A precision length measuring tool

Abstract

The utility model discloses a kind of precision length measuring tools, it is related to measuring tool technical field, including fixed seat, the right side fixed connection of fixed seat has main ruler, the cursor is set on main ruler, lubricating mechanism is arranged on cursor, the lubricating mechanism includes the storage box being set on cursor, spring tensioner and controller are fixedly connected in the lower end inner wall of storage box, recess is opened in the lower end of storage box, mobile plate is slidably connected in the inside of recess, by setting lubricating mechanism, when main ruler and cursor are used for a long time after instrument oil consumption, can be automatically sprayed quantitative instrument oil to the connecting place of two, without manually, it is very convenient, also can not cause instrument oil waste, guarantee the good use of measuring tool, avoid not timely correct addition instrument oil to lead to device wear and tear, greatly improve the service life of device and measurement accuracy.

Description

Technical Field

[0001] This utility model relates to the field of measuring tool technology, and in particular to a precision length measuring tool. Background Technology

[0002] A vernier caliper is a measuring tool used to measure length, inner and outer diameters, and depth. A vernier caliper consists of two parts: a main scale and a sliding vernier attached to the main scale. Both the main scale and the vernier have external measuring jaws, which are usually used to measure length and outer diameter. Compared with mechanical vernier calipers, digital vernier calipers have better measurement accuracy and more accurate measurement results.

[0003] After prolonged use, the instrument oil between the vernier scale and the main scale of existing digital vernier calipers is depleted, increasing friction and causing wear. This requires manual addition of instrument oil, which is inconvenient and cannot guarantee sufficient addition, affecting subsequent use. Furthermore, when inspecting irregularly shaped objects, especially those with inclined surfaces, only the existing measuring jaws can be used for rough measurement, making it impossible to measure some tightly fitted components, resulting in inefficient use of resources.

[0004] Therefore, those skilled in the art have provided a precision length measuring tool to solve the problems mentioned in the background art. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a precision length measuring tool, which solves the problems mentioned in the background section.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a precision length measuring tool, comprising a fixed base, a main scale fixedly connected to the right side of the fixed base, a vernier scale sleeved on the main scale, a lubrication mechanism provided on the vernier scale, the lubrication mechanism comprising a storage box disposed on the vernier scale, a spring tensioner and a controller fixedly connected to the lower inner wall of the storage box, a groove formed at the lower end of the storage box, a movable plate slidably connected inside the groove, the movable plate and the spring tensioner being connected by a connecting rope, and an opening formed at the lower end of the storage box, with a solenoid valve disposed inside the opening.

[0007] As a further technical solution of this utility model, the lubrication mechanism also includes a through groove opened on the vernier, the storage box is placed inside the through groove, a fixing groove is opened on the side wall of the through groove, and a fixing block is connected to the storage box by a spring column, the fixing block being adapted to the fixing groove.

[0008] As a further technical solution of this utility model, the controller is electrically connected to the solenoid valve.

[0009] As a further technical solution of this utility model, the lower surface of the storage box is in full contact with the upper surface of the main scale, and the storage box contains instrument oil.

[0010] As a further technical solution of this utility model, the length of the groove is slightly longer than the length of the movable plate, and the movable plate can move within the groove.

[0011] As a further technical solution of this utility model, the lower end of each of the fixed bases is provided with a clamping member, and the two are connected by a connecting mechanism. The connecting mechanism includes a spiral groove formed at the lower end of the fixed base, and a spiral column is fixedly connected to the upper end of the clamping member. The spiral column is spirally connected to the spiral groove.

[0012] As a further technical solution of this utility model, the lower end of the vernier is provided with a clamping member, which is also connected by a connecting mechanism, and the adjacent surfaces of the two clamping members are clamping surfaces.

[0013] As a further technical solution of this utility model, a push wheel is provided at the front corner of the vernier, an adjustment knob is provided at the lower end of the vernier, and a display screen is embedded in the front end of the vernier.

