KR20000001734A - Hydraulic pressure pump and apparatus for maintaining constant velocity - Google Patents

Abstract

PURPOSE: A pump used as a compressing pump and a motor power pump for improving precision, pumping force, abrasion resistance, and life span and saving manufacturing period and cost for improving productivity is provided. CONSTITUTION: A pump comprises:a housing containing a fixed inhalant pipe and a venting pipe on the outer face, an inhalant recess connected thoroughly to the inhalant pipe, and a venting recess to the venting pipe; a cylinder typed rotating cylinder containing a second inner space inside, a couple of piston inserting apertures with the opposite direction on the wall of the cylinder toward a radius direction, and an inscribed gear on the inner circumferential surface of a boss unit arranged in an end unit on a shaft direction; a circumscribed gear rotating by an external force and formed on one side for butting to the inscribed gear of the rotating cylinder and rotating the rotating cylinder according to the rotation of the inscribed gear; and an eccentric wheel formed on the other side for fluid to be inhaled and vented through the inhalant pipe and the venting pipe by alternating motion of the piston.

Description

Hydraulic pump and constant speed maintenance device

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pump using fluid pressure, and in particular, a pump configured to improve the precision of operation and the wear resistance of a component, and a constant speed maintaining device which maintains a constant operating speed at all times regardless of the applied force appratus for maintaining costant velocity).

In general, pressure pumps are difficult to provide high efficiency, wear resistance, and precision at the same time, so there is a drawback that cannot be used as a vacuum pump for gas compression or high vacuum, except for liquid transfer.

In addition, when rotating the rotary cylinder or the rotary piston, the central axis is not fixed on both sides, but fixed only on one side, so when pumping, the load is not stable and the load is not stable. Due to this, the production takes a long time and the precision is not only degraded, there are many problems such as excessive production costs.

The present invention was created to solve the problems inherent in the pump according to the prior art as described above, the main object of the present invention is to improve the structure to improve the precision and pumping force and wear resistance and life of the parts The present invention provides a pump that can be used as a compression pump and a prime mover pump while significantly reducing manufacturing costs and improving productivity.

Another object of the present invention is to maintain a constant operating speed irrespective of the force applied to the constant velocity maintaining device using a fluid pressure to allow several people to evacuate at the same time when a disaster such as fire in a high-rise building In providing.

Still another object of the present invention is to provide a constant velocity maintaining apparatus using a friction material.

1 is an exploded perspective view showing the structure of a hydraulic pump according to the present invention.

2 is a cross-sectional view showing a hydraulic pump assembled state of FIG.

3A to 3F are views for explaining the sequential operation of the hydraulic pump.

Figure 4 is a perspective view showing the structure of the constant velocity maintaining device using a fluid pressure according to another embodiment of the present invention.

Figure 5 is a side cross-sectional view of the constant velocity holding device of FIG.

Figure 6 is a side cross-sectional view showing the structure of the constant velocity maintaining apparatus using a fluid pressure according to another embodiment of the present invention.

Figure 7 is a side cross-sectional view showing the structure of the constant velocity holding device using a friction material according to another embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

