Engineering cost measuring scale

Abstract

The utility model discloses an engineering cost measuring scale, and relates to the field of engineering cost measuring equipment. The ruler comprises a first ruler body, a second ruler body is arranged in the first ruler body, a third ruler body is arranged in the second ruler body, and a sliding mechanism is arranged, so that a card can be pressed by two hands to enable one end of the card to slide a gear in the using process; at the moment, the second ruler and the third ruler can be rapidly and effectively drawn out, then the clamping piece is reset by the torsion rotating shaft when the clamping piece is loosened, the purpose of rapid clamping is achieved, and through the arrangement, the service life can be effectively prolonged; in addition, due to the design of the sliding mechanism, the telemeter rod can stretch out and draw back more smoothly and is easy to operate, measuring personnel can adjust the length of the telemeter rod more easily, and working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of engineering cost measurement equipment, in particular to an engineering cost measurement ruler. Background Art

[0002] The engineering cost measurement ruler is a tool specially used for engineering measurement. It is used for precise measurement in various engineering projects such as construction projects, civil engineering projects, and garden landscape projects. There are many types of engineering cost measurement rulers, and the more commonly used one is the tower ruler, because the tower ruler is a high-precision measuring tool, usually used with a level for elevation measurement. Due to its design features, the tower ruler has very fine scales in the vertical direction and can provide accurate readings, thereby ensuring the accuracy of the measurement results.

[0003] The tower scale used in the existing engineering cost measurement process is used very frequently. Since the tower scale is composed of a main scale, a sliding scale and a joint, the joint is used to connect the main scale and the sliding scale. During the measurement work, the main scale and the sliding scale need to be frequently extended and moved. This frequent relative movement will cause wear on the joint part, especially on the contact surface and connection part of the joint. Therefore, when designing the tower scale used for engineering cost measurement, it is necessary to provide a novel sliding mechanism to solve the above problems. Utility Model Content

[0004] Based on this, the purpose of the utility model is to provide a construction cost measurement ruler to solve the technical problem that the construction cost measurement ruler has a short service life when it is frequently used.

[0005] To achieve the above object, the utility model provides the following technical solution: an engineering cost measurement ruler, comprising a first ruler, a second ruler is arranged inside the first ruler, a third ruler is arranged inside the second ruler, and a first mounting seat and a second mounting seat are respectively arranged above the outer sides of the first ruler and the second ruler;

[0006] Sliding mechanisms are provided on both sides of the first mounting seat and the second mounting seat, and the sliding mechanisms include mounting grooves, and a sliding gear is rotatably connected inside the mounting groove, and a plurality of toothed edges are provided on the sliding gear. Tooth grooves are provided on both sides of the second ruler and the third ruler, and a rack is provided inside the tooth groove, and the rack is meshed with the sliding gear.

[0007] By adopting the above technical solution and the above configuration, the service life can be effectively extended because the meshing of the rack and the gear is more wear-resistant and can reduce wear and damage during long-term use.

[0008] Furthermore, a torsion shaft is provided on one side of the sliding gear, a card is provided on the torsion shaft, and the card is rotatably connected to the mounting groove through the torsion shaft, one end of the card is meshed with the sliding gear, and two groups of sliding mechanisms are provided, and the two groups of sliding mechanisms are mirror-imaged along the central axis of the first ruler.

[0009] By adopting the above technical solution, the service life can be effectively extended, because the meshing of the rack and the gear is more wear-resistant, which can reduce wear and damage during long-term use. In addition, the use of the sliding mechanism can provide more stable and accurate positioning, thereby ensuring the accuracy of the tower ruler during the extension and retraction process, which is particularly important for projects that require high-precision measurement. Since one end of the card is meshed with the sliding gear, the card can effectively limit the sliding gear.

[0010] Furthermore, the inner walls of the first mounting seat and the second mounting seat are both provided with sliding rods, and the sliding rods are slidably connected to the second ruler and the third ruler respectively.

