Groove rising stem gate valve
By introducing protective covers and anti-disassembly devices into the gate valve, the problem of rust and dust adhesion of gate valves after wind, sun and rain is solved, the service life is extended, and the heating pipes and fans are accelerated to dry, achieving long-term reliability of gate valves Sex and safety.
Patent Information
- Application Number
- CN202420094211.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-15
- Publication Date
- 2025-01-14
- Estimated Expiration
- 2034-01-15
AI Technical Summary
The existing grooved open rod gate valves are prone to rust after wind, sun and rain, and dust cover affects opening and closing, resulting in a shortening of service life.
A gate valve is designed including a protective cover and an anti-detachment device. The protective cover prevents rust and dust from adhering through sealing grooves and anti-detachment rods, and accelerates drying through heating pipes and fans. The anti-detachment device prevents illegal removal through sliding and spring mechanisms. Protective cover.
Effectively prevent valve stem corrosion and dust adhesion, extend service life, and prevent non-workers from random operation through encrypted design, improving the reliability of gate valves for long-term use.
Smart Images
Figure CN222351484U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of valves, in particular to a grooved rising-stem gate valve. Background Art
[0002] The gate valve's opening and closing part is the gate, and the gate's movement direction is perpendicular to the fluid direction, which can be used for adjustment and throttling. Among them, the grooved rising stem gate valve is a commonly used pipe connection in pipeline connection. Although the existing grooved rising stem gate valve can meet the use requirements, after the gate valve is installed, due to wind, sun and rain, the valve stem will rust, and dust will also cover between the valve cover and the valve stem, affecting the opening and closing of the valve stem, which is not conducive to the long-term use of the valve.
[0003] In order to solve this problem, the present utility model is produced. Utility Model Content
[0004] Therefore, in view of the above problems, the utility model proposes a grooved rising stem gate valve which has a simple structure, a protective function and can increase the service life.
[0005] In order to solve the above technical problems, the solution adopted by the utility model is: a grooved rising stem gate valve, 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, and a valve plate arranged between the water inlet channel and the water outlet channel, the valve body is provided with a valve stem, one end of the valve stem is connected to the valve plate, and a protective cover, a sealing groove is opened around the valve cover, the protective cover is arranged in the sealing groove to cover the valve stem, and the valve cover is provided with an anti-detachment device to prevent the protective cover from detaching from the valve cover.
[0006] A further improvement is that the anti-slip device includes an anti-slip rod, the protective cover is provided with an anti-slip groove at the sealing groove position, the anti-slip rod is slidably arranged in the valve cover, and the valve cover is provided with a sliding device for pushing the anti-slip rod to slide into or out of the anti-slip groove.
[0007] Further improvements are: the sliding device includes a limit block, a first channel is opened in the valve cover, the anti-dropout rod is located in the first channel, the limit block is arranged on the anti-dropout rod and is located in the first channel, the first channel is provided with a push device for pushing the limit block so that the anti-dropout rod slides into the anti-dropout groove, and the valve cover is also provided with a return device for returning the limit block.
[0008] A further improvement is that the abutting device includes a abutting block arranged in a conical shape, a screw rod is threadedly passed through the lower end of the valve cover, one end of the screw rod is located in the first channel, the abutting block is arranged on the screw rod, and the limit block resists the abutting block.
[0009] A further improvement is that the return device comprises a spring, the spring is sleeved on the anti-drop rod, one end of the spring resists the inner wall of the first channel, and the other end of the spring resists the limit block.
[0010] A further improvement is that the limit block is arranged in a spherical shape on the contact surface with the abutting block.
[0011] A further improvement is that a heating pipe is provided inside the protective cover above the valve stem, and a blowing device for blowing hot air downward is provided at the upper end of the protective cover.
[0012] A further improvement is that the blowing device is a fan.
[0013] A further improvement is that a hand wheel is provided on the screw rod.
[0014] By adopting the above technical solution, the beneficial effects of the utility model are:
[0015] The structure is simple, with protective functions, and can increase the service life. The protective cover can protect the valve stem from wind, sun, rain, and corrosion, and will not cause dust to adhere to the valve stem and affect the operation of the valve stem, which is conducive to increasing the service life of the valve. The anti-drop device prevents children or non-staff from removing the protective cover without knowing the operation, which is not only conducive to the long-term use of the protective cover, but also has a certain degree of encryption to prevent others from randomly operating the gate valve. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a structural schematic diagram of a grooved rising stem gate valve according to an embodiment of the utility model.
[0017] Figure 2 It is a schematic diagram of the enlarged structure of point A in the embodiment of the utility model. DETAILED DESCRIPTION
[0018] The utility model is now further described in conjunction with the accompanying drawings and specific embodiments.
