CN207175393U - A kind of central air-conditioning filter element replacing instrument - Google Patents

Abstract

A kind of central air-conditioning filter element replacing instrument, belongs to central air-conditioning installation area of maintenance, and described base includes bottom plate, column, directive wheel mounting hole, rope mount hole；Described base includes bottom plate, column, directive wheel mounting hole, rope mount hole；Described bottom plate is arranged on column lower end, is aluminum alloy thin wallboard with uprights vertical；Described column is arranged on the geometric center of base plate plane, vertical with bottom plate；Described directive wheel mounting hole is arranged on the both sides of the edge of bottom plate；Described mounting hole site is located along the same line in two groups of the same side, and both sides are parallel to each other；Described rope mount hole is arranged on bottom plate, and positioned at column both sides, the middle part with side where directive wheel mounting hole, labour can effectively be reduced by having, safety and environmental protection, the characteristics of carrying easy to operation.

Description

A kind of central air-conditioning filter element replacing instrument

Technical field

The invention belongs to central air-conditioning installation and maintenance service field, more particularly to a kind of central air-conditioning filter element replacing instrument.

Background technology

With social progress, the application of central air-conditioning is more and more extensive, in particular with the exacerbation of environmental pollution, in center Filter is installed additional in the ventilating system of air-conditioning and changes the frequency more and more higher of the filter core of filter；The filtering of central air-conditioning Device is typically mounted at ventilating system, and the ventilating system of central air-conditioning is often provided on the roof of building, therefore, central hollow Adjusting the replacing of filter core has certain difficulty, and particularly relatively large central air-conditioning, its filter core volume is big, weight weight, changes more Add difficulty；The existing method for changing central air-conditioning filter core is more than two operating personnel, upper to peace using ascending tool The height of the ventilation shaft of filter core is filled, old filter core is pulled down, is put into ground, then pick up new filter core, puts into installation filter core Position, a people holds in the palm, and another person carries out fastening installation；Have a disadvantage in that, need a people to hold up during cartridge removal, It is relatively elaborate, it can many times cause filter core to come off, smash ground and pollute ground, a people can not complete；Furthermore install During new filter core, employment held up, it is relatively difficult to be aligned, and needs multiple person cooperational in the case where filter core is heavier, and in general is ascended a height work Tool can not accommodate more people simultaneously while work, and after filter core installation is entered, very important person's picking-up be still needed to during fastening, often generation filter core comes off The phenomenon broken.

The content of the invention

The problem of existing for existing central air-conditioning filter element replacing, the present invention propose a kind of central air-conditioning filter element replacing work Tool, it is characterised in that：Including support, lifting seat, handle, elevating mechanism, pulley assembly, rope；Described support is combined type It support, easy can dismount, be placed on below the filter core of central air-conditioning filter element replacing scene；Described lifting seat is arranged on support It is interior, it can be moved up and down on support along support, its both sides connects respectively at rope, can be in the drive lower edge branch of elevating mechanism Moved along a straight line inside frame；Described handle is arranged on one end of elevating mechanism, is connected with elevating mechanism, can drive lift Structure rotates and stopped；Described elevating mechanism is rack-mount, is fixedly connected with support, and its junction can be adjusted in support On installation site；Described elevating mechanism is connected with rope, and rope can be driven to wind or discharge；Described pulley assembly peace On support, positioned at the lower section of rack connecting plate, fix and be detachably connected with support, rope is wrapped on pulley；Described Pulley assembly has two, the both sides being symmetrically mounted on above support；Described rope one end is connected with elevating mechanism, the other end with Lifting seat connects, and middle part coils through assembly pulley；Described rope is flexible rope, is cordage either steel wire rope or anchor Chain.

Described support includes cat ladder, connecting plate；Described cat ladder has two, is symmetrically mounted on the both ends of connecting plate, its Guiding channel opening on two cat ladders is relative；Described connecting plate is arranged on the top of cat ladder, there is two；Described connecting plate with The link position of cat ladder can be adjusted.