10: pump 12: suction line

14: outlet line 16: intake recess

18: exhaust recess 20: housing

22: piston insertion hole 24: boss

26: internal gear 28: rotating cylinder

30: eccentric ring engaging hole 32: piston

34: crankshaft 36: external gear

38: eccentric ring 40: first shaft ball

42: second shaft hole 44: cover plate

46: ball bearing 48: roller bearing

50: constant velocity holding device 52: base plate

54: spring 56: support plate

58: housing 60: first recess

62: second recess 64: connecting passage

66: rotating cylinder 68: flow control piece

70: crankshaft 72: reel for winding

74: bearing 76: support bracket

100: constant velocity holding device 102: housing

104: rotary cylinder 106: first recess

108: second recess 110: pipe for first connection

112: pipe for second connection 114: working piston

116: opening 118: spring

120: vent 122: piston ring

150: constant velocity holding device 152: base plate

154: spring 156: support plate

158: housing 160: rotating body

162: friction material 164: powder friction material

166: crankshaft 168: rod member

According to one aspect of the invention, a pump is provided: the pump is in communication with the suction pipe and the discharge pipe, respectively, while the suction pipe and the discharge pipe are fixed on the outer circumferential surface thereof and are disposed opposite to each other on an inner surface thereof providing a first inner space. A housing in which a suction recess and a discharge recess are formed; The boss is inserted into the first inner space of the housing in a rotatable manner to provide a second inner space therein, and a pair of opposing piston insertion holes are formed in the wall portion in a radial direction and provided at one end in the axial direction. A cylindrical rotating cylinder having an internal gear formed on an inner circumferential surface of the part; A piston inserted in the piston insertion hole of the rotating cylinder in a reciprocating manner and having an eccentric ring coupling hole formed in a radial direction; And an external gear which is rotated by external power and engaged with the internal gear of the rotating cylinder and rotates the rotating cylinder according to the rotation thereof, and is inserted into an eccentric ring coupling hole of the piston and the piston according to the eccentric rotation thereof. And a crank shaft having an eccentric ring formed at the other side thereof so that the fluid can be sucked and discharged through the suction pipe and the discharge pipe by reciprocating.

According to another aspect of the invention, the pump, the first bearing is installed on the inner surface of the housing to support the rotation of the rotating cylinder; And a second bearing installed in the eccentric ring coupling hole to support rotation of the eccentric wheel.

According to another aspect of the present invention, the pump further comprises one or more cover plate is formed in the housing while the shaft hole through which the crankshaft penetrates.

According to another aspect of the invention, one end of the housing is closed, the shaft hole is formed in the one end is closed.

According to another aspect of the invention, the shaft hole is formed in a position eccentric from the center.

According to another aspect of the present invention, two or more pairs of opposed piston insertion holes are formed in a radial direction in the wall portion of the rotating cylinder, and a corresponding number of eccentric rings are formed in the crankshaft.

According to another aspect of the invention, the piston insertion hole and the piston has a polygonal cross-sectional shape.

According to another aspect of the present invention, the tooth ratio of the internal gear and the external gear is 2: 1.

According to another aspect of the present invention, there is provided a constant velocity maintaining apparatus using a fluid pressure suitable for use for lifesaving in the event of a fire in a high rise building, the apparatus comprising: a base plate; A plurality of elastic members having one end fixed to the base plate; A support plate fixed to the other end of the plurality of elastic members; A housing having a first passage and a second recess and a connection passage communicating the first recess and the second recess, the first recess and the second recess being opposed to each other on an inner surface fixed to the support plate and providing a first inner space; The boss is inserted into the first inner space of the housing in a rotatable manner to provide a second inner space therein, and a pair of opposing piston insertion holes are formed in the wall portion in a radial direction and provided at one end in the axial direction. A cylindrical rotating cylinder having an internal gear formed on an inner circumferential surface of the part; A piston inserted in the piston insertion hole of the rotating cylinder in a reciprocating manner and having an eccentric ring coupling hole formed in a radial direction; One end portion is extended to the outside of the housing and the other end is supported by the housing and the external gear which is engaged on the internal gear of the rotating cylinder to rotate the rotating cylinder according to the rotation is formed on one side and the eccentric ring coupling of the piston A crank shaft inserted into a ball and having an eccentric wheel formed at the other side to flow fluid between the first recess and the second recess through the connecting passage by reciprocating the piston according to the eccentric rotation thereof; A winding reel fixed to the one end of the crankshaft outside the housing; And one end is fixed to the base plate and the other end penetrates through the support plate and is positioned in the connection passage of the housing so that the load acting on the winding reel is changed so that the housing is moved downward so that the cross-sectional area of the connection passage is lowered. It is characterized in that it comprises a; and the flow control piece to thereby apply a resistance to the fluid flow.

