Pressure control device for injection rate of grouting body of railroad bed

Abstract

The invention provides a pressure control device for the injection rate of a railroad bed grouting body, and belongs to the technical field of railroad engineering. Comprising a base, a supporting top is installed at one end of the base, a support is installed at the top of the base, a motor is installed at one end of the support, a control center is installed at one end of the support, an alarm indicator lamp is installed on the surface of the control center, and a signal receiving box is installed at the top of the support. A grouting machine is installed at one end of the signal receiving box, and a grouting pipe is installed at the output end of the grouting machine. Through arrangement of the shrinkage adjusting assembly and the plugging adjusting assembly, accurate position feeding and protection of devices in the pipeline, the conveying efficiency of the device body is improved, dust and impurities are prevented from blocking the interior of the pipeline, the slurry conveying speed and completeness are kept, when slurry conveying is finished, backflow of slurry materials is avoided, and the service life of the device body is prolonged. The internal space of the roadbed is filled with slurry, the slurry conveying construction efficiency is improved, and the construction period is shortened.

Description

Technical Field

[0001] The invention relates to the technical field of railway engineering, and in particular to a device for controlling the injection rate and pressure of a railway roadbed grouting body. Background Art

[0002] Railway subgrade is the foundation of railway, and its stability and bearing capacity directly affect the safe operation of railway. In the process of subgrade reinforcement or repair, grouting technology is a commonly used method to inject slurry into the gaps or cracks inside the subgrade to enhance the density and strength of the subgrade.

[0003] The use of grouting pipes can significantly improve construction efficiency. Through the grouting pipes, grouting materials can be accurately transported to the parts that need to be reinforced or filled. The slurry is injected into the roadbed under high pressure to replace the gas and water in the cracks of the rock and soil. After the injected slurry solidifies, the cracks and loose structures can be re-bonded, thereby enhancing the strength of the rock and soil and preventing groundwater seepage.

[0004] However, the existing grouting equipment has shortcomings in controlling the injection rate and pressure of the grouting body, which may lead to uneven grouting, local overpressure of the roadbed or failure to completely fill the gaps, affecting the reinforcement effect. When grouting the roadbed, the internal environment of the roadbed is unknown, and the insertion of the grouting pipe is prone to collision with protruding hard objects, causing damage and deformation of the pipe, and the efficiency and perfection of the use of hard pipes. At the same time, the grouting pipe is extended into the railway roadbed, and the dust and impurities in the internal environment of the roadbed are easy to block the inside of the pipe. When the pipe diameter is blocked, the conveying pipe diameter becomes smaller, the slurry conveying rate is reduced, the slurry covers the inside of the roadbed for a longer time, and the operation time is increased. Moreover, after the slurry is transported, the slurry cannot be prevented from flowing back, resulting in the slurry being unable to fill the internal space of the railway roadbed, resulting in vacancies, and being unable to completely and effectively increase the density and strength of the inside of the roadbed, thereby increasing the construction period. Therefore, the present application provides a railway roadbed grouting injection rate pressure control device to meet the needs. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a device for controlling the injection rate and pressure of a grouting body for a railway roadbed to solve the problems that the existing grouting equipment has deficiencies in controlling the injection rate and pressure of the grouting body, which may lead to uneven grouting, local overpressure of the roadbed or failure to completely fill the gaps, affecting the reinforcement effect. When grouting the roadbed, the internal environment of the roadbed is unknown, and the insertion of the grouting pipe is likely to cause collisions with protruding hard objects, resulting in damage to the pipe and deformation, and the high efficiency and perfection of the use of hard pipes. At the same time, the grouting pipe is inserted into the railway roadbed, and the dust and impurities in the internal environment of the roadbed are likely to block the inside of the pipe. When the pipe diameter is blocked, the conveying pipe diameter becomes smaller, the slurry conveying rate is reduced, the slurry covers the inside of the roadbed for a long time, and the operation time is increased. Moreover, after the slurry is conveyed, the reflux of the slurry cannot be prevented, resulting in the slurry being unable to fill the internal space of the railway roadbed, resulting in vacancies, and the density and strength of the inside of the roadbed cannot be fully and effectively increased, thereby increasing the construction period.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0007] A device for controlling the injection rate and pressure of a grouting body for a railway roadbed, comprising a base, a support top being installed at one end of the base, a bracket being installed at the top of the base, a motor being installed at one end of the bracket, a control center being installed at one end of the bracket, an alarm indicator being installed on the surface of the control center, a signal receiving box being installed at the top of the bracket, a grouting machine being installed at one end of the signal receiving box, a grouting pipe being installed at the output end of the grouting machine, a flow rate sensor being installed on the surface of the grouting pipe, an inner cavity tube being installed on the surface of one end of the grouting pipe away from the grouting machine, and a pressure sensor being installed inside one end of the inner cavity tube; and also comprising a flip adjustment component, a flip adjustment component being installed on the surface of the grouting pipe A node component, the flip adjustment component is used to cover the output end of the slurry delivery pipe; it includes a contraction adjustment component, the output end of the grouting pipe is equipped with a contraction adjustment component, the contraction adjustment component is used to contract the slurry delivery pipe into the pipeline; it includes a plugging adjustment component, the top of the inner cavity tube is equipped with a plugging adjustment component, the plugging adjustment component is used to plug the opening of the slurry delivery pipe; the inside of the flip adjustment component is equipped with a contraction adjustment component, and a plugging adjustment component is arranged between the contraction adjustment component and the flip adjustment component; the pressure sensor is arranged at one end of the inner wall of the inner cavity tube in front of the output end of the grouting pipe, the flow rate sensor is installed inside the surface of the grouting pipe, and an external thread is arranged on the surface of one end of the grouting pipe.

