Auxiliary device for installing drainage pipe

Abstract

The invention relates to the technical field of drainage pipe installation, in particular to a drainage pipe installation auxiliary device which comprises a first positioning ring and a second positioning ring, a fixing rod is fixed between the first positioning ring and the second positioning ring, and the first positioning ring and the second positioning ring are concentrically arranged. A plurality of first abutting rods and second abutting rods which are circumferentially distributed penetrate through the inner wall of the first positioning ring and the inner wall of the second positioning ring correspondingly, the first abutting rods and the second abutting rods are connected with a driving mechanism, the driving mechanism is used for driving the first abutting rods and the second abutting rods to be synchronously close to or away from each other, and balls are connected to the ends of the second abutting rods in a rolling mode; wherein the balls are connected with a fixing mechanism, and the fixing mechanism is used for fixing the balls; according to the drainage pipe, the whole process of positioning, butt joint and fixing is assisted, and the coaxiality, efficiency and operation stability of pipeline installation are remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of drainage pipe installation technology, specifically to an auxiliary device for drainage pipe installation. Background Technology

[0002] Drainage pipes are piping systems used to collect and transport domestic sewage, industrial wastewater, and rainwater. They are usually made of corrosion-resistant materials such as PVC and cast iron. Their design and installation are crucial to building function and environmental hygiene. During installation, various auxiliary devices are often required to ensure project quality and efficiency.

[0003] Existing technologies mainly rely on manual visual inspection and adjustment to connect two drainage pipes. This method is difficult to guarantee the precise coaxiality of the pipes and is prone to problems such as misalignment and uneven gaps. Furthermore, when inserting the pipe to be installed into the socket or connecting it, there will be significant friction between the pipe wall and the support. This not only makes the pushing operation very laborious and increases the labor intensity of workers, but may also cause the pipe angle to deviate due to uneven force, thus destroying the initial alignment effect. Summary of the Invention

[0004] The purpose of this invention is to provide an auxiliary device for installing drainage pipes to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A drain pipe installation auxiliary device includes a first positioning ring and a second positioning ring. A fixing rod is fixed between the first positioning ring and the second positioning ring, and the first positioning ring and the second positioning ring are concentrically arranged. A plurality of first abutments and second abutments are respectively circumferentially distributed through the inner walls of the first positioning ring and the second positioning ring. The first abutments and the second abutments are connected to a driving mechanism, which is used to drive the first abutments and the second abutments to move closer or further away synchronously. A ball bearing is rolledly connected to the end of the second abutment, wherein the ball bearing is connected to a fixing mechanism, which is used to fix the ball bearing.

[0007] Preferably, the driving mechanism includes a rotating ring disposed inside the first positioning ring and the second positioning ring. The rotating ring is connected to a rotating assembly, which drives the rotating ring to rotate. Multiple movable rods distributed in a circular pattern are rotatably connected to the inner wall of the rotating ring. The other end of each movable rod is rotatably connected to the end of the first or second abutment rod. An arc-shaped limiting block is fixed to the outer wall of the rotating ring. Arc-shaped limiting grooves are provided on the inner walls of the first and second positioning rings. The arc-shaped limiting blocks are located inside the arc-shaped limiting grooves and are slidably connected to the inner wall of the arc-shaped limiting grooves.

[0008] Preferably, the rotating assembly includes a plurality of teeth evenly distributed on the outer wall of the rotating ring, the teeth meshing with a gear, a rotating rod passing through the inside of the gear, the rotating ring passing through the outer walls of the first positioning ring and the second positioning ring and being rotatably connected to both, the rotating rod being connected to a positioning component, the positioning component being used to position the rotating rod.

[0009] Preferably, the positioning component includes a positioning disk fixed to the outside of the rotating rod, a first pin passing through the inside of the positioning disk, the first pin being connected to the side wall of the positioning disk by a first spring, wherein the side wall of the second positioning ring is provided with a first pin groove that is circumferentially distributed and adapted to the first pin.

