A quick connector for loading and unloading arm

Abstract

The present invention relates to the technical field of fluid conveying joints, and specifically to a quick joint for a loading and unloading arm; it comprises a joint body and a joint flange fixedly connected to the end of the joint body; the joint flange is provided with an annular embedding groove on a side away from the joint body; a sealing ring is embedded in the embedding groove; the outer wall of the joint body is connected to a base ring; part of the outer wall of the base ring is movably connected to an adjusting ring; a ring sleeve is sleeved on the outer side of one of the joint flanges; the ring sleeve is fixedly connected to part of the outer wall of the base ring; a clamping groove is provided on the inner wall of the ring sleeve; a clamping block is slidably connected in the clamping groove; the end surface of the ring sleeve in contact with the adjusting ring is provided with a movable groove connected to the clamping groove; the present invention uses the ring sleeve to squeeze away surrounding obstacles before the joint flange contacts the manifold flange, opens space for the clamping of the clamping block, and enables the clamping block to be smoothly clamped on the manifold flange after the adjusting ring rotates. Compared with the existing loading and unloading arm joints, the structure is simple and the connection is smoother.

Description

Technical Field

[0001] The invention relates to the technical field of fluid delivery joints, in particular to a quick joint for a loading and unloading arm. Background Art

[0002] Loading arms generally refer to floating loading and unloading equipment used to connect ships and docks, which can transport liquid cargoes such as oil, chemicals or liquefied natural gas. The joint is one of the key components of the loading arm, which is responsible for ensuring that the loading arm is safely and reliably connected to the interface on the ship or the pipeline on the dock. After the joint end of the loading arm is aligned with the corresponding pipeline flange through the flange, the loading arm joint is connected to the corresponding pipeline by bolts. After the fluid is transported, the loading arm joint needs to be removed from the corresponding pipeline. Therefore, this connection method is inefficient and affects the fluid transportation efficiency. For this reason, we have previously proposed a technology with announcement number CN111550623B and patent name "quick joint for loading arm". In this scheme, after the loading arm joint is aligned with the corresponding pipeline through the guide plate, the control claw is flipped inward to achieve the compression of the loading arm joint and the corresponding pipeline.

[0003] With the commissioning of the loading and unloading arm joint, technicians have found that the existing loading and unloading arm joint still has the following problems during use: a) The existing loading and unloading arm joint needs to be aligned before the claws can be flipped inside to complete the clamping, and the connection efficiency is still relatively low; b) There are some hoses or lines around the pipeline, and the claws on the loading and unloading arm joint will inevitably cause motion interference with the hoses and lines during the flipping activity, thereby affecting the connection between the loading and unloading arm joint and the corresponding pipeline; c) After the current loading and unloading arm joint is connected to the corresponding pipeline, it is elastically clamped. When the fluid pressure in some corresponding pipelines is relatively high, a gap will be generated between the loading and unloading arm joint and the corresponding pipeline, affecting the connection effect of the loading and unloading arm joint; d) The current loading and unloading arm joint is driven by components such as hydraulic cylinders, and the transmission structure is complex and the cost is relatively high. Summary of the invention

[0004] In order to make up for the shortcomings of the prior art, the present invention proposes a quick connector for a loading and unloading arm. The present invention uses a ring sleeve to squeeze away surrounding obstacles before the connector flange contacts the manifold flange, leaving space for the clamping of the clamping block, so that the clamping block can be smoothly clamped on the manifold flange after the adjusting ring is rotated. Compared with the existing loading and unloading arm joint, the structure is simple and the connection is smoother. The setting of the ring sleeve can also protect the connector flange in the loading and unloading arm joint that is out of use, to prevent the connector flange from being damaged and affecting the connection.

