Engineering machine tool is used for granule dispensing equipment of road surface snow melt

文档序号:1901445 发布日期:2021-11-30 浏览:19次 中文

阅读说明:本技术 一种工程机械用于路面融雪的颗粒撒布设备 (Engineering machine tool is used for granule dispensing equipment of road surface snow melt ) 是由 张巍然 于 2021-09-09 设计创作,主要内容包括:本发明公开了一种工程机械用于路面融雪的颗粒撒布设备,包括车体、料箱、第一电机和第一液压伸缩杆,所述车体上设置有预留架,且预留架内侧面与料箱相连接,同时料箱设置在车体内,所述料箱下端的出料管与撒布管相连接,且料箱右侧设置有支撑架,同时支撑架设置在车体内,所述第一电机设置在支撑架内,且第一电机与第一转轴相连接。该工程机械用于路面融雪的颗粒撒布设备,在第五液压伸缩杆的作用下推动左侧的压板挤压右侧的压板,使得穿刺锥穿过袋装融雪剂,可对袋装融雪剂起到限位固定作用,可在第一液压伸缩杆作用下将袋装融雪剂拉升,通过第一电机、第一转轴带动转动架转动,将预留架上的袋装融雪剂转移到料箱上方进行上料补充。(The invention discloses particle spreading equipment for road snow melting by engineering machinery, which comprises a vehicle body, a material box, a first motor and a first hydraulic telescopic rod, wherein a reserved frame is arranged on the vehicle body, the inner side surface of the reserved frame is connected with the material box, the material box is arranged in the vehicle body, a discharge pipe at the lower end of the material box is connected with a spreading pipe, a support frame is arranged on the right side of the material box, the support frame is arranged in the vehicle body, the first motor is arranged in the support frame, and the first motor is connected with a first rotating shaft. This engineering machine tool is used for granule dispensing equipment of road surface snow melt, push the clamp plate on left clamp plate extrusion right side under fifth hydraulic telescoping rod's effect for the puncture awl passes the snow melt agent in bags, can play spacing fixed action to the snow melt agent in bags, can pull up the snow melt agent in bags under first hydraulic telescoping rod effect, through first motor, first pivot drive rotating turret rotates, the snow melt agent in bags that will reserve on the frame shifts to the workbin top and carries out the material loading and supply.)

1. The utility model provides an engineering machine tool is used for granule dispensing equipment of road surface snow melt, includes automobile body (1), workbin (3), first motor (6) and first hydraulic telescoping rod (9), its characterized in that:

a reserved frame (2) is arranged on the vehicle body (1), the inner side surface of the reserved frame (2) is connected with a material box (3), and the material box (3) is arranged in the vehicle body (1);

a discharge pipe at the lower end of the feed box (3) is connected with the spreading pipe (4), a support frame (5) is arranged on the right side of the feed box (3), and the support frame (5) is arranged in the vehicle body (1);

first motor (6) set up in support frame (5), and first motor (6) are connected with first pivot (7), and support frame (5) are run through to first pivot (7) upper end simultaneously and are connected with rotating turret (8).

2. A particle spreading device for road snow melting of construction machinery according to claim 1, wherein: the reserved frame (2) comprises a transmission belt device (201) and a rotating roller (202), the inner wall of the reserved frame (2) is connected with the transmission belt device (201) and the rotating roller (202) in a rotating mode, and the rotating roller (202) is arranged on the right side of the transmission belt device (201).

3. A particle spreading device for road snow melting of construction machinery according to claim 1, wherein: workbin (3) is including second hydraulic telescoping rod (301), apron (302), third hydraulic telescoping rod (303), flashboard (304), second motor (305), first bevel gear group (306), auger (307) and crushing roller (308), and workbin (3) upper end is provided with second hydraulic telescoping rod (301), and second hydraulic telescoping rod (301) right-hand member is connected with apron (302) simultaneously, be provided with third hydraulic telescoping rod (303) in workbin (3) bottom, and third hydraulic telescoping rod (303) inner is connected with flashboard (304).

