A tiltable tail push rod lighting mechanism

Abstract

This utility model relates to the field of lighting device technology, and discloses a tiltable rear-end lighting mechanism with a push rod, comprising: a lamp head, a lamp head bracket, a push rod inner tube, a tilt tube, a sleeve, a first gear, a gear and worm gear assembly, a worm wheel connecting rod assembly, and a curved connecting rod assembly. The lamp head rotates by engaging with the shaft holes of the lamp head bracket at both ends of the lamp head shaft; the sleeve is fitted outside the push rod inner tube, the tilt tube is fixed to one end of the push rod inner tube, and the first gear is fixed to the other end of the push rod inner tube; the gear and worm gear assembly meshes with the first gear and the worm wheel connecting rod assembly, and the curved connecting rod assembly connects the worm wheel connecting rod assembly to the bottom of the lamp head. By rotating the tilt tube, the lamp head is driven to rotate around the axis through the push rod inner tube, the first gear, the gear and worm gear assembly, the worm wheel connecting rod assembly, and the curved connecting rod assembly, thus achieving tilt adjustment. This mechanism adopts pure mechanical transmission, has high reliability, adapts to harsh environments, provides stable adjustment, has a compact structure, and is suitable for rear lighting of special vehicles.

Description

Technical Field

[0001] This utility model relates to the field of lighting device technology, and in particular to a tiltable push rod lighting mechanism for the rear of a vehicle. Background Technology

[0002] With the development of vehicle engineering (especially special vehicles, field operation vehicles and military vehicles), the rear push rod lighting mechanism is a key component to ensure the safety of operation and driving at night or in low visibility environments. Its pitch adjustment function is crucial to achieving accurate lighting coverage (such as adapting to the lighting needs of different scenarios such as vehicle loading and unloading, field reconnaissance, tactical maneuvering, etc.).

[0003] Currently, the mainstream tilt-adjustable rear-end push-stalk lighting mechanisms on the market generally adopt an electric tilt adjustment scheme: this scheme uses a motor as a power source, in conjunction with a controller, angle sensor, connecting wiring harness and other complex electronic control systems, to realize automatic or remote adjustment of the lamp head tilt angle, and is widely used in some conventional civilian scenarios (such as urban logistics vehicles) where basic adjustment efficiency is required.

[0004] While existing electric pitch adjustment solutions perform well in terms of ease of adjustment in conventional scenarios, they still suffer from problems such as complex structure, poor reliability in harsh environments, and high cost in terms of structural design, cost control, and applicability to special environments. These issues make it difficult to meet the high reliability requirements of military scenarios (such as battlefield maneuver and field tactical deployment) or harsh field environments. Utility Model Content

[0005] The purpose of this invention is to provide a tiltable rear-end push rod lighting mechanism to solve the problems of poor reliability and high cost of existing rear-end push rod lighting mechanisms in special environments.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A tiltable rear-end push-stalk lighting mechanism includes:

[0008] Lamp head, lamp head bracket, push rod inner tube, pitch tube, sleeve, first gear, gear and worm gear assembly, worm gear connecting rod assembly and crank connecting rod assembly;

[0009] The lamp head is provided with lamp head shafts at both ends, and the lamp head bracket is provided with shaft holes accordingly. The lamp head shafts are inserted into the shaft holes so that the lamp head can rotate around the lamp head shafts.

[0010] The sleeve is fitted over the outside of the inner cavity tube of the push rod, and the pitch tube is fixedly connected to one end of the inner cavity tube of the push rod; the first gear is fixedly connected to the other end of the inner cavity tube of the push rod by bolts.

[0011] One end of the gear and worm assembly meshes with the first gear, and the other end meshes with the worm wheel connecting rod assembly, for transmitting the rotational power of the push rod inner cavity tube;

[0012] One end of the crank connecting rod assembly is hinged to the worm gear connecting rod assembly, and the other end is hinged to the bottom of the lamp head. By rotating the pitch tube, the inner cavity of the push rod is driven to rotate synchronously. The inner cavity of the push rod drives the first gear to rotate. The first gear drives the gear and worm gear assembly to operate. The gear and worm gear assembly drives the worm gear connecting rod assembly to rotate. The worm gear connecting rod assembly drives the crank connecting rod assembly to drive the lamp head to rotate around the lamp head axis to achieve pitch adjustment.

