CN218001736U - Fan module and split type cigarette machine - Google Patents

Abstract

The utility model provides a fan module and split type cigarette machine. The fan module includes: a fan box body; the fan box body is connected to the lower end of the telescopic frame; and the traction device comprises a stranded wire assembly and a traction cable wound on the stranded wire assembly, one of the free end of the traction cable and the stranded wire assembly is fixed on the fan box body, the other of the free end of the traction cable and the stranded wire assembly is fixed at the upper end of the expansion bracket or is used for being fixed on a fixed object positioned above the fan box body, and the stranded wire assembly can tighten and release the traction cable to lift the fan box body along the vertical direction. Like this, pass through draw gear lift in-process at the fan box, the expansion bracket can improve the stability of fan box motion, improves the security. When the fan in the fan box body works, the telescopic frame can reduce the shaking of the fan box body, so that the influence of the shaking on the work of the fan is reduced.

Description

Fan module and split type cigarette machine

Technical Field

The utility model relates to a technical field of cigarette machine specifically, relates to a fan module and split type cigarette machine.

Background

The existing smoke machines are various, and a split type smoke machine gradually enters into families of people.

The split type smoke machine comprises an independent fan box body, the fan box body is mostly hoisted on a roof and is connected with the smoke collection module to form the split type smoke machine in a combined mode. Because the position of fan box installation is higher, so in order to make things convenient for to carry out installation, maintenance and routine maintenance to the fan box, be provided with draw gear mostly. Draw gear is including pulling the cable, and the hoist and mount of fan box are at the draw gear lower extreme, and the user can change the height of fan box through carrying to draw the cable. When the fan box is installed, maintained and maintained, the fan box can be lowered, and when the fan box is used normally, the fan box can be lifted.

But only through draw gear hoist and mount fan box, the fan box easily produces and rocks, and in the high in-process of regulation fan box, the motion of fan box is unstable, makes fan box skew or topple easily, causes the danger. In addition, only the draught fan box body is hoisted through the traction device, and when a draught fan in the draught fan box body works, the air exhaust effect of the draught fan can be influenced by the shaking of the draught fan box body.

SUMMERY OF THE UTILITY MODEL

In order to at least partially solve the problems existing in the prior art, according to an aspect of the present invention, a fan module is provided. The fan module is used for split type cigarette machine, and the fan module includes: a fan box body; the telescopic frame is telescopic along the vertical direction, and the fan box body is connected to the lower end of the telescopic frame; and the traction device comprises a stranded wire assembly and a traction cable wound on the stranded wire assembly, one of the free end of the traction cable and the stranded wire assembly is fixed on the fan box body, the other of the free end of the traction cable and the stranded wire assembly is fixed at the upper end of the expansion bracket or is used for being fixed on a fixed object positioned above the fan box body, and the stranded wire assembly can be tightened up and released to pull the cable to lift along the vertical direction of the fan box body.

Therefore, the embodiment of the utility model provides a fan module through setting up draw gear, can highly carry out lifting control at vertical direction to the fan box, can restrict the motion of fan box in other directions except vertical direction through the expansion bracket. Therefore, the fan box body can improve the stability of the fan box body through the telescopic frame and reduce the shaking of the fan box body. In the process that the fan box body is lifted through the traction device, the movement stability of the fan box body can be improved, and the safety is improved. When a fan in the fan box body works, the telescopic frame can reduce the shaking of the fan box body, so that the influence of the shaking on the working of the fan is reduced.

Illustratively, the stranded wire assembly is fixed on the fan box body, and the free end of the traction cable passes through the lower end of the expansion bracket and is connected to the upper end of the expansion bracket. Like this, can improve the integrated level of stranded conductor subassembly and fan box, prevent to pull cable winding to other places, improve the security.

Exemplarily, the fan module includes two sets of expansion brackets that set up along the horizontal direction interval, and the quantity of stranded conductor subassembly is one and sets up between two sets of expansion brackets, and the last winding of stranded conductor subassembly has two sets of cables that pull, and the free end of two sets of cables that pull is connected to the upper end of two sets of expansion brackets respectively. Therefore, the number of the stranded wire components can be reduced, the product cost is reduced, and the space occupied by the stranded wire components can be saved.

Illustratively, the free ends of the two sets of traction cables extend in opposite directions. Like this, to the stranded conductor subassembly, its both ends atress is balanced, when the stranded conductor subassembly tightens up the traction cable, two sets of traction cables can offset each other to the traction force of stranded conductor subassembly, and to the stranded conductor subassembly, the atress is balanced, can reduce the damage in the use.

Illustratively, the lower end of the telescopic frame is provided with a steering piece, and the middle section of the traction cable is wound around the steering piece and can slide along the outer peripheral surface of the steering piece. Therefore, the stranded wire assembly can be arranged at any position of the fan box body, and the flexibility of the installation position of the stranded wire assembly is improved.

Exemplarily, the traction cable outside the stranded wire assembly is located in a vertical plane, so that the pulling force of the traction cable on the fan box body does not generate a transverse component force, and the lifting efficiency of the traction cable is improved.

Illustratively, the steering component comprises a pulley, and the pulley is simple in structure and easy to implement.

Illustratively, the outer peripheral surface of the steering member is provided with a groove in which the traction cable is embedded. In this way, the groove can provide a positioning effect for the traction cable, preventing the traction cable from sliding out of the steering member.

