A telescopic measuring rule for building work
By setting mounting slots and telescopic units on the construction engineering measuring ruler, the telescopic ruler can be extended and moved, solving the problems of limited length and insufficient accuracy of existing measuring rulers, and achieving efficient and accurate measurement results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FUJIAN WUJIAN CONSTR GRP CO LTD
- Filing Date
- 2025-05-22
- Publication Date
- 2026-06-02
AI Technical Summary
Existing construction engineering measuring rulers have limited length, making it impossible to perform effective single measurements at high points. Furthermore, foldable or telescopic rulers cannot be fully unfolded in narrow spaces, affecting measurement accuracy.
A telescopic measuring ruler for building engineering was designed. By setting a first mounting groove on the main ruler, the telescopic ruler can be telescopically installed in the mounting groove through a telescopic unit and a moving unit, and can move along the width direction of the main ruler so that the outer surface of the telescopic ruler is flush with the outer surface of the main ruler, thus ensuring measurement accuracy.
The length of the measuring ruler has been extended while ensuring measurement accuracy, thus improving the functionality and practicality of the measurement.
Smart Images

Figure CN224316945U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of construction, and in particular to a telescopic measuring ruler for construction engineering. Background Technology
[0002] Construction engineering refers to the physical engineering project formed by the construction of various types of buildings and their ancillary facilities, as well as the installation of supporting lines, pipelines, and equipment. Among them, "buildings" refer to projects with roofs, beams, columns, walls, foundations, and the ability to form internal spaces to meet people's needs for production, living, learning, and public activities.
[0003] In construction engineering inspection, measuring rulers are commonly used tools. Current technology limits the length of construction engineering measuring rulers to around one meter. When construction workers are measuring at high points, multiple overlapping measurements are required to obtain the dimensions, resulting in low efficiency and inconvenience, thus reducing their practicality and functionality. Some existing measuring rulers are foldable, but they cannot be fully extended in confined spaces. Others are telescopic, but their main scale and telescopic scale are interlocked, meaning their outer surfaces are not on the same horizontal plane when extended. Both types of rulers affect measurement accuracy and fail to adequately meet actual inspection needs.
[0004] In view of this, the inventors of this case conducted in-depth research on the above-mentioned problems, which led to the creation of this case. Utility Model Content
[0005] The purpose of this utility model is to provide a telescopic measuring ruler for building engineering to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model adopts the following technical solution:
[0007] A telescopic measuring ruler for construction engineering includes a main ruler and a telescopic ruler. The main ruler has a first end and a second end. The main ruler has a first mounting groove along its length. The first mounting groove extends from the first end to the second end and penetrates the second end. The telescopic ruler has a connecting end and a movable end. The telescopic ruler is fitted inside the first mounting groove. A telescopic unit is provided between the connecting end and the bottom of the first mounting groove for connecting the main ruler and the telescopic ruler and for driving the telescopic ruler to extend or retract into the first mounting groove. When the telescopic ruler extends out of the first mounting groove, the surface of the second end is flush with the surface of the connecting end.
[0008] A moving unit is also provided between the connecting end and the bottom of the first mounting groove to drive the telescopic ruler to move along the width direction of the main ruler.
[0009] Furthermore, the telescopic ruler has a second mounting groove along its length, and the second mounting groove has a first opening on the side near the connecting end, the diameter of the first opening being smaller than the diameter of the second mounting groove.
[0010] Furthermore, the telescopic unit includes a telescopic member that is movably inserted into the second mounting groove. One end of the telescopic member is connected to the second mounting groove, and the other end is connected to the first mounting groove. A first limiting block is provided at the end of the telescopic member connected to the second mounting groove. The first limiting block is inserted into the second mounting groove, and the diameter of the first limiting block is smaller than the diameter of the first opening.
[0011] Furthermore, the telescopic component includes a first telescopic component and a second telescopic component. The first telescopic component has a third mounting groove along its length, and the third mounting groove has a second opening on the side near the connecting end. The diameter of the second opening is smaller than the diameter of the third mounting groove. The first telescopic component is movably disposed in the second mounting groove. One end of the second telescopic component is connected to the third mounting groove, and the other end is connected to the first mounting groove. A first limiting block is disposed on the first telescopic component. A second limiting block is disposed at the end of the second telescopic component connected to the third mounting groove. The second limiting block passes through the third mounting groove, and the diameter of the second limiting block is smaller than the diameter of the second opening.
[0012] Furthermore, the moving unit includes a third limiting block disposed on the side of the telescopic member away from the first limiting block and a sliding groove disposed at the bottom of the first mounting groove. The third limiting block is embedded in the sliding groove and can slide back and forth along the length direction of the sliding groove.
[0013] Furthermore, the slide has a mechanism for the third limiting block to move to the first end of the telescopic ruler to align with the first mounting groove, and for the third limiting block to move to the side surface of the telescopic ruler to be flush with the side surface of the main ruler.
