Building construction monitoring support convenient to disassemble

Abstract

The utility model discloses a building construction monitoring support convenient to disassemble, which comprises a clamping bottom box arranged below a beam; the clamping screw rods are arranged at four corners of two sides of the clamping bottom box and are inserted into the clamping bottom box; the rotating sleeve is installed at the center of the lower surface of the clamping bottom box and located at the lower end of the worm, a thick spline shaft groove is formed in the upper end of the rotating sleeve, and an adjusting shaft is inserted into the thick spline shaft groove; the thin spline shaft is slidably inserted in the adjusting shaft, and a thick spline shaft is mounted above the center of the thin spline shaft; the rotating rod is arranged below the clamping bottom box, and a mounting chassis is arranged at one end of the rotating rod; the inverted-T-shaped clamping seats are arranged on the two sides of the upper portion of the clamping bottom box. By means of rotation of the rotating rod, the rotating rod can drive the clamping screw rod to rotate, then the two inverted-T-shaped clamping bases can be synchronously close to or away from a beam, the monitoring support can be conveniently disassembled and assembled, the disassembling and assembling efficiency of the monitoring support can be improved, the disassembling and assembling difficulty can be reduced, and meanwhile the clamping stability is guaranteed by means of the self-locking performance of transmission of the worm gear and the worm.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of monitoring equipment, especially a building construction monitoring support convenient to disassemble. BACKGROUND

[0002] In the building construction process, using a monitoring camera to supervise and manage the construction site can timely discover potential safety risks, such as behaviors not complying with safety regulations, equipment failure or other emergency situations, thereby effectively grasping the construction progress and construction quality and ensuring the smooth progress of the engineering project and avoiding delay of the engineering progress.

[0003] The existing monitoring support needs to drill holes on the house beam during installation and is fixed using expansion bolts, which can install the monitoring support but has high installation difficulty, and the monitoring support is also difficult to disassemble after construction, and therefore a building construction monitoring support convenient to disassemble is needed. UTILITY MODEL CONTENTS

[0004] To solve the problems in the background art, the utility model provides a building construction monitoring support convenient to disassemble.

[0005] The technical scheme of the utility model for achieving the above-mentioned purpose is a building construction monitoring support convenient to disassemble, comprising:

[0006] The clamping bottom box is arranged below the house beam, a transmission shaft is arranged at one side of the center of the inside of the clamping bottom box, a bevel gear one is installed at both sides of the center of the transmission shaft, a worm wheel is installed on the transmission shaft, a worm is arranged at one side of the worm wheel, the worm is vertically arranged and connected with the clamping bottom box through a bearing, and a fine key shaft slot is formed at the lower end of the worm;

[0007] The clamping screw is arranged at the four corners of both sides of the clamping bottom box and inserted into the clamping bottom box and connected through a bearing, a bevel gear two is installed at one end of the clamping screw and located at one side of the bevel gear one and engaged with the bevel gear one;

[0008] The rotating sleeve is installed at the center of the lower surface of the clamping bottom box and located at the lower end of the worm, a coarse key shaft slot is formed at the upper end of the rotating sleeve, an adjusting shaft is inserted and installed in the inside of the rotating sleeve and connected through a bearing, the lower end of the adjusting shaft is a square shaft, the upper end of the adjusting shaft is provided with a fine key shaft slot same as that of the worm, a connecting rod slot is formed at the lower end of the inside of the fine key shaft slot, and a thread groove is arranged in the inside of the connecting rod slot;

[0009] The fine key shaft is slidingly inserted into the fine key shaft slot of the adjusting shaft, a coarse key shaft is installed at the center of the fine key shaft, the coarse key shaft is slidingly inserted into the coarse key shaft slot, the upper end of the coarse key shaft is located at the lower end of the worm and aligned with the center of the fine key shaft slot of the lower end of the worm;

[0010] The adjusting connecting rod is slidably inserted into the connecting rod groove, the lower end of the adjusting connecting rod extends out of the adjusting shaft, and the upper end of the adjusting connecting rod is movably connected with the lower end of the fine spline shaft, the short stud is arranged on the upper end of the adjusting connecting rod, and the short stud is arranged below the threaded groove;

[0011] The rotating rod is arranged below the clamping bottom box, one end of the rotating rod is provided with a mounting base, the other end of the rotating rod is provided with a square shaft base, the square shaft base is sleeved on the square shaft at the lower end of the adjusting shaft, and the square shaft base is fixed on the square shaft by means of a pin bolt;

[0012] The inverted T-shaped clamping seat is arranged on the upper side of the clamping bottom box, a plurality of angle support plates are arranged on the outer side of the upper side of the inverted T-shaped clamping seat and are uniformly distributed, and a screw cylinder base is arranged at the lower end of the inverted T-shaped clamping seat.

