A foldable tale device

Abstract

The utility model relates to the technical fields of ruler device, disclose a kind of foldable ruler device, including first ruler body and second ruler body, further include rotating mechanism and positioning mechanism, the side surface of first ruler body is fixedly installed with fixed block by fixed axle, the surface of fixed block is rotatably installed by rotating ring to second ruler body, the rotating mechanism includes the rotating groove of being opened in the surface of fixed block, rotating block is slidably installed in the inside of rotating groove. This one kind of foldable ruler device, angle can be quickly adjusted and locked by simple sliding operation, greatly improves the detection efficiency, the linkage cooperation of spring and clamping block, the stability and reliability of angle locking are ensured, the error caused by accidental touch in the measurement process is avoided, so as to ensure the accuracy of perpendicularity detection result.

Description

Technical Field

[0001] This utility model relates to the technical field of ruler devices, and more particularly to a foldable ruler device. Background Technology

[0002] A straightedge is a precision tool used to measure and inspect the flatness, perpendicularity, or straightness of an object. It typically consists of a ruler, a reference surface, and an indicating device. By placing the ruler against the surface being measured, it displays the deviation value using an indicator or measuring head, thus determining whether the object meets the specified geometric accuracy requirements. This device is widely used in construction, machinery manufacturing, furniture production, and other fields, effectively ensuring product processing quality and installation accuracy. It is an indispensable auxiliary device in engineering measurement and quality control.

[0003] Existing technology, such as application number CN202223007479.0, provides a folding ruler. This folding ruler belongs to the field of engineering project measuring instrument technology and includes: a ruler body, a connecting component, and a limiting component. The connecting component on this folding ruler allows for convenient unfolding and folding operations, while the limiting component limits and supports the ruler when unfolded. This makes the folding ruler easy to carry and store while also facilitating better measurement work. The inclusion of a measurement unit facilitates viewing and operation by measurement personnel, improving the efficiency of ruler measurement.

[0004] However, when using the aforementioned straightedge, the inspector often needs to hold it firmly against the measuring surface and take readings using the built-in level or angle gauge. This requires one hand to support the straightedge for stability while the other hand operates and records the data. This process makes it difficult to effectively lock the precise angle between the straightedge and the vertical reference surface. Even slight shaking or displacement of the hand can cause deviations in the measurement results, affecting the accuracy and reliability of the inspection. This inconvenience and error risk caused by the inability to fix the angle are particularly pronounced in scenarios involving high-altitude operations or long-term continuous inspections, reducing work efficiency and increasing the difficulty of quality assessment. Utility Model Content

[0005] In view of the problems that existing straightedges lack angle locking function when testing verticality, resulting in inconvenient operation and measurement results that are easily affected by human factors and thus produce errors, this utility model is proposed.

[0006] Therefore, the purpose of this utility model is to provide a foldable ruler device, which aims to solve the problem that existing rulers lack an angle locking function when detecting verticality, resulting in inconvenient operation and measurement results that are easily affected by human factors and thus produce errors.

[0007] To solve the above technical problems, this utility model provides the following technical solution: a foldable ruler device, including a first ruler body and a second ruler body, and also including a rotating mechanism and a positioning mechanism. A fixing block is fixedly installed on one side surface of the first ruler body through a fixing shaft. The second ruler body is rotatably installed on the surface of the fixing block through a rotating ring. The rotating mechanism includes a rotating groove formed on the surface of the fixing block, and a rotating block is slidably installed inside the rotating groove. The positioning mechanism includes a slot formed on the side surface of the fixed block, a fixed plate fixedly installed on the side surface of the second ruler, a sliding rod fixedly installed on the inner side of the fixed plate, a sliding block slidably installed on the surface of the sliding rod, and a locking block fixedly installed on one side of the sliding block.

[0008] In a preferred embodiment of the foldable ruler device of this utility model, the rotating ring is fixedly installed on one side of the second ruler body, and the sliding block is fixedly installed on the side surface of the rotating ring.

[0009] In a preferred embodiment of the foldable ruler device of this utility model, a rotating handle is fixedly installed on the side surface of the rotating block.

[0010] In a preferred embodiment of the foldable ruler device of this utility model, a first spring is installed between one side surface of the sliding block and the inner side surface of the fixing plate.

[0011] In a preferred embodiment of the foldable ruler device of this utility model, a second spring is installed between the other side surface of the sliding block and the inner side surface of the fixing plate.

[0012] In a preferred embodiment of the foldable ruler device of this utility model, an angle gauge is fixedly installed on the rear surface of the first ruler body.

[0013] In a preferred embodiment of the foldable ruler device of this utility model, a sliding handle is fixedly installed on the upper surface of the sliding block.