[0014] Furthermore, a limiting strip is provided on the side of the first mounting groove away from the slide groove to restrict the third limiting block from disengaging from the slide groove, and the limiting strip and the slide groove form an accommodating space for placing the third limiting block.
[0015] Furthermore, both the main ruler and the telescopic ruler have graduation lines on one side.
[0016] Furthermore, a vertical measuring device is provided on one side of both the main ruler and the telescopic ruler.
[0017] Furthermore, both the main scale and the telescopic scale are equipped with a level bubble.
[0018] By adopting the aforementioned design scheme, the beneficial effects of this utility model are as follows: by setting a first mounting groove on the main scale, the telescopic scale can be telescopically set in the first mounting groove through the telescopic unit and the moving unit. In use, the telescopic scale can extend out of the first mounting groove through the telescopic unit, and then the moving unit can move the telescopic scale along the width direction of the main scale until the outer surface of the telescopic scale is flush with the outer surface of the main scale. This makes the utility model not only extend the length of the measuring scale, but also ensure the measurement accuracy, effectively providing the functionality and practicality of the measuring scale. Attached Figure Description
[0019] Figure 1 This is a cross-sectional view of the telescopic ruler of this utility model when it is retracted.
[0020] Figure 2 This is a longitudinal sectional view of the telescopic ruler of this utility model when it is retracted;
[0021] Figure 3 This is a cross-sectional view of the telescopic ruler of this utility model when it is extended.
[0022] Figure 4 This is another lateral sectional view of the telescopic ruler of this utility model when it is extended;
[0023] Figure 5 This is a longitudinal sectional view of the telescopic ruler of this utility model when it is extended;
[0024] In the diagram: Main scale 1, First end 11, Second end 12, Telescopic scale 2, Connecting end 21, Movable end 22, First mounting groove 31, Second mounting groove 32, First opening 321, Third mounting groove 33, Second opening 331, First telescopic component 41, First limiting block 411, Second telescopic component 42, Second limiting block 421, Third limiting block 51, Slide groove 52, First positioning point 521, Second positioning point 522, Limiting strip 53, Vertical measuring device 6. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] Reference Figures 1 to 5
[0027] A telescopic measuring ruler for construction engineering includes a main ruler 1 and a telescopic ruler 2. The main ruler 1 has a first end 11 and a second end 12. The main ruler 1 has a first mounting groove 31 along its length direction. The first mounting groove 31 extends from the first end 11 to the second end 12 and penetrates the second end 12. The telescopic ruler 2 is fitted inside the first mounting groove 31.
[0028] The telescopic ruler 2 has a connecting end 21 and a movable end 22. The telescopic ruler 2 has a second mounting groove 32 along its length. The second mounting groove 32 has a first opening 321 on the side near the connecting end 21. The diameter of the first opening 321 is smaller than the diameter of the second mounting groove 32.
[0029] A telescopic unit is provided between the connecting end 21 and the bottom of the first mounting groove 31 for connecting the main ruler 1 and the telescopic ruler 2 and for driving the telescopic ruler 2 to extend or retract into the first mounting groove 31. Specifically, when the telescopic ruler 2 is fully extended out of the first mounting groove 31, the surface of the second end 12 is flush with the surface of the connecting end 21.
[0030] Specifically, the telescopic unit includes telescopic members movably inserted into the second mounting groove 32, and the telescopic members include a first telescopic member 41 and a second telescopic member 42. It is worth noting that in this application, there is at least one telescopic member. This embodiment only describes this implementation in detail with two telescopic members nested together, and other methods will not be described in detail.
[0031] The first telescopic member 41 has a third mounting groove 33 along its length, and the third mounting groove 33 has a second opening 331 on the side near the connecting end 21. The diameter of the second opening 331 is smaller than the diameter of the third mounting groove 33. The first telescopic member 41 is provided with a first limiting block 411 at the end away from the second opening 331. The first limiting block 411 passes through the second mounting groove 32, and the diameter of the first limiting block is smaller than the diameter of the first opening 321. That is, the first telescopic member 41 is movably disposed in the second mounting groove 32.
[0032] One end of the second telescopic member 42 is connected to the third mounting groove 33, and the other end is connected to the first mounting groove 31. A second limiting block 421 is provided at the end of the second telescopic member 42 connected to the third mounting groove 33. The second limiting block 421 passes through the third mounting groove 33, and the diameter of the second limiting block 421 is smaller than the diameter of the second opening 331.
[0033] Furthermore, a moving unit for driving the telescopic ruler 2 to move along the width direction of the main ruler 1 is also provided between the connecting end 21 and the bottom of the first mounting groove 31. Preferably, the moving unit includes a third limiting block 51 disposed on the side of the second telescopic member 42 away from the second limiting block 421 and a sliding groove 52 disposed on the bottom of the first mounting groove 31. The third limiting block 51 is embedded in the sliding groove 52 and can slide back and forth along the length direction of the sliding groove 52.