According to another aspect of the present invention, there is provided a constant velocity maintaining apparatus using a fluid pressure suitable for use for lifesaving in the event of a fire or the like in a high rise building, the apparatus having an inner surface for providing a first internal space. A housing having a first recess and a second recess disposed to face each other and a connecting passage communicating the first recess and the second recess; It is fitted in a rotatable manner in the first inner space of the housing and provides a second inner space therein, and a pair of piston insertion holes opposed to each other in the wall portion is formed in the radial direction and at one end in the axial direction. A cylindrical rotating cylinder having an internal gear formed on an inner circumferential surface of the boss portion provided; A piston inserted in the piston insertion hole of the rotating cylinder in a reciprocating manner and having an eccentric ring coupling hole formed in a radial direction; One end portion is extended to the outside of the housing and the other end is supported by the housing and the external gear which is engaged on the internal gear of the rotating cylinder to rotate the rotating cylinder according to the rotation is formed on one side and the eccentric ring coupling of the piston A crank shaft inserted into a ball and having an eccentric wheel formed at the other side to flow fluid between the first recess and the second recess through the connecting passage by reciprocating the piston according to the eccentric rotation thereof; A winding reel fixed to the one end of the crankshaft outside the housing; And flow control means for applying resistance to the fluid flow as the load acting on the winding reel is changed by being located in the connection passage of the housing.

According to another aspect of the invention, the flow control means, the first connection pipe is formed with a ventilation hole at one end while the other end is connected to the first recess; An actuating piston disposed in the other end of the first connecting pipe, one end of which is opened, the other end of which is closed, and an opening formed on the wall thereof; A second connecting pipe having one end connected in a manner in communication with the first connecting pipe at a portion proximate the other end of the first connecting pipe and the other end connected to the second recess; And an elastic member configured to press the working piston in a direction in which the opening portion formed in the working piston communicates with the second connection pipe.

According to another aspect of the present invention, there is provided a constant velocity maintaining apparatus using a friction material suitable for use for lifesaving in the event of a fire or the like in a high rise building, the apparatus comprising: a base plate; A plurality of elastic members having one end fixed to the base plate; A support plate fixed to the other end of the plurality of elastic members; A housing fixed to the support plate and providing an inner space of a cylindrical cross section; A rotating body fitted to the inner space of the housing in a rotatable manner; A crank shaft having one end fixed to the rotating body and the other end extending outward of the housing; A winding reel fixed to the one end of the crankshaft outside the housing; A rod member having one end fixed to the base plate and the other end penetrating through the support plate and positioned on a portion of an inner surface of the housing; And a load fixed to the other end of the rod member and acting on the winding reel is changed to frictionally contact the outer surface of the rotating body as the housing moves downward, thereby maintaining a constant rotation speed of the crankshaft. And a friction material.

According to another aspect of the invention, the powder friction material is also attached to the inner surface of the housing and the outer surface of the rotating body.

According to the above characteristics of the present invention, the structure of the pump is improved to improve the precision and pumping force and the wear resistance and life of the parts, it is possible to greatly reduce the production time and manufacturing cost, thereby improving the productivity and compression pump and prime mover pump It can be used as a. In addition, since the crankshaft always maintains a constant rotational speed regardless of the acting force, when a disaster such as a fire occurs in a high-rise building, several people can safely evacuate at the same time.

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the present invention, the same reference numerals will be used for the same parts throughout the drawings.

1 shows an exploded perspective view showing the structure of a pump according to the invention; 2 is a cross-sectional view showing the assembled state of the pump of FIG. 1; 3A to 3F are diagrams for explaining the sequential operation of the pump.

The pump 10 according to the invention comprises a housing 20, a rotating cylinder 28, a piston 32 and a crankshaft 34.

While the housing 20 has a cylindrical shape, one end thereof is closed and the other end thereof is opened, and a first internal space is provided inside the housing 20. The suction pipe 12 and the discharge pipe 14 are fixed to the axial middle portion of the outer surface of the housing 20 in a manner opposite to each other, and the suction recess 16 in the axial middle portion of the inner surface of the housing 20. And a discharge recess 18 is formed in communication with the suction pipe 12 and the discharge pipe 14, respectively. A first shaft hole 40 is formed at a position at which one end of the housing 20 is eccentric from the center of the housing 20, and the other end of the housing 20 is closed by the cover plate 44. . A second shaft hole 42 is formed in the cover plate 44 at a position eccentric from the center of the housing 20.

The rotating cylinder 28 takes the shape of a cylinder while its both ends are open. The rotating cylinder 28 is fitted in a rotatable manner to the first inner space of the housing 20 while the second inner space is provided therein. The boss part 24 is provided in the one end part of the rotating cylinder 28, and the internal gear 26 is formed in the boss part 24. As shown in FIG. In the wall portion of the rotating cylinder 28, a pair of opposed piston insertion holes 22 are formed in the radial direction. A pair of ball bearings 46 are provided between the inner surfaces of both ends of the housing 20 and the inner surfaces of both ends of the rotating cylinder 28 to support rotation of the rotating cylinder 28.

