CN215597044U - Connecting assembly and gas cylinder group with same - Google Patents

Abstract

The utility model belongs to the technical field of sealing device, especially, relate to a coupling assembling and have gas bomb group of this coupling assembling, coupling assembling includes coupling hose and two connecting module, two connecting module respectively with coupling hose's both ends are connected, connecting module includes connecting seat, tube socket connection structure and bottle disk seat, the bottle disk seat with the first end of connecting seat is connected to be used for being connected with the gas bomb, the second end and the tube socket connection structure of connecting seat are connected, and with coupling hose connects. Gas cylinder group, including two at least gas bomb and foretell coupling assembling, each gas bomb is connected in different bottle disk seats. The application provides a pair of coupling assembling and have this coupling assembling's gas bomb group has solved the technical problem of coupling assembling dismouting inconvenience among the prior art, later maintenance difficulty, has the convenient and convenient characteristics of just maintaining convenient of using.

Description

Connecting assembly and gas cylinder group with same

Technical Field

The application belongs to the sealing equipment field, and more specifically relates to a coupling assembling and have gas bomb group of this coupling assembling.

Background

The gas cylinder is used as a storage device for storing various gases, and the application scene of the gas cylinder is different according to the types of the gases in the gas cylinder, for example, the gases in the gas cylinder can be fuel gases such as hydrogen, natural gas and liquefied gas, and the gas cylinder can also store protective gases such as argon and carbon dioxide.

The general gas cylinder is of a cylindrical structure, the mouth of the gas cylinder can be connected to gas equipment through a pipeline, and after the gas in the gas cylinder is consumed, the gas cylinder needs to be separated from the pipeline so as to be replaced by a new gas cylinder. When gas consumption of gas appliances is great, frequently change the gas bomb and can influence the use of gas appliances, generally can connect a plurality of gas bombs through coupling assembling, make intercommunication each other between each gas bomb, form gas bomb group, with the change frequency that reduces the gas bomb, but in actual use, relative position between the gas bomb can change according to using place or in service behavior, and the gas bomb of the unable different distances of adaptation of coupling assembling, there is the poor problem of commonality.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of this application is to provide a coupling assembling and have gas bomb group of this coupling assembling to solve the poor technical problem of coupling assembling commonality that exists among the prior art.

In order to achieve the above purpose, the embodiment of the present application adopts the following technical solutions: the connecting assembly comprises a connecting hose and two connecting modules, wherein the two connecting modules are respectively connected with two ends of the connecting hose; the connecting module comprises a connecting seat, a tube seat connecting structure and a bottle valve seat, the bottle valve seat is connected with the first end of the connecting seat and used for being connected with an air storage bottle, and the second end of the connecting seat is connected with the end part of the connecting hose through the tube seat connecting structure.

Optionally, the tube seat connecting structure comprises a locking member, the connecting hose is sleeved at the second end of the connecting seat, and the locking member is sleeved at the connecting hose so that the connecting hose abuts against the outer wall of the second end of the connecting seat.

Optionally, the tube seat connecting structure further comprises a connecting sleeve sleeved on the connecting hose, the second end of the connecting seat comprises a threaded section, the inner wall of the first end of the connecting sleeve is in threaded connection with the threaded section of the connecting seat, and the inner wall of the second end of the connecting sleeve is in threaded connection with the outer wall of the locking part.

Optionally, the second end of connecting seat includes first grafting section and second grafting section, first grafting section the second grafting section with the screw thread section meets in proper order, the radius of first grafting section is less than the second grafting section, so that the first grafting section with the junction of second grafting section forms spacing step face, coupling hose is in the tip of retaining member with form first sealed kink under the crimping of spacing step face.

Optionally, the tube socket connection structure further comprises a sealing ring, the limiting step faces the direction of the second inserting section is sunken to form a sealing groove, an inclined chamfer matched with the sealing groove is arranged at the end of the locking piece, and the sealing ring is sleeved in the sealing groove and is connected with the connecting hose in an abutting mode under the compression joint of the inclined chamfer.

Optionally, tube socket connection structure still includes the lantern ring, the lantern ring is located the inner wall of retaining member with between the coupling hose, the inner wall of retaining member be provided with be used for with the backstop wall of the first end looks butt of the lantern ring, coupling hose is in the second end of the lantern ring with form the sealed kink of second under the crimping of the second end of connecting seat.

