An assembled head for large tank and an assembly method thereof

Abstract

The present invention discloses an assembled head for the inside of a large tank body and an assembly method thereof, and relates to the technical field of tank head, specifically an assembled head for the inside of a large tank body and an assembly method thereof, comprising a tank body, a head is arranged on the right side of the tank body, a connecting pipe is fixedly installed on the left end of the head, a left connecting ring is fixedly installed on the right side of the tank body, and a right connecting ring is fixedly connected to the left side of the connecting pipe. The assembled head for the inside of a large tank body and the assembly method thereof, through the arrangement of the tank body and the head, a left connecting ring and a right connecting ring are installed on the inner sides of the tank body and the head, an assembly sleeve is fixedly mounted on the inner side of the left connecting ring, and an assembly pipe is fixedly mounted on the inner side of the right connecting ring, and the arrangement of the internal mounting groove, the fixing groove, and the limit block of the assembly sleeve is utilized, and the coordination of the mounting block, the mounting spring, and the fixing sleeve facilitates the assembly and installation between the tank body and the head.

Description

Technical Field

[0001] The invention relates to the technical field of tank head sealing, in particular to an assembled head sealing used inside a large tank and an assembling method thereof. Background Art

[0002] A head refers to a component used to seal the end of a container to isolate the internal and external media, also known as an end cover. The head of a cylindrical container is generally a rotating shell. According to the shape of the head surface, it can be divided into convex, conical, flat and combined shapes. A convex head refers to a head with a convex outer surface, such as a hemispherical, elliptical, dish-shaped and spherical head without folded edges. Some gas cylinders use a combined bottom head with the convex surface inward, which can not only ensure strength but also meet the needs of safe use. The head is a component of the container and is connected to the cylinder by welding. According to different geometric shapes, it can be divided into spherical, elliptical, dish-shaped, spherical crown, conical shell and flat cover. Among them, spherical, elliptical, dish-shaped and spherical crown heads are collectively referred to as convex heads, and are divided into butt-welding heads and socket-welding heads in welding.

[0003] In the production process of large tanks, it is necessary to use a head to seal both ends of the tank to make the tank form a closed whole. However, when the inside of the tank needs to be cleaned during use, due to the small diameter of the tank mouth, it is difficult for some tanks to send people inside and clean the inside. Therefore, after long-term use, severe scabs will form inside. Some use environments will cause the growth of microorganisms, resulting in a short service life of the tank. In order to facilitate the cleaning of the inside of the tank and ensure the sealing of the tank, we propose an assembled head for the inside of a large tank and an assembly method thereof. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides an assembled head for the interior of a large tank and an assembly method thereof, which solves the problems raised in the above-mentioned background technology.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: an assembled head for the inside of a large tank body and an assembly method thereof, comprising a tank body, a head is arranged on the right side of the tank body, a connecting pipe is fixedly installed on the left end of the head, a left connecting ring is fixedly installed on the right side of the tank body, a right connecting ring is fixedly connected to the left side of the connecting pipe, an assembly sleeve is fixedly sleeved inside the left connecting ring, an installation groove is provided on the inner side of the assembly sleeve, a fixing groove is provided on the inner side of the assembly sleeve, a limiting block is fixedly sleeved inside the assembly sleeve, an assembly pipe is fixedly sleeved inside the right connecting ring, a mounting block is fixedly installed on the inner side of the assembly pipe, a mounting spring is fixedly connected to the right side of the mounting block, and a fixing sleeve is fixedly installed on the right end of the mounting spring.