[0013] In the utility model, when the adjusting connecting rod moves upwards, the fine spline shaft moves upwards, the coarse spline shaft is moved out of the coarse spline shaft groove, and then the upper end of the fine spline shaft is inserted into the fine spline shaft groove at the lower end of the worm.

[0014] In the utility model, after the upper end of the fine spline shaft is inserted into the fine spline shaft groove at the lower end of the worm, the short stud is in contact with the threaded groove, and the threaded connection between the short stud and the threaded groove is realized by rotating the short stud, so that the adjusting shaft is connected with the worm.

[0015] In the utility model, when the adjusting connecting rod moves downwards, the upper end of the fine spline shaft is moved out of the fine spline shaft groove on the worm, and the coarse spline shaft is arranged above the coarse spline shaft groove, so that the adjusting shaft is in a free state.

[0016] In the utility model, when the adjusting connecting rod moves downwards again, the coarse spline shaft is inserted into the coarse spline shaft groove, so that the adjusting shaft is in a fixed state.

[0017] In the utility model, during the lifting of the fine spline shaft and the coarse spline shaft, the rotating rod drives the rotation of the adjusting shaft, so that the adjusting shaft is aligned and smoothly lifted.

[0018] In the utility model, when the clamping screw rotates, the two inverted T-shaped clamping seats are driven to synchronously approach or move away from the clamping bottom box.

[0019] Compared with the prior art, the utility model has the beneficial effects that:

[0020] 1. The rotation of the rotating rod can drive the rotation of the clamping screw, so that the two inverted T-shaped clamping seats can synchronously approach or move away from the house beam, the disassembly and assembly of the monitoring support can be facilitated, the efficiency of the disassembly and assembly can be improved, the difficulty of the disassembly and assembly can be reduced, and the stability of clamping can be ensured by the self-locking property of the worm gear and the worm.

[0021] 2. By utilizing the lifting and lowering adjustment of the fine spline shaft and the coarse spline shaft, on the one hand, the rotating rod can control the rotation of the clamping screw, enabling the monitoring bracket to be quickly assembled and disassembled. On the other hand, after the monitoring bracket is clamped, the angle of the rotating rod can be adjusted and the rotating rod can be locked to facilitate the adjustment of the monitoring range of the monitoring equipment and improve the functionality of the monitoring bracket.

[0022] 3. By using the rotation of the rotating rod to control the movement of the inverted T-shaped clamp, staff can quickly assemble and disassemble the monitoring bracket without the use of external tools, thus improving the convenience of monitoring bracket installation. Attached Figure Description

[0023] Figure 1 This is a structural schematic diagram of a construction monitoring bracket that is easy to disassemble, as described in this utility model;

[0024] Figure 2 This is a top sectional view of the clamping base box described in this utility model;

[0025] Figure 3 This is a main sectional view of the rotating sleeve described in this utility model;

[0026] Figure 4 This is a utility model Figure 3 A schematic diagram of the central adjustment shaft in a free state;

[0027] Figure 5 This is a utility model Figure 3 A schematic diagram showing the central adjustment shaft in a locked state;

[0028] In the picture:

