A double-liquid grouting device

Abstract

A kind of double-liquid grouting device, comprising: two first three-way pipes, second three-way pipe, one of the first outlet of two first three-way pipes is communicated with the second inlet of second three-way pipe respectively, the other first outlet is communicated with double-liquid grouting pump, the second outlet of second three-way pipe is communicated with grouting pipe by grouting connector, cyclone connector is installed in second three-way pipe and outer peripheral surface is provided with helical flow guide groove, center is provided with flow guide cavity along the axial direction, one end of helical flow guide groove is communicated with one of second inlet, the other end is communicated with second outlet, one end of flow guide cavity is communicated with the other second inlet, the other end is communicated with second outlet.The design is transported by double-liquid grouting pump to two kinds of slurry, two kinds of slurry are mixed by cyclone connector, after mixing, grouting connector is connected with grouting pipe, ensure that double-liquid is mixed evenly in the moment before grouting, to effectively avoid the condition of pipe blockage.

Description

Technical Field

[0001] This utility model relates to the field of building waterproofing engineering technology, and in particular to a dual-liquid grouting device. Background Technology

[0002] Grouting is the process of injecting a solidifiable grout into the formation under pressure. The grout solidifies to form a solidified body or grout-cemented substance that bonds with the formation, thereby enhancing geological stability. Traditional grouting methods often use single-component grouting, which has drawbacks such as difficulty in controlling the grout solidification rate, insufficient filling of complex fissures, and poor sealing durability. In special circumstances, the performance of single-component grouts generally cannot meet the requirements of construction conditions, especially the requirement for setting time. Rapidly setting two-component grouts, on the other hand, can resist flowing water or prevent large-area grout loss, thus meeting these requirements. If the two grouts are mixed before pumping, their rapid setting time can easily cause pipe blockage after injection, affecting the grouting effect. Summary of the Invention

[0003] The purpose of this invention is to overcome the defects and problems of poor grouting effect in the existing technology and to provide a dual-liquid grouting device with better grouting effect.

[0004] To achieve the above objectives, the technical solution of this utility model is: a dual-liquid grouting device, comprising: a dual-liquid grouting pump, two first tee pipes, a second tee pipe, and a vortex connector. The first tee pipes are provided with a first inlet end for inputting grouting liquid and two first outlet ends. The second tee pipes are provided with two second inlet ends and two outlet ends. One of the first outlet ends of the two first tee pipes is connected to one of the two second inlet ends of the second tee pipe, and the other first outlet end of the two first tee pipes is connected to the dual-liquid grouting pump. The second outlet end of the second three-way pipe is connected to a grouting connector, which is connected to a grouting pipe. The vortex connector is installed inside the second three-way pipe. A spiral guide groove is formed on the outer circumferential surface of the vortex connector. A guide cavity is formed along the axial direction at the center of the vortex connector. One end of the spiral guide groove is connected to one of the second inlet ends, and the other end of the spiral guide groove is connected to the second outlet end. One end of the guide cavity is connected to the other second inlet end, and the other end of the guide cavity is connected to the second outlet end.

[0005] The first three-way pipe includes a valve seat, a connecting pipe, an inlet pipe, and an outlet pipe. The valve seat has a cavity. One end of the connecting pipe is connected to the middle of the cavity. The first outlet end of the connecting pipe is connected to the dual-liquid grouting pump. The upper and lower ends of the cavity are connected to valve covers. The lower end of the valve cover has a small hole. A first steel ball is movably connected inside the valve cover. The first steel ball is arranged relative to the small hole. The first inlet end of the inlet pipe is connected to the lower end of the cavity. The inlet end of the outlet pipe is connected to the upper end of the cavity. The first outlet end of the outlet pipe is connected to the second inlet end of the second three-way pipe.

[0006] The inner wall of the second three-way pipe is provided with a first connecting block and a second connecting block. The first connecting block is installed at one of the second liquid inlets, and the second connecting block is installed at the other second liquid inlet. The vortex connector is located between the first connecting block and the second connecting block. The first connecting block has a first channel. One end of the first channel is connected to one of the second liquid inlets, and the other end of the first channel is connected to one end of the spiral guide groove. The second connecting block has a second channel. One end of the second channel is connected to the other second liquid inlet, and the other end of the second channel is connected to one end of the guide cavity.

[0007] The swirl connector is columnar, and multiple spiral guide grooves are formed on the outer circumferential surface of the swirl connector. The multiple spiral guide grooves are evenly arranged along the circumference.

