Anti-seismic damper with protective structure

Abstract

The utility model discloses an anti-seismic damper with a protective structure, which comprises a damper cylinder body and a damper piston rod, fixed sleeves are fixed on the outer surfaces of the ends, far away from each other, of the damper cylinder body and the damper piston rod, an inner screw tube is symmetrically sleeved in each fixed sleeve in a threaded manner, and an outer screw tube is sleeved in each inner screw tube in a threaded manner. Protective rubber sleeves are fixed between the upper and lower corresponding inner screw tubes, a limiting clamping groove is formed in one end of each inner screw tube, and a positioning clamping plate matched with the limiting clamping groove is fixed to the other end of each inner screw tube; the piston rod and the outer surface of the cylinder body can be protected through the dustproof telescopic sleeve on the outer side, it is avoided that dust, sundries and the like adhere to the outer surface of the piston rod, and consequently the cylinder body is jammed when moving, and the elastic connecting plate on the outer side can prevent the cylinder body from being blocked when the damper is collided by external force. And the impact force of collision is counteracted through the deformation quantity of the two elastic base plates, so that the cylinder body and the piston rod are protected, and the service life of the anti-seismic damper is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-seismic dampers, in particular to an anti-seismic damper with a protective structure. Background Art

[0002] A damper is a device that provides resistance to movement and dissipates movement energy. In seismic instruments, dampers are used to absorb the inherent vibration energy of the vibration system. Its damping force is generally proportional to the speed of the vibration system. When impacted, the vibration generated is quickly attenuated by increasing the damping. It is widely used in aerospace, aviation, military, guns, automobiles and other industries.

[0003] The basic structure of a damper is usually composed of a cylinder body, a piston rod, a seal, an inlet and outlet, etc. Some dampers are provided with a shock-absorbing spring on the inside or outside. Since most of the structures of the damper are exposed to the outside, especially the piston rod and the shock-absorbing spring, when they are bumped or the external dust has a high viscosity, the piston rod and the spring may be deformed, or the outer surface of the piston rod may be covered with a lot of dust, which may affect the normal use of the damper. Therefore, we propose an anti-seismic damper with a protective structure. Utility Model Content

[0004] The utility model aims to solve the problem that the anti-seismic damper with a protective structure in the prior art is easily deformed and cannot move after being bumped, and is stuck in movement due to dust.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: an anti-seismic damper with a protective structure, which includes a damper cylinder and a damper piston rod, the damper cylinder and the damper piston rod are fixed with fixed sleeves on the outer surfaces of the distal ends, each of the fixed sleeves is symmetrically threaded with an inner screw tube, and a protective rubber sleeve is fixed between the upper and lower corresponding inner screw tubes, each of the inner screw tubes is provided with a limiting slot at one end, and a positioning card plate cooperating with the limiting slot is fixed at the other end, and the positioning card plate is engaged in the limiting slot, and a protective structure is arranged on the outside of the fixed sleeve.

[0006] As a preferred solution of the anti-seismic damper with a protective structure described in the utility model, wherein: the middle part of each of the protective rubber sleeves is arranged in a corrugated folded shape, the inner ring diameter of the protective rubber sleeve is larger than the outer ring diameter of the damper cylinder and the damper piston rod, and magnetic strips and iron strips are respectively embedded in the opposite side edges of the two protective rubber sleeves, and the magnetic strips correspond one-to-one to the positioning card plates, and the iron bars are aligned one-to-one with the limit card slots.

[0007] As a preferred solution of the anti-seismic damper with a protective structure described in the utility model, the outer surface of each inner spiral tube is configured as a thread that cooperates with the inner side of the fixed sleeve, and each inner spiral tube is configured as a semi-ring that cooperates with the protective rubber sleeve.

[0008] As a preferred scheme of the seismic damper with a protective structure described in the utility model, wherein: the protective structure includes an elastic pad plate 1 and an elastic pad plate 2, the outer surfaces of the upper and lower fixed sleeves are fixed with fixed sleeves, and a plurality of elastic pad plates 2 are equidistantly arranged on the outside of the fixed sleeve, and the elastic pad plate 1 is slidably fitted on the outside of the elastic pad plate 2, and a limiting slider is fixed on the inner side of the end of the elastic pad plate 1 close to the elastic pad plate 2, and the limiting slider is slidably inserted in the adjustment groove provided in the elastic pad plate 2, and each of the elastic pad plates 1 and the elastic pad plate 2 is fixed with an inner slider slidably sleeved in the fixed sleeve at the far end, a connecting screw is fixed on the outer side of the inner slider, and the end of the connecting screw extending to the outside of the fixed sleeve is fixed on the side wall of the elastic pad plate 1 or the elastic pad plate 2, and a fixing nut is threadedly sleeved on the connecting screw on the outside of the fixed sleeve.

