Refueling plug well lid opening and closing device and storage device

By designing the opening and closing device of the refueling bolt manhole cover, the clamping part is used to fix the connection with the refueling bolt manhole cover, the problem of load-bearing and squatting caused by the refueling worker frequently opening and closing the refueling bolt manhole cover during refueling operations is solved, and the effect of reducing labor intensity and injury risk is achieved.

CN222779499UActive Publication Date: 2025-04-22中国航空油料集团有限公司 +1
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Patent Information

Application Number
CN202421564486.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-03
Publication Date
2025-04-22
Estimated Expiration
2034-07-03

AI Technical Summary

Technical Problem

When performing refueling operations, the gas operator needs to frequently open and close the refueling manhole cover, which will lead to repeated load-bearing and squatting, increasing labor intensity and injury risk.

Method used

A gas bolt manhole cover opening and closing device is designed, including a first operating member and a second operating member, and is fixedly connected to the gas bolt manhole cover through a clamping part, allowing staff to forcefully open or close the gas bolt manhole cover through the gripping part, reducing the need to directly grasp the gas bolt manhole cover.

Benefits of technology

By using the gas refueling bolt manhole cover opening and closing device, the number of times the staff squats with loads during refueling operations is reduced, the labor intensity and fatigue intensity are reduced, the operation efficiency is improved, and the risk of injury caused by handling the gas refueling bolt manhole cover is reduced.

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Abstract

The utility model discloses a refueling bolt well lid opening and closing device and a storage device. The refueling bolt well lid opening and closing device comprises a first operation piece and a second operation piece. The second operating piece is rotationally connected with the first operating piece, and one end of the first operating piece is matched with one end of the second operating piece to form a holding part. And the other end of the first operating piece is matched with the other end of the second operating piece to form a clamping part. The clamping part can be matched with and fixedly connected with the refueling bolt well lid, so that the refueling bolt well lid opening and closing device opens or closes the refueling bolt well lid through the clamping part. By means of the refueling bolt well lid opening and closing device, a worker can open or close a refueling bolt well lid conveniently. The storage device is used for storing the refueling bolt well lid opening and closing device, and after the refueling bolt well lid opening and closing device is used, the refueling bolt well lid opening and closing device can be stored in the storage device.
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Description

Technical Field

[0001] The present invention relates to the technical field of tooling, and in particular to a fuel hydrant manhole cover opening and closing device and a storage device. Background Art

[0002] According to statistics, for pipeline refueling trucks, the refueling attendant needs to open and close the refueling hydrant manhole cover twice for each refueling operation, and the refueling attendant needs to work more than 30 times per shift, and an average of more than 60 squats with weights. The weight of a refueling hydrant manhole cover ranges from 15 kilograms to 22.5 kilograms. The average daily weight of a refueling attendant is about 1.2 tons. If there are many alternate flights due to special weather conditions, the average daily weight will be even higher. Moreover, if the lifting force is not appropriate, it can easily cause sprains of the waist, strains of the hand joints and arms. Utility Model Content

[0003] In view of this, the present invention provides a fuel hydrant manhole cover opening and closing device and a storage device, wherein the fuel hydrant manhole cover opening and closing device can facilitate workers to open or close the fuel hydrant manhole cover.

[0004] Specifically, the present disclosure is achieved through the following technical solutions:

[0005] According to a first aspect of an embodiment of the present disclosure, a fuel hydrant manhole cover opening and closing device is provided, comprising a first operating member and a second operating member. The second operating member is rotatably connected to the first operating member, and one end of the first operating member cooperates with one end of the second operating member to form a gripping portion. The other end of the first operating member cooperates with the other end of the second operating member to form a clamping portion. The clamping portion can cooperate with and be fixedly connected to the fuel hydrant manhole cover, so that the fuel hydrant manhole cover opening and closing device opens or closes the fuel hydrant manhole cover through the clamping portion.

