Fire valve with good anti-corrosion effect

Abstract

The fire valve comprises a valve body, a fixing sleeve, a valve rod, a positioning rod, a hand wheel, a connecting clamping block and a reinforcing layer, a through hole is formed in the inner surface of one end of the hand wheel, a positioning disc is fixedly connected to the upper end of the outer surface of the valve body, a positioning hole is formed in the top of the positioning disc, and a through hole is formed in the fixing sleeve. A positioning rod is arranged on the inner side of the through hole, a handle is fixedly connected to the top of the positioning rod, and the outer side of the reinforcing layer is coated with an anti-corrosion layer. Through the arrangement of the anti-corrosion layer, under the assistance of the zirconium-titanium alloy coating, the tungsten carbide coating and the ceramic-based composite coating, triple anti-corrosion protection can be formed on the surface of the fire-fighting valve, after the valve rod is driven by the hand wheel and the fixing sleeve to rotate to seal the valve body, the positioning rod is driven by the handle to penetrate through the through hole, and therefore the valve body is sealed. And the lower end of the positioning rod enters the corresponding positioning hole, so that the purpose of preventing the valve rod from retreating can be achieved, and the use of people is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of fire valves, in particular to a fire valve with good anti-corrosion effect. Background Art

[0002] Fire valves are an important accessory for controlling industrial and building pipelines. This lecture focuses on the practical application of fire valves. For detailed principles and structural cross-sectional views, please refer to relevant reference books. Fire valves are composed of three major parts: valve body, opening and closing mechanism and valve cover.

[0003] At present, the existing fire valves have poor anti-corrosion effect during long-term outdoor use, which reduces their service life. In addition, the valve stem of the fire valve is prone to loosening and retreating after long-term use, resulting in reduced sealing effect, which brings inconvenience to people's use. For this reason, we propose a fire valve with good anti-corrosion effect. Utility Model Content

[0004] The purpose of the utility model is to provide a fire valve with good anti-corrosion effect, which has the advantages of good anti-corrosion effect and preventing valve stem from retreating, and solves the problem that the existing fire valve has poor anti-corrosion effect during long-term outdoor use, which reduces its service life, and the valve stem of the fire valve is prone to looseness and retreat after long-term use, resulting in reduced sealing effect and causing inconvenience for people to use.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fire valve with good anti-corrosion effect, comprising a valve body, a fixed sleeve, a valve stem, a positioning rod, a handwheel, a connecting block and a reinforcing layer, a through hole is provided on the inner surface of one end of the handwheel, a positioning plate is fixedly connected to the upper end of the outer surface of the valve body, a positioning hole is provided on the top of the positioning plate, a positioning rod is arranged on the inner side of the through hole, a handle is fixedly connected to the top of the positioning rod, an anti-corrosion layer is coated on the outer side of the reinforcing layer, and the anti-corrosion layer includes a zirconium-titanium alloy coating, a tungsten carbide coating and a ceramic-based composite coating from the inside to the outside.

[0006] Preferably, there are multiple positioning holes, and the angles between two adjacent positioning holes are equal.

[0007] Preferably, a valve stem is provided on the inner side of the valve body, a fixing sleeve is fixedly connected to the upper end of the outer surface of the valve stem, and a hand wheel is fixedly connected to the outer surface of the fixing sleeve.

[0008] Preferably, the positioning rod and the positioning hole are matched, and the lower end of the positioning rod is inserted into the inner side of the positioning hole.

[0009] Preferably, a connecting block is provided on the right side of the valve body, and the number of the connecting blocks is three.

[0010] Preferably, the outer sides of the valve body, the fixing sleeve, the valve stem, the positioning rod, the hand wheel and the connecting block are coated with a reinforcement layer, and the reinforcement layer includes a carbon fiber layer and an aluminum oxide coating in sequence from the inside to the outside.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] 1. The utility model can form triple protection on the surface of the fire valve by setting an anti-corrosion layer, and with the assistance of zirconium-titanium alloy coating, tungsten carbide coating and ceramic-based composite coating, so that the fire valve has a good anti-corrosion effect. After the valve stem is rotated by the handwheel and the fixed sleeve to seal the valve body, the positioning rod is driven through the through hole by the handle, and the lower end of the positioning rod enters the corresponding positioning hole, thereby preventing the valve stem from retreating and facilitating people's use.

