Clamping and pressing type threaded conversion connector and thin-wall clamping and pressing type ball valve

Abstract

The utility model provides a press-fit threaded adapter and a thin-wall press-fit ball valve, which comprise a main body, a connecting part and a clamping part, the connecting part and the clamping part are respectively arranged at two ends of the main body, threads are arranged on the inner ring or the periphery of the connecting part, the connecting part is in threaded connection to a first component, and the main body is connected to the periphery of a second component through the clamping part. And the main body, the connecting part and the clamping part are of an integrated structure. According to the clamping and pressing type threaded adapter and the thin-wall clamping and pressing type ball valve, the main body, the clamping and connecting part and the valve can be connected into a whole through the connecting part, the second part is the pipeline, the pipeline is connected into the main body and the clamping and connecting part in an inserted connection mode, and in order to improve the connecting strength of the clamping and connecting part and the pipeline, the clamping and connecting part is connected into a whole. The periphery of the clamping part can be extruded to the periphery of the pipeline in a deformation mode by extruding the periphery of the clamping part, so that the use working condition is met, the adapter is convenient to install and high in connection strength, the pipeline and a valve do not need to be rotated, and the requirement for series connection of pipelines is met.

Description

Technical Field

[0001] The utility model belongs to the field of pipe connection, and particularly relates to a press-type thread conversion joint and a thin-wall press-type ball valve. Background Technique

[0002] The working principle of the press-type pipe fitting is to insert a thin-wall stainless steel pipe into the socket of the press-type pipe fitting, and use a special press tool to clamp the stainless steel pipe in the pipe fitting. The cross-sectional shape of the clamped part is non-circular, and there is an annular seal between the stainless steel pipe and the pipe fitting, so that it has the characteristics of anti-leakage, anti-pull-out, anti-vibration and high pressure resistance. Therefore, it is a relatively advanced connecting piece in the direct drinking water system, tap water system, heating system, steam system, industrial oil pipe system and industrial gas pipe system, and is suitable for connecting water, oil, gas and other pipelines.

[0003] In the application in the valve field, it is necessary to set a thread on the end of the press-type pipe fitting to facilitate the connection between the press-type pipe fitting and the valve. At the same time, it is necessary to arrange a pre-shaped structure at the other end of the press-type pipe fitting. To achieve consistent structural strength and stress deformation, press-type pipe fittings for valves are usually produced by integral machining. Content of the Utility Model

[0004] In view of this, the purpose of the present utility model is to propose a press-type thread conversion joint to solve the problem that it is inconvenient to connect between the existing valve and the pipeline in a relative state.

[0005] To achieve the above object, the technical solution of the present utility model is realized as follows:

[0006] A press-type thread conversion joint includes a main body, a connecting part and a clamping part respectively arranged at both ends thereof, and a thread is provided on the inner circle or periphery of the connecting part. The connecting part is threadedly connected to the first component, and the main body is connected to the periphery of the second component through the clamping part, and the main body, the connecting part and the clamping part are of an integral structure.

[0007] Further, the periphery of the connecting part is a polygonal structure.

[0008] Further, the main body is a hollow tube structure, the second component is a pipeline, the periphery of the pipeline is located inside the inner circle of the main body, and the inner circle of the clamping part can be pressed against the periphery of the pipeline.

[0009] Further, the clamping part is a hollow tube structure, and the cross-section of the side wall of the clamping part is an arc structure.

[0010] Further, a first sealing gasket is sleeved on the inner circle of the clamping part.

[0011] Further, the material of the first sealing gasket is an O-shaped sealing rubber ring.

[0012] Compared with the prior art, the press-fit type thread conversion joint of the present utility model has the following beneficial effects: Through the connecting part, the main body, the clamping part and the valve can be connected into one body. The second component is a pipeline, which is connected to the main body and the clamping part by means of insertion. In order to improve the connection strength between the clamping part and the pipeline, the periphery of the clamping part can be extruded, so that the deformed clamping part is extruded to the periphery of the pipeline to meet the usage conditions. This conversion joint is easy to install and has high connection strength, without rotating the pipeline and the valve, meeting the requirements of connecting pipelines in series.

[0013] Another object of the present utility model is to provide a thin-wall press-fit type ball valve to solve the problem that it is difficult to install and maintain the valve when the upstream and downstream pipelines are both fixed in the prior art.

[0014] To achieve the above object, the technical solution of the present utility model is realized as follows:

[0015] A thin-wall press-fit type ball valve includes a valve body, a valve ball is arranged in the valve body, a valve rod is rotatably connected to the valve body, one end of the valve rod is fixedly connected to the periphery of the valve ball, and the periphery of the valve rod is hermetically connected to the valve body through a second sealing gasket. A handle is arranged at the other end of the valve rod. Two ends of the valve body are respectively detachably connected with one of the above-mentioned press-fit type thread conversion joints, and one ends of the upstream pipeline and the downstream pipeline are respectively connected to the inner rings of the press-fit type thread conversion joints.

