Sealed joint for storage tank

Abstract

The sealing type connector for the storage tank comprises a storage tank body, a main connector assembly and an auxiliary connector assembly, the main connector assembly is fixedly arranged at a flange connecting pipe opening in the storage tank body, automatic sealing treatment after the auxiliary connector assembly is detached is achieved, and automatic locking operation is completed after the auxiliary connector assembly is automatically sealed; and the auxiliary connector assembly is connected with the main connector assembly in a communicating mode in an inserting mode, convenient and fast automatic locking operation after inserting arrangement is achieved, multi-layer sealing arrangement after inserting arrangement is achieved, and sealing reliability is guaranteed. After the sealed joint for the storage tank is disassembled and separated, automatic sealing treatment is achieved, automatic locking operation is achieved after automatic sealing, leakage of the storage tank caused by accidental opening is effectively prevented, in addition, a staggered clamping mode is adopted, the use requirement of multi-layer sealing treatment in actual use is met, and the sealing reliability of the joint is effectively guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field related to storage tanks, and in particular to a sealed joint for storage tanks. Background Art

[0002] As the name implies, a storage tank is a sealed container for storing gaseous or liquid substances. It is an essential and important infrastructure in various industries such as petroleum, chemical and food. There are many types of storage tanks according to different usage requirements, different materials used and different structural shapes. Storage tanks are usually equipped with joints, among which the joints are the most indispensable accessories. They play a connecting role and are used to connect the storage tanks with other pipelines or equipment to achieve the transmission and distribution of liquid or gaseous substances in the storage tanks after the connection is achieved.

[0003] The tank joints used in the prior art still have certain disadvantages, such as: 1. The existing tank joint is usually composed of two joint ends, which are divided into a main joint fixedly connected to the tank and a secondary joint for connecting the pipeline. However, when disconnecting the pipeline connection and disassembling the secondary joint, a valve is usually set on the main joint for sealing the main joint after disassembly. It cannot realize the automatic sealing of the main joint, which affects the convenience of operation and cannot assist the use requirements of quick disassembly and assembly and quick connection or disconnection of the joint; 2. The main joint and the auxiliary joint of the existing tank joints are connected by threaded connection. The operation is not convenient enough and the joint cannot be quickly and conveniently disassembled. In addition, after the main joint and the auxiliary joint are connected, the purpose of multi-level sealing treatment cannot be met, which affects the reliability of the seal. Therefore, we propose a sealed joint for a storage tank to solve the above problems. Summary of the invention

[0004] The object of the present invention is to provide a sealed joint for a storage tank to solve the problems raised in the above-mentioned background technology that the main joint cannot be automatically sealed, the auxiliary joint cannot be quickly disassembled and quickly connected or disconnected, and the purpose of multi-level sealing treatment cannot be met, thus affecting the sealing reliability.

[0005] To achieve the above object, the present invention provides the following technical solution: a sealed joint for a storage tank, comprising: A storage tank body, wherein the outlet of the storage tank body is provided with a flange pipe port of an integrated structure; Also includes: The main joint assembly is fixedly arranged at the flange pipe port in the tank body, which realizes the automatic sealing process after the auxiliary joint assembly is disassembled, and completes the automatic locking operation after automatic sealing to prevent accidental opening and leakage of the tank; The auxiliary joint assembly is connected to the main joint assembly by plugging, which realizes convenient automatic locking operation after plugging and placement, and realizes multi-level sealing setting after plugging and placement to ensure sealing reliability.

[0006] Preferably, the main joint assembly includes a main pipe seat wide portion, a main pipe seat narrow portion, a plugging member and a linkage column, the main pipe seat wide portion is plugged in the tube cavity of the flange pipe port in the storage tank body, and the flange in the main pipe seat wide portion is fixedly connected with the flange body of the flange pipe port in the storage tank body by bolts, the main pipe seat narrow portion of an integrated structure is provided in the middle of the right side of the main pipe seat wide portion, and the main pipe sleeve portion of an integrated structure is provided on the outer side of the left end of the main pipe seat narrow portion; Wherein, a blocking piece is slidably connected in the tube cavity of the wide part of the main pipe seat, and the blocking piece is connected to the right end of the linkage column through the auxiliary rotation of the shaft tube part.

[0007] Preferably, a flow channel groove is provided in the seat wall of the wide portion of the main seat, and the right end of the flow channel groove extends to the cavity wall of the narrow portion of the tube cavity in the wide portion of the main seat and is connected to the narrow portion of the tube cavity; Wherein, the left side of the wide portion of the main pipe seat is fixedly connected to the limited seat cover by bolts, and the flow port in the limited seat cover is connected to the left end of the flow channel groove; Wherein, "L"-shaped grooves are provided on the upper and lower side walls of the tube cavity of the middle wide portion of the wide portion of the main pipe seat.

[0008] Preferably, the upper and lower sides of the wide portion of the blocking member are both provided with a first pin column portion of an integrated structure, and the first pin column portion forms a sliding structure in the "L"-shaped groove, and a first spring is installed at the connection between the blocking member and the limit seat cover; Wherein, spiral grooves are provided on the upper and lower tube cavity walls of the central axis tube portion of the blocking member, and a straight groove in an open state is provided at the right end of the spiral groove extending to the right; Wherein, the middle part of the position-limiting seat cover is connected to the linkage column in a sliding manner.

