A device for measuring and detecting the laying of a well

Abstract

The application relates to the technical field of measuring devices, in particular to a well masonry measuring and detecting device. The device comprises a positioning assembly, an extension device is slidably inserted into the positioning assembly, the extension device comprises a vertical rod, a first gear rack and a limiting frame, the first gear rack is fixedly installed on the two sides of the vertical rod, the limiting frame is fixedly installed on the two sides of the vertical rod in a symmetrical mode, and the limiting frame is located at the side end of the first gear rack; the positioning assembly comprises a lower edge component and a supporting device, the lower edge component is fixedly installed at the bottom end of the supporting device, the lower edge component comprises a transmission device and a detecting device, the detecting device is rotatably installed on the outer ring of the transmission device, the detecting device comprises a positioning ring, a conical gear ring and a laser range finder, the conical gear ring is fixedly installed at the top end of the positioning ring, and the laser range finder is fixedly installed at the two sides of the positioning ring. Through the arrangement of the extension device and the positioning assembly, the purposes of alignment detection and interval marking of the detecting well detecting device during use are achieved.

Description

Technical Field

[0001] This invention relates to the field of measuring device technology, specifically a well construction measuring and testing device. Background Technology

[0002] Well construction is a common construction activity in municipal engineering, water conservancy engineering, and building construction. In well construction projects (such as inspection wells, valve wells, drainage wells, etc.), the data that needs to be tested mainly include material quality, geometric dimensions, masonry technology, waterproof performance, structural strength, functionality, and safety acceptance.

[0003] During the inspection of well construction projects, a variety of testing devices and instruments are usually used to ensure that the construction quality meets the specifications. By testing the well construction project with testing devices, the quality of well construction can be effectively controlled and the later defects (such as settlement and leakage) can be reduced.

[0004] For example, a well construction measurement and testing device with Chinese patent publication number CN219736180U includes a base, a vertical rod, a locking pin, a rolling bearing, multiple horizontal rods, multiple end caps, and multiple detectors. By rotating the horizontal rods, the multiple detectors make circular motions at the same horizontal position to detect the inner wall of the well and measure data such as the axial position, roundness, and diameter of the well. A bubble level is provided on the base to facilitate the vertical fixation of the vertical rod. Multiple through holes are evenly arranged on the vertical rod, allowing the locking pin to be inserted into any through hole to adjust the height of the rolling bearing.

[0005] Currently, the inspection devices for manholes on the market use measuring tapes or leveling rods for measurement, and require workers to enter the manholes for construction. As a result, existing manhole inspection devices cannot perform alignment detection and interval marking functions. Therefore, an improved device is needed to address these issues. Summary of the Invention

[0006] To address the problems in the prior art, the present invention provides a well construction measurement and testing device.

[0007] The technical solution adopted by this invention to solve its technical problem is: a well construction measurement and detection device, including a positioning component, an extension device slidably inserted inside the positioning component, the extension device including a vertical rod, a first rack and a limiting frame, the first rack being fixedly installed on both sides of the vertical rod, the limiting frame being symmetrically fixedly installed on both sides of the vertical rod, and the limiting frame being located at the side end of the first rack, the positioning component including a lower edge component and a support device, the lower edge component being fixedly installed at the bottom end of the support device, the lower edge component including a transmission device and a detection device, the detection device being rotatably installed on the outer ring of the transmission device, the detection device including a positioning ring, a conical toothed ring and a laser rangefinder, the conical toothed ring being fixedly installed at the top of the positioning ring, and the laser rangefinder being fixedly installed on both sides of the positioning ring.