[0010] Preferably, the fixing mechanism includes a groove disposed inside the second abutment, a stop block slidably connected inside the groove, an airbag provided on the side of the stop block, an inflation component connected to the airbag, and the inflation component being used to inflate the airbag.

[0011] Preferably, the inflation assembly includes multiple fixed plates that are fixedly connected to the inner wall of the second positioning ring and are distributed in a circular pattern. A pressure cylinder is fixed on the side wall of the fixed plate. The pressure cylinder is connected to an air pipe. The other end of the air pipe is connected to an air bag. A pressure rod passes through one end of the pressure cylinder. A compression ring is fixed to the end of the pressure rod. A pushing component is connected to the compression ring. The pushing component is used to push the compression ring.

[0012] Preferably, the pushing component includes push rods fixedly connected to the side wall of the extrusion ring and symmetrically distributed, guide cylinders symmetrically distributed are fixed on the side wall of the second positioning ring, the push rods pass through the side wall of the second positioning ring and the guide cylinders and are slidably connected to both, a push plate is fixed to the end of the push rod, the push plate is connected to the end of the guide cylinder through a second spring, a second pin passes through the side wall of the guide cylinder, the second pin is connected to the outer wall of the guide cylinder through a third spring, and a second pin groove adapted to the second pin is provided on the side wall of the push rod.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: the drainage pipe installation auxiliary device, through the concentrically arranged first and second positioning rings and the linkage drive mechanism, can synchronously radially press the main drainage pipe and the drainage pipe to be installed, ensuring that the two are accurately aligned. In addition, the end of the second abutment rod is connected with a ball bearing, which can effectively reduce friction during advancement and facilitate the advancement of the drainage pipe. After the drainage pipe is aligned, the ball bearing is fixed by the fixing mechanism, which can fix the drainage pipe to be installed and prevent it from shifting. It realizes the assistance of the whole process from positioning and alignment to fixing, which significantly improves the coaxiality, efficiency and operation stability of pipe installation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure in an embodiment of the present invention.

[0015] Figure 2This is a schematic diagram of the internal structure of the first positioning ring and the second positioning ring in an embodiment of the present invention.

[0016] Figure 3 This is a schematic diagram of the second abutment connection structure in an embodiment of the present invention.

[0017] Figure 4 for Figure 1 Enlarged view of point A in the middle.

[0018] Figure 5 for Figure 2 Enlarged view of section B in the middle.

[0019] Figure 6 This is a cross-sectional view of the internal structure of the second abutment in an embodiment of the present invention.

[0020] In the diagram: 1-First positioning ring, 2-Second positioning ring, 3-Fixing rod, 4-First abutment rod, 5-Second abutment rod, 6-Drive mechanism, 61-Rotating rod, 62-Gear, 63-Tooth, 64-Rotating ring, 65-Arc-shaped limiting block, 66-Moving rod, 67-Positioning disc, 68-First pin, 69-First pin groove, 610-First spring, 71-Air pipe, 72-Fixing plate, 7-Fixing mechanism, 73-Pneumatic cylinder, 74-Pneumatic rod, 75-Compression ring, 76-Abutment block, 77-Airbag, 78-Guide cylinder, 79-Second pin, 710-Second pin groove, 711-Push rod, 712-Push plate, 713-Second spring, 714-Third spring, 8-Ball bearing. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0022] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0023] In one embodiment, see Figures 1-3 A drain pipe installation auxiliary device includes a first positioning ring 1 and a second positioning ring 2. A fixing rod 3 is fixed between the first positioning ring 1 and the second positioning ring 2, and the first positioning ring 1 and the second positioning ring 2 are concentrically arranged. A plurality of first abutment rods 4 and second abutment rods 5 are respectively circumferentially distributed through the inner walls of the first positioning ring 1 and the second positioning ring 2. The first abutment rods 4 and the second abutment rods 5 are connected to a driving mechanism 6, which is used to drive the first abutment rods 4 and the second abutment rods 5 to move closer or further away synchronously. A ball bearing 8 is rolledly connected to the end of the second abutment rod 5, wherein the ball bearing 8 is connected to a fixing mechanism 7, which is used to fix the ball bearing 8.