[0006] Optionally, a sealing groove is provided on the inner side of the left connecting ring and the right connecting ring, a sealing ring is movably sleeved inside the sealing groove, a clamping groove is provided on the outer side of the left connecting ring and the right connecting ring, a fixed clamping sleeve is movably sleeved outside the left connecting ring and the right connecting ring, a clamping groove is provided inside the fixed clamping sleeve, a clamping spring is fixedly connected inside the clamping groove, a clamping block is fixedly connected inside the clamping spring, and the sealing groove is provided on the inner side of the left connecting ring and the right connecting ring by utilizing the setting of the left connecting ring and the right connecting ring. When in use, the left connecting ring and the right connecting ring are conveniently provided by cooperating with the sealing groove to seal the left connecting ring and the right connecting ring, thereby facilitating the use of the device and avoiding leakage of the device during excessive use, which affects the safety of use.

[0007] Optionally, a mounting plate is fixedly installed on the inner side of the connecting tube, a contraction spring is fixedly connected to the inner side of the mounting plate, a separation sleeve is fixedly connected to the left end of the contraction spring, a connecting column is fixedly connected to the right end of the separation sleeve, a connecting stud is movablely sleeved on the outer side of the connecting tube, a separation block is fixedly connected to the inner side of the connecting stud, and a mounting plate, a connecting stud, a separation block, a separation sleeve and a contraction spring are provided on the inner side of the connecting tube. When in use, the fixing sleeve and the assembly sleeve are no longer fixed through the cooperation of the separation sleeve and the connecting column, and the assembly sleeve and the fixing sleeve are separated, which facilitates the use of the device and improves the practicability of the device.

[0008] Optionally, the width value of the mounting block is the same as the width value of the mounting groove, the width value of the fixing sleeve is the same as the width value of the fixing groove, and the width value of the mounting block is the same as the width value of the mounting groove, so that the mounting block can be inserted into the inner cavity of the assembly sleeve through the mounting groove, and the right connecting ring and the left connecting ring can be connected.

[0009] Optionally, the vertical cross-section of the assembly sleeve is U-shaped, the length of the limit block is the same as the length of the inner side of the assembly sleeve, the assembly sleeve is U-shaped, and an installation groove, a fixing groove and a limit block are opened inside the assembly sleeve. The setting of the limit block plays a role in limiting the installation block, which is convenient for cooperating with the fixing groove to fix the assembly tube and the assembly sleeve.

[0010] Optionally, the length of the sealing ring is greater than the sum of the lengths of the two sealing grooves, and the sealing ring and the sealing groove are adapted to each other. The setting of the sealing ring and the sealing groove facilitates the sealed connection between the left connecting ring and the right connecting ring, and makes the width of the sealing ring greater than the inner cavity width of the sealing groove, so that the sealing ring can seal the left connecting ring and the right connecting ring through the sealing groove.

[0011] Optionally, the vertical cross-sections of the clamping block and the clamping groove are right-angled triangles, and the clamping block is movably installed in the inner cavity of the clamping groove. The setting of the clamping block, through the cooperation of the clamping spring, facilitates the stable connection between the left connecting ring and the right connecting ring to avoid separation of the left connecting ring and the right connecting ring, and the clamping groove plays the role of clamping the clamping block.

[0012] Optionally, the separation block is located on the right side of the connecting column, the connecting column extends to the right to the right side of the mounting plate, and the connecting column is movably sleeved inside the mounting plate. The setting of the separation block and the connecting column serves to separate the fixing sleeve and the assembly sleeve, thereby facilitating the disassembly of the left connecting ring and the right connecting ring.

[0013] A method for assembling an assembled head for use inside a large tank comprises the following steps:

