CN203152458U - Apery circle twisting device - Google Patents
Apery circle twisting device Download PDFInfo
- Publication number
- CN203152458U CN203152458U CN2012207175427U CN201220717542U CN203152458U CN 203152458 U CN203152458 U CN 203152458U CN 2012207175427 U CN2012207175427 U CN 2012207175427U CN 201220717542 U CN201220717542 U CN 201220717542U CN 203152458 U CN203152458 U CN 203152458U
- Authority
- CN
- China
- Prior art keywords
- right baffle
- plate
- gear
- fixedly connected
- gears
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Confectionery (AREA)
Abstract
The utility model discloses an apery circle twisting device. A circle twisting device is arranged between a left baffle and a right baffle. The apery circle twisting device is characterized in that an extrusion device is arranged at the upper part; a strip cutting device is arranged below the extrusion device; a block cutting device is arranged below the strip cutting device; and the circle twisting device is arranged below the block cutting device. The apery circle twisting device is artful in conception, reasonable in structure, high in level of mechanization and capable of simulating the action for manually twisting circular stuffing as much as possible, achieving higher production efficiency as comparison with the manual circle twisting and ensuring the hygiene and safety of a processed food; and the produced stuffing is circular and smooth in appearance and compact in inside organization, so that the food stuffing keeps the traditional flavor. The apery circle twisting device is widely suitable for processing the stuffing of various foods such as rice dumplings, cakes and sweets as well as drugs.
Description
Technical field
The utility model relates to a kind of manual food processing apparatus that twists circular foods filling material that imitates, and specifically is a kind of stranding round belting of apery.
Background technology
The filling of food with filling such as traditional cake and the rice dumpling all is to rub with the hands by hand to be circle, wraps crust again.The process that twists by hand the filling material can make the smooth in appearance of filling material, and interior tissue is tight, and the crust that the circular filling material of smooth in appearance can make food is cracky not, food with filling good looking appearances such as the cake of making of this filling material and the rice dumpling, filling material consolidation, mouthfeel is good, and crust is difficult for damaged in the processing.And the filling material profile that present most equipment is processed is round, and the tissue looseness of filling material is bigger with original form and the local flavor difference of food with filling such as the cake of this filling material processing and the rice dumpling and these traditional foods, crust breakage easily in the processing.
Summary of the invention
Weak points such as the purpose of this utility model is to overcoming circle and rough of filling material profile that existing filling material former processes, and the interior tissue of filling material is loose and a kind of technical scheme of stranding round belting of apery is provided.
The technical solution of the utility model: a kind of stranding round belting of apery, about be provided with the stranding round belting between two baffle plates, it is characterized in that pressurizing unit is located at top, slitting device is established in the below, the stripping and slicing device is established in the slitting device below, the stranding round belting is established in stripping and slicing device below; Concrete structure and being connected to: the bottom of right baffle-plate and right baffle plate is connected on the base plate, base plate is provided with receiver, connect motor at right baffle plate, motor shaft extend out to outside the right baffle plate, fixedly connected No. 5 gears on the motor shaft, rotating connection power transmission shaft between right baffle-plate and the right baffle plate, fixedly connected No. 4 gears of power transmission shaft left end, No. 4 gears and No. 5 gear engagements, the fixedly connected duplicate gear of power transmission shaft right-hand member, the inner of duplicate gear is No. 2 gears, the outer end is partial gear, 2 parallel undercut piece cutter shafts of rotating connection between right baffle-plate and the right baffle plate, be equipped with many brick cutter on the stripping and slicing cutter shaft, the left end of stripping and slicing cutter shaft is fixedly connected No. 3 gears all, 1 No. 3 gear and No. 1 gear engagement, 2 No. 3 gears are meshing with each other, the big idler gear of rotating connection on right baffle-plate, 2 parallel undercut bar cutter shafts of rotating connection between right baffle-plate and right baffle plate, equal fixedly connected slitting knife on the slitting cutter shaft, slitting cutter shaft left end is fixedly connected 1 No. 2 gear all, 2 No. 2 gears are meshing with each other, 1 No. 2 gear meshes with big idler gear, the little idler gear of rotating connection on right baffle-plate, little idler gear and No. 2 gear engagements, rotating connection reduction gearing on right baffle-plate, reduction gearing and the engagement of little idler gear, 2 parallel compression rollers of rotating connection between right baffle-plate and right baffle plate, fixedly connected No. 1 gear of compression roller left end, 2 No. 1 gears are meshing with each other, 1 No. 1 gear and reduction gearing engagement; Be provided with the stranding round belting between right baffle-plate and right baffle plate, rub fixedly connected No. 1 gear of circle roller axle right-hand member with the hands, fixedly connected rach slot on base plate is provided with in the rach slot and can be provided with coil tension spring in the rach slot along the reciprocating tooth bar of rach slot.
