On-site surveying rod

Abstract

The utility model relates to the related technical field of bridge engineering surveying, in particular to a field surveying rod which comprises a supporting shaft and a thread pushing piece installed on the supporting shaft, and further comprises a supporting assembly installed on the supporting shaft in a sliding mode, and a plurality of sets of telescopic pieces are installed on the supporting assembly in a rotating mode. The telescopic piece is arranged in the radial direction of the supporting assembly. The thread pushing piece is controlled to work by adjusting the rising height of the thread pushing piece, the thread pushing piece drives the supporting assembly to move synchronously when working, the supporting assembly is driven to move synchronously when the thread pushing piece works, the thread pushing piece is driven to move synchronously, and the thread pushing piece is driven to move synchronously when the thread pushing piece is driven to move synchronously. And in the moving process, the telescopic piece is controlled to deflect relative to the supporting assembly through the linkage structure, at the moment, the supporting length of the telescopic piece is increased, the position of the overall gravity center is changed in the moving process of the threaded pushing piece, the supporting radius of the bottom is synchronously changed, and it is guaranteed that the stable state can be kept all the time in the exploration work.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge engineering survey, in particular to a field survey rod. Background Technique

[0002] Bridge survey refers to the survey work carried out in each stage of bridge survey design, construction and operation. To build a bridge, various survey works are required, including: survey, construction survey, completion survey, etc. During the construction process and after the completion of the bridge and opening to traffic, deformation observation work also needs to be carried out. According to different bridge types and different construction methods, the work content and survey methods of the survey are also different. The survey work of the bridge generally includes: measurement of the bridge axis length; construction control survey; positioning of the pier and abutment center; layout of the bottom of the pier and abutment and layout of the beam part, etc. Survey instruments are needed during the survey.

[0003] When the existing survey rod for bridge engineering is in use, first, the survey rod is inserted into the ground, and then the survey instrument is placed on the surface of the survey rod for survey. The survey rod is usually supported and fixed by a tripod to ensure the stability of the survey rod during the survey. However, during the measurement process, the height of the survey rod needs to be adjusted, which causes the overall center of gravity of the survey rod to change, resulting in the situation that the survey rod topples or is difficult to support, and the work efficiency of the measurement is reduced. Content of the Utility Model

[0004] The purpose of the utility model is to provide a field survey rod to solve the problems put forward in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution:

[0006] A field survey rod includes a support shaft and a threaded pusher installed on the support shaft, and further includes a support assembly slidably installed on the support shaft. A plurality of telescopic members are rotatably installed on the support assembly, and the telescopic members are arranged radially along the support assembly;

[0007] A linkage structure connects the telescopic member and the threaded pusher to enable the support assembly to perform work to increase the bottom support radius when the threaded pusher works.

[0008] The field survey rod as described above: The threaded pusher includes a first lead screw, the first lead screw is rotatably installed on the support shaft, a threaded sleeve is threadedly connected to the first lead screw, a prism is fixedly installed at one end of the threaded sleeve away from the first lead screw, a connecting rod is fixedly installed on the threaded sleeve, and the other end of the connecting rod is connected to the support assembly.

[0009] The on-site survey rod as described above: A protective cover is detachably installed on the connecting rod, and the protective cover is arranged along the axial direction of the threaded sleeve.

[0010] The on-site survey rod as described above: The support assembly includes a sleeve, the sleeve is slidably installed on the support shaft, multiple groups of connecting pieces are radially arranged on the sleeve, and the connecting rod is fixedly installed on the sleeve.

[0011] The on-site survey rod as described above: At least one set of strip-shaped limiting chutes are formed on the support shaft, and strip-shaped limiting sliders that are slidably matched with the strip-shaped limiting chutes are formed on the sleeve.

[0012] The on-site survey rod as described above: The telescopic member includes a first support, the first support is rotatably installed on the connecting piece through symmetrically arranged receiving shafts, a second support is slidably installed in the first support and one end penetrates the first support, and a second lead screw is rotatably installed in the first support, and the second lead screw is threadedly connected to the second support.

