CN112325352A - Lifting device - Google Patents

Abstract

The invention discloses a lifting device, which is a lifting device for dismounting and mounting a purification electric field, and consists of a bracket, an upright post, a first driving wheel, a second driving wheel, a first driving chain and a lifting platform, wherein the lifting platform connected to the first driving chain is lifted because a driving assembly drives the first driving wheel to rotate; when carrying out the dismouting to petticoat pipe formula oil smoke clarifier's purification unit, arrange this for the dismouting elevating gear of electric field of purifying in petticoat pipe formula oil smoke clarifier's below, utilize lift platform to realize the lift of purification unit, realize the support to purification unit. The buckle is fixed on the two stand columns, the quick locking pieces arranged on the other two stand columns are buckled on the hanging rings on the bottom surface of the purifying box when in use, the quick locking pieces are buckled with the long strip-shaped buckling grooves of the bottom surface of the purifying box, the quick installation of the special dismounting tool on the bottom surface of the smoke hood type oil smoke purifier is realized, and the quick positioning is realized.

Description

Lifting device

Technical Field

The invention relates to the field of air purification equipment, in particular to a lifting device.

Background

Petticoat pipe formula oil smoke clarifier is used for the oil smoke purification of food and beverage trade, and it is installed in the top of a kitchen range, and the flue gas gets into petticoat pipe formula oil smoke clarifier inside and purifies under the effect of the fan of rising in-process in petticoat pipe formula oil smoke clarifier for the flue gas reaches emission standard. Wherein, petticoat pipe formula oil smoke clarifier's the essential element that realizes purification performance is for installing the purification unit in the casing inside, and it purifies the flue gas through modes such as filtration, absorption, and uses a period of time after, and purification unit is inside can be stained with greasy dirt and smoke and dust, influences purification efficiency, consequently needs often to wash.

The casing of current petticoat pipe formula oil smoke clarifier is fixed on the wall, and purification unit fixes inside the casing, when changing or wasing purification unit, needs to dismantle holistic petticoat pipe formula oil smoke clarifier get off and change, perhaps takes purification unit out from the front of casing and changes, because purification unit is heavier, and will move down certain height, it is very troublesome.

And when petticoat pipe formula oil smoke clarifier's purification unit sets up to carry out the dismouting from petticoat pipe formula oil smoke clarifier below, because purification unit has great gravity to because blocking of petticoat pipe, the workman is difficult to go to support purification unit with great strength, consequently, utilizes workman's strength can't hold purification unit, leads to purification unit can't carry out the dismouting from petticoat pipe formula oil smoke clarifier below.

It is seen that improvements and enhancements to the prior art are needed.

Disclosure of Invention

In view of the above disadvantages of the prior art, an object of the present invention is to provide a lifting device, which solves the problem of the prior art that the assembly and disassembly of the purifying unit is inconvenient.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a lifting device, includes the support and fixes the stand more than two on the support, and the stand lower extreme rotates and is connected with first drive wheel, and the stand upper end rotates and is connected with the second drive wheel, and is connected with first driving chain between first drive wheel and the second drive wheel, is fixed with lift platform on the first driving chain, and first driving wheel transmission is connected with drive assembly, and drive assembly fixes on the support.

In the lifting device, four upright posts are respectively fixed on four corners of the bracket.

The lifting device further comprises a first rotating shaft, two first driving wheels arranged on the same side of the lifting platform are connected to the same first rotating shaft, the two first rotating shafts are in transmission connection, and the driving assembly is connected to one end of one first rotating shaft.

In the lifting device, third driving wheels are fixed in the middle of the two first rotating shafts, a second rotating shaft is connected between the two third driving wheels, and fourth driving wheels meshed with the two third driving wheels are respectively fixed at two ends of the second rotating shaft.

Among the elevating gear, first connecting block and second connecting block of fixedly connected with respectively are equipped with adjusting screw between first connecting block and the second connecting block at first driving chain both ends, adjusting screw passes first connecting block and second connecting block threaded connection, lift platform connects on the second connecting block.

Among the elevating gear, be equipped with the pin between first connecting block and the second connecting block, the pin is fixed on the second connecting block, and the lower extreme sliding connection of pin is on first connecting block.

In the lifting device, the cross section of the upright post is C-shaped, and the first driving wheel, the second driving wheel and the driving chain are all arranged in the upright post.

In the lifting device, the first connecting block and the second connecting block are connected on the upright post in a sliding manner.

In the lifting device, two adjacent upright posts are fixed with retaining rings, and the other two upright posts are provided with quick locking pieces; the quick locking piece comprises a connecting rod, a first connecting seat and a second connecting seat, the first connecting seat and the second connecting seat are fixed on the side surface of the stand column, the second connecting seat is arranged above the first connecting seat, the connecting rod is vertically arranged and is connected to the first connecting seat and the second connecting seat in a sliding manner, a first limiting part is arranged below the first connecting seat by the connecting rod, and a second limiting part is arranged above the second connecting seat by the connecting rod; the distance between the first limiting piece and the second limiting piece is greater than the distance between the first connecting seat and the second connecting seat; the end part of the lower end of the connecting rod is fixedly connected with a handle.

In the lifting device, the connecting rod is further provided with a third limiting part between the first connecting seat and the second connecting seat, and an elastic part is sleeved between the third limiting part and the first connecting seat.

