Building construction hoist

Abstract

The utility model relates to the technical field of elevators, and discloses a building construction elevator which comprises a movable base, a shear fork arm and an operation table, the shear fork arm is installed above the movable base, the operation table is fixed to the top of the shear fork arm, insertion frames are fixed to the surfaces of the two sides of the front end of the movable base, and guide rods are vertically connected to the upper portions of the two insertion frames. The two guide rods are the same in length, and sliding sleeves are welded and fixed to the positions, aligned with the guide rods, of the surface of the front end of the operation table and slidably arranged on the outer rings of the guide rods in a sleeving mode. According to the technical scheme, the sliding sleeve is arranged on the side edge of the operation table and can be arranged on the outer ring of the guide rod in a sliding and sleeving mode, the gravity center of the balance weight base is stable due to the dead weight of the balance weight base, and therefore the stability of the guide rod is higher; damage or toppling of the shear fork arms due to lateral force is avoided, and workers can climb down conveniently through the cross rods connected between the guide rods when equipment breaks down, so that potential safety hazards are avoided.

Description

Technical Field

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

[0002] Construction refers to the production activities during the implementation phase of an engineering project. It is the process of building various types of buildings, or the process of turning the lines on the design drawings into physical objects at a designated location. When installing decorative panels or billboards on the exterior surface of low-rise buildings, scissor lifts are usually used to lift and lower workers and materials, so that structural installation or other construction operations can be carried out. A scissor lift mainly consists of a base with casters, a scissor arm driven by a hydraulic cylinder, and an operating platform.

[0003] In actual operation, during the lifting process of the scissor lift, if the scissor lift is subjected to lateral forces, there is a risk of damage to the scissor lift or even tipping over. Furthermore, if the scissor lift malfunctions, workers cannot climb down in time, posing a safety hazard. Therefore, we propose a construction hoist. Utility Model Content

[0004] The purpose of this utility model is to provide a construction hoist, which features a sliding sleeve on the side of the operating platform that can be slidably fitted onto the outer ring of the guide rod. Due to the self-weight of the counterweight base, the center of gravity is stabilized, thus increasing the stability of the guide rod. When the operating platform is raised or lowered, the sliding sleeve slides on the outer ring of the guide rod, providing a stable guiding function and preventing the scissor arm from being damaged or tipped over by lateral forces. The crossbar connecting the guide rods also allows workers to easily climb down in case of equipment failure, avoiding potential safety hazards. This solves the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a construction hoist, comprising a movable base, a scissor arm, and an operating platform. The scissor arm is mounted above the movable base, and the operating platform is fixed to the top of the scissor arm. Insert frames are fixed to both sides of the front end of the movable base, and guide rods are vertically connected above the two insert frames, with the two guide rods having the same length. A sliding sleeve is welded and fixed to the front end surface of the operating platform aligned with the guide rods. The sliding sleeve is slidably fitted onto the outer ring of the guide rods. Horizontal crossbars are horizontally connected to the front ends of the guide rods, and multiple crossbars are equidistant and parallel to each other. The guide rods on both sides are also parallel to each other.

[0006] By adopting the above technical solution, the sliding sleeve slides on the outer ring of the guide rod to achieve a guiding and stabilizing effect on the lifting and lowering of the operating table, avoiding damage or tipping of the scissor arm due to lateral force. In addition, the crossbar between the guide rods also makes it convenient for workers to climb down when the equipment malfunctions.

[0007] Optionally, the bottom of the guide rod is detachably connected to the inside of the insert frame.

[0008] By adopting the above technical solution, the guide rod can be removed and stored when the equipment is not in use.

[0009] Optionally, the guide rod has two through holes on its surface that is inserted into the insert frame, and a locking bolt is provided that passes through the insert frame by screwing. The locking bolt passes through the through holes on the surface of the guide rod to achieve detachable installation of the guide rod.

[0010] Optionally, the crossbar is detachably mounted on the front end of the guide rod.

[0011] By adopting the above technical solution, the crossbar can be removed, making it convenient to climb to the outside of the guide rod by removing the crossbar when the equipment fails and the operating platform cannot be raised or lowered.

[0012] Optionally, both rear ends of the crossbar are provided with insert rods that are inserted into slots on the front end surface of the guide rod, and connecting bolts are provided that pass through the guide rods into the slots and are screwed into the screw holes on the surface of the insert rods to achieve detachable installation of the crossbar.

[0013] Optionally, the side surface of the guide rod is uniformly provided with multiple threaded grooves, the inner diameter of which is equal to the inner diameter of the threaded hole.

[0014] By adopting the above technical solution, after removing the crossbar and taking away the connecting bolt, it can be screwed into the first threaded groove below the sliding sleeve, which can restrict the sliding sleeve from sliding down and prevent the operating table from falling due to scissor arm failure.

[0015] Optionally, the front end surface of the sliding sleeve has an opening, the width of which is greater than the width of the crossbar.

