Safety anti-falling protection mechanism of construction hoist

Abstract

The safety anti-falling protection mechanism comprises a working platform base frame, a corner box frame and a supporting hurdle are fixedly welded to the edge of the top face of the working platform base frame, and the end of the supporting hurdle is fixedly welded to the corner box frame. The supporting fence is arranged to serve as an integrated security fence top structure, the supporting fence is connected with the octagonal sliding lining edge pipes capable of being driven to ascend and descend and the sliding rail columns capable of providing longitudinal moving and sliding, and therefore the supporting fence can be longitudinally lifted and contracted downwards, and when the supporting fence is lifted, the supporting fence can carry the sliding rail columns to be lifted to serve as a longitudinal protective fence structure; therefore, the effect of conveniently extending and shrinking the height of the fence facility on the working platform of the construction hoist is achieved, adaptability adjustment can be conveniently carried out by coordinating the activity range of operation construction, operation personnel can conveniently carry out many construction activities, use of consumable items such as operation tools and building materials is also facilitated, and the working efficiency is improved. Not only is the flexibility of the operation activity improved, but also the safety guarantee is improved.

Description

Technical Field

[0001] The invention relates to the technical field of construction machinery, and in particular to a safety anti-falling protection mechanism for a construction elevator. Background Art

[0002] The definition of construction elevator is broader and is not completely equivalent to general construction elevators. Construction platforms also fall within the scope of construction elevators. A simple construction elevator is composed of a car, a drive mechanism, a standard section, a wall attachment, a chassis, a fence, an electrical system and other parts. It is a manned and cargo construction machinery frequently used in construction. Its unique box structure makes it comfortable and safe to ride. Construction elevators are usually used in conjunction with tower cranes on construction sites. The general load capacity is 0.3-3.6 tons and the operating speed ranges from 1-96M / min. There are many types of construction elevators, which are divided into two types according to the operating mode: without counterweight and with counterweight; according to the control mode, they are divided into manual control and automatic control, and frequency conversion devices and PLC control modules can be added according to actual needs. In addition, floor call devices and leveling devices can also be added.

[0003] The driving form of construction elevators is not limited to one type. The most common and widely used one is hydraulic drive. Construction elevators with different driving modes need to be equipped with an operating platform on the top. On the working platform of the construction elevator, in order to provide a certain degree of protection, a fence-like safety protection device is installed on the edge of the platform to ensure the safety of the workers and avoid the risk of falling of the construction workers.

[0004] However, the fence facilities on the existing construction elevator working platforms are basically fixed structures. Because of the need to coordinate the scope of activities of the construction work, the height of such security fence facilities cannot be set too high. If it is too high, many construction activities will be difficult to carry out. Not only will the scope of activities of the workers be limited, but it will also limit the workers' work tools and the use of consumables such as building materials. Therefore, the lack of adaptable anti-fall safety facilities makes the flexibility very poor, which is not only not conducive to improving safety, but also not convenient for improving operational flexibility during the operation process. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a safety anti-falling protection mechanism for a construction elevator, which solves the problems raised in the background technology.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A safety anti-fall protection mechanism for a construction elevator comprises a work platform base frame, an angle box frame and a support railing frame are fixedly welded to the edge of the top surface of the work platform base frame, the end of the support railing frame is fixedly welded to the angle box frame, the top surface of the support railing frame is fixedly welded to the work platform bottom plate, the angle box frame is embedded and fixedly welded to the corner of the work platform bottom plate, an octagonal prism pipe is passed through and fixedly inserted in the middle of the top wall of the angle box frame, an octagonal sliding lining prism pipe is longitudinally slidably inserted in the interior of the octagonal sliding lining prism, a security railing hoop frame is fixedly installed on the top of the octagonal sliding lining prism, and the security A slide rail column is fixedly welded to the bottom surface of the rail hoop frame, and a slide rail tube frame is slidably sleeved on the surface of the slide rail column. A protective cross rail frame and a protective bottom rail frame are fixedly welded to the side surfaces of the octagonal prism and the corner box frame respectively. The outer surface of the slide rail tube frame is fixedly welded to the protective cross rail frame and the protective bottom rail frame. A motor group is fixedly arranged inside the corner box frame, and a threaded rotating shaft is installed at the output end of the motor group. A bearing that provides rotation support for the threaded rotating shaft is inserted through the middle of the top wall of the corner box frame, and an internal threaded buckle frame that cooperates with the threaded rotating shaft is provided below the inner wall of the octagonal sliding liner prism.

