Urban rail transit engineering cost measuring scale

Abstract

The utility model discloses a measuring scale for urban rail transit engineering cost, and relates to the technical field of measuring scales, in particular to a measuring scale for urban rail transit engineering cost, which comprises a scale frame provided with a measuring mechanism and used for folding the measuring scale. A fixing mechanism is arranged on the ruler frame and is used for fixing the measuring ruler when the measuring ruler is unfolded and folded, the measuring mechanism comprises a folding assembly, the folding assembly comprises a main ruler body pivoted to the two sides of the ruler frame through rotating shafts, and the other end of the main ruler body is hinged to an auxiliary ruler body through a hinge; the connecting assembly comprises a mounting button slidably mounted in the end, close to the auxiliary ruler body, of the main ruler body, and a pin head is fixed to the end of the mounting button; the problem that in the scheme, the first measuring ruler and the second measuring ruler are fixed through magnets, although the attraction force of the magnets is sufficient to achieve stable connection of the folding ruler, the firmness of the fixing mode is relatively weak when the first measuring ruler and the second measuring ruler are touched by mistake due to external force is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of measuring rulers, in particular to a measuring ruler for the cost of urban rail transit engineering. Background Art

[0002] Project cost refers to the estimated or actual construction costs of a project during the construction period. In construction projects, the building standard is to build according to the drawings and restore them at a certain ratio. Before construction, the building drawings need to be tested. During the test, a measuring ruler is needed to test whether the building data meets the standards of building production.

[0003] After checking the publication (announcement) number: CN219301431U, a kind of engineering cost drawing measuring ruler is disclosed. This technology discloses "a kind of engineering cost drawing measuring ruler, which relates to the field of measuring ruler technology. The engineering cost drawing measuring ruler comprises a first measuring ruler, the lower surface of the first measuring ruler is movably connected to the second measuring ruler, the side of the first measuring ruler is movably connected, the inner wall of the first measuring ruler is movably connected to the extended measuring ruler, the side of the first measuring ruler is movably installed with a button device, and the side of the second measuring ruler is movably connected to the connecting column" and other technical solutions, which have "the first measuring ruler and the second measuring ruler are rotated and unfolded around the connecting column, so that the first measuring ruler and the second measuring ruler are in the same straight line, and after pressing the button device, the extended measuring ruler can be pulled out from the first measuring ruler and spliced ​​with the groove on the side of the second measuring ruler to increase the length of the measuring ruler" and other technical effects;

[0004] The first measuring ruler and the second measuring ruler in the above solution are fixed by magnets. Although the suction force of the magnets is sufficient to achieve a stable connection of the folding ruler, the firmness of this fixing method is relatively weak when it is accidentally touched by external force. In addition, when the folding ruler is used to measure certain devices that are sensitive to magnetic fields, the presence of magnets may have an adverse effect on these devices, thereby interfering with the accuracy or safety of the measurement. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a measuring ruler for the cost of urban rail transit engineering, which has the characteristics of being convenient, fast and firm in fixing when the measuring ruler is unfolded or folded.

[0006] To achieve the above purpose, the utility model is implemented by the following technical solutions: a measuring ruler for urban rail transit engineering cost, including a ruler frame, a measuring mechanism is provided on the ruler frame and is used to fold the measuring ruler, a fixing mechanism is provided on the ruler frame and is used to fix the measuring ruler when it is unfolded and folded, and the measuring mechanism includes:

[0007] The folding assembly comprises a main ruler body on both sides of the ruler frame, which is pivotally connected by a rotating shaft, and a secondary ruler body is hingedly connected to the other end of the main ruler body by a hinge;

[0008] The connecting assembly comprises a mounting button which is slidably mounted inside one end of the main ruler body close to the auxiliary ruler body, a pin head is fixed at the end of the mounting button, a spring is mounted inside the mounting button, and a pin hole is opened at one end of the auxiliary ruler body close to the main ruler body;

[0009] Auxiliary component, installed on the main ruler and used for thickness measurement.

[0010] Preferably, the fixing mechanism comprises a latch mounted on the ruler frame, a rope is fixed to the latch, and a binding strap is fixed to the other end of the rope.

[0011] Preferably, the folding assembly further comprises a groove formed on the top of the secondary ruler body close to one end of the main ruler body.

[0012] Preferably, the folding assembly further comprises a first plug hole and a second plug hole which are opened at one end of the main ruler body away from the auxiliary ruler body.

[0013] Preferably, the folding assembly further comprises a protractor arranged at one end of the secondary ruler body away from the main ruler body.

