A quick docking and positioning mechanism for LNG loading and unloading truck arm flanges

Abstract

This utility model discloses a quick docking and positioning mechanism for LNG loading and unloading truck arm flanges, relating to the technical field of LNG unloading equipment. It includes a first connecting arm and a second connecting arm, arranged sequentially from left to right. A first flange is fixedly mounted on the side of the first connecting arm near the second connecting arm, and a second flange is fixedly mounted on the end of the second connecting arm near the first connecting arm. Multiple insert rods are fixedly sleeved within the through-hole of the second flange, and these insert rods are inserted into the corresponding through-holes of the first flange. Each insert rod has a slot at its end away from the first flange and near the first connecting arm. A rotating sleeve is rotatably fitted onto the outer wall of the first connecting arm, and a limit ring is fixedly fitted onto the outer wall of the rotating sleeve at its end near the first flange. This utility model enables quick docking of LNG loading and unloading truck arm flanges without the need for tools, significantly saving manpower and improving work efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of LNG unloading equipment, specifically to a quick docking and positioning mechanism for the boom flange of an LNG loading and unloading vehicle. Background Technology

[0002] In LNG loading and unloading operations, the connection between the loading arm and the transport equipment is usually achieved through flange docking. Currently, the existing LNG loading and unloading arm flange docking process requires operators to use tools such as wrenches for alignment and fixing, which is not only cumbersome and labor-intensive, but also inefficient, affecting the overall loading and unloading operation progress. Utility Model Content

[0003] In view of the problems existing in the current LNG loading and unloading truck arm flange quick docking and positioning mechanism, this utility model is proposed.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A quick docking and positioning mechanism for an LNG loading / unloading vehicle arm flange includes a first connecting arm and a second connecting arm, arranged sequentially from left to right. A first flange is fixedly installed on the side of the first connecting arm near the second connecting arm, and a second flange is fixedly installed on the end of the second connecting arm near the first connecting arm. Multiple insert rods are fixedly sleeved in the through hole of the second flange, and the multiple insert rods are inserted into the corresponding through holes of the first flange. A slot is formed at the end of the multiple insert rods away from the first flange and near the first connecting arm. A rotating sleeve is rotatably sleeved on the outer wall of the first connecting arm. A limit ring is fixedly sleeved on the outer wall of the rotating sleeve near the first flange, and the limit ring is engaged with the multiple slots. A clearance groove is formed on the side wall of the limit ring between the multiple insert rods. A limiting mechanism is provided on the rod wall of the first connecting arm to restrict the rotation of the rotating sleeve.

[0006] Preferably, the limiting mechanism includes a fixed ring and a movable ring. The fixed ring is fixedly sleeved on the end of the first connecting arm away from the first flange. The movable ring is slidably sleeved on the outer wall of the rotating sleeve. Limiting holes are provided on both sides of the fixed ring. A limiting rod is fixedly provided on the side of the movable ring near the fixed ring and at a position corresponding to the limiting hole. One end of the limiting rod is inserted into the limiting hole. Fixed blocks are fixedly provided on both sides of the outer wall of the rotating sleeve. A sliding rod is movably sleeved inside the fixed block. One end of the sliding rod is fixedly connected to the movable ring.

[0007] Preferably, a spring is movably sleeved on the wall of the slide rod, one end of the spring is fixedly connected to the movable ring on the side away from the fixed ring, and the other end of the spring is fixedly connected to the fixed block on the side close to the movable ring.

[0008] Preferably, an anti-detachment block is fixedly sleeved at the end of the slide rod away from the movable ring.

[0009] Preferably, the inner walls of the plurality of slots are provided with rubber pads.

[0010] Preferably, all of the aforementioned inserts are welded and fixed to the second flange.

[0011] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0012] 1. This utility model completes the initial connection between the first flange and the second flange by inserting the plug rod into the through hole of the first flange. Then, by rotating the rotating sleeve, the clearance groove of the limiting ring is misaligned with the slot, so that the limiting ring is locked into the slot, making it impossible for the plug rod to be pulled out from the through hole of the first flange, thus completing the stable connection between the first connecting arm and the second connecting arm.

