A tubing swivel

Abstract

The utility model discloses a kind of oil pipe quick coupling disconnecting devices, including the hydraulic oil pipe being installed on double ball valve emergency disconnecting device, hydraulic oil pipe includes first oil pipe and the second oil pipe of butt joint first oil pipe;Still include joint hoop mechanism;The joint hoop mechanism includes the joint structure of butt joint first oil pipe and second oil pipe, further include the hoop structure that can lock and unlock joint structure, hoop structure includes the inner hoop structure of clamping joint structure, through inner hoop structure, joint structure can rotate;And the outer hoop structure of locking inner hoop structure;And the outer sleeve ring of limiting outer hoop structure;Still include the pull rope structure of separation hoop structure.The above structure realizes emergency separation upper and lower ball valve, realizes joint structure protection in the process of oil pipe, guarantees the safety of hydraulic oil circuit system work.

Description

Technical Field

[0001] This utility model belongs to the technical field of quick-connect coupling disconnection devices for oil pipes, and particularly relates to a quick-connect coupling disconnection device for oil pipes. Background Technology

[0002] During dock loading and unloading, the ship's cargo bins are loaded and unloaded via a conveyor arm. However, in special circumstances, due to unstable ship anchoring, the conveyor arm is easily broken by the moving ship (fluid propelling the ship). Therefore, in order to separate the conveyor arm from the ship in an emergency, an emergency disconnection device consisting of two ball valves is often installed on the conveyor arm (installed at the end of the conveyor arm). That is, when the ball valve clamps connecting the two ball valves are separated, the quick-connect coupling disconnection device will simultaneously separate the upper and lower oil pipes.

[0003] Meanwhile, during loading and unloading, hydraulic cylinders are needed to tighten the flanges on the pipeline (at the ship's end). The oil pipes connecting the hydraulic cylinders are often suspended from the conveyor arm. Specifically, when the conveyor arm separates, the hydraulic cylinder oil pipes also need to separate. Therefore, the oil pipes are connected by a plug-in method, consisting of a separable upper oil pipe and a lower oil pipe. Furthermore, because they separate synchronously with the two ball valves, the upper and lower oil pipes are respectively suspended from the two ball valves (in the suspended state, this prevents the oil pipes from swaying freely, such as under the influence of airflow, increasing operational safety), and they detach in an emergency along with the ball valves.

[0004] Currently, the connectors used for connecting upper and lower oil pipes are the commonly used open-close hydraulic quick couplings in existing technology. Their structure mainly consists of a male connector, a female connector, and a spring locking mechanism on the female connector. The spring locking mechanism is axial and opens with external force, then returns to its original position, achieving a tight connection between the male and female connectors. Simultaneously, the male and female connectors themselves also have internal spring sealing mechanisms. When the male and female connectors are connected to the oil pipe, the spring mechanism pushes against each other, connecting the pipeline; when disconnected, the spring returns to its original position, achieving a self-sealing effect.

[0005] During the docking process, pressing the spring locking mechanism on the female end of the openable hydraulic quick connector allows the male end to be inserted. Releasing the spring locking mechanism allows it to reset under the action of the compressed spring, thus locking the male end and achieving self-locking.

[0006] However, in actual operation, it was found that during the disassembly of the upper and lower ball valves, the ball valves not only have an axial (vertical) separation posture, but also a radial separation posture (i.e., swinging and vertical pulling). This causes the upper oil pipe (which is attached to the upper ball valve) to be pulled to the female end of the openable hydraulic quick connector. Under the pulling action, the risk of the upper oil pipe detaching from the female end is increased, and the risk of hydraulic oil leakage occurs.

[0007] Even more seriously, the hydraulic quick couplings become less airtight when the oil pipes are pulled, severely affecting the safety of the hydraulic circuit system.

[0008] The reason for the above-mentioned technical defects is that the opening and closing hydraulic quick coupling of the connecting oil pipe cannot be matched with the disassembly and movement of the upper and lower ball valves to reduce the pulling force of the oil pipe. Utility Model Content

[0009] Based on the above background, the purpose of this utility model is to provide a quick disconnect device for oil pipe couplings.

