CN116356796A - Quick freezing solidification processing device of long-range silence ground in beach area - Google Patents

Abstract

The invention relates to a rapid freezing and solidifying device for a remote mute foundation in a beach area, which belongs to the field of soft foundation solidifying experimental devices and comprises a projectile and an ejection device for ejecting the projectile; a liquid nitrogen cavity is arranged in the projectile; a liquid nitrogen outlet is formed in the surface wall of the projectile, and the liquid nitrogen outlet is communicated with the liquid nitrogen cavity; the liquid nitrogen cavity is filled with liquid nitrogen; a baffle is connected to the liquid nitrogen outlet and is used for sealing the liquid nitrogen cavity; the projectile is connected with a tailstock, and a pull rope is connected between the tailstock and the baffle; when the tail seat is impacted, the tail seat breaks away the baffle plate from the liquid nitrogen outlet through the pull rope. The device is used for solidifying the soft foundation area by transmitting the transmitting bullet to the soft foundation area and utilizing the liquid nitrogen in the transmitting bullet, so that constructors or engineering are not needed to go to the soft foundation ground site, noise is not generated, and the solidifying speed is high.

Description

Quick freezing solidification processing device of long-range silence ground in beach area

Technical Field

The invention relates to the field of soft foundation solidification experimental devices, in particular to a rapid freezing solidification treatment device for a remote mute foundation in a beach area.

Background

The natural water content of soft soil in a beach area is higher than the liquid limit, the pore ratio is large, the compressibility is high, the strength is extremely low and is always in a flowing state, so that the roadbed cannot form a stable construction platform. In order to effectively improve the mechanical property of soft soil and ensure the bearing capacity of the soft soil, the existing treatment mode at present comprises a drainage pre-pressing method and a replacement filling method.

The pre-compaction method is to pre-compaction the foundation soil before building or before completion of building to solidify and compress the foundation soil to some extent, to raise the strength of the foundation and to reduce post-construction settlement of the building and to stabilize and secure the building during construction. The method of changing filling is to dig out the weak soil in a certain range below the foundation ground, and then backfill the material with high strength, low compressibility and no corrosiveness

Both the prior methods require construction of engineering machinery at construction sites, and for the swamp beach areas, workers and engineering machinery are difficult to enter, so that the construction sites cannot be constructed quickly, and the construction period is prolonged.

In view of the dilemma of the prior art, it is necessary to provide a new foundation curing device for experiments, which provides a theoretical basis for curing design in soft soil areas such as marsh mud and the like in the future.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention provides a rapid freezing and solidifying treatment device for a remote mute foundation in a beach area, which aims to solve the technical problem of rapidly solidifying soft soil areas such as a marsh beach area under the condition that engineering machinery is not used.

In order to achieve the purpose, the invention relates to a rapid freezing and solidifying device for a remote mute foundation in a beach area, which comprises a projectile and an ejection device for ejecting the projectile;

a liquid nitrogen cavity is arranged in the projectile;

a liquid nitrogen outlet is formed in the surface wall of the projectile, and the liquid nitrogen outlet is communicated with the liquid nitrogen cavity; the liquid nitrogen cavity is filled with liquid nitrogen; a baffle is connected to the liquid nitrogen outlet and is used for sealing the liquid nitrogen cavity;

the projectile is connected with a tailstock, and a pull rope is connected between the tailstock and the baffle; when the tail seat is impacted, the tail seat breaks away the baffle plate from the liquid nitrogen outlet through the pull rope.

Further, the projectile also comprises an ignition triggering cavity and a device cavity;

a needle seat is arranged in the ignition triggering cavity and is fixed on the tailstock; a firing pin is fixed on the needle seat and is positioned in the ignition triggering cavity; the ignition triggering cavity is filled with gunpowder, and one end of the firing pin, which is far away from the needle seat, is contacted with the gunpowder and is used for igniting the gunpowder after the tailstock moves;

the device cavity is internally provided with a driving circuit, and the driving circuit comprises a battery, a trigger pin and a thermistor which are mutually connected in series, wherein the thermistor is used for receiving heat generated by gunpowder combustion and increasing current in the driving circuit;

an opening assembly is arranged at one end of the projectile far away from the tailstock, an opening assembly for opening the opening assembly is arranged in the equipment cavity, and the trigger needle is contacted with the opening assembly; the triggering needle enables the umbrella opening assembly to act through current increase, and the umbrella opening assembly is used for enabling the opening assembly to open.

The spreader assembly is fixed in the soft foundation soil layer, so that the environment for stably releasing liquid nitrogen to the projectile is facilitated.

