Shock absorption device

Abstract

A shock absorption device, comprising a plurality of shock absorption units (130; 801) and an adjustment device (102; 850). Each shock absorption unit (130; 801) comprises a first axial end (311; 811) and a second axial end (312; 812); the first axial end (311; 811) is connected to a mounting part, and the second axial end (312; 812) is arranged facing the outside. The adjustment device (102; 850) is connected to the plurality of shock absorption units (130; 801), and is configured to be capable of adjusting the shock absorption frequency of the plurality of shock absorption units (130; 801).

Description

shock absorber Technical Field

[0001] The present application relates to a shock absorbing device, and in particular to a shock absorbing device used in a refrigeration system. Background Art

[0002] In refrigeration systems, pressure pulsations may occur within the unit, causing vibrations in various components. Therefore, vibration dampers are required to reduce these vibrations and prevent them from affecting component performance. These dampers are installed at the components requiring vibration damping. A single unit can contain multiple dampers. Summary of the Invention

[0003] The present application provides a shock absorbing device, comprising: a plurality of shock absorbing units and an adjusting device, each shock absorbing unit comprising a first axial end and a second axial end, the first axial end being connected to a mounting portion, and the second axial end being arranged toward the outside; the adjusting device being connected to the plurality of shock absorbing units, and being configured to be able to adjust the shock absorbing frequency of the plurality of shock absorbing units.

[0004] The shock absorbing device as described above further includes a connecting plate, and the first axial end of each shock absorbing unit is connected to the connecting plate.

[0005] In the shock absorbing device as described above, each of the plurality of shock absorbing units is a phononic crystal, and the phononic crystal includes an elastic body and a mass block.

[0006] As described above, the shock absorbing device comprises an adjusting plate having a plurality of mounting holes, each shock absorbing unit being mounted in a corresponding mounting hole, and the adjusting plate being movable along the axial direction of the plurality of shock absorbing units to change the shock absorbing frequency of the plurality of shock absorbing units.

[0007] As described above, the shock absorbing device, the adjusting device also includes a plurality of support columns, one end of each of the plurality of support columns is connected to the mounting portion, the adjusting plate is provided with a plurality of support column holes, each support column can enter the corresponding support column hole, so that the adjusting plate can move along the axial direction of the plurality of shock absorbing units.

[0008] In the shock absorbing device as described above, the adjustment plate includes a main body and an auxiliary plate, the main body and the auxiliary plate are arranged side by side, and the auxiliary plate can move relative to the main body along the extending direction of the adjustment plate to clamp the plurality of shock absorbing units.

[0009] As described above, the shock absorbing device comprises a plurality of adjustment block groups, each adjustment block group includes a plurality of adjustment blocks, and the plurality of adjustment blocks can be connected to a corresponding one of the mass blocks of the plurality of shock absorbing units. The mass of each adjustment block in each adjustment block group in the plurality of adjustment block groups is different from the mass of each adjustment block group in other adjustment block groups, so that the shock absorbing frequencies of the mass blocks of the plurality of shock absorbing units are different when connected to different adjustment block groups.

[0010] In the shock absorbing device as described above, one of the plurality of adjustment block groups includes adjustment blocks of different masses.

[0011] In the shock absorbing device as described above, each of the mass blocks of the multiple shock absorbing units is made of a first material, and each of the adjustment blocks is made of a second material. One of the first material and the second material is a magnetic material, and the other is an iron-containing material, so that the adjustment block can attract the corresponding shock absorbing unit.

[0012] As described above, the shock absorbing device further includes a limit plate, which includes a plurality of shock absorbing unit channels passing through both sides of the limit plate, and each of the plurality of shock absorbing unit channels is configured to accommodate a corresponding one of the plurality of shock absorbing units to limit the radial movement of the corresponding shock absorbing unit.

[0013] The present application also provides a safety valve, comprising: a valve body and the shock absorbing device as described above, wherein the valve body comprises a side wall; and the shock absorbing device is connected to the side wall.

