Vibration isolator and mounting structure thereof

Abstract

The utility model discloses a vibration isolator and a mounting structure thereof, which comprises a shell, a central shaft mounted on the shell and capable of floating up and down relative to the shell, a first elastic body arranged between the shell and the central shaft, an end cover arranged above the shell, and a second elastic body arranged between the end cover and the shell, one end of the central shaft upwards protrudes out of the end cover, a rotary limiting structure is arranged between the central shaft and the end cover and used for limiting the central shaft to do rotary motion relative to the end cover, and meanwhile, a first limiting feature is arranged on the end cover and used for being matched with an external vibration isolator mounting support to form circumferential limiting on the end cover. The central shaft can be prevented from rotating along with an external fastener when the vibration isolator is assembled and disassembled, additional special tools are not needed any more, the number of spare accessories of a shock absorber is reduced, meanwhile, the size and the installation space of the vibration isolator can be further reduced, and the vibration isolator can be installed at a narrow position more easily.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of vibration isolator, especially a vibration isolator and its mounting structure. BACKGROUND

[0002] In the practical application of the vibration isolator, the convenience of installation and disassembly is crucial. However, the previous vibration isolator has a prominent problem, that is, in the process of installation and disassembly, the central shaft will rotate with the fastener on the outside, which makes the installation and disassembly operation of the vibration isolator very difficult.

[0003] To solve this problem, the existing vibration isolator adopts the way of integrally machining a hexagonal head on the central shaft, using a thin open wrench to fix the central shaft during installation and disassembly, so that the central shaft can be controlled not to follow the rotation of the fastener. However, this solution has obvious defects: first, it needs to be equipped with additional special tools - thin open wrenches, which are not only difficult to store, but also easy to lose in actual use scenarios. Once lost, the regular wrench cannot be used due to thickness problems, so the installation and disassembly work of the vibration isolator will be in trouble; secondly, and more importantly, in many narrow space application scenarios, due to space limitations, it is impossible to use such thin open wrenches for operation, making it almost impossible to install and disassemble the vibration isolator in these special spaces.

[0004] In summary, the existing vibration isolator installation and disassembly method is seriously affected by the central shaft rotation problem and the limitations of the corresponding solution, which seriously affects the convenience and applicability of the vibration isolator in actual use, and there is an urgent need for a new vibration isolator design to overcome these problems. SUMMARY

[0005] The problem to be solved by the utility model is to provide a vibration isolator and its mounting structure to overcome the defects of the existing vibration isolator that requires special tools to prevent the central shaft from rotating and cannot be operated in a narrow space.

[0006] The utility model adopts the technical scheme to solve the technical problem: a vibration isolator, comprising: a shell, a central shaft installed on the shell and capable of floating up and down relative to the shell, a first elastic body arranged between the shell and the central shaft, and an end cover arranged above the shell, a second elastic body is arranged between the end cover and the shell, one end of the central shaft protrudes out of the end cover, and a rotation limiting structure is arranged between the central shaft and the end cover, the rotation limiting structure is used to limit the rotation of the central shaft relative to the end cover, and a first limiting feature is arranged on the end cover, which is used to cooperate with the external vibration isolator mounting bracket to form a circumferential limit on the end cover.

[0007] As a further improvement of the utility model, the first limiting feature is at least one limiting boss and / or a first limiting hole provided on the top of the end cover.

[0008] As a further improvement of the utility model, the rotating limiting structure comprises a second limiting feature provided in the middle of the end cover and a third limiting feature provided in the middle of the central shaft, the second limiting feature and the third limiting feature cooperate to limit the central shaft in the circumferential direction.

[0009] As a further improvement of the utility model, the second limiting feature is a non-circular second limiting hole, the third limiting feature is a limiting shaft part matched with the shape of the second limiting hole, the central shaft passes through the second limiting hole and makes the limiting shaft part cooperate in the second limiting hole.

[0010] As a further improvement of the utility model, the top of the shell is provided with an end plate, a central hole for the central shaft to pass through is provided in the middle of the end plate, the second elastic body is between the end plate and the end cover; the other end of the central shaft extends outwardly along the radial direction to form a flange disc, the flange disc is located in the shell, and the first elastic body is between the flange disc and the end plate.

[0011] As a further improvement of the utility model, the vibration isolator further comprises a third elastic body, the third elastic body is sleeved on the central shaft and passes through the central hole, and meanwhile the upper and lower ends of the third elastic body abut against the end cover and the flange disc respectively; a bushing is sleeved on the third elastic body, and the inner ring of the end plate abuts against the bushing.