Further, the umbrella opening assembly includes:

an umbrella handle fixed in the equipment cavity, wherein an installation cavity is formed in the umbrella handle, and the umbrella handle is in a straight cylindrical shape;

an umbrella opening button is arranged on the surface wall of the umbrella handle in a sliding way along the radial direction, one end of the umbrella opening button extends into the mounting cavity, and the other end of the umbrella opening button is abutted against the trigger needle; one end of the umbrella opening button extending into the mounting cavity is fixed with a U-shaped ring, and a guide rod is fixed on the U-shaped ring;

an inner sleeve is arranged in the mounting cavity, the inner sleeve is a straight pipe, one end of the inner sleeve is fixed on the inner wall of the mounting cavity, and the other end of the inner sleeve extends out of the mounting cavity from one end close to the supporting component;

the inner sleeve is sleeved with an outer sleeve, the outer sleeve is a straight pipe, and the expanding assembly is arranged on the outer sleeve; the outer sleeve is provided with a chute for the inner sleeve to slide, the chute is provided with a central spring, and the central spring is in a compressed state and is used for driving the outer sleeve to move along the axis of the central spring in a direction away from the mounting cavity;

the cylindrical surface wall of the outer sleeve is fixedly provided with a buckle which is abutted against the guide rod, the guide rod is used for limiting the action of the outer sleeve through the buckle and separating from the buckle after the umbrella opening button moves,

and the guide rod is connected with a limiting assembly for keeping the position of the buckle.

Further, the distractor assembly includes:

an upper nest plate fixed on the end part of the outer sleeve far away from one end of the installation cavity; the sleeve ring is sleeved on the outer sleeve and is arranged on the outer sleeve in a relatively sliding manner along the axis of the outer sleeve; two groups of connecting rods which are symmetrical along the center of the axis of the outer sleeve; fixed pulleys and movable pulleys respectively fixed on the upper nest plate and the lantern ring; one end is wound on the circumference outer wall of the fixed pulley and the movable pulley and is fixedly connected with the fixed pulley; the other end of the pull rope is fixed with an elastic pressing sheet, an accommodating cavity is arranged in the inner sleeve, and the elastic pressing sheet is fixed in the accommodating cavity;

the connecting rod comprises a first supporting rod and a second supporting rod, and one end of the first supporting rod is hinged on the upper nest plate; one end of the second supporting rod is hinged on the slip ring, and the other end of the second supporting rod is hinged at the middle position of the first supporting rod.

Further, the guide rod is arranged on the U-shaped ring in a penetrating manner along the sliding direction of the umbrella opening button, and comprises a limiting part and a guide part, wherein the limiting part is in contact with the buckle;

further, the limiting assembly comprises a limiting spring sleeved on the guide rod, and the length direction of the spring is parallel to the moving direction of the umbrella opening button; the inner wall of the installation cavity is fixedly provided with a connecting block, and two ends of the spring are respectively abutted against the surface wall of the U-shaped ring back umbrella opening button and the surface wall of the connecting block.

The ejection device includes:

a base plate fixed on a hard base surface; a supporting frame is fixed on the base plate; the supporting frame is rotationally connected with a cylinder body which is obliquely arranged and is in a straight cylindrical shape; an electric valve is fixed on the inner wall of the cylinder; the inside of the cylinder body is provided with a gas storage pressurizing cavity and an ammunition cavity; the electric valve is arranged between the gas storage pressurizing cavity and the ammunition cavity and is used for communicating or blocking the gas storage pressurizing cavity and the ammunition cavity; the air storage pressurizing cavity is connected with an air injection nozzle, the air injection nozzle is communicated with the air storage pressurizing cavity, and the air injection nozzle is connected with an air compressor and is used for injecting air into the air storage pressurizing cavity for pressurizing.

The beneficial effects are that: 1. the launching bullets are launched out through the ejection device and land in the soft foundation area, and soil layer water of the soft foundation is frozen and solidified after liquid nitrogen flows out, so that the aim of mute solidification is fulfilled; meanwhile, constructors or machines are not required to reach the soft foundation soil layer site.

2. The expanding assembly is arranged, so that the position of the projectile in the soft foundation soil layer can be ensured, and a stable environment is provided for liquid nitrogen to flow out.

Drawings

FIG. 1 is a schematic view of the overall structure of the present embodiment;

FIG. 2 is a schematic diagram of the experiment of the present embodiment;

FIG. 3 is a schematic view of the internal structure of a projectile;

fig. 4 is an enlarged view at a in fig. 3;

FIG. 5 is a cross-sectional view taken at C-C of FIG. 4;

FIG. 6 is a cross-sectional view of the inner and outer sleeves positioned at the angle of FIG. 4;

fig. 7 is a schematic view of a connection structure of the fixed pulley and the movable pulley disposed at an angle in fig. 3.

