Experimental device for permeability of composite material

Abstract

The utility model relates to the technical field of permeability experiment, and discloses a composite material permeability experiment device which comprises a workbench, the upper surface of the workbench is fixedly connected with an object placing seat, a seepage cylinder is arranged above the object placing seat, the outer wall of the seepage cylinder is fixedly connected with a fixed semi-ring, and the fixed semi-ring is fixedly connected with a through hole. A fixing assembly is arranged on the outer wall of the fixing half ring and used for fixing the storage base and the seepage cylinder, and a sealing assembly is arranged in the seepage cylinder and used for sealing the joint of the storage base and the seepage cylinder. According to the utility model, the problem that the inaccuracy and the data variability of the experiment are increased due to the gradual reduction of the sealing performance in the long-term use of the device is solved, the high-efficiency and stable sealing is realized, the liquid leakage can be effectively prevented, and the accuracy and the consistency of data in the permeation experiment are ensured; therefore, the real permeability of the material can be reflected more reliably.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of permeability experiment, especially to composite material permeability experiment device. BACKGROUND

[0002] Composite materials are formed by combining two or more different materials through physical or chemical means, aiming to combine the advantages of each component, thus possessing excellent mechanical properties, corrosion resistance and lightweight characteristics. These materials are widely used in aerospace, automotive, construction and medical fields. Due to their wide application, understanding the permeability of composite materials becomes particularly important, especially in situations where their resistance to penetration in liquid environments needs to be evaluated. Using a composite material permeability experiment device can accurately measure the penetration rate and permeability coefficient of liquids in materials, helping engineers optimize material design and ensure durability and safety requirements in practical applications. Therefore, this experimental device is of great significance in new material development and quality control.

[0003] Traditional composite material permeability experiment devices are usually composed of a sample chamber, a pressure source, a flow meter and a control system. When using, first prepare a standard size composite material sample and clean its surface, then fix the sample in the sample chamber to ensure good sealing. Next, connect the pressure source and set the required applied pressure and test time. After starting the device, apply the predetermined pressure through the control system to make the liquid penetrate in the sample, and record the flow and pressure data in real time. After the experiment is completed, stop the pressure application, collect and analyze the data to calculate the penetration rate and permeability coefficient of the sample. Through this process, the permeability of the composite material can be effectively evaluated, providing important basis for the practical application of the material.

[0004] Traditional composite material permeability experiment devices, due to their complex structure, need to be disassembled and placed when placing experimental samples, which will cause aging, wear or deformation in long-term use, leading to gradual decline in sealing performance, thus increasing the inaccuracy of experiments and variability of data. UTILITY MODEL CONTENT

[0005] In order to make up for the above shortcomings, the utility model provides a composite material permeability experiment device, aiming to improve the problem of gradual decline in sealing performance of traditional composite material permeability experiment devices in long-term use, thus increasing the inaccuracy of experiments and variability of data.

[0006] To achieve the above object, the utility model provides the following technical scheme: Composite material permeability experiment device, including the work table, the upper surface fixed connection of work table has the article seat, the upper portion of article seat is provided with the liquid penetration cylinder, the outer wall fixed connection of liquid penetration cylinder has the fixed half ring, the outer wall of fixed half ring is provided with fixed component, fixed component is used for fixing article seat with liquid penetration cylinder, the inside of liquid penetration cylinder is provided with sealing component, sealing component is used for sealing the junction of article seat with liquid penetration cylinder, the top fixed connection of liquid penetration cylinder has the pressure ware, the inside fixed connection of work table has telescopic conveying pipe, one end fixed connection of telescopic conveying pipe is in the inside of liquid penetration cylinder,

[0007] The sealing assembly comprises a sliding rod, the outer wall of the sliding rod is slidably connected in the inside of the liquid penetration cylinder, the other end of the sliding rod is fixedly connected with a sealing ring, the outer wall of the sliding rod is sleeved with a spring, and a limiting groove is formed in the inside of the article seat.

[0008] Further, the fixed component comprises a hinge, one side of the outer wall of the hinge is fixedly connected in the inside of the fixed half ring, the other side of the outer wall of the hinge is fixedly connected with a movable half ring, and one end of the fixed half ring is rotatably connected with a fixed screw rod.

[0009] Further, the upper surface of the workbench is fixedly connected with an electric sliding rail, the output end of the electric sliding rail is fixedly connected with a connecting sleeve, the inner wall of the connecting sleeve is fixedly connected to the outer wall of the liquid penetration cylinder, a rotating rod is rotatably connected in the inside of the article seat, the outer wall of the rotating rod is fixedly connected with a worm, and a pressing assembly is arranged in the inside of the article seat.