[0013] Furthermore, it also includes a fixing seat; the fixing seat is sleeved on the outside of the sleeve and is used to fix and install the tiltable rear push rod lighting mechanism.

[0014] Furthermore, the gear and worm assembly includes a second gear, a worm, a gear and worm seat, and a gear and worm shaft; wherein,

[0015] The gear and worm gear seat is fixedly connected to the lamp holder bracket by bolts, and the gear and worm gear shaft passes through and is rotatably installed in the gear and worm gear seat;

[0016] The second gear is sleeved and fixed to one end of the gear worm shaft, and the second gear meshes with the first gear;

[0017] The worm is sleeved and fixed to the other end of the gear worm shaft, and the worm meshes with the worm wheel connecting rod assembly.

[0018] Furthermore, the worm gear connecting rod assembly includes a worm gear, a worm gear connecting rod seat, a worm gear connecting rod shaft, and a needle roller bearing; wherein,

[0019] The worm gear connecting rod seat is fixedly connected to the lamp holder bracket by bolts, and the worm gear connecting rod seat and the gear worm seat are arranged adjacent to each other;

[0020] One end of the worm gear connecting rod shaft is fitted with a worm gear and fixedly connected to the worm gear, and the needle roller bearing is sleeved on the other end of the worm gear connecting rod shaft, and the other end of the worm gear connecting rod shaft is connected to the crank connecting rod assembly;

[0021] The needle roller bearing is fixedly mounted to the worm gear connecting rod seat, providing rotational support for the worm gear connecting rod shaft; the worm gear connecting rod shaft can rotate around the needle roller bearing.

[0022] The worm gear meshes with the worm and receives the rotational power transmitted by the gear and worm assembly, thereby driving the worm gear connecting rod shaft fixed to the worm gear to rotate synchronously and transmitting it to the crank connecting rod assembly.

[0023] Furthermore, the curved connecting rod assembly includes a short connecting rod, a curved connecting rod, a curved connecting rod lamp holder pin, and a lamp holder connector; wherein,

[0024] One end of the short connecting rod is fixedly connected to one end of the worm gear connecting rod shaft, and the other end is hinged to one end of the curved connecting rod.

[0025] The lamp holder connector is fixed to the bottom of the lamp holder with bolts; the other end of the curved connecting rod is hinged to the lamp holder connector via the curved connecting rod lamp holder pin, and the short connecting rod is driven to rotate through the worm gear connecting rod shaft, which in turn drives the curved connecting rod to move, thus converting the rotational motion of the worm gear connecting rod shaft into the pitching and oscillating motion of the lamp holder around the lamp holder shaft.

[0026] Furthermore, it also includes a limiting block; the limiting block is fixed to the side wall of the lamp head bracket near the lamp head, and is used to limit the maximum pitch angle of the lamp head.

[0027] Furthermore, it also includes a dust cover; the dust cover is installed outside the first gear, the gear worm assembly and the worm wheel connecting rod assembly, and both ends of the dust cover are fixedly connected to the lamp holder bracket by bolts, in order to isolate external sand and dust.

[0028] Furthermore, the lamp head shaft and the lamp head are integrally formed, and the end of the lamp head shaft is provided with an anti-disengagement retaining ring, which is threadedly connected to the lamp head shaft to prevent the lamp head from disengaging from the shaft hole of the lamp head bracket when rotating around the lamp head shaft.

[0029] The beneficial effects achieved by this utility model are:

[0030] The tilt-adjustable rear-end push-rod lighting mechanism of this utility model achieves lamp head tilt adjustment through a mechanical transmission structure, and has significant advantages:

[0031] Firstly, the meshing transmission of the gear and worm gear assembly and the worm wheel connecting rod assembly, combined with the hinged structure of the connecting rod assembly, forms a complete mechanical transmission chain. This avoids the dependence of the electric adjustment mechanism on the electric control system and can effectively resist interference such as sand and vibration in harsh environments such as military and field, significantly improving the reliability of adjustment.

