A portable steel tape measure

Abstract

This utility model discloses a portable steel measuring tape, comprising an outer shell, symmetrical rubber flexible edges fixedly connected to the sides of the outer shell, a pressing hole at one end of the outer shell, symmetrical guide rails fixedly connected inside the outer shell, a first segment rack movably connected inside the outer shell, a second segment rack movably connected inside the outer shell, a third segment rack movably connected inside the outer shell, symmetrical friction pads fixedly connected inside the outer shell, symmetrical sliding shafts fixedly connected to the sides of the first segment rack, symmetrical first graduations on the first segment rack, symmetrical second graduations on the second segment rack, and symmetrical third graduations on the third segment rack, and a foam pad fixedly connected inside the outer shell. This structure reduces the overall size and weight, improves portability, meets different measurement length requirements, ensures measurement accuracy, and extends the service life of the measuring tape.

Description

Technical Field

[0001] This utility model relates to the field of steel tape measure technology, and in particular to a portable steel tape measure. Background Technology

[0002] In daily work and life, steel measuring tapes are commonly used measuring tools, and their portability directly affects the user experience. Traditional steel measuring tapes often have a rigid casing, making them bulky and heavy. When placed in a pocket or tool bag, they easily take up space and cause inconvenience. Moreover, their sharp edges can easily scratch other items, making it difficult to meet people's needs for convenient measuring tools.

[0003] While existing portable steel tape measures have been improved, some products still have structural design flaws, such as poor stability of the winding device, which easily leads to caliper jamming; inconvenient opening and closing of the outer shell, making it cumbersome to use; and insufficient strength of some folding designs, which are easily damaged after repeated use, failing to balance portability and durability. Utility Model Content

[0004] The purpose of this utility model is to solve at least one of the technical problems existing in the prior art, and to provide a portable steel tape measure that reduces the overall size and weight, improves portability, meets different measurement length requirements, ensures measurement accuracy, and extends the service life of the tape measure.

[0005] This utility model also provides a portable steel tape measure, including a housing, symmetrical rubber soft edges fixedly connected to the side of the housing, a pressing hole at one end of the housing, symmetrical guide rails fixedly connected inside the housing, a first segment rack movably connected inside the housing, a second segment rack movably connected inside the housing, a third segment rack movably connected inside the housing, and symmetrical friction pads fixedly connected inside the housing.

[0006] According to the present invention, a portable steel tape measure is provided, wherein a symmetrical sliding shaft is fixedly connected to the side of the first segment rack, and the sliding shaft is correspondingly movably connected to the guide rail.

[0007] According to the present invention, a portable steel tape measure is provided with a first embedding groove at one end of the first segment rack, and a symmetrical first rotating seat is fixedly connected to the side of the first embedding groove. A first connecting bushing is fixedly connected to one end of the second segment rack, and a first connecting rod is movably connected through the first rotating seat and the first connecting bushing. The first connecting bushing is movably connected to the first embedding groove.

[0008] According to the present invention, a portable steel measuring tape is provided, wherein a first support pad is fixedly connected to the lower end of the second segment rack, the first support pad is movably connected to the first segment rack, and symmetrical first friction strips are fixedly connected to the side of the second segment rack, the first friction strips being movably connected to the friction pad.

[0009] According to the present invention, a portable steel measuring tape is provided, wherein a second embedded groove is provided at one end of the second segment rack, and a symmetrical second rotating seat is fixedly connected to the side of the second embedded groove; a second connecting bushing is fixedly connected to one end of the third segment rack, and a second connecting rod is movably connected through the second connecting bushing and the second rotating seat.

[0010] According to the present invention, a portable steel measuring tape is provided, wherein a second support pad is fixedly connected to the lower end of the third segment rack, the second support pad is movably connected to the second segment rack, and symmetrical second friction strips are fixedly connected to the side of the third segment rack, the second friction strips being movably connected to the friction pad.

[0011] According to the present invention, a portable steel measuring tape has symmetrical first graduations on the first segment of the rack, symmetrical second graduations on the second segment of the rack, and symmetrical third graduations on the third segment of the rack.

[0012] According to the present invention, a portable steel tape measure is provided, wherein a foam pad is fixedly connected inside the outer shell, and the foam pad is movably connected to the side of the third segment rack.

