A height measuring device for geodetic surveying

Abstract

The present utility model provides an elevation measurement device for geodetic surveying, which comprises a measurement device body, a laser generation area located inside the measurement device body for distance measurement, and an infrared sensor located on one side of the laser generation area for receiving reflected laser signals. A horizontal structure is arranged inside the measurement device body, and the horizontal structure includes a horizontal part in a "one" shape structure and a vertical part in a "vertical" shape structure. The horizontal part and the vertical part are staggered in a "cross" shape structure. A protruding part is arranged at the bottom end of the vertical part, and a sliding groove is formed on the bottom end surface of the protruding part. The present utility model has a wide application range and high adjustment efficiency, can bring a stable and efficient adjustment experience to users, and avoid time consumption and measurement errors caused by improper adjustment of the device; at the same time, it improves the adaptability of the device for horizontal determination and expands the application range of the device.

Description

Technical Field

[0001] The utility model belongs to the technical field of elevation measurement devices, and particularly relates to an elevation measurement device for geodetic surveying. Background Art

[0002] A laser rangefinder is a widely used instrument. The current principle of a laser rangefinder is to let a laser emitter emit a pulsed or continuous laser beam irradiated onto the target to be measured. After a certain period of time, the laser beam irradiates the target to be measured and is reflected, and then received by the rangefinder. Multiplying the speed of light by the time and dividing by two can obtain the distance between the rangefinder and the target to be measured.

[0003] However, existing laser rangefinders need to be adapted to a tripod for elevation measurement. However, when using a tripod, it is required that the ground has a certain horizontal plane and cannot have a large slope, which limits the selection of measurement areas. At the same time, the single adjustment distance of the device is long. When the height difference between the device location and the monitoring point is small, it is extremely easy to over-adjust, resulting in time consumption due to height adjustment. Summary of the Utility Model

[0004] In order to solve the above technical problems, the utility model provides an elevation measurement device for geodetic surveying, and the technical solutions adopted are as follows:

[0005] An elevation measurement device for geodetic surveying includes a measurement device body, a laser generation area for distance measurement located inside the measurement device body, and an infrared sensor located on one side of the laser generation area for receiving reflected laser signals. A horizontal structure is arranged inside the measurement device body. The horizontal structure includes a horizontal part in a "one" shape structure and a vertical part in a "vertical" shape structure. The horizontal part and the vertical part are交错 in a "cross" shape structure. A protruding part is arranged at the bottom end of the vertical part. A chute is opened on the bottom end surface of the protruding part. An adapter column is slidably connected in the chute and is limited by the stop edges at both ends of the chute. Rotating plates are respectively axially connected to both side walls of the adapter column, and a spirit level is connected between the two rotating plates. The bottom end of the measurement device body is connected with a bottom support part through a telescopic and rotating structure. A support structure is arranged on the bottom support part. The support structure includes a support leg base part and a support leg telescopic part. The support leg telescopic part realizes telescoping by gear engagement inside the support leg base part.

[0006] Support seats are symmetrically arranged on the upper and lower end surfaces of the horizontal part with the vertical part as the symmetry axis. A shock-absorbing spring is arranged on the end surface of the support seat connected to the horizontal part, and another support seat is arranged on the end surface of the shock-absorbing spring not connected to the support seat.

[0007] The upper end surface of the support seat at the top end of the upper end surface of the transverse part is in contact with the inner upper wall of the measuring device body, and the lower end surface of the support seat at the bottom end of the lower end surface of the transverse part is in contact with the inner lower wall of the measuring device body.

[0008] The interior of the supporting leg base is hollow, an adjustment rack is arranged inside the supporting leg base and fixedly connected to the telescopic part of the supporting leg, after a connecting column passes through the side end surface of the supporting leg base, it engages with the tooth end of the adjustment callback through the meshing gear located on the outer wall of the front end of the connecting column, and an adjustment wheel is arranged at the outer end of the connecting column located at the supporting leg base.

