Novel magnetic tail lamp for underground coal mine transport vehicle
By incorporating a crank-handle set screw mechanism and a strong magnet disc into the taillights of underground coal mine transport vehicles, the problems of easy taillight detachment and laborious disassembly and assembly have been solved, achieving stable adsorption and labor-saving disassembly, and improving the warning effect.
Patent Information
- Application Number
- CN202521316900.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-25
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-06-25
AI Technical Summary
Existing magnetic taillights are prone to falling off due to vibration in underground coal mine transport vehicles, or are difficult to install and remove, and their warning effect is not good.
A taillight structure comprising a housing, a battery pack, LED lights, and a permanent magnet disc was designed. It achieves stable adsorption through a crank-handle set screw mechanism, uses a strong magnet disc to adhere to the rear steel plate of the vehicle, and facilitates disassembly and installation through the cooperation of a threaded sleeve and a set screw rod.
It enables the taillights to be firmly attached to underground coal mine transport vehicles and to be removed with minimal effort, thus improving the warning effect.
Smart Images

Figure CN223953909U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a novel magnetic formula coal mine underground transport vehicle tail light. BACKGROUND
[0002] At present, in the underground vehicle transportation roadway, especially the track transportation roadway, a red tail light is hung on the rear part of the vehicle for warning the position of the vehicle. In the previous design, the red tail light is usually fixed on the vehicle body or the material carried by the vehicle by means of a latch or a wire hanging, which is easy to cause the deflection of the red light surface or the falling of the red light due to vibration.
[0003] The Chinese utility model patent with the publication number CN 201932076 U, which was authorized on August 17, 2011, discloses a trailer tail light base, which is mainly applied to the connection between the trailer tail light and the towed vehicle body. The trailer tail light base is composed of a bracket, a base, a magnetic steel bowl, a ferrite magnet and a flocked adhesive. The bracket is connected with the trailer tail light and has an external tooth structure. The bracket is connected with the base through a screw and a nut. The base is connected with the magnetic steel bowl through a screw and a nut. The ferrite magnet is arranged in the magnetic steel bowl. The flocked adhesive is attached to the lower surface of the ferrite magnet.
[0004] The Chinese utility model patent with the publication number CN 209977924 U, which was authorized on August 17, 2011, discloses a vertical LED wireless trailer combined tail light, which comprises a mounting frame, a flange base and a lamp body. The flange base is rotationally arranged at the bottom of the mounting frame. The bottom surface of the flange base is provided with a magnet disc. The surface of the flange base and the magnet disc is rubberized. The mounting frame is internally provided with a power supply box for placing a battery. The lamp body is provided with a position light, a turn signal light and a brake light. In the utility model, the equipment is convenient for replacing the battery. The equipment is installed by means of the magnet disc, which is convenient for adjusting the angle and using.
[0005]
[0006] The above two patents both disclose the technical scheme of fixing the tail light by means of the magnetic member. However, when the magnetic force is small, the tail light is easy to fall off due to the bumping of the vehicle. When the magnetic force is large, it is difficult to disassemble and assemble the tail light, which is inconvenient for maintenance and replacement. SUMMARY
[0007] The utility model wants to solve the technical problem of overcoming the above-mentioned defects of the prior art and providing a novel magnetic formula coal mine underground transport vehicle tail light.
[0008] To solve the above technical problems, the tail lamp for coal mine underground transport vehicle of the new type includes a shell, a battery pack, a switch, an LED lamp set and a permanent magnet disc, the permanent magnet disc is fixed on the back of the shell, the LED lamp set is arranged on the front of the shell and connected with the battery pack and the switch into a loop through wires, and the tail lamp is characterized in that it further includes a threaded sleeve and a jackscrew, the threaded sleeve penetrates and is fixed on the shell and the permanent magnet disc, an inner thread is formed on the inner wall of the threaded sleeve, the jackscrew is provided with an outer thread at the front part, the outer thread is matched with the inner thread, and the difference between the axial length of the outer thread and the axial length of the inner thread is greater than 3 cm, the rear end of the jackscrew is connected to the inner side of one end of a connecting plate, and a crank handle is connected to the outer side of the other end of the connecting plate to form a crank handle jackscrew mechanism.
