Portable highway engineering distance measuring device

Abstract

The utility model relates to a portable distance measuring device for highway engineering, which is characterized by comprising a mounting shell, a distance measuring instrument and the like, a motor and a controller are mounted on the mounting shell, the top of a second screw rod is connected with an output shaft of the motor, the bottom of the second screw rod is connected with a driving wheel, the bottom of a first screw rod is connected with a driven wheel, and the driven wheel is meshed with the driving wheel. A connecting sleeve is in threaded connection with the second lead screw, the range finder is slidably connected into the mounting shell through four fixing plates, the connecting sleeve is rotationally connected with a foot stool, an extension assembly for adjusting the height of the mounting shell is arranged in the foot stool, the bottom of the extension assembly is connected with a connecting block, and the bottom of the connecting block is rotationally connected with a movable foot. The device has the advantages that the extension assemblies are connected with the movable feet to form a telescopic adjusting structure, the device can be unfolded downwards to be in contact with the ground and support the mounting shell during measurement, the device can be folded upwards to reduce the occupied space during storage, rapid unfolding and storage of the device are achieved, and finally the purposes of being convenient to carry and transport are achieved.

Description

Technical Field

[0001] This utility model relates to the field of highway engineering technology, and in particular to a portable highway engineering distance measuring device. Background Technology

[0002] Highway distance measurement is a fundamental and crucial task in highway construction and maintenance. Accurate distance measurement not only ensures the accuracy of road design but also effectively guides the construction process, guaranteeing project quality and schedule. With the continuous expansion and upgrading of highway networks, the requirements for distance measurement technology are becoming increasingly stringent, especially in complex terrain and harsh environments. Therefore, developing a portable, accurate, and easy-to-operate highway engineering distance measurement device is of great significance for improving engineering efficiency and reducing construction costs.

[0003] Currently, various distance measuring devices for highway engineering are available on the market, among which the one with announcement number CN216815439U is quite representative. This device features a dedicated storage space to safely store the distance measuring instrument, preventing damage during transportation and storage. Furthermore, it is equipped with a lens cleaning function that automatically cleans the lens before and after measurement, ensuring the accuracy of the measurement data. These features enhance the ease of use and measurement accuracy of the distance measuring device to a certain extent.

[0004] However, when folded up, the device's legs protrude considerably, increasing its size and making it inconvenient to carry and transport. In practical engineering applications, engineers often need to move frequently between different locations, and the device's portability directly impacts work efficiency. Utility Model Content

[0005] The technical problem to be solved by this utility model is that the folding is unreasonable and it is inconvenient to carry. This utility model provides a portable highway engineering distance measuring device, which aims to solve the above-mentioned shortcomings.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: A portable highway engineering distance measuring device, including a mounting shell, a distance measuring instrument, a fixing plate, a first lead screw, a driven wheel, a second lead screw, a driving wheel, a motor, a connecting sleeve, a stand, a guide rod, a controller, an extension assembly, a connecting block, and movable feet. The motor and controller are mounted on the mounting shell, and the controller is wiredly connected to the motor. The first lead screw and the second lead screw are rotatably connected inside the mounting shell. The top of the second lead screw is connected to the output shaft of the motor, and the bottom of the second lead screw is connected to the driving wheel. The bottom of the first lead screw is connected to the driven wheel, and the driven wheel is connected to the driving wheel. The rangefinder is mounted on a housing with meshing wheels and several guide rods. Two fixed plates are connected to the left and right sides of the rangefinder. One fixed plate is threaded to the first lead screw, and the other fixed plates are slidably connected to the guide rods. Connecting sleeves are slidably connected to the other guide rods. Connecting sleeves are threaded to the second lead screw. The rangefinder is slidably connected to the housing through four fixed plates. The four connecting sleeves are divided into left and right groups. The connecting sleeves in the same group are rotatably connected to the legs. An extension component for adjusting the height of the housing is set inside the legs. A connecting block is connected to the bottom of the extension component, and a movable foot is rotatably connected to the bottom of the connecting block.

[0007] A further preferred embodiment of this utility model is as follows: the extension component includes a support rod, a rack, a rotating shaft, an adjusting gear, and a limiting component. The support rod is slidably connected inside the foot, a connecting block is connected to the bottom of the support rod, a rack is provided in the middle of the support rod, a rotating shaft is rotatably connected to the middle of the foot, and adjusting gears are connected to both ends of the rotating shaft. The adjusting gears mesh with the rack, and a limiting component for limiting its rotation is provided inside the rotating shaft.

