Measuring scale

Abstract

The utility model belongs to the technical field of measuring rulers, and particularly relates to a measuring ruler which comprises a measuring ruler body, an angle adjusting assembly is arranged in a through hole and comprises a worm wheel, a connecting rod is fixedly arranged at the center of the worm wheel in a penetrating mode, and the two ends of the connecting rod are fixedly connected with the centers of the inner walls of the two sides of the through hole. The connecting rods penetrate through the top ends of the first mounting plates and are rotationally connected with the first mounting plates, the two first mounting plates are oppositely arranged at the top ends of the bottom plates, a first extension ruler and a second extension ruler are slidably mounted on the two sides of the U-shaped groove correspondingly, one end of the first extension ruler is connected with a pulling plate, and a shell is fixedly arranged at the end, facing the pulling plate, of the second extension ruler. A limiting assembly is arranged in the shell, the limiting assembly is connected with a limiting plate, the limiting plate is fixedly arranged on one side of the end, away from the pulling plate, of the first extension ruler, and the problem that the measuring accuracy is affected due to the fact that the horizontal angle of an existing measuring ruler cannot be adjusted according to the terrain state of the site is solved.

Description

Technical Field

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

[0002] Before large-scale engineering construction begins, surveying engineers must measure and draw topographic maps and provide other information before decision-making, planning, and design can be carried out. During the construction process, various surveying and measurements are often required to ensure that the construction is carried out strictly in accordance with the plan. After the project is completed, the project needs to be surveyed to ensure the quality of the project. Therefore, engineering surveying runs through the entire construction process and plays a very important role. In the process of engineering surveying, various measuring tools are needed to measure the required data. Therefore, a measuring ruler based on surveying engineering is used. In civil engineering surveying or construction surveying, in order to ensure the flatness of the surveying work, a ruler is usually used to measure the length of the horizontal line.

[0003] The existing measuring ruler cannot adjust the horizontal angle of the measuring ruler according to the terrain conditions on site, thereby affecting the accuracy of measurement. Utility Model Content

[0004] In view of the above problems, the purpose of the present invention is to provide a measuring ruler to solve the problem that the existing measuring ruler cannot adjust the horizontal angle of the measuring ruler according to the terrain conditions on site, thereby affecting the accuracy of measurement.

[0005] To achieve the above objectives, the present invention adopts a technical solution: a measuring ruler, comprising a measuring ruler body, a through hole is formed through the center of the measuring ruler body, an angle adjustment assembly is provided in the through hole, the angle adjustment assembly comprises a worm gear, a connecting rod is fixedly formed through the center of the worm gear, both ends of the connecting rod are fixedly connected to the center of the inner walls on both sides of the through hole, the connecting rods both pass through the top of the mounting plate and are rotatably connected thereto, and the mounting plate is relatively provided with two groups of top ends of the bottom plate, the bottom plate is installed below the measuring ruler body, and a U-shaped screw thread is provided inside the measuring ruler body. shaped groove, and an extension ruler 1 and an extension ruler 2 are respectively slidably installed on both sides of the U-shaped groove, one end of the extension ruler 1 is connected to the pull plate, and the pull plate is arranged at one end of the measuring ruler body, and the extension ruler 2 is fixed with a shell at one end facing the pull plate, and the shell is slidably installed at one end of the U-shaped groove, a limit component is arranged in the shell, the limit component is connected to the limit plate, and the limit plate is fixed on the side of the end of the extension ruler 1 away from the pull plate, a connecting plate is provided on one side of one end of the measuring ruler body, and the connecting plate is engaged with the pull plate, a bolt is threadedly installed on one side of the pull plate, and the bolt is threadedly connected to the connecting plate.

[0006] The beneficial effects of the utility model are:

[0007] By providing an angle adjustment component, the present invention realizes arbitrary angle adjustment of the measuring ruler body on the horizontal plane, and the adjustment process is smooth and accurate. In conjunction with the level bubble meter, the user can intuitively observe the horizontal state of the measuring ruler body, thereby ensuring the accuracy of angle measurement.

[0008] By sliding extension ruler 1 and extension ruler 2, the needs of measuring different distances are met. The design of the limit assembly ensures the stability and accuracy of the extension ruler during the sliding process, avoiding measurement errors caused by sliding wear.

[0009] To ensure that the initial point is aligned with the positioning hole:

[0010] As a further improvement to the above technical solution: a positioning hole is provided through the center of one end of the measuring ruler body.

[0011] The beneficial effect of this improvement is that when using this device, the initial point of measurement corresponds to the positioning hole.

