A nanofiltration membrane installation positioning structure

Abstract

The utility model discloses a kind of nanofiltration membrane installation positioning structure, including positioning device;The positioning device is composed of installation cylinder, mounting plate, gear disc, clamping mechanism and positioning mechanism, the mounting plate is installed in installation cylinder both ends, gear disc is rotationally installed in the mounting plate outside by bearing, power mechanism is installed between the gear disc and mounting plate, the clamping mechanism is composed of moving rod and clamping plate, the positioning mechanism is composed of guide pulley and moving rod.The utility model power mechanism drive the rotation of the gear disc, moving rod equipped with guide pulley is moved by first guide mechanism, guide pulley and nanofiltration membrane edge or specific reference surface contact, by adjusting moving rod position, make nanofiltration membrane be in preset installation position, complete positioning calibration, in this process, second guide mechanism ensures that gear disc does not deviate from the center when rotating, limit mechanism limits moving rod stroke, avoid excessive action damage component.

Description

Technical Field

[0001] This utility model relates to the field of nanofiltration membrane installation technology, specifically a nanofiltration membrane installation and positioning structure. Background Technology

[0002] Nanofiltration membranes are a new type of separation membrane with a molecular weight cutoff between that of reverse osmosis and ultrafiltration membranes. The pore size of nanofiltration membranes is generally between 1 and 2 nm, allowing solvent molecules or certain low molecular weight solutes and low valence ions to pass through. It is a functional semi-permeable membrane. Nanofiltration membranes require a positioning mechanism for installation assistance.

[0003] Chinese Patent No. 202220903261.4 discloses an auxiliary positioning device for installing ceramic nanofiltration membranes, including a housing and a ceramic nanofiltration membrane body. The top and bottom of the housing are respectively provided with an inlet and an outlet. The top of the housing is provided with two clearance grooves, and two rotating shafts are movably connected in the clearance grooves. Rollers are fixedly connected to the outside of the rotating shafts. One end of the rotating shaft passes through the housing and is fixedly connected to a gear. Fixing seats are fixedly connected to both outer walls of the housing. Racks are movably connected in the fixing seats and mesh with the gears. Fixing blocks are fixedly connected to both outer walls of the housing.

[0004] This invention fails to secure the device to the installation location during nanofiltration membrane installation, resulting in installation difficulties. Utility Model Content

[0005] The purpose of this invention is to provide a nanofiltration membrane installation and positioning structure to solve the problems mentioned in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a nanofiltration membrane installation and positioning structure, including a positioning device; the positioning device consists of an installation cylinder, an installation plate, a gear disk, a clamping mechanism, and a positioning mechanism; the installation plate is installed at both ends of the installation cylinder; a gear disk is rotatably mounted on the outer side of the installation plate via bearings; a power mechanism is installed between the gear disk and the installation plate; the clamping mechanism consists of a moving rod and a clamping plate; the positioning mechanism consists of a guide wheel and a moving rod; the guide wheel is rotatably mounted or the clamping plate is fixedly mounted on the bottom end of the moving rod; a first guiding mechanism is installed between the moving rod and the gear disk; a limit mechanism is installed between the moving rod and the installation plate; a second guiding mechanism is installed between the installation plate and the gear disk; and a fixing mechanism is installed at the upper end of the second guiding mechanism.

[0007] Preferably, the first guiding mechanism consists of a first guide groove and a moving rod, with one side of the upper end of the moving rod slidably mounted inside the first guide groove, which is located on the upper side of the gear disk.

[0008] Preferably, the limiting mechanism consists of a limiting groove and a limiting block. The limiting block is mounted on the upper side of the mounting plate, the limiting groove is disposed on the upper side of the moving rod, and the limiting block is slidably mounted inside the limiting groove.

[0009] Preferably, the power mechanism consists of an electric motor and a drive gear. The electric motor is mounted on one side of the mounting plate, and the drive gear is mounted on the front end of the electric motor. The drive gear and the gear disk are meshed together.

[0010] Preferably, the second guiding mechanism consists of a second guide groove and a slide rod. The slide rod is welded to one side of the mounting plate, and the second guide groove is located at a corresponding position on the upper side of the gear disk. The slide rod and the second guide groove are slidably connected.

