tape measure
Patent Information
- Application Number
- CN202522280813.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-28
- Publication Date
- 2026-09-04
- Estimated Expiration
- 2035-10-28
AI Technical Summary
[0003]然而，尽管当前市面上的卷尺能够广泛适配各种常规开放空间的测量场景，但在精准测量两个物体之间的距离时，却暴露出了明显的短板，尤其在狭窄空间场景下对两个物体之间距离的测量效果较差
[0021]本实用新型提供了一种卷尺，在测量物体之间间距时，先将该卷尺放入物体之间，再将硬质延长件从尺壳的第二端伸出，并使硬质延长件与物体之间中的一者接触；随后，将尺带从尺壳的第二端伸出，直至尺带与物体之间中的另一者接触，此时物体之间的间距即为尺带相对尺壳伸出的长度、尺壳第一端至尺壳第二端的长度以及硬质延长件相对尺壳伸出长度的总和。在上述过程中，通过限位件能够约束硬质延长件从尺壳内伸出的长度，使得硬质延长件能与对应的物体稳定接触，彼此之间不会发生晃动，有助于提高间距测量的精准性。相比于尺带，硬质延长件的刚度较大，使得尺带活动时硬质延长件不会发生弯折，有助于进一步提高间距测量的精准性。此外，当硬质延长件缩回至尺壳内时，尺带还能够用于测量常规开放空间的尺寸，扩大了该卷尺的通用性。
Smart Images
Figure CN224719304U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of measuring tool technology, and in particular relates to a measuring tape. Background Technology
[0002] As a portable measuring tool, the tape measure has become one of the core tools for meeting various basic measurement needs due to its significant advantages such as lightweight structure, convenient storage, and low cost. Its core structure consists of a freely retractable tape and a casing. When in use, simply pull the tape out of the casing to directly read the scale value on the tape and quickly complete the measurement operation. The operation logic is simple and intuitive.
[0003] However, although the measuring tapes currently on the market can be widely adapted to various conventional open space measurement scenarios, they have obvious shortcomings when it comes to accurately measuring the distance between two objects, especially in narrow space scenarios where the measurement effect between two objects is poor. Utility Model Content
[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a measuring tape that can accurately and conveniently measure the distance between objects.
[0005] To achieve this objective, the present invention adopts the following technical solution:
[0006] A measuring tape is provided, comprising:
[0007] Ruler shell;
[0008] The measuring tape is movably installed inside the measuring casing and can extend or retract from the first end of the measuring casing;
[0009] A rigid extension piece is movably disposed inside the ruler housing and can extend or retract from the second end of the ruler housing;
[0010] A limiting element, installed on the ruler housing or rigid extension member, is used to limit the length of the rigid extension member extending out of the ruler housing.
[0011] Optionally, a limiting hole is provided on one of the ruler shell and the rigid extension member, and the limiting member is provided on the other of the ruler shell and the rigid extension member, and the limiting member can be inserted into the limiting hole.
[0012] Optionally, multiple limiting holes are provided, and the multiple limiting holes are arranged at intervals along the extension direction of the rigid extension member, so that the limiting member can be selected to be inserted into any one of the limiting holes.
[0013] Optionally, the rigid extension member includes a plurality of connected extension portions, wherein any two connected extension portions are slidably fitted along the extension direction of the rigid extension member, and the overlap length between any two connected extension portions is adjustable.
[0014] Optionally, the rigid extension has graduations.
[0015] Optionally, the direction in which the measuring tape extends from the first end of the measuring housing is opposite to the direction in which the rigid extension extends from the second end of the measuring housing.
[0016] Optionally, the ruler shell is provided with a groove, and the rigid extension is slidably disposed in the groove.
[0017] Optionally, the measuring tape also includes an operating component, which is disposed on the rigid extension and protrudes from the outer surface of the measuring tape housing. The operating component is slidably disposed on the slide groove to drive the rigid extension to slide within the slide groove.
[0018] Optionally, the measuring tape may also include a detection element, which is set in the tape housing and is used to detect the horizontality or verticality of the tape housing.
[0019] Optionally, the measuring tape may also include a fluorescent layer, which is provided on the tape and / or rigid extension.
