Tool for measuring inner diameter and outer diameter of nut

By designing a unified measuring mechanism and a horizontal placement mechanism for measuring the inner and outer diameters of nuts, the simultaneous measurement of the inner and outer diameters of nuts is achieved, solving the problem of low efficiency in step-by-step measurement in existing technologies and improving measurement efficiency and accuracy.

CN223551040UActive Publication Date: 2025-11-14CHANGSHAN COUNTY XINSHUN PRECISION MASCH CO LTD
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Patent Information

Application Number
CN202423043450.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-10
Publication Date
2025-11-14
Estimated Expiration
2034-12-10

AI Technical Summary

Technical Problem

Existing vernier calipers require separate steps to measure the outer and inner diameters of nuts, which affects measurement efficiency.

Method used

A tool for measuring the inner and outer diameters of nuts was designed. It adopts a unified measuring mechanism and a horizontal placement mechanism to simultaneously measure the inner and outer diameters of nuts. The inner and outer diameters of the nuts are clamped by the cooperation of the movable caliper and the connecting spring, and the visibility of the measurement environment is improved by the use of a supplementary light.

Benefits of technology

This reduces the number of steps, improves measurement efficiency, ensures the nut is placed horizontally, and enhances the accuracy of measurement results.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a nut inner and outer diameter measuring tool, belongs to the technical field of measuring tools, and aims to solve the problem that the efficiency of measuring the inner and outer diameters of a nut is affected due to more operation steps when the outer diameter of the nut is firstly measured and then the inner diameter of the nut is measured in the prior art. Comprising a caliper body, a caliper fixing part, a first outer diameter plate, a scale plate, a horizontal connecting plate, a unified measuring mechanism and a horizontal placing mechanism. The caliper fixing piece is fixedly connected to the left side of the caliper body. The first outer diameter plate is fixedly connected to the right side of the lower end of the fixed caliper piece; the scale plate is of a transparent acrylic plate structure with scales, and the scale plate is fixedly connected to the front end of the caliper main body; the horizontal connecting plate is arranged below the caliper main body; the unified measuring mechanism is arranged on the outer side of the caliper main body; and the horizontal placing mechanism is arranged above the horizontal connecting plate, so that simultaneous measurement of the inner diameter and the outer diameter of the nut is realized, and the nut measurement efficiency is improved.
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Description

Technical Field

[0001] This utility model belongs to the field of measuring tool technology, and more specifically, it relates to a tool for measuring the inner and outer diameters of nuts. Background Technology

[0002] When replacing nuts, matching specifications, ensuring installation quality, and ensuring safety in use, it is generally necessary to measure the inner and outer diameters of the nuts first. Currently, vernier calipers are generally used to measure the inner and outer diameters of nuts. Existing vernier calipers generally consist of a main scale, a vernier scale, measuring jaws, a depth gauge, and a fastening nut.

[0003] The existing application number is CN201721237268.2. This utility model relates to a vernier caliper, characterized in that it includes a main scale, a secondary scale, a locking screw, and two adjusting nuts. The main scale includes a first upper corner, a first lower corner, and a scale section. The secondary scale includes a second upper corner, a second lower corner, and a sliding section. The first upper corner is fixedly connected to the top of the scale section, the first lower corner is fixedly connected to the bottom of the scale section, the second upper corner is fixedly connected to the top of the sliding section, and the second lower corner is fixedly connected to the bottom of the sliding section. The back of the scale section has a first sliding groove for the sliding section to slide and a cavity for storing the locking screw. The bottom of the second upper corner and the top of the second lower corner are provided with second sliding grooves for the scale section to slide. The first upper corner, the first lower corner, the second upper corner, and the second lower corner are all provided with through holes for the locking screw to pass through. The locking screw is provided with two fixing nuts adapted to the locking screw. The beneficial effects of this utility model are: convenient measurement and accurate measurement results.

[0004] Based on the above, the existing method of measuring the inner and outer diameters of nuts using vernier calipers generally involves first measuring the outer diameter of the nut, and then reversing the vernier caliper to measure the inner diameter of the nut. This involves many steps and affects the efficiency of measuring the inner and outer diameters of nuts. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides a tool for measuring the inner and outer diameters of nuts. This tool solves the problem that existing methods for measuring the inner and outer diameters of nuts using vernier calipers typically involve first measuring the outer diameter of the nut and then reversing the vernier caliper to measure the inner diameter, resulting in numerous steps and reduced efficiency in measuring the inner and outer diameters of nuts.

