A quick-opening sealing connection structure for a pressure vessel

Abstract

The utility model relates to a kind of quick-opening type sealing connection structure for pressure vessel, is composed of connecting pipe and quick-opening mechanism, to realize the quick locking of pressure vessel, reliable sealing and convenient unlocking, connecting pipe opening is equipped with groove and sealing ring, inner wall has two groups annular blocks to form annular groove, limit groove is equipped in annular groove, and connecting pipe has inner cavity with slider and spring;Quick-opening mechanism includes fixed disc, limit disc, rotating shaft, special-shaped block and the like component, there is detachable connecting plate on limit disc, when butting, the butt joint block of fixed disc is inserted into the butt joint groove of connecting pipe, realize accurate pre-positioning, when locking, rotating rotating shaft after pressing fixed disc, special-shaped block pushes slider and makes arc limit block embed annular groove, limit component inserts into limit groove, and multiple limit is formed by cooperating slider.Sealing is realized by fixed disc pressing sealing ring, when unlocking, make moving block and top block linkage by rotating rotating shaft, cooperate tension spring to realize arc limit block disengagement.

Description

Technical Field

[0001] This utility model relates to the field of pressure vessels, and in particular to a quick-opening sealing connection structure for pressure vessels. Background Technology

[0002] In modern industrial production, pressure vessels such as storage tanks and sealed containers are widely used in many fields, including petroleum, chemical, food, and pharmaceutical industries, for storing and transporting various liquids, gases, or powders. During operation, these containers often need to be frequently opened and closed according to the needs of the production process to facilitate the loading and unloading of materials and the maintenance and repair of equipment.

[0003] Currently, traditional pressure vessel connection methods, such as the common flange connection, although possessing certain sealing performance and connection strength, have revealed many drawbacks in actual use. In terms of ease of operation, flange connections require a large number of bolts and nuts for tightening, and the opening and closing process is cumbersome, requiring a lot of time and manpower. In addition, due to frequent disassembly and installation, bolts and nuts are prone to wear and corrosion, requiring regular replacement, which further increases maintenance costs.

[0004] Therefore, it is urgent to develop a new, efficient, safe and economical quick-opening connection method for pressure vessels, which is of great significance for improving production efficiency, reducing costs and ensuring safe production. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a quick-opening sealing connection structure for pressure vessels.

[0006] The quick-opening sealing connection structure for pressure vessels provided by this utility model adopts the following technical solution:

[0007] A quick-opening sealing connection structure for pressure vessels includes a connecting pipe and a quick-opening mechanism; the opening of the connecting pipe is provided with a groove, a sealing ring is provided on the groove, and two sets of spaced-apart annular blocks are provided on the inner wall of the connecting pipe, with an annular groove formed between the spaced-apart annular blocks.

[0008] The quick-opening mechanism includes a fixed plate, a limiting plate, a rotating shaft, a shaped block, a tension spring, a sliding rod, and an arc-shaped limiting block. The fixed plate is connected to the limiting plate at intervals via pins. The rotating shaft is rotatably connected to the fixed plate. The end of the rotating shaft is connected to the shaped block, and the rotating shaft drives the shaped block to rotate. The outer wall of the shaped block is wavy. The shaped block is disposed inside the limiting plate and is coaxial with the limiting plate. Several sliding grooves are formed on the side wall of the limiting plate. The sliding rod slides in the sliding grooves. One end of the sliding rod abuts against the wavy outer wall of the shaped block, and the other end of the sliding rod is connected to the arc-shaped limiting block. The tension spring is disposed on the outer wall of the limiting plate, and both ends of the tension spring are respectively fixed at the waist of the adjacent sliding rod.

[0009] The diameter of the fixing plate is the same as the diameter of the groove. When the fixing plate is placed on the groove, the side wall of the arc-shaped limiting block is aligned with the annular groove.

[0010] Optionally, the annular block has several through grooves, and several limiting grooves are provided in the annular grooves. The outer wall of the arc-shaped limiting block is provided with a limiting component, and the limiting component is inserted into the limiting groove.

[0011] Optionally, the connecting tube is further provided with an inner cavity, which communicates with the limiting groove. The inner cavity is provided with a slider and a spring that restrict movement. The slider extends into the limiting groove under the action of the spring. The end of the slider is smooth. The limiting assembly includes a connecting post, a limiting piece, a top block, and a moving block. The top block is disposed at the end of the connecting post. The moving block is slidably connected to the connecting post. The outer wall of the top block is set as an arc-shaped convex surface, and the inner wall of the top block is set as an arc-shaped concave surface. The moving block can be embedded in the arc-shaped concave surface. Both the top block and the moving block are magnetic and repel each other.

