Gas storage cylinder and vehicle

Abstract

The utility model provides a gas storage bottle and a vehicle, the gas storage bottle comprises a bottle body, the bottle body comprises an inner container, a valve seat and an adapter; an inserting part is arranged at the end, provided with the ventilation opening, of the inner container, the valve seat is provided with a matching part matched with the inserting part, the matching part and the inserting part form inserting matching, the adapter is connected with the valve seat, at least part of the inserting part is clamped between the adapter and the valve seat, and the inner container, the valve seat and the adapter are connected together. According to the gas cylinder disclosed by the utility model, the plug-in mounting part on the inner container is matched with the matching part on the valve seat in a plug-in mounting manner, so that the connection relationship between the inner container and the valve seat is simplified, the inner container and the valve seat can be accurately assembled together, the gas cylinder is connected with the valve seat through the adapter, and at least part of the plug-in mounting part is clamped between the inner container and the valve seat; and the stability of connection among the inner container, the valve seat and the adapter is enhanced, so that the reliability of connection in the use process is ensured, and the use performance of the gas storage bottle is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to gas storage product technical field, especially a kind of gas cylinder;Meanwhile, the utility model also relates to a kind of vehicle with the gas cylinder. BACKGROUND

[0002] Gas cylinder is used to store gas, for example, hydrogen storage cylinder for storing hydrogen, which is divided into four types: all-metal gas cylinder (type I), metal liner fiber hoop winding gas cylinder (type II), metal liner fiber full winding gas cylinder (type III), non-metal liner fiber full winding gas cylinder (type IV). Among them, type IV gas cylinder generally uses plastic and other non-metal liner plus carbon fiber winding manufacturing method, so that the gas cylinder has the advantages of lighter weight, lower cost, higher quality hydrogen storage density, and wider application.

[0003] Hydrogen is in a high-pressure state in the bottle, although the plastic liner has certain strength, but at the bottle opening position, it needs to be frequently connected with valve, pipeline and other components, and needs to bear various external forces during installation and disassembly, so a metal bottle opening is generally arranged on the inner and outer sides of the air vent at the inner end. However, the structure of the connection between the adapter and the valve seat and the liner is more in the prior art, and the connection mode is more complex, which is not conducive to improving production efficiency and reducing the production cost of the gas cylinder. UTILITY MODEL CONTENTS

[0004] Therefore, the utility model aims to provide a gas cylinder to simplify the structure of the gas cylinder and improve the assembly efficiency of the gas cylinder.

[0005] To achieve the above-mentioned purpose, the technical scheme of the utility model is as follows:

[0006] A gas cylinder includes a bottle body, the bottle body includes a liner, a valve seat and an adapter;

[0007] The liner has an insertion part at one end of the air vent, the valve seat has a matching part adapted to the insertion part, the matching part and the insertion part form an insertion fit, the adapter is connected with the valve seat and clamps at least part of the insertion part therebetween, so as to connect the liner, the valve seat and the adapter together.

[0008] Further, the insertion part includes a cylinder body arranged along the edge of the air vent, and an insertion slot arranged around the cylinder body, and the cylinder body extends to the outside of the liner;The matching part includes a protrusion adapted to the insertion slot, and a groove adapted to the cylinder body.

[0009] Further, the valve seat has a communication hole in communication with the air vent, the adapter has a through hole in communication with the communication hole; one end of the adapter is inserted into the communication hole and connected with the valve seat by taper thread screwing, and at least part of the cylinder is clamped between the protrusion and the other end of the adapter.

[0010] Further, a sealing structure is arranged between the cylinder and the adapter, and the sealing structure is used for sealing the gap between the cylinder and the adapter.

[0011] Further, the inner peripheral wall of the cylinder has a thinning portion arranged along the circumferential direction of the cylinder, and the sealing structure is arranged between the thinning portion and the adapter.

[0012] Further, the valve seat has a communication hole in communication with the air vent, the adapter is screwed in the communication hole, has an extending portion extending into the communication hole, and has a stop ring abutting against the outer end surface of the valve seat; and the cylinder is clamped between the protrusion and the extending portion.

[0013] Further, a sealing structure is arranged at the connection part of the extending portion, the protrusion and the cylinder, and the sealing structure is used for sealing the gap at the connection part.

[0014] The gas storage cylinder has the following advantages compared with the prior art:

[0015] The gas storage cylinder has the following advantages compared with the prior art:

[0016] In addition, by arranging the sealing structure between the cylinder and the adapter, the sealing performance of the connection between the two is improved. By arranging the sealing structure between the thinned portion and the adapter, the arrangement is facilitated, and the thin wall thickness is conducive to reducing the leakage failure caused by the deformation of the inner container. The adapter is screwed into the communication hole, and the upper extending portion of the adapter and the stop ring are arranged, and when the stop ring is tightly abutted with the outer end surface of the valve seat, it indicates that the adapter is installed in place in the axial direction, and the cylinder is clamped between the protrusion and the extending portion, which is conducive to improving the connection reliability between the inner container, the valve seat and the adapter. By arranging the sealing structure for sealing between the extending portion, the protrusion and the cylinder, the sealing performance of the connection between the three is ensured.

