Strength testing device for ultrafiltration membrane production

Abstract

The utility model relates to the technical field of ultrafiltration membrane production, and discloses a strength testing device for ultrafiltration membrane production, which comprises a base and a protective cover, the protective cover is fixedly arranged at the top end of the base, a vertical electric push rod is fixedly mounted at the top end of the protective cover, a telescopic rod of the vertical electric push rod is fixedly connected with a lifting plate, and the lifting plate is fixedly connected with the base. Fixed step blocks are fixedly arranged on one side of the bottom end of the lifting plate and one side of the top end of the base correspondingly, and the lifting plate and the base are slidably connected with a first support and a second support correspondingly. The device has the beneficial effects that the lifting plate is lifted through the vertical electric push rod, the operation space can be increased, the guide assembly can guide the lifting plate, the lifting plate can be prevented from inclining, an ultrafiltration membrane can be conveniently laid on the fixed step block and the sliding step block at the top end of the base, and the lifting plate is pushed to descend through the vertical electric push rod; the two fixed step blocks and the two sliding step blocks can clamp the two sides of the ultrafiltration membrane at the same time through a single vertical electric push rod.

Description

Technical Field

[0001] The utility model relates to the technical field of ultrafiltration membrane production, in particular to a strength testing device for ultrafiltration membrane production. Background Technique

[0002] An ultrafiltration membrane is an artificial permeable membrane used in the ultrafiltration process, generally made of polymer materials such as cellulose acetates, cellulose acetate esters, polyethylenes, polysulfones, polyamides, etc. Generally, various types of membrane modules such as tubular, plate-type, spiral-wound, and capillary-type are prefabricated, and then multiple modules are assembled together for application to increase the filtration area and facilitate maintenance.

[0003] The "strength testing device for ultrafiltration membrane" disclosed in its application number "CN202222908991.6" "comprises a base, and further comprises a clamping mechanism for clamping and fixing the ultrafiltration membrane, which is arranged above the base. One side outer wall of the top of the base is provided with an opening, and the same lead screw is rotatably connected to the inner walls on both sides of the opening. The outer wall of the circumference of the lead screw is rotationally connected with a sliding block through a thread, and a pressure sensor is installed on one side outer wall of the sliding block, and support frames are installed on both the other side outer wall of the pressure sensor and the top outer wall of the base." In the utility model, by setting a motor and turning on the motor, the lead screw on the driven gear is driven by the driving gear, so as to realize the stretching operation of the ultrafiltration membrane. The pressure sensor detects the strength of the ultrafiltration membrane, and the measured result is displayed on the display of the PLC controller, which is convenient for people to read. Since the outer diameter of the driving gear is much smaller than the outer diameter of the driven gear, the testing accuracy is improved.

[0004] However, the above method still has the following defects: By driving the extrusion plate to extrude the ultrafiltration membrane through a hydraulic cylinder, the fixation of the ultrafiltration membrane can be realized, but it is necessary to drive two extrusion plates respectively through two hydraulic cylinders, and it is difficult to drive two extrusion plates to descend simultaneously through a single hydraulic cylinder, which increases the testing cost of the strength of the ultrafiltration membrane. Content of the Utility Model

[0005] The purpose of the utility model is to provide a strength testing device for ultrafiltration membrane production, so as to solve the problem that it is difficult to drive two extrusion plates to descend simultaneously through a single hydraulic cylinder, which increases the testing cost of the strength of the ultrafiltration membrane as mentioned in the above background technique.

[0006] The utility model provides the following technical solution: a strength testing device for ultrafiltration membrane production, including a base and a protective cover. The top of the base is fixedly provided with a protective cover. The top of the protective cover is fixedly installed with a vertical electric push rod. The telescopic rod of the vertical electric push rod is fixedly connected with a lifting plate. Fixed step blocks are fixedly provided on one side of the bottom end of the lifting plate and one side of the top end of the base. A first support and a second support are respectively slidably connected to the lifting plate and the base, and the second support is driven by a driving component to displace horizontally. A return spring is provided on one side of the first support. A baffle is provided on the top of the first support. The first support and the second support are both fixedly connected with sliding step blocks. One end of the sliding step block is provided with a pulley. The top end of the lifting plate is slidably connected with the protective cover through a guiding component.