1. A base plate; 2. a support frame; 3. a long axis; 4. a tripod; 5. a cylinder; 6. an electric valve; 7. a gas storage pressurizing cavity; 8. a medicine ejection cavity; 9. an air pressure sensor; 10. an air injection nozzle; 11. a liquid nitrogen chamber; 12. an ignition triggering cavity; 13. an equipment chamber; 14. a liquid nitrogen outlet; 15. a baffle; 16. a pull rope; 17. a tailstock; 18. a needle stand; 19. a striker; 20. powder; 21. triggering a needle; 22. a thermistor; 23. an umbrella handle; 24. a mounting cavity; 25. an umbrella opening key; 26. a U-shaped ring; 27. a guide rod; 271. a limit part; 272. a linkage part; 28. a limit spring; 29. a connecting block; 30. an inner sleeve; 31. an outer sleeve; 32. a chute; 33. a center spring; 34. a buckle; 35. a slip ring; 36. a nest plate is arranged; 37. a fixed pulley; 38. a movable pulley; 39. a steel rope; 40. a receiving chamber; 41. spring tabletting; 42. a first support bar; 43. and a second support bar.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to fig. 1 and 2, a rapid freezing and solidifying device for a remote mute foundation in a beach area is mainly used for experiments, is an experimental device and provides theoretical basis for the implementation of related mechanical construction in the future.

The solidifying device mainly comprises an ejection device and a projectile. The ejection device is mainly used for remotely ejecting the ejection bomb to soft foundation areas such as beach and the like, and the ejection bomb is solidified in the soft foundation areas such as beach and the like in a freezing mode.

Referring to fig. 1, in particular, the ejector comprises a base plate 1, the base plate 1 being placed on the ground of a hard foundation, the base plate 1 being able to be fixed to the ground of the hard foundation by means of bolts or other means. The upper surface wall of the base plate 1 is fixed with a support frame 2 by welding or other modes, and a long shaft 3 is arranged on the support frame 2 in a penetrating way. The two ends of the long shaft 3 along the axial direction respectively penetrate through two corresponding side walls of the support frame 2. The two ends of the long shaft 3 are respectively connected with a nut in a threaded manner, and the two nuts are abutted against the two surface walls of the corresponding support frame 2. The rotation of the long shaft 3 along the axis thereof is restricted under the friction force generated by the interference of the nut and the surface wall of the support frame 2. In this embodiment, the axis of the long shaft 3 is directed inward toward the paper surface.

The device also comprises a cylindrical body 5 which is in a straight cylindrical shape, wherein the cylindrical body 5 is obliquely arranged, and one end faces the direction of the support frame 2. One end of the cylinder 5 facing the direction of the support frame 2 is welded or otherwise fixed with a connecting bracket, the connecting bracket is fixed on the circumferential side wall of the long shaft 3 through welding or other modes, the whole cylinder 5 rotates along the axis of the long shaft 3, and the height of one end of the cylinder 5 far away from the connecting bracket is changed; the end of the cylinder 5 far away from the connecting bracket is higher than the end fixed with the connecting bracket. The vertical plane of the axis of the cylinder 5 and the vertical plane of the axis of the long shaft 3 are mutually perpendicular. The tripod 4 is arranged on the circumferential surface wall of the cylinder 5, the tripod 4 is respectively hinged on the circumferential surface wall of the cylinder 5, three frames of the tripod can respectively rotate, the bottom sides of the three frames are abutted on the ground of the hard foundation, and the tripod is used for providing supporting force for the middle part of the cylinder 5.

An electrically operated valve 6 is mounted on the inner wall of the cylinder 5 by bolts or other means. The original internal cavity of the cylinder 5 is divided into two parts along the axis of the cylinder 5 by the electric valve 6, and the two parts are respectively a gas storage pressurizing cavity 7 and an ammunition cavity 8. The end of the spring chamber 8 remote from the connecting bracket is open. The electric valve 6 is arranged between the gas storage pressurizing cavity 7 and the ammunition cavity 8 and is used for communicating or blocking the gas storage pressurizing cavity 7 and the ammunition cavity 8. The electric valve 6 is opened, and the air storage pressurizing cavity 7 and the medicine ejection cavity 8 are communicated; the electric valve 6 is closed, and the air storage pressurizing cavity 7 and the medicine ejection cavity 8 are not communicated. The air storage pressurizing cavity 7 is arranged at the position of the cylinder 5 close to the connecting bracket.