Has the advantages that:

1. the lifting device for dismounting and mounting the purification electric field is composed of a support, an upright post, a first driving wheel, a second driving wheel, a first driving chain and a lifting platform, and the lifting platform connected to the first driving chain is lifted due to the fact that the driving assembly drives the first driving wheel to rotate; when carrying out the dismouting to petticoat pipe formula oil smoke clarifier's purification unit, arrange this for the dismouting elevating gear of electric field of purifying in petticoat pipe formula oil smoke clarifier's below, utilize lift platform to realize the lift of purification unit, realize the support to purification unit.

2. The buckle is fixed on the two stand columns, the quick locking pieces arranged on the other two stand columns are buckled on the hanging rings on the bottom surface of the purifying box when in use, the quick locking pieces are buckled with the long strip-shaped buckling grooves of the bottom surface of the purifying box, the quick installation of the special dismounting tool on the bottom surface of the smoke hood type oil smoke purifier is realized, and the quick positioning is realized.

3. The quick locking piece comprises a connecting rod, a first connecting seat and a second connecting seat, the first connecting seat and the second connecting seat are fixed on the side face of the frame, the second connecting seat is arranged above the first connecting seat, the connecting rod is vertically arranged and is connected to the first connecting seat and the second connecting seat in a sliding mode, a first limiting piece is arranged below the first connecting seat through the connecting rod, and a second limiting piece is arranged above the second connecting seat through the connecting rod; when the quick fixing device is used, the bolt is firstly buckled on the hanging ring on the bottom surface of the purifying box, so that the connecting rod is pushed to move upwards, the second limiting part is made to penetrate through the long-strip-shaped buckling groove, the connecting rod is further rotated, the second limiting part is made to be clamped on the long-strip-shaped buckling groove, and the first limiting part is abutted to the lower portion of the first connecting seat, so that the quick fixing of the special disassembling tool is realized.

Drawings

Fig. 1 is a perspective view of a hood-type oil fume purifier.

Fig. 2 is an exploded view of a smoke cage type smoke purifier.

Fig. 3 is an exploded view of the smoke cage type smoke purifier.

Fig. 4 is a bottom view of fig. 1.

Fig. 5 is a partial enlarged view of fig. 4 at a.

Fig. 6 is a schematic view of the structure of the connector.

Fig. 7 is a first structural diagram of an embodiment of the smoke hood type oil fume purifier.

Fig. 8 is a structural diagram of an embodiment of the smoke hood type oil fume purifier.

Fig. 9 is a first perspective view of the special attaching and detaching tool.

Fig. 10 is a schematic view of the structure of fig. 9 with the bracket and the upright removed.

Fig. 11 is a partial enlarged view of fig. 9 at B.

Fig. 12 is a second perspective view of the special attaching and detaching tool.

Fig. 13 is a first structural diagram of a laterally used thimble.

FIG. 14 is a front view of a first spike used laterally.

FIG. 15 is a second front view of the spike in use laterally.

Fig. 16 is a structural schematic diagram of a thimble used in the transverse direction.

Fig. 17 is a schematic view of a connection structure of the thimble and the cathode holder used in the transverse direction.

Description of the main element symbols: 1.1-purifying box, 1.2-smoke hood, 1.3-air outlet, 1.4-electric control box, 1.5-purifying unit, 1.51-anode base plate, 1.52-anode cylinder, 1.53-cathode frame, 1.6-connecting piece, 1.61-connecting piece, 1.62-ball, 1.63-clamping groove, 1.64-spring, 1.65-adjusting screw, 1.66-mounting sleeve, 1.67-handle, 1.7-through hole, 1.8-elongated buckling groove, 1.9-hanging ring, 1.10-baffle, 1.11-air inlet, 1.12-sealing plate;

2-thimble, 2.1-base, 2.2-elastic element, 2.3-thimble cap, 2.4-screw, 2.5-internal thread cover;

3.1-drive assembly, 3.2-support, 3.3-adjusting screw, 3.4-first connecting block, 3.5-second connecting block, 3.6-quick locking piece, 3.61-second limiting piece, 3.62-second connecting seat, 3.63-fourth limiting piece, 3.64-third limiting piece, 3.65-elastic piece, 3.66-first connecting seat, 3.67-first limiting piece, 3.7-cross bar, 3.68-handle, 3.69-connecting rod, 3.8-snap ring, 3.9-locating piece, 3.10-lifting platform, 3.11-second rotating shaft, 3.12-fourth driving wheel, 3.13-third driving wheel, 3.14-first rotating shaft, 3.15-first driving wheel, 3.16-first driving chain, 3.17-second rotating shaft, 3.18-upright post, 3.19-pin driving wheel.

Detailed Description

The present invention provides a lifting device, which will be described in further detail below with reference to the accompanying drawings and examples in order to make the objects, technical solutions and effects of the present invention clearer and clearer. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the scope of the invention.

Referring to fig. 1, 2, 3 and 4, a smoke hood type oil smoke purifier convenient for dismounting and mounting a purification unit comprises a purification box 1.1 and a smoke hood 1.2 fixed on the bottom surface of the purification box 1.1, wherein the purification box 1.1 is internally provided with the purification unit 1.5, a through hole 1.7 communicated with the smoke hood 1.2 is arranged below the purification box 1.5, the purification unit 1.5 penetrates through the through hole 1.7 from bottom to top and is arranged inside the purification box 1.1, the bottom surface of the purification box 1.1 is connected with a connecting piece 1.6 at the edge of the through hole 1.7, the purification unit 1.5 is fixed on the connecting piece 1.6, and the edge refers to the position of the bottom surface of the purification box 1.1 close to the through hole 1.7.

