A building construction scaffold

Abstract

The present invention discloses a scaffold for building construction, and relates to the technical field of scaffolding, including two gantries with their gates aligned, a groove being provided at the top of the gantries, a moving mechanism being provided at the bottom of the two gantries, the gantries being moved by the moving mechanism, two equidistant unfolding components being provided between the two gantries, and the distance between the two gantries being adjusted by the two equidistant unfolding components, the two equidistant unfolding components being respectively provided at the two end positions of the top of the gates of the gantries, and a ladder being fixed on the outside of one of the gantries. The two gantries of the present invention are distance-adjusted by the two equidistant unfolding components, that is, the distance between the grooves at the tops of the two gantries is adjusted, so that support plates of different lengths can be placed. Compared with the replacement of the workbench, this replacement method is more convenient and quick, and the construction efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of scaffolds, in particular to a scaffold for building construction. Background Art

[0002] Scaffolding is a working platform set up to ensure the smooth progress of each construction process. According to the location of the scaffolding, it can be divided into external scaffolding and internal scaffolding; according to different materials, it can be divided into wooden scaffolding, bamboo scaffolding, and steel pipe scaffolding; according to the structural form, it can be divided into vertical pole scaffolding, bridge scaffolding, door scaffolding, suspended scaffolding, hanging scaffolding, cantilever scaffolding, and climbing scaffolding.

[0003] After searching, the Chinese patent document with the authorization announcement number CN118361090B discloses a construction scaffold, including a box body, the top of which is fixedly connected to a workbench through a hydraulic lifting device, and a guardrail is fixedly arranged on the outer surface of the top of the workbench, the bottom of which is fixedly connected to a base plate, and two spiral lifting devices are symmetrically arranged on both sides of the top of the base plate, and also includes: an adjustment mechanism; a buffer mechanism; an adsorption component; and a wheel collection component. This patent uses the installed support frame, connecting rod, and rotating shaft, etc., and utilizes the rotational connection between the support frame and the connecting rod and the rotational connection between the end of the connecting rod away from the support frame and the fixed block, so that the scaffold is first adjusted to its fixed position and angle when it is fixed, and then the scaffold is fixed by rotating the ground nails to the gap between the fixed plate and the clamping plate, so that the fixed angle is adjusted by the road surface before the scaffold is fixed, which enhances the adaptability of the device and also improves the stability and safety of the scaffold.

[0004] However, the above invention has the following shortcomings: the workbench of the above scaffolding is a steel structure (generally a plate-like object, such as a wooden board or a metal board). It can be seen that the length of the workbench cannot be adjusted. When the workers' range of activities increases, they need to replace the longer workbench or splice it. The replacement or splicing process is relatively cumbersome, which affects the construction progress to a certain extent. Summary of the invention

[0005] The object of the present invention is to provide a building construction scaffold to solve the problems raised in the above background technology.

[0006] The technical solution of the present invention is: a building construction scaffold, comprising two gantry frames with their gates aligned, a groove is provided on the top of the gantry frames, a moving mechanism is provided at the bottom of the two gantry frames, the gantry frames are moved by the moving mechanism, two equidistant expansion components are provided between the two gantry frames, and the distance between the two gantry frames is adjusted by the two equidistant expansion components, the two equidistant expansion components are respectively provided at the two ends of the top of the gantry of the gantry frames, and a ladder is fixed on the outside of one of the gantry frames;

[0007] Wherein, a plurality of supporting mechanisms are arranged on the equidistant deployment component, and the plurality of supporting mechanisms are equidistantly deployed through the equidistant deployment component.

[0008] Preferably, the moving mechanism comprises two universal wheels with brakes, and the two universal wheels with brakes are respectively fixed at the bottom of the gantry.

