CN201193200Y

CN201193200Y - Portable elevating device

Info

Publication number: CN201193200Y
Application number: CNU2008200861320U
Authority: CN
Inventors: 黄庆友
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-04-18
Filing date: 2008-04-18
Publication date: 2009-02-11
Anticipated expiration: 2018-04-18

Abstract

The utility model discloses a portable lifting device, which is widely used in various occasions to life heavy objects, and is particularly applicable to the hoisting and assembly of indoor set in the air conditioning industry. The device consists of a chassis, a foldable stabilizer arranged below the chassis, folding legs arranged on the chassis, a supporting frame arranged on the folding legs, and an actuating mechanism arranged on the folding legs and used to control the folding and elevation of the folding legs. The utility model is mainly characterized in that the folding legs are designed to be a plurality of rows, and each row of folding legs are hinged with the chassis and the supporting frame via two pole supports, wherein, the bottom ends and the top ends of the two pole supports are respectively hinged with each other; as the hinged points play only a supportive role and do not cause displacement in the folding process, the focuses of heavy weights do not produce excursion; and as the stress point does not change in the folding and elevating process, the lifting surface area is not reduced in the elevating process; therefore, the stability of the whole lifting device is improved, the structure is reliable, the shape is compact, the lifting of heavy objects is easy, the use is energy-saving and labor-saving, the safety factor is high, the device is easy to carry, and the work efficiency is greatly improved.

Description

Portable jacking system

Technical field

The utility model relates to a kind of jacking system, in particular for the portable jacking system of lifting weight to eminence.

Background technology

People need be raised to some weights eminence and lay or install in the daily life, for example the indoor apparatus of air conditioner eminence that need be lifted to the room is installed, because the rational mechanism of neither one carries out lifting, can only rely on two people to climb up the staircase that leans against wall simultaneously generally speaking indoor set is raised to eminence, in handling process, not only waste time and energy, and it is very dangerous, especially the installation of indoor set need keep horizontality, time one is long, the people of lifting is very tired, cause machine to ruin in an unguarded moment, accidents such as the people turns over, this mode of operation also influences work efficiency greatly simultaneously.And existing lifting apparatus generally is difficult to be applied to the lifting needs of this class work post, for example disclosed China Patent No. is that 200410097821.8 " jacking system and the lifting bed that uses this jacking system " also is to belong to a kind of lifting instrument, comprise underframe, leg, folding stand, formations such as bracing frame, its folding stand is by before a plurality of, the back " X " type support and be articulated and connected before, the cross bar of back " X " type support is formed, though this structure can solve the lifting needs of some occasion objects, but because the open defect that exists in the structure makes it can't satisfy the needs of weight lifting far away, for example folding stand quantity has only row, and all be that direct two ends by " X " type support are hinged on the base separately, and the bracing frame on the folding stand also is this hinged relationship, this articulated structure is in the folding stand lifting process, with underframe and two hinge-points of bracing frame pivotally attached folding stand except having supporting role, also need to participate in the lifting purpose that parallel motion just can reach folding stand, so in case weight is put into bracing frame and is carried out the eminence lifting, its center-of-gravity position is inevitable constantly to be changed, and rising height is high more, distance is near more between two hinge-points, then the area of thrust surface of weight on bracing frame are more little, there is big potential safety hazard in the inevitable stability that influences entire bracket greatly.

Summary of the invention

Technical problem to be solved in the utility model is to overcome the defective of prior art and a kind of reliable in structure, small and exquisite, the good stability of profile is provided, and safety factor height, weight lifting be convenient, it is time saving and energy saving to use, be easy to carry and the portable jacking system of high efficiency.

Technical matters of the present utility model is achieved through the following technical solutions:

A kind of portable jacking system, it comprises underframe, the underframe below is provided with leg, the underframe top is hinged with the folding stand of vertical direction lifting, this folding stand is made up of the cross bar of forward and backward " X " type support and forward and backward " X " type support that is articulated and connected, this folding stand top is equipped with bracing frame, the folding stand bottom is equipped with the operating mechanism of handling the folding stand lifting, it is characterized in that described folding stand has multiple row, along horizontally being hinged on the underframe, each row folding stand is all hinged with underframe and bracing frame respectively with two poles that its bottommost and top are hinged.

Described underframe is the quadra structure; Described leg top and underframe are hinged, and the leg middle part is provided with stirrup, is provided with the detachable knighthead of the hinged end of an end between leg and underframe.

The bottom of described each root leg is provided with by the telescopic leg of marking closely screw lock, and this telescopic leg bottom is provided with anti-sliding sleeve.

Hinged between described " X " type support and the cross bar by rivet, between support and rivet, be provided with movable axle sleeve.

Each limit of described bracing frame respectively is provided with the pull bar of outside stretching and the lock screw of locking pull bar, and the pull bar draw direction of opposite face is opposite.

