Scaffold support

Abstract

The invention relates to the technical field of construction parts, in particular to a scaffold support. The scaffold support comprises a supporting plate, a mounting plate, a lifting block, a pedal, an anti-falling mechanism and two limiting blocks, the two limiting blocks are opposite, the two sides of the lifting block are slidably connected with the two limiting blocks respectively, the pedal is fixed to the lifting block, the anti-falling mechanism comprises a rotating shaft, a driving gear and two locking structures, the rotating shaft is rotatably connected with the limiting blocks, and the driving gear is fixed to the supporting plate. The driving gears are fixed to the rotating shaft, the locking structures correspond to the limiting blocks one to one, each locking structure comprises a ratchet wheel, a brake block and a rotating shaft handle, the rotating shaft handles are connected with the brake blocks, the lifting blocks are provided with row teeth, the driving gears are meshed with the row teeth, the ratchet wheels are installed at the end of the rotating shaft, the brake blocks are rotationally connected with the corresponding limiting blocks, and the ratchet wheels are provided with two sets of one-way ratchets. The one-way locking directions of the two sets of ratchets are opposite, the brake block is provided with two sets of limiting teeth, and the two sets of limiting teeth are used for being meshed with the two sets of ratchets for self-locking so as to limit forward rotation or reverse rotation of the ratchet wheel.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of construction parts, more particularly, to a scaffold support. BACKGROUND

[0002] In the field of modern building construction, a scaffold can provide a safe and reliable working platform for construction personnel operation and material stacking, and is widely used in main structure construction, outer wall decoration, equipment installation and other working scenes.

[0003] However, in the actual construction process, especially in the face of high-rise or complex working conditions, the use scene of the scaffold is often accompanied by dynamically changing loads and uncertain external influences: on the one hand, in order to adapt to different construction height requirements, the scaffold platform needs to be frequently adjusted in height; on the other hand, the back and forth movement of personnel and the transfer and stacking of materials during the operation process will cause the support system to continuously bear dynamic loads. Under such working conditions, once the scaffold support system encounters unexpected impact (such as accidental falling of components, collision of external objects) or overloading, it is easy to cause unexpected falling accidents, which not only causes damage to equipment, but also directly threatens the safety of construction personnel's life, therefore, ensuring the anti-falling safety of the scaffold under dynamic working conditions has become one of the core technical requirements in the field of building construction.

[0004] In order to solve the above anti-falling problem, two types of improvement schemes are mainly used in the prior art: one is to install a mechanical limit pin, which limits the falling displacement of the scaffold platform by the cooperation of the pin and the corresponding slot; the other is to set a friction brake, which uses the friction force between the brake member and the brake wheel to offset the falling trend of the platform. However, both of these two types of schemes have obvious defects in actual application: for the mechanical limit pin, it needs to be manually switched according to the lifting position of the scaffold platform, which not only has a complicated operation process, but also increases the labor intensity of the construction personnel, and in the event of a sudden falling scene, the response delay of manual operation makes it difficult to achieve immediate locking, which cannot effectively avoid safety risks; for the friction brake, its braking effect is highly dependent on the contact friction force between the brake member and the brake wheel, and in the process of long-term load bearing, the brake member is easy to cause the brake gap to gradually increase due to wear, and the friction force is attenuated, which makes the reliability of the brake significantly decreased, especially in the moment of sudden load, it cannot achieve rigid locking, which leads to the failure of the anti-falling function, and there are still serious safety hazards. SUMMARY

[0005] Therefore, the present application provides a scaffold support, which aims to improve the low safety and use stability of the prior art under dynamic working conditions.

[0006] The present application provides a scaffold support, which comprises:

[0007] A support plate is arranged in a vertical state and is fixed relative to a horizontal plane;

[0008] A mounting plate is arranged parallel to the support plate and is detachably fixedly connected to the support plate;

[0009] Two limiting blocks are oppositely arranged along a horizontal first direction and are fixedly connected to the mounting plate on the same side along a horizontal second direction perpendicular to the horizontal first direction;

[0010] A lifting block is arranged between the two limiting blocks and is slidably connected to the two limiting blocks on both sides along the horizontal first direction;

[0011] A pedal extends along the horizontal second direction and is fixedly connected to the lifting block at one end; and

[0012] A fall-preventing mechanism includes a rotating shaft, a driving gear and two locking structures. The rotating shaft is rotatably connected to the two limiting blocks at both ends. The driving gear is fixedly installed on the rotating shaft and located between the two limiting blocks. Each locking structure corresponds to one limiting block and is located on the side of the corresponding limiting block away from the other limiting block. Each locking structure includes a ratchet wheel, a brake block and a rotating shaft handle. The rotating shaft handle is connected to the brake block. The side of the lifting block away from the pedal is provided with a row of teeth. The driving gear is engaged with the row of teeth. The ratchet wheel is installed on the end of the rotating shaft. The brake block is rotatably connected to the corresponding limiting block. The ratchet wheel is provided with two groups of one-way ratchet teeth. The one-way locking directions of the two groups of ratchet teeth are opposite. The brake block is provided with two groups of limiting teeth. The two groups of limiting teeth are used to engage with the two groups of ratchet teeth for self-locking to limit the forward or reverse rotation of the ratchet wheel.

[0013] Preferably, each locking structure further includes a brake spring and a locking ball. The brake block is provided with two circular grooves. The locking ball is embedded in one of the two circular grooves. The first end of the brake spring is fixedly connected to the corresponding limiting block. The second end of the brake spring is fixedly connected to the locking ball.

[0014] Preferably, each locking structure further includes an assembly shell provided with a mounting cavity. The ratchet wheel, the brake block, the locking ball and the brake spring are all installed in the mounting cavity. The rotating shaft extends from the mounting cavity to the outside of the assembly shell. The rotating shaft handle is located outside the assembly shell.

[0015] Preferably, the pedal includes a main body plate provided with a groove. The groove is sequentially provided with a stepping plate, a steel mesh and a buffer pad layer from top to bottom.

[0016] Preferably, the mounting plate is connected with the support plate through a mounting assembly, and the mounting assembly is configured as a bolt-nut assembly.

