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

Abstract

The invention discloses a quick-release anti-backward-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 invention discloses a quick-release anti-back-sliding rolling range finder capable of measuring gradient, and aims to solve the problems that the conventional rolling range finder is single in function, easy to back-slide to influence the precision and poor in detachability.

Description

Technical Field

[0001] The invention belongs to the technical field of distance measuring instruments, and in particular relates to a quick-detachable anti-slip rolling distance measuring instrument capable of measuring slope. Background Art

[0002] In the daily supervision of river-related construction projects of water conservancy projects, the inspection of river retaining walls and flood control channels is one of the key tasks. In actual work, the construction locations of rivers, retaining walls, etc. are often remote and inconvenient for transportation. In addition, the inspection routes are long and mainly on foot. During the inspection, there are few people and it is difficult to carry a variety of large instruments and equipment. Small equipment is usually used for measurement, such as rolling distance meters. However, most of the existing rolling distance meters only have a single length measurement function and cannot measure the slope of river retaining walls and flood control roads. In addition, on long uphill sections, when stopping halfway or multiple people operate alternately, the rolling distance meter may roll back, which has a great impact on the measurement accuracy.

[0003] In addition, the existing rolling distance meter is not very detachable and not easy to carry. At the same time, some parts cannot be replaced immediately in a modular way if they are damaged. The only way to improve reliability is to carry another set of spare equipment with you, which places high demands on the physical strength of the inspectors. Summary of the invention

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a quick-detachable anti-rollback rolling distance meter capable of measuring slope, so as to solve the problems of the existing rolling distance meter having a single function, being prone to rollback and affecting the accuracy, and having poor detachability.

[0005] To achieve the above object, the technical solution adopted by the present invention is: a quick-detachable anti-slip rolling distance meter capable of measuring slope, comprising a connecting member, a rotating shaft rotatably connected to the connecting member, and a multi-section spliced ​​handrail detachably connected to the connecting member; One end of the rotating shaft is detachably connected to the spliced ​​main roller, the other end of the rotating shaft is fixedly sleeved with a ratchet, and the connecting member is connected to a non-return baffle plate having one end that can be abutted against the tooth surface of the ratchet through a fixed support arm, and is connected to a wheel rim counter for recording the number of rotations of the rotating shaft; One end of the rotating shaft is rotatably connected to a track plate, 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 droop naturally due to their own gravity.

[0006] Optionally, a positioning hole is provided on the sliding ruler, and a positioning pin capable of being plugged and matched with the positioning hole is penetrated through the track plate.

[0007] Optionally, a flat-head knurled screw is movably provided on one end of the track plate rotatably connected to the rotating shaft, one end of the flat-head knurled screw is threadedly connected to the end of the rotating shaft, and the track plate can be clamped between the column head on the flat-head knurled screw and the end of the rotating shaft.

[0008] Optionally, the multi-section spliced ​​handrail includes a plurality of inner tubes and an outer tube, a plurality of groups of first positioning holes are arranged on the tube wall of the outer tube along its axial direction, and first floating positioning pins capable of being plugged and matched with the first positioning holes are respectively arranged at both ends of the inner tube.

[0009] Optionally, the spliced ​​main roller includes a plurality of arc-shaped wheel plates, and the plurality of arc-shaped wheel plates can be arranged to form a wheel-shaped structure, and a plurality of first sleeves distributed in a circular array are arranged on the rotating shaft along its rotation axis, and a second sleeve corresponding to the first sleeve is arranged on the inner arc surface of each arc-shaped wheel plate, and a connecting tube is inserted between the first sleeve and the second sleeve, and second positioning holes are respectively arranged on the tube walls of the first sleeve and the second sleeve, and second floating positioning pins that can be plugged and matched with the second positioning holes are respectively arranged at both ends of the connecting tube.

[0010] Optionally, a non-slip rubber patch is provided on the outer curved surface of the curved wheel plate.

