Water pressure flexible joint device for bottleneck of aluminum liner carbon fiber winding gas cylinder

Abstract

The utility model discloses a water pressure flexible joint device for a bottleneck of an aluminum liner carbon fiber winding gas cylinder, which relates to the field and comprises a connecting rod, convex blocks are movably mounted on the outer side of the connecting rod in a symmetrical structure, a detection block is in threaded connection with the inner side of the top of a second connecting block, a cavity is formed in the detection block, and filler is filled in the cavity. Multiple groups of holes are formed in the inner side of the detection block, an arc-shaped guide head is arranged on the threaded connection part of the outer side of the bottom of the connecting rod, a sealing net is fixedly connected in the holes, and a first connecting block is in threaded connection above the detection block. According to the utility model, the flexible connecting piece can simulate the elastic force and torque of a human hand by utilizing the characteristic of flexibility of the flexible connecting piece, effectively buffers the deviation of the connecting rod and the bottleneck aluminum thread in the installation process, improves the connection stability and improves the detection efficiency, and the clamping sleeve and the connecting rod are made of stainless steel materials, so that the clamping sleeve and the connecting rod are made of stainless steel materials with high strength, high hardness and good corrosion resistance. The structure stability and the sealing performance of the connector device in the water pressure testing process are guaranteed, and the service life is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field, specifically is a kind of aluminium inner liner carbon fiber winding gas cylinder mouth water pressure flexible joint device. BACKGROUND

[0002] In modern industry and life, aluminium inner liner carbon fiber winding gas cylinder is widely used in many fields with its light weight, high strength, corrosion resistance and other significant advantages, for example, in aerospace field, it provides necessary gas storage and supply for aircraft;In fire fighting industry, it is used for air respirator carried by firemen;In medical field, it is used as gas storage container for oxygen etc., and when these aluminium inner liner carbon fiber winding gas cylinders are operated, such as water pressure test, gas filling, water pressure joint is needed to connect gas cylinder with corresponding equipment.

[0003] Water pressure test is the key link to ensure the quality and safety of gas cylinder, it can detect whether gas cylinder exists leakage, deformation and other problems when bearing certain pressure, and gas filling is an important step to make gas cylinder have actual use function, therefore, the performance and quality of water pressure joint directly affect the accuracy, safety of these operations and service life of gas cylinder.

[0004] At present, common aluminium inner liner carbon fiber winding gas cylinder mouth water pressure joint device on market is mainly composed of stainless steel joint and chuck, when carrying out automatic installation and dismounting operation, stainless steel joint is firmly clamped by chuck, then stainless steel joint is screwed into aluminium gas cylinder mouth thread by mechanical device, to realize the connection between gas cylinder and external equipment.

[0005] In the process of automatic installation and dismounting, due to the limitation of equipment precision, deviation of gas cylinder placement position and vibration in operation process and other factors, stainless steel joint clamped by chuck is difficult to completely guarantee centering with aluminium bottle mouth thread, in this case, if stainless steel joint is forced to be screwed into aluminium bottle mouth thread, large lateral force will be generated, which will cause serious scratching, wear and even deformation of aluminium thread, aluminium material is relatively soft, once its thread is damaged, it will greatly affect the connection tightness and sealing between gas cylinder and joint. INVENTION CONTENTS

[0006] In order to overcome the above-mentioned defects, the utility model provides a kind of aluminium inner liner carbon fiber winding gas cylinder mouth water pressure flexible joint device, solve the stainless steel joint of aluminium inner liner carbon fiber winding gas cylinder in automatic installation and disassembly, because equipment precision is limited, gas cylinder placement position has deviation and vibration exists in operation and other factors, chuck clamped stainless steel joint is difficult to be completely centered with aluminium bottle mouth thread, if forcibly screw in, it can produce larger lateral force, in view of aluminium material is relatively soft, this can lead to aluminium thread serious scratch, wear and even deformation, further greatly influence the tightness and sealability of gas cylinder and joint connection Problem.

[0007] To achieve the above object, the utility model provides the following technical scheme: a kind of aluminium inner liner carbon fiber winding gas cylinder mouth water pressure flexible joint device, including connecting rod, the protruding block of the connecting rod outside is movably installed with symmetrical structure, the flexible connecting piece of the connecting rod top outside buckle is installed, the sleeve of the flexible connecting piece outside buckle is installed, the protruding block movably penetrates the flexible connecting piece with the sleeve, the second connecting block is connected in the connecting rod top, the second connecting block top inside is connected with detection block by screwing, the cavity is opened in the detection block, the cavity is filled with filler, a plurality of groups of openings are opened in the detection block inside, the arc guide head is arranged in the threaded connection part of the connecting rod bottom outside, the sealing net is fixedly connected in the opening, the first connecting block is connected by screwing in the detection block top.

[0008] As a further scheme of the utility model: the detection block is made of transparent plastic material, and the filler is cobalt salt.

[0009] As a further scheme of the utility model: the sleeve and the connecting rod are made of stainless steel material, and the flexible connecting piece is made of plastic printing material.