[0008] Optionally, the flip adjustment assembly includes a lever, the lever is installed at one end of the grouting machine, and a gear is installed at one end of the lever.

[0009] Optionally, the bottom of the gear is meshedly connected with a hollow gear, one end of the hollow gear is provided with a rotating cylinder, and the interior of the hollow gear is meshedly connected with an external thread.

[0010] Optionally, an outer sleeve is installed at one end of the rotating drum, a plurality of groups of holes are arranged on the surface of the outer sleeve, and fixed clamping gears are arranged on both sides of the holes of the outer sleeve.

[0011] Optionally, the contraction adjustment assembly includes a collar, which is mounted on the surface of the output end of the grouting pipe, and a pull rod is mounted on one end of the collar.

[0012] Optionally, one end of the pull rod is rotatably connected to a rotating shaft, one end of the rotating shaft is rotatably connected to a scissors frame, and one end of the scissors frame is installed with an extension frame.

[0013] Optionally, the upper and lower ends of the stretching frame are respectively connected to one end of the scissor frame, a sealing plate is installed on the top of the stretching frame, an elastic connecting rod is installed on the top of the sealing plate, and the elastic connecting rod is connected to the inner wall of the inner cavity tube.

[0014] Optionally, the blocking and adjusting assembly includes a slurry delivery pipe, which is installed on the top of the sealing plate, a platform plate is installed on the surface of the slurry delivery pipe, a spring is installed at the bottom of the platform plate, and a side frame is installed at one end of the slurry delivery pipe.

[0015] Optionally, a rack is installed on the inner wall of the side frame, one end of the rack is slidably connected to a slide groove, the slide groove is installed on the inner wall of the side frame, the surface of the rack is meshingly connected to a rotating wheel, both ends of the rotating wheel are installed on the inner wall of the side frame, and a fixed rack is installed at the front end of the rack.

[0016] Optionally, a support arm is installed at one end of the rotating wheel, a cover plate is installed at the front end of the support arm, a sealing tension frame is provided on the surface of the support arm, and the sealing tension frame is installed inside a hole at one end of the side frame.