[0017] Preferably, the mounting plate is connected with the support plate through a mounting assembly, and the mounting assembly comprises a mounting seat, a sliding column, a clamping column and an assembly spring, the clamping column is fixedly connected to the outer periphery of the sliding column; the support plate is provided with a connecting hole and an embedding groove, the embedding groove is communicated with the connecting hole, the mounting plate is located in the connecting hole, and the mounting seat is fixedly installed in the embedding groove;

[0018] The mounting seat is provided with a mounting groove, and the side wall of the mounting groove is provided with a first clamping groove and a second clamping groove, and the second clamping groove is located between the first clamping groove and the connecting hole in a horizontal first direction.

[0019] The sliding column is arranged in the mounting groove, one end of the assembly spring is connected with the first end of the sliding column, and the other end of the assembly spring is connected with the groove bottom of the mounting groove.

[0020] The clamping column is arranged in the first clamping groove or the second clamping groove, and when the clamping column is arranged in the second clamping groove, the second end of the sliding column abuts against the side surface of the mounting plate; when the clamping column is arranged in the first clamping groove, the second end of the sliding column has a certain gap with the mounting plate.

[0021] Preferably, both sides of the lifting block are provided with sliding blocks.

[0022] The limiting block is provided with sliding grooves on both sides in a horizontal second direction, the two side walls of the sliding grooves are provided with a plurality of assembly grooves, one end of a reset spring is connected with the groove bottom of the assembly grooves, and the other end of the reset spring is connected with one side of a stabilizing block; the sliding block is arranged in the sliding groove, and the other side of the stabilizing block abuts against the sliding block.

[0023] Preferably, the cross sections of the sliding block and the sliding groove are adapted trapezoids.

[0024] Preferably, the number of the driving gears is a plurality, and the plurality of driving gears are arranged at intervals along the rotating shaft, and each driving gear is engaged with the row of teeth.

[0025] Preferably, the buffer pad layer further comprises a sponge pad and a plurality of buffer springs arranged along the length direction of the treading plate, the buffer springs are arranged in the sponge pad, and both ends of the buffer springs are fixedly connected with the opposite side walls of the grooves.

[0026] Compared with the prior art, the scaffold support provided in the application at least has the following beneficial effects:

[0027] The anti-falling mechanism includes a rotating shaft, a driving gear and two locking structures, the two locking structures correspond to two limiting blocks respectively and are connected with the end of the rotating shaft, forming "double path locking", and the safety redundancy is improved. The locking structure includes a ratchet wheel, a brake block and a rotating shaft handle, the ratchet wheel is provided with two groups of ratchet teeth with opposite one-way locking directions on the outer periphery, and is matched with two groups of corresponding limiting teeth on the brake block, so that the meshing state can be switched according to the requirement; in normal use or power failure, one group of ratchet teeth is meshed with the limiting teeth, and the two vertical surfaces are rigidly contacted, so that the ratchet wheel can be instantly clamped, the power transmission chain of "pedal falling → gear moving → driving gear rotating → rotating shaft rotating" is cut off, the problem of "friction wear failure" of the existing friction brake is avoided, the "sudden falling and locking" is realized, and the locking rigidity is guaranteed from the mechanical level, and the anti-falling effect is better. In addition, the rotating shaft handle can drive the brake block to rotate, realize the switching of the meshing and separation of the two groups of limiting teeth and the ratchet teeth, the operation process is simple and labor-saving, compared with the existing mechanical bolt "manual slot searching, repeated plugging and unplugging", the operation process is simplified, the labor intensity of the construction personnel is reduced, and the structure is especially suitable for the scene of frequent height switching such as external wall decoration.

[0028] Moreover, in the present application, the lifting block is slidably connected with the two limiting blocks on the two sides of the horizontal first direction, so as to provide stable guidance for the lifting block and avoid lateral deviation during lifting; at the same time, the gear on the side, away from the pedal, of the lifting block is meshed with the driving gear, so as to ensure the transmission continuity of "pedal lifting → gear moving → driving gear rotating → rotating shaft rotating", cooperate with the meshing state of the ratchet teeth and the limiting teeth, realize "unobstructed lifting / descending and automatic locking when stopping", and solve the low efficiency problem of the existing solution "adjusting and locking need to be operated step by step".

[0029] In addition, in the present application, the ratchet wheel, the ratchet teeth and the limiting teeth of the anti-falling mechanism are all rigid members, and the locking is realized by "vertical surface contact" instead of relying on friction contact, so as to avoid the problem of "wear of the brake member and the brake wheel due to continuous friction" of the existing friction brake. Even if long-term dynamic load (such as personnel walking and material transfer) is borne, the tooth surface only bears intermittent impact, and there is no "clearance increase and locking failure" caused by continuous wear, the service life is prolonged, and the cost demand of long-term reuse of building construction is met.

[0030] Of course, any product implementing the present application does not necessarily need to achieve all the technical effects described above at the same time.

[0031] Other characteristics and advantages of the present application will become clear from the following detailed description of exemplary embodiments of the present application with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0032] The accompanying drawings incorporated in and forming a part of the specification, illustrate embodiments of the present application and, together with the description, serve to explain the principles of the present application.

[0033] Figure 1 Fig. 1 is a perspective view of a scaffold support provided by an embodiment of the present application;

[0034] Figure 2 Fig. 2 is another perspective view of a scaffold support provided by an embodiment of the present application;

[0035] Figure 3 Fig. 3 is an assembly view of a locking structure and an assembly shell in an embodiment of the present application;

[0036] Figure 4 Fig. 4 is a structural view of a locking structure in an embodiment of the present application (1);

[0037] Figure 5 Fig. 5 is a structural view of a locking structure in an embodiment of the present application (2);

[0038] Figure 6 Fig. 6 is a structural view of a pedal in an embodiment of the present application;

[0039] Figure 7 Fig. 7 is an assembly view of a support plate and a mounting plate in an embodiment of the present application;

[0040] Figure 8 Fig. 8 is a structural view of a mounting assembly in an embodiment of the present application;

[0041] Figure 9 Fig. 9 is an assembly view of a limiting block and a lifting block in an embodiment of the present application.

[0042] BRIEF DESCRIPTION OF THE DRAWINGS

[0043] 100 - support plate, 110 - connecting hole, 120 - embedding groove, 200 - mounting plate, 300 - limiting block, 310 - sliding groove, 320 - assembly groove, 330 - return spring, 340 - stabilizing block, 400 - lifting block, 410 - gear rack, 420 - sliding block, 500 - pedal, 510 - main plate, 511 - recess, 520 - pressing plate, 530 - steel mesh, 540 - cushioning layer, 550 - buffer spring, 600 - anti-falling mechanism, 610 - rotating shaft, 620 - driving gear, 630 - locking structure, 631 - ratchet, 6311 - ratchet teeth, 632 - brake block, 6321 - limiting teeth, 6322 - circular groove, 633 - rotating shaft, 634 - brake spring, 635 - locking ball, 636 - rotating shaft handle, 640 - assembly shell, 641 - mounting cavity, 700 - mounting assembly, 710 - mounting seat, 711 - mounting groove, 712 - clamping groove, 720 - sliding column, 730 - clamping column, 740 - assembly spring. DETAILED DESCRIPTION

[0044] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present application.