[0010] Further, the pressing assembly comprises a worm wheel, the outer wall of the worm wheel is rotatably connected in the inside of the article seat, a lead screw is fixedly connected in the inside of the worm wheel, the outer wall of the lead screw is fixedly connected with a sealing bearing, the outer wall of the lead screw is threadedly connected with a fixed ring, a guide rod is slidably connected in the inside of the fixed ring, and the bottom of the guide rod is fixedly connected to the upper surface of the article seat.

[0011] Further, the outer wall of the sealing ring is slidably connected in the inside of the limiting groove, and the limiting groove is used for facilitating the sliding of the sealing ring to the inside of the article seat.

[0012] Further, one end of the spring is fixedly connected in the inside of the liquid penetration cylinder, and the other end of the spring is fixedly connected to the upper surface of the sealing ring.

[0013] Further, the inner wall of the fixed half ring and the movable half ring is attached to the outer wall of the article seat.

[0014] Further, the outer wall of the sealing bearing is fixedly connected to the inside of the object seat, and the sealing bearing is used for sealing between the lead screw and the object seat.

[0015] The utility model has the advantages of the following:

[0016] 1. In the utility model, first, the movable half ring and the fixed screw cooperate with the hinge to fix or release the object seat and the liquid permeation cylinder. During this process, the sealing ring is moved to the inside of the limiting groove through the movement of the liquid permeation cylinder. Then, the spring and the sliding rod are matched to realize long-term stable sealing. Finally, the telescopic conveying pipe and the pressure device are matched to carry out the permeability experiment. The problem that the sealing performance gradually decreases during long-term use of the device and further increases the inaccuracy of the experiment and the data variability is solved. The utility model realizes efficient and stable sealing, effectively prevents liquid leakage, ensures the accuracy and consistency of the data in the permeation experiment, and thus more reliably reflects the real permeability of the material.

[0017] 2. In the utility model, first, the electric sliding rail cooperates with the connecting sleeve to drive the liquid permeation cylinder to move, so that the sample is conveniently placed. Then, the driving rotating rod cooperates with the worm, the worm wheel, the lead screw, the sealing bearing and the guide rod to drive the fixed ring to press down and fix the sample. The utility model realizes stable fixation of the sample, reduces the movement or deformation of the sample during the test, and thus ensures that the permeation liquid can uniformly act on the sample and improves the accuracy of the test. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The utility model provides a three-dimensional structure schematic view of the composite material permeability experiment device.

[0019] Figure 2 The utility model provides a structure schematic view below the liquid permeation cylinder of the composite material permeability experiment device.

[0020] Figure 3 The utility model provides a structure schematic view of one side of the fixed half ring of the composite material permeability experiment device.

[0021] Figure 4 The utility model provides a structure schematic view of the inside of the object seat of the composite material permeability experiment device.

[0022] LEGEND:

[0023] 1, workbench;2, object seat;3, liquid permeation cylinder;4, fixed half ring;5, hinge;6, movable half ring;7, fixed screw;8, spring;9, sliding rod;10, sealing ring;11, limiting groove;12, pressure device;13, electric sliding rail;14, connecting sleeve;15, telescopic conveying pipe;16, rotating rod;17, worm;18, worm wheel;19, lead screw;20, sealing bearing;21, fixed ring;22, guide rod. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor belong to the scope of protection of the utility model.

[0025] Referring to Figure 1 Figure 3 An embodiment provided by the utility model: composite material permeability experiment device, the upper surface of workbench 1 is fixedly connected with the article seat 2, the upper portion of article seat 2 is provided with the liquid permeation cylinder 3, the outer wall of liquid permeation cylinder 3 is fixedly connected with the fixed half ring 4, article seat 2 and liquid permeation cylinder 3 are positioned by fixed half ring 4, the outer wall of fixed half ring 4 is provided with fixed assembly, and fixed assembly is used to fix article seat 2 and liquid permeation cylinder 3, the inside of liquid permeation cylinder 3 is provided with sealing assembly, and sealing assembly is used to seal the connecting portion of article seat 2 and liquid permeation cylinder 3, the top of liquid permeation cylinder 3 is fixedly connected with pressure ware 12, pressure is applied to the inside of liquid permeation cylinder 3 by pressure ware 12, the inside of workbench 1 is fixedly connected with telescopic conveying pipe 15, one end of telescopic conveying pipe 15 is fixedly connected in the inside of liquid permeation cylinder 3, and the permeation liquid is conveyed to the inside of liquid permeation cylinder 3 by telescopic conveying pipe 15;