The circumferential wall of the cylinder 5 is fixed with a pressure sensor 9 by threads or other modes, a pressure monitoring unit of the pressure sensor 9 extends into the air storage pressurizing cavity 7, a display unit of a gas display is arranged outside the cylinder 5, and the gas display is used for monitoring and displaying the pressure of the gas in the air storage pressurizing cavity 7. The circumferential surface wall of the cylinder 5 is also provided with an air injection nozzle 10, the air injection nozzle 10 is communicated with the air storage pressurizing cavity 7, the air injection nozzle 10 is fixed with an air compressor through threads or other modes, and the air compressor is used for injecting air into the air storage pressurizing cavity 7 through the air injection nozzle 10 for pressurizing.

The process of putting the projectile into the ejection device is as follows: a projectile is thrown into the ammunition chamber 8, and the projectile moves to a position contacting the electric valve 6 due to self weight, and the electric valve 6 is in a closed state. The air compressor has pressure difference with the air storage pressurizing cavity 7, so the air compressor injects air into the air storage pressurizing cavity 7 through the air injection nozzle 10. The air pressure sensor 9 monitors the air pressure in the air storage pressurizing cavity 7, and after the air pressure reaches a preset threshold value, the air pressure in the air pressurizing cavity drives the projectile in the explosive cavity 8 to fly out through the opening of the electric valve 6. In the present embodiment, the control mode of the electric valve 6 may be that the experimenter observes the value of the air pressure sensor 9 and then manually controls the opening of the electric valve 6. In other embodiments, the controller may be electrically connected to the air pressure sensor 9 and the electric valve 6, and the controller may control the electric valve 6 to open after the air pressure sensor 9 reaches a threshold value.

Referring to fig. 3, the projectile includes:

a projectile body having a length along the up-down direction of fig. 3; three independent chambers, namely a liquid nitrogen chamber 11, an ignition triggering chamber 12 and an equipment chamber 13 are arranged in the device.

One end of the projectile body along the length direction is provided with a spreading component which is connected with the structure in the equipment cavity 13, the spreading component is used for being inserted into the soft soil foundation after the projectile body is landed, and the spreading component is automatically controlled to spread by equipment in the equipment cavity 13.

Specifically, the elastomeric body has two liquid nitrogen outlets 14 on its surface wall and a liquid nitrogen inlet (not shown). The liquid nitrogen outlet 14 and the liquid nitrogen inlet are both communicated with the liquid nitrogen cavity 11. The liquid nitrogen chamber 11 is filled with liquid nitrogen through a liquid nitrogen inlet, the liquid nitrogen inlet is opened only when liquid nitrogen is injected into the liquid nitrogen chamber 11, and the liquid nitrogen inlet is closed after the liquid nitrogen chamber 11 is filled with liquid nitrogen. A baffle 15 is welded or otherwise fixed to the inner walls of the two liquid nitrogen outlets 14, and the baffle 15 is used for keeping the liquid nitrogen outlets 14 in a normally closed state. The baffle 15 is fixed with a pull rope 16 by welding or other modes, the two baffle 15 shares two pull ropes 16, and one end of the two pull ropes 16 is fixedly connected with the corresponding baffle 15. Referring to fig. 3, a tail block 17 is bonded or otherwise secured to the outer wall of the projectile at an end longitudinally remote from the spreader assembly, the tail block 17 being welded or otherwise fixedly attached to the other ends of the two pull cords 16, the pull cords 16 being held in a taut condition. The tailstock 17 and the spreader assembly are located at each end of the projectile in the longitudinal direction.

The whole length of the ignition triggering cavity 12 is arranged along the length direction of the projectile body, a needle seat 18 is arranged in the ignition triggering cavity 12, the needle seat 18 is positioned at one end of the ignition triggering cavity 12, which is close to the tail seat 17, the needle seat 18 is fixedly connected with the tail seat 17 through welding or other modes, and the needle seat 18 is not connected with the inner wall of the ignition triggering cavity 12. A striker 19 is welded or otherwise secured to the surface of the end of the needle mount 18 facing away from the tailstock 17, the striker 19 being located in the ignition firing chamber 12. The axial direction of the striker 19 is along the length of the projectile. The ignition triggering cavity 12 is filled with gunpowder 20, the gunpowder 20 is filled at one end of the ignition triggering cavity 12 far away from the needle seat 18, and one end of the firing pin 19 far away from the needle seat 18 is just contacted with the gunpowder 20.

The powder 20 is located in close proximity to the device cavity 13.

A drive circuit is provided in the device chamber 13. The driving circuit includes a battery, a trigger pin 21, a thermistor 22, and wires. The battery, trigger pin 21 and thermistor 22 are connected in series by a wire. The trigger needle 21 is made of metallic zinc, and is easily expanded after being heated mainly by utilizing the characteristic of large thermal expansion coefficient of metallic zinc. The thermistor 22 is glued or otherwise fixed to the inner wall of the device cavity 13 and the thermistor 22 is placed closest to the pyrotechnic charge 20, in order that the heat generated by the combustion of the pyrotechnic charge 20 can be directly transferred to the thermistor 22.

