Large-diameter sludge pipe tail pipe quick connecting device

Abstract

The application belongs to the technical field of pipeline connecting device, and discloses a large-scale sludge discharge pipe tail pipe quick connecting device, which comprises a connecting pipe as a mounting structure of the connecting device, a connecting joint fixedly connected to the bottom end of the connecting pipe and used for guiding the sludge water, a sleeve ring sleeved on the outer surface of the connecting joint and used for increasing the connecting point on the outer side of the connecting joint, a rotating block rotatably connected to the sleeve ring, a rotating structure rotatably connected to the rotating block, and a locking structure capable of adaptively locking or unlocking according to the relative position (inclination angle / coaxiality) of the sleeve ring and the connecting joint, so that the sleeve ring, the rotating block and the rotating structure are separated or fixed, and the rigidity cooperation of the inserting rod and the inserting hole and the pre-tightening force of the spring telescopic rod in the locked state ensure the stability of the connection during use and avoid swinging; the automatic unlocking in the non-use state (inclination alignment) facilitates the adjustment of the components and the flexible operation.

Description

Technical Field

[0001] This invention belongs to the technical field of pipeline connection equipment, and particularly relates to a quick connection device for a large sludge discharge pipe tailpipe. Background Technology

[0002] In dredging projects, water conservancy dredging and other sludge removal operations, the connection efficiency and reliability of sludge removal pipes (especially tailpipes) are crucial to the construction progress. Furthermore, large connecting devices need to utilize a sleeve structure when connecting to the tailpipe to suspend the connecting device.

[0003] The collar requires a locking structure for fixing. In existing technologies, there is no self-adaptive fixing mechanism between the locking structure and the collar. This not only makes it easy for the screw to deviate during the tilting and alignment stage due to component shaking (the deviation rate can reach 15% to 20%), but also exacerbates component wear under high-frequency vibration (vibration frequency 5 to 10 Hz) during mud removal operations, shortening the service life of the device (average life of only 6 to 8 months). At the same time, the traditional connection device requires manual calibration for pre-positioning, and a single connection takes ≥30 minutes, which seriously affects construction efficiency. Summary of the Invention

[0004] This invention addresses the problem in existing technologies where a locking structure is required for fixing the collar, but the locking structure cannot be properly secured to the collar during use, causing oscillation between the locking structure and the collar. The invention proposes the following technical solution:

[0005] A quick connection device for a large sludge discharge pipe tailpipe includes:

[0006] Connecting pipe, serving as the mounting structure for connecting devices;

[0007] A connecting joint is fixedly connected to the bottom end of the connecting pipe and is used to guide the mud and water.

[0008] A collar is fitted onto the outer surface of the connector to increase the number of connection points on the outside of the connector.

[0009] Two rotating blocks are provided, both of which are rotatably connected inside the collar.

[0010] A rotating structure is rotatably connected inside the rotating block;

[0011] A lead screw is threaded through and connected to the middle of the rotating structure;

[0012] The mounting ring is threaded to the outer surface of the lead screw, and the lead screw keeps the position of the rotating structure and the rotating block fixed.

[0013] The stabilizing component includes a pre-fixed structure and a locking structure. The pre-fixed structure is located inside the collar to fix the position of the rotating block after rotation and to make the two rotating structures face each other, thereby facilitating the connection of the two lead screws.

[0014] A locking structure is provided below the pre-fixed structure. When the collar and the connecting joint are tilted, the locking structure cannot fix the collar and the rotating block and the rotating structure.

[0015] When the collar and the connecting joint axis coincide, the locking structure locks and fixes the collar, rotating block, and rotating structure.

[0016] As a preferred embodiment of the above technical solution, the rotating structure includes a rotating roller, which is rotatably connected to the inside of the rotating block. The top and bottom ends of the rotating roller are welded with columns, and iron blocks are snapped onto the outside of the columns.