[0017] In addition, another purpose of the utility model is to provide a vehicle, which is provided with the gas cylinder as described above.

[0018] The vehicle provided with the gas cylinder as described above has improved use performance. BRIEF DESCRIPTION OF DRAWINGS

[0019] The drawings constituting a part of the utility model are used to provide further understanding of the utility model, and the illustrative embodiments of the utility model and the description thereof are used to explain the utility model, and do not constitute improper limitation on the utility model. In the drawings:

[0020] Figure 1 It is a first structure schematic view of the gas cylinder of the utility model embodiment one;

[0021] Figure 2 It is a second structure schematic view of the gas cylinder of the utility model embodiment one;

[0022] Figure 3 It is a third structure schematic view of the gas cylinder of the utility model embodiment one.

[0023] BRIEF DESCRIPTION OF DRAWINGS

[0024] 1, inner container; 2, valve seat; 3, adapter; 4, sealing ring;

[0025] 101, cylinder;

[0026] 200, communication hole; 201, protrusion;

[0027] 300, through hole; 301, tapered thread; 302, extending portion; 303, stop ring;

[0028] 401, stop ring. DETAILED DESCRIPTION

[0029] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0030] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0031] In addition, in the description of the present application, unless otherwise explicitly limited, the terms "mounting", "connecting", "connection", "connector" should be broadly understood. For example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood in combination with the specific circumstances.

[0032] The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0033] Embodiment one

[0034] The present embodiment relates to a gas cylinder to solve the problem of complex connection structure and connection mode between the inner container 1, valve seat 2 and adapter 3 of the gas cylinder in the prior art, which leads to low production efficiency of the gas cylinder and high production cost.

[0035] In terms of overall structure, the gas cylinder described in the present embodiment includes a bottle body, which includes an inner container 1, a valve seat 2 and an adapter 3. The inner container 1 has an end with a venting port provided with a plug-in part, the valve seat 2 is provided with a matching part adapted to the plug-in part, the matching part and the plug-in part form a plug-in cooperation, the adapter 3 is connected with the valve seat 2, and at least part of the plug-in part is clamped between the two, thereby connecting the inner container 1, the valve seat 2 and the adapter 3 together.

[0036] The gas cylinder described in the embodiment is inserted and matched with the matching part on the valve seat 2 through the inserting part on the inner container 1, which is beneficial to simplify the connection relationship between the inner container 1 and the valve seat 2, so that the two can be assembled together more accurately. The inner container 1, the valve seat 2 and the adapter 3 are connected together through the adapter 3 connected with the valve seat 2 and the at least part of the inserting part clamped therebetween, which is beneficial to enhance the stability of the connection between the inner container 1, the valve seat 2 and the adapter 3, prevent the relative displacement of the three in the radial direction, and further ensure the reliability of the connection during the use of the gas cylinder, thereby improving the use performance of the gas cylinder.

[0037] The gas cylinder in the embodiment may be a hydrogen storage cylinder for storing hydrogen, for example, and the inner container 1 may be injection molded with plastic material, and the valve seat 2 and the adapter 3 may be made of metal material. As a feasible implementation manner, the valve seat 2 may be first processed and formed, placed in the cavity of the molded inner container 1, and connected between the inner container 1 and the valve seat 2 as the inner container 1 is molded. Of course, the inner container 1 and the valve seat 2 may also be made of metal material, at which time the two may be separately processed and then connected together through the inserting part and the matching part.

[0038] Based on the overall introduction as above, the first exemplary structure of the gas cylinder described in the embodiment is shown in FIG. 1. Figure 1 In order to highlight the connection structure and relationship among the inner container 1, the valve seat 2 and the adapter 3, only part of the structure of the inner container 1 is shown in the figure. The inserting part in the embodiment includes a cylinder body 101 arranged along the edge of the air vent, and a slot arranged around the cylinder body 101, and the cylinder body 101 extends to the outside of the inner container 1. The matching part includes a protrusion 201 adapted to the slot, and a groove adapted to the cylinder body 101.

[0039] In the embodiment, the cylinder body 101 provides a connection basis for the matching of the valve seat 2 and plays a role of positioning and guiding. The slot and the corresponding protrusion 201 structure on the valve seat 2 are adapted to each other, which can realize the inserting and matching between the inserting part and the matching part, and is beneficial to enhance the stability of the connection between the two.

