KR102058614B1 - Detachable pressure vessel unit - Google Patents

Abstract

The present invention relates to a pressure vessel unit and, more specifically, to a prefabricated pressure vessel unit, wherein an upper cap and a lower cap provided in the pressure vessel are installed to allow detachment and attachment by a fastener, thereby facilitating production and reducing production time.

Description

Prefabricated Pressure Vessel Unit {DETACHABLE PRESSURE VESSEL UNIT}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pressure vessel unit, and in particular, a prefabricated pressure vessel unit capable of easily producing the upper cap and the lower cap provided in the pressure vessel by means of fasteners, thereby facilitating production and thereby shortening the production time.

Generally referred to as pressure vessels are for storing high pressure fluids as is well known. The pressure vessel is provided with an entrance portion so that fluid is introduced into or discharged from the hydraulic vessel.

The pressure vessel typically includes a hollow pressure vessel body and a cap provided on the pressure vessel body. The cap is fixed to the pressure vessel body by welding.

By the way, the prior art has a problem that the cap and the pressure vessel body by welding as described above takes a lot of production time.

On the other hand, the above-described pressure vessel itself is well known and described in detail in the following prior art document, the description and illustration thereof are omitted.

Korea Patent Registration No. 10-0336333

The present invention has been made to solve the above-mentioned problems, the pressure cap unit can be installed by detachably installing the upper cap and the lower cap provided in the pressure vessel by a fastener to facilitate the production and thereby shorten the production time It aims to provide.

However, the object of the present invention is not limited to the above-mentioned object, another object that is not mentioned will be clearly understood by those skilled in the art from the following description.

In order to achieve the above object, the present invention is the upper cap 200 and the lower cap 300, which is detachably provided at the upper and lower portions of the pressure vessel 100, and the pressure vessel 100 or the upper cap 200 or It is provided in the lower cap 300 includes an entrance (EV) to the fluid flow in, the pressure vessel 100 is a hollow shape and the upper and lower portion includes an open pressure vessel body 110, the upper cap 200 ) Is a plate-shaped upper cap body 210 covering the upper surface opening portion 120 of the pressure vessel body 110, and penetrates the upper cap body 210, the thickness surface of the upper surface opening portion 120 A first fixing tool (F1) is fixed to the (121), wherein the lower cap 300 is a plate-shaped lower cap main body 310 to cover the lower opening 130 of the pressure vessel body 110, A second fixing tool F2 penetrating through the lower cap body 310 and fixed to the thickness surface 131 of the lower surface opening part 130. The top cap 200 and bottom cap 300 provides the assembled pressure container unit provided detachably to the pressure vessel body (110).

In the above description, a ring-shaped upper gasket GA1 provided between the upper cap body 210 and the upper opening surface 120 of the pressure vessel body 110, the lower cap body 310 and the pressure vessel body ( A ring-shaped lower gasket GA2 is provided between the lower opening surfaces 130 of the 110.

In the above, the access unit (EV) is the first entry portion 700 provided on the upper surface of the pressure vessel 100, the second entry portion 800 provided on the lower surface of the pressure vessel 100, And a third entry part 900 provided on the side of the pressure vessel 100, wherein the first entry part 700 passes through the upper cap 200 to communicate with the inside of the pressure vessel 100. A pipe 710 and a valve unit 730 provided at one side of the flow pipe 710 to control the entry and exit of the fluid, the second access portion 800 is penetrated through the lower cap 300 And a flow pipe 810 communicating with the inside of the pressure vessel 100, and a valve part 830 provided at one side of the flow pipe 810 to control the entry and exit of the fluid. The flow pipe 910 which passes through the pressure vessel 100 side surface and communicates with the inside of the pressure vessel 100, and is provided on one side of the flow pipe 910 to control the flow of fluid A valve portion 930, and the valve portions 730, 830 and 930 are provided in the valve bodies 734, 834 and 934 to drive the valve bodies 734, 834 and 934 and the handles 731, 831 and 931 provided in the shaft SH. And a frame 732, 832, 932 which is provided between the handles 731, 831, 931 and the valve bodies 734, 834, 934, and which is empty and has a rectangular plate shape through which the shaft SH penetrates, and a width direction from the lower side of the frame 732, 832, 932. Lower guides 736, 836, 936 extending laterally, upper guides 733, 833, 933 spaced upward from the lower guides 736, 836, 936 and disposed inside the frames 732, 832, 932 and penetrating the shaft SH, and the upper guides 733, 833, 933 and It includes a plurality of connecting bars 735, 835, 935 connecting between the lower guides 736, 836, 936.

In the above, the frame 732, 832, 932 is provided on the thickness surface of the dynamic pressure bearing 400 for rotatably supporting the shaft (SH), the dynamic pressure bearing device 400 is a ring-shaped bearing body 410 And a plurality of recesses 490 formed at predetermined intervals in the circumferential direction on the inner surface of the bearing body 410, a piezoelectric element part 430 provided in the recess 490, and the piezoelectric element part. An elastic pad 460 is moved forward and backward by 430 to be in contact with the shaft SH. The elastic pad 460 is filled with a compressive fluid, and a bottom surface of the recess 490 is circumferentially formed. And a pair of bases 420 disposed to be spaced apart from each other, and the piezoelectric element units 430 are provided on the base 420, respectively, and a power supply wiring is provided through the base 420. Connected to the unit 430, and of the piezoelectric element unit 430 The pressing part 500 is provided at the end thereof, and the pressing part 500 is moved forward and backward by the piezoelectric element part 430 to adjust the pressure of the elastic pad 460 and is supported in the recess 490. The disk 470 is provided in the horizontal direction, an opening is formed in the support disk 470, the pressing portion 500 penetrates, and the elastic pad 460 is an elastic pad body 461 filled with a compressive fluid. And protrusion protrusions 462 protruding from both sides of the elastic pad body 461, and mounting grooves 491 are formed at both sides of the recess 490 to insert the protrusion protrusions 462. do.

