Surveying and mapping device for river engineering

Abstract

The invention relates to the technical field of river channel engineering surveying and mapping, in particular to a surveying and mapping device for river channel engineering, and provides the surveying and mapping device for the river channel engineering aiming at solving the problems that an existing triangular support cannot be adjusted in a multi-angle mode, and surveying and mapping accuracy and efficiency are affected. The supporting device comprises a square sleeve capable of moving up and down, the supporting device further comprises a plurality of expanding and supporting seats, and when the square sleeve moves up and down, a structure that the expanding and supporting seats are turned upwards to be folded or turned downwards to be unfolded can be formed; a fixing device matched with the tray is further arranged at the upper end of the supporting disc, the tray can be fixed when the fixing device is opened, the tray can move at multiple angles when the fixing device is closed, the fixing device comprises a cross plate capable of moving up and down, and when the cross plate moves downwards, a structure that the fixing device is closed and the tray can be adjusted at multiple angles can be formed; multi-angle adjustment can be achieved, different requirements can be met in different occasions, and the surveying and mapping accuracy and efficiency are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of river engineering surveying and mapping, and in particular to a surveying and mapping device for river engineering. Background Art

[0002] River engineering surveying refers to the process of measuring and recording parameters such as river morphology, water depth, and water flow. It provides important data for river management and water conservancy project planning, and plays a vital role in protecting river resources, preventing floods, and improving waterways. The main contents of river engineering surveying include plane and elevation control measurement, river topography measurement, and parameters such as the length, width, and depth of the river. The total station is a commonly used device in river engineering surveying. At present, when using the total station for surveying, a tripod is usually used for support and fixation. The existing tripod cannot be adjusted at multiple angles and has great limitations in use, which will reduce the efficiency and accuracy of surveying. Therefore, a surveying device for river engineering is designed to solve the above-mentioned problems. Summary of the invention

[0003] In view of the fact that the existing tripod cannot be adjusted at multiple angles, which affects the surveying accuracy and efficiency, the present invention provides a surveying and mapping device for river engineering, which can be adjusted at multiple angles, can meet different needs in different occasions, improves the surveying accuracy and efficiency, and effectively solves the problems mentioned in the above background technology.

[0004] In order to solve the above problems, the technical solution adopted by the present invention is: A surveying and mapping device for river engineering, including a telescopic rod, a supporting device is provided at the lower end of the telescopic rod, the supporting device includes a square sleeve that can move up and down, and the supporting device also includes a plurality of expansion seats, when the square sleeve moves up and down, it can form a structure in which the plurality of expansion seats are flipped upward and closed or flipped downward and unfolded; the upper end of the telescopic rod is provided with a supporting plate, the upper end of the supporting plate is provided with a tray, and the upper end of the supporting plate is also provided with a fixing device that cooperates with the tray, when the fixing device is opened, the tray can be fixed, when the fixing device is closed, the tray can be moved at multiple angles, the fixing device includes a cross plate that can move up and down, when the cross plate moves downward, it can form a structure in which the fixing device is closed and the tray can be adjusted at multiple angles.

[0005] The telescopic rod includes an outer tube and an inner rod, the inner rod is slidably connected to the inner wall of the outer tube, the square sleeve is slidably connected to the outer surface of the outer tube, the inner walls at the left and right ends of the square sleeve are respectively slidably connected to first bayonet pins, the lower sides of the left and right end surfaces of the outer tube are respectively provided with lower bayonet grooves that match the first bayonet pin, and the upper sides of the left and right end surfaces of the outer tube are respectively provided with upper bayonet grooves that match the first bayonet pin.

[0006] The outer end surfaces of the two first bayonet pins are respectively fixedly connected with first handles, and the outer surfaces of the first bayonet pins are respectively sleeved with tension springs matched with the first handles.

