Measuring tape

Abstract

The invention relates to a measuring tape, and belongs to the technical field of length measuring equipment, the measuring tape comprises a shell and a measuring tape belt rolled in the shell, a rolling shaft is rotatably arranged in the shell, the measuring tape belt is rolled on the rolling shaft, an installation groove is formed in the outer side of the shell, an electronic writing board is embedded in the shell and located in the installation groove, and the electronic writing board is arranged in the shell. The electronic board is flush with the surface of the shell, a battery is arranged at the position, close to one side of the electronic writing board, of the inner side of the shell, the battery is electrically connected with the electronic writing board, the shell is further provided with a writing pen, and the writing pen is used for writing on the electronic writing board; a brake part is arranged outside the shell and used for limiting the winding speed of the measuring tape belt. The method has the effect of facilitating data recording.

Description

Technical Field

[0001] The present application relates to the technical field of length measuring equipment, and in particular to a measuring tape. Background Art

[0002] The tape measure is a common measuring tool in daily life. The common steel tape measure is a common tool for construction and decoration, and it is also one of the essential tools for the family. The tape measure can be rolled up because there is a spring inside the tape measure. When it is pulled out to measure the length, the length of the ruler and the spring is actually lengthened. Once the measurement is completed, the spring inside the tape measure will automatically shrink, and the ruler will also shrink under the action of the spring force. The head of the tape measure is loose to facilitate our measurement. There are two ways to measure the size of the tape measure, one is to hang it on the object, and the other is to push it against the object.

[0003] However, when using a test paper to measure the length, most workers will use pen and paper to record the measured data, but they often cannot find the pen and paper or lose the paper with the data during the work process, which makes recording very inconvenient. Summary of the invention

[0004] To facilitate data recording, the present application provides a tape measure.

[0005] The present application provides a tape measure that adopts the following technical solution: A tape measure comprises a shell and a tape measure belt wound up in the shell, a winding shaft is rotatably arranged in the shell, and the tape measure belt is wound up on the winding shaft, a mounting groove is provided on the outer side of the shell, an electronic writing board is embedded on the shell and located in the mounting groove, the electronic board is flush with the shell surface, a battery is arranged on the inner side of the shell and close to one side of the electronic writing board, the battery is electrically connected to the electronic writing board, a writing pen is also arranged on the shell, and the writing pen is used for writing on the electronic writing board; a brake is arranged on the outside of the shell, and the brake is used to limit the winding speed of the tape measure belt.

[0006] Optionally, the electronic writing board is provided with a clear key, and the clear key is used to clear the recorded content on the electronic writing board.

[0007] Optionally, the writing pen is located at the back of the shell away from the outlet of the measuring tape.

[0008] Optionally, a placement groove is provided on the back of the shell away from the outlet of the measuring tape, and the writing pen is clipped into the placement groove.

[0009] Optionally, a clamping rod is fixedly provided on the shell and located in the placement slot, the clamping rod is fixedly provided on the side wall of the placement slot, the clamping rod is L-shaped, the suspended end of the clamping rod is opposite to the bottom wall of the placement slot and is used to clamp the writing pen and place it in the placement slot.

[0010] Optionally, a limit key is provided on the shell, and the limit key includes a pushing block slidably arranged on the outside of the shell and a limit plate arranged in the shell and fixedly arranged on the pushing block. The pushing block slides along the arc direction of the shell, and the pushing block drives the limit plate to slide and abut the tape measure to the inside of the shell to fix the tape measure.

[0011] Optionally, an abutment platform is provided in the shell, and the limiting plate and the abutment platform are respectively located on both sides of the measuring tape, and the limiting plate moves toward the measuring tape to press the measuring tape onto the abutment platform.

[0012] Optionally, the end of the limit plate is bent into an L shape in a direction away from the measuring tape. Optionally, the pushing block is located outside the shell and the surface used to be pushed is provided with anti-slip grooves.

[0013] Optionally, a fixing plate is provided at the end of the measuring tape located outside the shell, and the fixing plate spans the outlet of the measuring tape and is clamped on the outside of the outlet.