[0008] A further preferred embodiment of this utility model is as follows: the limiting component includes a ring, a push rod, and a return spring. The ring is connected to the foot, two push rods are slidably connected inside the rotating shaft, and several return springs are provided inside the rotating shaft. The push rods are provided with grooves, and the two ends of the return springs are respectively connected to the grooves of the two push rods. The outer ring of the push rod is slidably connected to the ring.

[0009] A further preferred embodiment of this utility model is: it also includes an indicator card, and the indicator card is provided on the tripod.

[0010] A further preferred embodiment of this utility model is: it also includes a sponge pad, and the part of the top rod that does not contact the ring is connected to the sponge pad.

[0011] A further preferred embodiment of this utility model is: it also includes rollers, and the bottom of the mounting housing is connected to rollers, which are in contact with the legs.

[0012] A further preferred embodiment of this utility model is: it also includes casters, and several casters are connected to the bottom of the mounting housing.

[0013] A further preferred embodiment of this utility model is: it also includes handles, with handles connected to the front and rear sides of the mounting housing.

[0014] Compared with the prior art, the advantages of this utility model are: by connecting the extension component with the movable foot, a telescopic and adjustable structure is formed. During measurement, it can be unfolded downward to contact the ground and support the mounting shell. When stored, it can be folded upward to reduce the space occupied, realizing the rapid unfolding and storage of the device, and ultimately achieving the purpose of easy carrying and transportation; by driving the second lead screw to rotate through the motor, the driving wheel and the driven wheel are engaged, which in turn drives the first lead screw to rotate, so that the rangefinder and the tripod are raised and lowered synchronously, realizing the synchronous folding of the rangefinder and the tripod, and ultimately achieving the purpose of the device being compact and easy to carry. Attached Figure Description

[0015] The present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be construed as limiting the scope of the present invention. Furthermore, unless specifically indicated, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated depictions, and the drawings are not necessarily drawn to scale.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a three-dimensional structural diagram of the mounting housing and rangefinder of this utility model;

[0018] Figure 3 This is a partial structural cross-sectional view of the motor and connecting sleeve of this utility model;

[0019] Figure 4 This is a partial structural cross-sectional view of the rack and adjusting gear of this utility model;

[0020] Figure 5 This is a partial structural cross-sectional view of the push rod and return spring of this utility model.

[0021] In the diagram: 1. Mounting housing; 101. Rangefinder; 2. Fixing plate; 3. First lead screw; 4. Driven wheel; 5. Second lead screw; 6. Drive wheel; 7. Motor; 8. Connecting sleeve; 9. Stand; 10. Guide rod; 11. Controller; 12. Extension assembly; 121. Support rod; 122. Rack; 123. Rotating shaft; 124. Adjusting gear; 125. Ring; 126. Top rod; 127. Return spring; 13. Connecting block; 14. Movable foot; 15. Indicator card; 16. Sponge pad; 17. Roller; 18. Universal wheel; 19. Handle. Detailed Implementation

[0022] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely descriptive and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0023] It should be noted that similar labels in the following figures indicate similar items; therefore, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.

[0024] This embodiment mainly describes the structure of the engineering ranging equipment, as follows:

[0025] A portable highway engineering distance measuring device, such as Figures 1-5 As shown, the system includes a mounting housing 1, a rangefinder 101, a fixing plate 2, a first lead screw 3, a driven wheel 4, a second lead screw 5, a driving wheel 6, a motor 7, a connecting sleeve 8, a stand 9, guide rods 10, a controller 11, an extension assembly 12, a connecting block 13, and movable feet 14. The motor 7 and controller 11 are mounted on the mounting housing 1. The controller 11 controls the rotation direction of the output shaft of the motor 7 to start and stop. The first lead screw 3 and the second lead screw 5 are rotatably connected inside the mounting housing 1. The top of the second lead screw 5 is connected to the output shaft of the motor 7, and the bottom of the second lead screw 5 is connected to the driving wheel 6. The bottom of the first lead screw 3 is connected to the driven wheel 4, which meshes with the driving wheel 6. Six guide rods 10 are connected inside the mounting housing 1, arranged in pairs. The first lead screw 3 and the second lead screw 5 are also in pairs. The rangefinder 101... Two fixing plates 2 are connected to the left and right sides respectively. One fixing plate 2 is threaded to the first lead screw 3. The remaining three fixing plates 2 are slidably connected to the guide rod 10. Connecting sleeves 8 are slidably connected to the other guide rods 10 in the same group. Connecting sleeves 8 are also threaded to the second lead screw 5. Therefore, the guide rod 10 near the middle is connected to the first lead screw 3 with fixing plates 2, and the guide rods 10 on both sides are connected to the second lead screw 5 with connecting sleeves 8. The rangefinder 101 is slidably connected to the mounting housing 1 through four fixing plates 2. The four connecting sleeves 8 are divided into left and right groups. The connecting sleeves 8 in the same group are rotatably connected to the foot 9. An extension component 12 for adjusting the height of the mounting housing 1 is set in the foot 9. A connecting block 13 is connected to the bottom of the extension component 12. A movable foot 14 is rotatably connected to the bottom of the connecting block 13.

