Rapid locking sample clamp for fuzzing and pilling test

Abstract

The utility model provides a quick locking sample clamp for fuzzing and pilling tests, and belongs to the technical field of sample clamps for fuzzing and pilling tests. The at least three lock tongues are arranged on the chuck plate in a sliding mode in the diameter direction of the chuck plate, and the lock tongues are connected with the chuck plate through springs; and the clamping and pressing mechanism comprises a heavy hammer, a cam and a push block, the push block is connected with the spring bolt, the heavy hammer abuts against the push block, and the abutting faces of the heavy hammer and the push block are inclined faces. The rapid locking sample clamp for the fuzzing and pilling test has the beneficial effects that through the ingenious design of the clamping and pressing mechanism, the eccentric rotation of the cam is utilized to drive the heavy hammer to press the spring bolt downwards, so that the spring bolt extends out along the diameter direction of the chuck to open the rubber ring to fix a sample, and the rapid locking sample clamp is simple and convenient to operate, high in locking speed and high in reliability. The fuzzing and pilling test efficiency can be remarkably improved, and the device is stable and reliable in structure and suitable for clamping samples of various specifications.

Description

Technical Field

[0001] This utility model relates to the field of sample clamps for fuzzing and pilling testing, and in particular to a quick-locking sample clamp for fuzzing and pilling testing. Background Technology

[0002] Pilling and fuzzing testing equipment is a specialized instrument used to assess the tendency of textiles (such as fabrics, clothing, home textiles, etc.) to form pills (fuzz, pilling) due to friction or wear during use. It detects the shedding, entanglement, and pilling of fibers on the fabric surface by simulating the friction during actual wear or use, providing data support for product quality control.

[0003] The pilling and fuzzing detection equipment uses a sample clamp to load the sample and connect its movable end to repeat the friction action. The sample clamp is generally a disc-shaped part. A circular sample is cut out and placed on the surface of the sample clamp. The part of the sample that extends beyond the disc-shaped sample clamp is fixed to the outside of the circumference of the sample clamp by a rubber ring. This completes the loading of the sample. Since the rubber ring needs to provide elastic force to tighten the sample, the size of the rubber ring needs to be slightly smaller than the size of the disc of the sample clamp. This makes the process of manually putting on and taking off the rubber ring very troublesome. Existing sample clamps are cumbersome and time-consuming to lock and release the sample, which is difficult to meet the needs of efficient detection. Therefore, it is of great significance to design a clamp that can quickly lock and release the sample. Utility Model Content

[0004] In view of this, embodiments of the present invention provide a quick-locking sample clamp for fuzzing and pilling testing, which solves the technical problem of inconvenient operation of existing sample clamps that fix the sample with a rubber ring.

[0005] This utility model provides a quick-locking sample clamp for testing pilling and fuzzing, comprising: a clamping plate; at least three locking tongues evenly arranged in the circumferential direction, the locking tongues being slidably disposed on the clamping plate along the diameter direction of the clamping plate, the locking tongues and the clamping plate being connected by springs; and a clamping mechanism, the clamping mechanism comprising a weight, a cam and a push block, the push block being connected to the locking tongues, the weight and the push block abutting against each other, and the abutting surfaces of the weight and the push block being both inclined surfaces, the cam abutting against the weight, the cam pressing the weight by eccentric rotation, causing the weight to simultaneously press down multiple locking tongues, and causing the locking tongues to extend along the diameter direction of the clamping plate, thereby opening the rubber ring to fix the sample.

[0006] Furthermore, the latch includes a sliding portion and an arc-shaped portion, the arc-shaped portion being disposed on the end of the sliding portion away from the clamping plate, and the arc-shaped portions of the plurality of latches are configured such that when the plurality of arc-shaped portions abut together, they surround each other to form a ring.

[0007] Furthermore, a groove is provided at the bottom of the sliding part, and the inner wall of the groove is connected to the elastic element through a spring seat, wherein the elastic element is a spring.

[0008] Furthermore, the surface of the clamp is provided with interconnected sliding grooves and arc-shaped grooves, the arc-shaped grooves and the sliding grooves corresponding to the shape of the latch, so that the latch can have a receiving space when it retracts onto the clamp.

[0009] Furthermore, a connecting pipe located at the center of the axis is provided on the upper surface of the chuck, and both the counterweight and the cam are disposed on the connecting pipe.

