Geomembrane puncture resistance detection device

Abstract

The utility model discloses a geomembrane anti-puncture performance detection device in the technical field of geomembranes. The geomembrane anti-puncture performance detection device comprises a supporting plate, a rotating disc, a driving cylinder, a lifting seat, a pressure sensor, a puncture rod, a first positioning mechanism, a rotating ring, a supporting ring, a plurality of supporting rods, a plurality of clamping mechanisms and a second positioning mechanism. Free adjustment of three-dimensional angles is achieved through the rotating disc and the driving cylinder, so that the multi-direction puncture test requirements are met, the puncture working conditions of landforms such as slopes and curved surfaces can be accurately simulated, and the working condition coverage rate is increased; the angle is locked after adjustment through the first positioning mechanism and the second positioning mechanism, so that the test stability is ensured; the puncture force is monitored in real time through the pressure sensor, so that dynamic acquisition of data is realized, and the measurement precision is ensured; and finally, through a plurality of uniformly distributed clamping mechanisms, the sample is uniformly stressed during testing, so that the testing stability is improved.

Description

Technical Field

[0001] This utility model relates to the field of geomembrane technology, specifically to a device for testing the puncture resistance of geomembranes. Background Technology

[0002] Geomembrane is a thin sheet-like impermeable membrane made of polymer synthetic materials. It has extremely low permeability and is widely used in roadbed reinforcement, slope protection, landfill seepage prevention and other scenarios. The reliability of its mechanical properties (such as tensile strength and puncture resistance) is directly related to the safety and service life of the project.

[0003] In current standards, the puncture resistance test mostly adopts the vertical puncture test method, that is, the sample is impacted or pressured by a puncture rod at a fixed angle; however, in actual engineering, geotextiles are often laid on complex terrains such as slopes and curved surfaces, and when subjected to external forces, the puncture direction is at a non-perpendicular angle to the material surface.

[0004] However, existing testing devices have significant limitations. They cannot simulate real working conditions and can only perform fixed vertical punctures. As a result, they cannot reflect the inclined stress state of the slope terrain, leading to a large deviation between the test results and the actual performance. Although some technologies attempt to indirectly adjust the angle by tilting the sample, they have problems such as limited adjustment range, low accuracy, and complicated operation, and are difficult to adapt to standardized testing procedures. Utility Model Content

[0005] The purpose of this invention is to provide a geomembrane puncture resistance testing device, which solves the technical problem that existing testing devices have a single testing angle and cannot simulate complex working conditions.

[0006] This utility model discloses a device for testing the puncture resistance of geomembranes, comprising:

[0007] Support plate;

[0008] A rotating disk is vertically mounted on the bottom surface of the support plate, with its top extending onto the support plate and having a receiving groove.

[0009] A drive cylinder is installed within the receiving groove;

[0010] The lifting seat is installed on the telescopic end of the drive cylinder, and has an insertion hole on its top surface;

[0011] A pressure sensor is installed at the bottom of the socket;

[0012] The puncture rod has its bottom end located inside the insertion hole and is fitted to the pressure sensor.

[0013] The first positioning mechanism is installed on the bottom surface of the support plate and is used to limit and fix the rotating disk.

[0014] A rotating ring is horizontally mounted on the top surface of the support plate and sleeved around the rotating disk;

[0015] A support ring is horizontally arranged above the rotating disk and coaxially arranged with the rotating ring;

[0016] Multiple support rods are installed between the rotating ring and the support ring;

[0017] Multiple clamping mechanisms are evenly installed on the top surface of the support ring;

[0018] The second positioning mechanism is installed on the top surface of the support plate and is used to limit and fix the rotating ring.

[0019] This application achieves free three-dimensional angle adjustment through a rotating disk and a drive cylinder, thereby adapting to the needs of multi-directional puncture testing and accurately simulating puncture conditions on terrains such as slopes and curved surfaces, thus improving the coverage of testing conditions. Furthermore, the first and second positioning mechanisms lock the angle after adjustment, ensuring test stability. In addition, the pressure sensor monitors the puncture force in real time, enabling dynamic data acquisition and ensuring measurement accuracy. Finally, multiple evenly distributed clamping mechanisms ensure that the sample is subjected to uniform force during testing, improving test stability.

[0020] Based on the above technical solution, the solution of this application can be further improved as follows:

[0021] Preferably, it includes:

[0022] A semi-circular dial is vertically mounted on the top surface of the support plate and located beside the rotating disk;

[0023] The first indicator needle is installed on the side of the rotating disk and matches the semi-circular scale. With this solution, the operator can quickly locate the preset angle, which improves the testing efficiency. The structure is simple and compact and has high reliability.