[0012] Optionally, the limiting plate is provided with a connecting plate, which is detachably connected to the limiting plate by bolts.

[0013] Optionally, the opening of the connecting pipe is further provided with a docking groove, and the outer wall of the fixing plate is correspondingly provided with a docking block. When the docking block is fully inserted into the docking groove, the limiting component is aligned with the limiting groove.

[0014] Optionally, a handle is provided at the end of the rotating shaft.

[0015] In summary, this utility model has at least one of the following beneficial technical effects:

[0016] 1. Press the fixing plate firmly onto the sealing ring in the groove. Rotate the shaft to drive the wavy block to rotate. The wavy outer wall of the block and the slide rod form a cam drive structure. When the protruding part of the block contacts the slide rod, it will push the slide rod to slide outward along the groove of the limiting plate, so that the arc-shaped limiting block is embedded in the annular groove of the inner wall of the connecting pipe, thus completing the locking of the connection. When the concave part of the block turns to the slide rod, the restoring force of the tension spring pulls the slide rod inward to retract, and the arc-shaped limiting block disengages from the annular groove, thus achieving quick unlocking.

[0017] 2. The arc-shaped convex surface of the top block fits against the inner wall of the limiting groove, restricting the rotation of the arc-shaped limiting block in the circumferential direction; after the arc-shaped convex surface of the top block enters the limiting groove, it slowly presses against the slider and pushes the slider into the inner cavity. After the top block passes, the slider moves downward under the action of the spring, forming a limit. When it is necessary to remove it, continue to rotate the shaft, so that the connecting column continues to move into the limiting groove (Note: there is a certain gap between the arc-shaped limiting block and the annular groove, which allows it to continue to expand outward). At this time, the moving block applies pressure to the slider and continues to press the slider into the inner cavity. After the moving block passes, the shaft is reversed. At this time, the moving block is embedded in the arc-shaped concave surface of the top block and moves outward together, pressing the slider into the inner cavity, thus achieving separation.

[0018] 3. The process of inserting the docking block along the docking groove forms a guide rail. The operator does not need to repeatedly adjust the angle. He can judge whether the limiting component and the limiting groove are accurately aligned by simply observing whether the docking block is fully embedded in the docking groove. The interlocking structure of the docking block and the docking groove forms an additional constraint in the circumferential direction, which is combined with the radial locking of the arc-shaped limiting block. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a quick-opening sealing connection structure for pressure vessels.

[0020] Figure 2 This is an exploded view of the connecting pipe and quick-opening mechanism.

[0021] Figure 3 yes Figure 2 Enlarged view of part A in the middle.

[0022] Figure 4 This is a partial sectional view of the connecting pipe and quick-opening mechanism.

[0023] Figure 5 yes Figure 4 Enlarged view of section B in the middle.

[0024] Explanation of reference numerals in the attached drawings: 1. Connecting pipe; 101. Groove; 102. Sealing ring; 103. Annular block; 104. Annular groove; 105. Through groove; 106. Limiting groove; 107. Inner cavity; 108. Slider; 109. Spring; 110. Docking groove; 2. Quick-opening mechanism; 201. Fixed plate; 202. Limiting plate; 203. Rotating shaft; 204. Irregular block; 205. Tension spring; 206. Slide rod; 207. Arc-shaped limiting block; 208. Connecting plate; 209. Handle; 210. Docking block; 3. Limiting assembly; 301. Connecting column; 302. Limiting piece; 303. Top block; 304. Moving block. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0027] Furthermore, "several" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0028] This utility model discloses a quick-opening sealing connection structure for pressure vessels. (Refer to...) Figure 1-5 A quick-opening sealing connection structure for pressure vessels includes a connecting pipe 1 and a quick-opening mechanism 2; a groove 101 is provided at the opening of the connecting pipe 1, a sealing ring 102 is provided on the groove 101, and two sets of spaced annular blocks 103 are provided on the inner wall of the connecting pipe 1, forming an annular groove 104 between the spaced annular blocks 103.

[0029] The quick-opening mechanism 2 includes a fixed plate 201, a limiting plate 202, a rotating shaft 203, a shaped block 204, a tension spring 205, a slide rod 206, and an arc-shaped limiting block 207. The fixed plate 201 is connected to the limiting plate 202 at intervals via pins. The rotating shaft 203 is rotatably connected to the fixed plate 201. The end of the rotating shaft 203 is connected to the shaped block 204, which drives the shaped block 204 to rotate. The outer wall of the shaped block 204 is wavy. The shaped block 204 is disposed inside the limiting plate 202 and is coaxial with the limiting plate 202. The side wall of the limiting plate 202 is provided with several sliding grooves. The sliding rod 206 slides in the sliding grooves. One end of the sliding rod 206 abuts against the corrugated outer wall of the irregular block 204, and the other end of the sliding rod 206 is connected to the arc-shaped limiting block 207. The tension spring 205 is provided on the outer side wall of the limiting plate 202, and the two ends of the tension spring 205 are respectively fixed at the waist of the adjacent sliding rod 206. The diameter of the fixing plate 201 is the same as the diameter of the groove 101. When the fixing plate 201 is placed on the groove 101, the side wall of the arc-shaped limiting block 207 is aligned with the annular groove 104.

