Branch pipeline repairing device

Abstract

The utility model belongs to the technical field of repairing of the joint of a main pipeline and a branch pipeline, and particularly discloses a repairing device for the branch pipeline, which is used for repairing the branch pipeline joint of the main pipeline and the branch pipeline and comprises a contraction adhesive injection tape and an expansion air bag. According to the utility model, the contraction glue injection ring is formed by coiling the contraction glue injection tape along the circumferential direction of the main pipeline, then the contraction glue injection ring is plugged into the main pipeline, one part of the expansion air bag extends into the branch pipeline, then the rack is tensioned, the rack walks on the gear, the contraction glue injection ring is tightly attached to the inner wall of the main pipeline, and then the expansion air bag is inflated; the expansion air bag is in an air state until the expansion air bag is full, the glue injection gun extrudes the expansion air bag, the expansion air bag, the inner wall of the branch pipeline and the contraction glue injection ring form a closed cavity, finally glue is injected into the closed cavity through the glue injection opening assembly and the first glue injection hole to form a glue injection layer, and the glue injection layer can form a good sealing effect with the joint. The connection strength and the matching degree are high.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the main pipe and branch pipe connection place repair technical field, specifically related to a pipeline branch pipe repair device. BACKGROUND

[0002] Pipeline branch pipe repair technology refers to a series of technical methods for repairing the branch pipe part in the pipeline system without excavating the ground. These technologies are usually used in drainage, water supply or gas pipelines in urban infrastructure to solve the problems of pipeline aging, corrosion, rupture or other structural problems. The purpose of branch pipe repair technology is to restore the integrity and function of the pipeline, reduce the impact on traffic and the environment, and reduce the repair cost.

[0003] Currently, pipeline branch pipe repair mainly sends a new pipe piece with a diameter slightly smaller than the old pipe into the old pipe damage place, and then pushes the old pipe fragments back to the original position. The strength of the new pipe piece is sufficient to maintain the structural shape of the old pipe. In the past, it was also necessary to do so in order to connect the branch pipe, but a pit had to be excavated from the outside to access the work site.

[0004] The above scheme has the problem of connection between the new branch pipe and the new main pipe, such as the connection strength and matching degree of the two, which are problems to be considered, and are very cumbersome. INVENTION CONTENTS

[0005] The utility model provides a pipeline branch pipe repair device, can promote the connection strength between branch pipe and main pipe, and can repair fast.

[0006] The technical problems solved by the utility model are solved by the following technical solutions:

[0007] A pipeline branch pipe repair device is used for repairing the branch pipe joint of a main pipe and a branch pipe, comprising a shrinkable glue injection belt and an inflatable air bag, the shrinkable glue injection belt is wound into a shrinkable glue injection ring along the circumferential direction of the main pipe;

[0008] The shrinkable glue injection ring has a first glue injection hole and an inflatable air bag setting position, the inflatable air bag setting position corresponds to the branch pipe joint, and the inflatable air bag is arranged on the inflatable air bag setting position;

[0009] When the glue injection gun is inserted into the branch pipe joint through the first glue injection hole, the inflatable air bag is extruded by the glue injection gun, so that the inflatable air bag, the inner wall of the branch pipe and the shrinkable glue injection ring form a closed cavity, the closed cavity is used for injecting glue into the closed cavity through the first glue injection hole to form a glue injection layer, and the branch pipe joint is sealed and connected.

[0010] Preferably, the shrink injection belt comprises an injection plate, the injection plate has a length direction and a width direction, and the injection plate is fixedly connected with a shrink rack and a limiting assembly limiting the shrink rack respectively, and the shrink rack and the limiting assembly are located at two ends of the injection plate respectively, the limiting assembly extends along the width direction, and the shrink rack extends along the length direction.

[0011] Preferably, the shrink rack and the injection plate form a ring along the circumferential direction of the main pipeline, and the end of the shrink rack is inserted into the limiting assembly along the circumferential direction of the main pipeline and is inserted into the rack limiting ring arranged along the length direction.

