Rising stem gate valve with waterproof hammer function
By using a baffle structure driven by worm gear and worm, the rubber layer and Z-shaped water passages are used to block the water hammer, the problem of water hammer effect when the existing open rod gate valve is closed is solved, and the use of the valve is improved Lifespan and fluid passage efficiency.
Patent Information
- Application Number
- CN202420946006.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-06
- Publication Date
- 2024-12-31
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The existing open rod gate valve is prone to water hammer effect when closed, resulting in damage to the valve plate and affecting its service life.
A open rod gate valve with waterproof hammer function is designed, using worm gear and worm rotating device to drive the baffle to rotate. The baffle is equipped with a rubber layer and a Z-shaped water passage. The baffle blocks the water hammer when the valve is closed to avoid The water hammer directly hits the valve plate.
Effectively prevent water hammers from hitting the valve plate, extend the service life of the valve, and return to position when opened to avoid affecting the water flow.
Smart Images
Figure CN222277652U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of valves, in particular to a rising stem gate valve with a water hammer prevention function. Background Art
[0002] With the development of society, pipeline connection is needed in both production and life. In pipeline connection, pipeline connectors are needed, among which rising stem gate valve is one of the commonly used pipeline connectors. The existing rising stem gate valve will produce water hammer effect when closing, and the water hammer will hit the valve plate and damage the valve plate, thereby affecting the service life of the valve. In order to solve this problem, the utility model is produced. Utility Model Content
[0003] Therefore, in view of the above problems, the utility model proposes a rising stem gate valve with anti-water hammer function which has a simple structure and can prevent the water hammer effect, thereby protecting the valve plate and increasing the service life of the valve.
[0004] In order to solve the above technical problems, the solution adopted by the utility model is: a rising-stem gate valve with anti-water hammer function, comprising a valve body, a valve cover arranged on the valve body, a water inlet channel and a water outlet channel radially opened along the valve body, a valve plate arranged between the water inlet channel and the water outlet channel for controlling the opening and closing of the fluid, and a fixed rod, the valve body is provided with a valve stem, one end of the valve stem is connected to the valve plate, and the other end of the valve stem passes through the valve cover, the fixed rod is fixedly passed through the valve body and one end of the fixed rod is located in the water inlet channel, a rotating notch is opened at the end of the fixed rod, a connecting rod is arranged in the rotating notch through the rotating rod, a baffle for blocking water hammer is provided on the connecting rod, and a rotating device for driving the rotating rod to rotate is provided on the valve body.
[0005] A further improvement is that the rotating device includes a worm wheel and a worm, a driving channel is opened in the fixed rod, one end of the rotating rod is located in the driving channel, the worm wheel is sleeved on the rotating rod and is linked to the rotating rod and is located in the driving channel, the worm is passed through the fixed rod, one end of the worm is engaged with the worm wheel for transmission, and the other end of the worm passes through the fixed rod.
[0006] A further improvement is that an elastic layer is provided on the baffle.
[0007] A further improvement is that a Z-shaped water passage is provided on the baffle.
[0008] A further improvement is that the elastic layer is a rubber layer.
[0009] A further improvement is that a hand wheel is provided on the worm outside the valve body.
[0010] By adopting the above technical solution, the beneficial effects of the utility model are:
[0011] The structure is simple, with the function of preventing water hammer, and can protect the valve plate. By rotating the baffle, it can block the water hammer when the valve is closed, preventing the water hammer from directly hitting the valve plate and making the valve plate easily penetrated, which is beneficial to prolonging the service life of the valve. When the valve is opened, the baffle returns to a position perpendicular to the water flow, preventing the baffle from blocking the water flow and affecting the water flow, which is beneficial to the use of the valve. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 The utility model is a schematic diagram of the cutaway structure of a rising stem gate valve with a water hammer prevention function according to an embodiment of the utility model.
[0013] Figure 2 It is a schematic diagram of the structure of the rotating device of the utility model embodiment.
[0014] Figure 3 It is a schematic diagram of the cutaway structure of the baffle of an embodiment of the utility model. DETAILED DESCRIPTION
[0015] The utility model is now further described in conjunction with the accompanying drawings and specific embodiments.
