Portable dimming system for railway headlamp

Abstract

The portable dimming system comprises a lamp body, adjusting driving devices and an adjusting control device, a plurality of universal spherical mechanisms are arranged between the lamp body and a lamp bin, and the adjusting driving devices are arranged in the lamp bin and connected with the universal spherical mechanisms. The universal spherical mechanism is driven by the adjusting driving device to ascend and descend, the adjusting control device is installed in a train control room and used for driving an adjusting push rod of the adjusting driving device to move, the universal spherical mechanism drives the lamp body to swing under the pushing action of the adjusting push rod, and therefore the purpose of adjusting the irradiation direction of the light source is achieved. By the adoption of the technical scheme, multi-dimensional adjustment of the swing angle and the optical axis direction of the lamp body is facilitated, adjustment can be achieved without opening the lamp body, the adjustment mode is simple and rapid, the effects of free lamp body disassembly and external remote adjustment of the optical axis direction are achieved, the field adjustment efficiency is effectively improved, and the sealing performance and the service life of the lamp body are guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of subway headlamps, and particularly to a portable light-adjusting system for railway headlamps. Background Art

[0002] Railway trains are one of the important components in the rail transit system. The headlamps used for railways are very important and frequently used components during the operation of trains. When the train is running in a dim environment, the headlamps need to be kept on to clearly illuminate the distant road sections, ensuring the smooth running of the railway train. At the same time, it can also play a reminder role when entering the station. The existing headlamps for railway trains mainly use LED light sources, and there are also problems such as poor light focusing and light scattering. For this reason, the current railway headlamps have the function of adjusting the optical axis. However, when adjusting, the lamp cover needs to be opened, and the light source irradiation direction is adjusted through the adjustment mechanism inside the headlamp. This adjustment mechanism uses the cooperation of adjustment screws and adjustment springs, that is, after opening the lamp cover, the adjustment screws inside the lamp body are manually adjusted, and after the adjustment is completed, the headlamp is reinstalled in reverse. However, this adjustment method of the existing subway headlamps increases the manual working hours, wastes resources such as vulnerable parts, the entire adjustment operation process is cumbersome, the work efficiency is low, and the internal devices after disassembly cannot be guaranteed by the factory test, and external impurities are also very easy to enter the lamp body, affecting the sealing performance of the lamp body, thus affecting the overall performance of the headlamp. Summary of the Invention

[0003] Therefore, the technical problem to be solved by the present invention is to overcome the problems that the subway headlamp in the prior art needs to disassemble the lamp body to adjust the optical axis direction, the entire adjustment operation process is cumbersome, the work efficiency is low, and the internal devices after disassembly cannot be guaranteed by the factory test, and external impurities are also very easy to enter the lamp body, affecting the sealing performance of the lamp body, thus affecting the overall performance of the headlamp.

[0004] To solve the above problems, the present invention provides a portable light-adjusting system for railway headlamps, which includes:

[0005] A lamp body, which is arranged in a lamp compartment and is provided with a light source thereon; a plurality of universal spherical mechanisms are arranged between the lamp body and the lamp compartment, and the lamp body realizes multi-directional swinging in the lamp compartment through the plurality of universal spherical mechanisms to adjust the optical axis direction of the light source;

[0006] Adjustment driving devices, a plurality of which are arranged in the lamp compartment and are connected to the universal spherical mechanisms. The adjustment driving device includes an adjustment push rod that makes a linear reciprocating motion. The adjustment push rod is linked with the universal ball head of the universal spherical mechanism and drives the universal spherical mechanism to move its own position when moving;

[0007] The adjustment control device is installed away from the lamp body in the train driver's cab and is connected to the adjustment drive device. The adjustment control device is used to drive the adjustment push rod of the adjustment drive device to move, so that the universal spherical mechanism adjusts the swing angle of the lamp body under the drive of the adjustment push rod.

[0008] As a preferred solution, the adjustment drive device includes a drive housing fixed in the lamp chamber, and a drive unit arranged in the drive housing and driven by the adjustment control device. The drive unit includes a gear transmission assembly connected to the adjustment push rod. The adjustment push rod is movably arranged in the drive housing, and one end thereof extends out of the drive housing and is coaxially connected to the universal ball head. The gear transmission assembly drives the adjustment push rod to move along the axial direction of the universal ball head.

[0009] As a preferred solution, the gear transmission assembly includes a worm arranged in the drive housing, a rack structure extending along the movement direction of the adjustment push rod on the adjustment push rod, and at least one transmission gear rotatably connected between the worm and the gear structure. An access hole is arranged on the drive housing, and the worm has a coupling shaft extending in the access hole;

[0010] The adjustment control device includes a rotary operation module arranged in the train driver's cab, and a universal flexible shaft passing through the lamp chamber to connect the rotary operation module and the adjustment drive device. One end of the universal flexible shaft extends and is connected to the rotary operation module, and the other end thereof extends through the access hole and is linked with the worm.

[0011] As a preferred solution, the coupling shaft is provided with a linkage hole matched and connected with the universal flexible shaft. A protective sleeve is sleeved outside the universal flexible shaft. The drive housing is composed of two half-housings, and the two half-housings are joined together to form an access pipe with an access hole. The access pipe is formed with a limit card slot, and the protective sleeve penetrates into the access pipe and is provided with a limit card sleeve clamped in the limit card slot.

