Tool for disassembling end cover of reverse osmosis pressure container

Abstract

The utility model relates to the technical field of disassembling tools, in particular to a tool for disassembling an end cover of a reverse osmosis pressure container. A tool for disassembling an end cover of a reverse osmosis pressure vessel comprises a supporting transverse plate and an end cover connecting rod, a through hole, penetrating through the supporting transverse plate, of the end cover connecting rod is a center hole, the center hole is a kidney-shaped hole, the section of the rotating end of the end cover connecting rod is in a waist drum shape, and the shape of the section of the rotating end is matched with that of the center hole. The waist-shaped hole is matched with the end cover connecting rod, so that when the end cover connecting rod is pulled out of the end cover of the pressure vessel, the coaxiality of the end cover connecting rod and the inner wall of the pressure vessel when the end cover connecting rod is pulled out, the stress damage to the connecting part of the end cover of the pressure vessel, and the abrasion between the thread of the rotating end of the end cover connecting rod and the supporting transverse plate and the center hole are avoided; the connecting end of the end cover connecting rod can be selectively sleeved with the internal thread reducer union, so that different types of pressure vessel end covers can be connected through the same end cover connecting rod, and the different types of pressure vessel end covers can be disassembled.

Description

Technical Field

[0001] The utility model relates to the technical field of disassembly tools, in particular to a tool for disassembling an end cover of a reverse osmosis pressure vessel. Background Art

[0002] At present, membrane technology has been widely used in the water treatment industry. Membrane separation can remove a large number of impurities in water. For example, inorganic substances, metal ions, organic matter, colloids, and even bacteria and viruses are removed. It is a new technology for high-efficiency, low-consumption, and pollution-free water treatment. Membrane technology has the advantages of no phase change, modularization, simple process, convenient operation, small footprint, low investment, and low power consumption. It is widely used in industrial water treatment. There are more and more membrane system equipment, and equipment maintenance is also more frequent. Among them, reverse osmosis and nanofiltration membrane elements are usually installed in circular tubular reverse osmosis pressure vessels, and the two ends are blocked by end plates. The end plates of common reverse osmosis pressure vessels are embedded in the reverse osmosis pressure vessels. When the membrane elements need to be removed, the end plates of the pressure vessel must be removed first. Generally, special tools are not available on site, and the disassembly method is time-consuming and labor-intensive. Therefore, it is necessary to improve the existing tools for removing the end caps of membrane pressure vessels to solve the above problems. Prior art KR101767198B1 provides a reverse osmosis pressure vessel with an integral rotating locking cover. The cover includes a built-in reverse osmosis membrane assembly, an end plate for sealing the pressure vessel, a locking device for securing the end plate and locking / unlocking the pressure vessel, and a handle for operating the sliding plate. The cover, including the O-ring, end plate, locking device, sliding plate, and handle, is integrated. However, each reverse osmosis pressure vessel end cap in the prior art patent is equipped with a removal tool, which increases the manufacturing cost of the reverse osmosis pressure vessel end cap. The removal tool also increases the volume of the reverse osmosis pressure vessel end cap, requiring more space for installation and use. The inventors believe that there is still considerable room for improvement. Utility Model Content

[0003] The design purpose of the present utility model is to facilitate the removal of the end cap of the pressure vessel embedded in the reverse osmosis pressure vessel, reduce the disassembly cost of the end cap of the pressure vessel, and enable the disassembly tool to adapt to various types of end caps of pressure vessels on the market. The utility model provides a tool for disassembling the end cap of the reverse osmosis pressure vessel, including a supporting cross plate and an end cap connecting rod, the end cap connecting rod passes through the supporting cross plate, the through hole of the supporting cross plate through which the end cap connecting rod passes is a center hole, the center hole is a waist-shaped hole, the cross section of the rotating end of the end cap connecting rod is a waist drum shape, and the cross-sectional shape of the rotating end matches the shape of the center hole. The waist-shaped hole is matched with the end cap connecting rod, and when the end cap connecting rod is pulled out of the pressure vessel end cap, the force direction of the end cap connecting rod is prevented from having an angle with the inner wall of the pressure vessel when the end cap connecting rod is pulled out, causing stress damage to the connection part of the pressure vessel end cap; and when the end cap connecting rod is pulled out, wear between the thread of the rotating end of the end cap connecting rod and the supporting cross plate and the center hole is avoided.

