Lifting frame for mounting heating ventilation air conditioner

Abstract

The utility model discloses a lifting frame for mounting a heating ventilation air conditioner, which relates to the field of construction of heating ventilation air conditioners, and adopts the technical scheme that the lifting frame comprises a lifting platform and a lifting rod, the lifting rod comprises an outer rod, a middle rod is arranged in the outer rod in a sliding manner, and an inner rod is arranged on the inner wall of the middle rod in a sliding manner; a sliding cylinder is slidably arranged on the side wall of the outer rod, a plurality of supporting legs are rotatably arranged on the side wall of the sliding cylinder, a connecting rod is rotatably arranged in the middle of each supporting leg, and the connecting rods are rotatably connected with the lower end of the outer rod; the lifting platform comprises two pieces of square steel arranged in parallel, an adapter plate is fixedly arranged between the two pieces of square steel, the adapter plate is fixedly connected with the upper end of the inner rod, and the two pieces of square steel are fixedly connected through a plurality of fixing rods. The utility model has the beneficial effects that the lifting height is adjusted, the floor height limitation is broken through, and the mounting requirements of different building floor heights are met; and when not used, the device can be folded, the overall size of the device during transportation and storage is remarkably reduced, and equipment transition and storage convenience is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of heating ventilation air conditioning construction, in particular to a lifting frame for heating ventilation air conditioning installation. BACKGROUND

[0002] Heating ventilation air conditioner is the air conditioner with heating, ventilation and air conditioning function. Since the main function of heating ventilation air conditioner includes three aspects of heating, ventilation and air conditioning, the comprehensive abbreviation of the three functions is heating ventilation air conditioner.

[0003] In order to facilitate the installation of air conditioner duct, in the actual construction process, the duct installation elevator is usually used to lift the duct to the roof for assembly personnel to assemble, and the existing air conditioner duct elevator is usually a scissor lift, which realizes lifting by relying on scissor arm unfolding, although it can provide a larger platform area, but there are obvious defects: large volume, difficult to move in narrow area, even unable to enter the operation area; The overall structure is a steel frame, and the self weight can reach 300-500 kg, relying on forklift or pulley auxiliary displacement, which is very inconvenient when transporting in non-hardened ground or building. UTILITY MODEL CONTENT

[0004] In view of the above technical problems, the utility model provides a lifting frame for heating ventilation air conditioner installation.

[0005] Its technical scheme is that it comprises a lifting platform and a lifting rod, the lifting rod comprises an outer rod, an intermediate rod is slidably arranged in the outer rod, and an inner rod is slidably arranged on the inner wall of the intermediate rod;

[0006] A sliding cylinder is slidably arranged on the side wall of the outer rod, a plurality of supporting legs are rotatably arranged on the side wall of the sliding cylinder, a connecting rod is rotatably arranged on the middle part of each supporting leg, and the connecting rod is rotatably connected with the lower end of the outer rod;

[0007] The lifting platform comprises two parallel arranged square steels, an adapter plate is fixedly arranged between the two square steels, the adapter plate is fixedly connected with the upper end of the inner rod, and the two square steels are fixedly connected by a plurality of fixed rods.

[0008] Preferably, a screw rod is coaxially rotatably arranged in the outer rod, the screw rod is threadedly connected with the lower end of the intermediate rod, a tubular sleeve is coaxially rotatably arranged in the intermediate rod, the sleeve is sleeved on the outer side of the screw rod and is axially slidably fixed with the screw rod in the radial direction;

[0009] An outer thread is arranged on the outer wall of the sleeve, and the sleeve is threadedly connected with the lower end of the inner rod.

[0010] Preferably, the lower end of the outer rod is fixedly provided with a gear frame, a driving bevel gear is rotatably arranged on the gear frame, a driven bevel gear is engaged with the driving bevel gear, and the driven bevel gear is coaxially fixed with the screw rod.

[0011] The driving bevel gear is also coaxially fixedly provided with a hand wheel.

[0012] Preferably, a threaded hole is formed in the side wall of the sliding cylinder, and a locking bolt is threadedly connected in the threaded hole.

[0013] Preferably, the top of the inner rod is fixedly provided with a mounting plate, mounting holes are formed in the mounting plate and the adapter plate, and the lifting platform is fixedly connected with the inner rod through bolts penetrating the mounting holes.

[0014] The technical scheme provided by the embodiment of the utility model has the beneficial effects of realizing the adjustment of the lifting height, breaking through the floor height limit, adapting to the installation requirements of different building heights, being foldable when not in use, significantly reducing the overall size of the device during transportation and storage, improving the convenience of equipment transfer and storage, and being light in overall quality and convenient to carry. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The utility model discloses an embodiment of the use state schematic diagram.

[0016] Figure 2 The utility model discloses an embodiment of the overall structure schematic diagram.

[0017] Figure 3 The utility model discloses an embodiment of the lifting rod schematic diagram.

[0018] Figure 4 The utility model discloses an embodiment of the cross section view. Figure 3 The utility model discloses an embodiment of the cross section view.

