Quick-release anti-backward-sliding rolling range finder capable of measuring gradient

Abstract

The utility model discloses a quick-release anti-back-sliding rolling range finder capable of measuring gradient, and belongs to the technical field of range finders. Comprising a connecting piece, a rotating shaft rotationally connected to the connecting piece and a multi-section spliced handrail detachably connected to the connecting piece, one end of the rotating shaft is detachably connected with a spliced main roller, and the other end of the rotating shaft is fixedly sleeved with a ratchet wheel; the connecting piece is connected with a non-return baffle with one end capable of being attached to the tooth surface of the ratchet wheel and connected with a rim counter used for recording the number of rotation turns of the rotating shaft through a fixed supporting arm, one end of the rotating shaft is rotationally connected with a track plate, and the track plate is slidably connected with a sliding ruler in the radial direction of the spliced main roller; the track plate and the sliding ruler can naturally droop by virtue of self gravity; the utility model relates to a quick-release anti-back-sliding rolling range finder capable of measuring gradient, which aims to solve the problems that the conventional rolling range finder is single in function and poor in detachability, and is easy to slide back to influence the precision.

Description

Technical Field

[0001] This utility model belongs to the field of distance measuring instrument technology, and in particular relates to a quick-release anti-slip rolling distance measuring instrument that can measure slope. Background Technology

[0002] In the daily supervision of water conservancy projects involving rivers, the inspection of river retaining walls and flood control channels is one of the key tasks. However, in practice, the locations of river channels and retaining walls are often remote and difficult to access. Furthermore, these inspection routes are long and primarily on foot, making it difficult for a small number of personnel to carry various large-scale instruments and equipment. Small devices such as rolling distance measuring instruments are typically used for measurement. However, most existing rolling distance measuring instruments only have a single function of length measurement and cannot measure the slope of river retaining walls and flood control channels. Moreover, on long uphill sections, when stopping midway or when multiple people take turns operating the instrument, the rolling distance measuring instrument may slip backward, significantly affecting the measurement accuracy.

[0003] Furthermore, existing rolling rangefinders are not highly detachable, making them inconvenient to carry. Additionally, damaged parts cannot be replaced immediately using modular solutions, necessitating the carrying of a spare set to improve reliability. All of this places significant demands on the physical strength of patrol personnel. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a quick-release anti-slip rolling distance measuring instrument that can measure slope, so as to solve the problems of the existing rolling distance measuring instruments having single function, easy slippage affecting accuracy and poor disassembly.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a quick-release anti-slip rolling distance measuring instrument that can measure slope, including a connector and a rotating shaft rotatably connected to the connector, and a multi-section spliced ​​handrail detachably connected to the connector;

[0006] The rotating shaft has a detachable connection to a spliced ​​main roller at one end, and a ratchet is fixedly fitted at the other end. The connecting piece is connected to a check baffle that can abut against the ratchet tooth surface at one end and a wheel counter for recording the number of rotations of the rotating shaft via a fixed support arm.

[0007] Furthermore, a track plate is rotatably connected to one end of the rotating shaft, and a sliding ruler is slidably connected to the track plate along the radial direction of the spliced ​​main roller. The track plate and the sliding ruler can hang down naturally under their own weight.

[0008] Optionally, the sliding ruler is provided with a positioning hole, and the track plate is provided with a positioning pin that can be inserted and engaged with the positioning hole.

[0009] Optionally, a flat-head knurled screw is movably inserted through one end of the track plate that is rotatably connected to the rotating shaft. One end of the flat-head knurled screw is threaded to the end of the rotating shaft, and the track plate can be clamped between the post head of the flat-head knurled screw and the end of the rotating shaft.

[0010] Optionally, the multi-section spliced ​​handrail includes several inner tubes and outer tubes. Several sets of first positioning holes are provided on the wall of the outer tube along its axial direction. The two ends of the inner tube are respectively provided with first floating positioning pins that can be inserted and cooperate with the first positioning holes.

