Measuring scale

Abstract

The measuring ruler comprises a ruler body, an extension ruler and a clamping piece, a rectangular sliding groove is formed in one side of the ruler body in the length direction, a strip-shaped sliding hole is formed in the top of the ruler body in the length direction, a limiting groove is formed in the side wall, close to the notch end, of the rectangular sliding groove, the extension ruler is arranged in the rectangular sliding groove in a sliding mode, and the clamping piece is arranged on the extension ruler. The side, close to the inner side wall of the rectangular sliding groove, of the extension ruler is provided with a tooth-shaped protrusion, the clamping piece is arranged in the limiting groove, and the clamping piece is used for fixing the position of the extension ruler in the rectangular sliding groove. The measuring scale is simple to operate and reasonable in structure, and not only ensures convenience, but also improves working efficiency.

Description

Technical Field

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

[0002] In water conservancy projects, the measurement and recording of construction sites require the presence of rulers. Especially when manually drawing drawings, a measuring ruler with high hardness and straightness is generally required to assist engineers in completing the drawing.

[0003] For example, a water conservancy engineering measuring ruler with a Chinese utility model patent publication number of CN219798474U is provided with a long hollow adjustment box, in which a master and slave bevel gears, a rotating shaft, a screw rod, a positioning plate, a slide plate and a guide rod are arranged, and two measuring ruler bodies that are close to each other and slidable are arranged in parallel on the top of the adjustment box. The rotating shaft is rotated, and the rotating shaft drives the master bevel gear to mesh and drive the two slave bevel gears to rotate. The two slave bevel gears respectively drive the two screw rods to rotate. The screw rod is connected to the screw rod of the slide plate, and the slide plate is slidably connected to the guide rod to limit the position, so that the slide plates are close to or away from each other. The slide plate is connected to the measuring ruler body through a connecting rod, so as to drive the two measuring rulers to move away or close to each other, thereby ensuring portability while expanding the measuring range;

[0004] However, in actual operation, the above-mentioned water conservancy project measuring ruler uses a knob to drive the rotating shaft to rotate to complete subsequent operations. Since the screw rod is threadedly connected to the slide plate, this connection method results in low transmission efficiency. When using it, the surveyor needs to frequently turn the knob to extend or shorten the measuring ruler body, which increases the labor intensity and operation time to a certain extent, resulting in low operation efficiency. Utility Model Content

[0005] The purpose of the utility model is to overcome the above technical deficiencies, provide a measuring ruler, and solve the technical problem of low operating efficiency in the prior art.

[0006] In order to achieve the above technical purpose, the utility model adopts the following technical solutions:

[0007] The utility model provides a measuring ruler, comprising a ruler body, an extension ruler and a retaining piece, wherein a rectangular slide groove is provided on one side of the ruler body along the length direction, a strip-shaped slide hole is provided on the top of the ruler body along the length direction, a limiting groove is provided on the side wall of the rectangular slide groove close to the groove end, the extension ruler is slidably arranged in the rectangular slide groove, a toothed protrusion is provided on one side of the extension ruler close to the inner side wall of the rectangular slide groove, the retaining piece is arranged in the limiting groove, and the retaining piece is used to fix the position of the extension ruler in the rectangular slide groove.

[0008] In some embodiments, length scale lines are provided on one side of the top of the ruler body and one side of the top of the extension ruler.

[0009] In some embodiments, a sliding block is fixedly connected to the top of one end of the extension ruler located in the rectangular slide groove, and the sliding block is slidably connected to the inner wall of the strip-shaped slide hole.

[0010] In some embodiments, a fixed measuring rod is fixedly connected to the end side of the ruler body away from the locking member, and a dynamic measuring rod is fixedly connected to the top of the sliding block, and the fixed measuring rod corresponds to the dynamic measuring rod.

[0011] In some embodiments, a diameter scale line is provided on the other side of the top of the ruler.

[0012] In some embodiments, the locking member includes a sliding rod, a locking block, a limiting plate and a spring. Two circular sliding holes are provided on the side wall of the limiting groove away from the extension ruler. The two sliding rods are respectively slidably arranged in the two circular sliding holes. One side of the locking block is fixedly connected to one end of the two sliding rods located in the limiting groove, and the limiting plate is fixedly connected to the other end of the two sliding rods. A toothed groove is provided on the side of the locking block close to the toothed protrusion, and the toothed groove is meshed with the toothed protrusion.