[0014] S1. First, insert the sealing ring into the sealing groove at the right end of the left connecting ring, so that the sealing ring is stuck in the inner cavity of the sealing groove, then place the connecting pipe on the right side of the tank body, then push the connecting pipe to the left, so that the end cap and the connecting pipe push the right connecting ring to move to the left, so that the right connecting ring is stuck to the right end of the sealing ring. At the same time, in the process of the right connecting ring moving to the left, the right connecting ring drives the assembly pipe to push the left, so that the assembly pipe is pushed between the left connecting ring and the assembly sleeve, so that the mounting block and the fixing sleeve are inserted into the interior of the assembly sleeve through the mounting groove, then rotate the end cap to drive the connecting pipe to rotate, so that the connecting pipe drives the right connecting ring and the assembly pipe to rotate, so that the assembly pipe drives the mounting block and the fixing sleeve to rotate, so that the fixing sleeve moves to the left under the action of the assembly sleeve, so that the mounting spring is in a compressed state, and the mounting block is rotated to a state of fitting the limit block, so that the mounting block and the mounting spring and the fixing sleeve are rotated to the left side of the fixing groove, and the fixing sleeve moves to the inner cavity of the fixing groove;

[0015] S2, then insert the fixed clamping sleeve from the outside of the left connecting ring and the right connecting ring to the outside of the left connecting ring and the right connecting ring, so that the clamping block moves outward under the action of the left connecting ring and the right connecting ring, so that the inside of the fixed clamping sleeve and the outside of the left connecting ring and the right connecting ring fit together, and then the clamping block and the outside of the clamping groove fit together, and then the clamping spring inserts the clamping block into the inner cavity of the clamping groove, so that the tank body and the head can be stably connected;

[0016] S3. When the inside needs to be cleaned after using it for a period of time, insert the permanent magnet to the outside of the fixed ferrule, and then make the permanent magnet adsorb the clamping block of the inner cavity of the fixed ferrule outward, so that the clamping block moves to the outside of the clamping groove, and then remove the fixed ferrule and the permanent magnet from the outside of the left connecting ring and the right connecting ring, and then rotate the connecting stud so that the connecting stud pushes the separation block to move inward during the inward movement, so that the separation block pushes the connecting column to the left of the separation sleeve, so that the separation sleeve pushes the fixed sleeve to the inside of the fixed groove, and then slightly rotate the connecting pipe to make the installation block clamp to the inside of the assembly sleeve, and then reverse the rotation of the connecting stud to make the separation block move outward, so that the contraction spring contracts the separation sleeve, and the separation sleeve is pulled out from the inner cavity of the fixed groove, and then rotate the head to make the head drive the connecting pipe and the right connecting ring to rotate, so that the installation block is pulled out from the outside of the installation groove.

[0017] The present invention provides an assembled head for use inside a large tank and an assembly method thereof, which has the following beneficial effects:

[0018] 1. The assembled head and assembly method for the inside of a large tank body are characterized in that, through the arrangement of the tank body and the head, a left connecting ring and a right connecting ring are installed on the inner sides of the tank body and the head, an assembly sleeve is fixedly mounted on the inner side of the left connecting ring, and an assembly tube is fixedly mounted on the inner side of the right connecting ring. The installation groove, the fixing groove and the limit block inside the assembly sleeve are arranged, and the installation block, the installation spring and the fixing sleeve are matched to facilitate the assembly and installation between the tank body and the head.

[0019] 2. The assembled head and assembly method for the inside of a large tank body are provided with sealing grooves on the inner sides of the right connecting ring and the left connecting ring, so that the inner movable sleeve of the sealing groove is provided with a sealing ring, and the width of the sealing ring is equal to the sum of the diameters of the two sealing grooves, and the outer sides of the left connecting ring and the right connecting ring are provided with a clamping groove. By using the setting of the fixed clamping sleeve and the setting of the clamping spring and the clamping block inside the fixed clamping sleeve, the left connecting ring and the right connecting ring can be stably connected by the fixed clamping sleeve, so that the tank body and the head can be stably installed, and the use of the device is convenient.