[0019] Figure 5 The utility model discloses an embodiment of the lifting platform schematic diagram.

[0020] Among them, the sign is: 1, lifting platform, 2, lifting rod, 3, outer rod, 4, middle rod, 5, inner rod, 6, sliding cylinder, 7, support leg, 8, connecting rod, 9, square steel, 10, adapter plate, 11, fixed rod, 12, screw rod, 13, sleeve, 14, gear frame, 15, driving bevel gear, 16, driven bevel gear, 17, hand wheel, 18, mounting plate, 19, air conditioner duct. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the utility model more clear and obvious, the utility model is further described in detail below by combining with the drawings and examples. Of course, the specific examples described here are only used to explain the utility model, and are not used to limit the utility model.

[0022] It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict.

[0023] In the description of the utility model, it should be understood that the orientation or position relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a specific orientation, a specific orientation and operation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" and the like can be explicitly or implicitly included one or more. In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0024] In the description of the utility model, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood by specific circumstances.

[0025] Embodiment 1

[0026] Referring to Figures 1 to 5 The utility model provides a kind of lifting frame for heating ventilation air conditioner installation, including lifting platform 1 and lifting rod 2, lifting rod 2 includes outer pole 3, middle pole 4 is slidably arranged in outer pole 3, inner pole 5 is slidably arranged on the inner wall of middle pole 4;

[0027] Outer pole 3 is slidably arranged on the side wall of sliding cylinder 6, and a plurality of supporting legs 7 are rotatably arranged on the side wall of sliding cylinder 6, one connecting rod 8 is rotatably arranged in the middle part of each supporting leg 7, and the lower end of connecting rod 8 is rotatably connected with outer pole 3.

[0028] Lifting platform 1 includes two parallelly arranged square steels 9, and the adapter plate 10 is fixedly arranged between the two square steels 9, the upper end of the inner rod 5 is fixedly connected with the adapter plate 10, and the two square steels 9 are fixedly connected by a plurality of fixed rods 11.

[0029] The operator manually pulls the sliding cylinder 6 outward to slide downward along the outer rod 3, the sliding cylinder 6 drives each support leg 7 to rotate and unfold around the hinge joint with the outer rod 3, the connecting rod 8 is linked in sequence, and a stable triangular support structure is formed;

[0030] The air conditioner duct 19 is placed on the fixed rods 11 of the lifting platform 1, and the nested sliding structure of the outer rod 3, the middle rod 4 and the inner rod 5 is used to realize multi-stage adjustment of the lifting height, expand the application range, and adapt to the installation requirements of different heights.

[0031] A screw rod 12 is coaxially arranged in the outer rod 3, the screw rod 12 is threadedly connected with the lower end of the middle rod 4, and a tubular sleeve 13 is coaxially arranged in the middle rod 4.

[0032] The outer wall of the sleeve 13 is provided with external threads, and the sleeve 13 is threadedly connected with the lower end of the inner rod 5.

[0033] The operator drives the screw rod 12 to rotate, and the screw rod 12 drives the middle rod 4 to extend out of the outer rod 3 through the threaded connection with the lower end of the middle rod 4.

[0034] The sleeve 13 in the middle rod 4 rotates synchronously with the screw rod 12, the external threads on the outer wall of the sleeve 13 form a threaded pair with the lower end of the inner rod 5, and when the screw rod 12 rotates, the inner rod 5 extends synchronously out of the middle rod 4, realizing three-stage synchronous extension and retraction of the outer rod 3, the middle rod 4 and the inner rod 5, high transmission efficiency and stable movement, the meshing characteristics of the threaded pair can form self-locking at any height, avoiding accidental lowering of the lifting platform 1 under the action of load, and high safety.

[0035] The rotation of the screw rod 12 is controlled to accurately adjust the extension length of the middle rod 4 and the inner rod 5, so that the lifting platform 1 reaches the target height.

[0036] The screw rod 12 is reversely rotated to make the middle rod 4 and the inner rod 5 sequentially retract into the outer rod 3, and the height is reset.

[0037] A gear frame 14 is fixedly arranged at the lower end of the outer rod 3, a driving bevel gear 15 is rotationally arranged on the gear frame 14, a driven bevel gear 16 is engaged on the driving bevel gear 15, and the driven bevel gear 16 is coaxially fixed with the screw rod 12.

[0038] A hand wheel 17 is also coaxially fixed on the driving bevel gear 15.

[0039] The operator holds and rotates the hand wheel 17 on the driving bevel gear 15, drives the driving bevel gear 15 to rotate around its axis through the hand wheel 17, the driving bevel gear 15 is engaged with the driven bevel gear 16, the rotary motion is transmitted to the driven bevel gear 16, and then the screw rod 12 coaxially fixed with the driven bevel gear 16 is synchronously rotated;

[0040] When the screw rod 12 rotates, the intermediate rod 4 is lifted through the threaded pair, and the sleeve 13 in the intermediate rod 4 rotates with the screw rod 12 and cooperates with the threaded pair of the inner rod 5, so that the inner rod 5 is synchronously extended from the intermediate rod 4.

