Uncovering-free spring-breaking indicator for spring floating slab vibration isolator

Abstract

The utility model relates to a spring breaking indicator for a cover-opening-free spring floating slab vibration isolator, which comprises an indicating rod, one end of the indicating rod is detachably fixed at the top of the vibration isolator, an outer sleeve is sleeved on the vibration isolator, and one end, far away from the vibration isolator, of the indicating rod is arranged in a through hole at the top of the outer sleeve in a penetrating manner. The structure is simple, the cost is low, and the labor cost is greatly reduced without opening the cover plate of the outer sleeve. The working state of the vibration isolator can be monitored more visually by observing the relative displacement of the indicating rod and the top end of the outer sleeve.

Description

Technical Field

[0001] The utility model relates to the technical field of track vibration reduction, in particular to a broken spring indicator for a spring floating slab isolator without opening the cover Background Technique

[0002] With the rapid development of urban subway construction in China, the continuous increase of subway lines in major cities, and the renovation of existing subway lines, the steel spring floating slab vibration isolation technology has been paid attention to and applied by designers and users. During the operation of the subway, the high-frequency operation of the isolators in the floating slab track bed causes spring fracture, and the uneven settlement of the civil engineering structure in this section causes the failure of the isolators, which brings great challenges to the later maintenance work

[0003] The broken spring indicator is convenient for maintenance personnel to directly understand the working state of the isolator without disassembling the outer sleeve cover, greatly reducing the workload of maintenance personnel, so as to ensure the efficient and stable operation of the spring floating slab track bed. In most existing operating lines, broken spring indicators have not been installed on the isolators. The installation of traditional broken spring indicators requires the disassembly of the upper cover plate of the outer sleeve, with low installation efficiency and high labor cost for installing traditional broken spring indicators on operating lines with short construction skylight periods Summary of the Utility Model

[0004] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a broken spring indicator for a spring floating slab isolator without opening the cover, which is a floating slab broken spring indicator with a simple structure, low cost, can be quickly installed without disassembling the outer sleeve cover, and can visually detect the working state of the isolator

[0005] The above utility model purpose of the utility model is achieved through the following technical solutions

[0006] A broken spring indicator for a spring floating slab isolator without opening the cover, including an indicating rod, one end of the indicating rod is detachably fixed on the top of the isolator, an outer sleeve is sleeved on the isolator, the end of the indicating rod away from the isolator passes through a through hole at the top of the outer sleeve, and a strong magnetic base is connected to the bottom end of the indicating rod

[0007] As a further technical solution of the utility model: the top end of the indicating rod is flush with the upper surface of the through hole

[0008] As a further technical solution of the utility model: a cover plate is detachably fixed at the upper end of the outer sleeve, and the through hole is opened in the middle of the cover plate

[0009] As a further technical solution of the utility model: the lower end of the strong magnetic base is connected to the isolator

[0010] As a further technical solution of the present utility model: the indicating rod includes a screw rod and an adjusting nut threadedly connected to the upper end of the screw rod. The adjusting nut is inserted through the through hole, and the height of the broken spring indicator is adjusted by controlling the screwing depth of the adjusting nut.

[0011] As a further technical solution of the present utility model: the upper surface of the adjusting nut is flush with the upper surface of the cover plate.

[0012] As a further technical solution of the present utility model: the strong magnetic base and the screw rod are fixedly connected into a whole by means of gluing or threaded connection.

[0013] As a further technical solution of the present utility model: the aperture of the through hole is larger than the outer contours of the strong magnetic base and the adjusting nut.

[0014] As a further technical solution of the present utility model: it further includes a locking plate, the locking plate is installed inside the outer sleeve, and the lower end of the strong magnetic base is connected to the locking plate.

[0015] As a further technical solution of the present utility model: it further includes an adjusting gasket, the adjusting gasket is arranged between the locking plate and the vibration isolator, and the lower end of the strong magnetic base passes through the locking plate and is connected to the adjusting gasket.

[0016] In summary, the present utility model includes at least one of the following beneficial technical effects:

[0017] The present utility model discloses a broken spring indicator for a spring floating plate vibration isolator without opening the cover, which has a simple structure, low cost, and greatly reduces the labor cost by not opening the cover plate of the outer sleeve. By observing the relative displacement of the adjusting nut and the cover plate of the outer sleeve, the working state of the vibration isolator can be monitored more intuitively. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the first embodiment.

[0019] Figure 2 It is a schematic diagram of the overall structure of the second embodiment.