[0008] The vortex connector is rotatably connected to the first connecting block and the second connecting block along the axial direction.

[0009] Both the first connecting block and the second connecting block are provided with rotating grooves, and the outer peripheral surface of the vortex connector is connected to a rotating block, which is rotatably connected to the rotating groove.

[0010] A second steel ball is provided at one end of the second connecting block near the vortex connector. The size of the second steel ball is larger than the size of the second channel. A compression spring is connected to one end of the second steel ball, and one end of the compression spring is connected inside the second channel.

[0011] The dual-liquid grouting pump is mounted on a frame, and a set of casters is mounted on the lower side of the frame.

[0012] The second outlet end is connected to a drain pipe, one end of which is connected to the grouting joint, and the middle part of the drain pipe is connected to a grouting joint through a first ball valve.

[0013] A second ball valve is installed between the drain pipe and the grouting joint.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. In this utility model, a dual-liquid grouting device simultaneously delivers two types of grout using a dual-liquid grouting pump. After being delivered to the second three-way pipe, the two grouts are mixed through a vortex joint. The mixed grouts are then connected to the grouting pipe through a grouting joint, ensuring that the two grouts are instantly and uniformly mixed before grouting, thereby effectively avoiding pipe blockage. Therefore, this utility model achieves a better grouting effect.

[0016] 2. In this utility model's dual-liquid grouting device, a first steel ball is installed. After grout is injected into the inlet pipe, it flows through a small hole into the valve cover, causing the first steel ball to move within the valve cover. This allows the grout inside the valve cover to flow into the dual-liquid grouting pump, and then through the pump into the outlet pipe. Because the first steel ball blocks the small hole when it falls, grout backflow is prevented, enabling directional flow of the grout. Therefore, this utility model has high reliability and stable operation.

[0017] 3. In this utility model of a dual-liquid grouting device, by setting multiple spiral guide grooves, the two liquids can form a swirling mixture under high pressure. At the same time, the swirling joint can rotate, thereby further driving the slurry mixing. By setting a second steel ball, unidirectional flow of the slurry can be achieved, preventing the other slurry from flowing into the second channel and causing blockage. Therefore, this utility model has a better mixing effect and higher reliability.

[0018] 4. In this utility model's dual-liquid grouting device, the dual-liquid grouting pump can be moved by a set of movable wheels, allowing it to be moved to a designated location for construction, making construction more convenient. Furthermore, the first ball valve and grout discharge connector allow for pressure relief of the outlet pipe, ensuring high safety. Therefore, this utility model is convenient to construct and offers high safety. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a cross-sectional schematic diagram of the first tee pipe in this utility model.

[0021] Figure 3 This is a structural schematic diagram of the second three-way pipe, grouting joint, and grout discharge joint in this utility model.

[0022] Figure 4 This is a cross-sectional schematic diagram of the second three-way pipe and the swirl connector in this utility model.

[0023] Figure 5 This is a schematic diagram of the vortex connector in this utility model.

[0024] In the diagram: 1. Frame; 2. Moving wheel assembly; 3. Dual-liquid grouting pump; 4. First tee pipe; 4. First inlet end; 41. First outlet end; 42. Valve seat; 43. Cavity; 44. Connecting pipe; 45. Inlet pipe; 46. Outlet pipe; 47. Valve cover; 48. Small hole; 49. First steel ball; 410. Second tee pipe; 5. Second inlet end; 51. Second outlet end; 52. First connecting block; 53. Second connecting block; 54. First channel; 55. Second channel; 56. Rotating groove; 57. Second steel ball; 58. Compression spring; 59. Swirl connector; 6. Spiral guide groove; 61. Guide cavity; 62. Rotating block; 63. Drain pipe; 7. Grouting connector; 8. Grouting connector; 9. First ball valve; 10. Second ball valve; 11. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] Example 1:

[0027] See Figures 1 to 5 A dual-liquid grouting device includes: a dual-liquid grouting pump 3, two first three-way pipes 4, a second three-way pipe 5, and a swirl connector 6. The first three-way pipes 4 are provided with a first inlet end 41 for inputting grouting liquid and two first outlet ends 42. The second three-way pipes 5 are provided with two second inlet ends 51 and two second outlet ends 52. One of the first outlet ends 42 of the two first three-way pipes 4 is connected to one of the two second inlet ends 51 of the second three-way pipe 5, and the other first outlet end 42 of the two first three-way pipes 4 is connected to the dual-liquid grouting pump 3. The second outlet end 52 of the second three-way pipe 5 is connected to a grouting connector 8. The grouting connector 8 is connected to the grouting pipe. The vortex connector 6 is installed inside the second three-way pipe 5. The outer circumferential surface of the vortex connector 6 is provided with a spiral guide groove 61. The center of the vortex connector 6 is provided with a guide cavity 62 along the axial direction. One end of the spiral guide groove 61 is connected to one of the second liquid inlet ends 51, and the other end of the spiral guide groove 61 is connected to the second liquid outlet end 52. One end of the guide cavity 62 is connected to the other second liquid inlet end 51, and the other end of the guide cavity 62 is connected to the second liquid outlet end 52. The dual-liquid grouting pump 3 is installed on the frame 1, and a set of movable wheels 2 is installed on the lower side of the frame 1.

[0028] In this embodiment, the dual-liquid grouting pump 3 includes two independent grouting chambers, which respectively contain liquid A (such as epoxy resin grout) and liquid B (such as curing agent grout). When preparing the grout, the ratio of liquid A to liquid B needs to be determined by experiment to ensure that the curing time of the grout (adjustable to 5-30 minutes) is suitable for the construction rhythm. The inner wall of the chamber is provided with a wear-resistant coating, and the power end is equipped with a variable frequency motor to achieve precise adjustment of grouting pressure and flow rate. The grouting chamber is made of stainless steel, and the wear-resistant coating is a tungsten carbide spray coating to extend the service life of the equipment. The working principle of the dual-liquid grouting pump 3 can be referred to a dual-liquid cement grouting machine disclosed in Chinese Patent CN 218204314U.

[0029] In use, the dual-liquid grouting pump 3 is driven to the designated location by the moving wheel set 2, and then liquid A and liquid B are injected into the first inlet end 41 of the two first three-way pipes 4 respectively. Liquid A and liquid B enter the two independent grouting chambers of the dual-liquid grouting pump 3 through the first outlet end 42. Then, liquid A and liquid B are discharged through the first three-way pipe 4 to the two second inlet ends 51 of the second three-way pipe 5 respectively by the piston. The two slurries are mixed by the swirl joint 6. After mixing, they are discharged through the second outlet end 52 to the grouting joint 8 and grouting is performed through the grouting pipe.

[0030] Example 2:

[0031] The basic content is the same as in Example 1, except that:

[0032] See Figure 2 The first three-way pipe 4 includes a valve seat 43, a connecting pipe 45, an inlet pipe 46, and an outlet pipe 47. The valve seat 43 has a cavity 44. One end of the connecting pipe 45 is connected to the middle of the cavity 44. The first outlet end 42 of the connecting pipe 45 is connected to the dual-liquid grouting pump 3. The upper and lower ends of the cavity 44 are connected to valve covers 48. The lower end of the valve cover 48 has a small hole 49. A first steel ball 410 is movably connected inside the valve cover 48. The first steel ball 410 is arranged relative to the small hole 49. The first inlet end 41 of the inlet pipe 46 is connected to the lower end of the cavity 44. The inlet end of the outlet pipe 47 is connected to the upper end of the cavity 44. The first outlet end 42 of the outlet pipe 47 is connected to the second inlet end 51 of the second three-way pipe 5.

[0033] In this embodiment, the first inlet end 41 of the inlet pipe 46 is connected to the equipment for storing slurry through a pipeline. After the slurry is injected, the first steel ball 410 floats up due to buoyancy, causing the small hole 49 to open. The slurry enters the cavity 44 through the valve cover 48. Under the action of the dual-liquid grouting pump 3, the second first steel ball 410 is pushed upward and floats up. The slurry enters the outlet pipe 47 through the valve cover 48 and is discharged. When the slurry pressure is low, the weight of the first steel ball 410 is greater than the buoyancy, causing the first steel ball 410 to fall and block the small hole 49, thus preventing the slurry from flowing back.

[0034] Example 3:

[0035] The basic content is the same as in Example 1, except that:

[0036] See Figure 3 and Figure 4 The inner wall of the second three-way pipe 5 is provided with a first connecting block 53 and a second connecting block 54. The first connecting block 53 is installed on one of the second liquid inlet ends 51, and the second connecting block 54 is installed on the other second liquid inlet end 51. The vortex connector 6 is located between the first connecting block 53 and the second connecting block 54. The first connecting block 53 has a first channel 55. One end of the first channel 55 is connected to one of the second liquid inlet ends 51, and the other end of the first channel 55 is connected to one end of the spiral guide groove 61. The second connecting block 54 has a second channel 56. One end of the second channel 56 is connected to the other second liquid inlet end 51, and the other end of the second channel 56 is connected to one end of the guide cavity 62.