4. A particle spreading device for road snow melting of construction machinery according to claim 3, wherein: workbin (3) inner wall rotates and is connected with crushing roller (308), and workbin (3) right side setting with second motor (305), second motor (305) are connected through first bevel gear group (306) and auger (307), and auger (307) left end through rotation connects on workbin (3) inner wall.

5. A particle spreading device for road snow melting of construction machinery according to claim 1, wherein: the spreading pipe (4) comprises a material blocking roller (401), a material throwing plate (402), a second rotating shaft (403) and a third motor (404), the material blocking roller (401) is rotationally connected to the inner wall of the spreading pipe (4), a material throwing plate (402) is rotationally connected to the spreading pipe (4), the material throwing plate (402) is arranged below the left side of the material blocking roller (401), the upper end of the material throwing plate (402) is connected with the second rotating shaft (403), and the upper end of the second rotating shaft (403) penetrates through the spreading pipe (4) and is connected with the third motor (404).

6. A particle spreading device for road snow melting of construction machinery according to claim 1, wherein: support frame (5) are including fourth motor (501), second bevel gear group (502), lead screw (503), remove frame (504), fourth hydraulic telescoping rod (505) and broach (506), and support frame (5) side is provided with fourth motor (501), fourth motor (501) are connected through second bevel gear group (502) and lead screw (503), and lead screw (503) inner run through the rotation and connect in support frame (5), run through on lead screw (503) and be provided with removal frame (504), and remove frame (504) and be sliding connection through between spout and support frame (5) inner wall, it is provided with fourth hydraulic telescoping rod (505) to run through support frame (5) on the left side of removal frame (504), and fourth hydraulic telescoping rod (505) left end is connected with broach (506).

7. A particle spreading device for road snow melting of construction machinery according to claim 1, wherein: first motor (6), first pivot (7) and rotating turret (8) constitute slewing mechanism, and rotating turret (8) are provided with two, and two rotating turrets (8) are around workbin (3) central line symmetry setting simultaneously.

8. A particle spreading device for road snow melting of construction machinery according to claim 1, wherein: first hydraulic telescoping rod (9) run through the setting on rotating turret (8), and first hydraulic telescoping rod (9) lower extreme is connected with last work or material rest (10), and telescopic machanism is constituteed with last work or material rest (10) in first hydraulic telescoping rod (9) simultaneously.

9. A particle spreading device for road snow melting of construction machinery according to claim 8, wherein: the feeding frame (10) comprises a pressing plate (1001), a through hole (1002), a fifth hydraulic telescopic rod (1003), a spring (1004) and a puncture cone (1005), the pressing plate (1001) is arranged in the feeding frame (10), the through hole (1002) is formed in the pressing plate (1001), the pressing plate (1001) on the left side is connected with the fifth hydraulic telescopic rod (1003), the fifth hydraulic telescopic rod (1003) penetrates through the side wall of the feeding frame (10), the spring (1004) and the puncture cone (1005) are arranged on the right side wall of the feeding frame (10), the spring (1004) is arranged on the outer side of the puncture cone (1005), one end, far away from the right side wall of the feeding frame (10), of the spring (1004 is connected with the pressing plate (1001) on the right side, and one end, far away from the right side wall of the feeding frame (10), of the puncture cone (1005) penetrates through the through hole (1002) on the right side.

Technical Field

The invention relates to the technical field of engineering machinery, in particular to particle spreading equipment for road snow melting of engineering machinery.

Background

In winter, after cities in a plurality of cold regions face strong snowfall, when a large amount of snow is produced on the road surface and the road surface is frozen, in order to ensure smooth road traffic, a snow melting agent needs to be spread on the road surface, the snow melting temperature on the road is reduced to melt the snow on the road, most of the existing particle spreading equipment for melting the snow on the road surface is assembled and used by vehicles and a snow melting agent spreader, the snow melting agent is put into a hopper of the vehicles, the snow melting agent in the hopper is added into the snow melting agent spreader for spreading in a manual mode, the labor operation intensity is increased, an operator needs to operate in cold wind for a long time, and the problem is solved by the particle spreading equipment for melting the snow on the road surface, which is an engineering machine.

