Telescopic scaffold

Abstract

The utility model discloses a telescopic scaffold which comprises a supporting device, a telescopic supporting device and a supporting adjusting device. The telescopic supporting device comprises an extending pedal and a pedal storage bin. Storage grooves are formed in the two ends of the pedal storage bin, one ends of the two extending pedals are arranged in the storage grooves in a sliding mode respectively, and the other ends of the extending pedals are connected with the supporting device. The supporting adjusting device comprises telescopic rods, the upper ends of the telescopic rods are hinged to the pedal storage bin, the lower ends of the telescopic rods are movably connected with the supporting device, the two telescopic rods are symmetrically arranged along the center of the pedal storage bin, and the telescopic rods are used for transmitting loads of the pedal storage bin to the supporting device. The telescopic scaffold has the advantages of being adjustable in length, high in stability and bearing capacity, high in space utilization rate, high in adaptability, simple in structure, easy to operate and the like. Due to the advantages, the scaffold has wide application prospects in the fields of building construction, maintenance, decoration and the like, the requirements of different construction scenes can be met, and a safer and more efficient working platform is provided for constructors.

Description

Technical Field

[0001] This utility model relates to the field of scaffolding technology, specifically to a retractable scaffolding. Background Technology

[0002] Scaffolding is widely used in various construction fields such as building construction, road and bridge construction, and shipbuilding construction. It is a type of support erected on the construction site to facilitate workers' operations and solve vertical and horizontal transportation. At present, scaffolding is mainly classified in the following three ways: (1) According to the location of erection: it can be divided into external scaffolding and internal scaffolding, etc.; (2) According to the nature of materials: it can be divided into wooden scaffolding, bamboo scaffolding, steel pipe scaffolding, etc.; (3) According to the structural form: it can be divided into pole-type scaffolding, bridge-type scaffolding, portal scaffolding, suspended scaffolding, hanging scaffolding, cantilever scaffolding, climbing scaffolding, etc. According to the above classification criteria, it can be seen that the classification of scaffolding is also diverse, but basically, it is designed differently according to different construction application scenarios.

[0003] Currently, when assembling the magnesium alloy hydrogen cylinder frame, the factory faces challenges due to the frame's dimensions of 2400mm (length) * 1020.5mm (width) * 2943mm (height), resulting in a total height of nearly 3m. Therefore, it is necessary to utilize external resources to install and assemble components at a height of 2m to 3m, addressing the issue of working at such heights. This can be achieved by setting up ladders, stools, and various available supports on-site. However, temporary scaffolding platforms can lead to safety hazards due to their poor stability (such as collapse or workers falling due to loss of footing). Since the magnesium alloy hydrogen cylinder frame has four sides, the process of temporarily assembling it on each side is tedious, wasteful of manpower and time, and inefficient. Therefore, scaffolding can be used in this scenario to solve the problem of installing parts at heights. However, scaffolding generally occupies a large area, putting significant pressure on workshop space. Therefore, scaffolding needs to be telescopic. However, telescopic scaffolding often has thinner telescopic sections due to this feature, resulting in poor stability. It is prone to bending or breaking due to the weight of workers and the increased pressure load from various processing tools. Therefore, based on these problems, existing scaffolding needs to be improved. Utility Model Content

[0004] In view of the problems existing in the prior art, this utility model provides a telescopic scaffold that solves the problems of large footprint, poor stability, complex manual assembly of parts, and low efficiency in installing parts at heights.

[0005] This utility model is achieved through the following technical solution:

[0006] A telescopic scaffold includes a support device, a telescopic support device, and a support adjustment device;

[0007] The telescopic support device includes an extendable pedal and a foot pedal storage compartment; the foot pedal storage compartment has storage slots at both ends, one end of each of the two extendable pedals is slidably disposed in the storage slot, and the other end of the extendable pedal is connected to the support device.

[0008] The support adjustment device includes a telescopic rod, the upper end of which is hinged to the foot pedal storage compartment, and the lower end of which is movably connected to the support device. The two telescopic rods are symmetrically arranged along the center of the foot pedal storage compartment. The telescopic rods are used to transmit the load of the foot pedal storage compartment to the support device.

[0009] Preferably, the support device includes two end frames, which are located at both ends of the telescopic support device, and the end of the extended pedal is connected to the end frame.

