Novel vibration isolator outer sleeve

Abstract

The novel vibration isolator outer sleeve comprises a sleeve body, a skirt edge, a cover plate, two anchoring plates, a bearing baffle ring and a jacking baffle ring, the skirt edge is integrally formed at the lower end of the sleeve body, the skirt edge is formed by an outer expansion edge or an outer flanging edge at the lower end of the sleeve body, the cover plate is detachably buckled at the upper end of the sleeve body, and the jacking baffle ring is arranged on the upper end of the sleeve body. The two anchoring plates are fixedly connected to the middle of the outer wall of the barrel and symmetrically distributed along the middle axis of the barrel, and a plurality of grooves are formed in the tops of the anchoring plates. According to the novel vibration isolator outer sleeve, the skirt edge of the novel vibration isolator outer sleeve is expanded outwards or flanged outwards through processes such as stamping and the like, the skirt edge and the sleeve body are integrally formed, two components do not need to be connected through welding, the connecting strength is enhanced, the machining process is simplified, and the production efficiency is improved; the grooves formed in the upper portion of the outer sleeve can be matched with steel bars in the ballast bed in shape, and the steel bars can be fixed conveniently and form a whole with the outer sleeve.

Description

Technical Field

[0001] The utility model relates to the technical field of vibration isolators, in particular to a novel outer sleeve of a vibration isolator. Background Technique

[0002] In recent years, urban rail transit has developed rapidly. While effectively alleviating the urban traffic congestion problem brought about by the explosive growth of urban population, the vibration and noise generated by train operation have had a greater impact on the daily life of surrounding residents and the riding experience of passengers. Among many vibration and noise reduction measures, the steel spring floating slab track bed technology has become the first choice for vibration and noise reduction of newly built rail transit near or under sensitive areas such as residential buildings, schools, and hospitals due to its excellent vibration reduction performance, stable structure, and less maintenance work.

[0003] The steel spring vibration isolator in the steel spring floating slab track bed consists of inner and outer sleeves. The outer sleeve includes a cylinder body, a bottom skirt, a middle anchoring plate, etc., and is cast into a whole with the track bed. The inner sleeve is installed inside it and includes springs and other components. The upper load is transmitted to the outer sleeve, the inner sleeve, and the tunnel foundation through the track bed in sequence. The connection between the outer sleeve and the track bed mainly depends on the friction force of the cylinder body and the anchoring force of the bottom skirt. Therefore, the connection strength between the skirt and the cylinder body is crucial.

[0004] In the outer sleeve of the vibration isolator, setting a skirt at the bottom of the cylinder body has two functions. One is to increase the contact area between the outer sleeve and the concrete track bed, increase the anchoring force, and ensure no dislocation or detachment during the load transfer process. The other is that the skirt has a certain area, making it more stable and not easy to topple during storage and handling. The skirt and the cylinder body are formed into a whole by welding, and the quality of the welding process directly determines the bearing capacity of the skirt. If the skirt and the cylinder body are separated during operation, it will lead to a reduction in the anchoring force between the entire outer sleeve and the track bed, and under the repeated action of fatigue loads, the entire outer sleeve may also fail.

[0005] In the steel spring vibration isolator, the main load-bearing component inside the vibration isolator is the spring. Although the designed service life of the spring used for the subway foundation is more than 50 years, factors such as spring quality, working environment, upper load, and foundation state may cause the spring to fail. Once the spring loses support, it will increase the bearing capacity of adjacent vibration isolators. If it cannot be discovered and rectified in time, over time, it may cause the failure of other springs, thereby increasing the dynamic settlement of the floating slab and bringing potential safety hazards to train operation. In order to monitor the spring state in a timely and convenient manner, a broken spring indicating device is usually equipped in special sections such as small-radius curves and stiffness transition sections. However, due to the significant shortening of the construction period of most subways, the broken spring indicating device is usually installed under the conditions of multi-disciplinary cross-construction and poor construction environment on site, resulting in being contaminated by oil stains before installation, and at the same time, the magnet part will adsorb a lot of iron filings, bringing inconvenience to installation. Content of the Utility Model

[0006] 1. Technical issues to be solved

[0007] The utility model provides a novel outer sleeve of a vibration isolator, which solves the problems raised in the above background technology.

