CN218287752U - Anti-falling device of sensor - Google Patents

Abstract

The utility model relates to a railway vehicle bogie vehicle-mounted sensor installs technical field, concretely relates to anti-drop device of sensor, including device body, locking mechanism and fixed part, the device body is used for threaded connection installation base, and the device body is equipped with the mating holes that supplies the locking mechanism activity, and locking mechanism includes rotary part, elastic component and the friction cushion that sets gradually, and rotary part and mating holes threaded connection, friction cushion are used for contacting the installation base; the fixing component is arranged on the device body and used for fixing the sensor; the utility model discloses a twist soon locking mechanism and guarantee that dropout prevention means's operating condition can not change to prevent that the sensor from being rotatory not hard up because of the vibration effect, simple structure has anti-drop's function, does benefit to the security when improving the vehicle and traveling.

Description

Anti-falling device of sensor

Technical Field

The utility model relates to a railway vehicle bogie vehicle-mounted sensor installs technical field, especially an anti-drop device of sensor.

Background

The bogie is a key part of the railway vehicle, and the running state of the bogie directly influences the running safety and the comfort and smoothness of the vehicle. The mounting of the vehicle-mounted sensor on the bogie is an effective way for monitoring the running state of the bogie, and provides powerful data support for developing intelligent operation and maintenance of railway vehicles.

The sensor is usually fixed by a screw connection. The railway vehicle has high running speed and complex line working condition, when the vehicle runs, the bogie vibrates violently, and the vehicle-mounted sensor arranged on the bogie is influenced by vibration impact for a long time, so that the risk of loosening and falling exists; if the vehicle-mounted sensor falls off, parts on a bogie of a high-speed running train are easily damaged, and real-time acquisition of state data of the bogie and even running safety of the train are affected.

Therefore, it is necessary to make higher demands on the mounting robustness of the in-vehicle sensor.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: to the problem that there is not hard up risk of droing because of the influence of bogie vibration impact of prior art on-vehicle sensor, provide the dropout prevention means of a sensor for prevent that the sensor pine from taking off.

In order to realize the purpose, the utility model discloses a technical scheme be:

an anti-falling device of a sensor comprises a device body, a locking mechanism and a fixed part, wherein the device body is used for being in threaded connection with an installation base and is provided with a matching hole for the locking mechanism to move; the fixing component is arranged on the device body and used for fixing the sensor.

Above-mentioned dropout prevention means is through the fit hole internal rotation rotary part at the device body, compress the elastic component downwards, when making the elastic component exert pressure increase friction cushion and install the static frictional force between the base to the friction cushion, the counter-action is to rotary part increase threaded connection's pretightning force, thereby reach the fixed purpose of locking, guarantee dropout prevention means's operating condition can not change, thereby be convenient for through the spacing sensor of the fixed part on the device body, prevent that the sensor from rotatory pine under the vibration action from taking off. The fixed part and the device body can limit the sensor in the vibration direction in a fixed connection mode, and can also limit the circumferential rotation of the sensor in a movable connection mode so as to prevent the sensor from loosening; the limiting structure between the fixing part and the sensor can adopt various forms and is matched according to the structure of the specific sensor.

The utility model discloses simple structure can prevent that the sensor is not hard up, has anti-drop's function, does benefit to the security when improving the vehicle and travel.

Preferably, the fixing part is hinged to the device body, the fixing part can rotate vertically, a spring is arranged between the fixing part and the device body and connected with the fixing part, and the fixing part can be kept in a locking state under the action of the spring to perform circumferential limiting. When the sensor is required to be disassembled and assembled, the sensor can be quickly separated from the sensor for disassembly and assembly through rotating the fixing part, and the disassembly and the assembly are more convenient and quicker.

Preferably, the spring is located between the head of the fixed part and the hinged position. Wherein, the head of the fixing part is the contact end with the sensor.

Preferably, the spring is an extension spring, and is in an extension state in an operating state.

Preferably, the sensor comprises a locking member, which can be snapped into engagement with the fixing member.

Preferably, the anti-loosening component is of a gasket structure, the outer edge of the gasket is provided with a notch, and the notch is matched with the head of the fixing component and used for circumferential limiting; or, the gasket is circumferentially provided with a groove which is matched with the head of the fixing part and has circumferential limiting and pressing effects.

Preferably, the fixing part is of an S-shaped rod structure and is simple in structure.

Preferably, the anti-drop device sets up the quantity along installation base circumference at least two.

Preferably, the elastic member is a compression spring.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. the utility model provides an anti-drop device guarantees that anti-drop device's operating condition can not change through revolving to twist locking mechanism to prevent that the sensor from being rotatory not hard up because of the vibration effect, simple structure has anti-drop's function, does benefit to the security when improving the vehicle and travel.

