Connecting unloading crane pipe structure

Abstract

The utility model relates to the technical field of quick -connecting structure of loading arm, in particular to connecting unloading loading arm structure, it can disposablely turn to male joint place with many groups of extension bar, bring the connection of extension bar and male joint convenient, including female joint and male joint, and the female joint and male joint can be butted locking between, be provided with reinforcing assembly between female joint and male joint, the reinforcing assembly includes the collar, the collar slip -on is installed on the female joint, and the fixed connection of annular array on the outer wall of collar has four groups of double -shaft connecting head, and two groups of transmission rods are rotatably connected on double -shaft connecting head front -back symmetry, and the left end of reset spring is fixedly connected with four groups of support right -end, and the boss of male joint shell is equipped with the thread hole matched with the internal hexagon butt joint bolt, and the butt joint column is connected on the male joint shell through the cooperation of internal hexagon butt joint bolt and thread hole.

Description

Technical Field

[0001] This utility model relates to the technical field of quick-connect structure for loading arms, and in particular to the structure for connecting unloading loading arms. Background Technology

[0002] Unloading arms are specialized equipment used in the petrochemical industry for loading and unloading fluids. They are connected to rigid pipes and elbows via rotary joints to facilitate the transfer of liquid media between trains, tank cars, and storage and transportation pipelines on trestles. They replace the old-fashioned hose connections and feature high safety, flexibility, and long service life. The use of unloading arms can replace traditional manual handling, reduce the workload of workers, and improve work efficiency and the working environment.

[0003] In the petrochemical industry, fluids are generally transported by tank trucks. During loading and unloading, quick-connect structures are needed to quickly connect the loading arms to the tank truck for the transmission of the medium. In the prior art, the utility model patent with patent publication number CN215208441U discloses a quick-connect valve anti-detachment device for liquid ammonia unloading loading arms, which relates to the field of quick-connect valve technology. This quick-connect structure uses an external locking structure to further fix the female and male connectors. Even if the locking device built into the quick-connect valve accidentally falls off, it will not cause the female and male connectors to separate, ensuring safety. The bolt connection between the hinged extension rod and the male connector makes this external locking method more reliable and convenient, and easy to disassemble.

[0004] The quick-connect valve anti-detachment device for liquid ammonia unloading arms in the aforementioned patent, although capable of quickly connecting the loading arm to the tanker, still has certain drawbacks in actual operation. When connecting the extension rod to the male connector with bolts, the operator needs to rotate multiple sets of extension rods one by one so that one end of the extension rod touches the male connector before connecting them with bolts. It is not possible to rotate multiple sets of extension rods to the male connector at once, which makes the connection between the extension rod and the male connector inconvenient. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a connecting unloading arm structure that can rotate multiple sets of extension rods to the male connector at one time, bringing convenience to the connection between the extension rods and the male connector.

[0006] Technical solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a connecting unloading arm structure, including a female connector and a male connector, which can be locked together. A reinforcing component is provided between the female and male connectors. The reinforcing component includes a collar, which is slidably fitted onto the female connector. Four sets of dual-axis connectors are fixedly connected in a ring array on the outer wall of the collar. Two sets of transmission rods are symmetrically rotatably connected to the dual-axis connectors. Four sets of supports are fixedly connected in a ring array on the outer shell of the female connector. Extension rods are rotatably connected to the supports, with the front and rear ends of the extension rods close to the supports. Each part is fixedly connected to a connecting shaft. The end of the transmission rod away from the dual-shaft connector is rotatably mounted on the connecting shaft. The end of the extension rod away from the support is integrally vertically connected to a docking post. The docking post has a through bolt hole, and an internal hexagonal head bolt is inserted into the bolt hole. A return spring is mounted on the female connector housing. The right end of the return spring is fixedly connected to the left end of the collar. The left end of the return spring is fixedly connected to the right end of the four sets of supports. The male connector housing has a threaded hole on the boss that mates with the internal hexagonal head bolt. The docking post is connected to the male connector housing through the mating of the internal hexagonal head bolt and the threaded hole.

[0008] Preferably, the support has a connecting groove at the end away from the female connector, and shaft holes are provided on both sides of the support that communicate with the connecting groove. Shaft heads are fixedly connected to the front and rear ends of the extension rod on the side away from the docking post. The left end of the extension rod is rotatably connected to the connecting groove through the cooperation of the shaft head and the shaft hole, and the front and rear ends of the extension rod are aligned with the front and rear ends of the connecting groove.

