Intelligent digital measuring scale

Abstract

The utility model belongs to the field of measuring rulers, and relates to an intelligent digital measuring ruler which comprises a lower shell, a ruler box rolling box, a measuring tape belt, a shell cover, a bolt rod, an upper shell and a sensor sensing plate, a fixed column is fixedly connected to the inner side of the lower shell, the rotatable ruler box rolling box is axially arranged on the outer side of the fixed column and rotatably connected to the position of the fixed column on the inner side of the lower shell, and the bolt rod is arranged on the lower shell. A pre-tightening clockwork coil spring is arranged in the tape box rolling box; a tape is arranged on the periphery of the tape box winding box, a shell cover is arranged at the upper end of the tape box winding box, a first through hole is formed in the inner side of the shell cover, sensor induction plates are arranged at the upper ends of the tape box winding box and the shell cover, bolt rods are further arranged at the upper ends of the tape box winding box and the shell cover, penetrate through the shell cover and the through hole in the inner side of the tape box winding box and are connected with the inner side of the fixing column, and the fixing column is connected with the outer side of the tape box winding box. And through the communication between the sensor induction plate and the fixed circuit board on the inner side of the upper shell, the rotation length of the tape box winding box is obtained, so that the length of the tape is obtained. The structure occupies a small space and is convenient to carry outside.

Description

Technical Field

[0001] The utility model relates to the technical field of measuring rulers, and more specifically to an intelligent digital measuring ruler. Background Art

[0002] The intelligent digital measuring ruler is an advanced tool that combines modern technology with the functions of a traditional measuring ruler. It not only has the length measurement function of a traditional measuring ruler, but also incorporates digital and intelligent technologies such as laser distance measurement, angle measurement, data analysis, etc., making the measurement work more accurate and efficient.

[0003] The existing smart tape measure usually adopts the following technical solutions: including a housing, a positioning column shaft is provided inside the housing, a spring winding box is slidably installed on the positioning column through a center hole, a spring pre-tightening spring is installed inside the spring winding box, a gear part with internal teeth is fixedly installed on the upper end of the spring winding box, a spring pre-tightening box is provided on the outer side of the positioning column at the upper end of the inner side of the spring winding box, an encoder is installed on the spring pre-tightening box, a gear is installed on the rotating shaft of the encoder, the gear of the encoder meshes with the inner teeth of the gear part, a tape is wound around the outer side of the spring winding box, the tape retracts back and forth to drive the spring winding box to rotate, and also drives the gear part to rotate, the gear part meshes with the encoder gear through the inner teeth and rotates, and the length dimension is calculated by analyzing the number of encoder rotation circumferences. This gear meshing solution has very high requirements for production and processing precision, and the high number of defective products in the production process leads to increased costs, and the increase in the number of user uses makes the gear meshing easy to wear, resulting in reduced precision. Utility Model Content

[0004] The technical problem to be solved by the utility model is that the existing intelligent measuring tape has a high number of defective products in the production process, which leads to increased costs, and the gear meshing is easy to wear due to the increase in the number of times users use it, which leads to reduced accuracy. In view of the above-mentioned defects of the prior art, an intelligent digital measuring ruler is provided, comprising:

[0005] The cam is provided with a plurality of locking plates, the locking plates having a first end and a second end, and the locking plates have a first end and a second end, and the locking plates have a first end and a second end, respectively.

[0006] Preferably, an opening is provided at the upper end of the ruler box winding box, an extension block is provided on the outer periphery of the shell cover, the extension block protrudes downward in a circumference, the outer periphery of the shell cover is placed in the ruler box winding box, and the extension block is connected and fixed at a position corresponding to the opening.

[0007] Preferably, the ruler box and winding box are provided with a first protruding block and a second protruding block, the first protruding block is provided with a first opening, the second protruding block is provided with a second opening, the first opening is used to avoid the first protruding block, and the second opening is used to avoid the second protruding block.