[0009] Preferably, a first sealing rubber ring is fixedly connected to the right end of the narrow portion of the plugging member, and the first sealing rubber ring is pressed and sealed at the connection between the narrow portion tube cavity in the wide portion of the main pipe seat and the middle tube cavity in the narrow portion of the main pipe seat, and a second sealing rubber ring is fixedly connected to the connection between the narrow portion tube cavity and the narrow portion tube cavity in the wide portion of the main pipe seat, and the second sealing rubber ring is pressed and sealed at the connection between the wide portion tube cavity and the narrow portion tube cavity in the wide portion of the main pipe seat; Wherein, the gap between the first sealing rubber ring and the second sealing rubber ring corresponds to the right end opening of the flow channel groove.

[0010] Preferably, the auxiliary joint assembly comprises an auxiliary pipe seat, a pushing column and an auxiliary pipe sleeve portion, the left end of the auxiliary pipe seat is sleeved on the outside of the narrow portion of the main pipe seat, and the left end of the auxiliary pipe seat is inserted into the tube cavity of the main pipe sleeve portion, a pushing column with an integrated structure is arranged in the middle of the tube cavity of the auxiliary pipe seat, and the pushing column is movably inserted into the tube cavity of the narrow portion of the main pipe seat, and the cylindrical portion of the pushing column is inserted into the tube cavity of the axial pipe portion of the plugging member, an auxiliary pipe sleeve portion with an integrated structure is arranged on the outside of the left section of the auxiliary pipe seat, and the left end of the auxiliary pipe sleeve portion is sleeved on the outside of the main pipe sleeve portion; Wherein, a shifting ring is slidably connected to the outer side of the right section of the auxiliary pipe seat, and a second spring is installed at the connection between the shifting ring and the auxiliary pipe seat.

[0011] Preferably, a third sealing rubber ring is fixedly connected to the right side wall of the tube cavity of the auxiliary tube seat, and the third sealing rubber ring is pressed and sealed against the right side wall of the narrow part of the main tube seat, and a fourth sealing rubber ring is fixedly connected to the left end of the tube opening of the auxiliary tube seat, and the fourth sealing rubber ring is pressed and sealed against the tube cavity wall of the main tube sleeve; Wherein, a locking piece is flipped and connected on the tube wall of the auxiliary tube seat, and a torsion spring is installed at the connection between the locking piece and the auxiliary tube seat.

[0012] Preferably, a fifth sealing rubber ring is fixedly clamped on the left side wall of the pushing column, and the fifth sealing rubber ring is pressed and sealed on the right side wall of the sealing member. A second pin column portion with an integrated structure is provided on the upper and lower sides of the cylindrical portion in the pushing column, and the second pin column portion forms a sliding structure in the spiral groove.

[0013] Preferably, an auxiliary groove is formed on the inner ring wall of the ring-shifting member, and the left groove wall of the auxiliary groove is arranged in an inclined state, and the inclined groove wall in the auxiliary groove is pressed and fitted against the end of the pressure plate in the locking member; Wherein, the hook end of the locking member is connected to the outer seat wall of the narrow portion of the main pipe seat in a locking manner.

