Thread welding ball valve

Abstract

The utility model discloses a thread welding ball valve which comprises a valve unit, and a lubricating unit is arranged on the valve unit. The valve unit comprises a valve body and two groups of threaded joints, and the two groups of threaded joints are respectively mounted on two sides of the valve body; the lubricating unit comprises an oil storage cavity and an opening and closing assembly, the oil storage cavity is formed in the top of the threaded connector, and the opening and closing assembly is arranged below the oil storage cavity and used for evenly releasing lubricating oil to reduce connection friction when the threaded connector is connected. According to the thread welding ball valve, by arranging the lubricating unit, lubricating oil in the oil storage cavity can be evenly released, friction force between threads is effectively reduced, connection is smoother, and the problems that after long-term use, a threaded connector is rusted, stuck and the like due to lack of lubrication are solved; meanwhile, the situation that lubricating oil is additionally smeared manually, and consequently smearing is uneven is avoided, the service life of the valve is prolonged, and the maintenance cost and the replacement frequency are reduced.

Description

Technical Field

[0001] This utility model relates to the field of ball valve technology, specifically to a threaded welded ball valve. Background Technology

[0002] In industrial production and fluid control, ball valves are a commonly used control element, widely applied in various pipeline systems for opening, closing, or regulating fluid flow. Threaded ball valves are a common type of ball valve, installed to pipelines via a threaded connection, offering advantages such as easy installation and reliable connection.

[0003] However, in actual use, the threaded joints of threaded welded ball valves are prone to connection difficulties due to the large friction between the threads. After long-term use, the threaded joints may rust or jam due to lack of lubrication, which increases maintenance costs and difficulty.

[0004] Current methods for lubricating threaded joints typically involve manual application. However, manual application often results in uneven lubrication, leading to problems such as rust in certain areas of the threaded joint and reducing its service life. Therefore, developing a threaded welded ball valve that can effectively solve these problems is of significant practical importance. Utility Model Content

[0005] The purpose of this utility model is to provide a threaded welded ball valve, which solves the problems of difficult connection of threaded joints in some threaded welded ball valves due to the large friction between the threads, and corrosion and jamming of the threaded joints due to lack of lubrication after long-term use, which increases maintenance costs and difficulty. In addition, the existing lubrication method for threaded joints generally adopts manual application, but manual application is prone to uneven application of lubricating oil, which can easily lead to corrosion in some areas of the threaded joint and reduce the service life of the threaded joint.

[0006] A threaded welded ball valve, comprising a valve unit, wherein the valve unit is provided with a lubrication unit;

[0007] The valve unit includes:

[0008] The valve body has a ball core rotatably connected inside it;

[0009] The threaded connector is provided in two sets, and is installed on both sides of the valve body respectively;

[0010] The lubrication unit includes:

[0011] An oil reservoir is provided at the top of the threaded joint;

[0012] An opening and closing assembly is arranged below the oil storage cavity, and is used to uniformly release the lubricating oil to reduce the connection friction when the threaded joint is connected.

[0013] Preferably, the valve unit further comprises:

[0014] A valve cover is fixedly connected to the top of the valve body.

[0015] A valve rod is fixedly connected to the bottom end of the ball core and rotationally connected in the valve body.

[0016] A rotating piece is sleeved to the top of the valve rod.

[0017] Preferably, the top of the oil storage cavity is provided with a cover plate.

[0018] Preferably, the opening and closing assembly comprises:

[0019] A lifting block is slidingly connected to the bottom of the oil storage cavity.

[0020] A sliding rod is fixedly connected to the bottom of the lifting block.

[0021] Two groups of springs are arranged on both sides of the sliding rod.

[0022] Preferably, an oil delivery groove is formed in the sliding rod, and is used to drop the lubricating oil in the oil storage cavity into the threaded joint.

[0023] Preferably, a sliding block is fixedly connected to both sides of the sliding rod and slidingly connected in the threaded joint.

[0024] Preferably, the sliding block is fixedly connected to the bottom end of the spring, and the other end of the spring is fixedly connected in the threaded joint.

