Composite spring

Abstract

The utility model belongs to the technical field of buffering and damping, and particularly relates to a composite spring which comprises a spring body, a polyurea elastic body is sleeved on the outer side of the spring body, mounting seats are arranged at two ends of the polyurea elastic body, and an inner ring and an outer ring which are respectively abutted against the inner wall and the outer wall of the polyurea elastic body are arranged on the mounting seats. The spring body is located on the inner side of the inner ring and is always in a compressed state, and a telescopic supporting assembly is arranged between the two installation bases and located on the inner side of the spring body. By arranging the polyurea elastomer and the spring body which are sleeved with each other and arranging the telescopic supporting assembly on the inner side of the spring body, on one hand, the overall vibration absorption efficiency can be improved conveniently, on the other hand, the compression amount of the spring body can be reduced, one-way compression of the spring body can be guaranteed, and therefore the service life of the spring body is prolonged; and meanwhile, the spring body can be sealed by arranging the mounting seat, so that the spring body is prevented from being corroded, in addition, the overall mounting of the composite spring can be facilitated, and the universality is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of buffering and shock absorption, and in particular relates to a composite spring. Background Art

[0002] Shock absorbers are widely used in many fields such as buildings, bridges, vehicles, furniture, etc. The traditional shock absorber structure is generally realized by simply using springs or damping materials, and the vibration energy is absorbed by the buffering of springs or damping materials.

[0003] However, in actual use, a simple spring buffer structure is prone to resonance and is easily corroded when exposed to the outside, while a buffer with a simple damping material structure has a limited elastic coefficient, and its vibration absorption effect and efficiency are difficult to meet the use requirements of some places.

[0004] In order to solve the above problems, a composite spring is proposed in this application. Utility Model Content

[0005] In order to solve the problems raised in the above background technology, the utility model provides a composite spring, which has the characteristics of large vibration absorption amplitude and long service life.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a composite spring, comprising a spring body, a polyurea elastomer is sleeved on the outside of the spring body, mounting seats are provided at both ends of the polyurea elastomer, and the mounting seats are provided with an inner ring and an outer ring respectively abutting against the inner wall and outer wall of the polyurea elastomer; the spring body is located inside the inner ring and is always in a compressed state, and a telescopic support component is provided between two groups of the mounting seats and inside the spring body.

[0007] As a preferred embodiment of the composite spring of the utility model, a plurality of groups of mounting holes are provided on the mounting seat.

[0008] As a preferred embodiment of the composite spring of the utility model, the middle parts of the inner ring and the outer ring are horizontally screwed with top screws, and the polyurea elastomer is provided with an avoidance hole matched with the top screw.

[0009] As a preferred embodiment of the composite spring of the utility model, the surface of the polyurea elastomer is smooth, and the distance between the inner ring and the outer ring is smaller than the thickness of the polyurea elastomer.

[0010] As a preferred embodiment of the composite spring of the utility model, the telescopic support assembly includes a first sealing sleeve and a second sealing sleeve which are sleeved on each other, and the first sealing sleeve and the second sealing sleeve are fixedly connected to the two groups of mounting seats respectively.

[0011] As a preferred embodiment of the composite spring of the utility model, the first sealing sleeve and the second sealing sleeve are clearance-matched, and the sum of the lengths of the first sealing sleeve and the second sealing sleeve is greater than the height of the polyurea elastomer.

[0012] As a preferred embodiment of the composite spring of the utility model, a sealing ring abutting against an inner wall of the second sealing sleeve is detachably provided on the top of the first sealing sleeve.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: by arranging a polyurea elastomer and a spring body which are nested with each other, and arranging a telescopic support assembly inside the spring body, on the one hand, it is convenient to improve the overall vibration absorption efficiency, and on the other hand, it can reduce the compression amount of the spring body and ensure the unidirectional compression of the spring body, thereby increasing the service life of the spring body; at the same time, by arranging a mounting seat, the spring body can be closed to prevent the spring body from being corroded, and it can also facilitate the installation of the composite spring as a whole, thereby improving the versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0015] Figure 1 It is an axonometric drawing of the utility model;

[0016] Figure 2 It is a structural schematic diagram of the telescopic support assembly in the utility model;

[0017] Figure 3 It is a cross-sectional view of the utility model;

[0018] Figure 4 It is a schematic diagram of the installation of the inner ring and the outer ring in the utility model.

[0019] In the figure: 1. spring body; 2. polyurea elastomer; 3. mounting seat; 4. inner ring; 5. outer ring; 6. telescopic support assembly; 601. first sealing sleeve; 602. second sealing sleeve; 603. sealing ring; 7. mounting hole; 8. top screw. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Example 1

[0022] like Figure 1 and Figure 2 As shown;

[0023] The composite spring comprises a spring body 1, a polyurea elastomer 2 is sleeved on the outer side of the spring body 1, mounting seats 3 are arranged at both ends of the polyurea elastomer 2, and the mounting seats 3 are provided with an inner ring 4 and an outer ring 5 respectively abutting against the inner wall and outer wall of the polyurea elastomer 2; the spring body 1 is located inside the inner ring 4 and is always in a compressed state, and a telescopic support component 6 is provided between the two sets of mounting seats 3 and inside the spring body 1.

[0024] It should be noted that: in this embodiment, the polyurea elastomer 2 is made of elastic material, and in actual use, the polyurea elastomer 2 can be configured as a hollow columnar structure as required.

