A minimally invasive grouting catheter for grouting repair of roads and bridges
By setting up a heating chamber and heating wire in the road bridge grouting repair conduit, the slurry fluidity is maintained, and the detachable grouting port and automatic smoothing design is adopted, the traditional method is solved in the problem of blockage in low temperature environments and the lack of applicability of narrow areas, achieving efficient and high-quality repair results.
Patent Information
- Application Number
- CN202420621202.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-28
- Publication Date
- 2025-04-08
- Estimated Expiration
- 2034-03-28
AI Technical Summary
Traditional road and bridge crack grouting repair methods are prone to blocking the grouting conduit due to slurry solidification in low temperature environments, resulting in repair failure, and are not applicable to narrow or difficult-to-entry construction areas.
A minimally invasive grouting conduit for grouting repair of road bridges was designed, and the outer tube was equipped with a heating chamber and heating wire. The slurry fluidity was maintained through electrical heating, and the blockage and waste problems were solved through the removable conical grouting port and automatic smoothing of overflow.
It realizes the maintenance of slurry fluidity in low temperature environments, improves construction efficiency and repair quality, is suitable for construction in narrow areas, and reduces material losses and labor costs.
Smart Images
Figure CN222730305U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of road and bridge construction, in particular to a grouting conduit for minimally invasive grouting repair of road and bridges. Background Art
[0002] Roads and bridges are important components of transportation infrastructure, carrying the traffic flow of vehicles and pedestrians. As time goes by and the frequency of use increases, cracks and damage may occur on roads and bridges, which will not only reduce their structural strength and stability, but also endanger traffic safety. Therefore, crack repair and reinforcement of roads and bridges are of vital importance.
[0003] Traditional grouting repair methods for road and bridge cracks usually require a large construction space and equipment, which is impractical for small or difficult-to-access construction areas. Most importantly, when working in a low-temperature environment, the slurry may solidify during transportation and block the grouting duct, which often leads to repair failure.
[0004] Therefore, a minimally invasive grouting conduit for grouting and repairing of road and bridges is needed to solve the above-mentioned technical defects. Utility Model Content
[0005] The utility model aims to provide a minimally invasive grouting conduit for grouting and repairing of road bridges, so as to solve the problem that the grouting conduit is easily blocked by low slurry temperature proposed in the above background technology.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a minimally invasive grouting catheter for grouting repair of road and bridges, comprising an outer tube and an inner cavity, the inner cavity is opened in the outer tube, heating cavities are opened on both sides of the outer tube, oil is injected into the heating cavity, a water injection port is provided on one side of the top of the heating cavity, an air hole is provided on the other side of the top of the heating cavity, a heating guide wire is fixedly installed on the inner wall of the heating cavity, a temperature sensor is installed on the left side of the outer wall of the outer tube, the temperature sensor extends into the heating cavity, the inner tube is inserted into the inner cavity, and the bottom end of the inner tube is connected to the grouting port.
[0007] Preferably, the heating chamber surrounds the outside of the inner chamber, and the heating chamber is closed.
[0008] Preferably, the bottom end of the inner tube is inserted into the bottom of the outer tube, a threaded seat is welded to the bottom end of the outer tube, a threaded head is provided at the top of the grouting port, the threaded head and the threaded seat are assembled by screwing together, and a sealing ring is installed between the bottom end of the inner tube and the top of the grouting port.
[0009] Preferably, the grouting port is a conical tube, and the inner tube and the grouting port are components made of metal material.
[0010] Preferably, installation grooves are provided on both sides of the outer tube, hinged columns are fixed in the installation grooves, rotatable hanging walls are hung on the bottom ends of the hinged columns, chains are connected to the bottom ends of the hanging walls, a drag plate is hung on the bottom end of the chains, and the drag plate is a hollow metal frame.
[0011] Preferably, locking holes are respectively provided on both sides of the installation groove, the locking holes are arranged vertically and distributed at equal intervals, and the hinge column is fixed in the installation groove through the locking holes.
[0012] Preferably, the straight-line distance between the drag plate and the grouting port is greater than 3-5CM, and the grouting port is located directly above the center point of the drag plate.
[0013] Preferably, the diameter of the inner tube is larger than the top diameter of the grouting port, and the vertical center lines of the inner tube and the grouting port coincide with each other.
