Urban and rural planning measuring device

Abstract

The invention provides an urban and rural planning measuring device, and relates to the field of measuring instruments. A supporting assembly is fixedly installed on the upper end face of the supporting chassis, and the upper end of the supporting assembly is fixedly connected with a circular supporting plate. The upper end face of the circular supporting plate is fixedly connected with a square fixing plate base through a fixing mechanism. According to the invention, through the arrangement of the grounding pieces, the four grounding pieces are downwards smashed into the land, and then the driving rod is manually rotated, so that the reinforcing screw rod is inserted into the soil layer, thereby improving the fixing effect of the supporting chassis on the land, and enabling the measuring device not to be easily blown down by strong wind in strong wind weather. Therefore, the phenomenon that the measuring device is damaged is avoided; the problem that when a traditional measuring device is used in a construction site, the lower end of a tripod and the land are difficult to effectively fix, so that the measuring device is easily blown down by strong wind in strong wind weather, and the measuring device is damaged is solved.

Description

Technical Field

[0001] This invention relates to the field of measuring instrument technology, and in particular to a surveying device for urban and rural planning. Background Technology

[0002] Urban and rural planning is a general term for urban planning, town planning, township planning and village planning. In the process of urban and rural planning, surveying devices are needed to measure the construction site. For example, total stations are one type of surveying instrument. Construction surveying is a prerequisite for achieving efficient and safe on-site management.

[0003] Traditional urban and rural planning surveying devices, while supported by tripods on construction sites, suffer from numerous drawbacks. The tripod's lower end is difficult to securely anchor to the ground, making it susceptible to being blown over and damaged by strong winds. Furthermore, while adjusting the height of the device can be achieved by adjusting the tripod, this process requires loosening three handwheels on the tripod, adjusting the height, and then tightening the handwheels again to complete the adjustment. This lack of convenience hinders the ease of height adjustment. Summary of the Invention

[0004] In view of this, the present invention provides an urban and rural planning surveying device to solve the problem that when traditional surveying devices are used on construction sites, it is difficult to effectively fix the lower end of the tripod to the ground, so that the surveying device is easily blown over by strong winds in windy weather, thus causing damage to the surveying device.

[0005] This invention provides an urban and rural planning surveying device, specifically comprising: a support chassis; a support component fixedly installed on the upper surface of the support chassis, and a circular support plate fixedly connected to the upper end of the support component; a square fixing plate seat fixedly connected to the upper surface of the circular support plate via a fixing mechanism, and a total station body fixedly connected to the square fixing plate seat; a lifting mechanism provided on the upper part of both the left and right sides of the support component, and four limiting mechanisms provided on the outer side of the support component; four square openings arranged in a circular array at the edge of the upper surface of the support chassis, and a grounding component inserted into each square opening on the support chassis.

[0006] Furthermore, the support assembly includes square support columns, square sliding cylinders, adjustment holes, strip-shaped openings, and limiting posts. There are four square support columns, and the lower ends of the four square support columns are all fixedly connected to the upper surface of the support chassis. Each square support column has a square sliding cylinder slidably connected to its outer upper side, and the upper ends of the four square sliding cylinders are fixedly connected to the bottom surface of the circular support plate. Each square support column has adjustment holes evenly distributed on its outer side, each square sliding cylinder has a strip-shaped opening on its outer side, and each square support column has a limiting post fixedly connected to its upper outer side, with the four limiting posts passing through the four strip-shaped openings respectively.

[0007] Furthermore, the fixing mechanism includes a limiting frame, a U-shaped support plate, a drive turntable, connecting rods, sliding blocks, limiting connectors, driving rods, and guide rods. The limiting frame is fixedly connected to the middle of the upper surface of the circular support plate, and a U-shaped support plate is fixedly connected to both the left and right ends of the limiting frame. A sliding block is slidably connected to the inner side of each U-shaped support plate, and two limiting connectors are provided on one side of each sliding block. Four guide rods penetrating the U-shaped support plate are provided on the other side of each sliding block. A spring is sleeved on the outside of each guide rod located inside the U-shaped support plate. A driving rod is fixedly connected to the upper surface of each sliding block. The drive turntable is rotatably connected to the middle of the front side of the upper surface of the circular support plate, and two connecting rods are rotatably connected in a circular array at the edge of the upper surface of the drive turntable. The other ends of the two connecting rods are rotatably connected to the bottom surfaces of the two driving rods, respectively.