[0010] Furthermore, a mounting platform is fixed to the outside of the connecting pipe, and an extension protrudes from the outside of the mounting platform, with the cam rotating eccentrically on the extension.

[0011] Furthermore, a handle is provided on the outside of the cam.

[0012] Furthermore, the outer periphery of the arc-shaped portion has an inwardly recessed groove that facilitates the insertion of the rubber ring.

[0013] Furthermore, the push block is connected to the upper surface of the sliding part, and the push block slides on the upper surface of the clamping plate.

[0014] Furthermore, a limit key and a limit groove are respectively provided on the opposite side of the slide groove and the sliding part, and the limit key is slidably connected to the limit groove to prevent the locking tongue from disengaging from the slide groove.

[0015] The beneficial effects of the technical solution provided by the embodiments of this utility model are as follows: The quick-locking sample clamp for the fuzzing and pilling test of this utility model, through the ingenious design of the clamping mechanism, uses the eccentric rotation of the cam to drive the weight to press down the locking tongue, so that the locking tongue extends along the diameter direction of the clamping plate, opens the rubber ring to fix the sample, the operation is simple, the locking speed is fast, it can significantly improve the efficiency of the fuzzing and pilling test, and the structure is stable and reliable, suitable for clamping samples of various specifications. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural view of the quick-locking sample clamp for testing the pilling and fuzzing of this utility model.

[0017] Figure 2 This is a side view of the structure of the quick-locking sample clamp cam connected to the counterweight for the pilling and fuzzing test of this utility model;

[0018] Figure 3 This is a three-dimensional view of the clamping disc structure of the quick-locking sample clamp for testing the pilling and fuzzing of this utility model;

[0019] Figure 4This is a three-dimensional view of the locking tongue structure of the quick-locking sample clamp for testing pilling and fuzzing according to this utility model.

[0020] In the diagram: 100, clamping plate; 11, arc groove; 12, slide groove; 13, connecting pipe; 200, clamping mechanism; 21, counterweight; 22, mounting platform; 2201, extension; 23, cam; 300, locking tongue; 31, sliding part; 32, arc part; 3201, recessed groove; 34, groove; 35, spring. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be further described below with reference to the accompanying drawings. The following description presents a preferred embodiment of several possible embodiments of this utility model, intended to provide a basic understanding of the utility model, but not intended to identify the key or decisive elements of the utility model or to limit the scope of protection sought.

[0022] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0023] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0024] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures. Also, it should be understood that, for ease of description, the dimensions of the various parts shown in the figures are not drawn to actual scale.

[0025] In the description of this utility model, it should be noted that the circuits, electronic components and modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated. The content protected by this utility model does not involve any improvement to the internal structure and method.

[0026] It should be further noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] Please refer to Figure 1The present invention provides a quick-locking sample clamp for a pilling test, comprising: a clamping plate 100, at least three locking tongues 300 and a clamping mechanism 200. The clamping mechanism 200 is used to push the locking tongues 300 out of the clamping plate 100, thereby supporting the rubber ring located outside the clamping plate 100 by the locking tongues 300.

[0028] Among them, the clamping plate 100 is the basic component of the entire sample clamp, and a connecting tube 13 is provided at the center of its upper surface for installing the clamping mechanism 200.

[0029] The surface of the clamp 100 is also provided with interconnected sliding grooves 12 and arc grooves 11. The sliding grooves 12 and arc grooves 11 correspond to the shape of the locking tongue 300, providing a space for the locking tongue 300 to retract into the clamp 100, ensuring that the locking tongue 300 can fit tightly on the clamp 100 when not in use, without affecting the integrity and appearance of the sample clamp.

[0030] Please see Figure 1 and Figure 4 The locking tongue 300 is slidably disposed on the clamp 100 along the diameter direction of the clamp 100. Each locking tongue 300 includes a sliding part 31 and an arc-shaped part 32. The arc-shaped part 32 is located at the end of the sliding part 31 away from the clamp 100. When the arc-shaped parts 32 of multiple locking tongues 300 abut together, they form a ring around each other to open the rubber ring and fix the sample.

[0031] In another embodiment, the number of locking tongues 300 can also be four. The arc-shaped portions 32 in the four locking tongues 300 can still form a ring when they are engaged together. In this case, the diameter of the fixed rubber ring can be slightly larger than the outer diameter of the ring formed by the four arc-shaped portions 32. Therefore, the rubber ring can be easily placed on the outside of the clamping plate 100 through the sample for quick clamping.

