Soft seal ball valve

Abstract

The utility model provides a soft sealing ball valve, which belongs to the field of ball valves, and comprises a ball valve body, a water inlet pipe and a water outlet pipe are respectively fixedly connected with two sides of the ball valve body, internal thread grooves are arranged on the water inlet pipe and the water outlet pipe, support components are arranged on the two internal thread grooves, a pressure reducing component is arranged on the water inlet pipe, and the pressure reducing component is arranged on the water outlet pipe. And the pressure reduction assembly comprises a connecting frame penetrating through the water inlet pipe in a sliding mode, a throttling orifice plate is installed on the connecting frame, a rotating cavity is formed in the water inlet pipe, and a rotating rod and two threaded rods are rotationally connected to the inner wall of the rotating cavity. The flow of fluid in the water inlet pipe is controlled and the pressure is reduced by using the throttling orifice plate convenient to mount and dismount, so that the impact force of the fluid to the interior of the ball valve body is reduced, internal elements of the ball valve body are prevented from being damaged, the service life of the device is prolonged, and the device is supported by using the mutual matching of the bottom plate, the fixed cylinder and the lifting rod; and the stability of the ball valve body is improved.

Description

Technical Field

[0001] This utility model relates to the field of ball valve technology, and in particular to a soft-seal ball valve. Background Technology

[0002] Ball valves are mainly composed of a valve body, a ball, a sealing device, and an actuator. Among them, soft-seal ball valves are a type of valve that achieves sealing through elastic soft materials. They have various characteristics such as low fluid resistance, simple structure, small size, light weight, and convenient operation.

[0003] Existing soft-seal ball valves mainly use soft materials for their valve balls. When conveying fluid, the high-speed fluid directly impacts the sealing surface of the valve ball, which can easily damage the sealing surface, affect the valve's sealing performance, and significantly reduce the service life of the valve ball. Furthermore, soft-seal ball valves are not precise enough in terms of flow regulation. Utility Model Content

[0004] In view of the shortcomings of the existing technology, this utility model provides a soft-seal ball valve.

[0005] An embodiment of this utility model provides a soft-seal ball valve, comprising:

[0006] A ball valve body has an inlet pipe and an outlet pipe fixedly connected to both sides. Both the inlet and outlet pipes have internal threaded grooves, and support assemblies are installed on both internal threaded grooves. A pressure-reducing assembly is installed on the inlet pipe, including a connecting frame that slides through the inlet pipe. A throttling orifice plate is installed on the connecting frame. A rotating cavity is formed in the inlet pipe, and a rotating rod and two threaded rods are rotatably connected to the inner wall of the rotating cavity. Two first sprockets are fixedly connected to the rotating rod, and the two threaded rods are... A second sprocket is fixedly connected to each of the two first sprockets and the two second sprockets. Each pair of first sprockets and second sprockets is driven by a chain. Limiting blocks are threadedly connected to the two threaded rods. The two limiting blocks slide through the water inlet pipe. Limiting grooves are opened on both sides of the connecting frame. The two limiting blocks match the two limiting grooves respectively. The lower inner walls of the two limiting grooves are inclined. A connecting rod rotatably passes through the water inlet pipe. One end of the connecting rod is fixedly connected to one of the threaded rods.

[0007] Furthermore, the support assembly includes a fixing bolt threaded into an internal thread groove, a lifting rod rotatably connected to the fixing bolt, a fixing cylinder slidably connected to the lifting rod, a base plate fixedly connected to the lower end face of the fixing cylinder, and a limit bolt threaded through the fixing cylinder.

[0008] Furthermore, both of the bottom surfaces of the base plates are provided with anti-slip textures.

[0009] Furthermore, a handle is fixedly connected to the connecting rod, and the handle is provided with an anti-slip pad layer.

[0010] Furthermore, the side wall of the connecting frame is provided with a sealing gasket layer, the sealing gasket layer is made of rubber, and a handle is fixedly connected to the upper end face of the connecting frame.

