Shock Absorber

Abstract

The present invention relates to a shock absorption device, which comprises an upper housing, a movable disk, a suspension spring, a plurality of damping springs, a plurality of buffer springs, a suspension spring and a mass block; the upper housing includes an upper bottom plate and a lower bottom plate, a hollow inner cavity surrounded by side walls is formed between the two, and a communication hole is opened on the lower bottom plate; the movable disk includes a main body located in the inner cavity, an additional body connected to the main body and at least partially located in the communication hole, and a plurality of balls movably installed on the main body and in rolling contact with the upper surface of the lower bottom plate; the suspension spring is arranged longitudinally in the inner cavity, and one end of the suspension spring is connected to the upper bottom plate; the damping spring is arranged in the inner cavity and one end thereof is fixedly connected to the side wall; the buffer spring is arranged in the communication hole and one end thereof is fixedly connected to the hole wall of the communication hole; the mass block is suspended below the additional body through the suspension spring. The shock absorption device further includes a lower housing. The shock absorption device of the present invention has a simple structure, is easy to implement, has a good shock absorption effect, and has a good promotion prospect.

Description

Technical Field

[0001] The present invention relates to a shock absorption device. Background Art

[0002] The seismic resistance level of buildings and the like has been increasingly emphasized. With the improvement of seismic requirements, how to design a shock absorption device with a simple structure and good performance is a problem to be solved. Summary of the Invention

[0003] The purpose of the present invention is to provide a shock absorption device with a simple structure and good shock absorption performance.

[0004] To achieve the above purpose, the technical solution adopted by the present invention is:

[0005] A shock absorption device includes an upper housing, a movable disk, a suspension spring, a plurality of damping springs, a plurality of buffer springs, a suspension spring and a mass block;

[0006] The upper housing includes an upper bottom plate and a lower bottom plate. A hollow inner cavity surrounded by side walls is formed between the upper bottom plate and the lower bottom plate, and a communication hole communicating the inner cavity with the outside of the upper housing is opened on the lower bottom plate;

[0007] The movable disk includes a main body located in the inner cavity, an additional body connected to the main body and at least partially located in the communication hole, and a plurality of balls movably installed on the main body and in rolling contact with the upper surface of the lower bottom plate;

[0008] The suspension spring is arranged longitudinally in the inner cavity, and one end of the suspension spring is connected to the upper bottom plate;

[0009] The damping spring is arranged radially along the upper housing in the inner cavity, and one end of the damping spring is fixedly connected to the side wall;

[0010] The buffer spring is arranged radially along the upper housing in the communication hole, and one end of the buffer spring is fixedly connected to the hole wall of the communication hole or one end of the buffer spring is connected to the additional body;

[0011] The mass block is suspended below the additional body through the suspension spring.

[0012] The other end of the suspension spring is connected to the movable disk.

[0013] The buffer spring is a disc spring.

[0014] An installation groove is opened on the lower surface of the movable disk, the upper part of the ball is installed in the installation groove, and the lower part of the ball protrudes from the movable disk.

[0015] The damping springs are evenly distributed in the inner cavity, and the buffer springs are evenly distributed in the communication holes.

[0016] The cross-section of the upper housing and the cross-section of the movable disk are both circular.

[0017] The shock absorption device further includes a lower housing, the lower housing is installed below the upper housing, and the mass is located in the lower housing.

[0018] The outer side surface of the lower housing is flush with the outer side surface of the upper housing.

[0019] Due to the application of the above technical solutions, the present invention has the following advantages compared with the prior art: The shock absorption device of the present invention has a simple structure, is easy to implement, has a good shock absorption effect, and has a good promotion prospect. Description of the Drawings

[0020] Att Figure 1 It is a front sectional view schematic diagram of the shock absorption device of Embodiment 1 of the present invention.

[0021] Att Figure 2 It is a top sectional view schematic diagram of the shock absorption device of Embodiment 1 of the present invention.

[0022] Att Figure 3 It is a schematic diagram of the movable disk in the shock absorption device of Embodiment 1 of the present invention.

[0023] Att Figure 4 It is a front sectional view schematic diagram of the shock absorption device of Embodiment 2 of the present invention.

[0024] Att Figure 5 It is a schematic diagram of a damping spring adopted in the shock absorption device of the present invention.

[0025] In the above drawings: 1. Upper housing; 2. Movable disk; 21. Main body; 22. Additional body; 23. Ball; 3. Suspension spring; 4. Damping spring; 5. Buffer spring; 6. Suspension spring; 7. Mass; 8. Lower housing; 9. Communication hole;

[0026] 101. First expansion bladder; 102. Second expansion bladder; 103. Two-way valve; 104. Damping energy dissipation material. Detailed Embodiment

[0027] The present invention will be further described below in conjunction with the embodiments shown in the drawings.

[0028] Embodiment 1: As shown in Att Figure 1 to Att Figure 3 shown, a shock absorption device includes an upper housing 1, a movable disk 2, a suspension spring 3, a plurality of damping springs 4, a plurality of buffer springs 5, a suspension spring 6 and a mass 7.