[0007] The expansion support seats are respectively hinged on the lower sides of the front, rear, left and right end faces of the outer cylinder. Four evenly distributed first connecting rods are also hinged on the outer end face of the square sleeve, and the lower ends of the first connecting rods are respectively hinged on the corresponding expansion support seats.

[0008] The cross plate is slidably connected to the inner wall of the upper end of the inner rod, and two second pins are provided at the lower end of the inner rod. The front and rear end surfaces of the outer cylinder are respectively provided with a plurality of second slots that match the second pins. When the cross plate moves downward, the two second pins can move inward and disengage from the second slots.

[0009] A long rod is fixedly connected to the lower end surface of the cross plate, a guide seat is fixedly connected to the lower end surface of the long rod, a second bayonet is slidably connected to the inner walls at the front and rear ends of the inner rod, a first sliding pin is fixedly connected to the inner end surfaces of the two inner rods, and a first inclined groove matching the first sliding pin is respectively opened on the guide seat.

[0010] A ball rod is fixedly connected to the inner wall at the center of the support plate, a ball pin is fixedly connected to the upper end of the ball rod, a recessed seat matching the ball pin is fixedly connected to the center of the lower end surface of the tray, a track plate is also fixedly connected to the lower end surface of the tray, a threaded rod that can move up and down is installed on the support plate, an extension seat is fixedly connected to the upper end surface of the threaded rod, a third sliding pin is fixedly connected to the inner wall of the extension seat, and a long key groove matching the third sliding pin is opened on the track plate.

[0011] The lower end surface of the support plate is slidably connected to a connecting seat, the front end surface of the connecting seat is fixedly connected to an L-shaped seat, the inner wall of the L-shaped seat is fixedly connected to a limiting rod, the threaded rod is slidably connected to the outer surface of the limiting rod, and the upper end surface of the L-shaped seat is slidably connected to an incomplete threaded seat that can move forward and backward and cooperate with the threaded rod.

[0012] A circular ring seat that can move up and down is slidably connected to the outer surface of the club, a connecting ring is rotatably connected to the outer surface of the circular ring seat, an extension plate is provided at the front end of the connecting ring, a vertical seat is fixedly connected to the upper end surface of the incomplete threaded seat, a second sliding pin is fixedly connected to the inner wall of the upper end of the vertical seat, and a second inclined groove matching the second sliding pin is provided on the extension plate.

[0013] The lower end surface of the circular ring seat is fixedly connected with four evenly distributed guide rods which are slidably connected with the support plate. The lower ends of the guide rods are respectively fixedly connected to the cross plate. The outer surface of the ball rod is also covered with a first spring which matches with the circular ring seat.

[0014] Compared with the prior art, the present invention has the following advantages: When in use, by placing the device at a designated position and driving the square sleeve downward, the expansion seat can be flipped downward and unfolded, thereby increasing the contact with the ground and making the device more stable; when storage is needed, the expansion seat can be flipped upward and closed by driving the square sleeve upward, so that the support device is folded and does not take up space when stored; through the cooperation of the set tray and the fixing device, when the cross plate moves downward, the fixing device can be closed, and the tray can be flipped forward and backward or left and right for multi-angle adjustment; when the cross plate moves upward, the fixing device can be opened, and the tray is in a fixed state after adjusting to a suitable angle, has multi-degree-of-freedom adjustment function, adapts to different occasions, and improves the accuracy and efficiency of surveying and mapping. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is the first axonometric view of a surveying and mapping device for river engineering of the present invention.

[0016] Figure 2 This is a second axonometric view of a surveying and mapping device for river engineering of the present invention.

[0017] Figure 3 The present invention is a schematic diagram of the installation of an expansion support base of a river engineering surveying and mapping device.

[0018] Figure 4 This is a schematic diagram of the installation of a track plate of a surveying and mapping device for river engineering according to the present invention.

[0019] Figure 5 The present invention is a cross-sectional view of a recess of a surveying and mapping device for river engineering.

[0020] Figure 6 This is a cross-sectional view of a support plate of a surveying and mapping device for river engineering of the present invention.