[0020] 3. The assembled head and assembly method for the interior of a large tank body are as follows: a connecting pipe is installed on the inner side of the head, a mounting plate is fixedly installed inside the connecting pipe, a separation sleeve is connected to the left side of the mounting plate through a contraction spring, the right end of the separation sleeve is fixedly connected to the connecting column, the outer part of the connecting pipe is movably sleeved with a separation block, and the mounting plate is connected to the inner side of the separation block through a bearing. When in use, it is convenient to control the extension of the separation sleeve through the mounting plate, convenient to control the length value of the mounting block and the fixed sleeve, and convenient to disassemble the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the structure of the splitting of the present invention;

[0023] Figure 3 It is a structural schematic diagram of the assembly sleeve of the present invention;

[0024] Figure 4 It is a structural schematic diagram of the mounting block of the present invention;

[0025] Figure 5 It is a structural schematic diagram of the fixed sleeve of the present invention;

[0026] Figure 6 It is a schematic structural diagram of the separation sleeve of the present invention.

[0027] In the figure: 1. tank body; 2. left connecting ring; 3. assembly sleeve; 4. installation groove; 5. fixing groove; 6. limit block; 7. head; 8. connecting pipe; 9. right connecting ring; 10. sealing groove; 11. assembly pipe; 12. mounting block; 13. mounting spring; 14. fixing sleeve; 15. clamping groove; 16. sealing ring; 17. fixing clamping sleeve; 18. clamping groove; 19. clamping spring; 20. clamping block; 21. mounting plate; 22. connecting stud; 23. separation block; 24. separation sleeve; 25. contraction spring; 26. connecting column; 27. permanent magnet. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely 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, rather than all the embodiments.

[0029] See also Figures 1 to 6The present invention provides a technical solution: an assembled head for the inside of a large tank, comprising a tank body 1, a head 7 is arranged on the right side of the tank body 1, and a connecting pipe 8 is fixedly installed on the left end of the head 7. By utilizing the arrangement of the tank body 1, the head 7 and the connecting pipe 8, when in use, it is convenient to disassemble the head 7 and the connecting pipe 8 from the right side of the tank body 1, which is convenient for use of the device, improves the practicality of the device, and facilitates the use of the device. A left connecting ring 2 is fixedly installed on the right side of the tank body 1, and a right connecting ring 9 is fixedly connected to the left side of the connecting pipe 8. The left connecting ring 2 The internal fixing sleeve is provided with an assembly sleeve 3, an installation groove 4 is provided on the inner side of the assembly sleeve 3, the width value of the installation block 12 is the same as the width value of the installation groove 4, the width value of the fixing sleeve 14 is the same as the width value of the fixing groove 5, the width value of the installation block 12 is the same as the width value of the installation groove 4, so that the installation block 12 can be inserted into the inner cavity of the assembly sleeve 3 through the installation groove 4, so that the right connecting ring 9 and the left connecting ring 2 can be connected. The left connecting ring 2 is provided on the inner side of the tank body 1, and the right connecting ring 9 is provided on the inner side of the connecting pipe 8, so that the left connecting ring 2 can be inserted into the inner cavity of the assembly sleeve 3 through the installation groove 4. The tank body 1 and the connecting pipe 8 are connected with the right connecting ring 9. A fixing groove 5 is provided on the inner side of the assembling sleeve 3. A limiting block 6 is provided on the internal fixing sleeve of the assembling sleeve 3. The vertical section of the assembling sleeve 3 is U-shaped. The length of the limiting block 6 is the same as the length of the inner side of the assembling sleeve 3. The U-shaped setting of the assembling sleeve 3 is provided. At the same time, an installation groove 4 and a fixing groove 5 and a limiting block 6 are provided inside the assembling sleeve 3. The setting of the limiting block 6 plays a role in limiting the installation block 12, which is convenient for cooperating with the fixing groove 5 to fix the assembling pipe 11 and the assembling sleeve 3. The internal fixing sleeve of the right connecting ring 9 has An assembly tube 11 is provided, and an installation block 12 is fixedly installed on the inner side of the assembly tube 11. An installation spring 13 is fixedly connected to the right side of the installation block 12. A fixing sleeve 14 is fixedly installed on the right end of the installation spring 13. The assembly tube 11 is arranged on the inner side of the right connecting ring 9. At the same time, the installation block 12, the installation spring 13 and the fixing sleeve 14 are installed on the inner side of the assembly tube 11. When in use, the assembly sleeve 3 can be stably connected through the installation block 12, the installation spring 13 and the fixing sleeve 14, so that the left connecting ring 2 and the right connecting ring 9 are stably connected, which facilitates the use of the device.