[0010] To achieve the above objectives, the present invention adopts the following technical solution: A quick-connect coupling device for hydraulic pipes includes a hydraulic pipe installed on a double ball valve emergency disconnect device, the hydraulic pipe including a first pipe and a second pipe connected to the first pipe; it also includes a joint clamping mechanism. The joint clamp mechanism includes a connector structure for connecting the first oil pipe and the second oil pipe, and a clamp structure that can lock and unlock the connector structure. The clamp structure includes an inner clamp structure for locking the connector structure and an outer clamp structure for locking the inner clamp structure. The connector structure can be rotated through the inner clamp structure. And the outer ring of the limiting outer clamp structure; The inner clamp structure is capable of rotating relative to the outer clamp structure; It also includes a rope structure with a separate clamping structure.

[0011] Preferably, the dual-ball valve emergency disconnection device includes an upper ball valve and a lower ball valve, and the upper ball valve and the lower ball valve are detachably connected by a ball valve clamp; The first oil pipe is attached to the upper ball valve, and the second oil pipe is fixed to the lower ball valve.

[0012] Preferably, the connector structure includes an openable / closeable hydraulic quick connector; A tee pipe is installed on the first oil pipe, and the tee pipe is inserted into the female end of the openable and closable hydraulic quick coupling. The second oil pipe is plugged into the male end of the openable / closeable hydraulic quick coupling.

[0013] Preferably, the inner clamp structure includes a pair of inner clamps that are separated from each other, and the outer side wall of the inner clamp is a curved structure; The outer clamp structure includes a pair of separate outer clamps. When the inner clamps are combined, they are fitted onto the outer clamps. The inner clamps can rotate relative to the outer clamps through the curved structure. After the outer clamp is assembled, it is fitted inside the outer ring.

[0014] Preferably, the inner sidewall of the inner clamp is integrally formed with a boss; When the inner clamps are closed, they are tightly gripped on the hydraulic quick coupling, and the boss is limited on the female head groove of the openable and closable hydraulic quick coupling.

[0015] Preferably, the pull rope structure includes pull ropes that are respectively hung on both sides of the outer ring, and the upper end of the pull rope is fixedly connected to an upper support seat, which is fixedly connected to the upper ball valve.

[0016] Preferably, the outer side wall of the outer ring is fitted with a hanging ear, and the pull rope is attached to the hanging ear.

[0017] Preferably, the lug is fastened to the outer wall of the outer ring by bolts.

[0018] Preferably, a lower support seat is fixedly connected to the lower ball valve, and the clamp structure is located on top of the lower support seat; The joint of the second oil pipe passes through the lower support seat.

[0019] This utility model has the following beneficial effects: 1. This utility model improves a locking structure that increases the degree of freedom of the opening and closing hydraulic quick connector. That is, it locks the opening and closing hydraulic quick connector. At the same time, during the disassembly of the upper and lower ball valves, when the upper oil pipe is pulled down, the opening and closing hydraulic quick connector can cooperate with the pulling movement of the upper oil pipe to reduce the damage to the opening and closing hydraulic quick connector caused by the misalignment force, thereby achieving a protective function.

[0020] 2. When the inner clamp is folded and fitted onto the outer clamp, its curved structure allows it to rotate relative to the outer clamp. In this state, the opening / closing hydraulic quick-connect coupling, which is locked in the inner clamp position, rotates along with the inner clamp to align with the direction of the pulling force. This method protects the opening / closing hydraulic quick-connect coupling and prevents damage to the oil pipe due to pulling. This ingenious design provides the opening / closing hydraulic quick-connect coupling with a degree of freedom, allowing it to continuously adjust its posture through rotation during emergency disengagement of the ball valve, preventing misalignment and pulling forces between it and the oil pipe, thus avoiding severe damage.

[0021] 3. To achieve rapid separation of the oil pipe, the operator (with the bolts loosened beforehand) pulls the rope. As the rope is pulled, the outer ring is pulled upwards. Because the opening and closing hydraulic quick connector is locked by the inner clamp (the inner and outer clamps do not move), the outer ring, which acts as a limit, quickly disengages from the outer clamp. Once the outer clamp disengages, the outer and inner clamps of the separation structure quickly release the opening and closing hydraulic quick connector. At this time, the operator can quickly press the female head on the opening and closing hydraulic quick connector to separate the first oil pipe from the opening and closing hydraulic quick connector, completing the oil pipe separation. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the overall structure in an embodiment of the present utility model; Figure 2 This is a schematic diagram of the joint clamp mechanism in an embodiment of the present invention; Figure 3 This is an exploded view of the clamp structure in an embodiment of this utility model; Figure 4 This is a schematic diagram of the structure of the clamp structure connecting the opening and closing hydraulic quick connector in the embodiment of this utility model; Figure 5 This is a schematic diagram of the distributed structure of the clamp structure plug-in opening and closing hydraulic quick connector in the embodiment of this utility model.