[0014] The shock absorbing device in the present application has an adjusting device capable of adjusting the shock absorbing frequency of the shock absorbing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] FIG1 is a perspective view of a shock absorbing device according to a first embodiment of the present application;

[0016] FIG2 is a perspective view of the shock absorbing device in FIG1 ;

[0017] FIG3 is a perspective view of one of the damping units in FIG2 ;

[0018] FIG4A is a perspective view of the adjustment device in FIG2 ;

[0019] FIG4B is an exploded view of the adjustment device in FIG2 ;

[0020] FIG5A is a perspective view of the main body in FIG4B ;

[0021] FIG5B is a perspective view of the auxiliary plate in FIG4B ;

[0022] FIG6A is a side view of the shock absorbing device in FIG1 in the first position;

[0023] FIG6B is a side view of the shock absorbing device in FIG1 in the second position;

[0024] FIG7 is a side view of a second embodiment of the shock absorbing device of the present application;

[0025] FIG8A is a side view of a third embodiment of a shock absorbing device in the present application;

[0026] FIG8B is an exploded view of the shock absorbing device in FIG8A ;

[0027] FIG9 is a perspective view of a shock absorbing unit and an adjusting block in FIG8B ;

[0028] FIG10 is an exploded schematic diagram of a fourth embodiment of the shock absorbing device of the present application;

[0029] FIG11A is an exploded view of the safety valve and the shock absorbing device;

[0030] FIG. 11B is a perspective view of a safety valve having a shock absorbing device. DETAILED DESCRIPTION

[0031] Various specific embodiments of the present application will be described below with reference to the accompanying drawings that form a part of this specification. It should be understood that although terms indicating directions, such as "front", "back", "up", "down", "left", "right", "inside", "outside", "top", "bottom", "positive", "negative", "proximal", "distal", "lateral", "longitudinal", etc., are used in this application to describe various example structural parts and elements of the present application, these terms are used here only for the purpose of convenience of description and are determined based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in this application can be set in different directions, these terms indicating directions are only for illustration and should not be regarded as limitations.

[0032] FIG1 is a perspective view of a shock absorbing device according to a first embodiment of the present application, and FIG2 is a perspective view of the shock absorbing device in FIG1 .

[0033] As shown in Figures 1 and 2, the shock absorbing device 100 includes a shock absorbing unit assembly 101 and an adjusting device 102. The shock absorbing unit assembly 101 is connected to the installation part, and the adjusting device 102 is mounted on the shock absorbing unit assembly 101 and can move relative to the shock absorbing unit assembly 101, thereby adjusting the shock absorbing frequency of the shock absorbing unit. The shock absorbing unit assembly 101 includes a plurality of shock absorbing units 130. The shock absorbing device in the present application is installed at a part of the refrigeration system that is prone to vibration to reduce the vibration of the corresponding part. For example, the shock absorbing device 100 is installed on the valve body of the safety valve to avoid the reduction of the performance of the safety valve due to vibration.

[0034] Figure 3 is a perspective view of one of the damping units in Figure 2. Figure 3 illustrates the structure of the damping unit. As shown in Figure 3, the damping unit 130 is a phononic crystal and is roughly cylindrical. The damping unit 130 extends axially and has a first axial end 311 and a second axial end 312. The first axial end 311 is connected to the mounting portion, and the second axial end 312 is free. Along the axial direction of the damping unit 130, the damping unit 130 comprises a front section 321, a middle section 323, and a rear section 322, which are connected in sequence. The front section 321 and the rear section 322 are respectively connected to either side of the middle section 323. The diameter of the middle section 323 is larger than the diameters of the front section 321 and rear section 322, thereby forming a flange on the outer side of the middle section 323. The diameters of the front section 321 and rear section 322 are roughly equal, and the axial length of the rear section 322 is greater than the axial length of the front section 321. The front section 321 is connected to the mounting portion, and the rear section 322 is inserted into the adjustment device 102. In one embodiment of the present application, the front section 321 and the rear section 322 are elastic bodies made of elastic materials such as rubber, and the middle section 323 is a mass block made of metal material.