[0011] Furthermore, both ends of the inlet pipe and outlet pipe are fixedly connected with fixed flanges.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. The flow rate and pressure of the fluid in the inlet pipe are controlled by the orifice plate, thereby reducing the impact force of the fluid on the inside of the ball valve body, avoiding damage to the internal components of the ball valve body, and extending the service life of the device. Furthermore, the limit block can be moved by rotating the handle, which makes it easy for users to install and remove the orifice plate, thus improving the portability of the device.

[0014] 2. Installing the fixing bolts in the internal thread groove allows the base plate, fixing cylinder, and lifting rod to support the device, improving the stability of the ball valve body. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of a soft-seal ball valve described in an embodiment of the present utility model.

[0016] Figure 2 This is a three-dimensional sectional view of a soft-seal ball valve structure as described in an embodiment of this utility model.

[0017] Figure 3 This is a three-dimensional sectional view of a soft-seal ball valve as described in an embodiment of this utility model.

[0018] In the above attached figures: 1 ball valve body, 2 inlet pipe, 3 connecting bracket, 4 throttling orifice plate, 5 rotating cavity, 6 rotating rod, 7 threaded rod, 8 second sprocket, 9 chain, 10 limiting block, 11 limiting groove, 12 fixing bolt, 13 lifting rod, 14 fixing cylinder, 15 base plate, 16 handle. Detailed Implementation

[0019] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0020] like Figures 1-3 As shown, this utility model embodiment proposes a soft-seal ball valve, comprising:

[0021] The ball valve body 1 is a prior art technology. It controls the flow of fluid by rotating the ball. The 90-degree rotation of the central through hole of the ball can achieve full opening, full closing or partial throttling, which will not be described in detail here. The ball valve body 1 is fixedly connected to the inlet pipe 2 and the outlet pipe on both sides respectively. The inlet pipe 2 and the outlet pipe are fixedly connected to the two ends of the fixed flange. The inlet pipe 2 and the outlet pipe are both opened with internal thread grooves. Support components are installed on both internal thread grooves. The pressure reducing component is installed on the inlet pipe 2. The pressure reducing component includes a connecting frame 3 that slides through the inlet pipe 2. The side wall of the connecting frame 3 is provided with a sealing gasket. The sealing gasket is made of rubber, which improves the sealing between the connecting frame 3 and the inlet pipe 2 and prevents fluid from overflowing. The upper end face of the connecting frame 3 is fixedly connected to a handle, which makes it easy for the user to pull out the connecting frame 3 and improves the portability of the device.

[0022] A throttling orifice plate 4 is installed on the connecting frame 3. The throttling orifice plate 4 is existing technology and is a device used for pipeline fluid control. It creates a throttling effect by setting a circular plate with a sharp-edged hole in the pipeline, causing the fluid to pass through the hole. This reduces fluid pressure, energy loss, and flow rate, thus mitigating flow fluctuations. Further details are omitted here. A rotating cavity 5 is opened on the inlet pipe 2. A rotating rod 6 and two threaded rods 7 are rotatably connected to the inner wall of the rotating cavity 5. Two first sprockets are fixedly connected to the rotating rod 6, and second sprockets 8 are fixedly connected to the two threaded rods 7 respectively. The two first sprockets and two second sprockets... Each pair of first and second sprockets 8 are connected by a chain 9. Each of the two threaded rods 7 is threaded with a limit block 10. Both limit blocks 10 slide through the water inlet pipe 2. Limit grooves 11 are opened on both sides of the connecting frame 3. The two limit blocks 10 are matched with the two limit grooves 11 respectively. The lower inner walls of the two limit grooves 11 are inclined. A connecting rod is rotatably passed through the water inlet pipe 2. One end of the connecting rod is fixedly connected to one of the threaded rods 7. A handle 16 is fixedly connected to the connecting rod. The handle 16 is provided with an anti-slip pad to facilitate the user to rotate the connecting rod and improve the portability of the device.

[0023] The support assembly includes a fixing bolt 12 threaded into an internal thread groove, a lifting rod 13 rotatably connected to the fixing bolt 12, a fixing cylinder 14 slidably connected to the lifting rod 13, a base plate 15 fixedly connected to the lower end face of the fixing cylinder 14, a limit bolt threaded through the fixing cylinder 14, and anti-slip textures on the lower end faces of both base plates 15, which increases the friction between the base plate 15 and the support surface and improves the stability of the device.