Have 2 sections circular arcs on the cylindrical of described partial gear at least, at least 2 teeth in every section circular arc interval.
Described brick cutter is circular, equidistant being fixedly connected on the stripping and slicing cutter shaft, and the brick cutter quantity on the 2 undercut piece cutter shafts is identical, and the position is parallel to each other.
The structure of described slitting knife is: the both ends of two undercut bar cutter shafts between right baffle-plate and right baffle plate are equipped with knife rest, fixedly connected at least 1 blade between two knife rests.
Gap between the described compression roller is the 10-50 millimeter.
The structure of described stranding round belting is, the circle roller axle is rubbed in rotating connection with the hands between right baffle-plate and right baffle plate, rub fixedly connected stranding circle roller on the circle roller axle with the hands, the structure of rubbing circle roller with the hands is: rub fixedly connected helical blade on the circle roller axle with the hands, being provided with axial cross section between each helical blade is the blade screw groove of semicircle; The dismountable connection rubbed the circle seat with the hands on right baffle-plate and right baffle plate, rubs the circle seat with the hands and is provided with the semicircular groove that radius is equal to or greater than helical blade along its length, is provided with the spiral base helicla flute identical, measure-alike with the pitch of blade screw groove in the groove.
The concrete structure of described rach slot is, the bottom is provided with base plate, front-end and back-end are provided with the rach slot baffle plate, in rach slot, be provided with the fixedly connected spring of an end, being provided with the spring end opposite position can be along the reciprocating tooth bar of rach slot, and tooth bar is inner to be contacted with spring end, and rach slot top is provided with 2 tooth bar pressing plates, article 2, the spacing of tooth bar pressing plate is less than the width of tooth bar, and tooth bar and No. 1 gear mesh.
The top of described right baffle-plate and right baffle plate is provided with feed well, and the feed well bottom is provided with front apron, is provided with backboard at the rear portion of right baffle-plate and right baffle plate.
The utility model is by compression roller the filling material to be pushed, carry out slitting and stripping and slicing again, the filling material profile of this moment is circle and rough, and the interior tissue of filling material is loose, and the utility model is that the stranding round belting by apery makes filling material smooth-shaped rounding, interior tissue filling material closely.The stranding circle roller of rubbing round belting with the hands can carry out regular reciprocal relative rolling with rubbing with the hands between the circle seat, the filling material is squeezed with rubbing with the hands back and forth to be rubbed with the hands back and forth in the helicla flute that the circle seat forms rubbing circle roller with the hands, its motion process approaches the manual action of squeezing of rubbing with the hands very much, can guarantee the local flavor of the more approaching manual processing of food of processing.It is by the engagement of a partial gear with No. 1 gear and tooth bar that motion is squeezed in reciprocal stranding of the present utility model, and cooperates the transmission realization with spring assembly.
The utility model is skillfully constructed, rational in infrastructure, the mechanization degree height, simulate artificial craft as much as possible and twisted the action of circular filling material, the filling material profile rounding of producing is smooth, the interior tissue of filling material is tight, make Food stuff keep traditional local flavor, can obtain higher production efficiency than the manual circle of rubbing with the hands, and can guarantee the food sanitation safe of processing.The utility model can be widely used in the processing of various Food stuffs such as the rice dumpling, cake and candy, also can be used for the processing of medicine.