[0008] (II) Technical solution

[0009] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a new type of outer sleeve of a vibration isolator, comprising a cylinder, a skirt, a cover plate, two anchor plates, a load-bearing retaining ring and a lifting retaining ring, wherein the skirt is integrally formed at the lower end of the cylinder, and the skirt is composed of an outward expansion or an outward flange of the lower end of the cylinder, the cover plate is detachably snapped onto the upper end of the cylinder, the two anchor plates are fixedly connected to the middle of the outer wall of the cylinder and are symmetrically distributed along the central axis of the cylinder, a plurality of grooves are formed on the top of the anchor plate, and the grooves are adapted to the internal steel bars of the ballast bed, and the load-bearing retaining ring and the lifting retaining ring are formed on the inner wall of the cylinder from bottom to top along the height direction of the cylinder.

[0010] Preferably, the cover plate is configured as a boss structure, and the width or inner diameter of the downwardly protruding portion of the cover plate is greater than or equal to the width or inner diameter of the inner cavity of the cylinder, and at least a through hole is formed on the cover plate, or a through hole and a disassembly hole are formed at the same time, and the through hole and the disassembly hole both pass through the cover plate.

[0011] The utility model also provides a novel vibration isolator, which includes the above-mentioned outer sleeve, an inner sleeve arranged in the outer sleeve, a broken spring indicator device, a limiter formed at the lower end of the inner sleeve, and a locking gasket arranged on the top of the inner sleeve using a height adjustment gasket. The height adjustment gasket and the locking gasket are both connected and fixed to the inner sleeve by bolts, the lower end of the broken spring indicator device is connected and fixed to the locking gasket, and the upper end of the broken spring indicator device extends above the outer sleeve.

[0012] Preferably, a threaded hole is further formed on the locking gasket, and a threaded section with external threads is formed on the bottom section of the broken spring indicator device, so that the lower end of the broken spring indicator device is threadedly connected in the threaded hole.

[0013] Preferably, the lower end of the broken spring indicator device is fixed to the locking gasket by means of anaerobic adhesive.

[0014] Further preferably, the upper section of the broken spring indicator device is formed with a light column section with a flat outer wall, the top of the broken spring indicator device is formed with a head passing through the outer sleeve, the outer wall of the head is provided with scale areas distinguished by different colors, and a groove compatible with a screwdriver is also formed at the top center of the head.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the present utility model provides a new vibration isolator outer sleeve, which has the following

[0017] Advantages:

[0018] 1. In the present utility model, the skirt of the new vibration isolator outer sleeve is expanded or flanged outward by processes such as stamping, and is integrally formed with the cylinder body. There is no need to connect two components by welding, which enhances the connection strength, simplifies the processing technology, and improves the production efficiency.

[0019] 2. In the present utility model, the anchor plates of the new vibration isolator outer sleeve are symmetrically arranged on both sides of the middle of the cylinder body, and multiple grooves provided on the upper part thereof can match the shape of the internal steel bars of the ballast bed, which is beneficial to the fixation of the steel bars and forms an integral body with the outer sleeve.

[0020] 3. In the present utility model, the broken spring indicating device of the new vibration isolator can be conveniently installed, and the working state of the inner sleeve of the vibration isolator can be conveniently indicated through the scale areas of different colors on its head. Description of the Drawings

[0021] Figure 1 The front view of the new vibration isolator outer sleeve assembled into a vibration isolator according to the embodiment;

[0022] Figure 2 For Figure 1 The top view of the vibration isolator in

[0023] Figure 3 For Figure 1 The left view of the vibration isolator in

[0024] Figure 4 The cross-sectional view of the cover plate according to the embodiment;

[0025] Figure 5 For Figure 4 The top view of the cover plate in

[0026] Figure 6 The front view of the broken spring indicating device according to the embodiment;

[0027] Figure 7 For Figure 6 The top view of the broken spring indicating device in

[0028] Figure 8 The top view of the lock washer according to the embodiment;

[0029] Figure 9 The installation schematic diagram of the broken spring indicating device.