[0030] A sealing groove 10 is provided on the inner side of the left connecting ring 2 and the right connecting ring 9, and a sealing ring 16 is movably mounted inside the sealing groove 10. The length of the sealing ring 16 is greater than the sum of the lengths of the two sealing grooves 10, and the sealing ring 16 and the sealing groove 10 are adapted to each other. The setting of the sealing ring 16 and the sealing groove 10 is convenient for ensuring the sealed connection between the left connecting ring 2 and the right connecting ring 9, so that the width of the sealing ring 16 is greater than the inner cavity width of the sealing groove 10, so that the sealing ring 16 can seal the left connecting ring 2 and the right connecting ring 9 through the sealing groove 10. A clamping groove 15 is provided on the outer side of the left connecting ring 2 and the right connecting ring 9, and the vertical section of the clamping block 20 and the clamping groove 15 is a right triangle. The clamping block 20 is movably installed in the inner cavity of the clamping groove 15. The setting of the clamping block 20 is convenient for use through the cooperation of the clamping spring 19. The left connecting ring 2 and the right connecting ring 9 are stably connected to avoid the separation of the left connecting ring 2 and the right connecting ring 9, the clamping groove 15 plays the role of clamping the clamping block 20, the external movable sleeves of the left connecting ring 2 and the right connecting ring 9 are provided with a fixed clamping sleeve 17, the interior of the fixed clamping sleeve 17 is provided with a clamping groove 18, the interior of the clamping groove 18 is fixedly connected with a clamping spring 19, the inner side of the clamping spring 19 is fixedly connected with a clamping block 20, and the setting of the left connecting ring 2 and the right connecting ring 9 is utilized, and a sealing groove 10 is provided through the inner side of the left connecting ring 2 and the right connecting ring 9. When in use, it is convenient to make the left connecting ring 2 and the right connecting ring 9 sealed and connected through the setting of the left connecting ring 2 and the right connecting ring 9 and the cooperation of the sealing groove 10, so as to facilitate the use of the device and avoid leakage of the device during over-sinking in use, which affects the safety of use.

[0031] The inner side of the connecting tube 8 is fixedly installed with a mounting plate 21, the inner side of the mounting plate 21 is fixedly connected with a contraction spring 25, the left end of the contraction spring 25 is fixedly connected with a separation sleeve 24, the right end of the separation sleeve 24 is fixedly connected with a connecting column 26, the outer side of the connecting tube 8 is movably sleeved with a connecting stud 22, the inner side of the connecting stud 22 is fixedly connected with a separation block 23, the inner side of the connecting tube 8 is provided with a mounting plate 21, a connecting stud 22, a separation block 23, a separation sleeve 24, and a contraction spring 25, so that when in use, The cooperation between the separation sleeve 24 and the connecting column 26 makes the fixing sleeve 14 and the assembling sleeve 3 no longer fixed, so that the assembling sleeve 3 and the fixing sleeve 14 are separated, which facilitates the use of the device and improves the practicability of the device. The separation block 23 is located on the right side of the connecting column 26, and the connecting column 26 extends to the right to the right side of the mounting plate 21. The connecting column 26 is movably sleeved inside the mounting plate 21. The setting of the separation block 23 and the connecting column 26 serves to separate the fixing sleeve 14 and the assembling sleeve 3, and facilitates the disassembly of the left connecting ring 2 and the right connecting ring 9.