[0008] Preferably, a protruding cylinder is provided on the inner side of the shell cover, a third opening is provided on the outer side of the protruding cylinder, and the sensor induction plate is fixedly connected above the shell cover.

[0009] Preferably, a second through hole is provided on the inner side of the sensor induction plate and is interlaced and connected with the cylinder on the shell cover.

[0010] Preferably, the latch rod is vertical, a fourth opening is provided on the inner side of the latch rod, and bumps are provided on both sides of the lower end of the latch rod.

[0011] Preferably, a clockwork spring is installed on the inner side of the ruler box winding box, one end of the outer side of the clockwork spring is fixed on the first protruding block, and the middle end is fixed through the fourth opening on the inner side of the latch rod, and the outer periphery of the ruler box winding box is connected to the measuring tape, one end of the measuring tape is opened and fixed on the second protruding block, and the other end is output outside the shell body.

[0012] Preferably, the fixing column is fixedly connected to the inner side of the lower shell, the outer side of the fixing column is rotatably connected to the ruler box winding box, the inner side of the fixing column is fixedly connected to a clockwork spring, the upper end of the ruler box winding box is fixedly connected to the shell cover, and the upper end is fixed with the sensor sensing plate.

[0013] Preferably, the latch rod passes through the inner through hole of the sensor sensing plate, the inner through hole of the shell cover and the lower through hole of the ruler box and winding box, and is connected to the fixed column on the inner side of the lower shell and is limited by the rib position.

[0014] The implementation of the intelligent digital measuring ruler of the utility model has the following beneficial effects: by installing and fixing the inductive sensor induction board on the ruler box, winding box and shell cover, the sensor induction board driven by the ruler box, winding box and shell cover when rotating needs to be stable up and down to make the measurement accuracy more accurate, and by inserting the pin rod downward into the fixing of the lower shell, the ruler box, winding box, shell cover and sensor induction board can stably output radio frequency signals to the chip on the circuit board for calculation; the structure occupies a small space, the product is small and easy to carry, and it is very convenient to measure the home in daily life and to measure the body when going out for fitness. Through intelligent digital measurement, people can save a lot of time and have a good experience; the product is small and light and easy to carry. While meeting people's daily use, the product structure and manufacturing process are simple and can be mass-produced. On the basis of the traditional tape measure structure, it is only necessary to install sensors, single-chip microcomputers and chip storage algorithms on the internal tape box to calculate the length and distance of the tape measure by sending radio signals of different frequencies to the chip through the sensor induction board. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the embodiments or the prior art descriptions. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without creative work. The utility model will be further described below in combination with the drawings and embodiments. In the drawings:

[0016] Figure 1 This is a schematic diagram of the structure of the measuring device of the intelligent digital measuring ruler of the utility model;

[0017] Figure 2 This is an exploded diagram of the structure of the intelligent digital measuring ruler of the utility model;

[0018] Figure 3 A schematic diagram of assembling a spring spring for a ruler box and a winding box inside the housing of the intelligent digital measuring ruler of the utility model;

[0019] Figure 4 This is an exploded schematic diagram of the overall structure of the intelligent digital measuring ruler of the utility model;

[0020] Figure 5 This is one of the partial structural exploded views of the ruler box, winding box and shell cover of the intelligent digital measuring ruler of the utility model;

[0021] Figure 6 The shell cover of the intelligent digital measuring ruler of the utility model is shown in FIG. Figure 1 ;

[0022] Figure 7The utility model is a schematic diagram of the ruler box and winding box of the intelligent digital measuring ruler Figure 2 ;

[0023] Figure 8 It is a partial schematic diagram of the lower shell of the intelligent digital measuring ruler of the utility model;

[0024] Fig. 9 This is a schematic diagram of the pin rod structure of the intelligent digital measuring ruler of the utility model;

[0025] Fig.10 It is a schematic diagram of the overall structure of the lower shell, the ruler box and winding box, the measuring tape, the shell cover, the latch rod, the sensor induction plate and the spring spring of the intelligent digital measuring ruler of the utility model;

[0026] Fig.11 The figure is a schematic diagram of the upper shell and PCB structure of the intelligent digital measuring ruler of the utility model.