[0008] Specifically, the transmission device includes a marker, a first gear, an extension base, a second gear, a worm, a third gear, a fourth gear, a bevel gear, a cam, a locking key, a positioning frame, a support ring, a contact stop, a first spring, and a photoelectric sensor. The locking key is symmetrically fixedly installed on the inner ring of the support ring. The positioning frame is fixedly installed on both sides of the top of the support ring. The contact stop is slidably inserted into the top of the positioning frame. The marker is fixedly installed inside the contact stop. The first spring is fixedly installed between the positioning frame and the contact stop. The photoelectric sensor is fixedly installed on the top of the positioning frame away from the contact stop. The extension base is symmetrically fixedly installed at both ends of the top of the support ring. The first gear is rotatably installed between the two extension bases. The cam is fixedly installed on the side end of the first gear. The second gear is symmetrically rotatably installed on the side end of the extension base away from the first gear. The worm is fixedly installed between the two second gears. The third gear is rotatably installed on the side end of the extension base near the worm. The bevel gear is rotatably installed on the inner bottom end of the extension base. The fourth gear is fixedly installed at the center of the end of the bevel gear away from the first gear.

[0009] Specifically, the support device includes an extension slide rod, a handle, a drive motor, a support top frame, a special-shaped connecting rod, a fifth gear, a connecting rope, a second rack, a second spring, a contact frame, and a positioning frame. The drive motor is symmetrically and fixedly installed at the top of the support top frame. The connecting rope is fixedly installed on the drive motor. The handle is rotatably installed at the top front end of the support top frame. The fifth gear is fixedly installed at the bottom center of the handle. The second rack is symmetrically and slidably inserted into the bottom end of the support top frame. The special-shaped connecting rod is fixedly installed at the end of the second rack away from the fifth gear. The contact frame is fixedly installed at the end of the special-shaped connecting rod away from the fifth gear. The second spring is symmetrically and fixedly installed at both ends inside the support top frame. The extension slide rod slides through both ends of the support top frame and is connected to the second spring. The positioning frame is fixedly installed at the bottom of the end of the extension slide rod away from the support top frame.

[0010] Specifically, the vertical rod is slidably inserted into the inner center of the support top frame, the positioning ring is rotatably sleeved on the outer ring of the support ring, the second gear meshes with the first gear, the third gear meshes with the fourth gear, the bevel gear meshes with the bevel gear ring, the key is slidably inserted into the inside of the limiting frame, the top end of the support ring is connected to the bottom end of the connecting rope, and the fifth gear meshes with the second rack.

[0011] Specifically, scale lines are marked on both sides of the extension slide and at both ends of the vertical rod, and pointers are fixedly installed on the top of both sides of the contact frame.

[0012] Specifically, the support frame has through holes at both ends, the drive motor has a shaft fixedly installed at the center of its side end, and the shaft is connected to the connecting rope. The laser rangefinder and the photoelectric sensor are wirelessly connected.

[0013] Specifically, a worm gear is rotatably mounted on the top side of the extended base frame near the fourth gear, and the worm meshes with the worm gear. The transmission ratio between the first gear and the second gear is 1:20. A key is fixedly mounted on the bottom end of the contact stop, and a slot is opened inside the top end of the positioning frame.

[0014] Specifically, the limiting frame has a vertical groove inside that matches the key, the cam is aligned with the contact stop, and the end of the contact stop near the cam is set in an arc shape.

[0015] Specifically, the positioning frame is fitted to the outer surface of the inspection well, the contact frame is fitted to the inner surface of the inspection well, the bottom end of the supporting top frame is symmetrically provided with sleeves adapted to the irregular connecting rod, and the inner center of the supporting top frame is provided with a square hole adapted to the vertical rod and the limiting frame.

[0016] Specifically, the positioning frame also includes a plastic washer and a handle. The plastic washer is fixedly installed on the inner side of the positioning frame, and the handle is fixedly installed on the outer side of the positioning frame.

[0017] The beneficial effects of this invention are: First, this invention allows the connecting rope to be lowered when the drive motor is running, causing the support ring to move downwards. This allows the first gear to move along the surface of the first rack, which in turn causes the cam to move the contact stop bar left and right. As a result, the marker pen can reciprocate across the surface of the vertical rod, allowing markings to be made at different heights on the vertical rod. This makes it convenient for workers to mark at different heights in the inspection well, completing the work of interval marking.

