Pressure testing tool for ball valve

Abstract

The utility model relates to a pressure testing tool of a ball valve. The pressure testing tool for the ball valves comprises fixing assemblies used for fixing the tested ball valves and a connecting assembly, and the fixing assemblies are connected through the connecting assembly so that batch testing of the ball valves can be achieved. The ball valve pressure testing device solves the problem that an existing ball valve pressure testing device is low in testing efficiency, and meanwhile the accuracy of pressure testing is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of component pressure testing, in particular to a pressure testing tool for a ball valve. Background Art

[0002] Marine low-speed engine ball valves are designed specifically for low-speed marine engines, used to control and regulate the flow of fluids. They feature a simple structure, excellent sealing performance, rapid opening and closing, and a long service life. The ball of the ball valve rotates freely within the valve body, opening and closing the valve by a 90-degree rotation. Due to their excellent sealing performance and corrosion resistance, ball valves are widely used in ship fuel, lubricating oil, cooling water, and other systems.

[0003] During the production process, ball valves need to be pressure tested to ensure product quality. However, existing ball valve pressure testing can only be performed individually or using a dedicated ball valve pressure testing machine. However, the number of ball valves that can be pressure tested is limited, resulting in low testing efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a pressure testing tool for a ball valve, so as to solve the problem of low testing efficiency of the existing ball valve pressure testing device, while ensuring the accuracy of the pressure test.

[0005] In order to achieve the above purpose, the technical solution adopted by the present utility model is as follows:

[0006] A pressure testing tool for a ball valve comprises a fixing assembly and a connecting assembly for fixing the ball valve to be tested. A plurality of the fixing assemblies are connected via the connecting assembly to achieve batch testing of the ball valves.

[0007] The above technical approach, by providing a connecting assembly to connect the fixing assembly, enables the serial connection of multiple fixing assemblies, thereby enabling batch testing of multiple ball valves and effectively improving testing efficiency. This solves the problem of low testing efficiency in existing ball valve pressure testing devices while ensuring the accuracy of pressure testing. It offers the advantages of ease of use, low cost, high reliability, and high stability.

[0008] Preferably, the fixing assembly includes a fixing base and a first fastener provided on the fixing base, and the ball valve to be tested is fixed by the fixing base and the first fastener cooperating with each other.

[0009] The test ball valve is fixed by the mutual cooperation of the fixed base and the fasteners, which ensures the stability of the test process and thus the accuracy of the test results.

[0010] Preferably, each fixed base is provided with six first fasteners, and every three first fasteners are evenly spaced along the length direction of the fixed base.

[0011] Preferably, the fixed base is provided with an oil inlet channel for communicating with the oil inlet of the ball valve under test and an oil outlet channel for communicating with the oil outlet of the ball valve under test, so as to realize pressure testing of the ball valve under test.

[0012] The above-mentioned setting mode of the fixed base can realize the pressure test of a single ball valve, and can also realize the test of multiple ball valves by cooperating with the connection component.

[0013] Preferably, the connecting assembly comprises an oil inlet joint, a sealing ball joint and a connecting pipe connected in sequence;

[0014] The oil inlet joint is connected to the oil outlet channel of one of the fixed bases, and the connecting pipe is connected to the oil inlet channel of another fixed base, so as to realize simultaneous testing of multiple ball valves.

[0015] Preferably, the connecting assembly further comprises a second fastener, which is sleeved on the connecting pipe to achieve a secure connection between the sealing ball head and the connecting pipe.

[0016] Preferably, the connecting assembly further comprises a pressing piece, and the pressing piece is sleeved on the oil inlet joint, the sealing ball head, the connecting pipe and the second fastener.

[0017] Preferably, one end of the oil inlet connector is threadedly connected to the oil outlet channel, and the other end is provided with a tapered interface;

[0018] One end of the sealing ball head is provided with a tapered joint that is tightly matched with the tapered interface.

[0019] The oil inlet joint and the fixed base are connected by threaded connection, which facilitates disassembly and assembly; by setting the other end of the oil inlet joint into a tapered interface, the oil inlet joint and the sealing joint are tapered, which effectively increases the contact area, thereby enhancing the connection stability and sealing performance.

[0020] Preferably, the other end of the sealing ball head is plug-fitted to one end of the connecting pipe;

[0021] The other end of the connecting pipe is threadedly connected to the oil inlet channel.