[0024] In this embodiment, when using the drain pipe installation auxiliary device, the first positioning ring 1 is sleeved on the outside of the main drain pipe. Then, the driving mechanism 6 drives the first abutment 4 inside the first positioning ring 1 to move closer simultaneously, and drives the second abutment 5 inside the second positioning ring 2 to move closer simultaneously. When the end of the first abutment 4 is tightly attached to the side wall of the main drain pipe, it fixes the first positioning ring 1. Then, the drain pipe to be installed can be passed through the inside of the second positioning ring 2 until the end of the drain pipe to be installed is tightly attached to the end of the main drain pipe. Then, the two drain pipes can be installed. Since the first positioning ring 1 and the second positioning ring 2 are fixedly connected by the fixing rod 3, and the first positioning ring 1 and the second positioning ring 2 are concentric, the main drain pipe and the drain pipe to be installed can be aligned, ensuring the installation effect of the drain pipe. Furthermore, the end of the second abutment 5 is rotatably connected with a ball bearing 8. The ball bearing 8 reduces the friction between the second abutment 5 and the drain pipe to be installed, facilitating the advancement of the drain pipe. After the ends of the two drain pipes are attached, the device is fixedly connected to the side wall of the main drain pipe. The fixing mechanism 7 secures the ball bearing 8, thus restricting its rotation and providing a fixation for the drain pipe to be installed. This improves the stability of the drain pipe and ensures stability during installation. After the drain pipe is installed, the drive mechanism 6 moves the first abutment 4 and the second abutment 5 away from each other, simultaneously releasing the fixing mechanism 7 from the ball bearing 8. Then, the first positioning ring 1 and the second positioning ring 2 can be removed from the uninstalled end of the drain pipe. This drain pipe installation auxiliary device, through the concentrically arranged first positioning ring 1 and second positioning ring 2, and in conjunction with the drive mechanism 6, can synchronously radially press the main drain pipe and the drain pipe to be installed, ensuring precise alignment. Furthermore, the ball bearing 8 is rolled at the end of the second abutment 5, effectively reducing friction during advancement and facilitating the advancement of the drain pipe. After the drain pipe is aligned, the fixing mechanism 7 secures the ball bearing 8, thus fixing the drain pipe to be installed and preventing its displacement. This completes the entire process of positioning, alignment, and fixing, significantly improving the coaxiality, efficiency, and operational stability of the pipe installation.

[0025] Please see Figure 2 and Figure 3 The driving mechanism 6 includes a rotating ring 64 disposed inside the first positioning ring 1 and the second positioning ring 2. The rotating ring 64 is connected to a rotating assembly, which is used to drive the rotating ring 64 to rotate. Multiple movable rods 66 distributed in a circle are rotatably connected to the inner wall of the rotating ring 64. The other end of the movable rod 66 is rotatably connected to the end of the first abutment 4 or the second abutment 5. An arc-shaped limiting block 65 is fixed on the outer wall of the rotating ring 64. Arc-shaped limiting grooves are provided on the inner walls of the first positioning ring 1 and the second positioning ring 2. The arc-shaped limiting block 65 is located inside the arc-shaped limiting groove and is slidably connected to the inner wall of the arc-shaped limiting groove.