[0021] Figure 7 This is a schematic diagram of the installation of a limit rod of a surveying and mapping device for river engineering of the present invention.

[0022] Figure 8 The present invention is a cross-sectional view of a telescopic rod of a surveying and mapping device for river engineering.

[0023] Fig. 9 The present invention is a cross-sectional view of a guide seat of a surveying and mapping device for river engineering.

[0024] Fig.10 This is a schematic diagram of the installation of the first connecting rod of a surveying and mapping device for river engineering of the present invention.

[0025] Fig.11 The present invention is a cross-sectional view of the lower sleeve of a surveying and mapping device for river engineering of the present invention.

[0026] Numbers in the figure: 1-outer cylinder, 2-inner rod, 3-square sleeve, 4-first connecting rod, 5-expansion support seat, 6-first bayonet, 7-first handle, 8-tension spring, 9-support plate, 10-tray, 11-ball rod, 12-ball pin, 13-recess, 14-track plate, 15-third sliding pin, 16-extension seat, 17-threaded rod, 18-L-shaped seat, 19-limiting rod, 20-incomplete threaded seat, 21-vertical seat, 22-second sliding pin, 23-second inclined groove, 24-extension plate, 25-connecting ring, 26-circular ring seat, 27-first spring, 28-guide rod, 29-cross plate, 30-connecting seat, 31-long rod, 32-guide seat, 33-first inclined groove, 34-first sliding pin, 35-support seat, 36-second bayonet, 37-second bayonet groove, 38-lower bayonet groove, 39-upper bayonet groove. DETAILED DESCRIPTION

[0027] The following are specific embodiments of the present invention, and the technical solutions of the present invention are further described in conjunction with the accompanying drawings, but the present invention is not limited to these embodiments.

[0028] like Figure 1-Figure 11 As shown, the present invention provides a surveying and mapping device for river engineering, including a telescopic rod, a supporting device is provided at the lower end of the telescopic rod, the supporting device includes a square sleeve 3 that can move up and down, and the supporting device also includes a plurality of expansion seats 5. When the square sleeve 3 moves up and down, it can constitute a structure in which the plurality of expansion seats 5 are flipped upward and closed or flipped downward and unfolded; a supporting plate 9 is provided at the upper end of the telescopic rod, a tray 10 is provided at the upper end of the supporting plate 9, and a fixing device matched with the tray 10 is also provided at the upper end of the supporting plate 9. When the fixing device is opened, the tray 10 can be fixed, and when the fixing device is closed, the tray 10 can move at multiple angles. The fixing device includes a cross plate 29 that can move up and down, and when the cross plate 29 moves downward, it can constitute a structure in which the fixing device is closed and the tray 10 can be adjusted at multiple angles.

[0029] like Figure 1-Figure 7As shown, the surveying instrument, i.e., the total station or the level, etc., is installed on the upper end of the tray 10, and the telescopic rod can be extended and retracted up and down to adjust the height of the tray 10 and the total station. The telescopic rod can also support and fix the entire device. The total station is a prior art and will not be described in detail; the supporting device can reinforce the supporting telescopic rod. By placing the device at a specified position, the expansion support seat 5 can be turned downward and unfolded by driving the square sleeve 3 to move downward, thereby increasing the contact with the ground and making the device more stable. When it needs to be stored, the expansion support seat 5 can be turned upward and closed by driving the square sleeve 3 to move upward, so that the supporting device is folded and does not occupy space when stored; the supporting plate 9 supports and fixes the tray 10, the fixing device, etc., and through the cooperation of the set tray 10 and the fixing device, when the cross plate 29 moves downward, the fixing device can be closed, and at this time the tray 10 can be turned forward and backward or left and right for multi-angle adjustment, and when the cross plate 29 moves upward, the fixing device can be opened. At this time, the tray 10 is in a fixed state after adjusting the appropriate angle, has a multi-degree-of-freedom adjustment function, is suitable for different occasions, and improves the accuracy and efficiency of surveying and mapping.