[0012] As a preferred solution, a guide groove extending along the movement direction of the adjustment push rod is arranged in the drive housing. The adjustment push rod is provided with a guide block connected in the guide groove, and the adjustment push rod and the universal ball head are integrally formed.

[0013] As a preferred solution, the rotary operation module includes a limit mounting block, a locking ring, a threaded sleeve, a self-locking rotary buckle, a guiding mother-daughter sleeve and a sealing assembly. The limit mounting block is fixed in the train driver's cab. The locking ring and the threaded sleeve are connected by threads and locked on the limit mounting block. The self-locking rotary buckle is rotatably arranged in the locking ring and the threaded sleeve. The guiding mother-daughter sleeve penetrates into the threaded sleeve and is linked with the self-locking rotary buckle. The universal flexible shaft is fixedly connected to the guiding mother-daughter sleeve. The operating end of the self-locking rotary buckle penetrates through the locking ring and is provided with an operating hole.

[0014] As a preferred solution, a through hole through which the threaded sleeve can pass is provided on the limit mounting block. At least one inner gasket is provided between the threaded sleeve and the inner side wall of the limit mounting block. At least one outer gasket is provided between the locking ring and the outer side wall of the limit mounting block. A first seal sleeve is provided between the guiding mother and son sleeve and the threaded sleeve. A second seal sleeve is provided between the universal flexible shaft and the lamp housing.

[0015] As a preferred solution, three universal spherical mechanisms are provided on the lamp body. Two adjusting driving devices are provided in the lamp housing. The adjusting driving devices are respectively provided with two rotating operation modules and two universal flexible shafts connecting the two adjusting driving devices. One of the universal spherical mechanisms is fixed in the lamp housing through a mounting bracket and has an A rotating fulcrum that keeps the mounting position unchanged. The other two universal spherical mechanisms are connected to the two adjusting driving devices and have two B rotating fulcrums that can move and adjust positions. The connection lines between the A rotating fulcrum and the two B rotating fulcrums form an original plane; when the two universal spherical mechanisms or any one of the universal spherical mechanisms are driven by the adjusting driving device, the two B rotating fulcrums or any one of the B rotating fulcrums move relative to the initial plane to change positions, and the connection lines between them and the A rotating fulcrum form an adjusting plane, and the adjusting plane is arranged at a certain angle with the original plane.

[0016] As a preferred solution, the lamp body is provided with a reflecting cup structure, which includes a light source surface provided with a light source and a reflecting surface that is inclined relative to the light source surface. Two of the universal spherical mechanisms are connected to the two adjusting driving devices and are arranged on the front outer wall of the lamp body corresponding to the reflecting surface. The other universal spherical mechanism is arranged on the rear outer wall of the lamp body corresponding to the light source surface.

[0017] As a preferred solution, the universal spherical mechanism includes a support seat provided on the outer wall of the lamp body, a spherical movable groove provided at the lower end of the support seat, and a universal ball head rotatably connected in the spherical movable groove.

[0018] As a preferred solution, the driving unit includes a driving motor and a gear transmission assembly connected in the driving housing, and the gear transmission assembly connects the driving motor and the adjusting push rod; the adjusting control device includes an electronic control unit provided in the train driving cab and a control line passing through the lamp housing to connect the electronic control unit and the driving motor.

[0019] The technical solution of the present invention has the following advantages compared with the prior art:

[0020] 1. The convenient dimming system for railway headlights provided by the present invention has multiple universal spherical mechanisms arranged between the lamp body and the lamp compartment. The lamp body can realize multi-directional swing in the lamp compartment through the multiple universal spherical mechanisms. Specifically, multiple adjustment drive devices connected to the universal spherical mechanisms are arranged in the lamp compartment, and an adjustment control device is arranged in the train control room to control the adjustment push rod of the adjustment drive device to make linear reciprocating motion. The adjustment push rod drives the installation position of the universal spherical mechanism to produce a lifting change during the movement. The multiple universal spherical mechanisms have multiple rotation fulcrums for forming the multi-directional swing of the lamp body. Therefore, any universal spherical mechanism can be adjusted. The lifting and lowering changes in the position of the mechanism will cause the lamp body to swing to a certain angle, thereby adjusting the direction of the optical axis of the lamp source. The advantage of adopting this technical solution is that the operator can use the adjustment control device in the train cab to realize displacement adjustment control of the adjustment push rod of the adjustment drive device, and finally achieve the purpose of adjusting the light source illumination direction of the lamp body. This avoids the traditional method of opening the lamp body for adjustment, so there is no need to repeatedly disassemble the lamp body. At the same time, it also avoids external impurities from entering the lamp body and affecting the sealing performance of the headlamp, thereby ensuring the overall performance of the headlamp, effectively improving the on-site adjustment efficiency, and being more conducive to the product's performance and reducing potential fault hazards.