[0026] During the installation of the drain pipe, the operator drives the rotating ring 64 to rotate inside its positioning ring by rotating the assembly. Since the inner wall of the rotating ring 64 is rotatably connected to the end of the first abutment 4 or the second abutment 5 through the movable rod 66, forming a set of circumferentially distributed crank-slider mechanism, when the rotating ring 64 rotates, it will push all the first abutment 4 and the second abutment 5 through the movable rod 66 until the end of the first abutment 4 is tightly attached to the side wall of the main drain pipe, thereby fixing the first positioning ring 1 and the second positioning ring 2. The arc-shaped limiting block 65 on the outer wall of the rotating ring 64 slides with the arc-shaped limiting groove on the inner wall of the positioning ring. This design not only ensures that the rotating ring 64 can rotate stably and smoothly, but also strictly limits its axial displacement, preventing the mechanism from shifting or jamming when under force.

[0027] Please see Figure 2 The rotating assembly includes a plurality of teeth 63 that are equidistantly distributed on the outer wall of the rotating ring 64. The teeth 63 mesh with a gear 62. A rotating rod 61 passes through the inside of the gear 62. The rotating ring 64 passes through the outer walls of the first positioning ring 1 and the second positioning ring 2 and is rotatably connected to them. The rotating rod 61 is connected to a positioning component, which is used to position the rotating rod 61.

[0028] During the installation of the drain pipe, the operator rotates the rotating rod 61, which drives the gear 62 fixed on it to rotate synchronously. The gear 62 meshes with the teeth 63 that are equidistantly fixed on the outer circumference of the rotating ring 64, thereby causing the entire rotating ring 64 to rotate around its axis. When the end of the first abutment rod 4 is tightly fitted with the side wall of the main drain pipe, the rotating rod 61 is locked by the positioning component, which can fix the rotating ring 64 in the required position and prevent it from retracting due to the reaction force of the pipe, thereby maintaining a stable clamping state.

[0029] Please see Figure 5 The positioning component includes a positioning disk 67 fixed outside the rotating rod 61. A first pin 68 passes through the inside of the positioning disk 67. The first pin 68 is connected to the side wall of the positioning disk 67 by a first spring 610. The side wall of the second positioning ring 2 is provided with a first pin groove 69 that is circumferentially distributed and adapted to the first pin 68.

[0030] During drain pipe installation, the operator rotates the rotating rod 61, and the rotating ring 64 is driven to the target position by the gear 62. The positioning plate 67 installed on the rotating rod 61 also rotates to a specific angle. At this time, under the preload of the first spring 610, the first pin 68 is automatically pushed into the corresponding first pin groove 69 on the second positioning ring 2 on the side of the positioning plate 67. This pin insertion action directly prevents the positioning plate 67 and the rotating rod 61 from rotating further, thereby locking the entire gear 62-rotating ring 64 transmission chain, effectively preventing accidental rotation caused by pipeline reaction force or vibration. When it is necessary to unlock, the operator only needs to overcome the tension of the first spring 610 and manually pull the first pin 68 out of the pin groove, and then rotate the rotating rod 61 again for adjustment.

[0031] Please see Figure 3 and Figure 6 The fixing mechanism 7 includes a groove inside the second abutment 5, abutment block 76 is slidably connected inside the groove, an airbag 77 is provided on the side of the abutment block 76, and an inflation component is connected to the airbag 77 for inflating the airbag 77.

[0032] When it is necessary to fix the aligned pipe to be installed, the inflation component inflates the air bladder 77. The pressure generated by the expansion of the air bladder 77 pushes the connected abutment block 76 to slide in the groove. The abutment block 76 presses the ball bearing 8, thereby restricting its free rotation. This locks the pipe through friction, improving the stability of the drainage pipe to be installed and ensuring the stability of the drainage pipe during the installation process.

[0033] Please see Figure 3 The inflation assembly includes multiple fixed plates 72 that are fixedly connected to the inner wall of the second positioning ring 2 and are distributed in a circular pattern. A pressure cylinder 73 is fixed on the side wall of the fixed plate 72. The pressure cylinder 73 is connected to an air pipe 71. The other end of the air pipe 71 is connected to an airbag 77. A pressure rod 74 passes through one end of the pressure cylinder 73. A compression ring 75 is fixed to the end of the pressure rod 74. A pushing component is connected to the compression ring 75. The pushing component is used to push the compression ring 75.

