KR101321342B1 - Elastic tube and peristaltic pump comprising elastic tube - Google Patents

Abstract

PURPOSE: An elastic tube and a pump including the same are provided to extend the lifetime of the elastic tube by improving abrasion resistance. CONSTITUTION: An elastic tube comprises: a first elastic member in which the cross section thereof is swollen and is formed with a first joint member on both ends of the swollen part; and a second elastic member in which the cross section thereof is caved and is formed with a second joint member on both ends of the caved part. The first joint member and the second joint member are combined with each other. A path is formed between the swollen part and the caved part. The contact point between the first joint member and the swollen part is rounded. The contact point between the second joint member and the caved part is rounded.

Description

Peristaltic pump including elastic tube and elastic tube {ELASTIC TUBE AND PERISTALTIC PUMP COMPRISING ELASTIC TUBE}

The present invention relates to a peristaltic pump including an elastic tube and an elastic tube, and more particularly, a tube mounted in a peristaltic pump having a compression roller to pump a predetermined amount of fluid may be made of rubber, urethane or Teflon. Combining two sheets of extruded or thin steel sheet to each other to form an elastic tube having a flow path formed therein, and on the outside of the elastic tube is provided with a restoring pin interlocked with a restoring disk mounted on an extrusion roller for forced restoration. Thereby, a peristaltic pump having an elastic tube capable of continuously pumping a certain amount of fluid by improving the restoring force of the elastic tube compressed by the compression roller and a pair of peristaltic pump to remove the pulsation phenomenon. It relates to a pulsating pump.

In general, peristaltic pumps (peristaltic pump) is used in the medical field to deliver the extracorporeal fluid or to provide it in the correct amount.

In the peristaltic pump, as shown in FIG. 1, a tube made of a flexible material such as rubber is disposed along a cylindrical inner diameter inside the casing of the peristaltic pump, and the tube is locally blocked by compression rollers exerting an external radial force. Or occluded.

The closed position of the tube is changed as the compression rollers are driven along the tube, thereby changing the fluid, thereby performing the pumping of the fluid.

Korean Patent Laid-Open Publication No. 10-2000-0071876 relates to a peristaltic pump, and discloses a technology for dispensing a certain amount of fluid by arranging a tube in a housing and causing peristaltic motion in the tube through a driving means having a rotating body. Doing.

However, in the conventional peristaltic pump, there is a problem that the tube wears out due to repeated compression and expansion by the extrusion roller in the housing, thereby shortening the life of the tube. In addition, when the initial pressure of the working fluid is lower than the restoring force of the tube, for example, in the vacuum state, since the restoration of the tube compressed by the compression roller is not smoothly performed, there is a problem that it is difficult to accurately deliver the fluid.

The present invention has been made in order to solve the problems as described above, by forming the cross section of the elastic tube in which the flow path is formed in the elliptical elasticity that can reduce the degree of breakage due to compression because the end angle is smaller than the circular during compression An object of the present invention is to provide a peristaltic pump including a tube and an elastic tube.

In addition, the present invention includes an elastic tube and an elastic tube which are mounted in the housing of the peristaltic pump and compressed by the compression roller to form an elastic tube having an elliptical cross section of the flow path, which is resistant to wear and extends its life. An object of the present invention is to provide a peristaltic pump.

In addition, the present invention is provided with a return pin on the side of the elastic tube in contact with a pair of compression rollers spaced at a predetermined interval, the operation of the return pin and the return means by interposing a recovery disk formed with a return means between each compression roller It is an object of the present invention to provide a peristaltic pump including an elastic tube and an elastic tube capable of forcibly restoring the elastic tube, thereby preventing the precision from falling due to the variability of the tube even under a vacuum.

However, the object of the present invention is not limited to the above-mentioned objects, and other objects not mentioned can be clearly understood by those skilled in the art from the following description.

In order to achieve the above object, the elastic tube according to an embodiment of the present invention is made of an arcuate convex cross-section, the first elastic member and the cross-section is formed with a first joining member in the longitudinal direction on both side ends of the convex portion And a second elastic member having an arcuate recess and having a second joining member that is planar in a longitudinal direction at both side ends of the recess, wherein the first joining member and the second joining member are joined to the convex portion and the recess. A flow path is formed between the parts.

In addition, the elastic tube according to the present invention is characterized in that the first elastic member and the second elastic member are integrally formed by extrusion molding.

In addition, the peristaltic pump having an elastic tube according to the present invention, the housing is provided with an arc-shaped track, disposed on the track, the fluid inlet is formed at one end and the fluid outlet is formed at the other end, elastic Is connected to the elastic tube having a, and the fluid inlet and the connecting member, the inlet tube for introducing an external fluid into the elastic tube through the fluid inlet, and connected to the fluid outlet and the connecting member, the elastic tube inside It is rotatably mounted to the discharge tube and the central axis of the housing for discharging the fluid introduced into the outside through the fluid outlet, and generates the peristaltic movement of the elastic tube to transfer the fluid inside the elastic tube to the fluid outlet And a driving means, the driving means being mounted to a central axis of the housing and generating a rotational power, and a center It is connected to the drive motor, the rotary arm is received by the rotational power generated from the drive motor and is disposed spaced apart at regular intervals on each end of the rotary arm, and rotates along the track while pressing the elastic tube And a compression roller including a moving first roller and a second roller, wherein the elastic tube mutually couples both side ends of the first elastic member in contact with the track and both side ends of the second elastic member in contact with the compression roller. It is characterized by consisting of a tube.

