A puncture resistance test device and test apparatus

Abstract

The utility model relates to a kind of puncture resistance test device and test equipment, including puncture needle clamping mechanism and film clamping mechanism, puncture needle clamping mechanism includes needle clamp base, mounting seat, clamping seat and chuck, the mounting seat is installed on the needle clamp base, the clamping seat is installed on the mounting seat, the clamping seat includes more than three clamping parts, more than three clamping parts are arranged around the center of the clamping seat, the mounting seat is provided with external thread, the chuck is provided with internal thread, the chuck is in cooperation with the external thread by the internal thread, so that more than three clamping parts are inwards retracted, to clamp puncture needle;Different from prior art, the chuck of the utility model is in cooperation with the external thread by internal thread, so that more than three clamping parts clamp puncture needle, fix relatively thin puncture needle of diameter, improve the adaptability of puncture resistance test device.

Description

Technical Field

[0001] This utility model relates to the field of puncture resistance testing technology, and in particular to a puncture resistance testing device and testing equipment. Background Technology

[0002] The prior art, such as the patent publication number CN221238796U, discloses a rapid testing device for needle tip puncture, which includes three parts: a driving device, a needle placement device, and a film clamping device. The driving device includes a rectangular base with a sliding rail on the upper surface of the base. A slider is slidably connected to the sliding rail. The slider has a "convex" shaped structure and at least one threaded hole is formed on the surface of the slider.

[0003] In the process of realizing this utility model, the inventors discovered the following problems in the prior art:

[0004] Existing needle clamping mechanisms are unable to secure needles with relatively small diameters. Utility Model Content

[0005] In view of the above problems, this application provides a puncture resistance testing device and equipment to solve the technical problem that the existing puncture needle clamping mechanism cannot fix puncture needles with relatively small diameter.

[0006] To achieve the above objectives, in a first aspect, this application provides a puncture resistance testing apparatus, comprising:

[0007] A puncture needle clamping mechanism includes a needle clamp base, a mounting base, a clamping seat, and a chuck. The mounting base is mounted on the needle clamp base, and the clamping seat is mounted on the mounting base. The clamping seat includes three or more clamping parts arranged around the center of the clamping seat. The mounting base has external threads, and the chuck has internal threads. The chuck, through the engagement of the internal threads and the external threads, causes the three or more clamping parts to retract inward, thereby clamping the puncture needle.

[0008] A film clamping mechanism is provided, which is disposed opposite to the puncture needle clamping mechanism. The film clamping mechanism includes a cloth clamp cover plate and a cloth clamp base. The cloth clamp cover plate is provided with a first through hole for the puncture needle to pass through, and the cloth clamp base is provided with a second hole for the puncture needle to pass through. The second hole is disposed opposite to the first through hole. The cloth clamp cover plate is fixed to the cloth clamp base by fasteners to fix the film.

[0009] Unlike existing technologies, the technical solution of this application involves mounting the needle clip on the mounting base, with the clamping seat mounted on the mounting base. The clamping seat includes three or more clamping parts arranged around the center of the clamping seat. The mounting base has external threads, and the chuck has internal threads. The chuck, through the engagement of the internal and external threads, causes the three or more clamping parts to retract inward, thereby clamping the puncture needle. During use, the cloth clamp cover is opened, the film to be tested is placed on the cloth clamp base, and the cloth clamp cover is placed on the cloth clamp base. The clamping needle is then clamped in place. The fastener locks the cover plate of the cloth clamp; the clamping seat is placed on the mounting base, the chuck is placed on the clamping seat, and a thin puncture needle is inserted into three or more clamping parts of the clamping seat. The chuck is tightened to clamp the thin puncture needle, so that the puncture needle clamping mechanism and the film clamping mechanism are positioned opposite each other. The puncture needle clamping mechanism or the film clamping mechanism is moved to make the puncture needle pierce the film to be tested and perform the film puncture resistance test. In this way, the chuck can clamp the puncture needle with three or more clamping parts through the cooperation of the internal and external threads, fix the puncture needle with a relatively small diameter, and improve the adaptability of the puncture resistance test device.

[0010] In one embodiment of this utility model, the needle clip base is provided with a first receiving cavity, the mounting base is installed in the first receiving cavity, the needle clip base is provided with a first threaded hole, the first threaded hole is connected to the first receiving cavity, the first threaded hole is provided with a threaded post, and the threaded post is threadedly connected to the first threaded hole.

