Automatic locking measuring tape
By introducing an automatic locking mechanism into the tape measure, the tape strip is locked by shrapnel and pressurized blocks, the problem of unstable use of the tape measure is solved, and the safety and convenience of use is improved.
Patent Information
- Application Number
- CN202323627584.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-28
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2033-12-28
AI Technical Summary
During use, existing tape measure is prone to cause the ruler belt to fall off the shell due to swing, causing unstable use and may cause scratches.
An automatic locking tape measure is designed. By setting a pressing block and shrapnel on the shell, the shrapnel drives the pressing block to press the ruler belt, thereby locking the ruler belt, reducing the risk of disengagement, and implementing the button through the cooperation of the rotating shaft and the drive plate. Convenient operation and stable fixation.
It effectively reduces the disengagement of the ruler belt, improves the stability and convenience of the tape measure, and reduces damage and safety hazards caused by operating errors.
Smart Images
Figure CN222143944U_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of length measuring tools, and in particular to an automatic locking measuring tape. Background Art
[0002] A tape measure is a commonly used tool for measuring length.
[0003] In the prior art, a tape measure generally includes a housing, a tape, a tape tube, and a tape hook. The tape is arranged in the housing, one end of the tape is fixed to the tape tube, and the other end of the tape is fixed to the tape hook, and the tape tube automatically receives the tape through a coil spring. The tape measure generally also includes a brake structure. After measuring the length of an object, the brake structure on the housing is operated to press and fix the tape, making it easier to read.
[0004] The brake structure is normally in the closed state. When the tape measure is swung, the tape can easily be pulled out of the casing by the hook, causing scratches to the staff. There is still room for improvement. Utility Model Content
[0005] In order to improve the stability of the tape measure during use and to automatically lock the tape, the present application provides an automatically locking tape measure.
[0006] An automatic locking tape measure comprises a shell and a tape arranged in the shell, wherein a pressing block for pressing and fixing the tape is hinged on the shell, a rotating shaft for rotationally connecting the pressing block is arranged on the shell, a spring piece for driving the pressing block to press the tape is arranged on the shell, a spring piece cavity for installing the spring piece is opened on the shell, one end of the spring piece presses against the shell, and the other end of the spring piece presses against the pressing block.
[0007] By adopting the above technical solution, one end of the spring piece presses against the shell, and the other end of the spring piece presses against the pressing block, thereby driving the pressing block to press against the tape. The pressing block keeps pressing against the tape, thereby locking the tape and reducing the detachment of the tape, thereby improving the stability of the tape measure.
[0008] Preferably, a driving plate is provided on the pressing block, the rotating shaft is located between the driving plate and the pressing block, and a button for pressing the driving plate to separate the pressing block from the ruler is hinged on the housing.
[0009] By adopting the above technical solution, after pressing the button, the button presses the drive plate, thereby driving the pressing block to rotate and then disengage from the tape, releasing the locking of the tape by the pressing block, thereby improving the convenience of using the tape measure.
[0010] Preferably, the button is symmetrically provided with limiting protrusions, the limiting protrusions limit the button in the housing, and the driving sheet drives the button to press against the outside to fix the button.
[0011] By adopting the above technical solution, one end of the button is hinged to the shell, and the other end of the button is pressed against the shell through the limiting protrusion, and the driving plate presses the button, thereby fixing the button on the shell, reducing the button from detaching from the shell, thereby improving the stability of the tape measure when used.
[0012] Preferably, a guide block for guiding the sliding movement of the driving plate is integrally provided on the button.
[0013] By adopting the above technical solution, the guide block conflicts with the drive plate. When the button is pressed, the guide block drives the drive plate to rotate around the rotation axis. At the same time, the drive plate and the button are misaligned and slip. The continuity of the slip is improved by the guide block, thereby improving the stability of the tape measure.
[0014] Preferably, the button is provided with a pressing groove for hand contact.
[0015] By adopting the above technical solution, when the button is pressed, the hand contacts the bottom surface of the pressing groove, thereby increasing the friction between the button and the hand, reducing the slippage of the hand on the button, and improving the stability of the tape measure.
[0016] Preferably, the button is provided with anti-skid patterns, and the anti-skid patterns are located in the pressing groove.
[0017] By adopting the above technical solution, when the button is pressed, the hand contacts the anti-slip pattern, thereby increasing the friction between the button and the hand, reducing the slippage of the hand on the button, and improving the stability of the tape measure.