[0025] Compared with the prior art, the valve has the advantages that:

[0026] The threaded welded ball valve is provided with the lubricating unit, so that when the threaded joint is connected with the pipeline, the pipeline can extrude the sliding rod to move upward, the lifting block can be lifted, the lubricating oil in the oil storage cavity can be uniformly released and dropped into the threaded joint through the oil delivery groove on the sliding rod, the friction between the threads is effectively reduced, the connection is smoother, the threaded joint after long-term use is prevented from being corroded and stuck due to lack of lubrication, the uneven application of the lubricating oil by manual operation is avoided, the service life of the valve is prolonged, and the maintenance cost and replacement frequency are reduced. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical schemes in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced. Obviously, the accompanying drawings in the following description only represent some of the embodiments of the present application, and other accompanying drawings can be obtained by those skilled in the art without any creative effort on the premise that the accompanying drawings are not creative.

[0028] Figure 1 It is a structural schematic diagram of the present application;

[0029] Figure 2 It is a structural schematic diagram of the valve unit of the present application;

[0030] Figure 3 It is a front sectional view of the lubricating unit of the present application;

[0031] Figure 4 It is a structural schematic diagram of A part of the lubricating unit of the present application;

[0032] Figure 5 It is a side sectional view of the lubricating unit of the present application;

[0033] Figure 6 It is a structural schematic diagram of B part of the lubricating unit of the present application.

[0034] In the figure: 1, valve unit; 11, valve body; 12, threaded joint; 13, valve cover; 14, valve rod; 15, rotating part; 2, lubricating unit; 21, oil storage cavity; 211, cover plate; 22, opening and closing assembly; 221, lifting block; 222, sliding rod; 2221, oil delivery groove; 2222, sliding block; 223, spring. DETAILED DESCRIPTION

[0035] The technical schemes in the embodiments of the present application will be clearly and completely described below in combination with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments only represent some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without any creative effort belong to the scope of protection of the present application.

[0036] Please refer to Figures 1-6 The present application provides a technical scheme:

[0037] Embodiment one

[0038] The threaded welded ball valve comprises a valve unit 1, and the valve unit 1 is provided with a lubricating unit 2;

[0039] The valve unit 1 comprises:

[0040] A valve body 11, a ball core is rotatably connected in the valve body 11;

[0041] Threaded joints 12, the threaded joints 12 are provided in two groups and are respectively installed on both sides of the valve body 11;

[0042] The lubricating unit 2 comprises:

[0043] An oil storage cavity 21 is arranged at the top of the threaded joint 12;

[0044] An opening and closing assembly 22 is arranged below the oil storage cavity 21, and the opening and closing assembly 22 is used to uniformly release lubricating oil when the threaded joint 12 is connected to reduce connection friction.

[0045] Further, the valve unit 1 further comprises:

[0046] A valve cover 13 is fixedly connected to the top of the valve body 11;

[0047] A valve rod 14, the bottom end of the valve rod 14 is fixedly connected with the ball core, and the valve rod 14 is rotatably connected in the valve body 11;

[0048] A rotating piece 15, one end of the rotating piece 15 is sleeved on the top of the valve rod 14.

[0049] Embodiment two

[0050] The threaded welded ball valve comprises a valve unit 1, and the valve unit 1 is provided with a lubricating unit 2;

[0051] The valve unit 1 comprises:

[0052] A valve body 11, a ball core is rotatably connected in the valve body 11;

[0053] Threaded joints 12, the threaded joints 12 are provided in two groups and are respectively installed on both sides of the valve body 11;

[0054] The lubricating unit 2 comprises:

[0055] An oil storage cavity 21 is arranged at the top of the threaded joint 12, lubricating oil is stored in the oil storage cavity 21, and the capacity of the lubricating oil in the oil storage cavity 21 can be used for the connection of the threaded joint 12 and the pipeline only once, and additional lubricating oil needs to be added for the next disassembly;

[0056] An opening and closing assembly 22 is arranged below the oil storage cavity 21, and the opening and closing assembly 22 is used to uniformly release lubricating oil when the threaded joint 12 is connected to reduce connection friction.