[0026] Sealing assembly includes sliding rod 9, the outer wall of sliding rod 9 is slidingly connected in the inside of liquid permeation cylinder 3, the other end of sliding rod 9 is fixedly connected with sealing ring 10, the outer wall of sliding rod 9 is sleeved with spring 8, the inside of article seat 2 is provided with limiting groove 11, sealing ring 10 is moved to the inside of article seat 2 by the movement of liquid permeation cylinder 3 inside the inside of pressure ware 12, at this time, sealing ring 10 is made to slide in the inside of liquid permeation cylinder 3 by the support of article seat 2, spring 8 is made to contract, sealing ring 10 is tightly attached with limiting groove 11 by the pushing force generated when spring 8 contracts, long-term stable sealing is realized, in addition, the extension of spring 8 is guided by sliding rod 9, fixed assembly includes hinge 5, the outer wall of hinge 5 is fixedly connected in the inside of fixed half ring 4, the outer wall of hinge 5 is fixedly connected with movable half ring 6 on the other side, one end of fixed half ring 4 is rotatably connected with fixed screw rod 7, movable half ring 6 is made to rotate with hinge 5 as center by pulling, fixed half ring 4 and movable half ring 6 are wrapped on the outer wall of article seat 2, then fixed screw rod 7 is moved to the inside of movable half ring 6, and then fixed by cooperating with external nut;

[0027] Referring to Figure 1 and Figure 4 ​The upper surface of the workbench 1 is fixedly connected with an electric sliding rail 13, the output end of the electric sliding rail 13 is fixedly connected with a connecting sleeve 14, the inner wall of the connecting sleeve 14 is fixedly connected to the outer wall of the liquid permeation cylinder 3, the driving of the electric sliding rail 13 drives the connecting sleeve 14 to move, so as to drive the liquid permeation cylinder 3 to move up and down through the connecting sleeve 14, thereby facilitating the placement of the sample, the inside of the storage seat 2 is rotatably connected with a rotating rod 16, the outer wall of the rotating rod 16 is fixedly connected with a worm 17, the driving of the rotating rod 16 drives the worm 17 to rotate in the inside of the storage seat 2, the inside of the storage seat 2 is provided with a pressing assembly, the pressing assembly is used for pressing and fixing the composite material, the pressing assembly comprises a worm wheel 18, the outer wall of the worm wheel 18 is rotatably connected in the inside of the storage seat 2, the inside of the worm wheel 18 is fixedly connected with a lead screw 19, the outer wall of the lead screw 19 is fixedly connected with a sealing bearing 20, the outer wall of the lead screw 19 is threadedly connected with a fixed ring 21, the inside of the fixed ring 21 is slidably connected with a guide rod 22, the bottom of the guide rod 22 is fixedly connected to the upper surface of the storage seat 2, the outer wall of the sealing ring 10 is slidably connected in the inside of the limiting groove 11, the limiting groove 11 is used for facilitating the sliding of the sealing ring 10 to the inside of the storage seat 2, through the meshing relationship between the worm 17 and the worm wheel 18, the worm wheel 18 drives the lead screw 19 to rotate with the worm 17, and through the threaded relationship between the lead screw 19 and the fixed ring 21, the fixed ring 21 moves on the outer wall of the lead screw 19, and then the fixed ring 21 moves up and down above the storage seat 2 in cooperation with the guidance of the guide rod 22, thereby pressing and fixing the sample, in this process, the sealing is realized through the sealing bearing 20 to prevent liquid leakage, one end of the spring 8 is fixedly connected to the inside of the liquid permeation cylinder 3, the other end of the spring 8 is fixedly connected to the upper surface of the sealing ring 10, the inner wall side of the fixed half ring 4 and the movable half ring 6 is attached to the outer wall of the storage seat 2, the outer wall of the sealing bearing 20 is fixedly connected to the inside of the storage seat 2, and the sealing bearing 20 is used for sealing between the lead screw 19 and the storage seat 2.

[0028] Working principle: when the composite material permeability experiment device is needed, first, the composite material is placed in the inside of the seat 2, then the rotating rod 16 drives the worm 17 to rotate, so that the screw rod 19 is driven to rotate through the worm wheel 18, and then the fixed ring 21 moves up and down on the outer wall of the screw rod 19, and then the composite material is fixed by the movement of the fixed ring 21, which prevents the experimental results from being affected by the deviation during the experiment, then the electric sliding rail 13 drives the connecting sleeve 14 and the liquid permeation cylinder 3 to move up and down, and then the fixed half ring 4 is moved to the outer wall of the seat 2, then the movable half ring 6 is pulled to make the movable half ring 6 adhere to the outer wall of the fixed half ring 4, then the fixed screw 7 is pulled to cooperate with the nut to fix the fixed half ring 4 and the movable half ring 6 on the outer wall of the seat 2, in this process, the sealing ring 10 is moved to the preset limiting groove 11 in the seat 2 by the movement of the liquid permeation cylinder 3, in addition, the sealing ring 10 is tightly adhered to the seat 2 by the rebound of the spring 8, realizing efficient sealing, finally, one end of the telescopic conveying pipe 15 is connected with the external water source, and the liquid is conveyed to the inside of the liquid permeation cylinder 3 through the telescopic conveying pipe 15, then the pressure device 12 is started to apply pressure, and the permeation time is observed, which achieves the experimental effect.