[0006] The technical solution provided by the embodiments of the present disclosure may have the following beneficial effects:

[0007] When the fuel hydrant cover is moved, the clamping part of the fuel hydrant cover opening and closing device can cooperate with and be fixedly connected to the fuel hydrant cover, so that the staff can apply force to the gripping part of the fuel hydrant cover opening and closing device to open or close the fuel hydrant cover. When the fuel hydrant cover opening and closing device is used to open or close the fuel hydrant cover, there is no need for the staff to directly grasp the fuel hydrant cover, so as to avoid injuries to the staff during the handling process, and it is convenient for the staff to open or close the fuel hydrant cover. In addition, the first operating member is rotatably connected to the second operating member, so that the clamping part can be adjusted to cooperate with and be fixedly connected to the fuel hydrant cover.

[0008] The technical solution of the present disclosure is further described below:

[0009] In one embodiment, the gas hydrant cover opening and closing device includes a connecting member, and the first operating member is rotatably connected to the second operating member through the connecting member.

[0010] In one embodiment, the distance from the end of the clamping portion to the connecting member is greater than the distance from the end of the gripping portion to the connecting member.

[0011] In one embodiment, the clamping portion is provided with a bearing member, and when the clamping portion cooperates with the fuel hydrant well cover, the bearing member presses against the fuel hydrant well cover to fix the clamping portion and the fuel hydrant well cover.

[0012] In one embodiment, the gripping portion includes two grips, and the two grips are respectively disposed at an end of the first operating member and an end of the second operating member.

[0013] In one embodiment, the gas hydrant cover opening and closing device further includes an elastic member, one end of the elastic member is connected to the first operating member, and the other end of the elastic member is connected to the second operating member to provide a clamping force for the clamping portion.

[0014] In one embodiment, the elastic member is disposed on the gripping portion.

[0015] According to a second aspect of the embodiments of the present disclosure, a storage device is provided for storing the fuel hydrant manhole cover opening and closing device in any of the above embodiments. The storage device is provided with a receiving groove, and the storage device receives the fuel hydrant manhole cover opening and closing device through the receiving groove, and the fuel hydrant manhole cover opening and closing device can abut against the side wall of the receiving groove.

[0016] The technical solution provided by the embodiments of the present disclosure includes at least the following beneficial effects:

[0017] The storage device is used to store the gas hydrant cover opening and closing device in any of the above-mentioned embodiments. After the gas hydrant cover opening and closing device is used, the gas hydrant cover opening and closing device is accommodated in the storage device through the accommodating groove, and the gas hydrant cover opening and closing device can abut against the side wall of the accommodating groove to ensure the reliability of the placement of the gas hydrant cover opening and closing device.

[0018] The technical solution is further described below:

[0019] In one of the embodiments, the storage device is also provided with a plurality of guide members, which are connected in sequence and surround a guide groove, and the guide groove is connected to the accommodating groove, so that the gas hydrant cover opening and closing device can be accommodated in the accommodating groove through the guide groove.

[0020] In one embodiment, the bottom wall of the receiving groove is provided with an installation groove, and the storage device can be installed through the installation groove.

[0021] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] BRIEF DESCRIPTION OF THE DRAWINGS The drawings constituting a part of the present disclosure are used to provide a further understanding of the present disclosure. The illustrative embodiments of the present disclosure and the description thereof are used to explain the present disclosure and do not constitute an improper limitation on the present disclosure.

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 The present invention is a schematic structural diagram of a fuel hydrant manhole cover opening and closing device shown in one embodiment.

[0025] Figure 2 The present invention is a schematic structural diagram of a fuel hydrant manhole cover opening and closing device shown in one embodiment.

[0026] Figure 3 for Figure 1 The front view structural schematic diagram of the fuel hydrant manhole cover opening and closing device is shown.

[0027] Figure 4 It is a schematic structural diagram of a storage device shown in an embodiment.

[0028] Figure 5 for Figure 4 A schematic top view of the storage device is shown.

[0029] Figure 6 for Figure 4 A front view structural schematic diagram of the storage device shown.

[0030] Description of Figure Numbers.

[0031] 100. Gas hydrant cover opening and closing device; 110. First operating member; 120. Second operating member; 130. Holding portion; 131. Handle; 140. Clamping portion; 150. Connecting member; 160. Bearing member; 170. Elastic member; 200. Storage device; 210. Accommodating groove; 220. Mounting groove; 230. Guide member; 240. Guide groove. DETAILED DESCRIPTION

[0032] Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numerals in different drawings represent the same or similar elements.