[0009] The bottom end of the adjusting rack is arc-shaped and fits with the inner wall of the supporting leg base where it is located, and the end of the adjusting rack away from the inner wall of the supporting leg base is a plane.

[0010] The telescopic rotating structure includes a telescopic column and rotating bearings located at both ends of the column and rotatably connected to the outer wall of the column, wherein the rotating bearing located at the upper end of the column contacts the bottom end surface of the measuring device body, and the rotating bearing located at the lower end of the column contacts the upper end surface of the bottom support part.

[0011] The rotary bearing is a self-locking bearing, and the telescopic columns are locked by a plum blossom stud passing through the surface of the telescopic columns between every two adjacent columns.

[0012] A display screen is arranged on the surface of the measuring device body, and a buzzer is arranged on the surface of the measuring device body.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The utility model is provided with a measuring device body, and a horizontal structure is provided in the measuring device body. The horizontal structure can slide in a slide groove. When the ground where the device is located is an inclined surface, the connecting column in the horizontal structure slides in the slide groove. If the inclined surface is small, the sliding distance is short, and if the inclined surface is large, the sliding distance is long. After the sliding is completed, the rotating plate can be tilted according to the current state. If the rotating plate does not tilt at the current position, the level meter is in a horizontal state, and the buzzer does not make a sound. However, when the rotating plate tilts at the current position and the level meter is in a non-horizontal state, the buzzer makes a sound to remind the user. A supporting structure is provided, and the supporting structure has a base part and a telescopic part. After the telescopic part penetrates into the base part, it is slidably connected with the adjustment rack located in the base part. When in use, the connecting column is driven by the adjusting wheel to drive the meshing gear and the adjusting gear to generate meshing rotation, and the adjusting gear will slide on the inner wall of the supporting leg base part, driving the supporting leg telescopic part to enter or exit the supporting leg base part. The device is easy and stable to adjust, and can quickly achieve fine-tuning, avoiding the problem that the single adjustment range of the adjustment structure in the existing device is too large and cannot achieve stable positioning. While improving the positioning accuracy of the device, it simplifies the time consumption caused by the adjustment device. At the same time, the use of a tripod is abandoned, and the device is supported by four supporting structures. At the same time, the four supporting structures can be adjusted separately, which improves the scope of application of the device. The utility model has a wide range of applications and high adjustment efficiency, and can bring users a stable and efficient adjustment experience, avoiding time consumption and measurement errors caused by inadequate adjustment of the device; at the same time, it improves the adaptability of the device's horizontal determination and increases the scope of use of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a structural schematic diagram of the measuring device body in the utility model;

[0017] Figure 3 It is a structural schematic diagram of the bottom support portion in the utility model;

[0018] Figure 4 It is a structural schematic diagram of the support leg base part and the support leg telescopic part in the utility model;

[0019] Figure 5 This utility model Figure 4 A schematic diagram of the enlarged structure of part A;

[0020] Figure 6 This utility model Figure 2 Schematic diagram of the enlarged structure of part B in FIG.

[0021] In the figure:

[0022] 1-measuring device body, 2-top cover, 3-handle, 4-infrared sensor, 5-display screen, 6-telescopic rotating structure, 7-bottom support part, 71-bottom plate, 72-fixing hole, 8-support leg base, 9-support leg telescopic part, 10-adjusting wheel, 101-connecting column, 102-meshing gear, 11-laser generating area, 12-horizontal structure, 121-shock absorbing spring, 122-support seat, 123-mounting hole, 124-protrusion, 125-slide groove, 126-connecting column, 127-rotating plate, 128-level meter, 13-adjusting rack, 14-horizontal part, 15-vertical part. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be described clearly and completely below. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0024] Figure 1 It is a structural schematic diagram of the utility model, as shown in the attached Figure 1 As shown, the height measuring device to be protected by the utility model includes a measuring device body 1, a measuring structure for measuring distance arranged in the measuring device body 1, a bottom support part 7 located at the bottom end of the measuring device body 1 for supporting the extension and rotation of the measuring device body 1, and a support leg adjustment part for realizing fine adjustment of the height of the measuring device; the aforementioned support leg adjustment part is coupled to the bottom plate 71 of the bottom support part 7.