[0022] Preferably, a first sealing structure is provided between the oil inlet joint and the oil outlet channel.

[0023] Preferably, a second sealing structure is provided between the connecting pipe and the oil inlet channel.

[0024] Preferably, the first sealing structure and the second sealing structure are both sealing rings.

[0025] Preferably, the first fastener is a screw.

[0026] Among them, the stress on the screw can be calculated through the test pressure and the force-bearing area of ​​the ball valve, thereby calculating the safety factor of the screw, so that screws with corresponding safety factors can be selected to ensure the stability and sealing of the assembly.

[0027] Preferably, the second fastener is a nut;

[0028] Preferably, the pressing member is a pressing cap.

[0029] Beneficial effects of the utility model:

[0030] The pressure testing fixture for the ball valve of the present invention is capable of effectively connecting multiple fixed components through the careful design and configuration of connecting components. Multiple fixed components can be smoothly connected in series, so that we can perform batch tests on multiple ball valves at the same time, which greatly improves the efficiency of the testing work. At the same time, it can also ensure that the accuracy of the pressure test is significantly improved, thereby ensuring the reliability of the test results. The advantages of this pressure testing fixture include a simple and easy operation process, which greatly reduces the difficulty of operation, so that non-professionals can also get started quickly; compared with traditional testing methods, its cost is significantly reduced and the economic benefits are significant; there are very few faults or errors during the test process, which ensures the consistency and accuracy of the test results; there will be no performance degradation during long-term testing, which ensures the continuity and durability of the testing work. It has promotion and application value in the field of component pressure testing technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic structural diagram of a pressure testing tool for a ball valve of the present invention;

[0032] Figure 2 It is a structural diagram of the fixed base;

[0033] Figure 3 for Figure 2 Cross-sectional view along the middle line AA;

[0034] Figure 4 for Figure 2 Left view of;

[0035] Figure 5 It is a cross-sectional view of the oil inlet joint;

[0036] Figure 6 This is the left side view of the oil inlet connector;

[0037] Figure 7 is a cross-sectional view of the sealing ball head;

[0038] Figure 8 It is the left side view of the sealing ball head;

[0039] Figure 9 Schematic diagram of the structure of the connecting pipe;

[0040] Figure 10 It is the left view of the connecting pipe;

[0041] Figure 11 is a cross-sectional view of a fastener;

[0042] Figure 12 is a top view of the fastener;

[0043] Figure 13 is a cross-sectional view of the pressing member;

[0044] Figure 14 It is the left side view of the pressing part;

[0045] Among them, 1-fixed component, 11-fixed base, 111-oil inlet channel, 112-oil outlet channel, 113-screw mounting hole, 12-first fastener; 2-connecting component, 21-oil inlet joint, 211-conical interface, 22-sealing ball head, 221-conical joint, 23-connecting pipe, 24-second fastener, 25-pressing member; 3-first sealing structure; 4-second sealing structure; 5-screw plug. DETAILED DESCRIPTION

[0046] The following describes the embodiments of the present invention with reference to the accompanying drawings and preferred embodiments. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. The present invention may also be implemented or applied through various other specific embodiments, and the details in this specification may be modified or altered based on different perspectives and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are intended solely to illustrate the present invention and are not intended to limit the scope of protection of the present invention.

[0047] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention. Therefore, the drawings only show components related to the present invention and are not drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component can be changed at will, and the component layout type may also be more complicated. Example

[0048] like Figures 1 to 14 As shown, a pressure testing tool for a ball valve includes a fixing component 1 and a connecting component 2 for fixing the ball valve to be tested. Multiple fixing components 1 are connected through the connecting component 2 to achieve batch testing of ball valves.

[0049] By connecting the connecting assembly to the fixed assembly, multiple fixed assemblies can be connected in series, enabling batch testing of multiple ball valves and significantly improving testing efficiency. This solves the low testing efficiency issue of existing ball valve pressure testing devices while ensuring pressure test accuracy. It offers the advantages of ease of use, low cost, high reliability, and high stability.

[0050] Among them, a connecting component 2 connects two fixing components 1.

[0051] In some embodiments, in order to ensure the stability of the test process and thus the accuracy of the test results, a fixing assembly 1 is provided, including a fixing base 11 and a first fastener 12 provided on the fixing base 11. The ball valve to be tested is fixed by the cooperation between the fixing base 11 and the first fastener 12.

