High-pressure jet grouting device

Abstract

The application provides a high-pressure jet grouting device, which comprises a base, a mud stirring assembly arranged on the base, the mud stirring assembly comprising a mud stirring tank, a bidirectional motor arranged on the top of the mud stirring tank, a stirring shaft with one end connected with the power output end of the bidirectional motor and the other end extending into the mud stirring tank, and paddles arranged on the stirring shaft, characterized in that the high-pressure jet grouting device further comprises a mud pump, a mud pressure feeding assembly, a pressure feeding transmission assembly, and a transmission control assembly, the feeding end of the mud pump is connected with the bottom of the mud stirring tank, and the discharging end of the mud pump is connected with the bottom of a mud pressure feeding tank. The application has the advantages of simple operation, small noise generated during work, and the use of the power of the stirred mud to uniformly deliver high-pressure slurry through the mud pressure feeding assembly, so that the use cost of the equipment is reduced.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of grouting equipment, more particularly, the present application relates to a high-pressure jet grouting device. BACKGROUND

[0002] The high-pressure jet grouting technology is widely used in the foundation reinforcement and anti-seepage engineering of buildings, which is a construction process combining high-pressure hydraulic jet cutting technology and grouting technology.

[0003] In the prior art, the high-pressure jet grouting device usually includes a mud tank, a high-pressure grouting pump, an air compressor, a grouting head and other components. When using the high-pressure jet grouting device in actual engineering, the following problems usually exist:

[0004] (1) In the existing high-pressure jet grouting device, the mud tank usually does not configure a stirring device, so that the mud is prone to stratification and sedimentation during use, which will affect the grouting effect. If a stirring device is configured, an additional power system needs to be added, which will increase the use cost of the high-pressure jet grouting device.

[0005] (2) When using the high-pressure jet grouting device for grouting, the air compressor will vibrate at a high frequency during work, thereby producing noise pollution and being harmful to the health of construction personnel.

[0006] (3) During grouting construction, the start and stop of the high-pressure grouting pump and the air compressor need to be frequently controlled. Especially when triple-tube grouting construction is adopted, water needs to be delivered by a high-pressure water pump as a medium. Therefore, the working states of the high-pressure grouting pump, the air compressor and the high-pressure water pump need to be reasonably controlled to deliver slurry, gas and water for grouting construction, so that the grouting construction operation is relatively complicated. SUMMARY

[0007] In order to overcome the above-mentioned defects of the prior art, the purpose of the present application is to provide a high-pressure jet grouting device which is simple to operate, produces little noise during work, and can uniformly deliver high-pressure slurry by using the power for stirring the mud through a mud pressure delivery assembly, thereby reducing the use cost of the equipment.

[0008] To achieve the above-mentioned purpose, the present application provides the following technical scheme.

[0009] The high-pressure jet grouting device comprises a base, a mud stirring assembly arranged on the base, the mud stirring assembly comprising a mud stirring tank, a bidirectional motor arranged on the top of the mud stirring tank, a stirring shaft having one end connected with the power output end of the bidirectional motor and the other end extending into the mud stirring tank, and paddles arranged on the stirring shaft, characterized in that the high-pressure jet grouting device further comprises a mud pump, a mud pressure delivery assembly, a pressure delivery transmission assembly, and a transmission control assembly.

[0010] The feed end of the mud pump is connected to the bottom of the mud stirring tank, and the discharge end of the mud pump is connected to the bottom of the mud pressure tank;

[0011] The mud pressure delivery assembly includes a mud pressure delivery tank arranged on a base, a pressure delivery shaft, a second driven gear, a pressure delivery plate piston-slidingly arranged in the mud pressure delivery tank and connected to the pressure delivery shaft threadedly, and a mud delivery pipe arranged at the bottom of the mud pressure delivery tank; the upper end of the pressure delivery shaft is rotatably connected to the top of the mud pressure delivery tank, and the lower end of the pressure delivery shaft is sealed and rotated, passes through the bottom of the mud pressure delivery tank, and extends to the outside of the mud pressure delivery tank and is connected to the second driven gear;

[0012] The mud stirring assembly further includes a first driving gear disposed at the bottom of the mud stirring tank, and the lower end of the stirring shaft is sealed and rotated through the bottom of the mud stirring tank and extends outside the mud stirring tank to be connected to the first driving gear;

[0013] The transmission assembly includes a main support block and an auxiliary support block provided on the base, a main push rod provided through the main support block and capable of sliding horizontally, a return spring provided around the main push rod, a transmission shaft rotatably connected to the main push rod at one end and rotatably connected to the auxiliary support block at the other end, a first driven gear provided on the transmission shaft and engaged with the first driving gear in a disengageable manner, and a second driving gear provided on the transmission shaft and engaged with the second driven gear in a disengageable manner.

