House surveying and mapping auxiliary positioning tool

Abstract

The utility model discloses a house surveying and mapping auxiliary positioning tool, which comprises a shell, an annular partition plate is fixedly connected to the middle position of the inner cavity of the shell, when the house surveying and mapping auxiliary positioning tool is used, after a surveying and mapping instrument is fixed at the top of a box body, a supporting column is pulled to be far away from the shell, and a first T-shaped rod is inserted into an inner cavity of a first blind hole on the inner side; the grounding area of the positioning tool can be increased by inserting a first T-shaped rod into an inner cavity of a first blind hole, then a supporting plate can be placed on the ground by inserting a second T-shaped rod into an inner cavity of a second blind hole in the lower portion, so that the use stability of the positioning tool is improved, and through linkage arrangement of a square hole round pipe, a round plate, an electric rod, a square rod, a transmission gear, a driven gear and a servo motor, the positioning tool is convenient to use. The height of the surveying instrument can be adjusted by starting an electric rod, and the angle of the surveying instrument can be adjusted through the work of a servo motor, so that the convenience and flexibility of the surveying instrument during use are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of house surveying and mapping, in particular to an auxiliary positioning tool for house surveying and mapping. Background Art

[0002] Surveying and mapping tools refer to various orientation, distance, angle, height, mapping and photogrammetry tools required for surveying work during the planning, design, construction and management stages of engineering construction.

[0003] According to a house surveying and mapping auxiliary positioning tool disclosed in Chinese patent public number CN216246349U, when using the device, the device only needs to be pressed down, and the support rod will rotate outward by itself and then reach the specified support angle under the limit of the limit mechanism. When storing, the support rod only needs to be rotated inward and fixed by the magnet block; however, after the device is pressed down and fixed, it is not convenient to adjust the height and angle, which affects the applicability and flexibility of the device.

[0004] To this end, we proposed a house surveying and mapping assisted positioning tool to solve the problem. Utility Model Content

[0005] One of the purposes of the utility model is achieved by the following technical solution:

[0006] A house surveying and mapping auxiliary positioning tool comprises a shell, an annular partition is fixedly connected at the middle position of the inner cavity of the shell, and two electric rods arranged on the left and right are fixedly installed on the top of the annular partition, a first circular hole is opened at the top of the shell near the left and right sides, the power ends of the two electric rods respectively penetrate the inner cavities of adjacent first circular holes and are fixedly connected to the same circular plate, and a first bearing is fixedly connected at the center of the circular plate, the inner cavity of the first bearing is rotatably connected to a square hole circular tube, and the top end of the square hole circular tube is fixedly connected to a box body, a second circular hole is opened at the center of the top of the shell, and the bottom end of the square hole circular tube penetrates the first circular hole. The inner cavity of the two circular holes and the annular partition, the inner cavity of the square hole circular tube is slidably fitted with a square rod, and the bottom end of the square rod is rotatably connected to the bottom of the inner cavity of the shell, a servo motor is fixedly installed near the right side of the inner cavity of the shell, and the power output end of the servo motor is fixedly connected with a transmission gear, the left side of the transmission gear is meshed with a driven gear, and the driven gear is sleeved and fixed on the outer wall of the square rod, a surveying instrument is fitted on the top of the box body, and a protective cover is provided on the outer cover of the surveying instrument, the inner wall of the protective cover is fixedly connected with a rubber pad, and the rubber pad is fitted with the surveying instrument, and a locking mechanism is provided between the protective cover and the box body.

[0007] Furthermore, square holes are provided on the outer walls of the shell near the bottom, and the inner cavity of the square holes is slidably connected to a horizontal square column, one end of the four horizontal square columns is fixedly connected to a rectangular plate, and the other ends of the four horizontal square columns are fitted with support columns, the inner sides of the four support columns are provided with T-shaped grooves, and the inner cavity of the T-shaped grooves is slidably connected to a T-shaped slider, the four T-shaped sliders are respectively fixedly connected to adjacent horizontal square columns, and the bottom ends of the four support columns are fixedly connected to a support plate.

[0008] Furthermore, the top of the horizontal square column is provided with first blind holes arranged on the left and right, the outer wall of the shell is fixedly connected to a fixing plate, and the fixing plate is provided with a first through hole, the inner cavity of the first through hole is slidably connected to a first T-shaped rod, and the bottom end of the first T-shaped rod is inserted into the inner cavity of one of the first blind holes, the outer wall of the first T-shaped rod is sleeved with a fixed limiting ring, and the outer wall of the first T-shaped rod is sleeved with a first spring, and the two ends of the first spring are respectively fixedly connected to the fixing plate and the limiting ring.