In addition, the peristaltic pump having an elastic tube according to an embodiment of the present invention, the drive means includes an elliptical return means having a locking member between the first roller and the second roller, the elastic tube It is characterized in that it comprises a plurality of return pins for engaging the engaging member to return the elastic tube compressed by the compression roller.

In addition, the peristaltic pump having an elastic tube according to an embodiment of the present invention is characterized in that a protective film of a chemical resistant material is formed on the inner surface of the elastic tube.

In addition, the peristaltic pump having an elastic tube according to an embodiment of the present invention is characterized in that the protective film is made of an elastic material or an inelastic material including at least one of Teflon, urethane rubber, rubber.

In the peristaltic pump having an elastic tube according to another embodiment of the present invention, a linear track is provided at the top and the bottom thereof, respectively, and is disposed at each of the tracks so that a fluid inlet is formed at one end and the fluid at the other end. A discharge port is formed and connected to the elastic tube having elasticity, the fluid inlet and the connection member, the inlet tube for introducing external fluid into the elastic tube through the fluid inlet, and the fluid outlet and the connection member. And a driving means for transferring the fluid inside the elastic tube to the fluid outlet by generating a peristaltic motion of the discharge tube and the elastic tube for discharging the fluid drawn into the elastic tube to the outside through the fluid outlet. The driving means is mounted to one side of the housing and a driving motor for generating a rotational power, and provided in the housing, The first pulley for generating the driving power by receiving the rotational power generated from the drive motor, a second pulley disposed parallel to the first pulley spaced at a predetermined interval, and wound around the first pulley and the second pulley And a driving belt linearly moving to transfer the driving power generated from the first pulley to the second pulley and spaced apart from the driving belt at a predetermined interval, and pressurize each elastic tube according to the driving of the driving belt. A compression roller including a first roller and a second roller for generating a movement, and a guide plate disposed between or on both sides of the first roller and the second roller to guide movement of the compression roller, wherein the elastic tube includes: Both side ends of the first elastic member in contact with the track and both side ends of the second elastic member in contact with the compression roller are formed in a tube shape, the pressure Roller is characterized in that the at least four spaced apart a predetermined interval on the drive belt.

In addition, the peristaltic pump having an elastic tube according to another embodiment of the present invention, the elliptical return means provided with a locking member between the first roller and the second roller, the elastic tube is the locking member And a plurality of return pins for engaging with and returning the elastic tube compressed by the compression roller.

In addition, the peristaltic pump having an elastic tube according to another embodiment of the present invention includes a variable pressure plate disposed between the track and the elastic tube, through a pressure adjustment bolt installed in the vertical direction to the track, By adjusting the distance between the track and the variable pressure plate is characterized in that for varying the pressure of the elastic tube pressed by the compression roller.

In a peristaltic pump having an elastic tube according to another embodiment of the present invention, a linear track is provided at the upper and lower ends thereof, respectively, and is disposed at each of the tracks, so that a fluid inlet is formed at one end and the other end thereof. A fluid outlet is formed and is connected to the elastic tube having an elasticity, the fluid inlet and the connection member, the inlet tube for introducing external fluid into the elastic tube through the fluid inlet, and the fluid outlet and the connection member Connected to the discharge tube for discharging the fluid introduced into the elastic tube to the outside through the fluid discharge port, and a pressing plate disposed on the elastic tube and the pressing plate to press the fluid inside the elastic tube. And a driving means for transporting to the fluid discharge port, wherein the driving means is mounted at the center of the housing to generate rotational power. A disk-shaped rotary guide part mounted on a rotating shaft of the same motor, the driving motor, and rotating in the same direction as the longitudinal direction of the elastic tube by the rotating power of the driving motor, and a predetermined interval on the circumference of the rotating guide part. It is mounted spaced apart, and comprises at least one compression roller to sequentially press the pressing plate by the rotation of the rotary guide portion, wherein the elastic tube, both side ends of the first elastic member in contact with the track and the compression roller Both side ends of the second elastic member in contact with each other characterized in that the tubular shape.

In a peristaltic pump having an elastic tube according to another embodiment of the present invention, a linear track is provided at the upper and lower ends thereof, respectively, and is disposed at each of the tracks, so that a fluid inlet is formed at one end and the other end thereof. A fluid outlet is formed and is connected to the elastic tube having an elasticity, the fluid inlet and the connection member, the inlet tube for introducing external fluid into the elastic tube through the fluid inlet, and the fluid outlet and the connection member And a driving means connected to discharge the fluid drawn into the elastic tube to the outside through the fluid discharge port and pressurizing the elastic tube to transfer the fluid inside the elastic tube to the fluid discharge port. The drive means is mounted on one side of the housing and a drive motor for generating a rotational power, provided in the housing, It is mounted on the rotating shaft of the drive motor to receive the rotational force rotational movement, the cylindrical rotary guide portion disposed in the same direction as the longitudinal direction of the elastic tube, the longitudinal direction and the circumferential direction of the rotary guide portion on the outer peripheral surface of the rotary guide portion And a compression roller which is mounted spaced apart from each other at regular intervals in both directions, and presses the elastic tube sequentially in the longitudinal direction by the rotation of the rotary guide part, wherein the elastic tube includes a first elastic member in contact with the track surface. Both sides of the side and the second side of the second elastic member in contact with the compression roller are coupled to each other characterized in that the tubular shape.