[0014] The transmission control assembly is connected to the main push rod and is used to control the main push rod to slide freely horizontally.

[0015] As a specific technical solution, the mud pressure delivery assembly also includes a limit slide rod that slides freely up and down through the top of the mud pressure delivery tank, and the lower end extends to the mud pressure delivery tank and is fixedly connected to the top surface of the pressure delivery plate, an upper limit spring whose upper end is fixedly connected to the top of the limit slide rod and the lower end is freely retractable, and a lower limit spring whose lower end is fixedly connected to the bottom of the limit slide rod and the upper end is freely retractable; the pressure delivery shaft includes a threaded surface pressure delivery shaft with threads on the outer surface, and a smooth surface pressure delivery shaft with a smooth outer surface arranged at both ends of the threaded section pressure delivery shaft.

[0016] As a specific technical solution, the mud pressure delivery assembly also includes a spring compression protective cover, the bottom of which is fixedly connected to the top of the mud pressure delivery tank, and the top opening of the spring compression protective cover is used to accommodate an upper limit spring abutting the top of the mud pressure delivery tank.

[0017] As a specific technical solution, the mud conveying pipe includes a connecting plate with a sealing groove on one side, an upper mud conveying pipe whose upper end is connected to the bottom of the mud pressure tank and whose lower end passes through the top of the connecting plate and is connected to the sealing groove, a sealing head that can be horizontally slid and plugged into the sealing groove, a connecting hole that passes through the sealing head up and down and is used to connect the upper mud conveying pipe and the lower mud conveying pipe, a sealing head push-pull rod with one end fixedly connected to the sealing head and the other end rotatably connected to the drive shaft, and a lower mud conveying pipe with its upper end passing through the bottom of the connecting plate and connected to the sealing groove.

[0018] As a specific technical solution, the diameter of the communicating hole is the same as the diameter of the upper mud conveying pipe and the lower mud conveying pipe.

[0019] As a specific technical solution, the transmission control component includes a pedal, a pedal rod with one end connected to the bottom of the pedal and the other end hinged to the base, and a force transmission rod with one end hinged to the middle position of the pedal rod and the other end hinged to the main push rod.

[0020] As a specific technical solution, a feeding port is provided on the top of the mud mixing tank.

[0021] As a specific technical solution, the high-pressure jet grouting device of the present invention further includes a roller arranged at the bottom of the base.

[0022] As a specific technical solution, the high-pressure jet grouting device of the present invention further includes a push rod arranged at one end of the base.

[0023] As a specific technical solution, a mud delivery valve is provided on the mud delivery pipe.

[0024] Technical effects and advantages of the present invention:

[0025] 1) The present invention only requires a bidirectional motor as the power of the device, and does not require additional equipment such as an air compressor and a high-pressure water pump. This not only reduces the weight of the equipment, but also saves energy consumption and reduces the cost of using the device. Moreover, during grouting, it does not affect the stirring operation of the mud in the mud mixing tank, and can always keep the mud in the mud mixing tank in a uniform state, which is beneficial to improving the quality of grouting construction.