[0030] The telescopic rod includes an outer tube 1 and an inner rod 2, the inner rod 2 is slidably connected to the inner wall of the outer tube 1, the square sleeve 3 is slidably connected to the outer surface of the outer tube 1, the inner walls of the left and right ends of the square sleeve 3 are respectively slidably connected with first bayonet pins 6, the lower sides of the left and right end surfaces of the outer tube 1 are respectively provided with lower bayonet grooves 38 that cooperate with the first bayonet pin 6, and the upper sides of the left and right end surfaces of the outer tube 1 are respectively provided with upper bayonet grooves 39 that cooperate with the first bayonet pin 6.

[0031] like Figure 1-Figure 3 , Fig.11 As shown, the inner rod 2 can be slidably connected to the inner wall of the outer tube 1 up and down, that is, the telescopic rod can be telescoped up and down to change the length of use; the square sleeve 3 can be slidably connected to the outer surface of the outer tube 1 up and down, and the first bayonet 6 can be slidably connected to the inner wall of the square sleeve 3 left and right. When the first bayonet 6 is engaged with the lower slot 38 or the upper slot 39, the position of the square sleeve 3 can be fixed, thereby fixing the position of the expansion seat 5. When the first bayonet 6 is engaged with the inner wall of the lower slot 38, the square sleeve 3 is in the lowermost position, and the corresponding expansion seat 5 is in the expanded state. When the first bayonet 6 is engaged with the inner wall of the upper slot 39, the square sleeve 3 is in the uppermost position, and the corresponding expansion seat 5 is in the closed state.

[0032] First handles 7 are fixedly connected to the outer end surfaces of the two first bayonet pins 6 , respectively. Tension springs 8 matching with the first handles 7 are sleeved on the outer surfaces of the first bayonet pins 6 .

[0033] like Fig.11As shown, one end of the tension spring 8 is fixedly connected to the square sleeve 3, and the other end of the tension spring 8 is fixedly connected to the first handle 7. The tension spring 8 always exerts an inward pulling force on the first handle 7 and the first bayonet 6, so that the first bayonet 6 can be stably engaged with the upper slot 39 or the lower slot 38 under normal conditions and will not disengage; when the two first handles 7 are driven to move outward, the first bayonet 6 can be driven to move outward, thereby disengaging the first bayonet 6 from the lower slot 38. At this time, the square sleeve 3 can move up and down, that is, controlling the expansion seat 5 to expand or close.

[0034] The expansion support seat 5 is hinged on the lower sides of the front, rear, left and right end faces of the outer tube 1 respectively. Four evenly distributed first connecting rods 4 are also hinged on the outer end face of the square sleeve 3. The lower ends of the first connecting rods 4 are hinged on the corresponding expansion support seats 5 respectively.

[0035] like Fig.11 As shown, when the square sleeve 3 moves upward, it can drive the upper end of the first connecting rod 4 to move upward, and the lower end of the first connecting rod 4 will drive the expansion seat 5 to flip upward, so that the expansion seat 5 is folded; when the square sleeve 3 moves downward, it can drive the upper end of the first connecting rod 4 to move downward, and the lower end of the first connecting rod 4 will drive the expansion seat 5 to flip downward, so that the expansion seat 5 is unfolded and used.

[0036] The cross plate 29 is slidably connected to the inner wall of the upper end of the inner rod 2, and two second bayonet pins 36 are provided at the lower end of the inner rod 2. The front and rear end surfaces of the outer cylinder 1 are respectively provided with a plurality of second bayonet grooves 37 that cooperate with the second bayonet pins 36. When the cross plate 29 moves downward, a structure can be formed in which the two second bayonet pins 36 move inwardly and disengage from the second bayonet grooves 37.

