Self-operated balance valve with high sealing performance

Abstract

The self-operated balance valve with the high sealing performance comprises a valve body, a water inlet end is arranged on one side of the valve body, a water outlet end is arranged on the other side of the valve body, buffer grooves are formed in the outer sides of the water inlet end and the water outlet end, buffer gaskets are arranged in the buffer grooves, a sleeve is arranged at one end of the water inlet end, and a water control opening is formed in the top of the sleeve. The self-operated balance valve with the high sealing performance comprises a valve body, a valve clack assembly and a locking assembly, a water control opening is formed in the top of the valve body, a sealing ring is fixedly connected to the top of the water control opening, the middle of the top end of the valve body extends into a cavity to be provided with a hand wheel assembly, and the locking assembly is arranged in the hand wheel assembly. The service life of the valve can be prolonged by using a buffer structure of the device, parts of main parts are more convenient and quicker to disassemble and assemble through a new connecting mode, the sealing performance of the valve body can be greatly improved by additionally arranging sealing parts, and part of connecting materials are replaced by 304 stainless steel, so that disassembly and assembly difficulty caused by corrosion can be avoided.

Description

Technical Field

[0001] This utility model relates to the technical field of self-operated balancing valves, specifically a self-operated balancing valve with high sealing performance. Background Technology

[0002] The self-regulating balancing valve is an intuitive and simple flow regulation and control device. In pipeline networks, the flow rate can be directly set according to the design. Under the action of water, the valve automatically eliminates flow deviations caused by residual head and pressure fluctuations in the pipeline, maintaining a constant set flow rate regardless of system pressure changes. Current technology consists of two parts: manual and automatic adjustment. It includes structures such as a shut-off valve disc, valve stem, sealing ring, inlet, and outlet. The automatic adjustment structure can automatically adjust according to different external water pressures, always maintaining a constant flow rate. The adjustment of the constant flow rate is directly linked to the manual adjustment part; generally, one adjustment is sufficient for normal operation. Sealing rings are installed at the valve disc and some connections, providing a standard level of sealing performance. However, some shortcomings remain:

[0003] The service life of some parts needs to be improved, some parts are not easy to replace, and some parts are connected by large threads. However, the threads are more prone to corrosion when the parts are submerged in water for a long time. The large thread connection is also more inconvenient to disassemble.

[0004] Meanwhile, some buffer structures at the end connections are missing, the sealing structure is not perfect, and the lack of buffer design at the joints will cause the connection of the balance valve to be subjected to greater impact force, reducing the service life of related components of the balance valve. Utility Model Content

[0005] The purpose of this utility model is to provide a self-operated balancing valve with high sealing performance to solve the problems mentioned in the background art, such as the need to improve the service life of some parts, the easy corrosion of the threads of parts that are immersed in water for a long time, the inconvenience of disassembling large threaded connections, the lack of buffer structure at the end connection, the imperfect sealing structure, and the lack of buffer design at the joint, which will cause the connection of the balancing valve to be subjected to a large impact force, thus reducing the service life of the balancing valve and related components.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a self-operated balancing valve with high sealing performance, comprising a valve body, an inlet end on one side of the valve body, an outlet end on the other side of the valve body, a buffer groove on the outer side of both the inlet end and the outlet end, a buffer gasket inside the buffer groove, a sleeve at one end of the inlet end, a control port at the top of the sleeve, a sealing ring fixedly connected to the top of the control port, a handwheel assembly extending from the middle of the top of the valve body into the cavity, a valve disc assembly at the bottom of the handwheel assembly, and a locking assembly inside the handwheel assembly.

[0007] Preferably, the handwheel assembly includes an adjusting valve stem, one end of which is fixedly connected to an adjusting handwheel. A connecting frustum is fixedly connected to the bottom of the adjusting valve stem. Several arc-shaped slots are fixedly connected to the bottom of the connecting frustum. Multiple spring cavities are formed on the top of the connecting frustum. Each of the multiple spring cavities is equipped with a return spring. A vertical groove is formed on one side of the inner wall of each of the multiple spring cavities. The flow rate can be controlled by rotating the handwheel, and the flow rate per hour can be roughly calculated by the number of rotations, resulting in relatively accurate data.