[0027] In the figure, 1-lower shell, 2-ruler box and winding box, 3-tape measure, 4-shell cover, 5-latch rod, 6-upper shell, 7-sensor sensing plate, 20-fixing column, 11-pre-tightening spring, 21-first through hole, 22-protruding cylinder, 23-third opening, 30-opening, 31-extension block, 40-rib position, 41-first protruding block, 42-second protruding block, 43-first opening, 44-second opening, 60-second through hole, 61-fourth opening, 121-protrusion. DETAILED DESCRIPTION

[0028] 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 of 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.

[0029] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0030] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0031] Figure 1 This is a schematic diagram of the structure of the measuring device of the intelligent digital measuring ruler of the utility model; Figure 2 This is an exploded diagram of the structure of the intelligent digital measuring ruler of the utility model; Figure 3 A schematic diagram of assembling a spring spring for a ruler box and a winding box inside the housing of the intelligent digital measuring ruler of the utility model; Figure 4 This is an exploded schematic diagram of the overall structure of the intelligent digital measuring ruler of the utility model; Figure 5 This is one of the partial structural exploded views of the ruler box, winding box and shell cover of the intelligent digital measuring ruler of the utility model; Figure 6 The shell cover of the intelligent digital measuring ruler of the utility model is shown in FIG. Figure 1 ; Figure 7 The utility model is a schematic diagram of the ruler box and winding box of the intelligent digital measuring ruler Figure 2 ; Figure 8 It is a partial schematic diagram of the lower shell of the intelligent digital measuring ruler of the utility model; Fig. 9 This is a schematic diagram of the pin rod structure of the intelligent digital measuring ruler of the utility model; Fig.10 It is a schematic diagram of the overall structure of the lower shell, the ruler box and winding box, the measuring tape, the shell cover, the latch rod, the sensor induction plate and the spring spring of the intelligent digital measuring ruler of the utility model; Fig.11 This is a schematic diagram of the upper shell and PCB structure of the utility model intelligent digital measuring ruler. Figure 1-Figure 11In the first embodiment of the utility model, the intelligent digital measuring ruler at least includes a lower shell 1, a ruler box reel box 2, a measuring tape 3, a shell cover 4, a latch rod 5, an upper shell 6, and a sensor sensing plate 7. A fixed column 20 is fixedly connected to the inner side of the lower shell 1, and a rotatable ruler box reel box 2 is axially arranged on the outer side of the fixed column 20. The ruler box reel box 2 is rotatably connected to the fixed column position on the inner side of the lower shell 1. A pre-tightening spring coil 11 is arranged in the ruler box reel box 2; a measuring tape 3 is arranged on the outer circumference of the ruler box reel box 2, and the ruler box reel box 2 is provided with a pre-tightening spring coil 11. A shell cover 4 is provided at the upper end, a first through hole 21 is provided on the inner side of the shell cover 4, a sensor sensing plate 7 is provided on the upper ends of the ruler box winding box 2 and the shell cover 4, a latch rod 5 is also provided on the upper ends of the ruler box winding box 2 and the shell cover 4, the latch rod 5 passes through the shell cover 4 and the inner through holes of the ruler box winding box 2, the latch rod 5 is connected to the inner side of the fixed column 20, and is fixed by the rib position 40, and the sensor sensing plate 7 communicates with the fixed circuit board on the inner side of the upper shell 6 to obtain the rotation length of the ruler box winding box 2 and thereby obtain the length of the measuring tape 3.