[0045] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the scope of this application and its application or use.

[0046] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0047] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0048] Various modifications and variations can be made to this application without departing from its spirit or scope, which will be apparent to those skilled in the art. Therefore, this application is intended to cover modifications and variations falling within the scope of the corresponding claims (the claimed technical solutions) and their equivalents. It should be noted that the embodiments provided in this application can be combined with each other without contradiction.

[0049] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0050] Figure 1 The figure shown is a three-dimensional schematic diagram of the scaffold support structure provided in the embodiment of this application. Figure 2 The figure shown is another perspective view of the scaffolding support structure provided in the embodiment of this application. Figure 3 The diagram shown is a schematic representation of the assembly structure of the locking structure and the assembly shell in an embodiment of this application. Figure 4 The diagram shown is a schematic representation of the locking structure in an embodiment of this application. Figure 5 The diagram shown is a schematic diagram (II) of the locking structure in an embodiment of this application.

[0051] Please refer to Figures 1 to 5 This application provides a scaffold support, including a support plate 100, a mounting plate 200, a lifting block 400, a footboard 500, a fall protection mechanism 600, and two limit blocks 300.

[0052] The support plate 100 is arranged in a vertical state and is fixed relative to the horizontal plane. The fixing modes include two modes: one is that the bottom end of the support plate 100 is fixed to the horizontal plane, and the other is that the whole support plate 100 is fixed to the wall surface (such as the building wall). The above two modes can ensure that the support plate 100 is fixed relative to the horizontal plane and maintains the vertical posture. The plate surface of the mounting plate 200 is parallel to the support plate 100, and the mounting plate 200 is detachably and fixedly connected with the support plate 100. The two limiting blocks 300 are arranged opposite to each other along the horizontal first direction, and the two limiting blocks 300 are fixedly connected with the mounting plate 200 on the same side in the horizontal second direction. The horizontal first direction is perpendicular to the horizontal second direction. The lifting block 400 is located between the two limiting blocks 300, and the lifting block 400 is slidingly connected with the two limiting blocks 300 on the two sides in the horizontal first direction. The pedal 500 extends along the horizontal second direction, and one end of the pedal 500 is fixedly connected with the lifting block 400.

[0053] The anti-falling mechanism 600 includes a rotating shaft 610, a driving gear 620 and two locking structures 630. The two ends of the rotating shaft 610 are rotatably connected with the two limiting blocks 300, respectively. The driving gear 620 is fixedly installed on the rotating shaft 610 and located between the two limiting blocks 300. Each locking structure 630 corresponds to one limiting block 300, and the locking structure 630 is located on the side of the corresponding limiting block 300 away from the other limiting block 300. Each locking structure 630 includes a ratchet wheel 631, a brake block 632 and a rotating shaft handle 636. The rotating shaft handle 636 is connected with the brake block 632. The side of the lifting block 400 away from the pedal 500 is provided with a row of teeth 410. The driving gear 620 is meshed with the row of teeth 410. The ratchet wheel 631 is installed on the end of the rotating shaft 610. The brake block 632 is rotatably connected with the corresponding limiting block 300. The ratchet wheel 631 is provided with two groups of one-way ratchet teeth 6311. The one-way locking directions of the two groups of ratchet teeth 6311 are opposite. The brake block 632 is provided with two groups of limiting teeth 6321. The two groups of limiting teeth 6321 are used for being meshed with the two groups of ratchet teeth 6311 respectively to be self-locked to limit the forward or reverse rotation of the ratchet wheel 631.

[0054] In order to clearly describe the working process of the scaffold support, the right locking structure 630 in the placement orientation shown in Figure 2 will be taken as the core analysis object. First, the key components of the structure are marked, and then the working principles of the two self-locking states are analyzed in detail. The specific contents are as follows:

[0055] The two groups of ratchet teeth 6311 are marked as group A ratchet teeth 6311-1 and group B ratchet teeth 6311-2, respectively. The two groups of limiting teeth 6321 are marked as first limiting teeth 6321-1 and second limiting teeth 6321-2, respectively.

[0056] Among them, see Figure 4When the locking structure 630 is in this working state, the A group of ratchets 6311-1 and the first limiting teeth 6321-1 can be engaged and self-locked, and when they are engaged and self-locked, since the A group of ratchets 6311-1 is designed in one direction, the vertical surface thereof will form a rigid resistance with the vertical surface of the first limiting teeth 6321-1, and cannot be separated by sliding, and the ratchet wheel 631 is clamped by the brake block 632. Based on the above rigid resistance structure, the rotating direction of the ratchet wheel 631 is strictly limited: the ratchet wheel 631 can rotate freely in the clockwise direction (at this time, the inclined surface of the A group of ratchets 6311-1 slides relative to the inclined surface of the first limiting teeth 6321-1, and no resistance is formed), which corresponds to the descending action of the lifting block 400 and the pedal 500, and meets the adaptive requirements of height adjustment; because the counterclockwise rotation of the ratchet wheel 631 will further intensify the vertical surface resistance of the A group of ratchets 6311-1 and the first limiting teeth 6321-1, the locking effect is stronger, therefore, the ratchet wheel 631 cannot rotate in the counterclockwise direction. That is to say, when the A group of ratchets 6311-1 and the first limiting teeth 6321-1 are engaged and self-locked, the ratchet wheel 631 is allowed to rotate clockwise (corresponding to the descent of the lifting block 400 and the pedal 500), but the ratchet wheel 631 is not allowed to rotate counterclockwise (corresponding to the ascent of the lifting block 400 and the pedal 500).

