Adjustable engineering detection ruler

Abstract

The utility model belongs to the technical field of engineering detection rulers, and particularly relates to an adjustable engineering detection ruler which comprises a first detection ruler and a first sliding groove, the first sliding groove is formed in the first detection ruler and communicated with the outside, a limiting groove is formed in the bottom face of the inner wall of the first sliding groove, and a sliding block is connected in the first sliding groove in a sliding mode. The bottom end of the sliding block extends into the limiting groove and is in sliding connection with the limiting groove, the top surface of the sliding block is fixedly connected with a second fixing block, and the top end of the second fixing block penetrates through the first sliding groove and extends to the outside; the fixing assembly is located in the sliding block and used for fixing the sliding block; the engineering detection ruler solves the problems that when the engineering detection ruler is used, the length of the engineering detection ruler cannot be adjusted according to the use condition, the application range is relatively low, and the engineering detection ruler is not convenient to use, and solves the problems that the engineering detection ruler can only detect the length and cannot detect the angle, and the engineering detection ruler is not convenient to use. And the functionality is less.

Description

Technical Field

[0001] The utility model belongs to the technical field of engineering detection rulers, and in particular relates to an adjustable engineering detection ruler. Background Art

[0002] An engineering inspection ruler is a tool used for measuring in construction projects. It is usually used to measure various sizes and angles of buildings. This inspection ruler combines the characteristics of mechanical and electronic technologies, and has the advantages of high accuracy and easy operation. Specifically, the engineering inspection ruler can be made of metal or plastic, with precise scales and graduations. It has many types, including rulers, tape measures, etc., which can be selected according to different measurement needs. Using an engineering inspection ruler, you can quickly and accurately measure various parameters of a structure, such as length, width, height, angle, etc., thereby ensuring the construction quality and accuracy of the project.

[0003] For example, the Chinese patent with the publication number CN218584074U discloses an engineering inspection ruler. The engineering inspection ruler includes a ruler body, a slide plate and a locking assembly. The temporal part of the ruler body is provided with a storage groove. The slide plate is slidably connected to the inside of the storage groove. The ruler body is installed on the top of the slide plate. The ruler body is provided with scale markings. The locking assembly includes a fixed frame, a first spring and a clamping block. The side wall of the ruler body is provided with a fixed frame. The inside of the fixed frame is slidably connected with a clamping block, and the clamping block extends to the inside of the storage groove. The first spring is connected between one end of the clamping block located inside the fixed frame and the inner wall of the fixed frame. The side wall of the slide plate is provided with a clamping groove that matches the clamping block. The engineering inspection ruler provided by the utility model has the advantage of being able to prevent the scale marks on the surface of the ruler from being worn due to friction and affecting subsequent measurements.

[0004] The above patent has the following problems:

[0005] This patent has some disadvantages when used, such as: the engineering inspection ruler cannot be adjusted according to the usage, the scope of application is low, and it is not conducive to use. In addition, the engineering inspection ruler can only detect the length but not the angle, and has less functionality. In view of this, we propose an adjustable engineering inspection ruler. Summary of the invention

[0006] The purpose of the utility model is to provide an adjustable engineering inspection ruler to solve the problems raised in the above background technology.

[0007] In view of this, the utility model provides an adjustable engineering inspection ruler, comprising:

[0008] A first detection ruler and a first slide groove, wherein the first slide groove is arranged in the first detection ruler and communicated with the outside, a limit groove is arranged on the inner wall bottom surface of the first slide groove, a slider is slidably connected in the first slide groove, and the bottom end of the slider extends into the limit groove and is slidably connected to the limit groove, a second fixed block is fixedly connected to the top surface of the slider, and the top end of the second fixed block passes through the first slide groove and extends to the outside;

[0009] A fixing component, which is located in the slider and is used to fix the slider;

[0010] A second detection ruler, wherein the second detection ruler is slidably connected in the first slide groove, and one end of the second detection ruler is located below the slider and in contact with the slider, a first rotating rod is fixedly connected to the second detection ruler, and a top end of the first rotating rod passes through the slider and the second fixed block and extends to the outside, the first rotating rod is rotatably connected to the slider and the second fixed block, a pointer is fixedly connected to the peripheral side of the first rotating rod, and the pointer is located above the second fixed block and in contact with the second fixed block;

[0011] The extrusion assembly is located in the slider and is used to fix the first rotating rod.