[0012] Preferably, the shrink injection belt is fixedly connected with a plurality of rack limiting rings along the length direction.

[0013] Preferably, the shrink injection belt has a height direction, the limiting assembly comprises a fixed plate, a gear, an adjusting knob and a rotating shaft, the fixed plate is installed at the end of the shrink injection belt, the gear has a cavity in the interior, the rotating shaft is rotatably installed in the cavity along the height direction, the gear is sleeved on the rotating shaft, one end of the rotating shaft penetrates through and extends out of the fixed plate, and the adjusting knob is sleeved on the part of the rotating shaft extending out of the fixed plate; the shrink rack penetrates through the fixed plate and is engaged with the gear.

[0014] Preferably, a brake mechanism is arranged in the cavity and corresponds to the teeth of the gear, and is used for engaging with the gear to brake the gear and limit the shrink rack from walking on the gear, so as to change the diameter of the shrink injection ring.

[0015] Preferably, the brake mechanism comprises a gear brake tooth and a spring, the gear brake tooth is slidingly installed in the cavity and extends along the width direction, the spring is arranged in the cavity and extends along the width direction, one end of the spring is connected with the gear brake tooth, and the other end of the spring is connected with the side wall of the cavity.

[0016] Preferably, a second rack through hole is formed in the fixed plate, the second rack through hole is also communicated with the cavity, and the gear is engaged with the shrink rack penetrating through the second rack through hole.

[0017] Preferably, an injection port assembly is installed on the injection plate, the injection port assembly corresponds to the first injection hole, and the injection port assembly is located near the setting position of the inflatable air bag.

[0018] Preferably, the glue injection port assembly comprises a glue injection port blocking plate and a sliding groove plate, the sliding groove plate is fixed on the glue injection plate, the glue injection port blocking plate is sleeved on the sliding groove plate, the sliding groove plate has a sliding hole, and the sliding hole is changed into a second glue injection hole by sliding of the glue injection port blocking plate on the sliding groove plate.

[0019] The utility model discloses the beneficial effect is:

[0020] (1), the utility model discloses mainly utilize the shrinkage glue injection tape and be rolled into the shrinkage glue injection ring along the circumferential direction of main pipeline, then be inserted into main pipeline, and make the part of expansion air bag enter branch pipeline, then tighten the shrinkage rack, make the shrinkage rack walk on the gear, and make the shrinkage glue injection ring and main pipeline inner wall close, then inflate the expansion air bag, make the expansion air bag present the gas state until the state of fullness, when the glue injection gun passes through the first glue injection hole and enters the branch pipe joint, the glue injection gun extrudes the expansion air bag, and the expansion air bag, the inner wall of branch pipeline and shrinkage glue injection ring form the closed cavity, finally through the glue injection port assembly and the first glue injection hole glue injection in the closed cavity forms the glue injection layer, and the glue injection layer can form the good sealing effect with the junction, and the connecting strength is strong, and the matching degree is high.

[0021] (2), the utility model discloses can operate under the condition of not stopping water or the condition of small water flow, namely only satisfy the shrinkage glue injection ring can support in main pipeline, to prevent the water flow too big and wash away the shrinkage glue injection ring, thereby can realize quick repair, reduce the influence supply water or drainage time, improve the efficiency.

[0022] (3), the device assembly or disassembly is convenient, thus can repair the junction between various main pipeline and branch pipeline at any time and anywhere, and the repair effect is excellent, and the application range is wide, and the repair cost is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is the structural schematic diagram of the utility model;

[0024] Figure 2 It is the sectional view along the radial direction of main pipeline of the utility model;

[0025] Figure 3 It is Figure 2 It is the structural schematic diagram of A part in the utility model;

[0026] Figure 4 It is the structural schematic diagram of the shrinkage glue injection ring in the utility model;

[0027] Figure 5 It is the structural schematic diagram of the shrinkage glue injection tape in the utility model;

[0028] Figure 6 It is the structural schematic diagram of the limiting assembly in the utility model;

[0029] Figure 7 It is structural schematic view of the connection of the shrinkable rack and the glue injection plate in the utility model;

[0030] Figure 8 It is structural schematic view of the engagement of the gear and the gear brake tooth in the utility model;

[0031] Figure 9 It is structural schematic view of the glue injection port assembly in the utility model;

[0032] Figure 10 It is schematic view of the position relation of the glue injection layer in the main pipeline and the branch pipeline.

