Anti-scratch measuring tape for measuring construction cost

Abstract

The utility model belongs to the technical field of measuring tapes, and particularly discloses an anti-scratch measuring tape for measuring engineering cost, which comprises a measuring tape shell, a tape box is mounted in the measuring tape shell, a steel ruler is mounted in the tape box, a sliding groove and a through groove are respectively formed in the outer surface of the measuring tape shell, a limiting groove is formed in the lower surface of the inner wall of the through groove, and a limiting groove is formed in the inner wall of the limiting groove. A limiting storage mechanism is slidably installed in the limiting groove, one end of the steel ruler moves back and forth along the through groove, and a clamping plate mechanism is arranged at the position, located at the upper end of the through groove, of the surface of the measuring tape shell. According to the measuring tape storage device, the limiting storage mechanism moves along the through groove, when the measuring tape is stored, the limiting table and the rubber soft plate in the limiting box limit the upper surface, the lower surface, the left surface and the right surface of a steel ruler respectively, and the situation that the steel ruler shakes and scratches a user in the storage process is prevented; when long-distance measurement needs to be carried out, the T-shaped column is pulled to lift the L-shaped clamping plate, the limiting box slides out along the through groove to limit the measuring tape and provide extension at the same time, and the stability of the steel ruler is improved when long data are measured.

Description

Technical Field

[0001] The utility model belongs to the technical field of tape measures, and in particular relates to an anti-scratch tape measure for engineering cost measurement. Background Art

[0002] Project cost refers to the construction costs that constitute the estimated or actual expenditure of the project during the construction period. Project cost is a tool for project decision-making. During the project decision-making stage, the construction project cost is an important basis for project financial analysis and economic evaluation. It provides accurate data for project cost. Budgeting needs to be achieved through surveying and mapping. Surveying and mapping requires the accuracy of surveying and mapping results to improve the accuracy of budgeting results. In the existing project cost surveying and mapping, tape measures are often used. However, when the steel ruler is retracted, the operator's hand is often cut by the side due to the fast retraction speed, causing personal injury. Utility Model Content

[0003] The utility model aims to solve the shortcomings in the prior art and proposes an anti-scratch measuring tape for engineering cost.

[0004] In order to achieve the above purpose, the utility model provides an anti-scratch tape measure for engineering cost measurement, including a tape measure shell, a ruler box is installed inside the tape measure shell, a steel ruler is installed inside the ruler box, a sliding groove and a through groove are respectively provided on the outer surface of the tape measure shell, a limiting groove is provided on the lower surface of the inner wall of the through groove, a limiting storage mechanism is slidably installed in the limiting groove, one end of the steel ruler moves back and forth along the through groove, and a clamping plate mechanism is provided on the surface of the tape measure shell at the upper end of the through groove.

[0005] In the above technical solution, further, a sliding buckle is slidably installed inside the sliding groove, and a limiting arc plate is fixedly installed at the rear end of the sliding buckle.

[0006] Compared with the above technical solution, further, the limit storage mechanism includes a limit box slidably installed on the upper end of the limit groove, a slider is fixedly installed on the lower surface of the limit box, protrusions are fixedly installed on both ends of the upper surface of the limit box, limit platforms are fixedly installed on the upper and lower ends of both sides of the inner wall of the limit box, and a number of equidistantly arranged rubber soft plates are installed on the upper and lower surfaces of the inner wall of the limit box.

[0007] In the above technical solution, further, the clamping plate mechanism includes a fixed platform fixedly installed on the surface of the tape measure housing, the fixed platform is penetrated by a T-shaped column, an L-shaped clamping plate is fixedly installed on the lower end of the T-shaped column, and a spring is provided at the portion of the T-shaped column between the L-shaped clamping plate and the fixed platform.

[0008] In the above technical solution, further, a plurality of equally spaced pressure wheels are provided at the lower end of the limiting arc plate, and the pressure wheels are driven by sliding buckles to fit with a rotating rod fixedly mounted on the inner wall of the tape measure housing to limit the steel ruler.