[0011] Thus, by installing the mounting base in the first receiving cavity and locking the threaded post, the mounting base can be fixed. In other uses, a coarse puncture needle can be placed in the first receiving cavity through the first receiving cavity on the needle clip base, and the coarse puncture needle can be fixed in the first receiving cavity by locking the threaded post.

[0012] In one embodiment of this utility model, the mounting base has a hexagonal cross-sectional shape, and the top of the mounting base is provided with an external thread.

[0013] Thus, the hexagonal cross-sectional shape of the mounting base facilitates the locking of the threaded column to the mounting base, and the external thread on the top of the mounting base facilitates its engagement with the internal thread of the chuck.

[0014] In one embodiment of this utility model, the top of the mounting base is provided with a second receiving hole, the bottom of the clamping base is disposed in the second receiving hole, and the clamping base includes four clamping parts disposed around the center of the clamping base, the clamping parts protruding from the second receiving hole.

[0015] Thus, the bottom of the clamping seat is placed in the second receiving hole. As the clamp head is screwed down, it squeezes the four clamping seats, causing them to move inward and clamp the puncture needle with a relatively small diameter.

[0016] In one embodiment of this utility model, the bottom of the cloth clamp cover plate is provided with a third receiving cavity, and the cloth clamp base is provided with a protrusion. The third receiving cavity cooperates with the protrusion, and the inner diameter of the third receiving cavity is larger than the outer diameter of the protrusion.

[0017] Thus, by cooperating with the third receiving cavity and the protrusion, the film to be tested is placed on the protrusion. The center of the protrusion is the second hole. The bottom of the cloth clamp cover is placed on the protrusion to fix the film to be tested. The first through hole is connected to the third receiving cavity, which facilitates the fixing of the film to be tested.

[0018] In one embodiment of this utility model, the film clamping mechanism includes a first fastener and a second fastener. The fabric clamp cover plate is provided with a first mounting part and a second mounting part. The bottom of the first fastener is hinged to one side of the fabric clamp base, and the top of the first fastener is fixed to the top of the fabric clamp cover plate by a butterfly nut. The bottom of the second fastener is hinged to the other side of the fabric clamp base, and the top of the second fastener is fixed to the top of the fabric clamp cover plate by a butterfly nut.

[0019] Thus, the first mounting part and the second mounting part are mounting openings. In use, the cloth clamp cover plate is placed on the cloth clamp base, the first fastener is rotated so that the external thread of the first fastener rotates above the cloth clamp cover plate, and one side of the cloth clamp cover plate is fixed to one side of the cloth clamp base by the butterfly nut. The second fastener is rotated so that the external thread of the second fastener rotates above the cloth clamp cover plate, and the other side of the cloth clamp cover plate is fixed to the other side of the cloth clamp base by the butterfly nut, thus completing the fixation of the film to be tested.

[0020] In one embodiment of this utility model, the cloth clip base has a structure that is larger at the top and smaller at the bottom.

[0021] In this way, by using a structure where the fabric clip base is larger at the top and smaller at the bottom, the material of the fabric clip base is saved, and it is convenient to fix the fabric clip base.

[0022] In one embodiment of this utility model, the top of the needle clip base is provided with a first mounting hole, and the bottom of the cloth clip base is provided with a second mounting hole.

[0023] Thus, the top of the needle clamp base is installed on the upper part of the tensile testing machine through the cooperation of the first mounting hole and the pin, and the bottom of the cloth clamp base is installed on the lower part of the tensile testing machine through the cooperation of the second mounting hole and the pin. The tensile testing machine makes the puncture needle clamping mechanism and the film clamping mechanism move closer to each other or further away from each other.

[0024] In one embodiment of this utility model, the first through hole is located at the center of the cloth clamp cover plate, and the second hole is located at the center of the cloth clamp base.

[0025] This facilitates puncture of the test film between the fabric clamp cover and the fabric clamp base.

[0026] To achieve the above objectives, in a second aspect, the inventors provide a puncture resistance testing device, comprising the puncture resistance testing apparatus described in any one of the above claims.

[0027] Unlike existing technologies, the puncture resistance testing device of this application has a clamp that uses the cooperation of internal and external threads to clamp the puncture needle with three or more clamping parts, thus fixing the puncture needle with a relatively small diameter and improving the adaptability of the puncture resistance testing device.