[0012] Based on the above structure, by setting the first slide groove, the slider and the second detection ruler, it is ensured that the slider and the second detection ruler can slide in the first slide groove, and by setting the fixing component, it is ensured that the user can fix the slider in the first slide groove and cannot move through the fixing component, and by setting the first rotating rod, it is ensured that the user can drive the second detection ruler to rotate through the first rotating rod, and by setting the extrusion component, it is ensured that the user can fix the first rotating rod in the slider and cannot rotate through the extrusion component, and by setting the limiting groove, it is ensured that when the slider moves, the bottom end of the slider can only slide in the limiting groove, so that the limiting groove limits the moving range of the slider, and by setting the second fixed block and the pointer fixed on the peripheral side of the first rotating rod, it is ensured that the user can measure the angle through the second fixed block and the pointer fixed on the peripheral side of the first rotating rod.

[0013] In the above technical solution, further, the fixing assembly includes:

[0014] The first rotating groove, the first rotating groove is opened in the sliding block and is connected with the first sliding groove and the limiting groove, the first rotating groove is rotatably connected with a second rotating rod, and the top of the second rotating rod passes through the first sliding groove and extends to the outside and is rotatably connected with the first sliding groove, the bottom end of the second rotating rod is opened with a second sliding groove, and the second sliding groove is connected with the first rotating groove, a threaded rod is slidably connected with the second sliding groove, and the bottom end of the threaded rod passes through the second sliding groove and the inner wall of the first rotating groove and extends into the limiting groove, the threaded rod is threadedly connected with the sliding block, and the bottom end of the threaded rod is fixedly connected with a first fixed block, and the first fixed block is located in the limiting groove and is slidably connected with the limiting groove.

[0015] In this technical solution, it is ensured that the user can fix the slider when the user extends the second detection ruler to a suitable position according to usage requirements.

[0016] In the above technical solution, further, the top end of the threaded rod is a rectangular structure, and the bottom end of the threaded rod is slidably connected to the limiting groove.

[0017] In the technical solution, it is ensured that the threaded rod can only slide in the second sliding groove, and it is ensured that the bottom end of the threaded rod can slide in the limiting groove.

[0018] In the above technical solution, further, the extrusion assembly includes:

[0019] The second rotating groove is arranged between the sliding block and the second fixed block and is connected with the outside world. A threaded sleeve is connected with the inner thread of the second rotating groove, and the threaded sleeve is arranged on the peripheral side of the first rotating rod. An extrusion groove connected with the second rotating groove is arranged at the bottom end of the threaded sleeve. An extrusion block fixed with the inner wall of the second rotating groove is inserted into the extrusion groove, and the extrusion block is arranged on the peripheral side of the first rotating rod.

[0020] In this technical solution, it is ensured that the overall device can detect the angle.

[0021] In the above technical solution, further, the first rotating rod is rotatably connected to the threaded sleeve and the extrusion block, and the top end of the extrusion block is inclined.

[0022] In the technical solution, it is ensured that the first rotating rod can rotate normally in the threaded sleeve and the extrusion block, and it is ensured that the extrusion block can be extruded by the extrusion groove.

[0023] In the above technical solution, further, the second fixed block is slidably connected to the first sliding groove, and the top surface of the second fixed block is provided with scale lines.

[0024] In the technical solution, it is ensured that the second fixed block can slide normally in the first sliding groove, and it is ensured that the user can detect the angle according to the scale lines set on the top surface of the second fixed block.

[0025] The beneficial effects of the utility model are:

[0026] The adjustable engineering inspection ruler ensures that the slider and the second inspection ruler can slide in the first slider through the provided first sliding groove, and ensures that the user can fix the slider in the first sliding groove through the provided fixing component and cannot move through the provided first rotating rod, and ensures that the user can drive the second inspection ruler to rotate through the provided extrusion component through the provided first rotating rod, and ensures that the user can fix the first rotating rod in the slider through the extrusion component and cannot rotate through the provided limiting groove, and ensures that when the slider moves, the bottom end of the slider can only slide in the limiting groove, so that the limiting groove limits the moving range of the slider, and ensures that the user can measure the angle through the second fixing block and the pointer fixed on the circumference of the first rotating rod through the provided second fixing block and the pointer fixed on the circumference of the first rotating rod, thereby solving the problem that the engineering inspection ruler cannot adjust the length of the engineering inspection ruler according to the usage situation when in use, has a low application range, and is not conducive to use, and solves the problem that the engineering inspection ruler can only detect the length but cannot detect the angle and has less functionality. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0028] Figure 2 It is a schematic diagram of the internal structure of the first detection ruler of the utility model;

[0029] Figure 3 This is one of the schematic diagrams of the internal structure of the slider of the utility model;

[0030] Figure 4 This is the second schematic diagram of the internal structure of the slider of the utility model.

