Caliper tool for bench worker

Abstract

The caliper tool comprises a main scale, the outer portion of the main scale is connected with a vernier auxiliary scale in a sliding mode, the outer portion of the vernier auxiliary scale is fixedly connected with a limiting plate, the outer portion of the limiting plate is provided with a limiting opening, the back face of the limiting plate is fixedly connected with a hollow plate, and the hollow plate is fixedly connected with the vernier auxiliary scale. A rotating assembly is arranged at the bottom of the inner wall of the hollow plate, a driving assembly is arranged on the surface of the inner wall of the hollow plate, a sliding opening is formed in one side of the hollow plate, a second fixing bolt is arranged on the driving assembly, and a measuring needle is arranged on one side of the driving assembly. Through cooperative use of the limiting port, the hollow plate, the rotating assembly, the driving assembly, the sliding port and other structures, the function of adjusting the position of the measuring needle is achieved, the situation that the measuring needle cannot measure due to different positions of hole grooves in different workpieces in the measuring process is avoided, the adaptability of the caliper tool is improved, and the measuring efficiency is improved. And the application range of the caliper tool is widened.

Description

Technical Field

[0001] The utility model relates to the technical field of caliper tools, in particular to a caliper tool for fitters. Background Art

[0002] A caliper is a measuring tool for measuring internal and external dimensions. It is mainly used for accurate measurement and checking the size, diameter, depth, etc. of an object. A caliper usually consists of two movable arms with a hook-like structure or measuring surface at the end of the arm. By manually rotating the spiral wire, the distance and position of the two arms can be controlled to achieve the purpose of measuring and comparing the size of the object. Calipers are divided into two categories according to the measuring range: inner diameter calipers and outer diameter calipers. Inner diameter calipers are used to measure the internal size, aperture, depth, etc. of an object; outer diameter calipers are used to measure the external size, diameter, etc. of an object. Common calipers include vernier calipers, micrometers, digital calipers, etc.

[0003] In the Chinese patent with the announcement number CN219798124U, a new type of vernier caliper is disclosed, including a main scale, a digital display vernier and multiple sets of measuring claws, the digital display vernier is slidably mounted on the main scale, the front end of the main scale and the bottom surface of the digital display vernier are fixedly installed with measuring claw seats, the upper parts of the multiple sets of measuring claws are provided with connectors for plugging with the measuring claw seats, the measuring claw seats and the measuring claws are connected into one body through the connectors, and the measuring claws include a first measuring claw, a second measuring claw and a third measuring claw. The new type of vernier caliper, by adjusting the nut and the measuring needle, enables the caliper to measure the inner hole and the bottom of the outer circular groove of some workpieces, increases the measuring range of the caliper, and meets the measurement of workpieces of different specifications. At the same time, when the measuring needle is worn, the measuring needle can be replaced in time, and the only wearing part is the measuring needle, and there is no need to replace the whole set of calipers, saving costs.

[0004] The above scheme has the following deficiencies: in actual use, the scheme does not have the function of adjusting the position of the stylus, resulting in the stylus being unable to measure the hole slots due to the different positions of the hole slots on different workpieces, resulting in low adaptability of the caliper tool and reducing the scope of use of the caliper tool. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and provides a caliper tool for fitters.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a caliper tool for fitter, comprising a main scale, a vernier sub-scale is slidably connected to the outside of the main scale, a limit plate is fixedly connected to the outside of the vernier sub-scale, a limit opening is provided on the outside of the limit plate, a hollow plate is fixedly connected to the back of the limit plate, a rotating assembly is provided at the bottom of the inner wall of the hollow plate, a driving assembly is provided on the surface of the inner wall of the hollow plate, a sliding opening is provided on one side of the hollow plate, two fixing bolts are provided on the driving assembly, a measuring needle is provided on one side of the driving assembly, a plurality of threaded grooves are provided on the outside of the measuring needle, the threaded hole is adapted to the measuring needle, one side of the fixing bolt is threaded through one of the threaded holes on the measuring needle, and the top of the measuring needle passes through the limit opening.

[0007] As a further description of the above technical solution:

[0008] The rotating assembly comprises a worm rotatably connected to the top of the inner wall of the hollow plate, the bottom end of the worm is fixedly connected to a driving rod, and the driving rod is in a T-shape.

[0009] As a further description of the above technical solution:

[0010] The driving assembly comprises a rotating shaft rotatably connected to one side of the inner wall of the hollow plate, and a worm gear is sleeved on the outer portion of the rotating shaft.

[0011] As a further description of the above technical solution:

[0012] One end of the rotating shaft is fixedly connected to a threaded rod, the outer surface of the threaded rod is threadedly connected to a connecting block, the top of the connecting block is fixedly connected to a mounting frame, the connecting block is T-shaped, one side of the connecting block passes through the limiting opening and the two sides are slidably connected to the two sides of the inner wall of the limiting opening.