In a peristaltic pump having an elastic tube according to still another embodiment of the present invention, a linear track is provided on at least one inner surface, and a housing is disposed on each of the tracks, and a fluid inlet is formed at one end and is provided at the other end. The fluid outlet is formed, the elastic tube having an elasticity, connected to the fluid inlet and the connecting member, the inlet tube for introducing external fluid into the fluid inlet, and connected to the fluid outlet and the connecting member, the drawn And a driving means for pressing the discharge tube for discharging the fluid to the outside through the fluid discharge port and each of the elastic tubes to transfer the fluid drawn through the fluid inlet to the fluid discharge port. A drive motor mounted on the drive motor and generating rotational power, and mounted on a rotation shaft of the drive motor to receive the rotational power Perform the pre-movement, and the cylindrical rotary guide portion disposed in the same direction as the longitudinal direction of the elastic tube, and protruded in the circumferential direction and spaced at regular intervals in the longitudinal direction on the outer side of the cylindrical rotary guide portion, The first to third compression member and the first to third compression member and the first compression member and the third compression member provided to be sequentially compressed in the longitudinal direction are respectively disposed between the elastic tube, guide the rotation of the cylindrical rotating guide portion and the first And auxiliary rollers for reducing frictional force between the compression member and the third compression member and the elastic tube, wherein the elastic tube includes both side ends of the first elastic member in contact with the track surface and the second elastic member in contact with the compression roller. It is characterized in that the both ends are formed in a tube shape by mutually coupling.

In addition, the peristaltic pump having an elastic tube according to another embodiment of the present invention, the cross section of the rotary guide portion through a horizontal line and a vertical line passing through the center point of the cross-section 1, 2, 3, 4 When forming a quadrant, the first compression member is disposed on the outer circumferential surface of the first, second, and fourth quadrants, the second compression member is disposed on the outer circumferential surface of the second quadrant, and the third compression member is disposed on the outer circumferential surface of the second quadrant. It is disposed on the outer circumferential surface of the quadrant, characterized in that the second compression member is formed longer than the first compression member and the third compression member.

In the peristaltic pump including the elastic tube according to the present invention, the elastic tube is laminated in one or more layers, characterized in that the multi-layer structure.

In addition, in the peristaltic pump including the elastic tube according to the present invention, the first electrode part and the second electrode part electrically connected to the external electrode measuring part inside the first elastic member and the second elastic member face each other. Each of the electrode measuring units is installed at a viewing position, and the pressure of the elastic tube is measured by the charge capacity detected between the first and second electrode units.

The pulsation-free pump according to another embodiment of the present invention comprises a pair of peristaltic pumps, a discharge tube coupling part for coupling the discharge tube of the first peristaltic pump and the discharge tube of the second peristaltic pump, and And a fluid transfer tube connected to the coupling part to transfer the fluid discharged through the discharge tube, wherein the rotary arm of the first peristaltic pump and the rotary arm of the second peristaltic pump rotate at a predetermined angle, respectively. The angular velocity is set to be faster, and the rotational angular velocities of the rotary arm of the first peristaltic pump and the rotary arm of the second peristaltic pump are alternately set in a predetermined angle phase.

In addition, in the peristaltic pump according to another embodiment of the present invention, the phase of the predetermined angle set in the rotary arm of the first peristaltic pump and the rotary arm of the second peristaltic pump is set to 90 °. It features.

According to the peristaltic pump provided with the elastic tube of the present invention, by forming the elastic tube using two sheets of Teflon sheet or thin steel sheet having elasticity with respect to the tube mounted in the housing of the peristaltic pump, There is an advantage that can increase the life of the elastic tube by increasing the resistance to wear due to friction.

Further, the peristaltic pump according to the present invention has a return pin on the side of the elastic tube in contact with a pair of compression rollers spaced at a predetermined interval, and returns by interposing a recovery disk having a return means formed between the compression rollers. The elastic tube can be forcibly restored by the operation of the pin and the return means. Therefore, the precision can be prevented from being deteriorated due to the variability of the tube even under vacuum, and there is an advantage that the sludge-type fluid containing the powder can also flow.

In addition, by connecting in parallel a plurality of peristaltic pumps according to the present invention, the compression time of the elastic tube by the compression roller, there is an advantage that can realize a pulsation-free pump to prevent the pulsation phenomenon that can occur in the peristaltic pump .

1 is a cross-sectional view showing the configuration of a conventional peristaltic pump.
2 is a perspective view showing an elastic tube according to the present invention.
3 is an exemplary view showing an elastic tube having a protective film according to the present invention.
Figure 4 is a block diagram showing a peristaltic pump including an elastic tube according to a first embodiment of the present invention.
Figure 5 is a front view showing a compression roller for compressing the elastic tube in the peristaltic pump according to the first embodiment of the present invention.
6 is an exemplary view showing a state in which the elastic tube according to the present invention is mounted in a multilayer structure.
7A is a schematic diagram showing a linear peristaltic pump according to a second embodiment of the present invention.
Fig. 7B is a front view showing the internal configuration of a linear peristaltic pump according to the second embodiment of the present invention.
Figure 8 is a schematic diagram showing a linear peristaltic pump that can apply a variable pressure to the elastic tube according to the present invention.
9A is a cross-sectional view showing the configuration of a peristaltic pump including an elastic tube according to a third embodiment of the present invention, and FIG. 9B is a front view.
10A is a cross-sectional view showing the configuration of a peristaltic pump including an elastic tube according to a fourth embodiment of the present invention, and FIG. 10B is a front view.
11A is a cross-sectional view schematically showing the configuration of a peristaltic pump including an elastic tube according to a fifth embodiment of the present invention, and FIG. 11B is a front view.
FIG. 12 is an exemplary view showing the inflow and outflow of fluid in the elastic tube according to the operation of the peristaltic pump according to FIGS. 11A and 11B.
13 is an exemplary view for measuring the pressure state of the elastic tube according to the present invention.
14 is an exemplary view showing a flow rate between two compression rollers in the peristaltic pump.
15 is an exemplary view showing a state of the fluid discharged in accordance with the operation of the peristaltic pump according to the present invention.
16 is an exemplary view showing a pulsation-free pump using a peristaltic pump according to the present invention.
17 is an exemplary view showing a state of a fluid discharged according to the operation of the pulsation-free pump of FIG.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a detailed description of preferred embodiments of the present invention will be given with reference to the accompanying drawings. In the following description of the present invention, detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

