Direct insertion type plug valve

Abstract

The direct insertion type plug valve comprises a valve body, a positioning guide sleeve is arranged on the valve body, the positioning guide sleeve and the valve body are of an integrated structure, a converging cavity is formed in the bottom of the valve body, an electromagnetic valve cavity is further formed in the valve body, a first inclined hole is formed between the converging cavity and the electromagnetic valve cavity, and a second inclined hole is formed between the converging cavity and the electromagnetic valve cavity. And a first inclined hole is formed between the positioning guide sleeve and the converging cavity and is communicated with the converging cavity and the electromagnetic valve cavity, and a second inclined hole is formed between the positioning guide sleeve and the converging cavity and is communicated with the positioning guide sleeve and the converging cavity. The direct insertion type plug valve is integrally complete, a notch does not need to be formed in the positioning guide sleeve, the depths of the two inclined holes are much shallower compared with the prior art, the first inclined hole does not need to be machined and formed, the second inclined hole is good in heat dissipation effect during machining, machining and forming are convenient, and abrasion to a cutter is small.

Description

Technical Field

[0001] This utility model relates to the field of plug valve technology, and in particular to a direct-insertion plug valve. Background Technology

[0002] Referring to the utility model patent with announcement number CN219282534U, a plug valve for stove is disclosed. In order to avoid the problem caused by the positioning guide sleeve and the valve body forming a separate structure, the positioning guide sleeve and the valve body are constructed into an integral structure. The problem that the positioning guide sleeve and the valve body cannot be integrally formed is solved by opening a notch on the positioning guide sleeve that corresponds to the opening direction of the oblique hole. At the same time, the drilling of the oblique hole is also successfully realized.

[0003] It should be noted that in this plug valve for stoves, one end of the oblique hole is used to connect to the outlet of the positioning guide sleeve, and the other end of the oblique hole is used to connect to the inlet of the solenoid valve cavity, thereby allowing gas to pass from the positioning guide sleeve through the oblique hole into the solenoid valve cavity.

[0004] Despite the optimization and improvement of the above structure, the following shortcomings still exist when actually performing angled hole drilling:

[0005] 1. The positioning guide sleeve is not a complete circle and requires notches, which affects the integrity of the positioning guide sleeve and reduces product quality;

[0006] 2. When drilling, the angled hole is a deep and long hole, which makes the drilling operation more difficult and the overall heat dissipation is poor, resulting in greater wear on the tool and affecting the tool's service life.

[0007] 3. Considering the material of the valve body, and aiming to save materials as much as possible, the subsequent processing of deep and long oblique holes will, to some extent, lead to a waste of raw materials and is not material-saving enough.

[0008] Therefore, how to optimize the structural design of the stopcock valve for this stove to effectively solve the above-mentioned shortcomings is a technical problem that needs to be further solved by those skilled in the art. Utility Model Content

[0009] To solve the above-mentioned technical problems, this utility model proposes a new type of direct-insertion plug valve.

[0010] The inventive design of this plug valve is based on the principle of integrating the positioning guide sleeve with the valve body. The positioning guide sleeve is designed as a complete ring, avoiding the need for notches. To facilitate the machining of the oblique hole, it is divided into two intersecting short oblique holes at the bottom of the valve body. One short oblique hole connects to the outlet of the positioning guide sleeve, and the other connects to the inlet of the solenoid valve cavity. The short oblique hole connecting to the solenoid valve cavity can be integrally formed with the valve body, avoiding subsequent machining and saving raw materials. The short oblique hole connecting to the positioning guide sleeve can be drilled later, with a drilling depth much shorter than existing deep and long holes, facilitating drilling operations and effectively improving heat dissipation and tool wear.