The top view area of the purification unit 1.5 is arranged inside the through hole 1.7, one end of the connecting piece 1.6 can rotate into the through hole 1.7, and the purification unit 1.5 of the connecting piece 1.6 is fixedly connected; the connecting piece 1.6 can also rotate to the position of the non-through hole 1.7, namely when the purifying unit 1.5 is disassembled and assembled, the connecting piece 1.6 is rotated to the position of the non-through hole 1.7, and then the purifying unit 1.5 can be pulled out downwards from the through hole 1.7.

In the structure, when the purifying unit 1.5 is disassembled, the special disassembling tool with the lifting structure is placed on the cooking bench or hung on the bottom surface of the purifying box 1.1, the lifting structure is driven to ascend, the lifting structure is supported on the bottom surface of the purifying unit 1.5, then the connecting piece 1.6 is rotated, the connecting piece 1.6 is moved away from the position of the through hole 1.7, then the lifting structure is driven to descend, the purifying unit 1.5 is drawn out from the lower part of the smoke hood 1.2, and the disassembling of the purifying unit 1.5 is completed. The steps are opposite when installing the purification unit 1.5, namely, the special dismounting tool with the lifting structure is arranged on the cooking bench or hung on the bottom surface of the purification box 1.1, the lifting structure is in the lowest state, the purification unit 1.5 is arranged on the lifting structure, then the lifting structure is driven to ascend, the purification unit 1.5 is inserted into the purification box 1.1 from the through hole 1.7, the connecting piece 1.6 is rotated, the purification unit 1.5 is arranged on the connecting piece 1.6, and the installation of the purification unit 1.5 is completed.

When carrying out the dismouting to purifying unit 1.5, owing to adopt specialized tool to dismantle from the below of petticoat pipe 1.2 machine, consequently need not carry out the manual work at the heavier purifying unit 1.5 of higher position contrast and move, only need manual control specialized tool's elevation structure's lift and rotation connecting piece 1.6, greatly reduced the intensity of workman's work for when wasing or changing the maintenance to petticoat pipe 1.2 machine, it is convenient more convenient.

In the above, when the purifying unit 1.5 is disassembled, the special disassembling tool passes through the inner part of the smoke hood 1.2. Therefore, the structures such as the water-stop plate and the oil-water separator which are arranged inside the smoke hood 1.2 are all installed in a detachable mode, so that the structure inside the smoke hood 1.2 is detached before the purification unit 1.5 is detached, and the disassembly and the assembly of the purification unit 1.5 are not influenced. Wherein, a fan used for driving the air to flow can be also detachably connected inside the smoke hood 1.2 or inside the purifying box 1.1.

The purifying unit 1.5 may be a filter screen, such as an activated carbon filter screen, or an electrostatic field.

Referring to fig. 5 and 6, the connecting member 1.6 includes a connecting piece 1.61, one end of the connecting piece 1.61 is rotatably connected with the bottom surface of the purifying box 1.1, and the other end is abutted against the bottom surface of the purifying unit 1.5. In practical applications, the purifying unit 1.5 can be connected with the connecting piece 1.61 through screws, so that the firmness degree of the connecting position is improved.

In a preferred embodiment, the connecting piece 1.6 further comprises a bead screw arranged on one side of the connecting piece 1.61, the bead screw comprises a mounting sleeve 1.66 vertically fixed on the bottom surface of the purifying box 1.1, a spring 1.64 arranged inside the mounting sleeve 1.66 and a ball 1.62, the ball 1.62 is arranged below the spring 1.64, a notch 1.63 is arranged on the connecting piece 1.61 corresponding to the position of the ball 1.62, and when the connecting piece 1.61 is in an abutting position with the purifying unit 1.5, the ball 1.62 is clamped in the notch 1.63. Wherein, ball 1.62 passes through one end of mounting sleeve 1.66 to set up the recess 1.63 with ball 1.62 complex, make ball 1.62 arrange in recess 1.63 back, if there is not the power of the direction of rotation of connecting piece 1.61, the position of connecting piece 1.61 is blocked and is realized fixing by ball 1.62. When the worker rotates the coupling piece 1.61 by an external force, the spring 1.64 contracts so that the ball 1.62 can move out of the recess 1.63. Therefore, when the purifying unit 1.5 is installed, the connecting piece 1.61 is manually rotated, one end of the connecting piece 1.61 is placed below the purifying unit 1.5, and additional fixing is not needed. Wherein, the recess 1.63 can be a pit, a through hole or a blind hole.

In a further preferred embodiment, the mounting sleeve 1.66 is provided with an adjusting screw 1.65 at the end remote from the ball 1.62, and the tightness of the spring 1.64 is adjusted by screwing the adjusting screw 1.65, so that the ball 1.62 has enough force to prevent the connecting piece 1.61 from rotating.

In practical application, in order to facilitate pulling the connecting piece 1.61, a handle 1.67 may be fixed to the bottom surface of the connecting piece 1.61.