Optionally, the connection hose includes a connection inner tube and a connection outer tube, the connection outer tube is sleeved on the connection inner tube, the connection inner tube extends into the inner cavity of the connection base, and the connection outer tube is sleeved on the second end of the connection base.

Optionally, the inner cavity of the connecting base is provided with a butt-joint wall, and the end of the connecting inner pipe abuts against the butt-joint wall; and/or the connecting inner pipe is a corrugated pipe, and the side wall of the inner cavity of the connecting seat is provided with corrugations matched with the outer wall of the corrugated pipe.

Optionally, the first end of the connecting seat is detachably connected or fixedly connected to the bottle valve seat.

The beneficial effect of the coupling assembling that this application embodiment provided lies in: compared with the prior art, the connecting assembly provided by the embodiment of the application has the advantages that the two bottle valve seats are respectively installed on the two connecting seats, and then the two connecting seats are respectively fixed at the two ends of the connecting hose through the pipeline connecting structures, so that the installation of the connecting assembly is completed; when the gas storage bottles need to be connected, the bottle valve seats of the two connecting modules of the connecting component are respectively arranged on the two gas storage bottles, so that the gas storage bottles are communicated; the gas storage bottles are communicated through the connecting hose, so that the connecting hose can be bent when in specific use, the communication among the gas storage bottles at different positions can be met, the universality of the connecting assembly is improved, and the connecting difficulty of the connecting assembly and the gas storage bottles is also reduced; in addition, after the gas storage cylinders are connected, the relative positions of the gas storage cylinders can be moved, the gas storage cylinder group can be conveniently adjusted, and the gas storage cylinder group is suitable for various gas appliances.

The embodiment of the application also provides a gas cylinder group, including two at least gas cylinders and foretell coupling assembling, each the gas cylinder is connected in the difference the bottle valve seat.

The beneficial effect that a gas storage bottle group that this application embodiment provided lies in: compared with the prior art, the gas storage cylinder group that this application embodiment provided, it can be used for saving all kinds of gas, through selecting suitable quantity, the gas bomb of suitable size, and be linked together through foretell coupling assembling, realize gas bomb and coupling assembling's quick assembly disassembly, be favorable to the routine maintenance in later stage, also reduced the degree of difficulty of being connected of coupling assembling and gas bomb, after connecting the gas bomb, can remove the relative position between each gas bomb, also conveniently adjust gas storage cylinder group.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a schematic perspective view of a connection assembly according to an embodiment of the present disclosure;

fig. 2 is a schematic perspective view of one end of the connecting assembly according to the embodiment of the present disclosure;

fig. 3 is an exploded view of one end of a connecting assembly according to an embodiment of the present disclosure;

fig. 4 is an exploded view ii of one end of the connecting assembly according to the embodiment of the present disclosure;

fig. 5 is an exploded view three of one end of the connecting assembly provided in the present application;

fig. 6 is a schematic front view of one end of the connecting assembly according to the embodiment of the present disclosure;

FIG. 7 is a cross-sectional view taken along line A-A of FIG. 6;

FIG. 8 is an enlarged view of a portion of FIG. 7 at B;

fig. 9 is a partial enlarged view at C in fig. 7.

Wherein, in the figures, the respective reference numerals:

10. a connecting hose; 11. connecting an outer pipe; 111. a first section of outer tube; 112. a second section of outer tube; 113. a third section of outer tube; 114. a second seal bend; 115. a first seal bend; 12. connecting the inner pipes;

20. a connecting seat; 21. a first end; 22. a second end; 221. a first plug section; 222. a second plug section; 223. a threaded segment; 23. corrugation; 24. a limiting step surface; 25. a sealing groove; 26. a butt wall;

30. a bottle valve seat; 4. a tube seat connecting structure; 40. a locking member; 401. a stopper wall; 41. a connecting sleeve; 42. a seal ring; 43. a collar.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

The various features and embodiments described in the embodiments may be combined in any suitable manner, for example, different embodiments may be formed by combining different features/embodiments, and in order to avoid unnecessary repetition, various possible combinations of features/embodiments will not be further described in this application.