[0024] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0025] 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.

[0026] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0027] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0028] Example 1 like Figure 1-5 As shown, a quick-connect coupling disconnect device for oil pipes includes an oil pipe installed on a double-ball valve emergency disconnect device. The double-ball valve emergency disconnect device is installed on the conveyor arm (during unloading, the conveyor arm on the dock connects to the ship's hopper to suck up material from the hopper) during actual operation for emergency separation of the conveyor arm. Similar in structure to existing quick-connect coupling disconnect devices for oil pipes, the double-ball valve emergency disconnect device includes an upper ball valve 1 and a lower ball valve 2, which are detachably connected by a ball valve clamp 6. When the ball valve clamp 6 is released, the upper ball valve 1 urgently separates from the lower ball valve 2, achieving emergency disconnection of the conveyor arm.

[0029] Meanwhile, during loading and unloading, the hydraulic cylinder (which presses against the flange connecting the pipeline to maintain stability during loading and unloading) pumps oil into and out of the cylinder through hydraulic oil pipes. In actual operation, the hydraulic cylinder's oil pipes (hose) also need to be disconnected when the upper ball valve 1 and lower ball valve 2 are urgently disengaged.

[0030] Specifically, the hydraulic oil pipes include a first oil pipe 31 and a second oil pipe 32 that connects to the first oil pipe 31 (a total of two hydraulic oil pipes, namely the inlet hydraulic oil pipe and the outlet hydraulic oil pipe), and also include a joint clamping mechanism.

[0031] The joint clamp mechanism includes a connector structure for connecting the first oil pipe 31 and the second oil pipe 32, which is the same as the existing connector method, using an openable / closeable hydraulic quick connector 33. The openable / closeable hydraulic quick connector 33 is a prior art disclosed butt joint for quickly connecting two pipes. Its main structure includes a connector body, a female connector 331 at the inlet position, and a male connector 332 at the outlet position.

[0032] Similar to the existing method of connecting pipes with the open-close hydraulic quick coupling 33, during the connection process, the female head 331 is elastically pressed and connected to the first oil pipe 31 (the tee pipe 311 on the first oil pipe 31), and the male head 332 is connected to the interface end of the second oil pipe 32 (the specific insertion method is: the tee pipe 311 is assembled and connected on the first oil pipe 31, and the tee pipe 311 is inserted into the female head 331 of the open-close hydraulic quick coupling 33; the second oil pipe 32 is inserted into the male head 332 of the open-close hydraulic quick coupling 33).

[0033] Loosen the female connector 331, and the self-locking characteristic of the female connector 331 will achieve a seal after docking.

[0034] Conversely, pressing the female head 331 again unlocks the circuit while simultaneously disconnecting the oil circuit using the sealing effect of the female head 331 and the male head 332.

[0035] During the disassembly of the upper ball valve 1 and the lower ball valve 2, the main operation involves the emergency disconnection of the upper ball valve 1 from the lower ball valve 2. This emergency disconnection of the upper ball valve 1 involves both axial and radial actions (shaking and vertical pulling). Therefore, under the pulling force of the first oil pipe 31, the female connector 331 of the opening / closing hydraulic quick connector 33 connected to the first oil pipe 31 is easily pulled, which can easily damage the structure of the opening / closing hydraulic quick connector 33, leading to issues such as breakage, deformation, and reduced sealing of the female connector 331. Furthermore, the pulling force on the male connector 332, which is pulled away from the female connector 331, can also easily cause damage and deformation to the male connector 332 (and prevent the fixing plate A, which is fixedly installed on the lower support seat 21 and snaps onto the male connector 332 of the opening / closing hydraulic quick connector 33, from being pulled and deformed).

[0036] The shape of the aforementioned openable hydraulic quick connector 33 reduces the sealing performance. In severe cases, due to the high pressure of the hydraulic oil, the sealing performance is reduced, which can easily lead to bursting and safety accidents.