[0033] It should be understood that although the terms first, second, third, etc. may be used in the present disclosure to describe various information, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present disclosure, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information.

[0034] With the development of social economy, civil aviation is also developing rapidly. China's aviation fuel filling volume is growing rapidly at an annual rate of more than 10%, which puts forward higher standards and requirements for aircraft refuelers in terms of technology and physical fitness. According to statistics, for pipeline refueling vehicles, refuelers need to open and close the fuel hydrant cover twice for each refueling operation, and refuelers need to work more than 30 times per shift, and an average of more than 60 weighted squats. The weight of a fuel hydrant cover ranges from 15 kilograms to 22.5 kilograms. The average daily weight of a refueler is about 1.2 tons. If there are many alternate flights in special weather, the average daily weight is higher. If the lifting force is not appropriate, it is very easy to cause waist sprains, hand joints and arm strains. If it is rainy and snowy in winter, the opening slot of the hydrant cover is very easy to freeze. The ice in the opening slot will cause the staff to have no grip when lifting the hydrant cover, which increases the difficulty of lifting. If ice water accumulates in the lid opening slot, it will soak the gloves of the staff, which will not only easily cause slipping and accidents during lifting, but the soaked gloves will also frostbite the fingers of the staff.

[0035] Based on this, the present disclosure provides a gas hydrant manhole cover opening and closing device 100, which is used to move the gas hydrant manhole cover to open and close the gas hydrant wellhead. In an application scenario, a refueling assembly is provided in the gas hydrant wellhead, and the refueling assembly can be connected to a tanker truck or a refueling truck to enable the tanker truck to unload oil or refuel the refueling truck. The gas hydrant manhole cover opening and closing device 100 enables workers to easily move the gas hydrant manhole cover without bending over, avoiding workers from directly contacting the gas hydrant manhole cover with their hands and damaging their hands and labor protection supplies, etc., reducing the labor intensity and fatigue intensity of workers, improving work efficiency, and ensuring the health of workers.

[0036] like Figures 1 to 3 As shown, the present disclosure provides a fuel hydrant manhole cover opening and closing device 100, including a first operating member 110 and a second operating member 120. The second operating member 120 is rotatably connected to the first operating member 110, and one end of the first operating member 110 cooperates with one end of the second operating member 120 to form a gripping portion 130. The other end of the first operating member 110 cooperates with the other end of the second operating member 120 to form a clamping portion 140. The clamping portion 140 can cooperate with and be fixedly connected to the fuel hydrant manhole cover, so that the fuel hydrant manhole cover opening and closing device 100 opens or closes the fuel hydrant manhole cover through the clamping portion 140.

[0037] In this way, when the fuel hydrant cover is moved, the clamping portion 140 of the fuel hydrant cover opening and closing device 100 can cooperate with and be fixedly connected to the fuel hydrant cover, so that the staff can apply force to the gripping portion 130 of the fuel hydrant cover opening and closing device 100 to open or close the fuel hydrant cover. When using the fuel hydrant cover opening and closing device 100 to open or close the fuel hydrant cover, there is no need for the staff to directly grasp the fuel hydrant cover, which avoids injuries to the staff during the handling process and facilitates the staff to open or close the fuel hydrant cover. In addition, the first operating member 110 is rotatably connected to the second operating member 120, so that the clamping portion 140 can be adjusted to cooperate with and be fixedly connected to the fuel hydrant cover.

[0038] like Figures 4 to 6 As shown, in some embodiments, the fuel hydrant cover opening and closing device 100 includes a connecting member 150, and the first operating member 110 is rotatably connected to the second operating member 120 through the connecting member 150. The rotatable connection of the first operating member 110 and the second operating member 120 through the connecting member 150 is simple to implement and easy to implement.

[0039] It should be noted that there may be many specific implementations of the connector 150, including but not limited to the combination of bolts and nuts, pins, pin shafts, and the like.

