An adjustable engineering surveying device and method of use

Abstract

The application relates to an adjustable engineering surveying device and a use method, and relates to the technical field of engineering surveying. The device comprises a main disc body, a mounting seat rotatably connected to the top of the main disc body, a total station main body mounted on the top of the mounting seat, an adjusting sleeve connected to the bottom of the main disc body, a threaded screw rod rotatably connected to the inner side of the adjusting sleeve, and an annular block threadedly connected to the threaded screw rod. The lateral rod is rotated to drive the threaded screw rod to rotate, the threaded screw rod drives the supporting rod to rotate and expand, the supporting rod rotates to drive the supporting seat to rotate in the opposite direction, the supporting rod is expanded and fixed to synchronously fix the supporting seat, three groups of supporting seats in the same plane support the device, the stability of the device after being fixed is guaranteed, and the supporting seat has a wide contact area with the ground, so that the sinking of the supporting seat under the pressure is reduced.

Description

Technical Field

[0001] This invention relates to an adjustable engineering measurement device and its usage method, belonging to the field of engineering measurement technology. Background Technology

[0002] Engineering surveying is a general term for all kinds of surveying and measurement work throughout the entire life cycle of engineering construction. Its core is to obtain geographic information such as spatial location, shape, size, elevation, and deformation of the engineering area through professional instruments and technologies, so as to provide accurate measurement data and technical support for the planning and design, construction, completion acceptance, operation and maintenance of the project. Its core characteristics are strong targeting, accuracy requirements adapted to the type of project, and close integration with the construction process. Different projects have significantly different requirements for measurement accuracy, and total stations are required during the construction process.

[0003] Current total stations require a tripod for use. Tripods typically support the total station with three sets of feet. Because the base of the tripod is usually sharp, the feet can gradually sink into the ground under pressure during measurement, causing the total station's angle to shift and resulting in inaccurate measurement data. Furthermore, the lack of an angle adjustment mechanism on the tripod means that shims are needed to adjust the angle during leveling. While some tripod models do have an angle adjustment mechanism, adjusting each support plate individually is cumbersome. Moreover, adjusting each plate separately can cause the entire support frame to tilt, increasing the total station's leveling time. Summary of the Invention

[0004] The purpose of this invention is to provide an adjustable engineering measurement device and its usage method. By rotating the lateral rod, the threaded screw is driven to rotate, which in turn drives the support rod to unfold and causes the support seat to rotate in the opposite direction and be fixed. The device is supported by three sets of support seats on the same plane. This solves the problems in the prior art where the sharp bottom of the total station tripod causes the support feet to easily sink into the ground, resulting in angle deviation of the total station and deviation of measurement data, and the lack of an angle adjustment structure on the tripod makes the leveling operation cumbersome and requires the adjustment of shims.

[0005] To solve the above-mentioned technical problems, the present invention is implemented using the following technical solution.

[0006] In a first aspect, the present invention provides an adjustable engineering surveying device, comprising a main body, a mounting base rotatably connected to the top of the main body, a total station body mounted on the mounting base, an adjusting sleeve connected to the bottom of the main body, a threaded screw rotatably connected to the inner side of the adjusting sleeve, an annular block threadedly connected to the threaded screw and slidably connected to the adjusting sleeve, a first connecting rod hinged to the outer wall of the annular block, and a support rod hinged to the other end of the first connecting rod, a support base rotatably connected to the bottom end of the support rod, and the bottom of the main body being located at the adjusting sleeve. The sleeve has four sets of rotating rods connected to it, and the rotating rods are rotatably connected to the support rods. Each rotating rod is sleeved with a main gear, and the bottom of the main gear is meshed with a transmission gear, which is connected to the support rod. The transmission gear is connected to the support base shaft via a transmission belt. The mounting frame is rotatably connected with a lateral rod, which is connected to a threaded screw via a bevel gear set. An adjustment assembly is located above the main plate and inside the mounting frame. A limiting assembly is also located above the main plate and inside the mounting frame.