[0014] In a preferred embodiment of the foldable ruler device of this utility model, the outer surface of the positioning mechanism is provided with a shell, and the shell is fixedly installed on the surface of the second ruler body.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects: 1. This utility model, through its positioning mechanism, allows for the detection of the verticality of a building. Sliding the sliding handle to one side stretches the first spring and compresses the second spring, causing the locking block to slide out of the slot on the surface of the fixed block. The second ruler then rotates around the fixed axis, resting against the side surface of the building. Releasing the sliding handle allows the locking block to re-engage in the slot via the restoring force of the first and second springs, thus locking the rotation angle of the second ruler. This simple sliding operation allows for quick adjustment and locking of the angle, greatly improving detection efficiency. The linkage between the springs and the locking block ensures the stability and reliability of the angle locking, avoiding errors caused by accidental contact during measurement, thereby guaranteeing the accuracy of the verticality detection results.

[0016] 2. This utility model, through its rotating mechanism, allows the rotating ring of the second ruler to drive the rotating block to rotate within the rotating groove of the fixed block when the second ruler is rotated. The angle formed by the first and second rulers can be directly observed through the angle gauge installed on the back of the fixed block and the rear of the first ruler. This enables real-time and accurate reading of the measured angle. The operator does not need additional tools or complex calculations; the precise angle value can be directly observed while the second ruler is rotated, greatly simplifying the operation process and improving work efficiency and the accuracy of measurement data. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a foldable ruler device according to the present invention. Figure 2 This is a schematic diagram of the structure of the first ruler body of a foldable ruler device according to this utility model; Figure 3 This is a schematic diagram of the structure of the second ruler body of a foldable ruler device according to this utility model; Figure 4 This utility model relates to a foldable ruler device. Figure 3 Enlarged view of point A in the middle; Figure 5 This is a schematic diagram of the rear side of a foldable ruler device according to the present invention.

[0018] Explanation of reference numerals in the attached figures: 1. First ruler body; 2. Second ruler body; 3. Rotation mechanism; 301. Fixed shaft; 302. Fixed block; 303. Rotating ring; 304. Rotating groove; 305. Rotating block; 306. Rotating handle; 4. Positioning mechanism; 401. Slot; 402. Outer shell; 403. Fixed plate; 404. Sliding rod; 405. Sliding block; 406. First spring; 407. Second spring; 408. Sliding handle; 409. Slot; 5. Angle gauge. Detailed Implementation

[0019] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Example 1

[0020] Reference Figures 1-4 The first embodiment of this utility model provides a foldable ruler device. This foldable ruler device includes a first ruler body 1 and a second ruler body 2, as well as a rotating mechanism 3 and a positioning mechanism 4. A fixing block 302 is fixedly installed on one side surface of the first ruler body 1 through a fixing shaft 301. The second ruler body 2 is rotatably installed on the surface of the fixing block 302 through a rotating ring 303. The rotating mechanism 3 includes a rotating groove 304 formed on the surface of the fixing block 302, and a rotating block 305 is slidably installed inside the rotating groove 304.

[0021] The rotating ring 303 is fixedly installed on one side of the second ruler 2, and the sliding block 405 is fixedly installed on the side surface of the rotating ring 303.

[0022] A rotating handle 306 is fixedly mounted on the side surface of the rotating block 305.

[0023] During use, the operator holds the rotating handle 306 on the second ruler 2 and applies rotational force. This force is transmitted through the rotating block 305 to the rotating ring 303 fixed to the second ruler 2. The rotating ring 303 then rotates smoothly around the fixed shaft 301. During this process, the rotating block 305 is restricted to sliding within the rotating groove 304 of the fixed block 302, providing precise guidance and support for the rotation of the second ruler 2, ensuring the stability and smoothness of the rotation process. When the second ruler 2 rotates to the desired position, the rotating handle 306 is released, and the rotation process stops. This structure allows the ruler to be easily unfolded or folded, facilitating the measurement of buildings of different widths, and also providing a basis for subsequent angle locking and reading operations. Example 2

[0024] Reference Figures 3-5 This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that the positioning mechanism 4 includes a slot 401 formed on the side surface of the fixing block 302, a fixing plate 403 is fixedly installed on the side surface of the second ruler 2, a sliding rod 404 is fixedly installed on the inner side of the fixing plate 403, a sliding block 405 is slidably installed on the surface of the sliding rod 404, and a locking block 409 is fixedly installed on one side of the sliding block 405.

[0025] A first spring 406 is installed between one side surface of the sliding block 405 and the inner side surface of the fixing plate 403.

[0026] A second spring 407 is installed between the other side surface of the sliding block 405 and the inner surface of the fixing plate 403.