[0011] Based on the above-mentioned inventive concept, the specific technical solution of the direct-insertion plug valve disclosed in this utility model is as follows: a direct-insertion plug valve is provided, including a valve body, a positioning guide sleeve is provided on the valve body, the positioning guide sleeve and the valve body are integrally structured, a junction cavity is provided at the bottom of the valve body, a solenoid valve cavity is also provided inside the valve body, a first oblique hole is provided between the junction cavity and the solenoid valve cavity, the first oblique hole communicates with the junction cavity and the solenoid valve cavity, a second oblique hole is provided between the positioning guide sleeve and the junction cavity, the second oblique hole communicates with the positioning guide sleeve and the junction cavity.

[0012] Preferably, the first oblique hole is integrally die-cast with the valve body, thereby eliminating the need for subsequent drilling of the first oblique hole.

[0013] Preferably, the second oblique hole is formed by machining and punching, and the second oblique hole is a short oblique hole, which is convenient for machining and punching.

[0014] Preferably, the junction cavity is configured as a positioning hole, the bottom of the valve body is fitted with a valve cover, and the valve cover is provided with a positioning post positioned in the positioning hole.

[0015] Preferably, the positioning guide sleeve is a complete ring structure, so that the positioning guide sleeve is complete and without gaps.

[0016] Preferably, the first oblique hole is connected to the side and bottom of the junction cavity at one connection point, and the second oblique hole is connected to the side and bottom of the junction cavity at another connection point.

[0017] Preferably, a sealing gasket is provided between the bottom of the valve body and the valve cover. The sealing gasket is located near the edge of the bottom of the valve body, and the sealing gasket extends towards the positioning hole to form an inner sealing gasket surrounding the positioning hole to achieve sealing of the positioning hole.

[0018] Preferably, the positioning hole has a hole body extending along the axial direction of the positioning hole to the connection point at the opening end. This hole body is connected to the first oblique hole at the connection point. This hole body is a die-casting process hole body, which mainly facilitates the integral die-casting of the valve body and the first oblique hole.

[0019] Preferably, the inner sealing gasket extends inward to cover the orifice, and the inner ring of the inner sealing gasket is configured to match the size and shape of the positioning post. This eliminates the need to modify the positioning post structure, allowing it to remain cylindrical without affecting the sealing effect.

[0020] Beneficial effects:

[0021] This invention divides the deep, elongated hole in the prior art into two short, oblique holes, namely the first oblique hole and the second oblique hole. This allows the first oblique hole to be integrally die-cast with the valve body, avoiding subsequent machining operations on the hole and saving raw material usage. When the second oblique hole is machined later, its overall depth is much shallower than that of the deep, elongated hole in the prior art. On the one hand, it facilitates drilling operations, and on the other hand, it has a better heat dissipation effect, significantly reducing tool friction and helping to extend the tool's service life.

[0022] In this utility model, the positioning guide sleeve can still be integrally die-cast with the valve body, and the whole can be set into a complete ring structure. Without the need to set a notch, the second oblique hole can still be processed and formed. At this time, the second oblique hole can be drilled from the junction cavity at the bottom of the valve body. Attached Figure Description

[0023] Figure 1 This is a first-position three-dimensional structural diagram of the valve body of this utility model (mainly showing the bottom structure of the valve body).

[0024] Figure 2 This is a second-position three-dimensional structural diagram of the valve body of this utility model (mainly showing the structure of the positioning guide sleeve of the valve body).

[0025] Figure 3 This is a three-dimensional structural diagram of the valve cover of this utility model.

[0026] Figure 4 A three-dimensional structural diagram of the valve body of this utility model after a sealing gasket is installed.

[0027] As shown in the figure:

[0028] 1. Valve body; 2. Positioning guide sleeve; 3. Connecting cavity; 4. Solenoid valve cavity; 5. First oblique hole; 6. Second oblique hole; 7. Valve cover; 8. Positioning pin; 9. Sealing gasket; 10. Inner sealing gasket; 11. Hole body. Detailed Implementation

[0029] The technical solutions of specific embodiments of this utility model will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. All other embodiments obtained by those skilled in the art based on the teachings of the following embodiments are within the protection scope of this utility model.