[0029] 1. Clamping base box; 11. Drive shaft; 12. Bevel gear one; 13. Worm gear; 14. Worm; 15. Fine spline shaft groove; 2. Clamping screw; 21. Bevel gear two; 3. Rotating sleeve; 31. Coarse spline shaft groove; 32. Adjusting shaft; 33. Connecting rod groove; 34. Threaded groove; 4. Fine spline shaft; 41. Coarse spline shaft; 5. Adjusting connecting rod; 51. Adjusting handle; 52. Short stud; 6. Rotating rod; 61. Mounting chassis; 62. Square shaft seat; 7. Inverted T-type clamp; 71. Angle support plate; 72. Screw seat; 73. Internal threaded sleeve. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] The utility model provides a kind of technical scheme, as shown in Figures 1-5 As shown in the accompanying drawings;A kind of building construction monitoring support convenient to disassemble, comprising: clamping bottom box 1, it is arranged below house beam, transmission shaft 11 is arranged in its inside center one side, bevel gear one 12 is installed in the both sides of transmission shaft 11 center, worm gear 13 is installed on transmission shaft 11, worm gear 13 one side is provided with worm 14, worm 14 is vertically provided with, and is connected with clamping bottom box 1 by bearing, and worm 14 lower end is provided with fine key shaft slot 15;Clamping screw 2, it is arranged in the four corners of clamping bottom box 1 both sides, and is inserted into clamping bottom box 1, and is connected by bearing, and bevel gear two 21 is installed in its one end, and is located in the one side of bevel gear one 12, and is engaged with bevel gear one 12.

[0032] In the utility model embodiment, the transmission of worm gear 13 and worm 14 is utilized, and the meshing of bevel gear one 12 and bevel gear two 21 is utilized, so that the rotation of transmission shaft 11 can drive clamping screw 2 to rotate, and then clamping screw 2 can drive inverted T type clamping seat 7 to clamp or loosen, so as to facilitate the quick installation and disassembly of monitoring support.

[0033] In the utility model embodiment, the self-locking property of the transmission of worm gear 13 and worm 14 can ensure the stability of the clamping of inverted T type clamping seat 7, so as to avoid the accidental falling of monitoring support.

[0034] Rotary sleeve 3 is installed at the center of the lower surface of clamping bottom box 1 and below worm 14, the upper end of rotary sleeve 3 is provided with coarse key shaft slot 31, adjusting shaft 32 is inserted and mounted in the inside of rotary sleeve 3 and connected by bearing, the lower end of adjusting shaft 32 is square shaft, the upper end of adjusting shaft 32 is provided with fine key shaft slot 15 which is the same as that of worm 14, link slot 33 is opened at the lower end of the inside of fine key shaft slot 15, and thread groove 34 is arranged in the inside of link slot 33;Fine key shaft 4 is slidably inserted into fine key shaft slot 15 on adjusting shaft 32, coarse key shaft 41 is installed above the center of fine key shaft 4, coarse key shaft 41 is slidably inserted into coarse key shaft slot 31, the upper end of coarse key shaft 41 is located below worm 14 and is aligned with the center of fine key shaft slot 15 below worm 14;Adjusting link 5 is slidably inserted into link slot 33, the lower end of adjusting link 5 extends out of adjusting shaft 32 and is provided with adjusting handle 51, the upper end of adjusting link 5 is movably connected with the lower end of fine key shaft 4, short stud 52 is arranged on the upper end of adjusting link 5, and short stud 52 is below thread groove 34.

[0035] In the utility model embodiment, the setting of rotary sleeve 3 is utilized, and coarse key shaft 41 is inserted into coarse key shaft slot 31, so that fine key shaft 4 can be separated from worm 14, and adjusting shaft 32 and worm 14 are in a separated state, so as to avoid the loosening of monitoring support caused by the reverse rotation of worm 14.

[0036] In the embodiment of the utility model, the fine spline shaft 4 is inserted into the fine spline shaft groove 15 at the lower end of the worm 14 by adjusting the shaft 32 and lifting the fine spline shaft 4, and the lower end of the fine spline shaft 4 is still inserted into the fine spline shaft groove 15 of the adjusting shaft 32, so that the adjusting shaft 32 and the worm 14 can be quickly connected, the adjusting shaft 32 can smoothly drive the worm 14 to rotate, and the clamping or loosening of the monitoring support is controlled.

[0037] In the embodiment of the utility model, the fine spline shaft 14 is pulled out from the worm 14, and the coarse spline shaft 41 is located above the coarse spline shaft groove 31, so that the adjusting shaft 32 is in a free state, the fixed angle of the rotating rod 6 can be adjusted by the staff, and the monitoring range of the monitoring equipment is adjusted.

