Hydraulic pressure testing machine

By using the rotating engagement of the limiting protrusion and the installation mechanism, along with the sealing ring design, the problems of time-consuming and labor-intensive installation and poor sealing of traditional water pressure testing equipment are solved, achieving rapid installation, zero leakage, and meeting various testing requirements.

CN224436003UActive Publication Date: 2026-06-30CHANG ZHOU SHA PU KE JI YOU XIAN GONG SI

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANG ZHOU SHA PU KE JI YOU XIAN GONG SI
Filing Date
2025-07-15
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Traditional hydrostatic testing equipment uses bolt-fastened hatch covers, which are time-consuming and labor-intensive to install and difficult to guarantee sealing, making it impossible to simultaneously meet the high-pressure testing requirements of both internal and external connections.

Method used

The device employs a swivel locking mechanism with a limiting protrusion and a sealing ring design to replace traditional bolt fastening. It also features a locking block to lock the rotating groove, ensuring zero leakage under high pressure. The device is moved via a fuma wheel, and the hatch cover integrates water injection and pressure relief holes to support testing of internal and external connections.

Benefits of technology

It enables rapid installation, ensures zero leakage under high pressure, adapts to different testing environments, supports various testing requirements for internal and external connections of the tank, and improves testing efficiency and sealing performance.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224436003U_ABST
    Figure CN224436003U_ABST
Patent Text Reader

Abstract

This utility model relates to the field of water pressure testing, and more particularly to a water pressure testing machine, including a tank with an internal cavity. An installation mechanism is installed on the inner wall of the tank at the top of the cavity. A hatch is horizontally screwed onto the top of the tank and is used to install on the installation mechanism. Multiple installation knobs are evenly arranged in the center of the hatch, and multiple limiting protrusions are evenly arranged on the side wall of the hatch. In this utility model, the hatch engages with the installation mechanism through the limiting protrusions, replacing traditional bolt fastening, effectively reducing installation time. The addition of limiting blocks to lock the rotating groove, combined with redundant sealing design of the sealing ring, ensures zero leakage under 10 MPa high pressure. The four corner wheels of the chassis allow for free movement of the equipment, adapting to different testing environments such as workshops and laboratories. The hatch integrates a water injection hole, a pressure relief hole, and multiple installation knobs, supporting immersion testing such as valve, external connection testing, and bolt component testing, making it a multi-purpose machine.
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Description

Technical Field

[0001] This utility model relates to the field of water pressure testing technology, and in particular to a water pressure testing machine. Background Technology

[0002] Hydraulic pressure testing is a professional testing equipment that uses water, hydraulic oil, emulsion, etc., as the working medium. It is mainly used for pressure performance verification of boilers, valves, pipelines, and irregularly shaped components. The system consists of a pressurization system and a control and display system. The former realizes test pressurization and pressure holding through a liquid booster pump, while the latter integrates pressure regulation, data acquisition, and automated operation functions.

[0003] Traditional testing equipment uses bolt-fastened covers for the tanks containing the test items. Installation requires tightening dozens of bolts one by one, which is time-consuming and labor-intensive, and it is difficult to guarantee the uniformity of the seal. Existing equipment usually only supports immersion testing inside the tank and cannot simultaneously meet the high-pressure testing requirements of external connectors (such as equipment with cables). Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a water pressure testing machine.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] The water pressure testing machine includes a tank with an internal cavity. An installation mechanism is provided on the inner wall of the tank at the top of the cavity. A hatch cover is horizontally screwed onto the top of the tank and is used to install the hatch cover at the installation mechanism. Multiple installation knobs are evenly arranged in the middle of the hatch cover, and multiple limiting protrusions are evenly arranged on the side wall of the hatch cover. The limiting protrusions are used to install the hatch cover at the installation mechanism. A pressure relief hole and a water injection hole are respectively provided on both sides of the installation knobs on the hatch cover.

[0007] Furthermore, in a preferred configuration, the mounting mechanism includes multiple placement openings on the top sidewall of the cavity, the placement openings being used to insert limiting protrusions, and a rotating groove being provided below the placement openings.

[0008] In addition, a preferred structure is that the rotating groove is used to place the limiting protrusion, and limiting blocks are provided on both sides of the placement opening to lock the limiting protrusion.