[0028] The above description of the utility model is merely an overview of the technical solution of this application. In order to enable those skilled in the art to better understand the technical solution of this application and to implement it based on the description and drawings, and to make the above-mentioned objectives and other objectives, features and advantages of this application easier to understand, the following description is provided in conjunction with the specific embodiments and drawings of this application. Attached Figure Description

[0029] The accompanying drawings are only used to illustrate the principles, implementation methods, applications, features, and effects of specific embodiments of this application and other related content, and should not be considered as limitations on this application.

[0030] In the accompanying drawings of the instruction manual:

[0031] Figure 1 This is a schematic diagram of the puncture resistance testing device according to one embodiment of this application;

[0032] Figure 2 This is a schematic diagram of the structure of a puncture needle clamping mechanism according to an embodiment of this application;

[0033] Figure 3 This is a schematic diagram of the structure of a film clamping mechanism according to an embodiment of this application;

[0034] Figure 4 This is a bottom view of a fabric clip cover plate according to an embodiment of this application;

[0035] Figure 5 This is a schematic diagram of the structure of the mounting base, clamping base, and chuck according to one embodiment of this application;

[0036] Figure 6 This is a schematic diagram of the puncture resistance testing device according to one embodiment of this application.

[0037] The reference numerals used in the above figures are explained as follows:

[0038] 1. Puncture needle clamping mechanism; 11. Needle clamp base; 111. First receiving cavity; 112. First threaded hole; 113. First mounting hole; 12. Mounting seat; 121. External thread; 122. Second receiving hole; 13. Clamping seat; 131. Clamping part; 14. Clamp head; 15. Threaded post.

[0039] 2. Film clamping mechanism; 21. Fabric clamp cover plate; 211. First through hole; 212. Third receiving cavity; 213. First mounting part; 214. Second mounting part; 22. Fabric clamp base; 221. Second hole; 222. Protrusion; 223. Second mounting hole; 23. First fastener; 24. Second fastener.

[0040] 3. Puncture needle. Detailed Implementation

[0041] To illustrate the possible application scenarios, technical principles, implementable specific solutions, and achievable objectives and effects of this application in detail, the following description, in conjunction with the listed specific embodiments and accompanying drawings, provides a detailed explanation. The embodiments described herein are merely illustrative of the technical solutions of this application and are therefore intended to limit the scope of protection of this application.

[0042] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0043] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.

[0044] In the description of this application, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, X and / or Y means: X exists, Y exists, and X and Y exist simultaneously. Additionally, the character " / " in this document generally indicates that the preceding and following objects have an "or" logical relationship.

[0045] In this application, terms such as “first” and “second” are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy or order relationship between these entities or operations.

[0046] Unless otherwise specified, the use of terms such as “comprising,” “including,” “having,” or other similar expressions in this application is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a list of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.

[0047] Similar to the understanding in the Examination Guidelines, in this application, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments in this application, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.

[0048] In the description of the embodiments of this application, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the purpose of describing the specific embodiments of this application or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0049] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this application, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. For those skilled in the art to which this application pertains, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0050] Existing needle clamping mechanisms are unable to hold needles with relatively small diameters. There is a lack of dedicated clamping solutions for needle-shaped, filamentous, and other minute specimens. Laboratories must purchase additional clamps or manually modify them, resulting in high costs and significant operational risks.

[0051] In view of this, the present application provides a puncture resistance testing device and equipment, including a puncture needle clamping mechanism 1 and a film clamping mechanism 2. The puncture needle clamping mechanism 1 includes a needle clamp base 11, a mounting base 12, a clamping base 13, and a chuck 14. The mounting base 12 is mounted on the needle clamp base 11, and the clamping base 13 is mounted on the mounting base 12. The clamping base 13 includes three or more clamping parts 131, which are arranged around the center of the clamping base 13. The mounting base 12 is provided with an external thread 121, and the chuck 14 is provided with an internal thread. The chuck 14, through the cooperation of the internal thread and the external thread 121, causes the three or more clamping parts 131 to contract inward, thereby clamping the puncture needle 3. In this way, the chuck 14, through the cooperation of the internal thread and the external thread 121, can make the three or more clamping parts 131 clamp the puncture needle 3, fix the puncture needle 3 with a relatively small diameter, and improve the adaptability of the puncture resistance testing device.

[0052] According to some embodiments of this application, please refer to Figures 1 to 6 This embodiment relates to a puncture resistance testing device, including a puncture needle clamping mechanism 1 and a film clamping mechanism 2. The puncture needle clamping mechanism 1 includes a needle clamp base 11, a mounting base 12, a clamping base 13, and a clamp 14. The mounting base 12 is mounted on the needle clamp base 11, and the clamping base 13 is mounted on the mounting base 12. The clamping base 13 includes three or more clamping parts 131, which are arranged around the center of the clamping base 13. The mounting base 12 is provided with an external thread 121, and the clamp 14 is provided with an internal thread. The clamp 14, through the cooperation of the internal thread and the external thread 121, causes the three or more clamping parts 131 to retract inward, thereby clamping the puncture needle 3.