[0010] As a further scheme of the utility model: the sleeve and the flexible connecting piece outside are respectively provided with first slot and second slot matched with the protruding block.

[0011] Compared with the prior art, the utility model has the beneficial effects that:

[0012] 1, through the flexible connecting piece using the flexible characteristics of itself, can simulate the elasticity and torque of human hand, effectively buffer the deviation of connecting rod and bottle mouth aluminium thread in installation process, improve the stability of connection, and, since the device adopts split design, when connecting rod wears, only need to replace connecting rod, it is beneficial to the rational use of resources, in addition, the detection block of transparent plastic material is convenient for operator to directly observe the color change of filler, can quickly judge leakage condition without disassembling joint device, improve detection efficiency, the stainless steel material of sleeve and connecting rod, by virtue of its high strength, high hardness and good corrosion resistance, guarantee the structure stability and sealing performance of joint device in water pressure test process, prolong service life.

[0013] 2. The connecting rod, through the arc-shaped guide head at the bottom, can smoothly guide the connecting rod into the pilot part of the aluminum thread when connecting to the gas cylinder mouth. For gas cylinders that are not completely centered and aligned, it can also achieve slight correction, ensuring the accurate connection between the connecting rod thread and the aluminum thread of the cylinder mouth. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0016] Figure 3 This is a schematic diagram showing the partial structural disassembly of this utility model;

[0017] Figure 4 This is a schematic diagram showing the disassembly effect of the main structure of this utility model.

[0018] In the figure: 1. Connecting rod; 2. Clip; 3. First connecting block; 4. Detection block; 5. Protrusion; 6. First slot; 7. Cavity; 8. Flexible connector; 9. Opening; 10. Second slot; 11. Arc-shaped guide head; 12. Second connecting block. Detailed Implementation

[0019] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0020] like Figures 1-4 As shown, this utility model provides a technical solution for a flexible hydraulic joint device for the neck of an aluminum-lined carbon fiber wound gas cylinder:

[0021] The device includes a connecting rod 1. A protrusion 5 is movably installed on the outer side of the connecting rod 1 in a symmetrical structure. A flexible connector 8 is snapped onto the outer side of the top of the connecting rod 1. A sleeve 2 is snapped onto the outer side of the flexible connector 8. The protrusion 5 movably passes through the flexible connector 8 and the sleeve 2. A second connecting block 12 is threadedly connected to the top of the connecting rod 1. A detection block 4 is threadedly connected to the inner side of the top of the second connecting block 12. A cavity 7 is opened inside the detection block 4 and filled with filler. Multiple sets of openings 9 are opened inside the detection block 4. An arc-shaped guide head 11 is set on the outer side of the bottom of the connecting rod 1 at the threaded connection part. A sealing mesh is fixedly connected inside the opening 9. A first connecting block 3 is threadedly connected above the detection block 4.

[0022] Specific, the connecting rod 1 through the bottom of the arc guide head 11, the connecting rod 1 can be smoothly guided into the aluminum thread pilot portion, for the incomplete centering cylinder, can realize the trace correction, ensure the accurate connection of the subsequent connecting rod 1 thread and bottle mouth aluminum thread, the guide head can guide the connecting rod 1 to be accurately screwed in during installation, the protrusion 5 on the outside of the connecting rod 1 can provide a force point during installation, facilitate operation, after installation, the flexible connecting piece 8 is buckled on the top outside of the connecting rod 1, and the clamp sleeve 2 is buckled on the outside of the flexible connecting piece 8, the protrusion 5 penetrates the two, plays a fixing and limiting role, at the same time, the first connecting block 3 is threadedly connected above the detection block 4, and the second connecting block 12 is threadedly connected at the top of the connecting rod 1, used for fixing the detection block 4, when the water pressure test is carried out, if leakage occurs at the joint, water will enter the cavity 7 through the opening 9 in the inside of the detection block 4, since the opening 9 is fixedly connected with a sealing net, the leakage of the filler can be prevented, and the water enters the cavity 7 and contacts the filler, so that the filler changes color when water is encountered, thereby indicating that leakage occurs, the flexible connecting piece 8 and the clamp sleeve 2 cooperate, and the flexible characteristics of the flexible connecting piece are utilized, the elastic force and torque of the human hand can be simulated, the deviation of the connecting rod 1 and the aluminum thread of the bottle mouth during installation 8 can be effectively buffered, and since the split design is adopted, the connecting rod 1 can be replaced after being worn, which is beneficial to the rational utilization of resources.

[0023] The detection block 4 is made of transparent plastic material, and the filler is cobalt salt; the clamp sleeve 2 and the connecting rod 1 are made of stainless steel material; and the flexible connecting piece 8 is made of plastic printing material.