[0014] Preferably, the auxiliary component includes a first measuring claw fixed on the top of the main ruler body close to one end of the auxiliary ruler body, a slide groove opened on the top of the main ruler body, a second measuring claw slidably installed inside the slide groove, and an arrow is fixed on the lower end of the front surface of the second measuring claw.

[0015] Beneficial Effects

[0016] The utility model provides a measuring ruler for urban rail transit engineering cost. Compared with the prior art, it has the following beneficial effects:

[0017] (1) Press and hold the installation button to drive the pin head, and flip the secondary ruler body through the hinge to be level with the main ruler body, so that the pin head is stuck in the pin hole. Then release the installation button, and push the installation button through the spring rebound pressure to drive the pin head to buckle the pin hole, thereby fixing the unfolded main ruler body and secondary ruler body.

[0018] (2) When the main ruler bodies on both sides are unfolded, they can be installed on the rotating shaft and inserted into the first insertion hole through the latch; when the main ruler bodies on both sides are folded, they can be installed on the rotating shaft and inserted into the second insertion hole through the latch; so that the main ruler bodies can be fixed when unfolded or folded; so that the measuring ruler can be fixed conveniently, quickly and firmly when unfolded or folded. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model when it is unfolded;

[0020] Figure 2 It is a schematic diagram of the structure of the utility model when folded;

[0021] Figure 3 It is a cross-sectional structural schematic diagram of the connection component in the utility model;

[0022] Figure 4 It is a schematic diagram of the structure of the main ruler body and the auxiliary ruler body of the utility model when they are unfolded;

[0023] Figure 5 It is a structural schematic diagram of the fixing mechanism in the utility model.

[0024] In the figure: 1. ruler frame; 2. measuring mechanism; 21. folding component; 211. rotating shaft; 212. main ruler body; 213. hinge; 214. auxiliary ruler body; 215. first socket; 216. second socket; 217. protractor; 22. connecting component; 221. mounting button; 222. pin head; 223. spring; 224. pin hole; 225. groove; 23. auxiliary component; 231. first measuring claw; 232. slide groove; 233. second measuring claw; 234. arrow; 3. fixing mechanism; 31. latch; 32. rope; 33. strap. DETAILED DESCRIPTION

[0025] 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. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-5 The utility model provides a technical solution for a measuring ruler for urban rail transit engineering cost: a measuring ruler for urban rail transit engineering cost, comprising a ruler frame 1, a measuring mechanism 2 is arranged on the ruler frame 1 and is used for folding the measuring ruler, a fixing mechanism 3 is arranged on the ruler frame 1 and is used for fixing the measuring ruler when it is unfolded and folded, and the measuring mechanism 2 comprises:

[0027] The folding assembly 21 includes a main ruler body 212 pivotally connected to the ruler frame 1 on both sides by a rotating shaft 211, and a secondary ruler body 214 is hingedly connected to the other end of the main ruler body 212 by a hinge 213;

[0028] The connecting assembly 22 includes a mounting button 221 slidably mounted inside one end of the main ruler body 212 close to the auxiliary ruler body 214, a pin head 222 is fixed to the end of the mounting button 221, a spring 223 is installed inside the mounting button 221, and a pin hole 224 is opened at one end of the auxiliary ruler body 214 close to the main ruler body 212;

[0029] The auxiliary component 23 is disposed on the main ruler 212 and is used for thickness measurement.

[0030] In this embodiment, the pin head 222 is driven by pressing the installation button 221, and the secondary ruler body 214 is flipped to be level with the main ruler body 212 through the hinge 213, so that the pin head 222 is inserted into the pin hole 224, and then the pressed installation button 221 is released, and the pressure of the spring 223 is used to push the installation button 221 to drive the pin head 222 to buckle the pin hole 224, so that the unfolded main ruler body 212 and the secondary ruler body 214 are fixed.

[0031] Specifically, the fixing mechanism 3 includes a latch 31 installed on the ruler frame 1 , a rope 32 is fixed to the latch 31 , and a binding belt 33 is fixed to the other end of the rope 32 .

[0032] In this embodiment, when the measuring ruler is folded as a whole, the straps 33 can be put on the main ruler body 212 and the auxiliary ruler body 214 on both sides, and the main ruler body 212 and the auxiliary ruler body 214 on both sides can be fixed by the elasticity of the straps 33 themselves to prevent the measuring ruler from being easily unfolded during carrying after being folded.

[0033] Specifically, the folding assembly 21 further includes a groove 225 formed at the top of the secondary ruler body 214 near one end of the primary ruler body 212 .

[0034] In this embodiment, when the main body 212 and the auxiliary body 214 are folded together by the hinge 213 , the exposed portion of the installation button 221 is just inserted into the groove 225 , thereby avoiding interference between the main body 212 and the auxiliary body 214 when they are folded together.

