Abstract:
This invention relates to an apparatus for cutting food comprising a rack and a knife rest set on the rack and further comprising: a nipper for gripping food. A slideway is designed on the rack, provided with a slide rail and a guide rail that match each other between the slideway and the bottom of the nipper. The nipper for gripping food of the food cutter avoids sliding along the slideway with hands directly holding food to effectively prevent hands from being scratched by the knife rest and provide safer and more labor-saving use. Moreover, the slide rail and the guide rail that match each other between the slideway and the bottom of the nipper prevent the nipper from deviating when sliding along the slideway for more labor-saving use. This invention further discloses that it is a food cutter that can cut food into more shapes.

Description:
This application claims the priority of Chinese Application No. 200920154995.1, filed May 15, 2009, and the priority of Chinese Application No. 200920269844.0, filed Oct. 29, 2009. 
     FIELD OF THE INVENTION 
     This invention relates to a kitchenware, and particularly to a food cutter that can cut food into various shapes. 
     BACKGROUND OF THE INVENTION 
     To prepare vegetable salads or cook dishes, the food needs to be cut into slices or pieces or bars, and kitchen knifes or slicers or shredders are usually used. Slicing or shredding food with kitchen knifes is slow, and the thickness of the sliced or shredded food may be different. Slicers or shredders can ensure sliced or shredded food has the same thickness. However, the current slicers or shredders can provide a single shape of food only, such as slice or shred, and the shape can&#39;t be adjusted; in addition, the use is strenuous and not very safe as hands may be scratched easily. The technical problem this invention is intended to solve is the provision of a more labor-saving and safer food cutter aiming at the unsafe use of the shredders or slicers using the prior technique. 
     SUMMARY OF THE INVENTION 
     The technical scheme adopted by this invention to solve its technical problem is: to construct a food cutter, comprising: a rack and blade carriers set on the rack, and further comprising: a handguard for gripping food, with the said rack being provided with a slideway, with guides and slides that match each other set between the slideway and the bottom of the handguard. 
     In the food cutter according to this invention, the said handguard comprises a handguard base and a food storage mechanism set on the handguard base, and the said slides are set beneath the handguard base. 
     In the food cutter according to this invention, the said slide rails are provided with trolleys between the slide rails and the guide rails. The trolleys can reduce the friction between the slide rails and the guide rails, so that the operation is more labor-saving. 
     In the food cutter according to this invention, an outer fixed sleeve is fixed on the said handguard base, the said food storage mechanism comprises an inner rotating cylinder set inside the outer fixed sleeve that can slide axially along the outer fixed sleeve and a feeder positioned on the inner rotating cylinder, and steel needles that can stab in food are installed inside the said inner rotating cylinder. To fill food, the user just takes out the inner rotating cylinder from the outer fixed sleeve, without taking out the whole handguard from the slides, thus provides more convenient operation. 
     In the food cutter according to this invention, the said feeder comprises a connecting rod and a gland and a push-tray fixed on two ends of the connecting rod; the said connecting rod penetrates through the connecting hole set at the end of the said inner rotating cylinder; the said gland is located outside the inner rotating cylinder; the said push-tray is assembled inside the inner rotating cylinder; and the said push-tray is provided with needle holes for the steel needles passing through. The feeder feeds food continuously during food cutting, so that the whole food storage mechanism can grip more food at a time, thus reduces the number of food fillings and provides easier operation. 
     In the food cutter according to this invention, between the said outer fixed sleeve and the inner rotating cylinder is an outer rotating cylinder that can rotate relatively to the outer fixed sleeve and can axially slide relatively to the inner rotating cylinder; as well as an angle adjusting mechanism, provided with an index plate set at the extension of the outer rotating cylinder and a stop set on the guides that prods the said index plate to rotate. The angle adjusting mechanism makes the inner rotating cylinder that grips food able to rotate by a certain angle when the handguard slides along the slideway, thus the same food cutter can cut food into more shapes. 