[0012] To limit the measuring ruler body to a specified position:

[0013] As a further improvement of the above technical solution: ground cones are installed at the four corners of the bottom end of the base plate.

[0014] The beneficial effect of this improvement is that after the initial point is positioned in the positioning hole, the second ground cone can be embedded in the soil, so that the measuring ruler body is limited to the specified position.

[0015] To adjust the horizontal position of the measuring tape body:

[0016] As a further improvement of the above technical solution: a level bubble gauge is installed on the top of the measuring ruler body.

[0017] The beneficial effect of this improvement is that the horizontal position of the measuring ruler body can be checked by setting the level bubble meter, so that the angle adjustment component can better adjust the horizontal position of the measuring ruler body.

[0018] To adjust the angle of the measuring tape body:

[0019] As a further improvement of the above technical solution: the angle adjustment assembly consists of a worm wheel and a worm, one side of the worm wheel is meshedly connected to the worm, and the bottom end of the worm is rotatably connected to the top end of the base plate.

[0020] The beneficial effect of this improvement is that the user can rotate the worm wheel by rotating the worm, and at this time the measuring ruler body will rotate with the connecting rod as the axis, and the adjustment status of the measuring ruler body can be observed by observing the level bubble meter.

[0021] To slide and store extension ruler 1 and extension ruler 2:

[0022] As a further improvement of the above technical solution: a slide groove 1 and a slide groove 2 are respectively opened on the inner walls of the two opposite sides of the U-shaped groove, and the slide groove 1 passes through one end of the measuring ruler body, the slide groove 1 is slidably connected to the extension ruler 1, and the slide groove 2 is slidably connected to the extension ruler 2.

[0023] The beneficial effect of this improvement is that when the pull plate is pulled outward, the extension ruler 1 can completely slide out of the U-shaped groove, and the extension ruler 2 is slidably limited in the U-shaped groove.

[0024] To connect extension ruler 1 and extension ruler 2:

[0025] As a further improvement of the above technical solution: the limit assembly consists of a second mounting plate, a first magnetic plate, a slide plate, a second magnetic plate, and a rod, the shell being provided with a telescopic cavity, and an inner wall of one side of the telescopic cavity is provided with a slot second through one side of the shell, a slot first is provided at the lower side of the shell, and an inner wall of one side of the slot first is provided with a sliding window through an inner wall of one end of the telescopic cavity, a slide plate is slidably arranged in the telescopic cavity, and a rod is fixedly provided with a spring at the center of one side of the slide plate facing the sliding window, and two ends of the spring first are connected to the inner wall of the telescopic cavity and the slide plate, a mounting plate second is fixed at the inner wall of one end of the U-shaped groove, and the mounting plate second penetrates the sliding connection slot second, a magnetic plate one is provided on the side of the mounting plate second facing the rod, and the magnetic plate one is magnetically connected to the magnetic plate two, and the magnetic plate two is arranged on the side of the slide opposite to the rod, the limit plate penetrates the limit card slot, the limit plate is engaged with the sliding connection slot one, and the rod is engaged with the limit card slot.

[0026] The beneficial effect of this improvement is that when the extension ruler slides outward to make the limit plate fit into the slot one, the outward pulling force can make the shell slide outward, at this time the mounting plate two is disconnected from the slot two and the magnetic plate one is disconnected from the magnetic plate two, at this time the elastic potential energy of the spring one will be expanded to make the insertion rod slide and fit into the limit card slot, thereby completing the connection between the extension ruler one and the shell, after connecting the shell, the pulling force can pull the extension ruler two outward, and the use of the extension ruler two begins, and the reverse operation is similar. When the use of this device is finished, the pulling plate is pushed in the direction of the measuring ruler main body, the extension ruler two first slides into the U-shaped groove, and the shell then enters the U-shaped groove, at this time the mounting plate two is inserted into the slot two, the magnetic plate one magnetically attracts the magnetic plate two, the insertion rod is disconnected from the limit card slot, and at this time the extension ruler one will be stored in the U-shaped groove without limit.

[0027] In order to limit the position of the tension plate:

[0028] As a further improvement of the above technical solution: a ground cone 1 is slidably installed through the center of the pull plate, and a spring 2 is sleeved on the outer side of the top end of the ground cone 1.

[0029] The beneficial effect of this improvement is that when the pull plate is pulled to the measuring point, the cone can be slid downward so that its bottom end is embedded in the soil at the measuring point, thereby completing the position limitation of the pull plate.

