Grouting equipment for tunnel construction

Abstract

The invention discloses grouting equipment for tunnel construction, and relates to the technical field of grouting equipment, the grouting equipment comprises a double-liquid grouting machine, the double-liquid grouting machine comprises two pump heads, discharge ports of the pump heads are connected with conveying pipes, and the other ends of the conveying pipes are connected with a grouting mixer; the grouting mixer is of a three-way pipe structure, and a feeding port of the grouting mixer is connected with the conveying pipe through a valve. A support is installed on the grouting mixer, and the discharging assembly is installed on the support; through cooperative arrangement of the discharging assembly and the valve control assembly, air can be injected into the two feeding ends of the grouting mixer, mixed grout in the grouting mixer is discharged through air pressure, closing of a valve can be synchronously achieved in the process, backflow of the mixed grout is avoided, the grouting equipment is convenient and rapid to operate, and the grouting efficiency is improved. The problem that mixed grout in a grouting mixer of double-liquid grouting equipment is easy to solidify and block can be effectively solved.

Description

Technical Field

[0001] The invention relates to the technical field of grouting equipment, and in particular to grouting equipment for tunnel construction. Background Art

[0002] During tunnel construction, tunnel grouting is a commonly used construction process, which can play a role in anti-seepage, foundation pit reinforcement, and prevention of ground subsidence. Tunnel grouting is divided into two forms: single-liquid grouting and double-liquid grouting. Compared with traditional single-liquid grouting, double-liquid grouting is achieved by mixing two slurries during grouting, which can achieve a faster solidification effect and is widely used in tunnel grouting anti-seepage construction.

[0003] The double-liquid grouting machine is a commonly used existing grouting equipment. It needs to cooperate with the grouting mixer to mix two slurries for grouting. Since the solidification time of the mixed slurry is short, in the actual construction process, the grouting port needs to be replaced after the grouting of a certain grouting port is completed. It takes a certain time to stir the slurry raw materials into slurry. During this period of time, the mixed slurry in the grouting mixer is easy to solidify, resulting in internal blockage of the grouting mixer, affecting the next grouting construction; in addition, when the discharge pipe of the grouting mixer is docked or detached from the grouting port, its outer wall is easy to adhere to the mixed slurry. When the slurry solidifies on the outer wall of the grouting mixer, it will affect the docking of the next grouting port. Therefore, a grouting equipment for tunnel construction is needed to solve the above problems. Summary of the invention

[0004] The object of the present invention is to provide a grouting device for tunnel construction to solve the problems existing in the prior art mentioned in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A grouting device for tunnel construction, comprising:

[0007] A double-liquid grouting machine, the double-liquid grouting machine comprises two pump heads, the discharge port of the pump head is connected to a delivery pipe, and the other end of the delivery pipe is connected to a grouting mixer;

[0008] The grouting mixer is a three-way pipe structure, and the feed port of the grouting mixer is connected to the delivery pipe through a valve;

[0009] A discharge assembly, wherein a bracket is installed on the grouting mixer, and the discharge assembly is installed on the bracket and is used to quickly discharge the mixed slurry in the grouting mixer when the grouting is stopped;

[0010] A valve control component, which is installed on the bracket and is used to cooperate with the discharge operation of the discharge component to synchronously control the opening and closing of the valve through the operation of the discharge component;

[0011] A pipe wall cleaning component is installed on the discharge pipe wall of a grouting mixer, and is used to remove slurry adhered to the surface of the discharge pipe wall.

[0012] Preferably, the discharge assembly includes an air pipe, an air outlet one-way valve and a piston cylinder, the two ends of the air pipe are respectively connected to the side walls at the two feed ports of the grouting mixer, the two ends of the air pipe are installed with air outlet one-way valves to prevent slurry from entering the air pipe, the bracket is installed with a piston cylinder, a piston is provided in the piston cylinder, a piston rod is also slidably connected to the piston cylinder, the piston rod is fixedly connected to the piston, a handle is installed at one end of the piston rod, an air inlet and an air outlet are provided on one side of the piston cylinder, an air inlet one-way valve is installed on the air inlet, and the air outlet is connected to the air pipe through a pipeline.

[0013] Preferably, the valve control assembly includes a drive frame, a slide rail and a rack, the drive frame is slidably mounted on the bracket via the slide rail, a gear is keyed on the control shaft of the valve, a rack that can mesh with the gear is mounted on the drive frame, a connecting plate is connected to the drive frame, and one end of the piston rod is fixedly connected to the connecting plate.