[0013] As a further description of the above technical solution:

[0014] A fixing bolt 1 is threadedly inserted into the upper surface of the vernier secondary scale.

[0015] As a further description of the above technical solution:

[0016] A mounting groove is provided on one side of the main scale, a connecting strip is rotatably connected inside the mounting groove, a secondary scale is rotatably connected outside the connecting strip, a placement groove is provided on one side of the secondary scale that is attached to the main scale, and the shapes of the two sides of the connecting strip are semicircular.

[0017] As a further description of the above technical solution:

[0018] Two threaded holes are provided on one side of the main scale, and a connecting bolt is threadedly passed through one of the threaded holes.

[0019] The utility model has the following beneficial effects:

[0020] 1. Compared with the prior art, the caliper tool for fitters realizes the function of adjusting the position of the measuring needle through the coordinated use of structures such as the limit opening, the hollow plate, the rotating assembly, the driving assembly and the sliding opening, thereby avoiding the situation in which the measuring needle cannot measure due to the different positions of the holes and grooves on different workpieces during measurement, increasing the adaptability of the caliper tool and improving the scope of use of the caliper tool.

[0021] 2. Compared with the prior art, the caliper tool for fitters, through the coordinated use of the mounting groove 1, the connecting strip, the auxiliary ruler, the placement groove, the threaded hole and the connecting bolt, can quickly fold the caliper tool when the caliper tool is not in use, thereby facilitating the storage of the caliper tool and improving the practicality of the caliper tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a caliper tool for fitters proposed by the utility model;

[0023] Figure 2 This is a schematic diagram of the hollow plate structure of a caliper tool for fitters proposed by the utility model;

[0024] Figure 3 This is a schematic diagram of the main scale structure of a caliper tool for fitters proposed by the utility model;

[0025] Figure 4 for Figure 3 The local magnification of point A shown in FIG;

[0026] Figure 5 for Figure 3 A local enlargement of point B is shown in FIG.

[0027] Legend:

[0028] 1. Main scale; 2. Vernier sub-scale; 3. Limit plate; 4. Limit opening; 5. Hollow plate; 6. Slide opening; 7. Two fixing bolts; 8. Probe; 9. Threaded groove; 10. Worm; 11. Drive rod; 12. Rotating shaft; 13. Worm gear; 14. Threaded rod; 15. Connecting block; 16. Mounting frame; 17. One fixing bolt; 18. One mounting groove; 19. Connecting strip; 20. Sub-scale; 21. Threaded hole; 22. Connecting bolt; 23. Placement groove. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0030] Reference Figure 1-5 The utility model provides a caliper tool for fitter: it includes a main scale 1, a vernier sub-scale 2 is slidably connected to the outside of the main scale 1, a limit plate 3 is fixedly connected to the outside of the vernier sub-scale 2, a limit opening 4 is provided on the outside of the limit plate 3, a hollow plate 5 is fixedly connected to the back of the limit plate 3, a rotating assembly is provided at the bottom of the inner wall of the hollow plate 5, a driving assembly is provided on the surface of the inner wall of the hollow plate 5, a sliding opening 6 is provided on one side of the hollow plate 5, a fixing bolt 7 is provided on the driving assembly, a measuring needle 8 is provided on one side of the driving assembly, a plurality of thread grooves 9 are provided on the outside of the measuring needle 8, the thread groove 9 is adapted to the measuring needle 8, a thread on one side of the fixing bolt penetrates into one of the thread grooves 9 on the measuring needle 8, and the top of the measuring needle 8 penetrates the limit opening 4, and the rotating assembly is used to drive the driving assembly to rotate, so that the driving assembly drives the measuring needle 8 to move in the limit opening 4.

[0031] The rotating assembly includes a worm 10 rotatably connected to the top of the inner wall of the hollow plate 5 , and a driving rod 11 is fixedly connected to the bottom end of the worm 10 . The driving rod 11 is T-shaped, and one end of the driving rod 11 passes through the outside of the hollow plate 5 .

[0032] The driving assembly includes a rotating shaft 12 rotatably connected to one side of the inner wall of the hollow plate 5, a worm gear 13 is sleeved on the outside of the rotating shaft 12, the worm gear 13 is meshed with the worm 10, one end of the rotating shaft 12 is fixedly connected to a threaded rod 14, the outer surface of the threaded rod 14 is threadedly connected to a connecting block 15, the top of the connecting block 15 is fixedly connected to a mounting frame 16, the connecting block 15 is T-shaped, one side of the connecting block 15 passes through the limit opening 4 and the two sides are slidably connected to the two sides of the inner wall of the limit opening 4, a fixing bolt 7 is arranged at the bottom of the connecting block 15, and the measuring probe 8 slides through the mounting frame 16.