2. The utility model provides an anti-drop device, simple structure, quick detachable, installation.

3. The utility model provides an anti-drop device has reduced routine maintenance personnel's maintenance work load.

Drawings

Fig. 1 is a schematic structural view of the dropout prevention means when assembled.

Fig. 2 is an enlarged view of a portion a in fig. 1.

Fig. 3 is an enlarged view of a portion B in fig. 1.

Fig. 4 is a schematic structural view of the falling off preventive device.

Fig. 5 is a schematic view of the structure of the locking mechanism.

Fig. 6 is a schematic view of the sensor structure.

Fig. 7 is a top view of the sensor.

Icon: 1-the device body; 11-a platform part; 12-bolt connection; 2-a locking mechanism; 21-a rotating member; 22-an elastic member; 23-a friction pad; 3-a stationary part; 4, mounting a base; 5-a sensor; 51-a locking member; 511-notch; 52-cable connection interface; 53-a fastening part; 6-a spring; 7-the part to be tested.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

Example 1

An anti-falling device of a sensor is disclosed, as shown in fig. 1-7, comprising a device body 1, a locking mechanism 2 and a fixing part 3, wherein the device body 1 is used for being connected with a mounting base 4 in a threaded manner, and the mounting base 4 is used for mounting a sensor 5; the device body 1 is provided with a matching hole for the locking mechanism 2 to move, the locking mechanism 2 comprises a rotating part 21, an elastic part 22 and a friction cushion block 23 which are sequentially arranged, the rotating part 21 is in threaded connection with the matching hole, and the friction cushion block 23 is used for contacting the mounting base 4; the fixing member 3 is provided on the apparatus body 1 for fixing the sensor 5.

The anti-falling device rotates the rotating component 21 in the matching hole of the device body 1, the elastic component 22 is vertically compressed, the elastic component 22 can generate pressing force, the elastic component 22 applies pressure to the friction cushion block 23, the friction cushion block 23 is tightly attached to the mounting base 4 under the pressure action of the elastic component 22, the static friction force between the friction cushion block 23 and the mounting base 4 is increased, and the anti-falling device cannot rotate; since the fixing member 3 is used to fix the fitting sensor 5, the in-vehicle sensor 5 is prevented from coming loose and falling off. In addition, when the elastic element 22 applies pressure to the friction pad 23, the elastic element also reacts on the rotating component 21 to increase the pretightening force of the threaded connection of the rotating component, so that the purpose of locking and fixing is achieved, and the working state of the anti-falling device is guaranteed not to be changed.

Specifically, as shown in fig. 4, the device body 1 includes a platform portion 11 and a bolt connecting portion 12 with an external thread, the bolt connecting portion 12 is integrally disposed at the bottom of the platform portion 11, the cross-sectional dimension of the bolt connecting portion 12 is smaller than that of the platform portion 11, and the platform portion is of a cylindrical structure or a platform body structure; correspondingly, a countersunk mounting hole matched with the shape and the size of the device body 1 is formed in the corresponding position on the mounting base 4, a threaded hole for connecting the sensor 5 is formed in the middle of the mounting base 4, and the mounting base 4 is used for fixing the sensor 5 on the tested part 7. In this embodiment, preferably, at least two mounting holes are uniformly formed in the mounting base 4 along the circumferential direction for mounting the anti-falling device, so that the locking of the sensor 5 is more stable.

In order to increase the contact area between the friction cushion block 23 and the mounting base 4 in the locking mechanism 2, a hole can be expanded at the bottom of the device body 1 corresponding to the matching hole, and the friction cushion block 23 is in an inverted T shape. The elastic member 22 may be a spring member, preferably a compression spring, with a suitable gap reserved between the elastic member 22 and the mating hole, or the elastic member 22 may be other members with self-restoring deformation capability, such as a rubber pad.

Further, the sensor 5 to be installed in this embodiment, as shown in fig. 6 and 7, includes a sensor body, a cable connection interface 52, and a locking component 51 for matching with the fixing component 3, the cable connection interface 52 is disposed on a side wall of the sensor body, a threaded connection portion is disposed at the bottom of the sensor body, the locking component 51 is integrally disposed with the sensor body, and the locking component 51 in this embodiment is in a form of a gasket structure. The gasket is fixedly connected with the sensor 5 by additionally arranging the gasket on the sensor 5, and the gasket is flatly attached to the surface of the mounting base 4 when the sensor 5 is mounted on the mounting base 4. Wherein, the outer edge of gasket evenly sets up a plurality of breachs 511 along circumference and is used for cooperating fixed part 3 to carry out circumference spacing. In order to facilitate the assembly and disassembly, the fixed part 3 of the anti-drop device is hinged on the device body 1, and the fixed part 3 can vertically rotate; a high-strength spring 6 is arranged between the head part (the contact end with the sensor 5) of the fixing part 3 and the hinged position, the spring 6 is in a stretching state during work, two ends of the spring 6 are respectively connected with the device body 1 and the fixing part 3, so that the fixing part 3 can be kept in a locking state, and the sensor 5 can be separated and the limit state can be released by rotating the fixing part 3. In this embodiment, the fixing component 3 is of an S-shaped rod structure, the head of the fixing component 3 is vertically arranged relative to the gasket and is matched with the notch 511 at the edge of the gasket in shape, and the tail of the fixing component 3 is tilted to facilitate pressing.