[0032] Secondly, the lamp head rotates around the shaft through the shaft hole, and combined with the self-locking characteristics of the worm gear, it ensures that the lamp head can be stably fixed at any pitch position without the need for additional locking components, which simplifies the structure and improves the stability of adjustment.

[0033] Third, the components are connected by bolts, mounting, and other methods, making assembly convenient and maintenance costs low. They are suitable for the limited installation space at the rear of vehicles and meet the needs of special vehicles for efficient and reliable lighting adjustment. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0035] Figure 2 This is a partial structural diagram of the lighting mechanism of this utility model;

[0036] Figure 3 This is a partial structural diagram of the lighting mechanism of this utility model without a dust cover;

[0037] Figure 4 This is a partial cross-sectional view of the lighting mechanism of this utility model;

[0038] Figure 5 This is a second partial structural diagram of the lighting mechanism of this utility model without a dust cover;

[0039] Among them, 1-lamp head; 2-lamp head bracket; 3-push rod inner cavity tube; 4-tilt tube; 5-first gear; 6-worm; 7-second gear; 8-gear and worm seat; 9-gear and worm shaft; 10-worm wheel connecting rod seat; 11-needle roller bearing; 12-worm wheel connecting rod shaft; 13-worm wheel; 14-short connecting rod; 15-curved connecting rod; 16-curved connecting rod lamp head pin; 17-lamp head connecting seat; 18-limiting block; 19-dust cover; 20-sleeve; 21-fixed seat.

[0040] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent. To better illustrate this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. The same or similar reference numerals correspond to the same or similar components. The terms describing positional relationships in the drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent. Detailed Implementation

[0041] It should be noted that, unless otherwise specified, the embodiments and technical features in the embodiments of this application can be combined with each other, and the detailed descriptions in the specific embodiments should be understood as explanations of the purpose of this application and should not be regarded as undue limitations on this application.

[0042] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the specific technical solutions of this application will be further described in detail below with reference to the accompanying drawings of the embodiments of this application. The following embodiments are used to illustrate this application, but are not intended to limit the scope of this application.

[0043] In the embodiments of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this application, unless otherwise stated, "multiple" means two or more.

[0044] In the embodiments of this application, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a direct connection or an indirect connection through an intermediate medium.

[0045] In embodiments of this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0046] The following is in conjunction with specific appendices Figures 1-5 The technical solution of this embodiment will be described in detail below.

[0047] like Figure 1 As shown, this embodiment proposes a tiltable rear-end push rod lighting mechanism, including a lamp head 1, a lamp head bracket 2, a push rod inner tube 3, a tilting tube 4, a sleeve 20, a first gear 5, a gear and worm gear assembly, a worm gear connecting rod assembly, a connecting rod assembly, a fixing seat 21, a limiting block 18, and a dust cover 19. Among these,

[0048] The lamp head 1 has lamp head shafts at both ends, and the lamp head bracket 2 has corresponding shaft holes. The lamp head shafts pass through the shaft holes, allowing the lamp head 1 to rotate around the lamp head shafts, providing a rotational basis for the pitch adjustment of the lamp head 1.

[0049] The sleeve 20 is fitted onto the outside of the inner tube 3 of the push rod, serving to protect and support the inner tube 3 of the push rod; the pitch tube 4 is fixedly connected to one end of the inner tube 3 of the push rod, serving as a force-bearing component for adjustment operation; the first gear 5 is fixedly connected to the other end of the inner tube 3 of the push rod by bolts, used to transmit the rotational power of the inner tube 3 of the push rod; the fixing seat 21 is fitted onto the outside of the sleeve 20, used to fix the entire lighting mechanism at the rear of the vehicle, ensuring the overall installation stability of the mechanism.

[0050] In this embodiment, as Figure 3 , Figure 4As shown, the gear and worm assembly includes a second gear 7, a worm 6, a gear and worm seat 8, and a gear and worm shaft 9. The gear and worm seat 8 is fixedly connected to the lamp holder 2 by bolts, providing a fixed support for the gear and worm assembly. The gear and worm shaft 9 is inserted into and rotatably mounted within the gear and worm seat 8, allowing free rotation around the seat. The second gear 7 is sleeved and fixed to one end of the gear and worm shaft 9, and meshes with the first gear 5, receiving power transmitted by the first gear 5. The worm 6 is sleeved and fixed to the other end of the gear and worm shaft 9, and meshes with the worm wheel connecting rod assembly, transmitting the rotational power of the gear and worm shaft 9 to the worm wheel connecting rod assembly.

