Centering rod stabilizing device

Abstract

The utility model provides a centering rod stabilizing device which comprises an upper stabilizer and a lower stabilizer. The upper stabilizer comprises a fixed structure and a telescopic support arm, the lower stabilizer comprises an inclined support arm and a ground poking structure, the ground poking structure comprises a lower ground poking tiptoe, a rod body of the centering rod is fixed in the upper stabilizer, and the ground poking tiptoe of the centering rod and the lower ground poking tiptoe are concentrically arranged. According to the centering rod stabilizing device, after the upper stabilizer is fixed to the rod body of the centering rod through the fixing structure, the upper stabilizer is supported on the ground through the inclined supporting arm rotationally connected with the telescopic supporting arm of the upper stabilizer, and the centering rod stabilizing device is fixed to the ground through the ground poking structure; according to the centering rod stabilizing device, the stability of fixing the surveying and mapping centering rod by using the centering rod stabilizing device can be effectively improved, so that the surveying and mapping centering rod is effectively prevented from shaking in the stabilizing device, the situations of inaccurate RTK measurement data, unclear image RTK pictures, shaking of laser RTK laser points and the like are avoided, the surveying and mapping precision is effectively improved, and the accuracy of surveying and mapping results is ensured.

Description

Technical Field

[0001] This utility model relates to the field of surveying and mapping technology, and in particular to a centering rod stabilization device. Background Technology

[0002] With the development of RTK measurement technology, RTK measuring instruments have begun to integrate functions such as image measurement and laser measurement. Especially in laser measurement, the distance of the laser point is greatly affected by the shaking of the measuring instrument. Even a slight movement of the measuring instrument can cause a significant shift in the distance of the light point to be measured. Therefore, RTK instruments with laser measurement require high stability of the centering rod when it is perpendicular to the ground. Currently, the stability of RTK instruments with laser measurement on the market is insufficient, causing the laser point to shift, resulting in reduced mapping accuracy and affecting the mapping results. Furthermore, they cannot select different fixing methods according to different usage scenarios, resulting in poor stabilizer compatibility and affecting the user experience. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing RTK systems with laser measurement, such as insufficient stability, laser point offset, reduced mapping accuracy, impact on the mapping structure, inability to select different fixing methods according to different usage scenarios, poor stabilizer compatibility, and negative impact on user experience. This invention provides a centering rod stabilization device.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a centering rod stabilizing device, including an upper stabilizer sleeved on the rod body of the centering rod and a lower stabilizer located below the rod body of the centering rod and detachably connected to the upper stabilizer;

[0005] The upper stabilizer includes a fixed structure and several telescopic arms rotatably connected to the fixed structure. The lower stabilizer includes several inclined arms rotatably connected to the telescopic arms and a ground-piercing structure disposed at the bottom of the inclined arms. The ground-piercing structure includes a lower ground-piercing tip. The body of the centering rod is fixed inside the upper stabilizer, and the ground-piercing tip of the centering rod is concentrically arranged with the lower ground-piercing tip.

[0006] Furthermore, the fixing structure includes a fixing clamp and a locking handle for clamping the fixing clamp. The fixing clamp includes a plurality of rotating parts that rotate with the telescopic arm and a locking part for locking and fixing with the locking handle.

[0007] Furthermore, several of the telescopic arms are rotatably connected to the rotating part via a first pivot, and a first locking member passes through the locking part and is threadedly connected to the locking handle, so as to tighten the locking handle to lock the locking part and fix the rod body of the centering rod.

[0008] Furthermore, the telescopic arm is detachably connected to the inclined arm of the lower stabilizer via a second locking member.

[0009] Furthermore, the second locking member includes a nut section, a threaded section, and a rotating section disposed between the nut section and the threaded section. The locking nut is locked and fixed on the threaded section of the second locking member, and the telescopic arm is rotatably connected to the inclined arm through the rotating section.

[0010] Furthermore, the ground-piercing structure also includes a receiving groove for accommodating the ground-piercing tip of the centering rod, wherein the center of the receiving groove is recessed inward to form a hemispherical receiving space, and the ground-piercing tip of the centering rod is placed in the receiving space.

[0011] Furthermore, a number of support portions are provided on the outer edge of the receiving groove, and the support portions are rotatably connected to the bottom of the inclined support arm via a second rotating shaft.