[0032] It should be noted that a groove 34 is provided at the bottom of the sliding part 31. The inner wall of the groove 34 is connected to the spring 35 through a spring seat. The spring 35 provides elastic support for the locking tongue 300, so that the locking tongue 300 can automatically retract into the sliding groove 12 and arc groove 11 of the clamping plate 100 when it is not subjected to external force.

[0033] Please see Figure 1 The arc-shaped outer periphery of the arc-shaped portion 32 has an inward recessed groove 3201, which facilitates the insertion of the rubber ring, enhances the fixation effect on the sample, and prevents the sample from sliding or loosening during the test.

[0034] In the specific use of the sample clamp, by adding a felt pad to the bottom of the clamp 100, the sample covering the bottom surface of the clamp 100 has a certain curvature so that the sample can contact the test surface. At this time, the part of the bottom surface of the clamp 100 is covered by the outside of the arc-shaped part 32. Since the arc-shaped groove 11 is located at the top of the clamp 100, the gap between the multiple arc-shaped parts 32 that open up will not interfere with the part of the sample located on the bottom surface of the clamp 100, such as the problem of insufficient clamping tension.

[0035] Please see Figures 1 to 3 The clamping mechanism 200 includes a counterweight 21, a cam 23, and a push block 24. The push block 24 is connected to the upper surface of the sliding part 31 of the locking tongue 300, and the push block 24 can slide on the upper surface of the clamping plate 100. The counterweight 21 and the cam 23 are both set on the connecting pipe 13 of the clamping plate 100. A mounting platform 22 is fixed to the outside of the connecting pipe 13. An extension 2201 protrudes from the outside of the mounting platform 22. The cam 23 rotates eccentrically on the extension 2201. A handle 2301 is also provided on the outside of the cam 23 to facilitate the operator to rotate the cam 23.

[0036] Additionally, the extension 2201 has a bearing seat at its center, and the cam 23 is rotatably mounted in the bearing seat via a pin. The rotation center of the cam 23 is offset from its geometric center. The counterweight 21 has a through-hole in the middle, and the connecting tube 13 passes through the through-hole, so that the counterweight 21 can slide on the connecting tube 13.

[0037] In actual implementation, in the initial state, the short diameter end of cam 23 faces the counterweight 21, and the system is in static equilibrium. The operator turns the handle 2301 to drive cam 23 to rotate clockwise by 30°-45°. The contact point P of the outer contour of cam 23 switches to the long diameter end. The counterweight 21 is squeezed by cam 23 and generates vertical displacement. The counterweight 21 forces the locking tongue 300 to move in the clamping direction through the inclined contact push block 234. When cam 23 rotates more than 45°, the center of gravity of cam 23 shifts to the lower side of the rotation center. At this time, the torque on cam 23 is in the vertical direction, thus forming a self-locking effect to prevent cam 23 from rotating unexpectedly.

[0038] The counterweight 21 and the push block 24 abut against each other, and the abutting surfaces of the counterweight 21 and the push block 24 are both inclined surfaces. This inclined surface design allows the counterweight 21 to convert the vertical force into the horizontal thrust through the action of the inclined surface when it presses down, thereby pushing the push block 24 to drive the locking tongue 300 to extend along the diameter direction of the clamping plate 100.

[0039] In addition, to prevent the locking tongue 300 from disengaging from the slide groove 12 during the sliding process, a limit key and a limit groove are respectively provided on the opposite side of the slide groove 12 and the sliding part 31. The limit key can slide in the limit groove, thereby restricting the locking tongue 300 from disengaging from the slide groove 12, ensuring that the locking tongue 300 always moves within the predetermined track, and improving the stability and reliability of the sample clamp.

[0040] The working principle of the above embodiment is as follows: When it is necessary to fix the sample, the operator selects a rubber ring slightly larger than the clamp 100 and places the sample covering the clamp 100 outside the clamp 100. At this time, the cam 23 is rotated by the handle 2301. The cam 23 squeezes the weight 21 by eccentric rotation, causing the weight 21 to press down on multiple locking tongues 300 at the same time. During the pressing down of the weight 21, the push block 24 is in a compressed state, and the sliding part 31 of the locking tongue 300 connected to the push block 24 moves from... The sample is pushed out of the groove 12 and arc groove 11 of the clamp 100, causing the locking tongue 300 to extend outward along the diameter of the clamp 100. The arc-shaped parts 32 of multiple locking tongues 300 together open the rubber ring, firmly fixing the sample between the rubber ring and the clamp 100. After the test is completed, the cam 23 is rotated in the opposite direction, and the weight 21 is reset under the elastic force of the spring 35. The locking tongue 300 also retracts into the groove 12 and arc groove 11 of the clamp 100, completing the rapid release of the sample.