An umbrella handle 23 is also arranged in the equipment cavity 13, the umbrella handle 23 is in a straight cylindrical shape, the umbrella handle 23 is fixed on the inner wall of the equipment cavity 13 by welding or other modes, and the axial direction of the umbrella handle 23 is along the length direction of the elastomer. The interior of the umbrella handle 23 is provided with a mounting cavity 24 along the axial direction of the umbrella handle 23. The circumferential side wall of the umbrella handle 23 is provided with an umbrella opening button 25, and the umbrella opening button 25 is cut off in a plane perpendicular to the axis of the umbrella handle 23 and is in a toppling I shape when seen in the direction of the axis of the umbrella handle 23. The umbrella opening button 25 is provided on the umbrella handle 23 so as to relatively slide in the radial direction of the umbrella handle 23, and the umbrella opening button 25 is provided on the circumferential surface wall of the umbrella handle 23 in a penetrating manner in the radial direction. The surface wall of the umbrella handle 23 facing to the outer end of the mounting cavity 24 is contacted with the trigger needle 21, and the trigger needle 21 is positioned outside the umbrella handle 23; the other end extends into a mounting cavity 24 inside the umbrella handle 23.

Referring to fig. 4 and 5, the umbrella opening button 25 is fixed with a U-shaped ring 26 by welding or other means at one end of the installation cavity 24, and the opening direction of the U-shaped ring 26 faces the umbrella opening button 25. The U-ring 26 is welded or otherwise secured with a guide bar 27. The guide rod 27 is positioned on one side of the U-shaped ring 26 away from the umbrella opening button 25, and the axis of the guide rod 27 is parallel to the axis of the umbrella opening button 25. The guide rod 27 is provided to penetrate the U-shaped ring 26 in the axial direction thereof. The U-shaped ring 26 is respectively provided with a limiting part 271 and a linkage part 272 by taking the shape of the part penetrated by the guide rod 27 as a boundary, wherein the limiting part 271 is positioned at one side close to the umbrella opening button 25, and the linkage part 272 is positioned at one side far away from the umbrella button 25.

Referring to fig. 5, a connection block 29 is welded or otherwise fixed to the inner wall of the installation cavity 24, a limit spring 28 is disposed on the connection block 29, one end of the limit spring 28 abuts against the connection block 29, and the length direction of the limit spring 28 is parallel to the axial direction of the guide rod 27. The limiting spring 28 is sleeved on the linkage part 272, and the other end of the limiting spring 28 is abutted against a side surface wall of the U-shaped ring 26, which is close to the connecting block 29. The spacing spring 28 is always in a compressed state.

Referring to fig. 3 and 6, the aforementioned spreader assembly includes:

the telescopic umbrella rib consists of an inner sleeve 30 and an outer sleeve 31, wherein the inner sleeve 30 and the outer sleeve 31 are in a straight circular tube shape, and the axis of the inner sleeve 30, the axis of the outer sleeve 31 and the axis of the umbrella handle 23 are overlapped. One end of the inner sleeve 30 is positioned in the mounting cavity 24 inside the umbrella handle 23, and the other end of the inner sleeve 30 penetrates out of the mounting cavity 24 near the surface wall of one end of the opening assembly. The end of the inner sleeve 30 in the mounting cavity 24 is connected to the inner wall of the mounting cavity 24 by welding or otherwise fixedly.

The outer sleeve 31 is sleeved on the inner sleeve 30, one end of the outer sleeve 31 is positioned in the installation cavity 24 in the umbrella handle 23, and the other end of the outer sleeve 31 penetrates out from the surface wall of one end of the installation cavity 24, which is close to the opening assembly. The outer wall of the portion of the outer sleeve 31 that extends from the mounting cavity 24 is provided with the aforementioned distracting assembly. The outer sleeve 31 is arranged on the outer wall of the inner sleeve 30 so as to be relatively slidable with respect to the axis of the inner sleeve 30, and during this process the outer sleeve 31 is also displaced with respect to the outer wall of the umbrella handle 23.

The outer sleeve 31 is provided with a chute 32 along the axial direction thereof for the relative displacement of the inner sleeve 30 in the outer sleeve 31. The slide groove 32 is provided with a center spring 33, and the longitudinal direction of the center spring 33 is along the axial direction of the outer sleeve 31. Both ends of the center spring 33 respectively abut against the outer wall of the inner sleeve 30 and the outer wall of the chute 32. The center spring 33 is always in a compressed state, and the elastic restoring force generated by the center spring 33 tends to move the outer sleeve 31 relative to the inner sleeve 30 in the direction in which the distractor assembly is located.

