Circular flat bottomed indentation apparatus

By designing a circular flat-bottomed indenter device that includes an electric push rod and a limiting seat, the problem of unstable sample fixation was solved, and the center positioning and clamping of the pipe was achieved, improving the accuracy and flexibility of the test.

CN224535688UActive Publication Date: 2026-07-21HEFEI YUANZHENG QUALITY TECH SERVICE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEFEI YUANZHENG QUALITY TECH SERVICE CO LTD
Filing Date
2025-07-03
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

The existing sample fixing system of the circular flat-bottom indenter is not reliable enough, which can lead to sample slippage, rotation or local stress concentration, affecting the accuracy of test data.

Method used

A device comprising a first electric push rod, a frame, a flat-bottomed indenter assembly, a lifting plate, a connecting rod, a slide rail, and a limiting seat is designed. The electric push rod drives the lifting plate and connecting rod to move, thereby achieving center positioning and clamping of pipes of different diameters. Combined with replaceable limiting blocks and anti-slip pads, the clamping stability is enhanced.

Benefits of technology

It enables convenient center positioning and clamping of pipes, avoiding slippage and stress concentration, and improving the accuracy of test data and the practicality of the device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a circular flat bottom indentation appearance device relates to flat bottom indentation appearance technical field, including first electric push rod, frame, the top of frame is fixed with first electric push rod, and the output of first electric push rod is connected with flat bottom indentation appearance group. The utility model discloses through starting second electric push rod and driving lift plate to go down in the use process, and lift plate is along the outside activity of slide rail and is driven two sides connecting rod bottom to go down through the hinged effect, further connecting rod top two sides drive connecting plate and limit seat synchronous in -migration through hinged, namely realizes the location fixed of different diameter tubular product, and can make the center positioning simultaneously, and it is not easy to shift and slide, through two sides clamping to avoid stress concentration, and further cooperation can change the spacer block and make clamping fixed structure can be compatible with different material pipe, further enhance the practicality and flexibility of device, satisfy the clamping demand under different scenes.
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Description

Technical Field

[0001] This utility model relates to the technical field of flat-bottomed indentation instruments, and particularly to a circular flat-bottomed indentation instrument device. Background Technology

[0002] The circular flat-bottom indenter is a professional testing device used to measure the penetration resistance of pipes. It simulates the damage process of external objects (such as mechanical impact, animal bites, or sharp object intrusion) to the pipe and determines its critical penetration force, energy absorption, and deformation characteristics. This device is widely used in quality inspection and research and development in fields such as gas pipelines, oil pipes, medical catheters, and automotive oil pipes.

[0003] As a key device for measuring the penetration resistance of pipes, the accuracy of the test results of the circular flat-bottom indenter largely depends on the reliability of the sample fixing system. In actual testing, inappropriate fixing methods may cause the sample to slide, rotate, or experience local stress concentration, which in turn affects the authenticity of the test data. There is room for optimization, so it is necessary to design a circular flat-bottom indenter device to solve the problems mentioned above. Utility Model Content

[0004] The purpose of this invention is to provide a circular flat-bottomed indenter device to solve the problem that the fixing system mentioned in the background art has certain room for optimization.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a circular flat-bottomed indenter device, comprising a first electric push rod and a frame, wherein the first electric push rod is fixed at the top of the frame;

[0006] The output end of the first electric push rod is connected to a flat-bottomed indenter assembly. Receiving grooves are provided on both sides of the inside of the frame, and a second electric push rod is fixed to the bottom of each receiving groove. A lifting plate is fixed to the output end of each second electric push rod, and connecting rods are hinged to both sides of the lifting plate. A slide rail is fixed to one side of the inside of each receiving groove, and sliding grooves are provided on both sides of the slide rail. Slider blocks are fixed to both ends of one side of the lifting plate, and the sliders are connected to the sliding grooves. A connecting plate is hinged to the outer side of each connecting rod, and a movable block is fixed to the top of each connecting plate. A limit seat is fixed to the top of each movable block, and a limit block is connected to the inner side of each limit seat. Movable grooves are provided inside the frame at the top of the receiving groove, and these movable grooves are connected to the movable blocks. An industrial control computer is fixed to one side of the frame.

[0007] Furthermore, mounting grooves are provided on both sides of the interior of the limiting seat, and mounting blocks are fixed on both sides of the limiting block, with the mounting blocks connected to the mounting grooves.