[0014] Compared with the prior art, the invention has the following beneficial effects: the sealed joint for the storage tank can realize automatic sealing after disassembly and separation, and can realize automatic locking operation after automatic sealing, effectively preventing accidental opening from causing leakage of the storage tank. In addition, the staggered clamping method is adopted to meet the use requirements of multi-level sealing processing, effectively ensuring the sealing reliability; 1. A main pipe seat wide portion and a plugging piece are provided. After the plugging piece loses the pushing of the pushing column, the elastic deformation of the first spring is used to reset the plugging piece, and the linkage column is reset and slid in the tube cavity of the main pipe seat wide portion. With the pushing of the linkage column by the internal pressure of the storage tank body, the middle narrow portion of the plugging piece and the first sealing rubber ring are inserted and stuck in the tube cavity of the middle narrow portion of the main pipe seat wide portion, and the middle wide portion of the plugging piece and the second sealing rubber ring are inserted and stuck in the tube cavity of the middle wide portion of the main pipe seat wide portion. The first sealing rubber ring and the second sealing rubber ring are used to seal the opening of the flow channel groove. After the auxiliary joint assembly is disassembled and separated, the automatic sealing processing of the main joint assembly is realized, and there is no need to cooperate with the valve for sealing processing. The auxiliary joint is quickly connected or disconnected, which ensures convenient operation. Furthermore, the first spring is utilized to reset by elastic deformation due to extrusion and reset by twisting, and the plugging member is driven to reset and slide in the lumen of the wide part of the main seat and reset and rotate on the linkage column in sequence. When the plugging member resets and slides, the first pin column portion follows the transverse groove path in the "L"-shaped groove, and when the plugging member resets and rotates, the first pin column portion follows the longitudinal groove path in the "L"-shaped groove. Through the restriction of the longitudinal groove path in the "L"-shaped groove on the first pin column portion, the plugging member realizes an automatic locking operation after completing the sealing process, which effectively prevents accidental opening from causing leakage of the storage tank in actual use, and reduces safety hazards in the use of the storage tank. Furthermore, through the sliding cooperation between the second pin column portion and the spiral groove, when the auxiliary joint assembly is docked with the main joint assembly, the pushing column drives the blocking member to rotate on the linkage column by pushing the blocking member, and drives the blocking member and the linkage column to slide in the lumen of the wide part of the main seat. Through the setting of the linkage structure, the automatic opening operation of the blocking member is realized during the docking process, which optimizes the operation steps of the joint docking as a whole and achieves the purpose of simple operation. 2. A main pipe seat narrow part and a sub-pipe seat are provided. When the sub-joint assembly is connected to the main joint assembly, the sub-pipe seat together with the fourth sealing rubber ring is inserted into the tube cavity of the main sleeve part, pressed and sealed on the tube cavity wall of the main sleeve part, and the sub-pipe seat together with the third sealing rubber ring is sleeved on the narrow part of the main pipe seat, pressed and sealed on the right side wall of the narrow part of the main pipe seat, and the push column together with the fifth sealing rubber ring is pressed and sealed on the right side wall of the plugging part. The staggered clamping method is adopted to meet the use requirements of multi-level sealing treatment, which is different from the existing single-layer sealing method and effectively ensures the sealing reliability; Furthermore, after the auxiliary joint assembly is docked with the main joint assembly, the auxiliary pipe seat is sleeved on the narrow part of the main pipe seat, and the elastic deformation of the torsion spring is used to reset the locking piece, so that the locking piece is automatically flipped on the pipe wall of the auxiliary pipe seat, and the hook end of the locking piece is engaged with the outer seat wall of the narrow part of the main pipe seat, thereby realizing the automatic locking operation after docking and placement, and assisting in achieving the purpose of quick disassembly and assembly of the joint. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1This is a schematic diagram of the three-dimensional structure of the present invention in a disassembled state; Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention in a split state in a front view; Figure 3 This is a schematic diagram of the three-dimensional structure of the present invention in a front view and cross section in a combined state; Figure 4 It is a schematic diagram of the three-dimensional structure of the main pipe seat narrow part and the auxiliary pipe seat separated from each other in a front view; Figure 5 It is a schematic diagram of a front view cross-sectional three-dimensional structure of the main pipe seat narrow portion and the auxiliary pipe seat combined in the present invention; Figure 6 This is a schematic diagram of the main joint assembly of the present invention in a disassembled side view of the three-dimensional structure; Figure 7 It is a schematic diagram of the three-dimensional structure of the main seat wide part and the limit seat cover separated from each other from the side; Figure 8 This is a schematic diagram of the three-dimensional structure of the blocking member and the linkage column of the present invention when they are separated; Fig. 9 It is a schematic diagram of a front view cross-sectional three-dimensional structure of the connection between the wide portion of the main pipe seat and the blocking member of the present invention; Fig.10 It is a schematic diagram of the three-dimensional structure of the connection between the plugging member and the spiral groove of the present invention from a side view; Fig.11 This is a schematic diagram of the split front view of the three-dimensional structure of the auxiliary joint assembly of the present invention; Fig.12 It is a schematic diagram of a front view cross-section of the three-dimensional structure of the connection between the auxiliary pipe seat and the locking member of the present invention; Fig.13 It is a schematic diagram of the front cross-sectional three-dimensional structure of the connection between the ring member and the locking member of the present invention.

[0016] In the figure: 1. storage tank body; 2. main joint assembly; 3. auxiliary joint assembly; 4. wide part of main pipe seat; 401. flow channel groove; 402. limit seat cover; 403. "L" shaped groove; 5. narrow part of main pipe seat; 501. main pipe sleeve; 6. plugging member; 601. first pin column; 602. spiral groove; 603. first sealing rubber ring; 604. second sealing rubber ring; 7. linkage column; 8. first spring; 9. auxiliary pipe seat; 901. third sealing rubber ring; 902. fourth sealing rubber ring; 10. pushing column; 1001. fifth sealing rubber ring; 1002. second pin column; 11. auxiliary pipe sleeve; 12. dial ring; 1201. auxiliary groove; 13. second spring; 14. locking member; 15. torsion spring. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions 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 are within the scope of protection of the present invention.

[0018] See also Figure 1-13 The present invention provides a technical solution: a sealed joint for a storage tank, including a storage tank body 1, a main joint component 2 and a secondary joint component 3.