[0005] The technical solution adopted by the present invention to solve its technical problems is: a quick connector for a loading and unloading arm described in the present invention comprises a connector body and a connector flange fixedly connected to the end of the connector body; a ring-shaped embedding groove is arranged on the side of the connector flange away from the connector body; a sealing ring is embedded in the embedding groove; the outer wall of the connector body is connected to a base ring; a part of the outer wall of the base ring is rotatably connected to an adjusting ring; a ring sleeve is sleeved on the outer side of one of the connector flanges; the ring sleeve is fixedly connected to a part of the outer wall of the base ring; a clamping groove is arranged on the inner wall of the ring sleeve; a clamping block is slidably connected in the clamping groove; an end surface of the ring sleeve in contact with the adjusting ring is provided with a movable groove connected to the clamping groove; a movable rod is movably connected in the movable groove; the movable rod can move radially along the ring sleeve in the movable groove; a guide groove is arranged along the end surface of the adjusting ring and axially penetrates the adjusting ring; one end of the guide groove is close to the edge of the adjusting ring, and the other end is inclined close to the center of the adjusting ring; one end of the movable rod is fixedly connected to the clamping block, and the other end extends into the corresponding guide groove.

[0006] Preferably, a first guide surface is provided on the side of the ring sleeve away from the adjustment ring; the distance between the first guide surface and the adjustment ring decreases as approaching the central axis of the ring sleeve; a second guide surface is provided on the side of the clamping block away from the adjustment ring; the inclination direction of the second guide surface is consistent with that of the first guide surface; a chamfer is provided on the side of the clamping block facing the adjustment ring and away from the position of the movable rod.

[0007] Preferably, the inner wall of the adjustment ring is rotationally connected to the outer wall of the base ring via a first torsion spring; the adjustment ring drives the movable rod to move to one end of the guide groove close to the joint body under the action of the first torsion spring.

[0008] Preferably, a track groove is provided on the outer wall of the joint body; an L-shaped groove is provided on the inner wall of the base ring, which is connected to the side of the base ring away from the blocking block; one end of the L-shaped groove corresponds to the track groove; one end of the L-shaped groove is slidably connected to a locking block; the locking block is connected to the inner wall of the L-shaped groove through a spring; the other end of the L-shaped groove is movably connected to a shift block; the shift block is connected to the locking block near one end of the spring; the end of the track groove extends toward the two joint flanges; the base ring can generate axial movement along the track groove of the joint body; the ring sleeve can be moved away from the outside of the corresponding joint flange along the base ring.

[0009] Preferably, the track groove is spiral in shape; teeth are provided at the bottom of the track groove; a third guide surface is provided at one end of the locking block close to the track groove; and the end of the locking block close to the track groove is unidirectionally meshed with the teeth in the track groove.

[0010] Preferably, the inner wall of the base ring is rotatably connected to a swivel near the clamping block; the swivel is fixedly connected to one of the joint flanges via a tension spring; and the tension of the tension spring is greater than the torsion of the first torsion spring.

[0011] Preferably, the shift block is rotatably connected to the locking block via a second torsion spring; a locking groove is provided at the other end of the L-shaped groove away from the joint body; and the shift block can be rotated into the locking groove.

[0012] Preferably, a threaded hole is provided on one side of the block close to the movable rod and corresponding to the movable rod; an external thread is provided on the outer wall of one end of the movable rod close to the threaded hole; the end of the movable rod close to the block is threadedly connected in the threaded hole; and a hexagonal groove is provided on one end of the movable rod away from the block.

[0013] The beneficial effects of the present invention are as follows:

[0014] 1. The present invention uses a ring sleeve to squeeze away surrounding obstacles before the joint flange contacts the manifold flange, leaving space for the clamping block to be clamped, so that the clamping block can be smoothly clamped on the manifold flange after the adjustment ring is rotated. Compared with the existing loading and unloading arm joint, the structure is simpler and the connection is smoother. The setting of the ring sleeve can also protect the joint flange in the loading and unloading arm joint that is out of use, to avoid damage to the joint flange affecting the connection.