[0037] like Figure 8-Figure 9 As shown, the cross plate 29 can be slidably connected to the inner wall of the upper end of the inner rod 2 up and down, and the overall height of the fixed telescopic rod can be limited by the engagement of the second pin 36 and the second slot 37. The height of the telescopic rod can be adjusted in multiple gears by setting a plurality of second slots 37. When the cross plate 29 moves downward, the second pin 36 can be moved inward. When the second pin 36 moves inward, it can be disengaged from the second slot 37. At this time, the telescopic rod can be adjusted in height, and the fixing device can be closed to adjust the tray 10 at multiple angles. The height and multiple angles of the tray 10 can be adjusted simultaneously, further improving the adjustment efficiency and speeding up the work process.

[0038] A long rod 31 is fixedly connected to the lower end surface of the cross plate 29, a guide seat 32 is fixedly connected to the lower end surface of the long rod 31, a second bayonet 36 is slidably connected to the inner walls of the front and rear ends of the inner rod 2, first sliding pins 34 are fixedly connected to the inner end surfaces of the two inner rods 2, and first inclined grooves 33 matching the first sliding pins 34 are respectively opened on the guide seats 32.

[0039] like Figure 8-Figure 9As shown, the second bayonet 36 can slide back and forth on the inner wall of the inner rod 2, that is, the two second bayonet pins 36 can move inward or outward; by setting the long rod 31 to be connected with the guide seat 32 and the cross plate 29, when the cross plate 29 moves up and down, the guide seat 32 can be driven to move up and down, and the inner end surfaces of the two second bayonet pins 36 are respectively fixed with support seats 35, and the first sliding pin 34 is fixed to the inner wall of the support seat 35, which is equivalent to the first sliding pin 34 being fixed to the second bayonet pin 36; by setting Under the engagement of the first inclined groove 33 and the first sliding pin 34, when the cross plate 29 and the guide seat 32 move downward, the two first sliding pins 34 can be driven to move inward, and when the first sliding pin 34 moves inward, the support seat 35 and the second bayonet 36 can be driven to move inward. Similarly, when the cross plate 29 and the guide seat 32 move upward, the two first sliding pins 34 can be driven to move outward and the second bayonet 36 can be driven to move outward, thereby controlling the second bayonet 36 to engage or disengage with the second slot 37.

[0040] A ball rod 11 is fixedly connected to the inner wall at the center of the support plate 9, a ball pin 12 is fixedly connected to the upper end of the ball rod 11, a recess 13 matching the ball pin 12 is fixedly connected to the center of the lower end surface of the tray 10, a track plate 14 is also fixedly connected to the lower end surface of the tray 10, a threaded rod 17 that can move up and down is installed on the support plate 9, an extension seat 16 is fixedly connected to the upper end surface of the threaded rod 17, a third sliding pin 15 is fixedly connected to the inner wall of the extension seat 16, and a long key groove matching the third sliding pin 15 is opened on the track plate 14.

[0041] like Figure 4-Figure 6 As shown, the ball rod 11 is used to support and fix the ball pin 12, and the ball pin 12 is installed on the inner wall of the recess 13. Through the cooperation between the ball pin 12 and the recess 13, it is equivalent to that the tray 10 is ball-hinged at the upper end of the ball rod 11, that is, the tray 10 can be flipped and swung forward and backward or left and right through the ball hinge; the installation and shape of the track plate 14, the third sliding pin 15, and the extension seat 16 are as shown Figure 5 As shown, through the engagement of the third sliding pin 15 with the long key groove, when the threaded rod 17 moves up and down, it can drive the extension seat 16 and the third sliding pin 15 to move up and down. When the third sliding pin 15 moves up and down, through the engagement with the long key groove, it can drive the track plate 14 and the tray 10 to flip up or down, thereby adjusting the front and rear flipping angle of the tray 10.

