Steel tape

Abstract

The utility model relates to the technical field of measuring tools, and discloses a steel tape which comprises a shell, a protective cover is arranged on the outer side of the shell, a hinge is fixedly connected to the top of the protective cover, the protective cover is rotationally connected with the shell through the hinge, a first U-shaped block is fixedly connected to the left side of the outer wall of the protective cover, and a second U-shaped block is fixedly connected to the right side of the outer wall of the protective cover. A first U-shaped block is fixedly connected to the bottom of the left side of the shell, a first rotating plate is rotationally connected to the inner side of the first U-shaped block, a threaded rod is rotationally connected to the inner side of the first rotating plate, a second U-shaped block is fixedly connected to the bottom of the left side of the shell, a second rotating plate is rotationally connected to the inner side of the second U-shaped block, and the outer side of the threaded rod is in threaded connection with the second rotating plate. According to the utility model, through the cooperation among the hinge, the shield and the housing, the orientation of the device can be adjusted to make the device fit the ground so as to improve the measurement accuracy, and through the cooperation among the knob, the rotating disc and the rotating rod, the steel coils can be tightened so as to install and fix the steel coils of different specifications.

Description

Technical Field

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

[0002] Measuring tools refer to devices or tools used to measure physical quantities or specific dimensions, which can be used in industries, construction, manufacturing, scientific research, and daily life. To facilitate the measurement of irregular or different-length workpieces, a steel tape measure is required.

[0003] A steel tape measure is a classic measuring tool, usually composed of a retractable steel band with scales, so as to measure linear dimensions and is used for measurement tasks that require a long measurement distance or certain rigidity and durability.

[0004] At present, most of the steel tape measures on the market are measured by pulling out the steel coil after being fixed. In actual use, the tape measure itself cannot be adjusted, resulting in poor fit with the ground. When the tape measure does not fit well with the ground, the measurement parameters will be inaccurate, thus reducing the practicality of the device. Content of the Utility Model

[0005] In order to make up for the above deficiencies, the utility model provides a steel tape measure, aiming to improve the problem that the measurement parameters are inaccurate due to the poor fit between the tape measure and the ground in the prior art.

[0006] To achieve the above object, the utility model adopts the following technical scheme: A steel tape measure, comprising a housing, a protective cover is arranged on the outer side of the housing, a hinge is fixedly connected to the top of the protective cover, the protective cover is rotationally connected to the housing through the hinge, a first U-shaped block is fixedly connected to the left side of the outer wall of the protective cover, a first rotating plate is rotationally connected to the inner side of the first U-shaped block, a threaded rod is rotationally connected to the inner side of the first rotating plate, a second U-shaped block is fixedly connected to the bottom left side of the housing, a second rotating plate is rotationally connected to the inner side of the second U-shaped block, the outer side of the threaded rod is threadedly connected to the second rotating plate, rotating blocks are rotationally connected to the front and rear sides of the outer wall of the protective cover, legs are slidably connected to the inner sides of the rotating blocks, and a tightening mechanism is arranged inside the housing, and the tightening mechanism is used to control the tightening and fixing of the steel coil.

[0007] As a further description of the above technical solution:

[0008] The tightening mechanism includes a cross plate which is rotatably connected to the front side of the inner wall of the housing. A rotating disk is rotatably connected to the rear side of the inner wall of the housing. Rotating rods are rotatably connected to the four circumferences of the inner wall of the rotating disk. A limiting plate is rotatably connected to the outer side of the rotating rod, and the outer side of the limiting plate is slidably connected to the cross plate. Knobs are rotatably connected to the front and rear sides of the outer wall of the housing. The rear side of the front knob penetrates through the housing and is fixedly connected to the cross plate, and the front side of the rear knob penetrates through the housing and is fixedly connected to the rotating disk.

[0009] As a further description of the above technical solution:

[0010] A plurality of sliding grooves are formed in the four circumferences of the inner wall of the cross plate, and the outer sides of the plurality of limiting plates are respectively slidably connected to the corresponding sliding grooves.

