An airbag vibration isolator

Abstract

The present invention relates to an airbag vibration isolator, belonging to the technical field of vibration isolation equipment, and solves the technical problem of the inconvenient transportation and use of the existing airbag vibration isolator. The airbag vibration isolator includes a vibration isolator body and a support assembly. The vibration isolator body includes an airbag and a first cover plate and a second cover plate arranged at intervals. The two ends of the airbag are hermetically connected to the first cover plate and the second cover plate respectively; the support assembly is arranged outside the airbag and between the first cover plate and the second cover plate. When the airbag is not inflated, the two ends of the support assembly are detachably and fixedly connected to the first cover plate and the second cover plate respectively. The support assembly can protect the airbag from being damaged during transportation, and can also provide support for the first cover plate and the second cover plate during the installation of the equipment, so that there is no need to use an external support block; when the airbag is inflated, the support assembly is separated from the second cover plate. The support assembly can temporarily support the first cover plate and the second cover plate when the airbag is suddenly damaged to prevent the equipment from being damaged.

Description

Technical Field

[0001] The present invention belongs to the technical field of vibration isolation equipment, and particularly relates to an airbag vibration isolator. Background Art

[0002] With the continuous improvement of ship technology level and the deepening understanding of vibration and noise, the work of vibration reduction and noise reduction design has been paid more and more attention. The airbag vibration isolator can efficiently isolate the vibration transmission from the ship noise source equipment to the engine feet, achieving a good vibration isolation effect.

[0003] In the transportation process of the existing airbag vibration isolator, it is necessary to install the airbag vibration isolator in a special protection tooling to prevent the airbag from being damaged during transportation. After the airbag is transported to the use site, it is necessary to use special support blocks to support the upper cover plate and the lower cover plate of the airbag vibration isolator. After the support, the equipment that needs vibration reduction is installed on the upper cover plate of the airbag vibration isolator. After the equipment is installed, the airbag is inflated. When the airbag expands during inflation, the support blocks will automatically fall off.

[0004] However, in the actual transportation and use process, the situation of loss of protection tooling or external support parts often occurs, which affects the transportation or installation progress of the airbag shock absorber, and also restricts its wide application to a certain extent. Moreover, during the use of the airbag vibration isolator, if the airbag suddenly breaks, the upper cover plate will fall, which may cause damage to the equipment installed on the airbag vibration isolator. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to overcome the deficiencies of the prior art and provide an airbag vibration isolator to solve the technical problem of inconvenient use of the airbag vibration isolator in the prior art.

[0006] The present invention is achieved by the following technical solutions:

[0007] An airbag vibration isolator, comprising:

[0008] A vibration isolator body, the vibration isolator body includes an airbag and a first cover plate and a second cover plate arranged at intervals, and both ends of the airbag are hermetically connected to the first cover plate and the second cover plate respectively; and,

[0009] A support assembly, a plurality of the support assemblies are detachably connected between the first cover plate and the second cover plate, so that the first cover plate and the second cover plate can be selectively supported or separated by the plurality of support assemblies.

[0010] Optionally, to better implement the present invention, the support assembly includes a support rod and a movable member. The movable member is movably connected to the second cover plate. A plug-in portion adapted to the movable member is provided on the rod body of the support rod. The movable member makes the support rod support or separate between the first cover plate and the second cover plate by connecting or separating from the plug-in portion.

[0011] Optionally, to better implement the present invention, a first hole adapted to the end of the support rod and a second hole adapted to the movable member are provided on the second cover plate. One end of the second hole communicates with the hole body of the first hole. One end of the support rod is inserted into the first hole so that the plug-in portion is located at the position of the second hole. One end of the movable member passes through the second hole to connect or separate from the plug-in portion.

[0012] Optionally, to better implement the present invention, the support assembly further includes a support base. The two ends of the support rod are respectively detachably and fixedly connected to one end of the support base and the first cover plate. The other end of the support base is adapted to the first hole. The plug-in portion is provided on the side wall of the support base.