[0018] Preferably, a pressing cavity for pressing the tape is provided on the pressing block, and the width of the pressing cavity is gradually reduced from a side close to the tape to a side far from the tape.
[0019] By adopting the above technical solution, when the pressure block presses the tape, the edge of the tape is pressed by the pressing cavity, which reduces the possibility of damage to the tape caused by the pressure block, thereby improving the stability of the tape measure.
[0020] Preferably, a light-transmitting cover is provided on a side of the shell away from the penetration opening, and limit strips are symmetrically provided on the light-transmitting cover. A limit cavity for the limit strip to limit the position is provided on the shell.
[0021] By adopting the above technical solution, when the tape measure fails, the internal structure of the tape measure can be observed through the light-transmitting cover to preliminarily determine the cause of the failure. The light-transmitting cover is fixed by the limit strip and the limit cavity, thereby reducing the slippage of the light-transmitting cover on the outer shell, thereby improving the stability of the tape measure.
[0022] Preferably, a reel is provided in the housing, a mounting plate is provided on the reel, a snap-fit piece is provided on the reel, a deformation groove for deformation of the snap-fit piece is provided on the reel, and a snap-fit groove for the snap-fit piece to be snapped is provided on the mounting plate.
[0023] By adopting the above technical solution, the deformation groove is arranged around the clamping piece, thereby improving the deformation ability of the clamping piece, and the clamping piece and the clamping groove cooperate to reduce the separation of the mounting plate from the reel, thereby improving the stability of the tape measure.
[0024] Preferably, a limiting block is arranged on the mounting plate, and a limiting groove for installing the limiting block is opened on the reel.
[0025] By adopting the above technical solution, the limit block cooperates with the limit groove, thereby reducing the circumferential rotation of the mounting plate on the reel when the reel rotates, improving the stability of the installation of the mounting plate and the reel, and thus improving the stability of the use of the tape measure.
[0026] In summary, the present application includes at least one of the following beneficial technical effects:
[0027] 1. The spring sheet presses the pressing block to tighten the tape, reducing the tape from detaching, thereby improving the convenience of using the tape measure;
[0028] 2. The tape is compressed by the compression cavity to reduce the pressure damage of the tape, thereby improving the stability of the tape measure;
[0029] 3. The inner condition of the measuring tape can be observed through the light-transmitting cover, thus improving the convenience of using the measuring tape. BRIEF DESCRIPTION OF THE DRAWINGS
[0030] Figure 1 It is a structural schematic diagram of an automatic locking tape measure in an embodiment of the present application.
[0031] Figure 2 This is a schematic diagram of the installation of the tape measure.
[0032] Figure 3 yes Figure 2 An enlarged schematic diagram of section A of the middle housing.
[0033] Figure 4 It is a schematic diagram of the installation of the reel.
[0034] Figure 5 is a cross-sectional view of a measuring tape.
[0035] Explanation of the reference numerals in the accompanying drawings: 1. housing; 2. tape; 3. mounting cavity; 4. insertion opening; 5. pressing block; 6. spring; 7. spring cavity; 8. button; 9. driving plate; 10. limiting protrusion; 11. reel; 12. fixed shaft; 13. insertion hole; 14. coil spring; 15. coil spring cavity; 16. limiting plate; 17. mounting groove; 18. snap ring; 19. guide surface; 20. ruler hook; 21. mounting plate; 22. snap plate; 23. deformation groove; 24. snap groove; 25. limiting block; 26. limiting groove; 27. light-transmitting cover; 28. limiting strip; 29. limiting cavity; 30. protective cover; 31. pressing cavity; 32. rotating shaft; 33. pressing groove; 34. guide block; 35. anti-slip texture. DETAILED DESCRIPTION
[0036] The following is combined with Figure 1-5 This application is described in further detail.
[0037] Reference Figure 1 and Figure 2 The embodiment of the present application discloses an automatic locking tape measure, including a housing 1. The housing 1 is divided into two halves, and the housing 1 is fixedly connected by screws. A reel 11 is arranged in the housing 1, and a mounting cavity 3 for mounting the reel 11 is provided on the housing 1. A button 8 is arranged on the housing 1, and a rotating shaft 32 for mounting the button 8 is integrally provided on the housing. One end of the button 8 is hinged through the rotating shaft 32 on the housing 1, and a limiting protrusion 10 is symmetrically arranged on the other end of the button 8. The housing 1 is pressed against the limiting protrusion 10, so that the button 8 is limited in the housing 1.
