Quick opening and closing device of stop valve

Abstract

The utility model discloses a quick switch device of a stop valve, which comprises a switch assembly arranged in a T-shaped valve body, the switch assembly comprises a valve rod, a valve clack, a fixing block and a stay rope, one end of the stay rope is connected with a valve handle, the switch assembly further comprises a support body and a fixing buckle, and the support body and the fixing buckle are arranged on the T-shaped valve body. A compression spring is further arranged outside the valve rod. The valve handle installed outside is pressed to drive the inhaul cable to pull the inner valve rod to move till the valve clacks move away from the circulation opening, at the moment, the valve handle is fixed to the fixing buckle, the whole valve is opened, then the valve handle is loosened, the inner compression spring acts on the check block to push the valve rod till the valve clack at the tail end blocks the circulation opening, and therefore the whole valve is opened. The process is easy to operate, opening and closing of the valve can be completed only by operating an external valve handle, opening and closing of the whole valve can be rapidly completed conveniently, the impact time of fluid on the valve clack is shortened, and the service life of the whole valve is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of stop valves, in particular to a stop valve fast switching device. Background Art

[0002] The globe valve is a common type of valve used to control the flow of fluids. It usually consists of a valve body, a valve cover, a valve stem and a valve disc. The characteristic of the globe valve is that it can be fully closed or fully opened, and the flow of fluids can be controlled by lifting or pressing the valve disc down. Its working principle is to raise or lower the valve disc by rotating the valve stem, thereby changing the degree of opening and closing of the fluid channel. When the valve disc is lifted to the highest position, the channel is fully opened, allowing the fluid to flow freely. When the valve disc is pressed down to the lowest position, the channel is completely closed, preventing the fluid from passing. The globe valve is suitable for occasions where the flow of fluids needs to be strictly controlled, such as in a pipeline system to cut off the flow of fluids or regulate the flow rate. They are commonly used in industries, construction, water supply and drainage systems, and heating and air-conditioning systems.

[0003] However, stop valves are usually not suitable for occasions that require frequent switching, because their operation requires greater force. During the process of pressing the valve disc down, the fluid exerts greater pressure on it, resulting in an unsmooth and labor-intensive switching process. When the valve disc is completely closed, the fluid may encounter greater resistance, and there will be a certain amount of pressure loss in this process. The fluid will flush the valve disc for a long time, which will shorten the service life of the valve body over time. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a stop valve fast switching device to realize the fast switching of the stop valve and avoid the long-term flushing of the valve disc by the fluid.

[0005] Based on the technical problems existing in the background technology, the utility model proposes a stop valve quick switch device, including a water inlet and a water outlet arranged at both ends of a T-shaped valve body, a valve cover is also arranged above the T-shaped valve body, a fastening nut is also arranged above the valve cover, a valve seat is arranged inside the T-shaped valve body, a flow port is opened on the valve seat, and a switch assembly matched with the flow port is also arranged inside the T-shaped valve body;

[0006] The switch assembly includes a valve stem arranged in a T-shaped valve body, one end of the valve stem is connected to a valve disc, and the other end is connected to a fixing block, one end of the fixing block is connected to a cable, and one end of the cable is connected to a valve handle. The switch assembly also includes a support body installed on the T-shaped valve body and a fixing buckle arranged on the side of the valve cover, the fixing buckle acts on the valve handle, and a compression spring is also provided on the outside of the valve stem, and the compression spring is installed in the T-shaped valve body.

[0007] Preferably, the compression spring is installed in the cavity of the T-type valve body, and a stopper is provided on the valve stem at the bottom of the compression spring, a sealing gasket is provided at one end of the valve stem connected to the valve disc, and the sealing gasket is arranged in the T-type valve body and below the valve cover.

[0008] Preferably, sealing rings are installed at the water inlet and the water outlet, and the sealing rings are provided with a plurality of mounting holes.

[0009] Preferably, a plurality of bolts are installed on the valve cover, and the plurality of bolts are evenly spaced and installed on the valve cover and fixed on the T-shaped valve body.

