A high-vibration work light
Patent Information
- Application Number
- CN202522727978.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-23
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-12-23
AI Technical Summary
Traditional work lights are prone to displacement and loosening of connections in high-vibration environments, leading to changes in the beam angle and unreliable connections, which pose safety hazards.
The lamp body and bracket are rigidly circumferentially locked by the engagement of the positioning protrusion and the positioning groove, and the anti-slip pattern is formed to prevent micro-slippage.
It effectively prevents the lamp body from rotating and the connection from becoming loose, ensuring that the lamp body maintains a stable installation posture and reliable connection in harsh vibration environments.
Smart Images
Figure CN224932609U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lighting equipment technology, specifically to a high-vibration work light suitable for engineering vehicles operating in high-vibration environments. Background Technology
[0002] Work lights are widely used in construction machinery, heavy vehicles, ships, and other equipment, which often experience continuous and severe vibrations during operation. Traditional work light brackets and lamp bodies are typically connected using simple bolt clamps, which have the following inherent drawbacks: The lamp body is prone to displacement ("head-down" phenomenon): Under continuous high-level vibration and impact, the plastic gasket between the lamp body and the bracket (if present) and the bracket itself lack an effective circumferential positioning structure. The lamp body is prone to slow rotation or sliding relative to the bracket, resulting in uncontrollable changes in the beam illumination angle, i.e., "head-down" or changes in the elevation angle, affecting the lighting effect and work safety; The connection is prone to loosening and has insufficient vibration resistance: Traditional bolt-nut connections rely mainly on friction to prevent loosening. Due to the low coefficient of friction between the plastic gasket and the metal bracket, even with a consistent initial tightening torque (normal pressure), the connection point will still experience slight slippage under prolonged, high-intensity vibration, eventually leading to loosening or even failure of the fastener. This makes it difficult for the work light to pass high-level vibration tests (such as long-term random vibration and impact tests), resulting in poor reliability and potential safety hazards. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide a high-vibration work lamp with a stable structure and excellent anti-loosening and anti-rotation performance, so as to ensure that it can maintain its installation posture and connection reliability for a long time in harsh vibration environment.
[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is: a high-vibration work lamp, including a lamp body and a bracket connected to a lamp body connecting seat. The bracket includes a U-shaped frame, a first bolt, a first nut cooperating with the first bolt, a second bolt, and a second nut cooperating with the second bolt. The U-shaped frame includes a base plate and side plates on both sides of the base plate. The first bolt passes through the side plates and the connecting seat, and the second bolt passes through the base plate. An anti-rotation washer is provided between the connecting seat and the side plates. The cross-section of the connecting seat has a positioning groove. The inner side of the anti-rotation washer has a positioning protrusion that cooperates with the positioning groove. The side plate near the anti-rotation washer has an anti-slip pattern. The principle of this utility model: by the interlocking of the positioning protrusion on the anti-rotation washer and the positioning groove on the connecting seat, a rigid circumferential locking between the lamp body and the bracket is achieved, fundamentally eliminating the possibility of the lamp body rotating (tilting down or tilting up) due to vibration.
[0005] As an improvement, the anti-rotation pad is provided with three circumferentially evenly distributed positioning protrusions.
[0006] As an improvement, a first flat washer and a first spring washer are provided between the first nut and one side plate.
[0007] As an improvement, a rubber pad, a second flat washer, and a second spring washer are provided between the base plate and the second nut.
[0008] The beneficial effects of this utility model compared with the prior art are: 1. By interlocking the positioning protrusion on the anti-rotation pad with the positioning groove on the connecting seat, a rigid circumferential lock between the lamp body and the bracket is achieved, fundamentally eliminating the possibility of the lamp body rotating (head down or head up) due to vibration. 2. The anti-slip pattern on the side plate and the outer surface of the anti-rotation pad form a high-friction pair, which, together with the positioning and meshing structure, eliminates micro-slippage at the connection. Attached Figure Description
[0009] Figure 1 This is a schematic diagram of the present invention.