Embodiments in accordance with the concepts of the present invention can make various changes and have various forms, so that specific embodiments are illustrated in the drawings and described in detail in this specification or application. However, this is not intended to limit the embodiments in accordance with the concept of the present invention to a particular disclosed form, it should be understood to include all changes, equivalents, and substitutes included in the spirit and scope of the present invention.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between. Other expressions that describe the relationship between components, such as "between" and "between" or "neighboring to" and "directly adjacent to" should be interpreted as well.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this specification, the terms "comprises ",or" having ", or the like, specify that there is a stated feature, number, step, operation, , Steps, operations, components, parts, or combinations thereof, as a matter of principle.

2 is a perspective view showing an elastic tube according to the present invention. As shown in (a) of FIG. 2, the elastic tube 10 may include a first elastic member 11 and a second elastic member 12.

The first elastic member 11 is an elastic material, and is made of rubber, urethane, teflon, or the like, and has an arcuate convex portion 11_1 in cross section, and has a first flat surface in the longitudinal direction at both ends of the convex portion 11_1. The bonding member 11_2 may be integrally formed.

In addition, the second elastic member 12 is made of the same material as the first elastic member 11, the cross section is composed of an arcuate recessed portion 12_1, and both sides end of the recessed portion 12_1 is planar in the longitudinal direction. The second bonding member 12_2 may be formed.

Accordingly, the elastic tube 10 has a flow path 13 through which a fluid flows between the convex portion 11_1 and the concave portion 12_1 by combining the first bonding member 11-2 and the second bonding member 12-2. Can be formed.

In particular, rounding is formed at the point where the first joining member 11_2 and the convex portion 11_1 meet, and rounding is formed at the point where the second joining member 12_2 and the concave portion 12_1 meet, thereby forming the elastic tube 10. ) Can be prevented from being damaged at both ends of the flow path (13). In addition, in the case of compressing the elastic tube 10 by pressing, as shown in (b) of FIG. 2, the deformation angle α of the first elastic member 11 and the second elastic member 12 is circular. Since it is smaller than that, the damage by pressurization can be reduced. In addition, the elastic tube 10 may be restored with a small restoring force even when restoring by the elastic force.

The elastic tube 10 may be formed by bonding the first bonding member 11-1 and the second bonding member 12-1, and may form the elastic tube 10 integrally by extrusion molding. have.

3 is an exemplary view showing an elastic tube formed with a protective film according to the present invention. As shown, a protective film 14 made of a chemical resistant material may be formed inside the elastic tube 10. The protective film 14 is preferably formed of an elastic material or an inelastic material formed of, for example, at least one of Teflon, urethane rubber, and rubber.

In particular, by forming the protective film 14 in the elastic tube 10, it is possible to stably cope with the fluid made of various chemicals, in the case of the protective film 14 using a rubber or the like having a large friction force, the fluid containing powder, such as sludge With respect to the elastic tube 10 itself is applied only the compressive stress (compressive stess) shear stress (shear stress) is characterized in that the fluid can be easily transported.

Figure 4 is a block diagram showing a peristaltic pump including an elastic tube according to a first embodiment of the present invention, Figure 5 is a compression roller for compressing the elastic tube in a peristaltic pump according to a first embodiment of the present invention It is a front view showing.

As shown, the peristaltic pump 100 according to the first embodiment of the present invention may include a housing 110, an elastic tube 120, and a driving means 130.

The housing 110 has an arc-shaped track 111 therein, and the elastic tube 120 may be disposed on the track 111. The elastic tube 120 has a fluid inlet 121 through which fluid is introduced at one end thereof, and a fluid outlet 122 at which the fluid transferred along the inside of the elastic tube 120 is discharged at the other end thereof.

In addition, the inlet tube 123 for introducing the external fluid into the elastic tube 120 through the fluid inlet 121 is connected to the fluid inlet 121 through the connecting member 124, the fluid outlet 122 Discharge tube 125 to be discharged to the outside through the same can also be connected through the connection member 124. In particular, although not shown, each connection member 124 may be provided with a check valve capable of transferring the fluid in one direction. Therefore, the fluid introduced or discharged can be prevented from being transferred in the opposite direction.

The elastic tube 120 has a second elastic member 127 having both side ends of the first elastic member 126 having an arcuate convex portion in contact with the track 111 and an arcuate recess in contact with the compression roller 160. By combining with each other it may be made of a tube shape that is formed in the passage.

In particular, although not specifically illustrated, the first elastic member 126 and the second elastic member 127 may be formed by, for example, laminating an organic thin plate containing Teflon material or this organic thin plate, The first elastic member 126 and the second elastic member 127 may use a thin steel sheet.

The driving means 130 is rotatably mounted on the central axis of the housing 110, and generates a peristaltic motion of the elastic tube 120 to transfer the fluid inside the elastic tube 120 to the outside.

