Flat sheet membrane strength testing device

Abstract

The utility model discloses flat plate diaphragm strength detection device, including water tank, water is installed in water tank, be equipped with left fixed plate and right fixed plate in water tank, be equipped with a plurality of pairs of clamping plate on left fixed plate and right fixed plate respectively, the inside of one end of clamping plate is equipped with the boss part, and the other end is connected left fixed plate or right fixed plate through bolt, and the both sides in water tank inside are installed slide rail respectively, and left fixed plate and right fixed plate are driven on the synchronous movement of slide rail through reciprocating drive mechanism. The utility model discloses through setting up left, right fixed plate and the clamping plate of boss part of reciprocating movement, has realized the dynamic strength test of flat plate diaphragm in water, and effectively simulated the water flow impact and reciprocating load under actual working condition. The slide rail and screw mechanism have guaranteed the motion stability and the parameter adjustability, and the clamping plate through -hole design has strengthened the clamping adaptability and stability.

Description

Technical Field

[0001] This utility model belongs to the field of testing equipment technology, specifically relating to a flat sheet diaphragm strength testing device. Background Technology

[0002] Flat sheet membranes, as core filtration elements in membrane separation technology, are widely used in water treatment, food, pharmaceuticals, and biochemical industries. In actual operation, they are typically exposed to aquatic environments for extended periods, enduring complex mechanical forces such as water flow impact, mechanical vibration, and cyclic loads. This makes them highly susceptible to deformation, breakage, or seal failure due to material fatigue or structural defects, severely impacting filtration efficiency and service life. Therefore, effectively testing the structural strength and durability of flat sheet membranes in aquatic environments is a crucial step in evaluating their performance and reliability.

[0003] Currently, most common diaphragm strength tests are conducted in air using static mechanical experiments, which cannot accurately simulate the dynamic working state and the effects of liquid-solid coupling in water. Some underwater testing devices also suffer from problems such as unstable clamping, limited motion simulation, and inflexible adjustment of test parameters, leading to deviations between test results and actual operating conditions. Utility Model Content

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a flat diaphragm strength testing device, including a water tank filled with water, a left fixed plate and a right fixed plate provided inside the water tank, and several pairs of clamping plates respectively provided on the left fixed plate and the right fixed plate, each pair of clamping plates including two opposing clamping plates, a protrusion provided on the inner side of one end of the clamping plate, and the other end connected to the left fixed plate or the right fixed plate by bolts, slide rails are installed on both sides inside the water tank, the left fixed plate and the right fixed plate are respectively installed on the slide rails, and the left fixed plate and the right fixed plate are driven to move synchronously on the slide rails by a reciprocating drive mechanism, with the clamping plates located below the liquid surface.

[0005] As a preferred embodiment of the above technical solution, the left and right fixing plates are respectively provided with a number of through holes evenly spaced from top to bottom, and the two clamping plates in each pair of clamping plates are connected by bolts passing through the through holes.

[0006] As a preferred embodiment of the above technical solution, an elastic pad is provided between the clamping plate and the left or right fixing plate.

[0007] As a preferred embodiment of the above technical solution, the left and right fixed plates are respectively provided with a plurality of movable holes, the slide rail includes a plurality of slide rods, the slide rods pass through the movable holes respectively, and the left and right fixed plates are fixedly connected by a linkage plate.

[0008] As a preferred embodiment of the above technical solution, the reciprocating drive mechanism includes an electric push rod, a cylinder, or a lead screw mechanism driven by a motor.

[0009] As a preferred embodiment of the above technical solution, the reciprocating drive mechanism is a lead screw mechanism, which includes a lead screw, with both ends of the lead screw rotatably connected to a water tank, a motor driving the lead screw to rotate, and a lead screw nut installed on the lead screw, which is fixedly connected to the middle of the linkage plate.

[0010] As a preferred embodiment of the above technical solution, the water tank is equipped with spray heads at both ends, and a submersible pump is installed inside the water tank. The water pump is connected to the spray heads through a water pipe.

[0011] The beneficial effects of this invention are as follows: The flat diaphragm strength testing device of this invention, through the setting of reciprocatingly movable left and right fixed plates and a clamping plate with protrusions, realizes the dynamic strength testing of flat diaphragms in water, effectively simulating the water flow impact and reciprocating load under actual working conditions. The slide rail and lead screw mechanism ensures the smoothness of movement and the adjustability of parameters, while the through-hole design of the clamping plate enhances the clamping adaptability and stability. In addition, the spray head and submersible pump system can simulate a high flow velocity environment, comprehensively testing the structural performance and filtration effect of the diaphragm under different water flow conditions, and the test results are accurate and reliable. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model. Detailed Implementation

[0013] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0014] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0015] 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.

[0016] like Figure 1 As shown, the flat diaphragm strength testing device includes a water tank 1 filled with water. Inside the water tank 1 are a left fixed plate 2 and a right fixed plate 3. Several pairs of clamping plates 4 are respectively mounted on the left fixed plate 2 and the right fixed plate 3. Each pair of clamping plates 4 includes two opposing clamping plates 4. One end of each clamping plate 4 has a protrusion 5 on its inner side, and the other end is connected to either the left fixed plate 2 or the right fixed plate 3 by bolts. Slide rails are installed on both sides inside the water tank 1. The left fixed plate 2 and the right fixed plate 3 are respectively mounted on the slide rails and are driven synchronously on the slide rails by a reciprocating drive mechanism. The clamping plates 4 are located below the liquid surface. The two sides of the flat diaphragm are clamped between the two clamping plates 4, and the clamping plates 4 are locked with bolts, using the protrusions 5 to clamp the flat diaphragm. The reciprocating drive mechanism drives the left fixed plate 2 and the right fixed plate 3 to reciprocate on the slide rails, causing the flat diaphragm to swing back and forth in the water. After a period of time, its structural condition is observed, the filtration effect is tested, and thus its structural strength under underwater working conditions is tested.