[0013] 2. In this utility model, the movable ring is pushed by the spring force to slide away from the limiting ring, so that the limiting rod is inserted into the limiting hole on the side wall of the fixed ring, so that the movable ring cannot rotate, and thus the rotating sleeve cannot rotate, that is, the limiting ring cannot rotate, thus maintaining the stability of the connection between the first flange and the second flange. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0015] Figure 1 This is a schematic diagram of the structure of a quick docking and positioning mechanism for an LNG loading / unloading vehicle arm flange proposed in this utility model;

[0016] Figure 2 for Figure 1 A schematic diagram of the exploded structure;

[0017] Figure 3 for Figure 1 A magnified schematic diagram of part A in the middle section.

[0018] Explanation of reference numerals in the attached figures:

[0019] 1. First connecting arm; 2. Second connecting arm; 3. First flange; 4. Second flange; 5. Insert rod; 6. Limiting ring; 7. Movable ring; 8. Fixed ring; 9. Limiting rod; 10. Fixed block; 11. Slide rod; 12. Spring; 13. Anti-detachment block; 14. Clearance groove; 15. Slot; 16. Rotating sleeve. Detailed Implementation

[0020] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0021] This utility model discloses a quick docking and positioning mechanism for LNG loading and unloading truck arm flanges.

[0022] Reference Figure 1-3 A quick-connection and positioning mechanism for LNG loading / unloading vehicle arm flanges includes a first connecting arm 1 and a second connecting arm 2, arranged sequentially from left to right. A first flange 3 is fixedly installed on the side of the first connecting arm 1 closest to the second connecting arm 2, and a second flange 4 is fixedly installed on the end of the second connecting arm 2 closest to the first connecting arm 1. Multiple insert rods 5 are fixedly sleeved within the through-hole of the second flange 4, and all insert rods 5 are welded and fixed to the second flange 4 to improve the connection strength between the insert rods 5 and the second flange 4. The multiple insert rods 5 are inserted into the corresponding through-holes of the first flange 3. Each of the multiple insertion rods 5 has a slot 15 at the end away from the first flange 3 and on the side close to the first connecting arm 1. A rotating sleeve 16 is rotatably sleeved on the outer wall of the first connecting arm 1. A limiting ring 6 is fixedly sleeved on the outer wall of the rotating sleeve 16 near the first flange 3. The limiting ring 6 is engaged with the multiple slots 15. Rubber pads are provided on the inner walls of the multiple slots 15 so that the limiting ring 6 can be stably engaged with the slots 15. A clearance groove 14 is provided on the side wall of the limiting ring 6 between the multiple insertion rods 5. A limiting mechanism is provided on the rod wall of the first connecting arm 1 to restrict the rotation of the rotating sleeve 16.

[0023] Reference Figure 1-3 The limiting mechanism includes a fixed ring 8 and a movable ring 7. The fixed ring 8 is fixedly sleeved on the end of the first connecting arm 1 away from the first flange 3. The movable ring 7 is slidably sleeved on the outer wall of the rotating sleeve 16. Limiting holes are opened on both sides of the fixed ring 8. A limiting rod 9 is fixedly installed on the side of the movable ring 7 close to the fixed ring 8 and at the position corresponding to the limiting hole. One end of the limiting rod 9 is inserted into the limiting hole. Fixed blocks 10 are fixedly installed on both sides of the outer wall of the rotating sleeve 16. A sliding rod 11 is movably sleeved inside the fixed block 10. One end of the sliding rod 11 is fixedly connected to the movable ring 7.

[0024] Reference Figure 1-3 A spring 12 is movably sleeved on the wall of the slide rod 11. One end of the spring 12 is fixedly connected to the side of the movable ring 7 away from the fixed ring 8, and the other end of the spring 12 is fixedly connected to the side of the fixed block 10 close to the movable ring 7 to facilitate the reset of the movable ring 7. An anti-disengagement block 13 is fixedly sleeved on the end of the slide rod 11 away from the movable ring 7 to prevent the slide rod 11 from slipping out of the fixed block 10 as much as possible.

[0025] In this utility model, when using the first flange 3 and the second flange 4, the movable ring 7 is first pulled to move away from the fixed ring 8. The movable ring 7 drives the slide rod 11 to slide along the fixed block 10 and stretch the spring 12 until the limiting rod 9 is dislodged from the limiting hole of the fixed ring 8, thus releasing the rotation restriction on the rotating sleeve 16.

