Pavement cross slope measuring instrument
By designing the support rod and rotating gear in the placement structure, the inaccurate measurement problem caused by hand-held instability of the slope measuring instrument is solved, and the stable placement and synchronous operation of the measuring instrument is achieved, which improves the measurement accuracy and operation convenience.
Patent Information
- Application Number
- CN202422550337.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-22
- Publication Date
- 2025-08-12
- Estimated Expiration
- 2034-10-22
AI Technical Summary
The existing slope measuring instrument needs to be kept stable when used, resulting in inaccurate measurement results and discomfort in the staff's hands, and it is difficult to deploy and store the support structure simultaneously.
A pavement cross-slope measuring instrument is designed, and the placement structure includes a base, storage groove, transmission gear, rotating gear and support rod. The stability is increased through the support rod and wear-resistant bar. The support rod is simultaneously deployed and stored through the rotating gear and transmission gear. The fixing plate is connected through the plug-in column and the jack, which realizes the stable placement and convenient replacement of the measuring instrument.
It realizes the stable placement of the measuring instrument, improves measurement accuracy, simplifies the operation process, and simultaneously unfolds and stores the support rods, which facilitates replacement of components and improves the use effect.
Smart Images
Figure CN223216896U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of cross slope measurement, in particular to a road cross slope measuring instrument. Background Art
[0002] Cross slope is a crucial parameter in road design. It refers to the transverse slope of each component of the road width and roadside strip, including the transverse inclination of the pavement, medians, sidewalks, and green belts. The primary function of cross slope is to ensure that rainwater from sidewalks, roadways, and green belts flows smoothly into the street gutters, thereby ensuring the road's drainage performance. Cross slope is typically expressed as a percentage or decimal value, and its magnitude depends primarily on the pavement material and the road's longitudinal gradient. Total stations, laser scanners, and slope meters can be used to measure road cross slope. Slope meters are compact, convenient, and quick to measure, making them the most commonly used instruments for measuring road slope.
[0003] When using a slope measuring instrument, a worker places the instrument on the road surface, rotates the bubble level to level it, and determines the slope based on the angle between the bubble level and the scale. However, during measurement, the instrument lacks a stable structure at the bottom and must be held in hand. This causes the worker to touch the instrument, which can affect the measurement results. Furthermore, the worker needs to hold the instrument at all times, which can easily cause hand discomfort and shaking, further affecting the measurement results and reducing detection accuracy. Utility Model Content
[0004] The main purpose of the utility model is to provide a road surface cross slope measuring instrument, which can effectively solve the problems in the background technology.
[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0006] A road surface cross slope measuring instrument includes a measuring instrument body, a dial is provided on the measuring instrument body, and a rotating frame is provided on the measuring instrument body. A level bubble is installed inside the rotating frame. A placement structure is provided at the bottom of the measuring instrument body, and the placement structure includes a base, a receiving groove, a transmission gear, a rotating gear and a support rod. The receiving groove is opened on the base, the transmission gear and the rotating gear are installed on the base, and the support rod is fixedly connected to the rotating gear.
[0007] Preferably, the measuring instrument body and the dial are provided with through holes, the rotating frame is rotatably installed in the through holes, and the rotating frame is fixedly connected to the horizontal bubble, an indicator needle is fixedly provided on the rotating frame, and the dial is provided with angle scale lines.
[0008] Preferably, a handle is provided on the measuring instrument body, and an adjustment knob is installed on the measuring instrument body near the handle.
[0009] Preferably, the placement structure also includes a mounting groove, a socket, a fixing plate, a plug-in column and a wear-resistant strip, the mounting groove is opened on the base, the socket is arranged in the mounting groove on the base, the fixing plate is fixedly connected to the plug-in column, and the fixing plate is arranged in the mounting groove, and the plug-in column and the socket are plugged together.
[0010] Preferably, the transmission gear and the rotating gear are provided with a rotating shaft, and the end of the rotating shaft is connected to the fixed plate, the transmission gear and the rotating gear are rotatably set on the base, the two rotating gears are meshed and connected with the transmission gear, the wear-resistant strip is fixed on the support rod, and the rotating gear, the support rod and the wear-resistant strip are distributed in a circular array on the base.
