Automobile tire pattern depth gauge

Abstract

The utility model discloses an automobile tire pattern depth gauge which comprises a holder and a measuring ruler strip which is vertically and movably inserted in the vertical central axis position of the holder, and ear handles are further arranged on the two sides of the holder. A buckle is horizontally and slidably connected to the position, close to the bottom, of the holder, and a clamping groove corresponding to the buckle in position is formed in the side face of the measuring ruler strip. An annular supporting base is horizontally arranged at the bottom of the holder, and the circle center corresponding to the supporting base is located on the vertical axis of the measuring ruler strip. According to the utility model, the bottom of the holder is coaxially provided with the annular supporting base which is located on the same horizontal plane with the bottom of the holder, so that the depth gauge has a three-dimensional structure, the supporting base can vertically support on the tread of a tire at 360 degrees, and the scale marks on the measuring ruler strip can directly face a worker on the side surface of an automobile; not only can the perpendicularity be easily kept, but also the reading is convenient, the result error caused by reading and operation is greatly reduced, and convenience is brought to use.

Description

Technical Field

[0001] This utility model relates to the field of automotive testing technology, specifically to a tire tread depth gauge. Background Technology

[0002] In the process of buying and selling used cars, vehicle quality inspection is more critical and important than that of new cars, directly affecting the assessment of the condition and price of the used car. Moreover, tire tread inspection is also an important part of ensuring driving safety. By inspecting the wear of the tire treads, it can reflect the overall wear and tear of the used car.

[0003] Using a tire tread depth gauge to check the tire tread depth is currently the most mainstream method. The measuring strip is inserted vertically into the tread groove and the value is read. The tread depth of new passenger car tires is generally between 8-10 mm, and the tire tread wear limit is 1.6 mm. When it is close to or lower than this value, it indicates excessive wear.

[0004] However, existing tire tread depth gauges have certain inconveniences in use. The gauge must be perpendicular to the corresponding tire tread position; otherwise, the accuracy of the measurement results is directly affected. First, the existing gauges have a relatively flat overall structure, with the graduations on the front. When measuring tire tread depth from the side of a car, the gauge graduations must be aligned with the front or rear of the vehicle to ensure the gauge's retainer is misaligned with the tire tread grooves and supported by the tire tread. This makes reading the tread depth from the side of the car very inconvenient and directly affects the test results. Second, while the gauge has a retainer to prevent it from tilting to the left or rear of the car, it can easily tilt towards the front or rear of the vehicle. It lacks a 360-degree perpendicularity limit and requires manual control, which not only easily leads to inflated readings but also makes operation inconvenient and has shortcomings. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a tire tread depth gauge to solve the problems of errors in the detection results and inconvenience in the use of existing tire tread depth gauges.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0007] A tire tread depth gauge for automobiles includes a retainer and a measuring strip that is vertically and movably inserted into the vertical center axis of the retainer. A fixing cap that is movably sleeved on the upper surface of the measuring strip is fixed to the top of the retainer, and a support spring that supports the top of the measuring strip is vertically installed inside the fixing cap.

[0008] The measuring ruler has a limit groove along the vertical direction, and the retainer is equipped with a limit screw that is movably inserted into the limit groove. The retainer is also provided with lugs on both sides.

[0009] The measuring scale is provided with graduation lines, and the retainer is provided with marking lines;

[0010] The retainer is horizontally slidably connected to a buckle near the bottom, and the side of the measuring ruler is provided with a groove corresponding to the buckle position;

[0011] The bottom of the retainer is horizontally provided with a circular support base, and the center of the support base is located on the vertical axis of the measuring scale.

[0012] Preferably, the surface of the fixing cap is provided with a ring of anti-slip raised ridges near the top, and the surface of the fixing cap is provided with a mesh anti-slip texture.

[0013] Preferably, the retainer includes a top fixing frame, a middle fixing frame, and a bottom fixing frame, with the ear stem symmetrically arranged on both sides of the middle fixing frame, and the top fixing frame, middle fixing frame, bottom fixing frame, and ear stem forming a fixed integral structure.

[0014] Preferably, the limiting screw is installed on the top fixing frame, and the buckle is slidably connected to the horizontally arranged sliding groove on the bottom fixing frame.

[0015] Preferably, the buckle has vertical anti-slip grooves on both the front and back.

[0016] Preferably, the lower surface of the support base and the bottom of the retainer are on the same horizontal plane.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] This invention provides a three-dimensional depth gauge by coaxially mounting a ring-shaped support base at the bottom of the holder, which is on the same horizontal plane as the bottom of the holder. The support base provides 360-degree vertical support on the tire tread, and the scale lines on the measuring gauge can be directly facing the side of the vehicle for the operator. This not only ensures that the gauge is vertical but also makes reading easy, significantly reducing errors caused by reading and operation. This invention solves the problems of existing tire tread depth measuring gauges being prone to errors and inconvenient to use. Attached Figure Description

[0019] Figure 1 This is a front view of the present utility model;

[0020] Figure 2 This is a side view of the present invention;

[0021] Figure 3 This is a top view of the present invention;

[0022] Figure 4 This is a cross-sectional view of the present invention.

[0023] In the diagram: 1. Holder; 101. Top fixing bracket; 102. Middle fixing bracket; 103. Bottom fixing bracket; 104. Slide groove; 2. Measuring ruler strip; 201. Limiting groove; 202. Slot; 3. Fixing cap; 4. Support spring; 5. Limiting screw; 6. Ear handle; 7. Buckle; 8. Support base. Detailed Implementation

[0024] 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.

