Vernier caliper auxiliary measuring device and vernier caliper
By adding widening plates and fastening screws to the base of the vernier caliper depth ruler to widen the width of the depth ruler base, the problem of large measurement errors in the prior art is solved and a higher measurement accuracy is achieved.
Patent Information
- Application Number
- CN202422046158.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-22
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-08-22
AI Technical Summary
When existing vernier calipers measure holes larger than the width of the depth ruler base, the depth ruler base cannot be close to the end face of the workpiece hole, resulting in large measurement errors.
Add a widening plate to the depth rule base of the vernier caliper, secured by fastening screws, widen the end face width of the depth rule base, and equipped with horizontal bubbles to ensure accurate measurement.
It is realized that when measuring large-diameter objects, they can be placed horizontally on the end surface of the object to be measured, reducing measurement errors and improving measurement accuracy.
Smart Images
Figure CN223077571U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of measuring instruments, in particular to an auxiliary measuring device for a vernier caliper and a vernier caliper. Background Art
[0002] A vernier caliper is a commonly used instrument for measuring length in industry. It consists of a main scale and a vernier that can slide on the main scale. When viewed from the back, the vernier is a whole. There is a spring plate between the vernier and the main scale, and the elastic force of the spring plate is used to make the vernier close to the main scale. There is a fastening screw on the upper part of the vernier, which can fix the vernier at any position on the main scale. Both the main scale and the vernier have measuring jaws. The inner measuring jaws can be used to measure the width of a groove and the inner diameter of a pipe, and the outer measuring jaws can be used to measure the thickness of a part and the outer diameter of a pipe. The depth gauge is connected to the vernier and can measure the depth of a groove and a cylinder. When measuring the depth, the depth gauge part of the caliper is placed into the aperture of the workpiece, and the end face of the caliper base is closely against the end face of the workpiece hole, keeping the main scale parallel to the center line of the measured hole.
[0003] For the existing vernier caliper, the width of the depth gauge base is fixed to the width of the caliper main scale. When the diameter of the test hole is greater than the width of the depth gauge base and measuring the depth at different positions of the workpiece hole, the depth gauge base cannot be closely against the end face of the workpiece hole, resulting in a relatively large measurement error. Summary of the Utility Model
[0004] In view of the above-mentioned disadvantages of the prior art, the purpose of the present utility model is to provide an auxiliary measuring device for a vernier caliper and a vernier caliper, by widening the width of the depth gauge base to reduce the measurement error.
[0005] The technical solution of the present utility model is as follows:
[0006] According to the first aspect of the present application, an auxiliary measuring device for a vernier caliper is provided, including a widening plate and a fastening screw. An installation hole is penetrated through the widening plate, and a threaded hole is provided on the widening plate corresponding to the installation hole. The fastening screw is matched with the threaded hole to fix the vernier caliper in the installation hole, wherein the end face of the depth gauge base of the vernier caliper is flush with the lower end face of the widening plate.
[0007] Preferably, in the above-mentioned auxiliary measuring device for a vernier caliper, a horizontal bubble is further included, and the horizontal bubble is horizontally arranged on the upper end face of the widening plate.
[0008] Preferably, in the above-mentioned auxiliary measuring device for a vernier caliper, the widening plate has opposite first and second end faces, and first notches are provided on both the first end face and the second end face.
[0009] Preferably, in the above vernier caliper auxiliary measuring device, a width-increasing plate is further included. The width-increasing plate has opposite third and fourth end faces. A protrusion is provided on the third end face, and the protrusion is matched with the first notch. The width-increasing plate is detachably arranged on the first end face or the second end face through the cooperation of the protrusion and the first notch.
[0010] Preferably, in the above vernier caliper auxiliary measuring device, multiple width-increasing plates are provided.
[0011] Preferably, in the above vernier caliper auxiliary measuring device, a second notch is provided on the fourth end face, and the shape and size of the second notch are the same as those of the first notch.