[0019] The sealed joint for the tank is installed before use. Figure 1 , Figure 2 and Figure 3 As shown, the outlet of the storage tank body 1 is provided with an integrated flange pipe port, wherein the pipe cavity of the flange pipe port is connected with the tank cavity thereof, and since the outer seat wall of the main pipe seat wide portion 4 is provided with an integrated flange plate, the center of the flange plate coincides with the center thereof, the main joint assembly 2 is inserted into the pipe cavity of the flange pipe port in the storage tank body 1 in a horizontal state after being placed, that is, the main pipe seat wide portion 4 is inserted and plugged into the pipe cavity of the flange pipe port in the storage tank body 1 after being placed, wherein the flange plate is attached to and fixedly connected to the flange plate body of the flange pipe port in the storage tank body 1 by bolts; Since a rubber sealing gasket is clamped on the flange body of the flange pipe port in the storage tank body 1, after the wide portion 4 of the main pipe seat is placed, the flange and the flange pipe port in the storage tank body 1 are sealed by the rubber sealing gasket, completing the fixed placement operation of the main joint assembly 2 on the storage tank body 1; Since a connecting pipe portion of an integrated structure is horizontally arranged to the right in the middle of the right side of the auxiliary pipe seat 9, the end of the auxiliary joint assembly 3 away from the main joint assembly 2 is connected and fixedly connected to the external pipe, that is, the connecting pipe portion in the auxiliary pipe seat 9 is used for fixing the external pipe, completing the fixing and placement operation of the auxiliary joint assembly 3 on the external pipe; The sealed joint for the storage tank is used for the combined docking operation. The auxiliary joint component 3 is connected to the main joint component 2 by plugging, which realizes the convenient automatic locking operation after plugging and placement, and realizes the multi-level sealing setting after plugging and placement to ensure the sealing reliability. Specifically, according to the attached Figure 2 , Figure 3 , Figure 6 and Fig.11As shown, the main pipe seat narrow part 5 is arranged in an integrated structure at the middle of the right side of the main pipe seat wide part 4, and it is arranged horizontally to the right on the right side of the main pipe seat wide part 4, and the centers of the two coincide. The main pipe seat narrow part 5 and the main pipe seat wide part 4 are combined to form a complete main pipe seat for the main joint assembly 2. Since the tube cavity of the main pipe seat narrow part 5 is arranged in a conical cylindrical structure with a larger left side and a smaller right side, and since the pushing column 10 is arranged in an integrated structure in the middle of the tube cavity of the auxiliary pipe seat 9, and it is arranged horizontally to the left, and is arranged in a co-center state with the auxiliary pipe seat 9, the pushing column 10 is arranged in a conical cylindrical structure with a larger left side and a smaller right side, and the diameter of its left end is smaller than the diameter of the right end of the tube cavity in the main pipe seat narrow part 5. When the auxiliary joint assembly 3 is initially merged and docked with the main joint assembly 2, the left end of the auxiliary pipe seat 9 is sleeved on the outside of the main pipe seat narrow part 5, and the left end of the pushing column 10 is movably inserted into the tube cavity of the main pipe seat narrow part 5; Since an integrated main pipe sleeve portion 501 is arranged on the outer side of the left end of the main pipe seat narrow portion 5, the main pipe sleeve portion 501 is arranged horizontally to the right, and is sleeved on the outer side of the main pipe seat narrow portion 5, the two are arranged concentrically, and the outer longitudinal section thereof is arranged in a polyhedral prism-shaped structure, and since an integrated auxiliary pipe sleeve portion 11 is arranged on the outer side of the left section of the auxiliary pipe seat 9, the auxiliary pipe sleeve portion 11 is arranged horizontally to the left, and is sleeved on the outer side of the auxiliary pipe seat 9, the two are arranged concentrically, and the longitudinal section thereof is arranged in a polyhedral prism-shaped structure, which is adapted to the main pipe sleeve portion 501, the auxiliary joint component 3 is continuously merged and docked toward the main joint component 2 When the auxiliary pipe seat 9 is pushed to move, it is made to slide and dock continuously on the narrow part 5 of the main pipe seat, and the pushing column 10 is made to continuously push and displace in the tube cavity of the narrow part 5 of the main pipe seat. After the auxiliary pipe seat 9 is continuously driven, the left end of the auxiliary pipe seat 9 is inserted into the tube cavity of the main pipe sleeve 501, and the left end of the auxiliary pipe sleeve 11 is sleeved on the outside of the main pipe sleeve 501, and the right end of the narrow part 5 of the main pipe seat is inserted into the tube cavity of the auxiliary pipe seat 9, that is, the left end of the auxiliary pipe seat 9 is inserted into the reserved gap between the main pipe sleeve 501 and the narrow part 5 of the main pipe seat, and the right end of the main pipe sleeve 501 is inserted into the reserved gap between the auxiliary pipe sleeve 11 and the auxiliary pipe seat 9; When the auxiliary pipe sleeve 11 is sleeved and connected with the main pipe sleeve 501, the polyhedral prism structure is provided so that the auxiliary pipe sleeve 11 is arranged on the main pipe sleeve 501 in an active positioning state after docking, that is, the auxiliary pipe seat 9 is limited to prevent its rotation from driving the push column 10 to deflect the position, so that the second pin column part 1002 corresponds to the opening of the straight groove in the spiral groove 602; According to the attached Figure 2 , Figure 3 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 and Fig.11As shown, since a cylindrical portion of an integrated structure is horizontally arranged to the left in the middle of the left side of the push column 10, wherein the upper and lower sides of the cylindrical portion are vertically arranged with a second pin column portion 1002 of an integrated structure, and since a shaft tube portion of an integrated structure is horizontally arranged to the left in the middle of the cover cavity of the plugging member 6, wherein the shaft tube portion is arranged in a co-centric state with the shaft tube portion, and wherein the right end of the shaft tube portion is arranged in an open state, spiral grooves 602 are arranged on the upper and lower side walls of the lumen of the shaft tube portion in the plugging member 6, and an open straight groove is extended to the right at the right end of the spiral groove 602, wherein the straight groove is arranged in a horizontal state, when the auxiliary joint assembly 3 is continuously merged and docked with the main joint assembly 2, the push column 10 is continuously pushed into the lumen of the narrow portion 5 of the main seat, so that the cylindrical portion in the push column 10 is inserted into the lumen of the shaft tube portion in the plugging member 6, and the second pin column portion 1002 is movably clamped into the straight groove in the spiral groove 602; Since the spiral angle of the spiral groove 602 is 90 degrees, the directions of the upper and lower spiral grooves 602 are opposite, and since the spiral groove 602 is connected to the second pin column 1002 by a movable clamping method, after the push column 10 is continuously pushed into the lumen of the narrow portion 5 of the main socket, the second pin column 1002 slides in the spiral groove 602, and the sliding cooperation between the two drives the blocking member 6 to rotate; Since the plugging member 6 is arranged in a circular cover-shaped structure, a first bearing is fixedly sleeved on the outer side of the right end of the shaft tube, and a second bearing is also fixedly clamped on the left side wall. In addition, since an integrated shaft column portion is horizontally arranged to the right in the middle of the tube groove of the linkage column 7, wherein the shaft column portion is arranged in a co-centric state with the linkage column portion, and wherein the end of the shaft column portion is clamped and fixedly connected to the limit plate by bolts, after the linkage column 7 is placed, the right section of the column is movably inserted into the cover cavity of the plugging member 6, and the end of the right section of the column is connected to the plugging member through the first bearing. 