[0015] 2. In the present invention, after the manifold flange moves relatively to the inner side of the annular sleeve under the guiding action of the annular sleeve, the clamping block automatically extends out of the clamping slot under the action of the first torsion spring to clamp the manifold flange, thereby quickly completing the connection between the loading and unloading arm joint and the manifold flange. Compared with the existing clamping method, the joint connection speed is faster and the connection is more stable.

[0016] 3. The present invention reserves a gap between the clamping block and the joint flange so that the clamping block can quickly extend out of the clamping slot, and then reduces the distance between the clamping block and the joint flange, so that the loading and unloading arm joint can be easily and quickly connected to the pipeline, avoiding the situation where the clamping block fails to extend out of the clamping slot and causes jamming, thereby improving the connection stability of the loading and unloading arm joint and improving the sealing performance of the loading and unloading arm joint after being connected to the manifold flange. In addition, the loading and unloading arm joint can be used for manifold flanges of different models, thereby increasing the scope of application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention is further described below in conjunction with the accompanying drawings and implementation modes.

[0018] Figure 1 is a schematic diagram of the present invention after being connected to the manifold flange;

[0019] Figure 2 yes Figure 1 A three-dimensional image from another angle;

[0020] Figure 3 yes Figure 2 The enlarged view of point A in the middle;

[0021] Figure 4 yes Figure 1 A cross-sectional view of

[0022] Figure 5 yes Figure 4 The enlarged view of point B in the middle;

[0023] Figure 6 is a stereogram of the present invention;

[0024] Figure 7 It is a three-dimensional diagram of the joint body and the joint flange in the present invention;

[0025] Figure 8 is a stereogram of the ring sleeve, the adjustment ring and the base ring in the present invention;

[0026] Fig. 9 yes Figure 8 Enlarged view of point C in the middle;

[0027] Fig.10 It is a stereogram of the ring sleeve in the present invention.

[0028] In the figure: joint body 1, track groove 11, joint flange 2, embedded groove 21, sealing ring 22, base ring 3, L-shaped groove 31, locking groove 32, adjusting ring 4, guide groove 41, first torsion spring 42, ring sleeve 5, clamping groove 51, movable groove 52, movable rod 53, hexagonal groove 531, first guide surface 54, clamping block 6, second guide surface 61, chamfer 62, threaded hole 63, locking block 7, spring 71, shift block 72, third guide surface 73, second torsion spring 74, swivel 8, tension spring 81. DETAILED DESCRIPTION

[0029] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0030] like Figures 1 to 10 As shown, the present invention includes the following embodiments:

[0031] Embodiment 1: A quick connector for a loading and unloading arm, comprising a connector body 1 and a connector flange 2 fixedly connected to the end of the connector body 1; the connector flange 2 is provided with an annular embedding groove 21 on a side away from the connector body 1; a sealing ring 22 is embedded in the embedding groove 21; the outer wall of the connector body 1 is connected to a base ring 3; a part of the outer wall of the base ring 3 is rotatably connected to an adjusting ring 4; a ring sleeve 5 is sleeved on the outer side of one of the connector flanges 2; the ring sleeve 5 is fixedly connected to a part of the outer wall of the base ring 3; the inner wall of the ring sleeve 5 is provided with a clamping groove 51; the clamping groove 52 is provided on the inner wall of the ring sleeve 5 ... A clamping block 6 is slidably connected in the groove 51; a movable groove 52 communicating with the clamping groove 51 is provided on the end surface of the ring sleeve 5 in contact with the adjusting ring 4; a movable rod 53 is movably connected in the movable groove 52; the movable rod 53 can move radially along the ring sleeve 5 in the movable groove 52; a guide groove 41 is axially penetrated along the end surface of the adjusting ring 4; one end of the guide groove 41 is close to the edge of the adjusting ring 4, and the other end is inclined close to the center of the adjusting ring 4; one end of the movable rod 53 is fixedly connected to the clamping block 6, and the other end extends into the corresponding guide groove 41.

