Novel grouting device based on compressed air pressurization
Through a new grouting device based on compressed air boost, the existing motor grouting equipment is solved, which is noisy, complex structure and difficult to maintain, and the slurry forms a stable state during grouting, ensuring that the slurry is completely poured into the crack gap, and improving grouting efficiency and reliability.
Patent Information
- Application Number
- CN202420237635.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-31
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2034-01-31
AI Technical Summary
The existing motor grouting equipment is noisy, complex in structure and difficult to maintain, and the slurry cannot form a stable state during grouting, resulting in the slurry not being completely poured into the crack gap.
A new grouting device based on compressed air pressure is adopted, including a power cylinder, a grouting cylinder and an air compressor. The piston head is driven by the power cylinder, and combined with the feed and discharge control valves in the grouting cylinder, efficient grouting of crack gaps is achieved.
The slurry is achieved to form a stable pressure state during the grouting process, ensuring that the slurry can be completely poured into the crack gap, reducing equipment noise and structural complexity, and improving grouting efficiency and reliability.
Smart Images
Figure CN222541472U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of grouting technology, in particular to a new type of grouting device based on compressed air boosting Background Art
[0002] In order to ensure the stability and service life of the dam body, modern water conservancy projects usually use concrete, steel bars and other materials as the construction materials of the dam body. Although its service life is long, the dam body will be affected by the natural environment for a long time, and as a result, its appearance and structural functions may be damaged and decayed to varying degrees, especially cracks. In addition, if the construction technology is poor or there are other human factors during the construction of the dam body, cracks may appear in the dam body in a short time. If the cracks in the dam body are not repaired in time, the steel structure inside the dam body is easily corroded by external substances, such as rust and acid rain corrosion, resulting in reduced strength and stability of the dam body. As the saying goes, "a thousand-mile embankment is destroyed by ants." If there are many cracks, cavities and other defects in the dam body, it will be on the verge of collapse over time under the action of greater penetration.
[0003] Grouting technology is to prepare certain chemical materials (inorganic or organic materials) into a true solution, and use grouting equipment to drive it into the dam body strata or gaps. The slurry discharges the moisture and air in the cracks of the dam body by filling, penetrating and compacting, so that the original cracks or loose soil particles are cemented into a whole, forming a combination of new structure, high strength, high waterproof performance and good chemical properties. It is a waterproofing and concrete defect reinforcement technology.
[0004] The existing grouting equipment usually used for grouting cracks in dam bodies is mostly motor grouting equipment, which generally includes motor, plunger oil pump, hydraulic valve and other components. The motor drives the plunger oil pump to complete the grouting work. However, this type of motor grouting equipment not only has a large working noise of the motor, but also has a complex structure of the motor and its transmission device, which is prone to maintenance difficulties. In addition, motor grouting is a way of directly pushing the slurry into the gap without any buffering, and it is impossible to ensure that the slurry is in a stable pressure state, which will cause the slurry to fail to reach the specified grouting pressure and fail to fully inject the slurry.
[0005] To this end, the applicant has conducted useful explorations and attempts and found a solution to the above-mentioned problem. The solution to be introduced below is produced under this background. Utility Model Content
[0006] The technical problem to be solved by the utility model is to provide a new type of grouting device based on compressed air pressurization in view of the deficiencies and defects of the prior art.
