Global positioning system (GPS) equipment with portable bracket for topographic survey

Abstract

The utility model belongs to the technical field of topographic survey, and particularly relates to a topographic survey GPS device with a portable support, the topographic survey GPS device comprises a placing plate and a GPS device main body, the bottom of the placing plate is provided with an auxiliary device, and the auxiliary device comprises an adjusting unit, a dismounting unit and a fixing unit. According to the topographic survey GPS equipment with the portable bracket, by arranging an adjusting unit, if a placement plate inclines in the topographic survey process and a GPS equipment main body is not horizontal, a first rotary knob is rotated to drive a first threaded rod to rotate, and under the threaded connection of the first threaded rod and a connecting block, the connecting block drives an inserting rod to move up and down along the interior of an outer rod; according to the invention, the support legs are fixed, so that the placement plate is horizontally adjusted, the GPS equipment main body is located at the horizontal position, the topographic measurement precision is improved, and the problems in the background art that the horizontal position of the GPS equipment main body is inconvenient to adjust after the support legs are fixed, the GPS equipment main body is inclined during measurement, and the topographic measurement precision is influenced are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of topographic surveying, in particular to a GPS device for topographic surveying with a portable bracket. Background Art

[0002] Topographic surveying is the work of determining the projection position and elevation of objects and terrain on the earth's surface on the horizontal plane, reducing them at a certain ratio, and drawing them into topographic maps with symbols and annotations. Topographic mapping basically adopts aerial photogrammetry methods, and aerial photographs are mainly used for indoor mapping. However, for topographic maps of smaller areas or those required for engineering construction, flatbed measurement methods are used. GPS equipment is often needed in the process of topographic surveying.

[0003] The existing GPS devices for topographic surveying of this type are mostly integrated structures, which are difficult to disassemble when carried out, making them inconvenient to carry, and bringing inconvenience to the staff's operation. The existing GPS devices for topographic surveying of this type need to be rotated, and when the existing devices are rotated, the manual rotation accuracy is insufficient, which easily causes the GPS devices to rotate slightly by a certain angle, thereby reducing the topographic survey accuracy of the GPS devices.

[0004] By providing a screw rod, a sub-bracket and a sliding block, the support legs are unfolded to ensure the stability of the device, and then the handle is manually rotated to drive the screw rod to rotate. Since the sub-bracket is connected to the threaded surface of the screw rod through the sliding block, the sub-bracket can move upward inside the main bracket, and the sliding groove can limit the movement range of the sub-bracket until the upper support plate and the GPS device body are lifted upward together by the sub-bracket, thereby changing the height of the GPS device body, so that the device can be adjusted in height according to the user's body shape and usage habits, thereby improving the use range of the device. A positioning block, a braking pawl and a ratchet are provided. The GPS device body is manually rotated to make the GPS device body drive the rotating shaft and the ratchet to rotate together. The rotating shaft can support the ratchet. When the ratchet rotates counterclockwise, due to the elastic force of the limit spring, the limit spring pushes the positioning block to move in the direction of the braking pawl, so that the positioning block and the braking pawl are always in contact. At this time, the braking pawl has no braking effect on the ratchet. When the ratchet has a tendency to move in the opposite direction, the braking pawl can brake the ratchet to prevent the GPS device body from rotating slightly in the opposite direction, thereby improving the terrain measurement accuracy of the equipment.

[0005] However, after the support legs are fixed, it is not convenient to adjust the horizontal position of the GPS device body, which causes the GPS device body to tilt during measurement, affecting the accuracy of terrain measurement.

[0006] For this reason, we urgently need to provide a kind of GPS equipment for topographic survey with portable bracket. Utility Model Content

[0007] The purpose of the utility model is to provide a GPS device for topographic measurement with a portable bracket, so as to solve the problem proposed in the above background technology that after the support legs are fixed, it is inconvenient to adjust the horizontal position of the GPS device body, resulting in the GPS device body tilting during measurement, affecting the accuracy of topographic measurement.

[0008] To achieve the above purpose, the utility model provides the following technical solution: a GPS device for topographic measurement with a portable bracket, comprising a placement board and a GPS device body, wherein the GPS device body is installed on the top of the placement board, and an auxiliary device is arranged at the bottom of the placement board.