[0034] The slide groove 52 has a first positioning point 521 for the third limiting block 51 to move to the telescopic ruler 2 and align with the first mounting groove 31, and a second positioning point 522 for the third limiting block 51 to move to the side surface of the telescopic ruler 2 and align with the side surface of the main ruler 1. A limiting strip 53 is also provided on the side of the first mounting groove 31 away from the slide groove 52 to restrict the third limiting block 51 from disengaging from the slide groove 52. The limiting strip and the slide groove 52 together form an accommodating space for the third limiting block 51 to be placed.
[0035] Furthermore, scale lines are provided on one side of both the main scale 1 and the telescopic scale 2; a vertical measuring device 6 is provided on one side of both the main scale 1 and the telescopic scale 2; and a spirit level is provided inside both the main scale 1 and the telescopic scale 2.
[0036] By adopting the aforementioned design scheme, the beneficial effects of this utility model are as follows: by setting a first mounting groove 31 on the main scale 1, the telescopic scale 2 is telescopically mounted in the first mounting groove 31 through a telescopic unit and a moving unit. In use, the telescopic scale 2 can extend out of the first mounting groove 31 through the telescopic unit, and then the telescopic scale 2 is moved along the width direction of the main scale 1 through the moving unit until the outer surface of the telescopic scale 2 is flush with the outer surface of the main scale 1. This makes the utility model not only extend the length of the measuring scale, but also ensure the measurement accuracy, effectively providing the functionality and practicality of the measuring scale.
[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A building engineering extension measuring scale, characterised in that: The device includes a main ruler and a telescopic ruler. The main ruler has a first end and a second end. A first mounting groove is formed along the length of the main ruler, extending from the first end to the second end and penetrating the second end. The telescopic ruler has a connecting end and a movable end. The telescopic ruler is fitted inside the first mounting groove. A telescopic unit is provided between the connecting end and the bottom of the first mounting groove to connect the main ruler and the telescopic ruler and to drive the telescopic ruler to extend or retract into the first mounting groove. When the telescopic ruler extends out of the first mounting groove, the surface of the second end is flush with the surface of the connecting end. A movable unit is also provided between the connecting end and the bottom of the first mounting groove to drive the telescopic ruler to move along the width direction of the main ruler.
2. A telescopic measuring rod for construction engineering according to claim 1, characterized in that The telescopic ruler has a second mounting groove along its length. The second mounting groove has a first opening on the side near the connecting end. The diameter of the first opening is smaller than the diameter of the second mounting groove.
3. A building engineering extension measuring tape according to claim 2, wherein: The telescopic unit includes a telescopic member that is movably inserted into the second mounting groove. One end of the telescopic member is connected to the second mounting groove, and the other end is connected to the first mounting groove. A first limiting block is provided at the end of the telescopic member connected to the second mounting groove. The first limiting block is inserted into the second mounting groove, and the diameter of the first limiting block is smaller than the diameter of the first opening.
4. A building engineering extension measuring tape according to claim 3, wherein: The telescopic component includes a first telescopic component and a second telescopic component. The first telescopic component has a third mounting groove along its length, and the third mounting groove has a second opening on the side near the connecting end. The diameter of the second opening is smaller than the diameter of the third mounting groove. The first telescopic component is movably disposed in the second mounting groove. One end of the second telescopic component is connected to the third mounting groove, and the other end is connected to the first mounting groove. A first limiting block is disposed on the first telescopic component. A second limiting block is disposed at the end of the second telescopic component connected to the third mounting groove. The second limiting block passes through the third mounting groove, and the diameter of the second limiting block is smaller than the diameter of the second opening.
5. A telescopic measuring rod for construction engineering according to claim 3, characterized in that: The moving unit includes a third limiting block disposed on the side of the telescopic member away from the first limiting block and a sliding groove disposed at the bottom of the first mounting groove. The third limiting block is embedded in the sliding groove and can slide back and forth along the length direction of the sliding groove.
6. A building engineering extension measuring tape according to claim 5, characterised in that: The groove has a mechanism for the third limiting block to move to the first end of the telescopic ruler to align with the first mounting groove, and for the third limiting block to move to the side surface of the telescopic ruler to be flush with the side surface of the main ruler.
7. A telescopic measuring rod for construction work according to claim 3, characterized in that: The first mounting groove is further provided with a limiting strip on the side away from the slide groove to restrict the third limiting block from disengaging from the slide groove. The limiting strip and the slide groove form an accommodating space for the third limiting block to be placed.
8. A telescopic measuring rod for construction engineering according to claim 1, characterized in that: Both the main ruler and the telescopic ruler have graduation lines on one side.
9. A telescopic measuring rod for construction engineering according to claim 1, characterized in that: A vertical measuring device is provided on one side of both the main ruler and the telescopic ruler.
10. A telescopic measuring rod for construction engineering according to claim 1, characterized in that: Both the main scale and the telescopic scale are equipped with a level bubble.