[0029] Finally, it should be pointed out that: the above is only the preferred embodiment of the utility model, and is not used to limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art, it still can modify the technical scheme recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A device for testing the permeability of composite materials, comprising a worktable (1), characterized in that: The upper surface of the workbench (1) is fixedly connected with a storage seat (2), the upper portion of the storage seat (2) is provided with a liquid permeation cylinder (3), the outer wall of the liquid permeation cylinder (3) is fixedly connected with a fixed half ring (4), the outer wall of the fixed half ring (4) is provided with a fixing assembly, the fixing assembly is used for fixing the storage seat (2) and the liquid permeation cylinder (3), the inside of the liquid permeation cylinder (3) is provided with a sealing assembly, the sealing assembly is used for sealing the connection between the storage seat (2) and the liquid permeation cylinder (3), the top of the liquid permeation cylinder (3) is fixedly connected with a pressure device (12), the inside of the workbench (1) is fixedly connected with a telescopic conveying pipe (15), one end of the telescopic conveying pipe (15) is fixedly connected in the inside of the liquid permeation cylinder (3); The sealing assembly comprises a sliding rod (9), the outer wall of the sliding rod (9) is slidably connected in the inside of the liquid permeation cylinder (3), the other end of the sliding rod (9) is fixedly connected with a sealing ring (10), the outer wall of the sliding rod (9) is sleeved with a spring (8), the inside of the storage seat (2) is provided with a limiting groove (11).

2. The composite material permeability experiment device according to claim 1, characterized in that: The fixing assembly comprises a hinge (5), one side of the outer wall of the hinge (5) is fixedly connected in the inside of the fixed half ring (4), the other side of the outer wall of the hinge (5) is fixedly connected with a movable half ring (6), one end of the fixed half ring (4) is rotatably connected with a fixed screw rod (7).

3. The composite material permeability experiment device according to claim 1, characterized in that: The upper surface of the workbench (1) is fixedly connected with an electric sliding rail (13), the output end of the electric sliding rail (13) is fixedly connected with a connecting sleeve (14), the inner wall of the connecting sleeve (14) is fixedly connected with the outer wall of the liquid permeation cylinder (3), the inside of the storage seat (2) is rotatably connected with a rotating rod (16), the outer wall of the rotating rod (16) is fixedly connected with a worm (17), the inside of the storage seat (2) is provided with a pressing assembly, and the pressing assembly is used for pressing and fixing the composite material.

4. The composite material permeability experiment device according to claim 3, characterized in that: The pressing assembly comprises a worm wheel (18), the outer wall of the worm wheel (18) is rotatably connected in the inside of the storage seat (2), the inside of the worm wheel (18) is fixedly connected with a lead screw (19), the outer wall of the lead screw (19) is fixedly connected with a sealing bearing (20), the outer wall of the lead screw (19) is threadedly connected with a fixed ring (21), the inside of the fixed ring (21) is slidably connected with a guide rod (22), and the bottom of the guide rod (22) is fixedly connected with the upper surface of the storage seat (2).

5. The composite material permeability experiment device according to claim 2, characterized in that: The outer wall of the sealing ring (10) is slidably connected in the inside of the limiting groove (11), and the limiting groove (11) is used for facilitating the sliding of the sealing ring (10) to the inside of the storage seat (2).

6. The composite material permeability experiment device according to claim 2, characterized in that: One end of the spring (8) is fixedly connected in the inside of the liquid permeation cylinder (3), and the other end of the spring (8) is fixedly connected with the upper surface of the sealing ring (10).

7. The composite material permeability experiment device according to claim 2, characterized in that: The inner walls of the fixed half ring (4) and the movable half ring (6) are attached to the outer wall of the storage seat (2).

8. The composite material permeability experiment device according to claim 4, characterized in that: The outer wall of the sealing bearing (20) is fixedly connected to the inside of the storage seat (2), and the sealing bearing (20) is used for sealing between the lead screw (19) and the storage seat (2).

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