A catch 34 is welded or otherwise secured to the circumferential outer wall of the outer sleeve 31. The length direction of the catch 34 is along the radial direction of the outer sleeve 31. The buckle 34 is located in the mounting cavity 24, and the buckle 34 abuts against the side of the limiting portion 271 away from the opening assembly as seen from the axis of the outer sleeve 31. Limited by the limitation of the limiting part 271 and the buckle 34, the outer sleeve 31 cannot move along the axis of the inner sleeve 30 toward the direction of the opening assembly under the elastic force of the central spring 33.

The peripheral surface wall of the outer sleeve 31 is sleeved with a slip ring 35, the slip ring 35 is positioned outside the mounting cavity 24, and the slip ring 35 is arranged on the peripheral surface wall of the outer sleeve 31 in a relatively sliding manner along the axis of the outer sleeve 31. An end of the outer sleeve 31 remote from the tailstock 17 is welded or otherwise secured with an upper nest plate 36. Two groups of connecting rods are arranged between the upper nest plate 36 and the slip ring 35, and the two groups of connecting rods are arranged along the center of the axis of the outer sleeve 31.

The link includes a first support bar 42 and a second support bar. 43 are hinged to the peripheral wall of the upper nest plate 36 by a shaft, the upper ends of the first support rods 42 being outwardly opened along the axis of the outer sleeve 31, as seen in fig. 3. The lower end of the second support rod is hinged on the peripheral wall of the slip ring 35 through a shaft, and the upper end of the second support rod is hinged on the middle position of the first support rod 42 through a shaft. The hinge axes of the first support bar 42 and the second support bar are parallel.

To achieve the above-described driving of the first strut rods to spread outwards, fixed pulleys 37 are bolted or otherwise fixed to the upper nest plate 36 and movable pulleys 38 are bolted or otherwise fixed to the slip ring 35. The fixed pulley 37 and the movable pulley 38 form a pulley block through a steel rope 39. One end of the steel cord 39 is wound from the uppermost end of the circumferential outer wall of the fixed sheave 37, then the end is wound downward around the lowermost end of the circumferential outer wall of the movable sheave 38, and finally the end of the steel cord 39 is tied to the lowermost end of the circumferential outer wall of the fixed sheave 37. The end of the steel cord 39 that does not pass around the fixed pulley 37 or the movable pulley 38 is called the free end.

The free end of the steel cable 39 penetrates into the sliding groove 32 from a side surface wall of the outer sleeve 31, which is close to the upper nest plate 36, and penetrates into the inner sleeve 30 along the axis of the inner sleeve 30, a containing cavity 40 is arranged in the inner sleeve 30 along the axis direction, the free end of the steel cable 39 is fixedly connected with a spring pressing piece 41 through welding or other modes, and the spring pressing piece 41 is clamped and fixed in the containing cavity 40.

In summary, the whole projectile launching and expanding process is as follows:

the projectile body (comprising the opening assembly) is placed in the ammunition cavity 8 of the barrel 5, one end of the projectile body facing the opening assembly is close to the air storage pressurizing cavity 7, and one end of the tailstock 17 is far away from the air storage pressurizing cavity 7. The ammunition slides down to the bottommost side of the ammunition chamber 8 by its own weight. The air compressor charges air in the air storage pressurizing cavity 7, and when the air pressure reaches a threshold value, the electric valve 6 is opened. The pressurized air pressure impacts the spreader assembly, allowing the projectile (including the spreader assembly) to fly out of the barrel 5.

During flight, the weight of the projectile is greater at the end facing the tailstock 17 than at the end facing the spreader assembly. The projectile is in a position during the flight in the air with the tailstock 17 facing downwards. The tailstock 17 is firstly contacted with soft foundation areas such as marsh mud flat, and under the action of converting the weight potential energy of the projectile body into kinetic energy, the tailstock 17 and the spreading assembly are inserted into soil layers of the soft foundation areas.

After the tailstock 17 strikes the soil layer in the soft foundation area, the tailstock 17 is impacted, the tailstock 17 and the projectile body deviate along the radial direction of the projectile body, and as the pull rope 16 is tight, the pull rope 16 on one side of the deviation of the tailstock 17 can be subjected to the pulling force generated by the deviation, the pulling force can be transmitted to the corresponding baffle 15 through the pull rope 16, the baffle 15 and the surface wall of the liquid nitrogen outlet 14 displace, so that the corresponding liquid nitrogen outlet 14 is torn, the liquid nitrogen leaks out from the liquid nitrogen outlet 14 to quickly freeze water in the soft foundation area, the soft foundation area is quickly frozen and solidified, and the solidification is completed at the moment.