[0014] Preferably, the pipe wall cleaning assembly includes a cleaning ring and a connecting frame, the cleaning ring is slidably connected to the discharge pipe wall of the grouting mixer, the connecting frame is connected to the cleaning ring, and one end of the connecting frame is connected to the driving frame.

[0015] Preferably, the dual-liquid grouting machine also includes a frame, a drive motor and a casing, the pump head, the drive motor and the casing are all installed on the frame, a transmission box is provided in the casing, the drive motor is installed at the input end of the transmission box, and the pump head is installed at the output end of the transmission box, which is used to drive the pump head to transport the slurry.

[0016] Preferably, a directional wheel is provided on one side of the lower end of the frame, and a steering wheel is provided on the other side of the lower end of the frame.

[0017] Preferably, the front end of the cleaning ring is configured as a conical surface structure.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The present invention can inject air into the two feed ends of the grouting mixer through the coordinated arrangement of the discharge component and the valve control component, and use the air pressure to discharge the mixed slurry in the grouting mixer. In the process, the valve can be closed synchronously to avoid the backflow of the mixed slurry. The grouting equipment is easy and quick to operate, and can effectively solve the problem of easy solidification and clogging of the mixed slurry in the grouting mixer of the double-liquid grouting equipment.

[0020] 2. The present invention can also clean the slurry adhering to the discharge pipe wall of the grouting mixer during the process of discharging the grouting mixer through the coordinated arrangement of the valve control component and the pipe wall cleaning component, thereby preventing the slurry on the discharge pipe wall of the grouting mixer from solidifying and affecting the connection between the grouting mixer and the grouting port. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0022] Figure 2 It is a structural schematic diagram of the double-liquid grouting machine of the present invention.

[0023] Figure 3 It is a top view of the stereoscopic structure of the grouting mixer of the present invention.

[0024] Figure 4 It is a schematic diagram of the stereoscopic structure of the grouting mixer of the present invention when viewed from above.

[0025] Figure 5 It is a schematic diagram of the structure of the discharge assembly of the present invention.

[0026] Figure 6 It is a schematic diagram of the cross-sectional structure of the piston cylinder of the present invention.

[0027] In the figure: 1. double-liquid grouting machine; 11. frame; 12. pump head; 13. drive motor; 14. shell; 2. delivery pipe; 3. grouting mixer; 4. valve; 5. bracket; 6. discharge assembly; 61. air delivery pipe; 62. air outlet check valve; 63. piston cylinder; 64. piston; 65. piston rod; 66. handle; 67. air inlet check valve; 68. air outlet; 7. valve control assembly; 71. drive frame; 72. slide rail; 73. rack; 74. gear; 75. connecting plate; 8. pipe wall cleaning assembly; 81. cleaning ring; 82. connecting frame. DETAILED DESCRIPTION

[0028] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0029] See also Figure 1-6 , the present invention provides the following technical solutions:

[0030] A grouting equipment for tunnel construction, comprising: a double-liquid grouting machine 1, wherein the double-liquid grouting machine 1 comprises two pump heads 12, and the double-liquid grouting machine 1 also comprises a frame 11, a drive motor 13 and a shell 14, wherein the pump head 12, the drive motor 13 and the shell 14 are all mounted on the frame 11, a transmission box is arranged in the shell 14, the drive motor 13 is arranged at the input end of the transmission box, and the pump head 12 is arranged at the output end of the transmission box, so as to drive the pump head 12 to transport slurry; a directional wheel is arranged on one side of the lower end of the frame 11, and a steering wheel is arranged on the other side of the lower end of the frame 11, and the double-liquid grouting machine 1 is conveniently moved by the cooperation of the directional wheel and the steering wheel.

[0031] The discharge port of the pump head 12 is connected to a delivery pipe 2, and the other end of the delivery pipe 2 is connected to a grouting mixer 3; the grouting mixer 3 is a three-way pipe structure, and the feed port of the grouting mixer 3 is connected to the delivery pipe 2 through a valve 4. The valve 4 can control the connection between the delivery pipe 2 and the grouting mixer 3, providing assistance for the discharge component 6.

