Gap ruler

Abstract

The utility model discloses a gap ruler which comprises a handle and a sheet-shaped ruler body, the ruler body comprises a gap ruler body and a pressure-sensitive color-changing material coating coated on the outer surface of the gap ruler body, the gap ruler body is composed of a fixing sheet and a long-sheet-shaped detection sheet, one end of the detection sheet along the length direction is integrally connected with the fixing sheet, and the other end of the detection sheet along the length direction is connected with the pressure-sensitive color-changing material coating. The fixing piece is connected with the handle. According to the utility model, the pressure-sensitive color-changing material coating is arranged on the surface of the ruler body, so that whether a gap is proper or not can be directly fed back by utilizing an extrusion color-changing process, the measurement is more visual and clear, and the measurement and use convenience is improved; and meanwhile, the influence on use and large manual measurement error caused by difficult identification of scale reading values on a conventional feeler gauge are avoided, and the measurement accuracy can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gap detection tools, in particular to a gap ruler. Background Art

[0002] In order to obtain speed information in real time, a speed sensor is installed on the gear plate in the prior art. During the installation of the speed sensor, the gap between the sensing probe of the speed sensor and the gear on the gear plate needs to be controlled (e.g., the preset gap distance is 0.8mm). If the gap is too small, the sensing probe of the speed sensor is prone to rubbing against the gear, causing the high-speed rotating gear to hit and damage the speed sensor; and if the gap is too large, it will cause pulse loss during speed measurement, resulting in inaccurate and low measured speed.

[0003] Generally, the gap between the sensing probe of the speed sensor and the gear on the gear plate is adjusted to the standard range by adding and subtracting shims several times, which is inefficient and time-consuming. When measuring the gap distance, the conventional practice is to use a feeler gauge to measure the gap. At present, there is a large error in the existing feeler gauge. The result measured by each person is not the same value, and the difference can even reach 0.5mm. In addition, after the feeler gauge has been used for a long time, due to oil pollution, wear and other reasons, the reading value on the scale becomes unclear and difficult to recognize, which will also affect the normal and correct measurement and use.

[0004] Therefore, there is an urgent need for a gap gauge with a new structure to improve the convenience and accuracy of measuring the gap. Utility Model Content

[0005] The purpose of the utility model is to provide a gap gauge, which is provided with a pressure-sensitive color-changing material coating, and uses the color change to intuitively display whether the feedback gap is appropriate. It is easy to measure and use and has good measurement accuracy. It well solves the problems mentioned in the above background technology that the conventional feeler gauge is used to measure the gap, resulting in large errors, inaccurate readings, and inconvenience in use.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A gap ruler comprises a handle and a sheet-shaped ruler body, wherein the ruler body comprises a gap ruler body and a pressure-sensitive color-changing material coating coated on the outer surface of the gap ruler body, the gap ruler body is composed of a fixed sheet and a long sheet-shaped detection sheet, one end of the detection sheet along the length direction is integrally connected to the fixed sheet, and the fixed sheet is connected to the handle.

[0008] Furthermore, the handle comprises a fixing block and a gripping portion, one end of the gripping portion is connected to the bottom of the fixing block, and the side wall of the fixing block has an arc-shaped fixing surface matching the shape of the fixing sheet.

[0009] Furthermore, the arc-shaped fixing surface is provided with a threaded hole, the fixing plate is provided with an assembly through hole corresponding to the threaded hole, and a screw is installed between the threaded hole and the assembly through hole. In this way, the ruler body can be fixed to the arc-shaped fixing surface on the handle by means of the screw.

[0010] Furthermore, two of the threaded hole, two of the assembly through hole and two of the screw are provided, so that the ruler body can be installed more firmly.

[0011] Furthermore, the arc-shaped fixing surface is provided with a positioning convex edge at one end close to the gripping portion. Thus, when assembling the gap gauge, the positioning convex edge can be used to abut against the lower surface of the fixing plate so as to quickly align the threaded hole with the assembly through hole to install the screw.

[0012] Furthermore, the distribution direction of the positioning protrusion is perpendicular to the length direction of the detection piece.

[0013] Furthermore, the gripping portion comprises an enlarged portion and a connecting portion connected between the enlarged portion and the fixing block, and the surfaces of the enlarged portion and the connecting portion both have smooth curved surfaces, so that it is convenient to grip the gauge by hand and take out the gap gauge after completing the measurement.

[0014] Furthermore, the surface of the fixing plate is laser engraved with identification characters. Specifically, the identification characters can be words, numbers, letters, symbols and other elements, so as to display and identify the thickness of the gap ruler, that is, the standard distance of the measuring gap.

