Stainless steel hard sealing screw thread gate valve

Abstract

The utility model relates to the technical field of gate valve sealing, and discloses a stainless steel hard sealing screw thread gate valve which comprises a runner pipe, a protection assembly is arranged on the outer side of the runner pipe, connectors are fixedly connected to the two sides of the runner pipe respectively, and sealing assemblies are arranged in the two connectors respectively. The protection assembly comprises a heating net arranged on the outer side of the runner pipe. According to the stainless steel hard sealing screw thread gate valve, through the arrangement of the sealing assembly, when the stainless steel hard sealing screw thread gate valve is used, an external pipeline is connected with a device, at the moment, the external pipeline extrudes a metal sealing gasket during connection, so that an extrusion spring is in a compressed state, and the extrusion spring in the compressed state provides counter-acting force for the metal sealing gasket; the metal sealing gasket is tightly attached to an external pipeline, so that it is ensured that the sealing gasket is always in the optimal sealing state, sealing reliability is improved, meanwhile, the sealing ring is used for sealing the sealing gasket, a raw material belt can be omitted, and the raw material belt does not need to be wound on the threaded connector.

Description

Technical Field

[0001] This utility model relates to the field of gate valve sealing technology, and in particular to a stainless steel hard-seal threaded gate valve. Background Technology

[0002] Gate valves, as crucial shut-off devices in pipeline systems, are widely used in numerous fields. In building water supply and drainage systems, they control the flow of water, ensuring the supply and regulation of daily water for residents. In industrial sectors such as chemical, power, and metallurgy, gate valves are extensively used in various process pipelines to precisely shut off and control fluids of different properties (such as steam, oil, and corrosive liquids), ensuring smooth and safe production processes. With the continuous development of various industries, the performance requirements for gate valves are becoming increasingly stringent, in order to adapt to more complex and demanding working environments.

[0003] The sealing structure of traditional gate valves is easily affected by factors such as media erosion, wear and temperature changes during long-term use, which leads to a decrease in sealing effect and leakage of liquid from the interface. Therefore, a stainless steel hard-seal threaded gate valve is proposed. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] The purpose of this utility model is to provide a stainless steel hard-seal threaded gate valve, which solves the problem mentioned in the background art that the sealing structure of traditional gate valves is easily affected by factors such as medium erosion, wear and temperature changes during long-term use, resulting in a decrease in sealing effect and leakage of liquid from the interface.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a stainless steel hard-seal threaded gate valve, comprising a flow pipe, a protective assembly provided on the outside of the flow pipe, joints fixedly connected to both sides of the flow pipe, and sealing assemblies provided inside both sets of joints; the protective assembly includes a heating mesh provided on the outside of the flow pipe, and an anti-corrosion layer provided on the outside of the heating mesh; the two sets of sealing assemblies include compression springs provided inside the joints, and a metal sealing gasket fixedly connected to one end of each set of compression springs, with a rubber ring fixedly connected to the outside of the metal sealing gasket.

[0008] As a further embodiment of this utility model, a mounting block is fixedly connected to the top surface of the flow tube, and a fixing plate is fixedly connected to the surface of the mounting block. The fixing plate serves to install the controller.

[0009] As a further scheme of the utility model, the top surface of the mounting block is fixedly connected with a connecting disc, and the top surface of the connecting disc is provided with a sealing cover.

[0010] As a further scheme of the utility model, the top surface of the sealing cover is fixedly connected with a connecting pipe, and the outer side of the connecting pipe is provided with a connecting bolt.

[0011] As a further scheme of the utility model, the surface of the fixed plate is connected with a protection plate through a hinge, and the inside of the fixed plate is provided with a mounting groove.

[0012] As a further scheme of the utility model, the inside of the mounting groove is fixedly connected with a controller, and the inside of the mounting groove is provided with two groups of magnetic stones, and the surface of the two groups of magnetic stones is fixedly connected with a magnetic block.

[0013] As a further scheme of the utility model, the surface of the protection plate is provided with an observation window, and the material of the observation window is transparent glass.