[0011] Compared with the prior art, the utility model has the following beneficial effects: the road surface slope measuring instrument, through the placement structure, can increase the stability of the measuring instrument by utilizing the support rods and wear-resistant strips in the placement structure when using the measuring instrument, and can ensure the stable placement of the measuring instrument without the need for staff to hold it, thereby ensuring the accuracy of the measurement results. The support rods are rotatably installed on the base through rotating gears and are used in conjunction with the transmission gears. When one of the support rods is rotated, under the action of the transmission gear and the rotating gear, the other support rod is also synchronously rotated and unfolded, which can ensure the synchronization of the unfolding and can also be stored synchronously. The operation is convenient and fast, and the use effect is excellent. The fixing plate is connected to the base through the plug-in column and the socket, which can not only ensure the normal rotation of the rotating gear and the transmission gear, but also can be quickly disassembled to replace the transmission gear, the rotating gear and other structures, and has good practicality. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0013] Figure 2 This is a schematic diagram of the structure of the utility model after the placement structure is unfolded;
[0014] Figure 3 It is a structural diagram of the placement structure of the utility model;
[0015] Figure 4 For this utility model Figure 3 Enlarged view of point A in the middle.
[0016] In the figure: 1. Measuring instrument body; 2. Dial; 3. Rotating frame; 4. Level bubble; 5. Placement structure; 501. Base; 502. Storage slot; 503. Mounting slot; 504. Socket; 505. Fixing plate; 506. Plug-in column; 507. Transmission gear; 508. Rotating gear; 509. Support rod; 510. Wear-resistant strip; 6. Hand grip; 7. Adjustment knob. DETAILED DESCRIPTION
[0017] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.
[0018] like Figure 1-Figure 4 As shown, a road surface slope measuring instrument includes an instrument body 1, a dial plate 2, and a rotating frame 3 mounted on the instrument body 1. A level bubble 4 is mounted within the rotating frame 3. A placement structure 5 is provided at the bottom of the instrument body 1. The instrument body 1 and the dial plate 2 have through-holes, and the rotating frame 3 is rotatably mounted within the through-holes. The rotating frame 3 is fixedly connected to the level bubble 4. An indicator needle is fixedly mounted on the rotating frame 3, and angle scale lines are provided on the dial plate 2. The instrument body 1 is provided with a handle 6, and an adjustment knob 7 is mounted near the handle 6.
[0019] When using a slope measuring instrument to measure the transverse slope of a road surface, the worker holds the measuring instrument by the handle 6 and operates and unfolds the placement structure 5. The measuring instrument body 1 is stably placed on the road surface through the placement structure 5 to ensure that the measuring instrument body 1 is placed horizontally on the road surface. Due to the influence of the transverse slope, the measuring instrument body 1 is in an inclined placement state. The rotating frame 3 is rotated to place the horizontal bubble 4 horizontally. At this time, the mark on the rotating frame 3 is aligned with the scale on the dial 2. The relative angle between the horizontal bubble 4 and the measuring instrument body 1 can be understood according to the current scale. The angle of the transverse slope of the road surface can be calculated based on the relative angle. When the measurement work is completed, the measuring instrument is picked up and the placement structure 5 is stored.
[0020] According to the above embodiment, the placement structure 5 includes a base 501, a receiving slot 502, a transmission gear 507, a rotating gear 508, and a support rod 509. The receiving slot 502 is provided on the base 501, the transmission gear 507 and the rotating gear 508 are mounted on the base 501, and the support rod 509 is fixedly connected to the rotating gear 508. The placement structure 5 also includes a mounting slot 503, a socket 504, a fixing plate 505, a plug post 506, and a wear strip 510. The mounting slot 503 is provided on the base 501, the socket 504 is disposed in the mounting slot 503 on the base 501, the fixing plate 505 is fixedly connected to the plug post 506, and the fixing plate 505 is disposed in the mounting slot 503, and the plug post 506 is plugged into the socket 504. The transmission gear 507 and the rotating gear 508 are provided with a rotating shaft, and the end of the rotating shaft is connected to the fixed plate 505. The transmission gear 507 and the rotating gear 508 are rotatably set on the base 501. The two rotating gears 508 are meshed and connected with the transmission gear 507. The wear-resistant strip 510 is fixed on the support rod 509, and the rotating gear 508, the support rod 509 and the wear-resistant strip 510 are distributed in a circular array on the base 501.