[0011] By adopting the above technical solution, the sliding rod can effectively reduce the friction between the second ruler and the third ruler and the first mounting seat and the second mounting seat during the extension and retraction process, thereby reducing the wear of the second ruler and the third ruler.

[0012] Furthermore, two racks are provided, and the two racks are mirror-imaged along the width center line of the first ruler.

[0013] By adopting the above technical solution, the rack helps to maintain the balance of the tower ruler when it is in use, especially when fine adjustment is required or it is used at a high place.

[0014] Furthermore, outer surfaces of the first ruler, the second ruler and the third ruler are all provided with scale marks, and there are multiple scale marks, and the distances between the multiple scale marks are the same.

[0015] By adopting the above technical solution, a standardized measurement unit is provided through a ruler, making the measurement result more accurate and reliable. This standardized design also facilitates communication and cooperation between different operators.

[0016] Furthermore, a top cover is provided on the top of the third ruler, and the top cover, the first mounting seat and the second mounting seat are all made of engineering plastics.

[0017] By adopting the above technical solution, the setting of the top cover can effectively protect the top of the third ruler from damage and extend its service life. After the measurement is completed and stored, the top cover can prevent dust, moisture or other impurities from entering the inside of the ruler, thereby ensuring the accuracy of the measurement.

[0018] Furthermore, the first ruler is nested with the second ruler, and the second ruler is nested with the third ruler.

[0019] By adopting the above technical solution, the first ruler, the second ruler and the third ruler can be extended and retracted to meet the measurement requirements of different heights.

[0020] Furthermore, the first ruler, the second ruler and the third ruler are all arranged in a long strip structure, and the first ruler, the second ruler and the third ruler are of equal length.

[0021] By adopting the above technical solution, the first ruler, the second ruler and the third ruler can provide a continuous and uninterrupted measuring range when they are telescopically combined, and the long strip structure makes the ruler more stable during measurement, reduces shaking and deviation, and improves the accuracy of measurement.

[0022] Furthermore, the width of the first ruler is greater than that of the second ruler, and the width of the second ruler is greater than that of the third ruler.

[0023] By adopting the above technical solution, the operators of the first ruler, the second ruler and the third ruler can select a suitable set of rulers for measurement as needed, thereby saving time and improving work efficiency.

[0024] Furthermore, the first ruler, the second ruler and the third ruler are made of aluminum alloy.

[0025] By adopting the above technical solution, the aluminum alloy has a lighter weight, which makes the first ruler, the second ruler and the third ruler easy to carry and operate. For measurement work that requires frequent movement and setting, the lightweight aluminum alloy tower ruler can greatly reduce the burden on operators and improve work efficiency.

[0026] In summary, the utility model mainly has the following beneficial effects:

[0027] 1. The utility model sets a sliding mechanism. During use, you can first press the card with both hands to make one end of the card slide the gear. At this time, the second ruler and the third ruler can be quickly and effectively drawn out. After that, when you loosen the card, the card will be reset by the torsion shaft to achieve the purpose of quick engagement. Through the above arrangement, the service life can be effectively extended, because the meshing of the rack and the gear is more wear-resistant, which can reduce the wear and damage in long-term use. In addition, the use of the sliding mechanism can provide more stable and accurate positioning, thereby ensuring the accuracy of the tower ruler during the extension and retraction process, which is particularly important for projects requiring high-precision measurement. In addition, the design of the sliding mechanism makes the extension and retraction of the tower ruler smoother and easier to operate, and the measurement personnel can more easily adjust the length of the tower ruler, thereby improving work efficiency.