[0032] An opening 30 is provided at the upper end of the ruler box winding box 2, and an extension block 31 is provided on the outer periphery of the shell cover 4. The extension block 31 protrudes downward in a circumference. The outer periphery of the shell cover 4 is placed in the ruler box winding box 2, and the extension block 31 is connected and fixed at the corresponding position of the opening 30.

[0033] The ruler box and winding box 2 are provided with a first protruding block 41 and a second protruding block 42 . The first protruding block 41 is provided with a first opening 43 , and the second protruding block 42 is provided with a second opening 44 . The first opening 43 is used to avoid the first protruding block 41 , and the second opening 44 is used to avoid the second protruding block 42 .

[0034] A protruding cylinder 22 is provided on the inner side of the shell cover 4 , and a third opening 23 is provided on the outer side of the protruding cylinder 22 . The sensor induction plate 7 is fixedly connected on the top of the shell cover 4 .

[0035] A second through hole 60 is formed on the inner side of the sensor plate 7 and is inserted and connected with the cylinder 22 on the shell cover 4 .

[0036] The latch rod 5 is vertical, a fourth opening 61 is provided inside the latch rod 5 , and bumps 121 are provided on both sides of the lower end of the latch rod 5 .

[0037] A clockwork spring 11 is installed on the inner side of the ruler box winding box 2, one end of the outer side of the clockwork spring 11 is fixed on the first protruding block 41, and the middle end is fixed through the fourth opening 61 on the inner side of the latch rod 5. A measuring tape 3 is connected to the outer periphery of the ruler box winding box 2, one end of the measuring tape 3 is snap-fitted and fixed on the second protruding block 42, and the other end is output outside the shell.

[0038] The lower shell 1 is fixedly connected to a fixed column 20 on the inside, and the fixed column 20 is rotatably connected to the ruler box winding box 2 on the outside. The fixed column 20 is fixedly connected to a winding spring 11 on the inside, and the upper end of the ruler box winding box 2 is fixedly connected to the shell cover 4 and a sensor induction plate 7 is fixed on the upper end.

[0039] The latch rod 5 passes through the inner through hole of the sensor sensing plate 7, the inner through hole of the shell cover 4 and the lower through hole of the ruler box and winding box 2, and is connected to the inner fixed column 20 of the lower shell 1 and is limited by the rib position 40.

[0040] The measuring tape 3 can be a steel tape, a synthetic plastic fiber tape or a cord.

[0041] The ruler box winding box 2 is coaxially connected to the fixed column 20 inside the lower shell 1 and between the upper shell 6 and the lower shell 1. A spring coil 11 for pre-tightening the ruler box is provided inside the ruler box winding box; one end of the spring coil 11 is connected to the ruler box winding box 2; it is fixed to the first protruding block 41 through the first opening 43, and the inner end of the measuring tape 3 is connected to the ruler box winding box 2; it is fixed to the second protruding block 42 through the second opening 44, and is wound and collected on the outer circumference of the ruler box winding box 2, and the other end thereof extends to the outside through the outlet on the side wall of the shell body. The measuring tape 3 is a steel belt, a synthetic plastic fiber ruler tape or a rope. The shell cover 4 is located at the upper inner end of the ruler box winding box 2, and the shell cover 4 is fixed to the opening 30 at the upper inner end of the ruler box winding box 2 through the extension block 31. The sensor sensing plate 7 is located at the upper inner end of the shell cover 4 of the ruler box winding box, and the sensor sensing plate 7 is fixed to the third opening 23 of the protruding cylinder 22 at the upper end of the shell cover 4 through the through hole 60. The latch rod 5 passes through the first through hole 21 in the middle of the shell cover 4, and through the fourth opening 61, through the winding spring 11, and through the center hole of the ruler box winding box 2, and is connected to the inner side of the fixed column 20 of the lower shell 1; and the protrusion 121 in the latch rod 5 is inserted into the inner side of the fixed column 20 of the lower shell 1, and is connected to the rib position 40 through the fourth opening 61 for fixing.