Such, the drive means 130 may include a drive motor 140, the rotary arm 150 and the compression roller 160. The drive motor 140 is mounted on the central axis of the housing 110 to generate rotational power, and the rotation arm 150 has a central axis connected to the drive motor 140 to generate the rotational power generated by the drive motor 140. Can receive rotational movement.

Compression rollers 160 are rotatably mounted at each end of the rotary arm 150. In particular, the compression roller 160 may be arranged spaced apart from each other, and may be composed of a first roller 161 and a second roller 162 to move along the track while pressing the elastic tube 120.

Therefore, as shown in the drawing, the compression roller 160 is rotated along the arc-shaped track 111 while compressing the elastic tube 120 by the rotation of the rotary arm 150, the compression roller 160 The fluid drawn from the outside through the inlet tube 123 by the pressing force of the may be transferred to the discharge tube 125 in the elastic tube 120 may be discharged to the outside. In particular, when the compression roller 160 rotates along the elastic tube 120, the compressed elastic tube 120 can be restored to its original form by the elastic force.

In the peristaltic pump 100 according to the present invention, as shown in a and b of FIG. 5, an elliptical member having locking members 171 and 171 ′ is provided between the first roller 161 and the second roller 162. Return means (170, 170 ') in the form of a disk may be interposed.

In addition, a plurality of return pins 128 and 128 ′ engaged with the engaging members 171 and 171 ′ may be provided on the outer surface of the second elastic member 127 constituting the elastic tube 120. Accordingly, the return pins 128 and 128 'are caught by the front ends of the locking members 171 and 171' in the state in which the elastic tube 120 is compressed by the compression roller 160, and the rotation of the compression roller 160 is rotated. When moved by the return pin (128, 128 ') is moved along the locking member (171, 171') is moved can be released from the locking member (171, 171 ') through the rear end. At this time, since the return means 170 is made of an oval shape, the locking members 171 and 171 'pull the return pins 128 and 128' to force the elastic tube 120 compressed by the compression roller 160. There is a feature that can be restored.

For example, the return means 170 and 170 'and the return pin 128 and 128' may be reduced even when the elastic force is reduced due to the repeated compression-restore operation of the elastic tube 120, or when operating in a high viscosity fluid or a vacuum state. Due to the forced return of the) is characterized in that the restoring force of the elastic tube 120 can be maintained continuously.

The return means 170 and 170 'and the return pins 128 and 128' according to the present invention may be configured in various shapes in addition to those shown in FIG. 4 if the restoring force of the elastic tube 120 can be maintained. .

6 is an exemplary view showing a state in which the elastic tube according to the present invention is mounted in a multilayer structure. As shown in FIG. 6, the pumping capacity can be increased by mounting the two elastic tubes 120 in the housing 110 in a multi-layer structure, and although not shown, for the single elastic tube 120, the area is increased. The pumping capacity of the fluid may be increased by forming a large internal space using the wide first elastic member 126 and the second elastic member 127. As shown in Figure 6, when forming the elastic tube in a multi-layer structure, the return pin according to the present invention can be mounted on the uppermost layer.

In addition, in the first embodiment of the present invention has been described in the case of mounting two compression rollers to the rotary arm, it is also possible to employ a configuration that can be equipped with a plurality of compression rollers depending on the pumping capacity and the application of the incoming fluid. have.

7A and 7B are schematic views showing the linear peristaltic pump and the internal structure according to the second embodiment of the present invention. As shown, the peristaltic pump 200 may include a housing 210, an elastic tube 220, and a driving means 230 for transferring a fluid inside the elastic tube 220.

The elastic tube 220 is made of the same shape and material as the elastic tube 120 described in the first embodiment of the present invention, and a detailed description thereof will be omitted.

The housing 210 may be provided with a straight track 211 at the top and the bottom thereof, respectively, and the elastic tube 220 may be disposed at each track 211. A fluid inlet 221 is formed at one end of each elastic tube 220, and a fluid outlet 222 is formed at the other end. In addition, the fluid inlet 221 is connected to the inlet tube 223 for introducing the external fluid into the elastic tube 220 through a connecting member 224 having a check valve (not shown) therein, the fluid The outlet 222 may also be connected to the discharge tube 225 for discharging the fluid drawn into the elastic tube 220 to the outside through the connecting member 224.

The driving means 230 is mounted on one side of the housing 210 and is provided in the driving motor 240 and the housing 210 to generate rotational power and is rotated by receiving the rotational power generated from the driving motor 240. It may include a first pulley 241 for generating a and a second pulley 242 disposed in parallel with a predetermined interval spaced apart from the first pulley 241. That is, the first pulley 241 may be disposed on one side of the housing 210 in which the driving motor 240 is mounted, and the second pulley 242 may be disposed on the other side of the housing 210.

In addition, between the first pulley 241 and the second pulley 242, the driving belt 250 is the first pulley 241 to transfer the driving power generated in the first pulley 241 to the second pulley 242. And a second pulley 242.

The plurality of compression rollers 260 may be mounted on the driving belt 250 at regular intervals. The compression roller 260 presses each elastic tube 220 in accordance with the driving of the driving belt 250 to generate a peristaltic motion, so that the first roller 261 and the second roller (arranged at a predetermined interval) 262). Between the first roller 261 and the second roller 262, as shown in FIG. 7B, the elastic tube 220 is compressed while the compression roller 260 moves, that is, rotates along the driving belt 250. Guide plate 270 may be provided to guide the movement so as to be able to. Although not shown, the guide plate 270 may be provided at both sides of the compression roller 260 to guide the movement of the compression roller 260.