The piston 32 is inserted into the piston insertion hole 22 of the rotating cylinder 28 in a reciprocating manner, and an eccentric ring coupling hole 30 is formed in the middle portion of the piston 32 in the radial direction.

The crankshaft 34 is inserted into the second inner space of the rotating cylinder 28. One end of the crankshaft 34 extends to the outside through the first shaft hole 40 formed in the housing 20, and the other end of the crankshaft 34 is formed on the cover plate 44. It is supported by the part of the cover plate 44 which fits in the shaft hole 42 and provides the said 2nd shaft hole. Since one end of the crankshaft 34 extending outward is connected to a driving means such as a motor, the crankshaft 34 is rotationally driven by the driving means. In the second inner space, the external gear 36 is integrally fixed to one side of the crankshaft 34 and the eccentric wheel 38 is eccentrically and integrally fixed to the other side. The external gear 36 meshes with the internal gear 26 formed in the boss portion 24 of the rotary cylinder 28, and the eccentric wheel 38 is an eccentric ring coupling hole formed in the piston 32. 30 is fitted. In a preferred embodiment of the present invention, the tooth ratio of the internal gear 26 and the external gear 36 is 2: 1. The roller bearing 48 is installed in the eccentric wheel coupling hole 30 into which the eccentric wheel 38 is fitted to support rotation of the eccentric wheel 38.

Therefore, when the crankshaft 34 is rotated by a driving means such as a motor, the external gear 36 fixed to the crankshaft 34 is integrally rotated, and the rotating cylinder 28 with respect to the external gear 36 is rotated. The rotating cylinder 28 is rotated by the engagement of the internal gear 26. In addition, as the eccentric wheel 38 fixed to the crankshaft 34 rotates, the piston 32 reciprocates in the up and down direction inside the piston insertion hole 22. Accordingly, the fluid flowing into the suction recess 16 through the suction pipe 12 is passed through the discharge recess 18 according to the rotation of the rotary cylinder 28 and the linear reciprocation of the piston 32. It is possible to discharge through the discharge pipe (14).

Of course, two or more pairs of opposed piston insertion holes 22 may be formed in the wall portion of the rotary cylinder 28 in the radial direction, and a corresponding number of eccentric rings 38 are formed in the crankshaft 34. Can be. In addition, it will be appreciated by those skilled in the art that the piston insertion hole 22 and the piston 32 may take a polygonal cross-sectional shape.

Hereinafter, the operation of the pump according to the present invention constructed as described above will be described in detail with reference to FIGS. 3A to 3F.

Since the tooth ratio of the internal gear 26 of the rotary cylinder 28 and the external gear 36 of the crankshaft 34 is 2: 1, the eccentric wheel 38 of the crankshaft 34 and the rotary cylinder 28, i.e., The piston 32 fitted into the piston insertion hole 22 of the rotating cylinder 28 is rotated at different angular speeds. Therefore, when the crankshaft 34 rotates 360 °, the rotating cylinder 28 and the piston 32 fitted thereto are rotated by 180 °. At this time, since the center of the eccentric ring 38 of the crankshaft 34 always moves along the centerline of the piston 32, the eccentric ring 38 moves the piston 32 in the longitudinal direction of the piston insertion hole 22. Along the reciprocating line. Volume change occurs continuously in the piston insertion hole 22 as the reciprocating linear movement of the piston 32 occurs, and suction and discharge through the suction pipe 12 and the discharge pipe 14 are caused by the volume change of the piston 32. It will be done every 180 ° rotation.

That is, in the position shown in Fig. 3A, the piston 32 is a housing provided between the suction recess 16 and the discharge recess 18 in a state where one end thereof is moved to one end of the piston insertion hole 22. It is kept in contact with the wall surface of 20. At this time, the fluid is filled between the other end of the piston 32 and the other end of the piston insertion hole 22.