[0029] The upper housing 1 is generally cylindrical in shape, and its cross-section is circular. The upper housing 1 includes an upper bottom plate and a lower bottom plate, and a hollow inner cavity surrounded by side walls is formed between the upper bottom plate and the lower bottom plate. A communication hole 9 communicating the inner cavity with the outside of the upper housing 1 is provided on the lower bottom plate, and the communication hole 9 is located at the center of the lower bottom plate.

[0030] The cross-section of the movable disk 2 is circular. The movable disk 2 includes a main body 21, an additional body 22 and a number of balls 23. The main body 21 is arranged in the inner cavity of the upper housing 1, the additional body 22 is connected to the main body 21 and is located below the main body 21, and at least a part (lower part) of the additional body 22 is located in the communication hole 9. The balls 23 are movably installed on the lower surface of the main body, and the balls 23 are in rolling contact with the upper surface of the lower bottom plate. For example, an installation groove is provided on the lower surface of the movable disk 2, the upper part of the ball 23 is installed in the installation groove, the lower part of the ball 23 protrudes from the movable disk 2, and the balls 23 are arranged in a ring shape and are close to the edge of the main body 21.

[0031] The suspension spring 3 is arranged longitudinally in the inner cavity, and one end (upper end) of the suspension spring is connected to the upper bottom plate of the upper housing 1. The other end (lower end) of the suspension spring 3 is a free end, or is connected to the upper surface of the main body 21 of the movable disk 2. When the other end (lower end) of the suspension spring 3 is a free end, a plurality of such suspension springs 3 can be arranged; when the other end (lower end) of the suspension spring 3 is connected to the upper surface of the main body 21 of the movable disk 2, generally one or two suspension springs 3 are arranged at the central position of the movable disk 2. The suspension spring 3 can buffer the longitudinal vibration of the movable disk 2.

[0032] The damping spring 4 is arranged radially in the inner cavity of the upper housing 1, and the damping springs 4 are evenly distributed in the inner cavity. One end of the damping spring 4 is fixedly connected to the inner surface of the side wall of the upper housing 1, and the other end is a free end and corresponds to the side surface of the main body 21 of the movable disk 2. When the movable disk 2 moves in its circumferential direction, the damping shock absorption function is realized through the damping spring 4.

[0033] The buffer spring 5 is arranged radially in the communication hole 9, and the buffer springs 5 are evenly distributed in the communication hole 9. The number of the buffer springs 5 can be less than the number of the damping springs 4. One end (outer end, that is, the end farther from the center of the communication hole 9) of the buffer spring 5 is fixedly connected to the hole wall of the communication hole 9, and the other end (inner end, that is, the end closer to the center of the communication hole 9) is a free end and corresponds to the side surface of the additional body 22; or, one end (inner end, that is, the end closer to the center of the communication hole 9) of the buffer spring 5 is fixedly connected to the side surface of the additional body 22, and the other end (outer end, that is, the end farther from the center of the communication hole 9) is a free end and corresponds to the hole wall of the communication hole 9. The buffer spring 5 can be an ordinary spring or a disc spring. The buffer spring 5 mainly buffers the movement of the movable disk 2 and also has a small part of the shock absorption effect.

[0034] The mass block 7 is suspended below the additional body 22 by the suspension spring 6, and both the mass block 7 and the suspension spring 6 are located outside the upper housing 1. The mass block 7 changes its suspension point by the movement of the movable disk 2.

[0035] Embodiment 2: As shown in the appendix Figure 4 A shock absorber, which is different from that of Embodiment 1 in that: the shock absorber further includes a lower housing 8, the lower housing 8 is connected to the upper housing 1 and installed below the lower housing 8, and the outer side surface of the lower housing 8 is flush with the outer side surface of the upper housing 1, so that the mass block 7 is located inside the lower housing 8.

[0036] The damping springs adopted in the above two embodiments can be existing damping springs or the following new damping springs.

[0037] As shown in the appendix Figure 5 The damping spring includes a first telescopic bladder 101, a second telescopic bladder 102 and a two-way valve 103.

[0038] A first cavity is formed inside the first telescopic bladder 101, a second cavity is formed inside the second telescopic bladder 102, the first cavity and the second cavity are communicated, and the two-way valve 103 is arranged at the communication part of the first cavity and the second cavity. The first cavity is filled with a damping energy-consuming material 104 (such as asphalt ointment) with a certain fluidity, and a negative pressure environment is formed inside the second cavity.

[0039] Specifically, the first telescopic bladder 101 and the second telescopic bladder 102 are arranged in parallel. The first telescopic bladder 101 includes a first telescopic part and a first support part arranged at the bottom of the first telescopic part; the second telescopic bladder 102 includes a second telescopic part and a second support part arranged at the bottom of the second telescopic part; the first support part and the second support part are connected to form the communication part of the first cavity and the second cavity. The first telescopic part includes a plurality of first bladder monomers stacked and internally communicated, and the second telescopic part includes a plurality of second bladder monomers stacked and internally communicated. The outer shapes of the first bladder monomer and the second bladder monomer are both composed of curved surfaces.