[0033] In the drawing: main pipeline 1, branch pipeline 2, shrinkable glue injection belt 3, glue injection plate 31, inflation air bag mounting hole 311, shrinkable glue injection ring 4, inflation air bag 5, first glue injection hole 6, shrinkable rack 7, rack limiting ring 8, limiting assembly 9, fixed plate 91, rack through hole 911, gear 92, gear brake tooth 93, spring 94, adjusting knob 95, glass fiber layer 10, felt layer 11, PE layer 12, glue injection layer 13, glue injection port assembly 14, glue injection port plugging plate 141, sliding groove plate 142, sliding hole 1421, clamping strip limiting baffle 15, clamping limiting block 16. DETAILED DESCRIPTION

[0034] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific drawings.

[0035] As shown in Figures 1-10 A pipeline branch pipeline repairing device for repairing the branch joint of a main pipeline 1 and a branch pipeline 2 composed of a glass fiber layer 10, a felt layer 11 and a PE layer 12 from outside to inside, comprising a shrinkable glue injection belt 3, the shrinkable glue injection belt 3 is wound into a shrinkable glue injection ring 4 along the circumferential direction of the main pipeline 1,

[0036] The shrinkable glue injection ring 4 is provided with a first glue injection hole 6 and an inflation air bag setting position, i.e. an inflation air bag mounting hole 311, and the inflation air bag mounting hole 311 corresponds to the branch joint, and an inflation air bag 5 is arranged on the inflation air bag mounting hole 311;

[0037] When the glue injection gun extends into the branch pipe joint through the first glue injection hole 6, the glue injection gun extrudes the inflatable air bag, so that the inflatable air bag, the inner wall of the branch pipe and the shrinkage glue injection ring form a closed cavity, which is used for injecting glue into the closed cavity through the first glue injection hole 6 to form a glue injection layer 13, so as to seal the connection of the branch pipe joint (it should be noted that during the extrusion of the inflatable air bag 5 by the glue injection gun, the part of the inflatable air bag 5 extruded by the glue injection gun is deformed, which is similar to that when the gas inside the inflatable air bag 5 is constant, pressing any position of the inflatable air bag 5 will cause the position to be concave, so that the concave position and the branch pipe joint form a closed cavity). The shrinkage glue injection belt 3 includes a glue injection plate 31, the glue injection plate 31 has a length direction and a width direction, and the shrinkage toothed bar 7 and the limiting assembly 9 limiting the shrinkage toothed bar 7 are fixedly connected to the glue injection plate 31, specifically: the shrinkage toothed bar 7 and the glue injection plate 31 are made of bendable material, such as plastic, and the shrinkage toothed bar 7 is clamped on the glue injection plate 31 through the clamping limiting block 16, preventing the shrinkage toothed bar 7 from moving up and down, and the end of the shrinkage toothed bar 7 is fixed through the clamping limiting baffle 15; the purpose is to prevent the shrinkage toothed bar 7 from rotating left and right, and its main function is to support and fix the branch pipe opening where the branch pipe 2 is located according to the size of the repaired pipe diameter;

[0038] The limiting assembly 9 is also installed on the glue injection plate 31 through a screw, and the shrinkage toothed bar 7 and the limiting assembly 9 are located at both ends of the glue injection plate 31, the limiting assembly 9 extends along the width direction, and the shrinkage toothed bar 7 extends along the length direction. Specifically, according to actual needs, the number of shrinkage toothed bars 7 can be set to be multiple, and in this embodiment, two are set, and two are respectively arranged at both edges of one end of the glue injection plate 31;

[0039] The shrinkage glue injection belt 3 is fixedly connected with a plurality of toothed bar limiting rings 8 along the length direction, specifically: each toothed bar limiting ring 8 is fixed on the glue injection plate 31 through a screw, the shrinkage toothed bar 7 and the glue injection plate 31 form a ring along the circumferential direction of the main pipe 1, and the end of the shrinkage toothed bar 7 is inserted into the limiting assembly 9 along the circumferential direction of the main pipe 1 and is inserted into the toothed bar limiting ring 8 arranged along the length direction, and when the shrinkage toothed bar 7 is bent, the toothed bar limiting ring 8 limits the shrinkage toothed bar 7 to prevent the shrinkage toothed bar 7 from moving and deflecting.

