A needle pressing detection device for an automobile instrument
By designing and installing a needle-point testing device for automotive instrument panels with covers and lamps, and utilizing light reflection to create a high-gloss background, the high cost and complex operation of existing equipment are solved, providing a low-cost and easy-to-operate testing solution.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHIYAN CHEYI ELECTRONIC TECH CO LTD
- Filing Date
- 2025-06-03
- Publication Date
- 2026-07-24
AI Technical Summary
Existing automotive instrument panel needle pressure testing equipment is expensive and difficult to operate, making it unsuitable for individuals or small businesses.
A detection device comprising a mounting cover, a lamp assembly, and a hollow light shield was designed. The lamp assembly provides a light source, and the light reflection forms a high-gloss background to observe the installation status of the pointer, thus simplifying the operation process.
It enables low-cost, easy-to-operate pointer installation status detection, suitable for individuals or small businesses, improving detection efficiency and accuracy.
Smart Images

Figure CN224552665U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of needle pressure testing technology, specifically to a needle pressure testing device for automotive instrument panels. Background Technology
[0002] The car dashboard is a device that reflects the operating status of various vehicle systems. Common indicators include fuel gauge, washer fluid gauge, electronic throttle indicator, front and rear fog light indicators, and warning lights. The gauges on a car dashboard generally consist of a mounting cap and a pointer. To accommodate automated production, and because car gauges are precision instruments with high requirements for machining accuracy and quality, the mounting cap is prone to issues such as pointer tilting and unevenness exceeding tolerances. These problems can lead to inaccurate pointer readings, affecting the driver's judgment.
[0003] Therefore, to avoid the above situation, the instrument needle is usually tested. Common testing equipment usually has a lot of modern testing equipment. These devices are not only expensive to manufacture, but also difficult to operate, making them inconvenient for individuals or small businesses. Therefore, an automotive instrument needle testing device is proposed to solve the above problems. Utility Model Content
[0004] Based on the above description, this utility model provides an automotive instrument needle testing device to solve the problem that existing testing equipment is not suitable for individuals or small businesses due to its high cost and relatively difficult operation.
[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A car instrument needle detection device, comprising: a mounting cover and a second hollow light shield;
[0006] The mounting cover includes an observation hole on the upper surface of the top plate, which is positioned directly above the instrument panel;
[0007] The second hollow light shield is disposed on the lower surface of the top plate and is in close contact with the upper surface of the instrument panel. The lower surface of the top plate is provided with a lamp assembly located inside the second hollow light shield.
[0008] Based on the above technical solution, the present invention can be further improved as follows.
[0009] Furthermore, the mounting cover includes a top plate, and at least three limiting blocks are provided on the lower surface of the top plate, with the three limiting blocks respectively contacting the three sides of the instrument panel.
[0010] Furthermore, the observation hole is identical in shape to the pointer inside the instrument panel, located directly above the pointer, and larger than the pointer's size. A first hollow light shield is provided on the lower surface of the top plate, located between the observation hole and the pointer. The first hollow light shield is identical in shape to the pointer and larger than the pointer's size.
[0011] Furthermore, the lower surface of the top plate is provided with an annular groove located directly above the internal dial of the instrument panel, and the bottom of the annular groove is provided with a base plate corresponding to the annular groove.
[0012] Furthermore, the base plate includes an annular plate, and the annular plate is provided with a limiting groove along the inner circle of the upper surface. A second hollow light shield extending to the bottom of the limiting groove is provided inside the limiting groove.
[0013] Furthermore, the second hollow light shield includes a limiting ring disposed inside the annular plate, and the bottom end of the limiting ring is provided with a hollow cover body that penetrates the annular plate and extends to the bottom of the annular plate, wherein the outer diameter of the hollow cover body is smaller than the inner diameter of the annular plate.
[0014] Furthermore, the lower surfaces of the hollow cover and the first hollow light shield are closely fitted with the upper surface of the transparent top cover inside the instrument panel, and the transparent top cover is located above the instrument panel.
[0015] Furthermore, the light assembly includes a hollow ring plate disposed on the lower surface of the top plate and located within the inner ring of the limiting ring, and a light bead is disposed on the side of the hollow ring plate facing the instrument panel.
[0016] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:
[0017] 1. This utility model, by setting up components such as a mounting cover, a lamp group, and a second hollow light shield, allows the light to penetrate the transparent top cover and illuminate the inside of the dial when the lamp group is powered on, and forms a bright background on the pointer under the effect of light reflection. The pointer can be observed from directly above the mounting cover through the observation hole, and the installation status of the pointer can be observed by whether the light leakage is uniform.