[0006] The purpose and function of this utility model, a tool for measuring the inner and outer diameters of nuts, are achieved by the following specific technical means:

[0007] A nut inner and outer diameter measuring tool includes a caliper body, a fixed caliper component, a first outer diameter plate, a scale plate, a horizontal connecting plate, a unified measuring mechanism, and a horizontal placement mechanism;

[0008] The caliper fixing component is fixedly connected to the left side of the caliper body;

[0009] The first outer diameter plate is fixedly connected to the lower right side of the fixed caliper piece;

[0010] The scale plate is a transparent acrylic plate structure with graduations, and the scale plate is fixedly connected to the front end of the caliper body;

[0011] The horizontal connecting plate is located below the caliper body;

[0012] The unified measuring mechanism is located on the outside of the caliper body;

[0013] The horizontal placement mechanism is positioned above the horizontal connecting plate.

[0014] Furthermore, the unified measuring mechanism includes: a movable caliper, a second outer diameter plate, and a measuring locking bolt;

[0015] The movable caliper is slidably connected to the outer right end of the caliper body;

[0016] The second outer diameter plate is fixedly connected to the lower left side of the movable caliper component;

[0017] The measuring locking bolt is threaded onto the top of the movable caliper.

[0018] Furthermore, the unified measuring mechanism also includes: a first inner diameter slider, a first connecting spring, a second inner diameter slider, and a second connecting spring;

[0019] The first inner diameter slider is slidably connected to the left side of the outer periphery of the caliper body;

[0020] The first connecting spring is fixedly connected to the right side of the first inner diameter slider, and the right end of the first connecting spring is fixedly connected to the movable caliper.

[0021] The second inner diameter slider is slidably connected to the right side of the outer periphery of the caliper body;

[0022] The second connecting spring is fixedly connected to the left side of the second inner diameter slider, and the left end of the second connecting spring is fixedly connected to the fixed caliper.

[0023] Furthermore, the unified measurement mechanism also includes: a supplementary light;

[0024] The fill light is an LED light strip structure, and the fill light is fixedly connected to the rear end of the scale plate.

[0025] Furthermore, the horizontal placement mechanism includes: a placement fixing plate, a placement guide, and a placement connecting spring;

[0026] The mounting plate is fixedly connected to the bottom of the caliper fixing component;

[0027] The placement guide is slidably connected to the lower inner side of the placement fixing plate, and the lower end of the placement guide is fixedly connected to the horizontal connecting plate.

[0028] The placement connecting spring is fixedly connected to the inner side of the placement fixing plate, and the lower end of the placement connecting spring is fixedly connected to the placement guide.

[0029] Furthermore, the horizontal placement mechanism also includes: a connecting slider, a support rod, and a support spring;

[0030] The placement connecting slider is slidably connected to the upper left side of the horizontal connecting plate;

[0031] The placement support rod consists of two sets of hinged connecting rods. The right end of the placement support rod is hinged to the horizontal connecting plate, and the left end of the placement support rod is hinged to the placement connecting slider.

[0032] The placement support spring is fixedly connected to the inner side of the horizontal connecting plate, and the right end of the placement support spring is fixedly connected to the placement connecting slider.

[0033] Compared with the prior art, the present invention has the following beneficial effects:

[0034] This invention, through the unified measurement mechanism, places the inner side of the nut outside the first inner diameter slider and the second inner diameter slider. When the second outer diameter plate is moved to the left, it causes the first inner diameter slider to move to the left. Once the first inner diameter slider is in place, the second and first outer diameter plates clamp the outer diameter of the nut. Then, under the action of the first and second connecting springs, the first and second inner diameter sliders also come into contact with the inner diameter of the nut. This allows for simultaneous measurement of the inner and outer diameters of the nut, reducing operational steps, facilitating the operator's work, and improving the efficiency of nut measurement.

[0035] This invention utilizes a horizontal placement mechanism. A downward-moving guide component moves the horizontal connecting plate downwards, placing the nut on the outside of the support rod. The support rod then temporarily positions the nut. The horizontal connecting plate is then released, and under the action of the connecting spring, the first and second inner diameter sliders insert into the inside of the nut. Simultaneously, the horizontal connecting plate ensures the nut is placed horizontally, preventing the measuring personnel from manually holding the nut during measurement. This facilitates the measuring personnel's use, ensures the nut's horizontal placement, and improves the accuracy of the nut measurement results. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0037] Figure 2 This is a schematic diagram of the second inner diameter slider structure of this utility model.

[0038] Figure 3 This is a schematic diagram of the unified measuring mechanism structure of this utility model.

[0039] Figure 4 This is a schematic diagram of the horizontal placement mechanism of this utility model.

[0040] Figure 5 This is a schematic diagram of the support rod placement structure of this utility model.