[0038] In the embodiment of the utility model, the fine spline shaft 14 is lifted, and the coarse spline shaft 41 is lifted and matched, so that the staff can quickly control the connection relationship between the adjusting shaft 32, the worm 14 and the rotating sleeve 3, the operation difficulty is reduced, the monitoring support is quickly installed and disassembled.

[0039] The rotating rod 6 is arranged below the clamping bottom box 1, one end of the rotating rod 6 is provided with a mounting base 61, the other end of the rotating rod 6 is provided with a square shaft seat 62, the square shaft seat 62 is sleeved on the square shaft at the lower end of the adjusting shaft 32, and the square shaft seat 62 is fixed by means of a pin bolt.

[0040] In the embodiment of the utility model, the rotating rod 6 is arranged, so that the staff can quickly control the installation and disassembly of the monitoring support without using external tools, the monitoring support is more efficient and convenient to disassemble, the fixed angle of the rotating rod 6 can be controlled, the monitoring range of the monitoring equipment is adjusted, and the functionality of the monitoring support is improved.

[0041] The inverted T type clamp seat 7 is arranged on the two sides above the clamping bottom box 1, a plurality of angle support plates 71 are arranged on the outer side above the inverted T type clamp seat 7 and are evenly distributed, screw cylinder seats 72 are arranged at the lower ends of the two sides of the inverted T type clamp seat 7, inner thread sleeves 73 are arranged at the lower ends of the screw cylinder seats 72 and are threadedly sleeved on the clamping screw 2.

[0042] In the embodiment of the utility model, the two inverted T type clamp seats 7 are used to clamp the house beam, so that the monitoring support can be quickly clamped and fixed with the house beam, the disassembly efficiency of the monitoring support is improved, and the contact surface of the inverted T type clamp seat 7 and the house beam can be provided with extruded soft pads to ensure that sufficient friction force is generated between the inverted T type clamp seat 7 and the house beam.

[0043] In the embodiment of the utility model, the inner thread sleeve 73 is threadedly connected with the clamping screw 2, so that the two inverted T type clamp seats 7 can be synchronously close to or away from the house beam, and the installation and disassembly of the monitoring support are facilitated.

[0044] The utility model discloses, when adjusting connecting rod 5 moves upwards, push fine spline shaft 4 and move upwards to make the coarse spline shaft 41 from the coarse spline shaft groove 31 inside move out, and then make the upper end of fine spline shaft 4 insert into the fine spline shaft groove 15 of the lower end of worm 14.

[0045] The utility model discloses, after the upper end of fine spline shaft 4 inserts into the fine spline shaft groove 15 of the lower end of worm 14, short stud 52 and threaded groove 34 contact, and are connected through rotation to make the threaded connection of both, make adjusting shaft 32 and worm 14 connect, guarantee the stability and firm of adjusting shaft 32 and worm 14 connection, avoid accidental break.

[0046] The utility model discloses, when adjusting connecting rod 5 moves downwards, the upper end of fine spline shaft 4 moves out from the fine spline shaft groove 15 on worm 14, and at this moment, the coarse spline shaft 41 is located the upper of coarse spline shaft groove 31, make adjusting shaft 32 be in free state, make adjusting shaft 32 and worm 14 separate quickly and disconnect, and make adjusting shaft 32 can rotate freely, so as to adjust rotating rod 6 to the appropriate angle, and then the use of monitoring equipment is convenient.

[0047] The utility model discloses, when adjusting connecting rod 5 moves downwards again, the coarse spline shaft 41 inserts into the coarse spline shaft groove 31, and make adjusting shaft 32 be in fixed state, avoid the rotation of rotating rod 6, make rotating rod 6 be in the lock state, thereby avoid rotating rod 6 drive monitoring equipment and rotate and influence monitoring effect.

[0048] The utility model discloses, in the lifting process of fine spline shaft 4 and coarse spline shaft 41, utilize rotating rod 6 to drive the rotation of adjusting shaft 32, make it align and smoothly lift, make fine spline shaft 4 and coarse spline shaft 41 can be inserted into corresponding fine spline shaft groove 14 and coarse spline shaft groove 31 quickly.

