A new distance adjusting structure of vehicle lamp

Abstract

The utility model discloses a new type distance adjusting structure of car light relates to car light light modulation technical field, including the shell subassembly that is composed of bottom shell, convex cylinder, top cover, straight slot mouth guide cylinder column, distance adjusting subassembly, the distance adjusting subassembly includes drive unit, adjusting rod, the drive unit is used for realizing the telescopic movement operation of adjusting rod, the inboard mounting of convex cylinder has locking assembly, and the locking assembly locks the position of adjusting rod, is used for sharing the vibration impact force that adjusting rod received. The utility model discloses through setting locking assembly can lock the position of adjusting rod, fixed, in the subsequent use process, when adjusting rod receives the weight of car light reflector bowl and vibration impact force in the vehicle driving, will pass through arc -shaped clamping block, T type telescopic seat and pass to inner support cylinder, effectively reduce the impact of cross worm wheel tooth ring and thread rod, the impact of the contact surface between worm between, so as to reach the effect of improving the service life of device.

Description

Technical Field

[0001] This utility model relates to the field of vehicle headlight dimming technology, specifically a novel headlight adjustment structure. Background Technology

[0002] The headlight height adjustment mechanism, commonly known as the headlight height control system, has the core function of adjusting the headlight beam height to ensure optimal illumination under different vehicle load conditions, while avoiding glare for drivers of vehicles in front or oncoming traffic. Traditional manual headlight height adjustment uses an actuator, typically installed at the rear of each headlight assembly. This actuator contains a worm gear or rack and pinion mechanism, and its operation is as follows:

[0003] 1. The driver operates a knob with digital gears (usually 0-5) inside the vehicle. The knob controls a miniature motor (electric type) via electrical signals.

[0004] 2. After receiving the command, the motor rotates, driving the worm gear. The worm gear drives the worm wheel that meshes with it, converting the rotational motion of the motor into the linear reciprocating motion of the push rod.

[0005] 3. The push rod is directly pressed against the back of the headlight reflector. Extending or retracting the push rod will push or pull the reflector, causing it to make fine adjustments to the pitch angle around a fulcrum, thereby changing the illumination height of the beam.

[0006] In existing automotive headlight adjustment structures, the weight of the headlight reflector and the vibration and impact forces during vehicle operation continuously act on the worm gear. Due to self-locking, this force is entirely borne by the contact between the tooth surfaces of the worm gear and the worm. However, the worm gears commonly used in automotive headlight adjustment structures are mostly made of engineering plastics. Under prolonged continuous compressive stress, slight creep (a slow plastic deformation of a material under constant stress) will occur, leading to increased clearance and accelerated wear. To reduce this situation, a new type of headlight adjustment structure is proposed. Utility Model Content

[0007] The purpose of this utility model is to provide a novel adjustable beam structure for vehicle lights in order to solve the problems mentioned above.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a novel adjustable height structure for vehicle lights, comprising an outer shell assembly consisting of a bottom shell, a protruding cylinder, a top cover, and a straight groove guide cylinder column. The protruding cylinder is fixed to the bottom of the bottom shell, and the straight groove guide cylinder column is fixed to the top of the top cover. The top cover is closed and fixed to the top of the bottom shell, and the straight groove guide cylinder column and the protruding cylinder are vertically aligned. An adjustable height assembly extending below the protruding cylinder is installed in the inner cavity formed by the bottom shell and the protruding cylinder. The adjustable height assembly includes a drive unit and an adjusting rod. The drive unit is used to realize the telescopic movement of the adjusting rod.

[0009] A locking assembly is installed on the inner side of the protruding cylinder. The locking assembly locks the position of the adjusting rod and is used to distribute the vibration and impact force on the adjusting rod.