[0010] Preferably, a connecting shaft is provided at the connection between one end of the valve handle and the cable, and one end of the cable is provided with a rotating head that cooperates with the connecting shaft.

[0011] Preferably, the end of the valve handle is arc-shaped, the support body is at least arranged above the middle of the valve handle, and the end of the support body is arc-shaped, and the inner width of the fixing buckle is at least larger than the width of the tail of the valve handle.

[0012] Compared with the prior art, the stop valve quick switch device proposed by the utility model adopts the above technical solution to achieve the following technical effects:

[0013] The utility model presses the valve handle installed externally to drive the cable to pull the internal valve stem to move until the valve disc moves away from the flow port. At this time, the valve handle is fixed on the fixing buckle, the overall valve is opened, and then the valve handle is released, and the internal compression spring acts on the stopper to push the valve stem until the tail end valve disc blocks the flow port, completing the closure of the valve. This process is simple to operate, and the valve can be opened and closed by operating the external valve handle, which is convenient for quickly completing the opening and closing of the overall valve, reducing the impact time of the fluid on the valve disc, and extending the service life of the overall valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The overall structure of the utility model is shown in FIG. Figure 1 ;

[0015] Figure 2 The overall structure of the utility model is shown in FIG. Figure 2 ;

[0016] Figure 3 It is a partial structural schematic diagram of the utility model;

[0017] Figure 4 It is a partial cross-sectional structural schematic diagram of the utility model;

[0018] Figure 5 It is a schematic diagram of the overall cross-sectional structure of the utility model.

[0019] In the figure: 1. T-type valve body; 2. water inlet; 3. water outlet; 4. valve cover; 41. bolt; 5. fastening nut; 6. valve seat; 61. flow port; 7. switch assembly; 71. valve stem; 72. valve disc; 73. fixing block; 74. cable; 741. rotating head; 75. valve handle; 751. connecting shaft; 76. support body; 77. fixing buckle; 78. compression spring; 79. stopper; 8. sealing ring; 81. mounting hole; 9. sealing gasket. DETAILED DESCRIPTION

[0020] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0022] Reference Figure 1-5 The utility model provides a stop valve quick switch device, including a water inlet 2 and a water outlet 3 arranged at both ends of a T-type valve body 1, a valve cover 4 is also arranged above the T-type valve body 1, a fastening nut 5 is also arranged above the valve cover 4, a valve seat 6 is arranged inside the T-type valve body 1, a flow port 61 is opened on the valve seat 6, and a switch component 7 matched with the flow port 61 is also arranged inside the T-type valve body 1;

[0023] Specifically, the switch assembly 7 includes a valve stem 71 arranged in the T-type valve body 1, one end of the valve stem 71 is connected to a valve disc 72, and the other end is connected to a fixed block 73, one end of the fixed block 73 is connected to a cable 74, and one end of the cable 74 is connected to a valve handle 75. The switch assembly 7 also includes a support body 76 installed on the T-type valve body 1 and a fixing buckle 77 arranged on the side of the valve cover 4, the fixing buckle 77 acts on the valve handle 75, and a compression spring 78 is also provided on the outside of the valve stem 71, and the compression spring 78 is installed in the T-type valve body 1.

[0024] In this embodiment, a switch assembly 7 is provided in the T-type valve body 1, and a valve handle 75 in the switch assembly 7 is used to connect the internal valve stem 71, and the internal valve stem 71 is connected to a valve flap 72, and the valve flap 72 acts on the flow port 61. By pressing the valve handle 75, a pull cable 74 connected at one end is driven, and the pull cable 74 is connected to the valve stem 71, thereby driving the valve flap 72 to move, thereby realizing the switching effect on the flow port 61, thereby realizing the switching of the entire valve, and when the force on the valve handle 75 is removed, the internal valve flap 72 will rebound to the flow port 61 under the action of the compression spring 78, and complete the closing of the valve. The whole process only requires pressing the valve handle 75 to realize the switching and closing of the entire valve, realize rapid switching, reduce the impact time of the internal fluid on the valve flap 72, and thus reduce the loss caused by scouring.

