Ring stiffness testing equipment for glass fiber reinforced plastic sand pipe

Abstract

The utility model provides ring stiffness testing equipment for a glass fiber reinforced plastic sand inclusion pipe, which relates to the technical field of ring stiffness testing equipment and comprises a base, a pressure component arranged on the base in a lifting manner, a screw rod fixed on the base and a driving part fixed at the top of the screw rod, the pressure component is in threaded connection with the screw rod, and the driving part is in threaded connection with the screw rod. The pressure assembly comprises a pressure base, a pressure part, an electric telescopic part, connecting rods and a top seat, the top seat and the pressure base are in threaded connection with the lead screw, the connecting rods are fixed to the two sides of the lower portion of the top seat, and the connecting rods on the two sides of the lower portion of the top seat are fixedly connected with the pressure part; the electric telescopic piece is fixed to the top of the top base and fixedly connected with the connecting rod. Therefore, the glass fiber pipes with different specifications can be conveniently tested.

Description

Technical Field

[0001] The utility model relates to a glass fiber ring stiffness testing device, in particular to a glass fiber reinforced plastic sand-filled pipe ring stiffness testing device. Background Art

[0002] Ring stiffness testing equipment for fiberglass pipes is widely used in pipeline engineering applications such as construction, water conservancy, and agricultural irrigation. By testing the ring stiffness of materials like fiberglass reinforced plastic sand-filled pipes, it is possible to assess their ability to resist deformation under external loads, providing important insights for pipeline design and construction. The equipment is also suitable for testing and analyzing the mechanical properties of other similar materials.

[0003] A Chinese utility model patent, with authorization announcement number CN216525197U, provides a ring stiffness testing device, which includes a chassis, a material holding area, a transfer device, a controller, a test table, a press, a load detection module, a laser ranging module, and a rotation module. During the test, the transfer device transfers the pipe under test from the material holding area to the test table. The press then applies pressure to the pipe under test, causing it to deform radially. When the inner diameter deformation of the pipe under test reaches a preset threshold, the controller controls the press to stop applying pressure and calculates the ring stiffness value of the pipe under test based on the load at the time the inner diameter deformation reaches the preset threshold. This device can automatically load, transport, apply pressure and test the pipe under test, detect deformation, and automatically calculate the ring stiffness. This reduces the need for human intervention during the test process, ensuring the objectivity and accuracy of the test results. Furthermore, the test process is completed within the chassis, thereby improving test safety.

[0004] However, the ring stiffness testing device provided by the above patent has the problem that the plastic pipe fixing process is complicated and takes too long during the test. Therefore, it is necessary to provide a solution to improve this problem. Utility Model Content

[0005] The purpose of the utility model is to provide a ring stiffness testing device for glass fiber reinforced plastic sand-filled pipes, which can conveniently test glass fiber pipes of different specifications.

[0006] The utility model provides a ring stiffness testing device for glass fiber reinforced plastic sand-filled pipes, comprising a base, and a pressure assembly lifted and lowered on the base, a screw rod fixed on the base, and a driving member fixed on the top of the screw rod, wherein the pressure assembly is threadedly connected to the screw rod, and the pressure assembly comprises a pressure base, a pressure member, an electric telescopic member, a connecting rod, and a top seat, wherein the top seat and the pressure base are respectively threadedly connected to the screw rod, the connecting rod is fixed on both sides of the bottom of the top seat, and the connecting rods on both sides of the bottom of the top seat are fixedly connected to the pressure member, and the electric telescopic member is fixed on the top of the top seat and fixedly connected to the connecting rod.

[0007] Using this technical solution, a fiberglass tube is placed between a pressure base and a top seat. A driver drives a lead screw to control the movement of the pressure assembly. When the center of the pressure element aligns with the center of the fiberglass tube, an electric telescopic member on the top seat drives a connecting rod, which drives the pressure element downward to press the fiberglass tube. This utility model can conveniently test fiberglass tubes of different specifications.

[0008] Optionally, a dustproof shell is provided outside the connecting rod, the dustproof shell is in sliding contact with the pressure piece, and the dustproof shell is fixedly connected to the top seat and the pressure base respectively.

[0009] By adopting the above technical solution, the dustproof cover can prevent dust from entering the interior of the connecting rod, causing the outlet connecting rod to get stuck or blocked, thereby affecting the test results. The dustproof cover can also enhance the structural strength of the ring stiffness test equipment.

[0010] Optionally, the contact surface between the pressure piece and the glass fiber tube is engraved with knurling, and the knurling is used to increase the static friction between the pressure piece and the glass fiber tube.

