A valve with anti-corrosion function

Abstract

The present invention discloses a valve with anti-corrosion function, including a valve body, a valve stem, a protective tube, an arc plate 1, an arc plate 2, a hose, a sponge pad, a fixed pin, a rotating rod, a reset disc spring, a T-shaped rod, a spring 1, a block, a slot, a guide rod 1, a slider 1, a spring 2, a connecting rod, a pressing plate, a rectangular slot, a magnetic ring, a U-shaped rod, a block, a limit slot, a spring 3, a guide rod 2, a slider 2 and a U-shaped block. The present invention rotates the rotating rod around the fixed pin, and the rotating rod rotates to drive the T-shaped rod to move into the inside of the installation slot 2. Under the action of the elastic force of the spring 1, the T-shaped rod moves to drive the block to move into the inside of the slot, thereby completing the connection between the arc plate 1 and the arc plate 2, so that the sponge pad fits the annular side surface of the valve stem, and an external oil spraying device is used to spray oil into the inside of the hose, and the oil is sprayed onto the sponge pad through the spray pipe, and then the oil is coated on the annular side surface of the valve stem.

Description

Technical Field

[0001] The invention relates to a valve, in particular to a valve with an anti-corrosion function. Background Art

[0002] Valves are control components in fluid delivery systems and have functions such as shutoff, regulation, flow diversion, backflow prevention, pressure stabilization, flow diversion or overflow pressure relief.

[0003] The traditional valves have certain defects. They lack the function of conveniently lubricating the valve stem, which makes it inconvenient to protect the valve stem from corrosion. At the same time, they lack a holding mechanism, which makes it inconvenient to clamp and install the arc plate 1 and the arc plate 2. They lack a limiting mechanism, which makes it inconvenient for the valve stem to rotate and easily drive the arc plate 1 and the arc plate 2 to rotate, and thus it is inconvenient to evenly apply lubricating oil on the valve stem. Therefore, a valve with anti-corrosion function is proposed to address the above problems. Summary of the invention

[0004] A valve with anti-corrosion function, comprising a valve body, a valve stem, a protective sleeve, a lubricating mechanism, a holding mechanism and a limiting mechanism, wherein the valve stem and the protective sleeve are mounted on the annular side surface of the valve body, and the protective sleeve is mounted on the annular side surface of the valve stem;

[0005] The lubrication mechanism comprises arc plate 1, arc plate 2, a hose, a sponge pad, a fixing pin, a rotating rod, a reset disc spring and a T-shaped rod. Arc plate 1 and arc plate 2 are symmetrically installed on the annular side surface of the valve stem. A hose is installed inside the arc plate 1 and arc plate 2, and the two hoses are connected by a bellows. Sponge pads are installed inside the arc plate 1 and arc plate 2. A liquid spraying pipe is installed on the annular side surface of the hose. One end of the liquid spraying pipe fits with the sponge pad. A fixing pin is fixedly installed on one end of the arc plate 1. A reset disc spring and a rotating rod are installed on the annular side surface of the fixing pin. The outer side of the reset disc spring is fixedly installed inside the rotating rod. A T-shaped rod is installed on one end of the rotating rod, and one end of the T-shaped rod passes through arc plate 2 and fits with the other end of arc plate 2.

[0006] The holding mechanism comprises a guide rod 1, a slider 1, a spring 2, a connecting rod and a pressing sheet. The guide rod 1 is fixedly installed inside the annular side surface of the protection tube, the slider 1 is installed on the annular side surface of the guide rod 1, the spring 2 is installed on the annular side surface of the guide rod 1, and the two ends of the spring 2 are respectively fixedly installed on the bottom end of the slider 1 and inside the protection tube, the connecting rod is fixedly installed on one end of the slider, the pressing sheet is fixedly installed on the top of the connecting rod, and the bottom end of the pressing sheet is in contact with the top end of the arc plate 1;

[0007] The limiting mechanism includes a U-shaped rod, a block, a limiting groove and a spring three. The U-shaped rod is installed on the top of the pressing sheet, and the spring three is installed on the annular side of the U-shaped rod, and the bottom end of the spring three is fixedly installed on the pressing sheet. The bottom end of the U-shaped rod extends to the inside of the pressing sheet, and two blocks are symmetrically fixedly installed on the bottom end of the U-shaped rod. Two limiting grooves are symmetrically opened on the top of the arc plate one, and the bottom end of the block extends to the inside of the limiting groove.