[0032] In this embodiment, the ring sleeve 5 is provided with a first guide surface 54 on the side away from the adjustment ring 4; the distance between the first guide surface 54 and the adjustment ring 4 decreases as it approaches the central axis of the ring sleeve 5; the clamping block 6 is provided with a second guide surface 61 on the side away from the adjustment ring 4; the inclination direction of the second guide surface 61 is adapted to the first guide surface 54; the clamping block 6 is provided with a chamfer 62 on the side facing the adjustment ring 4 and away from the movable rod 53.

[0033] In this embodiment, the inner wall of the adjustment ring 4 is rotatably connected to the outer wall of the base ring 3 via a first torsion spring 42 ; the adjustment ring 4 drives the movable rod 53 to move to one end of the guide groove 41 close to the joint body 1 under the action of the first torsion spring 42 .

[0034] Specifically, the ends of the joint body 1 are connected to the joint flanges 2, one of which is located inside the ring sleeve 5, and the other joint flange 2 is away from the ring sleeve 5. The joint flange 2 away from the ring sleeve 5 will be connected to the loading and unloading arm by bolts. The loading and unloading arm will control the loading and unloading arm joint to approach the manifold flange of the corresponding pipeline during use. The loading and unloading arm or the manual control ring sleeve 5 is provided with an opening of the first guide surface 54 facing the manifold flange. When the end face of the joint flange 2 inside the ring sleeve 5 tends to be parallel to the end face of the manifold flange, the joint flange 2 in the control ring sleeve 5 is close to the manifold flange, and the manifold flange contacts the first guide surface 54 on the ring sleeve 5. The first guide surface 54 guides the ring sleeve 5 to be sleeved on the outside of the manifold flange, so that the manifold flange smoothly enters the inside of the ring sleeve 5 and contacts the second guide surface 61. The second guide surface 61 is arranged close to the first guide surface 54, so that the manifold flange smoothly enters the second guide surface 61, and the hose or line around the manifold flange is pushed away under the action of the ring sleeve 5.

[0035] The manifold flange will squeeze the second guide surface 61, so that the block 6 slides along the card slot 51 under the squeezing of the second guide surface 61. The block 6 will drive the movable rod 53 to move along the movable slot 52 when it slides away from the central axis of the ring sleeve 5 along the card slot 51. The movable rod 53 will move with the guide slot 41 when it moves away from the central axis of the ring sleeve 5 along the movable slot 52. The other end of the movable rod 53 will drive the adjusting ring 4 to overcome the first torsion spring 42 and rotate in the opposite direction when it moves along the guide slot 41. The adjusting ring 4 will rotate on the outer wall of the base ring 3. The adjusting ring 4 will drive all the guide slots 41 to rotate when it rotates in the opposite direction. All the guide slots 41 will drive the corresponding movable rod 53 to move as the adjusting ring 4 rotates. In this way, when the second guide surface 61 on one of the blocks 6 is squeezed by the manifold flange, all the blocks 6 can be retracted to the corresponding card slot 51 for avoidance. In this way, the manifold flange can be more easily moved relatively to the inner side of the ring sleeve 5.

