Valve casting

Abstract

The utility model discloses a valve casting which comprises a valve body and further comprises a connecting piece fixedly connected with the valve body through a fastening piece. The sealing assembly is arranged at the joint of the connecting piece and the valve body; the sealing assembly comprises a positioning ring which is arranged on the connecting face of the valve body. The connecting ring is arranged on the connecting surface of the connecting piece; the inner sealing ring is arranged between the connecting piece and the valve body and located on the inner side of the positioning ring. The outer sealing ring is arranged between the connecting piece and the valve body and located on the outer side of the positioning ring. Wherein the connecting ring is inserted into the positioning ring, and the section of the positioning ring is arranged in a concave shape; the ball valve further comprises a sealing gasket which is arranged between the contact faces of the positioning ring and the connecting ring, in daily production and life, through the arrangement of the positioning ring, the connecting ring, the inner sealing ring and the outer sealing ring, the sealing performance between the valve body and the connecting piece can be improved, and a medium in the ball valve is prevented from flowing out.

Description

Technical Field

[0001] This utility model relates to a valve casting. Background Technology

[0002] Ball valves are typically used to control the flow of liquids. The ball valve casting is part of the entire ball valve. Existing ball valve castings lack the function of filtering impurities in the liquid after casting. When the ball valve controls the flow of liquids containing impurities, the impurities in the liquid can easily lead to uncleanliness inside the ball valve after passing through it, which can easily cause blockage and hinder the normal use of the ball valve.

[0003] Existing anti-clogging ball valves, such as a ball valve casting with patent number CN216896011U, include a ball valve casting body, a connecting ring slidably inserted at the rear end of the ball valve casting body, and a limiting member between the ball valve casting body and the connecting ring. A Y-shaped frame is fixedly connected to the inner wall of the connecting ring, and three filter screens are attached between the outer wall of the Y-shaped frame and the inner wall of the connecting ring. A fan-shaped frame is attached to the front surface of each of the three filter screens.

[0004] This embodiment can prevent the ball valve from becoming clogged when controlling the flow of liquid containing impurities. However, it has the following drawbacks:

[0005] 1. Ball valves are usually fitted with sealing rings at their joints, but these sealing rings are prone to aging, and the medium inside the ball valve can easily leak out from the gaps at the joints.

[0006] 2. Ball valves are usually fixed with bolts, but after prolonged use, the bolts are prone to loosening. Summary of the Invention

[0007] This utility model aims to solve one of the technical problems existing in the prior art.

[0008] This application provides a valve casting, including a valve body, and further comprising:

[0009] The connector is fixedly connected to the valve body by fasteners;

[0010] A sealing assembly is located at the connection between the connector and the valve body.

[0011] The sealing assembly includes:

[0012] A positioning ring is disposed on the connecting surface of the valve body;

[0013] A connecting ring is disposed on the connecting surface of the connector;

[0014] The inner sealing ring is located between the connector and the valve body, inside the positioning ring.

[0015] The outer sealing ring is located between the connector and the valve body, on the outside of the positioning ring;

[0016] The connecting ring is inserted into the positioning ring, and the positioning ring has a concave cross-section.

[0017] Also includes:

[0018] A sealing gasket is placed between the contact surfaces of the positioning ring and the connecting ring.

[0019] Also includes:

[0020] A pair of positioning grooves are respectively set in the connection holes of the valve body;

[0021] A threaded sleeve, which is threadedly connected to the connection hole between the valve body and the connecting component;

[0022] A pair of limiting components are respectively movably mounted on both sides of the threaded sleeve;

[0023] One of the limiting components can be snapped into each positioning slot.

[0024] The limit components include:

[0025] The movable cavity is located on the side wall of the threaded sleeve;

[0026] A limiting plate, one end of which is rotatably connected to the movable cavity;

[0027] A chute is located within the movable cavity;

[0028] The pusher component is slidably installed in the slide groove, with one side connected to the limit plate.

[0029] The driving components include:

[0030] The slider is slidably mounted within the groove.