[0009] In this way, the shell is provided with a handle. The permanent magnet disc can be made of a strong magnetic permanent magnet. In use, the tail lamp can be firmly adsorbed on the steel plate at the tail of the coal mine underground transport vehicle. When disassembly is needed, the crank handle jackscrew mechanism is taken, the jackscrew is screwed into the threaded sleeve, one hand holds the handle and the other hand shakes the crank handle to drive the jackscrew to rotate until the front end of the jackscrew extends out of the threaded sleeve, the tail lamp is lifted more than 2 cm away from the steel plate at the tail of the coal mine underground transport vehicle, the magnetic attraction of the permanent magnet disc is greatly attenuated due to the increased distance, and the tail lamp can be conveniently disassembled.
[0010] As an optimization, the crank handle is sleeved with a sleeve. In this way, the sleeve is held by hand and the crank handle is shaken, which is labor-saving and convenient.
[0011] As an optimization, the shell includes a circular panel and an annular side wall, and has a disc cover shape, a stepped hole is formed in the center of the circular panel and the center of the permanent magnet disc, each stepped hole is composed of a blind hole and a through hole in the center of the blind hole, an outer convex ring is arranged at one end of the outer wall of the threaded sleeve, an outer thread is formed on the rest of the outer wall, and an inner nut and an outer nut are respectively screwed, the threaded sleeve penetrates the through hole of the stepped hole of the circular panel and the permanent magnet disc, the outer convex ring is embedded in the blind hole of the permanent magnet disc, the inner nut and the outer convex ring clamp the permanent magnet disc, an annular boss is arranged on the inner wall of the annular side wall, the outer nut is embedded in the blind hole of the shell, and the outer edge of the permanent magnet disc is clamped on the annular boss. In this way, the structure is simple and convenient to disassemble.
[0012] As an optimization, the battery pack is a storage battery pack, and a charging socket is further arranged on the shell and connected with the positive and negative poles of the storage battery pack through wires. In this way, the tail lamp is convenient to charge.
[0013] As an optimization, the LED lamp set is composed of a plurality of red light LEDs, and the red light LEDs are arranged in a dot matrix on the front of the shell. In this way, the warning effect is good.
[0014] The tail lamp for coal mine underground transport vehicle of the new type is firmly adsorbed, labor-saving to disassemble, and suitable for use on coal mine underground transport vehicles. BRIEF DESCRIPTION OF DRAWINGS
[0015] The novel magnetic type tail lamp for coal mine underground transport vehicle is further described below in combination with the drawings:
[0016] Figure 1 is the front structure schematic diagram of the novel magnetic type tail lamp for coal mine underground transport vehicle;
[0017] Figure 2 is the back structure schematic diagram of the novel magnetic type tail lamp for coal mine underground transport vehicle;
[0018] Figure 3 is the right view structure schematic diagram of the novel magnetic type tail lamp for coal mine underground transport vehicle shown in Figure 1
[0019] Figure 4 is the A-A cross section structure schematic diagram of the novel magnetic type tail lamp for coal mine underground transport vehicle shown in Figure 1
[0020] Figure 5 is the structure schematic diagram of the crank handle jackscrew mechanism and sleeve of the novel magnetic type tail lamp for coal mine underground transport vehicle (the overall shape is similar to that of a tractor crank handle);
[0021] Figure 6 is the cross section schematic diagram of the novel magnetic type tail lamp for coal mine underground transport vehicle being jacked up from the vehicle body by using the crank handle jackscrew mechanism (cut along the vertical plane passing through the axis of the threaded sleeve).
[0022] In the drawings: 1 is the shell, 2 is the battery pack, 3 is the switch, 4 is the LED lamp group, 5 is the permanent magnet disc, 6 is the threaded sleeve, 7 is the jackscrew, 8 is the internal thread, 9 is the external thread, 10 is the connecting plate, 11 is the crank handle, 12 is the sleeve, 13 is the charging socket, 14 is the circular panel, 15 is the annular side wall, 16 is the outer convex ring, 17 is the inner nut, 18 is the outer nut, 19 is the annular boss, 20 is the tail steel plate of the coal mine underground transport vehicle, 21 is the handle, L1 is the axial length of the external thread 9, L2 is the axial length of the internal thread 8. DETAILED DESCRIPTION
[0023] Embodiment one: as shown in Figures 1-6 As shown, the novel magnetic coal mine tail lamp for underground transport vehicle comprises a shell 1, a battery pack 2, a switch 3, an LED lamp set 4 and a permanent magnet disc 5, the permanent magnet disc 5 is fixed on the back of the shell 1, the LED lamp set 4 is arranged on the front of the shell 1 and connected with the battery pack 2 and the switch 3 into a loop through wires (not shown in the figure), characterized in that it further comprises a threaded sleeve 6 and a top screw rod 7, the threaded sleeve 6 penetrates and is fixed on the shell 1 and the permanent magnet disc 5, an inner thread 8 is formed on the inner wall of the threaded sleeve 6, the top screw rod 7 is provided with an outer thread 9 at the front, the outer thread 9 is matched with the inner thread 8, and the difference between the axial length L1 of the outer thread 9 and the axial length L2 of the inner thread 8 is greater than 3 cm, the rear end of the top screw rod 7 is connected to the inner side of one end of a connecting plate 10, the other end of the connecting plate 10 is connected with a crank 11 on the outer side, forming a crank top screw mechanism. A sleeve 12 is sleeved on the crank 11.