In addition, since the tailstock 17 is shifted, the needle mount 18 fixed to the tailstock 17 is also shifted correspondingly, and the striker 19 on the needle mount 18 is also shifted. The top of the striker 19 (the end in contact with the powder 20) rubs the powder 20 due to the relative displacement with the powder 20, and the heat generated by the friction burns the powder 20, so that the powder 20 burns out rapidly in the direction toward the spreader assembly. The heat generated by the powder 20 is transferred to the thermistor 22 by heat transfer, the resistance of the thermistor 22 is rapidly reduced, the current of the whole driving circuit is rapidly increased, the current increases the heat generated by the trigger pin 21, and the temperature is increased. Since the thermal expansion coefficient of the trigger pin 21 is large, the thermal expansion of the trigger pin 21 after the temperature rises is remarkable, and the volume of the trigger pin 21 becomes rapidly large. ,

after the volume of the trigger pin 21 becomes larger, the trigger pin 21 pushes the umbrella opening button 25 to move, and compresses the limit spring 28. The stopper 271 of the guide bar 27 moves with the movement of the U-shaped ring 26. The stopper 271 is disengaged from the buckle 34 by moving. After the limit of the limit portion 271 to the buckle 34 is lost, the deformation of the center spring 33 is restored, and the restoring force of the center spring 33 pushes the outer sleeve 31 to move in the direction of the expanding assembly along the axial direction. Limited by the catch 34 and the inner wall of the mounting cavity 24, the catch 34 will eventually abut against the inner surface wall of the mounting cavity 24 adjacent to the distracting assembly and will not move further.

In the process of pushing the outer sleeve 31 to move by the central spring 33, the upper nest plate 36 and the fixed pulley 37 move along with the movement of the outer sleeve 31. After the movement of the fixed pulley 37, the position of the spring presser 41 is fixed in the accommodating chamber 40, and the position of the spring presser 41 does not move, so that the fixed pulley 37 is further from the spring presser 41. Since the entire length of the steel cord 39 is unchanged, naturally the distance between the fixed pulley 37 and the movable pulley 38 becomes shorter and shorter, that is, the movable pulley 38 moves in the axial direction of the outer sleeve 31 toward the fixed pulley 37 by means of the slip ring 35. As the slip ring 35 slides along the outer sleeve 31, the first support rod 42 and the second support rod also generate corresponding actions and are spread in the soft soil foundation, so that the opening action of the spreading component is completed.

The whole curing and supporting process is completed within a few minutes, and the projectile is launched to the soft foundation area for curing under the action of the launching device, so that workers or engineering machinery is not required to reach the soft foundation area. The firing distance and angle of the firing projectile can be used for acquiring the relevant experience of the amount of the gunpowder 20 by firing the firing projectile for multiple times, so that the firing projectile can be ensured to be fired to a soft foundation area.

The application has the advantages that the projectile is utilized to fly to soft foundation areas such as swamps and the like, and the soft foundation areas are automatically solidified through liquid nitrogen. And construction workers and engineering machinery are not required to be carried out on site in a soft foundation area. The curing process of the present application is relatively quiet because no noise is generated by the engineering machinery. And the solidification speed of liquid nitrogen is very fast, can solidify the soft foundation area fast.

With the above-described preferred embodiments according to the present invention as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present invention. The technical scope of the present invention is not limited to the description, but must be determined according to the scope of claims.

Claims (6)

1. The quick freezing and solidifying device for the remote mute foundation in the beach area is characterized by comprising a projectile and an ejection device for ejecting the projectile;

a liquid nitrogen cavity is arranged in the projectile;

a liquid nitrogen outlet is formed in the surface wall of the projectile, and the liquid nitrogen outlet is communicated with the liquid nitrogen cavity; the liquid nitrogen cavity is filled with liquid nitrogen; a baffle is connected to the liquid nitrogen outlet and is used for sealing the liquid nitrogen cavity;

the projectile is connected with a tailstock, and a pull rope is connected between the tailstock and the baffle; when the tail seat is impacted, the tail seat breaks away the baffle plate from the liquid nitrogen outlet through the pull rope.