[0008] Preferably, the working platform base frame includes an assembled bottom pipe frame, a bottom I-beam frame and a platform base plate, the end of the bottom I-beam frame is fixedly connected to the assembled bottom pipe frame, the platform base plate is fixedly welded to the top of the assembled bottom pipe frame and the bottom I-beam frame, the number of the corner box frames is four, and the four corner box frames are respectively fixedly installed at the four corners of the top surface of the platform base plate, the number of the supporting fence frames is four, and the four supporting fence frames are respectively located at the four sides of the top surface of the platform base plate; a control box group is fixedly installed in the middle of one side edge of the bottom surface of the security fence frame, and the control box group realizes control of the motor group through wiring; a stabilizing slide is rotatably installed at the top end of the threaded rotating shaft.

[0009] Preferably, the assembly bottom tube frame includes an assembly rib tube and an assembly circular hole, wherein the assembly circular hole is opened through the front and back sides of the assembly rib tube; the end face of the bottom I-beam rib frame is I-shaped, and the front end and the back end of the bottom I-beam rib frame are both welded and fixed to the assembly rib tube.

[0010] Preferably, the support railing includes a supporting rib tube and a longitudinal lining plate of the rib tube, the side of the supporting rib tube close to the outer side of the platform substrate is through-shaped, and the longitudinal lining plate of the rib tube is fixedly installed on the inner wall edge of the supporting rib tube close to the opening, and the length of the supporting rib tubes on the left and right sides of the platform substrate is smaller than the supporting rib tubes on the front and rear sides of the platform substrate.

[0011] Preferably, a load-balanced mesh frame is fixedly welded to the top of the working platform bottom plate close to the inner side of the platform base plate, and the load-balanced mesh frame is fixedly welded to the bottom surface of the platform base plate.

[0012] Preferably, the load-balanced mesh reinforcement frame includes transverse drag reinforcements and longitudinal support arms, the transverse drag reinforcements are embedded and fixed on the top of the longitudinal support arms, and the top surfaces of the transverse drag reinforcements and the longitudinal support arms are arranged flush, and the transverse drag reinforcements and the longitudinal support arms form a grid structure.

[0013] Preferably, a support hoop is fixedly installed on the top surface of the corner box frame, and the interior of the support hoop is an octagonal through-groove structure that fits the surface of the octagonal tube, and the octagonal tube is inserted into the interior of the support hoop; a surface-increasing gasket is fixedly installed on the top of the octagonal sliding rib tube, and the top of the octagonal sliding rib tube is fixedly connected to the corner of the bottom surface of the security fence hoop frame through the surface-increasing gasket, and the top and bottom surfaces of the surface-increasing gasket are respectively welded and fixed to the security fence hoop frame and the octagonal sliding rib tube.

[0014] Preferably, the protective cross rail frame is located above the protective bottom rail frame, the bottom ends of the sliding rail tube frame and the protective bottom rail frame are fixedly welded to the top surface of the supporting rail frame, the protective cross rail frame includes a protective cross rail plate and a through transverse groove, and the through transverse groove is opened through the plate surface of the protective cross rail plate; the protective bottom rail frame includes a protective bottom rail arm and a bottom rail through groove, and the bottom rail through groove is opened through the protective bottom rail arm; the sliding rail tube frame includes a rail tube body and a rail tube support arm, and the rail tube support arm is fixedly connected to the surface of the rail tube body, and the rail tube body and the rail tube support arm are fixedly welded to the rail tube body and the rail tube support arm.