[0013] In some embodiments, the two springs are separately arranged outside the two sliding rods, and the two ends of the spring are respectively fixedly connected to the inner wall of the limiting groove and one side of the block.

[0014] In some embodiments, one side of the ruler body is slidably connected to a limiting block, and one side of the ruler body is slidably connected to the limiting block. The limiting block is located below the limiting piece, and a sliding groove is provided at the bottom of the limiting piece. The sliding groove is inclined, and the limiting block has an inclined surface, which is adapted to the limiting groove.

[0015] In some embodiments, a strip-shaped through hole is opened in the middle of the extension ruler, and a horizontal column is arranged in the strip-shaped through hole.

[0016] In some embodiments, a pull ring is provided on one side of the ruler body.

[0017] Compared with the prior art, the utility model provides a measuring ruler, which achieves the purpose of improving working efficiency by providing a ruler body, an extension ruler and a locking piece. During specific operation, the side of the ruler body with a rectangular slide groove is turned downward. If extension is required, the extension ruler is directly pulled, and the extension ruler slides in the rectangular slide groove. At the same time, the toothed protrusion of the extension ruler is matched with the locking piece in the limiting groove. After the extension ruler is pulled to an appropriate length, the locking piece locks the extension ruler to fix the position of the extension ruler. If shortening is required, the locking piece is pulled to separate from the toothed protrusion of the extension ruler, and then the extension ruler is pushed into the ruler body to complete the shortening. The measuring ruler is simple to operate and has a reasonable structure, which not only ensures convenience but also improves working efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of a measuring ruler provided by an embodiment of the utility model. Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the structure of a measuring ruler provided by an embodiment of the utility model. Figure 2 ;

[0020] Figure 3 yes Figure 2 A magnified schematic diagram of part A in FIG.

[0021] Figure 4 It is a partial cross-sectional structural schematic diagram of a measuring ruler provided by an embodiment of the utility model;

[0022] Figure 5 yes Figure 4 Enlarged schematic diagram of part B in the middle.

[0023] Explanation of reference numerals: 100, ruler body; 110, rectangular slide groove; 120, strip slide hole; 130, limit groove; 131, circular slide hole; 140, length scale; 150, fixed measuring rod; 160, diameter scale; 200, extension ruler; 210, toothed protrusion; 220, slider; 230, dynamic measuring rod; 300, locking member; 310, slide rod; 320, block; 321, toothed groove; 330, limit plate; 331, inclined groove; 340, spring; 350, limit block; 351, inclined surface; 400, strip through hole; 410, horizontal column; 500, pull ring. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0025] In order to solve the technical problem of low operating efficiency, the utility model provides a measuring ruler which can achieve higher operating efficiency.

[0026] It should be noted that the measuring ruler described in the utility model is used for but not limited to water conservancy project measurement, etc. For the convenience of explanation, in the utility model, only a measuring ruler applied to water conservancy project measurement is used as an example for explanation, and the principle of a measuring ruler applied to other types of equipment is essentially the same as the principle applied to water conservancy project measurement, which will not be repeated here.

[0027] See also Figure 1 - Figure 5 ,in Figure 1 This is a schematic diagram of the structure of a measuring ruler in one embodiment of the utility model;

[0028] A measuring ruler comprises a ruler body 100, an extension ruler 200 and a stopper 300. A rectangular slide groove 110 is provided on one side of the ruler body 100 along the length direction. A strip-shaped slide hole 120 is provided on the top of the ruler body 100 along the length direction. A limiting groove 130 is provided on the side wall of the rectangular slide groove 110 near the slot end. The extension ruler 200 is slidably arranged in the rectangular slide groove 110. A tooth-shaped protrusion 210 is provided on one side of the extension ruler 200 close to the inner side wall of the rectangular slide groove 110. The stopper 300 is arranged in the limiting groove 130. The stopper 300 is used to fix the position of the extension ruler 200 in the rectangular slide groove 110.

[0029] In this embodiment, the side of the ruler body 100 with the rectangular slot 110 is turned downward. If extension is required, the extension ruler 200 is directly pulled, and the extension ruler 200 slides in the rectangular slot 110. At the same time, the toothed protrusion 210 of the extension ruler 200 is adapted to the clamping piece 300. After the extension ruler 200 is pulled to an appropriate length, the clamping piece 300 clamps the extension ruler 200 to fix the position of the extension ruler 200. If shortening is required, the clamping piece 300 is pulled to separate from the toothed protrusion 210 of the extension ruler 200, and then the extension ruler 200 is pushed into the ruler body 100 to complete the shortening. The measuring ruler is simple to operate and has a reasonable structure, which not only ensures convenience but also improves work efficiency.

