Railway vehicle temporary maintenance lighting device based on magnetic attraction fixation

Abstract

The utility model discloses a railway vehicle temporary maintenance lighting device based on magnetic attraction fixation, which relates to the technical field of railway vehicle maintenance lighting and comprises a fixing frame, and a searchlight is hinged to one end of the fixing frame. The supporting frame is arranged at the other end of the fixing frame; the independent magnetic attraction assemblies are distributed on the outer side wall of the supporting frame at intervals and comprise short bolts connected to the outer side wall of the supporting frame in a threaded mode, sleeves are arranged at the ends, away from the searchlight, of the short bolts, powerful magnetic attraction pieces are installed at the ends of the sleeves, and a plurality of round holes are formed in the ends of the sleeves and the surfaces of the powerful magnetic attraction pieces. The inner side wall of the round hole is slidably connected with a pin, and the other end of the pin is elastically connected into the sleeve to form a telescopic pin. According to the utility model, the surface contact is dispersed into a plurality of point contacts, so that the contact is better attached to an arc surface or a welding seam, invalid gaps are reduced, and the actual effective contact area and the total suction force are improved; and the plurality of protruding pins rotate synchronously, so that the oil stain layer can be punctured or extruded under the pressure of the spring.

Description

Technical Field

[0001] This utility model relates to the field of railway vehicle maintenance lighting technology, and in particular to a temporary maintenance lighting device for railway vehicles based on magnetic fixation. Background Technology

[0002] Railway vehicles are transportation vehicles that run on fixed tracks. During operation and maintenance, railway vehicles often require temporary on-site maintenance work, such as troubleshooting or routine inspections of the running gear, undercarriage equipment, and connecting components. When this is done at night, in a garage, or in an environment with insufficient light, temporary maintenance lighting devices are needed. Among these, magnetic searchlights, which are fixed to the metal surface of the car body using the principle of magnetic adsorption, are widely used because they are quick to place and easy to position.

[0003] Existing temporary maintenance lighting devices for railway vehicles based on magnetic fixation, such as magnetic searchlights, often suffer from unevenness due to process welds, curvature, and maintenance issues on the vehicle surface during actual operation. This prevents the magnetic surface from adhering tightly, significantly reducing the effective contact area and thus the adsorption force, which is at risk of detachment under vibration. In addition, dust, oil, and water stains accumulated during vehicle operation form a physical barrier between the magnet and the vehicle surface, severely hindering the tight adhesion between the magnetic surface and the vehicle body, resulting in a significant decrease in actual adsorption force. In view of this, we propose a temporary maintenance lighting device for railway vehicles based on magnetic fixation. Utility Model Content

[0004] This invention provides a temporary maintenance lighting device for railway vehicles based on magnetic fixation to solve the above-mentioned technical problems.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] A temporary maintenance lighting device for railway vehicles based on magnetic fixation includes a fixing frame, with a searchlight hinged to one end of the fixing frame;

[0007] The support frame is located at the other end of the fixing frame;

[0008] The independent magnetic components are distributed at intervals on the outer wall of the support frame. They include short bolts threaded to the outer wall of the support frame. A sleeve is provided at the end of the short bolt away from the searchlight. A strong magnetic plate is installed at the end of the sleeve. Several round holes are opened on the end of the sleeve and the surface of the strong magnetic plate. A pin is slidably connected to the inner wall of the round hole. The other end of the pin is elastically connected to the inside of the sleeve to form a retractable pin.

[0009] Preferably, a spring is fixed to the inner wall of the sleeve, and a connecting piece is installed at the other end of the spring, with several pins installed on the outer wall of the connecting piece.

[0010] Preferably, the ends of the pins are rounded.

[0011] Preferably, the outer wall of the fixing frame is provided with a sliding groove, and a long bolt A is slidably connected to the inner wall of the sliding groove. The long bolt A is rotatably connected to the outer wall of the searchlight, and a nut is threaded to the other end of the long bolt A.

[0012] Preferably, the support frame includes an open-loop frame, and threaded lugs are provided at both ends of the bottom of the open-loop frame.

[0013] Preferably, a long bolt B is threaded onto the inner wall of the threaded lug, and the long bolt B can seal the opening of the open ring frame.

[0014] Beneficial effects:

[0015] This application discloses a temporary maintenance lighting device for railway vehicles based on magnetic attraction. It employs several independently adjustable magnetic components, dispersing surface contact into point contact, making it more closely fit curved surfaces or welds, reducing ineffective gaps, and increasing the actual effective contact area and total attraction force. Furthermore, when adjusting the independent magnetic components to fit the vehicle body, several protruding pins rotate synchronously, contacting the metal vehicle body before the strong magnetic plate. Under spring pressure, these pins pierce or push aside oil stains. Then, the strong magnetic plate magnetically attracts the corresponding part of the vehicle body, causing the spring to shorten and the pins to retract into the sleeve. This device solves the problem of poor adsorption functionality in existing temporary maintenance lighting devices for railway vehicles based on magnetic attraction. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This utility model discloses a structural schematic diagram of a temporary maintenance lighting device for railway vehicles based on magnetic fixation. Figure 1 ;

[0018] Figure 2 for Figure 1 Schematic diagram of the structure at point I;

[0019] Figure 3 This is a cross-sectional view of an independent magnetic component of a temporary maintenance lighting device for railway vehicles based on magnetic fixation, as disclosed in this utility model.

