A conveniently portable engineering measuring scale

Abstract

The utility model belongs to engineering measuring scale technical field especially relates to a portable engineering measuring scale, which comprises: first rectangular board, one end of first rectangular board rotatably installs the connecting plate, is rotatably installed with second rectangular board on the connecting plate and is located one side of first rectangular board, and the top of first rectangular board and second rectangular board is all engraved with the scale line, limiting assembly, limiting assembly is located in first rectangular board, and be used for limiting the connecting plate, second sliding slot, second sliding slot is set up in second rectangular board, rotatably installs screw rod in second sliding slot, the whole device in the utility model when using, can ensure that first rectangular board, second rectangular board are folded, thereby can reduce the length of whole device, and the staff carries conveniently, simultaneously, the whole device can not only be used as engineering measuring scale, but also can be used as compass, reduces the number of staff's carrying tool, is more convenient.

Description

Technical Field

[0001] This utility model belongs to the field of engineering measuring ruler technology, and in particular relates to a portable engineering measuring ruler. Background Technology

[0002] In construction engineering, precise measurements of building dimensions, such as side lengths, heights, and room sizes, are required. For example, when building a wall, using an engineering measuring ruler ensures that the wall's length and height meet design requirements, guaranteeing the accuracy of the building structure. Therefore, engineering measuring rulers are generally necessary.

[0003] Traditional engineering surveying rulers are quite long, making them inconvenient for workers to carry. Furthermore, some construction projects use circular elements, requiring workers to use compasses for marking lines. This necessitates workers carrying both the surveying ruler and the compass, which is also inconvenient. Therefore, we propose a more portable engineering surveying ruler. Summary of the Invention

[0004] The purpose of this invention is to provide a portable engineering measuring ruler to solve the problems mentioned in the background art.

[0005] In view of this, the present invention provides a portable engineering measuring ruler, comprising:

[0006] A first rectangular plate, a connecting plate is rotatably mounted on one end of the first rectangular plate, and a second rectangular plate is rotatably mounted on the connecting plate and on one side of the first rectangular plate. The top of both the first rectangular plate and the second rectangular plate are engraved with scale lines.

[0007] A limiting component, located within the first rectangular plate, is used to limit the movement of the connecting plate;

[0008] The second slide groove is formed inside the second rectangular plate. A threaded rod is rotatably installed inside the second slide groove. A sliding rod is threadedly installed on the threaded rod and inside the second slide groove. A fixed rod is fixedly installed at one end of the sliding rod. A first groove is formed inside the first rectangular plate. A pencil is placed in the first groove. Two hand-tightening bolts are threadedly installed on the top of the first rectangular plate. One end of each of the two hand-tightening bolts passes through the top of the first rectangular plate and contacts the pencil.

[0009] A drive assembly, located within a second rectangular plate, is used to drive the threaded rod to rotate.

[0010] In this technical solution, when the first rectangular plate and the second rectangular plate need to be unfolded, the limiting component is set to release the limiting component from the connecting plate. Then, the operator can keep the first rectangular plate stationary and rotate the second rectangular plate 180°. At this time, the connecting plate will rotate 90°, so that the scale lines on the first rectangular plate and the scale lines on the second rectangular plate are on the same horizontal line. At this time, the limiting component will limit the position of the connecting plate, and the first and second rectangular plates will no longer rotate.

[0011] When drawing a circle using the first and second rectangular plates, the drive assembly rotates the threaded rod. The threaded rod then moves the sliding rod, displacing the fixed rod from the second groove to the outside. Next, the two hand-tightening bolts are rotated, moving away from the first groove and out of contact with the pencil. The pencil is then moved to the outside, with one end aligned with the fixed rod. The two hand-tightening bolts are rotated again, moving downwards until one end contacts and holds the pencil. The limiting assembly then releases the limiting on the connecting plate, allowing the second rectangular plate to rotate to a suitable angle with the first. The rubber ring provides damping during rotation, preventing excessive looseness that would prevent drawing a circle. Finally, the operator can draw a circle using the fixed rod as the axis.

