Road design measuring device

Abstract

The utility model relates to the technical field of road measuring devices, and discloses a road design measuring device which comprises a pushing support and a distance measuring wheel rotationally installed in an installation groove in the bottom of the pushing support, openings are formed in the lower portions of the two sides of the pushing support, the openings are communicated with the installation groove, elastic assemblies are arranged in the openings, and the distance measuring wheel is arranged in the installation groove. According to the utility model, the push support and the auxiliary supports are arranged to be hollow structures, and the electric cylinder and the lever are arranged in the push support and the auxiliary supports, so that the distance measuring wheel can be driven to move by pushing the lever, and the distance measuring wheel can be driven to move by pushing the lever. The problems that in the prior art, the position of a moving wheel is limited in an inserting mode, so that the hand of a user is conveniently separated from a measuring device to facilitate measuring work, but it is difficult to guarantee that the hand can be inserted into an inserting groove at a time, and the measuring efficiency is high are solved. And the plugging structure may be damaged.

Description

TECHNICAL FIELD

[0001] The utility model relates to highway surveying device technical field especially relates to a highway design surveying device. BACKGROUND

[0002] The wheel type range finder is one kind of highway design surveying tool, which is mainly designed and manufactured for highway construction distance measurement and is suitable for various ground conditions.

[0003] In the Chinese patent with publication number CN 221706547 U, a highway design surveying device is disclosed, which belongs to the technical field of surveying tools. The highway design surveying device includes a main body and a measuring mechanism. The main body includes a fixed frame, a pair of mounting seats are fixedly installed on one side of the bottom end of the fixed frame, directional wheels are rotatably connected inside the mounting seats, rotating discs are sleeved on one end of the directional wheels, a plurality of insertion slots are formed on the outer side of the rotating discs, a retaining seat is fixedly installed on the upper end of one side of the mounting seat, telescopic rods are inserted inside the retaining seat, insertion blocks are fixedly installed on the bottom end of the telescopic rods, the insertion blocks are connected with the insertion slots, a pair of universal wheels are installed on the other side of the bottom end of the fixed frame, the measuring mechanism includes a pair of mounting frames and an optical encoder, the mounting frames are arranged on the inside of both sides of the fixed frame, and moving frames are embedded and installed at the center of the mounting frames. The utility model can effectively improve the practicability of the highway design surveying device and has high practical value.

[0004] However, the existing technology uses a trolley form when in use, has a large overall volume, is inconvenient to carry, and restricts the position of the moving wheels through insertion to allow the user's hand to be separated from the surveying device for measurement work, but it is difficult to ensure that the insertion structure can be inserted into the insertion slot at one time, which may cause damage to the insertion structure. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the problems in the prior art and provides a highway design surveying device.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0007] A highway design surveying device includes a pushing support and a range-finding wheel rotatably installed in a mounting slot at the bottom of the pushing support. Openings are formed in the lower part of both sides of the pushing support, the openings are communicated with the mounting slot, an elastic assembly is arranged in the opening, the elastic assembly applies a force to the range-finding wheel to make it tightly adhere to the ground, auxiliary supports are installed at the lower end of both sides of the pushing support, auxiliary rollers are installed at the bottom of the auxiliary supports, and the auxiliary rollers are in contact with the ground.

[0008] Preferably, the pushing support is designed in a flat shape, a handle is installed on one side of the top of the pushing support.

[0009] Preferably, the auxiliary support is arranged in Y shape, both ends of the V-shaped part of the auxiliary support are rotatably installed with auxiliary rollers, and the other end is fixedly installed on the bottom of the side wall of the pushing support.

[0010] Preferably, the pushing support and the auxiliary support are hollow, both sides of the lower part of the inner cavity of the pushing support are installed with electric cylinders, one side of the auxiliary roller is installed with a cover, the outer side of the end of the cover away from the auxiliary roller is rotatably connected with the inner side of the end of the auxiliary support away from the pushing support through a bearing, the driving end of the electric cylinder is installed with a push rod, the inner cavity of the auxiliary support is rotatably installed with a lever, one end of the lever extends to the lower part of the inner cavity of the pushing support and is located below the push rod, the end of the lever close to the auxiliary roller is installed with a brake rod, and the brake rod is located in the inner side of the end of the cover away from the auxiliary roller, and the other end of the lever is connected with the bottom of the inner cavity of the pushing support through a first spring.

[0011] Preferably, the cover is arranged in a truncated cone shape, and the outer diameter of the side close to the auxiliary roller is greater than the side away from the auxiliary roller.

[0012] Preferably, the side of the cover away from the auxiliary roller is installed with a pipe, and the pipe is rotatably installed on the inner side of the end of the auxiliary support away from the pushing support through a bearing.

