Sandwich maker hinge structure and sandwich maker

Abstract

The present invention relates to a sandwich maker hinge structure, including a hinge assembly, wherein the hinge assembly connects the upper cover and the base of the sandwich maker by hinges so that the upper cover can be opened relative to the base in a flipping manner, and is characterized in that: the hinge assembly includes a base hinge cylinder fixedly connected to the base, a hinge shaft fixedly connected to the upper cover, and a limit cylinder arranged inside the base hinge cylinder, the hinge shaft includes a hinge shaft cylinder and a mounting arm, the hinge shaft cylinder extends into the limit cylinder, a limit strip is arranged on the outer wall of the hinge shaft cylinder, the inner wall of the limit cylinder is adapted to the limit strip to set a first angle limit, and the inner cavity height of the limit cylinder is greater than the outer diameter of the hinge shaft cylinder, so that the hinge shaft cylinder can be lifted upward, driving the limit strip to cross the first angle limit, thereby escaping from the restriction of the first angle limit. The present invention can realize two opening modes and two closing heights, and both thick and thin foods can be baked, and the product has powerful functions and is easy to use.

Description

Technical Field

[0001] The present invention relates to the technical field of sandwich makers, and more particularly to a sandwich maker hinge structure and a sandwich maker. Background Art

[0002] Sandwich makers are a common cooking tool that can be used for a variety of cooking methods such as baking, roasting, and frying. There is a huge market demand for them. At present, most sandwich makers on the market are split-open, with the upper cover connected to the base by a hinge structure. When in use, the upper cover is opened and unfolded toward the back of the sandwich maker. Generally speaking, a sandwich maker with double-sided heating has an unfolding angle of 180°, which is convenient for frying, roasting, and reheating food, that is, when it is placed horizontally; when people use sandwich makers to heat food, they often only need to unfold the sandwich maker to about 108°, then put the ingredients into the sandwich maker, and close the upper cover. Therefore, consumers hope that the sandwich maker can have two opening positions of 180° and about 108° to make operation more convenient. Summary of the invention

[0003] The object of the present invention is to provide a sandwich maker hinge structure having at least two opening gear structures and a sandwich maker thereof, so as to overcome the deficiencies of the prior art.

[0004] The technical solution to solve the technical problem of the present invention is: a sandwich maker hinge structure, including a hinge assembly, the hinge assembly hinges the upper cover and the base of the sandwich maker so that the upper cover can be opened relative to the base in a flipping manner, characterized in that: the hinge assembly includes a base hinge cylinder fixedly connected to the base, a hinge shaft fixedly connected to the upper cover, and a limit cylinder arranged inside the base hinge cylinder, the hinge shaft includes a hinge shaft cylinder and a mounting arm, the hinge shaft cylinder extends into the limit cylinder, a limit strip is arranged on the outer wall of the hinge shaft cylinder, the inner wall of the limit cylinder is adapted to the limit strip to set a first angle limit, the inner cavity height of the limit cylinder is greater than the outer diameter of the hinge shaft cylinder, so that the hinge shaft cylinder can be lifted upward, driving the limit strip to cross the first angle limit, thereby breaking away from the restriction of the first angle limit.

[0005] The beneficial effects of the present invention are:

[0006] 1) The invention can realize two opening modes and two closing heights of the lid by setting the cooperation of the hinge shaft limit strip and the limit cylinder. The lid can be stopped at about 108° with a buckle limit. When the upper lid is rotated to about 90°, the buckle is released and lifted, and then it can be rotated to a fully unfolded state. The lid is closed naturally, the buckle is limited, and the lid is not propped up. At this time, thin food can be baked. If the lid is rotated to about 90°, the buckle is released and lifted while rotating the lid to close, thick food can be baked.

[0007] 2) The hinge shaft and the limit cylinder are buckled inside, and the product has a beautiful appearance.

[0008] 3) The side-opening sandwich maker of the present invention adopts a side-opening design to prevent the user's arm from passing over the top of the sandwich maker when opening the upper cover, thereby effectively preventing the large amount of hot air and splashing oil brought out by the opened upper cover from causing possible damage to the user's arm, and the use environment is safer.