[0007] The technical problem solved by the present invention can be achieved by adopting the following technical solutions:
[0008] A novel grouting device based on compressed air boosting, comprising a box body, a power cylinder is installed in the box body, the power cylinder is connected to an air compressor, the power cylinder has a piston rod, and a first piston head located in the power cylinder and connected to one end of the piston rod, characterized in that it also includes a grouting cylinder, the other end of the piston rod extends into the grouting cylinder and is connected to a second piston head located in the grouting cylinder, the bottom end of the grouting cylinder away from the end of the power cylinder is provided with a grouting cylinder lower end cover, and the top end is provided with a grouting cylinder upper end cover; the grouting cylinder lower end cover and the grouting cylinder upper end cover are respectively provided with a grouting cylinder feed port and a grouting cylinder discharge port; a grouting cylinder feed control valve and a grouting cylinder discharge control valve are respectively provided in the grouting cylinder and corresponding to the grouting cylinder feed port and the grouting cylinder discharge port, and are respectively provided with a sealing and sliding configuration;
[0009] The grouting cylinder discharge control valve comprises an upper sealing ring plate and an upper sealing valve body, wherein the upper sealing valve body is arranged between the upper sealing ring plate and the grouting cylinder discharge port, and the upper sealing valve body has an integrally formed first annular groove and a second truncated cone arranged in the opposite direction to the notch of the first annular groove; the outer side surface of the first annular groove is in sealing sliding contact with the inner surface of the grouting cylinder;
[0010] The grouting cylinder feed control valve has the same structure, including a lower sealing ring plate and a lower sealing valve body, and the lower sealing valve body is arranged between the lower sealing ring plate and the grouting cylinder feed port;
[0011] The circular diameter of the second truncated cone is larger than the inner circle hole diameters of the upper and lower sealing ring plates, and smaller than the circular groove diameter of the first annular groove;
[0012] A plurality of valve holes are arranged in the first annular groove and in an annular array around the second truncated cone;
[0013] When the power cylinder drives the piston head to move closer to the power cylinder, the grouting cylinder is in a negative pressure state. At this time, the lower sealing valve body is lifted upward to the limit position of the lower sealing ring plate, and the slurry is sucked into the grouting cylinder from the valve hole; on the other hand, due to the dual effects of the gravity and negative pressure suction of the upper sealing valve body, the end surface of the second truncated cone is close to the lower sealing ring plate to prevent the slurry from being sucked back;
[0014] When the power cylinder drives the piston head to move away from the power cylinder, the grouting cylinder is in a high-pressure state. At this time, due to the dual effects of gravity and pressure, the end face of the second cone of the lower sealing valve body is close to the inlet of the grouting cylinder to block the outflow of slurry; on the other hand, the upper sealing valve body is lifted up by the force and presses against the inner surface of the upper end cover of the grouting cylinder. The slurry flows through the ring hole of the upper sealing ring plate and the flow gap generated by the separation of the upper sealing valve body and the upper sealing ring plate, and finally flows to the outlet of the grouting cylinder through the valve hole.
[0015] Preferably, the second truncated cone is provided with a second annular groove, a fluororubber seal is arranged in the second annular groove, and the fluororubber seal is fixed to the upper and lower sealing valve bodies by screws.
[0016] Preferably, a first truncated cone is protrudingly provided at the center of the bottom surface of the first annular groove, and the first truncated cone is flush with the top surface of the annular groove of the first annular groove.
[0017] Preferably, it also includes a data acquisition module, an analog quantity to RS485 acquisition module, and a data processing execution module which are electrically connected; the data acquisition module includes a pressure sensor and a displacement sensor, the pressure sensor is fixed on the box body through the pressure sensor, the grouting cylinder has two discharge ports, and the pressure port of the pressure sensor is connected to one of the discharge ports of the grouting cylinder through a pipeline and a joint; the displacement sensor is fixed in the box body through a displacement sensor fixing bracket, and its displacement ruler is connected to the first piston head through a connecting rod;
[0018] The data processing execution module includes a mainboard, a central processing unit, a touch screen, a relay, and a solenoid valve. The central processing unit is installed on the mainboard, the touch screen is connected to the mainboard through the HIDM serial port on the mainboard, the relay is electrically connected to the mainboard, and the solenoid valve is electrically connected to the relay. The solenoid valve is a two-position three-way solenoid valve installed at the air ports at both ends of the power cylinder; the displacement value is converted by the analog quantity to RS485 acquisition module signal and then electrically transmitted to the data processing execution module via wireless or RS485 serial port for processing, and the processed data signal information is finally transmitted to the touch screen. At the same time, the data processing execution module controls the corresponding solenoid valve to be energized according to the displacement value data fed back by the displacement sensor to control the grouting amount, and controls the air intake amount of the power cylinder according to the pressure feedback from the pressure sensor and the system set pressure value.