[0008] Furthermore, the pressing mechanism is provided with two groups, the two groups of pressing mechanisms have the same structure, the two groups of pressing mechanisms are symmetrically installed on the annular side surface of the protective tube, and the bottom ends of the two pressing sheets are respectively fitted with arc plate one and arc plate two.

[0009] Furthermore, a strip groove is provided at one end of the rotating rod, one end of the T-shaped rod extends into the strip groove, a spring 1 is fixedly installed at one end of the T-shaped rod, one end of the spring 1 is fixedly installed inside the strip groove, two clamping blocks are symmetrically fixedly installed at one end of the T-shaped rod, two clamping grooves are symmetrically provided at one end of the arc plate 2, and the clamping blocks are installed inside the clamping grooves.

[0010] Furthermore, two rectangular grooves are symmetrically arranged on the annular side surface of the protection tube, a guide rod is fixedly installed inside the rectangular groove, a second spring is fixedly installed at the bottom end of the rectangular groove, and a magnetic ring is fixedly installed at the top end of the rectangular groove.

[0011] Furthermore, the limiting mechanism is provided with two groups, the two groups of limiting mechanisms have the same structure, and the two groups of limiting mechanisms are symmetrically installed on the arc plate 1 and the arc plate 2.

[0012] Furthermore, two grooves are symmetrically provided at the top of the pressing sheet, a guide rod 2 is fixedly installed inside the groove, a slider 2 is installed on the annular side of the guide rod 2, the top of the slider 2 is fixedly installed at the bottom end of the U-shaped block, and the top of the U-shaped block is fitted with the top of the U-shaped rod.

[0013] Furthermore, two receiving grooves are symmetrically formed at the bottom end of the pressing sheet, and the bottom ends of the receiving grooves are aligned with the limiting grooves.

[0014] Furthermore, one end of the arc plate 1 is fixed with a hinge by means of a screw 1, one end of the hinge is fixed to the arc plate 2 by means of a screw 2, and the arc plate 1 is rotatably connected with the arc plate 2 by means of the hinge.

[0015] Furthermore, one end of the arc plate one is provided with a mounting groove one, a fixing pin is fixedly installed inside the mounting groove one, one end of the arc plate two is provided with a mounting groove two, and one end of the rotating rod extends into the inside of the mounting groove two.

[0016] Furthermore, a circular through hole is opened at one end of the rotating rod, and a fixing pin is installed inside the circular through hole, the outer side of the reset disc spring is fixedly installed inside the circular through hole, a connecting pipe is installed at one end of the hose, and one end of the connecting pipe is connected to an external fuel injection device.

[0017] The beneficial effect of the present invention is that the present invention provides a valve with an anti-corrosion function that can conveniently lubricate a valve stem and conveniently install and fix arc plate 1 and arc plate 2. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0019] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention;

[0020] Figure 2 A schematic diagram of the structure of a lubrication mechanism according to an embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of the connection structure of arc plate 1 and arc plate 2 according to an embodiment of the present invention;

[0022] Figure 4 A schematic diagram of the structure of a pressing mechanism according to an embodiment of the present invention;

[0023] Figure 5 The figure is a schematic diagram of the structure of a limiting mechanism according to an embodiment of the present invention.

[0024] In the figure: 1. valve body, 2. valve stem, 3. protection tube, 4. arc plate 1, 5. arc plate 2, 6. hose, 7. sponge pad, 8. fixing pin, 9. rotating rod, 10. reset disc spring, 11. T-bar, 12. spring 1, 13. clamping block, 14. clamping groove, 15. guide rod 1, 16. slider 1, 17. spring 2, 18. connecting rod, 19. pressing piece, 20. rectangular groove, 21. magnetic ring, 22. U-shaped rod, 23. block, 24. limiting groove, 25. spring 3, 26. guide rod 2, 27. slider 2, 28. U-shaped block. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0026] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so as to describe the embodiments of the present invention described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0027] In the present invention, the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like are based on the directions or positional relationships shown in the drawings. These terms are mainly used to better describe the present invention and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction.

[0028] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those skilled in the art, the specific meanings of these terms in the present invention can be understood according to specific circumstances.