[0040] It should be noted that there are many specific ways to implement the material of the gas hydrant cover opening and closing device 100, including stainless steel, iron, steel, copper, etc.

[0041] In one example, the fuel hydrant cover opening and closing device 100 is made of 304 stainless steel to ensure the strength of the fuel hydrant cover opening and closing device 100.

[0042] In the related art, a cover opening groove is usually provided on the upper surface of the fuel hydrant cover, and the clamping portion 140 of the fuel hydrant cover opening and closing device 100 can cooperate with the cover opening groove and be fixedly connected to open or close the fuel hydrant cover.

[0043] like Figures 4 to 6As shown, in some embodiments, the distance from the end of the clamping portion 140 to the connecting member 150 is greater than the distance from the end of the gripping portion 130 to the connecting member 150. That is, on the first operating member 110, the distance from the end of the clamping portion 140 to the connecting member 150 is greater than the distance from the end of the gripping portion 130 to the connecting member 150. On the second operating member 120, the distance from the end of the clamping portion 140 to the connecting member 150 is greater than the distance from the end of the gripping portion 130 to the connecting member 150. In this way, the distance from the end of the clamping portion 140 to the connecting member 150 is greater than the distance from the end of the gripping portion 130 to the connecting member 150, which can make the force arm of the clamping portion 140 greater than the force arm of the gripping portion 130. By using the principle of lever, it is easier for the staff to open or close the fuel hydrant cover, reduce the labor intensity and fatigue intensity of the staff, improve the working efficiency, and ensure the health of the staff.

[0044] In some embodiments, the distance from the end of the clamping portion 140 to the connecting member 150 ranges from 38 mm to 46 mm.

[0045] Optionally, the distance from the end of the clamping portion 140 to the connecting member 150 may be 38 mm, 40 mm, 42 mm, 44 mm, 46 mm, or the like.

[0046] In some embodiments, the distance from the end of the grip portion 130 to the connector 150 is in the range of 36 mm to 40 mm.

[0047] Optionally, the distance from the end of the gripping portion 130 to the connecting member 150 may be 38 mm, 37 mm, 38 mm, 39 mm or 40 mm, etc.

[0048] like Figures 4 to 6 As shown, in some embodiments, the clamping part 140 is provided with a bearing member 160. When the clamping part 140 is matched with the fuel hydrant cover, the bearing member 160 presses against the fuel hydrant cover so that the clamping part 140 is fixedly connected to the fuel hydrant cover. In this way, when the clamping part 140 is matched with the fuel hydrant cover, specifically, when the clamping part 140 is matched with the cover opening slot of the fuel hydrant cover, part of the clamping part 140 enters the cover opening slot. At this time, the bearing member 160 can press against the lower surface of the fuel hydrant cover so that the clamping part 140 is fixedly connected to the fuel hydrant cover. The use of the bearing member 160 can facilitate the fixed connection between the clamping part 140 and the fuel hydrant cover, thereby improving the efficiency of the staff in opening or closing the fuel hydrant cover using the fuel hydrant cover opening and closing device 100.

[0049] It should be noted that there may be many specific implementations of the carrier 160 and the clamping portion 140 , including but not limited to one-piece molding, separate manufacturing and subsequent assembly, and the like.

[0050] like Figures 4 to 6As shown, in some embodiments, the gripping portion 130 includes two grips 131, which are respectively disposed at the end of the first operating member 110 and the end of the second operating member 120. In this way, when a worker uses the fuel hydrant manhole cover opening and closing device 100 to move the fuel hydrant manhole cover, the worker holds the grip 131 and applies force to the fuel hydrant manhole cover opening and closing device 100 to open or close the fuel hydrant manhole cover. By providing the grip 131 on the gripping portion 130, it is more convenient for the worker to open or close the fuel hydrant manhole cover.