[0040] The shrinkage glue injection belt 3 has a height direction, the limiting assembly 9 includes a fixed plate 91, a gear 92, an adjusting knob 95 and a rotating shaft, the fixed plate 91 is installed at the end of the shrinkage glue injection belt 3, the gear 92 has a cavity inside, the rotating shaft is rotatably installed in the cavity, the gear 92 is sleeved on the rotating shaft, the rotating shaft penetrates through and extends out of the fixed plate, the adjusting knob 95 is sleeved on the part of the rotating shaft extending out of the fixed plate 91, the shrinkage rack 7 penetrates through the fixed plate 91 and is engaged with the gear 92; it should be noted that in the limiting assembly 9, except that there is only one fixed plate 91, the remaining components are arranged according to the number of the shrinkage rack;

[0041] The cavity is provided with a brake mechanism corresponding to the teeth of the gear 92, which is used to engage with the gear 92 to brake the gear 92 and limit the shrinkage rack 7 from moving on the gear 92, so that the diameter of the shrinkage glue injection ring can be changed; specifically, the brake mechanism includes a gear brake tooth 93 and a spring 94, the gear brake tooth 93 is slidably installed in the cavity and extends in the width direction, the spring 94 is placed in the cavity and extends in the width direction, and one end of the spring 94 is connected with the gear brake tooth 93 and the other end is connected with the side wall of the cavity.

[0042] The fixed plate 91 is provided with a rack through hole 911, which is also communicated with the cavity, and the gear 92 is engaged with the shrinkage rack 7 penetrating through the rack through hole.

[0043] The above content is mainly realized in the following way: rotating the adjusting knob 95 to make the rotating shaft rotate, so that the gear 92 rotates, and the shrinkage rack 7 can move with the help of the gear 92, at the same time, the gear 7 is not in contact with the gear brake tooth 93 during rotation with the help of the spring 94, even if the size of the shrinkage glue injection ring 4 changes, when the use requirement is reached, the adjusting knob 95 is not rotated, the spring is elongated, the gear brake tooth 93 is engaged with the gear 92, because the gear brake tooth 93 cannot rotate, the gear 92 cannot rotate, finally the shrinkage rack 7 cannot move relative to the gear 92, so the size of the shrinkage glue injection ring 4 cannot be changed, that is, the limiting assembly 9 can release and lock the shrinkage rack 7, and the adjusting knob 95 can open and lock the limiting assembly 9, so as to open and lock the shrinkage rack 7, so that the shrinkage glue injection ring 4 meets the actual use requirement.

[0044] The glue injection plate 3 is provided with glue injection port assemblies 14 (it is to be noted that the number of glue injection port assemblies 14 is set according to actual use requirements, and in the embodiment, the number of glue injection port assemblies 14 is set to two, and the two glue injection port assemblies 14 are respectively arranged around the inflatable air bag mounting hole 311, and preferably, the glue injection port assemblies 14 are arranged in mirror image along the center of the cylinder mounting hole 311). Specifically, the glue injection port assemblies 14 are fixed on the glue injection plate 13 by screws, the glue injection port assemblies 14 correspond to the first glue injection hole 6, and the glue injection port assemblies 14 are located near the inflatable air bag mounting hole 311.