[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0021] This invention provides a measuring tape. When measuring the distance between objects, the measuring tape is first placed between the objects. Then, a rigid extension is extended from the second end of the tape casing, making contact with one of the objects. Subsequently, the measuring tape is extended from the second end of the tape casing until it contacts the other object. At this point, the distance between the objects is the sum of the length of the measuring tape extending relative to the tape casing, the length from the first end to the second end of the tape casing, and the length of the rigid extension relative to the tape casing. During this process, a limiting member constrains the length of the rigid extension extending from the tape casing, ensuring stable contact between the rigid extension and the corresponding object without wobbling, thus improving the accuracy of the distance measurement. Compared to the measuring tape, the rigid extension has greater rigidity, preventing bending during tape movement and further enhancing the accuracy of the distance measurement. Furthermore, when the rigid extension is retracted into the tape casing, the measuring tape can also be used to measure the dimensions of conventional open spaces, expanding the versatility of the measuring tape. Attached Figure Description
[0022] Figure 1 A schematic diagram of the first structure of the measuring tape provided by this utility model, showing the tape strip and rigid extension extending from inside the casing (hidden portion of the casing).
[0023] Figure 2 A side view of the tape measure and rigid extension member retracted into the casing of the tape measure provided by this utility model;
[0024] Figure 3 A side view of the measuring tape with the tape strip and rigid extension protruding from the casing provided by this utility model;
[0025] Figure 4 A schematic diagram of the structure of the measuring tape provided by this utility model, in which the tape and rigid extension are retracted into the casing;
[0026] Figure 5 A second structural diagram showing the tape measure and rigid extension protruding from the casing of the measuring tape provided by this utility model.
[0027] in:
[0028] 1. Ruler housing; 11. Limiting hole; 12. Sliding groove;
[0029] 2. Measuring tape;
[0030] 3. Rigid extension components;
[0031] 4. Limiting components;
[0032] 5. Operating components;
[0033] 6. Install wheels. Detailed Implementation
[0034] It should be understood that in the description of this utility model, the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0035] It should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "set," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0036] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.
[0037] like Figures 1 to 5 As shown, this embodiment provides a measuring tape that can accurately and conveniently measure the distance between objects.
[0038] See Figure 1 , Figure 2 and Figure 3 The measuring tape includes a casing 1, a tape 2, a rigid extension member 3, and a limiting member 4. The tape 2 is movably disposed inside the casing 1 and can extend or retract from the first end of the casing 1. The rigid extension member 3 is movably disposed inside the casing 1 and can extend or retract from the second end of the casing 1. The limiting member 4 is disposed on the casing 1 or the rigid extension member 3 and is used to limit the length of the rigid extension member 3 extending from inside the casing 1.
[0039] The measuring tape provided in this embodiment, when measuring the distance between objects, first places the measuring tape between the objects, then extends the rigid extension 3 from the second end of the tape cover 1, making the rigid extension 3 contact one of the objects; subsequently, extends the tape 2 from the second end of the tape cover 1 until the tape 2 contacts the other object. At this point, the distance between the objects is the sum of the length of the tape 2 extending relative to the tape cover 1, the length from the first end to the second end of the tape cover 1, and the length of the rigid extension 3 extending relative to the tape cover 1. In the above process, the limiting member 4 can constrain the length of the rigid extension 3 extending from the tape cover 1, so that the rigid extension 3 can make stable contact with the corresponding object without wobbling, which helps to improve the accuracy of the distance measurement. Compared with the tape 2, the rigid extension 3 has greater rigidity, so that the rigid extension 3 will not bend when the tape 2 moves, which helps to further improve the accuracy of the distance measurement. In addition, when the rigid extension 3 is retracted into the casing 1, the measuring tape 2 can also be used to measure the dimensions of conventional open spaces, expanding the versatility of the measuring tape.
[0040] In some embodiments, when measuring the distance between objects, the rigid extension 3 can be extended from the second end of the measuring tape 1 before the measuring tape is placed between the objects, and the rigid extension 3 is brought into contact with one of the objects. This allows the user to obtain the length of the rigid extension 3 extending relative to the measuring tape 1 before the measuring tape is placed between the objects. Therefore, when calculating the distance between the objects, the user only needs to read the length of the measuring tape 2 extending relative to the measuring tape 1, significantly improving the convenience and accuracy of the measurement.
[0041] In this embodiment, see Figure 2 The extension direction of the ruler strip 2 extending from the first end of the ruler shell 1 is opposite to the extension direction of the rigid extension member 3 extending from the second end of the ruler shell 1. The cross-sectional shape of the ruler shell 1 is preferably set as rectangular, with the first end and the second end being the two opposite ends of the ruler shell 1 along its length or width direction.