Description of drawings
Fig. 1 is the structural representation stereogram that the utility model front removes left gear case lid (34) and front apron (35)
Fig. 2 is the structural representation stereogram that the utility model back side removes right gear case lid (39) and backboard
Fig. 3 is the utility model outside drawing
Fig. 4 is the structural representation stereogram that the utility model is rubbed round belting with the hands
Fig. 5 is the transmission schematic isometric that the utility model is rubbed round belting with the hands
Fig. 6 is the structural representation stereogram of the utility model rach slot
Fig. 7 is the structural representation stereogram of the utility model front apron (35)
Fig. 8 is the structural representation stereogram of the utility model feed well (36)
Among the figure: (1) is right baffle-plate, (2) be reduction gearing, (3) be No. 1 gear, (4) be little idler gear, (5) be No. 2 gears, (6) be No. 3 gears, (7) be partial gear, (8) be tooth bar, (9) be the tooth bar pressing plate, (10) be the spring set bolt, (11) be rach slot, (12) be the rach slot bolt, (13) be the right baffle-plate bolt, (14) be the rach slot baffle plate, (15) be rach slot baffle plate bolt, (16) be base plate, (17) be receiver, (18) be to rub circle roller with the hands, (19) be to rub the circle seat with the hands, (20) be brick cutter, (21) be slitting knife, (22) be squeezing roller, (23) be right baffle plate, (24) be the bearing rubber closure, (25) be No. 4 gears, (26) be hexagonal fastening bolt in the receiver, (27) be right baffle plate bolt, (28) be No. 5 gears, (29) be hexagonal fastening bolt in the motor, (30) be motor lead export, (31) be motor, (32) be power transmission shaft, (33) be the left gear bolt of cover setting, (34) be the left gear case lid, (35) be front apron, (36) be feed well, (39) be the right gear case lid, (41) be tooth bar pressing plate fastening bolt, (42) be coil tension spring, (43) be flat key.
The specific embodiment
A kind of stranding round belting of apery, pressurizing unit is located at top, and slitting device is established in the below, and the stripping and slicing device is established in the slitting device below, and the stranding round belting is established in stripping and slicing device below; Concrete structure and being connected to: respectively the bottom of right baffle-plate (1) and right baffle plate (23) is connected on the base plate (16) with right baffle-plate bolt (13) and right baffle plate bolt (27), connect receiver (17) with hexagonal fastening bolt (26) in the receiver on the base plate, connect motor (31) at right baffle plate (23) with hexagonal fastening bolt (29) in the motor, establish motor lead export (30) at right baffle plate, motor shaft extend out to outside the right baffle plate, fixedly connected No. 5 gears (28) on the motor shaft, rotating connection power transmission shaft (32) between right baffle-plate and the right baffle plate, fixedly connected No. 4 gears of power transmission shaft left end (25), No. 4 gears (25) and No. 5 gears (28) engagement, the fixedly connected duplicate gear of power transmission shaft right-hand member, the inner of duplicate gear is No. 2 gears (5), the outer end fixedly connected partial gear of flat key (43) (7), the cylindrical of partial gear (7) is provided with 4 sections circular arcs, and each section circular arc is 3 teeth in interval respectively, 3 teeth, 4 teeth and 10 teeth.2 parallel undercut piece cutter shafts of rotating connection between right baffle-plate and the right baffle plate, be equipped with 10 brick cutters (20) on the stripping and slicing cutter shaft, brick cutter is circular, equidistant being fixedly connected on the stripping and slicing cutter shaft, brick cutter quantity on the 2 undercut piece cutter shafts is identical, and the position is parallel to each other.The left end of stripping and slicing cutter shaft is fixedly connected No. 3 gears (6) all, 1 No. 3 gear and No. 1 gear engagement, 2 No. 3 gears are meshing with each other, the big idler gear of rotating connection on right baffle-plate, 2 parallel undercut bar cutter shafts of rotating connection between right baffle-plate and right baffle plate, equal fixedly connected slitting knife (21) on the slitting cutter shaft, the structure of slitting knife is: the both ends of two undercut bar cutter shafts between right baffle-plate and right baffle plate are equipped with knife rest, fixedly connected 2 blades between two knife rests.Slitting cutter