[0013] Preferably, the upper part of the inner cavity of the pushing support is installed with a storage battery, the handle is installed with a controller, and the controller is electrically connected with the two electric cylinders through the storage battery.

[0014] Preferably, the distance measuring wheel comprises an optical encoder installed on one side of the inner part of the mounting groove and a wheel body installed on the input end of the optical encoder, and the center of the other side of the wheel body is rotatably connected with the other side of the inner part of the mounting groove through a rotating shaft.

[0015] Preferably, the elastic assembly comprises a second spring installed on the upper part of the inner part of the opening and a support installed on the bottom of the second spring, the optical encoder is installed on the inner wall of one side of the support, and the rotating shaft is installed on the inner wall of the other side of the support.

[0016] Preferably, the top of the support is installed with a limiting rod, and the second spring is movably sleeved on the outer side of the limiting rod.

[0017] Compared with the prior art, the utility model has the advantages that:

[0018] The utility model discloses on the basis of prior art, the whole device miniaturization is established, and through the elastic component that sets up, when moving the device, under the action of elastic component, make the distance measuring wheel and ground fit, and then push the push support, and let the distance measuring wheel roll along the road surface, complete road survey work, and through the auxiliary gyro wheel of distance measuring wheel both sides, can when push support moves, support the both sides of push support, guarantee the stability of device whole, compared with prior art, the device guarantees the distance measuring precision on the basis of realizing volume miniaturization;

[0019] The utility model discloses through setting up hollow structure with push support and auxiliary support, and setting up electric jar and lever among them, when using, can through the mode of pushing lever, make the brake lever of other end of lever and the cover of gyro wheel inboard abut, realize the brake stop process of gyro wheel, solved the position of mobile wheel of prior art through the mode of insertion and limitation, although convenient for user hand to separate from measuring device to facilitate the measurement work, but difficult to guarantee can insert the slot, possibly lead to the problem of insertion structure damage. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the overall structure schematic diagram of highway design measuring device under the first visual angle that the utility model proposes;

[0021] Figure 2 It is the overall structure schematic diagram of highway design measuring device under the second visual angle that the utility model proposes;

[0022] Figure 3 It is the sectional view of highway design measuring device that the utility model proposes;

[0023] Figure 4 It is Figure 3 It is the local amplification schematic diagram of area A;

[0024] Figure 5 It is Figure 3 It is the local amplification schematic diagram of area B;

[0025] Figure 6 It is the overall structure schematic diagram of highway design measuring device under the third visual angle that the utility model proposes;

[0026] In the drawing: 1, push support;2, installation slot;3, opening;4, auxiliary support;5, auxiliary gyro wheel;6, handle;7, electric jar;8, cover;9, push rod;10, lever;11, brake lever;12, pipe body;13, first spring;14, battery;15, controller;16, photoelectric encoder;17, grating disc;18, wheel body;19, second spring;20, support. DETAILED DESCRIPTION

[0027] It should be noted that all the terms for indicating directionality and positionality in the present application, such as "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "inner", "outer", "top", "low", "transverse", "longitudinal", "center", etc., are only used to explain the relative positional relationship, connection condition, etc. between the components in a certain state (as shown in the drawings), and are only for the convenience of describing the present application, and do not require the present application to be constructed and operated in a specific orientation, so it cannot be understood as a limitation on the present application. In addition, the description of "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features.

[0028] In the description of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0029] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the exemplary description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0030] Referring to Figures 1 to 6 A highway design measuring device, comprising a pushing support 1 and a ranging wheel rotatably installed in a mounting slot 2 at the bottom of the pushing support 1, openings 3 are formed at the lower part of both sides of the pushing support 1, the openings 3 are communicated with the mounting slot 2, an elastic assembly is arranged in the mounting slot 2, the elastic assembly is used for applying a force close to the ground to the ranging wheel, auxiliary supports 4 are installed at the lower end of both sides of the pushing support 1, auxiliary rollers 5 are installed at the bottom of the auxiliary supports 4, the auxiliary rollers 5 are in contact with the ground, and the auxiliary pushing support 1 forms a support with the ground.

[0031] The device is miniaturized as a whole on the basis of the prior art, and when the device is moved, the ranging wheel is attached to the ground under the action of the elastic component, the ranging wheel is rolled along the road surface by pushing the pushing support 1, the road measurement work is completed, and the two sides of the pushing support 1 are supported when the pushing support 1 moves, so that the stability of the device as a whole is ensured. Compared with the prior art, the device ensures the ranging accuracy on the basis of miniaturization.

[0032] As a preferred example of the present application, the pushing support 1 is designed in a flat shape, and a handle 6 is installed on one side of the top of the pushing support 1.

[0033] By flattening the design of the pushing support 1, the overall volume can be optimized, and the ranging function can be met while ensuring the miniaturization of the volume, so that the device is more portable.

