Leakage-proof connecting assembly

Abstract

The utility model discloses a leakproof connecting assembly which comprises a folding pipe, the two ends of the folding pipe are both fixedly connected with end pipes, the ends, away from the folding pipe, of the end pipes are fixedly connected with flanges, the sides, away from the end pipes, of the flanges are provided with annular grooves, sealing rings are clamped in the annular grooves, and the interiors of the sealing rings are designed to be hollow. And a through hole is formed in one side of the flange. According to the connecting assembly, the folding pipe, the two end pipes, the two flanges, the sealing ring and the extrusion assembly are arranged, the connecting assembly is arranged between the two water purification pipelines needing to be connected of the water purification device and connected with the water purification pipelines through the flanges, and when the flanges of the connecting assembly are attached to flange plates of the water purification pipelines, the extrusion assembly is extruded; and air in the round pipe is extruded into the sealing ring, so that the sealing ring expands, the sealing performance between the end pipe and the purified water pipeline is improved through the sealing ring, and a better leakage-proof effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of water purification devices, in particular to a leak-proof connection assembly. Background Art

[0002] A water purification device, also called a water purifier or water quality purifier, is a water treatment device that deeply filters and purifies water quality according to the usage requirements of water. Generally, the water purifier mentioned usually refers to a small purifier for household use. The technical core is the filter membrane in the filter element device, and the main technologies come from three types: ultrafiltration membrane, RO reverse osmosis membrane, and nanofiltration membrane.

[0003] The various filter elements of the water purification device are connected by pipelines, and the pipelines are butt-jointed by flanges. However, due to the relatively high water pressure inside the pipelines of the water purification device, after long-term use of the water purification device, the flange joints are prone to leakage. Moreover, since the current pipelines of the water purification device are fixedly connected by bolts, the later disassembly and installation are relatively troublesome, affecting maintenance. Therefore, the utility model proposes a leak-proof connection assembly. Content of the Utility Model

[0004] The purpose of the utility model is to solve the disadvantages existing in the prior art, and to propose a leak-proof connection assembly.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme: A leak-proof connection assembly includes a folding pipe. Both ends of the folding pipe are fixedly connected with end pipes. One end of the end pipe away from the folding pipe is fixedly connected with a flange. An annular groove is formed on the side of the flange away from the end pipe. A sealing ring is clamped inside the annular groove. The inside of the sealing ring is designed to be hollow. A perforation is formed on one side of the flange. A pressing assembly connected to the sealing ring is fixed on the surface of the flange near the perforation. Two symmetrical mounting assemblies are fixed on the side of the flange.

[0006] Further, the pressing assembly includes a round pipe vertically fixed on the surface of the flange. The round pipe is located on the side close to the folding pipe. A piston is slidably connected inside the round pipe. One side of the piston close to the perforation is fixedly connected with a movable rod. The end of the movable rod away from the piston passes through the perforation. A hose is fixedly connected to the side wall of the round pipe away from the flange. The other end of the hose passes through the flange and communicates with the sealing ring.

[0007] Further, the hose and the sealing ring adopt a detachable connection method.

[0008] Further, the installation component includes a fixed pipe fixed to the surface of the flange, and the fixed pipe is located on the side close to the folding pipe. An end hole is opened at one end of the fixed pipe away from the end pipe. A pull rod penetrates and is slidably connected inside the end hole. One end of the pull rod outside the fixed pipe is fixedly connected to an L-shaped plate, and a screw rod penetrates and is threadedly connected to one end of the L-shaped plate away from the fixed pipe.

[0009] Further, a knob is fixedly connected to one end of the screw rod away from the flange.

[0010] Further, one end of the pull rod inside the fixed pipe is fixedly connected to a sliding plate. The sliding plate is slidably connected to the fixed pipe, and a spring is fixedly connected between the sliding plate and the inner side wall of the fixed pipe.

[0011] Advantages of the present utility model:

[0012] 1. When the present utility model is in use, for this leak-proof connection component, a folding pipe, two end pipes, two flanges, a sealing ring and an extrusion component are provided. The connection component is placed between two water purification pipes that need to be connected in a water purification device and is connected to the water purification pipes through the flanges. When the flanges of this component are attached to the flange plates of the water purification pipes, the extrusion component is extruded, and the air in the round pipe is extruded into the sealing ring, causing the sealing ring to expand. The sealing ring is used to increase the sealing performance between the end pipe and the water purification pipe, achieving a better leak-proof effect.