[0004] Preferably, one end of the end cap connecting rod is a connecting end, which is connected to the end cap of the pressure vessel, and the other end of the end cap connecting rod is a rotating end, which is provided with a rotating handle. Rotating the handle rotates the end cap connecting rod to fix the connecting end of the end cap connecting rod to the end cap of the pressure vessel. The pressure vessel can be disassembled by pulling out the end cap connecting rod while keeping the support cross plate fixed to the inner wall of the pressure vessel.

[0005] Preferably, both ends of the support cross plate are provided with stoppers, located on the side of the support cross plate proximal to the pressure vessel end cap. The stoppers prevent the support cross plate from sliding during operation, ensuring coaxiality between the axis of the end cap connecting rod and the connection portion of the pressure vessel end cap, thereby preventing stress damage to the connection portion of the pressure vessel end cap.

[0006] Preferably, the limiting component cooperates with the inner wall of the pressure vessel where the pressure vessel end cap is located. The limiting component cooperates with the inner wall of the pressure vessel to clamp the supporting cross plate at the maximum inner diameter of the inner wall of the pressure vessel, preventing the supporting cross plate from moving. The fixing method of clamping and fixing the maximum inner diameter of the pressure vessel from the inside is simple; the pressure vessel will not be deformed inwardly under pressure, ensuring that the pressure vessel end cap can be pulled out smoothly; the coaxiality of the axis of the center hole and the axis of the pressure vessel is ensured, and the coaxiality of the end cap connecting rod with the pressure vessel during the pulling process is ensured, thereby preventing the pressure vessel end cap from wearing against the inner wall of the pressure vessel.

[0007] Preferably, the connecting end of the end cap connecting rod is provided with an external thread. The pressure vessel end cap includes a pressure vessel end cap with an internally threaded connecting portion. The connecting end of the end cap connecting rod is fixed with an external thread, which is convenient for pulling out the pressure vessel end cap when removing the pressure vessel end cap.

[0008] Preferably, a female thread reducer is provided at the connecting end of the end cap connecting rod, one end of the female thread reducer being connected to the connecting end of the end cap connecting rod, and the other end of the female thread reducer being connected to the pressure vessel end cap. The pressure vessel end cap includes a pressure vessel end cap having an externally threaded connection portion. The female thread reducer is sleeved on the connecting end of the end cap connecting rod, thereby enabling the same end cap connecting rod to connect different types of pressure vessel end caps and enabling the removal of different types of pressure vessel end caps.

[0009] Preferably, a limiting section is provided between the connecting end and the rotating end of the end cap connecting rod, so as to prevent the end cap connecting rod from being screwed too deeply into the connecting end and damaging the thread of the connecting portion of the pressure vessel end cap when being screwed into the connecting end.

[0010] Preferably, the rotary handle is provided with a transmission hole, which is sleeved on the rotating end of the end cover connecting rod. Rotating the rotary handle connects the end cover connecting rod to the end cover of the pressure vessel, thereby facilitating the pulling out of the end cover connecting rod and the removal of the end cover of the pressure vessel.