[0013] The on-site survey rod as described above: The linkage structure includes a rotating shaft, the rotating shaft is rotatably installed on the connecting piece, the rotating shaft is rotationally connected to a transmission shaft rotatably installed on the connecting piece through a second gear set, the transmission shaft is arranged along the axial direction of the receiving shaft, the transmission shaft is rotationally connected to the second lead screw through a bevel gear set, the rotating shaft is rotationally connected to the receiving shaft respectively through symmetrically arranged first gear sets, and a third gear is fixedly installed on one end of the rotating shaft.

[0014] It further includes a convex circle, the convex circle is fixedly installed on the support shaft, and multiple groups of toothed plates meshing with the third gear are arranged on the convex circle.

[0015] Compared with the prior art, the beneficial effects of the present utility model are: By adjusting the rising height of the threaded pushing member, the present utility model controls the operation of the threaded pushing member. When the threaded pushing member operates, it drives the support assembly to move synchronously, and during the movement, the telescopic member is controlled to deflect relative to the support assembly through the linkage structure. At this time, the support length of the telescopic member increases, and the position of the overall center of gravity changes during the movement of the threaded pushing member, so as to realize the synchronous change of the support radius at the bottom and ensure that a stable state can always be maintained during the survey work. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of the protective cover in the on-site survey rod.

[0017] Figure 2 It is a schematic structural diagram of the on-site survey rod.

[0018] Figure 3 It is an exploded decomposition diagram of the threaded pushing member in the on-site survey rod.

[0019] Figure 4 It is a structural schematic diagram of the support assembly and linkage structure in the on-site survey pole.

[0020] Figure 5 It is a structural schematic diagram of the support assembly in the on-site survey pole.

[0021] Figure 6 It is a structural schematic diagram of the telescopic member in the on-site survey pole.

[0022] Figure 7 It is an exploded view of the telescopic member in the on-site survey pole.

[0023] In the figure: 1. protective cover; 2. support shaft; 3. infrared irradiation lamp; 4. sleeve; 5. connecting piece; 6. strip-shaped limit chute; 7. strip-shaped limit slider; 8. first lead screw; 9. threaded sleeve; 10. prism; 11. connecting rod; 12. convex circle; 13. toothed plate; 14. first support; 15. second support; 16. rotating shaft; 17. first gear set; 18. second gear set; 19. receiving shaft; 20. third gear; 21. bevel gear set; 22. second lead screw; 23. transmission shaft. Detailed implementation manners

[0024] The following will describe various exemplary embodiments, features, and aspects of the present application in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements having the same or similar functions. Although various aspects of the embodiments are shown in the drawings, the drawings do not have to be drawn to scale unless otherwise specified.

[0025] The special word "exemplary" here means "serving as an example, embodiment, or illustration". Any embodiment described as "exemplary" here does not have to be construed as superior to or better than other embodiments.

[0026] In addition, for a better description of the present application, numerous specific details are given in the following detailed embodiments. Those skilled in the art should understand that the present application can be implemented without some specific details. In some instances, methods, means, and elements well known to those skilled in the art are not described in detail so as to highlight the gist of the present application.

[0027] Please refer to Figures 1 to 7 , in the embodiment of the present utility model, an on-site survey pole includes a support shaft 2, a threaded pusher, a support assembly, a telescopic member, and a linkage structure.

[0028] Specifically, it includes;

[0029] Please refer to Figure 2 , Figure 3 , Figure 4, a support shaft 2 and a threaded pusher installed on the support shaft 2, further comprising a support assembly slidably installed on the support shaft 2, on which a plurality of telescopic members are rotatably installed, and the telescopic members are arranged radially along the support assembly;

[0030] A linkage structure that connects the telescopic member and the threaded pusher to enable the support assembly to perform work to increase the bottom support radius when the threaded pusher is working.

[0031] Among them, it should be noted that an infrared irradiation lamp 3 is installed at one end of the support shaft 2 close to the ground. A cavity is formed inside the support shaft 2, and the threaded pusher is connected to a driving member communicated with the cavity. The driving member can be a motor. The support structure works by driving the motor. The motor is connected to a control unit, and the motor is controlled by the control unit to rotate a certain angle and then stop automatically. When the motor needs to rotate again, it needs to be controlled by the control unit. The control unit includes, but is not limited to, control buttons and integrated circuit boards installed on the support shaft 2. The method of controlling the motor belongs to a conventional design, and this embodiment does not make specific limitations on this.