[0013] Optionally, to better implement the present invention, the support rod is a screw. A first threaded hole adapted to the support rod is provided on the first cover plate. A second threaded hole adapted to the support rod 96 is provided on the support base. The support rod is screwed to the first threaded hole and then to the second threaded hole.

[0014] Optionally, to better implement the present invention, a nut for tightening the support base and the support rod together is also screwed on the support rod.

[0015] Optionally, to better implement the present invention, a boss for making the plug-in portion located at the position of the second hole is provided on the support base. The boss supports on the second plate.

[0016] Optionally, to better implement the present invention, the airbag shock absorber further includes a cushion block. The cushion block supports between the first cover plate and the second cover plate when the airbag is not inflated. One end of the cushion block is fixedly connected to the first cover plate or the second cover plate.

[0017] Optionally, to better implement the present invention, a support platform and a support groove that cooperate with each other are provided inside the airbag. The support platform (91) is connected to the first cover plate (1), and the support groove (92) is connected to the second cover plate (2).

[0018] Optionally, to better implement the present invention, a buffer pad is provided on the surface of the support groove and / or the support platform.

[0019] The present invention has the following beneficial effects compared with the prior art:

[0020] In the present invention, a plurality of support components are added between the first cover plate and the second cover plate of the airbag shock absorber. When the airbag is not inflated, the support components are connected to the first cover plate and the second cover plate, so that the support components can rigidly support between the first cover plate and the second cover plate to provide a support function, thus eliminating the need to use an external support block to support the first cover plate and the second cover plate. Moreover, when the plurality of support components surround the airbag, the support components can also play a role in protecting the airbag. When the airbag is inflated, one end of the support component is separated from the first cover plate or the second cover plate. When the airbag is damaged during the use of the airbag shock absorber, the support component can also play an emergency support role, reducing damage to the equipment caused by falling. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0022] Figure 1 is a top view of Embodiment 1;

[0023] Figure 2 is a top view of Embodiment 2;

[0024] Figure 3 is Figure 1 the A-A cross-sectional view in

[0025] Figure 4 is Figure 1 the B-B cross-sectional view in

[0026] Figure 5 is Figure 2 the C-C cross-sectional view in

[0027] In the figure, 1 - first cover plate; 2 - second cover plate; 3 - airbag; 31 - steel ring; 32 - airbag valve; 33 - connecting bolt; 4 - snap ring; 5 - movable part; 6 - support rod; 7 - support seat; 71 - insertion part; 72 - boss; 8 - nut; 91 - support platform; 92 - support groove; 93 - buffer pad; 10 - cushion block; 11 - fixing bolt. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] To make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. All other implementation manners obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope protected by the present invention.

[0029] Embodiment 1:

[0030] An airbag vibration isolator, as Figure 1 、 Figure 3 and Figure 4 shown, includes: a vibration isolator body and a support assembly. Among them, the vibration isolator body includes an airbag 3 and a first cover plate 1 and a second cover plate 2 arranged at intervals. The first cover plate 1 and the second cover plate 2 are arranged in parallel. Both ends of the airbag 3 are open. Ring-shaped fixing parts are provided along the edges of both ends of the airbag 3. A steel ring 31 is vulcanized in the ring-shaped fixing parts. A buckle ring 4 adapted to the ring-shaped fixing parts is connected to both the first cover plate 1 and the second cover plate 2 through a plurality of connecting bolts 33. The buckle rings 4 are respectively buckled on the ring-shaped fixing parts at both ends of the airbag 3 and then connected to the first cover plate 1 and the second cover plate 2. The equipment to be installed is installed on the first cover plate 1, and the second cover plate 2 is connected to the base on the hull.

[0031] As Figure 3 shown, a pipeline communicating with the inside of the airbag 3 is provided on the first cover plate 1, and an airbag valve 32 is installed on the pipeline. Of course, the airbag valve 32 can also be directly installed on the airbag 3.