In the second embodiment of the present invention, as shown, three compression rollers 260 are disposed on the drive belt 250, but the number is not limited in some cases.

In addition, between the first roller 261 and the second roller 262, although not shown, as in the first embodiment, an elliptical return means having a locking member may be interposed, and the elastic tube 220 In addition, a plurality of return pins for engaging the engaging member and forcibly returning the elastic tube 220 compressed by the compression roller 260 may be arranged in a line along the elastic tube 220 in contact with the compression roller 260. have.

Figure 8 is a schematic diagram showing a linear peristaltic pump that can apply a variable pressure to the elastic tube according to the present invention. As shown, in the peristaltic pump 200 of FIGS. 7A and 7B, a variable pressure plate may be provided between each track 211 and the elastic tube 260 so that a variable pressure may be applied to the elastic tube 260. 280 may be disposed.

In addition, a plurality of pressure adjusting bolts 281 may be mounted to penetrate the housing 210 in the vertical direction of the track 211, so that the ends of the pressure adjusting bolts 281 may be connected to the variable pressure plate 280.

Therefore, by adjusting the distance between the track 211 and the variable pressure plate 280 through the operation of the pressure adjusting bolt 281, the pressure of the elastic tube 260 is pressed by the compression roller 260 to change the fluid movement Speed and so on.

Figure 9a is a cross-sectional view showing the configuration of a peristaltic pump including an elastic tube according to a third embodiment of the present invention, Figure 9b is a front view. The elastic tube 320, the inlet tube 323, the discharge tube 325 and the connecting member 324 constituting the peristaltic pump 300 according to the third embodiment of the present invention is the first embodiment and the second embodiment The same components as described in the example can be employed, and detailed description thereof will be omitted.

As shown, the interior of the housing 310 has a straight track 311 is provided at the top and bottom, respectively, each of the elastic tube 320 is formed with a fluid inlet 321 and the fluid outlet 322, respectively. Can be arranged. In addition, on the elastic tube 320, that is, between the elastic tube 320 and the compression roller 360, the pressing plate 380 corresponding to or slightly smaller than the length of the elastic tube 320 may be disposed.

The drive means 330 including the compression roller 360 may be mounted to a drive motor 340 that generates rotational power at the outer center of the housing 310. A pair of disc-shaped rotation guide parts 350 connected to the rotation shaft 341 of the driving motor 340 and rotating in the same direction as the longitudinal direction of the elastic tube 320 by the rotational power of the driving motor 340. May be disposed inside the housing 310. The pair of rotation guide parts 350 are arranged to be spaced apart from each other by a compression roller 360 between the rotation guide parts.

For example, three compression rollers 360 may be mounted on the circumference of the rotation guide unit 350 at regular intervals, and may press the pressing plate sequentially by the rotation of the rotation guide unit 350. . At this time, the entire upper or lower elastic tube 320 is compressed by the pressing plate 370 disposed between the elastic tube 320 and the compression roller 360, and the fluid introduced through the inlet tube 323 is discharged at the same time. It can be discharged to the tube 325 to maximize the pumping function.

In the third embodiment of the present invention, three compression rollers 360 are disposed on the rotation guide part 350, but the number is not limited. In addition, the coupling form of the rotation guide 350 and the compression roller 360 may also be variously changed.

Figure 10a is a cross-sectional view showing the configuration of a peristaltic pump including an elastic tube according to a fourth embodiment of the present invention, Figure 10b shows a front view. The elastic tube 420, the inlet tube 423, the discharge tube 425, and the connecting member 424 constituting the peristaltic pump 400 according to the fourth embodiment of the present invention are implemented in the first to third embodiments. The same components as described in the example can be employed, and detailed description thereof will be omitted.

Inside the housing 410, a straight track 411 is provided at the top and the bottom, respectively, and each of the tracks 411 are arranged with an elastic tube 420 having a fluid inlet 421 and a fluid outlet 422, respectively. Can be.

The drive means 430, which includes a compression roller 360 for compressing the elastic tube 420, may be mounted with a drive motor 440 that generates a rotational power on the outside of the housing 410.

The cylindrical rotary guide portion 450 is connected to the rotation shaft 441 of the drive motor 440, is rotated by receiving the rotational power of the drive motor 440, and is disposed in the same direction as the longitudinal direction of the elastic tube 420. May be disposed inside the housing 410. That is, the length of the rotation guide portion 450 may be formed to be the same or slightly smaller than the length of the elastic tube 420.

On the outer circumferential surface of the rotary guide portion 450, a plurality of compression rollers 460 may be arranged to be spaced apart at regular intervals in the longitudinal direction of the rotary guide portion 450, and may be mounted at regular intervals in the circumferential direction.

Therefore, the compression roller 460 may press the elastic tube 420 sequentially in the longitudinal direction by the rotation of the rotation guide part 450. In addition, fluids moving in each of the elastic tubes 420 disposed at the top and bottom of the housing 410 may be drawn in and discharged in the same direction.

Figure 11a is a cross-sectional view schematically showing the configuration of a peristaltic pump including an elastic tube according to a fifth embodiment of the present invention, Figure 11b is a front view, Figure 12 is an operation of the peristaltic pump according to Figures 11a and 10b Accordingly, it is an exemplary view showing the inlet and outlet states of the fluid in the elastic tube.

The elastic tube 520, the inlet tube 523, the discharge tube 525 and the connecting member 524 constituting the peristaltic pump 500 according to the fifth embodiment of the present invention is the first embodiment to the fourth embodiment The same components as described in the example can be employed, and detailed description thereof will be omitted.

