CN215110814U

CN215110814U - Plastic gate valve with metal supporting frame inside

Info

Publication number: CN215110814U
Application number: CN202121109421.XU
Authority: CN
Inventors: 洪诗明; 洪锦彪; 洪江准
Original assignee: Quanzhou Fuming Valve Technology Co ltd
Current assignee: Quanzhou Fuming Valve Technology Co ltd
Priority date: 2021-05-21
Filing date: 2021-05-21
Publication date: 2021-12-10
Anticipated expiration: 2031-05-21

Abstract

The utility model provides a simple structure, application range are wide, have corrosion-resistant and sturdy and durable's a inside lining metal support frame's plastics gate valve, including the plastics gate valve, along the radial inhalant canal and the exhalant canal of seting up of plastics gate valve, set up in inhalant canal with be used for controlling the flashboard that the fluid opened and close between the exhalant canal, the flashboard top is located the inside valve rod that is used for opening and close the flashboard that is equipped with of plastics gate valve, the valve rod is worn out the plastics gate valve, the plastics gate valve inside lining has the enhancement device that is used for strengthening plastics gate valve intensity.

Description

Plastic gate valve with metal supporting frame inside

Technical Field

The utility model relates to a valve field, in particular to inside lining metal support frame's plastics gate valve.

Background

Most of the valve body materials of the existing soft seal gate valve adopt cast iron, nodular cast iron, cast steel and stainless steel; the valve core is made of the same material as the valve body, and rubber materials are lined at the sealing part of the valve core to ensure good sealing performance. The gate valve is suitable for non-corrosive low-pressure working conditions and has a good use effect. If the medium is corrosive or saline-alkaline, the valve seat in the valve cavity is easy to corrode, the corroded valve seat has poor sealing performance and short service life; meanwhile, the thickness of the corroded valve wall is thinned, the strength is reduced, the valve is not easy to be observed when being observed from the appearance of the valve, and the safety production is not facilitated. This is a limitation of the range of use of this type of valve and insufficient performance. It is also a demand for market development to provide a product with a wider range of acceptance.

SUMMERY OF THE UTILITY MODEL

Therefore, to the above-mentioned problem, the utility model provides a simple structure, application range are wide, have corrosion-resistant and sturdy and durable's a inside lining metal support frame's plastic gate valve.

In order to realize the above purpose, the technical scheme of the utility model a plastic gate valve of inside lining metal support frame is provided, including the plastic gate valve, along the radial inhalant canal and the exhalant canal of seting up of plastic gate valve, set up in inhalant canal with be used for controlling the flashboard that the fluid opened and close between the exhalant canal, the flashboard top is located the inside valve rod that is used for opening and close the flashboard that is equipped with of plastic gate valve, the valve rod is worn out the plastic gate valve, the plastic gate valve inside lining has the enhancement device that is used for strengthening plastic gate valve intensity.

The further improvement is that: the reinforcing device is a metal support frame matched with the plastic valve gate valve, and the metal support frame is fixedly arranged in the plastic gate valve.

The further improvement is that: the metal support frame and the plastic gate valve are integrally formed in the plastic gate valve through a thermoplastic process.

The further improvement is that: the plastic gate valve comprises a plastic gate valve body and a plastic valve cover, wherein the plastic valve cover is detachably arranged on the plastic gate valve body, a sealing device is arranged between the plastic valve cover and the plastic gate valve body, the metal support frame comprises a metal valve body support frame and a metal valve cover support frame, the metal valve body support frame is arranged in the plastic gate valve body, and the metal valve cover support frame is arranged in the valve cover.

The further improvement is that: the plastic gate valve is positioned at the two ends of the water inlet channel and the water outlet channel, and is respectively fixedly provided with a flange metal valve body support frame connected with an external pipeline, and the flange metal valve body support frame extends to the flange or is respectively provided with threads connected with the external pipeline.

The utility model has the advantages and the beneficial effects that:

1. simple structure and convenient production. This plastic gate valve inside lining has metal support frame for plastic gate valve not only has corrosion resistance's function, can replace the valve of stainless steel class at the operating mode that has corrosivity or has saline and alkaline nature under, has reduced production and use cost, but also has improved plastic gate valve's intensity, avoids it to damage easily, has longer life and resistance to compression, crashproof ability for traditional plastic gate valve.

2. The metal support frame and the plastic gate valve are manufactured through a thermoplastic process, so that the metal support frame and the plastic gate valve body can be better integrated, and the gate valve has better cohesiveness and more stable quality.

3. The plastic gate valve is lined with the metal support frame, so that the plastic gate valve is stable in structure and light in weight, and is greatly convenient to install and transport.

4. The outer layer is a plastic layer, so that a paint spraying process is not needed, and the energy-saving and environment-friendly effects are achieved.

5. The valve body material has wide application range and good product performance.

Drawings

Fig. 1 is a schematic view of a split structure of a plastic gate valve of a lining metal support frame according to an embodiment of the present invention.

Fig. 2 is a schematic view of the structure of the metal supporting frame of the present invention.

Fig. 3 is a schematic view of a cut-open structure of a plastic gate valve of a lining metal support frame according to an embodiment of the present invention.