[0011] Optionally, a digital display panel electrically connected to the wheel rim counter is provided on the fixed support arm.

[0012] Optionally, the connecting member is rotatably connected to the rotating shaft via a bearing.

[0013] Compared with the prior art, the present invention has the following beneficial effects: (1) The disassembly connection of the multi-section spliced ​​handrail, spliced ​​main roller and connector increases the degree of disassembly of the distance meter. The "anti-reverse structure" composed of the ratchet and the non-reverse baffle effectively prevents the distance meter from sliding in the opposite direction during actual application. At the same time, the "slope measurement structure" composed of the track plate and the sliding ruler can measure the slope of the slope without the assistance of additional instruments, which increases the diversity of the distance meter's functions; (2) Both the spliced ​​main roller and the multi-section spliced ​​handrail adopt a modular design, so that the spliced ​​main roller and the multi-section spliced ​​handrail can be disassembled into multiple small modules, which greatly saves transportation space and is convenient for transporting to the field by manpower, small vehicles, etc. At the same time, due to the modular design, the operator does not need to carry another set of spare equipment, but only needs to carry a small number of spare parts, which reduces the workload of the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0015] Figure 1 It is a structural schematic diagram of a quick-detachable anti-slip rolling distance meter capable of measuring slope in a preferred embodiment of the present invention; Figure 2 It is a structural schematic diagram of a spliced ​​active roller, a track plate, and a sliding ruler in a preferred embodiment of the present invention; Figure 3 It is a schematic diagram of the structure of the ratchet, the fixed support arm and the anti-return baffle in the preferred embodiment of the present invention; Figure 4 It is a schematic diagram of the principle of the quick-detachable anti-slip rolling distance meter that can measure the slope in the preferred embodiment of the present invention when testing the slope; Among them, 1. connecting part; 2. rotating shaft; 201. first sleeve; 3. ratchet; 4. fixed arm; 5. check baffle; 6. wheel rim counter; 7. track plate; 8. sliding ruler; 9. positioning pin; 10. flat head knurled screw; 11. internal insert tube; 1101. first floating positioning pin; 12. external tube; 1201. first positioning socket; 13. arc wheel plate; 1301. second sleeve; 14. connecting tube; 15. second positioning socket; 16. second floating positioning pin; 17. digital display panel. DETAILED DESCRIPTION

[0016] The present invention will now be further described in detail with reference to the accompanying drawings and embodiments. These drawings are simplified schematic diagrams that only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0017] It should be noted that if there are directional indications (such as up, down, bottom, top, etc.) involved in this embodiment, the directional indication is only used to explain the relative position relationship, movement, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly. The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. Unless otherwise clearly specified and defined, the terms "set", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Embodiment 1

[0018] like Figure 1-Figure 4As shown, a quick-detachable anti-rollback rolling rangefinder capable of measuring slope comprises a connecting member 1 and a rotating shaft 2 rotatably connected to the connecting member 1, and a multi-section spliced ​​handrail detachably connected to the connecting member 1, one end of the rotating shaft 2 is detachably connected to a spliced ​​main roller, the connecting member 1 is composed of two metal tubes vertically welded together, and the detachable connection between the spliced ​​main roller, the multi-section spliced ​​handrail and the rotating shaft 2 can be achieved by various connection methods such as plug-in, buckle, and clamping in the prior art, so as to facilitate disassembly, storage, and assembly for use according to different needs, thereby flexibly adapting to various usage scenarios. At the same time, a ratchet 3 is fixedly sleeved on the other end of the rotating shaft 2, and the connecting member 1 is connected to a non-return baffle 5 whose end can be abutted against the tooth surface of the ratchet 3 through a fixed support arm 4, and is connected to a wheel rim counter 6 for recording the number of rotations of the rotating shaft 2. The wheel rim counter 6 is a prior art, and can record the number of rotations of the rotating shaft 2. The rotating shaft 2 and the spliced ​​main roller can rotate synchronously, and the travel distance and the like can be calculated based on the number of rotations of the rotating shaft 2 combined with the outer diameter of the spliced ​​main roller and other parameters. At the same time, the ratchet 3 that rotates synchronously with the rotating shaft 2, the non-return baffle 5 is made of metal with strong deformation recovery ability, so that one end of the non-return baffle 5 can slide along the tooth surface thereon, and when the rotating shaft 2 rotates in the opposite direction, one end of the non-return baffle 5 can abut against the tooth groove on the tooth surface, as shown in the figure. Figure 1 , 3 As shown, the shaft 2 can be effectively prevented from rotating in the opposite direction, thereby improving the test accuracy. One end of the 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 naturally droop due to their own gravity. When the spliced ​​main roller rolls on a slope with a certain slope, the slope can be calculated by the distance the sliding ruler 8 moves relative to the track plate 7 without the need for additional measuring equipment.