[0010] As a further embodiment of this utility model: the drive unit includes a cross-shaped worm gear ring, a worm, a transmission gear, a drive motor, and a drive gear;

[0011] An inner support cylinder is fixed to the inner center of the protruding cylinder. The cross-shaped worm gear ring is rotatably mounted on the outer top of the inner support cylinder and distributed on the inner side of the bottom shell. The transmission gear is fixed to one end of the worm shaft. The transmission gear shaft is rotatably mounted on the inner side of the bottom shell and the transmission gear meshes with the cross-shaped worm gear ring. The drive motor is fixedly mounted in the inner cavity of the bottom shell. The drive gear is fixed to the output shaft of the drive motor and meshes with the transmission gear. The drive motor drives the cross-shaped worm gear ring to rotate.

[0012] The bottom end of the adjusting rod is fixed with a ball head. The top end of the adjusting rod passes through the protruding cylinder, the inner support cylinder, the cross-shaped worm gear ring and the inside of the straight groove guide cylinder column from the bottom of the protruding cylinder. The outer side of the part where the adjusting rod contacts the cross-shaped worm gear ring is formed with a threaded rod. The inner side of the cross-shaped worm gear ring is formed with an internal thread that matches the threaded rod. The extension and retraction of the adjusting rod is achieved by rotating the cross-shaped worm gear ring.

[0013] A straight groove guide rod is formed at the contact position between the adjusting rod and the straight groove guide cylinder column. The straight groove guide rod slides and limits the movement of the adjusting rod.

[0014] As a further embodiment of this utility model: the locking assembly includes a ring seat, a vertical mounting groove, a horizontal sliding groove, an electromagnetic block, a T-shaped telescopic seat, and an arc-shaped locking block;

[0015] The bottom of the inner support cylinder is symmetrically provided with through openings, and the outer side of the position where the adjusting rod contacts the inner support cylinder is formed with several vertically evenly distributed annular grooves.

[0016] The ring seat is sleeved on the outside of the inner support cylinder. The vertical mounting groove is symmetrically opened on both sides of the outer wall of the ring seat. The horizontal sliding groove is symmetrically opened on both sides of the inner wall of the ring seat and is aligned with the through opening. The horizontal sliding groove is perpendicular to and connected to the vertical mounting groove.

[0017] The electromagnetic block is vertically installed inside the vertical mounting groove, the T-shaped telescopic seat is horizontally slidably installed inside the horizontal slide groove, the arc-shaped locking block is fixed inside, the inner side of the T-shaped telescopic seat is in contact with the outer side of the adjusting rod, and the arc-shaped locking block is engaged inside the annular groove to lock the movement of the adjusting rod.

[0018] The electromagnetic block is energized to attract and move the T-shaped telescopic seat, thereby enabling the arc-shaped locking block to unlock the adjusting rod.

[0019] As a further improvement of this utility model: a W-shaped spring is also provided between the T-shaped telescopic seat and the electromagnetic block. Two sets of W-shaped springs are symmetrically arranged vertically. The W-shaped springs are used to provide the T-shaped telescopic seat with a thrust towards the adjusting rod.

[0020] As a further embodiment of this utility model: a limiting pressure ring and an inner cover are fixed to the bottom of the inner wall of the top cover, the bottom end of the limiting pressure ring is fitted with the top end of the cross-shaped worm gear ring, and the inner cover is fitted with the inner side of the bottom cover.

[0021] The bottom of the inner cover and the bottom of the inner wall of the bottom shell are symmetrically provided with bearing bases, and the worm shaft is rotatably connected between the upper and lower bearing bases through bearings.

[0022] As a further embodiment of this utility model: the outer diameter of the adjusting rod matches the inner diameter of the inner support cylinder, the outer diameter of the threaded rod is slightly smaller than the outer diameter of the adjusting rod, multiple arc-shaped blocks are evenly arranged vertically, the outer wall size of the arc-shaped blocks matches the inner wall size of the annular groove, and the distribution spacing of the arc-shaped blocks matches the distribution spacing of the annular groove.