[0057] See Figure 5 When the locking structure 630 is switched to this working state, the B group of ratchets 6311-2 and the second limiting teeth 6321-2 can be engaged and self-locked, and when they are engaged and self-locked, the working principle thereof is reverse complementary to the above state, which is as follows: the B group of ratchets 6311-2 is also designed in one direction, and the vertical surface thereof will form a rigid resistance with the vertical surface of the second limiting teeth 6321-1, and cannot be separated by sliding, and the ratchet wheel 631 is clamped by the brake block 632. The resistance structure controls the rotating direction of the ratchet wheel 631 reversely, which adapts to the different adjustment requirements of the scaffold support: the ratchet wheel 631 can rotate freely in the counterclockwise direction (the inclined surface of the B group of ratchets 6311-2 slides relative to the inclined surface of the second limiting teeth 6321-1, and no resistance is formed), which corresponds to the ascending action of the lifting block 400 and the pedal 500, and meets the adaptive requirements of height adjustment; because the clockwise rotation of the ratchet wheel 631 will intensify the vertical surface resistance of the B group of ratchets 6311-2 and the second limiting teeth 6321-1, the locking effect is stronger, therefore, the ratchet wheel 631 cannot rotate in the clockwise direction. That is to say, when the B group of ratchets 6311-2 and the second limiting teeth 6321-2 are engaged and self-locked, the ratchet wheel 631 is allowed to rotate counterclockwise (corresponding to the ascent of the lifting block 400 and the pedal 500), but the ratchet wheel 631 is not allowed to rotate clockwise (corresponding to the descent of the lifting block 400 and the pedal 500).

[0058] In the state of switching the locking structure 630, the operation rotates the rotating shaft handle 636, which drives the brake block 632 to start rotating, so that the first limiting teeth 6321-1 and the A group of ratchet teeth 6311-1 (or the second limiting teeth 6321-2 and the B group of ratchet teeth 6311-2) that are meshed and locked together are separated, and the rotating shaft handle 636 is continuously rotated until the second limiting teeth 6321-2 and the B group of ratchet teeth 6311-2 (or the first limiting teeth 6321-1 and the A group of ratchet teeth 6311-1) are meshed and locked together.

[0059] When the scaffold support is in normal use, the pedal 500 forms a work platform for personnel to stand and materials to be placed, at this time, the pedal 500 has a downward movement tendency due to force, so that the row of teeth 410 has a tendency to drive the driving gear 620 to rotate clockwise, the driving gear 620 and the ratchet wheel 630 are both installed on the rotating shaft 610, and then the rotating shaft 610 and the ratchet wheel 631 also have a tendency to rotate clockwise (the movement tendency is represented by a light color dotted arrow). Figure 5 In the initial state, the second limiting teeth 6321-2 and the B group of ratchet teeth 6311-2 are meshed and locked, which limits the clockwise rotation of the ratchet wheel 631, and then limits the clockwise rotation of the rotating shaft 610 and the driving gear 620, so that the row of teeth 410 cannot move downward, preventing the lifting block 400 from falling, and the downward movement of the pedal 500 is locked, ensuring that the personnel (and materials) can reliably and stably stand (and place) on the pedal 500.

[0060] When the height of the pedal 500 needs to be raised during construction, refer to Figure 1 、 Figure 2 and Figure 5, the external power (such as a jack) drives the pedal 500 (or lifting block 400) to rise, at this time, the row of teeth 410 is synchronously moved upward, which will drive the rotating shaft 610 to rotate counterclockwise, at this time, the second limiting tooth 6321-2 is engaged with the B group of ratchet teeth 6311-2 and self-locked together (if the second limiting tooth 6321-2 and the B group of ratchet teeth 6311-2 are not engaged and self-locked together, the rotating shaft handle 636 can be operated to switch the state of the locking structure 630), the locking structure 630 does not restrict the counterclockwise rotation of the ratchet wheel 631, in addition, the lifting block 400 slides upward relative to the two limiting plates 300 on both sides of the horizontal first direction, and the pedal 500 moves upward under the driving of the external power. When the pedal 500 is lifted to the target height, stop the external power input, the row of teeth 410 stops moving upward, the rotating shaft 610, the drive gear 620 and the ratchet wheel 631 stop counterclockwise rotation, and after the pedal 500 is adjusted and stabilized, the pedal 500 can be used for personnel to stand and material to be placed; at this time, because the second limiting tooth 6321-2 is engaged with the B group of ratchet teeth 6311-2 and self-locked together, the ratchet wheel 631 is clamped by the brake block 632, and the clockwise rotation of the ratchet wheel 631 is not allowed, and the downward movement of the lifting block 400 and the pedal 500 is locked, ensuring that the personnel (and the material) can reliably and stably stand (and place) on the pedal 500.

[0061] If the above rising process suddenly fails (such as jack failure, etc.), continue to refer to Figure 2 and Figure 5 , the pedal 500 rises, the external power is suddenly interrupted, the lifting block 400 has a "unintentional falling" tendency due to the gravity of its own and the pedal 500, at this time, the lifting block 400 falls to drive the row of teeth 410 to move downward, which forces the drive gear 620 to rotate clockwise through the engagement with the row of teeth 410, and in turn drives the rotating shaft 610 and the ratchet wheel 631 to rotate synchronously clockwise; at the moment when the ratchet wheel 631 rotates clockwise, the vertical surface of the B group of ratchet teeth 6311-2 and the vertical surface of the second limiting tooth 6321-1 rigidly resist and cannot slide apart due to the one-way design of the ratchet teeth 6311; the B group of ratchet teeth 6311-2 of the ratchet wheel 631 is clamped by the second limiting tooth 6321-2 of the brake block 632 and cannot continue to rotate, thereby limiting the further rotation of the ratchet wheel 631, the rotating shaft 610 and the drive gear 620, and the drive gear 620 stops rotating, the row of teeth 410 stops moving, and the falling of the lifting block 400 is prevented, achieving instant anti-falling locking.

