Hydraulic device for dismounting diaphragm chamber cover nut

By using a hydraulic disassembly and assembly device for the diaphragm chamber cover nut, and utilizing components such as connecting pipes, sealing rings, and limit rings, the problem of inconvenient disassembly and assembly of the diaphragm cover nut is solved, achieving stable connection and sealing effect.

CN224544454UActive Publication Date: 2026-07-24DINGXIANG COUNTY WEIYAN FORGING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DINGXIANG COUNTY WEIYAN FORGING CO LTD
Filing Date
2025-07-11
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

In the existing technology, the diaphragm cover nut is inconvenient to install and remove, and the connection is unstable, which affects the performance of the device.

Method used

A hydraulic disassembly and assembly device for diaphragm chamber cover nuts was designed. By combining connecting pipes, sealing rings, limiting rings and reinforcing components, a hydraulic pump is used to apply pressure to the cover nut for disassembly and assembly, and the connection stability is improved by sealing gaskets and limiting blocks.

Benefits of technology

This allows for easy installation and removal of the cap nut, improving the stability and sealing of the connection and enhancing the overall performance of the device.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224544454U_ABST
    Figure CN224544454U_ABST
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Abstract

The utility model relates to a diaphragm chamber cover nut hydraulic dismounting device belongs to diaphragm chamber technical field. This diaphragm chamber cover nut hydraulic dismounting device, including cover nut main part, the top of cover nut main part is equipped with the connecting pipe, connecting mechanism can be to the hydraulic dismounting of diaphragm chamber cover nut connecting mechanism setting in one end of connecting pipe, one end of connecting pipe is elastic joint, can be clamped on cover nut main part, and the hydraulic pump can exert pressure on cover nut main part through connecting pipe, and the dismounting of cover nut main part, the sealing ring in connecting pipe is linked with connecting pipe through the duct and is linked with each other, makes connecting pipe exert pressure on sealing ring, carries out inflation, and clamps in the slot can fix connecting pipe, two limit rings have certain toughness, produce deformation when installing, and the sealing washer between cover nut main part and connecting pipe can improve the sealing property of connecting pipeline, and the hydraulic dismounting of cover nut main part is convenient.
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Description

Technical Field

[0001] This utility model relates to the field of diaphragm chamber technology, and in particular to a hydraulic disassembly and assembly device for diaphragm chamber cover nuts. Background Technology

[0002] The diaphragm chamber is the core part of the diaphragm pump, consisting of the diaphragm and the diaphragm chamber body. The diaphragm chamber body plays a supporting and sealing role, ensuring that the diaphragm can maintain good sealing performance during operation. When using the diaphragm pump, the cover nut needs to be hydraulically disassembled and assembled.

[0003] A search of the Chinese patent "A Detection Device for a Diaphragm Metering Pump Valve Chamber Bolt" (publication number CN211347334U) revealed that this patent uses a weighing sensor installed at the stress point of the bolt connection between the valve cover and the valve chamber to monitor the changes in the force on the bolt in real time. This can avoid potential safety hazards caused by the bolt and also facilitate the periodic replacement of the bolt. However, when the diaphragm cover nut is damaged, the device is not convenient for disassembling and assembling the diaphragm cover nut. The connection between the disassembly and assembly device and the diaphragm cover nut is prone to instability, making it inconvenient to disassemble and assemble the diaphragm cover nut and reducing the effectiveness of the device. Utility Model Content

[0004] Therefore, it is necessary to provide a hydraulic disassembly and assembly device for the diaphragm cover nut to address the problem of inconvenience in disassembling and assembling the diaphragm cover nut.

[0005] The device includes a cover nut body, with a connecting pipe installed at the top of the cover nut body; a connecting mechanism, which can hydraulically disassemble the diaphragm chamber cover nut, is disposed at one end of the connecting pipe; wherein, the connecting mechanism includes a sealing ring fixedly connected to one end of the inner wall of the connecting pipe, one side of the sealing ring is connected to a conduit, the other end of the conduit is connected to the connecting pipe, and a reinforcing component is provided on the outer wall of the connecting pipe.

[0006] In one embodiment, the connecting mechanism further includes two limiting rings fixedly connected to one end of the inner wall of the connecting pipe, the limiting rings being respectively disposed at both ends of the sealing ring.

[0007] In one embodiment, one end of the cap nut body has several evenly arranged grooves that engage with the sealing ring and the limiting ring.

[0008] In one embodiment, a sealing gasket is provided between the cap nut body and the connecting pipe.

[0009] In one embodiment, the reinforcement component includes a fixing block disposed on the outer wall of the connecting pipe. One end of the fixing block is fixedly connected to two connecting blocks. One side of one of the connecting blocks is rotatably connected to a fixing bolt. One end of the fixing bolt passes through the connecting block and is threadedly connected to the other fixing bolt.

[0010] In one embodiment, one end of the fixing bolt has a hexagonal groove.

[0011] In one embodiment, a limiting block is fixedly connected to the inner wall of the fixing block.