[0024] Preferably, it includes:

[0025] An annular support base is installed on the top surface of the support plate, and the rotating ring is embedded in the top surface;

[0026] A graduated ring is coaxially mounted on the top surface of the annular support base;

[0027] The second indicator is mounted on the support rod and matches the scale ring. This design quantifies the angle of horizontal rotation, improves the repeatability and accuracy of the test, and optimizes the installation of the rotating ring, thus improving rotational stability.

[0028] Preferably, the second positioning mechanism includes:

[0029] The first screw is threaded to the side of the annular support seat, and one end can extend into the annular support seat and abut against the rotating ring.

[0030] The knob is located at the end of the first screw away from the rotating ring. This solution allows for convenient and quick locking of the rotating ring, and it has a simple structure, is easy to operate, and has low production costs.

[0031] Preferably, it includes:

[0032] The housing is located at the bottom of the support plate and covers the rotating disk;

[0033] The rotating shaft is inserted into the center of the rotating disk, and its two ends are rotatably connected to the housing. This design protects the internal structure, prevents dust or external interference, provides more stable rotational support, and reduces friction or wear.

[0034] Preferably, the rotating disk has limiting rings on both outer edges, and the first positioning mechanism includes:

[0035] The placement box is installed on the bottom surface of the support plate;

[0036] The first rotating wheel is arranged outside the placement box;

[0037] The second screw is horizontally rotatably installed inside the housing, with one end extending out of the housing and connected to the first rotating wheel;

[0038] The drive block is threaded onto the second screw.

[0039] A concave block, with the rotating disk extending into its inner side;

[0040] Two pressure blocks are provided on both sides of the inner wall of the concave block;

[0041] Multiple connecting rods, one end of which is connected to the drive block, and the other end extends out of the mounting box and connects to the concave block; this solution not only ensures efficient locking of the rotating disk at any angle, but also avoids the risk of deformation caused by stress concentration on one side, thus improving the stability of the locking.

[0042] Preferably, the clamping mechanism includes:

[0043] The L-shaped block is slidably installed on the top surface of the support ring;

[0044] A limiting plate is provided on the top surface of the support ring and is located on the side of the L-shaped block away from the rotating disk;

[0045] Second wheel;

[0046] The third screw is connected at one end to the second rotating wheel and at the other end to the L-shaped block for rotation, and is threaded onto the limiting plate.

[0047] The fourth screw is vertically installed on the top surface of the L-shaped block;

[0048] The clamping plate is arranged horizontally and slidably connected to the inner side of the L-shaped block, and is movably sleeved on the fourth screw.

[0049] A wing nut is threaded onto the fourth screw and positioned above the clamping plate. This design securely clamps the sample and allows for quick and easy tension adjustment, thus ensuring testing effectiveness and improving operational efficiency.

[0050] Preferably, the bottom surface of the clamping plate is provided with a locking block, and the top surface of the L-shaped block is provided with a locking groove that matches the locking block; by adopting this solution, the geomembrane sample can be clamped and fixed more securely, and the occurrence of its falling off can be avoided, thus ensuring the stability of the test.

[0051] Through the above technical solution, this utility model achieves the following beneficial effects:

[0052] This application achieves free three-dimensional angle adjustment through a rotating disk and a drive cylinder, thereby adapting to the needs of multi-directional puncture testing and accurately simulating puncture conditions on terrains such as slopes and curved surfaces, thus improving the coverage of testing conditions. Furthermore, the first and second positioning mechanisms lock the angle after adjustment, ensuring test stability. In addition, the pressure sensor monitors the puncture force in real time, enabling dynamic data acquisition and ensuring measurement accuracy. Finally, multiple evenly distributed clamping mechanisms ensure that the sample is subjected to uniform force during testing, improving test stability. Attached Figure Description

[0053] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0054] Figure 1 This is a schematic diagram of the geomembrane puncture resistance testing device described in a specific embodiment;

[0055] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0056] Figure 3 for Figure 1 Enlarged view of point B in the middle;

[0057] Figure 4 for Figure 1 The front view of the geomembrane puncture resistance testing device shown.

[0058] Figure 5 for Figure 1 The diagram shows a top-view cross-section of the geomembrane puncture resistance testing device.