[0016] By adopting the above technical solution, the crossbar can pass through the opening of the sliding sleeve as the operating table rises in height.

[0017] Compared with the prior art, the beneficial effects of the technical solution of this application are as follows:

[0018] 1. The technical solution of this application is to set two detachable guide rods connected and fixed to the side of the movable base, and to set a sliding sleeve on the side of the operating table that can slide and fit on the outer ring of the guide rods. Due to the self-weight of the counterweight base, its center of gravity is stable, thus making the guide rods more stable. When the operating table is raised and lowered, the sliding sleeve slides on the outer ring of the guide rods and has a stable guiding function, avoiding damage or tipping of the scissor arm due to lateral force. The crossbar connecting the guide rods can also facilitate workers to climb down in case of equipment failure, thus avoiding safety hazards.

[0019] 2. The technical solution of this application makes the crossbar detachable. When the equipment cannot be raised or lowered due to malfunction, the crossbar at the corresponding height can be removed, making it convenient to climb to the outside of the guide rod through the removed crossbar and then climb down through other crossbars.

[0020] 3. The technical solution of this application provides a screw groove on the side of the guide rod, which allows the connecting bolt removed from the crossbar to be screwed into the first screw groove below the slide sleeve, thereby limiting the sliding height of the slide sleeve and preventing the operating table from falling due to scissor arm failure. Attached Figure Description

[0021] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0022] Figure 1 This is a schematic diagram of the overall structure of the construction hoist of this utility model;

[0023] Figure 2 The construction hoist for this utility model Figure 1 Detailed structural diagram of point A in the diagram;

[0024] Figure 3 A schematic diagram of the cross-sectional structure of the guide rod and bolt connection of the construction hoist of this utility model;

[0025] Figure 4 This is a schematic diagram of the cross-sectional structure of the connection between the crossbar and the guide rod of the construction hoist of this utility model.

[0026] In the diagram: 1. Movable base; 2. Scissor arm; 3. Operating table; 31. Sliding sleeve; 311. Opening; 4. Insert frame; 41. Locking bolt; 5. Guide rod; 51. Crossbar; 511. Insert rod; 512. Screw hole; 52. Slot; 53. Connecting bolt; 54. Screw groove; 55. Through hole. Detailed Implementation

[0027] Please see Figure 1-4 This utility model provides a technical solution: a construction hoist, including a movable base 1, a scissor arm 2, and an operating platform 3. The scissor arm 2 is installed above the movable base 1, and the operating platform 3 is fixed to the top of the scissor arm 2. The movable base 1 is equipped with wheels at its bottom. The rotation of the wheels can move the hoist as a whole. In use, pads can be placed at both ends of the wheels to prevent them from rolling, or brakes can be set to lock the wheels so that they cannot rotate during use. The scissor arm 2 is also equipped with a hydraulic component for controlling the lifting height of the scissor arm 2. The above structure and control principle are existing known technologies, and therefore will not be further disclosed.

[0028] Unlike existing technologies, the front two sides of the movable base 1 are fixed with insert frames 4. There are two insert frames 4, and each insert frame 4 is vertically connected to a guide rod 5. The two guide rods 5 are of the same length and are inserted into the interior of the insert frame 4. The surface of the guide rod 5 into the insert frame 4 has two through holes 55. A locking bolt 41 is provided and passes through the insert frame 4 by screwing. The locking bolt 41 passes through the through holes 55 on the surface of the guide rod 5 to achieve detachable installation of the guide rod 5. When the device is not in use, the guide rod 5 can be removed and stored. It is only when in use that it is vertically inserted into the insert frame 4 to connect and lock, and keep the two guide rods 5 in a parallel state.

[0029] A sliding sleeve 31 is welded and fixed to the front surface of the operating platform 3, which is aligned with the guide rod 5. The sliding sleeve 31 is slidably fitted onto the outer ring of the guide rod 5. In order to ensure that the device is sufficiently stable when the scissor arm 2 is raised, the counterweight of the movable base 1 in the prior art is relatively large. The counterweight of the movable base 1 in this application is large enough, and the guide rod 5 is also vertically stable when it is vertically fixed. Therefore, when the operating platform 3 is raised or lowered, the sliding sleeve 31 is guided to slide upward on the outer ring of the guide rod 5, which has a stabilizing effect on the raising and lowering of the operating platform 3 and avoids lateral forces from damaging the scissor arm 2 or causing it to tip over.

[0030] A horizontal bar 51 is also horizontally connected at the front end between the guide rods 5. Multiple horizontal bars 51 are equidistant and parallel to each other. The horizontal bars 51 can enhance the vertical stability of the two guide rods 5. When the scissor arm 2 of the operating platform 3 fails to rise or fall, the horizontal bar 51 can be used as a step bar for climbing down, making it easier for workers to climb down and reducing safety hazards. The front surface of the sliding sleeve 31 has an opening 311. The width of the opening 311 is greater than the width of the horizontal bar 51. When the sliding sleeve 31 rises with the operating platform 3, the horizontal bar 51 can pass through the opening 311.