Fig. 4 is the embodiment of the present invention, which is a schematic view of a structure of a lining metal support frame of a plastic rising stem gate valve.

Fig. 5 is a schematic structural view of the lining metal support frame of the plastic rising stem gate valve of the embodiment of the present invention.

Detailed Description

The following description will further describe embodiments of the present invention with reference to the accompanying drawings and examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

Example (b):

as shown in fig. 1-5, a plastic gate valve with a metal supporting frame lining comprises a plastic gate valve body 1, a plastic valve cover 5 fixed on the plastic gate valve body 1 by bolts 4, a sealing ring 10 arranged between the plastic valve cover 5 and the plastic gate valve body 1, a water inlet channel and a water outlet channel 12 radially arranged along the plastic gate valve body 1, an elastic gate plate 2 arranged between the water inlet channel and the water outlet channel 12 and used for controlling the opening and closing of fluid, a gate plate nut 9 arranged on the elastic gate plate 2, a valve rod 3 arranged above the elastic gate plate 2 and inside the plastic gate valve body 1 and used for opening and closing the elastic gate plate 2, an external thread matched with the gate plate nut 9 arranged at the lower end of the valve rod 3, a thread connected in the gate plate nut 9 at the lower end of the valve rod 3, and an internal thread through hole arranged on the plastic valve cover 5, the upper end of the valve rod 3 penetrates out of the internal thread through hole, the hexagonal pressing cap 7 is sleeved on the valve rod 3 in a sliding mode, the hexagonal pressing cap 7 is connected into the internal thread through hole in a threaded mode, a boss is arranged on the valve rod 3 and is tightly pressed with the hexagonal pressing cap 7, a metal valve body support frame 11 is arranged in the plastic gate valve body 1, and a metal valve cover support frame 12 is arranged in the plastic valve cover 5. Wherein, be equipped with the metal valve body in the plastic gate valve body 1 and support, be equipped with metal valve gap support frame 12 in the plastic valve gap 5 for the gate valve not only has corrosion resistance's function, can use under the operating mode that has corrosivity or has saline and alkaline nature, can replace the valve of stainless steel class, has reduced production and use cost, but also has improved the intensity of plastic gate valve, avoids it to damage easily, has longer life and resistance to compression, crashproof ability for traditional plastic gate valve.

In order to better fuse the metal support frame and the plastic gate valve and enable the metal support frame and the plastic gate valve to be bonded firmly, the metal valve body support frame 11 and the metal valve cover support frame 12 are integrally formed in the plastic gate valve together with the plastic gate valve body 1 and the plastic valve cover 5 through a thermoplastic process.

For being connected of making things convenient for plastic gate valve and outside pipeline, the plastic gate valve is located inlet channel and 12 both ends of exhalant canal and is fixed respectively and is equipped with flange 13 and the metal valve body support frame 11 that is connected with the outside pipeline and extend to flange 13 or can offer the screw thread that is connected with the outside pipeline respectively in inlet channel and the exhalant canal 12.

In order to facilitate the rotation of the valve rod 3, a hand wheel 8 is arranged on the valve rod 3.

Referring to fig. 4 and 5, the metal valve body support frame 11 and the metal bonnet support frame 12 in the present embodiment may also be lined in a plastic rising stem gate valve.

Having shown and described the basic principles and essential features of the invention and its advantages, it will be understood by those skilled in the art that the present invention is not limited by the embodiments described above, which are merely illustrative of the principles of the invention, but is susceptible to various changes and modifications without departing from the spirit and scope of the invention, all of which are intended to be covered by the appended claims and their equivalents.

Claims

1. The utility model provides a inside lining metal support frame's plastics gate valve, includes the plastics gate valve, along the radial inhalant canal and the exhalant canal of seting up of plastics gate valve, set up in inhalant canal with be used for the flashboard that control fluid opened and close between the exhalant canal, the flashboard top is located the inside valve rod that is used for opening and close the flashboard that is equipped with of plastics gate valve, the valve rod is worn out plastics gate valve, its characterized in that: the plastic gate valve is lined with a reinforcing device for reinforcing the strength of the plastic gate valve.

2. The gate valve of claim 1, wherein the gate valve comprises: the reinforcing device is a metal support frame matched with the plastic valve gate valve, and the metal support frame is fixedly arranged in the plastic gate valve.

3. The gate valve of claim 1, wherein the gate valve comprises: the metal support frame and the plastic gate valve are integrally formed in the plastic gate valve through a thermoplastic process.

4. The gate valve of claim 1, wherein the gate valve comprises: the plastic gate valve comprises a plastic gate valve body and a plastic valve cover, wherein the plastic valve cover is detachably arranged on the plastic gate valve body, a sealing device is arranged between the plastic valve cover and the plastic gate valve body, the metal support frame comprises a metal valve body support frame and a metal valve cover support frame, the metal valve body support frame is arranged in the plastic gate valve body, and the metal valve cover support frame is arranged in the valve cover.

5. The gate valve of claim 1, wherein the gate valve comprises: the plastic gate valve is positioned at the two ends of the water inlet channel and the water outlet channel, and is respectively fixedly provided with a flange metal valve body support frame connected with an external pipeline, and the flange metal valve body support frame extends to the flange or is respectively provided with threads connected with the external pipeline.