In a preferred embodiment, the purifying unit 1.5 is an electrostatic field, the upper end of the purifying box 1.1 corresponding to the through hole 1.7 is provided with a thimble 2 connected with a cathode frame 1.53 of the electrostatic field, the front surface of the purifying box 1.1 is fixed with an electric cabinet 1.4, and the thimble 2 penetrates through the purifying box 1.1 and is connected with a power supply in the electric cabinet 1.4. After the electrostatic field is installed, the thimble 2 abuts against the cathode frame 1.53, so that the cathode frame 1.53 is connected with a power supply in the electric cabinet 1.4 through an electric wire.

Referring to fig. 8, in a preferred embodiment, the electrostatic field is arranged horizontally, a baffle 1.10 is fixed below the electrostatic field, the baffle 1.10 is connected with the connecting piece 1.6, and the baffle 1.10 abuts against the bottom surface of the purifying box 1.1. Namely, after the electrostatic field is installed, the through hole 1.7 is sealed by the baffle plate 1.10, so that smoke is prevented from passing through the through hole. In this embodiment, the electrostatic field may be a honeycomb field or a plate field. The electrostatic field arranges the middle part of purifying box 1.1 in, and the one end of purifying box 1.1 is equipped with air intake 1.11 with petticoat pipe 1.2 intercommunication, and the other end is equipped with air outlet 1.3 for inside the flue gas got into purifying box 1.1 from the one end of purifying box 1.1, and it discharges from the other end to say the purification electric field, realizes the purification to the flue gas.

Referring to fig. 1, 2, 3, 4 and 7, in a preferred embodiment, the electrostatic field is a honeycomb field, and the honeycomb field is vertically disposed, that is, the honeycomb field includes an anode cylinder 1.52, an anode substrate 1.51 connected to two ends of the anode cylinder 1.52, a cathode frame 1.53 fixed to the anode substrate 1.51 through an insulator, a cathode pin (not shown in the drawings) fixed to the cathode frame 1.53 and having one end inserted into the center of the anode cylinder 1.52, and a side plate 1.54 having two ends connected to the anode substrate 1.51. The electric cabinet is internally provided with a sealing plate 1.12, the side face of the honeycomb electric field is abutted against the sealing plate 1.12, and after the honeycomb electric field is installed, the honeycomb electric field is attached to the sealing plate 1.12 on the side plate. Namely, the anode substrate 1.51 arranged at the lower end of the honeycomb electric field is connected with the connecting piece 1.6, the edge of the anode substrate 1.51 connected with the connecting piece 1.6 is abutted against the bottom surface of the electric cabinet 1.4, the top surface of the purifying cabinet 1.1 is provided with an air outlet 1.3, and the lower end of the honeycomb electric field is directly communicated with the smoke hood 1.2.

Preferably, the upper end of the sealing plate 1.12 is provided with a folded edge, and the top surface of the anode substrate 1.51 at the upper end of the honeycomb electric field is abutted against the folded edge of the sealing plate 1.12, so as to realize the sealing between the honeycomb electric field and the sealing plate, and make all the gas to be purified pass through the honeycomb electric field.

In a preferred embodiment, there are two sets of electrostatic fields, and two through holes 1.7 are correspondingly formed on the bottom surface of the purifying box 1.1.

In a preferred embodiment, the folded edge of the upper end of the sealing plate 1.10 is provided with a sealing ring, which may be made of rubber or silica gel material, to ensure the sealing connection between the sealing plate and the honeycomb electric field. Because the sealing washer has certain contractility, consequently when carrying out the dismouting through specialized tool, can utilize elevation structure to promote the height of trace with purification unit 1.5, make things convenient for the rotation of connection piece 1.61.

The bottom surface of the purifying box 1.1 is provided with a lifting ring 1.9 for lifting special tools. The hanging ring 1.9 can also be fixed on one side of the through hole 1.7, the side opposite to the side where the hanging ring 1.9 is arranged is provided with a long-strip-shaped buckling groove 1.8, and when the hanging ring is used, a special tool is connected to the hanging ring 1.9 and the long-strip-shaped buckling groove 1.8. Preferably, the support of purifying box 1.1 adopts square pipe to make, and rectangular shape catching groove 1.8 establishes on square pipe, consequently sets up rectangular shape catching groove 1.8 back, and rectangular shape catching groove 1.8 also can not communicate with purifying box 1.1 inside.

Referring to fig. 13 and 16, in the above description, the thimble 2 includes a base 2.1, an elastic element 2.2, and a thimble cap 2.3, where the base 2.1, the elastic element 2.2, and the thimble cap 2.3 are all made of conductive materials, one end of the elastic element 2.2 is fixedly connected to one end surface of the base 2.1, the other end of the elastic element 2.2 is fixedly connected to the thimble cap 2.3, the elastic element 2.2 can be bent when a force is applied, and the elastic element 2.2 can be reset after the external force disappears, that is, the elastic element returns to a straightened state. Specifically, base 2.1 is used for being connected with air purification's power to it is fixed with the insulator, and the insulator is used for fixed power, avoids power and air purifier shell contact. The thimble cap 2.3 is adapted to abut the cathode holder and the elastic element 2.2 is adapted to connect the base 2.1 and the thimble cap 2.3, thereby achieving an electrical connection between the power supply and the cathode holder.

In practical applications, the elastic element 2.2 and the base 2.1, and the elastic element 2.2 and the thimble cap 2.3 may be connected in a rotating manner.