[0010] Figure 2 This is an exploded view of the bracket of this utility model. Detailed Implementation
[0011] The present invention will be further described below with reference to the accompanying drawings.
[0012] like Figure 1 As shown. A high-vibration work lamp mainly includes a lamp body 1, a connecting base 2, a bracket 3, and related fastening and anti-loosening components.
[0013] like Figure 1 , 2 As shown, the bottom of the lamp body 1 is provided with an integrally formed connecting seat 2, which is usually a metal casting or a high-strength engineering plastic part. The main body of the bracket 3 is a U-shaped metal frame 31, which is integrally formed by a base plate 312 and two vertically upward side plates 311.
[0014] like Figure 1 , 2 As shown, the connecting seat 2 is inserted between the two side plates 311 of the U-shaped frame 31. At least one positioning groove 21 is machined on each outer surface of the connecting seat 2. In this embodiment, a total of three circumferentially evenly distributed positioning grooves 21 are provided, and the positioning grooves are cylindrical in shape.
[0015] like Figure 1 , 2As shown, an anti-rotation washer 4 is installed between the connecting seat 2 and the side plate 311 on each side. The anti-rotation washer 4 has multiple positioning protrusions 41 integrally formed on its inner surface; in this embodiment, there are three cylindrical protrusions evenly distributed along the circumference. These positioning protrusions 41 fit precisely into the positioning grooves 21 on the side of the connecting seat 2, forming a tight meshing fit.
[0016] like Figure 1 , 2 As shown, on the inner surface of each side plate 311 (i.e. the surface in contact with the anti-rotation washer 4), there are dense anti-slip patterns 313 processed by stamping or knurling. When the first bolt 5 is tightened, the anti-rotation washer 4 is tightly pressed onto the surface of the anti-slip pattern 313, generating a great static friction force.
[0017] like Figure 1 , 2 As shown, during installation, first align the positioning protrusions 41 of the two anti-rotation washers 4 and insert them into the positioning grooves 21 on both sides of the connecting seat 2; then place the connecting seat 2 with the anti-rotation washers 4 between the two side plates 311 of the U-shaped frame 31; next, pass the first bolt 5 through the side plate 311 on one side, the anti-rotation washer 4, the connecting seat 2, the anti-rotation washer 4 on the other side, and the side plate 311 on the other side in sequence; at the tail of the bolt, first put on the first flat washer 51, and then put on the first spring washer 52; finally, tighten the first nut 53 and apply the specified torque; at this point, the lamp body 1 and the bracket 3 achieve a rigid connection that prevents rotation and slippage.
[0018] like Figure 1 , 2 As shown, finally, the entire assembly is installed to the target position via the base plate 312. The second bolt 6 passes from top to bottom through the base plate 312, the external mounting surface, the rubber pad 61, the second flat washer 62, and the second spring washer 63, and finally the second nut 64 is tightened.
Claims
1. A high-vibration work lamp, comprising a lamp body and a bracket connected to a lamp body connecting seat, the bracket comprising a U-shaped frame, a first bolt, a first nut cooperating with the first bolt, a second bolt, and a second nut cooperating with the second bolt, the U-shaped frame comprising a base plate and side plates disposed on both sides of the base plate, the first bolt passing through the side plates and the connecting seat, and the second bolt passing through the base plate; characterized in that: An anti-rotation pad is provided between the connecting seat and the side plate. The cross-section of the connecting seat is provided with a positioning groove. The inner side of the anti-rotation pad is provided with a positioning protrusion that cooperates with the positioning groove. The side plate is provided with an anti-slip pattern on the side near the anti-rotation pad.
2. A high-vibration work lamp according to claim 1, characterized in that: The anti-rotation pad has three circumferentially evenly distributed positioning protrusions.
3. A high-vibration work lamp according to claim 1, characterized in that: A first flat washer and a first spring washer are provided between the first nut and one side plate.
4. A high-vibration work lamp according to claim 1, characterized in that: A rubber pad, a second flat washer, and a second spring washer are provided between the base plate and the second nut.