[0015] Preferably, the internal thread buckle frame includes an internal thread tube and an octagonal plate supporting the outside of the tube. The internal thread tube longitudinally penetrates and is fixedly inserted in the center of the octagonal plate supporting the outside of the tube. The octagonal edge tube and the octagonal sliding lining edge tube are both regular octagonal edge tube structures.

[0016] Preferably, the motor group includes a servo motor and a reducer, the output end of the servo motor is connected to the input end of the reducer, and the output end of the reducer is connected to the bottom end of the threaded rotating shaft; the stable slide seat includes an octagonal sliding column and a sliding seat bearing, the sliding seat bearing is installed on the bottom surface of the octagonal sliding column, and the bottom surface of the octagonal sliding column is rotatably connected to the threaded rotating shaft through the sliding seat bearing, and the outer surface of the octagonal sliding column is slidably overlapped with the inner wall of the inner wall of the octagonal sliding lining ridge tube;

[0017] The control box group includes a box support plate, a control box body, a control button, a wiring pipe opening, an accidental touch prevention barrier and an operation touch groove. The top of the control box body is fixedly connected through the box support plate and the bottom surface of the security fence hoop frame. The wiring pipe opening is opened on the side of the box support plate. The control button is arranged at the corner of the bottom surface of the control box body. The accidental touch prevention barrier is fixedly connected to the edge of the bottom side of the control box body. The operation touch groove is opened in the middle of the accidental touch prevention barrier, and the end of the operation touch groove is arc-shaped.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The safety anti-fall protection mechanism of the construction elevator sets a support frame as the top structure of an integrated security fence, and connects the octagonal sliding lining tube that can be driven to lift and lower and the slide rail column that provides longitudinal sliding, so that the support frame can be lifted longitudinally and retracted downward, and when the support frame is lifted, the slide rail column can be lifted with it as a longitudinal guardrail structure, thereby achieving the effect of extending and retracting the height of the fence facilities on the construction elevator working platform, facilitating adaptive adjustment according to the needs of the activity range of the operation construction, facilitating the implementation of many construction activities of the operators, and facilitating the use of operating tools, building materials and other consumables, which not only improves the flexibility of the operation activities, but also improves the safety guarantee. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional view of the structure of the present invention;

[0021] Figure 2 It is an inverted stereoscopic view of the structure of the present invention;

[0022] Figure 3 It is a three-dimensional view of the local structure of the present invention;

[0023] Figure 4 It is a three-dimensional view of another partial structure of the present invention;

[0024] Figure 5 This is a three-dimensional view of the control box assembly of the present invention;

[0025] Figure 6 This is a three-dimensional view of the internal thread buckle frame of the present invention;

[0026] Figure 7 A three-dimensional view of a stable slide of the present invention;

[0027] Figure 8 It is a schematic diagram of the end surface structure of the octagonal prism tube and the octagonal sliding liner prism tube of the present invention.

[0028] In the figure: 1. Assembly bottom pipe frame; 2. Bottom I-beam frame; 3. Platform base plate; 4. Corner box frame; 5. Support fence frame; 6. Load-balanced mesh frame; 7. Working platform bottom plate; 8. Octagonal prism pipe; 9. Octagonal sliding prism pipe; 10. Security fence frame; 11. Slide rail column; 12. Slide rail pipe frame; 13. Protection cross rail frame; 14. Protection bottom rail frame; 15. Motor group; 16. Bearing; 17. Internal thread buckle frame; 18. Threaded rotating shaft; 19. Stable slide seat; 20. Control box group;