[0030] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the cross-sectional structure of the utility model;

[0032] Figure 2 This is a schematic diagram of the top structure of the utility model;

[0033] Figure 3 This is a schematic diagram of the cross-sectional structure of the through hole of the present utility model;

[0034] Figure 4 This is a structural diagram of an extension ruler of the present utility model;

[0035] Figure 5 This is a schematic diagram of the structure of the second extension ruler of the utility model;

[0036] Figure 6 This is a schematic diagram of the structure of slot one and slot two of the present utility model;

[0037] Figure 7 This is a schematic diagram of the enlarged structure of part A of the present utility model;

[0038] In the figure: 1. Measuring ruler body; 2. Positioning hole; 3. Extension ruler 1; 301. Limit plate; 302. Limit slot; 4. Extension ruler 2; 5. Pull plate; 6. Bolt; 7. Through hole; 8. Level bubble gauge; 9. Angle adjustment assembly; 901. Worm gear; 902. Worm; 10. Ground cone 1; 11. Bottom plate; 12. Ground cone 2; 13. Mounting plate 1; 14. Housing; 1401. Slot 1; 1402. Slot 2; 1403. Telescopic chamber; 15. Limit assembly; 1501. Mounting plate 2; 1502. Magnetic plate 1; 1503. Slide plate; 1504. Magnetic plate 2; 1505. Insert rod. DETAILED DESCRIPTION

[0039] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the scope of protection of the present invention.

[0040] like Figure 1-7As shown, a measuring ruler includes a measuring ruler body 1, a through hole 7 is opened at the center of the measuring ruler body 1, an angle adjustment component 9 is arranged in the through hole 7, and the angle adjustment component 9 includes a worm gear 901, a connecting rod is fixedly provided at the center of the worm gear 901, and the two ends of the connecting rod are fixedly connected to the centers of the inner walls on both sides of the through hole 7, and the connecting rods are all through the top of the mounting plate 13 and are rotatably connected thereto, and the mounting plate 13 is relatively provided with two groups at the top of the bottom plate 11, and the bottom plate 11 is arranged below the measuring ruler body 1, and a U-shaped groove is opened inside the measuring ruler body 1, and the two sides of the U-shaped groove are respectively slidable. An extension ruler 3 and an extension ruler 2 4 are movably mounted, one end of the extension ruler 3 is connected to the pull plate 5, and the pull plate 5 is arranged at one end of the measuring ruler body 1, and a shell 14 is fixed to the end of the extension ruler 2 4 facing the pull plate 5, and the shell 14 is slidably mounted on one end of the U-shaped groove, and a limit assembly 15 is arranged in the shell 14, and the limit assembly 15 is connected to the limit plate 301, and the limit plate 301 is fixed to the side of the end of the extension ruler 3 away from the pull plate 5, a connecting plate is provided on one side of one end of the measuring ruler body 1, and the connecting plate is engaged with the pull plate 5, a bolt 6 is threadedly installed on one side of the pull plate 5, and the bolt 6 is threadedly connected to the connecting plate.

[0041] A positioning hole 2 is formed through the center of one end of the measuring ruler body 1 ; when the device is used, the initial point of measurement corresponds to the positioning hole 2 .

[0042] Ground cones 12 are installed at the four corners of the bottom end of the bottom plate 11. When the initial point is positioned in the positioning hole 2, the ground cones 12 can be embedded in the soil, so that the measuring ruler body 1 is limited to the specified position.

[0043] A bubble level 8 is installed at the top of the measuring ruler body 1 ; the bubble level 8 can be used to check the horizontal position of the measuring ruler body 1 , so that the angle adjustment component 9 can better adjust the horizontal position of the measuring ruler body 1 .

[0044] The angle adjustment assembly 9 consists of a worm wheel 901 and a worm 902. One side of the worm wheel 901 is meshed with the worm 902, and the bottom end of the worm 902 is rotatably connected to the top of the base plate 11. The user can rotate the worm wheel 901 by rotating the worm 902. At this time, the measuring ruler body 1 will rotate with the connecting rod as the axis. The adjustment status of the measuring ruler body 1 can be observed by observing the level bubble meter 8.

[0045] A slide groove 1 and a slide groove 2 are respectively provided on the inner walls of the two opposite sides of the U-shaped groove, and the slide groove 1 passes through one end of the measuring ruler body 1. The slide groove 1 is slidably connected to the extension ruler 1 3, and the slide groove 2 is slidably connected to the extension ruler 2 4. When the pull plate 5 is pulled outward, the extension ruler 1 3 can be completely slid out of the U-shaped groove, and the extension ruler 2 4 is slidably limited in the U-shaped groove.