[0009] 4) The upper and lower baking trays of the present invention are detachable, and the baking trays are installed with the upper cover and the base by elastic locking means. When cleaning is required, the baking trays can be taken out from the upper cover or the base by simply pressing the upper and lower baking trays, which is very convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of a sandwich maker of the present invention.

[0011] Figure 2 It is an exploded view of the sandwich maker of the present invention.

[0012] Figure 3 It is a cross-sectional view of the sandwich maker of the present invention (closed state of toasted thin ingredients).

[0013] Figure 4 It is a cross-sectional view of the sandwich maker of the present invention (first cover-opening state).

[0014] Figure 5 It is a cross-sectional view of the sandwich maker of the present invention (in a state where the cover is opened and lifted).

[0015] Figure 6 It is a cross-sectional view of the sandwich maker of the present invention (second open cover state).

[0016] Figure 7 It is a cross-sectional view of the sandwich maker of the present invention (in a state where the lid is closed and lifted).

[0017] Figure 8 It is a cross-sectional view of the sandwich maker of the present invention (closed cover state for toasting thick ingredients).

[0018] Fig. 9 It is a partial cross-sectional view of the sandwich maker of the present invention (snapping structure).

[0019] Fig.10 It is a schematic diagram of the structure of the positioning groove of the limit bar of the sandwich maker of the present invention.

[0020] Fig.11 It is an axonometric view of the hinge member of the sandwich maker of the present invention in the first direction.

[0021] Fig.12 It is an axonometric view of the hinge member of the sandwich maker of the present invention in the second direction.

[0022] Fig.13 It is a schematic diagram of the upper cover shell structure of the sandwich maker of the present invention.

[0023] Fig.14 It is an axonometric view of the limiting cylinder of the sandwich maker of the present invention in the first direction.

[0024] Fig.15 It is an axonometric view of the limiting cylinder of the sandwich maker of the present invention in the second direction.

[0025] Fig.16 It is a schematic diagram of the structure of the hinge cylinder of the sandwich maker of the present invention.

[0026] Fig.17 It is a cross-sectional view of the limiting cylinder structure of the sandwich maker of the present invention. DETAILED DESCRIPTION

[0027] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0028] See also Figure 1-17 The present invention discloses a sandwich maker hinge structure and a sandwich maker using the hinge structure. The sandwich maker comprises an upper cover 10, a base 20, and a hinge assembly 30. The hinge assembly hinges the upper cover and the base so that the upper cover can be opened relative to the base in a flipping manner.

[0029] The upper cover is provided with an upper cover shell 105, an upper fixed plate 106, and an upper baking plate 107 from top to bottom. The upper fixed plate is provided with an upper accommodating cavity and an upper heating tube 108, and the upper baking plate is placed in the upper accommodating cavity. The base has a heating structure substantially the same as that of the upper cover, and is provided with a lower baking plate 207, a lower fixed plate 206, and a base shell 205 from top to bottom. The lower fixed plate is provided with a lower accommodating cavity and a lower heating tube 208, and the lower baking plate is placed in the lower accommodating cavity. The foot near the hinge assembly end has a support plate for supporting the entire product and playing a heat insulation role.

[0030] The hinge assembly 30 of the sandwich maker hinges the upper cover 10 and the base 20 of the sandwich maker so that the upper cover can be opened relative to the base in a flipping manner. The hinge assembly includes a base hinge cylinder 3 fixedly connected to the base, a hinge shaft member 1 fixedly connected to the upper cover, and a limit cylinder 2 arranged inside the base hinge cylinder. The hinge shaft member 1 includes a hinge shaft cylinder 19 and a mounting arm 12. The hinge shaft cylinder extends into the limit cylinder. A limit strip 11 is arranged on the outer wall of the hinge shaft cylinder. The inner wall of the limit cylinder is adapted to the limit strip 11 to set a first angle limit 21. The inner cavity height of the limit cylinder is greater than the outer diameter of the hinge shaft cylinder, so that the hinge shaft cylinder can be lifted upward, driving the limit strip to cross the first angle limit, thereby escaping from the restriction of the first angle limit. Therefore, when the upper cover needs to be opened to 180 degrees, it is only necessary to lift the upper cover assembly rotated to the vertical state upward until the hinge shaft 1 touches the top of the limit tube 2. At this time, the limit bar 11 passes through the first angle limit 21. When the upper cover continues to be opened backward, the first angle limit 21 no longer restricts the angular displacement of the limit bar 11. Therefore, the upper cover can be turned over to a 180-degree horizontal placement state. Figure 4-6 shown.