[0021] 2. The present invention provides a convenient dimming system for railway headlights. The adjustment drive device includes a gear transmission assembly and an adjustment push rod, and the adjustment control device includes a rotary operation module and a universal flexible shaft. The universal flexible shaft is connected between the gear transmission assembly and the rotary operation module. The universal flexible shaft drives the gear transmission assembly under the operation of the rotary operation module. The gear transmission assembly converts the torque of the universal flexible shaft into linear motion of the adjustment push rod. The adjustment push rod drives the universal spherical mechanism to achieve a vertical adjustment of the installation position, thereby driving the lamp body to achieve multi-directional swinging within the lamp compartment with multiple universal spherical mechanisms as rotational fulcrums, thereby achieving the function of adjusting the optical axis direction. The rotary operation module is installed in the train control room away from the lamp body and is connected to the gear transmission assembly through the universal flexible shaft to drive and control the displacement of the adjustment push rod. This design facilitates multi-dimensional adjustment of the lamp body's swing angle and optical axis direction, and can be adjusted without opening the lamp body. The adjustment method is simple and quick, allowing the headlamp to achieve optical axis direction adjustment without disassembling the lamp body, which helps to ensure the sealing performance and service life of the lamp body.

[0022] 3. In the portable light adjustment system for railway headlamps provided by the present invention, this universal flexible shaft is a metal shaft with very little rigidity and elastic and freely bendable transmission, which can be used to connect two shafts not in the same direction or with relative movement to transmit rotational motion and torque. That is, the universal flexible shaft can transmit torque between the rotary operation module and the worm, and can flexibly transmit the rotational motion and torque to the gear transmission assembly of the adjustment driving device. By using the gear and rack transmission method, the rotational motion is converted into the linear motion of the adjustment push rod, and the installation position of the spherical mechanism is changed by moving to realize multi-dimensional control of the swing angle of the lamp body. This structural design simplifies the transmission mechanism, can also buffer impacts, and has high transmission accuracy.

[0023] 4. In the portable light adjustment system for railway headlamps provided by the present invention, the universal flexible shaft penetrates into the access pipe of the driving housing and is matched and connected to the linkage hole of the coupling shaft, so as to realize the linkage cooperation between the universal flexible shaft and the worm. The outer side of the universal flexible shaft is sleeved with a protective sleeve, and the protective sleeve is penetrated into the access pipe and clamped in the limit card slot of the access pipe through a limit collar, so as to realize the limit installation between the protective sleeve and the access pipe, and avoid the protective sleeve and the universal flexible shaft from slipping out of the access pipe of the driving housing. The installation structure is simple and the installation is convenient and fast.

[0024] 5. In the portable light adjustment system for railway headlamps provided by the present invention, the rotary operation module is composed of a limit mounting block, a locking ring, a threaded sleeve, a self-locking rotary buckle, and a guiding parent-child sleeve. The guiding parent-child sleeve plays a role in positioning and installing the universal flexible shaft to reduce friction and wear. The self-locking rotary buckle is provided with an operation hole. With this structure, the operator directly operates and rotates the self-locking rotary buckle in the train cab. Through the cooperation between the self-locking rotary buckle and the guiding parent-child sleeve, the universal flexible shaft is driven to rotate, and the motion and torque are transmitted between the rotary operation module and the gear transmission assembly by using the universal flexible shaft. Finally, the adjustment of the swing angle of the lamp body is realized through the cooperation between the adjustment driving device and the universal spherical mechanism. The entire adjustment process can achieve the adjustment function of the headlamp optical axis direction without disassembling the lamp hole. Finally, the optical axis direction of the headlamp can be adjusted from a long distance outside the headlamp efficiently and without obstacles. The adjustment operation is simple and convenient, and the work efficiency is high.

[0025] 6. The portable light adjustment system for railway headlamps provided by the present invention adopts a more applicable adjustment method, which is different from the traditional optical axis adjustment method, and can achieve the effect of adjusting the optical axis without disassembling the lamp body and from a long distance outside. It provides a pioneering idea for the structural design of the headlamp. Finally, the optical axis direction of the headlamp can be adjusted from a long distance outside the headlamp efficiently and without obstacles, so as to be applicable to the lighting adjustment of railway headlamps in various special scenarios, effectively improve the on-site adjustment efficiency, reduce potential faults, and improve the use performance of the product. Brief Description of the Drawings

[0026] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art.

[0027] Figure 1 It is a schematic structural diagram of the portable dimming system for railway headlamps of the present invention;

[0028] Figure 2 It is a side view of the portable dimming system for railway headlamps of the present invention;

[0029] Figure 3 It is a schematic connection structure diagram of the adjustment control device, the adjustment drive device and the lamp body of the present invention;

[0030] Figure 4 It is a schematic structural diagram of the adjustment drive device and the lamp body of the present invention;

[0031] Figure 5 For Figure 4 The front view of the shown adjustment drive device and the lamp body;

[0032] Figure 6 For Figure 4 The sectional structural diagram along the line A-A in;

[0033] Figure 7 It is a schematic structural diagram of the adjustment drive device of the present invention;

[0034] Figure 8 It is a schematic structural diagram of the adjustment control device of the present invention.