[0031] The symbols in the figure are:

[0032] 1. First detection ruler; 2. First slide groove; 3. Limiting groove; 4. Sliding block; 5. First fixed block; 6. Second detection ruler; 7. First rotating rod; 8. Second fixed block; 9. First rotating groove; 10. Second rotating rod; 11. Second slide groove; 12. Threaded rod; 13. Second rotating groove; 14. Threaded sleeve; 15. Extrusion groove; 16. Extrusion block. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0034] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0035] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0036] It should be noted that, in the description of the present application, the orientation or positional relationship indicated by terms such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise stated, these orientation words 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 cannot be understood as limiting the scope of protection of the present application; the orientation words "inside and outside" refer to the inside and outside relative to the contour of each component itself.

[0037] It should be noted that, in the present application, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be noted that the scope of the method and device in the embodiment of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples. Example

[0038] See also Figure 1 - Figure 4 As shown, this embodiment provides an adjustable engineering inspection ruler, including:

[0039] A first detection ruler 1 and a first chute 2, the first chute 2 is arranged in the first detection ruler 1 and communicated with the outside, a limiting groove 3 is arranged on the inner wall bottom surface of the first chute 2, a slider 4 is slidably connected in the first chute 2, and the bottom end of the slider 4 extends into the limiting groove 3 and is slidably connected to the limiting groove 3, a second fixed block 8 is fixedly connected to the top surface of the slider 4, and the top end of the second fixed block 8 passes through the first chute 2 and extends to the outside;

[0040] A fixing component, which is located in the slider 4 and is used to fix the slider 4;

[0041] A second detection ruler 6, the second detection ruler 6 is slidably connected in the first slide groove 2, and one end of the second detection ruler 6 is located below the slider 4 and in contact with the slider 4, a first rotating rod 7 is fixedly connected to the second detection ruler 6, and the top end of the first rotating rod 7 passes through the slider 4 and the second fixed block 8 and extends to the outside, the first rotating rod 7 is rotatably connected to the slider 4 and the second fixed block 8, a pointer is fixedly connected to the peripheral side of the first rotating rod 7, and the pointer is located above the second fixed block 8 and in contact with the second fixed block 8;

[0042] The extrusion assembly is located in the slider 4 and is used to fix the first rotating rod 7 . Example

[0043] This embodiment provides an adjustable engineering inspection ruler, which, in addition to the technical solutions of the above embodiments, also has the following technical features, and the fixing component includes:

[0044] The first rotating groove 9 is provided in the slider 4 and is connected with the first slide groove 2 and the limiting groove 3. The second rotating rod 10 is rotatably connected in the first rotating groove 9, and the top end of the second rotating rod 10 passes through the first slide groove 2 and extends to the outside and is rotatably connected with the first slide groove 2. The bottom end of the second rotating rod 10 is provided with a second slide groove 11, and the second slide groove 11 is connected with the first rotating groove 9. A threaded rod 12 is slidably connected in the second slide groove 11, and the bottom end of the threaded rod 12 passes through the second slide groove 11 and the inner wall of the first rotating groove 9 and extends into the limiting groove 3. The threaded rod 12 is threadedly connected with the slider 4, and the bottom end of the threaded rod 12 is fixedly connected with the first fixed block 5, and the first fixed block 5 is located in the limiting groove 3 and is slidably connected with the limiting groove 3.

[0045] When the second detecting ruler 6 is in a suitable position, the user rotates the second rotating rod 10 by hand to rotate the second rotating rod 10 in the first rotating groove 9. When the second rotating rod 10 is rotated, the second rotating rod 10 will drive the threaded rod 12 to rotate through the second sliding groove 11, so that the threaded rod 12 moves downward under the action of the thread of the slider 4, so that the threaded rod 12 drives the first fixed block 5 to move downward in the limiting groove 3. When the first fixed block 5 moves to a position where it cannot move, the slider 4 will be fixed in the first sliding groove 2 and cannot move, ensuring that the user can fix the slider 4 when the second detecting ruler 6 is stretched to a suitable position according to usage requirements. Example

[0046] This embodiment provides an adjustable engineering inspection ruler, which, in addition to the technical solutions of the above embodiments, also has the following technical features: the top end of the threaded rod 12 is a rectangular structure, and the bottom end of the threaded rod 12 is slidably connected to the limit groove 3.