[0008] Furthermore, the square fixing plate base has two rectangular insertion interfaces on both its left and right end faces in a symmetrical manner, and the side length of the bottom end face of the square fixing plate base is equal to the side length of the inner side of the limiting frame.

[0009] Furthermore, when the fixing mechanism is in the limited position, the four limit plug ends are respectively plugged into the four rectangular plug interfaces, and the upper edge of each limit plug end is chamfered.

[0010] Furthermore, the lifting mechanism includes a U-shaped drive plate and horizontal guide rods. Eight horizontal guide rods are slidably connected to the U-shaped drive plate, and each horizontal guide rod has a circular limiting block at its tail end. A handle is provided on the upper part of the outer side of the U-shaped drive plate.

[0011] Furthermore, the limiting mechanism includes a limiting slide cylinder, a rectangular sliding block, a pull rod, and a limiting insert rod. The rectangular sliding block is slidably connected inside the limiting slide cylinder, and the head end of the rectangular sliding block is provided with a limiting insert rod that penetrates the head of the limiting slide cylinder. The tail end of the rectangular sliding block is provided with a pull rod that penetrates the tail end of the limiting slide cylinder, and a spring is sleeved on the outside of the pull rod inside the limiting slide cylinder.

[0012] Furthermore, when the limiting mechanism is in the limiting state, the head end of the limiting rod is inserted into the adjusting socket.

[0013] Furthermore, the grounding component has a circular striking block at its upper end and a rectangular cavity inside. A rectangular groove is formed in the center of the upper surface of the circular striking block, and a lifting rod is fixedly connected inside the rectangular groove. Six rotating nuts are rotatably connected inside the rectangular cavity, and each rotating nut is threadedly connected to a reinforcing screw. Each reinforcing screw has a tapered head, and a worm gear is fixedly installed on the outside of each rotating nut. Two rotating rods are rotatably connected inside the rectangular cavity, and three spiral strips are fixedly connected to the outside of each rotating rod, meshing with the worm gear. A first bevel gear is fixedly connected to the upper end of each rotating rod. Two drive rods are rotatably connected to the upper end of the grounding component, and each drive rod penetrates the grounding component. A second bevel gear is fixedly installed at one end of each drive rod, and the two second bevel gears mesh with the two first bevel gears respectively.

[0014] Furthermore, six U-shaped support slide rails are fixedly connected inside the rectangular cavity, and a rectangular slide plate is slidably connected to the inner side of each U-shaped support slide rail; the rectangular slide plate is fixedly connected to the tail end of the reinforcing screw.

[0015] The beneficial effects are:

[0016] 1. By incorporating grounding components, this invention allows the measuring device to be fixed to the ground simply by inserting four grounding components into the four square openings on the supporting chassis. These components are then driven downwards into the ground, effectively securing the supporting chassis. Manually rotating the drive rod causes the second bevel gear to rotate along with the first bevel gear, the rotating rod, and the spiral strip. The spiral strip then drives the worm gear and the rotating nut, causing the reinforcing screw to move outwards in a straight line under the action of the thread, thus inserting it into the soil. This improves the friction between the grounding components and the ground, enhancing the fixing effect of the grounding components and further strengthening the support chassis's stability on the ground. Consequently, in windy conditions, the measuring device is less likely to be blown over, preventing damage.

[0017] 2. This invention, through the cooperation of the lifting mechanism and the limiting mechanism, allows for the adjustment of the total station's height by first moving the handles on the two U-shaped drive plates in opposite directions with both hands. This causes the ends of the four limiting rods to be pulled out of the adjustment holes on the four square support columns. Then, by moving the handles on the two U-shaped drive plates up and down with both hands, the total station's height is adjusted by moving the circular support plate, the fixing mechanism, the square fixing plate base, and the total station itself up and down. Furthermore, the entire adjustment process does not require rotating multiple fastening handwheels, greatly improving the convenience of height adjustment for this measuring device.

[0018] 3. By setting up a fixed mechanism, this invention allows the measuring device to be used after it has been used. First, the drive turntable can be manually rotated 90 degrees counterclockwise, causing the drive turntable to rotate 90 degrees counterclockwise at one end of the two connecting rods. Then, the other ends of the two connecting rods move the two driving rods in opposite directions, thereby moving the two sliding blocks in opposite directions. This allows the limiting plug strips on the two sliding blocks to be pulled out from the rectangular plug interface. Then, the total station body can be disassembled, thus improving the convenience of disassembling the total station body.