     In the food cutter according to this invention, the said guides are provided with a retractable stop component that prods the said index plate to rotate, comprising a positioning pillar that can extend out of the guide rails, a push rod that uplifts the positioning pillar, and a spring set between the positioning pillar and the rack that makes the positioning pillar relocatable. Thus the angle adjusting mechanism can provide more angle values, and the number of shapes of resulted food is further increased. 
     In the food cutter according to this invention, the said index plate is provided with at least one step that matches the said stop component. The step can further increase the number of angle values the angle adjusting mechanism can provide and further increase the number of shapes of resulted food. 
     In the food cutter according to this invention, the said rack further comprises a support and supporting legs installed beneath the support, and the said slideway is installed above the support. 
     In the food cutter according to this invention, the said supporting legs comprise a supporting tube designed at the front end of the support and supporting pillars designed at the rear end of the support. 
     In the food cutter according to this invention, non-slip mats are set at the bottoms of the said supporting tube and the supporting pillars. 
     In the food cutter according to this invention, a positioning groove is designed on the lower part of the said support that is hung on the container wall. 
     The use of this invention has the following beneficial effect: the handguard for gripping food of the food cutter can avoid sliding back and forth along the slideway with the hand directly holding food to effectively prevent the hand from being scratched by blade carriers and provide safer use. In addition, the guide rails and the slide rails that match each other between the slideway and the bottom of the handguard prevent the handguard from deviating when sliding along the slideway, that is the positions of the blade carriers and the food vertical to the slideway will not change significantly, thus ensures the shapes of resulted food are regular. Furthermore, when the handguard is being operated, no force is needed to precisely control the sliding direction of the handguard, thus provides more labor-saving use. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is an explosive view of the food cutter according to this invention; 
         FIG. 2  is a space diagram of the food cutter according to this invention; 
         FIG. 3  is a space diagram of the rack of the food cutter according to this invention; 
         FIG. 4  is a 3 dimensional diagram of another side of the rack of the food cutter according to this invention; 
         FIG. 5  is an enlarged view of Part I of  FIG. 3 . 
         FIG. 6  an explosive view of the retractable stop component on the guides of the food cutter according to this invention; 
         FIG. 7  is a space diagram of the handguard of the food cutter according to this invention; 
         FIG. 8  is a 3 dimensional diagram of another side of the handguard of the food cutter according to this invention; 
         FIG. 9  is a front view of the handguard of the food cutter according to this invention; 
         FIG. 10  is an upward view of  FIG. 9 ; 
         FIG. 11  is an A-A sectional view of  FIG. 9 ; 
         FIG. 12  is a 3 dimensional diagram of the outer rotating cylinder in the preferred case of the food cutter according to this invention; 
         FIG. 13   a  is a state diagram of the index plate of the food cutter according to this invention when it is in the first position; 
         FIG. 13   b  is a state diagram of the index plate of the food cutter according to this invention when it is in the second position; 
         FIG. 14   a  is a structure diagram of the front teeth blade carrier of the food cutter according to this invention; 
         FIG. 14   b  is a structure diagram of the rear teeth blade carrier of the food cutter according to this invention; 
         FIG. 14   c  is a structure diagram of the front wave blade carrier of the food cutter according to this invention; 
         FIG. 14   d  is a structure diagram of the rear wave blade carrier of the food cutter according to this invention; 
         FIG. 14   e  is a structure diagram of the lower flat blade carrier of the food cutter according to this invention; 
         FIG. 14   f  is a structure diagram of the upper flat blade carrier of the food cutter according to this invention; 
         FIG. 14   g  is a structure diagram of the auxiliary wave blade of the food cutter according to this invention; 
         FIG. 15  is a magnified view of Part II of  FIG. 3 . 