[0040] The two-way valve 103 includes a steel sheet with one end rotatably connected to the communication part of the first cavity and the second cavity and the other end being a free end.

[0041] The above damping spring has an initial state without force. In the initial state, the damping energy dissipation material 104 filled in the first cavity elongates the length of the first telescopic bladder 101 to the required value, and the negative pressure environment formed in the second cavity shortens the length of the second telescopic bladder 102 to the shortest. When the first telescopic bladder 101 of the damping spring is subjected to force, it shortens and deforms, causing part of the damping energy dissipation material 104 to flow into the second telescopic bladder 102 through the two-way valve 103, and the second telescopic bladder 102 elongates and deforms appropriately. In this process, the buffering function is achieved through the damping energy dissipation material 104. When the external force is removed, the damping energy dissipation material 104 flows back into the first telescopic bladder 101 through the two-way valve 103.

[0042] The damping spring can also adopt the following structural form: The damping spring includes a telescopic bladder with a cavity, and the telescopic bladder is filled with a fluid damping energy dissipation material 104 that plays a buffering role when the telescopic bladder is deformed by force.

[0043] The telescopic bladder of the damping spring is strip-shaped, and its length direction is perpendicular to its telescopic direction. It can be either linear or arc-shaped. The telescopic bladder includes one telescopic part or multiple telescopic parts arranged in parallel and internally connected. Each telescopic part includes several bladder monomers stacked and internally connected. The outer shape of the bladder monomer is composed of a curved surface.

[0044] In the initial state, the filled damping energy dissipation material 104 keeps the telescopic bladder under a certain uniform pressure. When a certain position of the telescopic bladder is subjected to force, the telescopic bladder compresses and deforms, forcing the damping energy dissipation material 104 to flow to other positions except the stressed position. In this process, the buffering function is achieved through the damping energy dissipation material 104.

[0045] When this damping spring is applied to the shock absorption device of the present invention, multiple such damping springs can be arranged to form a circular ring distribution on the side wall, so as to achieve the damping shock absorption function in the circumferential direction. For example, four damping springs connected end to end can be arranged, and each damping spring is located within the range corresponding to a 90° central angle of the circular ring. At this time, since each damping spring is arc-shaped, in its telescopic bladder, the cross-sectional area of each bladder monomer along its length direction gradually decreases from the outside of the ring to the inside of the ring, that is, the longitudinal section of the telescopic bladder approximately presents a fan shape.

[0046] The shock absorption device solution of the present invention is installed and used through a suspension method, and multiple shock absorption functions are achieved through the swinging of the mass block 7, the movement of the movable disk 2, and the damping spring 4.

[0047] The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly. It is not intended to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. A shock absorption device, characterized in that: The shock absorption device includes an upper housing, a movable disk, a suspension spring, a plurality of damping springs, a plurality of buffer springs, a suspension spring and a mass block; The upper housing includes an upper bottom plate and a lower bottom plate. A hollow inner cavity surrounded by side walls is formed between the upper bottom plate and the lower bottom plate. A communication hole communicating the inner cavity with the outside of the upper housing is provided on the lower bottom plate; The movable disk includes a main body located in the inner cavity, an additional body connected to the main body and at least partially located in the communication hole, and a plurality of balls movably mounted on the main body and rollingly contacting the upper surface of the lower bottom plate; The suspension spring is longitudinally arranged in the inner cavity. One end of the suspension spring is connected to the upper bottom plate, and the other end of the suspension spring is a free end; The damping spring is radially arranged in the inner cavity along the upper housing. One end of the damping spring is fixedly connected to the side wall, and the other end of the damping spring is a free end and corresponds to the side surface of the main body of the movable disk; The buffer spring is radially arranged in the communication hole along the upper housing. One end of the buffer spring is fixedly connected to the hole wall of the communication hole, and the other end of the buffer spring is a free end and corresponds to the side surface of the additional body, or one end of the buffer spring is connected to the additional body, and the other end of the buffer spring is a free end and corresponds to the hole wall of the communication hole; The mass block is suspended below the additional body through the suspension spring.

2. The shock absorption device according to claim 1, characterized in that: The other end of the suspension spring is connected to the movable disk.

3. The shock absorption device according to claim 1, characterized in that: The buffer spring is a disc spring.

4. The shock absorption device according to claim 1, characterized in that: An installation groove is provided on the lower surface of the movable disk. The upper part of the ball is installed in the installation groove, and the lower part of the ball protrudes from the movable disk.

5. The shock absorption device according to claim 1, characterized in that: The damping springs are evenly distributed in the inner cavity, and the buffer springs are evenly distributed in the communication hole.

6. The shock absorption device according to claim 1, characterized in that: The cross section of the upper housing and the cross section of the movable disk are both circular.

7. The shock absorption device according to any one of claims 1 to 6, characterized in that: The shock absorption device further includes a lower housing. The lower housing is installed below the upper housing, and the mass block is located in the lower housing.

8. The shock absorption device according to claim 7, characterized in that: The outer side surface of the lower housing is flush with the outer side surface of the upper housing.

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