Spring-free measuring tape

Abstract

The utility model relates to the technical field of measuring tapes, in particular to a spring-free measuring tape, which comprises a shell with an opening and a tape band, in an initial state, the tape band is naturally wound in the shell, the outer end of the tape band penetrates through the opening of the shell and is positioned on the outer side of the shell, and a hook is fixed at one end of the tape band positioned outside the shell. Complexity of a spring in a traditional measuring tape is avoided, the measuring tape is simpler in overall structure, smaller in size and lighter in weight, portability and use convenience are greatly improved, the tape band is made of metal materials, has high strength and good toughness and is not prone to deformation or damage, measurement accuracy and long-term use stability are guaranteed, and meanwhile the measuring tape is convenient to use. The winding shaft is stably connected with the shell, and the winding shaft is made of high-quality materials, so that the durability of the measuring tape is further enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of tape measures, in particular to a springless tape measure. Background Art

[0002] In the design of traditional tape measures, a spring is usually used as the rewinding power so that the tape can automatically rewind into the housing after measurement.

[0003] However, this design has some problems. First, the spring is prone to fatigue after long-term use, resulting in a weakened rewinding force, making it impossible for the tape to be completely rewound, affecting the user experience. Second, the presence of the spring increases the overall thickness and weight of the tape measure, which is not conducive to portability. In addition, the failure of the spring may also cause the tape to be unable to be fixed after being pulled out, resulting in inaccurate measurements or loss of the tape. For this reason, we propose a springless tape measure. Utility Model Content

[0004] A technical problem to be solved by the present application is to provide a springless tape measure with a simple structure, convenient operation, accurate measurement and durability.

[0005] To solve the above technical problems, an embodiment of the present application provides a springless tape measure, comprising a housing having an opening, and further comprising:

[0006] The tape ruler is naturally wound in the shell in the initial state, and the outer end passes through the shell opening and is located outside the shell, and a hook is fixed at one end located outside the shell.

[0007] In some embodiments, the tape is made of metal.

[0008] In some embodiments, a winding shaft is rotatably provided in the housing, and the tape is fixedly wound on the winding shaft.

[0009] In some embodiments, the shell has a hollow annular structure, the winding shaft is an I-shaped wheel, and is sleeved on the inner ring of the shell and rotatably connected to the inner ring of the shell through a bearing.

[0010] In some embodiments, the housing is composed of two half shells, and an insert is provided on the inner side of each of the two half shells for inserting into the other half shell respectively, so as to assemble the two half shells into one piece by means of interference fit;

[0011] The winding shaft and any half shell are detachable.

[0012] The utility model has at least the following beneficial effects:

[0013] 1. Simplified structure and improved portability: The springless design avoids the complexity of the spring in traditional tape measures, making the overall structure of the tape measure simpler, smaller in size, and lighter in weight, greatly improving portability and ease of use.

[0014] 2. Enhanced measurement accuracy and durability: The tape is made of metal material with high strength and good toughness. It is not easy to deform or damage, ensuring the accuracy of measurement and long-term stability. At the same time, the firm connection between the winding shaft and the shell, as well as the high-quality material of the winding shaft itself, further enhance the durability of the tape measure.

[0015] 3. Convenient operation: The tape is naturally wound inside the housing, and a hook is fixed on the outer end, which makes it convenient for users to quickly pull out and fix the tape for measurement. In addition, the rotating connection design between the winding shaft and the housing allows the tape to be smoothly pulled out and rewound, making operation more convenient.

[0016] 4. Easy to maintain and replace: The housing consists of two half shells, which are assembled as a whole by means of interference fit through plug-ins. This not only ensures a stable structure but also facilitates disassembly and maintenance. In addition, the detachable design of the winding shaft and either half shell makes it easy to replace the winding shaft or tape when necessary, thus reducing maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of Example 1 of the utility model;

[0018] Figure 2 For this utility model Figure 1 Schematic diagram of the structure of the middle shell after explosion;

[0019] Figure 3 This is a schematic diagram of the winding shaft and half-shell structure of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of a five-pointed star-shaped tape measure in Example 2 of the present utility model;

[0021] Figure 5 This is a schematic diagram of the structure of a heart-shaped tape measure in Example 2 of the present utility model.

[0022] In the figure: 1, shell; 11, half shell; 12, insert; 2, tape; 3, hook; 4, winding reel. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] Example 1: This utility model provides a technical solution: Please refer to Figure 1-Figure 2 As shown, a springless tape measure has a core component comprising a housing 1 with an opening and a tape 2.