[0018] 2. By designing the mounting cover, the second hollow light shield, and the base plate, the second hollow light shield is made easy to disassemble, allowing for easy removal and replacement after deformation occurs during long-term use. Attached Figure Description
[0019] Figure 1 A schematic diagram of the structure of an automotive instrument needle detection device provided in an embodiment of this utility model;
[0020] Figure 2 for Figure 1 A schematic diagram of the exploded structure;
[0021] Figure 3 This is an exploded view of the structure of an instrument panel in the prior art;
[0022] Figure 4 This is a schematic diagram of the structure of the mounting cover in an embodiment of this utility model;
[0023] Figure 5 for Figure 4 Another structural diagram from a different perspective;
[0024] Figure 6 This is a schematic diagram of the lamp assembly in an embodiment of the present utility model;
[0025] Figure 7 This is a schematic diagram of the structure of the second hollow light shield in this embodiment of the present invention;
[0026] Figure 8 This is a schematic diagram of the structure of the base plate in an embodiment of this utility model;
[0027] The attached diagram lists the components represented by each number as follows:
[0028] 1. Instrument panel; 11. Panel body; 12. Dial; 13. Pointer; 14. Transparent top cover; 2. Mounting cover; 21. Top plate; 22. Limiting block; 23. Annular groove; 24. First hollow light shield; 25. Observation hole; 3. Lamp assembly; 31. Hollow ring plate; 32. Lamp bead; 4. Second hollow light shield; 41. Limiting ring; 42. Hollow cover body; 5. Base plate; 51. Limiting groove; 52. Annular plate. Detailed Implementation
[0029] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.
[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
[0031] It is understood that spatial relation terms such as "below," "under," "below," "below," "above," "above," etc., can be used here to describe the relationship between one element or feature shown in the figure and other elements or features. It should be understood that, in addition to the orientation shown in the figure, spatial relation terms also include different orientations of the device in use and operation. For example, if the device in the figure is flipped, the element or feature described as "below" or "below" of the other element or feature will be oriented "above" the other element or feature. Therefore, the exemplary terms "below" and "below" can include both upper and lower orientations. Furthermore, the device may also include other orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptive terms used herein will be interpreted accordingly.
[0032] It should be noted that when one element is considered to be "connected" to another element, it can be directly connected to the other element or connected to the other element through an intermediary element. In the following embodiments, "connection" should be understood as "electrical connection," "communication connection," etc., if the connected circuits, modules, units, etc., have the transmission of electrical signals or data between them.
[0033] When used herein, the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising,” “including,” or “having,” etc., specify the presence of the stated feature, whole, step, operation, component, part, or combination thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof.
[0034] Please see Figure 3 As shown, the instrument panel 1 includes a panel body 11, the upper surface of the panel body 11 is provided with a groove, the inside of the groove is provided with a dial 12 and a pointer 13, the dial 12 is sleeved on the outside of the pointer 13, and the inside of the groove is provided with a transparent top cover 14 located above the pointer 13.
[0035] Based on the above, the body 11, the groove, the dial 12, the pointer 13, and the transparent top cover 14 are all existing structures of the instrument panel 1.
[0036] like Figure 2 , Figure 3 , Figure 4 as well as Figure 5 As shown, an automotive instrument needle detection device includes: a mounting cover 2 and a second hollow light shield 4;
[0037] The mounting cover 2 includes an observation hole 25 disposed on the upper surface of the top plate 21. The top plate 21 is disposed directly above the instrument panel 1. The mounting cover 2 includes the top plate 21. At least three limiting blocks 22 are disposed on the lower surface of the top plate 21. The three limiting blocks 22 respectively contact the three sides of the instrument panel 1.
[0038] The observation hole 25 has the same shape as the pointer 13 inside the instrument panel 1, and is located directly above the pointer 13, and is larger than the size of the pointer 13. That is, there is a gap between the outer contour of the observation hole 25 and the pointer 13 when viewed from top to bottom. The lower surface of the top plate 21 is provided with a first hollow light shield 24 located between the observation hole 25 and the pointer 13. The first hollow light shield 24 has the same shape as the pointer 13, and is larger than the size of the pointer 13.
[0039] The lower surface of the top plate 21 is provided with an annular groove 23 located directly above the internal dial 12 of the instrument panel 1, and the bottom of the annular groove 23 is provided with a bottom plate 5 corresponding to the annular groove 23.
[0040] Based on the above, the setting of the limiting block 22 can limit the top plate 21 to ensure that the top plate 21 is located directly above the instrument panel 1. The first hollow light shield 24 performs precise light shielding operation directly above the pointer 13. If the pointer 13 is installed normally, the light leaking from the gap between the first hollow light shield 24 and the pointer 13 is uniform. The setting of the observation tube 25 makes it convenient for the user to directly observe the light leakage.
[0041] like Figure 2 and Figure 8 As shown in Figure 1, the base plate 5 includes an annular plate 52. The annular plate 52 is provided with a limiting groove 51 along the inner circle of its upper surface. A second hollow light shield 4 extending to the bottom of the limiting groove 51 is provided inside the limiting groove 51.
[0042] like Figure 7 As shown, the second hollow light shield 4 includes a limiting ring 41 disposed inside the annular plate 52. The bottom end of the limiting ring 41 is provided with a hollow cover 42 that penetrates the annular plate 52 and extends to the bottom of the annular plate 52. The outer diameter of the hollow cover 42 is smaller than the inner diameter of the annular plate 52. The lower surfaces of the hollow cover 42 and the first hollow light shield 24 are tightly fitted with the upper surface of the transparent top cover 14 inside the instrument panel 1. The transparent top cover 14 is located above the instrument panel 12.