[0062] When the height of the pedal 500 needs to be lowered during construction, first, refer to, 3 and Figure 5, the rotating shaft 636 of the locking mechanism 630 is rotated to drive the brake block 632 to start counterclockwise rotation, and the second limiting teeth 6321-2 and the teeth of the B group of ratchet teeth 6311-2 that are in engagement and self-locking start to gradually separate until completely separated, and the first limiting teeth 6321-1 start to gradually engage and self-lock with the A group of limiting teeth 6321 (see Figure 4 , the rotating shaft 636 of the locking mechanism 630 is rotated to drive the brake block 632 to start counterclockwise rotation, and the second limiting teeth 6321-2 and the teeth of the B group of ratchet teeth 6311-2 that are in engagement and self-locking start to gradually separate until completely separated, and the first limiting teeth 6321-1 start to gradually engage and self-lock with the A group of limiting teeth 6321 (see

[0063] The anti-falling mechanism 600 of the scaffold support in the embodiment includes a rotating shaft 610, a driving gear 620, and two locking structures 630, the two locking structures 630 correspond to the two limiting blocks 300 respectively, and are connected with the end of the rotating shaft 610, forming a "double-path locking", and the safety redundancy is improved. The locking structure 630 includes a ratchet wheel 631, a brake block 632, and a rotating shaft handle 636, the ratchet wheel 631 is provided with two groups of ratchet teeth 6311 with opposite one-way locking directions on the outer periphery, and is matched with two groups of corresponding limiting teeth 6321 on the brake block 632, so that the meshing state can be switched according to the requirement; in normal use or power failure, the B group of ratchet teeth 6311-2 is meshed with the second limiting tooth 6321-2, and the two vertical surfaces are rigidly contacted, which can instantly lock the ratchet wheel, cut off the power transmission chain of "the pedal 500 falls → the gear row 410 moves → the driving gear 620 rotates → the rotating shaft 610 rotates", avoid the problem of "friction wear failure" of the existing friction brake, realize "sudden falling and locking", and the structure guarantees the locking rigidity from the mechanical level, and the anti-falling effect is better. In addition, the rotating shaft handle 636 can drive the brake block 632 to rotate, realize the switching of the meshing and separation of the two groups of limiting teeth 6321 and the ratchet teeth 6311, the operation process is simple and labor-saving, compared with the complicated operation of the existing mechanical bolt "manual searching of the card slot and repeated plugging and unplugging", the steps are greatly simplified, the labor intensity of the construction personnel is reduced, and it is especially suitable for the scene of frequently switching height such as external wall decoration.

[0064] Moreover, in the embodiment, the lifting block 400 is slidably connected with the two limiting blocks 300 on the two sides of the horizontal first direction, so as to provide stable guidance for the lifting block and avoid horizontal deviation during lifting; at the same time, the gear row 410 on the side of the lifting block 400 away from the pedal 500 is meshed with the driving gear 620, so as to ensure the transmission continuity of "the pedal 500 lifts and falls → the gear row 410 moves → the driving gear 620 rotates → the rotating shaft 610 rotates", and cooperate with the meshing state of the ratchet teeth 6311 and the limiting teeth 6321, so as to realize "unobstructed lifting / falling, automatic locking when stopping", and solve the low efficiency problem of the existing scheme "adjusting and locking need to be operated step by step".

[0065] In addition, in the embodiment, the ratchet wheel 631, the ratchet teeth 6311, and the limiting teeth 6321 of the anti-falling mechanism are all rigid members, and the locking is realized by "vertical surface contact" instead of relying on friction contact, so as to avoid the problem of "wear of the brake member and the brake wheel due to continuous friction" of the existing friction brake, even if long-term dynamic load (such as personnel walking and material transfer) is borne, the tooth surface only bears intermittent impact, and there is no "clearance increase and locking failure" caused by continuous wear, the service life is prolonged, and the cost demand of long-term reuse of building construction is met.

[0066] Referring to Figures 3 to 5In some embodiments, each locking structure 630 further comprises a locking ball 635 and a brake spring 634, the brake block 632 is provided with two circular grooves 6322, the locking ball 635 is embedded in one of the two circular grooves 6322, and the first end of the brake spring 634 is fixedly connected with the corresponding limiting block 300, and the second end of the brake spring 634 is fixedly connected with the locking ball 635.

[0067] In this embodiment, after the locking structure 630 is additionally provided with the brake spring 634 and the locking ball 635, the meshing stability of the limiting teeth 6321 and the ratchet teeth 6311 is strengthened through the synergistic effect of elastic pre-tightening and positioning of the circular groove 6322. On the one hand, the first end of the brake spring 634 is fixed to the limiting block 300, and the second end is connected with the locking ball 635. In the natural state, the pre-tightening force towards the brake block 632 is always applied to the locking ball 635. The force is transmitted to the brake block 632 through the locking ball 635, so that the limiting teeth 6321 on the brake block always maintain the tendency to be in close contact with the ratchet teeth 6311 of the ratchet wheel 631. Even if it encounters construction vibration (such as personnel walking, material carrying shaking) or external force impact (such as tool collision), it can also avoid the gap between the teeth, reduce the risk of pure mechanical meshing easily disengaged due to vibration, and ensure that the two are always reliably meshed. On the other hand, the brake block 632 is provided with two circular grooves 6322, and the locking ball 635 can only be embedded in one of the two circular grooves 6322. When the limiting teeth 6321 and the ratchet teeth 6311 are meshed (such as the B group ratchet teeth 6311-2 and the second limiting teeth 6321-2 are meshed to achieve anti-falling), the locking ball 635 is precisely embedded in the corresponding circular groove 6322 under the pre-tightening force of the brake spring 634. The "curved surface contact of ball and groove" limits the radial displacement of the brake block 632, avoiding the deviation of the limiting teeth 6321 from the meshing position of the ratchet teeth 6311 due to the slight rotation of the brake block 632 caused by external force, further strengthening the stability of "ratchet teeth 6311-limiting teeth 6321 meshing self-locking", especially suitable for the needs of "continuous and stable locking in vibration environment" in high-rise construction.

[0068] When the rotating shaft handle 636 is switched to the locking state (such as from "A group ratchet teeth 6311-1 meshing" to "B group ratchet teeth 6311-2 meshing"), during the process of rotating the brake block 632, the locking ball 635 will slide along the groove wall surface of the circular groove 6322 under the push of the brake spring 634; when the brake block 632 is rotated to the position where the limiting teeth 6321 and the target ratchet teeth 6311 are meshed, the locking ball 635 will be instantaneously embedded in the corresponding circular groove 6322 under the pre-tightening force of the brake spring 634. At this time, the operator can perceive that the switching is in place through the "jerking feeling", and at the same time, the embedding action of the locking ball 635 will drive the brake block 632 to fine-tune, ensuring that the limiting teeth 6321 and the ratchet teeth 6311 are completely aligned and meshed, avoiding the problem of "meshing deviation due to inaccurate force control" when manually rotating the rotating shaft handle 636, and improving the accuracy of state switching.