[0026] 2) The present invention only requires stepping on the pedal and correctly controlling the rotation direction of the motor to perform grouting construction, which is simpler and more convenient to operate and is conducive to improving the efficiency of grouting construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the present invention;

[0028] Figure 2 It is the front view of the present invention;

[0029] Figure 3 for Figure 1Schematic diagram of the three-dimensional structure of the medium and detailed structure;

[0030] Figure 4 This is one of the usage state diagrams of the present invention;

[0031] Figure 5 This is the second diagram of the use state of the present invention;

[0032] Figure 6 This is the third diagram of the use state of the present invention;

[0033] The meanings of the symbols in the above figure are as follows: base 1, universal wheel 101, push rod 102; mud stirring assembly 2, mud stirring tank 201, bidirectional motor 202, stirring shaft 203, paddle 204, first driving gear 205, feeding port 206; mud pump 3; transmission assembly 4, main support block 401, main push rod 402, auxiliary support block 403, first driven gear 404, second driving gear 405, transmission shaft 406, return spring 407; transmission control assembly 5, pedal 501, pedal rod 502, force transmission rod 503 ; Mud pressure delivery assembly 6, mud pressure delivery tank 601, pressure delivery shaft 602, threaded surface pressure delivery shaft 6021, smooth surface pressure delivery shaft 6022, second driven gear 603, pressure delivery plate 604, limit slide 605, upper limit spring 606, lower limit spring 607, mud delivery pipe 608, mud delivery valve 6081, connecting plate 6082, upper mud delivery pipe 6083, sealing head 6084, connecting hole 6085, sealing head push-pull rod 6086, lower mud delivery pipe 6087, spring compression protective cover 609. DETAILED DESCRIPTION

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] Example 1

[0036] High pressure jet grouting device, please refer to Figures 1 to 6 , including a base 1, a mud stirring assembly 2 arranged on the base, a mud pump 3, a mud pressure delivery assembly 6, a pressure delivery transmission assembly 4, and a transmission control assembly 5;

[0037] The mud stirring assembly 2 comprises a mud stirring tank 201, a bidirectional motor 202 arranged on the top of the mud stirring tank 201, a stirring shaft 203 with one end connected to the power output end of the bidirectional motor 202 and the other end extending into the mud stirring tank 201, a paddle 204 arranged on the stirring shaft 203, and a first driving gear 205 arranged at the bottom of the mud stirring tank 201; the lower end of the stirring shaft 203 is sealingly rotatable and penetrates through the bottom of the mud stirring tank 201 and extends out of the mud stirring tank 201 to be connected to the first driving gear 205;

[0038] The feeding end of the mud pump 3 is connected to the bottom of the mud stirring tank 201, and the discharging end of the mud pump 3 is connected to the bottom of the mud pressure feeding tank 601;

[0039] The mud pressure feeding assembly 6 comprises a mud pressure feeding tank 601 arranged on the base 1, a pressure feeding rotating shaft 602, a second driven gear 603, a pressure feeding plate 604 arranged in the mud pressure feeding tank 601 in a piston sliding manner and threadedly connected to the pressure feeding rotating shaft 602, and a mud conveying pipe 608 arranged at the bottom of the mud pressure feeding tank 601; the upper end of the pressure feeding rotating shaft 602 is rotatably connected to the top of the mud pressure feeding tank 601, and the lower end of the pressure feeding rotating shaft 602 is sealingly rotatable and penetrates through the bottom of the mud pressure feeding tank 601 and extends out of the mud pressure feeding tank 601 to be connected to the second driven gear 603; based on the structure, the pressure feeding rotating shaft 602 can be driven to rotate by the second driven gear 603, thereby driving the pressure feeding plate 604 to slide in the mud pressure feeding tank 601 in a piston manner; by controlling the rotating direction of the second driven gear 603, the pressure feeding plate 604 can slide in a piston manner upward or downward, thereby making the pressure feeding plate 604 in a pressure feeding state or a reset state; specifically, when the pressure feeding plate 604 slides in a piston manner downward, the mud stored in the mud pressure feeding tank 601 can be fed to the grouting head through the mud conveying pipe 608 for grouting, at this time, the pressure feeding plate 604 is in the pressure feeding state; when the pressure feeding plate 604 slides in a piston manner upward, the pressure feeding plate 604 can be reset, at this time, the mud in the mud stirring tank 201 can be pumped into the mud pressure feeding tank 601, at this time, the pressure feeding plate 604 is in the reset state;