[0007] As a preferred technical solution of the utility model, sliding grooves are respectively formed on the surfaces of the lifting plate and the base. The first support and the second support are respectively slidably connected to the lifting plate and the base through the sliding grooves. One side of the first support is snap-fitted with one end of the return spring through a first spring column. The other end of the return spring is connected to the inside of the sliding groove through a second spring column.

[0008] As a preferred technical solution of the utility model, sliding grooves are respectively formed on the surface of the base and the bottom end of the lifting plate. The sliding step block is slidably connected with the sliding groove through a pulley.

[0009] As a preferred technical solution of the utility model, the driving component includes a backing plate, a horizontal electric push rod and a pressure sensor. The backing plate is fixedly connected to the inner wall of one side of the top end of the base. A horizontal electric push rod is fixedly installed on one side of the backing plate. The telescopic rod of the horizontal electric push rod is fixedly connected with the pressure sensor. One side of the pressure sensor is fixedly connected to the bottom of the second support.

[0010] As a preferred technical solution of the utility model, weight-reducing grooves are respectively formed on one side of the fixed step block and one side of the sliding step block. Flexible pads cover the surfaces of the fixed step block and the sliding step block.

[0011] As a preferred technical solution of the utility model, the guiding component includes a rectangular frame. Smooth round rods are fixedly provided at the four corners of the bottom end of the rectangular frame. The smooth round rods are slidably connected with the protective cover through rod sleeves. The bottom ends of the smooth round rods are fixedly connected to the top end of the lifting plate.

[0012] As a preferred technical solution of the utility model, an explosion-proof glass window is fixedly provided on one side of the protective cover. A rod groove is formed on the top of the protective cover. The rod sleeve is fixedly connected to the inside of the rod groove. The smooth round rod is slidably connected with the rod sleeve.

[0013] As a preferred technical solution of the present utility model, positioning plates are fixedly provided on both sides of the bottom end of the base, and positioning holes are formed on the surfaces of the positioning plates.

[0014] Compared with the prior art, the present utility model has the following beneficial effects:

[0015] 1. For the strength testing device for ultrafiltration membrane production, by lifting the lifting plate with the vertical electric push rod, the operating space can be increased. The guiding component can guide the lifting plate to prevent the lifting plate from tilting, which is convenient for laying the ultrafiltration membrane on the fixed step blocks and sliding step blocks at the top of the base. By pushing the lifting plate down with the vertical electric push rod, the two fixed step blocks and the two sliding step blocks can simultaneously clamp both sides of the ultrafiltration membrane relying on a single vertical electric push rod, and the friction between the ultrafiltration membrane can be increased by relying on the step shapes on their surfaces, without separately driving them, reducing the testing cost of the strength of the ultrafiltration membrane.

[0016] 2. For the strength testing device for ultrafiltration membrane production, by driving the driving component to drive the sliding step block to move horizontally, the sliding step block at the top of the base can push the sliding step block at the bottom of the lifting plate to move synchronously relying on the step shape and can compress the return spring, which can increase the distance between the sliding step block and the fixed step block, thus tightening the ultrafiltration membrane, facilitating the tensile strength test of the ultrafiltration membrane. The pulley can reduce the moving resistance of the sliding step block. By controlling the driving component to reset the sliding step block at the top of the base, the return spring can push the sliding step block of the lifting plate to reset, facilitating the next testing activity. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the present utility model;

[0018] Figure 2 is an exploded structural diagram of the present utility model;

[0019] Figure 3 is a schematic structural diagram of the driving component of the present utility model;

[0020] Figure 4 is a schematic structural diagram of the lifting plate of the present utility model;

[0021] Figure 5 is a schematic structural diagram of the sliding step block of the present utility model.