[0017] As a preferred embodiment of the above technical solution, the pre-fixed structure includes a positioning plate, which is fixedly installed on a collar. A limit strip is snapped onto the top of the positioning plate. A gear is rotatably connected to the top of the positioning plate at the bottom of the limit strip. A rack is meshed with the outside of the gear. A connecting plate is snapped onto one end of the rack. A protrusion is embedded in one end of the connecting plate. A magnet is embedded in the bottom of the connecting plate.

[0018] As a preferred embodiment of the above technical solution, the inner wall of the limiting strip is symmetrically welded with metal sheets, and an arc-shaped strip is sleeved on the outer side of the metal sheets. The two ends of the arc-shaped strip are welded to the outer side of the rotating block.

[0019] As a preferred embodiment of the above technical solution, the locking structure includes a guide rod, which is slidably connected inside the collar. A ball bearing is embedded in the bottom end of the guide rod, and a movable plate is snapped onto the top end of the guide rod. A spring telescopic rod is snapped between the bottom end of the movable plate and the top end of the collar, and a plug rod is embedded in the top end of the movable plate.

[0020] As a preferred embodiment of the above technical solution, both the rotating block and the rotating roller have insertion holes at their bottom ends, the insertion rod is located inside the insertion hole, and the top end of the insertion rod has an inclination angle.

[0021] As a preferred embodiment of the above technical solution, the number of the arc-shaped strips is set to two, one of which has serrations on its outer side, and the serrations on the outer side of the arc-shaped strip mesh with the outer side of the gear.

[0022] As a preferred embodiment of the above technical solution, the convex strip is slidably connected to the inside of the positioning plate, and a positioning hole is provided inside the positioning plate corresponding to one end of the convex strip.

[0023] As a preferred embodiment of the above technical solution, a support column is welded to the bottom end of the positioning plate, and the bottom end of the support column and the top end of the collar are fixedly connected.

[0024] The beneficial effects of this invention are as follows:

[0025] (1) The locking structure can adaptively lock or unlock the connection between the collar, rotating block and rotating structure according to the relative position (tilt angle / coaxiality) of the collar and the connecting joint. In the locked state, the rigid fit between the insert rod and the insertion hole and the pre-tightening force of the spring telescopic rod ensure stable connection (radial runout ≤0.2mm) during use and avoid swinging. In the non-use state (tilt alignment), it automatically unlocks, which is convenient for component adjustment and flexible operation.

[0026] (2) Through the pre-fixed structure, the pre-positioning of the rotating structure and the rotating block can be quickly realized. With the help of magnetic attraction and other effects, the lead screw can be quickly aligned, greatly shortening the installation preparation time and improving the connection efficiency compared with the traditional manual calibration method. Attached Figure Description

[0027] Figure 1 The diagram shown is a structural schematic of the quick connection device for the large sludge discharge pipe tailpipe in Embodiment 1;

[0028] Figure 2 This is a schematic diagram of the quick connection device for the large sludge discharge pipe tailpipe in Embodiment 1 from another angle.

[0029] Figure 3 The diagram shown is a schematic of the installation structure of the spring telescopic rod in Embodiment 1;

[0030] Figure 4 The diagram shown is a schematic of the installation structure of the arc-shaped strip in Embodiment 1;

[0031] Figure 5 The diagram shown is a schematic of the gear mounting structure in Embodiment 1;

[0032] Figure 6 The diagram shown is a schematic diagram of the opening structure of the insertion hole in Embodiment 1;

[0033] Figure 7 The diagram shown is a structural schematic of the metal sheet in Example 1.