[0007] Furthermore, the adjusting assembly has an adjusting rod rotatably connected to the inner side of the mounting frame. The adjusting rod is sleeved with an adjusting gear. The adjusting rod is connected to an adjusting screw via a bevel gear set. The adjusting screw is threadedly connected to an adjusting block, and the adjusting block is slidably connected to the mounting frame. A slider is slidably connected to the bottom of the mounting base, and the slider is rotatably connected to the adjusting block. A partition is connected to the inner side of the mounting frame. A stop gear is rotatably connected to the bottom of the partition via a hollow bearing. A sliding sleeve is slidably connected to the frame body of the mounting frame. A fixed rod is slidably connected to the inner side of the sliding sleeve. A second connecting rod is hinged to the tail end of the fixed rod, and a fixed block is hinged to the other end of the second connecting rod. The fixed block is slidably connected to the sliding sleeve.

[0008] Furthermore, the limiting component has a limiting block slidably connected to the inner side of the mounting frame. The limiting block is connected to a limiting spring, and the other end of the limiting spring is connected to the inner wall of the mounting frame. A guide rod is connected to the inner side of the mounting frame, and the guide rod passes through the central hole of the limiting spring and is slidably connected to the limiting block. Two sets of curved protrusions are provided above the limiting block, and the two sets of curved protrusions are respectively in contact with the sliding sleeve and the lateral rod.

[0009] Furthermore, the support base is provided in three sets, and the bottom of each of the three sets of support bases is provided with anti-slip rubber.

[0010] Furthermore, the fixed rod is connected to a sliding plate, and the sliding plate is slidably connected to the sliding sleeve. A return spring is connected to the inner side of the sliding sleeve, and the other end of the return spring is connected to the sliding plate.

[0011] Furthermore, a fixing groove is provided on the inner side of the gear, and the fixing block is located in the fixing groove.

[0012] Furthermore, the adjusting gears are provided in three sets with sequentially increasing modules, and the gear shifting gears are also provided in three sets with sequentially increasing modules. The three sets of adjusting gears are meshed with the three sets of gear shifting gears, and a rubber ring is provided on the inner side of the gear shifting gears.

[0013] Furthermore, the limiting block is provided with a pulling protrusion, and the pulling protrusion is slidably connected to the mounting frame, and a limiting rod is rotatably connected to the outside of the mounting frame.

[0014] In a second aspect, the present invention provides a method for using an adjustable engineering measuring device, applicable to the adjustable engineering measuring device described in the first aspect, comprising: Rotate the limiting rod upward to separate it from the sliding protrusion of the limiting block. Pull the sliding protrusion to move it to the other side of the limiting rod. Then rotate the limiting rod in the opposite direction to make it fit with the sliding protrusion again. Release the limiting of the side rod and the sliding sleeve. Rotate the side rod. The rotation of the side rod will drive the threaded screw to rotate. The rotation of the threaded screw will drive the ring block to move vertically. The downward movement of the ring block will drive the first connecting rod to rotate. The rotation of the first connecting rod will push the support rod to rotate. During the rotation of the support rod, the inner transmission gear will rotate, and the rotation of the transmission gear will drive the support seat to rotate. The rotation direction of the support seat is opposite to that of the support rod, and the rotation angle of the support seat is the same as that of the support rod. The support seat is always parallel to the ground during the rotation of the support rod. The entire device is supported by three sets of unfolded support seats. After the support base is unfolded, rotate the sliding sleeve. The rotation of the sliding sleeve drives the fixed rod to rotate, which in turn drives the second connecting rod to rotate. The rotation of the second connecting rod drives the fixed block to rotate, which in turn drives the gear shift to rotate. The rotation of the gear shift to rotate the adjusting gear, which in turn drives the adjusting rod to rotate, which in turn drives the adjusting screw to rotate. The rotation of the adjusting screw to rotate the adjusting block to move vertically, which in turn adjusts the angle of the mounting base. After the mounting bracket angle is adjusted significantly, pull the sliding plate to move the fixing rod horizontally. The horizontal movement of the fixing rod will cause the fixing block to move. The fixed block will separate from the fixing groove inside the first set of gears. Then, while keeping the sliding plate pulled, push the sliding sleeve so that the sliding sleeve moves and causes the fixing block to move. After the fixing block moves into the inside of the second set of gears, release the sliding plate. The sliding sleeve will enter the fixing groove inside the second set of gears under the action of the return spring. Then, rotate the sliding sleeve again to make a small adjustment to the mounting bracket angle. By embedding the fixing block into the third set of gears, the angle of the mounting bracket can be adjusted. After the mounting base is leveled, rotate the limiting rod to separate from the sliding protrusion. The limiting rod will be affected by the limiting spring and re-fit with the side rod and sliding sleeve. The limiting block fixes the side rod and sliding sleeve.

