Anti-static chemical gas conveying hose connector

Abstract

The utility model relates to the field of hose connection discloses a kind of anti-static chemical gas conveying hose connector, including connecting pipe one and connecting pipe two, connecting pipe one is connected by sealing assembly and connecting pipe two, the surface of connecting pipe two is threadedly connected with threaded sleeve, the inner wall of the threaded sleeve is provided with bevel, the right side of connecting pipe two is fixedly connected with sealing ring, the sealing assembly includes round tube, the round tube is fixedly connected in the left side of connecting pipe one, the sealing ring is set in round tube outer wall, the outside of round tube is provided with elastic sheet, the right side of elastic sheet is fixedly connected with the left side of connecting pipe one. In the utility model, by threaded sleeve rotation drive bevel and protruding block cooperation, rotational torque is converted into axial pressure, prompting elastic sheet deformation and compressing sealing ring. The design does not need special tool, single person can complete installation, and without wrench and other tools can be quickly disassembled, reduce maintenance cost.

Description

Technical Field

[0001] This utility model relates to the field of hose connections, and in particular to an antistatic chemical gas conveying hose connector. Background Technology

[0002] Flexible hoses are widely used for pipe connections due to their flexibility, typically for gas pipeline connections, such as those for liquefied gas tanks. Antistatic chemical gas transmission hose connectors are components used in the gas industry for transporting flammable and explosive gases such as methane, propane, and hydrogen, and must meet the requirements for electrostatic safety and sealing during gas transmission.

[0003] Existing commonly used pipe fittings are mostly complex in structure and require special tools for disassembly and assembly. In particular, the connection pipes of liquefied gas tanks have high sealing requirements. The clamp-type connection requires the use of external tools to loosen the bolts for disassembly, which is inconvenient for a single person to disassemble and maintain. Moreover, after long-term use, the bolts are prone to loosening, which can lead to sealing failure. Leakage is especially likely to occur under dynamic operating conditions (such as pipeline vibration). Therefore, an anti-static chemical gas transmission hose connector is proposed to solve the above problems. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides an anti-static chemical gas conveying hose connector, which aims to improve the problem in the prior art that "disassembly via clamp connection requires the use of external tools to tighten the bolts, making disassembly and maintenance inconvenient for a single person".

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an antistatic chemical gas conveying hose connector, comprising a connecting pipe one and a connecting pipe two, the connecting pipe one being connected to the connecting pipe two via a sealing assembly, the surface of the connecting pipe two being threadedly connected to a threaded sleeve, the inner wall of the threaded sleeve being provided with an inclined surface, a sealing ring being fixedly connected to the right side of the connecting pipe two, the sealing assembly comprising a circular tube, the circular tube being fixedly connected to the left side of the connecting pipe one, the sealing ring being sleeved on the outer wall of the circular tube, an elastic sheet being provided on the outside of the circular tube, the right side of the elastic sheet being fixedly connected to the left side of the connecting pipe one, a protrusion being fixedly connected to the surface of the elastic sheet away from the circular tube, and a gap being provided between the elastic sheet and the circular tube.

[0006] As a further description of the above technical solution:

[0007] The first connecting pipe is located on the right side of the second connecting pipe, and the central axis of the first connecting pipe coincides with the central axis of the second connecting pipe.

[0008] As a further description of the above technical solution:

[0009] The surface of the second connecting pipe is provided with a threaded groove, and the threaded sleeve is threadedly connected to the surface of the threaded groove.

[0010] As a further description of the above technical solution:

[0011] The outer wall of the circular tube is fitted with the inner wall of the sealing ring, and the outer wall of the sealing ring is fitted with the surface of the elastic sheet away from the protrusion.

[0012] As a further description of the above technical solution:

[0013] The outer diameter of the circular tube is equal to the inner diameter of the sealing ring, and the sealing ring is located inside the gap.

[0014] As a further description of the above technical solution:

[0015] The elastic sheet is elastic and naturally extends into a straight line when not subjected to external force.

[0016] As a further description of the above technical solution:

[0017] The cross-sectional shape of the protrusion is set to semi-circular, and the side of the protrusion away from the elastic sheet is provided with an arc surface.