[0009] The auxiliary device comprises an adjusting unit, a disassembling unit and a fixing unit, wherein the adjusting unit is arranged below the placing plate, the disassembling unit is arranged at the bottom of the placing plate, and the fixing unit is arranged at the top of the placing plate.

[0010] The adjustment unit includes a mounting block, an outer rod, an insertion rod, a support block, a threaded rod, a knob and a connecting block. The mounting block is fixedly installed at the bottom of the placement plate, the upper end of the outer rod is installed inside the mounting block, the insertion rod is installed at the lower end inside the outer rod, the support block is fixedly installed at the upper and lower ends of the side of the outer rod, the threaded rod is rotatably connected to the inside of the upper and lower support blocks, the knob is fixedly installed at the top of the threaded rod, and the connecting block is fixedly installed on the outer surface of the upper end of the insertion rod and extends to the outside of the outer rod.

[0011] Preferably, the disassembly unit includes a bracket, a connecting rod, a disc, a spring and a handle, the bracket is fixedly installed on the left and right sides of the mounting block, the connecting rod is installed inside the bracket and one end extends into the mounting block, the disc is fixedly installed on the outside of the connecting rod, the spring is installed between the disc and the bracket and is located on the outside of the connecting rod, and the handle is fixedly installed on one end of the connecting rod away from the mounting block.

[0012] Preferably, the fixing unit includes a fixing block, a second threaded rod, a fastening block and a second knob, the fixing block is fixedly installed on the left and right sides of the top of the placement plate, the second threaded rod is threadedly connected to the inside of the fixing block, the fastening block is fixedly installed on one end of the second threaded rod, and the second knob is fixedly installed on the end of the fastening block away from the fastening block.

[0013] Preferably, the adjustment units and disassembly units are equidistantly distributed on the bottom of the placement plate, and the outer rod is rotatably connected to the outside of the connecting rod. By setting up three adjustment units and disassembly units, the placement plate is supported to make the placement plate stable and facilitate the adjustment of the horizontal position of the placement plate.

[0014] Preferably, a slide groove having the same width as the connecting block is provided on the outer surface of the lower end of the outer rod, and when the insertion rod moves up and down along the inside of the outer rod, the connecting block can slide along the slide groove to prevent the outer rod from blocking the movement of the connecting block.

[0015] Preferably, the connecting block is provided with an internal thread, and the connecting block is threadedly connected to the outer side of the threaded rod. The threaded rod is driven to rotate by turning the knob. When the threaded rod is threadedly connected to the connecting block, the connecting block drives the insertion rod to slide up and down along the inside of the outer rod, thereby realizing the horizontal adjustment of the placement plate, and then the horizontal adjustment of the GPS device body.

[0016] Preferably, a rubber pad is fixedly mounted on one side of the fastening block, so as to prevent the fastening block from clamping the side of the GPS device body and causing scratches on the surface of the GPS device body.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. The GPS device for topographic measurement with a portable bracket is provided with an adjustment unit. When the placement plate tilts during the topographic measurement process, resulting in the GPS device body being not horizontal, the threaded rod is driven to rotate by turning the knob one. When the threaded rod is threadedly connected to the connecting block, the connecting block drives the insertion rod to move up and down along the inside of the outer rod, thereby adjusting the placement plate horizontally, and then making the GPS device body in a horizontal position, thereby improving the topographic measurement accuracy. This solves the problem in the background technology that after the support legs are fixed, it is inconvenient to adjust the horizontal position of the GPS device body, resulting in the GPS device body tilting during measurement, thereby affecting the topographic measurement accuracy.

[0019] 2. The GPS device for topographic surveying with a portable bracket is provided with a disassembly unit. When carrying the device for traveling, the handle is pulled outward to drive the connecting rod to separate from the outer rod, thereby separating the outer rod from the placement plate, so that the device can be disassembled for easy carrying. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a cross-sectional view of the connection between the outer rod and the insertion rod of the utility model;

[0022] Figure 3 This is a disassembled view of the connection between the placement plate and the disassembly unit of the utility model;

[0023] Figure 4 This is a disassembled view of the connection between the installation block and the disassembly unit of the utility model.

