Airtight pneumatic propulsion mechanism

Abstract

The present invention relates to the field of machinery, and specifically to a pneumatic propulsion mechanism. The airtight pneumatic propulsion mechanism comprises a propulsion mechanism and a pipeline, which allows the propulsion mechanism to move therein, wherein the pipeline is provided with a gas inlet and a gas outlet, and further comprises at least one section of columnar structure with a thickness; and the propulsion mechanism is provided with at least one kind of rolling component of a ball and a roller, the rolling component abutting against an inner wall of the pipeline. Compared with a piston and a piston pneumatic cylinder, the airtight pneumatic propulsion mechanism of the present invention has a smaller resistance, less abrasion, and has lower requirements for the purity of a flowing gas and the cleanliness and neatness of the inner wall of the pipeline. The operation speed and efficiency of an apparatus can be improved, and a failure rate of the apparatus is reduced, thereby greatly prolonging the service life.

Description

Airtight gas pressure propulsion mechanism Technical Field

[0001] The invention relates to the field of machinery, and in particular to a pneumatic propulsion mechanism. Background Art

[0002] Existing pneumatic propulsion mechanisms, such as pistons, utilize a tightly squeezed piston ring, resulting in high operating resistance and easy wear, resulting in a short service life and requiring frequent replacement. Furthermore, the manufacturing process is complex, making it difficult to manufacture piston cylinders suitable for long piston strokes. Cylinders longer than 2 meters are virtually impossible to manufacture.

[0003] During operation, the piston moves back and forth, so in order to reduce the energy consumed in the direction change process, the weight of the piston is often reduced in the design, which does not allow for more complex structural settings and limits performance.

[0004] For piston cylinders and pistons, the purity of the flowing gas is required to be high during use. If there are too many impurities, the impurities will squeeze into the sealing surface, causing accelerated wear of internal components. In actual use, it is often necessary to filter and purify the flowing gas or to have high requirements for the cleanliness and tidiness of the inner wall of the pipeline, which has the disadvantage of high maintenance cost.

[0005] Summary of the Invention

[0006] The purpose of the invention is to provide an airtight pneumatic propulsion mechanism to solve at least one of the above technical problems.

[0007] The technical problem solved by the invention can be achieved by adopting the following technical solutions:

[0008] An airtight air pressure propulsion mechanism includes a propulsion mechanism that allows the gas to generate a force in the pipeline, and is characterized in that it also includes at least one section of a columnar mechanism with a thickness for blocking the airflow; the propulsion mechanism is provided with a rolling component for supporting the inner wall of the pipeline, and the rolling component is at least one of a ball and a roller.

[0009] The propulsion mechanism that generates a force acting on the gas in the pipeline can be a propulsion mechanism driven by the gas pressure in the pipeline, or a propulsion mechanism that drives the gas in the pipeline.

[0010] The "airtight pneumatic propulsion mechanism" described above is suitable for operation in a pipeline, but the pipeline is not included in the defined structure and is not included in the airtight pneumatic propulsion mechanism.

[0011] Converting sliding friction into rolling friction through rolling elements allows the propulsion mechanism to operate at much higher speeds.

[0012] Even when running at higher speeds, there will be little wear on the contact parts. Mechanically, it has better reliability and a much longer service life.

[0013] In summary, the operating speed and efficiency of the equipment can be improved, the failure rate of the equipment can be reduced, and the service life of the equipment can be greatly extended.

[0014] The thickness of the columnar structure and the outer side of the propulsion structure are used to ensure airtightness. The airtightness is not limited to sealing, but can generate effective resistance to airflow, thereby generating thrust for the propulsion structure.

[0015] An airtight pneumatic propulsion mechanism includes a propulsion mechanism that allows the propulsion mechanism to be driven by air pressure in a pipeline, and the propulsion mechanism is a propulsion mechanism that allows the propulsion mechanism to advance in a curved pipeline; the propulsion mechanism has at least one curved structure in the advancing direction, and the curved structure matches the curvature of the inner wall of the curved pipeline;

[0016] The propulsion mechanism further includes at least one columnar mechanism having a thickness for blocking airflow;

[0017] The propulsion mechanism is provided with a rolling component for supporting against the inner wall of the pipe;

[0018] The propulsion mechanism is a magnet mechanism provided with a magnet;

[0019] Through the magnet mechanism, magnetic coupling is carried out with the magnetic device arranged outside the pipeline to transfer kinetic energy.

[0020] The rolling component may be at least one of a ball and a roller.

[0021] When the rolling components use balls, ball bearings and top ball bearings can be used.

[0022] When the rolling component is a roller, the roller has an outer edge with a protruding arc surface structure; the arc surface structure of the outer edge fits with the arc surface of the inner wall of the pipe to be adapted.