[0011] The utility model has the following beneficial effects: the waist-shaped hole is matched with the end cover connecting rod, and when the end cover connecting rod is pulled out of the pressure vessel end cover, the coaxiality of the end cover connecting rod and the inner wall of the pressure vessel is avoided, and stress damage is caused to the connection part of the pressure vessel end cover; when the end cover connecting rod is pulled out, wear between the thread of the rotating end of the end cover connecting rod and the supporting cross plate and the center hole is avoided; the limiting component is matched with the inner wall of the pressure vessel to ensure the coaxiality of the axis of the center hole and the axis of the pressure vessel; the connecting end of the end cover connecting rod can be optionally connected with an internal thread reducer to realize the connection of the same end cover connecting rod to different types of pressure vessel end covers, and the disassembly of different types of pressure vessel end covers is realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural diagram of the utility model;

[0013] Figure 2 This is another structural schematic diagram of the utility model;

[0014] Figure 3 This is a front view structural diagram of the working state of the utility model;

[0015] Figure 4 This is a front view structural diagram of the working state of the reducer with an internal thread of the utility model;

[0016] Figure 5 This is a side structural diagram of the present utility model;

[0017] Figure 6 This is a schematic structural diagram of the supporting horizontal plate of the utility model;

[0018] Figure 7 It is a structural schematic diagram of the end cover connecting rod of the utility model.

[0019] Explanation of reference numerals: 1 rotating handle; 2 end cover connecting rod; 21 connecting end; 22 limiting section; 23 rotating end; 3 pressure vessel end cover; 4 supporting cross plate; 5 pressure vessel; 6 internal thread reducer; 7 limiting component. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] Example 1

[0022] Combine Figure 1 、 Figure 2 and Figure 3As shown, a tool for removing the end cover 3 of a reverse osmosis pressure vessel includes a supporting cross plate, an end cover connecting rod 2 and a rotating handle 1. The end cover connecting rod 2 passes through the supporting cross plate. The through hole of the supporting cross plate through which the end cover connecting rod 2 passes is a center hole, and the center hole is a waist-shaped hole. The cross-section of the rotating end 23 of the end cover connecting rod 2 is a waist-drum shape, and the cross-sectional shape of the rotating end 23 matches the shape of the center hole.

[0023] Through the above-mentioned arrangement, the waist-shaped hole is matched with the end cover connecting rod 2. When the end cover connecting rod 2 is pulled out of the pressure vessel end cover 3, the force direction of the end cover connecting rod 2 is prevented from having an angle with the inner wall of the pressure vessel 5 when the end cover connecting rod 2 is pulled out, causing stress damage to the connection part of the pressure vessel end cover 3; and when the end cover connecting rod 2 is pulled out, wear is avoided between the thread of the rotating end 23 of the end cover connecting rod 2 and the supporting cross plate and the center hole.

[0024] Combine Figure 3 、 Figure 4 and Figure 7 As shown, one end of the end cap connecting rod 2 is a connecting end 21, which is connected to the pressure vessel end cap 3. The other end of the end cap connecting rod 2 is a rotating end 23, which is provided with a rotating handle 1. Rotating the handle 1 rotates the end cap connecting rod 2, so that the connecting end 21 of the end cap connecting rod 2 is fixed to the pressure vessel end cap 3. Keeping the supporting cross plate fixed to the inner wall of the pressure vessel 5, the end cap connecting rod 2 is pulled out to complete the removal of the pressure vessel 5.

[0025] Combine Figure 3 、 Figure 4 and Figure 6 As shown, both ends of the support cross plate are provided with limiting components 7, which are located on the side of the support cross plate close to the pressure vessel end cover 3. The limiting components 7 can prevent the support cross plate from sliding during operation, and the fixing method of clamping and fixing the maximum inner diameter of the pressure vessel 5 from the inside is simple; the pressure vessel 5 will not deform inward under pressure, ensuring that the pressure vessel end cover 3 can be pulled out smoothly; the coaxiality of the axis of the end cover connecting rod 2 and the connection part of the pressure vessel end cover 3 is guaranteed, avoiding stress damage to the connection part of the pressure vessel end cover 3; and the coaxiality of the end cover connecting rod 2 with the pressure vessel 5 during the pulling process is guaranteed, avoiding wear between the pressure vessel end cover 3 and the inner wall of the pressure vessel 5.