[0057] Further, a cover plate 211 is arranged at the top of the oil storage cavity 21, so that the cover plate 211 can be opened to refill the lubricating oil when the threaded joint 12 is disassembled from the pipeline, thereby facilitating the assembly and disassembly of the threaded joint 12 and the pipeline.

[0058] Further, the opening and closing assembly 22 comprises:

[0059] The lifting block 221 is slidingly connected to the bottom of the oil storage cavity 21.

[0060] The sliding rod 222 is fixedly connected to the bottom of the lifting block 221.

[0061] The spring 223 is provided in two groups and is located on both sides of the sliding rod 222. When the threaded joint 12 is not connected, the lifting block 221 in the lubricating unit 2 is in the initial position at the bottom of the oil storage cavity 21 under the action of the spring 223, the lifting block 221 is completely sealed with the bottom of the oil storage cavity 21, and the lubricating oil in the oil storage cavity 21 cannot flow out.

[0062] Further, the sliding rod 222 is provided with an oil delivery groove 2221, and the oil delivery groove 2221 is used for dripping the lubricating oil in the oil storage cavity 21 into the threaded joint 12.

[0063] Further, the sliding rod 222 is provided with a sliding block 2222, and the sliding block 2222 is slidingly connected in the threaded joint 12.

[0064] Further, the sliding block 2222 is fixedly connected with the bottom end of the spring 223, and the other end of the spring 223 is fixedly connected in the threaded joint 12. When the threaded joint 12 is connected with the pipeline, the pipeline can extrude the sliding rod 222 to move upward, so that the lifting block 221 can be lifted, and at the same time, the spring 223 is extruded, the lubricating oil in the oil storage cavity 21 can be uniformly released, and dripped into the threaded joint 12 along the oil delivery groove 2221 on the sliding rod 222, effectively reducing the friction between the threads, making the connection more smooth, and avoiding the problems of rusting, jamming and the like of the threaded joint 12 after long-term use due to lack of lubrication, and also avoiding the uneven smearing caused by artificial additional smearing of lubricating oil, prolonging the service life of the valve, reducing the maintenance cost and replacement frequency.

[0065] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principle of the utility model, and various changes and improvements can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A threaded welded ball valve, comprising a valve unit (1), characterized in that: The valve unit (1) is equipped with a lubrication unit (2); The valve unit (1) includes: Valve body (11), wherein a ball core is rotatably connected inside the valve body (11); Threaded connector (12), the threaded connector (12) is configured in two sets and is respectively installed on both sides of the valve body (11); The lubrication unit (2) includes: An oil storage chamber (21) is provided at the top of the threaded joint (12); An opening and closing assembly (22) is provided below the oil storage chamber (21). The opening and closing assembly (22) is used to uniformly release lubricating oil to reduce connection friction when the threaded joint (12) is connected.

2. The threaded welded ball valve as described in claim 1, characterized in that: The valve unit (1) also includes: Valve cover (13), which is fixedly connected to the top of valve body (11); Valve stem (14), the bottom end of which is fixedly connected to the ball core, and the valve stem (14) is rotatably connected inside the valve body (11); A rotating component (15), one end of which is sleeved on the top of the valve stem (14).

3. The threaded welded ball valve as described in claim 2, characterized in that: The top of the oil storage chamber (21) is provided with a cover plate (211).

4. The threaded welded ball valve as described in claim 1, characterized in that: The opening / closing component (22) includes: A lifting block (221) is slidably connected to the bottom of the oil storage chamber (21); A sliding rod (222) is fixedly connected to the bottom of the lifting block (221); Spring (223), the spring (223) is configured in two sets and is located on both sides of the sliding rod (222).

5. The threaded welded ball valve as described in claim 4, characterized in that: The sliding rod (222) is provided with an oil delivery groove (2221), which is used to drip the lubricating oil in the oil storage chamber (21) into the threaded joint (12).

6. The threaded welded ball valve as described in claim 4, characterized in that: The sliding rod (222) has sliders (2222) fixedly connected to both sides, and the sliders (2222) are slidably connected inside the threaded joint (12).

7. The threaded welded ball valve as described in claim 6, characterized in that: The slider (2222) is fixedly connected to the bottom end of the spring (223), and the other end of the spring (223) is fixedly connected to the threaded joint (12).

Images