[0024] The detailed working process of this utility model is as follows:

[0025] The flow rate and pressure of the fluid in the inlet pipe 2 are controlled by the orifice plate 4, thereby reducing the impact force of the fluid on the internal components of the ball valve body 1, preventing damage to the internal components of the ball valve body 1, and extending the service life of the device. After a period of use, the orifice plate 4 needs to be cleaned and replaced. When the user rotates the handle 16, the threaded rod 7 begins to rotate under the transmission of the first sprocket, the second sprocket 8, and the chain 9, causing the limit block 10 to slide out of the limit groove 11. The user can then pull out the connecting bracket 3. When the connecting bracket 3 needs to be installed, the user inserts the connecting bracket 3 into the inlet pipe 2 and then rotates the handle 16. This allows the limiting block 10 to move into the limiting groove 11. When the limiting block 10 contacts the inner wall of the limiting groove 11, the lower inner wall of the limiting groove 11 is inclined, and the limiting block 10 will exert downward pressure on the connecting frame 3 during the movement, thereby improving the sealing performance of the connecting frame 3 and the water inlet pipe 2. The user can easily install and disassemble the throttling orifice plate 4, improving the portability of the device. Then, the device is installed in the designated position, and the fixing bolt 12 is installed in the internal thread groove. Then, the lifting rod 13 and the fixing cylinder 14 are adjusted and fixed with the limiting bolt, so that the base plate 15, the fixing cylinder 14 and the lifting rod 13 can support the device, improving the stability of the ball valve body 1.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A soft-seal ball valve, characterized in that, include: A ball valve body (1) is provided, with an inlet pipe (2) and an outlet pipe fixedly connected to both sides of the ball valve body (1). Both the inlet pipe (2) and the outlet pipe have internal threaded grooves, and support components are installed on both internal threaded grooves. A pressure reducing component is installed on the inlet pipe (2), which includes a connecting frame (3) that slides through the inlet pipe (2). A throttling orifice plate (4) is installed on the connecting frame (3). A rotating cavity (5) is provided on the inlet pipe (2), and a rotating rod (6) and two threaded rods (7) are rotatably connected to the inner wall of the rotating cavity (5). Two first sprockets are fixedly connected to the rotating rod (6), and the two threaded rods (7) are respectively fixedly connected to the first sprockets. A second sprocket (8) is fixedly connected. The two first sprockets and the two second sprockets (8) correspond one-to-one. Each pair of first sprockets and second sprockets (8) is driven by a chain (9). Limiting blocks (10) are threadedly connected to the two threaded rods (7). The two limiting blocks (10) slide through the water inlet pipe (2). Limiting grooves (11) are opened on both sides of the connecting frame (3). The two limiting blocks (10) match the two limiting grooves (11) respectively. The lower inner walls of the two limiting grooves (11) are inclined. A connecting rod is rotatably passed through the water inlet pipe (2). One end of the connecting rod is fixedly connected to one of the threaded rods (7).

2. A soft-seal ball valve according to claim 1, characterized in that: The support assembly includes a fixing bolt (12) threaded in an internal thread groove, a lifting rod (13) rotatably connected to the fixing bolt (12), a fixing cylinder (14) slidably connected to the lifting rod (13), a base plate (15) fixedly connected to the lower end face of the fixing cylinder (14), and a limit bolt threaded through the fixing cylinder (14).

3. A soft-seal ball valve according to claim 2, characterized in that: Both of the base plates (15) have anti-slip textures on their lower surfaces.

4. A soft-seal ball valve according to claim 1, characterized in that: A handle (16) is fixedly connected to the connecting rod, and the handle (16) is provided with an anti-slip pad layer.

5. A soft-seal ball valve according to claim 1, characterized in that: The side wall of the connecting frame (3) is provided with a sealing gasket layer, the sealing gasket layer is made of rubber, and a handle is fixedly connected to the upper end face of the connecting frame (3).

6. A soft-seal ball valve according to claim 1, characterized in that: Both ends of the inlet pipe (2) and the outlet pipe are fixedly connected with fixed flanges.

Images