[0032] The support assembly is arranged outside the airbag 3 and rigidly supports between the first cover plate 1 and the second cover plate 2. The support assembly is a ring-shaped structure or a columnar structure with a first end and a second end. The first end of the support assembly is detachably and fixedly connected to the first cover plate 1, and the second end of the support assembly is detachably and fixedly connected to the second cover plate 2. Of course, the two ends of the support assembly can also be detachably and fixedly connected to the first cover plate 1, and the first end of the support assembly is detachably and fixedly connected to the second cover plate 2. When the support assembly is a ring-shaped structure, the support assembly is arranged outside the airbag 3 and surrounds the airbag 3. When the support assembly is a columnar structure, the number of the support assemblies is multiple, and the multiple support assemblies are distributed at intervals around the airbag 3 and surround the airbag 3. In this embodiment, as Figure 1 shown, the number of the support assemblies is 4, and the 4 support assemblies are evenly distributed in a circumferential manner outside the airbag.

[0033] As Figure 4 shown, before and during the use of the airbag 3 vibration isolator, the support assembly has two different states:

[0034] As Figure 4As shown, before the airbag 3 shock absorber is used, that is, when the airbag 3 is not inflated, both ends of the support assembly are respectively connected to the first cover plate 1 and the second cover plate 2. At this time, the support assembly can not only protect the airbag 3 during transportation but also support the equipment during equipment installation.

[0035] When the airbag 3 shock absorber is in use, that is, after the airbag 3 is inflated (not shown in the figure), the support assembly is still connected to the first cover plate 1, and the connection between the support assembly and the second cover plate 2 is disconnected, so that the support assembly separates from the second cover plate 2 as the airbag 3 expands. When the airbag 3 shock absorber is subjected to a huge impact and the airbag 3 is damaged, the support assembly can then re-support between the first cover plate and the second cover plate to play an emergency support role, reducing the distance of the first cover plate 1 from falling, and at the same time reducing the possibility of the equipment installed on the first cover plate 1 being damaged.

[0036] Specifically, as Figure 4 shown, the support assembly includes a support rod 6 and a movable member 5. One end of the support rod 6 is detachably connected to the first plate, and a movable member 5 is connected to the second cover plate 2. The connection method between the movable member 5 and the second cover plate 2 adopts a sliding connection, a threaded connection, a hinged connection, or other connection methods that can enable the movable member 5 to move on the second cover plate 2. A plug-in portion 71 adapted to the end of the movable member 5 is provided on the rod body of the support rod 6. When it is necessary to fixedly connect the support assembly to the second cover plate 2, one end of the movable member 5 is inserted into the plug-in portion 71 for fixation. When it is necessary to separate the support assembly from the second cover plate 2, the end of the movable member 5 is away from the plug-in portion 71. The plug-in portion 71 is a hole-shaped or groove-shaped structure. In this embodiment, only the movable member 5 is connected to the second cover plate 2. Of course, during actual manufacturing, the movable member 5 can also be provided on both the first cover plate 1 and the second cover plate 2, and two plug-in portions 71 are provided on the support rod 6. The connection or separation between the first cover plate 1 and the support rod 6 and the connection and separation between the second cover plate 2 and the support rod 6 are realized through the movable member 5 and the connection portion. During use, any one of the movable members 5 on the first cover plate 1 or the movable member 5 on the second cover plate 2 can be disconnected from the corresponding plug-in portion 71. Of course, the support rod 6 can be a metal part with high rigidity, or a cylinder support device such as a support cylinder or a support oil cylinder.

[0037] The second cover plate 2 is provided with a first hole adapted to one end of the support rod 6 and a second hole adapted to one end of the movable member 5. The first hole is vertically arranged on the upper end surface of the second cover plate 2. The first hole can be a through hole or a blind hole. The second hole is vertically arranged on the side wall of the second cover plate 2. One end of the second hole communicates with the hole body of the first hole. One end of the support rod 6 is inserted into the first hole. The insertion part 71 is close to the end of the support rod 6 and is inserted into the first hole together with the end of the support rod 6, and the insertion part 71 is opposite to the position where the second hole is located. One end of the movable member 5 is movably connected to the second hole and can selectively extend into or out of the insertion part 71. Optionally, the movable member 5 is provided with a first external thread, and the second hole is provided with a first internal thread. The movable member 5 is movably connected to the second hole through the first external thread and the first internal thread. Alternatively, the movable member 5 is slidably connected to the second hole and is locked and fixed by a check bolt.