[0025] The measuring device body 1 is rectangular, and a cavity is formed inside the measuring device body 1. An intelligent control structure is installed in the cavity. The aforementioned intelligent control structure includes a PLC, a laser generating area 11 that emits laser under the control of the PLC, an infrared sensor 4 that transmits data to the PLC and receives signals, and a buzzer that is controlled by the PLC and issues a prompt when the device is not in a horizontal state; the electronic components all adopt well-known models in the technical field and are not limited here.

[0026] Combination Figure 2, a horizontal structure 12 is arranged in the cavity. The horizontal structure 12 includes a transverse part 14 and a vertical part 15. The transverse part 14 is distributed in a "one" shape, and the vertical part 15 is distributed in a "vertical" shape. The transverse part 14 and the vertical part 15 together form a "cross" structure of the horizontal structure 12. Support seats 122 are respectively arranged on the upper end surface and the lower end surface of the transverse part 14 and on both sides of the vertical part 15. Shock-absorbing springs 121 are respectively arranged on each support seat 122. Another support seat 122 is arranged at the free end of each shock-absorbing spring 121 that is not connected to the support seat 122. The upper end surface of the support seat 122 at the upper most distal end contacts the upper inner wall of the inner cavity; the lower end surface of the support seat 122 at the lower most distal end contacts the lower inner wall of the inner cavity. Both end walls of the transverse part 14 respectively contact the inner side walls of the measuring device body 1.

[0027] As Figure 6 shown, a protruding part 124 is arranged at the lower end of the vertical part 15. A chute 125 is arranged at the bottom end surface of the protruding part 124. An adapter column 126 is connected to the chute 125 in a gravity-sliding manner. Rotating plates 127 are respectively pivotally connected to both sides of the bottom end surface of the adapter column 126. A spirit level 128 is arranged between the bottom end surfaces of the two rotating plates 127. During use, the rotating plates 127 can slide in the chute 125 along with the adapter column 126 to facilitate the use of different terrains. At the same time, stop edges for preventing the adapter column 126 from slipping are arranged at both ends of the chute 125. When the adapter column 126 stops moving, if the spirit level 128 is not in a horizontal state, the rotating plates 127 are in an inclined state. An angle sensor on the side wall of the rotating plate 127 in the inclined direction sends an electrical signal to the PLC, and the PLC then controls the buzzer to emit a beep to prompt the user.

[0028] The laser generating area 11 is arranged on the side wall of the measuring device body 1. The rear end of the laser generating area 11 contacts the mounting hole 123 arranged on the end surface of the transverse part 14 close to the laser generating area 11. An infrared sensor 4 for receiving the reflected laser signal is arranged on the same side wall of the measuring device body 1 and on one side of the laser generating area 11. The front end surface of the infrared sensor 4 protrudes from the outer end surface of the side wall of the measuring device body 1. A display screen 5 is arranged on one side wall of the infrared sensor 4. The display screen 5 is used to display the measurement result of the device.

[0029] During use, the user presses the control switch, and the PLC controls the laser generator in the laser generating area 11 to emit laser. The laser is emitted through the laser generating area 11. After contacting an object, it is reflected by the object and then returns to the device. The returned laser signal is captured by the infrared sensor 4. The PLC calculates the distance from the device to the object through the time of laser reflection, and the device realizes distance measurement. The measured value is displayed on the display screen 5, and the user obtains the distance value through the display screen 5.