[0035] Explanation of reference numerals: 1. Lamp body; 11. Light source; 12. Light source surface; 13. Reflective surface; 2. Lamp chamber; 3. Universal spherical mechanism; 31. Universal ball head; 32. Support seat; 4. Adjustment drive device; 41. Adjustment push rod; 42. Drive housing; 43. Access pipe; 44. Limit card slot; 45. Guide groove; 5. Gear transmission assembly; 51. Worm; 52. Transmission gear; 53. Rack structure; 54. Coupling shaft; 6. Rotary operation module; 61. Limit mounting block; 62. Locking ring; 63. Threaded sleeve; 64. Self-locking rotary buckle; 65. Guide mother and son sleeve; 7. Universal flexible shaft; 71. Protective sleeve; 72. Limit card sleeve; 81. Sealing gasket; 82. First sealing sleeve; 83. Second sealing sleeve. Specific embodiments

[0036] The following will clearly and completely describe the technical solutions of the present invention with reference to the drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0037] In the description of the present invention, it should be noted that the terms “first”, “second” and “third” are only used for descriptive purposes and should not be understood as indicating or implying relative importance.

[0038] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0039] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0040] Example

[0041] The present embodiment will be described in detail below with reference to the accompanying drawings:

[0042] This embodiment provides Figure 1-8 The portable dimming system for railway headlights shown includes: a lamp body 1, a universal spherical mechanism 3, an adjustment drive device 4 and an adjustment control device, wherein;

[0043] The lamp body 1 is disposed in a lamp housing 2, and a light source 11 is provided on the lamp body 1. A plurality of universal spherical mechanisms 3 are provided between the lamp body 1 and the lamp housing 2. The lamp body 1 is swung in multiple directions in the lamp housing 2 through the plurality of universal spherical mechanisms 3 to adjust the optical axis direction of the light source 11.

[0044] The adjustment drive device 4 is provided with multiple adjustment push rods 41 in the lamp housing 2 and connected to the universal spherical mechanism 3. The adjustment drive device 4 includes an adjustment push rod 41 that performs linear reciprocating motion. The adjustment push rod 41 is linked with the universal ball head 31 of the universal spherical mechanism 3 and drives the universal spherical mechanism 3 to move its own position during movement. That is, the universal spherical mechanism 3 is moved up and down under the drive of the adjustment drive device 4.

[0045] The adjustment control device is installed in the train control room away from the lamp body 1 and is connected to the adjustment drive device 4. The adjustment control device is used to drive the adjustment push rod 41 of the adjustment drive device 4 to move, so that the universal spherical mechanism 3 adjusts the swing angle of the lamp body 1 under the driving action of the adjustment push rod 41.

[0046] In the above-described embodiment, the lamp body 1 can achieve multi-directional swinging in the lamp chamber 2 through a plurality of universal spherical mechanisms 3. Specifically, a plurality of adjustment driving devices 4 connected to the universal spherical mechanisms 3 are provided in the lamp chamber, and an adjustment control device provided in the train cab is used to control the adjustment push rod of the adjustment driving device 4 to perform linear reciprocating motion. During the movement of the adjustment push rod 41, the installation position of the universal spherical mechanism 3 is driven to generate a lifting change. Since the plurality of universal spherical mechanisms 3 form a plurality of rotation fulcrums for the lamp body to achieve multi-directional swinging, the lifting change of the position of any universal spherical mechanism will cause the lamp body to swing by a certain angle, thereby playing a role in adjusting the optical axis direction of the light source. The advantage of adopting this technical solution is that the operator can perform displacement adjustment control on the adjustment push rod of the adjustment driving device 4 through the adjustment control device in the train cab, and finally achieve the purpose of adjusting the light irradiation direction of the lamp body 1. In this way, the traditional method of opening the lamp body for adjustment is avoided, so there is no need to repeatedly disassemble the lamp body, and at the same time, it is also avoided that external impurities enter the lamp body and affect the sealing performance of the headlamp, thereby ensuring the overall performance of the headlamp, effectively improving the on-site adjustment efficiency, and being more beneficial to the use performance of the product and reducing potential faults.

[0047] The following will Figure 1-4 make a detailed description of the specific setting methods of the adjustment driving device and the adjustment control device:

[0048] The adjustment driving device 4 includes a driving housing 42 fixed in the lamp chamber 2 and a driving unit provided in the driving housing 42 and driven by the adjustment control device. The connection between the adjustment control device and the driving unit can be achieved by electrical automatic control or manual mechanical control. The driving unit includes a gear transmission assembly 5 connected to the adjustment push rod 41. The adjustment push rod 41 is movably arranged in the driving housing 42, and one end thereof extends out of the driving housing 42 and is coaxially connected to the universal ball head 31. The gear transmission assembly 5 drives the adjustment push rod 41 to move along the axial direction of the universal ball head 31. The adjustment driving device 4 drives the universal spherical mechanism 3 to perform lifting movement through the adjustment push rod 41. When the position of any universal spherical mechanism 3 changes, it will drive the lamp body 1 to swing in a certain direction to achieve the effect of adjusting the optical axis direction of the headlamp.