[0009] Preferably, the equidistant deployment component includes a plurality of linearly distributed reference blocks, the reference blocks at the two end positions are respectively fixed to the two gantries, and a first support tube and a first insertion tube are fixed at the two end positions of the gantry top of the gantry, wherein the first insertion tube of one of the gantries is slidably inserted into the first support tube on the other gantry, that is, the first support tube and the first insertion tube form a first telescopic structure, wherein the reference block is slidably mounted on the first telescopic structure, a first notch is provided on the top of the first support tube, and a first arc bar is provided on the top of the first insertion tube that is integral with it and coaxially arranged therewith, the outer diameter of the first arc bar is equal to the outer diameter of the first support tube, and the first arc bar is slidably inserted in the first notch of the first support tube, and a threaded rod is rotatably installed in one of the first support tubes, and the threaded rod is threadedly installed in the first insertion tube in the first support tube.

[0010] Preferably, the equidistant deployment assembly further comprises a connecting rod mechanism, wherein the connecting rod mechanism comprises two first connecting rods, a plurality of second connecting rods, a plurality of third connecting rods, two fourth connecting rods and a plurality of driven rods;

[0011] In which, a rotating hole is opened on the outer side of the reference block, and multiple follower rods are respectively rotatably installed in the rotating holes on the reference block, one end of the two first connecting rods is respectively sleeved and fixed on the follower rods at the two end positions, and the middle positions of multiple second connecting rods are respectively sleeved and fixed on the remaining follower rods, one end of every two adjacent second connecting rods forms a rotating fit, and one end of the second connecting rods at the two end positions is respectively rotatably installed on the other end of the two first connecting rods, one end of the two fourth connecting rods is respectively rotatably installed on the follower rods at the two end positions, and the middle positions of multiple third connecting rods are respectively rotated on the remaining follower rods, one end of every two adjacent third connecting rods forms a rotating fit, and one end of the third connecting rods at the two end positions is respectively rotatably installed on the other end of the two fourth connecting rods.

[0012] Preferably, the support mechanism comprises a support plate, one end of which is fixedly mounted on the reference block, and the inner bottom of the top groove of the gantry, the top of the support plate and the top of the reference block are flush.

[0013] Preferably, a reinforcing rib is fixed between the support plate and the reference block.

[0014] Preferably, a support frame is commonly fixed to the bottom of the support plates that are aligned on both sides, and rings are fixed at both ends of the bottom of the support frame, second support tubes are fixed to the outer sides of both ends of one of the gantry frames, and second insertion tubes are fixed to the outer sides of both ends of the other gantry frames, and the second insertion tubes are slidably inserted in the second support tube, that is, the second support tube and the second insertion tube form a first telescopic structure, wherein the ring is slidably sleeved on the second telescopic structure, a second notch is opened on the top of the first support tube, and a second arc bar is provided on the top of the second insertion tube that is integral with it and coaxially arranged therewith, the outer diameter of the second arc bar is equal to the outer diameter of the second support tube, and the second arc bar is slidably inserted in the second notch of the second support tube.

[0015] Preferably, a notch is provided at one end of the support plate, a first axial gear and two second axial gears are rotatably installed inside the notch, and the two second axial gears are respectively located on both sides of a first axial gear, the first axial gear is meshed with the second axial gear, a rotating rod is fixed to one side of the second axial gear, a top portion of the rotating rod protrudes upward and is flush with the top of the support plate, a second bevel gear coaxially arranged therewith is fixed to one end of the first axial gear, and a first bevel gear coaxially arranged therewith and meshed with the second bevel gear is fixed to one end of the driven rod.

[0016] Preferably, a support sleeve is fixed to the outer side of the support plate, and the driven rod is arranged in the support sleeve.

[0017] Preferably, guide rails with a T-shaped cross-section are fixed on both sides of the support plate, and a moving block is provided on the outer sliding sleeve of the guide rail. A side support rod is installed on the outer side of the moving block and rotates together with one end of the rotating rod, and a top part of the side support rod protrudes upward and is flush with the top of the support plate.

[0018] The present invention provides a building construction scaffold through improvement, which has the following beneficial effects compared with the prior art:

[0019] First, the two gantries of the present invention are adjusted in distance by two equidistant deployment components, that is, the distance between the grooves at the tops of the two gantries is adjusted, so that support plates of different lengths can be placed. Compared with the replacement or splicing of the workbench, this method is more convenient and faster, and the construction efficiency is improved;

[0020] Secondly, the support mechanism of the present invention is equidistantly deployed along with the equidistant deployment components, and the support mechanism can be evenly arranged under the support plate, which better disperses the pressure on the support plate, prevents the support plate from being deformed or broken due to excessive local pressure, and improves the support stability of the support plate.