[0030] In one embodiment, see Figure 1 - Figure 2 , length scale lines 140 are provided on one side of the top of the ruler body 100 and one side of the top of the extension ruler 200;

[0031] In this embodiment, the scale lines on the ruler body 100 and the scale lines on the extension ruler 200 are continuous.

[0032] In one embodiment, see Figure 1 - Figure 2 The extension ruler 200 is located in the rectangular slide groove 110 and the top end thereof is fixedly connected with a slider 220, and the slider 220 is slidably connected with the inner wall of the strip slide hole 120;

[0033] In this embodiment, the slider 220 moves together with the extension ruler 200 , which can further limit the movement direction of the extension ruler 200 .

[0034] In one embodiment, see Figure 1 , Figure 2 and Figure 4 The end of the ruler body 100 away from the positioning member 300 is fixedly connected with a fixed measuring rod 150, and the top of the slider 220 is fixedly connected with a dynamic measuring rod 230, and the fixed measuring rod 150 corresponds to the dynamic measuring rod 230;

[0035] Among them, a diameter scale line 160 is provided on the other side of the top of the ruler body 100;

[0036] In this embodiment, the fixed measuring rod 150 cooperates with the dynamic measuring rod 230 to measure the diameter data of some tubular materials, thereby increasing the functionality of the device.

[0037] In one embodiment, see Figure 1 - Figure 5 The positioning member 300 includes a slide bar 310, a block 320, a limiting plate 330 and a spring 340. Two circular sliding holes 131 are provided on the side wall of the limiting groove 130 away from the extension ruler 200. The two slide bars 310 are slidably arranged in the two circular sliding holes 131 respectively. One side of the block 320 is fixedly connected to one end of the two slide bars 310 located in the limiting groove 130. The limiting plate 330 is fixedly connected to the other end of the two slide bars 310. A toothed groove 321 is provided on the side of the block 320 close to the toothed protrusion 210. The toothed groove 321 is meshed with the toothed protrusion 210.

[0038] The two springs 340 are disposed outside the two slide bars 310, and the two ends of the springs 340 are fixedly connected to the inner wall of the limiting groove 130 and one side of the block 320 respectively.

[0039] One side of the ruler body 100 is slidably connected to a limit block 350, the limit block 350 is located below the limit piece 330, the bottom of the limit piece 330 is provided with an inclined groove 331, the inclined groove 331 is inclined, the limit block 350 has an inclined surface 351, and the inclined surface 351 is adapted to the inclined groove 331;

[0040] In this embodiment, the toothed protrusion 210 of the extension ruler 200 has a certain inclination angle. This inclination angle makes the extension ruler 200 unable to be easily shortened after being extended. At this time, the limit block 350 can be pressed to move toward the inner side of the limit plate 330, and the limit block 350 moves along the inclined groove 331 and pushes the limit plate 330 to one side. The limit plate 330 moves to one side and drives the block 320 to disengage from the toothed protrusion 210 through the slide bar 310. At this time, the block 320 compresses the spring 340, and the block 320 compresses the spring 340. After the extension ruler 200 is separated from the toothed protrusion 210, the movement of the extension ruler 200 is not restricted and can be extended or contracted. Similarly, the limit block 350 is loosened, the spring 340 is released, and the clamping block 320 is pushed to reset. The clamping block 320 drives the limit plate 330 to reset through the slide bar 310, and the limit plate 330 squeezes the limit block 350 to reset. At this time, the toothed groove 321 of the clamping block 320 is engaged with the toothed protrusion 210, which limits the shortening of the extension ruler 200 and limits the elongation of the extension ruler 200 to a certain extent.

[0041] In one embodiment, see Figure 2 and Figure 4A strip-shaped through hole 400 is provided in the middle of the extension ruler 200, and a horizontal column 410 is provided in the strip-shaped through hole 400;

[0042] In this embodiment, the ruler 100 and the level column 410 can be used to measure the levelness.

[0043] A pull ring 500 is provided on one side of the ruler body 100 .