[0037] To solve the above-mentioned technical problems, this utility model improves the locking structure that can increase the degree of freedom of the opening and closing hydraulic quick connector 33. That is, it can lock the opening and closing hydraulic quick connector 33. At the same time, during the disassembly of the upper and lower ball valves 2, when the oil pipe is pulled down, the opening and closing hydraulic quick connector 33 can cooperate with the pulling movement of the oil pipe to reduce the damage of the offset pulling force to the opening and closing hydraulic quick connector 33, thereby achieving a protective function.

[0038] Example 2 like Figure 1-5As shown, this embodiment, based on the structure of embodiment 1, specifically discloses the protective structure for the openable / closeable hydraulic quick connector 33. Specifically, it also includes a clamping structure 5 that can lock and unlock the connector structure. The clamping structure 5 includes an inner clamping structure that clamps the connector structure (i.e., the openable / closeable hydraulic quick connector 33), and an outer clamping structure that locks the inner clamping structure. Through the inner clamping structure, the connector structure can rotate, and the outer ring of the outer clamping structure is limited. Since the openable / closeable hydraulic quick connector 33 (i.e., the connector structure) is locked in the inner clamping structure, the pulling and rotating action of the first oil pipe 31, in conjunction with the inner clamping structure, can reduce tensile damage.

[0039] Specifically, a lower support seat 21 is fixedly connected to the lower ball valve 2, and the clamping structure 5 is located at the top of the lower support seat 21; the joint of the second oil pipe 32 passes through the lower support seat 21 and is connected to the male end 332 of the openable hydraulic quick connector 33 (a through hole is opened on the lower support seat 21). Therefore, the clamping structure 5 is also located at the top of the lower support seat 21.

[0040] The specific structure of the inner clamp structure is as follows: the clamp structure 5 includes a pair of separate inner clamps 53, the outer side wall of the inner clamp 53 is a curved structure; when the inner clamps 53 are combined, they clamp the hydraulic quick connector and keep the hydraulic quick connector from detaching from the inner clamps 53.

[0041] Specifically, the inner sidewall of the inner clamp 53 is integrally formed with a boss 531 that fits in place; when the inner clamp 53 is closed and clamps onto the openable / closeable hydraulic quick connector 33, the boss 531 is limited to the female head groove of the openable / closeable hydraulic quick connector 33.

[0042] The specific structure of the outer clamp structure is as follows: The outer clamp structure includes a pair of separate outer clamps 52. When the inner clamps 53 are combined, they are fitted onto the outer clamps 52. The inner clamps 53 can rotate relative to the outer clamps 52 due to their curved structure (that is, because the outer side wall of the inner clamps 53 is curved, it can rotate relative to the outer clamps 52 in the combined state). Thus, when the first oil pipe 31 is pulled to the open-close hydraulic quick connector 33, the open-close hydraulic quick connector 33 in the clamped state rotates with the inner clamps 53 to match the direction of the pulling force. In this way, the open-close hydraulic quick connector 33 is protected and the oil pipe is prevented from being pulled and damaged.

[0043] Meanwhile, the outer clamp 52, after being combined, is fitted inside the outer ring 51. The outer ring 51 serves to limit the outer clamp 52 and prevent it from separating, while the outer clamp 52, which is limited by the outer ring 51 in its combined state, also prevents the inner clamp 53 from separating.

[0044] The inner clamp 53 and outer clamp 52 are designed as separate structures (the specific reason is that the inner clamp 53 has an outer spherical surface and the outer clamp 52 has an inner spherical surface, and the axial direction is an inverted structure, so it must be designed as a separate structure for installation), which facilitates subsequent oil pipe separation. Specifically, during the oil pipe separation process, it is necessary to expose the openable and closable hydraulic quick connector 33, and this separate clamp structure 5 further increases the convenience of exposing the openable and closable hydraulic quick connector 33, further improves the oil pipe separation efficiency, reduces the oil pipe separation time, and facilitates emergency separation work.

[0045] Example 3 like Figure 1-5 As shown, based on the structure of Embodiment 2, in order to achieve rapid exposure of the opening and closing hydraulic quick connector 33, this embodiment also includes a pull rope structure 4 of the separation clamp structure 5.