[0012] In one embodiment, a limiting groove is formed on the inner wall of the limiting block, and the limiting groove fits into the connecting pipe. Beneficial effects

[0013] The aforementioned hydraulic disassembly and assembly device for the diaphragm chamber cover nut has a flexible connector at one end of the connecting pipe, which can be snapped onto the cover nut body. The hydraulic pump can apply pressure to the cover nut body through the connecting pipe to disassemble and assemble it. The sealing ring inside the connecting pipe is connected to the connecting pipe through a conduit, so that the connecting pipe applies pressure to the sealing ring, causing it to expand and snap into the slot to fix the connecting pipe. Both limiting rings have a certain degree of toughness and deform during installation. The sealing gasket between the cover nut body and the connecting pipe can improve the sealing performance of the connecting pipe and facilitate the disassembly and assembly of the cover nut body.

[0014] 1. When the connecting pipe is disassembled from the cap nut body, the connecting pipe cooperates with the two connecting blocks through the limiting block on the outer wall. As the fixing bolt rotates, the two connecting blocks move closer to each other, which drives the fixing block to clamp and fix the connecting pipe and the cap nut body, preventing the connecting pipe from falling off during use.

[0015] 2. When the fixing block comes into contact with the connecting pipe, the limiting block on the inner wall of the fixing block can fit tightly with the connecting pipe. The limiting groove in the limiting block can prevent the fixing block from falling off. As the fixing block is clamped, the limiting block can clamp the connecting pipe and the cap nut body together, improving the connection stability of the connecting pipe. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the external structure of the present utility model; Figure 2This is a schematic diagram of the connection mechanism structure of this utility model; Figure 3 This utility model Figure 2 Enlarged view of point A in the middle; Figure 4 This is a schematic diagram of the reinforcement component structure of this utility model.

[0018] Figure label: 100. Cap nut body; 200. Connecting pipe; 300. Connecting mechanism; 310. Sealing ring; 320. Conduit; 330. Limiting ring; 340. Slot; 350. Sealing gasket; 360. Reinforcing component; 361. Fixing block; 362. Connecting block; 363. Fixing bolt; 364. Limiting block; 365. Limiting groove. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this specification are for illustrative purposes only and do not represent the only possible implementation.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0022] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0023] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this specification belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0024] The following is combined Figures 1-4 This invention describes a hydraulic disassembly and assembly device for a diaphragm chamber cover nut.

[0025] In one embodiment, a hydraulic disassembly and assembly device for a diaphragm chamber cover nut includes a cover nut body 100, with a connecting pipe 200 mounted on the top end of the cover nut body 100; a connecting mechanism 300, which is configured to hydraulically disassemble the diaphragm chamber cover nut, is disposed at one end of the connecting pipe 200; wherein, the connecting mechanism 300 includes a sealing ring 310 fixedly connected to one end of the inner wall of the connecting pipe 200, one side of the sealing ring 310 is connected to a conduit 320, the other end of the conduit 320 is connected to the connecting pipe 200, and a reinforcing component 360 is provided on the outer wall of the connecting pipe 200.

[0026] It should be noted that the diaphragm chamber is the core component of the diaphragm pump, consisting of the diaphragm and the chamber body. The inlet and outlet valves of the diaphragm pump are typically ball valves or butterfly valves. The diaphragm pump operates via a drive system composed of an electric motor, a reducer, and a crankshaft connecting rod mechanism. The electric motor provides power, which, after being reduced in speed by the reducer, drives the crankshaft connecting rod mechanism, thereby causing the diaphragm to reciprocate. The cover nut is installed at one end of the diaphragm chamber to secure it. The cover nut is a hydraulic nut, utilizing the piston thrust generated by the high-pressure oil pump pushing hydraulic oil within the nut to complete the cover's tightening. For nut removal, one end of the connecting pipe 200 is sleeved on the top of the cap nut body 100, and the other end of the connecting pipe 200 is connected to the hydraulic pump. By manually starting the hydraulic pump, pressure is applied to the cap nut body 100 through the connecting pipe 200 for disassembly and assembly. The connecting pipe 200 can be limited on the cap nut body 100 by the sealing ring 310 and two limiting rings 330, without affecting the normal use of the disassembly and assembly device. The fixing block 361 and the fixing bolt 363 are set on the outer wall of the cap nut body 100, which will not affect the disassembly and assembly of the cap nut.

[0027] like Figure 2 and Figure 3 As shown, the connecting mechanism 300 also includes two limiting rings 330 fixedly connected to one end of the inner wall of the connecting pipe 200. The limiting rings 330 are respectively disposed at both ends of the sealing ring 310. One end of the cap nut body 100 is provided with several evenly arranged slots 340 that fit into the sealing ring 310 and the limiting rings 330. A sealing gasket 350 is provided between the cap nut body 100 and the connecting pipe 200.