[0049] It is further preferred that the gear transmission assembly 5 includes a worm 51 provided in a drive housing 42, a rack structure 53 provided on the adjusting push rod 41 and extending along the movement direction of the adjusting push rod 41, and at least one transmission gear 52 rotatably connected between the worm 51 and the gear structure, the drive housing 42 is provided with an access hole, the worm 51 has a coupling shaft 54 extending in the access hole, a guide groove 45 extending along the movement direction of the adjusting push rod 41 is provided in the drive housing 42, the adjusting push rod 41 has a guide block connected to the guide groove 45, the adjusting push rod 41 and the universal ball head 31 are integrally formed, and the movement of the adjusting rod is guided by the cooperation of the guide block and the guide groove 45 to avoid position displacement of the adjusting push rod 41 during movement; wherein, the adjustment control device and the adjustment drive device are preferably adjusted manually, specifically, the adjustment control device includes a rotary operation module 6 provided in the train control room, and a universal flexible shaft 7 connecting the rotary operation module 6 and the adjustment drive device 4 through the lamp compartment 2, the universal flexible shaft 7 One end of the flexible shaft 7 extends to be connected with the rotary operation module 6, and the other end thereof extends to pass through the access hole and is linked to the worm 51. This structural arrangement enables the universal flexible shaft 7 to drive the worm 51 to rotate under the operation of the rotary operation module 6, and the transmission cooperation between the worm 51, the transmission gear 52 and the rack structure 53 converts the torque transmission of the universal flexible shaft 7 into the linear motion of the adjusting push rod 41, and the adjusting push rod 41 drives the universal spherical mechanism 3 to realize the lifting and lowering change of the installation position, thereby driving the lamp body 1 to move in the lamp chamber with multiple universal spherical mechanisms. Structure 3 is a rotating fulcrum to achieve multi-directional swing, so as to adjust the direction of the optical axis. This rotating operation module 6 is installed in the train control room away from the lamp body 1 and realizes transmission connection with the gear transmission component 5 through the universal flexible shaft 7, thereby driving the displacement movement of the adjustment push rod 41. This design is conducive to multi-dimensional adjustment of the swing angle and optical axis direction of the lamp body 1, and can be adjusted without opening the lamp body. The adjustment method is simple and fast, so that the headlamp can achieve the effect of optical axis direction adjustment without disassembling the lamp body, which is conducive to ensuring the sealing performance and service life of the lamp body 1.

[0050] As a specific structural setting, the specific structure of the lamp body 1 and the universal spherical mechanism 3 is described in detail below: Figure 1-3As shown in the figure, three universal spherical mechanisms 3 are provided on the lamp body 1, and two adjusting drive devices 4 are provided in the lamp chamber 2. One of the universal spherical mechanisms 3 is fixed in the lamp chamber 2 through a mounting bracket and has an A rotation fulcrum that keeps the mounting position unchanged. The other two universal spherical mechanisms 3 are connected to the two adjusting drive devices 4 and have two B rotation fulcrums that can be adjusted in position. The connection line between the A rotation fulcrum and the two B rotation fulcrums forms an original plane. When the two universal spherical mechanisms 3 or any one of the universal spherical mechanisms 3 is driven by the adjusting drive device 4, the two B rotation fulcrums or any one B rotation fulcrum move relative to the initial plane to change the position, and the connection line between them and the A rotation fulcrum forms an adjustment plane. The adjustment plane is set at a certain angle to the original plane. This structural setting enables the lamp body 1 to have three rotation fulcrums that can rotate and change the position angle. The connection line between the three rotation fulcrums is determined as an original plane. Among them, the function of the adjusting drive device 4 is to drive the universal spherical mechanism 3 to move to change the initial position of the B rotation fulcrum, thereby controlling the swing angle of the lamp body 1. That is, when moving the two B rotation fulcrums or any one B rotation fulcrum (moving outside the original plane), a new adjustment plane is generated by the connection line between the three rotation fulcrums. The angle between the adjustment plane and the original plane is the optical axis adjustment angle of the lamp body 1. With the cooperation of three universal spherical mechanisms 3 and two adjusting drive devices 4, the lamp body in this embodiment can achieve the purpose of adjusting the optical axis angle in multiple dimensions.

[0051] As Figure 4 shown, the universal spherical mechanism 3 includes a support seat 32 provided on the outer wall of the lamp body 1, a spherical movable groove provided at the lower end of the support seat 32, and a universal ball head 31 rotatably connected in the spherical movable groove. The position where the universal ball head 31 is movably connected to the support seat 32 is the rotation fulcrum that supports the swing of the lamp body 1. When the universal spherical mechanism 3 is installed in the lamp chamber in cooperation with the adjusting drive device 4, the universal ball head of the universal spherical mechanism 3 is connected to the adjusting push rod 41. And when the universal spherical mechanism 3 is installed in the lamp chamber through the mounting bracket, the universal ball head of the universal spherical mechanism 3 is connected to the mounting bracket. Further preferably, the lamp body 1 is provided with a reflector cup structure, which includes a light source surface 12 provided with a light source 11 and a reflecting surface 13 inclined relative to the light source surface 12. Among them, two universal spherical mechanisms 3 are connected to the two adjusting drive devices 4 and are provided on the front outer wall of the lamp body 1 corresponding to the reflecting surface 13, and the other universal spherical mechanism 3 is provided on the rear outer wall of the lamp body 1 corresponding to the light source surface 12. Thus, it can be seen that through the above structure, the three universal spherical mechanisms 3 designed in this way are distributed in a triangular shape on the outer wall of the lamp body, which not only plays a role in installing and supporting the lamp body 1, but also meets the adjustment requirements of the lamp body for different swing angles, so as to reliably realize the multi-directional adjustment of the optical axis of the headlamp in the front, back, left and right directions.