[0026] Combine Figure 4 and Figure 6 As shown, the limiting component 7 cooperates with the inner wall of the pressure vessel 5 where the pressure vessel end cover 3 is located. The limiting component 7 cooperates with the inner wall of the pressure vessel 5 to clamp the supporting cross plate at the maximum inner diameter of the inner wall of the pressure vessel 5, preventing the supporting cross plate from moving and ensuring the coaxiality of the axis of the center hole and the axis of the pressure vessel 5.

[0027] like Figure 7As shown, the connecting end 21 of the end cap connecting rod 2 is provided with an external thread. In this embodiment, the connecting end 21 of the end cap connecting rod 2 adopts a 1-inch external thread. The pressure vessel end cap 3 includes a pressure vessel end cap 3 having an internally threaded connection portion. The connecting end 21 of the end cap connecting rod 2 is fixed with an external thread, which facilitates pulling out the pressure vessel end cap 3 when removing the pressure vessel end cap 3.

[0028] like Figure 7 As shown, a limiting section 22 is provided between the connecting end 21 and the rotating end 23 of the end cap connecting rod 2. The limiting section 22 prevents the end cap connecting rod 2 from being screwed too deeply into the connecting end 21 when being screwed into the pressure vessel end cap 3, thereby damaging the thread of the connecting portion of the pressure vessel end cap 3.

[0029] Combine Figure 3 and Figure 4 As shown, the rotary handle 1 is provided with a transmission hole, which is sleeved on the rotating end 23 of the end cover connecting rod 2. Rotating the rotary handle 1 connects the end cover connecting rod 2 to the pressure vessel end cover 3, and the connection between the rotary handle 1 and the end cover connecting rod 2 is completed, making it easy to pull out the end cover connecting rod 2 and remove the pressure vessel end cover 3.

[0030] Example 2

[0031] The difference from the first embodiment is that in order to realize the connection of the same end cover connecting rod 2 to different types of pressure vessel end covers 3, the end covers 3 of different types of pressure vessels can be disassembled. Figure 5 As shown, the connection end 21 of the end cap connecting rod 2 is provided with an internal thread reducer 6. One end of the internal thread reducer 6 is connected to the connection end 21 of the connecting rod 2, and the other end of the internal thread reducer 6 is connected to the pressure vessel end cap 3. The pressure vessel end cap 3 includes a pressure vessel end cap 3 with an externally threaded connection portion. The internal thread reducer 6 is sleeved on the connection end 21 of the end cap connecting rod 2. In this embodiment, the internal thread reducer 6 is a 1.5-inch internal thread and a 1-inch external thread that can be converted between each other.

[0032] The use steps of the present invention and the working movement process of the main components are as follows: Process 1, the supporting cross plate 4 and the rotating handle 1 are sequentially sleeved and screwed into the rotating end 21 of the end cover connecting rod 2; Process 2, the aforementioned assembly is installed into the pressure vessel 5 where the pressure vessel end cover 3 is located, the limiting component 7 cooperates with the inner wall of the pressure vessel 5, and the connecting end 23 of the end cover connecting rod 2 contacts the pressure vessel end cover 3; Process 3, screwing the rotating handle 1, keeping the axial position of the rotating handle 1 and the pressure vessel 5 unchanged, relatively, under the action of the thread at the rotating end 23, the end cover connecting rod 2 will move axially inward; Process 4, in process 3 At the same time, since there is also a thread at the connecting end 21, the end cover connecting rod 2 and the pressure vessel end cover 3 will be connected. In process 5, at the same time as processes 3 and 4, the connecting hole between the supporting cross plate 4 and the end cover connecting rod 2 is a waist drum hole, and the supporting cross plate 4 rotates with the end cover connecting rod 2, but the axial position of the supporting cross plate 4 with the pressure vessel 5 remains unchanged; in process 6, after the end cover connecting rod 2 and the pressure vessel end cover 3 are connected, the end cover connecting rod 2 is pulled out and the pressure vessel end cover 3 is pulled out at the same time; in process 7, the connecting hole between the supporting cross plate 4 and the end cover connecting rod 2 is a waist drum hole, which keeps the axial position of the supporting cross plate 4 and the pressure vessel 5 unchanged.