Referring to fig. 1 and 2 together, the present application provides a connection assembly that may be used to connect gas cylinders to communicate with each other. The connecting assembly comprises a connecting hose 10 and two connecting modules, wherein the two connecting modules are respectively connected with two ends of the connecting hose 10. Specifically, the connection module includes a connection seat 20, a tube seat connection structure 4 and a tube seat 30, wherein two sets of tube seats 30 are respectively used for connecting different gas cylinders, the connection hose 10 has a first end and a second end, one set of connection seat 20 is connected with the first end of the connection hose 10 through one set of tube seat connection structure 4, and the other set of connection seat 20 is connected with the second end of the connection hose 10 through the other set of tube seat connection structure 4.

For convenience of description, the present embodiment will be described with reference to one set of connection modules, and please refer to fig. 2 and fig. 3, the connection seat 20 has a first end 21 and a second end 22, the first end 21 of the connection seat 20 is connected to the bottle valve seat 30, and the second end 22 of the connection seat 20 is connected to the end of the connection hose 10 through the tube seat connection structure 4. So, coupling assembling of this embodiment when being used for connecting the gas bomb, can be earlier through connecting seat 20 with coupling hose 10 and bottle disk seat 30 connection, then with two sets of bottle disk seat 30 sealing connection to different gas bomb again, make intercommunication each other between each gas bomb, thereby realize the high-speed joint assembly of gas bomb, and when gas bomb and coupling assembling are maintained in later stage, can separate gas bomb and coupling assembling through bottle disk seat 30, make things convenient for the maintenance of gas bomb and coupling assembling, the change operation. And because communicate through coupling hose 10 between the gas bomb, so when specifically using, coupling hose 10 can buckle to can satisfy the intercommunication between the different position gas bomb, improve coupling assembling's commonality, and coupling assembling benefits from coupling hose 10's effect after connecting the gas bomb, can adjust relative position and angle between each gas bomb, improve the flexibility of gas bomb. Meanwhile, the tube seat connecting structure 4 arranged between the end part of the connecting hose 10 and the connecting seat 20 can provide reliable connection, realize the sealing connection between the connecting hose 10 and the connecting seat 20, prevent leakage between the connecting hose 10 and the connecting seat 20, and improve the reliability of connection between the connecting assembly and each gas storage bottle. It should be noted that the cylinder valve seat 30 in this embodiment may be a general component of a gas cylinder, that is, the cylinder valve seat 30 may be used to connect different gas cylinders, and the specific structure thereof may be selected according to the type of stored gas and the specific size of the gas cylinder, which is not limited in this embodiment.

In the concrete application, the coupling assembling of this embodiment can be applied to all kinds of gas bomb, including high-pressure gas bomb and low pressure gas bomb, especially is used for the hydrogen storage bottle of storage hydrogen, because the periphery of hydrogen storage bottle generally can twine the fibrous layer (twine around taking or weave the winding), therefore the coupling assembling of this embodiment can adopt following mounting means when being used for connecting in the hydrogen storage bottle: one of them, under the condition that the fibrous layer has not been twined to the hydrogen storage bottle (or the hydrogen storage bottle has only been implemented under the circumstances of circumferential winding, namely the hydrogen storage bottle has not been twined the fibrous layer completely), can connect cylinder valve seat 30, connecting seat 20 and coupling hose 10 earlier, also can assemble the coupling assembling of this embodiment earlier, then be connected to corresponding hydrogen storage bottle respectively with two sets of cylinder valve seats 30 of coupling assembling, at last carry out whole winding formation fibrous layer to hydrogen storage bottle and coupling assembling again (coupling hose 10 can twine the fibrous layer in the lump, also can not twine the fibrous layer). Secondly, under the condition that the fiber layer has been twined to the hydrogen storage bottle (namely hydrogen storage bottle and bottle valve seat 30 have been connected and twine the fiber layer), can be connected connecting seat 20 and coupling hose 10 through tube socket connection structure 4, at this moment, can carry out alone winding fiber layer (or coupling hose 10 also can not twine the fiber layer) to coupling hose 10 according to actual conditions, then be connected coupling hose 10 and bottle valve seat 30 through connecting seat 20. In addition, if the hydrogen storage bottle needs to be solidified, the connection between the bottle valve seat 30 and the gas storage bottle is more fastened, so that the two installation modes can be selected to place the installed hydrogen storage bottle and the installed connecting assembly into a curing furnace together when the hydrogen storage bottle is solidified, or to place the connecting assembly and the hydrogen storage bottle into the curing furnace respectively for curing operation.