[0021] Third: When the support mechanism of the present invention is equidistantly unfolded along with the equidistant unfolding assembly, the rotating rods on both sides of the support plate in the support mechanism are synchronously unfolded outward, and the rotating rods drive the side support rods to open outward, so that the contact range between the support mechanism and the support plate is further expanded, thereby improving the support mechanism's ability to disperse the pressure on the support plate, and further improving the support stability of the support plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the structure of the present invention in an elongated state;

[0025] Figure 3 It is a schematic diagram of the three-dimensional structure of the support mechanism of the present invention from a first viewing angle;

[0026] Figure 4 It is a schematic diagram of the three-dimensional structure of the support mechanism of the present invention from a second viewing angle;

[0027] Figure 5 This is a schematic diagram of the internal structure of one end of the support plate of the present invention;

[0028] Figure 6 It is a structural schematic diagram of the support mechanism of the present invention in an expanded state;

[0029] Figure 7 It is a schematic diagram of the three-dimensional structure of the gantry, the first support tube, the second support tube, the first insertion tube and the second insertion tube of the present invention;

[0030] Figure 8 For the present invention Figure 7 A schematic diagram of the structure is placed at point A;

[0031] Fig. 9 It is a schematic diagram of the three-dimensional structure of the support frame of the present invention.

[0032] Reference numerals:

[0033] 1. Gantry; 2. Universal wheel with brake; 3. Ladder; 4. Support mechanism; 5. Link mechanism; 6. First link; 7. Second link; 8. Third link; 9. Fourth link; 10. Follower rod; 11. Support plate; 12. Guide rail; 13. Moving block; 14. Side support rod; 15. Rotating rod; 16. Reference block; 17. Support sleeve; 18. First bevel gear; 19. Second bevel gear; 20. First shaft gear; 21. Second shaft gear; 22. First support cylinder; 23. First insert cylinder; 24. First arc strip; 25. Second support cylinder; 26. Second arc strip; 27. Second insert cylinder; 28. Threaded rod; 29. ​​Support frame; 30. Ring. DETAILED DESCRIPTION

[0034] The present invention is described in detail below, and the technical solutions in the embodiments of the present invention are clearly and completely described. 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.

[0035] The present invention provides a building construction scaffold through improvement, and the technical solution of the present invention is:

[0036] like Figures 1 to 9 As shown, an embodiment of the present invention provides a construction scaffold, including two gantry frames 1 with aligned gantries. The gantry frames 1 are made of steel structure material. In order to adjust the height, steel bars of the same height can be fixed at both ends of the bottom of the gantry frames 1.

[0037] Combined with Figure 1 and Figure 2 As shown, a groove is provided on the top of the gantry 1, and the groove is used to place a support plate 11. The support plate 11 is a prior art and can be other plate-like objects such as a wooden board or a steel plate.

[0038] Combined with Figure 1 As shown, the bottom of the two gantries 1 is provided with a moving mechanism, and the gantry 1 is moved by the moving mechanism. Specifically, the moving mechanism includes two braked universal wheels 2, and the two braked universal wheels 2 are respectively fixed at the bottom of the gantry 1. The braked universal wheels 2 are prior art, and the specific structure and working principle of the braked universal wheels 2 are not described here. The gantry 1 is moved by the braked universal wheels 2. Since the braked universal wheels 2 have brakes, after moving to the specified position, the brakes are activated to make the universal wheels immovable, so that the gantry 1 stops at the specified position;

[0039] Combined with Figure 1 , Figure 2 , Figure 7 and Figure 8As shown, two equidistant deployment components are provided between the two gantries 1, and the distance between the two gantries 1 is adjusted by the two equidistant deployment components, and the two equidistant deployment components are respectively provided at the two ends of the gantry top of the gantry 1;