[0029] In addition, the terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0031] See also Figure 1-5 As shown, a valve with anti-corrosion function includes a valve body 1, a valve stem 2, a protective tube 3, a lubrication mechanism, a holding mechanism and a limit mechanism. The valve stem 2 and the protective tube 3 are installed on the annular side of the valve body 1, and the protective tube 3 is installed on the annular side of the valve stem 2;

[0032] The lubrication mechanism includes an arc plate 1 4, an arc plate 2 5, a hose 6, a sponge pad 7, a fixing pin 8, a rotating rod 9, a reset disc spring 10 and a T-shaped rod 11. The arc plate 1 4 and the arc plate 2 5 are symmetrically installed on the annular side of the valve stem 2. The arc plate 1 4 and the arc plate 2 5 are both installed with a hose 6, and the two hoses 6 are connected by a bellows. The arc plate 1 4 and the arc plate 2 5 are both installed with a sponge pad 7. A liquid spray pipe is installed on the annular side of the hose 6, and one end of the liquid spray pipe is in contact with the sponge pad 7. A fixing pin 8 is fixedly installed on one end of the arc plate 4. A reset disc spring 10 and a rotating rod 9 are installed on the annular side of the fixing pin 8. The outer side of the reset disc spring 10 is fixedly installed inside the rotating rod 9. A T-shaped rod 11 is installed at one end of the rotating rod 9, and one end of the T-shaped rod 11 passes through The arc plate 2 5 is fitted with the other end of the arc plate 2 5, and the user rotates the arc plate 1 4 and the arc plate 2 5 by the hinge, so that the arc plate 1 4 and the arc plate 2 5 are both installed on the annular side surface of the valve stem 2, and then pulls the T-shaped rod 11, and the T-shaped rod 11 moves to stretch the spring 1 21, so that the spring 1 21 generates elastic force, and then rotates the rotating rod 9 around the fixing pin 8, and the rotating rod 9 rotates to drive the T-shaped rod 11 to move into the inside of the installation groove 2, and under the action of the elastic force of the spring 1 21, the T-shaped rod 11 moves to drive the clamping block 13 to move into the inside of the clamping groove 14, thereby completing the connection between the arc plate 1 4 and the arc plate 2 5, so that the sponge pad 7 is fitted with the annular side surface of the valve stem 2, and then uses the external oil spraying equipment to inject oil into the hose 6, and the oil is sprayed onto the sponge pad 7 through the spraying pipe, and then the oil is coated on the annular side surface of the valve stem 2;

[0033] The pressing mechanism includes a guide rod 15, a slider 16, a spring 17, a connecting rod 18 and a pressing piece 19. The guide rod 15 is fixedly installed inside the annular side surface of the protection tube 3, the slider 16 is installed on the annular side surface of the guide rod 15, the spring 17 is installed on the annular side surface of the guide rod 15, and the two ends of the spring 17 are respectively fixedly installed on the bottom end of the slider 16 and inside the protection tube 3, the connecting rod 18 is fixedly installed on the end of the slider 16, the top of the connecting rod 18 is fixedly installed with a pressing piece 19, and the bottom end of the pressing piece 19 is in contact with the top end of the arc plate 14. Before installing the arc plate 14 and the arc plate 25 on the annular side surface of the valve stem 2, the user pulls the pressing piece 19 upwards to press The sheet 19 moves and drives the slider 16 to move through the connecting rod 18. The slider 16 moves and is adsorbed and fits with the magnetic ring 21, and stretches the spring 2 17. The adsorption force between the magnetic ring 21 and the slider 16 is greater than the elastic force of the spring 2 17, thereby fixing the position of the pressing sheet 19. After the arc plate 14 and the arc plate 25 are installed on the annular side of the valve stem 2, the pressing sheet 19 is pushed downward, so that the slider 16 moves downward and separates from the magnetic ring 21. Under the action of the elastic force of the spring 2 17, the slider 16 moves and drives the connecting rod 18 to drive the pressing sheet 19 to move downward, thereby fitting with the arc plate 14 and the arc plate 25, thereby pressing the arc plate 14 and the arc plate 25 between the pressing sheet 19 and the protective tube 3.