In the above, the pressing part 500 is spaced apart from the first pressing part 510 disposed on the side of the elastic pad 460 in the direction of the piezoelectric element part 430 from the first pressing part 510. And a second pressing unit 520, and a first absorbing unit 530 disposed between the first pressing unit 510 and the second pressing unit 520, and the first pressing unit 510 includes: A first pressing unit body 511 in contact with the elastic pad 460, including a first flat portion (5111) in a central portion of the side of the second pressing portion 520 direction of the first pressing unit 511. Is formed, a plurality of first grooves 5112 are formed in the first flat portion 5111 to be recessed with a specific curvature, and a second pressing part 520 is disposed on the radially outer side of the first flat portion 5111. The first stepped part 5113 is formed to protrude in the direction of the step () and the second stepped part protruding in the direction of the second pressing unit 520 on the radially outer side of the first stepped part (5113) (5114) brother The second pressing part 520 may include a second pressing part main body 521 inserted into the second stepping part 5114 and contacting the first stepping part 5113. A second flat portion 5211 is formed in the center portion of the main body 521 in the side of the first pressing part 510 in the direction, and the second groove portion 5212 recessed with a specific curvature in the second flat portion 5211. Is formed, the first absorbing portion 530 is disposed between the first flat portion (5111) and the second flat portion (5211), the first absorbing portion 530 is a plurality of elastic balls 531 And a ring-shaped holder 532 into which the elastic ball 531 is inserted, and a connection bar 533 that connects the holder 532, wherein the elastic ball 531 has the first recess portion. It is disposed between the 5111 and the second recess 5211.

In the above, a plate-shaped base 540 is disposed in an inner space formed of the connection bar 533, and an elastic connection part 550 is connected between the base 540 and the connection bar 533, and the base ( A second absorbing part 600 is disposed on the upper and lower surfaces of the 540 to contact the first flat part 5111 and the second flat part 5211, respectively, and the second absorbing part 600 is wound in a specific direction. The second upper absorbent portion 600A has a spiral shape, the same shape, and includes a second upper absorbent portion 600A and a second lower absorbent portion 600B disposed on upper and lower surfaces of the base 540, respectively. ) And the second lower absorbing part 600B have a symmetrical shape and are wound in opposite directions, and the second absorbing part 600 is formed in a spiral shape with the first spiral part 610 and the second spiral. And an eleventh fixing part including the part 620 and the first spiral part 610 fixed to the first flat part 5111 or the second flat part 5112. A first elastic bar disposed in a spiral form between the 611, the twelfth fixed bar 612 fixed to the base 540, and the eleventh fixed bar 611 and the twelfth fixed bar 611. And a second fixed portion 620 that is fixed to the first flat portion 5111 or the second flat portion 5211 and spaced apart from the eleventh fixed bar 611 by a predetermined interval. A second elastic bar disposed in a spiral form between the bar 621, the twenty-second fixed bar 622 fixed to the base 540, and the twenty-first fixed bar 621 and the twenty-second fixed bar 622. 623, wherein the first elastic bar 613 is wound in the same direction as the second elastic bar 623, and the second elastic bar 623 is disposed in the spiral of the first elastic bar 613. .

The one end of the eleventh fixing bar 611A and the twenty-first fixing bar 621A of the second upper absorbing part 600A of the second absorbing part 600 is fixed to the first flat part 5111. One end portions of the eleventh fixing bar 611B and the twenty-first fixing bar 621B of the second lower absorbing part 600B are fixed to the second flat part 5112, and the second absorbing part 600B is the first of the second absorbing parts 600B. One end of the twelfth fixed bar 612A and the twenty-second fixed bar 622A of the second upper absorbent part 600A is fixed to the upper surface of the base 540, and the twelfth fixed bar of the second lower absorbent part 600B ( 612B and one end of the twenty-second fixed bar 621B are fixed to the bottom of the base 540, and the eleventh fixed bar 611A and the eleventh of the second upper absorbent part 600A are disposed on an upper surface of the base 540. An upper moving groove 542 is formed to move the 21 fixing bar 621A, and the eleventh fixing bar 611A and the 21 st fixing bar 621A move to form the first spiral part 610 and the second spiral. In the direction in which the portion 620 is wound or unwound The upper movement groove 542 is formed, and the bottom movement of the eleventh fixed bar 611A and the twenty-first fixed bar 621A of the second lower absorbing part 600B is moved on the bottom surface of the base 540. A groove 543 is formed, and the eleventh fixed bar 611B and the twenty-first fixed bar 621B move to move or unwind the first spiral portion 610 and the second spiral portion 620. Lower moving grooves 543 are formed.

The first elastic connecting part 630 provided between the first elastic bar 613 and the second elastic bar 623 of the second absorbing part 600 further includes the first elastic connecting part 630. ) Is a first fixing plate 631 fixed to the first elastic bar 613, and a second fixing plate 632 provided on the second elastic bar 623 and installed to face the first fixing plate 631. And an elastic ball 633 provided between the first fixing plate 631 and the second fixing plate 632, and the first fixing plate 631 has a plate shape to the first elastic bar 613. A plurality of recesses 6312 formed on side surfaces of the first fixing plate body 6311 and the first fixing plate body 6311 which are fixed and recessed at a predetermined curvature, and the recesses 6312. It is provided in a pair inside, is provided in an arc shape having a specific curvature at the bottom of the groove portion 6312 and symmetrical in the longitudinal direction of the first fixing plate main body 6311 The elastic ball 633 includes a holder 6313 inserted therein, and the second fixing plate 632 has a plate shape and has a second fixing plate body 6321 fixed to the second elastic bar 623. A plurality of grooves 6322 formed on the side surface of the first fixing plate 631 in the direction of the first fixing plate 631 and grooved at a predetermined curvature, and provided in a pair inside the grooves 6322. It includes a holder (6323) symmetrical in the longitudinal direction of the fixing plate main body (6321) is provided in an arc shape having a specific curvature at the bottom of the groove portion 6322, the elastic ball 633 is inserted therein, the second Further comprising a second elastic connecting portion 640 provided between the first elastic bar 613 and the second elastic bar 623 of the absorbent portion 600, the second elastic connecting portion 640 is the same shape and mutual And a symmetrical second absorbing portion left portion 600A and a second absorbing portion right portion 600B, wherein the second elastic connecting portion 640 has a first spiral The first connecting bar 641 extending from the first elastic bar 613 of the part 610 in the direction of the second spiral part 620 and the first spiral part 610 of the first connecting bar 641. After extending in the longitudinal direction, the first support portion 612 is bent in the direction of the second spiral portion 620 and the direction of the first spiral portion 610 in the second elastic bar 623 of the second spiral portion 620 A second connection bar 643 extending in the direction of the second spiral bar 620 from the second connection bar 643, and extending in a direction opposite to the first support part 612, and then The second support part 644 bent in the direction of the one spiral part 610, and a spring part 645 disposed between the first support part 642 and the second support part 644.

The features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings.

Prior to this, the terms or words used in the present specification and claims should not be interpreted in the ordinary and dictionary sense, and the inventors may appropriately define the concept of terms in order to best explain their own invention. It should be interpreted as meaning and concept corresponding to the technical idea of the present invention on the basis of the principle.

