CN211112945U - Vibration isolator failure indicating device - Google Patents
Vibration isolator failure indicating device Download PDFInfo
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- CN211112945U CN211112945U CN201920807937.8U CN201920807937U CN211112945U CN 211112945 U CN211112945 U CN 211112945U CN 201920807937 U CN201920807937 U CN 201920807937U CN 211112945 U CN211112945 U CN 211112945U
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- permanent magnet
- vibration isolator
- indicating device
- isolator failure
- failure indication
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Abstract
The utility model relates to a track traffic technical field discloses a isolator inefficacy indicating device, including the pilot lever and set up the permanent magnet in the one end of pilot lever, its characterized in that the tip of pilot lever is provided with the magnetism shielding casing, the magnetism shielding casing is kept away from one side of pilot lever is the open-ended, the permanent magnet sets up in the magnetism shielding casing. The utility model provides a isolator inefficacy indicating device protects its inside permanent magnet can not receive the impact and damage through setting up the magnetic screen casing, in addition, can improve the holding power between the roof on isolator inefficacy indicating device and the inner skleeve to can also avoid magnetic line of force to leak, prevent that isolator inefficacy indicating device from adsorbing things such as iron fillings, iron wire in the tunnel, guarantee that isolator inefficacy indicating device surface is clean and tidy.
Description
Technical Field
The disclosure relates to the technical field of rail transit, in particular to a vibration isolator failure indicating device.
Background
The steel spring floating plate vibration isolator is usually hidden below the barrel cover, and after the vibration isolator failure indicating device is additionally arranged, the working state of the vibration isolator can be judged without opening the barrel cover through observing the indicating device. The bottom of the traditional vibration isolator failure indicating device is adsorbed on the surface of the upper top plate of the inner sleeve through a permanent magnet. The permanent magnet is formed by sintering powder, has high hardness but is fragile, is greatly influenced by collision in construction, and has a large magnetic force, so that the adsorption process is one-time collision. Thus leading to a crash condition of the magnet of the vibration isolator failure indication means on the part of the construction site. In addition, as the construction site has more lime soil, the upper surface of the inner sleeve of the floating slab vibration isolator is often covered by the lime soil, so that the suction force of the indicating device is reduced. And limited by the size of the opening of the barrel cover, the requirement that the indicator is installed from a small hole cannot increase the suction force in a mode of enlarging the size of the magnet is met.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
An object of the present disclosure is to solve at least one aspect of the above problems and disadvantages in the related art.
(II) technical scheme
In order to solve the technical problem, the present disclosure provides a vibration isolator failure indication device, including instruction pole and the permanent magnet of setting in the one end of instruction pole the tip of instruction pole is provided with the magnetism shielding casing, the magnetism shielding casing is kept away from one side of instruction pole is the open-ended, the permanent magnet setting is in the magnetism shielding casing.
According to an embodiment of the present disclosure, the magnetic shield case includes a base portion perpendicular to an axial direction of the indication rod and a side wall extending from an outer edge of the base portion in an axial direction parallel to the indication rod.
According to an embodiment of the present disclosure, a washer is provided between the permanent magnet and the magnetic shield case.
According to an embodiment of the disclosure, the washer is arranged between the permanent magnet and the base and/or between the permanent magnet and the side wall.
According to one embodiment of the present disclosure, the material of the gasket is plastic, nylon, resin.
According to an embodiment of the present disclosure, an end of the permanent magnet, which is far away from the indication rod, is closer to the indication rod than a free end of a sidewall of the magnetic shielding case and an end of the washer, which is far away from the indication rod.
According to an embodiment of the present disclosure, the permanent magnet and the magnetic shielding case are connected to the indication rod by a stainless steel screw or bolt, and a through hole for the stainless steel screw or bolt to pass through is provided in the middle of the permanent magnet and the magnetic shielding case.
According to an embodiment of the present disclosure, an end of the stainless steel screw or bolt distal from the indication rod is closer to the indication rod than an end of the permanent magnet distal from the indication rod.
According to an embodiment of the present disclosure, the material of the permanent magnet is neodymium iron boron.
According to an embodiment of the present disclosure, the material of the magnetic shield case is a magnetic shield metal.