[0019] refer to Figure 1-2The embodiment of the utility model discloses: a grooved rising stem gate valve, comprising a valve body 1, a valve cover 5 arranged on the valve body 1, a water inlet channel 2 and a water outlet channel 3 radially opened in the valve body 1, a valve plate 4 arranged between the water inlet channel 2 and the water outlet channel 3, a protective cover 7, and an anti-dropout rod 12, wherein a valve stem 6 is arranged on the valve body 1, one end of the valve stem 6 is connected to the valve plate 4, a sealing groove 10 is opened around the valve cover 5, the protective cover 7 is arranged in the sealing groove 10 to cover the valve stem 6, the protective cover 7 is located at the sealing groove 10 and has an anti-dropout groove, and the anti-dropout rod 12 It is slidably arranged in the valve cover 5, and a first channel 11 is opened in the valve cover 5. The anti-dropout rod 12 is located in the first channel 11. A limit block 13 is provided on the anti-dropout rod 12 and is located in the first channel 11. A push device for pushing against the limit block 13 so that the anti-dropout rod 12 slides into the anti-dropout groove is provided in the first channel 11. A spring for returning the limit block 13 is also provided in the valve cover 5. The spring is sleeved on the anti-dropout rod 12, one end of the spring resists the inner wall of the first channel 11, and the other end of the spring resists the limit block 13.
[0020] Specifically, the push-up device includes a push-up block 14 which is conically arranged, a screw rod 15 is threadedly penetrated through the lower end of the valve cover 5, one end of the screw rod 15 is located in the first channel 11, the push-up block 14 is arranged on the screw rod 15, the limit block 13 resists the push-up block 14, and the limit block 13 is spherically arranged on the contact surface with the push-up block 14.
[0021] When the gate valve is installed on the pipeline for use, the protective cover 7 is covered in the sealing groove 10, and then the screw 15 is rotated, the screw 15 is pushed upward, driving the top block 14 to push upward, the top block 14 pushes the limit block 13 to slide, and the limit block 13 pushes the anti-slip rod 12 to slide into the anti-slip groove, so that the anti-slip rod 12 is engaged with the anti-slip groove, thereby preventing the protective cover 7 from detaching from the valve cover 5, and the spring is compressed at this time. When the gate valve is to be opened or closed, the screw 15 is reversed to return the top block 14, the spring releases the elastic force, and pushes the limit block 13 back to the position, thereby driving the anti-slip rod 12 to slide out of the anti-slip groove, and then the protective cover 7 is taken out, and then the gate valve is operated. The protective cover 7 can protect the valve stem 6 from wind, sun and rain, thereby preventing the valve stem 6 from rusting, and will not cause dust to adhere to the valve stem 6 and affect the operation of the valve stem 6, which is conducive to improving the service life of the valve. The anti-drop device can prevent the protective cover 7 from being removed by children or non-staff without the knowledge of the operation, which is not only conducive to the long-term use of the protective cover 7, but also has a certain encryption to prevent others from randomly operating the gate valve.
[0022] In order to further prevent the valve stem 6 from rusting and further improve the service life of the valve, a heating pipe 8 is provided inside the protective cover 7 above the valve stem 6, and a fan 9 for blowing hot air downward is provided at the upper end of the protective cover 7. When there is water on the opening and closing gate valve or the valve cover 5, the heating pipe 8 and the fan 9 are turned on, the heating pipe 8 generates heat, and the fan 9 blows air, thereby drying the water remaining on the valve cover 5 and the valve stem 6, avoiding rusting of the valve stem 6, and further improving the service life of the valve.
[0023] In order to facilitate the rotation of the hand wheel 16 , the screw rod 15 is provided with a hand wheel 16 .
[0024] 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 grooved rising stem gate valve, 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, wherein the valve body is provided with a valve stem, one end of the valve stem is connected to the valve plate, and is characterized in that: The valve cover further comprises a protective cover, a sealing groove is formed around the valve cover, the protective cover is arranged in the sealing groove to cover the valve stem, the valve cover is provided with an anti-detachment device for preventing the protective cover from detaching from the valve cover, the anti-detachment device comprises an anti-detachment rod, the protective cover is provided with an anti-detachment groove at the sealing groove position, the anti-detachment rod is slidably arranged in the valve cover, the valve cover is provided with a sliding device for pushing the anti-detachment rod to slide into or out of the anti-detachment groove, the sliding device comprises a limit block, a first channel is formed in the valve cover, the anti-detachment rod is arranged in the first channel, the limit block is arranged on the anti-detachment rod and in the first channel, a push device is provided in the first channel for pushing against the limit block so that the anti-detachment rod slides into the anti-detachment groove, and a return device is also provided in the valve cover for returning the limit block to its position.
2. A grooved rising stem gate valve according to claim 1, characterized in that: The push-up device comprises a push-up block arranged in a conical shape, a screw rod is threadedly penetrated through the lower end of the valve cover, one end of the screw rod is located in the first channel, the push-up block is arranged on the screw rod, and the limit block resists the push-up block.
3. A grooved rising stem gate valve according to claim 1, characterized in that: The return device comprises a spring, and the spring is sleeved on the anti-dropping rod. One end of the spring resists the inner wall of the first channel, and the other end of the spring resists the limit block.
4. A grooved rising stem gate valve according to claim 2, characterized in that: The limit block is arranged on a spherical surface with the contact surface of the abutting block.
5. A grooved rising stem gate valve according to claim 2, characterized in that: A heating pipe is arranged inside the protective cover above the valve stem, and a blowing device for blowing hot air downward is arranged at the upper end of the protective cover.
6. A grooved rising stem gate valve according to claim 5, characterized in that: The blowing device is a fan.
7. A grooved rising stem gate valve according to claim 2, characterized in that: A hand wheel is arranged on the screw rod.