[0042] The sensor induction board 7 is located at the upper end of the ruler box, the winding box and the shell cover, and the sensor induction board 7 is fixed on the ruler box, the winding box and the shell cover. When the ruler box, the winding box and the shell cover rotate, the sensor induction board 7 can be driven to rotate at the same time, and a coil is provided on the sensor induction board to form a magnetic field flux. A circuit board 10 is fixedly installed on the inner side of the upper shell 6, and there are a coil and a counting chip single-chip microcomputer on the circuit board 10. The circuit board 10 is located above the sensor induction board 7. When the sensor induction board 7 rotates to measure the length of the tape 3, the sensor induction board 7 and the circuit board 10 are set at a corresponding distance to achieve radio communication. When the distance between the two is smaller, the receiving and sending signals are more stable. The circuit board 10 is also provided with an LED to display information numbers, and the digital information can be displayed by installing an LCD screen on the upper shell 6.

[0043] The working principle of the utility model intelligent digital measuring ruler is: when the measuring tape box is pulled and the winding box is rotated to rotate the sensor induction board, the coil on the sensor induction board and the circuit board coil form a magnetic field flux, and the sensor induction board sends radio signals of different frequencies, and then the chip receives the radio frequency signal and sends it to the main control IC, and the length of the measuring tape is calculated through the algorithm stored in the chip and displayed on the LED on the PCB board or the LCD liquid crystal display screen.

[0044] Before leaving the factory, the inductive sensor of the inductive measuring ruler calibrates the assembled measuring ruler and pulls out the tape to expand it. The length of the tape corresponding to the expansion is measured for each N (N≥2) pitch length, and the angle of each N pitch of the inductive sensor and the length of the tape expanded are stored in the single-chip microcomputer in a one-to-one correspondence, forming an electronic digital scale of the tape in the single-chip microcomputer. During measurement, the single-chip microcomputer sends out radio signals of different frequencies according to the rotation of the inductive sensor, and then the chip receives the radio frequency signal. The length value corresponding to the inductance rotation angle value is read from the single-chip microcomputer through the algorithm formula stored in the chip, and the measurement can be achieved. Calibration in the above way can overcome the accuracy error introduced by the inconsistent circumference of each winding of the tape. The smaller the N value, the higher the accuracy of the digital tape.

[0045] The utility model has the following beneficial effects through the design of the above embodiments: by installing and fixing the inductive sensor induction board on the ruler box, winding box and shell cover, the sensor induction board driven by the ruler box, winding box and shell cover when rotating needs to be stable up and down to make the measurement more accurate, and by inserting the latch rod downward into the fixing of the lower shell, the ruler box, winding box, shell cover and sensor induction board can stably output radio frequency signals to the chip on the circuit board for calculation; the structure occupies a small space, the product is small and convenient to carry, and it is very convenient to measure the home in daily life and to measure the body when going out for fitness. Through intelligent digital measurement, people can save a lot of time and have a good experience. The product is small in size, light and easy to carry. While meeting people's daily use, the product structure and manufacturing process are simple and can be mass-produced. On the basis of the traditional tape measure structure, it only needs to install sensors, single-chip microcomputers and chip storage algorithms on the internal ruler box to send radio signals of different frequencies to the chip through the sensor induction board to calculate the length and distance of the tape measure.

[0046] The present invention is described according to specific embodiments, but those skilled in the art should understand that various changes and equivalent substitutions can be made without departing from the scope of the present invention. In addition, in order to adapt to specific occasions of the present invention technology, many modifications can be made to the present invention without departing from its protection scope. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all embodiments that fall within the scope of protection of the claims.

