A loading crane for a storage and transportation workshop

Abstract

The utility model relates to crane pipe technical field, and disclose a kind of loading crane pipe for storage and transport workshop, including outer arm pipe, the inner wall of outer arm pipe is fixedly connected with limiting frame, and the inner wall of outer arm pipe is rotatably connected with rotating head, the outer wall of rotating head is fixedly connected with inner arm pipe, the inner wall of rotating head is provided with sealing assembly, the outer wall of outer arm pipe is provided with heating assembly.This loading crane pipe for storage and transport workshop is provided with outer sleeve pipe, inlet valve, through-hole, inner sleeve pipe, third sealing ring, thread groove, plug and outlet valve, inlet valve is connected with external hot gas pipeline, hot gas enters outer sleeve pipe through inlet valve, hot gas enters inner sleeve pipe through through-hole, outer arm pipe and inner arm pipe are heated uniformly in all directions, without affecting rotation, can effectively prevent the medium conveyed by crane pipe from freezing or solidifying at turning point, ensure that loading operation is carried out smoothly.

Description

Technical Field

[0001] This utility model relates to the field of loading arms technology, specifically a loading arm for use in storage and transportation workshops. Background Technology

[0002] In the asphalt loading operation in the storage and transportation workshop, the original asphalt loading arms only had heat tracing jackets installed on the straight sections of the arms; however, the steering knuckles and elbows of the arms are rotating parts, and due to their special structure, traditional steam and electric heat tracing methods cannot be used; in actual use, asphalt loading arms are prone to freezing at the steering knuckles and elbows.

[0003] The prior art patent document CN214570716U provides a loading arm, which includes a column and an outer arm fixedly installed on the column. An inner arm is rotatably installed on the outer arm, and a vertical pipe is rotatably installed on the inner arm. The outer arm, inner arm, and vertical pipe are rotatably connected to each other, which facilitates loading of oil tankers into tank trucks.

[0004] The existing technology described above allows the inner arm tube to rotate inside the outer arm tube, but during asphalt loading operations, the asphalt loading arm is prone to freezing at the steering knuckle and elbow, leading to blockage and affecting the normal progress of loading operations. This requires manpower and time to clear the blockage. The device cannot effectively solve the freezing problem at the elbow and steering knuckle of the loading arm without affecting its rotation. Therefore, we need a loading arm for storage and transportation workshops. Utility Model Content

[0005] The purpose of this invention is to provide a loading arm for storage and transportation workshops to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a loading arm for a storage and transportation workshop, including an outer arm tube, a limit frame fixedly connected to the inner wall of the outer arm tube, and a rotating head rotatably connected to the inner wall of the outer arm tube, an inner arm tube fixedly connected to the outer wall of the rotating head, a sealing component provided on the inner wall of the rotating head, and a heating component provided on the outer wall of the outer arm tube. The sealing assembly includes a sealing groove, and a first sealing ring is provided on the inner wall of the sealing groove. A second sealing ring is provided on the inner wall of the outer arm tube. A cover plate is slidably connected to the outer wall of the inner arm tube, and a fixing bolt is provided on the outer wall of the cover plate. The heating assembly includes an outer sleeve, and an air inlet valve is provided on the outer wall of the outer sleeve. A through hole is opened on the inner wall of the outer sleeve. An inner sleeve is fixedly connected to the outer wall of the inner sleeve, and a third sealing ring is provided on the inner wall of the inner sleeve. A threaded groove is opened on the inner wall of the inner sleeve, and a plug is threadedly connected to the inner wall of the threaded groove. An air outlet valve is provided on the outer wall of the inner sleeve.

[0007] Preferably, the inner wall shape and size of the outer arm tube match the outer wall shape and size of the rotating head, and the inner wall of the outer arm tube fits into the outer wall of the rotating head.

[0008] Preferably, the inner wall shape and size of the sealing groove match the outer wall shape and size of the first sealing ring, and the inner wall of the sealing groove fits into the outer wall of the first sealing ring.