[0014] (Three) beneficial effects

[0015] The utility model provides a stainless steel hard seal screw down gate valve has the following beneficial effects:

[0016] 1、 this stainless steel hard seal screw down gate valve, through the setting of sealing assembly, when using, the outside pipeline is connected with the device, at this moment, the outside pipeline is extruded to the metal sealing gasket when being connected, so that the extrusion spring is in the compression state, the extrusion spring in the compression state provides a reaction force for the metal sealing gasket, so that the metal sealing gasket is tightly attached to the outside pipeline, so that the sealing gasket can be ensured to be in the best sealing state all the time, improve the reliability of sealing, at the same time, the sealing ring can also save the raw material belt, so that the raw material belt does not have to be wound on the threaded joint.

[0017] 2、 this stainless steel hard seal screw down gate valve, through the setting of protection assembly, when using, the anticorrosive layer can effectively isolate the contact between the valve and corrosive medium, reduce the occurrence of corrosion, prolong the service life of the valve, in some low temperature environment, the medium in the valve can be solidified or frozen, so that the valve cannot work normally, at this moment, the heating net is heated through the controller, so that the medium is kept in a certain temperature range, prevents solidification or freezing, so as to affect the normal use of the device. ACCURACY OF DRAWINGS

[0018] Fig. 1 It is the whole structure schematic view of the utility model;

[0019] Fig. 2 It is the controller structure schematic view of the utility model;

[0020] Fig. 3 It is the protection assembly structure schematic view of the utility model;

[0021] Fig. 4 It is the sealing assembly structure schematic view of the utility model.

[0022] In the figure: 1, flow pipe; 2, protection assembly; 201, heating net; 202, anticorrosion layer; 3, joint; 4, sealing assembly; 401, extrusion spring; 402, metal sealing gasket; 5, mounting block; 6, fixed plate; 7, connecting disc; 8, sealing cover; 9, connecting pipe; 10, connecting bolt; 11, protection plate; 12, controller; 13, magnetic attraction stone; 14, magnetic block; 15, observation window. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described in combination with the drawings in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of the utility model.

[0024] Please refer to Figs. 1 to 4 The utility model provides a kind of technical solutions: a stainless steel hard sealing screw gate valve, including flow pipe 1, the outside of flow pipe 1 is provided with protection assembly 2, by the setting of protection assembly 2, avoid outside corrosive material to contact device, the both sides of flow pipe 1 are fixedly connected with joint 3, the inside of two groups of joint 3 is provided with sealing assembly 4, by the setting of sealing assembly 4, device is sealed, avoid liquid from interface leakage, protection assembly 2 includes the heating net 201 being set in the outside of flow pipe 1, the outside of heating net 201 is provided with anticorrosion layer 202;Two groups of sealing assembly 4 include the extrusion spring 401 being set in the inside of joint 3, the one end of several groups of extrusion spring 401 is fixedly connected with metal sealing gasket 402, the outside of metal sealing gasket 402 is fixedly connected with rubber ring;

[0025] The top of flow pipe 1 is fixedly connected with mounting block 5, the surface of mounting block 5 is fixedly connected with fixed plate 6, by the setting of fixed plate 6, play the role of installing controller 12;

[0026] The top of mounting block 5 is fixedly connected with connecting disc 7, the top of connecting disc 7 is provided with sealing cover 8, by the setting of connecting disc 7, play the role of being connected with sealing cover 8;

[0027] The top surface of the sealing cover 8 is fixedly connected with a connecting pipe 9, and the outer side of the connecting pipe 9 is provided with a connecting bolt 10, which plays a role of fixing the connecting pipe 9;

[0028] The surface of the fixed plate 6 is hingedly connected with a protection plate 11, and the inside of the fixed plate 6 is provided with a mounting groove, which plays a role of protecting the controller 12 through the protection plate 11;

[0029] The inside of the mounting groove is fixedly connected with the controller 12, and the inside of the mounting groove is provided with two groups of magnetic suction stones 13, and the surfaces of the two groups of magnetic suction stones 13 are fixedly connected with magnetic blocks 14, which plays a role of closing the protection plate 11 through the magnetic blocks 14;

[0030] The surface of the protection plate 11 is provided with an observation window 15, and the material of the observation window 15 is transparent glass, which plays a role of watching data on the controller 12 through the observation window 15.