[0015] Furthermore, the cross section of the ruler body is arc-shaped, and the outer surface of the ruler body and the inner surface of the ruler body are two coaxial cylindrical surfaces.

[0016] Furthermore, the gap gauge body is a sheet structure made of magnetic material. Thus, when the gap gauge is used for measurement, the gap gauge can be adsorbed and closely attached to the gear plate, thereby improving the convenience of operation during measurement.

[0017] Compared with the prior art, the utility model provides a gap gauge with the following beneficial effects:

[0018] When the utility model is used, the gap gauge is placed on the gear plate through the observation hole. When the speed sensor is installed, if the color of the gap gauge changes after the speed sensor is tightened due to the pressure-sensitive color-changing material coating, it means that the gap has reached the preset distance, indicating that the gap is qualified, and the fixed speed sensor can be installed, and the gap gauge can be pulled out by grasping the handle; if the color of the gap gauge does not change after the speed sensor is tightened, it means that the gap is too large, and it is necessary to reduce the adjustment gasket and reinstall it until the color of the gap gauge changes, thereby achieving the purpose of accurately controlling the speed sensor installation gap at a specific distance value. Since the pressure-sensitive color-changing material coating is provided on the surface of the gauge body, the process of extrusion color change can be used to directly feedback whether the gap is appropriate, which is more intuitive and clear, and improves the convenience of measurement and use; at the same time, it also avoids the scale reading value on the conventional feeler gauge being difficult to identify, which affects the use and the large error of manual measurement, and can improve the accuracy of measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0021] Figure 2 It is a schematic diagram of the assembly of the utility model;

[0022] Figure 3 Schematic diagram of the top view of the gap ruler body.

[0023] Figure numerals: 1. handle; 11. fixing block; 111. arc-shaped fixing surface; 112. threaded hole; 113. positioning convex edge; 12. gripping portion; 121. enlarged portion; 122. connecting portion; 2. gap ruler body; 21. fixing plate; 211. assembly through hole; 212. identification character; 22. detection plate; 3. screw. DETAILED DESCRIPTION

[0024] The technical solution of the utility model will be clearly and completely described below through detailed embodiments and in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Please refer to Figure 1 to Figure 3The present embodiment provides a gap ruler, including a handle 1 and a sheet-shaped ruler body, wherein the ruler body includes a gap ruler body 2 and a pressure-sensitive color-changing material coating coated on the outer surface of the gap ruler body 2, wherein the gap ruler body 2 is composed of a fixing plate 21 and a long sheet-shaped detection plate 22, wherein one end of the detection plate 22 along the length direction is integrally connected with the fixing plate 21, and the fixing plate 21 is connected to the handle 1.

[0026] In this way, when in use, the gap gauge is placed on the gear plate through the observation hole. When the speed sensor is installed, if the speed sensor is tightened, the color of the gap gauge will change (such as turning red as preset) due to the pressure-sensitive color-changing material coating, which means that the gap has reached the preset distance (such as the preset gap is 0.8mm), indicating that the gap is qualified, and the fixed speed sensor can be installed and the gap gauge can be pulled out by grasping the handle; if the color of the gap gauge does not change after the speed sensor is tightened, it means that the gap is too large, and it is necessary to reduce the adjustment gasket and reinstall it until the color of the gap gauge changes, so as to achieve the purpose of accurately controlling the speed sensor installation gap at 0.8mm. Since the pressure-sensitive color-changing material coating is set on the surface of the gauge body, the color change process can be squeezed to directly feedback whether the gap is appropriate, which is more intuitive and clear, and improves the convenience of measurement and use; at the same time, it also avoids the scale reading value on the conventional feeler gauge that is difficult to identify and affects the use and the large error of manual measurement, which can improve the accuracy of measurement.

[0027] In some specific embodiments, reference Figure 1 and Figure 2 The handle 1 includes a fixing block 11 and a gripping portion 12, one end of the gripping portion 12 is connected to the bottom of the fixing block 11, and the side wall of the fixing block 11 has an arc-shaped fixing surface 111 matching the shape of the fixing sheet 21. Specifically, as Figure 2 As shown, the arc-shaped fixing surface 111 is provided with a threaded hole 112, the fixing plate 21 is provided with an assembly through hole 211 corresponding to the threaded hole 112, and a screw 3 is installed between the threaded hole 112 and the assembly through hole 211. In this way, the ruler body can be fixed to the arc-shaped fixing surface on the handle by screws.

[0028] In some preferred embodiments, Figure 2 As shown, two of the threaded hole 112, two of the assembly through hole 211 and two of the screw 3 are provided, so that the ruler body can be installed more firmly.