[0025] In the present embodiment, by arranging the polyurea elastomer 2 and the spring body 1 which are nested with each other, and arranging the telescopic support assembly 6 on the inner side of the spring body 1, on the one hand, it is convenient to improve the overall vibration absorption efficiency, and on the other hand, it can reduce the compression amount of the spring body 1 and ensure the unidirectional compression of the spring body 1, thereby increasing the service life of the spring body 1; at the same time, by arranging the mounting seat 3, the spring body 1 can be closed, thereby preventing the spring body 1 from being corroded, and in addition, it can facilitate the installation of the composite spring as a whole, thereby improving the versatility.

[0026] In an optional embodiment, a plurality of mounting holes 7 are provided on the mounting seat 3. The shape of the mounting seat 3 can be set to be rectangular or circular according to actual needs, and the mounting holes 7 can be set to be circular holes, waist-shaped holes or threaded holes according to actual needs.

[0027] like Figure 4 As shown;

[0028] In an optional embodiment, a top screw 8 is horizontally screwed in the middle of the inner ring 4 and the outer ring 5, and an avoidance hole cooperating with the top screw 8 is provided on the polyurea elastomer 2. The surface of the polyurea elastomer 2 is smooth, and the distance between the inner ring 4 and the outer ring 5 is smaller than the thickness of the polyurea elastomer 2.

[0029] In this embodiment, the polyurea elastomer 2 is tightly sealed against the inner ring 4 and the outer ring 5, thereby ensuring that the spring body 1 is sealed to prevent corrosion, thereby increasing the use range of the composite spring and various complex use environments.

[0030] like Figure 3 As shown;

[0031] In an optional embodiment, the telescopic support assembly 6 includes a first sealing sleeve 601 and a second sealing sleeve 602 which are sleeved on each other, the first sealing sleeve 601 and the second sealing sleeve 602 are respectively fixedly connected to the two sets of mounting seats 3, the first sealing sleeve 601 and the second sealing sleeve 602 are clearance-matched, and the sum of the lengths of the first sealing sleeve 601 and the second sealing sleeve 602 is greater than the height of the polyurea elastomer 2.

[0032] In an optional embodiment, a sealing ring 603 is detachably provided on the top of the first sealing sleeve 601 and abuts against the inner wall of the second sealing sleeve 602 .

[0033] In this embodiment: the sealing ring 603 is in sealing contact with the inner wall of the second sealing sleeve 602, so that when the first sealing sleeve 601 is compressed into the second sealing sleeve 602, the gas in the second sealing sleeve 602 is compressed, thereby providing a certain elastic potential energy to prevent the spring body 1 from generating a large amount of compression. At the same time, the first sealing sleeve 601 and the second sealing sleeve 602 can ensure that the spring body 1 can only be compressed along its contraction direction, thereby ensuring the stability of the overall use of the composite spring and preventing the spring body 1 from being damaged.

[0034] The working principle and use process of the utility model are as follows: the spring body 1 is placed in the polyurea elastomer 2, and the two sets of mounting seats 3 are respectively placed at the two ends of the polyurea elastomer 2. At this time, the two ends of the polyurea elastomer 2 are respectively fixed by the inner ring 4 and the outer ring 5. At the same time, the first sealing sleeve 601 and the second sealing sleeve 602 are coaxial and enter the second sealing sleeve 602. The sealing ring 603 is sealed against the inner wall of the second sealing sleeve 602. The top screw 8 is screwed into the internal threaded holes in the middle of the inner ring 4 and the outer ring 5 to complete the assembly of the composite spring as a whole. The composite spring can be installed on the equipment through the mounting hole 7 for use.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A composite spring comprising a spring body (1), characterized in that: The spring body (1) is sleeved with a polyurea elastomer (2), and mounting seats (3) are provided at both ends of the polyurea elastomer (2). The mounting seats (3) are provided with an inner ring (4) and an outer ring (5) which are respectively in contact with the inner wall and the outer wall of the polyurea elastomer (2); The spring body (1) is located inside the inner ring (4) and is always in a compressed state. A telescopic support assembly (6) is provided between the two groups of mounting seats (3) and inside the spring body (1).

2. The composite spring according to claim 1, characterized in that: The mounting seat (3) is provided with a plurality of groups of mounting holes (7).

3. The composite spring according to claim 2, characterized in that: A top screw (8) is horizontally screwed to the middle of the inner ring (4) and the outer ring (5), and an avoidance hole cooperating with the top screw (8) is provided on the polyurea elastomer (2).

4. The composite spring according to claim 3, characterized in that: The surface of the polyurea elastomer (2) is smooth, and the distance between the inner ring (4) and the outer ring (5) is smaller than the thickness of the polyurea elastomer (2).

5. The composite spring according to claim 4, characterized in that: The telescopic support assembly (6) comprises a first sealing sleeve (601) and a second sealing sleeve (602) which are sleeved on each other, and the first sealing sleeve (601) and the second sealing sleeve (602) are respectively fixedly connected to the two groups of mounting seats (3).

6. The composite spring according to claim 5, characterized in that: The first sealing sleeve (601) and the second sealing sleeve (602) are loosely matched, and the sum of the lengths of the first sealing sleeve (601) and the second sealing sleeve (602) is greater than the height of the polyurea elastomer (2).

7. The composite spring according to claim 6, characterized in that: A sealing ring (603) is detachably provided on the top of the first sealing sleeve (601) and abuts against the inner wall of the second sealing sleeve (602).

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