[0034] The limiting mechanism includes a U-shaped rod 22, a block 23, a limiting groove 24 and a spring 25. The U-shaped rod 22 is installed on the top of the pressing sheet 19, and the spring 25 is installed on the annular side of the U-shaped rod 22. The bottom end of the spring 25 is fixedly installed on the pressing sheet 19. The bottom end of the U-shaped rod 22 extends to the inside of the pressing sheet 19, and two blocks 23 are symmetrically fixedly installed at the bottom end of the U-shaped rod 22. Two limiting grooves 24 are symmetrically opened at the top of the arc plate 4. The bottom end of the block 23 extends to the inside of the limiting groove 24. The user pushes the U-shaped rod 22 downward. The movement of the U-shaped rod 22 drives the block 23 to move from the inside of the storage groove into the inside of the limiting groove 24, thereby preventing the arc plate 1 4 and the arc plate 2 5 from being offset in position. The movement of the U-shaped rod 22 squeezes the spring 3 25, causing the spring 3 25 to generate an elastic force. The elastic force of the spring 3 25 facilitates the movement and reset of the U-shaped rod 22, and then pulls the U-shaped block 28. The movement of the U-shaped block 28 drives the slider 2 27 to move along the guide rod 2 26. When the U-shaped block 28 fits with the U-shaped rod 22, the position of the U-shaped rod 22 is fixed, preventing the block 23 from popping out from the inside of the limiting groove 24.

[0035] The pressing mechanism is provided with two groups, and the two groups of the pressing mechanism have the same structure. The two groups of the pressing mechanism are symmetrically installed on the annular side surface of the protective tube 3, and the bottom ends of the two pressing sheets 19 are respectively in contact with the arc plate 1 4 and the arc plate 2 5; a strip groove is provided at one end of the rotating rod 9, and one end of the T-shaped rod 11 extends into the strip groove, and a spring 1 21 is fixedly installed at one end of the T-shaped rod 11, and one end of the spring 1 21 is fixedly installed in the strip groove, and two blocks 13 are symmetrically fixedly installed at one end of the T-shaped rod 11. Two card slots 14 are symmetrically formed at one end of the arc plate 2 5, and the card block 13 is installed inside the card slot 14; two rectangular slots 20 are symmetrically formed on the annular side surface of the protection tube 3, and a guide rod is fixedly installed inside the rectangular slot 20, a spring 2 17 is fixedly installed at the bottom end of the rectangular slot 20, and a magnetic ring 21 is fixedly installed at the top end of the rectangular slot 20; the limiting mechanism is provided with two groups, and the two groups of limiting mechanisms have the same structure, and the two groups of limiting mechanisms are symmetrically installed on the arc plate 1 4 and the arc plate 2 5; the pressing sheet Two grooves are symmetrically provided at the top of 19, and a guide rod 26 is fixedly installed inside the groove. A slider 27 is installed on the annular side of the guide rod 26. The top of the slider 27 is fixedly installed at the bottom of the U-shaped block 28, and the top of the U-shaped block 28 fits with the top of the U-shaped rod 22; two receiving grooves are symmetrically provided at the bottom of the pressing plate 19, and the bottom of the receiving groove is aligned with the limit groove 24; one end of the arc plate 4 is fixedly installed with a hinge by a screw 1, and one end of the hinge is fixed to the arc plate 2 5 by a screw 2. The arc plate 1 4 is rotatably connected with the arc plate 2 5 by a hinge; a mounting groove 1 is provided at one end of the arc plate 1 4, a fixing pin 8 is fixedly installed inside the mounting groove 1, a mounting groove 2 is provided at one end of the arc plate 2 5, one end of the rotating rod 9 extends to the inside of the mounting groove 2; a circular through hole is provided at one end of the rotating rod 9, a fixing pin 8 is installed inside the circular through hole, the outer side of the reset disc spring 10 is fixedly installed inside the circular through hole, a connecting pipe is installed at one end of the hose 6, and one end of the connecting pipe is connected to an external fuel injection device.

[0036] When the present invention is in use, the rotating rod 9 is rotated around the fixing pin 8, and the rotating rod 9 rotates to drive the T-shaped rod 11 to move into the inside of the installation groove 2. Under the action of the elastic force of the spring 1 21, the T-shaped rod 11 moves to drive the clamping block 13 to move into the inside of the clamping groove 14, thereby completing the connection between the arc plate 1 4 and the arc plate 2 5, so that the sponge pad 7 fits the annular side surface of the valve stem 2.