[0032] A method for assembling an assembled head for use inside a large tank comprises the following steps:

[0033] S1. First, insert the sealing ring 16 into the sealing groove 10 at the right end of the left connecting ring 2, so that the sealing ring 16 is stuck in the inner cavity of the sealing groove 10, then place the connecting pipe 8 on the right side of the tank body 1, and then push the connecting pipe 8 to the left, so that the end cap 7 and the connecting pipe 8 push the right connecting ring 9 to move to the left, so that the right connecting ring 9 is stuck to the right end of the sealing ring 16. At the same time, in the process of the right connecting ring 9 moving to the left, the right connecting ring 9 drives the assembly pipe 11 to the left, so that the assembly pipe 11 is pushed between the left connecting ring 2 and the assembly sleeve 3, so that the mounting block 12 and the fixing sleeve 14 are fixed. Insert the assembly sleeve 3 into the installation groove 4, then rotate the head 7, so that the head 7 drives the connecting pipe 8 to rotate, and the connecting pipe 8 drives the right connecting ring 9 and the assembly pipe 11 to rotate, so that the assembly pipe 11 drives the installation block 12 and the fixed sleeve 14 to rotate, so that the fixed sleeve 14 moves to the left under the action of the assembly sleeve 3, so that the installation spring 13 is in a compressed state, and the installation block 12 is rotated to a state of being in contact with the limit block 6, so that the installation block 12 and the installation spring 13 and the fixed sleeve 14 are rotated to the left side of the fixed groove 5, and the fixed sleeve 14 moves to the inner cavity of the fixed groove 5;

[0034] S2, then insert the fixed clamping sleeve 17 from the outside of the left connecting ring 2 and the right connecting ring 9 to the outside of the left connecting ring 2 and the right connecting ring 9, so that the clamping block 20 moves outward under the action of the left connecting ring 2 and the right connecting ring 9, so that the inside of the fixed clamping sleeve 17 and the outside of the left connecting ring 2 and the right connecting ring 9 fit together, and then the clamping block 20 and the outside of the clamping groove 15 fit together, and then the clamping spring 19 inserts the clamping block 20 into the inner cavity of the clamping groove 15, so that the tank body 1 and the head 7 can be stably connected;

[0035] S3. When the inside needs to be cleaned after being used for a period of time, the permanent magnet 27 is inserted into the outside of the fixed ferrule 17, and then the permanent magnet 27 adsorbs the clamping block 20 in the inner cavity of the fixed ferrule 17 outward, so that the clamping block 20 moves to the outside of the clamping groove 15, and then the fixed ferrule 17 and the permanent magnet 27 are removed from the outside of the left connecting ring 2 and the right connecting ring 9, and then the connecting stud 22 is rotated so that the connecting stud 22 pushes the separation block 23 to move inward during the inward movement, so that the separation block 23 The connecting column 26 pushes the separation sleeve 24 to the left, so that the separation sleeve 24 pushes the fixing sleeve 14 to the inside of the fixing groove 5, and then slightly rotates the connecting pipe 8 to make the mounting block 12 clamped to the inner side of the assembling sleeve 3, and then reverses the rotation of the connecting stud 22 to make the separation block 23 move outward, so that the contraction spring 25 contracts the separation sleeve 24, and the separation sleeve 24 is pulled out from the inner cavity of the fixing groove 5, and then rotates the head 7 to make the head 7 drive the connecting pipe 8 and the right connecting ring 9 to rotate, so that the mounting block 12 is pulled out from the outside of the mounting groove 4.