[0049] The utility model discloses, when clamping screw rod 2 rotates, drive two inverted T type clamping seat 7 to be close to or away from the clamping bottom box 1 simultaneously, guarantee that inverted T type clamping seat 7 can smoothly clamp or loosen house beam.

[0050] Specific use of the utility model, the staff will take out the device, and then according to the width of the beam, the spacing between the two inverted T type clamping seat 7 is adjusted, the staff moves by manually pushing the adjusting handle 51, makes it push adjusting connecting rod 5 insert into the adjusting shaft 32, further makes adjusting connecting rod 5 push fine key shaft 4 moves, and makes coarse key shaft 41 from coarse key shaft groove 31 moves out, then makes the upper end of fine key shaft 4 insert into the fine key shaft groove 15 of the lower end of worm 14, when adjusting connecting rod 5 inserts to a certain distance, at this time, it is blocked by thread groove 34, the staff rotates adjusting connecting rod 5, and controls rotating rod 6 not to move, makes adjusting connecting rod 5 drive stud 52 rotates, and makes stud 52 is screwed into thread groove 34, further makes stud 32 and thread groove 34 is screwed, at this time, worm 14 is connected with adjusting shaft 32, and simultaneously using the transmission of fine key shaft 4, makes worm 14 rotate with adjusting shaft 32 synchronously;

[0051] Then, the staff can control rotating rod 6 to rotate, make it drive adjusting shaft 32 to rotate, and make adjusting shaft 32 drive worm 14 to rotate, using the meshing of worm 14 and worm wheel 13, makes worm wheel 13 drive transmission shaft 11 to rotate, then using the meshing of bevel gear one 12 and bevel gear two 21, makes it drive four clamping screws 2 to rotate, again using the screw connection of clamping screw 2 and internal thread sleeve 73, makes inverted T type clamping seat 7 gradually far away from clamping bottom box 1, and adjusts the spacing between the two inverted T type clamping seat 7 to the appropriate position;

[0052] Then, the staff will place clamping bottom box 1 at the appropriate position below the beam, and make inverted T type clamping seat 7 be located at the two sides of the beam, then control rotating rod 6 to reverse rotation, make clamping screw 2 drive inverted T type clamping seat 7 to approach the beam, and gradually clamp the beam, further make clamping bottom box 1 be fixed below the beam;

[0053] When the two inverted T type clamping seat 7 clamp the beam, at this time, the staff pushes rotating rod 6 towards the clamping direction, and because of the clamping of the two inverted T type clamping seat 7, rotating rod 6 is in a fixed state, then the staff reversely rotates adjusting handle 51, makes stud 52 from thread groove 34, then controls adjusting connecting rod 5 to move downwards, makes fine key shaft 4 and worm 14 gradually separate, when the staff observes that rotating rod 6 can rotate, at this time, fine key shaft 4 and worm 14 complete the separation work, and simultaneously coarse key shaft 41 is located above rotating sleeve 3;

[0054] Then, the staff can adjust rotating rod 6 to the appropriate angle, then control adjusting connecting rod 5 to continue moving downwards, makes coarse key shaft 41 insert into coarse key shaft groove 31, further makes adjusting shaft 32 be fixed by the connection of coarse key shaft 41 and coarse key shaft groove 31, so that rotating rod 6 is in a fixed state;

[0055] Finally, the staff can assemble the monitoring device on the mounting chassis 61, and then use the monitoring device.

[0056] When it is necessary to disassemble, the staff only needs to connect the adjusting shaft 32 with the worm 14 in the above manner, and then uses the rotation of the rotating rod 6 to make the two inverted T-shaped clamping seats 7 loosen the house beam.

[0057] In the specific implementation of the utility model, when the upper end of the thin spline shaft 4 is inserted into the thin spline shaft groove 15 at the lower end of the worm 14, and the thick spline shaft 41 is inserted into the thick spline shaft groove 31, the spline of the spline shaft and the key groove of the spline groove will not be aligned, but since the adjusting shaft 32 can be freely rotated at this time, the key groove and the spline can be aligned by using the small angle rotation of the adjusting shaft 32, so that the thin spline shaft 4 can be smoothly lifted and lowered.