[0014] In summary, the present application includes at least one of the following beneficial technical effects: 1. When measuring the length, fix the free end of the measuring tape on the object to be measured, then pull the housing, the measuring tape moves out of the housing, and the length is measured; after the length is measured, the measured data is recorded. When recording the measured data, take out the writing pen on the housing and record the length on the electronic writing board, so as to facilitate the recording of the measured data; 2. When the measuring tape is retracted, the speed of the measuring tape increases continuously under the action of the winding spring inside the shell, causing the measuring tape to shake easily and cut the measurement personnel, and the free end of the measuring tape exerts a greater impact force on the shell. Therefore, under the action of the brake, the winding speed of the measuring tape is controlled so that the measuring tape can be wound more smoothly in the shell, thereby improving the safety of the measurement personnel and reducing the possibility of damage to the measuring tape and the shell, thereby extending the service life of the measuring tape. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of a tape measure in an embodiment of the present application; Figure 2 is a side view of a tape measure according to an embodiment of the present application; Figure 3 It is an exploded schematic diagram of a housing and an electronic writing board in a tape measure according to an embodiment of the present application; Figure 4 It is a schematic diagram of the structure of a measuring tape in a measuring tape in an embodiment of the present application; Figure 5 It is a structural schematic diagram of a shell in a tape measure in an embodiment of the present application; Figure 6This is a schematic diagram of the internal structure of a shell in a tape measure in an embodiment of the present application; Figure 7 It is a schematic diagram of the structure of a brake component in a measuring tape according to an embodiment of the present application; Figure 8 It is a side view of a brake component in a measuring tape according to an embodiment of the present application.

[0016] Description of reference numerals: 1, housing; 2, tape measure; 3, reel; 4, mounting slot; 5, electronic writing board; 6, battery; 7, writing pen; 8, clear key; 9, placement slot; 10, clamping rod; 11. limit key; 111. push block; 112. limit plate; 113. abutment platform; 12. Installation port; 13. Anti-slip pattern; 14. Fixing plate; 15. Braking member; 151. Rectangular frame; 152. Braking roller; 153. Door frame; 154. Spring; 16. Concave inside; 17. Convex outside; 18. Rubber sheet; 19. Protective plate. DETAILED DESCRIPTION

[0017] The following is combined with Figure 1-8 This application is described in further detail.

[0018] The present application embodiment discloses a tape measure. Figure 1 and Figure 2 The tape measure with a writing board includes a shell 1 and a tape measure 2 wound in the shell 1. A winding shaft 3 is rotatably arranged in the shell 1. Further, a coil spring is sleeved on the winding shaft 3 in the shell 1. The other side of the coil spring is fixedly arranged in the shell 1. The coil spring drives the winding shaft 3 to have a rotating movement tendency. The tape measure 2 is wound on the winding shaft 3. An installation groove 4 is opened on the outer side of the shell 1. An electronic writing board 5 is embedded in the shell 1 and located in the installation groove 4. The electronic writing board 5 is flush with the surface of the shell 1. Figure 3 A battery 6 is arranged inside the housing 1 and near one side of the electronic writing board 5. The battery 6 is electrically connected to the electronic writing board 5. A writing pen 7 is also arranged on the housing 1. The writing pen 7 is used to write on the electronic writing board 5. When measuring the length, the free end of the measuring tape 2 is fixed on the measured object, and then the housing 1 is pulled, and the measuring tape 2 is removed from the housing 1 to measure the length. After the length measurement, the measured data is recorded. When the measured data is recorded, the writing pen 7 on the housing 1 is taken out and the length is recorded on the electronic writing board 5, so as to facilitate the recording of the measured data. And under the action of the mounting groove 4, the installation of the electronic writing board 5 is facilitated, so as to facilitate the recording of the measured data; at the same time, the electronic writing board 5 is flush with the surface of the housing 1. When the housing 1 is placed, the possibility of wear on the writing surface of the electronic writing board 5 is reduced, and the possibility of damage to the electronic writing board 5 is reduced.

[0019] Reference Figure 4 In order to facilitate clearing the recorded data on the electronic writing board 5, a clear key 8 is provided on the electronic writing board 5. The clear key 8 is used to clear the recorded content on the electronic writing board 5. The clear key 8 is communicated with the writing surface of the electronic writing board 5. When the data on the electronic writing board 5 is large and messy, the records on the electronic writing board 5 can be cleared by touching the clear key 8, which facilitates repeated recording of data.