As shown in the figure, a linear track 511 is provided inside the housing 510, for example, at an upper end, a lower end, and a front end, and each track 511 has a fluid inlet 521 and a fluid outlet 522. Each of the elastic tube 520 is formed may be disposed.

The driving means 530 for compressing the elastic tube 520 to interlock with each other may be mounted to a driving motor 540 that generates rotational power on the outer side of the housing 510. Is connected to the rotary shaft 541 of the drive motor 540, the rotational movement is received by the rotational power of the drive motor 540, the cylindrical rotation guide portion 550 disposed in the same direction as the longitudinal direction of the elastic tube 520 May be disposed inside the housing 510. In addition, the length of the rotation guide 550 may be formed to be the same or slightly smaller than the length of the elastic tube 520.

The first compression member, the second compression member and the third compression member may be disposed on the outer side of the rotation guide part 550 in the circumferential direction and spaced apart at regular intervals in the longitudinal direction. For example, the first quadrant (a), the second quadrant (b), the third quadrant (c), and the fourth quadrant (d) are partitioned through a horizontal line and a vertical line passing through the center point of the cross section of the rotation guide part 550. In the case of forming, the first compression member 561 is arranged to protrude on the outer circumferential surface of the rotation guide portion 550 in one, two, four quadrants, the second compression member 562 is rotated in two quadrants It may be disposed to protrude on the outer peripheral surface of the guide portion 550.

In addition, the third compression member 563 may be disposed to protrude on the outer circumferential surface of the rotation guide part 550 in two, three, and four quadrants. In particular, the second compression member 562 is formed longer than the first compression member 561 and the third compression member 563.

Accordingly, the first compression member 561 and the third compression member 563 are configured to surround the outer circumferential surface of the rotation guide part 550 by about 3/4, and the second compression member 562 is the rotation guide part 550. It is configured to surround about 1/4 of the outer circumferential surface of the elastic tube 520 may perform continuous and sequential compression in the longitudinal direction.

For example, the first compression member 561 in the position of the first quadrant (a), the first compression member 561, the second compression member 562 and the third compression member 563 in the position of the second quadrant (b) ) May be arranged, and the third compression member 563 is disposed at the position of the third quadrant c, and the first compression member 561 and the third compression member 563 are disposed at the position of the fourth quadrant d. Can be arranged.

In addition, a plurality of auxiliary rollers 560 may be disposed between the first compression member 561 to the third compression member 563 and the elastic tube 520. Accordingly, as the rotation guide 550 rotates, the rotation of the first compression member 561 to the third compression member 563 may be guided, and at the same time, frictional force with the elastic tube 520 may be reduced.

FIG. 12 is an exemplary diagram illustrating a state of inflow and outflow of fluid in the elastic tube, and illustrates inflow and outflow of fluid with respect to one elastic tube 520 disposed in the housing 510.

First, the fluid introduced through the inlet tube 523 is moved by the pressure of the first compression member 561 (S1), the first compression member 561 to the third in accordance with the rotation of the rotation guide portion 550 The compression member 563 may pressurize the elastic tube 520 to discharge the fluid through the discharge tube 525 (S2). Thereafter, the third compression member 563 continues to pressurize the elastic tube 520, and the first compression member 561 and the second compression member 562 release the compressed state so that the fluid is drawn in from the outside. (S3).

Next, in a state in which the first compression member 561 and the third compression member 563 press the elastic tube 520 (S4), when the compression state of the third compression member 563 is released, the elastic tube 520 is released. Fluid in the) may be moved toward the discharge tube (525) (S5).

Thus, for example, the rotation guide portion 550 in the form of 'front pressure', 'front pressure + middle pressure + back pressure', 'back pressure', 'back pressure + front pressure' of the elastic tube 520. By implementing the four sequential functions through the region-specific pressing function of), the fluid in the elastic tube 520 can be continuously moved in a desired direction.

As described above, according to the fifth embodiment of the present invention, a plurality of elastic tubes 520 may be arranged in parallel with the rotation guide part 550 in the housing 510, the rotation of the rotation guide part 550 Pressing each elastic tube 520 according to the angle, and the position to press the pressure depending on the angle is characterized in that the plurality of fluids can be transferred through different elastic tubes 520.

Figure 13 is an exemplary view for measuring the pressure state of the elastic tube according to the present invention. As illustrated, the first electrode part 610 is electrically connected to the external electrode measuring part 600 inside the first elastic member 126 and the second elastic member 127 constituting the elastic tube 120. ) And the second electrode unit 620 may be installed at positions facing each other.

For example, the capacitor capacitance generated by the two electrodes is inversely proportional to the spacing of the electrodes, and the spacing of the electrodes is proportional to the pressure, so that the electrode measuring part 600 includes the first electrode part 610 and the second electrode part. The pressure of the elastic tube 120 may be measured periodically or in real time with the charge capacity detected between 620.

14 is an exemplary view showing the flow rate between the two compression rollers in the peristaltic pump, Figure 15 is an exemplary view showing a state of the fluid discharged in accordance with the operation of the peristaltic pump according to the present invention.

In general, when each compression roller reaches the position of the fluid outlet port in the peristaltic pump, as shown in Figure 14, the pulsation phenomenon occurs that the discharge flow rate is zero. In particular, when the angular velocity of the drive motor is constant, the time for the pulsation phenomenon can be formed constant.