Disclosure of Invention

The invention aims to provide particle spreading equipment for road surface snow melting of engineering machinery, which aims to solve the problem that the labor operation intensity is increased because most of the existing particle spreading equipment for road surface snow melting proposed in the background technology is assembled by a vehicle and a snow melting agent spreader, the snow melting agent is put into a hopper of the vehicle, and the snow melting agent in the hopper is added into the snow melting agent spreader for spreading in a manual mode.

In order to achieve the purpose, the invention provides the following technical scheme: a particle spreading device for road snow melting of engineering machinery comprises a vehicle body, a material box, a first motor and a first hydraulic telescopic rod,

the trolley body is provided with a reserved frame, the inner side surface of the reserved frame is connected with a material box, and the material box is arranged in the trolley body;

the discharge pipe at the lower end of the feed box is connected with the spreading pipe, the support frame is arranged on the right side of the feed box, and the support frame is arranged in the vehicle body;

the first motor is arranged in the support frame and connected with the first rotating shaft, and the upper end of the first rotating shaft penetrates through the support frame and is connected with the rotating frame.

Preferably, the reserved frame comprises a transmission belt device and a rotating roller, the inner wall of the reserved frame is connected with the transmission belt device and the rotating roller in a rotating mode, and the rotating roller is arranged on the right side of the transmission belt device.

By adopting the technical scheme, a proper amount of bagged snow-melting agent can be stored for use through the reserved rack.

Preferably, the workbin is including second hydraulic telescoping rod, apron, third hydraulic telescoping rod, flashboard, second motor, first bevel gear group, auger and crushing roller, and the workbin upper end is provided with second hydraulic telescoping rod, and second hydraulic telescoping rod right-hand member is connected with the apron simultaneously, be provided with third hydraulic telescoping rod in the workbin bottom, and third hydraulic telescoping rod the inner is connected with the flashboard.

Through adopting above-mentioned technical scheme, can open or close the apron under the effect of second hydraulic telescoping rod, make things convenient for the workbin in to add snow melt agent.

Preferably, the workbin inner wall rotates and is connected with the crushing roller, and the workbin right side sets up and the second motor, the second motor is connected with the auger through first bevel gear group, and the auger left end runs through and rotates the connection on the workbin inner wall.

Through adopting above-mentioned technical scheme, can be to the snow melt agent breakage of caking under the crushing roller effect, convenient follow-up spreading.

Preferably, the spreading pipe is including keeping off material roller, throwing flitch, second pivot and third motor, and the spreading pipe inner wall rotates and is connected with and keeps off the material roller, the intraductal rotation of spreading is connected with and throws the flitch, and throws the flitch setting and keep off the left side below of material roller, throw flitch upper end and second pivot and be connected, and run through the spreading pipe on the second pivot and be connected with the third motor.

Through adopting above-mentioned technical scheme, control unloading speed under the effect of keeping off the material roller.

Preferably, the support frame is including fourth motor, second bevel gear group, lead screw, removal frame, fourth hydraulic telescoping rod and paddle-knife, and the support frame side is provided with the fourth motor, the fourth motor is connected through second bevel gear group and lead screw, and runs through the rotation connection in the support frame in the lead screw inner, run through on the lead screw and be provided with the removal frame, and remove and put up sliding connection between spout and the support frame inner wall, it is provided with fourth hydraulic telescoping rod to run through the support frame on the left of the removal frame, and fourth hydraulic telescoping rod left end is connected with the paddle-knife.

Through adopting above-mentioned technical scheme, drive the lead screw and rotate under fourth motor, second bevel gear group effect for the carriage moves on the lead screw, makes things convenient for the cut-out knife to the unloading of scratching the snow melt agent in bags.

Preferably, the first motor, the first rotating shaft and the rotating frames form a rotating mechanism, the number of the rotating frames is two, and the two rotating frames are symmetrically arranged around the front center line and the rear center line of the material box.

By adopting the technical scheme, the bagged snow-melting agent on the front side and the rear side of the vehicle body can be unloaded into the material box under the action of the rotating frames on the two sides.

Preferably, the first hydraulic telescopic rod penetrates through the rotating frame, the lower end of the first hydraulic telescopic rod is connected with the feeding frame, and the first hydraulic telescopic rod and the feeding frame form a telescopic mechanism.