[0030] In the figure: 1. Outer sleeve; 11. Cylinder body; 12. Skirt; 13. Cover plate; 131. Through hole; 132. Protruding part; 133. Hole for disassembly; 14. Anchor plate; 15. Bearing retaining ring; 16. Jacking retaining ring; 2. Inner sleeve; 3. Broken spring indicating device; 31. Threaded section; 32. Light column section; 33. Head; 34. Groove; 4. Spacer shim; 5. Locking shim; 51. Threaded hole; 6. Limiter. Detailed implementation mode

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0032] Please refer to Figures 1 to 5 , a new type of vibration isolator outer sleeve, including a cylinder body 11, a skirt 12, a cover plate 13, two anchor plates 14, a bearing retaining ring 15 and a jacking retaining ring 16. The cylinder body 11 is a cylindrical or rectangular cylinder body, and can be made by rolling a sheet and butt-welding or using a seamless steel pipe. The skirt 12 can be integrally formed at the lower end of the cylinder body 11 by processes such as stamping, and the skirt 12 is composed of an outward expansion or outward turning edge at the lower end of the cylinder body 11, thereby avoiding welding processing. The cover plate 13 can be made of non-metallic materials, such as fiberglass, reinforced PP plastic, etc., so as to ensure sufficient strength. In addition, using a non-metallic cover plate 13 can reduce the anti-corrosion process, and at the same time can eliminate the hidden dangers of corrosion and conduction of the metal material when the anti-corrosion layer fails and is exposed for a long time.

[0033] In order to connect and fix the cover plate 13 to the cylinder body 11, the cover plate 13 can be set as a convex platform structure, and the width or inner diameter of the protruding part 132 protruding downward of the cover plate 13 is greater than or equal to the width or inner diameter of the inner cavity of the cylinder body 11, so that the cover plate 13 can be firmly buckled on the upper end of the cylinder body 11 during assembly. Or, at least two buckles (not shown in the figure) can be symmetrically formed at the outer edge of the cover plate 13, so that the cover plate 13 can be fixedly connected to the cylinder body 11 through the buckles.

[0034] At least a through hole 131 is formed on the cover plate 13, or a through hole 131 and a disassembly hole 133 are formed at the same time, so that when the cover plate 13 is disassembled, a tool can be inserted into the through hole 131 or the disassembly hole 133 to pry out the cover plate 13. In addition, the through hole 131 can also be used in conjunction with the installation of the broken spring indicator device 3. In addition, the disassembly hole 133 needs to be equipped with a hole cover to prevent debris from being brought into the cylinder 11. The two anchor plates 14 are fixedly connected to the middle of the outer wall of the cylinder 11 and are symmetrically distributed along the central axis of the cylinder 11. A plurality of grooves are formed on the top of the anchor plate 14, and the grooves are adapted to the shape of the steel bars inside the track bed, so as to facilitate the fixation of the steel bars and form a whole with the outer sleeve 1, and the anchor plate 14 is arranged in the middle for easy transportation. The load-bearing retaining ring 15 and the lifting retaining ring 16 are fixedly connected to the inner wall of the cylinder 11 from bottom to top along the height direction of the cylinder 11, and the thickness of the load-bearing retaining ring 15 and the lifting retaining ring 16 can be consistent with the height-adjusting gasket 4 and the locking gasket 5 respectively. After the steel plate cuts the retaining ring, the internal steel plate can continue to process the gasket, which can save materials to a great extent, reduce the scrap rate, and greatly save processing costs.

[0035] See also Figures 1 to 9 The present application also provides a new type of vibration isolator, which includes, in addition to the aforementioned outer sleeve 1, an inner sleeve 2 disposed in the outer sleeve 1, a broken spring indicator 3, a locking washer 5 padded on the top of the inner sleeve 2 using a height-adjusting washer 4, and a limiter 6 formed at the lower end of the inner sleeve 2. The height-adjusting washer 4 and the locking washer 5 are both connected and fixed to the inner sleeve 2 by bolts, and the lower end of the broken spring indicator 3 can be connected and fixed to the locking washer 5 by threaded connection or by anaerobic adhesive bonding. The upper end of the installed broken spring indicator 3 can pass through the through hole 131 and extend above the outer sleeve 1.

[0036] When the lower end of the broken spring indicator 3 is connected to the locking gasket 5 by threaded connection, a threaded hole 51 is also formed on the locking gasket 5, and the bottom section of the broken spring indicator 3 is formed with a threaded section 31 provided with an external thread, so that the lower end of the broken spring indicator 3 can be threadedly connected in the threaded hole 51, and the stepless height adjustment of the broken spring indicator can be achieved by screwing the threads together to meet different height requirements. For example, from top to bottom, there are two colors, red and green. When the cover plate 13 is covered, when the bottom of the broken spring indicator 3 is displayed as green, it means that the inner sleeve 2 is in a normal working state; when it is displayed as red, it means that the height of the inner sleeve 2 has dropped, and the cover plate 13 needs to be opened for inspection. A groove 34 adapted to a screwdriver is also formed at the top center of the head 33, so that the broken spring indicator 3 can be installed or removed using a screwdriver tool.