[0036] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. 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. Furthermore, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not expressly listed, or also includes elements inherent to such process, method, article, or apparatus.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An assembled end cap for use inside a large tank, comprising a tank body (1), a end cap (7) being arranged on the right side of the tank body (1), a connecting pipe (8) being fixedly mounted on the left end of the end cap (7), and characterized in that: A left connecting ring (2) is fixedly mounted on the right side of the tank body (1), a right connecting ring (9) is fixedly connected to the left side of the connecting tube (8), an assembly sleeve (3) is fixedly mounted inside the left connecting ring (2), an installation groove (4) is provided on the inner side of the assembly sleeve (3), a fixing groove (5) is provided on the inner side of the assembly sleeve (3), a limiting block (6) is fixedly mounted inside the assembly sleeve (3), an assembly tube (11) is fixedly mounted inside the right connecting ring (9), a mounting block (12) is fixedly mounted on the inner side of the assembly tube (11), a mounting spring (13) is fixedly connected to the right side of the mounting block (12), and a fixing sleeve (14) is fixedly mounted on the right end of the mounting spring (13); A mounting plate (21) is fixedly mounted on the inner side of the connecting tube (8), a contraction spring (25) is fixedly connected to the inner side of the mounting plate (21), a separation sleeve (24) is fixedly connected to the left end of the contraction spring (25), a connecting column (26) is fixedly connected to the right end of the separation sleeve (24), a connecting stud (22) is movablely mounted on the outer side of the connecting tube (8), and a separation block (23) is fixedly connected to the inner side of the connecting stud (22); During the movement of the right connecting ring (9) to the left, the right connecting ring (9) drives the assembly tube (11) to the left, so that the assembly tube (11) is pushed between the left connecting ring (2) and the assembly sleeve (3), so that the mounting block (12) and the fixing sleeve (14) are inserted into the interior of the assembly sleeve (3) through the mounting groove (4), and then the sealing head (7) is rotated, so that the sealing head (7) drives the connecting tube (8) to rotate, so that the connecting tube (8) drives the right connecting ring (9) and the assembly tube (11) to rotate, so that the assembly tube (11) drives the mounting block (12) and the fixing sleeve (14) to rotate, so that the fixing sleeve (14) moves to the left under the action of the assembly sleeve (3), so that the mounting spring (13) is in a compressed state, so that the mounting block (12) is rotated to a state of being in contact with the limit block (6), so that the mounting block (12) and the mounting spring (13) and the fixing sleeve (14) are rotated to the left side of the fixing groove (5), and the fixing sleeve (14) moves to the inner cavity of the fixing groove (5).

2. The assembled head for the interior of a large tank according to claim 1, characterized in that: The inner sides of the left connecting ring (2) and the right connecting ring (9) are provided with sealing grooves (10), the inner movably sleeve of the sealing grooves (10) is provided with a sealing ring (16), the outer sides of the left connecting ring (2) and the right connecting ring (9) are provided with clamping grooves (15), the outer movably sleeves of the left connecting ring (2) and the right connecting ring (9) are provided with fixed clamping sleeves (17), the inner sides of the fixed clamping sleeves (17) are provided with clamping grooves (18), the inner sides of the clamping grooves (18) are fixedly connected with clamping springs (19), and the inner sides of the clamping springs (19) are fixedly connected with clamping blocks (20).

3. The assembled head for the interior of a large tank according to claim 1, characterized in that: The width of the mounting block (12) is the same as the width of the mounting groove (4), and the width of the fixing sleeve (14) is the same as the width of the fixing groove (5).

4. The assembled head for the interior of a large tank according to claim 1, characterized in that: The vertical cross-section of the assembly sleeve (3) is U-shaped, and the length of the limit block (6) is the same as the length of the inner side of the assembly sleeve (3).

5. The assembled head for the interior of a large tank according to claim 2, characterized in that: The length of the sealing ring (16) is greater than the sum of the lengths of the two sealing grooves (10), and the sealing ring (16) and the sealing grooves (10) are adapted to each other.

6. The assembled head for the interior of a large tank according to claim 2, characterized in that: The vertical cross-sections of the clamping block (20) and the clamping slot (15) are in the form of a right triangle, and the clamping block (20) is movably mounted in the inner cavity of the clamping slot (15).