[0069] And the pre-tightening force of the brake spring 634 can assist the brake block 632 to maintain the target engagement position. When the operator rotates the rotating shaft handle 636, the operator does not need to continuously exert an external force to maintain the posture of the brake block 632. In the construction scene of high-frequency switching of the height (such as multi-layer decoration work of the outer wall), the hand fatigue of the operator can be reduced, and the construction efficiency can be improved. In addition, when the scaffold encounters an overload (such as a material accidentally falling and hitting the pedal 500), the rigid resistance of the ratchet teeth 6311 and the limiting teeth 6321 may face the risk that the instantaneous force on the tooth surface is too large to cause deformation. At this time, the elastic force of the brake spring 634 can exert a continuous pressure on the brake block 632 through the locking ball 635. Even if the ratchet teeth 6311 and the limiting teeth 6321 are slightly deformed, the locking ball 635 can still be kept in the embedded groove state under the action of the brake spring 634, limiting the large displacement of the brake block 632, providing “buffering assistance” for the rigid locking of the ratchet teeth 6311 and the limiting teeth 6321, and avoiding the direct failure of the locking structure caused by single overload. With the increase of the use time, the tooth surface of the ratchet teeth 6311 and the limiting teeth 6321 may be slightly worn due to repeated engagement, resulting in a decrease in the fitting degree between the teeth. The pre-tightening force of the brake spring 634 can slightly move the brake block 632 through the locking ball 635, compensate for the gap caused by the wear of the tooth surface, and make the limiting teeth 6321 still reliably fit with the ratchet teeth 6311, thereby prolonging the effective service life of the locking structure 630. Compared with the existing friction brake solution that needs to frequently replace parts after wear, the maintenance cost and safety hazards are significantly reduced.

[0070] Referring to Figures 1 to 3 In some embodiments, each locking structure 630 further includes an assembly shell 640, the assembly shell 640 is provided with a mounting cavity 641, the ratchet wheel 631, the brake block 632, the locking ball 635 and the brake spring 634 are all mounted in the mounting cavity 641, the rotating shaft 633 extends from the mounting cavity 641 to the outside of the assembly shell 640, and the rotating shaft handle 636 is located outside the assembly shell 640.

[0071] In the embodiment, the assembly shell 640 provides a relatively closed space for the ratchet wheel 631, the brake block 632, the locking ball 635 and the brake spring 634, which can block dust, water vapor and corrosive substances in the construction environment from directly contacting these components, thereby prolonging the service life of the locking structure 630 and ensuring stable and reliable operation of the fall prevention mechanism 600 in a long-term complex construction environment. In addition, as an external protection structure, the assembly shell 640 can withstand a certain degree of accidental impact, protect the internal components from being directly impacted and damaged, reduce the risk of fall prevention failure caused by accidental damage of the components, and further improve the safety of the scaffold support.

[0072] And, the ratchet wheel 631, the brake block 632, the locking ball 635 and the brake spring 634 are integrally installed in the mounting cavity 641 of the assembly shell 640, forming a relatively independent modular assembly, facilitating pre-assembly debugging of the entire locking structure 630 assembly before installation, ensuring that the installation positions of the components in the assembly shell 640 are accurate and the cooperation is smooth, and improving the installation quality and efficiency. When the locking structure 630 needs to be maintained and repaired, since the components are concentrated in the assembly shell 640, the assembly shell 640 can be disassembled as a whole from the limiting block 300 for inspection, repair or replacement of components, which is more convenient to operate and saves maintenance time and labor cost.

[0073] Figure 6 Fig. 4 shows a schematic diagram of the internal structure of the pedal in the embodiment of the application.

[0074] Referring to Figure 6 In some embodiments, the pedal 500 includes a main plate 510, which is provided with a groove 511, and the groove 511 is sequentially provided with a pressing plate 520, a steel mesh 530 and a buffer pad layer 540 from top to bottom.

[0075] In the embodiment, the groove 511 of the main plate 510 provides a fixed installation space for the pressing plate 520, the steel mesh 530 and the buffer pad layer 540, so that the components are arranged in layers and in order, and the compactness of the pedal 500 structure is improved. In specific implementation, the upper surface of the pressing plate 520 can be provided with anti-slip lines to improve the friction of the surface. The steel mesh 530 is located between the pressing plate 520 and the buffer pad layer 540, which can increase the friction at the bottom of the pressing plate 520, prevent the pressing plate 520 from sliding when subjected to force, and disperse local load to avoid damage to the buffer pad layer 540 due to excessive force on a single point, thereby prolonging the service life of the pedal 500 as a whole. The buffer pad layer 540 can effectively absorb the impact force of personnel stepping and material stacking, reduce vibration, avoid foot fatigue caused by long-time operation, reduce the risk of collision damage when materials are placed, and improve the safety of the pedal 500.

[0076] Referring to Figure 1 In some embodiments, the mounting plate 200 is connected with the support plate 100 through a mounting assembly 700, and the mounting assembly 700 is configured as a bolt and nut assembly.

[0077] In the embodiment, the mounting assembly can be used to adjust the fixed position of the mounting plate 200 on the support plate 100, thereby facilitating the adjustment operation of the pedal 500 with a large height span. The bolt and nut assembly is simple to connect and disassemble, easy to obtain, and does not require special complex tools, thereby reducing costs.

[0078] Figure 7 Fig. 6 shows a schematic diagram of the assembly structure of the support plate and the mounting plate in the embodiment of the application, Figure 8A structural schematic diagram of an installation assembly in the embodiment of the application is shown.

[0079] Referring to Figure 1 and in combination with Figure 7 and Figure 8 In some embodiments, the installation plate 200 is connected with the support plate 100 through the installation assembly 700, the installation assembly 700 includes a mounting seat 710, a sliding column 720, a clamping column 730 and an assembly spring 740, the clamping column 730 is fixedly connected to the outer periphery of the sliding column 720; the support plate 100 is provided with a connecting hole 110 and an embedded slot 120, the embedded slot 120 is in communication with the connecting hole 110, the installation plate 200 is located in the connecting hole 110, and the mounting seat 710 is fixedly installed in the embedded slot 120;

[0080] The mounting seat 710 is provided with a mounting slot 711, a first clamping slot 712-1 and a second clamping slot 712-2 are formed in the side wall of the mounting slot 711, and the second clamping slot 712-2 is located between the first clamping slot 712-1 and the connecting hole 110 along a horizontal first direction;

[0081] The sliding column 720 is arranged in the mounting slot 711, one end of the assembly spring 740 is connected with a first end of the sliding column 720, and the other end of the assembly spring 740 is connected with the bottom of the mounting slot 711;

[0082] The clamping column 730 is arranged in the first clamping slot 712-1 or the second clamping slot 712-2, when the clamping column 730 is arranged in the second clamping slot 712-2, a second end of the sliding column 720 abuts against the side surface of the installation plate 200; when the clamping column 730 is arranged in the first clamping slot 712-1, the second end of the sliding column 720 has a certain gap with the installation plate 200.