[0009] In addition, a preferred structure is that the bottom of the tank is provided with a chassis, and each of the four corners of the bottom surface of the chassis is provided with a fuma wheel.

[0010] In addition, a preferred structure is that a sealing ring mounting groove is provided on the side wall of the hatch and below the limiting protrusion, the sealing ring mounting groove is used to install the sealing ring, a pressure relief screw is installed at the pressure relief hole, multiple grooves are provided on the upper surface of the hatch, and handles are symmetrically arranged on the upper surface of the hatch.

[0011] In addition, a preferred structure is that a limiting block is installed at the placement opening, the limiting block is used to lock the limiting protrusion installed at the rotating groove, and the limiting block is provided with a handle groove.

[0012] The beneficial effects of this utility model are as follows: In this utility model, the hatch cover is engaged with the installation mechanism through a limiting protrusion and a rotating snap-fit, replacing the traditional bolt fastening, effectively reducing the installation operation time. The addition of a limiting block to lock the rotating groove, combined with the redundant sealing design of the sealing ring, ensures zero leakage under 10Mpa high pressure. The four corner wheels of the chassis allow the equipment to move freely, adapting to different testing environments such as workshops and laboratories. The hatch cover integrates water injection holes, pressure relief holes, and multiple installation knobs, supporting immersion testing inside the tank, such as valve, external connection testing, and bolt component testing, making it a multi-purpose machine. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the tank body and hatch cover after disassembly.

[0014] Figure 2 This is a schematic diagram of the structure after the hatch cover and sealing ring have been disassembled.

[0015] Figure 3 This is a schematic diagram of the structure of the bottom surface of the hatch cover;

[0016] Figure 4 This is a schematic diagram of the structure of the upper surface of the hatch.

[0017] Figure 5 This is a partially enlarged structural diagram of the tank.

[0018] Figure 6 This is a schematic diagram of the installation mechanism.

[0019] In the diagram: 1 Tank body, 11 Cavity, 12 Installation mechanism, 121 Placement port, 122 Limiting block, 123 Rotating groove, 2 Chassis, 3 Fuma wheel, 4 Hatch cover, 41 Sealing ring mounting groove, 42 Limiting protrusion, 43 Installation knob, 44 Pressure relief hole, 45 Water injection hole, 46 Handle, 47 Pressure relief screw, 48 Groove, 5 Sealing ring, 6 Limiting block, 61 Handle groove. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Reference Figure 1-6The water pressure testing machine includes a tank 1, with a cavity 11 inside the tank 1. An installation mechanism 12 is provided on the inner wall of the tank 1 at the top of the cavity 11. A hatch cover 4 is horizontally screwed onto the top of the tank 1. The hatch cover 4 is used to install at the installation mechanism 12. Multiple installation knobs 43 are evenly arranged in the middle of the hatch cover 4. Multiple limiting protrusions 42 are evenly arranged on the side wall of the hatch cover 4. The limiting protrusions 42 are used to install at the installation mechanism 12. A pressure relief hole 44 and a water injection hole 45 are respectively provided on both sides of the installation knobs 43 on the hatch cover 4. The water injection hole 45 is used to connect to the water injection connector of an existing manual pressure source device.

[0022] In addition, the installation mechanism 12 includes a plurality of placement openings 121 provided on the top side wall of the cavity 11. The placement openings 121 are used to insert the limiting protrusions 42. A rotating groove 123 is provided below the placement openings 121. The rotating groove 123 is used to place the limiting protrusions 42. Limiting blocks 122 are provided on both sides of the placement openings 121. The limiting blocks 122 are used to lock the limiting protrusions 42. The limiting blocks 122 can effectively lock the limiting protrusions 42.

[0023] The tank body 1 is equipped with a chassis 2 at the bottom, and each of the four corners of the bottom surface of the chassis 2 is equipped with a fuma wheel 3, which enables the tank body 1 to move on a flat ground.

[0024] Meanwhile, a sealing ring mounting groove 41 is provided on the side wall of the hatch 4 and below the limiting protrusion 42. The sealing ring mounting groove 41 is used to install the sealing ring 5. A pressure relief screw 47 is installed at the pressure relief hole 44. Multiple grooves 48 are provided on the upper surface of the hatch 4. Handles 46 are symmetrically provided on the upper surface of the hatch 4. The handles 46 make it easy to lift the hatch 4.