Described cat ladder includes guide groove, montant, cross bar, top plate, connecting hole；Described guide groove is arranged on montant, Positioned at one longitudinal side of montant, the length of montant is penetrated；Described guiding slot cross-section open rectangle, its opening direction is in support Inner side；Described montant is arranged on the both ends of cross bar, with cross bar vertical connection；Its top is connected with top plate；Described montant has Two, it is symmetrically distributed in the both ends of cross bar；Described cross bar is arranged between two montants, have it is multiple, it is parallel to be distributed in montant Length direction, its spacing can adapt to operating personnel and ascend a height the distance to stride；Described mounting of roof plate is on montant top, with montant Vertical connection；Described top plate outer ledge is concordant with the outer side edges of montant, and inside edge is with stretching out the inner side of montant namely Side where guide groove；Described connecting hole is arranged on top plate, there is two, is slotted hole through hole.

Described connecting plate includes plate body, fixing hole, assembly pulley installation fixing hole；Described plate body uses aluminum alloy plate materials It is made, its length matches with conventional central air-conditioning filter core sectional dimension；Described fixing hole is arranged on plate body both ends, is oval Hole through hole；Described assembly pulley mounting hole is arranged in the middle part of plate body, is screwed hole.

Described lifting seat includes directive wheel, base, adjustment seat；Described directive wheel is arranged on below base, can be adjusted Save the length that directive wheel stretches out base；Described directive wheel has four, is symmetrically distributed in surrounding below base；Described base peace Above directive wheel, it is connected with directive wheel；Described base top is connected with adjustment seat, and bottom is connected with rope；Described Adjustment seat is arranged on base, is socket connected mode with base, can be adjusted the relative position between adjustment seat and base.

Described directive wheel includes roller, roller shaft, pedestal, mounting hole；Described roller is arranged on the end of roller shaft, It can be rotated freely on roller shaft；The width for the guide groove that described roller external diameter is less than or equal on the cat ladder of support；It is described Roller shaft be arranged on pedestal on, one end is fixedly connected with pedestal, and the other end is connected with roller, its axis and install centerline hole It is parallel；Described pedestal is the long strip shape body of rectangular cross-section, its one end and roller axis connection；Described mounting hole is set On pedestal, the lower planes positioned at pedestal and the thickness through pedestal；Described mounting hole is slotted hole, and its length can fit Answer the width adjusting scope of support.

Described base includes bottom plate, column, directive wheel mounting hole, rope mount hole；Described bottom plate is arranged on column Lower end, it is aluminum alloy thin wallboard with uprights vertical；Described column is arranged on the geometric center of base plate plane, vertical with bottom plate； Described column is aluminum alloy hollow tubulose；Fixed bolt hole is provided with outside described column, described fixed bolt hole passes through Wear the wall thickness of column；Described column is internally provided with internal thread, outer on the adjustable column in its specification and size and adjustment seat Screw thread matches；Described directive wheel mounting hole is arranged on the both sides of the edge of bottom plate, shares 4 groups, every group two, its hole is screw thread Hole；The diameter of described screwed hole matches with the installation hole width on directive wheel, and every group of two screwed holes are smaller than being oriented to The length of mounting hole on wheel；Described mounting hole site is located along the same line in two groups of the same side, and both sides are parallel to each other； Described rope mount hole is arranged on bottom plate, positioned at column both sides, the middle part with side where directive wheel mounting hole；Described Rope mount hole is opening circular hole, and it is open towards the edge of bottom plate.

Described adjustment seat includes adjustable column, pallet；Described adjustable column is arranged on pallet bottom, and is located at holding tray surface Geometric center；Described adjustable column is hollow aluminium alloy tubular body；Described adjustable column excircle has external screw thread, and its is externally threaded Specification and size match with the internal thread on the column on base；Described pallet is arranged on the upper end of adjustable column, its plane It is vertical with column axial line；Described pallet is that thin-wall aluminum alloy plate is made or is made up of plastic plate；Described pallet upper table Face is provided with shoe；Described shoe is multiple equally distributed raised or sunken.