[0019] It should be noted that when the sliding ruler 8 is fully retracted on the track plate 7, the end of the sliding ruler 8 that naturally droops and points to the ground is the same as the rotation radius R of the spliced ​​main roller. When the spliced ​​main roller rolls on a slope with different slopes, the track plate 7 and the sliding ruler 8 can droop naturally under the action of gravity, and the sliding ruler 8 will also slide relative to the track plate 7 until one end of it rests on the slope surface. Figure 4 As shown, at this time, the sliding distance of the sliding ruler 8 relative to the track plate 7 is △H, the slope angle ∠A=∠B, COS (∠A)=COS (∠B)=(R) / (R+△H), △H=(R) / COS (∠A)-R. ​​Different slope angles have different elongations △H, so the corresponding slope angles (scales) at different elongations △H on the sliding ruler 8 can be marked to quickly obtain the slope of the slope, thereby realizing the single-person rapid measurement of the slope angle and enriching the function of the rangefinder.

[0020] Further, such as Figure 2 , Figure 4 As shown, a positioning hole is provided on the sliding ruler 8, and a positioning pin 9 which can be plugged into the positioning hole is passed through the track plate 7, that is, when the positioning pin 9 passes through the track plate 7 and is plugged 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 out of the track plate 7 when the spliced ​​main roller is moving, thereby affecting the rolling movement of the spliced ​​main roller.

[0021] At the same time, if Figure 2 As shown, a flat-head knurled screw 10 is movably provided on one end of the track plate 7 which is rotatably connected to the rotating shaft 2. 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 column head on the flat-head knurled screw 10 and the end of the rotating shaft 2. That is, by loosening the flat-head knurled screw 10, the track plate 7 and the track ruler 8 can be naturally drooped, and by tightening the flat-head knurled screw 10, the track plate 7 and the sliding ruler 8 can be fixed in a position where they do not droop naturally, thereby preventing the track plate 7 and the sliding ruler 8 from colliding with the rugged ground, stones, etc. due to natural sagging.

[0022] In this embodiment, the connecting member 1 is rotatably connected to the rotating shaft 2 via a bearing to increase the smoothness of the rotation of the rotating shaft 2 and the spliced ​​main roller. At the same time, a digital display panel 17 electrically connected to the wheel rim counter 6 is provided on the fixed support arm 4. The digital display panel 17 is a prior art and can display the recorded data of the wheel rim counter 6 in real time, so that the operator can obtain relevant data at any time, and can control the wheel rim counter 6 to reset, start, and shut down. Embodiment 2