[0008] Preferably, the valve assembly includes a flow valve and a buffer plate. A mounting rod is fixedly connected to the top of the flow valve, and multiple protrusions are fixedly connected to the top of the mounting rod. Each of the protrusions has a slot. A base plate is fixedly connected to the bottom of the flow valve, and multiple buffer springs are fixedly connected to the lower surface of the base plate. One end of each buffer spring is fixedly connected to the surface of the buffer plate. This helps to extend the service life of the valve. The valve is generally made of elastic rubber material and directly faces the fast-flowing water. The water also contains some impurities. Adding a buffer plate and buffer springs can prevent the water from directly impacting the valve and reduce the impact force of the water flow.

[0009] Preferably, the locking assembly includes a locking rod, one end of which is fixedly connected to a pull ring, a support rod is fixedly connected to one side of the surface of the locking rod, and a limiting ring is provided on the other side of the surface of the locking rod, which facilitates quick connection and disassembly of the valve disc assembly for replacement or repair of the valve disc assembly, making it convenient and quick.

[0010] Preferably, the locking assembly is made entirely of stainless steel, and the sealing ring is made of silicone, which helps to improve the service life of the equipment.

[0011] Preferably, the return spring is sleeved on the surface of the locking rod, the interior of the vertical groove is slidably connected to the support rod, the material of the return spring is stainless steel, one end of the return spring is in contact with the upper surface of the limiting ring, and the bottom of the spring cavity is in contact with the lower surface of the limiting ring.

[0012] Compared with the prior art, the beneficial effects of this utility model are: the use of the buffer structure can improve the service life of the valve; the main parts are more convenient and quick to disassemble and assemble through the new connection method; and the connection material is changed to stainless steel to avoid disassembly and assembly difficulties caused by rust.

[0013] Meanwhile, the use of buffer gaskets at the end connection can buffer and reduce the impact of water flow on the valve body connection, thereby reducing the impact at the connection and indirectly improving the sealing performance. Attached Figure Description

[0014] Figure 1 This is a structural diagram of the high-sealing self-operated balancing valve of this utility model;

[0015] Figure 2 This is a structural diagram of the handwheel assembly of the high-sealing self-operated balance valve of this utility model;

[0016] Figure 3 This is a structural diagram of the valve disc assembly of the high-sealing self-operated balancing valve of this utility model;

[0017] Figure 4 This is a structural diagram of the locking assembly of the high-sealing self-operated balancing valve of this utility model;

[0018] Figure 5 This is an enlarged view A of the structure of the high-sealing self-operated balancing valve of this utility model;

[0019] Figure 6 This is an enlarged view (B) of the structure of the handwheel assembly of the high-sealing self-operated balance valve of this utility model.

[0020] In the diagram: 1. Valve body; 2. Inlet; 3. Sealing ring; 4. Handwheel assembly; 41. Adjusting handwheel; 42. Adjusting valve stem; 43. Arc-shaped groove; 44. Connecting frustum; 45. Return spring; 46. Spring cavity; 47. Vertical groove; 5. Valve disc assembly; 51. Flow valve disc; 52. Mounting rod; 53. Slot; 54. Base plate; 55. Buffer spring; 56. Buffer plate; 57. Protrusion; 6. Outlet; 7. Locking assembly; 71. Locking rod; 72. Limiting ring; 73. Support rod; 74. Pull ring; 8. Buffer groove; 9. Buffer gasket; 10. Water control port; 11. Sleeve. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0022] Please see Figure 1-6This utility model provides a self-regulating balancing valve with high sealing performance, including a valve body 1, an inlet end 2 on one side of the valve body 1, an outlet end 6 on the other side of the valve body 1, a buffer groove 8 on the outer side of both the inlet end 2 and the outlet end 6, a buffer gasket 9 inside the buffer groove 8, a sleeve 11 at one end of the inlet end 2, a control port 10 at the top of the sleeve 11, a sealing ring 3 fixedly connected to the top of the control port 10, a handwheel assembly 4 extending from the middle of the top of the valve body 1 into the cavity, a valve disc assembly 5 at the bottom of the handwheel assembly 4, and a locking assembly 7 inside the handwheel assembly 4.