     
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
     As shown in  FIGS. 1 ,  2 ,  3  and  4 , the food cutter according to this invention comprises a stander  100 , blade carriers  200 , and a handguard  300  for gripping food. Wherein the rack  100  comprises a support  110  and a slideway  120  set on the support  110 , with the blade carriers  200  located on the slideway  120  and the handguard  300  being able to slide back and forth along the slideway  120 . Thus when the handguard  300  gripping food slides along the slideway  120 , the food can be cut by the blade carriers  200  located on the slideway  120  into slices or shreds in all shapes. 
     Particularly, as shown in  FIGS. 2 ,  3  and  4 , the slideway  120  preferredly consists of a panel, and two parallel guide rails  130  are installed on two sides of the slideway  120 . A number of raised long and thin fillets  121  can be set on the surface of the panel. The fillets  121  are parallel to the guide rails  130 , and play the role of guiding when food slides along the surface of the panel, thus reduces the slide resistance of the food on the panel and provides more labor-saving operation. 
     In this preferred case, a front blade carrier  210  and a rear blade carrier  210 ′ are installed vertical to the guide rails  130  on the slideway  120 . Each of the front blade carrier  210  and the rear blade carrier  210 ′ consists of a blade board  211  and blade edges  212  fixed on the blade board with fasteners. Particularly, a front slot  122  and a rear slot  123  can be set vertical to the guide rails  130  on the slideway  120 , with the blade board  211  of the front blade carrier matching the front slot  122 , so that the blade board  211  of the front blade carrier can be exactly inserted into the front slot  122  and the plane of the blade board  211  is parallel and level to the slideway  120 ; and with the blade board  211 ′ of the rear blade carrier matching the rear slot  123 , so that the blade board  211 ′ of the rear blade carrier can be exactly inserted into the rear slot  123  and the plane of the blade board  211 ′ is parallel and level to the slideway  120 . The blade edges  212 ,  212 ′ of the front blade carrier and the rear blade carrier can be set to the shape of wave or teeth as required to form the front wave blade carrier  210   a  as shown in  FIG. 14   c , the front teeth blade carrier  210   b  as shown in  FIG. 14   a , the rear wave blade carrier  210   a ′ as shown in  FIG. 14   d , and the rear teeth blade carrier  210   b ′ as shown in  FIG. 14   b.    
     An auxiliary blade carrier  220  can also be set at the end of the slideway  120  of the rack, and similarly the auxiliary blade carrier  220  consists of a blade board  221  and blade edges  222  fixed on the blade board  221  with fasteners  223 . Particularly, a nick  124  is set at the end of the slideway  120  of the rack, with the blade board  221  of the auxiliary blade carrier matching the nick  124 , so that the blade board  221  can be exactly embedded into the nick  124  of the slideway to ensure the whole slideway  120  is continuous; and with a buckle  224  and a trough  124   a  that match each other set between the blade board  221  of the auxiliary blade carrier and the nick  124  of the slideway, so that the blade board  221  can be snapped in the nick  124 , without shift from the nick  124 . In order to remove the auxiliary blade carrier  220  easily, a groove  225  can be installed at the end of the blade board  221  of the auxiliary blade carrier, as the buckle  224  can be separated from the trough  124   a  when the user&#39;s hand reaches inside the groove  225  and pushes the blade board  221  upwards, thus removes the auxiliary blade carrier  220 , which is convenient for replacing the auxiliary blade carrier. The blade edges  222  of the auxiliary blade carrier can be set to the shape of wave or flat plate as required to form the auxiliary wave blade carrier  220   a  as shown in  FIG. 14   g  and the auxiliary flat blade carrier, and the height of the blade board of the auxiliary flat blade carrier can be set as required to form the upper flat blade carrier  220   b  as shown in  FIG. 14   f  and the lower flat blade carrier  220   c  as shown in  FIG. 14   e .  FIG. 14   f  is a structure diagram of the upper flat blade carrier of the food cutter according to this invention. 