[0030] refer to Figure 1 The bottom end of the measuring device body 1 is connected to the bottom support part 7 through a telescopic rotating structure 6. The telescopic rotating structure 6 includes a telescopic column and rotating bearings respectively distributed at the upper end and the lower end of the column. The rotating bearing at the upper end of the column is embedded in the bottom end surface of the measuring device body 1, and the rotating bearing at the lower end of the column is mounted on the bottom support part 7. The rotating bearing is a self-locking bearing. When in use, the user can adjust the height of the measuring device body 1 by telescoping the column, and at the same time, the user can adjust the measuring angle of the measuring device body 1 through the rotating bearing.

[0031] Combination Figure 3 A bottom plate 71 is formed at the bottom end of the bottom support portion 7 , and four fixing holes 72 are opened on the surface of the bottom plate 71 , and a supporting structure is connected to each fixing hole 72 .

[0032] Combination Figure 4 The aforementioned support structure includes a support leg base 8 and a support leg telescopic part 9. The interior of the support leg base 8 is hollow. The front end of the support leg telescopic part 9 penetrates into the interior of the support leg base 8 to form a slidable connection. An adjustment rack 13 is arranged at the top of the support leg telescopic part 9. The lower end surface of the adjustment rack 13 is attached to the support leg base 8. The upper end surface of the adjustment rack 13 is a plane. The surface of the adjustment rack 13 is engaged with a meshing gear 102 through teeth. The meshing gear 102 is sleeved on the outer wall of one end of the connecting column 101. The end of the connecting column 101 that is not connected to the meshing gear 102 penetrates the support leg base 8 and is connected to the adjustment wheel 10 located outside the support leg base 8. The aforementioned adjustment wheel 10, the connecting column 101 and the meshing gear 102 together constitute the adjustment structure of the support structure. A bearing is arranged inside the support leg base 8 and outside the adjustment rack 13, the bottom end surface of the bearing is fixed to the bottom end of the support leg base 8, and the connecting column 101 passes through the bearing and is fixed in the support leg base 8.

[0033] The device contains a battery, and the battery has a charging port. The user can charge the battery by connecting the charging port and an external power supply through a data cable. The battery supplies power to the PLC. The user places the measuring device body 1 on the ground through the supporting structure. At this time, if the measuring device body 1 is not tilted, the level 128 is in a horizontal state, and the PLC will not control the buzzer to make a sound. On the contrary, the level 128 is in a tilted state, driving the rotating plate 127 to tilt toward one end. At this time, the angle sensor located at the tilted end of the rotating plate 127 detects that the angle of the rotating plate 127 has changed, and then sends an electrical signal to the PLC. After receiving the electrical signal, the PLC controls the buzzer to make a sound, prompting the user that the device is tilted. At the same time, the angle sensor sends the electrical signal to the PLC, and the tilt result will be displayed on the display screen 5 in real time through the PLC. The user adjusts the supporting structure at the bottom of the measuring device body 1 according to the data displayed on the display screen 5.

[0034] The supporting structure at the bottom of the measuring device body 1 is set from left to right and from front to back as left one, left two, right one, and right two. Taking right two as an example, when the tilt occurs at right two, the display screen 5 shows right two tilt, and the user turns the adjusting wheel 10, and the adjusting wheel 10 drives the meshing gear 102 to rotate on the adjusting rack 13 through the connecting column 101, and the rack 13 is adjusted to rotate. With the meshing of the adjusting gear 103 and the meshing gear 102, the supporting leg telescopic part 9 gradually enters or exits the supporting leg base part 8, and is level with other supporting structures. When the device is level on the current ground, the rotating plate 127 returns to its original position, the level meter 128 shows level, and the buzzer stops beeping, and it can be used to measure distance by laser.

[0035] In order to facilitate lifting, a top cover 2 is installed on the surface of the measuring device body 1 , and a handle 3 is installed on the surface of the top cover 2 .