[0024] Specifically, the detection block 4 made of transparent plastic material can enable an operator to directly observe the color change of the internal filler, so that whether leakage occurs can be rapidly judged without disassembling the joint device, and the detection efficiency is greatly improved, and the accuracy of the water pressure test is prevented from being affected due to the fact that leakage is not found in time; cobalt salt, as a commonly used color-changing material, has obvious and sensitive color-changing characteristics; anhydrous cobalt salt is usually blue, and will quickly change to pink after being contacted with water; the color change can enable an operator to perceive the leakage in the first time, and timely measures can be taken; stainless steel has high strength and hardness, can withstand the pressure and impact force in the water pressure test process, is not easy to deform or be damaged, and prolongs the service life of the joint device; in the water pressure test environment, water and other possible chemical substances can corrode the joint device; the good corrosion resistance of stainless steel ensures that the clamp sleeve 2 and the connecting rod 1 will not be corroded in the long-term use process, and the sealing performance and structural stability of the joint device are ensured.

[0025] The working principle of the utility model is:

[0026] Firstly, the connecting rod 1 passes through the arc-shaped guide head 11 at the bottom, which can smoothly guide the connecting rod 1 to rotate into the leading part of the aluminum thread when connected with the cylinder mouth, and can also realize slight deviation correction for the cylinder not completely centered, ensuring the accurate connection of the subsequent connecting rod 1 thread with the cylinder mouth aluminum thread. The symmetrical protrusions 5 on the outside of the connecting rod 1 provide a force point for installation, facilitating operation. After installation is completed, the flexible connecting piece 8 is buckled on the top outside of the connecting rod 1, and the clamp sleeve 2 is buckled on the outside of the flexible connecting piece 8, and the protrusions 5 penetrate both of them, playing a fixing and limiting role. At the same time, the first connecting block 3 is threadedly connected above the detection block 4, and the second connecting block 12 is threadedly connected at the top of the connecting rod 1, completing the fixation of the detection block 4.

[0027] Secondly, when water is injected into the cylinder for water pressure test, if leakage occurs at the joint, water will enter the cavity 7 through the opening 9 on the inside of the detection block 4. Since the opening 9 is fixedly connected with a sealing net, it can prevent the filler from leaking out. After the water enters, it contacts with the cobalt salt filler filled in the cavity 7, and the cobalt salt rapidly changes from blue to pink when it meets water, thereby indicating the occurrence of leakage.

[0028] Finally, the flexible connecting piece 8 can simulate the elasticity and torque of human hand by utilizing its own flexible characteristics, effectively buffering the deviation of the connecting rod 1 and the cylinder mouth aluminum thread during installation, and improving the stability of the connection. In addition, since the device adopts a split design, when the connecting rod 1 is worn out, only the connecting rod 1 needs to be replaced, which is conducive to the rational use of resources. Moreover, the transparent plastic material of the detection block 4 facilitates the direct observation of the color change of the filler by the operator, and the leakage condition can be quickly judged without disassembling the joint device, improving the detection efficiency. The stainless steel material used for the clamp sleeve 2 and the connecting rod 1 has high strength, high hardness and good corrosion resistance, ensuring the structural stability and sealing performance of the joint device during water pressure test, and prolonging the service life.

[0029] The above describes the preferred embodiments of the present patent in detail, but the present patent is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the purpose of the present patent.

Claims

1. An aluminum liner carbon fiber winding gas cylinder mouth water pressure flexible joint device, comprising a connecting rod (1), characterized in that: The outer side of the connecting rod (1) is movably provided with a protrusion (5) in a symmetrical structure, the outer side of the top of the connecting rod (1) is buckle-mounted with a flexible connecting piece (8), the outer side of the flexible connecting piece (8) is buckle-mounted with a clamping sleeve (2), the protrusion (5) movably penetrates through the flexible connecting piece (8) and the clamping sleeve (2), the top of the connecting rod (1) is threadedly connected with a second connecting block (12), the inner side of the top of the second connecting block (12) is threadedly connected with a detection block (4), the detection block (4) is internally provided with a cavity (7), the cavity (7) is filled with a filler, a plurality of groups of openings (9) are formed in the inner side of the detection block (4), the outer side of the bottom of the connecting rod (1) is provided with an arc-shaped guide head (11) at a threaded connection portion, a sealing net is fixedly connected in the opening (9), and the detection block (4) is threadedly connected with a first connecting block (3) above.

2. The water pressure flexible joint device of the bottle mouth of the aluminum liner carbon fiber winding gas cylinder according to claim 1, characterized in that: The detection block (4) is made of transparent plastic material, and the filler is cobalt salt.

3. The water pressure flexible joint device of the bottle mouth of the aluminum liner carbon fiber winding gas cylinder according to claim 2, characterized in that: The clamping sleeve (2) and the connecting rod (1) are both made of stainless steel material, and the flexible connecting piece (8) is made of plastic printing material.

4. The water pressure flexible joint device of the bottle mouth of the aluminum liner carbon fiber winding gas cylinder according to claim 3, characterized in that: The outer sides of the clamping sleeve (2) and the flexible connecting piece (8) are respectively provided with a first slot (6) and a second slot (10) matched with the protrusion (5).

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