[0018] Second, this invention allows the contact stop to contact the photoelectric sensor during displacement, thereby activating the laser rangefinder and enabling it to perform detection work. Simultaneously, the rotation of the first gear drives the rotation of the second gear, which in turn drives the rotation of the third, fourth, and bevel gears via a worm gear. The rotation of the bevel gear ring causes the laser rangefinder to rotate along the axial direction of the support ring. As the laser rangefinder moves downward, it can rotate around its axis, allowing it to be positioned at the center of the inspection well for circular rotation detection, thus completing the alignment detection work inside the inspection well. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is a three-dimensional structural diagram of the main body from a frontal perspective in this invention; Figure 2 This is a three-dimensional structural diagram of the extension device from the front view in this invention; Figure 3 This is a three-dimensional structural diagram of the positioning component from a frontal view in this invention; Figure 4 This is a three-dimensional structural diagram of the lower edge component from the front view in this invention; Figure 5 This is a partial cross-sectional schematic diagram of the transmission device in this invention; Figure 6 This is a three-dimensional structural diagram of the detection device from the front view in this invention; Figure 7 This is a partial cross-sectional schematic diagram of the support device in this invention; Figure 8 This is a frontal perspective three-dimensional structural diagram of the second embodiment of the positioning frame in this invention.

[0021] In the diagram: 1-Extension device, 2-Positioning component, 3-Inspection well, 4-Vertical rod, 5-First rack, 6-Limiting frame, 7-Lower edge component, 8-Supporting device, 9-Transmission device, 10-Detection device, 11-Marker, 12-First gear, 13-Extension base frame, 14-Second gear, 15-Worm gear, 16-Third gear, 17-Fourth gear, 18-Bevel gear, 19-Cam, 20-Key, 21-Positioning frame, 2 2-Support ring, 23-Contact stop bar, 24-First spring, 25-Photoelectric sensor, 26-Positioning ring, 27-Conical gear ring, 28-Laser rangefinder, 29-Extension slide bar, 30-Grip, 31-Drive motor, 32-Support top frame, 33-Irregular connecting rod, 34-Fifth gear, 35-Connecting rope, 36-Second rack, 37-Second spring, 38-Contact frame, 39-Positioning frame, 40-Plastic washer, 41-Handle. Detailed Implementation

[0022] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0023] The invention will be further described below with reference to the accompanying drawings. Example

[0024] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 6 As shown, a well construction measurement and testing device of the present invention includes a positioning component 2. An extension device 1 is slidably inserted into the positioning component 2. The extension device 1 includes a vertical rod 4, a first rack 5, and a limiting frame 6. The first rack 5 is fixedly installed on both sides of the vertical rod 4, and the limiting frame 6 is symmetrically fixedly installed on both sides of the vertical rod 4, with the limiting frame 6 located at the side end of the first rack 5. The positioning component 2 includes a lower edge component 7 and a support device 8. The lower edge component 7 is fixedly installed at the bottom end of the support device 8. The lower edge component 7 includes a transmission device 9 and a detection device 10. The detection device 10 is rotatably installed on the outer ring of the transmission device 9. The detection device 10 includes a positioning ring 26, a conical toothed ring 27, and a laser rangefinder 28. The conical toothed ring 27 is fixedly installed at the top of the positioning ring 26, and the laser rangefinder 28 is fixedly installed on both sides of the positioning ring 26.