[0023] For example, if the radius of the arc section of the inner wall of the pipe being pressed is 10 cm, then the radius of the arc section of the outer edge of the roller b1 should be close to or even equal to 10 cm, so that the two can fit together.

[0024] When in use, the arc surface structure of the outer edge abuts against the inner wall of the pipe to be adapted.

[0025] The use of a curved surface structure can greatly increase the contact area between the roller and the inner wall of the pipe, thereby greatly reducing the pressure and protecting the roller and the pipe.

[0026] This prevents the rollers and pipes from being deformed by pressure or wear during long-term operation, allowing the equipment to operate stably for a much longer period of time.

[0027] In addition, because of the larger contact surface, even if there are small depressions or protrusions on the roller or pipe, it will not cause large fluctuations in the roller's operation, making the equipment run more smoothly. It has stronger fault tolerance and allows for appropriate reduction in processing difficulty. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a perspective diagram of the overall structure;

[0029] Figure 2 is a schematic diagram of the structure of the sliding propulsion mechanism;

[0030] Figure 3 is a schematic diagram of the cooperation between the pipe and the roller (the propulsion mechanism is omitted);

[0031] Figure 4 is a schematic structural diagram of an elastic ring;

[0032] Figure 5 is a schematic diagram of an overall assembly structure of the propulsion mechanism;

[0033] FIG6 is a schematic structural diagram of an overall assembly of the propulsion mechanism from another perspective;

[0034] Figure 7 is a schematic diagram showing the end-to-end assembly and disassembly of the auxiliary device and the propulsion mechanism;

[0035] Figure 8 is a schematic diagram of the end-to-end connection of the auxiliary device and the propulsion mechanism. DETAILED DESCRIPTION

[0036] In order to make the technical means, creative features, objectives and effects of the invention easier to understand, the invention is further explained below with reference to specific illustrations.

[0037] An airtight air pressure propulsion mechanism includes a propulsion mechanism that allows the gas to generate a force in the pipeline, and the propulsion mechanism is a propulsion mechanism that allows the gas to advance in a curved pipeline; the propulsion mechanism has at least one curved structure in the advancing direction, and the curved structure matches the curvature of the inner wall of the curved pipeline; the propulsion mechanism also includes at least one section of a columnar mechanism with a thickness for blocking the airflow; the propulsion mechanism is provided with a rolling component for supporting the inner wall of the pipeline; the propulsion mechanism is a magnetic mechanism provided with a magnet; through the magnetic mechanism, magnetic coupling is performed with a magnetic device provided outside the pipeline to transfer kinetic energy; the propulsion mechanism that generates a force with the gas in the pipeline is a propulsion mechanism that is driven to advance by air pressure in the pipeline, or a propulsion mechanism that drives the gas flow in the pipeline; at least three rollers arranged in a surrounding manner are respectively provided at the front and rear of the propulsion mechanism; the rollers arranged in a surrounding manner suspend the propulsion mechanism in the pipeline; the rolling direction of the rollers is along the advancing direction of the pipeline; the propulsion mechanism as a whole presents a curved shape that is adapted to travel through the pipeline.

[0038] 1 to 8 , the airtight gas pressure propulsion mechanism includes a propulsion mechanism 1 that allows the propulsion mechanism 1 to generate a force with the gas in the pipe 2. The propulsion mechanism 1 is a propulsion mechanism 1 that allows the propulsion mechanism 1 to advance in the curved pipe 2. The propulsion mechanism 1 has at least one curved structure in the advancing direction, and the curved structure matches the curvature of the inner wall of the curved pipe 2.

[0039] The propulsion mechanism 1 further includes at least one columnar mechanism 6 having a thickness for blocking airflow;

[0040] The propulsion mechanism 1 is provided with a rolling component for supporting against the inner wall of the pipe;

[0041] The propulsion mechanism 1 is a magnet mechanism provided with a magnet 7 .

[0042] Through the magnet mechanism, magnetic coupling is performed with the magnetic device arranged outside the pipe 2 to transfer kinetic energy.

[0043] The propulsion mechanism that generates a force with the gas in the pipeline can be a propulsion mechanism that is driven forward by the gas pressure in the pipeline, or a propulsion mechanism that drives the gas to flow in the pipeline.

[0044] The "airtight pneumatic propulsion mechanism" described above is suitable for operation in a pipeline, but the pipeline is not included in the defined structure and is not included in the airtight pneumatic propulsion mechanism.

[0045] The airtight pneumatic propulsion mechanism includes a propulsion mechanism 1 that allows it to be driven by air pressure in a pipe 2, the pipe 2 is provided with an air inlet and an air outlet, and also includes at least one section of a columnar mechanism 6 with thickness; the propulsion mechanism is provided with at least one rolling component selected from balls and rollers, and the rolling component is against the inner wall of the pipe.