[0011] By adopting the above technical solution, during the ring stiffness test, the knurling on the pressure piece can increase the friction between the pressure piece and the glass fiber tube, thereby preventing the glass fiber tube from sliding out of the test range during the test.

[0012] Optionally, a pressure sensor is provided inside the pressure base for testing the elastic force of the glass fiber tube.

[0013] By adopting the above technical solution, the pressure sensor can test the rebound force generated by the deformation of the glass fiber tube, thereby better calculating the stiffness of the glass fiber tube.

[0014] Optionally, a displacement sensor is provided in the pressure member for measuring the deformation of the glass fiber tube.

[0015] By adopting the above technical solution, the displacement sensor can measure the deformation of the glass fiber tube.

[0016] Optionally, a protective shell is provided outside the pressure component to protect the tester.

[0017] By adopting the above technical solution, during the ring stiffness test, the protective shell can prevent the waste material splashed out by the glass fiber tube from breaking and injuring the tester, thereby ensuring the safety of the tester.

[0018] Optionally, a sliding door is provided on the side of the protective shell, and a handle is provided on the sliding door to facilitate the tester to quickly replace the fiberglass tube.

[0019] By adopting the above technical solution, after the glass fiber tube is tested, the sliding door can be removed by pulling open the handle and the tested glass fiber tube can be replaced, thereby protecting the tester while facilitating the tester to perform batch testing operations.

[0020] Optionally, the sliding door is made of transparent material and is used to observe the glass fiber tube ring stiffness test process.

[0021] The above technical solution can facilitate testers to observe the internal test through the sliding door and take emergency risk avoidance measures in special situations. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The utility model provides an overall structural schematic diagram of a ring stiffness testing device for a glass fiber reinforced plastic sand-filled pipe.

[0023] Figure 2 The utility model provides a partial cross-sectional view of a pressure component of a ring stiffness testing device for a glass fiber reinforced plastic sand-filled pipe.

[0024] Figure 3 The utility model provides a partial cross-sectional view of a dustproof shell of a ring stiffness testing device for a glass fiber reinforced plastic sand-filled pipe.

[0025] Explanation of the accompanying drawings: 1. Base; 21. Pressure base; 211. Pressure sensor; 22. Dustproof shell; 23. Screw; 24. Driving member; 25. Pressure member; 251. Displacement sensor; 26. Top seat; 27. Connecting rod; 28. Electric telescopic member; 3. Protective shell; 4. Sliding door; 41. Handle. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Unless otherwise defined, the technical terms or scientific terms used herein should be the common meanings understood by people with ordinary skills in the field to which the present invention belongs. The words "including" and similar words used in this article mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects.

[0027] An embodiment of the present utility model provides a ring stiffness testing device for glass fiber reinforced plastic sand-filled pipes, comprising a base 1, and a pressure assembly lifted and lowered on the base 1, a screw rod 23 fixed on the base 1 and a driving member 24 fixed on the top of the screw rod 23, the pressure assembly being threadedly connected to the sliding rod, the pressure assembly comprising a pressure base 211, a pressure member 25, an electric telescopic member 28, a connecting rod 27, and a top seat 26, the top seat 26 and the pressure base 211 being threadedly connected to the screw rod 23 respectively, the connecting rod 27 being fixed on both sides of the bottom of the top seat 26, and the connecting rods 27 on both sides of the bottom of the top seat 26 being fixedly connected to the pressure member 25, the electric telescopic member 28 being fixed on the top of the top seat 26 and being fixedly connected to the connecting rod 27.

[0028] See also Figure 1 Figure 2 The fiberglass tube is placed between the pressure base 211 and the top base 26. The screw 23 is rotated by the driver 24. The top base 26 and the pressure base 211 of the pressure assembly are both threadedly engaged with the screw 23. The rotation of the screw 23 then drives the pressure base 211 and the top base 26 to move synchronously. During the movement of the pressure assembly, when the center of the pressure member 25 is aligned with the center of the fiberglass tube, the electric telescopic member 28 on the top base 26 drives the connecting rod 27 to drive the pressure member 25 downward to press the fiberglass tube, thereby conveniently testing fiberglass tubes of different specifications. Specifically, the driver 24 is a motor.

[0029] See also Figure 3 The connecting rod 27 is provided with a dustproof cover 22 outside, and the dustproof cover 22 is in sliding contact with the pressure piece 25.

[0030] In practice, when the ring stiffness tester is not in use, the dust cover 22 prevents dust from entering the interior of the connecting rod 27, which could cause the outgoing connecting rod 27 to become stuck or blocked, thereby affecting the test results. Furthermore, the dust cover 22 enhances the structural strength of the ring stiffness tester, preventing damage to the equipment during high-intensity testing. Specifically, the dust cover 22 is made of stainless steel.