[0020] Figure 4 This utility model discloses a structural schematic diagram of a temporary maintenance lighting device for railway vehicles based on magnetic fixation. Figure 2.

[0021] In the diagram: 1. Fixture; 2. Slide; 3. Spotlight; 4. Long bolt A; 5. Support frame; 6. Independent magnetic assembly; 7. Nut;

[0022] 501. Open ring frame; 502. Threaded lug; 503. Long bolt B;

[0023] 601. Short bolt; 602. Sleeve; 603. Strong magnetic chuck; 604. Round hole; 605. Spring; 606. Connecting piece; 607. Needle. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] A temporary maintenance lighting device for railway vehicles based on magnetic fixation, combined with Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, it includes a fixed frame 1, and a searchlight 3 is hinged to one end of the fixed frame 1;

[0026] Support frame 5 is located at the other end of the fixing frame 1;

[0027] The independent magnetic components 6 are distributed at intervals on the outer wall of the support frame 5. They include short bolts 601 threaded to the outer wall of the support frame 5. A sleeve 602 is provided at the end of the short bolt 601 away from the searchlight 3. A strong magnetic plate 603 is installed at the end of the sleeve 602. Several round holes 604 are opened on the end of the sleeve 602 and the surface of the strong magnetic plate 603. A pin 607 is slidably connected to the inner wall of the round hole 604. The other end of the pin 607 is elastically connected to the inside of the sleeve 602 to form a retractable pin 607. This application employs several independently adjustable magnetic components 6 to disperse surface contact into several point contacts, making it more closely fit the curved surface or weld, reducing ineffective gaps, and increasing the actual effective contact area and total attraction force. Furthermore, when adjusting the independent magnetic components 6 to fit the car body, several protruding pins 607 rotate synchronously, contacting the metal car body before the strong magnetic plate 603. Under spring pressure, they can pierce or squeeze through the oil layer, allowing the strong magnetic plate 603 to more firmly magnetically hold the corresponding part of the car body, causing the spring to shorten under compression, and the pins 607 to retract into the sleeve 602. This device can solve the problem of poor adsorption functionality in existing magnetically fixed temporary maintenance lighting devices for railway vehicles.

[0028] Specifically, the fixed frame 1, as the main load-bearing structure, is connected to the searchlight 3 at one end via a hinge shaft, which allows for flexible adjustment of the illumination angle of the searchlight 3.

[0029] It should be noted that, in order to facilitate the threaded installation of the short bolt 601, a screw hole is provided at the corresponding position of the support frame 5, and the thickness of the support frame 5 is not limited to the thickness shown in the attached figure. In actual use, for ease of use, it can be set to be thicker or a nut post can be set so that the screw hole has a certain depth, so that the short bolt 601 can be firmly threadedly connected in the screw hole.

[0030] It should be noted that, in order to install the parts inside the sleeve 602, a flange is fixed to the end of the short bolt 601, and a flange is also installed at the open end of the sleeve 602. The short bolt 601 is connected to the end of the short bolt 601 by flanges, bolts, gaskets, nuts, etc. By rotating each short bolt 601 individually, the axial position of each strong magnetic chuck 603 can be independently fine-tuned, so that it can fit the contour of the car body with curved surfaces or large welds to a greater extent.

[0031] Preferably, a spring 605 is fixed to the inner wall of the sleeve 602, and a connecting piece 606 is installed at the other end of the spring 605. Several needles 607 are installed on the outer wall of the connecting piece 606. Several round holes 604 are opened on the end of the sleeve 602 and the strong magnetic plate 603. The multiple needles 607 are slidably installed in the corresponding round holes 604. The inner ends of all needles 607 are fixed together on the connecting piece 606. The spring 605 applies a force to the connecting piece 606, so that the needles 607 can extend and retract synchronously to reduce the impact of oil and rust. The connecting piece 606 and the several evenly distributed needles 607 are integrally formed.

[0032] Preferably, the ends of the pins 607 are rounded to reduce scratches.

[0033] Preferably, the outer wall of the fixing frame 1 has a groove 2, and a long bolt A4 is slidably connected to the inner wall of the groove 2. The long bolt A4 is rotatably connected to the outer wall of the searchlight 3, and the other end of the long bolt A4 is threadedly connected to a nut 7. The outer wall of the searchlight 3 housing is provided with an ear plate (not labeled in the figure). The long bolt A4 passes through the groove 2 and is rotatably connected to the ear plate on the searchlight 3 housing. The end is locked by the nut 7, realizing the locking and fixing of the searchlight 3 after the angle is adjusted.

