Valve element positioning tool of ball valve

Abstract

The utility model relates to the technical field of automobile part manufacturing, in particular to a valve core positioning tool of a ball valve, which comprises a supporting seat, an expansion column matched with an inner cavity of a valve core is arranged on the supporting seat, and the expansion column is connected with an opening driving device and a closing driving device. The expansion column is fixed to the inner wall of the valve element in an extruding mode in the open state, the expansion column is separated from the inner wall of the valve element in the closed state, the expansion column is controlled to be opened through the opening driving device, the valve element is supported and positioned from the interior, coaxial fixing can be achieved, the situation that the positioning tool extends out of the valve element can be avoided, and interference in the installation process is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts manufacturing, in particular to a valve core positioning tool for a ball valve. Background Art

[0002] The four-way valve is the main actuator of the automobile engine cooling water circulation system, including a ball valve housing, a valve core, a dynamic sealing ring, a bracket, a ball valve housing processing channel and a pipe mouth, the valve core is connected to the drive shaft, the drive shaft is controlled to rotate by a motor, the valve core is installed by a manipulator during the installation process with the ball valve housing, and the valve core of the ball valve is clamped by a positioning device to achieve precise positioning. The utility model provides a tooling that can accurately position the valve core of the ball valve, and then cooperate with the manipulator to improve the installation accuracy. Utility Model Content

[0003] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a tooling capable of accurately positioning the valve core of a ball valve.

[0004] The utility model is realized through the following technical scheme: a valve core positioning tool for a ball valve, comprising a support seat, on which is arranged an expansion column which matches the inner cavity of the valve core, the expansion column being connected to an opening drive device and a closing drive device, and being arranged so that the expansion column is squeezed and fixed to the inner wall of the valve core in an open state, and the expansion column is separated from the inner wall of the valve core in a closed state.

[0005] Furthermore, the expansion column includes a plurality of sliders, a cylindrical opening drive cavity is formed between the plurality of sliders, the opening drive device includes a driving column arranged in the opening drive cavity, the end of the driving column is provided with an inclined surface matching the inner wall of the slider, and the driving column can drive the expansion column to open during the relative movement between the driving column and the expansion column.

[0006] Furthermore, the closing drive device includes an elastic ring arranged outside the expansion column, the support seat is provided with a sliding groove matching with the slider, and the drive column and the support seat are slidably connected.

[0007] Furthermore, a plurality of guide blocks are arranged on the support seat around the driving column, a slide groove is formed between two adjacent guide blocks, and the elastic ring is sleeved outside the expansion column and the guide blocks.

[0008] The beneficial effects of the utility model are: a valve core positioning tool for a ball valve, including a support seat, on which is arranged an expansion column that matches the inner cavity of the valve core, the expansion column being connected to an opening drive device and a closing drive device, and arranged so that the expansion column is squeezed and fixed to the inner wall of the valve core in an open state, and is separated from the inner wall of the valve core in a closed state, and the expansion column is opened by controlling the opening drive device to support and position the valve core from the inside, thereby achieving coaxial fixation and avoiding the positioning tool from extending outside the valve core, thereby avoiding interference during installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a structural schematic diagram of Example 1;

[0010] Figure 2 is a schematic diagram of the cross section of the expansion column;

[0011] Among them: 1. Support seat; 2. Driving column; 3. Guide block; 4. Inclined surface; 5. Slide groove; 6. Groove; 7. Slider; 8. Elastic ring; 9. Valve core. DETAILED DESCRIPTION

[0012] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0013] Example 1

[0014] like Figure 1-2As shown, a valve core positioning tool for a ball valve includes an expansion column that matches the inner cavity of the valve core 9, the expansion column is connected to an opening drive device and a closing drive device, the expansion column is squeezed and fixed with the inner wall of the valve core 5 in the open state, and the valve core 5 is positioned, the expansion column is separated from the inner wall of the valve core 5 in the closed state, so that the valve core 9 after press-fitting can be taken out with the ball valve housing to complete the installation action, in this embodiment, the expansion column includes 4-8 sliders 7, the sliders 7 are made of stainless steel material, and can also be quenched as required to ensure structural strength and wear resistance, each slider 7 is matched to form a cylindrical shape, the outer wall matches the inner wall of the ball valve, so that the expansion column and the valve core 9 are coaxial. line, the corresponding expansion column is coaxial with the driving shaft of the valve core 9, and a cylindrical opening driving cavity is formed between each slider 7. The opening driving device includes a driving column 2 installed in the opening driving cavity, and the end of the driving column 2 is processed with a slope 4 that cooperates with the inner wall of the slider 7. In this embodiment, the end of the driving column 2 is processed into an inverted cone shape, and the inner wall of the slider 7 is also processed into a slope 4, so that the end of the driving column 2 does not exceed the expansion column upward under normal conditions. During the relative movement of the driving column 2 and the expansion column, the expansion column can be driven to open through the cooperation of the slope 4. In order to increase the service life, lubricating oil needs to be added regularly. The closing driving device includes an elastic ring 8 mounted outside the expansion column, and the elastic ring 8 can be a sealing ring or a retaining spring.

[0015] The cam 7 is a kind of cam which is used for the expansion column 1 and the expansion column 1 is a kind of cam which is used for the expansion column 1. The cam 7 is a kind of cam which is used for the expansion column 1 and the expansion column 1 is a kind of cam which is used for the expansion column 1. The cam 7 is a kind of cam which is used for the expansion column 1 and the expansion column 1 is a kind of cam which is used for the expansion column 1.

[0016] During use, the support seat 1 is installed on the manipulator to perform lifting, flipping and other actions. The manipulator is equipped with a power device that drives the drive column to move. The power device can be an electric push rod, a cylinder, an oil cylinder, etc. The power device pulls the drive column 2 to move, thereby opening the expansion column, which can achieve coaxial fixation and avoid the positioning tooling from extending outside the valve core, thereby avoiding interference during the installation process.

[0017] It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0018] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0019] The term "comprise" or any other similar term is intended to cover a non-exclusive inclusion, such that a process, article, or apparatus / device that includes a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, article, or apparatus / device.

[0020] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A valve core positioning tool for a ball valve, characterized in that: The invention comprises a support seat (1), on which an expansion column is arranged to cooperate with the inner cavity of the valve core (9), and the expansion column is connected to an opening drive device and a closing drive device, and is configured so that the expansion column is pressed and fixed to the inner wall of the valve core (9) in an open state, and the expansion column is separated from the inner wall of the valve core (9) in a closed state.

2. The valve core positioning tool for a ball valve according to claim 1, characterized in that: The expansion column comprises a plurality of sliders (7), a cylindrical opening drive cavity is formed between the plurality of sliders (7), the opening drive device comprises a driving column (2) arranged in the opening drive cavity, a slope (4) matching the inner wall of the slider (7) is arranged at the end of the driving column (2), and the driving column (2) can drive the expansion column to open during the relative movement between the driving column (2) and the expansion column.

3. The valve core positioning tool for a ball valve according to claim 2, characterized in that: The closing drive device comprises an elastic ring (8) arranged outside the expansion column, the support seat (1) is provided with a sliding groove (5) matching with the slider (7), and the drive column (2) is slidably connected to the support seat (1).

4. The valve core positioning tool for a ball valve according to claim 3, characterized in that: A plurality of guide blocks (3) are arranged on the support seat (1) around the driving column (2), a slide groove (5) is formed between two adjacent guide blocks (3), and the elastic ring (8) is sleeved outside the expansion column and the guide blocks (3).

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