[0045] The glue injection port assembly 14 includes a glue injection port blocking plate 141 and a sliding groove plate 142. The sliding groove plate 142 is fixed on the glue injection plate 31, and the glue injection port blocking plate 141 is slidably connected to the sliding groove plate 142. The sliding groove plate 142 has a sliding hole 1421. The sliding hole 1421 is formed by sliding the glue injection port blocking plate 141 on the sliding groove plate 142 to form a second glue injection hole. The second glue injection hole corresponds to the first glue injection hole 6. The purpose is to inject glue into the closed cavity through the second glue injection hole and the first glue injection hole, then move the glue injection port blocking plate 141 and make the glue injection port blocking plate 141 slide on the sliding groove plate 142 to change the size of the second glue injection port, until the second glue injection port on the glue injection port blocking plate 141 is blocked, and until the glue solidifies.

[0046] The device repairs the connection between the branch pipe and the main pipe in the following way:

[0047] 1. First, insert the inflatable air bag 5 into the inflatable air bag mounting hole 311 in the shrinkable glue tape and fix it. Manually or mechanically wind the shrinkable glue tape 3 into a shrinkable glue ring 4 along the circumferential direction of the main pipe 1, that is, insert the shrinkable rack 7 into the rack through hole 911 and then into the rack limiting ring 8, so that the shrinkable glue tape 3 becomes a shrinkable glue ring 4.

[0048] 2、Secondly, the shrinkage glue injection ring 4 is inserted into the main pipeline 1 by the mechanical hand until it stops at the connection between the main pipeline 1 and the branch pipeline 2, then the mechanical hand is used to pull the shrinkage rack 7 to make it move relative to the glue injection plate 31 until the shrinkage glue injection ring 4 is attached to the inner wall of the main pipeline 1, and when the shrinkage rack 7 moves, it is engaged with the gear 92, so that the rotating shaft rotates, at the same time, the gear 7 is not in contact with the gear 7 in the rotating process under the assistance of the spring 94, that is, the size of the pipe diameter of the shrinkage glue injection ring 4 is changed, when it reaches the use requirement, the rotating adjusting knob 95 is not rotated, the spring is elongated, the gear 7 is engaged with the gear 92, because the gear 7 cannot rotate, the gear 92 cannot rotate, finally the shrinkage rack 7 cannot move relative to the gear 92, so the size of the pipe diameter of the shrinkage glue injection ring 4 cannot be changed, that is, the limiting assembly 9 can loosen and lock the shrinkage rack 7, and the adjusting knob 95 can open and lock the limiting assembly 9, so as to open and lock the shrinkage rack 7, so that the shrinkage glue injection ring 4 meets the actual use requirement;

[0049] 3、Then, after the shrinkage glue injection ring 4 is attached to the inner wall of the main pipeline 1, the inflation nozzle with the air pipe is clamped by the mechanical hand to inflate the inflatable air bag 5 (at this time it needs to be said that the air port of the inflatable air bag 5 is located in the inside of the main pipeline 1 and in the inside of the shrinkage glue injection ring 4), so that the inflatable air bag 5 is inflated until it is full, thereby forming a closed cavity;

[0050] 4、Further, the glue injection gun (not limited to the glue injection gun, as long as the device can realize the glue injection function) of the glue injection machine is carried into the main pipeline 1 by the mechanical hand until the glue injection gun is inserted into the second glue injection hole and the first glue injection hole 6 until the closed cavity, then the glue injection device is started, the glue enters the closed cavity through the glue injection gun, the second glue injection hole and the first glue injection hole 6;

[0051] 5、Finally, after the glue injection is completed, the mechanical hand pulls the glue injection port sealing plate 141 to make the second glue injection hole smaller until it is closed, so that the glue is sealed in the closed cavity, after it is solidified, the glue injection layer 13 is formed in the closed cavity, finally the connection between the main pipeline 1 and the branch pipeline 2 is sealed and connected, then the gas in the inflatable air bag 5 is discharged to make it empty and flat, and the device is pulled out of the main pipeline by the mechanical hand.