[0083] In specific implementation, the number of the installation assembly 700 is generally multiple, and the multiple installation assemblies 700 are arranged around the connecting hole 110.

[0084] In the embodiment, the installation assembly 700 is used to realize the detachable connection between the installation plate 200 and the support plate 100, so that the adjustment operation of the pedal 500 with a large height span is facilitated.

[0085] The dismounting process of the mounting plate 200 and the support plate 100 is as follows: the clamping column 730 is operated to turn out of the second clamping groove 712-2, the assembly spring 740 is forced to twist, the clamping column 730 is continuously operated and forced to move the sliding column 720 along the horizontal first direction to the side away from the mounting plate 200, the assembly spring 740 is compressed to further deform, the end of the sliding column 720 is separated from the side of the mounting plate 200 to be separated from the side of the mounting plate 200, the clamping column 730 is continuously moved until it can be arranged in the first clamping groove 712-1, the clamping column 730 is rotated to be rotated in the first clamping groove 712-1, the end of the sliding column 720 is separated from the side of the mounting plate 200, and the mounting plate 200 can be dismounted from the connecting hole 110 of the support plate 100.

[0086] The mounting process of the mounting plate 200 and the support plate 100 is as follows: the clamping column 730 is operated to turn out of the first clamping groove 712-1, the clamping column 730 and the sliding column 720 are moved along the first direction to the side close to the connecting hole 110 under the spring force of the compressed assembly spring 740, the compression state of the assembly spring 740 is partially released, the end of the sliding column 720 is separated from the mounting plate 200 to abut against the side of the mounting plate 200; the clamping column 730 is operated and rotated to be rotated in the second clamping groove 712-2, the end of the sliding column 720 is abutted against the side of the mounting plate 200, and the mounting plate 200 and the support plate 100 are mounted.

[0087] In the embodiment, when the mounting plate 200 and the support plate 100 are mounted, the mounting plate 200 is only embedded in the connecting hole 110 of the support plate 100, the sliding column 720 slides along the mounting groove 711 under the elastic force of the assembly spring 740, and drives the clamping column 730 to be clamped in the first clamping groove 712-1 or the second clamping groove 712-2. When dismounting, the clamping column 730 is operated to switch between the first clamping groove 712-1 and the second clamping groove 712-2, so that the mounting plate 200 and the support plate 100 can be mounted or dismounted, the mounting and dismounting time is greatly shortened, the operation process is simplified, and the operation strength of the construction personnel is reduced.

[0088] Figure 9 Fig. 4 is a schematic structural diagram of the limiting block and the lifting block in the embodiment of the application.

[0089] Referring to Figure 2 and Figure 9 In some embodiments, the lifting block 400 is provided with sliding blocks 420 on both sides;

[0090] The limiting block 300 is provided with a sliding groove 310 on both sides in the horizontal second direction, the two side walls of the sliding groove 310 are provided with a plurality of assembly grooves 320, one end of the reset spring 330 is connected to the groove bottom of the assembly groove 320, the other end of the reset spring 330 is connected to one side of the stabilizing block 340; the sliding block 420 is penetrated in the sliding groove 310, the other side of the stabilizing block 340 abuts against the sliding block 420.

[0091] In the embodiment, the sliding block 420 of the lifting block 400 is penetrated in the sliding groove 310 of the limiting block 300, the sliding groove 310 provides accurate guidance for the sliding block 420, at the same time, the reset spring 330 pushes the stabilizing block 340 to always abut against the sliding block 420, eliminates the assembly gap between the sliding block 420 and the sliding groove 310, reduces the shaking and jamming in the lifting process, and ensures the stable movement of the pedal 500 (and personnel and materials).

[0092] In addition, when the scaffold is impacted by accident (such as material collision), the sliding block 420 tends to produce lateral displacement, the stabilizing block 340 can buffer the impact degree under the elastic force of the brake spring 634, offset part of the lateral force, and avoid the damage caused by the direct impact of the sliding block 420 on the side wall of the sliding groove 310; at the same time, the structure in close abutment can maintain the relative position of the lifting block 400 and the limiting block 300, prevent the support system from loosening due to impact, and improve the overall stability.

[0093] Referring to Figure 9 In some embodiments, the cross section of the sliding block 420 and the sliding groove 310 is a matching trapezoid. The sliding block 420 with trapezoidal cross section and the sliding groove 310 are "wedge-shaped matched", which can more accurately limit the lateral displacement of the sliding block 420 in the sliding groove 310, further reduce the left and right shaking of the lifting block 400 during lifting, ensure the stable movement of the pedal 500 along the vertical direction, and improve the operation safety. The "wide at the top and narrow at the bottom" (or vice versa) structure of the trapezoidal cross section makes the sliding block 420 form "meshing self-locking guidance" in the sliding groove 310, which can effectively prevent the sliding block 420 from being pulled out of the sliding groove 310 even if it is accidentally impacted or used for a long time; in combination with the stabilizing block 340 and the brake spring 634 of the right 6, the connection stability of the lifting block 400 and the limiting block 300 is further strengthened, and the risk of structural failure is reduced.

[0094] Referring to Figure 2In some embodiments, the number of drive gears 620 is multiple, and the multiple drive gears 620 are arranged along the rotating shaft 610 at intervals, and each drive gear 620 is engaged with the row teeth 410. In this way, the load of personnel and materials borne by the lifting block 400 can be evenly distributed to each gear, avoiding concentrated force on a single gear, which may cause tooth surface wear or breakage, greatly improving the upper limit of the overall load bearing of the support, and adapting to heavier load construction scenes. In addition, the multiple gears are engaged with the row teeth 410 at the same time, which can reduce the "tooth gap shaking" that may occur when a single gear is engaged, making the force on the lifting block 400 more balanced, and the lifting block 400 is not easy to jam or deviate during lifting, further ensuring the smooth movement of the pedal 500 (and the personnel and materials on it), and improving the safety of the operation. If one of the drive gears 620 fails due to an accident (such as tooth surface wear, jamming), the remaining gears can still normally engage with the row teeth 410, maintaining the lifting function or the anti-falling locking function (through the gear linkage ratchet 631), avoiding the entire support being unusable due to a single gear failure, and improving the structural reliability and fault tolerance.