[0053] The film clamping mechanism 2 is arranged opposite to the puncture needle clamping mechanism 1. The film clamping mechanism 2 includes a cloth clamp cover plate 21 and a cloth clamp base 22. The cloth clamp cover plate 21 is provided with a first through hole 211 for the puncture needle 3 to pass through. The cloth clamp base 22 is provided with a second hole 221 for the puncture needle 3 to pass through. The second hole 221 is arranged opposite to the first through hole 211. The cloth clamp cover plate 21 is fixed to the cloth clamp base 22 by fasteners to fix the film.

[0054] It can accommodate needle-shaped samples with a minimum diameter of 0.1 mm; effectively solves the sample clamping problem, meets the national standard requirements for puncture resistance testing of plastic films and sheets, and is applicable to multiple fields of material mechanical property testing, with broad application prospects.

[0055] In this embodiment, the needle clip base 11 is mounted on the mounting base 12, and the clamping seat 13 is mounted on the mounting base 12. The clamping seat 13 includes three or more clamping parts 131, which are arranged around the center of the clamping seat 13. The mounting base 12 is provided with external threads 121, and the chuck 14 is provided with internal threads. The chuck 14, through the cooperation of the internal threads and external threads 121, causes the three or more clamping parts 131 to retract inward, thereby clamping the puncture needle 3. During use, the cloth clamp cover plate 21 is opened, and the film to be tested is placed on the cloth clamp base. On the 22, the cloth clamp cover plate 21 covers the cloth clamp base 22 and is locked with fasteners; the clamping seat 13 is placed on the mounting seat 12, the clamp 14 is placed on the clamping seat 13, the thin puncture needle 3 is placed into three or more clamping parts 131 of the clamping seat 13, the clamp 14 is tightened to make the clamping seat 13 clamp the thin puncture needle 3, the puncture needle clamping mechanism 1 and the film clamping mechanism 2 are set opposite to each other, the puncture needle clamping mechanism 1 or the film clamping mechanism 2 is moved to make the puncture needle 3 puncture the film to be tested and the film puncture resistance test is carried out.

[0056] Thus, the clamp 14, through the engagement of the internal thread and the external thread 121, can clamp the puncture needle 3 with three or more clamping parts 131, fix the puncture needle 3 with a relatively small diameter, and improve the adaptability of the puncture resistance testing device.

[0057] According to some embodiments of this application, optionally, the needle clip base 11 is provided with a first receiving cavity 111, the mounting base 12 is installed in the first receiving cavity 111, the needle clip base 11 is provided with a first threaded hole 112, the first threaded hole 112 is connected to the first receiving cavity 111, the first threaded hole 112 is provided with a threaded post 15, and the threaded post 15 is threadedly connected to the first threaded hole 112.

[0058] Thus, by installing the mounting base 12 into the first receiving cavity 111 and locking the threaded post 15, the mounting base 12 can be fixed. In other applications, a coarse puncture needle 3 can be placed within the first receiving cavity 111 on the needle clip base 11, and the coarse puncture needle 3 can be fixed within the first receiving cavity 111 by locking the threaded post 15. Figure 1 As shown.

[0059] In other words, if a fixed, thick puncture needle 3 is used, simply place the puncture needle 3 into the first receiving cavity 111 and tighten the threaded post 15. Figure 1 As shown;

[0060] If a thin puncture needle 3 is being fixed, the chuck 14, through the engagement of its internal and external threads 121, clamps the puncture needle 3 with three or more clamping parts 131, fixing the puncture needle 3 onto the clamping seat 13 and the mounting seat 12. Then, the mounting seat 12 is placed inside the first receiving cavity 111, and the threaded post 15 is locked in place. Figure 2 As shown;

[0061] According to some embodiments of this application, optionally, such as Figure 5 As shown, the mounting base 12 has a hexagonal cross-sectional shape, and the top of the mounting base 12 is provided with an external thread 121.

[0062] Thus, the hexagonal cross-sectional shape of the mounting base 12 facilitates the locking of the threaded post 15 onto the mounting base 12, and the external thread 121 on the top of the mounting base 12 facilitates its engagement with the internal thread of the chuck 14.