[0013] 2. The utility model can form a double reinforced protection structure on the surface of the fire valve by setting a reinforcement layer and with the assistance of a carbon fiber layer and an aluminum oxide coating, thereby improving the toughness, hardness and impact resistance of the fire valve itself and expanding the scope of application of the fire valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the utility model from the first perspective;

[0015] Figure 2 This is a schematic diagram of the structure of the utility model from a second viewing angle;

[0016] Figure 3 This is a schematic diagram of the valve body structure of the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the reinforcement layer of the utility model;

[0018] Figure 5 This is a schematic diagram of the anti-corrosion layer structure of the utility model.

[0019] In the figure: 1. valve body; 2. positioning plate; 3. fixing sleeve; 4. valve stem; 5. handle; 6. positioning rod; 7. positioning hole; 8. handwheel; 9. through hole; 10. connecting block; 11. reinforcement layer; 111. carbon fiber layer; 112. alumina coating; 12. anti-corrosion layer; 121. zirconium-titanium alloy coating; 122. tungsten carbide coating; 123. ceramic-based composite coating. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] The valve body 1, positioning plate 2, fixing sleeve 3, valve stem 4, handle 5, positioning rod 6, positioning hole 7, handwheel 8, through hole 9, connecting block 10, reinforcement layer 11, carbon fiber layer 111, aluminum oxide coating 112, anti-corrosion layer 12, zirconium-titanium alloy coating 121, tungsten carbide coating 122 and ceramic-based composite coating 123 of the present application are all universal standard parts or parts known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or through conventional experimental methods.

[0024] Embodiment 1

[0025] See also Figure 1-Figure 5As shown, the utility model provides a technical solution: a fire valve with good anti-corrosion effect, comprising a valve body 1, a fixed sleeve 3, a valve stem 4, a positioning rod 6, a hand wheel 8, a connecting block 10 and a reinforcing layer 11, a through hole 9 is provided on the inner surface of one end of the hand wheel 8, a positioning plate 2 is fixedly connected to the upper end of the outer surface of the valve body 1, a positioning hole 7 is provided on the top of the positioning plate 2, a positioning rod 6 is arranged on the inner side of the through hole 9, a handle 5 is fixedly connected to the top of the positioning rod 6, an anti-corrosion layer 12 is coated on the outer side of the reinforcing layer 11, and the anti-corrosion layer 12 includes a zirconium-titanium alloy coating 121, a tungsten carbide coating 122 and a ceramic-based composite coating 123 from the inside to the outside;

[0026] There are multiple positioning holes 7, and the angles between two adjacent positioning holes 7 are equal.

[0027] A valve stem 4 is disposed on the inner side of the valve body 1, a fixing sleeve 3 is fixedly connected to the upper end of the outer surface of the valve stem 4, and a hand wheel 8 is fixedly connected to the outer surface of the fixing sleeve 3;

[0028] The positioning rod 6 and the positioning hole 7 are matched, and the lower end of the positioning rod 6 is inserted into the inner side of the positioning hole 7;

[0029] A connecting block 10 is disposed on the right side of the valve body 1 , and the number of the connecting blocks 10 is three.

[0030] The technical solution can form triple protection on the surface of the fire valve by setting the anti-corrosion layer 12, and with the assistance of the zirconium-titanium alloy coating 121, the tungsten carbide coating 122 and the ceramic-based composite coating 123, so that the fire valve has a good anti-corrosion effect. After the valve stem 4 is driven to rotate by the hand wheel 8 and the fixed sleeve 3 to seal the valve body 1, the positioning rod 6 is driven by the handle 5 to pass through the through hole 9, and the lower end of the positioning rod 6 enters the corresponding positioning hole 7, thereby preventing the valve stem 4 from retreating, which is convenient for people to use.