[0046] Specifically, the pull rope structure 4 includes pull ropes 42 respectively attached to both sides of the outer ring 51. The upper end of each pull rope 42 is fixedly connected to an upper support seat 41, which is fixedly connected to the upper ball valve 1. A pair of lugs 43 are fastened to the outer walls of the corresponding outer ring 51, and the pull ropes 42 are attached to the lugs 43. The lugs 43 are fastened to the outer walls of the outer ring 51 by bolts 431.

[0047] When it is necessary to quickly separate the oil pipe, the operator only needs to pull vertically upward by hand. Since the opening and closing hydraulic quick connector 33 is held tightly by the inner clamp 53, the inner clamp 53 will not be displaced axially relative to 51. Therefore, the spring locking mechanism on the female connector 331 can compress the spring in the same way, the self-locking mechanism opens, and the male connector 332 can be separated from the female connector 331, thus completing the separation of the oil pipe.

[0048] When connecting and installing the first and second oil pipes, the operator only needs to lift the clamp structure 5, which will drive the spring locking mechanism on the female head 331 through the boss 531. When the openable and closed hydraulic quick connector 33 moves to a certain position, the male head 332 can be installed. Then, the female head 331 is released and reset downward under the action of the spring, completing the self-locking.

[0049] Of course, the above description is not intended to limit the present utility model, and the present utility model is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. A quick-connect coupling release device for hydraulic hoses, comprising a hydraulic hose mounted on a double-ball valve emergency release device, the hydraulic hose including a first hose and a second hose connected to the first hose; characterized in that, It also includes joint clamping mechanisms; The joint clamp mechanism includes a connector structure for connecting the first oil pipe and the second oil pipe, and a clamp structure for locking and unlocking the connector structure. The clamp structure includes an inner clamp structure for locking the connector structure, through which the connector structure can rotate. And the outer clamp structure that locks the inner clamp structure; It also includes the outer ring of the limiting outer clamp structure; and the pull rope structure of the separating clamp structure.

2. The quick-connect coupling disconnection device for oil pipes according to claim 1, characterized in that, The dual-ball valve emergency disconnection device includes an upper ball valve and a lower ball valve, and the upper ball valve and the lower ball valve are detachably connected by a ball valve clamp. The first oil pipe is attached to the upper ball valve, and the second oil pipe is fixed to the lower ball valve.

3. The quick-connect coupling disconnection device for oil pipes according to claim 1, characterized in that, The connector structure includes an openable / closeable hydraulic quick connector; The first oil pipe is equipped with a tee pipe, which is inserted into the female end of the openable and closable hydraulic quick coupling. The second oil pipe is plugged into the male end of the openable / closeable hydraulic quick coupling.

4. The quick-connect coupling disconnection device for oil pipes according to claim 3, characterized in that, The inner clamp structure includes a pair of inner clamps that are separated from each other, and the outer side wall of the inner clamp is a curved structure; The outer clamp structure includes a pair of separate outer clamps. When the inner clamps are combined, they are fitted onto the outer clamps. The inner clamps can rotate relative to the outer clamps through the curved structure. After the outer clamp is assembled, it is fitted inside the outer ring.

5. The quick-connect coupling disconnection device for oil pipes according to claim 4, characterized in that, The inner sidewall of the inner clamp is integrally formed with a boss; When the inner clamps are closed, they are tightly gripped on the hydraulic quick coupling, and the boss is limited on the female head groove of the openable and closable hydraulic quick coupling.

6. The quick-connect coupling disconnection device for oil pipes according to claim 5, characterized in that, The pull rope structure includes pull ropes that are respectively hung on both sides of the outer ring, and the upper end of the pull rope is fixedly connected to an upper support seat, which is fixedly connected to the upper ball valve.

7. The quick-connect coupling disconnection device for oil pipes according to claim 6, characterized in that, The outer side wall of the outer ring is fitted with a hanging ear, and the pull rope is attached to the hanging ear.

8. The quick-connect coupling disconnect device for oil pipes according to claim 7, characterized in that, The lugs are fastened to the outer wall of the outer ring by bolts.

9. The quick-connect coupling disconnection device for oil pipes according to claim 2, characterized in that, A lower support seat is fixedly connected to the lower ball valve, and the clamp structure is located on top of the lower support seat; The joint of the second oil pipe passes through the lower support seat.

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