[0018] As a further description of the above technical solution:

[0019] The arc surface and the inclined surface of the protrusion cooperate with each other.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, the rotation of the threaded sleeve drives the inclined surface to engage with the protrusion, converting the rotational torque into axial pressure, which causes the elastic sheet to deform and press the sealing ring. This design requires no special tools, can be installed by a single person, and the sealing ring is always in a controlled compression state, adapting to minor deformations of the connector. It can also be quickly disassembled without tools such as wrenches, reducing maintenance costs.

[0022] 2. In this utility model, the gap between the elastic sheet and the round tube provides space for elastic deformation of the sealing ring, which avoids fatigue failure of the sealing material due to excessive compression, and at the same time ensures that the sealing ring can maintain good resilience after multiple disassembly and assembly. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the overall three-dimensional exploded structure of this utility model;

[0025] Figure 3This is a three-dimensional exploded structural diagram of the entire structure from another perspective of this utility model;

[0026] Figure 4 This is a three-dimensional structural diagram of the connecting pipe and the sealing assembly in this utility model.

[0027] Legend:

[0028] 1. Connecting pipe one; 2. Connecting pipe two; 31. Threaded sleeve; 32. Bevel; 4. Threaded groove; 5. Sealing ring; 6. Sealing assembly; 61. Round pipe; 62. Elastic sheet; 63. Protrusion; 64. Gap. Detailed Implementation

[0029] 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.

[0030] Reference Figure 1 and Figure 2 This utility model provides an embodiment of an anti-static chemical gas conveying hose connector, comprising a connecting pipe 1 and a connecting pipe 2. Both connecting pipe 1 and connecting pipe 2 are made of conductive material, 316L stainless steel. The static electricity generated during gas conveying is conducted to the grounding device through the metal body, and the static voltage is controlled below 50V, which is lower than the ignition energy of flammable and explosive gases, thus avoiding safety accidents caused by static electricity. Connecting pipe 1 is located on the right side of connecting pipe 2, and the central axis of connecting pipe 1 and the central axis of connecting pipe 2 coincide, ensuring that the fluid transmission path is straight after the two pipes are connected, reducing turbulence and energy loss. Connecting pipe 1 is connected to connecting pipe 2 through a sealing component 6, and dynamic sealing is achieved through a sealing ring 5 and an elastic sheet 62 to adapt to minor deformations during connection.

[0031] Reference Figure 1 - Figure 3The surface of the connecting pipe 2 is threaded with a threaded sleeve 31. The surface of the connecting pipe 2 is provided with a threaded groove 4. The threaded sleeve 31 is threaded onto the surface of the threaded groove 4. Mechanical fixation is achieved by screwing the threaded sleeve 31 into the threaded groove 4, which enhances the connection stability. The inner wall of the threaded sleeve 31 is provided with a bevel 32. A sealing ring 5 is fixedly connected to the right side of the connecting pipe 2. The sealing ring 5 is sleeved on the outer wall of the round pipe 61 and fits against the elastic sheet 62. The sealing is achieved by the compression of the elastic sheet 62 to prevent gas leakage. The sealing assembly 6 includes a round pipe 61, which is fixedly connected to the left side of the connecting pipe 1. The sealing ring 5 is sleeved on the outer wall of the round pipe 61. The outer wall of the round pipe 61 and the inner wall of the sealing ring 5 fit against each other. The outer diameter of the round pipe 61 and the inner diameter of the sealing ring 5 are equal.

[0032] Reference Figure 2 - Figure 4 An elastic sheet 62 is provided on the outside of the round tube 61. The elastic sheet 62 is elastic and naturally extends into a straight line when not subjected to external force. The right side of the elastic sheet 62 is fixedly connected to the left side of the connecting tube 1. A protrusion 63 is fixedly connected to the surface of the elastic sheet 62 away from the round tube 61. The cross-sectional shape of the protrusion 63 is set as a semi-circle, which converts the rotational torque of the threaded sleeve 31 into axial pressure, squeezing the protrusion 63 and thus pushing the elastic sheet 62 to deform.

[0033] Reference Figure 2 - Figure 4 The protrusion 63 has an arc surface on the side away from the elastic sheet 62. The arc surface of the protrusion 63 cooperates with the inclined surface 32 and is converted into axial force through rotational motion, which drives the elastic sheet 62 to deform and press the sealing ring 5. The outer wall of the sealing ring 5 is in contact with the surface of the elastic sheet 62 away from the protrusion 63. After the elastic sheet 62 is subjected to the action of the inclined surface 32, it bends and deforms, driving the protrusion 63 to move and compress the sealing ring 5. A gap 64 is provided between the elastic sheet 62 and the round tube 61. The gap 64 is reserved for the deformation space of the elastic sheet 62 to ensure that the sealing ring 5 can still maintain its sealing performance after being compressed. The sealing ring 5 is located inside the gap 64.