Claims

1. An intelligent digital measuring ruler, characterized in that: include: A lower shell (1), a ruler box reel box (2), a measuring tape (3), a shell cover (4), a latch rod (5), an upper shell (6), and a sensor sensing plate (7); a fixed column (20) is fixedly connected to the inner side of the lower shell (1); a rotatable ruler box reel box (2) is axially arranged on the outer side of the fixed column (20); the ruler box reel box (2) is rotatably connected to the fixed column position on the inner side of the lower shell (1); a pre-tightening spring (11) is arranged in the ruler box reel box (2); the measuring tape (3) is arranged on the outer circumference of the ruler box reel box (2); the shell cover (4) is arranged on the upper end of the ruler box reel box (2); and a first The sensor sensing plate (7) is provided at the upper ends of the ruler box winding box (2) and the shell cover (4), and the latch rod (5) is also provided at the upper ends of the ruler box winding box (2) and the shell cover (4). The latch rod (5) passes through the shell cover (4) and the inner through hole of the ruler box winding box (2). The latch rod (5) is connected to the inner side of the fixing column (20) and is fixed by the rib position (40). The sensor sensing plate (7) communicates with the fixed circuit board inside the upper shell (6) to obtain the rotation length of the ruler box winding box (2) and thus obtain the length of the measuring tape (3).

2. The intelligent digital measuring ruler according to claim 1, characterized in that: An opening (30) is provided at the upper end of the ruler box winding box (2), and an extension block (31) is provided on the outer periphery of the shell cover (4). The extension block (31) protrudes downward in a circumference. The outer periphery of the shell cover (4) is placed in the ruler box winding box (2), and the extension block (31) is connected and fixed at a position corresponding to the opening (30).

3. The intelligent digital measuring ruler according to claim 1, characterized in that: The ruler box and winding box (2) are provided with a first protruding block (41) and a second protruding block (42); the first protruding block (41) is provided with a first opening (43); the second protruding block (42) is provided with a second opening (44); the first opening (43) is used to avoid the first protruding block (41); and the second opening (44) is used to avoid the second protruding block (42).

4. The intelligent digital measuring ruler according to claim 1, characterized in that: A protruding cylinder (22) is provided on the inner side of the shell cover (4), a third opening (23) is provided on the outer side of the protruding cylinder (22), and the sensor induction plate (7) is fixedly connected above the shell cover (4).

5. The intelligent digital measuring ruler according to claim 4, characterized in that: A second through hole (60) is provided on the inner side of the sensor induction plate (7) and is interlacedly connected to the cylinder (22) on the shell cover (4).

6. The intelligent digital measuring ruler according to claim 3, characterized in that: The latch rod (5) is vertical, a fourth opening (61) is provided inside the latch rod (5), and bumps (121) are provided on both sides of the lower end of the latch rod (5).

7. The intelligent digital measuring ruler according to claim 6, characterized in that: A winding spring (11) is installed inside the ruler box winding box (2), one end of the winding spring (11) is fixed on the first protruding block (41) at its outer end, and the middle end is fixed through the fourth opening (61) inside the latch rod (5), and the outer periphery of the ruler box winding box (2) is connected to the measuring tape (3), one end of the measuring tape (3) is snap-fitted and fixed on the second protruding block (42), and the other end is output outside the housing.

8. The intelligent digital measuring ruler according to claim 1, characterized in that: The fixing column (20) is fixedly connected to the inner side of the lower shell (1), and the outer side of the fixing column (20) is rotatably connected to the ruler box winding box (2). The inner side of the fixing column (20) is fixedly connected to the winding spring (11), and the upper end of the ruler box winding box (2) is fixedly connected to the shell cover (4), and the upper end is fixed to the sensor sensing plate (7).

9. The intelligent digital measuring ruler according to claim 1, characterized in that: The latch rod (5) passes through the inner through hole of the sensor sensing plate (7), the inner through hole of the shell cover (4) and the lower through hole of the ruler box winding box (2) and is connected to the fixing column (20) on the inner side of the lower shell (1) and is limited by the rib position (40).

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