[0046] The limiting assembly 15 is composed of a mounting plate 2 1501, a magnetic plate 1 1502, a slide 1503, a magnetic plate 2 1504, and an insertion rod 1505. A telescopic cavity 1403 is provided inside the shell 14, and a slot 2 1402 is provided on one side of the shell 14 through an inner wall of one side of the telescopic cavity 1403. A slot 1401 is provided below one side of the shell 14, and a sliding window is provided on the inner wall of one end of the telescopic cavity 1403 through an inner wall of one side of the slot 1401. A slide 1503 is slidably installed in the telescopic cavity 1403, and the slide 1503 slides toward the sliding surface. A plug rod 1505 is fixed at the center of one side of the movable window, and a spring 1 is sleeved on the outside of the plug rod 1505, and the two ends of the spring 1 are connected to the inner wall of the telescopic cavity 1403 and the slide 1503. A mounting plate 2 1501 is fixed to the inner wall of one end of the U-shaped groove, and the mounting plate 2 1501 passes through the sliding connection slot 2 1402. A magnetic plate 1502 is provided on the side of the mounting plate 2 1501 facing the plug rod 1505, and the magnetic plate 1502 is magnetically connected to the magnetic plate 2 1504. The magnetic plate 2 1504 is arranged on the side of the slide 1503 facing away from the plug rod 1505. The limit plate 301 is provided with a limit slot 302 through which the limit plate 301 is engaged with the sliding connection slot 1 1401, and the insertion rod 1505 is engaged with the limit slot 302; when the extension ruler 1 3 slides outward to make the limit plate 301 engaged with the slot 1 1401, the outward pulling force can make the shell 14 slide outward, at this time the mounting plate 2 1501 is disconnected from the slot 2 1402 and the magnetic plate 1 1502 is disconnected from the magnetic plate 2 1504, at this time the elastic potential energy of the spring 1 will be expanded to make the insertion rod 1505 slide and engage with the limit slot 302, thereby After completing the connection between the extension ruler 1 3 and the shell 14, after connecting the shell 14, the extension ruler 2 4 can be pulled out by pulling, and the use of the extension ruler 2 4 can be started. Similarly, the reverse operation is performed. When the use of this device is finished, the pull plate 5 is pushed in the direction of the measuring ruler body 1. The extension ruler 2 4 first slides into the U-shaped groove, and the shell 14 then enters the U-shaped groove. At this time, the mounting plate 2 1501 is inserted into the slot 2 1402, the magnetic plate 1 1502 magnetically attracts the magnetic plate 2 1504, and the insertion rod 1505 is disconnected from the limit slot 302. At this time, the extension ruler 1 3 will be stored in the U-shaped groove without limit.

[0047] A ground cone 10 is slidably installed through the center of the pull plate 5, and a spring 2 is sleeved on the outer side of the top end of the ground cone 10; when the pull plate 5 is pulled to the measuring point, the ground cone 10 can be slid downward so that its bottom end is embedded in the soil at the measuring point, thereby completing the position limit of the pull plate 5.

[0048] The working principle and use process of the present invention are as follows: when using the present device, the measuring initial point corresponds to the positioning hole 2. After the initial point is positioned in the positioning hole 2, the ground cone 2 12 can be embedded in the soil, so that the measuring ruler body 1 is limited to the specified position. The user can rotate the worm gear 901 by turning the worm 902. At this time, the measuring ruler body 1 will rotate with the connecting rod as the axis. The adjustment state of the measuring ruler body 1 can be observed by observing the level bubble meter 8. When the pull plate 5 is pulled outward, the extension ruler 1 3 can completely slide out of the U-shaped groove, and the extension ruler 2 4 is slidably limited in the U-shaped groove. When the extension ruler 1 3 slides outward to make the limiting plate 301 fit into the slot 1 1401, the outward pulling force can make the shell 14 slide outward. At this time, the mounting plate 2 1501 is disconnected from the slot 2 1402 and the magnetic plate 1 1502 is disconnected from the magnetic plate 2 150 After the pull plate 5 is pulled to the measuring point, the cone 10 can be slid downward so that its bottom end is engaged with the soil at the measuring point, thereby completing the position limit of the pull plate 5.

[0049] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements that are inherent to such process, method, article or apparatus.

[0050] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. The above is only a preferred implementation method of the present invention. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of the present invention, they can make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the concept and technical solution of the present invention to other occasions without improvement, should be regarded as the scope of protection of the present invention.