[0040] Specific, combined Figure 7 As shown, the equidistant deployment component includes a plurality of linearly distributed reference blocks 16, the reference blocks 16 at both end positions are respectively fixed to the two gantries 1, and the first support tube 22 and the first insertion tube 23 are fixed at both end positions of the gantry top of the gantry 1, wherein the first insertion tube 23 of one gantry 1 is slidably inserted into the first support tube 22 on the other gantry 1, that is, the first support tube 22 and the first insertion tube 23 form a first telescopic structure, wherein the reference block 16 is slidably mounted on the first telescopic structure; it can be seen from the above connection relationship that the first support tube 22 and the first insertion tube 23 are arranged to enable the two gantries 1 to only move in a relative straight line, while providing support force for the reference block 16.

[0041] More specifically, Figure 8 As shown, a first notch is formed at the top of the first support tube 22, and a first arc strip 24 is formed on the top of the first insert tube 23 so as to be integrally formed with the first support tube 22 and coaxially formed with the first support tube 22. The outer diameter of the first arc strip 24 is equal to the outer diameter of the first support tube 22, and the first arc strip 24 is slidably inserted into the first notch of the first support tube 22. A threaded rod 28 is rotatably installed in one of the first support tubes 22, and the threaded rod 28 is threadedly installed in the first insert tube 23 in the first support tube 22. It can be seen from the above connection relationship that the first support tube 22 and the first insert tube 23 can be assembled. The first support tube 22 is formed into a complete cylinder, a part of the first support tube 22 is in contact with the reference block 16, thereby providing support force for the reference block 16, and the first arc bar 24 of the first insert tube 23 can be in contact with the reference block 16, thereby providing support force for the reference block 16. It can be seen that the first support tube 22 and the first insert tube 23 can both provide support force for the reference block 16; supplementary explanation is given to the threaded rod 28, one end of the threaded rod 28 is fixedly installed with a handle, and the worker rotates the threaded rod 28 through the handle, and the threaded rod 28 causes the first insert tube 23 to move along the first support tube 22 through threaded transmission.

[0042] More specifically, Figure 1 and Figure 2As shown, the equidistant deployment component also includes a connecting rod mechanism 5, which includes two first connecting rods 6, multiple second connecting rods 7, multiple third connecting rods 8, two fourth connecting rods 9 and multiple driven rods 10, wherein a rotating hole is opened on the outer side of the reference block 16, and the multiple driven rods 10 are respectively rotatably installed in the rotating holes on the reference block 16, one ends of the two first connecting rods 6 are respectively sleeved and fixed on the driven rods 10 at the two end positions, and the middle positions of the multiple second connecting rods 7 are respectively sleeved and fixed on the remaining driven rods 10, and one end of every two adjacent second connecting rods 7 forms a rotational fit, and one end of the second connecting rod 7 at the two end positions is respectively rotatably installed on the other end of the two first connecting rods 6, one end of the two fourth connecting rods 9 is respectively rotatably installed on the driven rods 10 at the two end positions, and the middle positions of the multiple third connecting rods 8 are respectively rotatably installed on the remaining driven rods 10 On the top, one end of every two adjacent third connecting rods 8 forms a rotational fit, and one end of the third connecting rod 8 at the two end positions is respectively rotatably installed on the other end of the two fourth connecting rods 9; it can be seen from the above connection relationship that the two first connecting rods 6, multiple second connecting rods 7, multiple third connecting rods 8, two fourth connecting rods 9 and multiple driven rods 10 form a scissors-type connection, and the scissors-type connection is a prior art, and its specific structure and working principle are not elaborated in detail here; when the two gantries 1 are pulled away from each other, the scissors-type connection composed of the two first connecting rods 6, multiple second connecting rods 7, multiple third connecting rods 8, two fourth connecting rods 9 and multiple driven rods 10 is elongated, and the scissors-type connection makes each driven rod 10 unfold equidistantly, that is, each reference block 16 unfolds equidistantly, wherein the first connecting rod 6 and the second connecting rod 7 drive the driven rod 10 fixed to each other to rotate.