Described handle includes mounting ring, fastener hole, Holder for hand crank, crank；Described mounting ring is arranged on the one of Holder for hand crank End, is annular, and the power transmission shaft external diameter of its diameter of bore and elevating mechanism matches；Described fastener hole is arranged on mounting ring Excircle, it is vertical with the internal control of mounting ring；Described fastener hole is screwed hole；Described Holder for hand crank is arranged on the cylindrical of mounting ring The endoporus of Zhou Bingyu mounting rings is vertical, and its both ends is concordant with the both ends of mounting ring；There are open slot, one end among described Holder for hand crank It is connected with mounting ring, the other end is hinged by bearing pin and crank；Described crank is arranged on the end of Holder for hand crank, to be cylindrical, It is hinged, can be freely rotated on Holder for hand crank by bearing pin and Holder for hand crank, its rotational angle is not less than 180 °.

Described elevating mechanism includes deck, power transmission shaft, left rope sheave, right rope sheave；Described deck has two, installs respectively Fastened in the both sides of the unilateral cat ladder of support, and using screw, its installation site can be adjusted along cat ladder, the other end of deck with It is driven axis connection；Described power transmission shaft is arranged on two decks, can be rotated on deck, and wherein one end end connects with handle Connect；Described left rope sheave is arranged on power transmission shaft, is fixedly connected with power transmission shaft；Described left rope sheave is made of plastics；Described There is groove on left rope sheave excircle, the width and depth of its groove can accommodate single rope and be completely wound around in its groove；A described left side Cable end fixed element is provided with rope sheave, this fixed element is to set through hole in groove sidewall；Described right rope sheave installation On the right side of left rope sheave, its structure is identical with left rope sheave.

Described deck includes fastener hole, baffle plate, connecting plate, support plate, transmission axis hole；Described fastener hole is arranged on baffle plate On, there is two or more, be screwed hole, through Weir Plate Thickness；Described baffle plate setting is in connecting plate one end, one end vertical with connecting plate It is hanging that the other end is connected with connecting plate；Described connecting plate is arranged on the end of baffle plate and support plate, its both ends respectively with baffle plate and support plate End vertical connection；Described support plate is arranged on one end of connecting plate, vertical with connecting plate, on the inside of its support plate with the inside of baffle plate away from From the section transverse width of the montant of the cat ladder more than or equal to support；Described support plate lower end is provided with transmission shaft mounting hole, should Mounting hole can accommodate and fixed corresponding bearing；Described transmission axis hole is arranged on the lower end of support plate, vertical with support plate plane, For through hole；Described transmission axis hole can install the rolling bearing matched with power transmission shaft.

Described pulley assembly includes pulley, pulley base, bearing pin；Described pulley is arranged on bearing pin, can be around bearing pin Rotate；Described pulley excircle has groove, and the depth and width of its groove and the diameter of rope match；In described pulley endoporus Bearing is installed；Described pulley base is arranged on connecting plate, is L-shaped, so convenient to load rope from pulley side；Described Bearing pin is arranged on pulley base, is fixedly connected with pulley base；Described bearing pin is vertical with the side panels of pulley base, and one end hangs Sky, its free end are connected with pulley.

Beneficial effect

The beneficial effects of the present invention are can simplify central air-conditioning filter element replacing, save labour, securely and reliably, no Damage filter core.

Brief description of the drawings

Fig. 1 is the structural representation of the present invention

1. support, 2. lifting seats, 3. handles, 4. elevating mechanisms, 5. pulley assemblies, 6. ropes.

Fig. 2 is the structural representation of the support of the present invention

11. cat ladder, 12. connecting plates.

Fig. 3 is the structural representation of cat ladder

111. guide groove, 112. montants, 113. cross bars, 114. top plates, 115. connecting holes.