[0015] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: 1. This invention can drive the threaded screw to rotate by rotating the lateral rod. The rotation of the threaded screw drives the support rod to rotate and unfold. During the rotation of the support rod, the support seat will rotate in the opposite direction. After the support rod is unfolded and fixed, the support seat is fixed synchronously. The device is supported by three sets of support seats on the same plane, which ensures the stability of the device after it is fixed. In addition, since the contact area between the support seat and the ground is large, the occurrence of the support seat sinking due to pressure is reduced.

[0016] 2. This invention drives the shift gear to rotate by rotating the sliding sleeve. The rotation of the shift gear drives the adjustment gear to rotate. The rotation of the adjustment gear can adjust the rotation angle of the mounting base. Furthermore, the rotation amplitude can be adjusted by stretching the sliding sleeve. This allows the operator to adjust the angle of the total station body more precisely and improves the leveling efficiency.

[0017] 3. The present invention can limit the movement of the lateral rod and the sliding sleeve by setting a limit block, which reduces the possibility of the lateral rod and the sliding sleeve becoming loose due to external influences. Moreover, the limit can be quickly released by pulling the limit block, which makes it convenient for the staff to rotate the lateral rod and the sliding sleeve to adjust the device. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main structure of an adjustable engineering measuring device provided in an embodiment of the present invention; Figure 2 This is provided by the embodiments of the present invention. Figure 1 A schematic diagram of the enlarged structure at point A in the middle; Figure 3 This is provided by the embodiments of the present invention. Figure 1 A schematic diagram of the enlarged structure at point B; Figure 4 This is a schematic diagram of the top surface structure of the main disk body provided in an embodiment of the present invention; Figure 5 This is a schematic diagram of the side structure of the main disk body provided in an embodiment of the present invention; Figure 6 This is a schematic diagram of the inner structure of the mounting frame provided in an embodiment of the present invention; Figure 7 This is a schematic diagram of the inner top end structure of the sliding sleeve provided in an embodiment of the present invention; Figure 8 This is a schematic diagram of the inner tail end structure of the sliding sleeve provided in an embodiment of the present invention; Figure 9 This is a schematic diagram of the top surface structure of the adjusting sleeve provided in an embodiment of the present invention; Figure 10 This is a schematic diagram of the unfolded support rod structure provided in an embodiment of the present invention.

[0019] Explanation of reference numerals in the attached diagram: 1. Main panel; 2. Mounting base; 3. Total station body; 4. Mounting frame; 5. Adjusting sleeve; 6. Threaded screw; 7. Annular block; 8. First connecting rod; 9. Support rod; 10. Rotating rod; 11. Main gear; 12. Transmission gear; 13. Support base; 14. Lateral rod; 15. Adjusting assembly; 151. Adjusting rod; 152. Adjusting gear; 153. Adjusting screw; 154. Adjusting block; 155. Stop gear; 156. Sliding sleeve; 157. Fixed rod; 158. Second connecting rod; 159. Fixed block; 16. Limiting assembly; 161. Limiting block; 162. Limiting spring. Detailed Implementation

[0020] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the embodiments of the present invention and the specific features in the embodiments are detailed descriptions of the technical solution of the present invention, rather than limitations thereof. In the absence of conflict, the embodiments of the present invention and the technical features in the embodiments can be combined with each other. Example