[0043] A ladder 3 is fixed on the outside of one of the gantries 1, and the ladder 3 can also be fixed on the two gantries 1. The ladder 3 is provided to make it easier for workers to climb;

[0044] Wherein, a plurality of supporting mechanisms 4 are arranged on the equidistant deployment component, and the plurality of supporting mechanisms 4 are equidistantly deployed through the equidistant deployment component.

[0045] Specifically, combined with Figure 3 As shown, the support mechanism 4 includes a support plate 11, one end of which is fixedly mounted on a reference block 16. The inner bottom of the top groove of the gantry 1, the top of the support plate 11 and the top of the reference block 16 are flush with each other. The purpose of the flush setting of the three is to make the placed support plate 11 better fit the top of the entire scaffolding.

[0046] Specifically, combined with Figure 4 As shown, a reinforcing rib is fixed between the support plate 11 and the reference block 16 . The reinforcing rib is provided to increase the connection strength between the support plate 11 and the reference block 16 .

[0047] More specifically, Figure 1 , Figure 2 and Fig. 9 As shown, a support frame 29 is fixed to the bottom of the support plates 11 aligned on both sides, and collars 30 are fixed to the two ends of the bottom of the support frame 29. Second support tubes 25 are fixed to the outer sides of both ends of one of the gantry frames 1, and second insert tubes 27 are fixed to the outer sides of both ends of the other gantry frame 1. The second insert tube 27 is slidably inserted into the second support tube 25, that is, the second support tube 25 and the second insert tube 27 form a first telescopic structure, wherein the collar 30 is slidably sleeved on the second telescopic structure, a second notch is opened on the top of the first support tube 22, and a second arc strip 26 which is integrally structured with and coaxially arranged with the second insert tube 27 is provided on the top of the second insert tube 27. The second arc strip 26 The outer diameter of the second support tube 25 is equal to the outer diameter of the second support tube 25, and the second arc bar 26 is slidably inserted into the second notch of the second support tube 25. Through the above connection relationship, it can be seen that the second support tube 25 and the second inserted tube 27 can form a complete cylinder, and a part of the second support tube 25 is in contact with the support frame 29, thereby providing a supporting force to the support frame 29. The first arc bar 24 of the second inserted tube 27 can contact the support frame 29 to provide a supporting force to the support frame 29. It can be seen that the first support tube 22 and the first inserted tube 23 can both provide a supporting force to the support frame 29, and the support frame 29 provides a supporting force for the two support plates 11, thereby improving the supporting capacity of the support plates 11.

[0048] More specifically, Figure 3-Figure 6 As shown, a notch is provided at one end of the support plate 11, and a first shaft gear 20 and two second shaft gears 21 are rotatably installed inside the notch, and the two second shaft gears 21 are respectively located on both sides of a first shaft gear 20, and the first shaft gear 20 is meshed with the second shaft gear 21. A rotating rod 15 is fixed to one side of the second shaft gear 21, and a portion of the top of the rotating rod 15 protrudes upward and is flush with the top of the support plate 11. A second bevel gear 19 coaxially arranged therewith is fixed to one end of the first shaft gear 20, and the driven rod A first bevel gear 18 coaxially arranged and meshing with a second bevel gear 19 is fixed to one end of 10. It can be seen from the above connection relationship that when the driven rod 10 rotates, the driven rod 10 drives the first bevel gear 18 fixed thereto to rotate, and the first bevel gear 18 drives the first shaft gear 20 to rotate through the second bevel gear 19 meshing therewith, the first shaft gear 20 causes the second shaft gear 21 to rotate, and the second shaft gear 21 drives the rotating rod 15 to rotate, that is, the rotating rods 15 on both sides of the support plate 11 are extended outward.

[0049] Specifically, combined with Figure 4 As shown, a support sleeve 17 is fixed to the outer side of the support plate 11, and the driven rod 10 is arranged in the support sleeve 17. The support sleeve 17 is arranged to make the driven rod 10 more stable.