[0012] In the above technical solution, the limiting component further includes:

[0013] A sliding groove is formed inside the first rectangular plate and located on one side of the connecting plate. A limiting rod is slidably installed inside the sliding groove. One end of the limiting rod passes through the top of the sliding groove and extends to the outside. An L-shaped groove is formed on the connecting plate. The other end of the limiting rod passes through one side of the sliding groove and extends into the L-shaped groove. A spring is fixedly installed on the side of the limiting rod away from the connecting plate and is tightly welded to the inner wall of the sliding groove.

[0014] In this technical solution, when the limiting rod is manually moved, it will move away from the connecting plate until one end of the limiting rod moves out of the L-shaped groove. At this time, the spring will be compressed by the limiting rod and the connecting plate will be released from the limiting position.

[0015] In the above technical solution, furthermore, the other end of the limiting rod is inserted into the L-shaped groove, and the limiting rod has an L-shaped structure.

[0016] In this technical solution, it is ensured that the other end of the limiting rod can be inserted into the L-shaped groove, so that the operator can manually move the limiting rod.

[0017] In the above technical solution, the driving component further includes:

[0018] A cavity is formed within a first rectangular plate and located on one side of a second sliding groove. A worm gear is rotatably mounted within the cavity, with one end of the worm gear penetrating the top of the cavity and extending to the outside. A worm wheel is rotatably mounted within the cavity and located on one side of the worm gear, with one end of the worm wheel penetrating one side of the cavity, extending into the second sliding groove, and coaxially connected to the threaded rod.

[0019] In this technical solution, the worm is turned by hand. Under the action of meshing, the worm will drive the worm wheel to rotate, and the worm wheel will then drive the threaded rod to rotate.

[0020] In the above technical solution, the worm gear meshes with the worm wheel, and one end of the worm wheel is coaxially connected to the threaded rod.

[0021] In this technical solution, under the action of meshing, it is ensured that the rotation of the worm gear can drive the rotation of the worm wheel, and the rotation of the worm wheel can drive the rotation of the threaded rod.

[0022] In the above technical solution, rubber rings are further fixedly installed on the four rotating shafts of the connecting plate.

[0023] In this technical solution, the rubber ring provides a certain degree of damping when the first and second rectangular plates rotate on the connecting plate, preventing them from becoming too loose and thus making it impossible to draw a circle.

[0024] In the above technical solution, the sliding rod is further slidably connected to the second sliding groove.

[0025] In this technical solution, it is ensured that the sliding rod can slide within the second groove.

[0026] The beneficial effects of this utility model are:

[0027] 1. This portable engineering measuring ruler, through the cooperation of the first rectangular plate, the second rectangular plate, the scale lines, the connecting plate and the limiting component, ensures that the first rectangular plate and the second rectangular plate can be folded, thereby reducing the overall length of the device and making it easy for workers to carry.

[0028] 2. This portable engineering measuring ruler, through the cooperation of the hand-tightening bolt, the first groove, the sliding rod, the fixed rod, the threaded rod, the pencil, the second sliding groove, and the drive assembly, ensures that the whole device can be used not only as an engineering measuring ruler but also as a compass, reducing the number of tools that workers need to carry and making it more convenient. Attached Figure Description

[0029] Figure 1 This is one of the overall structural schematic diagrams of this utility model;

[0030] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0031] Figure 3 This is the second schematic diagram of the overall structure of this utility model;

[0032] Figure 4 This is a schematic diagram of the internal structure of the first rectangular plate in this utility model;

[0033] Figure 5 This utility model Figure 4 Enlarged structural diagram at point B;

[0034] Figure 6 This is one of the structural diagrams of the interior of the second rectangular plate in this utility model;

[0035] Figure 7 This is the second schematic diagram of the internal structure of the second rectangular plate in this utility model;

[0036] Figure 8 This utility model Figure 7 Enlarged structural diagram at point C;

[0037] Figure 9 This is a schematic diagram of the connecting plate and rubber ring in this utility model;

[0038] Figure 10 This is the third schematic diagram of the internal structure of the second rectangular plate in this utility model.