[0012] Furthermore, the inclined support arm is also provided with a third rotating shaft for engaging and fixing with the support part, and the third rotating shaft is elastically connected to the second rotating shaft by a spring.

[0013] Furthermore, the support portion is provided with a plurality of slots for the third rotating shaft to be inserted, and the inclined support arm is also provided with a strip-shaped hole for the third rotating shaft to pass through. The third rotating shaft is inserted into the slots under the tension of the spring.

[0014] Furthermore, the number of the inclined support arms corresponds to the number of the telescopic support arms, and the number of the support portions on the receiving groove corresponds to the number of the inclined support arms.

[0015] The beneficial effects of the centering rod stabilization device provided by this utility model are as follows: After the upper stabilizer is fixed to the centering rod body using a fixed structure, the inclined support arm, which is rotatably connected to the telescopic support arm of the upper stabilizer, is supported on the ground, and the centering rod stabilization device is fixed to the ground using a ground-piercing structure. This can effectively improve the stability of the centering rod when using the centering rod stabilization device to fix the surveying centering rod, thereby effectively avoiding the situation where the surveying centering rod shakes within the stabilization device, causing the laser to move. This effectively improves the surveying accuracy and ensures the accuracy of the surveying results. Furthermore, under certain circumstances, the centering rod stabilizer can enable the centering rod to be tilted at a certain angle during measurement without the need for manual support, achieving stable and shaky operation, further meeting the needs of laser measurement.

[0016] Furthermore, by detachably connecting the lower stabilizer to the bottom of the upper stabilizer, in specific application scenarios, only the upper stabilizer needs to be used to fix the surveying centering rod. This effectively ensures the stability of the fixed surveying centering rod while expanding the application scenarios of the centering rod stabilization device, improving compatibility, and meeting customer needs for surveying in different application scenarios. Moreover, by concentrically aligning the grounding tip of the centering rod with the lower grounding tip of the grounding structure, the concentricity between the centering rod body and the upper and lower stabilizers is effectively ensured after the surveying centering rod is fixed to the centering rod stabilization device, further improving the stability of fixing the surveying centering rod using this stabilization device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the centering rod stabilizing device and the centering rod assembly provided by this utility model.

[0018] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;

[0019] Figure 3 for Figure 1 A partial enlarged view of point B in the middle;

[0020] Figure 4 for Figure 1 A partial enlarged view of point C in the middle;

[0021] Figure 5 This is a cross-sectional view of the centering rod stabilizing device provided by this utility model;

[0022] Figure 6 for Figure 5 A magnified view of a section at point D;

[0023] Figure 7 This is a schematic diagram of the centering rod stabilizing device provided by this utility model in its stowed state;

[0024] Figure 8 This is a schematic diagram of the assembly of the upper stabilizer and the centering rod in the centering rod stabilization device provided by this utility model.

[0025] Figure 9 This is an exploded view of the lower stabilizer and the connecting component in the centering rod stabilization device provided by this utility model;

[0026] Figure 10 This is an assembly diagram of the lower stabilizer and the connecting component in the centering rod stabilizing device provided by this utility model;

[0027] Figure 11 This is a cross-sectional view of the lower stabilizer and the adapter component assembled in the centering rod stabilizing device provided by this utility model.

[0028] Figure 12 This is a schematic diagram of the structure of the lower stabilizer and the centering rod for mounting the adapter in the centering rod stabilization device provided by this utility model.

[0029] In the picture:

[0030] 100 - Centering rod stabilizing device, 200 - Centering rod, 201 - Ground-piercing toe,

[0031] 10-Upper stabilizer, 11-Fixing structure, 111-Fixing clamp, 112-Locking handle, 113-Rotating part, 114-Locking part, 115-First rotating shaft, 116-First locking element, 12-Telescopic support arm

[0032] 20 - Lower stabilizer, 21 - Angled support arm, 211 - Strip hole, 22 - Ground-piercing structure, 221 - Receiving groove,

[0033] 222-Support part, 2221-Slot, 223-Second rotating shaft, 224-Third rotating shaft, 225-Spring,