[0030] With this design, the fixed plate 201 is pressed tightly against the sealing ring on the groove 101. The rotating shaft 203 drives the wavy block 204 to rotate. The wavy outer wall of the block 204 and the slide rod 206 form a cam transmission structure. When the protruding part of the block 204 contacts the slide rod 206, it pushes the slide rod 206 to slide outward along the groove of the limiting plate 202, so that the arc-shaped limiting block 207 is embedded in the annular groove 104 on the inner wall of the connecting pipe 1, thus completing the locking of the connection. When the concave part of the block 204 turns to the slide rod 206, the restoring force of the tension spring 205 pulls the slide rod 206 to retract inward, and the arc-shaped limiting block 207 disengages from the annular groove 104, thus achieving quick unlocking.

[0031] The annular block 103 has several through grooves 105, and several limiting grooves 106 are provided in the annular grooves 104. The outer wall of the arc-shaped limiting block 207 is provided with a limiting component 3, which is inserted into the limiting groove 106. The connecting pipe 1 is also provided in the inner cavity 107, which is connected to the limiting groove 106. The inner cavity 107 is provided with a slider 108 and a spring 109 that restrict movement. The slider 108 extends into the limiting groove 106 under the action of the spring 109. The end of the slider 108 is smooth. The limiting component 3 includes a connecting post 301. The device includes a limiting piece 302, a top block 303, and a movable block 304. The top block 303 is located at the end of the connecting post 301, and the movable block 304 is slidably connected to the connecting post 301. The outer wall of the top block 303 is an arc-shaped convex surface, and the inner wall of the top block 303 is an arc-shaped concave surface. The movable block 304 can be embedded in the arc-shaped concave surface. Both the top block 303 and the movable block 304 are magnetic and repel each other. The advantage of this design is that the arc-shaped convex surface of the top block 303 fits against the inner wall of the limiting groove 106, restricting the rotation of the arc-shaped limiting block 207 in the circumferential direction.

[0032] After the arc-shaped convex surface of the top block 303 enters the limiting groove 106, it slowly presses against the slider 108 and pushes the slider 108 into the inner cavity 107. After the top block 303 passes through, the slider 108 moves downward under the action of the spring 109, forming a limit. When it is necessary to remove it, continue to rotate the shaft 203 so that the connecting column 301 continues to move into the limiting groove 106 (Note: There is a certain gap between the arc-shaped limiting block 207 and the annular groove 104, which allows it to continue to expand outward). At this time, the moving block 304 applies pressure to the slider 108 and continues to press the slider 108 into the inner cavity 107. After the moving block 304 passes through, the shaft 203 is reversed. At this time, the moving block 304 is embedded in the arc-shaped concave surface of the top block 303 and moves outward together, pressing the slider 108 into the inner cavity 107, and then it can be disengaged.

[0033] A connecting plate 208 is provided on the limiting plate 202. The connecting plate 208 is detachably connected to the limiting plate 202 by bolts. A docking groove 110 is also provided at the opening of the connecting pipe 1. A docking block 210 is correspondingly provided on the outer wall of the fixing plate 201. When the docking block 210 is fully inserted into the docking groove 110, the limiting component 3 is aligned with the limiting groove 106. When the fixing plate 201 docks with the connecting pipe 1, the docking block 210 acts as a guide rail during the insertion process along the docking groove 110. The operator does not need to repeatedly adjust the angle. He can judge whether the limiting component 3 and the limiting groove 106 are accurately aligned by simply observing whether the docking block 210 is fully embedded in the docking groove 110. The fitting structure of the docking block 210 and the docking groove 110 forms an additional constraint in the circumferential direction, which is combined with the radial locking of the arc-shaped limiting block 207.