shaft left end is fixedly connected 1 No. 2 gear (5) all, 2 No. 2 gears are meshing with each other, 1 No. 2 gear meshes with big idler gear, the little idler gear of rotating connection (4) on right baffle-plate, little idler gear (4) and No. 2 gear engagements, rotating connection reduction gearing (2) on right baffle-plate, reduction gearing and little idler gear (4) engagement, parallel 2 compression rollers (22) of rotating connection between right baffle-plate and right baffle plate, gap between 2 compression rollers (22) is the 10-50 millimeter, and the compression roller axle head is provided with bearing rubber closure (24).Fixedly connected No. 1 gear of compression roller left end (3), 2 No. 1 gears are meshing with each other, 1 No. 1 gear and reduction gearing (2) engagement; Between right baffle-plate and right baffle plate, be provided with the stranding round belting, the structure of rubbing round belting with the hands is, the circle roller axle is rubbed in rotating connection with the hands between right baffle-plate and right baffle plate, rub fixedly connected stranding circle roller (18) on the circle roller axle with the hands, the structure of rubbing circle roller with the hands is: rub fixedly connected helical blade on the circle roller axle with the hands, being provided with axial cross section between each helical blade is the blade screw groove of semicircle; The dismountable connection rubbed circle seat (19) with the hands on right baffle-plate and right baffle plate, rub the circle seat with the hands and be provided with the semicircular groove that radius is equal to or greater than helical blade along its length, be provided with in the groove and pitch, size, lead angle and the rotation direction of blade screw groove identical spiral base helicla flute all.Rub circle roller axle fixedly connected No. 1 gear of right-hand member (3) with the hands, on base plate, fixedly connected rach slot (11) with rach slot bolt (12) by spring set bolt (10), the bottom of rach slot is provided with base plate, front-end and back-end are provided with rach slot baffle plate (14), with rach slot baffle plate bolt (15) left side plate is fixed on base plate and the rach slot baffle plate (14), in rach slot, be provided with the fixedly connected spring of an end (42), being provided with the spring end opposite position can be along the reciprocating tooth bar of rach slot (8), tooth bar is inner to be contacted with spring end, fixedly there are 2 tooth bar pressing plates (9) on rach slot top by tooth bar pressing plate fastening bolt (41), article 2, the spacing of tooth bar pressing plate is less than the width of tooth bar, and tooth bar (8) meshes with No. 1 gear.
Be safety in production, at the fixing left gear case lid (34) of right baffle-plate external application left gear bolt of cover setting (33), outside right baffle plate, be provided with right gear case lid (39).Top at right baffle-plate (1) and right baffle plate (23) is provided with feed well (36), and the feed well bottom is provided with front apron (35), is provided with backboard at the rear portion of right baffle-plate (1) and right baffle plate (23).
Operation principle of the present utility model is: it is engagement by a partial gear and No. 1 gear and tooth bar that motion is squeezed in the reciprocal stranding of rubbing round belting with the hands, and cooperate transmission to realize with spring assembly, partial gear (7) No. 1 gear of drive intermittently, make and rub circle roller rotation intermittently with the hands, rub circle roller with the hands in rotation process, the helicla flute on it with and rub circle seat helicla flute with the hands and squeeze the filling material and form similar manual extruding space of rubbing circle with the hands rubbing with the hands.Its motion process is, partial gear (7) drives during with No. 1 gear (3) engagement to be rubbed circle roller (18) with the hands and rotate, and to drive tooth bar (8) mobile for No. 1 gear (3) simultaneously; When partial gear withdraws from engagement, tooth bar (8) will be drawn mobile in the opposite direction by spring assembly, this hour rack (8) will drive No. 1 gear (3) reverse rotation, make to rub circle roller (18) backward rotation with the hands, thereby realize that the back and forth reciprocal stranding of Food stuff in helicla flute is crowded.When partial gear was engaged to the long engaged section of 10 teeth, the filling material was extruded helicla flute, formed finished product.