2. The rapid freezing and solidifying device for a remote mute foundation in a beach area according to claim 1, wherein the firing projectile further comprises an ignition triggering cavity and a device cavity;

a needle seat is arranged in the ignition triggering cavity and is fixed on the tailstock; a firing pin is fixed on the needle seat and is positioned in the ignition triggering cavity; the ignition triggering cavity is filled with gunpowder, and one end of the firing pin, which is far away from the needle seat, is contacted with the gunpowder and is used for igniting the gunpowder after the tailstock moves;

the device cavity is internally provided with a driving circuit, and the driving circuit comprises a battery, a trigger pin and a thermistor which are mutually connected in series, wherein the thermistor is used for receiving heat generated by gunpowder combustion and increasing current in the driving circuit;

an opening assembly is arranged at one end of the projectile far away from the tailstock, an opening assembly for opening the opening assembly is arranged in the equipment cavity, and the trigger needle is contacted with the opening assembly; the triggering needle enables the umbrella opening assembly to act through current increase, and the umbrella opening assembly is used for enabling the opening assembly to open.

3. The beach area remote mute foundation rapid freeze-cure apparatus of claim 2, wherein the umbrella opening assembly comprises:

an umbrella handle fixed in the equipment cavity, wherein an installation cavity is formed in the umbrella handle, and the umbrella handle is in a straight cylindrical shape;

an umbrella opening button is arranged on the surface wall of the umbrella handle in a sliding way along the radial direction, one end of the umbrella opening button extends into the mounting cavity, and the other end of the umbrella opening button is abutted against the trigger needle; one end of the umbrella opening button extending into the mounting cavity is fixed with a U-shaped ring, and a guide rod is fixed on the U-shaped ring;

an inner sleeve is arranged in the mounting cavity, the inner sleeve is a straight pipe, one end of the inner sleeve is fixed on the inner wall of the mounting cavity, and the other end of the inner sleeve extends out of the mounting cavity from one end close to the supporting component;

the inner sleeve is sleeved with an outer sleeve, the outer sleeve is a straight pipe, and the expanding assembly is arranged on the outer sleeve; the outer sleeve is provided with a chute for the inner sleeve to slide, the chute is provided with a central spring, and the central spring is in a compressed state and is used for driving the outer sleeve to move along the axis of the central spring in a direction away from the mounting cavity;

the cylindrical surface wall of the outer sleeve is fixedly provided with a buckle, the buckle is abutted against the guide rod, and the guide rod is used for limiting the action of the outer sleeve through the buckle and separating from the buckle after the umbrella opening button moves;

and the guide rod is connected with a limiting assembly for keeping the position of the buckle.

4. A remote mute foundation rapid freeze-cure device for a beach area according to claim 3, wherein the spreader assembly comprises:

an upper nest plate fixed on the end part of the outer sleeve far away from one end of the installation cavity; the sleeve ring is sleeved on the outer sleeve and is arranged on the outer sleeve in a relatively sliding manner along the axis of the outer sleeve; two groups of connecting rods which are symmetrical along the center of the axis of the outer sleeve; fixed pulleys and movable pulleys respectively fixed on the upper nest plate and the lantern ring; one end is wound on the circumference outer wall of the fixed pulley and the movable pulley and is fixedly connected with the fixed pulley; the other end of the pull rope is fixed with an elastic pressing sheet, an accommodating cavity is arranged in the inner sleeve, and the elastic pressing sheet is fixed in the accommodating cavity;

the connecting rod comprises a first supporting rod and a second supporting rod, and one end of the first supporting rod is hinged on the upper nest plate; one end of the second supporting rod is hinged on the slip ring, and the other end of the second supporting rod is hinged at the middle position of the first supporting rod.

5. The rapid freezing and solidifying device for a remote mute foundation in a beach area according to claim 3, wherein the guide rod is arranged on the U-shaped ring in a penetrating manner along the sliding direction of the umbrella opening button, the guide rod comprises a limiting part and a guide part, and the limiting part is abutted against the buckle;

the limiting assembly comprises a limiting spring sleeved on the guide rod, and the length direction of the spring is parallel to the moving direction of the umbrella opening button; the inner wall of the installation cavity is fixedly provided with a connecting block, and two ends of the spring are respectively abutted against the surface wall of the U-shaped ring back umbrella opening button and the surface wall of the connecting block.

6. The rapid freezing and solidifying device for a remote mute foundation in a beach area according to claim 1, wherein the ejection device comprises:

a base plate fixed on a hard base surface; a supporting frame is fixed on the base plate; the supporting frame is rotationally connected with a cylinder body which is obliquely arranged and is in a straight cylindrical shape; an electric valve is fixed on the inner wall of the cylinder; the inside of the cylinder body is provided with a gas storage pressurizing cavity and an ammunition cavity; the electric valve is arranged between the gas storage pressurizing cavity and the ammunition cavity and is used for communicating or blocking the gas storage pressurizing cavity and the ammunition cavity; the air storage pressurizing cavity is connected with an air injection nozzle, the air injection nozzle is communicated with the air storage pressurizing cavity, and the air injection nozzle is connected with an air compressor and is used for injecting air into the air storage pressurizing cavity for pressurizing.

Images