[0011] Preferably, the fixing mechanism consists of a fixing nut and a handle. The handle is installed on both sides of the fixing bolt, and the fixing nut is installed on the upper end of the slide rod by threaded rotation. The slide rod is provided with threads on the outside.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. The power mechanism drives the gear disk to rotate, which in turn moves the moving rod equipped with guide wheels through the first guide mechanism. The guide wheels contact the edge of the nanofiltration membrane or a specific reference surface. By adjusting the position of the moving rod, the nanofiltration membrane is positioned in the preset installation position, completing the positioning calibration. During this process, the second guide mechanism ensures that the gear disk does not deviate from the center when rotating, and the limiting mechanism restricts the travel of the moving rod to avoid excessive movement and damage to the components. After the positioning calibration is completed, the second guide mechanism is locked by the fixing mechanism, thereby fixing the position of the gear disk and the moving rod and maintaining the positioning state, which facilitates the operator to install and fix the nanofiltration membrane subsequently. 2. When the moving rod moves under the action of the first guide mechanism, the cooperation between the limiting block and the limiting groove restricts the degree of freedom of the moving rod, allowing the moving rod to move linearly along the direction of the limiting groove, avoiding lateral offset or rotation of the moving rod during the movement, ensuring the movement accuracy of the clamping mechanism and the positioning mechanism, and ensuring the accuracy of nanofiltration membrane positioning. 3. When the gear disk rotates under the drive of the power mechanism, the second guide groove slides along the slide rod. The slide rod guides and supports the movement of the gear disk, restricting the gear disk to only make circular motion around the center of the mounting plate, preventing radial offset of the gear disk during rotation, ensuring the stability and accuracy of the gear disk's movement, and providing structural protection for the precise operation of the positioning device. 4. After the positioning mechanism completes the positioning calibration of the nanofiltration membrane and the clamping mechanism clamps the positioning device and the equipment, the fixing nut is moved downward along the slide bar thread by rotating the handle until the fixing nut is tightly pressed against the upper side of the gear disk. The friction between the nut and the gear disk is used to lock the gear disk in the current position to prevent it from rotating unexpectedly during subsequent installation, thereby maintaining the stable positioning state of the positioning device and ensuring the smooth progress of the nanofiltration membrane installation. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the clamping mechanism of this utility model; Figure 3 This is a schematic diagram of the positioning mechanism of this utility model; Figure 4 This is a schematic diagram of the mounting plate of this utility model.

[0014] In the diagram: 1. Positioning device; 2. Mounting cylinder; 3. Mounting plate; 4. Clamping mechanism; 5. Positioning mechanism; 6. Power mechanism; 7. Electric motor; 8. Drive gear; 9. Gear disk; 10. First guide mechanism; 11. First guide groove; 12. Moving rod; 13. Second guide mechanism; 14. Second guide groove; 15. Slide rod; 16. Limiting block; 17. Limiting mechanism; 18. Limiting groove; 19. Clamping plate; 20. Guide wheel; 21. Fixing mechanism; 22. Fixing nut; 23. Handle. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4In this embodiment of the utility model, a nanofiltration membrane installation and positioning structure includes a positioning device 1. The positioning device 1 consists of an installation cylinder 2, an installation plate 3, a gear disk 9, a clamping mechanism 4, and a positioning mechanism 5. The installation plate 3 is installed at both ends of the installation cylinder 2. The gear disk 9 is rotatably installed on the outer side of the installation plate 3 via bearings. A power mechanism 6 is installed between the gear disk 9 and the installation plate 3. The clamping mechanism 4 consists of a moving rod 12 and a clamping plate 19. The positioning mechanism 5 consists of a guide wheel 20 and a moving rod 12. The guide wheel 20 is rotatably installed or the clamping plate 19 is fixedly installed at the bottom end of the moving rod 12. A first guiding mechanism 10 is installed between the moving rod 12 and the gear disk 9. A limit mechanism 17 is installed between the moving rod 12 and the installation plate 3. A second guiding mechanism 13 is installed between the installation plate 3 and the gear disk 9. A fixing mechanism 21 is installed at the upper end of the second guiding mechanism 13.