[0040] The transmission assembly 4 includes a main support block 401 and an auxiliary support block 403 provided on the base 1, a main push rod 402 provided through the main support block 401 and capable of sliding horizontally, a return spring 407 provided around the main push rod 402, a transmission shaft 406 rotatably connected to the main push rod 402 at one end and rotatably connected to the auxiliary support block 403 at the other end, a first driven gear 404 provided on the transmission shaft 406 and engaged with the first driving gear 205 in a disengageable manner, and a second driving gear 405 provided on the transmission shaft 406 and engaged with the second driven gear 603 in a disengageable manner; To be specific, one end of the return spring 407 is connected to the side wall of the main support block 401, and the other end is fixed to the annular wall of the main push rod 402; when the main push rod 402 is not subjected to external force, the return spring 407 is in a natural state. When the main push rod 402 is subjected to the force of the transmission control component 5, the main push rod 402 slides horizontally from the initial position to the side of the return spring 407, thereby compressing the return spring 407. When the force of the transmission control component 5 on the main push rod 402 is released, the main push rod 402 will return to its initial position under the elastic force of the return spring 407, and this When the return spring 407 is in the natural state; based on the above structure, when the return spring 407 is in the natural state, the first driven gear 404 on the transmission shaft 406 is disengaged from the first driving gear 205, and the second driving gear 405 is disengaged from the second driven gear 603. At this time, the first driving gear 205 cannot drive the second driven gear 603 to rotate through the transmission assembly 4, and the pressure plate in the mud pressure delivery assembly 6 is in a stationary state; when the return spring 407 is in a compressed state, that is, it is necessary to control the main push rod 402 to slide to the left, at this time the first driven gear 404 on the transmission shaft 406 is disengaged from the first driving gear 205, and the second driving gear 405 is disengaged from the second driven gear 603. The gear 404 is meshedly connected with the first driving gear 205, and the second driving gear 405 is meshedly connected with the second driven gear 603. In this way, the first driving gear 205 can drive the second driven gear 603 to rotate through the transmission assembly 4, thereby driving the pressure-feeding shaft 602 to rotate, so that the pressure-feeding plate 604 slides like a piston in the mud pressure-feeding tank 6. By controlling the rotation direction of the first driving gear 205, that is, the rotation direction of the bidirectional motor 202, the pressure-feeding plate 604 can slide like a piston upward or downward, thereby placing the pressure-feeding plate 604 in a pressure-feeding state or a reset state.

[0041] The transmission control assembly 5 is connected to the main push rod 402 to control the main push rod 402 to slide freely horizontally.