[0009] Preferably, the outer arm tube is fixed to the cover plate by fixing bolts, and one end of the fixing bolt is threaded through the cover plate and extends into the outer arm tube for connection.

[0010] Preferably, the inner wall shape and size of the outer sleeve match the outer wall shape and size of the inner sleeve, and the inner wall of the outer sleeve fits into the outer wall of the inner sleeve.

[0011] Preferably, the inner sleeve forms a threaded structure with the plug through a threaded groove, and one end of the plug extends into the threaded groove for connection.

[0012] Preferably, one end of the inner arm tube passes through the cover plate and is connected to the rotating head.

[0013] Compared with the prior art, the beneficial effects achieved by this utility model are: First, this utility model is equipped with an outer sleeve, an air inlet valve, a through hole, an inner sleeve, a third sealing ring, a threaded groove, a plug, and an air outlet valve. The air inlet valve is connected to an external hot air pipeline. Hot air enters the outer sleeve through the air inlet valve and enters the inner sleeve through the through hole, providing all-round and uniform heating to the outer and inner sleeves. Without affecting rotation, it can effectively prevent the medium transported by the loading arm from freezing or solidifying at the turning point, ensuring smooth loading operations.

[0014] Secondly, this utility model is provided with a sealing groove, a first sealing ring, a second sealing ring, a cover plate, and fixing bolts. By providing the first sealing ring, the sealing between the outer arm tube and the rotating head is strengthened. By providing the second sealing ring, the sealing between the cover plate and the outer arm tube is strengthened. By providing the third sealing ring, the sealing between the outer sleeve and the inner sleeve is strengthened, which can effectively prevent media leakage. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a schematic diagram of the outer arm tube and rotating head structure of this utility model; Figure 3 This is a schematic diagram of the outer and inner arm tubes of this utility model. Figure 4 This utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0016] The components are as follows: 1. Outer arm tube; 2. Limiting frame; 3. Rotating head; 4. Inner arm tube; 5. Sealing assembly; 501. Sealing groove; 502. First sealing ring; 503. Second sealing ring; 504. Cover plate; 505. Fixing bolt; 6. Heating assembly; 601. Outer sleeve; 602. Air inlet valve; 603. Through hole; 604. Inner sleeve; 605. Third sealing ring; 606. Threaded groove; 607. Plug; 608. Air outlet valve. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] like Figure 1-4 As shown, a loading arm for a storage and transportation workshop includes an outer arm tube 1, a limit frame 2 fixedly connected to the inner wall of the outer arm tube 1, and a rotating head 3 rotatably connected to the inner wall of the outer arm tube 1. An inner arm tube 4 is fixedly connected to the outer wall of the rotating head 3. A sealing assembly 5 is provided on the inner wall of the rotating head 3, and a heating assembly 6 is provided on the outer wall of the outer arm tube 1. The sealing assembly 5 includes a sealing groove 501, and a first sealing ring 502 is provided on the inner wall of the sealing groove 501. A second sealing ring 503 is provided on the inner wall of the outer arm tube 1, and a cover plate is slidably connected to the outer wall of the inner arm tube 4. 504, and the outer wall of the cover plate 504 is provided with fixing bolts 505; the heating component 6 includes an outer sleeve 601, and the outer wall of the outer sleeve 601 is provided with an air inlet valve 602. The inner wall of the outer sleeve 601 is provided with a through hole 603. The outer wall of the inner arm tube 4 is fixedly connected to an inner sleeve 604, and the inner wall of the inner sleeve 604 is provided with a third sealing ring 605. The inner wall of the inner sleeve 604 is provided with a threaded groove 606, and the inner wall of the threaded groove 606 is threadedly connected with a plug 607. The outer wall of the inner sleeve 604 is provided with an air outlet valve 608.

