High-sealing combined single-piece type valve head

Abstract

The invention relates to the field of valve bodies, and discloses a high-sealing combined single-piece type valve head which comprises a valve body unit, the valve body unit comprises a valve sleeve and a valve rod, the valve rod is arranged on the inner side face of the valve sleeve, the valve sleeve is connected with the valve rod through threads, the outer wall of the valve rod is sleeved with a sealing unit with a sealing function, and the top face of the sealing unit is provided with a fixing unit with a fixing function. A sealing cylinder is arranged on the outer wall of the valve rod, an auxiliary ring is arranged between the sealing cylinder and the valve sleeve, and the sealing cylinder is fixedly connected with the auxiliary ring. The sealing structure has the beneficial effects that the situation that the sealing effect is greatly reduced due to the fact that the sealing material loses elasticity after the combined single-piece type valve head is used for a long time and is corroded by liquid can be prevented through mutual matching of the sealing unit structures, the sealing effect of the combined single-piece type valve head is improved, and the service life of the sealing structure is prolonged; therefore, resource waste is reduced, the liquid leakage condition caused by long-time use is avoided, and the long-acting sealing effect of the combined single-piece type valve head is kept.

Description

Technical Field

[0001] The invention relates to the technical field of valve bodies, and in particular to a highly sealed combined single-piece valve head. Background Art

[0002] The combined monolithic valve head is a special valve design, which is usually composed of a monolithic structure composed of one or more pieces of material. This valve head design is widely used in industrial piping systems. The valve head part is a single structure composed of one or more pieces of material combined through a specific process. This design can integrate multiple functions, such as valve seat, valve disc, sealing surface, etc. The sealing surface of the valve seat and the sealing surface of the valve disc must be precisely matched to ensure that the fluid leakage can be effectively prevented when the valve is closed.

[0003] However, during use of some existing combined single-piece valve heads, the sealing structure between the valve sleeve and the valve stem will be subjected to excessive impact force, causing the sealing structure to corrode after long-term use, thereby causing part of the sealing structure to lose more elasticity, resulting in a decrease in the sealing state between the valve sleeve and the valve stem, and the sealing structure losing its working effectiveness.

[0004] Therefore, it is necessary to provide a high-sealing combined single-piece valve head to solve the above problems. Summary of the invention

[0005] In view of the above-mentioned problem of a highly sealed combined monolithic valve head, the present invention is proposed.

[0006] Therefore, the object of the present invention is to provide a highly sealed combined monolithic valve head, which is used to solve the problem that the sealing structure between the valve sleeve and the valve stem of some combined monolithic valve heads will be subjected to excessive impact force during use, resulting in corrosion of the sealing structure after long-term use, thereby causing part of the sealing structure to lose more elasticity, resulting in a decrease in the sealing state between the valve sleeve and the valve stem, and the sealing structure losing its working effectiveness.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: a highly sealed combined monolithic valve head, comprising: a valve body unit, the valve body unit comprising a valve sleeve and a valve stem, the valve stem being arranged on the inner side of the valve sleeve, and the valve sleeve and the valve stem being connected by threads, a sealing unit having a sealing function being arranged on the outer wall of the valve stem, and a fixing unit having a fixing function being arranged on the top surface of the sealing unit; A sealing cylinder is arranged on the outer wall of the valve stem, an auxiliary ring is arranged between the sealing cylinder and the valve sleeve, and the sealing cylinder is fixedly connected to the auxiliary ring, a connecting ring is arranged on the outer wall of the sealing cylinder, and the connecting ring is located above the auxiliary ring, corrosion-resistant components with anti-corrosion function are arranged on the upper and lower sides of the connecting ring, and the lower corrosion-resistant component is located on the top surface of the auxiliary ring, an impact ring is arranged on the top surface of the upper corrosion-resistant component, and a buffer component with buffer function is arranged on the inner side of the corrosion-resistant component.