[0059] Figure 6 for Figure 3 A top sectional view of the first positioning mechanism shown;

[0060] Explanation of reference numerals in the attached figures:

[0061] 1. Support plate; 2. Rotary disk; 3. Drive cylinder; 4. Lifting seat; 5. Pressure sensor; 6. Puncture rod; 7. First positioning mechanism; 8. Rotary ring; 9. Support ring; 10. Support rod; 11. Clamping mechanism; 12. Second positioning mechanism; 13. Semicircular dial; 14. First indicator needle; 15. Annular support seat; 16. Scale ring; 17. Second indicator needle; 18. Housing; 19. Rotating shaft;

[0062] 201, receiving slot; 401, insertion hole;

[0063] 71. Placement box; 72. First rotating wheel; 73. Second screw; 74. Drive block; 75. Concave block; 76. Pressure block; 77. Connecting rod; 111. L-shaped block; 1111. Slot; 112. Limiting plate; 113. Second rotating wheel; 114. Third screw; 115. Fourth screw; 116. Clamping plate; 117. Wing nut; 118. Locking block; 121. First screw; 122. Knob. Detailed Implementation

[0064] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0065] First, it should be noted that some directional terms used in the following description to clearly illustrate the technical solution of this utility model, such as the terms "upper," "lower," "front," "back," "vertical," "horizontal," "top," "bottom," "inner," and "outer," are all derived from the normal orientation of the components in the geomembrane puncture resistance testing device. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0066] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features.

[0067] In this application, unless otherwise expressly 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 direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0068] To better understand the above technical solutions, the following will provide a detailed description of the technical solutions in conjunction with the accompanying drawings and specific embodiments.

[0069] Example:

[0070] like Figure 1 As shown in the figure, this application discloses a geomembrane puncture resistance testing device for testing the puncture resistance of geomembranes and can flexibly adjust the puncture angle. Its specific structure includes: a support plate 1, a rotating disk 2, a drive cylinder 3, a lifting seat 4, a pressure sensor 5, a puncture rod 6, a first positioning mechanism 7, a rotating ring 8, a support ring 9, multiple support rods 10, multiple clamping mechanisms 11, and a second positioning mechanism 12.

[0071] The support plate 1 is arranged horizontally and has legs at the four corners, serving as the main support platform.

[0072] The rotating disk 2 is vertically mounted on the bottom surface of the support plate 1 and extends through the top of the support plate 1, and has a receiving groove 201; it is used to vertically rotate and adjust the vertical tilt angle of the piercing rod 6, thereby simulating the force scenario of the slope.

[0073] The drive cylinder 3 is installed in the receiving groove 201 to provide puncture power.

[0074] The lifting seat 4 is installed on the telescopic end of the drive cylinder 3, and the top surface is provided with an insertion hole 401 for transmitting pressure to the puncture rod 6 and keeping the puncture rod 6 stable.

[0075] Pressure sensor 5 is installed at the bottom of the insertion hole 401 to monitor the puncture force in real time, thereby enabling dynamic data acquisition.

[0076] The bottom end of the puncture rod 6 is located inside the insertion hole 401 and is fitted with the pressure sensor 5; it directly contacts the puncture rod 6, thereby eliminating the force transmission path deviation, ensuring measurement accuracy, and guaranteeing data reliability.

[0077] The first positioning mechanism 7 is installed on the bottom surface of the support plate 1 to limit and fix the rotating disk 2, thereby locking the angle and ensuring test stability.

[0078] A rotating ring 8 is horizontally mounted on the top surface of the support plate 1 and fitted over the rotating disk 2; it is used to adjust the horizontal rotation angle of the geomembrane sample.

[0079] The support ring 9 is horizontally arranged above the rotating disk 2 and coaxially arranged with the rotating ring 8. It serves as the mounting base for the clamping mechanism 11, ensuring the stability of the test.

[0080] Multiple support rods 10 are installed between the rotating ring 8 and the support ring 9; they are used to connect and fix the support ring 9, ensuring the stability of the structure.

[0081] Multiple clamping mechanisms 11 are evenly installed on the top surface of the support ring 9; used to fix the geomembrane sample, and the multi-point clamping ensures the uniformity of the force on the sample and avoids slippage during the test.

[0082] The second positioning mechanism 12 is installed on the top surface of the support plate 1 to limit and fix the rotating ring 8, thereby locking its angle and ensuring test stability.

[0083] The working principle of the above technical solution is as follows:

[0084] During testing, the geomembrane sample is clamped and fixed by multiple clamping mechanisms 11 to prevent it from slipping and falling off during the test.