[0022] In the figure: 1. Base; 2. Positioning plate; 3. Protective cover; 4. Vertical electric push rod; 5. Lifting plate; 6. Fixed step block; 7. Sliding step block; 8. Support one; 9. Support two; 10. Baffle; 11. Return spring; 12. Spring column one; 13. Spring column two; 14. Flexible pad; 15. Weight reduction groove; 16. Pulley; 17. Slideway; 18. Chute; 19. Explosion-proof glass window; 20. Rod groove; 21. Driving assembly; 2101. Back plate; 2102. Horizontal electric push rod; 2103. Pressure sensor; 22. Guide assembly; 2201. Rectangular frame; 2202. Smooth round rod; 2203. Rod sleeve. Detailed implementation manner

[0023] The following will further describe the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model.

[0024] Please refer to Figures 1 to 5 , in the embodiment of the present utility model, a strength testing device for ultrafiltration membrane production includes a base 1 and a protective cover 3. The top of the base 1 is fixedly provided with a protective cover 3. The top of the protective cover 3 is fixedly installed with a vertical electric push rod 4. The telescopic rod of the vertical electric push rod 4 is fixedly connected to a lifting plate 5. One side of the bottom end of the lifting plate 5 and one side of the top end of the base 1 are both fixedly provided with fixed step blocks 6. The lifting plate 5 and the base 1 are respectively slidably connected with a support one 8 and a support two 9. And the support two 9 is driven by a driving assembly 21 to make it displace horizontally. A return spring 11 is arranged on one side of the support one 8. A baffle 10 is arranged on the top of the support one 8. Both the support one 8 and the support two 9 are fixedly connected with sliding step blocks 7. By lifting the lifting plate 5 through the vertical electric push rod 4, the operating space can be increased, which is convenient for laying the ultrafiltration membrane on the fixed step blocks 6 and the sliding step blocks 7 at the top of the base 1. By pushing the lifting plate 5 to descend through the vertical electric push rod 4, the fixed step blocks 6 and the sliding step blocks 7 can clamp the ultrafiltration membrane, and the friction force with the ultrafiltration membrane can be increased by relying on the step shape on its surface. One end of the sliding step block 7 is provided with a pulley 16. The top of the lifting plate 5 is slidably connected with the protective cover 3 through a guide assembly 22. The guide assembly 22 can guide the lifting plate 5 and prevent the lifting plate 5 from tilting;

[0025] In this embodiment, preferably, slideways 17 are opened on the surfaces of both the lifting plate 5 and the base 1. The support one 8 and the support two 9 are respectively slidably connected with the lifting plate 5 and the base 1 through the slideways 17. Through the slideways 17, the horizontal movement of the support one 8 and the support two 9 can be ensured. One side of the support one 8 is snap-connected with one end of the return spring 11 through a spring column one 12. The other end of the return spring 11 is connected with the inside of the slideway 17 through a spring column two 13. The two ends of the return spring 11 can be limited by the spring column one 12 and the spring column two 13, and the return spring 11 can be prevented from loosening and falling off;

[0026] In this embodiment, preferably, sliding grooves 18 are formed on the surface of the base 1 and the bottom end of the lifting plate 5. The sliding step block 7 is slidably connected to the sliding groove 18 through a pulley 16. The sliding groove 18 can guide the pulley 16 to prevent the pulley 16 from derailing.

[0027] In this embodiment, preferably, the driving assembly 21 includes a backing plate 2101, a horizontal electric push rod 2102 and a pressure sensor 2103. The backing plate 2101 is fixedly connected to the inner wall of one side of the top end of the base 1. A horizontal electric push rod 2102 is fixedly installed on one side of the backing plate 2101. The telescopic rod of the horizontal electric push rod 2102 is fixedly connected to a pressure sensor 2103. One side of the pressure sensor 2103 is fixedly connected to the bottom of the second support 9. The backing plate 2101 can support the horizontal electric push rod 2102. The telescopic rod of the horizontal electric push rod 2102 can support the second support 9 through the pressure sensor 2103. By pushing the pressure sensor 2103 with the horizontal electric push rod 2102, the second support 9 can drive the sliding step block 7 to horizontally displace, so as to tighten the ultrafiltration membrane.