As an optional embodiment of the present embodiment, please refer to fig. 4 and fig. 5, the tube seat connecting structure 4 includes a locking member 40, the connecting hose 10 is sleeved on the second end 22 of the connecting seat 20, and the locking member 40 is sleeved on the connecting hose 10, so that the connecting hose 10 abuts on the second end 22 of the connecting seat 20. In this way, the locking member 40 sleeved on the connection hose 10 is used to lock the connection hose 10 to the second end 22 of the connection socket 20, thereby improving the sealing performance between the connection hose 10 and the connection socket 20.

Specifically, as an alternative embodiment of this embodiment, please refer to fig. 4 and 5, the stem connecting structure 4 further includes a connecting sleeve 41, the connecting sleeve 41 has an inner cavity therein, the connecting sleeve 41 is disposed on the outer circumference of the connecting hose 10, the second end 22 of the connecting socket 20 includes a threaded section 223, the inner wall of the first end of the connecting sleeve 41 is in threaded connection with the threaded section 223 of the connecting socket 20, and the inner wall of the second end of the connecting sleeve 41 is in threaded connection with the outer wall of the locking member 40. With the design, on one hand, the locking member 40 can be connected with the connecting seat 20 through the connecting sleeve 41, the locking member 40 is prevented from sliding in the axial direction of the connecting hose 10, and the sealing performance and the reliability of the locking member 40 are improved; on the other hand, after the connecting sleeve 41 is screwed with the outer wall of the locking member 40, the connecting sleeve 41 can apply a certain force to the locking member 40 in the radial direction, so that the locking member 40 is pressed against the connecting hose 10 better, and the sealing effect of the locking member 40 is further improved.

The coupling assembling of this embodiment is when being used for the gas bomb, especially during high-pressure gas storage cylinder such as hydrogen storage cylinder, and the inside operating pressure of gas bomb is great, and coupling hose 10 can receive outside power of breaking loose, and the coupling hose 10 scheduling problem that drops appears easily in current coupling assembling, and in this embodiment, benefit from connecting sleeve 41 and firmly connect retaining member 40 on connecting seat 20, can effectively avoid droing of coupling hose 10, improves coupling assembling's reliability.

In the concrete application, the connecting sleeve 41 in this embodiment is connected to the connecting seat 20 and the locking member 40 in a threaded connection manner, so that the connecting sleeve 41, the locking member 40 and other components can be conveniently disassembled, and the daily maintenance of the connecting assembly in the later period is facilitated.

Specifically, as an optional implementation manner of this embodiment, referring to fig. 4, the second end 22 of the connection socket 20 further includes a first insertion section 221 and a second insertion section 222, the first insertion section 221, the second insertion section 222 and the threaded section 223 are sequentially connected, and a radius of the first insertion section 221 is smaller than that of the second insertion section 222, so that a limiting step surface 24 is formed at a connection position of the first insertion section 221 and the second insertion section 222. In a specific application, after the connection hose 10 is connected with the connection base 20 and the locking member 40, under the pressure connection of the end of the locking member 40 and the limiting step surface 24, the side wall of the connection hose 10 at the corresponding position forms a first sealing bent part 115. In this way, the first sealing bent part 115 of the connection hose 10 can provide a reliable sealing effect for the connection hose 10 by the cooperation of the locking member 40 and the limiting step surface 24, and further improve the sealing effect between the connection hose 10 and the connection base 20.

Specifically, as an optional embodiment of the present embodiment, please refer to fig. 4 and fig. 6 to 8 together, the tube seat connecting structure 4 further includes a sealing ring 42, the limiting step surface 24 is recessed toward the axial direction of the second inserting section 222 to form a sealing groove 25, an end of the locking member 40 is provided with an oblique chamfer engaged with the sealing groove 25, the sealing ring 42 is sleeved in the sealing groove 25, and the sealing ring 42 is abutted to the connecting hose 10 under the pressure of the oblique chamfer. In this way, on the one hand, the first sealing bend 115 of the connection hose 10 can improve the sealing performance by means of the fitted oblique chamfer and the sealing groove 25, and on the other hand, the sealing ring 42 located in the sealing groove can improve the sealing effect between the limit step surface 24 of the connection socket 20 and the first sealing bend 115 of the connection hose 10.