[0010] Preferably, a plurality of the telescopic support devices are arranged at intervals from top to bottom, and the support adjustment device is located at the bottom of the uppermost telescopic support device.

[0011] Preferably, the extendable pedal and the foot pedal storage compartment are connected by a sliding structure, which includes a slide groove and a limiting slide plate;

[0012] The chute is located on the side wall of the foot pedal storage compartment and communicates with the storage slot. The limiting slide is located at the end of the extended pedal, and both ends of the limiting slide extend into the chute.

[0013] Preferably, the end of the limiting slide is provided with a positioning device, which includes a screw and a threaded ring;

[0014] The screw is located at the end of the limiting slide plate and extends out of the slide groove. The threaded ring is connected to the screw and is located outside the slide groove.

[0015] Preferably, a barrier block is provided in the middle of the storage slot.

[0016] Preferably, the telescopic rod includes an outer rod and an inner rod coaxially sleeved together, the outer rod and the inner rod are connected by threads, the end of the outer rod is rotatably connected to a hinge seat, the hinge seat is fixedly connected to the bottom surface of the foot pedal storage compartment, and the end of the inner rod is connected to a support device through the hinge seat.

[0017] Preferably, the lower end of the telescopic rod is connected to a hinge seat, and the hinge seat is inserted into the support device.

[0018] Preferably, the lower end of the support device is provided with rollers.

[0019] Preferably, the extended pedal is provided with a weight-reducing groove.

[0020] Compared with the prior art, the present invention has the following beneficial technical effects:

[0021] This utility model provides a telescopic scaffold. The extendable pedal in the telescopic support device slides within the storage slot of the foot storage compartment. By adjusting the relative position between the extendable pedal and the foot storage compartment, the length of the scaffold can be adjusted. This design allows the scaffold to adapt to construction areas of varying lengths, improving its flexibility and applicability. Furthermore, the telescopic rods in the support adjustment device are symmetrically arranged along the center of the foot storage compartment, forming a stable support structure. This symmetrical design helps to distribute the load and enhance the stability of the scaffold. The telescopic rods, acting as a bridge connecting the foot storage compartment and the support device, effectively transfer the load on the foot storage compartment to the support device, ensuring the scaffold's load-bearing capacity and making it safer for construction workers. The length of the scaffold can be easily adjusted by changing the relative position between the extendable pedal and the foot storage compartment, allowing it to adapt to construction areas of different sizes and shapes. This adaptability enables the scaffold to perform excellently in various construction scenarios, meeting the needs of both narrow alleyways and spacious construction sites. The scaffolding's structural design is simple and clear. The sliding adjustment of the extended footboards and the hinged connection of the telescopic poles make the operation process simple and quick. This design reduces the skill requirements for construction workers, improves construction efficiency, and also facilitates the maintenance and upkeep of the scaffolding. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the three-dimensional structure of the retractable scaffold of this utility model;

[0024] Figure 2 This is a cross-sectional view of the internal structure of the foot-operated storage compartment of this utility model;

[0025] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0026] Figure 4 This is a three-dimensional structural diagram of the lifting plate and anti-tilting insert of this utility model;

[0027] Figure 5 This is an exploded structural diagram of the reinforcement and adjustment mechanism of this utility model.

[0028] In the diagram: 1. Support device; 11. Support column; 12. Self-locking caster wheel; 13. Crossbeam; 14. Connecting crossbeam; 15. Insertion slot; 2. Telescopic support device; 21. Extendable pedal; 22. Weight reduction slot; 23. Foot pedal storage compartment; 24. Threaded ring; 25. Threaded slide rod; 26. Side slot; 27. Limiting slide plate; 28. Internal slot; 3. Support adjustment device; 31. Hanging slot plate; 32. First positioning column; 33. First connecting block; 34. First clamping plate; 35. First threaded rod; 36. First turntable; 37. Third threaded rod; 38. Hand grip ring; 39. Threaded drum; 310. Second connecting block; 311. Second positioning column; 312. Second clamping plate; 313. Second threaded rod; 314. Second turntable; 315. Connecting slot; 316. Insertion block connecting plate; 317. Insertion block. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0031] A telescopic scaffold includes a support device 1, a telescopic support device 2, and a support adjustment device 3;

[0032] The telescopic support device 2 includes an extendable pedal 21 and a foot pedal storage compartment 23; the foot pedal storage compartment 23 has storage slots at both ends, and the two extendable pedals 21 are slidably disposed in the storage slots; the support device 1 includes two end frames, which are respectively disposed at both ends of the two telescopic pedals, and the end frames are connected to the ends of the telescopic pedals.