According to the present invention described above, there is an effect that the production time can be shortened and the production efficiency can be improved.

1 is a perspective view of a prefabricated pressure vessel unit according to an embodiment of the present invention,
Figure 2 is an exploded perspective view of the prefabricated pressure vessel unit according to an embodiment of the present invention,
Figure 3 is an enlarged view showing an enlarged valve portion of the prefabricated pressure vessel unit according to an embodiment of the present invention,
4 is a schematic view showing a coupling relationship between a shaft and a hydrodynamic bearing of a prefabricated pressure vessel unit according to an embodiment of the present invention;
5 is a schematic view showing a dynamic bearing of the prefabricated pressure vessel unit according to an embodiment of the present invention,
6 is a schematic view showing a general dynamic bearing;
7 is a schematic view showing a dynamic bearing of a prefabricated pressure vessel unit according to an embodiment of the present invention;
8 is a schematic view showing the support disk and the pressing portion of the dynamic bearing of the prefabricated pressure vessel unit according to an embodiment of the present invention,
9 and 10 are combined and separated views showing the pressing portion of the prefabricated pressure vessel unit according to an embodiment of the present invention,
11 is a perspective view showing a first absorbing part of the assembled pressure vessel unit according to an embodiment of the present invention;
12 is a schematic view showing a second absorbing part of the assembled pressure vessel unit according to an embodiment of the present invention;
13 is a schematic view showing a second upper absorbent portion of a prefabricated pressure vessel unit according to an embodiment of the present invention;
14 is a schematic view showing a second lower absorbent portion of a prefabricated pressure vessel unit according to an embodiment of the present invention;
15 is a schematic view showing a first elastic connection of a prefabricated pressure vessel unit according to an embodiment of the present invention;
16 is a schematic view showing a second elastic connection of the assembled pressure vessel unit according to the embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. In this process, the thickness of the lines or the size of the components shown in the drawings may be exaggerated for clarity and convenience of description.

In addition, terms to be described below are terms defined in consideration of functions in the present invention, which may vary depending on the intention or convention of a user or an operator. Therefore, the definitions of these terms should be made based on the contents throughout the specification.

In addition, the following examples are not intended to limit the scope of the present invention, but merely illustrative of the components set forth in the claims of the present invention, which are included in the technical spirit throughout the specification of the present invention and constitute the claims Embodiments that include a substitutable component as an equivalent in the element may be included in the scope of the present invention.

Pressure vessel unit 10 according to an embodiment of the present invention, as shown in Figures 1 to 3, the upper cap 200 and the lower cap 300 is provided detachably at the upper and lower portions of the pressure vessel 100, respectively. And, it is provided in the pressure vessel 100 or the upper cap 200 or the lower cap 300 includes an entrance (EV) to the fluid entering and exit.

The pressure vessel 100 has a hollow shape and the upper and lower portions include an open pressure vessel body 110, which can apply the above-described prior art, and thus detailed description and illustration thereof will be omitted.

In addition, the pressure vessel 100 may be provided with a monitoring window 300 of a transparent material to check the water level.

The upper cap 200 penetrates the upper cap body 210 having a plate shape covering the upper surface opening portion 120 of the pressure vessel body 110, the upper cap body 210, and the upper surface opening portion ( The first fixing sphere F1 is fixed to the thickness surface 121 of the 120. In this case, the first fixing tool F1 includes a fixing bolt F1-1 and a washer F1-2 installed on the fixing bolt F1-2. By the configuration of the fastener F1, the loosening of the fastener can be prevented.

In addition, the upper cap 200 can be attached to the pressure vessel 100 in an assembling manner by the fasteners F1, and thus the upper cap 200 can be attached and detached. By this invention, the production time of a pressure vessel can be shortened.

Similarly, the lower cap 300 penetrates the lower cap body 310 having a plate shape covering the lower surface opening 130 of the pressure vessel body 110 and the lower cap body 310, and opens the lower surface. And a second fixing tool F2 fixed to the thickness surface 131 of the part 130. In this case, the second fixing sphere F2 may also include a fixing bolt and a washer.

Meanwhile, fixing holes 121a and 131a are formed in the thickness surface 121 of the upper surface opening part 120 and the thickness surface 131 of the lower surface opening part 130 to insert and fix the fixtures F1 and F2. Can be.

In addition, a through hole (not shown) is also formed in the upper cap body 210 and the lower cap body 310 and inserted into the fixing holes 121a and 131a of the thickness surfaces 121 and 131 after the fixing tool penetrates. Can be fixed.

A ring-shaped upper gasket GA1 provided between the upper cap body 210 and the upper opening surface 120 of the pressure vessel body 110, and the lower cap body 310 and the pressure vessel body 110. Including the ring-shaped lower gasket GA2 provided between the lower opening surfaces 130 may improve the sealing performance of the pressure vessel 100.

In this case, through holes (not shown) are formed in the upper gasket GA1 and the lower gasket GA2 to allow the fixtures F1 and F2 to pass therethrough.

The entrance part EV allows the fluid to be introduced or discharged to the pressure vessel as described above. The access unit EV includes a first entry part 700 provided on an upper surface of the pressure vessel 100, a second entry portion 800 provided on a bottom surface of the pressure vessel 100, and the pressure vessel. It includes a third access portion 900 provided on the side of the (100).

The first entry part 700 is provided at one side of the flow pipe 710 communicating with the inside of the pressure vessel 100 by passing through the upper cap 200, and at one side of the flow pipe 710. It includes a valve unit 730. That is, when the first access part 700 is used to inject the fluid into the pressure vessel 100, the fluid is introduced into the pressure vessel 100 from the outside through the flow pipe 710. At this time, the fluid is interrupted by the valve unit 730.

In addition, the second access portion 800 is provided with a flow pipe 810 which communicates with the inside of the pressure vessel 100 through the lower cap 300, and is provided at one side of the flow pipe 810 to allow fluid to enter and exit. It includes a valve unit 830 to control, for example, the second access portion 800 may be used for the purpose of the fluid is discharged to the outside.

In addition, the third access unit 900 is provided with a flow pipe 910 which passes through the pressure vessel 100 side surface and communicates with the inside of the pressure vessel 100, and is provided at one side of the flow pipe 910, It includes a valve unit 930 to control the entry and exit, for example, the third entry portion 900 may be used for another fluid input.

Of course, it is also possible to have additional entrances as shown in Figures 1 and 2. That is, the fourth entrance part 1000 and the fifth entrance part 1100 may be included in the side surface of the pressure vessel 100, and the same configuration may be used.