(III) advantageous effects
According to the vibration isolator failure indicating device provided by the disclosure, the magnetic shielding shell is arranged to protect the holding magnet inside the vibration isolator failure indicating device from being damaged due to impact, in addition, one side of the magnetic shielding shell is opened to increase the magnetic force on one side of the opening and reduce the magnetic force on other sides, so that the holding force between the vibration isolator failure indicating device and the top plate on the inner sleeve is improved. In addition, can also avoid magnetic line of force to leak, prevent that isolator inefficacy indicating device from adsorbing objects such as iron fillings, iron wire in the tunnel, guarantee that isolator inefficacy indicating device surface is clean and tidy.
Drawings
Figure 1 is a schematic structural view of a preferred embodiment of an isolator failure indication apparatus according to the present disclosure; and
figure 2 is a schematic structural view of a preferred embodiment of an isolator failure indication apparatus according to the present disclosure.
Detailed Description
Specific embodiments of the present disclosure are described in further detail below with reference to the accompanying drawings and examples. The following examples are intended to illustrate the present disclosure, but are not intended to limit the scope of the present disclosure.
Figure 1 illustrates a preferred embodiment of an isolator failure indication apparatus according to the present disclosure. As shown in the figure, the vibration isolator failure indicating device comprises an indicating rod 1 and a permanent magnet 2 arranged at one end part of the indicating rod 1, wherein a magnetic shielding shell 3 for shielding magnetism is arranged at the end part of the indicating rod 1, the permanent magnet 2 is arranged in the magnetic shielding shell 3, one side, away from the indicating rod 1, of the magnetic shielding shell 3 is open, namely one side, close to a top plate 6 on an inner sleeve, of the magnetic shielding shell is open, so that one side, close to the top plate 6 on the inner sleeve, of the magnetic shielding shell has strong magnetic force, and the other sides of the magnetic shielding shell have almost no magnetism, and therefore the suction holding force between the vibration isolator failure indicating device. According to the vibration isolator failure indicating device provided by the disclosure, the magnetic shielding shell 3 is arranged to protect the permanent magnet 2 in the magnetic shielding shell from being damaged due to impact, and in addition, one side of the magnetic shielding shell 3 close to the top plate 6 on the inner sleeve is open, so that the suction force between the vibration isolator failure indicating device and the top plate 6 on the inner sleeve is improved. In addition, can also avoid the magnetic line of force to leak, prevent that isolator inefficacy indicating device from holding things such as iron fillings, iron wire in the tunnel, guarantee that isolator inefficacy indicating device surface is clean and tidy.
Because strong magnetic permanent magnet materials such as neodymium iron boron have the characteristics of small volume and strong magnetic force, the permanent magnet 2 preferably selects the strong magnetic permanent magnet materials such as neodymium iron boron. However, it should be noted that in other embodiments of the present disclosure, the permanent magnet 2 may be selected from other types of permanent magnets. In addition, magnetic shield casing 3 chooses for use metal material to improve the sturdiness of magnetic shield casing 3, prevent to receive the impact and damage, thereby improve isolator failure indication device's life.
In an exemplary embodiment, as shown in fig. 1, the magnetic shield case 3 includes a base portion perpendicular to the axial direction of the indication rod 1 and a side wall extending from an outer edge of the base portion in parallel to the axial direction of the indication rod 1. In this embodiment, since the cross section of the indication lever 1 is circular, the base portion of the magnetic shield case 3 is also circular. However, it should be noted that in other embodiments of the present disclosure, the base may be square, oval, etc.
In an exemplary embodiment, as shown in fig. 1, an annular washer 4 is disposed between the permanent magnet 2 and the magnetic shield case 3 to effectively connect and fix the permanent magnet 2 and the magnetic shield case 3 and to perform a buffering function during an impact, thereby further protecting the permanent magnet 4. The gasket 4 may be made of an elastic material such as plastic, nylon, or resin. In this embodiment, the washer 4 is disposed between the permanent magnet 2 and the side wall of the magnetic shield case 3. It should be noted, however, that in other embodiments of the present disclosure, washers may also be provided between the permanent magnet 2 and the base of the magnetic shield housing 3 (as shown in fig. 2) to further cushion during impact, or only between the permanent magnet 2 and the base of the magnetic shield housing 3, as will be appreciated by those skilled in the art.