[0011] Optionally, the spliced ​​main roller includes several arc-shaped wheel plates, which can be arranged to form a wheel-shaped structure. Several first sleeves are arranged in a circular array along the rotation axis of the rotating shaft. Each arc-shaped wheel plate has a second sleeve corresponding to the first sleeve on its inner arc surface. A connecting pipe is inserted between the first sleeve and the second sleeve. The walls of the first sleeve and the second sleeve are respectively provided with second positioning holes. The two ends of the connecting pipe are respectively provided with second floating positioning pins that can be inserted and cooperate with the second positioning holes.

[0012] Optionally, an anti-slip rubber patch is provided on the outer arc surface of the arc-shaped wheel plate.

[0013] Optionally, the fixed support arm is provided with a digital display panel that is electrically connected to the wheel rim counter.

[0014] Optionally, the connector and the rotating shaft are rotatably connected by a bearing.

[0015] Compared with the prior art, the beneficial effects achieved by this utility model are as follows:

[0016] (1) The rangefinder is disassembled more easily by using a multi-section spliced ​​handrail, spliced ​​main roller and connecting parts. The "anti-reverse structure" composed of ratchet and anti-reverse baffle effectively prevents the rangefinder from sliding backward in actual use. At the same time, the "slope measurement structure" composed of track plate and sliding ruler can measure the slope of the slope without the need for additional instruments, which increases the versatility of the rangefinder's functions.

[0017] (2) Both the modular design of the spliced ​​main roller and the multi-section spliced ​​handrail allows them to be disassembled into multiple small modules, greatly saving transportation space and facilitating their transport to the field by manual carrying or small vehicles. Furthermore, the modular design eliminates the need for operators to carry an additional set of spare equipment; they only need to carry a small number of spare parts, reducing their workload. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is a schematic diagram of the structure of a quick-release anti-slip rolling distance measuring instrument capable of measuring slope in a preferred embodiment of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the spliced ​​active roller, track plate, and sliding ruler in a preferred embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of the ratchet, fixed support arm, and anti-reverse baffle in a preferred embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram illustrating the principle of a quick-release anti-slip rolling distance measuring instrument for measuring slope in a preferred embodiment of this utility model.

[0023] The components include: 1. Connector; 2. Shaft; 201. First sleeve; 3. Ratchet; 4. Fixed support arm; 5. Anti-reverse baffle; 6. Wheel rim counter; 7. Track plate; 8. Sliding ruler; 9. Positioning pin; 10. Flat-head knurled screw; 11. Inner tube; 1101. First floating positioning pin; 12. Outer tube; 1201. First positioning socket; 13. Arc-shaped wheel plate; 1301. Second sleeve; 14. Connecting tube; 15. Second positioning socket; 16. Second floating positioning pin; 17. Digital display panel. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. These drawings are simplified schematic diagrams, which are only used to illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0025] It should be noted that if directional indicators (such as up, down, bottom, top, etc.) are involved in this embodiment, these directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" and "second" may explicitly or implicitly include one or more of that feature. Unless otherwise explicitly specified and limited, the terms "set," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances. Example 1