[0033] The support adjustment device 3 includes a telescopic rod, the upper end of which is hinged to the foot pedal storage compartment 23, and the lower end of which is connected to the end frame. The two telescopic rods are symmetrically arranged along the center of the foot pedal storage compartment 23. The telescopic rods are used to transmit the load of the foot pedal storage compartment to the support device.

[0034] Furthermore, multiple telescopic support devices 2 are provided between the two end frames, and the multiple telescopic support devices are spaced apart from top to bottom.

[0035] By setting multiple telescopic support devices between the two end frames and spacing them from top to bottom, workers can climb to a higher height, which can expand the application scenarios of scaffolding.

[0036] Furthermore, the extended pedal 21 and the foot pedal storage compartment 23 are connected by a sliding structure, which includes a sliding groove and a limiting slide plate. The sliding groove is opened on the side wall of the foot pedal storage compartment 23 and communicates with the storage groove. The limiting slide plate is set at the end of the extended pedal, and both ends of the limiting slide plate extend into the sliding groove.

[0037] The extended pedal 21 and the foot storage compartment are slidably connected by a sliding groove and a limiting slide plate. The sliding groove limits the sliding direction of the extended pedal, and the sliding connection improves the smoothness of scaffolding extension and retraction.

[0038] Furthermore, the sliding structure is provided with a positioning device for positioning the extended pedal 21 and the foot pedal storage compartment. The positioning device includes a screw and a threaded ring 24. The screw is located at the end of the limiting slide plate and extends out of the slide groove. The threaded ring is connected to the screw and is located outside the slide groove.

[0039] By rotating the threaded ring to separate it from or abut against the side wall of the foot pedal storage compartment, the friction generated between the threaded ring and the side wall of the foot pedal storage compartment is used to position the extended pedal 21 and the foot pedal storage compartment 23, ensuring the stability of the scaffold and improving the safety of the workers.

[0040] Furthermore, the telescopic rod includes an outer rod and an inner rod coaxially sleeved together. The outer rod and the inner rod are connected by threads. The end of the outer rod is rotatably connected to a hinge seat. The hinge seat is fixedly connected to the bottom surface of the foot pedal storage compartment. The end of the inner rod is detachably connected to a support device through the hinge seat. The telescopic rod, the telescopic support device, and the end frame form a triangular structure.

[0041] Telescopic rods are installed at both ends of the uppermost telescopic support device. Since the uppermost telescopic support device is the main load-bearing area, to prevent the uppermost telescopic support device from bending and deforming, inclined telescopic rods are installed at the bottom to unload the load onto the end frame, thereby improving the strength of the uppermost telescopic support device. Secondly, the telescopic rods are detachably connected to the end frame, which facilitates the adjustment and maintenance of the length of the telescopic rods.

[0042] Example 1

[0043] See Figure 1-5 A retractable scaffold includes a support device 1, a telescopic support device 2, and a support adjustment device 3;

[0044] The support device 1 includes an end frame, self-locking casters 12, a support beam, and a block slot 15.

[0045] Two end frames are arranged in parallel and spaced apart. Each end frame includes two vertically spaced support columns 11. Three horizontal beams 13 are fixedly installed between the two support columns and are spaced apart from top to bottom. Each support column 11 is equipped with a self-locking universal caster wheel 12 on its bottom surface. The two end frames are used to support the entire scaffolding device. During use, the self-locking universal caster wheel 12 can move or stop the device in the working position.

[0046] Three telescopic support devices 2 are provided between the two end frames. The two ends of the telescopic support devices 2 are respectively connected to the crossbeam 13 of the end frame. The three telescopic support devices 2 are arranged at intervals from top to bottom, and the uppermost telescopic support device 2 is located at the upper end of the end frame. Support adjustment devices 3 are provided on both sides of the bottom of the uppermost telescopic support device 2. A connecting crossbeam 14 is also provided on the end frame. The connecting crossbeam 14 is provided with a block groove 15. The block groove 15 is used to detachably connect the lower end of the support adjustment device 3.

[0047] The telescopic support device 2 includes an extendable pedal 21, a weight-reducing groove 22, a foot pedal storage compartment 23, a threaded ring 24, a threaded slide bar 25, a side slot 26, a limiting slide plate 27, and an internal slot 28.