[0020] Reference Figure 2 Furthermore, in order to facilitate the taking of the writing pen 7, the writing pen 7 is located at the back of the shell 1 away from the outlet of the measuring tape 2; after the surveyor holds the measuring tape to measure the length, because the back of the shell 1 faces the surveyor, the surveyor removes the writing pen 7 from the shell 1 and then writes, which makes it easier for the surveyor to take the writing pen 7.

[0021] Reference Figure 2 In order to facilitate the installation of the writing pen 7 on the housing 1, a placement groove 9 is opened on the back of the housing 1 away from the outlet of the measuring tape 2, and the writing pen 7 is snapped into the placement groove 9; the writing pen 7 is snapped into the placement groove 9, which is convenient for taking and storing the writing pen 7.

[0022] Reference Figure 2 In order to reduce the possibility of the writing pen 7 falling from the installation groove 4, a clamping rod 10 is fixedly provided on the shell 1 and located in the placement groove 9. The clamping rod 10 is fixedly provided on the side wall of the placement groove 9. The clamping rod 10 is L-shaped. The suspended end of the clamping rod 10 is opposite to the bottom wall of the placement groove 9 and is used to clamp the writing pen 7 and place it in the placement groove 9; after the writing pen 7 is placed in the placement groove 9, the writing pen 7 is clamped between the clamping rod 10 and the bottom wall of the placement groove 9, thereby reducing the possibility of the writing pen 7 falling.

[0023] Reference Figure 4 , Figure 5 and Figure 6After the measuring tape 2 measures the length, the housing 1 is placed on the object to be measured. At this time, under the action of the winding spring, the housing 1 is moved to reel in the measuring tape 2. Therefore, in order to temporarily fix the measuring tape 2 and read the data, a limit key 11 is provided on the housing 1. The limit key 11 includes a push block 111 slidably arranged on the outside of the housing 1 and a limit plate 112 arranged in the housing 1 and fixed on the push block 111. The push block 111 slides along the arc direction of the housing 1. Further, the housing 1 is provided with an installation opening 12, a pushing block 111 is located in the installation opening 12, and one side is located outside the shell 1, and the other side is located inside the shell 1, the pushing block 111 drives the limiting plate 112 to slide and abut against the measuring tape 2 to the inside of the shell 1 to fix the measuring tape 2; after the measuring tape 2 is moved out, the measurement personnel pushes the pushing block 111, the pushing block 111 drives the limiting plate 112 to move, the limiting plate 112 moves toward the measuring tape 2 and is pressed on the measuring tape 2, so that the measuring tape 2 is fixed at the above position, and it is convenient to read the measurement data.

[0024] Reference Figure 4 , Figure 5 and Figure 6 In order to improve the fixing effect of the limiting plate 112 on the measuring tape 2, an abutment platform 113 is provided in the shell 1, and the limiting plate 112 and the abutment platform 113 are respectively located on both sides of the measuring tape 2, and the limiting plate 112 moves toward the measuring tape 2 and presses the measuring tape 2 to the abutment platform 113; when the pushing block 111 drives the limiting plate 112 to move, the limiting plate 112 drives the measuring tape 2 to move toward the abutment platform 113 and presses the measuring tape 2 to the abutment platform 113, thereby improving the fixing effect of the measuring tape 2.

[0025] Reference Figure 4 , Figure 5 and Figure 6 Furthermore, in the embodiment of the present application, the end of the limiting plate 112 is bent into an L-shape in a direction away from the measuring tape 2; the end of the limiting plate 112 is bent, which increases the contact area between the limiting plate 112 and the measuring tape 2, thereby improving the fixing effect of the measuring tape 2.

[0026] Reference Figure 4 To facilitate the pushing of the pushing block 111 , the pushing block 111 is located outside the housing 1 and the surface used to be pushed is provided with anti-slip grooves 13 .

[0027] Reference Figure 1 In the embodiment of the present application, a fixing plate 14 is provided at the end of the measuring tape 2 located on the outside of the shell 1, and the fixing plate 14 spans the outlet of the measuring tape 2 and is clamped on the outside of the outlet; both sides of the fixing plate 14 are clamped on the shell 1, so that after the measuring tape 2 is recovered into the shell 1, the impact force of the fixing plate 14 on the shell 1 is more evenly distributed on both sides of the shell 1, thereby reducing the possibility of damage to the measuring tape 2 and the shell 1.