[0012] Preferably, in the above vernier caliper auxiliary measuring device, two threaded holes are provided, and the two threaded holes are arranged in parallel on the width-increasing plate.
[0013] According to the second aspect of the present application, a vernier caliper is provided, including the above-mentioned vernier caliper auxiliary measuring device. The vernier caliper auxiliary measuring device is assembled on the depth gauge base of the vernier caliper, and the end face of the depth gauge base of the vernier caliper is flush with the lower end face of the width-increasing plate.
[0014] Compared with the prior art, the beneficial effect of the present utility model lies in:
[0015] By adding a width-increasing plate to the depth gauge base of the vernier caliper, the present utility model broadens the width of the end face of the depth gauge base of the vernier caliper, so that when the vernier caliper measures the depths of different positions of a larger-diameter object (the diameter of the object is greater than the original width of the end face of the depth gauge base of the vernier caliper), it can be horizontally placed on the end face of the object to be measured, making the measurement and reading more convenient and the measurement degree more accurate. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can be obtained based on the structures shown in these drawings without creative efforts.
[0017] Figure 1 It is a schematic diagram of a vernier caliper in a depth measurement state according to the prior art.
[0018] Figure 2 It is a three-dimensional structure diagram of a vernier caliper auxiliary measuring device provided by an embodiment of the present application.
[0019] Figure 3The front view of an auxiliary measuring device for a vernier caliper provided by an embodiment of the present application.
[0020] Figure 4 The schematic diagram of the auxiliary measuring device for a vernier caliper provided by an embodiment of the present application assembled on the vernier caliper.
[0021] Figure 5 For Figure 2 The enlarged schematic diagram of part A in
[0022] Figure 6 For Figure 2 The enlarged schematic diagram of part B in
[0023] Figure 7 The structural diagram of a vernier caliper provided by an embodiment of the present application.
[0024] In the figure, 1 is the vernier caliper, 2 is the measured part, 3 is the widened plate, 4 is the fastening screw, 5 is the mounting hole, 6 is the threaded hole, 7 is the horizontal bubble, 8 is the first notch, 9 is the width-increasing plate, 91 is the third end face, 92 is the fourth end face, 10 is the protrusion, 11 is the second notch, and 12 is the auxiliary measuring device for the vernier caliper. Specific implementation manners
[0025] The following illustrates the implementation manners of the present utility model through specific examples. Those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification. The present utility model can also be implemented or applied through different specific implementation manners. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present utility model. It should be noted that, without conflict, the following embodiments and the features in the embodiments can be combined with each other.
[0026] In the description of the present utility model, unless otherwise specified, "a plurality of" means two or more; the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.
[0027] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "connected" and "connected to" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0028] Now, the present utility model will be further described in conjunction with the accompanying drawings of the specification.
[0029] Figure 1 It is a schematic diagram of a vernier caliper in a depth measurement state according to the prior art. As Figure 1 shown, when the vernier caliper 1 measures the depth of the measured part 2, the end face of the depth scale base of the vernier caliper 1 is closely flush with the end face of the measured part 2, the depth scale extends and contacts the bottom of the measured part 2, and then the value is read. It should be noted that Figure 1 the shown vernier caliper 1 is a digital display vernier caliper. Understandably, the vernier caliper 1 can also be other types of vernier calipers, such as a conventional non-digital display vernier caliper. This embodiment is only an example here and is not a limitation to the present application.
[0030] As Figure 1 shown, the width of the end face of the depth scale base of the vernier caliper 1 is the width of the scale body, and this width is small, which is suitable for measuring the measured part 2 with a diameter smaller than the width of the scale body. Once the diameter of the measured part 2 is greater than the width of the end face of the depth scale base of the vernier caliper 1 and the bottom of the measured part 2 is an uneven bottom surface, when measuring the depth of a certain position point of the measured part 2, the end face of the depth scale base of the vernier caliper 1 cannot contact the end face of the measured part 2, resulting in measurement errors.