[0042] The lower end surface of the support plate 9 is slidably connected to a connecting seat 30, the front end surface of the connecting seat 30 is fixedly connected to an L-shaped seat 18, the inner wall of the L-shaped seat 18 is fixedly connected to a limiting rod 19, the threaded rod 17 is slidably connected to the outer surface of the limiting rod 19, and the upper end surface of the L-shaped seat 18 is slidably connected to an incomplete threaded seat 20 that can move forward and backward and cooperate with the threaded rod 17.

[0043] like Figure 5-Figure 7As shown, the connecting seat 30 can slide on the inner wall of the lower end of the support plate 9, and the L-shaped seat 18 supports and fixes the limiting rod 19 and the incomplete threaded seat 20. The threaded rod 17 can be slidably connected to the outer surface of the limiting rod 19 up and down, and the limiting rod 19 can limit the threaded rod 17 to move only up and down. The incomplete threaded seat 20 can slide back and forth on the upper end surface of the L-shaped seat 18. When the incomplete threaded seat 20 moves forward to the top position, it can mesh with the threaded rod 17. After the incomplete threaded seat 20 meshes with the threaded rod 17, it can limit the threaded rod 17 from moving upward or downward, so that the threaded rod 17 is fixed and the angle of the tray 10 is fixed; when the incomplete threaded seat 20 moves backward, it can disengage from the threaded rod 17. When the L-shaped seat 18 and the connecting seat 30 move in a circle, the threaded rod 17 and the incomplete threaded seat 20 can be driven to move in a circle. When the threaded rod 17, the third sliding pin 15, the track plate 14 and the like move in a circle, the tray 10 can be driven to rotate. After the tray 10 rotates to a specified angle, the threaded rod 17 is driven up and down to change the deflection direction of the screw tray 10, thereby controlling the forward and backward deflection or left and right deflection of the tray 10, and there is a certain friction force under the sliding connection between the connecting seat 30 and the supporting plate 9, that is, when the L-shaped seat 18 and the connecting seat 30 are not driven to move in a circle, the L-shaped seat 18 and the threaded rod 17 can be stabilized in the specified position, that is, the tray 10 is stabilized at the specified angle.

[0044] A circular ring seat 26 that can move up and down is slidably connected to the outer surface of the club 11, and a connecting ring 25 is rotatably connected to the outer surface of the circular ring seat 26. An extension plate 24 is provided at the front end of the connecting ring 25. A vertical seat 21 is fixedly connected to the upper end surface of the incomplete threaded seat 20. A second sliding pin 22 is fixedly connected to the inner wall of the upper end of the vertical seat 21. A second inclined groove 23 that cooperates with the second sliding pin 22 is opened on the extension plate 24.

[0045] like Figure 6As shown, the annular seat 26 can move up and down on the outer surface of the club 11, and is rotatably connected to the annular seat 26 through the connecting ring 25. When the annular seat 26 moves up and down, it can drive the connecting ring 25 and the extension plate 24 to move up and down, and when the incomplete threaded seat 20, the vertical seat 21, the second sliding pin 22, and the extension plate 24 move in a circular motion, it can also drive the connecting ring 25 to move in a circular motion, and the two movements do not affect each other, and the connecting ring 25 and the extension plate 24 can always keep in mesh with the second sliding pin 22; when the annular seat 26 moves up and down, it can The connecting ring 25 and the extension plate 24 can be driven to move up and down. When the extension plate 24 moves downward, the second sliding pin 22, the vertical seat 21 and the incomplete threaded seat 20 are driven to move backward through the engagement of the second inclined groove 23 and the second sliding pin 22. When the incomplete threaded seat 20 moves backward, it can be disengaged from the threaded rod 17. Similarly, when the extension plate 24 moves upward, it can drive the incomplete threaded seat 20 to move forward. When the incomplete threaded seat 20 moves forward, it can engage with the threaded rod 17 to fix the position of the threaded rod 17.

[0046] Four evenly distributed guide rods 28 slidably connected to the support plate 9 are fixed to the lower end surface of the circular ring seat 26 , and the lower ends of the guide rods 28 are respectively fixed to the cross plate 29 . The outer surface of the ball rod 11 is also covered with a first spring 27 that matches the circular ring seat 26 .