Claims (8)
1. the stranding round belting of an apery, about be provided with the stranding round belting between two baffle plates, it is characterized in that pressurizing unit is located at top, slitting device is established in the below, the stripping and slicing device is established in the slitting device below, the stranding round belting is established in stripping and slicing device below; Concrete structure and being connected to: the bottom of right baffle-plate (1) and right baffle plate (23) is connected on the base plate (16), base plate is provided with receiver (17), connect motor (31) at right baffle plate (23), motor shaft extend out to outside the right baffle plate, fixedly connected No. 5 gears (28) on the motor shaft, rotating connection power transmission shaft (32) between right baffle-plate and the right baffle plate, fixedly connected No. 4 gears of power transmission shaft left end (25), No. 4 gears (25) and No. 5 gears (28) engagement, the fixedly connected duplicate gear of power transmission shaft right-hand member, the inner of duplicate gear is No. 2 gears (5), the outer end is partial gear (7), 2 parallel undercut piece cutter shafts of rotating connection between right baffle-plate and the right baffle plate, be equipped with many brick cutter (20) on the stripping and slicing cutter shaft, the left end of stripping and slicing cutter shaft is fixedly connected No. 3 gears (6) all, 1 No. 3 gear and No. 1 gear engagement, 2 No. 3 gears are meshing with each other, the big idler gear of rotating connection on right baffle-plate, 2 parallel undercut bar cutter shafts of rotating connection between right baffle-plate and right baffle plate, equal fixedly connected slitting knife (21) on the slitting cutter shaft, slitting cutter shaft left end is fixedly connected 1 No. 2 gear (5) all, 2 No. 2 gears are meshing with each other, 1 No. 2 gear meshes with big idler gear, the little idler gear of rotating connection (4) on right baffle-plate, little idler gear (4) and No. 2 gear engagements, rotating connection reduction gearing (2) on right baffle-plate, reduction gearing and little idler gear (4) engagement, parallel 2 compression rollers (22) of rotating connection between right baffle-plate and right baffle plate, fixedly connected No. 1 gear of compression roller left end (3), 2 No. 1 gears are meshing with each other, 1 No. 1 gear and reduction gearing (2) engagement; Between right baffle-plate and right baffle plate, be provided with the stranding round belting, rub circle roller axle fixedly connected No. 1 gear of right-hand member (3) with the hands, fixedly connected rach slot (11) on base plate is provided with in the rach slot and can be provided with coil tension spring (42) in the rach slot along the reciprocating tooth bar of rach slot (8).
2. the stranding round belting of a kind of apery according to claim 1 is characterized in that, has 2 sections circular arcs on the cylindrical of described partial gear (7) at least, at least 2 teeth in every section circular arc interval.
3. the stranding round belting of a kind of apery according to claim 1 is characterized in that, described brick cutter (20) is circular, equidistant being fixedly connected on the stripping and slicing cutter shaft, and the brick cutter quantity on the 2 undercut piece cutter shafts is identical, and the position is parallel to each other.
4. the stranding round belting of a kind of apery according to claim 1, it is characterized in that, the structure of described slitting knife (21) is: the both ends of two undercut bar cutter shafts between right baffle-plate and right baffle plate are equipped with knife rest, fixedly connected at least 1 blade between two knife rests.
5. the stranding round belting of a kind of apery according to claim 1 is characterized in that, the gap between the described compression roller (22) is the 10-50 millimeter.
6. the stranding round belting of a kind of apery according to claim 1, it is characterized in that, the structure of described stranding round belting is, the circle roller axle is rubbed in rotating connection with the hands between right baffle-plate and right baffle plate, rub fixedly connected stranding circle roller (18) on the circle roller axle with the hands, the structure of rubbing circle roller with the hands is: rub fixedly connected helical blade on the circle roller axle with the hands, being provided with axial cross section between each helical blade is the blade screw groove of semicircle; The dismountable connection rubbed circle seat (19) with the hands on right baffle-plate and right baffle plate, rubs the circle seat with the hands and is provided with the semicircular groove that radius is equal to or greater than helical blade along its length, is provided with the spiral base helicla flute identical, measure-alike with the pitch of blade screw groove in the groove.
