Top loading crane pipe with quick separation function

Abstract

A top loading crane pipe with a quick separation function comprises a stand column, an inner arm, an outer arm and a vertical pipe, the inner arm is rotationally installed on the stand column, the outer arm is rotationally installed on the inner arm, the vertical pipe is rotationally installed on the outer arm through a breaking bolt turning plate type snap valve, and a spring cylinder is further installed between the inner arm and the outer arm; the breaking bolt turning plate type breakaway valve comprises an upper valve body and a lower valve body, guide valve elements are installed in valve cavities of the upper valve body and the lower valve body, valve clacks of the guide valve elements are installed in the valve cavities through torsional springs, limiting strips are further arranged on the valve clacks, one end of the upper valve body is provided with an upper butt welding flange matched with an outer arm through a connecting bolt, and the other end of the upper valve body is provided with a lower butt welding flange matched with an inner arm through a connecting bolt. A clamping groove is formed in the other end of the upper valve body, a lower butt welding flange matched with the vertical pipe is installed at one end of the lower valve body through a connecting bolt, and a protruding block matched with the clamping groove is arranged at the other end of the lower valve body. The device is reasonable in design, convenient to operate, simple, reliable and capable of rapidly separating the loading arm loading arm from the tank car in emergency.

Description

Technical Field

[0001] The utility model relates to a top loading loading arm, in particular to a top loading loading arm with a quick detachment function. Background Art

[0002] At present, due to the lack of an emergency detachment device, during the filling operation, if a vehicle slips or the tank truck collides with the loading arm when passing through the trestle, once this collision exceeds the strength threshold that the loading arm can withstand, it is extremely easy to cause damage to the loading arm, and then lead to medium leakage. This leakage will not only cause environmental pollution, but also may bring serious safety hazards, posing a threat to the safety of personnel and equipment. Therefore, we need a top loading loading arm with an emergency detachment function to cope with these potential risks and challenges. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a top loading loading arm with a quick detachment function that is reasonably designed, easy and simple to operate, reliable, and can quickly separate the loading and unloading arm from the tank truck in an emergency, aiming at the deficiencies of the prior art.

[0004] The technical problem to be solved by the utility model is realized through the following technical solutions. The utility model is a top loading loading arm with a quick detachment function, including a column, an inner arm, an outer arm, and a vertical pipe. The inner arm is rotatably installed on the column, the outer arm is rotatably installed on the inner arm, the vertical pipe is rotatably installed on the outer arm through a breakable bolt flap type rupture valve, and a spring cylinder is also installed between the inner arm and the outer arm; the breakable bolt flap type rupture valve includes an upper valve body and a lower valve body for mutual cooperation. Guide position valve cores are installed in the valve cavities of the upper valve body and the lower valve body. The valve flap of the guide position valve core is installed in the valve cavity through a torsion spring, and a limit strip is also arranged on the valve flap. One end of the upper valve body is installed with an upper butt welding flange for cooperation with the outer arm through a connecting bolt, and a clamping groove is arranged at the other end of the upper valve body. One end of the lower valve body is installed with a lower butt welding flange for cooperation with the vertical pipe through a connecting bolt, and a convex block for cooperation with the clamping groove is arranged at the other end of the lower valve body. The lower valve body is docked with the upper valve body through the cooperation of the convex block and the clamping groove and is locked through a breakable bolt connection.

[0005] The technical problem to be solved by the utility model can also be further realized through the following technical solutions. For the above-mentioned top loading loading arm with a quick detachment function, an inlet component is installed on the column, the inner arm is rotatably connected to the inlet component through a rotary joint, a bearing seat assembly for cooperation with the inner arm and an inner arm locking mechanism are also installed on the column, and a vacuum valve is installed on the inner arm.

[0006] The technical problem to be solved by the present utility model can also be further realized by the following technical solutions. For the above-mentioned top loading loading arm with a quick detachment function, the outer arm is rotatably connected to the inner arm through a rotary joint. A locking rod is installed on the inner arm, and a locking rod sleeve cooperating with the locking rod is installed on the outer arm. A balance connection bracket is also installed between the inner arm and the outer arm.

