High-precision internal and external right angle detection ruler
By setting an angle ring with an increasing radius on the main scale of the inner and outer right-angle detection ruler, the problem of fixed detection accuracy of the existing detection ruler and insufficient detection angle value is solved, and high-precision and widely applicable detection effect is achieved.
Patent Information
- Application Number
- CN202420606705.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-27
- Publication Date
- 2025-05-06
- Estimated Expiration
- 2034-03-27
AI Technical Summary
The detection accuracy of the existing internal and external right-angle detection rulers is fixed, and due to the size of the ruler itself, its minimum detection angle value is usually 6 degrees, which cannot meet the high-precision requirements.
A high-precision right-angle detection ruler in the inner and outer angle detection ruler is designed. By setting several angle rings with increasing radii on the main ruler, the depth of the pointer rod being inserted into the installation groove is adjusted to achieve the adjustment of detection accuracy.
By adjusting the coordination between the angle ring and the pointer rod, the minimum angle value of the detection ruler can be adjusted according to actual accuracy requirements, improving the detection accuracy, and a wider range of application.
Smart Images
Figure CN222837577U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of detection devices, in particular to a high-precision internal and external right-angle detection ruler. Background Art
[0002] The inside and outside right angle measuring ruler is used to detect the deviation of the inside and outside (yin and yang) right angles on an object, as well as the verticality and horizontality of a general plane. It is also called a ruler. It is used to detect the verticality, horizontality and flatness of the plane of a building object. It is the most frequently used detection tool in home decoration supervision. It detects whether the wall and tiles are flat and vertical, and whether the floor keel is horizontal and flat. The detection accuracy of the existing inside and outside right angle measuring ruler is fixed and limited by the size of the ruler itself. The minimum detection angle value is usually 6 degrees. Utility Model Content
[0003] The purpose of the utility model is to provide a high-precision internal and external right angle detection ruler for solving the above problems.
[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0005] A high-precision internal and external right-angle detection ruler comprises a main ruler, a secondary ruler and a rotating shaft, wherein one end of the main ruler is provided with a rotating shaft hole which passes through the ruler from front to back, the rear end of the rotating shaft is fixedly arranged at one end of the secondary ruler, the front end of the rotating shaft is rotatably inserted into the rotating shaft hole, the top surface of the front end head of the rotating shaft is provided with a detection pointer which is parallel to the secondary ruler from front to back, the detection pointer comprises a mounting rod and a pointer rod, the mounting rod is in a truncated cone structure, and the bottom end of the truncated cone is fixedly connected to the rotating shaft, the top end of the truncated cone is provided with a mounting groove, the pointer rod is movably inserted into the mounting groove, a plurality of angle rings are arranged from the inside to the outside on the front side of the main ruler with the center of the rotating shaft hole as the midpoint of the circle, and the radius of each angle ring increases from the inside to the outside, an inclined angle line is arranged on the front side of the angle ring, and the minimum angle value of the inclined angle line of each angle ring decreases from the inside to the outside.
[0006] Preferably, the bottom end of the pointer rod is elastically connected to the bottom of the mounting groove through a spring member, a sliding opening connected to the mounting groove is axially provided on the side wall of the mounting rod, a driving block passing through the sliding opening is provided on the rod wall of the pointer rod, a plurality of L-shaped bayonet openings are axially provided on one side of the sliding opening, and the L-shaped bayonet openings are connected to the sliding opening for the driving block to be inserted.
[0007] Preferably, a limit head is provided at the bottom end of the pointer rod, a limit ring is provided at the notch of the mounting slot to limit the limit head from sliding out of the mounting slot, and the drive block and the spring member are both provided on the limit head.
[0008] Preferably, a side of the driving block passing through the sliding opening is provided with anti-slip grooves.
[0009] Preferably, a plurality of magnetic grooves are arranged on the front side of the main scale and the front side of each of the angle rings along the circumferential direction with the rotating shaft hole as the center, and a magnetic stone which is inserted into the magnetic groove of the previous group is arranged on the back side of the angle ring.
[0010] Preferably, the front side of the main ruler and the front side of each of the angle rings are provided with positioning grooves, and the back side of the angle ring is provided with positioning blocks which are inserted into the positioning grooves of the previous group.