[0025] In the initial state, the tape 2 is naturally wound inside the housing 1, and its outer end passes through the opening of the housing 1 and extends to the outside of the housing 1. A hook 3 is fixed on the outside for easy hanging and measurement.

[0026] With such a design, when measuring, one only needs to pull out the tape 2 to cooperate with the hook 3 to perform normal measurement. However, after the measurement is completed, since the tape 2 is shaped and then wound inside the shell 1, the tape 2 can automatically retract and reset by utilizing its own elasticity and rigidity after being pulled out (that is, the tape also acts as a coil spring reset here), ensuring the normal recovery of the tape measure and abandoning the coil spring structure of the traditional tape measure, thereby simplifying the structure of the tape measure.

[0027] Furthermore, the tape 2 is made of high-quality metal material to ensure its excellent durability and strength. This material selection makes the tape less likely to deform or be damaged during long-term use, thereby ensuring the accuracy of the measurement.

[0028] Reference Attachment Figure 2 As shown, considering the convenience of installing the tape 2 inside the housing 1, a winding shaft 4 is provided inside the housing 1, and the tape 2 is firmly wound on the winding shaft 4. The design of the winding shaft 4 not only makes the pulling out and rewinding of the tape 2 smoother, but also ensures that the tape 2 is neatly arranged inside the housing 1.

[0029] As for the housing 1, as a further supplementary optimization, its appearance adopts a hollow ring structure, and the middle part is a hollow circle. This design is not only beautiful and generous, but also further reduces the overall weight, making it easier for users to hold, operate and carry;

[0030] Reference Attachment Figure 3 As shown, correspondingly, the winding shaft 4 is designed in the shape of an I-wheel and is mounted on the inner ring of the shell 1. It is rotatably connected to the inner ring of the shell 1 through a bearing. This connection method ensures that the winding shaft 4 can rotate smoothly and flexibly, thereby ensuring the pulling out and rewinding experience of the tape 2.

[0031] In addition, refer to the attached Figure 2 As shown, the housing 1 is composed of two half-shells 11, which are integrally assembled by means of an insert 12 provided on the inner side. The insert 12 is cleverly and practically designed, so that one half-shell 11 can be firmly inserted into the other half-shell 11, and the two half-shells 11 are tightly combined together by means of an interference fit. This assembly method not only simplifies the manufacturing and assembly process of the housing 1, but also improves the subsequent disassembly and assembly of the housing 1.

[0032] Correspondingly, the winding shaft 4 can be separated from any half shell 11. This design allows the user to operate more conveniently when the winding shaft 4 needs to be replaced or maintained.

[0033] Example 2: Please refer to Figure 4-Figure 5 Except for the following features, the rest of the features of this embodiment are the same as those of Example 1: the shell 1 adopts a hollow ring structure, and the middle part can be a hollow heart or five-pointed star. However, considering the convenience of installing the winding shaft 4, the inner ring inside the shell 1 is still circular, so that the winding shaft 4 can still be directly installed. This can reduce the overall weight while improving the aesthetics of the tape measure. However, the disadvantage is that the grip comfort is not as high as that of Example 1.

[0034] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A springless tape measure, comprising a housing (1) provided with an opening, characterized in that: Also included are: The ruler tape (2) is naturally wound in the housing (1) in an initial state, and the outer end of the ruler tape passes through the opening of the housing (1) and is located outside the housing (1), and a hook (3) is fixed to the end located outside the housing (1).

2. The springless tape measure according to claim 1, wherein: The ruler tape (2) is made of metal material.

3. The springless tape measure according to claim 1, wherein: A winding shaft (4) is rotatably provided in the housing (1), and the ruler tape (2) is fixedly wound on the winding shaft (4).

4. The springless tape measure according to claim 3, wherein: The shell (1) has a hollow annular structure. The winding shaft (4) is an I-shaped wheel and is sleeved on the inner ring of the shell (1) and is rotatably connected to the inner ring of the shell (1) via a bearing.

5. The springless tape measure according to claim 4, characterized in that: The housing (1) is composed of two half shells (11), and an insert (12) is provided on the inner side of each of the two half shells (11) for inserting into the other half shell (11) respectively, so as to assemble the two half shells (11) into one piece by means of interference fit; Furthermore, the winding shaft (4) and any half shell (11) are detachable.

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