[0028] In the embodiments of this application, refer to Figure 7 and Figure 8 A brake member 15 is provided outside the housing 1, and the brake member 15 is used to limit the winding speed of the measuring tape 2. The brake member 15 includes a rectangular frame 151 provided at the opening of the housing 1, and the measuring tape 2 is located in the rectangular frame 151. The brake member 15 also includes two brake rollers 152 provided in the rectangular frame 151. The two brake rollers 152 are both rotatably provided in the rectangular frame 151. The two brake rollers 152 are parallel to each other and perpendicular to the measuring tape 2. The two brake rollers 152 are arranged up and down. The peripheral wall of the brake roller 152 located at the bottom is concave 16 and is in arc shape and consistent with the bottom curvature of the measuring tape 2. The peripheral wall of the brake roller 152 located at the top is convex 17 and consistent with the top curvature of the measuring tape 2. Further, the position The brake roller 152 at the top is slidably arranged in the rectangular frame 151, and the brake roller 152 slides in a direction perpendicular to the length of the measuring tape 2. A gate frame 153 is slidably arranged on the top of the rectangular frame 151, and the brake roller 152 at the top is rotatably arranged in the gate frame 153, and the gate frame 153 is slidably penetrated on the rectangular frame 151; when the winding speed of the measuring tape 2 is limited, the gate frame 153 is pressed, and the gate frame 153 drives the brake roller 152 at the top to move toward the measuring tape 2, so that the brake roller 152 at the top is pressed against the measuring tape 2. At this time, when the winding spring drives the measuring tape 2 to be retracted, the friction between the brake roller 152 and the measuring tape 2 reduces the winding speed of the measuring tape 2.

[0029] Reference Figure 7 and Figure 8 Furthermore, in the embodiment of the present application, a spring 154 is arranged between the door frame 153 and the rectangular frame 151, and the length direction of the spring 154 is perpendicular to the brake roller 152. One side of the spring 154 is fixedly arranged at the bottom of the door frame 153, and the other side is fixedly arranged at the top of the rectangular frame 151. The spring 154 drives the door frame 153 to have a movement tendency away from the rectangular frame 151; under the action of the spring 154, the door frame 153 is driven to drive the brake roller 152 located above to separate from the measuring tape 2, thereby facilitating the removal of the measuring tape 2.

[0030] Reference Figure 7 and Figure 8 Furthermore, the arc surfaces of the two brake rollers 152 are provided with rubber plates 18, and the rubber plates 18 are in contact with the arc surfaces of the brake rollers 152. Under the action of the rubber plates 18, the friction between the brake rollers 152 and the measuring tape 2 is increased, thereby facilitating the limiting of the winding speed of the measuring tape 2.

[0031] Reference Figure 7 and Figure 8Furthermore, a buffer ring is provided on the straight section of the brake roller 152 , and the buffer ring is sleeved on the brake roller 152 . When the measuring tape 2 is recovered, the fixing plate 14 abuts against the buffer ring, thereby reducing the possibility of the fixing plate 14 damaging the housing 1 .

[0032] Reference Figure 7 and Figure 8 When the measuring tape 2 is rolled up, it is usually difficult to retract it into the shell 1 in a straight direction, and when the speed is high, the measuring tape 2 is easy to bend and move quickly toward the side of the shell 1. Therefore, in the embodiment of the present application, a protective plate 19 is provided on the side of the shell 1, and the protective plate 19 is close to the opening side of the shell 1, and the protective plate 19 is perpendicular to the side of the shell 1; under the action of the protective plate 19, the measuring tape 2 is blocked, thereby reducing the possibility of the offset measuring tape 2 scratching the measurement personnel; further, the protective plate 19 is bent in an arc shape in the direction away from the measuring tape, and the arc-shaped protective plate 19 increases the protection area for the measurement personnel, such as fingers, etc., and further improves the safety of the measurement personnel.

[0033] Reference Figure 7 and Figure 8 In order to reduce the possibility of damage to the electronic writing board 5 due to wear, in the embodiment of the present application, a cover plate is hingedly provided on the shell 1, and the hinge axis of the cover plate is located in the installation groove 4. The cross-section of the cover plate is consistent with that of the installation groove 4 and is transparent; under the action of the cover plate, the electronic writing board 5 is buckled into the installation groove 4, thereby isolating the electronic writing board 5 from the external environment, thereby reducing the possibility of damage to the electronic writing board 5.