[0037] In this embodiment, two types of slurry enter the vortex connector 6 through the first channel 55 and the second channel 56, respectively. One type of slurry flows through the spiral guide groove 61, which is set with a spiral angle of 120° to generate vortex flow of the slurry. The other type of slurry flows through the guide cavity 62 and mixes with the vortex slurry, greatly improving the mixing uniformity. The mixture is then discharged through the second three-way pipe 5.

[0038] Example 4:

[0039] The basic content is the same as Example 3, except that:

[0040] See Figure 4 and Figure 5 The swirl connector 6 is columnar, and a plurality of spiral guide grooves 61 are provided on the outer circumferential surface of the swirl connector 6. The plurality of spiral guide grooves 61 are evenly arranged in the circumferential direction.

[0041] In this embodiment, the outer diameter of the swirl connector 6 should match the inner diameter of the second liquid outlet 52 of the second three-way pipe 5 so that the slurry can pass normally through the spiral guide groove 61. The number of spiral guide grooves 61 can be 3, and they are evenly distributed on the surface of the swirl connector 6 along the circumferential direction. The first channel 55 is connected to all 3 spiral guide grooves 61 so that the slurry can flow evenly to the 3 evenly distributed spiral guide grooves 61.

[0042] Example 5:

[0043] The basic content is the same as in Example 1, except that:

[0044] The swirl connector 6 is rotatably connected to the first connecting block 53 and the second connecting block 54 along the axial direction. Both the first connecting block 53 and the second connecting block 54 are provided with a rotating groove 57. A rotating block 63 is connected to the outer peripheral surface of the swirl connector 6, and the rotating block 63 is rotatably connected to the rotating groove 57.

[0045] In this embodiment, since the slurry forms a swirling flow under the drive of the spiral guide groove 61, it will also drive the swirling connector 6 to rotate. Through the rotation of the swirling connector 6 itself and the drive of the spiral guide groove 61, the mixing effect of the slurry can be further increased.

[0046] Example 6:

[0047] The basic content is the same as in Example 1, except that:

[0048] The second connecting block 54 is provided with a second steel ball 58 at one end near the swirl connector 6. The size of the second steel ball 58 is larger than the size of the second channel 56. One end of the second steel ball 58 is connected to a compression spring 59, and one end of the compression spring 59 is connected to the second channel 56.

[0049] In this embodiment, when the flow pressure of the second channel 56 is greater than the tension of the compression spring 59, the compression spring 59 will be stretched, causing the second steel ball 58 to move away from the second channel 56. The slurry in the second channel 56 can then enter the guide cavity 62 of the vortex connector 6. When the pressure of the first channel 55 is greater, the compression spring 59 will be compressed, causing the second steel ball 58 to abut against the second channel 56 and block the second channel 56, thus preventing the slurry in the first channel 55 from entering the second channel 56.

[0050] Example 7:

[0051] The basic content is the same as in Example 1, except that:

[0052] See Figure 3 The second outlet end 52 is connected to a drain pipe 7, one end of the drain pipe 7 is connected to the grouting joint 8, the middle part of the drain pipe 7 is connected to a grouting joint 9 through a first ball valve 10, and a second ball valve 11 is installed between the drain pipe 7 and the grouting joint 8.

[0053] In this embodiment, the dual-liquid grouting pump 3 is started, and the two liquids are mixed through the second three-way pipe 5 and enter the drain pipe 7. After the grouting joint 8 is connected to the grouting pipe, the first ball valve 10 is opened to perform grouting. When the grouting pipe is blocked and the grouting pipe needs to be removed to clear the pipe, the second ball valve 11 needs to be opened to release pressure. When the grouting is completed, the grouting pipe is removed, and the second ball valve 11 is opened to clean the second three-way pipe 5 and the pipe.