[0034] 23-Second locking element, 231-Nut section, 232-Threaded section, 233-Rotating section, 24-Piercing foot, 30-Adapter component, 31-Hemispherical rotating part, 32-Stud part, 40-Fixing cover, 41-Third locking element. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0036] See Figure 1-11The present invention provides a centering rod stabilizing device 100, which includes an upper stabilizer 10 sleeved on the rod body of the centering rod 200 and a lower stabilizer 20 located below the rod body of the centering rod 200 and detachably connected to the upper stabilizer 10. The upper stabilizer 10 includes a fixed structure 11 and a plurality of telescopic arms 12 rotatably connected to the fixed structure 11. The lower stabilizer 20 includes a plurality of inclined arms 21 rotatably connected to the telescopic arms 12 and a ground-piercing structure 22 disposed at the bottom of the inclined arms 21. The ground-piercing structure 22 includes a lower ground-piercing tip 24. The rod body of the centering rod 200 is fixed inside the upper stabilizer 10, and the ground-piercing tip 201 of the centering rod 200 and the lower ground-piercing tip 24 are concentrically arranged. The centering rod stabilizing device 100 provided by this utility model fixes the upper stabilizer 10 to the rod body of the centering rod 200 using a fixing structure 11. The inclined support arm 21, which is rotatably connected to the telescopic support arm 12 of the upper stabilizer 10, supports the centering rod stabilizing device 100 on the ground. The telescopic support arm 12 and the inclined support arm 21 of the centering rod stabilizing device 100 are in the unfolded state using a ground-piercing structure 22. Since each section of the multi-section telescopic arm is tightly fitted, a certain force is required to compress or extend it. Utilizing the principle of frictional damping, it can freely extend and retract by simply compressing or pulling both ends. Therefore, under this force state, the three telescopic support arms 12 support the centering rod 200 in a tower-like shape, keeping the centering rod 200 stable in an upright state, thereby effectively improving the stability of the centering rod 200. The centering rod 200 will not shake when there is no external force. This static and stable state can greatly improve the measurement accuracy.

[0037] By fixing the centering rod stabilizing device 100 to the ground and securing the surveying centering rod 200, the stability of the surveying centering rod 200 can be effectively improved. This effectively prevents the surveying centering rod 200 from shaking within the stabilizing device, thus avoiding laser movement and improving surveying accuracy. Furthermore, under specific conditions, the centering rod stabilizer 100 allows the centering rod 200 to remain stable and undisturbed even when tilted at a certain angle during measurement, without the need for manual support, further meeting the needs of laser measurement. In addition, by detachably connecting the lower stabilizer 20 to the bottom of the upper stabilizer 10, in specific usage scenarios, only the upper stabilizer 10 is needed to fix the surveying centering rod 200. This effectively ensures the stability of the fixed surveying centering rod 200 while enriching the application scenarios of the centering rod stabilizing device 100, improving compatibility, and meeting customer surveying needs in different usage scenarios. Furthermore, by concentrically setting the ground-piercing tip 201 of the centering rod 200 with the lower ground-piercing tip 24 of the ground-piercing structure 22, the concentricity between the rod body of the centering rod 200 and the upper stabilizer 10 and the lower stabilizer 20 after the centering rod 200 is fixed to the centering rod stabilizing device 100 can be effectively guaranteed, thereby further improving the stability of fixing the centering rod 200 using the centering rod stabilizing device 100.

[0038] like Figure 1 and Figure 2 As shown, the fixing structure 11 includes a fixing clamp 111 and a locking handle 112 for clamping the fixing clamp 111. The fixing clamp 111 includes multiple rotating parts 113 that rotate with the telescopic arms 12 and a locking part 114 for locking and fixing with the locking handle 112. In the embodiment provided by this utility model, the multiple telescopic arms 12 are rotatably connected to the rotating parts 113 via a first rotating shaft 15. A first locking member 116 passes through the locking part 114 and is threadedly connected to the locking handle 112, so as to tighten the locking handle to lock the locking part 114 and fix the rod body of the centering rod 200. The upper stabilizer 10 provided by this utility model includes three telescopic arms 12 rotatably connected to the fixing clamp 111, of which two telescopic arms 12 are rotatably connected to the rotating parts 113 of the fixing frame via the first rotating shaft 15, and the top end of the other telescopic arm 12 is installed in the locking part 114.