[0017] Compared with the prior art, the present invention has at least the following beneficial effects:

[0018] In the above scheme, by setting a flip adjustment component, the outer sleeve is placed in a state of covering the inner tube by utilizing the cooperation between the lever, gear, rotating cylinder, external thread, hollow gear, outer sleeve and fixed clamp gear, so as to avoid the grouting pipe from being blocked by collision and impurities when entering the roadbed, which makes it difficult for the slurry to flow out of the inner tube. It is only necessary to wait for the grouting pipe to move to the slurry delivery position, toggle the lever, rotate 45 degrees, make the holes of the inner cavity tube match the holes of the outer sleeve, and then deliver the slurry into the roadbed, avoiding collision with hard objects, causing damage and deformation of the pipe, ensuring the integrity of the slurry delivery pipe and efficient slurry delivery efficiency, while accurately delivering the grouting material to the part that needs to be reinforced, opening the pipe mouth for delivery, avoiding waste of materials, and at the same time, the flexibility and adaptability of slurry delivery shorten the construction period of slurry delivery.

[0019] By setting up a contraction adjustment component and utilizing collars, pull rods, rotating shafts, scissor frames, extension frames, sealing plates and elastic connecting rods, the slurry material can be stored in the internal space between the sealing plates when it is transported to the inner cavity of the inner tube through the grouting pipe. When the grouting pipe moves to the designated slurry delivery position, the scissor frame is pushed upward and the outer sleeve is rotated so that the slurry delivery pipe can accurately transport the slurry material to the inner space of the roadbed. The precise positioning and protection of the internal devices of the pipeline improve the transportation efficiency of the device body, avoid dust and impurities clogging the inside of the pipeline, and ensure the transportation rate of the slurry.

[0020] By setting a sealing and adjusting component, and utilizing the cooperation of the slurry pipe, platform plate, spring, side frame, rack, rotating wheel, fixed rack, support arm, cover plate, sealing tension strip and slide groove, when the outer sleeve rotates, the slurry pipe is retained inside the outer sleeve by the elasticity of the spring. When the hole of the outer sleeve coincides with the outlet of the slurry pipe, the cover plate is ejected and extends to the outside of the hole of the outer sleeve, so that the fixed rack and the fixed card gear contact each other, and drive the rack to move downward, so that the cover plate is opened, and the slurry flows out and is transported to the inside of the railway roadbed. When the slurry delivery is completed, the outer sleeve rotates, and the scissors frame pulls the sealing plate to retract and return it to the inside of the outer sleeve, and the cover plate is closed at the same time. This structure maintains the integrity of the slurry pipe during the transportation of the slurry material, and maintains the speed and integrity of the slurry delivery. At the end of the slurry delivery, the backflow of the slurry material is avoided, and the slurry fills the internal space of the roadbed, thereby improving the efficiency of the slurry delivery construction and shortening the construction period. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable those skilled in the relevant art to make and use the invention.

[0022] Figure 1 This is a schematic diagram of the main three-dimensional structure of a railway roadbed grouting injection rate pressure control device.

[0023] Figure 2 It is a schematic diagram of the side view of the stereoscopic structure of the railway roadbed grouting injection rate pressure control device.

[0024] Figure 3 This is a schematic diagram of the three-dimensional structure of the railway roadbed grouting injection rate pressure control device from another perspective.

[0025] Figure 4 It is a three-dimensional structural schematic diagram of the position relationship between the grouting machine and the flip adjustment component.

[0026] Figure 5 It is a schematic diagram of the three-dimensional structure of the flip adjustment component.

[0027] Figure 6 It is a schematic diagram of the three-dimensional structure of the inner cavity tube.

[0028] Figure 7 It is a schematic diagram of the three-dimensional structure of the contraction adjustment component.

[0029] Figure 8 It is a schematic diagram of the three-dimensional structure of the inner section of the inner cavity tube.

[0030] Fig. 9 It is a schematic diagram of the three-dimensional structure of the blocking and adjusting component.

[0031] Fig.10 It is a schematic diagram of the internal three-dimensional structure of the side frame.