[0009] Furthermore, a cavity is provided on the support column, and the inner cavity of the cavity is slidably connected to a limit plate, a second T-shaped rod is passed through and fixed on the limit plate, second through holes are provided on the left and right sides of the cavity, and the outer wall of the shell is provided with two second blind holes distributed up and down, one end of the second T-shaped rod passes through an adjacent second through hole and is inserted into the inner cavity of one of the second blind holes, and the other end of the second T-shaped rod passes through the inner cavity of the adjacent second through hole and extends to the outside of the support column, the outer wall of the second T-shaped rod is sleeved with a second spring, and the two ends of the second spring are respectively fixedly connected to the inner wall of the cavity and the limit plate.

[0010] Furthermore, the locking mechanism includes a mounting plate, and the mounting plate is fixedly connected to the left side of the protective cover and is fitted with the top of the box body, the top of the box body is provided with two front-to-rear positioning grooves, and the inner cavity of the positioning groove is inserted with a positioning block, the tops of the two positioning blocks are fixedly connected to the mounting plate, an L-shaped plate is fitted at the left side of the top of the mounting plate, the top of the box body is provided with a rectangular slot matching the L-shaped plate, and the other side of the L-shaped plate passes through the rectangular slot, extends to the inner cavity of the box body, and is fixedly connected with a threaded sleeve, the inner cavity of the threaded sleeve is screwed with a threaded rod, the left side of the box body is fixedly connected with a second bearing, and the left end of the threaded rod passes through the inner cavity of the second bearing and is fixedly connected with a hand wheel, the bottom of the threaded sleeve is fixedly connected with a sliding plate, and the bottom of the sliding plate is fixedly connected with a slider, the bottom of the inner cavity of the box body is provided with a sliding groove, and the slider is slidably connected to the inner cavity of the sliding groove.

[0011] Furthermore, a through hole is provided at the top of the box body near the right side, and the inner cavity of the through hole is slidably connected to a limit rod, the limit rod is fitted with the right side of the surveying instrument, the bottom end of the limit rod is fixedly connected to a trapezoidal plate, and the right side of the trapezoidal plate is fixedly connected to a connecting plate, a third through hole is provided on the connecting plate, and the inner cavity of the third through hole is penetrated by a vertical rod, the two ends of the vertical rod are respectively fixedly connected to the top and bottom of the inner cavity of the box body, the outer wall of the vertical rod is sleeved with a third spring, and the two ends of the third spring are respectively fixedly connected to the connecting plate and the inner wall of the box body, a sphere is fitted at the bottom of the trapezoidal plate, and a cross rod is fixedly connected to the left side of the sphere, and the left end of the cross rod is fixedly connected to the right side wall of the sliding plate.

[0012] Furthermore, handles are fixedly connected to the left and right sides of the shell near the top.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. Through the arrangement of the support column, the support plate, the horizontal square column, the rectangular plate, the first T-shaped rod, the limiting ring, the first spring, the limiting plate, the second T-shaped rod and the second spring, after the surveying instrument is fixed on the top of the box body, the support column can be pulled away from the shell, and the first T-shaped rod is inserted into the inner cavity of the first blind hole on the inside, so that the ground contact area of ​​the positioning tool can be increased. Then, by inserting the second T-shaped rod into the inner cavity of the second blind hole below, the support plate can be placed on the ground to improve the stability of the positioning tool. Through the linkage arrangement of the square hole round tube, the round plate, the electric rod, the square rod, the transmission gear, the driven gear and the servo motor, the height of the surveying instrument can be adjusted by starting the electric rod, and the angle of the surveying instrument can be adjusted by the operation of the servo motor, so as to improve the convenience and flexibility of the surveying instrument when used.