[0031] Because of the presence of the crossbar 51, it is inconvenient for workers to climb to the front end of the guide bar 5 and descend via other crossbars 51. To solve this problem, insert rods 511 are provided at both ends of the crossbar 51. The insert rods 511 are inserted into the slots 52 opened on the front surface of the guide bar 5. A connecting bolt 53 is also provided, which passes through the guide bar 5 into the slot 52 and is screwed into the screw hole 512 on the surface of the insert rod 511. This allows for the detachable installation of the crossbar 51. When the scissor arm 2 malfunctions and cannot be raised or lowered smoothly, workers can use tools to remove the crossbar 51 at the height of the operating platform 3, making it convenient to climb to the front end of the guide bar 5 and descend via that point.

[0032] The guide rod 5 is also provided with multiple threaded grooves 54 evenly distributed on its side surface. The inner diameter of the threaded groove 54 is equal to the inner diameter of the threaded hole 512. When the scissor arm 2 malfunctions and cannot rise or fall smoothly, and one of the crossbars 51 is removed, the inserted connecting bolt 53 can be screwed into the first threaded groove 54 below the sliding sleeve 31 to limit the sliding height of the sliding sleeve 31 and prevent the operating table 3 from falling due to the malfunction of the scissor arm 2.

[0033] In use, the wheels of the movable base 1 move the base 1 and its upper structure to the designated location. Once at the work site, the wheels are locked. Workers and materials can then be placed on the operating platform 3. The hydraulic system drives the scissor arm 2 to raise the operating platform 3. During this raising, the large counterweight of the movable base 1 ensures greater stability as the guide rod 5 is vertically fixed. The sliding sleeve 31, guided upwards on the outer ring of the guide rod 5, stabilizes the lifting and lowering of the operating platform 3, preventing lateral forces from damaging or tipping the scissor arm 2. Afterwards, the equipment can be operated. During installation and other construction operations, if the scissor arm 2 malfunctions and cannot rise or fall smoothly, workers can use tools to remove the crossbar 51 at the height of the operating platform 3. The removed connecting bolt 53 is then screwed into the first threaded groove 54 below the sliding sleeve 31, placing the connecting bolt 53 below the sliding sleeve 31 and restricting its downward sliding. This prevents the operating platform 3 from falling due to the scissor arm 2 malfunction. Workers can then easily climb to the outside of the guide rod 5 by removing the crossbar 51 and descend via the lower climbing pole, avoiding the need to remain on the operating platform 3 and thus mitigating safety hazards. Maintenance work can then be performed. When the equipment is not in use, the locking bolt 41 can be unscrewed to remove and store the guide rod 5.

Claims

1. A construction hoist comprising a mobile base (1), a scissor arm (2) mounted above the mobile base (1) and an operating platform (3) fixed to the top of the scissor arm (2), characterized in that: The front two sides of the movable base (1) are fixed with insert frames (4), and guide rods (5) are vertically connected above the two insert frames (4). The two guide rods (5) are of the same length. A sliding sleeve (31) is welded and fixed to the front surface of the operating table (3) aligned with the guide rod (5). The sliding sleeve (31) is slidably placed on the outer ring of the guide rod (5). A crossbar (51) is horizontally connected between the front ends of the guide rods (5). Multiple crossbars (51) are equidistant and parallel to each other. The guide rods (5) on both sides are also parallel to each other.

2. The construction hoist according to claim 1, characterized in that: The bottom of the guide rod (5) is detachably connected to the inside of the insert frame (4).

3. The construction hoist according to claim 2, characterized in that: The guide rod (5) has two through holes (55) on its surface that is inserted into the insert frame (4). A locking bolt (41) is provided and passes through the insert frame (4) by screwing. The locking bolt (41) passes through the through holes (55) on the surface of the guide rod (5) to achieve detachable installation of the guide rod (5).

4. The construction hoist according to claim 1, characterized in that: The crossbar (51) is detachably mounted on the front end of the guide rod (5).

5. The construction hoist according to claim 4, characterized in that: Both ends of the crossbar (51) are provided with insert rods (511) that are inserted into slots (52) on the front surface of the guide rod (5). A connecting bolt (53) is provided to pass through the guide rod (5) into the slot (52) and screw into the screw hole (512) on the surface of the insert rod (511) to realize the detachable installation of the crossbar (51).

6. The construction hoist according to claim 5, characterized in that: The guide rod (5) has a plurality of threaded grooves (54) evenly distributed on its side surface. The inner diameter of the threaded grooves (54) is equal to the inner diameter of the threaded hole (512).

7. The construction hoist according to claim 1, characterized in that: The front end surface of the sliding sleeve (31) has an opening (311) and the width of the opening (311) is greater than the width of the crossbar (51).

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