Exemplarily, the stranded wire assembly comprises a wire coiling wheel and a driving motor, wherein a rotating shaft of the wire coiling wheel extends along the vertical direction, and the wire coiling wheel is connected with an output shaft of the driving motor. Like this, when drawing the cable winding on the wire wheel, the user can follow the wire wheel and observe the condition of drawing the cable winding all around, can conveniently overhaul.

Illustratively, the wire reel includes a wire reel shaft disposed in a vertical direction and a wire blocking plate connected to an upper end of the wire reel shaft, a diameter of the wire blocking plate being larger than a diameter of the wire reel shaft. The function of the wire blocking disc is to prevent the traction cable wound on the wire winding shaft from slipping off the wire winding shaft.

Exemplarily, a first gear is arranged on the wire blocking disc, a second gear is arranged on an output shaft of the driving motor, the first gear is meshed with the second gear, and the number of teeth of the first gear is more than that of the second gear. The gear on the wire blocking disc can reduce the high rotating speed of the driving motor to the low rotating speed required by the wire coiling wheel, and meanwhile, the small torque of the driving motor can be converted into the large torque of the wire coiling wheel. When the height of the fan box body is adjusted, the fan box body can be more fine and slow, the stability of the fan box body during lifting is improved, the power of the driving motor can be reduced, the size of the driving motor is reduced, the wire blocking disc is enabled to have the effect of the speed reducing device, and the integration level of the stranded wire assembly is improved.

Illustratively, the telescoping mast comprises: a pair of fixing frames arranged at intervals along the vertical direction; and a plurality of scissors units sequentially hinged between the pair of fixing frames along the vertical direction. Therefore, the telescopic frame can play a role in stabilizing the fan box body when the fan box body is at any height.

Each scissor unit comprises a first movable piece and a second movable piece which are hinged to each other in the middle, and the plurality of scissor units comprise a pair of end scissor units which are hinged to a pair of fixed frames respectively; and each fixing frame comprises a fixed sliding rail extending along the horizontal direction, and a first sliding part and a second sliding part which are connected to the fixed sliding rail in a sliding manner, a first moving part and a second moving part of each end part scissor unit are respectively hinged to the corresponding first sliding part and the corresponding second sliding part of the fixing frame, the telescopic frame further comprises a positioning assembly, and two ends of the positioning assembly are respectively hinged to the fixing frame and the corresponding end part scissor unit. Therefore, the utility model provides an embodiment of fan module is provided with locating component and can plays stable effect to the expansion bracket in the expansion bracket. In the telescopic bracket with the shear fork unit in the prior art, after the shear fork unit extends along the vertical direction, the stability of the shear fork unit is reduced, and the fan box body connected below the telescopic bracket is easy to shake. And the telescopic frame provided with the positioning assembly can rotate towards the vertical direction along with the form change of the scissor unit when the scissor unit extends along the vertical direction. Like this, locating component just can form auxiliary stay for cutting between fork unit and the fixed slide rail in vertical direction, reduces to cut the fork unit because the condition that the overlength that stretches in vertical direction appears rocking. In addition, the positioning assembly, the fixed sliding rail hinged with the positioning assembly and the moving part hinged with the positioning assembly can form a triangular structure, so that the structural strength of the scissor unit can be improved. The shaking of the scissor unit is reduced, so that the stability of the fan box body in the lifting process is improved, the fan box body can be lifted stably, the safety is improved, and the use experience of a user is also improved. In the embodiment that the horizontal guide frame is provided with the pair of sliding parts, the telescopic frame can be fixed in the extending direction of the horizontal guide frame by arranging the positioning assembly, so that the telescopic frame is prevented from sliding on the horizontal guide frame at will, and the condition that a fan box body connected below the telescopic frame is inclined or even overturned is avoided.

Exemplarily, the top of fan box is provided with the opening that corresponds with the expansion bracket, and the lower extreme and the stranded conductor subassembly of expansion bracket all set up in the fan box, and the expansion bracket passes the opening. Like this, just can utilize the fan box to protect the stranded conductor subassembly, when the expansion bracket is the shrink state moreover, the expansion bracket can also be accomodate inside the fan box, prevents the invasion and attack of greasy dirt, and from the outward appearance, the fan box is also neater and tidier more

According to the utility model discloses a another aspect provides a split type cigarette machine, include: any of the fan modules above; and the air outlet of the smoke collecting module is connected with the air inlet of the fan module, the fan module and the smoke collecting module are arranged in a split manner, and the fan module is positioned above the smoke collecting module.

A series of concepts in a simplified form are introduced in the context of the present invention, which will be described in further detail in the detailed description section. The summary of the invention is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.

The advantages and features of the present invention are described in detail below with reference to the accompanying drawings.

Drawings

The following drawings of the present invention are used herein as part of the present invention for understanding the present invention. There are shown in the drawings, embodiments and descriptions thereof, which are used to explain the principles of the invention. In the drawings, there is shown in the drawings,

fig. 1 is a perspective view of a fan module according to an exemplary embodiment of the present invention;

FIG. 2 is a perspective view of the telescoping mast shown in FIG. 1;

fig. 3 is a front view of the wire stranding assembly shown in fig. 1; and

fig. 4-7 are exemplary diagrams of a lifting device in accordance with various exemplary embodiments of the present invention.