[0019] Through the above technical solution, the intake valve 602 is connected to the external hot air pipeline. Hot air enters the outer sleeve 601 through the intake valve 602 and enters the inner sleeve 604 through the through hole 603, providing all-round and uniform heating to the outer arm tube 1 and the inner arm tube 4. Without affecting rotation, it can effectively prevent the medium transported by the loading arm from freezing or solidifying at the turning point, ensuring smooth loading operations. The first sealing ring 502 enhances the sealing between the outer arm tube 1 and the rotating head 3, the second sealing ring 503 enhances the sealing between the cover plate 504 and the outer arm tube 1, and the third sealing ring 605 enhances the sealing between the outer sleeve 601 and the inner sleeve 604, effectively preventing medium leakage.

[0020] Specifically, the inner wall shape and size of the outer arm tube 1 match the outer wall shape and size of the rotating head 3, and the inner wall of the outer arm tube 1 fits into the outer wall of the rotating head 3.

[0021] The above technical solution strengthens the connection between the outer arm tube 1 and the rotating head 3, making it easier for the rotating head 3 to rotate more stably inside the outer arm tube 1 during rotation.

[0022] Specifically, the inner wall shape and size of the sealing groove 501 match the outer wall shape and size of the first sealing ring 502, and the inner wall of the sealing groove 501 fits against the outer wall of the first sealing ring 502.

[0023] The above technical solution enhances the connection between the sealing groove 501 and the first sealing ring 502, making it easier for the first sealing ring 502 to be installed in the sealing groove 501.

[0024] Specifically, the outer arm tube 1 is fixed to the cover plate 504 by fixing bolts 505, and one end of the fixing bolts 505 is threaded through the cover plate 504 and extends into the outer arm tube 1 for connection.

[0025] The above technical solution allows for the removal of the plug 607, the insertion of a tool into the threaded groove 606, and the disassembly of the fixing bolt 505. The fixing bolt 505 can be a hexagonal head bolt. After the fixing bolt 505 is removed, the cover plate 504 can be separated from the outer arm tube 1, and the first sealing ring 502 on the rotating head 3 can be inspected and replaced. The operation is simple and convenient to use.

[0026] Specifically, the inner wall shape and size of the outer sleeve 601 match the outer wall shape and size of the inner sleeve 604, and the inner wall of the outer sleeve 601 fits into the outer wall of the inner sleeve 604.

[0027] With the above technical solution, the outer sleeve 601 is fixed on the outer arm tube 1, and when the inner sleeve 604 rotates, the inner sleeve 604 rotates more stably on the outer sleeve 601.

[0028] Specifically, the inner sleeve 604 forms a threaded structure with the plug 607 through the threaded groove 606, and one end of the plug 607 extends into the threaded groove 606 for connection.

[0029] Through the above technical solution, the threads in the threaded groove 606 and the threads on the plug 607 are matched with each other, which makes it easy for the plug 607 to be threadedly installed on the threaded groove 606.

[0030] Specifically, one end of the inner arm tube 4 passes through the cover plate 504 and is connected to the rotating head 3.

[0031] The above technical solution facilitates the insertion of the rotating head 3 into the outer arm tube 1 for installation. By using the fixing bolt 505 to fix the cover plate 504 to the outer arm tube 1, the rotating head 3 can rotate more stably inside the outer arm tube 1 under the limiting bracket 2 and the cover plate 504.