[0011] After adopting the above technical solution, the utility model has the following advantages compared with the background technology:
[0012] The utility model provides a high-precision inside and outside right angle detection ruler. The utility model sets a plurality of angle circular rings with increasing radius from inside to outside by taking the center of the rotating shaft hole on the main ruler as the midpoint of the circular ring. As the radius of the ring body increases, the minimum angle value of the inclined angle line of the angle circular ring decreases from inside to outside. When in use, the minimum angle value of the detection ruler can be adjusted by superimposing or reducing the angle circular rings according to actual accuracy requirements. At the same time, the depth of the pointer rod inserted into the installation groove is adjusted so that the length of the detection pointer is matched with the size of the angle circular ring. The utility model is convenient to use, the detection accuracy can be adjusted, the detection accuracy is high, and the application range is wide. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the structure of the utility model;
[0014] Figure 2 It is a partial enlarged schematic diagram of the measurement position structure of the utility model;
[0015] Figure 3 This is a schematic diagram of the front structure of the main ruler of the utility model;
[0016] Figure 4 This is a schematic diagram of the back structure of the auxiliary ruler of the utility model;
[0017] Figure 5 This is a schematic diagram of the detection pointer structure of the utility model;
[0018] Figure 6 This is a schematic diagram of the internal structure of the detection pointer of the utility model. DETAILED DESCRIPTION
[0019] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0020] It should be noted that in the present invention, the terms "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element of the present invention must have a specific orientation, and therefore cannot be understood as a limitation on the present invention. Example
[0021] Please refer to Figures 1 to 6 As shown, the utility model discloses a high-precision internal and external right-angle detection ruler, comprising a main ruler 1, a secondary ruler 2 and a rotating shaft 3. A rotating shaft hole 11 penetrating front and back is provided at one end of the main ruler 1, the rear end of the rotating shaft 3 is fixedly arranged at one end of the secondary ruler, the front end of the rotating shaft 3 is rotatably inserted in the rotating shaft hole, and a detection pointer 4 parallel to the secondary ruler 2 is arranged on the top surface of the front end head of the rotating shaft 3. The detection pointer 4 comprises a mounting rod 41 and a pointer rod 42. The mounting rod 41 is a truncated cone structure, and the bottom end of the truncated cone is fixedly connected to the rotating shaft 3, and a mounting groove 411 is provided at the top of the truncated cone. The pointer rod 42 is movably inserted in the mounting groove 411. A plurality of angle rings 5 are arranged from the inside to the outside on the front side of the main ruler 1 with the center of the rotating shaft hole 11 as the midpoint of the circle, and the radius of each angle ring 5 increases from the inside to the outside, and an inclined angle line 51 is arranged on the front side of the angle ring 5, and the minimum angle value of the inclined angle line 51 of each angle ring 5 decreases from the inside to the outside.
[0022] The bottom end of the pointer rod 42 is elastically connected to the bottom of the mounting groove 411 through a spring member 43. The side wall of the mounting rod 41 is axially provided with a sliding opening 412 connected to the mounting groove 411. The rod wall of the pointer rod 42 is provided with a driving block 421 passing through the sliding opening 412. A plurality of L-shaped bayonet holes 413 are axially provided on one side of the sliding opening 412, and the L-shaped bayonet holes 413 are connected to the sliding opening 412 for the driving block 421 to be inserted.
[0023] A limit head 44 is disposed at the bottom end of the pointer rod 42 , a limit ring 45 is disposed at the notch of the mounting groove 411 to limit the limit head 44 from sliding out of the mounting groove 411 , and the driving block 421 and the spring member 43 are both disposed on the limit head 44 .
[0024] The side of the driving block 421 passing through the sliding opening 412 is provided with anti-slip grooves.
[0025] A plurality of magnetic grooves 6 are arranged on the front of the main ruler 1 and the front of each angle ring 5 along the circumferential direction with the rotating shaft hole as the center, and a magnetic stone 7 which is inserted into the previous group of magnetic grooves 6 is arranged on the back of the angle ring 5 .
[0026] Positioning grooves 8 are provided on the front side of the main ruler 1 and the front side of each angle ring 5 , and positioning blocks 9 which are inserted into the previous group of positioning grooves 8 are provided on the back side of the angle ring 5 .
[0027] The above are only preferred specific implementations of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.
Claims
1. A high-precision internal and external right angle measuring ruler, characterized by: It includes a main scale, a secondary scale and a rotating shaft, one end of the main scale is provided with a rotating shaft hole that passes through the front and back, the rear end of the rotating shaft is fixedly arranged at one end of the secondary scale, the front end of the rotating shaft is rotatably inserted into the rotating shaft hole, and the top surface of the front end of the rotating shaft is provided with a detection pointer that is parallel to the front and back of the secondary scale, the detection pointer includes a mounting rod and a pointer rod, the mounting rod is a truncated cone structure, and the bottom end of the truncated cone is fixedly connected to the rotating shaft, the top end of the truncated cone is provided with a mounting groove, the pointer rod is movably inserted into the mounting groove, the front side of the main scale is provided with a plurality of angle rings from the inside to the outside with the center of the rotating shaft hole as the midpoint of the circle, and the radius of each angle ring increases from the inside to the outside, the front side of the angle ring is provided with an inclined angle line, and the minimum angle value of the inclined angle line of each angle ring decreases from the inside to the outside.
2. A high-precision internal and external right angle measuring ruler as claimed in claim 1, characterized in that: The bottom end of the pointer rod is elastically connected to the bottom of the mounting groove through a spring member, a sliding opening connected to the mounting groove is axially provided on the side wall of the mounting rod, a driving block passing through the sliding opening is provided on the rod wall of the pointer rod, a plurality of L-shaped bayonet openings are axially provided on one side of the sliding opening, and the L-shaped bayonet openings are connected to the sliding opening for the driving block to be inserted.
3. A high-precision internal and external right angle measuring ruler as claimed in claim 2, characterized in that: A limit head is arranged at the bottom end of the pointer rod, a limit clamp ring is arranged at the notch of the installation slot to limit the limit head from sliding out of the installation slot, and the drive block and the spring member are both arranged on the limit head.
4. A high-precision internal and external right angle measuring ruler as claimed in claim 2, characterized in that: The side of the driving block passing through the sliding opening is provided with anti-slip grooves.
5. A high-precision internal and external right angle measuring ruler as claimed in claim 1, characterized in that: The front side of the main scale and the front side of each of the angle rings are provided with a plurality of magnetic grooves along the circumferential direction with the rotating shaft hole as the center, and the back side of the angle ring is provided with a magnetic stone which is inserted into the magnetic groove of the previous group.
6. A high-precision internal and external right angle measuring ruler as claimed in claim 5, characterized in that: The front side of the main scale and the front side of each of the angle rings are provided with positioning grooves, and the back side of the angle ring is provided with positioning blocks which are inserted into the positioning grooves of the previous group.