[0025] like Figure 5The transmission device 9 includes a marker 11, a first gear 12, an extension base 13, a second gear 14, a worm gear 15, a third gear 16, a fourth gear 17, a bevel gear 18, a cam 19, a locking key 20, a positioning frame 21, a support ring 22, a contact stop bar 23, a first spring 24, and a photoelectric sensor 25. The locking key 20 is symmetrically fixedly installed on the inner ring of the support ring 22. The positioning frame 21 is fixedly installed on both sides of the top of the support ring 22. The contact stop bar 23 is slidably inserted into the top of the positioning frame 21. The marker 11 is fixedly installed inside the contact stop bar 23. The first spring 24 is fixedly installed between the positioning frame 21 and the contact stop bar 23. The photoelectric sensor 25 is fixedly installed on the top of the positioning frame 21 away from the contact stop bar 23. At the two ends of the support ring 22, the extension base frame 13 is symmetrically fixedly installed at both ends of the top. The first gear 12 is rotatably installed between the two extension base frames 13. The cam 19 is fixedly installed on the side end of the first gear 12. The second gear 14 is symmetrically rotatably installed on the side end of the extension base frame 13 away from the first gear 12. The worm gear 15 is fixedly installed between the two second gears 14. The third gear 16 is rotatably installed on the side end of the extension base frame 13 near the worm gear 15. The bevel gear 18 is rotatably installed on the inner bottom end of the extension base frame 13. The fourth gear 17 is fixedly installed at the center of the bevel gear 18 away from the first gear 12. A rotating groove is provided at the center of the outer ring of the support ring 22 so that the positioning ring 26 can be supported to rotate on the outer ring of the support ring 22.

[0026] like Figure 7 The support device 8 includes an extension slide bar 29, a handle 30, a drive motor 31, a support top frame 32, a special-shaped connecting rod 33, a fifth gear 34, a connecting rope 35, a second rack 36, a second spring 37, a contact frame 38, and a positioning frame 39. The drive motor 31 is symmetrically and fixedly installed on the top of the support top frame 32. The connecting rope 35 is fixedly installed on the drive motor 31. The handle 30 is rotatably installed on the top front end of the support top frame 32. The fifth gear 34 is fixedly installed at the bottom center of the handle 30. The second rack 36 is symmetrically and slidably inserted into the bottom of the support top frame 32. At one end, the irregular connecting rod 33 is fixedly installed at the end of the second rack 36 away from the fifth gear 34, the contact frame 38 is fixedly installed at the end of the irregular connecting rod 33 away from the fifth gear 34, the second spring 37 is symmetrically fixedly installed at both ends inside the support top frame 32, the extension slide rod 29 slides through both ends of the support top frame 32 and is connected to the second spring 37, and the positioning frame 39 is fixedly installed at the bottom of the end of the extension slide rod 29 away from the support top frame 32. The irregular connecting rod 33 moves in the sleeve at the bottom end of the support top frame 32, so that the contact frame 38 can be supported to move in a straight line.

[0027] The vertical rod 4 is slidably inserted into the center of the support top frame 32. The positioning ring 26 is rotatably sleeved on the outer ring of the support ring 22. The second gear 14 meshes with the first gear 12, the third gear 16 meshes with the fourth gear 17, the bevel gear 18 meshes with the bevel gear ring 27, the key 20 is slidably inserted into the inside of the limiting frame 6, the top of the support ring 22 is connected to the bottom of the connecting rope 35, the fifth gear 34 meshes with the second rack 36, scale lines are marked on both sides of the extension slide rod 29 and the front and rear ends of the vertical rod 4, pointers are fixedly installed on the top of both sides of the contact frame 38, through holes are opened at both ends of the support top frame 32, a shaft is fixedly installed at the center of the side end of the drive motor 31, and the shaft is connected to the connecting rope 35, and there is wireless communication between the laser rangefinder 28 and the photoelectric sensor 25. The extension base 13 is rotatably mounted on the top side of the fourth gear 17, and the worm 15 meshes with the worm wheel. The transmission ratio of the first gear 12 to the second gear 14 is 1:20. A key is fixedly installed at the bottom of the contact stop 23, and a slot is opened inside the top of the positioning frame 21. A vertical groove adapted to the key 20 is opened inside the limiting frame 6. The cam 19 is aligned with the contact stop 23, and the end of the contact stop 23 near the cam 19 is set in an arc state. The positioning frame 39 is in contact with the outer ring surface of the inspection well 3, and the contact frame 38 is in contact with the inner ring surface of the inspection well 3. The bottom end of the supporting top frame 32 is symmetrically provided with sleeves adapted to the special-shaped connecting rod 33. A square hole adapted to the vertical rod 4 and the limiting frame 6 is opened in the center of the supporting top frame 32.