[0031] Based on this, the embodiment of the present application provides an auxiliary measurement device for a vernier caliper, which can make it contact and be flush with the end face of the measured part with a large diameter by increasing the width of the end face of the depth scale base of the vernier caliper 1, avoiding measurement errors.
[0032] Figure 2 It is a three-dimensional structure diagram of an auxiliary measurement device for a vernier caliper provided by the embodiment of the present application. Figure 3 It is a front view of an auxiliary measurement device for a vernier caliper provided by the embodiment of the present application. As Figure 2 and Figure 3As shown, the vernier caliper auxiliary measuring device includes a widening plate 3 and a fastening screw 4. An installation hole 5 is penetratingly provided on the widening plate 3, and a threaded hole 6 is provided on the widening plate 3 corresponding to the installation hole 5. The fastening screw 4 cooperates with the threaded hole 6 to fix the vernier caliper 1 in the installation hole. The end face of the depth scale base of the vernier caliper 1 is flush with the lower end face of the widening plate 3. Among them, the schematic diagram of the assembly of the vernier caliper auxiliary measuring device on the vernier caliper is as Figure 4 shown.
[0033] In this embodiment, the vernier caliper auxiliary measuring device can be directly assembled on the existing vernier caliper 1. When the vernier caliper 1 is assembled, the depth scale base is made to pass through the installation hole 5, and the end face of the depth scale base is made flush with the lower end face of the widening plate 3. Subsequently, the fastening screw 4 cooperates with the threaded hole 6, and the vernier caliper 1 is fixed by the fastening screw 4. At this time, the end face of the depth scale base of the vernier caliper 1 is widened, that is, the width of this end face of the depth scale base of the vernier caliper 1 becomes the width of the widening plate 3. Thus, after adding this vernier caliper auxiliary measuring device, when the vernier caliper 1 is used for depth measurement of a workpiece with a larger diameter, the lower cross-section of the widening plate 3 can be made to contact and be flush with the end face of the workpiece, thereby reducing the measurement error.
[0034] In some embodiments, as Figure 2 shown, two threaded holes 6 are provided. The two threaded holes 6 are arranged in parallel on the widening plate 3. Understandably, two corresponding fastening screws 4 are also provided. By using the two fastening screws 4, it can be ensured that the vernier caliper auxiliary measuring device can be assembled on the vernier caliper 1 more stably. It should be noted that the number of the threaded holes 6 and the fastening screws 4 is adapted, and the number can be determined according to the designed width of the widening plate 3. This is only an example here in this embodiment and is not a limitation to this application. In certain embodiments, the number of the threaded holes 6 and the fastening screws 4 can also be more, for example, it can be set to 3, 4, 6, etc. In the case of setting multiple threaded holes 6 and fastening screws 4, the layout of the multiple threaded holes 6 can be a uniform array layout.
[0035] In some embodiments, as Figure 2 shown, the vernier caliper auxiliary measuring device further includes a horizontal bubble 8. The horizontal bubble 8 is horizontally arranged on the upper end face of the widening plate 3.
[0036] In this embodiment, by providing the horizontal bubble 8, it can enable the auxiliary measurer to observe whether the widening plate 3 is horizontal during the measurement process of the vernier caliper. For example, when the workpiece is in a horizontal placement state and depth measurement is carried out using the vernier caliper, adjust the vernier caliper equipped with this vernier caliper auxiliary measuring device. Only when the horizontal bubble 8 shows horizontal, stop the adjustment and take the reading, thereby improving the measurement accuracy.