[0039] By using bolts, studs, and pins as locking components, which pass through the top of the telescopic arm 12 and extend beyond the locking part 114, the telescopic arm 12 is rotatably connected to the locking part 114. Subsequently, after the locking handle 112 is threadedly connected to the first locking component 116, turning the locking handle 112 causes it to press against the locking part 114, thereby clamping the centering rod 200 and fixing it within the upper stabilizer 10. This effectively ensures the stability of the fixed connection between the centering rod 200 and the upper stabilizer 10. Furthermore, by turning the locking nut in the opposite direction, the fixed connection between the centering rod 200 and the upper stabilizer 10 is released, allowing adjustment of the relative height between the centering rod 200 and the upper stabilizer 10 to meet the user's surveying needs at different surveying heights.

[0040] like Figure 1 , such as 4 and Figure 8 As shown, the telescopic support arm 12 provided by this utility model is detachably connected to the inclined support arm 21 of the lower stabilizer 20 via the second locking member 23. In other embodiments provided by this utility model, when surveying is required in mud or soil, the second locking member 23 is first removed from the telescopic support arm 12 and the inclined support arm 21 to release the rotational connection between the telescopic support arm 12 and the inclined support arm 21. Then, the bottom of the telescopic support arm 12 in the upper stabilizer 10 is inserted into the ground, and the ground-piercing tip 201 of the surveying centering rod 200 is inserted into the ground. This effectively utilizes the stability principle of a triangle to stably fix the surveying centering rod 200 within the upper stabilizer 10, effectively preventing the centering rod 200 from swaying within the upper stabilizer 10 and causing laser deviation. This also enriches the application scenarios of the centering rod stabilization device 100, improves compatibility, and meets the surveying needs of customers in different application scenarios.

[0041] like Figure 1 , Figure 4 and Figure 5As shown, the second locking member 23 provided by this utility model includes a nut section 231, a threaded section 232, and a rotating section 233 disposed between the nut section 231 and the threaded section 232. The locking nut is locked and fixed on the threaded section 232 of the second locking member 23, and the telescopic support arm 12 is rotatably connected to the inclined support arm 21 through the rotating section 233. In the embodiment provided by this utility model, the RTK measuring instrument basically requires the centering rod 200 to be perpendicular to the ground and stable without shaking during measurement. With the integration of laser ranging function into the RTK measuring instrument, laser RTK sometimes tilts and stabilizes the centering rod 200 at a certain angle for measurement as needed. The centering rod 200 stabilizer provided by this utility model also meets this requirement. By using the second locking member 23 to rotatably connect the telescopic arm 12 and the inclined arm 21, the user can push the centering rod 200 during use, causing the telescopic arm 12 to tilt the inclined arm 21 at a certain angle relative to the ground. This allows the telescopic arms to shorten and extend in different directions, thus meeting the user's needs for surveying in different orientations. This further enriches the usage of the centering rod stabilization device 100, improves compatibility, and meets the customer's needs for surveying in different orientations. By using a locking nut to lock and fix it to the threaded section 232 of the second locking member 23, the stability of the second locking member 23 passing through the top of the inclined arm 21 and fixed to the rotating section 233 can be effectively ensured.

[0042] like Figure 1 , Figure 3 and Figure 6As shown, the ground-piercing structure 22 also includes a receiving groove 221 for accommodating the ground-piercing tip 201 of the centering rod 200. The center of the receiving groove 221 is recessed inward to form a hemispherical receiving space, and the ground-piercing tip 201 of the centering rod 200 is placed in the receiving space. By placing the ground-piercing tip 201 of the centering rod 200 in the hemispherical receiving space formed by the recessed center of the receiving groove 221, the ground-piercing tip 201 of the centering rod 200 and the lower ground-piercing tip 24 of the ground-piercing structure 22 can be concentrically set, and the concentricity between the rod body of the centering rod 200 and the upper stabilizer 10 and the lower stabilizer 20 can be effectively guaranteed after the surveying centering rod 200 is fixed to the centering rod stabilizing device 100, thereby further improving the stability of fixing the surveying centering rod 200 using the centering rod stabilizing device 100. Furthermore, multiple support portions 222 are provided on the outer edge of the receiving groove 221. The support portions 222 are rotatably connected to the bottom of the inclined arm 21 via the second pivot 223. By rotatably connecting the support portions 222 to the bottom of the inclined arm 21 via the second pivot 223, after the user operates the telescopic arm 12 in the upper stabilizer 10 to a suitable height, the inclined arm 21 can be stepped on downwards to rotate relative to the support portions 222 and the telescopic arm 12, thereby causing the inclined arm 21 to abut against the ground. This allows the lower stabilizer 20 to further fix the rod of the surveying centering rod 200.