[0032] Specifically, in this embodiment, when using the on-site survey rod of the present invention, considering sites at different heights, the height of the threaded pusher rising is adjusted, and the threaded pusher is controlled to work. When the threaded pusher works, it drives the support assembly to move synchronously, and during the movement, the telescopic member is controlled to deflect relative to the support assembly through the linkage structure. At this time, the support length of the telescopic member increases, and the position of the overall center of gravity changes during the movement of the threaded pusher, so as to realize the synchronous change of the bottom support radius and ensure that a stable state can always be maintained during the survey work.

[0033] Please refer to Figure 3 , the threaded pusher includes a first lead screw 8, the first lead screw 8 is rotatably installed on the support shaft 2, a threaded sleeve 9 is threadedly connected to the first lead screw 8, a triangular prism 10 is fixedly installed at one end of the threaded sleeve 9 away from the first lead screw 8, a connecting rod 11 is fixedly installed on the threaded sleeve 9, and the other end of the connecting rod 11 is connected to the support assembly.

[0034] A protective cover 1 is detachably installed on the connecting rod 11, and the protective cover 1 is arranged along the axial direction of the threaded sleeve 9. During transportation, the protective cover 1 can prevent the triangular prism 10 from being collided and damaged.

[0035] Start the driving part inside the support shaft 2 to drive the first lead screw 8 to rotate. When the first lead screw 8 rotates, it drives the threaded sleeve 9 to move linearly along the axial direction of the first lead screw 8. When the threaded sleeve 9 moves, it drives the connecting rod 11 to move synchronously, so that the support assembly can slide relative to the support shaft 2, enabling the overall device to always maintain a balanced state.

[0036] Please refer to Figure 3 and Figure 4 , the support assembly includes a sleeve 4, the sleeve 4 is slidably installed on the support shaft 2, multiple groups of connecting pieces 5 are radially arranged on the sleeve 4, and the connecting rod 11 is fixedly installed on the sleeve 4.

[0037] Preferably, at least one set of strip-shaped limit sliding grooves 6 are formed on the support shaft 2, and strip-shaped limit sliding blocks 7 that are slidably matched with the strip-shaped limit sliding grooves 6 are formed on the sleeve 4.

[0038] It should be noted that when the sleeve 4 moves, the strip-shaped limit sliding block 7 on the sleeve 4 moves synchronously. With the limiting effect of the matching strip-shaped limit sliding groove 6, the strip-shaped limit sliding block 7 is slidably installed in the strip-shaped limit sliding groove 6, so as to realize the sliding of the sleeve 4 relative to the support shaft 2, and does not affect the movement of the strip-shaped limit sliding block 7 with the sleeve 4.

[0039] Please refer to Figure 5 and Figure 6 , the telescopic member includes a first support 14, the first support 14 is rotatably installed on the connecting piece 5 through symmetrically arranged receiving shafts 19, a second support 15 is slidably installed inside the first support 14 and one end penetrates the first support 14, and a second lead screw 22 is rotatably installed inside the first support 14. The second lead screw 22 is threadedly connected to the second support 15.

[0040] The linkage structure includes a rotating shaft 16, the rotating shaft 16 is rotatably installed on the connecting piece 5, the rotating shaft 16 is rotationally connected to a transmission shaft 23 rotatably installed on the connecting piece 5 through a second gear set 18. The transmission shaft 23 is arranged along the axial direction of the receiving shaft 19. The transmission shaft 23 is rotationally connected to the second lead screw 22 through a bevel gear set 21. The rotating shaft 16 is rotationally connected to the receiving shaft 19 through symmetrically arranged first gear sets 17 respectively. A third gear 20 is fixedly installed at one end of the rotating shaft 16

[0041] It further includes a convex circle 12, the convex circle 12 is fixedly installed on the support shaft 2, and multiple groups of toothed plates 13 meshing with the third gear 20 are arranged on the convex circle 12.