[0047] Here, it is ensured that the threaded rod 12 can only slide in the second sliding groove 11 , and it is ensured that the bottom end of the threaded rod 12 can slide in the limiting groove 3 . Example

[0048] This embodiment provides an adjustable engineering inspection ruler, which, in addition to the technical solutions of the above embodiments, also has the following technical features. The extrusion assembly includes:

[0049] The second rotating groove 13 is provided between the slider 4 and the second fixed block 8 and is connected to the outside. The second rotating groove 13 is internally threadedly connected with a threaded sleeve 14, and the threaded sleeve 14 is arranged on the circumferential side of the first rotating rod 7. The bottom end of the threaded sleeve 14 is provided with an extrusion groove 15 connected to the second rotating groove 13. An extrusion block 16 fixed to the inner wall of the second rotating groove 13 is inserted into the extrusion groove 15, and the extrusion block 16 is arranged on the circumferential side of the first rotating rod 7.

[0050] Among them, when the user needs to rotate the second detection ruler 6, the user rotates the threaded sleeve 14 by hand, so that the threaded sleeve 14 moves upward under the action of the thread of the second rotating groove 13. When the threaded sleeve 14 moves to a suitable position, the extrusion groove 15 releases the extrusion on the extrusion block 16, allowing the extrusion block 16 to release the extrusion on the first rotating rod 7. At this time, the fixation of the first rotating rod 7 is released, and then the user can rotate the second detection ruler 6. When the second detection ruler 6 rotates, the second detection ruler 6 will drive the first rotating rod 7 to rotate between the slider 4 and the second fixed block 8, allowing the first rotating rod 7 to drive the pointer fixed on the peripheral side of the first rotating rod 7 to move on the top surface of the second fixed block 8, ensuring that the overall device can detect the angle. Example

[0051] This embodiment provides an adjustable engineering inspection ruler, which, in addition to the technical solutions of the above embodiments, also has the following technical features: the first rotating rod 7 is rotatably connected to the threaded sleeve 14 and the extrusion block 16, and the top end of the extrusion block 16 is inclined.

[0052] Here, it is ensured that the first rotating rod 7 can rotate normally in the threaded sleeve 14 and the extrusion block 16 , and it is ensured that the extrusion block 16 can be extruded by the extrusion groove 15 . Example

[0053] This embodiment provides an adjustable engineering inspection ruler, which, in addition to the technical solutions of the above embodiments, also has the following technical features: the second fixed block 8 is slidably connected to the first slide groove 2, and the top surface of the second fixed block 8 is provided with scale lines.

[0054] Here, it is ensured that the second fixing block 8 can slide normally in the first sliding groove 2 , and it is ensured that the user can detect the angle according to the scale lines set on the top surface of the second fixing block 8 .

[0055] When the user needs to adjust the length of the overall device, the user holds the second rotating rod 10 by hand and slides it, so that the second rotating rod 10 drives the sliding block 4 to slide toward the outside in the first sliding groove 2. When the sliding block 4 slides, the sliding block 4 will drive the second detecting ruler 6 to slide toward the outside through the first rotating rod 7. When the second detecting ruler 6 slides to a suitable position, the user turns the second rotating rod 10 by hand to make the second rotating rod 10 rotate in the first rotating groove 9. When the second rotating rod 10 rotates, the second rotating rod 10 will drive the threaded rod 12 to rotate through the second sliding groove 11, so that the threaded rod 12 moves downward under the action of the thread of the sliding block 4, so that the threaded rod 12 drives the first fixing block 5 to move downward in the limiting groove 3. When the first fixing block 5 moves to a position where it cannot move, the sliding block 4 will be fixed in the first sliding groove 2 and cannot move, ensuring that the user can fix the sliding block 4 when the second detecting ruler 6 is stretched to a suitable position according to usage requirements;

[0056] When the user needs to measure the angle, the user slides the second rotating rod 10 by hand, so that the second rotating rod 10 drives the sliding block 4 to slide toward the outside along the first sliding groove 2 and the limiting groove 3. When the bottom end of the sliding block 4 moves to a position where it cannot move in the limiting groove 3, the user rotates the second rotating rod 10 by hand, so that the second rotating rod 10 rotates in the first rotating groove 9. When the second rotating rod 10 rotates, the second rotating rod 10 drives the threaded rod 12 to rotate through the second sliding groove 11, so that the threaded rod 12 moves downward under the action of the thread of the sliding block 4, so that the threaded rod 12 drives the first fixed block 5 to move downward in the limiting groove 3. When the first fixed block 5 moves to a position where it cannot move, the sliding block 4 will be fixed in the first rotating groove 9. It cannot move in the first slide groove 2, and then the user rotates the threaded sleeve 14 by hand, so that the threaded sleeve 14 moves upward under the action of the thread of the second rotating groove 13. When the threaded sleeve 14 moves to a suitable position, the extrusion groove 15 releases the extrusion on the extrusion block 16, allowing the extrusion block 16 to release the extrusion on the first rotating rod 7. At this time, the fixation of the first rotating rod 7 is released, and then the user can rotate the second detection ruler 6. When the second detection ruler 6 rotates, the second detection ruler 6 will drive the first rotating rod 7 to rotate between the slider 4 and the second fixed block 8, allowing the first rotating rod 7 to drive the pointer fixed on the peripheral side of the first rotating rod 7 to move on the top surface of the second fixed block 8, ensuring that the overall device can detect the angle.