[0034] When it is necessary to fix the aligned pipe to be installed, the operator drives the compression ring 75 to move axially by pushing the component. The compression ring 75 is connected or in contact with the ends of multiple pneumatic rods 74 that are distributed in a circle, so that all the pneumatic rods 74 can be pushed synchronously into the pneumatic cylinder 73. The advancement of the pneumatic rods 74 will compress the gas in the pneumatic cylinder 73. The gas is transmitted to each corresponding air bag 77 through the air pipe 71 connected to it, causing all the air bags 77 to expand synchronously and uniformly. The expansion of the air bags 77 will then push their respective corresponding abutment blocks 76 to move, and finally achieve synchronous locking of all the balls 8 on the circumference.

[0035] Please see Figure 4 The pushing component includes push rods 711 that are fixedly connected to the side wall of the compression ring 75 and are symmetrically distributed. Guide cylinders 78 that are symmetrically distributed are fixed on the side wall of the second positioning ring 2. The push rods 711 pass through the side wall of the second positioning ring 2 and the guide cylinders 78 and are slidably connected to both. A push plate 712 is fixed to the end of the push rods 711. The push plate 712 is connected to the end of the guide cylinder 78 through a second spring 713. A second pin 79 passes through the side wall of the guide cylinder 78. The second pin 79 is connected to the outer wall of the guide cylinder 78 through a third spring 714. A second pin groove 710 that matches the second pin 79 is provided on the side wall of the push rods 711.

[0036] When it is necessary to fix the aligned pipe to be installed, the operator presses the push plate 712. The push plate 712 drives the compression ring 75 fixed thereto to move axially through the push rod 711, thereby compressing each air cylinder 73. When the compression ring 75 moves to the target position (i.e. the airbag 77 is fully inflated and the ball bearing 8 is locked), the second pin 79 installed on the side wall of the guide cylinder 78 will automatically spring into the second pin groove 710 on the side wall of the push rod 711 under the action of the third spring 714, mechanically locking the push rod 711 at the current stroke, thereby maintaining the inflation pressure and locking state of the airbag 77. When it is necessary to unlock, simply pull out the second pin 79, and the restoring force of the second spring 713 will push the push rod 711, the push plate 712 and the compression ring 75 to reset. The airbag 77 will then deflate and contract, releasing the fixation of the ball bearing 8.

[0037] Working principle: When using this drain pipe installation auxiliary device, firstly, the concentrically arranged first positioning ring 1 is placed around the main drain pipe. The operator rotates the rotating rod 61, and the gear 62 on the rotating rod 61 meshes with the teeth 63 on the rotating ring 64, thereby driving the rotating ring 64 to rotate. The rotating ring 64 drives all the first abutment rods 4 and second abutment rods 5 to move radially inward through the movable rod 66, so that the first abutment rods 4 press against the main drain pipe. At the same time, the first pin 68 will automatically spring into the first pin groove 69 on the side of the second positioning ring 2, thereby locking the rotating rod 61 and preventing it from retracting. Then, the drain pipe to be installed is pushed into the inner wall of the second positioning ring 2, where it contacts the ball bearing 8 at the end of the second abutment rod 5. The rolling friction makes the push more efficient. Effortless installation: Once the two pipe openings are aligned and fitted, the operator presses the push plate 712. The push rod 711 moves the compression ring 75 inward, simultaneously pushing multiple pneumatic rods 74 to compress the air in the pneumatic cylinder 73. The gas passes through the air pipe 71, causing the air bladders 77 in each of the second abutment rods 5 to expand, pushing the abutment block 76 to press the ball bearing 8 so that it cannot rotate, thus firmly locking the drain pipe to be installed. At this time, the second pin 79 on the side wall of the guide cylinder 78 will automatically enter the second pin groove 710 under the action of the third spring 714, thus maintaining the locked state. The entire process, through two simple rotation and pressing operations, achieves precise centering, temporary fixation, and effortless connection of the two pipes, significantly improving the accuracy, efficiency, and stability of the installation.

