Filling injector for pipeline crack non-excavation repair

Abstract

The utility model relates to the technical field of pipeline repair, and discloses a filling injector for pipeline crack non-excavation repair, which comprises an injector main body, a three-way joint is arranged at the top of the injector main body, a material injection pipe is inserted into one end of the three-way joint, and a pressurizing pipe is inserted into the other end of the three-way joint. A supporting cylinder is arranged on the injector body and located at the bottom of the three-way connector, and a connector is arranged at the bottom of the injector body. A plurality of groups of supporting assemblies with completely same structures are arranged around the outer wall of the supporting cylinder, and the supporting assemblies are used for enhancing the stability of the injector main body; a pressurizing assembly is arranged at the top of the pressurizing pipe and used for adjusting the pressure intensity in the injector body. According to the utility model, through the supporting assembly, the problems that the filling is non-uniform when the injection of the injector is unstable, partial areas are possibly filled excessively, and the other areas are filled insufficiently are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline repair, in particular to a filling syringe for trenchless repair of pipeline cracks. Background Art

[0002] The trenchless pipe crack repair syringe is a specialized tool used in pipe repair. It's primarily used to inject repair material into cracked pipes, achieving trenchless repair. Without damaging the pavement or excavating the pipe, the syringe is inserted deep into the pipe through a specific inlet, precisely delivering the repair material to the crack, filling and reinforcing it, restoring the pipe's seal and integrity.

[0003] Composition structure: The syringe is usually made of high-strength, corrosion-resistant materials and can withstand a certain pressure to ensure that the repair material can be smoothly injected into the pipeline crack. It has different capacity specifications and can be selected according to the size of the pipeline crack and the repair requirements.

[0004] The propulsion device can accurately control the injection speed and pressure of the repair material to ensure that the repair material is evenly filled into the crack. Some advanced propulsion devices also have pressure monitoring and adjustment functions, so that operators can understand the situation during the injection process at any time and make adjustments.

[0005] The connecting component is used to connect the syringe to the pipeline inlet or delivery pipeline to ensure the sealing of the connection and prevent leakage of the repair material.

[0006] Principle: The operator loads the appropriate repair material into the barrel of a filling syringe, then uses a propulsion device to inject the material into the pipe crack at a specific pressure and speed. During the injection process, the repair material gradually fills the crack and bonds tightly to the inner wall of the pipe. After a period of curing, it forms a solid repair layer, effectively repairing the pipe crack. During installation and maintenance, strict adherence to measurement specifications is required to ensure the quality and accuracy of the marking.

[0007] Existing filling syringes for trenchless repair of pipeline cracks have the following disadvantages: when the injection of the syringe is unstable, it will lead to uneven filling. Some areas may be overfilled while other areas are underfilled. This will make the strength of the pipeline cracks inconsistent. During subsequent use, the underfilled areas are prone to cracks or leakage again, affecting the overall sealing and service life of the pipeline. Uneven filling may also cause the inner wall surface of the pipeline to be uneven, affecting the flow performance of the fluid, increasing fluid resistance, and even causing local blockage. Utility Model Content

[0008] The purpose of the utility model is to provide a filling syringe for trenchless repair of pipeline cracks, so as to solve the problem that the syringe in the background art may cause uneven filling when the injection is unstable, and some areas may be overfilled while other areas are underfilled.

[0009] To achieve the above-mentioned object, the utility model provides the following technical solution: a filling syringe for trenchless repair of pipeline cracks, comprising a syringe body, a tee joint provided on the top of the syringe body, a filling tube plugged into one end of the tee joint, a pressurizing tube plugged into the other end of the tee joint, a support tube provided on the syringe body and located at the bottom of the tee joint, and a connector provided at the bottom of the syringe body;

[0010] A plurality of support components with identical structures are arranged on the outer wall surrounding the support cylinder, and the support components are used to enhance the stability of the syringe body;

[0011] A pressurizing assembly is provided on the top of the pressurizing tube, and the pressurizing assembly is used to adjust the internal pressure of the syringe body;

[0012] The support assembly includes a rotating sleeve arranged on the outer wall of the support tube, the outer wall of the support tube is engraved with an external thread for the rotating sleeve to rotate, the outer wall of the rotating sleeve is rotatably connected to a connecting sleeve, the end of the connecting sleeve is detachably mounted with a first connecting rod, the first connecting rod is rotatably connected to an adjusting arm, a fixing ring is fixedly mounted on the top of the support tube, a second connecting rod is detachably mounted on the end of the fixing ring, the end of the second connecting rod is rotatably connected to the support sleeve, the adjusting arm is rotatably connected to the bottom of the support sleeve and a support shaft is mounted on the bottom of the support sleeve, and a support block is detachably mounted on the bottom of the support shaft.