The valve parts 730, 830, and 930 are for controlling the flow of fluid as described above, and are provided in the valve bodies 734, 834, 934 and the shafts SH for driving the valve bodies 734, 834, 934 and the shafts SH. Handles 731, 831, and 931. The valve bodies 734, 834, 934 are provided with a well-known fluid blocking part therein and are rotated by the shaft SH to interrupt the flow of the fluid.

The handles 731, 831 and 931 are included to easily rotate the shaft SH.

In addition, a frame 732, 832, 932, an upper guide 733, 833, 933, and a lower guide 736, 836, 936 are provided between the handles 731, 831, 931 and the valve bodies 734, 834, 934.

The frames 732, 832, and 932 are rectangular plate-shaped and have an empty inside. The shaft SH penetrates the frames 732, 832 and 932.

The lower guides 736, 836, and 936 extend in both width directions from the lower side of the frames 732, 832, and 932, and may have an ellipse shape as shown.

In this case, the upper guides 733, 833, and 933 are spaced upward from the lower guides 736, 836, and 936, disposed inside the frames 732, 832, and 932, and the shaft SH penetrates. In this case, the upper guides 733, 833, and 933 may have an ellipse shape similar to the lower guides 736, 836, and 936. However, the upper guides 733, 833, and 933 are different from each other in the frames 732, 832, and 932.

A plurality of connection bars 735, 835, 935 are provided between the upper guides 733, 833, 933 and the lower guides 736, 836, 936 to interconnect each other. By this configuration, the shaft SH may be provided in an accurate posture and position.

Meanwhile, as shown in FIGS. 1 and 2, a fixing flange 720 is provided between the flow pipe 710 and the valve part 730 of the first access part 700 to provide the valve part 730 and the flow pipe ( 710 may be connected, and a separate fixing flange 740 may be provided at the valve unit 730 to connect with an external pipe. This may be applied to other entrances in the same manner, and redundant description thereof will be omitted.

On the other hand, it is provided on the thickness surface of the frame (732,832,932) includes a dynamic pressure bearing 400 for rotatably supporting the shaft (SH). This may cause vibration when the shaft SH rotates due to a poor installation or external vibration when the shaft SH rotates. The vibration may occur in the entrance part EV by the vibration, and thus the dynamic bearing 400 is used to prevent the vibration.

As shown in FIGS. 4 to 15, the dynamic pressure bearing device 400 includes a ring-shaped bearing body 410 and a plurality of grooves formed at regular intervals in the circumferential direction on the inner surface of the bearing body 410. 490, a piezoelectric element portion 430 provided in the recess 490, and an elastic pad 460 advancing back and forth by the piezoelectric element portion 430 and contacting the shaft SH. The compressive fluid is filled in the elastic pad 460.

That is, the size of the piezoelectric element portion 430 is increased or decreased by the power supplied to the piezoelectric element portion 430 so that the piezoelectric element portion 430 moves forward and backward, thereby moving the elastic pad 460 toward the shaft SH. Or retreat. At this time, a compression fluid such as air is filled in the elastic pad 460 so that the elastic pad 460 elastically presses the shaft SH. In this configuration, when the shaft SH vibrates according to rotation, the vibration is reduced by the elastic pad 460.

On the other hand, the technique itself which reduces the vibration of a shaft by the said piezoelectric element part is known widely.

The technique shown in Fig. 5 is described in Japanese Patent No. 521047, where the piezoelectric element portion is moved forward and backward to suppress the vibration of the shaft (spindle). This technique is described in detail in the above-mentioned Japanese Patent No. 521047, so detailed description and illustration thereof are omitted.

The present invention uses an elastic pad 460 filled with a pressurized fluid unlike the prior art.

That is, the vibration of the shaft is measured by the elastic pad 460 as a pressure variation or by a separate sensor (not shown). When the vibration of the shaft is sensed, the vibration is reduced by the action of the piezoelectric element portion as described above by the controller. On the other hand, the vibration detection of the shaft and the piezoelectric element portion itself is described in detail in the above-described prior art, so the description and illustration thereof are omitted.

Meanwhile, FIG. 6 is an enlarged portion of the shaft SH and the dynamic bearing 400 in FIG. 4, and the shaft SH and the elastic pad 460 are expressed in a straight line in order to clearly express the technical contents.

Meanwhile, as illustrated in FIG. 7, the bottom surface of the recess 490 includes a pair of bases 420 disposed in the circumferential direction and spaced apart from each other by a predetermined distance. 430 are provided, respectively, and a power supply wiring is connected to the piezoelectric element unit 430 through the base 420. The power supply wiring is connected to the control unit CON and controls the piezoelectric element unit 430 by the control unit CON. That is, when the generated vibration is greater than or equal to the set range, the piezoelectric element 430 is moved forward and backward by the control unit CON, whereby the elastic pad 460 presses the shaft SH to reduce the vibration.

On the other hand, the pressing portion 500 is provided at the end of the piezoelectric element portion 430, the pressing portion 500 is moved forward and backward by the piezoelectric element portion 430 to adjust the pressure of the elastic pad 460. . In addition, a support disk 470 is provided in the groove portion 490 in the horizontal direction, and an opening is formed in the support disk 470 so that the pressing part 500 penetrates.

As shown in FIG. 8, the support disk 470 includes a support disk body 471 in the shape of a plate and having an opening 472 formed therein. The pressing part 500 penetrates the opening part 472 to press the elastic pad.

An elastic connection part 480 is provided between the opening part 472 and the pressing part 500 to prevent a collision between the opening part 472 and the pressing part 500.

The elastic connecting portion 480 is provided on the opening portion 472 side and has a circular arc-shaped first support portion 481 and the pressing portion 500 side is provided with a specific circumferential length and arc-shaped And a second support portion 482. A first leaf spring 483 is installed on the first support portion 481, and a second leaf spring 484 is installed on the second support portion 482. The first plate spring 483 is bent to protrude in the direction of the second support part 482, and the second plate spring 484 is bent to protrude in the direction of the first support part 481.

A semi-circular first holder 485 is formed on the side surface of the first plate spring 483 in the direction of the second plate spring 484, and on the side surface of the second plate spring 484 in the direction of the first plate spring 483. A second holder 486 symmetrical with the first holder 485 is formed. An elastic ball 487 is disposed between the first holder 485 and the second holder 486. With this configuration, even when the opening portion 472 and the pressing portion 500 are close to each other, the elastic ball 487 is primarily absorbed by the elastic deformation of the first leaf spring 483 and the second leaf spring 484. Is absorbed secondarily by compression deformation.