In a specific application, referring to fig. 8, an angle of the oblique chamfer at the end of the locking member 40 may be the same as an oblique angle of the sealing groove, so that the two have a better fitting degree, and the sealing performance at the position of the first sealing bending portion 115 during crimping is further improved. Of course, in another embodiment, the angle of the oblique chamfer and the angle of inclination of the seal groove may be different, and the directions of inclination of both may be matched.

Specifically, as an optional embodiment of the present embodiment, referring to fig. 5, the socket connection structure 4 further includes a collar 43, the collar 43 is located between the inner wall of the locking member 40 and the connection hose 10, referring to fig. 9, the inner wall of the locking member 40 is provided with a stop wall 401, a first end of the collar 43 abuts against the stop wall 401, and the connection hose 10 forms a second sealing bent portion 114 under the pressure contact between a second end of the collar 43 and a second end 22 of the connection seat 20. With such a design, the second sealing bent portion 114 can be formed at a position corresponding to the connection hose 10 by the force between the collar 43 and the connection socket 20, and the sealing effect between the connection hose 10 and the connection socket 20 can be improved.

Specifically, please refer to fig. 9, in this embodiment, the outer diameter of the collar 43 may be larger than the outer diameter of the first insertion section 221, the second end of the collar 43 and the end surface of the first insertion section 221 of the connection seat 20 may jointly act on the side wall of the connection hose 10, so that the second sealing bending portion 114 bending outward is formed at the position corresponding to the connection hose 10, and the end surface of the first insertion section 221 may be provided with an oblique chamfer, which may facilitate the connection hose 10 to be sleeved into the second section 22 of the connection seat 20, and meanwhile, may prevent the end surface edge of the first insertion section 221 from being too sharp to cause abrasion of the connection hose 10, and improve the service life of the connection hose 10.

As an alternative embodiment of the present embodiment, please refer to fig. 7, the connection hose 10 includes a connection inner tube 12 and a connection outer tube 11, the connection outer tube 11 is sleeved on the connection inner tube 12, the connection inner tube 12 extends into the inner cavity of the connection base 20, and the connection outer tube 11 is sleeved on the second end 22 of the connection base 20. In a specific application, the connecting inner tube 12 may be used for gas circulation, the connecting outer tube 11 may be sleeved on the second end 22 of the connecting base 20, and the connecting outer tube 11 may form a first sealing bending portion 115 and a second sealing bending portion 114 on a side wall thereof under the action of the tube seat connecting structure 4 such as the locking member 40 and the connecting sleeve 41, so as to achieve a sealing connection with the connecting base 20. In addition, referring to fig. 5, the first sealing bent portion 115 and the second sealing bent portion 114 may substantially divide the connecting outer tube 11 into a first section of outer tube 111, a second section of outer tube 112 and a third section of outer tube 113 with sequentially increasing radii, wherein the second section of outer tube 112 is connected with the first inserting section 221 of the connecting socket 20, and the third section of outer tube 113 is connected with the second inserting section 222 of the connecting socket 20. When assembling the connection assembly of the present embodiment, the first sealing bent portion 115 and the second sealing bent portion 114 may be formed on the sidewall of the outer connection tube 11 first, so as to facilitate the subsequent connection between the outer connection tube 11 and the connection socket 20, or, of course, the outer connection tube 11 may be directly sleeved on the connection socket 20, and then the first sealing bent portion 115 and the second sealing bent portion 114 may be formed on the outer connection tube 11 through the locking member 40, the connection sleeve 41, and other structures.

Specifically, as one of the optional embodiments of this embodiment, the inner cavity of the connection seat 20 is provided with a butt wall 26, and the end of the connection inner tube 12 abuts against the butt wall 26, so that after the connection inner tube 12 extends into the inner cavity of the connection seat 20, the butt wall 26 can limit the extension length of the connection inner tube 12, prompt the operator to connect the extension length of the inner tube 12, and facilitate the assembly of the connection assembly.