[0035] Figure 4A is a perspective view of the adjustment device in Figure 2, and Figure 4B is an exploded view of the adjustment device in Figure 2. As shown in Figures 4A and 4B, the adjustment device 102 includes an adjustment plate 405, a support column 430, and a drive device 460. The adjustment device 102 has a length direction L, a width direction W, and a thickness direction D.

[0036] The support column 430 extends along the thickness direction D. The adjustment plate 405 has a plurality of support column holes 451 and a plurality of mounting holes 431 that penetrate the adjustment device 102 along the thickness direction D. The support column holes 451 are used to accommodate the support columns 430, and the support columns 430 are slidably connected to the adjustment plate 405 through the support column holes 451. One end of the support column 430 is connected to the mounting portion, and the other end exceeds the outer surface of the adjustment plate 405. The adjustment plate 405 can slide relative to the support column 430 along the axial direction of the support column 430. The mounting hole 431 is used to install the shock absorbing unit 130. The rear section 322 of each shock absorbing unit 130 can be inserted into the mounting hole 431, and the adjustment plate 405 can move relative to the shock absorbing unit 130 along the axial direction of the shock absorbing unit 130.

[0037] The adjustment plate 405 includes a main body 401 and an auxiliary plate 402. The auxiliary plate 402 is arranged to overlap the main body 401 and is capable of sliding relative to the main body 401 along the length direction L. The driving device 460 includes a first driver 408 and a second driver 409. The first driver 408 is connected to the main body 401 and is capable of driving the adjustment plate 405 to move along the thickness direction D. The second driver 409 is connected to the auxiliary plate 402 and is capable of driving the auxiliary plate 402 to move along the length direction L.

[0038] Figure 5A is a perspective view of the main body shown in Figure 4B. As shown in Figure 5A, the main body 401 has a first side 511 and a second side 512 in the thickness direction. The main body 401 includes multiple mounting hole sections 518 and multiple support post holes 451. These sections 518 and 451 extend through the main body 401, extending through both the first side 511 and the second side 512. The mounting hole sections 518 are arranged in a specific order, with the diameter of each mounting hole section 518 slightly larger than the diameter of the rear section 322 of the shock absorber 130. The multiple support post holes 451 are arranged near the edges of the main body 401. The main body 401 also includes a pair of ribs 531 and 532, and multiple stoppers 550. The ribs 531 and 532 are located at opposite ends of the main body 401 in the width direction and protrude from the surface of the second side 512. The ribs 531 and 532 extend along the length of the main body 401 to both ends. One end of each stopper 550 is connected to one of the pair of ribs 531 and 532, and the other end extends toward the other rib. A gap exists between the distal end of the stopper 550 and the second side 512 of the main body to accommodate the edge of the auxiliary plate 402. In this application, the main body 401 includes four pairs of stoppers 550, which are sequentially arranged along the length of the main body 401 at the ribs 531 and 532.

[0039] FIG5B is a perspective view of the auxiliary plate in FIG4B . As shown in FIG5B , the auxiliary plate 402 has a first auxiliary plate side 611 and a second auxiliary plate side 612 in the thickness direction. The auxiliary plate 402 includes a plurality of mounting hole auxiliary plate portions 618 , which extend through the auxiliary plate first side 611 and the auxiliary plate second side 612 of the auxiliary plate 402. The plurality of mounting hole auxiliary plate portions 618 are arranged in a predetermined order and can overlap with the mounting hole main body portion 518 .