[0041] The side wall of the sliding cylinder 6 is provided with a threaded hole, and a locking bolt is threadedly connected in the threaded hole.

[0042] When the supporting leg 7 is unfolded to the target angle, the operator tightens the locking bolt on the side wall of the sliding cylinder 6, so that the end of the bolt abuts against the surface of the outer rod 3, the position of the sliding cylinder 6 is locked through friction force, and the unfolding of the supporting leg 7 is ensured without shaking, and the overall supporting rigidity is improved.

[0043] Only the bolt needs to be manually rotated to complete locking or releasing, without the need of additional tools, so that the adjustment efficiency is high and the maintenance cost is low.

[0044] The mounting plate 18 is fixedly arranged at the top of the inner rod 5, mounting holes are arranged on the mounting plate 18 and the adapter plate 10, and the lifting platform 1 is fixedly connected with the inner rod 5 through the bolts penetrating the mounting holes.

[0045] The adapter plate 10 at the bottom of the lifting platform 1 is aligned with the mounting plate 18 at the top of the inner rod 5, the mounting holes of the two are overlapped, the bolt is inserted and the nut is tightened, and the rigid connection of the lifting platform 1 and the inner rod 5 is completed.

[0046] When the lifting platform 1 needs to be disassembled, the platform can be separated from the inner rod 5 only by loosening the bolt, so that the lifting platform 1 can be individually maintained or replaced with a different lifting platform 1.

[0047] Through the bolt connection design of the mounting plate 18 and the adapter plate 10, the lifting platform 1 and the lifting rod can be quickly disassembled and assembled, so that the components can be replaced or transported and carried separately.

[0048] In use, the operator manually pulls the sliding cylinder 6 outward to slide downward along the outer rod 3, the sliding cylinder 6 drives each supporting leg 7 to rotate and unfold around the hinge point of the supporting leg 7 and the outer rod 3, and the connecting rod 8 is linked, so that a stable triangular supporting structure is formed.

[0049] The air conditioner air pipe 19 is placed on the plurality of fixing rods 11 of the lifting platform 1, and through the nested sliding structure of the outer rod 3, the intermediate rod 4 and the inner rod 5, the multi-stage adjustment of the lifting height is realized, the application range is expanded, and the installation requirements of different heights are adapted.

[0050] The above is only a preferred embodiment of the utility model, and is not used to limit the utility model, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A lifting frame for heating, ventilation and air conditioning installation, characterized by, Including lifting platform (1) and lifting rod (2), the outer rod (3) is arranged in the middle rod (4) which is arranged in the outer rod (3) slidingly, the inner wall of the middle rod (4) is arranged with the inner rod (5) slidingly; The side wall of the outer rod (3) is arranged with a sliding cylinder (6), the side wall of the sliding cylinder (6) is arranged with a plurality of supporting legs (7) rotatingly, the middle part of each supporting leg (7) is arranged with a connecting rod (8) rotatingly, and the connecting rod (8) is connected with the lower end of the outer rod (3) rotatingly. The lifting platform (1) comprises two parallel arranged square steels (9), and the adapter plate (10) is fixedly arranged between the two square steels (9), the adapter plate (10) is fixedly connected with the upper end of the inner rod (5), and the two square steels (9) are fixedly connected by a plurality of fixed rods (11).

2. The lifting frame for air conditioning installation according to claim 1, wherein The outer rod (3) is arranged with a screw rod (12) rotating coaxially, the screw rod (12) is threadedly connected with the lower end of the middle rod (4), the middle rod (4) is arranged with a tubular sleeve (13) rotating coaxially, the sleeve (13) is arranged on the outer side of the screw rod (12) and is fixed axially slidingly with the screw rod (12) radially; The outer wall of the sleeve (13) is provided with external threads, and the sleeve (13) is threadedly connected with the lower end of the inner rod (5).

3. The lifting frame for air conditioning installation according to claim 2, wherein The lower end of the outer rod (3) is fixedly provided with a gear frame (14), the gear frame (14) is arranged with a driving bevel gear (15) rotatingly, the driving bevel gear (15) is engaged with a driven bevel gear (16), and the driven bevel gear (16) is fixed coaxially with the screw rod (12). The driving bevel gear (15) is also arranged with a hand wheel (17) fixed coaxially.

4. The hoisting rack for air conditioning installation according to claim 1, wherein The side wall of the sliding cylinder (6) is provided with a threaded hole, and the threaded hole is threadedly connected with a locking bolt.

5. The hoisting rack for air conditioning installation according to claim 1, wherein The top of the inner rod (5) is fixedly provided with a mounting plate (18), the mounting plate (18) and the adapter plate (10) are both provided with mounting holes, and the lifting platform (1) and the inner rod (5) are fixedly connected by the bolts penetrating through the mounting holes.

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