[0040] Specifically, the cylinder body 101 is arranged along the axial direction of the inner container 1 and extends to the outside of the inner container 1 in the direction away from the inner container 1, and the diameter of the cylinder body 101 is smaller than the diameter of the end of the inner container 1. The slot is arranged along the outer periphery of the root of the cylinder body 101. The shape of the protrusion 201 is the same as that of the slot, and the inner wall of the slot and the protrusion 201 respectively abut when the two are in the inserted state. The groove is arranged through the axial direction of the valve seat 2, and the cylinder body 101 is specifically inserted in the groove. Here, the cross section of the groove and the outer contour of the cross section of the protrusion 201 are both circular.

[0041] In this embodiment, the cross-sectional areas of both the slot and the protrusion 201 are gradually reduced along the direction pointing towards the interior of the inner liner 1, which helps to improve the insertion effect between the slot and the protrusion 201. In this embodiment, the insertion and engagement of the slot and the protrusion 201, as well as the insertion and engagement of the cylinder 101 in the groove, not only helps to limit the displacement of the valve seat 2 along the direction pointing towards the inner liner 1, but also helps to limit the radial displacement of the valve seat 2 in the cylinder 101.

[0042] In a preferred embodiment, the valve seat 2 has a connecting hole 200 communicating with the vent, and the adapter 3 has a through hole 300 communicating with the connecting hole 200. One end of the adapter 3 is inserted into the connecting hole 200 and is screwed to the valve seat 2 via a tapered thread 301. At least a portion of the cylinder 101 is sandwiched between the protrusion 201 and the other end of the adapter 3. Here, the adapter 3 and the valve seat 2 are screwed together via the tapered thread 301. As the tapered thread 301 is gradually tightened, a large axial force is generated, causing the adapter 3 and the valve seat 2 to fit tightly together, greatly enhancing the tightness of their connection. The casing 101 being sandwiched between the protrusion 201 and the other end of the adapter 3 also helps to strengthen the connection stability between the inner liner 1, the valve seat 2, and the adapter 3.

[0043] Specifically, refer to Figure 1 As shown, the outer side of the top of the adapter 3 is provided with the aforementioned tapered thread 301, and a threaded section for screwing into the tapered thread 301 is provided between the groove and the connecting hole 200. The diameter of the tapered thread 301 gradually decreases in the direction away from the inner liner 1. With the tapered thread 301 screwed into the threaded section, the outer peripheral wall of the bottom of the adapter 3 abuts against the inner peripheral wall of the cylinder 101.

[0044] To ensure a good seal between the adapter 3 and the cylinder 101, a sealing structure is provided between the cylinder 101 and the adapter 3. This sealing structure seals the gap between the cylinder 101 and the adapter 3. As one feasible implementation, the inner circumferential wall of the cylinder 101 has a thinned portion arranged along its circumference, and the sealing structure is located between the thinned portion and the adapter 3. This not only facilitates the arrangement and implementation of the sealing structure, but the thinner wall thickness also helps reduce leakage failure caused by deformation of the inner liner 1. As another feasible implementation, the thinned portion is located on the inner circumferential wall at the top of the cylinder 101. The sealing structure in this embodiment includes a sealing ring 4, which has a simple structure, is easy to arrange and implement, and provides a good sealing effect.

[0045] In addition, in this embodiment, the insertion part and the mating part are preferably overfitted. With the insertion and mating of the two, and the screw connection between the adapter 3 and the valve seat 2, the cylinder 101 is clamped between the valve seat 2 and the adapter 3. The connection method of the components here is simple and easy to operate. It can also simplify the structure of the gas storage cylinder, thereby improving assembly efficiency and reducing production costs.

[0046] The second exemplary structure of the gas cylinder in the embodiment is shown in Figure 2 , in which the valve seat 2 has a communication hole 200 communicating with the air vent, the adapter 3 is screwed in the communication hole 200 and has a protruding part 302 extending into the communication hole 200 and a stop ring 303 abutting against the outer end surface of the valve seat 2, and the cylinder body 101 is clamped between the protrusion 201 and the protruding part 302.

[0047] In the embodiment, the adapter 3 is screwed in the communication hole 200, and the protruding part 302 and the stop ring 303 of the adapter 3 are arranged such that when the stop ring 303 abuts against the outer end surface of the valve seat 2 tightly, it indicates that the adapter 3 is installed in place in the axial direction, and the cylinder body 101 is clamped between the protrusion 201 and the protruding part 302, which is conducive to improving the connection reliability among the inner liner 1, the valve seat 2 and the adapter 3.