[0034] In the diagram: 1. Connecting pipe; 2. Connecting joint; 3. Collar; 4. Rotating block; 5. Rotating structure; 51. Rotating roller; 52. Column; 53. Iron block; 6. Lead screw; 7. Mounting ring; 81. Guide rod; 82. Ball bearing; 83. Moving plate; 84. Spring telescopic rod; 85. Insert rod; 86. Positioning plate; 87. Limiting strip; 88. Gear; 89. Rack; 810. Connecting plate; 811. Magnet; 812. Raised strip; 813. Arc strip; 814. Metal sheet; 9. Insertion hole. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0036] Example 1

[0037] This invention provides a quick connection device for a large sludge discharge pipe tailpipe, such as... Figures 1 to 7 As shown, it includes: a connecting pipe 1, a connecting joint 2, a collar 3, a rotating block 4, a rotating structure 5, a lead screw 6, a mounting ring 7, a pre-fixed structure, and a locking structure; the connecting pipe 1 serves as the mounting structure for the connecting device; the connecting joint 2 is fixedly connected to the bottom end of the connecting pipe 1 for guiding mud and water; the collar 3 is fitted onto the outer surface of the connecting joint 2 to increase the connection points on the outside of the connecting joint 2; there are two rotating blocks 4, both rotatably connected inside the collar 3; the rotating structure 5 is rotatably connected inside the rotating block 4; the lead screw 6 is threaded through and connected to the middle of the rotating structure 5; the mounting ring 7... The screw is threaded onto the outer surface of the lead screw 6, which keeps the positions of the rotating structure 5 and the rotating block 4 fixed. The pre-fixing structure is set inside the collar 3 to fix the position of the rotating block 4 after rotation and to make the two rotating structures 5 face each other, thus facilitating the docking of the two lead screws 6. The locking structure is set below the pre-fixing structure. When the collar 3 and the connecting joint 2 are tilted, the locking structure cannot fix the collar 3 and the rotating block 4 and the rotating structure 5. When the center line of the collar 3 and the connecting joint 2 coincides, the locking structure locks and fixes the collar 3 and the rotating block 4 and the rotating structure 5.

[0038] To achieve the rotation of the rotating structure 5 in the above example, the following solution is proposed: Figure 2 and Figure 3 As shown, the rotating structure 5 includes a rotating roller 51, which is rotatably connected to the inside of the rotating block 4. The top and bottom ends of the rotating roller 51 are both welded with columns 52, and iron blocks 53 are snapped onto the outside of the columns 52.

[0039] In use, by rotating the rotating roller 51, the rotating roller 51 drives the column 52 to rotate inside the rotating block 4, thereby driving the iron block 53 to rotate.

[0040] To address the issue of pre-fixing the rotating structure 5 and the rotating block 4 in the above example, thus preventing the locking structure from becoming unusable due to misalignment of the rotating structure 5 and the rotating block 4, the following solution is proposed: Figures 3 to 7 As shown, the pre-fixed structure includes a positioning plate 86. A support column is welded to the bottom of the positioning plate 86. The bottom of the support column is fixedly connected to the top of the collar 3. The positioning plate 86 is fixedly installed on the collar 3 through the support column. A limit strip 87 is snapped onto the top of the positioning plate 86. A gear 88 is rotatably connected to the top of the positioning plate 86 at the bottom of the limit strip 87. A rack 89 is meshed with the outside of the gear 88. A connecting plate 810 is snapped onto one end of the rack 89. A protrusion 812 is embedded in one end of the connecting plate 810. The protrusion 812 is slidably connected inside the positioning plate 86. A positioning hole is opened inside the positioning plate 86 corresponding to one end of the protrusion 812. The bottom of the connecting plate 810 is embedded in the positioning plate 86. There is a magnet 811 (the magnet 811 is a neodymium iron boron permanent magnet, and its surface is nickel plated). The inner wall of the limiting strip 87 is symmetrically welded with metal sheets 814 (the metal sheets 814 are made of spring steel material, and after heat treatment, they have excellent elasticity and fatigue strength and can withstand repeated bending deformation). The outer side of the metal sheet 814 is sleeved with an arc strip 813. The two ends of the arc strip 813 are welded to the outer side of the rotating block 4. There are two arc strips 813 in total. One of the arc strips 813 has serrations on its outer side. The serrations on the outer side of the arc strip 813 mesh with the outer side of the gear 88. The arc strip 813 has placement holes equidistantly opened inside. The metal sheet 814 is located inside the placement holes.