[0047] like Figure 6 As shown, the guide rod 28 passes through the support plate 9 and is slidably connected to the inner wall of the support plate 9 up and down. When the cross plate 29 moves up and down, it can drive the guide rod 28 and the annular seat 26 to move up and down; the first spring 27 always has an upward elastic force on the annular seat 26, even if the annular seat 26 is at the topmost position under normal conditions, the incomplete threaded seat 20 is at the frontmost position under normal conditions and can stably engage with the threaded rod 17 to fix the position of the threaded rod 17; when adjustment is required, by driving the cross plate 29 to move downward, the two second bayonet pins 36 can be driven to move inward and disengage from the second slots 37, and then The incomplete threaded seat 20 can be driven to move backward and disengage from the threaded rod 17. At this time, the height, front and rear deflection or left and right deflection angle of the tray 10 can be adjusted, and multiple degrees of freedom adjustment can be performed simultaneously to improve the adjustment efficiency and speed up the work process; when the cross plate 29 is loosened, the annular seat 26 and the cross plate 29 can be moved upward and reset under the elastic force of the first spring 27, that is, the two second latches 36 move outward again and engage with the second latch grooves 37 to fix the height of the tray 10, and the incomplete threaded seat 20 moves forward to fix the threaded rod 17. At this time, the position of the tray 10 is fixed and can be used normally.

[0048] When the present invention is in use, by placing the device at a designated position and driving the square sleeve 3 to move downward, the expansion seat 5 can be flipped downward and unfolded, thereby increasing the contact with the ground and making the device more stable; when storage is needed, the expansion seat 5 can be flipped upward and closed by driving the square sleeve 3 to move upward, so that the support device is folded and does not take up space when stored; through the cooperation of the set tray 10 and the fixing device, when the cross plate 29 moves downward, the fixing device can be closed. At this time, the tray 10 can be flipped forward and backward or left and right for multi-angle adjustment; when the cross plate 29 moves upward, the fixing device can be opened. At this time, the tray 10 is in a fixed state after adjusting to a suitable angle. It has a multi-degree-of-freedom adjustment function, is adaptable to different occasions, and improves the accuracy and efficiency of surveying and mapping.

Claims

1. A surveying and mapping device for river engineering, comprising a telescopic rod, characterized in that: The lower end of the telescopic rod is provided with a supporting device, the supporting device comprises a square sleeve (3) that can move up and down, the supporting device also comprises a plurality of expansion seats (5), and when the square sleeve (3) moves up and down, a structure in which the plurality of expansion seats (5) are flipped up and closed or flipped down and unfolded is formed; the upper end of the telescopic rod is provided with a supporting plate (9), the upper end of the supporting plate (9) is provided with a tray (10), the upper end of the supporting plate (9) is also provided with a fixing device that matches the tray (10), when the fixing device is opened, the tray (10) can be fixed, when the fixing device is closed, the tray (10) can be moved at multiple angles, the fixing device comprises a cross plate (29) that can move up and down, when the cross plate (29) moves downward, a structure in which the fixing device is closed and the tray (10) can be adjusted at multiple angles is formed.

2. A river engineering surveying and mapping device as claimed in claim 1, characterized in that: The telescopic rod comprises an outer tube (1) and an inner rod (2), the inner rod (2) being slidably connected to the inner wall of the outer tube (1), the square sleeve (3) being slidably connected to the outer surface of the outer tube (1), the inner walls at the left and right ends of the square sleeve (3) being slidably connected to first bayonet pins (6), the lower sides of the left and right end surfaces of the outer tube (1) being respectively provided with lower bayonet grooves (38) matching with the first bayonet pin (6), and the upper sides of the left and right end surfaces of the outer tube (1) being respectively provided with upper bayonet grooves (39) matching with the first bayonet pin (6).