[0048] The three foot storage compartments 23 of the three telescopic support devices are arranged from top to bottom. The lower foot storage compartment 23 and the middle foot storage compartment 23 are mainly used by workers to climb to the uppermost foot storage compartment 23.

[0049] The foot pedal storage compartment 23 has an internal groove 28. Two extendable pedals are located at both ends of the foot pedal storage compartment 23. One end of the extendable pedal 21 is connected to the crossbeam, and the other end of the extendable pedal 21 is connected to the limiting slide plate 27. The limiting slide plate 27 is slidably disposed in the internal groove. A blocking block is set in the center of the internal groove 28 to prevent the two limiting slide plates 27 from colliding when stored. Each extendable pedal 21 has a weight reduction groove 22 inside, which is used to reduce the weight of the extendable pedal and at the same time increase the strength of the extendable pedal.

[0050] The foot pedal storage compartment 23 has side slots 26 on both sides, which are arranged along the extension and retraction direction of the extended pedal 21. The threaded slide rod 25 is located at the end of the limiting slide plate 27 and in the side slot 26. The threaded ring 24 is connected to the threaded slide rod 25 and is located outside the side slot 26. By rotating and hand-tightening the threaded ring 24, the threaded ring 24 can be made to abut against the foot pedal storage compartment 23 and the side slot 26 to position the extended pedal 21.

[0051] The support adjustment device 3 includes a hanging groove plate 31, a first positioning post 32, a first connecting block 33, a first clamping plate 34, a first threaded rod 35, a rotating first turntable 36, a third threaded rod 37, a hand grip ring 38, a threaded drum 39, a second connecting block 310, a second positioning post 311, a second clamping plate 312, a second threaded rod 313, a second turntable 314, a connecting groove 315, an insert block connecting plate 316, and an insert block 317.

[0052] The upper surface of the hanging slot plate 31 is fixedly connected to the bottom surface of the foot storage compartment 23. A first positioning post 32 is installed on the inner wall of the hanging slot plate 31. The first positioning post 32 is rotatably connected to the first connecting rotating block 33. A threaded hole is provided on the side wall of the hanging slot plate 31 and is coaxial with the first positioning post 32. A first threaded rod 35 is provided in the threaded hole. A first turntable 36 is fixedly connected to the front end of the first threaded rod 35. A first clamping plate 34 is fixedly connected to the rear end of the first threaded rod 36. The first clamping plate 34 is in contact with the outer surface of the first connecting rotating block 33. It should be noted that by rotating the first turntable 36, the first clamping plate 34 can be moved towards the first connecting rotating block 33, applying a clamping force to the first connecting rotating block 33, so as to generate a large frictional force between the first clamping plate 34 and the first connecting rotating block 33, thereby limiting the first connecting rotating block.

[0053] The other end of the first connecting block 33 is rotatably connected to the end of the threaded drum 39. The internal thread of the threaded drum 39 is connected to one end of the third threaded rod 37. The other end of the third threaded rod 37 is fixedly connected to the second connecting block 310. A hand grip ring 38 is installed on the outer surface of the threaded drum 39. It should be noted that by using the hand grip ring 38, the threaded drum 39 can be rotated, which is convenient for workers to rotate the threaded drum 39. When the device is in operation, by rotating the hand grip ring 38, the third threaded rod 37 can be extended from the inside of the hand grip ring 38, so that the connecting groove 315 can drive the lifting plate 25 to press against the extended pedal 21 and share the load of the extended pedal 21.

[0054] A second positioning post 311 is provided at the lower part of the connecting groove 315. The second connecting rotating block 310 is rotatably connected to the second positioning post 311. A second threaded rod 313 is threadedly connected to the inner wall of the connecting groove 315 and is coaxial with the second positioning post 311. A rotating second turntable 314 is fixedly connected to the front end of the second threaded rod 313, and a second clamping plate 312 is fixedly connected to the rear end of the second threaded rod 313. The back of the second clamping plate 312 is in contact with the second connecting rotating block 310. It should be noted that by rotating the second... The turntable 314 can drive the second threaded rod 313 and the second clamping plate 312 to rotate and move, so that the second clamping plate 312 no longer abuts against the second connecting rotating block 310, and the second connecting rotating block 310 can rotate inside the connecting groove 315. One end of the 315 is connected to the insert connecting plate 316, and the other end of the insert connecting plate 316 is connected to the insert 317. The number of inserts 317 is arranged to match the number of insert grooves 15 on the connecting beam 14, and is used to fix the other end of the reinforcing mechanism 3.