[0041] In use, as the rotating block 4 rotates, it drives the arc strip 813 to rotate. When the arc strip 813 rotates, it first squeezes the metal sheet 814, causing the metal sheet 814 to deform. When the metal sheet 814 enters the second placement hole, it is under tension and enters the second placement hole. This process repeats, so that when the rotating block 4 drives the arc strip 813 to rotate, it is limited by the action of the metal sheet 814 and the placement hole.

[0042] Meanwhile, a serration is provided on the outer side of one of the arc-shaped bars 813. The serration on the outer side of the arc-shaped bar 813 meshes with the outer side of the gear 88, causing the gear 88 to rotate. At this time, the gear 88 rotates under the limiting action of the protrusion 812, causing the rack 89 to move. When the rack 89 moves, it drives the magnet 811 to move through the connecting plate 810, so that the magnet 811 corresponds with the iron block 53. At this time, under the action of magnetic attraction, when the two rotating blocks 4 rotate relative to each other, the lead screws 6 in the two rotating rollers 51 correspond due to the magnetic attraction, which facilitates the connection between the mounting ring 7 and the lead screw 6, changes the time required for the correspondence between the two, and pre-fixes the two through the magnetic attraction.

[0043] To address the issues raised in the above example, such as how to prevent the locking structure from securing the collar 3, rotating block 4, and rotating structure 5 when the collar 3 and connecting joint 2 are tilted, and how to ensure the locking structure effectively locks the collar 3, rotating block 4, and rotating structure 5 when the collar 3 and connecting joint 2's axis coincides (during use), the following solutions are proposed: Figure 3 , Figure 5 and Figure 6 As shown, the locking structure includes a guide rod 81. A circular hole is provided inside the collar 3. The guide rod 81 is slidably connected to the inside of the collar 3 through the circular hole. A ball bearing 82 is embedded in the bottom end of the guide rod 81 (the ball bearing is made of high carbon chromium bearing steel with a surface hardness of HRC62-66 to ensure its wear resistance in frequent sliding contact). A movable plate 83 is snapped onto the top end of the guide rod 81. A groove is provided inside the collar 3. The movable plate 83 is slidably connected inside the groove. A spring telescopic rod 84 is snapped between the bottom end of the movable plate 83 and the top end of the collar 3. An insert rod 85 is embedded in the top end of the movable plate 83. An insertion hole 9 is provided at the bottom end of both the rotating block 4 and the rotating roller 51. The insert rod 85 is located inside the insertion hole 9. The top end of the insert rod 85 has an inclination angle (the inclination angle is 30-45 degrees, which can ensure smooth insertion and provide sufficient locking surface).

[0044] During use, when aligning the collar 3 and the connecting joint 2 during installation, if the collar 3 and the connecting joint 2 are tilted, this tilt will increase the gap between the bottom of the guide rod 81 and the outside of the connecting joint 2. Under the elastic force of the spring telescopic rod 84, it will drive the moving plate 83 to move. When the moving plate 83 moves, it will further drive the insertion rod 85 to move along the insertion hole 9, ultimately separating the insertion rod 85 from the rotating block 4 and the rotating roller 51. At this time, the locking structure is in the unlocked state and cannot fix the collar 3, the rotating block 4, and the rotating structure 5.

[0045] When the collar 3 and the connecting joint 2 are adjusted to be parallel to each other by external hoisting or adjustment device (which belongs to the prior art), the center points between the collar 3 and the connecting joint 2 will coincide, which will reduce the mating distance between the collar 3 and the connecting joint 2. In this case, the outer side of the connecting joint 2 will squeeze the ball 82 at the bottom of the guide rod 81. Because the ball 82 can reduce the friction between the guide rod 81 and the outer side of the connecting joint 2, under the squeezing action of the reduced distance, the guide rod 81 will slide upward along the round hole inside the collar 3. Since the top of the guide rod 81 and the moving plate 83 are locked together, when the guide rod 81 slides upward, it will simultaneously drive the moving plate 83 to move upward along the sliding groove inside the collar 3. At this time, the spring telescopic rod 84 between the bottom of the moving plate 83 and the top of the collar 3 will be squeezed and stretched.