[0007] The technical problem to be solved by the present utility model can also be further realized by the following technical solutions. For the above-mentioned top loading loading arm with a quick detachment function, the upper butt welding flange is rotatably connected to the outer arm through a rotary joint, and the lower butt welding flange is fixedly connected to the vertical pipe.

[0008] The technical problem to be solved by the present utility model can also be further realized by the following technical solutions. For the above-mentioned top loading loading arm with a quick detachment function, flange O-rings are also installed between the upper butt welding flange and the upper valve body, and between the lower butt welding flange and the lower valve body.

[0009] The technical problem to be solved by the present utility model can also be further realized by the following technical solutions. For the above-mentioned top loading loading arm with a quick detachment function, a guide valve core O-ring and a snap ring cooperating with the guide valve core are also installed in the valve cavities of the upper valve body and the lower valve body.

[0010] The technical problem to be solved by the present utility model can also be further realized by the following technical solutions. For the above-mentioned top loading loading arm with a quick detachment function, a valve body O-ring cooperating with the upper valve body is also installed on the lower valve body at the convex block.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] 1. The present utility model is easy to operate, convenient to dock, can automatically detach when exceeding the range, and the medium in the pipeline will not leak, which helps to ensure the personal and property safety during the loading and unloading process of the loading arm, reduce accident losses, and avoid environmental pollution.

[0013] 2. The present utility model has a simple principle, is reliable and easy to manufacture, has a reasonable structure, can be reused, is economical and applicable, and has a high reliability level.

[0014] 3. The present utility model can quickly separate the loading and unloading arm of the loading arm from the tank truck in case of emergency, serving as a safety protection device to protect the loading arm and the tank truck from mechanical damage, thereby reducing the maintenance time and cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the present utility model;

[0016] Figure 2This is a schematic structural diagram of the breakable bolt flap type breakaway valve of the present utility model. Detailed implementation manners

[0017] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0018] Refer to Figure 1-2 , a top loading loading arm with a quick detachment function, including a column 1, an inner arm 6, an outer arm 10 and a vertical pipe 12. The inner arm 6 is rotatably installed on the column 1, the outer arm 10 is rotatably installed on the inner arm 6, and the vertical pipe 12 is rotatably installed on the outer arm 10 through a breakable bolt flap type breakaway valve 11. A spring cylinder 8 is also installed between the inner arm 6 and the outer arm 10, enabling relative rotation between the inner arm 6 and the column 1, relative rotation between the outer arm 10 and the inner arm 6, and relative rotation between the vertical pipe 12 and the outer arm 10, so as to facilitate inserting the vertical pipe 12 into the tank car to achieve the loading operation;

[0019] At the same time, in order to better realize the rotation actions of the inner arm 6 and the outer arm 10, an inlet component 4 is installed on the column 1. The inner arm 6 is rotatably connected to the inlet component 4 through a rotary joint. A bearing seat assembly 3 and an inner arm locking mechanism 2 cooperating with the inner arm 6 are also installed on the column 1, and a vacuum valve 5 is installed on the inner arm 6; the outer arm 10 is rotatably connected to the inner arm 6 through a rotary joint. A locking rod is installed on the inner arm 6, and a locking rod sleeve 9 cooperating with the locking rod is installed on the outer arm 10. A balance connection bracket 7 is also installed between the inner arm 6 and the outer arm 10; the inner arm locking mechanism 2 may include locking plates installed on the inner arm 6 and the column 1, and locking holes are provided on the locking plates, facilitating inserting a pin into the locking holes to lock the inner arm 6 and the column 1 to achieve the locking operation of the inner arm 6;

[0020] Secondly, the setting of the breakable bolt flap type breakaway valve 11 is used to quickly separate the loading and unloading arm loading arm from the tank car in an emergency, playing the role of a safety protection device, minimizing the risk of accidents to the greatest extent, and ensuring the safety of operators, equipment and facilities. Specifically:

[0021] The breakable bolt flap-type rupture valve 11 includes an upper valve body 26 and a lower valve body that cooperate with each other. A guiding valve core 29 is installed in the valve cavities of both the upper valve body 26 and the lower valve body. The valve flap 24 of the guiding valve core 29 is installed in the valve cavity through a torsion spring 23, facilitating relative rotation. A limiting strip is also provided on the valve flap 24. When not subject to external force, the valve flap 24 can seal the valve cavity under the action of the torsion spring 23, closing the valve cavity. When the upper valve body 26 and the lower valve body are docked and installed, first push open the valve flap 24 to make it rotate 90°. Then dock the upper valve body 26 and the lower valve body so that the limiting strips on the valve flaps 24 of the upper valve body 26 and the lower valve body come into contact with each other, blocking and limiting each other, so that the valve flap 24 opens the valve cavity to form an effective flow space, allowing the medium to flow smoothly through. In an emergency, the upper valve body 26 and the lower valve body will be pulled apart and separated, and then the limiting strips on the valve flaps 24 of the upper valve body 26 and the lower valve body will be separated from each other. The valve flap 24 will lose the limiting block and rotate 90° in the reverse direction under the action of the torsion spring 23 to seal the valve cavity, closing the valve cavity, thereby preventing the leakage of the medium, reducing the pollution of harmful media to the environment, and reducing the leakage loss of valuable media;

[0022] To install the breakable bolt flap-type rupture valve 11, one end of the upper valve body 26 is installed with an upper butt welding flange 22 that cooperates with the outer arm 10 through a connecting bolt 21. A clamping groove is provided at the other end of the upper valve body 26. One end of the lower valve body is installed with a lower butt welding flange that cooperates with the vertical pipe 12 through a connecting bolt 21, facilitating the rotational connection of the upper valve body 26 with the outer arm 10 through the upper butt welding flange 22 and the rotary joint. The lower valve body is fixedly connected with the vertical pipe 12 through the lower butt welding flange;

[0023] The other end of the lower valve body is provided with a convex block that cooperates with the clamping groove. The lower valve body is docked with the upper valve body 26 through the cooperation of the convex block and the clamping groove and is connected and locked through a breakable bolt 28. Through the cooperation of the convex block and the clamping groove, the docking of the upper valve body 26 and the lower valve body can be realized. Through the breakable bolt 28, the connection and locking of the upper valve body 26 and the lower valve body can be realized. At the same time, under a certain external force in an emergency, the breakable bolt 28 will break, and the upper valve body 26 and the lower valve body can be separated, enabling the loading arm to be quickly separated from the tank truck, protecting the loading arm and the tank truck from mechanical damage, thereby reducing the maintenance time and cost.

[0024] During actual use, to ensure the sealing effect, flange O-rings 30 are also installed between the upper butt welding flange 22 and the upper valve body 26, and between the lower butt welding flange and the lower valve body; a guiding valve core O-ring 31 and a snap ring 25 that cooperate with the guiding valve core 29 are also installed in the valve cavities of the upper valve body 26 and the lower valve body; a valve body O-ring 27 that cooperates with the upper valve body 26 is also installed on the lower valve body at the convex block.

[0025] During use, first install the vertical column, inner arm, outer arm, break-bolt flap-type rupture valve, and vertical pipe in sequence. When docking the upper valve body and the lower valve body of the break-bolt flap-type rupture valve, first push open the valve flap and make the limit strips of the valve flap contact and limit each other to ensure that the valve cavities of the upper valve body and the lower valve body are opened to form an effective flow space, allowing the medium to flow smoothly through;

[0026] When subjected to external force, the break bolt breaks, and the upper valve body and the lower valve body can quickly separate. The limit strips on the valve flap cannot interact with each other. The valve flap is affected by the torsion spring and instantly flips 90° to seal the valve cavity, forming two one-way check valves, thus preventing the leakage of the medium;

[0027] Then, the lower valve body is taken away from the site by the tank truck along with the vertical pipe.

[0028] After that, during the next use, a reset operation needs to be performed on the break-bolt flap-type rupture valve. The reset operation steps are as follows:

[0029] 1. Prepare a complete break bolt;

[0030] 2. Check whether the O-ring of the valve body is intact;

[0031] 3. Use a tooling bolt to push open the valve flap so that the valve flap is at a 90° angle to the valve body;

[0032] 4. After the upper valve body and the lower valve body are aligned, install the break bolt and assemble it with a torque wrench according to the designed torque.