[0037] Push the pressing plate 19 downward, so that the slider 16 moves downward and separates from the magnetic ring 21. Under the action of the elastic force of the spring 2 17, the slider 16 moves and drives the connecting rod 18 to drive the pressing plate 19 to move downward, and then fits with the arc plate 1 4 and the arc plate 2 5, thereby pressing the arc plate 1 4 and the arc plate 2 5 between the pressing plate 19 and the protective tube 3.

[0038] Push the U-shaped rod 22 downward, and the movement of the U-shaped rod 22 drives the block 23 to move from the inside of the storage groove into the inside of the limiting groove 24, thereby avoiding the position displacement of the arc plate 1 4 and the arc plate 2 5. The movement of the U-shaped rod 22 squeezes the spring three 25, so that the spring three 25 generates an elastic force, and the elastic force of the spring three 25 facilitates the movement and reset of the U-shaped rod 22.

[0039] The present invention is beneficial in that:

[0040] 1. Rotate the rotating rod around the fixed pin, and the rotating rod drives the T-rod to move into the second installation slot. Under the action of the elastic force of the first spring, the movement of the T-rod drives the clamping block to move into the slot, thereby completing the connection between the first arc plate and the second arc plate, so that the sponge pad fits the annular side of the valve stem, solving the problem of lack of convenient lubrication of the valve stem, which makes it inconvenient to protect the valve stem from corrosion.

[0041] 2. Push the pressing piece downward, so that the slider 1 moves downward and separates from the magnetic ring. Under the action of the elastic force of the spring 2, the slider 1 moves and drives the connecting rod to drive the pressing piece downward, and then fits with the arc plate 1 and the arc plate 2, and then the arc plate 1 and the arc plate 2 are pressed between the pressing piece and the protective tube, which solves the problem of lack of a pressing mechanism, which makes it inconvenient to clamp and install the arc plate 1 and the arc plate 2.

[0042] 3. Push the U-shaped rod downward. The movement of the U-shaped rod drives the block to move from the inside of the storage groove into the inside of the limit groove, thereby avoiding the position displacement of arc plate 1 and arc plate 2. The movement of the U-shaped rod squeezes the spring 3, which makes the spring 3 generate elastic force. The elastic force of the spring 3 facilitates the movement and reset of the U-shaped rod, thus solving the problem of lack of a limiting mechanism, which makes it inconvenient for the valve stem to rotate, easily drives the arc plate 1 and arc plate 2 to rotate, and thus makes it inconvenient to evenly apply the lubricating oil on the valve stem.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A valve with anti-corrosion function, characterized in that: The valve body (1) comprises a valve body (1), a valve stem (2), a protective sleeve (3), a lubrication mechanism, a holding mechanism and a limit mechanism, wherein the valve stem (2) and the protective sleeve (3) are mounted on the annular side surface of the valve body (1), and the protective sleeve (3) is mounted on the annular side surface of the valve stem (2); The lubricating mechanism comprises an arc plate 1 (4), an arc plate 2 (5), a hose (6), a sponge pad (7), a fixing pin (8), a rotating rod (9), a reset coil spring (10) and a T-shaped rod (11); the arc plate 1 (4) and the arc plate 2 (5) are symmetrically mounted on the annular side surface of the valve stem (2); the arc plate 1 (4) and the arc plate 2 (5) are both internally mounted with a hose (6), and the two hoses (6) are connected via a bellows; the arc plate 1 (4) and the arc plate 2 (5) are both internally mounted with a sponge pad (7), a liquid spraying pipe is installed on the annular side surface of the hose (6), one end of the liquid spraying pipe is in contact with the sponge pad (7), a fixing pin (8) is fixedly installed on one end of the arc plate one (4), a reset coil spring (10) and a rotating rod (9) are installed on the annular side surface of the fixing pin (8), the outer side of the reset coil spring (10) is fixedly installed inside the rotating rod (9), a T-shaped rod (11) is installed on one end of the rotating rod (9), and one end of the T-shaped rod (11) passes through the arc plate two (5) and is in contact with the other end of the arc plate two (5); The holding mechanism comprises a guide rod (15), a slider (16), a spring (17), a connecting rod (18) and a pressing plate (19); the guide rod (15) is fixedly mounted inside the annular side surface of the protection tube (3); the slider (16) is mounted on the annular side surface of the guide rod (15); the spring (17) is mounted on the annular side surface of the guide rod (15); and both ends of the spring (17) are respectively fixedly mounted on the bottom end of the slider (16) and inside the protection tube (3); the connecting rod (18) is fixedly mounted on one end of the slider (16); the pressing plate (19) is fixedly mounted on the top end of the connecting rod (18); and the bottom end of the pressing plate (19) is in contact with the top end of the arc plate (4); The pressing mechanism is provided with two groups, the two groups of the pressing mechanism have the same structure, and the two groups of the pressing mechanism are symmetrically installed on the annular side surface of the protection tube (3), and the bottom ends of the two pressing sheets (19) are respectively in contact with the arc plate 1 (4) and the arc plate 2 (5); The limiting mechanism comprises a U-shaped rod (22), a block (23), a limiting groove (24) and a spring three (25); the U-shaped rod (22) is installed on the top of the pressing plate (19); the spring three (25) is installed on the annular side of the U-shaped rod (22); the bottom end of the spring three (25) is fixedly installed on the pressing plate (19); the bottom end of the U-shaped rod (22) extends into the inside of the pressing plate (19); and two blocks (23) are symmetrically fixedly installed on the bottom end of the U-shaped rod (22); two limiting grooves (24) are symmetrically provided on the top of the arc plate one (4); and the bottom end of the block (23) extends into the inside of the limiting groove (24); Two grooves are symmetrically formed at the top of the pressing sheet (19), a second guide rod (26) is fixedly installed inside the groove, a second slide block (27) is installed on the annular side surface of the second guide rod (26), the top of the second slide block (27) is fixedly installed on the bottom end of the U-shaped block (28), and the top of the U-shaped block (28) is in contact with the top of the U-shaped rod (22).