[0015] 2. Through the arrangement of the protective cover, rubber pad, mounting plate, positioning block, positioning groove, L-shaped plate, threaded sleeve, threaded rod, hand-cranked wheel, cross bar, ball, trapezoidal plate, connecting plate, vertical rod, third spring and limit rod, the surveying instrument can be placed horizontally on the top of the box body first, then the protective cover is covered on the outside of the surveying instrument, and the two positioning blocks are respectively inserted into the inner cavities of the two positioning grooves, and then the threaded rod can be driven to rotate by turning the hand-cranked wheel, and the threaded sleeve can be driven to move horizontally to the right, so that the L-shaped plate can be driven to be clamped on the top of the mounting plate, and at the same time, the sliding plate can be driven to move synchronously to the right by the horizontal right movement of the threaded sleeve, and the ball can be pushed to move to the right by the cross bar, so that the trapezoidal plate can be squeezed to move vertically upward, and the limit rod can be pushed to move upward, so that the limit rod fits on the right side of the surveying instrument, thereby realizing convenient installation of the surveying instrument, and at the same time, the protective cover can be used to protect the surveying instrument to prevent the surveying instrument from being damaged by external force, which is beneficial to improving the service life of the surveying instrument. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional diagram of this embodiment;

[0017] Figure 2 This is a schematic diagram of the main structure of this embodiment;

[0018] Figure 3 It is a right side view of the component box body of this embodiment;

[0019] Figure 4 This is a schematic diagram of the three-dimensional structure of the component support column of this embodiment;

[0020] Figure 5 for Figure 2 A magnified view of the structure at center A;

[0021] Figure 6 for Figure 2 A magnified view of the structure at B in the middle;

[0022] Figure 7 for Figure 2 Enlarged view of the structure at C in the middle.

[0023] In the figure: 1, shell; 2, box body; 3, surveying instrument; 4, protective cover; 5, rubber pad; 6, round plate; 7, annular partition; 8, square hole round tube; 9, square rod; 10, servo motor; 11, transmission gear; 12, driven gear; 13, electric rod; 14, handle; 15, mounting plate; 16, L-shaped plate; 17, positioning block; 18, positioning groove; 19, threaded sleeve; 20, threaded rod; 21, hand wheel; 22, limit rod; 23, trapezoidal plate; 24, vertical rod; 25, third spring; 26, round ball; 27, cross rod; 28, sliding plate; 29, horizontal square column; 30, support column; 31, support plate; 32, second T-shaped rod; 33, limit plate; 34, second spring; 35, first T-shaped rod; 36, limit ring; 37, first spring; 38, rectangular plate. DETAILED DESCRIPTION

[0024] See also Figures 1 to 7 , the utility model provides the following technical solutions:

[0025] A house surveying and mapping auxiliary positioning tool comprises a shell 1, an annular partition 7 is fixedly connected at the middle position of the inner cavity of the shell 1, and two electric rods 13 arranged on the left and right are fixedly installed on the top of the annular partition 7, a first circular hole is opened at the top of the shell 1 near the left and right sides, the power ends of the two electric rods 13 respectively penetrate the inner cavities of adjacent first circular holes, and are fixedly connected to the same circular plate 6, and a first bearing is fixedly connected at the center of the circular plate 6, the inner cavity of the first bearing is rotatably connected to a square hole circular tube 8, and the top of the square hole circular tube 8 is fixedly connected to a box body 2, a second circular hole is opened at the center of the top of the shell 1, and the bottom end of the square hole circular tube 8 penetrates the second circular hole and the inner cavity of the annular partition 7, and the square hole circular tube 8 is fixedly connected to the inner cavity of the annular partition 7. A square rod 9 is slidably fitted in the inner cavity of the tube 8, and the bottom end of the square rod 9 is rotatably connected to the bottom of the inner cavity of the shell 1. A servo motor 10 is fixedly installed near the right side of the inner cavity of the shell 1, and the power output end of the servo motor 10 is fixedly connected to a transmission gear 11, and a driven gear 12 is meshed on the left side of the transmission gear 11, and the driven gear 12 is sleeved and fixed on the outer wall of the square rod 9. A surveying instrument 3 is fitted on the top of the box body 2, and a protective cover 4 is provided on the outer cover of the surveying instrument 3. A rubber pad 5 is fixedly connected to the inner wall of the protective cover 4, and the rubber pad 5 and the surveying instrument 3 are fitted together. A locking mechanism is provided between the protective cover 4 and the box body 2, and a handle 14 is fixedly connected to the left and right sides of the shell 1 near the top.