[0019] 4. By setting all the upper edges of the limit plug strip to be chamfered, when installing the total station body onto the upper surface of the circular support plate, the square fixing plate base can be placed inside the limit frame, and the limit plug strip can be automatically inserted into the rectangular plug interface under the action of the chamfer, thus making it more convenient and faster to install the total station body onto the upper surface of the circular support plate. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0021] In the attached diagram:

[0022] Figure 1 This is an axial view structural schematic diagram of an embodiment of the present invention.

[0023] Figure 2 This is a structural diagram of an embodiment of the present invention in a split state.

[0024] Figure 3 This is a schematic diagram of the lifting mechanism and limiting mechanism according to an embodiment of the present invention.

[0025] Figure 4 This is a schematic diagram of the limiting mechanism structure according to an embodiment of the present invention.

[0026] Figure 5 This is a schematic diagram of the disassembled fixing mechanism according to an embodiment of the present invention.

[0027] Figure 6 This is a partial cross-sectional view of the grounding component and the circular striking block according to an embodiment of the present invention.

[0028] Figure 7 This is an embodiment of the present invention. Figure 6 A magnified schematic diagram of the structure at point A in the middle.

[0029] Figure 8 This is a schematic diagram of the grounding component structure according to an embodiment of the present invention.

[0030] List of reference numerals

[0031] 1. Support chassis; 2. Support components; 201. Square support column; 202. Square slide cylinder; 203. Adjustment socket; 204. Strip-shaped opening; 205. Limiting column; 3. Circular support plate; 4. Fixing mechanism; 401. Limiting frame; 402. U-shaped support plate; 403. Drive turntable; 404. Connecting rod; 405. Sliding block; 406. Limiting connector strip; 407. Driving rod; 408. Guide slide rod; 5. Square fixing plate base; 501. Rectangular connector; 6. Total station body; 7. Lifting mechanism 701. U-shaped drive plate; 702. Horizontal guide rod; 8. Limiting mechanism; 801. Limiting slide cylinder; 802. Rectangular sliding block; 803. Pulling rod; 804. Limiting insertion rod; 9. Grounding component; 901. Circular striking block; 902. Rectangular cavity; 903. Rectangular groove; 904. Lifting rod; 905. Reinforcing screw; 906. Rotating rod; 907. Drive rod; 908. Spiral strip; 909. U-shaped support slide rail; 9010. Rectangular sliding plate; 9011. Rotating nut; 9012. Worm gear. Detailed Implementation

[0032] To make the objectives, solutions, and advantages of the technical solutions of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments of the present invention.

[0033] Example: Please refer to Figures 1 to 8 As shown:

[0034] This invention provides an urban and rural planning surveying device, including a support chassis 1; a support component 2 is fixedly installed on the upper surface of the support chassis 1, and a circular support plate 3 is fixedly connected to the upper end of the support component 2; a square fixing plate seat 5 is fixedly connected to the upper surface of the circular support plate 3 through a fixing mechanism 4, and a total station body 6 is fixedly connected to the square fixing plate seat 5; a lifting mechanism 7 is provided on the upper part of both the left and right sides of the support component 2, and four limiting mechanisms 8 are provided on the outer side of the support component 2; four square openings are arranged in a circular array at the edge of the upper surface of the support chassis 1, and a grounding component 9 is inserted into each square opening on the support chassis 1 for connection with the ground, thereby improving the stability of the support chassis 1;

[0035] The support assembly 2 includes square support columns 201, square slide cylinders 202, adjustment holes 203, strip-shaped openings 204, and limiting posts 205. There are four square support columns 201, and the lower ends of the four square support columns 201 are fixedly connected to the upper surface of the support base 1. Each square support column 201 has a square slide cylinder 202 slidably connected to its outer upper side, and the upper ends of the four square slide cylinders 202 are fixedly connected to the bottom surface of the circular support plate 3. Each square support column 201 has adjustment holes 203 evenly distributed on its outer side, and each square slide cylinder 202 has a strip-shaped opening 204 on its outer side. Each square support column 201 has a limiting post 205 fixedly connected to its outer upper side, and the four limiting posts 205 pass through the four strip-shaped openings 204 respectively. The support assembly 2 is used to adjust the height of the circular support plate 3.