[0019] Preferably, the power cylinder and the grouting cylinder are fixed on the box through cylinder brackets, the power cylinder is located inside the box, the grouting cylinder is located outside the box, and the displacement sensor is a linear displacement sensor and is mounted in the box through a displacement sensor bracket.
[0020] Preferably, a handle is installed on the top surface of the box body, a box opening lock is installed on the left and right sides of the box body, and a metal foot pad is installed on the bottom surface of the box body.
[0021] Preferably, the upper and lower sealing ring plates are integrally formed with the grouting cylinder, and the grouting cylinder is divided into a large grouting cylinder and a small grouting cylinder. The upper and lower sealing valve bodies are respectively located on the upper and lower sides of the small grouting cylinder. The outer end surface of the small grouting cylinder is sealed by the upper and lower end covers of the grouting cylinder and the end cover sealing ring, and the stroke range of the second piston head is limited within the large grouting cylinder.
[0022] Due to the adoption of the above technical solution, the beneficial effects of the utility model are:
[0023] One of the beneficial effects of the utility model is that the device uses an air compressor, a power cylinder and a grouting cylinder to grout cracks and gaps based on air compression, which meets the pressure requirements for crack grouting. During the grouting process, the slurry forms a stable pressure state, and the slurry is better poured into the cracks and gaps.
[0024] One of the beneficial effects of the utility model is that the structural design of the grouting cylinder feed control valve and the grouting cylinder discharge control valve is reasonable and excellent. When grouting, the grouting cylinder feed control valve uses the negative pressure suction in the grouting cylinder to open the lower sealing valve body to complete the grouting work. At the same time, the grouting cylinder discharge control valve is affected by its own gravity and negative pressure suction to make the upper sealing valve body close to the upper sealing ring plate to prevent the slurry from flowing out. When slurry is discharged, the grouting cylinder discharge control valve is affected by the high-pressure driving force in the high grouting cylinder to lift the upper sealing valve body upward, and the slurry flows out of the valve hole under pressure to complete the slurry discharge work. At the same time, the grouting cylinder feed control valve is affected by its own gravity and high pressure to make the lower sealing valve body close to the inner surface of the lower end cover of the grouting cylinder to prevent the slurry from flowing out of the grouting cylinder feed control valve, so that a stable air pressure is formed in the cylinder.
[0025] The third beneficial effect of the utility model is that the grouting cylinder of the device has low noise, compact layout and is easy to carry, excellent structural design and high reliability. The utility model is provided with a second annular groove, and a fluororubber seal is arranged in the second annular groove. The fluororubber seal is fixed to the upper and lower sealing valve bodies by screws. The setting of the fluororubber seal not only plays a sealing role, but also plays a role in protecting the sealing valve body. Under normal circumstances, it is only necessary to replace the fluororubber seal regularly, and the maintenance cost is also low. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 The figure is a schematic diagram of the appearance structure of an embodiment of the utility model.
[0027] Figure 2 This is an embodiment of the utility model Figure 1 Schematic diagram of the structure with part of the outer shell sheet metal panel removed.
[0028] Figure 3 This utility model is different from an embodiment of Figure 1 Schematic diagram of the appearance structure in perspective.
[0029] Figure 4 This is an embodiment of the utility model Figure 3 Schematic diagram of the structure with part of the outer shell sheet metal panel removed from the perspective.
[0030] Figure 5The utility model is a schematic structural diagram of a power cylinder and a grouting cylinder assembly in one embodiment.
[0031] Figure 6 The figure is a simplified structural diagram of a power cylinder in one embodiment of the utility model.