[0040] As shown in Figures 4A-5B, the auxiliary plate 402 can be inserted along the length of the main body 401 between the stop portion 550 and the surface of the second side 512 of the main body. Moving the auxiliary plate 402 along the length can cause each mounting hole main portion 518 to overlap with each mounting hole auxiliary plate portion 618. The mounting hole main portion 518 and the mounting hole auxiliary plate portion 618 form a mounting hole 431. The first actuator 408 is connected to the first side of the main body 401 and can drive the adjustment plate 405 to move along the thickness direction relative to the support column 430. The support column 430 can limit the movement of the adjustment plate 405 in the length and width directions. The second actuator 409 is connected to one end of the auxiliary plate 402 in the length direction L and can drive the auxiliary plate 402 to slide along the length direction L relative to the main body 401. The ribs 531 and 532 can limit the movement of the auxiliary plate 402 in the width direction relative to the main body 401. The second side 512 of the main body and the limiting portion 550 jointly limit the movement of the auxiliary plate 402 relative to the main body 401 in the thickness direction.

[0041] Figure 6A is a side view of the shock absorbing device in Figure 1 in the first position, and Figure 6B is a side view of the shock absorbing device in Figure 1 in the second position. As shown in Figures 6A and 6B, the first axial end 311 of the front section 321 of each shock absorbing unit 130 is embedded in the mounting portion 601, thereby connecting each shock absorbing unit 130 to the mounting portion 601. One end of the support column 430 is embedded in the mounting portion 601, and the other end protrudes from the adjustment plate 405. One end of the first actuator 408 is fixed to the mounting portion 601, and the other end is connected to the adjustment plate 405. The rear section 322 of the shock absorbing unit 130 is inserted into the corresponding mounting hole 431 and extends beyond the side of the adjustment plate 405 away from the mounting portion 601. The length by which the shock absorbing unit 130 protrudes from the adjustment plate 405 affects the damping frequency of the shock absorbing unit 130. In other words, changing the relative position of the adjustment plate 405 and the mounting portion 601 can change the damping frequency of the shock absorbing unit 130.

[0042] In one embodiment of the present application, in FIG6A , the shock absorbing device 100 is in an initial position. When the controller learns the required shock absorbing frequency of the installation location where the shock absorbing device 100 is located, the controller sends a signal to the first driver 408, instructing the first driver 408 to drive the adjustment plate 405 to move until it reaches the position shown in FIG6B , and the first driver 408 stops. Then, the second driver 409 drives the auxiliary plate 402 to slide along the length direction relative to the main body until the edges of the mounting hole main portion 518 and the mounting hole auxiliary plate portion 618 jointly clamp the shock absorbing unit 130 and stop. At this point, the shock absorbing frequency adjustment of the shock absorbing device 100 is completed. In the present application, the shock absorbing device 100 can adapt to different shock absorbing frequency requirements within a certain range.

[0043] FIG7 is a side view schematic diagram of a second embodiment of a shock absorbing device in the present application. Compared to the embodiment shown in FIG1 , the embodiment shown in FIG7 adds a connecting plate 722. That is, shock absorbing device 700 includes shock absorbing device 100 shown in FIG1 and connecting plate 722. The support column 430 and shock absorbing unit 130 in shock absorbing device 100 are connected to connecting plate 722, and shock absorbing device 700 is connected to the installation portion via connecting plate 722. The embodiment shown in FIG7 makes the installation process of shock absorbing device 700 more convenient.

[0044] FIG8A is a side view schematic diagram of a third embodiment of a shock absorbing device in the present application, and FIG8B is an exploded view of the shock absorbing device in FIG8A .

[0045] As shown in Figures 8A and 8B, the shock absorbing device 800 includes a limiting plate 810, a plurality of shock absorbing units 801 and an adjusting device 850. Each of the plurality of shock absorbing units 801 is installed in the limiting plate 810 and connected to the installation portion. The limiting plate 810 includes a plurality of shock absorbing unit channels 840 that pass through both sides of the limiting plate 810, and the plurality of shock absorbing units 801 are respectively accommodated in the corresponding shock absorbing unit channels 840. The shape of the shock absorbing unit channel 840 matches the shape of the shock absorbing unit 801, and its size is roughly equal to the outer contour size of the shock absorbing unit 801, or slightly larger than the outer contour size of the shock absorbing unit 801, so that the shock absorbing unit 801 can move in the shock absorbing unit channel 840, but cannot move significantly relative to the radial direction. The adjusting device 850 includes a plurality of adjusting blocks 820, each of which can be detachably connected to a corresponding shock absorbing unit.