[0032] Reference numerals:

[0033] 1. Base; 2. Support top; 3. Motor; 4. Bracket; 5. Control center; 6. Flip adjustment assembly; 61. Lever; 62. Gear; 63. Drum; 64. External thread; 65. Hollow gear; 66. Outer sleeve; 67. Fixed card gear; 7. Contraction adjustment assembly; 71. Ring; 72. Pull rod; 73. Rotating shaft; 74. Scissor frame; 75. Extension frame; 76. Closing plate; 77. Elastic connecting rod; 8. Sealing adjustment component; 81. Slurry delivery pipe; 82. Platform plate; 83. Spring; 84. Side frame; 85. Rack; 86. Rotating wheel; 87. Fixed rack; 88. Support arm; 89. Cover plate; 810. Sealing tension frame; 811. Slide; 9. Signal receiving box; 10. Grouting machine; 11. Grouting pipe; 12. Inner cavity tube; 13. Pressure sensor; 14. Flow rate sensor; 15. Alarm indicator light.

[0034] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0035] The following is a detailed description of a railway roadbed grouting injection rate pressure control device provided by the present invention in conjunction with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternatives to implement some known technologies; and the accompanying drawings are only for a more specific description of the embodiments, and are not intended to specifically limit the present invention.

[0036] It should be noted that the references to "one embodiment", "an embodiment", "an exemplary embodiment", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0037] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0038] It will be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” means not only “directly on” something, but also includes the meaning of being “on” something with intervening features or layers therebetween, and “on” or “over” means not only “on” or “above” something, but also includes the meaning of being “on” or “above” something with no intervening features or layers therebetween.

[0039] Additionally, spatially relative terms such as "under," "beneath," "lower," "above," "upper," and the like may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as shown in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein may be similarly interpreted accordingly.

[0040] like Figures 1 to 10As shown, an embodiment of the present invention provides a device for controlling the injection rate and pressure of a grouting body for a railway roadbed, comprising a base 1, a support top 2 being installed at one end of the base 1, a bracket 4 being installed at the top of the base 1, a motor 3 being installed at one end of the bracket 4, a control center 5 being installed at one end of the bracket 4, an alarm indicator light 15 being installed on the surface of the control center 5, a signal receiving box 9 being installed at the top of the bracket 4, a grouting machine 10 being installed at one end of the signal receiving box 9, a grouting pipe 11 being installed at the output end of the grouting machine 10, a flow rate sensor 14 being installed on the surface of the grouting pipe 11, an inner cavity tube 12 being installed on the surface of one end of the grouting pipe 11 away from the grouting machine 10, a pressure sensor 13 being installed inside one end of the inner cavity tube 12; and further comprising a flip adjustment component 6, a surface of the grouting pipe 11 being installed It is equipped with a flip adjustment component 6, which is used to cover the output end of the slurry delivery pipe 81; it includes a contraction adjustment component 7, which is installed at the output end of the grouting pipe 11, and the contraction adjustment component 7 is used to contract the slurry delivery pipe 81 into the pipeline; it includes a blocking adjustment component 8, which is installed on the top of the inner cavity tube 12, and the blocking adjustment component 8 is used to block the opening of the slurry delivery pipe 81; the contraction adjustment component 7 is installed inside the flip adjustment component 6, and the plugging adjustment component 8 is arranged between the contraction adjustment component 7 and the flip adjustment component 6; the pressure sensor 13 is arranged at one end of the inner wall of the inner cavity tube 12 in front of the output end of the grouting pipe 11, and the flow rate sensor 14 is installed inside the surface of the grouting pipe 11, and an external thread 64 is arranged on the surface of one end of the grouting pipe 11.