Fig. 4 is the structural representation of connecting plate

121. plate body, 122. fixing holes, 123. assembly pulleys installation fixing hole.

Fig. 5 is the structural representation of lifting seat

21. directive wheel, 22. bases, 23. adjustment seats.

Fig. 6 is the structural representation of directive wheel

211. rollers, 212. roller shafts, 213. pedestals, 214. mounting holes.

Fig. 7 is the structural representation of base

221. bottom plates, 222. columns, 223. directive wheel mounting holes, 224. rope mount holes.

Fig. 8 is the structural representation of adjustment seat

231. adjustable column, 232. pallets.

Fig. 9 is the structural representation of handle

31. mounting ring, 32. fastener holes, 33. Holder for hand crank, 34. cranks.

Figure 10 is the structural representation of elevating mechanism

41. deck, 42. power transmission shafts, 43. left rope sheaves, 44. right rope sheaves.

Figure 11 is the structural representation of deck

411. fastener holes, 412. baffle plates, 413. connecting plates, 414. support plates, 415. transmission axis holes.

Figure 12 is the structural representation of assembly pulley

51. pulley, 52. pulley bases, 53. bearing pins.

Embodiment

In order to further illustrate technical scheme, in conjunction with the embodiment of the brief description of the drawings present invention；Such as Figure 12, the common rolling bearing of 30 millimeters of outside diameter, endoporus and national standard, bearing are made into this example from aluminium alloy 6 millimeters of 6 mm of thickness of internal diameter matches, 20 millimeters of thickness, sets wide 5 millimeters on excircle, and deep 5 millimeters of groove is as pulley 51, from the general diameter millimeter of the industry the bearing pin with shaft end ring as bearing pin 53, from aluminum alloy plate materials, thickness 5 millimeters, L-shaped is made, 20 millimeters of its bond length, long 40 millimeters of edge lengths, 30 millimeters of uniform width, in the threshold value of long side 15 millimeters of lower end making pin shaft hole, as pulley base 52, bearing pin 53 is arranged on pulley base 52, pulley 51 is arranged on into bearing pin On 53, the implementation of assembly pulley 5 is just completed.

Such as Figure 11, Figure 10, aluminum alloy plate materials are selected in this example, 5 millimeters of its thickness, from 40 millimeters of the width of baffle plate 412, 40 millimeters of length is so in order to match the sectional dimension of the montant 112 on cat ladder 11；It is 40 millimeters long from the width of connecting plate 413 41 millimeters of degree, from 40 millimeters of the width of support plate 414,100 millimeters of length, by the both ends of connecting plate 413 respectively at the He of baffle plate 412 The end part aligning of support plate 414, polished after welding, ensure to be mutually perpendicular to；Transmission axis hole 415 is made in support plate lower end, is selected in this example By the use of the hole of rolling bearing transition as transmission axis hole 415, rolling bearing is installed in hole, the diameter of bore of its rolling bearing is equal to The diameter of power transmission shaft 42, the tapped through hole for the M6 that two spacing are 20 millimeters is set on baffle plate 412, parallel to baffle plate 412 Edge is as fastener hole 411, and this completes the implementation of deck 41；The general wiring crop rotation of the industry is made from plastic material For left rope sheave 43 and right rope sheave 44,5 millimeters of the rope fastening hole diameter of groove sidewall is arranged through on the inside of rope sheave groove；From one's own profession Two decks 41 are stuck on cat ladder 11, will be driven as power transmission shaft 42 by the cylindrical power transmission shaft of 12 millimeters general of diameter of industry Axle 42 is through deck 41 and left rope sheave 43 and right rope sheave 44 are installed thereon, using national standard plain bolt M6, passes through fastening Hole 411 is locked with cat ladder 11, just completes the implementation of elevating mechanism 4；As a result of light materials such as aluminium alloy and plastics, and And design small size, it is easy to carry, it is easy to operate, while rolling bearing is employed, it is light in operation.