[0036] Utilizing the technical solution described in the utility model, or those skilled in the art designing similar technical solutions inspired by the technical solution of the utility model to achieve the above-mentioned technical effects, all fall within the protection scope of the utility model.

Claims

1. A height measuring device for geodetic measurement, comprising a measuring device body (1), a laser generating area (11) located in the measuring device body (1) for distance measurement, and an infrared sensor (4) located on one side of the laser generating area (11) for receiving reflected laser signals, characterized in that: A horizontal structure (12) is provided inside the measuring device body (1). The horizontal structure (12) includes a horizontal part (14) in a "one" - shaped structure and a vertical part (15) in a "vertical bar" - shaped structure. The horizontal part (14) and the vertical part (15) are staggered in a "cross" - shaped structure. A protruding part (124) is provided at the bottom end of the vertical part (15). A sliding groove (125) is formed on the bottom end face of the protruding part (124). An engaging column (126) is slidably connected in the sliding groove (125) and is limited by the retaining edges at both ends of the sliding groove (125). Rotating plates (127) are respectively pivotally connected to the two side walls of the engaging column (126). A spirit level (128) is connected between the two rotating plates (127). A bottom support part (7) is telescopically and rotatably connected to the bottom end of the measuring device body (1) through a telescopic and rotating structure (6). A support structure is provided on the bottom support part (7). The support structure includes a support leg base part (8) and a support leg telescopic part (9). The support leg telescopic part (9) realizes telescoping by gear engagement inside the support leg base part (8).

2. The height measuring device for geodetic surveying according to claim 1, characterized in that: Support seats (122) are symmetrically arranged on the upper and lower end faces of the horizontal part (14) with the vertical part (15) as the axis of symmetry. A shock - absorbing spring (121) is provided on the end face of the support seat (122) connecting the horizontal part (14). Another support seat (122) is provided on the end face of the shock - absorbing spring (121) not connected to the support seat (122).

3. The height measuring device for geodetic surveying according to claim 2, characterized in that: The upper end face of the support seat (122) at the topmost of the upper end face of the horizontal part (14) is in contact with the inner upper wall of the measuring device body (1). The bottom end face of the support seat (122) at the bottommost of the lower end face of the horizontal part (14) is in contact with the inner lower wall of the measuring device body (1).

4. The height measuring device for geodetic surveying according to claim 1, characterized in that: The inside of the support leg base part (8) is hollow. An adjusting rack (13) is slidably arranged inside the support leg base part (8) and is fixedly connected to the support leg telescopic part (9). After a connecting column (101) passes through the side end face of the support leg base part (8), the engaging gear (102) on the outer wall of the front end of the connecting column (101) engages with the tooth end of the adjusting rack (13). An adjusting wheel (10) is provided at the outer end of the connecting column (101) located outside the support leg base part (8).

5. The height measuring device for geodetic surveying according to claim 4, characterized in that: The bottom end of the adjusting rack (13) is arc - shaped and is in contact with the inner side wall of the support leg base part (8) where it is located. The end of the adjusting rack (13) away from the inner wall of the support leg base part (8) is a plane.

6. The height measuring device for geodetic surveying according to claim 1, characterized in that: The telescopic and rotating structure (6) includes a telescopic cylinder, and rotating bearings respectively located at both ends of the cylinder and rotatably connected to the outer wall of the cylinder. Among them, the rotating bearing at the upper end of the cylinder is in contact with the bottom end face of the measuring device body (1), and the rotating bearing at the lower end of the cylinder is in contact with the upper end face of the bottom support part (7).

7. The height measuring device for geodetic surveying according to claim 6, characterized in that: The rotary bearing is a self-locking bearing, and the telescopic columns are locked by a plum blossom stud passing through the surface of the telescopic columns between every two adjacent telescopic columns.

8. The height measuring device for geodetic surveying according to claim 7, characterized in that: A display screen (5) is provided on the surface of the measuring device body (1), and a buzzer is provided on the surface of the measuring device body (1).

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