     As shown in  FIG. 1 , an auxiliary flat plate  220   d , instead of blade carriers, can be set in the nick  124  of the slideway according to the requirement of combination. The auxiliary flat plate  220   d  matches the nick  124 , so that the auxiliary flat plate  220   d  can exactly fill the nick  124  of the slideway  120  to ensure the whole slideway  120  is continuous. 
     Thus the whole slideway  120  of the rack is provided with three sets of blade carriers, and when the handguard  300  slides back and forth on the different sections of the slideway  120 , food can be cut into different shapes. If the front wave blade carrier  210   a  is inserted into the front slot  122 , as the blade edges have the shape of wave, when the handguard  300  gripping food slides back and forth near the front slot  122  on the slideway  120 , the food will have a wave shape. If the upper flat blade carrier  220   b  or the lower flat blade carrier  220   c  is placed in the nick  124 , due to the difference in the height of the blade edges, when the handguard  300  gripping food slides back and forth near the nick  124  on the slideway  120 , the food can be cut into slices of different degrees of thickness. 
     If the rear teeth blade carrier  210   b ′ is inserted into the rear slot  123  and the auxiliary flat blade carrier is placed in the nick  124  of the slideway  120 , when the handguard  300  gripping food slides back and forth near the rear slot  123  and the nick  124  on the slideway  120 , the rear teeth blade carrier  210   b ′ can cut the food into equally spaced bars on and the bars are cut off with the auxiliary flat blade carrier, thus forms food bars of the same size and length. 
     As shown in  FIGS. 5 ,  7 ,  8 ,  9 ,  10 ,  11  and  12 , in this preferred case, the handguard  300  is provided with slide rails  310  at the bottom, and the said slide rails  310  match the guide rails  130 , so that the handguard  300  can slide back and forth along the two guides  130 . As shown in  FIG. 5 , the section of the said guide rails  130  has the shape of half “I”, and comprises a horizontal bearing surface  131 , a vertical baffle surface  132  and a horizontal groove surface  133 , with the space between the horizontal bearing surface  131  and the horizontal groove surface  133  forming a guide groove  134 . The handguard  300  comprises a handguard base  320  and a food storage mechanism  330 . As shown in  FIG. 9 , the said slides  310  are set at the bottom of the handguard base  320 , comprising a bottom bearing surface  311  in contact with the horizontal bearing surface  131  of the guides and a slide groove  312  that matches the horizontal groove surface  133  of the guides, with the bottom bearing surface  311  of the slides extending into the guide groove  134  and the horizontal groove surface  133  of the guides extending into the slide groove  312 , so that the slide rails  310  and the guide rails  130  embed and match each other and the slides  310  can slide along the guide rails  130  only, without rotation or shift in other direction, thus ensures the handguard  300  slides back and forth on the slideway  120  along the guide rails  130  very smoothly. It would be best to set trolleys  401  between the slide rails  310  and the guide rails  130 . As shown in  FIG. 10 , in this preferred case, each slide rail  310  is provided with two trolleys  401 , so that when the handguard  300  slides back and forth along the slideway  120 , the friction coefficient between the slide rails  310  and the guides  130  is smaller, thus the force for operating the handguard  300  is reduced and the operation is easier and more labor-saving. As shown in  FIG. 5 , in order to mount the handguard base  320  on the guide rails  130 , an opening  135  is set at the front end of the guide rails  130 , that is the opening  135  is set on the horizontal groove surface  133  of the guide rails  130 , so that the bottom bearing surface of the slide rails  310  of the handguard base  320  can enter the space between the horizontal bearing surface  131  and the horizontal groove surface  133  of the guides from the opening  135 , thus the slide rails  310  and the guide rails  130  can intersect and coordinate each other.  FIG. 13   b  is a state diagram of the index plate-of the food cutter according to this invention when it is in the second position. 