When the thimble 2 used transversely is used, the cathode frame abuts against the side surface of the thimble cap 2.3, the flexibility of the elastic element 2.2 can eliminate the distance error between the cathode frame and the power supply position, and the thimble cap 2.3 is better contacted with the cathode frame under the action of the restoring force of the elastic element 2.2.

In a preferred embodiment, the elastic element 2.2 is a spring.

In a preferred embodiment, the base 2.1 is sleeve-shaped, and the base 2.1 and the spring, and the thimble cap 2.3 and the spring are fixedly connected by a screw 2.4. Wherein, establish base 2.1 to the cover barrel-shaped, make things convenient for the installation of base 2.1 and spring coupling's screw 2.4, the nut end of screw 2.4 can be arranged in base 2.1 promptly, and the screw end of screw 2.4 stretches out in the base 2.1 outside and with spring threaded connection, realizes that base 2.1 is connected with screw 2.4 between the spring. The centre of the thimble cap 2.3 is provided with a central through hole, and a screw 2.4 passes through the central through hole and is connected with the spring.

Referring to fig. 14, in a preferred embodiment, the outer diameter of the screw 2.4 is matched with the inner diameter of the spring, that is, the thread of the screw 2.4 is matched with the inner wall of the spring, and since the inner wall of the spring is also in a thread shape, the screw 2.4 is fixedly connected with the spring by the threaded connection between the inner wall of the spring and the screw 2.4, no additional connecting part is required, and the connection is convenient.

Referring to fig. 15, in a preferred embodiment, the spring is fixed with an internally threaded sleeve 2.5 at both ends, and a screw 2.4 is fixed on the internally threaded sleeve 2.5. In this embodiment, the internal thread sleeve 2.5 is welded inside the spring, and the screw 2.4 is in threaded connection with the internal thread sleeve 2.5, so as to realize the fixed connection between the spring and the screw 2.4.

In a preferred embodiment, the pitch of the middle part of the spring is larger than the diameter of the formed spring wire, so that the spring has certain compression capacity, the thimble can be installed like the existing thimble, namely, after the thimble is installed, the spring is contracted by axial pressure, and the distance error between the cathode frame and the power supply position is eliminated.

In the above structure, the elastic element 2.2 can also be an elastic steel sheet, which means that the steel sheet has a certain bending capability, when the steel sheet is pressed, the steel sheet is bent to eliminate the distance error between the cathode frame and the power supply position, and the steel sheet can be restored to the straightening state after the pressure is eliminated.

Referring to fig. 16, in one embodiment, the thimble cap 2.3 is circular and has a plurality of small teeth uniformly distributed on its edge.

Referring to fig. 17, in an embodiment, in order to make the thimble cap 2.3 contact with the cathode holder better, the thimble cap 2.3 may be configured in a conical shape, and a plurality of small teeth are uniformly distributed on the edge thereof.

Referring to fig. 9 and 10, the lifting device comprises a support 3.2 and more than two upright posts 3.18 fixed on the support 3.2, wherein the lower ends of the upright posts 3.18 are rotatably connected with a first transmission wheel 3.15, the upper ends of the upright posts 3.18 are rotatably connected with a second transmission wheel 3.17, a first transmission chain 3.16 is connected between the first transmission wheel 3.15 and the second transmission wheel 3.17, a lifting platform 3.10 is fixed on the first transmission chain 3.16, the first transmission wheel 3.15 is in transmission connection with a driving assembly 3.1, and the driving assembly 3.1 is fixed on the support 3.2.

When the driving component 3.1 drives the first driving wheel 3.15 to rotate, the first driving chain 3.16 is driven to move, so that the first driving chain 3.16 drives the lifting platform 3.10 connected to the first driving chain to lift. Wherein, the driving component 3.1 can be a motor or a rotary cylinder, etc.

In a preferred embodiment, in order to balance the force of the support 3.2, the four posts 3.18 are preferably four, four being fixed to the four corners of the support 3.2, and four posts 3.18 are used as an example in the following. In practical applications, the number of the columns 3.18 can be two, three or more.

Specifically, the lifting device further comprises first rotating shafts 3.14, two first driving wheels 3.15 arranged on the same side of the lifting platform 3.10 are connected to the same first rotating shaft 3.14, the two first rotating shafts 3.14 are in transmission connection, and the driving assembly 3.1 is connected to one end of one first rotating shaft 3.14. Namely, four first driving wheels 3.15 are arranged on the four upright posts 3.18, wherein the lifting device is divided into two sides, the two first driving wheels 3.15 on each side are fixed on the same first rotating shaft 3.14, and the two first rotating shafts 3.14 are in transmission connection, so that when the driving assembly 3.1 drives one of the first rotating shafts 3.14 to rotate, all the first driving wheels 3.15 synchronously rotate, and the lifting platform 3.10 is stably lifted.

Wherein, the transmission connection between two first pivots 3.14 includes the following structure: third driving wheels 3.13 are fixed in the middle of the two first rotating shafts 3.14, a second rotating shaft 3.11 is connected between the two third driving wheels 3.13, and fourth driving wheels 3.12 meshed with the two third driving wheels 3.13 are respectively fixed at two ends of the second rotating shaft 3.11. The third transmission wheel 3.13 and the fourth transmission wheel 3.12 can be bevel gears or worm and gear structures.