Meanwhile, as shown in FIG. 7, the elastic pad 460 includes an elastic pad body 461 filled with a compressive fluid, and protruding protrusions 462 protruding from both sides of the elastic pad body 461. Mounting grooves 491 are formed at both sides of the groove portion 490 so that the protruding protrusion 462 is inserted to stably install the elastic pad 460.

On the other hand, as shown in Figure 7 the base 420 is provided in a pair and spaced apart a predetermined interval. A support block 450 is installed between the base 420 and the recess 490 to support the piezoelectric element unit 430. As shown, the support block 450 is provided between the second support block 452 provided between the wall of the recess 490 and the piezoelectric element portion 430 and the pair of piezoelectric element portions 430. The first support block 451 is included.

Both side surfaces of the first support block 451 protrude so that the base 420 and the piezoelectric element part 430 are stably supported. One side of the second support block 452 is in close contact with the inner surface of the recess 490 and the other side thereof protrudes to stably support the base 420 and the piezoelectric element 430.

As shown in FIGS. 9 to 16, the pressing unit 500 includes a first pressing unit 510 disposed on a side surface of the elastic pad 460 (refer to FIG. 7, which is the same below), and the first pressing unit. Between the second pressure unit 520 and the first pressure unit 510 and the second pressure unit 520 which are spaced apart from each other in the direction of the piezoelectric element unit 430 (see FIG. 7, below) in 510. It includes a first absorbing portion 530 disposed in.

That is, the pressing unit 500 includes a first pressing unit 510 and a second pressing unit 520 as described above, the first pressing unit 510 is disposed in the direction of the elastic pad 460 The second pressing part 520 is disposed in the direction of the piezoelectric element part 430. The first absorbing part 530 is provided between the first pressing part 510 and the second pressing part 520 to absorb the shock generated therebetween.

The first pressing part 510 includes a first pressing part main body 511 in contact with the elastic pad 460, and the center of the side of the first pressing part main body 511 in the direction of the second pressing part 520. A part of the first flat portion 5111 is formed. The first flat part 5111 is provided with a plurality of first recesses 5112 that are recessed with a specific curvature. Further, a first stepped part 5113 is formed on the radially outer side of the first flat part 5111 to protrude in the direction of the second pressing part 520 to form a step, and the radius of the first stepped part 5113 is formed. A second stepped part 5114 is formed to protrude toward the second pressing part 520 to form a step outside the direction. That is, the first stepped part 5113 protrudes toward the second pressing part 520 on the radially outer side of the first flat part 5111. The second step portion 5114 protrudes from the radially outer side of the first step portion 5113.

The second pressing part 520 is inserted into the second stepping part 5114 and includes a second pressing part main body 521 contacting the first stepping part 5113. A second flat portion 5211 is formed at a central portion of a side of the second pressing part main body 521 in the direction of the first pressing part 510. The second flat portion 5211 is formed with a second groove portion 5212 grooved at a specific curvature.

In this case, the first absorption part 530 is disposed between the first flat part 5111 and the second flat part 5211 to absorb the shock as described above.

The first absorbing part 530 has a plurality of elastic balls 531, a ring-shaped holder 532 into which the elastic balls 531 are inserted, and a connection bar 533 that connects the holders 532. The elastic ball 531 is disposed between the first groove portion 5111 and the second groove portion 5211. The elastic ball 531 absorbs the impact.

The connecting bar 533 is arranged in a closed shape as shown. In the case of the embodiment shown in Figure 10 the holder 532 may be provided in a shape that is disposed on the corner of the rectangle. A connection bar 533 is provided between the holders 532 so that the connection bar 533 is disposed in each side direction of a rectangular shape.

An inner space formed of the connection bar 533, that is, in the embodiment, a plate-shaped base 540 is disposed in a rectangular inner space, and a spring-like elasticity is disposed between the base 540 and the connection bar 533. The connection part 550 is connected.

The second absorbing part 600 is disposed on the upper and lower surfaces of the base 540 to be in contact with the first flat part 5111 and the second flat part 5211, respectively.

The second absorbent part 600 has a spiral shape wound in a specific direction, and has the same shape and has a second upper absorbent part 600A and a second lower absorbent part disposed on upper and lower surfaces of the base 540, respectively. 600B). The second upper absorbing part 600A and the second lower absorbing part 600B have a symmetrical shape and are wound in opposite directions.

It demonstrates with reference to FIG. 13 and FIG. FIG. 13 is a view of the upper side of the first pressing unit 510 viewed from the lower side (view 3), as shown in FIGS. 9 and 10. The base 540 and the first pressing unit main body 511 are broken lines. The second upper absorbing part 600A is shown and is disposed on the upper surface of the base 540 of the second absorbing part 600.

FIG. 14 is a view showing the downward direction from the upper side of the first pressing part 510 as shown in FIGS. 9 and 10. The base 540 and the second pressing part main body 521 are indicated by a broken line, and the second pressing part is shown in FIG. The second lower absorbing part 600B disposed on the bottom surface of the base 540 is shown in the absorbing part 600.

As shown in FIGS. 13 and 14, the second upper absorbent part 600A has a long shape in a counterclockwise direction, and the second lower absorbent part 600B has a symmetrical shape and a gimjin shape in a clockwise direction.

The second upper absorbing part 600A and the second lower absorbing part 600B are disposed to have the same shape or symmetry, and the second upper absorbing part 600A shown in FIGS. 12 and 13 will be described as an example.

The second absorbing part 600 includes a first spiral part 610 and a second spiral part 620 arranged in a spiral shape.

The first spiral portion 610 may include an eleventh fixed bar 611 fixed to the first flat portion 5111 or the second flat portion 5112, and a twelfth fixed bar 612 fixed to the base 540. ) And a first elastic bar 613 disposed in a spiral form between the eleventh fixed bar 611 and the twelfth fixed bar 611.

Similarly, the second spiral part 620 is fixed to the first flat part 5111 or the second flat part 5211 and the twenty-first fixed bar 621 spaced at a predetermined interval from the eleventh fixed bar 611. And a twenty-second fixed bar 622 fixed to the base 540, and a second elastic bar 623 disposed in a spiral form between the twenty-first fixed bar 621 and the twenty-second fixed bar 622. do.

In this case, the first elastic bar 613 is wound in the same direction as the second elastic bar 623 and the second elastic bar 623 is disposed inside the spiral of the first elastic bar 613.