[0037] Figure 5 and Figure 6 is Figure 2 The partial enlarged views of positions A and B in Figure 2 、 Figure 5 and Figure 6 As shown. The widened plate 3 has opposite first end face 31 and second end face 32, and first notches 8 are arranged on both the first end face 31 and the second end face 32. The vernier caliper auxiliary measuring device further includes a widening plate 9, the widening plate 9 has opposite third end face 91 and fourth end face 92, a protrusion 10 is arranged on the third end face 91, the protrusion 10 is matched with the first notch 8, and the widening plate 3 is detachably arranged on the first end face 31 or the second end face 32 through the cooperation of the protrusion 10 and the first notch 8.
[0038] In this embodiment, the protrusion 10 and the first notch 8 can be implemented as a mortise and tenon structure. Through the protrusion 10 and the first notch 8, the widening plate 9 can be assembled on the first end face 31 and / or the second end face 32 according to the actual size of the measured part, so as to further increase the depth measurement width of the vernier caliper and improve its applicable range. The widening plates 9 are provided in multiple numbers, and it is selected whether to connect with the widened plate 3 according to the actual situation. In actual implementation, the widening plate 9 is not always connected to the widened plate 3. Only when measuring some ultra-large-caliber measured parts, the assembly of the widening plate 9 is carried out.
[0039] In some embodiments, as Figure 2 shown, a second notch 11 is arranged on the fourth end face 92, and the shape and size of the second notch 11 are the same as those of the first notch 8. Through the design of the second notch 11, when a widening plate 9 is assembled on the widened plate 3, the widening plates 9 can be infinitely added. In theory, it can be applicable to the measurement of measured parts with any caliber.
[0040] Figure 7 This is a structural diagram of a vernier caliper provided by an embodiment of the present application. The embodiment of the present application also provides a vernier caliper, including the vernier caliper auxiliary measuring device 12 described in any of the above embodiments. The vernier caliper auxiliary measuring device 12 is assembled on the depth scale base of the vernier caliper 1, and the end face of the depth scale base of the vernier caliper 1 is flush with the lower end face of the widened plate 3. The working principle and beneficial effects of this vernier caliper have been described in the previous embodiments and will not be elaborated here.
[0041] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and the description of the present invention.
Claims
1. An auxiliary measuring device for a vernier caliper, characterized in that, It includes a widened plate and fastening screws. An installation hole is penetrated through the widened plate, and a threaded hole is provided on the widened plate corresponding to the installation hole. The fastening screw cooperates with the threaded hole to fix the vernier caliper in the installation hole, wherein the end face of the depth gauge base of the vernier caliper is flush with the lower end face of the widened plate.
2. The vernier caliper auxiliary measuring device according to claim 1, wherein It further includes a horizontal bubble, and the horizontal bubble is horizontally arranged on the upper end face of the widened plate.
3. The vernier caliper auxiliary measuring device according to claim 1, characterized in that, The widened plate has opposite first end face and second end face, and first notches are provided on both the first end face and the second end face.
4. The vernier caliper auxiliary measuring device according to claim 3, wherein, It further includes a width-increasing plate. The width-increasing plate has opposite third end face and fourth end face. A protrusion is provided on the third end face, and the protrusion matches the first notch. The width-increasing plate is detachably arranged on the first end face or the second end face by the cooperation of the protrusion and the first notch.
5. The vernier caliper auxiliary measuring device according to claim 4, characterized in that, A plurality of the width-increasing plates are provided.
6. The vernier caliper auxiliary measuring device according to claim 4, wherein, A second notch is provided on the fourth end face, and the shape and size of the second notch are the same as those of the first notch.
7. The vernier caliper auxiliary measuring device according to claim 1, wherein, The threaded holes are provided in two numbers, and the two threaded holes are arranged in parallel on the widened plate.
8. A vernier caliper, characterized in that, It includes the vernier caliper auxiliary measuring device according to any one of claims 1 to 7. The vernier caliper auxiliary measuring device is assembled on the depth gauge base of the vernier caliper, and the end face of the depth gauge base of the vernier caliper is flush with the lower end face of the widened plate.