[0016] Further, an installation groove is arranged in the inner ring at one end of each press-fit type thread conversion joint, a third sealing gasket is arranged in the installation groove, and the periphery of the valve ball can be attached to one end of the third sealing gasket.

[0017] Further, the materials of the second sealing gasket and the third sealing gasket are both rubber or PTFE plastic.

[0018] Compared with the prior art, the thin-wall press-fit type ball valve of the present utility model has the following advantages: A press-fit type thread conversion joint is arranged at each end of the ball valve. When the upstream pipeline and the downstream pipeline are not easy to rotate, the ball valve can be disassembled and maintained, and the operation is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings forming a part of the present utility model are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0020] Figure 1 It is a side view schematic diagram of the round steel according to the embodiment of the present utility model;

[0021] Figure 2 It is a side view schematic diagram of the connecting part turned out at the end of the round steel according to the embodiment of the present utility model;

[0022] Figure 3 The side view schematic diagram of a clamping type thread conversion joint according to an embodiment of the present utility model;

[0023] Figure 4 The structural schematic diagram of a thin-wall clamping type ball valve according to an embodiment of the present utility model;

[0024] Figure 5 The exploded structural schematic diagram of a thin-wall clamping type ball valve according to an embodiment of the present utility model;

[0025] Figure 6 The sectional structural schematic diagram of a thin-wall clamping type ball valve according to an embodiment of the present utility model.

[0026] Explanation of reference numerals:

[0027] 1 - Main body; 2 - Connecting part; 3 - Clamping part; 4 - First sealing gasket; 5 - Round steel; 100 - Valve body; 200 - Valve ball; 300 - Valve stem; 400 - Second sealing gasket; 500 - Handle; 600 - Third sealing gasket. Specific embodiments

[0028] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments may be combined with each other.

[0029] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.

[0030] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0031] The present utility model will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0032] As Figure 3 shown, a press-fit threaded adapter includes a main body 1 and a connecting portion 2 and a clamping portion 3 respectively provided at both ends thereof. The inner circle or periphery of the connecting portion 2 is provided with threads. The connecting portion 2 is threadedly connected to a first component. The main body 1 is connected to the periphery of a second component through the clamping portion 3. The main body 1, the connecting portion 2, and the clamping portion 3 are of an integral structure. In implementation, the first component is a valve. Through the connecting portion 2, the main body 1, the clamping portion 3, and the valve can be connected into one body. The second component is a pipeline. The pipeline is connected to the inside of the main body 1 and the clamping portion 3 by means of insertion. In order to improve the connection strength between the clamping portion 3 and the pipeline, the periphery of the clamping portion 3 can be extruded so that the clamping portion 3 deforms and is extruded onto the periphery of the pipeline to meet the usage conditions. This adapter is easy to install and has high connection strength, and there is no need to rotate the pipeline and the valve, meeting the requirements of connecting pipelines in series.

[0033] As Figure 3 shown, the periphery of the connecting portion 2 is a polygonal structure to facilitate the rotation of the connecting portion 2 and facilitate the staff to fasten the connecting portion 2 to the valve. The main body 1 is a hollow tube structure. The periphery of the pipeline is located inside the inner circle of the main body 1. The inner circle of the clamping portion 3 can be pressed against the periphery of the pipeline. The clamping portion 3 is a hollow tube structure, and the cross-section of the side wall of the clamping portion 3 is an arc structure. When connecting the pipeline, the staff extrudes the periphery of the arc structure to cause the deformation of the clamping portion 3 to meet the requirements of connecting the clamping portion 3 to the pipeline. In order to improve the sealing performance of this part, a first sealing gasket 4 is sleeved inside the clamping portion 3, and the material of the first sealing gasket 4 in this embodiment is an O-shaped sealing rubber ring.

[0034] As Figures 1-3 shown, a manufacturing method of a press-fit threaded adapter is to turn the outer contour of one end of a round steel 5 into a polygonal structure to form the connecting portion 2, turn an internal thread or an external thread at the end of the round steel 5 close to the connecting portion 2, or weld a connecting nut to one end of the round steel 5 by welding to form the connecting portion 2;

[0035] The other end of the round steel 5 is extruded by a linear drive module, and a clamping portion 3 is formed by concaving the end of the round steel 5 through extrusion. The forming of the clamping portion 3 is achieved by extrusion, which reduces the production cost and production time. The forming method of the clamping portion 3 does not require a welding process and adopts mechanical precision machining and hydraulic integral forming, avoiding the adverse factors such as air holes, welding leakage, and uneven compressive capacity generated during welding.