[0046] The insertion rod 85 embedded at the top of the moving plate 83 moves upward synchronously with the moving plate 83. Moreover, since the top of the insertion rod 85 has an inclined angle, it can avoid jamming between the insertion rod 85 and the insertion hole 9 at the bottom of the rotating block 4 and the rotating roller 51. Driven by the moving plate 83, the insertion rod 85 can be smoothly inserted into the insertion hole 9. When the insertion rod 85 is fully inserted into the insertion hole 9, the collar 3 is rigidly locked with the rotating block 4 and the rotating structure 5 (rotating roller 51) through mechanical limiting, thereby ensuring that the three can move synchronously during use and meet the connection stability requirements of the mud discharge pipe tail pipe.

[0047] Working principle: All components of the device are in a state of being ready to be connected. The collar 3 and the connecting joint 2 are tilted. The locking structure is in an unlocked state. The insertion rod 85 is separated from the insertion hole 9 of the rotating block 4 and the rotating roller 51.

[0048] Next, rotate the rotating block 4. When the rotating block 4 rotates, it drives the arc strip 813 to rotate. The rotating arc strip 813 first squeezes the metal sheet 814 to deform it. When the metal sheet 814 enters the second placement hole, it is embedded in the hole under tension. This process is repeated. The rotation of the rotating block 4 is limited by the cooperation between the metal sheet 814 and the placement hole.

[0049] When the serrated arc-shaped strip 813 rotates, it meshes with the gear 88, causing the gear 88 to rotate. The rotation of the gear 88 causes the rack 89 to move. The rack 89 drives the magnet 811 to move through the connecting plate 810, so that the magnet 811 corresponds with the iron block 53. With the help of magnetic attraction, the iron block 53 drives the rotating roller 51 to rotate through the column 52, thereby making the lead screws 6 in the two rotating rollers 51 correspond, realizing the pre-fixation of the rotating structure 5 and the rotating block 4, which facilitates the subsequent connection of the ring 7 and the lead screw 6.

[0050] With the rotating structure 5 and rotating block 4 pre-fixed, and the collar 3 locked to the rotating block 4 and rotating structure 5, the mounting ring 7 is connected to the screw rod 6 by thread to further fix the position of the rotating structure 5 and rotating block 4, thus completing the quick connection of the entire large sludge discharge pipe tail pipe, which can then be put into sludge discharge operation.

[0051] Next, with the help of external hoisting, the collar 3 and the connecting joint 2 are driven to connect with the connecting pipe 1. After the connection, the collar 3 and the connecting joint 2 are adjusted to be parallel to each other, so that their center points coincide and the relative distance between the collar 3 and the connecting joint 2 is reduced.

[0052] The outer side of the connecting joint 2 presses the ball 82 at the bottom of the guide rod 81, which reduces friction. The guide rod 81 slides upward along the inner round hole of the collar 3, which drives the moving plate 83 to move upward along the slide groove. The spring telescopic rod 84 is compressed and stretched.

[0053] The upward movement of the moving plate 83 causes the insertion rod 85 to move upward. The tilt angle of the top of the insertion rod 85 avoids jamming and smoothly inserts into the insertion hole 9 at the bottom of the rotating block 4 and the rotating roller 51. The mechanical limit achieves rigid locking between the collar 3, the rotating block 4, and the rotating structure 5, ensuring that the three move synchronously.

[0054] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it.