[0038] As Figure 4 shown, the support assembly further includes a support base 7. The support rod 6 is selected as a screw rod. The first cover plate 1 is provided with a first threaded hole adapted to the support rod 6, and the support base 7 is provided with a second threaded hole adapted to the support rod 6. The support rod 6 is detachably connected to the first cover plate 1 through the first threaded hole, and the support rod 6 is detachably connected to the support base 7 through the second threaded hole. During installation, first screw the threaded end of the support rod 6 into and through the first threaded hole to connect the first cover plate 1 and the support rod 6, and then screw the threaded end of the support rod 6 into the second threaded hole to connect the support base 7 and the support rod 6. Of course, the support rod 6 and the first cover plate 1 can also be fixedly connected by a pin or welded, and the support rod 6 and the support base 7 can also be fixedly connected by a pin.

[0039] As Figure 4 shown, in order to enable the insertion part 71 to be aligned with the second hole when the end of the support assembly is inserted into the first hole, optionally, a boss 72 is provided on the side wall of the support base 7. The insertion part 71 is located below the first boss 72. The diameter of the boss 72 is greater than the diameter of the first hole. The distance between the boss 72 and the insertion part 71 is equal to the distance between the second hole and the end face of the second cover plate 2 close to the boss 72. When the second end of the rigid support member assembly is inserted into the first hole, the boss 72 not only plays a positioning role for the insertion part 71, but also plays a supporting role for the entire rigid support member.

[0040] As Figure 4 shown, a nut 8 is screwed on the rod body of the support rod 6. After the support rod 6 is threadedly connected to the support base 7, the nut 8 is screwed to fit with the support base 7 to realize the tightening of the support base 7 to prevent the support base 7 and the support rod 6 from being separated due to vibration.

[0041] It is conceivable that when the support rod 6 is a screw rod, the support seat 7 is connected to the second cover plate 2 instead of directly connecting the support rod 6 to the second cover plate 2. The support seat 7 can also effectively prevent the thread of the support rod 6 from being damaged and affecting the screwing in of the nut 8.

[0042] like Figure 3 As shown, a supporting platform 91 and a supporting groove 92 that cooperate with each other are provided in the airbag 3. The supporting platform 91 is fixedly connected to the first cover plate 1, and the supporting groove 92 is fixedly connected to the second cover plate 2. Preferably, after the airbag 3 is inflated and the first cover plate 1 moves up, the end of the supporting platform 91 away from the first cover plate 1 is still located in the supporting groove 92. When the vibration isolator of the airbag 3 is subjected to a huge impact, the supporting platform 91 can effectively reduce the lateral shaking of the first cover plate 1. At the same time, when the airbag 3 is damaged, the supporting platform 91 falls into the supporting groove 92 and can also play a role of auxiliary emergency support. When the support assembly cannot support the first cover plate 1 and the second cover plate 2, the end of the supporting platform 91 fits with the bottom of the supporting groove 92 to form a second support for the first cover plate 1.

[0043] Optional, such as Figure 3 As shown, a buffer pad 93 is provided on the surface of the support platform 91 and / or the support groove 92. The buffer pad 93 can be a spring or rubber or polyurethane.

[0044] Embodiment 2:

[0045] This embodiment is another implementation of embodiment 1. Figure 2 and Figure 5 As shown, in this embodiment, a cushion block 10 is further provided between the first cover plate 1 and the second cover plate 2. There are multiple cushion blocks 10, and the multiple cushion blocks 10 are distributed outside the airbag 3. One end of the cushion block 10 is connected to the first cover plate 1 or the second cover plate 2 by a fixing bolt 11. Of course, the cushion block 10 can also be fixed to either the first cover plate 1 or the second cover plate 2 by bonding.