[0031] The support block is fixedly connected to the outside of the slider;

[0032] The spring has its two ends fixedly connected between the bottom end of the groove and the slider.

[0033] The connecting rod has two ends that are rotatably connected between the inside of the support block and the limiting plate.

[0034] The beneficial effects of this utility model are as follows:

[0035] 1. By setting up positioning rings, connecting rings, inner sealing rings, and outer sealing rings, the sealing performance between the valve body and connecting parts can be improved, preventing the medium inside the ball valve from flowing out;

[0036] 2. By setting up positioning grooves, threaded sleeves, limiting components and pushing components, the threaded sleeve is limited, effectively preventing the threaded sleeve from loosening. Attached Figure Description

[0037] Figure 1 This is a cross-sectional view of a valve casting according to an embodiment of this application;

[0038] Figure 2 For this Figure 1 Enlarged schematic diagram of a local structure at point A;

[0039] Figure 3 For this Figure 1 Enlarged schematic diagram of the local structure at point B.

[0040] Figure Labels

[0041] 1-Valve body, 2-Connector, 3-Sealing assembly, 4-Positioning ring, 5-Connecting ring, 6-Inner sealing ring, 7-Outer sealing ring, 8-Sealing gasket, 9-Positioning groove, 10-Threaded sleeve, 11-Limiting assembly, 12-Moving cavity, 13-Limiting plate, 14-Slide groove, 15-Pushing assembly, 16-Slider, 17-Support block, 18-Spring, 19-Connecting rod, 20-Fastener. Detailed Implementation

[0042] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0043] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of 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 "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0044] The server provided in this application will be described in detail below with reference to the accompanying drawings, through specific embodiments and application scenarios.

[0045] Example 1:

[0046] like Figure 1 , Figure 2As shown, this application provides a valve casting, including a valve body 1, and further including: a connector 2, which is fixedly connected to the valve body 1 by fasteners 20; and a sealing assembly 3, which is disposed at the connection between the connector 2 and the valve body 1.

[0047] Furthermore, the sealing assembly 3 includes a positioning ring 4 disposed on the connecting surface of the valve body 1; a connecting ring 5 disposed on the connecting surface of the connector 2; an inner sealing ring 6 disposed between the connector 2 and the valve body 1, located inside the positioning ring 4; and an outer sealing ring 7 disposed between the connector 2 and the valve body 1, located outside the positioning ring 4. The connecting ring 5 is inserted into the positioning ring 4, and the positioning ring 4 has a concave cross-section.

[0048] Furthermore, it also includes a sealing gasket 8, which is disposed between the contact surfaces of the positioning ring 4 and the connecting ring 5.

[0049] In this embodiment of the application, due to the above-described structure, when the valve body 1 needs to be connected to other connecting parts 2, the two are connected by fasteners 20 (e.g., bolts, screws, etc.). To avoid the possibility of leakage of the internal medium of the valve body, a sealing component 3 needs to be provided at the connection end between the valve body 1 and the connecting part 2. During installation, the connecting ring 5 needs to be inserted into the positioning ring 4. The cross-section of the positioning ring 4 is concave, which increases the contact area and positioning area between the connecting ring 5 and the positioning ring 4. A sealing gasket 8 is provided between the connecting ring 5 and the positioning ring 4 to improve the sealing strength between the connecting ring 5 and the positioning ring 4. An inner sealing ring 6 and an outer sealing ring 7 are provided on both sides of the positioning ring 4, which can achieve a double-layer sealing effect, further improving the sealing effect between the connecting ring 5 and the positioning ring 4, and effectively preventing the leakage of the internal medium of the valve body.

[0050] Example 2:

[0051] like Figure 1 , Figure 3 As shown, in this embodiment, in addition to the structural features of the aforementioned embodiments, it also includes: a pair of positioning grooves 9, which are respectively disposed in the connecting holes of the valve body 1; a threaded sleeve 10, which is threadedly connected to the connecting holes of the valve body 1 and the connector 2; and a pair of limiting components 11, which are respectively movably installed on both sides of the threaded sleeve 10; wherein, the pair of limiting components 11 can be snapped into each positioning groove 9.