[0032] A discharge assembly 6, a bracket 5 is installed on the grouting mixer 3, and the discharge assembly 6 is installed on the bracket 5, and is used to quickly discharge the mixed slurry in the grouting mixer 3 when the grouting is stopped, so as to prevent the mixed slurry from solidifying in the grouting mixer 3 and affecting the use of grouting; the discharge assembly 6 includes an air pipe 61, an air outlet check valve 62 and a piston cylinder 63, and the two ends of the air pipe 61 are respectively connected to the side walls at the two feed ports of the grouting mixer 3, and the two ends of the air pipe 61 are installed with an air outlet check valve 62 to prevent the slurry from entering the air pipe 61, and the bracket 5 is installed on the A piston cylinder 63 is installed, and a piston 64 is arranged inside the piston cylinder 63. A piston rod 65 is also slidably connected to the piston cylinder 63. The piston rod 65 is fixedly connected to the piston 64. A handle 66 is installed at one end of the piston rod 65. An air inlet and an air outlet 68 are arranged on one side of the piston cylinder 63. An air inlet check valve 67 is installed on the air inlet, and the air outlet 68 is connected to the air supply pipe 61 through a pipeline. Air can be supplied to the air supply pipe 61 by pushing the handle 66, and the mixed slurry in the grouting mixer 3 can be discharged under the pushing action of the gas pressure.

[0033] A valve control assembly 7 is installed on the bracket 5. The valve control assembly 7 is used to cooperate with the discharging operation of the discharging assembly 6, and synchronously control the opening and closing of the valve 4 through the operation of the discharging assembly 6; the valve control assembly 7 includes a drive frame 71, a slide rail 72 and a rack 73. The drive frame 71 is slidably installed on the bracket 5 through the slide rail 72. A gear 74 is keyed on the control shaft of the valve 4. A rack 73 capable of meshing with the gear 74 is installed on the drive frame 71. A connecting plate 75 is connected to the drive frame 71, and one end of the piston rod 65 is fixedly connected to the connecting plate 75; in the process of pushing the handle 66 to drive the piston rod 65 to move, the discharging assembly 6 can synchronously drive the valve control assembly 7 to close the valve 4, so that the mixed slurry in the grouting mixer 3 is discharged from the discharge pipe.

[0034] A pipe wall cleaning component 8, wherein the pipe wall cleaning component 8 is installed on the discharge pipe wall of the grouting mixer 3, and the pipe wall cleaning component 8 is used for removing the slurry adhered to the surface of the discharge pipe wall; the pipe wall cleaning component 8 comprises a cleaning ring 81 and a connecting frame 82, wherein the cleaning ring 81 is slidably connected to the discharge pipe wall of the grouting mixer 3, and the connecting frame 82 is connected to the cleaning ring 81, and one end of the connecting frame 82 is connected to the driving frame 71; the front end of the cleaning ring 81 is set as a conical surface structure, and through the design of the conical surface structure at the front end of the cleaning ring 81, it is possible to facilitate the removal of the solidified slurry on the discharge pipe wall of the grouting mixer 3, so as to avoid affecting the connection between the discharge pipe of the grouting mixer 3 and the grouting hole.

[0035] The working process of the present invention is as follows:

[0036] When grouting construction is required for the tunnel, the double-liquid grouting machine 1 conveys the two slurries to the grouting mixer 3 through the conveying pipe 2. The slurries are mixed in the grouting mixer 3 and then injected into the grouting port to realize the double-liquid grouting construction. When grouting of a grouting hole is completed and grouting is required again after a certain period of time, the staff holds the grouting mixer 3 and pushes the handle 66 to drive the piston rod 65 to move. The piston rod 65 drives the driving frame 71 to slide through the connecting plate 75. The driving frame 71 drives the rack 73 installed thereon to move. The rack 73 drives the gear 74 to rotate, so that the two valves 4 on the grouting mixer 3 are closed.

[0037] The piston rod 65 synchronously drives the piston 64 to slide in the piston cylinder 63, and the air in the piston cylinder 63 is squeezed into the air pipe 61. The air pipe 61 fills the air into the grouting mixer 3 through the air outlet one-way valve 62, and uses the air pressure to discharge the mixed slurry in the grouting mixer 3 from the discharge port to prevent the slurry from solidifying and causing blockage in the grouting mixer 3.