[0036] The joint flange 2 in the ring sleeve 5 drives the sealing ring 22 in the embedded groove 21 to contact the manifold flange. As the joint flange 2 continues to approach the manifold flange, the sealing ring 22 is flattened. At the same time, multiple clamping blocks 6 pass over the manifold flange as the ring sleeve 5 moves axially. Then the first torsion spring 42 drives the adjusting ring 4 to rotate forward and reset. During the rotation process of the adjusting ring 4 under the action of the first torsion spring 42, the multiple guide grooves 41 are driven to move. During the rotation process, the multiple guide grooves 41 drive the movable rod 53 to move close to the joint body 1. The movable rod 53 Under the guidance of the guide groove 41, the movable rod 53 drives the clamping block 6 to approach the central axis of the ring sleeve 5 along the clamping groove 51. Since the clamping block 6 is provided with a chamfer 62 at a position close to the adjusting ring 4 and away from the movable rod 53, the clamping block 6 can smoothly pass over the manifold flange under the guidance of the chamfer 62, so that the clamping block 6 can smoothly extend from the clamping groove 51 under the torsion of the first torsion spring 42. After the clamping block 6 extends from the clamping groove 51, the connection and locking between the joint body 1 in the ring sleeve 5 and the manifold flange are completed;

[0037] Then the fluid is controlled to be transported, and the fluid flows through the connector body 1 and the inner side of the connector flange 2. Since the distance between the block 6 and the connector flange 2 is constant, the connector flange 2 and the manifold flange will not be pushed apart by the fluid pressure. After the fluid transportation is completed, the control adjustment ring 4 is rotated in the opposite direction. The outer wall of the adjustment ring 4 is provided with an anti-skid portion to prevent slipping. After the staff rotates the adjustment ring 4, the guide groove 41 will be driven to move synchronously. The guide groove 41 will move again with the other end of the movable rod 53, so that the movable rod 53 will move away from the guide groove 41. The central axis of the ring sleeve 5, the movable rod 53 moves along the movable groove 52 away from the center of the ring sleeve 5, and the movable rod 53 drives the clamping block 6 to slide along the clamping groove 51 and away from the central axis of the ring sleeve 5, so that the clamping block 6 returns to the clamping groove 51 for avoidance, so that the manifold flange and the joint flange 2 in the ring sleeve 5 are unlocked, and then the control ring sleeve 5 is moved away from the outside of the manifold flange. After loosening the adjusting ring 4, the first torsion spring 42 will drive the adjusting ring 4 to reset, and the clamping block 6 will extend out of the clamping groove 51 again, preparing for the next connection between the loading and unloading arm joint and the manifold flange;

[0038] The present invention uses the ring sleeve 5 to push away surrounding obstacles before the joint flange 2 contacts the manifold flange, and opens space for the clamping block 6, so that the clamping block 6 can be smoothly clamped on the manifold flange after the adjustment ring 4 rotates. Compared with the existing loading and unloading arm joint, the structure is simpler and the connection is smoother. The setting of the ring sleeve 5 can also protect the joint flange 2 in the loading and unloading arm joint that is out of use, so as to avoid damage to the joint flange 2 and affect the connection.

[0039] In the present invention, after the manifold flange moves relatively to the inner side of the annular sleeve under the guidance of the annular sleeve 5, the clamping block 6 automatically extends out of the clamping groove 51 under the action of the first torsion spring 42 to clamp the manifold flange, thereby quickly completing the connection between the loading and unloading arm joint and the manifold flange. Compared with the existing clamping method, the joint connection speed is faster and the connection is more stable.

[0040] Embodiment 2: The outer wall of the joint body 1 is provided with a track groove 11; the inner wall of the base ring 3 is connected to the side of the base ring 3 away from the blocking block 6 and is provided with an L-shaped groove 31; one end of the L-shaped groove 31 corresponds to the track groove 11; one end of the L-shaped groove 31 is slidably connected to the locking block 7; the locking block 7 is connected to the inner wall of the L-shaped groove 31 through a spring 71; the other end of the L-shaped groove 31 is movably connected to the shift block 72; the shift block 72 is connected to the end of the locking block 7 close to the spring 71; the end of the track groove 11 extends toward the two joint flanges 2; the base ring 3 can generate axial movement along the track groove 11 of the joint body 1; the ring sleeve 5 can be moved away from the outside of the corresponding joint flange 2 along with the base ring 3.