Specifically, as an alternative embodiment of this embodiment, please refer to fig. 7 and 8, the connection inner tube 12 may be a corrugated tube, the side wall of the inner cavity of the connection seat 20 is provided with corrugations 23, and after the corrugated tube extends into the inner cavity of the connection seat 20, the corrugations of the outer wall of the corrugated tube will be matched with the corrugations 23 in the inner cavity of the connection seat 20 to realize the sealing connection. In the concrete application, the bellows can adopt the flexible bellows of metal material, and the outer wall of bellows can twine sealed glue or sealing strip to further improve the sealing performance between bellows and the connecting seat 20 inner chamber.

Alternatively, as an alternative embodiment of this embodiment, the inner connecting tube 12 may also be made of other suitable flexible tubes, for example, the inner connecting tube 12 may be a resin inner tube, the resin inner tube may be made of nylon or other modified resin materials, and the resin inner tube may be connected with the inner cavity of the connecting seat 20 by a sealant or a sealing tape, so as to improve the sealing performance therebetween. The resin inner tube may have a single-layer resin structure or a multilayer structure, and when the connection inner tube 12 has a multilayer structure, the multilayer structure may have a multilayer resin structure (may be a single material or a composite of multiple materials), or may have a multilayer fiber layer structure, and for example, the fiber layer may be formed by using any one of carbon fiber, glass fiber, kevlar fiber, and carbon nanotube fiber, or by weaving a plurality of types of fibers in a mixed manner.

As an optional implementation manner of this embodiment, please refer to fig. 3, the first end 21 of the connecting seat 20 is detachably connected or fixedly connected to the bottle valve seat 30, specifically, the second end 22 of the connecting seat 20 may be connected to the bottle valve seat 30 through a threaded connection, a sealing structure (such as a sealing groove, a sealing protrusion, or a sealing ring), and the like, so as to facilitate the disassembly and assembly and the later maintenance of the connecting seat 20 and the bottle valve seat 30, and of course, the connecting seat 20 and the bottle valve seat 30 may also be connected by a fixing manner such as welding.

The connecting assembly of the present embodiment can be assembled in the following manner: firstly, the second end 22 of the connecting base 20 can be connected with the bottle valve seat 30, then the locking member 40, the lantern ring 43 and the connecting sleeve 41 are sleeved on the connecting hose 10, and the sealing ring 42 is sleeved in the limiting groove 25 of the limiting step surface 24; extending the inner connecting tube 12 of the connecting hose 10 into the inner cavity of the connecting socket 20, and sleeving the outer connecting tube 11 of the connecting hose 10 on the second end 22 of the connecting socket 20, wherein the outer connecting tube 11 covers the first inserting section 221 and the second inserting section 222 of the connecting socket 20; then, the connecting sleeve 41 is screwed with the threaded section 223 of the connecting base 20, then the locking member 40 is screwed into the connecting sleeve 41, the collar 43 and the second end 22 of the connecting base 20 are pressed against the connecting outer tube 11 of the connecting hose 10, the side wall of the connecting outer tube 11 forms a second sealing bent part 114, meanwhile, the end part of the locking member 40 and the limiting step surface 24 of the connecting base 20 are pressed against the connecting outer tube 11, the side wall of the connecting outer tube 11 forms a first sealing bent part 115, and therefore the assembly of the connecting assembly is completed.

The embodiment also provides a gas cylinder group, which comprises at least two gas cylinders and the connecting assembly, wherein each gas cylinder is connected to different cylinder valve seats 30. In concrete application, can realize establishing ties through coupling assembling between two gas bomb, the quantity of gas bomb, the size (the size of each gas bomb can be different) can be selected according to the actual application condition, when being provided with a plurality of gas bomb, can connect gradually through coupling assembling between the adjacent gas bomb, with the gas bomb group that forms the series connection, realize gas bomb and coupling assembling's quick assembly disassembly, be favorable to the routine maintenance in later stage, the connection degree of difficulty of coupling assembling with the gas bomb has also been reduced simultaneously, after connecting the gas bomb, relative position between each gas bomb can be removed, also conveniently adjust gas bomb group.