[0038] During the sliding process of the driving frame 71, the driving frame 71 drives the cleaning ring 81 to slide on the discharge pipe wall of the grouting mixer 3 through the connecting frame 82, so as to clean the slurry adhering to the discharge pipe wall of the grouting mixer 3, and prevent the slurry solidification from affecting the docking of the grouting mixer 3 and the grouting port; the various structural designs of the grouting equipment are compact and tight, practical, convenient and fast, and effectively solve the problem that the mixed slurry in the grouting mixer 3 of the double-liquid grouting equipment is easy to solidify and clog; the valve 4 can be opened and the discharge assembly 6 can be reset by pulling the handle 66, which is convenient for the next discharge.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A grouting equipment for tunnel construction, characterized in that: include: A double-liquid grouting machine (1), the double-liquid grouting machine (1) comprising two pump heads (12), the discharge port of the pump head (12) being connected to a delivery pipe (2), and the other end of the delivery pipe (2) being connected to a grouting mixer (3); The grouting mixer (3) is a three-way pipe structure, and the feed port of the grouting mixer (3) is connected to the delivery pipe (2) through a valve (4); A discharge assembly (6), wherein a bracket (5) is mounted on the grouting mixer (3), and the discharge assembly (6) is mounted on the bracket (5) and is used to quickly discharge the mixed slurry in the grouting mixer (3) when grouting is stopped; A valve control assembly (7), the valve control assembly (7) being mounted on the bracket (5), the valve control assembly (7) being used to cooperate with the discharge operation of the discharge assembly (6) and synchronously controlling the opening and closing of the valve (4) through the operation of the discharge assembly (6); A pipe wall cleaning component (8) is installed on the discharge pipe wall of the grouting mixer (3), and is used to remove slurry adhered to the surface of the discharge pipe wall.

2. A grouting equipment for tunnel construction according to claim 1, characterized in that: The discharge assembly (6) comprises an air supply pipe (61), an air outlet non-return valve (62) and a piston cylinder (63). The two ends of the air supply pipe (61) are respectively connected to the side walls at the two feed ports of the grouting mixer (3). The two ends of the air supply pipe (61) are both installed with air outlet non-return valves (62) for preventing slurry from entering the air supply pipe (61). The bracket (5) is installed with a piston cylinder (63). A piston (64) is arranged in the piston cylinder (63). A piston rod (65) is also slidably connected to the piston cylinder (63). The piston rod (65) is fixedly connected to the piston (64). A handle (66) is installed at one end of the piston rod (65). An air inlet and an air outlet (68) are arranged on one side of the piston cylinder (63). An air inlet non-return valve (67) is installed on the air inlet. The air outlet (68) is connected to the air supply pipe (61) through a pipeline.

3. A grouting equipment for tunnel construction according to claim 2, characterized in that: The valve control assembly (7) comprises a drive frame (71), a slide rail (72) and a rack (73); the drive frame (71) is slidably mounted on the bracket (5) via the slide rail (72); a gear (74) is keyed on the control shaft of the valve (4); a rack (73) capable of meshing with the gear (74) is mounted on the drive frame (71); a connecting plate (75) is connected to the drive frame (71); and one end of the piston rod (65) is fixedly connected to the connecting plate (75).

4. A grouting equipment for tunnel construction according to claim 3, characterized in that: The pipe wall cleaning assembly (8) comprises a cleaning ring (81) and a connecting frame (82), wherein the cleaning ring (81) is slidably connected to the discharge pipe wall of the grouting mixer (3), and the connecting frame (82) is connected to the cleaning ring (81), and one end of the connecting frame (82) is connected to the driving frame (71).

5. The grouting equipment for tunnel construction according to claim 1, characterized in that: The double-liquid grouting machine (1) further comprises a frame (11), a driving motor (13) and a casing (14); the pump head (12), the driving motor (13) and the casing (14) are all mounted on the frame (11); a transmission box is arranged inside the casing (14); the driving motor (13) is mounted on the input end of the transmission box; the pump head (12) is mounted on the output end of the transmission box, and is used to drive the pump head (12) to transport slurry.

6. A grouting equipment for tunnel construction according to claim 5, characterized in that: A directional wheel is provided on one side of the lower end of the frame (11), and a steering wheel is provided on the other side of the lower end of the frame (11).

7. The grouting equipment for tunnel construction according to claim 4, characterized in that: The front end of the cleaning ring (81) is configured as a conical surface structure.

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