[0025] Among them, a limiting block 6 is installed at the placement port 121. The limiting block 6 is used to lock the limiting protrusion 42 installed at the rotating groove 123. A handle groove 61 is provided on the limiting block 6. The limiting block 6 prevents the hatch 4 installed at the rotating groove 123 from rotating easily.

[0026] In this embodiment, when performing a water pressure test on the product, pure water is poured into the cavity 11, the product to be tested is placed in, the cover 4 is installed, the limiting protrusion 42 is aligned with the placement opening 121 and inserted into the rotating groove 123, the cover 4 is rotated by the handle 46 so that the limiting protrusion 42 rotates to below the limiting block 122, and then the limiting block 6 is placed at the placement opening 121 by the handle groove 61 to lock it in place.

[0027] By unscrewing the pressure relief screw 47, water is injected into the pressure relief hole 44 to fill the cavity 11. Then, pressure is applied through the water injection hole 45. The cavity 11 can simulate a water pressure of 10 MPa, which is equivalent to a water depth of 1000 meters. Not only can the object to be tested be placed in the tank for water pressure testing, but the hatch cover 4 also has multiple installation knobs 43 for mounting bolt-type objects to be tested, or connecting external cables to power or communicate with the object to be tested.

[0028] In this utility model, the hatch cover 4 is engaged with the mounting mechanism 12 by a limiting protrusion 42, replacing the traditional bolt fastening, effectively reducing the installation operation time. The addition of a limiting block 6 to lock the rotating groove 123, combined with the redundant sealing design of the sealing ring 5, ensures zero leakage under 10Mpa high pressure. The four corners of the chassis 2 are equipped with casters 3 to allow the equipment to move freely and adapt to different testing environments such as workshops and laboratories. The hatch cover 4 integrates a water injection hole 45, a pressure relief hole 47 and multiple mounting knobs 43, supporting immersion testing inside the tank, such as valve, external connection testing and bolt component testing, making it a multi-purpose machine.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A water pressure testing machine, comprising a tank (1), characterized in that, The tank (1) has a cavity (11) inside. An installation mechanism (12) is provided on the inner wall of the tank (1) at the top of the cavity (11). A hatch cover (4) is horizontally screwed on the top of the tank (1). The hatch cover (4) is used to install at the installation mechanism (12). Multiple installation knobs (43) are evenly arranged in the middle of the hatch cover (4). Multiple limiting protrusions (42) are evenly arranged on the side wall of the hatch cover (4). The limiting protrusions (42) are used to install at the installation mechanism (12). A pressure relief hole (44) and a water injection hole (45) are respectively provided on both sides of the installation knob (43) on the hatch cover (4).

2. The water pressure testing machine according to claim 1, characterized in that, The installation mechanism (12) includes a plurality of placement ports (121) provided on the top side wall of the cavity (11). The placement ports (121) are used to insert the limiting protrusions (42). A rotating groove (123) is provided below the placement ports (121).

3. The water pressure testing machine according to claim 2, characterized in that, The rotating groove (123) is used to place the limiting protrusion (42), and the placement opening (121) is provided with limiting blocks (122) on both sides. The limiting blocks (122) are used to hold the limiting protrusion (42).

4. The water pressure testing machine according to claim 1, characterized in that, The tank (1) is provided with a chassis (2) at the bottom, and a fuma wheel (3) is provided at each of the four corners of the bottom surface of the chassis (2).

5. The water pressure testing machine according to claim 1, characterized in that, A sealing ring mounting groove (41) is provided on the side wall of the hatch (4) and below the limiting protrusion (42). The sealing ring mounting groove (41) is used to install the sealing ring (5). A pressure relief screw (47) is installed at the pressure relief hole (44). Multiple grooves (48) are provided on the upper surface of the hatch (4). Handles (46) are symmetrically provided on the upper surface of the hatch (4).

6. The water pressure testing machine according to claim 2, characterized in that, A limiting block (6) is installed at the placement port (121). The limiting block (6) is used to lock the limiting protrusion (42) installed at the rotating groove (123). A handle groove (61) is provided on the limiting block (6).