[0051] In this embodiment, as Figure 2 , Figure 5 As shown, the worm gear connecting rod assembly includes a worm gear 13, a worm gear connecting rod seat 10, a worm gear connecting rod shaft 12, and a needle roller bearing 11. The worm gear connecting rod seat 10 is fixedly connected to the lamp holder 2 by bolts, and is adjacent to the gear and worm seat 8 for precise meshing with the worm 6. One end of the worm gear connecting rod shaft 12 passes through the worm gear 13 and is fixedly connected to it, allowing the worm gear 13 to rotate synchronously with the worm gear connecting rod shaft 12. The needle roller bearing 11 is sleeved on the other end of the worm gear connecting rod shaft 12, and is embedded and fixedly installed in the worm gear connecting rod seat 10, providing stable rotational support for the worm gear connecting rod shaft 12 and ensuring smooth rotation of the worm gear connecting rod shaft 12 around the needle roller bearing 11. The worm gear 13 meshes with the worm 6, receiving the rotational power transmitted by the gear and worm assembly and driving the worm gear connecting rod shaft 12 to rotate synchronously.

[0052] In this embodiment, as Figure 1 , Figure 5 As shown, the curved connecting rod assembly includes a short connecting rod 14, a curved connecting rod 15, a curved connecting rod lamp holder pin 16, and a lamp holder connecting seat 17. One end of the short connecting rod 14 is fixedly connected to one end of the worm gear connecting rod shaft 12 and rotates synchronously with the worm gear connecting rod shaft 12. The other end of the short connecting rod 14 is hinged to one end of the curved connecting rod 15, which can drive the curved connecting rod 15 to swing. The lamp holder connecting seat 17 is fixed to the bottom of the lamp holder 1 by bolts, providing an interface for the connection between the curved connecting rod assembly and the lamp holder 1. The other end of the curved connecting rod 15 is hinged to the lamp holder connecting seat 17 through the curved connecting rod lamp holder pin 16, which can convert the swing of the curved connecting rod 15 into the pitch swing of the lamp holder 1 around the lamp holder axis.

[0053] exist Figure 2 and Figure 5 In this embodiment, the tiltable rear push rod lighting mechanism is also provided with a limiting block 18. The limiting block 18 is fixed to the side wall of the lamp head bracket 2 near the lamp head 1 and is located on the tilt swing trajectory of the lamp head 1. It is used to limit the maximum tilt angle of the lamp head 1, avoid excessive rotation of the lamp head 1 which could damage the connecting rod assembly or the lamp head 1 itself, and ensure the safety of the mechanism adjustment.

[0054] In this embodiment, refer to Figure 1 and Figure 2 As shown, the tilting rear push rod lighting mechanism is also equipped with a dust cover 19. The dust cover 19 covers the outside of the first gear 5, the gear worm assembly and the worm wheel connecting rod assembly, and the two ends of the dust cover 19 are fixedly connected to the lamp head bracket 2 by bolts. It can isolate external sand, rain and other impurities, and prevent impurities from entering the transmission components and affecting the smoothness of adjustment and the service life of the mechanism.

[0055] In other embodiments, to improve the structural strength and stability of the lamp head shaft, the lamp head shaft at both ends of the lamp head 1 is integrally formed with the lamp head 1, thereby improving the structural strength and stability of the lamp head shaft. Simultaneously, an anti-disengagement ring is provided at the end of the lamp head shaft, which is threadedly connected to the lamp head shaft. This effectively prevents the lamp head 1 from dislodging from the shaft hole of the lamp head bracket 2 when rotating around the lamp head shaft, ensuring the structural reliability of the lamp head 1 during pitch adjustment.