7. the stranding round belting of a kind of apery according to claim 1, it is characterized in that, the concrete structure of described rach slot (11) is, the bottom is provided with base plate, front-end and back-end are provided with rach slot baffle plate (14), in rach slot, be provided with the fixedly connected spring of an end (42), being provided with the spring end opposite position can be along the reciprocating tooth bar of rach slot (8), tooth bar is inner to be contacted with spring end, rach slot top is provided with 2 tooth bar pressing plates (9), article 2, the spacing of tooth bar pressing plate is less than the width of tooth bar, and tooth bar (8) meshes with No. 1 gear.
8. the stranding round belting of a kind of apery according to claim 1, it is characterized in that, the top of described right baffle-plate (1) and right baffle plate (23) is provided with feed well (36), and the feed well bottom is provided with front apron (35), is provided with backboard at the rear portion of right baffle-plate (1) and right baffle plate (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207175427U CN203152458U (en) | 2012-12-24 | 2012-12-24 | Apery circle twisting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207175427U CN203152458U (en) | 2012-12-24 | 2012-12-24 | Apery circle twisting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203152458U true CN203152458U (en) | 2013-08-28 |
Family
ID=49013702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012207175427U Expired - Fee Related CN203152458U (en) | 2012-12-24 | 2012-12-24 | Apery circle twisting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203152458U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107927020A (en) * | 2017-11-30 | 2018-04-20 | 象山县远洋冻品有限公司 | A kind of octopus ball baking device |
-
2012
- 2012-12-24 CN CN2012207175427U patent/CN203152458U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107927020A (en) * | 2017-11-30 | 2018-04-20 | 象山县远洋冻品有限公司 | A kind of octopus ball baking device |
| CN107927020B (en) * | 2017-11-30 | 2020-08-25 | 象山县远洋冻品有限公司 | Octopus ball baking equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105726315B (en) | A kind of binary channels Chinese medicinal pills preparing machine | |
| CN108157469B (en) | Hand-beating beef ball making equipment | |
| CN203152458U (en) | Apery circle twisting device | |
| CN204014909U (en) | Moon cake stuffed with Yunnan ham is cut and is pinched colored forming machine | |
| CN203762206U (en) | Rice cake extrusion equipment | |
| CN209473478U (en) | A kind of steamed stuffed bun steamed bread forming production line | |
| CN203709197U (en) | Minitype sushi coiling machine | |
| CN203136913U (en) | Novel hand-operated dough sheet/noodle maker | |
| CN111838241B (en) | Steamed twisted roll forming machine for food processing | |
| CN203523666U (en) | Multifunctional efficient noodle maker | |
| CN103385266A (en) | Belt-type pastry wrapper shaping device | |
| CN201115403Y (en) | Hand rubbing imitation four stand hinges fried dough twists | |
| CN216255068U (en) | Extrusion device for forming noodles with stuffing | |
| CN103385268A (en) | Roller-type dough-conveying dough-guiding and dough-shape-adjusting method and device | |
| CN215512747U (en) | Leather laminating device for artificial leather | |
| CN210492584U (en) | Food extrusion molding machine | |
| CN203735353U (en) | Novel fried dough twist rod coiling machine | |
| CN203040541U (en) | Multipurpose cooked wheaten food pressing cutter | |
| CN203482812U (en) | Multifunctional imitation hand-made stuffed fried dough twist molding machine | |
| CN207478650U (en) | A kind of food processing squeezes crushing device with two-stage | |
| CN203492665U (en) | Dough kneading machine | |
| CN215397096U (en) | Oil separator is used in production of chicken powder for fodder | |
| CN102862715A (en) | Automatic toothpaste extruder | |
| CN214385835U (en) | Multifunctional noodle press | |
| CN102125225B (en) | Electric and manual double-purpose sandwich cake making machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130828 Termination date: 20141224 |
|
| EXPY | Termination of patent right or utility model |