Surveying pole adjustment fixing device

Abstract

The application discloses a surveying and mapping flagpole adjusting and fixing device, which comprises a support provided with a roller, a bottom plate movably arranged on the support, and a sleeve movably arranged on the bottom plate and used for inserting a flagpole; at least one positioning device is arranged on the support, and a pull rod is movably arranged on one side of the support. The movable bottom plate can keep the front and rear horizontal, the sleeve with adjustable left and right inclination is arranged on the bottom plate, the perpendicularity of the flagpole inserted into the sleeve is ensured, and the pull rod is arranged to facilitate carrying.

Description

Technical Field

[0001] This invention relates to the field of surveying equipment technology, and in particular to a surveying benchmark adjustment and fixing device. Background Technology

[0002] A marker pole is a tool used in surveying engineering to indicate measurement points. It is used to assist surveying instruments in road construction and the construction of large buildings. When using a marker pole, it needs to be inserted into the measurement point and kept straight so that workers can accurately observe the point. Placing the marker pole vertically at the measurement point usually involves manual support by hand. Prolonged support can cause hand fatigue and numbness, leading to pole wobbling and affecting measurement results. Even with the use of a tripod for easier placement, uneven ground and the difficulty in adjusting the existing vertical position of the marker pole can easily cause it to tilt, further affecting the measurement results. The operation is cumbersome and hinders the rapid installation of the marker pole. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a surveying pole adjustment and fixing device that is convenient for both vertical positioning in the horizontal direction and fixed limit in the horizontal direction under various road surface conditions.

[0004] The technical solution of the present invention is as follows:

[0005] A surveying pole adjustment and fixing device includes a bracket with rollers, a base plate movably mounted on the bracket, and a sleeve for inserting the pole adjustablely mounted on the base plate; at least one positioning device is mounted on the bracket, and a pull rod is adjustablely mounted on one side of the bracket.

[0006] With the above structure, the movable base plate does not move with the inclined surface of the support and can always remain horizontal. At the same time, the left and right tilt of the support can be adjusted to the position of the tube sleeve perpendicular to the horizontal plane. In this way, the vertical state of the tube sleeve can be guaranteed in the front, back, left and right directions. The vertically inserted pole of the tube sleeve should also be perpendicular to the horizontal plane in four directions. The positioning device is set to facilitate the positioning of the support in soft soil, and the adjustable pull rod is easy to fold and carry.

[0007] To simplify the structure and facilitate installation, preferably, the bracket has a through hole with openings at the top and bottom, a base plate is provided in the through hole, and a rotating shaft is inserted through the base plate. The two ends of the rotating shaft pass through the through hole wall at the corresponding ends and exit the bracket. Both ends of the rotating shaft that exit the bracket are provided with connecting rods, and each connecting rod is provided with a counterweight.

[0008] To ensure the stability of the base plate's horizontal state, preferably, a fixing plate is provided at the position corresponding to the connecting rod on the bracket, and a limiting groove is provided on each fixing plate. A guide rod is provided at the position corresponding to the limiting groove on each of the two connecting rods, and the guide rod at the corresponding end passes through the limiting groove. A locking nut is screwed to the protruding end of the guide rod, and the locking nut abuts against the outer wall of the fixing plate at the corresponding end to achieve the limiting and fixing of the rotating shaft.

[0009] To facilitate adjustment of the tube sleeve's tilt in the left and right directions and ensure its vertical position, preferably, a first fixing block and a second fixing block are provided on the base plate. A support rod is provided on the first fixing block, and a toothed block arranged along the longitudinal direction of the support is sleeved on the support rod. The tube sleeve is vertically provided at the upper end of the toothed block. A stepper motor is fixed on the second fixing block, and the output end of the stepper motor is provided with transmission teeth that mesh with the lower end of the toothed block.