Through adopting above-mentioned technical scheme, can use the suitable adjustment of height of last work or material rest under first hydraulic telescoping rod's effect.

Preferably, the feeding frame comprises a pressing plate, a through hole, a fifth hydraulic telescopic rod, a spring and a puncture cone, the pressing plate is arranged in the feeding frame, the through hole is formed in the pressing plate, the left pressing plate is connected with the fifth hydraulic telescopic rod, the fifth hydraulic telescopic rod penetrates through the side wall of the feeding frame, the spring and the puncture cone are arranged on the right side wall of the feeding frame, the spring is arranged on the outer side of the puncture cone, one end of the right side wall of the feeding frame is connected with the pressing plate on the right side, and one end of the right side wall of the feeding frame is far away from the puncture cone and penetrates through the through hole in the right side.

Through adopting above-mentioned technical scheme, push left clamp plate cooperation puncture awl under the effect of fifth hydraulic telescoping rod, will puncture the puncture awl and puncture the snow melt agent in bags, conveniently promote the snow melt agent in bags.

Compared with the prior art, the invention has the beneficial effects that: the engineering machine is used for particle spreading equipment for melting snow on road surfaces,

(1) the vehicle body is symmetrically provided with the reserved frames which can be used for placing unpackaged bagged snow-melting agents, and when the snow-melting agents in the material box are not used enough, the replenishment can be provided in time, so that the cruising ability of the road snow-melting spreading equipment is improved;

(2) the material blocking roller in the spreading pipe is driven to rotate under the action of an external driving mechanism, so that the blanking speed of the snow melting agent is conveniently controlled;

(3) the left pressing plate is pushed to extrude the right pressing plate under the action of the fifth hydraulic telescopic rod, so that the puncture cone penetrates through the bagged snow-melting agent, the bagged snow-melting agent can be limited and fixed, the bagged snow-melting agent can be lifted under the action of the first hydraulic telescopic rod, the rotating frame is driven to rotate through the first motor and the first rotating shaft, and the bagged snow-melting agent on the reserved frame is transferred to the upper part of the material box for feeding and supplementing;

(4) the utility model discloses a snow melt agent packing bag, including the first hydraulic telescoping rod, the second hydraulic telescoping rod, the third hydraulic telescoping rod, the fourth hydraulic telescoping rod, the fifth hydraulic telescoping rod, the fourth hydraulic telescoping rod, the.

Drawings

FIG. 1 is a front view of the vehicle body of the present invention;

FIG. 2 is a schematic top view of the preformed frame of the present invention;

FIG. 3 is a schematic view of the front cross-sectional structure of the material box of the present invention;

FIG. 4 is a schematic left side sectional view of the material box of the present invention;

FIG. 5 is a schematic structural view of a spreading pipe and a material blocking roller of the present invention;

FIG. 6 is a front view of the first motor, the first shaft and the turret according to the present invention;

FIG. 7 is an enlarged view of the structure at A in FIG. 6 according to the present invention;

FIG. 8 is a schematic top view of a fourth hydraulic telescopic rod and a utility knife of the present invention.