[0042] Specifically, when the first end and the second end are the two ends of the ruler shell 1 facing each other along its length direction, the distance between the objects is the sum of the length of the ruler strip 2 extending relative to the ruler shell 1, the length of the ruler shell 1, and the length of the rigid extension member 3 extending relative to the ruler shell 1. When the first end and the second end are the two ends of the ruler shell 1 facing each other along its width direction, the distance between the objects is the sum of the length of the ruler strip 2 extending relative to the ruler shell 1, the width of the ruler shell 1, and the length of the rigid extension member 3 extending relative to the ruler shell 1.
[0043] For example, see Figure 3 The orientation of the first end is the left end of the ruler shell 1, and the second end is the right end of the ruler shell 1.
[0044] In other embodiments, the cross-sectional shape of the ruler shell 1 is set to be circular, and the first end and the second end are the two ends of the ruler shell 1 facing each other along the same radial direction.
[0045] Optionally, see Figure 1 , Figure 4 and Figure 5 A limiting hole 11 is provided on one of the ruler shell 1 and the rigid extension member 3, and a limiting member 4 is provided on the other of the ruler shell 1 and the rigid extension member 3. The limiting member 4 can be inserted into the limiting hole 11 to limit the length of the rigid extension member 3 extending out of the ruler shell 1.
[0046] Specifically, the limiting member 4 is provided with an arc-shaped limiting surface, which helps to reduce the friction between the limiting member 4 and the wall of the limiting hole 11 when the limiting member 4 is inserted into or removed from the limiting hole 11, thereby reducing the damage to the limiting member 4 and the wall of the limiting hole 11 and helping to extend the service life of the limiting member 4.
[0047] In this embodiment, see Figure 1 , Figure 4 and Figure 5 The limiting hole 11 is provided on the ruler shell 1, and the limiting member 4 is provided on the rigid extension member 3. During the movement of the rigid extension member 3 relative to the ruler shell 1, the limiting member 4 moves away from the limiting hole 11; when the rigid extension member 3 extends to the designed length relative to the ruler shell 1, the limiting member 4 moves to the limiting hole 11 and gets into the limiting hole 11; when the measurement is completed and the rigid extension member 3 needs to be retracted into the ruler shell 1, the limiting member 4 can be driven to disengage from the limiting hole 11 to release the limiting member 4 from the rigid extension member 3.
[0048] In other embodiments, the limiting member 4 is disposed on the ruler shell 1, and the limiting hole 11 is disposed on the rigid extension member 3.
[0049] In this embodiment, the limiting member 4 includes a limiting part and an elastic part. One end of the elastic part is connected to the rigid extension member 3 or the ruler shell 1, and the other end is connected to the limiting part. The limiting part can be engaged in the limiting hole 11. During the movement of the rigid extension member 3 relative to the ruler shell 1, the ruler shell 1 or the rigid extension member 3 squeezes the limiting part, and the elastic part is compressed. When the rigid extension member 3 extends to the designed length relative to the ruler shell 1, the limiting part can automatically engage in the limiting hole 11 under the elastic force of the elastic part. When the measurement is completed and the rigid extension member 3 needs to be retracted into the ruler shell 1, the limiting part is pressed to deform the elastic part.
[0050] For example, the limiting part is a sphere or a hemisphere, and the elastic part is a spring.
[0051] In other embodiments, the limiting member 4 is made of an elastic material and has its own elasticity. The limiting member 4 can be inserted into the limiting hole 11 under its own elastic force.
[0052] For example, the limiting member 4 is made of rubber.
[0053] In this embodiment, multiple limiting holes 11 are provided, and the multiple limiting holes 11 are arranged at intervals along the extension direction of the rigid extension member 3. The limiting member 4 can be selectively inserted into any of the limiting holes 11. When the limiting member 4 is inserted into different limiting holes 11, the length of the rigid extension member 3 extending from the ruler shell 1 is different, so that the length of the rigid extension member 3 extending from the ruler shell 1 can be flexibly adjusted, thus expanding the versatility of the rigid extension member 3.
[0054] For example, the maximum length that the rigid extension member 3 can extend from the housing 1 is L, and there are n limiting holes 11. When the distance between any two adjacent limiting holes 11 is equal, the adjustable extension length of the rigid extension member 3 is L / n each time. In other embodiments, the distance between any two adjacent limiting holes 11 may not be equal.
[0055] In other embodiments, see Figure 4 There is one limiting hole 11.