[0034] Working principle: When in use, the user first aligns the connecting pipe 1 and the connecting pipe 2 so that their central axes coincide. Then, the threaded sleeve 31 is screwed into the threaded groove 4 of the connecting pipe 2. During the rotation, the inclined surface 32 of the inner wall of the threaded sleeve 31 gradually contacts the arc surface of the protrusion 63. As the threaded sleeve 31 is further tightened, the inclined surface 32 pushes the protrusion 63 towards the elastic plate 62, forcing the elastic plate 62 to bend and deform from its naturally extended straight shape.

[0035] The deformation of the elastic sheet 62 causes the sealing ring 5 on its right side to be squeezed towards the circular tube 61, so that the outer wall of the sealing ring 5 is tightly attached to the surface of the elastic sheet 62. At the same time, the sealing ring 5 is compressed in the gap 64, forming a dynamic seal. At this time, the connecting pipe 1 and the connecting pipe 2 are airtightly connected through the sealing component 6, and the gas cannot leak under the obstruction of the sealing ring 5.

[0036] When disassembly is required, the threaded sleeve 31 is rotated in the opposite direction, the inclined surface 32 separates from the protrusion 63, the elastic plate 62 returns to its original shape, the sealing ring 5 is released from the gap 64, and the connector can be separated, achieving quick disassembly. At the same time, through the synergistic effect of the elastic deformation of the elastic plate 62 and the compression deformation of the sealing ring 5, the connector can maintain good sealing performance even after frequent installation and disassembly.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A connector for an antistatic chemical gas delivery hose, comprising a first connecting pipe (1) and a second connecting pipe (2), characterized in that: Connecting pipe one (1) is connected to connecting pipe two (2) through sealing assembly (6). The surface of connecting pipe two (2) is threaded with a threaded sleeve (31). The inner wall of the threaded sleeve (31) is provided with a bevel (32). A sealing ring (5) is fixedly connected to the right side of connecting pipe two (2). The sealing assembly (6) includes a round tube (61). The round tube (61) is fixedly connected to the left side of connecting pipe one (1). The sealing ring (5) is sleeved on the outer wall of the round tube (61). An elastic sheet (62) is provided on the outside of the round tube (61). The right side of the elastic sheet (62) is fixedly connected to the left side of connecting pipe one (1). A protrusion (63) is fixedly connected to the side of the elastic sheet (62) away from the round tube (61). A gap (64) is provided between the elastic sheet (62) and the round tube (61).

2. The anti-static chemical gas delivery hose connector of claim 1, wherein: The first connecting pipe (1) is located on the right side of the second connecting pipe (2), and the central axis of the first connecting pipe (1) coincides with the central axis of the second connecting pipe (2).

3. The anti-static chemical gas delivery hose connector of claim 1, wherein: The surface of the connecting pipe (2) is provided with a threaded groove (4), and the threaded sleeve (31) is threadedly connected to the surface of the threaded groove (4).

4. The anti-static chemical gas delivery hose connector of claim 1, wherein: The outer wall of the round tube (61) and the inner wall of the sealing ring (5) are in contact, and the outer wall of the sealing ring (5) is in contact with the side surface of the elastic sheet (62) away from the protrusion (63).

5. The anti-static chemical gas delivery hose connector of claim 1, wherein: The outer diameter of the round tube (61) is equal to the inner diameter of the sealing ring (5), and the sealing ring (5) is located inside the gap (64).

6. The anti-static chemical gas delivery hose connector of claim 1, wherein: The elastic sheet (62) is elastic and is naturally stretched into a straight line when not subjected to external force.

7. The anti-static chemical gas delivery hose connector of claim 1, wherein: The cross-sectional shape of the protrusion (63) is set as semi-circular, and the side of the protrusion (63) away from the elastic sheet (62) is provided with an arc surface.

8. The anti-static chemical gas delivery hose connector of claim 7, wherein: The arc surface of the protrusion (63) and the inclined surface (32) cooperate with each other.

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