[0048] As shown in Figure 2 , the difference between it and the gas cylinder in Figure 1 is that the structure and arrangement of the adapter 3 are different. In detail, the communication hole 200 and the groove are sequentially communicated up and down. The protruding part 302 of the adapter 3 is screwed and connected to the communication hole 200 from the outside to the inside, and the stop ring 303 approaches the outer end surface of the valve seat 2 as the screwing length of the protruding part 302 and the communication hole 200 increases. When the stop ring 303 abuts against the outer end surface of the valve seat 2, it indicates that the adapter 3 is screwed in place with the valve seat 2. Moreover, the bottom end of the protruding part 302 installed in place is located in the groove, so that the protruding part 302 is located on the inside of the cylinder body 101, the protrusion 201 is located on the outside of the cylinder body 101, and the cylinder body 101 is clamped between the protrusion 201 and the protruding part 302.

[0049] In order to improve the sealing among the inner liner 1, the valve seat 2 and the adapter 3, a sealing structure is arranged at the connection among the protruding part 302, the protrusion 201 and the cylinder body 101, and the sealing structure is used to seal the gap at the connection. As shown in Figure 2 , as a feasible implementation, the sealing structure includes a sealing ring 4, a stop ring 401 is arranged on the inner peripheral wall of the protrusion 201, and the sealing ring 4 is clamped between the stop ring 401 and the end surface of the cylinder body 101 in the axial direction of the protruding part 302, and is clamped between the protrusion 201 and the protruding part 302 in the radial direction of the protruding part 302. Here, by arranging the sealing ring 4, it is conducive to improving the sealing among the valve seat 2, the adapter 3 and the inner liner 1.

[0050] The third exemplary structure of the gas cylinder in the embodiment is shown in Figure 3 , which is different from the gas cylinder in Figure 2 only in the sealing structure. Figure 3The sealing structure in the inner container 1 comprises a sealing ring 4 arranged between the outer peripheral wall of the extending part 302 and the inner peripheral wall of the cylinder body 101, which is beneficial to further improve the radial sealing effect between the inner container 1 and the adapter 3, and further improve the sealing effect among the inner container 1, the valve seat 2 and the adapter 3.

[0051] The gas cylinder with the above various structural forms according to the embodiment has the advantages that the connection among the inner container 1, the valve seat 2 and the adapter 3 is simpler and has higher connection stability, so that the assembling efficiency is improved and the production cost is reduced.

[0052] Embodiment Two

[0053] The embodiment relates to a vehicle, and the vehicle is provided with the gas cylinder described in the embodiment one.

[0054] The vehicle according to the embodiment has the advantages that the use performance of the gas cylinder is improved.

[0055] The above merely provides the preferred embodiments of the utility model, and is not intended to limit the utility model, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A gas cylinder, characterized in that: comprising a cylinder body, the cylinder body comprising an inner container (1), a valve seat (2) and an adapter (3); the inner container (1) is provided with a plug-in part at one end of a vent port, the valve seat (2) is provided with a matching part adapted to the plug-in part, the matching part and the plug-in part form a plug-in fit, the adapter (3) is connected with the valve seat (2), and at least part of the plug-in part is clamped between the two, thereby connecting the inner container (1), the valve seat (2) and the adapter (3) together.

2. The gas cylinder according to claim 1, characterized in that: the plug-in part comprises a cylinder body (101) provided along the edge of the vent port, and a slot (102) provided around the cylinder body (101), the cylinder body (101) extends to the outside of the inner container (1); the matching part comprises a protrusion (201) adapted to the slot (102), and a groove adapted to the cylinder body (101).

3. The gas cylinder according to claim 2, characterized in that: the valve seat (2) has a communication hole (200) communicating with the vent port, and the adapter (3) has a through hole (300) communicating with the communication hole (200); one end of the adapter (3) is inserted into the communication hole (200) and connected with the valve seat (2) through a tapered thread (301), and at least part of the cylinder body (101) is clamped between the protrusion (201) and the other end of the adapter (3).

4. The gas cylinder according to claim 3, characterized in that: a sealing structure is provided between the cylinder body (101) and the adapter (3), and the sealing structure is used to seal the gap between the two.

5. The gas cylinder according to claim 4, characterized in that: the inner circumferential wall of the cylinder body (101) has a thinned portion provided along the circumferential direction thereof, and the sealing structure is provided between the thinned portion and the adapter (3).

6. The gas cylinder according to claim 2, characterized in that: the valve seat (2) has a communication hole (200) communicating with the vent port, the adapter (3) is screwed into the communication hole (200) and has a protruding portion (302) extending into the communication hole (200), and a stop ring (303) abutting against the outer end surface of the valve seat (2); the cylinder body (101) is clamped between the protrusion (201) and the protruding portion (302).

7. The gas cylinder according to claim 6, characterized in that: a sealing structure is provided at the connection between the protruding portion (302), the protrusion (201) and the cylinder body (101), and the sealing structure is used to seal the gap at the connection.

8. A vehicle, characterized in that: the vehicle is provided with the gas cylinder according to any one of claims 1 to 7. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

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