[0023] Compared with the prior art, the beneficial effects of this utility model are:

[0024] The position of the adjusting rod can be locked and fixed by setting a locking component. During subsequent use, when the adjusting rod is subjected to the weight of the headlight reflector and the vibration and impact force during vehicle operation, it will be transmitted to the inner support cylinder through the arc-shaped locking block and T-shaped telescopic seat, which effectively reduces the impact force on the contact surface between the cross worm gear ring and the threaded rod and worm, thereby improving the service life of the device. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of this utility model;

[0026] Figure 2 This is a cross-sectional view of the structure of this utility model;

[0027] Figure 3 This is a cross-sectional exploded view of the present invention;

[0028] Figure 4 This is a cross-sectional exploded view of the locking component of this utility model.

[0029] In the diagram: 1. Outer shell assembly; 101. Bottom shell; 102. Protruding cylinder; 103. Inner support cylinder; 104. Through-hole; 105. Top cover; 106. Straight groove guide cylinder column; 107. Limiting pressure ring; 108. Inner cover; 109. Bearing base; 2. Adjustment assembly; 201. Cross-shaped worm gear ring; 202. Worm; 203. Transmission gear; 204. Drive motor; 205. Drive gear; 206. Adjusting rod; 207. Ball head; 208. Annular groove; 209. Threaded rod; 210. Straight groove guide rod; 3. Locking assembly; 301. Ring seat; 302. Vertical mounting groove; 303. Horizontal sliding groove; 304. Electromagnetic block; 305. T-shaped telescopic seat; 305. Arc-shaped locking block; 307. W-shaped spring. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Please see Figures 1-4 In this embodiment of the present invention, a novel adjustable distance structure for vehicle lights includes an outer shell assembly 1 consisting of a bottom shell 101, a protruding cylinder 102, a top cover 105, and a straight groove guide cylinder 106. The protruding cylinder 102 is fixed to the bottom of the bottom shell 101, and the straight groove guide cylinder 106 is fixed to the top of the top cover 105. The top cover 105 is closed and fixed to the top of the bottom shell 101, and the straight groove guide cylinder 106 and the protruding cylinder 102 are vertically aligned. An adjustable distance assembly 2 extending to the bottom of the protruding cylinder 102 is installed in the inner cavity formed by the bottom shell 101 and the protruding cylinder 102. The adjustable distance assembly 2 includes a drive unit and an adjusting rod 206. The drive unit is used to realize the telescopic movement of the adjusting rod 206.

[0032] A locking assembly 3 is installed on the inner side of the protruding cylinder 102. The locking assembly 3 locks the position of the adjusting rod 206 and is used to distribute the vibration and impact force on the adjusting rod 206.

[0033] The drive unit includes a cross-shaped worm gear ring 201, a worm 202, a transmission gear 203, a drive motor 204, and a drive gear 205;

[0034] An inner support cylinder 103 is fixed to the middle of the inner side of the protruding cylinder 102. A cross-shaped worm gear ring 201 is rotatably mounted on the outer top of the inner support cylinder 103 and distributed on the inner side of the bottom shell 101. A transmission gear 203 is fixed to one end of the shaft of the worm 202. The shaft of the transmission gear 203 is rotatably mounted on the inner side of the bottom shell 101 and the transmission gear 203 meshes with the cross-shaped worm gear ring 201. A drive motor 204 is fixedly mounted in the inner cavity of the bottom shell 101. A drive gear 205 is fixed to the output shaft of the drive motor 204 and meshes with the transmission gear 203. The drive motor 204 drives the cross-shaped worm gear ring 201 to rotate.

[0035] The bottom end of the adjusting rod 206 is fixed with a ball head 207. The top end of the adjusting rod 206 passes through the protruding cylinder 102, the inner support cylinder 103, the cross-shaped worm gear ring 201 and the straight groove guide cylinder column 106 from the bottom of the protruding cylinder 102. The outer side of the part where the adjusting rod 206 contacts the cross-shaped worm gear ring 201 is formed with a threaded rod 209. The inner side of the cross-shaped worm gear ring 201 is formed with an internal thread that matches the threaded rod 209. The adjustment rod 206 can be moved by rotating the cross-shaped worm gear ring 201.