Wherein the figures include the following reference numerals:

1100. a fan box body; 1500. a telescoping device; 1510. a pair of fixed frames; 1511. an upper horizontal guide frame; 1512. a lower horizontal guide frame; 1513. fixing the slide rail; 1514. a first slider; 1515. a second slider; 1520. a telescopic frame; 1521. a scissor unit; 15211. an end scissor unit; 15212. a middle scissor unit; 15213. a middle hinge; 15214. a pair of movable members; 15214a, a first movable member; 15214b, a second movable member; 1522. a positioning assembly; 1522a, a first end; 1522b, a second end; 1610. a steering member; 1700. a traction device; 1710. a wire stranding assembly; 1711. a wire winding wheel; 17111. a reel shaft; 17112. a wire blocking disc; 1712. a drive motor; 1720. and pulling the cable.

Detailed Description

In the following description, numerous details are provided to provide a thorough understanding of the present invention. One skilled in the art, however, will understand that the following description illustrates only a preferred embodiment of the invention and that the invention may be practiced without one or more of these details. In addition, some technical features that are well known in the art are not described in detail in order to avoid obscuring the present invention.

According to an aspect of the present disclosure, a fan module 1000 is provided, as shown in fig. 1-6. The fan module 1000 may be used in a split type range hood.

The fan module 1000 may include a fan box 1100, a telescoping rack 1520, and a draft gear 1700.

The fan box 1100 can include any type of fan box 1100 that may be present in the future. A fan (not shown) may be disposed within the fan box 1100 for exhausting air.

The expansion bracket 1520 may be expandable and contractible in a vertical direction. The fan box 1100 may be connected to the lower end of the expansion bracket 1520. The expansion bracket 1520 includes any structure capable of expanding and contracting, for example, the expansion bracket 1520 may include a scissor unit or a telescopic rail, and the expansion bracket 1520 may further include an expansion cylinder structure such as an electric cylinder, an air cylinder or a hydraulic cylinder. In summary, the fan case 1100 can move up and down in a vertical direction following the lower end of the expansion bracket 1520. It should be noted that the expansion bracket 1520 may limit the movement of the fan box 1100 in the horizontal direction and may not have traction in the vertical direction with respect to the fan box 1100.

Traction device 1700 may include a stranded wire assembly 1710 and a traction cable 1720. Pull cable 1720 may be wound around strand assembly 1710. Stranded wire assembly 1710 may be used to lay down a pull cable 1720. One of the free end of the pull cable 1720 and the strand assembly 1710 may be secured to the fan case 1100, and the other of the free end of the pull cable 1720 and the strand assembly 1710 may be secured to the upper end of the telescoping shelf 1520 or for securing to a stationary object located above the fan case 1100. The stationary object may include any object above the fan box 1100, such as a stationary object like a roof. The cable assembly 1710 can tighten and release the pull cable 1720 to pull the fan box 1100 up and down in the vertical direction. In some embodiments, the strand assembly 1710 may be disposed on the roof at the top of the fan box 1100, and the free end of the pull cable 1720 may be connected to the fan box 1100. Stranded conductor subassembly 1710 pulls fan box 1100 rebound through tightening up to pulling the cable, and stranded conductor subassembly 1710 pulls the cable through the release, and under fan box 1100's dead weight, fan box 1100 can descend. In other embodiments, the cable assembly 1710 may also be disposed on the fan box 1100 and the free end of the pull cable 1720 may be secured to the roof, wherein the free end of the pull cable 1720 is disposed at the upper end of the expansion bracket 1520 as shown in fig. 2. The stranded wire assembly 1710 pulls the fan box body 1100 to ascend together with the stranded wire assembly 1710 through tightening the traction cable 1720, and the stranded wire assembly 1710 releases the traction cable 1720, so that the fan box body 1100 and the stranded wire assembly 1710 descend along with self weight. The type of strand assembly 1710 is not particularly limited. The stranding assembly may include a manual stranding machine, an electric stranding machine, or a hydraulic stranding machine. Rotation of the wire twisting machine may tighten or release the pull cable 1720. The pull cable 1720 may include, without limitation, a rope, a wire rope, or any cable that may be wound.

Therefore, the embodiment of the present invention provides a fan module 1000, which can control the height of the fan box 1100 in the vertical direction by setting the traction device 1700, and can limit the movement of the fan box 1100 in other directions except the vertical direction through the expansion bracket 1520. Thus, the fan box 1100 can improve the stability of the fan box 1100 through the expansion bracket 1520, and the shaking of the fan box 1100 is reduced. In the process that the fan box 1100 is lifted through the traction device, the movement stability of the fan box 1100 can be improved, and the safety is improved. When the fan inside the fan box 1100 works, the expansion bracket 1520 can reduce the shaking of the fan box 1100, thereby reducing the influence of the shaking on the work of the fan.