[0056] See Figure 1 and Figure 5 Taking the limiting hole 11 on the ruler shell 1 and the limiting member 4 on the rigid extension member 3 as an example, the limiting hole 11 is located at the second end of the ruler shell 1, and the limiting member 4 is preferably located at the end away from the object being measured, so that when the limiting member 4 limits the rigid extension member 3, the rigid extension member 3 can extend out of the ruler shell 1 to the maximum length.
[0057] Specifically, see Figure 1 and Figure 5 In the orientation of the ruler shell 1, the limiting hole 11 is set at the right end of the ruler shell 1, and the limiting member 4 is preferably set at the left end of the rigid extension member 3.
[0058] For example, when the limiting member 4 is inserted into the limiting hole 11, the rigid extension member 3 extends 100mm from the ruler housing 1. At this time, the distance between objects is the sum of the length of the ruler strip 2 extending relative to the ruler housing 1, the length from the first end to the second end of the ruler housing 1, and 100mm, so that the user does not need to read the length of the rigid extension member 3 extending from the ruler housing 1, further improving the convenience of distance measurement.
[0059] Optionally, the rigid extension member 3 includes multiple connected extension portions, with any two connected extension portions slidingly engaged along the extension direction of the rigid extension member 3, and the overlap length between any two connected extension portions is adjustable. This configuration allows for flexible adjustment of the length of the rigid extension member 3, further improving the convenience and flexibility of using the measuring tape.
[0060] Specifically, when the overlap length of two adjacent extensions increases, the total length of the rigid extension 3 decreases; when the overlap length of two adjacent extensions decreases, the total length of the rigid extension 3 increases.
[0061] Specifically, the extension furthest from the object to be measured among the multiple extensions is slidably connected to the shell.
[0062] In this embodiment, the rigid extension member 3 also includes a locking part, and a locking part is provided between two adjacent extension members. The locking part is used to lock the overlap length between the two extension members.
[0063] Specifically, the locking part locks the two extension parts by the same way that the limiting part 4 limits the rigid extension part 3, which will not be described again here.
[0064] In this embodiment, two adjacent extension sections are coaxially arranged. The extension section is an extension tube, with one extension tube slidably inserted into an adjacent extension tube. The overlap length between the two extension sections is the insertion length between the two extension tubes.
[0065] In other embodiments, adjacent extensions are staggered. The extensions are plate-like structures, with adjacent extensions arranged side by side, and the plate surfaces of adjacent extensions touching each other. The overlap length between the two extensions is the length of the two plate surfaces touching each other.
[0066] Optionally, the rigid extension 3 is provided with a scale, allowing the user to conveniently and intuitively obtain the length of the rigid extension 3 extending from the ruler housing 1. In narrow space scenarios, when measuring the distance between two objects, only the rigid extension 3 can be used, without the ruler strip 2; in this case, the distance between the objects is the sum of the length from the first end to the second end of the ruler housing 1 and the length of the rigid extension 3 extending relative to the ruler housing 1.
[0067] In this embodiment, the scale is set along the length of the rigid extension 3.
[0068] Optionally, see Figure 2 and Figure 3 The ruler shell 1 is provided with a sliding groove 12, and the rigid extension 3 is slidably disposed in the sliding groove 12 so that the rigid extension 3 can extend out from the ruler shell 1.
[0069] Specifically, see Figure 5 The groove 12 extends along the extension direction of the rigid extension member 3. Figure 5 Extending in the X direction, the groove 12 is opened towards the second end of the ruler shell 1. When the rigid extension 3 slides, the end of the rigid extension 3 near the second end of the ruler shell 1 can slide out from the groove 12.
[0070] Optionally, see Figure 1 The measuring tape also includes an operating component 5, which is disposed on the rigid extension member 3 and protrudes from the outer surface of the measuring tape housing 1. The operating component 5 is slidably disposed on the slide groove 12 to drive the rigid extension member 3 to slide within the slide groove 12. The user can push or pull the operating component 5 to extend or retract the rigid extension member 3 relative to the measuring tape housing 1, which improves the convenience and user experience of the user operation.
[0071] For example, the operating element 5 is a push button.
[0072] Optionally, the measuring tape also includes a detection element, which is set in the casing 1 to detect the horizontality or verticality of the casing 1, ensuring that the extended tape 2, the extended rigid extension 3 and the casing 1 are on the same straight line, further improving the accuracy of the distance measured by the measuring tape.
[0073] For example, a bubble level is used to test the levelness of the ruler 1.