[0036] During implementation, the linear drive module can be any one of a hydraulic cylinder, a linear motor, or a lead screw module, and can be adjusted by the staff according to the actual production conditions. In this implementation, a hydraulic device in the form of a hydraulic cylinder is used for extrusion forming.

[0037] As Figures 4-6 shown, a thin-walled crimp-type ball valve includes a valve body 100, a valve ball 200 is arranged inside the valve body 100, a valve stem 300 is rotatably connected to the valve body 100, one end of the valve stem 300 is fixedly connected to the periphery of the valve ball 200, and the periphery of the valve stem 300 is hermetically connected to the inside of the valve body 100 through a second sealing gasket 400. A handle 500 is arranged at the other end of the valve stem 300. One end of each of the two ends of the valve body 100 is detachably connected to one of the above-mentioned crimp-type thread adapters, and the outer periphery of one end of the upstream pipeline and the downstream pipeline is respectively connected to the inner ring of the crimp-type thread adapter. A crimp-type thread adapter is arranged at each of the two ends of the ball valve. In the case where the upstream pipeline and the downstream pipeline are inconvenient to rotate, the ball valve can be disassembled and maintained, and the operation is simple and convenient.

[0038] An installation groove is provided in the inner ring of one end of each crimp-type thread adapter, and a third sealing gasket 600 is arranged in the installation groove. The periphery of the valve ball 200 can be attached to one end of the third sealing gasket 600 to ensure the sealing of this part. In this embodiment, the materials of the second sealing gasket 400 and the third sealing gasket 600 are both rubber or PTFE plastic.

[0039] In this embodiment, the valve body 100 is made by casting process, and the material is carbon steel and stainless steel. The crimp-type thread adapter is made of precision round steel 5, and is processed by numerical control precision machining and formed by extrusion in a hydraulic device. Compared with the conventional copper crimp ball valve, this ball valve has high tensile resistance and pressure resistance, and with cast iron and precision steel as the main body 1, it has high compressive capacity itself. At the same time, it also solves the incompatibility between the copper ball valve and the steel pipeline, and increases the service life of the pipeline system.

[0040] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A press-fit threaded adapter, characterized in that: It includes a main body (1), a connecting part (2) and a clamping part (3) respectively arranged at both ends thereof. The inner circle or periphery of the connecting part (2) is provided with a thread, the connecting part (2) is threadedly connected to a first component, the main body (1) is connected to the periphery of a second component through the clamping part (3), and the main body (1), the connecting part (2) and the clamping part (3) are of an integral structure.

2. The compression type thread conversion joint according to claim 1, characterized in that: The periphery of the connecting part (2) is of a polygonal structure.

3. The press-fit type screw thread adapter according to claim 1, characterized in that: The main body (1) is of a hollow tube structure, the second component is a pipeline, the periphery of the pipeline is located within the inner circle of the main body (1), and the inner circle of the clamping part (3) can be pressed against the periphery of the pipeline.

4. The press-fit type thread conversion joint according to claim 1, characterized in that: The clamping part (3) is of a hollow tube structure, and the cross-section of the side wall of the clamping part (3) is of an arc structure.

5. A press-fit type thread conversion joint according to claim 1, characterized in that: A first sealing gasket (4) is sleeved on the inner circle of the clamping part (3).

6. A thin-walled press-fit ball valve, comprising a valve body (100), a valve ball (200) is arranged inside the valve body (100), a valve rod (300) is rotatably connected to the valve body (100), one end of the valve rod (300) is fixedly connected to the periphery of the valve ball (200), and the periphery of the valve rod (300) is hermetically connected to the inside of the valve body (100) through a second sealing gasket (400), a handle (500) is arranged at the other end of the valve rod (300), and it is characterized in that: Both ends of a valve body (100) are respectively detachably connected with a crimping type thread conversion joint according to any one of claims 1-5, and one ends of the upstream pipeline and the downstream pipeline are respectively connected to the inner circles of the crimping type thread conversion joints.

7. The thin-wall clamping ball valve according to claim 6, characterized in that: An installation groove is provided in the inner circle of one end of each crimping type thread conversion joint, a third sealing gasket (600) is arranged in the installation groove, and the periphery of a valve ball (200) can be attached to one end of the third sealing gasket (600).

8. The thin-wall clamping ball valve according to claim 7, wherein: The materials of the second sealing gasket (400) and the third sealing gasket (600) are both rubber or PTFE plastic.

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