[0029] 101. Assembling rib tube; 102. Assembling round hole; 401. Supporting hoop; 501. Supporting rib tube; 502. Rib tube longitudinal lining plate; 601. Longitudinal supporting arm; 602. Transverse dragging bar; 901. Surface increasing gasket; 1201. Rail tube body; 1202. Rail tube support arm; 1301. Protective horizontal railing; 1302. Through horizontal groove; 1401. Protective bottom railing arm; 1402. Protective bottom railing arm; 1501. Servo motor; 1502. Reducer; 1701. Outer tube supporting octagonal plate; 1702. Internally threaded tube; 1901. Octagonal sliding column; 1902. Sliding seat bearing; 2001. Box support plate; 2002. Control box body; 2003. Control button; 2004. Wiring pipe opening; 2005. Accidental touch protection railing; 2006. Operation touching the groove. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] Example 1: Reference Figure 1-8 A safety anti-fall protection mechanism for a construction hoist comprises a work platform base frame, an angle box frame 4 and a support fence frame 5 are fixedly welded to the edge of the top surface of the work platform base frame, the end of the support fence frame 5 is fixedly welded to the angle box frame 4, the top surface of the support fence frame 5 is fixedly welded to the work platform bottom plate 7, the angle box frame 4 is embedded and fixedly welded to the corner of the work platform bottom plate 7, an octagonal prism 8 is penetrated and fixedly inserted in the middle of the top wall of the angle box frame 4, an octagonal sliding lining prism 9 is inserted in the longitudinal sliding interior of the octagonal sliding lining prism 8, a security fence hoop frame 10 is fixedly installed on the top of the octagonal sliding lining prism 9, and a security fence hoop frame 10 is fixedly welded on the bottom surface A slide rail column 11 has a slide rail tube frame 12 slidingly sleeved on its surface, and a protective cross rail frame 13 and a protective bottom rail frame 14 are fixedly welded to the side surfaces of the octagonal prism tube 8 and the corner box frame 4 respectively. The outer surface of the slide rail tube frame 12 is fixedly welded to the protective cross rail frame 13 and the protective bottom rail frame 14, and a motor group 15 is fixedly arranged inside the corner box frame 4. A threaded rotating shaft 18 is installed at the output end of the motor group 15, and a bearing 16 for providing rotation support for the threaded rotating shaft 18 is inserted through the middle of the top wall of the corner box frame 4, and an internal threaded buckle frame 17 threadably matched with the threaded rotating shaft 18 is provided below the inner wall of the octagonal sliding liner 9.

[0032] In the present invention, the work platform base frame includes an assembly bottom pipe frame 1, a bottom I-beam frame 2 and a platform base plate 3. The end of the bottom I-beam frame 2 is fixedly connected to the assembly bottom pipe frame 1, and the platform base plate 3 is fixedly welded to the top of the assembly bottom pipe frame 1 and the bottom I-beam frame 2. There are four corner box frames 4, and the four corner box frames 4 are respectively fixedly installed at the four corners of the top surface of the platform base plate 3. There are four support fence frames 5, and the four support fence frames 5 are respectively located at the four sides of the top surface of the platform base plate 3; a control box group 20 is fixedly installed in the middle of one side of the bottom surface of the security fence hoop frame 10, and the control box group 20 realizes the control of the motor group 15 through wiring; a stable slide seat 19 is rotatably installed at the top end of the threaded rotating shaft 18;

[0033] More specifically, by providing a stabilizing slide 19 , the threaded rotating shaft 18 is made more stable. When driving, the stabilizing slide 19 can maintain a sliding state with the inside of the octagonal sliding rib tube 9 , thereby ensuring the stability of the axis of the threaded rotating shaft 18 .

[0034] In the present invention, the assembly bottom pipe frame 1 includes an assembly rib tube 101 and an assembly circular hole 102, and the assembly circular hole 102 is opened through the front and back of the assembly rib tube 101; the end face of the bottom I-shaped rib frame 2 is I-shaped, and the front end and the back end of the bottom I-shaped rib frame 2 are welded and fixed to the assembly rib tube 101;

[0035] More specifically, by providing the assembly circular hole 102, the assembly and fixation of the assembly rib tube 101 is provided, and by providing the front end and the back end of the bottom I-shaped rib frame 2 to be welded and fixed to the assembly rib tube 101, the I-shaped structure can better bear the pressure load.