[0046] Converting sliding friction into rolling friction through rolling elements allows the propulsion mechanism to operate at much higher speeds.

[0047] Even when running at higher speeds, there will be little wear on the contact parts. Mechanically, it has better reliability and a much longer service life.

[0048] In summary, the operating speed and efficiency of the equipment can be improved, the failure rate of the equipment can be reduced, and the service life of the equipment can be greatly extended.

[0049] The thickness of the columnar structure 6 and the outer side of the propulsion structure are used to ensure airtightness. The airtightness is not limited to sealing, but can generate effective resistance to airflow, thereby generating thrust for the propulsion structure.

[0050] The front part of the propulsion mechanism 1 is provided with at least one columnar mechanism 6 having a thickness for blocking the airflow;

[0051] The rear part of the propulsion mechanism 1 is provided with at least one columnar mechanism 6 having a thickness for blocking the airflow;

[0052] A magnet 7 is provided at the rear of the propulsion mechanism 1 .

[0053] By setting the columnar structure 6 in the front and back, a gap is left in the middle, one is to accommodate the magnet 1, the second is to balance the driving force front and back, and the third is to reduce the bearing pressure of the rear columnar structure 6 and improve air tightness.

[0054] The rolling component may be at least one of a ball and a roller.

[0055] When the rolling components use balls, ball bearings and top ball bearings can be used.

[0056] 1 , 2 , 3 , 5 , and 6 , when the rolling component is a roller b1 , the roller b1 has an outer edge with an outwardly protruding arc surface structure; the arc surface structure of the outer edge fits the arc surface of the inner wall of the pipe 2 to be adapted.

[0057] For example, if the radius of the arc cross section of the inner wall of the pipe 2 is 10 cm, the radius of the arc cross section of the outer edge of the roller b1 should be close to or even equal to 10 cm, so that the two can fit together.

[0058] When in use, the arc surface structure of the outer edge abuts against the inner wall of the pipe 2 to be adapted.

[0059] The use of the curved surface structure can greatly increase the contact area between the roller b1 and the inner wall of the pipe 2, thereby greatly reducing the pressure and further protecting the roller b1 and the pipe 2.

[0060] This prevents the roller b1 and the pipe 2 from being deformed by pressure or wear during long-term operation, allowing the device to operate stably for a much longer period of time.

[0061] In addition, because of the larger contact surface, even small depressions or protrusions on the roller b1 and the pipe 2 will not cause large fluctuations in the operation of the roller b1, making the equipment run more smoothly. It has stronger fault tolerance and can appropriately reduce the difficulty of the processing process.

[0062] At least three rollers b1 are arranged in a circumferential manner at the front and rear of the propulsion mechanism 1 .

[0063] The rollers b1 are arranged in a circular manner, so that the propulsion mechanism 1 is suspended in the pipeline 2.

[0064] The rolling direction of the roller b1 is along the forward direction of the pipeline, thereby avoiding the problem of turning during the movement.

[0065] The propulsion mechanism 1 as a whole presents a curved shape adapted to travel through the pipeline;

[0066] At least one roller b2 for pressing against the inner wall of the pipe is provided on a side of the propulsion mechanism 1 away from the center of the curved shape, between the front and rear parts.

[0067] The lateral support of the roller b2 prevents the bent middle portion of the propulsion mechanism 1 from sinking, thereby avoiding torsion, jamming and friction during movement.

[0068] After being limited by the pipeline in the pipeline, at least one place in the front and rear parts of the propulsion mechanism 1 is surrounded by at least three rollers b1, one of which has a radial (radial direction relative to the axial direction of the roller b1 shaft) shaking amplitude greater than 0.2 mm, and the shaking buoyancy of at least two other rollers b1 is limited to a radial (radial direction relative to the axial direction of the roller b1 shaft) shaking amplitude less than 0.1 mm.

[0069] By setting the swing margin by the roller b1 on one side and limiting the swing amplitude by at least two other rollers, it can adapt to the irregular inner wall of the pipeline, reduce pipeline process requirements, reduce production costs, and adapt to the deformation of the pipeline during use. It can also eliminate the tolerance superposition in the movement, so that the deflection and torsion of the propulsion mechanism 1 are within the controllable range, avoiding problems such as torsion, jamming, and sinking of the middle part and friction with the inner wall of the pipeline.

[0070] Preferably, the total length of the propulsion mechanism 1 is at least twice the diameter of the columnar mechanism 6 .

[0071] Improve stability during rotation, reduce vibration, and by extending the length, improve air tightness without increasing resistance. Ensuring twice the length helps avoid torsion and jamming during movement, as well as pipe friction caused by torsion and jamming.