[0014] This utility model provides a precision length measuring tool, which has the following advantages compared with the prior art:

[0015] By incorporating a lubrication mechanism, when the instrument oil in the main scale and vernier is depleted after prolonged use, a fixed amount of instrument oil can be automatically sprayed onto the connection between the two. This eliminates the need for manual operation, making it very convenient and preventing waste of instrument oil. This ensures the proper functioning of the measuring tools and avoids wear caused by improper or untimely addition of instrument oil, greatly improving the lifespan and measurement accuracy of the device. Furthermore, the inclusion of replaceable clamps allows the device to measure irregular objects, enhancing its practicality. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a precision length measuring tool;

[0017] Figure 2 for Figure 1 A partial three-dimensional exploded structure diagram;

[0018] Figure 3 for Figure 2 A magnified structural diagram at point A;

[0019] Figure 4 for Figure 2 A schematic diagram of the structure viewed from below;

[0020] Figure 5 for Figure 4 A magnified structural diagram at point B;

[0021] Figure 6 This is a schematic diagram of the lower cross-sectional structure of the storage box.

[0022] In the diagram: 1. Fixed base; 2. Main scale; 3. Vernier; 4. Push wheel; 5. Adjustment knob; 6. Display screen; 7. Through slot; 8. Storage box; 9. Opening; 10. Solenoid valve; 11. Spring tensioner; 12. Groove; 13. Moving plate; 14. Connecting rope; 15. Controller; 16. Spring column; 17. Fixed block; 18. Fixed groove; 20. Clamping component; 21. Spiral column; 22. Spiral groove. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-6 This utility model provides a technical solution for a precision length measuring tool: it includes a fixed base 1, a main scale 2 fixedly connected to the right side of the fixed base 1, a vernier 3 sleeved on the main scale 2, and a lubrication mechanism on the vernier 3. The lubrication mechanism includes a storage box 8 set on the vernier 3, a spring tensioner 11 and a controller 15 fixedly connected to the lower inner wall of the storage box 8, a groove 12 opened at the lower end of the storage box 8, a moving plate 13 slidably connected inside the groove 12, and the moving plate 13 and the spring tensioner 11 connected by a connecting rope 14. An opening 9 opened at the lower end of the storage box 8, and a solenoid valve 10 is set inside the opening 9. When the vernier 3 moves based on the surface of the main scale 2, the moving plate 13 will move inside the groove 12 under the action of friction and pull the spring tensioner 11. When the pulling force reaches a certain value, a signal will be transmitted to the controller 15, and the controller 15 controls the solenoid valve 10 to open, so that the instrument oil is added through the opening 9.

[0025] The lubrication mechanism also includes a through groove 7 on the vernier 3, a storage tank 8 placed inside the through groove 7, a fixing groove 18 on the side wall of the through groove 7, and a fixing block 17 connected to the storage tank 8 by a spring column 16. The fixing block 17 is adapted to the fixing groove 18, and one end of the fixing block 17 is designed with an arc surface to facilitate removal from the fixing groove 18. When it is necessary to add instrument oil to the storage tank 8, simply pull it upward to remove the storage tank 8 from the through groove 7 for easy addition of instrument oil.

[0026] The controller 15 is electrically connected to the solenoid valve 10. After receiving the tension signal, the controller 15 controls the solenoid valve 10 to facilitate the injection of instrument oil.

[0027] The lower surface of the storage tank 8 is in full contact with the upper surface of the main scale 2. The storage tank 8 contains instrument oil. The instrument oil inside the storage tank 8 can be directly injected into the main scale 2 through the opening 9 to avoid waste and ensure sufficient replenishment. At the same time, a filling port is provided on the storage tank 8 for adding instrument oil.

[0028] Each of the fixed bases 1 has a clamping member 20 at its lower end, and the two are connected by a connecting mechanism. The connecting mechanism includes a spiral groove 22 opened at the lower end of the fixed base 1. A spiral column 21 is fixedly connected to the upper end of the clamping member 20. The spiral column 21 is spirally connected to the spiral groove 22. When the clamping member 20 is rotated based on the fixed base 1, the spiral column 21 rotates synchronously with the clamping member 20, and can gradually move out of the spiral groove 22, making it convenient to replace different clamping members 20.

[0029] The lower end of the vernier 3 is provided with a clamping member 20, which is also connected by a connecting mechanism. The adjacent surfaces of the two clamping members 20 are clamping surfaces. The clamping member 20 below the vernier 3 can also be quickly replaced by rotating it, which is convenient for use.