[0034] As a preferred example of the present application, the auxiliary support 4 is designed in a Y shape, and auxiliary rollers 5 are rotatably installed at both ends of one side of the V-shaped part of the auxiliary support 4, and the other end is fixedly installed at the bottom of the side wall of the pushing support 1.

[0035] The two auxiliary rollers 5 cooperate with the auxiliary support 4 to form a triangular support for the pushing support 1, which can more evenly share the pressure of the pushing support 1 than a single auxiliary roller 5, so as to avoid tilting or slipping of the ranging wheel due to uneven ground or uneven force. The auxiliary rollers 5 at the V-shaped end form a wide support surface, and the fixed end provides a rigid connection to ensure that the pushing support 1 will not fall over when released.

[0036] As a preferred example of the present application, the pushing support 1 and the auxiliary support 4 are designed in a hollow shape, and the inner cavities of the two are connected, electric cylinders 7 are installed on both sides of the lower part of the inner cavity of the pushing support 1, a cover 8 is installed on one side of the auxiliary roller 5, the cover 8 is designed in a frustum shape, the outer diameter of the side of the cover 8 close to the auxiliary roller 5 is larger than the side away from the auxiliary roller 5, the outer side of the end of the cover 8 away from the auxiliary roller 5 is rotatably connected to the inner side of the end of the auxiliary support 4 away from the pushing support 1, a push rod 9 is installed on the driving end of the electric cylinder 7, a lever 10 is rotatably installed in the inner cavity of the auxiliary support 4, one end of the lever 10 extends to the lower part of the inner cavity of the pushing support 1 and is located below the push rod 9, the middle part of the lever 10 is rotatably connected to the inner cavity of the auxiliary support 4 through a rotating shaft, a brake rod 11 is installed on the end of the lever 10 close to the auxiliary roller 5 and is located inside the end of the cover 8 away from the auxiliary roller 5, and the other end of the lever 10 is connected to the bottom of the inner cavity of the pushing support 1 through a first spring 13.

[0037] In use, the cover 8 can be rotatably installed on one side of the auxiliary support 4. When stopping is needed, the push rod 9 can be driven downward by the electric cylinder 7. The bottom end of the push rod 9 first contacts one end of the lever 10 in the inner cavity of the pushing support 1. Then, in the process of continuous downward movement, the one end of the lever 10 is rotated downward, and the brake lever 11 at the other end of the lever 10 is moved upward until it abuts against the inner wall of the cover 8, thereby stopping the auxiliary roller 5. The process utilizes the principle of friction braking, and the resistance can be gradually increased, so that the auxiliary roller 5 can be smoothly stopped, and the problem of data error caused by sudden stopping of the measuring wheel is solved. The existing technology limits the position of the moving wheel by plugging, which is convenient for the user to release the hand from the measuring device for measurement, but it is difficult to ensure that the plugging structure can be inserted into the slot at one time, which may cause damage to the plugging structure.

[0038] As a preferred example of the present application, the cover 8 is provided with a pipe body 12 away from one side of the auxiliary roller 5. The pipe body 12 is integrally formed with the cover 8 and belongs to a part of the cover 8. The pipe body 12 is rotatably installed on the inner side of the auxiliary support 4 away from one end of the pushing support 1.

[0039] The design of the pipe body 12 facilitates the insertion of the pipe body 12 into the auxiliary support 4, which is more conducive to the installation of the cover 8 and the auxiliary support 4.

[0040] As a preferred example of the present application, a storage battery 14 is installed above the inner cavity of the pushing support 1. A controller 15 is installed on the handle 6. The controller 15 is electrically connected to the two electric cylinders 7 through the storage battery 14.

[0041] Through the controller 15, when stopping is needed, the controller 15 can be pressed to start the electric cylinder 7. The push rod 9 drives the lever 10 to rotate, and the brake lever 11 abuts against the inner wall of the pipe body 12 to stop the auxiliary roller 5. The storage battery 14 is electrically connected to the electric cylinder 7, and the electric cylinder 7 can be powered.

[0042] As a preferred example of the present application, the measuring wheel includes a photoelectric encoder 16 installed on one side inside the installation slot 2 and a wheel body 18 installed on the input end of the photoelectric encoder 16. The center of the other side of the wheel body 18 is rotatably connected to the other side inside the installation slot 2 through a rotating shaft.

[0043] In use, the photoelectric encoder 16 drives the inner grating disc 17 to rotate through the rotation of the wheel body 18. The photoelectric sensor detects the light and dark changes of the grating lines, converts the mechanical displacement into pulse electrical signals, and outputs a certain number of pulses corresponding to a fixed circumference for each rotation, thereby accurately calculating the moving distance. It should be noted that how the photoelectric encoder 16 outputs and displays the signal through the control processor (for example, through the control processor to the display screen installed on the pushing support 1) is a known technology, which will not be described here.