[0031] The hinge of the sandwich maker can also achieve different spacings between the upper cover and the base to clamp food. The specific structure is: the same side of the inner wall of the limit cylinder is adapted to the limit strip 11 to set the second and third angle limits (22, 23), the second and third angle limits are located on the opposite side of the first angle limit 21, when the hinge cylinder is lifted up to the top of the limit cylinder and the cover is closed and rotated, the limit strip 11 crosses the second angle limit and is limited by the third angle limit. Figure 3 As shown, when the upper and lower baking trays require a smaller working distance, the upper cover is flipped around the hinge structure, and when the limit strip 11 moves from the first angle limit 21 (or passes the first angle limit 21) to the second angle limit 22, it is limited by the second angle limit 22, forming a relatively narrow working space. If a relatively high working space is required, when the upper cover is flipped to a near vertical state, the upper cover is lifted up, the hinge shaft 1 moves upward, the limit strip 11 passes the second angle limit 22, and then the upper cover is continued to be flipped. When the limit strip 11 moves to the third angle limit 23, it is limited by the third angle limit 23. At this time, a relatively high baking space can be formed. Figure 7-8 shown.

[0032] The base 20 is provided with a control seat 202 protruding upward at the end away from the hinge assembly, and the upper cover is provided with a frame handle 102 adapted to the shape of the control seat at the end away from the hinge assembly, and a control knob 203 is provided above the control seat. A timer is provided in the control seat, and the working time of the timer is adjusted by the control knob. A buckle is provided on one side of the frame handle. The buckle is roughly F-shaped, with a hook portion and an abutment portion. A notch is provided on the control seat side of the base, and a buckle connection can be achieved between the upper cover and the base by buckling with the notch. The matching relationship between the control seat and the frame handle is a clearance fit. When the cover is closed, the control seat just passes through the inner wall of the frame handle. Specifically:

[0033] A hinge shaft 6 is arranged in the middle section of the first frame bar of the frame-shaped handle, and a buckle 5 is hinged on the hinge shaft; a first notch 7 is arranged at the end away from the hinge assembly of the base, and the outer wall of the first notch includes a first wall portion 71 that is indented inwardly and a second wall portion 72 that is indented upwardly, a first pressure plate 73 is arranged on the first wall portion 71, and a downward ridge is arranged on the second wall portion 72; the buckle includes an F-shaped buckle arm and a hinged end that wraps more than a semicircle of the hinge shaft, the F-shaped buckle arm includes a second pressure plate 53 and an elastic buckle end 54 that is bent toward the hinge shaft 6, and when the elastic buckle end 54 is hooked on the ridge, the second pressure plate 53 is pressed against the first pressure plate 73; a first arc-shaped limiting groove 61 is arranged in the middle section of the hinge shaft 6, and a positioning protrusion 52 is arranged on the inner side of the hinged end of the buckle 5, the positioning protrusion 52 rotates in the first arc-shaped limiting groove 61, and an inwardly sunken groove 62 is arranged at the end of the first arc-shaped limiting groove 61. The hinge shaft end of the buckle 5 wraps more than 70% of the circumference of the hinge shaft 6, and the end opening 51 of the buckle 5 is retracted inward to prevent it from being loosened from the hinge shaft 6. When the buckle 5 is placed around the shaft to a fully open state, the positioning protrusion 52 passes over the protrusion at the end of the first arc-shaped limiting groove 61 and enters the groove 62 to form a relatively fixed position relationship. When the base needs to be buckled, a little force is required to release the positioning protrusion 52 from the groove 62, and then rotate it toward the base to buckle. When it needs to be opened again, force is applied to release the elastic buckle end 54 from the constraint.