Illustratively, strand assembly 1710 may be secured to fan case 1100. The free end of the tow cable 1720 may be connected to the upper end of the telescoping rack 1520 through the lower end of the telescoping rack 1520. In some embodiments, the upper end of the expansion bracket 1520 may be used to secure to a roof and the lower end may be connected to the fan box 1100. The stranded wire assembly 1710 is fixed on the fan box 1100, and the integration level of the stranded wire assembly 1710 and the fan box 1100 can be improved. In embodiments where the telescoping boom 1520 includes a scissor unit, the pull cable 1720 may be threaded into the interior of the scissor unit, with the upper and lower ends of the scissor unit guiding the pull cable 1720. In embodiments where the telescoping boom 1520 includes a telescoping cylinder, the traction cable 1720 may be threaded into the telescoping cylinder, with the traction cable 1720 being guided by the telescoping cylinder. In this way, the traction cable 1720 can be prevented from being wound to another place, and safety can be improved.

For example, the fan module 1000 may include two sets of telescoping brackets 1520 spaced apart in a horizontal direction. The number of strand assemblies 1710 may be one, and the strand assemblies 1710 may be disposed between two sets of telescoping racks 1520. Twisted wire assembly 1710 may have two sets of pull cables 1720 wound thereon. The free ends of the two sets of tow cables 1720 may be connected to the upper ends of the two sets of telescoping racks 1520, respectively. By providing two sets of expansion brackets 1520, the load bearing of a single expansion bracket 1520 can be reduced, and in addition, the two sets of expansion brackets 1520 are arranged at intervals, so that the stability when the fan box 1100 is hoisted can be improved. With stranded conductor subassembly 1710 setting between two sets of expansion bracket 1520, can also conveniently utilize a stranded conductor subassembly 1710 to tighten up and release two sets of traction cables 1720 of wearing to establish in expansion bracket 1520, two sets of stranded conductor subassemblies 1710 can not cause the interference to two sets of traction cables 1720. Thus, the number of stranded wire components 1710 can be reduced, the product cost can be reduced, and the space occupied by the stranded wire components 1710 can be saved.

Illustratively, the free ends of the two sets of pull cables 1720 extend in opposite directions. In the embodiment shown in fig. 2, two sets of pull cables 1720 extend horizontally toward telescoping racks 1520 on both sides from a centrally disposed strand assembly 1710. Thus, for the stranded wire assembly 1710, the two ends of the stranded wire assembly 1710 are stressed in a balanced manner, when the stranded wire assembly 1710 tightens the traction cable 1720, the traction force of the two groups of traction cables 1720 on the stranded wire assembly 1710 can be mutually offset, and for the stranded wire assembly 1710, the stress is balanced, and the damage in the using process can be reduced.

Illustratively, the lower end of the expansion bracket 1520 may be provided with a steering member 1610. The midsection of the pull cable 1720 may pass around the diverter 1610 and may be slidable along the outer peripheral surface of the diverter 1610. The diverter 1610 may comprise any configuration of diverter such as a pulley or roller. In the embodiment shown in fig. 2, the free end of the tow cable 1720 may be attached to the upper end of a telescoping rack 1520, with the tow cable 1720 extending vertically downward to the lower end of the telescoping rack 1520 and instead extending horizontally through a steering 1610. The function of the diverter 1610 is to change the direction in which the traction cable 1720 extends. Therefore, the stranded wire assembly 1710 can be arranged at any position of the fan box 1100, and the flexibility of the installation position of the stranded wire assembly 1710 is improved.

Illustratively, the tow cable 1720 may be located in a vertical plane outside of the stranded wire assembly 1710, as shown in fig. 2, and the tow cable 1720 may have a horizontally extending section and a vertically extending section. The horizontally and vertically extending segments of the pull cables 1720 may lie in a vertical plane. Thus, a lateral component force is not generated in the pulling force of the pulling cable 1720 against the fan case 1100, and the efficiency of lifting the pulling cable 1720 is improved.

Illustratively, the diverter 1610 may include a pulley. The pulley has simple structure and is easy to realize.

Illustratively, the outer circumferential surface of the diverter 1610 may be provided with a groove. The tow cable 1720 may be embedded within the groove. In this way, the groove can provide a locating function for the pull cable 1720 to prevent the pull cable from sliding out of the diverter 1610.

For example, stranding assembly 1710 may include a capstan 1711 and a drive motor 1712. The rotating shaft of the wire wheel 1711 may extend in the vertical direction. The spiral wheel 1711 may be connected to an output shaft of a driving motor 1712. The wire coiling wheel 1711 can be a cylindrical straight cylinder, and the traction cable 1720 can be wound on the wire coiling wheel 1711. In the embodiment where the wire wheel 1711 is a cylindrical straight drum, the axis of the cylindrical straight drum is vertically disposed. In this way, when the traction cable 1720 is wound around the capstan 1711, the user can observe the winding of the traction cable 1720 from around the capstan 1711. On the other hand, if the axis of the wire coiling wheel 1711 is arranged along the horizontal direction, when the traction cable 1720 is wound on the wire coiling wheel 1711, a part of the traction cable 1720 is shielded by the top wall of the fan box 1100, and therefore the observation is inconvenient. Thus, the maintenance is convenient. The drive motor 1712 may include any motor now known or that may become available in the future. The capstan 1711 can be driven to rotate by the output shaft of the motor to tighten the traction cable 1720.

For example, as shown in fig. 3, the spiral wheel 1711 may include a spiral axis 17111 disposed in a vertical direction and a catch tray 17112 connected to an upper end of the spiral axis 17111. The diameter of the catch tray 17112 may be greater than the diameter of the tray spool 17111. The wire wheel 1711 may be generally "T" shaped as viewed perpendicular to the axis of the wire wheel 1711, with a wire retaining disc 17112 overlying the upper end of the wire shaft 17111. The purpose of the catch tray 17112 is to prevent the pull cable 1720 wound onto the spool 17111 from slipping off the spool 17111.