[0042] Since the operator cannot easily know the position of the pressing plate 604 in the mud pressing tank 601 when the pressing plate 604 is pistonically sliding upward or downward, for example, when the pressing plate 604 is pistonically sliding downward, if the transmission assembly 4 is not controlled in time to make the pressing plate 604 stop sliding in time, the pressing plate 604 may impact the bottom of the mud pressing tank 601 and affect the normal operation of the equipment, further, in a preferred embodiment, the mud pressing assembly 6 further comprises a limiting sliding rod 605 which is freely sliding up and down and penetrating through the top of the mud pressing tank 601 and is fixedly connected with the top surface of the pressing plate 7 at the lower end, an upper limiting spring 606 which is fixedly connected with the top of the limiting sliding rod 605 at the upper end and is freely telescopic at the lower end, and a lower limiting spring 607 which is fixedly connected with the bottom of the limiting sliding rod 605 at the lower end and is freely telescopic at the upper end; the pressing rotating shaft 602 comprises a threaded surface pressing rotating shaft 6021 which is provided with threads on the outer surface, and a smooth surface pressing rotating shaft 6022 which is provided with a smooth outer surface and is arranged at both ends of the threaded surface pressing rotating shaft 6021; based on the above structure, since the pressing rotating shaft 602 comprises the threaded surface pressing rotating shaft 6021 and the smooth surface pressing rotating shaft 6022, when the pressing rotating shaft 602 rotates, the threaded surface pressing rotating shaft 6021 can drive the pressing plate 604 to move upward or downward, while the smooth surface pressing rotating shaft 6022 cannot drive the pressing plate 604 to move upward or downward, so the pressing plate 604 will only pistonically slide upward or downward within the vertical length of the threaded surface pressing rotating shaft 6021; further, through cooperation of the lower limiting spring 607, when the pressing plate 604 moves upward to be just separated from the threaded surface pressing rotating shaft 6021 and is rotationally connected with the smooth surface pressing rotating shaft 6022, even if the transmission shaft 406 is still in the rotating state, since the smooth surface pressing rotating shaft 6022 cannot drive the pressing plate 604 to move upward, the pressing plate 604 will not continue to slide upward at this time, and the freely telescopic end of the upper end of the lower limiting spring 607 will abut against the top wall in the mud pressing tank 601 and be in the compressed state, so that the pressing plate 604 is in the balanced state at the junction of the smooth surface pressing rotating shaft 6022 and the threaded surface pressing rotating shaft 6021 and will not continue to slide upward to impact the top of the mud pressing tank 601; if the pressing rotating shaft 602 is controlled to stop rotating at this time, under the jacking action of the lower limiting spring 607, the pressing plate 604 will be subjected to downward force and be threadedly connected with the threaded surface pressing rotating shaft 6021, and then if the rotating direction of the pressing rotating shaft 602 is changed, the threaded surface pressing rotating shaft 6021 will drive the pressing plate 604 to slide downward.Similarly to the above, through the cooperation of the upper limit spring 606, when the pressure plate 604 moves downward to just disengage from the threaded surface pressure shaft 6021 and is rotationally connected to the smooth surface pressure shaft 6022, even if the transmission shaft 406 is still in a rotating state, the smooth surface pressure shaft 6022 cannot drive the pressure plate 604 to move downward. At this time, the pressure plate 604 will not continue to slide downward, and the free telescopic end of the lower end of the upper limit spring 606 will abut against the top wall outside the mud pressure tank 601 and be in a compressed state. In this way, the pressure plate 604 is in a balanced state at the junction of the smooth surface pressure shaft 6022 and the threaded surface pressure shaft 6021, and it will not continue to slide downward and hit the bottom of the mud pressure tank 601; if at this time, the pressure shaft 602 is first controlled to stop If the pressure feed shaft 602 is stopped from rotating, the upper limit spring 606 will push the pressure plate 604 upward and threadedly connect it to the threaded pressure feed shaft 6021. If the rotation direction of the pressure feed shaft 602 is changed, the threaded pressure feed shaft 6021 will drive the pressure feed plate 604 to slide upward. Based on the above, it can be seen that through the cooperation of the limit slide bar 605, the upper limit spring 606, the lower limit spring 607, the threaded pressure feed shaft 6021, and the smooth pressure feed shaft 6022, when the pressure feed shaft 602 rotates to drive the pressure feed plate 604 to slide upward or downward in a piston-like manner, it can only slide up or down to the intersection of the smooth pressure feed shaft 6022 and the threaded pressure feed shaft 6021 and will not continue to slide and hit the top or bottom of the mud pressure feed tank 601.

[0043] Furthermore, in a preferred embodiment, the mud pressure delivery assembly 6 also includes a spring compression protection cover 609, the bottom of the spring compression protection cover 609 is fixedly connected to the top of the mud pressure delivery tank 601, and the top opening of the spring compression protection cover 609 is used to accommodate the upper limit spring 606 abutting the top of the mud pressure delivery tank 601. In this way, the protection of the spring compression protection cover 609 can prevent the upper limit spring 606 from pinching the operator due to unexpected circumstances when abutting the mud pressure delivery tank 601.

[0044] Furthermore, in a preferred embodiment, the mud conveying pipe 608 includes a connecting plate 6082 with a sealing groove on one side, an upper mud conveying pipe 6083 whose upper end is connected to the bottom of the mud pressure tank 601 and whose lower end passes through the top of the connecting plate 6082 and is connected to the sealing groove, a sealing head 6084 that can slide freely horizontally and plug into the sealing groove, a connecting hole 6085 that passes through the sealing head 6084 from top to bottom and is used to connect the upper mud conveying pipe 6083 and the lower mud conveying pipe 6083, a sealing head push-pull rod 6086 that is fixedly connected to the sealing head 6084 at one end and rotatably connected to the transmission shaft 406 at the other end, and a lower mud conveying pipe 6087 whose upper end passes through the bottom of the connecting plate 6082 and is connected to the sealing groove; based on the above structure, due to The main push rod 402, the transmission shaft 406 and the plugging head push-pull rod 6086 are connected in sequence. When the return spring 407 is in a natural state, the connecting hole 6085 in the plugging head 6084 is misaligned with the pipe openings of the upper mud conveying pipe 6083 and the lower mud conveying pipe 6083. At this time, the plugging head 6084 can block the upper mud conveying pipe 6083 and the lower mud conveying pipe 6083. When the return spring 407 is in a compressed state, it is necessary to control the main push rod 402 to slide to the left, and then drive the transmission shaft 406 and the plugging head push-pull rod 6086 to slide to the left in turn, so that the plugging head 6084 moves, and then the connecting hole 6085 connects the upper mud conveying pipe 6083 and the lower mud conveying pipe 6083, so that the mud conveying pipe 608 forms a passage.