     In this preferred case, an outer fixed sleeve  340  is fixed on the handguard base  320 , and the said food storage mechanism  330  is set inside the outer fixed sleeve  340 , comprising an outer rotating cylinder  350  and an inner rotating cylinder  360 . The handguard base  320  is provided with a through-hole  321 ; the outer fixed sleeve  340  is fixed at the through-hole  321  of the handguard base; and the diameter of the through-hole  321  equals to the inner diameter of the outer fixed sleeve  340 . The outer rotating cylinder  350  is set inside the outer fixed sleeve  340 ; the outer fixed sleeve  340  is provided with a step  341  on the side wall near the handguard base  320 ; and the outer rotating cylinder  350  is provided with two retainers  351  in the corresponding positions on the outer side wall. The outer rotating cylinder  350  is inserted into the outer fixed sleeve  340  from one end of the handguard base  320 , and the retainers  351  are exactly snapped in the step  341  on the inner side wall of the outer fixed sleeve  340 , thus the outer rotating cylinder  350  is prevented from axially moving inside the outer fixed sleeve  340 , but can rotate relatively to the outer fixed sleeve  340 . The inner rotating cylinder  360  is set inside the outer rotating cylinder  350 , and ribs  352  and grooves  361  that match each other are set on the coordinative cylindrical surface between the inner rotating cylinder  360  and the outer rotating cylinder  350 , so that when the inner rotating cylinder  360  is inserted into the outer rotating cylinder  350 , the inner rotating cylinder  360  can rotate together with the outer rotating cylinder  350 . Steel needles  362  that can stab in food are set inside the inner rotating cylinder  360 . The food is mounted on the steel needles  362  of the inner rotating cylinder, and the inner rotating cylinder  360  is inserted into the outer rotating cylinder  350  and extends beneath the handguard base  320  through the through-hole  321  from the bottom of the outer fixed sleeve  340 . When the handguard  300  is pushed to slide on the slideway  120  of the rack, the food stabbed by the steel needles  362  of the inner rotating cylinder of the food storage mechanism can be cut by the blade carriers located on the slideway  120  into various shapes. 
     In order to avoid the need to continuously adjust the position of food, a feeder  370  is also set on the inner rotating cylinder  360 . The feeder  370  comprises a connecting rod  371 , a gland  372 , and a push-tray  373 , with the two ends of the connecting rod  371  connected with the gland  372  and the push-tray  373  respectively, particularly with a fixed connection between the connecting rod  371  and the push-tray  373 , and a threaded connection between the connecting rod  371  and the gland  372 , so that the whole feeder  370  can be assembled/disassembled on/from the inner rotating cylinder  360  easily. The central section of the connecting rod  371  passes through the connecting hole  363  set at the end of the inner rotating cylinder  360 , and the push-tray  373  is located inside the inner rotating cylinder  360  and is provided with needle holes  374  that match the steel needles  362 . The food storage mechanism  330  is taken out; the end provided with the push-tray  373  is pressed down toward the food; the push-tray  373  is pushed into the inner rotating cylinder  360 ; and the steel needles stab in the food, thus the food is gripped inside the inner rotating cylinder  360 . When the handguard  300  is assembled and cutting begins, the gland  372  of the feeder can be pushed inward continuously to drive the push-tray  373  to push the food from the inner rotating cylinder  360 , thus sends out the food to the slideway  120  continuously to provide easier and quicker operation. As shown in  FIG. 10 , it would be best that uniformly distributed short thrusts  375  are set on the surface of the push-tray  373  to stab in food, so that the food can be gripped more steadily and reliably. As shown in  FIG. 7 , in order to easily take out the inner rotating cylinder  360  to supplement food, two gaps  343  are set up on the side wall of the outer fixed sleeve  340 , so that the inner rotating cylinder  360  can be easily taken out of the outer rotating cylinder  350  with the hand. 
     In order to protect fingers during cutting, a protective flange  322  is installed around the handguard base  320 , thus shelters the fingers of the user to prevent contact between the fingers and the blade edges during use and prevent the fingers from being injured. 