[0052] In this embodiment, this universal flexible shaft 7 is a metal shaft with very little rigidity and elastic and freely bendable transmission. It can be used to connect two shafts that are not in the same direction or have relative movement to transmit rotational motion and torque. That is, the universal flexible shaft 7 can transmit torque between the rotary operation module 6 and the worm 51, and can flexibly transmit the rotational motion and torque to the gear transmission assembly 5 of the adjustment driving device 4. By using the gear and rack transmission method, the rotational motion is converted into the linear motion of the adjustment push rod 41, and the installation position of the spherical mechanism is changed by moving to achieve multi-dimensional control of the swing angle of the lamp body 1. This structural design simplifies the transmission machinery, can also buffer the impact, and has high transmission accuracy. To reliably achieve the linkage cooperation between the universal flexible shaft 7 and the worm 51, the coupling shaft 54 is provided with a linkage hole that is matched and connected to the universal flexible shaft 7. The linkage hole is a square hole, and one end of the universal flexible shaft 7 is a square shaft that is matched with the square hole. Refer to Figure 3 And Figure 4 , a protective sleeve 71 is sleeved outside the universal flexible shaft 7. The drive housing 42 is composed of two half-housings. The two half-housings are joined together to form an access pipe 43 with an access hole. The access pipe 43 is formed with a limit card slot 44. The protective sleeve 71 passes through the access pipe 43 and is provided with a limit card sleeve 72 that is clamped in the limit card slot 44. With this structural setting, the universal flexible shaft 7 passes through the access pipe 43 and is matched and connected to the linkage hole of the coupling shaft 54, so as to achieve the linkage cooperation between the universal flexible shaft 7 and the worm 51. And the limit card sleeve 72 is clamped in the limit card slot 44 of the access pipe 43, so that the limit installation between the protective sleeve 71 and the access pipe 43 is realized, and the protective sleeve 71 and the universal flexible shaft 7 are prevented from slipping out of the access pipe 43 of the drive housing 42. The installation structure is simple and the installation is convenient and fast.

[0053] The following will Figure 1-3 And Figure 8 make a detailed description of the specific setting method of the rotary operation module:

[0054] The corresponding adjusting drive device 4 is provided with two rotary operation modules 6 and two universal flexible shafts 7 that connect the two adjusting drive devices 4, so that the two adjusting drive devices 4 can be respectively controlled to achieve precise adjustment. Among them, the rotary operation module 6 includes a limit mounting block 61, a locking ring 62, a threaded sleeve 63, a self-locking rotary buckle 64, and a guiding mother and son sleeve 65. The limit mounting block 61 is fixed in the train cab. The locking ring 62 and the threaded sleeve 63 are connected and locked on the limit mounting block 61 through threads. The self-locking rotary buckle 64 is rotatably arranged in the locking ring 62 and the threaded sleeve 63. The guiding mother and son sleeve 65 penetrates into the threaded sleeve 63 and is linked with the self-locking rotary buckle 64. The universal flexible shaft 7 is fixedly connected to the guiding mother and son sleeve 65. The operating end of the self-locking rotary buckle 64 penetrates through the locking ring 62 and is provided with an operating hole, which is convenient for the operator to cooperate with the operating hole by means of a tool to drive the self-locking rotary buckle 64 to rotate. The guiding mother and son sleeve 65 plays a role in positioning and installing the universal flexible shaft 7 to reduce friction and wear. Among them, this rotary operation module 6 is installed as a whole on the operating platform in the train cab. One end of the universal flexible shaft 7 is connected to the guiding mother and son sleeve 65, and the other end extends through the access hole and is connected to the worm 51. In this way, different-direction and long-distance transmission of motion and torque can be achieved between the rotary operation module 6 and the gear transmission assembly 5 through the universal flexible shaft 7. With this structure, the operator directly operates and rotates the self-locking rotary buckle 64 in the train cab. Through the cooperation of the self-locking rotary buckle 64 and the guiding mother and son sleeve 65, the universal flexible shaft 7 is driven to rotate, and the motion and torque are transmitted between the rotary operation module 6 and the gear transmission assembly 5 by using the universal flexible shaft 7, thereby driving the adjusting push rod 41 to perform a linear motion. Finally, through the cooperation of the adjusting push rod 41 and the universal spherical mechanism 3, the swinging angle of the lamp body 1 is adjusted. The entire adjustment process can achieve the adjustment function of the headlight optical axis direction without disassembling the lamp hole. Finally, the optical axis direction of the headlight can be adjusted from a long distance outside the headlight efficiently and without obstacles. The adjustment operation is simple and convenient, and the work efficiency is high.