[0013] Preferably, the pressurizing assembly includes a pressing plate and a fixing plate. The fixing plate is arranged at the mouth of the pressurizing tube. A positioning ring is detachably installed at the mouth of the pressurizing tube. A connecting shaft is inserted into the pressurizing tube. The top of the connecting shaft is arranged on the pressing plate. A second spring is installed between the pressing plate and the fixing plate. A piston is arranged at the bottom of the connecting shaft.

[0014] Preferably, a disassembly sleeve is provided at the bottom of the support sleeve, a pull rod is inserted in the disassembly sleeve, a limiting rod is installed at the end of the pull rod, a limiting plate is installed in the disassembly sleeve, a first spring is installed between the limiting plate and the pull rod and the first spring is arranged outside the pull rod, and a support block is inserted on the limiting rod.

[0015] Preferably, a sliding groove is provided in the rotating sleeve, and two groups of sliding blocks are symmetrically arranged inside the connecting sleeve.

[0016] Preferably, a sponge is provided on the top of the pressing sheet.

[0017] Preferably, a pressure gauge is detachably mounted on the outside of the three-way joint.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] 1. In the utility model, when the rotating sleeve rotates on the external thread, the connecting sleeve is driven to rise and fall. When the connecting sleeve rises, it drives the first connecting rod, and the first connecting rod drives the adjusting arm, and the adjusting arm pushes the supporting sleeve, so that the supporting sleeve is unfolded, and the supporting block at the bottom of the supporting sleeve is in contact with the ground, thereby completing the support of the syringe body. The supporting assembly can be increased according to the actual situation. When the ground is uneven, the pull rod is pulled, and the pull rod drives the limit rod, which squeezes the first spring. The first spring is deformed to make the limit rod enter the disassembly sleeve, so that the support block can be quickly replaced.

[0020] 2. In the present invention, the pressure in the three-way joint can be observed in real time through the pressure gauge. When pressurization is needed, the pressing piece is pressed, and the pressing piece pushes the connecting shaft. The piston at the bottom of the connecting shaft moves vertically in the pressurized tube, thereby increasing the pressure in the pressurized tube and accelerating the injection speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of a filling syringe for trenchless repair of pipeline cracks proposed by the utility model;

[0022] Figure 2 This is a schematic diagram of the disassembly and expansion structure of a filling syringe for trenchless repair of pipeline cracks proposed by the utility model;

[0023] Figure 3 This is a schematic diagram of the extended structure of the rotating sleeve of a filling syringe for trenchless repair of pipeline cracks proposed by the utility model;

[0024] Figure 4 This is a schematic diagram of the expanded structure of a pressurizing component of a filling syringe for trenchless repair of pipeline cracks proposed by the utility model.

[0025] In the figure: 1. Syringe body; 2. T-joint; 3. Injection tube; 4. Connecting head; 5. Support cylinder; 6. Pressurizing tube; 7. Support assembly; 701. Second connecting rod; 702. Support sleeve; 703. First connecting rod; 704. Adjusting arm; 705. Pull rod; 706. Limiting plate; 707. First spring; 708. Disassembly sleeve; 709. Support block; 710. Limiting rod; 711. Support shaft; 8. Pressurizing assembly; 801. Pressing plate; 802. Fixed plate; 803. Positioning ring; 804. Second spring; 805. Pressure gauge; 806. Connecting shaft; 807. Piston; 808. Sponge; 9. Fixed ring; 10. Rotating sleeve; 11. Connecting sleeve; 12. External thread; 13. Slide groove; 14. Slider. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] Example 1

[0028] See also Figure 1 - Figure 4 The figure shows a filling syringe for trenchless repair of pipeline cracks, comprising a syringe body 1, a tee joint 2 provided on the top of the syringe body 1, a filling tube 3 plugged into one end of the tee joint 2, a pressurizing tube 6 plugged into the other end of the tee joint 2, a support tube 5 provided on the syringe body 1 and located at the bottom of the tee joint 2, and a connector 4 provided at the bottom of the syringe body 1;