[0036] In the present invention, the support fence 5 includes a support rib tube 501 and a rib tube longitudinal lining plate 502. The side of the support rib tube 501 close to the outer side of the platform substrate 3 is through-shaped, and the rib tube longitudinal lining plate 502 is fixedly installed on the inner wall edge of the support rib tube 501 close to the opening, and the length of the support rib tube 501 on the left and right sides of the platform substrate 3 is shorter than the support rib tube 501 on the front and rear sides of the platform substrate 3.

[0037] More specifically, by providing the rib tube longitudinal lining plate 502 fixedly installed on the inner wall edge of the supporting rib tube 501 near the opening, the structural strength of the supporting rib tube 501 is ensured, avoiding the shortcoming of stress resistance caused by the hollow design of the supporting rib tube 501 structure.

[0038] In the present invention, a load-balanced mesh frame 6 is fixedly welded to the top of the working platform bottom plate 7 close to the inner side of the platform base plate 3 , and the load-balanced mesh frame 6 is fixedly welded to the bottom surface of the platform base plate 3 .

[0039] In the present invention, the load-balanced mesh reinforcement frame 6 includes a transverse drag reinforcement 602 and a longitudinal support arm 601, the transverse drag reinforcement 602 is embedded and fixed on the top of the longitudinal support arm 601, and the top surfaces of the transverse drag reinforcement 602 and the longitudinal support arm 601 are flush, and the transverse drag reinforcement 602 and the longitudinal support arm 601 form a grid structure;

[0040] More specifically, by providing a grid-like transverse dragging reinforcement 602 and a longitudinal supporting arm 601 to support the interior, the pressure-bearing stability of the working platform bottom plate 7 is further improved.

[0041] In the present invention, a support hoop 401 is fixedly installed on the top surface of the corner box frame 4, and the interior of the support hoop 401 is an octagonal through-groove structure that fits the surface of the octagonal prism 8, and the octagonal prism 8 is plugged into the interior of the support hoop 401; a surface-increasing gasket 901 is fixedly installed on the top of the octagonal sliding prism 9, and the top of the octagonal sliding prism 9 is fixedly connected to the corner of the bottom surface of the security fence hoop frame 10 through the surface-increasing gasket 901, and the top and bottom surfaces of the surface-increasing gasket 901 are respectively welded and fixed to the security fence hoop frame 10 and the octagonal sliding prism 9;

[0042] More specifically, by setting the top end of the octagonal sliding rib tube 9 to be fixedly connected to the corner of the bottom surface of the security railing frame 10 through the surface-increasing gasket 901, the contact points of the connection are increased and the hand force is more uniform, thereby avoiding the risk of fatigue deformation of the structure.

[0043] In the present invention, the protective horizontal rail frame 13 is located above the protective bottom rail frame 14, the bottom ends of the slide rail pipe frame 12 and the protective bottom rail frame 14 are fixedly welded to the top surface of the support rail frame 5, the protective horizontal rail frame 13 includes a protective horizontal rail plate 1301 and a through horizontal groove 1302, and the through horizontal groove 1302 is opened through the plate surface of the protective horizontal rail plate 1301; the protective bottom rail frame 14 includes a protective bottom rail arm 1401 and a bottom rail through groove 1402, and the bottom rail through groove 1402 is opened through the protective bottom rail arm 1401; the slide rail pipe frame 12 includes a rail pipe body 1201 and a rail pipe support arm 1202, and the rail pipe support arm 1202 is fixedly connected to the surface of the rail pipe body 1201, and the rail pipe body 1201 and the rail pipe support arm 1202 are fixedly welded to the rail pipe body 1201 and the rail pipe support arm 1202;

[0044] More specifically, by arranging the through transverse groove 1302 penetrating the plate surface of the protective cross railing 1301 and the through transverse groove 1302 penetrating the plate surface of the protective cross railing 1301, the protective cross railing 1301 and the protective cross railing 1301 structure provide protection while also achieving a lightweight design, and the hollow design also extends the field of vision of the operators and reduces field of vision obstruction.