[0026] Square holes are provided on the outer walls of the shell 1 near the bottom, and the inner cavity of the square holes is slidably connected to a horizontal square column 29, one end of the four horizontal square columns 29 is fixedly connected to a rectangular plate 38, and the other end of the four horizontal square columns 29 is fitted with a support column 30, the inner side of the four support columns 30 is provided with a T-shaped slide groove, and the inner cavity of the T-shaped slide groove is slidably connected to a T-shaped slider, the four T-shaped sliders are respectively fixedly connected to the adjacent horizontal square columns 29, the bottom ends of the four support columns 30 are fixedly connected to a support plate 31, the top of the horizontal square column 29 is provided with a first blind hole arranged on the left and right, the outer wall of the shell 1 is fixedly connected to a fixing plate, and the fixing plate is provided with a first through hole, the inner cavity of the first through hole is slidably connected to a first T-shaped rod 35, and the bottom end of the first T-shaped rod 35 is inserted into the inner cavity of one of the first blind holes, and the outer wall of the first T-shaped rod 35 is sleeved and fixed A limiting ring 36 is provided, and the outer wall of the first T-shaped rod 35 is sleeved with a first spring 37, and the two ends of the first spring 37 are fixedly connected to the fixing plate and the limiting ring 36 respectively. A cavity is provided on the support column 30, and the inner cavity of the cavity is slidably connected to the limiting plate 33, and a second T-shaped rod 32 is passed through and fixed on the limiting plate 33. Second through holes are provided on the left and right sides of the cavity, and the outer wall of the shell 1 is provided with two second blind holes distributed up and down, one end of the second T-shaped rod 32 passes through the adjacent second through holes and is inserted into the inner cavity of one of the second blind holes, and the other end of the second T-shaped rod 32 passes through the inner cavity of the adjacent second through holes and extends to the outside of the support column 30, and the outer wall of the second T-shaped rod 32 is sleeved with a second spring 34, and the two ends of the second spring 34 are fixedly connected to the inner wall of the cavity and the limiting plate 33 respectively, which is beneficial to improve the stability of the shell 1 when it is placed horizontally.

[0027] The locking mechanism includes a mounting plate 15, and the mounting plate 15 is fixedly connected to the left side of the protective cover 4 and is fitted with the top of the box body 2. The top of the box body 2 is provided with two positioning grooves 18 distributed front and back, and the inner cavity of the positioning groove 18 is plugged with a positioning block 17. The tops of the two positioning blocks 17 are fixedly connected to the mounting plate 15. An L-shaped plate 16 is fitted on the left side of the top of the mounting plate 15. The top of the box body 2 is provided with a rectangular slot adapted to the L-shaped plate 16, and the L-shaped plate 16 is provided with a rectangular slot adapted to the L-shaped plate 16. The other side passes through the rectangular slot, extends to the inner cavity of the box body 2, and is fixedly connected with a threaded sleeve 19, the inner cavity of the threaded sleeve 19 is screwed with a threaded rod 20, the left side of the box body 2 is fixedly connected with a second bearing, and the left end of the threaded rod 20 passes through the inner cavity of the second bearing and is fixedly connected with a hand-cranked wheel 21, the bottom of the threaded sleeve 19 is fixedly connected with a sliding plate 28, and the bottom of the sliding plate 28 is fixedly connected with a slider, a sliding groove is opened at the bottom of the inner cavity of the box body 2, and the slider is slidably connected to the inner cavity of the sliding groove.

[0028] A through hole is provided at the top of the box body 2 near the right side, and the inner cavity of the through hole is slidably connected to a limit rod 22, the limit rod 22 is fitted with the right side of the surveying instrument 3, the bottom end of the limit rod 22 is fixedly connected to a trapezoidal plate 23, and the right side of the trapezoidal plate 23 is fixedly connected to a connecting plate, a third through hole is provided on the connecting plate, and a vertical rod 24 is penetrated through the inner cavity of the third through hole, the two ends of the vertical rod 24 are respectively fixedly connected to the top and bottom of the inner cavity of the box body 2, the outer wall of the vertical rod 24 is sleeved with a third spring 25, and the two ends of the third spring 25 are respectively fixedly connected to the connecting plate and the inner wall of the box body 2, a sphere 26 is fitted at the bottom of the trapezoidal plate 23, and a cross bar 27 is fixedly connected to the left side of the sphere 26, and the left end of the cross bar 27 is fixedly connected to the right side wall of the sliding plate 28.