[0023] See Figure 1-4 Furthermore, the handwheel assembly 4 includes an adjusting valve stem 42, one end of which is fixedly connected to an adjusting handwheel 41. A connecting frustum 44 is fixedly connected to the bottom of the adjusting valve stem 42. Several arc-shaped slots 43 are fixedly connected to the bottom of the connecting frustum 44. Multiple spring cavities 46 are formed on the top of the connecting frustum 44. Each of the multiple spring cavities 46 contains a return spring 45. A vertical groove 47 is formed on one side of the inner wall of each of the multiple spring cavities 46. The valve disc assembly 5 includes a flow valve disc 51 and a buffer plate 56. The top of the flow valve disc 51 is fixedly connected to... There is an installation rod 52, and multiple protrusions 57 are fixedly connected to the top of the installation rod 52. Each of the multiple protrusions 57 has a slot 53 in its cavity. A base plate 54 is fixedly connected to the bottom of the flow valve disc 51. Multiple buffer springs 55 are fixedly connected to the lower surface of the base plate 54. One end of each of the multiple buffer springs 55 is fixedly connected to the surface of the buffer plate 56. The locking assembly 7 includes a locking rod 71. A pull ring 74 is fixedly connected to one end of the locking rod 71. A support rod 73 is fixedly connected to one side of the surface of the locking rod 71. A limiting ring 72 is provided on the other side of the surface of the locking rod 71.

[0024] In use, the protrusion 57 on the end of the mounting rod 52 is rotated and inserted into the inner cavity of the arc-shaped slot 43. At this time, the round end of the locking rod 71 slides upward under the force of the protrusion 57, thereby compressing the return spring 45 driven by the limiting ring 72. When the slot 53 is rotated to directly below the locking rod 71, the locking rod 71 is inserted into the inner cavity of the slot 53, and the valve assembly 5 is locked. For disassembly, simply lift the locking assembly 7 slightly upward, and the locking rod 71 slides upward, thereby allowing the support rod 73 to slide in the vertical slot 4. Slide the internal part of 7 upwards, and the round end of the locking rod 71 disengages from the slot 53. After raising the support rod 73 to the upper surface of the connecting frustum 44, rotate the pull ring 74. This causes the locking rod 71 to engage with the support rod 73 on the upper surface of the connecting frustum 44. The other locking components 7 are operated in the same way. After all the round ends of the locking rods 71 ​​disengage from the slots 53, the valve disc assembly 5 can be unscrewed. This is convenient and quick. After installation, when in use, water flows through the control port 10, and the water flow... The impact on the buffer plate 56, and the compression of the buffer spring 55, can reduce the impact of the water flow on the valve disc assembly 5 and the overall structure. At the same time, the presence of the bottom plate 54 is to prevent impurities in the water from directly impacting the bottom of the flow valve disc 51. Wear of the flow valve disc 51 is not conducive to the sealing of the control port 10, which in turn affects the accuracy of the handwheel assembly 4 in controlling the water volume. The sealing ring 3 is made of silicone, which is more durable and pressure resistant than traditional rubber. When the flow valve disc 51 blocks the control port 10, it will form a closed structure with the sealing ring 3. This can enhance the sealing at this point and reduce the wear caused by the flow valve disc 51 directly contacting the valve, thereby improving the sealing performance and service life. The use of the buffer groove 8 and the buffer gasket 9 can reduce the impact force on the end connection when connecting the end, thereby improving the service life of the valve. The locking assembly 7 is made of 304 stainless steel, and the return spring 45 is also made of 304 stainless steel.