[0013] Beneficial effects:

[0014] 1. The portable steel tape measure of this technical solution uses a three-section rack structure. The first, second and third sections of the rack replace the single long strip of the traditional tape measure. The tape measures can be extended and retracted in sections, shortening the length after storage. Combined with the soft rubber edge on the side of the shell, the overall volume and weight are reduced, improving portability and making it convenient for users to carry and use.

[0015] 2. The sliding shaft on the side of the rack cooperates with the guide rail to ensure smooth extension and retraction; the friction strip and friction plate provide resistance, ensuring stable positioning of the rack after it is extended; the support pad prevents direct wear between the racks, and the foam pad provides cushioning protection. Each section of the rack has independent graduations to meet different measurement length requirements, ensuring measurement accuracy and extending the service life of the measuring tape. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0017] Figure 1 This is a structural diagram of a portable steel tape measure according to the present invention.

[0018] Figure 2 This is an exploded view of a portable steel tape measure according to the present invention.

[0019] Figure 3 The present utility model proposes Figure 2 Enlarged view of point A in the middle;

[0020] Figure 4 The present utility model proposes Figure 2 Enlarged view of point B in the middle;

[0021] Figure 5 This is a cross-sectional view of the outer shell of a portable steel tape measure according to this utility model.

[0022] Legend:

[0023] 1. Outer shell; 2. Rubber soft edge; 3. Guide rail; 4. First segment rack; 5. Second segment rack; 6. Third segment rack; 7. First scale; 8. Second scale; 9. Third scale; 10. First friction strip; 11. Second friction strip; 12. First support pad; 13. Second support pad; 14. First embedding groove; 15. Second embedding groove; 16. Sliding shaft; 17. Friction plate; 18. Foam pad; 19. Pressing hole; 20. First connecting bushing; 21. First rotating seat; 22. First connecting rod; 23. Second connecting bushing; 24. Second rotating seat; 25. Second connecting rod. Detailed Implementation

[0024] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0025] Reference Figure 1-5 This utility model provides a portable steel tape measure, which includes a housing 1. Symmetrical rubber soft edges 2 are fixedly connected to the side of the housing 1. A pressing hole 19 is provided at one end of the housing 1. Symmetrical guide rails 3 are fixedly connected inside the housing 1. A first-section rack 4, a second-section rack 5, and a third-section rack 6 are movably connected inside the housing 1. Symmetrical friction plates 17 are fixedly connected inside the housing 1 to provide extension and retraction damping.

[0026] Specifically, the side of the first segment rack 4 is fixedly connected with symmetrical sliding shafts 16, which are correspondingly movably connected to the guide rail 3 to prevent shaking or jamming.

[0027] Specifically, a first embedding groove 14 is provided at one end of the first segment rack 4, and a symmetrical first rotating seat 21 is fixedly connected to the side of the first embedding groove 14. A first connecting bushing 20 is fixedly connected to one end of the second segment rack 5. A first connecting rod 22 is movably connected through the first rotating seat 21 and the first connecting bushing 20. The first connecting bushing 20 is movably connected to the first embedding groove 14 to realize the segmented storage function.

[0028] Specifically, the lower end of the second segment rack 5 is fixedly connected to a first support pad 12, which is movably connected to the first segment rack 4. The side of the second segment rack 5 is fixedly connected to a symmetrical first friction strip 10, which is movably connected to a friction plate 17 to generate damping force and keep the rack in a fixed position.

[0029] Specifically, a second embedding groove 15 is provided at one end of the second segment rack 5, and a symmetrical second rotating seat 24 is fixedly connected to the side of the second embedding groove 15. A second connecting bushing 23 is fixedly connected to one end of the third segment rack 6, and a second connecting rod 25 is movably connected through the second connecting bushing 23 and the second rotating seat 24, thereby compressing the storage volume and improving portability.

[0030] Specifically, the lower end of the third segment rack 6 is fixedly connected to a second support pad 13, which is movably connected to the second segment rack 5. The side of the third segment rack 6 is fixedly connected to a symmetrical second friction strip 11, which is movably connected to a friction plate 17 to generate damping force and keep the rack in a fixed position.

[0031] Specifically, the first segment rack 4 has a symmetrical first scale 7, the second segment rack 5 has a symmetrical second scale 8, and the third segment rack 6 has a symmetrical third scale 9, to ensure that the data is continuous and accurate when measuring in segments.