[0045] Furthermore, in a preferred embodiment, the diameter of the connecting hole 6085 is the same as the diameter of the upper mud conveying pipe 6083 and the lower mud conveying pipe 6087.

[0046] In order to facilitate the control of the horizontal free sliding of the main push rod 402, further, in a preferred embodiment, the transmission control component 5 includes a pedal 501, a pedal rod 502 with one end connected to the bottom of the pedal 501 and the other end hinged to the base 1, and a force transmission rod 503 with one end hinged to the middle position of the pedal rod 502 and the other end hinged to the main push rod 402.

[0047] In order to facilitate the feeding of cement, water and other materials into the mud mixing tank 201 , further, in a preferred embodiment, a feeding port 206 is provided on the top of the mud mixing tank 201 .

[0048] In order to facilitate the movement of the device of the present invention and improve its flexibility of use, further, in a preferred embodiment, the present invention also includes a universal wheel 101 arranged at the bottom of the base 1.

[0049] In order to facilitate the movement of the device of the present invention, further, in a preferred embodiment, the present invention further includes a push rod 102 arranged at one end of the base 1.

[0050] Furthermore, in a preferred embodiment, a mud delivery valve 6081 is provided on the mud delivery pipe 608 .

[0051] Based on the description of the above embodiments, the method of use or working principle of the present invention is as follows: Figure 4 When using the device of the present invention, the push rod 102 can be used to move the device to the vicinity of the construction location, and then cement, water and other materials can be added to the mud mixing tank 201 through the feeding port 206. After that, the bidirectional motor 202 is turned on to stir the materials, thereby completing the configuration of the mud. At this time, the speed of the bidirectional motor 202 can be slowed down to continuously stir the mud in the mud mixing tank 201 to prevent stratification and precipitation. When grouting is required, the position of the limit slide 605 and the upper limit spring 606 can be observed first to determine the position of the pressure plate 604 in the mud pressure feeding tank 601. If the limit slide 605 and the upper limit spring 606 are in the same position, the position of the pressure plate 604 in the mud pressure feeding tank 601 can be determined. When 606 is at the highest position, it means that the pressure plate 604 is in a balanced state at the junction of the threaded surface pressure shaft 6021 and the smooth surface pressure shaft 6022 at its upper end. At this time, the mud pressure tank 601 has enough feeding space. After that, the mud pump 3 can be turned on to pump a suitable amount of mud into the mud pressure tank 601. Note that the amount of mud pumped should meet the following requirements: the mud level should be below the pressure plate 604. Then, determine whether the rotation direction of the bidirectional motor 202 is correct and whether the pressure plate 604 can be driven to slide downward. After adjusting and determining the rotation direction of the bidirectional motor 202 and controlling the appropriate speed of the bidirectional motor 202, , first open the mud delivery valve 6081, then step on the pedal 501, at this time the pedal rod 502 rotates downward and drives the end of the force transmission rod 503 hinged with the main push rod 402 to move forward horizontally, thereby causing the main push rod 402 to slide to the left, so that the return spring 407 is always in a compressed state, so that the first driven gear 404 on the transmission shaft 406 is meshed and connected with the first driving gear 205, and the second driving gear 405 is meshed and connected with the second driven gear 603, the rotating bidirectional motor 202 will sequentially drive the stirring shaft 203 and the first driving gear 205 to rotate, and the first driving gear 205 will sequentially drive the transmission shaft 406, The second driving gear 405 rotates, and the second driving gear 405 will in turn drive the second driven gear 603 and the pressure-feeding shaft 602 to rotate, and finally the pressure-feeding plate 604 slides downward in a piston-like manner. At the same time, when the return spring 407 is in a compressed state, the communicating hole 6085 connects the upper mud delivery pipe 6083 and the lower mud delivery pipe 6083, and the mud delivery pipe 608 forms a passage. During the piston-like downward sliding process of the pressure-feeding plate 604, the pressure-feeding plate 604 squeezes the mud in the mud pressure-feeding tank 601, so that the mud is delivered to the grouting head from the mud delivery pipe 608 at a certain pressure, thereby completing the grouting operation;