[0009] Preferably, each of the four sets of internal hexagonal head bolts is fitted with a spring washer.

[0010] Preferably, the male connector housing has a facet at the location of the threaded hole on the boss.

[0011] Preferably, the bolt holes on the docking column are countersunk holes.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: In use, by pushing the collar to the left, multiple sets of extension rods can be unfolded at once, the return spring is compressed, and after the male and female connectors are locked together, the collar is released, allowing the collar to slide to the right under the thrust of the return spring. This allows multiple sets of extension rods to be retracted at once, so that the mating post abuts against the protrusion on the male connector shell, aligning the bolt hole with the threaded hole. Then, the internal hexagonal bolt is inserted into the bolt hole and screwed into the threaded hole, thus completing the connection between the extension rod and the male connector. This strengthens the locking of the female and male connectors. Therefore, when connecting the extension rods, only the collar needs to be slid to rotate multiple sets of extension rods at once, allowing multiple sets of extension rods to be rotated to the male connector at once, eliminating the need to rotate each set of extension rods individually, thus facilitating the connection between the extension rod and the male connector. Attached Figure Description

[0013] Figure 1 This is an isometric exploded view of the present invention;

[0014] Figure 2 This is a front view structural diagram of the present invention;

[0015] Figure 3 This is a partial isometric structural diagram of the reinforcing component in this utility model;

[0016] Figure 4 This is an isometric structural diagram of the support in this utility model;

[0017] The following are labels in the attached diagram: 1. Female connector; 2. Male connector; 3. Reinforcing component; 4. Collar; 5. Double shaft connector; 6. Drive rod; 7. Support; 8. Extension rod; 9. Connecting shaft; 10. Connecting post; 11. Socket head bolt; 12. Return spring; 13. Threaded hole; 14. Connecting groove; 15. Shaft hole; 16. Shaft end; 17. Spring washer; 18. Cross-section. Detailed Implementation

[0018] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0019] Example 1

[0020] Please see Figures 1-4The present invention relates to a connecting unloading arm structure, comprising a female connector 1 and a male connector 2, which are lockable together. A reinforcing component 3 is provided between the female connector 1 and the male connector 2. The reinforcing component 3 includes a collar 4, which is slidably fitted onto the female connector 1. Four sets of dual-axis connectors 5 are fixedly connected in a ring array on the outer wall of the collar 4. Two sets of transmission rods 6 are symmetrically rotatably connected to the dual-axis connectors 5. Four sets of supports 7 are fixedly connected in a ring array on the outer shell of the female connector 1. Extension rods 8 are rotatably connected to the supports 7. The extension rod 8 has connecting shafts 9 fixedly connected to its front and rear ends near the support 7. The end of the transmission rod 6 away from the double-shaft connector 5 is rotatably mounted on the connecting shaft 9. The end of the extension rod 8 away from the support 7 is integrally vertically connected to a docking post 10. The docking post 10 has a through bolt hole, and an internal hexagonal head bolt 11 is inserted into the bolt hole. A return spring 12 is mounted on the outer shell of the female connector 1. The right end of the return spring 12 is fixedly connected to the left end of the collar 4. The left end of the return spring 12 is fixedly connected to the right end of the four sets of supports 7. The male connector 2 has a boss on its outer shell. The male connector 10 is provided with a threaded hole 13 that mates with the internal hexagonal head bolt 11. The male connector 10 is connected to the outer shell of the male connector 2 through the engagement of the internal hexagonal head bolt 11 and the threaded hole 13. In use, by pushing the collar 4 to the left, multiple sets of extension rods 8 can be extended at once, and the return spring 12 is compressed. After the male connector 2 and female connector 1 are engaged and locked, the collar 4 is released, and the collar 4 slides to the right under the pushing force of the return spring 12. This allows multiple sets of extension rods 8 to be retracted at once, so that the male connector 10 abuts against the convex part of the outer shell of the male connector 2. On the platform, align the bolt hole with the threaded hole 13, then insert the internal hex bolt 11 into the bolt hole and screw it into the threaded hole 13. This completes the connection between the extension rod 8 and the male connector 2, reinforcing the locking of the female connector 1 and the male connector 2. Thus, when connecting the extension rod 8, simply slide the operating collar 4 to rotate multiple sets of extension rods 8 at once, allowing multiple sets of extension rods 8 to be rotated to the male connector at once, eliminating the need to rotate multiple sets of extension rods 8 one by one, thus facilitating the connection between the extension rod and the male connector.