[0030] The terms "component one," "component two," etc., used in the specification and claims of this application are used to distinguish similar objects and are not used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "component one," "component two," etc., are generally of the same class, and the number of objects is not limited; for example, "component one" can be one or more objects.

[0031] This utility model discloses a direct-insertion plug valve, which includes a valve body and a sealing cap mounted on the bottom of the valve body. The valve body contains a valve cavity (such as a solenoid valve cavity, a valve core cavity, etc.) and various air passages. After the components are assembled, they together constitute the direct-insertion plug valve.

[0032] Specifically, with Figures 1-4 The embodiments shown will be described in detail.

[0033] To address the issues in existing technologies where notches in the positioning guide sleeve 2 affect overall integrity and the problems associated with machining deep, oblique, and long holes, this embodiment provides a direct-insertion plug valve. The plug valve includes a valve body 1, which is equipped with a positioning guide sleeve 2. The positioning guide sleeve 2 and the valve body 1 are integrally formed, with the positioning guide sleeve 2 constructed as a complete ring without any notches, resulting in a seamless overall structure. Furthermore, a junction cavity 3 is located at the bottom of the valve body 1, and a solenoid valve cavity 4 is also provided within the valve body 1. A first oblique hole 5 is provided between the junction cavity 3 and the solenoid valve cavity 4, communicating with both the junction cavity 3 and the solenoid valve cavity 4. A second oblique hole 6 is provided between the positioning guide sleeve 2 and the junction cavity 3, communicating with both the positioning guide sleeve 2 and the junction cavity 3.

[0034] It should be noted that, in Figure 1 In the image, a partial cutout is used to display the solenoid valve cavity 4, mainly to show the approximate location of the solenoid valve cavity 4.

[0035] The integrated structure refers to the positioning guide sleeve 2 being die-cast integrally with the valve body 1, eliminating the need for a separate positioning guide sleeve 2. The second oblique hole 6, however, is machined, as it is a short oblique hole, facilitating machining.

[0036] It should be noted that: Firstly, when the valve body 1 is installed on the gas inlet pipe of the gas stove, the positioning guide sleeve 2 provides positioning and guiding function, and allows the gas to enter the interior of the valve body 1 from the positioning guide sleeve 2; Secondly, since the positioning guide sleeve needs to serve both positioning and guiding function and as the gas inlet connection end, it needs to have a certain depth. The junction cavity 3 only needs to allow gas to enter the first oblique hole 5 through the second oblique hole 6, so its depth can be designed to be shallower than the positioning guide sleeve 2. Therefore, the second oblique hole 6 can be processed by subsequent drilling operation at the junction cavity 3. Since the first oblique hole 5 is closer to the solenoid valve cavity 4 and the diameter of the solenoid valve cavity 4 is much larger than that of the positioning guide sleeve 2, it can be integrally die-cast with the valve body 1 during die casting.

[0037] In this embodiment, the junction cavity 3 is configured as a positioning hole, and a valve cover 7 is fitted to the bottom of the valve body 1. A positioning post 8, positioned within the positioning hole, is provided on the valve cover 7. By configuring the positioning hole, the junction cavity 3 can both perform junction and air passage, and facilitate the positioning and installation of the valve cover 7. It should be noted that the positioning installation does not require a deep hole; only a slight fit is needed for positioning, thus not affecting the depth requirement of the positioning hole.

[0038] To avoid increasing the depth of the junction cavity 3, the two oblique holes should be connected at the lower side of the junction cavity 3 as much as possible. Therefore, in this embodiment, the first oblique hole 5 is connected to the first connection point (unmarked) between the side and bottom of the junction cavity 3, and the second oblique hole 6 is connected to the second connection point (unmarked) between the side and bottom of the junction cavity 3.