[0034] The hinge assembly also includes an upper cover hinge 4, and the mounting arm 12 includes a mounting plate 121, an arc-shaped connecting plate 122, a hinge barrel extension plate 123, and a side arm 14 which is perpendicular to the arc-shaped connecting plate and connected to the hinge shaft barrel; a mounting hole 120 is arranged on the mounting plate 121, upper hinge shaft half sleeves 101 are arranged on both sides of the upper cover 10, and lower hinge shaft half sleeves 41 are arranged on both sides of the upper cover hinge 4, and the upper and lower hinge shaft half sleeves are combined to form a accommodating cavity that wraps the hinge shaft mounting arm 12; the hinge barrel extension plate 123 is connected to the hinge shaft barrel 19 and is consistent with the curvature of the hinge shaft barrel, the limit strip 11 extends from the hinge shaft barrel 19 to the hinge barrel extension plate 123, and a limit strip positioning groove 411 is arranged in the lower hinge shaft half sleeve 41; a positioning block 13 is arranged at the root of the hinge shaft barrel 19, and a positioning notch 1011 matching the positioning block 13 is arranged on the inner side wall of the upper hinge shaft half sleeve 101. In this way, the hinge shaft 1 is tightly wrapped, forming a tight fit with the upper cover and having a strong integrity. When the upper cover rotates, the hinge shaft 1 rotates synchronously. The two are tightly assembled and the operating experience is good.

[0035] The limiting cylinder includes a limiting cylinder body 25 and a rear extension 26. The hinge shaft cylinder 19 moves in the limiting cylinder body. The limiting cylinder body has first, second and third angle limits. A second arc-shaped limiting groove 27 is provided in the front cavity of the limiting cylinder body to avoid the passing of the limiting strip 11. The rear extension 26 is arc-shaped and extends all the way to the middle of the hinge cylinder member 39 to support and strengthen the connection strength with the hinge cylinder member 39. A mounting foot 24 is provided at the rear lower part of the limiting cylinder body 25. The mounting foot 24 is inserted into the matching mounting groove in the base shell to realize the positioning of the limiting cylinder on the base.

[0036] The base hinge cylinder is formed by the lower arc plate 201 of the base shell 205 and the upper arc plate 31 of the hinge cylinder member 39. The hinge cylinder member 39 also includes a transition connection portion 32 and a lower mounting seat 33. The lower mounting seats are symmetrically arranged on both sides of the transition connection portion. The lower mounting seat 33 is located below the lower hinge shaft half sleeve 41. An intermediate reinforcing plate 34 is arranged on the inner side of the hinge cylinder member 39, and a supporting plate 29 is arranged at the end of the rear extension portion 26 of the limiting cylinder. The supporting plate 29 is inserted below the intermediate reinforcing plate 34. The intermediate reinforcing plate acts as a reinforcing rib on the one hand, and on the other hand, it also allows the limiting cylinder to be more firmly installed in the base hinge cylinder 3.

[0037] The upper and lower baking trays are fixed and removable for cleaning by means of elastic locks. The lock can be moved forward and backward under the action of the lock spring. The lock and the lock hole can be locked and unlocked by moving the lock, so that the baking tray can be removed with one click. When using, open the upper cover, put the food in the sandwich baking tray, close the upper cover and the base, turn on the power, set the baking time with the timer, and you can start baking.

[0038] The above embodiments are preferred implementation modes of the present invention, but the implementation modes of the present invention are not limited to the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principles of the present invention should be equivalent replacement methods and are included in the protection scope of the present invention.

Claims

1. A sandwich maker hinge structure, comprising a hinge assembly, wherein the hinge assembly hinges an upper cover and a base of the sandwich maker so that the upper cover can be opened relative to the base in a flipping manner, characterized in that: The hinge assembly includes a base hinge cylinder fixedly connected to the base, a hinge shaft member fixedly connected to the upper cover, and a limit cylinder arranged inside the base hinge cylinder, the hinge shaft member includes a hinge shaft cylinder and a mounting arm, the hinge shaft cylinder extends into the limit cylinder, a limit strip is arranged on the outer wall of the hinge shaft cylinder, the inner wall of the limit cylinder is adapted to the limit strip to set a first angle limit, the inner cavity height of the limit cylinder is greater than the outer diameter of the hinge shaft cylinder, so that the hinge shaft cylinder can be lifted upward, driving the limit strip to cross the first angle limit, thereby escaping from the restriction of the first angle limit; the limit strip is adapted to set the second and third angle limits on the same side of the inner wall of the limit cylinder, the second and third angle limits are located on the opposite side of the first angle limit, and when the hinge shaft cylinder is lifted upward to the top of the limit cylinder and the cover is closed and rotated, the limit strip crosses the second angle limit and is limited by the third angle limit.