[0020] Figure 3 It is a schematic diagram of the overall structure of the third embodiment.

[0021] Figure 4 It is a top view of the present utility model.

[0022] Reference numerals: 1, indicating rod; 11, screw rod; 12, adjusting nut; 2, vibration isolator; 3, outer sleeve; 31, cover plate; 4, through hole; 5, strong magnetic base; 6, locking plate; 7, adjusting gasket. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application; it is obvious that the described embodiments are only a part of the embodiments of the present application, rather than all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0024] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0025] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "provided with", "sheathed / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0026] Embodiment 1:

[0027] Referring to Figure 1 , a spring floating plate vibration isolator break spring indicator without opening the cover disclosed in the present utility model includes an indicating rod 1. One end of the indicating rod 1 is detachably fixed to the top of the vibration isolator 2. An outer sleeve 3 is sleeved on the vibration isolator 2. The end of the indicating rod 1 far from the vibration isolator 2 passes through a through hole 4 at the top of the outer sleeve 3.

[0028] Referring to Figure 4 , the top end of the indicating rod 1 is flush with the upper surface of the through hole 4. A cover plate 31 is detachably fixed to the upper end of the outer sleeve 3. The through hole 4 is opened in the middle of the cover plate 31. A strong magnetic base 5 is connected to the bottom end of the indicating rod 1, and the lower end of the strong magnetic base 5 is connected to the vibration isolator 2.

[0029] In this embodiment, the indicating rod 1 includes a screw rod 11 and an adjusting nut 12 threadedly connected to the upper end of the screw rod 11. The adjusting nut 12 is inserted through the through hole 4, and the height of the broken spring indicator is adjusted by controlling the screwing depth of the adjusting nut 12. Among them, the upper surface of the adjusting nut 12 is flush with the upper surface of the cover plate 31. The strong magnetic base 5 and the screw rod 11 are fixedly connected into a whole by gluing or threaded connection. The aperture of the through hole 4 is larger than the outer contours of the strong magnetic base 5 and the adjusting nut 12.

[0030] Among them, the outer sleeve 3 plays a protective role to protect the vibration isolator 2 from being damaged and improve the vibration damping effect of the vibration isolator 2. The cover plate 31 plays a role in preventing external impurities from entering the floating plate and protecting the vibration isolator 2. At the same time, the cooperation between the cover plate 31 and the adjusting nut 12 can realize relative vertical displacement, so that the broken spring indicator of the floating plate vibration isolator 2 can more intuitively and accurately monitor the working state of the vibration isolator 2. The screw rod 11 plays a connecting role on the one hand, connecting the cover plate 31 and the vibration isolator 2, and on the other hand, cooperating with the adjusting nut 12 and the cover plate 31 to realize the function of monitoring the working state of the vibration isolator 2.

[0031] Among them, the role of the strong magnetic base 5 is to make the screw rod 11 more stably fixed on the vibration isolator 2. At the same time, the outer contour of the strong magnetic base 5 is slightly smaller than the diameter of the broken spring indicator installation through hole 4 drilled on the cover plate 31. The broken spring indicator can be installed without disassembling the cover plate 31, greatly reducing the installation strength and thus reducing the labor cost.

[0032] Among them, the adjusting nut 12 is used to adjust the height of the broken spring indicator so that the upper surface of the adjusting nut 12 is flush with the upper surface of the cover plate 31. Such a connection method does not affect the vibration damping effect of the floating plate vibration isolator 2 on the one hand, and can more intuitively observe the vertical displacement between the cover plate 31 and the adjusting nut 12 on the other hand, improving the accuracy of monitoring the working state of the vibration isolator 2.

[0033] Embodiment Two:

[0034] Refer to Figure 2 , a spring floating plate vibration isolator broken spring indicator without opening the cover disclosed by the present utility model. The difference from Embodiment One is that it further includes a locking plate 6. The locking plate 6 is installed inside the outer sleeve 3, and the lower end of the strong magnetic base 5 is connected to the locking plate 6. Specifically, the lower end of the strong magnetic base 5 is adsorbed on the upper surface of the locking plate 6.

[0035] Embodiment Three:

[0036] Refer to Figure 3, which is a spring floating slab vibration isolator broken spring indicator disclosed by the present utility model. The difference from Embodiment 1 is that it further includes an adjusting gasket 7. The adjusting gasket 7 is arranged between the locking plate 6 and the vibration isolator 2. The lower end of the strong magnetic base 5 passes through the locking plate 6 and is connected to the adjusting gasket 7. Specifically, the lower end of the strong magnetic base 5 adsorbs on the upper surface of the adjusting gasket 7.