[0043] like Figure 1 , Figure 3 and Figure 6As shown, in the embodiment provided by this utility model, the inclined support arm 21 is further provided with a third rotating shaft 224 for engaging and fixing with the support portion 222. The third rotating shaft 224 is elastically connected to the second rotating shaft 223 via a spring 225. The support portion 222 is provided with a plurality of slots 2221 for the third rotating shaft 224 to be inserted into, and the inclined support arm 21 is also provided with a strip-shaped hole 211 for the third rotating shaft 224 to pass through. The third rotating shaft 224 is inserted into the slots 2221 under the tension of the spring 225. In the embodiment provided by this utility model, the support part 222 is provided with two slots 2221. When the user steps down on the inclined support arm 21, the inclined support arm 21 rotates relative to the support part 222 and the telescopic support arm 12 and comes into contact with the ground. The second rotating shaft 223 is embedded in the slot 2221 at the bottom under the elastic force of the spring 225, thereby effectively ensuring the stability of the fixed engagement between the inclined support arm 21 and the support part 222 that accommodates the groove 221, and avoiding the situation where the inclined support arm 21 rotates relative to the support part 222. After the user completes the survey, by manually pulling the third pivot 224 to the top of the slot 211, the third pivot 224 disengages from the bottom slot 2221, and the inclined arm 21 is in a rotatable state with the second pivot 223 as its axis. At this time, pressing the end of the inclined arm 21 causes the inclined arm 21 to rotate relative to the support 222 and fit against the rod of the centering rod 200. At this time, the second pivot 223 is inserted into the slot 2221 at the top of the support 222 under the elastic force of the spring 225, thus completing the storage operation. The support 222 is an arc-shaped support 222, which effectively improves the smoothness of the rotation of the inclined arm 21 relative to the support 222, and provides the second pivot 223 with the space to move within the inclined arm 21 relative to the inclined arm 21 through the slot.

[0044] like Figure 1 and Figure 7 As shown, in the embodiment provided by this utility model, the number of inclined support arms 21 corresponds to the number of telescopic support arms 12, and the number of support portions 222 on the receiving groove 221 corresponds to the number of inclined support arms 21. The fixing clamp 111 provided by this utility model is provided with three telescopic support arms 12, each telescopic support arm 12 is rotatably connected to an inclined support arm 21, and each inclined support arm 21 is rotatably connected to a support portion 222. Therefore, the number of inclined support arms 21 and the number of support portions 222 provided by this utility model are three, thereby effectively utilizing the stability principle of a triangle to further improve the stability of fixing the surveying centering rod 200 using the centering rod stabilizing device 100, effectively preventing the surveying centering rod 200 from shaking within the stabilizing device, which could lead to laser movement, effectively improving surveying accuracy and ensuring the accuracy of the surveying results.

[0045] like Figure 9-12As shown, in other embodiments provided by this utility model, a connecting component 30 is also provided in the hemispherical receiving space formed by the inward indentation at the center of the receiving groove 221. The connecting component 30 includes a hemispherical rotating part 31 adapted to the shape of the hemispherical receiving space and a stud part 32 provided on the rotating part 113. The rod body of the surveying centering rod 200 is threadedly connected to the connecting component 30 through the stud part 32, thereby realizing the operation of connecting the surveying centering rod 200 using the lower stabilizer 20. Under the action of the rotating part 113 of the connecting component 30, the centering rod 200 can be pushed to tilt the centering rod 200 at a certain angle relative to the ground, thereby meeting the user's needs for surveying in different orientations, further enriching the usage of the centering rod stabilization device 100, improving compatibility, and meeting the customer's needs for surveying in different orientations. The adapter 30 is fixed to the receiving groove 221 of the lower stabilizer 20 by the fixing cover 40. The fixing cover 40 is provided with a plurality of fixing holes for the third locking member 41 to pass through. By using the third locking member 41, such as bolts, studs and pins, to pass through the fixing holes on the fixing cover 40 and lock it in the receiving groove 221, the fixing cover 40 can provide a downward pressing force on the rotating part 113 of the adapter 30, thereby realizing the operation of installing the rotating part 113 in the receiving groove 221 and ensuring stability.