[0028] The working principle of Example 1 is as follows: In use, first pull the two positioning frames 39 away from the end of the supporting top frame 32 until they are moved to their limit position. Then, move the supporting top frame 32 to fit onto the top of the inspection well 3. After the bottom end of the supporting top frame 32 is in contact with the top end of the inspection well 3, release the positioning frames 39. The elasticity of the second spring 37 will drive the extension slide rod 29 into the interior of the supporting top frame 32, so that the positioning frame 39 can contact the outer surface of the inspection well 3, and the supporting top frame 32 can be fixed on the top end of the inspection well 3. Subsequently, the vertical rod 4 can be inserted into the square hole inside the supporting top frame 32 until the bottom end of the vertical rod 4 contacts the bottom end of the interior of the inspection well 3, so that the scale lines on the front and rear ends of the vertical rod 4 can be aligned with the top of the supporting top frame 32. After aligning the ends, the depth measurement of the inspection well 3 is completed. Then, the handle 30 can be rotated, engaging the fifth gear 34 with the two second racks 36. As the fifth gear 34 rotates, it drives the two second racks 36 to move away from the fifth gear 34 until the contact frame 38 contacts the inner surface of the inspection well 3. During this movement, the pointers on both sides of the contact frame 38 move along the scale lines on both sides of the extension slide rod 29. When the contact frame 38 contacts the inner surface of the inspection well 3, the pointers coincide with the scale lines on the surface of the extension slide rod 29, completing the measurement of the masonry thickness of the inspection well 3. Afterward, the drive motor 31 can be turned on, causing the shaft at the side of the drive motor 31 to rotate. This releases the connecting rope 35. At this time, the support ring 22 moves downwards, meshing with the first gear 12 and the first rack 5. As the support ring 22 moves downwards, the first gear 12 moves along the surface of the first rack 5, thus driving the second gear 14 and the worm 15 to rotate. The worm 15 meshes with the worm wheel on the extension base 13 near the top of the fourth gear 17, and the worm wheel is connected to the third gear 16. When the worm 15 drives the worm wheel to rotate, the worm wheel drives the third gear 16, the fourth gear 17, and the bevel gear 18 to rotate simultaneously. The bevel gear 18 then drives the bevel gear ring 27 to rotate. At this time, when the first gear 12 rotates, it also drives the cam 19 to rotate. When the protruding part of the cam 19 rotates to contact the stop... When rod 23 is engaged, it can be pressed to move the contact stop rod 23 away from the cam 19 to its limit position. This allows the contact stop rod 23 to move the marker pen 11 laterally across the scale line on the surface of the vertical rod 4, completing the marking work on the vertical rod 4. Simultaneously, when the contact stop rod 23 is pressed to its limit position by the cam 19, it can contact the photoelectric sensor 25. The photoelectric sensor 25 has a wireless signal connection with the laser rangefinder 28, so when the photoelectric sensor 25 is triggered, the laser rangefinder 28 can be activated. The laser rangefinder 28 can then emit a light signal to contact the inner wall of the inspection well 3. The laser rangefinder 28 also has an electrical connection with an external display system, allowing the data generated during its operation to be transmitted to the external display system.The inspection work of the inner wall diameter and radius of the inspection well 3 is completed. Furthermore, the connecting rope 35 is continuously released by the drive motor 31, allowing the support ring 22 to perform inspection work in different areas inside the inspection well 3. Subsequently, when the protruding part of the cam 19 rotates past the contact stop 23, the contact stop 23 loses its compressive force. The elasticity of the first spring 24 causes the contact stop 23 to quickly reset. Simultaneously, the locking key at the bottom of the contact stop 23 moves within the slot at the top of the positioning frame 21, allowing the contact stop 23 to move linearly. Furthermore, the worm gear 15, with its large lead angle, can drive the conical gear ring 27 to rotate in both directions, preventing jamming. When the inspection work inside the inspection well 3 is completed, the drive motor 31 can be activated to drive the shaft to rotate in the opposite direction, allowing the connecting rope 35 to be wound up by the shaft, causing the support ring 22 to move upwards, completing the upward displacement and reset of the support ring 22. Example