[0034] The implementation principle of a tape measure in the embodiment of the present application is: When measuring the length, the free end of the measuring tape 2 is fixed on the object to be measured, and then the housing 1 is pulled, and the measuring tape 2 is moved out of the housing 1 to measure the length; after the length is measured, the measured data is recorded. When recording the measured data, the writing pen 7 on the housing 1 is taken out, and the length is recorded on the electronic writing board 5, so as to facilitate the recording of the measured data. And under the action of the installation slot 4, it is convenient to install the electronic writing board 5, so as to facilitate the recording of the measured data; at the same time, the electronic writing board 5 is flush with the surface of the housing 1, and when the housing 1 is placed, the possibility of wear on the writing surface of the electronic writing board 5 is reduced, and the possibility of damage to the electronic writing board 5 is reduced; when the measuring tape 2 is rolled up, the door frame 153 is pressed, and the door frame 153 drives the upper brake roller 152 to move toward the measuring tape 2, so that the upper brake roller 152 is pressed on the measuring tape 2. At this time, when the winding spring drives the measuring tape 2 to be retracted, the friction between the brake roller 152 and the measuring tape 2 reduces the rolling speed of the measuring tape 2. The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A tape measure, characterized in that: The invention comprises a shell (1) and a measuring tape (2) wound up in the shell (1); a winding shaft (3) is rotatably arranged in the shell (1), and the measuring tape (2) is wound up on the winding shaft (3); a mounting groove (4) is provided on the outer side of the shell (1); an electronic writing board (5) is embedded in the mounting groove (4) on the shell (1); the electronic board is flush with the surface of the shell (1); a battery (6) is arranged on the inner side of the shell (1) and close to one side of the electronic writing board (5); the battery (6) is electrically connected to the electronic writing board (5); a writing pen (7) is also arranged on the shell (1); the writing pen (7) is used for writing on the electronic writing board (5); a brake component (15) is arranged on the outside of the shell (1); the brake component (15) is used to limit the winding speed of the measuring tape (2).

2. A tape measure according to claim 1, characterized in that: The electronic writing board (5) is provided with a clear key (8), and the clear key (8) is used to clear the recorded content on the electronic writing board (5).

3. A tape measure according to claim 1, characterized in that: The writing pen (7) is located at the back of the housing (1) away from the outlet of the measuring tape (2).

4. A tape measure according to claim 3, characterized in that: A placement groove (9) is provided on the back of the housing (1) away from the outlet of the measuring tape (2), and the writing pen (7) is clamped in the placement groove (9).

5. A tape measure according to claim 4, characterized in that: A clamping rod (10) is fixedly arranged on the housing (1) and located in the placement groove (9); the clamping rod (10) is fixedly arranged on the side wall of the placement groove (9); the clamping rod (10) is L-shaped; the suspended end of the clamping rod (10) faces the bottom wall of the placement groove (9) and is used to clamp the writing pen (7) and place it in the placement groove (9).

6. A tape measure according to claim 1, characterized in that: The housing (1) is provided with a limit key (11), the limit key (11) comprising a push block (111) slidably arranged on the outside of the housing (1) and a limit plate (112) arranged in the housing (1) and fixedly arranged on the push block (111), the push block (111) slides along the arc direction of the housing (1), and the push block (111) drives the limit plate (112) to slide and abut against the measuring tape (2) to the inside of the housing (1) to fix the measuring tape (2).

7. A measuring tape according to claim 6, characterized in that: An abutment platform (113) is arranged in the housing (1), the limiting plate (112) and the abutment platform (113) are respectively located on two sides of the measuring tape (2), and the limiting plate (112) moves toward the measuring tape (2) to press the measuring tape (2) onto the abutment platform (113).

8. A tape measure according to claim 7, characterized in that: The end of the limiting plate (112) is bent into an L shape in a direction away from the measuring tape (2).

9. A measuring tape according to claim 6, characterized in that: The pushing block (111) is located outside the housing (1) and a surface used for being pushed is provided with anti-slip grooves (13).

10. A measuring tape according to claim 1, characterized in that: A fixing plate (14) is provided at the end of the measuring tape (2) located outside the housing (1); the fixing plate (14) spans the outlet of the measuring tape (2) and is clamped on the outside of the outlet.

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