As selected aluminum alloy materials in Fig. 9 this example, respectively as mounting ring 31, Holder for hand crank 33, crank 34 material, this example Middle 12 millimeters of the diameter of bore from mounting ring 31,20 millimeters of external diameter, 16 millimeters of thickness；From the milli of thickness 16 of Holder for hand crank 33 Rice, 60 millimeters of length, 14 millimeters of width, 50 millimeters of opening well width 4 mm depth, set in the middle part of at 6 millimeters of end Crank mounting hole, 4 millimeters of the diameter in hole run through groove and two side；It is used as and is shaken from 8 mm length of diameter, 120 millimeters of cylinder 34, the flat of 4 millimeters of 20 mm of thickness of length is produced in its one end, pin-and-hole, 4 millimeters of pin-and-hole diameter, another are made on flat One end end carries out radiused processing, scratch operating personnel when avoiding operating, and flat length guarantees the energy of crank 34 for being Enough swing more than 180 °, be easy to locking elevating mechanism 3 to stop the rotation；From the straight pin of national standard, installed in the He of crank 34 The pin-and-hole and crank mounting hole of Holder for hand crank 33, ensure that crank 34 can be rotated freely, this completes the implementation of handle 3.

Such as Fig. 5, Fig. 6, Fig. 7, Fig. 8, the aluminium-alloy pipe of diameter 400 millimeters of 30 mm length, 4 millimeters of wall thickness is selected in this example As adjustable column 231, the circle of 200 millimeters of diameter is made into as pallet 232 from 2 millimeters of aluminium alloy plate of thickness, with Just the picking-up of small filter core is adapted to, is selected in this example and the rubber slab of 1 millimeter of thickness is pasted in the upper surface of pallet 232 as anti-skidding Layer；Adjustable column 231 is connected with vertical concentric below pallet 232, just completes the implementation of adjustment seat 23；From thickness in this example The aluminium alloy plate of 3 millimeters of degree chooses 400 millimeters of its width, 600 millimeters of length as bottom plate 221；From 40 millimeters of wall thickness of diameter The aluminium-alloy pipe of 5 500 millimeters of mm lengths is as column 222, by its one end and the vertical welding of bottom plate 221, and top wherein External peripheral surface makes M6 screwed hole, through a side thickness；The specification for choosing directive wheel mounting hole 223 is M6, point four components For cloth at the both ends of bottom plate 221, the distance at its hole center to edge is equal to the half of directive wheel base width；Every group of pitch of holes selects 50 Millimeter, to increase the stretching adjustable range of directive wheel 21；From a diameter of 6 millimeters of rope mount hole 224, its A/F For 4.5 millimeters, the both ends center of bottom plate 221 is arranged on, this completes the implementation of base 22；External diameter is selected in this example 30 millimeters, the rolling bearing that 10 millimeters of thickness is as roller 211, from the round steel conduct matched with described rolling bearing endoporus Roller shaft 212；From 12 millimeters of thickness, the material of the aluminum alloy plate materials of 300 millimeters of 20 mm length of width as pedestal 213, By its one end and roller axis connection, 200 millimeters of length is opened up in its plane, the slotted hole that 7 millimeters of width is as mounting hole 214, this completes the implementation of directive wheel 21；It is directed to the lower section that wheel 21 is arranged on base 22, be connected by screw bolts, ensures The length that directive wheel 21 stretches out base 22 can be adjusted；The directive wheel 21 selected in this example has four, is symmetrically distributed in base 22 Lower section surrounding；Base 22 is arranged on to the top of directive wheel 21, is connected with directive wheel 21；By the top column of base 22 222 endoporus and the socket of adjustable column 231 of adjustment seat 23 are connected, and blending bolt fastening, bottom is connected with rope 6；By adjustment seat 23 are arranged on base 22, and release fastening bolt can adjust the relative altitude between adjustment seat 23 and base 22；Thus complete The implementation of lifting seat 2.