2. The valve with anti-corrosion function according to claim 1, characterized in that: A strip groove is formed at one end of the rotating rod (9), one end of the T-shaped rod (11) extends into the strip groove, a spring (21) is fixedly mounted at one end of the T-shaped rod (11), one end of the spring (21) is fixedly mounted inside the strip groove, two clamping blocks (13) are symmetrically fixedly mounted at one end of the T-shaped rod (11), two clamping grooves (14) are symmetrically formed at one end of the arc plate (5), and the clamping blocks (13) are mounted inside the clamping grooves (14).

3. The valve with anti-corrosion function according to claim 1, characterized in that: Two rectangular grooves (20) are symmetrically arranged on the annular side surface of the protection tube (3), a guide rod is fixedly installed inside the rectangular groove (20), a second spring (17) is fixedly installed at the bottom end of the rectangular groove (20), and a magnetic ring (21) is fixedly installed at the top end of the rectangular groove (20).

4. The valve with anti-corrosion function according to claim 1, characterized in that: The limiting mechanism is provided with two groups, the two groups of limiting mechanism have the same structure, and the two groups of limiting mechanism are symmetrically installed on the arc plate 1 (4) and the arc plate 2 (5).

5. The valve with anti-corrosion function according to claim 1, characterized in that: Two receiving grooves are symmetrically formed at the bottom end of the pressing sheet (19), and the bottom ends of the receiving grooves are aligned with the limiting grooves (24).

6. The valve with anti-corrosion function according to claim 1, characterized in that: One end of the arc plate 1 (4) is fixed with a hinge by means of a screw 1, and one end of the hinge is fixed on the arc plate 2 (5) by means of a screw 2. The arc plate 1 (4) and the arc plate 2 (5) are rotatably connected by means of the hinge.

7. The valve with anti-corrosion function according to claim 1, characterized in that: The arc plate one (4) has a mounting groove one at one end, a fixing pin (8) is fixedly installed inside the mounting groove one, the arc plate two (5) has a mounting groove two at one end, and one end of the rotating rod (9) extends into the inside of the mounting groove two.

8. The valve with anti-corrosion function according to claim 1, characterized in that: A circular through hole is provided at one end of the rotating rod (9), and a fixing pin (8) is installed inside the circular through hole. The outer side of the return coil spring (10) is fixedly installed inside the circular through hole. A connecting pipe is installed at one end of the hose (6), and one end of the connecting pipe is connected to an external fuel injection device.

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