[0052] Exemplarily, each fixed base 11 is provided with six first fasteners 12 , and three first fasteners 12 are evenly spaced apart along the length direction of the fixed base 11 .

[0053] In some embodiments, the fixed base 11 is provided with an oil inlet channel 111 for communicating with the oil inlet of the ball valve under test and an oil outlet channel 112 for communicating with the oil outlet of the ball valve under test, thereby realizing pressure testing of the ball valve under test.

[0054] The above-mentioned setting mode of the fixed base can realize the pressure test of a single ball valve, and can also realize the test of multiple ball valves by cooperating with the connection component.

[0055] The fixed base 11 is used to place the ball valve under test. After the oil inlet of the ball valve under test is aligned with the oil inlet channel 111 and the oil outlet of the ball valve under test is aligned with the oil outlet channel 112, the four corners of the ball valve under test are tightened and fixed by adjusting the first fasteners 12. The surface of the fixed base 11 for placing the ball valve under test is smooth to ensure the sealing performance of the ball valve after clamping.

[0056] In some embodiments, the connection assembly 2 includes an oil inlet joint 21, a sealing ball joint 22, and a connection pipe 23 connected in sequence;

[0057] The oil inlet joint 21 is connected to the oil outlet channel 112 of one fixed base 11 , and the connecting pipe 23 is connected to the oil inlet channel 111 of another fixed base 11 , so as to realize simultaneous testing of multiple ball valves.

[0058] Alternatively, the oil inlet connector 21 is connected to the oil inlet channel 111 of one fixed base 11 , and the connecting pipe 23 is connected to the oil outlet channel 112 of another fixed base 11 , so as to achieve simultaneous testing of multiple ball valves.

[0059] During the test, the unused oil outlet channel 112 is sealed with a screw plug 5. After the test is completed, the screw plug 5 is removed to discharge the test oil.

[0060] In some embodiments, the connection assembly 2 further includes a second fastener 24 , which is sleeved on the connection tube 23 to achieve a secure connection between the sealing ball head 22 and the connection tube 23 .

[0061] In some embodiments, the connection assembly 2 further includes a pressing member 25 , which is sleeved on the oil inlet joint 21 , the sealing ball head 22 , the connecting pipe 23 and the second fastener 24 .

[0062] For example, in order to facilitate disassembly and assembly, one end of the oil inlet connector 21 is threadedly connected to the oil outlet channel 112, and the other end is provided with a tapered interface 211;

[0063] In order to increase the contact area and thus enhance the connection stability and sealing performance, one end of the sealing ball head 22 is provided with a tapered joint 221 that closely matches the tapered interface 211 .

[0064] In some embodiments, the other end of the sealing ball head 22 is plug-fitted to one end of the connecting tube 23;

[0065] In order to facilitate disassembly and assembly, the other end of the connecting pipe 23 is threadedly connected to the oil inlet channel 111.

[0066] In some embodiments, a first sealing structure 3 is provided between the oil inlet joint 21 and the oil outlet channel 112 .

[0067] In some embodiments, a second sealing structure 4 is provided between the connecting pipe 23 and the oil inlet channel 111 .

[0068] Exemplarily, the first sealing structure 3 and the second sealing structure 4 are both sealing rings.

[0069] For example, the first fastener 12 is a screw. The fixing base 11 is provided with a screw mounting hole 113 .

[0070] Among them, the stress on the screw can be calculated through the test pressure and the force-bearing area of ​​the ball valve, thereby calculating the safety factor of the screw, so that screws with corresponding safety factors can be selected to ensure the stability and sealing of the assembly.

[0071] Exemplarily, the second fastener 24 is a nut.

[0072] Exemplarily, the pressing member 25 is a pressing cap.