[0041] In this embodiment, the track groove 11 is spiral in shape; teeth are provided at the bottom of the track groove 11; a third guide surface 73 is provided at one end of the locking block 7 close to the track groove 11; and one end of the locking block 7 close to the track groove 11 is unidirectionally meshed with the teeth in the track groove 11.

[0042] In this embodiment, the inner wall of the base ring 3 is rotatably connected to the swivel 8 near the block 6; the swivel 8 is fixedly connected to one of the joint flanges 2 via a tension spring 81; the tension of the tension spring 81 is greater than the torsion of the first torsion spring 42.

[0043] In this embodiment, the shift block 72 is rotatably connected to the locking block 7 via a second torsion spring 74 ; a locking groove 32 is provided at the other end of the L-shaped groove 31 away from the connector body 1 ; and the shift block 72 can be rotated into the locking groove 32 .

[0044] Specifically, the staff will change the connection mode of the loading and unloading arm joint according to the usage of the loading and unloading arm joint. For temporary liquid delivery, only a clamping connection is required to meet the convenience and speed requirements. For long-term liquid delivery, a flange fixed connection is used, which is more secure. For the flange connection, the ring sleeve 5 needs to be moved away from the outside of the joint flange 2, specifically, the adjustment ring 4 is rotated in the opposite direction to overcome the movement of the first torsion spring 42. The adjustment ring 4 will drive the guide groove 41 to move, so that the guide groove 41 drives the movable rod 53 and the clamping block 6 to move, so that the clamping block 6 is retracted into the clamping groove 51 for avoidance. After the adjustment ring 4 and the ring sleeve 5 are rotated relative to the limit position, the clamping block 6 is kept retracted to the clamping groove 51.

[0045] The control ring sleeve 5 rotates forward, and the ring sleeve 5 will drive the base ring 3 to rotate forward during the forward rotation. The base ring 3 will drive the locking block 7 to move along the track groove 11 during the forward rotation. The track groove 11 is spiral. The locking block 7 contacts the teeth in the track groove 11 through the third guide surface 73 as the base ring 3 rotates forward. The locking block 7 is unidirectionally meshed with the teeth, so the locking block 7 enters one end of the L-shaped groove 31 under the pressure of the teeth to avoid it. In this way, the locking block 7 moves along the spiral track groove 11, and the ring sleeve 5 is smoothly moved away from the outside of the joint flange 2. The base ring 3 will pull the tension spring 81 when it moves away from the joint flange 2 in contact with the manifold flange. , the swivel 8 will not affect the rotation of the base ring 3 until the ring sleeve 5 moves to the position between the two joint flanges 2 and stops moving. The locking block 7 is stuck on the teeth in the track groove 11 under the push of the spring 71. Since the locking block 7 is in one-way meshing with the teeth, the base ring 3 is locked on the track groove 11 under the action of the locking block 7. The tension spring 81 cannot pull the base ring 3 to reset. After the ring sleeve 5 moves between the two joint flanges 2, the joint flange 2 will be exposed. Then, after the joint flange 2 is aligned with the manifold flange, bolts are used to connect them. This is long-term liquid delivery. For the clamping method, the ring sleeve 5 can be kept on the outside of one of the joint flanges 2.

[0046] As for the clamping method, the loading and unloading arm joint approaches and aligns with the corresponding manifold flange under control, and then the ring sleeve 5 is sleeved on the outside of the manifold flange under the guidance of the first guide surface 54. In the process of the manifold flange squeezing the second guide surface 61 on the clamping block 6, since the tension of the first tension spring 81 is greater than the first torsion spring 42, the ring sleeve 5 will not cause axial movement, ensuring that there is a large gap between the clamping block 6 and the joint flange 2. After the ring sleeve 5 is sleeved on the outside of the manifold flange, the clamping groove 51 will pass over the outside of the manifold flange, and the clamping block 6 will re-extend the clamping groove 51 under the action of the first torsion spring 42. In order to make the clamping block 6 suitable for manifold flanges of different thicknesses, or to further improve the clamping effect of the manifold flange and the joint flange 2, the staff will control the ring sleeve 5 or the adjusting ring 4 to rotate. The adjusting ring 4 and the control ring will drive the base ring 3 to rotate forward during the forward rotation, and the base ring 3 will cause the locking block 7 to move along the spiral track groove 11 during the forward rotation.