[0026] Rotate the rotating sleeve 16 to make the clearance groove 14 on the limiting ring 6 correspond to the position of the insertion rod 5. Then, insert the insertion rod 5 on the second flange 4 into the through hole of the first flange 3 until the first flange 3 and the second flange 4 fit tightly together.

[0027] When the rotating sleeve 16 is rotated in the opposite direction, the limiting ring 6 rotates synchronously with the rotating sleeve 16. When the non-avoiding groove part of the limiting ring 6 rotates to the slot 15 of the insert rod 5, the limiting ring 6 is inserted into the slot 15, thereby achieving axial locking between the insert rod 5 and the first flange 3 and preventing the first flange 3 from separating from the second flange 4.

[0028] When the movable ring 7 is released, the spring 12 returns to its original position and retracts, pulling the movable ring 7 towards the fixed ring 8. The movable ring 7 drives the limit rod 9 to re-insert into the limit hole of the fixed ring 8, restricting the rotation of the rotating sleeve 16 and ensuring that the limit ring 6 is stably engaged in the slot 15.

[0029] The rubber pad on the inner wall of the slot 15 enhances the friction between the limiting ring 6 and the insertion rod 5, preventing loosening after docking; the anti-detachment block 13 prevents the sliding rod 11 from slipping out of the fixing block 10, ensuring the integrity of the limiting mechanism. The entire docking process requires no tool assistance, and the mechanical structure enables rapid positioning and locking, significantly improving the docking efficiency of the LNG loading and unloading truck arm flange and saving labor costs.

[0030] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A LNG loading and unloading vehicle arm flange rapid butt joint positioning mechanism, comprising a first connecting arm (1) and a second connecting arm (2), characterized in that, The first connecting arm (1) and the second connecting arm (2) are arranged sequentially from left to right. A first flange (3) is fixedly provided on the side of the first connecting arm (1) near the second connecting arm (2). A second flange (4) is fixedly provided on the end of the second connecting arm (2) near the first connecting arm (1). A plurality of insert rods (5) are fixedly sleeved in the through hole of the second flange (4). The plurality of insert rods (5) are inserted into the through hole of the corresponding first flange (3). The ends of the plurality of insert rods (5) away from the first flange (3) and located at... A slot (15) is provided on one side near the first connecting arm (1). A rotating sleeve (16) is rotatably sleeved on the outer wall of the first connecting arm (1). A limiting ring (6) is fixedly sleeved on the outer wall of the rotating sleeve (16) near the first flange (3). The limiting ring (6) is engaged with multiple slots (15). A clearance groove (14) is provided on the side wall of the limiting ring (6) and between multiple insert rods (5). A limiting mechanism is provided on the rod wall of the first connecting arm (1) to restrict the rotation of the rotating sleeve (16).

2. The LNG loading arm flange quick docking positioning mechanism according to claim 1, characterized in that, The limiting mechanism includes a fixed ring (8) and a movable ring (7). The fixed ring (8) is fixedly sleeved on the end of the first connecting arm (1) away from the first flange (3). The movable ring (7) is slidably sleeved on the outer wall of the rotating sleeve (16). Limiting holes are opened on both sides of the fixed ring (8). A limiting rod (9) is fixedly installed on the side of the movable ring (7) close to the fixed ring (8) and at the position corresponding to the limiting hole. One end of the limiting rod (9) is inserted into the limiting hole. Fixed blocks (10) are fixedly installed on both sides of the outer wall of the rotating sleeve (16). A sliding rod (11) is movably sleeved inside the fixed block (10). One end of the sliding rod (11) is fixedly connected to the movable ring (7).

3. The LNG loading arm flange quick docking positioning mechanism according to claim 2, characterized in that, The slide bar (11) has a spring (12) movably sleeved on its wall. One end of the spring (12) is fixedly connected to the movable ring (7) on the side away from the fixed ring (8), and the other end of the spring (12) is fixedly connected to the fixed block (10) on the side close to the movable ring (7).

4. The LNG loading arm flange quick docking positioning mechanism of claim 2, wherein, An anti-detachment block (13) is fixedly sleeved at the end of the slide rod (11) away from the movable ring (7).

5. The LNG transfer arm flange quick docking positioning mechanism of claim 1, wherein, The inner walls of the multiple slots (15) are provided with rubber pads.

6. The LNG loading / unloading truck arm flange quick docking and positioning mechanism according to claim 1, characterized in that, All of the aforementioned inserts (5) are welded and fixed to the second flange (4).

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