[0050] Specifically, combined with Figure 6 As shown, guide rails 12 with a T-shaped cross-section are fixed on both sides of the support plate 11, and a moving block 13 is provided on the outer sliding sleeve of the guide rail 12. A side support rod 14 is installed on the outer side of the moving block 13 to rotate together with one end of the rotating rod 15, and a top part of the side support rod 14 protrudes upward and is flush with the top of the support plate 11. When the rotating rod 15 is expanded outward, the rotating rod 15 pushes the moving block 13 through the side support rod 14, and the moving block 13 moves on the guide rail 12, and the side support rod 14 can be expanded outward, thereby expanding the contact range of the entire support mechanism 4.

[0051] Working principle: The worker rotates the threaded rod 28 by the handle, and the threaded rod 28 moves the first inserting tube 23 along the first supporting tube 22 through the thread transmission, thereby adjusting the relative straight-line distance between the two gantries 1, that is, adjusting the distance between the top grooves of the two gantries 1, so that support plates 11 of different lengths can be placed;

[0052] When the two gantries 1 are pulled away from each other, the scissor-type links composed of the two first links 6, the multiple second links 7, the multiple third links 8, the two fourth links 9 and the multiple follower rods 10 are lengthened, and the scissor-type links make the follower rods 10 unfold at equal distances, that is, the reference blocks 16 unfold at equal distances, and the support mechanism 4 unfolds at equal distances along with the reference blocks 16. The support mechanism 4 can be more evenly arranged below the support plate 11, and the pressure on the support plate 11 is better dispersed, so as to prevent the support plate 11 from being deformed or broken due to excessive local pressure, thereby improving the support stability of the support plate 11;

[0053] The above-mentioned first connecting rod 6 and second connecting rod 7 drive the driven rod 10 fixed to each other to rotate. When the driven rod 10 rotates, the driven rod 10 drives the first bevel gear 18 fixed thereto to rotate. The first bevel gear 18 drives the first axial gear 20 to rotate through the second bevel gear 19 meshing therewith. The first axial gear 20 causes the second axial gear 21 to rotate. The second axial gear 21 drives the rotating rod 15 to rotate, that is, the rotating rods 15 on both sides of the support plate 11 are both expanded outward. When the rotating rods 15 are expanded outward, the rotating rods 15 push the moving block 13 through the side support rods 14. The moving block 13 moves on the guide rail 12, and the side support rods 14 can be expanded outward, thereby expanding the contact range of the entire support mechanism 4.

[0054] The above description enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A construction scaffold, comprising two gantries (1) with their gantries aligned, wherein a ladder (3) is fixed to the outer side of one of the gantries (1), characterized in that: A groove is provided at the top of the gantry (1); a moving mechanism is provided at the bottom of the two gantry frames (1); the gantry frames (1) are moved by the moving mechanism; two equidistant expansion components are provided between the two gantry frames (1); and the distance between the two gantry frames (1) is adjusted by the two equidistant expansion components; the two equidistant expansion components are respectively provided at the two ends of the gantry top of the gantry frames (1); Wherein, a plurality of supporting mechanisms (4) are arranged on the equidistant deployment component, and the plurality of supporting mechanisms (4) are equidistantly deployed through the equidistant deployment component; The equidistant deployment component comprises a plurality of linearly distributed reference blocks (16), wherein the reference blocks (16) at both end positions are respectively fixed to the two gantries (1); The equidistant deployment assembly further comprises a connecting rod mechanism (5), wherein the connecting rod mechanism (5) comprises two first connecting rods (6), a plurality of second connecting rods (7), a plurality of third connecting rods (8), two fourth connecting rods (9), and a plurality of driven rods (10); Wherein, a rotation hole is provided on the outer side of the reference block (16), and a plurality of driven rods (10) are rotatably mounted in the rotation holes on the reference block (16); The support mechanism (4) comprises a support plate (11), one end of the support plate (11) being fixedly mounted on a reference block (16), and the inner bottom of the top groove of the gantry (1), the top of the support plate (11) and the top of the reference block (16) are flush with each other; A notch is provided at one end of the support plate (11), and a first shaft gear (20) and two second shaft gears (21) are rotatably mounted inside the notch, and the two second shaft gears (21) are respectively located on both sides of the first shaft gear (20), and the first shaft gear (20) is meshed with the second shaft gear (21), and a rotating rod (15) is fixed on one side of the second shaft gear (21), and a top portion of the rotating rod (15) protrudes upward and is flush with the top of the support plate (11), and a second bevel gear (19) coaxially arranged therewith is fixed at one end of the first shaft gear (20), and a first bevel gear (18) coaxially arranged therewith and meshing with the second bevel gear (19) is fixed at one end of the driven rod (10).