[0054] Although embodiments of the present invention have been shown and described above, it should be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A dual-liquid grouting device, characterized in that, include: The system comprises a dual-liquid grouting pump (3), two first tee pipes (4), a second tee pipe (5), and a vortex connector (6). The first tee pipe (4) is provided with a first inlet end (41) for inputting grouting liquid and two first outlet ends (42). The second tee pipe (5) is provided with two second inlet ends (51) and two second outlet ends (52). One of the first outlet ends (42) of the two first tee pipes (4) is connected to the two second inlet ends (51) of the second tee pipe (5), and the other first outlet end (42) of the two first tee pipes (4) is connected to the dual-liquid grouting pump (3). The second outlet end (52) of the second tee pipe (5) is connected to the grouting pump (3). The grouting joint (8) is connected to the grouting pipe. The vortex joint (6) is installed in the second three-way pipe (5). The outer circumferential surface of the vortex joint (6) is provided with a spiral guide groove (61). The center of the vortex joint (6) is provided with a guide cavity (62) along the axial direction. One end of the spiral guide groove (61) is connected to one of the second liquid inlet ends (51). The other end of the spiral guide groove (61) is connected to the second liquid outlet end (52). One end of the guide cavity (62) is connected to the other second liquid inlet end (51). The other end of the guide cavity (62) is connected to the second liquid outlet end (52).

2. The dual-liquid grouting device according to claim 1, characterized in that: The first three-way pipe (4) includes a valve seat (43), a connecting pipe (45), an inlet pipe (46), and an outlet pipe (47). The valve seat (43) has a cavity (44). One end of the connecting pipe (45) is connected to the middle of the cavity (44). The first outlet end (42) of the connecting pipe (45) is connected to the dual-liquid grouting pump (3). The upper and lower ends of the cavity (44) are connected to valve covers (48). The lower end of the valve cover (48) has a small opening. The valve cover (48) has a hole (49) and a first steel ball (410) is movably connected inside the valve cover (48). The first steel ball (410) is arranged relative to the hole (49). The first inlet end (41) of the inlet pipe (46) is connected to the lower end of the cavity (44). The inlet end of the outlet pipe (47) is connected to the upper end of the cavity (44). The first outlet end (42) of the outlet pipe (47) is connected to the second inlet end (51) of the second three-way pipe (5).

3. The dual-liquid grouting device according to claim 1, characterized in that: The inner wall of the second three-way pipe (5) is provided with a first connecting block (53) and a second connecting block (54). The first connecting block (53) is installed on one of the second liquid inlet ends (51), and the second connecting block (54) is installed on the other second liquid inlet end (51). The vortex connector (6) is located between the first connecting block (53) and the second connecting block (54). The first connecting block (53) is provided with a first channel (55). One end of the first channel (55) is connected to one of the second liquid inlet ends (51), and the other end of the first channel (55) is connected to one end of the spiral guide groove (61). The second connecting block (54) is provided with a second channel (56). One end of the second channel (56) is connected to the other second liquid inlet end (51), and the other end of the second channel (56) is connected to one end of the guide cavity (62).

4. A dual-liquid grouting device according to claim 3, characterized in that: The swirl connector (6) is columnar, and a plurality of spiral guide grooves (61) are provided on the outer circumferential surface of the swirl connector (6), and the plurality of spiral guide grooves (61) are evenly arranged in the circumferential direction.

5. A dual-liquid grouting device according to claim 4, characterized in that: The swirl connector (6) is axially rotatably connected to the first connecting block (53) and the second connecting block (54).

6. A dual-liquid grouting device according to claim 5, characterized in that: The first connecting block (53) and the second connecting block (54) are both provided with rotating grooves (57). The outer peripheral surface of the swirl connector (6) is connected to a rotating block (63), which is rotatably connected to the rotating groove (57).

7. A dual-liquid grouting device according to claim 3, characterized in that: The second connecting block (54) is provided with a second steel ball (58) at one end near the swirl connector (6). The size of the second steel ball (58) is larger than the size of the second channel (56). One end of the second steel ball (58) is connected to a compression spring (59), and one end of the compression spring (59) is connected inside the second channel (56).

8. A dual-liquid grouting device according to claim 1, characterized in that: The dual-liquid grouting pump (3) is mounted on the frame (1), and a set of movable wheels (2) is mounted on the lower side of the frame (1).

9. A dual-liquid grouting device according to claim 1, characterized in that: The second outlet end (52) is connected to a drain pipe (7), one end of the drain pipe (7) is connected to the grouting joint (8), and the middle part of the drain pipe (7) is connected to a grouting joint (9) through a first ball valve (10).

10. A dual-liquid grouting device according to claim 9, characterized in that: A second ball valve (11) is installed between the drain pipe (7) and the grouting joint (8).

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