[0009] As a preferred solution of the seismic damper with a protective structure described in the utility model, the sliding sleeve on the connecting screw between the fixing nut and the fixed sleeve is provided with a support plate, and the inner side of the support plate is set to an arc shape that matches the outer surface of the fixed sleeve, and the height of the support plate is greater than the height of the slide groove.

[0010] As a preferred solution of the anti-seismic damper with a protective structure described in the utility model, the limit slider is configured as a horizontally placed "T" shape that cooperates with the adjustment groove, and the arc lengths of the elastic pad 1, the elastic pad 2 and the limit slider are all less than one eighth of the arc length of the fixed sleeve.

[0011] As a preferred solution of the anti-seismic damper with a protective structure described in the utility model, wherein: an annular groove cooperating with the inner sliding block is opened inside the fixed sliding sleeve, and the vertical section of the groove is "convex", and the inner sliding block is set to an arc shape cooperating with the groove.

[0012] The beneficial effects of the utility model are as follows: the utility model can protect the piston rod and the outer surface of the cylinder body through the dust-proof telescopic sleeve on the outside, to prevent dust and debris from adhering to the outer surface of the piston rod and causing jamming when the cylinder body moves, and the elastic connecting plate on the outside can offset the impact force of the collision through the deformation of the two elastic pads when the damper is hit by external force, thereby protecting the cylinder body and the piston rod and increasing the service life of the anti-seismic damper. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0014] Figure 1 The figure is an overall structural diagram of a seismic damper with a protective structure.

[0015] Figure 2 The utility model is a schematic front view of a split structure of a seismic damper with a protective structure.

[0016] Figure 3 It is a partial structural schematic diagram of a seismic damper with a protective structure.

[0017] Figure 4 It is a schematic diagram of the partial structure of a seismic damper with a protective structure from the back. DETAILED DESCRIPTION

[0018] The utility model is specifically introduced below in conjunction with the accompanying drawings and embodiments.

[0019] Reference Figures 1 to 4 The present embodiment is a seismic damper with a protective structure, including a damper cylinder 1 and a damper piston rod 2. The damper cylinder 1 and the damper piston rod 2 are fixed with a fixed sleeve 3 on their distal outer surfaces. Each fixed sleeve 3 is symmetrically threaded with an inner screw 4. A protective rubber sleeve 5 is fixed between the upper and lower corresponding inner screws 4. A limiting slot 6 is provided at one end of each inner screw 4, and a positioning card plate 7 matched with the limiting slot 6 is fixed at the other end, and the positioning card plate 7 is engaged in the limiting slot 6. A protective structure is arranged on the outside of the fixed sleeve 3.

[0020] In the present embodiment, the middle part of each protective rubber sleeve 5 is configured to be in a corrugated folded shape, the inner ring diameter of the protective rubber sleeve 5 is larger than the outer ring diameter of the damper cylinder 1 and the damper piston rod 2, and the two protective rubber sleeves 5 are respectively embedded with magnetic strips and iron strips inside the opposite side edges, and the magnetic strips correspond one-to-one with the positioning card plates 7, and the iron strips are aligned one-to-one with the limiting card grooves 6. When the two protective rubber sleeves 5 are fitted together, the magnetic strips and iron strips on their edges are aligned and attracted, so that the edges of the protective rubber sleeves 5 can be sealed. After sealing, the sealing protection effect inside the protective rubber sleeves 5 can be guaranteed.

[0021] In this embodiment, the outer surface of each inner screw tube 4 is configured as a thread that cooperates with the inner side of the fixed sleeve 3, and each inner screw tube 4 is configured as a semi-ring that cooperates with the protective rubber sleeve 5, so that the inner screw tube 4 can be conveniently screwed into the interior of the fixed sleeve 3, so that the upper and lower ends of the protective rubber sleeve 5 are aligned with the interior of the fixed sleeve 3, the protective rubber sleeve 5 can be installed and fixed, and it is also convenient to replace the protective rubber sleeve 5.