[0051] like Figures 4 to 6 As shown, in some embodiments, the fuel hydrant manhole cover opening and closing device 100 further includes an elastic member 170, one end of the elastic member 170 is connected to the first operating member 110, and the other end is connected to the second operating member 120, so as to provide a clamping force for the clamping portion 140. In this way, when the staff uses the fuel hydrant manhole cover opening and closing device 100 to move the fuel hydrant manhole cover, the staff matches the clamping portion 140 with the fuel hydrant manhole cover, specifically, the clamping portion 140 matches the cover opening groove of the fuel hydrant manhole cover, at this time, under the action of the elastic member 170, the clamping portion 140 has a clamping force, so that the clamping portion 140 and the fuel hydrant manhole cover are clamped, and the fixing effect of the clamping portion 140 and the fuel hydrant manhole cover is further improved.

[0052] It should be noted that there may be many specific implementations of the elastic member 170 , including but not limited to a spring and the like.

[0053] like Figures 4 to 6 As shown, in some embodiments, the elastic member 170 is disposed on the gripping portion 130. Thus, when the staff applies force to the gripping portion 130 of the fuel hydrant manhole cover opening and closing device 100 to open the clamping portion 140, the elastic member 170 is deformed by force to generate a restoring force. When the clamping portion 140 cooperates with the fuel hydrant manhole cover, the clamping portion 140 can be further fixedly connected to the fuel hydrant manhole cover by the restoring force of the elastic member 170. Thus, the reliability of the fuel hydrant manhole cover opening and closing device 100 in opening or closing the fuel hydrant manhole cover is improved.

[0054] In the related art, when performing refueling operations, aircraft refuelers open the refueling hydrant cover and use a pipeline refueling truck to refuel. When there is no need to open or close the refueling hydrant cover, the storage of the refueling hydrant cover opening and closing device 100 becomes a problem that needs to be solved.

[0055] Based on this, Figure 4As shown, the present disclosure further provides a storage device 200 for storing the fuel hydrant manhole cover opening and closing device 100 in any of the above-mentioned embodiments. The storage device 200 is provided with a receiving groove 210, and the storage device 200 receives the fuel hydrant manhole cover opening and closing device 100 through the receiving groove 210, and the fuel hydrant manhole cover opening and closing device 100 can abut against the side wall of the receiving groove 210. In this way, after the fuel hydrant manhole cover opening and closing device 100 is used, the fuel hydrant manhole cover opening and closing device 100 is received in the storage device 200 through the receiving groove 210, and the fuel hydrant manhole cover opening and closing device 100 can abut against the side wall of the receiving groove 210, thereby ensuring the reliability of the placement of the fuel hydrant manhole cover opening and closing device 100.

[0056] It should be noted that there are many specific implementation methods for the storage device 200, including one-piece molding or separate manufacturing and then assembly.

[0057] like Figure 4 As shown, in one example, the storage device 200 is manufactured by integral molding, so that the assembly process can be reduced and the assembly efficiency of the storage device 200 can be improved.

[0058] In some embodiments, the storage device 200 is disposed on the pipeline refueling vehicle. Thus, the storage device 200 is installed on the pipeline refueling vehicle to ensure that the fuel plug manhole cover opening and closing device 100 is safely placed on the pipeline refueling vehicle for operation, and is convenient to use and does not come loose.

[0059] like Figure 4 As shown, in some embodiments, the bottom wall of the receiving tank 210 is provided with a mounting groove 220, and the storage device 200 can be installed through the mounting groove 220. In this way, by providing the mounting groove 220 on the bottom wall of the receiving tank 210, and the storage device 200 can be installed on the pipeline refueling vehicle through the mounting groove 220, this method is easy to implement and has high reliability.

[0060] In one example, the storage device 200 further includes a fastener, which fixes the storage device 200 to the frame of the pipeline refueling vehicle through the mounting groove 220. This method is simple to implement and has low implementation cost.

[0061] It should be noted that there may be many specific implementations of fasteners, including but not limited to threaded fasteners such as fastening screws and fastening bolts.

[0062] like Figure 4As shown, in some embodiments, the storage device 200 is further provided with a plurality of guide members 230, which are connected in sequence and surround a guide groove 240, which is communicated with the receiving groove 210, and the fuel hydrant manhole cover opening and closing device 100 can be received in the receiving groove 210 through the guide groove 240. In this way, when the staff stores the fuel hydrant manhole cover opening and closing device 100 in the storage device 200, the guide groove 240 is used to receive the fuel hydrant manhole cover opening and closing device 100 in the receiving groove 210, so as to facilitate the storage of the fuel hydrant manhole cover opening and closing device 100.