[0021] Example 2

[0022] Please see Figures 1-4The present invention relates to a connecting unloading arm structure, comprising a female connector 1, a male connector 2, and a collar 4. The female connector 1 and the male connector 2 are lockable together. The collar 4 is slidably fitted onto the female connector 1. Four sets of dual-axis connectors 5 are fixedly connected in a ring array on the outer wall of the collar 4. Two sets of transmission rods 6 are symmetrically rotatably connected to the dual-axis connectors 5. Four sets of supports 7 are fixedly connected in a ring array on the outer shell of the female connector 1. Extension rods 8 are rotatably connected to the supports 7. The front and rear ends of the extension rods 8 are fixedly connected at positions close to the supports 7. There is a connecting shaft 9. The end of the transmission rod 6 away from the double-shaft connector 5 is rotatably mounted on the connecting shaft 9. The end of the extension rod 8 away from the support 7 is integrally vertically connected to the docking post 10. The docking post 10 has a through bolt hole, and an internal hexagonal head bolt 11 is inserted into the bolt hole. The female connector 1 has a return spring 12 mounted on its outer shell. The right end of the return spring 12 is fixedly connected to the left end of the collar 4. The left end of the return spring 12 is fixedly connected to the right end of the four sets of supports 7. The male connector 2 has a boss on its outer shell that matches the internal hexagonal head bolt 11. The threaded hole 13 is fitted with a mating post 10, which is connected to the male connector 2 housing via an internal hexagonal head bolt 11. In use, by pushing the collar 4 to the left, multiple extension rods 8 can be extended at once, compressing the return spring 12. After the male connector 2 and female connector 1 are locked together, the collar 4 is released, allowing it to slide to the right under the force of the return spring 12. This allows multiple extension rods 8 to be retracted at once, causing the mating post 10 to abut against the boss on the male connector 2 housing, aligning the bolt hole with the female connector 2 housing. Align the threaded hole 13, then insert the internal hexagonal butt bolt 11 into the bolt hole and screw it into the threaded hole 13. This completes the connection between the extension rod 8 and the male connector 2, reinforcing the locking of the female connector 1 and the male connector 2. Thus, when connecting the extension rod 8, only the sliding operation collar 4 needs to be slid to rotate multiple sets of extension rods 8 at once, allowing multiple sets of extension rods 8 to be rotated to the male connector at once, eliminating the need to rotate multiple sets of extension rods 8 one by one, thus bringing convenience to the connection between the extension rod and the male connector.

[0023] The support 7 has a connecting groove 14 at the end away from the female connector 1. Both sides of the support 7 have shaft holes 15 communicating with the connecting groove 14. The front and rear ends of the extension rod 8 are fixedly connected to the side away from the docking post 10 with shaft heads 16. The left end of the extension rod 8 is rotatably connected to the connecting groove 14 through the cooperation of the shaft head 16 and the shaft hole 15, and the front and rear ends of the extension rod 8 are aligned with the front and rear ends of the connecting groove 14. During the rotation of the extension rod 8, the connecting groove 14 can axially limit the extension rod 8 to prevent the extension rod 8 from shaking. When the extension rod 8 is rotated to the horizontal, the end of the extension rod 8 facing the collar 4 abuts against the bottom of the connecting groove 14, so that the extension rod 8 remains horizontal.

[0024] All four sets of internal hexagonal head bolts 11 are fitted with spring washers 17; by setting the spring washers 17, the internal hexagonal head bolts 11 are less likely to loosen after being tightened, thus increasing the firmness of the connection between the extension rod 8 and the male connector 2.

[0025] The male connector 2 has a facet 18 on the boss at the location of the threaded hole 13. By setting the facet 18, when the mating post 10 abuts against the boss on the male connector 2, the inner end of the mating post 10 contacts the surface of the boss more closely.

[0026] The bolt holes on the connecting post 10 are countersunk holes; by setting the bolt holes as countersunk holes, the head of the internal hexagonal bolt 11 can be sunk into the countersunk hole, keeping the surface of the extension rod 8 flat and making the installation more aesthetically pleasing.