[0026] like Figure 3 and Figure 4As shown, the extension assembly 12 includes a support rod 121, a rack 122, a rotating shaft 123, an adjusting gear 124, and a limiting assembly. The support rod 121 is slidably connected inside the leg 9. A connecting block 13 is connected to the bottom of the support rod 121. A rack 122 is provided in the middle of the support rod 121. A rotating shaft 123 is rotatably connected to the middle of the leg 9. Adjusting gears 124 are connected to both ends of the rotating shaft 123. The adjusting gears 124 mesh with the rack 122. A limiting assembly for limiting its rotation is provided inside the rotating shaft 123.

[0027] like Figure 4 and Figure 5 As shown, the limiting assembly includes a ring 125, a push rod 126, and a return spring 127. The ring 125 is connected to the bracket 9. The inner ring of the ring 125 is provided with striped grooves in the front-to-back direction. Two push rods 126 are slidably connected inside the rotating shaft 123, and four return springs 127 are provided inside the rotating shaft 123. The push rods 126 are provided with grooves, and the two ends of the return springs 127 are respectively connected to the grooves of the two push rods 126. The outer ring of the push rod 126 is slidably connected to the ring 125, and the push rod 126 is provided with raised stripes.

[0028] like Figure 4 As shown, it also includes an indicator card 15, which is installed on the tripod 9. The indicator card 15 indicates the correspondence between the rotation direction of the pivot 123 and the upward or downward movement of the support rod 121.

[0029] like Figure 3 As shown, it also includes a sponge pad 16, which is installed on the outer part of the top rod 126 that does not contact the ring 125, to reduce friction and provide a comfortable grip experience.

[0030] like Figure 3 As shown, it also includes a roller 17, which is connected to the bottom of the mounting housing 1 and contacts the tripod 9. When the tripod 9 moves, the roller 17 rolls against the tripod 9 to reduce friction and ensure smooth movement of the tripod 9 during descent.

[0031] like Figure 2 As shown, it also includes casters 18, with four casters 18 connected to the bottom of the mounting housing 1. The surveyor can push the mounting housing 1 and use the flexible steering function of the casters 18 to quickly move the device to the target measurement position.

[0032] like Figure 2 As shown, it also includes handles 19, which are connected to the front and rear sides of the mounting housing 1 to facilitate the measuring personnel to hold and move the device.

[0033] The surveyor holds handle 19 and lowers the entire device from the transport vehicle to the ground, pushing the mounting housing 1. The casters 18 at the bottom facilitate adjustment of the measurement position. Then, the motor 7 is started via controller 11. Motor 7 drives the second lead screw 5 to rotate, which in turn drives the drive wheel 6 to rotate. Through the driven wheel 4 meshing with the drive wheel 6, the first lead screw 3 rotates accordingly. The four first lead screws 3 lift the rangefinder 101 via the fixing plate 2, while the second lead screw 5 lowers the foot 9 via the connecting sleeve 8. When the foot 9 moves downward, it contacts the roller 17 to ensure stable movement. During the downward movement of the foot 9, the movable foot 14 contacts the ground, which then lifts the mounting housing 1, disengaging the casters 18 from the ground. The camera of the rangefinder 101 is also fully extended, at which point distance measurement can be performed.

[0034] If further adjustment of the height of the mounting housing 1 is required, the surveyor holds the top rod 126, which moves towards the center and compresses the return spring 127. At this time, the top rod 126 disengages from the ring 125, allowing the rotating shaft 123 to rotate. The rotating shaft 123 drives the gear to rotate, and through the meshing of the gear rack 122, the support rod 121 slides within the foot 9, adjusting the height of the connecting block 13 and the movable foot 14. Then, the top rod 126 is released, the return spring 127 rebounds, and the two top rods 126 contact the ring 125, with the protrusion and groove engaging. The elastic force of the return spring 127 causes the top rod 126 and the ring 125 to press together, thereby restricting the rotation of the rotating shaft 123, stabilizing the gear rack 122, and maintaining the state of the support rod 121.