[0063] In some embodiments, the opening of the guide groove 240 is trumpet-shaped, so as to further facilitate the fuel hydrant manhole cover opening and closing device 100 to be accommodated in the accommodation groove 210 through the guide groove 240 .

[0064] It should be noted that there are many specific implementations of the material of the storage device 200, including but not limited to stainless steel, iron, steel, copper, etc.

[0065] In some embodiments, the length of the receiving groove 210 is slightly greater than the length from the end of the clamping portion 140 to the end of the gripping portion 130 of the fuel hydrant manhole cover opening and closing device 100. In this way, the fuel hydrant manhole cover opening and closing device 100 can be firmly accommodated in the receiving groove 210, so as to prevent the fuel hydrant manhole cover opening and closing device 100 from jumping out or falling during the driving and operation of the pipeline refueling vehicle, thereby ensuring safety and reliability during use.

[0066] In one example, the length of the receiving groove 210 ranges from 78 mm to 86 mm.

[0067] Optionally, the length of the receiving groove 210 may be 78 mm, 80 mm, 82 mm, 84 mm, or 86 mm, etc.

[0068] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0069] The above embodiments only express several implementation methods of the present disclosure, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the utility model concept of the present disclosure, and these all belong to the protection scope of the present disclosure.

Claims

1. A fuel hydrant manhole cover opening and closing device, characterized in that: include: a first operating member; as well as A second operating member, rotatably connected to the first operating member, one end of the first operating member cooperates with one end of the second operating member to form a gripping portion; The other end of the first operating member cooperates with the other end of the second operating member to form a clamping portion; the clamping portion can cooperate with and be fixedly connected to the fuel hydrant manhole cover, so that the fuel hydrant manhole cover opening and closing device opens or closes the fuel hydrant manhole cover through the clamping portion.

2. The fuel hydrant manhole cover opening and closing device according to claim 1, characterized in that: The fuel hydrant cover opening and closing device includes a connecting member, and the first operating member is rotatably connected to the second operating member through the connecting member.

3. The fuel hydrant manhole cover opening and closing device according to claim 2, characterized in that: The distance from the end of the clamping portion to the connecting member is greater than the distance from the end of the holding portion of the first operating member to the connecting member.

4. The fuel hydrant manhole cover opening and closing device according to claim 1, characterized in that: The clamping portion is provided with a bearing member. When the clamping portion is matched with the fuel hydrant well cover, the bearing member presses against the fuel hydrant well cover to fix the clamping portion and the fuel hydrant well cover in connection.

5. The fuel hydrant manhole cover opening and closing device according to claim 1, characterized in that: The holding portion includes two handles, and the two handles are respectively arranged at the end of the first operating member and the end of the second operating member.

6. The fuel hydrant manhole cover opening and closing device according to claim 1, characterized in that: The gas hydrant manhole cover opening and closing device also includes an elastic member, one end of which is connected to the first operating member, and the other end of which is connected to the second operating member to provide a clamping force for the clamping portion.

7. The fuel hydrant manhole cover opening and closing device according to claim 6, characterized in that: The elastic member is arranged on the holding portion.

8. A storage device for storing the fuel hydrant manhole cover opening and closing device according to any one of claims 1 to 7, characterized in that: The storage device is provided with a receiving groove, and the storage device receives the fuel hydrant manhole cover opening and closing device through the receiving groove, and the fuel hydrant manhole cover opening and closing device can abut against the side wall of the receiving groove.

9. The storage device according to claim 8, characterized in that: The storage device is also provided with a plurality of guide members, which are connected in sequence and surround a guide groove, wherein the guide groove is connected to the accommodating groove, and the gas hydrant cover opening and closing device can be accommodated in the accommodating groove through the guide groove.

10. The storage device according to claim 8, characterized in that: The bottom wall of the accommodating groove is provided with an installation groove, and the storage device can be installed through the installation groove.