[0014] Compared with the prior art, the utility model has the following beneficial effects: the minimally invasive grouting conduit for grouting repair of road bridges not only realizes slurry heating and maintains fluidity, realizes detachable and replaceable grouting ports and reduces material loss, but also realizes automatic smoothing of overflow slurry;
[0015] (1) A heating chamber, a heating wire, a temperature sensor, an inner tube, and oil are provided. A heating chamber is provided in an outer tube. Electric heating technology is adopted. By energizing the heating wire, the oil is heated. The temperature of the slurry can be accurately controlled according to the temperature sensor to ensure that the slurry continuously flows downward in the inner tube without solidification and clogging. During the construction process, especially in a low temperature environment, the slurry can always maintain appropriate fluidity, which helps to improve the construction efficiency and the repair quality;
[0016] (2) The grouting port, the threaded head, and the threaded seat are provided, and the bottom end of the inner tube is connected with the grouting port. The conical grouting port is detachable and can be quickly installed or disassembled through the threaded head and the threaded seat at the top, which is convenient for cleaning the grouting port and helps prevent the slurry from accumulating, clogging or hardening in the pipeline. If there is a blockage, the entire conduit does not need to be discarded, and only a new grouting port needs to be replaced, thereby extending the service life of the conduit and reducing material loss;
[0017] (3) By providing a grouting port, a drag plate, a hinged column, and a mounting groove, when the machine moves forward smoothly with the outer tube in the crack of the road bridge, the grouting port is suspended above the gap, and the drag plate is dragged on the ground at the gap, so that the slurry overflowing from the gap can be smoothed in time to prevent the waste and pollution of the slurry. There is no need for another staff member to follow behind to smooth the gap, thereby reducing the manpower repair cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a front view cross-sectional structural schematic diagram of the utility model;
[0019] Figure 2 This is a schematic diagram of the side view structure of the installation slot of the utility model;
[0020] Figure 3 This is a schematic diagram of the front view structure of the grouting port of the utility model;
[0021] Figure 4 This is a schematic diagram of the structure of the carriage of the utility model from a top view;
[0022] Figure 5 For the utility model Figure 1 A in the middle is a schematic diagram of the enlarged structure viewed from the front.
[0023] In the figure: 1. outer tube; 2. water injection port; 3. temperature sensor; 4. oil; 5. heating guide wire; 6. heating chamber; 7. wall hanging; 8. chain; 9. drag plate; 10. grouting port; 11. threaded seat; 12. sealing ring; 13. inner tube; 14. hinged column; 15. mounting groove; 16. inner chamber; 17. air hole; 18. lock hole; 19. threaded head. DETAILED DESCRIPTION
[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0025] Example 1: Please refer to Figure 1-5 A grouting catheter for minimally invasive grouting repair of road and bridges, comprising an outer tube 1 and an inner cavity 16, wherein the inner cavity 16 is opened in the outer tube 1, heating cavities 6 are opened on both sides of the outer tube 1, oil 4 is injected into the heating cavity 6, a water injection port 2 is arranged on one side of the top of the heating cavity 6, an air hole 17 is arranged on the other side of the top of the heating cavity 6, a heating guide wire 5 is fixedly mounted on the inner wall of the heating cavity 6, a temperature sensor 3 is installed on the left side of the outer wall of the outer tube 1, the temperature sensor 3 extends into the heating cavity 6, an inner tube 13 is inserted into the inner cavity 16, a grouting port 10 is connected to the bottom end of the inner tube 13, the heating cavity 6 surrounds the outer side of the inner cavity 16, and the heating cavity 6 is closed;
[0026] Specifically, Figure 1 and Figure 5 As shown, a surrounding heating chamber 6 is provided in the outer tube 1. Electric heating technology is adopted to heat the oil 4 by energizing the heating wire 5. The temperature of the slurry can be accurately controlled according to the temperature sensor 3 to ensure that the slurry continuously flows downward in the inner tube 13 without solidification and clogging. During the construction process, especially in a low temperature environment, the slurry can always maintain appropriate fluidity.
[0027] Embodiment 2: The bottom end of the inner tube 13 is plugged into the bottom of the outer tube 1, a threaded seat 11 is welded to the bottom end of the outer tube 1, a threaded head 19 is provided at the top end of the grouting port 10, the threaded head 19 and the threaded seat 11 are assembled by screwing together, a sealing ring 12 is installed between the bottom end of the inner tube 13 and the top end of the grouting port 10, the grouting port 10 is a conical tube, and the inner tube 13 and the grouting port 10 are components made of metal materials;
[0028] Specifically, Figure 1 and Figure 3 As shown, the bottom end of the inner tube 13 is connected with a grouting port 10. The conical grouting port 10 is detachable in design and can be assembled with the threaded head 19 and the threaded seat 11 at the top. It can be quickly installed or disassembled, and is convenient for cleaning the grouting port 10. It is beneficial to prevent the slurry from accumulating, clogging or hardening in the pipeline. If there is a blockage, there is no need to discard the entire catheter, and only a new grouting port 10 needs to be replaced.
