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CN-224215977-U - Digital display tape measure convenient to measure and practical

CN224215977UCN 224215977 UCN224215977 UCN 224215977UCN-224215977-U

Abstract

The utility model discloses a practical digital display tape measure convenient to measure, which comprises a shell A, a shell B and a winding and unwinding reel, wherein the shell A and the shell B are detachably connected, a tape outlet is integrally formed at the bottom of the front end of the shell A and the bottom of the front end of the shell B, a rotating shaft is arranged at the middle of the inner side of the shell B, the winding and unwinding reel is sleeved on the rotating shaft, a tape is wound on the winding and unwinding reel, one end of the tape is fixedly connected with the winding and unwinding reel, the other end of the tape penetrates through the tape outlet, a fixed grid induction sheet is embedded and installed in the tape, a movable grid inductor is fixedly embedded and installed at the bottom of the inner side of the tape outlet, and a liquid crystal display screen is fixedly installed at the top of the tape outlet. The utility model can realize the compatibility of high-precision measurement and traditional graduation through the capacitance grating sensor and the dual reading design, solves the problem of inconvenient operation by a single person by utilizing the magnetic tape head, widens the applicable scene by adopting the high-performance anti-magnetization tape, and effectively overcomes the defects of the existing tape in the aspects of precision, operation convenience, durability and functional suitability.

Inventors

  • SUN XIN

Assignees

  • 合肥九帆科技有限公司

Dates

Publication Date
20260508
Application Date
20250528

Claims (9)

  1. 1. The utility model provides a convenient and practical digital display tape measure of measuring, its characterized in that, including casing A (1), casing B (9) and receive and release reel (11), casing A (1) and casing B (9) can dismantle the connection, casing A (1) and casing B (9) front end bottom integrated into one piece have out chi mouth (8), casing B (9) inboard is provided with pivot (10) between two parties, cover is put on pivot (10) and is installed receive and release reel (11), receive and release reel (11) are last to wind and install tape (2), tape (2) one end and receive and release reel (11) fixed connection, and the other end runs through in out chi mouth (8), tape (2) inside embedding is installed and is decided bars induction piece (17), go out inboard bottom fixed embedding of chi mouth (8) and install movable bars inductor (14), play chi mouth (8) top fixed mounting has liquid crystal display (4).
  2. 2. The digital display tape measure convenient to measure and practical according to claim 1, wherein the magnetic tape head (3) which can be adsorbed and fixed on the metal surface is fixedly arranged at the tail end of the tape (2).
  3. 3. A digital tape measure for convenient and practical measurement according to claim 1, characterized in that the surface of the tape (2) is printed with graduations (7).
  4. 4. The digital display tape measure convenient and practical to measure according to claim 1, wherein bolts (15) are inserted below two sides of the casing a (1), corresponding screw holes (16) are formed below two sides of the inside of the casing B (9), and the bolts (15) can be screwed into the screw holes (16) to realize the fixed assembly of the casing a (1) and the casing B (9).
  5. 5. The digital display tape measure convenient to measure and practical according to claim 1, wherein a clockwork spring (12) is fixedly arranged on the inner side of the winding and unwinding reel (11), and the other end of the clockwork spring (12) is fixedly connected with the rotating shaft (10).
  6. 6. The digital display tape measure convenient and practical to measure according to claim 1, wherein a sealing cover (13) is fixedly arranged at the front end of the winding and unwinding reel (11) through a buckle, and the sealing cover (13) can prevent the clockwork spring (12) from being separated from the winding and unwinding reel (11).
  7. 7. The digital display tape measure convenient to measure and practical according to claim 1, wherein the front ends of the shell A (1) and the shell B (9) are provided with a lock catch (6) for controlling the locking of the tape (2).
  8. 8. The digital display tape measure convenient to measure and practical according to claim 1, wherein the fixed grid induction sheet (17) and the movable grid inductor (14) form a capacitance grid sensor, and the length of the tape is calculated through the change of relative displacement electric signals and is displayed by the liquid crystal display screen (4).
  9. 9. The digital display tape measure convenient to measure and practical according to claim 7, wherein a locking disc is mounted on the inner side of the lock catch (6) in a linkage mode, and the lock catch (6) is used for locking and unlocking the tape (2) through mechanical friction.