[0036] A straight groove guide rod 210 is formed at the contact position between the adjusting rod 206 and the straight groove guide cylinder 106. The straight groove guide rod 210 slides and limits the straight groove guide cylinder 106 to provide movement guidance for the adjusting rod 206.

[0037] The locking assembly 3 includes a ring seat 301, a vertical mounting groove 302, a horizontal sliding groove 303, an electromagnetic block 304, a T-shaped telescopic seat 305, and an arc-shaped locking block 306.

[0038] The bottom of the inner support cylinder 103 is symmetrically provided with through openings 104, and the outer side of the position where the adjusting rod 206 contacts the inner support cylinder 103 is formed with several vertically evenly distributed annular grooves 208.

[0039] The ring seat 301 is sleeved on the outside of the inner support cylinder 103. The vertical mounting groove 302 is symmetrically opened on both sides of the outer wall of the ring seat 301. The horizontal sliding groove 303 is symmetrically opened on both sides of the inner wall of the ring seat 301 and is aligned with the through opening 104. The horizontal sliding groove 303 is perpendicular to and connected to the vertical mounting groove 302.

[0040] The electromagnetic block 304 is vertically installed inside the vertical mounting groove 302. The T-shaped telescopic seat 305 is horizontally slidably installed inside the horizontal sliding grooves 303 and 104. The arc-shaped locking block 306 is fixed inside 505. The inner side of the T-shaped telescopic seat 305 is in contact with the outer side of the adjusting rod 206. The arc-shaped locking block 306 is engaged inside the annular groove 208 to lock the movement of the adjusting rod 206.

[0041] When the electromagnetic block 304 is energized, it attracts and moves the T-shaped telescopic seat 305, which is used to unlock the adjusting rod 206 by the arc-shaped locking block 306.

[0042] A W-shaped spring 307 is also provided between the T-shaped telescopic seat 305 and the electromagnetic block 304. Two sets of W-shaped springs 307 are symmetrically arranged in the upper and lower parts. The W-shaped springs 307 are used to provide a continuous thrust towards the adjusting rod 206 for the T-shaped telescopic seat 305.

[0043] The outer diameter of the adjusting rod 206 matches the inner diameter of the inner support cylinder 103. The outer diameter of the threaded rod 209 is slightly smaller than the outer diameter of the adjusting rod 206. Multiple arc-shaped locking blocks 306 are evenly arranged vertically. The outer wall size of the arc-shaped locking blocks 306 matches the inner wall size of the annular groove 208, and the distribution spacing of the arc-shaped locking blocks 306 matches the distribution spacing of the annular groove 208.

[0044] In this embodiment, it should be noted that threaded connection parts (not shown in the figure) for screws to be tightened can be formed on the bottom shell 101 and the top cover 105, so as to realize the assembly and fixation of the bottom shell 101 and the top cover 105. The bottom shell 101 has a connecting part (not shown in the figure) for the installation and positioning of the drive motor 204. This structure is a conventional technical structure, therefore, it is not drawn or described in detail here.

[0045] The drive motor 204 and the electromagnetic block 304 are electrically connected to the controller via wires. During adjustment:

[0046] The electromagnetic block 304 is first powered on. The powered battery block 304 generates a magnetic force to attract the T-shaped telescopic seat 305, causing the T-shaped telescopic seat 305 to move closer to the magnetic block 304. The W-shaped spring 307 is further compressed. Finally, the arc-shaped locking block 305 on the T-shaped telescopic seat 305 separates from the annular locking groove 208, thereby releasing the lock on the adjusting rod 206.