[0021] like Figures 1-10As shown in the figure, this embodiment introduces an adjustable engineering surveying device, including a main plate 1, a mounting base 2 rotatably connected to the top of the main plate 1, a total station body 3 mounted on the mounting base 2, an adjusting sleeve 5 connected to the bottom of the main plate 1, a threaded screw 6 rotatably connected to the inner side of the adjusting sleeve 5, an annular block 7 threadedly connected to the threaded screw 6, and the annular block 7 slidably connected to the adjusting sleeve 5, a first connecting rod 8 hinged to the outer wall of the annular block 7, and a support rod 9 hinged to the other end of the first connecting rod 8, a support base 13 rotatably connected to the bottom end of the support rod 9, four sets of rotating rods 10 connected to the bottom of the main plate 1 at the adjusting sleeve 5, and the rotating rods 10 rotatably connected to the support rods 9, a main gear 11 sleeved on the rotating rod 10, and a transmission gear meshing at the bottom of the main gear 11. Wheel 12, and transmission gear 12 is connected to support rod 9. Transmission gear 12 is connected to the shaft of support seat 13 via transmission belt. The frame of mounting frame 4 is rotatably connected to side rod 14, and side rod 14 is connected to threaded screw 6 via bevel gear set. Rotating side rod 14 can drive threaded screw 6 to rotate. The rotation of threaded screw 6 drives support rod 9 to rotate and unfold. During the rotation of support rod 9, support seat 13 will rotate in the opposite direction. After support rod 9 is unfolded and fixed, support seat 13 is fixed synchronously. The device is supported by three sets of support seats 13 on the same plane to ensure the stability of the device after it is fixed. Since the contact area between support seat 13 and the ground is large, the situation of support seat 13 sinking due to pressure is reduced. Adjustment component 15 is located above the main body 1 and inside the mounting frame 4; Limiting component 16 is located above the main body 1 and inside the mounting frame 4.

[0022] In one embodiment of the present invention, the adjusting assembly 15 has an adjusting rod 151 rotatably connected to the inner side of the mounting frame 4. The adjusting rod 151 is sleeved with an adjusting gear 152. The adjusting rod 151 is connected to an adjusting screw 153 via a bevel gear set. The adjusting screw 153 is threadedly connected to an adjusting block 154, and the adjusting block 154 is slidably connected to the mounting frame 4. A slider is slidably connected to the bottom of the mounting base 2, and the slider is rotatably connected to the adjusting block 154. A partition is connected to the inner side of the mounting frame 4. A stop gear 155 is rotatably connected to the bottom of the partition via a hollow bearing. A sliding sleeve 156 is slidably connected to the frame of the mounting frame 4. A fixing rod 157 is slidably connected to the inner side of the sliding sleeve 156. A second connecting rod 158 is hinged to the tail end of the fixing rod 157, and a fixing block 159 is hinged to the other end of the second connecting rod 158. The fixed block 159 is slidably connected to the sliding sleeve 156. By rotating the sliding sleeve 156, the stop gear 155 is driven to rotate, and the stop gear 155 is driven to rotate, which in turn drives the adjusting gear 152 to rotate. The rotation angle of the mounting base 2 can be adjusted by rotating the sliding sleeve 156. The rotation amplitude can be adjusted by stretching the sliding sleeve 156, allowing the operator to adjust the angle of the total station body 3 more precisely and improve the leveling efficiency. The limit block 161 can limit the movement of the side rod 14 and the sliding sleeve 156, reducing the possibility of the side rod 14 and the sliding sleeve 156 becoming loose due to external influences. The limit block 161 can be quickly released by pulling it, making it easy for the operator to rotate the side rod 14 and the sliding sleeve 156 to adjust the device. In one embodiment of the present invention, the limiting component 16 has a limiting block 161 slidably connected to the inner side of the mounting frame 4. The limiting block 161 is connected to a limiting spring 162, and the other end of the limiting spring 162 is connected to the inner wall of the mounting frame 4. A guide rod is connected to the inner side of the mounting frame 4, and the guide rod passes through the central hole of the limiting spring 162 and is slidably connected to the limiting block 161. Two sets of curved protrusions are provided on the upper part of the limiting block 161, and the two sets of curved protrusions are respectively attached to the sliding sleeve 156 and the side rod 14. As one embodiment of the present invention, three sets of support bases 13 are provided, and the bottom of each of the three sets of support bases 13 is provided with anti-slip rubber. The stability of the device after it is deployed is improved by adding anti-slip rubber to the bottom of the plane on which the support bases 13 are provided. In one embodiment of the present invention, a sliding plate is connected to a fixing rod 157, and the sliding plate is slidably connected to a sliding sleeve 156. A return spring is connected to the inner side of the sliding sleeve 156, and the other end of the return spring is connected to the sliding plate. By pulling the sliding plate, the fixing of the sliding sleeve 156 can be quickly released from the outside, and the elastic force of the return spring can make the fixing block 159 stably embedded in the fixing groove. As one embodiment of the present invention, a fixing groove is provided on the inner side of the gear 155, and a fixing block 159 is located in the fixing groove. By inserting the fixing block 159 into the fixing groove, the sliding sleeve 156 can be fixed, so that the sliding sleeve 156 can drive the gear 155 to rotate during the rotation process. In one embodiment of the present invention, the adjusting gear 152 is provided with three sets of sequentially increasing modules, and the stop gear 155 is also provided with three sets of sequentially increasing modules. The three sets of adjusting gears 152 and the three sets of stop gears 155 are meshed and connected. A rubber ring is provided on the inner side of the stop gear 155. By providing three sets of adjusting gears 152 and stop gears 155, the operator can freely adjust the cutting angle, thereby improving the leveling efficiency of the instrument. The limiting block 161 is provided with a pulling protrusion, and the pulling protrusion is slidably connected to the mounting frame 4. A limiting rod is rotatably connected to the outer side of the mounting frame 4. By rotating the limiting rod, the limiting block 161 can be temporarily fixed, which makes it convenient for the operator to rotate the sliding sleeve 156 and the side rod 14 for adjustment. Example