[0008] As a preferred solution of a high-sealing combined monolithic valve head described in the present invention, wherein: the corrosion-resistant component includes a sealing sleeve arranged on the upper and lower sides of a connecting ring, a plurality of telescopic cylinders are arranged between the upper and lower ends of the inner side of the sealing sleeve, a plurality of movable rings are arranged on the outer wall of the telescopic cylinder, and two movable rings are slidably connected to the telescopic cylinder, the movable ring is fixedly connected to the sealing sleeve, a plurality of groups of first sealing rings are arranged on the inner wall of the sealing sleeve, and the positions of the first sealing rings arranged on the inner walls on both sides of the sealing sleeve correspond to each other, and annular anti-slip stripes are arranged between the first sealing ring and the sealing sleeve, a connecting block is arranged on one side between the movable ring and the outer wall of the first sealing ring, a bracket is arranged between two adjacent connecting blocks through an axis rotation, and a second sealing ring is arranged between the inner sides of two adjacent first sealing rings.

[0009] As a preferred solution of the high-sealing combined single-piece valve head described in the present invention, a plurality of limit rings are arranged on the inner wall of the sealing sleeve, and two limit rings are slidingly connected with the upper and lower movable rings respectively, and a reset ring is arranged between the upper and lower movable rings.

[0010] As a preferred solution of the highly sealed combined monolithic valve head described in the present invention, wherein: a balancing shaft is arranged on both the upper and lower sides of the connecting ring, and a sliding groove matching the balancing shaft is opened on the sealing sleeve or the telescopic cylinder, and a strip-shaped groove is arranged between the balancing shaft and the telescopic cylinder for anti-slip function.

[0011] As a preferred solution of the high-sealing combined monolithic valve head described in the present invention, the buffer assembly includes a fixed column arranged on the side of the reset ring close to the first sealing ring, a moving rod is arranged on the side of the fixed column away from the reset ring, an air bag is arranged between the moving rod and the fixed column, an air inlet hole is arranged between the fixed column and the air bag, and the opening of the air inlet hole is downward.

[0012] As a preferred solution of a high-sealing combined single-piece valve head described in the present invention, wherein: the fixed unit includes a plurality of groups of fixed rotating plates arranged on the top surface of the sealing cylinder, and the fixed rotating plates are rotatably connected to the sealing cylinder through an axis, a connecting bent rod is arranged between the inner sides of the six fixed rotating plates, an extrusion sleeve is arranged between adjacent fixed rotating plates, and the connecting bent rod is rotatably connected to the extrusion sleeve.

[0013] As a preferred solution of the high-sealing combined single-piece valve head described in the present invention, the top surface of the sealing tube is provided with a groove matching the fixed rotating plate, the outer wall of the sealing tube is provided with a threaded ring through a thread, and the threaded ring is located on the top surface of the fixed rotating plate.

[0014] Beneficial effects of the present invention: 1. The mutual cooperation between the sealing unit structures can effectively prevent the combined monolithic valve head from being corroded by liquid after long-term use, causing the sealing material to lose elasticity and causing a significant reduction in the sealing effect, thereby improving the sealing effect of the combined monolithic valve head and the service life of the sealing structure, reducing resource waste and the occurrence of leakage after long-term use, and maintaining the long-term sealing effect of the combined monolithic valve head. 2. When the inner diameters of the first sealing rings on both sides increase or decrease, the second sealing ring slides inside the first sealing ring at the same time, thereby ensuring that the gap between the combination of the first sealing ring and the second sealing ring and the inner wall of the sealing sleeve is reduced, thereby enhancing the sealing effect of the sealing unit structure and improving the sealing quality of the sealing unit structure. After the upper sealing sleeve is subjected to pressure, it can be evenly transmitted to the lower sealing sleeve structure through the connecting ring, thereby ensuring that the principle of the corrosion-resistant component structure can be used normally, thereby maintaining the rationality of the structure and improving the tightness of the connection between the structures.