[0041] In this document, the directional terms such as front, back, top, and bottom are defined according to the positions of the components in the accompanying drawings and the positions between the components, solely for the purpose of clarity and convenience in expressing the technical solution. It should be understood that these are relative concepts and can vary accordingly depending on different methods of use and placement. The use of these directional terms should not limit the scope of protection claimed by this utility model.

[0042] Where there is no conflict, the above embodiments and features described herein can be combined with each other.

[0043] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A quick-locking specimen holder for use in a pilling test, characterized in that The utility model relates to a clamp chuck (100) and a clamping mechanism (200) for clamping rubber ring, and the clamp chuck (100) comprises: At least three locking tongues (300) are uniformly arranged in the circumferential direction, and the locking tongues are slidably arranged on the clamp chuck (100) along the diameter direction of the clamp chuck (100), and the locking tongues (300) and the clamp chuck (100) are connected through elastic members; The clamping mechanism (200) comprises a weight (21), a cam (23) and a push block (24), the push block (24) is connected with the locking tongues (300), the weight (21) and the push block (24) abut, the abutting surfaces of the weight (21) and the push block (24) are both inclined surfaces, the cam (23) abuts with the weight (21), the cam (23) extrudes the weight (21) through eccentric rotation, the weight (21) simultaneously presses multiple locking tongues (300) downward, and the locking tongues (300) are stretched along the diameter direction of the clamp chuck (100), so that the rubber ring is clamped to fix the sample. The locking tongue (300) comprises a sliding part (31) and an arc-shaped part (32), the arc-shaped part (32) is arranged on the end of the sliding part (31) away from the clamp chuck (100), and the arc-shaped parts (32) of multiple locking tongues (300) are configured to be a circular ring when the arc-shaped parts (32) of multiple locking tongues (300) abut together.

2. A quick-locking specimen holder for use in a pilling test according to claim 1, characterized in that: The bottom of the sliding part (31) is provided with a groove (34), the inner wall of the groove (34) is connected with the elastic members through spring seats, and the elastic members are springs (35).

3. A quick-locking specimen holder for use in a pilling test according to claim 2, characterized in that: The surface of the clamp chuck (100) is provided with a sliding groove (12) and an arc-shaped groove (11) in communication, the arc-shaped groove (11) and the sliding groove (12) correspond to the shape of the locking tongue (300), so that the locking tongue (300) has a containing space when being retracted on the clamp chuck (100).

4. A quick-locking specimen holder for use in a pilling test according to claim 2, wherein: The upper surface of the clamp chuck (100) is provided with a connecting pipe (13) at the center, and the weight (21) and the cam (23) are arranged on the connecting pipe (13).

5. A quick-locking specimen holder for use in a pilling test according to claim 1, wherein: The outer part of the connecting pipe (13) is fixedly provided with a mounting table (22), the outer part of the mounting table (22) is protrudingly provided with an extension part (2201), and the cam (23) eccentrically rotates on the extension part (2201).

6. A quick-locking specimen holder for use in a pilling test according to claim 5, characterized in that: The outer part of the cam (23) is provided with a handle (2301).

7. A quick-locking specimen holder for use in a pilling test according to claim 6, characterized in that: The arc-shaped outer periphery of the arc-shaped part (32) is recessed inwardly to form an inward recessed groove (3201) for embedding the rubber ring.

8. A quick locking specimen holder for use in a pilling test according to claim 2, wherein: The push block (24) is connected with the upper surface of the sliding part (31), and the push block (24) slides on the upper surface of the clamp chuck (100).

9. A quick-locking specimen holder for use in a pilling test according to claim 2, wherein: The opposite sides of the sliding groove (12) and the sliding part (31) are respectively provided with a limiting key and a limiting groove, the limiting key is slidably connected with the limiting groove to limit the locking tongue (300) from being pulled out of the sliding groove (12).

10. A quick locking specimen holder for use in a pilling test according to claim 4 wherein: ​

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