[0039] The markings in the diagram are as follows:

[0040] 1. First rectangular plate; 2. Second rectangular plate; 3. Scale line; 4. Hand-tightening bolt; 5. First groove; 6. Connecting plate; 7. Worm gear; 8. Spring; 9. Sliding groove; 10. Limiting rod; 11. L-shaped groove; 12. Rubber ring; 13. Sliding rod; 14. Fixing rod; 15. Threaded rod; 16. Pencil; 17. Second sliding groove; 18. Cavity; 19. Worm gear. Detailed Implementation

[0041] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0042] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0043] It should be noted that the terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and are not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0044] It should be noted that in the description of this application, the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" 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 application and simplifying the description. Unless otherwise stated, these directional terms 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, and therefore should not be construed as a limitation on the scope of protection of this application. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0045] It should be noted that, in this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples. Example

[0046] Please see Figure 1 - Figure 10 As shown, this embodiment provides a portable engineering measuring ruler, including:

[0047] A first rectangular plate 1, a connecting plate 6 is rotatably mounted on one end of the first rectangular plate 1, and a second rectangular plate 2 is rotatably mounted on the connecting plate 6 and on one side of the first rectangular plate 1. Both the first rectangular plate 1 and the second rectangular plate 2 are engraved with scale lines 3 on their tops.

[0048] A limiting component is located within the first rectangular plate 1 and is used to limit the connection plate 6.

[0049] The second slide groove 17 is opened in the second rectangular plate 2. A threaded rod 15 is rotatably installed in the second slide groove 17. A sliding rod 13 is threadedly installed on the threaded rod 15 and located in the second slide groove 17. A fixing rod 14 is fixedly installed at one end of the sliding rod 13. A first groove 5 is opened in the first rectangular plate 1. A pencil 16 is placed in the first groove 5. Two hand-tightening bolts 4 are threadedly installed on the top of the first rectangular plate 1. One end of each hand-tightening bolt 4 passes through the top of the first rectangular plate 1 and contacts the pencil 16.

[0050] The drive assembly is located inside the second rectangular plate 2 and is used to drive the threaded rod 15 to rotate.

[0051] When the first rectangular plate 1 and the second rectangular plate 2 need to be unfolded, the limiting component is set to release the limiting component from the connecting plate 6. Then, the worker can keep the first rectangular plate 1 stationary and rotate the second rectangular plate 2 by 180°. At this time, the connecting plate 6 will rotate 90°, so that the scale line 3 on the first rectangular plate 1 and the scale line 3 on the second rectangular plate 2 are on the same horizontal line. At this time, the limiting component will limit the position of the connecting plate 6, and the first rectangular plate 1 and the second rectangular plate 2 will no longer rotate.

[0052] When drawing a circle using the first rectangular plate 1 and the second rectangular plate 2, the drive assembly rotates the threaded rod 15. Under the action of the thread, the threaded rod 15 displaces the sliding rod 13, causing the fixed rod 14 to move from the second groove 17 to the outside. Then, rotating the two hand-tightening bolts 4 causes them to move away from the first groove 5 under the action of the thread, thus removing them from contact with the pencil 16. The pencil 16 can then be moved to the outside, so that one end of the pencil 16 is on the same horizontal line as one end of the fixed rod 14. Then, rotating the two hand-tightening bolts 14 again... The hand-tightening bolts 4, under the action of the threads, cause the two hand-tightening bolts 4 to move downwards until one end of the hand-tightening bolts 4 contacts and presses against the pencil 16. Then, the limiting component can be used again to release the limiting component on the connecting plate 6. Then, the second rectangular plate 2 can be rotated so that the angle between the second rectangular plate 2 and the first rectangular plate 1 is rotated to a suitable position. Under the action of the rubber ring 12, the first rectangular plate 1 and the second rectangular plate 2 can have a certain damping when rotating on the connecting plate 6, so as to avoid being too loose and unable to draw a circle. Then, the worker can fix the rod 14 as the axis to draw a circle. Example

[0053] This embodiment provides a portable engineering measuring ruler, which, in addition to the technical solutions of the above embodiments, also has the following technical features, including a limiting component:

[0054] A sliding groove 9 is formed inside the first rectangular plate 1 and located on one side of the connecting plate 6. A limiting rod 10 is slidably installed inside the sliding groove 9. One end of the limiting rod 10 passes through the top of the sliding groove 9 and extends to the outside. An L-shaped groove 11 is formed on the connecting plate 6. The other end of the limiting rod 10 passes through one side of the sliding groove 9 and extends into the L-shaped groove 11. A spring 8 is fixedly installed on the side of the limiting rod 10 away from the connecting plate 6 and is tightly welded to the inner wall of the sliding groove 9.