[0010] To facilitate positioning and simplify the mechanism, preferably, a clearance hole is provided on one side of the bracket. The positioning device includes a bearing embedded in the clearance hole, a connecting plate fixed in the middle of the bearing, a first insert rod and a second insert rod with a handle provided along the circumferential direction on the connecting plate, and a pin hole provided on both insert rods. A positioning pin is horizontally inserted in the pin hole, and the lower end face of the positioning pin abuts against the upper end face of the connecting plate.

[0011] To simplify the installation structure, preferably, a pull rod is hinged to the bracket, and a handle is provided at the non-hinged end of the pull rod. A baffle is provided at the lower end of the bracket corresponding to the position of the pull rod, and a pressure cap is hinged to the baffle. The non-hinged end of the pressure cap is connected and fixed to the baffle by a Velcro fastener.

[0012] For ease of carrying, it is preferable to have a secondary handle on one side of the pull rod.

[0013] To facilitate cleaning of dust at the fixed positioning position and reduce measurement errors, preferably, an electric air pump is provided on one side of the bracket, and an exhaust pipe is provided connected to the air outlet of the electric air pump.

[0014] Beneficial effects: The present invention features a base plate that can maintain a horizontal position in the front and back directions, and a sleeve that can adjust the tilt in the left and right directions on the base plate. While ensuring the verticality of the marker inserted into the sleeve, a pull rod is also provided for easy carrying. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention.

[0016] Figure 2 for Figure 1 Enlarged view of point A in the image.

[0017] Figure 3 for Figure 1 Top view.

[0018] Figure 4 This is a diagram showing the usage status of the base plate. Detailed Implementation

[0019] The invention will now be further described with reference to the accompanying drawings.

[0020] Depend on Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the present invention includes a bracket 1 with rollers 10, a base plate 2 movably mounted on the bracket 1, and a sleeve 20 for inserting a marker pole adjustablely mounted on the base plate 2; at least one positioning device is provided on the bracket 1, and a pull rod 4 is adjustablely mounted on one side of the bracket 1.

[0021] Specifically, the bracket 1 has a through hole with openings at the top and bottom. A base plate 2 is provided in the through hole. A rotating shaft 21 is inserted through the base plate 2. Both ends of the rotating shaft 21 extend out of the bracket 1 from the walls of the through hole at the corresponding ends. Each end of the rotating shaft 21 extending out of the bracket 1 is provided with a connecting rod 22. Each connecting rod 22 is provided with a counterweight 23. A fixing plate 11 is provided on the bracket 1 at the position corresponding to the connecting rod 22. Each fixing plate 11 is provided with a limiting groove 12. Each of the two connecting rods 22 is provided with a guide rod 24 at the position corresponding to the limiting groove 12. The guide rod 24 at the corresponding end extends out of the limiting groove 12. A locking nut 13 is screwed onto the protruding end of the guide rod 24. The locking nut 13 abuts against the outer wall of the fixing plate 11 at the corresponding end to fix and limit the rotating shaft 21.

[0022] A first fixing block 31 and a second fixing block 32 are provided on the base plate 2. A support rod is provided on the first fixing block 31. A toothed block 33 arranged along the longitudinal direction of the bracket 1 is sleeved on the support rod. A tube sleeve 20 is vertically provided at the upper end of the toothed block 33. A stepper motor 34 is fixed on the second fixing block 32. The output end of the stepper motor 34 is provided with a transmission tooth 35 that meshes with the lower end of the toothed block 33.

[0023] A clearance hole is provided on one side of the bracket 1. The positioning device includes a bearing embedded in the clearance hole. A connecting plate 50 is fixed in the middle of the bearing. A first insert rod 51 and a second insert rod 52 with a handle 54 are provided on the connecting plate 50 along the circumferential direction. A pin hole is provided on both insert rods. A positioning pin 53 is horizontally inserted in the pin hole. The lower end face of the positioning pin 53 abuts against the upper end face of the connecting plate 50.