[0022] In this embodiment, the protective structure includes an elastic pad 19 and an elastic pad 2 10, and the outer surfaces of the upper and lower fixed sleeves 3 are fixed with fixed sleeves 13, and a plurality of elastic pads 2 10 are equidistantly arranged on the outside of the fixed sleeve 13, and the elastic pad 19 is slidably fitted on the outside of the elastic pad 2 10, and a limiting slider 12 is fixed on the inner side of one end of the elastic pad 19 close to the elastic pad 2 10, and the limiting slider 12 is slidably inserted in the adjustment groove 11 provided in the elastic pad 2 10, and each elastic pad 19 and the elastic pad 2 10 are fixed with an inner slider 14 slidably sleeved in the fixed sleeve 13 at the far end, and a connecting screw 15 is fixed on the outer side of the inner slider 14, and the end of the connecting screw 15 extending to the outside of the fixed sleeve 13 is fixed on the side wall of the elastic pad 19 or the elastic pad 2 10, and a fixing nut 8 is threadedly sleeved on the connecting screw 15 on the outside of the fixed sleeve 13.

[0023] In this embodiment, a supporting plate 16 is provided on the sliding sleeve of the connecting screw 15 between the fixing nut 8 and the fixing sleeve 13, and the inner side of the supporting plate 16 is set to an arc shape that matches the outer surface of the fixing sleeve 13. The height of the supporting plate 16 is greater than the height of the sliding groove. By abutting the supporting plate 16 against the outer side of the fixing sleeve 13 and clamping the fixing sleeve 13 with the fixing nut 8, the elastic pad 10 can be fixed, and the position of the elastic pad 10 can be adjusted conveniently to avoid affecting the replacement of the protective rubber sleeve 5.

[0024] In this embodiment, the limit slider 12 is configured to be a horizontally placed "T" shape that cooperates with the adjustment groove 11, and the arc lengths of the elastic pad 19, the elastic pad 2 10 and the limit slider 12 are all less than one eighth of the arc length of the fixed sleeve 13, thereby avoiding the separation of the elastic pad 19 and the elastic pad 2 10, and ensuring that after all the elastic pads 1 9 and the elastic pads 2 10 are gathered together, they will not affect the normal installation of the protective rubber sleeve 5.

[0025] In this embodiment, an annular sliding groove cooperating with the inner sliding block 14 is opened inside the fixed sliding sleeve 13, and the vertical cross-section of the sliding groove is "convex". The inner sliding block 14 is set to be an arc shape cooperating with the sliding groove, which facilitates the sliding adjustment of the inner sliding block 14 inside the fixed sliding sleeve 13 and avoids the inner sliding block 14 from separating from the fixed sliding sleeve 13.

[0026] Working principle: When the damper needs to be used, screw the fixing nut 8 to release the clamping fixation of the fixing nut 8 on the fixed sleeve 13, then pull the elastic pad 1 9 and the elastic pad 2 10, so that the elastic pad 1 9 and the elastic pad 2 10 are rotated to one side, and the protective rubber sleeve 5 on one side is compressed and sleeved on the outside of the damper cylinder 1 and the damper piston rod 2, and then the protective rubber sleeve 5 is rotated to the inside of the elastic pad 1 9, and then the other protective rubber sleeve 5 is compressed and sleeved on the outside of the damper cylinder 1 and the damper piston rod 2, and the positioning card plate 7 is correspondingly inserted into the inside of the limit card slot 6, and the iron bar and magnetic strip on the edge of the protective rubber sleeve 5 can be assembled and fixed to the protective rubber sleeve 5 and then the inner screw tubes 4 at the upper and lower ends are respectively screwed to the fixed sleeve 3 The internal fixing and unfolding of the protective rubber sleeve 5 can protect the damper cylinder 1 and the damper piston rod 2. After the protective rubber sleeve 5 is installed, the fixing nut 8 is screwed again to evenly move the elastic pad 1 9 and the elastic pad 2 10 to the outside of the damper, and the fixing nut 8 is screwed so that the fixing nut 8 is screwed to clamp and fix the fixed sleeve 13. When the damper cylinder 1 and the damper piston rod 2 are bumped, the elastic pad 1 9 and the elastic pad 2 10 are squeezed to deform, and part of the impact force can be offset by the restoring force of the elastic pad 1 9 and the elastic pad 2 10. When the damper cylinder 1 slides on the damper piston rod 2, the protective rubber sleeve 5 is stretched and unfolded, and at the same time, the limit slider 12 is driven to slide inside the adjustment groove 11.