[0046] FIG9 is a perspective view of a damping unit and an adjustment block in FIG8B . As shown in FIG9 , the damping unit 801 is a phononic crystal and includes a front section 821 and a rear section 822 connected in sequence. The front section 821 is an elastomer made of an elastic material, while the rear section 822 is a mass made of a metal material. Both the front section 821 and the rear section 822 are roughly cylindrical, with the diameter of the rear section 822 being larger than that of the front section 821. One end of the front section 821 forms a first axial end 811 of the damping unit 801, and the other end is connected to the rear section 822. One end of the rear section 822 is connected to the front section 821, and the other end forms a second axial end 812 of the damping unit 801. The first axial end 811 is connected to the mounting portion, and the second axial end 812 is connected to the adjustment block 820.

[0047] In one embodiment of the present application, each of the mass blocks is made of a first material, and each of the adjustment blocks 820 is made of a second material, wherein one of the first material and the second material is a magnetic material and the other is an iron-containing material, so that the adjustment block can attract the corresponding shock-absorbing unit and thus be connected to the corresponding shock-absorbing unit.

[0048] In the embodiment shown in FIG8A , the adjustment device 850 may include multiple adjustment block groups, wherein the mass of the adjustment blocks in each adjustment block group is different from the masses of the adjustment blocks in other adjustment block groups. When multiple damping units are connected to different adjustment block groups, the damping frequency of the damping device 800 is different. The mass of each adjustment block in each adjustment block group can also be set to be different, thereby enabling further fine-tuning of the damping frequency of the damping device 800.

[0049] FIG10 is a schematic diagram of an exploded view of the fourth embodiment of the shock absorbing device in the present application. Compared with the embodiment shown in FIG8A , the embodiment shown in FIG10 has an additional connecting plate 832. In other words, the shock absorbing device 1000 includes the shock absorbing device 800 and the connecting plate 832 shown in FIG1 . The shock absorbing unit 801 in the shock absorbing device 1000 is connected to the connecting plate 832, and the shock absorbing device 1000 is connected to the installation portion via the connecting plate 832. The embodiment shown in FIG9 makes the installation process of the shock absorbing device 1000 more convenient.

[0050] The shock absorbing devices in this application are all capable of adjusting the shock absorbing frequency.

[0051] FIG. 11A is an exploded view of a safety valve and a shock absorbing device, and FIG. 11B is a perspective view of a safety valve with a shock absorbing device.

[0052] As shown in Figures 11A and 11B , the safety valve comprises a valve body 1101, which includes a sidewall 1112. A shock absorbing device is connected to the sidewall 1112. In the embodiments shown in Figures 1 and 8A , the shock absorbing device is directly connected to the sidewall 1112. In the embodiments shown in Figures 7 and 10 , the shock absorbing device is connected to the sidewall 1112 via a connecting plate.

[0053] The safety valve shown in FIG. 11A and FIG. 11B is an example of an application scenario of the shock absorbing device in the present application. The shock absorbing device in the present application can be installed in other pipelines or components that require shock absorption.

[0054] Although the present disclosure has been described in conjunction with the examples of the embodiments outlined above, various alternatives, modifications, variations, improvements and / or substantial equivalents, whether known or now or soon foreseeable, may be apparent to those skilled in the art. In addition, the technical effects and / or technical problems described in this specification are exemplary and not restrictive; so the disclosures in this specification may be used to solve other technical problems and have other technical effects. Therefore, various changes may be made without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure is intended to include all known or earlier developed alternatives, modifications, variations, improvements and / or substantial equivalents.