[0025] like Figure 1-4 As shown, this utility model provides a technical solution: a tire tread depth gauge for automobiles, including a retainer 1 and a measuring strip 2 vertically and movably inserted at the vertical center axis of the retainer 1. The measuring strip 2 is provided with scale lines, and the retainer 1 is provided with marking lines. The retainer 1 includes a top fixing frame 101, a middle fixing frame 102 and a bottom fixing frame 103. The lugs 6 are symmetrically arranged on both sides of the middle fixing frame 102. The top fixing frame 101, the middle fixing frame 102, the bottom fixing frame 103 and the lugs 6 are fixed as a whole structure.

[0026] The top of the retainer 1 is fixed with a fixing cap 3 that is movably sleeved on the upper surface of the measuring scale 2. The surface of the fixing cap 3 is provided with a ring of anti-slip ridges near the top, and the surface of the fixing cap 3 is provided with a grid anti-slip texture. A support spring 4 that supports the top of the measuring scale 2 is vertically installed inside the fixing cap 3.

[0027] A limiting groove 201 is provided on the measuring ruler 2 along the vertical direction. A limiting screw 5 is installed on the retainer 1 and is movably inserted into the limiting groove 201. The limiting screw 5 is installed on the top fixed frame 101. The buckle 7 is slidably connected to the sliding groove 104 provided horizontally on the bottom fixed frame 103. Ear handles 6 are also provided on both sides of the retainer 1.

[0028] A buckle 7 is horizontally slidably connected to the holder 1 near the bottom. The front and back of the buckle 7 are provided with vertical anti-slip strips. The side of the measuring ruler 2 is provided with a groove 202 corresponding to the position of the buckle 7.

[0029] A circular support base 8 is horizontally provided at the bottom of the retainer 1, and the center of the support base 8 is located on the vertical axis of the measuring scale 2. The lower surface of the support base 8 and the bottom of the retainer 1 are on the same horizontal plane.

[0030] Working principle:

[0031] Both the handle 6 and the fixing cap 3 can be used by hand. The measuring strip 2 is automatically extended by the support spring 4. The limiting screw 5 is inserted into the limiting groove 201 to prevent the measuring strip 2 from falling off. When using it, ensure that the scale line faces the operator and align the measuring strip 2 with the tire tread groove. Press the retainer 1 so that the support base 8 presses on the tire surface. At this time, the reading on the scale line on the measuring strip 2 corresponding to the marked line on the retainer 1 is the depth of the tread groove at this point. The support base 8 is circular, achieving a vertical limiting effect and avoiding reading and operation errors from affecting the test results. By measuring the depth of the tread grooves at multiple locations on the same tire, the accuracy of the test results is improved. After use, press the measuring strip 2 to retract the support spring 4, push the buckle 7 to one side of the measuring strip 2 so that it is locked into the slot 202, and retract the measuring strip 2 into the retainer 1. This prevents the measuring strip 2 from being accidentally bent or damaged when not in use, which would affect the accuracy or use.

[0032] It should be noted that, in this document, terms such as “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 process, method, article, or apparatus.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tire tread depth gauge for automobiles, comprising a retainer (1) and a measuring strip (2) vertically and movably inserted into the retainer (1) at its vertical center axis, characterized in that: The top of the retainer (1) is fixed with a fixing cap (3) that is movably sleeved on the upper surface of the measuring scale (2), and a support spring (4) that supports the top of the measuring scale (2) is vertically installed inside the fixing cap (3). The measuring ruler (2) is provided with a limiting groove (201) along the vertical direction. The retainer (1) is equipped with a limiting screw (5) that is movably inserted into the limiting groove (201). The retainer (1) is also provided with ear handles (6) on both sides. The measuring ruler (2) is provided with scale lines, and the retainer (1) is provided with marking lines; The retainer (1) is horizontally slidably connected to a buckle (7) near the bottom, and the measuring ruler (2) has a groove (202) on its side corresponding to the position of the buckle (7). The bottom of the retainer (1) is provided with a circular support base (8) and the center of the support base (8) is located on the vertical axis of the measuring ruler (2).

2. The tire tread depth gauge according to claim 1, characterized in that: The fixing cap (3) has a ring of anti-slip ridges near the top of its surface, and the surface of the fixing cap (3) has a mesh anti-slip texture.

3. The tire tread depth gauge according to claim 1, characterized in that: The retainer (1) includes a top fixing frame (101), a middle fixing frame (102) and a bottom fixing frame (103). The ear handle (6) is symmetrically arranged on both sides of the middle fixing frame (102). The top fixing frame (101), the middle fixing frame (102), the bottom fixing frame (103) and the ear handle (6) are a fixed integral structure.

4. The tire tread depth gauge according to claim 3, characterized in that: The limiting screw (5) is installed on the top fixing frame (101), and the buckle (7) is slidably connected to the horizontally arranged slide groove (104) on the bottom fixing frame (103).

5. The tire tread depth gauge according to claim 1, characterized in that: The buckle (7) has vertical anti-slip stripes on both the front and back.

6. The tire tread depth gauge according to claim 1, characterized in that: The lower surface of the support base (8) is on the same horizontal plane as the bottom of the retainer (1).

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