[0038] Reference Figure 1 and Figure 2 The button 8 is provided with a pressing groove 33, the pressing groove 33 is concave, and the button 8 is provided with an anti-skid pattern 35, and the anti-skid pattern 35 is located in the pressing groove 33. The button 8 is integrally provided with a guide block 34 with a guide surface.
[0039] Reference Figure 1 and Figure 2 The housing 1 is provided with a ruler hook 20, and a through hole 4 is provided on the housing 1 for the ruler hook 20 to penetrate, and the through hole 4 is connected with the installation cavity 3. A light-transmitting cover 27 is provided on the side of the housing 1 away from the ruler hook 20, and a limit strip 28 is symmetrically provided on the light-transmitting cover 27, and a limit cavity 29 is provided on the housing 1 for the limit strip 28 to be installed.
[0040] Reference Figure 1 and Figure 2 A protective cover 30 is provided on both the side of the housing 1 away from the ruler hook 20 and the side close to the ruler hook 20. The protective cover 30 is snap-fitted with the housing 1. The protective cover 30 on the side close to the ruler hook 20 is fixed to the housing 1 by screws, and the protective cover 30 on the side away from the ruler hook 20 is reinforced and connected to the housing 1 by acrylic structural adhesive.
[0041] Reference Figure 2 and Figure 3 A tape ruler 2 is arranged in the housing 1, one end of the tape ruler 2 is fixed to the ruler hook 20 by a screw, and the other end of the tape ruler 2 is fixed to the reel 11 by an acrylic structural adhesive. The tape ruler 2 can be a steel ruler or a tape measure. In this embodiment, a steel ruler is taken as an example.
[0042] Reference Figure 2 and Figure 3 A pressing block 5 for pressing the ruler hook 20 is provided in the housing 1, and the pressing block 5 is hinged by a rotating shaft 32 on the housing 1. A driving sheet 9 is integrally provided on the side of the pressing block 5 away from the ruler hook 20, and the driving sheet 9 contacts the guide block 34. A spring 6 for driving the pressing block 5 to press the ruler hook 20 is provided on the housing 1, one end of the spring 6 contacts the housing 1, and the other end of the spring 6 contacts the pressing block 5, and the spring 6 and the housing 1 are reinforced and connected by acrylic structural adhesive. A spring cavity 7 for installing the spring 6 is provided on the housing 1.
[0043] Reference Figure 2 and Figure 3 The pressing block 5 is provided with a pressing cavity 31, the width of which gradually decreases from the side close to the ruler tape 2 to the side away from the ruler tape 2. The width of the pressing cavity 31 close to the ruler tape 2 is greater than the width of the ruler hook 20, and the width of the pressing cavity 31 away from the ruler tape 2 is less than the width of the ruler hook 20. When the pressing block 5 presses the ruler hook 20, the pressing cavity 31 and the ruler hook 20 are pressed and fixed.
[0044] Reference Figure 4 and Figure 5 The housing 1 is provided with a fixed shaft 12 with a gap, and the reel 11 is rotatably connected on the fixed shaft 12. The reel 11 is provided with a coil spring 14, and the reel 11 is provided with a coil cavity for installing the coil spring 14. One end of the coil spring 14 is clamped in the gap of the fixed shaft 12, and the other end of the coil spring 14 is clamped on the reel 11.
[0045] Reference Figure 4 and Figure 5 The reel 11 is provided with a mounting plate 21 for closing the coil spring cavity 15, and a clamping piece 22 for fixing and connecting the mounting plate 21 is provided on the reel 11. In this embodiment, three groups of clamping pieces 22 are evenly arranged. The reel 11 is provided with a deformation groove 23 for the clamping piece 22 to deform, and the deformation groove 23 is arranged around the clamping piece 22. The mounting plate 21 is provided with a clamping groove 24 for the clamping piece 22 to engage with. The mounting plate 21 is provided with a limit block 25 integrally arranged on the mounting plate 21. In this embodiment, three groups of limit blocks 25 are evenly arranged. The limit blocks 25 and the clamping grooves 24 are staggered, and the spacing between adjacent limit blocks 25 and the clamping grooves 24 is equal. The reel 11 is provided with a limit groove 26 for the installation of the limit block 25.