[0052] It needs to be explained that the camera and the sensor are configured on the mechanical arm in the utility model, which is used for feeding back the speed, time and whether reaching the connecting place of the main pipeline 1 and the branch pipeline 2 of the shrinkable glue injection ring 4 in the main pipeline 1, judging the pulling force value of the pulling shrinkable rack 7, the tightening degree of the shrinkable glue injection ring 4, the state (i.e. the fitting degree of the inflatable air bag 5 and the inner wall of the branch pipeline 2 and the outer wall of the main pipeline 1) when the inflatable air bag 5 is inflated, the position of the glue injection gun at the connecting place, i.e. the whole process of the glue injection gun from the main pipeline 1, the second glue injection hole, the first glue injection hole 6 to the closed cavity, the amount of glue injection, the sealing effect after pulling the glue injection hole sealing plate 141 and the like.

[0053] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above. It should be understood by the person skilled in the art that the utility model is not limited by the above-mentioned embodiments, and various changes and improvements can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The protection scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims

1. A pipe branch repair device for repairing the branch joint between a main pipe and a branch pipe, characterized in that: The shrinkage injection tape and the inflation air bag are included, and the shrinkage injection tape is wound into a shrinkage injection ring along the circumferential direction of the main pipeline; The first injection hole and the inflation air bag setting position corresponding to the branch pipeline joint are arranged on the shrinkage injection ring, and the inflation air bag is arranged on the inflation air bag setting position; When the injection gun is inserted into the branch pipeline joint through the first injection hole, the inflation air bag is extruded by the injection gun, so that the inflation air bag, the inner wall of the branch pipeline and the shrinkage injection ring form a closed cavity, the injection gun is used to inject glue into the closed cavity through the first injection hole to form an injection layer, and the branch pipeline joint is sealed and connected.

2. A pipe-in-pipe repair apparatus according to claim 1, wherein: The shrinkage injection tape includes an injection plate, the injection plate has a length direction and a width direction, a shrinkage rack and a limiting assembly limiting the shrinkage rack are fixedly connected to the injection plate respectively, and the shrinkage rack and the limiting assembly are located at two ends of the injection plate respectively, the limiting assembly extends along the width direction, and the rack extends along the length direction.

3. A pipe-in-pipe repair apparatus according to claim 2, wherein: The shrinkage rack and the injection plate form a ring along the circumferential direction of the main pipeline, and the end of the shrinkage rack is inserted into the limiting assembly along the circumferential direction of the main pipeline and is inserted into the rack limiting ring arranged along the length direction.

4. A pipe-in-pipe repair apparatus according to claim 3, wherein: The shrinkage injection tape has a height direction, the limiting assembly includes a fixed plate, a gear, an adjusting knob and a rotating shaft, the fixed plate is installed at the end of the shrinkage injection tape, the gear has a cavity in the interior, the rotating shaft is rotatably installed in the cavity along the height direction, the gear is sleeved on the rotating shaft, one end of the rotating shaft penetrates through and extends out of the fixed plate, and the adjusting knob is sleeved on the part of the rotating shaft extending out of the fixed plate; the shrinkage rack penetrates through the fixed plate and is engaged with the gear.

5. A pipe-in-pipe repair apparatus according to claim 4, wherein: The brake mechanism is arranged in the cavity and corresponds to the teeth of the gear, is used for being engaged with the gear, makes the gear brake and limits the shrinkage rack from walking on the gear, so that the diameter of the shrinkage injection ring is changed.

6. A pipe-in-pipe repair apparatus according to claim 5, wherein: The brake mechanism includes a gear brake tooth and a spring, the gear brake tooth is slidingly installed in the cavity and extends along the width direction, the spring is arranged in the cavity and extends along the width direction, one end of the spring is connected with the gear brake tooth, and the other end of the spring is connected with the side wall of the cavity.

7. A pipe-in-pipe repair apparatus according to claim 6, wherein: A second rack through hole is formed in the fixed plate, the second rack through hole is also communicated with the cavity, and the gear is engaged with the shrinkage rack penetrating through the second rack through hole.

8. A pipe-in-pipe repair apparatus according to claim 7, wherein: An injection port assembly is installed on the injection plate, the injection port assembly corresponds to the first injection hole, and the injection port assembly is located near the inflation air bag setting position.

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