[0024] In the figure: 1. placement plate; 2. GPS device body; 301. mounting block; 302. outer rod; 303. insertion rod; 304. support block; 305. threaded rod one; 306. knob one; 307. connecting block; 401. bracket; 402. connecting rod; 403. disk; 404. spring; 405. handle; 501. fixing block; 502. threaded rod two; 503. fastening block; 504. knob two. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-Figure 4 , the utility model provides a technical solution:

[0027] Embodiment 1:

[0028] A GPS device for topographic surveying with a portable bracket comprises a placement plate 1 and a GPS device body 2. The GPS device body 2 is installed on the top of the placement plate 1, and an auxiliary device is arranged at the bottom of the placement plate 1.

[0029] The auxiliary device includes an adjusting unit, a disassembly unit and a fixing unit. The adjusting unit is arranged below the placement plate 1, and the disassembly unit is arranged at the bottom of the placement plate 1. The adjusting unit and the disassembly unit are equidistantly distributed on the circumference of the bottom of the placement plate 1. The outer rod 302 is rotatably connected to the outside of the connecting rod 402. By setting three adjusting units and disassembly units, the placement plate 1 is supported to make the placement plate 1 stable, and at the same time, it is convenient to adjust the horizontal position of the placement plate 1. The fixing unit is arranged at the top of the placement plate 1.

[0030] The adjusting unit comprises a mounting block 301, an outer rod 302, an insertion rod 303, a support block 304, a threaded rod 305, a knob 306 and a connecting block 307. The mounting block 301 is fixedly mounted on the bottom of the placing plate 1, the upper end of the outer rod 302 is mounted inside the mounting block 301, and the outer surface of the lower end of the outer rod 302 is provided with a slide groove equal to the width of the connecting block 307. When the insertion rod 303 moves up and down along the inner part of the outer rod 302, the connecting block 307 can slide along the slide groove to prevent the outer rod 302 from blocking the movement of the connecting block 307. The insertion rod 303 is mounted on the lower end of the inner part of the outer rod 302, and the support block 304 is fixedly mounted on the upper and lower sides of the outer rod 302 The threaded rod 305 is rotatably connected to the upper and lower support blocks 304, the knob 306 is fixedly installed on the top of the threaded rod 305, the connecting block 307 is fixedly installed on the outer surface of the upper end of the insertion rod 303 and extends to the outside of the outer rod 302, the connecting block 307 is provided with an internal thread, and the connecting block 307 is threadedly connected to the outside of the threaded rod 305, and the threaded rod 305 is driven to rotate by rotating the knob 306. Under the threaded connection between the threaded rod 305 and the connecting block 307, the connecting block 307 drives the insertion rod 303 to slide up and down along the inside of the outer rod 302, thereby realizing the horizontal adjustment of the placement plate 1, and then the horizontal adjustment of the GPS device body 2.

[0031] The fixing unit includes a fixing block 501, a threaded rod 502, a fastening block 503 and a knob 504. The fixing block 501 is fixedly installed on the left and right sides of the top of the placement plate 1, the threaded rod 502 is threadedly connected to the inside of the fixing block 501, the fastening block 503 is fixedly installed on one end of the threaded rod 502, and the knob 504 is fixedly installed on the end of the fastening block 503 away from the fastening block 503.

[0032] Embodiment 2:

[0033] On the basis of Example 1: the disassembly unit includes a bracket 401, a connecting rod 402, a disc 403, a spring 404 and a handle 405, the bracket 401 is fixedly installed on the left and right sides of the mounting block 301, the connecting rod 402 is installed inside the bracket 401 and one end extends to the inside of the mounting block 301, the disc 403 is fixedly installed on the outside of the connecting rod 402, the spring 404 is installed between the disc 403 and the bracket 401 and is located on the outside of the connecting rod 402, and the handle 405 is fixedly installed on one end of the connecting rod 402 away from the mounting block 301. When connecting the outer rod 302 to the mounting block 301, by pulling the handle 405 outward, the distance between the left and right connecting rods 402 is made greater than the width between the outer rods 302, and then the outer rod 302 is sleeved on the outside of the two connecting rods 402, so that the outer rod 302 is connected to the inside of the mounting block 301.

[0034] Embodiment three:

[0035] On the basis of the first embodiment: a rubber pad is fixedly installed on one side of the fastening block 503, so as to prevent the fastening block 503 from clamping the side of the GPS device body 2 and causing scratches on the surface of the GPS device body 2.