Therefore, as shown in FIG. 15, the time at which pulsation occurs can be reduced by changing the angular speed of the drive motor at intervals of 180 degrees. For example, when each extrusion roller is in the position of the fluid outlet port, the speed of each of the drive motors is increased, thereby reducing the time period during which the flow rate is reduced.

16 is an exemplary view showing a pulsation-free pump using a peristaltic pump according to the present invention, Figure 17 is an exemplary view showing a state of the fluid discharged in accordance with the operation of the pulsation-free pump of FIG.

When the peristaltic pump 100 according to the first embodiment of the present invention is connected in parallel, that is, the discharge tube 125_1 of the first peristaltic pump 100_1 and the discharge tube 125_2 of the second peristaltic pump 100_2. ) Is connected to the coupling portion 190, and the coupling portion 190 is connected to the fluid transfer pipe 191 to the fluid discharged through each discharge tube (125_1 and 125_2) one fluid transfer pipe (191) Can be discharged through.

In addition, the rotary arms of the first peristaltic pump 100_1 are configured such that the rotary arms of the second peristaltic pump 100_2 have a 90 ° phase difference from each other. As shown, the compression rollers (a, b) and the compression rollers (c, d) have a 90 ° phase difference.

In particular, the angular velocity of the rotary arm of each drive motor can be changed for each phase of 90 degrees. For example, as shown in (a) of FIG. 17, the compression rollers (a, b) have a high speed in a phase of 90 °, so that the flow rate with time can be detected as shown in (b) of FIG. 17. have. In addition, the angular velocity of the compression rollers (c, d) having a 90 ° phase difference from the compression rollers (a, b) is also shown in (c) of FIG. A flow rate such as (d) can be detected.

Therefore, as shown in FIG. 17E, when pulsation occurs by the compression rollers b and a of the first peristaltic pump 100_1, the compression roller of the second peristaltic pump 100_2 is formed. The flow rate of the fluid discharged by the d, c) is increased so that the flow rate of the total fluid discharged through the fluid transfer pipe 191 can be kept constant, on the contrary, the compression roller (c) of the second peristaltic pump (100_2) , d) when the pulsation is generated, the flow rate of the fluid discharged by the compression rollers (a, b) of the first peristaltic pump (100_1) increases, so that the increase and decrease of the flow rate is canceled out and discharged It is characterized by the fact that a pulsation-free pump which does not generate pulsation for a fluid can be realized.

In the aforementioned pulsationless pump, the rotary arm of the first peristaltic pump and the rotary arm of the second peristaltic pump are configured to have a 90 ° phase difference from each other. Although not specifically illustrated, depending on the number of rotary arms constituting each peristaltic pump, for example, when there is one rotary arm, the rotary arm of the first peristaltic pump and the point arm of the second peristaltic pump are 180. It can be configured to have a phase difference of °. In this case, each rotary arm can be configured such that the increase and decrease of the flow rate cancel each other out by changing the rotational angular velocity at the fluid inlet and fluid discharge positions.

In addition, when the number of rotary arms provided in the peristaltic pump is four, the rotary arms of each peristaltic pump are configured to have a phase difference of 45 ° to each other, and the angular velocity of each rotary arm is changed for each phase of 45 ° and discharged. The increase and decrease of the flow rate for the fluid to be compensated with each other can be implemented to the pulsation-free pump does not occur.

In addition, the pulsation-free pump of the present invention is configured to be composed of a pair of peristaltic pumps, but a plurality of rotary arms having a phase difference from each other in one housing are installed to be operated by one drive motor, and mounted on each rotary arm. Compression rollers may be configured to compress each elastic tube to have a phase difference to discharge the fluid.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. will be. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

10: elastic tube
11: first elastic member
12: second elastic member
100, 200, 300, 400, 500: peristaltic pump
110, 210, 310, 410, 510: housing
111, 211, 311, 411, 511: track
120, 220, 320, 420, 520: elastic tube
121, 221, 321, 421, 521: fluid inlet
122, 222, 322, 422, 522: fluid outlet
123, 223, 323, 423, 523: incoming tube
124, 224, 324, 424, 524: connecting member
125, 225, 325, 425, 525: discharge tube
126: first elastic member
127: second elastic member
128, 128 ': Return pin
130, 230, 330, 430, 530: driving means
140, 240, 340, 440, 540: drive motor
150: rotating arm
160, 260, 360, 460: Compression Roller
161, 261: first roller
162, 262: second roller
170, 170 ': Return means
171, 171 ': locking member
180: shield
241: first pulley
242: second pulley
250: driving belt
270 guide plate
280: variable pressure plate
281: pressure adjustment bolt
350, 450: disc-shaped rotation guide portion
560: auxiliary roller
561: first compression member
562: second compression member
563: third compression member

Claims (4)

A first elastic member having an arcuate convex cross section and having first planar joining members in a longitudinal direction at both side ends of the convex portion; And
A second elastic member having an arcuate recess in cross section and having second flattening members in a longitudinal direction at both side ends of the recess;
The first joining member and the second joining member are combined to form a flow path between the convex portion and the concave portion,
A rounding is formed at the point where the first joining member and the convex portion meet, and a rounding is formed at the point where the second joining member and the concave portion meet, thereby preventing breakage of both ends during tube compression.
The method of claim 1,
An elastic tube, characterized in that the first elastic member and the second elastic member is formed in one piece through extrusion molding.
The method of claim 1,
Elastic tube, characterized in that the protective film of the chemical resistance material is formed on the inner surface of the elastic tube.
The method of claim 3, wherein
The protective film is an elastic tube, characterized in that made of an elastic material or an inelastic material containing at least one of Teflon, urethane rubber, rubber.

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