When the device is used, the mounting base 4 is firstly mounted on the tested part 7 of the bogie, then the anti-falling device is mounted on the corresponding position of the mounting base 4, and the vehicle-mounted sensor 5 is mounted on the mounting base 4 by utilizing the matching of a wrench and the fastening part 53 on the sensor 5. An operator rotates the head of the fixing component 3 around a connection point on the device body 1 to enable the head to be close to the anti-loosening component 51 on the sensor 5, the rotating device body 1 is adjusted to a proper position, the fixing component 3 is clamped into the gap 511 of the edge of the gasket to carry out circumferential limiting, and finally the locking mechanism 2 is screwed to complete installation of the vehicle-mounted sensor 5.

When the vehicle-mounted sensor 5 needs to be disassembled, an operator can unscrew the locking mechanism 2, press the tail of the fixing part 3 by hand, lift the head of the fixing part 3, keep the fixing part 3 away from the anti-loosening part 51 through the rotating device body 1, separate the head of the fixing part 3 from the anti-loosening part 51 at the moment, and then disassemble the vehicle-mounted sensor 5.

Example 2

Compared to embodiment 1, this embodiment provides other alternative embodiments, differing only in the limit structure between the sensor and the fixed part: and a groove matched with the head of the fixed part is circumferentially arranged on the gasket of the sensor. The head of the fixing component is matched and limited in the groove, the locking state is kept unchanged under the limiting and spring stretching effects of the locking mechanism, the fixing component can limit circumferential rotation of the sensor or the gasket under the vibration effect, the anti-loosening purpose is achieved, the limiting state is relieved by rotating the fixing component, the gasket can be pressed under the spring effect by the fixing component, and a certain limiting effect is achieved in the vibration direction.

Or, a deflector rod structure for limiting reverse looseness of the sensor is arranged on the device body, the deflector rod structure is clamped with the anti-loosening component/cable connecting interface of the sensor, and a limiting mechanism such as a gear meshing mechanism can be adopted, so that the device is not limited to the structural form.

Further, the structural form of the fixing component is also not limited to the above examples, and other manners may be adopted, such as: a flat plate can be arranged at the contact end of the fixed part and is compacted on the surface of the gasket to limit the position of the gasket from the vibration direction of the sensor; the flat plate bolt is fixed on the device body, so that the dismounting and the mounting are convenient; the bottom of the flat plate can be further provided with fine teeth to increase the gripping force with the gasket.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (9)

1. The anti-falling device of the sensor is characterized by comprising a device body (1), a locking mechanism (2) and a fixing component (3), wherein the device body (1) is used for being in threaded connection with an installation base (4), the device body (1) is provided with a matching hole for the locking mechanism (2) to move, the locking mechanism (2) comprises a rotating component (21), an elastic component (22) and a friction cushion block (23) which are sequentially arranged, the rotating component (21) is in threaded connection with the matching hole, and the friction cushion block (23) is used for being in contact with the installation base (4); the fixing part (3) is arranged on the device body (1) and is used for fixing the sensor (5).

2. The sensor anti-drop device according to claim 1, characterized in that the fixing part (3) is hinged with the device body (1), the fixing part (3) can rotate vertically, a spring (6) is arranged between the fixing part (3) and the device body (1) for connection, and the fixing part (3) can be kept in a locking state under the action of the spring (6).

3. The dropout prevention means of a sensor according to claim 2, wherein said spring (6) is located between the head of said fixed part (3) and the hinging position.

4. The dropout prevention means of a sensor according to claim 2, wherein said spring (6) is an extension spring.

5. The dropout prevention means of a sensor according to claim 1, wherein said sensor (5) comprises a locking member (51), said locking member (51) being capable of being snapped into engagement with said fixed member (3).

6. The dropout prevention means of a sensor according to claim 5, wherein said locking member (51) is a washer, the outer edge of said washer is provided with a notch (511), said notch (511) is matched with the head of said fixing member (3); or, a groove is arranged on the gasket along the circumferential direction and is used for matching the fixing part (3).

7. A sensor dropout prevention means according to any one of claims 1 to 6, wherein said fixing member (3) is an S-shaped bar.

8. The fall-off prevention device for a sensor according to any one of claims 1 to 6, wherein the number of the fall-off prevention devices is at least two along the circumferential direction of the mounting base (4).

9. A sensor dropout prevention means according to any one of claims 1 to 6, wherein said resilient member (22) is a compression spring.

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