For example, the wire blocking disc 17112 may be provided with a first gear, and the output shaft of the driving motor 1712 may be provided with a second gear. The first gear is engaged with the second gear. The number of teeth of the first gear is greater than the number of teeth of the second gear. With this arrangement, the wire retaining disc 17112 also functions as a speed reducer on the basis of preventing the slipping-off of the traction cable 1720 wound around the disc spool 17111. The gear on the wire blocking disc 17112 can reduce the high rotation speed of the driving motor 1712 to the low rotation speed required by the wire coiling wheel 1711, and meanwhile, the small torque of the driving motor 1712 can be converted into the large torque of the wire coiling wheel 1711. When adjusting the height of fan box 1100 like this, can be more meticulous and slow, stability when improving fan box 1100 and going up and down, but also can reduce driving motor 1712's power, reduce driving motor 1712's size, also make the wire blocking disc 17112 have had decelerator's effect, improved stranded conductor subassembly 1710's integrated level.

Illustratively, the telescoping shelf 1520 may include a pair of fixed shelves 1510 and a plurality of scissor units 1521. A pair of mounts may be provided spaced apart in a vertical direction. A plurality of scissors units 1521 may be sequentially hinged between the pair of holders 1510 in a vertical direction. Each scissor unit 1521 is hinged in the middle. The scissor unit 1521 may be folded or unfolded in an "X" configuration. The scissor unit 1521 can be folded or unfolded along with the movement of the fan box 1100 in the vertical direction, so that the telescopic effect is achieved. Thus, the expansion bracket 1520 can function to stabilize the fan case 1100 at any height of the fan case 1100.

Illustratively, as shown in fig. 4, each scissor unit 1521 may include a first movable member 15214a and a second movable member 15214b hingedly connected to each other at a central portion thereof. The first 15214a and second 15214b members form a pair of movable members. The plurality of scissor units 1521 may include a pair of end scissor units 15211 that are respectively hinged to a pair of mounts 1510; and each of the holders may include a fixed slide rail 1513 extending in a horizontal direction and a first slider 1514 and a second slider 1515 slidably coupled to the fixed slide rail 1513. The first and second movable members of the end scissor unit 15211 may be hinged to the first and second slides 1514, 1515, respectively, of the corresponding stationary frame. The telescoping shelf 1520 may also include a positioning assembly 1522. The two ends of the positioning assembly 1522 may be hinged to the fixed frame 1510 and the corresponding end scissor unit 15211, respectively.

The pair of mounts 1510 may include an upper horizontal guide 1511 and a lower horizontal guide 1512. The upper horizontal guide 1511 may be used to secure to a roof and the lower horizontal guide 1512 may be connected to the fan box 1100. By adjusting the telescoping bracket 1520, the spacing between the pair of fixed brackets 1510 can be changed, thereby allowing the fan case 1100 to move in a vertical direction. Each horizontal guide may include a fixed rail 1513 and first 1514 and second 1515 slides slidably coupled to the fixed rail 1513. The fixed slide rail 1513, the first slider 1514 and the second slider 1515 may include any mutually adaptable structure, and are not particularly limited.

In the expansion bracket 1520, a plurality of scissor units 1521 may be included. Among the plurality of scissor units 1521, the scissor unit 1521 connected to the upper horizontal guide 1511 or the lower horizontal guide 1512 may be referred to as an end scissor unit 15211. Taking the end scissor unit 15211 connected to the lower horizontal guide frame 1512 as an example, the lower ends of the first movable member 15214a and the second movable member 15214b of the end scissor unit 15211 may be hinged to the first sliding member 1514 and the second sliding member 1515, respectively. When the first 1514 and second 1515 slides are moved toward each other, the expansion bracket 1520 is elongated in the vertical direction; when the first 1514 and second 1515 slides move in opposite directions, the expansion bracket 1520 shortens in the vertical direction. The manner of movement of the scissor unit 1521 is well known to those skilled in the art.

In the embodiment shown in FIG. 2, the first movable member 15214a is taken as an example. A sliding groove 15131 extending in the horizontal direction may be disposed on the fixed sliding rail 1513, two side walls of the sliding groove may be provided with a long guide hole 15132, an end portion of the first movable member 15214a may be inserted into the sliding groove 15131, and the first sliding member 1514 may be a protruding portion (not shown) disposed on both sides of the end portion of the first movable member 15214a and capable of protruding into the long guide hole 15132. The engagement of the long guide hole 15132 with the protrusion can provide a guide for the end of the first movable member 15214a to move in the horizontal direction, and the protrusion can also rotate in the long guide hole 15132. In the embodiment shown in fig. 4, taking the first movable member 15214a as an example, the first sliding member 1514 may also be a slider, which can slide along the fixed sliding rail 1513. The end of the first movable member 15214a may be hingedly attached to the slider. The user can reasonably select the connection mode of the pair of movable members 15214 and the pair of sliding members according to the actual use requirement.