[0026] like Figures 1-4 As shown, a quick-release anti-slip rolling distance measuring instrument for measuring slope includes a connector 1, a rotating shaft 2 rotatably connected to the connector 1, and a multi-section spliced ​​handrail detachably connected to the connector 1. One end of the rotating shaft 2 is detachably connected to a spliced ​​main roller. The connector 1 consists of two metal tubes welded together vertically. The spliced ​​main roller, the multi-section spliced ​​handrail, and the rotating shaft 2 can be detached and connected by various connection methods such as plug-in, snap-fit, and snap-fit ​​in the prior art, so as to facilitate disassembly, storage, and assembly according to different needs, thereby flexibly adapting to various usage scenarios. Meanwhile, a ratchet 3 is fixedly fitted at the other end of the rotating shaft 2, and the connecting piece 1 is connected via a fixed support arm 4 to a check baffle 5, one end of which can abut against the tooth surface of the ratchet 3, and a wheel rim counter 6 for recording the number of rotations of the rotating shaft 2. The wheel rim counter 6 is existing technology and can record the number of rotations of the rotating shaft 2. The rotating shaft 2 and the spliced ​​main roller can rotate synchronously. The travel distance is calculated based on the number of rotations of the rotating shaft 2 combined with parameters such as the outer diameter of the spliced ​​main roller. At the same time, the ratchet 3, which rotates synchronously with the rotating shaft 2, and the check baffle 5 are made of metal with strong deformation recovery ability, so that one end of the check baffle 5 can slide along the tooth surface on it, and when the rotating shaft 2 rotates in the reverse direction, one end of the check baffle 5 can abut against the tooth groove on the tooth surface, specifically as follows. Figure 1 , 3As shown, this effectively prevents the rotating shaft 2 from rotating in the opposite direction, improving testing accuracy. One end of the rotating shaft 2 is rotatably connected to a track plate 7, and a sliding ruler 8 is slidably connected to the track plate 7 along the radial direction of the spliced ​​main roller. The track plate 7 and the sliding ruler 8 can hang naturally under their own weight. When the spliced ​​main roller rolls on a slope with a certain gradient, the slope can be calculated from the distance the sliding ruler 8 moves relative to the track plate 7 without the need for additional measuring equipment.

[0027] It should be noted that when the sliding ruler 8 is fully retracted onto the track plate 7, the end of the sliding ruler 8 that hangs down naturally and points towards the ground has the same rotation radius R as the spliced ​​main roller. Furthermore, when the spliced ​​main roller rolls on slopes of varying gradients, the track plate 7 and the sliding ruler 8 can hang down naturally under the influence of gravity, and the sliding ruler 8 will also slide relative to the track plate 7 until one end of it rests against the slope surface. Figure 4 As shown, the sliding ruler 8 slides a distance ΔH relative to the track plate 7. The slope angle ∠A = ∠B, COS(∠A) = COS(∠B) = (R) / (R + ΔH), and ΔH = (R) / COS(∠A) - R. Different slope angles result in different elongations ΔH. Therefore, marking the corresponding slope angles (scales) on the sliding ruler 8 at different elongation ΔH positions allows for quick determination of the slope angle, thus enabling rapid single-person measurement of the slope angle and enriching the functionality of the rangefinder.

[0028] Furthermore, such as Figure 2 , Figure 4 As shown, the sliding ruler 8 is provided with a positioning hole, and the track plate 7 is provided with a positioning pin 9 that can be inserted and engaged with the positioning hole. That is, when the positioning pin 9 passes through the track plate 7 and is inserted into the positioning hole, the sliding ruler 8 is completely retracted on the track plate 7 to prevent the sliding ruler 8 from suddenly sliding off the track plate 7 when the spliced ​​main roller is moving, thus affecting the rolling movement of the spliced ​​main roller.

[0029] At the same time, such as Figure 2 As shown, a flat-head knurled screw 10 is movably connected to one end of the rotating shaft 2 on the track plate 7. One end of the flat-head knurled screw 10 is threaded to the end of the rotating shaft 2, and the track plate 7 can be clamped between the head of the flat-head knurled screw 10 and the end of the rotating shaft 2. That is, loosening the flat-head knurled screw 10 allows the track plate 7 and the track ruler to hang down naturally, while tightening the flat-head knurled screw 10 fixes the track plate 7 and the sliding ruler 8 in a position where they do not hang down naturally, thereby preventing the track plate 7 and the sliding ruler 8 from colliding with uneven ground, stones, etc. due to natural hanging.