[0032] Figure 7 It is a structural schematic diagram of a grouting cylinder in one embodiment of the utility model.
[0033] Figure 8 This is an embodiment of the utility model Figure 7 Schematic diagram of the cross-sectional structure of AA.
[0034] Fig. 9 In one embodiment of the utility model, different from Figure 8 Schematic diagram of the cross-sectional structure from a viewing angle.
[0035] Fig.10 This is a schematic diagram of the structure of the upper and lower sealing valve bodies in one embodiment of the utility model.
[0036] Fig.11 An embodiment of the utility model is different from Fig.10 Schematic diagram of the upper and lower sealing valve body structure from a perspective.
[0037] Fig.12 It is a structural schematic diagram of a box shell sheet metal bracket assembly in one embodiment of the utility model.
[0038] Fig.13 This is a schematic diagram of the structure of a control processing execution module mainboard and a central processing unit in an embodiment of the utility model.
[0039] Fig.14 This is a schematic diagram of module connection in one embodiment of the utility model. DETAILED DESCRIPTION
[0040] In order to make the technical means, creative features, objectives and effects of the utility model easy to understand, the technical solution of the utility model will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of them. Based on the embodiments of 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.
[0041] In the description of the present invention, it should be noted that the terms “first” and “second” are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0042] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected", "connected" and "connected" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; for example, "connected" can be a direct "connected" or an indirect "connected" through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0043] Please refer to Figure 1-13 As shown, the specific structure of the new grouting device based on compressed air boosting of the utility model includes a box body 10, a power cylinder 30, a grouting cylinder 40, and the box body 10 is composed of a front shell sheet metal panel 11, a rear shell sheet metal panel 12, a left shell sheet metal panel 13, a right shell sheet metal panel 14, a top shell sheet metal panel 15, a bottom shell sheet metal panel 16 and / or a shell sheet metal panel 17 located at a connecting slope between the front side and the top side. Each shell sheet metal panel is fixed by a shell sheet metal bracket assembly 20. In the embodiment of the utility model, the shell sheet metal The bracket assembly 20 includes a pair of side sheet metal brackets 21, 22, and a connecting rib 23 connecting the pair of side sheet metal brackets 21, 22. A cylinder bracket 24 and a mainboard fixing bracket 25 are installed on the outer shell sheet metal bracket assembly 20. For easy operation and movement, a handle 130 is installed on the top outer shell sheet metal panel 15 of the box body, and the left and right outer shell sheet metal panels 13, 14 of the box body are equipped with a box opening lock 140. A metal foot pad 150 is installed on the bottom outer shell sheet metal panel 16 of the box body. The metal foot pad 150 can be an adjustable height metal foot pad in the prior art. The power cylinder 30 is installed on both sides of the rear shell sheet metal panel 12 of the box body through the cylinder bracket 24 and the power cylinder mounting flange 19, and the grouting cylinder 40 is installed through the cylinder bracket 24 and the grouting cylinder mounting flange 44. The power cylinder 30 has a first piston head 33, a piston rod 31 and a connecting rod 34. One end of the piston rod 31 in the power cylinder is connected to the first piston head 33, and the other end of the piston rod 31 in the power cylinder extends into the grouting cylinder 40 and is connected to the second piston head 43 located in the grouting cylinder 40. The second piston head 43 slides along the inner surface of the cylinder barrel and is kept sealed by a piston seal ring (not shown in the figure), which is placed in the piston seal groove 43a.