[0043] Based on the above, the base plate 5 is set on the lower surface of the top plate 21. At this time, the annular groove 23 and the limiting groove 51 cooperate with each other to fix the limiting ring 41, so that the second hollow light shield 4 is installed on the lower surface of the top plate 21. At this time, the second hollow light shield 4 makes the light reflected by the dial 12 more conspicuous. That is, when observing the pointer 13 through the observation hole 25, the second hollow light shield 4 provides a darker observation environment.
[0044] like Figure 2 and Figure 6 As shown, the second hollow light shield 4 is disposed on the lower surface of the top plate 21 and is closely attached to the upper surface of the instrument panel 1. The lower surface of the top plate 21 is provided with a lamp group 3 located inside the second hollow light shield 4.
[0045] The lamp assembly 3 includes a hollow ring plate 31 disposed on the lower surface of the top plate 21 and located in the inner ring of the limiting ring 41, and a lamp bead 32 is disposed on the side of the hollow ring plate 31 facing the instrument panel 1.
[0046] Based on the above, the lamp group 3 provides illumination. When the lamp bead 32 is powered on, it emits light. The light shines on the surface of the dial 12 through the transparent top cover 14 and is reflected by the dial 12, so that the light returns to the interior of the first hollow light shield 24. At this time, the reflected light provides a bright background for the pointer 13.
[0047] In summary, this detection device, by installing the mounting cover 2 above the instrument panel 1 and energizing the lamp bead 32 to generate light, emits light through the transparent top cover 14 onto the surface of the dial 12, and after being reflected by the dial 12, the light returns to the interior of the first hollow light shield 24. At this time, the reflected light provides a bright background for the pointer 13.
[0048] Users can observe the state of pointer 13 through observation hole 25. By observing the uniformity of light leakage through the gap between the first hollow light shield 24, observation hole 25 and pointer 13, users can understand whether pointer 13 is tilted. That is, if the pointer is tilted, the light leakage will be uneven. The area with less light leakage is the direction of pointer tilt. The device has a simple structure and is more suitable for individuals or small businesses with low budgets.
[0049] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A device for detecting pressure points on automotive instrument panels, characterized in that, include: Mounting cover (2) and second hollow light shield (4); The mounting cover (2) includes an observation hole (25) disposed on the upper surface of the top plate (21), which is located directly above the instrument panel (1); The second hollow light shield (4) is disposed on the lower surface of the top plate (21) and is closely attached to the upper surface of the instrument panel (1). The lower surface of the top plate (21) is provided with a lamp group (3) located inside the second hollow light shield (4). The observation hole (25) is identical in shape to the pointer (13) inside the instrument panel (1) and is located directly above the pointer (13), and is larger than the size of the pointer (13). A first hollow light shield (24) is provided on the lower surface of the top plate (21) between the observation hole (25) and the pointer (13). The first hollow light shield (24) is identical in shape to the pointer (13) and is larger than the size of the pointer (13).
2. The automotive instrument panel needle detection device according to claim 1, characterized in that, The mounting cover (2) includes a top plate (21), and at least three limiting blocks (22) are provided on the lower surface of the top plate (21). The three limiting blocks (22) respectively contact the three sides of the instrument panel (1).
3. The automotive instrument panel needle detection device according to claim 1, characterized in that, The lower surface of the top plate (21) is provided with an annular groove (23) located directly above the internal dial (12) of the instrument panel (1), and the bottom of the annular groove (23) is provided with a bottom plate (5) corresponding to the annular groove (23).
4. The automotive instrument panel needle detection device according to claim 3, characterized in that, The base plate (5) includes an annular plate (52), and the annular plate (52) is provided with a limiting groove (51) along the inner circle of the upper surface. A second hollow light shield (4) extending to the bottom of the limiting groove (51) is provided inside the limiting groove (51).
5. The automotive instrument panel needle detection device according to claim 4, characterized in that, The second hollow light shield (4) includes a limiting ring (41) disposed inside the annular plate (52). The bottom end of the limiting ring (41) is provided with a hollow cover (42) that penetrates the annular plate (52) and extends to the bottom of the annular plate (52). The outer diameter of the hollow cover (42) is smaller than the inner diameter of the annular plate (52).
6. The automotive instrument panel needle detection device according to claim 5, characterized in that, The lower surfaces of the hollow cover (42) and the first hollow light shield (24) are closely fitted with the upper surface of the transparent top cover (14) inside the instrument panel (1), and the transparent top cover (14) is located above the instrument panel (12).
7. The automotive instrument panel needle detection device according to claim 5, characterized in that, The lamp assembly (3) includes a hollow ring plate (31) disposed on the lower surface of the top plate (21) and located in the inner ring of the limiting ring (41), and lamp beads (32) are disposed on the side of the hollow ring plate (31) facing the instrument panel (1).