Such as Fig. 2, Fig. 3, Fig. 4, the aluminium alloy plate in this example from 5 millimeters of thickness is used as plate body 121, and it is 50 to choose its width Millimeter, 1000 millimeters of length；From 250 millimeters of the length of fixing hole 122,7 millimeters of width, two are set using both ends, hole Threshold value 30 millimeter of the outer end apart from plate body 121；It is that two M6 meet the general of national standard from assembly pulley mounting hole 123 Logical tapped through hole, it is symmetrical with the length center line of plate body 121；Two pitchs of holes and the installing hole distance on pulley base 52 from identical, In order to adapt to the regulation of long range, reinforcement can be installed additional in the side of plate body 121, to increase the rigidity of plate body 121；It is thus complete Into the implementation of connecting plate 12；U-shaped aluminium alloy extrusions, 5 millimeters of its wall thickness, 30 millimeters of U-shaped opening width, entirety are selected in this example 25 millimeters of depth of section, as montant 112, for its U-type groove as guide groove 111, such selection is easy, makes simple；In this example From two montants 112, the opening direction of its guide groove 111 is identical, from the identical material of montant 112, as cross bar 113,600 millimeters of intercepted length, by its it is U-shaped Open Side Down, both ends are selected respectively in two vertical weldings of montant 112, this example With multiple cross bars 113, the distance between each two cross bar 113 is 400 millimeters, is evenly distributed on the whole length of montant 112, so The kind of material is reduced, saves manufacturing cost, convenient buying；From top plate 114 and the identical material of connecting plate 12, knot in this example Structure and size, the fixing hole 122 on connecting plate 12 are used as connecting hole 115, so convenient manufacture, reduction part kind, by one Side is identical with the concordant both ends extension elongation of the backside of the U-shaped opening of montant 112 with the firm welding of montant 112, thus complete Into the implementation of cat ladder 11；Two cat ladders 11 are selected in this example, two connecting plates 12, two cat ladders 11 are led in montant 112 It is relative to the side of groove 111, by the fixing hole 122 on two connecting plates 12 respectively with the connecting hole on the upper plate 114 of cat ladder 11 115 are connected by screw bolts, and just complete the implementation of support 1；So have it is light, it is quick detachable, can be according to the filter core changed Size adjusting bracket 1 opening distance, the features such as adaptability is stronger.

Such as Fig. 1, after support 1 is combined, lifting seat 2 is arranged on to the inner space of support 1, by leading on lifting seat 2 Combined and be placed in guide groove 111 with the guide groove 111 on the montant 112 of the cat ladder 11 on support 1 to wheel 21, can Moved up and down on support 1 along support 1, its both sides connects respectively at the end of rope 6, can be under the drive of elevating mechanism 4 Moved along a straight line along inside support 1；Handle 3 is arranged on to one end of elevating mechanism 4, is fixed and connected using bolt and elevating mechanism 4 Connect, elevating mechanism 4 can be driven to rotate and stop；Elevating mechanism 4 is arranged on support 1, is fixedly connected with support 1, it connects Connecting bolt is unclamped at the place of connecing can adjust setting height(from bottom) position of the elevating mechanism 4 on support 1；Elevating mechanism 4 and rope 6 are connected Connect, rope 6 can be driven to wind or discharge；Assembly pulley 5 is arranged on support 1, positioned at the lower section of the connecting plate 12 of support 1, with Support 1 is fixed and is detachably connected, and rope 6 is wrapped on pulley 51；There are two from assembly pulley 5, be symmetrically mounted on the top of support 1 Both sides；The steel wire rope of 4 millimeters of diameter is selected to be knotted as rope 6 in the end of rope 6, the diameter that it knots is big in this example In 12 millimeters, rope one end is stayed in outside rope sheave groove from the rope fastening hole on the rope sheave of elevating mechanism 4 through its knotting one end Portion, the other end coil through the pulley groove of assembly pulley 5 from the open pore Snap joint on the bottom plate 221 on lifting seat 2, middle part It is interior；Rope is flexible rope, can also choose braided fiber rope or anchor chain, this completes a kind of central air-conditioning filter core more Change the implementation of instrument.