[0025] In this embodiment, when the valve is open, water flows from the inlet 2 into the valve body 1 and through the control port 10 to the outlet 6. At this time, the water flow impacts the buffer plate 56, and the buffer spring 55 is compressed to reduce the impact force, thereby protecting the flow valve disc 51 and improving its durability. When the valve is closed, the flow valve disc 51 contacts the sealing ring 3 to form a sealing structure, blocking the water flow at the control port 10. The sealing ring 3, in conjunction with the flow valve disc 51, improves the sealing performance and prevents direct contact between the flow valve disc 51 and the inner wall of the valve body 1, reducing wear on the flow valve disc 51. When the valve disc assembly 5 needs to be replaced, it is necessary to disassemble and reassemble it. Rotate the protrusion 57 on the end of the mounting rod 52 into the arc-shaped groove 43, and insert the locking rod 71 into the cavity of the slot 53. When disassembling, simply lift the locking component 7 slightly upward, and the locking rod 71 will slide upward. Then, the support rod 73 will slide upward inside the vertical groove 47, and the round end of the locking rod 71 will be released from the slot 53. After lifting the support rod 73 to the upper surface of the connecting frustum 44, rotate the pull ring 74, and the locking rod 71 will drive the support rod 73 to lock onto the upper surface of the connecting frustum 44. The other locking components 7 are operated in the same way. After the round ends of all locking rods 71 ​​are released from the slot 53, the valve disc component 5 can be unscrewed, which is convenient and quick.

[0026] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A self-operated balancing valve with high sealing performance, comprising a valve body (1), characterized in that: The valve body (1) has an inlet end (2) on one side and an outlet end (6) on the other side. Both the inlet end (2) and the outlet end (6) have buffer grooves (8) on their outer sides. The buffer grooves (8) have buffer pads (9) inside. One end of the inlet end (2) has a sleeve (11). The top of the sleeve (11) has a water control port (10). The top of the water control port (10) is fixedly connected to a sealing ring (3). The middle part of the top of the valve body (1) extends into the cavity and has a handwheel assembly (4). The bottom of the handwheel assembly (4) has a valve disc assembly (5). The inside of the handwheel assembly (4) has a locking assembly (7).

2. The self-operated balancing valve with high sealing performance according to claim 1, characterized in that: The handwheel assembly (4) includes an adjusting valve rod (42), one end of which is fixedly connected to an adjusting handwheel (41). A connecting frustum (44) is fixedly connected to the bottom of the adjusting valve rod (42). Several arc-shaped slots (43) are fixedly connected to the bottom of the connecting frustum (44). Multiple spring cavities (46) are opened on the top of the connecting frustum (44). Each of the multiple spring cavities (46) is provided with a return spring (45). A vertical groove (47) is opened on one side of the inner wall of each of the multiple spring cavities (46).

3. The self-operated balancing valve with high sealing performance according to claim 1, characterized in that: The valve assembly (5) includes a flow valve (51) and a buffer plate (56). A mounting rod (52) is fixedly connected to the top of the flow valve (51). A plurality of protrusions (57) are fixedly connected to the top of the mounting rod (52). Slots (53) are provided in the cavities of the plurality of protrusions (57). A base plate (54) is fixedly connected to the bottom of the flow valve (51). A plurality of buffer springs (55) are fixedly connected to the lower surface of the base plate (54). One end of each of the plurality of buffer springs (55) is fixedly connected to the surface of the buffer plate (56).

4. The self-operated balancing valve with high sealing performance according to claim 1, characterized in that: The locking assembly (7) includes a locking rod (71), one end of which is fixedly connected to a pull ring (74), a support rod (73) is fixedly connected to one side of the surface of the locking rod (71), and a limiting ring (72) is provided on the other side of the surface of the locking rod (71).

5. A self-operated balancing valve with high sealing performance according to claim 3, characterized in that: The inner cavity of the slot (53) is engaged with one end of the locking rod (71), the surface of the flow valve disc (51) is in contact with the surface of the sealing ring (3), and the surface of the protrusion (57) is in contact with the inner cavity of the arc-shaped groove (43).

6. A self-operated balancing valve with high sealing performance according to claim 1, characterized in that: The locking component (7) is made entirely of 304 stainless steel, and the sealing ring (3) is made of silicone.

7. A self-operated balancing valve with high sealing performance according to claim 2, characterized in that: The return spring (45) is sleeved on the surface of the locking rod (71), the interior of the vertical groove (47) is slidably connected to the support rod (73), the material of the return spring (45) is 304 stainless steel, one end of the return spring (45) is in contact with the upper surface of the limiting ring (72), and the bottom of the spring cavity (46) is in contact with the lower surface of the limiting ring (72).

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