[0031] Embodiment 2

[0032] On the basis of embodiment 1, the utility model is as follows Figure 3-Figure 4 As shown, the outer sides of the valve body 1, the fixing sleeve 3, the valve stem 4, the positioning rod 6, the hand wheel 8 and the connecting block 10 are coated with a reinforcing layer 11, and the reinforcing layer 11 includes a carbon fiber layer 111 and an aluminum oxide coating 112 in sequence from the inside to the outside.

[0033] By setting the reinforcement layer 11, and with the assistance of the carbon fiber layer 111 and the aluminum oxide coating 112, the technical solution can form a double reinforced protection structure on the surface of the fire valve, thereby improving the toughness, hardness and impact resistance of the fire valve itself, and expanding the application scope of the fire valve.

[0034] Working principle: After the valve stem 4 is driven to rotate by the handwheel 8 and the fixed sleeve 3 to seal the valve body 1, the positioning rod 6 is driven through the through hole 9 by the handle 5, and the lower end of the positioning rod 6 enters the corresponding positioning hole 7, so as to prevent the valve stem 4 from retreating, which is convenient for people to use. Through the setting of the anti-corrosion layer 12, and with the assistance of the zirconium-titanium alloy coating 121, the tungsten carbide coating 122 and the ceramic-based composite coating 123, a triple protection can be formed on the surface of the fire valve, thereby making the fire valve have a good anti-corrosion effect. Through the setting of the reinforcement layer 11, and with the assistance of the carbon fiber layer 111 and the aluminum oxide coating 112, a double reinforced protection structure can be formed on the surface of the fire valve, thereby improving the toughness, hardness and impact resistance of the fire valve itself, and expanding the scope of application of the fire valve.

[0035] Importantly, it should be noted that the construction and arrangement of the present application shown in a number of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature or number or position of the discrete element may be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also an equivalent structure. Without departing from the scope of the present invention, other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the present invention is not limited to a specific embodiment, but extends to various modifications that still fall within the scope of the appended claims.

[0036] Additionally, in order to provide a concise description of example embodiments, all features of an actual embodiment may not be described (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention).

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. A fire valve with good anti-corrosion effect, comprising a valve body (1), a fixing sleeve (3), a valve stem (4), a positioning rod (6), a hand wheel (8), a connecting block (10) and a reinforcement layer (11), characterized in that: A through hole (9) is provided on the inner surface of one end of the hand wheel (8); a positioning plate (2) is fixedly connected to the upper end of the outer surface of the valve body (1); a positioning hole (7) is provided on the top of the positioning plate (2); a positioning rod (6) is provided on the inner side of the through hole (9); a handle (5) is fixedly connected to the top of the positioning rod (6); an anti-corrosion layer (12) is coated on the outer side of the reinforcement layer (11); the anti-corrosion layer (12) includes, from the inside to the outside, a zirconium-titanium alloy coating (121), a tungsten carbide coating (122), and a ceramic-based composite coating (123).

2. A fire valve with good anti-corrosion effect according to claim 1, characterized in that: The number of the positioning holes (7) is multiple, and the angles between two adjacent positioning holes (7) are equal.

3. A fire valve with good anti-corrosion effect according to claim 1, characterized in that: A valve stem (4) is arranged on the inner side of the valve body (1); a fixing sleeve (3) is fixedly connected to the upper end of the outer surface of the valve stem (4); and a hand wheel (8) is fixedly connected to the outer surface of the fixing sleeve (3).

4. A fire valve with good anti-corrosion effect according to claim 1, characterized in that: The positioning rod (6) and the positioning hole (7) are matched, and the lower end of the positioning rod (6) is inserted into the inner side of the positioning hole (7).

5. A fire valve with good anti-corrosion effect according to claim 1, characterized in that: A connecting block (10) is provided on the right side of the valve body (1), and the number of the connecting blocks (10) is three.

6. A fire valve with good anti-corrosion effect according to claim 1, characterized in that: The outer sides of the valve body (1), the fixing sleeve (3), the valve stem (4), the positioning rod (6), the hand wheel (8) and the connecting block (10) are all coated with a reinforcement layer (11), and the reinforcement layer (11) comprises, from the inside to the outside, a carbon fiber layer (111) and an aluminum oxide coating (112).

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