[0008] Furthermore, the width of the mounting groove is matched with the width of the mounting block, and the cross-sections of both the mounting groove and the mounting block are convex.

[0009] Furthermore, each of the mounting blocks has a screw hole at its top, and each screw hole is connected to a bolt via a limit seat thread.

[0010] Furthermore, each bolt has a washer on its inner side, and the washer is in contact with the outer side of the limiting seat.

[0011] Furthermore, each of the limiting blocks has an anti-slip pad fixed on its inner side, and the anti-slip pad is made of rubber.

[0012] Furthermore, the width of the groove is matched with the width of the slider, and the cross-sections of both the groove and the slider are set to be semi-circular.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the circular flat-bottomed indenter device realizes the function of easy center positioning and clamping;

[0014] During use, the second electric push rod is activated to move the lifting plate downwards. The lifting plate moves along the outside of the slide rail and, through the hinge action, moves the bottom of the connecting rods on both sides downwards. Furthermore, the top two sides of the connecting rods, through the hinge, move the connecting plate and the limiting seat inwards synchronously. This achieves the limiting and fixing of pipes of different diameters, and at the same time, it can center them and prevent them from shifting or sliding. The clamping on both sides avoids stress concentration. Furthermore, the interchangeable limiting blocks make the clamping and fixing structure compatible with pipes of different materials, further enhancing the practicality and flexibility of the device and meeting the clamping needs in different scenarios. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the 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 based on these drawings without creative effort.

[0016] Figure 1 This is a front view structural diagram of the present utility model;

[0017] Figure 2 This is a side sectional view of the present invention.

[0018] Figure 3 This is a three-dimensional structural diagram of the lifting plate of this utility model;

[0019] Figure 4 This is a three-dimensional structural diagram of the limiting seat of this utility model;

[0020] Figure 5 This is a top view cross-sectional structural diagram of the present invention.

[0021] The following are the annotations in the diagram: 1. First electric push rod; 2. Frame; 3. Flat bottom indenter assembly; 4. Limit seat; 5. Industrial computer; 6. Limit block; 7. Connecting plate; 8. Movable block; 9. Movable groove; 10. Receiving groove; 11. Connecting rod; 12. Second electric push rod; 13. Lifting plate; 14. Slide rail; 15. Slide groove; 16. Slider; 17. Bolt; 18. Mounting groove; 19. Mounting block; 20. Anti-slip pad. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] Please see Figures 1-5 The present invention provides an embodiment of a circular flat-bottomed indenter device, comprising a first electric push rod 1 and a frame 2. The first electric push rod 1 is fixed at the top of the frame 2. The output end of the first electric push rod 1 is connected to a flat-bottomed indenter assembly 3. Both sides of the inside of the frame 2 are provided with receiving grooves 10, and the bottom of the receiving grooves 10 is fixed with a second electric push rod 12. The output end of the second electric push rod 12 is fixed with a lifting plate 13, and both sides of the lifting plate 13 are hinged with connecting rods 11. One side of the receiving grooves 10 is fixed with a slide rail 14, and both sides of the slide rail 14 are provided with slide grooves 15.

[0024] The width of the slide groove 15 is matched with the width of the slider 16, and the cross-sections of both the slide groove 15 and the slider 16 are set as semi-circular.

[0025] Specifically, such as Figure 3 As shown, during use, the slider 16 and the groove 15 can reduce the friction during sliding, thereby improving the overall lifting and sliding effect.

[0026] Both ends of one side of the lifting plate 13 are fixed with sliders 16, and the sliders 16 are connected to the slide groove 15. The outer side of the connecting rod 11 is hinged with a connecting plate 7, and the top of the connecting plate 7 is fixed with a movable block 8. The top of the movable block 8 is fixed with a limit seat 4.

[0027] The limiting seat 4 has mounting grooves 18 on both sides, and the limiting block 6 has mounting blocks 19 fixed on both sides. The mounting blocks 19 are connected to the mounting grooves 18. The width of the mounting grooves 18 matches the width of the mounting blocks 19. The cross-sections of the mounting grooves 18 and the mounting blocks 19 are convex. The top of the mounting blocks 19 has screw holes, and the screw holes are threaded to the limiting seat 4. Bolts 17 are threaded through the limiting seat 4. Washers are provided on the inner side of the bolts 17, and the washers are in contact with the outer side of the limiting seat 4.