[0032] Specifically, a foam pad 18 is fixedly connected inside the outer shell 1. The foam pad 18 is movably connected to the side of the third segment rack 6 to reduce the rigid collision between the third segment rack 6 and the outer shell 1, fill the internal gap, and prevent the rack from shaking and making abnormal noises during carrying.

[0033] Working principle:

[0034] By pressing the pressing hole 19, the unlocking mechanism is triggered, releasing the damping restriction of the friction plate 17 on the rack. The sliding shafts 16 on both sides of the first segment rack 4 slide smoothly out along the guide rail 3. After the first segment rack 4 is pulled out, the first rotating seat 21 at its end and the first connecting bushing 20 of the second segment rack 5 are hinged and unfolded through the first connecting rod 22 to form a continuous measuring structure. The first friction strip 10 on the side of the second segment rack 5 contacts the friction plate 17, generating a damping force to fix the position and prevent retraction. When the rack is stretched further, the second segment rack 5 drives the third segment rack 6 to unfold through the second rotating seat 24, the second connecting bushing 23 and the second connecting rod 25. The second friction strip 11 of the third segment rack 6 also cooperates with the friction plate 17 to achieve positioning. The first scale 7, the second scale 8 and the third scale 9 continuously display data. When storing, the rack is pushed in the opposite direction, and each segment folds in sequence. The third segment rack 6 is first stored in the second segment rack 5, and then together with the second segment rack 5, it is stored in the first segment rack 4, and finally the whole is stored in the outer shell 1. The foam pad 18 cushions the third-section toothed rack 6 during storage, preventing rigid collisions, reducing shaking and noise, and achieving the functions of convenient carrying and accurate measurement.

[0035] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A portable steel measuring tape, comprising a casing (1), characterized in that: The outer shell (1) has symmetrical rubber soft edges (2) fixedly connected to its side. One end of the outer shell (1) has a pressing hole (19). The outer shell (1) has symmetrical guide rails (3) fixedly connected inside. The outer shell (1) has a first segment rack (4) movably connected inside. The outer shell (1) has a second segment rack (5) movably connected inside. The outer shell (1) has a third segment rack (6) movably connected inside. The outer shell (1) has symmetrical friction plates (17) fixedly connected inside.

2. A pocket steel tape according to claim 1, wherein The first segment rack (4) has a symmetrical sliding shaft (16) fixedly connected to its side, and the sliding shaft (16) is correspondingly movably connected to the guide rail (3).

3. The compact steel tape measure of claim 1, wherein, The first segment rack (4) has a first embedding groove (14) at one end, and a symmetrical first rotating seat (21) is fixedly connected to the side of the first embedding groove (14). The second segment rack (5) has a first connecting bushing (20) fixedly connected to one end. A first connecting rod (22) is movably connected through the first rotating seat (21) and the first connecting bushing (20). The first connecting bushing (20) is movably connected to the first embedding groove (14).

4. A pocket steel tape according to claim 3, wherein The lower end of the second segment rack (5) is fixedly connected to a first support pad (12), the first support pad (12) is movably connected to the first segment rack (4), and the side of the second segment rack (5) is fixedly connected to a symmetrical first friction strip (10), the first friction strip (10) is movably connected to the friction plate (17).

5. The compact steel tape measure of claim 1, wherein, The second segment rack (5) has a second embedding groove (15) at one end, and a symmetrical second rotating seat (24) is fixedly connected to the side of the second embedding groove (15). The third segment rack (6) has a second connecting bushing (23) fixedly connected to one end, and a second connecting rod (25) is movably connected through the second connecting bushing (23) and the second rotating seat (24).

6. The compact steel tape measure of claim 1, wherein, The lower end of the third segment rack (6) is fixedly connected to a second support pad (13), which is movably connected to the second segment rack (5). The side of the third segment rack (6) is fixedly connected to a symmetrical second friction strip (11), which is movably connected to the friction plate (17).

7. The compact steel tape measure of claim 1, wherein, The first segment rack (4) has a symmetrical first scale (7), the second segment rack (5) has a symmetrical second scale (8), and the third segment rack (6) has a symmetrical third scale (9).

8. The compact steel tape measure of claim 1, wherein, A foam pad (18) is fixedly connected inside the outer shell (1), and the foam pad (18) is movably connected to the side of the third segment rack (6).

Images