[0095] Referring to Figure 6 In some embodiments, the buffer pad layer 540 includes a sponge pad and a plurality of buffer springs 550 arranged along the length direction of the stepping plate 520, the buffer springs 550 are arranged in the sponge pad, and the two ends of the buffer springs 550 are fixedly connected to the opposite side walls of the groove 511.

[0096] In this embodiment, the sponge pad has excellent elasticity and deformation ability, can more fully absorb the impact force of personnel stepping and the collision force of material placement, reduce the vibration transmitted to the feet or the materials, relieve the fatigue of long-time operation, and reduce the risk of material damage due to collision. Moreover, it is economical and reduces the overall use cost of the support. The sponge pad combined with the buffer springs 550 arranged along the length direction forms a double-buffering structure of "elastic deformation + spring expansion", which can more efficiently absorb the impact force of personnel stepping and material stacking, especially for larger loads (such as heavy tools), can greatly reduce the vibration transmission, further reduce the fatigue of the feet and the risk of material damage due to collision. Moreover, the plurality of buffer springs 550 are evenly arranged along the length of the stepping plate 520, which can quickly disperse the local concentrated load (such as personnel standing on one foot, material stacking locally) to the entire stepping plate 500, avoid deformation of the stepping plate 500 due to uneven force, and further ensure the stability and safety of the stepping plate 500.

[0097] Although some specific embodiments of the present application have been described in detail by examples, those skilled in the art should understand that the above examples are only for illustration, not for limiting the scope of the present application. Those skilled in the art should understand that the above embodiments can be modified without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.

Claims

1. A scaffold support, characterised in that, The utility model relates to a kind of anti-falling mechanism and a kind of lifting device, including: Support plate is arranged in vertical state, the support plate is fixed relative to horizontal plane; Mounting plate, the plate surface of which is parallel to the support plate, is detachably fixedly connected with the support plate; Two limiting blocks are oppositely arranged along horizontal first direction, and two limiting blocks are fixedly connected with the mounting plate on the same side in horizontal second direction, which is perpendicular to horizontal first direction; Lifting block is located between two limiting blocks, and the lifting block is slidably connected with two limiting blocks on both sides of horizontal first direction respectively; Pedal extends along horizontal second direction, and one end of the pedal is fixedly connected with the lifting block; And Anti-falling mechanism includes rotating shaft, drive gear and two locking structures, both ends of the rotating shaft are rotatably connected with two limiting blocks respectively, the drive gear is fixedly installed on the rotating shaft and located between two limiting blocks, each locking structure corresponds to one limiting block, and the locking structure is located on the side of the corresponding limiting block away from another limiting block;Each locking structure includes ratchet wheel, brake block and rotating shaft handle, the rotating shaft handle is connected with the brake block, the side of the lifting block away from the pedal is provided with rack, the drive gear is engaged with the rack, the ratchet wheel is installed on the end of the rotating shaft, the brake block is rotatably connected with the corresponding limiting block, the ratchet wheel is provided with two groups of one-way ratchet teeth, and the one-way locking directions of two groups of ratchet teeth are opposite, the brake block is provided with two groups of limiting teeth, and two groups of limiting teeth are used for being engaged with two groups of ratchet teeth respectively to lock to limit the forward or reverse rotation of the ratchet wheel.

2. The scaffold support of claim 1, wherein, Each locking structure further includes brake spring and locking ball, the brake block is provided with two circular grooves, the locking ball is embedded in one of two circular grooves, the first end of the brake spring is fixedly connected with the corresponding limiting block, and the second end of the brake spring is fixedly connected with the locking ball.

3. The scaffold tower of claim 2, wherein Each locking structure further includes assembly shell, the assembly shell is provided with mounting cavity, the ratchet wheel, the brake block, the locking ball and the brake spring are all installed in the mounting cavity, the rotating shaft extends from the mounting cavity to the outside of the assembly shell body, and the rotating shaft handle is located on the outside of the assembly shell.

4. The scaffold support of claim 1, wherein The pedal includes main body plate, the main body plate is provided with recess, and the recess is sequentially provided with stepping plate, steel wire mesh and buffer pad layer from top to bottom.

5. The scaffold support of claim 1 wherein, The mounting plate is connected with the support plate through mounting assembly, and the mounting assembly is configured as bolt and nut assembly.

6. The scaffold support of claim 1, wherein, The mounting plate is connected with the support plate through mounting assembly, and the mounting assembly includes mounting seat, sliding column, clamping column and assembly spring, the clamping column is fixedly connected with the outer periphery of the sliding column;The support plate is provided with connecting hole and embedding slot, the embedding slot is communicated with the connecting hole, the mounting plate is located in the connecting hole, and the mounting seat is fixedly installed in the embedding slot; The mounting seat is provided with mounting slot, the sidewall of the mounting slot is provided with first clamping groove and second clamping groove, and along horizontal first direction, the second clamping groove is located between the first clamping groove and the connecting hole; The sliding column is arranged in the mounting groove, one end of the assembly spring is connected with the first end of the sliding column, and the other end of the assembly spring is connected with the groove bottom of the mounting groove. The clamping column is arranged in the first clamping groove or the second clamping groove, the second end of the sliding column abuts against the side surface of the mounting plate when the clamping column is arranged in the second clamping groove, and the second end of the sliding column has a gap with the mounting plate when the clamping column is arranged in the first clamping groove.

7. The scaffold support of claim 1 wherein, Both sides of the lifting block are provided with sliding blocks. Both sides of the limiting block in the horizontal second direction are provided with sliding grooves, both side walls of the sliding grooves are provided with a plurality of assembly grooves, one end of a reset spring is connected with the groove bottom of the assembly groove, the other end of the reset spring is connected with one side of a stabilizing block, the sliding block is arranged in the sliding groove, and the other side of the stabilizing block abuts against the sliding block.

8. The scaffold tower of claim 7, wherein The sliding block and the sliding groove are adapted trapezoidal in cross section.

9. The scaffold support of claim 1 wherein, The number of the driving gears is multiple, and the multiple driving gears are arranged at intervals along the rotating shaft, and each driving gear is engaged with the row of teeth.

10. The scaffold support of claim 1 wherein, The buffer pad layer further comprises a sponge pad and a plurality of buffer springs arranged along the length direction of the treading plate, the buffer springs are arranged in the sponge pad, and both ends of the buffer springs are fixedly connected to the opposite side walls of the groove.

Images