[0015] 3. The inner bottom surface of the impact ring is contacted by the fixed rotating plate in cooperation with the extrusion sleeve structure, thereby improving the sealing between one side of the impact ring and the sealing tube. The fixed rotating plate and the extrusion sleeve are cooperated to limit the sliding of the impact ring structure on the surface of the sealing tube away from the corrosion-resistant component, thereby ensuring the use direction of the structure. The mutual cooperation between the fixed unit structures can effectively improve the sealing effect of the combined single-piece valve head and the smooth use of the auxiliary sealing unit structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative labor.

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of a highly sealed combined single-piece valve head of the present invention.

[0018] Figure 2 It is a front view and cross-sectional structure schematic diagram of a highly sealed combined monolithic valve head of the present invention.

[0019] Figure 3 for Figure 2 Enlarged structural diagram at A in the middle.

[0020] Figure 4 This is a schematic diagram of the corrosion-resistant component structure of a highly sealed combined monolithic valve head of the present invention.

[0021] Figure 5The figure is a schematic diagram of the fixing unit structure of a highly sealed combined monolithic valve head according to the present invention.

[0022] Figure 6 The present invention is a schematic diagram of the sealing unit structure of a highly sealed combined monolithic valve head.

[0023] 1. Valve body unit; 101. Valve sleeve; 102. Valve stem; 200. Sealing unit; 201. Sealing cylinder; 202. Auxiliary ring; 203. Connecting ring; 204. Corrosion-resistant assembly; 2041. Telescopic cylinder; 2042. Moving ring; 2043. Bracket; 2044. First sealing ring; 2045. Reset ring; 2046. Limiting ring; 2047. Balance shaft; 2048. Connecting block; 2049. Sealing sleeve; 20410. Second sealing ring; 205. Impact ring; 206. Buffer assembly; 2061. Fixed column; 2062. Moving rod; 2063. Air bag; 2064. Air inlet; 300. Fixed unit; 301. Fixed rotating plate; 302. Connecting curved rod; 303. Extrusion sleeve; 304. Slot; 305. Threaded ring. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0025] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0027] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0028] Reference Figure 1-6, is an embodiment of the present invention, providing a high-sealing combined monolithic valve head, comprising: a valve body unit 100, the valve body unit 100 comprising a valve sleeve 101 and a valve stem 102, the valve stem 102 is arranged on the inner side of the valve sleeve 101, and the valve sleeve 101 and the valve stem 102 are connected by threads, the outer wall of the valve stem 102 is provided with a sealing unit 200 with a sealing function, and the top surface of the sealing unit 200 is provided with a fixing unit 300 with a fixing function; A sealing cylinder 201 is arranged on the outer wall of the valve stem 102, an auxiliary ring 202 is arranged between the sealing cylinder 201 and the valve sleeve 101, and the sealing cylinder 201 and the auxiliary ring 202 are fixedly connected, a connecting ring 203 is arranged on the outer wall of the sealing cylinder 201, and the connecting ring 203 is located above the auxiliary ring 202, and corrosion-resistant components 204 with corrosion-resistant functions are arranged on the upper and lower sides of the connecting ring 203, and the lower corrosion-resistant component 204 is located on the top surface of the auxiliary ring 202, an impact ring 205 is arranged on the top surface of the upper corrosion-resistant component 204, and a buffer component 206 with a buffer function is arranged on the inner side of the corrosion-resistant component 204; Specifically, when using this structure, it is necessary to sleeve the combined structure of the sealing cylinder 201 and the auxiliary ring 202 on the outer wall of the valve stem 102, then connect the connecting ring 203 with the two corrosion-resistant components 204, then sleeve the combined parts of the connecting ring 203 and the corrosion-resistant components 204 on the surface of the sealing cylinder 201, and then place the impact ring 205 on the top surface of the upper corrosion-resistant component 204, and then adjust the fixing unit 300 structure to limit and fix the sealing unit 200 structure as a whole to prevent the sealing unit 200 structure from detaching during the loading and unloading process. The impact ring 205 structure is shaped as a top surface opening, the inner wall fits the sealing cylinder 201, and the outer wall fits the valve sleeve 101. When the top surface receives impact force, the bottom surface is subjected to increased pressure, thereby ensuring the normal use of the corrosion-resistant component 204 structure. The fit of the inner and outer sides of the impact ring 205 is improved under the action of the impact force, thereby improving the sealing between the valve sleeve 101 and the valve stem 102. The mutual cooperation between the sealing unit 200 structures can effectively prevent the combined single-piece valve head from being corroded by liquid after long-term use, causing the sealing material to lose elasticity and causing the sealing effect to be greatly reduced, thereby improving the sealing effect of the combined single-piece valve head, increasing the service life of the sealing structure, reducing resource waste, and the occurrence of leakage caused by long-term use, and maintaining the long-term sealing effect of the combined single-piece valve head.