[0042] Among them, the first gear set 17 is divided into a full gear and a half gear. The half gear is fixedly installed on the rotating shaft 16. The rotation speed of the full gear directly affects the deflection angle of the first support 14. Therefore, it is necessary to ensure that the transmission ratio between the first gear sets 17 is very small to achieve a limited deflection angle of the first support 14.

[0043] Specifically, when the sleeve 4 moves relative to the support shaft 2, it drives the linkage structure and the telescopic member to move synchronously. At this time, the third gear 20 interacts with the toothed plate 13 to cause the third gear 20 to rotate, thereby driving the rotating shaft 16 to rotate. When the rotating shaft 16 rotates, it drives the receiving shaft 19 to rotate through the first gear set 17. When the receiving shaft 19 rotates, it drives the first support 14 to deflect. At the same time, the rotating shaft 16 drives the transmission shaft 23 to rotate through the second gear set 18. When the transmission shaft 23 rotates, it drives the second lead screw 22 to rotate through the bevel gear set 21. When the second lead screw 22 rotates, it drives the second support 15 to move linearly along the axial direction of the second lead screw 22. The second support 15 slides relative to the first support 14, so that when the position of the sleeve 4 changes, the support height of the bottom wall changes accordingly, realizing that the surveying rod can always maintain a balanced state during the process of height change.

[0044] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0045] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A on-site survey pole, characterized in that, It includes a support shaft (2) and a threaded pusher installed on the support shaft (2), and further includes a support assembly slidably installed on the support shaft (2). A plurality of telescopic members are rotatably installed on the support assembly, and the telescopic members are arranged radially along the support assembly. A linkage structure that connects the telescopic members and the threaded pusher to enable the support assembly to perform work to increase the bottom support radius when the threaded pusher is working.

2. The on-site survey pole according to claim 1, characterized in that, The threaded pusher includes a first lead screw (8) rotatably installed on the support shaft (2). A threaded sleeve (9) is threadedly connected to the first lead screw (8). A prism (10) is fixedly installed at one end of the threaded sleeve (9) away from the first lead screw (8). A connecting rod (11) is fixedly installed on the threaded sleeve (9), and the other end of the connecting rod (11) is connected to the support assembly.

3. The on-site survey pole according to claim 2, characterized in that, A protective cover (1) is detachably installed on the connecting rod (11), and the protective cover (1) is arranged along the axial direction of the threaded sleeve (9).

4. The on-site survey pole according to claim 2, characterized in that, The support assembly includes a sleeve (4) slidably installed on the support shaft (2). A plurality of connecting members (5) are arranged radially on the sleeve (4), and the connecting rod (11) is fixedly installed on the sleeve (4).

5. The on-site survey pole according to claim 4, characterized in that, At least one set of strip-shaped limit sliding grooves (6) is formed on the support shaft (2), and strip-shaped limit sliding blocks (7) that are slidably matched with the strip-shaped limit sliding grooves (6) are formed on the sleeve (4).

6. The on-site survey pole according to claim 4, characterized in that, The telescopic member includes a first support (14) rotatably installed on the connecting member (5) through symmetrically arranged receiving shafts (19). A second support (15) is slidably installed in the first support (14) and one end penetrates through the first support (14). A second lead screw (22) is rotatably installed in the first support (14), and the second lead screw (22) is threadedly connected to the second support (15).

7. The on-site survey pole according to claim 6, characterized in that, The linkage structure includes a rotating shaft (16) rotatably installed on the connecting member (5). The rotating shaft (16) is rotatably connected to a transmission shaft (23) rotatably installed on the connecting member (5) through a second gear set (18). The transmission shaft (23) is arranged along the axial direction of the receiving shaft (19). The transmission shaft (23) is rotatably connected to the second lead screw (22) through a bevel gear set (21). The rotating shaft (16) is rotatably connected to the receiving shaft (19) respectively through symmetrically arranged first gear sets (17). A third gear (20) is fixedly installed at one end of the rotating shaft (16). It further includes a convex circle (12) fixedly installed on the support shaft (2), and a plurality of toothed plates (13) meshing with the third gear (20) are arranged on the convex circle (12).

Images