     In order to cut food into more shapes, the food cutter in this preferred case is also provided with an angle adjusting mechanism. As shown in  FIGS. 1 ,  3 ,  6 ,  10 ,  12  and  15 , the angle adjusting mechanism comprises an index plate  510  installed on the outer rotating cylinder and a stop  520  installed on the guides. The index plate  510  is fixed at the extension of the outer rotating cylinder  350  near the handguard base, and can drive the outer rotating cylinder  350  to rotate together inside the outer fixed sleeve  340 . As shown in  FIG. 15 , the said stop  520  is the end point on the gap  132   a  installed on the vertical baffle surface  132  of the guides  130 . The index plate  510  is designed to have proper thickness, so that when the handguard base  320  slides on the guides  130 , the upper surface of the vertical baffle surface  132  of the guides is lower than the bottom of the handguard base  320 , and higher than the lower surface of the index plate  510  at the extension of the outer rotating cylinder. 
     As shown in  FIGS. 3 ,  13   a  and  15 , when the handguard  300  is located at the front end of the slideway  120 , the angle of the index plate is 0°. When the handguard  300  is pushed to slide forward to the front blade carrier  210 , as the stop  520  is higher than the lower surface of the index plate  510 , the stop  520  will prod the shift fork  511  of the index plate to rotate and the index plate  510  will drive the outer rotating cylinder  350  to rotate together with the inner rotating cylinder  360 ; as shown in  FIG. 10 , when the index plate  510  rotates by 90°, the shift fork  511  has separated itself from the slide rails  310  and is located right above the slideway  120 , that is separated from the stop  520 , and now the index plate  510  will not rotate any longer. When the handguard  300  slides back, the shift fork  511  of the index plate is prodded by another stop set on the guides, so that the index plate  510  rotates reversely, thus drives the outer rotating cylinder  350  to rotate reversely together with the inner rotating cylinder  360 ; when the index plate  510  rotates reversely by 90°, the shift fork  511  of the index plate  510  separates itself from another stop, and now the index plate  510  will not rotate any longer and the handguard  300  returns to the front end of the slideway  120 . Thus when the handguard  300  with food passes through the front blade carrier  210  during its slide back and forth along the slideway  120 , the food driven by the inner rotating cylinder  360  rotates by 90°, thus the food is cut into various shapes. In this preferred embodiment, the said another stop is the positioning pillar  531  of the stop component described below. 
     From the above, when the sand  520  is located in different positions on the guides  130 , the index plate  510  will rotate by different angles. Therefore, the position of the stop  520  on the guide rails  130  can be set to be adjustable. If the stop is designed on the slider that can slide along the guide rails  130 , the position of the stop on the guides is adjusted by adjusting the position of the slider relative to the guide rails  130 , thus adjusts the angle the index plate  510  rotates. 
     As shown in  FIGS. 6 and 15 , in this preferred embodiment, the guide rails  130  are provided with a retractable stop component  530 . The stop component  530  comprises a positioning pillar  531  set in the gap  132   a  of the vertical baffle surface, a push rod  532  and a spring  533 . The positioning pillar  531  can slide in the direction perpendicular to the sliding surface of the handguard  300 ; the push rod  532  set inside the guide rails  130  comprises a button  534  that can drive the push rod  532  to slide along the guide rails  130  and a push plate  535  at the bottom of the positioning pillar  531 , and the push plate  535  is provided with a plane  535   a  and a slope  535   b . When pushed, the button  534  of the push rod can drive the push rod  532  to slide back and forth along the guide rails  130 , thus drives the push plate  535  of the push rod to slide along the guide rails  130 . The slope  535   b  on the push plate drives the bottom of the positioning pillar  531  to rise, thus the top of the positioning pillar  531  extends above the upper surface of the gap  132   a  to form a new stop. The spring  533  is set between the positioning pillar  531  and the support  110 , and when the push rod  532  returns and the plane  535   a  of the push plate  535  moves to the bottom of the positioning pillar  531 , the spring  533  can make the positioning pillar  531  drop automatically, so that the top of the positioning pillar  531  is lower than the upper surface of the gap  132   a  to change the role as a stop of the positioning pillar  531 . Therefore, the stop component  530  forms a movable stop at the gap. Whether the stop is needed depends on the requirement. As shown in  FIG. 15 , the positioning pillar  531  in the stop component  530  has extended, that is a movable stop has been formed within the gap  132   a , and the shift fork  511  of the index plate is prodded between the movable stop and the stop, so the index plate  510  can be prodded to rotate by 45° only. 