[0052] See also Figure 5When the pressure plate 604 slides downward to the intersection of the smooth surface pressure shaft 6022 and the threaded surface pressure shaft 6021 and is in a balanced state, that is, when the mud conveying pipe 608 stops discharging material, it means that the mud in the mud pressure tank 601 is empty. At this time, the pedal 501 can be released. Under the elastic force of the return spring 407, the return spring 407 is in a natural state, thereby causing the main push rod 402 to slide to the right. In this way, the first driven gear 404 on the transmission shaft 406 is disengaged from the first driving gear 205, and the second driving gear 405 is disengaged from the second driven gear 603. At this time, the bidirectional motor 202 cannot drive the pressure shaft 602 to rotate; please refer to Figure 6 , then change the rotation direction of the bidirectional motor 202, and then step on the pedal 501 again to keep the return spring 407 in a compressed state. At this time, the bidirectional motor 202 will drive the pressure-feeding shaft 602 to rotate, but the rotation direction of the pressure-feeding shaft 602 is changed, which can make the pressure-feeding plate 604 slide upward like a piston. When the pressure-feeding plate 604 slides upward to the junction of the smooth surface pressure-feeding shaft 6022 and the threaded surface pressure-feeding shaft 6021 and is in a balanced state, the mud pressure-feeding tank 601 has enough feeding space, and the above operation can be repeated to perform the grouting operation again;

[0053] From the above description, it can be seen that the present invention only requires one motor as the power of the device, thereby achieving the purpose of saving energy consumption and reducing the cost of using the device, and when realizing grouting, it will not affect the stirring operation of the mud in the mud mixing tank, and the mud in the mud mixing tank can always be kept in a uniform state; at the same time, the present invention only needs to step on the pedal and correctly control the rotation direction of the motor to carry out grouting construction, which is simpler and more convenient to operate, and is conducive to improving the efficiency of grouting construction.

[0054] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense, and may refer to mechanical or electrical connections, internal communication between two components, or direct connection. "Up," "down," "left," and "right" are only used to indicate relative positional relationships. When the absolute positions of the objects being described change, the relative positional relationships may also change.

[0055] Secondly: The drawings of the embodiments disclosed in the present invention only involve structures related to the embodiments disclosed in the present invention. Other structures may refer to conventional designs. The same embodiment and different embodiments of the present invention may be combined with each other without conflict.

[0056] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A high-pressure jet grouting device, comprising a base (1), a mud stirring assembly (2) arranged on the base, the mud stirring assembly (2) comprising a mud stirring tank (201), a bidirectional motor (202) arranged on the top of the mud stirring tank (201), a stirring shaft (203) having one end connected to a power output end of the bidirectional motor (202) and the other end extending into the mud stirring tank (201), and a paddle (204) arranged on the stirring shaft, characterized in that The high-pressure jet grouting device further comprises: a mud pump (3), a mud pressure-feeding assembly (6), a pressure-feeding transmission assembly (4), and a transmission control assembly (5); The feed end of the mud pump (3) is connected to the bottom of the mud stirring tank (201), and the discharge end of the mud pump (3) is connected to the bottom of the mud pressure tank (601); The mud pressure delivery assembly (6) comprises a mud pressure delivery tank (601) arranged on a base (1), a pressure delivery shaft (602), a second driven gear (603), a pressure delivery plate (604) piston-type slidingly arranged in the mud pressure delivery tank (601) and threadedly connected to the pressure delivery shaft (602), and a mud delivery pipe (608) arranged at the bottom of the mud pressure delivery tank (601); the upper end of the pressure delivery shaft (602) is rotatably connected to the top of the mud pressure delivery tank (601), and the lower end of the pressure delivery shaft (602) is sealed and rotatable, passes through the bottom of the mud pressure delivery tank (601), extends to the outside of the mud pressure delivery tank (601), and is connected to the second driven gear (603); The mud stirring assembly (2) further comprises a first driving gear (205) arranged at the bottom of the mud stirring tank (201); the lower end of the stirring shaft (203) is sealed and rotatable, passes through the bottom of the mud stirring tank (201) and extends outside the mud stirring tank (201) to be connected to the first driving gear (205); The transmission assembly (4) comprises a main support block (401) and an auxiliary support block (403) arranged on the base (1), a main push rod (402) arranged through the main support block (401) and capable of sliding horizontally, a return spring (407) arranged around the main push rod (402), a transmission shaft (406) having one end rotatably connected to the main push rod (402) and the other end rotatably connected to the auxiliary support block (403), a first driven gear (404) arranged on the transmission shaft (406) and capable of being engaged with the first driving gear (205), and a second driving gear (405) arranged on the transmission shaft (406) and capable of being engaged with the second driven gear (603). The transmission control assembly (5) is connected to the main push rod (402) and is used to control the main push rod (402) to slide freely horizontally.