[0009] In the above technical solution, further, the limit platforms on the left and right sides limit the steel ruler to the left and right, and the rubber soft plates on the upper and lower sides limit the steel ruler vertically.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] 1. The limit storage mechanism in the utility model moves along the through slot. When the tape measure is stored, the limit platform and the rubber soft plate inside the limit box respectively limit the upper and lower surfaces and the left and right surfaces of the steel ruler to prevent the steel ruler from shaking and scratching the user during the storage process;

[0012] 2. Use the card plate mechanism to limit the limit storage mechanism. When not in use, the spring keeps the T-shaped column pressing down on the L-shaped card plate. When long-distance measurement is required, pull the T-shaped column to lift the L-shaped card plate, slide the limit box along the through slot to limit the tape measure and provide a certain extension, thereby improving the stability of the steel ruler when measuring longer data. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of an anti-scratch measuring tape for engineering cost of the utility model;

[0014] Figure 2 This is a cross-sectional view of an anti-scratch measuring tape for engineering cost of the utility model;

[0015] Figure 3 This is a schematic diagram of the structure of a ruler box of a scratch-resistant measuring tape for engineering cost according to the utility model;

[0016] Figure 4 This is a schematic diagram of the structure of a limit box of an anti-scratch tape measure for engineering cost according to the utility model;

[0017] Figure 5 The utility model is a kind of scratch-resistant measuring tape for engineering cost Figure 3 Enlarged view of point A in the middle.

[0018] Among them: 1. Tape measure housing; 2. Sliding buckle; 3. Slide groove; 4. Through groove; 5. Steel ruler; 6. Ruler box; 7. Limit arc plate; 8. Pressure wheel; 9. Limit box; 10. Bump; 11. Sliding block; 12. Rubber soft board; 13. Limit platform; 14. Fixed platform; 15. T-shaped column; 16. Spring; 17. L-shaped card plate; 18. Rotating rod; 19. Limit groove. DETAILED DESCRIPTION

[0019] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0020] like Figure 1-Figure 5 The illustrated embodiment shows a scratch-resistant measuring tape for engineering cost measurement, comprising a measuring tape housing 1, a measuring tape box 6 installed inside the measuring tape housing 1, a steel ruler 5 installed inside the ruler box 6, a sliding groove 3 and a through groove 4 respectively provided on the outer surface of the measuring tape housing 1, a limiting groove 19 provided on the lower surface of the inner wall of the through groove 4, a limiting storage mechanism slidably installed on the limiting groove 19, one end of the steel ruler 5 moves back and forth along the through groove 4, and a clamping plate mechanism is provided on the surface of the measuring tape housing 1 at the upper end of the through groove 4.

[0021] like Figure 2 As shown, a sliding buckle 2 is slidably installed inside the slide groove 3, and a limiting arc plate 7 is fixedly installed at the rear end of the sliding buckle 2. A plurality of equally spaced pressure wheels 8 are provided at the lower end of the limiting arc plate 7. The pressure wheels 8 are driven by the sliding buckle 2 to fit with the rotating rod 18 fixedly installed on the inner wall of the tape measure housing 1 to limit the steel ruler 5. The sliding buckle 2 is slid along the slide groove 3. When sliding downward, the pressure wheel 8 at the lower end of the limiting arc plate 7 fits the upper surface of the steel ruler 5. As the downward pressure distance increases, the distance between the pressure wheel 8 and the rotating rod 18 changes, thereby realizing the speed at which the steel ruler 5 moves in the through groove 4.

[0022] like Figure 4 As shown, the limit storage mechanism includes a limit box 9 slidably mounted on the upper end of the limit slot 19, a slider 11 is fixedly mounted on the lower surface of the limit box 9, and bumps 10 are fixedly mounted on both ends of the upper surface of the limit box 9. Limit platforms 13 are fixedly mounted on the upper and lower ends of both sides of the inner wall of the limit box 9, and a number of equally spaced soft rubber plates 12 are installed on the upper and lower surfaces of the inner wall of the limit box 9. The limit platforms 13 on the left and right sides limit the steel ruler 5 to the left and right, and the rubber soft plates 12 on the upper and lower sides limit the steel ruler 5 vertically. Limiting the surroundings of the steel ruler 5 prevents unexpected damage to the user caused by shaking during the storage process.

[0023] like Figure 5 As shown, the card plate mechanism includes a fixed platform 14 fixedly installed on the surface of the tape measure housing 1, a T-shaped column 15 is installed through the fixed platform 14, an L-shaped card plate 17 is fixedly installed at the lower end of the T-shaped column 15, and a spring 16 is provided at the portion of the T-shaped column 15 located between the L-shaped card plate 17 and the fixed platform 14. Under normal conditions, the spring 16 keeps the T-shaped column 15 pressed down, and the L-shaped card plate 17 fits the protrusion 10 to limit the limit box 9.