7. The assembled head for the interior of a large tank according to claim 1, characterized in that: The separation block (23) is located on the right side of the connecting column (26), the connecting column (26) extends rightward to the right side of the mounting plate (21), and the connecting column (26) is movably sleeved inside the mounting plate (21).

8. The method for assembling an assembled head for use inside a large tank according to claim 2, comprising the following steps: S1. First, insert the sealing ring (16) into the sealing groove (10) at the right end of the left connecting ring (2) so that the sealing ring (16) is stuck in the inner cavity of the sealing groove (10). Then, place the connecting pipe (8) on the right side of the tank body (1). Then, push the connecting pipe (8) to the left so that the sealing head (7) and the connecting pipe (8) push the right connecting ring (9) to the left so that the right connecting ring (9) is stuck to the right end of the sealing ring (16). At the same time, when the right connecting ring (9) moves to the left, the right connecting ring (9) drives the assembly pipe (11) to the left so that the assembly pipe (11) is pushed between the left connecting ring (2) and the assembly sleeve (3) so that the mounting block (12) and the fixing sleeve (14) are connected. Insert the mounting block (12) into the interior of the assembly sleeve (3) through the mounting groove (4), and then rotate the end cap (7) so that the end cap (7) drives the connecting pipe (8) to rotate, so that the connecting pipe (8) drives the right connecting ring (9) and the assembly pipe (11) to rotate, so that the assembly pipe (11) drives the mounting block (12) and the fixing sleeve (14) to rotate, so that the fixing sleeve (14) moves to the left under the action of the assembly sleeve (3), so that the mounting spring (13) is in a compressed state, so that the mounting block (12) is rotated to a state of being in contact with the limit block (6), so that the mounting block (12) and the mounting spring (13) and the fixing sleeve (14) are rotated to the left side of the fixing groove (5), and the fixing sleeve (14) moves to the inner cavity of the fixing groove (5); S2, then insert the fixed clamping sleeve (17) from the outside of the left connecting ring (2) and the right connecting ring (9) to the outside of the left connecting ring (2) and the right connecting ring (9), so that the clamping block (20) moves outward under the action of the left connecting ring (2) and the right connecting ring (9), so that the inside of the fixed clamping sleeve (17) and the outside of the left connecting ring (2) and the right connecting ring (9) fit together, and then the clamping block (20) and the outside of the clamping groove (15) fit together, and then the clamping spring (19) inserts the clamping block (20) into the inner cavity of the clamping groove (15), so that the tank body (1) and the head (7) can be stably connected; S3. When the interior needs to be cleaned after being used for a period of time, the permanent magnet (27) is inserted into the outside of the fixed ferrule (17), and then the permanent magnet (27) adsorbs the clamping block (20) in the inner cavity of the fixed ferrule (17) outward, so that the clamping block (20) moves to the outside of the clamping groove (15), and then the fixed ferrule (17) and the permanent magnet (27) are removed from the outside of the left connecting ring (2) and the right connecting ring (9), and then the connecting stud (22) is rotated, so that the connecting stud (22) pushes the separation block (23) to move inward during the inward movement, so that the separation block (23) pushes the connecting stud (22) to move inward, and the separation block (23) pushes the connecting stud (22) to move inward. 6) Push the separation sleeve (24) to the left so that the separation sleeve (24) pushes the fixing sleeve (14) to the inside of the fixing groove (5), then slightly rotate the connecting pipe (8) so that the mounting block (12) is clamped to the inside of the assembly sleeve (3), then reverse the connection stud (22) to move the separation block (23) outward, so that the contraction spring (25) contracts the separation sleeve (24) and the separation sleeve (24) is pulled out from the inner cavity of the fixing groove (5), then rotate the sealing head (7) so that the sealing head (7) drives the connecting pipe (8) and the right connecting ring (9) to rotate, so that the mounting block (12) is pulled out from the outside of the mounting groove (4).

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