[0030] In this embodiment, the connecting member 1 and the rotating shaft 2 are rotatably connected by a bearing to increase the smoothness of the rotation of the rotating shaft 2 and the spliced ​​main roller. At the same time, the fixed support arm 4 is provided with a digital display panel 17 electrically connected to the wheel rim counter 6. The digital display panel 17 is existing technology and can display the recorded data of the wheel rim counter 6 in real time, making it convenient for operators to obtain relevant data at any time, and can control the wheel rim counter 6 to return to zero, start, and stop. Example 2

[0031] like Figure 1 As shown, based on Embodiment 1, the multi-section splicing handrail includes several inner tubes 11 and outer tubes 12. Several sets of first positioning holes 1201 are provided on the wall of the outer tube 12 along its axial direction. The two ends of the inner tubes 11 are respectively provided with first floating positioning pins 1101 that can be inserted and cooperate with the first positioning holes 1201. Specifically, the first floating positioning pin 1101 includes an installation tube that is perpendicular to the central axis of the inner tube 11 and is located inside the inner tube 11. The two ends of the installation tube are respectively movably inserted with pins, and the installation tube is provided with springs that can elastically support the pins. The pins cannot be directly pulled out from the installation tube and can be retracted into the installation tube. Therefore, multiple inner tubes 11 and outer tubes 12 can be connected via the first floating positioning pin 1101 on the inner tube 11 to form a multi-section handrail for the operator to hold. The outer wall of the metal tube on the connector 1 used to connect the multi-section handrail is also provided with a first positioning insertion hole 1201 to facilitate the disassembly and connection of the multi-section handrail to the connector 1. This multi-section handrail is not only easy to disassemble and store, but also allows for adjustment of the overall length of the multi-section handrail by adjusting the insertion positions of the inner tubes 11 and outer tubes 12, making it more versatile. Furthermore, it allows for modular replacement when any inner tube 11 and / or outer tube 12 is damaged.

[0032] Furthermore, such as Figure 2As shown, the spliced ​​main roller includes several arc-shaped wheel plates 13, which can be arranged to form a wheel-shaped structure. Anti-slip rubber patches are provided on the outer arc surface of the arc-shaped wheel plates 13 to increase the grip of the arc-shaped wheel plates 13. Furthermore, a number of first sleeves 201 arranged in a circular array are provided on the rotating shaft 2 along its rotation axis 2. Each arc-shaped wheel plate 13 has a second sleeve 1301 that corresponds to the first sleeve 201 on its inner arc surface. A connecting pipe 14 is inserted between the first sleeve 201 and the second sleeve 1301. The first sleeve 201 and the second sleeve 1301 are respectively provided with second positioning holes 15 on their pipe walls. The two ends of the connecting pipe 14 are respectively provided with second floating positioning pins 16 that can be inserted and cooperate with the second positioning holes 15. The specific structure of the second floating positioning pin 16 is the same as that of the first floating positioning pin 1101. This design makes the connection between the spliced ​​main roller and the rotating shaft 2 simple and convenient. The installation can be completed simply by aligning the arc-shaped wheel plates 13 and inserting them into the corresponding positions. During disassembly, by pressing the pin on the second floating positioning pin 16, it retracts into the mounting tube, allowing the connecting tube 14 to be pulled out from the first sleeve 201 or the second sleeve 1301. This makes it easy to remove each arc-shaped wheel plate 13, greatly improving the efficiency of assembly and disassembly and facilitating the installation or adjustment of the rollers in different scenarios. Furthermore, when an arc-shaped wheel plate 13 experiences wear, damage, or deformation, it is not necessary to replace the entire spliced ​​main roller; only the damaged arc-shaped wheel plate 13 needs to be disassembled and replaced individually.

[0033] In this embodiment, both the modular main roller and the multi-section handrail adopt a modular design, allowing them to be disassembled into multiple small modules, greatly saving transportation space and facilitating their transport to the field site by manual carrying or small vehicle transport. Furthermore, due to the modular design, operators do not need to carry an additional set of spare equipment; they only need to carry a small number of spare parts.