[0027] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A seismic damper with a protective structure, characterized in that: The invention comprises a damper cylinder (1) and a damper piston rod (2), wherein the outer surfaces of the damper cylinder (1) and the damper piston rod (2) are fixed with fixed sleeves (3) at their far ends, each of the fixed sleeves (3) is symmetrically threaded with an inner screw tube (4), and a protective rubber sleeve (5) is fixed between the upper and lower corresponding inner screw tubes (4), each of the inner screw tubes (4) is provided with a limit slot (6) at one end, and a positioning card (7) matched with the limit slot (6) is fixed at the other end, and the positioning card (7) is engaged with the limit slot (6), and a protective structure is arranged on the outer side of the fixed sleeve (3).

2. The seismic damper with a protective structure according to claim 1, characterized in that: The middle part of each protective rubber sleeve (5) is configured to be in a corrugated folded shape, the inner diameter of the protective rubber sleeve (5) is larger than the outer diameter of the damper cylinder (1) and the damper piston rod (2), and magnetic strips and iron strips are respectively embedded in the inner sides of the two opposite side edges of the protective rubber sleeves (5), and the magnetic strips correspond to the positioning card plates (7) one by one, and the iron strips are aligned with the limit card slots (6) one by one.

3. The anti-seismic damper with a protective structure according to claim 1, characterized in that: The outer surface of each inner spiral tube (4) is configured as a thread that matches the inner side of the fixed sleeve (3), and each inner spiral tube (4) is configured as a semi-ring that matches the protective rubber sleeve (5).

4. The anti-seismic damper with a protective structure according to claim 1, characterized in that: The protective structure comprises an elastic pad plate 1 (9) and an elastic pad plate 2 (10), the outer surfaces of the upper and lower fixed sleeves (3) are both fixed with a fixed sleeve (13), and a plurality of elastic pad plates 2 (10) are equidistantly arranged outside the fixed sleeve (13), and the elastic pad plate 1 (9) is slidably fitted on the outer side of the elastic pad plate 2 (10), and a limiting slider (12) is fixed on the inner side of one end of the elastic pad plate 1 (9) close to the elastic pad plate 2 (10), and the limiting slider (12) is slidably inserted into the opening of the elastic pad plate 2 (10). Inside the adjustment groove (11), each of the elastic pad plate 1 (9) and the elastic pad plate 2 (10) is fixed with an inner sliding block (14) at the far end thereof and is slidably sleeved inside the fixed sleeve (13), a connecting screw (15) is fixed to the outside of the inner sliding block (14), and one end of the connecting screw (15) extending to the outside of the fixed sleeve (13) is fixed to the side wall of the elastic pad plate 1 (9) or the elastic pad plate 2 (10), and a fixing nut (8) is threadedly sleeved on the connecting screw (15) outside the fixed sleeve (13).

5. The seismic damper with a protective structure as claimed in claim 4, characterized in that: The upper sliding sleeve of the connecting screw rod (15) between the fixing nut (8) and the fixing sliding sleeve (13) is provided with a supporting plate (16), and the inner side of the supporting plate (16) is arranged in an arc shape matching the outer surface of the fixing sliding sleeve (13), and the height of the supporting plate (16) is greater than the height of the sliding groove.

6. The anti-seismic damper with a protective structure as claimed in claim 4, characterized in that: The limit slider (12) is arranged in a transverse "T" shape to cooperate with the adjustment slot (11), and the arc lengths of the elastic pad 1 (9), the elastic pad 2 (10) and the limit slider (12) are all less than one eighth of the arc length of the fixed sleeve (13).

7. The seismic damper with a protective structure according to claim 4, characterized in that: An annular sliding groove cooperating with the inner sliding block (14) is provided inside the fixed sliding sleeve (13), and the vertical cross-section of the sliding groove is convex, and the inner sliding block (14) is arranged in an arc shape cooperating with the sliding groove.

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