[0023] Based on the same inventive concept as Embodiment 1, this embodiment describes a method of using an adjustable engineering measuring device, including: Step 1: Rotate the limiting rod upward to separate it from the sliding protrusion of the limiting block 161, pull the sliding protrusion to move it to the other side of the limiting rod, and then rotate the limiting rod in the opposite direction to make it fit with the sliding protrusion again, releasing the limiting of the side rod 14 and the sliding sleeve 156. Rotate the side rod 14. The rotation of the side rod 14 will drive the threaded screw 6 to rotate. The rotation of the threaded screw 6 will drive the annular block 7 to move vertically. The downward movement of the annular block 7 will drive the first connecting rod 8 to rotate. The rotation of the first connecting rod 8 will push the support rod 9 to rotate.

[0024] Step 2: During the rotation of the support rod 9, the inner transmission gear 12 will rotate. The rotation of the transmission gear 12 will drive the support seat 13 to rotate. The rotation direction of the support seat 13 is opposite to that of the support rod 9, and the rotation angle of the support seat 13 is the same as that of the support rod 9. The support seat 13 is always parallel to the ground during the rotation of the support rod 9. The entire device is supported by the three sets of unfolded support seats 13.

[0025] Step 3: After the support base 13 is unfolded, rotate the sliding sleeve 156. The rotation of the sliding sleeve 156 drives the fixed rod 157 to rotate, which in turn drives the second connecting rod 158 to rotate. The rotation of the second connecting rod 158 drives the fixed block 159 to rotate, which in turn drives the gear 155 to rotate. The rotation of the gear 155 drives the adjusting gear 152 to rotate, which in turn drives the adjusting rod 151 to rotate. The rotation of the adjusting rod 151 drives the adjusting screw 153 to rotate, which in turn drives the adjusting block 154 to move vertically. The vertical movement of the adjusting block 154 adjusts the angle of the mounting base 2.

[0026] Step 4: After the angle of mounting base 2 is adjusted significantly, pull the sliding plate to drive the fixing rod 157 to move horizontally. The horizontal movement of the fixing rod 157 will drive the fixing block 159 to move. The fixed block 159 moves and separates from the inner fixing groove of a set of gears 155. Then, while keeping the sliding plate pulled, push the sliding sleeve 156 so that the movement of the sliding sleeve 156 drives the fixing block 159 to move. After the fixing block 159 moves into the inner side of the second set of gears 155, release the sliding plate. The sliding sleeve 156 will enter into the inner fixing groove of the second set of gears 155 under the action of the return spring. Then, rotate the sliding sleeve 156 again to make a small adjustment to the angle of mounting base 2. By embedding the fixing block 159 into the third set of gears 155, the angle of mounting base 2 can be adjusted more precisely.

[0027] Step 5: After the mounting base 2 is leveled, rotate the limiting rod to separate from the sliding protrusion. The limiting block 161 will be affected by the limiting spring 162 and re-fit with the side rod 14 and the sliding sleeve 156. The limiting block 161 fixes the side rod 14 and the sliding sleeve 156 to prevent the side rod 14 and the sliding sleeve 156 from becoming loose due to external vibration.