In the embodiment shown in fig. 4, the positioning component 1522 may be a rod-shaped structure, one end of which may be hinged to the fixed slide rail 1513, and the other end of which may be hinged to any one of a pair of movable members 15214 in the end scissor unit 15211. The number of the positioning assemblies 1522 hinged on one end scissor unit 15211 can be one or more. When the number of the positioning members 1522 is one, it may be hinged to any one of a pair of movable members 15214 on any one of the end scissor units 15211, as shown in fig. 5. When the number of the positioning elements 1522 is multiple, each of the first movable element 15214a and the second movable element 15214b may be hinged with a positioning element 1522, as shown in fig. 4, 6 and 7. Of course, multiple positioning elements 1522 may be hingedly connected to either of the pair of movable members 15214. The ends of the positioning components 1522 hinged to the fixed slide 1513 may be hinged together at the same point, as shown in fig. 4 and 7, or hinged at multiple points, as shown in fig. 6. The hinged end of the positioning element 1522 on the movable member may be located at any position on the movable member. In a word, when the scissors unit 1521 extends in the vertical direction, the positioning component 1522, the fixed slide rail 1513 hinged to the positioning component, and the movable component hinged to the positioning component 1522 may form a triangular structure.

For convenience of description, the pair of fixed frames 1510 and the expansion frame 1520 will hereinafter be referred to collectively as the expansion device 1500.

Therefore, the utility model provides an embodiment of fan module is provided with locating component 1522 in expansion bracket 1520 and can play stable effect to expansion bracket 1520. In the conventional telescopic bracket 1520 having the scissors unit 1521, when the scissors unit 1521 is extended in the vertical direction, the stability of the scissors unit 1521 is lowered, and the fan case 1100 connected below the telescopic bracket 1520 is easily shaken. And the telescopic bracket 1520 provided with the positioning component 1522, when the scissors unit 1521 extends in the vertical direction, the positioning component 1522 will also rotate in the vertical direction along with the change of the form of the scissors unit 1521. Therefore, the positioning component 1522 can form an auxiliary support between the scissor unit 1521 and the fixed slide rail 1513 in the vertical direction, and the situation that the scissor unit 1521 shakes due to the overlong vertical extension is reduced. In addition, the positioning component 1522, the fixed slide rail 1513 hinged to the positioning component and the movable component hinged to the positioning component 1522 can form a triangular structure, so that the structural strength of the scissors unit 1521 can be improved. The sway of the scissor unit 1521 is reduced, so that the stability of the fan box 1100 in the lifting process is improved, the fan box 1100 can be lifted stably, the safety is improved, and the use experience of a user is also improved. In the embodiment where the horizontal guide frame 1510 is provided with a pair of sliding members, by providing the positioning component 1522, the expansion bracket 1520 can be fixed in the extending direction of the horizontal guide frame, so that the expansion bracket 1520 is prevented from sliding freely on the horizontal guide frame, and the situation that the fan box 1100 connected below the expansion bracket 1520 is inclined or even overturned is avoided.

Illustratively, the first end 1522a of the positioning assembly 1522 may be hinged to the horizontal guide frame at a first location. A second end of the positioning element 1522 may be hinged to a second location on the movable member of the corresponding end scissor unit 15211. Wherein the first position may be between a pair of slides of the horizontal guide. The second position can be between the middle hinge 15213 of the corresponding end scissor unit 15211 to the corresponding horizontal guide bracket 1510. As shown in fig. 4, the second end 1522b of the positioning element CD may be connected between the EFs of the movable elements EI. The positioning assembly 1522 with the arrangement can shorten the length of the positioning assembly 1522, reduce the material consumption of the positioning assembly 1522 and improve the integration level of the expansion bracket 1520. Of course, in other embodiments, the second end 1522b of the positioning component 1522 can also be hinged between the middle hinge 15213 of the corresponding end scissor unit 15211 and the hinges of the other scissor units 1521. As shown in fig. 5, the second end 1522B of the positioning element C 'D' may be connected between the F 'G' of the movable element B 'G'.

For example, the positioning component 1522, the movable member of the corresponding end scissor unit 15211 and the fixed slide rail 1513 of the corresponding horizontal guide frame may surround to form an isosceles triangle with the fixed slide rail as a base. As shown in fig. 4, the lower end scissors unit 15211 is connected to a positioning assembly 1522, which is a positioning assembly AC and a positioning assembly CD, wherein the two positioning assemblies, the respective movable members and the fixed slide rail form an isosceles triangle ABC and an isosceles triangle CDE. Wherein the two isosceles triangles also have the same vertex C. In the embodiment illustrated in fig. 6, the positioning assembly B "C" and the positioning assembly D "E" may then form an isosceles triangle a "B" C "and an isosceles triangle D" E "F". Taking the embodiment shown in fig. 4 as an example, with the telescopic device 1500 of this arrangement, the first sliding member 1514 or the second sliding member 1515 can move along the fixed rail 1513 to the hinge C between the positioning component 1522 and the fixed rail 1513, so that the telescopic frame 1520 can extend longer.

Of course, it will be appreciated that the hinge portions of the positioning assembly 1522 and the fixed track 1513 are not in the same plane as the slider, so that the hinge portion C does not interfere with the slider.