[0055] When the limit rod 10 is manually moved, it will move away from the connecting plate 6 until one end of the limit rod 10 moves out of the L-shaped groove 11. At this time, the spring 8 will be compressed by the limit rod 10 and the connecting plate 6 will be released from the limit. Example

[0056] This embodiment provides a portable engineering measuring ruler. In addition to the technical solutions of the above embodiments, it also has the following technical features: the other end of the limiting rod 10 is inserted into the L-shaped groove 11, and the limiting rod 10 has an L-shaped structure.

[0057] Specifically, it is ensured that the other end of the limiting rod 10 can be inserted into the L-shaped groove 11, so that the staff can manually move the limiting rod 10. Example

[0058] This embodiment provides a portable engineering measuring ruler, which, in addition to the technical solutions of the above embodiments, also has the following technical features, including a driving component:

[0059] A cavity 18 is formed inside the first rectangular plate 1 and located on one side of the second slide groove 17. A worm gear 7 is rotatably installed inside the cavity 18. One end of the worm gear 7 passes through the top of the cavity 18 and extends to the outside. A worm wheel 19 is rotatably installed inside the cavity 18 and located on one side of the worm gear 7. One end of the worm wheel 19 passes through one side of the cavity 18, extends into the second slide groove 17, and is coaxially connected to the threaded rod 15.

[0060] When the worm 7 is turned by hand, the worm 7 will drive the worm wheel 19 to rotate under the action of meshing, and the worm wheel 19 will drive the threaded rod 15 to rotate. Example

[0061] This embodiment provides a portable engineering measuring ruler. In addition to the technical solutions of the above embodiments, it also has the following technical features: the worm 7 meshes with the worm wheel 19, and one end of the worm wheel 19 is coaxially connected to the threaded rod 15.

[0062] Under the action of meshing, it is ensured that the rotation of worm 7 can drive the rotation of worm wheel 19, and the rotation of worm wheel 19 can drive the rotation of threaded rod 15. Example

[0063] This embodiment provides a portable engineering measuring ruler. In addition to the technical solutions of the above embodiments, it also has the following technical features: rubber rings 12 are fixedly installed on the four rotating shafts on the connecting plate 6.

[0064] The rubber ring 12 provides a certain degree of damping when the first rectangular plate 1 and the second rectangular plate 2 rotate on the connecting plate 6, preventing them from being too loose and thus unable to draw a circle. Example

[0065] This embodiment provides a portable engineering measuring ruler, which, in addition to the technical solution of the above embodiment, also has the following technical features: the sliding rod 13 is slidably connected to the second sliding groove 17.

[0066] Specifically, this ensures that the sliding rod 13 can slide within the second groove 17.

[0067] Working principle: When the first rectangular plate 1 and the second rectangular plate 2 need to be unfolded, the operator can first manually move the limiting rod 10. The limiting rod 10 will move away from the connecting plate 6 until one end of the limiting rod 10 moves out of the L-shaped groove 11. At this time, the spring 8 will be compressed by the limiting rod 10 and will be released from the limiting position. Then the operator can keep the first rectangular plate 1 still and rotate the second rectangular plate 2 so that the second rectangular plate 2 rotates 180°. At this time, the connecting plate 6 will rotate 90°, so that the scale line 3 on the first rectangular plate 1 and the scale line 3 on the second rectangular plate 2 are on the same horizontal line. At this time, under the action of the rebound force of the spring 8, the spring 8 will push the limiting rod 10 towards the connecting plate 6 until one end of the limiting rod 10 is inserted into the L-shaped groove 11 again, thereby limiting the position of the connecting plate 6. The first rectangular plate 1 and the second rectangular plate 2 will no longer rotate.