[0013] 2. When the present utility model is in use, for this leak-proof connection component, an installation component is provided. Through the installation component, the quick fixed docking of the flange of this component and the flange of the water inlet pipe can be realized. The installation component replaces the original bolt connection, and the disassembly and installation are simpler and more convenient, which is beneficial for later maintenance and repair. Description of the Drawings

[0014] In order to more clearly illustrate the technical solutions of the present utility model, the drawings required for use in the following description of the specific implementation manners will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0015] Figure 1 : Overall three-dimensional view of the present utility model;

[0016] Figure 2 : Front view of the present utility model;

[0017] Figure 3 : Figure 2 Enlarged view of part A in the present utility model;

[0018] Figure 4 : Top view of the present utility model;

[0019] Figure 5 : In the present utility model, Figure 4 the enlarged view at position B.

[0020] The reference numerals are as follows:

[0021] 1. Folding tube; 2. End tube; 3. Flange; 4. Annular groove; 5. Sealing ring; 6. Perforation; 7. Extrusion assembly; 71. Round tube; 72. Piston; 73. Movable rod; 74. Hose; 8. Mounting assembly; 81. Fixed tube; 82. End hole; 83. Pull rod; 84. L-shaped plate; 85. Screw; 86. Knob; 87. Slide plate; 88. Spring. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0023] As Figures 1 - 5 shown, it relates to a leak-proof connection assembly, including a folding tube 1. Both ends of the folding tube 1 are fixedly connected with end tubes 2. One end of the end tube 2 far from the folding tube 1 is fixedly connected with a flange 3. An annular groove 4 is opened on one side of the flange 3 far from the end tube 2. A sealing ring 5 is clamped inside the annular groove 4. The inside of the sealing ring 5 is designed to be hollow. A perforation 6 is opened on one side of the flange 3. An extrusion assembly 7 connected to the sealing ring 5 is fixed on the surface of the flange 3 and near the perforation 6. Two symmetrical mounting assemblies 8 are fixed on the side of the flange 3.

[0024] The extrusion assembly 7 includes a round tube 71 vertically fixed on the surface of the flange 3. The round tube 71 is located on the side close to the folding tube 1. A piston 72 is slidably connected inside the round tube 71. One side of the piston 72 close to the perforation 6 is fixedly connected with a movable rod 73. One end of the movable rod 73 far from the piston 72 passes through the perforation 6. The side wall of the end of the round tube 71 far from the flange 3 is fixedly connected with a hose 74. The other end of the hose 74 passes through the flange 3 and communicates with the sealing ring 5.

[0025] When the flange 3 is butted and fitted with the water purification pipeline, the movable rod 73 will be squeezed into the round tube 71. At this time, the piston 72 squeezes the air in the round tube 71 into the hose 74, and the air then enters the sealing ring 5 along the hose 74, causing the sealing ring 5 to expand, thereby increasing the sealing performance between the flange 3 and the water purification pipeline.

[0026] The hose 74 and the sealing ring 5 adopt a detachable connection method. Therefore, when the sealing ring 5 is damaged, the sealing ring 5 can be disassembled and replaced.

[0027] The installation component 8 includes a fixed pipe 81 fixed to the surface of the flange 3, and the fixed pipe 81 is located on the side close to the folding pipe 1. An end hole 82 is opened at one end of the fixed pipe 81 away from the end pipe 2. A pull rod 83 is penetrated and slidably connected inside the end hole 82. One end of the pull rod 83 outside the fixed pipe 81 is fixedly connected with an L-shaped plate 84, and a screw rod 85 is penetrated and threadedly connected to one end of the L-shaped plate 84 away from the fixed pipe 81.

[0028] By clamping the L-shaped plate 84 on the flange of the water purification pipeline and then screwing the screw rod 85 to abut against the flange of the water purification pipeline, the rapid fixed connection between the end pipe 2 and the water purification pipeline is realized.