[0029] Reference Figure 2-3 and Figure 6As shown, the corrosion-resistant component 204 includes a sealing sleeve 2049 arranged on the upper and lower sides of the connecting ring 203, a plurality of telescopic cylinders 2041 are arranged between the upper and lower ends of the inner side of the sealing sleeve 2049, a plurality of moving rings 2042 are arranged on the outer wall of the telescopic cylinder 2041, and the two moving rings 2042 are slidably connected with the telescopic cylinder 2041, and the moving ring 2042 is fixedly connected with the sealing sleeve 2049, a plurality of groups of first sealing rings 2044 are arranged on the inner wall of the sealing sleeve 2049, and the positions of the first sealing rings 2044 arranged on the inner walls on both sides of the sealing sleeve 2049 correspond to each other, and annular anti-slip stripes are arranged between the first sealing ring 2044 and the sealing sleeve 2049, a connecting block 2048 is arranged on one side between the moving ring 2042 and the outer wall of the first sealing ring 2044, a bracket 2043 is arranged between two adjacent connecting blocks 2048 through shaft rotation, and a second sealing ring 20410 is arranged between the inner sides of two adjacent first sealing rings 2044; Specifically, during the use of the combined single-piece valve head, the liquid will exert an impact force on the impact ring 205 structure, and the impact force on the impact ring 205 is transmitted to the connecting ring 203 and the corrosion-resistant component 204 structure, so that the distance between the moving ring 2042 arranged on the outer side of the telescopic cylinder 2041 is shortened, and the moving ring 2042 is rotatably connected to the connecting block 2048 through the bracket 2043, and the pressure is transmitted to the first sealing ring 2044, so that the two first sealing rings 2044 respectively squeeze the inner wall of the two sides of the sealing sleeve 2049 toward the valve sleeve. 101, and the other side faces the valve stem 102, so that the sealing effect between the sealing sleeve 2049 and the valve sleeve 101 or the valve stem 102 is enhanced, and when the inner diameter of the first sealing ring 2044 on both sides increases or decreases, the second sealing ring 20410 slides on the inside of the first sealing ring 2044 at the same time, thereby ensuring that the gap between the combination of the first sealing ring 2044 and the second sealing ring 20410 and the inner wall of the sealing sleeve 2049 is reduced, thereby enhancing the sealing effect of the sealing unit 200 structure and improving the sealing quality of the sealing unit 200 structure.