[0024] A pull rod 4 is hinged to the bracket 1. A handle 40 is provided at the non-hinged end of the pull rod 4. A baffle 41 is provided at the lower end of the bracket 1 corresponding to the position of the pull rod 4. A pressure cover 42 is hinged to the baffle 41. The non-hinged end of the pressure cover 42 is connected and fixed to the baffle 41 by a Velcro 43. A secondary handle 44 is provided on one side of the pull rod 4.

[0025] An electric air pump 6 is provided on one side of the bracket 1, and an exhaust pipe 61 is provided in connection with the air outlet of the electric air pump 6.

[0026] The method of using this invention is as follows:

[0027] like Figures 1 to 4 As shown, when not in use, the pull rod 4 abuts against the baffle 41, and the non-hinged end of the pressure cap 42 is connected and fixed to the baffle 41 by the Velcro 43, so that the pull rod 4 and the bracket 1 are kept in a horizontal and folded state. At this time, no marker or insert is inserted, which reduces the weight. The staff can carry it by holding the auxiliary handle 44, which reduces the space occupied and greatly avoids movement interference.

[0028] In use, place the roller 10 on the ground, loosen the Velcro 43, and lift the non-sleeved end of the lever 4 by holding the handle 40 to move the bracket 1. During the movement, due to the gravity of the counterweight 23, the base plate 2, which is mounted on the rotating shaft 21, will always remain in a horizontal position in both the forward and backward directions, regardless of whether the bracket 1 is on an uphill or downhill slope (e.g., ...). Figure 4 (As shown in Figures a and b) After the bracket 1 is moved into place, the locking nut 13 is screwed onto the protruding end of the guide rod 24. The locking nut 13 abuts against the outer wall of the corresponding fixing plate 11 to achieve the limiting and fixing of the rotating shaft 21. At this time, the sleeve 20 remains vertical in the front and rear directions.

[0029] Next, depending on the specific conditions at the destination, if it is necessary to adjust the vertical position in the left and right directions, the stepper motor 34 is started, driving the transmission gear 35 and the meshing toothed block 33 to rotate synchronously. The sleeve 20 also rotates in the same direction as the toothed block 33, and rotates the sleeve 20 to a position that is vertical relative to the left and right directions. In this way, the sleeve 20 is adjusted to a vertical angle in all four directions: front, back, left, and right. At this point, the marker can be inserted into the sleeve 20.

[0030] It should be noted that the aforementioned usage environment is under hardened road surface conditions. If a soft road surface is encountered, there will inevitably be forces transmitted in other directions during use, causing the spatial position of bracket 1 to be unstable. In this case, the verticality of the pole and the reference plane will be unstable. At this time, it is necessary to first remove the positioning pin 53 on the second insertion rod 52 so that the second insertion rod 52 abuts against the ground. Then, use a hammer to strike the second insertion rod 52 and insert it into the road surface. If the insertion at one position is unstable, according to the principle that three points determine a plane, three clearance holes with embedded bearings are set, that is, three second insertion rods 52 are hammered and installed on the ground to achieve the purpose of fixing bracket 1 on soft road surface.

[0031] As the second insert 52 wears down, the resistance to striking into the ground increases. At this point, simply striking the first insert 51 will fix the position. Since the connecting plate 50 is connected to the middle of the bearing, the two inserts are symmetrically arranged, which not only makes it easy to change the striking and inserting position, but also makes it easy to fix the position. After use, simply pull the handle 54 to pull out the corresponding insert.

[0032] It should be noted that since there are many ways to position the roller 10 and most of them are common knowledge, the rotation of the roller 10 can be blocked by a stone or an object of sufficient weight. Since such objects can be easily found during field surveying, this embodiment does not involve the positioning structure of the roller 10, but only the adjustment structure applied to the ground conditions.