[0041] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0042] 1. Caliper body; 101. Moving caliper component; 102. Second outer diameter plate; 103. Measuring locking bolt; 104. First inner diameter slider; 105. First connecting spring; 106. Second inner diameter slider; 107. Second connecting spring; 108. Supplementary light; 2. Fixed caliper component; 3. First outer diameter plate; 4. Scale plate; 5. Horizontal connecting plate; 501. Placement of fixing plate; 502. Placement of guide component; 503. Placement of connecting spring; 504. Placement of connecting slider; 505. Placement of support rod; 506. Placement of support spring. Detailed Implementation

[0043] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.

[0044] Example 1:

[0045] As attached Figure 1 To be continued Figure 3 As shown:

[0046] This utility model provides a nut inner and outer diameter measuring tool, including a caliper body 1, a fixed caliper part 2, a first outer diameter plate 3, a scale plate 4, a horizontal connecting plate 5, and a unified measuring mechanism;

[0047] The caliper fixing component 2 is fixedly connected to the left side of the caliper body 1;

[0048] The first outer diameter plate 3 is fixedly connected to the lower right side of the fixed caliper part 2;

[0049] The scale plate 4 is a transparent acrylic plate structure with scales, and the scale plate 4 is fixedly connected to the front end of the caliper body 1;

[0050] The horizontal connecting plate 5 is located below the caliper body 1;

[0051] The uniform measuring mechanism is set on the outside of the caliper body 1.

[0052] The unified measuring mechanism includes: a movable caliper 101, a second outer diameter plate 102, a measuring locking bolt 103, a first inner diameter slider 104, a first connecting spring 105, a second inner diameter slider 106, a second connecting spring 107, and a supplementary light 108.

[0053] The movable caliper component 101 is slidably connected to the outer right end of the caliper body 1;

[0054] The second outer diameter plate 102 is fixedly connected to the lower left side of the movable caliper part 101;

[0055] The measuring locking bolt 103 is threadedly connected above the movable caliper part 101;

[0056] The first inner diameter slider 104 is slidably connected to the left side of the outer periphery of the caliper body 1;

[0057] The first connecting spring 105 is fixedly connected to the right side of the first inner diameter slider 104, and the right end of the first connecting spring 105 is fixedly connected to the movable caliper part 101.

[0058] The second inner diameter slider 106 is slidably connected to the right side of the outer periphery of the caliper body 1;

[0059] The second connecting spring 107 is fixedly connected to the left side of the second inner diameter slider 106, and the left end of the second connecting spring 107 is fixedly connected to the fixed caliper part 2.

[0060] The fill light 108 is an LED light strip structure, and the fill light 108 is fixedly connected to the rear end of the scale plate 4.

[0061] In use, when it is necessary to measure the inner and outer diameters of the nut, the inner side of the nut is positioned outside the first inner diameter slider 104 and the second inner diameter slider 106. Then, the second outer diameter plate 102 is moved to the left. This movement causes the first inner diameter slider 104 to move to the left. Once the first inner diameter slider 104 is in position, the second outer diameter plate 102 and the first outer diameter plate 106 clamp the outer diameter of the nut. At this point, under the action of the first connecting spring 105 and the second connecting spring 107, the first inner diameter… The slider 104 and the second inner diameter slider 106 are also in contact with the inner diameter of the nut, thus realizing the simultaneous measurement of the inner and outer diameters of the nut, reducing the operation steps. At this time, the distance between the second outer diameter plate 102 and the first outer diameter plate 3 is the outer diameter of the nut, and the distance between the first inner diameter slider 104 and the second inner diameter slider 106 is the inner diameter of the nut. At the same time, when measuring in a relatively dim environment, the supplementary light 108 is turned on, which realizes the supplementary lighting operation of the scale plate 4, making it convenient for the measuring personnel to observe.

[0062] Example 2:

[0063] This utility model provides a tool for measuring the inner and outer diameters of nuts, based on Embodiment 1, such as... Figures 1 to 5 As shown, it also includes a horizontal placement mechanism, which is positioned above the horizontal connecting plate 5.

[0064] The horizontal placement mechanism includes: a placement fixing plate 501, a placement guide 502, a placement connecting spring 503, a placement connecting slider 504, a placement support rod 505, and a placement support spring 506.

[0065] The fixing plate 501 is fixedly connected to the bottom of the fixing caliper part 2;

[0066] The placement guide 502 is slidably connected to the lower inner side of the placement fixing plate 501, and the lower end of the placement guide 502 is fixedly connected to the horizontal connecting plate 5.

[0067] The placement connecting spring 503 is fixedly connected to the inner side of the placement fixing plate 501, and the lower end of the placement connecting spring 503 is fixedly connected to the placement guide 502.

[0068] The connecting slider 504 is placed on the upper left side of the horizontal connecting plate 5;

[0069] The support rod 505 consists of two sets of hinged connecting rods. The right end of the support rod 505 is hinged to the horizontal connecting plate 5, and the left end of the support rod 505 is hinged to the connecting slider 504.