[0029] Based on Example 1, such as Figure 8 As shown, the positioning frame 39 also includes a plastic washer 40 and a handle 41. The plastic washer 40 is fixedly installed on the inner side of the positioning frame 39, and the handle 41 is fixedly installed on the outer side of the positioning frame 39.

[0030] When implementing this embodiment, when the positioning frame 39 needs to be pulled, the user can hold the handle 41 to easily pull the positioning frame 39. At the same time, when the positioning frame 39 is reset, it can drive the plastic washer 40 to contact the outer surface of the inspection well 3, thereby avoiding excessive wear of the positioning frame 39, extending the service life of the positioning frame 39, and completing the work.

[0031] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A well construction measurement and testing device, comprising a positioning component (2), wherein an extension device (1) is slidably inserted into the interior of the positioning component (2), characterized in that: The extension device (1) includes a vertical rod (4), a first rack (5) and a limiting frame (6). The first rack (5) is fixedly installed on both sides of the vertical rod (4). The limiting frame (6) is symmetrically fixedly installed on both sides of the vertical rod (4) and the limiting frame (6) is located at the side end of the first rack (5). The positioning component (2) includes a lower edge component (7) and a support device (8). The lower edge component (7) is fixedly installed at the bottom end of the support device (8). The lower edge component (7) includes a transmission device (9) and a detection device (10). The detection device (10) is rotatably installed on the outer ring of the transmission device (9). The detection device (10) includes a positioning ring (26), a conical toothed ring (27) and a laser rangefinder (28). The conical toothed ring (27) is fixedly installed at the top of the positioning ring (26), and the laser rangefinder (28) is fixedly installed on both sides of the positioning ring (26).

2. The well construction measurement and testing device according to claim 1, characterized in that: The transmission device (9) includes a marker (11), a first gear (12), an extension base (13), a second gear (14), a worm (15), a third gear (16), a fourth gear (17), a bevel gear (18), a cam (19), a locking key (20), a positioning frame (21), a support ring (22), a contact stop (23), a first spring (24), and a photoelectric sensor (25). The locking key (20) is symmetrically fixedly installed on the inner ring of the support ring (22). The positioning frame (21) is fixedly installed on both sides of the top of the support ring (22). The contact stop (23) is slidably inserted into the top of the positioning frame (21). The marker (11) is fixedly installed inside the contact stop (23). The first spring (24) is fixedly installed between the positioning frame (21) and the contact stop (23). The photoelectric sensor... (25) is fixedly installed on the top of the positioning frame (21) away from the contact stop (23). The extension base (13) is symmetrically fixedly installed on both ends of the top of the support ring (22). The first gear (12) is rotatably installed between the two extension bases (13). The cam (19) is fixedly installed on the side end of the first gear (12). The second gear (14) is symmetrically rotatably installed on the side end of the extension base (13) away from the first gear (12). The worm (15) is fixedly installed between the two second gears (14). The third gear (16) is rotatably installed on the side end of the extension base (13) near the worm (15). The bevel gear (18) is rotatably installed on the inner bottom end of the extension base (13). The fourth gear (17) is fixedly installed at the center of the end of the bevel gear (18) away from the first gear (12).