[0035] After the measurement is completed, first retract the support rod 121: The surveyor holds the top rod 126 and rotates the shaft 123 to make the support rod 121 slide upward and reset. Then, release the top rod 126 and start the motor 7. The motor 7 reverses, and the first lead screw 3 and the second lead screw 5 rotate in opposite directions. The fixed plate 2 pulls the detector downward and the connecting sleeve 8 pulls the leg 9 upward to complete the retraction and folding.

[0036] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0037] The portable highway engineering distance measuring device provided by this utility model has been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand this utility model and its core ideas. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A portable highway engineering distance measuring device, characterized in that: The system includes a mounting housing (1), a rangefinder (101), a fixing plate (2), a first lead screw (3), a driven wheel (4), a second lead screw (5), a driving wheel (6), a motor (7), a connecting sleeve (8), a stand (9), a guide rod (10), a controller (11), an extension assembly (12), a connecting block (13), and movable feet (14). The motor (7) and the controller (11) are mounted on the mounting housing (1). The controller (11) is wired to the motor (7). The first lead screw (3) and the second lead screw (5) are rotatably connected inside the mounting housing (1). The top of the second lead screw (5) is connected to the output shaft of the motor (7), and the bottom of the second lead screw (5) is connected to the driving wheel (6). The bottom of the first lead screw (3) is connected to the driven wheel (4). The driven wheel (4) meshes with the driving wheel (6). The device is internally connected to several guide rods (10). Two fixing plates (2) are connected to the left and right sides of the rangefinder (101). One fixing plate (2) is threaded to the first lead screw (3). The other fixing plates (2) are slidably connected to the guide rods (10). The other guide rods (10) are slidably connected to the connecting sleeves (8). The second lead screw (5) is threadedly connected to the connecting sleeves (8). The rangefinder (101) is slidably connected to the mounting housing (1) through four fixing plates (2). The four connecting sleeves (8) are divided into left and right groups. The connecting sleeves (8) in the same group are rotatably connected to the legs (9). The legs (9) are equipped with an extension component (12) for adjusting the height of the mounting housing (1). The bottom of the extension component (12) is connected to a connecting block (13). The bottom of the connecting block (13) is rotatably connected to a movable foot (14).

2. The portable highway engineering distance measuring device according to claim 1, characterized in that: The extension assembly (12) includes a support rod (121), a rack (122), a rotating shaft (123), an adjusting gear (124), and a limiting assembly. The support rod (121) is slidably connected inside the leg (9). A connecting block (13) is connected to the bottom of the support rod (121). A rack (122) is provided in the middle of the support rod (121). A rotating shaft (123) is rotatably connected to the middle of the leg (9). Adjusting gears (124) are connected to both ends of the rotating shaft (123). The adjusting gears (124) mesh with the rack (122). A limiting assembly for limiting its rotation is provided inside the rotating shaft (123).

3. The portable highway engineering distance measuring device according to claim 2, characterized in that: The limiting assembly includes a ring (125), a push rod (126), and a return spring (127). The ring (125) is connected to the bracket (9). Two push rods (126) are slidably connected inside the rotating shaft (123), and several return springs (127) are provided inside the rotating shaft (123). The push rod (126) is provided with a groove. The two ends of the return spring (127) are respectively connected to the grooves of the two push rods (126). The outer ring of the push rod (126) is slidably connected to the ring (125).

4. A portable highway engineering distance measuring device according to claim 3, characterized in that: It also includes an indicator card (15), which is installed on the tripod (9).

5. A portable highway engineering distance measuring device according to claim 4, characterized in that: It also includes a sponge pad (16), and the part of the top rod (126) that does not contact the ring (125) is connected to the sponge pad (16).

6. A portable highway engineering distance measuring device according to claim 5, characterized in that: It also includes a roller (17), which is connected to the bottom of the mounting housing (1) and contacts the stand (9).

7. A portable highway engineering distance measuring device according to claim 6, characterized in that: It also includes casters (18), and several casters (18) are connected to the bottom of the mounting housing (1).

8. A portable highway engineering distance measuring device according to claim 7, characterized in that: It also includes handles (19), which are connected to the front and rear sides of the housing (1).

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