[0028] In this embodiment, preferably, weight reduction grooves 15 are formed on one side of the fixed step block 6 and one side of the sliding step block 7. The surfaces of the fixed step block 6 and the sliding step block 7 are covered with flexible pads 14. The weight reduction grooves 15 can reduce the mass of the fixed step block 6 and the sliding step block 7, and the flexible pads 14 can increase the fitting degree and friction force between the ultrafiltration membrane and the fixed step block 6 and the sliding step block 7.

[0029] In this embodiment, preferably, the guiding assembly 22 includes a rectangular frame 2201. Smooth round rods 2202 are fixedly provided at the four corners of the bottom end of the rectangular frame 2201. The smooth round rods 2202 are slidably connected to the protective cover 3 through rod sleeves 2203. The bottom ends of the smooth round rods 2202 are fixedly connected to the top end of the lifting plate 5. The rectangular frame 2201 can increase the integrity and stability between the smooth round rods 2202. The smooth round rods 2202 can guide the lifting plate 5 through the rod sleeves 2203 to prevent the lifting plate 5 from tilting.

[0030] In this embodiment, preferably, an explosion-proof glass window 19 is fixedly provided on one side of the protective cover 3, which is convenient for testers to observe the state of the ultrafiltration membrane through the protective cover 3. A rod groove 20 is formed at the top end of the protective cover 3. The rod sleeve 2203 is fixedly connected to the inside of the rod groove 20. The rod groove 20 can fixedly install the rod sleeve 2203, and the smooth round rod 2202 is slidably connected to the rod sleeve 2203.

[0031] In this embodiment, preferably, positioning plates 2 are fixedly provided on both sides of the bottom end of the base 1. Positioning holes are formed on the surfaces of the positioning plates 2, and the base 1 can be fixedly installed through the positioning holes of the positioning plates 2.

[0032] In use, the tester first controls the telescopic rod of the vertical electric push rod 4 to contract and lift the lifting plate 5. When the lifting plate 5 rises, the smooth rod 2202 of the guiding component 22 can guide the lifting plate 5 through the rod sleeve 2203, preventing the lifting plate 5 from tilting. Then, the ultrafiltration membrane is laid on the fixed step block 6 and the sliding step block 7 at the top of the base 1. Next, the tester controls the telescopic rod of the vertical electric push rod 4 to extend and push the lifting plate 5 downward. The two fixed step blocks 6 and the two sliding step blocks 7 can simultaneously clamp both sides of the ultrafiltration membrane by relying on a single vertical electric push rod 4, and the friction between the ultrafiltration membrane can be increased by the step shapes on their surfaces. During the clamping of the ultrafiltration membrane, the flexible pad 14 can ensure the fit between the ultrafiltration membrane and the fixed step block 6 and the sliding step block 7. When the clamping force is large, the flexible pad 14 can cooperate with the ultrafiltration membrane to deform, preventing the ultrafiltration membrane from breaking;

[0033] After both sides of the ultrafiltration membrane are fixed, the staff uses the horizontal electric push rod 2102 of the driving component 21 to push the pressure sensor 2103 to move horizontally. The second support 9 can drive the sliding step block 7 at the top of the base 1 to move horizontally. The pulley 16 can reduce the moving resistance of the sliding step block 7. The sliding step block 7 at the top of the base 1 can push the sliding step block 7 at the bottom of the lifting plate 5 to move synchronously and compress the return spring 11 by relying on the step shape, increasing the distance between the sliding step block 7 and the fixed step block 6. The sliding step block 7 and the fixed step block 6 can tighten the ultrafiltration membrane. During this process, the pressure sensor 2103 can monitor the thrust of the horizontal electric push rod 2102 and the tensile force on the ultrafiltration membrane, enabling the tensile strength test of the ultrafiltration membrane. During the test, the tester can observe the state of the ultrafiltration membrane through the explosion-proof glass window 19;

[0034] After the test, the tester first uses the vertical electric push rod 4 to lift the lifting plate 5 to stop limiting the ultrafiltration membrane, then removes the ultrafiltration membrane. After that, the horizontal electric push rod 2102 of the driving component 21 is used to pull the sliding step block 7 at the top of the base 1 to reset. The return spring 11 can push the sliding step block 7 of the lifting plate 5 to reset, facilitating the next test activity.