[0033] A fixing bolt 17 is threadedly inserted into the upper surface of the vernier secondary scale 2.

[0034] A mounting groove 18 is provided on one side of the main scale 1, a connecting strip 19 is rotatably connected inside the mounting groove 18, a sub-scale 20 is rotatably connected outside the connecting strip 19, a placement groove 23 is provided on the side of the sub-scale 20 that is attached to the main scale 1, and the shapes of the two sides of the connecting strip 19 are semicircular, and the connecting strip 19 is rotatably connected inside the placement groove 23.

[0035] Two threaded holes 21 are formed on one side of the main scale 1 . A connecting bolt 22 is threadedly passed through one of the threaded holes 21 . One end of the connecting bolt 22 passes through the connecting bar 19 .

[0036] Working principle: When it is necessary to measure the hole groove on the workpiece, first rotate the fixing bolt 17 to allow the vernier scale 2 to slide on the main scale 1 until the distance between the vernier scale 2 and one side of the inner wall of the main scale 1 is enough to put the workpiece down. Then push the vernier scale 2 to make one side of it touch the workpiece, then rotate the fixing bolt 17 to fix the vernier scale 2, so as to clamp and fix the workpiece.

[0037] Then, the worm 10 is driven to rotate by rotating the driving rod 11, so that the worm 10 drives the worm wheel 13 and the rotating shaft 12 to rotate synchronously, so that the rotating shaft 12 drives the threaded rod 14 to rotate, and then the connecting block 15 drives the installation frame 16 to move, so that the installation frame 16 can drive the measuring needle 8 to move along the sliding mouth 6 inside the limiting mouth 4 until the position of the measuring needle 8 is consistent with the position of the hole groove on the workpiece, and then the fixing bolt 7 is rotated to remove the fixing of the measuring needle 8, and then the measuring needle 8 is pushed to move, and the measuring needle 8 can measure the bottom of the hole groove;

[0038] When the main scale 1 and the auxiliary scale 20 need to be folded together, the connecting bolt 22 on one of them is removed by rotating to release the fixation of the connecting strip 19, and then the auxiliary scale 20 is rotated to make one side of the auxiliary scale 20 fit with one side of the main scale 1. At this time, the connecting bolt 22 is screwed into the connecting strip 19 through another threaded hole 21 to fix the connecting strip 19, so that the main scale 1 and the auxiliary scale 20 can be folded together, and the connecting bolt 22 is rotated again to remove the main scale 1 and the auxiliary scale 20 can be unfolded.

[0039] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A caliper tool for fitters, comprising a main scale (1), characterized in that: The main scale (1) is slidably connected to the vernier sub-scale (2) on the outside, the vernier sub-scale (2) is fixedly connected to a limit plate (3) on the outside, a limit opening (4) is provided on the outside of the limit plate (3), a hollow plate (5) is fixedly connected to the back of the limit plate (3), a rotating assembly is provided at the bottom of the inner wall of the hollow plate (5), a driving assembly is provided on the surface of the inner wall of the hollow plate (5), a sliding opening (6) is provided on one side of the hollow plate (5), two fixing bolts (7) are provided on the driving assembly, a measuring needle (8) is provided on one side of the driving assembly, and a plurality of threaded grooves (9) are provided on the outside of the measuring needle (8).

2. A caliper tool for fitter according to claim 1, characterized in that: The rotating assembly comprises a worm (10) rotatably connected to the top of the inner wall of the hollow plate (5), and the bottom end of the worm (10) is fixedly connected to a driving rod (11).

3. A caliper tool for fitter according to claim 1, characterized in that: The driving assembly comprises a rotating shaft (12) rotatably connected to one side of the inner wall of the hollow plate (5), and a worm gear (13) is sleeved on the outside of the rotating shaft (12).

4. A caliper tool for fitter according to claim 3, characterized in that: One end of the rotating shaft (12) is fixedly connected to a threaded rod (14), the outer surface of the threaded rod (14) is threadedly connected to a connecting block (15), and the top of the connecting block (15) is fixedly connected to a mounting frame (16).

5. The caliper tool for fitter according to claim 1, characterized in that: A fixing bolt (17) is threadedly inserted into the upper surface of the vernier secondary scale (2).

6. A caliper tool for fitter according to claim 1, characterized in that: A mounting groove (18) is provided on one side of the main scale (1), a connecting strip (19) is rotatably connected to the inside of the mounting groove (18), a secondary scale (20) is rotatably connected to the outside of the connecting strip (19), and a placement groove (23) is provided on the side of the secondary scale (20) that is in contact with the main scale (1).

7. A caliper tool for fitter according to claim 1, characterized in that: Two threaded holes (21) are provided on one side of the main scale (1), and a connecting bolt (22) is threadedly passed through one of the threaded holes (21).

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