[0085] When adjusting the vertical tilt angle, the rotating disk 2 is rotated, which drives the puncture rod 6 to rotate synchronously. After the adjustment is completed, the rotating disk 2 is locked by the first positioning mechanism 7 to prevent it from rotating accidentally during the test, so as to ensure measurement accuracy and data reliability.

[0086] When adjusting the horizontal azimuth angle, rotate the rotating ring 8, causing the rotating ring 8 to drive the support ring 9 to rotate through the support rod 10. This causes the clamping mechanism 11 on the support ring 9 to rotate as well, thereby enabling the geomembrane fixed by the clamping mechanism 11 to complete the azimuth adjustment. After the adjustment is completed, the rotating ring 8 is locked by the second positioning mechanism 12 to prevent it from rotating accidentally during the test, so as to ensure measurement accuracy and data reliability.

[0087] When testing the puncture resistance, the drive cylinder 3 is activated, which pushes the lifting seat 4, pressure sensor 5 and puncture rod 6 to move together. As a result, the puncture rod 6 extends out of the receiving groove 201 and completes the puncture of the geomembrane sample. The pressure sensor 5 monitors the puncture force in real time and transmits it to the control system, realizing dynamic data acquisition.

[0088] This invention achieves free three-dimensional angle adjustment through the rotating disk 2 and the drive cylinder 3, thereby adapting to the needs of multi-directional puncture testing and accurately simulating puncture conditions on slopes, curved surfaces, and other terrains, thus improving the coverage of testing conditions. Furthermore, the first positioning mechanism 7 and the second positioning mechanism 12 lock the angle after adjustment, ensuring test stability. The pressure sensor 5 monitors the puncture force in real time, enabling dynamic data acquisition and ensuring measurement accuracy. Finally, multiple evenly distributed clamping mechanisms 11 ensure that the sample is subjected to uniform force during testing, improving test stability.

[0089] In some embodiments, such as Figure 4 As shown, it includes:

[0090] A semi-circular dial 13 is vertically mounted on the top surface of the support plate 1 and located beside the rotating disk 2. It is used to provide angle markings from 0° to 180° to quantify the vertical tilt angle of the rotating disk 2.

[0091] The first indicator needle 14 is installed on the side of the rotating disk 2 and matches the semi-circular scale 13 to display the actual tilt angle of the rotating disk 2 in real time.

[0092] When adjusting the vertical tilt angle, adjust the angle of the rotating disk 2. When the angle indicated by the first indicator 14 on the semi-circular scale 13 reaches the preset angle, lock the angle through the first positioning mechanism 7.

[0093] With the above settings, operators can quickly locate the preset angle, improving testing efficiency. The structure is simple, compact, and highly reliable.

[0094] In some embodiments, such as Figure 3 and Figure 5 As shown, it includes:

[0095] An annular support 15 is installed on the top surface of the support plate 1, and a rotating ring 8 is embedded on the top surface. As a base, it improves stability, enhances the durability of the structure and the smoothness of rotation.

[0096] The scale ring 16 is coaxially mounted on the top surface of the annular support 15 and has a 360° annular scale for indicating the horizontal rotation angle of the rotating ring 8.

[0097] The second indicator 17 is mounted on a support rod 10 and matches the scale ring 16 to accurately display the angle of horizontal rotation.

[0098] When adjusting the horizontal azimuth angle, adjust the angle of the rotating ring 8. When the angle indicated by the second indicator 17 on the scale ring 16 reaches the preset angle, lock the angle through the second positioning mechanism 12.

[0099] The above settings quantify the angle of horizontal rotation, improving the repeatability and accuracy of the test, and also optimize the installation of the rotating ring 8, improving rotational stability.

[0100] Based on the above embodiments, such as Figure 3 As shown, the second positioning mechanism 12 includes:

[0101] The first screw 121 is threaded to the side of the annular support 15, and one end can extend into the annular support 15 and abut against the rotating ring 8.

[0102] The knob 122 is located at the end of the first screw 121 away from the rotating ring 8.

[0103] Rotating the knob 122 can drive the first screw 121 to screw into the annular support 15, thereby abutting against the rotating ring 8 and locking the rotating ring 8.

[0104] With the above settings, the rotating ring 8 can be locked easily and quickly, and its structure is simple, easy to operate, and has low production cost.