[0045] In the present invention, the internal thread buckle frame 17 includes an internal thread tube 1702 and an octagonal plate 1701 supporting the outer tube. The internal thread tube 1702 longitudinally penetrates and is fixedly inserted into the center of the octagonal plate 1701 supporting the outer tube. The octagonal edge tube 8 and the octagonal sliding lining edge tube 9 are both regular octagonal edge tube structures.

[0046] More specifically, the octagonal tube 8 and the octagonal sliding liner tube 9 of the regular octagonal tube structure can not only ensure the limit to avoid turning when it slides longitudinally, but also make the angle of the corner part larger, so as to better avoid the situation of jamming.

[0047] In the present invention, the motor group 15 includes a servo motor 1501 and a reducer 1502, the output end of the servo motor 1501 is connected to the input end of the reducer 1502, and the output end of the reducer 1502 is connected to the bottom end of the threaded rotating shaft 18; the stable slide 19 includes an octagonal sliding column 1901 and a sliding seat bearing 1902, the sliding seat bearing 1902 is installed on the bottom surface of the octagonal sliding column 1901, and the bottom surface of the octagonal sliding column 1901 is rotatably connected to the threaded rotating shaft 18 through the sliding seat bearing 1902, and the outer surface of the octagonal sliding column 1901 is slidably overlapped with the inner wall of the inner wall of the octagonal sliding lining prism tube 9;

[0048] The control box group 20 includes a box support plate 2001, a control box body 2002, a control button 2003, a wiring pipe opening 2004, an accidental touch prevention fence 2005 and an operation touch-in groove 2006. The top of the control box body 2002 is fixedly connected to the bottom surface of the security fence hoop frame 10 through the box support plate 2001, the wiring pipe opening 2004 is opened on the side of the box support plate 2001, the control button 2003 is arranged at the corner of the bottom surface of the control box body 2002, the accidental touch prevention fence 2005 is fixedly connected to the edge of the bottom side of the control box body 2002, and the operation touch-in groove 2006 is opened in the middle of the accidental touch prevention fence 2005, and the end of the operation touch-in groove 2006 is arc-shaped;

[0049] More specifically, by providing an accidental touch protection barrier 2005, the control button 2003 is prevented from being accidentally touched by the operator, so that the button can only be pushed in from below, and the arc-shaped edge design of the operating touch slot 2006 prevents the operator from being injured by sharp parts when controlling.

[0050] Working principle:

[0051] When extending or contracting the height of the anti-fall security structure, start the motor group 15, so that the motor group 15 drives the threaded rotating shaft 18 to rotate, and the octagonal prism 8 and the octagonal sliding rib tube 9 avoid the longitudinal sliding fibers of the turning, that is, the internal thread buckle frame 17 is driven to lift or move down on the surface of the rotating threaded rotating shaft 18, and the lifting or downward movement of the internal thread buckle frame 17 drives the octagonal sliding rib tube 9 to slide upward or downward inside the octagonal prism 8, and the longitudinal lifting or downward movement of the octagonal sliding rib tube 9 drives the security rail hoop frame 10 to rise or fall The height position adjustment, and when the security rail hoop frame 10 rises, it will drive the slide rail column 11 to slide upward and lift inside the slide rail pipe frame 12, thereby realizing the longitudinal fence protection below the security rail hoop frame 10, thereby realizing the extension or contraction adjustment of the fence structure of the anti-fall security structure.