[0057] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. An adjustable engineering inspection ruler, characterized in that: include: A first detection ruler (1) and a first slide groove (2), wherein the first slide groove (2) is provided in the first detection ruler (1) and communicates with the outside, a limit groove (3) is provided on the inner wall bottom surface of the first slide groove (2), a slider (4) is slidably connected in the first slide groove (2), and the bottom end of the slider (4) extends into the limit groove (3) and is slidably connected to the limit groove (3), a second fixed block (8) is fixedly connected to the top surface of the slider (4), and the top end of the second fixed block (8) passes through the first slide groove (2) and extends to the outside; A fixing component, the fixing component is located in the slider (4) and is used to fix the slider (4); a second detection ruler (6), the second detection ruler (6) being slidably connected in the first slide groove (2), and one end of the second detection ruler (6) being located below the slider (4) and in contact with the slider (4), a first rotating rod (7) being fixedly connected to the second detection ruler (6), and a top end of the first rotating rod (7) passing through the slider (4) and the second fixed block (8) and extending to the outside, the first rotating rod (7) being rotatably connected to the slider (4) and the second fixed block (8), a pointer being fixedly connected to the peripheral side of the first rotating rod (7), and the pointer being located above the second fixed block (8) and in contact with the second fixed block (8); A pressing assembly is located in the slider (4) and is used to fix the first rotating rod (7).

2. The adjustable engineering inspection ruler according to claim 1, characterized in that: The fixing assembly comprises: A first rotating groove (9), wherein the first rotating groove (9) is provided in the slider (4) and is connected to the first sliding groove (2) and the limiting groove (3); a second rotating rod (10) is rotatably connected in the first rotating groove (9), and the top end of the second rotating rod (10) passes through the first sliding groove (2) and extends to the outside to be rotatably connected to the first sliding groove (2); a second sliding groove (11) is provided at the bottom end of the second rotating rod (10), and the second sliding groove (11) is connected to the first rotating groove (9); a threaded rod (12) is slidably connected in the second sliding groove (11), and the bottom end of the threaded rod (12) passes through the second sliding groove (11) and the inner wall of the first rotating groove (9) and extends into the limiting groove (3); the threaded rod (12) is threadedly connected to the slider (4); a first fixed block (5) is fixedly connected at the bottom end of the threaded rod (12), and the first fixed block (5) is located in the limiting groove (3) and is slidably connected to the limiting groove (3).

3. The adjustable engineering inspection ruler according to claim 2, characterized in that: The top end of the threaded rod (12) is in a rectangular structure, and the bottom end of the threaded rod (12) is slidably connected to the limiting groove (3).

4. The adjustable engineering inspection ruler according to claim 1, characterized in that: The extrusion assembly comprises: A second rotating groove (13), the second rotating groove (13) is provided between the slider (4) and the second fixed block (8) and is in communication with the outside, the second rotating groove (13) is internally threadedly connected with a threaded sleeve (14), and the threaded sleeve (14) is arranged on the circumference of the first rotating rod (7), the bottom end of the threaded sleeve (14) is provided with an extrusion groove (15) in communication with the second rotating groove (13), an extrusion block (16) fixed to the inner wall of the second rotating groove (13) is inserted into the extrusion groove (15), and the extrusion block (16) is arranged on the circumference of the first rotating rod (7).

5. The adjustable engineering inspection ruler according to claim 4, characterized in that: The first rotating rod (7) is rotatably connected to the threaded sleeve (14) and the extrusion block (16), and the top end of the extrusion block (16) is arranged in an inclined manner.

6. The adjustable engineering inspection ruler according to claim 1, characterized in that: The second fixed block (8) is slidably connected to the first sliding groove (2), and a scale line is provided on the top surface of the second fixed block (8).

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