[0055] The following is a detailed description of the usage method of the retractable scaffolding in Example 1, including the following procedures:

[0056] Step 1: Push the scaffolding to the designated position. Workers can fix the self-locking casters 12 to secure the entire scaffolding. Then, open the device and rotate the threaded ring to prevent it from contacting the footrest storage compartment 23. This allows the limiting slide plate 27 to slide inside the built-in groove 210, extending the side extension pedals to their extended positions. By rotating the first turntable 36, the first threaded rod 35 and the first clamping plate 34 can be rotated and moved, thus preventing the first clamping plate 34 from contacting the first connecting rod. When the connecting block 33 contacts the second rotating block 310, rotating the second rotating disk 314 causes the second threaded rod 313 and the second clamping plate 312 to rotate and move, thus preventing the second clamping plate 312 from contacting the second connecting block 310. By holding the hand grip ring 38 and rotating the threaded drum 39, the third threaded rod 37 extends outward from the inside of the threaded drum 39, connecting the crossbeam and the insert block. Rotating the first rotating disk 36 and the second rotating disk 314 again completes the locking of each part, and finally completes the unfolding of the device.

[0057] Step 2: Workers can climb from bottom to top to the top of the storage compartment and install the new energy hydrogen cylinder frame.

[0058] Step 3: When the device is no longer needed, rotating the two threaded rings separately separates them from the side wall of the footrest storage compartment, allowing the limiting slide plate to slide inside the built-in groove. Then, rotating the first turntable rotates and moves the first threaded rod and the first clamping plate, separating the first clamping plate from the first connecting block. Rotating the second turntable rotates and moves the second threaded rod and the second clamping plate, separating the second clamping plate from the second connecting block. By gripping the hand ring and rotating the threaded cylinder, the third threaded rod retracts into the cylinder, simultaneously separating the insert block from its slot. Pushing the support columns on both sides of the device retracts each extended pedal into the footrest storage compartment. Rotating the hand-tightened threaded rod again positions the extended pedals, completing the retraction of the scaffold and minimizing its space occupation.

[0059] Step 4: Open the self-locking casters, push the scaffolding to its designated location in the workshop, and then close the casters.

[0060] The above content is only for illustrating the technical concept of this utility model and should not be construed as limiting the scope of protection of this utility model. Any modifications made to the technical solution based on the technical concept proposed in this utility model shall fall within the scope of protection of the claims of this utility model.

Claims

1. A telescoping scaffold, characterized in that, The support device, the telescopic support device and the support adjusting device are provided. The telescopic support device comprises two extension pedals and a pedal storage bin. The support adjusting device comprises two telescopic rods.

2. A telescoping scaffold according to claim 1, wherein, The support device comprises two end frames.

3. A telescoping scaffold according to claim 1, wherein, The telescopic support devices are arranged in a staggered manner from top to bottom.

4. The telescoping scaffold of claim 1, wherein, The extension pedal and the pedal storage bin are connected by a sliding structure. The sliding structure comprises a sliding groove and a limiting slide plate.

5. A telescoping scaffold according to claim 4, wherein, The limiting slide plate is arranged at the end of the extension pedal. The limiting slide plate comprises a positioning device.

6. A telescoping scaffold according to claim 1, wherein, The positioning device comprises a screw rod and a threaded ring.

7. The telescoping scaffold of claim 1, wherein, The screw rod is arranged at the end of the limiting slide plate and extends out of the sliding groove.

8. The telescoping scaffold of claim 1, wherein, The threaded ring is connected with the screw rod and arranged outside the sliding groove.

9. The telescoping scaffold of claim 1, wherein, The middle part of the storage slot is provided with a blocking block.

10. The telescoping scaffold of claim 1, wherein, The telescopic rod comprises an outer rod and an inner rod. The outer rod and the inner rod are connected by a thread. The end of the outer rod is rotatably connected with a hinge seat. The end of the inner rod is connected with the support device through the hinge seat. The lower end of the telescopic rod is connected with the hinge seat. The lower end of the support device is provided with a roller. The extension pedal is provided with a weight reduction groove.

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