[0052] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0053] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A safety anti-fall protection mechanism for a construction hoist, comprising a work platform base frame, characterized in that: The edge of the top surface of the work platform base frame is fixedly welded with a corner box frame (4) and a support fence frame (5), the end of the support fence frame (5) is fixedly welded to the corner box frame (4), the top surface of the support fence frame (5) is fixedly welded with a work platform bottom plate (7), the corner box frame (4) is embedded and fixedly welded to the corner of the work platform bottom plate (7), an octagonal prism (8) is passed through and fixedly inserted in the middle of the top wall of the corner box frame (4), an octagonal sliding rib tube (9) is longitudinally slidably inserted inside the octagonal prism (8), a security fence hoop frame (10) is fixedly installed on the top end of the octagonal sliding rib tube (9), and a slide rail column (11) is fixedly welded to the bottom surface of the security fence hoop frame (10), and the slide rail column (11) The surface of the corner box frame (4) is slidably sleeved with a slide rail tube frame (12), the side surfaces of the octagonal prism tube (8) and the corner box frame (4) are respectively fixedly welded with a protective cross rail frame (13) and a protective bottom rail frame (14), the outer surface of the slide rail tube frame (12) is fixedly welded with the protective cross rail frame (13) and the protective bottom rail frame (14), a motor group (15) is fixedly arranged inside the corner box frame (4), a threaded rotating shaft (18) is installed at the output end of the motor group (15), a bearing (16) for providing rotation support for the threaded rotating shaft (18) is inserted through the middle of the top wall of the corner box frame (4), and an internal thread buckle frame (17) threadedly matched with the threaded rotating shaft (18) is provided below the inner wall of the octagonal sliding liner prism tube (9).

2. The safety anti-falling protection mechanism for a construction hoist according to claim 1, characterized in that: The work platform base frame comprises an assembly bottom pipe frame (1), a bottom I-beam frame (2) and a platform base plate (3); the end of the bottom I-beam frame (2) is fixedly connected to the assembly bottom pipe frame (1); the platform base plate (3) is fixedly welded to the top of the assembly bottom pipe frame (1) and the bottom I-beam frame (2); the number of the corner box frames (4) is four, and the four corner box frames (4) are respectively fixedly installed at the four corners of the top surface of the platform base plate (3); the number of the support fence frames (5) is four, and the four support fence frames (5) are respectively located at the four sides of the top surface of the platform base plate (3); a control box group (20) is fixedly installed in the middle of one side edge of the bottom surface of the security fence frame (10); the control box group (20) realizes the control of the motor group (15) through wiring; the top end of the threaded rotating shaft (18) is rotatably installed with a stabilizing slide seat (19).

3. The safety anti-falling protection mechanism for a construction hoist according to claim 2, characterized in that: The assembly bottom tube frame (1) comprises an assembly rib tube (101) and an assembly circular hole (102), wherein the assembly circular hole (102) is opened through the front and back sides of the assembly rib tube (101); the end face of the bottom I-shaped rib frame (2) is I-shaped, and the front end and the back end of the bottom I-shaped rib frame (2) are both welded and fixed to the assembly rib tube (101).

4. The safety anti-falling protection mechanism for a construction hoist according to claim 2, characterized in that: The support fence (5) comprises a supporting rib tube (501) and a rib tube longitudinal lining plate (502); one side of the supporting rib tube (501) close to the outer side of the platform substrate (3) is through-shaped, and the rib tube longitudinal lining plate (502) is fixedly mounted on the inner wall edge of the supporting rib tube (501) close to the opening; and the lengths of the supporting rib tubes (501) on the left and right sides of the platform substrate (3) are shorter than the supporting rib tubes (501) on the front and rear sides of the platform substrate (3).

5. The safety anti-falling protection mechanism for a construction elevator according to claim 2, characterized in that: A load-balanced mesh frame (6) is fixedly welded to the top of the working platform bottom plate (7) close to the inner side of the platform base plate (3); the load-balanced mesh frame (6) is fixedly welded to the bottom surface of the platform base plate (3).

6. The safety anti-falling protection mechanism for a construction hoist according to claim 5, characterized in that: The load-balanced mesh reinforcement frame (6) comprises transverse drag reinforcements (602) and longitudinal supporting arms (601), wherein the transverse drag reinforcements (602) are embedded and fixed on the top of the longitudinal supporting arms (601), and the top surfaces of the transverse drag reinforcements (602) and the longitudinal supporting arms (601) are arranged flush, and the transverse drag reinforcements (602) and the longitudinal supporting arms (601) form a grid structure.