Then, when the rotating cylinder 28 is rotated counterclockwise to the position shown in Fig. 3B, the piston 32 is filled in the piston insertion hole 22 while being moved toward the other end of the piston insertion hole 22. The fluid starts to be discharged through the discharge pipe 14 by applying pressure to the fluid in the discharge recess 18 while pushing out the fluid. At this time, on the other side, as the piston 32 is spaced apart from the one end of the piston insertion hole 22, the pressure in the suction recess 18 is lowered to suck the fluid through the suction pipe 12.

The suction and discharge action of the piston 32 as described above continues continuously in FIGS. 3C and 3D, and the suction and discharge action of the piston 32 is momentarily stopped in FIG. 3E. In FIG. 3E the piston 32 is in a position rotated 180 ° from its original position, and the suction and discharge action of the piston 32 is resumed in FIG. 3F. As the crankshaft 34 rotates continuously in accordance with the operation of the motor, the suction and discharge action of the pump is continuously performed.

Accordingly, as the piston 32 is linearly reciprocated in accordance with the rotation of the eccentric wheel 38 according to the rotation of the crankshaft 34, the space of the suction recess 16 gradually increases as shown in FIGS. 3A to 3E. As a result, the suction and discharge of the pump are simultaneously achieved as the space of the discharge recess 18 is gradually increased.

Therefore, the pump 10 according to the present invention can be used not only as a liquid transfer pump or a metering pump, but also as an air compression pump and a vacuum pump, and when a pressure (water pressure or air pressure) is applied to the pump inlet, the crankshaft 34 ) Becomes a drive shaft, so it can be used as a pump for generating power that transmits force to the outside.

4, there is shown a perspective view showing the structure of the constant velocity maintaining apparatus using the fluid pressure according to another embodiment of the present invention; Figure 5 shows a side cross-sectional view of the constant velocity holding device of FIG.

The constant velocity maintaining apparatus 50 using the fluid pressure according to the present embodiment of the present invention includes a base plate 52, and fixed on the base plate 52 in such a manner that one end of the plurality of springs 54 is spaced apart from each other. do. The support plate 56 is fixed to the other end of the plurality of springs 54, and the housing 58 is fixed to the support plate 56. The inner space of the housing 58 is provided, and the first recess 60 and the second recess 62 are formed in the axially middle portion of the inner surface of the housing 58 so as to face each other. A connecting passage 64 is also formed in the housing 58, which connects the first recess 60 and the second recess 62 to each other. One end of the flow regulating piece 68 is fixed to the base plate 52, and the other end of the flow regulating piece 68 penetrates through the support plate 56 in the connection passage 64 of the housing 58. Is located. The suction pipe and the discharge pipe are not formed in the housing 58 according to the present embodiment. In the inner space of the housing 58, a rotating cylinder 66 having a cylindrical shape is fitted in a rotatable manner. Since the internal structure of the housing 58 and the rotating cylinder 66 except for the above matters is the same as that of the first embodiment, detailed illustration and description thereof will be omitted in the present embodiment.

In this embodiment, the winding reel 72 is fixed to one end of the crankshaft 70 extending out of the housing 58, the ladder can be wound on the winding reel 72, for example. Bearings 74 are disposed on the crankshaft 70 at both sides of the winding reel 72 to support rotation of the crankshaft 70. The bearing 74 is mounted on the support bracket 76.

When the load acting on the crankshaft 70 is changed, the load acting on the housing 58 is changed and thus the spring 54 supporting the support plate 56 is tensioned or compressed. According to the tension or compression of the spring 54, the housing 58 is moved in the vertical direction, and the degree to which the flow control piece 68 blocks the connection passage 64 is changed to narrow the cross-sectional area of the connection passage. Widened. That is, when one weight is loaded on the crankshaft 70, the fluid flow between the first recess 60 and the second recess 62 is smooth as the spring 54 is tensioned. When the weight of ten people is loaded on the crankshaft 70, for example, the spring 54 is compressed and the connection passage 64 is narrowed, thereby applying resistance to the fluid flow, thereby suppressing rapid rotation of the crankshaft 70.

Therefore, the constant velocity maintaining apparatus using the fluid pressure according to the present embodiment is suitable to be used for allowing several people to evacuate simultaneously in the event of a disaster such as a fire in a high-rise building.

Referring to Figure 6, there is shown a side cross-sectional view showing the structure of the constant velocity maintaining apparatus using a fluid pressure according to another embodiment of the present invention.