[0041] As an implementation method in this embodiment, Figures 4 to 6As shown, the flip adjustment assembly 6 includes a lever 61, which is mounted at one end of the grouting machine 10, a gear 62 is mounted at one end of the lever 61, a hollow gear 65 is meshedly connected at the bottom of the gear 62, a rotating cylinder 63 is arranged at one end of the hollow gear 65, the interior of the hollow gear 65 is meshedly connected to an external thread 64, an outer sleeve 66 is mounted at one end of the rotating cylinder 63, a plurality of groups of holes are arranged on the surface of the outer sleeve 66, and fixed card gears 67 are arranged on both sides of the holes of the outer sleeve 66. The staff manually shifts the lever 61 and slowly rotates it 45 degrees. At this time, the rotation of the lever 61 drives the gear 62 mounted at one end of the lever 61 to rotate. When the gear 62 rotates synchronously with the lever 61, the hollow gear 65 meshedly connected at one end of the gear 62 is rotated. The hollow gear 65 rotates, and the rotation of the hollow gear 65 drives the rotating drum 63 installed at one end of the hollow gear 65 to rotate together. At the same time, when the hollow gear 65 rotates, the external thread 64 meshing inside the hollow gear 65 moves toward the direction of the inner cavity tube 12. At this time, since the external thread 64 is installed on the surface of one end of the grouting tube 11, when the external thread 64 moves toward the direction of the inner cavity tube 12, the grouting tube 11 moves synchronously toward the direction of the inner cavity tube 12. At the same time, the rotation of the rotating drum 63 drives the outer sleeve 66 installed at one end of the rotating drum 63 to rotate. At this time, when the outer sleeve 66 rotates, the fixed card gears 67 inside the multiple groups of holes on the surface of the outer sleeve 66 move following the moving direction of the outer sleeve 66.

[0042] As an implementation method in this embodiment, Figures 7 and 8 As shown, the contraction adjustment component 7 includes a collar 71, which is mounted on the surface of the output end of the grouting pipe 11, a pull rod 72 is mounted on one end of the collar 71, one end of the pull rod 72 is rotatably connected to a rotating shaft 73, one end of the rotating shaft 73 is rotatably connected to a scissor frame 74, one end of the scissor frame 74 is mounted with an extension frame 75, the upper and lower ends of the extension frame 75 are respectively connected to one end of the scissor frame 74, a sealing plate 76 is mounted on the top of the extension frame 75, and an elastic connecting rod 77 is mounted on the top of the sealing plate 76, and the elastic connecting rod 77 is connected to the inner wall of the inner cavity tube 12, and the collar 71 mounted on the surface of the grouting pipe 11 moves forward, and at the same time, due to the movement of the collar 71 , so that the pull rod 72 installed at both ends of the ring 71 is also pushed forward. When the pull rod 72 is pushed forward, the scissor frame 74 installed on the rotating shaft 73 at one end of the pull rod 72 is subjected to the thrust of the pull rod 72 forward, and the two cross frames of the scissor frame 74 are synchronously opened to the upper and lower ends. When the scissor frame 74 is opened, the extension frame 75 connected to the front end of the scissor frame 74 begins to extend and move from the center position to the upper and lower ends. When the extension frame 75 begins to extend and move, the sealing plate 76 installed on the top of the extension frame 75 is connected to the inner wall of the inner cavity tube 12 through the elastic connecting rod 77 at the top of the sealing plate 76, and moves synchronously toward the inner wall of the inner cavity tube 12.