[0036] like Figure 1 and Figure 5 As shown, the fixing mechanism 4 includes a limiting frame 401, a U-shaped support plate 402, a drive turntable 403, a connecting rod 404, a sliding block 405, a limiting connector strip 406, a driving rod 407, and a guide slide rod 408. The limiting frame 401 is fixedly connected to the middle of the upper surface of the circular support plate 3, and a U-shaped support plate 402 is fixedly connected to both the left and right ends of the limiting frame 401. A sliding block 405 is slidably connected to the inner side of each U-shaped support plate 402, and each sliding block 405 has two limiting connector strips 406 on one side. The other side of each sliding block 405 is provided with four guide rods 408 that penetrate the U-shaped support plate 402. Each guide rod 408 is fitted with a spring on the outside of the U-shaped support plate 402. Each sliding block 405 is fixedly connected to a driving rod 407 on its upper end face. The drive turntable 403 is rotatably connected to the middle of the front side of the upper end face of the circular support plate 3. Two connecting rods 404 are rotatably connected in a ring array at the edge of the upper end face of the drive turntable 403. The other ends of the two connecting rods 404 are rotatably connected to the bottom end face of the two driving rods 407 respectively.

[0037] The square fixing plate base 5 has two rectangular insertion interfaces 501 on both its left and right end faces, which are symmetrically arranged. The side length of the bottom end face of the square fixing plate base 5 is equal to the side length of the inner side of the limiting frame 401.

[0038] When the fixed mechanism 4 is in the limit position, the ends of the four limit plug strips 406 are respectively plugged into the four rectangular plug interfaces 501, and the upper edge of the end of each limit plug strip 406 is chamfered, so that the total station body 6 is more convenient and quick to install onto the upper surface of the circular support plate 3.

[0039] like Figures 1 to 4As shown, the lifting mechanism 7 includes a U-shaped drive plate 701 and horizontal guide rods 702. Eight horizontal guide rods 702 are slidably connected to the U-shaped drive plate 701, and each horizontal guide rod 702 has a circular limit block at its tail end. A handle is provided on the upper part of the outer side surface of the U-shaped drive plate 701.

[0040] The limiting mechanism 8 includes a limiting slide cylinder 801, a rectangular sliding block 802, a pull rod 803, and a limiting insertion rod 804. The rectangular sliding block 802 is slidably connected inside the limiting slide cylinder 801, and the head end of the rectangular sliding block 802 is provided with a limiting insertion rod 804 that penetrates the head of the limiting slide cylinder 801. The tail end of the rectangular sliding block 802 is provided with a pull rod 803 that penetrates the tail end of the limiting slide cylinder 801, and a spring is sleeved on the outside of the pull rod 803 inside the limiting slide cylinder 801. When the limiting mechanism 8 is in the limiting state, the head end of the limiting insertion rod 804 is inserted into the adjustment socket 203. Through the cooperation of the lifting mechanism 7 and the limiting mechanism 8, when it is necessary to adjust the height of the total station body 6, it is not necessary to turn multiple fastening handwheels, thereby greatly improving the convenience of this measuring device when adjusting the height.

[0041] like Figure 1 , Figure 6 , Figure 7 and Figure 8 As shown, the grounding component 9 has a circular striking block 901 at its upper end, and a rectangular cavity 902 inside the grounding component 9. A rectangular groove 903 is formed in the middle of the upper surface of the circular striking block 901, and a lifting rod 904 is fixedly connected inside the rectangular groove 903. Six rotating nuts 9011 are rotatably connected inside the rectangular cavity 902, and a reinforcing screw 905 is threadedly connected inside each rotating nut 9011. The head of each reinforcing screw 905 is tapered. A lifting rod 904 is fixedly installed on the outside of each rotating nut 9011. Worm gear 9012; two rotating rods 906 are rotatably connected inside the rectangular cavity 902, and three spiral strips 908 are fixedly connected to the outside of each rotating rod 906, and the spiral strips 908 mesh with the worm gear 9012. A first bevel gear is fixedly connected to the upper end of each rotating rod 906; two drive rods 907 are rotatably connected to the upper end of the grounding component 9, and each drive rod 907 passes through the grounding component 9, and a second bevel gear is fixedly installed at one end of each drive rod 907. The two second bevel gears mesh with the two first bevel gears respectively.

[0042] The rectangular cavity 902 has six U-shaped support slide rails 909 fixedly connected inside, and each U-shaped support slide rail 909 has a rectangular slide plate 9010 slidably connected to its inner side; the rectangular slide plate 9010 is fixedly connected to the tail end of the reinforcing screw 905; the grounding component 9 is provided to further improve the fixing effect of the support chassis 1 on the ground, so that the measuring device is not easily blown over by strong winds in windy weather, thus avoiding damage to the measuring device.