[0029] Working principle: When the utility model is in use, the support column 30 is pulled away from the shell 1, and the first T-shaped rod 35 is inserted into the inner cavity of the first blind hole on the inside, so that the ground contact area of ​​the positioning tool can be increased. Then, the second T-shaped rod 32 is inserted into the inner cavity of the second blind hole below, so that the support plate 31 can be placed on the ground to improve the stability of the positioning tool. Then, the surveying instrument 3 is placed horizontally on the top of the box body 2. Then, the protective cover 4 is covered on the outside of the surveying instrument 3, and the two positioning blocks 17 are respectively inserted into the inner cavities of the two positioning grooves 18. Subsequently, the threaded rod 20 can be driven to rotate by turning the hand-cranked wheel 21, and the threaded sleeve 19 can be driven to move horizontally to the right, so that the L-shaped plate 16 can be clamped on the top of the mounting plate 15. At the same time, the threaded sleeve 19 can be moved horizontally to the right, which can drive the sliding plate 28 to move synchronously to the right, and the cross bar 27 can push the ball 26 to move to the right, so that the trapezoidal plate 23 can be squeezed to overcome the third spring 25. The resistance moves vertically upward and pushes the limit rod 22 to move upward, so that the limit rod 22 fits on the right side of the surveying instrument 3, thereby realizing the convenient installation of the surveying instrument 3. At the same time, the protective cover 4 can be used to protect the surveying instrument 3 to prevent the surveying instrument 3 from being damaged by external force, which is beneficial to improving the service life of the surveying instrument 3. When it is necessary to adjust the height of the surveying instrument 3, the circular plate 6 can be pushed to move vertically upward by starting the electric rod 13. The circular plate 6 moves vertically upward to drive the square hole round tube 8 to move upward, and the square hole round tube 8 moves upward to drive the box body 2 to move upward, so that the height of the surveying instrument 3 can be adjusted. By starting the servo motor 10, the transmission gear 11 can be driven to rotate, and the rotation of the transmission gear 11 drives the driven gear 12 to rotate, and the rotation of the driven gear 12 drives the square rod 9 to rotate, and the rotation of the square rod 9 drives the square hole round tube 8 to rotate, and the rotation of the square hole round tube 8 drives the box body 2 to rotate, so that the surveying angle of the surveying instrument 3 can be adjusted to improve the convenience and flexibility of the surveying instrument 3 when using it.

Claims

1. A house surveying and mapping auxiliary positioning tool, comprising a housing (1), characterized in that: An annular partition (7) is fixedly connected to the middle position of the inner cavity of the shell (1), and two electric rods (13) arranged on the left and right are fixedly installed on the top of the annular partition (7). A first circular hole is opened at the top of the shell (1) near the left and right sides. The power ends of the two electric rods (13) respectively penetrate the inner cavities of adjacent first circular holes and are fixedly connected to the same circular plate (6). A first bearing is fixedly connected to the center of the circular plate (6). The inner cavity of the first bearing is rotatably connected to a square hole circular tube (8), and the top end of the square hole circular tube (8) is fixedly connected to the box body (2). A second circular hole is opened at the center of the top of the shell (1), and the bottom end of the square hole circular tube (8) penetrates the second circular hole and the inner cavity of the annular partition (7). The inner cavity of the square hole circular tube (8) is rotatably connected to the inner cavity of the first bearing. A square rod (9) is slidably fitted in the cavity, and the bottom end of the square rod (9) is rotatably connected to the bottom of the inner cavity of the shell (1). A servo motor (10) is fixedly installed near the right side of the inner cavity of the shell (1), and the power output end of the servo motor (10) is fixedly connected to a transmission gear (11). A driven gear (12) is meshed on the left side of the transmission gear (11), and the driven gear (12) is sleeved and fixed on the outer wall of the square rod (9). A surveying instrument (3) is fitted on the top of the box body (2), and a protective cover (4) is provided on the outer side cover of the surveying instrument (3). A rubber pad (5) is fixedly connected to the inner wall of the protective cover (4), and the rubber pad (5) is fitted with the surveying instrument (3). A locking mechanism is provided between the protective cover (4) and the box body (2).

2. A house surveying and mapping auxiliary positioning tool as claimed in claim 1, characterized in that: Square holes are provided on the outer walls of the shell (1) near the bottom, and the inner cavity of the square hole is slidably connected to a horizontal square column (29), one end of the four horizontal square columns (29) is fixedly connected to a rectangular plate (38), and the other end of the four horizontal square columns (29) is fitted with a support column (30), the inner side of the four support columns (30) is provided with a T-shaped slide groove, and the inner cavity of the T-shaped slide groove is slidably connected to a T-shaped slider, the four T-shaped sliders are respectively fixedly connected to adjacent horizontal square columns (29), and the bottom ends of the four support columns (30) are fixedly connected to a support plate (31).