One end of the eleventh fixing bar 611A and the twenty-first fixing bar 621A of the second upper absorbing part 600A of the second absorbing part 600 is fixed to the first flat part 5111, and the second One end of the eleventh fixing bar 611B and the twenty-first fixing bar 621B of the lower absorbing part 600B is fixed to the second flat part 5112,

One end of the second fixing bar 612A and the second fixing bar 612A of the second upper absorbing part 600A of the second absorbing part 600 is fixed to the upper surface of the base 540, and the second lower absorbing part 600A is absorbed. One end of the twelfth fixed bar 612B and the twenty-second fixed bar 621B of the part 600B is fixed to the bottom of the base 540.

That is, in the case of the second upper absorbing part 600A disposed on the upper surface of the base 540, the eleventh fixing bars 611 and 611A of the first spiral part 610 may have the first flat part of the upper fixing part 510. 5111, and the twelfth fixing bars 612 and 612A are fixed to the upper surface of the base 540. Further, the twenty-first fixed bars 621 and 621 A of the second spiral part 620 are fixed to the first flat part 5111 of the upper fixed part 510, and the twenty-second fixed bars 622 and 622 A are the base 540. It is fixed on the upper surface.

In addition, in the case of the second upper absorbing part 600B disposed on the bottom surface of the base 540, the eleventh fixing bars 611 and 611B of the first spiral part 610 may be formed of the first flat part of the lower fixing part 520. 5211, and the twelfth fixing bars 612 and 612B are fixed to the bottom of the base 540. Further, the twenty-first fixed bars 621 and 621B of the second spiral part 620 are fixed to the first flat part 5211 of the lower fixed part 520, and the twenty-second fixed bars 622 and 622B are the base 540. It is fixed to the bottom.

In this case, an upper moving groove 542 for moving the eleventh fixing bar 611A and the twenty-first fixing bar 621A of the second upper absorbing part 600A is formed on the upper surface of the base 540. The upper moving groove 542 is formed in a direction in which the first and second spiral parts 610 and 620 are wound or unwound by moving the eleventh fixed bar 611A and the twenty-first fixed bar 621A. .

In addition, a bottom moving groove 543 for moving the eleventh fixing bar 611A and the twenty-first fixing bar 621A of the second lower absorbing part 600B is formed on the bottom of the base 540. The lower moving groove 543 is formed in a direction in which the first and second spiral parts 610 and 620 are wound or unwound by moving the eleventh fixed bar 611B and the twenty-first fixed bar 621B. .

For example, when the upper fixing part 510 is rotated in the direction 1 (counterclockwise direction) by contact with the elastic pad as shown in FIGS. 9 and 10, the second upper part absorbing part as shown in FIG. 13. The eleventh fixing bar 611 fixed to the first pressing part main body 511 of the part 600A also rotates in the direction 1 (counterclockwise direction). In this case, an upper moving groove 542 is formed on the base 540 so that the lower portion of the eleventh fixing bar 611 moves in the direction 1 on the upper moving groove 542. In addition, the first elastic bar 613 is wound while the eleventh fixing bar 611 moves in a counterclockwise direction. In addition, the second elastic bar 623 is wound while the twenty-first fixed bar 621 also moves counterclockwise. By this action, even if the first spiral part 610 and the second spiral part 620 are wound and the upper fixing part 510 is rotated by an angle, the first spiral part 610 and the second spiral part 620 may be returned to their original positions.

On the contrary, as shown in FIGS. 9 and 10, when the upper fixing part 510 rotates in the direction 2 (clockwise) by contact with the elastic pad, the first pressing part main body 511 as shown in FIG. 13. The eleventh fixing bar 611 and the twenty-first fixing bar 621 of the second upper absorbing part 600A fixed to the plate also rotate in direction 2 (clockwise). In this case, an upper moving groove 542 is formed on the base 540 so that the lower portion of the eleventh fixing bar 611 moves in the direction 2 on the upper moving groove 542. At this time, since the first screw part 610 and the second screw part 620 are wound in a counterclockwise direction, when the eleventh fixing bar 611 and the twenty-first fixing bar 621 move clockwise, the first screw part 610 is wound. 610 and the second screw portion 620 is released.

However, as shown in FIG. 14, the second lower absorbing part 600B installed at the bottom of the base 540 is provided with the eleventh fixing bar 511 and the twenty-first fixing bar 521 in the lower groove 543. As the base 540 is rotated, the eleventh fixed bar 511 and the twenty-first fixed bar 521 are wound in a clockwise direction to be wound.

In other words, when the upper fixing part 510 rotates counterclockwise, the second upper absorbing part 600A is wound so that the upper fixing part 510 returns to its original position, and the upper fixing part 510 is clockwise. The lower lower absorbing part 600B is wound to rotate, so that the upper fixing part 510 returns to its original position.

12 and 15, further includes a first elastic connection part 630 provided between the first elastic bar 613 and the second elastic bar 623 of the second absorbing part 600. do. The first elastic connection part 630 is provided on the first fixing plate 631 and the second elastic bar 623 fixed to the first elastic bar 613 to face the first fixing plate 631. And a second fixing plate 632 to be installed, and an elastic ball 633 provided between the first fixing plate 631 and the second fixing plate 632.

The first fixing plate 631 has a plate shape and is formed on a side of a first fixing plate body 6311 and a second fixing plate 632 of the first fixing plate body 6311 fixed to the first elastic bar 613. And a plurality of grooves 6312, which are recessed at a predetermined curvature, and are provided as a pair inside the grooves 6312, are symmetrical in the longitudinal direction of the first fixing plate body 6311, and at the bottom of the grooves 6312. It is provided in a circular arc shape having a specific curvature includes a holder (6313) is inserted into the elastic ball 633, the second fixing plate 632 has a plate shape fixed to the second elastic bar (623) Among the second fixing plate body 6321 and the second fixing plate body 6321, a plurality of grooves 6322 formed on side surfaces of the first fixing plate 631 and grooved with a predetermined curvature, and the grooves 6322 inside Is provided in a pair, and is symmetrical in the longitudinal direction of the second fixing plate main body 6321 and of the groove portion 6322 It is provided in an arc shape having a certain curvature in the shut the elastic ball 633 is and a holder (6323) to be inserted therein.

That is, when the first elastic bar 613 is rotated to move the first fixing plate 631, the first fixing plate 631 moves, and as a result, the elastic ball 633 is deformed. At this time, the elastic ball 633 is returned to its original shape by elasticity, and thus the first fixing plate 631 is also returned to its original position.

12 and 16, the second elastic connecting part 640 is provided between the first elastic bar 613 and the second elastic bar 623 of the second absorbing part 600. do. The second elastic connection part 640 includes a second absorbing part left side portion 600A and a second absorbing part right side portion 600B which are identical in shape and symmetrical to each other.