[0046] Reference Figure 4 and Figure 5 The fixed shaft 12 is fixed to the housing 1 by screws. The housing 1 is provided with a through hole 13 for installing the fixed shaft 12. A limit plate 16 is provided on one side of the fixed shaft 12. The limit plate 16 is polygonal to reduce the circumferential rotation of the fixed shaft 12 on the housing 1. In this embodiment, a rectangular shape is used as an example. The housing 1 is provided with a mounting groove 17 for installing the limit plate 16. A clamping ring 18 is provided on the fixed shaft 12. The housing 1 is provided with a guide surface 19 for guiding the clamping ring 18. The clamping ring 18 first presses against the guide surface 19 to clamp and fix the fixed shaft 12 on the housing 1.
[0047] Usage process:
[0048] 1. Press the button 8 by hand, and the button 8 and the driving plate 9 are pressed against each other, thereby driving the pressing block 5 to rotate along the rotating shaft on the housing 1, and then detach from the ruler tape 2. At this time, the clamping cavity 31 detaches from the ruler hook 20, and the pressing block 5 presses the spring sheet 6 to deform the spring sheet 6, and the spring sheet 6 drives the pressing block 5 to increase its force.
[0049] 2. Pull the ruler hook 20 to pull out the ruler tape 2.
[0050] 3. Release the button 8. At this time, the spring piece 6 presses the driving block to press the ruler belt 2. The spring piece 6 recovers its shape. At this time, the ruler hook 20 enters the pressing cavity 31 and is pressed and fixed.
[0051] 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. An automatic locking tape measure, comprising a housing (1) and a tape (2) disposed in the housing (1), Features: A pressing block (5) for pressing against and fixing the ruler tape (2) is hingedly connected to the housing (1); a rotating shaft (32) for rotationally connecting the pressing block (5) is provided on the housing (1); a spring piece (6) for driving the pressing block (5) to press against the ruler tape (2) is provided on the housing (1); a spring piece cavity (7) for installing the spring piece (6) is provided on the housing (1); one end of the spring piece (6) presses against the housing (1), and the other end of the spring piece (6) presses against the pressing block (5).
2. An automatic locking measuring tape according to claim 1, Features: The pressing block (5) is provided with a driving plate (9), the rotating shaft (32) is located between the driving plate (9) and the pressing block (5), and the housing (1) is hinged with a button (8) for pressing the driving plate (9) to separate the pressing block (5) from the ruler (2).
3. An automatic locking measuring tape according to claim 2, Features: The button (8) is symmetrically provided with limiting protrusions (10), the limiting protrusions (10) limit the button (8) within the housing (1), and the driving plate (9) drives the button (8) to press against the outside to fix the button (8).
4. An automatic locking measuring tape according to claim 2, Features: The button (8) is integrally provided with a guide block (34) for guiding the driving plate (9) to slide.
5. An automatic locking measuring tape according to claim 2, Features: The button (8) is provided with a pressing groove (33) for hand contact.
6. An automatic locking measuring tape according to claim 5, Features: The button (8) is provided with an anti-slip pattern (35), and the anti-slip pattern (35) is located in the pressing groove (33).
7. An automatic locking measuring tape according to claim 1, Features: The pressing block (5) is provided with a pressing cavity (31) for pressing the ruler tape (2), and the width of the pressing cavity (31) is arranged to decrease from a side close to the ruler tape (2) to a side away from the ruler tape (2).
8. An automatic locking measuring tape according to claim 1, Features: A light-transmitting cover (27) is provided on a side of the housing (1) away from the penetration opening (4), and limit strips (28) are symmetrically provided on the light-transmitting cover (27). A limit cavity (29) for limiting the limit strips (28) is provided on the housing (1).
9. An automatic locking measuring tape according to claim 1, Features: A reel (11) is arranged in the housing (1), a mounting plate (21) is arranged on the reel (11), a clamping piece (22) is arranged on the reel (11), a deformation groove (23) for the clamping piece (22) to deform is arranged on the reel (11), and a clamping groove (24) for the clamping piece (22) to clamp is provided on the mounting plate (21).
10. An automatic locking measuring tape according to claim 9, Features: A limit block (25) is provided on the mounting plate (21), and a limit groove (26) for mounting the limit block (25) is provided on the reel (11).