The constant velocity maintaining apparatus 100 using the fluid pressure according to the present exemplary embodiment includes a housing 102, and the first recess 106 and the second recess 108 are disposed in an axial middle portion of the inner surface of the housing 102. ) Are formed in a manner opposite to each other. The suction pipe and the discharge pipe are not formed in the housing 102 according to the present embodiment. An inner space is formed in the housing 102, and a rotating cylinder 104 having a cylindrical shape is fitted into the inner space of the housing 102 in a rotatable manner. Since the internal structure of the housing 102 and the rotating cylinder 104 except for the above matters is the same as that of the first embodiment, detailed illustration and description thereof will be omitted in the present embodiment.

One end of the first connecting pipe 110 is connected to the first recess 106 of the housing 102, and the other end of the first connecting pipe 110 is closed. A vent hole 120 is formed at the other end of the first connection pipe 110 that is closed, and a stopper protrusion is formed on the inner surface of the first connection pipe 110 at a point spaced apart from the other end by a predetermined distance. 124 is formed. An actuation piston 114 is received between the stopper protrusion 124 and the other end in a reciprocating manner. The actuating piston 114 has a generally cylindrical shape, and one end spaced from the other end of the first connecting pipe 110 is open and the other end close to the other end of the first connecting pipe 110. Wealth is closed. One opening 116 is formed on the cylindrical wall surface of the actuating piston 114, and the piston ring 122 is fitted to the outer circumferential surface of the actuating piston 114. One end of the spring 118 is fixed to the bottom surface of the other end of the first connecting pipe 110, and the other end of the spring 118 is fixed to the working piston 114. One end of the second connection pipe 112 is connected to a portion of the first connection pipe 110 that communicates with the inside of the first connection pipe 110. The other end of the second connecting pipe 112 is connected to the second recess 108. The spring 118 presses the working piston 114 in the direction in which the opening 116 of the working piston 114 and the second connecting pipe 112 communicate with each other.

Therefore, the fluid flows in the first recess 106 and the second recess 108 in a state where the opening 116 of the actuating piston 114 and the second connecting pipe 112 communicate with each other. This is done smoothly. As the force acting on the crankshaft increases, the pressure of the fluid flowing inside the first connecting pipe 110 increases, so that the actuating piston 114 overcomes the pressing force of the spring 118 and the first connection. It is moved toward the other end of the dragon pipe 110. Accordingly, the opening 116 of the actuating piston 114 and the second connecting pipe 112 are shifted from each other by a certain degree, thereby adding resistance to the fluid flow and suppressing rapid rotation of the crankshaft.

Therefore, the constant velocity maintaining apparatus using the fluid pressure according to the present embodiment is suitable to be used for allowing several people to evacuate simultaneously in the event of a disaster such as a fire in a high-rise building.

Referring to Figure 7, there is shown a side cross-sectional view showing the structure of the constant velocity holding device using a friction material according to another embodiment of the present invention.

The constant velocity maintaining apparatus 150 using the friction material according to this embodiment of the present invention includes a base plate 152, and one end of the plurality of springs 154 is fixed on the base plate 152 so as to be spaced apart from each other. . The support plate 156 is fixed to the other end of the plurality of springs 154, and the housing 158 is fixed to the support plate 156. The housing 158 is provided with an inner space having a cylindrical cross section, and the rotating body 160 is accommodated in a rotatable manner. One end of the crankshaft 166 is fixed to the central portion of the rotating body 160, and the other end of the crankshaft 166 extends outside the housing 158. One end of the rod member 168 is fixed to the base plate 152, and the other end of the rod member 168 penetrates through the support plate 156 and is positioned on a portion of the inner surface of the housing 158. The friction material 162 is fixed to the other end of the rod member 158. A powder friction material 164 is attached to an inner surface of the housing 158 and an outer surface of the rotating body 160.

Therefore, when the force acting on the crankshaft 166 is increased, the housing 158 is moved downwards, and thus the outer surface of the rotating body 160 is forcibly frictionally contacted with the friction material 162 so that the crankshaft 166 Quick turn is suppressed.