[0037] In this embodiment, the upper section of the broken spring indicating device 3 is formed with a light column section 32 having a flat outer wall, and the top end of the broken spring indicating device 3 is formed with a head 33 that penetrates through the outer sleeve 1. A scale area differentiated by different colors can be provided on the outer wall of the head 33, so as to be used for indicating the position state of the inner sleeve 2.

[0038] In all the solutions mentioned above, for those involving the connection between two components, welding, connection with bolts and nuts, connection with bolts or screws, or other well-known connection methods can be selected according to the actual situation, which will not be elaborated one by one here. For those involving fixed connection mentioned above, welding is preferably considered. Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A new type of outer sleeve of a vibration isolator, comprising a cylinder body (11), characterized in that, It further includes a skirt (12), a cover plate (13), two anchor plates (14), a bearing retaining ring (15), and a jacking retaining ring (16). The skirt (12) is integrally formed at the lower end of the cylinder (11), and the skirt (12) is composed of an outward expansion or outward turned edge at the lower end of the cylinder (11). The cover plate (13) is detachably snapped onto the upper end of the cylinder (11). The two anchor plates (14) are fixedly connected to the middle of the outer wall of the cylinder (11) and are symmetrically distributed along the axis of symmetry of the cylinder (11). A plurality of grooves are formed at the top of the anchor plate (14), and the grooves are adapted to the internal steel bars of the roadbed. The bearing retaining ring (15) and the jacking retaining ring (16) are formed on the inner wall of the cylinder (11) from bottom to top along the height direction of the cylinder (11).

2. A novel vibration isolation outer sleeve according to claim 1, characterized in that: The cover plate (13) is arranged as a boss structure, and the width or inner diameter of the protruding portion (132) that protrudes downward of the cover plate (13) is greater than or equal to the width or inner diameter of the inner cavity of the cylinder (11).

3. A novel vibration isolation outer sleeve according to claim 1, characterized in that: At least two snaps are symmetrically formed at the outer edge of the cover plate (13), and the cover plate (13) is fixedly connected to the cylinder (11) through the snaps.

4. A novel vibration isolation outer sleeve according to claim 2 or 3, characterized in that: At least through holes (131) are formed on the cover plate (13), or through holes (131) and disassembly holes (133) are formed simultaneously, and both the through holes (131) and the disassembly holes (133) penetrate through the cover plate (13).

5. A novel vibration isolator, comprising an outer sleeve (1) as described in any one of claims 1-4, an inner sleeve (2) disposed within the outer sleeve (1), a stopper (6) formed at the lower end of the inner sleeve (2), and a locking gasket (5) pad-mounted on the top of the inner sleeve (2) by means of a shim (4), wherein both the shim (4) and the locking gasket (5) are fixedly connected to the inner sleeve (2) by bolts, and is characterized in that, It further includes a broken spring indicating device (3). The lower end of the broken spring indicating device (3) is fixedly connected to the lock washer (5), and the upper end of the broken spring indicating device (3) extends above the outer sleeve (1).

6. A novel vibration isolator according to claim 5, characterized in that: A threaded hole (51) is further formed on the lock washer (5). A threaded section (31) with an external thread is formed at the bottom section of the broken spring indicating device (3), so that the lower end of the broken spring indicating device (3) is threadedly connected into the threaded hole (51).

7. A novel vibration isolator according to claim 5, characterized in that: The lower end of the broken spring indicating device (3) is fixedly bonded to the lock washer (5) through anaerobic glue.

8. A novel vibration isolator according to claim 6 or 7, characterized in that: A light column section (32) with a flat outer wall is formed at the upper section of the broken spring indicating device (3). A head (33) that penetrates through the outer sleeve (1) is formed at the top of the broken spring indicating device (3), and a scale area distinguished by different colors is arranged on the outer wall of the head (33).

9. A novel vibration isolator according to claim 8, characterized in that: A groove (34) adapted to a screwdriver is further formed at the center of the top of the head (33).

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