[0046] The cushion block 10 is a cushion block 10 made of polyurethane, plastic or rubber with a certain elasticity, preferably a polyurethane cushion block. When the airbag is not inflated, the other end of the cushion block 10 is attached to the other of the first cover plate 1 or the second cover plate 2 to form an auxiliary support. When the airbag is damaged after inflation, the cushion block 10 can also play the role of auxiliary emergency support, and the elasticity of the cushion block 10 itself can cushion the falling first cover plate 1.

[0047] In this embodiment, if Figure 2 As shown, there are two cushion blocks 10. When there are two support assemblies, the two cushion blocks 10 and the two support assemblies can stably support the first cover plate 1 and the second cover plate 2. Of course, the number of cushion blocks 10 can also be adjusted according to actual needs and is not limited to two.

[0048] The remaining structure of this embodiment is the same as that of Embodiment 1.

[0049] As described above, the above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. An airbag vibration isolator, characterized in that, Comprising: A vibration isolator body, the vibration isolator body includes an airbag (3) and a first cover plate (1) and a second cover plate (2) arranged at intervals, and both ends of the airbag (3) are hermetically connected to the first cover plate (1) and the second cover plate (2) respectively; And, A support assembly, a plurality of the support assemblies are detachably connected between the first cover plate (1) and the second cover plate (2), so that the first cover plate (1) and the second cover plate (2) are selectively supported or separated by the plurality of support assemblies; The support assembly includes a support rod (6) and a movable member (5), the movable member (5) is movably connected to the second cover plate (2), and a plug-in portion (71) adapted to the movable member (5) is provided on the rod body of the support rod (6), and the movable member (5) makes the support rod (6) support or separate between the first cover plate (1) and the second cover plate (2) by connecting or separating from the plug-in portion (71); A first hole adapted to the end of the support rod (6) and a second hole adapted to the movable member (5) are provided on the second cover plate (2), one end of the second hole communicates with the hole body of the first hole, one end of the support rod (6) is inserted into the first hole, so that the plug-in portion (71) is located at the position of the second hole, and one end of the movable member (5) passes through the second hole to connect or separate from the plug-in portion (71); The support assembly further includes a support seat (7), both ends of the support rod (6) are detachably and fixedly connected to one end of the support seat (7) and the first cover plate (1) respectively, the other end of the support seat (7) is adapted to the first hole, and the plug-in portion (71) is provided on the side wall of the support seat (7); The support rod (6) is a screw, a first threaded hole adapted to the support rod (6) is provided on the first cover plate (1), a second threaded hole adapted to the support rod (6) is provided on the support seat (7), and the support rod (6) is screwed to the first threaded hole and then to the second threaded hole; A boss (72) for making the plug-in portion (71) located at the position of the second hole is provided on the support seat (7), and the boss (72) supports on the second cover plate (2).

2. The airbag vibration isolator according to claim 1, characterized in that: A nut (8) for tightening the support seat (7) and the support rod (6) together is also screwed on the support rod (6).

3. An air spring vibration isolator according to any one of claims 1 to 2, characterized in that: The airbag vibration isolator further includes a cushion block (10), the cushion block (10) supports between the first cover plate (1) and the second cover plate (2) when the airbag (3) is not inflated, and one end of the cushion block (10) is fixedly connected to the first cover plate (1) or the second cover plate (2).

4. An air spring isolator according to any one of claims 1 to 2, characterized in that: A support platform (91) and a support groove (92) that cooperate with each other are provided in the airbag (3), the support platform (91) is connected to the first cover plate (1), and the support groove (92) is connected to the second cover plate (2).

5. An air spring vibration isolator according to claim 4, characterized in that: A buffer pad (93) is provided on the surface of the support groove (92) and / or the support platform (91).

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