According to the configuration as described above of the present invention, the structure of the pump is improved to improve the precision and pumping force and the wear resistance and life of the parts, it is possible to significantly reduce the production time and manufacturing cost, thereby improving the productivity of the compression pump and It can be used as a prime mover pump. In addition, since the crankshaft always maintains a constant rotational speed regardless of the acting force, when a disaster such as a fire occurs in a high-rise building, several people can safely evacuate at the same time.

While the present invention has been illustrated and described with reference to certain preferred embodiments, the invention is not limited thereto but may vary without departing from the spirit or scope of the invention as set forth in the claims below. It will be readily apparent to those skilled in the art that such modifications and variations can be made in the art.

Claims (23)

In the pump, A housing in which a suction pipe and a discharge pipe are fixed on an outer circumferential surface thereof, and a suction recess and a discharge recess are formed on the inner surface of the first inner space to face each other and communicate with the suction pipe and the discharge pipe, respectively; The boss is inserted into the first inner space of the housing in a rotatable manner to provide a second inner space therein, and a pair of opposing piston insertion holes are formed in the wall portion in a radial direction and provided at one end in the axial direction. A cylindrical rotating cylinder having an internal gear formed on an inner circumferential surface of the part; A piston inserted in the piston insertion hole of the rotating cylinder in a reciprocating manner and having an eccentric ring coupling hole formed in a radial direction; And An external gear, which is rotated by external power and engaged with the internal gear of the rotating cylinder and rotates the rotating cylinder according to the rotation thereof, is formed at one side and inserted into an eccentric ring coupling hole of the piston to move the piston according to its eccentric rotation. And a crank shaft having an eccentric ring formed at the other side thereof so that fluid can be sucked and discharged through the suction pipe and the discharge pipe by reciprocating. The method of claim 1, A first bearing installed on an inner surface of the housing to support rotation of the rotating cylinder; And a second bearing installed in the eccentric ring coupling hole to support rotation of the eccentric wheel. The method of claim 1, And at least one cover plate mounted on the housing and having a shaft hole through which the crank shaft penetrates. The method according to claim 1 or 3, One end of the housing is closed, the pump characterized in that the shaft hole is formed in the closed one end. The method of claim 4, wherein And the shaft hole is formed at a position eccentric from the center. The method of claim 1, At least two pairs of opposed piston insertion holes are formed in the wall portion of the rotating cylinder in a radial direction, and the crankshaft is provided with a corresponding number of eccentric wheels. The method of claim 1, And the piston insertion hole and the piston take a polygonal cross-sectional shape. The method of claim 1, And a tooth ratio of the internal gear and the external gear is 2: 1. In the constant velocity maintenance device using a fluid pressure suitable for lifesaving in the event of a fire in a high-rise building, Base plate; A plurality of elastic members having one end fixed to the base plate; A support plate fixed to the other end of the plurality of elastic members; A housing having a first passage and a second recess and a connection passage communicating the first recess and the second recess, the first recess and the second recess being opposed to each other on an inner surface fixed to the support plate and providing a first inner space; The boss is inserted into the first inner space of the housing in a rotatable manner to provide a second inner space therein, and a pair of opposing piston insertion holes are formed in the wall portion in a radial direction and provided at one end in the axial direction. A cylindrical rotating cylinder having an internal gear formed on an inner circumferential surface of the part; A piston inserted in the piston insertion hole of the rotating cylinder in a reciprocating manner and having an eccentric ring coupling hole formed in a radial direction; One end portion is extended to the outside of the housing and the other end is supported by the housing and the external gear which is engaged on the internal gear of the rotating cylinder to rotate the rotating cylinder according to the rotation is formed on one side and the eccentric ring coupling of the piston A crank shaft inserted into a ball and having an eccentric wheel formed at the other side to flow fluid between the first recess and the second recess through the connecting passage by reciprocating the piston according to the eccentric rotation thereof; A winding reel fixed to the one end of the crankshaft outside the housing; And One end portion is fixed to the base plate and the other end portion penetrates the support plate and is positioned in the connection passage of the housing so that the load acting on the winding reel is changed so that the cross-sectional area of the connection passage is changed as the housing moves downward. And a flow adjusting piece which is narrowed and thus applies resistance to the fluid flow. The method of claim 9, A first bearing installed on an inner