7. The safety anti-falling protection mechanism for a construction hoist according to claim 1, characterized in that: A support hoop (401) is fixedly mounted on the top surface of the corner box frame (4), and the interior of the support hoop (401) is an octagonal through-groove structure that fits the surface of the octagonal prism (8), and the octagonal prism (8) is plugged into the interior of the support hoop (401); a surface-increasing gasket (901) is fixedly mounted on the top surface of the octagonal sliding prism tube (9), and the top surface of the octagonal sliding prism tube (9) is fixedly connected to the corner of the bottom surface of the security fence hoop frame (10) through the surface-increasing gasket (901), and the top surface and bottom surface of the surface-increasing gasket (901) are respectively welded and fixed to the security fence hoop frame (10) and the octagonal sliding prism tube (9).

8. The safety anti-falling protection mechanism for a construction hoist according to claim 1, characterized in that: The protective horizontal rail frame (13) is located above the protective bottom rail frame (14), the bottom ends of the slide rail pipe frame (12) and the protective bottom rail frame (14) are fixedly welded to the top surface of the support rail frame (5), the protective horizontal rail frame (13) includes a protective horizontal rail plate (1301) and a through horizontal groove (1302), and the through horizontal groove (1302) is opened through the plate surface of the protective horizontal rail plate (1301); the protective bottom rail frame (14) includes a protective bottom rail arm (1401) and a bottom rail through groove (1402), wherein the bottom rail through groove (1402) penetrates the protective bottom rail arm (1401); the slide rail tube frame (12) comprises a rail tube body (1201) and a rail tube support arm (1202), wherein the rail tube support arm (1202) is fixedly connected to the surface of the rail tube body (1201), and the rail tube body (1201) and the rail tube support arm (1202) are both fixedly welded to the rail tube body (1201) and the rail tube support arm (1202).

9. The safety anti-falling protection mechanism for a construction hoist according to claim 1, characterized in that: The internal thread buckle frame (17) comprises an internal thread tube (1702) and an octagonal plate (1701) supporting the tube outside. The internal thread tube (1702) longitudinally penetrates and is fixedly inserted into the center of the octagonal plate (1701) supporting the tube outside. The octagonal prism tube (8) and the octagonal sliding prism tube (9) are both regular octagonal prism tube structures.

10. The safety anti-falling protection mechanism for a construction hoist according to claim 1, characterized in that: The motor group (15) comprises a servo motor (1501) and a reducer (1502), the output end of the servo motor (1501) is connected to the input end of the reducer (1502), and the output end of the reducer (1502) is connected to the bottom end of the threaded rotating shaft (18); the stabilizing slide seat (19) comprises an octagonal sliding column (1901) and a sliding seat bearing (1902), the sliding seat bearing (1902) is installed on the bottom surface of the octagonal sliding column (1901), and the bottom surface of the octagonal sliding column (1901) is rotatably connected to the threaded rotating shaft (18) through the sliding seat bearing (1902), and the outer surface of the octagonal sliding column (1901) is slidably overlapped with the inner wall of the inner wall of the octagonal sliding lining rib tube (9); The control box assembly (20) comprises a box support plate (2001), a control box body (2002), a control button (2003), a wiring pipe opening (2004), an accidental touch protection fence (2005) and an operation touch-in groove (2006); the top of the control box body (2002) is fixedly connected to the bottom surface of the security fence hoop frame (10) through the box support plate (2001); the wiring pipe opening (2004) is arranged on the side of the box support plate (2001); the control button (2003) is arranged at the corner of the bottom surface of the control box body (2002); the accidental touch protection fence (2005) is fixedly connected to the edge of the bottom side of the control box body (2002); the operation touch-in groove (2006) is arranged in the middle of the accidental touch protection fence (2005), and the end of the operation touch-in groove (2006) is arc-shaped.

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