[0033] In addition, to further reduce measurement errors, when used on hardened surfaces, the electric air pump 6 can be turned on, and air can be discharged through the exhaust pipe 61 to clean the dust around the roller 10. The stepper motor 34 only requires a battery of appropriate power (not indicated) to start. The battery is placed on the bracket 1 without taking up space or affecting the use of other components. The electric air pump 6 mentioned here is self-powered and does not require an external power source. This is a product of existing technology. It mainly uses the airflow generated by the air pump to remove dust from the road surface through the exhaust pipe 61. This needs to be done manually by holding the exhaust pipe 61, which will not be described in detail here.

Claims

1. A surveying benchmark adjustment and fixing device, characterized in that: It includes a bracket (1) with rollers (10), a base plate (2) is movably provided on the bracket (1), and a sleeve (20) for inserting a marker is adjustablely provided on the base plate (2); at least one positioning device is provided on the bracket (1), and a pull rod (4) is adjustablely provided on one side of the bracket (1).

2. The surveying benchmark adjustment and fixing device as described in claim 1, characterized in that: The bracket (1) is provided with a through hole with openings at the top and bottom. A base plate (2) is provided in the through hole. A rotating shaft (21) is provided through the base plate (2). The two ends of the rotating shaft (21) pass through the wall of the through hole at the corresponding ends and exit the bracket (1). A connecting rod (22) is provided at both ends of the rotating shaft (21) that exits the bracket (1). A counterweight (23) is provided on each of the connecting rods (22).

3. The surveying benchmark adjustment and fixing device as described in claim 2, characterized in that: A fixing plate (11) is provided at the position corresponding to the connecting rod (22) on the bracket (1). A limiting groove (12) is provided on each fixing plate (11). A guide rod (24) is provided at the position corresponding to the limiting groove (12) on the two connecting rods (22). The guide rod (24) at the corresponding end passes through the limiting groove (12). A locking nut (13) is screwed to the protruding end of the guide rod (24). The locking nut (13) abuts against the outer wall of the fixing plate (11) at the corresponding end to achieve the limiting fixation of the rotating shaft (21).

4. The surveying benchmark adjustment and fixing device as described in claim 1, characterized in that: A first fixing block (31) and a second fixing block (32) are provided on the base plate (2). A support rod is provided on the first fixing block (31). A toothed block (33) arranged along the longitudinal direction of the bracket (1) is sleeved on the support rod. A tube sleeve (20) is vertically provided at the upper end of the toothed block (33). A stepper motor (34) is fixed on the second fixing block (32). The output end of the stepper motor (34) is provided with a transmission tooth (35) that meshes with the lower end of the toothed block (33).

5. The surveying benchmark adjustment and fixing device as described in claim 4, characterized in that: A clearance hole is provided on one side of the bracket (1). The positioning device includes a bearing embedded in the clearance hole. A connecting plate (50) is fixed in the middle of the bearing. A first insert rod (51) and a second insert rod (52) with a handle rod (54) are provided on the connecting plate (50) along the circumferential direction. A pin hole is provided on both insert rods. A positioning pin (53) is horizontally inserted in the pin hole. The lower end face of the positioning pin (53) abuts against the upper end face of the connecting plate (50).

6. The surveying benchmark adjustment and fixing device as described in claim 1, characterized in that: A pull rod (4) is hinged to the bracket (1), and a handle (40) is provided at the non-hinged end of the pull rod (4). A baffle (41) is provided at the lower end of the bracket (1) at the position corresponding to the pull rod (4). A pressure cap (42) is hinged to the baffle (41), and the non-hinged end of the pressure cap (42) is connected and fixed to the baffle (41) by a Velcro (43).

7. The surveying benchmark adjustment and fixing device as described in claim 6, characterized in that: A secondary handle (44) is provided on one side of the pull rod (4).

8. The surveying benchmark adjustment and fixing device as described in claim 1, characterized in that: An electric air pump (6) is provided on one side of the bracket (1), and an exhaust pipe (61) is provided in connection with the air outlet of the electric air pump (6).

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