[0043] The specific usage and function of this embodiment: In the process of urban and rural planning, when it is necessary to measure the construction site, the measuring device is first placed on the flat land. Then, the four grounding parts 9 are respectively inserted into the four square openings on the support base 1. Then, the four grounding parts 9 are hammered down into the ground to effectively fix the support base 1 on the ground. Then, by manually rotating the drive rod 907, the second bevel gear drives the first bevel gear, the rotating rod 906 and the spiral strip 908 to rotate. Then, the spiral strip 908 drives the worm gear 9012 and the rotating nut 9011 to rotate. Then, the reinforcing screw 905 begins to move outward in a straight line under the action of the thread, so that the reinforcing screw 905 is inserted into the soil layer, thereby making the grounding parts 9 have better friction with the ground, thus improving the fixing effect of the grounding parts 9.

[0044] During use, when it is necessary to adjust the height of the total station body 6, firstly, move the handles on the two U-shaped drive plates 701 in opposite directions with both hands. This will cause the two U-shaped drive plates 701, along with the four pull rods 803, four rectangular sliding blocks 802, and four limiting rods 804, to move towards the tail end of the pull rods 803. This will cause the heads of the four limiting rods 804 to be pulled out from the adjustment holes 203 on the four square support columns 201, thus causing the four square support columns 201 to lose their fixing function inside the four square sliding cylinders 202. Then, move the handles on the two U-shaped drive plates 701 up and down with both hands, moving the circular support plate 3, the fixing mechanism 4, the square fixing plate base 5, and the total station body 6 up and down, thereby adjusting the height of the total station body 6.

[0045] After using this measuring device, first, manually rotate the drive turntable 403 counterclockwise by 90 degrees. This will cause the drive turntable 403 to rotate 90 degrees counterclockwise at one end of the two connecting rods 404. Then, the other ends of the two connecting rods 404 will move the two driving rods 407 in opposite directions, thereby moving the two sliding blocks 405 in opposite directions. This will cause the limiting connectors 406 on the two sliding blocks 405 to be pulled out from the rectangular connector 501. Then, the total station body 6 can be removed, which improves the convenience of disassembling the total station body 6. Next, rotate the drive rod 907 in the opposite direction, causing the rotating rod 906 to rotate the spiral 908 in reverse. This will cause the spiral 908 to rotate the worm gear 9012 and the rotating nut 9011 in reverse. Then, the reinforcing screw 905 will begin to move in a straight line inward under the action of the thread, thereby retracting the reinforcing screw 905 into the grounding component 9. Finally, the four grounding components 9 can be pulled out of the ground.

Claims

1. A surveying device for urban and rural planning, characterized in that, include: Support chassis (1); a support assembly (2) is fixedly installed on the upper surface of the support chassis (1), and a circular support plate (3) is fixedly connected to the upper end of the support assembly (2); a square fixing plate seat (5) is fixedly connected to the upper surface of the circular support plate (3) through a fixing mechanism (4), and the total station body (6) is fixedly connected to the square fixing plate seat (5); a lifting mechanism (7) is provided on the upper part of both the left and right sides of the support assembly (2), and four limiting mechanisms (8) are provided on the outside of the support assembly (2); four square openings are provided in a circular array at the edge of the upper surface of the support chassis (1), and a grounding component (9) is inserted into each square opening on the support chassis (1).

2. The urban and rural planning surveying device as described in claim 1, characterized in that: The support assembly (2) includes square support columns (201), square slide cylinders (202), adjustment holes (203), strip-shaped openings (204), and limiting posts (205). There are four square support columns (201), and the lower ends of all four square support columns (201) are fixedly connected to the upper surface of the support base (1). Each square support column (201) has a square slide cylinder (202) slidably connected to its upper outer side. The upper end of each square slide cylinder (202) is fixedly connected to the bottom end of the circular support plate (3); each square support column (201) has an adjustment hole (203) evenly opened on its outer side, each square slide cylinder (202) has a strip-shaped opening (204) opened on its outer side, and each square support column (201) has a limiting column (205) fixedly connected to the upper part of its outer side, and the four limiting columns (205) pass through the four strip-shaped openings (204) respectively.