[0030] A push wheel 4 is provided at the front corner of the vernier 3, an adjustment knob 5 is provided at the lower end of the vernier 3, and a display screen 6 is embedded in the front of the vernier 3. The vernier 3 can be moved based on the main scale 2 by rotating the push wheel 4. The adjustment knob 5 can adjust the clamping force between the main scale 2 and the vernier 3. The measurement data can be viewed directly on the display screen 6.

[0031] The working principle of this utility model is as follows: After long-term use, when the instrument oil of the main scale 2 and vernier 3 is depleted, the vernier 3 is moved based on the push wheel 4. Under the action of friction, the moving plate 13 moves inside the groove 12 and pulls the spring tensioner 11. When the tension reaches a certain value, a signal is transmitted to the controller 15. The controller 15 controls the solenoid valve 10 to open, and the instrument oil is added through the opening 9. This is very convenient as it does not require manual operation by the operator and does not waste instrument oil, ensuring the accuracy of the measurement work. Proper use of the instrument avoids wear caused by improper or untimely addition of instrument oil, greatly improving the service life and measurement accuracy of the device. When different items need to be measured, the clamping part 20 can be replaced. At this time, the clamping part 20 is rotated based on the fixed base 1, and the spiral column 21 rotates synchronously with the clamping part 20, which can gradually move out of the spiral groove 22, making it convenient to replace different clamping parts 20. The clamping part 20 below the vernier 3 can be replaced in the same way, enabling the device to measure irregular items and improving the practicality of the measuring device.

[0032] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model are implemented according to conventional methods in the art, unless otherwise specified or limited.

Claims

1. A precision length measuring tool, comprising a fixed base (1), wherein a main scale (2) is fixedly connected to the right side of the fixed base (1), and a vernier scale (3) is fitted onto the main scale (2), characterized in that: The vernier (3) is provided with a lubrication mechanism, which includes a storage box (8) provided on the vernier (3). A spring tensioner (11) and a controller (15) are fixedly connected to the inner wall of the lower end of the storage box (8). A groove (12) is provided at the lower end of the storage box (8). A moving plate (13) is slidably connected inside the groove (12). The moving plate (13) is connected to the spring tensioner (11) by a connecting rope (14). An opening (9) is provided at the lower end of the storage box (8). A solenoid valve (10) is provided inside the opening (9).

2. The precision length measuring tool according to claim 1, characterized in that, The lubrication mechanism also includes a through groove (7) opened on the vernier (3), the storage box (8) is placed inside the through groove (7), a fixing groove (18) is opened on the side wall of the through groove (7), and a fixing block (17) is connected to the storage box (8) by a spring column (16), and the fixing block (17) is adapted to the fixing groove (18).

3. A precision length measuring tool according to claim 2, characterized in that, The controller (15) is electrically connected to the solenoid valve (10).

4. A precision length measuring tool according to claim 1, characterized in that, The lower surface of the storage box (8) is in full contact with the upper surface of the main scale (2), and the storage box (8) contains instrument oil.

5. A precision length measuring tool according to claim 1, characterized in that, The length of the groove (12) is slightly longer than the length of the movable plate (13), which can move within the groove (12).

6. A precision length measuring tool according to claim 1, characterized in that, The lower end of each fixed base (1) is provided with a clamping member (20), and the two are connected by a connecting mechanism. The connecting mechanism includes a spiral groove (22) opened at the lower end of the fixed base (1). The upper end of the clamping member (20) is fixedly connected with a spiral column (21), and the spiral column (21) is spirally connected to the spiral groove (22).

7. A precision length measuring tool according to claim 6, characterized in that, The lower end of the vernier (3) is provided with a clamping member (20) and is also connected by a connecting mechanism. The adjacent surfaces of the two clamping members (20) are clamping surfaces.

8. A precision length measuring tool according to claim 1, characterized in that, A push wheel (4) is provided at the front corner of the vernier (3), an adjustment knob (5) is provided at the lower end of the vernier (3), and a display screen (6) is embedded in the front end of the vernier (3).

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