[0028] 2. The utility model sets a card, and since the card can be effectively engaged with the sliding gear, the engagement through the card can provide the benefits of preventing reverse sliding, enhancing stability, extending service life, easy operation and strong adaptability. This design improvement helps to improve the efficiency and accuracy of engineering measurement, reduce the cost of maintenance and replacement, and thus better meet the needs of engineering projects. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0030] Figure 2 It is a rear-view stereoscopic structural schematic diagram of the utility model;

[0031] Figure 3 It is a schematic diagram of the front cross-sectional three-dimensional structure of the utility model;

[0032] Figure 4 For this utility model Figure 3 The enlarged structural diagram at A in the middle;

[0033] Figure 5 It is a schematic diagram of the top cover structure of the utility model.

[0034] In the figure: 1. first ruler; 2. ruler mark; 3. first mounting seat; 4. second ruler; 5. third ruler; 6. second mounting seat; 7. top cover; 8. sliding mechanism; 801. mounting groove; 802. sliding gear; 803. tooth blade; 804. tooth groove; 805. rack; 806. torque shaft; 807. card, 9 sliding rod. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0036] The following describes an embodiment of the utility model based on its overall structure.

[0037] Embodiment one:

[0038] A construction cost measurement ruler, such as Figure 1-Figure 4 As shown, it comprises a first ruler 1, a second ruler 4 is arranged inside the first ruler 1, a third ruler 5 is arranged inside the second ruler 4, and a first mounting seat 3 and a second mounting seat 6 are arranged above the outer sides of the first ruler 1 and the second ruler 4 respectively;

[0039] Sliding mechanisms 8 are provided on both sides of the first mounting seat 3 and the second mounting seat 6. The sliding mechanism 8 includes a mounting groove 801. The interior of the mounting groove 801 is rotatably connected to a sliding gear 802. The sliding gear 802 is provided with multiple tooth blades 803. Tooth grooves 804 are provided on both sides of the second ruler 4 and the third ruler 5. Racks 805 are provided inside the tooth grooves 804. The racks 805 are meshed with the sliding gear 802. Through the above arrangement, the service life can be effectively extended because the meshing of the racks and gears is more wear-resistant, which can reduce wear and damage during long-term use. Moreover, the use of the sliding mechanism 8 can provide more stable and accurate positioning, thereby ensuring the accuracy of the tower ruler during the extension and retraction process, which is particularly important for projects requiring high-precision measurement. In addition, the design of the sliding mechanism 8 makes the extension and retraction of the tower ruler smoother and easier to operate, and the surveying personnel can more easily adjust the length of the tower ruler, thereby improving work efficiency.

[0040] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 A torque shaft 806 is provided on one side of the sliding gear 802, and a card 807 is provided on the torque shaft 806, and the card 807 is rotatably connected to the mounting groove 801 through the torque shaft 806, which can effectively extend the service life, because the meshing of the rack and the gear is more wear-resistant, which can reduce the wear and damage in long-term use, and the use of the sliding mechanism 8 can provide more stable and accurate positioning, thereby ensuring the accuracy of the tower ruler during the extension and retraction process, which is particularly important for projects that require high-precision measurement. In addition, the design of the sliding mechanism 8 makes the extension and retraction of the tower ruler smoother and easier to operate, and the surveyor can more easily adjust the length of the tower ruler, thereby improving work efficiency.

[0041] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 One end of the card 807 is meshed with the sliding gear 802, and two groups of sliding mechanisms 8 are provided. The two groups of sliding mechanisms 8 are mirror-imaged along the central axis of the first ruler 1, so the card 807 can effectively limit the sliding gear 802, and the two groups of sliding mechanisms 8 can smoothly ensure that the second ruler 4 and the third ruler 5 can slide quickly. There are two racks 805, and the two racks 805 are mirror-imaged along the width center line of the first ruler 1, so the racks 805 help to maintain the balance of the tower ruler when in use, especially when fine adjustment is required or when it is used at a high place, and the racks 805 are distributed on both sides of the first ruler 1, the second ruler 4 and the third ruler 5. This design disperses the stress and wear generated during use, thereby possibly extending the service life of the tower ruler.