Using when, the present invention is so easy to carry and transport in breaking state, and the present invention is transported to job site, Corresponding width is combined into according to the size of the filter core to be changed, and adjusts the installation position of lifting seat 2 and elevating mechanism 4 To put, lifting seat 2 to filter core installation place, swinging handle 3, is risen to filter core position by operating personnel from cat ladder 11, and with Filter core is contacted, and by the backswing of crank 34 of handle 3, this crank 34 can be contacted with deck 41, so as to prevent rope sheave from reversing, caused Lifting seat 2 falls automatically causes that the work for holding up filter core can not be realized, pulls down filter core retaining element, crank 34 is moved back into raw bits Put, swinging handle 3, elevating mechanism 4 is reversed, so that lifting seat 2 declines, can be removed until falling on personnel under filter core on ground The position arrived, by the backswing again of the crank of handle 3, locking elevating mechanism 4 will not produce rotation, and operating personnel are by old filter Core is removed, it would be desirable to which the new filter core of replacing is put into the top pallet of lifting seat 2, is moved crank 34, rotational handle 3, is made lifting Seat 2 rises, and until new filter core arrival installation site, moves crank 34 and locks elevating mechanism 4, new filter core is fixed, moves crank 34, elevating mechanism 4 is unlocked, ground is arrived under operating personnel, elevating mechanism 4 is pulled down, while lifting seat 2 is pulled down, rope 6 is twined It is wound on the rope sheave of elevating mechanism 4, takes connecting plate 12 apart, support 1 is split, just completes a working cycles；This ensure that Filter core safety, reduces operating personnel, alleviates the labor intensity of operating personnel, carries and easy to operate, improves filter core more Change efficiency and quality.

Claims (6)

1. a kind of central air-conditioning filter element replacing instrument, including support, lifting seat, handle, elevating mechanism, pulley assembly, rope；Institute The lifting seat stated includes directive wheel, base, adjustment seat；It is characterized in that：Described base includes bottom plate, column, directive wheel peace Fill hole, rope mount hole；Described base includes bottom plate, column, directive wheel mounting hole, rope mount hole；Described bottom plate is set Put in column lower end, be aluminum alloy thin wallboard with uprights vertical；Described column is arranged on the geometric center of base plate plane, with Bottom plate is vertical；Described directive wheel mounting hole is arranged on the both sides of the edge of bottom plate；Described mounting hole site is in two groups of the same side It is located along the same line, and both sides are parallel to each other；Described rope mount hole is arranged on bottom plate, positioned at column both sides, with leading To the middle part of side where wheel mounting hole.

A kind of 2. central air-conditioning filter element replacing instrument according to claim 1, it is characterised in that：The bottom of described lifting seat The column of seat is aluminum alloy hollow tubulose.

A kind of 3. central air-conditioning filter element replacing instrument according to claim 2, it is characterised in that：Set outside described column Fixed bolt hole is equipped with, described fixed bolt hole runs through the wall thickness of column.

A kind of 4. central air-conditioning filter element replacing instrument according to claim 2, it is characterised in that：Set inside described column Internal thread is equipped with, its specification and size match with the external screw thread on the adjustable column in adjustment seat.

A kind of 5. central air-conditioning filter element replacing instrument according to claim 1, it is characterised in that：The bottom of described lifting seat The directive wheel mounting hole of seat shares 4 groups, and every group two, its hole is screwed hole.

A kind of 6. central air-conditioning filter element replacing instrument according to claim 5, it is characterised in that：Described screwed hole it is straight Footpath matches with the installation hole width on directive wheel, and every group of two screwed holes are smaller than the length of the mounting hole on directive wheel.