[0011] As a further description of the above technical solution:

[0012] A handle is fixedly connected to the top of the housing, and a sheath is fixedly connected to the outer side of the handle.

[0013] As a further description of the above technical solution:

[0014] A positioning block is fixedly connected to the right side of the housing, and a positioning hole is formed in the outer side of the positioning block.

[0015] As a further description of the above technical solution:

[0016] A handle is rotatably connected to the top of the first rotating plate, and the bottom of the handle penetrates through the first rotating plate and is fixedly connected to the threaded rod.

[0017] As a further description of the above technical solution:

[0018] A groove is formed in the bottom right side of the housing, and a protective plate is slidably connected to the inner side of the groove.

[0019] As a further description of the above technical solution:

[0020] Mounting plates are fixedly connected to the front and rear sides of the outer wall of the housing, and brackets are fixedly connected to the outer sides of the mounting plates.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the present utility model, the protective cover can be opened and closed through a hinge to facilitate the replacement and maintenance of the internal steel coil. By rotating the threaded rod, the first rotating plate and the second rotating plate can be fixed, and the distance between them can be adjusted by rotation. At the same time, through the fixation between the first rotating plate and the second rotating plate, the outer shell and the protective cover can be fixed. Meanwhile, by rotating the rotating block and its supporting legs, after the device is fixed by the supporting legs, the swinging of the outer shell can be controlled by rotating the threaded rod, so as to adjust the orientation of the device to fit the ground and improve the measurement accuracy, thereby improving the practicability of the device.

[0023] 2. In the present utility model, by rotating the rear knob, the rotating disk can be driven to rotate, so as to drive the rotating rod thereon to rotate, and then drive the limiting plate to move along the cross plate, thereby adjusting the tightening degree of the limiting plate on the steel coil wound outside it. At the same time, by rotating the front knob, the cross plate and the limiting plate thereon can be driven to rotate, so as to stretch the wound steel coil, and the steel coil can be tightened to install and fix steel coils of different specifications, thereby improving the convenience of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A three-dimensional view of a steel tape measure proposed by the present utility model;

[0025] Figure 2 A schematic diagram of the tightening mechanism of a steel tape measure proposed by the present utility model;

[0026] Figure 3 A schematic diagram of the outer shell structure of a steel tape measure proposed by the present utility model.

[0027] LEGEND DESCRIPTION:

[0028] 1. Outer shell; 2. Tightening mechanism; 201. Cross plate; 202. Rotating disk; 203. Rotating rod; 204. Limiting plate; 205. Knob; 3. Protective cover; 4. Hinge; 5. First U-shaped block; 6. First rotating plate; 7. Second U-shaped block; 8. Second rotating plate; 9. Threaded rod; 10. Rotating block; 11. Supporting leg; 12. Chute; 13. Handle; 14. Mounting plate; 15. Bracket; 16. Groove; 17. Protective plate; 18. Positioning block; 19. Positioning hole; 20. Grip; 21. Sheath. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0030] Referring to Figure 1 、 Figure 2 and Figure 3 , an embodiment provided by the present utility model: a steel tape measure, including a housing 1, a protective cover 3 is arranged on the outer side of the housing 1, a hinge 4 is fixedly connected to the top of the protective cover 3, the protective cover 3 is rotatably connected to the housing 1 through the hinge 4, a first U-shaped block 5 is fixedly connected to the left side of the outer wall of the protective cover 3, a first rotating plate 6 is rotatably connected to the inner side of the first U-shaped block 5, a threaded rod 9 is rotatably connected to the inner side of the first rotating plate 6, a second U-shaped block 7 is fixedly connected to the bottom left side of the housing 1, a second rotating plate 8 is rotatably connected to the inner side of the second U-shaped block 7, and the outer side of the threaded rod 9 is threadedly connected to the second rotating plate 8. Rotating blocks 10 are rotatably connected to the front and rear sides of the outer wall of the protective cover 3, legs 11 are slidably connected to the inner sides of the rotating blocks 10, and a tightening mechanism 2 is arranged inside the housing 1, and the tightening mechanism 2 is used to control the tightening and fixing of the steel coil;