[0105] In some embodiments, such as Figure 1 , Figure 4 and Figure 6 As shown, it includes:

[0106] The housing 18 is located at the bottom of the support plate 1 and covers the rotating disk 2 to provide protection and prevent the rotating disk 2 from being disturbed;

[0107] The rotating shaft 19 is inserted into the center of the rotating disk 2 and its two ends are rotatably connected to the housing 18, which provides more stable rotational support for the rotating disk 2 and reduces friction or wear.

[0108] The above settings protect the internal structure from dust or external interference, provide more stable rotational support, and reduce friction or wear.

[0109] Based on the above embodiments, such as Figure 3 and Figure 4 As shown, limiting rings 202 are provided on both outer edges of the rotating disk 2 to cooperate with the first positioning mechanism 7 to limit the rotation of the rotating disk 2.

[0110] In this embodiment, as Figure 3 and Figure 6 As shown, the first positioning mechanism 7 includes: a mounting box 71, a first rotating wheel 72, a second screw 73, a drive block 74, a concave block 75, a pressure block 76, and a connecting rod 77, and its specific arrangement is as follows:

[0111] The mounting box 71 is installed on the bottom surface of the support plate 1 to serve as a support structure for other components and to protect the internal structure;

[0112] The first rotating wheel 72 is arranged outside the housing 71. The user drives the second screw 73 by rotating it, which improves the ease of operation and portability.

[0113] The second screw 73 is horizontally rotatably installed inside the mounting box 71, and one end extends out of the mounting box 71 and is connected to the first rotating wheel 72, which is used to convert the rotational motion into linear motion and drive the drive block 74 to move.

[0114] The drive block 74 is threaded onto the second screw 73 and is used to move horizontally as the second screw 73 rotates;

[0115] A rotating disk 2 extends into the inner side of the concave block 75, which is used to clamp the limiting ring 202 by the pressure block 76 to fix the rotating disk 2.

[0116] Two pressure blocks 76 are located on both sides of the inner wall of the concave block 75, directly contacting the limiting ring 202, thereby locking the position by applying pressure;

[0117] Multiple connecting rods 77 are connected at one end to the drive block 74 and at the other end to extend out of the mounting box 71 and connect to the concave block 75, which are used to transmit the linear motion of the drive block 74 to the concave block 75, so that it clamps or loosens.

[0118] Through the above design of the first positioning mechanism 7, the precision thread transmission of the second screw 73 and the drive block 74 is adopted, and the concave block 75 and the double-sided pressure block 76 symmetrically apply pressure to the limiting ring 202, which not only ensures the efficient locking of the rotating disk 2 at any angle, but also avoids the risk of deformation caused by stress concentration on one side, thus improving the stability of the locking.

[0119] In some embodiments, such as Figure 2 As shown, the clamping mechanism 11 includes: an L-shaped block 111, a limiting plate 112, a second rotating wheel 113, a third screw 114, a fourth screw 115, a clamping plate 116, and a wing nut 117, the specific configuration of which is as follows:

[0120] L-shaped block 111 is slidably mounted on the top surface of support ring 9, allowing it to move in the horizontal direction for adjusting the clamping position;

[0121] The limiting plate 112 is located on the top surface of the support ring 9 and on the side of the L-shaped block 111 away from the rotating disk 2, which serves to limit the range of movement and prevent excessive displacement.

[0122] The second rotating wheel 113 is used to facilitate the driving of the third screw 114, which improves the ease of operation and portability;

[0123] One end of the third screw 114 is connected to the second rotating wheel 113, and the other end is rotatably connected to the L-shaped block 111 and threaded onto the limiting plate 112. It is used to manually adjust the position of the L-shaped block 111 and push the L-shaped block 111 to slide horizontally.

[0124] The fourth screw 115 is vertically installed on the top surface of the L-shaped block 111 to guide the vertical movement of the clamping plate 116 and to cooperate with the wing nut 117;

[0125] The clamping plate 116 is arranged horizontally and slidably connected to the inner side of the L-shaped block 111, and is movably sleeved on the fourth screw 115 for clamping and fixing the geomembrane sample.

[0126] The wing nut 117 is threaded onto the fourth screw 115 and located above the clamping plate 116. It is used to fix the position of the clamping plate 116 and provide clamping force in the vertical direction.

[0127] When clamping the sample vertically, first place the edge of the geomembrane sample below the clamping plate 116, then press the clamping plate 116 down onto the surface of the sample, and then tighten the wing nut 117. Thus, a vertical clamping force is generated through the threaded connection with the fourth screw 115, thereby clamping the sample.