Described operating mechanism comprises the screw mandrel of operating handle and attended operation handle, and this screw mandrel is in transmission connection at retainer that the bottom bar with every row folding stand fixes simultaneously and is bearing on the bearing seat that the bottom bar with every row folding stand fixes.

Described operating handle comprises and is hinged on the connection handle on the screw mandrel and is threaded in short handle on the connection handle that this short handle end is hinged with rocking handle.

Close-fitting has the drive sleeve that is connected to form drive connection with wire rod thread in the described retainer.

Described multiple row folding stand is 2～4 row.

Compared with prior art, the utility model is that the folding stand to portable jacking system improves, folding stand quantity is designed to multiple row, simultaneously each row folding stand is all hinged with underframe and bracing frame respectively with two poles that its bottommost and top are hinged, after this structural development, its hinge-point that is positioned at underframe or bracing frame place is only played a supporting role, and can in folding process, not produce displacement, so the lifting process center of gravity of weight can not produce skew, improved the stability of whole jacking system, this reliable in structure, profile is small and exquisite, the weight lifting is convenient, be particularly useful for the air-conditioning repairs profession, it is time saving and energy saving to use, safety factor is high and be easy to carry, and increases work efficiency greatly.

Description of drawings

Fig. 1 is a perspective view of the present utility model.

Fig. 2 is support and cross bar bonded assembly structural representation.

Fig. 3 is A-A cutaway view of Fig. 2.

Fig. 4 is the C place cross-sectional schematic of Fig. 1.

Fig. 5 is the left view of Fig. 4.

Fig. 6 is the B place cross-sectional schematic of Fig. 1.

Fig. 7 is the left view of Fig. 6.

Fig. 8 is the rocking handle partial schematic sectional view.

Fig. 9 is the telescopic leg cross-sectional schematic.

The specific embodiment

To elaborate again to the utility model embodiment by above-mentioned accompanying drawing below.

As Fig. 1～shown in Figure 9, spiral shell is fixed for 1-leg, 2-anti-sliding sleeve, 3-mark closely, 4-stirrup, 5-underframe, 6-fixed link, 7-cross bar, 8-retainer, 9-short handle, 10-rocking handle, 11-connection handle, 12-angle square sheet, 13-" X " type support, 14-lock screw, 15-pull bar, 16-bracing frame, 17-pole, 18-bearing seat, 19-screw mandrel, 20-dish shape nut, 21-brace, 22-rivet, 23-movable axle sleeve, 24-drive sleeve, 25-telescopic leg.

A kind of portable jacking system, the steel underframe 5 that comprises the framed structure that is rectangle, underframe has leg 1, this leg is hinged on respectively on the angle square sheet 12 at four angles of underframe, between two legs 1 of broadside, be connected with stirrup 4, the hinge-point that is provided with two pairs of legs of stirrup simultaneously has diff-H to form folded state, all be provided with telescopic leg 25 in each root leg 1, this telescopic leg as shown in Figure 9, its outer wall is provided with the dovetail groove that is provided with vertically, after telescopic leg puts in place from leg 1 in-draw, the screw 3 of marking closely that passes the leg outer wall clenches in this dovetail groove to form locking, this structure also can latch and the pin-and-hole form of pegging graft lock, as on leg, being connected with latch, be provided with a plurality of vertical pin-and-holes that gather at the telescopic leg outer wall simultaneously, after telescopic leg 25 put in place from the leg in-draw, latch stretches in the pin-and-hole can form locking.The rubber system that is provided with in the lower end of telescopic leg 25 is prevented sliding sleeve 2 or according to actual conditions roller is installed, is convenient to certain limit and moves.Height by the whole underframe 5 of these telescopic leg 25 energy automatic compensations, lifting for some special occasions simultaneously requires also can easily be competent at, for example some local weight promotes and just is positioned at the stair place, make whole underframe remain at level attitude by adjusting four telescopic leg 25 on the leg 1 to adapt to the position that is uneven at stair place this moment.

Between underframe 5 and each leg 1, also be provided with passive brace 21, to improve the stability of whole jacking system, brace one end is hinged on the long limit of underframe 5, the other end has the breach structure, this breach buckles on the short pin that is fixed on leg, buckling into dish shape nut 20 lockings of back that put in place by being threaded on the short pin, this connection structure convenient disassembly, be beneficial to folding.

Be hinged with folding stand on the underframe 5, bracing frame 16 is installed on the folding stand, described folding stand quantity is horizontal pivotally attached 2～4 row according to the different designs of use occasion generally, each row folding stand all is fixed link 6 ends that are hinged on underframe 5 and bracing frame 16 with two mutually hinged poles 17 at its bottommost and top, and each row folding stand also all include be positioned at the long limit of underframe before, back two row's mutually hinged one-tenth " X " type supports 13, the vertically mutually hinged again one of each " X " type support end, before every row folding stand, back " X " type support 13 all is articulated in cross bar 7 two ends, the quantity of " X " type support also is to carry out design-calculated according to the difference of rising height, and the maximum height of general lifting is about 3 meters.Hinged by rivet 22 between " X " type support and cross bar, as Fig. 2, shown in Figure 3, between support and rivet, be provided with movable axle sleeve 23 to improve folding alerting ability, reduce swing.Described bracing frame 16 is used to place weight, simultaneously in order to increase the load-bearing area, respectively is provided with pull bar 15 that outwards stretches respectively and the lock screw of fixing 14 on four limits of bracing frame after pull bar is pulled out.