6 is rotatably connected, after the linkage column 7 is installed, its right section column is also movably sleeved on the shaft tube portion in the blocking member 6, wherein the shaft column portion movably inserts into the tube cavity of the shaft tube portion in the blocking member 6, and wherein the shaft column portion is rotatably connected with the shaft tube portion in the blocking member 6 through the second bearing, and wherein the shaft column portion together with the limit plate is movably clamped in the tube cavity of the shaft tube portion in the blocking member 6, so that the blocking member 6 is positioned on the linkage column 7 in an active state, and the blocking member 6 is driven to rotate at the right end of the linkage column 7 with the assistance of the shaft tube portion; Since a rubber sealing ring is provided at the connection between the outer side of the right section of the linkage column 7 and the wall of the cover cavity in the blocking member 6, a rubber sealing ring is also provided at the connection between the pipe groove wall and the outer pipe wall of the shaft pipe part of the blocking member 6, and the connection between the two is sealed by the rubber sealing ring; Since the limit seat cover 402 is clamped and connected to the left side of the main seat wide part 4 by bolts after installation, it blocks the left cavity opening of the middle wide part of the main seat wide part 4, and since the longitudinal section of the linkage column 7 is a "T"-shaped structure, wherein the longitudinal section of the left section of the column is a polyhedral prism structure, the linkage column 7 is movably inserted through the middle part of the limit seat cover 402 after installation, so that the linkage column 7 is positioned on the limit seat cover 402 in an active state, that is, the linkage column 7 and the blocking member 6 constitute a synchronous sliding structure, but the linkage column 7 and the blocking member 6 do not constitute a synchronous rotating structure; Since the first spring 8 is installed at the connection between the blocking member 6 and the limit seat cover 402, the first spring 8 is movably sleeved on the outer side of the linkage column 7 after being installed, one end of the first spring 8 is inserted into the spring compartment in the blocking member 6 and fixedly connected to the compartment wall by bolts, and the other end of the first spring 8 is inserted into the spring compartment in the limit seat cover 402 and fixedly connected to the compartment wall by bolts. When the blocking member 6 is driven to rotate, the first spring 8 is subjected to the twisting force and elastically deformed; Since "L"-shaped grooves 403 are provided on the upper and lower walls of the wide part of the tube cavity of the main seat wide part 4, the "L"-shaped groove 403 is divided into two parts, a longitudinal groove and a transverse groove, and the upper and lower "L"-shaped grooves 403 are arranged in opposite directions. The longitudinal groove in the "L"-shaped groove 403 is arranged in an arc structure, wherein the arc size of the longitudinal groove is 90 degrees, and the arc center of the longitudinal groove coincides with the tube center of the tube cavity of the wide part of the main seat wide part 4. In addition, since the upper and lower sides of the wide part of the plugging member 6 are provided with an integrated structure The first pin column part 601 is arranged in a vertical state and is movably inserted in the "L"-shaped groove 403. When the blocking member 6 is driven to rotate, the first pin column part 601 slides in the longitudinal groove path in the "L"-shaped groove 403. After the blocking member 6 is driven to rotate, the first pin column part 601 slides to the connecting point of the longitudinal groove path and the transverse groove path in the "L"-shaped groove 403, so that the longitudinal groove path in the "L"-shaped groove 403 loses its limiting effect on the first pin column part 601, and the unlocking process of the blocking member 6 is completed; Since the transverse groove in the "L"-shaped groove 403 is arranged horizontally to the left, the left end of the transverse groove is arranged in an open state, and the length of the transverse groove is greater than the maximum sliding distance of the blocking member 6, the pushing column 10 continues to push into the tube cavity of the narrow portion 5 of the main seat. After the blocking member 6 is unlocked, the blocking member 6 is pushed by the pushing column 10 to move synchronously, so that the blocking member 6 slides in the tube cavity of the wide portion 4 of the main seat, and the first pin column part 601 slides along the transverse groove in the "L"-shaped groove 403. When the blocking member 6 is pushed to slide, the linkage column 7 slides in the middle of the limit seat cover 402, and the first spring 8 is further elastically deformed by the extrusion force; According to the attached Figure 2 , Figure 3 , Fig. 9 and Fig.13As shown, since the third sealing rubber ring 901 is fixedly clamped on the right tube cavity wall of the auxiliary tube seat 9, and the fourth sealing rubber ring 902 is fixedly clamped on the left end tube mouth of the auxiliary tube seat 9, after the auxiliary joint assembly 3 is merged and docked with the main joint assembly 2, the left end of the auxiliary tube seat 9 is completely inserted into the tube cavity of the main tube sleeve part 501, and the fourth sealing rubber ring 902 is sleeved on the outside of the narrow part 5 of the main tube seat, and it is pressed and sealed on the tube cavity wall of the main tube sleeve part 501, and a first layer of sealing treatment after docking is performed, and the right end of the narrow part 5 of the main tube seat is completely inserted into the tube cavity of the auxiliary tube seat 9, and the third sealing rubber ring 901 is clamped on the right side wall of the narrow part 5 of the main tube seat, and it is pressed and sealed on the right side wall of the narrow part 5 of the main tube seat, and a second layer of sealing treatment after docking is performed; Since the left side wall of the push column 10 is fixedly connected with the fifth sealing rubber ring 1001, after the auxiliary joint assembly 3 is merged and docked with the main joint assembly 2, the left side wall of the push column 10 is pressed and contacted with the right side wall of the plugging member 6, and the fifth sealing rubber ring 1001 is set on the outside of the tube cavity opening of the central axis tube part of the plugging member 6, and is clamped on the right side wall of the plugging member 6, and is set in a pressed and sealed state, so as to perform a three-layer sealing process after docking; According to the attached Figure 2 , Figure 3 , Fig.11 , Fig.12 and Fig.13 As shown, the left end of the locking member 14 is a hook end, and the right end is a pressure plate end, which is arranged in a circular array with the center of the auxiliary tube seat 9 as the center of the circle. Since the middle part of the locking member 14 is rotatably connected with a shaft column, it is movably mounted in the tube wall groove cavity of the auxiliary tube seat 9 after being installed, wherein the shaft column is inserted into the groove cavity wall, and wherein the hook end extends into the tube cavity of the auxiliary tube seat 9, and wherein the pressure plate end extends to the outside of the auxiliary tube seat 9, and since a torsion spring 15 is installed at the connection between the locking member 14 and the auxiliary tube seat 9, the torsion spring 15 is movably sleeved on the middle axis of the locking member 14 after being installed. The auxiliary pipe seat 9 is connected to the main pipe seat 9 by the locking piece 14. The other end of the locking piece 14 is connected to the groove wall of the auxiliary pipe seat 9. After the auxiliary joint assembly 3 is merged and docked with the main joint assembly 2, the auxiliary pipe seat 9 is docked with the narrow part 5 of the main pipe seat. The elastic deformation of the torsion spring 15 is reset to reset the locking piece 14 on the pipe wall of the auxiliary pipe seat 9, and the hook end of the locking piece 14 is connected with the outer wall of the narrow part 5 of the main pipe seat to lock the auxiliary pipe seat 9, that is, the self-locking between the auxiliary joint assembly 3 and the main joint assembly 2 after docking is completed. The sealed joint for storage tank is in use according to the attached Figure 4 , Figure 5 , Figure 7 and Fig.12As shown, the longitudinal section of the tube cavity of the wide portion 4 of the main seat is arranged in a "convex"-shaped structure state, and is divided into two parts, the wide tube cavity and the narrow