Illustratively, the first position is collinear with the middle hinges 15213 of the plurality of scissor units 1521, as exemplified in fig. 4 by hinge H, hinge F, and hinge C. Thus, when the scissors unit 1521 is extended or contracted, the middle hinge portions 15213 of the multiple scissors units 1521 will not be deviated, and the telescopic bracket 1520 will not move in the horizontal direction when extended or contracted. The stability of the fan case 1100 is improved when the retractor 1500 is used to move the fan case 1100, allowing the fan case 1100 to move along the collinear line.

Illustratively, a pair of positioning assemblies 1522 may be connected to the pair of movable members 15214 of each end scissor unit 15211 in a one-to-one correspondence, and the pair of positioning assemblies 1522 may be symmetrically disposed about a vertical centerline O-O of the pantograph 1520. As shown in FIG. 4, the positioning assembly AC and the positioning assembly CD are symmetrically disposed about the centerline O-O. As shown in FIG. 6, positioning assemblies B "C" and D "E" are symmetrically disposed about centerline O-O. Fig. 7 is also substantially the same as fig. 4 and 6, and will not be described again. Thus, on the basis of improving the stability of the positioning component 1522 to the scissor unit 1521, the length inconsistency of the respective positioning components 1522 on the two movable members can be avoided, so that when the expansion bracket 1520 expands and contracts, an included angle is generated between the upper horizontal guide frame 1511 and the lower horizontal guide frame 1512, and the fan box 1100 connected with the expansion device 1500 is inclined or even overturned.

Preferably, the pair of positioning assemblies 1522 can be attached to the same location on the corresponding horizontal guide frame, as shown in fig. 4, with the positioning assembly AC and the positioning assembly CD having the same hinge portion C. Thus, the number of hinge portions provided in the horizontal guide frame can be reduced, and the structure of the expansion bracket 1520 can be simplified.

For example, for a pair of movable members 15214 of each end scissor unit 15211, a first section L1 of the pair of movable members is hinged between the end portion of the corresponding horizontal guide frame and the middle hinge portion 15213 thereof, and a second section L2 of the pair of movable members is hinged between the end portion of the adjacent scissor unit and the middle hinge portion 15213 thereof, where the length of the first section L1 is greater than the length of the second section L2, as shown in fig. 4, as can be seen from comparison with fig. 7, on the premise that the number of scissor units 1521 is equal and the lifting distance of the pair of horizontal guide frames 1510 is equal, the length of the first section L1 is greater than the length of the second section L2, so that the distance between the pair of sliding members is increased, and the distance between the pair of sliding members is increased, the stability of the pair of sliding members to the scissor unit 1521 can be improved.

Illustratively, the length of the first segment L1 is twice the length of the second segment L2. The end of each positioning element 1522 may be hinged to the very middle of the first segment L1 of the corresponding movable member. That is to say, on the moving part BG, the hinges a and F can trisect the moving part BG. Thus, the structure of the expansion bracket 1520 can be simplified, the operation can be more flexible, and the possibility of jamming of the expansion bracket 1520 during expansion and contraction can be reduced.

Illustratively, the plurality of scissors units 1521 may further include a middle scissors unit 15212 hinged between a pair of end scissors units 15211. The length of the pair of movable members of the middle scissor unit 15212 is less than the length of the pair of movable members of the end scissor unit 15211. As shown in fig. 4, the intermediate scissor unit may be HJKIG. The length of the movable piece JG is smaller than that of the movable piece BG in the end scissor unit KBEIG. Thus, a pair of horizontal guides 1510, when stretched to the same distance, may provide more middle scissor units 15212 in the telescoping rack 1520 to increase the structural strength of the telescoping rack 1520.

Illustratively, the pair of movable members of the middle scissor unit 15212 is hinged at the middle, and the length of the pair of movable members of the middle scissor unit 15212 is equal to twice the length of the second segment L2. As shown in fig. 4, the length of the movable member JG is equal to twice the length of the FG. In this way, diamond FGHI is formed between the intermediate cross unit HIJKG and the end scissor units FBEIG. And the diamond FGHI causes hinge H and hinge F to approach to coincide when the slider is moved in the opposite direction, such that the diamond FGHI is fully compressed. Thus, the expansion bracket 1520 can be completely contracted, thereby reducing the space occupation.

Illustratively, the top of the fan box 1100 may be provided with an opening corresponding to the expansion bracket 1520. The lower end of telescoping rack 1520 and strand assembly 1710 may both be disposed within fan box 1100. The expansion bracket 1520 may pass through the opening. In this way, the fan box 1100 can be used to protect the cable assembly 1710, and when the expansion bracket 1520 is in a retracted state, the expansion bracket 1520 can be stored inside the fan box 1100 to prevent the invasion of oil stains, so that the fan box 1100 is cleaner and tidier in appearance.

According to another aspect of the present invention, there is provided a split type range hood, comprising any one of the fan modules 1000 and a smoke collection module (not shown) described above. The air outlet of the smoke collection module may be connected to the air inlet of the blower module 1000. The fan module 1000 and the smoke collection module may be separately provided. The fan module 1000 may be located above the smoke collection module. In some embodiments, the smoke collection module may comprise any type of smoke collection module that is or may become present in the future. The smoke collecting module can be arranged near the position of the cooker, and the smoke collecting module and the fan module 1000 can be communicated through a pipeline. The split type smoke machine with the arrangement can reduce the space occupancy rate, and the fan module 1000 can be far away from the position near the kitchen range, so that the noise felt by a user can be reduced. In addition, with any one of the fan modules 1000, a user can conveniently install, maintain or overhaul the fan module 1000.