[0021] It should be noted that, by providing the placement structure 5, when the measuring instrument is in use, the support rods 509 and wear-resistant strips 510 in the placement structure 5 can be used to increase the stability of the measuring instrument. The stable placement of the measuring instrument can be ensured without the need for the staff to hold it, thereby ensuring the accuracy of the measurement results. The support rods 509 are rotatably mounted on the base 501 via the rotating gear 508 and are used in conjunction with the transmission gear 507. When one of the support rods 509 is rotated, the other support rod 509 is also synchronously rotated and unfolded under the action of the transmission gear 507 and the rotating gear 508, thereby ensuring the synchronization of the unfolding and the simultaneous folding. The operation is convenient and fast, and the use effect is excellent. The fixed plate 505 is connected to the base 501 via the plug-in column 506 and the socket 504, which can not only ensure the normal rotation of the rotating gear 508 and the transmission gear 507, but also can be quickly disassembled to replace the transmission gear 507, the rotating gear 508 and other structures, thus having good practicality.
[0022] When using the measuring instrument, one of the support rods 509 is operated, and the support rod 509 is rotated through the corresponding rotating gear 508 until the support rod 509 is rotated out of the storage slot 502. During this process, due to the transmission action of the transmission gear 507, the other rotating gear 508 also rotates between the base 501 and the fixed plate 505, thereby rotating and unfolding the other support rod 509. After the two support rods 509 are unfolded, the measuring instrument body 1 is placed on the road surface. At this time, the wear-resistant strips 510 on the support rods 509 contact the road surface, providing good wear resistance. Under the action of the two support rods 509, the measuring instrument body 1 is stably placed, and then the measurement work can be carried out. After the measurement is completed, one of the support rods 509 is operated, and the support rod 509 is rotated and stored through the rotating gear 508. At the same time, the other support rod 509 is rotated and stored synchronously, which can be quickly stored. When necessary, force can be applied to the fixing plate 505 to pull the plug-in column 506 out of the socket 504, and then the rotating gear 508, the support rod 509 and the transmission gear 507 and other structures can be disassembled to facilitate the replacement of the components in the placement structure 5. The structure is simple, the operation is convenient, and the use effect is good.
[0023] The above content describes the operating principles, features, and beneficial effects of the present invention. Persons skilled in the art will appreciate that the above content does not limit the present invention. The above embodiments and description describe the basic principles and features of the present invention. Various modifications and improvements may be made to the present invention as long as they are consistent with the concept of the present invention, and all such modifications shall fall within the scope of protection claimed by the present invention.
Claims
1. A road cross slope measuring instrument, comprising a measuring instrument body (1), a dial (2) provided on the measuring instrument body (1), and a rotating frame (3) provided on the measuring instrument body (1), a level bubble (4) installed inside the rotating frame (3), characterized in that: A placement structure (5) is provided at the bottom of the measuring instrument body (1), and the placement structure (5) comprises a base (501), a receiving slot (502), a transmission gear (507), a rotating gear (508) and a support rod (509); the receiving slot (502) is provided on the base (501); the transmission gear (507) and the rotating gear (508) are mounted on the base (501); and the support rod (509) is fixedly connected to the rotating gear (508).
2. A road surface cross slope measuring instrument according to claim 1, characterized in that: The measuring instrument body (1) and the dial (2) are provided with through holes, the rotating frame (3) is rotatably mounted in the through holes, and the rotating frame (3) is fixedly connected to the horizontal bubble (4), an indicator needle is fixedly provided on the rotating frame (3), and the dial (2) is provided with angle scale lines.
3. A road surface slope measuring instrument according to claim 2, characterized in that: A hand grip (6) is provided on the measuring instrument body (1), and an adjustment knob (7) is installed on the measuring instrument body (1) at a position close to the hand grip (6).
4. A road surface cross slope measuring instrument according to claim 3, characterized in that: The placement structure (5) further comprises a mounting groove (503), a socket (504), a fixing plate (505), a plug-in column (506) and a wear-resistant strip (510); the mounting groove (503) is provided on the base (501); the socket (504) is provided in the mounting groove (503) on the base (501); the fixing plate (505) is fixedly connected to the plug-in column (506); the fixing plate (505) is provided in the mounting groove (503); and the plug-in column (506) and the socket (504) are plugged together.
5. A road surface cross slope measuring instrument according to claim 4, characterized in that: The transmission gear (507) and the rotating gear (508) are provided with a rotating shaft, and the end of the rotating shaft is connected to the fixed plate (505). The transmission gear (507) and the rotating gear (508) are rotatably arranged on the base (501). The two rotating gears (508) are meshed and connected with the transmission gear (507). The wear-resistant strip (510) is fixed on the support rod (509), and the rotating gear (508), the support rod (509) and the wear-resistant strip (510) are distributed in a ring array on the base (501).