[0029] Embodiment 3: The outer tube 1 is provided with mounting grooves 15 on both sides, and hinged columns 14 are fixed in the mounting grooves 15. The bottom ends of the hinged columns 14 are respectively hung with rotatable hanging walls 7, and the bottom ends of the hanging walls 7 are respectively connected with chains 8. The bottom ends of the chains 8 are hung with a drag plate 9, and the drag plate 9 is a hollow metal frame. The mounting grooves 15 are provided with locking holes 18 on both sides, and the locking holes 18 are arranged vertically and distributed at equal intervals. The hinged columns 14 are fixed in the mounting grooves 15 through the locking holes 18. The straight-line distance between the drag plate 9 and the grouting port 10 is greater than 3-5CM. The grouting port 10 is located directly above the center point of the drag plate 9. The diameter of the inner tube 13 is greater than the top diameter of the grouting port 10, and the vertical center lines of the inner tube 13 and the grouting port 10 coincide with each other.
[0030] Specifically, Figure 1 , Figure 2 and Figure 4 As shown, when the machine moves forward steadily with the outer tube 1 in the crack of the road bridge, the grouting port 10 is suspended above the gap, and the drag plate 9 is dragged on the ground at the gap, so that the slurry overflowing from the gap can be smoothed in time to prevent waste and pollution of the slurry.
[0031] Working principle: When the utility model is in use, first, the machine moves forward smoothly with the outer tube 1 in the cracks of the road bridge, and the flowing slurry is injected from the inner tube 13, falls into the grouting port 10 and squeezes into the gap. A surrounding heating chamber 6 is arranged in the outer tube 1, and electric heating technology is adopted. By energizing the heating wire 5, the oil 4 is heated, and the temperature of the slurry can be accurately controlled according to the temperature sensor 3 to ensure that the slurry continues to flow downward in the inner tube 13 without solidification and clogging. As the outer tube 1 moves, the drag plate 9 is dragged on the ground at the gap, so that the slurry overflowing from the gap can be smoothed in time to complete the filling.
[0032] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.
Claims
1. A minimally invasive grouting catheter for grouting repair of roads and bridges, comprising an outer tube (1) and an inner cavity (16), characterized in that: An inner cavity (16) is provided in the outer tube (1), heating cavities (6) are provided on both sides of the outer tube (1), oil (4) is injected into the heating cavity (6), a water injection port (2) is provided on one side of the top of the heating cavity (6), an air hole (17) is provided on the other side of the top of the heating cavity (6), a heating guide wire (5) is fixedly mounted on the inner wall of the heating cavity (6), a temperature sensor (3) is installed on the left side of the outer wall of the outer tube (1), the temperature sensor (3) extends into the heating cavity (6), an inner tube (13) is inserted into the inner cavity (16), and a grouting port (10) is connected to the bottom end of the inner tube (13).
2. The minimally invasive grouting catheter for road and bridge grouting repair according to claim 1 is characterized by: The heating chamber (6) surrounds the outside of the inner chamber (16) and the heating chamber (6) is closed.
3. The minimally invasive grouting catheter for road and bridge grouting repair according to claim 1, characterized in that: The bottom end of the inner tube (13) is plugged into the bottom of the outer tube (1); a threaded seat (11) is welded to the bottom end of the outer tube (1); a threaded head (19) is provided at the top end of the grouting port (10); the threaded head (19) and the threaded seat (11) are assembled by screwing together; a sealing ring (12) is installed between the bottom end of the inner tube (13) and the top end of the grouting port (10).
4. The minimally invasive grouting catheter for road and bridge grouting repair according to claim 1, characterized in that: The grouting port (10) is a conical tube, and the inner tube (13) and the grouting port (10) are components made of metal material.
5. The minimally invasive grouting catheter for road and bridge grouting repair according to claim 1, characterized in that: The outer tube (1) is provided with mounting grooves (15) on both left and right sides, and hinged columns (14) are fixed in the mounting grooves (15). The bottom ends of the hinged columns (14) are respectively hung with rotatable hanging walls (7), and the bottom ends of the hanging walls (7) are respectively connected with chains (8). The bottom ends of the chains (8) are hung with a drag plate (9), and the drag plate (9) is a hollow metal frame.
6. The minimally invasive grouting conduit for grouting repair of roads and bridges according to claim 5, characterized in that: Locking holes (18) are respectively provided on both sides of the installation groove (15), and the locking holes (18) are arranged vertically and distributed at equal intervals. The hinge column (14) is fixed in the installation groove (15) through the locking holes (18).
7. The minimally invasive grouting conduit for grouting repair of roads and bridges according to claim 5, characterized in that: The straight-line distance between the drag plate (9) and the grouting port (10) is greater than 3-5 cm, and the grouting port (10) is located directly above the center point of the drag plate (9).
8. The minimally invasive grouting catheter for road and bridge grouting repair according to claim 1, characterized in that: The diameter of the inner tube (13) is greater than the diameter of the top end of the grouting port (10), and the vertical center lines of the inner tube (13) and the grouting port (10) coincide with each other.