[0030] Reference Figure 2-3 and Figure 6 As shown, a plurality of limiting rings 2046 are arranged on the inner wall of the sealing sleeve 2049, and two limiting rings 2046 are slidably connected to the upper and lower moving rings 2042 respectively, and a reset ring 2045 is arranged between the upper and lower moving rings 2042; Specifically, by setting a reset ring 2045, when the impact force on the impact ring 205 is reduced, the two movable rings 2042 are reset and moved, thereby reducing the extrusion between the first sealing ring 2044 and the sealing sleeve 2049, thereby maintaining the elasticity of the sealing sleeve 2049 material, extending the service life of the sealing sleeve 2049, and reducing the material loss rate. By setting a limit ring 2046 structure, the movement range of the first sealing ring 2044 and the second sealing ring 20410 is maintained, thereby ensuring the correct movement of the structure and ensuring that the sealing unit 200 structure can correctly improve the sealing effect between the valve sleeve 101 and the valve stem 102 during use.

[0031] Reference Figure 2-3 and Figure 6 As shown, the upper and lower sides of the connecting ring 203 are both provided with a balancing shaft 2047, and the sealing sleeve 2049 or the telescopic cylinder 2041 is provided with a sliding groove matching the balancing shaft 2047, and a strip-shaped card groove is provided between the balancing shaft 2047 and the telescopic cylinder 2041 for anti-slip function; Specifically, the balancing shaft 2047 is fixedly connected to the connecting ring 203 structure, and a strip groove is provided between the outer wall of the balancing shaft 2047 and the inner wall of the telescopic cylinder 2041, so that the balancing shaft 2047 can only slide up and down on the inner side of the telescopic cylinder 2041, so that after the upper sealing sleeve 2049 is subjected to pressure, it can be evenly transmitted to the lower sealing sleeve 2049 structure through the connecting ring 203, thereby ensuring that the principle of the corrosion-resistant component 204 structure can be used normally, thereby maintaining the rationality of the structure and improving the tightness of the connection between the structures.

[0032] Reference Figure 2 As shown, the buffer assembly 206 includes a fixed column 2061 disposed on the side of the reset ring 2045 close to the first sealing ring 2044, a moving rod 2062 is disposed on the side of the fixed column 2061 away from the reset ring 2045, an air bag 2063 is disposed between the moving rod 2062 and the fixed column 2061, and an air inlet hole 2064 is disposed between the fixed column 2061 and the air bag 2063, and the opening of the air inlet hole 2064 is downward; Specifically, when the corrosion-resistant component 204 structure is subjected to pressure to push the first sealing ring 2044 and the second sealing ring 20410, the first sealing ring 2044 drives the moving rod 2062 to slide on the inner side of the fixed column 2061, so that the airbag 2063 absorbs gas through the air inlet hole 2064 to expand. When the pressure on the corrosion-resistant component 204 structure is reduced, the first sealing ring 2044 pushes the moving rod 2062 to slide inside the telescopic cylinder 2041 to gradually compress the airbag 2063 and discharge the gas accumulated in the airbag 2063. In this process, the reset time of the corrosion-resistant component 204 structure is extended, thereby ensuring the sealing effect of the corrosion-resistant component 204 and preventing the liquid in the combined monolithic valve head from intermittently impacting the sealing unit 200 structure, thereby ensuring the sealing performance of the combined monolithic valve head.

[0033] Reference Figure 1-2 and Figure 5 As shown, the fixing unit 300 includes a plurality of fixed rotating plates 301 arranged on the top surface of the sealing cylinder 201, and the fixed rotating plates 301 are rotatably connected to the sealing cylinder 201 through a shaft, a connecting curved rod 302 is arranged between the inner sides of the six fixed rotating plates 301, an extrusion sleeve 303 is arranged between adjacent fixed rotating plates 301, and the connecting curved rod 302 is rotatably connected to the extrusion sleeve 303; Specifically, after the sealing unit 200 structure is assembled, the fixed rotating plate 301 is rotated. The fixed rotating plate 301 is connected by the elastic material of the connecting bent rod 302, so that the fixed rotating plate 301 can fix the impact ring 205 while driving the connecting bent rod 302 to deform during the rotation process. The fixed rotating plate 301 increases the squeezing force on the impact ring 205 by setting the connecting bent rod 302, so that the deformation of the fixed rotating plate 301 is reduced when the valve sleeve 101 and the valve stem 102 are disassembled, thereby ensuring the tight connection between the structures, and the fixed rotating plate 301 cooperates with the extrusion sleeve 303 structure to contact the inner bottom surface of the impact ring 205, thereby improving the sealing between one side of the impact ring 205 and the sealing tube 201, and the fixed rotating plate 301 cooperates with the extrusion sleeve 303 to limit the impact ring 205 structure from sliding on the surface of the sealing tube 201 toward the side away from the corrosion-resistant component 204, thereby ensuring the use direction of the structure.