[0058] It should be noted that in this document, the terms "first" and "second" and the like are used merely to distinguish one entity or action from another, without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without more limitations, the statement "comprises a limited element" does not exclude the existence of additional identical elements in the process, method, article, or apparatus including the stated element.

[0059] Although embodiments of the utility model have been shown and described, it will be apparent to those having ordinary skill in the art that a number of changes, modifications, replacements, and variations of these embodiments can be made without departing from the principles and spirit of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A construction monitoring bracket that is easy to disassemble, characterized in that, The utility model relates to a kind of adjustable housing support, including: Clamping bottom box is arranged below house beam, transmission shaft is arranged in the inside center of one side of clamping bottom box, bevel gear one is installed in the center of transmission shaft, worm wheel is installed on transmission shaft, worm gear is arranged in the side of worm wheel, worm gear is vertically arranged, and is connected with clamping bottom box by bearing, fine key shaft slot is opened in the lower end of worm gear; Clamping screw is arranged in the four corners of clamping bottom box two sides, and is inserted into clamping bottom box, and is connected by bearing, one end is installed bevel gear two, and is located in the side of bevel gear one, and is engaged with bevel gear one; Rotary sleeve is installed in the center of the lower surface of clamping bottom box, and is located in the lower end of worm gear, and the upper end is opened with fine key shaft slot, and is inserted with adjusting shaft in the inside, and is connected by bearing, the lower end of adjusting shaft is square shaft, the upper end of adjusting shaft is opened with the same fine key shaft slot as the upper end of worm gear, fine key shaft slot is opened with connecting rod slot in the inside lower end, and screw groove is arranged in the inside of connecting rod slot; Fine key shaft is slidably inserted in the fine key shaft slot on the adjusting shaft, and the center is installed with coarse key shaft above, and the coarse key shaft is slidably inserted in the coarse key shaft slot, and the upper end is located in the lower end of worm gear, and is aligned with the center of fine key shaft slot in the lower end of worm gear; Adjusting connecting rod is slidably inserted in connecting rod slot, and the lower end is stretched out of adjusting shaft, and adjusting handle is installed, and the upper end is movably connected with the lower end of fine key shaft, and short stud is installed on the upper end, and short stud is located below screw groove; Rotary rod is arranged below clamping bottom box, one end is arranged with mounting base, the other end is arranged with square shaft seat, and is sleeved on the square shaft of the lower end of adjusting shaft, and is fixed by inserting pin bolt; Inverted T type clamping seat is arranged in the upper side of clamping bottom box two sides, and a plurality of angle support plates are installed on the upper side, and are evenly distributed, and screw cylinder seat is installed in the lower end of the two ends, and internal thread sleeve is installed in the lower end of screw cylinder seat, and is threadedly sleeved on clamping screw.

2. A construction monitoring bracing system according to claim 1, wherein, When the adjusting connecting rod moves upward, the fine key shaft is pushed to move upward, and the coarse key shaft is moved out of the coarse key shaft slot, and then the upper end of the fine key shaft is inserted into the fine key shaft slot in the lower end of the worm gear.

3. A construction monitoring bracing system according to claim 1, wherein, After the upper end of the fine key shaft is inserted into the fine key shaft slot in the lower end of the worm gear, the short stud is in contact with the screw groove, and the two are threadedly connected by rotating, so that the adjusting shaft is connected with the worm gear.

4. The easily removable construction monitoring bracing system of claim 1, wherein, When the adjusting connecting rod moves downward, the upper end of the fine key shaft is moved out of the fine key shaft slot on the worm gear, and at this time the coarse key shaft is located above the coarse key shaft slot, so that the adjusting shaft is in a free state.

5. The easily removable construction monitoring bracing system of claim 1, wherein, When the adjusting connecting rod moves downward again, the coarse key shaft is inserted into the coarse key shaft slot, so that the adjusting shaft is in a fixed state.

6. The easily removable construction monitoring bracing system of claim 1, wherein, During the lifting process of the fine key shaft and the coarse key shaft, the rotation of the adjusting shaft is driven by the rotary rod, so that it is aligned and smoothly lifted.

7. The easily removable construction monitoring bracket of claim 1, wherein, When the clamping screw rotates, it drives the two inverted T type clamping seats to move synchronously close to or away from the clamping bottom box.

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