[0034] The principle of this utility model is as follows: The structure consists of a connecting pipe 1 and a quick-opening mechanism 2. Through coordinated operation, it can quickly lock, seal and unlock. The sealing ring 102 of the groove 101 of the connecting pipe 1 is the sealing base. The annular block 103 forms an annular groove 104 with a limiting groove 106 inside. It is also connected to an inner cavity 107 with a slider 108 and a spring 109. The quick-opening mechanism 2 includes components such as a fixed plate 201, a limiting plate 202, and a rotating shaft 203. When locking, after pressing the fixed plate 201, the rotating shaft 203 is turned. The wave-shaped irregular block 204 pushes the slide rod 206, so that the arc-shaped limiting block 207 is embedded in the annular groove 104 to complete radial locking. Simultaneously, the limiting component 3 is inserted into the limiting groove 106, the top block 303 restricts circumferential rotation, the slider 108 resets to limit the top block 303 a second time, and the sealing ring 102 of the sealing groove 101 is pressed by the sealing plate 201 to deform and fill the gap. When unlocking, the rotating shaft 203 moves the connecting column 301 inward, and the moving block 304 presses the slider 108 into the inner cavity 107. The rotating shaft 203 is reversed, and the moving block 304 and the top block 303 work together to press the slider 108 again. Then the tension spring 205 pulls the sliding rod 206, and the arc-shaped limiting block 207 disengages from the annular groove 104, achieving fast and efficient disassembly.

[0035] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A quick-opening sealing connection structure for pressure vessels, characterized in that: It includes a connecting pipe (1) and a quick-opening mechanism (2); the opening of the connecting pipe (1) is provided with a groove (101), a sealing ring (102) is provided on the groove (101), and two sets of spaced annular blocks (103) are provided on the inner wall of the connecting pipe (1), and an annular groove (104) is formed between the spaced annular blocks (103). The quick-opening mechanism (2) includes a fixed plate (201), a limiting plate (202), a rotating shaft (203), a shaped block (204), a tension spring (205), a slide rod (206), and an arc-shaped limiting block (207). The fixed plate (201) is connected to the limiting plate (202) at intervals via pins. The rotating shaft (203) is rotatably connected to the fixed plate (201). The end of the rotating shaft (203) is connected to the shaped block (204). The rotating shaft (203) drives the shaped block (204) to rotate. The outer wall of the shaped block (204) is set to a wave shape. A shaped block (204) is disposed inside the limiting disk (202). The shaped block (204) is coaxial with the limiting disk (202). Several sliding grooves are provided on the side wall of the limiting disk (202). The sliding rod (206) slides in cooperation with the sliding groove. One end of the sliding rod (206) abuts against the corrugated outer wall of the shaped block (204). The other end of the sliding rod (206) is connected to the arc-shaped limiting block (207). The tension spring (205) is disposed on the outer side wall of the limiting disk (202), and the two ends of the tension spring (205) are respectively fixed at the waist of the adjacent sliding rod (206). The diameter of the fixing plate (201) is the same as the diameter of the groove (101). When the fixing plate (201) is placed on the groove (101), the side wall of the arc-shaped limiting block (207) is aligned with the annular groove (104).

2. The quick-opening sealing connection structure for pressure vessels according to claim 1, characterized in that: The annular block (103) has several through grooves (105), and several limiting grooves (106) are provided in the annular grooves (104). The outer wall of the arc-shaped limiting block (207) is provided with a limiting component (3), and the limiting component (3) is inserted into the limiting groove (106).

3. The quick-opening sealing connection structure for pressure vessels according to claim 2, characterized in that: The connecting tube (1) is further provided with an inner cavity (107), which is connected to the limiting groove (106). The inner cavity (107) is provided with a slider (108) and a spring (109) that restrict movement. The slider (108) extends into the limiting groove (106) under the action of the spring (109). The end of the slider (108) is smooth. The limiting assembly (3) includes a connecting post (301), a limiting piece (302), and a top block. (303) and a movable block (304), wherein the top block (303) is disposed at the end of the connecting post (301), and the movable block (304) is slidably connected to the connecting post (301). The outer wall of the top block (303) is configured as an arc-shaped convex surface, and the inner wall of the top block (303) is configured as an arc-shaped concave surface. The movable block (304) can be embedded in the arc-shaped concave surface. Both the top block (303) and the movable block (304) are magnetic and repel each other.

4. The quick-opening sealing connection structure for pressure vessels according to claim 1, characterized in that: The limiting plate (202) is provided with a connecting plate (208), which is detachably connected to the limiting plate (202) by bolts.

5. A quick-opening sealing connection structure for pressure vessels according to claim 3, characterized in that: The opening of the connecting pipe (1) is also provided with a docking groove (110), and the outer wall of the fixing plate (201) is provided with a docking block (210). When the docking block (210) is fully inserted into the docking groove (110), the limiting component (3) is aligned with the limiting groove (106).

6. The quick-opening sealing connection structure for pressure vessels according to claim 3, characterized in that: The end of the rotating shaft (203) is provided with a handle (209).

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