[0056] Based on the above embodiments, the tilt-adjustable rear-end push-rod lighting mechanism of this utility model achieves the tilt adjustment of the lamp head 1 through pure mechanical transmission. The specific working process is as follows:

[0057] Power input: The operator rotates the pitch tube 4. Since the pitch tube 4 is fixedly connected to the inner cavity tube 3 of the push rod, the rotation of the pitch tube 4 will directly drive the inner cavity tube 3 of the push rod to rotate synchronously.

[0058] Power is transmitted to the gear and worm assembly: When the inner tube 3 of the push rod rotates, the first gear 5 fixed at the other end of the push rod rotates synchronously with the inner tube 3 of the push rod; the first gear 5 meshes with the second gear 7, thereby driving the second gear 7 to rotate; the second gear 7 is fixed at one end of the gear and worm shaft 9, driving the gear and worm shaft 9 to rotate around the gear and worm seat 8; the worm 6 fixed at the other end of the gear and worm shaft 9 rotates synchronously with the gear and worm shaft 9, completing the transmission of power from the inner tube 3 of the push rod to the worm 6;

[0059] Power is transmitted to the worm gear connecting rod assembly: the worm 6 meshes with the worm gear 13, and the rotation of the worm 6 drives the worm gear 13 to rotate; the worm gear 13 is fixedly connected to the worm gear connecting rod shaft 12, which drives the worm gear connecting rod shaft 12 to rotate around the needle roller bearing 11 (embedded in the worm gear connecting rod seat 10), and the power is further transmitted to the worm gear connecting rod shaft 12.

[0060] Power is transmitted to the connecting rod assembly to achieve pitch adjustment: When the worm gear connecting rod shaft 12 rotates, the short connecting rod 14 fixed at one end rotates synchronously with the worm gear connecting rod shaft 12; the short connecting rod 14 is hinged to the connecting rod 15, causing the connecting rod 15 to swing; the connecting rod 15 is hinged to the lamp head connecting seat 17 (fixed to the bottom of the lamp head 1) through the connecting rod lamp head pin 16, and the swing of the connecting rod 15 will push the lamp head 1 to rotate around the lamp head shaft (passing through the shaft hole of the lamp head bracket 2), ultimately realizing the pitch angle adjustment of the lamp head 1.

[0061] During the adjustment process, the meshing of the worm gear 13 and the worm 6 has a self-locking characteristic, which can ensure that the lamp head 1 can be stably fixed at any pitch position without the need for additional locking components. This simplifies the structure and improves the stability of the adjustment. In addition, the various transmission components are connected by bolt fixing, embedding and other methods, which makes assembly convenient and maintenance costs low. This adapts to the limited installation space at the rear of the vehicle and meets the needs of special vehicles for efficient and reliable lighting adjustment.

[0062] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments. The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made based on the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A tiltable rear-end push rod lighting mechanism, characterized in that, include: Lamp head (1), lamp head bracket (2), push rod inner tube (3), pitch tube (4), sleeve (20), first gear (5), gear and worm gear assembly, worm wheel connecting rod assembly and crank connecting rod assembly; The lamp head (1) is provided with lamp head shafts at both ends, and the lamp head bracket (2) is provided with shaft holes. The lamp head shafts are inserted into the shaft holes so that the lamp head (1) can rotate around the lamp head shafts. The sleeve (20) is fitted onto the outside of the inner cavity tube (3) of the push rod, and the pitch tube (4) is fixedly connected to one end of the inner cavity tube (3) of the push rod; the first gear (5) is fixedly connected to the other end of the inner cavity tube (3) of the push rod by bolts; One end of the gear and worm assembly meshes with the first gear (5), and the other end meshes with the worm wheel connecting rod assembly, which is used to transmit the rotational power of the push rod inner cavity tube (3); One end of the crank connecting rod assembly is hinged to the worm gear connecting rod assembly, and the other end is hinged to the bottom of the lamp head (1). By rotating the pitch tube (4), the inner cavity tube (3) of the push rod is driven to rotate synchronously. The inner cavity tube (3) of the push rod drives the first gear (5) to rotate. The first gear (5) drives the gear worm assembly to operate. The gear worm assembly drives the worm gear connecting rod assembly to rotate. The worm gear connecting rod assembly drives the crank connecting rod assembly to drive the lamp head (1) to rotate around the lamp head axis to achieve pitch adjustment.