[0044] As a preferred example of this application, the elastic component includes a pair of second springs 19 mounted above the inside of the opening 3 and a support 20 mounted at the bottom of the second springs 19. The photoelectric encoder 16 is mounted on the inner wall of one side of the support 20, and the rotating shaft is mounted on the inner wall of the other side of the support 20. One end of the rotating shaft is fixedly connected to the wheel body 18, and the other end is rotatably mounted on the inner side of the horizontal direction of the other support 20 through a bearing.

[0045] The second spring 19 is mounted on the support 20. The support 20 is pressed downward by the second spring 19, which in turn applies a downward force to the wheel 18, ensuring that the wheel 18 is always vertical and in close contact with the ground.

[0046] As a preferred example of this application, a limit rod is installed on the top of the support 20, and the second spring 19 is movably sleeved on the outside of the limit rod.

[0047] The second spring 19 is fitted on the outside of the limiting rod to ensure that the pressure is always applied axially, eliminating the sway angle that may be generated by traditional free springs.

[0048] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A highway design surveying device, comprising a pusher bracket (1) and a measuring wheel rotatably mounted in a mounting groove (2) at the bottom of the pusher bracket (1), characterized in that: The push bracket (1) has openings (3) on both sides below, and the openings (3) are connected to the mounting groove (2). An elastic component is provided in the opening (3), and the elastic component applies a force to the measuring wheel to keep it in close contact with the ground. An auxiliary bracket (4) is installed at the lower end of both sides of the push bracket (1). An auxiliary roller (5) is installed at the bottom of the auxiliary bracket (4), and the auxiliary roller (5) is in contact with the ground.

2. The highway design surveying device according to claim 1, characterized in that: The push bracket (1) has a flat design and a handle (6) is installed on one side of its top.

3. The highway design surveying device according to claim 1, characterized in that: The auxiliary support (4) is Y-shaped, with auxiliary rollers (5) rotatably installed at both ends of one side of the V-shaped part, and the other end is fixedly installed at the bottom of the side wall of the push support (1).

4. The highway design surveying device according to claim 3, characterized in that: Both the push bracket (1) and the auxiliary bracket (4) are hollow. Electric cylinders (7) are installed on both sides of the lower part of the inner cavity of the push bracket (1). A cover (8) is installed on one side of the auxiliary roller (5). The outer side of the cover (8) away from the auxiliary roller (5) is rotatably connected to the inner side of the auxiliary bracket (4) away from the push bracket (1) through a bearing. A push rod (9) is installed on the drive end of the electric cylinder (7). A lever (10) is rotatably installed in the inner cavity of the auxiliary bracket (4). One end of the lever (10) extends to the lower part of the inner cavity of the push bracket (1) and is located below the push rod (9). A brake rod (11) is installed on the end of the lever (10) near the auxiliary roller (5) and the brake rod (11) is located inside the cover (8). The other end of the lever (10) is connected to the bottom of the inner cavity of the push bracket (1) through a first spring (13).

5. A highway design surveying device according to claim 4, characterized in that: The cover (8) is arranged in a frustum shape, and the outer diameter of the side of the cover (8) closer to the auxiliary roller (5) is larger than that of the side farther away from the auxiliary roller (5).

6. A highway design surveying device according to claim 5, characterized in that: The cover (8) is equipped with a tube (12) on the side away from the auxiliary roller (5). The tube (12) is rotatably mounted on the inner side of the auxiliary bracket (4) away from the push bracket (1) by a bearing.

7. A highway design surveying device according to claim 2, characterized in that: A storage battery (14) is installed above the inner cavity of the push bracket (1), and a controller (15) is installed on the handle (6). The controller (15) is electrically connected to the two electric cylinders (7) via the storage battery (14).

8. A highway design surveying device according to claim 1, characterized in that: The ranging wheel includes a photoelectric encoder (16) installed on one side inside the mounting groove (2) and a wheel body (18) installed at the input end of the photoelectric encoder (16). The center of the other side of the wheel body (18) is rotatably connected to the other side inside the mounting groove (2) through a rotating shaft.

9. A highway design surveying device according to claim 8, characterized in that: The elastic component includes a second spring (19) mounted above the inside of the opening (3) and a support (20) mounted at the bottom of the second spring (19). The photoelectric encoder (16) is mounted on the inner wall of one side of the support (20), and the rotating shaft is mounted on the inner wall of the other side of the support (20).

10. A highway design surveying device according to claim 9, characterized in that: A limit rod is installed on the top of the support (20), and the second spring (19) is movably sleeved on the outside of the limit rod.

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