[0043] As an implementation method in this embodiment, Figures 8 to 10 As shown, the blocking and adjusting assembly 8 includes a slurry delivery pipe 81, which is installed on the top of the sealing plate 76, a platform plate 82 is installed on the surface of the slurry delivery pipe 81, a spring 83 is installed on the bottom of the platform plate 82, one end of the slurry delivery pipe 81 is installed with a side frame 84, the inner wall of the side frame 84 is installed with a rack 85, one end of the rack 85 is slidably connected with a slide groove 811, the slide groove 811 is installed on the inner wall of the side frame 84, the surface of the rack 85 is meshedly connected with a rotating wheel 86, both ends of the rotating wheel 86 are installed on the inner wall of the side frame 84, the front end of the rack 85 is installed with a fixed rack 87, the rotating wheel 86 A support arm 88 is installed at one end, a cover plate 89 is installed at the front end of the support arm 88, a sealing tension frame 810 is arranged on the surface of the support arm 88, and the sealing tension frame 810 is installed inside the hole at one end of the side frame 84. The slurry delivery pipe 81 moves upward synchronously, but at this time, the top of the slurry delivery pipe 81 is on the inner wall of the outer sleeve 66, feeling the rotation of the outer sleeve 66 at the top, and at the same time, the platform plate 82 on the surface of the slurry delivery pipe 81 moves with the slurry delivery pipe 81. When the platform plate 82 moves with the slurry delivery pipe 81, the springs 83 at the bottom of both ends of the platform plate 82 are squeezed and contracted. When the top opening of the slurry pipe 81 is reached, the side frame 84 installed at one end of the slurry pipe 81 moves in the direction of movement of the slurry pipe 81. When the side frame 84 moves upward, it contacts the fixed card gear 67 inside the hole on the surface of the outer sleeve 66. When the side frame 84 continues to rise, the fixed card gear 67 slides over the arc-shaped protrusion on the top of the side frame 84 and meshes with the fixed rack 87 inside the side frame 84. At the same time, since the fixed card gear 67 is fixed to the inside of the outer sleeve 66, the fixed rack 87 is fixed. When the fixed rack 87 stops moving, the slurry pipe 81 is still moving. The rack 85 installed at one end of the fixed rack 87 slides inside the side frame 84. When the rack 85 slides through the slide groove 811 installed on the inner wall of the side frame 84, the rotating wheel 86 engaged with the surface of the rack 85 starts to rotate. When the rotating wheel 86 rotates and moves inside the side frame 84, the support arm 88 installed at one end of the rotating wheel 86 starts to rotate. When the support arm 88 rotates, the cover plate 89 installed at one end of the support arm 88 starts to flip on the inner wall of the slurry delivery pipe 81. At this time, when the support arm 88 flips, the sealing tension frame 810 moves in close contact with the surface of the support arm 88.

[0044] The working principle of the technical solution provided by the present invention is as follows:

[0045] First, move the device base 1 to the side of the railway roadbed, use a drill to drill a hole on one side of the roadbed, then prop up the support top 2 so that the bottom is close to the ground, and gradually raise it to make it higher than the opening of the hole drilled by the drill, then adjust the rotation direction of the grouting machine 10 installed at one end of the bracket 4, so that the grouting pipe 11 installed at the output end of the grouting machine 10 is aligned with the drilling place, and then check whether the working status of the pressure sensor 13 and the flow rate sensor 14 are good through the signal receiving box 9, and slowly send the grouting pipe 11 into the specified depth inside the hole.

[0046] At this time, adjust the flip adjustment component 6, and the staff manually turns the lever 61 to slowly rotate it 45 degrees. At this time, the rotation of the lever 61 drives the gear 62 installed at one end of the lever 61 to rotate. When the gear 62 rotates synchronously with the lever 61, the hollow gear 65 meshingly connected at one end of the gear 62 rotates. The rotation of the hollow gear 65 drives the rotating drum 63 installed at one end of the hollow gear 65 to rotate together. At the same time, when the hollow gear 65 rotates, the external thread 64 meshingly connected inside the hollow gear 65 moves toward the direction of the inner cavity tube 12. At this time, since the external thread 64 is installed on the surface of one end of the grouting pipe 11, when the external thread 64 moves toward the direction of the inner cavity tube 12, the grouting pipe 11 moves synchronously toward the direction of the inner cavity tube 12. At the same time, the rotation of the rotating drum 63 drives the outer sleeve 66 installed at one end of the rotating drum 63 to rotate. At this time, when the outer sleeve 66 rotates, the fixed card gears 67 inside the multiple groups of holes on the surface of the outer sleeve 66 move following the moving direction of the outer sleeve 66.