[0072] 7 and 8 , an auxiliary device 8 is further included. The auxiliary device 8 has at least one curved structure in the forward direction, and the curved structure matches the curvature of the inner wall of the curved pipe 2 , and the overall shape is adapted to pass through the pipe 2 .

[0073] The auxiliary device 8 is provided with a rolling component for supporting against the inner wall of the pipe;

[0074] The auxiliary device 8 is spliced ​​and combined with the propulsion mechanism 1 end to end.

[0075] By combining the auxiliary device 8 with the propulsion mechanism 1, a longer mechanical component is formed to run in the pipe 2. By increasing the length, the torsion and jamming problems during the movement are reduced.

[0076] The auxiliary device 8 and the propulsion mechanism 1 are spliced ​​end to end, and have a plug-in structure;

[0077] Among the auxiliary device 8 and the propulsion mechanism 1, one of them has a strip-shaped plug and the other has a matching strip-shaped slot.

[0078] The strip-shaped plug-in structure enhances the limiting force and precision of the relative torsion between the auxiliary device 8 and the propulsion mechanism 1, thereby improving performance.

[0079] Among the auxiliary device 8 and the propulsion mechanism 1 , one of them has a strip-shaped plug 81 with its length direction pointing to the arc center of the curved structure, and the other has a matching strip-shaped slot 82 .

[0080] This design, using the plane of the curved structure as the horizontal perspective, reduces the relative vertical swing constraints of the auxiliary device 8 and the propulsion mechanism 1, effectively enhancing the adaptability to the vertical deformation of the pipeline 2. This ensures smooth operation even when the overall length is increased.

[0081] One step closer:

[0082] The activities of the auxiliary device 8 and the end-to-end splicing structure of the propulsion mechanism 1 are limited to:

[0083] Limit the relative movement of the auxiliary device 8 and the propulsion mechanism 1 to prevent separation;

[0084] Limit the relative rotation of the auxiliary device 8 and the propulsion mechanism 1 to avoid excessive twisting;

[0085] Reserve the margin for relative up and down swing and the margin for horizontal swing.

[0086] By increasing the length, the torsion and jamming problems during movement are reduced, and the adaptability to the vertical and horizontal deformation of the pipe 2 is effectively enhanced, ensuring smooth operation even when the overall length is increased.

[0087] The auxiliary device 8 adopts another propulsion mechanism 1, and the two propulsion mechanisms 1 are spliced ​​together end to end.

[0088] It not only reduces torsion and jamming during movement, but also enhances magnetic output and improves transmission power.

[0089] Specific application scenarios:

[0090] The pipe 2 to be adapted is provided with an air inlet and an air outlet.

[0091] During use, air is introduced into the air inlet, and the pipe 2 is a channel for the air flow;

[0092] Driven by the airflow, the airtight air pressure propulsion mechanism 1 moves along the pipe 2 toward the air outlet.

[0093] The inner wall of the pipe 2 to be adapted can be a circular tubular structure with a circular cross-section, such as a perfect circle or ellipse, or a polygonal tubular structure with a triangular or quadrilateral cross-section. In the case of a polygonal tubular structure, the edges are preferably joined by arcs. The airtight pneumatic propulsion mechanism 1 can be used in a variety of pipes.

[0094] The pipeline 2 can be an annular pipeline. Through the annular pipeline, gas can be accumulated, and high-pressure gas has a stronger buffering capacity and low-pressure gas has a stronger accumulation capacity.

[0095] The ring shape is not limited to a standard circular ring structure. In addition to the circular ring structure, it can also be a ring with an elliptical structure, or a ring formed by a combination of some straight lines and circular arcs.

[0096] The pipe 2 allows access to the valve structure through a connecting section outside of the pipe 2. The annular pipe 2 may not be closed by itself, but can be closed through other auxiliary components, so that the airtight air pressure propulsion mechanism 1 can be continuously pushed.

[0097] A valve 5 is provided on an annular pipe; the shape of the opening of the valve 5 in the conducting state is a shape that allows the airtight gas pressure propulsion mechanism 1 to pass through;

[0098] The airtight air pressure propulsion mechanism 1 can be an airtight air pressure propulsion mechanism 1 that is propelled by gas, and the edge of the airtight air pressure propulsion mechanism 1 is airtight with the inner wall of the pipe;

[0099] The valve 5 is arranged between the gas inlet and the gas outlet of the channel;

[0100] The valve 5 may be a one-way valve with a conducting direction from the gas outlet to the gas inlet.

[0101] After gas enters from the gas inlet, it pushes the airtight gas pressure propulsion mechanism 1 forward. The gas blocked between the gas inlet and the airtight gas pressure propulsion mechanism 1 is discharged through the gas outlet after the airtight gas pressure propulsion mechanism 1 jumps over (crosses) the gas outlet. In the whole process, the airtight gas pressure propulsion mechanism 1 is continuously pushed.