[0055] To ensure the installation sealing performance of the rotation operation module, through holes for the threaded sleeve 63 to pass through are provided on the limit mounting block 61. At least one inner gasket 81 is provided between the threaded sleeve 63 and the inner side wall of the limit mounting block 61, and at least one outer gasket 81 is provided between the locking ring 62 and the outer side wall of the limit mounting block 61. The inner gasket 81 and the outer gasket 81 ensure the connection sealing performance of the limit mounting block 61 at both ends of the through hole. In addition, a first seal sleeve 82 is provided between the guiding male-female sleeve 65 and the threaded sleeve 63, and a second seal sleeve 83 is provided between the universal flexible shaft 7 and the lamp housing 2. The first seal sleeve 82 realizes the connection sealing performance between the guiding male-female sleeve 65 and the threaded sleeve 63, and the second seal sleeve 83 realizes the connection sealing performance between the universal flexible shaft 7 and the lamp housing 2, which is beneficial to ensuring the overall sealing performance of the lamp body 1.

[0056] In summary, the portable light axis adjustment system for railway headlamps provided in this embodiment adopts a more applicable adjustment method, which is different from the traditional light axis adjustment method, achieving the effect of adjusting the light axis direction remotely from the outside without disassembling the lamp body, providing a pioneering idea for the structural design of the headlamp. Finally, it can efficiently and unobstructedly adjust the light axis direction of the headlamp remotely from the outside, so as to be applicable to the lighting adjustment of railway headlamps in various special scenarios, effectively improving the on-site adjustment efficiency, reducing potential faults, and enhancing the service performance of the product.

[0057] In this embodiment, although the above-mentioned adjustment driving device and adjustment control device preferably adopt the remote manual adjustment method of the rotary operation module 6, the universal flexible shaft 7 and the gear transmission assembly 5, as an alternative method, a remote electric adjustment method can also be adopted. The specific setting method is as follows: The driving unit includes a driving motor and a gear transmission assembly 5 (the driving motor is not shown in the drawing) connected and arranged in the driving housing 42. The gear transmission assembly 5 connects the driving motor and the adjustment push rod 41. The gear transmission assembly 5 is composed of a worm 51, a transmission gear 52 and a rack structure 53 connected in sequence. The rack structure 53 is arranged on the adjustment push rod 41, and the worm 51 is in linkage cooperation with the rotating shaft of the motor; the adjustment control device includes an electronic control unit arranged in the train cab, and a control line passing through the lamp chamber 2 to connect the electronic control unit and the driving motor. With this structural setting, the staff can directly operate the electronic control unit in the train cab to control the start, stop and rotation speed of the driving motor. Thus, the driving motor and the gear transmission assembly cooperate to drive the adjustment push rod 41 to perform a linear reciprocating motion, that is, the torque of the motor is converted into the linear motion of the adjustment push rod 41 through the gear transmission assembly 5, and the adjustment push rod 41 drives the universal spherical mechanism 3 to realize the lifting change of the installation position, so as to drive the lamp body to swing in multiple directions with multiple universal spherical mechanisms as the rotation fulcrums. Such a design can also achieve the function of adjusting the headlight optical axis direction. The headlight in this embodiment is the headlight of a railway train. Those skilled in the art can make a choice according to the above specific structures of the adjustment driving device 4 and the adjustment control device, and other equivalent embodiments will not be elaborated one by one here.

[0058] Obviously, the above embodiments are merely examples given for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or variations can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or variations derived therefrom are still within the protection scope of the present invention.

Claims

1. A portable dimming system for railway headlamps, characterized in that, Including: A lamp body (1) is arranged in a lamp chamber (2), and a light source (11) is provided thereon; a plurality of universal spherical mechanisms (3) are arranged between the lamp body (1) and the lamp chamber (2), and the lamp body (1) realizes multi-directional swinging in the lamp chamber (2) through the plurality of universal spherical mechanisms (3) to adjust the optical axis direction of the light source (11). An adjustment driving device (4) is arranged in the lamp chamber (2) in plurality and is connected to the universal spherical mechanism (3). The adjustment driving device (4) includes an adjustment push rod (41) that makes a linear reciprocating motion. The adjustment push rod (41) is linked with the universal ball head (31) of the universal spherical mechanism (3), and drives the universal spherical mechanism (3) to move its own position during movement. An adjustment control device is installed away from the lamp body (1) in the train driving cab and is connected to the adjustment driving device (4). The adjustment control device is used to drive the adjustment push rod (41) of the adjustment driving device (4) to move, so that the universal spherical mechanism (3) adjusts the swinging angle of the lamp body (1) under the driving action of the adjustment push rod (41).

2. The portable dimming system for railway headlights according to claim 1, wherein: The adjustment driving device (4) includes a driving housing (42) fixed in the lamp chamber (2), and a driving unit arranged in the driving housing (42) and driven by the adjustment control device. The driving unit includes a gear transmission assembly (5) connected to the adjustment push rod (41). The adjustment push rod (41) is movably arranged in the driving housing (42), and one end thereof extends out of the driving housing (42) and is coaxially connected to the universal ball head (31). The gear transmission assembly (5) drives the adjustment push rod (41) to move along the axial direction of the universal ball head (31).