[0052] Furthermore, the limiting component 11 includes a movable cavity 12 disposed on the side wall of the threaded sleeve 10; a limiting plate 13, one end of which is rotatably connected to the movable cavity 12; a sliding groove 14 disposed within the movable cavity 12; and a pushing component 15 slidably mounted within the sliding groove 14, one side of which is connected to the limiting plate 13.

[0053] Furthermore, the pushing assembly 15 includes a slider 16, which is slidably mounted in the groove 14; a support block 17, which is fixedly connected to the outside of the slider 16; a spring 18, whose two ends are fixedly connected between the bottom end of the groove 14 and the slider 16; and a connecting rod 19, whose two ends are rotatably connected between the inside of the support block 17 and the limiting plate 13.

[0054] In this embodiment of the application, due to the above-described structure, when installing the valve body 1 and the connector 2, the connecting holes of the valve body 1 and the connector 2 are first aligned one by one, and then the threaded sleeve 10 is installed into the connecting hole. The threaded sleeve 10 is threaded both inside and outside. It is screwed into the connecting hole of the valve body 1 and the connector 2 through the thread. After screwing, a pair of limiting components 11 correspond to each positioning groove 9. The fastener 20 is inserted into the threaded sleeve 10. During the process of the fastener 20 being inserted, the outer wall squeezes the support block 17. The support block 17 pushes the slider 16 to move along the slide groove 14. At the same time, the slider 16 drives the connecting rod 19 to move, the spring 18 shortens, and the connecting rod 19 pushes the limiting plate 13 to move. The limiting plate 13 swings and is installed in the positioning groove 9. The positioning groove 9 limits and engages the limiting plate 13 to prevent the threaded sleeve 10 from moving, thereby achieving the effect of preventing loosening and improving the firmness of the installation of the valve body 1 and the connecting sleeve.

[0055] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0056] 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 valve casting, comprising a valve body (1), characterized in that, Also includes: The connector (2) is fixedly connected to the valve body (1) by fasteners; A sealing assembly (3) is disposed at the connection between the connector (2) and the valve body (1), the sealing assembly (3) comprising: A positioning ring (4) is disposed on the connecting surface of the valve body (1); A connecting ring (5) is disposed on the connecting surface of the connector (2); The inner sealing ring (6) is disposed between the connector (2) and the valve body (1) and is located inside the positioning ring (4); An outer sealing ring (7) is disposed between the connector (2) and the valve body (1), located outside the positioning ring (4); The connecting ring (5) is inserted into the positioning ring (4), the positioning ring (4) has a concave cross-section, and further includes: A sealing gasket (8), disposed between the contact surfaces of the positioning ring (4) and the connecting ring (5), further includes: A pair of positioning grooves (9) are respectively disposed in the connection holes of the valve body (1); A threaded sleeve (10) is threadedly connected to the connection hole between the valve body (1) and the connector (2); A pair of limiting components (11) are respectively movably installed on both sides of the threaded sleeve (10); One pair of the limiting components (11) can be snapped into each positioning slot (9).

2. A valve casting according to claim 1, characterized in that, The limiting component (11) includes: The movable cavity (12) is disposed on the side wall of the threaded sleeve (10); A limiting plate (13) is rotatably connected at one end to the movable cavity (12); A chute (14) is provided within the movable cavity (12); The push component (15) is slidably installed in the groove (14) and connected to the limiting plate (13) on one side.

3. A valve casting according to claim 2, characterized in that, The actuation component (15) includes: A slider (16) is slidably mounted in the groove (14); Support block (17), which is fixedly connected to the outside of the slider (16); Spring (18), both ends of which are fixedly connected between the bottom end of the groove (14) and the slider (16); The connecting rod (19) is rotatably connected at both ends between the inner side of the support block (17) and the limiting plate (13).

Images