[0102] The propulsion mechanism 1 drives the magnetic device outside the pipeline to move, realizes the conversion of gas energy, and then drives the external equipment to work, such as rotation, power generation, etc.

[0103] The power for pushing open the valve can be at least one of inertia force, gravity, and magnetic force.

[0104] The outer edge of the roller b1 has an elastic surface.

[0105] The elastic surface of the outer edge of the roller b1 automatically completes the fitting when pressed against the inner wall of the pipe, and can adapt to irregularities caused by defects on the inner wall of the pipe.

[0106] The contact area between the outer edge of roller b1 and the inner wall of the pipe is greatly increased compared with the contact area of ​​roller b1 with a ball or a cylindrical outer edge, thereby greatly reducing the pressure generated on the inner wall of the pipe and protecting the inner wall of the pipe.

[0107] Furthermore, the width of the outer edge of the roller b1 is greater than one fifth of the radius of the roller b1.

[0108] The contact area of ​​the supporting part is further ensured.

[0109] The difference in angle between the axial direction of the roller b1 and the circular axial direction of the pipe 2 is less than 5 degrees. During the rotation of the roller b1 in the pipe 2, there is no need for turning, and there is no friction caused by turning.

[0110] The radius of the roller b1 is greater than one eighth of the width or diameter of the inner wall of the pipe.

[0111] During operation of the equipment, the roller b1 has a lower rotation speed. Although the weight is increased and the centrifugal force is increased, the bearing of the roller b1 is protected.

[0112] For equipment that is in working condition all year round, the stability is greatly improved.

[0113] The outer edge of the roller body of roller b1 is covered with a layer of elastic wear-resistant material. The elastic wear-resistant material layer enhances the wear resistance of the roller body of roller b1 and prolongs its service life.

[0114] The wheel body can be made of metal or other hard materials, which ensures both strength and slight elasticity.

[0115] The elastic wear-resistant material layer can be a rubber layer, polytetrafluoroethylene, etc. By adopting a rubber layer with good elasticity and strong wear resistance or polytetrafluoroethylene with strong corrosion resistance, the service life can be extended.

[0116] The thickness of the elastic wear-resistant material layer is greater than 0.2 mm and less than 1.5 mm.

[0117] Avoid operational deviations caused by excessive wear during long-term operation. If the elastic wear-resistant material layer is completely worn away after prolonged operation, the system will still operate relatively stably, albeit with some performance degradation. This leaves ample time for after-sales service.

[0118] Alternatively, the wheel body of the roller b1 may be made of plastic, preferably polytetrafluoroethylene, which has sufficient strength and slight elasticity.

[0119] Preferably, the propulsion mechanism 1 has at least one curved structure in the forward direction, and the curved structure matches the curvature of the inner wall of the pipe, thereby reducing the turning resistance and improving the airtightness.

[0120] For example, the pipeline 2 is a circular pipeline, and the propulsion mechanism 1 has a curved structure with an arc equivalent to the radius of the circle.

[0121] Reduce steering resistance, improve the bonding accuracy with the inner wall of the pipe, and enhance air tightness.

[0122] Preferably, the total stacked length of the columnar structures is at least 0.3 times the diameter.

[0123] Improve stability during rotation, reduce vibration, and by extending the length of the columnar structure, improve air tightness without increasing resistance.

[0124] Preferably, the total length of the columnar structure is at least 1.2 times the diameter.

[0125] Improve stability during rotation, reduce vibration, and improve airtightness by extending the length without increasing resistance.

[0126] At least two rollers b2 arranged in a front-to-rear manner are provided on the side of the propulsion mechanism 1 away from the center of the pipe to withstand the centrifugal force caused during the rotation process.

[0127] At least two rollers b2 arranged in front and back bear the main pressure of the propulsion mechanism 1. The pressure is evenly distributed by at least two rollers b2 arranged in front and back, which lowers the pressure, better protects the inner wall of the pipeline, and makes the operation more stable.

[0128] The other side of the propulsion mechanism 1 can use ball bearings.

[0129] The pressure on the other side of the propulsion mechanism 1 is relatively small, and the use of ball bearings can simplify the structure and reduce the weight.

[0130] Compared with the piston design, in order to reduce the energy consumed in the up and down direction conversion process, the idea of ​​reducing the weight of the piston as much as possible, this patent allows the propulsion mechanism 1 to have a higher mass (weight) and allows for a more complex structural setting, thereby improving performance.

[0131] 2 , the propulsion mechanism 1 is provided with at least one elastic ring 11 with an elastic force that expands outwards; the elastic ring 11 reduces the gap between the propulsion mechanism 1 and the inner wall of the pipe.