[0047] The locking block 7 is unidirectionally meshed with the teeth in the track groove 11, so the base ring 3 can move away from the manifold joint along the spiral track groove 11, and the base ring 3 will drive the ring sleeve 5 to produce axial displacement, and the ring sleeve 5 will drive the block 6 extending out of the slot 51 to approach and press on the side of the manifold flange away from the joint flange 2, and then stop the rotation of the ring sleeve 5. The locking block 7 is clamped into the track groove 11 under the action of the spring 71, so that the base ring 3 is locked on the outer wall of the joint body 1, so that the base ring 3 will not be pulled by the tension spring 81 and reset, completing the connection of manifold flanges of different thicknesses. After the fluid is transported, the dial block 72 is driven to retract the locking block 7 into one end of the L-shaped slot 31, and the dial block 72 moves along the other end of the L-shaped slot 31. After the movement, the shift block 72 is clamped into the locking groove 32 under the action of the second torsion spring 74, and the shift block 72 is kept in the state of being retracted into the L-shaped groove 31. After the shift block 72 is separated from the track groove 11, the base ring 3 and the track groove 11 are unlocked, and the adjusting ring 4 is rotated in the opposite direction. The adjusting ring 4 will drive the clamping block 6 to retract into the clamping groove 51. After the adjusting ring 4 reaches the rotation limit position, it will drive the base ring 3 to rotate, and under the tension of the tension spring 81, the tension spring 81 will pull the rotating ring 8 to drive the base ring 3 to reset. After the clamping block 6 is retracted into the clamping groove 51, it will move away from the joint flange 2, and then the ring sleeve 5 can be directly removed from the outer side of the manifold flange; finally, the shift block 72 is moved out of the locking groove 32, and the locking block 7 extends out of the L-shaped groove 31 under the action of the spring 71;

[0048] In this embodiment, a gap is reserved between the clamping block 6 and the joint flange 2 so that the clamping block 6 can be quickly extended out of the clamping slot 51, and then the distance between the clamping block 6 and the joint flange 2 is reduced, so that the loading and unloading arm joint can be easily and quickly connected to the pipeline, avoiding the situation where the clamping block 6 does not extend out of the clamping slot 51 and causing jamming, thereby improving the connection stability of the loading and unloading arm joint and improving the sealing performance of the loading and unloading arm joint after being connected to the manifold flange. In addition, the loading and unloading arm joint can be used for manifold flanges of different models, thereby increasing the scope of application.

[0049] Embodiment 3: A threaded hole 63 is provided on one side of the block 6 close to the movable rod 53 and corresponding to the movable rod 53; an external thread is provided on the outer wall of one end of the movable rod 53 close to the threaded hole 63; the end of the movable rod 53 close to the block 6 is threadedly connected in the threaded hole 63; a hexagonal groove 531 is provided on the end of the movable rod 53 away from the block 6. Specifically, the block 6 and the movable rod 53 will inevitably be damaged due to long-term use. The staff will use a hexagonal wrench to insert the movable rod 53 into the hexagonal groove 531 at the end of the movable rod 53 away from the block 6, and then twist the movable rod 53 so that the end of the movable rod 53 close to the block 6 is screwed out from the threaded hole 63 on the block 6, and then the block 6 is removed from the notch of the slot 51 and replaced, and the movable rod 53 is reconnected to the block 6. There are multiple threaded holes 63 on the block 6. The staff can screw the movable rod 53 on the threaded holes 63 at different positions according to the need to extend the block 6 out of the slot 51, so as to meet the requirements of the manifold flanges with different diameters. The slot 51 can pass through the ring sleeve 5 in the radial direction of the ring sleeve 5, which is convenient for observation on the one hand and avoids the movement of the block 6 on the other hand.