[0068] When drawing a circle using the first rectangular plate 1 and the second rectangular plate 2, the operator can first manually rotate the worm gear 7. Under the meshing action, the worm gear 7 will drive the worm wheel 19 to rotate, which in turn will drive the threaded rod 15 to rotate. Under the action of the thread, the threaded rod 15 will drive the sliding rod 13 to move, causing the fixed rod 14 to move from the second groove 17 to the outside. After moving to the appropriate position, stop rotating the worm gear 7, and then rotate the two hand-tightening bolts 4. Under the action of the thread, the two hand-tightening bolts 4 will move away from the first groove 5, so that the hand-tightening bolts 4 are no longer in contact with the pencil 16. Then the pencil 16 can be moved to the outside, so that one end of the pencil 16 is located at one end of the fixed rod 14. On the same horizontal line, rotate the two hand-tightening bolts 4 again. Under the action of the threads, the two hand-tightening bolts 4 will move downward until one end of the hand-tightening bolt 4 contacts and presses the pencil 16. Then, the limiting rod 10 can be moved again to move away from the connecting plate 6 until one end of the limiting rod 10 moves out of the L-shaped groove 11. Then, the second rectangular plate 2 can be rotated so that the angle between the second rectangular plate 2 and the first rectangular plate 1 is rotated to a suitable position. Under the action of the rubber ring 12, the first rectangular plate 1 and the second rectangular plate 2 can have a certain damping when rotating on the connecting plate 6 to avoid being too loose and unable to draw a circle. Then, the worker can fix the rod 14 as the axis to draw a circle.

[0069] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A portable engineering measuring ruler, characterized in that, include: A first rectangular plate (1) is rotatably mounted on one end of the first rectangular plate (1), and a second rectangular plate (2) is rotatably mounted on the connecting plate (6) and on one side of the first rectangular plate (1). The top of the first rectangular plate (1) and the second rectangular plate (2) are both engraved with scale lines (3). A limiting component is located within the first rectangular plate (1) and is used to limit the connecting plate (6); The second slide groove (17) is opened in the second rectangular plate (2). A threaded rod (15) is rotatably installed in the second slide groove (17). A sliding rod (13) is threaded on the threaded rod (15) and located in the second slide groove (17). A fixing rod (14) is fixedly installed at one end of the sliding rod (13). A first groove (5) is opened in the first rectangular plate (1). A pencil (16) is placed in the first groove (5). Two hand-tightening bolts (4) are threaded on the top of the first rectangular plate (1). One end of each of the two hand-tightening bolts (4) passes through the top of the first rectangular plate (1) and contacts the pencil (16). A drive assembly located within the second rectangular plate (2) and used to drive the threaded rod (15) to rotate.

2. The portable engineering measuring ruler according to claim 1, characterized in that, The limiting component includes: A sliding groove (9) is formed inside the first rectangular plate (1) and located on one side of the connecting plate (6). A limiting rod (10) is slidably installed inside the sliding groove (9). One end of the limiting rod (10) passes through the top of the sliding groove (9) and extends to the outside. An L-shaped groove (11) is formed on the connecting plate (6). The other end of the limiting rod (10) passes through one side of the sliding groove (9) and extends into the L-shaped groove (11). A spring (8) is fixedly installed on the side of the limiting rod (10) away from the connecting plate (6) and tightly welded to the inner wall of the sliding groove (9).

3. The portable engineering measuring ruler according to claim 2, characterized in that, The other end of the limiting rod (10) is inserted into the L-shaped groove (11), and the limiting rod (10) has an L-shaped structure.

4. The portable engineering measuring ruler according to claim 1, characterized in that, The driving component includes: A cavity (18) is formed inside a first rectangular plate (1) and located on one side of a second slide groove (17). A worm gear (7) is rotatably installed inside the cavity (18). One end of the worm gear (7) passes through the top of the cavity (18) and extends to the outside. A worm wheel (19) is rotatably installed inside the cavity (18) and located on one side of the worm gear (7). One end of the worm wheel (19) passes through one side of the cavity (18) and extends into the second slide groove (17) and is coaxially connected to the threaded rod (15).

5. A portable engineering measuring ruler according to claim 4, characterized in that, The worm (7) meshes with the worm wheel (19), and one end of the worm wheel (19) is coaxially connected to the threaded rod (15).

6. The portable engineering measuring ruler according to claim 1, characterized in that, Rubber rings (12) are fixedly installed on the four rotating shafts on the connecting plate (6).

7. A portable engineering measuring ruler according to claim 1, characterized in that, The sliding rod (13) is slidably connected to the second sliding groove (17).

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