[0044] A grouting cylinder lower end cover 48 is provided at the bottom end of the grouting cylinder 40 away from the power cylinder 30, and a grouting cylinder upper end cover 47 is provided at the top end; the grouting cylinder lower end cover 48 and the grouting cylinder upper end cover 47 are respectively provided with a grouting cylinder feed port 42 and a grouting cylinder discharge port 41; the grouting cylinder feed port 42 and the grouting cylinder discharge port 41 are respectively provided with a grouting cylinder feed port interface 171 and a grouting cylinder discharge port interface 170; a grouting cylinder discharge control valve 80 and a grouting cylinder feed control valve 70 are respectively provided in the grouting cylinder 40 and corresponding to the grouting cylinder discharge port 41 and the grouting cylinder feed port 42, and are respectively provided with a sealing and sliding arrangement.
[0045] Among them, the grouting cylinder discharge control valve 80 includes an upper sealing ring plate 81 and an upper sealing valve body 82, wherein the upper sealing valve body 82 is arranged between the upper sealing ring plate 82 and the grouting cylinder discharge port 41, and has an integrally formed first annular groove 90 and a second frustum 91 arranged in the opposite direction to the notch of the first annular groove 90; the outer side surface 90a of the first annular groove 90 is in sealing sliding contact with the inner circumferential surface of the grouting cylinder; the grouting cylinder feed control valve 70 has the same structure as the grouting cylinder discharge control valve 80, including a lower sealing ring plate 71 and a lower sealing valve body 72 consistent with the structure of the grouting cylinder discharge control valve 80, wherein the lower sealing valve body 72 is arranged between the lower sealing ring plate 71 and the grouting cylinder feed port 42; the circular diameter of the second frustum 91 is larger than the inner circle hole diameter of the upper and lower sealing ring plates 81, 71, and smaller than the circular groove diameter of the first annular groove 90; so as to be able to cover the inner circle holes of the upper and lower sealing ring plates 81, 71. In the embodiment of the utility model, a plurality of valve holes 93 are arranged in a circular array in the first annular groove 90 and around the second truncated cone 91 . In the embodiment of the utility model, the number of the valve holes 93 is eight.
[0046] In the embodiment of the utility model, the power cylinder is provided with a driving air source by an air compressor (not shown in the figure). When the power cylinder 30 drives the piston head 43 to move close to the power cylinder 30, the grouting cylinder 40 is in a reduced pressure state. At this time, the lower sealing valve body 72 is lifted upward to the limit position of the lower sealing ring plate 71 due to the suction force. The slurry enters from the grouting cylinder feed port 42, flows through the flow gap generated by the separation of the lower sealing valve body 71 and the grouting cylinder feed port 42, and finally flows into the grouting cylinder through the valve hole 93. On the other hand, due to the dual effects of self-gravity and negative pressure suction, the end face of the second truncated cone 91 of the upper sealing valve body 82 is close to the upper sealing ring plate 81 to prevent the slurry from being sucked back.
[0047] When the power cylinder 30 drives the piston head 43 to move away from the power cylinder 30, the grouting cylinder 40 is in a pressurized and high-pressure state. At this time, due to the dual effects of gravity and pressure, the end face of the second cone 91 of the lower sealing valve body 72 is close to the grouting cylinder inlet 42 to block the outflow of slurry; on the other hand, the upper sealing valve body 82 is lifted by the force and abuts against the inner surface of the upper end cover 47 of the grouting cylinder. The slurry flows through the ring hole of the upper sealing ring plate 81 and the flow gap generated by the separation of the upper sealing valve body 82 and the upper sealing ring plate 81, and finally flows to the grouting cylinder outlet through the valve hole 93. In the embodiment of the utility model, the upper and lower sealing ring plates 81, 71 are integrally formed with the grouting cylinder 40, and the grouting cylinder is divided into a large grouting cylinder 40a and a small grouting cylinder 40b. The upper and lower sealing valve bodies 82, 72 are respectively located on the upper and lower sides of the small grouting cylinder 40a. The outer end surface of the small grouting cylinder 40a is sealed by the grouting cylinder upper end cover 47, the grouting cylinder lower end cover 48 and the corresponding grouting cylinder end cover sealing ring (not shown in the figure), and the grouting cylinder end cover sealing groove 46, and the second piston head 43 is limited to move on one side of the grouting cylinder partition surface 40d.