[0024] Working principle: When measuring the construction cost, it is necessary to use tools such as a tape measure for auxiliary measurement. When measuring a short distance on a wall or a building, hold the tape measure housing 1 to pull the steel ruler 5, and the steel ruler 5 slides along the through groove 4 opened on the surface of the tape measure housing 1. When the output length of the steel ruler 5 is sufficient, adjust the distance of the sliding buckle 2 installed inside the sliding groove 3. A limiting arc plate 7 is fixedly installed at the rear end of the sliding buckle 2. The lower end of the limiting arc plate 7 is equipped with equidistantly arranged pressure wheels 8. The pressure wheel 8 changes the distance between it and the rotating rod 18 as the sliding buckle 2 moves up and down, and the steel ruler 5 fits on the upper end of the rotating rod 18, so as to clamp and fix the steel ruler 5. When long-distance measurement is required, the tape measure in the prior art often bends due to length problems, resulting in inaccurate measurement. The T-shaped column 15 installed through the fixed platform 14 is pulled, and the lower end of the T-shaped column 15 is fixedly installed with an L-shaped card plate 17 that is engaged with the protrusion 10. Under normal conditions, the part of the T-shaped column 15 located between the L-shaped card plate 17 and the fixed platform 14 is sleeved with a spring 16, and the spring 16 enables the L-shaped card plate 17 to maintain the engagement with the protrusion 10 to limit and fix the limit box 9, and the limit box 9 is slid outward along the limit groove 19 by pulling the T-shaped column 15 upward, wherein a slider 11 corresponding to the limit groove 19 is fixedly installed on the lower surface of the limit box 9, and protrusions 10 are provided at the front and rear ends of the upper surface of the limit box 9, and limit platforms 13 are provided on the upper and lower surfaces of the inner wall of the limit box 9, and a number of equidistantly arranged rubber soft plates 12 are installed on the upper and lower surfaces of the inner wall, and the rubber soft plates 12 are rotatably installed on the inner wall of the limit box 9 to move with the steel ruler 5. By limiting the surroundings of the steel ruler 5, it is prevented from shaking during the storage process to cause unexpected harm to the operator.

[0025] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A scratch-resistant measuring tape for engineering cost measurement, comprising a measuring tape housing (1), characterized in that: A ruler box (6) is installed inside the measuring tape housing (1), and a steel ruler (5) is installed inside the ruler box (6). A sliding groove (3) and a through groove (4) are respectively provided on the outer surface of the measuring tape housing (1). A limiting groove (19) is provided on the lower surface of the inner wall of the through groove (4). A limiting storage mechanism is slidably installed in the limiting groove (19). One end of the steel ruler (5) moves back and forth along the through groove (4). A clamping plate mechanism is provided on the surface of the measuring tape housing (1) at the upper end of the through groove (4).

2. The scratch-resistant measuring tape for engineering cost measurement according to claim 1, characterized in that: A sliding buckle (2) is slidably mounted inside the sliding groove (3), and a limiting arc plate (7) is fixedly mounted on the rear end of the sliding buckle (2).

3. The scratch-resistant measuring tape for engineering cost measurement according to claim 1, characterized in that: The limit storage mechanism comprises a limit box (9) slidably mounted on the upper end of a limit groove (19); a slider (11) is fixedly mounted on the lower surface of the limit box (9); protrusions (10) are fixedly mounted on both ends of the upper surface of the limit box (9); limit platforms (13) are fixedly mounted on the upper and lower ends of both sides of the inner wall of the limit box (9); and a plurality of equidistantly arranged rubber soft plates (12) are mounted on the upper and lower surfaces of the inner wall of the limit box (9).

4. The scratch-resistant measuring tape for engineering cost measurement according to claim 1, characterized in that: The clamping plate mechanism comprises a fixing platform (14) fixedly mounted on the surface of the measuring tape housing (1), a T-shaped column (15) being installed through the fixing platform (14), an L-shaped clamping plate (17) being fixedly mounted on the lower end of the T-shaped column (15), and a spring (16) being provided at a portion of the T-shaped column (15) located between the L-shaped clamping plate (17) and the fixing platform (14).

5. The scratch-resistant measuring tape for engineering cost measurement according to claim 2, characterized in that: The lower end of the limiting arc plate (7) is provided with a plurality of equally spaced pressure wheels (8), which are driven by the sliding buckle (2) to fit with a rotating rod (18) fixedly mounted on the inner wall of the tape measure housing (1) to limit the steel ruler (5).

6. The scratch-resistant measuring tape for engineering cost measurement according to claim 3, characterized in that: The limit platforms (13) on the left and right sides limit the steel ruler (5) to the left and right, and the rubber soft plates (12) on the upper and lower sides limit the steel ruler (5) to the vertical position.

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