In practical application, the two first rotating shafts 3.14 can also be driven by a chain, that is, a third driving wheel 3.13 is fixed in the middle of the two first rotating shafts 3.14, and a second driving chain is connected between the two third driving wheels 3.13, that is, the second driving chain replaces the structure formed by the second rotating shaft 3.11 and the fourth driving wheel 3.12.

In a preferred embodiment, a first connecting block 3.4 and a second connecting block 3.5 are fixedly connected to two ends of the first transmission chain 3.16 respectively, an adjusting screw 3.3 is arranged between the first connecting block 3.4 and the second connecting block 3.5, the adjusting screw 3.3 penetrates through the first connecting block 3.4 to be in threaded connection with the second connecting block 3.5, and the lifting platform 3.10 is connected to the second connecting block 3.5.

In the foregoing, a certain distance is left between the first connecting block 3.4 and the second connecting block 3.5, so that the distance between the first connecting block 3.4 and the second connecting block 3.5 can be adjusted by the adjusting screw 3.31.65, and the tightness degree of the first transmission chain 3.16 can be adjusted.

In a preferred embodiment, a pin 3.19 is arranged between the first connecting block 3.4 and the second connecting block 3.5, the pin 3.19 is fixed on the second connecting block 3.5, and the lower end of the pin 3.19 is slidably connected on the first connecting block 3.4. Through the setting of pin 3.19 for can only use an adjusting screw 3.31.65 between first connecting block 3.4 and the second connecting block 3.5, conveniently adjust the distance between first connecting block 3.4 and the second connecting block 3.5, can avoid first connecting block 3.4 and second connecting block 3.5 to rotate around adjusting screw 3.31.65 simultaneously, avoid the distance between first connecting block 3.4 and the second connecting block 3.5 grow in use promptly.

In a preferred embodiment, the cross section of the upright column 3.18 is C-shaped, that is, a sliding groove communicated with the outside is arranged on the side surface of the upright column 3.18, the first driving wheel 3.15, the second driving wheel 3.17 and the driving chain are all arranged in the upright column 3.18, and the first connecting block 3.4 and the second connecting block 3.5 are slidably connected to the sliding groove of the upright column 3.18, so that the lifting platform 3.10 is more stable during lifting. In practical application, the upright post 3.18 can also be a square tube, a slide rail is arranged on the side surface of the upright post 3.18, and the first connecting block 3.4 and the second connecting block 3.5 are connected on the slide rail in a sliding manner.

Referring to fig. 9 and 11, when the lifting device is used for facilitating the assembly and disassembly of the purifying unit 1.5 of the hood-type oil fume purifier of the purifying unit, the two adjacent columns 3.18 are fixed with retaining rings 3.8, and the other two columns 3.18 are provided with quick locking pieces 3.6. When the rapid cleaning device is used, the retaining ring 3.8 is buckled on the hanging ring 1.9 on the bottom surface of the purifying box 1.1, the rapid locking piece 3.6 is buckled with the long-strip-shaped buckling groove 1.8 on the bottom surface of the purifying box 1.1, the rapid installation of the special dismounting tool on the bottom surface of the smoke hood 1.2 machine is realized, and the positioning is realized.

The quick locking piece 3.6 comprises a connecting rod 3.69, a first connecting seat 3.66 and a second connecting seat 3.62, the first connecting seat 3.66 and the second connecting seat 3.62 are fixed on the side surface of the frame, the second connecting seat 3.62 is arranged above the first connecting seat 3.66, the connecting rod 3.69 is vertically arranged and is connected with the first connecting seat 3.66 and the second connecting seat 3.62 in a sliding manner, a first limiting piece 3.67 is arranged below the first connecting seat 3.66 of the connecting rod 3.69, and a second limiting piece 3.61 is arranged above the second connecting seat 3.62 of the connecting rod 3.69; the distance between the first limiting member 3.67 and the second limiting member 3.61 is greater than the distance between the first connecting seat 3.66 and the second connecting seat 3.62.

In the structure, when the special disassembly and assembly tool is used, the retaining ring 3.8 is firstly buckled on the hanging ring 1.9 on the bottom surface of the purifying box 1.1, the connecting rod 3.69 is further pushed to move upwards, the second limiting part 3.61 penetrates through the long-strip-shaped buckling groove 1.8, the connecting rod 3.69 is further rotated, the second limiting part 3.61 is clamped on the long-strip-shaped buckling groove 1.8, and the first limiting part 3.67 is abutted to the lower part of the first connecting seat 3.66, so that the special disassembly and assembly tool is fixed. Then, the lifting structure is driven to support the purifying unit 1.5 and to realize the disassembling and assembling work of the purifying unit 1.5.

In the foregoing, the second limiting member 3.61 is disposed in cooperation with the position of the elongated catching groove 1.8, so that when the retaining ring 3.8 is fastened on the hanging ring 1.9 of the bottom surface of the purifying box 1.1 and the second limiting member 3.61 is clamped on the elongated catching groove 1.8, the fixing of the special disassembling tool is realized, and meanwhile, the positioning of the special disassembling tool relative to the smoke hood 1.2 is realized.