3. The well construction measurement and testing device according to claim 2, characterized in that: The support device (8) includes an extension slide bar (29), a handle (30), a drive motor (31), a support top frame (32), a special-shaped connecting rod (33), a fifth gear (34), a connecting rope (35), a second rack (36), a second spring (37), a contact frame (38), and a positioning frame (39). The drive motor (31) is symmetrically fixedly installed on the top of the support top frame (32), the connecting rope (35) is fixedly installed on the drive motor (31), the handle (30) is rotatably installed on the top front end of the support top frame (32), and the fifth gear (34) is fixedly installed in the bottom end of the handle (30). The second rack (36) is symmetrically slidably inserted into the bottom end of the support top frame (32). The irregular connecting rod (33) is fixedly installed at the end of the second rack (36) away from the fifth gear (34). The contact frame (38) is fixedly installed at the end of the irregular connecting rod (33) away from the fifth gear (34). The second spring (37) is symmetrically fixedly installed at both ends inside the support top frame (32). The extension slide rod (29) slides through both ends of the support top frame (32) and is connected to the second spring (37). The positioning frame (39) is fixedly installed at the bottom end of the extension slide rod (29) away from the support top frame (32).

4. The well construction measurement and testing device according to claim 3, characterized in that: The vertical rod (4) is slidably inserted into the center of the support top frame (32), the positioning ring (26) is rotatably sleeved on the outer ring of the support ring (22), the second gear (14) meshes with the first gear (12), the third gear (16) meshes with the fourth gear (17), the bevel gear (18) meshes with the bevel gear ring (27), the key (20) is slidably inserted into the inside of the limiting frame (6), the top end of the support ring (22) is connected to the bottom end of the connecting rope (35), and the fifth gear (34) meshes with the second rack (36).

5. The well construction measurement and testing device according to claim 4, characterized in that: The two sides of the extension slide bar (29) and the front and rear ends of the vertical bar (4) are marked with scale lines, and pointers are fixedly installed on the top of both sides of the contact frame (38).

6. The well construction measurement and testing device according to claim 5, characterized in that: The support frame (32) has through holes at both ends inside. The drive motor (31) has a shaft fixedly installed at the center of its side end, and the shaft is connected to the connecting rope (35). The laser rangefinder (28) and the photoelectric sensor (25) are connected by a wireless signal.

7. The well construction measurement and testing device according to claim 6, characterized in that: The extension base (13) is rotatably mounted on the top side end near the fourth gear (17), and the worm (15) meshes with the worm wheel. The transmission ratio between the first gear (12) and the second gear (14) is 1:

20. The bottom end of the contact stop (23) is fixedly mounted with a key, and the top end of the positioning frame (21) is provided with a slot.

8. The well construction measurement and testing device according to claim 7, characterized in that: The limiting frame (6) has a vertical groove inside that matches the key (20). The cam (19) is aligned with the contact stop (23), and the end of the contact stop (23) near the cam (19) is set in an arc state.

9. The well construction measurement and testing device according to claim 8, characterized in that: The positioning frame (39) is in contact with the outer surface of the inspection well (3), the contact frame (38) is in contact with the inner surface of the inspection well (3), the bottom end of the support top frame (32) is symmetrically provided with sleeves that are compatible with the irregular connecting rod (33), and the center of the support top frame (32) is provided with a square hole that is compatible with the vertical rod (4) and the limiting frame (6).

10. A well construction measurement and testing device according to claim 9, characterized in that: The positioning frame (39) also includes a plastic washer (40) and a handle (41). The plastic washer (40) is fixedly installed on the inner side of the positioning frame (39), and the handle (41) is fixedly installed on the outer side of the positioning frame (39).

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