[0016] refer to Figure 1-3The embodiment of the utility model discloses: a rising stem gate valve with anti-water hammer function, comprising a valve body 1, a valve cover arranged on the valve body 1, a water inlet channel 2 and a water outlet channel radially opened in the valve body 1, a valve plate arranged between the water inlet channel 2 and the water outlet channel for controlling the opening and closing of the fluid, and a fixed rod 5, wherein a valve stem is arranged on the valve body 1, one end of the valve stem is connected to the valve plate, and the other end of the valve stem passes through the valve cover, the fixed rod 5 is fixedly penetrated on the valve body 1 and one end of the fixed rod 5 is located in the water inlet channel 2, and a rotation notch is opened at the end of the fixed rod 5, The rotating notch is provided with a connecting rod 4 through a rotating rod 6, and a baffle 3 for blocking water hammer is provided on the connecting rod 4, and a worm wheel 8 and a worm 7 for driving the rotating rod 6 to rotate are provided on the valve body 1, and a driving channel is opened in the fixed rod 5, one end of the rotating rod 6 is located in the driving channel, and the worm wheel 8 is sleeved on the rotating rod 6 and linked with the rotating rod 6 and located in the driving channel, and the worm 7 is penetrated on the fixed rod 5, and one end of the worm 7 is meshed with the worm wheel 8 for transmission, and the other end of the worm 7 penetrates the fixed rod 5. When the valve is used, the worm 7 is rotated first, the worm 7 drives the worm wheel 8 to rotate, the worm wheel 8 drives the rotating rod 6 to rotate, the rotating rod 6 drives the connecting rod 4 to rotate, and the connecting rod 4 drives the baffle 3 to rotate, so that the baffle 3 is perpendicular to the water flow, and then the valve is closed, and the water hammer enters the water inlet channel 2 and hits the baffle 3, thereby eliminating the water hammer, so that the water hammer will not directly hit the valve plate and make the valve plate easily penetrated, which is beneficial to improve the service life of the valve. When the valve is opened, the worm screw 7 is reversed to return the baffle plate 3 to a position perpendicular to the water flow, so as to prevent the baffle plate 3 from blocking the water flow and affecting the water flow.
[0017] In order to protect the baffle plate 3 , a rubber layer 9 is provided on the baffle plate 3 .
[0018] In order to further eliminate the hammer, a Z-shaped water passage 10 is provided on the baffle 3. The water hammer hits the baffle 3, enters the water passage 10, and flows out from the inside, so that the baffle 3 will not resist the water hammer, and the service life of the baffle 3 is further improved.
[0019] In order to facilitate the rotation of the worm 7 , a hand wheel is provided on the worm 7 outside the valve body 1 .
[0020] The basic principles, main features and advantages of the utility model are shown and described above. Those skilled in the art should understand that the utility model is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which shall fall within the scope of the utility model to be protected. The scope of protection of the utility model shall be defined by the attached claims and their equivalents.
Claims
1. A rising stem gate valve with anti-water hammer function, comprising a valve body, a valve cover arranged on the valve body, a water inlet channel and a water outlet channel opened radially along the valve body, and a valve plate arranged between the water inlet channel and the water outlet channel for controlling the opening and closing of the fluid, wherein a valve stem is arranged on the valve body, one end of the valve stem is connected to the valve plate, and the other end of the valve stem passes through the valve cover, characterized in that: It also includes a fixing rod, which is fixedly inserted into the valve body and one end of the fixing rod is located in the water inlet channel. A rotation notch is opened at the end of the fixing rod. A connecting rod is arranged in the rotation notch through the rotating rod. A baffle for blocking water hammer is arranged on the connecting rod. A rotating device for driving the rotating rod to rotate is arranged on the valve body.
2. A rising stem gate valve with anti-water hammer function according to claim 1, characterized in that: The rotating device includes a worm wheel and a worm, a driving channel is opened in the fixed rod, one end of the rotating rod is located in the driving channel, the worm wheel is sleeved on the rotating rod and linked to the rotating rod and is located in the driving channel, the worm is passed through the fixed rod, one end of the worm is meshed with the worm wheel for transmission, and the other end of the worm passes through the fixed rod.
3. A rising stem gate valve with anti-water hammer function according to claim 1, characterized in that: An elastic layer is arranged on the baffle.
4. A rising stem gate valve with anti-water hammer function according to claim 1, characterized in that: A Z-shaped water passage is provided on the baffle.
5. A rising stem gate valve with anti-water hammer function according to claim 3, characterized in that: The elastic layer is a rubber layer.
6. A rising stem gate valve with anti-water hammer function according to claim 2, characterized in that: A hand wheel is arranged on the worm outside the valve body.