[0047] Afterwards, the drive motor 204 is powered on and starts running. The drive motor 204 drives the cross-shaped worm gear ring 201 to rotate through the driving gear 205, the driven gear 203, and the worm gear 202. Under the limiting and guiding action of the threaded structure of the threaded rod 209 and the straight groove guide rod 210, the extension and retraction of the adjusting rod 206 can be realized, thereby meeting the adjustment needs of the headlight (it should be noted that the connection between the bottom shell 101 and the headlight shell adopts the existing technical structure, which will not be described in detail here. The ball head 207 is movably connected to the headlight reflector).

[0048] After adjustment, the power supply to the electromagnetic block 304 is disconnected, and the magnetic force of the electromagnetic block 304 disappears. At this time, the T-shaped telescopic seat 305 is reset under the elastic force of the W-shaped spring piece 307, so that the arc-shaped locking block 305 is locked into the corresponding annular slot 208. At this time, the position of the adjusting rod 206 is fixed.

[0049] Thus, during subsequent use, when the adjusting rod 206 is subjected to the weight of the headlight reflector and the vibration and impact force during vehicle operation, it will be transmitted to the inner support cylinder 103 through the arc-shaped locking block 305 and the T-shaped telescopic seat 305, effectively reducing the impact force on the contact surface between the cross worm gear ring 201 and the threaded rod 209 and worm 202.

[0050] Please refer to this carefully. Figures 2-3 The bottom of the inner wall of the top cover 105 is fixed with a limiting pressure ring 107 and an inner cover 108. The bottom end of the limiting pressure ring 107 is fitted with the top end of the cross-shaped worm gear ring 201, and the inner cover 108 is fitted with the inner side of the bottom cover 101.

[0051] Bearing bases 109 are symmetrically arranged at the bottom of the inner cover 108 and the bottom of the inner wall of the bottom cover 101. The shaft of the worm gear 202 is rotatably connected between the upper and lower bearing bases 109 through the bearing.

[0052] In this embodiment: the forming of the cross-shaped worm gear ring 201 can be limited by the limiting pressure ring 107, and the bearing base 109 provides support and limitation for the installation and rotation of the worm 202.

[0053] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A novel adjustable pitch structure for vehicle lights, comprising an outer shell assembly (1) consisting of a bottom shell (101), a protruding cylinder (102), a top cover (105), and a straight-groove guide cylinder post (106), wherein the protruding cylinder (102) is fixed to the bottom of the bottom shell (101), the straight-groove guide cylinder post (106) is fixed to the top of the top cover (105), the top cover (105) is closed and fixed to the top of the bottom shell (101), and the straight-groove guide cylinder post (106) and the protruding cylinder (102) are vertically aligned, characterized in that, An adjusting assembly (2) extending below the protruding cylinder (102) is installed in the inner cavity formed by the bottom shell (101) and the protruding cylinder (102). The adjusting assembly (2) includes a drive unit and an adjusting rod (206). The drive unit is used to realize the telescopic movement of the adjusting rod (206). A locking assembly (3) is installed on the inner side of the protruding cylinder (102). The locking assembly (3) locks the position of the adjusting rod (206) and is used to distribute the vibration impact force received by the adjusting rod (206).

2. The novel adjustable beam structure for vehicle lights according to claim 1, characterized in that, The drive unit includes a cross-shaped worm gear ring (201), a worm (202), a transmission gear (203), a drive motor (204), and a drive gear (205); An inner support cylinder (103) is fixed in the middle of the inner side of the protruding cylinder (102). The cross-shaped worm gear ring (201) is rotatably installed on the outer top of the inner support cylinder (103) and distributed on the inner side of the bottom shell (101). The transmission gear (203) is fixed to one end of the shaft of the worm (202). The shaft of the transmission gear (203) is rotatably installed on the inner side of the bottom shell (101) and the transmission gear (203) meshes with the cross-shaped worm gear ring (201). The drive motor (204) is fixedly installed in the inner cavity of the bottom shell (101). The drive gear (205) is fixed to the output shaft of the drive motor (204) and meshes with the transmission gear (203). The drive motor (204) drives the cross-shaped worm gear ring (201) to rotate. The bottom end of the adjusting rod (206) is fixed with a ball head (207). The top end of the adjusting rod (206) passes through the bottom of the protruding cylinder (102), the inner support cylinder (103), the cross-shaped worm gear ring (201) and the straight groove guide cylinder column (106) in sequence. The outer side of the part where the adjusting rod (206) contacts the cross-shaped worm gear ring (201) is formed with a threaded rod (209). The inner side of the cross-shaped worm gear ring (201) is formed with an internal thread that matches the threaded rod (209). The adjustment rod (206) can be extended and retracted by rotating the cross-shaped worm gear ring (201). A straight groove guide rod (210) is formed at the contact position between the adjusting rod (206) and the straight groove guide cylinder (106). The straight groove guide rod (210) and the straight groove guide cylinder (106) are limited to slide to provide movement guidance for the adjusting rod (206).