[0029] As an improved implementation, refer to Figure 1 and Figure 2The arc-shaped fixing surface 111 is provided with a positioning convex edge 113 at one end close to the gripping portion 12. Thus, when assembling the gap gauge, the positioning convex edge can be used to press against the lower surface of the fixing sheet so as to quickly align the threaded hole with the assembly through hole to install the screw. Specifically, the distribution direction of the positioning convex edge 113 is perpendicular to the length direction of the detection sheet 22.

[0030] In some specific embodiments, Figure 2 As shown, the gripping portion 12 includes an enlarged portion 121 and a connecting portion 122 connected between the enlarged portion 121 and the fixed block 11, and the surfaces of the enlarged portion 121 and the connecting portion 122 both have smooth curved surfaces. In this way, it is convenient to grasp with hands and take out the gap ruler after completing the measurement. Specifically, the enlarged portion 121 and the connecting portion 122 are both rotating body structures. As an example, the enlarged portion 121, the connecting portion 122 and the fixed block 11 can be connected as a whole by integral injection molding to form the handle 1.

[0031] In some specific embodiments, Figure 2 As shown, the surface of the fixing plate 21 is laser engraved with identification characters 212. Specifically, the identification characters 212 can be words, numbers, letters, symbols and other elements to display and identify the thickness of the gap ruler, that is, the standard distance of the gap measurement. As an example, the surface of the fixing plate can be laser engraved with identification characters "thickness 0.8mm" to indicate that this gap ruler is used to measure a gap of 0.8mm.

[0032] In some specific embodiments, reference Figure 3 The cross section of the ruler body is arc-shaped, and the outer surface of the ruler body and the inner surface of the ruler body are two coaxial cylindrical surfaces.

[0033] In some specific embodiments, the gap scale body 2 is a sheet structure made of magnetic material. In this way, when the gap scale is used for measurement, the gap scale can be adsorbed and closely attached to the gear plate, thereby improving the convenience of operation during measurement. As an example, the gap scale body can be made of a magnetic steel sheet by cutting and bending.

[0034] In some specific implementations, as an example, the thickness of the ruler can be set to a standard thickness of 0.6 mm, 0.8 mm, 1 mm, etc., so that it can be used to measure the gap of the corresponding distance. The length of the detection piece can be set to 81.5 mm, and the width can be set to 16 mm.

[0035] It should be noted that, for the above-mentioned specification settings of the gap gauge, those skilled in the art can flexibly adjust the settings according to actual measurement needs, and are not limited to the above-mentioned specifications and dimensions.

[0036] The above embodiments are merely illustrative of the concept and technical solution of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by a person with ordinary knowledge in the relevant technical field without departing from the spirit and technical ideas disclosed in the present invention shall still be covered by the claims of the present invention.

[0037] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A gap ruler, comprising a handle and a sheet-shaped ruler body, characterized in that: The ruler body includes a gap ruler body and a pressure-sensitive color-changing material coating coated on the outer surface of the gap ruler body. The gap ruler body is composed of a fixed plate and a long sheet-shaped detection plate. One end of the detection plate along the length direction is integrally connected to the fixed plate, and the fixed plate is connected to the handle.

2. The gap gauge according to claim 1, characterized in that: The handle comprises a fixing block and a gripping portion, one end of the gripping portion is connected to the bottom of the fixing block, and the side wall of the fixing block has an arc-shaped fixing surface matching the shape of the fixing sheet.

3. The gap gauge according to claim 2, characterized in that: The arc-shaped fixing surface is provided with a threaded hole, the fixing plate is provided with an assembly through hole corresponding to the threaded hole, and a screw is installed between the threaded hole and the assembly through hole.

4. The gap gauge according to claim 3, characterized in that: There are two of each of the threaded hole, the assembly through hole and the screw.

5. The gap gauge according to claim 2, characterized in that: The arc-shaped fixing surface is provided with a positioning convex edge at one end close to the gripping portion.

6. The gap gauge according to claim 5, characterized in that: The distribution direction of the positioning protrusion is perpendicular to the length direction of the detection piece.

7. The gap gauge according to claim 2, characterized in that: The gripping portion comprises an enlarged portion and a connecting portion connected between the enlarged portion and the fixing block, and surfaces of the enlarged portion and the connecting portion both have smooth curved surfaces.

8. The gap gauge according to claim 1, characterized in that: The surface of the fixing plate is laser engraved with identification characters.

9. The gap gauge according to claim 1, characterized in that: The cross section of the ruler body is in an arc shape, and the outer surface of the ruler body and the inner surface of the ruler body are two coaxial cylindrical surfaces.

10. The gap gauge according to any one of claims 1 to 9, characterized in that: The gap ruler body is a sheet structure made of magnetic material.

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