In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front", "rear", "upper", "lower", "left", "right", "horizontal", "vertical", "horizontal" and "top", "bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner" and "outer" refer to the interior and exterior relative to the contours of the components themselves.

For ease of description, relative terms of regions such as "above … …", "above … …", "above … … upper surface", "above", etc. may be used herein to describe the regional positional relationship of one or more components or features to other components or features shown in the figures. It is to be understood that the relative terms of the regions are intended to encompass not only the orientation of the element as depicted in the figures, but also different orientations in use or operation. For example, if an element in the drawings is turned over in its entirety, the articles "over" or "on" other elements or features will include the articles "under" or "beneath" the other elements or features. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". Further, these components or features may also be positioned at various other angles (e.g., rotated 90 degrees or other angles), all of which are intended to be encompassed herein.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, elements, components, and/or combinations thereof, unless the context clearly indicates otherwise.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in other sequences than those illustrated or described herein.

The present invention has been described in terms of the above embodiments, but it is to be understood that the above embodiments are for purposes of illustration and description only and are not intended to limit the invention to the described embodiments. Furthermore, it will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that many variations and modifications may be made in accordance with the teachings of the present invention, all within the scope of the present invention as claimed. The scope of the present invention is defined by the appended claims and their equivalents.

Claims (13)

1. A fan module for a split range hood, the fan module comprising:

a fan box body;

the telescopic frame is telescopic along the vertical direction, and the fan box body is connected to the lower end of the telescopic frame; and

the traction device comprises a stranded wire assembly and a traction cable wound on the stranded wire assembly, one of the free end of the traction cable and the stranded wire assembly is fixed on the fan box body, the other of the free end of the traction cable and the stranded wire assembly is fixed at the upper end of the expansion bracket or is used for being fixed on a fixed object located above the fan box body, and the stranded wire assembly can be tightened and released to pull the traction cable to lift the fan box body along the vertical direction.

2. The fan module of claim 1, wherein the cable assembly is secured to the fan case, and a free end of the pull cable is connected to an upper end of the telescoping bracket through a lower end of the telescoping bracket.

3. The fan module of claim 2, wherein the fan module comprises two sets of expansion brackets arranged at intervals in the horizontal direction, the number of the stranded wire assemblies is one, the stranded wire assemblies are arranged between the two sets of expansion brackets, two sets of traction cables are wound on the stranded wire assemblies, and free ends of the two sets of traction cables are respectively connected to upper ends of the two sets of expansion brackets.

4. The fan module of claim 3, wherein the free ends of the two sets of pull cables extend in opposite directions.

5. The fan module of claim 2, wherein the lower end of the telescoping bracket is provided with a steering member, and the midsection of the pull cable passes around the steering member and is slidable along the outer peripheral surface of the steering member.

6. The fan module of claim 5,

the traction cable outside the stranded wire assembly is positioned in a vertical plane; and/or

The diverting member comprises a pulley; and/or

The peripheral face of the steering piece is provided with a groove, and the traction cable is embedded in the groove.

7. The fan module of claim 1, wherein the wire stranding assembly comprises a wire coiling wheel and a drive motor, a rotating shaft of the wire coiling wheel extends in a vertical direction, and the wire coiling wheel is connected with an output shaft of the drive motor.

8. The fan module of claim 7, wherein the wire take-up reel comprises a wire take-up shaft disposed in a vertical direction and a wire blocking disc connected to an upper end of the wire take-up shaft, the wire blocking disc having a diameter greater than a diameter of the wire take-up shaft.

9. The fan module according to claim 8, wherein a first gear is disposed on the wire blocking disc, a second gear is disposed on an output shaft of the driving motor, the first gear is engaged with the second gear, and the number of teeth of the first gear is greater than the number of teeth of the second gear.

10. The fan module of claim 1, wherein the expansion bracket comprises:

a pair of fixing frames arranged at intervals along the vertical direction; and

and the plurality of scissor units are sequentially hinged between the pair of fixing frames along the vertical direction.

11. The fan module of claim 10, wherein each scissor unit includes a first movable member and a second movable member that are hingedly coupled to each other at a mid-portion thereof, the plurality of scissor units including a pair of end scissor units that are hingedly coupled to the pair of mounts, respectively; each fixed frame comprises a fixed sliding rail extending along the horizontal direction, and a first sliding part and a second sliding part which are connected to the fixed sliding rail in a sliding manner, the first moving part and the second moving part of the end part scissor unit are respectively hinged to the first sliding part and the second sliding part of the corresponding fixed frame,

the telescopic frame further comprises a positioning assembly, and two ends of the positioning assembly are respectively hinged to the fixed frame and the corresponding end part scissor units.

12. The fan module of claim 2, wherein the top of the fan box body is provided with an opening corresponding to the expansion bracket, the lower end of the expansion bracket and the stranded wire assembly are both disposed within the fan box body, and the expansion bracket passes through the opening.

13. A split type cigarette machine, characterized by, includes:

the fan module of any of claims 1-12; and

the air outlet of the smoke collection module is connected with the air inlet of the fan module, the fan module and the smoke collection module are arranged in a split mode, and the fan module is located above the smoke collection module.

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