[0012] As a further improvement of the utility model, the first elastic body, the second elastic body and the third elastic body are springs, soft rubber elastic bodies or elastic sheets.

[0013] As a further improvement of the utility model, an external thread is arranged on the cylindrical surface of the end of the central shaft protruding out of the end cover.

[0014] The utility model also provides a vibration isolator mounting structure, including mounting support and the vibration isolator, the mounting support is provided with mounting hole, the central shaft passes through the mounting hole and is fixedly connected with the mounting support through fastener, simultaneously makes the bottom of mounting support be attached to the top of end cover, the bottom of mounting support is equipped with fourth limiting feature, and the fourth limiting feature cooperates with the first limiting feature to form the circumferential limit of end cover.

[0015] As a further improvement of the utility model, the first limiting feature is at least one limiting boss provided on the top of the end cover, and the fourth limiting feature is a limiting groove corresponding to the limiting boss, and the limiting boss is matched in the limiting groove;

[0016] Or the first limiting feature is at least one first limiting hole provided on the top of the end cover, and the fourth limiting feature is a limiting column corresponding to the first limiting hole, and the limiting column is matched in the first limiting hole;

[0017] Or the first limiting feature is at least one limiting boss and at least one first limiting hole provided on the top of the end cover, and the fourth limiting feature is a limiting groove corresponding to the limiting boss and a limiting column corresponding to the first limiting hole, and the limiting boss is matched in the limiting groove, and the limiting column is matched in the first limiting hole.

[0018] The utility model discloses a kind of vibration isolator and mounting structure, by being built between the center axis of vibration isolator and end cover rotation limiting structure limiting center axis relative to end cover to rotate, simultaneously, first limiting feature is set on end cover to cooperate with external vibration isolator mounting bracket to form circumferential limiting to end cover, to prevent center axis from rotating with external fastener when vibration isolator is assembled and disassembled, greatly improve the smoothness and efficiency of vibration isolator assembly and disassembly, and this structure design makes that vibration isolator is assembled and disassembled no longer need additional special thin open spanner, can reduce the number of shock absorber spare parts, also avoid the problem that special tool is not stored, easy to lose, reduce use cost and management difficulty, improve the convenience of vibration isolator use, simultaneously, the volume and installation space of vibration isolator can be further reduced, reduce the weight of vibration isolator, so that vibration isolator is installed more easily in narrow position, significantly widen the application scene and applicable range of vibration isolator. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creating any creative labor.

[0020] Figure 1 It is a perspective view of the utility model vibration isolator embodiment one;

[0021] Figure 2 It is a top view of the utility model vibration isolator embodiment one;

[0022] Figure 3The utility model discloses a vibration isolator along Figure 2 The sectional view along A-A direction in the middle;

[0023] Figure 4 The utility model discloses a vibration isolator embodiment one's exploded view;

[0024] Figure 5 The utility model discloses a vibration isolator embodiment two's plan view;

[0025] Figure 6 The utility model discloses a vibration isolator mounting structure's perspective view;

[0026] Figure 7 The utility model discloses a vibration isolator mounting structure's exploded view;

[0027] Figure 8 The utility model discloses a vibration isolator mounting structure's another implementation's exploded view.

[0028] The following description is made in conjunction with the accompanying drawings:

[0029] 1, shell;101, end plate;1011, center hole;102, side ear;2, center shaft;201, limit shaft part;202, flange disc;203, outer thread;204, lower shaft;205, upper shaft;3, first elastic body;4, end cover;401, limit boss;402, first limit hole;403, second limit hole;5, second elastic body;6, third elastic body;7, bushing;8, mounting bracket;801, mounting hole;802, limit slot;803, limit column;9, fastener;10, gasket. Specific implementation

[0030] The present application will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0031] The embodiments of the present application will be described below by specific examples. Those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in the specification. Obviously, the described embodiments are only some of the embodiments of the present application, not all. The present application can also be implemented or applied by other different specific embodiments, and each detail in the specification can be modified or changed based on different views and applications without departing from the spirit of the present application. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the present application.

[0032] It is to be appreciated that various aspects described herein are described in the context of examples. It should be appreciated that the aspects described herein can be embodied in a wide variety of forms and that any specific structure and / or function described herein is merely illustrative. Based on the teachings herein one skilled in the art should appreciate that an aspect described herein can be implemented independently of any other aspects and that an aspect described herein can be implemented both as any number of software and / or hardware structures.