[0036] When in use, insert the insertion rod 303 into the ground, then place the GPS device body 2 on the top of the placement plate 1, and then turn the knob 2 504 to drive the threaded rod 2 502 to rotate, so that the fastening block 503 abuts against the side of the GPS device body 2 until the GPS device body 2 is clamped. During the topographic measurement process, if the placement plate 1 tilts, causing the GPS device body 2 to be not horizontal, the threaded rod 1 305 is driven to rotate by turning the knob 1 306. Under the threaded connection between the threaded rod 1 305 and the connecting block 307, the connecting block 307 drives the insertion rod 303 to move up and down along the inside of the outer rod 302, thereby adjusting the placement plate 1 horizontally, and then making the GPS device body 2 in a horizontal position, thereby improving the accuracy of topographic measurement. When carrying the device for travel, the handle 405 is pulled outward to drive the connecting rod 402 to disengage from the outer rod 302, thereby separating the outer rod 302 from the placement plate 1, thereby disassembling the device for easy carrying.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A GPS device for topographic surveying with a portable bracket, comprising a placement board (1) and a GPS device body (2), wherein the GPS device body (2) is mounted on the top of the placement board (1), characterized in that: An auxiliary device is provided at the bottom of the placement plate (1); The auxiliary device comprises an adjustment unit, a disassembly unit and a fixing unit, wherein the adjustment unit is arranged below the placement plate (1), the disassembly unit is arranged at the bottom of the placement plate (1), and the fixing unit is arranged at the top of the placement plate (1); The adjustment unit comprises a mounting block (301), an outer rod (302), an insertion rod (303), a support block (304), a threaded rod (305), a knob (306) and a connection block (307); the mounting block (301) is fixedly mounted on the bottom of the placement plate (1); the upper end of the outer rod (302) is mounted inside the mounting block (301); the insertion rod (303) is mounted on the lower end inside the outer rod (302); the support block (304) is fixedly mounted on the upper and lower ends of the side surface of the outer rod (302); the threaded rod (305) is rotatably connected to the inside of the upper and lower support blocks (304); the knob (306) is fixedly mounted on the top of the threaded rod (305); and the connection block (307) is fixedly mounted on the outer surface of the upper end of the insertion rod (303) and extends to the outside of the outer rod (302).

2. A GPS device for topographic surveying with a portable bracket according to claim 1, characterized in that: The disassembly unit comprises a bracket (401), a connecting rod (402), a disc (403), a spring (404) and a handle (405); the bracket (401) is fixedly mounted on the left and right sides of the mounting block (301); the connecting rod (402) is mounted inside the bracket (401) and one end extends into the mounting block (301); the disc (403) is fixedly mounted on the outside of the connecting rod (402); the spring (404) is mounted between the disc (403) and the bracket (401) and is located on the outside of the connecting rod (402); and the handle (405) is fixedly mounted on one end of the connecting rod (402) away from the mounting block (301).

3. A GPS device for topographic surveying with a portable bracket according to claim 1, characterized in that: The fixing unit comprises a fixing block (501), a second threaded rod (502), a fastening block (503) and a second knob (504); the fixing block (501) is fixedly mounted on the left and right sides of the top of the placement plate (1); the second threaded rod (502) is threadedly connected to the inside of the fixing block (501); the fastening block (503) is fixedly mounted on one end of the second threaded rod (502); and the second knob (504) is fixedly mounted on one end of the fastening block (503) away from the fastening block (503).

4. A GPS device for topographic surveying with a portable bracket according to claim 1, characterized in that: The adjustment unit and the disassembly unit are equidistantly distributed on the bottom of the placement plate (1) and the outer rod (302) is rotatably connected to the outside of the connecting rod (402).

5. A GPS device for topographic surveying with a portable bracket according to claim 1, characterized in that: The outer surface of the lower end of the outer rod (302) is provided with a sliding groove having a width equal to that of the connecting block (307).

6. A GPS device for topographic surveying with a portable bracket according to claim 1, characterized in that: The connection block (307) is provided with an internal thread, and the connection block (307) is threadedly connected to the outer side of the threaded rod (305).

7. A GPS device for topographic surveying with a portable bracket according to claim 3, characterized in that: A rubber pad is fixedly mounted on one side of the fastening block (503).

Images