) comprises a fixing plate (101) and an inner groove (1011); the fixing plate (101) is a rectangular structure, and the fixing plate (101) is fixedly mounted on a tensile testing device; the inner groove (1011) is provided on the inner bottom side of the fixing plate (101); the driving mechanism (1) is characterized in that a connecting mechanism (2) is provided on the driving mechanism (1), and the connecting mechanism (2) comprises a connecting piece (201), a vertical groove (2011), a connecting groove (2012), and a pull rod (202) The bottom of the connecting member (201) is symmetrically provided with triangular protrusions on both sides, a rectangular groove is provided in the middle of the rear side of the connecting member (201), and the pull rod (202) on the connecting member (201) extends from the rear side of the fixing plate (101). The connecting member (201) is arranged on the front side of the fixing plate (101), and the connecting member (201) is located on the installation frame (103) at the outer end of the fixing plate (101). The triangular protrusion on the bottom side of the connecting member (201) is engaged with the side groove (1031) on the installation frame (103); the vertical groove (2011) are symmetrically arranged at the inner ends of both sides of the connecting member (201); the connecting groove (2012) is symmetrically opened at both sides of the bottom of the connecting member (201); the pull rod (202) is arranged at the rear side of the connecting member (201), and the front end of the pull rod (202) is rotatably connected to the rectangular groove at the middle position of the rear side of the connecting member (201); the connecting mechanism (2) is provided with a sliding mechanism (3), and the clamping block (301) of the sliding mechanism (3) is movably arranged on the inner side of the connecting member (201), and the rear side of the clamping block (301) is connected to the fixed The top block (1021) at the upper end of the fixed plate (101) is fitted, the front side of the clamping block (301) extends from the inside of the connecting piece (201), the side block (3031) on the clamping block (301) is slidably matched with the vertical groove (2011) through an elastic member, the pressing plate (304) on the bottom side of the clamping block (301) is against the inner side of the connecting piece (201), and the tooth plate (305) on the clamping block (301) passes through the connecting groove (2012), and the tooth plate (305) is transmission-connected to the gear (2041) at the bottom of the connecting piece (201).

2. A clamping structure for stretching detection of elastic fabric according to claim 1, Features: The driving mechanism (1) comprises: a moving frame (102) and a top block (1021); the moving frame (102) is slidably mounted on the upper end of the fixed plate (101), and the bottom of the moving frame (102) is slidably matched with the inner groove (1011) via an elastic member; and the top block (1021) is fixedly mounted on the top of the moving frame (102).

3. A clamping structure for stretching detection of elastic fabric according to claim 1, Features: The driving mechanism (1) comprises: a mounting frame (103), a side groove (1031) and a mounting rod (1032); the mounting frame (103) is located at the front side of the fixed plate (101), and a rectangular groove is provided on the inner side of the mounting frame (103); the side grooves (1031) are symmetrically arranged on both sides of the mounting frame (103), and the side grooves (1031) penetrate the front end of the mounting frame (103); the mounting rod (1032) is fixedly arranged at the rear side of the mounting frame (103), and a spring is sleeved on the mounting rod (1032), wherein the elastic coefficient of the spring is smaller than the elastic coefficient of the spring inside the inner groove (1011), and the mounting rod (1032) is slidably matched with the fixed plate (101).

4. A clamping structure for stretching detection of elastic fabric according to claim 1, Features: The connecting mechanism (2) comprises: a mounting frame (203); the mounting frame (203) is fixedly mounted at a middle position of the bottom of the connecting member (201).

5. A clamping structure for stretching detection of elastic fabric according to claim 4, Features: The connection mechanism (2) comprises: a flap (204) and a gear (2041); the flap (204) is arranged on the bottom side of the connection member (201), the flap (204) is rotatably connected to the mounting frame (203), and anti-slip grooves are equidistantly formed on the outer end surface of the flap (204); the gear (2041) is fixedly mounted on both sides of the connection between the flap (204) and the mounting frame (203).

6. A clamping structure for stretching detection of elastic fabric according to claim 1, Features: The sliding mechanism (3) comprises: a clamping block (301), a snap-fitting groove (3011) and a bottom groove (3012); the rear side of the clamping block (301) is a wedge-shaped structure; the snap-fitting groove (3011) is symmetrically arranged at two ends of the bottom of the front side of the clamping block (301); and the bottom groove (3012) is arranged in the middle position of the bottom of the front side of the clamping block (301).

7. A clamping structure for stretching detection of elastic fabric according to claim 6, Features: The sliding mechanism (3) comprises: an external plate (302) and a snap-fit ​​block (3021); the external plate (302) is sleeved on the front side of the clamping block (301), and the outer end surface of the external plate (302) is provided with anti-slip grooves at equal intervals; the snap-fit ​​blocks (3021) are symmetrically arranged at two ends of the inner side of the external plate (302), and the snap-fit ​​blocks (3021) are plugged into and matched with the snap-fit ​​grooves (3011).

8. A clamping structure for stretching detection of elastic fabric according to claim 6, Features: The sliding mechanism (3) comprises: a slot (303) and a side block (3031); the slot (303) is provided at the inner upper end of the clamping block (301), and the slot (303) passes through both sides of the clamping block (301); the side blocks (3031) are located at both ends of the clamping block (301), and the side blocks (3031) are plugged into and matched with the slot (303).

9. A clamping structure for stretching detection of elastic fabric according to claim 6, Features: The sliding mechanism (3) comprises: a pressing plate (304) and a tooth plate (305); the pressing plate (304) is slidably mounted in the bottom groove (3012) via an elastic member, and a control rod at the upper end of the pressing plate (304) penetrates the clamping block (301); the tooth plate (305) is arranged at the bottom of the clamping block (301), and the upper end of the tooth plate (305) is plug-fitted with the rear side of the bottom groove (3012), and two sets of toothed racks are symmetrically arranged at the bottom of the tooth plate (305).

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