[0128] When the sample is pulled and tightened, the second rotating wheel 113 is rotated, thereby driving the third screw 114 to rotate together, which in turn drives the L-shaped block 111 to slide horizontally, and finally the sample clamped by the clamping plate 116 is pulled and tightened.

[0129] The above-described design of the clamping mechanism 11 enables stable clamping of the sample and convenient and quick tension adjustment, thereby ensuring the testing effect and improving operational efficiency.

[0130] Based on the above embodiments, such as Figure 2 As shown, the bottom surface of the clamping plate 116 is provided with a locking block 118, and the top surface of the L-shaped block 111 is provided with a locking groove 1111 that matches the locking block 118.

[0131] By setting the locking block 118 and the locking slot 1111 and engaging them, the geomembrane sample can be clamped and fixed more securely, preventing it from falling off and ensuring stable testing.

[0132] Numerous specific details are set forth in this specification. However, it will be understood that embodiments of this invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0133] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0134] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model 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. Such 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 utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A device for testing the puncture resistance of geomembranes, characterized in that, include: Support plate; A rotating disk is vertically mounted on the bottom surface of the support plate, with its top extending onto the support plate and having a receiving groove. A drive cylinder is installed within the receiving groove; The lifting seat is installed on the telescopic end of the drive cylinder, and has an insertion hole on its top surface; A pressure sensor is installed at the bottom of the socket; The puncture rod has its bottom end located inside the insertion hole and is fitted to the pressure sensor. The first positioning mechanism is installed on the bottom surface of the support plate and is used to limit and fix the rotating disk. A rotating ring is horizontally mounted on the top surface of the support plate and sleeved around the rotating disk; A support ring is horizontally arranged above the rotating disk and coaxially arranged with the rotating ring; Multiple support rods are installed between the rotating ring and the support ring; Multiple clamping mechanisms are evenly installed on the top surface of the support ring; The second positioning mechanism is installed on the top surface of the support plate and is used to limit and fix the rotating ring.

2. The geomembrane puncture resistance testing device according to claim 1, characterized in that, include: A semi-circular dial is vertically mounted on the top surface of the support plate and located beside the rotating disk; The first indicator needle is mounted on the side of the rotating disk and matches the semi-circular scale.

3. The geomembrane puncture resistance testing device according to claim 1, characterized in that, include: An annular support base is installed on the top surface of the support plate, and the rotating ring is embedded in the top surface; A graduated ring is coaxially mounted on the top surface of the annular support base; The second indicator needle is mounted on one of the support rods and matches the scale ring.

4. The geomembrane puncture resistance testing device according to claim 3, characterized in that, The second positioning mechanism includes: The first screw is threaded to the side of the annular support seat, and one end can extend into the annular support seat and abut against the rotating ring. A knob is located at the end of the first screw away from the rotating ring.

5. The geomembrane puncture resistance testing device according to claim 1, characterized in that, include: The housing is located at the bottom of the support plate and covers the rotating disk; The rotating shaft is inserted into the center of the rotating disk, and its two ends are rotatably connected to the housing.

6. The geomembrane puncture resistance testing device according to claim 1, characterized in that, The rotating disk has limiting rings on both outer edges, and the first positioning mechanism includes: The placement box is installed on the bottom surface of the support plate; The first rotating wheel is arranged outside the placement box; The second screw is horizontally rotatably installed inside the housing, with one end extending out of the housing and connected to the first rotating wheel; The drive block is threaded onto the second screw. A concave block, with the rotating disk extending into its inner side; Two pressure blocks are provided on both sides of the inner wall of the concave block; Multiple connecting rods, one end of which is connected to the drive block, and the other end extends out of the mounting box and is connected to the concave block.

7. The geomembrane puncture resistance testing device according to claim 1, characterized in that, The clamping mechanism includes: The L-shaped block is slidably installed on the top surface of the support ring; A limiting plate is provided on the top surface of the support ring and is located on the side of the L-shaped block away from the rotating disk; Second wheel; The third screw is connected at one end to the second rotating wheel and at the other end to the L-shaped block for rotation, and is threaded onto the limiting plate. The fourth screw is vertically installed on the top surface of the L-shaped block; The clamping plate is arranged horizontally and slidably connected to the inner side of the L-shaped block, and is movably sleeved on the fourth screw. A wing nut is threaded onto the fourth screw and located above the clamping plate.

8. The geomembrane puncture resistance testing device according to claim 7, characterized in that, The bottom surface of the clamping plate is provided with a locking block, and the top surface of the L-shaped block is provided with a locking groove that matches the locking block.

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