[0132] Furthermore, the columnar mechanism 6 in the propulsion mechanism 1 is provided with a groove, the elastic ring 11 is embedded in the groove, and the outer edge protrudes from the groove, and the elastic ring 11 is provided with an opening. The opening provides space conditions for elastic compression and expansion.

[0133] The axial direction of the elastic ring 11 is consistent with the forward direction of the columnar structure 6, and can also be appropriately tilted to improve the airtight effect.

[0134] The elastic ring 11 is preferably made of a metal ring, a Teflon ring, a metal-plastic composite ring, or other wear-resistant elastic material. The metal ring can be made of stable stainless steel or a shape-recoverable memory alloy, which offers excellent wear resistance. Using Teflon provides corrosion and moisture resistance for the elastic ring 11. Using a metal-plastic composite structure can effectively reduce costs.

[0135] 5 and 6 , the propulsion mechanism 1 is a magnet mechanism provided with a magnet 7 .

[0136] Through the magnet mechanism, magnetic connection is established with the magnetic device arranged outside the pipeline 2 to output signals or energy.

[0137] Magnets 7 are provided on at least two opposite sides of the magnet mechanism.

[0138] For example, the upper and lower sides, the left and right sides. The magnets 7 on both sides are convenient for magnetic force balance and increase of magnetic force.

[0139] In addition, the magnets 7 on both sides can generate forces in opposite directions on both sides with the magnetic device outside the pipe 2, so that the forces in two directions on the magnetic mechanism can offset each other, reducing pressure and friction.

[0140] Furthermore, magnets 7 are provided on two opposite sides of the magnet mechanism, as well as on the other side, that is, magnets 7 are provided on at least three sides.

[0141] Three sides, such as the upper and lower sides and the inner side of the curved shape.

[0142] The magnets 7 can be arranged separately on three sides, or can be arranged on three sides in an arc-shaped overall structure, so as to balance the magnetic force and increase the magnetic force.

[0143] Furthermore, magnets 7 are provided around the propulsion mechanism 1 , and the magnets 7 are provided on both the upper and lower sides and on the inner side of the curved shape;

[0144] At least one roller b2 is provided on the side of the propulsion mechanism 1 away from the center of the curved shape, between the front and rear parts, for abutting against the inner wall of the pipe;

[0145] The arrangement of the magnets 7 leaves room for the roller b2 to be installed.

[0146] This design not only ensures the installation of roller b2, but also saves magnet material. It is more suitable for use with external magnets that avoid the outer gas inlet and gas outlet.

[0147] Preferably, the curvature of the propulsion mechanism 1 fits the curvature of the inner wall of the pipe, thereby reducing the steering resistance and improving the airtightness.

[0148] Furthermore, at least two grooves are provided on the propulsion mechanism 1 , and at least two elastic rings 11 with openings are respectively embedded in the at least two grooves, with outer edges protruding from the grooves.

[0149] In order to make the elastic ring 11 have the elasticity to expand, an opening is provided, but the opening is not airtight. In order to solve the problem of airtightness, a method of staggering the opening angles of multiple elastic rings is adopted.

[0150] When the airflow flows through the at least two staggered openings, flow resistance is generated, thereby improving air tightness.

[0151] Both ends of the elastic ring 11 are respectively provided with butt joints C1 ; at least one of the two butt joints C1 is provided with a notch in its thickness.

[0152] The gap is provided in the thickness, rather than in the radial direction (height). No matter how tightly the two butt ends C1 are butted together, the gap can be avoided in the length direction (gas flow direction) of the airtight gas pressure propulsion mechanism.

[0153] In the above design, compared with the traditional piston ring, the elastic ring 11 has a larger rebound amplitude, a smaller extrusion force, and a larger allowable wear amplitude.

[0154] As a result, the patented device has less resistance, lower wear, lower requirements on the purity of the flowing gas, and lower requirements on the cleanliness and neatness of the inner wall of the pipeline compared to the piston and piston cylinder.

[0155] The tail portion 3 of the propulsion mechanism 1 is provided with at least one recess for collecting wind.

[0156] The depression collects and rebounds the airflow that impacts the depression, thereby forming reverse turbulence, increasing the resistance of the airflow passing through the side, and improving air tightness.

[0157] Furthermore, at least one edge of the recess is less than 2 mm from the edge of the propulsion mechanism, so that turbulence and airflow passing through the edge create resistance, thereby improving airtightness and thrust.

[0158] The depression is preferably greater than 5 cm in depth and greater than 5 cm in width to ensure turbulent flow quality.

[0159] The head of the propulsion mechanism 1 is provided with a protrusion 4 in the forward direction;

[0160] The height of the front end of the protrusion is not higher than one third of the height of the valve 5.