surface of the housing to support rotation of the rotating cylinder; And a second bearing installed in the eccentric ring coupling hole to support the rotation of the eccentric wheel. The method of claim 9, And at least one cover plate which is mounted to the housing and has a shaft hole through which the crankshaft penetrates. The method of claim 9 or 11, One end of the housing is closed, the constant velocity maintaining apparatus using a fluid pressure, characterized in that the shaft hole is formed in the one end is closed. The method of claim 12, The constant velocity holding device using a fluid pressure, characterized in that the shaft hole is formed in a position eccentric from the center. The method of claim 9, And the piston insertion hole and the piston have a polygonal cross-sectional shape. The method of claim 9, Equivalent speed maintenance device using a fluid pressure, characterized in that the tooth ratio of the internal gear and the external gear is 2: 1. In the constant velocity maintenance device using a fluid pressure suitable for lifesaving in the event of a fire in a high-rise building, A housing having a first passage and a second recess disposed opposite to each other on an inner surface of the first inner space and a connection passage communicating the first recess and the second recess; It is fitted in a rotatable manner in the first inner space of the housing and provides a second inner space therein, and a pair of piston insertion holes opposed to each other in the wall portion is formed in the radial direction and at one end in the axial direction. A cylindrical rotating cylinder having an internal gear formed on an inner circumferential surface of the boss portion provided; A piston inserted in the piston insertion hole of the rotating cylinder in a reciprocating manner and having an eccentric ring coupling hole formed in a radial direction; One end portion is extended to the outside of the housing and the other end is supported by the housing and the external gear which is engaged on the internal gear of the rotating cylinder to rotate the rotating cylinder according to the rotation is formed on one side and the eccentric ring coupling of the piston A crank shaft inserted into a ball and having an eccentric wheel formed at the other side to flow fluid between the first recess and the second recess through the connecting passage by reciprocating the piston according to the eccentric rotation thereof; A winding reel fixed to the one end of the crankshaft outside the housing; And And a flow regulating means for applying a resistance to the fluid flow as the load acting on the winding reel is changed by being located in the connection passage of the housing. The method of claim 16, The flow control means, the first connection pipe is connected to one end of the first recess while the other end is formed with a vent hole; An actuating piston disposed in the other end of the first connecting pipe, one end of which is opened, the other end of which is closed, and an opening formed on the wall thereof; A second connecting pipe having one end connected in a manner in communication with the first connecting pipe at a portion proximate the other end of the first connecting pipe and the other end connected to the second recess; And an elastic member for pressing the actuating piston in a direction in which the opening portion formed in the actuating piston and the second connecting pipe communicate with each other. The method of claim 16, A first bearing installed on an inner surface of the housing to support rotation of the rotating cylinder; And a second bearing installed in the eccentric ring coupling hole to support the rotation of the eccentric wheel. The method of claim 16, And at least one cover plate which is mounted to the housing and has a shaft hole through which the crankshaft penetrates. The method of claim 16 or 19, One end of the housing is closed, the constant velocity maintaining apparatus using a fluid pressure, characterized in that the shaft hole is formed in the one end is closed. The method of claim 20, The constant velocity holding device using a fluid pressure, characterized in that the shaft hole is formed in a position eccentric from the center. In a constant velocity maintenance device using a friction material suitable for lifesaving in the event of a fire in a high-rise building, Base plate; A plurality of elastic members having one end fixed to the base plate; A support plate fixed to the other end of the plurality of elastic members; A housing fixed to the support plate and providing an inner space of a cylindrical cross section; A rotating body fitted to the inner space of the housing in a rotatable manner; A crank shaft having one end fixed to the rotating body and the other end extending outward of the housing; A winding reel fixed to the one end of the crankshaft outside the housing; A rod member having one end fixed to the base plate and the other end penetrating through the support plate and positioned on a portion of an inner surface of the housing; And The friction material is fixed to the other end of the rod member and the load acting on the take-up reel is changed to frictionally contact the outer surface of the rotating body as the housing moves downward, thereby maintaining a constant rotational speed of the crankshaft. Equal speed maintenance device using a friction material characterized in that it comprises a. The method of claim 22, A constant velocity holding device using a friction material, characterized in that the powder friction material is attached to the inner surface of the housing and the outer surface of the rotating body.