[0063] According to some embodiments of this application, optionally, the top of the mounting base 12 is provided with a second receiving hole 122, the bottom of the clamping base 13 is disposed in the second receiving hole 122, and the clamping base 13 includes four clamping parts 131 disposed around the center of the clamping base 13, the clamping parts 131 protruding from the second receiving hole 122.

[0064] Thus, the bottom of the clamping seat 13 is placed in the second receiving hole 122. As the clamp 14 is screwed down, it squeezes the four clamping seats 13, causing the four clamping seats 13 to move inward and clamp the puncture needle 3 with a relatively small diameter.

[0065] According to some embodiments of this application, optionally, such as Figure 3 As shown, the bottom of the cloth clamp cover plate 21 is provided with a third receiving cavity 212, and the cloth clamp base 22 is provided with a protrusion 222. The third receiving cavity 212 and the protrusion 222 cooperate with each other, and the inner diameter of the third receiving cavity 212 is larger than the outer diameter of the protrusion 222.

[0066] The shape of the third receiving cavity 212 matches the shape of the protrusion 222. The inner diameter of the third receiving cavity 212 is larger than the outer diameter of the protrusion 222. For example, the inner diameter of the third receiving cavity 212 is 44 mm and the outer diameter of the protrusion 222 is 40 mm. The film is placed on the protrusion 222 and the cloth clamp cover plate 21 is pressed down. A gap is left between the third receiving cavity 212 and the protrusion 222 to accommodate the film, which facilitates the fixing of the film.

[0067] Thus, through the cooperation of the third receiving cavity 212 and the protrusion 222, the film to be tested is placed on the protrusion 222. The center of the protrusion 222 is the second hole 221. The bottom of the cloth clamp cover plate 21 is placed on the protrusion 222 to fix the film to be tested. The first through hole 211 is connected to the third receiving cavity 212 to facilitate the fixing of the film to be tested.

[0068] According to some embodiments of this application, optionally, such as Figure 3 and Figure 4As shown, the film clamping mechanism 2 includes a first fastener 23 and a second fastener 24. The cloth clamp cover plate 21 is provided with a first mounting part 213 and a second mounting part 214. The bottom of the first fastener 23 is hinged to one side of the cloth clamp base 22, and the top of the first fastener 23 is fixed to the top of the cloth clamp cover plate 21 by a butterfly nut. The bottom of the second fastener 24 is hinged to the other side of the cloth clamp base 22, and the top of the second fastener 24 is fixed to the top of the cloth clamp cover plate 21 by a butterfly nut.

[0069] The top of the first fastener 23 and the second fastener 24 are provided with external threads, and the butterfly nut cooperates with the external threads to lock the cloth clamp base 22 between the cloth clamp base 22.

[0070] Thus, the first mounting part 213 and the second mounting part 214 are mounting openings. In use, the cloth clamp cover plate 21 is placed on the cloth clamp base 22, the first fastener 23 is rotated, and the external thread 121 of the first fastener 23 rotates above the cloth clamp cover plate 21. One side of the cloth clamp cover plate 21 is fixed to one side of the cloth clamp base 22 by the butterfly nut. The second fastener 24 is rotated, and the external thread 121 of the second fastener 24 rotates above the cloth clamp cover plate 21. The other side of the cloth clamp cover plate 21 is fixed to the other side of the cloth clamp base 22 by the butterfly nut, thus completing the fixation of the film to be tested.

[0071] According to some embodiments of this application, optionally, the cloth clip base 22 has a structure that is larger at the top and smaller at the bottom.

[0072] Thus, by using a structure where the fabric clip base 22 is larger at the top and smaller at the bottom, the material of the fabric clip base 22 is saved, and it is convenient to fix the fabric clip base 22.

[0073] According to some embodiments of this application, optionally, the top of the needle clip base 11 is provided with a first mounting hole 113, and the bottom of the cloth clip base 22 is provided with a second mounting hole 223.

[0074] Thus, the top of the needle clamp base 11 is installed on the upper part of the tensile testing machine through the cooperation of the first mounting hole 113 and the pin, and the bottom of the cloth clamp base 22 is installed on the lower part of the tensile testing machine through the cooperation of the second mounting hole 223 and the pin. The tensile testing machine makes the puncture needle clamping mechanism 1 and the film clamping mechanism 2 move closer to each other or further away from each other.

[0075] In this embodiment, the tensile testing machine is a conventional technical means, and the tensile testing machine provides power for the mutual movement between the puncture needle clamping mechanism 1 and the film clamping mechanism 2.