[0017] Furthermore, the left fixing plate 2 and the right fixing plate 3 are each provided with a plurality of through holes 6 evenly spaced from top to bottom. The two clamping plates 4 in each pair are connected by bolts passing through the through holes 6. The clamping plates 4 are installed in appropriate positions using the through holes 6 according to the size of the flat diaphragm. In addition to the bolts passing through the through holes 6, additional bolts can be added between the two clamping plates 4 to ensure that the protrusion 5 can clamp the flat diaphragm. To maintain the stability of the clamping plates 4, two rows of through holes 6 can be provided on the left fixing plate 2 and the right fixing plate 3.

[0018] Furthermore, an elastic pad is provided between the clamping plate 4 and the left fixing plate 2 or the right fixing plate 3.

[0019] Furthermore, the left fixed plate 2 and the right fixed plate 3 are respectively provided with a plurality of movable holes 7, and the slide rail includes a plurality of slide rods 8, which pass through the movable holes 7 respectively. The left fixed plate 2 and the right fixed plate 3 are fixedly connected by a linkage plate 9. The cooperation between the slide rods 8 and the movable holes 7 makes the movement of the left fixed plate 2 and the right fixed plate 3 smooth and stable.

[0020] Furthermore, the reciprocating drive mechanism includes a lead screw mechanism driven by a motor.

[0021] Furthermore, the reciprocating drive mechanism is a lead screw mechanism, which includes a lead screw 10. Both ends of the lead screw 10 are rotatably connected to the water tank 1. The motor 15 drives the lead screw 10 to rotate. A lead screw nut 11 is installed on the lead screw 10, and the lead screw nut 11 is fixedly connected to the middle of the linkage plate 9. The lead screw 10 rotates forward and backward alternately, causing the left fixed plate 2 and the right fixed plate 3 to move back and forth on the slide rail, thereby driving the flat diaphragm to move back and forth in the water to test its structural strength. The frequency and amplitude of the flat diaphragm's back-and-forth movement are controlled by the motor 15.

[0022] Furthermore, the water tank 1 has spray heads 12 at both ends, and a submersible pump 13 is installed inside the water tank 1. The pump 13 is connected to the spray heads 12 via water pipes. The pump 13 draws water from the water tank 1 and then sprays it out through the spray heads 12, creating a certain flow velocity in the water tank 1 to simulate high flow velocity conditions and test the impact of water flow on a stationary flat diaphragm. A valve is installed on the water pipe, allowing the spray heads 12 to be opened selectively.

[0023] It is worth mentioning that the technical features of the motor, spray head 12, water pump 13 and other components involved in this utility model patent application should be regarded as prior art. The specific structure, working principle and possible control method and spatial arrangement of these technical features can be adopted by conventional choices in the field and should not be regarded as the inventive point of this utility model patent. This utility model patent will not be further elaborated in detail.

[0024] The preferred embodiments of the present invention have been described in detail above. It should be understood that those skilled in the art can make many modifications and variations based on the concept of the present invention without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the present invention through logical analysis, reasoning or limited experimentation on the basis of the prior art should be within the scope of protection defined by the claims.

Claims

1. A flat diaphragm strength testing device, characterized in that, It includes a water tank filled with water. Inside the water tank are a left fixed plate and a right fixed plate. Several pairs of clamping plates are provided on the left and right fixed plates respectively. Each pair of clamping plates includes two opposing clamping plates. One end of the clamping plate has a protrusion on its inner side, and the other end is connected to the left or right fixed plate by bolts. Slide rails are installed on both sides inside the water tank. The left and right fixed plates are respectively installed on the slide rails. The left and right fixed plates are driven to move synchronously on the slide rails by a reciprocating drive mechanism. The clamping plates are located below the liquid surface.

2. The flat diaphragm strength testing device as described in claim 1, characterized in that, The left and right fixing plates are each provided with a number of through holes that are evenly spaced from top to bottom, and the two clamping plates in each pair are connected by bolts passing through the through holes.

3. The flat diaphragm strength testing device as described in claim 2, characterized in that, An elastic pad is provided between the clamping plate and the left or right fixing plate.

4. The flat diaphragm strength testing device as described in claim 1, characterized in that, The left and right fixed plates are respectively provided with a number of movable holes, and the slide rail includes a number of slide rods, which pass through the movable holes respectively. The left and right fixed plates are fixedly connected by a linkage plate.

5. The flat diaphragm strength testing device as described in claim 4, characterized in that, The reciprocating drive mechanism includes an electric push rod, a cylinder, or a lead screw mechanism driven by a motor.

6. The flat diaphragm strength testing device as described in claim 5, characterized in that, The reciprocating drive mechanism is a lead screw mechanism, which includes a lead screw, with both ends of the lead screw rotatably connected to the water tank. The motor drives the lead screw to rotate, and a lead screw nut is installed on the lead screw, which is fixedly connected to the middle of the linkage plate.

7. The flat diaphragm strength testing device as described in claim 1, characterized in that, The water tank is equipped with spray nozzles at both ends, and a submersible pump is installed inside the water tank. The pump is connected to the spray nozzles via water pipes.

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