[0028] Working principle: First, when the device needs to be unfolded, rotate the limiting rod upward to separate it from the sliding protrusion of the limiting block 161. Then, pull the sliding protrusion to move it to the other side of the limiting rod. Then, rotate the limiting rod in the opposite direction to re-engage with the sliding protrusion. During the movement of the limiting block 161, the curved protrusion will separate from the side rod 14 and the sliding sleeve 156, releasing the limiting of the side rod 14 and the sliding sleeve 156. Rotate the side rod 14. Since the side rod 14 is connected to the threaded screw 6 through a bevel gear set, the rotation of the side rod 14 will drive the threaded screw 6 to rotate. Since the threaded screw 6 is threadedly connected to the annular block 7 and the annular block 7 is slidably connected to the adjusting sleeve 5, the rotation of the threaded screw 6 will drive the annular block 7 to move vertically. The first connecting rod 8 is hinged to the first connecting rod 8, and the first connecting rod 8 is hinged to the support rod 9. Therefore, when the ring block 7 moves downward, it will drive the first connecting rod 8 to rotate relative to the hinge point connected to the ring block 7 at the top. The rotation of the first connecting rod 8 will drive the support rod 9 to rotate. During the rotation of the support rod 9, it will drive the transmission gear 12 connected to the inner side of the top to rotate. Since the transmission gear 12 is connected to the connecting shaft on the support seat 13 through the transmission belt, the rotation of the transmission gear 12 will drive the support seat 13 to rotate relative to the support rod. The rotation direction of the support seat 13 is opposite to the rotation direction of the support rod 9, and the rotation angle of the support seat 13 is the same as the rotation angle of the support rod 9. The support seat 13 is always parallel to the ground during the rotation of the support rod 9. The entire device is supported by the three sets of unfolded support seats 13. Secondly, after the support base 13 is unfolded, the sliding sleeve 156 is rotated. The rotation of the sliding sleeve 156 drives the fixed rod 157 to rotate, the rotation of the fixed rod 157 drives the second connecting rod 158 to rotate, the rotation of the second connecting rod 158 drives the fixed block 159 to rotate, and the rotation of the fixed block 159 drives the gear 155 to rotate. Since the gear 155 is meshed with the adjusting gear 152, the rotation of the gear 155 will drive the adjusting gear 152 to rotate. The rotation of the adjusting gear 152 will drive the adjusting rod 151 to rotate. Since the adjusting rod 151 is connected to the adjusting screw 153 through the bevel gear set, the rotation of the adjusting rod 151 will drive the adjusting screw 153 to rotate. Since the adjusting screw 153 is threadedly connected to the adjusting block 154 and the adjusting block 154 is slidably connected to the mounting frame 4, the rotation of the adjusting screw 153 will drive the adjusting block 154 to move vertically. Since the adjusting block 154 is rotatably connected to the bottom slider of the mounting base 2, the vertical movement of the adjusting block 154 will adjust the angle of the mounting base 2.

[0029] Finally, after the angle of mounting base 2 is significantly adjusted, pulling the sliding plate causes the fixing rod 157 to move horizontally. Since the fixing rod 157 is hinged to the second connecting rod 158, and the second connecting rod 158 is hinged to the fixing block 159, and the fixing block 159 is slidably connected to the sliding sleeve 156, the horizontal movement of the fixing rod 157 will cause the fixing block 159 to move. The movement of the fixing block 159 separates it from the inner fixing groove of a set of gears 155. Then, while keeping the sliding plate pulled, push the sliding sleeve 156, causing the sliding sleeve 156 to move and drive the fixing block 159 to move. After feeling a slight blockage in the rubber ring, the fixing block 159 moves into the inner side of the second set of gears 155, releasing... When the sliding plate is opened, the sliding sleeve 156 will enter the inner fixing groove of the second set of gears 155 under the action of the return spring. Then, by rotating the sliding sleeve 156 again, the angle of the mounting seat 2 can be adjusted slightly. By embedding the fixing block 159 into the third set of gears 155, the angle of the mounting seat 2 can be adjusted more precisely. After the mounting seat 2 is leveled, the rotating limit rod separates from the sliding protrusion. The limit block 161 will be affected by the limit spring 162 and re-fit with the side rod 14 and the sliding sleeve 156. The limit block 161 fixes the side rod 14 and the sliding sleeve 156 to prevent the side rod 14 and the sliding sleeve 156 from becoming loose due to external vibration.