[0034] Preferably, the support frame 5 includes an open-loop frame 501, with threaded lugs 502 at both ends of the bottom of the open-loop frame 501. Long bolts B503 are threadedly connected to the inner walls of the threaded lugs 502, and the long bolts B503 can seal the opening of the open-loop frame 501. The support frame 5 is fixedly connected to the end of the mounting frame 1 away from the searchlight 3, and serves as the mounting base for the independent magnetic assembly 6. The main body of the support frame 5 is an open-loop frame 501, with threaded lugs 502 with threaded holes at both ends of its bottom. The long bolts B503 can be screwed into the threaded lugs 502. When it is necessary to suspend the device on a crossbar or pipe, the long bolts B503 can be rotated to close the opening of the open-loop frame 501, forming a closed suspension ring, thus expanding the device's fixing methods.

[0035] The working principle of the device in this application is as follows:

[0036] The operator can first adjust the short bolts 601 according to the curvature of the local curved surface of the vehicle body, roughly adjust the adsorption plane composed of several strong magnetic plates 603, so that it roughly fits the outline of the vehicle body, disperse the surface contact into several point contacts, make it fit the curved surface or weld better, and reduce the ineffective gap.

[0037] When the device is brought close to the vehicle body, several pins 607 protruding from the surface of the strong magnetic plate 603 first contact the surface of the vehicle body. Since each pin 607 can slide synchronously, under the continuous pressure of the spring 605, the pins 607 that first contact the vehicle body can pierce or squeeze the oil film and dust layer on the surface of the vehicle body. When the independent magnetic assembly 6 is turned and adjusted to fit the vehicle body, several protruding pins 607 rotate synchronously, further piercing or squeezing the oil film and dust layer on the surface of the vehicle body.

[0038] Subsequently, the powerful magnetic 603 moves closer together and directly contacts the metal of the vehicle body in the area cleaned by the pin 607, adsorbing onto the outside of the vehicle body. This reduces the obstruction of magnetic lines of force by non-magnetic impurities, ensuring efficient conduction of the magnetic circuit. Thus, even in a dirty environment, it can restore and maintain a strong theoretical adsorption force, increasing the actual effective contact area and total attraction force.

[0039] When the strong magnetic plate 603 comes into contact with the vehicle body, the attraction force forces the pin 607 to retract, compressing the spring 605 and converting the hard impact into an elastic buffer, preventing the device from suddenly attracting and pinching the operator's fingers.

[0040] After the device is fixed and secure, the operator can loosen nut 7 and adjust the pitch angle of the searchlight 3 through the hinge shaft. After adjustment, tighten nut 7 to lock it in place (both the searchlight 3 and the strong magnetic plate 603 are existing products, and the searchlight 3 is connected to an external power supply and an external switch).

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A temporary maintenance lighting device for railway vehicles based on magnetic fixation, characterized in that, Includes a fixed frame (1), one end of which is hinged with a searchlight (3); The support frame (5) is located at the other end of the fixing frame (1); The independent magnetic suction assembly (6) has several of them distributed at intervals on the outer wall of the support frame (5), including short bolts (601) threaded to the outer wall of the support frame (5). A sleeve (602) is provided at the end of the short bolt (601) away from the searchlight (3). A strong magnetic suction piece (603) is installed at the end of the sleeve (602). Several round holes (604) are opened on the end of the sleeve (602) and the surface of the strong magnetic suction piece (603). A pin (607) is slidably connected to the inner wall of the round hole (604). The other end of the pin (607) is elastically connected to the inside of the sleeve (602) to form a retractable pin (607).

2. A temporary maintenance lighting device for railway vehicles based on magnetic fixation according to claim 1, characterized in that, A spring (605) is fixed to the inner wall of the sleeve (602), and a connecting piece (606) is installed at the other end of the spring (605). Several needles (607) are installed on the outer wall of the connecting piece (606).

3. A temporary maintenance lighting device for railway vehicles based on magnetic fixation according to claim 2, characterized in that, The ends of the pins (607) are provided with rounded corners.

4. A temporary maintenance lighting device for railway vehicles based on magnetic fixation according to any one of claims 1-3, characterized in that, The outer side wall of the fixed frame (1) is provided with a sliding groove (2), and the inner side wall of the sliding groove (2) is slidably connected with a long bolt A (4). The long bolt A (4) is rotatably connected to the outer side wall of the searchlight (3), and the other end of the long bolt A (4) is threaded with a nut (7).

5. A temporary maintenance lighting device for railway vehicles based on magnetic fixation according to claim 4, characterized in that, The support frame (5) includes an open-loop frame (501), and threaded ears (502) are provided at both ends of the bottom of the open-loop frame (501).

6. A temporary maintenance lighting device for railway vehicles based on magnetic fixation according to claim 5, characterized in that, The inner wall of the threaded lug (502) is threaded with a long bolt B (503), which can seal the opening of the open ring frame (501).

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