[0035] Specifically, the folding assembly 21 further includes a first plug hole 215 and a second plug hole 216 which are opened at one end of the main ruler 212 away from the auxiliary ruler 214 .

[0036] In this embodiment, when the main ruler bodies 212 on both sides are unfolded, they can be installed on the rotating shaft 211 and inserted into the first insertion hole 215 through the latch 31. When the main ruler bodies 212 on both sides are folded, they can be installed on the rotating shaft 211 and inserted into the second insertion hole 216 through the latch 31, so that the main ruler bodies 212 can be fixed when unfolded or folded.

[0037] Specifically, the folding assembly 21 further includes a protractor 217 disposed at one end of the secondary ruler body 214 away from the main ruler body 212 .

[0038] In this embodiment, the angle measurement can be performed by using the protractor 217 .

[0039] Specifically, the auxiliary component 23 includes a first measuring claw 231 fixed on the top of the main ruler body 212 near the auxiliary ruler body 214, a slide groove 232 opened on the top of the main ruler body 212, a second measuring claw 233 slidably installed inside the slide groove 232, and an arrow 234 is fixed on the lower end of the front surface of the second measuring claw 233.

[0040] In this embodiment, the width can be measured by sliding the second measuring claw 233 and cooperating with the first measuring claw 231, and the position indicated by the arrow 234 is the current scale value.

[0041] The working principle and use process of the utility model are as follows: first, when it is needed, the fixing mechanism 3 is removed from the ruler frame 1, and the main ruler bodies 212 on both sides are rotated to a horizontal position, and then the latch 31 is installed on the rotating shaft 211 and inserted into the second insertion hole 216, so as to fix the main ruler bodies 212 after the two sides are unfolded;

[0042] Secondly, by pressing the installation button 221 to drive the pin head 222, the secondary ruler body 214 is flipped through the hinge 213 to be level with the main ruler body 212, so that the pin head 222 is inserted into the pin hole 224, and then the pressed installation button 221 is released, and the pressure of the spring 223 is used to push the installation button 221 to drive the pin head 222 to buckle the pin hole 224, so that the unfolded main ruler body 212 and the secondary ruler body 214 are fixed.

[0043] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations 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.

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A measuring ruler for measuring the cost of urban rail transit engineering, comprising a ruler frame (1), characterized in that: The ruler frame (1) is provided with a measuring mechanism (2) for measuring the folding of the ruler, and the ruler frame (1) is provided with a fixing mechanism (3) for fixing the ruler when it is unfolded and folded, and the measuring mechanism (2) comprises: The folding assembly (21) comprises a main ruler body (212) pivotally connected to the ruler frame (1) on both sides via a rotating shaft (211), and a secondary ruler body (214) is hingedly connected to the other end of the main ruler body (212) via a hinge (213); The connecting assembly (22) comprises a mounting button (221) slidably mounted inside one end of the main ruler body (212) close to the auxiliary ruler body (214), a pin head (222) being fixed to the end of the mounting button (221), a spring (223) being mounted inside the mounting button (221), and a pin hole (224) being provided at one end of the auxiliary ruler body (214) close to the main ruler body (212); The auxiliary component (23) is arranged on the main ruler (212) and is used for thickness measurement.

2. The urban rail transit engineering cost measuring ruler according to claim 1, characterized in that: The fixing mechanism (3) comprises a latch (31) mounted on the ruler frame (1), a rope (32) being fixed on the latch (31), and a binding belt (33) being fixed on the other end of the rope (32).

3. The urban rail transit engineering cost measuring ruler according to claim 1, characterized in that: The folding assembly (21) further comprises a groove (225) formed at the top of the secondary ruler body (214) close to one end of the primary ruler body (212).

4. The urban rail transit engineering cost measuring ruler according to claim 1, characterized in that: The folding assembly (21) further comprises a first plug hole (215) and a second plug hole (216) which are opened at one end of the main ruler body (212) away from the auxiliary ruler body (214).

5. The urban rail transit engineering cost measuring ruler according to claim 1, characterized in that: The folding assembly (21) further comprises a protractor (217) arranged at one end of the secondary ruler body (214) away from the main ruler body (212).

6. The urban rail transit engineering cost measuring ruler according to claim 1, characterized in that: The auxiliary component (23) comprises a first measuring claw (231) fixed to the top of one end of the main ruler body (212) close to the auxiliary ruler body (214), a slide groove (232) opened at the top of the main ruler body (212), a second measuring claw (233) slidably mounted inside the slide groove (232), and an arrow (234) fixed to the lower end of the front surface of the second measuring claw (233).

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