Claims

1. A measuring ruler, characterized in that: The invention comprises a measuring ruler body (1), a through hole (7) is provided through the center of the measuring ruler body (1), an angle adjustment assembly (9) is provided in the through hole (7), the angle adjustment assembly (9) comprises a worm gear (901), a connecting rod is fixedly provided through the center of the worm gear (901), the two ends of the connecting rod are fixedly connected to the centers of the inner walls of both sides of the through hole (7), the connecting rods both pass through the top of the mounting plate (13) and are rotatably connected thereto, and the mounting plate (13) is provided with two groups of top ends of the bottom plate (11) opposite to each other, the bottom plate (11) is arranged below the measuring ruler body (1), a U-shaped groove is provided inside the measuring ruler body (1), and an extension ruler (3) and an extension ruler (3) are respectively slidably arranged on both sides of the U-shaped groove. An extension ruler 2 (4), one end of the extension ruler 1 (3) is connected to a pull plate (5), and the pull plate (5) is arranged on one end of the measuring ruler body (1), a shell (14) is fixedly provided on one end of the extension ruler 2 (4) facing the pull plate (5), and the shell (14) is slidably arranged on one end of the U-shaped groove, a limiting component (15) is arranged in the shell (14), the limiting component (15) is connected to the limiting plate (301), and the limiting plate (301) is fixed on one side of the end of the extension ruler 1 (3) away from the pull plate (5), a connecting plate is provided on one side of one end of the measuring ruler body (1), and the connecting plate is engaged with the pull plate (5), a bolt (6) is threadedly installed on one side of the pull plate (5), and the bolt (6) is threadedly connected to the connecting plate.

2. A measuring ruler according to claim 1, characterized in that: A positioning hole (2) is provided through the center of one end of the measuring ruler body (1).

3. A measuring ruler according to claim 1, characterized in that: Ground cones (12) are installed at the four corners of the bottom end of the bottom plate (11).

4. A measuring ruler according to claim 1, characterized in that: A level bubble gauge (8) is installed on the top of the measuring ruler body (1).

5. The measuring ruler according to claim 1, characterized in that: The angle adjustment assembly (9) is composed of a worm wheel (901) and a worm (902). One side of the worm wheel (901) is meshedly connected to the worm (902), and the bottom end of the worm (902) is rotatably connected to the top end of the base plate (11).

6. The measuring ruler according to claim 1, characterized in that: A slide groove 1 and a slide groove 2 are respectively provided on the inner walls of the two opposite sides of the U-shaped groove, and the slide groove 1 passes through one end of the measuring ruler body (1). The slide groove 1 is slidably connected to the extension ruler 1 (3), and the slide groove 2 is slidably connected to the extension ruler 2 (4).

7. The measuring ruler according to claim 1, characterized in that: The limiting assembly (15) is composed of a second mounting plate (1501), a first magnetic plate (1502), a slide plate (1503), a second magnetic plate (1504), and an insertion rod (1505). A telescopic cavity (1403) is provided inside the shell (14), and a slot 2 (1402) is provided on one side of the inner wall of the telescopic cavity (1403) passing through the shell (14). A slot 1 (1401) is provided below one side of the shell (14), and a sliding window is provided on the inner wall of one side of the slot 1 (1401) passing through one end of the telescopic cavity (1403). A slide plate (1503) is slidably installed in the telescopic cavity (1403), and an insertion rod (1505) is fixed at the center of one side of the slide plate (1503) facing the sliding window. The outer side of the insertion rod (1505) is provided with a plurality of slots. The side sleeve is provided with a spring 1, and the two ends of the spring 1 are connected to the inner wall of the telescopic cavity (1403) and the slide plate (1503); a mounting plate 2 (1501) is fixedly provided at the inner wall of one end of the U-shaped groove, and the mounting plate 2 (1501) passes through the sliding connection slot 2 (1402); a magnetic plate 1 (1502) is provided on the side of the mounting plate 2 (1501) facing the insertion rod (1505), and the magnetic plate 1 (1502) is magnetically connected to the magnetic plate 2 (1504); the magnetic plate 2 (1504) is provided on the side of the slide plate (1503) facing away from the insertion rod (1505); the limiting plate (301) passes through and is provided with a limiting card slot (302); the limiting plate (301) is engaged with the sliding connection slot 1 (1401), and the insertion rod (1505) is engaged with the limiting card slot (302).

8. The measuring ruler according to claim 1, characterized in that: A ground cone 1 (10) is slidably installed through the center of the pull plate (5), and a spring 2 is sleeved on the outer side of the top end of the ground cone 1 (10).

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