3. A house surveying and mapping auxiliary positioning tool as claimed in claim 2, characterized in that: The top of the horizontal square column (29) is provided with first blind holes arranged on the left and right sides, the outer wall of the shell (1) is fixedly connected to a fixing plate, and the fixing plate is provided with a first through hole, the inner cavity of the first through hole is slidably connected to a first T-shaped rod (35), and the bottom end of the first T-shaped rod (35) is inserted into the inner cavity of one of the first blind holes, the outer wall of the first T-shaped rod (35) is sleeved and fixed with a limiting ring (36), and the outer wall of the first T-shaped rod (35) is sleeved with a first spring (37), and the two ends of the first spring (37) are respectively fixedly connected to the fixing plate and the limiting ring (36).

4. A house surveying and mapping auxiliary positioning tool as claimed in claim 2, characterized in that: The support column (30) is provided with a cavity, and the inner cavity of the cavity is slidably connected to a limit plate (33), a second T-shaped rod (32) is passed through and fixed on the limit plate (33), and second through holes are provided on both left and right sides of the cavity. The outer wall of the shell (1) is provided with two second blind holes distributed up and down, one end of the second T-shaped rod (32) passes through an adjacent second through hole and is inserted into the inner cavity of one of the second blind holes, and the other end of the second T-shaped rod (32) passes through the inner cavity of the adjacent second through hole and extends to the outside of the support column (30), and the outer wall of the second T-shaped rod (32) is sleeved with a second spring (34), and the two ends of the second spring (34) are respectively fixedly connected to the inner wall of the cavity and the limit plate (33).

5. The house surveying and mapping auxiliary positioning tool according to claim 1, characterized in that: The locking mechanism comprises a mounting plate (15), and the mounting plate (15) is fixedly connected to the left side of the protective cover (4) and is arranged in close contact with the top of the box body (2). The top of the box body (2) is provided with two positioning grooves (18) distributed front and back, and the inner cavity of the positioning groove (18) is plugged with a positioning block (17), and the tops of the two positioning blocks (17) are fixedly connected to the mounting plate (15). An L-shaped plate (16) is arranged in close contact with the left side of the top of the mounting plate (15), and the top of the box body (2) is provided with a rectangular slot adapted to the L-shaped plate (16), and the L-shaped plate The other side of the (16) passes through the rectangular slot, extends to the inner cavity of the box body (2), and is fixedly connected to a threaded sleeve (19), the inner cavity of the threaded sleeve (19) is threaded with a threaded rod (20), the left side of the box body (2) is fixedly connected to a second bearing, and the left end of the threaded rod (20) passes through the inner cavity of the second bearing and is fixedly connected to a hand-cranked wheel (21), the bottom of the threaded sleeve (19) is fixedly connected to a sliding plate (28), and the bottom of the sliding plate (28) is fixedly connected to a sliding block, the bottom of the inner cavity of the box body (2) is provided with a sliding groove, and the sliding block is slidably connected to the inner cavity of the sliding groove.

6. A house surveying and mapping auxiliary positioning tool as claimed in claim 5, characterized in that: A through hole is provided at the top of the box body (2) near the right side, and the inner cavity of the through hole is slidably connected to a limit rod (22), the limit rod (22) is arranged in close contact with the right side of the surveying instrument (3), the bottom end of the limit rod (22) is fixedly connected to a trapezoidal plate (23), and the right side of the trapezoidal plate (23) is fixedly connected to a connecting plate, the connecting plate is provided with a third through hole, and the inner cavity of the third through hole is penetrated by a vertical rod (24), the two ends of the vertical rod (24) are respectively fixedly connected to the top and bottom of the inner cavity of the box body (2), the outer wall of the vertical rod (24) is sleeved with a third spring (25), and the two ends of the third spring (25) are respectively fixedly connected to the connecting plate and the inner wall of the box body (2), the bottom of the trapezoidal plate (23) is fitted with a sphere (26), and the left side of the sphere (26) is fixedly connected to a cross rod (27), and the left end of the cross rod (27) is fixedly connected to the right side wall of the sliding plate (28).

7. A house surveying and mapping auxiliary positioning tool as claimed in claim 1, characterized in that: Handles (14) are fixedly connected to the left and right sides of the housing (1) near the top.

Images