Efficient sealing stop valve

Abstract

The utility model relates to the field of valves, and particularly discloses an efficient sealing stop valve which comprises a valve body, a valve cover is fixedly installed above the valve body, an internal thread frame is fixedly installed above the valve cover, a valve rod is in threaded connection with the interior of the internal thread frame, and the lower end of the valve rod is inserted into the valve body and connected with a valve clack mechanism. A sealing opening is formed in the valve body, the valve clack mechanism comprises a valve clack body, the upper end of the valve clack body is connected with the lower end of the valve rod, a gasket mounting groove is formed in the outer side of the valve clack body, a hollow part is formed in the valve clack body, and an inner ring of the gasket mounting groove is sunken towards the interior of the hollow part. The valve clack mechanism is designed, and the gasket mounting groove and the pressing rods are arranged above the valve clack mechanism, so that the sealing gasket can be pressed and mounted on the valve clack mechanism, when the sealing gasket is broken, it is guaranteed that the sealing gasket is not prone to being separated from the valve clack mechanism through the multiple pressing rods, and when a user disassembles the valve body and replaces the gasket, the sealing gasket is not prone to being separated from the valve clack mechanism. And the gasket cannot fall into the valve body and is difficult to take out.

Description

TECHNICAL FIELD

[0001] The utility model relates to the valve field, concretely relates to a high -efficient sealing stop valve. BACKGROUND

[0002] The stop valve is also called the cut-off valve and belongs to the forced sealing type valve, so when the valve is closed, pressure must be applied to the valve clack to force the sealing surface not to leak.

[0003] The stop valve on the market is sealed by installing the sealing gasket on the valve clack. When the sealing gasket is improperly installed, the material is not suitable or the working condition exceeds the bearing range, the sealing gasket will be separated from the valve clack, the sealing gasket will not be in the complete annular shape when breaking and will be easily separated from the valve clack, and the sealing gasket will be easily dropped in the valve body and not easily taken out. Therefore, the skilled person in the art provides a high -efficient sealing stop valve to solve the problems in the above background. SUMMARY

[0004] To solve the above technical problems, the utility model provides a high -efficient sealing stop valve, including the valve body, the valve body top fixed installation has the valve cover, the valve cover top fixed installation has the internal thread frame, the internal thread frame inside thread connection has the valve rod, the valve rod lower extreme inserts the valve body inside connection has the valve clack mechanism;

[0005] The valve body is provided with a sealing port, the valve clack mechanism includes a valve clack body, the upper end of the valve clack body is connected with the lower end of the valve rod, the outer side of the valve clack body is provided with a gasket mounting groove, the inner side of the valve clack body is provided with a hollow, the inner ring of the gasket mounting groove is recessed towards the inner side of the hollow, a mounting disc is mounted below the inner side of the valve clack body, a plurality of pressing rods are fixedly connected above the mounting disc, the upper end of the pressing rod penetrates through the valve clack body and is located in the gasket mounting groove, a sealing gasket is sleeved on the outer side of the valve clack body, the inner ring of the sealing gasket is located in the gasket mounting groove, and the pressing rod is located below the inner ring of the sealing gasket.

[0006] Preferably, the valve body is provided with a connecting port on both sides, and a plurality of connecting holes are arranged on the circumferential side of the connecting port.

[0007] Preferably, a hand wheel is fixedly installed above the valve rod.

[0008] Preferably, a hole is provided above the valve clack body, the lower end of the valve rod is inserted into the hole, and the hole and the lower end of the valve rod are transversely inserted into a positioning pin.

[0009] Preferably, a connecting bolt is inserted below the mounting disc, a connecting bolt hole is fixedly connected in the inner side of the valve clack body, and the upper end of the connecting bolt is screwed into the inner side of the connecting bolt hole.

[0010] Preferably, the pressing rods are evenly arranged in an annular shape around the gasket mounting groove.

[0011] The technical effects and advantages of this utility model are as follows:

[0012] This utility model features a valve disc mechanism with a gasket mounting groove and a clamping rod on top. This allows the sealing gasket to be pressed firmly onto the valve disc mechanism. When the sealing gasket breaks, multiple clamping rods ensure that it does not easily detach from the valve disc mechanism. When the user disassembles the valve body to replace the gasket, the gasket will not fall into the valve body and become difficult to remove. Attached Figure Description

[0013] Fig. 1 This is a structural diagram provided in this application;

[0014] Fig. 2 This is a schematic diagram of the internal structure of the valve body provided in this application;

[0015] Fig. 3 This is a schematic diagram of the gasket mounting groove provided in this application;

[0016] Fig. 4 This is a schematic diagram of the installation disk provided in this application;

[0017] In the picture:

[0018] 1. Valve body; 2. Connecting port; 3. Valve cover; 4. Internal thread bracket; 5. Valve stem; 6. Handwheel; 7. Sealing port;

[0019] 8. Valve disc mechanism; 81. Valve disc body; 82. Gasket mounting groove; 83. Pressure rod; 84. Mounting plate; 85. Connecting bolt; 86. Connecting bolt hole; 9. Sealing gasket. Detailed Implementation

[0020] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0021] In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" 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; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] Please see Figs. 1-4 In this embodiment, a highly efficient sealing shut-off valve is provided, including a valve body 1, a valve cover 3 fixedly installed on the top of the valve body 1, an internal threaded bracket 4 fixedly installed on the top of the valve cover 3, a valve stem 5 internally threadedly connected to the internal threaded bracket 4, and a valve disc mechanism 8 inserted into the valve body 1 at the lower end of the valve stem 5.