Claims

1. A large scale sewer pipe tail pipe quick coupling device, characterized in that, The utility model relates to a connecting pipe (1) is connected to the connecting pipe (1) bottom end as the mounting structure of connecting device, is used for guiding the flow of silt to the connecting joint (2) fixedly connected to the connecting pipe (1) bottom end, is used for increasing the connecting point of connecting joint (2) outside the sleeve ring (3) of setting up in connecting joint (2) outer surface, two the rotation block (4) of setting up is rotated and is connected in the sleeve ring (3) inside, the rotation structure (5) of rotating and being connected in the rotation block (4) inside, the screw rod (6) of being connected in the rotation structure (5) middle part through thread, the mounting ring (7) of being connected in the screw rod (6) outer surface through thread, the position of rotation structure (5) and rotation block (4) is kept fixed through the screw rod (6), the pre-fixing structure and the locking structure of stable assembly, pre-fixing structure is set up in the sleeve ring (3) inside, makes the position of rotation block (4) after rotating fixed, and makes two rotation structure (5) relative, thereby facilitating the butt joint of two screw rods (6), the locking structure is set up below pre-fixing structure, when sleeve ring (3) and connecting joint (2) are inclined, locking structure can not be fixed between sleeve ring (3) and rotation block (4), rotation structure (5), when sleeve ring (3) and connecting joint (2) axis line coincide, locking structure is locked between sleeve ring (3) and rotation block (4), rotation structure (5) fixed, the rotation roller (51) of the rotation structure (5) is rotated and is connected in the rotation block (4) inside, the vertical column (52) of welding in the rotation roller (51) top end and bottom end, the iron block (53) of clamping installation is installed on the vertical column (52) outside, the pre-fixing structure includes the positioning plate (86), the positioning plate (86) fixed mounting is in sleeve ring (3), the limiting strip (87) of clamping installation is installed in the positioning plate (86) top end, the gear (88) of rotating and being connected has in the positioning plate (86) top end at the limiting strip (87) bottom end position, the rack (89) of meshing connection has in the gear (88) outside, the connecting plate (810) of clamping installation has one end in the rack (89), the convex strip (812) of embedding installation has one end in the connecting plate (810), the magnet (811) of embedding installation has in the connecting plate (810) bottom end, the locking structure includes the guide rod (81), the guide rod (81) sliding connection is in the sleeve ring (3) inside, the ball (82) of embedding installation has in the guide rod (81) bottom end, the moving plate (83) of clamping installation has in the guide rod (81) top end, the spring telescopic rod (84) of clamping installation has between the moving plate (83) bottom end and the sleeve ring (3) top end, the plug rod (85) of embedding installation has in the moving plate (83) top end, the metal sheet (814) of symmetrical welding has in the limiting strip (87) inner wall, the arc strip (813) of sleeve joint has in the metal sheet (814) outside, the welding connection of arc strip (813) both ends and sleeve ring (3) outside between welding connection. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2. The large sewer pipe tailpiece quick connect device of claim 1, wherein, ​ 3. The large sewer pipe tailpiece quick connect device of claim 1, wherein, The rotating block (4) and the bottom end of the rotating roller (51) are provided with insertion holes (9), the insertion rod (85) is located inside the insertion hole (9), and the top end of the insertion rod (85) is provided with an inclined angle.

4. The large sewer pipe tailpiece quick connect device of claim 2, wherein, The number of the arc-shaped strips (813) is two, one of which is provided with a sawtooth on the outer side, and the sawtooth on the outer side of the arc-shaped strip (813) is engaged with the outer side of the gear (88).

5. The large sewer pipe tailpiece quick connect device of claim 1, wherein, The convex strip (812) is slidingly connected inside the positioning plate (86), and the positioning plate (86) is provided with a positioning hole corresponding to one end of the convex strip (812) inside.

6. A large sewer pipe tailpiece quick connection device according to claim 5, characterized in that, The bottom end of the positioning plate (86) is welded with a supporting column, and the bottom end of the supporting column and the top end of the sleeve ring (3) are fixedly connected.

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