[0029] A plurality of support components 7 having identical structures are provided on the outer wall surrounding the support tube 5 , and the support components 7 are used to enhance the stability of the syringe body 1 ;

[0030] Pressurizing assembly 8; a pressurizing assembly 8 is provided on the top of the pressurizing tube 6, and the pressurizing assembly 8 is used to adjust the internal pressure of the syringe body 1;

[0031] The support assembly 7 includes a rotating sleeve 10 arranged on the outer wall of the support tube 5. The outer wall of the support tube 5 is engraved with an external thread 12 for the rotating sleeve 10 to rotate. The outer wall of the rotating sleeve 10 is rotatably connected to a connecting sleeve 11. The end of the connecting sleeve 11 is detachably installed with a first connecting rod 703, and the first connecting rod 703 is rotatably connected to an adjusting arm 704. A fixing ring 9 is fixedly installed on the top of the support tube 5, and a second connecting rod 701 is detachably installed on the end of the fixing ring 9. The end of the second connecting rod 701 is rotatably connected to a support sleeve 702. The adjusting arm 704 is rotatably connected to the bottom of the support sleeve 702 and a support shaft 711 is installed at the bottom of the support sleeve 702. The bottom of the support shaft 711 is detachably installed with a support block 709.

[0032] In this solution, when the syringe body 1 is injecting, the rotating sleeve 10 is rotated, and the rotating sleeve 10 rotates on the external thread 12 to be raised and lowered, and the connecting sleeve 11 outside the rotating sleeve 10 moves upward accordingly. The first connecting rods 703 set at both ends limit the connecting sleeve 11. When the connecting sleeve 11 moves upward, it drives the first connecting rod 703 to push the adjusting arm 704, and the adjusting arm 704 pushes the supporting sleeve 702. The bottom of the supporting sleeve 702 opens and closes, so that the support block 709 contacts the ground, completing the support of the syringe body 1, preventing the syringe body 1 from being unstable during injection and affecting the injection uniformity. The support component 7 solves the problem that the syringe will cause uneven filling when the injection is unstable, and some areas may be overfilled while other areas are underfilled.

[0033] Furthermore, the pressurizing assembly 8 includes a pressing piece 801 and a fixing piece 802. The fixing piece 802 is arranged at the nozzle of the pressurizing tube 6. A positioning ring 803 is detachably installed at the nozzle of the pressurizing tube 6. A connecting shaft 806 is inserted into the pressurizing tube 6. The top of the connecting shaft 806 is arranged on the pressing piece 801. A second spring 804 is installed between the pressing piece 801 and the fixing piece 802. A piston 807 is arranged at the bottom of the connecting shaft 806.

[0034] Specifically, when an injection is required, attention should be paid to the pressure inside the syringe body 1. When pressurization is required, the pressing piece 801 is pushed, and the pressing piece 801 moves downward, thereby pushing the piston 807, reducing the space in the pressurizing tube 6 to apply pressurization, thereby adjusting the injection speed and preventing uneven injection. When pressurizing, the force area is increased by the pressing piece 801, preventing the operator from being injured at the base of the hand due to long-term pressing.

[0035] Furthermore, a disassembly sleeve 708 is provided at the bottom of the support sleeve 702, a pull rod 705 is inserted into the disassembly sleeve 708, a limiting rod 710 is installed at the end of the pull rod 705, a limiting plate 706 is installed in the disassembly sleeve 708, a first spring 707 is installed between the limiting plate 706 and the pull rod 705, and the first spring 707 is provided outside the pull rod 705, and a support block 709 is inserted on the limiting rod 710.

[0036] Specifically, when encountering uneven ground, the support block 709 can be replaced according to the terrain, and the pull rod 705 is pulled. The pull rod 705 drives the limit rod 710. When the limit rod 710 moves, it presses the first spring 707. The first spring 707 is deformed, causing the limit rod 710 to enter the disassembly sleeve 708, making it easier to replace the support block 709.