[0034] Reference Figure 1-2 and Figure 5 As shown, a slot 304 matching the fixed rotating plate 301 is provided on the top surface of the sealing cylinder 201, and a threaded ring 305 is provided on the outer wall of the sealing cylinder 201 through a thread, and the threaded ring 305 is located on the top surface of the fixed rotating plate 301; Specifically, by providing a card slot 304 matching the fixed rotating plate 301 on the surface of the sealing cylinder 201, when the sealing unit 200 structure is disassembled, the card slot 304 is used to card-connect with the fixed rotating plate 301 structure, thereby increasing the speed of disassembling the combined single-piece valve head and reducing the difficulty of disassembling the combined single-piece valve head. The structure of the threaded ring 305 is provided to fix the fixed rotating plate 301, thereby improving the stability of the fixed unit 300 structure during use. The mutual cooperation between the fixed unit 300 structures can effectively improve the sealing effect of the combined single-piece valve head and the smooth use of the auxiliary sealing unit 200 structure.

[0035] Working principle: When using this structure, it is necessary to sleeve the combined structure of the sealing cylinder 201 and the auxiliary ring 202 on the outer wall of the valve stem 102, then connect the connecting ring 203 with the two corrosion-resistant components 204, then sleeve the combined parts of the connecting ring 203 and the corrosion-resistant components 204 on the surface of the sealing cylinder 201, and then place the impact ring 205 on the top surface of the upper corrosion-resistant component 204, and then adjust the fixing unit 300 structure to limit and fix the sealing unit 200 structure as a whole to prevent the sealing unit 200 structure from detaching during loading and unloading. The impact ring 205 structure is shaped like a top surface opening, the inner wall fits the sealing cylinder 201, and the outer wall fits the valve sleeve 101. When the top surface receives impact force, the bottom surface is subjected to increased pressure, thereby ensuring the normal use of the corrosion-resistant component 204 structure. The fit of the inner and outer sides of the impact ring 205 is improved under the action of the impact force, thereby improving the sealing between the valve sleeve 101 and the valve stem 102. The mutual cooperation between the sealing unit 200 structures can effectively prevent the combined single-piece valve head from being corroded by liquid after long-term use, causing the sealing material to lose elasticity and causing the sealing effect to be greatly reduced, thereby improving the sealing effect of the combined single-piece valve head, increasing the service life of the sealing structure, reducing resource waste, and the occurrence of leakage caused by long-term use, and maintaining the long-term sealing effect of the combined single-piece valve head.

[0036] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A highly sealed combined monolithic valve head, characterized in that: include: A valve body unit (100), the valve body unit (100) comprising a valve sleeve (101) and a valve stem (102), the valve stem (102) being arranged on the inner side of the valve sleeve (101), and the valve sleeve (101) and the valve stem (102) being connected via threads, a sealing unit (200) having a sealing function being arranged on the outer wall of the valve stem (102), and a fixing unit (300) having a fixing function being arranged on the top surface of the sealing unit (200); The valve stem (102) is provided with a sealing cylinder (201) on its outer wall, an auxiliary ring (202) is provided between the sealing cylinder (201) and the valve sleeve (101), and the sealing cylinder (201) and the auxiliary ring (202) are fixedly connected, the sealing cylinder (201) is provided with a connecting ring (203) on its outer wall, and the connecting ring (203) is located above the auxiliary ring (202), the connecting ring (203) is provided with corrosion-resistant components (204) with an anti-corrosion function on both upper and lower side surfaces, and the lower corrosion-resistant component (204) is located on the top surface of the auxiliary ring (202), the upper corrosion-resistant component (204) is provided with an impact ring (205) on its top surface, and the inner side surface of the corrosion-resistant component (204) is provided with a buffer component (206) with a buffer function.