3. The portable dimming system for railway headlights according to claim 2, characterized in that: The gear transmission assembly (5) includes a worm (51) arranged in the driving housing (42), a rack structure (53) extending along the movement direction of the adjustment push rod (41) on the adjustment push rod (41), and at least one transmission gear (52) rotatably connected between the worm (51) and the gear structure. An access hole is provided on the driving housing (42), and the worm (51) has a coupling shaft (54) extending into the access hole. The adjustment control device includes a rotary operation module (6) arranged in the train driving cab, and a universal flexible shaft (7) passing through the lamp chamber (2) and connecting the rotary operation module (6) and the adjustment driving device (4). One end of the universal flexible shaft (7) extends and is connected to the rotary operation module (6), and the other end thereof extends through the access hole and is linked with the worm (51).

4. The portable dimming system for railway headlamps according to claim 3, characterized in that: The coupling shaft (54) is provided with a linkage hole matching and connected to the universal flexible shaft (7). A protective sleeve (71) is sleeved outside the universal flexible shaft (7). The driving housing (42) is composed of two half-housings, and the two half-housings are joined together to form an access pipe (43) with an access hole. The access pipe (43) is formed with a limit card slot (44), and the protective sleeve (71) penetrates into the access pipe (43) and is provided with a limit card sleeve (72) clamped in the limit card slot (44).

5. The portable dimming system for railway headlights according to claim 3, characterized in that: A guide groove (45) extending along the moving direction of the adjusting push rod (41) is arranged in the driving housing (42). The adjusting push rod (41) has a guide block connected in the guide groove (45). The adjusting push rod (41) and the universal ball head (31) are integrally formed.

6. The portable dimming system for railway headlights according to any one of claims 3-5, characterized in that: The rotary operation module (6) includes a limit mounting block (61), a locking ring (62), a threaded sleeve (63), a self-locking swivel (64), and a guiding mother-daughter sleeve (65). The limit mounting block (61) is fixed in the train cab. The locking ring (62) and the threaded sleeve (63) are connected and locked to the limit mounting block (61) by threads. The self-locking swivel (64) is rotatably arranged in the locking ring (62) and the threaded sleeve (63). The guiding mother-daughter sleeve (65) penetrates into the threaded sleeve (63) and is arranged in linkage with the self-locking swivel (64). The universal flexible shaft (7) is fixedly connected to the guiding mother-daughter sleeve (65). The operating end of the self-locking swivel (64) penetrates through the locking ring (62) and is provided with an operating hole.

7. The portable dimming system for railway headlights according to claim 6, characterized in that: A through hole through which the threaded sleeve (63) can pass is arranged on the limit mounting block (61). Two sealing gaskets (81) located at both ends of the through hole are arranged between the limit mounting block (61) and the threaded sleeve (63) and the locking ring (62) respectively. A first sealing sleeve (82) is arranged between the guiding mother-daughter sleeve (65) and the threaded sleeve (63). A second sealing sleeve (83) is arranged between the universal flexible shaft (7) and the lamp housing (2).

8. The portable dimming system for railway headlights according to any one of claims 1-7, characterized in that: Three universal spherical mechanisms (3) are arranged on the lamp body (1). Two adjusting driving devices (4) are arranged in the lamp housing (2). One of the universal spherical mechanisms (3) is fixed in the lamp housing (2) through a mounting bracket and has an A rotation fulcrum that keeps the mounting position unchanged. The other two universal spherical mechanisms (3) are connected to the two adjusting driving devices (4) and have two B rotation fulcrums with adjustable positions. The connection lines between the A rotation fulcrum and the two B rotation fulcrums form an original plane. When the two universal spherical mechanisms (3) or any one of the universal spherical mechanisms (3) is driven by the adjusting driving device (4), the two B rotation fulcrums or any one of the B rotation fulcrums move relative to the initial plane to change the position, and the connection lines between them and the A rotation fulcrum form an adjusting plane, and the adjusting plane is arranged at a certain angle to the original plane.

9. The portable dimming system for railway headlamps according to claim 8, characterized in that: The lamp body (1) is provided with a reflector cup structure. The reflector cup structure includes a light source surface (12) provided with a light source (11) and a reflecting surface (13) inclined relative to the light source surface (12). Two of the universal spherical mechanisms (3) are connected to the two adjusting driving devices (4) and are arranged on the front outer wall of the lamp body (1) corresponding to the reflecting surface (13). The other universal spherical mechanism (3) is arranged on the rear outer wall of the lamp body (1) corresponding to the light source surface (12). The universal spherical mechanism (3) includes a support seat (32) arranged on the outer wall of the lamp body (1), a spherical movable groove arranged at the lower end of the support seat (32), and a universal ball head (31) rotatably connected in the spherical movable groove.

10. The portable dimming system for railway headlamps according to claim 2, characterized in that: The driving unit includes a driving motor and a gear transmission assembly (5) which are connected and arranged in a driving housing (42), and the gear transmission assembly (5) connects the driving motor and the adjusting push rod (41); the adjusting control device includes an electronic control unit arranged in the train driver's cab and a control line that passes through the lamp chamber and connects the electronic control unit and the driving motor.

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