[0044] In order to better understand the present invention, the following Figures 1 to 5 The technical solution of the utility model is described in detail:

[0045] When in use, the side of the ruler body 100 with the rectangular slot 110 is operated downward for measurement. If extension is required, the extension ruler 200 is directly pulled, and the extension ruler 200 slides in the rectangular slot 110. At this time, the limit block 350 can be pressed to move toward the inside of the limit plate 330, and the limit block 350 moves along the inclined slot 331 and pushes the limit plate 330 to one side. The limit plate 330 moves to one side and drives the block 320 to disengage from the toothed protrusion 210 through the slide rod 310. At this time, the block 320 compresses the spring 340. After the block 320 disengages from the toothed protrusion 210, the extension ruler 200 is not restricted in movement and can be extended or retracted. Similarly, loosen the limit block 350, the spring 340 is released and pushes the block 320 to reset. The block 320 drives the limit plate 330 to reset through the slide bar 310, and the limit plate 330 squeezes the limit block 350 to reset. At this time, the toothed groove 321 of the block 320 is engaged with the toothed protrusion 210 to limit the shortening of the extension ruler 200, and the toothed protrusion 210 of the extension ruler 200 has a certain inclination angle. This inclination angle makes the extension ruler 200 not easily shortened after being extended, and limits the movement of the extension ruler 200 to a certain extent. The measuring ruler is simple to operate and has a reasonable structure, which not only ensures convenience but also improves work efficiency.

[0046] The specific implementation methods of the utility model described above do not constitute a limitation on the protection scope of the utility model. Any other corresponding changes and modifications made according to the technical concept of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A measuring ruler, characterized in that: include: A ruler body, wherein a rectangular slide groove is provided on one side of the ruler body along the length direction, a strip-shaped slide hole is provided on the top of the ruler body along the length direction, and a limiting groove is provided on the side wall of the rectangular slide groove near the notch end; An extension ruler, the extension ruler is slidably arranged in the rectangular slide groove, and a tooth-shaped protrusion is provided on a side of the extension ruler close to the inner side wall of the rectangular slide groove; as well as A retaining piece is arranged in the limiting groove, and the retaining piece is used to fix the position of the extension ruler in the rectangular sliding groove.

2. A measuring ruler according to claim 1, characterized in that: One side of the top of the ruler body and one side of the top of the extension ruler are both provided with length scale lines.

3. A measuring ruler according to claim 1, characterized in that: A sliding block is fixedly connected to the top of one end of the extension ruler located in the rectangular slide groove, and the sliding block is slidably connected to the inner wall of the strip-shaped slide hole.

4. A measuring ruler according to claim 3, characterized in that: A fixed measuring rod is fixedly connected to the end side of the ruler body away from the clamping piece, and a dynamic measuring rod is fixedly connected to the top of the sliding block, and the fixed measuring rod corresponds to the dynamic measuring rod.

5. A measuring ruler according to claim 4, characterized in that: A diameter scale line is arranged on the other side of the top of the ruler body.

6. A measuring ruler according to claim 1, characterized in that: The locking member includes a sliding rod, a locking block, a limiting plate and a spring. Two circular sliding holes are provided on the side wall of the limiting groove away from the extension ruler. The two sliding rods are slidably arranged in the two circular sliding holes respectively. One side of the locking block is fixedly connected to one end of the two sliding rods located in the limiting groove. The limiting plate is fixedly connected to the other end of the two sliding rods. A toothed groove is provided on the side of the locking block close to the toothed protrusion, and the toothed groove is meshed with the toothed protrusion.

7. A measuring ruler according to claim 6, characterized in that: The two springs are arranged outside the two sliding rods respectively, and the two ends of the springs are fixedly connected to the inner wall of the limiting groove and one side of the clamping block respectively.

8. A measuring ruler according to claim 6, characterized in that: One side of the ruler body is slidably connected to a limiting block, the limiting block is located below the limiting piece, a sliding groove is provided at the bottom of the limiting piece, the sliding groove is inclined, the limiting block has an inclined surface, and the inclined surface is adapted to the limiting groove.

9. A measuring ruler according to claim 1, characterized in that: A strip-shaped through hole is opened in the middle of the extension ruler, and a horizontal column is arranged in the strip-shaped through hole.

10. A measuring ruler according to claim 1, characterized in that: A pull ring is provided on one side of the ruler body.

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