[0070] The support spring 506 is fixedly connected to the inner side of the horizontal connecting plate 5, and the right end of the support spring 506 is fixedly connected to the connecting slider 504.

[0071] In use, when it is necessary to measure the inner and outer diameters of the nut, the guide 502 is moved downwards. The downward movement of the guide 502 causes the horizontal connecting plate 5 to move downwards, and then the nut is placed on the outside of the support rod 505. At this time, the support rod 505 temporarily positions the nut. The horizontal connecting plate 5 is then released. Under the action of the connecting spring 503, the first inner diameter slider 104 and the second inner diameter slider 106 are inserted into the inside of the nut. At the same time, the horizontal connecting plate 5 ensures that the nut is placed horizontally, avoiding the need for the measuring personnel to hold the nut during the measurement process. This facilitates the use of the measuring personnel, ensures the horizontal placement of the nut, and improves the accuracy of the nut measurement results.

[0072] The following points should be noted in this article:

[0073] 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in general design.

[0074] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0075] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A nut inner and outer diameter measuring tool, comprising a caliper body (1), a caliper fixing component (2), a first outer diameter plate (3), a scale plate (4), a horizontal connecting plate (5), a unified measuring mechanism, and a horizontal placement mechanism; characterized in that: The fixed caliper part (2) is fixedly connected to the left side of the caliper body (1); the first outer diameter plate (3) is fixedly connected to the lower right side of the fixed caliper part (2); the scale plate (4) is a transparent acrylic plate structure with scale, and the scale plate (4) is fixedly connected to the front end of the caliper body (1); the horizontal connecting plate (5) is set below the caliper body (1); the unified measuring mechanism is set on the outside of the caliper body (1); and the horizontal placement mechanism is set above the horizontal connecting plate (5).

2. The nut inner and outer diameter measuring tool as described in claim 1, characterized in that: The unified measuring mechanism includes: a movable caliper (101), a second outer diameter plate (102), and a measuring locking bolt (103); the movable caliper (101) is slidably connected to the right side of the outer side of the caliper body (1); the second outer diameter plate (102) is fixedly connected to the lower left side of the movable caliper (101); and the measuring locking bolt (103) is threadedly connected to the upper part of the movable caliper (101).

3. The nut inner and outer diameter measuring tool as described in claim 1, characterized in that: The unified measuring mechanism further includes: a first inner diameter slider (104), a first connecting spring (105), a second inner diameter slider (106), and a second connecting spring (107); the first inner diameter slider (104) is slidably connected to the left side of the outer periphery of the caliper body (1); the first connecting spring (105) is fixedly connected to the right side of the first inner diameter slider (104), and the right end of the first connecting spring (105) is fixedly connected to the movable caliper component (101); the second inner diameter slider (106) is slidably connected to the right side of the outer periphery of the caliper body (1); the second connecting spring (107) is fixedly connected to the left side of the second inner diameter slider (106), and the left end of the second connecting spring (107) is fixedly connected to the fixed caliper component (2).

4. The nut inner and outer diameter measuring tool as described in claim 1, characterized in that: The unified measuring mechanism also includes: a supplementary light (108); the supplementary light (108) is an LED light strip structure, and the supplementary light (108) is fixedly connected to the rear end of the scale plate (4).

5. The nut inner and outer diameter measuring tool as described in claim 1, characterized in that: The horizontal placement mechanism includes: a placement fixing plate (501), a placement guide (502), and a placement connecting spring (503); the placement fixing plate (501) is fixedly connected to the lower part of the fixing caliper (2); the placement guide (502) is slidably connected to the lower inner side of the placement fixing plate (501), and the lower end of the placement guide (502) is fixedly connected to the horizontal connecting plate (5); the placement connecting spring (503) is fixedly connected to the inner side of the placement fixing plate (501), and the lower end of the placement connecting spring (503) is fixedly connected to the placement guide (502).

6. The nut inner and outer diameter measuring tool as described in claim 1, characterized in that: The horizontal placement mechanism further includes: a placement connecting slider (504), a placement support rod (505), and a placement support spring (506); the placement connecting slider (504) is slidably connected to the upper left side of the horizontal connecting plate (5); the placement support rod (505) consists of two sets of hinged connecting rods, the right end of the placement support rod (505) is hinged to the horizontal connecting plate (5), and the left end of the placement support rod (505) is hinged to the placement connecting slider (504); the placement support spring (506) is fixedly connected to the inner side of the horizontal connecting plate (5), and the right end of the placement support spring (506) is fixedly connected to the placement connecting slider (504).

Citation Information

Patent Citations

  • Vernier caliper

    CN207248025U