3. A river engineering surveying and mapping device as claimed in claim 2, characterized in that: First handles (7) are respectively fixedly connected to the outer end surfaces of the two first bayonet pins (6), and tension springs (8) matching the first handles (7) are respectively sleeved on the outer surfaces of the first bayonet pins (6).

4. A river engineering surveying and mapping device as claimed in claim 3, characterized in that: The expansion support seat (5) is respectively hinged to the lower sides of the front, rear, left and right end surfaces of the outer cylinder (1), and four evenly distributed first connecting rods (4) are also hinged to the outer end surface of the square sleeve (3), and the lower ends of the first connecting rods (4) are respectively hinged to the corresponding expansion support seats (5).

5. A river engineering surveying and mapping device as claimed in claim 2, characterized in that: The cross plate (29) is slidably connected to the inner wall of the upper end of the inner rod (2); two second latch pins (36) are provided at the lower end of the inner rod (2); and a plurality of second latch grooves (37) matching with the second latch pins (36) are respectively provided on the front and rear end surfaces of the outer cylinder (1); when the cross plate (29) moves downward, the two second latch pins (36) can move inwardly and disengage from the second latch grooves (37).

6. A river engineering surveying and mapping device as claimed in claim 5, characterized in that: A long rod (31) is fixedly connected to the lower end surface of the cross plate (29), a guide seat (32) is fixedly connected to the lower end surface of the long rod (31), a second bayonet (36) is slidably connected to the inner walls of the front and rear ends of the inner rod (2), first sliding pins (34) are fixedly connected to the inner end surfaces of the two inner rods (2), and first inclined grooves (33) matching with the first sliding pins (34) are respectively formed on the guide seats (32).

7. A river engineering surveying and mapping device as claimed in claim 1, characterized in that: A ball rod (11) is fixedly connected to the inner wall at the center of the support plate (9), a ball pin (12) is fixedly connected to the upper end of the ball rod (11), a recess (13) matching with the ball pin (12) is fixedly connected to the center of the lower end surface of the tray (10), a track plate (14) is also fixedly connected to the lower end surface of the tray (10), a threaded rod (17) capable of moving up and down is installed on the support plate (9), an extension seat (16) is fixedly connected to the upper end surface of the threaded rod (17), a third sliding pin (15) is fixedly connected to the inner wall of the extension seat (16), and a long key groove matching with the third sliding pin (15) is opened on the track plate (14).

8. A river engineering surveying and mapping device as claimed in claim 7, characterized in that: The lower end surface of the support plate (9) is slidably connected to a connecting seat (30), the front end surface of the connecting seat (30) is fixedly connected to an L-shaped seat (18), the inner wall of the L-shaped seat (18) is fixedly connected to a limiting rod (19), the threaded rod (17) is slidably connected to the outer surface of the limiting rod (19), and the upper end surface of the L-shaped seat (18) is slidably connected to an incomplete threaded seat (20) that can move forward and backward and cooperates with the threaded rod (17).

9. A river engineering surveying and mapping device as claimed in claim 8, characterized in that: The outer surface of the club (11) is slidably connected to a circular seat (26) capable of moving up and down, the outer surface of the circular seat (26) is rotatably connected to a connecting ring (25), the front end of the connecting ring (25) is provided with an extension plate (24), the upper end surface of the incomplete threaded seat (20) is fixedly connected to a vertical seat (21), the upper inner wall of the vertical seat (21) is fixedly connected to a second sliding pin (22), and the extension plate (24) is provided with a second inclined groove (23) matched with the second sliding pin (22).

10. A river engineering surveying and mapping device as claimed in claim 9, characterized in that: The lower end surface of the annular seat (26) is fixedly connected with four evenly distributed guide rods (28) slidably connected to the support plate (9), and the lower ends of the guide rods (28) are respectively fixedly connected to the cross plate (29). The outer surface of the ball rod (11) is also covered with a first spring (27) that matches the annular seat (26).

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