The folding stand bottom is equipped with the operating mechanism of handling the folding stand lifting, this operating mechanism comprises the screw mandrel of operating handle and attended operation handle, described operating handle as shown in Figure 8, it comprises the connection handle 11 that is hinged on the screw mandrel and is threaded in short handle 9 on the connection handle, the short handle end is hinged with rocking handle 10, and the screw thread of the length of rocking handle by short handle and the connection handle degree of depth that spins is controlled, to regulate the moment size, it is more laborsaving that rocking handle 10 is shaken, and operating handle also can substitute by electric handle.Described screw mandrel is in transmission connection at retainer that the bottom bar with every row folding stand fixes 8 simultaneously and is bearing on the bearing seat 18 that the bottom bar 7 with every row folding stand fixes, this retainer and bearing seat horizontal interval (HI) are arranged and are arranged on the bottom bar of each row folding stand, when two row folding stands are for example arranged, four cross bars are arranged at its bottom, array from left to right and be bearing seat this moment, retainer, bearing seat and retainer, and the screw mandrel that has operating handle passes retainer successively and forms and to be in transmission connection, and by bearing block support, retainer 8 is as Fig. 4, shown in Figure 5, be provided with the drive sleeve 24 that is connected to form drive connection with wire rod thread in it, the relative screw mandrel of retainer moves axially, bearing seat 18 is as Fig. 6, shown in Figure 7, directly be set in outside the screw mandrel 19, support usefulness as setting upright of folding stand, the relative screw mandrel of bearing seat is fixed, the action that only runs up is used, when shaking operating handle, retainer is a left side on screw mandrel, right level moves to bearing seat, thereby drives cross bar 7 and " X " type support formation jacking condition.

The utility model is applicable to the occasion of various weight liftings, be particularly useful in the interior environment system industry the lifting of indoor set and needs are installed, there is not influence in the folding lifting of this device for stress point, so can not reduce the area of thrust surface of weight in the lifting process, good stability, easy to use, folding draw in laborsaving fast, be convenient for carrying, the safety factor height.

Claims

1. portable jacking system, it comprises underframe (5), the underframe below is provided with leg (1), the underframe top is hinged with the folding stand of vertical direction lifting, this folding stand is by preceding, the back " X " type support (13) and be articulated and connected before, the cross bar (7) of back " X " type support is formed, this folding stand top is equipped with bracing frame (16), the folding stand bottom is equipped with the operating mechanism of handling the folding stand lifting, it is characterized in that described folding stand has multiple row, along horizontally being hinged on the underframe (5), each row folding stand is all hinged with underframe (5) and bracing frame (16) respectively with two poles (17) that its bottommost and top are hinged.

2. portable jacking system according to claim 1 is characterized in that described underframe (5) is the quadra structure; Described leg (1) top and underframe (5) are hinged, and the leg middle part is provided with stirrup (4), is provided with the detachable knighthead (21) of the hinged end of an end between leg and underframe.

3. portable jacking system according to claim 1 is characterized in that the bottom of described each root leg (1) is provided with by the telescopic leg (25) of marking closely screw (3) locking, and this telescopic leg bottom is provided with anti-sliding sleeve (2).

4. portable jacking system according to claim 1, it is hinged to it is characterized in that passing through rivet (22) between described " X " type support and the cross bar (7), is provided with movable axle sleeve (23) between support and rivet.

5. portable jacking system according to claim 1 is characterized in that each limit of described bracing frame (16) respectively is provided with the pull bar (15) of outside stretching and the lock screw (14) of locking pull bar, and the pull bar draw direction of opposite face is opposite.

6. portable jacking system according to claim 1, it is characterized in that described operating mechanism comprises the screw mandrel (19) of operating handle and attended operation handle, this screw mandrel is in transmission connection at the retainer (8) that the bottom bar (7) with every row folding stand fixes simultaneously and is bearing on the bearing seat (18) that the bottom bar (7) with every row folding stand fixes.

7. portable jacking system according to claim 6 is characterized in that described operating handle comprises the connection handle (11) that is hinged on the screw mandrel (19) and is threaded in short handle (9) on the connection handle, and this short handle end is hinged with rocking handle (10).

8. portable jacking system according to claim 1 is characterized in that the interior close-fitting of described retainer (8) has to be threaded with screw mandrel (19) to form the drive sleeve (24) of drive connection.

9. according to each described portable jacking system of claim 1～8, it is characterized in that described multiple row folding stand is 2～4 row.