[0033] It is also important to note that the use of particular descriptive terms in the description is by way of illustration only and not by way of limitation. The drawings are not necessarily to scale.

[0034] Furthermore, in the following description, numerous specific details are set forth in order to provide a thorough understanding of the examples. However, it will be apparent to one skilled in the art that the examples can be practiced without these specific details.

[0035] The technical solutions provided by the embodiments of the present application are described below in combination with the drawings.

[0036] Embodiment One

[0037] Referring to Figures 1 to 4 The utility model provides a vibration isolator, include: casing 1, install in casing 1 and can be relative to casing 1 and do up and down floating center shaft 2, set up between casing 1 and center shaft 2's first elastomer 3 and arrange the end cover 4 above casing 1, and the end cover 4 with casing 1 between setting has the second elastomer 5.

[0038] The shell 1 is provided with a side ear 102 with a hole, and the vibration isolator is fixed through the side ear 102 when in use; the central shaft 2 is used for connecting with a vibration object (i.e. a device using the vibration isolator), and the end cover 4 is used for bearing the vibration object. When the device operates to generate vibration, the vibration is transmitted to the vibration isolator, and when an axial upward force is applied, the first elastic body 3 between the central shaft 2 and the shell 1 is relied on for vibration reduction, and when an axial downward force is applied, the second elastic body 5 between the end cover 4 and the shell 1 is relied on for vibration reduction. The first elastic body 3 and the second elastic body 5 both have good elastic deformation capacity, and the vibration energy is absorbed through compression and stretching deformation of the first elastic body 3 and the second elastic body 5, so as to reduce the vibration. Since the vibration isolator can rely on the first elastic body 3 and the second elastic body 5 to buffer and reduce the axial upward force and the axial downward force respectively, the vibration reduction effect is greatly improved.

[0039] Further, one end of the central shaft 2 protrudes upward to the end cover 4, and is fixedly connected with an external vibration isolator mounting support. A rotation limiting structure is arranged between the central shaft 2 and the end cover 4, and is used for limiting the rotation of the central shaft 2 relative to the end cover 4. In addition, the end cover 4 is provided with a first limiting feature, which is used for cooperating with the external vibration isolator mounting support to limit the end cover 4 in the circumferential direction. In this way, the rotation limiting structure is arranged in the vibration isolator, specifically, a structure for limiting the rotation of the central shaft 2 relative to the end cover 4 is arranged between the central shaft 2 and the end cover 4, and the first limiting feature is arranged on the end cover 4 to cooperate with the external vibration isolator mounting support to limit the end cover 4 in the circumferential direction, so as to prevent the central shaft 2 from rotating with the external fastener when the vibration isolator is assembled or disassembled, greatly improving the smoothness and efficiency of the vibration isolator assembly and disassembly. Moreover, this structure design eliminates the need for an additional special thin open wrench when the vibration isolator is assembled or disassembled, which can reduce the number of spare parts of the shock absorber, avoid the problem of difficult storage and easy loss of special tools, reduce the use cost and management difficulty, and improve the convenience of using the vibration isolator. In addition, the utility model can further reduce the installation space of the vibration isolator and reduce the weight of the vibration isolator, so that the installation of the vibration isolator in a narrow space becomes easier, and the application scenarios and application range of the vibration isolator are significantly widened.

[0040] As shown in Figure 1 The first limiting feature in the embodiment is at least one limiting boss 401 arranged on the top of the end cover 4, and the number of the limiting boss 401 is specifically but not limited to four, and the four limiting bosses 401 are arranged in a ring shape at equal intervals. The shape of the limiting boss 401 is not limited, for example, circular, square, trapezoidal or irregular shape, etc.

[0041] Correspondingly, the same number of limiting grooves as the number of limiting bosses 401 is arranged on the external vibration isolator mounting bracket, and each limiting boss 401 falls into the corresponding limiting groove during installation of the vibration isolator. The end cover 4 cannot be rotated under the cooperation of the limiting boss 401 and the limiting groove.

[0042] The limiting groove can be the same shape as the limiting boss 401 or larger in size than the limiting boss 401 to facilitate assembly and alignment.