tube cavity, from left to right. Since the longitudinal section of the plugging member 6 is arranged in a "convex"-shaped structure state, it is adapted to the seat cavity of the wide portion 4 of the main seat. After the plugging member 6 is installed, the narrow portion thereof is movably inserted in the narrow tube cavity of the wide portion 4 of the main seat, and the wide portion thereof is movably inserted in the wide tube cavity of the wide portion 4 of the main seat, and the auxiliary joint assembly 3 is merged and docked with the main joint assembly 2. After the plugging member 6 is pushed and slid by the pushing column 10, the first sealing rubber ring 603 loses its shielding effect on the right end opening of the flow channel groove 401, that is, the first sealing rubber ring 603 is placed on the left side of the opening in the flow channel groove 401, and the left side sealing treatment is performed to keep the opening in the flow channel groove 401 in an open state; Since the limiting seat cover 402 is provided with flow openings at equal intervals, wherein the flow openings are arranged in a circular array with the center of the flow openings as the center of the circle, and each flow opening is arranged in a one-to-one correspondence with each flow channel groove 401, and since the seat wall of the main seat wide portion 4 is provided with flow channel grooves 401, the flow channel grooves 401 are arranged in a circular array with the center of the main seat wide portion 4 as the center of the circle, and the left and right ends thereof are arranged in an open state, and the right end thereof extends to the cavity wall of the narrow portion lumen in the main seat wide portion 4 and is connected to the narrow portion lumen, and the left end thereof is connected to the flow opening in the limiting seat cover 402, the material in the storage tank body 1 passes through the flow opening and the flow channel groove 401 in the limiting seat cover 402 in turn, enters the narrow portion lumen in the main seat wide portion 4, and the seat cavity of the main seat narrow portion 5 is connected to the seat cavity of the main seat wide portion 4, and enters the seat cavity of the main seat narrow portion 5; Since the pushing column 10 is adapted to the lumen of the narrow part 5 of the main pipe seat, a gap is reserved between the pushing column 10 and the lumen wall of the narrow part 5 of the main pipe seat after docking to form a flow channel. After the material in the storage tank body 1 enters the seat cavity of the narrow part 5 of the main pipe seat, it enters the flow channel between the narrow part 5 of the main pipe seat and the pushing column 10. Moreover, since flow openings are evenly spaced on the lumen wall of the right side of the auxiliary pipe seat 9, the flow openings are arranged in a circular array with the center of the circle as the center, and the flow openings are used for the connection between the lumen in the auxiliary pipe seat 9 and the lumen in the connecting pipe part, the material enters the connecting pipe part through the flow opening in the auxiliary pipe seat 9, and then is transported through the external pipeline; The sealed joint for the storage tank is disassembled and separated after use. The main joint component 2 is fixedly arranged at the flange pipe port in the storage tank body 1, and the auxiliary joint component 3 constitutes a disassembly structure on the main joint component 2, which realizes the automatic sealing processing after the auxiliary joint component 3 is disassembled, and the automatic locking operation is completed after the automatic sealing to prevent accidental opening and leakage of the storage tank. According to the above, according to the attached Figure 2 , Figure 3 , Figure 8 , Fig. 9 , Fig.12 and Fig.13As shown, the right end of the auxiliary tube seat 9 is clamped and connected with the seat cover part by bolts. Since the shifting ring 12 is movably sleeved on the outside of the right section of the auxiliary tube seat 9 after being placed, and since a second spring 13 is installed at the connection between the shifting ring 12 and the auxiliary tube seat 9, the second spring 13 is movably sleeved on the outside of the auxiliary tube seat 9 after being placed, one end of which is inserted into the spring compartment of the seat cover part of the auxiliary tube seat 9 and pressed against the compartment wall, and the other end of which is inserted into the spring compartment of the shifting ring 12 and pressed against the compartment wall. The shifting ring 12 is slid on the outside of the right section of the auxiliary tube seat 9, so that the second spring 13 is squeezed and elastically deformed, and then the second spring 13 is reset by elastic deformation, and the automatic reset sliding of the auxiliary shifting ring 12 is assisted; Since the inner ring wall of the ring 12 is recessed inwardly and an auxiliary groove 1201 is provided, the left groove wall of the auxiliary groove 1201 is arranged in an inclined state, and since the auxiliary groove 1201 reserves a turning space for the pressure plate end in the locking member 14, after the locking member 14 is placed, the pressure plate end is movably inserted in the auxiliary groove 1201. After the ring 12 slides, the inclined side wall in the auxiliary groove 1201 fits and presses against the pressure plate end in the locking member 14, pressing the locking member 14 to turn over on the tube wall of the auxiliary pipe seat 9, so that the torsion spring 15 is squeezed and elastically deformed, and the hook end in the locking member 14 loses the engagement with the outer seat wall of the narrow part 5 of the main pipe seat, unlocking the locking of the auxiliary pipe seat 9, and completing the disassembly and separation operation between the auxiliary joint assembly 3 and the main joint assembly 2 by pulling. Since the right end of the narrow part of the plugging member 6 is fixedly connected with the first sealing rubber ring 603, and the connection between the narrow part and the wide part of the plugging member 6 is fixedly connected with the second sealing rubber ring 604, after the auxiliary joint assembly 3 and the main joint assembly 2 are disassembled and separated, the pushing column 10 loses the pushing of the plugging member 6, and the first spring 8 is used to reset the elastic deformation by squeezing and the elastic deformation by twisting, and the first pin column part 601 and the "L"-shaped groove 403 are slidably matched to perform the reset sliding and reset rotation of the plugging member 6 in turn, and the first sealing rubber ring 603 is stuck in the narrow part of the tube cavity of the wide part 4 of the main seat, pressing against the plugging member 6. The connection between the narrow tube cavity in the wide part 4 of the main pipe seat and the narrow tube cavity in the narrow part 5 of the main pipe seat is sealed, and the second sealing rubber ring 604 is stuck in the wide tube cavity in the wide part of the main pipe seat 4, and is pressed and sealed at the connection between the wide tube cavity in the wide part 4 of the main pipe seat and the narrow tube cavity in the wide part 4 of the main pipe seat. The gap between the first sealing rubber ring 603 and the second sealing rubber ring 604 corresponds to the right end opening of the flow channel groove 401, completing the sealing treatment of the opening of the flow channel groove 401, and the first pin column part 601 is limited by the longitudinal groove in the "L"-shaped groove 403, completing the self-locking treatment after the plugging member 6 is reset; This is the entire working process of the sealed joint for the storage tank. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0020] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the instructions and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0021] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sealed joint for a storage tank, comprising: A storage tank body (1), wherein an outlet of the storage tank body (1) is provided with a flange pipe port of an integrated structure; It is characterized by further comprising: A main joint assembly (2), the main joint assembly (2) being fixedly arranged at the flange pipe port in the storage tank body (1), realizing automatic sealing after the auxiliary joint assembly (3) is disassembled, and completing automatic locking after automatic sealing to prevent accidental opening causing leakage of the storage tank; The auxiliary joint assembly (3) is connected to the main joint assembly (2) by plugging, and realizes a convenient automatic locking operation after plugging and placement, and realizes a multi-level sealing setting after plugging and placement, thereby ensuring sealing reliability.