[0048] Because the outer surface of the second cone 91 is a smooth end surface, the sealing effect is not very good when it is in contact with the upper sealing ring plate 81 or the inner surface 45 of the lower end cover of the grouting cylinder. In order to enhance the sealing performance of the second cone 91 and the inner surface 45 of the lower end cover of the grouting cylinder and the upper sealing ring plate 81, the second cone 91 in the embodiment of the utility model is provided with a second annular groove 92, and a fluororubber seal 94 is arranged in the second annular groove 92. In addition, the first cone 97 is flush with the top surface of the first annular groove 90, and a screw hole 95 is provided on the central axis of the bottom surface of the second annular groove 90, and the screw hole 95 coincides with the center line of the first cone 97; a fluororubber seal through hole 96 corresponding to the position of the screw hole is provided in the center of the fluororubber seal 94, and the fluororubber seal 94 is fixedly connected to the upper and lower sealing valve bodies by screws (not shown in the figure).
[0049] Since the fluororubber seal 94 needs to be fixed by screws at the second annular groove 92, a first truncated cone 97 is convexly provided at the center of the bottom surface of the first annular groove 90 in the embodiment of the utility model, one purpose of which is to increase the depth of the threaded hole to ensure that the screw can be fixed normally and stably. The second purpose is to enhance the compression and deformation resistance of the upper and lower valve bodies. In the embodiment of the utility model, when the grouting cylinder is feeding and discharging materials, the upper and lower sealing valve bodies 82 and 72 are subjected to relatively balanced forces at the moment of lifting or lowering, and the structure is relatively stable. The fluororubber seal 94 is always fixed in a relative position with the upper and lower valve bodies 82 and 72 during the rising and falling process, so as to achieve the sealing effect of the upper and lower valve bodies 82 and 72.
[0050] Please combine Fig.14As shown, the driving control of the power cylinder of the utility model embodiment can be controlled by some communication modules. For example, one embodiment includes a data acquisition module, an analog quantity to RS485 acquisition module 211, and a data processing execution module connected electrically. The data acquisition module includes a pressure sensor 200 and a displacement sensor 50. The pressure sensor 200 is fixed on the box body 10 through a pressure sensor fixing part 201. There are two grouting cylinder discharge ports 41. The pressure port 202 of the pressure sensor is connected to one of the grouting cylinder discharge port interfaces 170 of the grouting cylinder through a pipeline (not shown in the figure); the displacement sensor 50 is fixed in the box body 10 through a displacement sensor fixing bracket 60. The displacement sensor 50 has a displacement scale 51, and its displacement scale 51 is connected to the first piston head 33 in the power cylinder piston through a connecting rod 34 for synchronous movement.
[0051] The data processing execution module includes a mainboard 182, a central processing unit 180, a touch screen 100, a relay 190, and a solenoid valve 32. The central processing unit is installed on the mainboard 182. The touch screen 100 is connected to the mainboard 182 through the HIDM serial port 183 on the mainboard. The mainboard 182 is installed on the mainboard fixing frame 25 and is provided with a mainboard protection cover 181. A plurality of function adjustment switches 110 are embedded on the housing sheet metal panel 17 of the connecting inclined surface between the front side and the top side. The relay 190 is electrically connected to the mainboard 182. The solenoid valve 32 2 is electrically connected to the relay 190. In the embodiment of the utility model, the solenoid valve is a two-position three-way solenoid valve, which has a solenoid valve air inlet 32d and two solenoid valve air outlets 32c. The power cylinder 30 is a two-way power cylinder. The two solenoid valves 32a and 32b are respectively installed at the air ports at both ends of the power cylinder 30 through the power cylinder connector 36; the two air intake pipes 35 are respectively connected to the two solenoid valve air inlets 32d, and the two air intake pipes 35d have the same air intake pipe port 35a, and the air intake pipe port 35a is connected to the air compressor through a pipe. In the embodiment of the utility model, the main board can adopt the industrial automation control main board of model CX3568 and match the appropriate central processor. The power cylinder can adopt the cylinder of SDA80×50, where 80×50 represents the cylinder diameter of 80mm and the stroke of 50mm. The displacement sensor 50 can adopt the linear displacement sensor of model KTM-75B, and its effective stroke is 75mm. It should be noted that the structures or electrical connection methods of these communication appliances or related actuators in the embodiments of the present utility model do not belong to the key contents to be protected in the present utility model and will not be elaborated here.