     A step  512  can also be set on the index plate  510 , and when the positioning pillar  531  in the stop component is uplifted, its top will be higher than the lower surface of the index plate  510  and lower than the step surface of the index plate  510 ; now a new shift fork  511 ′ different from the shift fork  511  is formed on the step surface of the index plate  510 , with the arm length (i.e. the distance from the contact between the shift fork and the stop to the center of rotation) adjustable as required, which can also change the angle the index plate  510  rotates. Multiple steps can be installed on the index plate  510  as required, thus when the positioning pillar  531  in the stop component is uplifted to different degrees of height to match different steps, the index plate  510  can rotate by different angles. 
     Thus the rotation angle of the index plate  510 , i.e. the rotation angle of food, can be selected by adjusting the stop component  530  or prodding the different step surfaces on the index plate  510 , and food can be cut into different shapes. For example, the front teeth blade carrier  210   b  is inserted into the front slot  122 , the rear teeth blade carrier  210   b ′ is inserted into the rear slot  123 , and the auxiliary flat blade carrier is snapped in the nick  124  of the slideway  120 ; when the handguard  300  drives the food to slide through the front teeth blade carrier  210   b , equally spaced stripes are formed at the bottom of the food; the corresponding stop is adjusted to make the food rotate by 90°; the handguard  300  is pushed to drive the food to pass through the rear teeth blade carrier  210   b ′, and now square grids are formed at the bottom of the food; when the food passes through the auxiliary flat blade carrier, the bottom of the food with grids is cut off to form square resulted food. During the above process, when the corresponding stop is adjusted, so that after the handguard  300  passes through the front teeth blade carrier  210   b , the index plate  510  drives the food to rotate by 45° and then the food passes through the rear teeth blade carrier  210   b ′, the resulted food will have a rhombic (diamond) shape. 
     As shown in  FIG. 4 , in the above case, the rack  100  further comprises supporting legs set beneath the support  110  for supporting the whole rack  100 . Preferably, the supporting leg near the front end of the support  110  are set as a supporting tube  112 , particularly two supporting arms  113  can be set beneath the support  110  with one end connected to the front end of the support  110 , and the supporting tube  112  is fixed between the other ends of the two supporting arms  113  with fasteners; at the same time, the supporting legs set near the rear end of the support  110  are two supporting pillars  114 , so that the whole rack  100  is supported by the supporting tube  112  and two supporting pillars  114 . It is preferable to install non-slip mats  115  at the bottoms of the supporting tube  112  and the supporting pillars  114  to prevent the rack  100  from slipping easily and provide smooth use. A positioning groove  116  can also be installed on the lower part of the support  110 , and the positioning groove  116  can be hung on the container wall, so that the food cut from the slideway  120  directly falls in the container to avoid secondary pollution; in order to adapt to containers of different sizes, multiple positioning grooves  116  can be installed on the lower part of the support  110 . 
     The foregoing description of the preferred embodiments of the present invention has been presented for the purpose of illustration and description. It is not intended to be exhaustive or to limit the invention to the precise form disclosed. Many modifications and verifications are possible in light of the above teaching. It is intended that the scope of the invention be limited not by this detailed description, but rather by the claims appended hereto. Since many embodiments of the present dises in the claims hereafter appended.