[0038] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A drain pipe installation auxiliary device, comprising a first positioning ring and a second positioning ring; characterized in that, A fixing rod is fixed between the first positioning ring and the second positioning ring, and the first positioning ring and the second positioning ring are concentrically arranged. Multiple first abutments and second abutments are respectively circumferentially distributed through the inner walls of the first positioning ring and the second positioning ring. The first abutments and the second abutments are connected to a driving mechanism, which is used to drive the first abutments and the second abutments to move closer or further away synchronously. A ball is rotatably connected to the end of the second abutment, and the ball is connected to a fixing mechanism, which is used to fix the ball.

2. The drainage pipe installation auxiliary device according to claim 1, characterized in that, The driving mechanism includes a rotating ring disposed inside the first positioning ring and the second positioning ring. The rotating ring is connected to a rotating assembly, which drives the rotating ring to rotate. Multiple movable rods distributed in a circular pattern are rotatably connected to the inner wall of the rotating ring. The other end of each movable rod is rotatably connected to the end of the first or second abutment rod. An arc-shaped limiting block is fixed to the outer wall of the rotating ring. Arc-shaped limiting grooves are provided on the inner walls of the first and second positioning rings. The arc-shaped limiting blocks are located inside the arc-shaped limiting grooves and are slidably connected to the inner wall of the arc-shaped limiting grooves.

3. The drainage pipe installation auxiliary device according to claim 2, characterized in that, The rotating assembly includes multiple teeth evenly distributed on the outer wall of the rotating ring, which mesh with gears. A rotating rod passes through the inside of the gears. The rotating ring passes through the outer walls of the first positioning ring and the second positioning ring and is rotatably connected to them. The rotating rod is connected to a positioning component, which is used to position the rotating rod.

4. The drainage pipe installation auxiliary device according to claim 3, characterized in that, The positioning component includes a positioning disk fixed to the outside of the rotating rod. A first pin passes through the inside of the positioning disk. The first pin is connected to the side wall of the positioning disk by a first spring. The side wall of the second positioning ring is provided with a first pin groove that is circumferentially distributed and adapted to the first pin.

5. The drainage pipe installation auxiliary device according to claim 1, characterized in that, The fixing mechanism includes a groove inside the second abutment, a stop block slidably connected inside the groove, an airbag on the side of the stop block, and an inflation component connected to the airbag for inflating the airbag.

6. The drainage pipe installation auxiliary device according to claim 5, characterized in that, The inflation assembly includes multiple fixed plates that are fixedly connected to the inner wall of the second positioning ring and are distributed in a circular pattern. A pressure cylinder is fixed on the side wall of the fixed plate. The pressure cylinder is connected to an air pipe. The other end of the air pipe is connected to an air bag. A pressure rod passes through one end of the pressure cylinder. A compression ring is fixed to the end of the pressure rod. A pushing component is connected to the compression ring. The pushing component is used to push the compression ring.

7. The drainage pipe installation auxiliary device according to claim 6, characterized in that, The pushing component includes push rods fixedly connected to the side wall of the extrusion ring and symmetrically distributed. Guide cylinders symmetrically distributed are fixed on the side wall of the second positioning ring. The push rods pass through the side wall of the second positioning ring and the guide cylinders and are slidably connected to both. A push plate is fixed to the end of the push rod. The push plate is connected to the end of the guide cylinder through a second spring. A second pin passes through the side wall of the guide cylinder. The second pin is connected to the outer wall of the guide cylinder through a third spring. A second pin groove adapted to the second pin is provided on the side wall of the push rod.

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