[0030] In summary, the present invention can drive the threaded screw to rotate by rotating the lateral rod. The rotation of the threaded screw drives the support rod to rotate and unfold. During the rotation of the support rod, the support seat will rotate in the opposite direction. After the support rod is unfolded and fixed, the support seat is fixed synchronously. The device is supported by three sets of support seats on the same plane, which ensures the stability of the device after it is fixed. In addition, since the contact area between the support seat and the ground is large, the occurrence of the support seat sinking due to pressure is reduced.

[0031] This invention uses a rotating sliding sleeve to drive a gear shift, which in turn drives an adjusting gear. The rotation of the adjusting gear allows for adjustment of the rotation angle of the mounting base. Furthermore, the range of rotation can be adjusted by stretching the sliding sleeve. This enables operators to make more precise adjustments to the angle of the total station body, thereby improving leveling efficiency.

[0032] This invention uses a limit block to limit the movement of the lateral rod and the sliding sleeve, reducing the possibility of the lateral rod and the sliding sleeve becoming loose due to external influences. Furthermore, the limit block can be quickly released by pulling it, making it convenient for workers to rotate the lateral rod and the sliding sleeve to adjust the device.

[0033] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. An adjustable engineering measuring device, comprising a main disk (1), characterized in that, A mounting base (2) is rotatably connected above the main body (1), and a total station body (3) is mounted above the mounting base (2). An adjusting sleeve (5) is connected to the bottom of the main body (1), and a threaded screw (6) is rotatably connected to the inner side of the adjusting sleeve (5). An annular block (7) is threadedly connected to the threaded screw (6), and the annular block (7) is slidably connected to the adjusting sleeve (5). A first connecting rod (8) is hinged to the outer wall of the annular block (7), and a support rod (9) is hinged to the other end of the first connecting rod (8). A support seat (13) is rotatably connected to the bottom end of the support rod (9). The bottom of the main disc (1) is connected to four sets of rotating rods (10) on the adjusting sleeve (5), and the rotating rods (10) are rotatably connected to the support rod (9). The rotating rod (10) is sleeved with a main gear (11), and the bottom of the main gear (11) is meshed with a transmission gear (12), and the transmission gear (12) is connected to the support rod (9). The transmission gear (12) is connected to the rotating shaft of the support seat (13) through a transmission belt. The mounting frame (4) is rotatably connected with a side rod (14), and the side rod (14) is connected to the threaded screw (6) through a bevel gear set. Adjustment component (15), the adjustment component (15) is disposed above the main disk body (1) and located inside the mounting frame (4); Limiting component (16) is located above the main body (1) and inside the mounting frame (4).

2. The adjustable engineering measuring device according to claim 1, characterized in that, The adjusting assembly (15) has an adjusting rod (151) rotatably connected to the inner side of the mounting frame (4). The adjusting rod (151) is sleeved with an adjusting gear (152). The adjusting rod (151) is connected to an adjusting screw (153) through a bevel gear set. The adjusting screw (153) is threadedly connected to an adjusting block (154), and the adjusting block (154) is slidably connected to the mounting frame (4). The bottom of the mounting base (2) is slidably connected to a slider, and the slider is rotatably connected to the adjusting block (154). The mounting frame (4) is connected to a partition plate on its inner side. The bottom of the partition plate is rotatably connected to a gear (155) via a hollow bearing. The mounting frame (4) is slidably connected to a sliding sleeve (156). The sliding sleeve (156) is slidably connected to a fixing rod (157) on its inner side. The end of the fixing rod (157) is hinged to a second connecting rod (158), and the other end of the second connecting rod (158) is hinged to a fixing block (159). The fixing block (159) is slidably connected to the sliding sleeve (156).

3. The adjustable engineering measuring device according to claim 1, characterized in that, The limiting component (16) has a limiting block (161) slidably connected to the inner side of the mounting frame (4). The limiting block (161) is connected to a limiting spring (162), and the other end of the limiting spring (162) is connected to the inner wall of the mounting frame (4). A guide rod is connected to the inner side of the mounting frame (4), and the guide rod passes through the central hole of the limiting spring (162) and is slidably connected to the limiting block (161). Two sets of curved protrusions are provided on the upper part of the limiting block (161), and the two sets of curved protrusions are respectively attached to the sliding sleeve (156) and the side rod (14).