[0025] Reference Figure 4 The compression spring 78 is installed in the cavity of the T-type valve body 1, and a stopper 79 is provided on the valve stem 71 at the bottom of the compression spring 78. A sealing gasket 9 is provided at one end of the valve stem 71 connected to the valve disc 72. The sealing gasket 9 is arranged in the T-type valve body 1 and is located below the valve cover 4.

[0026] Reference Figure 1-2 Sealing rings 8 are installed at the water inlet 2 and the water outlet 3, and a plurality of mounting holes 81 are provided on the sealing rings 8.

[0027] Specifically, a plurality of bolts 41 are installed on the valve cover 4 . The plurality of bolts 41 are evenly spaced and installed on the valve cover 4 , and are fixed on the T-shaped valve body 1 .

[0028] In this embodiment, when the valve handle 75 is pressed, the internal valve flap 72 is lifted. Since a compression spring 78 is provided inside, the external valve handle 75 needs to be fixed by a fixing buckle 77 to prevent the internal valve flap 72 from closing abnormally. During actual use, the valve handle 75 needs to rely on the support body 76 as a lever to pull up the valve flap 72 connected to the other end.

[0029] Reference Figure 3 A connecting shaft 751 is provided at the connection between one end of the valve handle 75 and the cable 74 , and a rotating head 741 matched with the connecting shaft 751 is provided at one end of the cable 74 .

[0030] Specifically, the end of the valve handle 75 is arc-shaped, the support body 76 is at least arranged above the middle of the valve handle 75, and the end of the support body 76 is arc-shaped, and the inner width of the fixing buckle 77 is at least greater than the width of the tail of the valve handle 75.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A stop valve quick switch device, characterized in that: The invention comprises a water inlet (2) and a water outlet (3) arranged at both ends of a T-shaped valve body (1); a valve cover (4) is also arranged above the T-shaped valve body (1); a fastening nut (5) is also arranged above the valve cover (4); a valve seat (6) is arranged inside the T-shaped valve body (1); a flow port (61) is opened on the valve seat (6); and a switch assembly (7) matched with the flow port (61) is also arranged inside the T-shaped valve body (1); The switch assembly (7) comprises a valve stem (71) arranged in a T-shaped valve body (1); one end of the valve stem (71) is connected to a valve flap (72), and the other end is connected to a fixing block (73); one end of the fixing block (73) is connected to a cable (74); one end of the cable (74) is connected to a valve handle (75); the switch assembly (7) further comprises a support body (76) mounted on the T-shaped valve body (1) and a fixing buckle (77) arranged on a side of the valve cover (4); the fixing buckle (77) acts on the valve handle (75); a compression spring (78) is further arranged on the outside of the valve stem (71); the compression spring (78) is mounted in the T-shaped valve body (1).

2. A stop valve fast switching device according to claim 1, characterized in that: The compression spring (78) is installed in the cavity of the T-type valve body (1), and a stopper (79) is provided on the valve stem (71) at the bottom of the compression spring (78). A sealing gasket (9) is provided at one end of the valve stem (71) where it is connected to the valve disc (72). The sealing gasket (9) is arranged in the T-type valve body (1) and is located below the valve cover (4).

3. A stop valve fast switching device according to claim 1, characterized in that: Sealing rings (8) are installed at the water inlet (2) and the water outlet (3), and the sealing rings (8) are provided with a plurality of mounting holes (81).

4. A stop valve fast switching device according to claim 1, characterized in that: A plurality of bolts (41) are installed on the valve cover (4); the plurality of bolts (41) are installed on the valve cover (4) at even intervals and are fixed on the T-shaped valve body (1).

5. A stop valve fast switching device according to claim 1, characterized in that: A connecting shaft (751) is provided at the connection point between one end of the valve handle (75) and the cable (74), and a rotating head (741) cooperating with the connecting shaft (751) is provided at one end of the cable (74).

6. A stop valve fast switching device according to claim 1, characterized in that: The end of the valve handle (75) is arc-shaped, the support body (76) is at least arranged above the middle of the valve handle (75), and the end of the support body (76) is arc-shaped, and the internal width of the fixing buckle (77) is at least greater than the width of the tail of the valve handle (75).

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