[0161] Therefore, when the airtight air pressure propulsion mechanism pushes open the door body of the valve 5, the protrusion first pushes one side of the free end of the door body, so that the airtight air pressure propulsion mechanism can push the door body open with less force, making the door opening smooth and reliable.

[0162] The above shows and describes the basic principles, main features, and advantages of the invention. Those skilled in the art should understand that the invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the invention. Various changes and improvements are possible without departing from the spirit and scope of the invention. Such changes and improvements are intended to fall within the scope of the claimed invention. The scope of the claimed invention is defined by the appended claims and their equivalents.

Claims

1. An airtight gas pressure propulsion mechanism, comprising a propulsion mechanism that allows the gas to generate a force in the pipeline, characterized in that: The propulsion mechanism is a propulsion mechanism that allows advancement in a curved pipe; the propulsion mechanism has at least one curved structure in the advancing direction, and the curved structure matches the curvature of the inner wall of the curved pipe; The propulsion mechanism further includes at least one columnar mechanism having a thickness for blocking airflow; The propulsion mechanism is provided with a rolling component for abutting against the inner wall of the pipe to play a supporting role; The propulsion mechanism is a magnet mechanism provided with a magnet; Through the magnet mechanism, magnetic coupling is performed with the magnetic device arranged outside the pipeline to transfer kinetic energy; A propulsion mechanism that generates a force with the gas in the pipeline is one of a propulsion mechanism that is driven forward by the gas pressure in the pipeline, or a propulsion mechanism that drives the gas to flow in the pipeline; At least three rollers arranged in a surrounding manner are respectively provided at the front and rear of the propulsion mechanism; The rollers are arranged in a circular manner, and the propulsion mechanism is suspended in the pipeline; The rolling direction of the roller is along the direction of the pipeline; The propulsion mechanism as a whole presents a curved shape adapted to travel through the pipeline.

2. The airtight gas pressure propulsion mechanism according to claim 1, characterized in that: The front part of the propulsion mechanism is provided with at least one columnar mechanism having thickness and used for blocking the airflow; The rear part of the propulsion mechanism is provided with at least one columnar mechanism having thickness and used for blocking the airflow; A magnet is arranged at the rear of the propulsion mechanism.

3. The airtight gas pressure propulsion mechanism according to claim 1, characterized in that: At least one roller for abutting against the inner wall of the pipeline is arranged at a position between the front and rear parts of the propulsion mechanism, on one side away from the center of the curved shape.

4. The airtight gas pressure propulsion mechanism according to claim 1, characterized in that: After being limited by the pipeline in the pipeline, at least one point in the front and rear parts of the propulsion mechanism, one of the at least three rollers arranged around it has a radial swing amplitude greater than 0.2mm, and the swing buoyancy of at least two other rollers is limited to a radial swing amplitude less than 0.1mm.

5. The airtight gas pressure propulsion mechanism according to claim 1, characterized in that: The total length of the propulsion mechanism is at least twice the diameter of the columnar mechanism.

6. The airtight gas pressure propulsion mechanism according to claim 1, characterized in that: It also includes an auxiliary device, which has at least one curved structure in the advancing direction, and the curved structure matches the curvature of the inner wall of the curved pipeline, and the whole device presents a shape suitable for passing through the pipeline; The auxiliary device is provided with a rolling component for supporting against the inner wall of the pipe; The auxiliary device is spliced ​​and combined with the propulsion mechanism end to end.

7. The airtight gas pressure propulsion mechanism according to claim 6, characterized in that: The auxiliary device and the propulsion mechanism are spliced ​​end to end, and have a plug-in structure; Auxiliary devices, propulsion mechanisms, one of which has a bar-shaped plug and the other has a matching bar-shaped slot; The strip-shaped plug-in structure is used to enhance the limiting force and accuracy of the relative torsion of the auxiliary device and the propulsion mechanism, thereby improving the performance.

8. The airtight gas pressure propulsion mechanism according to claim 7, characterized in that: Among the auxiliary device and the propulsion mechanism, one of them has a strip-shaped plug with its length direction pointing to the arc center of the curved structure, and the other has a matching strip-shaped slot.

9. The airtight gas pressure propulsion mechanism according to claim 6, characterized in that: The activities of the auxiliary devices and the head and tail joint structures of the propulsion mechanism are limited to: Limit the relative movement of auxiliary devices and propulsion mechanisms to avoid separation; Limit the relative rotation of auxiliary devices and propulsion mechanisms to avoid excessive twisting; Reserve the margin for relative up and down swing and reserve the margin for horizontal swing.