2. The tiltable rear-end push rod lighting mechanism according to claim 1, characterized in that, It also includes a fixing seat (21); the fixing seat (21) is sleeved on the outside of the sleeve (20) and is used to fix the push rod lighting mechanism on the tiltable rear of the vehicle.

3. The tiltable rear-end push rod lighting mechanism according to claim 1, characterized in that, The gear and worm assembly includes a second gear (7), a worm (6), a gear and worm seat (8), and a gear and worm shaft (9); wherein, The gear and worm gear seat (8) is fixedly connected to the lamp head bracket (2) by bolts, and the gear and worm gear shaft (9) is inserted and rotatably installed in the gear and worm gear seat (8); The second gear (7) is sleeved and fixed to one end of the gear worm shaft (9), and the second gear (7) meshes with the first gear (5); The worm (6) is sleeved and fixed to the other end of the gear worm shaft (9), and the worm (6) meshes with the worm wheel connecting rod assembly.

4. The tiltable rear-end push rod lighting mechanism according to claim 3, characterized in that, The worm gear connecting rod assembly includes a worm gear (13), a worm gear connecting rod seat (10), a worm gear connecting rod shaft (12), and a needle roller bearing (11); wherein, The worm gear connecting rod seat (10) is fixedly connected to the lamp head bracket (2) by bolts, and the worm gear connecting rod seat (10) and the gear worm seat (8) are arranged adjacent to each other; One end of the worm gear connecting rod shaft (12) is threaded through the worm gear (13) and fixedly connected to the worm gear (13). The needle roller bearing (11) is sleeved on the other end of the worm gear connecting rod shaft (12), and the other end of the worm gear connecting rod shaft (12) is connected to the crank connecting rod assembly. The needle roller bearing (11) is fitted and fixed to the worm gear connecting rod seat (10) to provide rotational support for the worm gear connecting rod shaft (12); the worm gear connecting rod shaft (12) can rotate around the needle roller bearing (11); The worm wheel (13) meshes with the worm (6) and receives the rotational power transmitted by the gear and worm assembly, thereby driving the worm wheel connecting rod shaft (12) fixed to the worm wheel (13) to rotate synchronously and transmit it to the crank connecting rod assembly.

5. A tiltable rear-end push rod lighting mechanism according to claim 4, characterized in that, The curved connecting rod assembly includes a short connecting rod (14), a curved connecting rod (15), a curved connecting rod lamp holder pin (16), and a lamp holder connector (17); wherein... One end of the short connecting rod (14) is fixedly connected to one end of the worm gear connecting rod shaft (12), and the other end is hinged to one end of the curved connecting rod (15); The lamp head connector (17) is fixed to the bottom of the lamp head (1) by bolts; the other end of the curved connecting rod (15) is hinged to the lamp head connector (17) through the curved connecting rod lamp head pin (16), and drives the short connecting rod (14) to rotate through the worm gear connecting rod shaft (12), which in turn drives the curved connecting rod (15) to move, thus converting the rotational motion of the worm gear connecting rod shaft (12) into the pitch swing of the lamp head (1) around the lamp head shaft.

6. The tiltable rear-end push rod lighting mechanism according to claim 1, characterized in that, It also includes a limiting block (18); the limiting block (18) is fixed to the side wall of the lamp head bracket (2) near the lamp head (1) and is used to limit the maximum pitch angle of the lamp head (1).

7. The tiltable rear-end push rod lighting mechanism according to claim 1, characterized in that, It also includes a dust cover (19); the dust cover (19) is placed outside the first gear (5), the gear worm assembly and the worm wheel connecting rod assembly, and the two ends of the dust cover (19) are fixedly connected to the lamp head bracket (2) by bolts to isolate external sand and dust.

8. The tiltable rear-end push rod lighting mechanism according to claim 1, characterized in that, The lamp head shaft and the lamp head (1) are integrally formed. The end of the lamp head shaft is provided with an anti-disengagement ring, which is threadedly connected to the lamp head shaft to prevent the lamp head (1) from coming out of the shaft hole of the lamp head bracket (2) when rotating around the lamp head shaft.

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