[0031] Specifically, the protective cover 3 can be opened or closed through the hinge 4, which is convenient for replacing and maintaining the internal steel coil. By rotating the threaded rod9, the positions of the first rotating plate 6 and the second rotating plate 8 can be fixed, and the distance between them can be adjusted. This fixation can also stabilize the connection between the housing 1 and the protective cover 3. After rotating the rotating block 10 and the legs 11 thereon, the device is fixed through the legs 11, and then the swing of the housing 1 is controlled by rotating the threaded rod 9 to make the device fit the ground, thereby improving the measurement accuracy.

[0032] Referring to Figure 2 and Figure 3 , the tightening mechanism 2 includes a cross plate 201, the cross plate 201 is rotatably connected to the front side of the inner wall of the housing 1, a rotating disk 202 is rotatably connected to the rear side of the inner wall of the housing 1, rotating rods 203 are rotatably connected to the four circumferences of the inner wall of the rotating disk 202, a limiting plate 204 is rotatably connected to the outer side of the rotating rod 203, the outer side of the limiting plate 204 is slidably connected to the cross plate 201, and knobs 205 are rotatably connected to the front and rear sides of the outer wall of the housing 1. The rear side of the front knob 205 penetrates through the housing 1 and is fixedly connected to the cross plate 201, and the front side of the rear knob 205 penetrates through the housing 1 and is fixedly connected to the rotating disk 202;

[0033] Specifically, by rotating the rear knob 205, the rotating disk 202 can be rotated, driving the rotating rod 203 above, and then making the limiting plate 204 move along the cross plate 201 to adjust the tightening degree of the limiting plate 204 on the externally wound steel coil. At the same time, by rotating the front knob 205, the cross plate 201 and the limiting plate 204 thereon can be rotated to adjust the retraction and extension of the steel coil winding to adapt to and fix steel coils of different specifications.

[0034] Referring to Figure 2 and Figure 3, a plurality of chutes 12 are provided around the inner wall of the cross plate 201, and the outer sides of the plurality of limiting plates 204 are respectively slidably connected to the corresponding chutes 12; a handle 20 is fixedly connected to the top end of the outer shell 1, and a sheath 21 is fixedly connected to the outer side of the handle 20; a positioning block 18 is fixedly connected to the right side of the outer shell 1, and a positioning hole 19 is provided on the outer side of the positioning block 18;

[0035] Specifically, the chute 12 can improve the stability of the limiting plate 204 during movement. Through the handle 20 and the sheath 21 thereon, it is convenient to move and carry the device. By installing threaded parts in the positioning hole 19 on the positioning block 18, it is convenient to install or store the device.

[0036] Refer to Figure 1 and Figure 3 , a handle 13 is rotatably connected to the top of the first rotating plate 6, and the bottom of the handle 13 penetrates through the first rotating plate 6 and is fixedly connected to the threaded rod 9; a groove 16 is provided at the bottom right of the outer shell 1, and a guard plate 17 is slidably connected to the inner side of the groove 16; mounting plates 14 are fixedly connected to the front and rear sides of the outer wall of the outer shell 1, and brackets 15 are fixedly connected to the outer sides of the mounting plates 14;

[0037] Specifically, through the handle 13, it is convenient to rotate the threaded rod 9. Through the guard plate 17 slidably arranged on the inner side of the groove 16, it is convenient to prevent the steel coil from hurting the user's fingers when winding the steel coil. Through the mounting plate 14 and the bracket 15 thereon, the stability of the device after being fixed can be improved.