10. The airtight gas pressure propulsion mechanism according to claim 1, characterized in that: The rolling component is a roller, and the roller has an outer edge with an outwardly protruding arc surface structure; the arc surface structure of the outer edge fits with the arc surface of the inner wall of the pipe to be adapted.

11. The airtight gas pressure propulsion mechanism according to claim 1, characterized in that: The outer edge of the wheel body of the roller is covered with an elastic wear-resistant material layer; the wheel body is made of metal; The thickness of the elastic wear-resistant material layer is greater than 0.2 mm and less than 1.5 mm.

12. The airtight gas pressure propulsion mechanism according to claim 1, characterized in that: The width of the outer edge of the roller is greater than one fifth of the roller radius; The radius of the roller is greater than one eighth of the inner diameter of the pipe.

13. The airtight gas pressure propulsion mechanism according to claim 1, characterized in that: The total stacked length of the columnar structures is at least 0.3 times the diameter.

14. The airtight gas pressure propulsion mechanism according to claim 1, characterized in that: The total length of the columnar structure is at least 1.2 times the diameter.

15. The airtight gas pressure propulsion mechanism according to claim 1, characterized in that: At least two rollers arranged front and back are provided on one side of the propulsion mechanism away from the center of the pipe to withstand the centrifugal force caused during the rotation process.

16. The airtight gas pressure propulsion mechanism according to claim 1, characterized in that: The propulsion mechanism is provided with at least one elastic ring with elastic force that expands outwards; the gap between the propulsion mechanism and the inner wall of the pipeline is reduced by the elastic ring; a groove is provided on the columnar mechanism in the propulsion mechanism, the elastic ring is embedded in the groove, and the outer edge protrudes from the groove.

17. The airtight gas pressure propulsion mechanism according to claim 1, characterized in that: The propulsion mechanism is a magnet mechanism provided with a magnet; The magnet mechanism is provided with magnets on at least two opposite sides, and the magnets on both sides are convenient for balancing and increasing the magnetic force; The magnets on both sides and the magnetic device outside the pipe generate forces in opposite directions on both sides; The forces in two directions acting on the magnet mechanism can offset each other, reducing pressure and friction.

18. The airtight gas pressure propulsion mechanism according to claim 17, characterized in that: Magnets are arranged on two opposite sides of the magnet mechanism and on another side, that is, magnets are arranged on at least three sides.

19. The airtight gas pressure propulsion mechanism according to claim 1, characterized in that: A magnet is arranged around the propulsion mechanism, and the magnet is arranged on the upper and lower sides and the inner side of the curved shape; At least one roller for abutting against the inner wall of the pipe is provided at a position between the front and rear parts of the propulsion mechanism on one side away from the center of the curved shape; The magnets are arranged to provide a mounting position for the roller.

20. The airtight gas pressure propulsion mechanism according to claim 1, characterized in that: The tail of the propulsion mechanism is provided with at least one depression for collecting wind; at least one edge of the depression is less than 2 mm away from the edge of the propulsion mechanism; the depression is a depression with a depth greater than 5 cm and a width greater than 5 cm.

21. The airtight gas pressure propulsion mechanism according to any one of claims 1 to 21, characterized in that: The head of the propulsion mechanism is provided with a protrusion in the advancing direction; The height of the front end of the protrusion is no higher than one third of the height of the valve.

22. The airtight gas pressure propulsion mechanism according to any one of claims 6 to 9, characterized in that: The auxiliary device adopts another propulsion mechanism, and the two propulsion mechanisms are spliced ​​together end to end.

23. The airtight gas pressure propulsion mechanism according to any one of claims 1 to 21, characterized in that: Specific application scenarios: The pipeline to be adapted is provided with an air inlet and an air outlet. During use, air is introduced into the air inlet, and the duct is a channel for the air flow; Under the push of the airflow, the airtight air pressure propulsion mechanism moves along the pipeline toward the air outlet; The pipeline adopts a circular pipeline; The pipeline is allowed to access the valve structure through a connection section outside itself; A valve is arranged on an annular pipe; the shape of the opening of the valve in the on state is a shape that allows the airtight gas pressure propulsion mechanism to pass through; An airtight gas pressure propulsion mechanism is adopted, which is advanced by gas propulsion, and the edge of the airtight gas pressure propulsion mechanism is airtight with the inner wall of the pipeline; The valve is arranged at a position between the gas inlet and the gas outlet of the channel; One-way valve with the valve conducting direction from the gas outlet to the gas inlet; After the gas enters from the gas inlet, it pushes the airtight gas pressure propulsion mechanism forward. The gas blocked between the gas inlet and the airtight gas pressure propulsion mechanism is discharged through the gas outlet after the airtight gas pressure propulsion mechanism jumps over the gas outlet. Continuous propulsion of the airtight gas pressure propulsion mechanism is achieved in the whole process.

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