[0027] The working principle of this utility model's connecting loading arm structure is as follows: Initially, the return spring 12 is compressed, causing the collar 4 to abut against the protrusion on the right side of the female connector 1's outer shell. At this time, the extension rod 8 is horizontal and rests against the bottom of the connecting groove 14. By pushing the collar 4 to slide to the left on the female connector 1's outer shell, the return spring 12 is further compressed. The collar 4, through the transmission cooperation between the double-shaft connector 5, the transmission rod 6, and the connecting shaft 9, pushes the extension rod 8 to rotate outward, causing the extension rod 8 to unfold. Then, the male connector 2 and the female connector 1 are aligned and locked. After locking, the collar 4 is released, allowing it to slide to the right under the pushing force of the return spring 12, thereby... When the extension rod 8 returns to a horizontal position, the inner end of the docking post 10 abuts against the protrusion of the male connector 2 and contacts the cut surface 18. The bolt hole on the docking post 10 is aligned with the threaded hole 13. Then, the internal hexagonal head bolt 11 is inserted into the bolt hole and screwed into the threaded hole 13, thus completing the connection between the extension rod 8 and the male connector 2 and reinforcing the locking of the female connector 1 and the male connector 2. It should be noted that the female connector 1 and the male connector 2 in this application are both prior art that have been disclosed. The specific structure and principle have been described in detail in the patent publication number CN215208441U, "Anti-detachment device for quick-connect valve of liquid ammonia unloading arm". Therefore, it will not be described in detail here.

[0028] The connection and unloading arm structure of this utility model can be installed, connected or set in a common mechanical way, and can be implemented as long as it can achieve its beneficial effect.

[0029] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A connecting unloading arm structure, comprising a female connector (1) and a male connector (2), wherein the female connector (1) and the male connector (2) are lockable together, characterized in that, A reinforcing component (3) is provided between the female connector (1) and the male connector (2) to reinforce the locking between the female connector (1) and the male connector (2).

2. The connecting unloading arm structure as described in claim 1, characterized in that, The reinforcing component (3) includes a collar (4), which is slidably fitted onto the female connector (1). Four sets of dual-axis connectors (5) are fixedly connected in a ring array on the outer wall of the collar (4). Two sets of transmission rods (6) are symmetrically rotatably connected to the dual-axis connectors (5). Four sets of supports (7) are fixedly connected in a ring array on the outer shell of the female connector (1). Extension rods (8) are rotatably connected to the supports (7). Connecting shafts (9) are fixedly connected to the front and rear ends of the extension rods (8) near the supports (7). The end of the transmission rod (6) furthest from the dual-axis connector (5) is rotatably fitted onto the connecting shaft (9). The end of the extension rod (8) furthest from the dual-axis connector (5) is rotatably fitted onto the connecting shaft (9). One end of the support (7) is vertically connected to a docking post (10), and a bolt hole is provided through the docking post (10). An internal hexagonal head bolt (11) is inserted into the bolt hole. A return spring (12) is fitted on the outer shell of the female connector (1). The right end of the return spring (12) is fixedly connected to the left end of the collar (4). The left end of the return spring (12) is fixedly connected to the right end of the four sets of supports (7). The boss of the male connector (2) has a threaded hole (13) that mates with the internal hexagonal head bolt (11). The docking post (10) is connected to the outer shell of the male connector (2) through the mating of the internal hexagonal head bolt (11) and the threaded hole (13).

3. The connecting unloading arm structure as described in claim 2, characterized in that, The support (7) has a connecting groove (14) at the end away from the female connector (1). Both sides of the support (7) have shaft holes (15) that communicate with the connecting groove (14). The front and rear ends of the extension rod (8) are fixedly connected to the shaft head (16) on the side away from the docking post (10). The left end of the extension rod (8) is rotatably connected to the connecting groove (14) through the cooperation of the shaft head (16) and the shaft hole (15). The front and rear ends of the extension rod (8) are aligned with the front and rear ends of the connecting groove (14).

4. The connecting unloading arm structure as described in claim 3, characterized in that, Spring washers (17) are fitted on all four sets of internal hexagonal head bolts (11).

5. The connecting unloading arm structure as described in claim 4, characterized in that, The male connector (2) has a facet (18) on the boss at the location of the threaded hole (13).

6. The connecting unloading arm structure as described in claim 5, characterized in that, The bolt holes on the docking column (10) are countersunk holes.

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