[0027] An angle gauge 5 is fixedly installed on the rear surface of the first ruler 1.

[0028] A sliding handle 408 is fixedly installed on the upper surface of the sliding block 405.

[0029] The outer surface of the positioning mechanism 4 is provided with a housing 402, which is fixedly installed on the surface of the second ruler 2.

[0030] During use, when precise angle locking is required, the operator first slides the sliding handle 408 mounted on the outer shell 402 of the second ruler 2. The sliding handle 408 drives the sliding block 405 to move to one side along the sliding rod 404 on the fixed plate 403. During this process, the first spring 406 on one side of the sliding block 405 is stretched, while the second spring 407 on the other side is compressed. At the same time, the locking block 409 fixed on the sliding block 405 also moves until it completely disengages from the locking groove 401 on the side of the fixed block 302. At this time, the second ruler 2 is in the unlocked state and can rotate freely around the fixed axis 301. After the operator places the second ruler 2 against the surface of the building, he releases the sliding handle 408. Under the action of the reset elastic force, the first spring 406 and the second spring 407 will quickly push the sliding block 405 and the locking block 409 back to their original positions, so that the locking block 409 can accurately re-engage in the locking groove 401, thereby firmly locking the second ruler 2 at the current angle and completing the measurement positioning.

[0031] The remaining structure is the same as that in Example 1.

[0032] Based on embodiments 1-2, the working principle of this utility model is as follows: When using this foldable ruler device to detect the verticality of a building, the operator first pushes the rotating handle 306 on the second ruler 2 to make the second ruler 2 rotate smoothly around the fixed axis 301 until it rests against the surface of the building to be measured. When precise measurement and angle locking are required, the operator slides the sliding handle 408 on the second ruler 2. This action stretches the first spring 406 and compresses the second spring 407, causing the locking block 409 to slide out of the slot 401 of the fixed block 302, thereby releasing the lock on the second ruler 2. Subsequently, the operator can fine-tune the position of the second ruler 2 to align it with the building's verticality. After the building surface is fully fitted and adjusted to the correct position, the sliding handle 408 is released. The reset force of the first spring 406 and the second spring 407 will immediately push the locking block 409 back into the slot 401, thus achieving a stable lock on the rotation angle of the second ruler 2. Throughout the operation, the operator can observe the precise angle value formed between the two rulers in real time and intuitively through the angle gauge 5 on the back of the first ruler 1. The entire process, from unfolding and adjusting to locking, is smooth and quick. It not only enables flexible measurement of complex angles but also ensures the accuracy and stability of the measurement results through reliable mechanical locking, greatly improving the efficiency and reliability of on-site inspection work.

[0033] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A foldable ruler device, comprising a first ruler body (1) and a second ruler body (2), characterized in that: It also includes a rotating mechanism (3) and a positioning mechanism (4). A fixing block (302) is fixedly installed on one side surface of the first ruler body (1) via a fixing shaft (301). The second ruler body (2) is rotatably installed on the surface of the fixing block (302) via a rotating ring (303). The rotating mechanism (3) includes a rotating groove (304) opened on the surface of the fixing block (302). A rotating block (305) is slidably installed inside the rotating groove (304). The positioning mechanism (4) includes a slot (401) formed on the side surface of the fixed block (302), a fixed plate (403) is fixedly installed on the side surface of the second ruler (2), a sliding rod (404) is fixedly installed on the inner side of the fixed plate (403), a sliding block (405) is slidably installed on the surface of the sliding rod (404), and a locking block (409) is fixedly installed on one side of the sliding block (405).

2. The foldable ruler device according to claim 1, characterized in that: The rotating ring (303) is fixedly installed on one side of the second ruler (2), and the sliding block (405) is fixedly installed on the side surface of the rotating ring (303).

3. The foldable ruler device according to claim 1, characterized in that: A rotating handle (306) is fixedly installed on the side surface of the rotating block (305).

4. The foldable ruler device according to claim 1, characterized in that: A first spring (406) is installed between one side surface of the sliding block (405) and the inner side surface of the fixing plate (403).

5. A foldable ruler device according to claim 1, characterized in that: A second spring (407) is installed between the other side surface of the sliding block (405) and the inner side surface of the fixing plate (403).

6. A foldable ruler device according to claim 1, characterized in that: An angle gauge (5) is fixedly installed on the rear surface of the first ruler body (1).

7. A foldable ruler device according to claim 1, characterized in that: A sliding handle (408) is fixedly installed on the upper surface of the sliding block (405).

8. A foldable ruler device according to claim 1, characterized in that: The outer surface of the positioning mechanism (4) is provided with a housing (402), and the housing (402) is fixedly installed on the surface of the second ruler (2).

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