[0028] Specifically, such as Figure 4 As shown, during use, the mounting groove 18 and mounting block 19 facilitate the installation and removal of the limit block 6 and the limit seat 4, thereby facilitating the replacement and adjustment of the limit block 6. After installation, the connection between the bolt 17 and the screw hole facilitates further fixing of the limit block 6 to ensure its stability in use.

[0029] Furthermore, the inner side of the limiting seat 4 is connected to the limiting block 6;

[0030] Anti-slip pads 20 are fixed on the inner side of each limiting block 6, and the anti-slip pads 20 are all made of rubber.

[0031] Specifically, such as Figure 4 As shown, during use, the anti-slip pad 20 can further improve the stability of workpiece clamping;

[0032] The frame 2 at the top of the receiving slot 10 is equipped with movable slots 9, and each movable slot 9 is connected to the movable block 8. An industrial control computer 5 is fixed on one side of the frame 2.

[0033] Working principle: When using this utility model, the limiting block 6 is replaced according to the pipe material to ensure stable clamping under the appropriate conditions. Then, the second electric push rod 12 is activated to drive the lifting plate 13 to move down. The lifting plate 13 moves along the outside of the slide rail 14 and drives the bottom of the connecting rods 11 on both sides to move down through the hinge action. Then, the top two sides of the connecting rods 11 drive the connecting plate 7 and the limiting seat 4 to move inward synchronously through the hinge, which realizes the limiting and fixing of pipes of different diameters, and at the same time can make their center positioning, so that it is not easy to deviate and slide. After the clamping is completed, the first electric push rod 1 is activated to drive the flat bottom indenter group 3 to descend to test the pipe.

[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0035] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0036] 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 this 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 of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A circular flat-bottomed indenter device, comprising a first electric push rod (1) and a frame (2), wherein the first electric push rod (1) is fixed at the top of the frame (2); Its features are: The output end of the first electric push rod (1) is connected to a flat bottom indenter assembly (3). Both sides of the frame (2) are provided with receiving grooves (10), and the bottom of each receiving groove (10) is fixed with a second electric push rod (12). The output end of each second electric push rod (12) is fixed with a lifting plate (13), and both sides of the lifting plate (13) are hinged with connecting rods (11). One side of each receiving groove (10) is fixed with a slide rail (14), and both sides of the slide rail (14) are provided with sliding grooves (15). The lifting plate (13) has a sliding groove (15) on one side... Both ends are fixed with sliders (16), and the sliders (16) are connected to the slide grooves (15). The outer side of the connecting rod (11) is hinged with a connecting plate (7), and the top of the connecting plate (7) is fixed with a movable block (8). The top of the movable block (8) is fixed with a limit seat (4), and the inner side of the limit seat (4) is connected with a limit block (6). The inside of the frame (2) at the top of the receiving groove (10) is provided with a movable groove (9), and the movable groove (9) is connected to the movable block (8). An industrial control computer (5) is fixed on one side of the frame (2).

2. The circular flat-bottomed indenter device according to claim 1, characterized in that: The limiting seat (4) has mounting grooves (18) on both sides inside, and the limiting block (6) has mounting blocks (19) fixed on both sides, and the mounting blocks (19) are connected to the mounting grooves (18).

3. The circular flat-bottomed indenter device according to claim 2, characterized in that: The width of the mounting groove (18) is matched with the width of the mounting block (19), and the cross-sections of the mounting groove (18) and the mounting block (19) are both convex.

4. The circular flat-bottomed indenter device according to claim 2, characterized in that: The top of each mounting block (19) is provided with a screw hole, and the screw hole is connected to a bolt (17) by a limit seat (4).

5. The circular flat-bottomed indenter device according to claim 4, characterized in that: Each bolt (17) has a washer on its inner side, and the washer is in contact with the outer side of the limiting seat (4).

6. The circular flat-bottomed indenter device according to claim 1, characterized in that: The inner side of each limiting block (6) is fixed with an anti-slip pad (20), and the anti-slip pad (20) is made of rubber.

7. The circular flat-bottomed indenter device according to claim 1, characterized in that: The width of the groove (15) is matched with the width of the slider (16), and the cross-sections of the groove (15) and the slider (16) are both set as semi-circular.