[0076] According to some embodiments of this application, optionally, the first through hole 211 is located at the center of the cloth clamp cover plate 21, and the second hole 221 is located at the center of the cloth clamp base 22.

[0077] This facilitates the puncture needle 3 to puncture the membrane to be tested between the cloth clamp cover plate 21 and the cloth clamp base 22.

[0078] This embodiment also relates to a puncture resistance testing device, including any of the above-mentioned puncture resistance testing apparatus and tensile testing machine.

[0079] The tensile testing machine provides power for the mutual movement between the puncture needle clamping mechanism 1 and the film clamping mechanism 2.

[0080] Unlike existing technologies, the puncture resistance testing device of this application has a clamp 14 that, through the cooperation of internal and external threads 121, allows three or more clamping parts 131 to clamp the puncture needle 3, fixing the puncture needle 3 with a relatively small diameter, thereby improving the adaptability of the puncture resistance testing device.

[0081] Those skilled in the art will understand that although some embodiments herein include certain features included in other embodiments but not others, combinations of features from different embodiments are intended to be within the scope of this application and form different embodiments. For example, in the claims, any of the claimed embodiments can be used in any combination.

[0082] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A puncture resistance testing device, characterized in that, include: A puncture needle clamping mechanism includes a needle clamp base, a mounting base, a clamping base, and a clamp. The mounting base is mounted on the needle clamp base, and the clamping base is mounted on the mounting base. The clamping base includes three or more clamping parts arranged around the center of the clamping base. The mounting base is provided with external threads, and the clamp is provided with internal threads. The clamp, through the cooperation of the internal threads and the external threads, causes the three or more clamping parts to retract inward, thereby clamping the puncture needle. as well as A film clamping mechanism is provided, which is disposed opposite to the puncture needle clamping mechanism. The film clamping mechanism includes a cloth clamp cover plate and a cloth clamp base. The cloth clamp cover plate is provided with a first through hole for the puncture needle to pass through, and the cloth clamp base is provided with a second hole for the puncture needle to pass through. The second hole is disposed opposite to the first through hole. The cloth clamp cover plate is fixed to the cloth clamp base by fasteners to fix the film.

2. The puncture resistance testing apparatus according to claim 1, characterized in that, The needle clip base is provided with a first receiving cavity, the mounting base is installed in the first receiving cavity, the needle clip base is provided with a first threaded hole, the first threaded hole is connected to the first receiving cavity, the first threaded hole is provided with a threaded post, and the threaded post is threadedly connected to the first threaded hole.

3. The puncture resistance testing apparatus according to claim 2, characterized in that, The mounting base has a hexagonal cross-sectional shape, and the top of the mounting base is provided with an external thread.

4. The puncture resistance testing apparatus according to claim 3, characterized in that, The top of the mounting base is provided with a second receiving hole, and the bottom of the clamping base is disposed in the second receiving hole. The clamping base includes four clamping parts disposed around the center of the clamping base, and the clamping parts protrude from the second receiving hole.

5. The puncture resistance testing apparatus according to claim 1, characterized in that, The bottom of the fabric clamp cover plate is provided with a third receiving cavity, and the fabric clamp base is provided with a protrusion. The third receiving cavity cooperates with the protrusion, and the inner diameter of the third receiving cavity is larger than the outer diameter of the protrusion.

6. The puncture resistance testing apparatus according to claim 5, characterized in that, The film clamping mechanism includes a first fastener and a second fastener. The fabric clamp cover plate is provided with a first mounting part and a second mounting part. The bottom of the first fastener is hinged to one side of the fabric clamp base, and the top of the first fastener is fixed to the top of the fabric clamp cover plate by a butterfly nut. The bottom of the second fastener is hinged to the other side of the fabric clamp base, and the top of the second fastener is fixed to the top of the fabric clamp cover plate by a butterfly nut.

7. The puncture resistance testing apparatus according to claim 6, characterized in that, The fabric clip base has a structure that is larger at the top and smaller at the bottom.

8. The puncture resistance testing apparatus according to claim 7, characterized in that, The needle clip base has a first mounting hole at its top and a second mounting hole at its bottom.

9. The puncture resistance testing apparatus according to claim 1, characterized in that, The first through hole is located at the center of the fabric clamp cover plate, and the second hole is located at the center of the fabric clamp base.

10. A puncture resistance testing device, characterized in that, Includes the puncture resistance testing apparatus as described in any one of claims 1 to 9.

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