2. A sealed joint for a storage tank according to claim 1, characterized in that: The main joint assembly (2) comprises a main pipe seat wide portion (4), a main pipe seat narrow portion (5), a plugging piece (6) and a linkage column (7); the main pipe seat wide portion (4) is plugged into a tube cavity of a flange pipe port in a storage tank body (1); a flange in the main pipe seat wide portion (4) is fixedly connected to a flange body of the flange pipe port in the storage tank body (1) by bolts; a main pipe seat narrow portion (5) of an integrated structure is provided in the middle of the right side of the main pipe seat wide portion (4); and a main pipe sleeve portion (501) of an integrated structure is provided on the outer side of the left end of the main pipe seat narrow portion (5); A blocking piece (6) is slidably connected in the lumen of the wide portion (4) of the main pipe seat, and the blocking piece (6) is connected to the right end of the linkage column (7) through auxiliary rotation of the shaft tube portion thereof.

3. A sealed joint for a storage tank according to claim 2, characterized in that: A flow channel groove (401) is provided in the seat wall of the wide portion (4) of the main seat, and the right end of the flow channel groove (401) extends to the cavity wall of the narrow portion lumen of the wide portion (4) of the main seat and is in communication with the narrow portion lumen; The left side of the main pipe seat wide portion (4) is fixedly connected to the limit seat cover (402) by means of bolts, and the flow opening in the limit seat cover (402) is connected to the left end of the flow channel groove (401); Wherein, "L"-shaped grooves (403) are provided on the upper and lower side walls of the lumen of the middle wide portion of the main pipe seat wide portion (4).