[0043] Referring to Figure 3 and Figure 4 , the rotation limiting structure includes a second limiting feature arranged in the middle of the end cover 4 and a third limiting feature arranged in the middle of the central shaft 2. The second limiting feature cooperates with the third limiting feature to limit the rotation of the central shaft 2 in the circumferential direction.

[0044] Specifically, the second limiting feature is a second limiting hole 403, which can be a flat hole, a rectangular hole, a waist-shaped hole, or other non-circular holes. The third limiting feature is a limiting shaft portion 201 that matches the shape of the second limiting hole 403. The central shaft 2 passes through the second limiting hole 403, and the limiting shaft portion 201 cooperates with the second limiting hole 403, thereby limiting the rotation of the central shaft 2 relative to the end cover 4 through the cooperation of the second limiting hole 403 on the end cover 4 and the limiting shaft portion 201 on the central shaft 2. Since the end cover 4 is also limited in rotation by the limiting boss 401, the rotation of the central shaft 2 during installation and removal of the vibration isolator can be completely limited.

[0045] In this embodiment, the shell 1 is a cylindrical structure with a top and no bottom. The top of the shell 1 is provided with an end plate 101, and the middle of the end plate 101 is provided with a central hole 1011 through which the central shaft 2 passes. The second elastic body 5 is arranged between the end plate 101 and the end cover 4. The second elastic body 5 can be a spring (such as a coil spring, a butterfly spring, a gas spring, etc.), a soft rubber elastic body (such as natural rubber or synthetic rubber, etc.), or a spring piece. In this embodiment, the second elastic body 5 is preferably rubber and is annular. Optionally, the upper and lower ends of the second elastic body 5 can be fixedly connected to the end plate 101 and the end cover 4, respectively, by adhesive bonding.

[0046] As Figure 4As shown, the central shaft 2 is a variable diameter shaft, which is provided with an upper shaft 205 and a lower shaft 204 with a diameter larger than that of the upper shaft 205, and a limiting shaft portion 201 is connected between the upper shaft 205 and the lower shaft 204. The bottom of the lower shaft 204 of the central shaft 2 extends radially outward to form a flange plate 202, which is located in the shell 1, and the first elastic body 3 is arranged between the flange plate 202 and the end plate 101. Similarly, the first elastic body 3 can be a spring (such as a coil spring, a butterfly spring, a gas spring, etc.), a soft rubber elastic body (such as natural rubber or synthetic rubber, etc.), or a spring piece, and the first elastic body 3 is preferably rubber, and the first elastic body 3 is also annular. Alternatively, the upper and lower ends of the first elastic body 3 can be fixedly connected to the flange plate 202 and the end plate 101 respectively by means of adhesive.

[0047] As shown, the outer thread 203 is arranged on the cylindrical surface of the upper shaft 205 of the central shaft 2 protruding out of one end of the end cover 4, so as to be fixedly connected to the external vibration isolator mounting bracket by means of a fastener.

[0048] It is worth mentioning that the utility model vibration isolator further comprises a third elastic body 6. Figure 3 and Figure 4 As shown, the third elastic body 6 is sleeved on the lower shaft 204 of the central shaft 2 and arranged in the central hole 1011 of the end plate 101, and the third elastic body 6 is also arranged in the inner holes of the first elastic body 3 and the second elastic body 5. Similarly, the third elastic body 6 can be a spring (such as a gas spring, etc.), a soft rubber elastic body (such as natural rubber or synthetic rubber, etc.), or a spring piece, and the third elastic body 6 is preferably rubber. The third elastic body 6 is also annular, and the upper and lower ends of the third elastic body 6 abut against the end cover 4 and the flange plate 202 respectively. Alternatively, the upper and lower ends of the third elastic body 6 can be fixedly connected to the end cover 4 and the flange plate 202 respectively by means of adhesive.

[0049] In addition, the third elastic body 6 is sleeved with a bushing 7, the outer ring of the third elastic body 6 is provided with an annular accommodating groove, the bushing 7 is arranged in the annular accommodating groove, and the inner ring of the end plate 101 abuts against the bushing 7. The bushing 7 can be made of metal.

[0050] The utility model discloses a third elastic body 6, when the damper is subjected to radial force, and the third elastic body 6 is buffered, and the damping effect can be further improved. Meanwhile, the third elastic body 6 is sleeved with a bushing 7, which can increase the stress area of the third elastic body 6 and prevent the third elastic body 6 from being damaged by the end plate 101.