The gas storage cylinder group can be applied to related facilities or equipment as different components according to different gases stored in the gas storage cylinder group, for example, when the gas in the gas storage cylinder group is fuel such as hydrogen, natural gas and the like, the gas storage cylinder group can be used as vehicle-mounted fuel or vehicle-mounted fuel and the like, in use, a proper number of gas storage cylinders can be selected to be arranged and stacked according to the space of an applied vehicle or other facilities, the gas storage cylinders are communicated through the connecting component to form a larger gas storage pool, the use requirements of the facilities such as the vehicle and the like are met, the structural layout of the facilities such as the vehicle and the like does not need to be changed, and the gas storage cylinder group of the embodiment can be directly applied to the facilities such as the existing vehicle and the like, and has the characteristics of strong adaptability and low cost.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (10)

1. A connecting assembly is characterized by comprising a connecting hose (10) and two connecting modules, wherein the two connecting modules are respectively connected with two ends of the connecting hose (10); the connecting module comprises a connecting seat (20), a tube seat connecting structure (4) and a bottle valve seat (30), the bottle valve seat (30) is connected with a first end (21) of the connecting seat (20) and used for being connected with a gas storage bottle, and a second end (22) of the connecting seat (20) is connected with the end part of the connecting hose (10) through the tube seat connecting structure (4).

2. The connection assembly according to claim 1, wherein the socket connection structure (4) comprises a locking member (40), the connection hose (10) is sleeved on the second end (22) of the connection socket (20), and the locking member (40) is sleeved on the connection hose (10) so that the connection hose (10) abuts on the outer wall of the second end (22) of the connection socket (20).

3. The connecting assembly of claim 2, wherein the socket connecting structure (4) further comprises a connecting sleeve (41) fitted over the connecting hose (10), the second end (22) of the connecting socket (20) comprises a threaded section (223), a first end inner wall of the connecting sleeve (41) is threadedly coupled to the threaded section (223) of the connecting socket (20), and a second end inner wall of the connecting sleeve (41) is threadedly coupled to an outer wall of the locking member (40).

4. The connection assembly according to claim 3, wherein the second end (22) of the connection socket (20) comprises a first plug section (221) and a second plug section (222), the first plug section (221), the second plug section (222) and the threaded section (223) are sequentially connected, the radius of the first plug section (221) is smaller than that of the second plug section (222), so that a limiting step surface (24) is formed at the connection position of the first plug section (221) and the second plug section (222), and the connection hose (10) forms a first sealing bent part (115) under the compression joint of the end part of the locking member (40) and the limiting step surface (24).

5. The connecting assembly according to claim 4, wherein the socket connecting structure (4) further comprises a sealing ring (42), the limiting step surface (24) is recessed towards the second plug section (222) to form a sealing groove (25), an inclined chamfer matching with the sealing groove (25) is provided at an end of the locking member (40), and the sealing ring (42) is sleeved in the sealing groove (25) and abuts against the connecting hose (10) under the pressure of the inclined chamfer.

6. A connecting assembly according to claim 2, characterized in that the socket connecting structure (4) further comprises a collar (43), the collar (43) being located between an inner wall of the retaining member (40) and the connecting hose (10), the inner wall of the retaining member (40) being provided with a stop wall (401) for abutment with a first end of the collar (43), the connecting hose (10) forming a second sealing bend (114) under crimping of a second end of the collar (43) and a second end (22) of the connecting socket (20).

7. The connection assembly according to any one of claims 1 to 6, wherein the connection hose (10) comprises an inner connection tube (12) and an outer connection tube (11), the outer connection tube (11) being sleeved on the inner connection tube (12), the inner connection tube (12) extending into the inner cavity of the connection socket (20), the outer connection tube (11) being sleeved on the second end (22) of the connection socket (20).

8. A connecting assembly according to claim 7, characterised in that the inner cavity of the connecting socket (20) is provided with a docking wall (26), the end of the connecting inner tube (12) abutting against the docking wall (26); and/or the connecting inner pipe (12) is a corrugated pipe, and the side wall of the inner cavity of the connecting seat (20) is provided with corrugations (23) matched with the outer wall of the corrugated pipe.

9. A connecting assembly according to any one of claims 1 to 6, characterised in that the first end (21) of the connecting socket (20) is removably or fixedly connected to the cylinder valve seat (30).

10. A set of gas cylinders, comprising at least two gas cylinders and a connecting assembly according to any one of claims 1 to 9, each gas cylinder being connected to a different cylinder valve seat (30).

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