[0031] In some embodiments, the contact surface between the pressure piece 25 and the glass fiber tube is knurled, and the knurling is used to increase the static friction between the pressure piece 25 and the glass fiber tube.

[0032] In fact, during the ring stiffness test, since the glass fiber tube is in a free state, the knurling on the pressure piece 25 can increase the friction between the pressure piece 25 and the glass fiber tube, thereby preventing the glass fiber tube from sliding out of the test range during the test.

[0033] In some embodiments, a pressure sensor 211 is provided inside the pressure base 211 for testing the elastic force of the glass fiber tube.

[0034] In fact, during the ring stiffness test, the pressure required by the pressure member 25 to compress the glass fiber tube can be used to calculate the elastic force of the glass fiber tube through the pressure sensor 211 .

[0035] In some embodiments, the displacement sensor 251 can measure the deformation of the glass fiber tube.

[0036] In fact, during the ring stiffness test, the deformation amount generated by the pressure member 25 compressing the glass fiber tube can be measured by the displacement sensor 251 .

[0037] In some embodiments, a protective shell 3 is provided outside the pressure assembly to protect the tester.

[0038] In fact, during the ring stiffness test, the protective shell 3 can prevent the waste materials splashed out by the glass fiber tube from breaking during the test and injuring the tester, thereby ensuring the safety of the tester.

[0039] In some embodiments, a sliding door 4 is provided on the side of the protective shell 3 , and a handle is provided on the sliding door 4 to facilitate the tester to quickly replace the fiberglass tube.

[0040] In fact, after the glass fiber tube is tested, the sliding door 4 can be removed by pulling open the handle, and the tested glass fiber tube can be replaced. After the glass fiber tube is replaced, the sliding door 4 can be closed, thereby protecting the tester while facilitating the tester to perform batch testing operations.

[0041] In some embodiments, the sliding door 4 is made of a transparent material and is used to observe the ring stiffness test process of the glass fiber tube.

[0042] In fact, during the ring stiffness test, the test personnel can observe the internal test through the sliding door 4 and make emergency avoidance measures for special situations.

[0043] While the embodiments of the present invention have been described in detail above, it will be apparent to those skilled in the art that various modifications and variations may be made to these embodiments. However, it should be understood that such modifications and variations are within the scope and spirit of the present invention as set forth in the claims. Furthermore, the present invention described herein may have other embodiments and may be implemented or carried out in a variety of ways.

Claims

1. A ring stiffness testing device for glass fiber reinforced plastic sand-filled pipes, characterized in that: It includes a base, and a pressure assembly set on the base for lifting and lowering, and also includes a screw fixed on the base and a driving member fixed on the top of the screw. The pressure assembly is threadedly connected to the screw. The pressure assembly includes a pressure base, a pressure member, an electric telescopic member, a connecting rod, and a top seat. The top seat and the pressure base are respectively threadedly connected to the screw, the connecting rod is fixed on both sides of the bottom of the top seat, and the connecting rods on both sides of the bottom of the top seat are fixedly connected to the pressure member, and the electric telescopic member is fixed on the top of the top seat and fixedly connected to the connecting rod.

2. The ring stiffness testing device for glass fiber reinforced plastic sand-filled pipe according to claim 1, characterized in that: A dustproof shell is provided outside the connecting rod, and the dustproof shell is in sliding contact with the pressure piece.

3. The ring stiffness testing device for glass fiber reinforced plastic sand-filled pipe according to claim 2, characterized in that: The contact surface between the pressure piece and the glass fiber tube is engraved with knurling, and the knurling is used to increase the static friction between the pressure piece and the glass fiber tube.

4. The ring stiffness testing device for glass fiber reinforced plastic sand-filled pipe according to claim 3, characterized in that: A pressure sensor is provided inside the pressure base for testing the elastic force of the glass fiber tube.

5. The ring stiffness testing device for glass fiber reinforced plastic sand-filled pipe according to claim 4, characterized in that: A displacement sensor is provided in the pressure piece for measuring the deformation of the glass fiber tube.

6. The ring stiffness testing device for glass fiber reinforced plastic sand-filled pipe according to claim 5, characterized in that: A protective shell is provided outside the pressure component to protect the tester.

7. The ring stiffness testing device for glass fiber reinforced plastic sand-filled pipe according to claim 6, characterized in that: A sliding door is provided on the side of the protective shell, and a handle is provided on the sliding door to facilitate the tester to quickly replace the fiberglass tube.

8. The ring stiffness testing device for glass fiber reinforced plastic sand-filled pipe according to claim 7, characterized in that: The sliding door is made of transparent material and is used to observe the glass fiber tube ring stiffness test process.

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