[0051] Embodiment two

[0052] The difference between the embodiment and the embodiment one is that the first limiting feature is different.

[0053] Specifically, as shown in Figure 5As shown, the first limiting feature in the embodiment is at least one first limiting hole 402 provided on the top of the end cover 4. The number of the first limiting hole 402 is specifically but not limited to six, and the six first limiting holes 402 are distributed in a ring shape at equal intervals around the second limiting hole 403. The shape of the first limiting hole 402 is not limited, for example, circular, square or irregular shape, etc.

[0054] Correspondingly, the same number of limiting columns as the first limiting hole 402 needs to be provided on the external vibration isolator mounting bracket, and the limiting column falls into the corresponding first limiting hole 402 when the vibration isolator is installed. Under the cooperation of the limiting column and the first limiting hole 402, the end cover 4 cannot be rotated.

[0055] Embodiment three

[0056] In addition, in other embodiments of the utility model, the first limiting feature can also simultaneously include at least one limiting boss 401 and the first limiting hole 402 provided on the top of the end cover 4.

[0057] Correspondingly, the same number of limiting grooves as the limiting boss 401 needs to be provided on the external vibration isolator mounting bracket, and the same number of limiting columns as the first limiting hole 402 needs to be provided on the external vibration isolator mounting bracket. When the vibration isolator is installed, the limiting boss 401 falls into the corresponding limiting groove, and the limiting column falls into the corresponding first limiting hole 402. Under the cooperation of the limiting boss 401 and the limiting groove, and under the cooperation of the limiting column and the first limiting hole 402, the end cover 4 cannot be rotated.

[0058] The utility model also provides a vibration isolator mounting structure, including mounting bracket 8 and vibration isolator as any one of embodiment one to embodiment three. The shape of the mounting bracket 8 is not limited, and is specifically determined by the equipment using the vibration isolator. The mounting bracket 8 is provided with a mounting hole 801, and the center shaft 2 passes through the mounting hole 801 and is fixedly connected with the mounting bracket 8 through the fastener 9 and the gasket 10, so that the bottom of the mounting bracket 8 abuts against the top of the end cover 4.

[0059] Further, the bottom of the mounting bracket 8 is provided with a fourth limiting feature, and the fourth limiting feature cooperates with the first limiting feature on the end cover 4 to form a circumferential limiting for the end cover 4.

[0060] As shown in Figure 6 and Figure 7 The first limiting feature is the same as that in embodiment one, that is, the first limiting feature is four limiting bosses 401 provided on the top of the end cover 4, the fourth limiting feature is four limiting grooves 802 provided on the bottom of the mounting bracket 8 and corresponding to the number of the limiting boss 401, and the limiting boss 401 cooperates in the limiting groove 802, so that the end cover 4 cannot be rotated.

[0061] As Figure 8 shown, the first limiting feature is the same as that of embodiment two, that is, the first limiting feature is six first limiting holes 402 provided on the top of the end cover 4, and the fourth limiting feature is six limiting columns 803 provided on the bottom of the mounting bracket 8 and corresponding to the first limiting holes 402 in number, the limiting columns 803 being fitted in the first limiting holes 402, so that the end cover 4 cannot rotate.

[0062] Alternatively, the first limiting feature is the same as that of embodiment three, that is, the first limiting feature can simultaneously include the limiting boss 401 and the first limiting hole 402 provided on the top of the end cover 4, and the fourth limiting feature is the limiting groove 802 provided on the bottom of the mounting bracket 8 and corresponding to the limiting boss 401 in number, and the limiting column 803 corresponding to the first limiting hole 402 in number, the limiting boss 401 being fitted in the limiting groove 802, and the limiting column 803 being fitted in the first limiting hole 402, so that the end cover 4 cannot rotate.

[0063] Therefore, the vibration isolator and the mounting structure thereof can prevent the central shaft 2 from rotating with the external fastener when the vibration isolator is assembled or disassembled, greatly improving the smoothness and efficiency of the vibration isolator assembly and disassembly, and the structure design eliminates the need for an additional special thin open wrench when the vibration isolator is assembled or disassembled, reduces the number of spare parts of the shock absorber, avoids the problem of difficult storage and easy loss of special tools, reduces the use cost and management difficulty, improves the convenience of the vibration isolator, and further reduces the volume and installation space of the vibration isolator, reduces the weight of the vibration isolator, makes the installation of the vibration isolator in a small space easier, significantly widens the application scenarios and application range of the vibration isolator.