[0047] When the grouting pipe 11 moves toward the direction of the inner cavity tube 12, the contraction adjustment component 7 starts to adjust, and the ring 71 installed on the surface of the grouting pipe 11 moves forward. At the same time, due to the movement of the ring 71, the pull rod 72 installed at both ends of the ring 71 is also pushed forward. When the pull rod 72 is pushed forward, the scissor frame 74 installed on the rotating shaft 73 at one end of the pull rod 72 is subjected to the thrust of the pull rod 72. At the same time, the two cross frames of the scissor frame 74 are synchronously opened to the upper and lower ends. When the scissor frame 74 is opened, the extension frame 75 connected to the front end of the scissor frame 74 begins to extend from the center position to the upper and lower ends. When the extension frame 75 starts to extend, the sealing plate 76 installed on the top of the extension frame 75 is synchronously moved toward the inner wall of the inner cavity tube 12 through the elastic connecting rod 77 connected to the inner wall of the inner cavity tube 12 at the top of the sealing plate 76.

[0048] When the sealing plate 76 moves toward the inner wall of the inner cavity tube 12, the blocking adjustment component 8 starts to adjust, and the slurry delivery tube 81 moves upward synchronously, but at this time the top of the slurry delivery tube 81 is on the inner wall of the outer sleeve 66, feeling the rotation of the outer sleeve 66 at the top, and at the same time, the platform plate 82 on the surface of the slurry delivery tube 81 moves with the slurry delivery tube 81. When the platform plate 82 moves with the slurry delivery tube 81, the springs 83 at the bottom of both ends of the platform plate 82 are squeezed and contracted. When the outer sleeve 66 rotates to the top opening of the slurry delivery tube 81, the side frame 84 installed at one end of the slurry delivery tube 81 moves in the direction of movement of the slurry delivery tube 81. When the side frame 84 moves upward, it contacts the fixed card gear 67 inside the hole on the surface of the outer sleeve 66. When the side frame 84 continues to rise, the fixed card gear 67 slides over the arc-shaped protrusion at the top of the side frame 84 and contacts the side The fixed racks 87 inside the frame 84 are meshed with each other. At the same time, since the fixed card gear 67 is fixed to the inside of the outer sleeve 66, the fixed rack 87 is fixed. When the fixed rack 87 stops moving, the slurry delivery pipe 81 is still moving, so the rack 85 installed at one end of the fixed rack 87 slides inside the side frame 84. When the rack 85 slides through the slide groove 811 installed on the inner wall of the side frame 84, the rotating wheel 86 meshed with the surface of the rack 85 starts to rotate. When the rotating wheel 86 rotates and moves inside the side frame 84, the support arm 88 installed at one end of the rotating wheel 86 starts to rotate. When the support arm 88 rotates, the cover plate 89 installed at one end of the support arm 88 starts to flip over on the inner wall of the slurry delivery pipe 81. At this time, when the support arm 88 flips, the sealing tension frame 810 moves in close contact with the surface of the support arm 88.

[0049] When the cover plate 89 is opened, the motor 3 is started, and the slurry material is transported to the grouting pipe 11 through the grouting machine 10. The slurry reaches the inner cavity tube 12. The slurry inside the grouting pipe 11 is first detected by the flow rate sensor 14, and then passes through the output end of the grouting pipe 11, acts on the surface of the pressure sensor 13, and is then transported to the inside of the roadbed through the slurry delivery pipe 81. At the same time, the pressure sensor 13 and the flow rate sensor 14 first transmit the data to the signal receiving box 9, and the signal receiving box 9 then feeds the data back to the control center 5. When the pressure and flow rate are abnormal, the alarm indicator light 15 on the surface of the control center 5 lights up, and an alarm signal is automatically issued to prompt the staff to make adjustments.