4. A sealed joint for a storage tank according to claim 2, characterized in that: A first pin column portion (601) of an integrated structure is provided on both upper and lower sides of the middle width portion of the blocking member (6), and the first pin column portion (601) forms a sliding structure in the "L"-shaped groove (403), and a first spring (8) is installed at the connection between the blocking member (6) and the limit seat cover (402); Wherein, spiral grooves (602) are provided on the upper and lower tube cavity walls of the central axis tube portion of the blocking member (6), and a straight groove in an open state is provided at the right end of the spiral groove (602); Wherein, the middle portion of the position-limiting seat cover (402) is connected to the linkage column (7) in a sliding manner.

5. A sealed joint for a storage tank according to claim 4, characterized in that: A first sealing rubber ring (603) is fixedly connected to the right end of the narrow portion of the plugging member (6), and the first sealing rubber ring (603) is pressed and sealed at the connection between the narrow portion of the wide portion (4) of the main pipe seat and the middle portion (5) of the narrow portion of the main pipe seat; a second sealing rubber ring (604) is fixedly connected to the connection between the narrow portion and the wide portion of the plugging member (6), and the second sealing rubber ring (604) is pressed and sealed at the connection between the wide portion and the narrow portion of the wide portion (4) of the main pipe seat; The gap between the first sealing rubber ring (603) and the second sealing rubber ring (604) corresponds to the right end opening of the flow channel groove (401).

6. The sealed joint for a storage tank according to claim 1, characterized in that: The auxiliary joint assembly (3) comprises an auxiliary pipe seat (9), a pushing column (10) and an auxiliary pipe sleeve (11); the left end of the auxiliary pipe seat (9) is sleeved on the outside of the narrow portion (5) of the main pipe seat, and the left end of the auxiliary pipe seat (9) is inserted into the tube cavity of the main pipe sleeve (501); a pushing column (10) with an integrated structure is arranged in the middle of the tube cavity of the auxiliary pipe seat (9), and the pushing column (10) is movably inserted into the tube cavity of the narrow portion (5) of the main pipe seat, and the cylindrical portion of the pushing column (10) is inserted into the tube cavity of the axial pipe portion of the plugging member (6); an auxiliary pipe sleeve (11) with an integrated structure is arranged on the outside of the left section of the auxiliary pipe seat (9), and the left end of the auxiliary pipe sleeve (11) is sleeved on the outside of the main pipe sleeve (501); A shifting ring (12) is slidably connected to the outer side of the right section of the auxiliary pipe seat (9), and a second spring (13) is installed at the connection between the shifting ring (12) and the auxiliary pipe seat (9).

7. A sealed joint for a storage tank according to claim 6, characterized in that: A third sealing rubber ring (901) is fixedly clamped on the right side wall of the tube cavity of the auxiliary tube seat (9), and the third sealing rubber ring (901) is pressed and sealed against the right side wall of the narrow portion (5) of the main tube seat; a fourth sealing rubber ring (902) is fixedly clamped on the left end of the tube opening of the auxiliary tube seat (9), and the fourth sealing rubber ring (902) is pressed and sealed against the tube cavity wall of the main tube sleeve (501); A locking piece (14) is flipped and connected to the tube wall of the auxiliary tube seat (9), and a torsion spring (15) is installed at the connection between the locking piece (14) and the auxiliary tube seat (9).

8. The sealed joint for a storage tank according to claim 6, characterized in that: A fifth sealing rubber ring (1001) is fixedly connected to the left side wall of the push column (10), and the fifth sealing rubber ring (1001) is pressed and sealed against the right side wall of the sealing member (6). The upper and lower sides of the cylindrical part of the push column (10) are provided with a second pin column part (1002) of an integrated structure, and the second pin column part (1002) forms a sliding structure in the spiral groove (602).

9. A sealed joint for a storage tank according to claim 6, characterized in that: The inner ring wall of the ring member (12) is recessed inwardly to form an auxiliary groove (1201), and the left groove wall of the auxiliary groove (1201) is arranged in an inclined state, and the inclined groove wall of the auxiliary groove (1201) is pressed and fitted against the end of the pressure plate in the locking member (14); The hook end of the locking member (14) is connected to the outer seat wall of the narrow portion (5) of the main pipe seat in a locking manner.

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