[0032] In operation, the inlet valve 602 is first connected to an external hot air pipe via a flexible metal hose. The inlet valve 602 controls the flow rate of hot air entering the outer sleeve 601, ensuring a stable supply of hot air that meets heating requirements. The medium to be transported enters the rotating head 3 from the outer arm tube 1, and then flows into the inner arm tube 4 from the rotating head 3. To prevent freezing or solidification of the medium at the turning point of the loading arm, external hot air enters the outer sleeve 601 through the inlet valve 602 to heat the outer arm tube 1. Because the inner wall of the outer sleeve 601 has through holes 603, hot air enters the inner sleeve 604 through these holes to heat the inner arm tube 4. The hot air flows between the outer sleeve 601 and the inner sleeve 604, providing uniform heating from all directions. This effectively increases the internal temperature of the loading arm without affecting its rotation, allowing the medium to start heating. To maintain good fluidity and ensure smooth loading operations, the exhaust valve 608 promptly discharges condensate or excess gas generated during heating, maintaining stable system pressure and further improving heating efficiency and stability. During rotation, the rotating head 3 can rotate within the outer arm tube 1, and the inner sleeve 604 can rotate within the outer sleeve 601, allowing the inner arm tube 4 to rotate smoothly. During rotation, the limiting bracket 2 on the inner wall of the outer arm tube 1 and the cover plate 504 limit the rotation of the rotating head 3, ensuring stable rotation within the outer arm tube 1 and preventing swaying or deviation, thus ensuring smooth medium transport. The rotation allows for easy adjustment of the position and angle of the loading arm to align with the loading port of the transport vehicle, facilitating smooth loading of the medium. This completes all the work. Content not described in detail in this specification belongs to prior art known to those skilled in the art.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A loading arm for a storage and transportation workshop, comprising an outer arm tube (1), characterized in that: The inner wall of the outer arm tube (1) is fixedly connected to a limit frame (2), and the inner wall of the outer arm tube (1) is rotatably connected to a rotating head (3). The outer wall of the rotating head (3) is fixedly connected to an inner arm tube (4). The inner wall of the rotating head (3) is provided with a sealing component (5), and the outer wall of the outer arm tube (1) is provided with a heating component (6). The sealing assembly (5) includes a sealing groove (501), and the inner wall of the sealing groove (501) is provided with a first sealing ring (502). The inner wall of the outer arm tube (1) is provided with a second sealing ring (503). The outer wall of the inner arm tube (4) is slidably connected with a cover plate (504), and the outer wall of the cover plate (504) is provided with a fixing bolt (505). The heating assembly (6) includes an outer sleeve (601), and an air inlet valve (602) is provided on the outer wall of the outer sleeve (601). A through hole (603) is opened on the inner wall of the outer sleeve (601). An inner sleeve (604) is fixedly connected to the outer wall of the inner arm tube (4). A third sealing ring (605) is provided on the inner wall of the inner sleeve (604). A threaded groove (606) is opened on the inner wall of the inner sleeve (604), and a plug (607) is threadedly connected to the inner wall of the threaded groove (606). An air outlet valve (608) is provided on the outer wall of the inner sleeve (604).

2. The loading arm for a storage and transportation workshop according to claim 1, characterized in that: The inner wall shape and size of the outer arm tube (1) match the outer wall shape and size of the rotating head (3), and the inner wall of the outer arm tube (1) fits against the outer wall of the rotating head (3).

3. The loading arm for a storage and transportation workshop according to claim 1, characterized in that: The inner wall shape and size of the sealing groove (501) match the outer wall shape and size of the first sealing ring (502), and the inner wall of the sealing groove (501) fits against the outer wall of the first sealing ring (502).

4. The loading arm for a storage and transportation workshop according to claim 1, characterized in that: The outer arm tube (1) is fixed to the cover plate (504) by fixing bolts (505), and one end of the fixing bolt (505) is threaded through the cover plate (504) and extends into the outer arm tube (1) for connection.

5. A loading arm for a storage and transportation workshop according to claim 1, characterized in that: The inner wall shape and size of the outer sleeve (601) match the outer wall shape and size of the inner sleeve (604), and the inner wall of the outer sleeve (601) fits against the outer wall of the inner sleeve (604).

6. A loading arm for a storage and transportation workshop according to claim 1, characterized in that: The inner sleeve (604) forms a threaded structure with the plug (607) through the threaded groove (606), and one end of the plug (607) extends into the threaded groove (606) for connection.

7. A loading arm for a storage and transportation workshop according to claim 1, characterized in that: One end of the inner arm tube (4) passes through the cover plate (504) and is connected to the rotating head (3).

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