In a preferred embodiment, the connecting rod 3.69 further has a third limiting member 3.64 between the first connecting seat 3.66 and the second connecting seat 3.62, and the connecting rod 3.69 is sleeved with an elastic member 3.65 between the third limiting member 3.64 and the first connecting seat 3.66. The elastic part 3.65 is used for overcoming the gravity of the connecting rod 3.69 to enable the connecting rod to be in a rising state, and can be a compression spring, namely when the elastic part is used, only the second limiting part 3.61 needs to be rotated to the position where the elongated buckle groove 1.8 is configured, and the connecting rod 3.69 is jacked up under the action of the elastic part 3.65, so that the second limiting part 3.61 is automatically inserted into the elongated buckle groove 1.8, and a special dismounting tool is more conveniently and quickly fixed on the smoke hood 1.2 machine.

In a preferred embodiment, the connecting rod 3.69 is further provided with a fourth limiting member 3.63 between the first connecting seat 3.66 and the second connecting seat 3.62 and above the third limiting member 3.64, and a distance between the fourth limiting member 3.63 and the first limiting member 3.67 is equal to a distance between the first connecting seat 3.66 and the second connecting seat 3.62. After the special assembly and disassembly tool is fixed on the smoke hood 1.2 machine, the first limiting piece 3.67 is abutted below the first connecting seat 3.66, and meanwhile, the fourth limiting piece 3.63 is also abutted below the second connecting seat 3.62, so that the stress of the first limiting piece 3.67 is reduced.

In a preferred embodiment, the first limiting member 3.67, the third limiting member 3.64 and the fourth limiting member 3.63 are circular rings welded on the connecting rod 3.69, and the second limiting member 3.61 is a pin transversely arranged and fixed on the upper end of the connecting rod 3.69.

In a preferred embodiment, the first limiting member 3.67, the second limiting member 3.61, the third limiting member 3.64 and the fourth limiting member 3.63 are laterally arranged pins, and the pins are fixedly connected to the connecting rod 3.69.

In a preferred embodiment, a handle 3.68 is fixedly connected to the lower end of the connecting rod 3.69 for facilitating the rotation of the connecting rod 3.69.

Referring to fig. 9, preferably, the top surface of the lifting platform 3.10 is provided with a positioning element 3.9, the positioning element 3.9 may be a positioning column, and the bottom surface of the purifying unit 1.5 is provided with a positioning groove matched with the positioning column, and when in use, the positioning column is inserted into the positioning groove. Preferably, the positioning post is conical in shape to facilitate the matching of the positioning post and the positioning groove.

Referring to fig. 12, the positioning element 3.6 may also be a positioning block, which is fitted to the side of the purification unit 1.5. In this embodiment, the lifting platform 3.10 has an area in the top view that is smaller than the area of the purification unit 1.5, so that the connection between the connecting piece and the purification unit 1.5 is not affected.

In practical application, in order to improve the stability of the upright columns, the upper ends of the upright columns are provided with the cross rods 3.7, and the cross rods 3.7 are fixedly connected with the upper ends of the two adjacent upright columns.

A method for assembling and disassembling a purification unit of the hood-type oil fume purifier comprises the following steps:

when the purification unit is installed: fixing a special disassembling tool on the bottom surface of a purification box of the smoke hood type oil smoke purifier; lowering the lifting platform on the special disassembling tool to the lowest position, and rotating the connecting piece to the outer side of the through hole; placing the purification unit on a lifting platform; driving the lifting platform to ascend, so that the purification unit passes through the through hole and is arranged in the purification box; rotating the connecting piece to enable one end of the connecting piece to be abutted against the bottom surface of the purification unit; the lifting platform is driven to descend, and the special dismounting tool is dismounted from the bottom surface of the purifying box of the smoke hood type oil smoke purifier to complete the installation of the purifying unit.

When the purification unit is disassembled: fixing a special disassembling tool on the bottom surface of a purification box of the smoke hood type oil smoke purifier; the lifting platform is driven to ascend and abut against the bottom surface of the purification unit; rotating the connecting piece to the outer side of the through hole; driving the lifting structure to descend so that the purification unit is drawn out of the through hole; driving the lifting platform to descend to the lowest position, and taking the purifying unit off the lifting platform; the special dismounting tool is dismounted from the bottom surface of the purifying box of the hood-type oil fume purifier to finish the dismounting of the purifying unit.

In the invention, the lifting device for dismounting and mounting the purification electric field is composed of a bracket 3.2, an upright post 3.18, a first driving wheel 3.15, a second driving wheel 3.17, a first driving chain 3.16 and a lifting platform 3.10, and the lifting platform 3.10 connected to the first driving chain 3.16 is lifted because the driving component 3.1 drives the first driving wheel 3.15 to rotate; when the purification unit 1.5 of the smoke hood 1.2 machine is disassembled and assembled, the lifting device for disassembling and assembling the purification electric field is arranged below the smoke hood 1.2 machine, the lifting platform 3.10 is utilized to realize the lifting of the purification unit, and the purification unit 1.5 is supported.

The retaining rings 3.8 are fixed on the two upright posts 3.18, the quick locking pieces 3.6 are arranged on the other two upright posts 3.18, when the rapid smoke exhaust ventilator is used, the retaining rings 3.8 are buckled on the hanging rings 1.9 on the bottom surface of the purifying box 1.1, the quick locking pieces 3.6 are buckled with the long strip-shaped buckling grooves 1.8 on the bottom surface of the purifying box 1.1, the rapid installation of the special dismounting tool on the bottom surface of the smoke hood 1.2 machine is realized, and the rapid positioning is realized.