[0024] The battery pack 2 is a storage battery pack, and a charging socket 13 is further arranged on the shell 1, which is connected with the positive and negative poles of the storage battery pack through wires.
[0025] The LED lamp set 4 is composed of a plurality of red light LEDs, and the red light LEDs are arranged in a dot matrix on the front of the shell 1.
[0026] The shell 1 comprises a circular panel 14 and an annular side wall 15, and has a disc cover shape, the center of the circular panel 14 and the center of the permanent magnet disc 5 are both provided with a stepped hole, each stepped hole is composed of a blind hole and a through hole at the center of the blind hole, one end of the outer wall of the threaded sleeve 6 is provided with an outer convex ring 16, the rest of the outer wall is provided with an outer thread, and an inner nut 17 and an outer nut 18 are respectively screwed, the threaded sleeve 6 penetrates the through hole of the stepped hole of the circular panel 14 and the permanent magnet disc 15, the outer convex ring 16 is embedded in the blind hole of the permanent magnet disc 5, and the inner nut 17 and the outer convex ring 16 clamp the permanent magnet disc, the inner wall of the annular side wall 15 is provided with an annular boss 19, the outer nut 18 is embedded in the blind hole of the shell 1, and the outer edge of the permanent magnet disc 5 is clamped on the annular boss 19.
Claims
1. A novel magnetic taillight for underground coal mine transport vehicles, comprising a housing, a battery pack, a switch, an LED light assembly, and a permanent magnet disk, wherein the permanent magnet disk is fixed to the back of the housing, the LED light assembly is disposed on the front of the housing, and is connected to the battery pack and the switch to form a circuit via wires, characterized in that: It also includes a threaded sleeve and a top screw rod. The threaded sleeve passes through and is fixed on the housing and the permanent magnet disk. It has an internal thread on its inner wall. The top screw rod has an external thread at the front. The external thread matches the internal thread, and the difference between the axial length of the external thread and the axial length of the internal thread is greater than 3 cm. The rear end of the top screw rod is connected to the inner side of one end of a connecting plate, and a rocker arm is connected to the outer side of the other end of the connecting plate, forming a rocker arm top screw mechanism.
2. The novel magnetic taillight for underground coal mine transport vehicles according to claim 1, characterized in that: The crank handle is fitted with a sleeve.
3. The novel magnetic taillight for underground coal mine transport vehicles according to claim 1, characterized in that: The housing includes a circular panel and an annular sidewall, forming a disc shape. Both the center of the circular panel and the center of the permanent magnet disk have stepped holes. Each stepped hole consists of a blind hole and a through hole in the center of the blind hole. One end of the outer wall of the threaded sleeve is provided with an external convex ring, and the remaining outer walls are provided with external threads, and are respectively fitted with an inner nut and an outer nut. The threaded sleeve passes through the through holes of the stepped holes in the circular panel and the permanent magnet disk. The external convex ring is embedded in the blind hole of the permanent magnet disk, and the inner nut and the external convex ring clamp the permanent magnet disk. An annular boss is provided on the inner wall of the annular sidewall, and the outer nut is embedded in the blind hole of the housing. The outer edge of the permanent magnet disk is engaged with the annular boss.
4. The novel magnetic taillight for underground coal mine transport vehicles according to claim 1, characterized in that: The battery pack is a storage battery pack, and the casing is also provided with a charging port, which is connected to the positive and negative terminals of the storage battery pack through wires.
5. The novel magnetic taillight for underground coal mine transport vehicles according to claim 1, characterized in that: The LED light group consists of multiple red LEDs, which are arranged in a dot matrix on the front of the housing.
Citation Information
Patent Citations
Base for tail lamp of trailer
CN201932076U
Vertical LED wireless trailer combination tail lamp
CN209977924U