3. The novel adjustable beam structure for vehicle lights according to claim 2, characterized in that, The locking assembly (3) includes a ring seat (301), a vertical mounting groove (302), a horizontal sliding groove (303), an electromagnetic block (304), a T-shaped telescopic seat (305), and an arc-shaped locking block (306). The bottom of the inner support cylinder (103) is symmetrically provided with through openings (104), and the outer side of the position where the adjusting rod (206) contacts the inner support cylinder (103) is formed with several vertically evenly distributed annular grooves (208). The ring seat (301) is sleeved on the outside of the inner support cylinder (103). The vertical mounting groove (302) is symmetrically opened on both sides of the outer wall of the ring seat (301). The horizontal sliding groove (303) is symmetrically opened on both sides of the inner wall of the ring seat (301) and is aligned with the through opening (104). The horizontal sliding groove (303) is perpendicular to and connected to the vertical mounting groove (302). The electromagnetic block (304) is vertically installed inside the vertical mounting groove (302), the T-shaped telescopic seat (305) is horizontally slidably installed inside the horizontal sliding groove (303, 104), the arc-shaped locking block (306) is fixed inside (505), the inner side of the T-shaped telescopic seat (305) is in contact with the outer side of the adjusting rod (206), and the arc-shaped locking block (306) is engaged inside the annular groove (208) to realize the movement locking of the adjusting rod (206); The electromagnetic block (304) is energized to attract and move the T-shaped telescopic seat (305), which is used to unlock the adjusting rod (206) by the arc-shaped locking block (306).

4. A novel adjustable beam structure for vehicle lights according to claim 3, characterized in that, A W-shaped spring (307) is also provided between the T-shaped telescopic seat (305) and the electromagnetic block (304). Two sets of W-shaped springs (307) are symmetrically arranged vertically. The W-shaped springs (307) are used to provide the T-shaped telescopic seat (305) with a thrust towards the adjusting rod (206).

5. A novel adjustable beam structure for vehicle lights according to claim 2, characterized in that, The bottom of the inner wall of the top cover (105) is fixed with a limiting pressure ring (107) and an inner cover (108). The bottom end of the limiting pressure ring (107) is attached to the top end of the cross-shaped worm gear ring (201), and the inner cover (108) is attached to the inner side of the bottom cover (101). The bottom of the inner cover (108) and the bottom of the inner wall of the bottom shell (101) are symmetrically provided with bearing bases (109), and the shaft of the worm (202) is rotatably connected between the upper and lower bearing bases (109) through the bearing.

6. A novel adjustable beam structure for vehicle lights according to claim 3, characterized in that, The outer diameter of the adjusting rod (206) matches the inner diameter of the inner support cylinder (103). The outer diameter of the threaded rod (209) is slightly smaller than the outer diameter of the adjusting rod (206). Multiple arc-shaped blocks (306) are evenly arranged vertically. The outer wall size of the arc-shaped blocks (306) matches the inner wall size of the annular groove (208), and the distribution spacing of the arc-shaped blocks (306) matches the distribution spacing of the annular groove (208).

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