2. A construction scaffold according to claim 1, characterized in that: The moving mechanism comprises two universal wheels (2) with brakes, and the two universal wheels (2) with brakes are respectively fixed at the bottom of the gantry (1).

3. A construction scaffold according to claim 1, characterized in that: A first support tube (22) and a first insertion tube (23) are fixed at both ends of the gantry top of the gantry (1), wherein the first insertion tube (23) of one of the gantry (1) is slidably inserted into the first support tube (22) on the other gantry (1), that is, the first support tube (22) and the first insertion tube (23) form a first telescopic structure, wherein the reference block (16) is slidably sleeved on the first telescopic structure, a first notch is provided at the top of the first support tube (22), a first arc strip (24) which is integrally structured with and coaxially arranged with the first insertion tube (23) is provided at the top of the first insertion tube (23), the outer diameter of the first arc strip (24) is equal to the outer diameter of the first support tube (22), and the first arc strip (24) is slidably inserted into the first notch of the first support tube (22), a threaded rod (28) is rotatably installed in one of the first support tubes (22), and the threaded rod (28) is threadedly installed in the first insertion tube (23) in the first support tube (22) where it is located.

4. A construction scaffold according to claim 3, characterized in that: One ends of the two first connecting rods (6) are respectively sleeved and fixed on the driven rods (10) at the two end positions, the middle positions of the plurality of second connecting rods (7) are respectively sleeved and fixed on the remaining driven rods (10), one ends of every two adjacent second connecting rods (7) form a rotational fit, and one ends of the second connecting rods (7) at the two end positions are respectively rotationally mounted on the two first connecting rods (6), one ends of the two fourth connecting rods (9) are respectively rotationally mounted on the driven rods (10) at the two end positions, the middle positions of the plurality of third connecting rods (8) are respectively rotationally mounted on the remaining driven rods (10), one ends of every two adjacent third connecting rods (8) form a rotational fit, and one ends of the third connecting rods (8) at the two end positions are respectively rotationally mounted on the other ends of the two fourth connecting rods (9).

5. A construction scaffold according to claim 3, characterized in that: A reinforcing rib is fixed between the support plate (11) and the reference block (16).

6. A construction scaffold according to claim 5, characterized in that: A support frame (29) is fixed to the bottom of the support plates (11) aligned on both sides, and sleeve rings (30) are fixed to both ends of the bottom of the support frame (29), and a second support tube (25) is fixed to the outer side of both ends of one of the gantry frames (1), and a second insertion tube (27) is fixed to the outer side of both ends of the other gantry frame (1), and the second insertion tube (27) is slidably inserted in the second support tube (25), that is, the second support tube (25) and the second insertion tube (27) form a second telescopic structure, wherein the sleeve ring (30) is slidably sleeved on the second telescopic structure, and a second notch is opened at the top of the first support tube (22), and a second arc strip (26) which is integrally structured with and coaxially arranged with the second insertion tube (27) is arranged at the top of the second insertion tube (27), and the outer diameter of the second arc strip (26) is equal to the outer diameter of the second support tube (25), and the second arc strip (26) is slidably inserted in the second notch of the second support tube (25).

7. A construction scaffold according to claim 6, characterized in that: A support sleeve (17) is fixed to the outer side of the support plate (11), and the driven rod (10) is arranged in the support sleeve (17).

8. A construction scaffold according to claim 1, characterized in that: Guide rails (12) with a T-shaped cross section are fixed on both sides of the support plate (11); a moving block (13) is provided on the outer sliding sleeve of the guide rail (12); a side support rod (14) is mounted on the outer side of the moving block (13) so as to rotate together with one end of a rotating rod (15); and a top portion of the side support rod (14) protrudes upward and is flush with the top of the support plate (11).

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