Description

Digital display tape measure convenient to measure and practical Technical Field The utility model relates to the technical field of measuring tools, in particular to a digital display tape measure convenient to measure and practical. Background In the fields of building construction, machine manufacturing, home decoration design and the like, a tape measure is used as a common length measuring tool, and the performance of the tape measure directly influences the measuring efficiency and accuracy. The traditional mechanical tape measure obtains the measured value through the matching of the scale of the surface of the tape measure and visual evaluation, and has the obvious defects that firstly, the measurement accuracy is greatly influenced by human factors, the evaluation error can reach +/-1 mm, the situations with higher accuracy requirements such as precise assembly and electronic device processing are difficult to meet, secondly, the two ends of the tape measure are required to be manually fixed during use, the operation is very inconvenient when the tape measure is operated by a single person, especially in measurement situations with difficulty in holding in high altitude, vertical plane and the like, thirdly, the traditional tape measure is mainly made of steel materials, rust and bending are easy to occur during long-term use, and the steel tape has magnetization risks, and if the tape measure is used for measuring magnetic sensitive parts such as electronic equipment, the measurement accuracy is disturbed, and the service life is shortened. With the development of electronic technology, the digital display tape measure has developed, and the digital display tape measure converts the displacement of the tape into an electric signal through the sensor and displays the electric signal in a digital form, so that the measurement accuracy is improved to a certain extent. However, the existing digital display tape measure part adopts a complex photoelectric or Hall sensing technology, so that the internal structure is complex, the cost is higher, and the maintenance difficulty is high. Therefore, there is a need to design a novel digital display tape measure with high accuracy measurement and high durability, which is convenient to operate, so as to solve the above problems in the prior art. Disclosure of utility model The utility model aims to provide a digital display tape measure convenient and practical to measure, the digital display tape measure can realize high-precision measurement and compatibility with traditional scales through a capacitive grating sensor and double reading design, and solve the problem of inconvenience in single operation by utilizing a magnetic tape head. The digital display tape measure convenient to measure and practical comprises a shell A, a shell B and a winding and unwinding reel, wherein the shell A and the shell B are detachably connected, a tape outlet is integrally formed in the bottoms of the front ends of the shell A and the shell B, a rotating shaft is arranged on the inner side of the shell B in a centered mode, the winding and unwinding reel is sleeved on the rotating shaft, a tape is wound on the winding and unwinding reel, one end of the tape is fixedly connected with the winding and unwinding reel, the other end of the tape penetrates through the tape outlet, a fixed grid induction sheet is embedded in the tape, a movable grid inductor is fixedly embedded in the bottom of the inner side of the tape outlet, and a liquid crystal display screen is fixedly arranged at the top of the tape outlet. Further, the magnetic ruler head which can be used for being adsorbed and fixed on the metal surface is fixedly arranged at the tail end of the ruler belt. Further, the surface of the tape is printed with scales. Furthermore, bolts are inserted into the lower parts of the two sides of the shell A, corresponding screw holes are formed in the lower parts of the two sides of the interior of the shell B, and the bolts can be screwed into the screw holes to realize the fixed assembly of the shell A and the shell B. Furthermore, a clockwork spring is fixedly arranged on the inner side of the winding and unwinding roll, and the other end of the clockwork spring is fixedly connected with the rotating shaft. Furthermore, the front end of the winding and unwinding reel is fixedly provided with a sealing cover through a buckle, and the sealing cover can prevent the spiral spring from being separated from the winding and unwinding reel. Further, the front ends of the shell A and the shell B are provided with lock catches which can be used for controlling locking of the tape. Furthermore, the tape is made of soft base materials with fracture resistance, rust resistance and antimagnetic performance, and can be suitable for surface measurement of various materials such as metal, wood, plastic and the like. Furthermore, the fixed grid induction sheet and the movable grid inductor form