[0028] In this embodiment, when the connecting pipe 200 is disassembled or assembled with the cap nut, the two limiting rings 330 at one end of the inner wall of the connecting pipe 200 are fitted into the slots 340 to limit the connection of the connecting pipe 200. When pressure is applied to the cap nut body 100, the connecting pipe 200 applies pressure to the sealing ring 310 through the conduit 320 and causes the sealing ring 310 to expand and snap into one of the slots 340 and the connecting pipe 200, thereby improving the connection effect of the connecting pipe 200. The sealing gasket 350 can improve the sealing effect of the device and improve the use effect of the disassembly and assembly device.

[0029] like Figure 4 As shown, the reinforcement component 360 includes a fixing block 361 disposed on the outer wall of the connecting pipe 200. One end of the fixing block 361 is fixedly connected to two connecting blocks 362. One side of one connecting block 362 is rotatably connected to a fixing bolt 363. One end of the fixing bolt 363 passes through the connecting block 362 and is threadedly connected to the other fixing bolt 363. One end of the fixing bolt 363 is provided with a hexagonal groove. The inner wall of the fixing block 361 is fixedly connected to a limiting block 364. The inner wall of the limiting block 364 is provided with a limiting groove 365, which fits against the connecting pipe 200.

[0030] In this embodiment, the fixing block 361 is tightened by cooperating with the fixing bolt 363 through two fixing blocks 361, which can make the connecting pipe 200 and the cover nut body 100 fit tightly together. When the fixing bolt 363 is manually rotated, the fixing block 361 can be rotated by using a hexagonal wrench to engage with the hexagonal groove at one end of the fixing bolt 363. The limiting block 364 and the limiting groove 365 can improve the contact effect between the fixing block 361 and the connecting pipe 200, and improve the disassembly and assembly effect of the disassembly and assembly device on the cover nut.

[0031] Working principle: The connecting pipe 200 is sleeved on the cap nut body 100. During the installation of the connecting pipe 200, the two limiting rings 330 are squeezed and deformed, and are locked in two of the slots 340. The fixing bolt 363 is manually rotated and threaded to another fixing block 361, so that the two fixing blocks 361 are brought closer to each other, clamping the connecting pipe 200 and the cap nut body 100. The hydraulic pump is manually operated to apply pressure to the connecting pipe 200. The connecting pipe 200 gradually expands by applying pressure to the sealing ring 310 through the conduit 320, and fits into the other slot 340, which can improve the sealing performance of the connecting pipe 200. The pressure applied to the cap nut body 100 by the connecting pipe 200 can be used to disassemble and assemble the cap nut body 100.

[0032] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0033] The above-described embodiments are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A hydraulic disassembly and assembly device for a diaphragm chamber cover nut, characterized in that, include: A cap nut body (100) is provided with a connecting pipe (200) installed at its top end. The connecting mechanism (300), which allows for hydraulic disassembly of the diaphragm chamber cover nut, is located at one end of the connecting pipe (200); The connecting mechanism (300) includes a sealing ring (310) fixedly connected to one end of the inner wall of the connecting pipe (200). One side of the sealing ring (310) is connected to a conduit (320), and the other end of the conduit (320) is connected to the connecting pipe (200). The outer wall of the connecting pipe (200) is provided with a reinforcing component (360).

2. The hydraulic disassembly and assembly device for the diaphragm chamber cover nut according to claim 1, characterized in that, The connecting mechanism (300) further includes two limiting rings (330) fixedly connected to one end of the inner wall of the connecting pipe (200), and the limiting rings (330) are respectively disposed at both ends of the sealing ring (310).

3. The hydraulic disassembly and assembly device for the diaphragm chamber cover nut according to claim 1, characterized in that, The cap nut body (100) has several evenly arranged slots (340) at one end that fit into the sealing ring (310) and the limiting ring (330).

4. The hydraulic disassembly and assembly device for the diaphragm chamber cover nut according to claim 1, characterized in that, A sealing gasket (350) is provided between the cap nut body (100) and the connecting pipe (200).

5. The hydraulic disassembly and assembly device for the diaphragm chamber cover nut according to claim 1, characterized in that, The reinforcement component (360) includes a fixing block (361) disposed on the outer wall of the connecting pipe (200). One end of the fixing block (361) is fixedly connected to two connecting blocks (362). One side of one of the connecting blocks (362) is rotatably connected to a fixing bolt (363). One end of the fixing bolt (363) passes through the connecting block (362) and is threadedly connected to the other fixing bolt (363).

6. The hydraulic disassembly and assembly device for the diaphragm chamber cover nut according to claim 5, characterized in that, One end of the fixing bolt (363) has a hexagonal groove.

7. The hydraulic disassembly and assembly device for the diaphragm chamber cover nut according to claim 5, characterized in that, The inner wall of the fixed block (361) is fixedly connected to the limiting block (364).

8. The hydraulic disassembly and assembly device for the diaphragm chamber cover nut according to claim 7, characterized in that, The inner wall of the limiting block (364) is provided with a limiting groove (365), which is in contact with the connecting pipe (200).

Citation Information

Patent Citations

  • Diaphragm metering pump valve chamber bolt detection device

    CN211347334U