Claims

1. A shock-absorbing device, characterized in that Comprising: A plurality of shock absorption units (130; 801), each shock absorption unit (130; 801) includes a first axial end (311; 811) and a second axial end (312; 812), the first axial end (311; 811) is connected to the installation site, and the second axial end (312; 812) is arranged towards the outside; An adjusting device (102; 850), the adjusting device (102; 850) is connected to the plurality of shock absorption units (130) and is configured to be able to adjust the shock absorption frequency of the plurality of shock absorption units (130).

2. The shock absorption device according to claim 1, wherein: The shock absorption device further includes a connecting plate (722; 832), and the first axial end (311; 811) of each shock absorption unit (130; 801) is connected to the connecting plate (722; 832).

3. The shock absorption device according to claim 1, wherein: Each of the plurality of shock absorption units (130, 801) is a phononic crystal, and the phononic crystal includes an elastomer (321, 322; 821) and a mass block (323; 822).

4. The shock absorption device according to claim 1, wherein: The adjusting device includes an adjusting plate (forty-five), the adjusting plate (forty-five) has a plurality of mounting holes (431), each shock absorption unit is installed in a corresponding mounting hole (431), and the adjusting plate (forty-five) can move along the axial direction of the plurality of shock absorption units (130) to change the shock absorption frequency of the plurality of shock absorption units (130).

5. The shock absorption device according to claim 4, wherein: The adjusting device further includes a plurality of support columns (430), one end of each of the plurality of support columns (430) is connected to the installation site, and the adjusting plate (forty-five) is provided with a plurality of support column holes (451), and each support column (430) can enter a corresponding support column hole so that the adjusting plate (forty-five) can move along the axial direction of the plurality of shock absorption units (130).

6. The shock absorption device according to claim 4, wherein: The adjusting plate (forty-five) includes a main body (401) and an auxiliary plate (402), the main body (401) and the auxiliary plate (402) are arranged side by side, and the auxiliary plate (402) can move relative to the main body (401) along the extending direction of the adjusting plate (forty-five) to clamp the plurality of shock absorption units (130).

7. The shock absorption device according to claim 3, wherein: The adjusting device is a plurality of adjusting block groups (850), each adjusting block group (850) includes a plurality of adjusting blocks (820), a plurality of the adjusting blocks can be connected to a corresponding one of the mass blocks (822) of the plurality of shock absorption units, and the mass of each adjusting block in each adjusting block group among the plurality of adjusting block groups is different from the mass of each adjusting block in other adjusting block groups, so that the shock absorption frequencies are different when the mass blocks (822) of the plurality of shock absorption units are connected to different adjusting block groups (850). It should be noted that in the translation, "forty-five" in "The adjusting device includes an adjusting plate (forty-five)" should be the correct number or name corresponding to the original Chinese, which may be misrepresented in the original text. Here it is translated as "forty-five" for the purpose of showing the translation process. You can adjust it according to the correct content.

8. The shock absorption device according to claim 7, wherein: One of the plurality of adjustment block groups includes adjustment blocks with different masses.

9. The shock absorption device according to claim 7, wherein: Each of the mass blocks (822) of the plurality of shock absorption units is made of a first material, each of the adjustment blocks (820) is made of a second material, and one of the first material and the second material is a magnetic material and the other is an iron-containing material, so that the adjustment blocks can attract the corresponding shock absorption units to each other.

10. The shock absorption device according to claim 7, wherein: The shock absorption device further includes a limit plate (810), the limit plate (810) includes a plurality of shock absorption unit channels (840) penetrating through both sides of the limit plate (810), and each of the plurality of shock absorption unit channels (840) is configured to accommodate a corresponding one of the plurality of shock absorption units (801) to limit the radial movement of the corresponding shock absorption unit (801).

11. A safety valve, characterized in that Comprising: A valve body (1101), the valve body (1101) includes a side wall (1112); The shock absorption device according to any one of claims 1-10, the shock absorption device is connected to the side wall (1112).

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