[0029] One end of the screw rod 85 away from the flange 3 is fixedly connected with a knob 86.

[0030] In this embodiment, the surface of the knob 86 is provided with anti-slip lines. Therefore, the screw rod 85 can be rotated by using the knob 86, and other tools are not required to rotate the screw rod 85, making the installation and disassembly of the flange 3 simpler and more convenient.

[0031] One end of the pull rod 83 inside the fixed pipe 81 is fixedly connected with a sliding plate 87. The sliding plate 87 is slidably connected with the fixed pipe 81, and a spring 88 is fixedly connected between the sliding plate 87 and the inner side wall of the fixed pipe 81.

[0032] By pulling the sliding plate 87 through the spring 88, the pull rod 83 will move towards the inside of the fixed pipe 81, so that the L-shaped plate 84 can be clamped on the flange of the water purification pipeline.

[0033] Working principle: During installation, first pull the L-shaped plate 84 away from the flange 3, then fit the flange 3 with the flange of the water purification pipeline. Then, after releasing the L-shaped plate 84, under the pulling force of the spring 88, the L-shaped plate 84 is clamped on the flange of the water purification pipeline. Then, the screw rod 85 is screwed through the knob 86 to abut against the surface of the flange of the water purification pipeline to realize the fixed installation of the component. During this process, the movable rod 73 is squeezed back into the round pipe 71, and the piston 72 squeezes the air in the round pipe 71 into the sealing ring 5, causing the sealing ring 5 to expand and increasing the sealing performance between the flange 3 of the component and the flange of the water purification pipeline.

[0034] The above-disclosed preferred embodiments of the present invention are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the present invention to only the specific implementation manners. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principle and practical application of the present invention, so that those skilled in the relevant technical field can understand and utilize the present invention well. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A leak-proof connection assembly, comprising a folding tube (1), characterized in that: Both ends of the folding tube (1) are fixedly connected to end tubes (2), and one end of the end tube (2) away from the folding tube (1) is fixedly connected to a flange (3). An annular groove (4) is provided on the side of the flange (3) away from the end tube (2), and a sealing ring (5) is clamped inside the annular groove (4). The inside of the sealing ring (5) is hollow. A through hole (6) is provided on one side of the flange (3). An extrusion component (7) connected to the sealing ring (5) is fixed on the surface of the flange (3) near the through hole (6), and two symmetrical mounting components (8) are fixed on the side of the flange (3).

2. A leak-proof connection assembly according to claim 1, characterized in that: The extrusion assembly (7) comprises a round tube (71) vertically fixed to the surface of the flange (3), the round tube (71) being located on a side close to the folding tube (1), and a piston (72) being slidably connected inside the round tube (71), a movable rod (73) being fixedly connected to a side of the piston (72) close to the through hole (6), and an end of the movable rod (73) away from the piston (72) passes through the through hole (6), and a side wall of the round tube (71) away from the flange (3) is fixedly connected to a hose (74), and the other end of the hose (74) passes through the flange (3) and is connected to the sealing ring (5).

3. A leak-proof connection assembly according to claim 2, characterized in that: The hose (74) and the sealing ring (5) are connected in a detachable manner.

4. The leak-proof connection assembly according to claim 1, characterized in that: The mounting assembly (8) comprises a fixing tube (81) fixed to the surface of the flange (3), and the fixing tube (81) is located on a side close to the folding tube (1), and an end hole (82) is provided at one end of the fixing tube (81) away from the end tube (2), and a pull rod (83) passes through and is slidably connected to the inside of the end hole (82), and an end of the pull rod (83) located outside the fixing tube (81) is fixedly connected to an L-shaped plate (84), and a screw (85) passes through and is threadedly connected to one end of the L-shaped plate (84) away from the fixing tube (81).

5. A leak-proof connection assembly according to claim 4, characterized in that: The end of the screw rod (85) away from the flange (3) is fixedly connected with a knob (86).

6. The leak-proof connection assembly according to claim 4, characterized in that: One end of the pull rod (83) located in the fixed tube (81) is fixedly connected to a slide plate (87), the slide plate (87) is slidably connected to the fixed tube (81), and a spring (88) is fixedly connected between the slide plate (87) and the inner wall of the fixed tube (81).

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