[0042] Embodiment 2:

[0043] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 The inner walls of the first mounting seat 3 and the second mounting seat 6 are both provided with sliding rods 9, and the sliding rods 9 are respectively slidably connected to the second ruler 4 and the third ruler 5, so that the first mounting seat 3 and the second mounting seat 6 can effectively ensure that the first mounting seat 3 and the second mounting seat 6 can effectively slide downward under gravity.

[0044] See also Figure 1 , Figure 2 , Figure 3 The outer surfaces of the first ruler 1, the second ruler 4 and the third ruler 5 are all provided with ruler marks 2, and there are multiple ruler marks 2, and the distances between the multiple ruler marks 2 are the same. The ruler marks 2 provide standardized measurement units, making the measurement results more accurate and reliable. This standardized design also facilitates communication and cooperation between different operators, and multiple ruler marks 2 can cover a wider measurement range, which is very important for engineering projects that need to measure different heights and lengths, and can meet diverse measurement needs.

[0045] See also Figure 1 , Figure 2 , Figure 3 A top cover 7 is provided on the top of the third ruler 5. The top cover 7, the first mounting seat 3 and the second mounting seat 6 are all made of engineering plastics. The provision of the top cover 7 can effectively protect the top of the third ruler 5 from damage and extend its service life. During the measurement process, the top cover 7 can prevent dust, moisture or other impurities from entering the interior of the ruler, thereby ensuring the accuracy of the measurement. Moreover, engineering plastic is a lightweight material. Using it to manufacture the top cover 7, the first mounting seat 3 and the second mounting seat 6 can reduce the overall weight of the ruler. This is particularly important for measurement work that requires frequent carrying and movement of the ruler, and can reduce the burden on operators.

[0046] See also Figure 1 , Figure 2 , Figure 3 The first ruler 1 is connected to the second ruler 4, and the second ruler 4 is connected to the third ruler 5. Therefore, the first ruler 1, the second ruler 4 and the third ruler 5 can be extended and retracted to meet the measurement needs of different heights. Moreover, the socket design allows the tower ruler to be retracted to a smaller size when not in use, which is easy to carry and store. This is especially important for work that requires frequent movement or measurement in different locations.

[0047] See also Figure 1 , Figure 2 , Figure 3The first ruler 1, the second ruler 4 and the third ruler 5 are all arranged in a long strip structure. The first ruler 1, the second ruler 4 and the third ruler 5 are of equal length and can provide a continuous and uninterrupted measuring range when telescopically combined. Moreover, the long strip structure makes the ruler more stable during measurement, reduces shaking and deviation, and improves the accuracy of measurement.

[0048] See also Figure 1 , Figure 2 , Figure 3 The width of the first ruler 1 is greater than that of the second ruler 4, and the width of the second ruler 4 is greater than that of the third ruler 5. Therefore, the operator who cooperates with the first ruler 1, the second ruler 4 and the third ruler 5 can select a suitable set of rulers for measurement as needed, thereby saving time and improving work efficiency. In addition, the multi-layer design makes the tower ruler more flexible in carrying and storage.

[0049] See also Figure 1 , Figure 2 , Figure 3 The first ruler 1, the second ruler 4 and the third ruler 5 are made of aluminum alloy. Aluminum alloy has a light weight, which makes the first ruler 1, the second ruler 4 and the third ruler 5 easy to carry and operate. For measurement work that requires frequent movement and setting, the lightweight aluminum alloy tower ruler can greatly reduce the burden on operators and improve work efficiency. Moreover, the aluminum alloy material has good corrosion resistance and can resist erosion and damage in harsh environments. This is especially important for tower rulers that are often used outdoors, because it can ensure that the tower ruler maintains stable performance and accurate measurement results during long-term use.