[0037] Furthermore, a sliding groove 13 is provided in the rotating sleeve 10, and two sets of sliding blocks 14 are symmetrically provided inside the connecting sleeve 11;

[0038] Specifically, when the rotating sleeve 10 rotates on the external thread 12 to be lifted and lowered, the rotating sleeve 12 drives the connecting sleeve 11, and the first connecting rod is provided to limit the connecting sleeve 11, so that when the rotating sleeve 10 rotates, the slider 14 rotates in the slide groove 13, and when the rotating sleeve 10 rotates, the connecting sleeve 11 is vertically lifted and lowered.

[0039] Furthermore, a sponge 808 is provided on the top of the pressing sheet 801 .

[0040] Specifically, the provided sponge 808 improves operator comfort.

[0041] Furthermore, a pressure gauge 805 is detachably mounted on the outside of the tee connector 2;

[0042] Specifically, the pressure gauge 805 can be used for real-time observation and timely adjustment of the internal pressure of the syringe body 1 to ensure uniformity during injection.

[0043] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0044] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A filling syringe for trenchless repair of pipeline cracks, comprising a syringe body (1), characterized in that: A three-way joint (2) is provided on the top of the syringe body (1), an injection tube (3) is plugged into one end of the three-way joint (2), and a pressurizing tube (6) is plugged into the other end of the three-way joint (2), a support cylinder (5) is provided on the syringe body (1), and the support cylinder (5) is located at the bottom of the three-way joint (2), and a connector (4) is provided at the bottom of the syringe body (1); A plurality of support assemblies (7) having identical structures are arranged on the outer wall surrounding the support cylinder (5), and the support assemblies (7) are used to enhance the stability of the syringe body (1); A pressurizing assembly (8) is provided on the top of the pressurizing tube (6), and the pressurizing assembly (8) is used to adjust the internal pressure of the syringe body (1); The support assembly (7) comprises a rotating sleeve (10) arranged on the outer wall of the support tube (5), the outer wall of the support tube (5) is engraved with an external thread (12) for the rotating sleeve (10) to rotate, the outer wall of the rotating sleeve (10) is rotatably connected to a connecting sleeve (11), the end of the connecting sleeve (11) is detachably mounted with a first connecting rod (703), the first connecting rod (703) is rotatably connected to an adjusting arm (704), a fixing ring (9) is fixedly mounted on the top of the support tube (5), the end of the fixing ring (9) is detachably mounted with a second connecting rod (701), the end of the second connecting rod (701) is rotatably connected to a support sleeve (702), the adjusting arm (704) is rotatably connected to the bottom of the support sleeve (702), and a support shaft (711) is mounted on the bottom of the support sleeve (702), and a support block (709) is detachably mounted on the bottom of the support shaft (711).

2. The filling syringe for trenchless repair of pipeline cracks according to claim 1, characterized in that: The pressurizing assembly (8) comprises a pressing plate (801) and a fixing plate (802), wherein the fixing plate (802) is arranged at the nozzle of the pressurizing tube (6), and a positioning ring (803) is detachably installed at the nozzle of the pressurizing tube (6). A connecting shaft (806) is inserted into the pressurizing tube (6), and the top of the connecting shaft (806) is arranged on the pressing plate (801). A second spring (804) is installed between the pressing plate (801) and the fixing plate (802), and a piston (807) is arranged at the bottom of the connecting shaft (806).

3. The filling syringe for trenchless repair of pipeline cracks according to claim 1, characterized in that: A disassembly sleeve (708) is provided at the bottom of the support sleeve (702), a pull rod (705) is inserted into the disassembly sleeve (708), a limiting rod (710) is installed at the end of the pull rod (705), a limiting plate (706) is installed in the disassembly sleeve (708), a first spring (707) is installed between the limiting plate (706) and the pull rod (705), and the first spring (707) is arranged outside the pull rod (705), and a support block (709) is inserted into the limiting rod (710).

4. The filling syringe for trenchless repair of pipeline cracks according to claim 1, characterized in that: A sliding groove (13) is provided in the rotating sleeve (10), and two groups of sliding blocks (14) are symmetrically arranged inside the connecting sleeve (11).

5. The filling syringe for trenchless repair of pipeline cracks according to claim 2, characterized in that: A sponge (808) is provided on the top of the pressing sheet (801).

6. The filling syringe for trenchless repair of pipeline cracks according to claim 2, characterized in that: A pressure gauge (805) is detachably mounted on the outside of the three-way connector (2).

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