[0052] The system control principle of an embodiment of the utility model is briefly described below: the pressure value at the grouting cylinder discharge port interface 170 collected by the pressure sensor 200 is compared with the system pressure setting value to control the grouting pressure accordingly, and the stroke value data collected by the displacement sensor 50 is compared with the system grouting amount setting value to control the grouting amount accordingly; the displacement value is converted by the analog quantity to RS485 acquisition module 211 signal and then electrically transmitted to the data processing execution module via wireless or RS485 serial port for processing, and the processed data signal information is finally transmitted data decoding and displayed on the touch display screen 100; the data processing execution module controls whether the corresponding solenoid valve 32 is energized and controls the intake pressure according to the pressure feedback from the pressure sensor 200 and the displacement value data feedback from the displacement sensor 50. If the system determines that slurry needs to be introduced into the grouting cylinder, the relay controls the solenoid valve 32b to be energized, and the solenoid valve 32b turns on the intake mode, which is the slurry suction mode. If the system determines that slurry needs to be discharged from the grouting cylinder, the relay controls the solenoid valve 32a to be energized, and the solenoid valve air inlet 32d is opened, which is the slurry discharge mode. During the grouting operation, if the system determines that the real-time working pressure value is less than the system pressure setting value, the solenoid valve 32a is controlled to increase the air intake.
[0053] In addition, in the implementation of the utility model, the displacement sensor fixing bracket 60 is a pair of sheet metal brackets, which are specifically composed of an upper horizontal mounting base plate 61, a lower horizontal mounting base plate 62 and a vertical connecting rib plate 63 connecting the two mounting base plates. The upper and lower horizontal mounting base plates 61 and 62 are arranged in reverse, and the displacement sensor 60 is installed on the upper horizontal mounting base plate 61. The lower horizontal mounting base plate is fixed to the outer shell rib sheet metal 16 surface of the bottom side of the box body through the mounting groove 63 and screws opened therein. A PVC wire trough 160 is arranged below the upper horizontal mounting base plate 61, and the power box 210 and the analog quantity to RS485 acquisition module 211 are respectively arranged on both sides of the PVC wire trough. The power box 21 is electrically connected to the power switch 120 located on the box body 10. Such a structural layout design is compact in structure, and the overall volume of the device is also small and easy to carry.
[0054] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.