[0033] The advantages of the top loading loading arm with a quick detachment function provided by the present utility model are as follows:

[0034] 1. The structure of the present utility model is lightweight, the inner arm and the outer arm rotate flexibly, the balance of the outer arm is not affected, and the connection between the vertical pipe and the tank truck is convenient;

[0035] 2. The present utility model has check and detachment functions, and can automatically and quickly detach the vertical pipe in case of emergency, protecting the equipment and personal and property safety;

[0036] 3. The present utility model does not require external power, ensures triggering when a danger occurs, instantly closes the valve, has extremely little dripping and relatively small pressure loss;

[0037] 4. The present utility model has small losses, simple reset, and can be reused multiple times;

[0038] 5. When a fire or other dangerous situation occurs in the loading and unloading area, the present utility model can quickly detach from the tank truck, facilitating the immediate departure of the tank truck from the dangerous area and minimizing secondary injuries to the greatest extent;

[0039] 6. The present utility model can be applied to a variety of media and adapt to various harsh climates such as extremely cold and extremely hot.

[0040] The top loading swivel pipe with a quick detachment function provided by the present utility model is used to quickly separate the loading and unloading arm swivel pipe from the tank truck in case of emergency, serving as a safety protection device, minimizing the risk of accidents to the greatest extent, and ensuring the safety of operators, equipment and facilities; after the emergency detachment, the pipeline can also be automatically sealed to prevent the leakage of the medium, reducing the environmental pollution caused by harmful media, reducing the leakage loss of valuable media, protecting the swivel pipe and the tank truck from mechanical damage, and thus reducing the maintenance time and cost.

Claims

1. A top loading loading arm with a quick detachment function, characterized in that: It includes a column, an inner arm, an outer arm and a vertical pipe. The inner arm is rotatably installed on the column, the outer arm is rotatably installed on the inner arm, and the vertical pipe is rotatably installed on the outer arm through a breakable bolt flap-type rupture valve. A spring cylinder is also installed between the inner arm and the outer arm; the breakable bolt flap-type rupture valve includes an upper valve body and a lower valve body for mutual cooperation. Guide valve cores are installed in the valve cavities of the upper valve body and the lower valve body. The valve flap of the guide valve core is installed in the valve cavity through a torsion spring. A limiting strip is also provided on the valve flap. One end of the upper valve body is installed with an upper butt welding flange for cooperation with the outer arm through a connecting bolt. A clamping groove is provided at the other end of the upper valve body. One end of the lower valve body is installed with a lower butt welding flange for cooperation with the vertical pipe through a connecting bolt. A convex block for cooperation with the clamping groove is provided at the other end of the lower valve body. The lower valve body is butted with the upper valve body through the cooperation of the convex block and the clamping groove and is connected and locked through a breakable bolt.

2. The top loading arm with quick disconnection function according to claim 1, characterized in that: An inlet component is installed on the column. The inner arm is rotatably connected to the inlet component through a rotary joint. A bearing seat assembly for cooperation with the inner arm and an inner arm locking mechanism are also installed on the column. A vacuum valve is also installed on the inner arm.

3. The top loading arm with a quick-disconnect function according to claim 1 or 2, characterized in that: The outer arm is rotatably connected to the inner arm through a rotary joint. A locking rod is installed on the inner arm, and a locking rod sleeve for cooperation with the locking rod is installed on the outer arm. A balance connection bracket is also installed between the inner arm and the outer arm.

4. The top loading arm with a quick disconnection function according to claim 1, characterized in that: The upper butt welding flange is rotatably connected to the outer arm through a rotary joint, and the lower butt welding flange is fixedly connected to the vertical pipe.

5. The top loading arm with a quick disconnection function according to claim 1 or 4, characterized in that: Flange O-rings are also installed between the upper butt welding flange and the upper valve body and between the lower butt welding flange and the lower valve body.

6. The top loading arm with a quick disconnection function according to claim 1, characterized in that: A guide valve core O-ring and a snap ring for cooperation with the guide valve core are also installed in the valve cavities of the upper valve body and the lower valve body.

7. The top loading arm with quick disconnection function according to claim 1 or 6, characterized in that: A valve body O-ring for cooperation with the upper valve body is also installed on the lower valve body at the convex block.

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