[0033] The utility model has the following beneficial effects: the waist-shaped hole is matched with the end cover connecting rod 2, and when the end cover connecting rod 2 is pulled out of the pressure vessel end cover 3, the coaxiality of the end cover connecting rod 2 and the inner wall of the pressure vessel 5 is avoided, and stress damage is caused to the connection part of the pressure vessel end cover 3; when the end cover connecting rod 2 is pulled out, wear between the thread of the rotating end 23 of the end cover connecting rod 2 and the supporting cross plate and the center hole is avoided; the limiting component 7 is matched with the inner wall of the pressure vessel 5 to ensure the coaxiality of the axis of the center hole and the axis of the pressure vessel 5; the connecting end 21 of the end cover connecting rod 2 can be optionally connected with an internal thread reducer 6, so that the same end cover connecting rod 2 can be connected to different types of pressure vessel end covers 3, and different types of pressure vessel end covers 3 can be disassembled.

[0034] This article uses specific examples to illustrate the principles and implementation methods of this application. The description of the above embodiments is only used to help understand the method and core ideas of this application. The above is only the preferred implementation method of this application. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of this application, they can make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without improvement, should be regarded as the scope of protection of this application.

Claims

1. A tool for removing the end cap of a reverse osmosis pressure vessel, comprising a supporting horizontal plate (4) and an end cap connecting rod (2), characterized in that: The end cover connecting rod (2) passes through the supporting transverse plate (4), the through hole of the supporting transverse plate (4) through which the end cover connecting rod (2) passes is a center hole, and the center hole is a waist-shaped hole. The cross section of the rotating end (23) of the end cover connecting rod (2) is a waist-drum shape, and the cross-sectional shape of the rotating end (23) matches the shape of the center hole.

2. A tool for removing the end cap of a reverse osmosis pressure vessel according to claim 1, characterized in that: One end of the end cover connecting rod (2) is a connecting end (21), and the connecting end (21) is connected to the pressure vessel end cover (3). The other end of the end cover connecting rod (2) is a rotating end (23), and the rotating end (23) is provided with a rotating handle (1).

3. A tool for removing the end cap of a reverse osmosis pressure vessel according to claim 2, characterized in that: Limiting components (7) are provided at both ends of the supporting transverse plate (4), and the limiting components (7) are located on a side of the supporting transverse plate (4) close to the pressure vessel end cover (3).

4. A tool for removing the end cap of a reverse osmosis pressure vessel according to claim 3, characterized in that: The limiting component (7) cooperates with the inner wall of the pressure vessel end cover where the pressure vessel end cover (3) is located.

5. The tool for removing the end cap of a reverse osmosis pressure vessel according to claim 2, characterized in that: The connecting end (21) of the end cover connecting rod (2) is provided with an external thread.

6. A tool for removing the end cap of a reverse osmosis pressure vessel according to claim 5, characterized in that: The connecting end (21) of the end cover connecting rod (2) is provided with an internal thread reducer (6), one end of the internal thread reducer (6) is connected to the connecting end (21) of the end cover connecting rod (2), and the other end of the internal thread reducer (6) is connected to the pressure vessel end cover (3).

7. A tool for removing the end cap of a reverse osmosis pressure vessel according to claim 5 or 6, characterized in that: A limiting section (22) is provided between the connecting end (21) and the rotating end (23) of the end cover connecting rod (2).

8. The tool for removing the end cap of a reverse osmosis pressure vessel according to claim 2, characterized in that: The rotating handle (1) is provided with a transmission hole, and the transmission hole is sleeved on the rotating end (23) of the end cover connecting rod (2).

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