[0024] The valve body 1 has a sealing port 7 inside. The valve disc mechanism 8 includes a valve disc body 81, the upper end of which is connected to the lower end of the valve stem 5. The valve disc body 81 has a gasket mounting groove 82 on its outer side. The valve disc body 81 is hollow inside, and the inner ring of the gasket mounting groove 82 is recessed into the hollow. An mounting plate 84 is installed at the lower part of the valve disc body 81. Multiple clamping rods 83 are fixedly connected to the upper part of the mounting plate 84. The upper end of the clamping rod 83 passes through the valve disc body 81 and is located inside the gasket mounting groove 82. A sealing gasket 9 is fitted on the outer side of the valve disc body 81. The inner ring of the sealing gasket 9 is located inside the gasket mounting groove 82. The clamping rod 83 is located below the inner ring of the sealing gasket 9. The inner ring of the sealing gasket 9 is pressed into the gasket mounting groove 82 by the clamping rod 83. When the sealing gasket 9 breaks, the clamping rod 83 presses the sealing gasket 9 back into place, preventing the sealing gasket 9 from falling out of the valve disc body 81 and into the valve body 1, thus making it difficult to remove.

[0025] In this embodiment, specifically, the valve body 1 has connection ports 2 on both sides, and the upper side of the connection ports 2 has multiple connection holes. The valve body 1 is connected to a pipeline through these multiple connection holes.

[0026] In this embodiment, a handwheel 6 is fixedly installed above the valve stem 5. The handwheel 6 allows for easy rotation of the valve stem 5, which in turn lowers the valve stem 5 into the valve body 1.

[0027] In this embodiment, specifically, an insertion hole is provided above the valve disc body 81, the lower end of the valve stem 5 is inserted into the insertion hole, and a positioning pin is inserted laterally into the insertion hole and the lower end of the valve stem 5.

[0028] In this embodiment, specifically, a connecting bolt 85 is inserted below the mounting plate 84, and a connecting bolt hole 86 is fixedly connected inside the valve disc body 81. The upper end of the connecting bolt 85 is screwed into the connecting bolt hole 86. The mounting plate 84 is installed below the valve disc body 81 through the connecting bolt 85 and the connecting bolt hole 86.

[0029] In this embodiment, specifically, the clamping rods 83 are evenly arranged in a ring around the gasket mounting groove 82.

[0030] Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of this utility model without creative effort should fall within the protection scope of this utility model. Structures, devices, and operating methods not specifically described and explained in this utility model, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A high-efficiency sealing gate valve, comprising a valve body (1), characterized in that, A valve cover (3) is fixedly installed on the top of the valve body (1), and an internal threaded bracket (4) is fixedly installed on the top of the valve cover (3). A valve stem (5) is connected to the internal threaded bracket (4), and the lower end of the valve stem (5) is inserted into the valve body (1) and connected to a valve disc mechanism (8). The valve body (1) has a sealing port (7) inside. The valve disc mechanism (8) includes a valve disc body (81). The upper end of the valve disc body (81) is connected to the lower end of the valve stem (5). The valve disc body (81) has a gasket mounting groove (82) on the outside. The valve disc body (81) is hollow inside. The inner ring of the gasket mounting groove (82) is recessed into the hollow. An installation plate (84) is installed at the bottom inside the valve disc body (81). Multiple clamping rods (83) are fixedly connected above the installation plate (84). The upper end of the clamping rod (83) passes through the valve disc body (81) and is located inside the gasket mounting groove (82). A sealing gasket (9) is sleeved on the outside of the valve disc body (81). The inner ring of the sealing gasket (9) is located inside the gasket mounting groove (82). The clamping rod (83) is located below the inner ring of the sealing gasket (9).

2. The high-efficiency sealing shut-off valve according to claim 1, characterized in that, The valve body (1) has connection ports (2) on both sides, and multiple connection holes are provided on the upper side of the connection ports (2).

3. The high-efficiency sealing shut-off valve according to claim 1, characterized in that, A handwheel (6) is fixedly installed above the valve stem (5).

4. The high-efficiency sealing shut-off valve according to claim 1, characterized in that, The valve disc body (81) is provided with an insertion hole on the top, and the lower end of the valve stem (5) is inserted into the insertion hole. The insertion hole and the lower end of the valve stem (5) are laterally inserted with a positioning pin.

5. The high-efficiency sealing shut-off valve according to claim 1, characterized in that, A connecting bolt (85) is inserted below the mounting plate (84), and a connecting bolt hole (86) is fixedly connected inside the valve disc body (81). The upper end of the connecting bolt (85) is screwed into the connecting bolt hole (86).

6. The high-efficiency sealing shut-off valve according to claim 1, characterized in that, The clamping rods (83) are evenly arranged in a ring around the gasket mounting groove (82).

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