2. The sandwich maker hinge structure according to claim 1, characterized in that: The base is provided with an upwardly protruding control seat at the end away from the hinge assembly, the upper cover is provided with a frame handle matched with the shape of the control seat at the end away from the hinge assembly, and a control knob is provided above the control seat.

3. The sandwich maker hinge structure according to claim 2, characterized in that: A hinge shaft is arranged in the middle section of the first frame bar of the frame-shaped handle, and a hinge buckle is hinged on the hinge shaft; a first notch is arranged at the end of the base away from the hinge assembly, and the outer wall of the first notch includes a first wall portion that is retracted inwardly and a second wall portion that is retracted upwardly, a first pressure plate is arranged on the first wall portion, and a downward ridge is arranged on the second wall portion; the buckle includes an F-shaped buckle arm and a hinged end that wraps more than a semicircle of the hinge shaft, the F-shaped buckle arm includes a second pressure plate and an elastic buckle end that is bent toward the hinge shaft, and when the elastic buckle end is hooked on the ridge, the second pressure plate is pressed against the first pressure plate; a first arc-shaped limiting groove is arranged in the middle section of the hinge shaft, and a positioning protrusion is arranged on the inner side of the hinged end of the buckle, the positioning protrusion rotates in the first arc-shaped limiting groove, and an inwardly sunken groove is arranged at the end of the first arc-shaped limiting groove.

4. The sandwich maker hinge structure according to claim 3, characterized in that: The upper cover comprises an upper cover shell, an upper fixed plate, and an upper baking plate. The upper fixed plate is provided with an upper accommodating cavity and an upper heating tube, and the upper baking plate is placed in the upper accommodating cavity; the base comprises a lower baking plate, a lower fixed plate, and a base shell. The lower fixed plate is provided with a lower accommodating cavity and a lower heating tube, and the lower baking plate is placed in the lower accommodating cavity.

5. The sandwich maker hinge structure according to any one of claims 1 to 4, characterized in that: It also includes an upper cover hinge, and the mounting arm includes a mounting plate, an arc-shaped connecting plate, a hinge cylinder extension plate, and a side arm perpendicular to the arc-shaped connecting plate and connected to the hinge shaft cylinder; upper hinge shaft half sleeves are arranged on both sides of the upper cover, and lower hinge shaft half sleeves are arranged on both sides of the upper cover hinge, and the upper and lower hinge shaft half sleeves are combined to form a accommodating cavity that wraps the hinge shaft mounting arm; the hinge cylinder extension plate is connected to the hinge shaft cylinder and is consistent with the curvature of the hinge shaft cylinder, the limit bar extends from the hinge shaft cylinder to the hinge cylinder extension plate, and a limit bar positioning groove is arranged in the lower hinge shaft half sleeve; a positioning block is arranged at the root of the hinge shaft cylinder, and a positioning notch matched with the positioning block is arranged on the inner side wall of the upper hinge shaft half sleeve.

6. The sandwich maker hinge structure according to claim 5, characterized in that: The limiting cylinder comprises a limiting cylinder body and a rear extension portion, the hinge shaft cylinder moves within the limiting cylinder body, the limiting cylinder body has first, second and third angle limits, and a second arc-shaped limiting groove is provided in the front cavity of the limiting cylinder body to avoid the passing of the limiting strip.

7. The sandwich maker hinge structure according to claim 6, characterized in that: The base hinge cylinder is formed by the lower arc plate of the base shell and the upper arc plate of the hinge cylinder member. The hinge cylinder member also includes a transition connection part and a lower mounting seat. The lower mounting seat is symmetrically arranged on both sides of the transition connection part. The lower mounting seat is located below the lower hinge shaft half sleeve. An intermediate reinforcing plate is arranged on the inner side of the hinge cylinder member, and a supporting plate is arranged at the end of the rear extension of the limiting cylinder. The supporting plate is inserted below the intermediate reinforcing plate.

8. A sandwich maker, characterized in that: It includes the sandwich maker hinge structure as described in claim 1.

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