[0050] The implementation principle of the utility model is as follows: first, the lengths of the first ruler 1, the second ruler 4 and the third ruler 5 need to be adjusted according to the measured objects. At this time, the card 807 can be pressed with both hands to cause one end of the card to slide the gear 802. At this time, the second ruler 4 and the third ruler 5 can be quickly and effectively pulled out. After that, when the hand of the card 807 is loosened, the card 807 will be reset by the torque shaft 806 to achieve the purpose of rapid engagement. At this time, the objects can be effectively measured for cost evaluation. When they are recycled afterwards, the card 807 is pressed, and the first ruler 1, the second ruler 4 and the third ruler 5 will slide back quickly by their own gravity, achieving the purpose of rapid recycling.

[0051] Parts not involved in the present invention are the same as the prior art or can be implemented by using the prior art, and will not be described in detail here.

[0052] Although an embodiment of the utility model has been shown and described, this specific embodiment is only an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contribution as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. A construction cost measurement ruler, characterized in that: The invention comprises a first ruler (1), a second ruler (4) is arranged inside the first ruler (1), a third ruler (5) is arranged inside the second ruler (4), and a first mounting seat (3) and a second mounting seat (6) are respectively arranged above the outer sides of the first ruler (1) and the second ruler (4); Sliding mechanisms (8) are provided on both sides of the first mounting seat (3) and the second mounting seat (6), and the sliding mechanisms (8) include mounting grooves (801), the interior of the mounting grooves (801) is rotatably connected to a sliding gear (802), and the sliding gear (802) is provided with a plurality of toothed edges (803); tooth grooves (804) are provided on both sides of the second ruler (4) and the third ruler (5), and racks (805) are provided inside the tooth grooves (804), and the racks (805) are meshed with the sliding gear (802).

2. The engineering cost measuring ruler according to claim 1, characterized in that: A torsion shaft (806) is disposed on one side of the sliding gear (802), a card (807) is disposed on the torsion shaft (806), and the card (807) is rotatably connected to the mounting slot (801) via the torsion shaft (806).

3. The engineering cost measuring ruler according to claim 2, characterized in that: One end of the card (807) is meshed with the sliding gear (802), and the sliding mechanism (8) is provided with two groups, and the two groups of the sliding mechanism (8) are mirror-imaged along the central axis of the first straight ruler (1). The racks (805) are provided with two, and the two racks (805) are mirror-imaged along the width center line of the first straight ruler (1).

4. The engineering cost measuring ruler according to claim 1, characterized in that: The inner walls of the first mounting seat (3) and the second mounting seat (6) are both provided with sliding rods (9), and the sliding rods (9) are respectively slidably connected to the second ruler (4) and the third ruler (5).

5. The engineering cost measuring ruler according to claim 1, characterized in that: The outer surfaces of the first ruler (1), the second ruler (4) and the third ruler (5) are all provided with scale marks (2), and there are a plurality of scale marks (2), and the distances between the plurality of scale marks (2) are the same.

6. The engineering cost measuring ruler according to claim 1, characterized in that: A top cover (7) is provided on the top of the third ruler (5); the top cover (7), the first mounting seat (3) and the second mounting seat (6) are all made of engineering plastics.

7. The engineering cost measuring ruler according to claim 1, characterized in that: The first ruler (1) is sleeved with the second ruler (4), and the second ruler (4) is sleeved with the third ruler (5).

8. The engineering cost measuring ruler according to claim 1, characterized in that: The first ruler (1), the second ruler (4) and the third ruler (5) are all arranged in a long strip-shaped structure, and the first ruler (1), the second ruler (4) and the third ruler (5) are of the same length.

9. The engineering cost measuring ruler according to claim 1, characterized in that: The width of the first ruler (1) is greater than that of the second ruler (4), and the width of the second ruler (4) is greater than that of the third ruler (5).

10. The engineering cost measuring ruler according to claim 1, characterized in that: The first ruler (1), the second ruler (4) and the third ruler (5) are made of aluminum alloy.

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