3. The urban and rural planning surveying device as described in claim 1, characterized in that: The fixing mechanism (4) includes a limiting frame (401), a U-shaped support plate (402), a drive turntable (403), a connecting rod (404), a sliding block (405), a limiting connector (406), a driving rod (407), and a guide slide rod (408). The limiting frame (401) is fixedly connected to the middle of the upper surface of the circular support plate (3), and a U-shaped support plate (402) is fixedly connected to both the left and right ends of the limiting frame (401). A sliding block (405) is slidably connected to the inner side of each U-shaped support plate (402), and two limiting connectors (406) are provided on one side of each sliding block (405). Each sliding block (405) has four guide rods (408) on its other side that penetrate the U-shaped support plate (402). Each guide rod (408) is fitted with a spring on the outside of the U-shaped support plate (402). Each sliding block (405) has a driving rod (407) fixedly connected to its upper end face. The driving turntable (403) is rotatably connected to the middle of the front side of the upper end face of the circular support plate (3). Two connecting rods (404) are rotatably connected in a ring array at the edge of the upper end face of the driving turntable (403). The other ends of the two connecting rods (404) are rotatably connected to the bottom end faces of the two driving rods (407) respectively.

4. The urban and rural planning surveying device as described in claim 3, characterized in that: The square fixing plate base (5) has two rectangular insertion interfaces (501) on both the left and right ends, which are symmetrically arranged. The side length of the bottom end of the square fixing plate base (5) is equal to the side length of the inner side of the limiting frame (401).

5. The urban and rural planning surveying device as described in claim 4, characterized in that: When the fixing mechanism (4) is in the limiting state, the ends of the four limiting plug strips (406) are respectively plugged into the four rectangular plug interfaces (501), and the upper edge of the end of each limiting plug strip (406) is chamfered.

6. The urban and rural planning surveying device as described in claim 1, characterized in that: The lifting mechanism (7) includes a U-shaped drive plate (701) and horizontal guide rods (702). Eight horizontal guide rods (702) are slidably connected on the U-shaped drive plate (701), and each horizontal guide rod (702) has a circular limiting block at its tail end. A handle is provided on the upper part of the outer side surface of the U-shaped drive plate (701).

7. The urban and rural planning surveying device as described in claim 2, characterized in that: The limiting mechanism (8) includes a limiting slide cylinder (801), a rectangular sliding block (802), a pull rod (803), and a limiting insert rod (804). The rectangular sliding block (802) is slidably connected inside the limiting slide cylinder (801), and the head end of the rectangular sliding block (802) is provided with a limiting insert rod (804) that penetrates the head of the limiting slide cylinder (801). The tail end of the rectangular sliding block (802) is provided with a pull rod (803) that penetrates the tail end of the limiting slide cylinder (801), and a spring is sleeved on the outside of the pull rod (803) inside the limiting slide cylinder (801).

8. The urban and rural planning surveying device as described in claim 7, characterized in that: When the limiting mechanism (8) is in the limiting state, the head end of the limiting rod (804) is inserted into the adjusting socket (203).

9. The urban and rural planning surveying device as described in claim 1, characterized in that: The grounding component (9) has a circular striking block (901) at its upper end and a rectangular cavity (902) inside. A rectangular groove (903) is formed in the middle of the upper surface of the circular striking block (901), and a lifting rod (904) is fixedly connected inside the rectangular groove (903). Six rotating nuts (9011) are rotatably connected inside the rectangular cavity (902), and a reinforcing screw (905) is threadedly connected inside each rotating nut (9011). The head of each reinforcing screw (905) is tapered. A reinforcing rod is fixedly installed on the outside of each rotating nut (9011). Worm gear (9012); two rotating rods (906) are rotatably connected inside the rectangular cavity (902), and three spiral strips (908) are fixedly connected to the outside of each rotating rod (906), and the spiral strips (908) mesh with the worm gear (9012). A first bevel gear is fixedly connected to the upper end of each rotating rod (906); two drive rods (907) are rotatably connected to the upper end of the grounding member (9), and each drive rod (907) passes through the grounding member (9), and a second bevel gear is fixedly installed at one end of each drive rod (907), and the two second bevel gears mesh with the two first bevel gears respectively.

10. The urban and rural planning surveying device as described in claim 9, characterized in that: The rectangular cavity (902) is fixedly connected to six U-shaped support slide rails (909), and each U-shaped support slide rail (909) is slidably connected to a rectangular slide plate (9010) on its inner side; the rectangular slide plate (9010) is fixedly connected to the tail end of the reinforcing screw (905).

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