[0017] The first guiding mechanism 10 consists of a first guiding groove 11 and a moving rod 12. The upper end of the moving rod 12 is slidably installed inside the first guiding groove 11, which is located on the upper side of the gear disk 9. When the gear disk 9 rotates under the drive of the power mechanism 6, the first guiding groove 11 rotates synchronously with the gear disk 9. Through the force exerted by the groove wall on the moving rod 12, the moving rod 12 is guided to move linearly along the guide groove trajectory, thereby driving the clamping mechanism 4 or the positioning mechanism 5 to complete the position adjustment. This provides a guiding basis for the precise positioning of the nanofiltration membrane, facilitating the clamping, fixing, and installation guidance of nanofiltration membrane shells and nanofiltration membranes of different diameters.

[0018] The limiting mechanism 17 consists of a limiting groove 18 and a limiting block 16. The limiting block 16 is installed on the upper side of the mounting plate 3, and the limiting groove 18 is located on the upper side of the moving rod 12. The limiting block 16 is slidably installed inside the limiting groove 18. When the moving rod 12 moves under the action of the first guide mechanism 10, the cooperation between the limiting block 16 and the limiting groove 18 restricts the degree of freedom of movement of the moving rod 12, allowing the moving rod 12 to move linearly along the direction of the limiting groove 18. This prevents the moving rod 12 from shifting laterally or rotating during movement, ensuring the movement accuracy of the clamping mechanism 4 and the positioning mechanism 5, and guaranteeing the accuracy of nanofiltration membrane positioning.

[0019] The power mechanism 6 consists of an electric motor 7 and a drive gear 8. The electric motor 7 is mounted on one side of the mounting plate 3, and the drive gear 8 is mounted on the front end of the electric motor 7. The drive gear 8 and the gear disk 9 are meshed together. When the electric motor 7 starts, the output shaft drives the drive gear 8 to rotate, and the power is transmitted to the gear disk 9 through gear meshing. The gear disk 9 is driven to rotate around the bearing on the mounting plate 3, thereby providing the power source for the movement of the gear disk 9 in the entire positioning device 1, and realizing the position adjustment action of the subsequent clamping mechanism 4 and positioning mechanism 5.

[0020] The second guiding mechanism 13 consists of a second guide groove 14 and a slide rod 15. The slide rod 15 is welded to one side of the mounting plate 3, and the second guide groove 14 is located at a corresponding position on the upper side of the gear disk 9. The slide rod 15 and the second guide groove 14 are slidably connected. When the gear disk 9 rotates under the drive of the power mechanism 6, the second guide groove 14 slides along the slide rod 15. The slide rod 15 guides and supports the movement of the gear disk 9, restricting the gear disk 9 to only make circular motion around the center of the mounting plate 3, preventing radial offset of the gear disk 9 during rotation, ensuring the stability and accuracy of the movement of the gear disk 9, and providing structural protection for the precise operation of the positioning device 1.

[0021] The fixing mechanism 21 consists of a fixing nut 22 and a handle 23. The handle 23 is installed on both sides of the fixing bolt. The fixing nut 22 is installed on the upper end of the slide rod 15 by threaded rotation. The slide rod 15 has threads on its outer side. After the positioning mechanism 5 completes the positioning calibration of the nanofiltration membrane and the clamping mechanism 4 clamps the positioning device 1 and the equipment, the fixing nut 22 is moved downward along the thread of the slide rod 15 by rotating the handle 23 until the fixing nut 22 is tightly pressed against the upper side of the gear disk 9. The friction between the nut and the gear disk 9 locks the gear disk 9 in the current position, preventing it from rotating accidentally during subsequent installation. This keeps the positioning state of the positioning device 1 stable and ensures the smooth installation of the nanofiltration membrane.