[0031] The model of the controller 12 is PG-R7, and the above parameters and models can be selected according to actual conditions.

[0032] In the utility model, the working steps of the device are as follows:

[0033] The first step is to connect the external pipeline with the device in use, at this time, the external pipeline is extruded to the metal sealing gasket 402 when being connected, so that the extrusion spring 401 is in a compressed state, and the extrusion spring 401 provides a counterforce for the metal sealing gasket 402, so that the metal sealing gasket 402 is tightly attached to the external pipeline;

[0034] The second step is that in use, the anti-corrosion layer 202 can effectively isolate the contact between the valve and the corrosive medium, reduce the occurrence of corrosion, and prolong the service life of the valve, and in some low-temperature environments, the medium in the valve can be solidified or frozen, so that the valve cannot work normally, at this time, the heating net 201 is controlled by the controller 12 to heat, so that the medium is kept within a certain temperature range.

[0035] It should be noted that the equipment structure and the drawings of the utility model mainly describe the principle of the utility model, and the setting of the power mechanism, the power supply system and the control system of the device is not completely described in the design principle technology, and under the premise that the above-mentioned principle of the utility model is understood by the person skilled in the art, the specific of the power mechanism, the power supply system and the control system can be clearly known, and the control mode of the application file is automatically controlled by the controller, and the control circuit of the controller can be realized by simple programming of the person skilled in the art;

[0036] The standard parts used in the application can be purchased from the market, and can be ordered according to the description and the drawings. The specific connection mode of each part adopts the conventional means such as bolt, rivet and welding in the prior art. The mechanical parts and equipment adopt the conventional type in the prior art, and the components known to the person skilled in the art are known to the person skilled in the art through technical manual or conventional experimental method.

[0037] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to the embodiments without departing from the principles and spirits of the present application. The scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A stainless steel hard seal threaded gate valve comprising a flow passage (1), characterized in that: The outer side of the flow pipe (1) is provided with a protection assembly (2), both sides of the flow pipe (1) are fixedly connected with connectors (3), the interiors of the two groups of connectors (3) are provided with sealing assemblies (4), The protection assembly (2) comprises a heating net (201) arranged on the outer side of the flow pipe (1), and the outer side of the heating net (201) is provided with an anti-corrosion layer (202); The two groups of sealing assemblies (4) comprise extrusion springs (401) arranged in the interiors of the connectors (3), one end of each group of extrusion springs (401) is fixedly connected with a metal sealing gasket (402), and the outer side of the metal sealing gasket (402) is fixedly connected with a rubber ring.

2. A stainless steel hard seal threaded gate valve as defined in claim 1 wherein: The top surface of the flow pipe (1) is fixedly connected with a mounting block (5), and the surface of the mounting block (5) is fixedly connected with a fixed plate (6).

3. A hard seal stainless steel threaded gate valve as defined in claim 2 wherein: The top surface of the mounting block (5) is fixedly connected with a connecting disc (7), and the top surface of the connecting disc (7) is provided with a sealing cover (8).

4. A stainless steel hard seal threaded gate valve as defined in claim 3 wherein: The top surface of the sealing cover (8) is fixedly connected with a connecting pipe (9), and the outer side of the connecting pipe (9) is provided with a connecting bolt (10).

5. A stainless steel hard seal threaded gate valve as defined in claim 2 wherein: The surface of the fixed plate (6) is hingedly connected with a protection plate (11), and the interior of the fixed plate (6) is provided with a mounting groove.

6. A stainless steel hard seal threaded gate valve as defined in claim 5 wherein: The interior of the mounting groove is fixedly connected with a controller (12), the interior of the mounting groove is provided with two groups of magnetic stones (13), and the surfaces of the two groups of magnetic stones (13) are fixedly connected with magnetic blocks (14).

7. A stainless steel hard seal threaded gate valve as defined in claim 5 wherein: The surface of the protection plate (11) is provided with an observation window (15), and the material of the observation window (15) is transparent glass.

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