In the figure: 1. the device comprises a vehicle body, 2, a reserved frame, 201, a conveyor belt device, 202, a rotating roller, 3, a bin, 301, a second hydraulic telescopic rod, 302, a cover plate, 303, a third hydraulic telescopic rod, 304, a gate plate, 305, a second motor, 306, a first bevel gear set, 307, an auger, 308, a crushing roller, 4, a distribution pipe, 401, a material blocking roller, 402, a material throwing plate, 403, a second rotating shaft, 404, a third motor, 5, a supporting frame, 501, a fourth motor, 502, a second bevel gear set, 503, a lead screw, 504, a moving frame, 505, a fourth hydraulic telescopic rod, 506, a paddle knife, 6, a first motor, 7, a first rotating shaft, 8, a rotating frame, 9, a first hydraulic telescopic rod, 10, a material loading frame, 1001, a pressing plate, 1002, a through hole, 1003, a fifth hydraulic telescopic rod, 1004, a spring, 1005 and a puncture cone.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-8, the present invention provides a technical solution: a particle spreading device for road snow melting of engineering machinery is disclosed, as shown in figure 1, figure 2, figure 3 and figure 4, a car body 1 is provided with a reserved frame 2, the inner side surface of the reserved frame 2 is connected with a bin 3, the bin 3 is arranged in the car body 1, the reserved frame 2 comprises a conveyor belt device 201 and a rotating roller 202, the inner wall of the reserved frame 2 is rotatably connected with the conveyor belt device 201 and the rotating roller 202, the rotating roller 202 is arranged on the right side of the conveyor belt device 201, bagged snow melting agent arranged above is conveyed to the rotating roller 202 rightwards under the action of the conveyor belt device 201 to be conveniently transferred, the bin 3 comprises a second hydraulic telescopic rod 301, a cover plate 302, a third hydraulic telescopic rod 303, a gate plate 304, a second motor 305, a first bevel gear set 306, a packing auger 307 and a crushing roller 308, the upper end of the bin 3 is provided with the second hydraulic telescopic rod 301, and the right end of the second hydraulic telescopic rod 301 is connected with the cover plate 302, be provided with third hydraulic telescoping rod 303 in the 3 bottoms of workbin, and the inner flashboard 304 that is connected with of third hydraulic telescoping rod 303, it opens to move both sides flashboard 304 under the effect of third hydraulic telescoping rod 303, be used for unloading in the workbin 3, 3 inner walls of workbin rotate and be connected with crushing roller 308, and 3 right sides of workbin set up with second motor 305, second motor 305 is connected through first bevel gear group 306 and auger 307, and auger 307 left end through-rotation connects on 3 inner walls of workbin, at second motor 305, drive auger 307 under the effect of first bevel gear group 306, make things convenient for the 3 materials of workbin to unload out.

As shown in fig. 1 and 5, a discharge pipe at the lower end of a material box 3 is connected with a spreading pipe 4, a support frame 5 is arranged at the right side of the material box 3, the support frame 5 is arranged in a vehicle body 1, the spreading pipe 4 comprises a material blocking roller 401, a material throwing plate 402, a second rotating shaft 403 and a third motor 404, the material blocking roller 401 is rotatably connected to the inner wall of the spreading pipe 4, the material throwing plate 402 is rotatably connected to the spreading pipe 4, the material throwing plate 402 is arranged at the lower left of the material blocking roller 401, the upper end of the material throwing plate 402 is connected with the second rotating shaft 403, the upper end of the second rotating shaft 403 penetrates through the spreading pipe 4 and is connected with the third motor 404, the material throwing plate 402 is driven to rotate under the action of the third motor 404 and the second rotating shaft 403 to spread the snow melting agent, the support frame 5 comprises a fourth motor 501, a second bevel gear set 502, a lead screw 503, a moving frame 504, a fourth hydraulic telescopic rod 505 and a scraper 506, and a fourth motor 501 is arranged at the side of the support frame 5, the fourth motor 501 is connected with the screw 503 through the second bevel gear set 502, the inner end of the screw 503 is connected in the support frame 5 in a penetrating and rotating mode, the screw 503 is provided with the moving frame 504 in a penetrating mode, the moving frame 504 is connected with the inner wall of the support frame 5 in a sliding mode through the sliding groove, the left side of the moving frame 504 is provided with a fourth hydraulic telescopic rod 505 in a penetrating mode through the support frame 5, the left end of the fourth hydraulic telescopic rod 505 is connected with the scraper 506, and the fourth hydraulic telescopic rod 505 pushes the scraper 506 to be in contact with the snow melting agent packaging bag to scratch the snow melting agent packaging bag, so that the snow melting agent can be supplemented conveniently.