[0050] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate directions or positional relationships based on the attached Figure 1 The orientation or positional relationship shown is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it cannot be understood as limiting the scope of protection of the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0051] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A quick connector for a loading and unloading arm, comprising a connector body and a connector flange fixedly connected to the end of the connector body; the connector flange is provided with an annular embedding groove on a side away from the connector body; a sealing ring is embedded in the embedding groove; the characteristics are: The outer wall of the joint body is connected to the base ring; part of the outer wall of the base ring is rotatably connected to the adjusting ring; a ring sleeve is sleeved on the outer side of one of the joint flanges; the ring sleeve is fixedly connected to part of the outer wall of the base ring; a clamping groove is provided on the inner wall of the ring sleeve; a clamping block is slidably connected in the clamping groove; the end surface of the ring sleeve in contact with the adjusting ring is provided with a movable groove connected to the clamping groove; a movable rod is movably connected in the movable groove; the movable rod can move radially along the ring sleeve in the movable groove; the adjusting ring is provided with a guide groove along the end surface along the axial direction; one end of the guide groove is close to the edge of the adjusting ring, and the other end is inclined close to the center of the adjusting ring; one end of the movable rod is fixedly connected to the clamping block, and the other end extends into the corresponding guide groove; The inner wall of the adjusting ring is rotatably connected to the outer wall of the base ring via a first torsion spring; the adjusting ring drives the movable rod to move to one end of the guide groove close to the joint body under the action of the first torsion spring; The outer wall of the joint body is provided with a track groove; the inner wall of the base ring is connected to the side of the base ring away from the clamping block and is provided with an L-shaped groove; one end of the L-shaped groove corresponds to the track groove; one end of the L-shaped groove is slidably connected to the locking block; the locking block is connected to the inner wall of the L-shaped groove through a spring; the other end of the L-shaped groove is movably connected to the shifting block; the shifting block is connected to the end of the locking block close to the spring; the end of the track groove extends toward the two joint flanges; the base ring can generate axial movement along the track groove of the joint body; the ring sleeve can be moved away from the outer side of the corresponding joint flange along with the base ring; The track groove is spiral in shape; teeth are arranged at the bottom of the track groove; a third guide surface is arranged at one end of the locking block close to the track groove; and one end of the locking block close to the track groove is unidirectionally meshed with the teeth in the track groove; The inner wall of the base ring is rotatably connected to the rotating ring near the clamping block; the rotating ring is fixedly connected to one of the joint flanges through a tension spring; the tension of the tension spring is greater than the torsion of the first torsion spring; The shift block is rotatably connected to the locking block via a second torsion spring; a locking groove is provided at the other end of the L-shaped groove away from the joint body; and the shift block can be rotated into the locking groove.

2. A quick connector for a loading and unloading arm according to claim 1, characterized in that: The ring sleeve is provided with a first guide surface on the side away from the adjustment ring; the distance between the first guide surface and the adjustment ring decreases as it approaches the central axis of the ring sleeve; the clamping block is provided with a second guide surface on the side away from the adjustment ring; the inclination direction of the second guide surface is consistent with that of the first guide surface; the clamping block is provided with a chamfer on the side facing the adjustment ring and away from the position of the movable rod.

3. A quick connector for a loading and unloading arm according to claim 1, characterized in that: A threaded hole is arranged on one side of the block close to the movable rod and corresponding to the movable rod; an outer wall of one end of the movable rod close to the threaded hole is provided with an external thread; one end of the movable rod close to the block is threadedly connected in the threaded hole; and a hexagonal groove is arranged on one end of the movable rod away from the block.

Images