2. A highly sealed combined monolithic valve head according to claim 1, characterized in that: The corrosion-resistant component (204) comprises a sealing sleeve (2049) arranged on the upper and lower sides of the connecting ring (203); a plurality of telescopic cylinders (2041) are arranged between the upper and lower ends of the inner side of the sealing sleeve (2049); a plurality of movable rings (2042) are arranged on the outer wall of the telescopic cylinder (2041); two movable rings (2042) are slidably connected to the telescopic cylinder (2041); the movable rings (2042) are fixedly connected to the sealing sleeve (2049); and a plurality of first sealing rings (2041) are arranged on the inner wall of the sealing sleeve (2049). 44), and the first sealing rings (2044) arranged on the inner walls of both sides of the sealing sleeve (2049) are positioned correspondingly, and an annular anti-slip stripe is arranged between the first sealing ring (2044) and the sealing sleeve (2049), a connecting block (2048) is arranged on one side between the movable ring (2042) and the outer wall of the first sealing ring (2044), a bracket (2043) is arranged between two adjacent connecting blocks (2048) through shaft rotation, and a second sealing ring (20410) is arranged between the inner side surfaces of two adjacent first sealing rings (2044).

3. The highly sealed combined monolithic valve head according to claim 2, characterized in that: The inner wall of the sealing sleeve (2049) is provided with a plurality of limit rings (2046), and two limit rings (2046) are respectively slidably connected to the upper and lower movable rings (2042), and a reset ring (2045) is provided between the upper and lower movable rings (2042).

4. The highly sealed combined monolithic valve head according to claim 2, characterized in that: The upper and lower sides of the connecting ring (203) are both provided with a balancing shaft (2047), and the sealing sleeve (2049) or the telescopic cylinder (2041) is provided with a sliding groove matching the balancing shaft (2047), and a strip-shaped groove is provided between the balancing shaft (2047) and the telescopic cylinder (2041) to provide an anti-slip function.

5. The highly sealed combined monolithic valve head according to claim 3, characterized in that: The buffer assembly (206) comprises a fixed column (2061) arranged on a side of the reset ring (2045) close to the first sealing ring (2044); a moving rod (2062) is arranged on a side of the fixed column (2061) away from the reset ring (2045); an air bag (2063) is arranged between the moving rod (2062) and the fixed column (2061); an air inlet (2064) is arranged between the fixed column (2061) and the air bag (2063), and the opening of the air inlet (2064) is downward.

6. The highly sealed combined monolithic valve head according to claim 1, characterized in that: The fixing unit (300) comprises a plurality of groups of fixing rotating plates (301) arranged on the top surface of the sealing cylinder (201), and the fixing rotating plates (301) are rotatably connected to the sealing cylinder (201) via a shaft, a connecting curved rod (302) is arranged between the inner side surfaces of the six fixing rotating plates (301), an extrusion sleeve (303) is arranged between adjacent fixing rotating plates (301), and the connecting curved rod (302) is rotatably connected to the extrusion sleeve (303).

7. The highly sealed combined monolithic valve head according to claim 6, characterized in that: The top surface of the sealing cylinder (201) is provided with a slot (304) matching the fixed rotating plate (301), and the outer wall of the sealing cylinder (201) is provided with a threaded ring (305) through a thread, and the threaded ring (305) is located on the top surface of the fixed rotating plate (301).

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