[0034] Working principle: The multi-section spliced ​​handrail is detachably connected to the connector 1, and the spliced ​​main roller is detachably connected to one end of the rotating shaft 2, making it easy to disassemble, store, and carry. When the rotating shaft 2 rotates, the ratchet 3 fixedly sleeved at the other end rotates synchronously. Since the anti-reverse baffle 5 can abut against the tooth surface of the ratchet 3, it can effectively prevent the rotating shaft 2 from reversing, ensuring unidirectional movement. At the same time, the wheel rim counter 6 on the connector 1 can record the number of rotations of the rotating shaft 2, which is helpful for obtaining data information on the distance traveled. In addition, the track plate 7 rotatably connected to one end of the rotating shaft 2 and the sliding ruler 8 slidably connected to the main roller radially on the track plate 7 can hang naturally under their own weight. The slope data of the ramp can be obtained by the distance that the sliding ruler 8 slides relative to the track plate 7, thereby increasing the versatility of the rangefinder's functions.

[0035] Based on the preferred embodiments of this utility model described above, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A quick release anti-slip and rolling range finder with measurable slope, characterized in that: The utility model relates to a connecting piece (1) and a rotating shaft (2) rotatably connected to the connecting piece (1), and a plurality of jointed handrails detachably connected to the connecting piece (1). One end of the rotating shaft (2) is detachably connected to a jointed main roller, and the other end of the rotating shaft (2) is fixedly sleeved with a ratchet wheel (3); the connecting piece (1) is connected through a fixed support arm (4) to a reverse stop plate (5) with one end capable of abutting against the tooth surface of the ratchet wheel (3) and a wheel circle counter (6) for recording the number of rotations of the rotating shaft (2); one end of the rotating shaft (2) is rotatably connected to a track plate (7), the track plate (7) is slidably connected to a sliding ruler (8) along the radial direction of the jointed main roller, and the track plate (7) and the sliding ruler (8) can naturally sag by gravity. The sliding ruler (8) is provided with a positioning hole, and the track plate (7) is provided with a positioning pin (9) capable of being inserted into the positioning hole.

2. The quick-release anti-dumping and rolling range finder with measurable slope according to claim 1, characterized in that: The track plate (7) is rotatably connected to one end of the rotating shaft (2) and movably provided with a flat head knurled screw (10), one end of the flat head knurled screw (10) is threadedly connected to the end of the rotating shaft (2), and the track plate (7) can be clamped between the head of the flat head knurled screw (10) and the end of the rotating shaft (2).

3. The quick-release anti-dumping and rolling range finder with measurable slope according to claim 1, characterized in that: The plurality of jointed handrails include a plurality of inner pipes (11) and outer pipes (12), the outer pipes (12) are provided with a plurality of groups of first positioning holes (1201) along the axial direction of the outer pipes (12), and the two ends of the inner pipes (11) are respectively provided with first floating positioning pins (1101) capable of being inserted into the first positioning holes (1201).

4. The quick-release, downhill-preventing, rolling range-finder of claim 1, wherein: The jointed main roller includes a plurality of arc-shaped wheel plates (13), the arc-shaped wheel plates (13) can be arranged to form a wheel-shaped structure, the rotating shaft (2) is provided with a plurality of first sleeve pipes (201) arranged in a circumferential array along the rotating shaft (2), each arc-shaped wheel plate (13) is provided with a second sleeve pipe (1301) corresponding to the first sleeve pipe (201) on the inner side of the arc-shaped wheel plate (13), a connecting pipe (14) is inserted between the first sleeve pipe (201) and the second sleeve pipe (1301), the first sleeve pipe (201) and the second sleeve pipe (1301) are respectively provided with second positioning holes (15) in the pipe walls, and the two ends of the connecting pipe (14) are respectively provided with second floating positioning pins (16) capable of being inserted into the second positioning holes (15).

5. The quick-release, downhill-preventing, rolling range-finder of claim 1, wherein: The outer side of the arc-shaped wheel plate (13) is provided with an antiskid rubber patch.

6. The quick-release, downhill-preventing, rolling range finder of claim 5, wherein: The fixed support arm (4) is provided with a digital display panel (17) electrically connected to the wheel circle counter (6).

7. The quick-release, downhill-preventing, rolling range-finder of claim 1, wherein: The connecting piece (1) and the rotating shaft (2) are rotatably connected through a bearing.

8. The quick-release, downhill-preventing, rolling range-finder of claim 1, wherein: ​

Images