[0064] The same or similar parts among the various embodiments in the specification can be referred to each other, and each embodiment focuses on the differences from other embodiments.

[0065] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto, any skilled person in the art can easily think of changes or replacements within the technical range disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An isolator comprising a housing (1), a central shaft (2) mounted to said housing (1) and floating up and down relative to said housing (1), and a first elastic body (3) arranged between said housing (1) and said central shaft (2), characterized in that: Further comprising an end cover (4) arranged above the shell (1), a second elastic body (5) is arranged between the end cover (4) and the shell (1), one end of the central shaft (2) protrudes upwardly out of the end cover (4), and a rotation limiting structure is arranged between the central shaft (2) and the end cover (4) for limiting the rotation movement of the central shaft (2) relative to the end cover (4), and the end cover (4) is provided with a first limiting feature for cooperating with an external vibration isolator mounting bracket to form circumferential limiting of the end cover (4).

2. The vibration isolator of claim 1, wherein: The first limiting feature is at least one limiting boss (401) and / or a first limiting hole (402) provided on the top of the end cover (4).

3. The vibration isolator of claim 1, wherein: The rotation limiting structure comprises a second limiting feature provided in the middle of the end cover (4) and a third limiting feature provided in the middle of the central shaft (2), and the second limiting feature cooperates with the third limiting feature to form circumferential limiting of the central shaft (2).

4. The vibration isolator of claim 3, wherein: The second limiting feature is a non-circular second limiting hole (403), and the third limiting feature is a limiting shaft portion (201) matched with the shape of the second limiting hole (403), the central shaft (2) passes through the second limiting hole (403) and makes the limiting shaft portion (201) cooperate in the second limiting hole (403).

5. The vibration isolator of claim 1, wherein: The top of the shell (1) is provided with an end plate (101), the middle of the end plate (101) is provided with a central hole (1011) for the central shaft (2) to pass through, and the second elastic body (5) is between the end plate (101) and the end cover (4); the other end of the central shaft (2) extends outwardly as a flange disc (202), which is located in the shell (1), and the first elastic body (3) is between the flange disc (202) and the end plate (101).

6. The vibration isolator of claim 5, wherein: Further comprising a third elastic body (6) sleeved on the central shaft (2) and arranged in the central hole (1011), and the upper and lower ends of the third elastic body (6) abut against the end cover (4) and the flange disc (202) respectively; a bushing (7) is sleeved on the third elastic body (6), and the inner ring of the end plate (101) abuts against the bushing (7).

7. The vibration isolator of claim 6, wherein: The first elastic body (3), the second elastic body (5) and the third elastic body (6) are springs, soft elastic bodies or elastic sheets.

8. The isolator of claim 1, wherein: An outer thread (203) is arranged on the cylindrical surface of the end of the central shaft (2) protruding out of the end cover (4).

9. An isolator mounting structure characterized by comprising: The vibration isolator mounting structure comprises a mounting bracket (8) and the vibration isolator according to any one of claims 1 to 8, the mounting bracket (8) is provided with a mounting hole (801), the central shaft (2) passes through the mounting hole (801) and is fixedly connected with the mounting bracket (8) through a fastener (9), and meanwhile the bottom of the mounting bracket (8) is attached to the top of the end cover (4); the bottom of the mounting bracket (8) is provided with a fourth limiting feature, and the fourth limiting feature cooperates with the first limiting feature to form circumferential limiting of the end cover (4).

10. The vibration isolator mounting structure according to claim 9, wherein: the first limiting feature is at least one limiting boss (401) provided on the top of the end cover (4), the fourth limiting feature is a limiting groove (802) corresponding to the limiting boss (401) in number, and the limiting boss (401) is fitted into the limiting groove (802); or the first limiting feature is at least one first limiting hole (402) provided on the top of the end cover (4), the fourth limiting feature is a limiting column (803) corresponding to the first limiting hole (402) in number, and the limiting column (803) is fitted into the first limiting hole (402); or the first limiting feature is at least one limiting boss (401) and at least one first limiting hole (402) provided on the top of the end cover (4), the fourth limiting feature is a limiting groove (802) corresponding to the limiting boss (401) in number and a limiting column (803) corresponding to the first limiting hole (402) in number, and the limiting boss (401) is fitted into the limiting groove (802), and meanwhile the limiting column (803) is fitted into the first limiting hole (402).

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