[0050] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, but those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0051] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A device for controlling the injection rate and pressure of a railway roadbed grouting body, characterized in that: It comprises a base, a supporting top is installed at one end of the base, a bracket is installed on the top of the base, a motor is installed at one end of the bracket, a control center is installed at one end of the bracket, an alarm indicator light is installed on the surface of the control center, a signal receiving box is installed on the top of the bracket, a grouting machine is installed at one end of the signal receiving box, a grouting pipe is installed at the output end of the grouting machine, a flow rate sensor is installed on the surface of the grouting pipe, an inner cavity tube is installed on the surface of one end of the grouting pipe away from the grouting machine, and a pressure sensor is installed inside one end of the inner cavity tube; It also includes a flip adjustment component, the surface of the grouting pipe is equipped with a flip adjustment component, and the flip adjustment component is used to cover the output end of the grouting pipe; It includes a contraction adjustment component, the output end of the grouting pipe is equipped with a contraction adjustment component, and the contraction adjustment component is used to contract the grouting pipe into the pipeline; It comprises a plugging and adjusting component, the top of the inner cavity tube is equipped with a plugging and adjusting component, and the plugging and adjusting component is used to plug the opening of the slurry delivery pipe; A contraction adjustment component is installed inside the flip adjustment component, and a blocking adjustment component is arranged between the contraction adjustment component and the flip adjustment component; The pressure sensor is arranged at one end of the inner wall of the inner cavity tube in front of the output end of the grouting pipe, the flow rate sensor is installed inside the surface of the grouting pipe, and an external thread is arranged on the surface of one end of the grouting pipe.

2. The device for controlling the injection rate and pressure of the railway roadbed grouting body according to claim 1, characterized in that: The flip adjustment component includes a lever, which is installed at one end of the grouting machine, and a gear is installed at one end of the lever.

3. The device for controlling the injection rate and pressure of the railway roadbed grouting body according to claim 2, characterized in that: The bottom of the gear is meshedly connected with a hollow gear, one end of the hollow gear is provided with a rotating cylinder, and the interior of the hollow gear is meshedly connected with an external thread.

4. The device for controlling the injection rate and pressure of the railway roadbed grouting body according to claim 3, characterized in that: An outer sleeve is installed at one end of the rotating drum, a plurality of groups of holes are arranged on the surface of the outer sleeve, and fixed clamping gears are arranged on both sides of the holes of the outer sleeve.

5. The device for controlling the injection rate and pressure of the railway roadbed grouting body according to claim 4, characterized in that: The contraction adjustment component comprises a collar, which is mounted on the surface of the output end of the grouting pipe, and a pull rod is mounted on one end of the collar.

6. The device for controlling the injection rate and pressure of the railway roadbed grouting body according to claim 5, characterized in that: One end of the pull rod is rotatably connected to a rotating shaft, one end of the rotating shaft is rotatably connected to a scissor frame, and one end of the scissor frame is installed with an extension frame.

7. The device for controlling the injection rate and pressure of the railway roadbed grouting body according to claim 6, characterized in that: The upper and lower ends of the stretching frame are respectively connected to one end of the scissor frame, a sealing plate is installed on the top of the stretching frame, an elastic connecting rod is installed on the top of the sealing plate, and the elastic connecting rod is connected to the inner wall of the inner cavity tube.

8. The device for controlling the injection rate and pressure of the railway roadbed grouting body according to claim 7, characterized in that: The plugging and adjusting assembly includes a slurry delivery pipe, which is installed on the top of the sealing plate. A platform plate is installed on the surface of the slurry delivery pipe, a spring is installed at the bottom of the platform plate, and a side frame is installed at one end of the slurry delivery pipe.

9. The device for controlling the injection rate and pressure of the railway roadbed grouting body according to claim 8, characterized in that: A rack is installed on the inner wall of the side frame, one end of the rack is slidably connected to a slide groove, the slide groove is installed on the inner wall of the side frame, the surface of the rack is meshingly connected to a rotating wheel, both ends of the rotating wheel are installed on the inner wall of the side frame, and a fixed rack is installed at the front end of the rack.

10. The device for controlling the injection rate and pressure of the railway roadbed grouting body according to claim 9, characterized in that: A support arm is installed at one end of the rotating wheel, a cover plate is installed at the front end of the support arm, a sealing tension frame is arranged on the surface of the support arm, and the sealing tension frame is installed inside a hole at one end of the side frame.

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