In this case, the second elastic connecting portion 640 is a first connecting bar 641 extending in the direction of the second spiral portion 620 from the first elastic bar 613 of the first spiral portion 610, and the first A first support part 612 extending in the longitudinal direction of the first spiral part 610 from the connection bar 641, and then bent in a direction of the second spiral part 620, and a second of the second spiral part 620; A second connecting bar 643 extending from the elastic bar 623 in the direction of the first spiral portion 610, and extending from the second connecting bar 643 in the longitudinal direction of the second spiral portion 620; After extending in the opposite direction to the first support portion 612, a spring disposed between the second support portion 644 bent in the direction of the first spiral portion 610, and between the first support portion 642 and the second support portion 644 Section 645.

That is, even when the first elastic bar 613 is moved, the shock may be absorbed by the second elastic connecting portion 640.

Although the present invention has been described in detail through specific examples, it is intended to describe the present invention in detail, and the present invention is not limited thereto, and should be understood by those skilled in the art within the technical spirit of the present invention. It is obvious that the modification and improvement are possible.

All simple modifications and variations of the present invention fall within the scope of the present invention, and the specific scope of protection of the present invention will be apparent from the appended claims.

100: pressure vessel 110: pressure vessel body
200: upper cap 300: lower cap
400: dynamic pressure bearing 410: bearing body
420: base 430: piezoelectric element portion
460: elastic pad 490: groove
500: pressurizing unit 510: first pressurizing unit
520: second pressure unit 530: first absorption unit
600: second absorption part 700: first entrance part
800: second entrance 900: third entrance

Claims (8)