[0023] like Figure 1As shown, on the basis of embodiment one, the multi-section spliced ​​handrail includes a plurality of inner tubes 11 and an outer tube 12, and a plurality of groups of first positioning holes 1201 are arranged on the tube wall of the external tube 12 along its axial direction, and first floating positioning pins 1101 which can be plugged and matched with the first positioning holes 1201 are respectively arranged at both ends of the inner tube 11. Specifically, the first floating positioning pin 1101 includes a mounting tube which is arranged perpendicular to the central axis of the inner tube 11 and arranged inside the inner tube 11, and pins are respectively movably inserted at the openings at both ends of the mounting tube, and a spring which can elastically support the pin is arranged in the mounting tube, so that the pin cannot be directly pulled out from the mounting tube and can be retracted into the mounting tube. Therefore, through the first floating positioning pin 1101 on the inner insert tube 11, multiple inner insert tubes 11 and the external tube 12 can be connected to form a multi-section spliced ​​handrail for the operator to hold, and the outer wall of the metal tube on the connector 1 for connecting the multi-section spliced ​​handrail is also provided with a first positioning plug hole 1201, so that the multi-section spliced ​​handrail can be disassembled and connected to the connector 1. The multi-section spliced ​​handrail is not only easy to disassemble and store, but also can be used to adjust the overall length of the multi-section spliced ​​handrail according to the position of the inner insert tube 11 and the external tube 12. It has stronger versatility, and when any inner insert tube 11 and / or external tube 12 is damaged, it can also be replaced in a modular manner.

[0024] Further, such as Figure 2 As shown, the spliced ​​main roller includes a plurality of arcuate wheel plates 13 , which can be arranged to form a wheel-shaped structure. An anti-slip rubber patch is arranged on the outer arc surface of the arcuate wheel plate 13 to increase the grip of the arcuate wheel plate 13 . A plurality of first sleeves 201 distributed in a circular array are arranged along the rotating shaft 2, a second sleeve 1301 corresponding to the first sleeve 201 is arranged on the inner curved surface of each arc wheel plate 13, and a connecting tube 14 is inserted between the first sleeve 201 and the second sleeve 1301, second positioning holes 15 are respectively arranged on the tube walls of the first sleeve 201 and the second sleeve 1301, and second floating positioning pins 16 that can be plugged and matched with the second positioning holes 15 are respectively arranged at both ends of the connecting tube 14, and the specific structure of the second floating positioning pin 16 refers to the structure of the above-mentioned first floating positioning pin 1101. This design makes the connection between the spliced ​​main roller and the rotating shaft 2 simple and convenient, and the installation can be completed by aligning and inserting the arc wheel plates 13 in turn into the corresponding positions. During disassembly, by pressing the pin on the second floating positioning pin 16 to retract it into the installation tube, the connecting tube 14 can be pulled out from the first sleeve 201 or the second sleeve 1301, so that each arc wheel plate 13 can be easily removed, which greatly improves the efficiency of assembly and disassembly and facilitates the installation or adjustment of the roller in different scenarios. When a certain arc wheel plate 13 is worn, damaged, deformed, etc., there is no need to replace the entire spliced ​​main roller, and only the damaged arc wheel plate 13 needs to be disassembled and replaced separately.

[0025] The spliced ​​main roller and the multi-section spliced ​​handrail in this embodiment are both modularly designed, so that the spliced ​​main roller and the multi-section spliced ​​handrail can be disassembled into multiple small modules, which greatly saves transportation space and is convenient for transporting to the field by carrying on the back or in a small vehicle. At the same time, due to the modular design, the operator does not need to carry another set of spare equipment, but only needs to carry a small number of spare parts.

[0026] Working principle: The multi-section spliced ​​handrail is detachably connected to the connecting piece 1, and the spliced ​​main roller is detachably connected to one end of the rotating shaft 2, which is convenient for disassembly, storage and carrying. When the rotating shaft 2 rotates, the ratchet 3 fixedly mounted on the other end rotates synchronously, and because the non-return baffle 5 can be close to the tooth surface of the ratchet 3, it can effectively prevent the rotating shaft 2 from reversing and ensure the unidirectional movement. At the same time, the wheel rim counter 6 on the connecting piece 1 can record the number of rotations of the rotating shaft 2, which is conducive to obtaining data information on the travel distance. In addition, the track plate 7 rotatably connected to one end of the rotating shaft 2 and the sliding ruler 8 on the track plate 7 that is radially slidably connected to the main roller can naturally droop due to their own gravity. The slope data of the slope can be obtained by the sliding distance of the sliding ruler 8 relative to the track plate 7, so as to increase the diversity of the rangefinder function.