In an exemplary embodiment, as shown in fig. 1, the end of the permanent magnet 2 remote from the indication rod 1 is closer to the indication rod 1 than the free end of the side wall of the magnetic shield case 3 and the end of the washer 4 remote from the indication rod. That is, the magnetic shield case 3 and the washer 4 protrude downward from the lower end face of the permanent magnet 4 to protect the permanent magnet 2 from direct impact.
In an exemplary embodiment, as shown in fig. 1, the permanent magnet 2 and the magnetic shield case 3 are connected to the indication rod by a screw (or bolt) 5 made of stainless steel, and a through hole through which the screw (or bolt) 5 passes is provided at the center of the permanent magnet 2 and the magnetic shield case 3. However, it should be noted that, in some other embodiments of the present disclosure, the permanent magnet 2 and the magnetic shielding shell 3 may be connected to the indication rod 1 by other means, such as adhesion, etc.
In an exemplary embodiment, as shown in fig. 1, the end of the screw (or bolt) 5 remote from the indication rod 1 is closer to the indication rod 1 than the end of the permanent magnet 2 remote from the indication rod. In this way, the screw (or bolt) 5 does not protrude from the bottom surface of the indicator 1, and thus does not affect the flatness of the bottom surface of the vibration isolator failure indicating device.
The present disclosure is to be considered as limited only by the preferred embodiments and not limited to the specific embodiments described herein, and all changes, equivalents, and modifications that come within the spirit and scope of the disclosure are desired to be protected.
Claims (10)
1. The utility model provides a isolator inefficacy indicating device, includes the pilot lever and sets up the permanent magnet in the one end of pilot lever, its characterized in that the tip of pilot lever is provided with the magnetism shielding casing, the magnetism shielding casing is kept away from one side of pilot lever is the open-ended, the permanent magnet setting is in the magnetism shielding casing.
2. The vibration isolator failure indication device of claim 1, wherein the magnetic shield housing includes a base perpendicular to an axial direction of the indicator rod and a sidewall extending from an outer edge of the base in an axial direction parallel to the indicator rod.
3. The vibration isolator failure indication apparatus of claim 2, wherein a washer is disposed between the permanent magnet and the magnetically shielded housing.
4. The vibration isolator failure indication device of claim 3, wherein the washer is disposed between the permanent magnet and the base and/or between the permanent magnet and the sidewall.
5. The vibration isolator failure indication device of claim 3, wherein the washer is made of a material selected from the group consisting of plastic, nylon, and resin.
6. The vibration isolator failure indication apparatus of claim 3, wherein an end of the permanent magnet distal from the indicator rod is closer to the indicator rod than a free end of a sidewall of the magnetic shield shell and an end of the washer distal from the indicator rod.
7. The vibration isolator failure indicating device of claim 1, wherein the permanent magnet and the magnetic shielding shell are connected with the indicating rod through stainless steel screws or bolts, and through holes for the stainless steel screws or bolts to pass through are formed in the middle of the permanent magnet and the magnetic shielding shell.
8. The vibration isolator failure indication apparatus of claim 7, wherein an end of the stainless steel screw or bolt distal from the indicator rod is closer to the indicator rod than an end of the permanent magnet distal from the indicator rod.
9. The vibration isolator failure indication device according to any of claims 1-8, wherein the material of the permanent magnet is neodymium iron boron.
10. The vibration isolator failure indication device according to any of claims 1-8, wherein the material of the magnetic shield shell is metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920807937.8U CN211112945U (en) | 2019-05-30 | 2019-05-30 | Vibration isolator failure indicating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920807937.8U CN211112945U (en) | 2019-05-30 | 2019-05-30 | Vibration isolator failure indicating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211112945U true CN211112945U (en) | 2020-07-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920807937.8U Active CN211112945U (en) | 2019-05-30 | 2019-05-30 | Vibration isolator failure indicating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211112945U (en) |
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2019
- 2019-05-30 CN CN201920807937.8U patent/CN211112945U/en active Active
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