Claims
1. A new type of grouting device based on compressed air boosting, comprising a box body, a power cylinder is installed in the box body, the power cylinder is connected to an air compressor, the power cylinder has a piston rod, and a first piston head located in the power cylinder and connected to one end of the piston rod, characterized in that: It also includes a grouting cylinder, the other end of the piston rod extends into the grouting cylinder and is connected to a second piston head located in the grouting cylinder, the bottom end of the grouting cylinder away from the power cylinder is provided with a grouting cylinder lower end cover, and the top end is provided with a grouting cylinder upper end cover; the grouting cylinder lower end cover and the grouting cylinder upper end cover are respectively provided with a grouting cylinder feed port and a grouting cylinder discharge port; a grouting cylinder feed control valve and a grouting cylinder discharge control valve are respectively provided in the grouting cylinder and corresponding to the grouting cylinder feed port and the grouting cylinder discharge port, respectively, and are sealed and slidably configured; The grouting cylinder discharge control valve comprises an upper sealing ring plate and an upper sealing valve body, wherein the upper sealing valve body is arranged between the upper sealing ring plate and the grouting cylinder discharge port, and the upper sealing valve body has an integrally formed first annular groove and a second truncated cone arranged in the opposite direction to the notch of the first annular groove; the outer side surface of the first annular groove is in sealing sliding contact with the inner surface of the grouting cylinder; The grouting cylinder feed control valve has the same structure, including a lower sealing ring plate and a lower sealing valve body, and the lower sealing valve body is arranged between the lower sealing ring plate and the grouting cylinder feed port; The circular diameter of the second truncated cone is larger than the inner circle hole diameters of the upper and lower sealing ring plates, and smaller than the circular groove diameter of the first annular groove; A plurality of valve holes are arranged in the first annular groove and in an annular array around the second truncated cone; When the power cylinder drives the piston head to move closer to the power cylinder, the grouting cylinder is in a negative pressure state. At this time, the lower sealing valve body is lifted upward to the limit position of the lower sealing ring plate, and the slurry is sucked into the grouting cylinder from the valve hole; on the other hand, due to the dual effects of the gravity and negative pressure suction of the upper sealing valve body, the end face of the second cone is close to the lower sealing ring plate to prevent the slurry from being sucked back.
2. A new type of grouting device based on compressed air boosting according to claim 1, characterized in that: The second truncated cone is provided with a second annular groove, a fluororubber seal is arranged in the second annular groove, and the fluororubber seal is fixed to the upper and lower sealing valve bodies by screws.
3. A new type of grouting device based on compressed air pressurization according to claim 2, characterized in that: A first truncated cone is protrudingly provided at the center of the bottom surface of the first annular groove, and the first truncated cone is flush with the top surface of the annular groove of the first annular groove.
4. A new type of grouting device based on compressed air boosting according to claim 3, characterized in that: It also includes a data acquisition module, an analog quantity to RS485 acquisition module, and a data processing execution module which are electrically connected; the data acquisition module includes a pressure sensor and a displacement sensor, the pressure sensor is fixed on the box body through the pressure sensor, the grouting cylinder has two discharge ports, and the pressure port of the pressure sensor is connected to one of the discharge ports of the grouting cylinder through a pipeline and a joint; the displacement sensor is fixed in the box body through a displacement sensor fixing bracket, and its displacement ruler is connected to the first piston head through a connecting rod; The data processing execution module includes a mainboard, a central processing unit, a touch display screen, a relay, and a solenoid valve. The central processing unit is installed on the mainboard, the touch display screen is connected to the mainboard through the HIDM serial port on the mainboard, the relay is electrically connected to the mainboard, the solenoid valve is electrically connected to the relay, and the solenoid valve is a two-position three-way solenoid valve installed at the air ports at both ends of the power cylinder.
5. A new type of grouting device based on compressed air pressurization according to claim 4, characterized in that: The power cylinder and the grouting cylinder are fixed on the box body through cylinder brackets. The power cylinder is located inside the box body, and the grouting cylinder is located outside the box body. The displacement sensor is a linear displacement sensor and is mounted in the box body through a displacement sensor bracket.
6. A new type of grouting device based on compressed air pressurization according to claim 5, characterized in that: A handle is installed on the top surface of the box body, a box opening lock is installed on the left and right sides of the box body, and a metal foot pad is installed on the bottom surface of the box body.
7. A new type of grouting device based on compressed air pressurization according to claim 1, characterized in that: The upper and lower sealing ring plates are integrally formed with the grouting cylinder. The grouting cylinder is divided into a large grouting cylinder and a small grouting cylinder. The upper and lower sealing valve bodies are respectively located on the upper and lower sides of the small grouting cylinder. The outer end surface of the small grouting cylinder is sealed by the upper and lower end covers of the grouting cylinder and the end cover sealing ring. The stroke range of the second piston head is limited within the large grouting cylinder.