4. The adjustable engineering measuring device according to claim 1, characterized in that, The support base (13) is provided in three sets, and the bottom of each of the three sets of support bases (13) is provided with anti-slip rubber.

5. The adjustable engineering measuring device according to claim 2, characterized in that, The fixed rod (157) is connected to a sliding plate, and the sliding plate is slidably connected to the sliding sleeve (156). A return spring is connected to the inner side of the sliding sleeve (156), and the other end of the return spring is connected to the sliding plate.

6. The adjustable engineering measuring device according to claim 2, characterized in that, The gear (155) has a fixing groove on its inner side, and the fixing block (159) is located in the fixing groove.

7. The adjustable engineering measuring device according to claim 2, characterized in that, The adjusting gear (152) is provided with three sets of sequentially increasing modules, and the gear shift gear (155) is also provided with three sets of sequentially increasing modules. The three sets of adjusting gears (152) are meshed with the three sets of gear shift gears (155), and a rubber ring is provided on the inner side of the gear shift gear (155).

8. The adjustable engineering measuring device according to claim 3, characterized in that, The limiting block (161) is provided with a pulling protrusion, and the pulling protrusion is slidably connected to the mounting frame (4), and the mounting frame (4) is rotatably connected to a limiting rod on the outside.

9. A method of using an adjustable engineering measuring device, characterized in that, An adjustable engineering measuring device suitable for any one of claims 1-8, comprising: Rotate the limiting rod upward to separate it from the sliding protrusion of the limiting block (161), pull the sliding protrusion to move it to the other side of the limiting rod, and then rotate the limiting rod in the opposite direction to make it fit with the sliding protrusion again, release the limiting of the side rod (14) and the sliding sleeve (156), rotate the side rod (14), the rotation of the side rod (14) will drive the threaded screw (6) to rotate, the rotation of the threaded screw (6) will drive the ring block (7) to move vertically, the downward movement of the ring block (7) will drive the first connecting rod (8) to rotate, the rotation of the first connecting rod (8) will push the support rod (9) to rotate; During the rotation of the support rod (9), the inner transmission gear (12) will rotate. The rotation of the transmission gear (12) will drive the support seat (13) to rotate. The rotation direction of the support seat (13) is opposite to that of the support rod (9), and the rotation angle of the support seat (13) is the same as that of the support rod (9). The support seat (13) is always parallel to the ground during the rotation of the support rod (9). The entire device is supported by the three sets of unfolded support seats (13). After the support base (13) is unfolded, rotate the sliding sleeve (156). The rotation of the sliding sleeve (156) drives the fixed rod (157) to rotate. The rotation of the fixed rod (157) drives the second connecting rod (158) to rotate. The rotation of the second connecting rod (158) drives the fixed block (159) to rotate. The rotation of the fixed block (159) drives the gear (155) to rotate. The rotation of the gear (155) drives the adjusting gear (152) to rotate. The rotation of the adjusting gear (152) drives the adjusting rod (151) to rotate. The rotation of the adjusting rod (151) drives the adjusting screw (153) to rotate. The rotation of the adjusting screw (153) drives the adjusting block (154) to move vertically. The vertical movement of the adjusting block (154) will adjust the angle of the mounting base (2). After the angle of the mounting base (2) is adjusted significantly, the sliding plate is pulled to drive the fixing rod (157) to move horizontally. The horizontal movement of the fixing rod (157) will drive the fixing block (159) to move. The fixed block (159) moves and separates from the inner fixing groove of a set of gears (155). Then, while keeping the sliding plate pulled, the sliding sleeve (156) is pushed so that the sliding sleeve (156) moves and drives the fixing block (159) to move. After the fixing block (159) moves into the inner side of the second set of gears (155), the sliding plate is released. The sliding sleeve (156) will enter the inner fixing groove of the second set of gears (155) under the action of the return spring. Then, the angle of the mounting base (2) can be adjusted slightly by rotating the sliding sleeve (156) again. The angle of the mounting base (2) can be adjusted by embedding the fixing block (159) into the third set of gears (155). After the mounting base (2) is leveled, the rotating limit rod separates from the sliding protrusion. The limit block (161) will be affected by the limit spring (162) and re-fit with the side rod (14) and the sliding sleeve (156). The limit block (161) fixes the side rod (14) and the sliding sleeve (156).

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