[0046] like Figure 7 As shown, when there are no requirements for the swaying and stability of the centering rod, the tripod stabilizer can be folded and retracted, and can then be used as a regular centering rod. This further enriches the application scenarios of the centering rod stabilization device 100, improves compatibility, and meets the surveying needs of customers in different application scenarios.

[0047] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A centering rod stabilizing device, characterized in that, It includes an upper stabilizer (10) sleeved on the body of the centering rod and a lower stabilizer (20) located below the body of the centering rod and detachably connected to the upper stabilizer (10); The upper stabilizer (10) includes a fixed structure (11) and several telescopic arms (12) rotatably connected to the fixed structure (11). The lower stabilizer (20) includes several inclined arms (21) rotatably connected to the telescopic arms (12) and a ground-piercing structure (22) disposed at the bottom of the inclined arms (21). The ground-piercing structure (22) includes a lower ground-piercing tip (24). The body of the centering rod is fixed inside the upper stabilizer (10), and the ground-piercing tip (201) of the centering rod and the lower ground-piercing tip (24) are concentrically arranged.

2. The centering rod stabilizing device as described in claim 1, characterized in that, The fixing structure (11) includes a fixing clamp (111) and a locking handle (112) for clamping the fixing clamp (111). The fixing clamp (111) includes a plurality of rotating parts (113) rotatably connected to the telescopic arm (12) and a locking part (114) for locking and fixing with the locking handle (112).

3. The centering rod stabilizing device as described in claim 2, characterized in that, Several of the telescopic arms (12) are rotatably connected to the rotating part (113) via a first pivot (115). A first locking member (116) passes through the locking part (114) and is threadedly connected to the locking handle (112) so as to tighten the locking handle (112) to lock the locking part (114) and fix the rod body of the centering rod.

4. The centering rod stabilizing device as described in claim 1, characterized in that, The telescopic arm (12) is detachably connected to the inclined arm (21) of the lower stabilizer (20) via the second locking member (23).

5. The centering rod stabilizing device as described in claim 4, characterized in that, The second locking member (23) includes a nut section (231), a threaded section (232), and a rotating section (233) disposed between the nut section (231) and the threaded section (232). The locking nut (234) is locked and fixed on the threaded section (232) of the second locking member (23), and the telescopic arm (12) is rotatably connected to the inclined arm (21) through the rotating section (233).

6. The centering rod stabilizing device as described in claim 1, characterized in that, The ground-piercing structure (22) further includes a receiving groove (221) for accommodating the ground-piercing tip (201) of the centering rod. The center of the receiving groove (221) is recessed inward to form a hemispherical receiving space, in which the ground-piercing tip (201) of the centering rod is placed.

7. The centering rod stabilizing device as described in claim 6, characterized in that, A plurality of support portions (222) are provided on the outer edge of the receiving groove (221), and the support portions (222) are rotatably connected to the bottom of the inclined support arm (21) through a second rotating shaft (223).

8. The centering rod stabilizing device as described in claim 7, characterized in that, The inclined support arm (21) is also provided with a third rotating shaft (224) for engaging and fixing with the support part (222). The third rotating shaft (224) is elastically connected to the second rotating shaft (223) through a spring (225).

9. A centering rod stabilizing device as described in claim 8, characterized in that, The support (222) is provided with a plurality of slots (2221) for the third rotating shaft (224) to be inserted, and the inclined support arm (21) is also provided with a strip hole (211) for the third rotating shaft (224) to pass through. The third rotating shaft (224) is inserted into the slots (2221) under the elastic force of the spring (225).

10. A centering rod stabilizing device as described in claim 7, characterized in that, The number of the inclined support arms (21) corresponds to the number of the telescopic support arms (12), and the number of the support portions (222) on the receiving groove (221) corresponds to the number of the inclined support arms (21).

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