The upper cap 200 and the lower cap 300, which are detachably provided at upper and lower portions of the pressure vessel 100, and the pressure vessel 100, the upper cap 200, or the lower cap 300, are provided with fluid. Including the entrance and exit (EV),
The pressure vessel 100 has a hollow shape and the upper and lower portions include an open pressure vessel body 110,
The upper cap 200 penetrates the upper cap body 210 having a plate shape covering the upper surface opening portion 120 of the pressure vessel body 110, the upper cap body 210, and the upper surface opening portion ( It includes a first fixing sphere (F1) is fixed to the thickness surface 121 of 120,
The lower cap 300 penetrates the lower cap body 310 having a plate shape covering the lower surface opening 130 of the pressure vessel body 110, and the lower cap body 310, and the lower opening portion ( Including a second fixture (F2) is fixed to the thickness surface 131 of 130,
The upper cap 200 and the lower cap 300 is provided detachably to the pressure vessel body 110,
The access unit EV may include a first access part 700 provided on an upper surface of the pressure vessel 100, a second access portion 800 provided on a lower surface of the pressure vessel 100, and the pressure vessel. It includes a third access portion 900 provided on the side of the (100),
The first entry part 700 is provided on one side of the flow pipe 710 communicating with the inside of the pressure vessel 100 through the upper cap 200 and the flow pipe 710 to intercept the flow of fluid. It includes a valve unit 730,
The second access part 800 is provided at one side of the flow pipe 810 communicating with the inside of the pressure vessel 100 through the lower cap 300 and on the flow pipe 810 to control the flow of fluid. It includes a valve unit 830,
The third entry part 900 is provided with a flow pipe 910 that communicates with the inside of the pressure container 100 through the side of the pressure container 100, and is provided at one side of the flow pipe 910 to allow fluid to enter and exit. It includes a valve unit 930 to regulate,
The valve parts 730, 830, 930 are provided in the valve bodies 734, 834, 934 and the shafts SH driving the valve bodies 734, 834, 934, handles 731, 831, 931, and handles 731, 831, 931 and the handles 731, 831, 931. Frames 732, 832 and 932, which are provided between the valve bodies 734, 834 and 934, and which are empty inside and which have a rectangular plate shape through which the shaft SH penetrates, are provided inside the frames 732, 832 and 932 and the shaft SH penetrates and interlocks. And stoppers 733, 833, and 933 which are caught by the frames 732, 832 and 932 when rotating.
It is provided on the thickness surface of the frame (732, 832, 932) includes a dynamic pressure bearing 400 for rotatably supporting the shaft (SH),
The dynamic pressure bearing device 400 includes a ring-shaped bearing body 410, a plurality of grooves 490 formed on the inner surface of the bearing body 410 at regular intervals in a circumferential direction, and the grooves 490. A piezoelectric element portion 430 and an elastic pad 460 advancing back and forth by the piezoelectric element portion 430 and in contact with the shaft SH,
A compressive fluid is filled in the elastic pad 460,
The bottom surface of the groove portion 490 is provided with a pair of bases 420 disposed in the circumferential direction and spaced apart by a predetermined interval, and the piezoelectric element portions 430 are provided on the base 420, respectively, and the base A power supply wiring is connected to the piezoelectric element unit 430 through 420.
The pressing part 500 is provided at the end of the piezoelectric element part 430, and the pressing part 500 is moved forward and backward by the piezoelectric element part 430 to adjust the pressure of the elastic pad 460.
A support disk 470 is provided in the groove portion 490 in the horizontal direction, and an opening is formed in the support disk 470 to penetrate the pressing part 500.
The elastic pad 460 includes an elastic pad body 461 filled with a compressive fluid, and protruding protrusions 462 protruding from both sides of the elastic pad body 461.
Prefabricated pressure vessel unit in which the mounting groove (491) is formed on both sides of the groove portion (490) is inserted into the protruding protrusion (462). The method of claim 1,
A ring-shaped upper gasket GA1 provided between the upper cap body 210 and the upper opening surface 120 of the pressure vessel body 110, and the lower cap body 310 and the pressure vessel body 110. Prefabricated pressure vessel unit comprising a ring-shaped lower gasket (GA2) provided between the lower opening surface (130). delete delete The method of claim 1,
The pressing part 500 may be spaced apart from the first pressing part 510 disposed on the side surface of the elastic pad 460 in the direction of the piezoelectric element part 430 from the first pressing part 510. And a first absorbing part 530 disposed between the pressing part 520 and the first pressing part 510 and the second pressing part 520.
The first pressing part 510 includes a first pressing part main body 511 in contact with the elastic pad 460, and the center of the side of the first pressing part main body 511 in the direction of the second pressing part 520. A part of the first flat part 5111 is formed, and the first flat part 5111 is provided with a plurality of first groove parts 5112 that are recessed with a specific curvature, and the radius of the first flat part 5111 is formed. The first stepped part 5113 is formed to protrude in the direction of the second pressing part 520 to form a step, and the second stepping part 520 in the radial direction outside of the first step part 5113. A second stepped portion 5114 protruding to form a step is formed,
The second pressing part 520 is inserted into the second stepping part 5114, and includes a second pressing part main body 521 contacting the first stepping part 5113, wherein the second pressing part main body ( A second flat portion 5211 is formed at a central portion of the side surface of the first pressing part 510 in the direction of the first pressing part 510, and a second groove portion 5212 is formed in the second flat portion 5211 to be recessed with a specific curvature. ,
The first absorption part 530 is disposed between the first flat part 5111 and the second flat part 5211,
The first absorbing part 530 has a plurality of elastic balls 531, a ring-shaped holder 532 into which the elastic balls 531 are inserted, and a connection bar 533 that connects the holders 532. Including,
The elastic ball 531 is a prefabricated pressure vessel unit is disposed between the first groove portion (5112) and the second groove portion (5212). The method of claim 5,
A plate-shaped base 540 is disposed in an inner space formed by the connection bar 533, and an elastic connection part 550 is connected between the base 540 and the connection bar 533.
A second absorbing part 600 is disposed on the upper and lower surfaces of the base 540 to contact the first flat part 5111 and the second flat part 5211, respectively.
The second absorbent part 600 has a spiral shape wound in a specific direction, and has the same shape and has a second upper absorbent part 600A and a second lower absorbent part disposed on upper and lower surfaces of the base 540, respectively. 600B), and the second upper absorbing part 600A and the second lower absorbing part 600B have a symmetrical shape and are wound in opposite directions.
The second absorbing part 600 includes a first spiral part 610 and a second spiral part 620 arranged in a spiral shape.
The first spiral portion 610 may include an eleventh fixed bar 611 fixed to the first flat portion 5111 or the second flat portion 5112, and a twelfth fixed bar 612 fixed to the base 540. And a first elastic bar 613 disposed in a spiral form between the eleventh fixed bar 611 and the twelfth fixed bar 611,
The second spiral part 620 is fixed to the first flat part 5111 or the second flat part 5211 and the twenty-first fixed bar 621 spaced apart from the eleventh fixed bar 611 by a predetermined interval, and A twenty-second fixed bar 622 fixed to the base 540, and a second elastic bar 623 disposed in a spiral form between the twenty-first fixed bar 621 and the twenty-second fixed bar 622;
The first elastic bar 613 is wound in the same direction as the second elastic bar (623) prefabricated pressure vessel unit in which the second elastic bar (623) is disposed inside the spiral of the first elastic bar (613). The method of claim 6,
One end of the eleventh fixing bar 611A and the twenty-first fixing bar 621A of the second upper absorbing part 600A of the second absorbing part 600 is fixed to the first flat part 5111, and the second One end of the eleventh fixing bar 611B and the twenty-first fixing bar 621B of the lower absorbing part 600B is fixed to the second flat part 5112,
One end of the second fixing bar 612A and the second fixing bar 612A of the second upper absorbing part 600A of the second absorbing part 600 is fixed to the upper surface of the base 540, and the second lower absorbing part 600A is absorbed. One end of the twelfth fixed bar 612B and the twenty-second fixed bar 621B of the part 600B is fixed to the bottom of the base 540,
An upper moving groove 542 for moving the eleventh fixed bar 611A and the twenty-first fixed bar 621A of the second upper absorbing part 600A is formed on the upper surface of the base 540, and the eleventh The upper moving groove 542 is formed in a direction in which the fixed bar 611A and the twenty-first fixed bar 621A are moved to wind or unwind the first spiral part 610 and the second spiral part 620.
A bottom moving groove 543 for moving the eleventh fixed bar 611A and the twenty-first fixed bar 621A of the second lower absorbing part 600B is formed on the bottom of the base 540, and the eleventh Prefabricated pressure in which the lower moving groove 543 is formed in a direction in which the fixed bar 611B and the twenty-first fixed bar 621B are moved or wound around the first spiral part 610 and the second spiral part 620. Container unit. The method of claim 6,
Further comprising a first elastic connecting portion 630 provided between the first elastic bar 613 and the second elastic bar 623 of the second absorbing portion 600,
The first elastic connecting portion 630 is provided on the first fixing plate 631 and the second elastic bar 623 fixed to the first elastic bar 613 and installed to face the first fixing plate 631. A second fixing plate 632 to be provided, and an elastic ball 633 provided between the first fixing plate 631 and the second fixing plate 632,
The first fixing plate 631 has a plate shape and is formed on a side of a first fixing plate body 6311 and a second fixing plate 632 of the first fixing plate body 6311 fixed to the first elastic bar 613. And a plurality of grooves 6312, which are recessed at a predetermined curvature, and are provided as a pair inside the grooves 6312, are symmetrical in the longitudinal direction of the first fixing plate body 6311, and at the bottom of the grooves 6312. It is provided in a circular arc shape having a specific curvature includes a holder (6313) is inserted into the elastic ball 633,
The second fixing plate 632 has a plate shape and is formed on a side of the second fixing plate main body 6321 and the second fixing plate main body 6321 which are fixed to the second elastic bar 623. And a plurality of grooves 6322 which are grooved at a predetermined curvature, and are provided in pairs in the grooves 6322, symmetrically in the longitudinal direction of the second fixing plate body 6321, and at the bottom of the grooves 6322. It is provided in a circular arc shape having a specific curvature includes a holder (6323) is inserted into the elastic ball 633,
Further comprising a second elastic connecting portion 640 provided between the first elastic bar 613 and the second elastic bar 623 of the second absorbing portion 600,
The second elastic connecting portion 640 includes a second absorbing portion left portion 600A and a second absorbing portion right portion 600B which are identical in shape and symmetrical to each other.
The second elastic connection part 640 may include a first connection bar 641 extending from the first elastic bar 613 of the first spiral part 610 toward the second spiral part 620, and the first connection bar. The first support portion 612 and the second elastic bar of the second spiral portion 620 after extending in the longitudinal direction of the first spiral portion 610 at 641 and being bent in the direction of the second spiral portion 620. A second connection bar 643 extending in the direction of the first spiral portion 610 at 623 and a second support bar 623 extending in the longitudinal direction of the second spiral portion 620 at the second connecting bar 643, wherein the first support portion After extending in the opposite direction to 612, the second support portion 644 bent in the direction of the first spiral portion 610, and a spring portion disposed between the first support portion 642 and the second support portion 644 ( 645 prefabricated pressure vessel unit.

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