[0037] The implementation principle of the present utility model is as follows: The present utility model discloses a spring floating slab vibration isolator broken spring indicator without opening the cover. The broken spring indicator is composed of an adjusting nut 12, a screw rod 11, a strong magnetic base 5, an outer sleeve 3 and a cover plate 31. A broken spring indicator installation through hole 4 is drilled in the middle of the cover plate 31 of the broken spring indicator. The diameter of the through hole 4 is slightly larger than the diameters of the strong magnetic base 5 and the adjusting nut 12. Then, the lower end of the screw rod 11 is fixedly connected to the strong magnetic base 5, and the upper end of the screw rod 11 is screwed into the adjusting nut 12. Use a slender rod to measure the distance between the upper surface of the cover plate 31 and the upper surface of the vibration isolator 2, and adjust the adjusting nut 12 so that the total length of the broken spring indicator is equal to the distance between the upper surface of the cover plate 31 and the upper surface of the vibration isolator 2. Put the broken spring indicator through the through hole 4 in the middle of the cover plate 31 until the strong magnetic base 5 firmly adsorbs on the upper surface of the vibration isolator 2, and check and finely adjust the adjusting nut 12 until its upper surface is flush with the surface of the cover plate 31. If the spring in the vibration isolator 2 breaks or its base settles, it will produce a relative displacement with the outer sleeve 3, and correspondingly, the adjusting nut 12 of the broken spring indicator and the cover plate 31 will also produce the same displacement. During daily monitoring, if a vertical displacement is found between the top of the broken spring indicator and the surface of the cover plate 31, it can be determined that the vibration isolator 2 at that place is in a failure state.

[0038] The embodiments of this specific implementation manner are all preferred embodiments of the present utility model, and do not limit the protection scope of the present utility model accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present utility model should be covered within the protection scope of the present utility model.

Claims

1. A spring floating plate vibration isolator without opening the cover break spring indicator, characterized in that It includes an indicating rod (1), one end of the indicating rod (1) is detachably fixed to the top of a vibration isolator (2), an outer sleeve (3) is sleeved on the vibration isolator (2), the end of the indicating rod (1) far from the vibration isolator (2) passes through a through hole (4) at the top of the outer sleeve (3), and a strong magnetic base (5) is connected to the bottom end of the indicating rod (1). The aperture of the through hole (4) is larger than the outer contours of the strong magnetic base (5) and the adjusting nut (12).

2. The break spring indicator of the spring floating plate vibration isolator without opening the cover according to claim 1, wherein, The top end of the indicating rod (1) is flush with the upper surface of the through hole (4).

3. The broken spring indicator of a spring floating plate vibration isolator without opening the cover according to claim 1, characterized in that, A cover plate (31) is detachably fixed to the upper end of the outer sleeve (3), and the through hole (4) is opened in the middle of the cover plate (31).

4. The break spring indicator of the spring floating plate vibration isolator without opening the cover according to claim 1, characterized in that, The lower end of the strong magnetic base (5) is connected to the vibration isolator (2).

5. The broken spring indicator of the spring floating plate vibration isolator without opening the cover according to claim 3, characterized in that, The indicating rod (1) includes a screw rod (11) and an adjusting nut (12) threadedly connected to the upper end of the screw rod (11). The adjusting nut (12) passes through the through hole (4), and the height of the broken spring indicator is adjusted by controlling the screwing depth of the adjusting nut (12).

6. The break spring indicator of a spring floating slab vibration isolator without opening the cover according to claim 5, characterized in that, The upper surface of the adjusting nut (12) is flush with the upper surface of the cover plate (31).

7. The break spring indicator of a spring floating plate vibration isolator without opening the cover according to claim 6, characterized in that, The strong magnetic base (5) and the screw rod (11) are fixedly connected into a whole by means of adhesion or threaded connection.

8. The broken spring indicator of a spring floating slab vibration isolator without opening the cover according to claim 1, characterized in that, It further includes a locking plate (6), the locking plate (6) is installed inside the outer sleeve (3), and the lower end of the strong magnetic base (5) is connected to the locking plate (6).

9. The break spring indicator of a spring floating slab vibration isolator without opening the cover according to claim 8, characterized in that, It further includes an adjusting gasket (7), the adjusting gasket (7) is arranged between the locking plate (6) and the vibration isolator (2), and the lower end of the strong magnetic base (5) passes through the locking plate (6) and is connected to the adjusting gasket (7).

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