[0039] Because the bottom of the valve body 1 is provided with various chambers, a sealing gasket 9 is provided between the bottom of the valve body 1 and the valve cover 7. The sealing gasket 9 is located near the edge of the bottom of the valve body 1, and the sealing gasket 9 also extends towards the positioning hole and forms an inner sealing gasket 10 around the positioning hole to achieve sealing of the positioning hole.

[0040] In this embodiment, the positioning hole has a hole body 11 extending axially along the positioning hole to the connection point at its open end. This hole body 11 communicates with the first oblique hole 5 at the connection point. The presence of this hole body 11 facilitates the integral die-casting of the first oblique hole 5 and the valve body 1.

[0041] To avoid modifying the structure of the positioning post 8, in this embodiment, the inner sealing gasket 10 extends inward to cover the hole 11, and the inner ring of the inner sealing gasket 10 is configured to match the size and shape of the positioning post 8.

[0042] This utility model's direct-insertion plug valve has a complete and simple overall structure. In particular, the positioning guide sleeve is seamless and perfectly integrated, forming a complete ring structure, which improves overall product quality. Compared to existing technologies, the deep, elongated oblique hole is divided into two short oblique holes: the first oblique hole can be integrally die-cast with the valve body, eliminating the need for subsequent drilling and effectively saving raw materials; the second oblique hole can be machined in the junction cavity later through drilling, thus eliminating the need for machining notches on the positioning guide sleeve as in existing technologies. This ensures the integrity of the positioning guide sleeve. Furthermore, the overall depth of the second oblique hole is much shallower than the deep, elongated oblique holes in existing technologies, minimizing heat dissipation during machining, effectively reducing tool wear, and facilitating overall machining.

[0043] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A direct-insertion plug valve, comprising a valve body (1), characterized in that: The valve body (1) is provided with a positioning guide sleeve (2), which is an integral structure with the valve body (1). The bottom of the valve body (1) is provided with a junction cavity (3), and the valve body (1) is also provided with a solenoid valve cavity (4). A first oblique hole (5) is provided between the junction cavity (3) and the solenoid valve cavity (4). The first oblique hole (5) is connected to the junction cavity (3) and the solenoid valve cavity (4). A second oblique hole (6) is provided between the positioning guide sleeve (2) and the junction cavity (3). The second oblique hole (6) is connected to the positioning guide sleeve (2) and the junction cavity (3).

2. The direct-insertion plug valve according to claim 1, characterized in that, The first oblique hole (5) is integrally die-cast with the valve body (1).

3. The direct-insertion plug valve according to claim 2, characterized in that, The junction cavity (3) is configured as a positioning hole, and a valve cover (7) is fitted at the bottom of the valve body (1). A positioning post (8) is provided on the valve cover (7) and positioned in the positioning hole.

4. The direct-insertion plug valve according to claim 1 or 2, characterized in that, The positioning guide sleeve (2) is a full-circle annular structure.

5. The direct-insertion plug valve according to claim 3, characterized in that, The first oblique hole (5) is connected to the side and bottom of the junction cavity (3) at one point, and the second oblique hole (6) is connected to the side and bottom of the junction cavity (3) at another point.

6. The direct-insertion plug valve according to claim 5, characterized in that, A sealing gasket (9) is provided between the bottom of the valve body (1) and the valve cover (7). The sealing gasket (9) is located near the bottom edge of the valve body (1), and the sealing gasket (9) extends towards the positioning hole and forms an inner sealing gasket (10) around the positioning hole to achieve sealing of the positioning hole.

7. The direct-insertion plug valve according to claim 6, characterized in that, The positioning hole has a hole body (11) at its open end that extends along the axial direction of the positioning hole to the connection point one. The hole body (11) is connected to the first oblique hole (5) at the connection point one.

8. The direct-insertion plug valve according to claim 7, characterized in that, The inner sealing gasket (10) also extends inward to cover the bore (11), and the inner ring of the inner sealing gasket (10) is configured to match the size and shape of the positioning post (8).

9. The direct-insertion plug valve according to claim 1, characterized in that, The second oblique hole (6) is formed by machining.

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