[0038] Working principle: Before using the device, first, the protective cover 3 can be opened or closed through the hinge 4 to facilitate the replacement and maintenance of the internal steel coil. Rotating the threaded rod 9 can fix the positions between the first rotating plate 6 and the second rotating plate 8 and adjust their distances. This fixation can also stabilize the connection between the outer shell 1 and the protective cover 3. By rotating the rotating block 10 and the leg 11, the device can be fixed, and by adjusting the threaded rod 9, the swing of the outer shell 1 can be controlled, so that it fits closely with the ground to improve the measurement accuracy.

[0039] Rotating the rear knob 205 can rotate the rotating disk 202, drive the rotating rod 203 above, and further move the limiting plate 204 along the cross plate 201. In this way, adjusting the position of the limiting plate 204 can control the tightening degree of the steel coil wound on the outside. At the same time, by rotating the front knob 205, the cross plate 201 and the limiting plate 204 thereon can be rotated to adjust the expansion and contraction of the wound steel coil.

[0040] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A steel tape measure, comprising a housing (1), characterized in that: A protective cover (3) is provided on the outer side of the housing (1). A hinge (4) is fixedly connected to the top of the protective cover (3). The protective cover (3) is rotatably connected to the housing (1) through the hinge (4). A first U-shaped block (5) is fixedly connected to the left side of the outer wall of the protective cover (3). A first rotating plate (6) is rotatably connected to the inner side of the first U-shaped block (5). A threaded rod (9) is rotatably connected to the inner side of the first rotating plate (6). A second U-shaped block (7) is fixedly connected to the bottom left side of the housing (1). A second rotating plate (8) is rotatably connected to the inner side of the second U-shaped block (7). The outer side of the threaded rod (9) is threadedly connected to the second rotating plate (8). Rotating blocks (10) are rotatably connected to the front and rear sides of the outer wall of the protective cover (3). Legs (11) are slidably connected to the inner sides of the rotating blocks (10). A tightening mechanism (2) is provided inside the housing (1), and the tightening mechanism (2) is used to control the tightening and fixing of the steel coil.

2. A steel tape measure according to claim 1, characterized in that: The tightening mechanism (2) includes a cross plate (201). The cross plate (201) is rotatably connected to the front side of the inner wall of the housing (1). A rotating disk (202) is rotatably connected to the rear side of the inner wall of the housing (1). Rotating rods (203) are rotatably connected to the four circumferences of the inner wall of the rotating disk (202). A limiting plate (204) is rotatably connected to the outer side of the rotating rod (203). The outer side of the limiting plate (204) is slidably connected to the cross plate (201). Knobs (205) are rotatably connected to the front and rear sides of the outer wall of the housing (1). The rear side of the front knob (205) penetrates through the housing (1) and is fixedly connected to the cross plate (201). The front side of the rear knob (205) penetrates through the housing (1) and is fixedly connected to the rotating disk (202).

3. A steel tape measure according to claim 2, characterized in that: A plurality of sliding grooves (12) are respectively formed in the four circumferences of the inner wall of the cross plate (201). The outer sides of the plurality of limiting plates (204) are respectively slidably connected to the corresponding sliding grooves (12).

4. A steel tape measure according to claim 1, characterized in that: A handle (20) is fixedly connected to the top of the housing (1). A sheath (21) is fixedly connected to the outer side of the handle (20).

5. A steel tape measure according to claim 1, characterized in that: A positioning block (18) is fixedly connected to the right side of the housing (1). A positioning hole (19) is formed in the outer side of the positioning block (18).

6. A steel tape measure according to claim 1, characterized in that: A handle (13) is rotatably connected to the top of the first rotating plate (6). The bottom of the handle (13) penetrates through the first rotating plate (6) and is fixedly connected to the threaded rod (9).

7. A steel tape measure according to claim 1, characterized in that: A groove (16) is formed in the bottom right side of the housing (1). A protective plate (17) is slidably connected to the inner side of the groove (16).

8. A steel tape measure according to claim 1, characterized in that: Mounting plates (14) are fixedly connected to the front and rear sides of the outer wall of the housing (1). Brackets (15) are fixedly connected to the outer sides of the mounting plates (14).

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