[0022] The working principle and usage process of this utility model: The overall structure of the positioning device 1 is centered on the mounting cylinder 2, with mounting plates 3 installed at both ends. Both the mounting plates 3 and the gear disk 9 are hollow to facilitate the passage of nanofiltration membranes and related pipelines, adapting to installation space requirements. The gear disk 9 is mounted on the outer side of the mounting plate 3 via bearings, forming two independent motion units. A clamping mechanism 4 is mounted on the upper side of the mounting plate 3 at one end of the mounting cylinder 2, and a positioning mechanism 5 is mounted on the upper side of the mounting plate 3 on the other side. The two are respectively mounted on two different gear disks 9 and are controlled independently by two sets of independent power mechanisms 6, realizing independent adjustment of clamping and positioning actions, improving operational flexibility. During operation, the power mechanism 6 corresponding to the clamping mechanism 4 is activated first: the power mechanism 6 drives the gear disk 9 to rotate, and through the first guide mechanism 10 between the gear disk 9 and the moving rod 12, the circular motion of the gear disk 9 is converted into the directional movement of the moving rod 12, driving the clamping plate 19 at the bottom of the moving rod 12. Approaching the external pipe of the nanofiltration membrane until the clamping plate 19 is tightly clamped on the upper side of the pipe, the entire positioning device 1 is fixed to the pipe by the friction between the clamping plate 19 and the pipe, providing a stable reference for subsequent positioning calibration. Then, the power mechanism 6 corresponding to the positioning mechanism 5 is activated: Similarly, the power mechanism 6 drives the gear disk 9 to rotate, which drives the moving rod 12 equipped with the guide wheel 20 to move through the first guide mechanism 10. The guide wheel 20 contacts the edge of the nanofiltration membrane or a specific reference surface. By adjusting the position of the moving rod 12, the nanofiltration membrane is placed in the preset installation position, and the positioning calibration is completed. During this process, the second guide mechanism 13 ensures that the gear disk 9 does not deviate from the center when rotating, and the limiting mechanism 17 limits the stroke of the moving rod 12 to avoid excessive movement and damage to the components. After the positioning calibration is completed, the second guide mechanism 13 is locked by the fixing mechanism 21, thereby fixing the position of the gear disk 9 and the moving rod 12 and maintaining the positioning state, which facilitates the operator to install and fix the nanofiltration membrane.

[0023] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A nanofiltration membrane mounting and positioning structure, comprising a positioning device (1); characterized in that: The positioning device (1) consists of a mounting cylinder (2), a mounting plate (3), a gear disk (9), a clamping mechanism (4), and a positioning mechanism (5). The mounting plate (3) is installed at both ends of the mounting cylinder (2). The gear disk (9) is rotatably mounted on the outer side of the mounting plate (3) via bearings. A power mechanism (6) is installed between the gear disk (9) and the mounting plate (3). The clamping mechanism (4) consists of a moving rod (12) and a clamping plate (19). The positioning mechanism (5) consists of a guide wheel (20) and a moving rod (12). The guide wheel (20) is rotatably mounted or the clamping plate (19) is fixedly mounted on the bottom end of the moving rod (12). A first guide mechanism (10) is installed between the moving rod (12) and the gear disk (9). A limit mechanism (17) is installed between the moving rod (12) and the mounting plate (3). A second guide mechanism (13) is installed between the mounting plate (3) and the gear disk (9). A fixing mechanism (21) is installed on the upper end of the second guide mechanism (13).

2. The nanofiltration membrane mounting and positioning structure according to claim 1, characterized in that: The first guide mechanism (10) consists of a first guide groove (11) and a moving rod (12). The upper end of the moving rod (12) is slidably installed inside the first guide groove (11), and the first guide groove (11) is located on the upper side of the gear disk (9).

3. The nanofiltration membrane mounting and positioning structure according to claim 1, characterized in that: The limiting mechanism (17) consists of a limiting groove (18) and a limiting block (16). The limiting block (16) is installed on the upper side of the mounting plate (3), the limiting groove (18) is located on the upper side of the moving rod (12), and the limiting block (16) is slidably installed inside the limiting groove (18).

4. The nanofiltration membrane mounting and positioning structure according to claim 1, characterized in that: The power mechanism (6) consists of an electric motor (7) and a drive gear (8). The electric motor (7) is mounted on one side of the mounting plate (3), and the drive gear (8) is mounted on the front end of the electric motor (7). The drive gear (8) and the gear disk (9) are meshed together.

5. The nanofiltration membrane mounting and positioning structure according to claim 1, characterized in that: The second guide mechanism (13) consists of a second guide groove (14) and a slide rod (15). The slide rod (15) is welded to one side of the mounting plate (3). The second guide groove (14) is set at the corresponding position on the upper side of the gear disk (9). The slide rod (15) and the second guide groove (14) are slidably connected.

6. The nanofiltration membrane mounting and positioning structure according to claim 5, characterized in that: The fixing mechanism (21) consists of a fixing nut (22) and a handle (23). The fixing nut (22) is installed on the upper end of the slide rod (15) by thread rotation. The slide rod (15) has threads on its outer side.

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