As shown in fig. 2, 6, 7 and 8, the first motor 6 is arranged in the support frame 5, the first motor 6 is connected with the first rotating shaft 7, the upper end of the first rotating shaft 7 penetrates through the support frame 5 and is connected with the rotating frame 8, the first motor 6, the first rotating shaft 7 and the rotating frame 8 form a rotating mechanism, two rotating frames 8 are arranged, the two rotating frames 8 are symmetrically arranged around the front and rear central lines of the material box 3, the rotating frame 8 is driven to rotate under the action of the first motor 6 and the first rotating shaft 7, so that the bagged snow-melting agent is conveniently transferred from the reserve frame 2 to the upper part of the material box 3 for feeding, the first hydraulic telescopic rod 9 penetrates through the rotating frames 8, the lower end of the first hydraulic telescopic rod 9 is connected with the upper material frame 10, and the first hydraulic telescopic rod 9 and the upper material frame 10 form a telescopic mechanism, so that the bagged snow-melting agent is lifted and lowered under the action of the first hydraulic telescopic rod 9, the material loading frame 10 comprises a pressing plate 1001, a through hole 1002, a fifth hydraulic telescopic rod 1003, a spring 1004 and a puncture cone 1005, the pressing plate 1001 is arranged in the material loading frame 10, the through hole 1002 is formed in the pressing plate 1001, the pressing plate 1001 on the left side is connected with the fifth hydraulic telescopic rod 1003, the fifth hydraulic telescopic rod 1003 penetrates through the side wall of the material loading frame 10, the spring 1004 and the puncture cone 1005 are arranged on the right side wall in the material loading frame 10, the spring 1004 is arranged on the outer side of the puncture cone 1005, one end, away from the right side wall in the material loading frame 10, of the spring 1004 is connected with the pressing plate 1001 on the right side, one end, away from the right side wall in the material loading frame 10, of the puncture cone 1005 penetrates through the through hole 1002 on the right side, after bagged snow melting agent is discharged, the pressing plate 1001 on the right side is pushed under the action of the spring 1004 to reset, and a snow melting agent packaging bag can be pushed down from the puncture cone 1005.

The working principle is as follows: when the engineering machinery is used for particle spreading equipment for road surface snow melting, a proper amount of snow melting agent is added into a material box 3, a proper amount of bagged snow melting agent is placed in a reserved frame 2 for standby application, spreading is carried out through movement of a vehicle body 1, a flashboard 304 is pulled under the action of a third hydraulic telescopic rod 303, so that the snow melting agent in the material box 3 falls into a spreading pipe 4, a material blocking roller 401 rotates under the action of an external driving mechanism to control the blanking speed, a material throwing plate 402 is driven to rotate under the action of a third motor 404 and a second rotating shaft 403 to spread the snow melting agent, when the snow melting agent in the material box 3 is insufficient, the snow melting agent placed above is driven to move to the right under the action of a conveying belt device 201 to be placed on a rotating roller 202, a first motor 6 drives a rotating frame 8 to rotate through a first rotating shaft 7, a bag-loading snow melting agent rack 10 is rotated above the bag-loading snow melting agent rack, the height of the bag-loading snow melting agent rack 10 is adjusted under the action of the first hydraulic telescopic rod 9, the pressing plate 1001 on the left side is pushed by the fifth hydraulic telescopic rod 1003 to press the pressing plate 1001 on the right side, the spring 1004 is compressed, the puncture cone 1005 penetrates through a snow melt agent packaging bag through the through hole 1002, the bagged snow melt agent is lifted under the action of the first hydraulic telescopic rod 9 and is transferred to the upper part of the material box 3 under the action of the first motor 6, the cover plate 302 is pulled by the second hydraulic telescopic rod 301 to be opened, the scratching knife 506 is pushed to be contacted with the snow melt agent packaging bag under the action of the fourth hydraulic telescopic rod 505, the fourth motor 501 drives the lead screw 503 to rotate through the second bevel gear set 502, the movable frame 504 moves on the lead screw 503, the packaging bag is scratched through the scratching knife 506, the snow melt agent is added into the material box 3, the caked snow melt agent is crushed through the crushing roller 308, after the snow melt agent is supplemented, the fifth hydraulic telescopic rod 1003 pulls the pressing plate 1001 on the left side to reset, the pressing plate 1001 on the right side under the action of the spring 1004 resets and pushes the packaging bag on the puncture cone 1005 to fall into the vehicle body 1, those not described in detail in this specification are within the skill of the art.

The terms "central," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for simplicity of description only and are not intended to indicate or imply that the referenced devices or elements must be in a particular orientation, constructed and operative in a particular orientation, and are not to be considered limiting of the claimed invention.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.

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