The quick locking piece 3.6 comprises a connecting rod 3.69, a first connecting seat 3.66 and a second connecting seat 3.62, the first connecting seat 3.66 and the second connecting seat 3.62 are fixed on the side surface of the frame, the second connecting seat 3.62 is arranged above the first connecting seat 3.66, the connecting rod 3.69 is vertically arranged and is slidably connected to the first connecting seat 3.66 and the second connecting seat 3.62, a first limiting piece 3.67 is arranged below the first connecting seat 3.66 of the connecting rod 3.69, and a second limiting piece 3.61 is arranged above the second connecting seat 3.62 of the connecting rod 3.69; when the quick fixing device is used, the bolt is firstly buckled on the hanging ring 1.9 on the bottom surface of the purifying box 1.1, the connecting rod 3.69 is further pushed to move upwards, the second limiting part 3.61 penetrates through the long-strip-shaped buckling groove 1.8, the connecting rod 3.69 is further rotated, the second limiting part 3.61 is clamped on the long-strip-shaped buckling groove 1.8, the first limiting part 3.67 is abutted to the lower part of the first connecting seat 3.66, and therefore the quick fixing of the special disassembling tool is achieved.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other suitable relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

It should be understood that equivalents and modifications of the technical solution and inventive concept thereof may occur to those skilled in the art, and all such modifications and alterations should fall within the protective scope of the present invention.

Claims (10)

1. The utility model provides a lifting device, its characterized in that includes support (3.2) and fixes two or more stand (3.18) on support (3.2), stand (3.18) lower extreme rotates and is connected with first drive wheel (3.15), stand (3.18) upper end rotates and is connected with second drive wheel (3.17), and be connected with first driving chain (3.16) between first drive wheel (3.15) and second drive wheel (3.17), be fixed with lift platform (3.10) on first driving chain (3.16), first drive wheel (3.15) transmission is connected with drive assembly (3.1), drive assembly (3.1) are fixed on support (3.2).

2. Lifting device according to claim 1, characterised in that the number of uprights (3.18) is four, four being fixed to the four corners of the support (3.2).

3. The lifting device as claimed in claim 2, characterized by further comprising first rotating shafts (3.14), wherein the two first driving wheels (3.15) arranged on the same side of the lifting platform (3.10) are connected to the same first rotating shaft (3.14), the two first rotating shafts (3.14) are in driving connection, and the driving assembly (3.1) is connected to one end of one of the first rotating shafts (3.14).

4. A lifting device as claimed in claim 3, characterized in that a third transmission wheel (3.13) is fixed in the middle of the two first rotating shafts (3.14), a second rotating shaft (3.11) is connected between the two third transmission wheels (3.13), and a fourth transmission wheel (3.12) meshed with the two third transmission wheels (3.13) is respectively fixed at both ends of the second rotating shaft (3.11).

5. The lifting device as claimed in claim 1, characterized in that a first connecting block (3.4) and a second connecting block (3.5) are fixedly connected to both ends of the first transmission chain (3.16), respectively, an adjusting screw (3.3) is arranged between the first connecting block (3.4) and the second connecting block (3.5), the adjusting screw (3.3) penetrates through the first connecting block (3.4) to be in threaded connection with the second connecting block (3.5), and the lifting platform (3.10) is connected to the second connecting block (3.5).

6. Lifting device according to claim 5, characterised in that a pin (3.19) is arranged between the first (3.4) and second (3.5) connecting blocks, that the pin (3.19) is fixed to the second connecting block (3.5) and that the lower end of the pin (3.19) is slidably connected to the first connecting block (3.4).

7. Lifting device according to claim 6, characterised in that the column (3.18) is C-shaped in cross-section and that the first transmission wheel (3.15), the second transmission wheel (3.17) and the transmission chain are placed inside the column (3.18).

8. Lifting device according to claim 7, characterised in that the first (3.4) and second (3.5) connecting blocks are slidingly connected to the upright (3.18).

9. The lifting device according to claim 1, characterized in that the snap ring (3.8) is fixed on two adjacent columns (3.18), and the quick locking pieces (3.6) are arranged on the other two columns (3.18); the quick locking piece (3.6) comprises a connecting rod (3.69), a first connecting seat (3.66) and a second connecting seat (3.62), the first connecting seat (3.66) and the second connecting seat (3.62) are fixed on the side surface of the upright post (3.18), the second connecting seat (3.62) is arranged above the first connecting seat (3.66), the connecting rod (3.69) is vertically arranged and is slidably connected to the first connecting seat (3.66) and the second connecting seat (3.62), a first limiting piece (3.67) is arranged below the first connecting seat (3.66) of the connecting rod (3.69), and a second limiting piece (3.61) is arranged above the second connecting seat (3.62) of the connecting rod (3.69); the distance between the first limiting piece (3.67) and the second limiting piece (3.61) is greater than the distance between the first connecting seat (3.66) and the second connecting seat (3.62); the end part of the lower end of the connecting rod (3.69) is fixedly connected with a handle (3.68).

10. The lifting device according to claim 9, characterized in that the connecting rod (3.69) is further provided with a third limiting member (3.64) between the first connecting seat (3.66) and the second connecting seat (3.62), and the connecting rod (3.69) is sleeved with an elastic member (3.65) between the third limiting member (3.64) and the first connecting seat (3.66).

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