[0073] When the pressure test tool of the ball valve is actually used, the number of fixed bases 1 is first determined according to the number of ball valves to be tested, and then one end of the oil inlet joint 21 is connected to the oil outlet channel 112 of the previous fixed base 11, and the tapered interface 211 at the other end is tightly matched with the tapered joint 221 at one end of the sealing ball head 22, and the pressing piece 25 and the second fastener 24 are inserted into the small-diameter end of the connecting pipe 23 in sequence, and then the small-diameter end of the connecting pipe 23 is inserted into the other end of the sealing ball head 22, and the second fastener 24 and the pressing piece 25 are tightened in sequence, and then the connecting pipe 23 is tightened. The large-diameter end is connected to the oil inlet channel 111 of the next fixed base 11, and so on. The unused oil outlet channel 112 is sealed with a screw plug 5. Then, after the fixed base 11 is connected according to the number of ball valves to be tested, the ball valve to be tested is placed on the fixed base 11, and the oil inlet of the ball valve to be tested is aligned with the oil inlet channel 111, and the oil outlet of the ball valve to be tested is aligned with the oil outlet channel 112. The four corners of the ball valve to be tested are tightened and fixed by adjusting the first fastener 12, and then the test oil is sucked in for a pressure test. After the test is completed, the screw plug 5 is removed to discharge the test oil.

[0074] In summary, the pressure testing fixture for the ball valve of the present invention cleverly connects multiple fixed components together through the careful design and configuration of the connecting components, forming an efficient testing production line. This innovative design allows multiple ball valves to be connected in series for batch testing, significantly improving the efficiency of the testing work. This improvement effectively solves the problem of low testing efficiency in traditional ball valve pressure testing devices, while ensuring the accuracy and reliability of the pressure test. In addition, this new testing system also has multiple advantages such as easy operation, low cost, high reliability and strong stability, making it more competitive and practical in actual applications, and has promotion and application value in the field of component pressure testing technology.

[0075] The above embodiments are only preferred embodiments for fully illustrating the present invention, and the protection scope of the present invention is not limited thereto. Any equivalent substitution or modification made by those skilled in the art based on the present invention shall fall within the protection scope of the present invention.

Claims

1. A pressure test tool for a ball valve, characterized in that: It comprises a fixing assembly (1) and a connecting assembly (2) for fixing a ball valve to be tested, and a plurality of the fixing assemblies (1) are connected via the connecting assembly (2) to achieve batch testing of ball valves.

2. The pressure testing tool according to claim 1, characterized in that: The fixing assembly (1) comprises a fixing base (11) and a first fastener (12) provided on the fixing base (11), and the fixing of the ball valve to be tested is achieved by the mutual cooperation between the fixing base (11) and the first fastener (12).

3. The pressure testing tool according to claim 2, characterized in that: The fixed base (11) is provided with an oil inlet channel (111) for communicating with the oil inlet of the ball valve to be tested and an oil outlet channel (112) for communicating with the oil outlet of the ball valve to be tested, thereby achieving pressure testing of the ball valve to be tested.

4. The pressure testing tool according to claim 3, characterized in that: The connecting assembly (2) comprises an oil inlet joint (21), a sealing ball joint (22) and a connecting pipe (23) which are connected in sequence; The oil inlet joint (21) is connected to the oil outlet channel (112) of one fixed base (11), and the connecting pipe (23) is connected to the oil inlet channel (111) of another fixed base (11), so as to realize simultaneous testing of multiple ball valves.

5. The pressure testing tool according to claim 4, characterized in that: The connecting assembly (2) further comprises a second fastener (24), which is sleeved on the connecting tube (23) to achieve a secure connection between the sealing ball head (22) and the connecting tube (23).

6. The pressure testing tool according to claim 5, characterized in that: The connecting assembly (2) further comprises a pressing piece (25), wherein the pressing piece (25) is sleeved on the oil inlet joint (21), the sealing ball head (22), the connecting pipe (23) and the second fastener (24).

7. The pressure testing tool according to claim 4, characterized in that: One end of the oil inlet joint (21) is threadedly connected to the oil outlet channel (112), and the other end is provided with a tapered interface (211); One end of the sealing ball head (22) is provided with a tapered joint (221) that tightly fits the tapered interface (211).

8. The pressure testing tool according to claim 7, characterized in that: The other end of the sealing ball head (22) is plug-fitted to one end of the connecting pipe (23); The other end of the connecting pipe (23) is threadedly connected to the oil inlet channel (111).

9. The pressure testing tool according to claim 4, characterized in that: A first sealing structure (3) is provided between the oil inlet joint (21) and the oil outlet channel (112); And / or, a second sealing structure (4) is provided between the connecting pipe (23) and the oil inlet channel (111).

10. The pressure testing tool according to claim 6, characterized in that: The first fastener (12) is a screw; And / or, the second fastener (24) is a nut; And / or, the pressing member (25) is a pressing cap.

Images