[0027] The above is based on the ideal embodiment of the present invention. Through the above description, relevant personnel can make various changes and modifications without departing from the technical concept of the present invention. The technical scope of the present invention is not limited to the content in the specification, and the technical scope must be determined according to the scope of the claims.

Claims

1. A quick-release anti-slip rolling distance meter capable of measuring slope, characterized in that: It comprises a connecting member (1), a rotating shaft (2) rotatably connected to the connecting member (1), and a multi-section spliced ​​handrail detachably connected to the connecting member (1); One end of the rotating shaft (2) is detachably connected to a spliced ​​main roller, the other end of the rotating shaft (2) is fixedly sleeved with a ratchet (3), and the connecting member (1) is connected to a non-return baffle (5) having one end that can be abutted against the tooth surface of the ratchet (3) through a fixed support arm (4) and is connected to a wheel rim 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), and a sliding ruler (8) is slidably connected to the track plate (7) along the radial direction of the spliced ​​main roller, and the track plate (7) and the sliding ruler (8) can droop naturally due to their own gravity.

2. The quick-detachable anti-slip rolling distance meter capable of measuring slope according to claim 1, characterized in that: The sliding ruler (8) is provided with a positioning hole, and the track plate (7) is provided with a positioning pin (9) capable of plugging and cooperating with the positioning hole.

3. The quick-detachable anti-slip rolling distance meter capable of measuring slope according to claim 1, characterized in that: A flat-head knurled screw (10) is movably provided on one end of the track plate (7) that is rotatably connected to the rotating shaft (2); 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 column head on the flat-head knurled screw (10) and the end of the rotating shaft (2).

4. The quick-detachable anti-slip rolling distance meter capable of measuring slope according to claim 1, characterized in that: The multi-section spliced ​​handrail comprises a plurality of inner tubes (11) and an outer tube (12); a plurality of groups of first positioning holes (1201) are arranged on the tube wall of the outer tube (12) along its axial direction; and first floating positioning pins (1101) capable of being plugged into and matched with the first positioning holes (1201) are respectively arranged at both ends of the inner tube (11).

5. The quick-detachable anti-slip rolling distance meter capable of measuring slope according to claim 1, characterized in that: The spliced ​​main roller comprises a plurality of arc-shaped wheel plates (13), wherein the plurality of arc-shaped wheel plates (13) can be arranged to form a wheel-shaped structure, and the rotating shaft (2) is provided with a plurality of first sleeves (201) distributed in a circumferential array along its rotating shaft (2), and a second sleeve (1301) corresponding to the first sleeve (201) is provided on the inner arc surface of each arc-shaped wheel plate (13), and a connecting tube (14) is inserted between the first sleeve (201) and the second sleeve (1301), and second positioning holes (15) are respectively provided on the tube walls of the first sleeve (201) and the second sleeve (1301), and second floating positioning pins (16) capable of plugging and cooperating with the second positioning holes (15) are respectively provided at both ends of the connecting tube (14).

6. The quick-detachable anti-slip rolling distance meter capable of measuring slope according to claim 5, characterized in that: An anti-slip rubber patch is provided on the outer curved surface of the curved wheel plate (13).

7. The quick-detachable anti-slip rolling distance meter capable of measuring slope according to claim 1, characterized in that: The fixed support arm (4) is provided with a digital display panel (17) electrically connected to the wheel rim counter (6).

8. The quick-detachable anti-slip rolling distance meter capable of measuring slope according to claim 1, characterized in that: The connecting member (1) and the rotating shaft (2) are rotatably connected via a bearing.

Images