[0074] Optionally, the measuring tape also includes a fluorescent layer, which is provided on the tape 2 and / or the rigid extension 3. In dimly lit testing scenarios, the tape 2 and the rigid extension 3 can emit bright and vivid fluorescence, making it easier for users to read the values. This not only improves the user experience but also helps to improve the accuracy of readings in dimly lit environments.
[0075] In some embodiments, the length of the rigid extension 3 extending from the ruler housing 1 is fixed. In this case, the user can obtain the length of the rigid extension 3 extending from the ruler housing 1 without taking a reading, and thus only the fluorescent layer needs to be set on the ruler strip 2, which helps to reduce the production cost of the measuring tape.
[0076] For example, the fluorescent layer is made of a mixture of quantum dots and UV-curable transparent ink. Quantum dots, as fluorescent materials, absorb ultraviolet light and emit visible light of specific wavelengths (such as red, green, and blue), achieving full-color fluorescence by adjusting the size and composition of the quantum dots. The UV-curable transparent ink serves as a substrate, forming a transparent coating after curing, which does not affect the user's ability to read the scale on the ruler 2 and the rigid extension 3.
[0077] Optionally, see Figure 1 The ruler housing 1 is equipped with a rotatable mounting wheel 6, and the ruler belt 2 is wound around the mounting wheel 6. When the user pulls the ruler belt 2 out of the ruler housing 1, the ruler belt 2 unwraps from the mounting wheel 6 and drives the mounting wheel 6 to rotate in the forward direction; when the mounting wheel 6 rotates in the reverse direction, the ruler belt 2 can wrap around the mounting wheel 6 and retract into the ruler housing 1.
[0078] Specifically, the connection method between the mounting wheel 6 and the ruler housing 1, as well as the automatic retraction of the ruler belt 2 into the ruler housing 1, are existing technologies in the field and will not be described in detail here.
[0079] In this embodiment, the first end of the ruler shell 1 is provided with an opening, and the ruler strip 2 extends out of or retracts into the ruler shell 1 through the opening.
[0080] The above description is only a specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Those skilled in the art should understand that any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model fall within the protection and disclosure scope of the present utility model.
Claims
1. A measuring tape, characterized in that, include: Ruler shell (1); The ruler strip (2) is movably disposed inside the ruler shell (1) and can extend or retract from the first end of the ruler shell (1); A rigid extension member (3) is movably disposed inside the ruler shell (1) and can extend or retract from the second end of the ruler shell (1); A limiting member (4) is disposed on the ruler shell (1) or the rigid extension member (3) to limit the length of the rigid extension member (3) extending out of the ruler shell (1).
2. The measuring tape according to claim 1, characterized in that, A limiting hole (11) is provided on one of the ruler shell (1) and the rigid extension member (3), and a limiting member (4) is provided on the other of the ruler shell (1) and the rigid extension member (3), and the limiting member (4) can be inserted into the limiting hole (11).
3. The measuring tape according to claim 2, characterized in that, The limiting holes (11) are provided in multiple ways, and the multiple limiting holes (11) are arranged at intervals along the extension direction of the rigid extension member (3). The limiting member (4) can be selected to be inserted into any of the limiting holes (11).
4. The measuring tape according to claim 1, characterized in that, The rigid extension member (3) includes a plurality of connected extension portions. Any two connected extension portions slide together along the extension direction of the rigid extension member (3), and the overlap length between any two connected extension portions is adjustable.
5. The measuring tape according to claim 1, characterized in that, The rigid extension member (3) is provided with a scale.
6. The measuring tape according to claim 1, characterized in that, The extension direction of the ruler strip (2) extending from the first end of the ruler shell (1) is opposite to the extension direction of the rigid extension member (3) extending from the second end of the ruler shell (1).
7. The measuring tape according to claim 1, characterized in that, The ruler shell (1) is provided with a sliding groove (12), and the rigid extension (3) is slidably disposed in the sliding groove (12).
8. The measuring tape according to claim 7, characterized in that, The measuring tape also includes an operating component (5), which is disposed on the rigid extension member (3) and protrudes from the outer surface of the measuring tape shell (1). The operating component (5) is slidably disposed on the slide groove (12) to drive the rigid extension member (3) to slide in the slide groove (12).
9. The measuring tape according to any one of claims 1-8, characterized in that, The measuring tape also includes a detection element, which is disposed on the measuring tape shell (1) and is used to detect the horizontality or verticality of the measuring tape shell (1).
10. The measuring tape according to any one of claims 1-8, characterized in that, The measuring tape also includes a fluorescent layer, which is provided on the tape (2) and / or the rigid extension (3).