2. The high-pressure jet grouting device according to claim 1, characterized in that: The mud pressure delivery assembly (6) further comprises a limit slide bar (605) which freely slides up and down and passes through the top of the mud pressure delivery tank (601), and the lower end of which extends to the top of the mud pressure delivery tank (601) and is fixedly connected to the top surface of the pressure delivery plate (604); an upper limit spring (606) whose upper end is fixedly connected to the top of the limit slide bar (605) and whose lower end is freely retractable; and a lower limit spring (607) whose lower end is fixedly connected to the bottom of the limit slide bar (605) and whose upper end is freely retractable; the pressure delivery shaft (602) comprises a threaded surface pressure delivery shaft (6021) having a threaded outer surface, and a smooth surface pressure delivery shaft (6022) which is arranged at both ends of the threaded section pressure delivery shaft (6021) and has a smooth outer surface.

3. The high-pressure jet grouting device according to claim 2, characterized in that The mud pressure delivery assembly (6) further comprises a spring compression protection cover (609), the bottom of the spring compression protection cover (609) is fixedly connected to the top of the mud pressure delivery tank (601), and the top opening of the spring compression protection cover (609) is used to accommodate an upper limit spring (606) abutting against the top of the mud pressure delivery tank (601).

4. The high-pressure jet grouting device according to claim 1, characterized in that The mud conveying pipe (608) includes a connecting plate (6082) with a sealing groove on one side, an upper mud conveying pipe (6083) whose upper end is connected to the bottom of the mud pressure tank (601) and whose lower end passes through the top of the connecting plate (6082) and is connected to the sealing groove, a sealing head (6084) that can be horizontally slidably plugged into the sealing groove, a connecting hole (6085) that passes through the sealing head (6084) from top to bottom and is used to connect the upper mud conveying pipe (6083) and the lower mud conveying pipe (6087), a sealing head push-pull rod (6086) with one end fixedly connected to the sealing head (6084) and the other end rotatably connected to the transmission shaft (406), and a lower mud conveying pipe (6087) with its upper end passing through the bottom of the connecting plate (6082) and being connected to the sealing groove.

5. The high-pressure jet grouting device according to claim 4, characterized in that The diameter of the communicating hole (6085) is the same as the diameter of the upper mud delivery pipe (6083) and the lower mud delivery pipe (6087).

6. The high-pressure jet grouting device according to claim 1, characterized in that The transmission control assembly (5) comprises a pedal (501), a pedal rod (502) having one end connected to the bottom of the pedal (501) and the other end hinged to the base (1), and a force transmission rod (503) having one end hinged to the middle of the pedal rod (502) and the other end hinged to the main push rod (402).

7. The high-pressure jet grouting device according to claim 1, characterized in that: A feeding port (206) is provided on the top of the slurry stirring tank (201).

8. The high-pressure jet grouting device according to claim 1, characterized in that It also includes a universal wheel (101) arranged at the bottom of the base (1).

9. The high-pressure jet grouting device according to claim 1, characterized in that It also includes a push rod (102) arranged at one end of the base (1).

10. The high-pressure jet grouting device according to claim 1, characterized in that The mud delivery pipe (608) is provided with a mud delivery valve (6081).

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