[0035] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A strength testing device for ultrafiltration membrane production, comprising a base (1) and a protective cover (3), characterized in that: A protective cover (3) is fixedly provided at the top of the base (1), a vertical electric push rod (4) is fixedly installed at the top of the protective cover (3), a telescopic rod of the vertical electric push rod (4) is fixedly connected to a lifting plate (5), one side of the bottom end of the lifting plate (5) and one side of the top end of the base (1) are fixedly provided with a fixed step block (6), the lifting plate (5) and the base (1) are respectively slidably connected with a support 1 (8) and a support 2 (9), and the support 2 (9) is driven by a driving component (21) to move horizontally, a return spring (11) is provided on one side of the support 1 (8), a baffle (10) is provided at the top of the support 1 (8), the support 1 (8) and the support 2 (9) are both fixedly connected with a sliding step block (7), one end of the sliding step block (7) is provided with a pulley (16), and the top of the lifting plate (5) is slidably connected to the protective cover (3) through a guide component (22).

2. The strength testing device for ultrafiltration membrane production according to claim 1, characterized in that: The surfaces of the lifting plate (5) and the base (1) are both provided with a slideway (17); the support 1 (8) and the support 2 (9) are respectively slidably connected to the lifting plate (5) and the base (1) through the slideway (17); one side of the support 1 (8) is snap-connected to one end of a return spring (11) through a spring column 1 (12); the other end of the return spring (11) is connected to the inside of the slideway (17) through a spring column 2 (13).

3. The strength testing device for ultrafiltration membrane production according to claim 1, characterized in that: The surface of the base (1) and the bottom end of the lifting plate (5) are both provided with a sliding groove (18), and the sliding step block (7) is slidably connected to the sliding groove (18) via a pulley (16).

4. The strength testing device for ultrafiltration membrane production according to claim 1, characterized in that: The driving assembly (21) comprises a support plate (2101), a horizontal electric push rod (2102) and a pressure sensor (2103); the support plate (2101) is fixedly connected to the inner wall of one side of the top end of the base (1); a horizontal electric push rod (2102) is fixedly installed on one side of the support plate (2101); a telescopic rod of the horizontal electric push rod (2102) is fixedly connected to the pressure sensor (2103); and one side of the pressure sensor (2103) is fixedly connected to the bottom of the second support (9).

5. The strength testing device for ultrafiltration membrane production according to claim 1, characterized in that: One side of the fixed step block (6) and one side of the sliding step block (7) are both provided with a weight-reducing groove (15), and the surface of the fixed step block (6) and the surface of the sliding step block (7) are covered with a flexible pad (14).

6. The strength testing device for ultrafiltration membrane production according to claim 1, characterized in that: The guide assembly (22) comprises a rectangular frame (2201), the four corners of the bottom end of the rectangular frame (2201) are fixedly provided with smooth round rods (2202), the smooth round rods (2202) are slidably connected to the protective cover (3) through a rod sleeve (2203), and the bottom end of the smooth round rod (2202) is fixedly connected to the top end of the lifting plate (5).

7. The strength testing device for ultrafiltration membrane production according to claim 6, characterized in that: An explosion-proof glass window (19) is fixedly provided on one side of the protective cover (3), a rod groove (20) is provided at the top end of the protective cover (3), the rod sleeve (2203) is fixedly connected to the inside of the rod groove (20), and the smooth round rod (2202) is slidably connected to the rod sleeve (2203).

8. The strength testing device for ultrafiltration membrane production according to claim 1, characterized in that: Positioning plates (2) are fixedly provided on both sides of the bottom end of the base (1), and positioning holes are provided on the surface of the positioning plates (2).

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